CN114157113B

CN114157113B - Permanent magnet synchronous motor with high power density

Info

Publication number: CN114157113B
Application number: CN202111489869.3A
Authority: CN
Inventors: 张锦; 李光宇; 陈国彬
Original assignee: Suqian College
Current assignee: Suqian College
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2023-04-18
Anticipated expiration: 2041-12-08
Also published as: CN114157113A

Abstract

The invention provides a permanent magnet synchronous motor with high power density, which relates to the technical field of permanent magnet synchronous motors and comprises an installation component; the rotor device and the stator device are arranged in the mounting assembly, the rotor device is positioned in the stator device, and the heat dissipation device is arranged on the right side of the rotor device; the connecting assembly is arranged on the left side of the rotor device, the soft start assembly is arranged inside the connecting assembly, and two groups of fixing devices are arranged on the left side of the connecting assembly; the anti-loosening assemblies are provided with two groups, the two groups of anti-loosening assemblies are arranged on the mounting assembly, and the two groups of anti-loosening assemblies are provided with limiting assemblies; the invention avoids the damage caused by load, has strong reliability after starting, can not loosen when being used for a long time, and improves the stability when being used; the problem of easily taking place not hard up when long-time the use is solved.

Description

Permanent magnet synchronous motor with high power density

Technical Field

The invention relates to the technical field of permanent magnet synchronous motors, in particular to a permanent magnet synchronous motor with high power density.

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.

However, as for the existing permanent magnet synchronous motor, the gap between the rotor and the stator is not convenient for workers to adjust, the chamber sweeping phenomenon is easy to occur during use, the assembly difficulty is increased, the rotor is easy to damage under the action of a load during starting, the service life is shortened, the rotor is easy to loosen during long-time use, the reliability is reduced, and the existing permanent magnet synchronous motor cannot meet the current use requirements.

Disclosure of Invention

In view of this, the present invention provides a permanent magnet synchronous motor with high power density, which has a soft start component and a loosening prevention component, thereby avoiding damage due to load, and meanwhile, the permanent magnet synchronous motor has strong reliability after starting, and can not loosen during long-time use, thereby improving stability during use.

The invention provides a permanent magnet synchronous motor with high power density, which specifically comprises a mounting assembly; the rotor device and the stator device are arranged in the mounting assembly, the rotor device is positioned in the stator device, and the heat dissipation device is arranged on the right side of the rotor device; the connecting assembly is arranged on the left side of the rotor device, the soft start assembly is arranged inside the connecting assembly, and two groups of fixing devices are arranged on the left side of the connecting assembly; the anti-loosening assemblies are provided with two groups, the two groups of anti-loosening assemblies are arranged on the mounting assembly, and the two groups of anti-loosening assemblies are provided with limiting assemblies; the anti-loosening assembly comprises: the mounting rack is fixedly connected with the base on the mounting assembly; the three stabilizing plates are fixedly arranged on the inner side of the mounting frame, and the bottoms of the three stabilizing plates are fixedly connected with the base; the mounting frame is fixedly mounted at the bottom of the mounting frame; the supporting block is slidably arranged in the mounting frame, a limiting groove is formed in the front side of the supporting block, and three springs are arranged at the top of the supporting block; the limiting plate is fixedly arranged inside the supporting block; the limiting pin is arranged on the mounting frame in a sliding manner, and the rear end of the limiting pin is inserted into the limiting groove; the spacing subassembly includes: the L-shaped frame is fixedly connected with the mounting frame; the guide posts B are arranged, the two guide posts B are slidably arranged on the L-shaped frame, and springs are arranged outside the two guide posts B; the limiting blocks are fixedly arranged at the inner ends of the two guide columns B and are connected with the mounting frame in a sliding manner; and the pulling plate is fixedly arranged at the outer ends of the two guide columns B.

Optionally, the connection assembly comprises: the connecting pin is connected with the through hole in a sliding manner; the two connecting blocks are arranged and are arranged on the connecting pin in a sliding manner; the limiting needle is inserted and connected to the connecting pin; the connecting sleeve is fixedly arranged on the left side of the two connecting blocks.

