Electric driver, vehicle window lifting device and vehicle

Abstract

The utility model relates to an electric driver, a vehicle window lifting device and a vehicle. The electric driver comprises a shell, a motor, a rotating shaft, a friction pad and a damping component, the rotating shaft is arranged in the shell and provided with a first end and a second end which are opposite, the first end of the rotating shaft is connected with an output shaft of the motor so that the rotating shaft can be driven to rotate, and the friction pad is provided with a first side and a second side which are opposite. The first side of the friction liner is in contact with the second end of the rotating shaft, the damping component is arranged in the concave part of the shell, is in contact with the second side of the friction liner and is used for providing damping buffer in the axial direction of the rotating shaft, and the part, not in contact with the damping component, of the second side of the friction liner is provided with a buffer part. The buffer part protrudes toward the inner wall of the housing in the axial direction of the rotating shaft. The electric driver can effectively reduce or eliminate the problems of noise, impact and the like in an existing product, improves the product quality, and can bring more comfortable use experience to a user.

Description

Technical Field

[0001] The present invention relates to the field of electromechanical devices, and more particularly to electric drives, window lifts and vehicles. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present disclosure. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present disclosure.

[0003] People use many vehicles in modern society, and these vehicles are usually equipped with windows to meet the needs of lighting inside the car, ventilation with the outside environment, and vision of the driver and passengers. People can operate the windows manually, such as raising the windows (until they are completely closed) or lowering them (until they are completely open), etc., or they can configure electromechanical devices for the windows to perform related operations. This type of electromechanical device for window lifting and lowering operations is easy to operate, labor-saving and efficient, and can bring great convenience to people. However, the present application finds that some existing devices still have shortcomings in terms of structural construction, functional application, product quality, etc. For example, some devices may produce loud noises under certain load conditions, generate certain impacts and vibrations during operation, and some parts may be prone to wear or failure during use. These problems will not only bring a poor user experience to users, but may even cause trouble, thereby causing them to form a negative evaluation of product quality, but will also affect the product's service life and increase the user's maintenance costs. Utility Model Content

[0004] In view of this, the present application provides an electric drive, a window lift device and a vehicle, which can solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art, or can provide an alternative technical solution for the prior art.

[0005] According to the first aspect of the present application, an electric drive is first provided, which includes a housing, a motor, a rotating shaft, a friction pad and a damping component. The rotating shaft is arranged in the housing and has a first end and a second end relative to each other. The first end of the rotating shaft is connected to the output shaft of the motor so that the rotating shaft is driven to rotate. The friction pad has a first side and a second side relative to each other. The first side of the friction pad is in contact with the second end of the rotating shaft. The damping component is arranged in a recessed portion of the housing and in contact with the second side of the friction pad to provide damping buffering in the axial direction of the rotating shaft. A buffer portion is provided on the portion of the second side of the friction pad that is not in contact with the damping component. The buffer portion protrudes toward the inner wall of the housing in the axial direction of the rotating shaft and can contact the inner wall of the housing when the damping component provides damping buffering.

[0006] In the electric drive according to the present application, optionally, the buffer portion is a spherical structure.

[0007] In the electric drive according to the present application, optionally, the number of the buffer portions is at least three, and the at least three buffer portions are evenly arranged around the center of the friction lining and are made of plastic integrally molded with the friction lining.

[0008] In the electric drive according to the present application, optionally, the buffer portion includes a single continuous or discontinuous annular structure, the annular structure is made of a rubber material, and is fixed to the friction lining by secondary injection molding.

[0009] In the electric drive according to the present application, optionally, the electric drive includes a worm gear mechanism, the rotating shaft is a worm in the worm gear mechanism, and after the worm is driven to rotate by the output shaft of the motor, the worm causes a worm wheel matched with the worm to rotate and output power outward, wherein the friction pad is capable of bearing the axial force and / or radial force applied to it by the rotating shaft; and / or

[0010] The circumferential outer side of the friction pad is provided with a limiting structure for preventing rotation, and the shell is provided with a matching structure for matching with the limiting structure, wherein the limiting structure is one of the boss or the groove, and the matching structure is the other of the boss or the groove.

