CN115987018A

CN115987018A - Double-effect heat dissipation type permanent magnet motor

Info

Publication number: CN115987018A
Application number: CN202310273865.4A
Authority: CN
Inventors: 钱伟; 刘广锋; 安晶
Original assignee: Jiangsu Aerospace Power Electric Co Ltd
Current assignee: Jiangsu Aerospace Power Electric Co Ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-04-18
Anticipated expiration: 2043-03-21
Also published as: CN115987018B

Abstract

The invention discloses a double-effect heat dissipation type permanent magnet motor, which relates to the technical field of heat dissipation of permanent magnet motors and comprises a permanent magnet synchronous motor, wherein two groups of semiconductor cooling plates are arranged on the side edge of the permanent magnet synchronous motor, the semiconductor cooling plates are attached to the permanent magnet synchronous motor to dissipate heat after the permanent magnet motor is overheated or stalled, a knocking component is arranged at the upper end of the permanent magnet synchronous motor and is used for knocking a ventilation pipe, dust in the ventilation pipe is knocked by the knocking component and falls into a collecting hopper, a variable-pitch component is arranged inside the ventilation pipe and is used for changing a fan blade angle of a fan blade, so that the variable-pitch component can improve the air passing amount in the ventilation pipe or the suction force on the ventilation pipe.

Description

Double-effect heat dissipation type permanent magnet motor

Technical Field

The invention relates to the technical field of heat dissipation of permanent magnet motors, in particular to a double-effect heat dissipation type permanent magnet motor.

Background

The permanent magnet synchronous motor provides excitation by the permanent magnet, so that the structure of the motor is simpler, the processing and assembling cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, and the running reliability of the motor is improved; and because excitation current is not needed, excitation loss is avoided, and the efficiency and the power density of the motor are improved. The permanent magnet synchronous motor is composed of a stator, a rotor, an end cover and the like. The stator is basically the same as a common induction motor, and a lamination structure is adopted to reduce iron loss during the operation of the motor. The rotor can be made into solid or laminated by lamination. The armature winding can adopt a concentrated whole-pitch winding, and can also adopt a distributed short-pitch winding and an unconventional winding.

Most of the loss generated in the electromechanical energy conversion process of the permanent magnet direct current motor is changed into heat, so that the temperature of each part of the motor is increased. Along with the development of the motor manufacturing industry, the unit capacity of a motor is continuously increased, the unit volume loss generated during the operation of the motor is generally increased, the problem of temperature rise is more and more prominent, the service life and the operation reliability of the motor are seriously affected, and a permanent magnet motor with a high-efficiency heat dissipation effect is urgently needed to be designed.

Chinese patent publication No. CN101714789A discloses an easy-to-radiate permanent magnet motor, which includes a motor casing, a stator is disposed in the motor casing, the stator is provided with a wound core for winding an excitation coil, a rotor is disposed in a cavity of the stator, a magnetic steel sheet is fixed on the rotor, a heat radiation through hole is disposed in the wound core, and the heat radiation through hole is communicated with the outside for a fluid to flow through so as to take away heat of the wound core.

Disclosure of Invention

In view of the problems in the prior art, the invention provides a double-effect heat dissipation type permanent magnet motor.

Aiming at the technical problems, the invention adopts the technical scheme that: the utility model provides a economic benefits and social benefits heat dissipation type permanent-magnet machine, includes the cooling subassembly, is provided with two sets of semiconductor cooling plates on the cooling subassembly, the cooling subassembly include the ventilation pipe, ventilation pipe upper end be provided with and strikes the subassembly, the subassembly of striking including installing the multiunit on the ventilation pipe strike the post, strike post and ventilation pipe intermittent type laminating, the ventilation pipe on still be provided with filter plate and support frame, the inside displacement subassembly that is provided with on the ventilation pipe, the displacement subassembly is including rotating the fixed column of installing on the support frame, the fixed column on be provided with gear two, the fixed column on be provided with the lift post through the integral key shaft, the lift post on be provided with multiunit control mechanism, the fixed column on rotate and be provided with multiunit leaf board, control mechanism and flabellum board be connected, control mechanism swing leaf board rotate, the support frame on be provided with motor one, be provided with gear one on the output shaft of motor one, gear one and gear two meshes.

