Adjustable wiring harness structure and dimming glass car window comprising same

Abstract

The invention relates to the technical field of automobile windows, and particularly discloses an adjustable wiring harness structure and a dimming glass window comprising the same, the adjustable wiring harness structure comprises a guide rail and a slider assembly slidably mounted on the guide rail, and further comprises a protective shell mounted on one side of the guide rail; the traction assembly is contained in the protective shell, and one end of the traction assembly is in transmission connection with the sliding block assembly; the vehicle window wire harness is arranged in the traction assembly in a penetrating mode. According to the invention, full-wrapping structured constraint is formed on the vehicle window wire harness through the drag chain, and dynamic adaptive tension of the springback mechanism is combined, so that the wire harness only stably stretches out and draws back along with the drag chain when the wire harness moves along with the sliding block assembly, and fatigue cracks of conductor metal are reduced; the closed structure of the drag chain and the protective shell form dual protection, the aging and cracking risk of the insulating layer is reduced, and the service life of the wire harness is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of automotive window technology, specifically relating to an adjustable wiring harness structure and a dimming glass window containing the structure. Background Technology

[0002] Automotive smart windows, with their ability to flexibly adjust light transmittance electronically, are increasingly used in automotive side windows, providing occupants with an adjustable lighting environment and privacy protection. Normal operation of automotive side window smart windows requires a wiring harness connected to the vehicle's power supply. To accommodate the window's raising and lowering motion, the wiring harness must be fixedly connected to the window regulator's slider, ensuring synchronized movement and continuous power supply throughout the entire window's movement. To accommodate the window's full raising and lowering from its lowest to highest position, the wiring harness must have sufficient redundancy to prevent breakage due to stretching during window operation, ensuring stable power supply.

[0003] A search revealed that CN119466485A discloses a car dimming window lifting device, including a dimming glass wiring harness, a glass bracket, a lifter guide rail, and a lifter slider mounted on the lifter guide rail. The dimming glass of the dimming window is mounted on the glass bracket, which is connected to the lifter slider. The lifter guide rail is provided with a wiring harness guide structure, on which the dimming glass wiring harness is wound. The wiring harness guide structure is provided with a vertically movable wiring harness guide block, which is connected to the lifter slider. The upper end of the dimming glass wiring harness is positioned on the wiring harness guide block.

[0004] The spirally wound wiring harness expands and contracts with the guide block, similar to the working principle of a spring wire. However, the complexity of the automotive door cavity environment accelerates the aging and failure of the wiring harness. Specifically, window operation is a high-frequency usage scenario, and the wiring harness needs to withstand repeated cycles of stretching and compression. The conductor of the spiral wiring harness will gradually develop cracks due to metal fatigue, and the outer insulation layer of the wiring harness will also age and crack due to repeated deformation. Especially in the low temperature environment of winter, the wiring harness hardens, its elasticity decreases, and the risk of breakage increases. After long-term use, the wiring harness core may break, leading to power outages or unstable power supply to the dimming glass, affecting the dimming function and even the window operation. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable wiring harness structure and a dimming glass window containing the structure, so as to solve the problems mentioned in the background art, where the spirally wound wiring harness stretches and contracts with the guide block, the wiring harness repeatedly endures cycles of stretching and compression, the conductor of the spiral wiring harness gradually develops cracks due to metal fatigue, and the outer insulation layer of the wiring harness also ages and cracks due to repeated deformation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An adjustable wire harness structure includes a guide rail and a slider assembly slidably mounted on the guide rail, and further includes: A protective housing is installed on one side of the guide rail; The traction assembly is housed within the protective housing, and one end of it is connected to the slider assembly for transmission. The window wiring harness is run through the traction assembly; The traction component is configured such that when the slider assembly moves, a bend is formed and maintained within the protective housing, and the window wiring harness is constrained by the bend and moves synchronously with the slider assembly.

[0007] In one embodiment, the traction component includes: The cable chain has one end fixedly connected to the protective housing and the other end connected to the sliding assembly. The window wiring harness is threaded through the cable chain, which forms a U-shaped bend within the protective housing.

[0008] In one embodiment, the traction component further includes: The spring mechanism, located inside the protective housing, is connected to the inside of the U-shaped bend of the cable chain and is used to provide a preload force to the cable chain to keep it taut at all times.

[0009] In one embodiment, the springback mechanism includes: The movable seat is linked to the U-shaped curved section of the cable chain; The energy storage component is housed within the protective casing; The traction rope connects the mobile base to the energy storage unit; When the cable chain extends or retracts, it drives the moving seat to move and drives the energy storage component to store or release energy through the traction rope, so as to provide continuous tension to the cable chain.

