Automobile seat electric adjusting sliding rail with intelligent speed changing function and automobile seat

Abstract

The invention discloses an automobile seat electric adjusting sliding rail with an intelligent speed changing function and an automobile seat, and belongs to the technical field of automobile parts. The lower sliding rail is fixed with a compartment bottom plate of the automobile, and a lower sliding rail cavity with an upper opening is formed in the length direction of the lower sliding rail; the upper sliding rail and the lower sliding rail form a sliding pair; the chair seat and seat basin connecting plate is fixedly connected with the upper sliding rail; the screw rod is arranged in the lower sliding rail cavity; the intelligent speed change mechanism is characterized in that the intelligent speed change mechanism comprises a primary speed reduction device, a speed increasing device and a final speed reduction device, the primary speed reduction device is fixed to the front side of the middle of the seat basin connecting plate and is in transmission connection with the speed increasing device, and the speed increasing device is fixed to the rear side of the middle of the seat basin connecting plate at the position corresponding to the primary speed reduction device; and the final-stage speed reduction device is in transmission fit with the screw rod and is connected with the movable sliding rail. The method has the advantages that smoothness and stability in the adjusting process are embodied, and abrupt feeling and discomfort of a passenger are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and in particular relates to an electric adjustment slide rail for an automobile seat with an intelligent speed change function, and also relates to the automobile seat thereof. Background Art

[0002] The intelligent speed change mentioned above is relative to or different from the traditional single speed adjustment design mode. The so-called single speed adjustment mode is such as the motor controlled by the electronic control unit (ECU) of the vehicle drives the reduction box, and the reduction box drives the structure of the slide rail, and the movable slide rail (also called "upper slide rail" or "inner slide rail") that forms a sliding pair with the static slide rail (also called "lower slide rail" or "outer slide rail") moves forward or reverse on the screw rod set in the static slide rail cavity. For example, the forward movement is driven by the movable slide rail to drive the seat basin connecting plate fixed to it, together with the seat basin and the seat fixed to the seat basin connecting plate, and vice versa. The intelligent speed change is essentially different from the aforementioned single speed adjustment design for the slide rail. It has both various requirements for adjustment based on the passengers, and a relatively optimized moving speed of the seat driven by the movable slide rail calculated by an algorithm based on factors such as the current position of the seat and the running state of the vehicle.

[0003] In summary, the aforementioned intelligent transmission has the following advantages that are not limited and are increasingly becoming a consensus among people: improving riding comfort, because it can achieve smooth deceleration and acceleration during the adjustment process, avoiding the abruptness and discomfort of the slide rail during adjustment in the aforementioned traditional single adjustment mode, and satisfying the passenger's riding experience; precise control, for example, through precise and reasonable deceleration, acceleration and deceleration control, the movable slide rail can remain stable during sliding or moving, reducing the vibration and noise caused by rapid movement, and ensuring the comfort and stability of the passengers; can adapt to different needs, because the seat can be quickly adjusted according to different usage scenarios, such as quickly adjusting the position in an emergency, or providing a more comfortable riding experience during long-term driving; is conducive to protecting the motor, for example, avoiding the motor from bearing a large load and causing the electric shaft to loosen or even damage the motor shaft to ensure the long-term service life of the motor; good spatial adaptability, for example, it can complete a large displacement in a relatively small space; reflects intelligent applications, because modern cars are increasingly focusing on intelligence and automation, so the overall comfort and user experience of the vehicle can be improved.

[0004] There is no shortage of technical information related to the seat slide in the public Chinese and foreign patent documents, such as: CN215204537U (a high-strength independent electric slide), CN116022040B (an electric slide drive mechanism for a vehicle seat), CN113320450A (an electric slide for a car seat), CN118082637A (a new type of horizontal adjustment transmission vehicle seat slide assembly), U.S. Patent US2009 / 0114793A1 (an electric slide for a car seat) and U.S. Patent US5150872A (an electric slide for a car seat), etc.

[0005] The patents listed above are not limited to the above-mentioned single speed adjustment design mode, that is, they are all driven by the motor to drive the reduction box or worm gear box to move along the screw, so that the reduction box or worm gear box drives the upper slide rail together with the seat basin fixedly connected to the seat basin connecting plate to move accordingly, and finally the seat fixed to the seat basin moves accordingly. Therefore, it is necessary to make a reasonable design based on the concept of putting theory into practice, and the technical solution to be introduced below is produced in this context. Summary of the invention

[0006] The task of the present invention is to provide an electric adjustment slide rail for automobile seats with intelligent speed change function, which helps to reflect the smoothness and stability in the adjustment process so as to avoid the abruptness and discomfort to the passengers, is conducive to the use of deceleration and acceleration so as to significantly reduce the vibration and noise caused by rapid movement during the sliding process of the movable slide rail and ensure the comfort and stability of the passengers, is convenient to meet different needs so that the passengers can make rapid adjustments according to different scenes and obtain a more comfortable riding experience, is beneficial to prevent the motor from bearing a large load and causing the motor shaft to loosen or even damage the motor so as to ensure the long-term service life of the motor, helps to reflect good adaptability to the space so as to complete a large displacement in a relatively small space, and is good at exerting ideal intelligent and automated effects so as to improve the vehicle's sense of technology and user experience as a whole.

[0007] Another task of the present invention is to provide a car seat that can fully realize the technical effect of the electric adjustment slide rail of the car seat with intelligent speed change function.

