Electric seat capable of being quickly adjusted

Abstract

The utility model discloses an electric seat capable of being quickly adjusted, which comprises a seat rotating shaft in damping rotation, a clutch and an input shaft driven by a driver, the input shaft and the seat rotating shaft are respectively arranged on two sides of the clutch and are connected with the clutch, the input shaft rotates to drive the seat rotating shaft to rotate when the clutch is connected, and the input shaft rotates to drive the seat rotating shaft to rotate when the clutch is connected with the clutch. When the clutch is disconnected, external force drives the seat rotating shaft to rotate. The seat rotating shaft adopting the clutch and damping rotation can ensure that a seat cannot rotate under the action of gravity when the clutch is disconnected; when the whole electric seat is installed, the clutch with the adaptive size can be selected according to the installation space, and the application range is larger; moreover, due to the seat rotating shaft rotating in a damping mode, additional operation steps are not needed, when the clutch is disconnected, the seat can be directly rotated to achieve manual adjustment of the angle of the seat, and operation is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a rapidly adjustable electric seat. Background Art

[0002] With the intelligentization of automobiles, electric seats have become popular in automobiles, and the comfort of electric seats has also been widely accepted. Electric seats electrify the previously mechanically controlled parts, including backrest adjustment, front and rear adjustment, height adjustment, etc., and the high adjustment accuracy is more suitable for drivers to find the most comfortable driving position.

[0003] Electric adjustment, while increasing the adjustment accuracy, also brings certain troubles. Take the seat back as an example. Traditional mechanical seats can complete full-stroke adjustment within 1 second. Electric seats are different. According to the electric movement of most electric seat backs on the market, it takes at least 10 seconds to complete full-stroke adjustment of the backrest. If the driver needs a short break, the adjustment time is long, which adds trouble.

[0004] To this end, there are electric seats that can be manually adjusted in the prior art, such as a patent with patent application number CN202110334185.X and name "A manually adjustable electric angle adjuster adjustment mechanism". In this patent, the clutch is disconnected or connected to achieve the disconnection or connection of the input shaft and the seat rotation shaft, which can realize manual rotation or electric drive of the seat angle.

[0005] In the above patent, the structure of the clutch is improved so that when the clutch is disconnected, the seat rotation shaft can be limited due to the structural limitation of the clutch to prevent the seat rotation shaft from rotating under the action of gravity. If the seat rotation shaft needs to be rotated, the clutch needs to be unlocked, and the seat position can be adjusted only after the clutch plug pin is pulled before the seat is rotated. The clutch structure designed in this patent is complex and requires multiple transmission gears, resulting in a large overall installation volume, which is not conducive to the control of seats in compact cars, cannot be adapted to all car seats, and has a small scope of application; at the same time, since the seat rotation shaft is limited by the clutch, the seat rotation shaft needs to be unlocked when the seat is manually rotated, and the seat cannot be directly moved to achieve adjustment after the clutch is disconnected, resulting in the operation steps being not simple enough. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a quickly adjustable electric seat, which can adjust the seat position without additional operation after the clutch is disconnected, so that the electric seat can meet the requirements of manual adjustment and is simple and fast; and the clutch can directly select various models of clutches in the prior art to adapt to the installation space of different models of vehicles, with less limitations, a wider range of applicability, and more conducive to promotion.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a quickly adjustable electric seat, including a seat rotating shaft with damped rotation, a clutch and an input shaft driven by a driver, wherein the input shaft and the seat rotating shaft are respectively arranged on both sides of the clutch and connected to the clutch, and when the clutch is connected, the rotation of the input shaft drives the seat rotating shaft to rotate, and when the clutch is disconnected, an external force drives the seat rotating shaft to rotate.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model adopts a seat rotating shaft with a clutch and damped rotation, which can ensure that the seat will not rotate under the action of gravity when the clutch is disconnected; when the entire electric seat is installed, a clutch with an adapted volume can be selected according to the installation space, and the scope of application is wider; and, due to the seat rotating shaft with damped rotation, no additional operating steps are required. When the clutch is disconnected, the seat angle can be manually adjusted by directly rotating the seat, and the operation is more convenient.

[0010] Furthermore, a coaxially arranged mechanical damper is provided on the seat rotation axis.

[0011] Furthermore, the driver includes an executing motor and a driving gear and a driving gear that mesh with each other. The driving gear and the executing motor are coaxially fixed, and the driving gear and the input shaft are coaxially fixed.

