Automobile seat adjusting and driving mechanism and automobile with same

Abstract

The utility model relates to the technical field of automobiles, in particular to an automobile seat adjusting driving mechanism and an automobile with the same. An automobile seat adjustment driving mechanism comprises a first guide rail; the lead screw extends in the length direction of the first guide rail and is mounted in the first guide rail; one side of the second guide rail is located in the first guide rail, and the other side of the second guide rail is used for supporting an automobile seat; a worm and gear type gearbox comprises a box body, a worm and a worm gear. The box body is contained in the first guide rail and connected with the second guide rail, the worm is arranged in the vertical direction, and the worm gear is installed in the box body, arranged on the lead screw in a threaded and sleeved mode and meshed with the worm. The driving part is mounted on the second guide rail; the driving piece comprises a driving shaft, and the driving shaft extends in the vertical direction and is fixedly connected with the worm. Transmission paths of power output of the driving shaft can be effectively reduced, the structure is more compact, shaking during seat adjustment is obviously reduced, and the riding comfort is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile manufacturing, and in particular to an automobile seat adjustment drive mechanism and an automobile thereof. Background Art

[0002] In the automotive field, in order to ensure riding comfort, car seats are usually set to be adjustable. In the related art, the device for adjusting the seat position generally includes a motor, an upper guide rail, a lower guide rail, and a screw rod. The screw rod is fixed to the lower guide rail, the upper guide rail can slide relative to the lower guide rail, and the seat is fixed to the upper guide rail; the output shaft of the motor is connected to the upper guide rail through a transmission assembly, thereby driving the upper guide rail to slide relative to the lower guide rail.

[0003] The existing layout of the motor combined with the transmission components makes the overall power system more complex and the power transmission path longer, causing noticeable vibration of the seat during adjustment. Utility Model Content

[0004] Based on this, it is necessary to provide a car seat adjustment drive mechanism and a car thereof with a simple structure, few power transmission paths and a smooth adjustment process.

[0005] In order to solve the above technical problems, this application provides the following technical solutions:

[0006] A car seat adjustment drive mechanism, the car seat movement mechanism comprises: a first guide rail; a screw rod extending along the length direction of the first guide rail and installed in the first guide rail; a second guide rail extending along the length direction of the first guide rail and along the vertical direction, one side of the second guide rail is located in the first guide rail, and the other side is used to support the car seat; a worm gearbox, comprising a box body, a worm and a worm wheel; the box body is accommodated in the first guide rail and connected to the second guide rail, the worm is arranged along the vertical direction, the worm wheel is installed in the box body and threadedly sleeved on the screw rod, and meshed with the worm; a driving member is installed on the second guide rail; the driving member comprises a driving shaft, the driving shaft is extended and arranged along the vertical direction, and is fixedly connected to the worm rod, and is used to drive the corresponding worm rod to rotate, so that the worm wheel rotates relative to the screw rod; wherein the length direction of the first guide rail is set at an angle to the vertical direction.

[0007] In one of the embodiments, the driving member further includes a mounting plate and a driving body, the mounting plate is horizontally arranged and mounted on the second guide rail, the driving body is fixed on the mounting plate, and the driving shaft is connected to the driving body.

[0008] In one embodiment, the drive shaft is configured as a flexible shaft.

[0009] In one of the embodiments, a rolling unit is installed on the side of the second guide rail along the first direction, and the rolling unit is located inside the first guide rail and is in rolling contact with the inner wall of the first guide rail; wherein the first direction, the length direction of the first guide rail and the vertical direction are arranged perpendicular to each other.

[0010] In one embodiment, the rolling unit includes a first rolling member and a second rolling member, the inner wall of the first guide rail includes a bottom wall and a side wall, the first rolling member is in rolling contact with the bottom wall, and the second rolling member is in rolling contact with the side wall.

[0011] In one embodiment, the number of the first rolling elements is set to be multiple, and the multiple first rolling elements are arranged at intervals on the second guide rail along the length direction of the first guide rail; and / or the number of the second rolling elements is set to be multiple, and the multiple second rolling elements are arranged at intervals on the second guide rail along the length direction of the first guide rail.

[0012] In one embodiment, along the first direction, the second guide rail has two side surfaces arranged opposite to each other, two groups of first rolling elements and two groups of second rolling elements are arranged on each of the side surfaces, and on one side surface of the second guide rail, the two groups of second rolling elements are arranged between the two groups of first rolling elements.

