阅读说明：本技术 电气设备用箱体以及电气设备装置 (Box for electrical equipment and electrical equipment device ) 是由 内芝宏文 于 2020-04-01 设计创作，主要内容包括：本发明提供一种电气设备用箱体(2)以及电气设备装置(1),所述电气设备用箱体(2)容纳电气设备(3),包括：箱体主体(10),包括环状的箱体侧密封面(18)；罩体(20),包括弯曲罩部(24、25)；防水框架(30),包括环状的罩侧密封面(38),并设置于罩体(20)；密封构件(40),设置于箱体侧密封面(18)与罩侧密封面(38)之间。(The present invention provides a box (2) for electrical equipment and an electrical equipment device (1), wherein the box (2) for electrical equipment contains electrical equipment (3), and the electrical equipment device comprises the following components: a case body (10) including an annular case-side sealing surface (18); a cover body (20) including curved cover portions (24, 25); a waterproof frame (30) that includes an annular cover-side sealing surface (38) and is provided to the cover body (20); and a seal member (40) provided between the case side seal surface (18) and the cover side seal surface (38).)

1. A case for an electrical appliance, which accommodates the electrical appliance,

the method comprises the following steps:

a case main body having an opening and including an annular case-side sealing surface formed on the same plane and surrounding the opening;

a cover body including a rectangular flat-plate-shaped cover portion and a curved cover portion connected to one side of the flat-plate-shaped cover portion, the cover body being mounted on the box body and covering the opening;

a waterproof frame including an annular cover-side sealing surface that is formed on the same plane and faces the case-side sealing surface, the waterproof frame being provided on the cover body and being disposed inside the flat-plate-shaped cover portion and the curved cover portion; and

and a seal member provided between the case side seal surface and the cover side seal surface and sealing between the case side seal surface and the cover side seal surface.

2. The box for electric equipment according to claim 1,

the waterproof frame is configured in a box shape having a partition wall portion that extends in parallel with the one side of the flat plate-shaped cover portion and that extends obliquely from the flat plate-shaped cover portion toward the case body side sealing surface toward the curved cover portion side, and a communication portion is formed between the partition wall portion and the curved cover portion.

3. The box for electric equipment according to claim 1 or 2,

the case body is formed in a box shape, including:

a first wall;

a second wall connected to a first edge of the first wall;

a third wall opposite the second wall and connected to the second edge of the first wall;

a fourth wall connected to a third edge of the first wall, the second wall, and the third wall; and

a fifth wall opposite to the fourth wall and connected to the fourth side of the first wall, the second wall, and the third wall,

the cover body has a U-shaped cross section and comprises:

the flat plate-shaped cover portion;

a first side cover covering the second wall;

a second side cover portion covering the third wall;

the first bent cover part is connected with the flat-plate cover part and the first side cover part; and

a second curved cover portion connected to the flat-shaped cover portion and the second side cover portion.

4. The case for electric equipment according to any one of claims 1 to 3,

the cover-side sealing surface is disposed farther from the flat plate-shaped cover portion than the curved cover portion.

5. The case for electric equipment according to any one of claims 1 to 4,

the case body is provided with a groove member that protrudes from the opening toward the outside of the case body and is disposed below a portion of the cover-side sealing surface that extends along the other side orthogonal to the one side of the flat plate-shaped cover portion.

6. The case for electric equipment according to any one of claims 1 to 5,

the communication portion is a drain passage extending in the up-down direction.

7. An electrical apparatus device, characterized in that,

an electrical apparatus comprising the box for electrical apparatus of any one of claims 1 to 6 and an electrical apparatus accommodated in the box for electrical apparatus.

Technical Field

The present invention relates to a box for electrical equipment and an electrical equipment device.

Background

For example, an electrical apparatus such as a battery device in which an electrical apparatus such as a battery including a battery main body and a control circuit for controlling the operation of the battery main body is housed in a case is becoming widespread mainly for home use. Since such an electrical equipment device is mostly installed outdoors, a box for housing electrical equipment needs to have high waterproof property.

For example, patent document 1 discloses a structure in which waterproofness is improved by providing a front cover integrally with a front cover front surface covering an opening of a main body and a front cover top surface covering a top surface of the main body in a case including the main body having the opening and the front cover covering the opening of the main body, and forming a double structure in which the front cover top surface and the top surface of the main body are overlapped on each other on an upper side of the case.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2018-60828

Disclosure of Invention

An electrical equipment box according to an embodiment of the present invention is a box for housing electrical equipment, including: a case main body having an opening and including an annular case-side sealing surface formed on the same plane and surrounding the opening; a cover body including a rectangular flat-plate-shaped cover portion and a curved cover portion connected to one side of the flat-plate-shaped cover portion, the cover body being mounted on the box body and covering the opening; a waterproof frame including an annular cover-side sealing surface that is formed on the same plane and faces the case-side sealing surface, the waterproof frame being provided on the cover body and being disposed inside the flat-plate-shaped cover portion and the curved cover portion; and a seal member provided between the case side seal surface and the cover side seal surface and sealing between the case side seal surface and the cover side seal surface.

An electrical equipment device according to an embodiment of the present invention includes any one of the electrical equipment cases according to the present invention and an electrical equipment housed in the electrical equipment case.

Drawings

Fig. 1 is a perspective view of an electrical device according to an embodiment of the present invention.

Fig. 2 is a perspective view of the electrical equipment device shown in fig. 1 in a state where the cover is removed from the box main body.

Fig. 3 is a perspective view of the case body shown in fig. 2.

Fig. 4 is a perspective view of the cover shown in fig. 2.

