Noise reduction type three-phase asynchronous motor

Abstract

The utility model discloses a noise reduction type three-phase asynchronous motor, which comprises a shell, a motor body and a liquid storage tank, a handle is fixedly mounted in the middle of the upper end of the shell, a rear cover is mounted on the right side of the shell, a screw is in threaded connection with the right side of the shell, and the motor body is mounted in the shell. Liquid storage grooves are formed in the upper, lower, front and rear sides of the shell, a motor rotating shaft is fixedly connected to the middle of the left side of the motor body, sound absorption cotton is fixedly installed on the outer side of the motor body, and sound insulation cotton is fixedly connected to the upper, lower, front and rear right sides of the sound absorption cotton; the upper end of the liquid inlet is in threaded connection with a cover, and the middle of the lower end of the shell is fixedly connected with a liquid outlet. According to the noise reduction type three-phase asynchronous motor, noise reduction can be conveniently carried out on the motor body, the cooling liquid and the heat dissipation plate can carry out heat dissipation on the motor body at the same time, and the motor body can be detached from the interior of the shell.

Description

Technical Field

[0001] The utility model relates to the technical field related to three-phase asynchronous motors, in particular to a noise reduction type three-phase asynchronous motor. Background Art

[0002] The three-phase asynchronous motor is a type of induction motor, which is powered by 380V three-phase AC current (phase difference of 120 degrees) at the same time. 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 winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion.

[0003] The existing noise reduction three-phase asynchronous motor has the problem that it is inconvenient to inspect the internal motor body by removing the outer shell. For example, the Chinese utility model patent with the authorization announcement number CN213906466U discloses a noise reduction three-phase asynchronous motor, which can reduce noise from the source, but this device is not convenient to inspect the internal motor body by removing the outer shell. Therefore, we propose a noise reduction three-phase asynchronous motor to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a noise reduction three-phase asynchronous motor to solve the problem that it is inconvenient to inspect the internal motor body by disassembling the shell of the existing noise reduction three-phase asynchronous motor mentioned in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a noise reduction type three-phase asynchronous motor, comprising a housing, a motor body and a liquid storage tank, a handle is fixedly installed in the middle of the upper end of the housing, a rear cover is installed on the right side of the housing, a screw is threadedly connected to the right side of the housing, a limit block is fixedly installed inside the right side of the housing, and a leg is fixedly installed on the upper surface of the bottom end of the housing;

[0006] The motor body is installed inside the shell, and liquid storage tanks are opened on the upper and lower front and rear sides of the shell, the motor shaft is fixedly connected to the middle of the left side of the motor body, and sound-absorbing cotton is fixedly installed on the outside of the motor body, and sound-absorbing cotton is fixedly connected to the upper and lower front and rear right sides of the sound-absorbing cotton, and heat dissipation plates are fixedly connected to the middle of the upper and lower ends of the sound-absorbing cotton, a liquid inlet is fixedly installed in the middle of the upper end of the shell, and a cover is threadedly connected to the upper end of the liquid inlet, and a liquid outlet is fixedly connected to the middle of the lower end of the shell.

[0007] Preferably, the upper and lower ends of the rear cover are fixedly connected to the housing by right screws.

[0008] Preferably, the left sides of the upper and lower ends of the rear cover are in contact with the right side of the limiting block.

[0009] Preferably, the upper surface of the supporting leg is in contact with the lower surface of the sound insulation cotton.

[0010] Preferably, the left end of the rotating shaft in the middle of the liquid storage tank passes through the middle of the right side of the sound-absorbing cotton and the sound-insulating cotton.

[0011] Preferably, the motor shaft passes through the sound-absorbing cotton and the middle of the left side of the shell.

[0012] Preferably, a cover is threadedly connected to the bottom end of the liquid outlet.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the noise reduction type three-phase asynchronous motor is convenient for reducing the noise of the motor body, the coolant and the heat sink can dissipate the heat of the motor body at the same time, and the motor body can be removed from the inside of the housing;

[0014] 1. The outer surface of the motor body is fixedly installed with sound-absorbing cotton, and the outer layer of the sound-absorbing cotton is fixedly installed with sound-insulating cotton. The sound-absorbing cotton absorbs the noise generated when the motor body is running, and the sound-insulating cotton isolates the noise, which is convenient for reducing the noise of the motor body;

[0015] 2. A heat sink is fixedly installed in the middle of the upper and lower ends of the sound insulation cotton. A liquid storage tank is opened on the front, back, left and right sides of the shell. A liquid inlet is fixedly connected to the middle of the upper end of the shell. The coolant is poured into the liquid storage tank from the liquid inlet. The coolant and the heat sink can dissipate heat to the motor body at the same time;

[0016] 3. The rear cover is fixedly connected to the housing by screws, the motor shaft passes through the left side of the housing, and the motor body is placed above the legs. By removing the rear cover from the housing, the motor body can be removed from the inside of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0018] Figure 2 It is a side view cutaway structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the utility model in a top view and cutaway structure;

[0020] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. Shell; 2. Handle; 3. Back cover; 4. Screw; 5. Limit block; 6. Leg; 7. Motor body; 8. Liquid storage tank; 9. Motor shaft; 10. Sound-absorbing cotton; 11. Sound-proof cotton; 12. Heat sink; 13. Liquid inlet; 14. Cover; 15. Liquid outlet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a noise reduction three-phase asynchronous motor, including a shell 1, a handle 2, a back cover 3, a screw 4, a limit block 5, a leg 6, a motor body 7, a liquid storage tank 8, a motor shaft 9, sound-absorbing cotton 10, sound-proof cotton 11, a heat sink 12, a liquid inlet 13, a cover 14 and a liquid outlet 15.