[0013] In one embodiment, the number of the first guide rail, the second guide rail, and the screw rod is two, and the number of the worm gear box and the driving member is two; wherein the two first guide rails are spaced apart along a first direction; and the length direction of the first guide rail, the vertical direction, and the first direction are perpendicular to each other.

[0014] In one embodiment, the vehicle seat adjustment drive mechanism further includes: a controller, which is connected to the two drive members by signals and can drive the two drive members to move synchronously.

[0015] In one embodiment, the car seat adjustment drive mechanism further includes: a frame, which is arranged on a side of the second guide rail away from the first guide rail along the vertical direction and is connected to two of the second guide rails at the same time; and the controller is installed on the frame.

[0016] In order to solve the above technical problems, this application also provides the following technical solutions:

[0017] A car comprises a seat and the car seat adjustment drive mechanism in any one of the above embodiments, wherein the seat is mounted on the car seat adjustment drive mechanism.

[0018] Compared with the prior art, the automobile seat adjustment drive mechanism arranges the driving shaft of the driving member in the vertical direction and combines it with a worm gearbox, so that the power output of the driving member can be transmitted to the screw rod only after one reversal, thereby realizing the movement of the second guide rail on the screw rod. This layout effectively reduces the transmission path of the power output of the driving shaft, and significantly reduces the shaking during seat adjustment, thereby improving the riding comfort. At the same time, the present application adopts a screw rod and a worm wheel for power transmission, and the screw rod and the worm wheel are connected by threads so that they will always remain in meshing, that is, after the seat adjustment is completed, the screw rod and the worm wheel are in a self-locking state, so that the corresponding locking and unlocking structures can be omitted, effectively saving costs; and avoiding the safety risks caused by inadequate locking and the collision sound during the unlocking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the car seat adjustment drive mechanism provided in this application.

[0021] Figure 2 A cross-sectional view of the vehicle seat adjustment drive mechanism provided in the present application along the length direction.

[0022] Figure 3 Provided for this application Figure 2 A partial enlarged view of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the structure provided in the present application in which the first guide rail is omitted.

[0024] Figure 5 This is a schematic diagram of the structure of the connection between the drive member and the gear box provided in this application.

[0025] Figure 6 A cross-sectional view of the driving member and the gear box provided in the present application in the first direction.

[0026] Figure 7 Controller installation diagram provided for this application.

[0027] The reference numerals of the components are as follows:

[0028] 100. Car seat adjustment drive mechanism; 10. First guide rail; 11. Bottom wall; 12. Side wall; 20. Screw; 30. Second guide rail; 31. Rolling unit; 311. First rolling element; 312. Second rolling element; 32. Connecting hole; 40. Worm gearbox; 41. Box body; 42. Worm; 43. Worm wheel; 50. Drive element; 51. Drive shaft; 52. Mounting plate; 53. Drive body; 60. Controller; 70. Frame; 71. Locking element; 210. Bottom plate. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0034] See also Figure 1 The present application provides a car seat adjustment drive mechanism 100, which is used to adjust the front and rear position of a seat on a car so that the seat can adapt to the posture of the occupant and improve riding comfort.

[0035] Please refer to Figures 1 to 7 The car seat adjustment drive mechanism 100 includes a first guide rail 10, a screw 20, a second guide rail 30, a worm gearbox 40 and a driving member 50. The screw 20 extends along the length direction y of the first guide rail 10, and the screw 20 is installed in the corresponding first guide rail 10. The second guide rail 30 extends along the length direction y of the first guide rail 10, and along the vertical direction z, one side of the second guide rail 30 is located inside the first guide rail 10, and the other side is located outside the first guide rail 10 and is used to support the car seat. The worm gearbox 40 includes a box body 41, a worm 42 and a worm wheel 43. The box body 41 is accommodated in the first guide rail 10 and connected to the second guide rail 30. The worm 42 is arranged along the vertical direction z. The worm wheel 43 is installed in the box body 41 and is threadedly sleeved on the screw 20, and meshes with the worm 42. The driving member 50 is mounted on the second guide rail 30, and the driving member 50 includes a driving shaft 51, which is extended along the vertical direction z and fixedly connected to the worm 42, and is used to drive the corresponding worm 42 to rotate, so that the worm wheel 43 rotates relative to the screw 20. The length direction y and the vertical direction z of the first guide rail 10 are arranged at an angle.

