A wire harness protection structure for a headrest support rod, a headrest, and a vehicle

Abstract

The utility model belongs to the field of vehicle accessories provides a wire harness protection structure for headrest support rod, headrest and vehicle, and wire harness protection structure includes: protective sleeve, is provided with the installation hole for wire harness to pass through on headrest support rod, and protective sleeve is fixedly installed on headrest support rod, protective sleeve includes abutting portion, and abutting portion includes: outside wall, inner side wall, abutting portion forms the isolation structure between wire harness and installation hole, and the surrounding range of inner side wall covers part or all of the circumference of wire harness. Compared with prior art, the utility model sets up protective sleeve in the installation hole of headrest support rod, utilizes the outside wall of its abutting portion and installation hole closely and simultaneously, and inner side wall at least part surrounds wire harness and contacts with the circumference of wire harness, thereby forms the isolation structure between installation hole and wire harness, effectively avoids wire harness directly and sharp hole wall of metal support rod contact, prevents wire harness and is damaged because of friction, and then improves the service life of wire harness and the stability of electrical connection.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle accessories, specifically relating to a wiring harness protection structure for a headrest support rod, a headrest, and a vehicle. Background Technology

[0002] With the continuous improvement of automotive intelligence and comfort features, more and more car seats are equipped with headrests with electrical functions, such as headrests that integrate heating, massage, audio, or active safety functions. These functions are usually realized through electronic components set inside the headrest, and the power supply and signal transmission of the electronic components rely on the wiring harness structure passing through the headrest support.

[0003] In existing technology, wiring harnesses are typically routed from the main structure of the car seat, pass through mounting holes on the headrest support, and then connect to the electronic module inside the headrest. However, the following technical problems exist in actual manufacturing and use:

[0004] Since headrest support rods are typically made of metal, the mounting holes used for wiring harnesses are difficult to chamfer and deburr during manufacturing, especially when the internal structure of the support rod is limited or the mounting holes are in concealed locations. Even when manual deburring is performed on some support rods, it is difficult to ensure consistent surface quality of the hole walls, resulting in burrs or sharp edges on the hole walls.

[0005] During vehicle use, headrests typically need to be height-adjusted according to the passenger's height or sitting posture, or they may shift relative to the passenger due to bumps or vibrations while the vehicle is in motion. This dynamic adjustment or external vibration can cause the wiring harness to move relative to the mounting holes on the headrest support, resulting in continuous friction between the wiring harness sheath and the wall of the mounting hole.

[0006] Because the walls of the mounting holes have burrs or are not chamfered, the wire harness is easily scratched during repeated friction. In severe cases, it may even lead to damage to the outer sheath of the wire harness and exposure of the internal wires, which may cause electrical faults such as short circuits and open circuits, affecting the normal use of the electronic functions inside the headrest and even posing safety hazards.

[0007] In addition, once the wiring harness is damaged, the entire headrest or support rod assembly usually needs to be replaced, which is costly and complicated to repair, causing inconvenience to users.

[0008] Therefore, there is an urgent need to provide a wire harness protection structure that is structurally sound, easy to install, and provides good protection, in order to solve the problem of wire harness wear caused by the sharp edges of the headrest support rod mounting holes in the existing technology, and to improve the reliability and service life of the headrest's electrical functions. Utility Model Content

[0009] The technical problem to be solved by this utility model is to provide a wire harness protection structure for a headrest support rod, a headrest, and a vehicle, in light of the current state of the technology.

[0010] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a wire harness protection structure for a headrest support rod is proposed to protect the wire harness passing through the headrest support rod, the wire harness protection structure comprising:

[0011] A protective cover is provided on the headrest support rod, which has mounting holes for the wiring harness to pass through. The protective cover is fixedly installed on the headrest support rod.

[0012] The protective sleeve includes an abutment portion, the abutment portion comprising: an outer sidewall that abuts against the sidewall of the mounting hole; and an inner sidewall that at least partially surrounds the wire harness and contacts the outer periphery of the wire harness passing through the mounting hole;

[0013] The abutment portion forms an isolation structure between the wire harness and the mounting hole, and the circumferential range of the inner sidewall covers part or all of the outer periphery of the wire harness.

