Connection structure

Abstract

Provided is technology whereby the work of connecting a plurality of on-vehicle devices to an electric connection box can be simplified. A connection structure (20) connects a plurality of on-vehicle devices (11) to an electrical connection box (10) mounted in a vehicle. The connection structure (20) has a substrate (21) and a plurality of wiring parts (22) fixed to the substrate (21). The plurality of wiring parts (22) connect each of the on-vehicle devices (11) to the electric connection box (10).

Description

Connection Structure

[0001] The present disclosure relates to a connection structure.

[0002] Patent Document 1 discloses a power supply system for a vehicle. The power supply system includes a battery pack and an electronics module connected to the battery pack. The electronics module is electrically connected to a PCU, a quick charger, a normal charger, an outlet, low-voltage equipment, and high-voltage equipment.

[0003] Japanese Patent Application Laid-Open No. 2022-120744

[0004] In this type of configuration, when connecting each vehicle-mounted device to an electrical junction box such as an electronic device module using covered electric wires, the wiring connection work tends to become complicated.

[0005] An object of the present disclosure is to provide a technique that can simplify the task of connecting multiple in-vehicle devices to an electrical junction box.

[0006] The connection structure disclosed herein is a connection structure that connects multiple on-board devices to an electrical junction box mounted on a vehicle, and includes a base material and multiple wiring portions fixed to the base material, and the multiple wiring portions connect each of the on-board devices to the electrical junction box.

[0007] According to the technology of the present disclosure, the task of connecting a plurality of in-vehicle devices to an electrical junction box can be simplified.

[0008] Fig. 1 is a plan view showing a state before a connection structure of a first embodiment is connected to an electrical junction box and an on-board device. Fig. 2 is a plan view showing a state when the connection structure of the first embodiment is connected to an electrical junction box and an on-board device. Fig. 3 is a cross-sectional view taken along line A-A in Fig. 2. Fig. 4 is a plan view showing a state before a connection structure of a second embodiment is connected to an electrical junction box and an on-board device. Fig. 5 is a plan view showing a state when the connection structure of the second embodiment is connected to an electrical junction box and an on-board device.

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

[0010] [1] A connection structure for connecting a plurality of on-board devices to an electrical junction box mounted on a vehicle, the connection structure comprising a base material and a plurality of wiring portions fixed to the base material, the plurality of wiring portions connecting each of the on-board devices to the electrical junction box.

[0011] In the connection structure, the wiring portion connecting each on-board device to the electrical junction box is fixed to the base material in advance. Therefore, a worker can simply place the electrical junction box and each on-board device in their predetermined positions and then install the connection structure to position the wiring portion in a position where it can be connected to the electrical junction box and each on-board device. In other words, the connection structure simplifies the process of connecting multiple on-board devices to the electrical junction box.

[0012] [2] The connection structure according to [1], wherein the substrate has insulating properties and insulates the wiring portions from each other.

[0013] The connection structure can also insulate the wiring portions from each other using the substrate.

[0014] [3] The connection structure according to [2], wherein each of the wiring portions is formed by a bus bar, and at least a portion of each of the bus bars is entirely embedded in the base material.

[0015] In the connection structure, the entire periphery of at least a portion of each bus bar can be insulated by the substrate 21 .

[0016] [4] The connection structure according to [3], wherein the bus bar has a protruding portion that protrudes outside the base material, and a bolt insertion hole is formed in the protruding portion.

[0017] According to the above-described connection structure, a worker can fix the protruding portion to the electrical junction box or the on-vehicle device using a bolt.

[0018] [5] The connection structure according to [3], wherein a bolt insertion hole is formed penetrating the base material and the bus bar.

[0019] According to the above-described connection structure, the insulation around the bolt insertion hole can be improved.

[0020] 1 and 2 disclose an in-vehicle system 1 according to a first embodiment. The in-vehicle system 1 is a system mounted on a vehicle. The in-vehicle system 1 includes an electrical junction box 10 and a plurality of in-vehicle devices 11. The plurality of in-vehicle devices 11 includes an in-vehicle battery 12, an inverter 13, and a high-voltage auxiliary device 14. Each of the in-vehicle devices 11 is electrically connected to the electrical junction box 10. Power from the in-vehicle battery 12 is supplied to the inverter 13 and the high-voltage auxiliary device 14 via the electrical junction box 10.

[0021] The in-vehicle system 1 includes a connection structure 20. The connection structure 20 connects a plurality of in-vehicle devices 11 to the electrical junction box 10. The connection structure 20 has a base material 21 and a plurality of wiring portions 22 fixed to the base material 21. The base material 21 has insulating properties. The base material 21 is made of, for example, resin. The base material 21 insulates the wiring portions 22 from one another.

[0022] The plurality of wiring portions 22 connect the respective in-vehicle devices 11 to the electrical junction box 10. Each wiring portion 22 is formed by a bus bar 23. As shown in Fig. 3 , at least a portion of each bus bar 23 is entirely embedded in the base material 21. This provides insulation between the wiring portions 22. Note that Figs. 1 and 2 omit the specific shape of the portion of the bus bar 23 embedded in the base material 21.