Fig. 5 is a perspective view showing the waterproof frame in a state of being attached to the cover body.

Fig. 6 is a transverse cross-sectional view of the cover shown in fig. 4.

Fig. 7 is a transverse sectional view of the electrical equipment device shown in fig. 1.

Fig. 8 is a longitudinal sectional view of the electrical equipment device shown in fig. 1.

Fig. 9 is an explanatory view schematically showing the structure of the seal member.

Fig. 10A is a diagram schematically showing a cross section of an electrical apparatus device of a comparative example.

Fig. 10B is a diagram schematically showing a cross section of the electrical equipment device of the present embodiment.

Detailed Description

Conventionally, a housing of an electrical equipment device requires not only the above-described functionality such as waterproofing but also high design (aesthetic appearance).

The invention aims to provide a box body for electrical equipment and an electrical equipment device, wherein the box body can ensure functionality and improve design.

According to the embodiments of the present invention, it is possible to provide a box for an electrical device and an electrical device apparatus in which the functionality can be ensured and the design can be improved.

Hereinafter, one embodiment of the present invention will be described in detail by way of example with reference to the accompanying drawings.

As shown in fig. 1, an electrical equipment device 1 according to the present embodiment includes an electrical equipment box 2 and an electrical equipment 3 accommodated in the electrical equipment box 2.

In the present embodiment, the electrical equipment device 1 is configured as a household battery device. The electrical device 3 schematically shown in fig. 1 is a battery. The battery includes, for example, a battery main body and a control circuit that controls an operation of the battery main body. As the battery main body, for example, a lithium ion battery or a nickel hydride battery can be used. The electrical equipment device 1 configured as a battery device can be used, for example, for an application in which it is connected to a solar cell installed on a roof of a house or the like to store electric power generated by the solar cell.

The electrical equipment apparatus 1 may be configured to accommodate, in addition to the electrical equipment 3, a plurality of types of electrical equipment having different functions or structures, such as a power converter, a fuel cell, and a ventilation fan, in the electrical equipment case 2. The electrical equipment device 1 may be configured such that a member such as a heat insulator or a cushion material is accommodated in the electrical equipment box 2 in addition to the electrical equipment 3.

The electric device 3 housed in the electric device casing 2 is not limited to the battery described above, and may be an electric device having another function or configuration, such as a fuel cell, a power conversion device, a power transformation device, or a device having a function of supplying electric power to a commercial power system.

The electrical equipment device 1 may be disposed outdoors. In the present embodiment, the electrical equipment device 1 is installed on an outer wall of a house using, for example, a fixture, a bracket, or the like.

The electrical equipment device 1 is not limited to being installed outdoors, and may be installed indoors or in other places.

As shown in fig. 2, the electrical equipment box 2 that houses the electrical equipment 3 includes a box body 10, a cover 20, a waterproof frame 30, and a sealing member 40.

As shown in fig. 3, the box body 10 is box-shaped having a first wall 11, a second wall 12, a third wall 13, a fourth wall 14, and a fifth wall 15. In the present embodiment, the box body 10 is formed by processing a single metal plate made of metal such as steel, aluminum alloy, and stainless steel. With this configuration, the case body 10 having the above-described shape can be manufactured at low cost.

The case body 10 is not limited to the structure made of the metal plate, and may be made by using other materials or manufacturing methods, and may be, for example, a casting made of metal such as aluminum alloy, or an injection molded product made of a synthetic resin material. The case body 10 may be configured such that the first wall 11, the second wall 12, the third wall 13, the fourth wall 14, and the fifth wall 15, which are separately formed, are integrally connected by means of welding, bonding, fastening, or the like.

The first wall 11 has a first side 11a and a second side 11b parallel to each other, and a third side 11c and a fourth side 11d orthogonal to the first side 11a and the second side 11b, respectively, and parallel to each other. The first wall 11 is provided with a rectangular notch 11e recessed from the second side 11b toward the first side 11a along the fourth side 11 d. In this way, the first wall 11 has four sides 11a to 11d and is formed in a plate shape having a substantially rectangular outer shape with a part cut by the notch 11 e. In the present embodiment, the first wall 11 is configured as a rear surface of the casing main body 10.

The second wall 12 is formed in a rectangular plate shape elongated more than the first wall 11, and is connected at right angles to the first side 11a of the first wall 11.

The third wall 13 is formed in an elongated rectangular plate shape similar to the second wall 12, is connected to the second side 11b of the first wall 11 at right angles, and faces the second wall 12. The third wall 13 is provided with a rectangular cutout portion 13a recessed from the second side 11b in a direction away from the first wall 11.

In the present embodiment, the second wall 12 and the third wall 13 are opposed to each other in parallel, and constitute side surfaces facing the side of the box body 10.

The fourth wall 14 is formed in a plate shape elongated more than the first wall 11, and is connected at right angles to the third side 11c of the first wall 11 and to the upper sides of the second wall 12 and the third wall 13, which are the upper sides in fig. 3. In the present embodiment, the fourth wall 14 is configured as an upward facing top surface of the casing body 10.

A protruding wall 16 is integrally provided on the fourth wall 14, and the protruding wall 16 protrudes in a direction away from the first wall 11 with respect to the second wall 12 and the third wall 13. The projecting wall 16 has an end face 16a parallel to the surface of the first wall 11, and side end faces on both sides are formed in a shape curved with a predetermined curvature.

The fifth wall 15 is formed in an elongated plate shape like the fourth wall 14, is connected at right angles to the fourth side 11d of the first wall 11, is connected at right angles to the lower edges of the second wall 12 and the third wall 13, which are the lower sides in fig. 3, and is opposed to the fourth wall 14. In the present embodiment, the fifth wall 15 is configured as a bottom surface of the box body 10 facing downward.