[0008] The task of the present invention is accomplished in this way. An electric adjustment slide rail for a car seat with an intelligent speed change function comprises a lower rail, which is fixed to the bottom plate of the car compartment in the use state and forms a lower rail cavity with an upper open opening in the length direction of the lower rail; an upper rail, which forms a sliding pair with the lower rail; a seat basin connecting plate, which is fixedly connected to the upper rail; a screw rod, which is arranged in the lower rail cavity at a position corresponding to the lower position in the length direction of the upper rail; an intelligent speed change mechanism, characterized in that: the intelligent speed change mechanism comprises a primary reduction device, an increase device and a final reduction device, the primary reduction device is fixed to the middle front side of the length direction of the seat basin connecting plate, and is transmission-connected to the increase device, and the increase device is fixed to the middle rear side of the length direction of the seat basin connecting plate at a position corresponding to the primary reduction device, and is transmission-connected to the final reduction device, and the final reduction device is transmission-coordinated with the screw rod and connected to the movable slide rail in a left-right movable manner.

[0009] In a specific embodiment of the present invention, a primary reduction device fixed mounting plate is fixed in the middle of the length direction of the seat basin connecting plate, and the lower part of the primary reduction device fixed mounting plate is folded backward in a horizontal state to a speed increasing device fixed mounting plate, the primary reduction device is fixed to the front side of the primary reduction device fixed mounting plate, and the speed increasing device is fixed to the speed increasing device fixed mounting plate, and the primary reduction device passes through the primary reduction device fixed mounting plate and is transmission connected to the speed increasing device, and the speed increasing device passes through the speed increasing device fixed mounting plate and the upper slide rail downward in turn and is transmission connected to the final reduction device that cooperates with the screw transmission and moves left and right.

[0010] In another specific embodiment of the present invention, the primary reduction device includes a motor, a reduction box and a spline shaft. The motor is arranged in a horizontal state and is transmission-connected to the reduction box power input shaft of the reduction box at a position corresponding to the right side of the reduction box, and the reduction box together with the motor is fixed to the front side of the fixed mounting plate of the primary reduction device, and the rear end of the spline shaft is transmission-matched with the spline hole of the reduction box final power output shaft of the reduction box, and the rear end of the spline shaft extends to the rear side of the reduction box after passing through the spline hole of the final power output shaft of the reduction box and then extends to the The rear side of the primary reduction device fixed mounting plate is transmission connected to the speed increase device, and the front end of the spline shaft is transmission connected to the speed increase device on the adjacent speed increase device fixed mounting plate which is also arranged on the rear side of the corresponding seat basin connecting plate; a worm gear box support embedding cavity is provided in the middle part in the length direction of the upper slide rail, and a worm gear shaft clearance hole is provided at a position corresponding to one side of the middle part of the worm gear box support embedding cavity. After passing through the speed increase device fixed mounting plate, the speed increase device is transmission connected to the final speed reduction device so that the final speed reduction device moves left and right along the screw.

[0011] In another specific embodiment of the present invention, a spline shaft clearance hole is provided on the fixed mounting plate of the primary reduction device, and a worm gear sleeve matching hole is provided on the fixed mounting plate of the speed increasing device; the speed increasing device comprises a speed increasing worm gear box, a speed increasing worm gear box cover, a speed increasing worm wheel, a speed increasing worm and a worm gear sleeve, the lower part of the speed increasing worm gear box is constituted with a speed increasing worm gear box seat, the speed increasing worm gear box seat is fixed to the upper side of the fixed mounting plate of the speed increasing device by the speed increasing worm gear box seat fixing screws, the worm gear sleeve is fitted with the worm gear sleeve matching hole, and a speed increasing worm gear shaft through hole is constituted in the middle part of the worm gear sleeve, which passes through from the upper part to the lower part, the speed increasing worm gear and the speed increasing worm are arranged in the speed increasing worm gear box and mesh with each other, wherein the speed increasing worm gear shaft of the speed increasing worm wheel The lower end extends to the bottom of the speed-increasing worm gear case, and after passing through the speed-increasing worm gear shaft through hole, it cooperates with the final stage reduction device in transmission, and the upper end extends into the case cover shaft hole opened on the speed-increasing worm gear case cover, and the speed-increasing worm shaft of the speed-increasing worm corresponds to the spline hole of the final stage power output shaft of the reduction box, and the rear end of the spline shaft extends into the spline hole of the speed-increasing worm shaft after passing through the spline shaft yield hole and cooperates with the speed-increasing worm shaft in transmission, and the speed-increasing worm gear case cover is fixed to the worm gear case fixing screw hole opened on the speed-increasing worm gear case by the speed-increasing worm gear case cover fixing screws; a pair of reduction box fixing studs are arranged on the front side of the primary reduction device fixed mounting plate, and the reduction box is fixed to the pair of reduction box fixing studs by a pair of reduction box fixing screws.

[0012] In another specific embodiment of the present invention, the final reduction device includes a final worm gear reduction box support and a final worm gear reduction box, the upper part of the final worm gear reduction box support is embedded with the upper slide rail at a position corresponding to the embedding cavity of the worm gear box support, the final worm gear reduction box is arranged on the final worm gear reduction box support and the final worm gear reduction box support together with the final worm gear reduction box is movably cooperated with the screw, the lower end of the speed-increasing worm wheel shaft is transmitted and cooperated with the final worm wheel shaft hole of the final worm wheel of the final worm gear reduction box after passing through the speed-increasing worm wheel shaft through hole and the worm wheel shaft yield hole, and the final worm wheel is transmitted and cooperated with the final worm wheel reduction box worm wheel in the final worm gear reduction box, and the worm wheel of the final worm gear reduction box is movably cooperated with the screw.

[0013] In another specific embodiment of the present invention, the motor is a brushless DC motor with forward and reverse rotation functions.

