Automobile seat electric long sliding rail structure with wire laying function

Abstract

An automobile seat electric long sliding rail structure with a wire laying function comprises a sliding rail body, a wire laying mechanism containing cavity is formed in the length direction of the sliding rail body, and a seat basin connecting plate sliding groove is formed in the upper surface in the length direction of the sliding rail body; the wire laying mechanism is arranged in the wire laying mechanism accommodating cavity; a sliding pair is formed by the bottom of the hanging piece and the bottom wall of the wire laying mechanism containing cavity, and the upper portion of the hanging piece extends out of the upper plane of the sliding rail body through a sliding groove of a seat basin connecting plate, and is characterized in that the wire laying mechanism comprises a first wire harness containing device and a second wire harness containing device, and a sliding pair is formed by the middle of the first wire harness containing device and the middle of the second wire harness containing device and the wire laying mechanism containing cavity; the left ends of the first and second wire harness accommodating devices are connected with the hanging piece, and the right ends of the first and second wire harness accommodating devices are connected with a redundant wire harness storage box which is arranged on one side of the left end of the slide rail body and is fixed with a carriage bottom plate. The device has the advantages that the wire harness can be adjusted front and back to adapt to winding and unwinding; the filling rate of the wire harness in the wire laying space is reduced, and the service life of the wire harness is guaranteed; the structure is simple, and manufacturing and assembling are convenient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile parts, and particularly relates to an automobile seat electric long slide rail structure with a wire laying function. BACKGROUND

[0002] The concept of the aforementioned automobile seat electric long slide rail is that the stroke under normal circumstances is 40-70 cm, the load is 150-300 kg, the anti-vibration requirement meets ISO16750, and the displacement error is less than 0.5 mm. The dynamic wiring between the automobile body and the seat has a positive significance for the line speed control and the telescopic guide of the automobile seat which can be adjusted forward and backward as needed.

[0003] Modern automobile seats, especially high-end vehicles or luxury vehicles, have increasingly rich functions supported by vehicle-mounted power supplies. In addition to basic forward and backward sliding, backrest adjustment, rotating seat, and the like, many functions aimed at improving comfort, health, and convenience, as well as advanced functions, are also seen on seats. For example, multi-mode massage systems such as kneading, wave-type massage, air pressure massage, and acupoint massage even provide neck, shoulder, and waist-specific massage programs; seat ventilation, which actively sucks or blows air through a fan or a ventilator, to relieve summer heat (commonly configured in mid-to-high-end vehicles); zoned temperature control, such as independently adjusting the heating / ventilation temperature of the seat and the backrest (seen in Lexus and Land Rover vehicles); dynamic support adjustment, such as adjusting the support force of side wings or waist supports; pressure distribution optimization, such as adjusting the hardness of the seat cushion through airbags (such as the relaxation seats of Audi); convenience, intelligence, safety, driving assistance, personalization, luxury configuration, and special scene functions (such as hidden interfaces or one-key pop-up child seats), and the like. Not all of the aforementioned functions need to be supported by a wire harness connected to the vehicle-mounted power supply.

[0004] If the functions of the automobile seat are increasingly more and the lines are also correspondingly increased to form a collection of lines that constitute the aforementioned wire harness, the electrical line problems such as pulling, hard bending, winding, and wear will occur, which will affect the performance of the seat functions.

[0005] Currently, a single seat wire harness includes twenty or even more conductors (power supply, CAN assembly, LIN assembly, analog signal line, and the like), which has exceeded the accommodation capacity of a single wire laying device such as a single tank chain. Especially from the perspective of physical conflict factors of different wire harnesses, high and low voltage need to be isolated, such as heating / ventilation at 12V / 5A, which requires a thick wire diameter, and sensor signals such as CAN assembly require a shielding layer. If a wire laying device is shared, high-voltage line electromagnetic interference (EMI) may affect signal transmission, and thick wires may squeeze thin wires. In addition, differences in flexibility needs also need to be considered, for example, power lines require a high cross-sectional area (such as a commonly used 2.5 mm2 ), the bending radius is large, and the cross-sectional area of the signal line is relatively small (such as 0.35 mm 2 ), and needs to be frequently flexed. Therefore, mixed laying will cause the wire harnesses to pull each other during dynamic movement, accelerating wear.

[0006] From the comprehensive factors of mechanical reliability, thermal management, maintenance convenience, and long-term durability, it is generally recognized in the industry that the area occupied by the wire harness in the wire laying channel, such as in the tank chain cavity, should be controlled to be less than 70%. If the occupied space is greater than 70%, the insulation of the wire will be worn due to extrusion, and even breakage will occur. If the filling rate is greater than 70%, the wire harnesses will be forced to rub against each other at the bending points, accelerating fatigue. That is, the size of the filling rate is inversely proportional to the service life of the wire harness. For example, if the filling rate is greater than 90%, the service life of the wire harness will be significantly reduced, even by 50% relative to the expected service life. In addition, overfilled wire harnesses will affect heat dissipation and thermal expansion, mechanical movement reliability, such as increased static friction force leading to jamming, and so on.

[0007] In summary, since the design concept of the current industry's blind adherence to the wire laying method of the electric long slide rail has been unable to meet the use requirements of continuously improved and increasingly functional automotive seats, it is necessary to make reasonable improvements. The technical solutions to be introduced below are produced in this background. SUMMARY

[0008] The task of the present application is to provide an automotive seat electric long slide rail structure with a wire laying function, which helps to set the wire laying mechanism as a carrier of the automotive seat slide rail and adaptively retract and extend with the forward and backward adjustment of the automotive seat, is beneficial to controlling the filling rate of the wire harness of the wire laying mechanism in the wire laying space to ensure the service life of the wire harness, is conducive to simplifying the structure to facilitate manufacturing and assembly, and embodies economy.

