CN218888288U

CN218888288U - Permanent magnet synchronous motor protection device

Info

Publication number: CN218888288U
Application number: CN202223287109.7U
Authority: CN
Inventors: 申杨; 王玉富; 刘志超
Original assignee: Chuangyuan Yide Tianjin Group Co ltd
Current assignee: Chuangyuan Yide Tianjin Group Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-18
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a PMSM protector belongs to PMSM protection field, a PMSM protector, including the PMSM main part, the outside of PMSM main part is provided with the protection casing, the both sides fixed mounting of protection casing has the supporting leg, just the supporting leg is located the both sides of protection casing bottom and one side uncovered department, two the top of supporting leg all is provided with the bolt, the opposite side fixed mounting of protection casing has radiator fan, the ventilation hole has evenly been seted up to one side of protection casing, the position in ventilation hole and radiator fan's the mutual symmetry in position, one side and the bottom of protection casing are uncovered form, just the protection casing cup joints to the outside of PMSM main part, and it can realize playing the outside effect of preventing colliding with to PMSM to and can effectually prevent that PMSM during operation from transshipping and producing the phenomenon of high temperature.

Description

Permanent magnet synchronous motor protection device

Technical Field

The utility model relates to a PMSM protection field, more specifically say, relate to a PMSM protector.

Background

The permanent magnet synchronous motor uses the permanent magnet to provide excitation, 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 integral pitch winding, and can also adopt a distributed short pitch winding and an unconventionality winding.

Based on the above, the present inventors found that: in the use of the permanent magnet synchronous motor, the permanent magnet synchronous motor is directly connected with a preset fixing base through a bolt, however, the permanent magnet synchronous motor cannot play a protection role, the outside of the permanent magnet synchronous motor is impacted by foreign matters, the permanent magnet synchronous motor and the fixing base are loosened, the permanent magnet synchronous motor can be unstable and shake when working, and a shaft breaking phenomenon can be generated when the permanent magnet synchronous motor works seriously.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a PMSM protector, it can realize playing the outside effect of preventing colliding with to PMSM to and can effectually prevent that PMSM during operation from transshipping and producing the phenomenon of high temperature.

2. Technical scheme

In order to solve the problem, the utility model adopts the following technical proposal.

The utility model provides a PMSM protector, includes the PMSM main part, the outside of PMSM main part is provided with the protection casing, the both sides fixed mounting of protection casing has the supporting leg, just the supporting leg is located the both sides of the uncovered department in protection casing bottom and one side, two the top of supporting leg all is provided with the bolt, the opposite side fixed mounting of protection casing has radiator fan, the ventilation hole has evenly been seted up to one side of protection casing, the position in ventilation hole and radiator fan's the mutual symmetry in position.

Furthermore, one side and the bottom of protection casing are open form, just the protection casing connects to the outside of PMSM main part in a sleeving manner.

Furthermore, slots are evenly formed in the edge of the outer wall of the cooling fan frame body, connecting rods are inserted into the slots, one ends of the connecting rods are fixedly connected with dust covers, and one sides of the dust covers are tightly attached to one sides of the cooling fan frame body.

Further, a pair of cavities is formed in the outer wall of the connecting rod, a fixing spring is fixedly mounted inside the cavities, a fixing head is fixedly mounted at one end of the fixing spring, and a pair of fixing holes are formed in the inner wall of the slot.

Furthermore, one end of the fixing head is inserted into the fixing hole, and both the one end of the fixing head and the fixing hole are arc-shaped.

Further, the opening has been seted up to the outer wall of protection casing, just the one end of opening extends to the uncovered department of protection casing one side, the top fixed mounting of PMSM main part has three screw rod, and three the one end of screw rod all extends to the outside of protection casing through the opening, the one end of screw rod has the nut through threaded connection, just the one end of nut is laminated with the outer wall of protection casing each other.

Furthermore, a buffer spring is sleeved on the outer side of each screw rod, one end of each buffer spring is tightly attached to the top end of the permanent magnet synchronous motor main body, and the other end of each buffer spring is tightly attached to the inner wall of the protective cover.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) This scheme, through setting up the protection casing, radiator fan and supporting leg, after this PMSM main part comes into operation, through cup jointing the protection casing in the outside of PMSM main part, and pass through bolted connection with the supporting leg of protection casing both sides and predetermined unable adjustment base, can effectually protect the outside of PMSM main part, prevent that outside foreign matter from colliding with the PMSM main part, cause PMSM main part and unable adjustment base to produce not hard up phenomenon, utilize the radiator fan of protection casing one side to blow the inside of protection casing inside and PMSM main part with the air simultaneously, can effectually prevent that PMSM main part during operation from transshipping and producing high temperature, can effectually protect the PMSM main part through the device, stability when promoting the PMSM main part and using.

