Electrical equipment

JP2026142876APending Publication Date: 2026-09-08AUTONETWORKS TECH LTD +2
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Patent Information

Application Number
JP2025030128
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-09-08

AI Technical Summary

Benefits of technology

【0007】 本開示によれば、電気機器の防水性を高められる。

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Abstract

The objective is to provide technology that can improve the water resistance of electrical equipment. [Solution] The electrical device 10 includes a housing 30 which includes a housing body 31 having an opening 31B and a lid 40 attached to the housing body 31 to close the opening 31B, an electronic component 20 housed in the housing body 31, and a wire harness 50 which has one end connected to the electronic component 20 inside the housing 30, an intermediate part passing between the housing body 31 and the lid 40, and the other end extending outside the housing 30. The wire harness 50 includes a plurality of wiring members 51. The housing body 31 and the lid 40 form a clamping portion 12 that sandwiches the plurality of wiring members 51. In the clamping portion 12, the plurality of wiring members 51 are arranged in a line along a parallel direction perpendicular to the extending direction of the plurality of wiring members 51. The clamping direction of the clamping portion 12 is perpendicular to the extending direction and the parallel direction, respectively.
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Description

Technical Field

[0001] The present disclosure relates to electrical equipment. Background Art

[0002] Patent Document 1 discloses a wire harness waterproof sheet that improves the waterproof performance of a wire harness. The wire harness waterproof sheet described in Patent Document 1 simply waterproofs a wire harness that is attached to a location where it is not easily exposed to water. Prior Art Literature Patent Literature

[0003] Patent Document 1 Japanese Unexamined Patent Application Publication No. 2016-81860 Summary of the Invention Problem to be Solved by the Invention

[0004] It is desired to be able to improve the waterproof performance of electrical equipment.

[0005] Therefore, an object of the present disclosure is to provide a technology capable of improving the waterproof performance of electrical equipment. Means for Solving the Problem

[0006] An electrical apparatus according to the present disclosure includes: a housing including a housing body having an opening, and a lid attached to the housing body to close the opening; an electronic component housed in the housing body; and a wire harness having one end connected to the electronic component inside the housing, an intermediate portion passing between the housing body and the lid, and the other end extending out of the housing, wherein the wire harness includes a plurality of wiring members, the housing body and the lid sandwich the plurality of wiring members to form a sandwiching portion, in the sandwiching portion, the plurality of wiring members are arranged in a single row along a parallel direction orthogonal to an extending direction of the plurality of wiring members, and a sandwiching direction of the sandwiching portion is orthogonal to both the extending direction and the parallel direction. [Effects of the Invention]

[0007] According to this disclosure, the water resistance of electrical equipment can be improved. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a schematic side view showing electrical equipment according to Embodiment 1. [Figure 2] Figure 2 is a schematic bottom view showing the electrical equipment. [Figure 3] Figure 3 is a schematic cross-sectional view along the line III-III in Figure 2. [Figure 4] Figure 4 is an enlarged view of region R1 in Figure 3. [Figure 5] Figure 5 is a cross-sectional view along the VV line in Figure 4. [Figure 6] Figure 6 is an exploded view showing electrical equipment. [Figure 7] Figure 7 is an exploded view showing electrical equipment. [Figure 8] Figure 8 is an exploded view showing electrical equipment. [Modes for carrying out the invention]

[0009] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described.

[0010] The electrical equipment disclosed herein is as follows:

[0011] (1) An electrical device comprising: a housing body having an opening; a lid attached to the housing body to close the opening; an electronic component housed in the housing body; and a wire harness having one end connected to the electronic component inside the housing, the middle part passing between the housing body and the lid, and the other end extending to the outside of the housing, wherein the wire harness includes a plurality of wiring members, the housing body and the lid form a clamping portion that sandwiches the plurality of wiring members, in the clamping portion the plurality of wiring members are arranged in a line along a parallel direction perpendicular to the extending direction of the plurality of wiring members, and the clamping direction of the clamping portion is perpendicular to the extending direction and the parallel direction, respectively.

[0012] According to the electrical equipment in (1), the housing body and the lid form a clamping portion by sandwiching multiple wiring members that are arranged in parallel directions, which reduces the gap in the portion of the wiring members that extends from the housing, thereby suppressing water from entering through that gap.

