CN218678667U

CN218678667U - Cooling type permanent magnet synchronous motor

Info

Publication number: CN218678667U
Application number: CN202223013626.5U
Authority: CN
Inventors: 张波; 申杨; 刘志超
Original assignee: Chuangyuan Yide Tianjin Group Co ltd
Current assignee: Chuangyuan Yide Tianjin Group Co ltd
Priority date: 2022-11-12
Filing date: 2022-11-12
Publication date: 2023-03-21
Anticipated expiration: 2032-11-12

Abstract

The utility model discloses a cooling type permanent magnet synchronous motor, which belongs to the field of synchronous motors and comprises a shell, an assembly seat and a cooling fan, wherein the assembly seat is fixedly connected at the tail end position of the shell, the cooling fan is arranged in the assembly seat, and the cooling fan is in transmission connection with a transmission shaft of the permanent magnet synchronous motor; the opening position joint of assembly seat has the end cover, the end cover surface is provided with the louvre, end cover fixed surface is connected with the protection casing. The protection casing is installed outside the heat dissipation holes of the end cover, when the permanent magnet synchronous motor works in a power-on mode, the transmission shaft drives the cooling fan to carry out air cooling and cooling treatment on the working environment inside the casing, heat discharged through the heat dissipation holes is discharged from the bottom opening position of the protection casing, a good heat dissipation effect is achieved, the protection casing shields the opening ends of the heat dissipation holes, and when the permanent magnet synchronous motor is used outdoors, rainwater is not prone to pouring into the inner side of the end cover, and the use safety is improved.

Description

Cooling type permanent magnet synchronous motor

Technical Field

The utility model relates to a synchronous machine field, more specifically say, relate to cooling type PMSM.

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. The cooling type permanent magnet synchronous motor with the current patent number of CN211239548U achieves the purpose of good heat dissipation of the cooling type permanent magnet synchronous motor, solves the problem of poor heat dissipation of the common permanent magnet synchronous motor, and can enable the motor to effectively dissipate heat, thereby prolonging the service life of the internal parts of the permanent magnet synchronous motor and further meeting the use requirements of people.

The permanent magnet synchronous motor adopts a water cooling mode, an external water pump and a water pipe are required to be matched for use, most of the existing permanent magnet synchronous motors are provided with cooling fans on the inner sides of end covers, however, the end covers are uniformly provided with radiating holes on the surfaces of the end covers for accelerating the circulation of air, and the radiating holes are arranged in an open mode, so that water liquid is easy to enter in the outdoor environment, the using effect is reduced, and the cooling permanent magnet synchronous motor is provided for solving the existing problems.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, the utility model aims to provide a cooling type PMSM, at the louvre outside installation protection casing of end cover, PMSM is in the circular telegram work, the transmission axle drives cooling fan and handles the inside operational environment forced air cooling of casing, discharge from its bottom open position along the protection casing through louvre exhaust heat, fine radiating effect has, and the protection casing shelters from the open end of louvre, during outdoor use, the rainwater is difficult for pouring into the end cover inboard, the security of use improves.

2. Technical scheme

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

The cooling type permanent magnet synchronous motor comprises a shell, an assembly seat and a cooling fan, wherein the assembly seat is fixedly connected to the tail end of the shell, the cooling fan is arranged in the assembly seat, and the cooling fan is in transmission connection with a transmission shaft of the permanent magnet synchronous motor;

the opening position joint of assembly seat has the end cover, the end cover surface is provided with the louvre, end cover fixed surface is connected with the protection casing, the protection casing covers establishes in louvre outside position, and the protection casing bottom is the open type setting, protection casing surface fixed connection has the copper-aluminum alloy welt.

Preferably, a rubber ring is bonded to the step surface of the assembling seat, and a positioning block is fixedly connected to the outer wall of the assembling seat.

Preferably, the end cover surface is provided with the constant head tank, the constant head tank of end cover corresponds with the locating piece joint of assembly seat outer wall.

