Miniature motor with rust-proof interior

Abstract

The utility model discloses an internal anti-corrosion micro motor, which relates to the field of micro motors and comprises a micro motor shell, a motor assembly used for driving is arranged in the micro motor shell and comprises a micro motor stator body, and a plurality of threaded holes are formed in the outer wall of the right side of the micro motor shell. And a sealing groove is formed in the right side of the micro motor shell. According to the micro motor with the internal anti-corrosion function, the micro motor can be conveniently sealed and disassembled through the arrangement of the bolts and the end cover, and external moisture and corrosive substances can be conveniently blocked through the arrangement of the sealing gasket, the sealing ring and the sealing groove; the micro motor stator body or electrical components and mechanical components in the micro motor are ensured not to be damaged by the external environment, the internal anti-rust capability of the micro motor is enhanced, and the anti-rust coating, the moistureproof isolation layer and the protection layer are arranged, so that the micro motor is further prevented from being corroded and moistureproof.

Description

Technical Field

[0001] This utility model relates to the field of micro motor technology, specifically to a micro motor with internal rust prevention. Background Technology

[0002] Miniature motors generally refer to motors with small size and capacity, and output power generally below several hundred watts. They are widely used in various control systems and transmission mechanical loads to realize functions such as detection, analysis, calculation, amplification, execution, or conversion of electromechanical signals or energy. When existing miniature motors are used, if they are in a humid environment for a long time, moisture can easily penetrate into the motor and react chemically with the metal parts, leading to corrosion.

[0003] To overcome the aforementioned defects, existing technology (Chinese patent application number: 202022767511.X, application date: November 26, 2020) discloses a rust-resistant and jamming-resistant motor device, including a mounting frame. Slide grooves are provided on one side of the top and bottom inner walls of the mounting frame. Limit seats are fixedly installed on one side of the top and bottom of the mounting frame. First mounting blocks are provided inside the two sets of slide grooves. First absorbent cotton is provided on one side of each of the two sets of first mounting blocks. First connecting blocks are fixedly installed at one end of each of the two sets of first mounting blocks. One end of each of the two sets of first connecting blocks is fixed to one side of the outer surface of a fixing plate. A second connecting block is fixedly installed near the middle of one side of the fixing plate. A second mounting plate is fixedly installed on one side of the second connecting block. A second absorbent cotton is fixedly installed on one side of the second mounting plate. The sealing ring solves the problem of poor sealing at the connection between the drive shaft and the motor body, which easily leads to rust.

[0004] Although existing technology can solve the problem of poor sealing at the connection between the drive shaft and the motor body, and the setting of the sealing ring improves the sealing at the connection between the drive shaft and the motor body, there are still gaps between the mounting frame and the motor body, which may still allow moisture and corrosive substances to enter the motor, resulting in rust inside the micro motor. In addition, although the setting of the first and second absorbent cotton helps to absorb and prevent moisture accumulation, the absorbent cotton may become saturated or deteriorate after long-term use. If the absorbent cotton is not replaced in time, its moisture absorption capacity will decrease, which may exacerbate the rust of the motor.

[0005] Therefore, we proposed a micro motor with internal rust prevention that can effectively solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a micro motor with internal rust prevention, in order to solve the problem mentioned in the background art. In the current motor device, the setting of the sealing ring improves the sealing performance at the connection between the drive shaft and the motor body, but there is still a gap between the mounting frame and the motor body, which may still allow moisture and corrosive substances to enter the motor, resulting in rust inside the micro motor. In addition, although the setting of the first and second absorbent cotton helps to absorb and prevent moisture accumulation, after long-term use, the absorbent cotton may become saturated or deteriorate. If the absorbent cotton is not replaced in time, its moisture absorption capacity will decrease, which may aggravate the problem of motor rust.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a micro motor with internal rust prevention, comprising a micro motor housing, wherein a motor assembly for driving is disposed inside the micro motor housing, the motor assembly including a micro motor stator body, and a plurality of threaded holes formed on the outer wall of the right side of the micro motor housing; a sealing groove is formed on the right side of the micro motor housing, and a waterproof sealing assembly is disposed on the right side of the micro motor housing, the sealing assembly including an end cap, and a plurality of bolts threadedly connected to the outer wall of the end cap; a plurality of reinforcing ribs are fixedly installed on the outer wall of the micro motor housing, a terminal block is disposed on the top of the micro motor housing, and a corrosion-resistant structure for rust prevention is disposed inside the micro motor housing.

