阅读说明：本技术 电磁屏蔽构件及线束 (Electromagnetic shielding member and wire harness ) 是由 北原裕太 于 2020-01-24 设计创作，主要内容包括：电磁屏蔽构件(20)具备：壳体(30),具有收纳两条电线的槽部(30a、30b)；盖(40),装配于壳体(30),将槽部(30a、30b)覆盖；以及按压机构(50),收纳于槽部(30a、30b)内,按压各电线。各按压机构(50)具有：壁部(51),具有在宽度方向(W)上对置的一对对置壁部(53),与壳体(30)的底壁(31)一起将各电线的外周包围；和按压部(55A、55B),分别设置于壁部(51)的一对对置壁部(53),按压各电线。(The electromagnetic shield member (20) is provided with: a case (30) having groove sections (30a, 30b) for accommodating two electric wires; a cover (40) that is attached to the housing (30) and covers the groove sections (30a, 30 b); and a pressing mechanism (50) which is accommodated in the groove parts (30a, 30b) and presses the wires. Each pressing mechanism (50) has: a wall (51) having a pair of opposing walls (53) that oppose each other in the width direction (W), and that surrounds the outer periphery of each wire together with the bottom wall (31) of the housing (30); and pressing portions (55A, 55B) provided on the pair of opposing wall portions (53) of the wall portion (51) and pressing the wires.)

1. An electromagnetic shield member is provided with:

a housing having a groove portion for accommodating the electric wire;

a cover assembled to the housing to cover the groove portion; and

a pressing mechanism accommodated in the groove portion for pressing the electric wire,

the pressing mechanism includes: a wall portion that surrounds an outer periphery of the electric wire together with the groove portion; and a pressing portion provided on the wall portion and pressing the electric wire.

2. The electromagnetic shielding member according to claim 1,

the wall portion of the pressing mechanism includes a pair of opposing wall portions opposing in a width direction of the groove portion,

the pressing portion is provided on at least one of the pair of opposing wall portions, and presses the electric wire toward the other.

3. The electromagnetic shielding member according to claim 2,

the pressing portions are provided on both of the pair of opposing wall portions.

4. The electromagnetic shielding member according to claim 3,

the pressing portions are provided at positions different from each other in the extending direction of the groove portion.

5. The electromagnetic shielding member according to any one of claims 1 to 4,

the pressing portion is formed by cutting and punching a part of the wall portion.

6. The electromagnetic shielding member according to any one of claims 1 to 5, wherein,

the pressing mechanism includes a biasing member that biases the pressing portion toward the electric wire.

7. The electromagnetic shielding member according to any one of claims 2 to 6,

a restricting portion that restricts the electric wire from floating from an inner surface of the groove portion is provided at a distal end portion of the pressing portion.

8. The electromagnetic shielding member according to claim 7,

the limiting part and the pressing part are arranged separately.

9. A wire harness is provided with:

an electric wire; and

the electromagnetic shielding member according to any one of claim 1 to claim 8,

the electric wire is pressed by the pressing portion of the pressing mechanism.

Technical Field

The present invention relates to an electromagnetic shield member and a wire harness including the electromagnetic shield member and an electric wire.

Background

Conventionally, a wire harness applied to a vehicle such as an electric vehicle includes a plurality of electric wires and an electromagnetic shield member having conductivity and electromagnetically shielding the plurality of electric wires by individually covering the plurality of electric wires (see, for example, patent document 1). The electromagnetic shield member described in document 1 includes a shield protector having a groove-shaped housing portion capable of housing each electric wire individually, and a cover for closing the groove-shaped housing portion. Then, the outer periphery of each electric wire is covered with the shield protector and the cover, whereby each electric wire is electromagnetically shielded.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2005-44607

Disclosure of Invention

Problems to be solved by the invention

However, in the conventional electromagnetic shield member including the electromagnetic shield member described in patent document 1 and the wire harness including the electromagnetic shield member, improvement of heat dissipation is desired. In particular, in a wire harness in which electric wires are connected to high-voltage electric devices such as inverters, the current flowing through the electric wires is increased, and therefore the problem of heat generation of the electric wires becomes remarkable.

The invention aims to provide an electromagnetic shielding member and a wire harness capable of improving heat dissipation of wires.