[0009] The task of the present application is accomplished in such a way that an automobile seat electric long slide rail structure with a wiring function comprises a slide rail body fixed on the floor of the car cabin in use, a wiring mechanism accommodating cavity extending through the left end to the right end of the slide rail body in the length direction of the slide rail body, a seat pan connecting plate sliding groove extending from the left end to the right end of the slide rail body in the length direction of the slide rail body and used for connecting the wiring mechanism accommodating cavity with the outside; a wiring mechanism arranged in the wiring mechanism accommodating cavity and slidably connected with the wiring mechanism accommodating cavity bottom wall of the wiring mechanism accommodating cavity; a hanging piece with the bottom part slidably connected with the wiring mechanism accommodating cavity bottom wall and the upper part extending out of the upper surface of the slide rail body through the seat pan connecting plate sliding groove; characterized in that the wiring mechanism comprises a first wiring harness accommodating device and a second wiring harness accommodating device, the middle part of the first and second wiring harness accommodating devices is slidably connected with the wiring mechanism accommodating cavity, the left end of the first and second wiring harness accommodating devices is connected with the hanging piece, and the right end is connected with a redundant wiring harness storage box fixed on the floor of the car cabin and accompanying the left side of the slide rail body.

[0010] In a specific embodiment of the present application, slide rail body fixing bolt holes are arranged in the middle part of the wiring mechanism accommodating cavity bottom wall of the wiring mechanism accommodating cavity of the slide rail body in the length direction, the slide rail body is fixed with the floor of the car cabin by slide rail body fixing bolts at positions corresponding to the slide rail body fixing bolt holes, a support block front sliding platform is arranged in front of the wiring mechanism accommodating cavity bottom wall in the length direction, and a support block rear sliding platform is arranged behind the wiring mechanism accommodating cavity bottom wall and parallel to the support block front sliding platform in the length direction; the bottom part of the first wiring harness accommodating device and the second wiring harness accommodating device of the wiring mechanism is slidably connected with the support block front sliding platform and the support block rear sliding platform respectively, the front bottom part of the hanging piece is slidably connected with the support block front sliding platform, and the rear bottom part of the hanging piece is slidably connected with the support block rear sliding platform.

[0011] In another specific embodiment of the present application, the front bottom part of the hanging piece is provided with a hanging piece front sliding support block, and the rear bottom part of the hanging piece is provided with a hanging piece rear sliding support block, the hanging piece front sliding support block is slidably connected with the support block front sliding platform, and the hanging piece rear sliding support block is slidably connected with the support block rear sliding platform.

[0012] In still another specific embodiment of the present application, an upper slide rail front anti-backlash device roller cavity is formed on the cavity top wall of the wire laying mechanism accommodating cavity and corresponds to the front top of the length direction of the wire laying mechanism accommodating cavity, an upper slide rail rear anti-backlash device roller cavity is formed on the rear top of the length direction of the wire laying mechanism accommodating cavity, a hanging piece limiting guide strip is formed on the lower part of the upper slide rail front anti-backlash device roller cavity rear cavity wall and along the length direction of the upper slide rail front anti-backlash device roller cavity rear cavity wall, a hanging piece front shoulder extending from the left side to the right side of the hanging piece is formed on the middle part of the height direction of the hanging piece, and a hanging piece rear shoulder extending from the left side to the right side of the hanging piece is formed on the middle part of the height direction of the hanging piece, a hanging piece limiting guide strip guide groove is formed on the upper surface of the hanging piece front shoulder, and the hanging piece limiting guide strip and the hanging piece limiting guide strip guide groove form a sliding pair.

[0013] In still another specific embodiment of the present application, a hanging piece front wire harness cavity extending from the left side to the right side of the hanging piece is formed on the front lower part of the length direction of the hanging piece, and a hanging piece rear wire harness cavity extending from the left side to the right side of the hanging piece is formed on the rear lower part of the length direction of the hanging piece, the hanging piece front and rear wire harness cavities correspond to each other and are connected by a transition cavity between the upper part of the facing side of the hanging piece front and rear wire harness cavities, and the transition cavity is communicated with the outside through a wire harness leading-out cavity formed on the upper part of the hanging piece.

[0014] In still another specific embodiment of the present application, a pair of chain link upper hinge shaft head ear plates extending leftward on the left side of the hanging piece front shoulder are formed on the hanging piece, a pair of chain link upper hinge shaft heads are formed on the upper surface of the pair of chain link upper hinge shaft head ear plates, a pair of chain link lower hinge shaft head ear plates extending leftward on the left side of the cavity bottom wall of the hanging piece front wire harness cavity are formed on the hanging piece, and a pair of chain link lower hinge shaft heads are formed on the surface of the pair of chain link lower hinge shaft head ear plates on the downward side thereof corresponding to the pair of chain link upper hinge shaft head ear plates; a main chain link upper hinge shaft head ear plate extending leftward on the left side of the hanging piece rear shoulder is formed on the hanging piece, a main chain link upper hinge shaft head is formed on the upper surface of the main chain link upper hinge shaft head ear plate, a main chain link lower hinge shaft head ear plate extending leftward on the left side of the cavity bottom wall of the hanging piece rear wire harness cavity is formed on the hanging piece, and a main chain link lower hinge shaft head is formed on the surface of the main chain link lower hinge shaft head ear plate on the downward side thereof corresponding to the main chain link upper hinge shaft head ear plate; the right end of the first wire harness accommodating device is hinged to the pair of chain link upper hinge shaft heads and the pair of chain link lower hinge shaft heads and communicated with the hanging piece front wire harness cavity, and the right end of the second wire harness accommodating device is hinged to the main chain link upper hinge shaft head and the main chain link lower hinge shaft head and communicated with the hanging piece rear wire harness cavity.

[0015] In a further specific embodiment of the present application, an upper slide rail connecting head for connecting with the upper slide rail of the automobile seat slide rail in use is formed on the upper right side outer wall of the hanging member in the height direction.

[0016] In a further specific embodiment of the present application, a hanging member reinforcing folded edge protruding from the outer surface of the hanging member is formed on the upper left side and the right side of the hanging member.