The notch 11e and the notch 13a provided in the casing body 10 are closed by the cover wall 17 from the inside of the casing body 10.

The inside of the box body 10 is formed as a housing space 10a housing the electric device 3. The side of casing body 10 facing first wall 11 is an opening 10b, and when cover 20 is removed from casing body 10 to connect opening 10b to the outside, electric device 3 can be placed in housing space 10a through opening 10 b.

The case body 10 includes an annular case-side sealing surface 18, and the case-side sealing surface 18 is formed on the same plane parallel to the first wall 11 and surrounds the opening 10 b.

More specifically, the case-side seal surface 18 includes: a first case side sealing surface 18a which is a surface facing outward parallel to the first wall 11 of a flange-like portion formed by bending a side portion of the second wall 12 on the opening 10b side inward at a right angle; a second case side sealing surface 18b configured as an outward facing surface parallel to the first wall 11 of a flange-shaped portion formed by bending a side portion of the third wall 13 on the opening 10b side inward at a right angle; a third case side sealing surface 18c configured as an outward surface parallel to the first wall 11 of the frame member 19 fixed to the lower surface of the projecting wall 16 facing the fifth wall 15; and a fourth case side sealing surface 18d which is a surface facing outward parallel to the first wall 11 and is formed by bending a side portion of the fifth wall 15 on the opening 10b side outward at a right angle. One end of the third case side seal surface 18c is connected to one end of the first case side seal surface 18a, the other end of the third case side seal surface 18c is connected to one end of the second case side seal surface 18b, one end of the fourth case side seal surface 18d is connected to the other end of the second case side seal surface 18b, and the other end of the fourth case side seal surface 18d is connected to the other end of the first case side seal surface 18 a. In this way, the case main body 10 is provided with the annular case side seal surface 18 in which the first case side seal surface 18a, the second case side seal surface 18b, the third case side seal surface 18c, and the fourth case side seal surface 18d are connected in an annular shape so as to surround the opening 10 b.

As shown in fig. 4, cover 20 as an exterior panel includes: a flat plate-like cover portion 21; a first side cover portion 22 covering the second wall 12 from the outside; a second side cover part 23 covering the third wall 13 from the outside; a first curved cover portion 24 connected to the flat-plate-shaped cover portion 21 and the first side cover portion 22; the second curved cover portion 25 is connected to the flat plate-shaped cover portion 21 and the second side cover portion 23, and the cover 20 is formed in a U-shape (Contraband-shape) in cross section. The thickness of the cover body 20 may be set arbitrarily, and is preferably set to 0.3mm to 3.5mm, for example.

The cover 20 can be formed by bending a single metal plate made of metal such as steel, aluminum alloy, and stainless steel. With this configuration, cover 20 having the above-described shape can be easily and inexpensively manufactured by simple bending.

The cover body 20 is not limited to the case where the flat plate-shaped cover portion 21, the first side cover portion 22, the second side cover portion 23, the first bent cover portion 24, and the second bent cover portion 25 are integrally formed by bending a single metal plate, and may be configured such that the flat plate-shaped cover portion 21, the first side cover portion 22, the second side cover portion 23, the first bent cover portion 24, and the second bent cover portion 25, which are separately formed, are integrally connected to each other by means of welding, bonding, fastening, or the like. Cover 20 is not limited to being made of metal, and may be made of other materials, such as an injection molded article made of a synthetic resin material.

The flat plate-like cover portion 21 has a first side 21a and a second side 21b parallel to the first side 11a of the first wall 11 of the box body 10. The flat plate-like cover portion 21 has a third side 21c and a fourth side 21d parallel to the third side 11c of the first wall 11. Thus, the flat plate-like cover portion 21 has a rectangular outer shape having four sides 21a to 21 d.

The first curved cover portion 24 is integrally connected to the first side 21a of the flat plate-shaped cover portion 21. The first curved cover portion 24 is curved from the first side 21a toward the first wall 11 side so as to form an arc shape having a center angle of 90 degrees with an axis parallel to the first side 21a as a center axis.

Second curved cover portion 25 is integrally connected to second side 21b of flat plate-shaped cover portion 21. Second curved cover portion 25 is curved from second side 21b toward first wall 11 so as to form an arc having a central angle of 90 degrees with an axis parallel to second side 21b as a central axis.

The radii of the first curved cover portion 24 and the second curved cover portion 25 curved in an arc shape are substantially the same as the curvature of the curved side end surfaces of the projecting wall 16.

The first side cover portion 22 is formed in a rectangular plate shape parallel to the second wall 12, and is integrally connected to a first curved cover portion 24.

Second side cover portion 23 is formed in a rectangular plate shape parallel to third wall 13, and is integrally connected to second curved cover portion 25.

Two mounting holes 26 are provided in the first side cover portion 22 and the second side cover portion 23, respectively (only one of the mounting holes 26 of the first side cover portion 22 is shown). On the other hand, as shown in fig. 3, two screw holes 50 are opened in the second wall 12 and the third wall 13 of the casing body 10 at positions offset toward the first wall 11, respectively, toward the fourth wall 14 and toward the fifth wall 15.

As shown in fig. 1, cover 20 is attached to casing body 10 by screwing a screw member 51 inserted through attachment hole 26 of cover 20 into a corresponding screw hole 50 of casing body 10. The cover 20 attached to the casing main body 10 covers the opening 10b of the casing main body 10. Further, as the screw member 51, for example, a head screw having a rod-shaped portion with an outer diameter smaller than a bottom diameter of a thread at a tip thereof can be used.

