Waterproof three-phase asynchronous motor

Abstract

The utility model provides a waterproof three-phase asynchronous motor, and belongs to the technical field of motors. The problem that a traditional asynchronous motor is prone to causing insulation failure and short-circuit faults and even causing safety accidents in a humid or water immersion environment due to lack of waterproof design is solved. The waterproof three-phase asynchronous motor comprises a casing, a stator chipset, a rotor assembly and a motor shaft, two ends of the casing are provided with a front end cover and a rear end cover, the front end cover and the rear end cover are connected with the casing through bolts, the front end cover is provided with a through hole for the motor shaft to extend out, and the through hole is provided with a bearing for fixing the motor shaft. An annular boss is arranged on the outer surface of the front end cover in the circumferential direction, and a sealing groove is formed in the surface of the annular boss. The sealing structure has the advantage that the sealing performance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and specifically relates to a three-phase waterproof motor. Background Technology

[0002] An asynchronous motor, also known as an induction motor, is an AC motor that converts electromechanical energy into mechanical energy by generating electromagnetic torque through the interaction between the rotating magnetic field in the air gap and the induced current in the rotor windings.

[0003] Three-phase asynchronous motors are mainly used as electric motors to drive various production machinery, such as fans, pumps, compressors, machine tools, light industrial and mining machinery, threshers and crushers in agricultural production, and processing machinery for agricultural and sideline products, etc.

[0004] Traditional asynchronous motors lack waterproof design, making them prone to insulation failure, short circuits, and even safety accidents in humid or water-immersed environments. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a three-phase asynchronous motor with good sealing performance and waterproof properties.

[0006] The objective of this utility model can be achieved through the following technical solution: A waterproof three-phase asynchronous motor, characterized in that it includes a housing, a stator chip assembly, a rotor assembly, and a motor shaft. A front cover and a rear cover are installed at both ends of the housing, and the front cover and the rear cover are connected to the housing by bolts. The front cover has a through hole for the motor shaft to extend out, and a bearing for fixing the motor shaft is installed in the through hole. A ring-shaped boss is circumferentially provided on the outer surface of the front cover, and a sealing groove is formed on the surface of the ring-shaped boss. A rubber sealing gasket is embedded in the sealing groove. A waterproof component for waterproofing is provided on the front cover. The waterproof component has a waterproof cover plate, which is sleeved on the motor shaft. The waterproof cover plate abuts against the ring-shaped boss and is connected to the front cover by bolts. A plug unit is provided on the side of the waterproof cover plate.

[0007] In the aforementioned waterproof three-phase asynchronous motor, the plug unit has a fixing ring and a sealing ring. The fixing ring is installed and fixed in the through hole of the front cover. The upper surface of the sealing ring has several sealing rings that serve a sealing function. The front cover has an annular groove for installing the sealing ring.

[0008] In the aforementioned waterproof three-phase asynchronous motor, the sealing ring is made of an elastic material.

[0009] Compared with existing technologies, this waterproof three-phase asynchronous motor has excellent waterproof performance, which can effectively prevent moisture from corroding the internal components of the motor, reduce problems such as insulation aging and metal corrosion caused by moisture, thereby extending the service life of the motor and reducing the user's equipment replacement costs. Attached Figure Description

[0010] Figure 1 This is a 3D view of a waterproof three-phase asynchronous motor.

[0011] Figure 2 This is a cross-sectional view of a waterproof three-phase asynchronous motor.

[0012] Figure 3 This is a partial sectional view of this waterproof three-phase asynchronous motor.