[0010] In one embodiment, the movable seat is rotatably engaged with the inside of the cable chain via two rollers; The energy storage assembly includes a mounting base, a winding wheel rotatably mounted on the mounting base, and an elastic element that provides a reset torque to the winding wheel; One end of the traction rope is connected to the movable seat, and the other end is wound around the winding wheel.

[0011] In one embodiment, two grooves are symmetrically formed on the movable base, and two rollers are respectively installed in the two grooves; A connector is fixedly connected to the movable seat, and the end of the traction rope is connected to the connector; The mounting base has a control groove, and the winding wheel is rotatably connected to the control groove through a rotating base. One end of the elastic element is fixed to the inner wall of the control groove, and the other end is connected to the rotating base.

[0012] In one embodiment, a connector is installed at one end of the cable chain near the slider assembly, and the connector is connected to the slider assembly.

[0013] In one embodiment, the protective shell includes: A cavity is formed inside the protective shell, and the cable chain is disposed inside the cavity; A sliding hole is formed on the inner wall of the cavity, and the connector slides inside the sliding hole.

[0014] In a preferred embodiment, the protective shell further includes: The wiring harness fixing head is installed on the outside of the protective shell and is used to fix the window wiring harness. The wiring reel is mounted on the protective housing, and the window wiring harness passes through the wiring reel. Fasteners are mounted on the protective housing and are connected to the end of the cable chain away from the slider assembly.

[0015] In a preferred embodiment, it further includes: The powertrain is mounted on the guide rail and is connected to the slider assembly to drive the slider assembly to move along the guide rail.

[0016] In one embodiment, a first connector and a second connector are respectively installed at both ends of the window wiring harness, and the first connector is connected to the dimming glass.

[0017] A dimming glass vehicle window, comprising any one of the above-mentioned adjustable wiring harness structures.

[0018] Compared with the prior art, the beneficial effects of the present invention are: By using a cable chain to create a fully enclosed structural constraint on the window wiring harness, combined with the dynamic adaptation tension of the spring mechanism, the wiring harness can move smoothly with the cable chain as it moves with the slider assembly, reducing the occurrence of fatigue cracks in the conductor metal. The closed structure of the cable chain and the protective shell form a double protection, reducing the risk of insulation layer aging and cracking, and extending the service life of the wiring harness.

[0019] The cable chain adapts to the travel distance through a U-shaped bend and guides the connector with a sliding hole, ensuring that the cable harness always moves along a preset trajectory. The continuous tension of the spring mechanism prevents the cable chain from slackening and wobbling, and the moving seat roller converts sliding friction into rolling friction, reducing movement resistance and component wear, and ensuring smooth operation of the window lifting and dimming functions.

[0020] The window wiring harness moves smoothly and orderly under the constraint of the cable chain. The physical protection of the cable chain and the protective shell can resist the corrosion of dust and moisture inside the door cavity, ensure the stability of power supply and signal transmission, and ensure the stable operation of the dimming glass. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the present invention.

[0022] Figure 2 This is a rear view schematic diagram of the slider assembly, power assembly, and protective housing of the present invention.

[0023] Figure 3 This is an exploded view of the present invention.

[0024] Figure 4 This is a schematic diagram of the traction assembly and window wiring harness of the present invention.

[0025] Figure 5 This is a schematic diagram of the protective shell of the present invention.

[0026] Figure 6 This is a schematic diagram of the springback mechanism of the present invention.

[0027] Figure 7 This is a schematic diagram of the springback mechanism of the present invention from another perspective.

[0028] Figure 8 This is an exploded view of the springback mechanism of the present invention.

[0029] In the picture: 10. Guide rail; 11. Slider assembly; 20. Powertrain; 30. Protective shell; 31. Cavity; 32. Sliding hole; 33. Wire harness fixing head; 34. Cable reel; 35. Fastener; 40. Traction assembly; 41. Cable chain; 42. Connector; 43. Rebound mechanism; 431. Moving seat; 432. Roller; 433. Connector head; 434. Traction rope; 435. Mounting base; 436. Rotary seat; 437. Winding reel; 438. Elastic element; 50. Window wiring harness; 51. First connector; 52. Second connector. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-8 An adjustable wire harness structure includes a guide rail 10 and a slider assembly 11 slidably mounted on the guide rail 10, and further includes: The protective housing 30 is installed on one side of the guide rail 10; The traction component 40 is housed within the protective housing 30, and one end of it is connected to the slider assembly 11 in a transmission manner. The window wiring harness 50 is threaded through the traction assembly 40; The traction component 40 is configured such that when the slider assembly 11 moves, a curved portion is formed and maintained within the protective housing 30, and the window wiring harness 50 is constrained by the curved portion and moves synchronously with the slider assembly 11.