[0014] In a more specific embodiment of the present invention, the lower rail cavity of the lower rail is composed of a lower rail bottom plate, a lower rail front folding plate and a lower rail rear folding plate. The lower rail front folding plate is formed by folding upward the front side of the lower rail bottom plate in the length direction, and folding in the direction of the lower rail cavity at the upper part of the length direction of the lower rail front folding plate to form an upper rail front folding edge matching groove. The lower rail rear folding plate is formed by folding upward the rear side of the lower rail bottom plate in the length direction, and folding in the direction of the lower rail cavity at the upper part of the length direction of the lower rail rear folding plate to form an upper rail rear folding edge matching groove. The front and rear folding plates of the lower rail correspond to each other front and back, and the front and rear folding edge matching grooves of the upper rail correspond to each other front and back and have a cross-sectional shape The shape is N-shaped; the front side of the upper slide rail in the length direction is folded upward to form an upper slide rail front folding groove with a U-shaped cross-section and matched with the upper slide rail front folding matching groove; the rear side of the upper slide rail in the length direction is folded upward to form an upper slide rail rear folding groove with a U-shaped cross-section and matched with the upper slide rail rear folding matching groove; a pair of rollers are rotatably arranged at the left and right bottom ends of the upper slide rail through roller shafts, and the pair of rollers and the side of the lower slide rail bottom plate facing upwards form a rolling pair; a front clearance elimination mechanism is arranged on the front groove wall of the upper slide rail groove on the side of the upper slide rail front folding groove facing outward and at the left and right ends of the front groove wall of the upper slide rail groove, A rear gap eliminating mechanism is arranged on the rear groove wall of the upper slide rail groove on the side facing outward and at the left and right ends of the rear groove wall of the upper slide rail groove, the front gap eliminating mechanism eliminates the gap between the front folding edge matching groove of the upper slide rail and the front folding edge matching groove of the upper slide rail and makes the groove walls of each other form a sliding pair, and the rear gap eliminating mechanism eliminates the gap between the rear folding edge matching groove of the upper slide rail and the rear folding edge matching groove of the upper slide rail and makes the groove walls of each other form a sliding pair; an embedded convex block cavity is opened in an interval state in the middle part of the length direction of the upper slide rail, and an embedded convex block is formed in an interval state in the lower part of the length direction of the seat basin connecting plate, the position of the embedded convex block corresponds to the embedded convex block cavity and is embedded in the embedded convex block cavity by the mortise and tenon matching effect. A seat seat basin connecting plate nut seat is fixed to the left and right ends of the upper part of the seat seat basin connecting plate; a pair of upper slide rail guide mechanisms are arranged on the side facing downward in the middle of the upper slide rail, and the pair of movable slide rail guide mechanisms each include a sliding sleeve seat fixing plate and a sliding sleeve seat, the sliding sleeve seat fixing plate is welded to the side of the movable slide rail facing downward, the sliding sleeve seat is fixed to the left side of the sliding sleeve seat fixing plate by a sliding sleeve seat fixing screw, and a sliding sleeve seat screw sliding matching hole is formed on the sliding sleeve seat, and the sliding sleeve seat screw sliding matching hole corresponds to the sliding sleeve seat fixing plate screw sliding matching hole opened on the sliding sleeve seat fixing plate, the sliding sleeve seat screw sliding matching hole and the sliding sleeve seat fixing plate screw sliding matching hole are jointly sleeved on the screw and form a sliding pair with the screw.

[0015] In a further specific embodiment of the present invention, the structure of the rear eliminating backlash mechanism is the same as that of the front eliminating backlash mechanism, and the front eliminating backlash mechanism comprises a roller retainer and a roller, the roller retainer is inserted into the front groove wall of the upper slide rail groove, and the roller is arranged on the roller retainer, and the roller makes the front groove wall of the upper slide rail groove and the groove wall of the upper slide rail front folding edge matching groove form a sliding pair with each other.

[0016] In yet another specific embodiment of the present invention, a screw support seat fixing screw clearance hole is provided on the lower slide rail bottom plate and at positions corresponding to the left end and the right end of the screw respectively. The left end and the right end of the screw are respectively arranged on the screw support seat, and the left end of the screw is threadedly matched with the screw support seat located at the left end, while the right end of the screw extends to the right side of the screw support seat at the right end and is locked by the locking nut at the right end of the screw, and the bottom of the screw support seat is released from the lower slide rail bottom plate at the position corresponding to the screw support seat screw clearance hole by the screw support seat fixing screw. The bottom is screwed upward into the bottom of the screw support seat in the direction of the lower slide rail cavity to fix the screw support seat to the lower slide rail bottom plate in the lower slide rail cavity; pad fixing holes are provided at intervals in the length direction of the lower slide rail bottom plate of the lower slide rail, and a pad is provided at a position corresponding to the pad fixing hole and below the lower slide rail bottom plate. In a state of use, the lower slide rail bottom plate together with the pad is fixed to the vehicle's car floor plate at a position corresponding to the pad fixing hole by the pad fixing screw, and the lower slide rail bottom plate also cooperates with the positioning column holes preset on the vehicle's car floor plate through the positioning columns distributed at intervals.

[0017] Another task of the present invention is accomplished by providing a vehicle seat having an electrically adjustable slide rail of the vehicle seat with the intelligent speed change function.

[0018] One of the technical effects of the technical solution provided by the present invention is that since the intelligent speed change mechanism is composed of a primary reduction device, an increase device and a final reduction device which are connected in rotation in sequence, it is helpful to reflect the smoothness and stability in the adjustment process and avoid giving passengers a sense of abruptness and discomfort; secondly, since the initial deceleration, the increase in speed in the intermediate process and the final re-deceleration are used together, the upper slide rail can significantly reduce the vibration and noise caused by rapid movement during the sliding process and ensure the comfort and stability of the passengers; thirdly, it is convenient to meet the passengers' needs for rapid adjustment according to different scenarios and obtain a more comfortable riding experience; fourthly, since the intelligent speed change mechanism has a gradual change process of deceleration, increase in speed and deceleration, it is beneficial to prevent the motor from bearing a large load and causing the motor shaft to loosen or even damage the motor, thereby ensuring the long-term service life of the motor; fifthly, since the intelligent speed change mechanism can reflect the ideal intelligent and automated effects, it can improve the overall sense of technology and user experience of the vehicle; sixthly, since the primary reduction device, the increase in speed device and the final reduction device can reflect a good modular effect, it is convenient to manufacture, install and maintain, and can replace damaged parts in a targeted manner to save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of part A; Figure 3 for Figure 1 A schematic diagram of the speed increasing device as viewed from the rear side shown; Figure 4 It is a schematic diagram of an application example of the present invention. DETAILED DESCRIPTION

