Seat height adjustment driving actuator

Abstract

The utility model discloses a seat height adjustment driving actuator which comprises a machine shell, an installation groove is formed in the machine shell, a stator is arranged in the machine shell in a clearance fit mode, a rotor suite is installed in the stator, an output part is formed through matching of the rotor suite and the stator, a front end cover is installed on the top of the machine shell in a riveting mode, and a rear end cover is installed on the top of the machine shell in a riveting mode. The stator and the casing are fixed in the axial direction and the circumferential direction, a bearing is arranged on the front end cover, an output shaft in the rotor suite is positioned and matched in the bearing of the front end cover, a plug-in shell is arranged between the front end cover and the casing, a connector assembly is assembled in the plug-in shell, and the connector assembly is matched with the casing at the bottom. Therefore, the casing and the stator are easier to assemble, and parts are more convenient to maintain or replace. The proper gap can increase air flow, thereby facilitating heat dissipation of the motor, improving the working efficiency of the motor, prolonging the service life of the motor, and reducing stress and deformation caused by thermal expansion.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofa height adjustment, and more specifically, particularly relates to a seat height adjustment driving actuator. Background Art

[0002] At present, most of the motor stators and casings on the market are fixed by gluing, shrink fitting and cold pressing.

[0003] The method of using adhesive is only suitable for some occasions where the temperature and vibration requirements are not high; the shrink sleeve method will cause certain damage to the surface treatment layer of the casing; the cold pressing method is used for some small motors and has high requirements on the precision of parts.

[0004] At present, the motors on the market are fixed to the stator and the casing in different ways according to different application scenarios, which is not convenient enough for maintenance or replacement of parts. During operation, the motor is easily subjected to stress and deformation caused by thermal expansion due to the small assembly clearance, which greatly reduces the service life of the motor. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a seat height adjustment drive actuator to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a seat height adjustment drive actuator, including a casing, a mounting groove is provided in the casing, a stator is gap-fitted in the casing, a rotor kit is installed in the stator, an output part is formed by the rotor kit and the stator, a front end cover is installed on the top of the casing by riveting, the output shaft in the rotor kit is positioned and fitted in the bearing of the front end cover, an insert shell is provided between the front end cover and the casing, a connector assembly is assembled in the insert shell, and the connector assembly matches the casing at the bottom.

[0007] As an optional solution of the utility model, the skeleton boss of the stator is clearance-matched with the installation groove.

[0008] As an optional solution of the present invention, a positioning hole is provided on the plug-in housing for positioning the output shaft in the rotor kit.

[0009] As an optional solution of the present invention, the connector assembly is an assembly composed of multiple electronic components and cables, and is used to connect interfaces of two electronic devices.

[0010] The utility model provides a seat height adjustment drive actuator, which has the following beneficial effects:

[0011] The stator and the housing are fixed axially and circumferentially through the design of the product structure. The design achieves circumferential fixation through the clearance between the stator and the housing, and the stator frame boss and the mounting groove of the housing. The axial positioning is achieved through the mounting groove of the housing, the stator frame boss, the connector assembly boss, the positioning hole of the plug-in housing and the front cover. This makes it easier to assemble the housing and the stator, and it is also more convenient to maintain or replace parts. Appropriate clearance can increase air flow, help dissipate heat from the motor, and improve the working efficiency and life of the motor. When the motor is running, the components will generate heat and expand. Appropriate clearance can provide a certain space for thermal expansion and reduce the stress and deformation caused by thermal expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1. housing; 2. stator; 3. connector assembly; 4. plug-in housing; 5. front end cover. DETAILED DESCRIPTION

[0014] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1The utility model provides a technical solution: a seat height adjustment drive actuator, including a casing 1, a mounting groove is provided in the casing 1, a stator 2 is gap-fitted in the casing 1, a skeleton boss of the stator 2 is gap-fitted with the mounting groove, a rotor kit is installed in the stator 2, an output part is formed by the rotor kit and the stator 2, a front end cover 5 is installed on the top of the casing 1 by riveting, and the output shaft in the rotor kit is positioned and fitted in the bearing of the front end cover 5.

[0018] A plug-in shell 4 is arranged between the front end cover 5 and the casing 1. The plug-in shell 4 is provided with a positioning hole for positioning the output shaft in the rotor kit. A connector assembly 3 is assembled in the plug-in shell 4, and the connector assembly 3 matches the casing 1 at the bottom.

[0019] The connector assembly 3 is composed of a plurality of electronic components and cables, and is used to connect the interfaces of two electronic devices and transmit signals and power between different electronic devices. A positioning boss is provided on one side of the connector assembly 3, and is clearance-matched with the output shaft of the rotor assembly for further positioning, thereby realizing the bearing positioning of the stator 2 and the rotor assembly, and achieving higher driving stability.

[0020] The specific usage and function of this embodiment are as follows: first, the stator 2 is placed into the casing 1, and then the stator 2 is rotated to make the skeleton boss of the stator 2 fit with the installation groove in the casing 1 to achieve circumferential fixation, and then the connector assembly 3 is installed on the casing 1, and the output shaft of the rotor kit is passed through the positioning hole to achieve rapid assembly of the plug-in shell 4, which cooperates with the connector assembly 3 and the casing 1, and finally the front end cover 5 is installed and the casing 1 is riveted to achieve axial fixation.

[0021] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A seat height adjustment actuator, characterized in that: The invention comprises a casing (1), wherein a mounting groove is arranged in the casing (1), a stator (2) is gap-fitted in the casing (1), a rotor kit is installed in the stator (2), and an output part is formed by the rotor kit and the stator (2) being matched, a front end cover (5) is installed on the top of the casing (1) by riveting, and the output shaft in the rotor kit is positioned and matched in the bearing of the front end cover (5), and an insert shell (4) is arranged between the front end cover (5) and the casing (1), and a connector assembly (3) is assembled in the insert shell (4), and the connector assembly (3) matches the casing (1) at the bottom.

2. A seat height adjustment actuator according to claim 1, characterized in that: The frame boss of the stator (2) is loosely matched with the mounting groove.

3. The seat height adjustment actuator according to claim 1, characterized in that: The plug-in housing (4) is provided with a positioning hole for positioning the output shaft in the rotor kit.

4. The seat height adjustment actuator according to claim 1, characterized in that: The connector assembly (3) is an assembly consisting of a plurality of electronic components and cables, and is used to connect interfaces of two electronic devices.

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