Wiring board

Abstract

The panel (2) is attached to the automotive body (10) separating the automotive body (10) into an automotive interior and a forecabin. The wire harness (3) is arranged on the panel (2). Each terminal (35) provided with a bolt through hole (351) is attached to an end portion of a vehicle body ground wire (33). A bolt (4) passes through a bolt through-hole (21) of the panel (2) and a bolt through-hole (351) of the terminal (35) to attach the panel to the automobile body (10).

Description

Technical Field

[0001] The present invention relates to a wiring board. Background Art

[0002] Various electronic devices are mounted on the dashboard in front of the driver's and passenger seats in a car. Therefore, it is necessary to provide wiring harnesses (wiring) around the dashboard to connect these electronic devices. Furthermore, the dashboard is equipped with a reinforcing member called a "reinforcement member" that extends in the left-right direction. Conventional wiring harnesses connecting electronic devices are supported by the reinforcement member (Patent Document 1). Specifically, the reinforcement member supports the left-right main line of the wiring harness, while branch lines branching from the main line extend downward and connect to the electronic devices.

[0003] Reference List

[0004] Patent Literature

[0005] Patent Document 1: JP2019-119287A Summary of the Invention

[0006] Technical issues

[0007] However, since the wiring harness provided with a plurality of branch lines has a complex shape, it is necessary to manually assemble the wiring harness to the vehicle, which complicates the assembly work and poses a problem.

[0008] The present invention is proposed under the above circumstances, and its object is to provide a wiring board that facilitates the assembly of wiring near an instrument panel.

[0009] Technical Solution

[0010] In order to achieve the above object, the wiring board provided by the present invention has the following features.

[0011] The terminal block includes:

[0012] Panels attached to the body of an automobile that divide it into the interior and the front cabin; and

[0013] Wiring arranged on the panel.

[0014] Beneficial effects

[0015] According to the present invention, a wiring board that facilitates wiring assembly near an instrument panel can be provided.

[0016] The present invention has been briefly described above. Further details of the present invention can be understood by reading the following embodiments of the present invention (hereinafter referred to as “embodiments”) with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a diagram showing the configuration of a wiring board according to the first embodiment.

[0018] Figure 2 It shows Figure 1 This is a schematic cross-sectional view showing a state where the wiring board is attached to a vehicle body.

[0019] Figure 3 is a diagram showing the configuration of a wiring board according to a second embodiment.

[0020] Figure 4 It shows Figure 3 The diagram is a schematic cross-sectional view showing a state where the wiring board is attached to a vehicle body. DETAILED DESCRIPTION

[0021] Specific embodiments according to the present invention will be described below with reference to the accompanying drawings.

[0022] (First embodiment)

[0023] Will refer to Figure 1 The wiring board of the first embodiment is described. Figure 1 As shown, a wiring board 1 is attached to a car body 10 made of metal and includes a panel 2 that partitions the car body 10 into a car interior and a front cabin provided in front of the car interior, and a wiring harness 3 provided to the panel 2 as wiring.

[0024] Next, description will be given of the automobile body 10 to which the above-described terminal plate 1 is attached. The automobile body 10 to which the terminal plate 1 of the present embodiment is attached is formed by casting using a large mold.

[0025] The automobile body 10, formed by casting using a large mold, has high strength. Therefore, the partition between the vehicle interior and the front cabin does not need to be strong enough to maintain the shape of the automobile body. Accordingly, the automobile body 10 and the partition do not need to be integrally formed; a separate partition can be used.

[0026] In addition, in an electric vehicle without an engine, there is no internal combustion engine, so high temperature is hardly generated and noise is very low. Therefore, the partition in the vehicle body 10 can be made of not only metal but also resin.

[0027] For the reasons described above, in this embodiment, a terminal block formed by casting and using the resin panel 2 as a partition is exemplified and attached to the vehicle body 10 of an electric vehicle not equipped with an engine.

[0028] A vehicle body 10 includes a vehicle interior, which houses a driver's seat, passenger seats, and rear seats, and a front cabin located forward of the vehicle interior. In the vehicle body 10, there is no partition between the vehicle interior and the front cabin, but an opening 11 is provided. The resin panel 2 is formed to close the opening 11 between the vehicle interior and the front cabin.