[0013] (2) In the electrical equipment of (1), the clamping portion may have a first clamping portion and a second clamping portion located on the other end side along the extending direction of the first clamping portion. This makes it possible to provide multiple locations with small gaps along the extending direction of multiple wiring members, making it easier to suppress water from entering the inside of the housing.

[0014] (3)(2) In the electrical equipment, the positions of the first clamping portion and the second clamping portion are different in the clamping direction, and the plurality of wiring members may be bent between the first clamping portion and the second clamping portion. This makes it difficult for water that has entered the second clamping portion from the outside of the housing to reach the first clamping portion.

[0015] In the electric device according to (4) or (3), the housing may have a space between the first clamping portion and the second clamping portion, and the space includes: a first space located between the first clamping portion and the second clamping portion in the clamping direction; a second space located on a side opposite to the second clamping portion side with respect to the first clamping portion; and a third space located on a side opposite to the first clamping portion side with respect to the second clamping portion. Normally, the wiring members are arranged to be positioned in the first space. By providing the second space and the third space, when a portion of the wiring member between the first clamping portion and the second clamping portion becomes long, an extra-length portion can be accommodated in the second space or the third space.

[0016] In the electric device according to any one of (5) (1) to (4), the housing body has a body-side edge that contacts the plurality of wiring members from one side along the clamping direction, the cover has a cover-side edge that contacts the plurality of wiring members from the other side along the clamping direction, and the body-side edge and the cover-side edge may be located at different positions in the extending direction. Accordingly, compared with a case where the body-side edge of the housing body and the cover-side edge of the cover are located at the same position along the extending direction of the plurality of wiring members, a gap in the clamping portion can be more easily reduced.

[0017] In the electric device according to any one of (6) (1) to (5), the housing body has a body-side edge that contacts the plurality of wiring members from one side along the clamping direction, the cover has a cover-side edge that contacts the plurality of wiring members from the other side along the clamping direction, and a plurality of grooves in which the plurality of wiring members are individually fitted may be formed in each of the body-side edge and the cover-side edge. Accordingly, compared with a case where there is no groove, a gap in the clamping portion can be more easily reduced.

[0018] In the electric device according to any one of (7) and (1) to (6), the housing body has a body-side edge that contacts the plurality of wiring members from one side along the clamping direction, the lid has a lid-side edge that contacts the plurality of wiring members from the other side along the clamping direction, and each of the body-side edge and the lid-side edge may be formed of an elastic material. This makes it easier to reduce the gap in the clamping portion compared to the case where the body-side edge and the lid-side edge are formed of a hard resin material or the like.

[0019] In the electric device according to (8) and (4), the housing body has a body-side edge that contacts the plurality of wiring members from one side along the clamping direction, the lid has a lid-side edge that contacts the plurality of wiring members from the other side along the clamping direction, the body-side edge and the lid-side edge are located at different positions in the extending direction, each of the body-side edge and the lid-side edge is formed of an elastic material, and a plurality of grooves for individually accommodating the plurality of wiring members may be formed in each of the body-side edge and the lid-side edge. This makes it easier to reduce the gap between the wiring member and the housing body and the gap between the wiring member and the lid in the clamping portion.

[0020] In the electric device according to any one of (9) and (1) to (8), when the housing is disposed in a vehicle, the clamping portion may be formed at a position on a lower surface of the housing such that the extending direction of the plurality of wiring members in the clamping portion is along the vertical direction. In this case, water entering the housing is assumed to be caused by intrusion due to water splashing, capillary action, or water traveling along the wiring members due to a pressure difference between the inside and outside of the housing. Providing the clamping portion can easily suppress such water entry.

[0021] [Detailed Description of Embodiments of the Present Disclosure] Specific examples of the electric device of the present disclosure will be described below with reference to the drawings. The present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0022] In each drawing, some parts of the configuration may be exaggerated or simplified for ease of explanation. Also, the dimensional ratios of each part may differ in each drawing. Furthermore, in this specification, "parallel" and "orthogonal" do not only refer to strictly parallel or orthogonal connections, but also to connections that are approximately parallel or orthogonal within the range that achieves the function and effect of this embodiment.

