CN218750423U

CN218750423U - Dual-motor driven sliding rail device of automobile seat

Info

Publication number: CN218750423U
Application number: CN202223607730.7U
Authority: CN
Inventors: 邹耀忠; 杨广; 曹凯
Original assignee: Jiangsu Zhongming Xianghe Seiko Co ltd
Current assignee: Jiangsu Zhongming Xianghe Seiko Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-03-28
Anticipated expiration: 2032-12-30

Abstract

A double-motor driven slide rail device of an automobile seat comprises a pair of fixed slide rails, wherein the fixed slide rails are connected with inner slide rails in a sliding manner, and the inner slide rails are arranged at the tops of the fixed slide rails; a screw rod is further fixed in the inner cavity of the fixed slide rail, a vertically arranged slide frame plate is fixed on the inner slide rail, a driving motor is installed in the middle of the slide frame plate, the driving motor is provided with a transmission shaft, a transversely arranged gear box is further arranged on the screw rod in a penetrating mode, the gear box is fixed with the inner slide rail, and the transmission shaft of the driving motor extends downwards and penetrates through the inner slide rail to extend into the inner cavity of the fixed slide rail to be in transmission connection with a transmission assembly in the gear box; the upper portion of fixed slide rail still is equipped with the dust excluder subassembly, and the dust excluder subassembly includes a pair of main part dust excluder, a pair of dust excluder strengthening frame and a plurality of dust excluder supports. The advantages are that: the internal structure is simple and compact, the driving motors on the two sides independently exist, the running safety of the slide rail is improved, the running noise is reduced, the comfort is improved, the strength is high, and the application range is wide; the space is saved, and the installation efficiency is improved.

Description

Dual-motor driven sliding rail device of automobile seat

Technical Field

The utility model belongs to the technical field of car seat accessory, concretely relates to car seat's two motor drive's slide rail device.

Background

With the continuous development of the existing economic society, people put higher and higher requirements on the comfort of vehicle riding, and the most intuitive feeling influencing the comfort of passengers is the comfort of the passengers when the passengers sit on the seats in the process of driving or riding the automobiles. The automobile seat slide rail device has the functions of changing the front and rear positions of the seat and locking, can improve the space size of the front part of the seat, effectively improves the comfort and the operation convenience of the seat, and facilitates passengers to enter the automobile. With the continuous progress of the electric technology, the position adjusting mode of the vehicle seat is also changed from a manual adjusting mode to an electric adjusting mode which is more convenient in technology. Most of the existing electric sliding rail devices are provided with a pair of fixed sliding rails arranged on a vehicle body bottom plate, the two fixed sliding rails are respectively corresponding to the left side and the right side of the bottom of a vehicle seat, an upper sliding rail is connected to the fixed sliding rails in a sliding manner, the upper sliding rail is connected with the vehicle seat, a gear box and a lead screw which are connected in a transmission manner are further arranged in the fixed sliding rails, a motor support which extends transversely is further arranged between the two fixed sliding rails, the motor support is generally positioned above the sliding rails on the left side and the right side, a motor is arranged on the motor support, the motor is respectively connected with the gear boxes on the left side and the right side through a motor shaft, the motor drives the gear box to move back and forth on the lead screw and realize the movement of the upper sliding rail connected with the gear box, and therefore the adjustment of the front position and the rear position of the vehicle seat is realized. However, in the conventional sliding rail device, a single driving motor is arranged to drive the gear boxes on the two sides to realize the movement of the upper sliding rail, so that a plurality of problems exist: on one hand, the parts have complex structures, the number of the parts is large, more space is occupied, and the transverse support is required to be arranged between the sliding rails on the two sides to arrange the motor, so that the space at the bottom of the seat can be greatly occupied, when foreign matters enter, the risk of mutual interference among the sliding rails, the motor, the transverse support and a motor shaft is existed, the operation safety risk is increased, on the other hand, the sliding rails on the two sides are driven by the single motor to move, the shaking and the obvious pause and contusion can be generated when the sliding rails start to work, meanwhile, the motor generates heat obviously in the working process, larger working abnormal noise exists, the power loss is larger in the operation process, the output of larger torque can not be ensured, and the operation reliability is poorer; in addition, because the open slot has been seted up mostly on the fixed slide rail of current, and often lack effectual protection component on the open slot, make inside part direct and external space direct contact, in case have foreign matter or dust to enter into during the fixed slide rail through the open slot, will certainly lead to the fact the influence to the inside part of fixed slide rail, with last slide rail mutual interference or even disturb the normal operating of inside part, and fixed slide rail upper portion constitutes the open slot, cause vehicle body floor's unevenness after the installation, influence holistic pleasing to the eye and overall arrangement.

In addition, in view of the above, there is a need for a reasonable improvement of the existing slide rail device. The applicant has made an advantageous design for this purpose, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact structure, the protection nature is good, application scope is wide, thereby help effectively promoting the drive efficiency and reducing the abnormal sound noise through abandoning original two sets of slide rails and adopting single motor to drive the unilateral slide rail respectively by same motor drive's drive mode, thereby be favorable to providing good protection and promoting the automobile seat's of the pleasing to the eye clean and tidy degree of vehicle body bottom plate double motor drive's slide rail device through setting up dustproof subassembly on fixed slide rail to fixed slide rail inside.

