Three-phase asynchronous motor with protection structure

Abstract

The utility model discloses a three-phase asynchronous motor with a protection structure, which relates to the technical field of three-phase asynchronous motors and comprises a shielding mechanism, a buffer mechanism is fixedly connected to the inner side of the shielding mechanism, a body mechanism is fixedly connected to one side of the shielding mechanism, and the shielding mechanism comprises a fixing frame. The right side of the fixing frame is fixedly connected with a buffering mechanism, the right end of the buffering mechanism is fixedly connected with an annular connecting frame, and the inner side of the annular connecting frame is fixedly connected with a dustproof net. The connecting rods and the rubber rings at the two ends move towards the middle of the hollow rod to compress air, the elastic balls are driven to move through the vent holes, so that the buffering effect is enhanced, the purpose of improving the protection strength of the asynchronous motor is achieved, the rotor center shaft drives the cooling fan to rotate, the temperature in the motor body is reduced, and the service life of the motor is prolonged. And the heat dissipation cover wraps the internal parts, so that the protection effect of the three-phase asynchronous motor is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of three-phase asynchronous motors, in particular to a three-phase asynchronous motor with a protection structure. Background Art

[0002] The three-phase asynchronous motor is a type of induction motor. It is a type of motor that is powered by a 380V three-phase alternating current. Since the rotor and stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip rate, so it is called a three-phase asynchronous motor. The speed of the rotor of the three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor winding generates electromotive force and current due to the relative motion between the rotor and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion.

[0003] The Chinese patent application publication number CN217642991U discloses a three-phase asynchronous motor with a heat dissipation port protection structure. The utility model sets a rotating closed block at the position where the heat dissipation port is opened on the inner side of the heat dissipation guard, and sets the rotation and adjustment method of the closed block to an elastic snap-fit ​​structure. While the closed block is protected and stored, it also ensures the convenience of use. By setting a side guard plate, the side guard plate has a protective effect on the outer side of the guide groove. By evenly arranging a number of heat dissipation strips in a ring shape on the inner surface of the heat dissipation guard, the heat dissipation effect of the asynchronous motor body is improved, and the energy transmission is faster.

[0004] In order to solve the problem of poor heat dissipation of the asynchronous motor in the above-mentioned technical solution, the existing technology adopts a method of adding heat dissipation strips in the heat dissipation cover. However, there is still a problem that debris is easily entered at the opening of the heat dissipation cover, which leads to the problem of poor protection effect of the asynchronous motor. Utility Model Content

[0005] The purpose of the utility model is to provide a three-phase asynchronous motor with a protection structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A three-phase asynchronous motor with a protective structure comprises a shielding mechanism, a buffer mechanism is fixedly connected to the inner side of the shielding mechanism, and a main body mechanism is fixedly connected to one side of the shielding mechanism.

[0008] The shielding mechanism comprises a fixing frame, the right side of the fixing frame is fixedly connected to the buffer mechanism, the right end of the buffer mechanism is fixedly connected to an annular connecting frame, and the inner side of the annular connecting frame is fixedly connected to a dustproof net.

[0009] A further improvement of the technical solution of the utility model is that the buffer mechanism includes a connecting plate, the right end of the connecting plate is fixedly connected to a connecting rod, the left end of the connecting rod is sleeved with a sponge pad, and the sponge pad can increase the buffering effect of the connecting plate, thereby improving the buffering strength.

[0010] A further improvement of the technical solution of the utility model is that the left side of the sponge pad is fixedly connected to the right side of the connecting plate, the right end of the connecting rod is fixedly connected to a rubber ring, the outside of the rubber ring is sleeved with a hollow rod, and the rubber ring can increase the friction between the rubber ring and the inner wall of the hollow rod, thereby achieving the purpose of enhancing the buffering effect.

[0011] A further improvement of the technical solution of the utility model is that both ends of the hollow rod are sleeved on the outside of the connecting rod, a sandwich layer is provided inside the hollow rod, an elastic ball is provided inside the sandwich layer, the air drives the elastic ball to shake, and the elastic ball is deformed, thereby improving the buffering strength.

[0012] A further improvement of the technical solution of the utility model is that a vent hole is opened on the inner wall of the hollow rod, and a buffer pad is fixedly connected to the inner wall of the hollow rod. The buffer pad is made of rubber material, so that when subjected to external impact, the impact force can be buffered.

[0013] A further improvement of the technical solution of the utility model is that the main body mechanism includes a motor body, the outer surface of the motor body is fixedly connected to the inner wall of the fixing frame, the bottom of the motor body is fixedly connected to a base, and the base is in contact with the ground, thereby fixing the position of the motor body and ensuring the stability of the motor body.

