A seat wiring harness constraint structure

Abstract

This utility model discloses a seat wiring harness constraint structure, including a seat body, an adjustment unit capable of reciprocating movement on the seat body, a wiring harness connected to the adjustment unit, the wiring harness having a free movable section, and a traction component provided between the free movable section and the seat body; the traction component can keep the free movable section taut in any position the adjustment unit moves. The beneficial effects of this utility model are: during the full-stroke adjustment movement of the adjustment unit, the traction component keeps the free movable section taut at all times. On the one hand, this ensures that the wiring harness section is neatly constrained within the seat, without a messy appearance, abnormal noises during driving, and good aesthetics; on the other hand, it also ensures that the wiring harness will not be bent or deformed due to slack, or damaged due to excessive traction, improving the durability of the wiring harness and ensuring the long-term stable operation of the seat's electrical components.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a seat wiring harness constraint structure. Background Technology

[0002] As the automotive industry upgrades towards intelligence and comfort, car seats have transformed from simple load-bearing components into core comfort units integrating multiple functions. To meet the advanced demands of drivers and passengers for a superior riding experience, seats now incorporate an increasing number of adjustment units, such as backrests, leg rests, headrests, armrests, and side wings. These adjustment units typically integrate electrical components such as motors, heaters, ventilators, and speakers. To provide power and signal transmission to these electrical components, wiring harnesses must be installed in corresponding locations within the seat frame.

[0003] Because the adjustment unit has a reciprocating motion characteristic, the wiring harness laid out in the seat must have sufficient slack to accommodate the full range of motion of the adjustment unit, in order to avoid tensile stress during the movement of the adjustment unit, which could cause damage or breakage of the wiring harness. Currently, this long wiring harness slack design has a technical problem: the excess wiring harness lacks storage management and restraint within the seat. On the one hand, it is aesthetically unappealing; on the other hand, during the reciprocating motion of the adjustment unit, the unrestrained redundant wiring harness is prone to dynamic interference with the metal brackets and rigid frame inside the seat. This not only produces abnormal noises affecting the driving and riding experience, but also causes wear and tear on the wiring harness sheath due to continuous friction, which can expose the conductors and cause safety hazards such as short circuits and poor contact.

[0004] Taking the backrest adjustment unit as an example, as consumers' demand for reclining comfort increases, the adjustable angle of the backrest continues to increase. The wiring harness in the area where it connects to the seat cushion needs to be adapted to the full range of motion from leaning forward to leaning back significantly. Therefore, the wiring harness needs to be designed with a longer redundant range of motion. The long redundant range of motion cannot be effectively constrained and stored, resulting in problems such as poor aesthetics, abnormal noises during driving, and wear.

[0005] Therefore, how to efficiently and concisely constrain and manage the redundant active segments of the wiring harness has become a pressing technical challenge in the field of automotive seat design. Utility Model Content

[0006] In view of this, the present invention provides a seat wiring harness constraint structure, which aims to achieve constraint management of movable wiring harnesses.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A seat wiring harness constraint structure includes a seat body with an adjustment unit capable of reciprocating movement. A wiring harness is connected to the adjustment unit. The key feature is that the wiring harness has a free movable section, and a traction component is provided between the free movable section and the seat body. The traction component applies a pulling force to the free movable section. No matter where the adjustment unit moves, the pulling force provided by the traction component can keep the free movable section in a neat and folded state.

[0009] With the above structure, the traction component ensures that the free-moving section remains neatly retracted throughout the entire stroke of the adjustment unit. This prevents localized sharp bends due to excessive slack in the wiring harness, and also avoids fatigue stress from repeated stretching due to excessive pulling of the wiring harness. This improves the durability of the wiring harness, avoids the risk of wiring harness breakage caused by large-angle reciprocating adjustments of the adjustment unit, and ensures the long-term stable operation of the seat's electrical components.

[0010] Preferably, the seat body has a seat frame, the adjustment unit is a backrest rotatably mounted at the rear end of the seat frame, the free-moving section is arranged within the seat frame, and the traction component is connected between the seat frame and the free-moving section. With this structure, the free-moving section is positioned within the seat frame, and the traction component provides a more stable tension in both direction and magnitude to the free-moving section. This ensures that the free-moving section maintains appropriate tension during backrest adjustment, thereby guaranteeing that the free-moving section can be consistently and neatly stored in its designated position.

[0011] Preferably, the traction component is an elastic member connected between the seat frame and the free-moving section, and the elastic member applies a forward pulling force to the free-moving section. With this structure, the elastic member always applies a forward pulling force to the free-moving section. When the backrest rotates forward, the wire harness segment fixed inside the backrest can pull the free-moving section backward relative to the seat frame. When the backrest rotates backward, the pulling force provided by the elastic member can pull the free-moving section forward relative to the seat frame. Therefore, throughout the entire stroke of the backrest's forward and backward rotation adjustment, the free-moving section of the wire harness can remain in a taut and neatly stored state.

