阅读说明：本技术 电子控制装置 (Electronic control device ) 是由 斋藤正人 渡会庆仁 于 2020-05-15 设计创作，主要内容包括：本发明的电子控制装置(1)具备连接器(2),连接器具备连接器主体部(21)和多个端子(23),连接器主体部具备安装面(24)和处于面(25)上的密封配置部(210),密封配置部具备第1密封配置部(211)和第2密封配置部(212),所述第1密封配置部(211)沿端子的排列方向形成,所述第2密封配置部(212)接续于第1密封配置部的两端部(213),随着去往电子控制基板(6)的与一端侧相对的另一端侧而向电子控制基板侧倾斜,第1密封配置部在其两端部具备多个规定部位(2112),所述多个规定部位(2112)形成为随着从第1密封配置部的中央侧去往第1密封配置部的两端侧而去往电子控制基板侧,盖体(3)具备多个弯折部(312),所述多个弯折部(312)形成为随着从盖体的中央侧去往盖体的两端侧而去往电子控制基板侧,各规定部位接触各弯折部。(An electronic control device (1) of the present invention is provided with a connector (2) having a connector main body part (21) and a plurality of terminals (23), the connector main body part having a mounting surface (24) and a seal arrangement part (210) on the surface (25), the seal arrangement part having a 1 st seal arrangement part (211) and a 2 nd seal arrangement part (212), the 1 st seal arrangement part (211) being formed along an arrangement direction of the terminals, the 2 nd seal arrangement part (212) being connected to both end parts (213) of the 1 st seal arrangement part, the 1 st seal arrangement part having a plurality of prescribed portions (2112) at both end parts thereof, the plurality of prescribed portions (2112) being formed to go to the electronic control substrate side as going from a center side of the 1 st seal arrangement part to both end sides of the 1 st seal arrangement part as going to the other end side of the 1 st seal arrangement part, the lid (3) is provided with a plurality of bent portions (312), and the plurality of bent portions (312) are formed so that, as going from the center side of the lid to the two ends side of the lid, going to the electronic control substrate side, each predetermined portion contacts each bent portion.)

1. An electronic control device is characterized by comprising:

an electronic control substrate;

a connector provided on one end side of one surface of the electronic control board;

a cover provided on the one surface side and covering the electronic control board and the connector;

a base provided on the other surface side of the electronic control board so as to face the cover; and

a sealing member interposed between the connector and the cover,

the connector is provided with:

a connector main body portion; and

a plurality of terminals arranged in a longitudinal direction of the connector body and protruding from the connector body toward the one end side,

the connector main body portion includes:

a mounting surface mounted to the electronic control substrate; and

a seal arrangement portion on a surface on a side opposite to the mounting surface, for arrangement of the seal member,

the seal arrangement unit includes:

a 1 st seal arrangement portion formed along an arrangement direction of the terminals; and

a 2 nd seal arrangement portion which is continuous to both end portions of the 1 st seal arrangement portion and is inclined toward the electronic control substrate side as going to the other end side of the electronic control substrate opposite to the one end side,

the 1 st seal arrangement portion is provided with a plurality of prescribed portions at both end portions thereof, the plurality of prescribed portions being formed to go to the electronic control substrate side from the center side of the 1 st seal arrangement portion to both end sides of the 1 st seal arrangement portion,

the lid body is provided with a plurality of bent portions formed to go to the electronic control substrate side as going from the center side of the lid body to both end sides of the lid body,

each of the predetermined portions contacts each of the bent portions.

2. The electronic control device according to claim 1,

the 1 st seal arrangement portion further includes a flat seal arrangement portion between the respective predetermined portions,

in the planar seal arrangement portion, the seal member is arranged along an arrangement direction of the terminals.

3. The electronic control device according to claim 2,

the planar seal arrangement portion includes a planar side groove portion in which the seal member is arranged,

each of the predetermined portions includes:

a predetermined groove part connected to the planar groove part; and

an end side groove part which is continuous with the predetermined groove part and the 2 nd seal disposition part,

the prescribed groove portion is formed in a shape going to the electronic control substrate side from the center side of the 1 st seal arrangement portion to both end sides of the 1 st seal arrangement portion,

the end side groove portion is located on the electronic control substrate side than the planar side groove portion.

4. The electronic control device according to claim 3,

the 2 nd seal disposition portion has an inclined groove portion continuous to the end side groove portion,

the depth of the inclined groove portion is formed longer than the depth of the planar side groove portion,

the lid body is provided with an inclined portion corresponding to the inclined groove portion,

the inclined portion is inserted into the seal member disposed in the inclined groove portion.

5. The electronic control device according to claim 1,

the 2 nd seal arrangement portion includes a bent portion bent in the arrangement direction of the terminals.

6. The electronic control device according to claim 5,

the electronic control unit is mounted to other devices by means of a plurality of mounting portions,

each of the mounting portions is provided at both ends of the base,

the bent portion is provided at a position of the 2 nd seal arrangement portion on the other end side of the electronic control board than the mounting portion provided on the one end side of the electronic control board.

7. The electronic control device according to claim 1,

the cover is mounted to the base by a plurality of fixing portions,

each of the fixing portions is provided at a position of the cover body on the other end side of the electronic control board than the connector main body portion.

8. The electronic control device according to claim 6,

the mounting portion is provided in a prescribed region of the base,

the predetermined region is a region in which the connector is provided in both ends of the chassis.

9. The electronic control device according to claim 3,

the predetermined portion further includes a predetermined bank portion formed by the predetermined groove portion,

the predetermined bank portion has the following inclined plane shape: going from the center side of the 1 st seal arrangement portion to both ends of the 1 st seal arrangement portion at an angle to the electronic control substrate side.

10. The electronic control device according to claim 3,

the depth of the end side groove portion is formed longer than the depth of the planar side groove portion,

the predetermined groove portion is formed in a stepped shape in a width direction from both ends of the planar side groove portion to the end side groove portion and to the connector main body portion.

11. The electronic control device according to claim 3,

the predetermined portion further includes a predetermined bank portion formed by the predetermined groove portion,

the prescribed bank portion is in the following arc shape: the slope of a tangent line to the predetermined bank portion in the arrangement direction of the terminals gradually changes from one end of the predetermined bank portion on the center side of the 1 st sealing arrangement portion to the other end of the predetermined bank portion on both end sides of the 1 st sealing arrangement portion.

12. The electronic control device according to claim 9,

the predetermined bank portion has at least one of an arc shape and the inclined surface shape, and the arc shape is as follows: a slope of a tangent line of the predetermined bank portion in the arrangement direction of the terminals gradually changes from one end of the predetermined bank portion at the center side of the 1 st encapsulation arrangement portion to the other end of the predetermined bank portion at both ends of the 1 st encapsulation arrangement portion;

the prescribed groove part is a combination of at least any two or more of an inclined plane shape, a step shape or an arc shape, and the inclined plane shape is as follows: the stepped shape goes to the electronic control substrate side at an angle from the center side of the 1 st seal arrangement portion to both ends of the 1 st seal arrangement portion as follows: the arc shape is as follows in a width direction from both ends of the planar side groove portion toward the end side groove portion and toward the connector main body portion: the slope of a tangent line to the predetermined bank in the arrangement direction of the terminals gradually changes from one end of the predetermined bank at the center of the 1 st encapsulating device to the other end of the predetermined bank at both ends of the 1 st encapsulating device.

