Nuclear-grade motor

Abstract

The utility model discloses a nuclear grade motor, relates to motor technical field, including motor main part, shielding inner cover and filter, the bottom end of motor main part is equipped with the fixed sleeve, and the fixed sleeve one side far away from motor main part is equipped with the bottom casing, the shielding inner cover is provided the both sides of motor main part inner wall, the filter is equipped with the filter. Heat dissipation fins are arranged on the outer surface of the motor body, and the filter is arranged on the sides, away from the fixing sleeve, of the heat dissipation fins. The shielding inner cover is arranged on the inner wall of the motor main body, so that after radiation penetrates through the motor main body and enters the motor main body, electronic elements in the motor main body are blocked by the shielding inner cover, the radiation is prevented from influencing the electronic elements, meanwhile, the circulating pipe is arranged in the motor main body, and after cooling liquid enters the circulating pipe through the liquid inlet pipe, the cooling liquid is cooled. And heat generated by operation of the stator and the rotor in the motor main body is taken away by the cooling liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a nuclear-grade electric motor. Background Art

[0002] Nuclear-grade motors refer to motors used in nuclear power plants or other nuclear facilities. These motors need to meet extremely high safety standards and performance requirements to ensure normal operation in extreme radiation and high temperature and high pressure environments. Nuclear-grade motors usually use special materials and design methods, but when they are used, when the motor is constantly running, due to the location, it often causes the temperature inside the motor to be too high, and it is not easy to dissipate heat. When it is in a high temperature environment for a long time, it often causes the internal components of the motor to malfunction. Therefore, a nuclear-grade motor is needed.

[0003] The application number retrieved is: CN200920203946.2, a high-voltage three-phase asynchronous motor for nuclear power plants, which has a service life reliability that meets the requirements of relevant standards and specifications for nuclear power plants, has a simple structure, low cost, and is easy to promote.

[0004] However, the existing nuclear motors still have certain defects in actual use: when nuclear motors are used in extreme environments, they will be constantly impacted by nuclear radiation. Since nuclear motors often use air cooling to dissipate heat during the heat dissipation process, the temperature inside the nuclear motor cannot be quickly dissipated. For this reason, we propose a nuclear-grade motor. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a nuclear-grade motor, which aims to improve the problem that when nuclear motors are used in extreme environments, the nuclear motors will be constantly impacted by nuclear radiation. Since the nuclear motors often use air cooling to dissipate heat during the heat dissipation process, the temperature inside the nuclear motors cannot be quickly dissipated.

[0006] The utility model implements a nuclear-grade motor through the following technical scheme, comprising a motor body, a shielding inner cover and a filter, wherein a fixed sleeve is installed at the bottom end of the motor body, and a bottom shell is arranged on the side of the fixed sleeve away from the motor body, the shielding inner cover is arranged on both sides of the inner wall of the motor body, and the outer surface of the motor body is provided with cooling fins, and the filter is arranged on the side of the cooling fins away from the fixed sleeve.

[0007] Furthermore, a liquid inlet pipe is provided on the outer surface of the fixed sleeve, and a liquid outlet pipe is provided on the right side of the liquid inlet pipe, a control unit is provided on the side of the liquid outlet pipe away from the liquid inlet pipe, and the control unit includes a sealing base and a sealing shell, and a sealing shell is provided on the side of the sealing shell away from the motor body, and a detachable structure is formed between the sealing base and the sealing shell through a card slot.

[0008] Furthermore, a connecting shaft is arranged at the center of the inner wall of the fixed sleeve, and a first bearing is engaged with the outer surface of the connecting shaft, and a cooling fan is arranged below the first bearing.

[0009] Furthermore, a stator is provided on a side of the shielding inner cover away from the motor body, and a circulation pipe is placed at the center of the two groups of stators, and the liquid inlet pipe, the liquid outlet pipe and the circulation pipe form a detachable structure through buckles.

[0010] Furthermore, a rotor is arranged at the center of the stator, and a fixing groove is arranged at the center of the rotor, a rotating shaft is placed at the center of the fixing groove, and the connecting shaft and the rotating shaft form a detachable structure through threads.