[0023] As shown in FIG. 1 , the bus bar 23 has a protruding portion 24 that protrudes outside the base material 21. A bolt insertion hole 25 is formed in the protruding portion 24. The bolt insertion hole 25 penetrates in the vertical direction. The electrical junction box 10 is provided with a bolt fastening portion 10A. The bolt fastening portion 10A is provided on an upper portion of the electrical junction box 10. Each on-board device 11 is provided with a bolt fastening portion 11A. The bolt fastening portion 11A is provided on an upper portion of the on-board device 11. The connection structure 20 is placed on top of the electrical junction box 10 and the on-board device 11. The connection structure 20 is installed between the electrical junction box 10 and the on-board device 11. A bolt 80 is inserted into the bolt insertion hole 25 and fixed to the bolt fastening portions 10A, 11A. In other words, each protruding portion 24 is fixed to the electrical junction box 10 and each on-board device 11 using the bolt 80.

[0024] In this connection structure 20, the wiring portion 22 that connects each on-board device 11 to the electrical junction box 10 is fixed in advance to the base material 21. Therefore, a worker can position the wiring portion 22 in a position where it can be connected to the electrical junction box 10 and each on-board device 11 simply by placing the electrical junction box 10 and each on-board device 11 in predetermined positions and then installing the connection structure 20. In other words, the connection structure 20 can simplify the work of connecting multiple on-board devices 11 to the electrical junction box 10.

[0025] Furthermore, connection structure 20 can also insulate wiring portions 22 from each other using substrate 21. Connection structure 20 can insulate the entire periphery of at least a portion of each bus bar 23 using substrate 21. According to connection structure 20, a worker can fix protrusion 24 to electrical junction box 10 or on-vehicle device 11 using bolt 80.

[0026] 2. Second Embodiment In the second embodiment, a configuration will be described in which the bus bar described in the first embodiment does not have a protruding portion. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0027] 4 and 5 show an in-vehicle system 201 according to a second embodiment. The in-vehicle system 201 is a system mounted on a vehicle. The in-vehicle system 201 includes an electric junction box 10 and a plurality of in-vehicle devices 11.

[0028] The in-vehicle system 201 includes a connection structure 220. The connection structure 220 connects a plurality of in-vehicle devices 11 to the electrical junction box 10. The connection structure 220 has a base material 221 and a plurality of wiring portions 222 fixed to the base material 221. The base material 221 has insulating properties. The base material 221 is made of, for example, resin. The base material 221 insulates the wiring portions 222 from one another.

[0029] The plurality of wiring portions 222 connect the respective in-vehicle devices 11 to the electrical junction box 10. Each wiring portion 222 is formed by a bus bar 223. As in the first embodiment, at least a portion of each bus bar 223 is embedded in the base material 221 along its entire periphery. This provides insulation between the wiring portions 222.

[0030] As shown in Fig. 4, the connection structure 220 has bolt insertion holes 225 formed therein, which penetrate the base material 221 and the bus bars 223. The bolt insertion holes 225 penetrate in the vertical direction. The connection structure 220 is placed on top of the electric junction box 10 and the on-board device 11. The connection structure 220 is installed between the electric junction box 10 and the on-board device 11. The bolts 80 are inserted through the bolt insertion holes 225 and fixed to the bolt fastening portions 10A, 11A. In other words, each bus bar 223 is fixed to the electric junction box 10 and each on-board device 11 using the bolts 80.

[0031] The connection structure 220 can improve the insulation around the bolt insertion hole 225 .

[0032] <Other Embodiments> The present disclosure is not limited to the embodiments described above and in the drawings. For example, any combination of features of the above-described or below-described embodiments is possible within a range that does not contradict. Furthermore, any feature of the above-described or below-described embodiments may be omitted unless explicitly stated as essential. Furthermore, the above-described embodiments may be modified as follows.

[0033] (1) In the first embodiment, the wiring portion is embedded in the substrate, but the wiring portion does not have to be embedded in the substrate. For example, the wiring portion may be fixed to the surface of the substrate. (2) The positional relationship between the connection structure, the electrical junction box, and the on-board device is not limited to the configuration of the first embodiment. For example, the connection structure may be provided with a bolt fastening portion, and the electrical junction box may be formed with a bolt insertion hole that passes through it vertically. Then, the electrical junction box may be placed on top of the connection structure, and bolts may be inserted into the bolt insertion holes of the electrical junction box and fixed to the bolt fastening portion of the connection structure.

[0034] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0035] DESCRIPTION OF SYMBOLS 1...In-vehicle system 10...Electrical connection box 10A...Bolt fastening portion 11...In-vehicle device 11A...Bolt fastening portion 12...In-vehicle battery 13...Inverter 14...High-voltage auxiliary device 20...Connection structure 21...Substrate 22...Wiring portion 23...Bus bar 24...Protrusion 25...Bolt insertion hole 80...Bolt 201...In-vehicle system 220...Connection structure 221...Substrate 222...Wiring portion 223...Bus bar 225...Bolt insertion hole

Claims

1. A connection structure for connecting a plurality of on-board devices to an electrical junction box mounted on a vehicle, the connection structure comprising: a base material; and a plurality of wiring portions fixed to the base material, the plurality of wiring portions connecting each of the on-board devices to the electrical junction box.

2. The connection structure according to claim 1, wherein the substrate has insulating properties and provides insulation between the wiring portions.

3. A connection structure according to claim 2, wherein each of the wiring portions is constituted by a bus bar, and at least a portion of each of the bus bars is entirely embedded in the base material.

4. The connection structure according to claim 3, wherein the bus bar has a protruding portion that protrudes outside the base material, and a bolt insertion hole is formed in the protruding portion.

5. The connection structure according to claim 3, wherein a bolt insertion hole is formed through the base material and the bus bar.

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