As shown in fig. 5 and 6, the waterproof frame 30 is provided on the cover body 20 and is disposed inside the flat plate-shaped cover portion 21 and the pair of curved cover portions (the first curved cover portion 24 and the second curved cover portion 25).

More specifically, the waterproof frame 30 includes: a fixing wall portion 31 formed in a rectangular plate shape that is the same as or smaller than the flat plate-shaped cover portion 21; a first partition wall portion 32 connected to a side portion of the fixing wall portion 31 on the first curved cover portion 24 side; a second partition wall 33 connected to a side portion of the fixing wall 31 on the second curved cover portion 25 side; a third partition wall 34 connected to the side portion of the fixing wall 31 on the third side 21c side, the first partition wall 32, and the second partition wall 33; and a fourth partition wall 35 connected to a side portion of the fixing wall 31 on the fourth side 21d side, the first partition wall 32, and the second partition wall 33, wherein a portion of the waterproof frame 30 facing the fixing wall 31 is formed in a box shape having an opening 30 a. In a state where cover 20 is attached to casing body 10, opening 30a of waterproof frame 30 is continuous with opening 10b of casing body 10, and the internal space of waterproof frame 30 communicates with accommodating space 10a of casing body 10 to constitute the internal space of electrical equipment casing 2 together with accommodating space 10 a.

The fixing wall 31 is fixed to the flat plate-shaped cover portion 21 by means of spot welding, adhesion, or the like, for example, and thereby the waterproof frame 30 is integrally provided to the cover body 20. The waterproof frame 30 is sealed airtight or liquid-tight except for the opening 30 a.

The waterproof frame 30 may be configured such that the first partition wall portion 32, the second partition wall portion 33, the third partition wall portion 34, and the fourth partition wall portion 35 are directly fixed to the flat plate-like cover portion 21 by welding or the like, and do not include the fixing wall portion 31. In this case, the open end on the opposite side of the opening 30a of the annular frame portion constituted by the first partition wall portion 32, the second partition wall portion 33, the third partition wall portion 34, and the fourth partition wall portion 35 is sealed airtight or liquid-tight by the flat plate-like cover portion 21.

More specifically describing each part of the waterproof frame 30, the first partition wall portion 32 is formed in an elongated flat plate shape extending in parallel to the first side 21a of the flat plate-shaped cover portion 21, and extends from the flat plate-shaped cover portion 21 toward the case body side sealing surface 18 side (the side away from the flat plate-shaped cover portion 21) obliquely toward the first curved cover portion 24 side with respect to the direction perpendicular to the flat plate-shaped cover portion 21. The side portion of the first partition wall portion 32 opposite to the side portion connected to the flat plate-shaped cover portion 21 is in contact with the first side cover portion 22, and a first support wall 36 integrally connected to the side portion is fixed to the first side cover portion 22 by means of spot welding, adhesion, or the like. A first communicating portion 60 is formed between the first partition wall portion 32 and the first curved cover portion 24, and the first communicating portion 60 is configured to extend in a direction along the first side 21a of the flat plate-shaped cover portion 21 to form a space open to the third partition wall portion 34 side and the fourth partition wall portion 35 side.

Similarly, second partition wall 33 is formed in an elongated flat plate shape extending in parallel to second side 21b of flat plate-shaped cover portion 21, and extends from flat plate-shaped cover portion 21 toward case-body-side sealing surface 18 side (side away from flat plate-shaped cover portion 21) obliquely toward second curved cover portion 25 side with respect to the direction perpendicular to flat plate-shaped cover portion 21. The side portion of the second partition wall portion 33 opposite to the side portion connected to the flat plate-shaped cover portion 21 is in contact with the second side cover portion 23, and a second support wall 37 integrally connected to the side portion is fixed to the second side cover portion 23 by means of spot welding, adhesion, or the like. A second communication portion 61 is formed between the second partition wall portion 33 and the second curved cover portion 25, and the second communication portion 61 extends in a direction along the second side 21b of the flat plate-shaped cover portion 21 and is configured as a space that opens toward the third partition wall portion 34 side and the fourth partition wall portion 35 side.

The third partition wall 34 is formed in an elongated flat trapezoidal shape extending parallel to the third side 21c of the flat plate-like cover portion 21, and extends obliquely from the flat plate-like cover portion 21 toward the case-body-side sealing surface 18 side (the side away from the flat plate-like cover portion 21) and in the direction away from the fourth partition wall 35. Both side portions of the third partition wall 34 are connected to the first partition wall 32 and the second partition wall 33, respectively.

The fourth partition wall portion 35 is formed in an elongated flat trapezoidal shape extending parallel to the fourth side 21d of the flat plate-like cover portion 21, and extends perpendicularly to the fixing wall portion 31 from the flat plate-like cover portion 21 toward the case-body-side sealing surface 18 side (the side away from the flat plate-like cover portion 21). Both side portions of the fourth partition wall 35 are connected to the first partition wall 32 and the second partition wall 33, respectively.

The waterproof frame 30 includes an annular cover-side sealing surface 38 formed on the same plane parallel to the flat plate-shaped cover portion 21 and surrounding the opening 30 a. As shown in fig. 7 and 8, in a state where cover 20 is attached to casing body 10, cover-side sealing surface 38 faces casing-side sealing surface 18. At this time, the cover-side sealing surface 38 and the case-side sealing surface 18 are parallel to each other.

