CN112821699B

CN112821699B - Double-stator permanent magnet synchronous motor

Info

Publication number: CN112821699B
Application number: CN202110022085.3A
Authority: CN
Inventors: 李胜永; 郭默琛; 何翠芳
Original assignee: Jiangsu Vocational and Technical Shipping College
Current assignee: Jiangsu Vocational and Technical Shipping College
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2022-03-25
Anticipated expiration: 2041-01-08
Also published as: CN112821699A

Abstract

The invention discloses a double-stator permanent magnet synchronous motor which comprises an installation base, a shell, a vibration damping mechanism, a heat dissipation mechanism and an automatic protection mechanism, wherein the upper end surface of the installation base is connected with the lower end surface of the outer side of the shell, one side in the shell is provided with a bearing installation seat, an output shaft is arranged on the bearing installation seat, two sides in the shell are respectively provided with a first stator and a second stator, and two sides in the shell are respectively provided with a first rotor corresponding to the first stator and a second rotor corresponding to the second stator. The invention has simple structure and reasonable design, can absorb and consume the vibration acting force generated when the motor works, effectively buffers the vibration of the motor, can stably accelerate the dissipation of heat in the motor shell, prolongs the service life of the motor, automatically detects the temperature in the motor during the working process of the motor, and sends an alarm and cuts off a circuit when the temperature is too high to protect the motor.

Description

Double-stator permanent magnet synchronous motor

Technical Field

The invention relates to the technical field of motor equipment, in particular to a double-stator permanent magnet synchronous motor.

Background

The traditional motor generally has only one stator and one rotor, and the motor has only one mechanical port no matter a direct current machine, a synchronous machine or an asynchronous machine, and in recent years, a concept of a double-rotor motor is proposed, wherein the motor has 2 mechanical shafts and can realize independent transmission of energy of the 2 mechanical shafts. The novel motor greatly reduces the volume and the weight of equipment, improves the working efficiency, can well meet the requirements of energy conservation and speed regulation, and has superior running performance, thereby having good application prospect in many fields.

The conventional device has the following disadvantages:

1. in the working process of the motor, the rotation of the rotor and the output shaft can cause the vibration of the motor, but the existing motor is only buffered by a spring and a simple structure, has poor damping effect and cannot effectively absorb and consume the vibration acting force generated by the working of the motor;

2. meanwhile, the motor is easy to generate higher temperature in work, and particularly, in some places with higher temperature or under the condition of increased air temperature, the temperature can be reduced only by one fan blade in the motor, so that the cooling effect is poor;

3. and when the temperature in the motor is higher, the feedback can not be timely carried out and corresponding protection measures can not be carried out, so that the precise structure in the motor can be damaged.

Disclosure of Invention

The present invention is directed to a double-stator permanent magnet synchronous motor to solve the problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a two stator PMSM, includes installation base, casing, damping mechanism, heat dissipation mechanism and automatic protection machanism, be connected with the lower terminal surface in the casing outside on the up end of installation base, the inside one side of casing is provided with the bearing mount pad, be provided with the output shaft on the bearing mount pad, the inside both sides of casing are provided with first stator and second stator respectively, the inside both sides of casing are provided with the first rotor that corresponds with first stator and the second rotor that corresponds with the second stator respectively, the casing is kept away from and is provided with the heat exchanger that looses on the side of bearing mount pad one side, damping mechanism sets up on the lower terminal surface of installation base, heat dissipation mechanism sets up the inside at the heat exchanger that looses, automatic protection machanism sets up on the inside of casing and the lateral surface of scattered heat exchanger.

As a further improvement of the present invention, the vibration reduction mechanism is composed of a liquid storage tank, a cooling liquid, a plurality of vibration reduction rods, a plurality of first rubber balls, a plurality of springs and a plurality of second rubber balls, the liquid storage tank is arranged on the lower end surface of the mounting base, the cooling liquid is arranged inside the liquid storage tank, the plurality of vibration reduction rods are arranged inside the liquid storage tank on the lower end surface of the mounting base, the first rubber balls are arranged on the lower end surface of the vibration reduction rods, the plurality of springs are arranged on the lower end surface inside the liquid storage tank, and the second rubber balls are arranged on the upper end surface of the springs.