[0014] A further improvement of the technical solution of the utility model is that a rotor central axis is arranged inside the motor body, a cooling fan is arranged at the tail end of the rotor central axis, and the rotation of the rotor central axis can drive the cooling fan to rotate, thereby dissipating heat inside the motor body.

[0015] A further improvement of the technical solution of the utility model is that a heat dissipation cover is provided at the rear end of the motor body, heat dissipation holes are opened on the surface of the heat dissipation cover, and the heat dissipation cover wraps the rear end of the motor body, thereby achieving the effect of protecting the motor body.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a three-phase asynchronous motor with a protective structure. When the asynchronous motor collides, the dust-proof net and the ring-shaped connecting frame are impacted, and the impact force is transmitted to the connecting plates at both ends, driving the connecting rod and the rubber ring to move toward the middle of the hollow rod, thereby compressing the air inside the hollow rod, and driving the elastic ball to move through the vent hole, thereby enhancing the buffering effect, thereby shortening the moving distance of the ring-shaped connecting frame and the dust-proof net, reducing the impact force on the asynchronous motor, and achieving the purpose of improving the protection strength of the asynchronous motor.

[0018] 2. The utility model provides a three-phase asynchronous motor with a protective structure. When the three-phase asynchronous motor is running, the central axis of the rotor rotates, which can drive the heat dissipation fan to rotate, so that the heat inside the motor body is diffused through the heat dissipation holes, thereby reducing the temperature inside the motor body to improve the heat dissipation strength of the motor body. At the same time, the heat dissipation cover wraps the heat dissipation fan and the central axis of the rotor to protect the parts, thereby achieving the enhanced protection effect of the three-phase asynchronous motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the shielding mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the buffer mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the main body structure of the utility model.

[0023] In the figure: 1. shielding mechanism; 11. fixing frame; 12. ring-shaped connecting frame; 13. dust-proof net; 2. buffer mechanism; 21. connecting plate; 22. connecting rod; 23. sponge pad; 24. rubber ring; 25. hollow rod; 26. interlayer; 27. elastic ball; 28. vent; 29. ​​buffer pad; 3. main body mechanism; 31. motor body; 32. base; 33. rotor central axis; 34. cooling fan; 35. cooling cover; 36. cooling hole. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the embodiments:

[0025] Example 1

[0026] like Figure 1-4As shown, the utility model provides a three-phase asynchronous motor with a protective structure, including a shielding mechanism 1, a buffer mechanism 2 is fixedly connected to the inner side of the shielding mechanism 1, a main body mechanism 3 is fixedly connected to one side of the shielding mechanism 1, the shielding mechanism 1 includes a fixing frame 11, the right side of the fixing frame 11 is fixedly connected to the buffer mechanism 2, the right end of the buffer mechanism 2 is fixedly connected to an annular connecting frame 12, and a dustproof net 13 is fixedly connected to the inner side of the annular connecting frame 12;

[0027] Specifically, the dustproof net 13 and the annular connecting frame 12 are parallel to the heat dissipation cover 35, so as to block impurities and prevent the surface of the heat dissipation fan 34 from being covered with dust. At the same time, when debris collides with the three-phase asynchronous motor, the dustproof net 13 and the annular connecting frame 12 are impacted, and the impact force is transmitted to the buffer mechanism 2, which is alleviated by the buffer mechanism 2, thereby reducing the impact force on the three-phase asynchronous motor and preventing debris from entering the heat dissipation cover, thereby improving the protection effect of the asynchronous motor.

[0028] Example 2

[0029] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the buffer mechanism 2 includes a connecting plate 21, the right end of the connecting plate 21 is fixedly connected to a connecting rod 22, the left end of the connecting rod 22 is sleeved with a sponge pad 23, the left side of the sponge pad 23 is fixedly connected to the right side of the connecting plate 21, the right end of the connecting rod 22 is fixedly connected to a rubber ring 24, the outside of the rubber ring 24 is sleeved with a hollow rod 25, both ends of the hollow rod 25 are sleeved on the outside of the connecting rod 22, an interlayer 26 is provided inside the hollow rod 25, an elastic ball 27 is provided inside the interlayer 26, a vent hole 28 is provided on the inner wall of the hollow rod 25, and a buffer pad 29 is fixedly connected to the inner wall of the hollow rod 25;

[0030] Specifically, after the right end of the buffer mechanism 2 is subjected to impact force, the connecting plates 21 at both ends of the hollow rod 25 are forced to drive the connecting rod 22 and the rubber ring 24 to move toward the middle of the hollow rod 25, thereby compressing the air inside the hollow rod 25. The gas in the hollow rod 25 is squeezed and enters the interlayer 26 through the vent 28, thereby driving the elastic ball 27 to move. If the impact force is large, the sponge pads 23 at both ends and the buffer pad 29 inside the hollow rod 25 can further buffer the impact force, thereby enhancing the buffering effect, thereby shortening the moving distance of the annular connecting frame 12 and the dustproof net 13, and reducing the impact force on the asynchronous motor.