More specifically, the shroud-side seal surface 38 includes: a first cover-side sealing surface 38a which is a surface facing outward, parallel to the flat plate-shaped cover portion 21, of a flange-shaped portion formed by bending a side portion of the first support wall 36 inward; a second cover-side sealing surface 38b which is a surface facing outward, parallel to the flat plate-shaped cover portion 21, of a flange-shaped portion formed by bending a side portion of the second support wall 37 inward; a third cover-side sealing surface 38c which is a surface facing outward, parallel to the flat plate-shaped cover portion 21, of a flange-shaped portion formed by bending the side portion of the third partition wall portion 34 on the opening 30a side inward; and a fourth cover side sealing surface 38d which is a surface facing outward in parallel with the flat plate-like cover portion 21 of a flange-like portion formed by bending the side portion of the fourth partition wall portion 35 on the opening 30a side inward. One end of the third cover side seal surface 38c is connected to one end of the first cover side seal surface 38a, one end of the second cover side seal surface 38b is connected to the other end of the third cover side seal surface 38c, one end of the fourth cover side seal surface 38d is connected to the other end of the second cover side seal surface 38b, and the other end of the first cover side seal surface 38a is connected to the other end of the fourth cover side seal surface 38 d. In this way, the waterproof frame 30 is provided with the annular cover side seal surface 38 that is annularly continuous with the first cover side seal surface 38a, the second cover side seal surface 38b, the third cover side seal surface 38c, and the fourth cover side seal surface 38d so as to surround the opening 30a and is opposed to the case side seal surface 18.

In the present embodiment, cover-side sealing surface 38 is disposed farther from flat plate-shaped cover portion 21 than the pair of curved cover portions (first curved cover portion 24 and second curved cover portion 25). That is, cover-side sealing surface 38 is disposed at a position farther from flat-plate-shaped cover portion 21 than the side portion of first curved cover portion 24 connected to first side cover portion 22 and the side portion of second curved cover portion 25 connected to second side cover portion 23 in the direction perpendicular to flat-plate-shaped cover portion 21. Thus, the first cover-side sealing surface 38a is disposed adjacent to the first side cover portion 22, and the second cover-side sealing surface 38b is disposed adjacent to the second side cover portion 23.

The waterproof frame 30 having the above-described structure can be formed by processing a single metal plate made of metal such as steel, aluminum alloy, stainless steel, or the like. With such a configuration, the waterproof frame 30 having the above-described shape can be manufactured easily and inexpensively.

As shown in fig. 9, the seal member 40 is formed in an annular shape corresponding to the case-side seal surface 18 and the cover-side seal surface 38. As shown in fig. 7 and 8, in a state where cover 20 is attached to casing body 10, seal member 40 is disposed between casing side seal surface 18 and cover side seal surface 38 in a state of being elastically deformed at a predetermined rate in the compression direction. The seal member 40 is in contact with the annular case side seal surface 18 and the annular cover side seal surface 38 over the entire circumference to seal between the case side seal surface 18 and the cover side seal surface 38 so that water such as rainwater does not enter. That is, the seal member 40 is provided between the case side seal surface 18 and the cover side seal surface 38 and seals between the case side seal surface 18 and the cover side seal surface 38, and has a waterproof function.

By providing sealing member 40 between case side sealing surface 18 of case body 10 and cover side sealing surface 38 of waterproof frame 30 provided to cover 20 in this manner, water such as rainwater can be prevented from entering housing space 10a inside case body 10 from between case body 10 and cover 20 or waterproof frame 30.

The sealing member 40 may be formed of an elastomer such as synthetic rubber or an elastic material (elastomer). The sealing member 40 may be formed of rubber sponge, which is an ethylene propylene rubber foam. The sealing member 40 may be of a structure or material other than the above.

As shown in fig. 9, in the present embodiment, the seal member 40 is formed as a single annular member by combining four members, i.e., a first seal portion 41, a second seal portion 42, a third seal portion 43, and a fourth seal portion 44.

The first seal portion 41 is mainly disposed between the first case side seal surface 18a and the first cover side seal surface 38a opposed thereto, and includes a main body portion 41a extending along the first case side seal surface 18a and the first cover side seal surface 38a, and a sub-body portion 41c connected to one end of the main body portion 41a via a stepped portion 41 b. The sub-body 41c is offset from the main body 41a toward the inside of the casing body 10 by an amount corresponding to the width of the main body 41 a. The first seal portion 41 has a protrusion 41d protruding inward from a side portion of the body portion 41a on the other end side of the body portion 41 a. The protrusion 41d is offset from the other end of the body 41a by an amount corresponding to the width of the fourth seal portion 44.

The second seal portion 42 is formed in a shape symmetrical to the first seal portion 41. The second seal portion 42 is mainly disposed between the second case side seal surface 18b and the second cover side seal surface 38b facing the second case side seal surface, and includes a main body portion 42a extending along the second case side seal surface 18b and the second cover side seal surface 38b, and a sub-body portion 42c connected to one end of the main body portion 42a via a stepped portion 42 b. The sub body 42c is offset toward the inside of the casing body 10 with respect to the main body 42a by the width of the main body 42 a. The second seal portion 42 has a protrusion 42d protruding inward from a side portion of the body portion 42a on the other end side of the body portion 42 a. The protrusion 42d is offset from the other end of the body 42a by an amount corresponding to the width of the fourth seal 44.

The third seal portion 43 has: a body portion 43a disposed between the third case-side sealing surface 18c and the third cover-side sealing surface 38c facing the third case-side sealing surface; a first sub-body portion 43b that is continuous with one end of the main body portion 43a, extends in a direction perpendicular to the main body portion 43a, and is disposed between the first case-side sealing surface 18a and the first cover-side sealing surface 38 a; and a second sub body portion 43c connected to the other end of the main body portion 43a, extending in a direction perpendicular to the main body portion 43a, and disposed between the second case side seal surface 18b and the second cover side seal surface 38 b.