[0014] In the aforementioned wiring harness protection structure for a headrest support rod, the abutment portion is an annular structure adapted to the shape of the mounting hole.

[0015] In the aforementioned wiring harness protection structure for a headrest support rod, the abutment portion is in a C-shaped semi-enclosed shape, and the opening of the abutment portion faces the end of the headrest support rod away from the car seat.

[0016] In the aforementioned wiring harness protection structure for a headrest support rod, the protective sleeve further includes a protective hole, wherein the side wall of the protective hole near the headrest support rod away from the car seat makes movable contact with the outer peripheral wall of the wiring harness passing through the mounting hole.

[0017] In the aforementioned wiring harness protection structure for a headrest support rod, the protective hole is projected along the direction toward the mounting hole, and its projection range is entirely within the mounting hole.

[0018] In the aforementioned wiring harness protection structure for a headrest support rod, the abutting portion extends from the inner wall of the protection hole toward the mounting hole.

[0019] In the aforementioned wiring harness protection structure for a headrest support rod, the protective sleeve further includes a sleeve body. The sleeve body has a C-shaped structure and is snapped onto the outer side wall of the headrest support rod. The inner side wall of the sleeve body covers an area smaller than the diameter of the headrest support rod, for fixing the protective sleeve onto the headrest support rod.

[0020] In the aforementioned wiring harness protection structure for a headrest support rod, the protective sleeve is made of plastic.

[0021] This utility model solves the above-mentioned technical problems by providing a headrest, including the above-mentioned wire harness protection structure for the headrest support rod.

[0022] This utility model solves the above-mentioned technical problems and also proposes a vehicle that includes the aforementioned headrest.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) By setting a protective sleeve in the mounting hole of the headrest support rod, the outer side wall of its abutting part fits tightly with the mounting hole, while the inner side wall at least partially surrounds the wire harness and contacts the outer periphery of the wire harness, thereby forming an isolation structure between the mounting hole and the wire harness, effectively preventing the wire harness from directly contacting the sharp hole wall of the metal support rod, preventing the wire harness from being damaged by friction, and thus improving the service life of the wire harness and the stability of the electrical connection.

[0025] (2) The abutment part adopts a ring structure that matches the shape of the mounting hole, which can achieve a tight fit with the mounting hole, enhance the connection stability between the protective sleeve and the mounting hole, and at the same time, the ring structure can wrap the wire harness around the whole circumference or a large area, improve the comprehensiveness of the wire harness protection, and avoid local stress concentration leading to wire harness wear.

[0026] (3) The C-shaped joint facilitates installation and disassembly, and is especially suitable for situations where the internal space of the headrest support is limited. Its opening faces away from the car seat, which can prevent the wiring harness from coming out of the protection range due to vibration or displacement during use, thereby improving the reliability of the protective structure and the ease of assembly. Attached Figure Description

[0027] Figure 1 This is a perspective view of the wire harness protection structure, wire harness, and headrest support rod of this utility model during installation.

[0028] Figure 2 yes Figure 1 The top view in the image.

[0029] Figure 3 yes Figure 2 Sectional view along the AA direction.

[0030] Figure 4 It is a 3D diagram of the protective case.

[0031] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle.

[0032] In the diagram, 100 is the headrest support rod; 110 is the mounting hole; 200 is the protective sleeve; 210 is the contact part; 211 is the outer side wall; 212 is the inner side wall; 220 is the protective hole; 230 is the sleeve body; and 300 is the wiring harness. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] like Figures 1 to 5 As shown, this utility model discloses a wire harness protection structure for a headrest support rod, which is used to protect the wire harness 300 passing through the headrest support rod 100. The wire harness 300 protection structure includes a protective sleeve 200.

