CN212412898U - Permanent magnet synchronous rotating motor - Google Patents
Permanent magnet synchronous rotating motor Download PDFInfo
- Publication number
- CN212412898U CN212412898U CN202020210182.6U CN202020210182U CN212412898U CN 212412898 U CN212412898 U CN 212412898U CN 202020210182 U CN202020210182 U CN 202020210182U CN 212412898 U CN212412898 U CN 212412898U
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- China
- Prior art keywords
- permanent magnet
- shell
- stator
- synchronous rotating
- magnet synchronous
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- Expired - Fee Related
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000009423 ventilation Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 6
- 229920001342 Bakelite® Polymers 0.000 claims description 4
- 239000004637 bakelite Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of motors, in particular to a permanent magnet synchronous rotating motor, which comprises an end cover, a bottom cover, a motor main body connected between the end cover and the bottom cover, and a main shaft sequentially penetrating the end cover, the motor main body and the bottom cover; the motor main body comprises a shell, an axis shell, a stator and a permanent magnet, wherein the axis shell is arranged in the shell and fixedly connected with the main shaft, the stator and the permanent magnet are arranged between the axis shell and the shell, and a coil winding is wound on the stator; the end cover is provided with a first vent hole, the bottom cover is provided with a second vent hole, the inner side of the axis shell is provided with a third vent hole, the first vent hole, the second vent hole and the third vent hole are communicated with each other, and the end cover is matched with the shell and the axis shell so that the coil winding is isolated on the outer side of the axis shell. The permanent magnet synchronous rotating motor can simultaneously ensure good heat dissipation effect of the motor during working and prevent the coil winding from being corroded by dust and water vapor in severe environment, improves the working efficiency of the motor and simultaneously prolongs the service life of the motor.
Description
Technical Field
The utility model relates to the technical field of electric machines, concretely relates to permanent magnet synchronous rotating electrical machines.
Background
The existing motor consists of a shell, a stator, a rotor, a front end cover, a rear end cover and an air cooling device. The air cooling device consists of a wind wheel, a rear fan cover and a plurality of radial radiating fins on the excircle of the shell. The wind wheel blows the air flow sucked by the fan cover through the radial radiating fins of the shell to achieve the air cooling effect. The motor heats the stator and the rotor mainly because the stator and the rotor relatively rotate to cause the stator and the rotor to heat, the heat of the stator and the rotor is conducted to the casing and the radiating fins from inside to outside to carry out air cooling in an indirect air cooling mode, the indirect air cooling effect is not as good as the direct air cooling effect, especially for a high-rotating-speed rotor, the heat productivity is large, the indirect heat conduction is slow, and the overheating phenomenon of the stator and the rotor can be caused. In addition, the existing motor can not ensure that the coil winding is not influenced by dust and water vapor in a severe environment when having a good heat dissipation effect, so that the working efficiency and the service life of the motor are reduced.
In view of the above, it is an urgent technical problem in the art to provide a new permanent magnet synchronous rotating electrical machine that overcomes the above drawbacks in the prior art.
Disclosure of Invention
An object of the utility model is to the above-mentioned defect of prior art, provide a permanent magnetism synchronous rotating electrical machines, guaranteed when the good radiating effect of motor during operation that coil winding is not corroded by dust and steam in the adverse circumstances, the work efficiency who improves the motor prolongs the life of motor simultaneously.
The purpose of the utility model can be realized by the following technical measures:
an embodiment of the utility model provides a permanent magnet synchronous rotating electrical machine, this permanent magnet synchronous rotating electrical machine includes:
the motor comprises an end cover, a bottom cover, a motor main body connected between the end cover and the bottom cover and a main shaft sequentially penetrating the end cover, the motor main body and the bottom cover;
the motor main body comprises a shell, an axis shell and a stator and a permanent magnet, wherein two ends of the shell are fixedly connected with the end cover and the bottom cover respectively, the axis shell is arranged in the shell and is fixedly connected with the main shaft, the stator and the permanent magnet are arranged between the axis shell and the shell, and a coil winding is wound on the stator;
the end cover is provided with a first ventilation hole, the bottom cover is provided with a second ventilation hole, the inner side of the axis shell is provided with a third ventilation hole, the first ventilation hole, the second ventilation hole and the third ventilation hole are communicated with each other, and the end cover is matched with the shell and the axis shell so that the coil winding is isolated outside the axis shell.
According to the utility model discloses an embodiment, outwards extend on the terminal surface of end cover and be formed with first bellying and the second bellying that the interval set up, first ventilation hole is located the inboard of second bellying, the end cover with during the motor main part installation, first bellying with the shell is connected, the second bellying with the terminal surface butt of axle center casing, so that locate the shell with part between the axle center casing holds between the first bellying with just first ventilation hole with the seamless butt joint of third ventilation hole.