Furthermore, a temperature sensor is arranged inside the ventilation pipe.

Furthermore, the cooling assembly also comprises a collecting hopper which can be disassembled on the ventilation pipe, and the collecting hopper is positioned at the lower end of the filter plate.

Furthermore, PMSM both sides all be provided with a set of electric jar one and semiconductor cooling board, semiconductor cooling board and PMSM sliding connection, the expansion end and the semiconductor cooling board of electric jar one are connected, semiconductor cooling board laminate with PMSM when PMSM high temperature or stall.

Furthermore, the side of the ventilation pipe is provided with an air inlet, and the air inlet is positioned at the lower end of the semiconductor cooling plate.

Further, strike the subassembly still including installing motor two on the shell, be provided with the cam on motor two's the output shaft, the shell inside slide and be provided with the slurcam, the slurcam with strike the laminating of post, strike and be provided with the spring between one end and the shell that the slurcam is close to.

Furthermore, the end, far away from the pushing plate, of the knocking column is provided with an arc surface, and the arc surface is attached to the ventilation pipe.

Further, control mechanism including rotating the go-between of installing on the lift post, the go-between on rotate and be provided with first group connection ball, the flabellum board on rotate and be provided with the installation piece, the installation piece on rotate and be provided with the go-between, the go-between on rotate and be provided with second group connection ball, two sets of connection balls pass through the connecting rod and connect, two sets of connection balls rotate with the connecting rod and are connected.

Further, the connecting ring and the connecting rod rotate on two planes which are perpendicular to each other.

Furthermore, the fixed column is provided with a second electric cylinder, the lifting column is coaxially provided with a fixed disc, and the movable end of the second electric cylinder is connected with the fixed disc.

Compared with the prior art, the invention has the beneficial effects that: (1) The cooling assembly provided by the invention can be used for cooling the permanent magnet motor through the semiconductor cooling plate, so that the permanent magnet motor can be cooled after the permanent magnet motor is stopped except for the heat dissipation of the permanent magnet motor under the high-temperature condition, the heat dissipation speed is improved, and the permanent magnet motor is prevented from being damaged by the waste heat of the permanent magnet motor; (2) The knocking component can knock the ventilation pipe quickly, so that dust in the ventilation pipe falls off and is collected; (3) The variable pitch assembly provided by the invention can change the blade angle of the fan blade, change the working effect of the fan blade by changing the angle of the blade angle, improve the heat dissipation efficiency of the permanent magnet motor, and simultaneously can clean the heat dissipation fan in the permanent magnet motor.

Drawings

Fig. 1 is a left side view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

FIG. 3 is a schematic view of a cooling assembly according to the present invention.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Fig. 5 is a partial structural schematic view of the cooling assembly of the present invention.

Fig. 6 is an enlarged view of the structure at B in fig. 5.

FIG. 7 is a cross-sectional view of a vent structure according to the present invention.

FIG. 8 is a schematic structural view of a rapping assembly in accordance with the present invention.

FIG. 9 is a cross-sectional view of the knocking assembly according to the present invention.

FIG. 10 is a schematic view of the mounting location of the pitch module and the vent tube of the present invention.

FIG. 11 is a schematic view of a pitch module according to the present invention.

FIG. 12 is an exploded view of the pitch assembly of the present invention.

Reference numerals: 1-a cooling component; 2-a rapping component; 3-a pitch assembly; 101-a permanent magnet synchronous motor; 102-a vent-pipe; 103-semiconductor cooling plate; 104-an electric cylinder I; 105-filter plate; 106-a scaffold; 108-motor one; 109-gear one; 110-a collection hopper; 201-a cam; 202-a housing; 203-motor two; 204-a pushing plate; 205-tapping a column; 206-a spring; 301-gear two; 302-fixed column; 303-lifting columns; 304-a fan blade plate; 305-electric cylinder two; 306-fixing the disc; 307-connecting ring; 308-a connecting ball; 309-connecting rod; 310-mounting block.