[0017] In a further specific embodiment of the present application, the first wire harness accommodating device is a secondary tank chain formed by a plurality of secondary link units connected in a loop, an upper secondary link unit upper hinge shaft head hinge seat is extended from the upper right side of the secondary link unit, the upper secondary link unit upper hinge shaft head hinge seat forms an upper secondary link unit upper hinge shaft head hinge seat hole, a lower secondary link unit lower hinge shaft head hinge seat is extended from the lower right side of the secondary link unit, the lower secondary link unit lower hinge shaft head hinge seat forms a lower secondary link unit lower hinge shaft head hinge seat hole, an upper secondary link unit upper hinge shaft head is extended from the upper left side of the secondary link unit, and a lower secondary link unit lower hinge shaft head is extended from the lower left side of the secondary link unit, the middle region of the secondary link unit is hollow and forms a secondary link unit wire harness accommodating cavity, the secondary link unit wire harness accommodating cavity is communicated with the front wire harness cavity of the hanging member, and a secondary link unit guide block is formed at the bottom of the secondary link unit for forming a sliding pair with the front guide platform of the support block, wherein: the upper secondary link unit upper hinge shaft head hinge seat hole of the first secondary link unit at one end of the secondary link unit facing the hanging member is hinged with the upper secondary link unit upper hinge shaft head, and the lower secondary link unit lower hinge shaft head hinge seat hole of the first secondary link unit is hinged with the lower secondary link unit lower hinge shaft head, the opposite sides of the upper portions of each two adjacent secondary link units are hinged with each other by the upper secondary link unit upper hinge shaft head hinge seat and the upper secondary link unit upper hinge shaft head, and the opposite sides of the lower portions of each two adjacent secondary link units are hinged with each other by the lower secondary link unit lower hinge shaft head hinge seat and the lower secondary link unit lower hinge shaft head, the upper portion and the lower portion of the last secondary link unit at the left end of the first wire harness accommodating device are hinged with the redundant wire harness storage box by the upper secondary link unit upper hinge shaft head and the lower secondary link unit lower hinge shaft head in the redundant wire harness storage box, the space between each two adjacent secondary link units forms a secondary link unit turning gap, the front wire harness is introduced from the redundant wire harness storage box and sequentially passes through the secondary link unit wire harness accommodating cavity, the front wire harness cavity of the hanging member, and the transition cavity, and is then introduced from the wire harness introduction cavity.

[0018] In still another specific embodiment of the present application, the second wire harness accommodating device is a main tank chain formed by a plurality of main link units connected in a loop, a main link unit upper articulation shaft head articulation seat is extended from the upper right side of the main link unit, the main link unit upper articulation shaft head articulation seat forms a main link unit upper articulation shaft head articulation seat hole, a main link unit lower articulation shaft head articulation seat is extended from the lower right side of the main link unit, the main link unit lower articulation shaft head articulation seat forms a main link unit lower articulation shaft head articulation seat hole, a main link unit upper articulation shaft head is extended from the upper left side of the main link unit, and a main link unit lower articulation shaft head is extended from the lower left side of the main link unit, the middle region of the main link unit is formed as a hollow main link unit wire harness accommodating cavity, the main link unit wire harness accommodating cavity is communicated with the rear wire harness cavity of the hanging piece, and a main link unit guide sliding block is formed at the bottom of the main link unit for forming a sliding pair with the rear guide sliding platform of the support block, wherein: the main link unit upper articulation shaft head articulation seat hole of the first main link unit at the end of the main link unit of the second wire harness accommodating device facing the hanging piece is articulated with the main link unit upper articulation shaft head, and the main link unit lower articulation shaft head articulation seat hole of the first main link unit is articulated with the main link unit lower articulation shaft head, the opposite sides of the upper portions of each two adjacent main link units are articulated with each other by the main link unit upper articulation shaft head articulation seat and the main link unit upper articulation shaft head, the opposite sides of the lower portions of each two adjacent main link units are articulated with each other by the main link unit lower articulation shaft head articulation seat and the main link unit lower articulation shaft head, the upper portion and the lower portion of the last main link unit at the left end of the second wire harness accommodating device are articulated with the redundant wire harness storage box by the main link unit upper articulation shaft head and the main link unit lower articulation shaft head in the redundant wire harness storage box, the space between each two adjacent main link units is formed as a main link unit turning gap, the rear wire harness is introduced from the redundant wire harness storage box and sequentially passes through the main link unit wire harness accommodating cavity, the rear wire harness cavity of the hanging piece, and the transition cavity, and is then introduced from the wire harness introduction cavity.

[0019] The technical effect of the technical scheme provided by the present application is that the first and second wire harness accommodating devices of the structure system of the wiring mechanism are arranged on the slide rail body of the automobile seat slide rail as a carrier, so that the automobile seat arranged on the movable slide rail can slide left and right relative to the slide rail body, meeting the adaptive folding and unfolding requirements of the wire harness during forward and backward adjustment of the automobile seat in use; the use life of the wire harness of the wiring mechanism is guaranteed due to the significant reduction in the filling rate of the wire harness in the wiring space; the overall structure is simple and compact, facilitating manufacturing and assembly and reflecting good economic efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 This is a structural diagram of an embodiment of the present invention; Figure 2 for Figure 1 The rear view of the mounting bracket is shown; Figure 3 for Figure 1 A detailed structural diagram of the first wire harness receiving device is shown; Figure 4 for Figure 1 A detailed structural diagram of the second wire harness receiving device is shown.