The utility model aims to achieve the purpose, and discloses a double-motor-driven slide rail device of an automobile seat, which comprises a pair of fixed slide rails, wherein the fixed slide rails are all connected with an inner slide rail in a sliding manner, the fixed slide rails are internally provided with a fixed slide rail inner cavity, the upper parts of the fixed slide rails are provided with fixed slide rail open slots with upward openings, and the inner slide rails are arranged at the tops of the fixed slide rails and correspond to the positions of the fixed slide rail open slots; a screw rod which extends along the length direction of the fixed slide rail is fixedly arranged in the inner cavity of the fixed slide rail, a vertically arranged slide frame plate is fixedly connected to the inner slide rail, a driving motor is fixedly arranged in the middle of the slide frame plate, the driving motor is connected with a transmission shaft which extends downwards, a gear box which is in transmission connection with the screw rod and is transversely arranged is further arranged on the screw rod in a penetrating manner, the gear box is fixedly connected with the inner slide rail, and the transmission shaft of the driving motor extends downwards and penetrates through the inner slide rail to extend into the inner cavity of the fixed slide rail and is in transmission connection with a transmission assembly in the gear box; the upper portion of fixed slide rail still is provided with a dust strip subassembly in the position department corresponding to fixed slide rail open slot, this dust strip subassembly is including a pair of main part dust strip, a pair of dust strip strengthening frame and a plurality of dust strip support, a pair of dust strip strengthening frame is settled respectively in the top both sides position department of fixed slide rail, two main part dust strips are then settled on the dust strip strengthening frame that corresponds separately and are realized corresponding sheltering from of fixed slide rail open slot, a plurality of dust strip supports are then connected on the side board of fixed slide rail, and a plurality of dust strip supports are realized being connected with the main part dust strip that corresponds separately, thereby realize the location installation of main part dust strip and fixed slide rail.

In a specific embodiment of the present invention, the fixed slide rail is a square tube structure and has an upward opening, the fixed slide rail has a fixed slide rail bottom plate extending along its length direction, the fixed slide rail also has fixed slide rail side plates disposed on both sides of the fixed slide rail bottom plate, and a fixed slide rail bending portion is respectively disposed at the top edge portions of the two fixed slide rail side plates, the cross section of the fixed slide rail bending portion is an "U" shape structure with the downward opening, and the left and right side edge portions of the inner slide rail length direction also respectively form an inner slide rail bending portion, the cross section of the inner slide rail bending portion is a "U" shape structure with the upward opening, and the inner slide rail bending portions on both sides of the inner slide rail are respectively matched with the fixed slide rail bending portions corresponding to each other and realize the sliding fit of the inner slide rail and the fixed slide rail.

In another specific embodiment of the present invention, the dust-proof strip reinforcing frame of the dust-proof strip assembly is of L-shaped plate structure and is disposed on the bending portion of the corresponding fixed slide rail, and a dust-proof strip reinforcing frame supporting seat is further disposed at a position below the end portions of the two ends of the two dust-proof strip reinforcing frames in the length direction, the dust-proof strip reinforcing frame supporting seat is positioned and mounted on the bottom plate of the fixed slide rail, and two the main dust-proof strip is disposed on the two dust-proof strip reinforcing frames, and the two main dust-proof strips both include a horizontal main dust-proof strip transverse plate and a vertical main dust-proof strip plate which is disposed at the bottom of the main dust-proof strip transverse plate, the main dust-proof strip transverse plates of the two main dust-proof strips are disposed on the upper portion of the open slot of the fixed slide rail and shield the open slot of the fixed slide rail together, and the two main dust-proof strips are disposed on the fixed slide rail at intervals and along the vertical direction, and the top end portions of the dust-proof strip supports are connected to the corresponding main dust-proof strips on the fixed slide rail.

In another specific embodiment of the present invention, a front screw support and a rear screw support are respectively disposed at front and rear positions of the screw in the length direction, front and rear ends of the screw in the length direction respectively penetrate through the front screw support and the rear screw support, and the front screw support and the rear screw support are both fixedly mounted on the bottom plate of the fixed slide rail through a fastener; and the rod body of the screw rod is also provided with a screw rod guide sleeve.

In another specific embodiment of the present invention, a transmission shaft cover plate is fixedly installed on a side surface of the sliding frame plate and at a position corresponding to a position below the driving motor, a transmission shaft positioning protective sleeve is further convexly installed at a middle portion of the transmission shaft cover plate, and a transmission shaft of the driving motor is inserted into the transmission shaft positioning protective sleeve; and a sliding frame plate connecting nut is installed at the top of the end parts of the two ends of the sliding frame plate in the length direction, and the sliding frame plate is fixedly connected with the automobile seat through the two sliding frame plate connecting nuts.