The tip of the first sub body portion 43b facing the opposite side of the main body portion 43a is in contact with one end of the main body portion 41a of the first seal portion 41 on the side where the stepped portion 41b is provided, and the side portion of the first sub body portion 43b is in contact with the side portion of the sub body portion 41c of the first seal portion 41. A boundary 45a between the tip of the first sub body portion 43b of the third seal portion 43 and the one end of the main body portion 41a of the first seal portion 41 extends in a direction parallel to the fourth wall 14 constituting the ceiling wall of the box body 10, and a boundary 45b between the side portion of the first sub body portion 43b and the side portion of the sub body portion 41c of the first seal portion 41 extends from the boundary 45a toward the fourth wall 14 side and perpendicularly to the boundary 45 a.

Similarly, the tip of the second sub body portion 43c facing the opposite side of the body portion 43a abuts on the end of the body portion 42a of the second seal portion 42 on the side where the stepped portion 42b is provided, and the side portion of the second sub body portion 43c abuts on the side portion of the sub body portion 42c of the second seal portion 42. A boundary 46a between the tip of the first sub body portion 43c of the third seal portion 43 and the end of the main body portion 42a of the second seal portion 42 extends in a direction parallel to the fourth wall 14 constituting the ceiling wall of the box body 10, and a boundary 46b between the side portion of the second sub body portion 43c and the side portion of the sub body portion 42c of the second seal portion 42 extends from the boundary 46a toward the fourth wall 14 side and perpendicularly to the boundary 46 a.

The fourth seal portion 44 is disposed between the fourth case side seal surface 18d and the fourth cover side seal surface 38d opposed thereto. One end of the fourth seal portion 44 is in contact with the body portion 41a of the first seal portion 41 from the side, and the side portion of the one end side of the fourth seal portion 44 is in contact with the protrusion portion 41d of the first seal portion 41. A boundary 47a between the tip of the fourth seal portion 44 and the body portion 41a of the first seal portion 41 extends toward the fourth wall 14 constituting the ceiling wall of the box body 10, and a boundary 47b between the fourth seal portion 44 and the projection portion 41d of the first seal portion 41 extends perpendicularly to the boundary 47 a. Similarly, a boundary 48a between the other end of the fourth seal portion 44 and the body portion 42a of the second seal portion 42 extends toward the fourth wall 14 constituting the ceiling wall of the box body 10, and a boundary 48b between the fourth seal portion 44 and the projection portion 42d of the second seal portion 42 extends perpendicularly to the boundary 48 a.

In this way, by configuring the seal member 40 to have a single annular shape by combining four members, i.e., the first seal portion 41, the second seal portion 42, the third seal portion 43, and the fourth seal portion 44, when the seal member 40 is manufactured by punching from a rectangular sheet, the first seal portion 41, the second seal portion 42, the third seal portion 43, and the fourth seal portion 44 can be punched from a single sheet with a higher yield than when the annular seal member is punched from a single sheet. Thus, since a plurality of sealing members 40 can be manufactured from a single sheet, the manufacturing cost of the sealing members 40 can be reduced.

In the case 2 for electric equipment in a state of being sealed by the sealing member 40, the pressure of the air inside the housing space 10a changes due to heat generated by the electric equipment 3, a change in the air temperature of the environment in which the electric equipment device 1 is located, and the like, and therefore, if the annular sealing member 40 is divided into a plurality of portions and these portions are joined, the air can enter and exit from the boundary at the joined portion as the pressure of the air inside the housing space 10a changes. At this time, if water adheres to the outer surface of the joint portion of the sealing member 40, the water is sucked into the accommodating space 10a of the casing main body 10 through the boundary of the joint portion together with air, and there is a possibility that the waterproof property of the electrical equipment device 1 or the electrical equipment casing 2 is lowered.

In order to solve such a problem, in the present embodiment, the seal member 40 is configured to have a single annular shape by combining four members of the first seal portion 41, the second seal portion 42, the third seal portion 43, and the fourth seal portion 44, and these engaging portions are constituted to include boundaries 45b, 46b, 47a, 48a extending toward the fourth wall 14 and boundaries 45a, 46a, 47b, 48b extending perpendicularly to these boundaries 45b, 46b, 47a, 48a, and therefore, even if water adhering to the outer surface of the joint portion of the seal member 40 is sucked into the housing space 10a of the case body 10 through the boundary of the joint portion together with air, the water can be dropped downward by its own weight by the boundaries 45b, 46b, 47a, and 48a extending toward the fourth wall 14, and the water can be prevented from being sucked into the housing space 10a of the case body 10. This can improve the water resistance of the electrical equipment device 1 or the electrical equipment box 2.

Further, the sealing member 40 may be a member of an integral structure and formed in a ring-shaped structure, rather than a divided structure.

In the electrical equipment device 1 or the electrical equipment box 2 of the present embodiment having the above-described configuration, the cover body 20 is configured to have the first curved cover portion 24 and the second curved cover portion 25. Accordingly, the appearance of the cover 20 is a beautiful appearance with a rounded corner, and the electrical equipment case 2 and the electrical equipment device 1 of the present embodiment having the cover 20 of the above-described shape can have better design (beauty) than a case where the first curved cover part 24 or the second curved cover part 25 is not provided in the cover 20.

In the electrical equipment device 1 or the electrical equipment box 2 according to the present embodiment, the radii of the first curved cover portion 24 and the second curved cover portion 25 curved in an arc shape may be set to 10mm or more, for example. With this configuration, the first curved cover section 24 and the second curved cover section 25 are provided so that the corners have a rounded shape, thereby giving a sufficient impression to the viewer. Therefore, cover 20 and electrical equipment device 1 or electrical equipment box 2 using cover 20 can be provided with better design (appearance).