[0036] Specifically, the headrest support rod 100 is provided with a mounting hole 110 for the wire harness 300 to pass through, and the protective sleeve 200 is fixedly installed on the headrest support rod 100; wherein, the protective sleeve 200 includes an abutment portion 210, the abutment portion 210 including: an outer side wall 211, which abuts against the side wall of the mounting hole 110; an inner side wall 212, which at least partially surrounds the wire harness 300 and contacts the outer periphery of the wire harness 300 passing through the mounting hole 110; the abutment portion 210 forms an isolation structure between the wire harness 300 and the mounting hole 110, and the surrounding range of the inner side wall 212 covers part or all of the outer periphery of the wire harness 300.

[0037] In the headrest equipped with the protective structure of this solution, when the headrest is adjusted in height relative to the car seat, or when the car shakes during driving, the isolation structure formed by the abutment part 210 between the wire harness 300 and the mounting hole 110 can effectively prevent direct contact between the wire harness 300 and the inner wall of the mounting hole 110, thereby preventing the outer sheath of the wire harness 300 from being scratched by burrs or sharp parts on the mounting hole 110.

[0038] The key to achieving the above-mentioned protective effect lies in the rational design of the protective structure. By setting a protective sleeve 200 inside the mounting hole 110 of the headrest support rod 100, not only can dynamic protection of the wiring harness 300 be achieved, but structural stability and ease of assembly can also be taken into account. Specifically,

[0039] This solution involves installing a protective sleeve 200 inside the mounting hole 110 of the headrest support rod 100. The outer side wall 211 of the sleeve 200 is tightly fitted to the mounting hole 110, while the inner side wall 212 at least partially surrounds the wire harness 300 and contacts the outer periphery of the wire harness 300. This forms an isolation structure between the mounting hole 110 and the wire harness 300, effectively preventing the wire harness 300 from directly contacting the sharp hole wall of the metal support rod, preventing the wire harness 300 from being damaged by friction, and thus improving the service life of the wire harness 300 and the stability of the electrical connection.

[0040] In one embodiment, the abutment portion 210 has an annular structure adapted to the shape of the mounting hole 110.

[0041] The abutment part 210 adopts an annular structure that matches the shape of the mounting hole 110, which can achieve a tight fit with the mounting hole 110, enhance the connection stability between the protective sleeve 200 and the mounting hole 110, and at the same time, the annular structure can wrap the wire harness 300 around its entire circumference or a large area, improve the comprehensive protection of the wire harness 300, and avoid wear of the wire harness 300 caused by local stress concentration.

[0042] In another embodiment, the abutment portion 210 is in a C-shaped semi-enclosed shape, and the opening of the abutment portion 210 faces the end of the headrest support 100 away from the car seat.

[0043] The C-shaped abutment portion 210 facilitates installation and disassembly, and is especially suitable for situations where the internal space of the headrest support rod 100 is limited. Its opening faces away from the car seat, which can prevent the wiring harness 300 from falling out of the protection range due to vibration or displacement during use, thereby improving the reliability of the protective structure and the ease of assembly.

[0044] Furthermore, the protective cover 200 also includes a protective hole 220, which is located near the side wall of the headrest support 100 away from the car seat and makes active contact with the outer peripheral wall of the wiring harness 300 passing through the mounting hole 110.

[0045] The design of the protective hole 220 allows the wire harness 300 to make active contact with the side wall of the protective hole 220 when passing through the mounting hole 110. When the abutment part 210 has a C-shaped semi-enclosed structure, it can guide the wire harness 300 and reduce the direct friction between the wire harness 300 and the metal hole wall during movement, thereby further preventing the wire harness 300 from wearing out and improving the stability and safety of the wire harness 300 during dynamic use.

[0046] It is worth mentioning that the protective hole 220 is projected along the direction toward the mounting hole 110, and its projection range is completely within the mounting hole 110.

[0047] The projection range of the protective hole 220 is completely within the mounting hole 110, ensuring that the abutment part 210 is completely embedded inside the mounting hole 110, avoiding the joint from protruding outside the support rod, preventing structural damage caused by external collisions or assembly interference, and improving the overall compactness and aesthetics of the structure.

[0048] Preferably, the abutment portion 210 extends from the inner sidewall 212 of the protective hole 220 toward the mounting hole 110.