[0020] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0021] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on the current Figure 1 The position state is taken as an example, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0022] See also Figure 1, showing a lower slide rail 1, which is fixed to the floor of the car body when in use (to be mentioned later), and forms a lower slide rail cavity 11 with an open upper portion in the length direction of the lower slide rail 1; showing an upper slide rail 2, which forms a sliding pair with the aforementioned lower slide rail 1; showing a seat basin connecting plate 3, which is fixedly connected to the aforementioned upper slide rail 2; showing a screw rod 4, which is arranged in the aforementioned lower slide rail cavity 11 at a position corresponding to the lower position in the length direction of the aforementioned upper slide rail 2; showing an intelligent speed change mechanism 5.

[0023] The technical highlights of the technical solution to be provided as the invention are as follows: the aforementioned intelligent speed change mechanism 5 includes a primary reduction device 51, an increasing device 52 and a final reduction device 53, the primary reduction device 51 is fixed to the middle front side of the length direction of the aforementioned seat basin connecting plate 3, and is transmission-connected to the increasing device 52, and the increasing device 52 is fixed to the middle rear side of the length direction of the seat basin connecting plate 3 at a position corresponding to the primary reduction device 51, and is transmission-connected to the final reduction device 53, and the final reduction device 53 is transmission-coordinated with the aforementioned screw rod 4 in a left-right movable manner and is connected to the aforementioned movable slide rail 2.

[0024] See you next time Figure 1 A primary reduction gear fixing mounting plate 31 is fixed in the middle of the length direction of the aforementioned seat basin connecting plate 3, and the lower part of the primary reduction gear fixing mounting plate 31 is folded backward in a horizontal state to a speed increasing gear fixing mounting plate 311, the aforementioned primary reduction gear 51 is fixed to the front side of the primary reduction gear fixing mounting plate 31, and the aforementioned speed increasing gear 52 is fixed to the speed increasing gear fixing mounting plate 311, and the primary reduction gear 51 passes through the primary reduction gear fixing mounting plate 31 and is transmission connected with the speed increasing gear 52, and the speed increasing gear 52 passes through the speed increasing gear fixing mounting plate 311 and the upper slide rail 2 downward in sequence and is transmission connected with the aforementioned final reduction gear 53 which is transmission-coordinated with the aforementioned screw rod 4 and moves left and right.

[0025] See you next time Figure 1The preferred but not absolutely limited structure of the aforementioned primary reduction device 51 is as follows: it includes a motor 511, a reduction box 512 and a spline shaft 513, the motor 511 is arranged in a horizontal state and is drivingly connected to the reduction box power input shaft of the reduction box 512 at a position corresponding to the right side of the reduction box 512, and the reduction box 512 together with the motor 511 is fixed to the front side of the aforementioned primary reduction device fixed mounting plate 31, and the rear end of the spline shaft 513 is connected to the reduction box final power output shaft 513 of the reduction box 512. The rear end of the spline shaft 513 passes through the spline hole 51211 of the final power output shaft of the reduction box 21 and extends to the rear side of the reduction box 512 and then extends to the rear side of the aforementioned primary reduction device fixed mounting plate 31 to be transmission-connected with the aforementioned speed increasing device 52. The front end of the spline shaft 513 is transmission-connected with the speed increasing device 52 on the adjacent speed increasing device fixed mounting plate 311 which is also arranged on the rear side of the corresponding seat basin connecting plate 3 ( Figure 4 Show).

[0026] Depend on Figure 1 As shown, a worm gear box support cavity 24 is provided in the middle of the length direction of the aforementioned upper slide rail 2, and a worm gear shaft clearance hole 241 is provided at a position corresponding to one side of the middle of the worm gear box support cavity 24. After passing through the aforementioned speed increaser fixing mounting plate 311, the aforementioned speed increaser 52 is transmission-connected with the aforementioned final-stage speed reduction device 53 so that the final-stage speed reduction device 53 moves left and right along the aforementioned screw 4.

[0027] See also Figures 2 to 3 And combined with Figure 1A spline shaft clearance hole 312 is provided on the aforementioned primary reduction device fixed mounting plate 31, and a worm shaft sleeve matching hole 3111 is provided on the aforementioned speed increasing device fixed mounting plate 311; the preferred but not absolutely limited structure of the aforementioned speed increasing device 52 is as follows: it includes a speed increasing worm gear box 521, a speed increasing worm gear box cover 522, a speed increasing worm wheel 523, a speed increasing worm 524 and a worm gear sleeve 525, the lower part of the speed increasing worm gear box 521 is formed with a speed increasing worm gear box seat 5211, the speed increasing worm gear 524 is provided with a worm gear sleeve 525, and the speed increasing worm gear box 521 is provided with a worm gear box seat 5211. The rod box seat 5211 is fixed to the upward side of the aforementioned speed increasing device fixing mounting plate 311 by means of the speed increasing worm gear box seat fixing screws 52111, the worm gear shaft sleeve 525 is fitted with the aforementioned worm gear shaft sleeve matching hole 3111, and a speed increasing worm gear shaft through hole 5251 is formed in the middle of the worm gear shaft sleeve 525, which runs from the upper part to the lower part. The speed increasing worm wheel 523 and the speed increasing worm 524 are arranged in the speed increasing worm gear box 521 and mesh with each other, wherein the speed increasing worm gear shaft 5231 of the speed increasing worm wheel 523 is The lower end extends to the lower part of the speed increasing worm gear box 521, and after passing through the aforementioned speed increasing worm gear shaft through hole 5251, it is in transmission cooperation with the aforementioned final stage reduction device 53, and the upper end is inserted into the box cover shaft hole 5222 provided on the speed increasing worm gear box cover 522, and the speed increasing worm shaft spline hole 52411 of the speed increasing worm shaft 5241 of the speed increasing worm 524 corresponds to the spline hole 51211 of the final stage power output shaft of the aforementioned reduction box, and the rear end of the aforementioned spline shaft 513 extends after passing through the aforementioned spline shaft clearance hole 312. The speed increasing worm shaft is inserted into the spline hole 52411 and is transmission-coordinated with the speed increasing worm shaft 5241. The speed increasing worm gear case cover 522 is fixed to the worm gear case fixing screw hole 5212 provided on the speed increasing worm gear case 521 by means of the speed increasing worm gear case cover fixing screw 5221. A pair of speed reducing box fixing studs 313 are arranged on the front side of the aforementioned primary reduction device fixing mounting plate 31. The aforementioned speed reducing box 512 is fixed to the aforementioned pair of speed reducing box fixing studs 313 by means of a pair of speed reducing box fixing screws 5122.