[0008] As a preferred technical solution of this application, the stator body of the micro motor is provided with a winding wire inside, and a bearing rod is connected to the right side of the stator body of the micro motor, with the end of the bearing rod penetrating the bearing seat.

[0009] As a preferred technical solution of this application, a sealing gasket is fixedly installed on the inner wall of the left side of the end cover, and the sealing gasket penetrates the housing of the micro motor. A sealing ring is fixedly connected to the inner wall of the left side of the end cover, and the sealing ring is located on the outer wall of the sealing gasket. A bearing seat is fixedly installed on the right side of the end cover.

[0010] As a preferred technical solution of this application, the corrosion-resistant structure includes a rust-proof coating, the outer wall of the rust-proof coating is wrapped with a moisture-proof isolation layer, and a protective layer is fixedly connected to the outer wall of the moisture-proof isolation layer.

[0011] As a preferred technical solution of this application, the end cap and the micro motor housing are detachably connected, and the micro motor housing and the threaded hole and sealing groove are integrated. The end cap can be disassembled, repaired or replaced by the operator removing the bolt from the threaded hole.

[0012] As a preferred technical solution of this application, the sealing gasket and the sealing ring are tightly fitted to the end cap, and both the sealing gasket and the sealing ring are made of rubber. The sealing ring and the sealing groove are movably connected. The sealing gasket and the sealing ring made of rubber are connected through the end cap, which has good elasticity and corrosion resistance and can maintain the sealing effect for a long time.

[0013] As a preferred technical solution of this application, the anti-rust coating and the moisture-proof isolation layer are connected by coating, and the anti-rust coating is set as a water-based rust inhibitor. The moisture-proof isolation layer is made of a moisture-proof film. The moisture-proof isolation layer and the protective layer are fixedly connected, and the protective layer is made of metal material. The anti-rust coating first plays a role in preventing moisture and corrosive substances from directly contacting the micro motor stator body inside the motor. The moisture-proof isolation layer further isolates the external humid environment, ensuring that the anti-rust coating is not damaged, while preventing moisture from penetrating into the motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This internally rust-resistant micro motor, with its bolts and end caps, facilitates sealing and disassembly of the micro motor. Furthermore, the inclusion of sealing gaskets, sealing rings, and sealing grooves helps to block external moisture and corrosive substances, ensuring that the micro motor stator body, electrical components, and mechanical components inside the micro motor are protected from external environmental damage, thus enhancing the internal rust resistance of the micro motor. Additionally, the addition of an anti-rust coating, a moisture-proof isolation layer, and a protective layer further facilitates rust and moisture protection for the micro motor. Specific details are as follows:

[0015] 1. Install bolts and end caps. Insert the bolts through the end caps into the corresponding threaded holes to install the end caps on the micro motor housing. Remove the bolts from the threaded holes to disassemble, repair, or replace the end caps, thus achieving sealing and disassembly of the micro motor.

[0016] Furthermore, a sealing gasket, a sealing ring, and a sealing groove are provided. The sealing gasket, connected by the end cap, is compressed and tightly adhered to the inside of the micro motor housing, while the sealing ring is also tightly fitted into the sealing groove, forming an effective sealing barrier that can prevent external moisture and corrosive substances from entering the micro motor. This ensures that the micro motor stator body or electrical and mechanical components inside the micro motor are not damaged by the external environment, greatly enhancing the internal rust resistance of the micro motor.

[0017] 2. A rust-proof coating, a moisture-proof isolation layer, and a protective layer are incorporated. The rust-proof coating prevents moisture and corrosive substances from directly contacting the micro motor stator inside the motor. The moisture-proof isolation layer further isolates the motor from the external humid environment, preventing moisture from penetrating into the motor. Together with the protective layer, this not only enhances the durability of the micro motor casing but also prevents external mechanical damage from harming the internal structure. This achieves further rust and moisture protection for the micro motor, improving its stability and reliability, extending its service life, and reducing maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a partial structural diagram of the micro motor housing and micro motor stator body of this utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the micro motor housing of this utility model;

[0021] Figure 4 This is a partial cross-sectional structural diagram of the end cap of this utility model;