[0023] In this disclosure, the three mutually orthogonal directions are defined as the X direction, the Y direction, and the Z direction. One side of the X direction is designated as the X1 direction, and the other side as the X2 direction. One side of the Y direction is designated as the Y1 direction, and the other side as the Y2 direction. One side of the Z direction is designated as the Z1 direction, and the other side as the Z2 direction. The X1 direction, X2 direction, Y1 direction, Y2 direction, Z1 direction, and Z2 direction are shown in each drawing.

[0024] [Embodiment 1] The electrical equipment according to Embodiment 1 will be described below. Figure 1 is a schematic side view showing the electrical equipment according to Embodiment 1. Figure 2 is a schematic bottom view showing the electrical equipment. Figure 3 is a schematic cross-sectional view along line III-III in Figure 2. Figure 4 is an enlarged view of region R1 in Figure 3. Figure 5 is a cross-sectional view along line VV in Figure 4. Figures 6 to 8 are exploded views showing the electrical equipment. Figure 6 is an exploded view corresponding to Figure 3, Figure 7 is an exploded view corresponding to Figure 4, and Figure 8 is an exploded view corresponding to Figure 5.

[0025] The electrical device 10 comprises electronic components 20, a housing 30, and a wire harness 50.

[0026] The electronic component 20 may include a circuit board 21 and a connector 22. The connector 22 is, for example, a board connector connected to the circuit board 21. The electronic component 20 may also be, for example, an electronic control unit (ECU).

[0027] The electronic components 20 are housed in the housing 30. The housing 30 includes a housing body 31 and a lid 40. The electronic components 20 are housed in the housing body 31. The housing body 31 has a housing section 31A, an opening 31B, and a mounting support section 32. The housing section 31A is a hollow portion inside the housing body 31. The housing section 31A may be sized to accommodate the circuit board 21 in a plan view. The opening 31B connects the housing section 31A to the outside of the housing 30. For example, the opening 31B may be an opening for inserting and removing the circuit board 21 from the housing body 31. For example, almost the entire surface of one side of the housing body 31 may be the opening 31B. The opening 31B may be an opening other than the one for the circuit board 21. The mounting support section 32 is the part to which the lid 40 is attached.

[0028] The lid 40 closes the opening 31B of the housing body 31. The lid 40 has a closing portion 41 and a mounting portion 42. The closing portion 41 is the part that closes the opening 31B. The mounting portion 42 is the part that is attached to the mounting receiving portion 32 of the housing body 31. The configuration of the mounting receiving portion 32 and the mounting portion 42 is not particularly limited, and known mounting structures for the housing body 31 and the lid 40 can be applied. For example, the mounting portion 42 may be a locking piece having a hole, and the mounting receiving portion 32 may be a locking projection that locks onto the peripheral edge of the hole in the mounting portion 42.

[0029] One end of the wire harness 50 is connected to the electronic component 20 inside the housing 30. The middle section of the wire harness 50 passes through the housing 30. The middle section of the wire harness 50 passes between the housing body 31 and the lid 40. The other end of the wire harness 50 extends outside the housing 30.

[0030] The wire harness 50 includes a plurality of wiring members 51. Each wiring member 51 is an electric wire or an optical fiber, etc. In this case, each wiring member 51 is an insulated electric wire. An insulated electric wire has a core wire 52 and an insulating sheath 53 that covers the core wire 52. In the example shown in Figure 5, all of the plurality of wiring members 51 are the same thickness. The plurality of wiring members 51 may consist of multiple types of wiring members 51 with different thicknesses from one another.

[0031] A connector 54 is provided at one end of the wiring member 51. The connector 54 is connected to the connector 22 inside the housing 30. The connector 54 is a non-waterproof type connector. For example, the connector 54 includes a plurality of connector terminals and a connector housing. The connector terminals are connected to the end of the wiring member 51 by crimping or the like. The connector housing is formed in a box shape. A plurality of cavities are formed in the connector housing. Connector terminals are housed in each cavity. The cavities penetrate two faces of the connector housing that are opposite each other. For example, in a non-waterproof type connector, while the structure is simple, water can flow from one end opening of the cavity to the other end opening. As shown in Figure 6, the connector 54 may be connected to the connector 22 located inside the housing 30 before the lid 40 is attached to the housing body 31. The lid 40 may be attachable to the housing body 31 with the connectors 22 and 54 connected.