As a further improvement of the invention, the heat dissipation mechanism consists of a main fan blade, an annular mounting frame, a plurality of hexagonal heat dissipation frames, a heat conduction silica gel layer, a mounting ring, a mounting frame, a secondary fan blade and a flow control plate, the output shaft is provided with main blades in the heat dissipation cover, an annular mounting frame is arranged in the heat dissipation cover between the bearing mounting seat and the main blades, a plurality of hexagonal heat dissipation frames are arranged inside the annular mounting frame, a heat conduction silica gel layer is arranged on the side surface of the hexagonal heat dissipation frame, which is far away from one side of the main fan blade, the hexagonal heat dissipation frame is provided with a mounting ring at one side close to the circle center of the annular mounting frame, the output shaft is movably arranged in the mounting ring, the inside of hexagon heat dissipation frame is provided with the mounting bracket, the activity is provided with time flabellum on the mounting bracket, the hexagon heat dissipation frame is kept away from the inside upper end of heat conduction silica gel layer one side and is provided with the accuse and flows the board.

As a further improvement of the invention, the automatic protection mechanism comprises a fixed seat, a PLC programmable controller, a temperature sensor and an alarm, the fixed seat is arranged on the outer surface of the upper end of the heat dissipation cover, the PLC programmable controller is arranged on the upper end surface of the fixed seat, the temperature sensor is arranged between the first stator and the second stator on the lower end surface inside the housing, the PLC programmable controller is electrically connected with the temperature sensor, the alarm is arranged on the upper end of the PLC programmable controller, and the output end of the PLC programmable controller is in control connection with the input end of the alarm.

As a further improvement of the invention, a plurality of heat dissipation plates are arranged on the upper end surface of the mounting base, the upper end surface of each heat dissipation plate is arranged on the outer side surface of the shell, a plurality of heat conduction columns are arranged on the lower end surface of the heat dissipation plate on the lower end surface of the mounting base, a plurality of round holes are arranged on the heat conduction columns, and the heat conduction columns and the shock absorption rods are arranged at intervals.

As a further improvement of the invention, a plurality of air guide holes are arranged on the side surface of the shell close to one side of the bearing mounting seat, dust screens are arranged on the heat dissipation cover and inside the air guide holes, and sound absorption cotton is arranged on the inner side wall inside the shell.

As a further improvement of the invention, a plurality of fixing blocks are arranged on four sides of the outer side surface of the liquid storage tank, and bolt fixing holes are formed in the fixing blocks.

As a further improvement of the invention, the height of the second rubber ball is higher than that of the first rubber ball, the second rubber ball is arranged on the arc-shaped motion track of the first rubber ball, and the first rubber ball and the second rubber ball are both arranged to be hollow.

As a further improvement of the invention, the PLC is in control connection with a power output device outside the motor, and the alarm comprises two parts, namely an alarm lamp and a buzzer.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the vibration damping mechanism is arranged and consists of the liquid storage tank, the cooling liquid, the plurality of vibration damping rods, the plurality of first rubber balls, the plurality of springs and the plurality of second rubber balls, and the vibration acting force generated when the motor works can be absorbed and consumed through the buffer absorption of the cooling liquid and the buffer consumption of the vibration damping rods, the first rubber balls, the springs and the second rubber balls, so that the vibration of the motor is effectively buffered, and the service life of the motor is prolonged;

2. according to the invention, the heat dissipation mechanism is arranged and consists of the main fan blades, the annular mounting frame, the hexagonal heat dissipation frames, the heat conduction silica gel layer, the mounting ring, the mounting frame, the secondary fan blades and the flow control plate, the heat in the shell can be effectively absorbed by utilizing the honeycomb heat dissipation principle and the heat conduction performance of silica gel, the air is driven to circulate by the main fan blades, and the secondary fan blades are rotated by the flow control plate, so that the circulation efficiency of the air is further increased, and the heat dissipation effect is improved;

3. according to the invention, the automatic protection mechanism is arranged and consists of a fixed seat, a PLC (programmable logic controller), a temperature sensor and an alarm, the temperature is detected by the temperature sensor 53, data is transmitted to the PLC 52, and the circuit is cut off and the alarm is given out by the PLC 52 to protect the motor.