Means for solving the problems

An electromagnetic shield member for achieving the above object includes: a housing having a groove portion for accommodating the electric wire; a cover assembled to the housing to cover the groove portion; and a pressing mechanism which is accommodated in the groove portion and presses the electric wire, the pressing mechanism including: a wall portion that surrounds an outer periphery of the electric wire together with the groove portion; and a pressing portion provided on the wall portion and pressing the electric wire.

According to this configuration, the pressing mechanism having the pressing portion that presses the electric wire is provided in the groove portion of the housing. Since the pressing portion is provided on the wall portion that surrounds the outer periphery of the electric wire together with the groove portion of the housing, the electric wire is pressed by the pressing portion by accommodating the electric wire in the electromagnetic shield member. Therefore, the heat of the electric wire is easily dissipated through the wall portion including the pressing portion.

In the electromagnetic shielding member, it is preferable that the wall portion of the pressing mechanism includes a pair of opposing wall portions opposing each other in a width direction of the groove portion, and the pressing portion is provided on at least one of the pair of opposing wall portions and presses the electric wire toward the other.

According to this configuration, the pressing portion is provided on at least one of the pair of opposing wall portions. Therefore, when the electric wire has excess length due to thermal expansion, the electric wire is bent in the width direction while being pressed by the pressing portion. Thereby, the extra length of the electric wire can be absorbed, and the state of the pressing part contacting with the outer peripheral surface of the electric wire can be maintained. Therefore, even when the extra length of the electric wire is generated, the heat of the electric wire is easily dissipated through the opposing wall portion including the pressing portion.

In the electromagnetic shielding member, it is preferable that the pressing portion is provided on both of the pair of opposing wall portions.

According to this configuration, since the pressing portions are provided on both the pair of opposing wall portions, the electric wire is pressed from both sides in the width direction. Therefore, as compared with a configuration in which the wire is pressed by the pressing portion from only one side in the width direction, the pressing portions and the wire are easily brought into close contact with each other, and the contact area between the pressing portions and the wire is increased. Therefore, the heat of the electric wire is easily further dissipated through the opposing wall portion including the pressing portion.

In the above electromagnetic shielding member, it is preferable that the pressing portions are provided at positions different from each other in an extending direction of the groove portion.

With this configuration, the pressing portions are provided at different positions from each other in the extending direction of the groove portion. Therefore, a portion of the electric wire pressed toward one side in the width direction and a portion pressed toward the other side in the width direction are at different positions in the extending direction. Thus, when the wire has excess length due to thermal expansion, the wire is bent to one side and the other side in the width direction at different positions in the extending direction. Therefore, the pressing portions and the electric wire are brought into close contact with each other, but the excess length of the electric wire can be appropriately absorbed.

Further, according to the above configuration, the pressing portions press the electric wire from both sides in the width direction at different positions in the extending direction. Therefore, in order to absorb the predetermined extra length, the distance that each pressing portion presses the electric wire is shorter than the distance that the pressing portion presses the electric wire in a configuration in which the pressing portion is provided only on one side in the width direction. This makes it possible to reduce the distance between the pair of opposing wall portions of the pressing mechanism, and thus to reduce the size of the pressing mechanism in the width direction.

In the above electromagnetic shielding member, it is preferable that the pressing portion is formed by cutting and punching a part of the wall portion.

According to this structure, the pressing portion and the wall portion are formed integrally. Therefore, the thermal resistance at the interface of the pressing portion and the wall portion is reduced as compared with the structure in which the pressing portion and the wall portion are formed. Therefore, the heat of the electric wire is easily dissipated through the pressing portion.

Further, according to the above configuration, since it is not necessary to prepare a separate pressing portion, an increase in the number of components of the pressing mechanism can be suppressed.

In the electromagnetic shield member, it is preferable that the pressing mechanism includes a biasing member for biasing the pressing portion toward the electric wire.

According to this configuration, since the pressing portion is biased toward the electric wire by the biasing member, when the electric wire is bent due to an excess length caused by thermal expansion of the electric wire, the pressing portion follows the bending of the electric wire and appropriately contacts the outer peripheral surface of the electric wire. Therefore, the heat of the electric wire is easily dissipated through the pressing portion.

In the above electromagnetic shield member, it is preferable that a restricting portion that restricts the electric wire from floating from an inner surface of the groove portion is provided at a distal end portion of the pressing portion.

