Micro motor

By designing a protective sleeve and waterproof structure on the micro motor, and using soft rubber teeth and O-rings to enhance the sealing performance, combined with a polyurethane coating, the sealing and waterproofing problems of the micro motor are solved, achieving efficient waterproofing and moisture protection for the motor, extending its service life, and improving safety and ease of maintenance.

CN223912345UActive Publication Date: 2026-02-13SHENZHEN LISHENG ELECTRIC CO LTD
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Patent Information

Application Number
CN202422062995.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2026-02-13
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

Existing micro motors have poor sealing and waterproof/moisture-proof properties, and their fixed structure is not easy to disassemble and assemble, which affects motor performance and service life.

Method used

It adopts a protective cylinder and waterproof structure design. The protective cylinder has first teeth at both ends, and the front cover and rear cover have second and third teeth. The teeth are made of soft rubber and pass through the O-ring on the surface of the front cover. Combined with the polyurethane coating, it can improve the sealing and waterproof performance, and facilitate quick installation and disassembly.

Benefits of technology

It improves the waterproofness and sealing of the micro motor, extends its service life, ensures the motor works normally in harsh environments, protects the internal circuitry, enhances safety and performance stability, and facilitates maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a micro motor, which comprises a protective cylinder and a waterproof structure, the protective cylinder is of an integrally formed structure, and first insections are axially distributed at openings at two ends of the protective cylinder; the waterproof structure comprises a front cover and a rear cover, second insections and third insections are axially arranged on the periphery of the front cover and the periphery of the rear cover respectively, and the second insections and the third insections are made of soft rubber. When the two ends of the protective cylinder are connected with the front cover and the rear cover respectively, the first insection is connected with the second insection and the third insection in a matched mode. According to the waterproof structure of the micro motor, through the second insection of the front cover and the third insection of the rear cover, the waterproof performance and the overall sealing performance of the protective cylinder are improved, the maintenance and overhaul are convenient, the disassembly and the assembly are convenient, meanwhile, the protective cylinder and the waterproof structure can be integrally recycled, and the waterproof structure is suitable for various micro motors.
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Description

TECHNICAL FIELD

[0001] The utility model relates to micro motor technical field, in particular to a micro motor. BACKGROUND

[0002] Micro motor, full name "micro motor", refers to the diameter less than 160mm or rated power less than 750mW motor, micro motor is often used in control system or transmission mechanical load, is used to realize electromechanical signal or energy detection, analytical operation, amplification, execution or conversion function.

[0003] Micro motor is often used in control system or transmission mechanical load, is used to realize electromechanical signal or energy detection, analytical operation, amplification, execution or conversion function. Its wide application is in office automation equipment, computer external equipment and industrial automation equipment field, such as disk drive, copying machine, numerical control machine tool, robot etc. have applied micro motor, when using, micro motor is easy to be corroded after water, causes micro motor damage.

[0004] In combination with the above, the prior art micro motor has poor sealing, poor waterproof and moisture resistance, and it is a fixed structure, which is not convenient to disassemble and assemble, and affects the performance of the motor. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model is provided to overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above problems, the utility model discloses a micro motor, which comprises a protective cylinder and a waterproof structure, the protective cylinder is an integral forming structure, and the first tooth pattern is axially distributed at both ends of the protective cylinder; the waterproof structure comprises a front cover and a rear cover, the periphery of the front cover and the rear cover is respectively provided with a second tooth pattern and a third tooth pattern in the axial direction, the second tooth pattern and the third tooth pattern are made of soft glue; when the two ends of the protective cylinder are connected with the front cover and the rear cover respectively, the first tooth pattern is connected with the second tooth pattern and the third tooth pattern in a matched manner.

[0007] Further, the protective cylinder is internally provided with a motor body.

[0008] Further, the second tooth pattern and the third tooth pattern are made of silica gel, the second tooth pattern and the front cover are integrally arranged, and the third tooth pattern and the rear cover are integrally arranged.

[0009] Further, it further comprises a through O-shaped ring, and the through O-shaped ring is arranged on the surface of the front cover and the inside of the second tooth pattern.

[0010] Further, the output end of the motor body output shaft passes through the surface of the front cover and extends to the front side of the front cover through the through O-shaped ring.

[0011] Further, the protective cylinder surface is provided with a polyurethane coating.

[0012] The utility model discloses the following advantages: through setting up waterproof structure, waterproof structure includes the front cover and second tooth pattern with rear cover and third tooth pattern of integrative setting, and the through O -ring is set up in the inside of the front cover surface and second tooth pattern, not only improved the waterproof property of protective cylinder, strengthened the overall leakproofness again, to play the efficient waterproof effect, when using, can conveniently and quickly install waterproof structure on the micromotor main body, also can quickly disassemble it to facilitate maintenance, and the protective cylinder and waterproof structure overall can be recycled, be applicable to a variety of micromotor. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment needed to use the drawing briefly introduces, should understand, the following drawing only shows some embodiment of the utility model, therefore should not be regarded as the limited scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0014] Figure 1 It is a main structure schematic diagram of a micromotor provided in an embodiment of the utility model;

[0015] Figure 2 It is a sectional view structure schematic diagram of a micromotor provided in an embodiment of the utility model;

[0016] Figure 3 It is a structure schematic diagram of a micromotor provided in an embodiment of the utility model.

