Industrial ceiling fan outer rotor permanent magnet oil-immersed heat dissipation motor

Abstract

This utility model proposes an external rotor permanent magnet oil-immersed cooling motor for industrial ceiling fans. The motor's cylindrical outer shell and bottom cover are integrally die-cast, as are the upper cover and outer shell. The upper cover and cylindrical outer shell are sealed together, fixing the motor's stator and neodymium iron boron permanent magnets within. Insulating cooling oil is provided inside the shell, with the oil level not exceeding the top of the motor stator. The motor has a simple structure, making it suitable for any environment. The motor body should be made of all-aluminum alloy die-casting to prevent leakage of insulating cooling oil and its impact on the surrounding environment. It is highly practical, conducive to widespread use, and offers high economic benefits.

Description

Technical Field

[0001] This utility model relates to an external rotor permanent magnet oil-immersed heat dissipation motor for industrial ceiling fans. Background Technology

[0002] Currently, the entire ceiling fan manufacturing industry uses self-cooling motors. Firstly, the industry standard uses carbon steel casings; secondly, carbon steel motor casings have slow heat dissipation; and thirdly, internal heat accumulates during motor operation. Because self-cooling motors use ordinary carbon steel casings, heat dissipation from the internal components is slow, leading to high motor operating temperatures, increased noise, and frequent malfunctions. There is an urgent need for an oil-immersed cooling motor that can quickly dissipate heat from the internal components and is less prone to oil leakage. Utility Model Content

[0003] To overcome the problems of the existing technology, this utility model provides an industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor.

[0004] This utility model provides the following technical solution:

[0005] An industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor is disclosed. The motor's cylindrical outer shell and bottom cover are integrally formed by die casting, and the motor's upper cover and outer shell are integrally formed by die casting. The upper cover and outer shell are sealed together to fix the motor's stator and neodymium iron boron permanent magnets. Insulating cooling oil is provided inside the shell, and the level of the cooling oil is not higher than the top of the motor stator.

[0006] Furthermore, the motor stator shaft is fixedly connected to the bottom cover using bearings; a central hole is opened in the upper cover of the motor, through which the motor stator shaft extends, and the wires are located in the middle of the motor stator shaft.

[0007] Furthermore, the cylindrical housing of the motor has threaded holes, the upper cover housing of the motor has through holes, and both the upper cover housing and the cylindrical housing have O-rings at their upper edges. The upper cover housing and the cylindrical housing are sealed together by screws.

[0008] Furthermore, a lip-shaped sealing ring is provided in the center hole of the motor cover.

[0009] Furthermore, the insulating and heat-dissipating oil is an electrical insulating oil.

[0010] By adopting the above technical solution, this utility model has the following beneficial effects:

[0011] (1) The motor structure of this utility model is simple and can be used in any environment. It should be made of all-aluminum alloy die casting to prevent oil leakage and thus avoid impacting the surrounding environment. It is highly practical, conducive to widespread use, and has high economic benefits.

[0012] (2) The insulating heat dissipation oil used in this utility model is easy to conduct heat and dissipates heat quickly, which can rapidly reduce the internal temperature of the motor. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the motor structure of this utility model;

[0014] Figure 2 This is a side view of the structure of the motor of this utility model.

[0015] Among them: 1-bottom cover, 2-bottom cover bearing, 3-neodymium iron boron permanent magnet, 4-motor stator, 5-O-ring seal, 6-top cover; 7-wire hole, 8-lip seal, 9-motor fixed shaft, 10-top cover bearing, 11-insulating heat dissipation oil, 12-wire. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the structural diagrams and specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0017] Example 1

[0018] This utility model provides an industrial ceiling fan external rotor permanent magnet oil-immersed heat dissipation motor. The motor's cylindrical outer shell and bottom cover 1 are die-cast integrally, and the motor's upper cover and upper cover 6 are die-cast integrally. The upper cover and cylindrical outer shell are sealed together, fixing the motor stator 4 and neodymium iron boron permanent magnet 3 therein. Insulating heat dissipation oil 11 is provided inside the shell, and the liquid level of the heat dissipation oil is not higher than the top of the motor stator.

[0019] The motor stator shaft is fixedly connected to the bottom cover using bearing 2; the motor fixed shaft 9 is fixed by the upper cover bearing 10. A center hole is opened in the upper cover of the motor, through which the motor stator shaft extends. A wire hole 7 is provided in the stator shaft, and the wire 12 is located in the middle of the motor stator shaft. A lip seal 8 is provided in the center hole of the upper cover of the motor for sealing the stator shaft. A threaded hole is provided on the cylindrical housing of the motor, and a through hole is provided on the upper cover housing. Both the upper cover housing and the cylindrical housing have O-ring seals 5 on their upper edges, and the upper cover housing and the cylindrical housing are sealed together by screws. This ensures that the motor will not leak cooling oil due to material structure gaps during operation. The insulating cooling oil is an electrical insulating oil, and No. 25 insulating cooling oil can be used.

[0020] During operation, the heat generated by the motor is conducted to the aluminum alloy casing by the electrical cooling oil. The excellent thermal conductivity of aluminum allows for rapid heat dissipation, resulting in a low internal temperature for the motor. This ensures that the overall motor temperature is low, the neodymium iron boron permanent magnets do not demagnetize due to high temperatures, the stator coils do not experience reduced insulation due to high temperatures, the operating current does not increase due to high temperatures, thus avoiding any impact on the circuitry and control system, and the operating torque does not decrease due to high temperatures.

[0021] The embodiments described above are merely illustrative of the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor, characterized in that, The cylindrical housing and bottom cover of the motor are die-cast as one piece, and the upper cover housing and the top cover housing are die-cast as one piece. The upper cover housing and the cylindrical housing are sealed together to fix the stator and neodymium iron boron permanent magnet of the motor. Insulating heat dissipation oil is provided inside the housing, and the level of heat dissipation oil is not higher than the top of the stator of the motor.

2. The industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor according to claim 1, characterized in that, The motor stator shaft is fixedly connected to the bottom cover by bearings; a center hole is opened in the upper cover of the motor, the motor stator shaft extends out from the center hole, and the wires are located in the middle of the motor stator shaft.

3. The industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor according to claim 1, characterized in that, The motor has threaded holes on its cylindrical housing and through holes on its upper cover housing. Both the upper cover housing and the cylindrical housing have O-rings at their upper edges, and the upper cover housing and the cylindrical housing are sealed together by screws.

4. The industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor according to claim 2, characterized in that, The center hole of the motor cover is equipped with a lip seal.

5. The industrial ceiling fan external rotor permanent magnet oil-immersed cooling motor according to claim 1, characterized in that, The insulating and heat-dissipating oil is an electrical insulating oil.

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