Drawings

FIG. 1 is an overall perspective view of a double-stator permanent magnet synchronous motor;

FIG. 2 is a schematic structural diagram of a damping mechanism of a double-stator permanent magnet synchronous motor;

FIG. 3 is a schematic diagram of an internal structure of a double-stator permanent magnet synchronous motor housing;

FIG. 4 is a side view of a hexagonal heat sink frame of a dual-stator PMSM;

fig. 5 is an enlarged schematic view of a double-stator permanent magnet synchronous motor at a position a in fig. 2.

In the figure: 1. installing a base; 2. a housing; 21. an air vent; 3. a vibration reduction mechanism; 31. a liquid storage tank; 32. cooling liquid; 33. a shock-absorbing lever; 34. a first rubber ball; 35. a spring; 36. a second rubber ball; 4. a heat dissipation mechanism; 41. a main fan blade; 42. an annular mounting frame; 43. a hexagonal heat dissipation frame; 44. a heat conductive silica gel layer; 45. a mounting ring; 46. a mounting frame; 47. a secondary fan blade; 48. a flow control plate; 5. an automatic protection mechanism; 51. a fixed seat; 52. a PLC programmable controller; 53. a temperature sensor; 54. an alarm; 6. a bearing mount; 7. an output shaft; 8. a first stator; 9. a second stator; 10. a first rotor; 11. a second rotor; 12. a heat dissipation cover; 13. a heat dissipation plate; 14. a heat-conducting column; 141. a circular hole; 15. a dust screen; 16. sound-absorbing cotton; 17. a fixed block; 171. and (4) bolt fixing holes.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is 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 invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "fixed," "mounted," "connected," or "disposed" to another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are used merely to facilitate description of the present invention and to simplify description, and do not indicate or imply that the referenced devices or elements must have the particular orientations, configurations and operations described in the specification, and therefore are not to be considered limiting.

As a further development of the invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-5, the present invention provides a technical solution: a double-stator permanent magnet synchronous motor comprises a mounting base 1 and a shell 2, damping mechanism 3, heat dissipation mechanism 4 and automatic protection machanism 5, lower terminal surface welding in the upper end face with the casing 2 outside on the installation base 1, bearing mount pad 6 is installed through the bolt to one side of the casing 2 inside, install output shaft 7 on the bearing mount pad 6, first stator 8 and second stator 9 are installed respectively to the inside both sides of casing 2, first rotor 10 corresponding with first stator 8 and second rotor 11 corresponding with second stator 9 are installed respectively to the inside both sides of casing 2, install heat exchanger 12 through the bolt on the side of casing 2 keeping away from bearing mount pad 6 one side, damping mechanism 3 installs on the lower terminal surface of installation base 1, heat dissipation mechanism 4 installs in the inside of heat exchanger 12, automatic protection machanism 5 installs on the inside of casing 2 and the lateral surface of heat exchanger 12.

In some embodiments of the present invention, the damping mechanism 3 is composed of a liquid storage tank 31, a cooling liquid 32, a plurality of damping rods 33, a plurality of first rubber balls 34, a plurality of springs 35, and a plurality of second rubber balls 36, the liquid storage tank 31 is welded on the lower end surface of the mounting base 1, the cooling liquid 32 is filled in the liquid storage tank 31, the plurality of damping rods 33 are mounted inside the liquid storage tank 31 on the lower end surface of the mounting base 1 through pin shafts, the first rubber balls 34 are mounted on the lower end surface of the damping rods 33, the plurality of springs 35 are mounted on the lower end surface inside the liquid storage tank 31, and the second rubber balls 36 are mounted on the upper end surface of the springs 35.