[0022] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 6 This utility model Figure 3 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Miniature motor housing; 2. Threaded hole; 3. Miniature motor stator body; 4. Bearing rod; 5. End cover; 6. Bolt; 7. Sealing gasket; 8. Sealing ring; 9. Bearing housing; 10. Sealing groove; 11. Rust-proof coating; 12. Moisture-proof isolation layer; 13. Protective layer; 14. Wire coil; 15. Reinforcing rib; 16. Terminal block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 The present invention provides the following technical solution:

[0027] Example 1: To address the issue that while the sealing ring in commercially available motor devices improves the seal between the drive shaft and the motor body, gaps still exist between the mounting frame and the motor body, allowing moisture and corrosive substances to enter the motor and cause internal corrosion. This example discloses an internally rust-resistant micro motor with the following technical details, which can be found in the attached document. Figure 1 Appendix Figure 3 -Appendix Figure 4 and attached Figure 6 The device includes a micro motor housing 1, inside which is a motor assembly for driving the motor. The motor assembly includes a micro motor stator body 3. Several threaded holes 2 are formed on the outer wall of the right side of the micro motor housing 1. A sealing groove 10 is formed on the right side of the micro motor housing 1. A waterproof sealing assembly is provided on the right side of the micro motor housing 1, including an end cap 5. Several bolts 6 are threaded onto the outer wall of the end cap 5. Several reinforcing ribs 15 are fixedly installed on the outer wall of the micro motor housing 1. A terminal block 16 is provided on the top of the micro motor housing 1. A winding 14 is provided inside the micro motor stator body 3. The right side of the end cap 5 is connected to a bearing rod 4, and the end of the bearing rod 4 passes through the bearing seat 9; a sealing gasket 7 is fixedly installed on the inner wall of the left side of the end cap 5, and the sealing gasket 7 passes through the micro motor housing 1; a sealing ring 8 is fixedly connected to the inner wall of the left side of the end cap 5, and the sealing ring 8 is located on the outer wall of the sealing gasket 7; a bearing seat 9 is fixedly installed on the right side of the end cap 5; the end cap 5 and the micro motor housing 1 are detachably connected, and the micro motor housing 1, the threaded hole 2, and the sealing groove 10 are integrated; the sealing gasket 7 and the sealing ring 8 are tightly fitted to the end cap 5, and both the sealing gasket 7 and the sealing ring 8 are made of rubber; the sealing ring 8 and the sealing groove 10 are movably connected.

[0028] End cap 5 passes through bearing rod 4 and is fitted onto micro motor housing 1. The operator manually inserts bolt 6 through end cap 5 into the corresponding threaded hole 2, thus installing end cap 5 onto micro motor housing 1. End cap 5 connects a rubber sealing gasket 7 and a sealing ring 8, which possess good elasticity and corrosion resistance, maintaining a long-term sealing effect. When end cap 5 is installed on micro motor housing 1, sealing gasket 7 is compressed and tightly adheres to the inside of micro motor housing 1. Simultaneously, sealing ring 8 is located around sealing gasket 7 and tightly fits into the sealing groove 10 of micro motor housing 1, ensuring the sealing gasket 7... The tight fit between the seal 7 and the sealing ring 8 forms an effective sealing barrier, which can prevent external moisture and corrosive substances from entering the micro motor. This ensures that the micro motor stator body 3 or electrical and mechanical components inside the micro motor are not damaged by the external environment, greatly enhancing the internal anti-rust capability of the micro motor. When it is necessary to replace the sealing gasket 7 or the sealing ring 8, the staff can remove the bolt 6 from the threaded hole 2 to disassemble, repair or replace the end cover 5. The setting of the reinforcing rib 15 enhances the structural strength of the micro motor housing 1 and improves the overall stability of the motor.

[0029] Example 2: This example discloses the following technical content regarding an internally rust-resistant miniature motor, facilitating further rust and moisture protection for the miniature motor. Please refer to the attached document. Figure 1 -Appendix Figure 2 and attached Figure 5 The micro motor housing 1 has an internal corrosion-resistant structure for rust prevention. The corrosion-resistant structure includes a rust-proof coating 11, the outer wall of which is covered with a moisture-proof isolation layer 12, and a protective layer 13 is fixedly connected to the outer wall of the moisture-proof isolation layer 12. The rust-proof coating 11 and the moisture-proof isolation layer 12 are connected by coating, and the rust-proof coating 11 is a water-based rust inhibitor. The moisture-proof isolation layer 12 is made of a moisture-proof film, and the moisture-proof isolation layer 12 and the protective layer 13 are fixedly connected. The protective layer 13 is made of metal.