Optionally, the mounting assembly comprises: the base is provided with two through grooves in a penetrating manner; the shell is fixedly arranged at the top of the base; the end cover is arranged on the right side of the shell through screws; the two support frames are arranged and fixedly arranged in the shell; the bearing, the bearing is equipped with two altogether, and two bearings are installed in the inside of two support frames.

Optionally, the soft start component comprises: the connecting disc is fixedly arranged on the left side of the rotating shaft and is positioned inside the connecting sleeve; the mounting block is fixedly mounted on the connecting disc; the guide rod is fixedly arranged on the mounting block; and the bent spring is arranged outside the guide rod.

Optionally, the rotor apparatus comprises: the rotating shaft is connected with the two bearings, and a through hole is arranged on the rotating shaft in a penetrating way; and the rotor is fixedly arranged outside the rotating shaft.

Optionally, the soft start component further comprises: the driving disc is arranged on the left side of the connecting disc and is positioned inside the connecting sleeve; the guide block is fixedly arranged on the driving disc and is in sliding connection with the guide rod; the drive shaft, drive shaft fixed mounting are in the left side of driving-disc, and the outer wall of drive shaft is provided with two fixed slots.

Optionally, the heat dissipation device includes: the heat dissipation seat is fixedly connected with the rotating shaft; the mounting plate is fixedly mounted on the right side of the heat radiating seat; twelve radiating fins are arranged on the right side of the mounting plate.

Optionally, the fixing means comprises: the fixed block is fixedly connected with the connecting sleeve; the L-shaped plate is fixedly arranged on the outer side of the fixed block; the fixing pin is arranged on the fixing block and the L-shaped plate in a sliding mode, is tangent to the driving shaft and is externally provided with a spring; the limiting ring is fixedly installed outside the fixing pin, and a spring outside the fixing pin is located between the L-shaped plate and the limiting ring.

Optionally, the stator arrangement comprises: the guide posts A are four in number and are connected with the shell in a sliding manner; the two stators are fixedly arranged at the inner ends of the four guide posts A; the T-shaped plates are arranged, and the two T-shaped plates are fixedly arranged at the outer ends of the four guide columns A.

Optionally, the stator arrangement further comprises: the mounting seat is fixedly mounted at the bottom of the shell; the adjusting rod is rotatably arranged on the mounting seat, the outer wall of the adjusting rod is provided with two-way threads, and the adjusting rod is in threaded connection with the two T-shaped plates; the screw thread nail is installed at the bottom of mount pad, and the top of screw thread nail is tangent with adjusting the pole.

Advantageous effects

Compared with the traditional motor, the permanent magnet synchronous motor provided by each embodiment of the invention can automatically dissipate heat when in use, avoids damage caused by high temperature, prolongs the service life, is convenient for workers to adjust the gap between the stator and the rotor, avoids the phenomenon of sweeping the chamber, is more convenient for the workers to assemble, has a soft start function, avoids damage caused by load, has strong reliability after start, can not loosen when in long-term use, and improves the stability when in use.

In addition, as the twelve radiating fins are fixedly arranged on the right side of the mounting plate and the radiating seat is fixedly connected with the rotating shaft, when the cooling fan is used, the twelve radiating fins automatically rotate under the action of the rotating shaft, so that a good cooling effect is achieved for the inner part of the shell, the damage caused by high temperature is avoided, the service life is prolonged, the adjusting rod is rotatably arranged on the mounting seat, the outer wall of the adjusting rod is provided with two-way threads and is in threaded connection with the two T-shaped plates, the two T-shaped plates are fixedly connected with the four guide posts A, when a worker clockwise rotates the adjusting rod, the two stators simultaneously move inwards under the action of the two T-shaped plates, when the worker anticlockwise rotates the adjusting rod, the two stators simultaneously move outwards under the action of the two T-shaped plates, the worker can conveniently adjust the gap between the two stators and the rotor, the two stators and the rotor are prevented from being rubbed, the occurrence of a chamber sweeping phenomenon is avoided, the worker can conveniently assemble the cooling fan, and the screw is arranged at the bottom of the mounting seat and the top of the screw is tangent with the adjusting rod, so that the adjusting rod is more stable after adjustment is achieved, the reliability of the cooling fan is improved.