By arranging the cooling liquid 32, the shock absorption rods 33, the first rubber balls 34, the springs 35 and the second rubber balls 36 and the like, the shock acting force generated when the motor works can be absorbed and consumed through the buffer absorption of the cooling liquid 32 and the buffer consumption of the shock absorption rods 33, the first rubber balls 34, the springs 35 and the second rubber balls 36, and the shock of the motor can be effectively buffered;

in some embodiments of the present invention, the heat dissipating mechanism 4 comprises a main fan blade 41, an annular mounting frame 42, a plurality of hexagonal heat dissipating frames 43, a heat conductive silica gel layer 44, a mounting ring 45, a mounting frame 46, a secondary fan blade 47 and a flow control plate 48, the main fan blade 41 is mounted inside the heat dissipating cover 12 of the output shaft 7, the annular mounting frame 42 is mounted inside the heat dissipating cover 12 between the bearing mounting seat 6 and the main fan blade 41 through bolts, the plurality of hexagonal heat dissipating frames 43 are welded inside the annular mounting frame 42, the heat conductive silica gel layer 44 is connected to the side surface of the hexagonal heat dissipating frame 43 far away from the main fan blade 41 in a hot melting manner, the mounting ring 45 is welded to the side of the hexagonal heat dissipating frame 43 close to the center of the annular mounting frame 42, the output shaft 7 is mounted inside the mounting ring 45 through a bearing, the mounting frame 46 is welded inside the hexagonal heat dissipating frame 43, the secondary fan blade 47 is mounted on the mounting frame 46 through a bearing, the upper end of the inner part of one side of the hexagonal heat dissipation frame 43 away from the heat conduction silica gel layer 44 is welded with a flow control plate 48.

By arranging the hexagonal heat dissipation frame 43 and the heat conduction silica gel layer 44, the heat inside the shell 2 can be effectively absorbed by utilizing the honeycomb heat dissipation principle and the heat conduction performance of silica gel, the air is driven to circulate through the main fan blade 41, and the secondary fan blade 47 is rotated through the flow control plate 48, so that the circulation efficiency of the air is further increased, and the heat dissipation effect is improved;

in some embodiments of the present invention, the automatic protection mechanism 5 includes a fixing base 51, a PLC programmable controller 52, a temperature sensor 53, and an alarm 54, the fixing base 51 is installed on an outer surface of an upper end of the heat dissipation cover 12 through a bolt, the PLC programmable controller 52 is installed on an upper end surface of the fixing base 51 through a bolt, the temperature sensor 53 is installed between the first stator 8 and the second stator 9 through a bolt on a lower end surface inside the housing 2, the PLC programmable controller 52 and the temperature sensor 53 are electrically connected through a wire, the alarm 54 is installed on an upper end of the PLC programmable controller 52 through a bolt, and an output end of the PLC programmable controller 52 is electrically connected to an input end of the alarm 54 through a wire.

By arranging the PLC 52, the temperature sensor 53 and the alarm 54, the temperature sensor 53 detects the temperature and transmits data to the PLC 52, and the PLC 52 cuts off a circuit and gives an alarm to protect the motor;

in some embodiments of the present invention, a plurality of heat dissipation plates 13 are welded to the upper end surface of the mounting base 1, the upper end surface of the heat dissipation plate 13 is welded to the outer side surface of the housing 2, a plurality of heat conduction columns 14 are welded to the lower end surface of the mounting base 1 to the lower end surface of the heat dissipation plate 13, a plurality of circular holes 141 are formed in the heat conduction columns 14, and the heat conduction columns 14 and the shock absorption rods 33 are spaced apart from each other.

The plurality of radiating plates 13 and the heat conducting columns 14 are arranged, so that heat on the shell 2 can be transferred to the cooling liquid 32, the cooling liquid 32 absorbs the heat, the radiating effect is improved, meanwhile, the round holes 141 are formed in the heat conducting columns 14, the contact area between the cooling liquid 32 and the heat conducting columns 14 is increased, and the heat conducting effect is further improved;

in some embodiments of the present invention, a plurality of air vents 21 are opened on a side surface of the housing 2 close to the bearing mounting seat 6, dust screens 15 are installed on the heat dissipation cover 12 and inside the air vents 21, and sound absorbing cotton 16 is installed on an inner side wall inside the housing 2.

The air circulation efficiency in the shell 2 is improved in the working process of the main fan blade 41 by setting a plurality of air guide holes 21, dust can be prevented from entering the shell 2 by setting the dustproof net 15, and noise can be absorbed by the sound absorption cotton 16;

in some embodiments of the present invention, a plurality of fixing blocks 17 are welded on four sides of the outer side surface of the liquid storage tank 31, and bolt fixing holes 171 are formed in the fixing blocks 17.

