Ultrathin motor structure

By setting a mounting platform on the rotor and incorporating a bearing housing, the problem of excessive axial thickness in traditional motor structures is solved, enabling the design of an ultra-thin motor.

CN224204828UActive Publication Date: 2026-05-05ZHONGSHAN HUAZUN MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN HUAZUN MOTOR CO LTD
Filing Date
2025-04-11
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The assembly of the rotor, stator, and support in traditional motor structures leads to an increase in the axial thickness of the motor, making it difficult to meet the requirements of ultra-thin equipment.

Method used

An mounting platform is set on the rotor, and a first mounting groove is opened on the mounting platform to house the bearing housing. The stator is fixed by the connecting bracket and locking parts on the mounting frame, thereby realizing the internal installation of the bearing housing and reducing the axial thickness of the motor.

Benefits of technology

The design with built-in bearing housing reduces the axial thickness of the motor, meeting the size requirements of ultra-thin devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ultra-thin motor structure which comprises a mounting frame, a stator is mounted on the mounting frame, a rotor is movably assembled on the stator, a bearing is connected to the end of the rotor, a bearing seat for mounting the bearing is arranged on the mounting frame, a mounting table is mounted on the rotor, and the mounting table is connected with a motor. A first mounting groove is formed in the mounting table in an inward concave manner; and when the mounting rack is assembled on the stator, the bearing seat can be mounted in the first mounting groove in a built-in manner. According to the ultra-thin motor structure, the axial thickness of the motor can be reduced to form an ultra-thin state, the rotor is provided with the mounting table, the mounting table is provided with the first mounting groove for internally mounting the bearing seat, and after the motor is assembled, the bearing seat is internally mounted in the first mounting groove, so that the axial thickness of the motor is reduced, and the axial thickness of the motor is reduced. The overall size is reduced, and the requirements of some machines for ultrathin motors can be met.
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Description

Technical Field

[0001] This utility model particularly relates to an ultra-thin motor structure. Background Technology

[0002] Traditional motor structures consist of two supports with a stator positioned between them. A rotor is mounted on the stator, and bearings are connected to the ends of the rotor to ensure stable rotation. Bearing housings are provided on the supports for the bearings. This design, with its rotor, bearings, bearing housings, and supports, results in an increased axial thickness of the motor. Therefore, traditional motors are unsuitable for devices requiring ultra-thin motors (such as folding devices, micro-robots, and ultra-thin cooling fans). Optimizing the rotor, stator, and support structure to reduce the axial dimension of the motor is a pressing issue. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an ultra-thin motor structure.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] An ultra-thin motor structure includes a mounting bracket, on which a stator is mounted, and on which a rotor is movably mounted, with a bearing connected to the end of the rotor. The mounting bracket has a bearing seat for mounting the bearing, and a mounting platform is mounted on the rotor. The mounting platform has a first mounting groove recessed inward, and when the mounting bracket is mounted on the stator, the bearing seat can be internally installed in the first mounting groove.

[0006] Preferably, the mounting bracket includes a first connecting bracket and a second connecting bracket respectively connected to both sides of the stator, and the first connecting bracket and the second connecting bracket are fixed to the stator by locking members.

[0007] Preferably, the bearing housing is mounted on the side of the first connecting bracket facing the rotor, and the second connecting bracket has a through hole for the rotor to pass through.

[0008] Preferably, the mounting platform has a second mounting groove on the side opposite to the first mounting groove, and the second connecting bracket has a positioning ring on the side facing the rotor. When the second connecting bracket is assembled on the stator, the positioning ring is confined within the second mounting groove.

[0009] Preferably, the mounting platform is a cylindrical structure.

[0010] Preferably, the locking element is a bolt.

[0011] Preferably, the rotor and the mounting platform are integrally formed.

[0012] The beneficial effects of this utility model are:

[0013] The ultra-thin motor structure of this application can reduce the axial thickness of the motor to achieve an ultra-thin state. This application has a mounting platform on the rotor, and a first mounting groove for the bearing housing to be installed inside the mounting platform. Thus, after the motor is assembled, the bearing housing is installed inside the first mounting groove, thereby reducing the axial thickness of the motor and reducing the overall volume, which can meet the requirements of some machines for ultra-thin motors. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of an ultra-thin motor structure according to this application. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of an ultra-thin motor structure according to this application. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of an ultra-thin motor structure according to this application. Figure 3 ;

[0018] Figure 4 This is a schematic diagram of an ultra-thin motor structure according to this application. Figure 4 ;

[0019] Figure 5 This is a schematic diagram of an ultra-thin motor structure according to this application. Figure 5 . Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0021] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0022] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0023] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0024] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0025] An ultra-thin motor structure, referenced Figures 1-5 The device includes a mounting bracket on which a stator 1 is mounted. A rotor 2 is movably mounted on the stator 1. A bearing is connected to the end of the rotor 2. A bearing seat 3 for mounting the bearing is provided on the mounting bracket. A mounting platform 4 is mounted on the rotor 2. The mounting platform 4 is recessed inward and has a first mounting groove 41. When the mounting bracket is mounted on the stator 1, the bearing seat 3 can be installed inside the first mounting groove 41.