Preferably, a copper-aluminum alloy gasket is inserted into the surface of the end cover, one end of the copper-aluminum alloy gasket extends to the inner wall of the end cover, and the other end of the copper-aluminum alloy gasket is located on the outer surface of the end cover.

Preferably, the circumference of the copper-aluminum alloy gasket is equidistantly provided with heat dissipation grooves.

Preferably, the outer surface of the end cover is fixedly connected with an air guide plate, and an air guide arc surface is arranged on the surface of the air guide plate.

Preferably, the air guide plate is located at a position below the open end of the shield.

3. Advantageous effects

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

(1) This scheme, at the louvre outside installation protection casing of end cover, PMSM is in the circular telegram work, and the transmission axle drives cooling fan and handles the inside operational environment forced air cooling of casing, discharges from its bottom open position along the protection casing through louvre exhaust heat, has fine radiating effect, and the protection casing shelters from the open end of louvre, and during outdoor use, the rainwater is difficult for pouring into the end cover inboard, improves the security of using.

(2) This scheme, when the relative assembly seat installation of end cover, the open position joint of end cover is in the assembly seat outside, and the constant head tank of end cover corresponds with the locating piece joint of assembly seat outer wall, and up to the rubber circle surface of end cover pressfitting to assembly seat, the leakproofness of improvement junction.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the connection structure between the housing and the cooling fan of the present invention;

FIG. 3 is a schematic view of the connection structure of the end cap and the protection cover of the present invention;

fig. 4 is another view angle structure diagram of the end cap and the protection cover of the present invention.

The reference numbers in the figures illustrate:

1. a housing; 2. assembling a seat; 201. positioning blocks; 202. a rubber ring; 3. a cooling fan; 4. an end cap; 401. positioning a groove; 402. heat dissipation holes; 5. a copper aluminum alloy gasket; 6. a protective cover; 7. copper-aluminum alloy lining board; 8. and an air guide plate.

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 making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-4, the cooling type permanent magnet synchronous motor includes a casing 1, an assembly seat 2 and a cooling fan 3, wherein the assembly seat 2 is fixedly connected to a rear end position of the casing 1, the cooling fan 3 is arranged inside the assembly seat 2, and the cooling fan 3 is in transmission connection with a transmission shaft of the permanent magnet synchronous motor;

the opening position joint of assembly seat 2 has

end cover

4, 4 surfaces of end cover are provided with

louvre

402, 4 fixed surface of end cover are connected with

protection casing

6, 6 covers of protection casing are established in louvre 402 outside position, and 6 bottoms of protection casing are the open type setting, 6 outer fixed surface of protection casing are connected with copper aluminum alloy welt 7.

It should be noted that, at the louvre 402 outside installation protection casing 6 of end cover 4, PMSM is in the circular telegram work, the transmission axle drives cooling fan 3 and handles the inside operational environment forced air cooling of casing 1, discharge from its bottom open position along protection casing 6 through louvre 402 exhaust heat, has fine radiating effect, and protection casing 6 shelters from the open end of louvre 402, during outdoor use, the rainwater is difficult for pouring into the end cover 4 inboardly, the security of using improves.

Example 2:

referring to fig. 2, rubber ring 202 is bonded to the step surface of assembly base 2, positioning block 201 is fixedly connected to the outer wall of assembly base 2, positioning groove 401 is arranged on the surface of end cover 4, and positioning groove 401 of end cover 4 corresponds to positioning block 201 of the outer wall of assembly base 2 in a clamping manner.

It should be noted that, when the end cover 4 is installed relative to the assembly base 2, the opening of the end cover 4 is clamped outside the assembly base 2, and the positioning groove 401 of the end cover 4 is clamped to the positioning block 201 on the outer wall of the assembly base 2, until the end cover 4 is pressed on the surface of the rubber ring 202 of the assembly base 2, the sealing performance of the joint is improved.

