Automobile low-voltage damping wire harness

Abstract

The utility model discloses an automobile low-voltage damping wire harness, and belongs to the technical field of automobile low-voltage wire harnesses, the automobile low-voltage damping wire harness is characterized in that the automobile low-voltage damping wire harness comprises a wire harness body, two ends of the wire harness body are provided with connecting terminals, and the automobile low-voltage damping wire harness is characterized in that the middle position of the wire harness body is sleeved with a protection tube; a plurality of buffer cylinders distributed at equal intervals are arranged on the inner wall of the bottom of the protection pipe, pistons are slidably connected into the buffer cylinders, the pistons and the buffer cylinders are connected through buffer springs, buffer rods are arranged at the tops of the pistons, and buffer blocks are arranged at the ends, away from the pistons, of the buffer rods. The vibration force generated by the wire harness can be reduced, and the situation that the wire harness body and the connecting terminal are loosened is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of automobile low-voltage wiring harnesses, and more specifically to an automobile low-voltage shock-absorbing wiring harness. Background Art

[0002] In modern cars, low-voltage wiring harnesses are wires that connect various electrical devices inside the car. The electronic control system is closely related to the wiring harness. The low-voltage wiring harness is equivalent to the "nerves" and "blood vessels" of the car, and it is one of the important factors affecting the performance of the car. Since the car is always in a mechanical motion state when it is used, and bumps and vibrations are common, the seismic resistance of the low-voltage wiring harness is one of the key factors that determine its performance and service life.

[0003] At present, a Chinese patent with announcement number CN212195340 discloses a low-voltage shock-absorbing wiring harness for automobiles, including a wiring harness body and a shock-absorbing sleeve wrapped around the outer wall of the wiring harness body. The wiring harness body is composed of a wire harness, connecting terminals at both ends and connectors. The wire harness includes a trunk line and a branch line. The trunk line is composed of a main wire and a plurality of branch wires and is formed into a tree structure, connecting the terminals to both ends of the main wire.

[0004] In the prior art, the low-voltage shock-absorbing wiring harness similar to the above-mentioned one adopts a heat shrink sleeve inside and a sponge tape to wrap the outer wall for shock absorption. The heat shrink sleeve and the sponge tape can only provide a certain shock absorption effect. When the wiring harness is pulled during vibration, the wiring harness is easily torn, so there is room for improvement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a low-voltage shock-absorbing wiring harness for an automobile, which has the advantage of being able to reduce the vibration force generated by the wiring harness and avoid loosening of the wiring harness body and the connecting terminals.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A low-voltage shock-absorbing wiring harness for an automobile comprises a wiring harness body, both ends of the wiring harness body are provided with connection terminals, and a protective tube is sleeved in the middle of the wiring harness body;

[0008] The inner wall of the bottom of the protection tube is provided with a plurality of buffer cylinders distributed at equal distances, a piston is slidably connected inside the buffer cylinder, the piston and the buffer cylinder are connected by a buffer spring, a buffer rod is provided on the top of the piston, and a buffer block is provided at the end of the buffer rod away from the piston;

[0009] The top inner wall of the protection tube is provided with a plurality of support rods distributed at equal distances, and a guide wheel is provided at one end of the support rod away from the protection tube, and the wiring harness body is inserted between the buffer block and the guide wheel.

[0010] By adopting the above technical solution, when in use, the connecting terminals at both ends of the wiring harness body are respectively plugged into the car. When the car encounters a bumpy road during driving, the car body will vibrate, and the wiring harness body will also vibrate up and down. When the wiring harness body moves downward, the buffer spring will be compressed. The buffer spring uses its elastic force to buffer the wiring harness body, which can have a good buffering effect, reduce the vibration force generated by the wiring harness, and avoid loosening of the wiring harness body and the connecting terminals.

[0011] In a preferred embodiment: the end of the buffer block close to the wiring harness body is in an arc structure.

[0012] By adopting the above technical solution, the arc surface structure design can make the surface of the buffer block smoother, thereby avoiding the occurrence of rupture of the surface of the wire harness body during buffering.

[0013] In a preferred embodiment: a buffer pad is arranged on the top of the buffer block, and the buffer pad is made of rubber.

[0014] By adopting the above technical solution and providing the buffer pad, the wire harness body can be buffered, thereby further improving the buffering effect on the wire harness body.

[0015] In a preferred embodiment: the outside of the wiring harness body on both sides of the protective tube are sleeved with corrugated tubes, and the corrugated tubes are made of plastic.