The whole device is convenient to mount and fix by setting a plurality of fixing blocks 17 and bolt fixing holes 171;

in some embodiments of the present invention, the height of the second rubber ball 36 is higher than that of the first rubber ball 34, and the second rubber ball 36 is disposed on the arc-shaped motion track of the first rubber ball 34, and both the first rubber ball 34 and the second rubber ball 36 are disposed to be hollow.

By setting the position relationship of the first rubber ball 34 and the second rubber ball 36, effective contact buffering of the first rubber ball 34 and the second rubber ball 36 can be ensured;

in some embodiments of the present invention, the PLC 52 is connected to an electric power output device outside the motor by a wire control, and the alarm 54 includes two parts, namely an alarm lamp and a buzzer.

The PLC 52 can lead the device to automatically break and protect the motor, and can effectively alarm;

the working principle is as follows: when the device is used, the damping mechanism 3 is arranged, the damping mechanism 3 is composed of a liquid storage tank 31, cooling liquid 32, a plurality of damping rods 33, a plurality of first rubber balls 34, a plurality of springs 35 and a plurality of second rubber balls 36, when the motor works and vibrates, the mounting base 1 can transmit vibration force to the damping rods 33 to enable the damping rods 33 to swing, the first rubber balls 34 collide with the second rubber balls 36 and are buffered through the springs 35, meanwhile, the first rubber balls 34 and the second rubber balls 36 block absorption acting force through the cooling liquid 32 when swinging, the heat dissipation mechanism 4 is arranged, the heat dissipation mechanism 4 is composed of a main fan blade 41, an annular mounting frame 42, a plurality of hexagonal heat dissipation frames 43, a heat conduction silica gel layer 44, a mounting ring 45, a mounting frame 46, a secondary fan blade 47 and a flow control plate 48, when the motor works, the output shaft 7 drives the main fan blade 41 to rotate, and air inside the shell 2 is enabled to circulate, through the obstruction of the flow control plate 48, only the lower end air flows inside the hexagonal heat dissipation frame 43, thereby driving the secondary fan blades 47 to rotate, further increasing the air flow efficiency and improving the heat dissipation effect, and meanwhile, the automatic protection mechanism 5 is provided, the automatic protection mechanism 5 is composed of a fixed seat 51, a PLC 52, a temperature sensor 53 and an alarm 54, the temperature is detected through the temperature sensor 53, and data is transmitted to the PLC 52, the circuit is cut off and the alarm is given through the PLC 52, so as to protect the motor, the device can absorb and consume the vibration acting force generated when the motor works, effectively buffer the vibration of the motor, stably accelerate the heat dissipation inside the motor shell 2, increase the service life of the motor, and simultaneously automatically detect the temperature inside the motor in the working process of the motor, when the temperature is too high, an alarm is sent out, the circuit is cut off, and the motor is protected.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two stator PMSM, includes installation base (1), casing (2), damping mechanism (3), heat dissipation mechanism (4) and automatic protection machanism (5), its characterized in that: the upper end surface of the mounting base (1) is connected with the lower end surface of the outer side of the shell (2), a bearing mounting seat (6) is arranged on one side inside the shell (2), an output shaft (7) is arranged on the bearing mounting seat (6), a first stator (8) and a second stator (9) are respectively arranged on two sides in the shell (2), a first rotor (10) corresponding to the first stator (8) and a second rotor (11) corresponding to the second stator (9) are respectively arranged at two sides in the shell (2), a heat dissipation cover (12) is arranged on the side surface of the shell (2) far away from the bearing mounting seat (6), the vibration damping mechanism (3) is arranged on the lower end surface of the mounting base (1), the heat dissipation mechanism (4) is arranged inside the heat dissipation cover (12), and the automatic protection mechanism (5) is arranged inside the shell (2) and on the outer side surface of the heat dissipation cover (12);

damping mechanism (3) comprise reservoir (31), coolant liquid (32), a plurality of shock absorber pole (33), the first rubber ball of a plurality of (34), a plurality of spring (35) and a plurality of second rubber ball (36), be provided with reservoir (31) on the lower terminal surface of installation base (1), the inside of reservoir (31) is provided with coolant liquid (32), be provided with a plurality of shock absorber pole (33) in the inside of reservoir (31) on the lower terminal surface of installation base (1), be provided with first rubber ball (34) on the lower terminal surface of shock absorber pole (33), be provided with a plurality of spring (35) on the lower terminal surface of reservoir (31) inside, be provided with second rubber ball (36) on the up end of spring (35).