[0012] Furthermore, it also includes a control unit, which includes a seat controller and a Hall sensor and a magnetic ring used in conjunction with each other. The seat controller is electrically connected to the Hall sensor, the driver and the clutch, and the magnetic ring rotates coaxially with the seat rotation axis.

[0013] Further, the magnetic ring is arranged close to the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the local structure;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model without the execution motor, driving gear and clutch.

[0017] In the figure: actuator motor 1, driving gear 2, input shaft 3, drive gear 4, clutch 5, magnetic ring 6, mechanical damper 7, seat rotation shaft 8, Hall sensor 9, spline segment 10. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] like Figure 1 , 2 As shown in Figure 3, a quickly adjustable electric seat includes a damped rotating seat shaft 8, a clutch 5, an input shaft 3 and a driver. The driver is used to drive the input shaft 3 to rotate. The seat shaft 8 is the central axis of the car seat. The seat shaft 8 and the seat rotate or are fixed at the same time. The input shaft 3 and the seat shaft 8 are respectively arranged on both sides of the clutch 5 and connected to the clutch 5. When the clutch 5 is connected, the rotation of the input shaft 3 drives the seat shaft 8 to rotate. When the clutch 5 is disconnected, the external force drives the seat shaft 8 to rotate. Select the appropriate driver and clutch 5 according to the interior space of the vehicle, and connect the various components according to the above connection relationship. The clutch 5 is usually connected and closed. When in use, if the seat is rotated electrically, the driver works to drive the input shaft 3 to rotate. The clutch 5 is closed and connected, and the input shaft 3 rotates the seat rotation shaft 8. The seat rotation shaft 8 rotates at the same time as the seat, thereby achieving the purpose of electrically adjusting the seat angle. If the seat angle needs to be adjusted manually, the clutch 5 is controlled to be disconnected, and an external force acts on the seat to drive the seat rotation shaft 8 to rotate, thereby realizing manual adjustment. After the adjustment is in place, the clutch 5 is closed and connected, and the seat rotation shaft 8 can be limited by the input shaft 3, thereby realizing manual and electric angle adjustment of the seat.

[0020] The utility model adopts a clutch 5 plus a seat rotating shaft 8 with damped rotation, which can ensure that the seat will not rotate under the action of gravity when the clutch 5 is disconnected; when the entire electric seat is installed, a clutch 5 with an adapted volume can be selected according to the installation space, and the scope of application is wider; and, due to the damped rotation of the seat rotating shaft 8, no additional operating steps are required. When the clutch 5 is disconnected, the seat can be directly rotated to realize manual adjustment of the seat angle, and the operation is more convenient.

[0021] In order to prevent the seat from moving under the action of gravity when the clutch 5 is disconnected, the seat rotation shaft 8 is set to a damped rotation mode. There are many ways to achieve damped rotation of the seat rotation shaft 8, such as friction damping, hydraulic damping, or other structures that can achieve damped rotation to control the seat rotation shaft 8. In the present utility model, a relatively simple friction damping method is used to limit the seat rotation shaft 8 when the clutch 5 is disconnected. Specifically, Figure 1 , 2As shown, a coaxially arranged mechanical damper 7 is provided on the seat rotation shaft 8. The mechanical damper 7 (friction damping) realizes the limit of the seat rotation shaft 8, ensuring that when the clutch 5 is disconnected, the seat will not fall under the action of gravity, and the seat can be moved to adjust the angle under the action of external force, thereby achieving the purpose of reducing the steps of manual adjustment operation. The setting position of the mechanical damper 7 can be selected according to the structure of the car seat and the components of the interior space. In this embodiment, the mechanical damper 7 is arranged close to the end of the seat rotation shaft 8 connected to the clutch 5, which is convenient for the concentration of components and more conducive to the spatial layout of various components.

[0022] Since the electric adjustment of the seat is achieved by the driver driving the input shaft 3, the driver can adopt the drive method of the worm gear in the prior art, or directly set a drive motor on the input shaft 3, the purpose of which is to drive the input shaft 3 to rotate and ensure that when the clutch 5 is closed, the rotation of the input shaft 3 can drive the seat rotation shaft 8 to rotate, so as to achieve the purpose of electric control. In the present utility model, in order to reduce the space layout and adapt to the clutch 5 structure, two gear transmission methods are adopted. Specifically, as Figure 1 As shown, the driver includes an executive motor 1 and a driving gear 2 and a driving gear 4 that mesh with each other. The driving gear 2 and the executive motor 1 are coaxially fixed, and the driving gear 4 and the input shaft 3 are coaxially fixed. The executive motor 1 can be a servo motor, a stepper motor, etc., and any motor that can be used to achieve control. When in use, the clutch 5 is closed and connected, the executive motor 1 works to drive the driving gear 2 to rotate, the driving gear 2 rotates to drive the driving gear 4 to rotate, and the driving gear 4 rotates to drive the seat rotation shaft 8 to rotate, thereby achieving the adjustment of the seat angle.