[0021] 1. Slide rail body; 11. Wire laying mechanism receiving cavity; 111. Slide rail body fixing bolt hole; 112. Support block front guide platform; 113. Support block rear guide platform; 114. Upper slide rail front backlash elimination device roller cavity; 1141. Upper slide rail front backlash elimination device roller cavity rear cavity wall; 11411. Hanging component limiting guide strip; 115. Upper slide rail rear backlash elimination device roller cavity; 12. Chair seat basin connecting plate sliding groove; 2. Wire laying mechanism; 21. First wire harness receiving device; 211. Secondary link unit; 2111. Secondary link unit upper hinge shaft head hinge seat; 21111. Secondary link unit upper hinge shaft head hinge seat hole; 2112. Secondary link unit lower hinge shaft head hinge seat; 21121. Secondary link unit lower hinge shaft head hinge seat hole; 2113. 2114. Lower hinged shaft of secondary link unit; 2115. Wiring harness receiving cavity of secondary link unit; 2116. Guide slider of secondary link unit; 212. Turning clearance port of secondary link unit; 22. Second wiring harness receiving device; 221. Main link unit; 2211. Hinge seat of upper hinged shaft of main link unit; 22111. Hinge seat hole of upper hinged shaft of main link unit; 2212. Hinge seat of lower hinged shaft of main link unit; 22121. Hinge seat hole of lower hinged shaft of main link unit; 2213. Upper hinged shaft of main link unit; 2214. Lower hinged shaft of main link unit; 2215. Wiring harness receiving cavity of main link unit; 2216. Guide slider of main link unit; 222. 3. Connector; 31. Connector front guide support block; 32. Connector rear guide support block; 33. Connector front shoulder; 331. Connector limiting guide strip groove; 332. Secondary link upper hinge shaft head ear plate; 3321. Secondary link upper hinge shaft head; 333. Secondary link lower hinge shaft head ear plate; 3331. Secondary link lower hinge shaft head; 34. Connector rear shoulder; 341. Main link upper hinge shaft head ear plate; 3411. Main link upper hinge shaft head; 342. Main link lower hinge shaft head ear plate; 3421. Main link lower hinge shaft head; 35a. Connector front wire harness cavity; 35b. 35c. Rear harness cavity of the connector, 35d. Transition cavity, 36. Upper slide rail connector, 37. Reinforcing fold of the connector. DETAILED DESCRIPTION

[0022] In order to more clearly understand the technical essence and beneficial effects of the present application, the applicant will make a detailed description in the following manner by way of examples, but the description of the examples is not a limitation on the technical solutions of the present application, and any equivalent transformation which is only formal but not substantial according to the concept of the present application should be regarded as the technical solution scope of the present application.

[0023] In the following description, the directional or positional concepts of up, down, left, right, front and back are all based on the position of the vehicle seat in the normal use state, and thus cannot be understood as a special limitation on the technical solutions provided by the present application. Figure 1 In the following description, the directional or positional concepts of up, down, left, right, front and back are all based on the position of the vehicle seat in the normal use state, and thus cannot be understood as a special limitation on the technical solutions provided by the present application.

[0024] Please refer to Figure 1 , which shows a slide rail body 1 fixed on the floor of the vehicle cabin in the use state, a wire laying mechanism accommodating cavity 11 extending through the left end to the right end of the slide rail body 1 is formed in the length direction of the slide rail body 1, i.e. the two ends of the wire laying mechanism accommodating cavity 11 are not closed, and a seat pan connecting plate sliding groove 12 for connecting the wire laying mechanism accommodating cavity 11 with the outside is formed on the upper surface of the slide rail body 1 in the length direction of the slide rail body 1 and extends from the left end to the right end of the slide rail body 1; a wire laying mechanism 2 is shown, which is arranged in the wire laying mechanism accommodating cavity 11 and moves left and right with the wire laying mechanism accommodating cavity bottom wall of the wire laying mechanism accommodating cavity 11 to form a sliding pair; a hanging piece 3 is shown, the bottom of which forms a sliding pair with the wire laying mechanism accommodating cavity bottom wall of the wire laying mechanism accommodating cavity 11, and the upper part of the hanging piece 3 protrudes out of the upper plane of the slide rail body 1 through the aforementioned seat pan connecting plate sliding groove 12.

[0025] The technical key point of the technical solutions provided by the present application is that the aforementioned wire laying mechanism 2 includes a first wire harness accommodating device 21 and a second wire harness accommodating device 22, the middle part of the first and second wire harness accommodating devices 21, 22 forms a sliding pair with the wire laying mechanism accommodating cavity 11, the left end of the first and second wire harness accommodating devices 21, 22 is connected with the aforementioned hanging piece 3, and the right end is connected with a redundant wire harness storage box connected with the left side of the slide rail body 1 and fixed on the floor of the vehicle cabin.

[0026] According to professional common knowledge, Figure 1 The slide rail body 1 shown is essentially a lower slide rail of a vehicle seat (also called “outer slide rail of a vehicle seat” or “static slide rail of a vehicle seat”), and in the actual use state, there is a pair of the same structure and parallel to each other, and thus in Figure 1Although only one slide rail body 1 is shown, it will not cause confusion to understand the present application. In addition, the typical example of the above-mentioned redundant wire harness storage box can be seen in CN115123030A (An electric long slide rail for a car seat), which shows a wiring box, although it does not give the main and auxiliary tank chains that will be described in detail below, but according to the example of drawing an inference: when the car seat is adjusted forward, the wire harness will be stretched, that is, it will be released from the redundant wire harness storage box, and vice versa. It is stored in the redundant wire harness storage box, and the redundant wire harness storage box is preferably arranged between the left end of the slide rail body 1, parallel to the slide rail body 1.

[0027] As shown by Figure 1 The length direction of the middle part of the wire laying mechanism containing cavity bottom wall of the wire laying mechanism containing cavity 11 of the aforementioned slide rail body 1 is provided with a slide rail body fixing bolt hole 111, and the slide rail body 1 is fixed with the aforementioned car body floor at the position corresponding to the slide rail body fixing bolt hole 111 by the slide rail body fixing bolt which is not shown in the figure. A support block front guide platform 112 is formed on the front side of the wire laying mechanism containing cavity 11 of the wire laying mechanism containing cavity bottom wall in the length direction, and a support block rear guide platform 113 parallel to the support block front guide platform 112 in the length direction and located on the same horizontal plane is formed on the rear side; The bottom of the first wire harness containing device 21 and the second wire harness containing device 22 of the aforementioned wire laying mechanism 2 respectively form a sliding pair with the aforementioned support block front guide platform 112 and support block rear guide platform 113; The front side bottom of the aforementioned hanging piece 3 forms a sliding pair with the aforementioned support block front guide platform 112, and the rear side bottom of the hanging piece 3 forms a sliding pair with the aforementioned support block rear guide platform 113.