13. The electronic control device according to claim 1,

the sealing member has a function of adhesion,

the connector and the cover are bonded by the sealing member.

14. The electronic control device according to claim 1,

the cover body is made of resin.

15. The electronic control device according to claim 1,

the cover body is made of metal.

Technical Field

The present invention relates to an electronic control device.

Background

Conventionally, there is an electronic control device that controls a vehicle. The electronic control device includes an electronic control board inside a housing. The electronic control device ensures waterproofness by providing a sealing member on the housing. However, the generation of a difference between the air pressure inside the housing and the air pressure outside the housing may cause the housing to deform. The difference between the air pressure inside the housing and the air pressure outside the housing is generated due to the temperature difference between the air inside the housing and the air outside the housing. The temperature difference between the air inside the casing and the air outside the casing is generated by self-heating of the vehicle, flooding, or the like. The deformation of the housing places a burden on the sealing member, thus causing the sealing member to move away from the housing. Thereby, the waterproofness of the electronic control device is impaired. In order to ensure waterproofness, the electronic control device is required to have a structure that suppresses the burden on the sealing member.

The technique of patent document 1 includes a parallel seal portion substantially parallel to the surface of the substrate, an outer peripheral seal portion, and an inclined seal portion connecting the parallel seal portion and the outer peripheral seal portion. In the inclined seal portion, a connection end with the outer peripheral seal portion is a deeper side of the internal space than a connection end with the parallel portion in the width direction. Thus, the electronic device can be miniaturized in the longitudinal direction of the case while suppressing the tearing of the sealing material.

The technique of patent document 2 includes a substantially trapezoidal connector, a cover body configured to fit the connector into a recess, and a sealing material for sealing between the connector and the cover body. The cover body inclined plane inclination angle formed by the side of the cover body opposite to the short side and the inclined plane is larger than the connector inclined plane inclination angle formed by the short side and the inclined plane in the connector. Since the connector slope inclination angle is smaller than the cover slope inclination angle, the amount of the sealing material jammed can be reduced. Thus, the filling amount of the sealing material can be sufficiently ensured even on the long side of the connector.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2009-230925

Patent document 2: japanese patent laid-open No. 2004-319169

Disclosure of Invention

Problems to be solved by the invention

In patent document 1, the water-proof property is ensured by the parallel seal portion, the outer peripheral seal portion, and the inclined seal portion. The electronic device can suppress the tearing of the sealing material when the upper cover and the lower cover are assembled to the connector by providing the inclined sealing portion. However, patent document 1 does not describe that the water resistance is weakened by the deformation of the upper cover or the lower cover.

In patent document 2, the sealing material on the long side of the connector is thicker than the sealing material on the short side of the connector. Thus, the sealing material can alleviate the influence of the stress received from the connector due to thermal expansion of the connector. However, patent document 2 does not describe that the waterproof property is impaired by deformation of the cover body.

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electronic control device capable of improving waterproof reliability.

Means for solving the problems

An electronic control device of the present invention includes: an electronic control substrate; a connector provided on one end side of one surface of the electronic control board; a cover body which is provided on one surface side and covers the electronic control board and the connector; a base provided on the other surface side of the electronic control board so as to face the cover; and a sealing member interposed between the connector and the cover, the connector including: a connector main body portion; and a plurality of terminals arranged in the direction of arrangement of the terminals and protruding from the connector body toward one end, the connector body including: a mounting surface mounted to the electronic control substrate; and a seal arrangement portion which is located on a surface on the side opposite to the mounting surface and on which the seal member is arranged, the seal arrangement portion including: a 1 st seal arrangement portion formed along an arrangement direction of the terminals; and a 2 nd seal arrangement portion which is connected to both end portions of the 1 st seal arrangement portion and is inclined toward the electronic control substrate side as going to the other end side of the electronic control substrate opposite to the one end side, the 1 st seal arrangement portion being provided at both end portions thereof with a plurality of predetermined portions which are formed so as to go to the electronic control substrate side as going from the center side of the 1 st seal arrangement portion to both end sides of the 1 st seal arrangement portion, the lid body being provided with a plurality of bent portions which are formed so as to go to the electronic control substrate side as going from the center side of the lid body to both end sides of the lid body, each predetermined portion being in contact with each bent portion.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the waterproof reliability can be improved.

Drawings

Fig. 1 is an exploded view of an electronic control device in embodiment 1.

Fig. 2 is a perspective view of the electronic control device.

Fig. 3 is an explanatory view of the seal arrangement portion.

Fig. 4 is a schematic sectional view of the electronic control device shown in fig. 3 cut along the IV-IV line.

FIG. 5 is an explanatory view of the 2 nd seal disposition portion in the 2 nd embodiment.

FIG. 6 is a schematic sectional view of the 2 nd seal arrangement part shown in FIG. 5 cut along line VI-VI.

Fig. 7 is a perspective view of the electronic control device in embodiment 3.

FIG. 8 is an explanatory view of the 2 nd seal arrangement part.

Fig. 9 is an explanatory view of the bending portion.

Fig. 10 is a perspective view of the electronic control device in embodiment 4.

Fig. 11 is an explanatory view of the mounting bracket in the 5 th embodiment.

FIG. 12 is an explanatory view of a seal arrangement portion in embodiment 6.

FIG. 13 is a schematic sectional view of the seal arrangement portion shown in FIG. 12 cut by XIII-XIII line.

FIG. 14 is an explanatory view of a seal arrangement portion in embodiment 7.

Fig. 15 is a schematic sectional view of the seal arrangement portion shown in fig. 14 cut along an XV-XV line.

FIG. 16 is an explanatory view of a seal arrangement portion in the 8 th embodiment.

Fig. 17 is a schematic sectional view obtained by wire-cutting the seal arrangement portion shown in fig. 16 from XVII to XVII.

Detailed Description

An embodiment of the present invention will be described below, but the present embodiment is not limited to the embodiments shown in the drawings. The present embodiment relates to an electronic control device 1 capable of improving waterproof reliability.

In the drawings, the x-axis direction represents, for example, the longitudinal direction of the connector body 21. The y-axis direction indicates, for example, a direction perpendicular to the x-axis direction, passing through one end side of the electronic control substrate 6 where the connector 2 is provided and the other end side corresponding to one end side of the electronic control substrate 6. The z-axis direction indicates, for example, a direction perpendicular to the surface of the electronic control board 6.

On the y-axis, the direction in which the connector 2 is located with respect to the electronic control board 6 is sometimes referred to as the near direction. On the y-axis, the direction in which the electronic control board 6 is located with respect to the connector 2 is sometimes referred to as the depth direction. On the z-axis, the direction in which the lid 3 is located with respect to the electronic control board 6 is sometimes referred to as an upward direction. In the z-axis, the direction in which the base 4 is located with respect to the electronic control board 6 is sometimes referred to as a downward direction.

