Elastic sound wave motor

Abstract

The utility model relates to the technical field of motors, in particular to an elastic sound wave motor, which comprises a shell, a mover assembly arranged in the shell, a stator assembly, an output shaft and a rear cover, one end of the output shaft is connected with the mover assembly, the other end of the output shaft extends out of the shell, the rear cover is connected to the other end of the shell, and an elastic sheet is connected between the rear cover and the mover assembly. The utility model aims to provide the elastic sound wave motor which is low in noise, low in amplitude and better in use experience when in use.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to an elastic acoustic wave motor. Background Technology

[0002] With the increasing popularity of electric toothbrushes and their growing market share, manufacturers need to consider how to reduce production costs to meet the diverse needs of consumers. The main cost of electric toothbrushes lies in the motor drive structure. Existing electric toothbrushes have complex drive structures that produce significant noise and amplitude vibrations, affecting user comfort. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an elastic acoustic motor that has low noise and low amplitude during use, resulting in a better user experience.

[0004] This utility model is achieved through the following technical solution:

[0005] An elastic acoustic motor includes a housing, a mover assembly disposed on the housing, a stator assembly, an output shaft with one end connected to the mover assembly and the other end protruding from the housing, and a rear cover connected to the other end of the housing, wherein a spring is connected between the rear cover and the mover assembly.

[0006] The mover assembly includes a mover body, several magnets installed inside the mover body, and a magnetic conductive sheet embedded in the mover body; the output shaft and the spring are respectively connected to the two ends of the mover body.

[0007] The back cover has a hollow structure.

[0008] The other end of the output shaft is connected to the housing by a bearing.

[0009] The bearing in question is a double outer ring tapered roller bearing.

[0010] The length of the housing is less than the length of the stator assembly, and a connecting strip connects the housing and the rear cover.

[0011] The beneficial effects of this utility model are:

[0012] This utility model discloses an elastic acoustic motor, in which the stator assembly is energized to drive the mover assembly to vibrate. At the same time, the excess kinetic energy of the mover assembly during vibration can be canceled out by the spring, effectively reducing the noise and amplitude of the motor during operation and improving the comfort of using the electric toothbrush. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure Labels

[0017] Housing -- 100, Rear cover -- 101, Bearing -- 102, Output shaft -- 103, Spring -- 104, Connecting bar -- 105

[0018] Mover assembly--200, mover body--201, magnet--202, magnetic conductor sheet--203, stator assembly--204. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] With the increasing popularity of electric toothbrushes and their growing market share, manufacturers need to consider how to reduce production costs to meet the diverse needs of consumers. The main cost of electric toothbrushes lies in the motor drive structure. Existing electric toothbrushes have complex drive structures that produce significant noise and amplitude vibrations, affecting user comfort.

[0023] To address the aforementioned problems, this embodiment discloses an elastic acoustic wave motor, the structure of which is as follows: Figures 1 to 2 As shown, the motor includes a housing 100, a mover assembly 200 disposed on the housing 100, a stator assembly 204, an output shaft 103 with one end connected to the mover assembly 200 and the other end protruding from the housing 100, and a rear cover 101 connected to the other end of the housing 100. A spring piece 104 is connected between the rear cover 101 and the mover assembly 200.

[0024] Specifically, the present invention provides an elastic acoustic motor in which the stator assembly 204 is energized to drive the mover assembly 200 to vibrate. At the same time, the excess kinetic energy of the mover assembly 200 during vibration can be canceled by the spring piece 104, effectively reducing the noise and amplitude of the motor during operation and improving the comfort of using the electric toothbrush.

[0025] Specifically, the mover assembly 200 includes a mover body 201, a plurality of magnets 202 installed within the mover body 201, and a magnetically conductive sheet 203 embedded in the mover body 201; the output shaft 103 and the spring sheet 104 are respectively connected to both ends of the mover body 201. In this embodiment, the magnetic field range of the magnets 202 within the mover body 201 can be increased by the magnetically conductive sheet 203; in addition, a bearing 102 is connected between the other end of the output shaft 103 and the housing 100, which is preferably a double outer ring tapered roller bearing, to improve the strength and stability of the motor during vibration.

[0026] Additionally, the length of the housing 100 is less than the length of the stator assembly 204, and a connecting strip 105 connects the housing 100 and the rear cover 101. The rear cover 101 has a hollow structure. Figure 1 As can be seen, the motor in this embodiment has a non-enclosed structure, which can effectively improve the heat dissipation and buffering effect of the motor, further reduce the noise and amplitude of the motor during operation, and improve the comfort of using the electric toothbrush.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A flexible acoustic wave motor, characterized in that, include: The housing, a mover assembly disposed on the housing, a stator assembly, an output shaft with one end connected to the mover assembly and the other end protruding from the housing, and a rear cover connected to the other end of the housing, wherein a spring is connected between the rear cover and the mover assembly.

2. The elastic acoustic wave motor according to claim 1, characterized in that, The mover assembly includes a mover body, a plurality of magnets installed inside the mover body, and a magnetic conductive sheet embedded in the mover body; The output shaft and the spring are respectively connected to both ends of the moving body.

3. The elastic acoustic wave motor according to claim 1, characterized in that, The back cover has a hollow structure.

4. The elastic acoustic wave motor according to claim 1, characterized in that, A bearing is connected between the other end of the output shaft and the housing.

5. The elastic acoustic wave motor according to claim 4, characterized in that, The bearing is a double outer ring tapered roller bearing.

6. The elastic acoustic wave motor according to claim 1, characterized in that, The length of the housing is less than the length of the stator assembly, and a connecting strip connects the housing and the rear cover.

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