[0049] The abutting part 210 is formed by extending from the inner sidewall 212 of the protective hole 220, so that the protective hole 220 and the abutting part 210 are integrated into a single design, which is compact and simple to manufacture. At the same time, it enhances the overall structural strength and stability of the protective sleeve 200, ensuring that the protective sleeve 200 is not easily deformed or detached during use.

[0050] The protective cover 200 also includes a cover body 230, which has a C-shaped structure and is snapped onto the outer side wall 211 of the headrest support rod 100. The inner side wall 212 of the cover body 230 covers an area smaller than the diameter of the headrest support rod 100, and is used to fix the protective cover 200 onto the headrest support rod 100.

[0051] The sheath body 230 adopts a C-shaped structure to snap onto the outer wall 211 of the support rod, which facilitates quick installation and disassembly. At the same time, the area covered by its inner wall 212 is smaller than the diameter of the support rod, forming an elastic clamping force to firmly fix the protective sleeve 200 to the support rod, preventing it from falling off due to vibration or displacement, and improving the installation reliability and practicality of the protective structure.

[0052] It is worth mentioning that the protective cover 200 is made of plastic, and the cover body 230 and the contact part 210 are integrally molded by injection molding.

[0053] The protective sleeve 200, made of plastic, has good elasticity and wear resistance. It can effectively buffer the impact between the wire harness 300 and the metal hole wall without scratching the outer sheath of the wire harness 300. At the same time, the plastic material is easy to injection mold, which helps to reduce manufacturing costs and improve production efficiency.

[0054] This solution also provides a headrest including the wiring harness 300 protection structure described in any of the above claims.

[0055] This solution also provides a vehicle including the aforementioned headrest, wherein the vehicle is a motor vehicle equipped with a headrest, such as a sedan, truck, or bus.

[0056] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0058] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A wire harness protection structure for a headrest support rod, used to protect the wire harness passing through the headrest support rod, characterized in that, The wire harness protection structure includes: A protective cover is provided, wherein the headrest support rod has mounting holes for the wire harness to pass through, and the protective cover is fixedly installed on the headrest support rod; wherein, The protective sleeve includes an abutment portion, the abutment portion comprising: an outer sidewall that abuts against the sidewall of the mounting hole; and an inner sidewall that at least partially surrounds the wire harness and contacts the outer periphery of the wire harness passing through the mounting hole; The abutment portion forms an isolation structure between the wire harness and the mounting hole, and the circumferential range of the inner sidewall covers part or all of the outer periphery of the wire harness.

2. The wire harness protection structure for a headrest support rod as described in claim 1, characterized in that, The abutment portion has an annular structure that matches the shape of the mounting hole.

3. The wire harness protection structure for a headrest support rod as described in claim 1, characterized in that, The abutment portion is in a C-shaped semi-enclosed shape, and the opening of the abutment portion faces the end of the headrest support rod away from the car seat.

4. The wire harness protection structure for a headrest support rod as described in claim 3, characterized in that, The protective sleeve also includes a protective hole, the side wall of which is near the headrest support rod away from the car seat and in contact with the outer peripheral wall of the wiring harness passing through the mounting hole.

5. A wire harness protection structure for a headrest support rod as described in claim 4, characterized in that, The protective hole is projected along the direction toward the mounting hole, and its projection range is completely within the mounting hole.

6. The wire harness protection structure for a headrest support rod as described in claim 4, characterized in that, The abutting portion extends from the inner wall of the protective hole toward the mounting hole.

7. The wire harness protection structure for a headrest support rod as described in claim 1, characterized in that, The protective cover also includes a cover body, which has a C-shaped structure and is snapped onto the outer wall of the headrest support rod. The inner wall of the cover body covers an area smaller than the diameter of the headrest support rod, and is used to fix the protective cover onto the headrest support rod.

8. The wire harness protection structure for a headrest support rod as described in claim 1, characterized in that, The protective sleeve is made of plastic.

9. A headrest, characterized in that, Includes a wire harness protection structure for a headrest support rod as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Including a headrest as described in claim 9.

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