Three-phase asynchronous motor with self-noise reduction structure

Abstract

This utility model relates to the field of three-phase asynchronous motor technology and provides a three-phase asynchronous motor with a self-noise reduction structure. It includes a three-phase asynchronous motor body, a mounting base fixedly connected to the bottom of the motor body, a rubber strip at the bottom of the mounting base, an end cap detachably attached to one end of the motor body, the end cap being filled with a first sound-insulating cotton, and a rubber ring fixedly connected to the other side of the end cap. This three-phase asynchronous motor with a self-noise reduction structure reduces noise generated during operation by adding several reinforcing ribs to the surface of the motor body. The first sound-insulating cotton filling the end cap reduces noise transmission and minimizes the impact on the surrounding environment. The rubber ring, in conjunction with the end cap, reduces wear and vibration transmission between the end cap and the motor body. Multiple positioning blocks provide fixation, preventing misalignment and improving noise reduction stability.

Description

Technical Field

[0001] This utility model belongs to the field of three-phase asynchronous motor technology, and in particular relates to a three-phase asynchronous motor with a self-noise reduction structure. Background Technology

[0002] The core working principle of a three-phase asynchronous motor is based on Faraday's law of electromagnetic induction and the theory of rotating magnetic fields. When three-phase AC current is applied to the stator winding, the three-phase currents are out of phase in time (12) 0°, and the resulting magnetic field exhibits continuous rotation characteristics. When the rotor conductor cuts this rotating magnetic field, an induced electromotive force is generated according to the right-hand rule, which in turn forms a closed loop current. The current-carrying conductor is subjected to Ampere force in the magnetic field, forming an electromagnetic torque that drives the rotor to rotate.

[0003] Chinese patent CN220368544U discloses an explosion-proof three-phase asynchronous motor. This technical solution effectively reduces the electrical sparks generated when the motor shaft rotates by covering the outside of the motor output end with an explosion-proof shell and fixing the explosion-proof shell to the motor mounting cover. Furthermore, since a fixing rod is provided in the explosion-proof groove on the explosion-proof shell, the overall structural strength of the explosion-proof shell can be effectively improved, thus effectively improving the safety of the motor during use.

[0004] However, this three-phase asynchronous motor does not have a self-noise reduction structure during use, resulting in high noise levels during operation, which has a certain impact on the surrounding working environment and is therefore detrimental to the motor's operation. Utility Model Content

[0005] This utility model provides a three-phase asynchronous motor with a self-noise reduction structure, aiming to solve the problem that three-phase asynchronous motors do not have a self-noise reduction structure, resulting in high noise during use.

[0006] This utility model is implemented as follows: a three-phase asynchronous motor with a self-noise reduction structure includes a three-phase asynchronous motor body, a mounting base fixedly connected to the bottom of the three-phase asynchronous motor body, a rubber strip provided at the bottom of the mounting base, an end cap detachably provided at one end of the three-phase asynchronous motor body, a first sound insulation cotton filled inside the end cap, and a rubber ring fixedly connected to the other side of the end cap.

[0007] The other end of the three-phase asynchronous motor body is equipped with a barrier cover that can be disassembled and installed by a number of screws. One side of the barrier cover is fully open with a cavity. The inner wall of the cavity is fixedly connected with a second sound insulation cotton. The other end of the barrier cover is open with a serpentine channel that communicates with the inner cavity. The other end of the serpentine channel extends to the side wall of the barrier cover.

[0008] Preferably, the inner wall of the serpentine channel is fixedly connected with a plurality of irregular protrusions, and the plurality of irregular protrusions are evenly distributed along the inner wall of the serpentine channel.

[0009] Preferably, the side wall of the barrier is fixedly connected to an exhaust pipe that covers the outside of the serpentine channel, and a filter screen is fixedly connected inside the exhaust pipe.

[0010] Preferably, a plurality of positioning blocks are fixedly connected to the other side of the first sound insulation cotton, a plurality of openings adapted to the positioning blocks are provided on the rubber ring, and a positioning port adapted to the positioning blocks is provided on one end face of the three-phase asynchronous motor body.

[0011] Preferably, the bottom of the mounting base is provided with a groove for the rubber strip, and both ends of the rubber strip and the groove are provided with mounting holes.

[0012] Preferably, a lifting ring is fixedly connected to the top of the three-phase asynchronous motor body, and a monitoring component is provided on the top of the three-phase asynchronous motor body.