In the following description, the "upper side" refers to a predetermined portion of a predetermined member located in the upper direction from the central portion. The "lower side" indicates a predetermined portion of the predetermined member located downward from the central portion. The "front side" means a predetermined portion of the predetermined member located in the front direction from the center. The "depth side" means a predetermined portion of the predetermined member located in the depth direction from the central portion.

The electronic control device 1 controls a vehicle, for example. The electronic control device 1 includes, for example, an electronic control board 6, a connector 2, a cover 3, a base 4, and a sealing member 5.

The electronic control board 6 is provided with an electronic circuit for controlling a vehicle, for example. The electronic circuit is provided with electronic components such as a memory for storing a program and a cpu (central Processing unit).

The connector 2 electrically connects, for example, a vehicle circuit to the electronic control board 6. The connector 2 is provided on one end side of the one surface 61 of the electronic control board 6.

The cover 3 protects the electronic control board 6 from foreign matter, liquid, or the like. The cover 3 is provided on the side of the one surface 61 of the electronic control board 6, and covers the electronic control board 6 and the connector 2. The cover 3 includes a plurality of bent portions 312, and the plurality of bent portions 312 are formed so as to go from the center of the cover 3 to the both ends of the cover 3 toward the electronic control board 6.

The base 4 supports the electronic control board 6, the connector 2, and the cover 3. The base 4 is provided on the other surface 62 side of the electronic control board 6 so as to face the cover 3.

The sealing member 5 suppresses intrusion of foreign matter, liquid, or the like into the electronic control device 1. The sealing member 5 is interposed between at least any two of the connector 2, the lid 3, and the base 4.

The connector 2 includes a connector body 21 and a plurality of terminals 23, and the plurality of terminals 23 are provided to protrude from the connector body 21 toward one end of the electronic control board 6.

The connector main body 21 includes a mounting surface 24 to be mounted on the electronic control board 6 and a surface 25 on the side opposite to the mounting surface 24. The connector main body 21 includes a seal arrangement portion 210 on the surface 25, in which the seal member 5 is arranged.

The seal arrangement portion 210 includes a 1 st seal arrangement portion 211 and a 2 nd seal arrangement portion 212. The 1 st seal arrangement portion 211 is formed along the longitudinal direction of the connector main body portion 21.

The 1 st seal arrangement portion 211 includes a plurality of predetermined portions 2112 at both end portions 213 thereof, and the plurality of predetermined portions 2112 are formed so as to go to the electronic control board 6 side from the center side of the 1 st seal arrangement portion 211 to both end sides of the 1 st seal arrangement portion. The predetermined portions 2112 contact the bent portions 312. That is, the bent portion 312 covers each predetermined portion 212.

The 2 nd seal arrangement portion 212 is continuous with both end portions 213 of the 1 st seal arrangement portion 211, and is inclined toward the electronic control board 6 side as going to the other end side of the electronic control board 6 opposite to the one end side.

Each terminal 23 electrically connects the vehicle circuit to the electronic control board 6. The terminals 23 are arranged in the longitudinal direction of the connector body 21.

In the electronic control device 1 shown above, the predetermined portion 2112 is provided, so that the bent portion 312 can be provided in the cover 3. The lid 3 having the bent portion 312 is less likely to be deformed than when formed in a planar shape when subjected to a force such as an increase in internal pressure to peel the lid 3 from the connector 2. As a result, the electronic control device 1 can suppress the burden on the sealing member 5, so the waterproof reliability can be improved.

An embodiment of the electronic control device 1 will be described with reference to the drawings.

Example 1

Fig. 1 is an exploded view of an electronic control device 1. The electronic control device 1 controls a vehicle, for example. The electronic control device 1 includes, for example, an electronic control board 6, a connector 2, a cover 3, a base 4, and a sealing member 5.

The electronic control board 6 is provided with electronic components such as a memory for storing a program and a CPU. The electronic control board 6 is formed in a planar quadrangular shape, for example. The electronic control board 6 has a through hole 611 formed therein from the one surface 61 to the other surface 62 at a position corresponding to a screw hole 44 described later. The electronic control board 6 is mounted on the base 4 by, for example, fixing screws in the through holes 611.

The connector 2 electrically connects, for example, a vehicle circuit to the electronic control board 6. The connector 2 is provided on the front side of the one surface 61 of the electronic control board 6. Further, the connector 2 may be electrically connected to the electronic control substrate 6 by solder, press-fit, or the like.

The connector 2 includes a connector main body 21 and a plurality of terminals 23. The connector main body 21 is formed of a portion formed in the x-axis direction where each terminal 23 is provided, and portions formed in the depth direction from both ends of the portion formed in the x-axis direction. The connector body 21 is made of resin such as PBT (PolyButylene Terephthalate), PA (PolyAmide), PPS (polyphenylene Sulfide), or the like.

The connector body 21 includes a mounting surface 24 to be mounted on the electronic control board 6 and a surface 25 on the side opposite to the mounting surface 24, for example. The mounting surface 24 is formed with, for example, a protrusion 241 protruding downward. The connector 2 is mounted on the base 4 by means of the projection 241.

The surface 25 is provided with a seal arrangement portion 210 in which the seal member 5 is arranged. The seal arrangement portion 210 includes, for example, a 1 st seal arrangement portion 211 and a 2 nd seal arrangement portion 212. The 1 st seal arrangement portion 211 is formed along the longitudinal direction of the connector main body portion 21. The 1 st seal disposition portion 211 includes a plurality of predetermined portions 2112 and a planar seal disposition portion 2111.

The predetermined portions 2112 are provided at both end portions 213 of the 1 st seal arrangement portion 211, for example. The predetermined portions 2112 are formed to extend downward from the center of the 1 st seal arrangement portion 211 to the opposite ends of the 1 st seal arrangement portion.

The plane seal disposition portion 2111 is disposed between the respective predetermined portions 2112. The 1 st seal arrangement portion 211 arranges the seal member 5 in the longitudinal direction of the connector main body portion 21.

The 2 nd seal arrangement portion 212 is continuous with both end portions 213 of the 1 st seal arrangement portion 211, and is inclined toward the electronic control board 6 side as going in the depth direction. One end of the lower side of the 2 nd seal disposing portion 212 is in contact with the base-side seal disposing portion 42.

Each terminal 23 protrudes from the connector body 21 toward one end of the electronic control board 6. The terminals 23 are arranged in the longitudinal direction of the connector body 21. Each terminal 23 includes, for example, a resin portion 231 and a metal wire (not shown). The resin portion 231 may be formed of the same material as the connector main body portion 21, for example.

The cover 3 protects the electronic control board 6 from foreign matter, liquid, or the like. The cover 3 is provided on the side of the one surface 61 of the electronic control board 6, and covers the electronic control board 6 and the connector 2. The lid 3 includes an upper surface 31 provided in the upper direction of the electronic control board 6, a plurality of side surfaces 32 provided at both ends of the upper surface 31 in the x-axis direction, a rear surface 33 provided at one end of the upper surface 31 in the depth direction, and a stopper 34.