[0011] Furthermore, a sealing cover is placed on the outer surface of the rotating shaft, and a connecting seat is provided on the side of the sealing cover away from the rotating shaft, a connecting hole is provided on the outer surface of the connecting seat, and a second bearing is engaged at the center of the sealing cover, and a power cord is provided below the second bearing.

[0012] Furthermore, a positioning hole is provided on the outer surface of the sealing cover, and a nameplate is installed on the outer surface of the heat dissipation fin.

[0013] The utility model provides a nuclear-grade motor, which has the following beneficial effects:

[0014] The inner wall of the motor is provided with a shielding inner cover, so when the radiation penetrates the outer shell of the motor body, the shielding inner cover blocks the radiation entering the motor body, thereby preventing the radiation from affecting the electronic components inside the motor body. The circulating pipe arranged between the stator and the stator, the coolant enters the circulating pipe through the liquid inlet pipe, so that the coolant continuously exchanges heat, thereby reducing the temperature inside the motor body. The stator drives the cooling fan to rotate during the rotation process, and the cooling fan dissipates the heat of the coiled circulating pipe. While dissipating the heat, it is also used to stir the air inside the motor body, so that the hot air can contact the circulating pipe, thereby quickly cooling down. At the same time, the filter is also used to block the specific frequency generated by the motor body, and is also used to block part of the radiation generated by the external environment. The specific contents are as follows:

[0015] A fixed sleeve is installed at the bottom end of the motor body, and a bottom shell is arranged on the side of the fixed sleeve away from the motor body, a shielding inner cover is arranged on both sides of the inner wall of the motor body, and a cooling fin is arranged on the outer surface of the motor body, and a filter is arranged on the side of the cooling fin away from the fixed sleeve, a liquid inlet pipe is arranged on the outer surface of the fixed sleeve, and a liquid outlet pipe is arranged on the right side of the liquid inlet pipe, a control unit is arranged on the side of the liquid outlet pipe away from the liquid inlet pipe, and the control unit includes a sealing base and a sealing shell, and a sealing shell is arranged on the side of the sealing shell away from the motor body, a detachable structure is formed between the sealing base and the sealing shell through a card slot, a connecting shaft is arranged at the center of the inner wall of the fixed sleeve, and a first bearing is engaged with the outer surface of the connecting shaft, and a cooling fan is arranged below the first bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a nuclear-grade motor of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a motor body of a nuclear-grade motor of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a cooling fan for a nuclear-grade motor of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a circulation tube of a nuclear-grade motor of the utility model;

[0020] Figure 5 This is a schematic structural diagram of a sealing cover of a nuclear-grade motor of the utility model;

[0021] Figure 6 The utility model is a schematic structural diagram of a connecting base of a nuclear-grade motor.

[0022] In the figure: 1. Motor body; 2. Cooling fins; 3. Nameplate; 4. Fixed sleeve; 5. Bottom shell; 6. Connecting seat; 601. Connecting hole; 7. Sealing cover; 701. Positioning hole; 8. Rotating shaft; 9. Power cord; 10. Liquid inlet pipe; 11. Liquid outlet pipe; 12. Sealing base; 13. Sealing outer shell; 14. Connecting shaft; 15. First bearing; 16. Cooling fan; 17. Control unit; 18. Stator; 19. Rotor; 20. Shielding inner cover; 21. Fixed groove; 22. Second bearing; 23. Filter; 24. Circulation pipe. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figure 1-Figure 6As shown, a nuclear-grade motor comprises a motor body 1, a shielding inner cover 20 and a filter 23. A fixing sleeve 4 is installed at the bottom end of the motor body 1, and the fixing sleeve 4 is used to connect the motor body 1 and the bottom shell 5. At the same time, the fixing sleeve 4 is used to extend the length of the motor body 1 without damaging the heat dissipation fins 2 arranged on the outer surface of the motor body 1, and a bottom shell 5 is arranged on the side of the fixing sleeve 4 away from the motor body 1. When the bottom shell 5 and the motor body 1 are fixed, a rubber gasket placed at the center of the bottom shell 5 and the motor body 1 is also used to seal the gap that appears, so as to block water and seal at the same time. The shielding inner cover 20 is arranged on both sides of the inner wall of the motor body 1, wherein the inner wall of the motor body 1 is sleeved with the shielding inner cover 20. Therefore, when the motor is in radiation, when the radiation penetrates the motor body 1, the emitted radiation is blocked by the shielding inner cover 20 to reduce the influence of the radiation on the stator 18 and the rotor 19, and the outer surface of the motor body 1 is provided with cooling fins 2. When the stator 18 and the rotor 19 inside the motor body 1 rotate, the cooling fins 2 can be used to increase the heat dissipation area, thereby achieving rapid heat dissipation. The filter 23 is arranged on the side of the cooling fin 2 away from the fixed sleeve 4, and the filter 23 model is: AAM-1A-00.