[0012] Preferably, a wiring harness box is installed within the seat frame. This box has a storage slot extending along the length of the seat frame, and the freely movable section is positioned within this slot. With this structure, the wiring harness box is located within the seat frame, not occupying external space and requiring no special consideration for the seat's shape. The wiring harness box provides a dedicated, sliding storage space for the freely movable section and guides its movement, preventing tangling, twisting, or misalignment. It also eliminates contact between the wiring harness and internal metal components of the seat, reducing the risk of wear and noise.

[0013] Preferably, the wire harness box includes a box body and a cover plate connected to the upper side of the box body; the cover plate is installed by snap-fit ​​or by threaded fasteners.

[0014] And / or, one end of the elastic component is connected to the wire harness box, and the other end is connected to the free-moving section. With the above structure, the cover plate can shield the wire harness in the storage slot, forming a closed space with the wire harness box to prevent foreign objects from entering, and its smooth molded surface and grease-lubricated surface can reduce the resistance to wire harness movement.

[0015] Preferably, a wire harness bracket is installed in the transition area between the backrest and the seat frame, and the middle section of the wire harness is fixed to the wire harness bracket. This structure provides a stable fulcrum for the transition of the wire harness from the backrest to the seat frame, effectively limiting the bending angle of the wire harness in the transition area and preventing stress concentration caused by excessive bending due to backrest rotation.

[0016] Preferably, the wire harness bracket has a clearance notch through which the middle section of the wire harness passes. With this structure, the clearance notch provides a convenient passage for the wire harness, simplifying the assembly process between the wire harness and the wire harness bracket.

[0017] Preferably, an opening is provided on one side of the clearance notch. This structure allows the wire harness to be quickly and directly inserted into the clearance notch from the open side during assembly, significantly improving the assembly efficiency of the wire harness and its support.

[0018] Preferably, the wiring harness has, along its length, a first fixed end, a free-moving section, a transition bend section, and a second fixed end. The first fixed end is fixedly installed at the bottom of the seat frame, the free-moving section is located inside one side of the seat frame, the transition bend section passes through the wiring harness bracket, and the second fixed end is connected to the backrest. With this structure, the first and second fixed ends ensure the stability of the connection between the two ends of the wiring harness. The tautness of the free-moving section and the angular constraint of the transition bend section comprehensively avoid the risks of interference, wear, and breakage of the wiring harness within the seat, making the overall structure more rational and complete.

[0019] Preferably, the adjustment unit is a headrest, leg rest, armrest, or side wing of the backrest. This structure offers wide applicability.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. The seat wiring harness constraint structure provided by this utility model ensures that the pulling force provided by the traction component keeps the free-moving section in a taut and neatly stored state during the full-stroke adjustment movement of the adjustment unit. On the one hand, it ensures that the wiring harness section is kept neatly and constrained in the seat, without any messiness, abnormal noise during driving, and good aesthetics. On the other hand, it also ensures that the wiring harness will not be bent or deformed due to slack or damaged due to excessive pulling, thereby improving the durability of the wiring harness and ensuring the long-term stable operation of the seat's electrical components.

[0022] 2. The seat wiring harness constraint structure provided by this utility model can be adapted to various types of adjustment units on the seat and has wide applicability, such as: backrest, leg rest, headrest, etc.

[0023] 3. The seat wiring harness constraint structure provided by this utility model provides a dedicated sliding storage space for the free-moving section and provides guidance for the sliding of the free-moving section. This not only avoids the free-moving section from getting tangled, twisted or offset, but also eliminates the contact between the wiring harness and the internal metal frame and other components of the seat, reducing the risk of wear and abnormal noise.

[0024] 4. The seat wiring harness constraint structure provided by this utility model can achieve constraint management of the moving wiring harness without taking up additional passenger space, which not only ensures the stable performance of the seat comfort function, but also improves the integration and regularity of the seat's internal structure. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the seat wiring harness constraint structure (cover plate 12 is hidden).