[0013] In the diagram, 1. Housing; 2. Motor shaft; 3. Front cover; 4. Rear cover; 5. Bolt; 6. Bearing; 7. Annular boss; 8. Sealing groove; 9. Rubber sealing gasket; 10. Waterproof cover plate; 11. Plug unit; 12. Fixing ring; 13. Sealing ring; 14. Sealing ring; 15. Annular groove. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 , Figure 2 , Figure 3As shown, this waterproof three-phase asynchronous motor includes a housing 1, a stator chip assembly, a rotor assembly, and a motor shaft 2. A front end cover 3 and a rear end cover 4 are installed at both ends of the housing 1, and the front end cover 3 and the rear end cover 4 are connected to the housing 1 by bolts 5. This connection method is not only simple in structure but also ensures the stability of the connection, effectively preventing the end covers from loosening due to vibration or other reasons during motor operation. The front end cover 3 has a through hole for the motor shaft 2 to extend from, and a bearing 6 for fixing the motor shaft 2 is installed in this through hole. A ring-shaped boss 7 is circumferentially provided on the outer surface of the front end cover 3, and the surface of the ring-shaped boss 7 has... A sealing groove 8 is provided, in which a rubber sealing gasket 9 is embedded. A waterproof component for waterproofing is provided on the front cover 3. The waterproof component has a waterproof cover plate 10, which is sleeved on the motor shaft 2. The waterproof cover plate 10 abuts against the annular boss 7 and is connected to the front cover 3 by bolts 5. A plug unit 11 is provided on the side of the waterproof cover plate 10. The waterproof cover plate 10 is sleeved on the motor shaft 2 and abuts against the annular boss 7. It is connected to the front cover 3 by bolts 5, so that a tight seal is formed between the waterproof cover plate 10 and the front cover 3, which further enhances the waterproof effect. The waterproof cover plate 10 can effectively cover the opening area on the front cover 3 to prevent water from directly entering the motor.

[0016] To elaborate further, the plug unit 11 has a fixing ring 12 and a sealing ring 13. The fixing ring 12 is installed and fixed in the through hole of the front cover 3, providing a stable mounting base for the plug unit 11 and ensuring that the plug unit 11 will not shake during motor operation. The upper surface of the sealing ring 13 has several sealing rings 14 that serve a sealing function. The front cover 3 has an annular groove 15 for the sealing ring 13 to be installed. When the sealing ring 13 is installed in the annular groove 15, the sealing rings 14 are in close contact with the wall of the annular groove 15, forming multiple sealing lines to effectively prevent moisture from seeping into the motor from the connection between the plug unit 11 and the front cover 3.

[0017] To elaborate further, the sealing ring 14 is made of an elastic material.

[0018] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0019] Although this document frequently uses terms such as housing 1, motor shaft 2, front cover 3, rear cover 4, bolt 5, bearing 6, annular boss 7, sealing groove 8, rubber sealing gasket 9, waterproof cover 10, plug unit 11, fixing ring 12, sealing ring 13, sealing ring 14, and annular groove 15, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A waterproof three-phase asynchronous motor, characterized in that, The assembly includes a housing (1), a stator chip assembly, a rotor assembly, and a motor shaft (2). The housing (1) has a front end cover (3) and a rear end cover (4) mounted at both ends. The front end cover (3) and the rear end cover (4) are connected to the housing (1) by bolts (5). The front end cover (3) has a through hole for the motor shaft (2) to extend from it, and a bearing (6) for fixing the motor shaft (2) is installed in the through hole. A ring-shaped boss (7) is circumferentially provided on the outer surface of the front end cover (3). A sealing groove (8) is provided on the surface of the annular boss (7), and a rubber sealing gasket (9) is embedded in the sealing groove (8). A waterproof component for waterproofing is provided on the front end cover (3). The waterproof component has a waterproof cover plate (10), and the waterproof cover plate (10) is sleeved on the motor shaft (2). The waterproof cover plate (10) abuts against the annular boss (7) and is connected to the front end cover (3) by bolts (5). A plug unit (11) is provided on the side of the waterproof cover plate (10).

2. A waterproof three-phase asynchronous motor according to claim 1, characterized in that, The plug unit (11) has a fixing ring (12) and a sealing ring (13). The fixing ring (12) is installed in the through hole of the front cover (3) and fixed. The upper surface of the sealing ring (13) has several sealing rings (14) that play a sealing role. The front cover (3) has an annular groove (15) for the sealing ring (13) to be installed.

3. A waterproof three-phase asynchronous motor according to claim 2, characterized in that, The sealing ring (14) is made of an elastic material.

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