[0028] The front side bottom of the aforementioned hanging piece 3 is provided with a hanging piece front guide support block 31, and the rear side bottom of the hanging piece 3 is provided with a hanging piece rear guide support block 32. The hanging piece front guide support block 31 forms a sliding pair with the aforementioned support block front guide platform 112, and the hanging piece rear guide support block 32 forms a sliding pair with the aforementioned support block rear guide platform 113.

[0029] Further, on the top wall of the wire coating mechanism accommodating cavity 11 and corresponding to the front side top of the length direction of the wire coating mechanism accommodating cavity 11, an upper slide rail front anti-backlash device roller cavity 114 is formed, while on the top of the rear side of the length direction of the wire coating mechanism accommodating cavity 11, an upper slide rail rear anti-backlash device roller cavity 115 is formed, on the rear cavity wall 1141 of the upper slide rail front anti-backlash device roller cavity 114 and along the length direction of the rear cavity wall 1141, a hanging piece limiting guide strip 11411 is formed, on the middle front side of the height direction of the aforementioned hanging piece 3, a hanging piece front shoulder 33 extending from the left side to the right side of the hanging piece 3 is formed, while on the middle rear side of the height direction, a hanging piece rear shoulder 34 also extending from the left side to the right side of the hanging piece 3 is formed, on the upper surface of the hanging piece front shoulder 33, a hanging piece limiting guide strip guide groove 331 is formed, and the aforementioned hanging piece limiting guide strip 11411 and the hanging piece limiting guide strip guide groove 331 form a sliding pair.

[0030] Further, on the front lower part of the length direction of the aforementioned hanging piece 3, a hanging piece front wire harness cavity 35a extending from the left side to the right side of the hanging piece 3 is formed, while on the rear lower part of the length direction, a hanging piece rear wire harness cavity 35b extending from the left side to the right side of the hanging piece 3 is formed, the hanging piece front and rear wire harness cavities 35a, 35b correspond to each other and are connected by a transition cavity 35c between the upper opposite sides of the hanging piece front and rear wire harness cavities 35a, 35b, and the transition cavity 35c is connected to the outside through a wire harness leading-out cavity 35d formed on the upper part of the hanging piece 3.

[0031] Please refer to Figure 2 and in combination with Figure 1On the aforementioned hanger 3 and on the left side of the aforementioned hanger front shoulder 33, a pair of upper link articulation shaft head lugs 332 are extended leftward, and a pair of upper link articulation shaft head lugs 332 are formed on the upper surface of the pair of upper link articulation shaft head lugs 332; on the left side of the cavity bottom wall of the aforementioned hanger front wire harness cavity 35a, a pair of lower link articulation shaft head lugs 333 are extended leftward, and the pair of lower link articulation shaft head lugs 333 correspond to the pair of upper link articulation shaft head lugs 332 and are formed on the surface of the lower side of the pair of lower link articulation shaft head lugs 333; on the hanger 3 and on the left side of the aforementioned hanger rear shoulder 34, a pair of main link articulation shaft head lugs 341 are extended leftward, and a pair of main link articulation shaft head lugs 341 are formed on the upper surface of the pair of main link articulation shaft head lugs 341; on the left side of the cavity bottom wall of the aforementioned hanger rear wire harness cavity 35b, a pair of main link articulation shaft head lugs 342 are extended leftward, and the pair of main link articulation shaft head lugs 342 correspond to the pair of main link articulation shaft head lugs 341 and are formed on the surface of the lower side of the pair of main link articulation shaft head lugs 342; the right end of the aforementioned first wire harness containing device 21 is articulated with the pair of upper link articulation shaft head lugs 332 and the pair of lower link articulation shaft head lugs 333 and communicates with the aforementioned hanger front wire harness cavity 35a, and the right end of the aforementioned second wire harness containing device 22 is articulated with the pair of main link articulation shaft head lugs 341 and the pair of main link articulation shaft head lugs 342 and communicates with the aforementioned hanger rear wire harness cavity 35b.

[0032] As shown by Figure 1 and Figure 2 On the right side of the upper part of the aforementioned hanger 3 in the height direction, an upper rail connecting head 36 is formed on the outer wall, which is used to connect with the upper rail of the automobile seat slide rail in the use state.

[0033] On the left side and the right side of the upper part of the aforementioned hanger 3, a hanger reinforcing flange 37 is formed on the outer surface of the hanger 3.

[0034] The typical example of the aforementioned upper rail front and rear anti-backlash device roller cavity 114, 115 can be referred to in the patent application for invention published by the applicant as CN119796009A (High-strength electric slide rail for automobile seat), which shows the front and rear anti-backlash mechanisms. Taking the front anti-backlash mechanism as an example, the roller of the structural system of the front anti-backlash mechanism cooperates with the front sliding fit anti-backlash groove of the movable rail, which corresponds to the upper rail front anti-backlash device roller cavity 114 of the present application, so the applicant will not repeat it.