The radii of the first curved cover portion 24 and the second curved cover portion 25 curved in an arc shape may be set to be in the range of 20 to 80mm, for example. With this configuration, the first curved cover section 24 and the second curved cover section 25 are provided so that the corners have a rounded shape, thereby giving a suitable impression to the viewer. Therefore, the design (appearance) of cover 20 and electrical equipment device 1 or electrical equipment box 2 using cover 20 can be further improved.

In the present embodiment, since the cover body 20 is provided as a member having a U-shaped cross section and including the flat plate-shaped cover portion 21, the first side cover portion 22, the second side cover portion 23, the first curved cover portion 24, and the second curved cover portion 25, the appearance of the cover body 20 can be formed to have a circular arc across the corner portions on both sides of the flat plate-shaped cover portion 21, and the appearance can be made beautiful. Accordingly, the cover 20 having the above shape and the electrical equipment device 1 or the electrical equipment box 2 using the cover 20 can further improve design (appearance) as compared with a case where a curved cover is not provided in the cover.

In the present embodiment, since the second wall 12 and the third wall 13 of the box body 10 are covered with the first side cover 22 and the second side cover 23, it is possible to prevent a hand from directly touching the second wall 12 and the third wall 13 of the box body 10 heated by heat generated by the electric device 3.

Fig. 10A is a diagram schematically showing a cross section of an electrical apparatus of a comparative example, and fig. 10B is a diagram schematically showing a cross section of an electrical apparatus of the present embodiment.

As described above, by configuring the cover body 20 to include the first curved cover portion 24 and the second curved cover portion 25, the electrical equipment device 1 and the electrical equipment box 2 can have high design (aesthetic appearance).

However, in the electrical equipment device of the comparative example shown in fig. 10A, when the cover body 120 is configured to include the first curved cover portion 124 and the second curved cover portion 125 and not to include the waterproof frame, it is necessary to secure the waterproof line L between the case-side sealing surface 118 and the cover-side sealing surface 138 formed by the seal member 140 at the portion of the flat plate-shaped cover portion 121 inside the first curved cover portion 124 and the second curved cover portion 125. Therefore, the cover 120 is larger than the case body 10 in the width direction by an amount corresponding to the radius of the first curved cover part 124 and the second curved cover part 125. In particular, when the cover 120 includes the first side cover 122 and the second side cover 123, the first side cover 122 is separated from the second wall 112, and the second side cover 123 is also separated from the third wall 113, which causes a problem that a space is wasted between the first side cover 122 and the second wall 112 and between the second side cover 123 and the third wall 113, and the size of the electric device increases.

In contrast, as shown in fig. 10B, in the electrical equipment device 1 of the present embodiment, since the waterproof frame 30 formed so as to avoid the first curved cover portion 24 and the second curved cover portion 25 and arranged inside the flat plate-shaped cover portion 21 and the pair of curved cover portions 24 and 25 is provided on the cover body 20 including the first curved cover portion 24 and the second curved cover portion 25, and the cover-side sealing surface 38 is provided on the waterproof frame 30, the waterproof line L between the case-side sealing surface 18 and the cover-side sealing surface 38 formed by the sealing member 40 can be secured not only at the portion of the flat plate-shaped cover portion 21 but also in the range extending from the flat plate-shaped cover portion 21 to the first curved cover portion 24 and the second curved cover portion 25.

Therefore, even if the cover body 20 is configured to include the first curved cover portion 24 and the second curved cover portion 25, the size increase of the cover body 20 can be suppressed, and the waterproof structure can be ensured while suppressing the size increase of the electrical equipment device 1 and the electrical equipment box 2.

In particular, in the present embodiment, since the cover-side sealing surface 38 is disposed farther from the flat plate-shaped cover portion 21 than the first curved cover portion 24 and the second curved cover portion 25, the waterproof line L between the case-side sealing surface 18 and the cover-side sealing surface 38 formed by the seal member 40 can be secured not only in a portion of the flat plate-shaped cover portion 21 but also over the entire width of the inside of the cover body 20 including the first curved cover portion 24 and the second curved cover portion 25. Thus, even if the cover 20 is configured to include the first curved cover portion 24 and the second curved cover portion 25, the cover 20 can be set to a size corresponding to the casing main body 10, and a waterproof structure can be secured while the electrical equipment device 1 and the electrical equipment casing 2 are set to a minimum size.

Even when the cover 20 is configured to include the first side cover 22 and the second side cover 23, the gap between the first side cover 22 and the second wall 12 and between the second side cover 23 and the third wall 13 can be eliminated, whereby the electrical equipment device 1 or the electrical equipment box 2 can be set to the minimum size, and the waterproof structure can be secured.

In this case, by providing bosses protruding by a predetermined amount on the outer surface of the second wall 12 and the outer surface of the third wall 13, the gap between the first side cover 22 and the second wall 12 and the gap between the second side cover 23 and the third wall 13 can be adjusted so as to be uniform. The bosses may be provided, for example, around the threaded holes 50 of the outer surface of the second wall 12 and the outer surface of the third wall 13.

Further, the interior space of the waterproof frame 30 provided in the cover body 20 is connected to the housing space 10a of the box body 10, and the housing space 10a constitutes the interior space of the electrical equipment box 2, so that the box body 10 can be reduced by the waterproof frame 30. Therefore, even if the waterproof frame 30 is provided to the cover 20, the electrical equipment device 1 and the electrical equipment box 2 can be prevented from being enlarged.