[0036] It is understandable that in the present application, by arranging the drive shaft 51 of the drive member 50 along the vertical direction z and combining it with the worm gearbox 40, the power output of the drive member 50 can be transmitted to the screw 20 only after one reversal, thereby realizing the movement of the second guide rail 30 on the screw 20. This layout method not only makes the structure more compact, but also reduces the transmission path of the power output of the drive shaft 51 and significantly reduces the vibration during seat adjustment, thereby improving the riding comfort. At the same time, the present application adopts the screw 20 and the worm wheel 43 for power transmission, and the screw 20 and the worm wheel 43 are connected by threads so that they will always remain in meshing, that is, after the seat adjustment is completed, the screw 20 and the worm wheel 43 are in a self-locking state, thereby omitting the corresponding locking and unlocking structure, effectively saving costs; and avoiding the safety risks caused by inadequate locking and the collision sound during the unlocking process.

[0037] Here, the angle between the length direction y and the vertical direction z of the first guide rail 10 can be 80 degrees, 85 degrees or 90 degrees, etc. In this embodiment, the length direction y and the vertical direction z of the first guide rail 10 are arranged at 90 degrees, and the two are arranged perpendicularly.

[0038] In one embodiment, the number of the first guide rail 10, the screw rod 20, the second guide rail 30, the worm gear box 40 and the driving member 50 are all configured to be two, and the two first guide rails 10 are arranged at intervals along the first direction x; each screw rod 20 corresponds to a first guide rail 10, and the corresponding screw rod 20 is installed in the corresponding first guide rail 10, and one side of each second guide rail 30 is located in the corresponding first guide rail 10, and the other side is used to support the car seat. Each worm gear box 40 corresponds to a second guide rail 30 and is connected thereto, and each driving member 50 corresponds to a second guide rail 30 and is installed on the second guide rail 30, and is used to drive the corresponding worm gear box 40 to move, thereby driving the second guide rail 30 to move relative to the first guide rail 10. Among them, the length direction y, the vertical direction z and the first direction x of the first guide rail 10 are perpendicular to each other. Here, by using a dual drive member 50, it is no longer necessary to provide a connecting structure between the two first guide rails 10 for installing a horizontally arranged motor, thereby greatly saving the space between the two first guide rails 10, making it easier for passengers to extend their feet into the space, further improving riding comfort.

[0039] like Figure 2 and Figure 7 As shown, the first guide rail 10 is locked on the bottom plate 210 of the car by means of fasteners such as screws and bolts, so as to facilitate the disassembly, assembly and maintenance of the first guide rail 10.

[0040] The length of the first guide rail 10 is set to L, and the value range of L is: 600mm≤L≤2000mm. Therefore, the first guide rail 10 is also called a long guide rail. This long guide rail is generally used in situations where there are multiple rows of seats in the back row of the car, and in this environment, the positions of the multiple rows of seats generally need to be adjusted. Here, multiple rows of seats can share the first guide rail 10. In this way, the use cost and installation cost of the first guide rail 10 can be saved. Of course, in the pursuit of comfort, if the space in the back row of the car is large enough, only one row of seats can be set. In this way, combined with the long guide rail, the adjustment range of a row of seats on the first guide rail 10 can be larger, thereby providing a larger rear space for the occupants.

[0041] It should be explained that the value range of L can be 600mm, 700mm, 800mm, 900mm, 1000mm, 1100mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1700mm, 1800mm, 1900mm and 2000mm, etc. Of course, the value of L can also be selected and set according to actual conditions.

[0042] like Figure 4 As shown, the screw rod 20 can be installed inside the first guide rail 10 by fasteners such as screws and bolts. The screw rod 20 is a prior art and will not be described in detail here.

[0043] Preferably, both ends of the screw rod 20 are provided with fasteners (not marked in the figure), that is, both ends of the screw rod 20 are fixed to the first guide rail 10 by fasteners, so as to improve the installation stability of the screw rod 20.

[0044] Please continue to refer to Figure 4 In order to facilitate the sliding of the second guide rail 30 relative to the first guide rail 10, a rolling unit 31 is installed on the side of each second guide rail 30 in the first direction x. The rolling unit 31 is located in the first guide rail 10 and is in rolling contact with the inner wall of the first guide rail 10. This arrangement can reduce the relative friction between the second guide rail 30 and the first guide rail 10, thereby reducing the noise generated by the relative movement of the two and making the second guide rail 30 run more smoothly.