In addition, the installation block is fixedly installed on the connection disc, the guide rod is fixedly installed on the installation block, the bent spring is installed outside the guide rod, and the guide block is in sliding connection with the guide rod, so that when the soft start device is started, the driving shaft slowly rotates under the action of a load, an angle between the driving shaft and the rotating shaft is changed, the bent spring is extruded under the action of the guide block, when the angle between the driving shaft and the rotating shaft is ninety degrees, the two fixing pins are concentric with the two fixing grooves, the fixing pins are slidably installed on the fixing blocks and the L-shaped plate and are tangent to the driving shaft, the spring outside the fixing pins is located between the L-shaped plate and the limiting ring, when the angle between the driving shaft and the rotating shaft is ninety degrees, the two fixing pins are inserted and connected into the two fixing grooves under the action of the spring, the soft start device is further realized, the damage caused by the load is avoided, and the two fixing pins are inserted and connected into the two fixing grooves after the start, and the reliability is improved.

In addition, because the bottom surfaces of the two supporting blocks are flush with the base, when the two limiting pins are pulled out by a worker after the device is installed, the two supporting blocks are in sliding connection with the two through grooves, when the device is loosened after long-time use, the two supporting blocks automatically move downwards under the action of the springs, the two guide columns B are slidably installed on the L-shaped frame, the springs are installed outside the two guide columns B, the limiting blocks are fixedly installed at the inner ends of the two guide columns B, the two limiting blocks are tightly attached to the two limiting plates under the action of the springs, the two supporting blocks can only move downwards, the phenomenon that the device is loosened during long-time use is avoided, and the stability during use is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to some embodiments of the invention only and are not intended to limit the invention.

In the drawings:

FIG. 1 shows a schematic perspective view of an embodiment according to the invention;

FIG. 2 shows a rear side view corner configuration of FIG. 1;

FIG. 3 illustrates a schematic view of a partial cutaway structure of a housing according to an embodiment of the present invention;

FIG. 4 shows a schematic structural view of a mounting assembly according to an embodiment of the invention;

FIG. 5 illustrates a schematic structural view of a rotor apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a heat sink according to an embodiment of the invention;

FIG. 7 shows a schematic structural diagram of a stator arrangement according to an embodiment of the invention;

fig. 8 shows a partially cut-away structure diagram of a connecting sleeve according to an embodiment of the invention;

FIG. 9 shows a schematic view of a connection assembly configuration according to an embodiment of the invention;

FIG. 10 shows a schematic diagram of a soft start assembly according to an embodiment of the invention;

FIG. 11 illustrates a front side view corner configuration of FIG. 10;

FIG. 12 shows a schematic view of a fixture according to an embodiment of the invention;

FIG. 13 is a schematic structural view of a loosening prevention assembly according to an embodiment of the present invention;

FIG. 14 is a longitudinal center sectional view schematically illustrating a loosening prevention assembly according to an embodiment of the present invention;

FIG. 15 is a schematic view showing a partially enlarged structure of the area A in FIG. 14;

FIG. 16 shows a schematic view of a support block and retainer plate configuration according to an embodiment of the present invention;

FIG. 17 shows a schematic structural diagram of a spacing assembly according to an embodiment of the invention;

FIG. 18 is a cross-sectional view of a central portion of a loosening prevention assembly according to an embodiment of the present invention;

fig. 19 is a partially enlarged schematic view of a region B in fig. 18.