In yet another specific embodiment of the present invention, a gear box fixing bracket is further mounted on the gear box, the gear box fixing bracket is fixedly mounted on the inner slide rail to connect the gear box and the inner slide rail, and a distance exists between the gear box fixing bracket and the fixed slide rail bottom panel, and a plurality of locking bolts are further inserted into the fixed slide rail bottom panel of the fixed slide rail, and a locking bolt abdicating groove is further formed at the bottom part of the gear box fixing bracket, so that the nut of the locking bolt mounted on the fixed slide rail bottom panel can pass through the locking bolt abdicating groove during the moving process of the gear box fixing bracket, and the gear box fixing bracket can reciprocate at positions above the locking bolts; the gear box fixing support is provided with a gear box fixing support bottom panel and a pair of gear box fixing support side panels which are formed on the front side and the rear side of the gear box fixing support bottom panel, two gear box fixing support connecting bulges are formed at the top parts of the gear box fixing support side panels, inner slide rail positioning grooves are formed in the positions, corresponding to the gear box fixing support connecting bulges, of the inner slide rails, and the gear box fixing support connecting bulges are installed in the corresponding inner slide rail positioning grooves in a matched mode, so that the gear box fixing support is connected with the inner slide rail body in a positioning mode.

In a further specific embodiment of the present invention, the front and rear ends of the inner slide rail are respectively provided with an inner slide rail sliding support capable of rolling on the bottom plate of the fixed slide rail, the cross section of the inner slide rail sliding support is in a shape similar to a Chinese character 'tu', and a rolling bearing is pivoted on both side plates of the bottom of the inner slide rail sliding support, a bearing pin is connected between the rolling bearing and the side plates of the inner slide rail sliding support, and the rolling bearing is supported on the bottom plate of the fixed slide rail and capable of rolling back and forth thereon.

In a more specific embodiment of the present invention, the front and rear end portions of the inner slide rail in the length direction are respectively provided with a gap eliminating assembly capable of contacting with the inner side wall of the fixed slide rail, and the gap eliminating assembly comprises a gap eliminating support frame, a pair of oblique friction plates and a pair of vertical friction plates; the anti-backlash support frame is provided with an anti-backlash support frame top panel, the anti-backlash support frame top panel is attached to the surface of one side of the inner slide rail facing downwards, the anti-backlash support frame top panel is fixed with the inner slide rail through a fastener so as to connect the anti-backlash support frame with the inner slide rail, the positions of the left side and the right side of the bottom of the anti-backlash support frame are respectively provided with an anti-backlash support frame inclined side plate and an anti-backlash support frame vertical side plate, a fixed slide rail inclined plate is arranged between a fixed slide rail side plate of the fixed slide rail and a fixed slide rail bending part, and the fixed slide rail inclined plate and the anti-backlash support frame inclined side plate are arranged correspondingly; the pair of oblique friction plates are respectively installed on oblique side plates of the gap eliminating support frames on two sides of the gap eliminating support frame through fasteners, and are respectively attached to and contacted with inner side walls of the oblique plates of the fixed slide rail.

In yet another specific embodiment of the present invention, the driving motor is a brushless dc motor.

The utility model discloses owing to adopted above-mentioned structure, compare with prior art, the beneficial effect who has: firstly, driving motors are respectively arranged on a single group of fixed sliding rails, the driving mode that the original two groups of sliding rails are driven by the same motor is abandoned, the inner sliding rail in the fixed sliding rails drives a gear box to move through the driving motors to realize the self front-and-back movement, the internal structure is simple and compact, the driving motors on the two sides independently exist, the running safety of the sliding rails is improved, the running noise is reduced, the comfort is improved, the two driving motors can realize the output of higher power and torque, the device is suitable for various severe working conditions, the strength is high, and the application range is wide; meanwhile, a crankshaft connecting frame and other holding frames do not need to be arranged in the two groups of sliding rails for connection when the two groups of sliding rails are driven by the same motor, so that the space can be effectively saved, parts at the bottom of the seat are reduced, the installation is simple and convenient, and the installation efficiency is effectively improved; finally, the dustproof strip assembly is arranged on the upper portion of the fixed slide rail, and the upper portions of the two main dustproof strips are of a parallel surface structure, so that foreign matters and dust are prevented from entering the fixed slide rail, the integral smoothness and attractiveness of the bottom plate of the automobile body can be guaranteed, and subsequent layout installation of other related parts is facilitated.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the embodiment shown in fig. 1.

Fig. 3 is a plan view of the internal structure of the embodiment shown in fig. 1.

