Motor lower end cover convenient for heat dissipation and dust prevention

Abstract

The utility model belongs to the field of motor dust prevention, and particularly relates to a motor lower end cover convenient for heat dissipation and dust prevention. A first fixing ring is arranged at the upper end of the fixing pipe; the upper end of the first fixing ring is fixedly connected with a second fixing ring; first groove bodies are formed in the upper and lower ends of the second fixing ring; ventilation holes and air opening adjusting holes are formed in the upper end and the lower end of the first groove body in a penetrating mode. According to the utility model, heat exchange work can be rapidly carried out on the interior of the motor through the ventilation holes and the air-opening adjusting holes, and dust at the ventilation holes and the air-opening adjusting holes in the heat exchange process can be blocked through the high-temperature-resistant dustproof cotton stickers at the first groove bodies above and below the second fixing ring; therefore, the problem that the closed structure of the external rotation permanent magnet motor is inconvenient to dissipate heat in the dustproof process is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor dustproof field, concretely relates to motor lower end cover convenient for heat dissipation and dust prevention. BACKGROUND

[0002] The outer transmission permanent magnet motor, also known as a permanent magnet outer transmission motor or a double-fed motor, is a special type of motor, and its main feature is the special design of its rotor and permanent magnet. The rotor is usually located outside and is frequency-regulated by a frequency converter, thereby achieving a wide speed range and high energy output. This motor has the advantages of simple structure, easy maintenance, high efficiency, high power density, and low maintenance requirements, and is therefore widely used in various industrial fields such as mining, construction, and transportation.

[0003] The outer transmission permanent magnet motor commonly used in existing industrial fans has a design feature of upper and lower sealing covers, which has significant advantages in cost control and production efficiency. However, the heat accumulated inside the motor during operation is difficult to dissipate effectively, thereby affecting the overall heat dissipation performance, especially under varying environmental conditions, this heat dissipation problem is more prominent, which seriously shortens the service life of the motor and causes its performance to fluctuate greatly under different environmental conditions.

[0004] Therefore, the motor lower end cover convenient for heat dissipation and dust prevention is proposed, which solves the problem of poor performance stability caused by poor heat dissipation through the design of the ventilation opening after multiple tests and the structure of high-temperature dust-proof cotton set at the ventilation place. INVENTION CONTENTS

[0005] In order to overcome the problem of poor heat dissipation of the outer transmission permanent magnet motor commonly used in existing industrial fans, which affects the service life and performance stability of the motor, a motor lower end cover convenient for heat dissipation and dust prevention is proposed.

[0006] The technical scheme of the utility model is: a motor lower end cover convenient for heat dissipation and dust prevention, comprising a fixed tube; a first fixed ring is arranged at the upper end of the fixed tube; a second fixed ring is fixedly connected to the upper end of the first fixed ring; a first groove is formed at the upper and lower ends of the second fixed ring; a ventilation hole and an air flow adjusting hole are formed at the upper and lower ends of the first groove.

[0007] Preferably, the ventilation hole and the air flow adjusting hole can quickly heat exchange the inside of the motor, and the high-temperature dust-proof cotton on the first groove of the second fixed ring can block the dust at the ventilation hole and the air flow adjusting hole during heat exchange, thereby solving the problem of poor heat dissipation during dust prevention of the closed structure of the outer transmission permanent magnet motor.

[0008] As a preferred embodiment, the arc-shaped outer wall of the fixed tube is provided with a fixed hole; and a connecting disc is fixedly connected to the lower end of the fixed tube.

[0009] As preferred, the upper and lower ends of the connecting disc are provided with first mounting holes which are circular and uniformly distributed; the upper end of the integrated structure of the fixing tube and the first fixing ring is provided with second mounting holes which are circular and uniformly distributed.

[0010] As preferred, the number of the first mounting holes is the same as that of the second mounting holes.

[0011] As preferred, the outer wall of the connecting disc is in a convex structure.

[0012] As preferred, the inner wall arc surface of the air adjusting hole is provided with a groove.

[0013] As preferred, the fixing tube, the connecting disc, the first fixing ring and the second fixing ring are all in an all-aluminum alloy structure.

[0014] The beneficial effects of the utility model are that the heat exchange work of the motor interior can be quickly performed through the ventilation hole and the air adjusting hole, and the dust at the ventilation hole and the air adjusting hole in the heat exchange process can be blocked through the high-temperature-resistant dustproof cotton at the first groove body of the second fixing ring, thereby solving the problem that the closed structure of the external-rotor permanent magnet motor is inconvenient for heat dissipation in the dustproof process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a motor lower end cover convenient for heat dissipation and dust prevention, which relates to a motor lower end cover.

[0016] Figure 2 The utility model discloses a motor lower end cover convenient for heat dissipation and dust prevention, which relates to a motor lower end cover.

[0017] Figure 3 The utility model discloses a motor lower end cover convenient for heat dissipation and dust prevention, which relates to a motor lower end cover.

[0018] Figure 4 The utility model discloses a motor lower end cover convenient for heat dissipation and dust prevention, which relates to a motor lower end cover.

[0019] The marks in the drawings are: 1, fixing tube;2, connecting disc;3, first mounting hole;4, fixing hole;5, first fixing ring;6, second mounting hole;7, second fixing ring;8, first groove body;9, ventilation hole;10, air adjusting hole. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the drawings and examples.

