Waterproof micro motor with good sealing performance

Abstract

The utility model discloses a waterproof micro motor with good sealing performance, which relates to the field of motors, and comprises a micro motor main body, one end of the micro motor main body is provided with an installation connecting ring, and the installation connecting ring is provided with a sealing structure. The outer side of the motor output shaft is sleeved with the sealing structure, and the sealing structure is installed on the installation connecting ring, so that the waterproof performance of the micro motor main body can be improved, water is not liable to enter a gap between the micro motor main body and the motor output shaft, the micro motor is not liable to damage, and the service life of the micro motor is prolonged. When water enters the sealing shell through the gap between the sealing rubber ring and the motor output shaft, the water absorbing sponge can absorb the water entering the sealing shell, so that the water entering the sealing shell is not easy to continuously enter the micro motor main body through the gap between the micro motor main body and the motor output shaft.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a waterproof micro motor with good sealing performance. Background Art

[0002] A micro motor is a type of electric motor with a small volume and capacity, and an output power generally below hundreds of watts. It is often used in control systems or transmission mechanical loads to realize functions such as detection, analytical calculation, amplification, execution or conversion of electromechanical signals or energy. A waterproof micro motor is a micro motor with a waterproof function. This motor usually adopts a special sealing design to prevent moisture, dust, etc. from entering the inside of the motor, thereby ensuring the normal operation and service life of the motor. The application of waterproof micro motors is relatively wide. When it is used in a massager, it can play a role of power output in the massager. In the existing patent application with application number CN201620998735.2, a waterproof micro motor is proposed. Although it can play a role of sealing and waterproofing through the setting of the first O-ring between the end cover and the motor housing, and the setting of the waterproof sealing ring on the bearing, and the tight fit connection form a waterproof structure between the end cover and the motor housing, it is only waterproofed through the sealing ring, resulting in poor waterproof effect, and then the inside of the motor is still easy to get water, and finally it is easy to cause damage to the motor, so a waterproof micro motor with good sealing is needed. Utility Model Content

[0003] The main purpose of the utility model is to provide a waterproof micro motor with good sealing performance, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A waterproof micro motor with good sealing performance comprises a micro motor body, one end of which is provided with a mounting connection ring, a sealing structure is installed on the mounting connection ring, the sealing structure is composed of a sealing shell, a sealing rubber ring and a water-absorbing sponge, and the sealing rubber ring and the water-absorbing sponge are both installed in the sealing shell.

[0006] Preferably, a motor output shaft is mounted on the micro motor body.

[0007] Preferably, the mounting connection ring is an annular structure, a thread is provided on the outer wall of the mounting connection ring, the mounting connection ring is fixedly connected to the micro motor body, and the mounting connection ring is simultaneously sleeved on the motor output shaft.

[0008] Preferably, a set through hole is provided at the upper end of the sealing shell on the sealing structure, and the set through hole penetrates the sealing shell from top to bottom. An internal thread is provided on the lower inner wall of the sealing shell. The sealing shell is sleeved on the motor output shaft through the set through hole provided thereon, and the sealing shell is installed on the mounting connecting ring through the internal thread.

[0009] Preferably, the sealing rubber ring on the sealing structure is fixedly mounted on the inner wall of the sleeve through hole, and the sealing rubber ring is sleeved on the output shaft of the motor at the same time.

[0010] Preferably, the water-absorbing sponge on the sealing structure is an annular structure, the water-absorbing sponge is fixedly mounted on the inner wall of the sealing shell, and the water-absorbing sponge is also sleeved on the motor output shaft, an annular groove is provided at the lower end of the water-absorbing sponge, and the annular groove is also provided on the outer wall of the water-absorbing sponge.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By arranging an installation connection ring at one end of the micro motor body, sleeved with a sealing structure on the outer side of the motor output shaft, and installing the sealing structure on the installation connection ring, the waterproof performance of the micro motor body can be improved, so that water is not easy to enter the gap between the micro motor body and the motor output shaft, and thus the micro motor is not easy to be damaged. When water enters the sealed shell through the gap between the sealing rubber ring and the motor output shaft, the water-absorbing sponge can absorb the water entering the sealed shell, so that the water entering the sealed shell is not easy to continue to enter the micro motor body through the gap between the micro motor body and the motor output shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the sealing structure of the utility model;

[0015] Figure 3 For the utility model Figure 2 A magnified view of point A;

[0016] Figure 4 This is a disassembled diagram of the sealing structure of the utility model.

