CN220754563U - Self-cooling permanent magnet synchronous motor with integrated motor drive - Google Patents
Self-cooling permanent magnet synchronous motor with integrated motor drive Download PDFInfo
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- CN220754563U CN220754563U CN202322263458.3U CN202322263458U CN220754563U CN 220754563 U CN220754563 U CN 220754563U CN 202322263458 U CN202322263458 U CN 202322263458U CN 220754563 U CN220754563 U CN 220754563U
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- motor
- permanent magnet
- self
- housing
- magnet synchronous
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000555745 Sciuridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model discloses a motor-driven integrated self-cooling permanent magnet synchronous motor, which comprises a motor, wherein an output shaft is arranged in the axial direction of the motor, radiating fins are distributed on the circumferential direction of the motor at intervals, radiating fins are distributed on the end surface of the motor, which is far away from the output shaft, a radiating unit is covered on one side of the motor, which is far away from the output shaft, a control groove is formed in the top of the motor, and a variable frequency driving unit is inserted in the control groove.
Description
Technical Field
The utility model belongs to the technical field of permanent magnet synchronous motors, and particularly relates to a motor-driven integrated self-cooling permanent magnet synchronous motor.
Background
The motors commonly used at present are brushless direct current motors, permanent magnet synchronous motors, squirrel cage asynchronous motors and switched reluctance motors;
the permanent magnet synchronous motor with integrated motor drive has high power density, high power factor, high efficiency, large starting torque and small noise, can control and regulate the running power according to the needs, and is widely applied to places such as coal mines, new energy automobiles, generators, air conditioners, vacuum pumps, coal cutter cutting parts and the like;
because the power density of the permanent magnet synchronous motor with the integrated motor drive is high, the motor and the controller are in the same inner cavity, and a large amount of heat can be generated in the operation process of the motor winding and the controller power device, the permanent magnet synchronous motor can be generally used in an external air cooling environment, and the normal operation of the permanent magnet synchronous motor is ensured;
in the fields of pumps, centrifugal fans, compressors and the like, the permanent magnet synchronous motor with the integrated motor drive can not generate air flow around products to help the motor cool during operation due to the limitation of the application environment;
in order to prevent overheating, the operation power of the permanent magnet synchronous motor can be reduced, or an external frequency converter is used, so that the cost is increased, and the installation space is limited. There is a need for a solution to the above-mentioned problems.
The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.
Disclosure of Invention
In order to solve the above problems, an object of the present utility model is to provide a self-cooling permanent magnet synchronous motor that performs self-cooling without external assistance in heat dissipation by mounting an axial flow fan controlled by a variable frequency drive unit at the motor tail.
In order to achieve the above purpose, the utility model provides a self-cooling permanent magnet synchronous motor with integrated motor driving, which comprises a motor, wherein an output shaft is arranged in the axial direction of the motor, radiating fins are distributed on the circumferential direction of the motor at intervals, radiating fins are distributed on the end surface of the motor, which is far away from the output shaft, a radiating unit is covered on one side of the motor, which is far away from the output shaft, a control groove is formed in the top of the motor, a variable frequency driving unit is inserted in the control groove, and the variable frequency driving unit is electrically connected with the motor and the radiating unit.
In one example, the heat dissipation unit comprises a housing, the housing is mounted at the tail of the motor far away from the output shaft, an axial flow fan is fixedly arranged in the housing, and a heat dissipation hole is formed in one side of the housing far away from the motor.
In one example, the housing is arc-shaped, and a plurality of positioning columns are distributed in the housing along the circumferential direction of the heat dissipation hole.
In one example, the axial flow fan is snap-fitted within a mounting bracket that is fixedly mounted with the positioning post within the housing.
In one example, a side of the housing remote from the motor is fitted with a star wind deflector.
In one example, the diameter of the housing is greater than the diameter of the motor.
In one example, the variable frequency drive unit comprises a control circuit board, wherein the bottom of the control circuit board is inserted into the control groove through a pipe sleeve, and the operation of the motor and the heat dissipation unit is controlled through a connecting line.
In one example, the variable frequency drive unit further comprises a protective housing, the protective housing cover is arranged on the control slot, an upper cover is arranged on the top cover of the protective housing, and a through hole for the line to pass out is formed in the side edge of the protective housing.
In one example, the motor is equipped with support feet on both sides of the bottom, which are fixed on the heat sink.
In one example, a reserved cartridge is mounted to a side of the motor.