[0032] A connector 55 may be provided at the other end of the wiring member 51. The connector 55 may be connected to a connector of another device or another wire harness. Multiple wiring members 51 may be bundled together between the housing 30 and the connector 55 by a bundling member 56. The bundling member 56 may be a bundling member such as tape or cable ties, or an exterior member (protective member) such as a sheet or protector. Of the multiple wiring members 51, the ones between the housing 30 and the connector 54 do not need to be bundled together by a bundling member 56.

[0033] The housing body 31 and the lid 40 form a clamping portion 12, sandwiching a plurality of wiring members 51. In the clamping portion 12, the plurality of wiring members 51 are arranged in a line along a parallel direction perpendicular to the extending direction of the plurality of wiring members 51. The clamping direction of the clamping portion 12 is perpendicular to both the extending direction and the parallel direction of the wiring members 51. Here, at the position of the clamping portion 12, the Z direction is the extending direction, the X direction is the clamping direction, and the Y direction is the parallel direction.

[0034] The clamping portion 12 has a first clamping portion 12A and a second clamping portion 12B. The first clamping portion 12A and the second clamping portion 12B are separated along the extending direction (Z direction). The first clamping portion 12A is located closer to one end (connector 54) along the extending direction (Z direction) than the second clamping portion 12B. The first clamping portion 12A is located inside the housing body 31 more than the second clamping portion 12B. The second clamping portion 12B is located closer to the other end (connector 55) along the extending direction (Z direction) than the first clamping portion 12A. The second clamping portion 12B is located outside the housing body 31 more than the first clamping portion 12A.

[0035] In the clamping direction (X direction), the positions of the first clamping portion 12A and the second clamping portion 12B are different. Multiple wiring members 51 are bent between the first clamping portion 12A and the second clamping portion 12B. The wiring members 51 have a bent portion between the first clamping portion 12A and the second clamping portion 12B. In the clamping direction (X direction), the distance between the first clamping portion 12A and the second clamping portion 12B is, for example, greater than the diameter of the wiring member 51. Here, as shown in Figure 4, the first clamping portion 12A is located closer to the lid 40 (X2 side) than the second clamping portion 12B. As a result, the portion of the wiring member 51 between the first clamping portion 12A and the connector 54 is less likely to be strained. The first clamping portion 12A may also be located closer to the housing body 31 (X1 side) than the second clamping portion 12B.

[0036] The housing 30 has a space S between the first clamping portion 12A and the second clamping portion 12B. The space S comprises a first space S1, a second space S2, and a third space S3. The first space S1 is located between the first clamping portion 12A and the second clamping portion 12B in the clamping direction. The second space S2 is located on the opposite side of the first clamping portion 12A from the second clamping portion 12B side. The third space S3 is located on the opposite side of the second clamping portion 12B from the first clamping portion 12A side.

[0037] The housing body 31 has a body side edge 33. The body side edge 33 contacts a plurality of wiring members 51 from one side (X1 side) along the clamping direction (X direction). The lid 40 has a lid side edge 43. The lid side edge 43 contacts a plurality of wiring members 51 from the other side (X2 side) along the clamping direction (X direction). In the extending direction (Z direction), the body side edge 33 and the lid side edge 43 are in different positions.

[0038] Here, the main body side edge 33 has a first main body side edge 33A that forms the first clamping portion 12A and a second main body side edge 33B that forms the second clamping portion 12B. The first main body side edge 33A and the second main body side edge 33B are separated along the clamping direction (X direction). The first main body side edge 33A and the second main body side edge 33B are separated along the extending direction (Z direction).

[0039] Here, a body-side recess 34 is formed on the body-side edge 33. The body-side recess 34 is the portion between the first body-side edge 33A and the second body-side edge 33B that is recessed on the opposite side from the lid 40 (towards X1). The body-side recess 34 forms the third space S3. Also, in this case, the first body-side edge 33A protrudes further toward the lid 40 (towards X2) than the second body-side edge 33B. The body-side recess 34 is recessed further toward the opposite side from the lid 40 (towards X1) than the second body-side edge 33B.