[0029] The resin panel 2 is provided with bolt through holes (=first bolt through holes) 21 through which bolts 4 as metal (conductive) fixing portions for attaching the resin panel 2 to the automobile body 10 pass. A plurality of bolt through holes 21 are provided along the outer peripheral edge of the resin panel 2.

[0030] The wiring harness 3 is attached to the surface of the resin panel 2 on the interior side of the car. The wiring harness 3 is provided by bundling a plurality of electric wires with tape or the like. In the present embodiment, the wiring harness 3 includes a trunk line 31 extending in the left-right direction, a branch line 32 branching off from the trunk line 31 and extending downward, and a vehicle body grounding line 33 branching off from the trunk line 31. Connectors 34 for connecting electronic devices and the like on the instrument panel are attached to both ends in the left-right direction of the trunk line 31 and to the ends of the branch line 32. A terminal 35 provided with a bolt through hole (= second bolt through hole) 351 is attached to the end of the vehicle body grounding line 33, and a bolt 4 is passed through the bolt through hole 351. In Figure 1 In the example shown, the vehicle body grounding line 33 branches off from the trunk line 31 , but the present invention is not limited thereto. The vehicle body grounding line 33 may branch off from the branch line 32 .

[0031] The wire harness 3 is fixed to the resin panel 2 by a wire harness clamp 5. Figure 1 In the illustrated example, the wire harness 3 is fixed to the resin panel 2 by the wire harness clip 5 , but the present invention is not limited thereto, and the wire harness 3 may be fixed to the resin panel 2 by an adhesive or the like.

[0032] Next, the manufacturing process of the above-mentioned wiring board 1 and the attachment of the wiring board 1 to the automobile body 10 will be described. In this embodiment, a resin panel 2 is used as a wiring board, and electric wires are routed on the resin panel 2, and then tape is wrapped around the wiring board. The routed electric wires are bundled to form a wire harness 3, and then the wire harness 3 is fixed to the resin panel 2 using a wire harness clamp 5.

[0033] Next, the resin panel 2 to which the wire harness 3 is fixed is attached to the automobile body 10. Bolt through-holes 12, through which the bolts 4 are passed, are provided at the edge portion of the opening 11 provided between the automobile interior and the front cabin in the automobile body 10. The edge portion of the resin panel 2 overlaps with the edge portion of the opening 11 provided in the automobile body 10, and the bolt through-holes 12 provided in the automobile body 10 overlap with the bolt through-holes 21 provided in the resin panel 2. Furthermore, the bolt through-holes 351 of the terminal 35 provided at the end of the vehicle body ground wire 33 overlap with the bolt through-holes 21 provided in the surface of the resin panel 2 on the vehicle interior side.

[0034] Then, if Figure 2As shown, bolts 4 are passed through the bolt holes 351, 21, and 12 provided in the terminal 35, the resin panel 2, and the vehicle body 10, and are tightened using nuts 13. Accordingly, the vehicle body ground wire 33 is electrically connected to the vehicle body 10 via the bolts 4. In this embodiment, since two terminals 35 are provided, two of the five bolts 4 pass through the bolt holes 351 provided in the terminal 35. The remaining bolts 4 pass through the bolt holes 21 and 12 provided in the resin panel 2 and the vehicle body 10, without passing through the terminal 35, and are tightened using nuts 13.

[0035] According to the above embodiment, the wiring harness 3 can be assembled near the instrument panel simply by attaching the resin panel 2 on which the wiring harness 3 is mounted to close the opening between the vehicle interior and the front cabin. Since the resin panel 2 can be grasped by a robot, the wiring board 1 can also be automatically assembled to the vehicle body 10. Consequently, assembly of the wiring harness 3 near the instrument panel is facilitated.

[0036] According to the above embodiment, the automobile body 10 is a body of an electric vehicle and is formed by casting. Accordingly, the resin panel 2 can be used as a partition between the interior of the automobile and the front cabin.