[0028] Please see Figure 1The structure of the above-mentioned final reduction device 53 is preferably, but not absolutely limited to, as follows: it includes a final worm gear reduction box support 531 and a final worm gear reduction box 532, the upper part of the final worm gear reduction box support 531 is embedded with the above-mentioned upper slide rail 2 at a position corresponding to the above-mentioned worm gear box support embedding cavity 24, so as to achieve connection with the upper slide rail 2, and the final worm gear reduction box 532 is arranged on the final worm gear reduction box support 531 and is connected to the final worm gear reduction box support 531 together with the final worm gear reduction box. The speed box 532 is movably matched with the aforementioned screw 4, and the lower end of the aforementioned speed-increasing worm gear shaft 5231 is transmitted and matched with the final worm gear shaft hole 5331 of the final worm gear 533 of the final worm gear reduction box 532 after passing through the aforementioned speed-increasing worm gear shaft through hole 5251 and the aforementioned worm gear shaft yield hole 241, and the final worm gear 533 is transmitted and matched with the final worm gear reduction box worm wheel in the final worm gear reduction box 532, and the worm wheel of the final worm gear reduction box is movably matched with the aforementioned screw 4.

[0029] In this embodiment, the motor 511 is a brushless DC motor with forward and reverse rotation functions.

[0030] Please see the key Figure 1 The lower rail cavity 11 of the aforementioned lower rail 1 is composed of a lower rail bottom plate 12, a lower rail front folding plate 13 and a lower rail rear folding plate 14. The lower rail front folding plate 13 is formed by folding upward the front side of the lower rail bottom plate 12 in the length direction, and is folded toward the lower rail cavity 11 at the upper part of the length direction of the lower rail front folding plate 13 to form an upper rail front folding edge matching groove 131. The lower rail rear folding plate 14 is formed by folding upward the rear side of the lower rail bottom plate 12 in the length direction, and is folded toward the lower rail cavity 11 at the upper part of the length direction of the lower rail rear folding plate 14 to form an upper rail rear folding edge matching groove 141. The lower rail front and rear folding plates 13, 14 correspond to each other front and back, and the upper ... The rear folding edge matching grooves 131, 141 correspond to each other front to back and have an N-shaped cross-sectional shape; the front side in the longitudinal direction of the aforementioned upper slide rail 2 is folded upward to form an upper slide rail front folding edge groove 21 with a U-shaped cross-sectional shape and matching with the aforementioned upper slide rail front folding edge matching groove 131; the rear side in the longitudinal direction of the upper slide rail 2 is folded upward to form an upper slide rail rear folding edge groove 22 with the same U-shaped cross-sectional shape and matching with the upper slide rail rear folding edge matching groove 141; a pair of rollers 23 are rotatably provided at the left end bottom (also called the lower side) and the right end bottom (also called the lower side) of the upper slide rail 2 through roller shafts, and the pair of rollers 23 and the upper side of the aforementioned lower slide rail bottom plate 12 form a rolling pair.

[0031] exist Figure 1The figure shows the roller shaft support plate 25 for setting the roller shaft 231 at the left and right ends of the lower rail 2. A front clearance eliminating mechanism 6 is provided on the upper rail groove front groove wall 211 on the side of the upper rail front folding groove 21 facing outward and at the left and right ends of the upper rail groove front groove wall 211, and a rear clearance eliminating mechanism 7 is provided on the upper rail groove rear groove wall 221 on the side of the upper rail rear folding groove 22 facing outward and at the left and right ends of the upper rail groove rear groove wall 221. The front clearance eliminating mechanism 6 eliminates the gap between the upper rail front folding matching groove 131 and the upper rail front folding groove 21 and makes the groove walls of each other form a sliding pair. The rear clearance eliminating mechanism 7 eliminates the gap between the upper rail front folding matching groove 131 and the upper rail front folding groove 21 and makes the groove walls of each other form a sliding pair. The gap between the rear folding groove 141 of the upper slide rail and the rear folding groove 22 of the upper slide rail makes the groove walls of each other form a sliding pair; an embedded protrusion cavity 26 is opened in a spaced state in the middle part of the length direction of the aforementioned upper slide rail 2, and an embedded protrusion 33 is formed in a spaced state in the lower part of the length direction of the seat basin connecting plate 3, the position of the embedded protrusion 33 corresponds to the embedded protrusion cavity 26 and is embedded with the embedded protrusion cavity 26 by the mortise and tenon fitting effect, and a seat basin connecting plate nut seat 32 is fixed to the upper left and right ends of the seat basin connecting plate 3.

[0032] Preferably, the embedded protrusions 33 corresponding to the positions of the grooves 5252 at both ends of the aforementioned worm gear sleeve 525 are embedded in the grooves 5252 at both ends.