According to this configuration, the restriction portion provided at the distal end portion of the pressing portion can suppress the wire from floating from the inner surface of the groove portion of the housing. Therefore, the state in which the electric wire is in contact with the inner surface of the groove portion is easily maintained. Therefore, the heat of the electric wire is easily dissipated through the pressing portion and the groove portion of the case.

In the above electromagnetic shield member, it is preferable that the restricting portion is provided separately from the pressing portion.

In the structure in which the pressing portion is formed by cutting and punching from a part of the opposing wall portion of the pressing mechanism, and the regulating portion is provided integrally with the pressing portion, the pressing portion and the regulating portion need to be cut and punched from the same opposing wall portion, and therefore, there is a possibility that the degree of freedom of the shape of the regulating portion is reduced.

In this respect, according to the above configuration, since the regulating portion and the pressing portion are provided separately, the inconvenience can be suppressed.

Preferably, the wire harness for achieving the above object includes an electric wire and any one of the electromagnetic shielding members, and the electric wire is pressed by the pressing portion of the pressing mechanism.

According to this structure, the electromagnetic shielding member can exhibit the effects comparable to those of any of the electromagnetic shielding members described above.

Effects of the invention

According to the present invention, the heat dissipation of the electric wire can be improved.

Drawings

Fig. 1 is a perspective view showing a wire harness according to an embodiment of the electromagnetic shield member and the wire harness.

Fig. 2 is an exploded perspective view showing the electromagnetic shielding member of this embodiment.

Fig. 3 is a sectional view taken along line 3-3 of fig. 1.

Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 1.

Fig. 5 is a view corresponding to fig. 3, and is a cross-sectional view of the wire harness showing a state in which excess length of each electric wire is generated.

Fig. 6 is a view showing a pressing mechanism according to modification 1, wherein (a) is a perspective view showing a state where a contact member is attached to a pressing portion, and (b) is a vertical sectional view centering on the pressing portion and the contact member.

Fig. 7 is a perspective view showing a pressing mechanism according to modification 2.

Fig. 8 is a sectional view showing a pressing mechanism according to modification 3.

Detailed Description

Hereinafter, an embodiment of the electromagnetic shielding member and the wire harness will be described with reference to fig. 1 to 5. In addition, in the drawings, a part of the structure is sometimes shown enlarged or simplified for convenience of explanation. Further, the dimensional ratio of each portion may be different from the actual one.

The wire harness of the present embodiment is routed on a path including, for example, under the floor of a vehicle such as a hybrid vehicle, an electric vehicle, or the like, and electrically connects a plurality of devices to each other.

As shown in fig. 1 and 2, the wire harness includes: two electric wires 10 arranged side by side; and a conductive electromagnetic shield member 20 covering each of the electric wires 10.

The electric wire 10 includes, for example, a conductive core wire and an insulating coating portion that coats an outer periphery of the core wire. Both ends of each wire 10 are connected to the above-described devices.

The electromagnetic shield member 20 includes: a housing 30 having groove portions 30a, 30b for individually housing the electric wires 10; a cover 40 attached to the case 30 and covering the grooves 30a and 30 b; and a plurality of pressing mechanisms 50 housed in the grooves 30a, 30b and pressing the electric wire 10. In the present embodiment, the pressing mechanisms 50 are provided in the respective grooves 30a and 30b of the housing 30 one by one. The case 30, the lid 40, and the pressing mechanism 50 are each formed of a metal material such as an aluminum alloy.

Hereinafter, the extending direction of the grooves 30a and 30b is referred to as an extending direction L, and the direction perpendicular to the extending direction L and in which the grooves 30a and 30b are arranged is referred to as a width direction W.

< case 30>

As shown in fig. 2, the housing 30 has a bottom wall 31 extending along the extending direction L and a total of three side walls 32 protruding from both ends in the width direction W and the central portion in the width direction W of the bottom wall 31. Each side wall 32 extends over the entire extension direction L of the bottom wall 31.

The bottom wall 31 and a pair of side walls 32 adjacent to each other in the width direction W form the grooves 30a and 30 b. In the present embodiment, the groove portions 30a and 30b share the side wall 32 located at the center in the width direction W.

The housing 30 has a pair of L-shaped brackets 35 joined to the outer surfaces of the side walls 32 at both ends in the width direction W. Each bracket 35 has a joint portion 36 joined to one end of the side wall 32 in the extending direction L, and a fitting portion 37 bent from one end of the joint portion 36 in the extending direction L. Each mounting portion 37 is formed with a mounting hole 38 penetrating in the extending direction L. The mounting portions 37 are flush with one end surface of the side walls 32 in the extending direction L.