[0037] According to the above embodiment, the vehicle body grounding wire 33 is grounded to the vehicle body 10 via the bolt 4. Accordingly, since the connection work between the vehicle body grounding wire 33 and the vehicle body 10 does not need to be performed separately from the attachment work of the resin panel 2, assembly work is further facilitated. Furthermore, there is no need to extend the vehicle body grounding wire 33 outside the resin panel 2 to connect it to the vehicle body 10.

[0038] According to the above embodiment, the bolts 4 are passed through the bolt through-holes 21 of the resin panel 2 and the bolt through-holes 351 of the terminals 35 attached to the ends of the vehicle body ground wires 33, and the resin panel 2 is attached to the vehicle body 10. Accordingly, when the resin panel 2 is attached by the bolts 4, the vehicle body ground wires 33 can be connected to the vehicle body 10 by the bolts 4 simply by passing the bolts 4 through the terminals 35 connected to the ends of the vehicle body ground wires 33.

[0039] (Second embodiment)

[0040] Next, we will refer to Figure 3 A wiring board 1B according to a second embodiment will be described. Figure 3 In the first embodiment described above, Figure 1 The same components in the wiring board 1 are marked with the same reference numerals, and their detailed descriptions are omitted. Figure 3 As shown, a wiring board 1 is attached to a car body 10 made of metal and includes a resin panel 2 made of resin that partitions the car body 10 into the car interior and the front cabin, and a plurality of printed wirings 3B printed on the resin panel 2 as a plurality of wirings.

[0041] Similar to the first embodiment, the automobile body 10 to which the wiring board 1B of the second embodiment is attached is the body of an electric vehicle and is formed by casting using a large mold. Since the resin panel 2 of the second embodiment is similar to the resin panel 2 of the first embodiment, its detailed description is omitted here.

[0042] A plurality of printed circuits 3B are formed by printing on the resin panel 2. In the present embodiment, a portion of the plurality of printed circuits 3B extends rightward from the left end of the resin panel 2 to the right end of the resin panel. A portion of the plurality of printed circuits 3B extends rightward from the left end of the resin panel 2, then bends downward, and extends to the lower end of the resin panel 2. In addition, a portion of the plurality of printed circuits 3B extends leftward from the right end of the resin panel 2, then bends downward, and extends to the lower end of the resin panel 2. Connectors 34 are connected to both ends of the plurality of printed circuits 3B. The connector 34 is implemented by, for example, an edge connector.

[0043] A portion of the plurality of printed wirings 3B serves as a vehicle body grounding wire 33B. The ends of the printed vehicle body grounding wires 33B are positioned at the edges of the bolt through-holes 21 of the resin panel 2. In this embodiment, since three vehicle body grounding wires 33B are provided, the ends of the vehicle body grounding wires 33B are positioned at the edges of three of the five bolt through-holes 21. The ends of the vehicle body grounding wires 33B are not positioned at the edges of the remaining bolt through-holes 21.

[0044] Next, the attachment of the above-mentioned terminal plate 1B to the automobile body 10 will be described. The edge portion of the resin panel 2 overlaps with the edge portion of the opening 11 provided in the automobile body 10, and the bolt through-hole 12 provided in the automobile body 10 overlaps with the bolt through-hole 21 provided in the resin panel 2. Then, as shown in FIG. Figure 4 As shown, bolts 4 are passed through bolt holes 21 provided in resin panel 2 and vehicle body 10 and secured with nuts 13 (not shown). Accordingly, since the end of vehicle body ground wire 33B is printed on the edge of bolt hole 21 in resin panel 2, vehicle body ground wire 33B is electrically connected to vehicle body 10 via bolts 4.

[0045] According to the above embodiment, printed circuit 3B can be assembled near the instrument panel simply by attaching resin panel 2, on which printed circuit 3B is printed and provided, to close the opening between the vehicle interior and the front cabin. Because resin panel 2 can be grasped by a robot, wiring board 1 can also be automatically assembled onto vehicle body 10. Consequently, assembly of printed circuit 3B near the instrument panel is facilitated.

[0046] According to the above embodiment, the bolts 4 are passed through the bolt through holes 21 of the resin panel 2, and the resin panel 2 is attached to the automobile body 10. Accordingly, only by attaching the resin panel 2 with the bolts 4, the vehicle body ground wire 33B can be connected to the automobile body 10 through the bolts 4.