[0011] Secondly, according to a second aspect of the present application, an electric drive is further provided, comprising a housing, a motor, and a rotating shaft, wherein the rotating shaft is disposed within the housing and has a first end and a second end opposite to each other, the first end of the rotating shaft being connected to an output shaft of the motor so that the rotating shaft is driven to rotate, and the electric drive further comprising:

[0012] A friction pad comprising: a body having a first side and a second side opposite to each other, the first side of the body being in contact with the second end of the rotating shaft; and a rod portion, one end of the rod portion being fixedly connected to the second side of the body and the rod portion being movable in the recess of the housing along the axial direction of the rotating shaft; and

[0013] The damping structure is located between the main body and the inner wall of the shell and is fixed to a portion of the second side of the main body that is not connected to the rod portion, so as to provide damping and buffering in the axial direction of the rotating shaft.

[0014] In the electric drive according to the present application, optionally, at least three protrusions are provided on the second side of the body, and the three protrusions do not extend beyond the damping structure in the axial direction of the rotating shaft.

[0015] In the electric drive according to the present application, optionally, the body and the rod are made of plastic in one piece; and / or

[0016] A limiting structure for preventing rotation is provided on the circumferential outer side of the friction pad, and the limiting structure is a boss or a groove.

[0017] In addition, according to a third aspect of the present application, a window lift device for a vehicle is provided, comprising:

[0018] An electric drive as described in any one of the above; and

[0019] The operating mechanism is arranged between the power output end of the electric drive and the vehicle window, and is used to receive power output from the motor to operate the vehicle window to perform lifting movement.

[0020] In addition, according to a fourth aspect of the present application, a vehicle is further provided, wherein the vehicle is equipped with at least one window lift device as described above, and the window lift device is configured to enable the window to perform lifting and lowering movements.

[0021] This application has the advantages of simple structure, easy manufacturing, assembly and low application cost. The use of this electric drive can effectively reduce or eliminate adverse effects such as noise, impact or vibration in existing products, promote the improvement of product quality and reliability, and can bring users a more comfortable use experience and reduce use and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The disclosure of this application will be more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the figures represent similar components, where:

[0023] Figure 1 is a partial structural diagram of an electric drive embodiment according to the present application;

[0024] Figure 2 yes Figure 1 Schematic diagram of a portion of the structure of the electric drive embodiment shown in FIG, wherein other structures are omitted and only the damping component, the friction pad and the second end of the rotating shaft are shown;

[0025] Figure 3 yes Figure 2 A schematic structural diagram of an embodiment of a friction pad of an electric drive shown in FIG;

[0026] Figure 4 is a schematic structural diagram of another embodiment of a friction lining of an electric drive according to the present application;

[0027] Figure 5 Is with Figure 4 FIG. 1 is a schematic structural diagram of a portion of the structure of an electric drive embodiment of a friction pad shown in FIG. 1 , wherein other structures are omitted and only the damping component, the friction pad, and the second end of the rotating shaft are shown;

[0028] Figure 6 is a schematic structural diagram of another embodiment of a friction lining of an electric drive according to the present application;

[0029] Figure 7 yes Figure 6 A front view of an embodiment of a friction lining for an electric drive shown in FIG; and

[0030] Figure 8 Is with Figure 6 The electric drive embodiment of the friction pad shown in FIG is a schematic structural diagram of a portion of the structure on the left side, in which other structures are omitted and only the damping structure, the friction pad and the second end of the rotating shaft are shown. DETAILED DESCRIPTION

[0031] exist Figure 1 The general structure of an electric drive embodiment according to the present application is shown. Figure 2 and Figure 3 More detailed structural and layout details of the damping components, friction pads, and other components in this embodiment are provided in the accompanying figures. This electric actuator can be used to provide power to operate certain devices, apparatuses, or equipment as required by the application. For example, it can be used to raise or lower a vehicle window. The technical solution of this application is described in detail below using this embodiment.