Detailed Description

A specific embodiment of the device according to the invention is described further below with reference to the figures and the exemplary embodiments.

Referring to fig. 1 to 12, shown double-effect heat dissipation type permanent magnet motor, including permanent magnet synchronous motor 101, permanent magnet synchronous motor 101 side is provided with two sets of semiconductor cooling plates 103, semiconductor cooling plates 103 cool permanent magnet synchronous motor 101, permanent magnet synchronous motor 101 upper end is provided with strikes subassembly 2 that strikes the ventilation pipe, cooling subassembly 1 is inside to be provided with the variable pitch subassembly 3 that changes the 304 flabellum angles of flabellum board, make variable pitch subassembly 3 can improve the amount of wind in cooling subassembly 1 or improve the suction to the ventilation pipe.

The cooling assembly 1 comprises a permanent magnet synchronous motor 101, a ventilation pipe 102 is arranged at one end, far away from an output shaft, of the permanent magnet synchronous motor 101, a filter plate 105 and a support frame 106 are arranged inside the ventilation pipe 102, a motor I108 is arranged on the support frame 106, a gear I109 is arranged on the output shaft of the motor I108, a collecting hopper 110 is detachably arranged at the lower end of the ventilation pipe 102 and is located at the lower end of the filter plate 105, a group of first electric cylinders 104 and a semiconductor cooling plate 103 are arranged on two sides of the permanent magnet synchronous motor 101, the semiconductor cooling plate 103 is in sliding connection with the permanent magnet synchronous motor 101, the movable end of the first electric cylinder 104 is connected with the semiconductor cooling plate 103, when the temperature of the permanent magnet synchronous motor 101 is too high or needs to be cooled after shutdown, the first electric cylinder 104 is started, the first electric cylinder 104 drives the semiconductor cooling plate 103 to move, the semiconductor cooling plate 103 is attached to the permanent magnet synchronous motor 101 and energizes the semiconductor cooling plate 103 to cool the permanent magnet synchronous motor 101, an air inlet is arranged at the side edge of the ventilation pipe 102 and is located at the lower end of the semiconductor cooling plate 103, when the semiconductor cooling plate 103 cools the semiconductor cooling plate 101, and a sensor is used for detecting the temperature of the semiconductor cooling sensor, and the semiconductor cooling plate 102 is attached to the semiconductor cooling sensor, and the semiconductor cooling plate 102.

The knocking component 2 comprises a shell 202 installed on a ventilation pipe 102, a second motor 203 is arranged on the shell 202, a cam 201 is arranged on an output shaft of the second motor 203, a pushing plate 204 and a knocking column 205 are arranged inside the shell 202 in a sliding mode, the knocking column 205 is attached to the pushing plate 204, a spring 206 is arranged between one end, close to the pushing plate 204, of the knocking column 205 and the shell 202, one end, far away from the pushing plate 204, of the knocking column 205 is arranged to be an arc surface, the arc surface is attached to the ventilation pipe 102, when the knocking component 2 needs to knock the cooling component 1, the second motor 203 is started, the second motor 203 drives the cam 201 to rotate, the cam 201 pushes the pushing plate 204 to move in a reciprocating mode, the knocking column 205 is pushed by the pushing plate 204 to be attached to the ventilation pipe 102, meanwhile, the knocking column 205 automatically resets through the spring 206, and knocking on the ventilation pipe 102 is achieved.