[0013] Preferably, a plurality of reinforcing ribs are fixedly connected to the side wall of the three-phase asynchronous motor body, and the plurality of reinforcing ribs are evenly distributed in a ring along the side wall of the three-phase asynchronous motor body.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a three-phase asynchronous motor with a self-noise reduction structure. By adding several reinforcing ribs to the surface of the three-phase asynchronous motor body, the noise generated during operation is reduced. Furthermore, the end cover is filled with first sound-insulating cotton to reduce noise transmission and minimize the impact on the surrounding environment. Combined with a rubber ring, wear and vibration transmission between the end cover and the three-phase asynchronous motor body are reduced. Multiple positioning blocks are used for fixation to prevent misalignment and improve stability during noise reduction. The rubber strips further reduce vibration transmission after installation, thereby reducing noise generated during operation. The barrier cover blocks wind noise generated by the internal fan of the three-phase asynchronous motor body, and the serpentine channel repeatedly refracts and weakens the noise. This effectively reduces noise during the operation of the three-phase asynchronous motor body, minimizing its impact on the surrounding environment and facilitating its operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the barrier cover and screw in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the middle end cap and the first sound insulation cotton of this utility model;

[0019] Figure 4 This is a schematic diagram of the barrier cover and serpentine channel in this utility model.

[0020] In the diagram: 1. Three-phase asynchronous motor body; 2. Mounting base; 3. Slot; 4. Rubber strip; 5. Mounting hole; 6. Lifting ring; 7. Monitoring component; 8. Reinforcing rib; 9. End cap; 10. First sound insulation cotton; 11. Rubber ring; 12. Positioning block; 13. Barrier cover; 14. Screw; 15. Second sound insulation cotton; 16. Cavity; 17. Serpentine channel; 18. Irregular protrusion; 19. Exhaust pipe; 20. Filter screen. Detailed Implementation

[0021] 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 specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a three-phase asynchronous motor with a self-noise reduction structure, including a three-phase asynchronous motor body 1, a mounting base 2 fixedly connected to the bottom of the three-phase asynchronous motor body 1, a rubber strip 4 provided at the bottom of the mounting base 2, an end cover 9 detachably provided at one end of the three-phase asynchronous motor body 1, a first sound insulation cotton 10 filled inside the end cover 9, a rubber ring 11 fixedly connected to the other side of the end cover 9, and a ventilation dustproof window that can be opened on the surface of the end cover 9.

[0023] The other end of the three-phase asynchronous motor body 1 is equipped with a barrier cover 13 by a number of screws 14. A cavity 16 is fully opened on one side of the barrier cover 13. A second sound insulation cotton 15 is fixedly connected to the inner wall of the cavity 16. A serpentine channel 17 communicating with the inner cavity of the cavity 16 is opened at the other end of the barrier cover 13. The other end of the serpentine channel 17 extends to the side wall of the barrier cover 13.

[0024] The end cover 9 is filled with a first sound insulation cotton 10 to reduce noise transmission and minimize the impact on the surrounding environment. In conjunction with the rubber ring 11, it reduces wear and vibration transmission between the end cover 9 and the three-phase asynchronous motor body 1. The rubber strip 4 further reduces vibration transmission after the three-phase asynchronous motor body 1 is installed, thereby reducing the noise generated during the operation of the three-phase asynchronous motor body 1.

[0025] The shield 13 can block the wind noise generated by the internal fan of the three-phase asynchronous motor body 1 and weaken the noise by repeatedly refracting it through the serpentine channel 17. This effectively reduces noise during the operation of the three-phase asynchronous motor body 1, reduces the impact of the three-phase asynchronous motor body 1 on the surrounding environment, and facilitates the operation and use of the three-phase asynchronous motor body 1.

[0026] Furthermore, several irregular protrusions 18 are fixedly connected to the inner wall surface of the serpentine channel 17, and the multiple irregular protrusions 18 are evenly distributed along the inner wall surface of the serpentine channel 17.

[0027] In this embodiment, multiple irregular protrusions 18 form an irregular wall surface on the inner wall of the serpentine channel 17, which effectively refracts and weakens noise.

[0028] Furthermore, an exhaust pipe 19 is fixedly connected to the side wall of the barrier cover 13, which is covered outside the serpentine channel 17, and a filter screen 20 is fixedly connected inside the exhaust pipe 19.

[0029] In this embodiment, the filter plate 20 prevents air backflow and the occurrence of dust being brought into the cavity 16.

[0030] Furthermore, several positioning blocks 12 are fixedly connected to the other side of the first sound insulation cotton 10, and several through holes adapted to the positioning blocks 12 are opened on the rubber ring 11. A positioning port adapted to the positioning blocks 12 is opened on one end face of the three-phase asynchronous motor body 1.

[0031] In this embodiment, multiple positioning blocks 12 are fixed to prevent the rubber ring 11 from shifting and failing, thereby improving the stability during the noise reduction process.

[0032] Furthermore, the bottom of the mounting base 2 is provided with a groove 3 for the rubber strip 4, and both ends of the rubber strip 4 and the groove 3 are provided with mounting holes 5.