[0033] A pair of upper slide rail guide mechanisms 8 are provided at a side of the middle part of the upper slide rail 2 facing downward, each of which includes a sleeve seat fixing plate 81 and a sleeve seat 82. The sleeve seat fixing plate 81 is welded to the side of the movable slide rail 2 facing downward, and the sleeve seat 82 is fixed to the left side of the sleeve seat fixing plate 81 by a sleeve seat fixing screw 822. A sleeve seat screw sliding hole 821 is formed on the sleeve seat 82, and the sleeve seat screw sliding hole 821 corresponds to the sleeve seat fixing plate screw sliding hole provided on the sleeve seat fixing plate 81. The sleeve seat screw sliding hole 821 and the sleeve seat fixing plate screw sliding hole are jointly sleeved on the aforementioned screw 4 and form a sliding pair with the screw 4. This structural setting can make the movement (left and right movement) of the upper slide rail 2 more stable.

[0034] Since the structure of the aforementioned rear anti-backlash mechanism 7 is the same as that of the aforementioned front anti-backlash mechanism 6, the applicant will only explain the front anti-backlash mechanism 6 below. The front anti-backlash mechanism 6 includes a roller retainer 61 and a roller 62. The roller retainer 61 is inserted into the front groove wall 211 of the aforementioned upper slide rail groove, and the roller 62 is arranged on the roller retainer 61. The roller 62 makes the front groove wall 211 of the aforementioned upper slide rail groove and the groove wall of the aforementioned upper slide rail front folding edge matching groove 131 form a sliding pair with each other.

[0035] See you next time Figure 1A screw support seat fixing screw clearance hole 121 is provided on the aforementioned lower rail bottom plate 12 and at positions corresponding to the left end and the right end of the aforementioned screw rod 4 respectively. The left end and the right end of the aforementioned screw rod 4 are respectively arranged on the screw support seat 41, and the left end of the screw rod 4 is threadedly matched with the screw support seat 41 located at the left end, while the right end of the screw rod 4 extends to the right side of the screw support seat 41 at the right end and is locked by the screw right end locking nut 42. This is because the left end of the screw rod 4 is threadedly matched with the screw support seat 41 at the left end, while the right end of the screw rod 4 and the corresponding area of ​​the screw support seat 41 at the right end are bare rod matches, so it is necessary to use the screw right end locking nut 42 to lock it. The bottom of the aforementioned screw support seat 41 is screwed upwardly into the bottom of the screw support seat 41 from the bottom of the lower rail bottom plate 12 toward the aforementioned lower rail cavity 11 at a position corresponding to the aforementioned screw support seat screw clearance hole 121, thereby fixing the screw support seat 41 to the lower rail bottom plate 12 in the aforementioned lower rail cavity 11; pad fixing holes 122 are provided at intervals in the length direction of the lower rail bottom plate 12 of the aforementioned lower rail 1, and a pad 1221 is provided at a position corresponding to the pad fixing hole 122 and below the lower rail bottom plate 12. In the use state, the pad fixing screw fixes the lower rail bottom plate 12 together with the pad 1221 to the vehicle's car floor at a position corresponding to the pad fixing hole 122, and the lower rail bottom plate 12 also cooperates with the positioning column holes preset on the vehicle's car floor through the spacing distributed positioning columns 123.

[0036] The invention also relates to a car seat, which has the above-mentioned split-type electric adjustment slide rail for the car seat with multi-stage deceleration.

[0037] See also Figure 4 According to common sense, for a car seat, there is a pair of upper and lower slide rails 1 and 2 that slide with each other, located at Figure 4 In the structural system of the upper and lower sliding rails 1 and 2 on the front side of the position state shown, the primary reduction device 51 is omitted, that is, the motor 511 and the reduction box 512 are omitted.

[0038] Applicant combination Figures 1 to 4The working principle of the present invention is briefly described. Since the motor 511 of the structural system of the aforementioned primary reduction device 51 is controlled by an ECU (automotive electronic control unit) with intelligent functions, when the passenger needs to adjust the car seat, for example, to the right, the primary reduction device 51 can be operated by operating the button arranged on the side or bottom of the car seat or other reasonable positions. Specifically, the motor 511 works, the motor 511 drives the reduction box 512, and the reduction box 512 drives the spline shaft 513, so that the reduction box 512 drives the speed increasing device 52 via the spline shaft 513. Specifically, the aforementioned spline shaft 513 drives the speed-increasing worm 524, which drives the speed-increasing worm wheel 523, and the speed-increasing worm wheel shaft 5231 of the speed-increasing worm wheel 523 drives the worm in the final worm gear reducer 532 of the final worm gear reducer 532 of the final reduction device 53, and the worm drives the worm wheel to move rightward along the screw 4, so as to achieve the purpose of adjusting the position of the car seat. When the car seat needs to be adjusted to the left, it is only necessary to reverse the operation of the aforementioned button to make the motor 511 rotate in the opposite direction.

[0039] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. An electric adjustment rail for a car seat with an intelligent speed change function, comprising a lower rail (1), which is fixed to a car compartment floor in a use state and has a lower rail cavity (11) with an upper opening formed in the length direction of the lower rail (1); an upper rail (2), which forms a sliding pair with the lower rail (1); a seat basin connecting plate (3), which is fixedly connected to the upper rail (2); a screw rod (4), which is arranged in the lower rail cavity (11) at a position corresponding to the lower position in the length direction of the upper rail (2); and an intelligent speed change mechanism (5), characterized in that: The intelligent speed change mechanism (5) comprises a primary reduction device (51), an increasing device (52) and a final reduction device (53); the primary reduction device (51) is fixed to the middle front side of the length direction of the seat seat basin connecting plate (3) and is connected to the increasing device (52); the increasing device (52) is fixed to the middle rear side of the length direction of the seat seat basin connecting plate (3) at a position corresponding to the primary reduction device (51) and is connected to the final reduction device (53); the final reduction device (53) is matched with the screw rod (4) in a transmission manner so as to move left and right and is connected to the movable slide rail (2).

2. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 1 is characterized in that: A primary reduction device fixing mounting plate (31) is fixed in the middle of the length direction of the seat basin connecting plate (3), and the lower part of the primary reduction device fixing mounting plate (31) is folded backward in a horizontal state to a speed increasing device fixing mounting plate (311), the primary reduction device (51) is fixed to the front side of the primary reduction device fixing mounting plate (31), and the speed increasing device (52) is fixed to the speed increasing device fixing mounting plate (311), and the primary reduction device (51) passes through the primary reduction device fixing mounting plate (31) and is transmission-connected with the speed increasing device (52), and the speed increasing device (52) passes through the speed increasing device fixing mounting plate (311) and the upper slide rail (2) downward in sequence and is transmission-connected with the final reduction device (53) which is transmission-coordinated with the screw rod (4) in a manner of moving left and right.

3. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 2 is characterized in that: The primary reduction device (51) comprises a motor (511), a reduction box (512) and a spline shaft (513); the motor (511) is arranged in a horizontal state and is connected to the reduction box power input shaft of the reduction box (512) at a position corresponding to the right side of the reduction box (512), and the reduction box (512) and the motor (511) are fixed to the front side of the primary reduction device fixed mounting plate (31); the rear end of the spline shaft (513) is matched with the spline hole (51211) of the reduction box final power output shaft (5121) of the reduction box (512); the rear end of the spline shaft (513) extends to the rear side of the reduction box (512) after passing through the spline hole (51211) of the reduction box final power output shaft and continues to rotate. The spline shaft (513) extends to the rear side of the primary reduction device fixed mounting plate (31) and is transmission-connected to the speed increasing device (52). The front end of the spline shaft (513) is transmission-connected to the speed increasing device (52) on the adjacent speed increasing device fixed mounting plate (311) which is also arranged on the rear side of the corresponding seat basin connecting plate (3). A worm gear box support embedding cavity (24) is provided in the middle of the length direction of the upper slide rail (2), and a worm gear shaft clearance hole (241) is provided at a position corresponding to one side of the middle of the worm gear box support embedding cavity (24). After passing through the speed increasing device fixed mounting plate (311), the speed increasing device (52) is transmission-connected to the final reduction device (53) so that the final reduction device (53) moves left and right along the screw (4).

4. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 3 is characterized in that: A spline shaft clearance hole (312) is provided on the primary reduction device fixed mounting plate (31), and a worm gear sleeve matching hole (3111) is provided on the speed increasing device fixed mounting plate (311); the speed increasing device (52) comprises a speed increasing worm gear box (521), a speed increasing worm gear box cover (522), a speed increasing worm wheel (523), a speed increasing worm (524) and a worm gear sleeve (525); the lower part of the speed increasing worm gear box (521) is constituted by a speed increasing worm gear box seat (5211), and the speed increasing worm gear box seat (5211) is connected to the speed increasing worm gear box seat (5211). The overspeed worm gear box seat fixing screw (52111) is fixed to the upward side of the speed increasing device fixing mounting plate (311), the worm gear shaft sleeve (525) is fitted with the worm gear shaft sleeve matching hole (3111), and a speed increasing worm gear shaft through hole (5251) is formed in the middle of the worm gear shaft sleeve (525) and passes through from the upper part to the lower part. The speed increasing worm gear (523) and the speed increasing worm (524) are arranged in the speed increasing worm gear box (521) and mesh with each other, wherein the lower end of the speed increasing worm gear shaft (5231) of the speed increasing worm gear (523) extends to The worm gear box (521) is located below the speed increasing worm gear box (521), and after passing through the speed increasing worm gear shaft through hole (5251), it is in transmission cooperation with the final stage reduction device (53), and the upper end thereof is inserted into the box cover shaft hole (5222) provided on the speed increasing worm gear box cover (522), the speed increasing worm shaft spline hole (52411) of the speed increasing worm shaft (5241) of the speed increasing worm gear (524) corresponds to the spline hole (51211) of the final stage power output shaft of the reduction box, and the rear end of the spline shaft (513) is extended to the spline shaft after passing through the spline shaft clearance hole (312). The spline hole (52411) of the speed-increasing worm shaft is in transmission cooperation with the speed-increasing worm shaft (5241), and the speed-increasing worm gear case cover (522) is fixed to the worm gear case fixing screw hole (5212) provided on the speed-increasing worm gear case (521) through the speed-increasing worm gear case cover fixing screw (5221); a pair of speed reduction box fixing studs (313) are arranged on the front side of the primary speed reduction device fixed mounting plate (31), and the speed reduction box (512) is fixed to the pair of speed reduction box fixing studs (313) through a pair of speed reduction box fixing screws (5122).

5. The electric adjustable slide rail for automobile seat with intelligent speed change function according to claim 4 is characterized in that: The final stage reduction device (53) comprises a final stage worm gear reduction box support (531) and a final stage worm gear reduction box (532), the upper part of the final stage worm gear reduction box support (531) is embedded with the upper slide rail (2) at a position corresponding to the worm gear box support embedding cavity (24), the final stage worm gear reduction box (532) is arranged on the final stage worm gear reduction box support (531) and the final stage worm gear reduction box support (531) together with the final stage worm gear reduction box (532) and the screw (4) The lower end of the speed-increasing worm gear shaft (5231) is matched with the final worm gear shaft hole (5331) of the final worm gear (533) of the final worm gear reduction box (532) after passing through the speed-increasing worm gear shaft through hole (5251) and the worm gear shaft clearance hole (241), and the final worm gear (533) is matched with the final worm gear reduction box worm wheel in the final worm gear reduction box (532), and the final worm gear reduction box worm wheel is matched with the screw (4) in a left-right movable manner.

6. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 3 is characterized in that: The motor (511) is a brushless DC motor with forward and reverse rotation functions.

7. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 1 is characterized in that: The lower rail cavity (11) of the lower rail (1) is composed of a lower rail bottom plate (12), a lower rail front folding plate (13) and a lower rail rear folding plate (14); the lower rail front folding plate (13) is formed by folding the front side of the lower rail bottom plate (12) in the length direction upward, and the upper part of the lower rail front folding plate (13) in the length direction is folded toward the direction of the lower rail cavity (11) to form an upper rail front folding edge matching groove (131); the lower rail rear folding plate (14) is formed by folding the rear side of the lower rail bottom plate (12) in the length direction upward, and the upper part of the lower rail rear folding plate (14) in the length direction is folded toward the direction of the lower rail cavity (11) to form an upper rail rear folding edge matching groove (131). The front and rear folding plates (13, 14) of the lower rail correspond to each other front to back, and the front and rear folding matching grooves (131, 141) of the upper rail correspond to each other front to back and have an N-shaped cross-sectional shape; the front side of the upper rail (2) in the longitudinal direction is folded upward to form an upper rail front folding groove (21) with a U-shaped cross-sectional shape and matching with the upper rail front folding matching groove (131); the rear side of the upper rail (2) in the longitudinal direction is folded upward to form an upper rail rear folding groove (22) with a U-shaped cross-sectional shape and matching with the upper rail rear folding matching groove (141); the left bottom and right bottom of the upper rail (2) are rotated by roller shafts A pair of rollers (23) are arranged on the upper side of the lower slide rail bottom plate (12), and the pair of rollers (23) and the side of the lower slide rail bottom plate (12) facing upward form a rolling pair; a front clearance eliminating mechanism (6) is arranged on the upper slide rail groove front groove wall (211) on the side of the upper slide rail front folding groove (21) facing outward and located at the left end and the right end of the upper slide rail groove front groove wall (211); a rear clearance eliminating mechanism (7) is arranged on the upper slide rail groove rear groove wall (221) on the side of the upper slide rail rear folding groove (22) facing outward and located at the left end and the right end of the upper slide rail groove rear groove wall (221); the front clearance eliminating mechanism (6) eliminates the gap between the upper slide rail front folding groove (131) and the upper slide rail front folding groove (21) and makes them The groove walls constitute a sliding pair, and the gap between the upper slide rail rear folding edge matching groove (141) and the upper slide rail rear folding edge groove (22) is eliminated by a rear clearance eliminating mechanism (7) and the groove walls of each other constitute a sliding pair; an embedded convex block cavity (26) is provided in an interval state in the middle of the length direction of the upper slide rail (2), and an embedded convex block (33) is formed in an interval state in the lower part of the length direction of the seat seat basin connecting plate (3), the position of the embedded convex block (33) corresponds to the embedded convex block cavity (26) and is embedded with the embedded convex block cavity (26) by a mortise and tenon matching effect, and a seat seat basin connecting plate nut seat (32) is fixed to the upper left end and the right end of the seat seat basin connecting plate (3);A pair of upper slide rail guide mechanisms (8) are provided at a downward side of the middle part of the upper slide rail (2), each of the pair of movable slide rail guide mechanisms (8) comprising a sleeve seat fixing plate (81) and a sleeve seat (82), the sleeve seat fixing plate (81) being welded to the downward side of the movable slide rail (2), the sleeve seat (82) being fixed to the left side of the sleeve seat fixing plate (81) by means of a sleeve seat fixing screw (822), a sleeve seat screw rod sliding matching hole (821) being formed on the sleeve seat (82), the sleeve seat screw rod sliding matching hole (821) corresponding to the sleeve seat fixing plate screw rod sliding matching hole provided on the sleeve seat fixing plate (81), the sleeve seat screw rod sliding matching hole (821) and the sleeve seat fixing plate screw rod sliding matching hole being jointly sleeved on the screw rod (4) and forming a sliding pair with the screw rod (4).

8. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 7 is characterized in that: The structure of the rear clearance eliminating mechanism (7) is the same as that of the front clearance eliminating mechanism (6), and the front clearance eliminating mechanism (6) comprises a roller retainer (61) and a roller (62), the roller retainer (61) is inserted into the front groove wall (211) of the upper slide rail groove, and the roller (62) is arranged on the roller retainer (61), and the roller (62) makes the front groove wall (211) of the upper slide rail groove and the groove wall of the upper slide rail front folding matching groove (131) form a sliding pair with each other.

9. The electric adjustment slide rail for automobile seats with intelligent speed change function according to claim 7, characterized in that: A screw support seat fixing screw clearance hole (121) is provided on the lower rail bottom plate (12) and at positions corresponding to the left end and the right end of the screw rod (4), respectively. The left end and the right end of the screw rod (4) are respectively arranged on the screw support seat (41), and the left end of the screw rod (4) is threadedly matched with the screw support seat (41) located at the left end, while the right end of the screw rod (4) extends to the right side of the screw support seat (41) at the right end and is locked by a screw right end locking nut (42). The bottom of the screw support seat (41) is extended from the bottom of the lower rail bottom plate (12) toward the lower rail cavity (11) at a position corresponding to the screw support seat screw clearance hole (121) by means of a screw support seat fixing screw (411). The bottom of the screw support seat (41) is screwed upward to fix the screw support seat (41) to the lower rail bottom plate (12) in the lower rail cavity (11); pad fixing holes (122) are provided at intervals in the length direction of the lower rail bottom plate (12) of the lower rail (1); a pad (1221) is provided at a position corresponding to the pad fixing hole (122) and below the lower rail bottom plate (12); in a state of use, the lower rail bottom plate (12) together with the pad (1221) is fixed to the vehicle compartment bottom plate at a position corresponding to the pad fixing hole (122) by the pad fixing screw, and the lower rail bottom plate (12) is also matched with the positioning column holes preset on the vehicle compartment bottom plate through the positioning columns (123) distributed at intervals.

10. A car seat, characterized in that: An electric adjustment slide rail for a car seat with an intelligent speed change function as claimed in claim 1.

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