[0023] In order to realize the key control when adjusting the seat, the utility model also includes a control unit, which includes a seat controller and a Hall sensor 9 and a magnetic ring 6 used in conjunction with each other. The seat controller is electrically connected to the Hall sensor 9, the driver and the clutch 5, and the magnetic ring 6 is coaxially arranged with the seat rotation axis 8. The cooperation of the Hall sensor 9 and the magnetic ring 6 can detect the rotation speed of the actuator motor 1 and the angular position of the seat; the seat controller adopts an ECU control unit, which controls the clutch 5 to close or disconnect and controls the rotation of the actuator motor 1 according to the signal of the Hall sensor 9 and the needs of the user, so as to realize manual or electric adjustment of the seat.

[0024] To make the components more centralized and facilitate the spatial layout of the entire seat, such as Figure 1 , 2As shown, the utility model sets the magnetic ring 6 close to the clutch 5, and at the same time, the magnetic ring 6 is located between the clutch 5 and the mechanical damper 7. In order to make the magnetic ring 6 rotate coaxially with the rotating shaft 8, the magnetic ring 6 can be fixedly connected with the rotating shaft 8 by welding, pin fixing or other methods. In this embodiment, in order to make the installation position of the magnetic ring 6 and the rotating shaft 8 adapt to different types of seats, the magnetic ring 6 is set in this embodiment to be able to move axially along the seat rotating shaft 8. Specifically, in this embodiment, a spline section 10 is provided on the seat rotating shaft 8, and the magnetic ring 6 is sleeved on the spline section 10. The magnetic ring 6 and the seat rotating shaft 8 are connected through the spline section 10, which can make the magnetic ring 6 rotate coaxially with the seat rotating shaft 8 and can also adjust the position along the axial direction of the seat rotating shaft 8, and can change the position of the magnetic ring 6 on the rotating shaft 8, which is convenient for the installation of the Hall sensor 9 and convenient for setting the magnetic ring 6 and the Hall sensor 9 on seats of different models.

[0025] The utility model distinguishes the electric working condition from the manual working condition by adding a controllable clutch structure, and has the electric precise adjustment function, and also meets the requirement of quickly adjusting the seat back in certain specific situations.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rapidly adjustable electric seat, characterized in that: The invention comprises a seat rotating shaft (8) with damped rotation, a clutch (5) and an input shaft (3) driven by a driver. The input shaft (3) and the seat rotating shaft (8) are respectively arranged on both sides of the clutch (5) and connected to the clutch (5). When the clutch (5) is in a connected state, the rotation of the input shaft (3) drives the seat rotating shaft (8) to rotate. When the clutch (5) is in a disconnected state, an external force drives the seat rotating shaft (8) to rotate.

2. The quickly adjustable electric seat according to claim 1, characterized in that: A coaxially arranged mechanical damper (7) is provided on the seat rotation shaft (8).

3. The quickly adjustable electric seat according to claim 1, characterized in that: The driver comprises an executing motor (1) and a driving gear (2) and a driving gear (4) which mesh with each other. The driving gear (2) and the executing motor (1) are coaxially fixed, and the driving gear (4) and the input shaft (3) are coaxially fixed.

4. The quickly adjustable electric seat according to claim 2, characterized in that: The driver comprises an executing motor (1) and a driving gear (2) and a driving gear (4) which mesh with each other. The driving gear (2) and the executing motor (1) are coaxially fixed, and the driving gear (4) and the input shaft (3) are coaxially fixed.

5. A rapidly adjustable electric seat according to any one of claims 1 to 4, characterized in that: It also includes a control unit, which includes a seat controller and a Hall sensor (9) and a magnetic ring (6) used in conjunction with the seat controller. The seat controller is connected to the Hall sensor (9), the driver and the clutch (5) in a telecommunication manner, and the magnetic ring (6) rotates coaxially with the seat rotation shaft (8).

6. The rapidly adjustable electric seat according to claim 5, characterized in that: The magnetic ring (6) is arranged close to the clutch (5).

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