[0033] In this embodiment, the groove 3 limits the rubber strip 4, improving the stability of the rubber strip 4 after installation and preventing the rubber strip 4 from shifting and affecting the noise reduction stability.

[0034] Furthermore, a lifting ring 6 is fixedly connected to the top of the three-phase asynchronous motor body 1, and a monitoring component 7 is provided on the top of the three-phase asynchronous motor body 1.

[0035] In this embodiment, the lifting ring 6 facilitates the transfer and movement of the three-phase asynchronous motor body 1, and the monitoring component 7 monitors the status of the three-phase asynchronous motor body 1 during operation.

[0036] Furthermore, a number of reinforcing ribs 8 are fixedly connected to the side wall of the three-phase asynchronous motor body 1, and the multiple reinforcing ribs 8 are evenly distributed in a ring along the side wall of the three-phase asynchronous motor body 1.

[0037] In this embodiment, several reinforcing ribs 8 are added to the surface of the three-phase asynchronous motor body 1 to reduce the noise generated during operation.

[0038] The working principle and usage process of this utility model are as follows: After installation, several reinforcing ribs 8 are added to the surface of the three-phase asynchronous motor body 1 to reduce noise generated during operation. The end cover 9 is filled with first sound insulation cotton 10 to reduce noise transmission and minimize the impact on the surrounding environment. A rubber ring 11 further reduces wear and vibration transmission between the end cover 9 and the three-phase asynchronous motor body 1. Multiple positioning blocks 12 are used for fixation to prevent misalignment and improve stability during noise reduction. Rubber strips 4 reduce vibration transmission after installation, thereby reducing noise generated during operation. The isolation cover 13 blocks wind noise generated by the internal fan of the three-phase asynchronous motor body 1, and the serpentine channel 17 repeatedly refracts and weakens the noise, effectively reducing noise during operation of the three-phase asynchronous motor body 1.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-phase asynchronous motor with a self-noise reduction structure, comprising a three-phase asynchronous motor body (1), characterized in that: The bottom of the three-phase asynchronous motor body (1) is fixedly connected to a mounting base (2), and a rubber strip (4) is provided at the bottom of the mounting base (2). One end of the three-phase asynchronous motor body (1) is detachably provided with an end cap (9), and the inside of the end cap (9) is filled with a first sound insulation cotton (10). A rubber ring (11) is fixedly connected to the other side of the end cap (9). The other end of the three-phase asynchronous motor body (1) is provided with a barrier cover (13) by a number of screws (14). A cavity (16) is fully opened on one side of the barrier cover (13). A second sound insulation cotton (15) is fixedly connected to the inner wall of the cavity (16). The other end of the barrier cover (13) is provided with a serpentine channel (17) communicating with the inner cavity of the cavity (16). The other end of the serpentine channel (17) extends to the side wall of the barrier cover (13).

2. A three-phase asynchronous motor with a self-noise reduction structure as described in claim 1, characterized in that: The inner wall of the serpentine channel (17) is fixedly connected with several irregular protrusions (18), and the irregular protrusions (18) are evenly distributed along the inner wall of the serpentine channel (17).

3. A three-phase asynchronous motor with a self-noise reduction structure as described in claim 1, characterized in that: The side wall of the barrier cover (13) is fixedly connected to an exhaust pipe (19) that covers the outside of the serpentine channel (17), and a filter screen (20) is fixedly connected inside the exhaust pipe (19).

4. A three-phase asynchronous motor with a self-noise reduction structure as described in claim 1, characterized in that: Several positioning blocks (12) are fixedly connected to the other side of the first sound insulation cotton (10). Several openings adapted to the positioning blocks (12) are opened on the rubber ring (11). A positioning port adapted to the positioning blocks (12) is opened on one end face of the three-phase asynchronous motor body (1).

5. A three-phase asynchronous motor with a self-noise reduction structure as described in claim 1, characterized in that: The bottom of the mounting base (2) is provided with a groove (3) for the rubber strip (4) to fit, and both ends of the rubber strip (4) and the groove (3) are provided with mounting holes (5).

6. A three-phase asynchronous motor with a self-noise reduction structure as described in claim 1, characterized in that: A lifting ring (6) is fixedly connected to the top of the three-phase asynchronous motor body (1), and a monitoring component (7) is provided on the top of the three-phase asynchronous motor body (1).

7. A three-phase asynchronous motor with a self-noise reduction structure as described in claim 1, characterized in that: The side wall of the three-phase asynchronous motor body (1) is fixedly connected with a number of reinforcing ribs (8), and the multiple reinforcing ribs (8) are evenly distributed in a ring along the side wall of the three-phase asynchronous motor body (1).

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