Special-shaped automobile electronic wire harness assembly
By using shape memory alloy components and thermal expansion blocks in automotive electronic wiring harnesses, the problem of wiring harnesses being easily damaged in high-temperature environments has been solved, achieving automatic adjustment and extended lifespan of the wiring harnesses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI FAZHIYUAN ELECTRIC CO LTD
- Filing Date
- 2023-07-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing automotive electronic wiring harnesses have a shortened lifespan under high-temperature environments and are prone to damage due to overheating.
The use of irregularly shaped automotive electronic wiring harness components, along with the design of shape memory alloy parts and thermal expansion blocks, allows the wiring harness to automatically swing away from the vehicle body at high temperatures, reducing the risk of damage.
It improves the service life of electronic wire harnesses, reduces the risk of damage caused by high temperatures, and enhances the heat resistance and stability of wire harnesses.
Smart Images
Figure CN116946037B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of automotive parts technology and relates to a non-standard automotive electronic wiring harness assembly. Background Technology
[0002] Electronic wiring harnesses are the wiring components in automotive circuits that connect various electrical devices. They consist of insulating sheaths, terminals, wires, and insulating wrapping materials. Automotive electronic wiring harnesses are crucial components connecting various electrical and electronic devices in a vehicle. They transmit electrical signals between power supplies, switches, electrical appliances, and electronic devices, often referred to as nerve transmission and blood supply, and serve as the carrier for electrical signal control of the vehicle.
[0003] Patent CN210912290U discloses a novel automotive electronic handbrake wiring harness, including wires. The wires have a first wire, a second wire, a third wire, a fourth wire, a fifth wire, and a sixth wire. The first wire and the second wire are connected by a first injection molded part, the second wire and the third wire are connected by a second injection molded part, the third wire and the fourth wire are connected by a third injection molded part, the fourth wire and the fifth wire are connected by a fourth injection molded part, and the fifth wire and the sixth wire are connected by a rubber part.
[0004] Wiring harnesses are usually fixed to locations such as the car chassis, and to prevent them from shaking, they are typically kept as close to the chassis as possible. However, when a car is in motion, many areas will generate heat, especially when the car malfunctions, localized high temperatures can easily occur, raising the operating temperature of the electronic wiring harness and affecting its lifespan. Summary of the Invention
[0005] To improve the service life of electronic wiring harnesses, this application provides a non-standard automotive electronic wiring harness assembly.
[0006] The technical solution for the irregular-shaped automotive electronic wiring harness assembly provided in this application is as follows: A non-standard automotive electronic wiring harness assembly includes a U-shaped wiring harness with a connecting harness connected to its side. A connector is connected to the end of the connecting harness away from the U-shaped wiring harness. A wire clip for fixing the U-shaped wiring harness to the vehicle body is provided between the side of the U-shaped wiring harness and the connecting harness. A shape memory alloy component is provided along the length of the side of the U-shaped wiring harness. The shape memory alloy component can deform when heated, causing the side of the U-shaped wiring harness to swing away from the vehicle body.
[0007] By adopting the above technical solution, the wire clip is fixed to the vehicle body, and the portion between the U-shaped wire harness and the connecting wire harness is fixed to the wire clip. The connecting wire harness is then connected to the connector, thus realizing the installation of the electronic wire harness assembly. When the part of the vehicle body near the U-shaped wire harness heats up, the shape memory alloy component deforms under heat, causing the side of the U-shaped wire harness to swing away from the vehicle body. This reduces the risk of the U-shaped wire harness being damaged by heat, increases its service life, and improves the overall service life of the electronic wire harness.
[0008] Preferably, the side of the U-shaped wire harness is inclined relative to the vehicle body, and the distance between the end of the side closer to the wire clip and the vehicle body is greater than the distance between the end of the side farther from the wire clip and the vehicle body.
[0009] By adopting the above technical solution, the U-shaped wiring harness is tilted. When the car body temperature is normal, the U-shaped wiring harness is as close to the car body as possible, reducing the risk of interference to other parts due to car body shaking. When the car body temperature rises, the U-shaped wiring harness swings away from the car body, reducing the risk of being burned or deformed.
[0010] Preferably, a connecting tube is provided between the side of the U-shaped wire harness and the connecting wire harness, one end of the connecting wire harness is inserted into the connecting tube and connected to the side of the U-shaped wire harness, and the connecting tube is snapped into the wire clip.
[0011] By adopting the above technical solution and incorporating a connecting tube, the wear and tear on the sides of the U-shaped wire harness and the connecting wire harness caused by the wire clamp can be reduced.
[0012] Preferably, the cable clip includes a bracket that can be fixed to the vehicle body, the bracket having a slot, the opening of the slot being oriented away from the vehicle body, and the connecting tube being able to pass through the opening and be fitted into the slot.