[0030] The anti-rust coating 11, made of water-based rust inhibitor, serves as the first layer of protection for the internal metal components of the motor. It exhibits excellent rust prevention performance. The moisture-proof isolation layer 12, made of a moisture-proof film, tightly wraps around the outer wall of the anti-rust coating 11, effectively isolating the external humid environment from corroding the anti-rust coating 11 and the internal micro-motor stator body 3. The protective layer 13, as the outermost layer, is made of metal and not only enhances the overall strength of the motor casing but also further protects the internal anti-rust coating 11 and moisture-proof isolation layer 12. This prevents corrosion when the micro-motor is in a humid or corrosive environment. The anti-rust coating 11 first plays its role in preventing moisture and corrosive substances from directly contacting the micro motor stator body 3 inside the motor. The moisture-proof isolation layer 12 further isolates the external humid environment, ensuring that the anti-rust coating 11 is not damaged, while preventing moisture from penetrating into the motor. Together with the protective layer 13 as an outer layer of protection, it not only enhances the durability of the micro motor housing 1, but also prevents external mechanical damage from damaging the internal structure. This achieves further rust and moisture protection for the micro motor, which not only improves the stability and reliability of the motor, but also extends its service life and reduces maintenance costs.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A micro motor with internal rust prevention, comprising a micro motor housing (1), wherein a motor assembly for driving is provided inside the micro motor housing (1), the motor assembly comprising a micro motor stator body (3), and a plurality of threaded holes (2) are provided on the outer wall of the right side of the micro motor housing (1); characterized in that A sealing groove (10) is provided on the right side of the micro motor housing (1), and a waterproof sealing assembly is provided on the right side of the micro motor housing (1). The sealing assembly includes an end cap (5), and the outer wall of the end cap (5) is threaded with several bolts (6). The outer wall of the micro motor housing (1) is fixedly equipped with several reinforcing ribs (15), the top of the micro motor housing (1) is provided with wiring terminals (16), and the interior of the micro motor housing (1) is provided with a corrosion-resistant structure for rust prevention.

2. The internal rust-preventing micromotor according to claim 1, characterized in that: The micro motor stator body (3) is provided with a winding (14) inside. The right side of the micro motor stator body (3) is connected to a bearing rod (4), and the end of the bearing rod (4) passes through the bearing seat (9).

3. The internal rust-preventing micromotor according to claim 1, characterized in that: A sealing gasket (7) is fixedly installed on the inner wall of the left side of the end cover (5), and the sealing gasket (7) penetrates the micro motor housing (1). A sealing ring (8) is fixedly connected to the inner wall of the left side of the end cover (5), and the sealing ring (8) is located on the outer wall of the sealing gasket (7). A bearing seat (9) is fixedly installed on the right side of the end cover (5).

4. The internal rust-preventing micromotor according to claim 1, characterized in that: The corrosion-resistant structure includes a rust-proof coating (11), the outer wall of which is wrapped with a moisture-proof isolation layer (12), and a protective layer (13) is fixedly connected to the outer wall of the moisture-proof isolation layer (12).

5. The internal rust-preventing micromotor according to claim 3, characterized in that: The end cap (5) and the micro motor housing (1) are detachably connected, while the micro motor housing (1) and the threaded hole (2) and sealing groove (10) are integrated.

6. The internal rust-preventing micromotor according to claim 3, characterized in that: The sealing gasket (7) and the sealing ring (8) are tightly fitted to the end cap (5), and both the sealing gasket (7) and the sealing ring (8) are made of rubber. The sealing ring (8) and the sealing groove (10) are movably connected.

7. The internal rust-preventing micromotor according to claim 4, characterized in that: The rust-proof coating (11) and the moisture-proof isolation layer (12) are connected by coating, and the rust-proof coating (11) is set as a water-based rust inhibitor. The moisture-proof isolation layer (12) is made of a moisture-proof film. The moisture-proof isolation layer (12) and the protective layer (13) are connected by a fixed connection, and the protective layer (13) is made of metal material.

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