[0035] For details Figure 3 and in combination Figure 1 and Figure 2, the first wire harness accommodating device 21 is a sub-tank chain structure composed of a plurality of sub-link units 211 connected in a loop, the sub-link unit 211 has a sub-link unit upper articulation shaft head articulation seat 2111 extending from the upper right side of the sub-link unit 211, the sub-link unit upper articulation shaft head articulation seat 2111 is composed of a sub-link unit upper articulation shaft head articulation seat hole 21111, the sub-link unit 211 has a sub-link unit lower articulation shaft head articulation seat 2112 extending from the lower right side of the sub-link unit 211, the sub-link unit lower articulation shaft head articulation seat 2112 is composed of a sub-link unit lower articulation shaft head articulation seat hole 21121, the sub-link unit 211 has a sub-link unit upper articulation shaft head 2113 extending from the upper left side of the sub-link unit 211, and a sub-link unit lower articulation shaft head 2114 extending from the lower left side of the sub-link unit 211, the middle region of the sub-link unit 211 is hollow and composed of a sub-link unit wire harness accommodating cavity 2115, the sub-link unit wire harness accommodating cavity 2115 is in communication with the front wire harness cavity 35a of the hanging piece 3, and the bottom of the sub-link unit 211 is composed of a sub-link unit guide block 2116 for forming a sliding pair with the front guide block guide platform 112 of the support block, wherein: the first end of the sub-link unit 211 of the first wire harness accommodating device 21 facing the hanging piece 3 is articulated with the sub-link unit upper articulation shaft head articulation seat hole 21111 of the first sub-link unit 211 and the sub-link upper articulation shaft head 3321, the sub-link unit lower articulation shaft head articulation seat hole 21121 of the first sub-link unit 211 is articulated with the sub-link lower articulation shaft head 3331, the upper parts of each two adjacent sub-link units 211 are articulated with each other by the sub-link unit upper articulation shaft head articulation seat 2111 and the sub-link unit upper articulation shaft head 2113, the lower parts of each two adjacent sub-link units 211 are articulated with each other by the sub-link unit lower articulation shaft head articulation seat 2112 and the sub-link unit lower articulation shaft head 2114, the upper part and the lower part of the last sub-link unit 211 of the left end of the first wire harness accommodating device 21 are articulated with the redundant wire harness storage box by the sub-link unit upper articulation shaft head 2113 and the sub-link unit lower articulation shaft head 2114 in the redundant wire harness storage box, the space between each two adjacent sub-link units 211 is composed of a sub-link unit turning and giving space 212, the front wire harness is introduced from the redundant wire harness storage box, and then passes through the sub-link unit wire harness accommodating cavity 2115, the front wire harness cavity 35a of the hanging piece, and the transition cavity 35c, and is finally introduced from the wire harness outlet cavity 35d.

[0036] The second wire harness accommodating device 22 is a main tank chain structure composed of a plurality of main link units 221 connected in a loop. The main link unit 221 has a main link unit upper articulation shaft head articulation seat 2211 extending from the upper right side thereof, which is provided with a main link unit upper articulation shaft head articulation seat hole 22111. The main link unit 221 also has a main link unit lower articulation shaft head articulation seat 2212 extending from the lower right side thereof, which is provided with a main link unit lower articulation shaft head articulation seat hole 22121. The main link unit 221 has a main link unit upper articulation shaft head 2213 extending from the upper left side thereof, and a main link unit lower articulation shaft head 2214 extending from the lower left side thereof. The middle region of the main link unit 221 is hollow, and is provided with a main link unit wire harness accommodating cavity 2215, which is in communication with the rear wire harness cavity 35b of the hanger 3. The bottom of the main link unit 221 is provided with a main link unit guide block 2216, which is used to form a sliding pair with the rear guide platform 113 of the support block 5. The main link unit upper articulation shaft head articulation seat hole 22111 of the first main link unit 221 at the end of the main link unit 221 facing the hanger 3 is articulated with the main link upper articulation shaft head 3421. The main link unit lower artication shaft head articulation seat hole 22121 of the first main link unit 221 is articulated with the main link lower articulation shaft head 3431. The upper portions of two adjacent main link units 221 are articulated with each other by the main link unit upper artication shaft head articulation seat 2211 and the main link unit upper articulation shaft head 2213. The lower portions of two adjacent main link units 221 are articulated with each other by the main link unit lower artication shaft head articulation seat 2212 and the main link unit lower articulation shaft head 2214. The upper portion and the lower portion of the last main link unit 221 at the left end of the second wire harness accommodating device 22 are articulated with the redundant wire harness storage box by the main link unit upper artication shaft head 2213 and the main link unit lower artication shaft head 2214, respectively. The space between two adjacent main link units 221 is a main link unit turning gap 222. The rear wire harness is introduced from the redundant wire harness storage box, and then passes through the main link unit wire harness accommodating cavity 2215, the rear wire harness cavity 35b of the hanger 3, the transition cavity 35c, and is finally introduced from the wire harness outlet cavity 35d.

[0037] From Figure 3 And Figure 4 And in combination with Figure 1As illustrated, the opening distance of the turning clearance port 222 of the aforementioned main link unit is significantly larger than the opening distance of the turning clearance port 212 of the secondary link unit. This is because, in situations such as turning, the turning radius of the tank chain structure formed by the cyclic connection of multiple main link units 221 is larger than that of the tank chain structure formed by the cyclic connection of multiple secondary link units 211. This principle is similar to the outer and inner tracks at the bends of a track in athletics; otherwise, the consistent extension and retraction of the two track bundles, namely the aforementioned front and rear track bundles, cannot be achieved.

[0038] The front and rear wiring harnesses are led from a relatively concealed location on the vehicle floor, unlikely to be stepped on by a person's feet, to the aforementioned redundant wiring harness storage box. The front and rear wiring harnesses, which are destined for electrical operating controllers located in seat areas such as the seat armrests, front of the seat, and outer side of the seat, are split into two paths (one for the front and one for the rear) or two separate strands, running parallel (the more functions the seat has, the more wires are in the harness). One path originates from the redundant wiring harness storage box and passes through... The secondary link unit harness receiving cavity 2115, the front harness cavity 35a of the connector, and the transition cavity 35c lead out from the opening of the harness lead-out cavity 35d of the connector 3, and to the aforementioned electrical operation controller; another path leads out from the redundant harness storage box sequentially through the main link unit harness receiving cavity 2215, the rear harness cavity 35b of the connector, and the transition cavity 35c, and to the opening of the harness lead-out cavity 35d of the connector 3, and also to the aforementioned electrical operation controller. If the passenger needs to adjust the car seat forward or backward (taking the actual usage direction in the car as an example), they can simply operate the switch on the electrical operation controller, such as a touch button (the touch button for seat forward / backward adjustment usually has a double-headed arrow), using the conventional operating method. Similarly, when activating the heating function, back massage function, etc., the passenger can select the button on the electrical operation controller as needed, as the panel of the electrical operation controller displays prompts for using the corresponding function.