< cover 40>

As shown in fig. 2, the cover 40 has: an opposing wall 41 extending in the extending direction L and opposing the bottom wall 31 of the housing 30; and two side walls 42 protruding from both ends of the opposing wall 41 in the width direction W. Each side wall 42 extends over the entire extending direction L of the opposing wall 41.

As shown in fig. 1 and 4, the side walls 42 of the cover 40 cover the side walls 32 at both ends of the housing 30 in the width direction W from the outside in the width direction W.

As shown in fig. 2, the cover 40 has a pair of L-shaped brackets 45 joined to the outer surfaces of the side walls 42 at both ends in the width direction W. Each bracket 45 includes a joint portion 46 joined to one end of the side wall 42 in the extending direction L, and a fitting portion 47 bent from one end of the joint portion 46 in the extending direction L. Each mounting portion 47 is formed with a mounting hole 48 penetrating in the extending direction L.

Here, a relief portion 49 is formed by cutting at one end in the extending direction L of each side wall 42, and the relief portion 49 is used to relieve the engagement portion 36 of the holder 35 of the case 30 when the cover 40 is attached to the case 30. The joining portion 46 of each bracket 45 covers each escape portion 49 from the outside in the width direction W.

The brackets 35 of the case 30 and the brackets 45 of the cover 40 overlap each other in the extending direction L, and the cover 40 is mounted to the case 30 by screwing nuts 101 to bolts 100 inserted through the mounting holes 38 of the brackets 35 and the mounting holes 48 of the brackets 45.

< pressing mechanism 50>

As shown in fig. 2, the pressing mechanism 50 has a wall 51 that surrounds the outer periphery of each electric wire 10 together with the bottom wall 31 of the housing 30. The wall 51 is configured by a top wall 52 and a pair of opposing walls 53, the top wall 52 extending along the extending direction L and opposing the bottom wall 31 of the housing 30, and the pair of opposing walls 53 protruding from both ends of the top wall 52 in the width direction W and opposing each other in the width direction W. Each opposing wall portion 53 extends over the entire extending direction L of the top wall portion 52.

As shown in fig. 2 and 3, pressing portions 55A and 55B formed by cutting and punching out a part of each of the opposing wall portions 53 on one side (right side in fig. 3) in the width direction W and the opposing wall portion 53 on the other side (left side in fig. 3) in the width direction W are provided, and the pressing portions 55A and 55B press the respective electric wires 10 inward in the width direction W. The pressing portion 55A is provided on one side (lower side in fig. 3) of the extending direction L of the opposing wall portion 53 on the one side. The pressing portion 55B is provided on the other side (upper side in fig. 3) of the extending direction L of the opposing wall portion 53 on the other side. Therefore, the pressing portions 55A and 55B are provided at different positions from each other in the extending direction L.

The pressing portion 55A is cut and punched from the opposing wall portion 53 with the other side in the extending direction L as a base end and with the one side in the extending direction L as a tip end. The pressing portion 55B is cut and punched from the opposing wall portion 53 with one side in the extending direction L as a base end and the other side in the extending direction L as a tip end. Therefore, the pressing portions 55A and 55B extend in different directions from each other in the extending direction L.

Each of the pressing portions 55A and 55B has a curved portion 56 curved so as to bulge inward in the width direction W from the opposing wall portion 53, and an extending portion 57 extending in the extending direction L from the tip of the curved portion 56. Each wire 10 is pressed inward in the width direction W by the extending portions 57 of the pressing portions 55A and 55B.

As shown in fig. 2 to 4, a restricting portion 58 is formed at a portion of the tip of each extending portion 57 on the top wall portion 52 side, and the restricting portion 58 restricts each wire 10 from floating from the bottom wall 31 of the housing 30. Each of the restricting portions 58 extends from the above-described portion of each of the extending portions 57 so as to be in contact with the outer peripheral surface of each of the electric wires 10. Therefore, the wires 10 are pressed inward in the width direction W by the extending portions 57 of the pressing portions 55A and 55B, and are pressed inward in the width direction W and toward the bottom wall 31 by the regulating portions 58. In the present embodiment, the curved portion 56, the extending portion 57, and the regulating portion 58 are formed integrally.