[0026] Figure 2 This is another structural diagram of the seat wiring harness constraint structure;

[0027] Figure 3 A schematic diagram of the seat wiring harness constraint structure including the cover plate 12;

[0028] Figure 4 This is a schematic diagram illustrating the connection method between wire harness 2, wire harness box 1, and wire harness bracket 6;

[0029] Figure 5 This is an exploded view of wire harness 2, wire harness box 1, and wire harness bracket 6. Detailed Implementation

[0030] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0031] like Figure 1The illustrated seat wiring harness constraint structure includes a seat body A with a reciprocating adjustment unit. The adjustment unit includes, but is not limited to, a backrest, headrest, leg rest, armrest, or backrest side wings. A wiring harness 2 is connected to the adjustment unit, and the wiring harness 2 has a free-moving section 2a. A traction component 3 is provided between the free-moving section 2a and the seat body. No matter where the adjustment unit moves, the traction component 3 can keep the free-moving section 2a in a neat, stowed state.

[0032] The advantage of this design is that the traction component 3 ensures that the free-moving section 2a remains neatly folded throughout the entire stroke of the adjustment unit. This prevents localized sharp bends due to excessive slack in the wiring harness, and also avoids fatigue stress from repeated stretching caused by excessive pulling. This improves the durability of the wiring harness, avoids the risk of harness breakage caused by large-angle reciprocating adjustments of the adjustment unit, and ensures the long-term stable operation of the seat's electrical components. Furthermore, this structure is compatible with various types of adjustment units, offering broad applicability.

[0033] For example Figure 1 As shown, the seat body has a seat frame 4. Taking the backrest 5 as an example, the adjustment unit is rotatably mounted at the rear end of the seat frame 4. The free-moving section 2a is arranged inside the seat frame 4, and the traction component 3 is connected between the seat frame 4 and the free-moving section 2a. By arranging the free-moving section 2a in the seat frame 4, the traction component 3 provides a forward pulling force to the free-moving section 2a, ensuring that the free-moving section 2a of the wiring harness always maintains a suitable tension during backrest adjustment, thereby achieving neat storage of the wiring harness at this location.

[0034] In this embodiment, the traction component 3 is an elastic component connecting the seat frame 4 and the free-moving segment 2a. This elastic component always applies a forward-moving pulling force to the free-moving segment 2a. When the backrest 5 rotates forward, the wire harness segment fixed inside the backrest 5 can pull the free-moving segment 2a backward relative to the seat frame 4. When the backrest 5 rotates backward, the pulling force provided by the elastic component can pull the free-moving segment 2a forward relative to the seat frame 4. Therefore, throughout the entire stroke of the backrest 5's forward and backward rotation adjustment, the free-moving segment 2a of the wire harness can continuously maintain a forward-tightened state, achieving neat storage at that location. With this design, the wire harness 2 will neither accumulate and tangle due to excessive slack nor bear alternating stress due to excessive tension, effectively alleviating fatigue damage to the wire harness 2 and significantly improving the durability of the wire harness 2 against reciprocating bending, fundamentally avoiding the risk of wire harness breakage caused by large-angle adjustments. The gentle characteristics of the elastic pulling force can also reduce hard damage to the wire harness, extend the service life of the wire harness, and at the same time, the elastic component has a simple structure and is easy to install, reducing assembly costs.

[0035] In practical applications, the elastic component can be a strap, spring, or tension spring.

[0036] Please refer to Figure 1 and Figure 4 A wiring harness box 1 is fixedly installed inside the seat frame 4. The wiring harness box 1 has a storage groove 1a that runs through the length of the seat frame 4. A free-moving section 2a is arranged in the storage groove 1a. One end of an elastic component is connected to the wiring harness box 1, and the other end is connected to the free-moving section 2a. The wiring harness box 1 is set inside the seat frame 4, does not occupy the external space of the seat, and has no special requirements on the shape of the seat. The wiring harness box 1 provides a dedicated sliding storage space for the free-moving section 2a and provides guidance for the sliding of the free-moving section 2a, which not only avoids the free-moving section 2a from getting tangled, twisted, or offset, but also eliminates the contact between the wiring harness and the internal metal frame and other components of the seat, reducing the risk of wear and noise.

[0037] Further, refer to Figure 1 and 3 The wire harness box 1 includes a box body 11 and a cover plate 12 that is fastened to the upper side of the box body 11. The cover plate 12 can cover the wire harness 2 in the storage slot 1a to prevent foreign objects such as metal dust from entering the storage slot 1a. The cover plate 12 is installed by snap-fit ​​or by threaded fasteners.

[0038] refer to Figure 1 A wire harness bracket 6 is installed in the transition area between the backrest 5 and the seat frame 4, and the middle section of the wire harness 2 is fixed to the wire harness bracket 6. This design provides a stable fulcrum for the transition of the wire harness 2 from the seat frame 4 to the backrest 5, effectively limiting the bending angle of the wire harness 2 in the transition area and preventing stress concentration caused by excessive bending due to the rotation of the backrest 5. At the same time, the fixing effect of the wire harness bracket 6 reduces the direct contact between the wire harness 2 and the metal components in the transition area, reducing the risk of wear on the wire harness 2, making the movement trajectory of the wire harness 2 more regular during the rotation of the backrest 5, and further improving the stability of the overall wire harness constraint structure.