The self-cooling permanent magnet synchronous motor integrated with motor driving can bring the following beneficial effects:
1. the heat radiation unit is arranged at the tail part of the motor and is controlled by the variable frequency driving unit for controlling the motor to operate, so that when the variable frequency driving unit detects that the temperature of an internal module is higher than a set value, the fan axial flow fan is started to radiate heat, and when the temperature is reduced to a reasonable state, the fan axial flow fan is stopped automatically, thereby ensuring that the motor can normally operate in an environment without an external heat radiation device, improving the system energy efficiency of the motor and the application range of the motor;
2. the protective shell is sleeved outside the control circuit board, so that the influence of the external environment on the control circuit board can be reduced, and the variable frequency driving unit can be ensured to normally operate;
3. through supporting legs and reservation clamping frame at motor circumference installation, make the motor both can install on ground, also can unsettled assembly, improve the application scope of motor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
fig. 1 is a schematic perspective view of a motor-driven integrated self-cooling permanent magnet synchronous motor according to the present utility model.
Fig. 2 is a front view of a motor-driven integrated self-cooling permanent magnet synchronous motor according to the present utility model.
Fig. 3 is a rear view of a motor-driven integrated self-cooling permanent magnet synchronous motor of the present utility model.
Fig. 4 is a bottom view of a motor-driven integrated self-cooling permanent magnet synchronous motor according to the present utility model.
Fig. 5 is a schematic structural view of the cover of the present utility model.
Fig. 6 is an exploded view of a motor-driven integrated self-cooling permanent magnet synchronous motor according to the present utility model.
Detailed Description
In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the description with reference to the terms "one aspect," "some aspects," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily for the same scheme or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
As shown in fig. 1 to 6, an embodiment of the utility model provides a self-cooling permanent magnet synchronous motor with integrated motor driving, which is characterized by comprising a motor 1, wherein an output shaft 11 is arranged in the axial direction of the motor 1, radiating fins 12 are circumferentially and alternately distributed on the motor 1, radiating fins 13 are distributed on the end surface of the motor 1 far away from the output shaft 11, a radiating unit 2 is covered on one side of the motor 1 far away from the output shaft 11, a control groove 14 is formed in the top of the motor 1, a variable frequency driving unit 3 is inserted in the control groove 14, and the variable frequency driving unit 3 is electrically connected with the motor 1 and the radiating unit 2.
Specifically, the heat dissipation unit 2 includes a housing 21, the housing 21 is mounted at the tail of the motor 1 far away from the output shaft 11, an axial flow fan 22 is fixedly arranged in the housing 21, a heat dissipation hole 211 is formed in one side of the housing 21 far away from the motor 1, and heat generated by the motor 1 is blown out from the heat dissipation hole 211 by starting the axial flow fan 22, so that the effect of reducing the temperature of the motor 1 is achieved.
Specifically, the casing 21 is arc-shaped, and a plurality of positioning columns 212 are distributed in the casing 21 along the circumferential direction of the heat dissipation hole 211.
Specifically, the axial flow fan 22 is embedded in the assembly frame 23, and the assembly frame 23 is fixedly mounted with the positioning column 212 in the housing 21, so as to fix the axial flow fan 22 in the housing 21 in a suspended manner, and prevent the axial flow fan 22 from shaking and falling off in the rotation working process.
Specifically, a side of the housing 21 far away from the motor 1 is provided with a star-shaped air guide 213 for dividing the heat dissipation hole 211 into a plurality of small holes for improving the flow velocity of the wind generated by the axial flow fan 22, so as to achieve the effect of improving the heat dissipation efficiency.
Specifically, the diameter of the casing 21 is larger than that of the motor 1, so that a gap is formed between the casing 21 and the circumferential direction of the motor 1, when the axial flow motor 1 operates, heat in the circumferential direction of the motor 1 flows in from the gap due to the operation of the axial flow motor 1, and then flows out from the heat dissipation holes 211 of the casing 21, so that the movement of the air volume is accelerated, and the heat dissipation efficiency is improved.
Specifically, the variable frequency drive unit 3 includes a control circuit board 31, and the bottom of the control circuit board 31 is inserted in the control slot 14 through a pipe sleeve 32, and controls the operation of the motor 1 and the heat dissipation unit 2 through a connection line.
Specifically, the variable frequency drive unit 3 further includes a protective housing 33, the protective housing 33 is covered on the control slot 14, an upper cover 34 is covered on the top of the protective housing 33, and a through hole 331 for the line to pass through is formed on the side of the protective housing 33.