[0021] Please refer to Figures 1-4The utility model provides an embodiment: motor lower end cover convenient for heat dissipation and dust prevention, including fixed pipe 1, the upper end of fixed pipe 1 is provided with first fixed ring 5, the upper end of first fixed ring 5 is fixedly connected with second fixed ring 7, the upper and lower ends of second fixed ring 7 are provided with first slot 8, the upper and lower ends of first slot 8 are provided with ventilation hole 9 and open air adjusting hole 10.

[0022] Please refer to Figure 1 And Figure 3 In this embodiment, the arc-shaped outer wall of the fixed pipe 1 is provided with a fixed hole 4, the lower end of the fixed pipe 1 is fixedly connected with a connecting disc 2, the motor rotor is installed in the inner wall of the fixed pipe 1, then the stud is passed through the fixed hole 4, the motor rotor is fixed in the inner wall of the fixed pipe 1, the upper and lower ends of the connecting disc 2 are provided with first mounting holes 3 which are circular and uniformly distributed, the upper end of the integrated structure of the fixed pipe 1 and the first fixed ring 5 is provided with second mounting holes 6 which are circular and uniformly distributed, the first fixed ring 5 is screwed onto the fixed pipe 1 through the second mounting holes 6 on the first fixed ring 5 after the high-temperature dustproof cotton is installed, and the device can be installed at the lower end of the outer rotating permanent magnet motor through the first mounting holes 3.

[0023] Please refer to Figure 2 And Figure 4 In this embodiment, the number of first mounting holes 3 is the same as the number of second mounting holes 6, the outer wall of the connecting disc 2 is in convex structure, the inner wall of the open air adjusting hole 10 is provided with a groove, the fixed pipe 1, the connecting disc 2, the first fixed ring 5 and the second fixed ring 7 are all made of full aluminum alloy structure, which can improve the overall strength and thus improve the service life.

[0024] First, the high-temperature dustproof cotton is placed in the first slot 8 above and below the second fixed ring 7, the high-temperature dustproof cotton first slot 8 and the ventilation hole 9 are blocked, then the second fixed ring 7 is installed on the fixed pipe 1 by passing the stud through the second mounting hole 6, then the motor rotor is placed in the inner wall of the fixed pipe 1, and the motor rotor is fixed on the inner wall of the fixed pipe 1 by using the stud to pass through the fixed hole 4 and install on the motor rotor, then the connecting disc 2 is placed at the lower end of the motor, and the device is installed as a whole by passing the stud through the first mounting hole 3;

[0025] In the process of use, the ventilation hole 9 and the open air adjusting hole 10 can quickly exchange heat in the motor, and the high-temperature dustproof cotton in the first slot 8 above and below the second fixed ring 7 can block the dust in the ventilation hole 9 and the open air adjusting hole 10 during heat exchange, thus solving the problem that the closed structure of the outer rotating permanent magnet motor is not convenient for heat dissipation during dust prevention.

[0026] Through the above steps, the heat exchange in the motor can be quickly carried out through the ventilation hole 9 and the open air adjusting hole 10, and the dust in the ventilation hole 9 and the open air adjusting hole 10 during the heat exchange can be blocked through the high-temperature-resistant dustproof cotton on the first groove body 8 of the second fixing ring 7, thereby solving the problem that the closed structure of the external permanent magnet motor is not convenient for heat dissipation during dust prevention.

[0027] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A motor lower end cover convenient for heat dissipation and dust prevention, comprising a fixed tube (1); characterized in that: The upper end of the fixed pipe (1) is provided with a first fixed ring (5); the upper end of the first fixed ring (5) is fixedly connected with a second fixed ring (7); the upper and lower ends of the second fixed ring (7) are provided with first groove bodies (8); the upper and lower ends of the first groove bodies (8) are provided with ventilation holes (9) and air opening adjusting holes (10) in a penetrating manner.

2. The motor lower end cover convenient for heat dissipation and dust prevention according to claim 1, characterized in that: The arc-shaped outer wall of the fixed pipe (1) is provided with a fixed hole (4) in a penetrating manner; the lower end of the fixed pipe (1) is fixedly connected with a connecting disc (2).

3. The motor lower end cover convenient for heat dissipation and dust prevention according to claim 2, characterized in that: The upper and lower ends of the connecting disc (2) are provided with first mounting holes (3) which are circular and uniformly distributed; the upper end of the integrated structure formed by the fixed pipe (1) and the first fixed ring (5) is provided with second mounting holes (6) which are circular and uniformly distributed.

4. The motor lower end cover convenient for heat dissipation and dust prevention according to claim 3, characterized in that: The number of the first mounting holes (3) is the same as that of the second mounting holes (6).

5. The motor lower end cover convenient for heat dissipation and dust prevention according to claim 2, characterized in that: The outer wall of the connecting disc (2) is in a convex structure.

6. The motor lower end cover convenient for heat dissipation and dust prevention according to claim 1, characterized in that: The inner wall of the air opening adjusting hole (10) is provided with a groove in an arc surface.

7. The motor lower end cover convenient for heat dissipation and dust prevention according to claim 1, characterized in that: The fixed pipe (1), the connecting disc (2), the first fixed ring (5) and the second fixed ring (7) are all in an all-aluminum alloy structure.

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