[0032] Specifically, the protective shell 30 provides independent installation space for the traction assembly 40 and the window wiring harness 50, isolating them from interference from external accessories. The traction assembly 40, as the carrier and guide of the wiring harness, can form and maintain a bend that can adapt to the movement stroke of the slider assembly 11. Through the transmission connection with the slider assembly 11, it drives the window wiring harness 50 running through it to move synchronously, so that the wiring harness is always constrained within the range limited by the bend, avoiding pulling, tangling or collision caused by free hanging. At the same time, by utilizing the structural characteristics of the traction assembly 40, the movement trajectory of the wiring harness is kept consistent with the movement direction of the slider, so as to achieve smooth and orderly movement of the wiring harness.

[0033] In the above technical solution, the traction component 40 constrains the window wiring harness 50 through the bending part, so that the wiring harness always maintains a regular movement trajectory when it moves synchronously with the slider assembly 11, avoiding metal fatigue and insulation layer aging caused by repeated stretching and compression, and extending the service life of the wiring harness; the cooperation between the protective shell 30 and the traction component 40 makes the wiring harness arrangement more compact and reduces the space occupied in the door cavity.

[0034] In one embodiment, the traction assembly 40 includes: a cable chain 41, one end of which is fixedly connected to the protective housing 30 and the other end is connected to the sliding assembly, the window wiring harness 50 passing through the cable chain 41, the cable chain 41 forming a U-shaped bend within the protective housing 30; and a spring mechanism 43, disposed within the protective housing 30, the spring mechanism 43 being connected to the inner side of the U-shaped bend of the cable chain 41, for providing a preload force to the cable chain 41 to keep it always taut.

[0035] Specifically, the cable chain 41, serving as the rigid support and guide for the wiring harness, is installed with one end fixed and the other end moving with the slider assembly 11. Combined with the U-shaped bend formed within the protective housing 30, it creates a retractable transmission path that adapts to the window lifting stroke, allowing the wiring harness passing through it to move smoothly with the bending deformation of the cable chain 41. The spring mechanism 43 is connected to the inner side of the U-shaped bend of the cable chain 41, using pre-tension to continuously act on the cable chain 41, counteracting any slack that may occur during the extension and retraction of the cable chain 41, ensuring that the cable chain 41 is always in a taut state. This ensures the smoothness of the cable chain 41's extension and retraction, and through the structural constraint of the cable chain 41 and the dynamic tension of the spring mechanism 43, it prevents the cable chain 41 and the wiring harness from becoming loose and rubbing or colliding with the door, reducing noise generation. At the same time, the enclosed structure of the cable chain 41 also provides additional physical protection for the window wiring harness 50, further improving the overall structural reliability.

[0036] In the above technical solution, the preload provided by the spring mechanism 43 keeps the cable chain 41 in a taut state, which not only avoids movement jamming caused by the slack of the cable chain 41, but also allows the cable chain 41 to quickly respond to the extension and retraction as the slider assembly 11 moves, reducing the relative friction between the wire harness and the inner wall of the cable chain 41. At the same time, it effectively offsets the impact of vehicle driving bumps on the cable chain 41 and the wire harness, improving the stability of the power supply of the wire harness and the overall service life of the cable chain 41 and the wire harness.

[0037] The rebound mechanism 43 includes: a movable seat 431, which is linked to the U-shaped bending section of the cable chain 41; an energy storage component, which is disposed inside the protective shell 30; and a traction rope 434, which is connected between the movable seat 431 and the energy storage component. When the cable chain 41 extends or retracts, it drives the movable seat 431 to move and drives the energy storage component to store or release energy through the traction rope 434, so as to provide continuous tension to the cable chain 41. The movable seat 431 is rotatably engaged with the inner side of the cable chain 41 via two rollers 432; the energy storage assembly includes a mounting base 435, a winding wheel 437 rotatably mounted on the mounting base 435, and an elastic element 438 that provides a reset torque to the winding wheel 437; one end of the traction rope 434 is connected to the movable seat 431, and the other end is wound around the winding wheel 437; two grooves are symmetrically formed on the movable seat 431, and the two rollers 432 are respectively installed in the two grooves; a connector 433 is fixedly connected to the movable seat 431, and the end of the traction rope 434 is connected to the connector 433; a control groove is formed on the mounting base 435, the winding wheel 437 is rotatably connected to the control groove via a rotating base 436, one end of the elastic element 438 is fixed to the inner wall of the control groove, and the other end is connected to the rotating base 436.