[0047] The present invention is not limited to the above embodiments and can be modified and improved according to actual conditions. The materials, shapes, sizes, quantities, and layouts of the components described in the above embodiments can be freely selected as long as the purpose of the present invention can be achieved.

[0048] For example, the material of the panel that separates the interior of the car from the front cabin and on which the wire harness 3 and the printed wiring 3B are arranged is not limited to resin, but may be metal or carbon.

[0049] In the first embodiment, the resin panel 2 is used as the wiring board for the wire harness 3. However, the present invention is not limited thereto. The wire harness 3 may be formed using a wiring board different from the resin panel 2 and then mounted and fixed to the resin panel 2.

[0050] In the second embodiment described above, printed wiring 3B is printed only on the surface of the resin panel 2 facing the interior of the vehicle. However, the present invention is not limited to this. Printed wiring 3B may also be provided on the surface of the resin panel 2 facing the front cabin. One surface of the resin panel 2 may be a grounded surface or a grounded wiring surface. The resin panel 2 may be provided in multiple layers, and printed wiring 3B may be provided on both surfaces of each layer.

[0051] While the second embodiment described above uses an edge connector as connector 34, the present invention is not limited thereto. Connector 34 may be a surface mount connector. Furthermore, connector 34 may be a through-hole connector that penetrates resin panel 2, allowing electronic devices installed inside the vehicle and in the front cabin to be connected to the through-hole connector.

[0052] (Third embodiment)

[0053] Similar to the first embodiment, reference will be made to Figure 1 The third embodiment is a wiring board used in a car equipped with an engine. Figure 1 As shown, a wiring board 1 is attached to a metal automobile body 10 and includes a panel 2 that partitions the automobile body 10 into an automobile interior and a front compartment in front of the automobile interior, and a wiring harness 3 provided to the panel 2 as wiring.

[0054] The automobile body 10 to which the terminal block 1 of the third embodiment is attached is also formed by casting using a large mold. Since the automobile body is strong, it is not necessary to integrally form the automobile body and the bulkhead, but a separate bulkhead is used.

[0055] The automobile body 10 to which the wiring board 1 of the third embodiment is attached is an automobile equipped with an engine. In an engine-equipped automobile, the presence of the internal combustion engine easily causes high temperatures and loud noise. Therefore, for safety and comfort reasons, a metal partition is used between the interior and the front cabin of the automobile. Other configurations are similar to those of the first embodiment.

[0056] According to the first to third embodiments described above, the automobile body 10 is formed by casting, but the automobile body 10 is not limited to being formed by casting as long as the panel 2 can be used. For example, the automobile body 10 may be formed by forging.

[0057] Here, the features of the embodiments of the terminal block according to the present invention described above are briefly summarized and listed below [1] to [5]. [1]

[0059] A wiring board (1, 1B) comprises:

[0060] a panel (2) attached to a vehicle body (10) and dividing the vehicle body (10) into a vehicle interior and a front cabin; and

[0061] Wiring (3, 3B) arranged on the panel (2).

[0062] According to the above configuration [1], the wiring (3, 3B) can be assembled near the instrument panel by simply attaching the panel (2) on which the wiring (3, 3B) is arranged between the interior and the front cabin of the vehicle. Accordingly, the assembly work of the wiring (3, 3B) to the instrument panel is simplified. [2]

[0064] The terminal block (3, 3B) according to [1], wherein

[0065] The panel (2) is made of resin.

[0066] According to the above configuration [2], since the panel (2) is made of insulating resin, the wiring (3, 3B) is easy to arrange. [3]

[0068] The terminal block (1, 1B) according to [1] further comprises:

[0069] a conductive fixing portion (4) configured to attach the panel (2) to the vehicle body (10), wherein

[0070] The wiring (3, 3B) includes a vehicle body grounding wire (33, 33B), and

[0071] The vehicle body grounding wire (33, 33B) is grounded to the vehicle body (10) via the fixing portion (4).