In the figure: 1. the sliding rail fixing device comprises a fixed sliding rail, 11 parts of a fixed sliding rail inner cavity, 12 parts of a fixed sliding rail open slot, 13 parts of a fixed sliding rail bottom panel, 131 parts of a locking bolt, 14 parts of a fixed sliding rail side panel, 15 parts of a fixed sliding rail bent part and 16 parts of a fixed sliding rail inclined plate; 2. the anti-backlash device comprises an inner slide rail, 21. An inner slide rail slide support frame, 211. A rolling bearing, 212. A bearing pin, 22. An anti-backlash assembly, 221. An anti-backlash support frame, 2211. An anti-backlash support frame top panel, 2212. An anti-backlash support frame inclined side plate, 2213. An anti-backlash support frame vertical side plate, 222. An inclined friction plate, 223. A vertical friction plate, 23. An inner slide rail positioning groove and 24. An inner slide rail bending part; 3. the screw rod, 31, a front screw rod support, 32, a rear screw rod support and 33, a screw rod guide sleeve; 4. the transmission shaft positioning device comprises a sliding frame plate, 41 transmission shaft cover plates, 411 transmission shaft positioning protective sleeves and 42 sliding frame plate connecting nuts; 5. a drive motor 51. A transmission shaft; 6. the gearbox comprises a gearbox, 61, a gearbox fixing support, 611, a bottom panel of the gearbox fixing support, 612, a side panel of the gearbox fixing support, 613, a connecting protrusion of the gearbox fixing support, 614 and a locking bolt abdicating groove; 7. the dustproof strip assembly comprises a dustproof strip assembly 71, a main body dustproof strip 711, a main body dustproof strip transverse plate 712, a main body dustproof strip vertical plate 72, a dustproof strip reinforcing frame 721, a dustproof strip reinforcing frame supporting seat 73 and a dustproof strip support.

Detailed Description

In order to clearly understand the technical essence and advantages of the present invention, the following embodiments are described in detail, but the description of the embodiments is not intended to limit the technical solution of the present invention, and any equivalent changes made according to the present invention, which are only formal and not essential, should be considered as the technical solution of the present invention.

In the following description, any concept relating to the directions or orientations of up, down, left, right, front and rear is based on the position shown in the corresponding fig. 1, and thus should not be construed as particularly limiting the technical solution provided by the present invention.

Please refer to fig. 1, and with reference to fig. 2 and fig. 3, a dual-motor driven slide rail device of an automobile seat is shown, which includes a pair of fixed slide rails 1, an inner slide rail 2 is slidably connected to each of the fixed slide rails 1, a fixed slide rail inner cavity 11 is formed inside each of the fixed slide rails 1, a fixed slide rail open slot 12 with an upward opening is formed at the upper portion of each of the fixed slide rails 1, and the inner slide rail 2 is disposed at the top of each of the fixed slide rails 1 and corresponds to the position of the fixed slide rail open slot 12; a screw rod 3 extending along the length direction is fixedly mounted in the fixed slide rail inner cavity 11, a vertically-arranged slide frame plate 4 is fixedly connected to the inner slide rail 2, a driving motor 5 is fixedly mounted in the middle of the slide frame plate 4, the driving motor 5 is connected with a transmission shaft 51 extending downwards, a gear box 6 achieving transmission connection with the screw rod 3 and being transversely arranged is further arranged on the screw rod in a penetrating manner, the gear box 6 is fixedly connected with the inner slide rail 2, the transmission shaft 51 of the driving motor 5 extends downwards and is arranged and penetrates through the inner slide rail 2 to stretch into the fixed slide rail inner cavity 11 to achieve transmission connection with a transmission assembly inside the gear box 6; the dust-proof strip assembly 7 is further arranged on the upper portion of the fixed slide rail 1 and at a position corresponding to the fixed slide rail open slot 12, the dust-proof strip assembly 7 comprises a pair of main body dust-proof strips 71, a pair of dust-proof strip reinforcing frames 72 and a plurality of dust-proof strip supports 73, the pair of dust-proof strip reinforcing frames 72 are respectively arranged at two sides of the top end of the fixed slide rail 1, the two main body dust-proof strips 71 are respectively arranged on the corresponding dust-proof strip reinforcing frames 72 and can shield the corresponding fixed slide rail open slot 12, the plurality of dust-proof strip supports 73 are connected to the side plates of the fixed slide rail 1, and the plurality of dust-proof strip supports 73 are connected with the corresponding main body dust-proof strips 71, so that the main body dust-proof strips 71 and the fixed slide rail 1 can be positioned and installed.

In a specific embodiment of the present invention, the fixed slide rail 1 is a square tube structure and the opening of the fixed slide rail 1 is upward, the fixed slide rail 1 has a fixed slide rail bottom plate 13 extending along the length direction, the fixed slide rail 1 further has fixed slide rail side plates 14 formed on both sides of the fixed slide rail bottom plate 13, and a fixed slide rail bending portion 15 is formed on each of the top edge portions of the two fixed slide rail side plates 14, the cross section of the fixed slide rail bending portion 15 is a reversed U-shaped structure with the opening facing downward, and the left and right side edge portions of the length direction of the inner slide rail 2 also respectively form an inner slide rail bending portion 24, the cross section of the inner slide rail bending portion 24 is a U-shaped structure with the opening facing upward, the inner slide rail bending portions 24 on both sides of the inner slide rail 2 are respectively matched with the corresponding fixed slide rail bending portions 15, and the sliding fit of the inner slide rail 2 and the fixed slide rail 1 is achieved.