The upper surface 31 includes, for example, a flat portion 311 formed in a planar shape and a plurality of bent portions 312. The flat surface portion 311 is located between the bent portions 312 in the x-axis direction. The bent portion 312 is formed to go downward from both ends of the planar portion 311 in the x-axis direction toward the side surface 32.

Each side surface 32 includes an inclined portion 321 on the front side. The inclined portion 321 is formed, for example, to move downward as it goes to the depth direction. That is, each side surface 32 is formed in a trapezoidal shape in which the upper side 322 is longer than the lower side 323, for example.

When the cover 3 is attached to the base 4, the stopper 34 contacts the base 4 to support the cover 3. The stopper 34 is formed to protrude from each of the side surface 32 and the back surface 33, for example.

The base 4 supports the electronic control board 6, the connector 2, and the cover 3. The base 4 is provided on the other surface 62 side of the electronic control board 6 so as to face the cover 3. The base 4 includes, for example, a bottom surface 41, a base-side seal arrangement portion 42, a mounting bracket 43 as an example of a "mounting portion", and a screw hole 44.

The bottom surface 41 is, for example, a rectangular surface covering the lower side of the electronic control board 6. A base side seal arrangement portion 42 is provided at an outer edge portion of the bottom surface 41.

The base-side seal arrangement portion 42 is, for example, a groove formed along the outer edge of the bottom surface 41.

The seal member 5 is disposed in the base-side seal disposition portion 42.

The electronic control device 1 is mounted to other devices by means of respective mounting brackets 43. The electronic control device 1 is mounted to the vehicle, for example, via each mounting bracket 43. The mounting brackets 43 are provided at both ends of the base 4 in the x-axis direction.

The screw holes 44 are holes for mounting the electronic control board 6 to the chassis 4 with screws, for example. For example, a plurality of screw holes 44 are provided on the inner edge side of the base-side seal arrangement portion 42.

The cover 3 and the base 4 may be formed of resin such as PBT, PPS, or PA. The lid 3 and the base 4 may be formed of a metal containing aluminum, iron, or the like as a main component, for example.

The sealing member 5 suppresses intrusion of liquid or foreign matter into the interior of the electronic control device 1.

The sealing member 5 may be an adhesive made of a silicon-based, epoxy-based, or urethane-based material, for example. The sealing member 5 may be an O-ring made of a rubber material, for example.

The sealing member 5 has an adhesive function. As shown in fig. 2, the cover 3 is bonded to the connector 2. That is, one end 3111 on the near side of the planar portion 311 of the cover 3 is bonded to the planar seal arrangement portion 2111 via the seal member 51 arranged in the planar seal arrangement portion 2111. One end 3121 on the near side of each bent portion 312 is bonded to each predetermined portion 2112 via the seal member 52 disposed at each predetermined portion 2112. The inclined portion 321 is adhered to the 2 nd seal arrangement portion 212 via the seal member 53 arranged in the 2 nd seal arrangement portion 212.

The connector 2 is bonded to the base 4. That is, the protruding portion 241 of the connector 2 is bonded to the front side 421 and the both ends 422 of the base side seal arrangement portion 42 via the seal member 54 arranged in the base side seal arrangement portion 42.

The cover 3 is bonded to the base 4. That is, the lower side 323 of the side surface 32 of the lid body 3 is bonded to the sides 422 at both ends of the base-side seal arrangement portion 42 via the seal member 54.

The lower side edge of the back surface 33 of the lid body 3 is bonded to the depth side edge of the base-side seal arrangement portion 42 via the seal member 54.

Fig. 3 is an explanatory view of the seal arrangement portion 210. The planar seal arrangement portion 2111 includes a planar groove portion 21112 and a planar bank portion 21111. The sealing member 5 is disposed in the flat side groove portion 21112. The planar side bank 21111 suppresses leakage of the sealing member 5. The planar bank portion 21111 is formed by a planar groove portion 21112.

The predetermined portion 2112 includes a predetermined groove portion 21122, an end side groove portion 21123, and a predetermined bank portion 21121, the predetermined groove portion 21122 is connected to the planar side groove portion 21112, the end side groove portion 21123 is connected to the predetermined groove portion 21122 and the 2 nd seal disposition portion 212, and the predetermined bank portion 21121 is formed by the predetermined groove portion 21122 and the end side groove portion 21123.

The predetermined groove 21122 is formed in a shape going toward the electronic control board 6 side from the center side of the 1 st seal arrangement portion 211 to both end sides of the 1 st seal arrangement portion. The predetermined groove 21122 is formed in a slant shape that extends from the center of the 1 st seal arrangement portion 211 to both ends of the 1 st seal arrangement portion 211 at a predetermined angle θ 1 toward the electronic control board 6, for example.

The end side groove portion 21123 is, for example, a groove formed in the y-axis direction. The end side groove portion 21123 is located lower than the flat side groove portion 21112.

The bank 21121 is formed in an inclined surface shape as follows: going from the center side of the 1 st seal arrangement portion 211 to both ends of the 1 st seal arrangement portion 211, it goes to the electronic control substrate side at an angle θ 2. The position of one end of the predetermined bank portion 21121 at both end portions 213 of the 1 st sealing arrangement portion 211 is located downward relative to the position of the flat-side bank portion 21111.

The 2 nd sealing arrangement part 212 includes inclined banks 2121 and inclined grooves 2122. The inclined groove portion 2122 is a groove in which the seal member 5 is disposed. The inclined groove portion 2122 is continuous to the end side groove portion 21123.

The inclined bank 2121 is formed of inclined groove portions 2122. The inclined bank portion 2121 is connected to a predetermined bank portion 21121 at both end portions 213 of the 1 st sealing arrangement portion 211.

Fig. 4 is a schematic sectional view of the electronic control device shown in fig. 3 cut along the IV-IV line. The cover 3 is a flat-type seal structure in which, for example, a lower surface 3112 covers the 1 st seal arrangement portion 211. That is, the lid 3 is bonded to the planar seal disposition portion 2111 by being bonded to the seal member 5. In this case, the flat-side bank 21111 contacts the lower surface 3112 of the cover 3. The depth h1 of the planar groove portion 21112 is set to, for example, the following length: when the sealing member 5 is applied to the inside of the flat side groove portions 21112, the sealing member 5 can be suppressed from leaking out of the flat side bank portions 21111.

The lid 3 is pushed from the inside by the increase of the internal pressure of the electronic control device 1 and is deformed. At this time, the lid body 3 tries to be separated from the sealing member 5 in the upward direction. The sealing member 5 is subjected to a load by deforming one end of the lid 3 on the near side in the upward direction.

The magnitude of the load applied to the sealing member 5 varies depending on the rigidity of the lid body 3 against deformation in the upward direction. That is, the magnitude of the load applied to the seal member varies depending on the magnitude of the second moment of area of the lid body 3.