List of reference numerals

1. Mounting the component; 101. a base; 1011. a through groove; 102. a housing; 103. an end cap; 104. a support frame; 105. a bearing; 2. a rotor device; 201. a rotating shaft; 2011. a through hole; 202. a rotor; 3. a heat sink; 301. a heat sink; 302. mounting a plate; 303. a heat sink; 4. a stator device; 401. a guide post A; 402. a stator; 403. a T-shaped plate; 404. a mounting seat; 405. adjusting a rod; 406. a threaded nail; 5. a connection assembly; 501. a connecting pin; 502. connecting blocks; 503. a limit needle; 504. connecting sleeves; 6. a soft start component; 601. connecting the disc; 602. mounting blocks; 603. a guide bar; 604. bending a spring; 605. a drive disc; 606. a guide block; 607. a drive shaft; 6071. fixing grooves; 7. a fixing device; 701. a fixed block; 702. an L-shaped plate; 703. a fixing pin; 704. a limiting ring; 8. an anti-loosening assembly; 801. a mounting frame; 802. a stabilizing plate; 803. installing a frame; 804. a support block; 8041. a limiting groove; 805. a limiting plate; 806. a limit pin; 9. a limiting component; 901. an L-shaped frame; 902. a guide post B; 903. a limiting block; 904. and (5) pulling the plate.

Detailed Description

In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.

Example (b): please refer to fig. 1 to fig. 19:

the invention provides a permanent magnet synchronous motor with high power density, which comprises a mounting component 1; the mounting assembly 1 is internally provided with a rotor device 2 and a stator device 4, the rotor device 2 is positioned inside the stator device 4, and the right side of the rotor device 2 is provided with a heat sink 3; the connecting assembly 5 is mounted on the left side of the rotor device 2, the soft start assembly 6 is mounted inside the connecting assembly 5, and two groups of fixing devices 7 are mounted on the left side of the connecting assembly 5; locking subassembly 8 that moves, locking subassembly 8 that moves are equipped with two sets ofly altogether, and two sets of locking subassemblies 8 that move install on installation component 1 to install spacing subassembly 9 on two sets of locking subassemblies 8 that move.

Further, according to an embodiment of the present invention, as shown in fig. 4 to 7, the mount assembly 1 includes: the base 101, two through grooves 1011 are arranged on the base 101 in a penetrating manner; a housing 102, wherein the housing 102 is fixedly arranged on the top of the base 101; the end cover 103, the end cover 103 is installed on the right side of the shell 102 through screws; two support frames 104 are arranged on the support frame 104, and the two support frames 104 are fixedly arranged inside the shell 102; the two bearings 105 are arranged on the two bearings 105, the two bearings 105 are arranged inside the two support frames 104, the rotating shaft 201 is connected with the two bearings 105, and a through hole 2011 is arranged on the rotating shaft 201 in a penetrating mode; rotor 202, rotor 202 fixed mounting is in the outside of pivot 201, and heat abstractor 3 includes: the heat dissipation seat 301, the heat dissipation seat 301 is fixedly connected with the rotating shaft 201; the mounting plate 302, the mounting plate 302 is fixedly arranged on the right side of the heat radiation seat 301; twelve cooling fins 303 are provided on the cooling fins 303, and twelve cooling fins 303 are fixedly mounted on the right side of the mounting plate 302, and the stator device 4 includes: four guide posts A401, wherein the guide posts A401 are arranged, and the four guide posts A401 are connected with the shell 102 in a sliding manner; the number of the stators 402 is two, and the two stators 402 are fixedly arranged at the inner ends of the four guide columns A401; the number of the T-shaped plates 403 and the number of the T-shaped plates 403 are two, and the two T-shaped plates 403 are fixedly arranged at the outer ends of the four guide posts A401; the mounting seat 404, the mounting seat 404 is fixedly mounted at the bottom of the shell 102; the adjusting rod 405 is rotatably installed on the installation base 404, the outer wall of the adjusting rod 405 is provided with bidirectional threads, and the adjusting rod 405 is in threaded connection with the two T-shaped plates 403; a screw 406, the screw 406 is installed at the bottom of the mounting seat 404, and the top of the screw 406 is tangent to the adjusting rod 405, which specifically functions as: the twelve radiating fins 303 are fixedly arranged on the right side of the mounting plate 302, and the radiating base 301 is fixedly connected with the rotating shaft 201, so that when the cooling screw is used, the twelve radiating fins 303 automatically rotate under the action of the rotating shaft 201, a good cooling effect is achieved on the interior of the shell 102, the damage caused by high temperature is avoided, the service life is prolonged, the adjusting rod 405 is rotatably arranged on the mounting base 404, the outer wall of the adjusting rod 405 is provided with bidirectional threads, the adjusting rod 405 is in threaded connection with the two T-shaped plates 403, the two T-shaped plates 403 are fixedly connected with the four guide posts A401, when a worker clockwise rotates the adjusting rod 405, the two stators 402 simultaneously move inwards under the action of the two T-shaped plates 403, when the worker anticlockwise rotates the adjusting rod 405, the two stators 402 simultaneously move outwards under the action of the two T-shaped plates 403, the worker can conveniently adjust the gap between the two stators 402 and the rotor 202, the two stators 402 and the rotor 202 are prevented from rubbing against each other, the occurrence of a bore sweeping phenomenon is avoided, the worker is convenient to assemble, the worker is also, the screw is arranged on the mounting base 404, the adjusting rod 406, the top of the screw is further, the adjusting rod 406 is ensured, and the reliability of the adjusting screw is improved.