During specific installation, two independent fixed slide rails 1 are symmetrically arranged on two sides of the bottom of the vehicle seat, and connection is not needed through long motor shaft connecting frames and other holding frames, so that the vehicle seat can be directly installed only by ensuring that the relative positions of the inner slide rails 2 arranged on the two fixed slide rails 1 are kept unchanged during actual installation, the complexity of an installation process is well reduced, and the installation efficiency is improved; meanwhile, the double-motor driving mode can effectively realize larger total output power and torque, is suitable for more severe and complex working environments, and has wide application range.

Please refer to fig. 2 and fig. 3, the dust-proof strip reinforcing frame 72 of the dust-proof strip assembly 7 is an L-shaped plate structure and is respectively disposed on the corresponding fixed rail bending portion 15, and a dust-proof strip reinforcing frame supporting seat 721 is further disposed below the two end portions of the two dust-proof strip reinforcing frames 72 in the length direction, the dust-proof strip reinforcing frame supporting seat 721 is positioned and mounted on the fixed rail bottom surface 13 of the fixed rail 1, the two main body dust-proof strips 71 are respectively disposed on the two dust-proof strip reinforcing frames 72, the two main body dust-proof strips 71 respectively include a main body dust-proof strip transverse plate 711 disposed horizontally and a main body dust-proof strip vertical plate 712 disposed at the bottom of the main body dust-proof strip transverse plate 711, the main body dust-proof strip transverse plates of the two main body dust-proof strips 71 are disposed on the upper portion of the fixed rail open slot 12 and together shield the fixed rail open slot 12, and a plurality of the dust-proof strip brackets 73 are mounted on the fixed rail 1 at intervals and along the vertical direction, and the top end portions of the dust-proof strip brackets 73 are respectively connected to the fixed rail 1, thereby realizing the main body dust-proof strips 71.

Further, a front screw rod support 31 and a rear screw rod support 32 are respectively arranged at the front side and the rear side of the screw rod 3 in the length direction, the front end and the rear end of the screw rod 3 in the length direction are respectively arranged in the front screw rod support 31 and the rear screw rod support 32 in a penetrating manner, and the front screw rod support 31 and the rear screw rod support 32 are both fixedly arranged on the fixed slide rail bottom panel 13 through a fastener; a screw rod guide sleeve 33 is also mounted on the rod body of the screw rod 3.

Further, a transmission shaft cover plate 41 is fixedly installed on one side surface of the slide frame plate 4 and at a position corresponding to the lower part of the driving motor 5, a transmission shaft positioning protection sleeve 411 is convexly installed and formed in the middle of the transmission shaft cover plate 41, and the transmission shaft 51 of the driving motor 5 is inserted into the transmission shaft positioning protection sleeve 411; and a sliding frame plate connecting nut 42 is installed on the top of the end part of the two ends of the sliding frame plate 4 in the length direction, and the sliding frame plate 4 is fixedly connected with the automobile seat through the two sliding frame plate connecting nuts 42.

In this embodiment, a gear box fixing bracket 61 is further installed on the gear box 6, the gear box fixing bracket 61 is fixedly installed with the inner slide rail 2 so as to realize the connection between the gear box 6 and the inner slide rail 2, a distance exists between the gear box fixing bracket 61 and the fixed slide rail bottom plate 13, a plurality of locking bolts 131 are further arranged on the fixed slide rail bottom plate 13 of the fixed slide rail 1 in a penetrating manner, a locking bolt abdicating groove 614 is further formed at the bottom part of the gear box fixing bracket 61, and a nut of the locking bolt 131 installed on the fixed slide rail bottom plate 13 can pass through the locking bolt abdicating groove 614 in the moving process of the gear box fixing bracket 61, so that the gear box fixing bracket 61 can reciprocate at positions above the plurality of locking bolts 131; the gear box fixing bracket 61 includes a gear box fixing bracket bottom panel 611 and a pair of gear box fixing bracket side panels 612 formed on the front and rear sides of the gear box fixing bracket bottom panel 611, two gear box fixing bracket connecting protrusions 613 are formed on the top of the pair of gear box fixing bracket side panels 612, inner rail positioning grooves 23 are formed on the inner rail 2 at positions corresponding to the gear box fixing bracket connecting protrusions 613, and the plurality of gear box fixing bracket connecting protrusions 613 are fitted into the corresponding inner rail positioning grooves 23, thereby realizing the positioning connection between the gear box fixing bracket 61 and the inner rail 2 body.

It should be noted that the gear box 6 is horizontally arranged, the upper end of the transmission shaft 51 is vertically arranged to be in transmission connection with the output end of the driving motor 5, the lower end of the transmission shaft 51 is inserted into a circular hole above the gear box 6, meanwhile, the screw rod 3 is connected with a gear transmission component inside the gear box 6, and the driving motor 5 drives the gear box fixing support 61 and the inner slide rail 2 to move back and forth on the screw rod 3 through the driving transmission shaft 41 and the gear box 6 in transmission connection therewith. And because the gear box 6 sets up transversely, there is free space inside the inside fixed slide rail inner chamber 1 of fixed slide rail 1, and there is the distance between gear box fixed bolster 61 and the fixed slide rail bottom panel 13, can set up the locking bolt 131 of being connected with the vehicle body bottom plate realization between the fixed slide rail bottom panel 13 during the installation, and need not to set up the link fixed with the vehicle body bottom plate on fixed slide rail 1, thereby the mounting structure of fixed slide rail 1 and vehicle body bottom plate has been simplified, also can save manufacturing cost when convenient the assembly.

