CN219938126U

CN219938126U - Permanent magnet synchronous motor for compressor

Info

Publication number: CN219938126U
Application number: CN202321108047.0U
Authority: CN
Inventors: 黄俊锋
Original assignee: Quanzhou Huade Electromechanical Equipment Co ltd
Current assignee: Quanzhou Huade Electromechanical Equipment Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-10-31
Anticipated expiration: 2033-05-10

Abstract

The utility model relates to the technical field of compressors, in particular to a permanent magnet synchronous motor for a compressor, which comprises a shell, wherein a motor shaft is arranged on the shell, one side of the shell is covered with a cover plate, a first dustproof net is fixedly embedded on the cover plate, a shaft sleeve which is rotatably arranged with the motor shaft is fixedly embedded on the first dustproof net, a bearing which is rotatably arranged with the motor shaft is fixedly arranged on the shell, an adapter block is fixedly arranged at one end of the motor shaft, an adapter seat is sleeved on the adapter block in a sliding way, and blades are fixedly arranged on the adapter seat. According to the utility model, the blade structure is arranged in the shell, and meanwhile, the shell is in butt joint with the motor shaft, so that when the motor works, the motor shaft rotates and then synchronously rotates, and ventilation and heat dissipation in the shell can be realized by matching with the dustproof screens on two sides.

Description

Permanent magnet synchronous motor for compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to a permanent magnet synchronous motor for a compressor.

Background

The compressor is a driven fluid machine that lifts low pressure gas to high pressure gas and is the heart of the refrigeration system.

The refrigerating cycle of compression, condensation (heat release), expansion and evaporation (heat absorption) is realized by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the air discharge pipe to provide power for the refrigerating cycle.

The compressor is produced in a flow line mode, and parts such as a cylinder body, a piston (rotating shaft), a valve plate, a connecting rod, a crankshaft, an end cover and the like are manufactured in a machining workshop (including casting); assembling a rotor and a stator between electric locomotives; and manufacturing a shell and the like in a stamping workshop, then assembling, welding, cleaning and drying in a final assembly workshop, and finally packaging and leaving a factory after qualified inspection.

The synchronous motor of the compressor is an alternating current motor which generates torque by the interaction of an exciting magnetic field of direct current power supply and a rotating magnetic field of an armature and rotates at a synchronous rotating speed.

At present, when the motor of compressor is in use, because most adopt the mode of built-in casing, when the whole continuous operation of compressor, the motor is as main output electrical apparatus, can produce a large amount of heats, if adopt conventional heat conduction board or peripheral hardware fan to dispel the heat, hardly carry out the air current circulation cooling to the inside of motor, greatly reduced the life of motor rotor and stator.

Disclosure of Invention

The utility model aims to provide a permanent magnet synchronous motor for a compressor, which is used for solving the problem that the synchronous motor can internally perform high-efficiency heat dissipation.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a PMSM for compressor, includes the casing, be provided with the motor shaft on the casing, one side of casing is covered with the apron, fixed embedding has first dust screen on the apron, first dust screen is fixed to be embedded with the axle sleeve that rotates the setting with the motor shaft, be fixed with the bearing that rotates the setting with the motor shaft on the casing, the one end of motor shaft is fixed with the joint piece, the slip cap is equipped with the joint seat on the joint piece, be fixed with the blade on the joint seat.

Preferably, the other side of the shell is covered with an end cover, and a second dustproof net is fixedly embedded in the end cover.

Preferably, a threaded rod is fixed on the shell, and a lantern ring which is in threaded arrangement with the threaded rod is fixed on the end cover.

Preferably, a thread cap is arranged on the threaded rod in a threaded manner, and the thread cap is in contact and cling to the lantern ring.

Preferably, the connecting block is provided with a groove, a bayonet lock is sleeved in the groove in a sliding way, and the bayonet lock is fixedly connected with the groove through a spring.

Preferably, the connecting seat is provided with a through hole, and the bayonet lock is sleeved with the through hole in a sliding manner.

Preferably, the shell is fixedly provided with a base, the base is wrapped with a buffer layer, and the buffer layer is wrapped with a mounting seat.

Preferably, the lower end of the mounting seat is fixed with a bottom plate, and the bottom plate is provided with mounting holes.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the blade structure is arranged in the shell, and meanwhile, the shell is in butt joint with the motor shaft, so that when the motor works, the motor shaft rotates and then synchronously rotates, and ventilation and heat dissipation in the shell can be realized by matching with the dustproof screens on two sides.

2. According to the utility model, the buffer layer structure is added between the base and the mounting seat, so that the motor has the effects of shock absorption and noise reduction when the motor works.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged partial schematic view of a bayonet portion of the present utility model;

FIG. 3 is a schematic view of the distribution of mounting holes according to the present utility model.

In the figure: 1. a housing; 11. a motor shaft; 12. a cover plate; 13. a first dust screen; 14. a shaft sleeve; 15. a bearing; 16. a joint block; 17. a connecting seat; 18. a blade; 2. an end cap; 21. a second dust screen; 22. a collar; 23. a threaded rod; 24. a threaded cap; 3. a groove; 31. a bayonet lock; 32. a spring; 33. a through hole; 4. a base; 41. a buffer layer; 42. a mounting base; 43. a bottom plate; 44. and (5) mounting holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example I

Referring to fig. 1-3, a permanent magnet synchronous motor for a compressor includes a housing 1, a motor shaft 11 is provided on the housing 1, a cover plate 12 is covered on one side of the housing 1, a first dust screen 13 is fixedly embedded in the cover plate 12, a shaft sleeve 14 rotatably provided with the motor shaft 11 is fixedly embedded in the first dust screen 13, a bearing 15 rotatably provided with the motor shaft 11 is fixed on the housing 1, a connecting block 16 is fixed at one end of the motor shaft 11, a connecting seat 17 is slidably sleeved on the connecting block 16, and a blade 18 is fixed on the connecting seat 17.