[0040] Here, the lid edge portion 43 has a first lid edge portion 43A that forms the first clamping portion 12A and a second lid edge portion 43B that forms the second clamping portion 12B. The first lid edge portion 43A and the second lid edge portion 43B are separated along the clamping direction (X direction). The first lid edge portion 43A and the second lid edge portion 43B are separated along the extending direction (Z direction).

[0041] The first main body side edge 33A and the first lid side edge 43A are separated along the extending direction (Z direction). Here, the first lid side edge 43A is located closer to one end (connector 54) of the wiring member 51 than the first main body side edge 33A. The first main body side edge 33A may also be located closer to one end (connector 54) of the wiring member 51 than the first lid side edge 43A.

[0042] The second main body side edge 33B and the second lid side edge 43B are separated along the extending direction (Z direction). Here, the second lid side edge 43B is located closer to one end (connector 54) of the wiring member 51 than the second main body side edge 33B. The second main body side edge 33B may also be located closer to one end (connector 54) of the wiring member 51 than the second lid side edge 43B.

[0043] Along the extending direction (Z direction), the order of the first body side edge 33A and the first lid side edge 43A is the same as the order of the second body side edge 33B and the second lid side edge 43B. Along the extending direction (Z direction), the order of the first body side edge 33A and the first lid side edge 43A is different from the order of the second body side edge 33B and the second lid side edge 43B. Along the extending direction (Z direction), the first lid side edge 43A and the second lid side edge 43B may be located between the first body side edge 33A and the second body side edge 33B. Along the extending direction (Z direction), the first body side edge 33A and the second body side edge 33B may be located between the first lid side edge 43A and the second lid side edge 43B.

[0044] Here, a lid-side recess 44 is formed on the lid-side edge 43. The lid-side recess 44 is the portion between the first lid-side edge 43A and the second lid-side edge 43B that is recessed on the opposite side (X2 side) from the housing body 31. The lid-side recess 44 forms the second space S2. Also, in this case, the second lid-side edge 43B protrudes further toward the housing body 31 (X1 side) than the first lid-side edge 43A. The lid-side recess 44 is recessed further toward the opposite side (X2 side) from the housing body 31 than the first lid-side edge 43A.

[0045] Multiple grooves are formed in the main body side edge 33 and the lid side edge 43, each of which accommodates multiple wiring members 51 individually. Each groove has a size corresponding to the thickness of the wiring member 51 that it accommodates. The grooves that accommodate thicker wiring members 51 are formed to be larger than the grooves that accommodate thinner wiring members 51.

[0046] As such multiple grooves, multiple body side grooves 35 are formed on the body side edge 33, and multiple lid side grooves 45 are formed on the lid side edge 43. For example, the multiple body side grooves 35 and the multiple lid side grooves 45 are formed in a similar shape and arranged in opposite directions. The multiple body side grooves 35 have multiple first body side grooves 35A formed on the first body side edge 33A and multiple second body side grooves 35B formed on the second body side edge 33B. Similarly, the multiple lid side grooves 45 have multiple first lid side grooves 45A formed on the first body side edge 33A and multiple second lid side grooves 45B formed on the second lid side edge 43B.

[0047] The main body groove 35 may be formed to be the same size as or larger than half the circumference of the wiring member 51. Here, the main body groove 35 is formed to be larger than half the circumference of the wiring member 51. The part of the main body groove 35 located at the bottom of the groove is the main body housing portion 36, and the part located at the opening of the groove is the main body guide portion 37. The main body housing portion 36 of the first main body groove 35A is located closer to the lid 40 (X2 side) than the main body guide portion 37 of the second main body groove 35B. The main body groove 35 may be formed to cover half the circumference of the wiring member 51 and may not have a main body guide portion 37. In the X direction, the first main body edge portion 33A and the second main body edge portion 33B are separated by a distance of more than the depth of the main body groove 35. The main body groove 35 may be formed in a C shape or the like. The opening 31B of the groove may be smaller than the diameter of the wiring member 51 that fits inside it.