[0032] For the sake of clarity, Figures 1 to 3In the embodiment shown, only the housing 10, motor 11, shaft 12, friction pad 13 and damping component 14 of the electric drive are shown, and other components that may be configured in the electric drive are not discussed. Figure 1 As shown, the above parts can be installed and arranged at appropriate positions inside the housing 10 of the electric drive. The housing 10 can be made of any one or more suitable materials such as aluminum, iron, plastic, etc. as needed, and can have a shape, size and other structures that are adapted to different applications. For example, it can have several split components, and they can be connected together by connectors or connecting structures such as bolts, screws, snaps, concave and convex structures to form a complete housing.

[0033] The rotating shaft 12 is arranged in the housing 10, and one end 121 thereof is connected to the output shaft 111 of the motor 11 so as to be driven to rotate after receiving the output power from the motor 11. On the other hand, the rotating shaft 12 can cooperate with the transmission between other components in the electric drive to eventually output the above-mentioned motor power from the electric drive to the outside as the working power of the electric drive. It should be noted that in actual application, any feasible fixed connection method can be used to fix the one end 121 of the rotating shaft 12 and the output shaft 111 of the motor 11 together, for example, a connector or welding can be used. Of course, in some applications, the output shaft 111 of the motor 11 and the rotating shaft 12 can also be made into one piece. The use of the above-mentioned construction methods is permitted by this application.

[0034] In the electric drive, the other end 122 of the rotating shaft 12 is arranged to contact the friction pad 13. The friction pad 13, in turn, contacts the damping component 14 and, through the latter, indirectly abuts against the inner wall of the housing 10. Specifically, the friction pad 13 has a first side and a second side, with the first side of the friction pad 13 contacting the second end 122 of the rotating shaft 12. The damping component 14 is mounted in a recess 110 of the housing 10. The recess 110 can optionally be configured as a blind hole, for example. A blind hole configuration makes it very convenient to place the damping component 14 within the blind hole, creating a stable and reliable arrangement. Simultaneously, the damping component 14 contacts the second side of the friction pad 13, providing damping in the axial direction of the rotating shaft 12. When installing the damping component 14, as an optional situation, pressure can be applied to the damping component 14 in the axial direction to force it to produce compression deformation after being pressurized. In this way, at least a portion of the damping component 14 can be pressed against the inner wall of the recess 110 in the longitudinal direction perpendicular to the axial direction, thereby forming a longitudinal force in their contact area and prompting the damping component 14 to be more firmly positioned in the current position. This is very beneficial for promoting the damping component 14 to maintain reliable and close contact with the inner wall of the housing 10 located outside the recess 110 for a long time and to play the desired resistance buffering role. The entire damping component 14 can usually be made of an elastic material such as rubber. Compared with the material used for the friction pad 13, the entire damping component 14 can have a lower hardness and can play a good damping and buffering effect.

[0035] Continue to refer Figure 2 and Figure 3 A buffer portion 130 is provided on the portion of the second side of the friction pad 13 that is not in contact with the damping component 14. The buffer portion 130 protrudes axially toward the inner wall of the housing 10 in the rotating shaft 12 and is capable of contacting the inner wall of the housing 10 when the damping component 14 provides damping. This buffer portion 130, located between the friction pad 13 and the inner wall of the housing 10, can reduce axial impact on the rotating shaft 12, effectively reducing or preventing adverse impacts such as impact or vibration on the inner wall of the housing, the friction pad, and other components during rotation. This also eliminates noise issues caused by such impact or vibration, and helps mitigate wear and potential failures. Such noise, impact, component wear, or failures often occur in existing products. The present electric drive can successfully alleviate or overcome these issues.

[0036] Continue to refer Figure 2 and Figure 3, the buffer portion 130 can adopt a spherical structure. Furthermore, the number of the buffer portions 130 is at least three, and the at least three buffer portions 130 are evenly arranged around the center of the friction pad 13 and are made of plastic integrally with the friction pad 13. For ease of manufacturing, the buffer portion 130 can be designed as a single continuous or discontinuous annular structure 133, which is made of rubber material and fixed to the damping component 14 by secondary injection molding, such as Figure 4 and Figure 5 shown.