Further, according to an embodiment of the present invention, as shown in fig. 8 to 12, the connection assembly 5 includes: the connecting pin 501, the connecting pin 501 is connected with the through hole 2011 in a sliding mode; the number of the connecting blocks 502 is two, and the two connecting blocks 502 are slidably mounted on the connecting pin 501; the limiting needle 503 is inserted and connected to the connecting pin 501; connecting sleeve 504, connecting sleeve 504 are fixed mounting in the left side of two connecting blocks 502, and soft start subassembly 6 includes: the connecting disc 601, the connecting disc 601 is fixedly installed at the left side of the rotating shaft 201, and the connecting disc 601 is located inside the connecting sleeve 504; the mounting block 602, the mounting block 602 is fixedly mounted on the connecting disc 601; the guide rod 603, the guide rod 603 is fixedly arranged on the mounting block 602; a bent spring 604, the bent spring 604 being mounted on the outside of the guide bar 603; a driving disk 605, the driving disk 605 is arranged at the left side of the connecting disk 601, and the driving disk 605 is positioned inside the connecting sleeve 504; the guide block 606 is fixedly arranged on the driving disc 605, and the guide block 606 is connected with the guide rod 603 in a sliding manner; a driving shaft 607, the driving shaft 607 is fixedly installed at the left side of the driving disk 605, and the outer wall of the driving shaft 607 is provided with two fixing slots 6071, the fixing device 7 comprises: the fixed block 701, the fixed block 701 is fixedly connected with the connecting sleeve 504; the L-shaped plate 702 is fixedly arranged on the outer side of the fixing block 701; the fixing pin 703 is slidably mounted on the fixing block 701 and the L-shaped plate 702, the fixing pin 703 is tangent to the driving shaft 607, and a spring is mounted outside the fixing pin 703; spacing ring 704, spacing ring 704 fixed mounting is in the outside of fixed pin 703, and the outside spring of fixed pin 703 is located between L template 702 and the spacing ring 704, and its concrete function does: because the mounting block 602 is fixedly mounted on the connecting disc 601, the guide rod 603 is fixedly mounted on the mounting block 602, the bent spring 604 is mounted outside the guide rod 603, and the guide block 606 is slidably connected with the guide rod 603, when the invention is started, the driving shaft 607 slowly rotates under the action of a load, so that an angle between the driving shaft 607 and the rotating shaft 201 is changed, at the moment, the bent spring 604 is extruded under the action of the guide block 606, when an angle deviation between the driving shaft 607 and the rotating shaft 201 is ninety degrees, the two fixing pins 703 are concentric with the two fixing grooves 6071, and the fixing pins 703 are slidably mounted on the fixing block 701 and the L-shaped plate 702 and are tangent to the driving shaft 607, and the spring outside the fixing pins 703 is positioned between the L-shaped plate 702 and the limiting ring 704, and further, when the angle deviation between the driving shaft 607 and the rotating shaft 201 is ninety degrees, the two fixing pins 703 are inserted and connected into the two fixing grooves 6071 under the action of the spring, thereby realizing the soft start of the invention, avoiding damage due to the load, and simultaneously, inserting and connecting the two fixing pins into the two fixing grooves 6071 after the start, and improving the reliability.