Each of the opposing wall portions 53 is provided with a plate spring 60 as a biasing member for biasing each of the pressing portions 55A and 55B toward each of the electric wires 10. Each leaf spring 60 has a rectangular shape extending in the extending direction L. The base end of each leaf spring 60 is joined to the opposing wall portion 53 by welding or the like, for example, and the tip end abuts against the extending portion 57 of the pressing portions 55A, 55B from the outside in the width direction W. The plate spring 60 is formed by bending a metal material such as stainless steel.

In the present embodiment, the pressing mechanisms 50 accommodated in the grooves 30a and 30b are provided at the same position in the extending direction L.

The operation of the present embodiment will be described.

As shown in fig. 3, the electric wires 10 housed in the electromagnetic shield member 20 are pressed inward in the width direction W by the pressing portions 55A and 55B of the pressing mechanisms 50. (the above is effect 1).

Here, as shown in fig. 5, when the extra length of each electric wire 10 due to thermal expansion occurs, each electric wire 10 is bent in the width direction W while being pressed by the pressing portions 55A and 55B. This allows the excess length of each electric wire 10 to be absorbed, and the pressing portions 55A and 55B to be maintained in contact with the outer peripheral surface of each electric wire 10 (action 2).

Since the pressing portions 55A and 55B are provided at different positions from each other in the extending direction L, the portion of each wire 10 pressed toward one side in the width direction W and the portion pressed toward the other side in the width direction W are at different positions from each other in the extending direction L. As a result, when the wires 10 have excess length due to thermal expansion, the wires 10 are bent to one side and the other side in the width direction W at different positions in the extending direction L (action 3).

The effects of the present embodiment will be described.

(1) The electromagnetic shield member 20 includes: a housing 30 having groove portions 30a, 30b for accommodating the two electric wires 10; a cover 40 attached to the case 30 and covering the grooves 30a and 30 b; and a plurality of pressing mechanisms 50 housed in the grooves 30a and 30b and pressing the wires 10. Each pressing mechanism 50 has: a wall 51 having a pair of opposing walls 53 opposing each other in the width direction W, and surrounding the outer periphery of each wire 10 together with the bottom wall 31 of the housing 30; and pressing portions 55A and 55B provided on the pair of opposing wall portions 53 of the wall portion 51, respectively, and pressing the wires 10 inward in the width direction W.

With this configuration, since function 1 described above is performed, the heat of each electric wire 10 is easily dissipated through the facing wall portion 53 including the pressing portions 55A and 55B.

Further, since the above-described action 2 is exerted, even when the extra length of each electric wire 10 is generated, the heat of each electric wire 10 is easily dissipated through the facing wall portion 53 including the pressing portions 55A and 55B.

(2) The pressing portions 55A and 55B are provided at different positions from each other in the extending direction L.

According to such a configuration, since the above-described action 3 is exerted, the pressing portions 55A and 55B are brought into close contact with the electric wires 10, but the excess length of the electric wires 10 can be appropriately absorbed.

Further, according to the above configuration, the pressing portions 55A and 55B press the wires 10 from both sides in the width direction W at different positions in the extending direction L. Therefore, in order to absorb the predetermined extra length, the distance by which each wire 10 is pressed by each pressing portion 55A, 55B is shorter than the distance by which each wire 10 is pressed by the pressing portion in the configuration in which the pressing portion is provided only on one side in the width direction W. This can reduce the distance between the pair of opposing wall portions 53 of the pressing mechanism 50, and thus reduce the size of the pressing mechanism 50 in the width direction W.

(3) The pressing portions 55A and 55B are formed by cutting and punching a part of each opposing wall portion 53.

With this configuration, the pressing portions 55A and 55B and the opposing wall portions 53 are formed integrally. Therefore, compared to a structure in which the pressing portions 55A and 55B and the opposing wall portions 53 are formed separately, the thermal resistance at the interface between the pressing portions 55A and 55B and the opposing wall portions 53 is reduced. Therefore, heat of the wires 10 is easily dissipated through the pressing portions 55A and 55B.

In addition, according to the above configuration, it is not necessary to prepare a separate pressing portion, and therefore, an increase in the number of components of the pressing mechanism 50 can be suppressed.

(4) The pressing mechanism 50 includes a plate spring 60 as a biasing member for biasing the pressing portions 55A and 55B toward the electric wires 10.