[0017] In the drawing: 100, protective cylinder;101, first tooth pattern;200, front cover;201, through O -ring;202, second tooth pattern;300, rear cover;301, third tooth pattern;400, output shaft. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the following will be to the technical scheme in the utility model embodiment, clear, complete description to the utility model embodiment in the embodiment of the utility model, obviously, the described embodiment is the part of the embodiment of the utility model, instead of all the embodiment;Usually the component of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0019] Embodiment 1

[0020] Some embodiments of the present application will be described in detail with reference to the drawings. In the case of no conflict, each embodiment described below and each feature in the embodiments can be combined with each other.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 3 The utility model discloses a micro motor, including protection cylinder 100 and waterproof structure, protection cylinder 100 is the structure of one body, and the first tooth thread 101 is distributed in the both ends opening axial of protection cylinder 100;The waterproof structure includes front cover 200 and back cover 300, and the periphery axial of front cover 200 and back cover 300 is equipped with second tooth thread 202 and third tooth thread 301 respectively, and second tooth thread 202 and third tooth thread 301 are made of soft glue;When the both ends of protection cylinder 100 are connected with front cover 100 and back cover 200 respectively, first tooth thread 101 is connected with second tooth thread 202 and third tooth thread 301 adaptively.

[0022] It should be noted that the reasons for waterproofing micro-motors include the following points: 1. Adapt to harsh environments: Micro-motors may be exposed to humid, rainy, and other harsh environments when used outdoors. Waterproof design can ensure that the micro-motor can still work normally in these environments. 2. Improve durability: Waterproofing can reduce the corrosion of moisture on the internal components of the micro-motor, extending its service life. 3. Protect internal circuits: Moisture can cause circuit short circuits or damage, and waterproof design helps protect internal circuits from moisture intrusion and prevent faults caused by moisture. 4. Improve safety: In some application scenarios, such as medical devices or underwater equipment, waterproof design is a necessary condition for safe operation to prevent water from causing danger. 5. Maintain performance stability: Moisture can affect the performance of the micro-motor, such as reducing the speed, increasing the noise, etc., and waterproof design helps maintain the stability of its performance.

[0023] Further, the micro-motor is waterproofed to improve its reliability and durability in various environments, ensuring its safe and stable operation.

[0024] As a kind of more preferred embodiment, the utility model embodiment provides a kind of micromotor, including protective cylinder 100 and waterproof structure, the protective cylinder 100 is integrally formed structure, first tooth 101 is distributed in the opening axial of the both ends of the protective cylinder 100;The waterproof structure includes front cover 200 and back cover 300, the periphery of the front cover 200 and back cover 300 is respectively equipped with second tooth 202 and third tooth 301, and the second tooth 202 and third tooth 301 are made of soft glue;When the both ends of the protective cylinder 100 are connected with the front cover 100 and the back cover 200 respectively, the first tooth 101 is connected with the second tooth 202 and third tooth 301 adaptively;Specifically, protective cylinder 100 is sleeved on the outside of motor body, front cover 200 and second tooth 202 and back cover 300 and third tooth 301 are integrally arranged, further including through O-ring 201, through O-ring 201 is arranged on the surface of front cover 200 and the inside of second tooth 202, the first tooth 101 of the both ends of protective cylinder 100 is respectively connected with second tooth 202 and third tooth 301 by clamping, front cover 200 is installed on the front side of protective cylinder 100 and back cover 200 is installed on the back side of protective cylinder 100, second tooth 202 and third tooth 301 are made of silica gel, the sealing property of the connection of protective cylinder 100 and front cover 200 and back cover 300 is enhanced, the sealing property of the connection of motor body output shaft 400 and the surface of front cover 200 can be enhanced by through O-ring 201, and the waterproof property of protective cylinder 100 can be further improved by being provided with polyurethane coating on the surface of protective cylinder 100;During use, the third tooth 301 improves the sealing property of the connection of back cover 300 and motor body, front cover 200 is installed on motor body by the combination of second tooth 202 and O-ring 201, and the sealing waterproof property of motor body is improved, second tooth 202 and third tooth 301 are made of silica gel, which has the effects of wear resistance and high toughness, so that the device is not easy to be damaged.

[0025] Embodiment 2

[0026] Please refer to Figure 1 、 Figure 2 And Figure 3 The utility model embodiment provides a kind of micromotor, wherein, the inside of the protective cylinder 100 is provided with motor body;Specifically, protective cylinder 100 is sleeved on the outside of motor body, waterproof structure is installed on motor body conveniently and quickly, and it can also be quickly disassembled to facilitate maintenance, and protective cylinder 100 and waterproof structure can be recycled as a whole, suitable for a variety of micromotor.