[0039] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. A long electric sliding rail structure for a car seat with a wiring function, comprising a rail body (1), which is fixed to the floor of the car body in use. A wiring mechanism receiving cavity (11) is formed in the length direction of the rail body (1) extending from the left end to the right end of the rail body. A seat basin connecting plate extending from the left end to the right end of the rail body (1) is formed on the upper surface of the rail body (1) in the length direction for communicating with the wiring mechanism receiving cavity (11) and the outside. The device comprises: a groove (12); a wire-laying mechanism (2) disposed within a wire-laying mechanism receiving cavity (11) and slidingly moving with the bottom wall of the wire-laying mechanism receiving cavity (11); and a hook (3) whose bottom is slidingly connected with the bottom wall of the wire-laying mechanism receiving cavity (11), and whose upper part protrudes from the upper surface of the slide rail body (1) through the sliding groove (12) of the seat basin connecting plate. The device is characterized by: The wiring mechanism (2) includes a first wire harness receiving device (21) and a second wire harness receiving device (22). The middle part of the first and second wire harness receiving devices (21, 22) forms a sliding pair with the wiring mechanism receiving cavity (11). The left end of the first and second wire harness receiving devices (21, 22) is connected to the hook (3), and the right end is connected to the redundant wire harness storage box that accompanies the left side of the slide rail body (1) and is fixed to the carriage floor.

2. The electric long slide rail structure for automotive seats with wiring function according to claim 1, characterized in that: A rail body fixing bolt hole (111) is provided at a midpoint along the length of the bottom wall of the wiring mechanism receiving cavity (11) of the rail body (1). The rail body (1) is fixed to the car floor by the rail body fixing bolt at the position corresponding to the rail body fixing bolt hole (111). A support block front guide slide platform (112) is formed on the front side of the bottom wall of the wiring mechanism receiving cavity (11) along the length of the rail body (11), and a support block front guide slide platform (112) is formed on the rear side along the length of the support block front guide slide platform (112). The support block rear guide platform (113) is parallel in the degree direction and located on the same horizontal plane; the bottom of the first wire harness receiving device (21) and the second wire harness receiving device (22) of the wire laying mechanism (2) respectively form a sliding pair with the support block front guide platform (112) and the support block rear guide platform (113), the front bottom of the hook (3) forms a sliding pair with the support block front guide platform (112), and the rear bottom of the hook (3) forms a sliding pair with the support block rear guide platform (113).

3. The electric long slide rail structure for automotive seats with wiring function according to claim 2, characterized in that: The front bottom of the hook (3) is provided with a front guide slide support block (31), and the rear bottom of the hook (3) is provided with a rear guide slide support block (32). The front guide slide support block (31) and the front guide slide platform (112) of the support block form a sliding pair, and the rear guide slide support block (32) and the rear guide slide platform (113) of the support block form a sliding pair.

4. The electric long slide rail structure for automotive seats with wiring function according to claim 1, characterized in that: An upper slide rail front backlash elimination device roller cavity (114) is formed on the top wall of the wire laying mechanism receiving cavity (11) and on the front top side corresponding to the length direction of the wire laying mechanism receiving cavity (11). An upper slide rail rear backlash elimination device roller cavity (115) is formed on the rear top side corresponding to the length direction of the wire laying mechanism receiving cavity (11). On the rear cavity wall (1141) of the upper slide rail front backlash elimination device roller cavity (114) and at the lower part along the length direction of the rear cavity wall (1141) of the upper slide rail front backlash elimination device roller cavity (1141), a... A connector limiting guide strip (11411) has a front shoulder (33) extending from the left side to the right side of the connector (3) on the front side of the middle part in the height direction, and a rear shoulder (34) extending from the left side to the right side of the connector (3) on the rear side of the middle part in the height direction. A connector limiting guide strip groove (331) is formed on the upper surface of the front shoulder (33). The connector limiting guide strip (11411) and the connector limiting guide strip groove (331) form a sliding pair.

5. The electric long slide rail structure for automotive seats with wiring function according to claim 1, characterized in that: The lower front part of the connector (3) in the length direction forms a front wire harness cavity (35a) extending from the left side to the right side of the connector (3), and the lower rear part in the length direction forms a rear wire harness cavity (35b) extending from the left side to the right side of the connector (3). The front and rear wire harness cavities (35a, 35b) correspond to each other and are connected by a transition cavity (35c) located between the upper opposing sides of the front and rear wire harness cavities (35a, 35b). The transition cavity (35c) communicates with the outside through a wire harness lead-out cavity (35d) formed in the upper part of the connector (3).

6. The electric long slide rail structure for automotive seats with wiring function according to claim 5, characterized in that: On the hook member (3) and extending to the left on the left side of the front shoulder (33) of the hook member, there is a secondary link hinge head ear plate (332). A secondary link hinge head (3321) is formed on the upper surface of the secondary link hinge head ear plate (332). On the left side of the bottom wall of the front wire harness cavity (35a) of the hook member, there is a secondary link lower hinge head ear plate (333). This secondary link lower hinge head ear plate (333) corresponds to the secondary link upper hinge head ear plate (332), and a secondary link lower hinge head (3331) is formed on its downward-facing surface. On the hook member (3) and extending to the left on the left side of the rear shoulder (34) of the hook member, there is a main link hinge head ear plate (341). A secondary link hinge head ear plate (341) is formed on the upper surface of the main link hinge head ear plate (341). A main link upper hinge head (3411) extends to the left on the left side of the bottom wall of the rear wire harness cavity (35b) of the connector, and a main link lower hinge head ear plate (342) is formed on its downward-facing surface, corresponding to the main link upper hinge head ear plate (341). The right end of the first wire harness receiving device (21) is hinged to the secondary link upper hinge head (3321) and the secondary link lower hinge head (3331) and communicates with the front wire harness cavity (35a) of the connector. The right end of the second wire harness receiving device (22) is hinged to the main link upper hinge head (3411) and the main link lower hinge head (3421) and communicates with the rear wire harness cavity (35b) of the connector.