[0039] See again Figure 4 and Figure 5 The wire harness bracket 6 is provided with a clearance notch 61, through which the middle section of the wire harness 2 passes. The clearance notch 61 provides a convenient passage for the wire harness 2 to pass through, simplifying the assembly process of the wire harness 2 and the wire harness bracket 6.

[0040] Combination Figure 4 and Figure 5 As shown, an opening is provided on one side of the clearance notch 61, so that the wire harness 2 can be quickly inserted into the clearance notch 61 directly from the opening side during assembly, which greatly improves the assembly efficiency of the wire harness 2 and the wire harness bracket 6.

[0041] Depend on Figure 4 It can be seen that the wire harness 2, along its length, has a first fixed end 2b, a free-moving section 2a, a transition bending section 2c, and a second fixed end 2d. For example... Figure 1 and Figure 2As shown, the first fixed end 2b is fixedly installed at the bottom of the seat frame 4 and is used to connect to the power supply module. The free-moving section 2a is located inside one side of the seat frame 4, and the transition bending section 2c passes through the wire harness bracket 6. The second fixed end 2d is connected inside the backrest 5 and is used to connect to the electrical components inside the backrest 5. The first fixed end 2b and the second fixed end 2d ensure the stability of the connection at both ends of the wire harness 2. Through the tension of the free-moving section 2a and the angular constraint of the transition bending section 2c, the risks of interference, wear, and breakage of the wire harness inside the seat are avoided in all aspects, making the layout of the entire structure more reasonable and complete.

[0042] In addition to the above-described embodiments, the free-moving segment 2a can be disposed on the seat adjustment unit. Disposing the free-moving segment 2a on the adjustment unit adapts to scenarios where there is ample installation space for the seat adjustment unit, thus improving the structural flexibility in adapting to different scenarios.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A seat wiring harness restraint structure comprising a seat body having a reciprocating adjustment unit thereon, a wiring harness (2) being connected to the adjustment unit, characterized in that: The wiring harness (2) has a free-moving section (2a), and a traction assembly (3) is provided between the free-moving section (2a) and the seat body, and the traction assembly (3) applies a pulling force to the free-moving section (2a); The pulling force provided by the traction component (3) can keep the free-moving section (2a) in a neat and folded state no matter where the adjustment unit moves.

2. The seat wiring harness restraint structure of claim 1, wherein: The seat body has a seat frame (4), the adjustment unit is a backrest (5) rotatably installed at the rear end of the seat frame (4), the free movement section (2a) is arranged inside the seat frame (4), and the traction component (3) is connected between the seat frame (4) and the free movement section (2a).

3. The seat wiring harness restraint structure of claim 2, wherein: The traction component (3) is an elastic member connected between the seat frame (4) and the free-moving segment (2a), and the elastic member applies a forward-moving pulling force to the free-moving segment (2a).

4. The seat wiring harness restraint structure of claim 3, wherein: A wire harness box (1) is installed inside the frame (4). The wire harness box (1) has a storage groove (1a) that runs through the length of the frame (4). The free movable section (2a) is arranged in the storage groove (1a).

5. The seat wiring harness restraint structure of claim 4, wherein: The wire harness box (1) includes a box body (11) and a cover plate (12) connected to the upper side of the box body (11). And / or, one end of the elastic member is connected to the wire harness box (1), and the other end is connected to the free-moving section (2a).

6. The seat wiring harness restraint structure of claim 2, wherein: A wire harness bracket (6) is installed in the transition area between the backrest (5) and the seat frame (4), and the middle section of the wire harness (2) is fixed on the wire harness bracket (6).

7. The seat wiring harness restraint structure of claim 6, wherein: The wire harness bracket (6) is provided with a clearance notch (61), and the middle section of the wire harness (2) passes through the clearance notch (61).

8. The seat wiring harness restraint structure of claim 7, wherein: An opening is provided on one side of the avoidance gap (61).

9. The seat wiring harness restraint structure of claim 6, wherein: The wire harness (2) has a first fixed end (2b), a free movable section (2a), a transition bending section (2c), and a second fixed end (2d) in sequence along its length direction. The first fixed end (2b) is fixedly installed at the bottom of the seat frame (4). The free movable section (2a) is located inside one side of the seat frame (4). The transition bending section (2c) passes through the wire harness bracket (6). The second fixed end (2d) is connected inside the backrest (5).

10. The seat wiring harness restraint structure of claim 1, wherein: The adjustment unit is a headrest, leg rest, armrest, or side wing of the backrest.

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