A curtain driving motor

Abstract

The application provides a curtain driving motor, a bearing stop is arranged on a stator positioning base of the driving motor, a bearing is arranged between the bearing stop and a motor shaft, 20 magnetic poles are uniformly distributed in a circumferential direction of an inner wall of a casing, 18 stator windings are arranged in a circumferential direction of a stator framework, and the pole-slot ratio of 18 slots and 20 poles can meet the low-rotating-speed high-torque requirement of the curtain driving. The motor output end is cancelled gear transmission, the operation noise of the direct-drive motor without a gear box is lower, the use requirement of the automatic curtain on the low-noise operation of the motor is met, and the motor has the characteristics of small size, long service life and low cost.

Description

Technical Field

[0001] This application proposes a curtain drive motor, specifically belonging to the field of motor technology. Background Technology

[0002] In the automatic curtain market, the widely used structure of motor plus gearbox, although the motor improves the overall output torque through gear reduction, the noise generated by the meshing of gears during operation does not meet the requirements of low noise in the common use of curtain motors.

[0003] National Patent CN113585949A, entitled "A Backstop Mechanism for an Electric Curtain Motor," includes a motor and a gearbox connected in sequence. The output end of the gearbox is connected to a backstop assembly, which includes a flange, an output shaft, and a backstop block. A receiving cavity is formed within the flange. An output bracket is provided at the output end of the gearbox. This output bracket engages unidirectionally with the output shaft facing the gearbox and is fitted within the receiving cavity. The backstop block is located at the interface between the output bracket and the output shaft. The flange is connected to the gearbox. This invention, through the cooperation of the flange, output shaft, and backstop block, achieves unidirectional transmission with the output bracket of the gearbox, effectively providing a backstop force. This ensures that the curtain can stably stop at the desired position after the motor stops working, preventing damage to the gearbox and motor caused by external forces or gravity. Similar technical solutions exist, but gearbox transmission increases motor noise and has higher manufacturing costs. Utility Model Content

[0004] This application addresses the problem of high operating noise in the aforementioned material motors by proposing a curtain drive motor. Specifically, it includes a housing, magnetic poles, a stator, stator windings, a motor shaft, a stator core, and a stator frame. The housing is disposed on the stator, and multiple magnetic poles are evenly distributed circumferentially on the inner wall of the housing. The stator frame contains stator windings, and the stator core is disposed on the surface of the stator frame. The motor shaft is located at the center of the stator frame. The application is characterized by further including a stator positioning seat with a bearing stop, and a bearing is disposed between the bearing stop and the motor shaft. The inner wall of the housing has 20 magnetic poles evenly distributed circumferentially, and the stator frame has 18 stator windings arranged circumferentially, thus solving the aforementioned technical problems.

[0005] Furthermore, the housing is mounted on the stator, and the magnetic poles use sintered neodymium iron boron with higher magnetic properties.

[0006] Furthermore, several stator cores are provided on the outer circular wall of the stator frame.

[0007] Furthermore, it also has a rear end cover, which is fixed to the outside of the housing and the stator.

[0008] Furthermore, the stator positioning seat and the stator frame are connected by adhesive bonding.

[0009] By setting a bearing stop in the stator positioning seat, a bearing is installed between the bearing stop and the motor shaft; 20 magnetic poles are evenly distributed circumferentially on the inner wall of the housing, and 18 stator windings are arranged circumferentially on the stator frame. The pole-slot ratio of 18 slots and 20 poles can meet the low speed and high torque requirements of the curtain drive. The gear transmission at the motor output end is eliminated. The gearbox-less direct drive motor of this application has lower operating noise, which meets the requirements of automatic curtains for low noise motor operation. This curtain drive motor has the advantages of low speed and high torque, and also has the characteristics of high efficiency, small size, long life and low cost. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of a curtain drive motor according to this application;

[0011] Figure 2 This is a schematic diagram of the assembly of the housing and stator windings of a curtain drive motor according to this application;

[0012] Figure 3 This is a structural diagram of the housing and stator core of a curtain drive motor according to this application;

[0013] Figure 4 This is a structural diagram of the rear end cover of a curtain drive motor according to this application;