[0037] In the above embodiment, the electric drive includes a worm gear mechanism, and the rotating shaft 12 may be the worm in the worm gear mechanism. When the worm is driven to rotate by the output shaft 111 of the motor 11, the worm causes the worm wheel 15, which cooperates with the worm, to rotate and output power. As the rotating shaft 12 rotates along with the output shaft 111 of the motor 11, when the rotating shaft 12 contacts the friction pad 13, it can apply axial and / or radial forces to the latter, thereby generating friction between them. The friction pad 13 and the friction force it provides can prevent the rotating shaft 12 and the output shaft 111 from moving in the axial and / or radial directions.

[0038] As an alternative, a limiting structure 135 for preventing rotation is provided on the circumferential outer side of the friction pad 13, and the housing 10 is provided with a matching structure (not shown) for matching with the limiting structure 135, wherein the limiting structure 135 is one of a boss or a groove, and the matching structure is the other of the boss or the groove.

[0039] Figure 6 FIG. 1 shows the structure of another embodiment of the electric drive disclosed in this application. The electric drive includes a housing 10, a motor 11 and a rotating shaft 12. Figure 6 The functions and principles of the housing, motor and rotating shaft of the electric drive in the illustrated embodiment can be referred to the aforementioned embodiments and will not be described in detail here.

[0040] Specifically, the friction pad 13 includes a body 131 and a rod 132. The body 131 has a first side and a second side opposite to each other. The first side of the body 131 contacts the second end 122 of the rotating shaft 12. One end of the rod 132 is fixedly connected to the second side of the body 131 and the rod 132 is movable in the recess 110 of the housing 10 along the axial direction of the rotating shaft 12. As an example, Figures 6 to 8As shown in FIG. 1 , the body 131 and the rod 132 can be integrally formed using a suitable process such as integral injection molding, which not only facilitates and improves manufacturing efficiency but also offers cost advantages. Depending on the application requirements, the body 131 and the rod 132 can have any possible structural configuration and size configuration. For example, in the examples provided, the body 131 and the rod 132 can be configured as a disc or a cylinder, respectively, and the body 131 can be formed as a flange structure located on the rod 132.

[0041] The damping structure 15 is located between the body 131 and the inner wall of the housing 10 and is fixed to a portion of the second side of the body 131 that is not connected to the rod 132 , so as to provide damping in the axial direction of the rotating shaft 12 .

[0042] Continue to refer Figures 6 to 8 At least three protrusions 134 are provided on the second side of the body 131 , and the three protrusions 134 do not extend beyond the damping structure 15 in the axial direction of the rotating shaft 12 , thereby providing rigid support when the damping structure 15 is compressed to a certain extent.

[0043] According to the solution of the present application, a vehicle window lift device is further provided, and a vehicle equipped with the vehicle window lift device is also provided.

[0044] Specifically, the electric actuator designed and provided according to this application can be applied to a window lift device, thereby providing driving force to the operating mechanism in the window lift device. This allows the operating mechanism to utilize the power provided by the electric actuator to operate the window to raise or lower as needed. During this process, with the help of the damping component arrangement as described above, it is possible to effectively reduce or completely eliminate the adverse effects such as impact, noise, and vibration that are common in existing products, thereby making the window lift operation quiet and smooth, and providing a good user experience. The above-mentioned operating mechanism can adopt a variety of feasible methods such as connecting rods and cables. These technical contents are well known to those skilled in the art and are not the focus of this application. Therefore, they are not described in detail in this article.

[0045] It should be understood that a vehicle according to the present application can be equipped with a corresponding number of window lift devices for one or more windows, depending on specific needs. The vehicles of the present application can be of various types, including, but not limited to, gasoline-powered vehicles, pure electric vehicles, hybrid vehicles, and hydrogen-powered vehicles. When installed and used on these various types of vehicles, the window lift devices of the present application can achieve the aforementioned favorable effects and technical advantages, thereby enhancing the vehicle's product competitiveness.