[0013] By adopting the above technical solution, the connecting tube is embedded in the slot, thereby limiting the side of the U-shaped wire harness and the connecting wire harness by the wire clamp.
[0014] Preferably, the slot is slidably provided with a slider that can reciprocate along the depth direction of the slot. The side of the slider near the opening of the slot is provided with a receiving groove for accommodating the connecting pipe. The side of the slider near the bottom of the slot is connected to the bottom of the slot through a thermal expansion block.
[0015] By adopting the above technical solution, when the temperature near the wire clip rises, the thermal expansion block expands, pushing the slider to slide towards the opening, causing the connecting tube to move away from the car body. This causes the side of the U-shaped wire harness and the connecting wire harness to swing away from the car body, reducing the risk of the U-shaped wire harness and the connecting wire harness being burned. When the temperature near the wire clip decreases, the thermal expansion block returns to its initial state, causing the slider to slide away from the opening and return to its original position.
[0016] Preferably, the side of the bracket is provided with an elastic sheet, the fixed end of the elastic sheet is located at the end of the side of the bracket near the opening, and the suspended end of the elastic sheet extends toward the center of the opening.
[0017] By adopting the above technical solution, an elastic sheet is provided at the opening of the bracket, which can limit the connection tube. When the elastic sheet is subjected to a large external force, it can also allow the connection tube to move through elastic deformation, providing deformation space for the thermal expansion block.
[0018] Preferably, there are two elastic sheets, which correspond one-to-one with the two sides of the bracket, and the distance between the suspended ends of the two elastic sheets is less than the outer diameter of the connecting pipe.
[0019] By adopting the above technical solution and setting two elastic plates, the opening degree of the slot can vary to a greater extent, accommodating connecting pipes with a wider range of outer diameters.
[0020] Preferably, the slider has a top plate corresponding to the elastic sheet on the side near the opening. One end of the top plate is fixed to the slider. When the heated expansion block is in the recovery state, the other end of the top plate abuts against the side of the elastic sheet near the slider. The outer wall of the connecting pipe is in clearance fit with the elastic sheet.
[0021] By adopting the above technical solution, when the heated expansion block recovers, the outer wall of the connecting pipe and the elastic sheet are fitted with a gap, which reduces the wear caused by the elastic sheet squeezing the connecting pipe. After the heated expansion block expands due to heat, the top plate first lifts the elastic sheet, increasing the opening. The connecting pipe moves away from the car body with the slider, reducing the pressure of the elastic sheet on the connecting pipe.
[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. When the part of the car body near the U-shaped wiring harness gets hot, the shape memory alloy part can deform under heat, causing the side of the U-shaped wiring harness to swing away from the car body. This makes the entire U-shaped wiring harness swing away from the car body, reducing the risk of the U-shaped wiring harness being burned, increasing the service life of the U-shaped wiring harness, and increasing the overall service life of the electronic wiring harness. 2. When the temperature near the wire clip rises, the thermal expansion block expands, pushing the slider to slide towards the opening, causing the connecting tube to move away from the car body. This, in turn, causes the sides of the U-shaped wire harness and the connecting wire harness to swing away from the car body, reducing the risk of the U-shaped wire harness and the connecting wire harness being burned. Attached Figure Description
[0023] Figure 1 This is a perspective view of an embodiment of this application.
[0024] Figure 2 This is a cross-sectional view of an embodiment of this application.
[0025] Figure 3 yes Figure 1 Enlarged view of part A.
[0026] Explanation of reference numerals in the attached drawings: 1. Body; 2. U-shaped wiring harness; 21. Side; 22. Middle side; 3. Connecting wiring harness; 31. Cable; 4. Connector; 41. Slot; 5. Cable clip; 51. Bracket; 52. Slot; 53. Opening; 54. Slider; 55. Thermal expansion block; 56. Elastic sheet; 57. Top plate; 58. Receiving groove; 6. Shape memory alloy component; 61. Straight section; 62. Inclined section; 7. Connecting pipe. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0028] like Figure 1 , Figure 2 As shown, this irregular automotive electronic wiring harness assembly includes a U-shaped wiring harness 2, which has two sides 21 connected by a middle side 22. A connecting wiring harness 3 is connected to the side 21 of the U-shaped wiring harness 2, and a connector 4 is connected to the end of the connecting wiring harness 3 away from the U-shaped wiring harness 2.
[0029] In this embodiment, both sides 21 of the U-shaped wire harness 2 have connecting wire harnesses 3, and there are also two corresponding connectors 4, which are connected to the connecting wire harnesses 3. Specifically, the connecting wire harness 3 has a cable 31, and the connector 4 has a slot 41 that is connected to the cable 31, thereby realizing signal transmission.