[0045] In one embodiment, the rolling unit 31 includes a first rolling member 311 and a second rolling member 312. The inner wall of the first guide rail 10 includes a bottom wall 11 and a side wall 12. The first rolling member 311 is in rolling contact with the bottom wall 11, and the second rolling member 312 is in rolling contact with the side wall 12. In this way, the first rolling member 311 and the second rolling member 312 are used to realize rolling contact between the second guide rail 30 and the first guide rail 10 in different directions, which can further improve the smoothness of the operation of the second guide rail 30.

[0046] Further, the number of first rolling members 311 is set to be multiple, and the multiple first rolling members 311 are spaced apart on the second guide rail 30 along the length direction y of the first guide rail 10; and / or, the number of second rolling members 312 is set to be multiple, and the multiple second rolling members 312 are spaced apart on the second guide rail 30 along the length direction y of the first guide rail 10.

[0047] In this embodiment, in the first direction x, the second guide rail 30 has two side surfaces disposed opposite to each other, and two groups of first rolling elements 311 and two groups of second rolling elements 312 are disposed on each side surface, and the two groups of second rolling elements are disposed between the two groups of first rolling elements. In addition, on one side surface of the second guide rail 30, the two groups of second rolling elements 312 are disposed between the two groups of first rolling elements 311.

[0048] Further, each group of first rolling members 311 includes two separate first rolling members 311, and each group of second rolling members 312 includes two separate second rolling members 312. On one side of the second guide rail 30, the two separate second rolling members 312 are arranged along the length direction y of the first guide rail 10 and are sandwiched between the two first rolling members 311.

[0049] Here, the first rolling element 311 and / or the second rolling element 312 are configured as components such as rollers or balls.

[0050] like Figure 3 , Figure 5 and Figure 6 As shown, the worm gearbox 40 has a larger transmission ratio than the spur gearbox. When the seat requires the same driving adjustment force, the volume of the worm gearbox 40 can be smaller, so the structure will be more compact and conducive to refined layout. At the same time, the power of the drive member 50 can also be set smaller to save costs. In addition, the transmission of the worm gearbox 40 is also smoother, so the jitter during the adjustment process can be significantly reduced.

[0051] like Figure 5 and Figure 6 As shown, the drive shaft 51 is configured as a flexible shaft. In this way, the structural characteristics of the flexible shaft itself are used to compensate for the installation or transmission error between the drive shaft 51 and the worm gearbox 40, effectively improving the accuracy of the transmission. Specifically, the flexible shaft is fixedly connected to the worm 42, that is, the axis of the worm 42 is parallel to the vertical direction z, so that the worm 42 is driven to rotate around the vertical direction z through the flexible shaft.

[0052] Combination Figure 1 As shown, the driving member 50 further includes a mounting plate 52 and a driving body 53, the mounting plate 52 is horizontally arranged and mounted on the second guide rail 30, the driving body 53 is fixed on the mounting plate 52, and the driving shaft 51 is connected to the driving body 53 to rotate under the drive of the driving body 53. It can be understood that the horizontal arrangement of the mounting plate 52 can provide a basis for the installation of the driving body 53, thereby reducing the difficulty of installing the driving shaft 51 along the vertical direction z.

[0053] In one embodiment, if Figure 7As shown, the car seat adjustment drive mechanism 100 also includes a controller 60, which is connected to the two drive members 50 by signal and can drive the two drive members 50 to move synchronously. In this way, the smoothness of seat adjustment can be guaranteed. Here, the controller 60 can be a single chip microcomputer, LPC, etc.

[0054] For further information, please refer to Figure 7 The car seat adjustment drive mechanism 100 further includes a frame 70, which is disposed on a side of the second guide rail 30 away from the first guide rail 10 along the vertical direction z and is connected to the two second guide rails 30 at the same time, so that the two second guide rails 30 are connected into a whole through the frame 70, thereby improving the overall gravity bearing capacity; the controller 60 is mounted on the frame 70. Here, the controller 60 realizes the signal connection with the driving member 50 through the wire harness.

[0055] like Figure 1 , Figure 2 , Figure 4 As shown, the second guide rail 30 is provided with a connection hole 32, and a locking member 71 such as a bolt or a screw is passed through the connection hole 32, so as to fix the frame 70 on the second guide rail 30. Here, along the length direction y of the first guide rail 10, at least two connection points are provided between each second guide rail 30 and the frame 70, so that the two second guide rails 30 have at least four connection points with the frame 70 in total, which is conducive to improving the connection strength between the frame 70 and the second guide rail 30.