[0025] An inlet pipe 10 is provided on the outer surface of the fixed sleeve 4, and the coolant enters through the inlet pipe 10, and enters the inside of the circulation pipe 24 through the inlet pipe 10, so that the coolant circulates through the circulation pipe 24 and then flows out through the outlet pipe 11, so that the heat is adsorbed by the coolant, and the outlet pipe 11 is provided on the right side of the inlet pipe 10, and a control unit 17 is provided on the side of the outlet pipe 11 away from the inlet pipe 10, wherein the control unit 17 controls the motor body, and the control unit 17 includes a sealing base 12 and a sealing shell 13, and the sealing shell 13 is provided on the side away from the motor body 1, and a detachable structure is formed between the sealing base 12 and the sealing shell 13 through a card slot, and The sealing base 12 and the sealing shell 13 provided on the outer surface of the control unit 17 are both radiation-proof metals, wherein the sealing shell 13 is engaged in the sealing base 12, and while a gap is created, it is also used to reduce the impact of radiation on the electronic components inside the control unit 17. A connecting shaft 14 is provided at the center of the inner wall of the fixed sleeve 4, and a first bearing 15 is engaged on the outer surface of the connecting shaft 14, and the first bearing 15 is used to reduce the friction force on the connecting shaft 14 itself, so as to reduce the heat on the connecting shaft 14. A cooling fan 16 is provided below the first bearing 15, and when the rotating shaft 8 drives the connecting shaft 14 to rotate, the connecting shaft 14 drives the cooling fan 16 to rotate.

[0026] A stator 18 is provided on the side of the shielding inner cover 20 away from the motor body 1, and a circulation pipe 24 is placed at the center of the two groups of stators 18, and the liquid inlet pipe 10, the liquid outlet pipe 11 and the circulation pipe 24 form a detachable structure through snaps, and the circulation pipe 24 is arranged in a disc shape at the cooling fan 16, so as to dissipate the coolant inside the circulation pipe 24 through the fan, and the circulation pipe 24 can also be blown to relieve the flow of hot air inside the motor body 1, a rotor 19 is provided at the center of the stator 18, and a fixing groove 21 is provided at the center of the rotor 19, a rotating shaft 8 is placed at the center of the fixing groove 21, the connecting shaft 14 and the rotating shaft 8 form a detachable structure through threads, and the rotor 19 is affected by the stator 18 to rotate.

[0027] A sealing cover 7 is placed on the outer surface of the rotating shaft 8, and a connecting seat 6 is arranged on the side of the sealing cover 7 away from the rotating shaft 8, a connecting hole 601 is arranged on the outer surface of the connecting seat 6, and a second bearing 22 is engaged at the center of the sealing cover 7, a power cord 9 is arranged below the second bearing 22, a positioning hole 701 is arranged on the outer surface of the sealing cover 7, a nameplate 3 is installed on the outer surface of the heat dissipation fin 2, and the top of the motor body 1 is sealed by the sealing cover 7, and the sealing cover 7 is installed with the motor body 1 through the positioning hole 701, the connecting seat 6 fixed on the outer surface of the sealing cover 7, wherein the connecting hole 601 arranged on the outer surface of the connecting seat 6 is used to facilitate the fixation of the motor body 1 as a whole to external equipment.