[0014] Figure 5 This is a structural diagram of the stator positioning seat of a curtain drive motor according to this application;

[0015] The numerical designations of the components in the above-mentioned attached diagram are as follows:

[0016] Casing 11, Magnetic poles 12;

[0017] Stator 20, stator winding 21, stator frame 22, stator core 23, motor shaft 24;

[0018] Rear end cover 31;

[0019] Stator positioning seat 41, bearing stop 411. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-5 The preferred embodiments of this application are described in detail so that the advantages and features of this application can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of this application. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0021] This utility model provides a curtain drive motor, specifically including components such as a housing 11, magnetic poles 12, a stator 20, a stator winding 21, a stator frame 22, a stator core 23, a motor shaft 24, a rear end cover 31, and a stator positioning seat 41. This curtain drive motor is used to drive the opening and closing of curtains. This application eliminates the gearbox transmission at the output end of traditional curtain drive motors, meeting the low-noise operation requirements of automatic curtains. Installed on a curtain track, this curtain drive motor has the advantages of low speed and high torque, and also features high efficiency, small size, long lifespan, and low cost.

[0022] The aforementioned housing 11 is mounted on the stator 20. Twenty magnetic poles 12 are evenly distributed circumferentially on the inner wall of the housing 11. The magnetic poles 12 are made of sintered neodymium iron boron with higher magnetic properties.

[0023] The curtain drive motor of this application has a stator 20, which includes stator windings 21, a stator frame 22, and a stator core 23. The stator frame 22 contains the stator windings 21, and the stator frame 22 has 18 stator windings 21 arranged circumferentially, that is, the stator frame 22 has 18 slots. The stator core 23 is arranged on the surface of the stator frame 22. The motor shaft 24 of the drive motor is arranged at the center of the stator frame 22 to ensure the operation of the drive motor.

[0024] A bearing stop 411 is provided at the center of the stator frame 22, and a bearing is provided between the bearing stop 411 and the motor shaft 24. The stator positioning seat 41 and the stator frame 22 are glued together.

[0025] In addition, the aforementioned rear end cover 31 is fixed to the outside of the housing 11 and the stator 20.

[0026] Due to the unique operation of curtains, which requires both high and low speeds, the drive motor employs an 18-slot, 20-pole configuration to meet these specific requirements for low-speed, high-torque curtain driving. Furthermore, the 20-pole configuration increases the utilization of the magnetic field, improving the efficiency of the drive motor and ensuring its operational stability.

[0027] The above description is only one of the preferred embodiments of this application and is not intended to limit the present invention, nor does it limit the scope of patent implementation of this application. Any equivalent structural or procedural transformations made using the shape, structure, and principle described in the specification and drawings of this application, or any direct or indirect application in other related technical fields; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention are all included within the scope of patent protection of this application.

Claims

1. A curtain drive motor, specifically comprising a housing (11), magnetic poles (12), a stator (20), stator windings (21), a motor shaft (24), a stator core (23), and a stator frame (22), wherein the housing (11) is disposed on the stator (20), a plurality of magnetic poles (12) are evenly distributed circumferentially on the inner wall of the housing (11), the stator windings (21) are disposed in the stator frame (22), the stator core (23) is disposed on the surface of the stator frame (22), the stator windings (21) are circumferentially disposed on the stator frame (22), and the motor shaft (24) is disposed at the center of the stator frame (22), characterized in that, It also has a stator positioning seat (41), which has a bearing stop (411), and a bearing is provided between the bearing stop (411) and the motor shaft (24); the inner wall of the housing (11) is evenly distributed with 20 magnetic poles (12), and the stator frame (22) is circumferentially provided with 18 stator windings (21).

2. A curtain drive motor according to claim 1, characterized in that, The housing (11) is disposed on the stator (20), and the magnetic poles (12) are made of sintered neodymium iron boron.

3. A curtain drive motor according to claim 1, characterized in that, Several stator cores (23) are provided on the outer circular wall of the stator frame (22).

4. A curtain drive motor according to claim 1, characterized in that, It also has a rear end cover (31) which is fixed to the outside of the housing (11) and the stator (20).

5. A curtain drive motor according to claim 1, characterized in that, The stator positioning seat (41) and the stator frame (22) are connected by adhesive.

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