Further, the other side of the shell 1 is covered with the end cover 2, the second dustproof net 21 is fixedly embedded in the end cover 2, and the first dustproof net 13 and the second dustproof net 21 are made of stainless steel materials, so that the anti-rust and corrosion-resistant effects are good.

Further, the threaded rod 23 is fixed on the shell 1, and the lantern ring 22 which is arranged in a threaded manner with the threaded rod 23 is fixed on the end cover 2, so that the end cover 2 and the shell 1 can be quickly positioned and butted.

Further, the threaded rod 23 is provided with a threaded cap 24 in a threaded manner, and the threaded cap 24 is in contact and tightly attached to the collar 22, so that the end cover 2 and the casing 1 can be quickly assembled and disassembled when the components in the casing 1 are maintained.

Further, the connecting block 16 is provided with a groove 3, a bayonet lock 31 is sleeved in the groove 3 in a sliding manner, the bayonet lock 31 is fixedly connected with the groove 3 through a spring 32, the spring 32 is in a balanced state, the penetration and butt joint stability of the bayonet lock 31 and the through hole 33 is ensured, and the spring 32 ensures the compression reset stability of the bayonet lock 31.

Further, the connecting seat 17 is provided with a through hole 33, the bayonet lock 31 is sleeved with the through hole 33 in a sliding manner, and the bayonet lock 31 is pressed to enable the compression spring 32 to be separated from the through hole 33, so that the connecting seat 17 and the connecting block 16 are detached, and the blades 18 and the motor shaft 11 are separated.

Further, be fixed with base 4 on the casing 1, the parcel has buffer layer 41 on the base 4, and the parcel has mount pad 42 on the buffer layer 41, and buffer layer 41 is rubber material, can avoid the motor during operation, produces the vibration to cause the organism of compressor to rock and produce and cause, buffer layer 41 carries out the antidetonation buffering, the noise reduction's of becoming phase production.

Further, the bottom plate 43 is fixed at the lower end of the mounting seat 42, the bottom plate 43 is provided with mounting holes 44, the number of the mounting holes 44 is ten, the mounting holes are uniformly distributed, and the inner wall of the mounting hole 44 can be a smooth surface or a threaded surface.

When the embodiment is used, the following steps are adopted: when the inside heat dissipation of the shell 1 is needed, after the motor shaft 11 starts to rotate, the blades 18 rotate through the linkage effect to generate air flow, and the inside ventilation heat dissipation of the shell 1 can be realized by matching with the distribution of dust screens on two sides.

When the motor needs to be installed, the installation seat 42 and the body of the compressor can be installed through the installation holes 44 of the bottom plate 43 and the matching screws, and the buffer layer 41 can play a role in buffering and noise reduction of the motor during operation.

When the inside maintenance of the motor is required for the blade 18, the screw cap 24 can be rotated to be separated from the threaded rod 23 by screw threads, so that the collar 22 is separated from the threaded rod 23, the end cover 2 and the shell 1 are disassembled, then the bayonet lock 31 is pressed to separate the compression spring 32 from the through hole 33, the disassembly of the connecting seat 17 and the connecting block 16 is completed, and the separation of the blade 18 and the motor shaft 11 is realized.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Permanent magnet synchronous motor for compressors, comprising a housing (1), characterized in that: be provided with motor shaft (11) on casing (1), one side of casing (1) is covered with apron (12), fixed embedding has first dust screen (13) on apron (12), fixed embedding has axle sleeve (14) that rotate with motor shaft (11) and set up on first dust screen (13), be fixed with on casing (1) with motor shaft (11) rotate bearing (15) that set up, the one end of motor shaft (11) is fixed with joint block (16), the slip cap is equipped with joint seat (17) on joint block (16), be fixed with blade (18) on joint seat (17).

2. A permanent magnet synchronous motor for a compressor according to claim 1, wherein: the other side of the shell (1) is covered with an end cover (2), and a second dustproof net (21) is fixedly embedded in the end cover (2).

3. A permanent magnet synchronous motor for a compressor according to claim 2, wherein: a threaded rod (23) is fixed on the shell (1), and a lantern ring (22) which is in threaded arrangement with the threaded rod (23) is fixed on the end cover (2).

4. A permanent magnet synchronous motor for a compressor according to claim 3, wherein: the threaded rod (23) is provided with a threaded cap (24) in a threaded manner, and the threaded cap (24) is in contact and cling to the lantern ring (22).

5. A permanent magnet synchronous motor for a compressor according to claim 1, wherein: the connecting block (16) is provided with a groove (3), a bayonet lock (31) is sleeved in the groove (3) in a sliding mode, and the bayonet lock (31) is fixedly connected with the groove (3) through a spring (32).

6. A permanent magnet synchronous motor for a compressor according to claim 5, wherein: the connecting seat (17) is provided with a through hole (33), and the bayonet lock (31) and the through hole (33) are sleeved in a sliding mode.

7. A permanent magnet synchronous motor for a compressor according to claim 1, wherein: the shell (1) is fixedly provided with a base (4), the base (4) is wrapped with a buffer layer (41), and the buffer layer (41) is wrapped with an installation seat (42).

8. A permanent magnet synchronous motor for a compressor according to claim 7, wherein: the lower extreme of mount pad (42) is fixed with bottom plate (43), is provided with mounting hole (44) on bottom plate (43).