[0030] The connector 4 can be fixed to the car body 1, and the fixing can be accomplished by means of screws, welding, etc.
[0031] like Figure 1 , Figure 2As shown, a wire clip 5 is provided between the side 21 of the U-shaped wire harness 2 and the connecting wire harness 3, which can be fixed to the car body 1. In this embodiment, there are two wire clips 5, which are provided between the two sides 21 of the U-shaped wire harness 2 and the two sections of the connecting wire harness 3. The wire clips 5 can be fixed to the car body 1 by screws or welding.
[0032] like Figure 2 , Figure 3 As shown, a shape memory alloy part 6 is provided on the side 21 of the U-shaped wiring harness 2 along its own length direction. When heated, the shape memory alloy part 6 can deform and drive the side 21 of the U-shaped wiring harness 2 to swing away from the vehicle body 1.
[0033] Preferably, the side 21 of the U-shaped wiring harness 2 is inclined relative to the body 1 of the car, the distance between the end of the side 21 closer to the wire clip 5 and the body 1 of the car is greater than the distance between the end of the side 21 further away from the wire clip 5 and the body 1 of the car, and the middle side 22 is relatively parallel to the body 1 of the car.
[0034] In this embodiment, the shape memory alloy part 6 is plate-shaped and located on the side 21 of the U-shaped wire harness 2, close to the side of the car body 1. The side of the shape memory alloy part 6 is connected to the outer wall of the U-shaped wire harness 2 or embedded in the side 21 of the U-shaped wire harness 2, so that the shape memory alloy part 6 can sense the temperature change at the corresponding position of the car body 1 more quickly.
[0035] In this embodiment, the shape memory alloy component 6 includes a straight segment 61 and an inclined segment 62 connected to each other. The straight segment 61 extends to the position of the wire clip 5, and the inclined segment 62 is located on the side 21 of the U-shaped bracket 51. When the shape memory alloy component 6 is heated, the straight segment 61 and the inclined segment 62 bend relative to each other to form a straight line, lifting the side 21.
[0036] At the same time, the shape memory alloy part 6 can also support the side 21 of the U-shaped wire harness 2 before deformation, so that the U-shaped wire harness 2, especially the middle side 22, maintains a certain distance from the car body 1, reducing interference caused by shaking.
[0037] like Figure 2 , Figure 3 As shown, a connecting tube 7 is provided between the side 21 of the U-shaped wire harness 2 and the connecting wire harness 3. One end of the connecting wire harness 3 is inserted into the connecting tube 7 and connected to the side 21 of the U-shaped wire harness 2. The connecting tube 7 is snapped into the wire clip 5.
[0038] In this embodiment, the connecting tube 7 and the connecting harness 3 are approximately coaxial. The connecting harness 3 is inserted into the connecting tube 7 and electrically connected to the side 21 of the U-shaped harness 2. The outer layer of the connecting tube 7 has a wear-resistant material.
[0039] like Figure 2 , Figure 3As shown, the cable clip 5 includes a bracket 51 that can be fixed to the car body 1. The bracket 51 has a slot 52. The opening 53 of the slot 52 is set in a direction away from the car body 1. The connecting tube 7 can pass through the opening 53 and be embedded in the slot 52.
[0040] In this embodiment, the bracket 51 is U-shaped, and the bottom of the bracket 51 is vertically fixed to the car body 1. The slot 52 is set along the height direction of the bracket 51.
[0041] like Figure 2 , Figure 3 As shown, the slot 52 is slidably provided with a slider 54 that can reciprocate along the depth direction of the slot 52, and a receiving groove 58 for accommodating the connecting tube 7 is provided on the side of the slider 54 near the opening 53 of the slot 52.
[0042] Preferably, the slider 54 is arc-shaped and protrudes towards the opening 53 of the slot 52, so that the outer wall of the connecting tube 7 can abut against the slider 54.
[0043] like Figure 2 , Figure 3 As shown, the side of the slider 54 near the bottom of the slot 52 is connected to the bottom of the slot 52 via a thermal expansion block 55. The thermal expansion block 55 can expand and contract along the height direction of the bracket 51, driving the slider 54 to move.
[0044] like Figure 2 , Figure 3 As shown, an elastic sheet 56 is provided on the side 21 of the bracket 51. The fixed end of the elastic sheet 56 is located at the end of the side 21 of the bracket 51 near the opening 53, and the suspended end of the elastic sheet 56 extends toward the center of the opening 53.
[0045] In this embodiment, there are two elastic sheets 56, which correspond one-to-one with the two sides of the bracket 51. The distance between the suspended ends of the two elastic sheets 56 is less than the outer diameter of the connecting pipe 7.