Example 3:

referring to fig. 3 and 4, a copper-aluminum alloy gasket 5 is inserted into the surface of the end cover 4, one end of the copper-aluminum alloy gasket 5 extends to the inner wall of the end cover 4, the other end of the copper-aluminum alloy gasket 5 is located on the outer surface of the end cover 4, and heat dissipation grooves are formed in the circumference of the copper-aluminum alloy gasket 5 at equal intervals.

It should be noted that the copper-aluminum alloy gasket 5 and the copper-aluminum alloy lining plate 7 on the outer surface of the protective cover 6 both have good heat conduction and auxiliary heat dissipation performance, and the accumulation of heat is reduced.

Example 4:

referring to fig. 2 and 3, an air guide plate 8 is fixedly connected to the outer surface of the end cover 4, an air guide arc surface is arranged on the surface of the air guide plate 8, and the air guide plate 8 is located below the opening end of the protective cover 6.

It should be noted that the air guide plate 8 is located at the position below the opening end of the protection cover 6, an air guide arc surface is arranged on the surface of the air guide plate 8, and the air discharged from the opening position of the protection cover 6 is circulated in an accelerating manner through the air guide arc surface of the air guide plate 8, so that the accumulation of heat is reduced.

When in use: the protective cover 6 is arranged outside the heat dissipation holes 402 of the end cover 4, when the permanent magnet synchronous motor is electrified to work, the transmission shaft drives the cooling fan 3 to cool the working environment inside the casing 1, heat discharged through the heat dissipation holes 402 is discharged from the bottom opening position of the protective cover 6 along the protective cover 6, the heat dissipation effect is good, the protective cover 6 shields the opening ends of the heat dissipation holes 402, rainwater is not easy to pour into the inner side of the end cover 4 when the permanent magnet synchronous motor is used outdoors, and the use safety is improved; the copper-aluminum alloy gasket 5 and the copper-aluminum alloy lining plate 7 on the outer surface of the protective cover 6 both have good heat conduction and auxiliary heat dissipation performance, and heat accumulation is reduced.

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. Cooling type PMSM, including casing (1), assembly seat (2) and cooling fan (3), its characterized in that: the assembly seat (2) is fixedly connected to the tail end of the machine shell (1), the cooling fan (3) is arranged in the assembly seat (2), and the cooling fan (3) is in transmission connection with a transmission shaft of the permanent magnet synchronous motor;

the opening position joint of assembly seat (2) has end cover (4), end cover (4) surface is provided with louvre (402), end cover (4) fixed surface is connected with protection casing (6), protection casing (6) cover is established in louvre (402) outside position, and protection casing (6) bottom is the opening formula setting, protection casing (6) surface fixed connection has copper aluminium alloy welt (7).

2. The cooling type permanent magnet synchronous motor according to claim 1, characterized in that: the rubber ring (202) is bonded to the step surface of the assembling seat (2), and the positioning block (201) is fixedly connected to the outer wall of the assembling seat (2).

3. The cooling type permanent magnet synchronous motor according to claim 1, characterized in that: the surface of the end cover (4) is provided with a positioning groove (401), and the positioning groove (401) of the end cover (4) corresponds to the positioning block (201) on the outer wall of the assembling seat (2) in a clamping mode.

4. The cooling type permanent magnet synchronous motor according to claim 1, characterized in that: the surface of the end cover (4) is spliced with a copper-aluminum alloy gasket (5), one end of the copper-aluminum alloy gasket (5) extends to the inner wall of the end cover (4), and the other end of the copper-aluminum alloy gasket (5) is located on the outer surface of the end cover (4).

5. The cooling type permanent magnet synchronous motor according to claim 4, characterized in that: the circumference equidistance of copper aluminum alloy packing ring (5) is provided with the radiating groove.

6. The cooling type permanent magnet synchronous motor according to claim 1, characterized in that: the outer surface of the end cover (4) is fixedly connected with an air guide plate (8), and an air guide arc surface is arranged on the surface of the air guide plate (8).

7. The cooling type permanent magnet synchronous motor according to claim 6, characterized in that: the air guide plate (8) is positioned below the opening end of the protective cover (6).