Further, according to an embodiment of the present invention, as shown in fig. 13 to 19, the loosening prevention assembly 8 includes: the mounting rack 801 is fixedly connected with the base 101; the number of the stabilizing plates 802 is three, the three stabilizing plates 802 are fixedly arranged on the inner side of the mounting frame 801, and the bottoms of the three stabilizing plates 802 are fixedly connected with the base 101; the mounting frame 803 is fixedly mounted at the bottom of the mounting frame 801; the supporting block 804 is installed inside the installation frame 803 in a sliding manner, a limiting groove 8041 is arranged on the front side of the supporting block 804, and three springs are installed on the top of the supporting block 804; the limiting plate 805 is fixedly arranged inside the supporting block 804; the limiting pin 806, the limiting pin 806 is slidably mounted on the mounting frame 803, and the rear end of the limiting pin 806 is inserted into the limiting groove 8041; the stop assembly 9 comprises: the L-shaped frame 901 and the L-shaped frame 901 are fixedly connected with the mounting frame 803; the number of the guide columns B902 is two, the two guide columns B902 are slidably mounted on the L-shaped frame 901, and springs are mounted outside the two guide columns B902; a limiting block 903, wherein the limiting block 903 is fixedly arranged at the inner ends of the two guide columns B902, and the limiting block 903 is connected with the mounting frame 803 in a sliding manner; the pulling plate 904, the pulling plate 904 fixed mounting is in the outer end of two guide posts B902, and its concrete effect does: because the bottom surfaces of the two supporting blocks 804 are flush with the base 101, when a worker pulls out the two limit pins 806 after the device is installed, the two supporting blocks 804 are in sliding connection with the two through grooves 1011, when the device loosens after long-term use, the two supporting blocks 804 automatically move downwards under the action of the springs, the two guide columns B902 are slidably installed on the L-shaped frame 901, the springs are installed outside the two guide columns B902, the limit blocks 903 are fixedly installed at the inner ends of the two guide columns B902, and the two limit blocks 903 are tightly attached to the two limit plates 805 under the action of the springs, so that the two supporting blocks 804 can only move downwards, the looseness of the device during long-term use is avoided, and the stability during use is improved.