[0024] A handle 2 is fixedly installed on the upper end of the shell 1. The shell 1 and the internal motor body 7 can be carried by pulling the handle 2. The right side wall of the shell 1 is an open structure. A rear cover 3 is installed on the right side of the shell 1. The upper two ends of the rear cover 3 are provided with raised blocks. The raised blocks on the rear cover 3 are fixedly connected to the shell 1 by screws 4. By screwing the screws 4, the rear cover 3 can be removed or installed from the shell 1. A limit block 5 is fixedly installed inside the right end of the shell 1. The right side of the limit block 5 is in contact with the left side of the raised blocks at the upper and lower ends of the rear cover 3. The limit block 5 is used to limit the installation position of the rear cover 3.

[0025] A support leg 6 is fixedly installed on the upper surface of the bottom end of the shell 1, and a motor body 7 is installed inside the shell 1. The motor body 7 is placed on the support leg 6. A liquid storage tank 8 is opened in the upper and lower front and rear side walls of the shell 1. A liquid inlet 13 is fixedly installed in the middle of the upper end of the shell 1. A cover 14 is threadedly connected to the upper end of the liquid inlet 13, and a liquid outlet 15 is fixedly connected to the middle of the lower end of the shell 1. The bottom end of the liquid outlet 15 is threadedly connected to the cover 14. The bottom end of the liquid inlet 13 and the upper end of the liquid outlet 15 are the same as the liquid storage tank 8. Unscrew the cover 14 on the upper end of the liquid inlet 13, pour the coolant into the liquid storage tank 8, and then screw on the cover 14 on the upper end of the liquid inlet 13. The coolant can cool the interior of the shell 1, and the expired coolant can be discharged from the liquid outlet 15. The left end of the motor body 7 is fixedly connected to the motor shaft 9, a hole is opened in the middle of the left side of the shell 1, the left end of the motor shaft 9 passes through the hole opened on the left side of the shell 1, and the outer side of the motor body 7 is fixedly connected to the sound-absorbing cotton 10, and the sound-absorbing cotton 10 is fixedly installed with sound insulation cotton 11 on the upper, lower, front, and right sides. The middle of the upper and lower ends of the sound insulation cotton 11 is fixedly connected with a heat sink 12, and the left side of the shell 1 is fixedly installed with a heat sink 12 on the upper, lower, front, and back sides. The sound-absorbing cotton 10 absorbs noise, the sound insulation cotton 11 isolates noise, and the heat sink 12 can reduce the temperature of the motor body 7. The above completes a series of operations of the noise reduction type three-phase asynchronous motor. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0026] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A noise-reducing three-phase asynchronous motor, comprising a housing (1), a motor body (7) and a liquid storage tank (8), characterized in that: A handle (2) is fixedly mounted on the middle part of the upper end of the shell (1), a rear cover (3) is mounted on the right side of the shell (1), a screw (4) is threadedly connected to the right side of the shell (1), a limit block (5) is fixedly mounted inside the right side of the shell (1), and a support leg (6) is fixedly mounted on the upper surface of the bottom end of the shell (1); A motor body (7) is installed inside the shell (1), and liquid storage tanks (8) are provided on the upper and lower front and rear sides of the shell (1); a motor shaft (9) is fixedly connected to the middle of the left side of the motor body (7), and a sound-absorbing cotton (10) is fixedly installed on the outside of the motor body (7); sound-insulating cotton (11) is fixedly connected to the upper and lower front and rear right sides of the sound-absorbing cotton (10); a heat sink (12) is fixedly connected to the middle of the upper and lower ends of the sound-insulating cotton (11); a liquid inlet (13) is fixedly installed in the middle of the upper end of the shell (1), and a cover (14) is threadedly connected to the upper end of the liquid inlet (13); and a liquid outlet (15) is fixedly connected to the middle of the lower end of the shell (1).

2. A noise reduction three-phase asynchronous motor according to claim 1, characterized in that: The right screws (4) at the upper and lower ends of the rear cover (3) are fixedly connected to the housing (1).

3. A noise reduction three-phase asynchronous motor according to claim 1, characterized in that: The left sides of the upper and lower ends of the rear cover (3) are in contact with the right side of the limit block (5).

4. The noise reduction three-phase asynchronous motor according to claim 1, characterized in that: The upper surface of the supporting leg (6) is in contact with the lower surface of the sound insulation cotton (11).

5. The noise reduction three-phase asynchronous motor according to claim 1, characterized in that: The left end of the rotating shaft in the middle of the liquid storage tank (8) passes through the middle of the right side of the sound-absorbing cotton (10) and the sound-insulating cotton (11).

6. The noise reduction three-phase asynchronous motor according to claim 1, characterized in that: The motor shaft (9) passes through the sound-absorbing cotton (10) and the middle portion of the left side of the housing (1).

7. The noise reduction three-phase asynchronous motor according to claim 1, characterized in that: The bottom end of the liquid outlet (15) is threadedly connected to a cover (14).

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