Specifically, the motor 1 is provided with support legs 15 on both sides of the bottom, and the support legs 15 are fixed to the heat sink 12.
Specifically, the reserved clamping frame 16 is arranged on the side edge of the motor 1, and is used for clamping and embedding the suspended fittings in the reserved clamping frame 16 under the condition of no ground support, so that the effect of suspending the motor 1 is achieved, and the application range of the motor 1 is improved.
Working principle: through the normal operating of frequency conversion drive unit control motor, at motor operation in-process at first by install in motor circumferential fin collect the heat that the motor operation produced fast and disperse in the air around, reach the radiating mode of heat transfer, when the motor continuously operates or when high power is operated, motor temperature is too high, when just relying on the unable rapid cooling of fin, motor temperature can promote fast, when frequency conversion drive unit detects that the motor problem is higher than preset, start axial fan, the tail end of follow shroud with the heat that the motor produced is discharged through axial fan, and can adjust axial fan's operating speed according to the height of temperature through frequency conversion drive unit, thereby improve radiating efficiency, when the temperature reduces to normal condition, frequency conversion drive unit makes axial fan shut down, reduce the energy consumption.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.
Claims (10)
1. The utility model provides a integrative self-cooling PMSM of motor drive, its characterized in that, includes the motor, be provided with the output shaft in the axial of motor, the circumference interval distribution of motor has the fin, the motor is kept away from the terminal surface distribution of output shaft has the fin, the motor is kept away from one side lid of output shaft is equipped with the radiating element, the control groove has been seted up at the motor top, the control groove interpolation is equipped with variable frequency drive unit, variable frequency drive unit with motor and radiating element electric connection.
2. The motor-driven integrated self-cooling permanent magnet synchronous motor according to claim 1, wherein the heat dissipation unit comprises a housing, the housing is mounted at the tail of the motor far away from the output shaft, an axial flow fan is fixedly arranged in the housing, and a heat dissipation hole is formed in one side of the housing far away from the motor.
3. The self-cooling permanent magnet synchronous motor integrated with motor drive according to claim 2, wherein the housing is arc-shaped, and a plurality of positioning columns are distributed in the housing along the circumferential direction of the heat dissipation hole.
4. A self-cooling permanent magnet synchronous motor integrated with motor drive according to claim 3, wherein the axial flow fan is embedded in a mounting frame, and the mounting frame is fixedly installed with the positioning column in the housing.
5. A self-cooling permanent magnet synchronous motor according to claim 2, wherein the housing is provided with a star-shaped air guide on the side facing away from the motor.
6. A motor-driven integrated self-cooling permanent magnet synchronous motor according to claim 2, wherein the diameter of the housing is greater than the diameter of the motor.
7. The self-cooling permanent magnet synchronous motor integrated with motor drive according to claim 1, wherein the variable frequency drive unit comprises a control circuit board, the bottom of the control circuit board is inserted in the control groove through a pipe sleeve, and the operation of the motor and the heat dissipation unit is controlled through a connecting circuit.
8. The self-cooling permanent magnet synchronous motor integrated with motor drive according to claim 7, wherein the variable frequency drive unit further comprises a protective housing, the protective housing cover is arranged on the control slot, an upper cover is arranged on the top cover of the protective housing, and a through hole for a line to pass through is formed in the side edge of the protective housing.
9. A self-cooling permanent magnet synchronous motor integrated with motor drive according to claim 1, wherein the motor is provided with support feet on both sides of the bottom, and the support feet are fixed on the heat sink.
10. A self-cooling permanent magnet synchronous motor integrated with motor drive according to claim 1, wherein a reserved clamping frame is arranged on the side edge of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263458.3U CN220754563U (en) | 2023-08-23 | 2023-08-23 | Self-cooling permanent magnet synchronous motor with integrated motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263458.3U CN220754563U (en) | 2023-08-23 | 2023-08-23 | Self-cooling permanent magnet synchronous motor with integrated motor drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220754563U true CN220754563U (en) | 2024-04-09 |
Family
ID=90564884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322263458.3U Active CN220754563U (en) | 2023-08-23 | 2023-08-23 | Self-cooling permanent magnet synchronous motor with integrated motor drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220754563U (en) |
-
2023
- 2023-08-23 CN CN202322263458.3U patent/CN220754563U/en active Active
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