The electronic control device 1 shown above can be provided with the bent portion 312 on the cover 3 by providing the 1 st seal arrangement portion 211. The lid 3 including the bent portion 312 has increased rigidity against a force applied in an upward direction as compared with a lid formed in a planar shape. This makes the lid 3 less likely to be deformed due to the air pressure inside the electronic control device 1. As a result, stress applied to the sealing member 5 is suppressed, so that waterproof reliability is improved.

With the development of higher functions of vehicles, functions are added to the electronic control device. In the electronic control device, the number of pins of the connector and the number of electronic components increase with the addition of functions. As a result, the size of the electronic control device is increased with the increase in the functionality of the vehicle. However, as the connector is increased in size, it becomes difficult to secure a region around the connector where the seal arrangement portion is provided. Therefore, the electronic control device is required to be compact.

In order to secure a vehicle interior space, an engine room in which an electronic control device is disposed is densified by other devices. As a result, the electronic control device mounted in the engine room is also required to be downsized.

In the electronic control device 1, both end portions 213 of the 1 st seal arrangement portion 211 are located lower than the planar seal arrangement portion 2111. The upper end of the 2 nd seal disposition portion 212 is located downward with respect to the case where both end portions 213 of the 1 st seal disposition portion 211 are located on the extension line of the planar seal disposition portion 2111 in the x-axis direction. Since the inclination is started from a position closer to the base portion 4, in the 2 nd seal arrangement portion 212, the dimension in the y-axis direction is miniaturized. This allows the electronic control device 1 to be downsized because the connector 2 is downsized. By miniaturizing the connector 2, the manufacturing cost of the electronic control device 1 can be reduced.

The cover is considered to be, for example, a plug-in type seal structure in which a projection provided on the cover or one end of the cover is inserted into a seal member disposed on the connector, thereby bonding the cover to the connector. However, the depth dimension of the groove of the insertion-type seal structure is longer than the length of the inserted lid body. Thus, the depth dimension of the groove of the insertion-type seal structure is longer than that of the flat-type seal structure. Since the 1 st seal arrangement portion 211 is a flat-type seal structure, the dimension of the electronic control device 1 in the z-axis direction can be reduced compared to an insertion-type seal structure.

By having the bonding function, the sealing member 5 can bond at least two of the connector 2, the cover 3, and the base 4. This improves the ease of assembly of the electronic control device 1.

By forming the cover 3 with resin, the bent portion 312 can be easily formed. Further, the lid 3 may be formed of metal. In this case, the cover 3 radiates the air heat inside the electronic control device 1 to the outside. This can suppress an increase in the air pressure inside the electronic control device 1 by the lid 3.

Example 2

This embodiment corresponds to a modification of embodiment 1, and therefore, the present embodiment will be described mainly with respect to differences from embodiment 1. Fig. 5 is an explanatory view of the 2 nd seal arrangement portion 212 a. The 2 nd seal arrangement portion 212a is continuous with both end portions 213 of the 1 st seal arrangement portion 211 and is inclined downward as going to the depth direction.

The 2 nd sealing arrangement portion 212a includes inclined banks 2121 and inclined grooves 2122 a. The inclined groove portion 2122a is a groove in which the seal member 5 is disposed. The inclined groove portion 2122a is continuous to the end side groove portion 21123. The inclined groove portion 2122a is an insertion type seal structure in which the inclined portion 321 is inserted into the seal member 5 disposed in the inclined groove portion 2122 a.

Fig. 6 is a schematic sectional view of the 2 nd seal arrangement portion 212a shown in fig. 5 cut along the VI-VI line. The depth h2 of the inclined groove portion 2122a is formed to be longer than the depth h1 of the flat side groove portion 21112. The depth h2 of the inclined groove 2122a is longer than the insertion length of the side surface 32 of the lid 3, for example.

The sealing member 5 is disposed in the inclined groove portion 2122 a. The cap 3 is adhered to the connector 2a by inserting the inclined portion 321 of the cap 3 into the seal member 5 disposed in the inclined groove portion 2122 a. The inclined groove portion 2122a is not limited to a rectangular shape, and may have an inclined surface in the x-axis direction.

The holding force generated by the sealing member 5 is proportional to the contact area of each member and the sealing member 5. In the case of a planar seal structure, the contact area between the lid body 3 and the seal arrangement portion 210 can be increased by increasing the width of the inclined groove portion 2122a of the 2 nd seal arrangement portion 212a in the x-axis direction. However, the expansion of the 2 nd seal member 212a in the x-axis direction causes the expansion of the size of the electronic control device 1a in the x-axis direction.

The electronic control device 1a shown above can insert the inclined portion 321 into the seal member 5 arranged in the 2 nd seal arrangement portion 212a by being provided with the inclined groove portion 2122 a.

Thus, even without enlarging the 2 nd seal arrangement portion 212a in the x-axis direction, the contact area between the inclined portion 321 and the seal member 5 can be made larger than in the case of the flat-type seal structure. As a result, the electronic control device 1a can improve the holding force of the lid 3 by the sealing member 5. Since the improvement in the holding force of the lid 3 can suppress the deformation of the lid 3, the electronic control device 1a can suppress the stress generated in the planar seal arrangement portion 2111.

Example 3

This embodiment corresponds to modifications of embodiment 1 and embodiment 2, and therefore, differences from embodiment 1 and embodiment 2 will be mainly described. Fig. 7 is a perspective view of the electronic control device 1 b. The connector 2b of the electronic control device 1b is provided with a bent portion 2123. The electronic control device 1b includes, for example, an electronic control board 6, a connector 2b, a cover 3b, a base 4b, and a sealing member 5.

The connector 2b electrically connects, for example, a vehicle electric circuit to the electronic control board 6. The connector 2b includes a connector main body 21b and a plurality of terminals 23. The connector body 21b is formed of a portion formed in the x-axis direction where each terminal 23 is provided, and a portion formed in the depth direction from both ends of the portion formed in the x-axis direction. The bent portion 26 is formed at a portion formed in the depth direction. The bent portion 26 is described later in fig. 8.

The connector body 21b includes a mounting surface 24 to be mounted on the electronic control board 6 and a surface 25b on the side opposite to the mounting surface 24, for example. The surface 25b is provided with a seal arrangement portion 210b in which the seal member 5 is arranged. The seal arrangement portion 210b includes, for example, a 1 st seal arrangement portion 211 and a 2 nd seal arrangement portion 212 b. The 2 nd seal arrangement portion 212b is described later in fig. 8.

The cover 3b protects the electronic control substrate 6 from foreign substances, liquid, and the like. The cover 3b is provided on the side of the one surface 61 of the electronic control board 6, and covers the electronic control board 6 and the connector 2 b. The cover 3b includes an upper surface 31, a plurality of side surfaces 32b, and a back surface 33, the upper surface 31 being located in the upper direction of the electronic control board 6, the side surfaces 32b being provided at both ends of the upper surface 31 in the x-axis direction, and the back surface 33 being provided at the depth side of the upper surface 31.