According to an embodiment of the invention, the axle center casing is including being used for the installation the stator the main part of main shaft and follow the periphery of main part is to the installation the extension that the direction of bottom one side extends.
According to the utility model discloses an embodiment, the main part is including being used for the installation the first connecting portion of main shaft, be used for the installation the second connecting portion and the interval of stator are located first connecting portion with connecting block between the second connecting portion, first connecting portion the second connecting portion with form between the connecting block the third ventilation hole.
According to the utility model discloses an embodiment, the stator cover is established the outside of second connecting portion, the permanent magnet subsides are located the inner wall of shell, the permanent magnet is located the shell with between the stator.
According to the utility model discloses an embodiment, be equipped with the locating hole on the first connecting portion, the main shaft pass through the locating pin with the locating hole cooperation in order with the main shaft with first connecting portion fixed connection.
According to the utility model discloses an embodiment, one of shell is served and is equipped with first screw hole, be equipped with the second screw hole on the end cover, the screw through with first screw hole the cooperation of second screw hole is so that the end cover with the one end fixed connection of shell.
According to the utility model discloses an embodiment, be equipped with the third screw hole on the other end of shell, be equipped with the fourth screw hole on the bottom, the screw through with the third screw hole the cooperation of fourth screw hole is so that the bottom with the other end fixed connection of shell.
According to the utility model discloses an embodiment, the both ends of stator are equipped with the bakelite stick that is used for insulating.
According to the utility model discloses an embodiment, the axle center casing adopts the aluminium material to make, the shell adopts steel material to make.
The utility model discloses a synchronous rotating electrical machines of permanent magnetism utilizes end cover and axle center casing cooperation to isolate coil winding and ventilation passageway, guarantees when having guaranteed the good radiating effect of motor during operation that coil winding is not corroded by dust and steam in the adverse circumstances, improves the work efficiency of motor and prolongs the life of motor simultaneously.
Drawings
Fig. 1 is an explosion structure diagram of the permanent magnet synchronous rotating electrical machine of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the permanent magnet synchronous rotating electrical machine according to the present invention after installation.
Fig. 3 is a front view of the permanent magnet synchronous rotating electrical machine of fig. 2.
Fig. 4 is a schematic diagram of the explosion structure of the motor main body of the present invention.
Fig. 5 is a bottom view of the permanent magnet synchronous rotating electrical machine of fig. 2.
Fig. 6 is a schematic view of the installation structure of the axle center housing of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following, many aspects of the present invention will be better understood with reference to the drawings. The components in the drawings are not necessarily to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, in the several views of the drawings, like reference numerals designate corresponding parts.
The word "exemplary" or "illustrative" as used herein means serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" or "illustrative" is not necessarily to be construed as preferred or advantageous over other embodiments. All of the embodiments described below are exemplary embodiments provided to enable persons skilled in the art to make and use the examples of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. In other instances, well-known features and methods have been described in detail so as not to obscure the invention. For purposes of the description herein, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," and derivatives thereof shall relate to the invention as oriented in fig. 1. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.
Fig. 1 is an exploded view of a permanent magnet synchronous rotating electrical machine, and fig. 2 and 3 are views illustrating the permanent magnet synchronous rotating electrical machine of fig. 1 after being installed, and referring to fig. 1 to 3, the permanent magnet synchronous rotating electrical machine includes: end cap 10, bottom cap 20, motor body 30, and main shaft 40. The motor main body 30 is connected between the end cover 10 and the bottom cover 20, the main shaft 40 penetrates through the end cover 10, the motor main body 30 and the bottom cover 20 in sequence, and the end cover 10, the motor main body 30 and the bottom cover 20 are fixedly installed.
Referring to fig. 4, the motor body 30 includes a housing 31 having two ends respectively fixedly connected to the end cap 10 and the bottom cap 20, an axis housing 32 disposed in the housing 31 and fixedly connected to the spindle 40, and a stator 33 and a permanent magnet 34 mounted between the axis housing 32 and the housing 31, wherein a coil winding is wound on the stator 33. In the present embodiment, the axial housing 32 is made of aluminum material, and the housing 31 is made of steel material. Referring to fig. 1 and 4, the stator 33 is sleeved outside the shaft center housing 32, the permanent magnet 34 is attached to the inner wall of the casing 31, and the permanent magnet 34 is located between the casing 31 and the stator 33. This arrangement minimizes the air gap between the stator 33 and the permanent magnet 34 to ensure higher operating efficiency of the motor.