[0048] The lid groove 45 may be formed to be the same size as or larger than half the circumference of the wiring member 51. Here, the lid groove 45 is formed to be larger than half the circumference of the wiring member 51. The portion of the lid groove 45 located at the bottom of the groove is the lid-side housing portion 46, and the portion located at the opening of the groove is the lid-side guide portion 47. The lid-side housing portion 46 of the second lid groove 45B is located closer to the housing body 31 (X1 side) than the lid-side guide portion 47 of the first lid groove 45A. The lid groove 45 may be formed to cover half the circumference of the wiring member 51 and may not have a lid-side guide portion 47. In the X direction, the first lid edge portion 43A and the second lid edge portion 43B are separated by a distance greater than or equal to the depth of the body groove 35.

[0049] On the main body side edge 33, the portion between the multiple main body side grooves 35 is the main body side partition portion 38. On the lid side edge 43, the portion between the multiple lid side grooves 45 is the lid side partition portion 48. The main body side partition portion 38 and the lid side partition portion 48 separate the multiple wiring members 51 that are aligned in the Y direction. Here, since each of the main body side grooves 35 and the lid side grooves 45 is formed to be larger than half the circumference of the outer edge of the wiring member 51, the X2 side tip of the main body side partition portion 38 and the X1 side tip of the lid side partition portion 48 overlap in the Z direction.

[0050] The main body partition portion 38 has a first main body partition portion 38A formed on the first main body edge portion 33A and a second main body partition portion 38B formed on the second main body edge portion 33B. The lid partition portion 48 has a first lid partition portion 48A formed on the first lid edge portion 43A and a second lid partition portion 48B formed on the second lid edge portion 43B. The X2 side tip of the first main body partition portion 38A and the X1 side tip of the first lid partition portion 48A overlap in the Z direction. The X2 side tip of the second main body partition portion 38B and the X1 side tip of the second lid partition portion 48B overlap in the Z direction.

[0051] The main body side edge 33 and the lid side edge 43 are each formed of an elastic material. The elastic material is rubber or elastomer, for example. The elastic material may be EPDM (ethylene propylene rubber), for example.

[0052] The majority of the housing body 31, including the housing portion 31A, may be made of a resin material or metal material with higher rigidity than the elastic material. The majority of the lid 40, including the closing portion 41, may be made of a resin material or metal material with higher rigidity than the elastic material. The housing body 31 and the lid 40 may each be composed of a combination of a rigid member and an elastic member. The rigid member and the elastic member may be integrally molded by two-color molding or the like. The elastic member may be molded separately from the rigid member and attached to the rigid member.

[0053] In the housing body 31, the first body side edge 33A, the second body side edge 33B, and the portion connecting them (the bottom portion of the body side recess 34) may be a single elastic member. Alternatively, in the housing body 31, the first body side edge 33A and the second body side edge 33B may be separate elastic members.

[0054] In the lid 40, the first lid edge 43A, the second lid edge 43B, and the portion connecting them (the bottom portion of the lid recess 44) may be a single elastic member. Alternatively, the first lid edge 43A and the second lid edge 43B may be separate elastic members.

[0055] The electrical equipment 10 is, for example, placed in a vehicle. When the housing 30 is placed in the vehicle, the clamping portion 12 is formed on the lower surface of the housing 30 such that the extension direction of the plurality of wiring members 51 in the clamping portion 12 is aligned with the vertical direction. The electrical equipment 10 is positioned so that the Z direction is aligned with the vertical direction. The Z1 direction is the upper side, and the Z2 direction is the lower side.

[0056] The connector 54 may be located further back (towards X1) in the housing 31A than the main body side edge 33. As a result, as shown in Figure 6, the wiring member 51 extending from the connector 54 hangs down and is more likely to catch on the main body side edge 33.

[0057] <Effects, etc.> With the electrical device 10 configured as described above, the housing body 31 and the lid 40 form a clamping portion 12 by sandwiching the multiple wiring members 51 arranged in parallel directions. This reduces the gap between the wiring members 51 and the portion extending from the housing 30, thereby suppressing water from entering through this gap.

[0058] The electronic component 20 is, for example, a non-waterproof ECU. Non-waterproof ECUs are generally mounted in locations where they are not exposed to water. If a non-waterproof ECU is placed in a location where it may be exposed to water, it is necessary to prevent failure due to water exposure. As a countermeasure against water exposure, for example, it is conceivable to use a housing and connector with high waterproof performance. However, in this case, the mounting location may be limited, and the design for waterproofing may require additional time and effort, potentially increasing costs. Therefore, it is desirable to be able to provide simple waterproofing performance with as little additional cost as possible.