(2) This scheme, through setting up the dust cover, fixed spring and fixed head, when radiator fan dispelled the inside heat of PMSM main part, can effectually prevent through the dust cover that the dust from getting into the inside of PMSM main part and protection casing, utilize fixed spring's elasticity simultaneously, can play fixed head to the fixed orifices of slot inner wall in, the dust cover that makes can be firm fix in radiator fan's one side, can make things convenient for the staff to dismantle the clearance with the dust cover simultaneously.

Drawings

FIG. 1 is a right perspective view of the structure of the present invention;

FIG. 2 is a left-side view of the structure of the present invention;

FIG. 3 is a schematic view of the connecting rod structure of the present invention;

fig. 4 is the structure right-view stereo-splitting schematic diagram of the utility model.

The reference numbers in the figures illustrate:

1. a permanent magnet synchronous motor main body; 2. a protective cover; 3. a heat-dissipating fan; 4. a vent hole; 5. a slot; 6. a connecting rod; 7. a dust cover; 8. a cavity; 9. a fixed spring; 10. a fixed head; 11. a fixing hole; 12. a port; 13. a screw; 14. a buffer spring; 15. a nut; 16. and (7) supporting legs.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Example (b):

please refer to fig. 1-4, a permanent magnet synchronous motor protection device, including permanent magnet synchronous motor main body 1, the outside of permanent magnet synchronous motor main body 1 is provided with protection casing 2, the both sides fixed mounting of protection casing 2 has supporting legs 16, and supporting legs 16 are located the both sides of protection casing 2 bottom and one side opening department, the top of two supporting legs 16 all is provided with the bolt, the opposite side fixed mounting of protection casing 2 has radiator fan 3, ventilation hole 4 has evenly been seted up to one side of protection casing 2, the position of ventilation hole 4 is symmetrical with radiator fan 3's position each other, can effectually prevent through the device that permanent magnet synchronous motor main body 1 from receiving colliding with of the foreign matter in the outside, and cause and unable adjustment base to produce not hard up phenomenon, simultaneously the device can the inside produced high temperature of effectual reduction permanent magnet synchronous motor main body 1.

Referring to fig. 1 and 2, one side and the bottom end of the protective cover 2 are both open, and the protective cover 2 is sleeved on the outer side of the permanent magnet synchronous motor main body 1; the slot 5 has evenly been seted up at the outer wall edge of radiator fan 3 framework, and the inside of slot 5 inserts and installs connecting rod 6, and the one end fixedly connected with dust cover 7 of connecting rod 6, and one side of dust cover 7 closely laminates with one side of radiator fan 3 framework, can effectually prevent through dust cover 7 that radiator fan 3 from causing the phenomenon that the dust got into when sending wind to protection casing 2 inside.

Referring to fig. 2 and 3, the outer wall of the connecting rod 6 is provided with a pair of cavities 8, the inside of the cavity 8 is fixedly provided with a fixed spring 9, one end of the fixed spring 9 is fixedly provided with a fixed head 10, and the inner wall of the slot 5 is provided with a pair of fixed holes 11; the one end of fixed head 10 inserts the inside of installing to fixed orifices 11, and the one end of fixed head 10 is arc with fixed orifices 11, through the elasticity of fixed spring 9, can be with fixed head 10 bullet to the inside of fixed orifices 11, has made things convenient for the staff to dismantle dust cover 7 from one side of radiator fan 3 and has got off and clean.

Referring to fig. 1, 2 and 4, the outer wall of the protective cover 2 is provided with a through hole 12, one end of the through hole 12 extends to an opening at one side of the protective cover 2, the top end of the main body 1 of the permanent magnet synchronous motor is fixedly provided with three screw rods 13, one ends of the three screw rods 13 extend to the outer side of the protective cover 2 through the through hole 12, one end of each screw rod 13 is connected with a screw cap 15 through threads, and one end of each screw cap 15 is attached to the outer wall of the protective cover 2; buffer spring 14 has been cup jointed in the outside of every screw rod 13, and buffer spring 14's one end and the top of PMSM main part 1 closely laminate, and buffer spring 14's the other end and the inner wall of protection casing 2 closely laminate, utilize screw rod 13 to extend to the outside of opening 12 through opening 12, overlap buffer spring 14 between PMSM main part 1 and opening 12 inner wall simultaneously, and twist the one end to screw rod 13 with nut 15, it is more stable when making protection casing 2 can fix with PMSM main part 1.