[0038] Specifically, the elastic element 438 is a coiled spring or a torsion spring; the groove on the moving seat 431 provides mounting positioning for the roller 432, so that the roller 432 and the inner side of the cable chain 41 form a close rolling fit, which reduces frictional resistance and ensures that the moving seat 431 can move smoothly and synchronously with the extension and retraction of the U-shaped bending section of the cable chain 41; the energy storage component uses the control groove of the mounting seat 435 as the assembly reference, and realizes the rotatable connection of the winding wheel 437 through the rotating seat 436. The torsional force of the elastic element 438 makes the winding wheel 437 always have a tendency to return to its original position. The traction rope 434 connects the moving seat 431 and the winding wheel 437, converting the linear displacement of the moving seat 431 driven by the extension and retraction of the cable chain 41 into the rotational motion of the winding wheel 437. Through the energy storage or release of the elastic element 438, a continuous and dynamically adapted tension force is transmitted to the cable chain 41, avoiding movement deviation or slack in the cable chain 41 during the extension and retraction process, and realizing stable output of tension force and minimization of movement resistance.

[0039] In one embodiment, a connector 42 is installed at one end of the cable chain 41 near the slider assembly 11. The connector 42 is connected to the slider assembly 11. The connector 42 serves as a transitional connection between the cable chain 41 and the slider assembly 11, making the connection between the two more closely fitted and ensuring that the cable chain 41 can move synchronously with the slider assembly 11.

[0040] In one embodiment, the protective shell 30 includes: Cavity 31 is formed inside the protective shell 30, and the drag chain 41 is disposed inside cavity 31; A sliding hole 32 is formed in the inner wall of the cavity 31, and the connector 42 slides in the sliding hole 32; The wiring harness fixing head 33 is installed on the outside of the protective shell 30 and is used to fix the window wiring harness 50. The cable tray 34 is installed on the protective housing 30, and the window wiring harness 50 is installed through the cable tray 34. Fastener 35 is mounted on protective housing 30 and is connected to the end of drag chain 41 away from slider assembly 11.

[0041] In the above technical solution, the sliding hole 32 is opened according to the movement trajectory of the connector 42, and the movement direction of the end of the drag chain 41 is limited by the sliding cooperation between the hole wall and the connector 42; the wire harness fixing head 33 and the wire threading plate 34 are respectively fixed from the outside and limited at the threading point, doubly constraining the lead-out part of the window wire harness 50, and preventing the wire harness from being displaced randomly due to vehicle bumps or the extension and retraction of the drag chain 41; the fastener 35 is a bolt or a screw, and the fastener 35 fixes the fixed end of the drag chain 41 to the protective shell 30.

[0042] In a preferred embodiment, the system further includes a power assembly 20 disposed on the guide rail 10, the power assembly 20 being connected to the slider assembly 11 and used to drive the slider assembly 11 to move along the guide rail 10.

[0043] In the above technical solution, the power assembly 20 consists of a motor, a winding drum, and a spiral steel belt. The motor provides stable power output, and the winding drum and the spiral steel belt work together to form a high-efficiency transmission structure, which can smoothly convert the rotational motion of the motor into the linear movement of the slider assembly 11 along the guide rail 10. The motor and the winding drum form a transmission connection. One end of the spiral steel belt is wound around the outer circumference of the winding drum, and the other end is fixedly connected to the slider assembly 11. After the motor starts, it drives the winding drum to rotate in both directions. By winding or releasing the spiral steel belt through the winding drum, the spiral steel belt is driven to extend and retract along the guide rail 10, thus pulling the slider assembly 11 to move smoothly.

[0044] In one embodiment, the two ends of the window wiring harness 50 are respectively equipped with a first connector 51 and a second connector 52. The first connector 51 is connected to the dimming glass; the second connector 52 provides a standardized interface for the vehicle power supply or control module.

[0045] Example 2: A dimming glass window, including the adjustable wiring harness structure in Example 1.