[0059] In this disclosure, a housing 30 sized to cover a non-waterproof ECU is created, and a configuration is provided within the housing 30 to prevent water from passing through the wire harness 50's penetration points, thereby achieving water ingress prevention easily and at low cost. Specifically, when a bundle of multiple wiring members 51 is passed through the housing 30, water may enter due to capillary action in the small gaps in the bundle or due to pressure changes through the gaps. In contrast, in this disclosure, multiple wiring members 51 of the wire harness 50 are placed in parallel at the penetration points of the wire harness 50 within the housing 30 and sandwiched between the housing body 31 and the lid 40, thereby sealing each wiring member 51 individually. This suppresses water ingress due to capillary action in the small gaps in the bundle or due to pressure changes through the gaps.

[0060] Furthermore, since the waterproof structure is achieved by sandwiching the wiring member 51 between the housing body 31 and the lid 40 of the housing 30, the waterproof structure can be created when the lid 40 is finally attached to the housing body 31. Specifically, as shown in Figure 6, with the electronic components 20 housed in the housing body 31 and the connector 22 and connector 54 connected, the other end of the wiring member 51 is positioned to pass near the side edge 33 of the housing body and extend to the outside of the housing body 31. In this state, when the lid 40 is moved in the direction of arrow A1 and attached to the housing body 31, the wiring member 51 can be sandwiched between the side edge 33 of the housing body and the side edge 43 of the lid, thereby creating a waterproof structure. This makes it possible to easily prevent water ingress at low cost.

[0061] Furthermore, by having a first clamping portion 12A and a second clamping portion 12B, the clamping portion 12 can have multiple locations with small gaps along the extending direction of the multiple wiring members 51, making it easier to suppress water from entering the inside of the housing 30.

[0062] Furthermore, in the clamping direction, the positions of the first clamping portion 12A and the second clamping portion 12B are different, and the multiple wiring members 51 are bent between the first clamping portion 12A and the second clamping portion 12B. As a result, water that enters the second clamping portion 12B from the outside of the housing 30 is less likely to reach the first clamping portion 12A.

[0063] Furthermore, the housing 30 has a first space S1, a second space S2, and a third space S3 between the first clamping portion 12A and the second clamping portion 12B. Normally, the wiring member 51 is positioned in the first space S1. By providing the second space S2 and the third space S3, if the portion of the wiring member 51 between the first clamping portion 12A and the second clamping portion 12B becomes long, the excess length can be moved into the second space S2 or the third space S3.

[0064] Furthermore, in the extending direction, the main body edge 33 of the housing body 31 and the lid edge 43 of the lid 40 are in different positions. This makes it easier to reduce the gap in the clamping portion 12 compared to the case where the main body edge 33 of the housing body 31 and the lid edge 43 of the lid 40 are in the same position along the extending direction of the multiple wiring members 51.

[0065] Furthermore, multiple grooves are formed in the main body edge 33 of the housing body 31 and the lid edge 43 of the lid 40, each of which accommodates multiple wiring members 51 individually. This makes it easier to reduce the gap in the clamping portion 12 compared to when there are no grooves.

[0066] Furthermore, both the main body side edge 33 and the lid side edge 43 are formed from an elastic material. This makes it easier to reduce the gap in the clamping portion 12 compared to when the main body side edge 33 and the lid side edge 43 are formed from a hard resin material or the like.

[0067] Furthermore, when the housing 30 is placed on the vehicle, the clamping portion 12 is located on the lower surface of the housing 30. In this case, water ingress into the housing 30 is expected to occur through splashing, capillary action, or water traveling along the wiring members 51 due to the pressure difference inside and outside the housing 30. The clamping portion 12 makes it easy to suppress these water ingress. The clamping portion 12 is formed so that the extension direction of the multiple wiring members 51 is aligned with the vertical direction.