The side surface 32b includes, for example, an inclined portion 321b formed on the front side and a plurality of bent portions 324. The inclined portion 321b is formed to go downward as going to the depth direction. The bent portion 324 is described later.

The base 4b supports the electronic control board 6, the connector 2b, and the cover 3 b. The base 4b is provided on the other surface 62 side of the electronic control board 6 so as to face the cover 3 b. The base 4b includes, for example, a bottom surface 41, a base-side seal arrangement portion 42, a mounting bracket 43, a screw hole 44, and a bent portion 45. The bent portion 45 will be described later.

Fig. 8 is an explanatory view of the 2 nd seal arrangement portion 212 b. The 2 nd seal arrangement portion 212b is continuous with both end portions 213 of the 1 st seal arrangement portion 211 and is inclined downward as going to the depth direction.

The 2 nd seal arrangement portion 212b includes a bent portion 2123 bent in the longitudinal direction of the connector main body portion 21 b. That is, the 2 nd seal disposing part 212b includes an upper inclined part 2124 continuous to both end parts 213 of the 1 st seal disposing part 211 and a lower inclined part 2125 in contact with the base side seal disposing part 42. The upper inclined portion 2124 and the lower inclined portion 2125 are connected by a bent portion 2123. The inclination direction of the upper inclined portion 2124 and the inclination direction of the lower inclined portion 2125 may be parallel to each other with a gap therebetween in the x-axis direction.

The lower inclined portion 2125 is located outward in the x-axis direction than the upper inclined portion 2124.

The outer side is a direction from the center of the 1 st seal arrangement portion 211 to both end portions 213. The lower inclined portion 2125 may be located on the center side in the x-axis direction with respect to the upper inclined portion 2124.

The 2 nd sealing arrangement portion 212b includes inclined banks 2121b and inclined grooves 2122 b. The inclined groove portion 2122b is a groove in which the seal member 5 is disposed. The inclined groove portion 2122b is continuous with the end side groove portion 21123. The inclined groove portion 2122b is bent in the x-axis direction at a bent portion 2123.

The inclined bank portions 2121b are formed by inclined groove portions 2122 b. The inclined bank portion 2121b is connected to a predetermined bank portion 21121 at both end portions 213 of the 1 st sealing arrangement portion 211. The inclined bank portion 2121b is bent in the x-axis direction at a bent portion 2123.

The bent portion 26 has a shape of a bent portion 2123 extending to the mounting surface 24 below the bent portion 2123. That is, the bent portion 26 is bent in the x-axis direction.

Returning to fig. 7, the bent portion 324 of the side surface 32b of the connector 2b is formed at a position corresponding to the bent portion 2123 of the 2 nd seal arrangement portion 212 b. That is, the curved portion 324 is shaped to be inserted into the inclined groove portion 2122b of the curved portion 2123. The bent portion 324 is formed in the upper direction of the bent portion 2123.

The bent portions 45 formed at both ends of the base 4b in the x-axis direction are formed at positions corresponding to the bent portions 2123 of the 2 nd seal arrangement portion 212 b. That is, the bent portion 324 is formed below the bent portion 26.

The bent portion 324 and the bent portion 45 are not limited to the positions corresponding to the bent portions 2123, and may be formed in the depth direction from the connector main body portion 21 b. In this case, the shapes of the bent portion 324 and the bent portion 45 correspond to each other. The bent portions 324 and 45 are not limited to being bent outward in the x-axis direction, and may be bent inward in the x-axis direction.

Fig. 9 is an explanatory view of the bent portion 2123. The bent portion 2123 is provided at the position of the 2 nd seal arrangement portion 212b on the other end side with respect to the mounting bracket 43 provided on the one end side of the electronic control board 6. The bent portion 2123 includes an outer portion 261 located outside the upper inclined portion 2124. The outer portion 261 is formed at a position spaced apart from the one end 432 on the depth side of the mounting bracket 43 by a predetermined distance d 1.

The electronic control device 1b shown above may be provided with the curved portion 324 on the side surface 32b of the lid body 3 by providing the curved portion 2123. This increases the rigidity of the lid 3 against the air pressure inside the electronic control device 1, as compared with a lid in which the bent portion 324 is not formed. This suppresses deformation of the lid 3.

The 2 nd seal disposing portion 212b forming the bent portion 2123 can be formed longer than the seal disposing portion which is not bent. Thus, the electronic control unit 1b can improve the adhesion by providing the bent portion 2123 on the 2 nd seal arrangement portion 212 b. As a result, the electronic control device 1b can improve the waterproof reliability.

By forming the bent portion 2123 in the depth direction from the mounting bracket 43, the electronic control device 1b can improve the adhesion without enlarging the dimension of the mounting bracket 43 in the outer direction.

By providing the bent portion 2123 bent outward, the electronic control device 1b can increase the internal space of the electronic control device 1b as compared with a case where the bent portion 2123 is not provided. Thus, the electronic control device 1b can be provided with a larger electronic control board. As a result, the number of electronic components provided on the electronic control board can be increased, and therefore the electronic control device 1b can cope with high functionality.

Example 4

This embodiment corresponds to modifications of embodiment 1 to embodiment 3, and therefore, differences from embodiment 1 to embodiment 3 will be mainly described. Fig. 10 is a perspective view of the electronic control device 1 c. The electronic control device 1c includes, for example, an electronic control board 6, a connector 2b, a cover 3c, a base 4b, and a sealing member 5.

The cover 3c includes an upper surface 31, a plurality of side surfaces 32c, and a back surface 33, the upper surface 31 being located in the upper direction of the electronic control board 6, the side surfaces 32c being provided at both ends of the upper surface 31 in the x-axis direction, and the back surface 33 being provided at the depth side of the upper surface 31.

The side surface 32c includes, for example, an inclined portion 321b formed on the front side, a plurality of bent portions 324, and a fixing portion 35.

The lid 3 is attached to the base 4 via a fixing portion 35. The fixing portion 35 may be, for example, a snap fit that is fitted by utilizing elasticity of a material of the lid body 3 c. The fixing portion 35 is not limited to snap-fit, and may be screw-fixed, heat-caulked, bonded, welded, or the like. The fixing portion 35 is provided in the depth direction with respect to the connector main body portion 21b, for example.

The electronic control unit 1c can mount the cover 3 to the base 4 more firmly by providing the fixing portion 35. This enables the electronic control device 1c to improve the waterproof reliability.

Example 5

This embodiment corresponds to modifications of embodiment 1 to embodiment 4, and therefore, differences from embodiment 1 to embodiment 4 will be mainly described. Fig. 11 is an explanatory view of the mounting bracket 43 d. The electronic control device 1d includes, for example, an electronic control board 6, a connector 2, a lid 3, a base 4d, and a sealing member 5.

The base 4d supports the electronic control board 6, the connector 2, and the cover 3. The base 4d is provided on the other surface 62 side of the electronic control board 6 so as to face the cover 3. The base 4d includes, for example, a bottom surface 41, a base-side seal disposition portion 42, a mounting bracket 43d, and a screw hole 44.