[0027] It should be noted that the waterproof structure provided by the utility model is applicable to but not limited to micromotor, motor and servo motor.

[0028] As a preferred embodiment, the second thread 202 and the third thread 301 are made of silica gel, the second thread 202 and the front cover 200 are integrally arranged, and the third thread 301 and the rear cover 300 are integrally arranged; specifically, the second thread 202 and the front cover 200 are integrally arranged with the third thread 301 and the rear cover 300, on the one hand, to facilitate disassembly and assembly, and on the other hand, to improve the sealing and waterproof performance.

[0029] As a preferred embodiment, the through O-ring 201 is arranged on the surface of the front cover 200 and the inside of the second thread 202; the output end of the motor body output shaft 400 penetrates the surface of the front cover 200 through the through O-ring 201 and extends to the front side of the front cover 200; specifically, the through O-ring 201 can enhance the sealing performance of the connection between the motor body output shaft 400 and the surface of the front cover 200, and the through O-ring 201 is arranged on the surface of the front cover 200 and the inside of the second thread 202.

[0030] As a preferred embodiment, the surface of the protection cylinder 100 is provided with a polyurethane coating; specifically, polyurethane can provide excellent moisture resistance, chemical resistance, and dielectric properties for a long time; these properties enable the polyurethane coating to provide protection for critical electronic products and components.

[0031] As a kind of more preferred embodiment, the utility model embodiment provides a kind of micromotor, including protective cylinder 100 and waterproof structure, the protective cylinder 100 is integrally formed structure, first tooth 101 is distributed in the first tooth 101 of the opening shaft direction of the both ends of the protective cylinder 100;The waterproof structure includes front cover 200 and back cover 300, the periphery of the front cover 200 and back cover 300 is respectively equipped with second tooth 202 and third tooth 301, and the second tooth 202 and third tooth 301 are made of soft glue;When the both ends of the protective cylinder 100 are connected with the front cover 100 and the back cover 200 respectively, the first tooth 101 is connected with the second tooth 202 and third tooth 301, specifically, protective cylinder 100 is sleeved on the outside of motor main body, front cover 200 and second tooth 202 and back cover 300 and third tooth 301 are integrally arranged, further including through O-ring 201, through O-ring 201 is arranged on the surface of front cover 200 and the inside of second tooth 202, the first tooth 101 of the both ends of protective cylinder 100 is respectively connected with second tooth 202 and third tooth 301 by clamping, front cover 200 is installed on the front side of protective cylinder 100 and back cover 200 is installed on the back side of protective cylinder 100, second tooth 202 and third tooth 301 are made of silica gel, the sealing property of the connection of protective cylinder 100 and front cover 200 and back cover 300 is enhanced, the sealing property of the connection of motor main body output shaft 400 and the surface of front cover 200 can be enhanced by through O-ring 201, and the waterproof property of protective cylinder 100 can be further improved by being provided with polyurethane coating on the surface of protective cylinder 100;During the use of the device, third tooth 301 improves the sealing property of the connection of back cover 300 and motor main body, front cover 200 can be installed on motor main body by the combined arrangement of second tooth 202 and O-ring 201, and the sealing waterproof property of motor main body is improved, further, second tooth 202 and third tooth 301 are made of silica gel, have wear resistance and high toughness, so that the device is not easy to be damaged.

[0032] Finally, it also needs to be explained that, in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes" "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or still includes elements inherent to such process, method, article or terminal device. Without more limitation, the element defined by the statement "including a …" does not exclude the existence of other identical elements in the process, method, article or terminal device including the element.

[0033] The above has carried out the detailed introduction to the micro motor provided by the utility model, the principle and implementation mode of the utility model have been described in the paper by applying specific examples, the above embodiment is only used for helping understanding the method and core idea of the utility model; simultaneously, for the general technical personnel in the field, according to the idea of the utility model, there will be changes in specific implementation mode and application range, and the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A micromotor, characterized by comprising: The waterproof structure comprises a front cover and a rear cover, the periphery of the front cover and the rear cover is respectively provided with a second thread and a third thread in the axial direction, and the second thread and the third thread are made of soft glue. The first thread is matched and connected with the second thread and the third thread when the two ends of the protective cylinder are connected with the front cover and the rear cover respectively. The inside of the protective cylinder is provided with a motor body.

2. The micromotor according to claim 1, wherein The second thread and the third thread are made of silica gel, the second thread and the front cover are integrally arranged, and the third thread and the rear cover are integrally arranged.

3. The micromotor of claim 2, wherein, A through O-shaped ring is further arranged, which is arranged on the surface of the front cover and the inside of the second thread.

4. The micromotor according to claim 2 or 3, wherein The output end of the output shaft of the motor body penetrates the surface of the front cover through the through O-shaped ring and extends to the front side of the front cover.

5. The micromotor of claim 4, wherein, The surface of the protective cylinder is provided with a polyurethane coating.

6. The micromotor of claim 1, wherein, ​