In this embodiment, the outer rotor is composed of sixty pieces of magnetic poles of the arc sheet-shaped permanent magnet 34, the magnetic field direction is radial, the magnetic field directions of adjacent magnetic poles are opposite, wherein, thirty magnetic poles N are inward, thirty magnetic poles S are inward, and after the power supply is switched on, the coil winding generates a rotating magnetic field, thereby pushing the outer rotor to rotate.
Further, referring to fig. 1, fig. 2 and fig. 4, the end cap 10 is provided with a first vent hole 11, the bottom cap 20 is provided with a second vent hole 21, the inner side of the axle center housing 32 is provided with a third vent hole 321, the first vent hole 11, the second vent hole 21 and the third vent hole 321 are mutually communicated, and the end cap 10 is matched with the shell 31 and the axle center housing 32 to isolate the coil winding at the outer side of the axle center housing 32, so that the coil winding is isolated from the first vent hole 11, the second vent hole 21 and the third vent hole 321. The ventilation channel 1 formed by the first ventilation hole 11, the second ventilation hole 21 and the third ventilation hole 321 together can discharge dust and water vapor entering the motor, and meanwhile, the ventilation channel 1 is communicated with the external environment, so that heat generated by a coil winding in the working process of the motor can be taken away quickly.
Compare with traditional permanent-magnet synchronous rotating electrical machines, the permanent-magnet synchronous rotating electrical machines of this embodiment has good thermal diffusivity and dirt resistance, this permanent-magnet synchronous rotating electrical machines can be applied to the industrial fan, the problem that the motor power that leads to declines and coil winding high temperature burns out in the radiating effect is not good among the traditional industrial fan has been solved, not only complicated heat dissipation design has been saved, holistic weight has been simplified again, but also can guarantee the long-time steady operation of the motor in the industrial fan, realize non-maintaining for permanent-magnet synchronous rotating electrical machines in the industrial fan field, keep high power and increase of service life's application to provide the possibility.
Further, referring to fig. 1 and 4, the end surface of the end cover 10 extends outward to form a first protruding portion 12 and a second protruding portion 13 that are arranged at an interval, the first vent hole 11 is located inside the second protruding portion 13, when the end cover 10 is installed with the motor main body 30, the first protruding portion 12 is connected with the outer shell 31, and the second protruding portion 13 abuts against the end surface of the shaft center housing 32, so that the components arranged between the outer shell 31 and the shaft center housing 32 are accommodated between the first protruding portion 12 and the second protruding portion 13, and the first vent hole 11 is in seamless butt joint with the third vent hole 321. In the arrangement mode, the end cover 10 is matched with the axle center shell 32 to isolate the coil winding from the ventilation channel 1, so that the coil winding is prevented from being corroded by dust and water vapor in a severe environment, the working efficiency of the motor is improved, and the service life of the motor is prolonged.
Specifically, referring to fig. 1 and 2, a first threaded hole (not shown) is formed at one end of the housing 31, a second threaded hole 121 is formed in the first boss 12 of the end cap 10, and a screw is engaged with the first threaded hole and the second threaded hole 121 to fixedly connect the end cap 10 and one end of the housing 31. Referring to fig. 1, 4 and 5, a third threaded hole 311 is formed at the other end of the outer shell 31, a fourth threaded hole 22 is formed in the bottom cover 20, and screws are matched with the third threaded hole 311 and the fourth threaded hole 22 to fixedly connect the bottom cover 20 and the other end of the outer shell 31. The shell 31 is detachably connected with the end cover 10 and the bottom cover 20 through screws and threaded holes, so that the maintenance and the cleaning are convenient.
Further, referring to fig. 4, the shaft center housing 32 includes a main body 322 for mounting the stator 33 and the main shaft 40, and an extension 323 extending along a peripheral edge of the main body 322 toward a side where the bottom cover 20 is mounted. The axial center shell 32 is positioned at one side of the bottom cover 20, and the length of the outer wall is prolonged to prevent air from flowing back to damage the coil winding after the air enters the axial center shell 32 from the end cover 10, so that the service life of the motor is prolonged, and the maintenance cost is reduced.