The variable pitch assembly 3 comprises a fixed column 302 rotatably mounted on the support frame 106, one end of the fixed column 302 is provided with a second gear 301, the second gear 301 is meshed with the first gear 109, a lifting column 303 is arranged in the fixed column 302 through a spline shaft, a fixed disc 306 is arranged on the lifting column 303, one end of the fixed column 302, which is far away from the second gear 301, is provided with a second electric cylinder 305, the movable end of the second electric cylinder 305 is connected with the fixed disc 306, three groups of connecting rings 307 are arranged on the lifting column 303, a first connecting ball 308 is rotatably arranged on the connecting rings 307, three groups of fan blade plates 304 are rotatably arranged on the fixed column 302, mounting blocks 310 are rotatably arranged on the fan blade plates 304, a connecting ring 307 is rotatably arranged on the mounting blocks 310, a second connecting ball 308 is rotatably arranged on the connecting rings 307, the two connecting balls 308 are connected through connecting rods 309, the two groups of connecting balls 308 are rotatably connected with the connecting rods 309, and the connecting rings 307 and the connecting rods 309 rotate on two mutually perpendicular planes.

The working principle is as follows: when the permanent magnet synchronous motor 101 works, firstly, the permanent magnet synchronous motor 101 is started, heat dissipation is carried out through a heat dissipation fan carried by the permanent magnet synchronous motor 101 when the permanent magnet synchronous motor 101 works, exhausted wind is exhausted through a ventilation pipe 102, when a temperature sensor in the ventilation pipe 102 detects that the temperature in the ventilation pipe 102 is too high, a first electric cylinder 104 is started, the first electric cylinder 104 drives a semiconductor cooling plate 103 to be attached to the permanent magnet synchronous motor 101, meanwhile, the semiconductor cooling plate 103 is electrified, the semiconductor cooling plate 103 is enabled to carry out heat dissipation on the permanent magnet synchronous motor 101, and after the permanent magnet synchronous motor 101 stops, in order to avoid damage to the permanent magnet synchronous motor 101 caused by waste heat of the permanent magnet synchronous motor 101, the semiconductor cooling plate 103 also carries out heat dissipation on the permanent magnet synchronous motor 101, meanwhile, when the permanent magnet synchronous motor 101 is started, the variable-pitch component 3 also works simultaneously, heat dissipation is carried out on the permanent magnet synchronous motor 101 through the ventilation pipe 102, when the wind passes through the ventilation pipe 102, the filter plate 105 is used for filtering the wind passing through the ventilation pipe 102.

When dust on the filter plate 105 is large, the second motor 203 is started, the second motor 203 drives the cam 201 to rotate, the cam 201 drives the pushing plate 204 to reciprocate in the shell 202, the pushing plate 204 pushes the knocking column 205 to reciprocate in the shell 202, meanwhile, the knocking column 205 knocks the ventilation pipe 102 when reciprocating, and the knocking column 205 automatically resets through the arrangement of the spring 206.

When the pitch-variable component 3 works, the first motor 108 is started, the first motor 108 drives the first gear 109 to rotate, the first gear 109 drives the second gear 301 to rotate, the second gear 301 drives the fixed column 302 to rotate on the support frame 106, the second gear 301 drives the lifting column 303 to rotate, the lifting column 303 drives the three groups of fan blades 304 to rotate, when the permanent magnet synchronous motor 101 is subjected to heat dissipation, the second electric cylinder 305 is started, the second electric cylinder 305 drives the fixed disc 306 to move, the fixed disc 306 drives the lifting column 303 to move in the fixed column 302, the lifting column 303 drives the connecting ring 307 to move, the connecting ring 307 rotates on the connecting ball 308 and simultaneously drives the connecting ball 308 to rotate, the connecting ball 308 drives the connecting rod 309 to rotate, the connecting rod 309 drives the fan blades 304 to rotate on the fixed column 302 through the other group of connecting ball 308 and the connecting ring 307, at the moment, the fan blade angle of the fan blades 304 is changed, when the fan blade angle of the fan blades 304 is reduced, the suction force of the ventilation pipe 102 inside of the pitch-variable component 3 is increased, the self-contained heat dissipation fan 101 in the synchronous motor 101 can be cleaned, the sundries on the fan can be adsorbed, when the fan blade angle of the fan blades 304 is increased, and the rotating speed of the ventilation pipe is increased, and the fan blade angle of the fan blades 304 is increased, and the rotating speed of the fan blades is increased, and the fan blades is quickly reduced, and the fan blades 102 is increased.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.