As shown in fig. 3 and 8, the case body 10 may be configured to include a groove member 70.

The groove member 70 is formed in a rail shape having an open portion facing the projecting wall 16 side and a substantially U-shaped (Contraband-shaped) cross section, and is provided so as to be integrally connected to an edge of the third case-side sealing surface 18c facing the opening 10b side. The groove member 70 extends in a direction parallel to the fourth wall 14 over the entire range between the second wall 12 and the third wall 13, protrudes from the opening 10b to the outside of the case main body 10, and is disposed below the third case-side sealing surface 18c of the case-side sealing surface 18 extending along the third side 21c of the flat plate-shaped cover portion 21.

The trough member 70 having the above-described structure can receive a liquid such as water and can discharge the received liquid to the outside from both end portions.

The groove member 70 may be formed separately from the third casing side sealing surface 18c and fixed to the casing main body 10.

When the electrical equipment device 1 is installed outdoors in a posture in which the fourth wall 14 faces upward so that the fourth wall 14 becomes a ceiling wall, water such as rainwater may accumulate in the main body portion 43a of the third sealing portion 43 of the sealing member 40 disposed between the third case-side sealing surface 18c of the case-side sealing surface 18 and the third cover-side sealing surface 38c of the cover-side sealing surface 38.

In this case, the water flows toward the flat plate-shaped cover portion 21 along the third partition wall portion 34 inclined so that the flat plate-shaped cover portion 21 side is lower, then flows toward the lower end side of the cover body 20 through the first communicating portion 60 and the second communicating portion 61, which are drainage channels, provided at both side portions of the third partition wall portion 34, and is discharged to the outside from the gaps between the curved surfaces of the first curved cover portion 24, the second curved cover portion 25, and the projecting wall 16.

However, there may be a case where water accumulated in the body portion 43a of the third seal portion 43 disposed between the third case side seal surface 18c and the third cover side seal surface 38c remains on the body portion 43a of the third seal portion 43 and is not discharged. In this case, when cover 20 is detached from casing body 10 with water remaining on main body 43a of third sealing portion 43 for maintenance of electrical device 3 or the like, the water may intrude into housing space 10a of casing body 10 and adhere to electrical device 3.

In contrast, in the electrical equipment device 1 of the present embodiment, since the casing main body 10 is provided with the groove member 70 disposed below the third casing side sealing surface 18c, even when the cover 20 is detached from the casing main body 10 in a state where the water accumulated in the main body portion 43a of the third sealing portion 43 remains on the main body portion 43a of the third sealing portion 43 without being discharged, the water can be received by the groove member 70 and discharged to the outside of the casing main body 10 from both ends of the groove member 70. This prevents water from accidentally entering the housing space 10a of the box body 10 and adhering to the electrical equipment 3.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

For example, although the cover body 20 is configured to include the first curved cover portion 24 and the second curved cover portion 25 in the above embodiment, it may be configured to include only one curved cover portion. In this case, the waterproof frame 30 may be configured to include only one partition wall portion corresponding to the curved cover portion.

In the above embodiment, cover 20 is configured to include first side cover portion 22 and second side cover portion 23, but may be configured not to include first side cover portion 22 and second side cover portion 23.

Further, in the above-described embodiment, the cover-side sealing surface 38 is disposed at a position farther from the flat plate-shaped cover portion 21 than the first curved cover portion 24 and the second curved cover portion 25 in the direction perpendicular to the flat plate-shaped cover portion 21, but the cover-side sealing surface 38 may be disposed at a position within the range of the first curved cover portion 24 and the second curved cover portion 25.

In the above embodiment, the groove member 70 is provided in the case body 10, but the groove member 70 may not be provided.

In the above embodiment, the electrical equipment device 1 is set in an attitude in which the fourth wall 14 faces upward and the extending direction of the first wall 11 is parallel to the plumb direction, but the present invention is not limited thereto, and the setting attitude of the electrical equipment device 1 may be variously changed.

Description of the reference numerals:

1 Electrical apparatus device

2 casing for electrical equipment

3 electric apparatus

10 case body

10a accommodating space

10b opening

11 first wall

11a first side

11b second side

11c third side

11d fourth side

11e notch part

12 second wall

13 third wall

13a cut part

14 fourth wall

15 fifth wall

16 projecting wall

16a end face

17 wall of the cover

18 side sealing surface of box body

18a first case side seal surface

18b second case side seal surface

18c third case side seal face

18d fourth Box side sealing surface

19 frame element

20 cover body

21 flat plate cover part

21a first side

21b second side

21c third side

21d fourth side

22 first side cover part

23 second side cover part

24 first curved cover portion

25 second curved cover section

26 mounting hole

30 waterproof frame

30a opening

31 fixing wall part

32 first partition wall part

33 second partition wall part

34 third dividing wall

35 fourth dividing wall part

36 first support wall

37 second support wall

38 shroud side seal face

38a first case side seal face

38b second cover side sealing surface

38c third casing side sealing surface

38d fourth case side seal face

40 sealing member

41 first seal part

41a main body part

41b step part

41c sub body part

41d projection part

42 second seal

42a main body part

42b step part

42c sub-body part

42d projection

43 third seal part

43a body part

43b first sub-body portion

43c second sub-body part

44 fourth seal

45a boundary

45b boundary

46a boundary

46b boundary

47a boundary

47b boundary

48a boundary

48b boundary

50 threaded hole

51 screw member

60 first communication part

61 second communication part

120 cover body

121 flat plate cover

124 first curved cover portion

125 second curved cover section

140 sealing member

L waterproof line