[0072] According to the above configuration [3], since there is no need to perform a separate work of connecting the vehicle body grounding wire (33, 33B) to the vehicle body (10) in addition to the work of attaching the panel (2), the assembly work is further simplified. In addition, there is no need to extend the vehicle body grounding wire (33, 33B) to the outside of the panel (2) to connect to the vehicle body (10). [4]

[0074] According to the terminal block (1) of [3], where

[0075] The wiring (3, 3B) is realized by a wiring harness (3) that bundles a plurality of wires together.

[0076] The fixing portion (4) is realized by a bolt (4),

[0077] The panel (2) is provided with a first bolt through-hole (21), through which the bolt (4) passes.

[0078] The terminal (35) is attached to the end of the vehicle body grounding wire (33), and is provided with a second bolt through hole (351), through which the bolt (4) passes, and

[0079] At least one bolt (4) passes through the first bolt through-hole (21) of the panel (2) and the second bolt through-hole (351) of the terminal (35) to attach the panel (2) to the automobile body (10).

[0080] By the above configuration [4], when the panel (2) is attached by the bolt (4), the body ground wire (33) can be connected to the automobile body (10) by the bolt (4) simply by passing the bolt (4) through the terminal (35) connected to the end of the body ground wire (33). [5]

[0082] The terminal block (1B) according to [3], wherein

[0083] The wiring (3, 3B) is realized by a printed circuit (3B) printed on the panel (2),

[0084] The fixing part (4) is realized by a bolt (4),

[0085] The panel (2) is provided with a first bolt through-hole (21), through which the bolt (4) passes.

[0086] The end of the vehicle body grounding wire (33B) is printed on at least one edge portion of the first bolt through hole (21), and

[0087] The bolt (4) passes through the first bolt through-hole (21) of the panel (2) to attach the panel (2) to the automobile body (10).

[0088] According to the above configuration [5], the body ground wire (33B) can be connected to the automobile body (10) by the bolt (4) simply by attaching the panel (2).

[0089] While the invention has been described in detail and with reference to specific embodiments, it will be apparent to one skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

[0090] This application is based on the Japanese patent application (Japanese Patent Application No. 2023-033805) filed on March 6, 2023, the contents of which are incorporated herein by reference.

[0091] Industrial Applicability

[0092] According to the present invention, a wiring board that facilitates wiring assembly near an instrument panel can be provided. The present invention having such an effect is useful for a wiring board.

[0093] Reference Signs List

[0094] 1.1B: Terminal block

[0095] 2: Resin panel (panel)

[0096] 3: Wiring harness (wiring)

[0097] 3B: Printed circuit (wiring)

[0098] 4: Bolt (fixing part)

[0099] 10: Car body

[0100] 21: Bolt through hole (first bolt through hole)

[0101] 33, 33B: vehicle body ground wire

[0102] 35: Terminal

[0103] 351: Bolt through hole (second bolt through hole).

Claims

1. A wiring board comprising: a panel attached to a vehicle body and dividing the vehicle body into a vehicle interior and a front cabin; as well as Wiring is arranged on the panel.

2. The wiring board according to claim 1, wherein The panel is made of resin.

3. The patch panel according to claim 1, further comprising: a conductive fixing portion configured to attach the panel to the vehicle body, wherein The wiring includes a body ground wire, and The vehicle body grounding wire is grounded to the vehicle body through the fixing portion.

4. The wiring board according to claim 3, wherein The wiring is formed into a wiring harness in which multiple wires are bundled together. The fixing portion is formed as a bolt, The panel is provided with a first bolt through hole through which the bolt passes. A terminal provided with a second bolt through-hole through which the bolt passes is attached to an end portion of the vehicle body ground wire, and At least one of the bolts passes through the first bolt through-hole of the panel and the second bolt through-hole of the terminal to attach the panel to the automobile body.

5. The wiring board according to claim 3, wherein The wiring is formed as a printed circuit printed on the panel, The fixing part is realized by bolts, The panel is provided with a first bolt through-hole through which the bolt passes. The end portion of the vehicle body grounding wire is printed on at least one edge portion of the first bolt through hole, and The bolt passes through the first bolt through-hole of the panel to attach the panel to the automobile body.

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