[0026] Furthermore, the mounting bracket includes a first connecting bracket 51 and a second connecting bracket 52 respectively connected to both sides of the stator 1, and the first connecting bracket 51 and the second connecting bracket 52 are fixed to the stator 1 by a locking member 6.

[0027] Furthermore, the bearing seat 3 is installed on the side of the first connecting bracket 51 facing the rotor 2, and the second connecting bracket 52 has a through hole 521 for the rotor 2 to pass through.

[0028] Furthermore, the mounting platform 4 has a second mounting groove 42 on the side opposite to the first mounting groove 41, and the second connecting bracket 52 has a positioning ring 522 on the side facing the rotor 2. When the second connecting bracket 52 is assembled on the stator 1, the positioning ring 522 is confined within the second mounting groove 42.

[0029] Furthermore, the mounting platform 4 is a cylindrical structure.

[0030] Furthermore, the locking element 6 is a bolt.

[0031] Furthermore, the rotor 2 and the mounting platform 4 are integrally formed.

[0032] The working principle of this utility model is as follows:

[0033] As an example of embodiment 1, the mounting platform 4 of this application is illustrated using a cylindrical structure. The mounting frame is assembled with a first connecting bracket 51 and a second connecting bracket 52. A stator 1 is positioned between the first connecting bracket 51 and the second connecting bracket 52. The first connecting bracket 51 and the second connecting bracket 52 are connected to the stator 1 via locking members 6. A rotor 2 is movably mounted on the stator 1, and the mounting platform 4 is connected to the rotor 2. A first mounting groove 41 and a second mounting groove 42 are respectively opened on both sides of the mounting platform 4. A bearing (not shown in the drawings) is connected to the end of the rotor 2. A bearing seat 3 for mounting the bearing is provided on the first connecting bracket 51. When the first connecting bracket 51 is connected to the stator 1 via the locking members 6, the bearing seat 3 is housed within the first mounting groove 41 of the mounting platform 4. This design reduces the axial thickness of the motor, reducing the distance between the first connecting bracket 51 and the second connecting bracket 52 by as much as 7-10 mm, resulting in a novel ultra-thin motor. In this technical solution, it is preferable to integrally form the mounting platform 4 and the rotor 2.

[0034] Based on the above technical solution, this application provides a through hole 521 on the second connecting bracket 52 for the end of the rotor 2 to pass through. In order to facilitate the installation of the second connecting bracket 52 on the stator 1, this application provides a positioning ring 522 on the second connecting bracket 52. A second mounting groove 42 is provided on the side of the mounting platform 4 facing the second connecting bracket 52. When the second connecting bracket 52 is connected to the stator 1, the positioning ring 522 is limited in the second mounting groove 42. With this design, the positioning and installation of the second connecting bracket 52 on the stator 1 can be quickly achieved. The locking member 6 can be implemented with bolts. After the first connecting bracket 51 and the second connecting bracket 52 are positioned on the stator 1, they can be locked with bolts.

[0035] The ultra-thin motor structure of this application can reduce the axial thickness of the motor to achieve an ultra-thin state. This application provides a mounting platform 4 on the rotor 2, and a first mounting groove 41 for the bearing housing 3 to be installed on the mounting platform 4. Thus, after the motor is assembled, the bearing housing 3 is installed in the first mounting groove 41, thereby reducing the axial thickness of the motor and reducing the overall volume, which can meet the requirements of some machines for ultra-thin motors.

[0036] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. An ultra-thin motor structure, characterized in that, The device includes a mounting bracket on which a stator (1) is mounted. A rotor (2) is movably mounted on the stator (1). A bearing is connected to the end of the rotor (2). A bearing seat (3) for mounting the bearing is provided on the mounting bracket. A mounting platform (4) is mounted on the rotor (2). A first mounting groove (41) is recessed inward on the mounting platform (4). When the mounting bracket is mounted on the stator (1), the bearing seat (3) can be installed inside the first mounting groove (41).

2. The ultra-thin motor structure according to claim 1, characterized in that, The mounting bracket includes a first connecting bracket (51) and a second connecting bracket (52) respectively connected to both sides of the stator (1). The first connecting bracket (51) and the second connecting bracket (52) are fixed to the stator (1) by locking member (6).

3. The ultra-thin motor structure according to claim 2, characterized in that, The bearing housing (3) is installed on the side of the first connecting bracket (51) facing the rotor (2), and the second connecting bracket (52) has a through hole (521) for the rotor (2) to pass through.

4. The ultra-thin motor structure according to claim 2, characterized in that, The mounting platform (4) has a second mounting groove (42) on the side away from the first mounting groove (41). The second connecting bracket (52) has a positioning ring (522) on the side facing the rotor (2). When the second connecting bracket (52) is assembled on the stator (1), the positioning ring (522) is limited to the second mounting groove (42).

5. The ultra-thin motor structure according to claim 1, characterized in that, The mounting platform (4) is a cylindrical structure.

6. The ultra-thin motor structure according to claim 2, characterized in that, The locking element (6) is a bolt.

7. The ultra-thin motor structure according to claim 1, characterized in that, The rotor (2) and the mounting platform (4) are integrally formed.