The specific use mode and function of the embodiment are as follows: in the invention, firstly, a worker installs the base 101 at a proper position through a screw, then the invention is communicated with an external power supply, and then the two limit pins 806 are pulled out, when the invention is used, the twelve radiating fins 303 automatically rotate under the action of the rotating shaft 201, thereby having better cooling effect on the interior of the shell 102, avoiding the damage of the invention caused by high temperature, prolonging the service life, further, when the worker rotates the adjusting rod 405 clockwise, the two stators 402 simultaneously move inwards under the action of the two T-shaped plates 403, when the worker rotates the adjusting rod 405 anticlockwise, the two stators 402 simultaneously move outwards under the action of the two T-shaped plates 403, facilitating the worker to adjust the gap between the two stators 402 and the rotor 202, avoiding the two stators 402 from rubbing against the rotor 202, avoiding the occurrence of the phenomenon of sweeping, facilitating the assembly of the worker, and because the screw 406 is installed at the bottom of the installation seat 404, when the invention is started, the driving shaft 607 rotates slowly under the action of load, so that the angle between the driving shaft 607 and the rotating shaft 201 changes, the bent spring 604 is extruded under the action of the guide block 606, when the angle between the driving shaft 607 and the rotating shaft 201 deviates ninety degrees, the two fixing pins 703 are concentric with the two fixing grooves 6071, the fixing pins 703 are slidably mounted on the fixing block 701 and the L-shaped plate 702, the fixing pins 703 are tangent to the driving shaft 607, the springs outside the fixing pins 703 are positioned between the L-shaped plate 702 and the limiting ring 704, and when the angle between the driving shaft 607 and the rotating shaft 201 deviates ninety degrees, the two fixing pins 703 are inserted and connected into the two fixing grooves 6071 under the action of the springs, when the invention is loosened after long-time use, the two supporting blocks 804 automatically move downwards under the action of the springs, the two guide columns B902 are slidably mounted on the L-shaped frame 901, the springs are mounted outside the two guide columns B902, the limiting blocks 903 are fixedly mounted at the inner ends of the two guide columns B902, and the two limiting blocks 903 are tightly attached to the two limiting plates 805 under the action of the springs, so that the two supporting blocks 804 can only move downwards, the invention is prevented from being loosened during long-time use, and the stability during use is improved.

Finally, it should be noted that, when describing the positions of the components and the matching relationship between the components, the invention will be generally exemplified by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other components/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A permanent magnet synchronous machine having high power density, comprising:

a mounting assembly (1); the rotor device (2) and the stator device (4) are installed in the rotor device, the rotor device (2) is located in the stator device (4), and the heat dissipation device (3) is installed on the right side of the rotor device (2);

the connecting component (5) is arranged on the left side of the rotor device (2), the soft start component (6) is arranged inside the connecting component (5), and two groups of fixing devices (7) are arranged on the left side of the connecting component (5);

the anti-loosening assemblies (8) are provided with two groups, the two groups of anti-loosening assemblies (8) are arranged on the mounting assembly (1), and the two groups of anti-loosening assemblies (8) are provided with limiting assemblies (9);

wherein the mounting assembly (1) comprises: the base (101), two through grooves (1011) are arranged on the base (101) in a penetrating manner; the shell (102), the shell (102) is fixedly installed on the top of the base (101); the end cover (103), the end cover (103) is installed on the right side of the shell (102) through screws; the two support frames (104) are arranged, and the two support frames (104) are fixedly arranged in the shell (102); the two bearings (105) are arranged, and the two bearings (105) are arranged in the two support frames (104);

the rotor device (2) comprises: the rotating shaft (201), the rotating shaft (201) is connected with the two bearings (105), and a through hole (2011) penetrates through the rotating shaft (201); the rotor (202), the rotor (202) is fixedly installed outside the rotating shaft (201);

the connection assembly (5) comprises: the connecting pin (501), the connecting pin (501) is connected with the through hole (2011) in a sliding mode; the two connecting blocks (502) are arranged, and the two connecting blocks (502) are slidably mounted on the connecting pin (501); the limiting needle (503) is inserted and connected to the connecting pin (501); the connecting sleeves (504), the connecting sleeves (504) are fixedly arranged on the left sides of the two connecting blocks (502);

the soft start assembly (6) comprises: the connecting disc (601), the connecting disc (601) is fixedly arranged on the left side of the rotating shaft (201), and the connecting disc (601) is positioned inside the connecting sleeve (504); the mounting block (602), the mounting block (602) is fixedly mounted on the connecting disc (601); the guide rod (603), the guide rod (603) is fixedly installed on the mounting block (602); and the bending spring (604), the bending spring (604) is arranged outside the guide rod (603).