The electronic control device 1d is mounted to other devices by means of the mounting bracket 43 d. A plurality of mounting brackets 431d located in the forward direction are disposed on both sides of the connector 2. That is, the plurality of mounting brackets 431d located in the forward direction are respectively arranged in the predetermined regions d2 located at both ends of the chassis 4d on the outer side in the x-axis direction with respect to the connector main body 21.

The electronic control device 1d connected to the vehicle may receive vibration, impact, or the like from the vehicle. As the distance from the portion fixed by the mounting bracket 43d increases, the influence of resonance due to vibration, impact, or the like increases, and the load on the seal member 5 increases.

In the electronic control device 1d shown above, the periphery of the connector 2 is firmly fixed to the vehicle by providing the mounting bracket 43d in the predetermined region d2 of the base 4 d. Thereby, the electronic control device 1d can suppress the influence of vibration, impact, or the like from the vehicle on the connector 2. This enables the electronic control device 1d to suppress the burden on the sealing member 5. As a result, the electronic control device 1d can improve the waterproof reliability.

The electronic control device 1d can suppress deformation of the sealing member 5 around the connector 2 due to stress applied to the connector 2 when the connector 2 is fitted to the terminal of the electronic circuit of the vehicle. This enables the electronic control device 1d to suppress the burden on the sealing member 5. As a result, the electronic control device 1d can improve the waterproof reliability.

Example 6

This embodiment corresponds to a modification of embodiment 1 to embodiment 5, and therefore, the present embodiment will be described mainly with respect to differences from embodiment 1 to embodiment 5. Fig. 12 is an explanatory view of the 1 st seal arrangement portion 211 e.

The 1 st seal arrangement portion 211e includes a predetermined groove 21122e having a stepped shape.

The 1 st seal disposition portion 211 includes a plurality of predetermined portions 2112e and a planar seal disposition portion 2111.

The predetermined portions 2112e are provided at both end portions 213 of the 1 st seal arrangement portion 211e, for example. The predetermined portions 2112e are formed to go to the electronic control board 6 side as going from the center side of the 1 st seal arrangement portion 211e to both end sides of the 1 st seal arrangement portion 211 e.

The predetermined portion 2112e includes a predetermined groove portion 21122e, an end side groove portion 21123e, and a predetermined bank portion 21121e, the predetermined groove portion 21122e being connected to the planar side groove portion 21112, the end side groove portion 21123e being located at both end portions 213 of the 1 st seal disposition portion 211e and being connected to the predetermined groove portion 21122e and the 2 nd seal disposition portion 212, and the predetermined bank portion 21121e being formed of the predetermined groove portion 21122e and the end side groove portion 21123 e.

The predetermined groove portion 21122e is formed in a stepped shape extending from both ends of the flat side groove portion 21112 to the end side groove portion 21123e and to the connector main body portion 21e in the width direction. The end side groove portion 21123e is located lower than the flat side groove portion 21112. That is, the predetermined groove portion 21122e is formed so as to connect the planar side groove portion 21112 and the end side groove portion 21123 in the z-axis direction. The predetermined bank portion 21121e is formed, for example, in the x-axis direction, and is continuous with the planar bank portion 21111.

Fig. 13 is a schematic sectional view of the seal arrangement portion 210e shown in fig. 12 cut by XIII-XIII lines. A cover body 3e that protects the electronic control substrate 6 from foreign matter, liquid, or the like is bonded to the connector 2e via a seal member 5.

The cover 3e is provided on the side of the one surface 61 of the electronic control board 6, and covers the electronic control board 6 and the connector 2 e. The cover 3e includes an upper surface 31e, a plurality of side surfaces 32, and a back surface 33, the upper surface 31e being located in the upper direction of the electronic control board 6, the side surfaces 32 being provided at both ends of the upper surface 31e in the x-axis direction, and the back surface 33 being provided at the depth side of the upper surface 31 e.

The upper surface 31e includes a flat portion 311 and bent portions 312e provided at both ends of the flat portion 311 in the x-axis direction. The bent portion 312e is formed, for example, downward from both ends of the planar portion 311. The bent portion 312e is inserted into the sealing member 5 disposed in the end side groove portion 21123 e.

Further, the depth h3 of the end side groove portion 21123e may be longer than the depth h1 of the planar side groove portion 21112. The depth h3 of the end side groove portion 21123e is set to a length into which the end of the folded portion 312e is inserted, for example.

The 1 st seal disposition portion 211e shown above can make the depth dimension h3 of the end side groove portion 21123e longer than the depth dimension h1 of the flat side groove portion 21112 by providing the prescribed groove portion 21122 e. Thereby, the insertion sealing structure of the sealing member 5 arranged by inserting the bent portion 312e of the lid body 3 into the end side groove portion 21123e can be formed.

The contact area of the seal member 5 with the bent portion 312 is larger than that in the case of the flat-type seal structure. This defines the groove portion 21122e, thereby improving the holding force of the lid 3 e.

The 1 st seal arrangement portion 211e shown above enables the lid portion 3e to be provided with the bent portion 312e by being provided with the prescribed groove portion 21122e in a stepped shape. By providing the bent portion 312e, the lid 3e is less likely to be deformed in the peeling direction than in the case where the flat shape of the bent portion 312e is not provided. This can suppress stress on the sealing member 5 by the lid 3 e.

Example 7

This embodiment corresponds to modifications of embodiment 1 to embodiment 6, and therefore, differences from embodiment 1 to embodiment 6 will be mainly described. Fig. 14 is an explanatory view of the 1 st seal arrangement portion 211 f.

The 1 st seal arrangement portion 211f has arc-shaped predetermined portions 2112f at both ends.

The 1 st seal disposition portion 211f includes a plurality of predetermined portions 2112f and a planar seal disposition portion 2111.

The predetermined portions 2112f are provided at both end portions 213 of the 1 st seal arrangement portion 211f, for example. The predetermined portions 2112f are formed to go to the electronic control board 6 side from the center side of the 1 st seal arrangement portion 211f to the both end sides of the 1 st seal arrangement portion 211 f.

The predetermined portion 2112f includes a predetermined groove portion 21122f, an end side groove portion 21123f and a predetermined bank portion 21121f, the predetermined groove portion 21122f is connected to the plane side groove portion 21112, the end side groove portion 21123f is located at both end portions 213 of the 1 st seal disposition portion 211f and is connected to the predetermined groove portion 21122f and the 2 nd seal disposition portion 212, and the predetermined bank portion 21121f is formed by the predetermined groove portion 21122 and the end side groove portion 21123.

The predetermined groove portion 21122f is formed in a shape going to the electronic control board 6 side from the center side of the 1 st seal arrangement portion 211f to both end sides of the 1 st seal arrangement portion 211 f.

The groove portion 21122f is defined, for example, in an arc shape as follows: the slope of the tangent to the predetermined groove portion 21122f in the x-axis direction gradually changes from one end of the predetermined groove portion 21122f on the center side of the 1 st seal disposition portion 211f to the other end of the predetermined groove portion 21122f on both end sides of the 1 st seal disposition portion 211 f. The end side groove portion 21123 is located lower than the flat side groove portion 21112.