[0056] Furthermore, the angle between the axis of the connection hole 32 and the vertical direction z is an acute angle. In addition, the assembly direction of the locking member 71 is from top to bottom along the vertical direction z. During the assembly process, the operator has a wider field of vision, and it is convenient for the locking member to pass through the connection hole 32 and connect the frame 70 and the second guide rail 30, thereby improving the assembly and disassembly efficiency between the two.

[0057] The present application also provides a car, including a seat (not shown) and a car seat adjustment drive mechanism 100, wherein the seat is mounted on the car seat adjustment drive mechanism 100, so that the position of the seat in the front and rear direction of the car (that is, the length direction y of the first guide rail) is adjusted by the car seat adjustment drive mechanism 100 to provide the occupants with a more comfortable riding space and riding posture.

[0058] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A car seat adjustment drive mechanism, characterized in that: The automobile seat movement mechanism comprises: First rail; A lead screw extending along the length direction of the first guide rail and installed in the first guide rail; A second guide rail extending along the length direction of the first guide rail and in the vertical direction, one side of the second guide rail is located inside the first guide rail, and the other side is used to support the car seat; A worm gearbox, comprising a box body, a worm and a worm wheel; the box body is accommodated in the first guide rail and connected to the second guide rail, the worm is arranged along the vertical direction, the worm wheel is installed in the box body and is threadedly sleeved on the lead screw and meshed with the worm; A driving member is installed on the second guide rail; the driving member includes a driving shaft, which is extended along the vertical direction and fixedly connected to the worm, and is used to drive the corresponding worm to rotate so that the worm wheel rotates relative to the lead screw; wherein the length direction of the first guide rail is set at an angle to the vertical direction.

2. The vehicle seat adjustment drive mechanism according to claim 1, characterized in that: The driving member also includes a mounting plate and a driving body. The mounting plate is horizontally arranged and mounted on the second guide rail. The driving body is fixed on the mounting plate. The driving shaft is connected to the driving body.

3. The vehicle seat adjustment drive mechanism according to claim 1 or 2, characterized in that: The drive shaft is configured as a flexible shaft.

4. The vehicle seat adjustment drive mechanism according to claim 1, characterized in that: Along the first direction, a rolling unit is installed on the side of the second guide rail, and the rolling unit is located in the first guide rail and is in rolling contact with the inner wall of the first guide rail; wherein the first direction, the length direction of the first guide rail and the vertical direction are arranged perpendicular to each other.

5. The vehicle seat adjustment drive mechanism according to claim 4, characterized in that: The rolling unit includes a first rolling member and a second rolling member. The inner wall of the first guide rail includes a bottom wall and a side wall. The first rolling member is in rolling contact with the bottom wall, and the second rolling member is in contact with the side wall.

6. The vehicle seat adjustment drive mechanism according to claim 5, characterized in that: The number of the first rolling elements is set to be multiple, and the multiple first rolling elements are arranged on the second guide rail at intervals along the length direction of the first guide rail; And / or, the number of the second rolling elements is set to be multiple, and the multiple second rolling elements are arranged on the second guide rail at intervals along the length direction of the first guide rail.

7. The vehicle seat adjustment drive mechanism according to claim 6, characterized in that: Along the first direction, the second guide rail has two side surfaces arranged opposite to each other, each of the side surfaces is provided with two groups of first rolling elements and two groups of second rolling elements; and on one side surface of the second guide rail, the two groups of second rolling elements are arranged between the two groups of first rolling elements.

8. The vehicle seat adjustment drive mechanism according to claim 1, characterized in that: The number of the first guide rail, the second guide rail and the lead screw is two, and the number of the worm gear box and the driving member is two; Wherein, the two first guide rails are arranged at intervals along the first direction; the length direction of the first guide rail, the vertical direction and the first direction are arranged perpendicular to each other.

9. The vehicle seat adjustment drive mechanism according to claim 8, characterized in that: The automobile seat adjustment drive mechanism also includes: The controller is connected to the two driving members by signals and can drive the two driving members to move synchronously.

10. An automobile, characterized in that: The invention comprises a seat and a car seat adjustment drive mechanism as claimed in any one of claims 1 to 9, wherein the seat is mounted on the car seat adjustment drive mechanism.

Images