2. A permanent magnet synchronous machine with high power density according to claim 1, characterized in that: the anti-loosening assembly (8) comprises: the mounting rack (801) is fixedly connected with the base (101) on the mounting component (1); the number of the stabilizing plates (802) is three, the three stabilizing plates (802) are fixedly arranged on the inner side of the mounting frame (801), and the bottoms of the three stabilizing plates (802) are fixedly connected with the base (101); a mounting frame (803) fixedly mounted at the bottom of the mounting frame (801); the supporting block (804) is installed inside the installation frame (803) in a sliding mode, a limiting groove (8041) is formed in the front side of the supporting block (804), and three springs are installed on the top of the supporting block (804); a limit plate (805) fixedly mounted inside the support block (804); the limiting pin (806), the limiting pin (806) is installed on the mounting frame (803) in a sliding mode, and the rear end of the limiting pin (806) is inserted into the limiting groove (8041).

3. A permanent magnet synchronous machine with high power density according to claim 2, characterized in that: the spacing subassembly (9) includes: an L-shaped frame (901) fixedly connected with the mounting frame (803); two guide columns B (902) are arranged, the two guide columns B (902) are slidably mounted on the L-shaped frame (901), and springs are mounted outside the two guide columns B (902); a limiting block (903) which is fixedly arranged at the inner ends of the two guide columns B (902), and the limiting block (903) is connected with the mounting frame (803) in a sliding way; and the pulling plate (904) is fixedly arranged at the outer ends of the two guide columns B (902).

4. A permanent magnet synchronous machine with high power density according to claim 3, characterized in that: the heat sink (3) comprises: the heat radiation seat (301), the heat radiation seat (301) is fixedly connected with the rotating shaft (201); the mounting plate (302), the mounting plate (302) is fixedly mounted on the right side of the heat radiating seat (301); twelve radiating fins (303) are arranged on the radiating fins (303), and the twelve radiating fins (303) are fixedly arranged on the right side of the mounting plate (302);

the stator arrangement (4) comprises: the guide posts A (401) are provided with four guide posts A (401), and the four guide posts A (401) are connected with the shell (102) in a sliding manner; the number of the stators (402) is two, and the two stators (402) are fixedly arranged at the inner ends of the four guide columns A (401); the T-shaped plates (403) are arranged, the number of the T-shaped plates (403) is two, and the two T-shaped plates (403) are fixedly installed at the outer ends of the four guide columns A (401).

5. The permanent magnet synchronous motor with high power density according to claim 4, characterized in that: the stator arrangement (4) further comprises: the mounting seat (404), the mounting seat (404) is fixedly arranged at the bottom of the shell (102); the adjusting rod (405) is rotatably installed on the installation base (404), the outer wall of the adjusting rod (405) is provided with two-way threads, and the adjusting rod (405) is in threaded connection with the two T-shaped plates (403); the screw thread (406) is installed at the bottom of the installation seat (404), and the top of the screw thread (406) is tangent to the adjusting rod (405).

6. The permanent magnet synchronous motor with high power density according to claim 5, characterized in that: the soft start assembly (6) further comprises: the driving disc (605), the driving disc (605) is arranged at the left side of the connecting disc (601), and the driving disc (605) is positioned inside the connecting sleeve (504); the guide block (606), the guide block (606) is fixedly arranged on the driving disc (605), and the guide block (606) is connected with the guide rod (603) in a sliding way; the driving shaft (607), the driving shaft (607) is fixedly installed on the left side of the driving disc (605), and the outer wall of the driving shaft (607) is provided with two fixing grooves (6071).

7. The permanent magnet synchronous machine with high power density according to claim 6, characterized in that: the fixing device (7) comprises: the fixing block (701), the fixing block (701) is fixedly connected with the connecting sleeve (504); the L-shaped plate (702), the L-shaped plate (702) is fixedly arranged on the outer side of the fixing block (701); the fixing pin (703), the fixing pin (703) is installed on fixed block (701) and L-shaped template (702) slidably, and the fixing pin (703) is tangent with the drive shaft (607), and the outside of the fixing pin (703) is fitted with the spring; the limiting ring (704) is fixedly installed outside the fixing pin (703), and a spring outside the fixing pin (703) is located between the L-shaped plate (702) and the limiting ring (704).