[0016] By adopting the above technical solution, the arrangement of the corrugated tube can produce a certain deformation when the wire harness body is subjected to tension, thereby increasing the length of a part of the wire harness body and improving the tensile strength of the wire harness body.

[0017] In a preferred embodiment: a buffer shell is provided on the outer wall of the wire harness body close to one end of the corrugated tube, the inner wall of the buffer shell is rotatably connected to a buffer wheel via a torsion spring, and the wire harness body is wound around the surface of the buffer wheel.

[0018] By adopting the above technical solution, when the wire harness body vibrates, the wire harness body will be subjected to a certain pulling force. At this time, the torsion spring will play a buffering role on the wire harness body, which can greatly reduce the pulling force on the wire harness body and increase the service life of the wire harness body.

[0019] In a preferred embodiment: the inner wall of the buffer shell located around the buffer wheel is provided with a plurality of equidistantly distributed limiting wheels in an annular manner.

[0020] By adopting the above technical solution and setting the limiting wheel, the movement of the wiring harness body can be guided to avoid the wiring harness body from becoming loose.

[0021] In a preferred embodiment: a buffer sleeve is sleeved on the outer wall of the wiring harness body close to the connecting terminal, and the interior of the buffer sleeve is filled with a buffer sponge.

[0022] By adopting the above technical solution and setting the buffer sleeve, the joint between the wiring harness body and the connecting terminal can be buffered to avoid damage to the joint caused by excessive external vibration.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] 1. When in use, plug the connection terminals at both ends of the wiring harness body into the car respectively. When the car is driving and encounters a bumpy road section, the car body will vibrate, and the wiring harness body will also vibrate up and down. When the wiring harness body moves downward, it will compress the buffer spring. The buffer spring uses its elastic force to buffer the wiring harness body, which can play a good buffering effect, and it is convenient to minimize the vibration force generated by the wiring harness and avoid the loosening of the connection terminal.

[0025] 2. The surface of the buffer block with an arc structure at one end is relatively smooth, which avoids the occurrence of rupture of the skin of the wire harness body during buffering; the buffer pad can buffer the wire harness body, further improving the buffering effect of the wire harness body;

[0026] 3. When the wire harness body vibrates, the wire harness body will be subjected to a certain pulling force. At this time, the torsion spring will play a buffering role on the wire harness body, which can greatly reduce the pulling force on the wire harness body and increase the service life of the wire harness body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0028] Figure 2 It is a schematic cross-sectional view of the present embodiment;

[0029] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Explanation of the accompanying drawings: 1. Wire harness body; 2. Connecting terminal; 3. Protective tube; 4. Buffer cylinder; 5. Piston; 6. Buffer spring; 7. Buffer block; 8. Support rod; 9. Guide wheel; 10. Buffer pad; 11. Bellows; 12. Buffer shell; 13. Torsion spring; 14. Buffer wheel; 15. Limiting wheel; 16. Buffer sleeve. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure.

[0032] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0033] A low-voltage shock-absorbing harness for automobiles, such as Figure 1-3 As shown, it includes a wiring harness body 1, both ends of the wiring harness body 1 are provided with connection terminals 2, and the middle position of the wiring harness body 1 is sleeved with a protective tube 3;

[0034] The bottom inner wall of the protection tube 3 is provided with a plurality of buffer cylinders 4 distributed at equal distances, the interior of the buffer cylinder 4 is slidably connected with a piston 5, the piston 5 and the buffer cylinder 4 are connected by a buffer spring 6, a buffer rod is provided on the top of the piston 5, and a buffer block 7 is provided at the end of the buffer rod away from the piston 5.

[0035] The top inner wall of the protection tube 3 is provided with a plurality of support rods 8 distributed at equal distances. A guide wheel 9 is provided at one end of the support rod 8 away from the protection tube 3 . The wiring harness body 1 is inserted between the buffer block 7 and the guide wheel 9 .

[0036] In one specific embodiment, Figure 2 As shown, the outside of the wire harness body 1 on both sides of the protective tube 3 is sleeved with a corrugated tube 11, which is made of plastic. The corrugated tube 11 can produce a certain deformation when the wire harness body 1 is subjected to tension, thereby increasing the length of a part of the wire harness body 1 and improving the tensile strength of the wire harness body 1.

