Outer rotor three-proofing motor

Abstract

The invention discloses an outer rotor three-proofing motor which comprises a motor winding and a shaft, and the outer side of the motor winding is provided with a dustproof, explosion-proof and waterproof insulating resin layer. According to the invention, the outer side of the motor winding is provided with the dustproof, explosion-proof and waterproof insulating resin layer, and the motor winding is tightly wrapped by the high-temperature-resistant insulating resin adhesive in an adhesive pouring manner, so that the special dustproof, waterproof and explosion-proof processing properties are achieved, and the insulating resin layer can isolate electric sparks and play an explosion-proof role; the insulating resin layer also has the functions of water prevention, dust prevention, aerial fog prevention and oil smoke prevention; the insulating resin layer adopts epoxy resin AB glue, and the epoxy resin AB glue is a bi-component high-temperature-resistant adhesive based on epoxy resin; the epoxy resin has good heat-conducting property, so that the heat dissipation of the motor is not influenced; the heating temperature of the motor after resin potting is reduced by 30% compared with the original heating temperature of the motor; after the motor winding is filled with the insulating resin, the explosion-proof and explosion-proof effects can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of motors, in particular to an outer rotor three-proof motor. Background Art

[0002] The existing fan assembly usually consists of a motor, a motor bracket, and an impeller. The motor is fixedly mounted on a housing through the motor bracket, and the impeller is installed in the housing and transmission-connected to the motor, and the motor drives the impeller to rotate.

[0003] A waterproof and dustproof outer rotor motor disclosed in the existing publication number CN114665649B includes a rotor, an end cover is installed on the top of the rotor, a first sealing ring installation groove is opened at one end of the rotor at the end cover, and a first sealing ring is installed on the first sealing ring installation groove; a plane small fan blade and a side small fan blade are installed on the top of the end cover, and the plane small fan blade is located on the inner side of the side small fan blade; a shaft is installed on the rotor, the shaft passes through the end cover, and a bracket is connected to the shaft by a thread; the outer rotor and the end cover rotate, at this time, the plane small fan blade and the side small fan blade on the end cover can generate wind force, thereby generating internal pressure to give air outward pressure, thereby preventing oil smoke and dust from entering between the bracket and the end cover; a first sealing ring is arranged between the rotor and the end cover, and a convex groove structure is adopted to enhance the sealing performance of the rotor and the end cover, and enhance the waterproof, dustproof, aerosol and oil smoke proof performance there.

[0004] Although the existing technology improves the waterproof and dustproof performance of the motor, since electric sparks are generated when the motor is working, there is a risk of dust explosion when it encounters dust. In order to solve the above technical problems, we propose an outer rotor triple-proof motor. Summary of the invention

[0005] The purpose of the present invention is to provide an outer rotor three-proof motor to solve the problem in the prior art that the motor will generate sparks when working and there will be a risk of dust explosion after encountering dust.

[0006] To achieve the above object, the present invention provides the following technical solution: an outer rotor triple-proof motor, comprising a motor winding and a shaft, wherein an insulating resin layer for preventing dust, explosion and water is arranged on the outer side of the motor winding.

[0007] Preferably, it further comprises a rotor and a bracket, wherein the bracket is fixed on the shaft and the rotor is located outside the insulating resin layer.

[0008] Preferably, the shaft passes through the bracket, and the bracket and the shaft are connected via threads.

[0009] Preferably, the insulating resin layer completely wraps the motor winding.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. An insulating resin layer for dustproof, explosion-proof and waterproof is set on the outside of the motor winding. The motor winding is tightly wrapped with high-temperature resistant insulating resin glue by glue pouring, so as to achieve the special process performance of dustproof, waterproof and explosion-proof. The insulating resin layer can isolate electric sparks and play an explosion-proof role. Similarly, the insulating resin layer can also play the role of waterproof, dustproof, aerosol-proof and oil fume-proof. After the motor winding is poured with insulating resin, it can play the role of explosion-proof and explosion-proof.

[0012] 2. The insulating resin layer uses epoxy resin AB glue. Epoxy resin AB glue is a two-component high-temperature resistant adhesive based on epoxy resin. The operating temperature is -50~+180℃, and can reach +250℃ for a short time. And because epoxy resin has good thermal conductivity, it also does not affect the heat dissipation of the motor. After using resin glue, the heating temperature of the motor is reduced by 30% compared with the original motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] In the figure: 1. Motor winding; 2. Insulating resin layer; 3. Rotor; 4. Bracket; 5. Shaft. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0017] See also Figure 1In an embodiment of the present invention, an outer rotor three-proof motor includes a motor winding 1 and a shaft 5. An insulating resin layer 2 for dustproof, explosion-proof and waterproof is arranged on the outside of the motor winding 1; the insulating resin layer 2 completely wraps the motor winding 1, and the insulating resin layer can isolate electric sparks and play an explosion-proof role. Similarly, the insulating resin layer can also play the role of waterproof, dustproof, aerosol-proof and oil fume-proof. The insulating resin layer 2 adopts epoxy resin AB glue. The epoxy resin AB glue is a two-component high-temperature resistant adhesive based on epoxy resin. The operating temperature is -50 to +180°C, and can reach +250°C in a short time; and because the epoxy resin has good thermal conductivity, it also does not affect the heat dissipation of the motor; after the resin is poured, the heating temperature of the motor is reduced by 30% compared with the original heating temperature of the motor; after the motor winding is poured with insulating resin, it can play the role of explosion-proof and explosion-proof (it needs to be further explained that the shaft of the motor does not need to be poured with glue).

[0018] It also includes a rotor 3 and a bracket 4. The bracket 4 is fixed on a shaft 5. The rotor 3 is located outside the insulating resin layer 2. The shaft 5 passes through the bracket 4. The bracket 4 and the shaft 5 are connected by threads.

[0019] The working principle of the present invention is as follows: an insulating resin layer 2 for dustproof, explosion-proof and waterproof is arranged on the outside of the motor winding 1, the insulating resin layer 2 completely wraps the motor winding 1, the insulating resin layer can isolate electric sparks and play an explosion-proof role. Similarly, the insulating resin layer can also play the functions of waterproof, dustproof, aerosol-proof and oil fume-proof. The insulating resin layer 2 adopts epoxy resin AB glue, which is a two-component high-temperature resistant adhesive based on epoxy resin. The operating temperature is -50 to +180°C, and can reach +250°C in a short time; and because epoxy resin has good thermal conductivity, it also does not affect the heat dissipation of the motor.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An outer rotor triple-proof motor, comprising a motor winding (1) and a shaft (5), characterized in that: An insulating resin layer (2) for preventing dust, explosion and water is provided on the outside of the motor winding (1).

2. The outer rotor triple-proof motor according to claim 1, characterized in that: It also includes a rotor (3) and a bracket (4), wherein the bracket (4) is fixed on the shaft (5), and the rotor (3) is located outside the insulating resin layer (2).

3. The outer rotor triple-proof motor according to claim 2, characterized in that: The shaft (5) passes through the bracket (4), and the bracket (4) and the shaft (5) are connected via threads.

4. The outer rotor triple-proof motor according to claim 1, characterized in that: The insulating resin layer (2) completely wraps the motor winding (1).

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