[0046] The working principle and usage process of this invention: After the power assembly 20 is started, it drives the slider assembly 11 to move. The slider assembly 11 slides on the guide rail 10. The slider assembly 11 drives the drag chain 41 to move through the connector 42. The connector 42 slides smoothly along the sliding hole 32 of the protective shell 30. The drag chain 41 extends and retracts within the cavity 31 of the protective shell 30 based on a U-shaped bend. When the drag chain 41 extends and retracts, its U-shaped bend drives the moving seat 431 to move synchronously. The moving seat 431 reduces the movement resistance by rolling with the inner side of the drag chain 41 through the roller 432. At the same time, the moving seat 431 pulls the winding wheel 437 to rotate through the traction rope 434, so that the elastic element 438 can store energy. Alternatively, energy can be released to continuously provide dynamically adapted tension to the cable chain 41 to ensure that the cable chain 41 always extends and retracts in a regular manner. The window wiring harness 50, which is run through the cable chain 41, moves smoothly and synchronously with the cable chain 41 under the constraint of the cable chain 41. The window wiring harness 50 passes through the cable reel 34, passes through the protective shell 30, and is fixed by the wiring harness fixing head 33 to avoid disorderly displacement. The first connector 51 at both ends of the cable harness 50 is stably connected to the dimming glass, and the second connector 52 is reliably connected to the vehicle power supply or control module to achieve the stable power supply and signal transmission required by the dimming glass. Throughout the process, the protective shell 30 provides independent installation space for each component to isolate external accessory interference, and the wiring harness always moves within the preset trajectory.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable wire harness structure, comprising a guide rail and a slider assembly slidably mounted on the guide rail, characterized in that, Also includes: A protective housing is installed on one side of the guide rail; The traction assembly is housed within the protective housing, and one end of it is connected to the slider assembly for transmission. The window wiring harness is run through the traction assembly; The traction component is configured such that when the slider assembly moves, a bend is formed and maintained within the protective housing, and the window wiring harness is constrained by the bend and moves synchronously with the slider assembly.

2. The adjustable wire harness structure according to claim 1, characterized in that: The traction assembly includes: The cable chain has one end fixedly connected to the protective housing and the other end connected to the sliding assembly. The window wiring harness is threaded through the cable chain, which forms a U-shaped bend within the protective housing.

3. The adjustable wire harness structure according to claim 2, characterized in that: The traction assembly also includes: The spring mechanism, located inside the protective housing, is connected to the inside of the U-shaped bend of the cable chain and is used to provide a preload force to the cable chain to keep it taut at all times.

4. The adjustable wire harness structure according to claim 3, characterized in that: The springback mechanism includes: The movable seat is linked to the U-shaped curved section of the cable chain; The energy storage component is housed within the protective casing; The traction rope connects the mobile base to the energy storage unit; When the cable chain extends or retracts, it drives the moving seat to move and drives the energy storage component to store or release energy through the traction rope, so as to provide continuous tension to the cable chain.

5. The adjustable wire harness structure according to claim 4, characterized in that: The movable seat is rotatably engaged with the inside of the cable chain via two rollers; The energy storage assembly includes a mounting base, a winding wheel rotatably mounted on the mounting base, and an elastic element that provides a reset torque to the winding wheel; One end of the traction rope is connected to the movable seat, and the other end is wound around the winding wheel.

6. The adjustable wire harness structure according to claim 5, characterized in that: The movable base has two symmetrical grooves, and two rollers are respectively installed in the two grooves; A connector is fixedly connected to the movable seat, and the end of the traction rope is connected to the connector; The mounting base has a control groove, and the winding wheel is rotatably connected to the control groove through a rotating base. One end of the elastic element is fixed to the inner wall of the control groove, and the other end is connected to the rotating base.

7. The adjustable wire harness structure according to claim 2, characterized in that: A connector is installed at one end of the cable chain near the slider assembly, and the connector is connected to the slider assembly.

8. The adjustable wire harness structure according to claim 7, characterized in that: The protective shell includes: A cavity is formed inside the protective shell, and the cable chain is disposed inside the cavity; A sliding hole is formed on the inner wall of the cavity, and the connector slides within the sliding hole.

9. The adjustable wire harness structure according to claim 2, characterized in that: The protective shell also includes: The wiring harness fixing head is installed on the outside of the protective shell and is used to fix the window wiring harness. The wiring reel is mounted on the protective housing, and the window wiring harness passes through the wiring reel. Fasteners are mounted on the protective housing and are connected to the end of the cable chain away from the slider assembly.

10. The adjustable wire harness structure according to claim 1, characterized in that: Also includes: The powertrain is mounted on the guide rail and is connected to the slider assembly to drive the slider assembly to move along the guide rail.

11. The adjustable wire harness structure according to claim 1, characterized in that: The two ends of the window wiring harness are respectively equipped with a first connector and a second connector, and the first connector is connected to the dimming glass.

12. A dimming glass car window, characterized in that, Includes the adjustable harness structure as described in any one of claims 1-11.

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