7. The electric long slide rail structure for automotive seats with wiring function according to any one of claims 1 to 6, characterized in that: An upper slide rail connector (36) is formed on the upper right outer wall of the hanger (3) in the height direction for connecting with the upper slide rail of the car seat slide rail in the use state.

8. The electric long slide rail structure for automotive seats with wiring function according to claim 7, characterized in that: On the upper left and right sides of the hook (3), there are hook reinforcement folds (37) that protrude from the outer surface of the hook (3).

9. The electric long slide rail structure for automotive seats with wiring function according to claim 6, characterized in that: The first wire harness receiving device (21) is a secondary tank chain composed of a plurality of structurally identical secondary link units (211) connected in a loop manner. A secondary link unit upper hinge head hinge seat (2111) extends from the upper right side of the secondary link unit (211), and this secondary link unit upper hinge head hinge seat (2111) forms a secondary link unit upper hinge head hinge seat hole (21111). A secondary link unit lower hinge head hinge seat (2112) extends from the lower right side of the secondary link unit (211), and this secondary link unit lower hinge head hinge seat (2112) forms a secondary link unit lower hinge head hinge seat hole (21121). (211) An upper hinge head (2113) of a secondary link unit extends from the upper left side, while a lower hinge head (2114) of a secondary link unit extends from the lower left side. The middle region of the secondary link unit (211) is configured as a hollow secondary link unit wire harness receiving cavity (2115), which communicates with the front wire harness cavity (35a) of the hook. At the bottom of the secondary link unit (211), a secondary link unit guide block (2116) is configured to form a sliding pair with the front guide sliding platform (112) of the support block. The first secondary link unit (211) of the secondary link unit (211) that forms the first wire harness receiving device (21) faces the hook (3). The upper hinge head hinge seat hole (21111) of the secondary link unit (211) is hinged to the upper hinge head (3321) of the secondary link, while the lower hinge head hinge seat hole (21121) of the first secondary link unit (211) is hinged to the lower hinge head (3331) of the secondary link. The upper facing sides of each pair of adjacent secondary link units (211) are hinged to each other by the upper hinge head hinge seat (2111) and the upper hinge head (2113) of the secondary link unit, while the lower facing sides of each pair of adjacent secondary link units (211) are hinged to each other by the lower hinge head hinge seat (2112) and the lower hinge head of the secondary link unit. The upper and lower parts of the last sub-link unit (211) at the left end of the first wire harness receiving device (21) are respectively hinged to the redundant wire harness receiving and storage box through the upper hinged shaft head (2113) and the lower hinged shaft head (2114) of the sub-link unit. The space between each pair of adjacent sub-link units (211) forms a sub-link unit turning clearance opening (212). The front wire harness is introduced from the redundant wire harness receiving and storage box and passes sequentially through the sub-link unit wire harness receiving cavity (2115), the front wire harness cavity (35a) of the connector, and the transition cavity (35c) until it is led out from the wire harness lead-out cavity (35d).

10. The electric long slide rail structure for automotive seats with wiring function according to claim 6, characterized in that: The second wire harness receiving device (22) is a main tank chain composed of a plurality of main chain link units (221) with identical structures connected in a loop. A main chain link unit upper hinge head hinge seat (2211) extends from the upper right side of the main chain link unit (221), and this main chain link unit upper hinge head hinge seat (2211) has a main chain link unit upper hinge head hinge seat hole (22111). A main chain link unit lower hinge head hinge seat (2212) extends from the lower right side of the main chain link unit (221), and this main chain link unit lower hinge head hinge seat (22121) has a main chain link unit lower hinge head hinge seat hole (22121). (221) A main link unit upper hinge head (2213) extends from the upper left side, and a main link unit lower hinge head (2214) extends from the lower left side. The middle region of the main link unit (221) is configured as a hollow main link unit wire harness receiving cavity (2215), which communicates with the rear wire harness cavity (35)b of the hook. At the bottom of the main link unit (221), a main link unit guide block (2216) is configured to form a sliding pair with the rear guide platform (113) of the support block. The first main link unit (221) of the main link unit (221) that forms the second wire harness receiving device (22) facing the hook (3) is... The hinge seat hole (22111) of the main link unit (221) is hinged to the upper hinge head (3421) of the main link unit, while the hinge seat hole (22121) of the lower hinge head of the first main link unit (221) is hinged to the lower hinge head (3431) of the main link unit. The upper facing sides of each pair of adjacent main link units (221) are hinged to each other by the upper hinge head hinge seat (2211) and the upper hinge head (2213) of the main link unit, while the lower facing sides of each pair of adjacent main link units (221) are hinged to each other by the lower hinge head hinge seat (2212) and the lower hinge head (3431) of the main link unit. The upper and lower parts of the last main link unit (221) at the left end of the second wire harness receiving device (22) are respectively hinged to the redundant wire harness receiving and storage box through the upper hinged shaft head (2213) and the lower hinged shaft head (2214) of the main link unit. The space between each pair of adjacent main link units (221) forms the main link unit turning clearance opening (222). The rear wire harness is introduced from the redundant wire harness receiving and storage box and passes sequentially through the main link unit wire harness receiving cavity (2215), the rear wire harness cavity (35b) of the connector and the transition cavity (35c) until it is led out from the wire harness lead-out cavity (35d).

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