Further, referring to fig. 4, the main body portion 322 includes a first connecting portion 3221 for mounting the main shaft 40, a second connecting portion 3222 for mounting the stator 33, and a connecting block 3223 disposed between the first connecting portion 3221 and the second connecting portion 3222 at an interval, and a third ventilation hole 321 is formed between the first connecting portion 3221, the second connecting portion 3222 and the connecting block 3223. Referring to fig. 1 and fig. 6, the first connecting portion 3221 is provided with a positioning hole 3 for accommodating the positioning pin 2, the main shaft 40 is provided with a groove 41 for matching with the positioning pin 2, and when the main shaft 40 is mounted on the shaft center housing 32, the positioning pin 2 is simultaneously engaged with the positioning hole 3 and the groove 41, so as to fixedly connect the main shaft 40 and the first connecting portion 3221. The stator 33 is sleeved outside the second connection portion 3222.
Further, referring to fig. 1, the two ends of the stator 33 are provided with the bakelite rod 50, and the bakelite rod 50 plays a role of insulation to prevent the two ends of the stator 33 from leaking electricity.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A permanent magnet synchronous rotating electrical machine, characterized by comprising:
the motor comprises an end cover, a bottom cover, a motor main body connected between the end cover and the bottom cover and a main shaft sequentially penetrating the end cover, the motor main body and the bottom cover;
the motor main body comprises a shell, an axis shell and a stator and a permanent magnet, wherein two ends of the shell are fixedly connected with the end cover and the bottom cover respectively, the axis shell is arranged in the shell and is fixedly connected with the main shaft, the stator and the permanent magnet are arranged between the axis shell and the shell, and a coil winding is wound on the stator;
the end cover is provided with a first ventilation hole, the bottom cover is provided with a second ventilation hole, the inner side of the axis shell is provided with a third ventilation hole, the first ventilation hole, the second ventilation hole and the third ventilation hole are communicated with each other, and the end cover is matched with the shell and the axis shell so that the coil winding is isolated outside the axis shell.
2. The permanent magnet synchronous rotating machine according to claim 1, wherein a first protruding portion and a second protruding portion are formed on an end face of the end cover in an outward extending manner, the first vent hole is located on an inner side of the second protruding portion, when the end cover is mounted with the motor main body, the first protruding portion is connected with the housing, the second protruding portion abuts against an end face of the shaft center housing, so that a component arranged between the housing and the shaft center housing is accommodated between the first protruding portion and the second protruding portion, and the first vent hole is in seamless butt joint with the third vent hole.
3. The permanent magnet synchronous rotating electrical machine according to claim 2, wherein the shaft center housing includes a main body portion for mounting the stator and the main shaft, and an extension portion extending along a peripheral edge of the main body portion in a direction of a side where the bottom cover is mounted.
4. The permanent magnet synchronous rotating electrical machine according to claim 3, wherein the main body portion includes a first connecting portion for mounting the main shaft, a second connecting portion for mounting the stator, and a connecting block provided at an interval between the first connecting portion and the second connecting portion, and the third ventilation hole is formed between the first connecting portion, the second connecting portion, and the connecting block.
5. The permanent magnet synchronous rotating electrical machine according to claim 4, wherein the stator is fitted around an outer side of the second connecting portion, the permanent magnet is attached to an inner wall of the housing, and the permanent magnet is located between the housing and the stator.
6. The permanent magnet synchronous rotating electrical machine according to claim 4, wherein a positioning hole is provided on the first connecting portion, and the main shaft is fitted with the positioning hole by a positioning pin to fixedly connect the main shaft with the first connecting portion.
7. The permanent magnet synchronous rotating electrical machine according to claim 1, wherein a first threaded hole is provided at one end of the housing, a second threaded hole is provided at the end cap, and a screw is engaged with the first threaded hole and the second threaded hole to fixedly connect the end cap and the one end of the housing.
8. The permanent magnet synchronous rotating electrical machine according to claim 7, wherein a third screw hole is provided at the other end of the housing, a fourth screw hole is provided at the bottom cover, and a screw is engaged with the third screw hole and the fourth screw hole to fixedly connect the bottom cover to the other end of the housing.
9. The permanent magnet synchronous rotating electrical machine according to claim 1, wherein both ends of the stator are provided with bakelite bars for insulation.
10. The permanent magnet synchronous rotating electrical machine according to claim 1, wherein the shaft center housing is made of an aluminum material, and the housing is made of a steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210182.6U CN212412898U (en) | 2020-02-25 | 2020-02-25 | Permanent magnet synchronous rotating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210182.6U CN212412898U (en) | 2020-02-25 | 2020-02-25 | Permanent magnet synchronous rotating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212412898U true CN212412898U (en) | 2021-01-26 |
Family
ID=74400615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020210182.6U Expired - Fee Related CN212412898U (en) | 2020-02-25 | 2020-02-25 | Permanent magnet synchronous rotating motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212412898U (en) |
-
2020
- 2020-02-25 CN CN202020210182.6U patent/CN212412898U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 |