With reference to fig. 1 and fig. 2 and 3, an inner rail sliding support frame 21 capable of rolling on the fixed rail bottom plate 13 is respectively disposed at the front end and the rear end of the inner rail 2 in the length direction, the cross section of the inner rail sliding support frame 21 is in a structure like a "convex" shape, a rolling bearing 211 is pivoted on each of the two side plates at the bottom of the inner rail sliding support frame 21, a bearing pin 212 is connected between the rolling bearing 211 and the side plate of the inner rail sliding frame 21, and the rolling bearing 211 is supported on the fixed rail bottom plate 13 of the fixed rail 1 and can roll thereon in a reciprocating manner.

In this embodiment, the front and rear ends of the inner slide rail 2 in the length direction are respectively provided with an anti-backlash assembly 22 capable of contacting with the inner side wall of the fixed slide rail 1, the anti-backlash assembly 22 comprises an anti-backlash support frame 221, a pair of oblique friction plates 222 and a pair of vertical friction plates 223, the anti-backlash support frame 221 is made of a spring piece; the anti-backlash support frame 221 is provided with an anti-backlash support frame top panel 2211, the anti-backlash support frame top panel 2211 is attached to one downward side surface of the inner slide rail 2, the anti-backlash support frame top panel 2211 is fixed with the inner slide rail 2 through a fastener, so that the anti-backlash support frame 221 is connected with the inner slide rail 2, the left side and the right side of the bottom of the anti-backlash support frame 221 are respectively provided with an anti-backlash support frame inclined side plate 2212 and an anti-backlash support frame vertical side plate 2213, a fixed slide rail inclined plate 16 is arranged between the fixed slide rail side plate 14 of the fixed slide rail 1 and the fixed slide rail bending part 15, and the fixed slide rail inclined plate 16 and the anti-backlash support frame inclined side plate 2212 are arranged correspondingly; a pair of the aforementioned oblique friction plates 222 are respectively mounted on the oblique side plates 2212 of the anti-backlash support frame 221 on both sides through fasteners, and the oblique friction plates 222 are respectively attached to and contacted with the inner side wall of the fixed slide rail oblique plate 16, similarly, a pair of the aforementioned vertical friction plates 223 are respectively mounted on the vertical side plates 2213 of the anti-backlash support frame 221 on both sides through fasteners, and the vertical friction plates 223 are respectively attached to and contacted with the inner side wall of the fixed slide rail side plate 14 body; the oblique friction plate 222 and the vertical friction plate 223 of the anti-backlash assembly 22 are always attached to the inner side wall of the fixed slide rail 1 under the elastic action of the elastic anti-backlash support frame 221, so that the gap between the fixed slide rail 1 and the inner slide rail 2 is effectively eliminated, and the sliding smoothness of the inner slide rail 2 is ensured.

Preferably, the aforementioned driving motor 5 is a brushless dc motor; the brushless direct current motor has the advantages of large starting torque, strong overload capacity, convenient speed regulation, stable operation, low noise, reliable work and the like, can ensure the stability and reliability of the inner slide rail 2 during operation when in use, and can not generate pause and contusion during starting, thereby further improving the comfort.

Referring to fig. 1 to 3, the applicant briefly describes the working principle of the technical solution provided by the present invention: firstly, during assembly, as shown in fig. 1, two corresponding fixed slide rails 1 are fixedly mounted on an underbody through locking bolts 131, then a gear box 6 and an inner slide rail 2 with an anti-backlash assembly 22 are arranged in the fixed slide rails 1, then a screw rod 3 and a driving motor 5 are arranged, transmission connection of a transmission shaft 51 and the gear box 6 is realized, then a dustproof strip assembly 7 is mounted, and finally an automobile seat is placed on a slide frame plate 4 and is fixedly mounted through a slide frame plate connecting nut 42. When a driver and an occupant carry out front-and-back movement operation on the seat according to actual riding experience requirements, the driving motor 5 is controlled to work by operating the external controller, the transmission shafts 51 of the driving motors 32 on the two-side fixed slide rails 1 drive transmission gear assemblies inside the gear box 6 to work, so that the gear box 6 is driven to move on the screw rod 3 in a front-and-back manner, the gear box fixing support 61 of the gear box 6 drives the inner slide rail 2 to move in a front-and-back manner, and finally the vehicle seat connected with the inner slide rail 2 is driven to move in a front-and-back manner, so that the position of the vehicle seat is adjusted.

To sum up, the technical solution provided by the present invention overcomes the shortcomings in the prior art, successfully completes the invention task, and truly realizes the technical effects of the applicant in the technical effect column.