Claims

1. An electric drive, comprising a housing (10), a motor (11), a rotating shaft (12), a friction pad (13) and a damping component (14), wherein the rotating shaft (12) is arranged in the housing (10) and has a first end (121) and a second end (122) opposite to each other, the first end (121) of the rotating shaft (12) being connected to an output shaft (111) of the motor (11) so that the rotating shaft (12) is driven to rotate, the friction pad (13) having a first side and a second side opposite to each other, the first side of the friction pad (13) being in contact with the second end (122) of the rotating shaft (12), the damping component (14) being arranged in a recess (110) of the housing (10) and in contact with the second side of the friction pad (13) to provide damping in the axial direction of the rotating shaft (12), characterized in that A buffer portion (130) is provided on a portion of the second side of the friction pad (13) that is not in contact with the damping component (14). The buffer portion (130) protrudes toward the inner wall of the housing (10) in the axial direction of the rotating shaft (12) and is capable of contacting the inner wall of the housing (10) when the damping component (14) provides damping.

2. The electric drive according to claim 1, characterized in that The buffer portion (130) is a spherical structure.

3. The electric drive according to claim 2, characterized in that The number of the buffer parts (130) is at least three, and the at least three buffer parts (130) are evenly arranged around the center of the friction pad (13) and are made of plastic in one piece with the friction pad (13).

4. The electric drive according to claim 1, characterized in that The buffer portion (130) comprises a single continuous or discontinuous annular structure (133), wherein the annular structure (133) is made of a rubber material and is fixed on the friction pad (13) by means of secondary injection molding.

5. The electric drive according to any one of claims 1 to 4, characterized in that The electric drive comprises a worm gear mechanism, the rotating shaft (12) is a worm in the worm gear mechanism, and after the worm is driven to rotate by the output shaft (111) of the motor (11), the worm causes a worm wheel matched with the worm to rotate and output power outward, wherein the friction pad (13) is capable of bearing the axial force and / or radial force applied to it by the rotating shaft (12); and / or The friction pad (13) is provided with a limiting structure (135) on the circumferential outer side thereof for preventing rotation, and the housing (10) is provided with a matching structure for matching with the limiting structure (135), wherein the limiting structure (135) is one of a boss or a groove, and the matching structure is the other of the boss or the groove.

6. An electric drive, comprising a housing (10), a motor (11) and a rotating shaft (12), wherein the rotating shaft (12) is arranged in the housing (10) and has a first end (121) and a second end (122) opposite to each other, the first end (121) of the rotating shaft (12) being connected to an output shaft (111) of the motor (11) so that the rotating shaft (12) is driven to rotate, characterized in that: The electric drive further comprises: A friction pad (13) comprising: a body (131) having a first side and a second side opposite to each other, the first side of the body (131) being in contact with the second end (122) of the rotating shaft (12); and a rod (132) having one end fixedly connected to the second side of the body (131) and capable of moving in the axial direction of the rotating shaft (12) in the recess (110) of the housing (10); and A damping structure (15) is located between the body (131) and the inner wall of the housing (10), and is fixed to a portion of the second side of the body (131) that is not connected to the rod (132), for providing damping in the axial direction of the rotating shaft (12).

7. The electric drive according to claim 6, characterized in that At least three protrusions (134) are provided on the second side of the body (131), and the three protrusions (134) do not extend beyond the damping structure (15) in the axial direction of the rotating shaft (12).

8. The electric drive according to claim 6 or 7, characterized in that The body (131) and the rod (132) are made of plastic in one piece; and / or A limiting structure (135) for preventing rotation is provided on the circumferential outer side of the friction lining (13), and the limiting structure (135) is a boss or a groove.

9. A vehicle window lifting device, characterized in that: include: The electric drive according to any one of claims 1 to 8; as well as The operating mechanism is arranged between the power output end of the electric drive and the vehicle window, and is used to receive power output from the motor to operate the vehicle window to perform lifting movement.

10. A vehicle, characterized in that: The vehicle is equipped with at least one window lift device according to claim 9, which is configured to cause the vehicle window to perform a lifting movement.

Images