[0031] Example 3

[0032] like Figure 1-4As shown, on the basis of embodiment 1, the utility model provides a technical solution: preferably, the main body mechanism 3 includes a motor body 31, the outer surface of the motor body 31 is fixedly connected to the inner wall of the fixing frame 11, the bottom of the motor body 31 is fixedly connected to a base 32, a rotor central axis 33 is arranged inside the motor body 31, a heat dissipation fan 34 is arranged at the tail end of the rotor central axis 33, a heat dissipation cover 35 is arranged at the tail end of the motor body 31, and a heat dissipation hole 36 is opened on the surface of the heat dissipation cover 35;

[0033] Specifically, when the three-phase asynchronous motor is running, the rotor central axis 33 rotates, which can drive the cooling fan 34 to rotate, thereby diffusing the heat inside the motor body 31 through the cooling holes 36, thereby reducing the temperature inside the motor body 31 to improve the heat dissipation intensity of the motor body 31.

[0034] The working principle of the three-phase asynchronous motor with a protective structure is described in detail below.

[0035] like Figure 1-4 As shown, when the three-phase asynchronous motor is running, the heat dissipation fan 34 is driven to rotate through the rotor central axis 33 to diffuse the heat in the motor body 31. When the tail end of the three-phase asynchronous motor is impacted, the connecting plates 21 at both ends of the hollow rod 25 are driven by force to drive the connecting rod 22 and the rubber ring 24 to move toward the middle of the hollow rod 25, enter the interlayer 26 through the vent 28, and then drive the elastic ball 27 to move, so as to buffer the impact force and protect the three-phase asynchronous motor.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A three-phase asynchronous motor with a protective structure, comprising a shielding mechanism (1), characterized in that: The inner side of the shielding mechanism (1) is fixedly connected to a buffer mechanism (2), and one side of the shielding mechanism (1) is fixedly connected to a main body mechanism (3); The shielding mechanism (1) comprises a fixing frame (11), the right side of the fixing frame (11) is fixedly connected to the buffer mechanism (2), the right end of the buffer mechanism (2) is fixedly connected to an annular connecting frame (12), and the inner side of the annular connecting frame (12) is fixedly connected to a dustproof net (13).

2. The three-phase asynchronous motor with a protective structure according to claim 1, characterized in that: The buffer mechanism (2) comprises a connecting plate (21), the right end of the connecting plate (21) is fixedly connected to a connecting rod (22), and the left end of the connecting rod (22) is sleeved with a sponge pad (23).

3. The three-phase asynchronous motor with a protective structure according to claim 2, characterized in that: The left side of the sponge pad (23) is fixedly connected to the right side of the connecting plate (21), the right end of the connecting rod (22) is fixedly connected to a rubber ring (24), and the outside of the rubber ring (24) is sleeved with a hollow rod (25).

4. The three-phase asynchronous motor with a protective structure according to claim 3, characterized in that: Both ends of the hollow rod (25) are sleeved on the outside of the connecting rod (22), an interlayer (26) is provided inside the hollow rod (25), and an elastic ball (27) is provided inside the interlayer (26).

5. The three-phase asynchronous motor with a protective structure according to claim 4, characterized in that: A vent hole (28) is provided on the inner wall of the hollow rod (25), and a buffer pad (29) is fixedly connected to the inner wall of the hollow rod (25).

6. The three-phase asynchronous motor with a protective structure according to claim 1, characterized in that: The main body mechanism (3) comprises a motor body (31), the outer surface of the motor body (31) is fixedly connected to the inner wall of the fixing frame (11), and the bottom of the motor body (31) is fixedly connected to a base (32).

7. The three-phase asynchronous motor with a protective structure according to claim 6, characterized in that: A rotor central axis (33) is arranged inside the motor body (31), and a heat dissipation fan (34) is arranged at the tail end of the rotor central axis (33).

8. The three-phase asynchronous motor with a protective structure according to claim 6, characterized in that: A heat dissipation cover (35) is provided at the rear end of the motor body (31), and heat dissipation holes (36) are provided on the surface of the heat dissipation cover (35).

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