Claims

1. The utility model provides a bi-motor drive's of car seat slide rail device which characterized in that: the sliding rail fixing device comprises a pair of fixed sliding rails (1), wherein the fixed sliding rails (1) are all connected with an inner sliding rail (2) in a sliding manner, a fixed sliding rail inner cavity (11) is formed inside the fixed sliding rail (1), a fixed sliding rail open slot (12) with an upward opening is formed in the upper part of the fixed sliding rail (1), and the inner sliding rail (2) is arranged at the top of the fixed sliding rail (1) and corresponds to the position of the fixed sliding rail open slot (12); a screw rod (3) extending along the length direction of the fixed slide rail is fixedly installed in the fixed slide rail inner cavity (11), a vertically-arranged slide frame plate (4) is fixedly connected to the inner slide rail (2), a driving motor (5) is fixedly installed in the middle of the slide frame plate (4), the driving motor (5) is connected with a transmission shaft (51) extending downwards, a gear box (6) which is in transmission connection with the screw rod (3) and is transversely arranged is further arranged in a penetrating manner, the gear box (6) is fixedly connected with the inner slide rail (2), and the transmission shaft (51) of the driving motor (5) extends downwards and penetrates through the inner slide rail (2) to extend into the fixed slide rail inner cavity (11) to be in transmission connection with a transmission assembly in the gear box (6); the upper portion of fixed slide rail (1) still is provided with a dust strip subassembly (7) in the position department corresponding to fixed slide rail open slot (12), this dust strip subassembly (7) are including a pair of main part dust strip (71), a pair of dust strip strengthening frame (72) and a plurality of dust strip support (73), a pair of dust strip strengthening frame (72) is settled respectively in the top both sides position department of fixed slide rail (1), two main part dust strips (71) are then settled on the dust strip strengthening frame (72) that correspond respectively and are realized corresponding sheltering from of fixed slide rail open slot (12), a plurality of dust strip supports (73) are then connected on the side board of fixed slide rail (1), and a plurality of dust strip supports (73) are connected with the main part dust strip (71) that correspond respectively, thereby realize the location installation of main part dust strip (71) and fixed slide rail (1).

2. The dual motor driven slide rail apparatus of an automobile seat according to claim 1, wherein: the fixed slide rail (1) is of a square pipe structure, the opening of the fixed slide rail (1) faces upwards, the fixed slide rail (1) is provided with a fixed slide rail bottom panel (13) extending along the length direction of the fixed slide rail bottom panel, the fixed slide rail (1) is also provided with fixed slide rail side panels (14) formed on two sides of the fixed slide rail bottom panel (13), the top edge parts of the two fixed slide rail side panels (14) are respectively provided with a fixed slide rail bending part (15), the cross section of the fixed slide rail bending part (15) is of an inverted U-shaped structure with the opening facing downwards, the edge parts of the left side and the right side of the length direction of the inner slide rail (2) are also respectively provided with an inner slide rail bending part (24), the cross section of the inner slide rail bending part (24) is of an upward U-shaped structure with the opening facing upwards, and the inner slide rail bending parts (24) on two sides of the inner slide rail (2) are respectively matched with the corresponding fixed slide rail bending parts (15) respectively, and the sliding matching of the inner slide rail (2) and the fixed slide rail (1) is realized.

3. The dual motor driven slide rail apparatus of an automobile seat according to claim 2, wherein: the dustproof strip reinforcing frames (72) of the dustproof strip assembly (7) are of an L-shaped plate structure and are respectively arranged on the corresponding fixed slide rail bending parts (15) in a matched mode, dustproof strip reinforcing frame supporting seats (721) are further arranged at positions below the end parts of the two ends of the two dustproof strip reinforcing frames (72) in the length direction, the dustproof strip reinforcing frame supporting seats (721) are arranged on the fixed slide rail bottom plates (13) of the fixed slide rail (1) in a positioned mode, the two main body dustproof strips (71) are respectively arranged on the two dustproof strip reinforcing frames (72), the two main body dustproof strips (71) respectively comprise a main body dustproof strip transverse plate (711) which is horizontally arranged and a main body dustproof strip vertical plate (712) which is formed at the bottom of the main body dustproof strip transverse plate (711) which is arranged at the upper portion of the fixed slide rail (12) and jointly fix the fixed slide rail (12), a plurality of dustproof strip supporting frames (73) are arranged on the left side and right side face plates (14) of the fixed slide rail (1) at intervals, and are connected with the main body dustproof strip supporting seats (71) along the left and right side face plate (14) of the fixed slide rail (1), and the dustproof strip supporting frames (71) at intervals, so that the dustproof strips are arranged respectively.

4. The dual motor driven slide rail apparatus of an automobile seat according to claim 2, wherein: a front screw rod support (31) and a rear screw rod support (32) are respectively arranged at the front side and the rear side of the screw rod (3) in the length direction, the front end and the rear end of the screw rod (3) in the length direction are respectively arranged in the front screw rod support (31) and the rear screw rod support (32) in a penetrating manner, and the front screw rod support (31) and the rear screw rod support (32) are both fixedly arranged on a fixed slide rail bottom panel (13) through a fastener; and a screw rod guide sleeve (33) is also arranged on the rod body of the screw rod (3).