2. A double stator permanent magnet synchronous machine according to claim 1, characterized in that: the heat dissipation mechanism (4) is composed of a main fan blade (41), an annular mounting frame (42), a plurality of hexagonal heat dissipation frames (43), a heat conduction silica gel layer (44), a mounting ring (45), a mounting frame (46), a secondary fan blade (47) and a flow control plate (48), the main fan blade (41) is arranged in the heat dissipation cover (12) of the output shaft (7), the annular mounting frame (42) is arranged between the bearing mounting seat (6) and the main fan blade (41) in the heat dissipation cover (12), the hexagonal heat dissipation frames (43) are arranged in the annular mounting frame (42), the heat conduction silica gel layer (44) is arranged on the side face of one side, away from the main fan blade (41), of the hexagonal heat dissipation frame (43), the mounting ring (45) is arranged on one side, close to the circle center of the annular mounting frame (42), of the output shaft (7) is movably arranged in the mounting ring (45), the inside of hexagon heat dissipation frame (43) is provided with mounting bracket (46), activity is provided with time flabellum (47) on mounting bracket (46), the inside upper end of heat conduction silica gel layer (44) one side is kept away from in hexagon heat dissipation frame (43) is provided with accuse flow board (48).

3. A double stator permanent magnet synchronous machine according to claim 1, characterized in that: automatic protection machanism (5) comprise fixing base (51), PLC programmable controller (52), temperature sensor (53) and siren (54), be provided with fixing base (51) on the surface of heat exchanger (12) upper end, be provided with PLC programmable controller (52) on the up end of fixing base (51), be provided with temperature sensor (53) on the lower terminal surface of casing (2) inside between first stator (8) and second stator (9), electric connection between PLC programmable controller (52) and temperature sensor (53), the upper end of PLC programmable controller (52) is provided with siren (54), the output of PLC programmable controller (52) and the input control connection of siren (54).

4. A double stator permanent magnet synchronous machine according to claim 2, characterized in that: the mounting structure is characterized in that a plurality of heat dissipation plates (13) are arranged on the upper end face of the mounting base (1), the upper end face of each heat dissipation plate (13) is arranged on the outer side face of the corresponding shell (2), a plurality of heat conduction columns (14) are arranged on the lower end face of the corresponding heat dissipation plate (13) on the lower end face of the mounting base (1), a plurality of round holes (141) are formed in the corresponding heat conduction columns (14), and the heat conduction columns (14) and the shock absorption rods (33) are arranged at intervals.

5. A double stator permanent magnet synchronous machine according to claim 1, characterized in that: be provided with a plurality of air guide hole (21) on casing (2) is close to the side of bearing mount pad (6) one side, all be provided with dust screen (15) with the inside of air guide hole (21) on heat exchanger (12), be provided with on the inside wall of casing (2) inside and inhale sound cotton (16).

6. A double stator permanent magnet synchronous machine according to claim 1, characterized in that: the four sides of the outer side face of the liquid storage tank (31) are provided with a plurality of fixing blocks (17), and the fixing blocks (17) are provided with bolt fixing holes (171).

7. A double stator permanent magnet synchronous machine according to claim 1, characterized in that: the height of the second rubber ball (36) is higher than that of the first rubber ball (34), the second rubber ball (36) is arranged on the arc-shaped motion track of the first rubber ball (34), and the first rubber ball (34) and the second rubber ball (36) are both arranged to be hollow.

8. A double stator permanent magnet synchronous machine according to claim 3, characterized in that: the PLC (52) is in control connection with a power output device outside the motor, and the alarm (54) comprises an alarm lamp and a buzzer.