[0037] On the basis of the above embodiment, a buffer shell 12 is provided on the outer wall of the wiring harness body 1 near one end of the corrugated tube 11, and the inner wall of the buffer shell 12 is rotatably connected to a buffer wheel 14 through a torsion spring 13. The wiring harness body 1 is wound around the surface of the buffer wheel 14. When the wiring harness body 1 vibrates, the wiring harness body 1 will be subjected to a part of the pulling force. At this time, the torsion spring 13 will play a buffering role on the wiring harness body 1, which can greatly reduce the pulling force on the wiring harness body 1 and improve the service life of the wiring harness body 1.

[0038] It is worth mentioning that the inner wall of the buffer shell 12 around the buffer wheel 14 is provided with a plurality of equidistantly distributed limiting wheels 15, through which the limiting wheels 15 can guide the movement of the wire harness body 1 to avoid the wire harness body 1 from becoming loose.

[0039] In one specific embodiment, Figure 3 As shown, the end of the buffer block 7 close to the wire harness body 1 is in an arc structure, and the surface of the buffer block 7 with an arc structure at one end is relatively smooth, thereby avoiding the occurrence of rupture of the surface of the wire harness body 1 during buffering.

[0040] It should be noted that a buffer pad 10 is provided on the top of the buffer block 7 . The buffer pad 10 is made of rubber. The buffer pad 10 can buffer the wire harness body 1 , further improving the buffering effect on the wire harness body 1 .

[0041] A buffer sleeve 16 is sleeved on the outer wall of the wiring harness body 1 near the connecting terminal 2, and the interior of the buffer sleeve 16 is filled with buffer sponge. The buffer sleeve 16 can buffer the joint between the wiring harness body 1 and the connecting terminal 2 to avoid damage to the joint caused by excessive external vibration.

[0042] The working process and beneficial effects of the utility model are as follows:

[0043] When in use, the connecting terminals 2 at both ends of the wiring harness body 1 are respectively plugged into the car. When the car encounters a bumpy road during driving, the car body will vibrate, and the wiring harness body 1 will also vibrate up and down. When the wiring harness body 1 moves downward, the buffer spring 6 will be compressed. The buffer spring 6 uses its elastic force to buffer the wiring harness body 1, which can have a good buffering effect, reduce the vibration force generated by the wiring harness, and avoid the wiring harness body 1 and the connecting terminal 2 from loosening.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-voltage shock-absorbing wiring harness for an automobile, comprising a wiring harness body (1), both ends of the wiring harness body (1) being provided with connection terminals (2), characterized in that: A protective tube (3) is sleeved at the middle position of the wiring harness body (1); The inner wall of the bottom of the protection tube (3) is provided with a plurality of buffer cylinders (4) distributed at equal distances, the interior of the buffer cylinder (4) is slidably connected with a piston (5), the piston (5) and the buffer cylinder (4) are connected by a buffer spring (6), a buffer rod is provided on the top of the piston (5), and a buffer block (7) is provided at the end of the buffer rod away from the piston (5); The top inner wall of the protection tube (3) is provided with a plurality of support rods (8) distributed at equal distances, and a guide wheel (9) is provided at one end of the support rod (8) away from the protection tube (3), and the wiring harness body (1) is inserted between the buffer block (7) and the guide wheel (9).

2. The low-voltage shock-absorbing wiring harness for automobile according to claim 1, characterized in that: The end of the buffer block (7) close to the wiring harness body (1) is in a curved surface structure.

3. The low-voltage shock-absorbing wiring harness for automobile according to claim 2, characterized in that: A buffer pad (10) is arranged on the top of the buffer block (7), and the buffer pad (10) is made of rubber material.

4. The low-voltage shock-absorbing wiring harness for automobile according to claim 1, characterized in that: The outside of the wiring harness body (1) located on both sides of the protection tube (3) is sleeved with a corrugated tube (11), and the corrugated tube (11) is made of plastic material.

5. The low-voltage shock-absorbing wiring harness for automobile according to claim 4, characterized in that: A buffer shell (12) is provided on the outer wall of the wire harness body (1) close to one end of the corrugated tube (11); the inner wall of the buffer shell (12) is rotatably connected to a buffer wheel (14) via a torsion spring (13); and the wire harness body (1) is wound around the surface of the buffer wheel (14).

6. The low-voltage shock-absorbing wiring harness for automobile according to claim 5, characterized in that: The inner wall of the buffer shell (12) around the buffer wheel (14) is provided with a plurality of equidistantly distributed limiting wheels (15).

7. A low-voltage shock-absorbing wiring harness for automobile according to any one of claims 1 to 6, characterized in that: A buffer sleeve (16) is sleeved on the outer wall of the wiring harness body (1) close to the connecting terminal (2), and the interior of the buffer sleeve (16) is filled with a buffer sponge.

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