[0046] Alternatively, the elastic sheet 56 can be a single piece, with the fixed end of the elastic sheet 56 located on one side of the bracket 51 near the opening 53, and the suspended end of the elastic sheet 56 extending toward the center of the opening 53. The distance between the suspended end of the elastic sheet 56 and the other side of the bracket 51 is less than the outer diameter of the connecting pipe 7.
[0047] The limiting plate can be made of metal or elastic materials such as rubber.
[0048] like Figure 2 , Figure 3As shown, a top plate 57 corresponding to the elastic sheet 56 is provided on the side of the slider 54 near the opening 53. The top plate 57 is arranged along the height direction of the bracket 51. One end of the top plate 57 is fixed on the slider 54. When the thermal expansion block 55 is in the recovery state, the other end of the top plate 57 abuts against the side of the elastic sheet 56 near the slider 54. The outer wall of the connecting pipe 7 is in clearance fit with the elastic sheet 56.
[0049] In this embodiment, when there are two elastic sheets 56, there are also two top plates 57, and the two top plates 57 are spaced apart to form a receiving groove 58. When there is only one elastic sheet 56, there is also only one top plate 57, and the receiving groove 58 is separately formed on the side of the slider 54 near the opening 53.
[0050] The working principle of this embodiment is as follows: When the temperature of the car body 1 at the side 21 of the U-shaped bracket 51 rises, the shape memory alloy part 6 deforms, causing the side 21 of the U-shaped bracket 51 to swing away from the car body 1; when the temperature of the car body 1 drops, the shape memory alloy part 6 returns to its original position, causing the side 21 of the U-shaped bracket 51 to return to its original position. When the temperature of the car body 1 at the wire clip 5 rises, the thermal expansion block 55 extends, causing the slider 54 to move toward the opening 53 of the slot 52. The top plate 57 pushes open the elastic sheet 56, allowing the connecting tube 7 on the slider 54 to partially move outside the slot 52. The connecting harness 3 and the U-shaped harness 2 can also move away from the car body 1. When the temperature of the car body 1 decreases, the thermal expansion block 55 contracts, causing the slider to return to its original position. The elastic sheet 56 loses the effect of the top plate 57, squeezing the connecting tube 7 to move back to its initial position, allowing the connecting harness 3 and the U-shaped harness 2 to return to their initial positions.
[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A non-standard automotive electronic wiring harness assembly, characterized in that, The device includes a U-shaped wire harness (2), a connecting wire harness (3) connected to the side (21) of the U-shaped wire harness (2), a connector (4) connected to the end of the connecting wire harness (3) away from the U-shaped wire harness (2), a wire clip (5) that can be fixed to the car body (1) is provided between the side (21) of the U-shaped wire harness (2) and the connecting wire harness (3), and a shape memory alloy part (6) is provided on the side (21) of the U-shaped wire harness (2) along its own length direction. The shape memory alloy part (6) can deform when heated and drive the side (21) of the U-shaped wire harness (2) to swing away from the car body (1). The side (21) of the U-shaped wire harness (2) is inclined relative to the car body (1), and the distance between the end of the side (21) close to the wire clip (5) and the car body (1) is greater than the distance between the end of the side (21) away from the wire clip (5) and the car body (1). A connecting tube (7) is provided between the side (21) of the U-shaped wire harness (2) and the connecting wire harness (3). One end of the connecting wire harness (3) is inserted into the connecting tube (7) and connected to the side (21) of the U-shaped wire harness (2). The connecting tube (7) is snapped into the wire clip (5). The wire clip (5) includes a bracket (51) that can be fixed to the car body (1). The bracket (51) has a slot (52). The opening (53) of the slot (52) is set in a direction away from the car body (1). The connecting tube (7) can pass through the opening (53) and be embedded in the slot (52). The slot (52) is slidably provided with a slider (54) that can reciprocate along the depth direction of the slot (52). The slider (54) is provided with a receiving groove (58) for accommodating the connecting pipe (7) on the side near the opening (53) of the slot (52). The side of the slider (54) near the bottom of the groove of the slot (52) is connected to the bottom of the slot (52) through a heat-expanding block (55). The side (21) of the bracket (51) is provided with an elastic sheet (56), the fixed end of the elastic sheet (56) is located at the end of the side (21) of the bracket (51) near the opening (53), and the suspended end of the elastic sheet (56) extends toward the center of the opening (53). There are two elastic plates (56), which correspond one-to-one with the two sides of the bracket (51). The distance between the suspended ends of the two elastic plates (56) is less than the outer diameter of the connecting pipe (7). The slider (54) is provided with a top plate (57) corresponding one-to-one with the elastic plates (56) on the side near the opening (53). One end of the top plate (57) is fixed on the slider (54). When the heated expansion block (55) is in the recovery state, the other end of the top plate (57) abuts against the side of the elastic plate (56) near the slider (54). The outer wall of the connecting pipe (7) is in clearance fit with the elastic plate (56).