Claims

1. The utility model provides a economic benefits and social benefits heat dissipation type permanent-magnet machine, includes cooling subassembly (1), is provided with two sets of semiconductor cooling boards (103) on cooling subassembly (1), its characterized in that: the cooling assembly (1) comprises a ventilation pipe (102), a knocking assembly (2) is arranged at the upper end of the ventilation pipe (102), the knocking assembly (2) comprises a plurality of groups of knocking columns (205) arranged on the ventilation pipe (102), the knocking columns (205) are intermittently attached to the ventilation pipe (102), a filter plate (105) and a support frame (106) are further arranged on the ventilation pipe (102), a variable-pitch assembly (3) is arranged inside the ventilation pipe (102), the variable-pitch assembly (3) comprises a fixed column (302) rotatably arranged on the support frame (106), a second gear (301) is arranged on the fixed column (302), a lifting column (303) is arranged on the fixed column (302) through a spline shaft, a plurality of groups of control mechanisms are arranged on the lifting column (303), a plurality of groups of fan blade plates (304) are rotatably arranged on the fixed column (302), the control mechanisms are connected with the fan blade plates (304), the control mechanisms swing the fan blade plates (304) to rotate, a first motor (108) is arranged on the support frame (106), and a first gear (108) is meshed with a second gear (109).

2. The double-effect heat dissipation type permanent magnet motor according to claim 1, characterized in that: a temperature sensor is arranged in the ventilation pipe (102).

3. The double-effect heat dissipation type permanent magnet motor according to claim 1, characterized in that: the cooling assembly (1) further comprises a collecting hopper (110) which is detachably arranged on the ventilation pipe (102), and the collecting hopper (110) is positioned at the lower end of the filter plate (105).

4. The double-effect heat dissipation type permanent magnet motor according to claim 1, characterized in that: permanent magnet synchronous machine (101) both sides all be provided with a set of electric jar (104) and semiconductor cooling board (103), semiconductor cooling board (103) and permanent magnet synchronous machine (101) sliding connection, the expansion end and the semiconductor cooling board (103) of electric jar (104) are connected, semiconductor cooling board (103) laminate with permanent magnet synchronous machine (101) when permanent magnet synchronous machine (101) high temperature or stall.

5. The double-effect heat dissipation type permanent magnet motor according to claim 4, wherein: an air inlet is formed in the side edge of the ventilation pipe (102), and the air inlet is located at the lower end of the semiconductor cooling plate (103).

6. The double-effect heat dissipation type permanent magnet motor according to claim 1, characterized in that: strike subassembly (2) still including installing motor two (203) on shell (202), be provided with cam (201) on the output shaft of motor two (203), shell (202) inside slide and be provided with catch plate (204), catch plate (204) with strike post (205) laminating, strike post (205) and catch plate (204) be close to one end and shell (202) between be provided with spring (206).

7. The dual-effect heat dissipation type permanent magnet motor of claim 6, wherein: one end, far away from the pushing plate (204), of the knocking column (205) is arranged to be an arc surface, and the arc surface is attached to the ventilation pipe (102).

8. The double-effect heat dissipation type permanent magnet motor according to claim 1, characterized in that: control mechanism including rotating connecting ring (307) of installing on lift post (303), connecting ring (307) on rotate and be provided with first group connection ball (308), flabellum board (304) on rotate and be provided with installation piece (310), installation piece (310) on rotate and be provided with connecting ring (307), connecting ring (307) on rotate and be provided with second group and connect ball (308), two sets of connection balls (308) are connected through connecting rod (309), two sets of connection balls (308) are connected with connecting rod (309) rotation.

9. The dual-effect heat dissipation type permanent magnet motor according to claim 8, wherein: the connecting ring (307) and the connecting rod (309) rotate on two planes which are perpendicular to each other.

10. The dual-effect heat dissipation type permanent magnet motor of claim 9, wherein: the fixed column (302) is provided with a second electric cylinder (305), the lifting column (303) is coaxially provided with a fixed disc (306), and the movable end of the second electric cylinder (305) is connected with the fixed disc (306).