The bank 21121f is defined as follows: the slope of the tangent to the predetermined bank portion 21121f in the x-axis direction gradually changes from one end of the predetermined bank portion 21121f on the center side of the 1 st sealing arrangement portion 211f to the other end of the predetermined bank portion 21121f on both ends of the 1 st sealing arrangement portion 211 f.

Fig. 15 is a schematic sectional view of the 1 st seal arrangement portion 211f shown in fig. 14 cut along an XV-XV line. A cover 3f that protects the electronic control substrate 6 from foreign matter, liquid, or the like is bonded to the connector 2f via a sealing member 5.

The cover 3f is provided on the side of the one surface 61 of the electronic control board 6, and covers the electronic control board 6 and the connector 2 f. The cover 3f includes an upper surface 31f, a plurality of side surfaces 32, and a back surface 33, the upper surface 31f being located in the upper direction of the electronic control board 6, the side surfaces 32 being provided at both ends of the upper surface 31f in the x-axis direction, and the back surface 33 being provided on the deeper side of the upper surface 31 f.

The upper surface 31f includes a flat portion 311 and bent portions 312f provided at both ends of the flat portion 311 in the x-axis direction. The bent portion 312f has an arc shape as follows: the slope of the tangent to the bent portion 312f on the flat surface portion 311 side gradually changes as going to the other end of the bent portion 312f at both ends of the lid 3 f. Both end portions of the cover 3f contact both end portions 213 of the 1 st seal arrangement portion 211 f.

The 1 st seal arrangement portion 211f shown above allows the seal member 5 to move gently from the planar side groove portion 21112 to the end side groove portion 21123f by providing the groove portion 21122f in an arc shape. This allows the sealing member 5 to be applied to the 1 st sealing arrangement portion 211f, thereby improving the assembling property.

Example 8

This embodiment corresponds to modifications of embodiment 1 to embodiment 8, and therefore, differences from embodiment 1 to embodiment 8 will be mainly described. Fig. 16 is an explanatory view of the 1 st seal arrangement portion 211 g.

The 1 st seal disposition portion 211g includes a plurality of predetermined portions 2112g and a planar seal disposition portion 2111.

The predetermined portions 2112g are provided at both end portions 213 of the 1 st seal arrangement portion 211g, for example. The predetermined portions 2112g are formed to go to the electronic control board 6 side as going from the center side of the 1 st seal arrangement portion 211g to both end sides of the 1 st seal arrangement portion 211 g.

The predetermined portion 2112g includes a predetermined groove portion 21122g, end side groove portions which are located at both ends 213 of the 1 st seal arrangement portion 211g and are connected to the predetermined groove portion 21122g and the 2 nd seal arrangement portion 212, and a predetermined bank portion 21121g which is formed of the predetermined groove portion 21122g and the end side groove portion 21123.

The predetermined groove portion 21122g is a combination of at least two of an inclined predetermined groove portion 21122, a stepped predetermined groove portion 21122e, and an arc-shaped groove portion 21122 f. The predetermined groove 21122g is formed by a combination of a predetermined groove 21122 having an inclined surface shape and a predetermined groove 21122e having a stepped shape, for example.

That is, the predetermined groove portion 21122g includes a plurality of predetermined groove portions 21122 each having an inclined surface at each end of the flat side groove portion 21112. The predetermined groove 21122g has a stepped groove 21122e at one end of each predetermined groove 21122 having an inclined surface shape on both end sides of the 1 st seal arrangement portion 211g, for example.

The end side groove portion of the 1 st seal arrangement portion 211g is, for example, an end side groove portion 21123 e. The end side groove portion of the 1 st seal arrangement portion 211g is not limited to the end side groove portion 21123e, and may be the end side groove portion 21123, the end side groove portion 21123f, or the like.

The predetermined bank 21121g is at least one of a predetermined bank 21121 having an inclined surface shape and a predetermined bank 21121f having an arc shape. The predetermined bank 21121g is, for example, a predetermined bank 21121 having an inclined surface shape.

Fig. 17 is a schematic sectional view obtained by wire-cutting the seal arrangement portion 210f shown in fig. 16 from XVII to XVII. A cover 3g that protects the electronic control substrate 6 from foreign matter, liquid, or the like is bonded to the connector 2g via a sealing member 5.

The cover 3g is provided on the side of the one surface 61 of the electronic control board 6, and covers the electronic control board 6 and the connector 2 g. The cover 3g includes an upper surface 31g, a plurality of side surfaces 32, and a back surface 33, the upper surface 31g being located in the upper direction of the electronic control board 6, the side surfaces 32 being provided at both ends of the upper surface 31g in the x-axis direction, and the back surface 33 being provided on the depth side of the upper surface 31 g.

The upper surface 31g includes a flat portion 311 and bent portions 312g provided at both ends of the flat portion 311 in the x-axis direction. The bent portion 312g is a combination of at least two of the inclined-surface-shaped bent portion 312, the step-shaped bent portion 312e, and the arc-shaped bent portion 312 f.

The bent portion 312g is formed by a combination of a slant-shaped bent portion 312 and a step-shaped bent portion 312e, for example.

The 1 st seal disposition portion 211g shown above can be provided with the bent portion 312 and the bent portion 312e on the lid body 3g by providing the inclined predetermined groove portion 21122 and the stepped predetermined groove portion 21122 e. By providing the bent portion 312 and the bent portion 312e, the lid 3g can have increased rigidity against a force in a direction of separating the lid 3g from the connector 2 g. This can suppress the load on the sealing member 5 by the lid 3 g.

The present invention includes various modifications, and is not limited to the above embodiments. The above embodiments are described in detail to explain the present invention in an easily understandable manner, and are not necessarily limited to all the configurations described above. Further, a part of the configuration of one embodiment may be replaced with the configuration of another embodiment. Further, the structure of another embodiment may be added to the structure of one embodiment. Further, other configurations may be added, deleted, and replaced to a part of the configurations of the embodiments.

Description of the symbols

1 … electronic control device, 2 … connector, 3 … cover, 4 … base, 5 … sealing member, 6 … electronic board, 21 … connector body, 210 … sealing arrangement, 211 … 1 st sealing arrangement, 2112 … predetermined portion, 212 … nd 2 nd sealing arrangement, 213 … both ends, 23 … terminal, 231 … resin portion, 24 … mounting surface, 241 … projection, 25 … opposing surface, 31 … upper surface, 311 … flat surface portion, 3111 … end, 312 … bent portion, 3121 … end, 32 … side surface, 321 … inclined portion, side edge on … upper side, side edge on 323 … lower side, 33 … back surface, 34 … stopper, 41 … bottom surface, 42 … base side sealing arrangement portion, 421 … front surface side, 36422 side surface side, 423 … back surface, 43 … mounting bracket, … screw hole, … mounting bracket, …, 36611 through hole 611.