[0028] In summary, the utility model includes a motor body 1, a shielding inner cover 20 and a filter 23. The inner wall of the motor body 1 is provided with a shielding inner cover 20, and the shielding inner cover 20 blocks radiation to prevent the radiation from penetrating the motor body 1 and affecting the internal stator 18 and rotor 19. The outer surface of the motor body 1 is provided with cooling fins 2, and the cooling fins 2 are used to extend the heat dissipation area of ​​the motor body 1, so as to achieve the purpose of rapid heat dissipation. Since the motor body 1 extends the length of the motor body 1 by fixing the sleeve 4, the sleeve 4 and the bottom shell 5 are fixed to seal the motor body 1, and the top of the motor body 1 is sealed by the sealing base 12. The connecting seat 6 installed on the outer surface of the sealing base 12 is connected through the connecting hole 601 provided on the connecting seat 6, so as to achieve the connection between the motor body 1 and the external device through the connecting hole 601. The motor body 1 is connected and fixed in rows, and at the same time, the stator 18 and the rotor 19 inside the motor body 1 are placed inside the shielding inner cover 20, and a circulation pipe 24 is placed at the center of the stator 18 and the stator 18, and the circulation pipe 24 is coiled in a circle in the fixed sleeve 4 area, so that when the coolant enters, the cooling fan 16 dissipates the coolant inside the circulation pipe 24, and also blows the coolant by the fan, thereby reducing the heat of the air around the inside of the motor body 1, and the control unit 17 is arranged on the side of the liquid inlet pipe 10 and the liquid outlet pipe 11, and the control unit 17 protects the electronic components inside the control unit 17 through the sealing base 12 and the sealing shell 13, and the filter 23 installed inside the motor body 1 can effectively reduce electromagnetic noise and interference, thereby reducing the radiation of the motor, and at the same time reducing the radiation of the motor body 1 from the external environment.

[0029] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A nuclear-grade motor, comprising a motor body (1), a shielding inner cover (20) and a filter (23), characterized in that: A fixed sleeve (4) is installed at the bottom end of the motor body (1), and a bottom shell (5) is provided on a side of the fixed sleeve (4) away from the motor body (1), the shielding inner cover (20) is provided on both sides of the inner wall of the motor body (1), and a heat sink fin (2) is provided on the outer surface of the motor body (1), and the filter (23) is provided on a side of the heat sink fin (2) away from the fixed sleeve (4).

2. A nuclear-grade motor according to claim 1, characterized in that: The outer surface of the fixed sleeve (4) is provided with a liquid inlet pipe (10), and a liquid outlet pipe (11) is provided on the right side of the liquid inlet pipe (10), a control unit (17) is provided on the side of the liquid outlet pipe (11) away from the liquid inlet pipe (10), and the control unit (17) comprises a sealing base (12) and a sealing shell (13), and a sealing shell (13) is provided on the side of the sealing shell (13) away from the motor body (1), and a detachable structure is formed between the sealing base (12) and the sealing shell (13) through a slot.

3. A nuclear-grade motor according to claim 2, characterized in that: A connecting shaft (14) is arranged at the center of the inner wall of the fixed sleeve (4), and a first bearing (15) is engaged with the outer surface of the connecting shaft (14), and a cooling fan (16) is arranged below the first bearing (15).

4. A nuclear-grade motor according to claim 3, characterized in that: A stator (18) is provided on a side of the shielding inner cover (20) away from the motor body (1), and a circulation pipe (24) is placed at the center of the two groups of stators (18), and the liquid inlet pipe (10), the liquid outlet pipe (11) and the circulation pipe (24) form a detachable structure through buckles.

5. A nuclear-level motor according to claim 4, characterized in that: A rotor (19) is arranged at the center of the stator (18), and a fixing groove (21) is arranged at the center of the rotor (19); a rotating shaft (8) is placed at the center of the fixing groove (21); and the connecting shaft (14) and the rotating shaft (8) form a detachable structure through threads.

6. A nuclear-level motor according to claim 5, characterized in that: A sealing cover (7) is placed on the outer surface of the rotating shaft (8), and a connecting seat (6) is provided on a side of the sealing cover (7) away from the rotating shaft (8), a connecting hole (601) is provided on the outer surface of the connecting seat (6), and a second bearing (22) is engaged at the center of the sealing cover (7), and a power cord (9) is provided below the second bearing (22).

7. A nuclear-grade motor according to claim 6, characterized in that: The outer surface of the sealing cover (7) is provided with a positioning hole (701), and the outer surface of the heat dissipation fin (2) is installed with a nameplate (3).

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