[0068] [Note] Furthermore, the configurations described in each of the above embodiments and modifications can be combined as appropriate, as long as they do not contradict each other. [Explanation of Symbols]

[0069] 10 Electrical equipment 12 Clamping part 12A 1st clamping part 12B 2nd clamping part 20 Electronic Components 21 Circuit board 22 connectors 30 cabinets 31 Main unit 31A Storage Unit 31B opening 32 Mounting receiver 33 Main body side edge 33A 1st body side edge 33B 2nd body side edge 34 Recess on the main body side 35 Main body side groove 35A First main body side ditch 35B Second main body side ditch 36 Main unit side storage section 37 Main unit side guide part 38 Main body side partition 38A Partition section on the first main body side 38B Second main body side partition section 40 Lid 41 Occlusion 42 Mounting part 43 Lid side edge 43A 1st lid side edge 43B 2nd lid side edge 44 Recess on the lid side 45 Covered side groove 45A First Covered Gutter 45B Second Covered Gutter 46 Lid-side storage section 47 Lid-side guide section 48 Lid-side partition 48A First lid side partition section 48B Second lid side partition section 50 Wire Harness 51 Wiring components 52 core wires 53 Insulating coating 54, 55 Connectors 56. Bundle parts S space S1 1st space S2 2nd space S3 3rd space

Claims

1. A housing comprising a housing body having an opening, and a lid attached to the housing body to close the opening, The electronic components housed in the aforementioned enclosure body, A wire harness having one end connected to the electronic component inside the housing, with the middle portion passing between the housing body and the lid, and the other end extending outside the housing, Equipped with, The aforementioned wire harness includes a plurality of wiring members, The housing body and the lid form a clamping portion that sandwiches the plurality of wiring members. In the clamping portion, the plurality of wiring members are arranged in a line along a parallel direction perpendicular to the extending direction of the plurality of wiring members. The clamping direction of the clamping portion is perpendicular to the extending direction and the parallel direction, respectively, in the electrical equipment.

2. An electrical device according to claim 1, The clamping portion comprises a first clamping portion and a second clamping portion located on the other end side along the extending direction of the first clamping portion.

3. The electrical equipment according to claim 2, In the clamping direction, the position of the first clamping portion and the position of the second clamping portion are different. An electrical device in which the plurality of wiring members are bent between the first clamping portion and the second clamping portion.

4. The electrical equipment according to claim 3, The housing has a space between the first clamping portion and the second clamping portion. The electrical device comprises a first space located between the first clamping portion and the second clamping portion in the clamping direction, a second space located on the opposite side of the first clamping portion from the second clamping portion, and a third space located on the opposite side of the second clamping portion from the first clamping portion.

5. An electrical appliance according to any one of claims 1 to 4, The housing body has a side edge portion that contacts the plurality of wiring members from one side along the clamping direction, The lid has a lid edge that contacts the plurality of wiring members from the other side along the clamping direction, An electrical device in which the main body side edge and the lid side edge are located at different positions in the aforementioned extending direction.

6. An electrical appliance according to any one of claims 1 to 4, The housing body has a side edge portion that contacts the plurality of wiring members from one side along the clamping direction, The lid has a lid edge that contacts the plurality of wiring members from the other side along the clamping direction, An electrical device in which multiple grooves are formed on the side edge of the main body and the side edge of the lid, each of which accommodates the multiple wiring members individually.

7. An electrical appliance according to any one of claims 1 to 4, The housing body has a side edge portion that contacts the plurality of wiring members from one side along the clamping direction, The lid has a lid edge that contacts the plurality of wiring members from the other side along the clamping direction, An electrical device in which the main body side edge and the lid side edge are each formed of an elastic material.

8. The electrical equipment according to claim 4, The housing body has a side edge portion that contacts the plurality of wiring members from one side along the clamping direction, The lid has a lid edge that contacts the plurality of wiring members from the other side along the clamping direction, In the aforementioned extending direction, the main body side edge and the lid side edge are in different positions. An electrical device in which the main body side edge and the lid side edge are each formed of an elastic material, and a plurality of grooves are formed in each of the main body side edge and the lid side edge, each for which the plurality of wiring members are individually housed.

9. An electrical appliance according to any one of claims 1 to 4, An electrical device wherein, when the housing is placed on a vehicle, the clamping portion is formed on the lower surface of the housing such that the extending direction of the plurality of wiring members in the clamping portion is aligned with the vertical direction.

Citation Information

Patent Citations

  • Wire harness waterproof sheet, wire harness with waterproof sheet, and simple waterproof structure for wire harness

    JP2016081860A