5. The dual motor driven slide rail apparatus of an automobile seat according to claim 1, wherein: a transmission shaft cover plate (41) is fixedly arranged on one side surface of the sliding frame plate (4) and at a position corresponding to the lower part of the driving motor (5), a transmission shaft positioning protective sleeve (411) is convexly arranged in the middle of the transmission shaft cover plate (41), and a transmission shaft (51) of the driving motor (5) penetrates through the transmission shaft positioning protective sleeve (411); and the tops of the end parts of the two ends of the sliding frame plate (4) in the length direction are respectively provided with a sliding frame plate connecting nut (42), and the sliding frame plate (4) is fixedly connected with the automobile seat through the two sliding frame plate connecting nuts (42).

6. The dual motor driven slide rail apparatus of an automobile seat according to claim 1, wherein: the gearbox fixing support (61) is further mounted on the gearbox (6), the gearbox fixing support (61) and the inner slide rail (2) are fixedly mounted together, so that the connection between the gearbox (6) and the inner slide rail (2) is achieved, a distance exists between the gearbox fixing support (61) and the fixed slide rail bottom panel (13), a plurality of locking bolts (131) penetrate through the fixed slide rail bottom panel (13) of the fixed slide rail (1), a locking bolt abdicating groove (614) is further formed in the bottom of the gearbox fixing support (61), and nuts of the locking bolts (131) mounted on the fixed slide rail bottom panel (13) can penetrate through the locking bolt abdicating groove (614) in the moving process of the gearbox fixing support (61), so that the gearbox fixing support (61) can reciprocate at positions above the locking bolts (131); the gear box fixing support (61) is provided with a gear box fixing support bottom panel (611) and a pair of gear box fixing support side panels (612) which are formed on the front side and the rear side of the gear box fixing support bottom panel (611), two gear box fixing support connecting protrusions (613) are formed on the top parts of the gear box fixing support side panels (612), inner slide rail positioning grooves (23) are formed in the positions, corresponding to the gear box fixing support connecting protrusions (613), on the inner slide rail (2), and the gear box fixing support connecting protrusions (613) are installed in the corresponding inner slide rail positioning grooves (23) in a matched mode, so that the gear box fixing support (61) is connected with the inner slide rail (2) in a positioning mode.

7. The dual motor driven slide rail apparatus of an automobile seat according to claim 1, wherein: the front end part and the rear end part of the length direction of the inner slide rail (2) are respectively provided with an inner slide rail sliding support frame (21) capable of rolling on a fixed slide rail bottom panel (13), the cross section of the inner slide rail sliding support frame (21) is in a convex-shaped structure, two side panels at the bottom of the inner slide rail sliding support frame (21) are respectively pivoted with a rolling bearing (211), a bearing pin (212) is connected between the rolling bearing (211) and the side panels of the inner slide rail sliding support frame (21), and the rolling bearing (211) is supported on the fixed slide rail bottom panel (13) of the fixed slide rail (1) and can roll on the fixed slide rail bottom panel in a reciprocating manner.

8. The dual motor driven slide rail apparatus of an automobile seat according to claim 2, wherein: the front end part and the rear end part of the inner slide rail (2) in the length direction are respectively provided with an anti-backlash assembly (22) which can be attached to and contacted with the inner side wall of the fixed slide rail (1), and the anti-backlash assembly (22) is provided with an anti-backlash support frame (221), a pair of inclined friction plates (222) and a pair of vertical friction plates (223); the anti-backlash support frame (221) is provided with an anti-backlash support frame top panel (2211), the anti-backlash support frame top panel (2211) is attached to the surface of one downward side of the inner slide rail (2), the anti-backlash support frame top panel (2211) is fixed with the inner slide rail (2) through a fastener, so that the anti-backlash support frame (221) is connected with the inner slide rail (2), the positions of the left side and the right side of the bottom of the anti-backlash support frame (221) are respectively provided with an anti-backlash support frame inclined side plate (2212) and an anti-backlash support frame vertical side plate (2213), a fixed slide rail inclined plate (16) is further formed between a fixed slide rail side plate (14) and a fixed slide rail bending part (15) of the fixed slide rail (1), and the fixed slide rail inclined plate (16) and the anti-backlash support frame side plate (2212) are arranged in an inclined mode; the pair of oblique friction plates (222) are respectively mounted on oblique side plates (2212) of the gap eliminating support frames on two sides of the gap eliminating support frame (221) through fasteners, the pair of oblique friction plates (222) are respectively attached to and contacted with inner side walls of the oblique plates (16) of the fixed slide rail, similarly, the pair of vertical friction plates (223) are respectively mounted on vertical side plates (2213) of the gap eliminating support frames on two sides of the gap eliminating support frame (221) through fasteners, and the pair of vertical friction plates (223) are respectively attached to and contacted with inner side walls of the body of the side panel (14) of the fixed slide rail.

9. The dual motor driven slide rail apparatus of an automobile seat according to claim 1, wherein: the driving motor (5) is a brushless direct current motor.