When in use: firstly, a permanent magnet synchronous motor main body 1 is fixed on a preset fixing base through a bolt by a worker, then a buffer spring 14 is sleeved outside a screw 13 at the top end of the permanent magnet synchronous motor main body 1, then a protective cover 2 is sleeved outside the permanent magnet synchronous motor main body 1, meanwhile, the screw 13 at the top end of the permanent magnet synchronous motor main body 1 extends to the outside of the protective cover 2 through an opening 12, so that the buffer spring 14 can be fully attached to the top end of the permanent magnet synchronous motor main body 1 and the inner wall of the protective cover 2, then a nut 15 is screwed to one end of the screw 13 by the worker, the permanent magnet synchronous motor main body 1 and the protective cover 2 are stably connected, meanwhile, the worker is used for connecting supporting legs 16 and the fixing base at two sides of the protective cover 2 through bolts, when the permanent magnet synchronous motor main body 1 works, a heat dissipation fan 3 can dissipate the temperature generated when the permanent magnet synchronous motor main body 1 works, meanwhile, the dust in wind can be filtered by the worker, when the dust cover 7 needs to be cleaned, the worker directly buckles the dust cover 7, the worker can clean the connecting rod 7, the fixing spring can be inserted into a fixing slot 5 of the fixing spring 5, and a fixing slot 5 of the dust cover 5 can be connected with the dust cover 5, and the dust dissipation head can be connected with the fixing spring 5.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a PMSM protector, includes PMSM main part (1), its characterized in that: the outside of permanent magnet synchronous motor main part (1) is provided with protection casing (2), the both sides fixed mounting of protection casing (2) has supporting leg (16), just supporting leg (16) are located the both sides of protection casing (2) bottom and one side opening department, two the top of supporting leg (16) all is provided with the bolt, the opposite side fixed mounting of protection casing (2) has radiator fan (3), ventilation hole (4) have evenly been seted up to one side of protection casing (2), the position of ventilation hole (4) and the mutual symmetry in position of radiator fan (3).

2. The permanent magnet synchronous motor protector according to claim 1, characterized in that: one side and the bottom of protection casing (2) are the open form, just protection casing (2) cup joint to the outside of permanent magnet synchronous motor main part (1).

3. The permanent magnet synchronous motor protector according to claim 1, characterized in that: the heat dissipation fan (3) is characterized in that a slot (5) is uniformly formed in the edge of the outer wall of the frame body of the heat dissipation fan (3), a connecting rod (6) is inserted into the slot (5), a dust cover (7) is fixedly connected to one end of the connecting rod (6), and one side of the dust cover (7) is tightly attached to one side of the frame body of the heat dissipation fan (3).

4. The protection device of the permanent magnet synchronous motor according to claim 3, characterized in that: a pair of cavities (8) is formed in the outer wall of the connecting rod (6), a fixing spring (9) is fixedly mounted inside the cavities (8), a fixing head (10) is fixedly mounted at one end of the fixing spring (9), and a pair of fixing holes (11) is formed in the inner wall of the slot (5).

5. The PMSM protection device of claim 4, wherein: one end of the fixing head (10) is inserted into the fixing hole (11), and both one end of the fixing head (10) and the fixing hole (11) are arc-shaped.

6. The permanent magnet synchronous motor protector according to claim 1, characterized in that: opening (12) have been seted up to the outer wall of protection casing (2), just the one end of opening (12) extends to the uncovered department of protection casing (2) one side, the top fixed mounting of permanent magnet synchronous motor main part (1) has three screw rod (13), and is three the one end of screw rod (13) all extends to the outside of protection casing (2) through opening (12), the one end of screw rod (13) has nut (15) through threaded connection, just the one end of nut (15) is laminated with the outer wall of protection casing (2) each other.

7. The protection device of the permanent magnet synchronous motor according to claim 6, characterized in that: every buffer spring (14) has been cup jointed in the outside of screw rod (13), just buffer spring (14)'s one end closely laminates with the top of permanent magnet synchronous motor main part (1), just buffer spring (14)'s the other end closely laminates with the inner wall of protection casing (2).