According to such a configuration, since the pressing portions 55A and 55B are biased toward the wires 10 by the plate springs 60, when the wires 10 are bent due to an extra length caused by thermal expansion, the pressing portions 55A and 55B follow the bending of the wires 10 and appropriately contact the outer peripheral surfaces of the wires 10. Therefore, heat of the wires 10 is easily dissipated through the pressing portions 55A and 55B.

(5) The extending portions 57 of the pressing portions 55A and 55B are provided with restricting portions 58, and the restricting portions 58 prevent the wires 10 from floating from the bottom wall 31 of the housing 30.

According to such a configuration, the restriction portions 58 provided in the extension portions 57 of the pressing portions 55A and 55B can suppress the respective electric wires 10 from floating from the bottom wall 31 of the housing 30. Therefore, the state in which the wires 10 are in contact with the bottom wall 31 of the housing 30 is easily maintained. Therefore, heat of each wire 10 is easily dissipated through each pressing portion 55A, 55B and the bottom wall 31 of the case 30.

(6) The wire harness includes two electric wires 10 and an electromagnetic shield member 20 pressed by the pressing portions 55A and 55B of the two pressing mechanisms 50.

With such a configuration, effects comparable to effects (1) to (5) described above can be achieved.

This embodiment can be modified as follows. The present embodiment and the following modifications can be combined and implemented within a range not technically contradictory to each other.

In the following modified examples 1, 2, and 3 shown in fig. 6, 7, and 8, respectively, the same components as those in the above embodiment are denoted by the same reference numerals, and the corresponding components are denoted by the reference numerals with "100", "200", and "300", so that redundant description is omitted.

The pressing portions 55A and 55B are not limited to the bending portion 56, the extending portion 57, and the regulating portion 58 being integrally formed. As shown in fig. 6(a) and 6(B), the pressing portions 155A and 155B may be formed by the bent portion 156 and the extended portion 157, the pressing portions 155A and 155B may have the regulating portion 158, and the contact member 170 that contacts the electric wires 10 may be attached. The abutment member 170 has a plate-like fitting portion 171 extending in the extending direction L, and a regulating portion 158 formed at a portion of the fitting portion 171 on the top wall portion 52 side. A recess 172 is formed in a portion of the fitting portion 171 on one side in the extending direction L on the outer surface in the width direction W, and the tip of the extending portion 157 is inserted into and fixed to the recess 172. In this case, the plate spring 60 may be provided so as to press a portion of the outer surface of the fitting portion 171 in the width direction W where the recess 172 is not formed.

However, in the structure in which the pressing portion is formed by cutting and punching from a part of the opposing wall portion of the pressing mechanism, and the regulating portion is provided integrally with the pressing portion, the pressing portion and the regulating portion need to be cut and punched from the same opposing wall portion, and therefore, there is a possibility that the degree of freedom in the shape of the regulating portion is lowered.

In this regard, according to the configuration of modification 1, since the abutting member 170 having the regulating portion 158 is provided separately from the pressing portions 155A and 155B, the inconvenience described above can be suppressed.

In the above-described modification 1, the contact member 170 may be made of a metal material or a resin material. The abutment member 170 and the extension portion 157 may be fixed by welding, adhesion via an adhesive, or the like.

As shown in fig. 7, the restricting portion 58 is omitted, and the pressing portions 255A and 255B formed by the bent portion 256 and the extending portion 157 may be used.

As shown in fig. 8, the pressing portions 355A and 355B may be separate from the facing wall 53. In this case, the pressing portions 355A and 355B may be fixed to the opposing wall 53 by welding, for example.

In such a configuration, a coil spring 360 that biases the extending portion 357 of each of the pressing portions 355A and 355B inward in the width direction W may be provided instead of the plate spring 60.

The pressing portions 55A and 55B may be provided at the same position in the extending direction L.

Each pressing mechanism 50 may have a plurality of pressing portions 55A and 55B.

Each pressing mechanism may be a mechanism having only the pressing portion 55A, or may be a mechanism having only the pressing portion 55B.

The pressing portion may be formed by cutting and punching a part of the top wall portion 52 of the wall portion 51, and may be configured to press each electric wire 10 toward the bottom wall 31 of the housing 30. Even in this case, since the above-described action 1 can be performed, the heat of each electric wire 10 is easily dissipated through the top wall portion 52 including the above-described pressing portion.