[0017] In the figure: 1. Micro motor body; 2. Mounting connecting ring; 3. Sealing structure; 4. Motor output shaft; 5. Sealing housing; 6. Sealing rubber ring; 7. Water-absorbing sponge; 8. Set through hole; 9. Internal thread; 10. Annular groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a waterproof micro motor with good sealing performance comprises a micro motor body 1, a motor output shaft 4 is installed on the micro motor body 1, a mounting connection ring 2 is installed at one end of the micro motor body 1, the mounting connection ring 2 is an annular structure, a thread is arranged on the outer wall of the mounting connection ring 2, the mounting connection ring 2 is fixedly connected to the micro motor body 1, and the mounting connection ring 2 is simultaneously sleeved on the motor output shaft 4, a sealing structure 3 is installed on the mounting connection ring 2, the sealing structure 3 is composed of a sealing shell 5, a sealing rubber ring 6 and a water-absorbing sponge 7, the sealing rubber ring 6 and the water-absorbing sponge 7 are both installed in the sealing shell 5, a set through hole 8 is opened at the upper end of the sealing shell 5 on the sealing structure 3, the set through hole 8 penetrates the sealing shell 5 up and down, an internal thread 9 is arranged on the lower inner wall of the sealing shell 5, the sealing shell 5 is sleeved on the motor output shaft 4 through the set through hole 8 opened thereon, the sealing shell 5 is installed on the mounting connection ring 2 through the internal thread 9, the sealing rubber ring 6 on the sealing structure 3 is fixedly installed on the inner wall of the set through hole 8, The sealing rubber ring 6 is also sleeved on the motor output shaft 4. The water-absorbing sponge 7 on the sealing structure 3 is an annular structure. The water-absorbing sponge 7 is fixedly mounted on the inner wall of the sealing shell 5, and the water-absorbing sponge 7 is also sleeved on the motor output shaft 4. An annular groove 10 is provided at the lower end of the water-absorbing sponge 7, and the annular groove 10 is also provided on the outer wall of the water-absorbing sponge 7. By arranging a mounting connecting ring 2 at one end of the micro-motor body 1, sleeved on the outer side of the motor output shaft 4, and mounting the sealing structure 3 on the mounting connecting ring 2, the waterproof performance of the micro-motor body 1 can be improved, so that the gap between the micro-motor body 1 and the motor output shaft 4 is not easy to enter water, and thus the micro-motor is not easy to be damaged. When water enters the sealing shell 5 through the gap between the sealing rubber ring 6 and the motor output shaft 4, the water-absorbing sponge 7 can absorb the water entering the sealing shell 5, so that the water entering the sealing shell 5 is not easy to continue to enter the micro-motor body 1 through the gap between the micro-motor body 1 and the motor output shaft 4.

[0020] It should be noted that the utility model is a waterproof micro motor with good sealing performance. When in use, the installation connecting ring 2 and the sealing structure 3 can block external water. When external water accidentally enters the sealing shell 5 through the gap between the motor output shaft 4 and the sealing rubber ring 6, the water-absorbing sponge 7 can absorb the water entering the sealing shell 5, so that the water entering the sealing shell 5 is not easy to continue to enter the micro motor body 1 through the gap between the micro motor body 1 and the motor output shaft 4, thereby reducing the probability of water ingress and damage to the micro motor body 1.

[0021] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A waterproof micro motor with good sealing performance, comprising a micro motor body (1), characterized in that: A mounting connection ring (2) is installed at one end of the micro-motor body (1); a sealing structure (3) is installed on the mounting connection ring (2); the sealing structure (3) is composed of a sealing shell (5), a sealing rubber ring (6) and a water-absorbing sponge (7); and the sealing rubber ring (6) and the water-absorbing sponge (7) are both installed in the sealing shell (5).

2. A waterproof micro motor with good sealing performance according to claim 1, characterized in that: A motor output shaft (4) is mounted on the micro motor body (1).

3. A waterproof micro motor with good sealing performance according to claim 2, characterized in that: The mounting connection ring (2) is an annular structure, a thread is provided on the outer wall of the mounting connection ring (2), the mounting connection ring (2) is fixedly connected to the micro motor body (1), and the mounting connection ring (2) is also sleeved on the motor output shaft (4).

4. A waterproof micro motor with good sealing performance according to claim 3, characterized in that: A sleeve through hole (8) is provided at the upper end of the sealing shell (5) on the sealing structure (3), and the sleeve through hole (8) passes through the sealing shell (5) from top to bottom. An internal thread (9) is provided on the lower inner wall of the sealing shell (5). The sealing shell (5) is sleeved on the motor output shaft (4) through the sleeve through hole (8) provided thereon, and the sealing shell (5) is mounted on the mounting connection ring (2) through the internal thread (9).

5. A waterproof micro motor with good sealing performance according to claim 4, characterized in that: The sealing rubber ring (6) on the sealing structure (3) is fixedly mounted on the inner wall of the sleeve through hole (8), and the sealing rubber ring (6) is also sleeved on the motor output shaft (4).

6. A waterproof micro motor with good sealing performance according to claim 5, characterized in that: The water-absorbing sponge (7) on the sealing structure (3) is an annular structure. The water-absorbing sponge (7) is fixedly mounted on the inner wall of the sealing shell (5), and the water-absorbing sponge (7) is also sleeved on the motor output shaft (4). An annular groove (10) is provided at the lower end of the water-absorbing sponge (7), and the annular groove (10) is also provided on the outer wall of the water-absorbing sponge (7).

Images