The electromagnetic shield member 20 is not limited to being made of an aluminum alloy. Further, it may be made of, for example, stainless steel.

The electromagnetic shield member 20 may be a member including a plurality of pressing mechanisms 50 provided at intervals in the extending direction L.

The present invention is also applicable to a wire harness having one electric wire 10 or three or more electric wires 10.

The mounting posture of the harness is not limited to the posture in the above embodiment, and can be changed as appropriate.

Each wire 10 may have any cross-sectional shape such as a semicircle or a polygon in a cross-sectional shape of a surface orthogonal to the extending direction L.

The present disclosure includes the following installation examples. The reference numerals are not intended to limit the components of the exemplary embodiments, but are provided to assist understanding.

[ additional note 1] one or more embodiments of the present disclosure are suitable for an electromagnetic shield member (20) configured to electromagnetically shield an electric wire (10), and the electromagnetic shield member (20) may include:

a housing chamber (30a) configured to house a predetermined length portion of the electric wire (10) and having a 1 st length, the housing chamber (30a) having a lower surface (31) configured to support the predetermined length portion of the electric wire (10) from below, and mutually parallel 1 st and 2 nd side surfaces (53) configured to cover or support the predetermined length portion of the electric wire (10) from the side; and

and a 1 st elastic pressing portion (55A) which is disposed at a 1 st longitudinal direction position of the housing chamber (30a) on the 1 st side surface (53) of the housing chamber (30a) and elastically presses the electric wire (10) toward the 2 nd side surface (53) along the lower surface (31).

[ additional character 2] in one or several embodiments of the present disclosure, the electromagnetic shield member (20) may further include a 2 nd elastic pressing portion (55B), the 2 nd elastic pressing portion (55B) being disposed at a 2 nd longitudinal direction position of the housing chamber (30a) in the 2 nd side surface (53) of the housing chamber (30a), and elastically pressing the electric wire (10) toward the 1 st side surface (53) along the lower surface (31).

[ additional 3] in one or more embodiments of the present disclosure, the 1 st elastic pressing portion (55A) and the 2 nd elastic pressing portion (55B) may be configured to: bending the electric wire (10) along the lower surface (31) in such a manner that the entirety of the predetermined length portion of the electric wire (10) is in contact with the lower surface (31).

[ additional note 4] in one or more embodiments of the present disclosure, the 1 st elastic pressing portion (55A) and the 2 nd elastic pressing portion (55B) may be configured to: bending the electric wire (10) along the lower surface (31) in such a manner that the entirety of the predetermined length portion of the electric wire (10) is in contact with the lower surface (31) to form, for example, an S-shape, regardless of a change in length of the electric wire (10) caused by a change in temperature of the electric wire (10).

[ additional note 5] in one or more embodiments of the present disclosure, the lower surface (31) may be in contact with the entire predetermined length portion of the electric wire (10), and the 1 st and 2 nd side surfaces (53) may not be in contact with the electric wire (10) between the 1 st longitudinal position and the 2 nd longitudinal position except for the 1 st elastic pressing portion (55A) and the 2 nd elastic pressing portion (55B).

It will be obvious to those skilled in the art that the present invention may be embodied in other specific forms without departing from the technical spirit thereof. For example, some of the components described in the embodiment (or one or more embodiments thereof) may be omitted, or several components may be combined. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

Description of the reference numerals

10: an electric wire; 20: an electromagnetic shielding member; 30: a housing; 30 a: a groove part; 30 b: a groove part; 31: a bottom wall; 32: a side wall; 35: a support; 36: a joint portion; 37: an assembling portion; 38: an assembly hole; 40: a cover; 41: an opposing wall; 42: a side wall; 45: a support; 46: a joint portion; 47: an assembling portion; 48: an assembly hole; 49: an evacuation unit; 50: a pressing mechanism; 51: a wall portion; 52: a top wall portion; 53: an opposing wall portion; 55A, 155A, 255A, 355A: a pressing part; 55B, 155B, 255B, 355B: a pressing part; 56. 156, 256, 356: a bending section; 57. 157, 257, 357: an extension portion; 58. 158: a restricting section; 60: a plate spring; 100: a bolt; 101: a nut; 170: an abutting member; 171: an assembling portion; 172: a recess; 360: a coil spring.