CN113794314B - Low-noise energy-saving three-phase permanent magnet alternating current synchronous motor - Google Patents
Low-noise energy-saving three-phase permanent magnet alternating current synchronous motor Download PDFInfo
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- CN113794314B CN113794314B CN202111189195.5A CN202111189195A CN113794314B CN 113794314 B CN113794314 B CN 113794314B CN 202111189195 A CN202111189195 A CN 202111189195A CN 113794314 B CN113794314 B CN 113794314B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 238000005192 partition Methods 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 239000000110 cooling liquid Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the field of motors, and particularly relates to a low-noise energy-saving three-phase permanent magnet alternating current synchronous motor which comprises a motor body, wherein a rear cover is detachably fixed at the tail end of the motor body, and a dust screen is fixed on the outer wall of the rear cover. According to the invention, the cooling liquid is pumped by the liquid pump, firstly, the control box is cooled through the second annular cavity, and then, the cooling liquid enters the first annular cavity of the stator for secondary cooling, so that the efficient heat dissipation can be effectively performed on places with much heat generated by the motor, and meanwhile, the power of the liquid pump can be regulated according to the temperature fed back by the temperature sensor, so that the heat dissipation accuracy is ensured.
Description
Technical Field
The invention relates to the field of motors, in particular to a low-noise energy-saving three-phase permanent magnet alternating current synchronous motor.
Background
The three-phase permanent magnet synchronous motor is excited by the permanent magnets, so that the motor has a simpler structure, the processing and assembly 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 of not needing the exciting current, there is not loss of excitation, has raised efficiency and power density of the electric motor, thus have energy-conserving characteristic, and have the characteristic of the low noise compared with the past electrical machinery.
Current PMSM is at the in-process of in-service use, because self can produce vibrations to can lead to the fact the influence to the electrical components of motor control box inside, influence its life, in addition at the in-process of in-service use, can produce the heat, dispel the heat through the thermovent, the radiating efficiency is low, long-term heat gathering, thereby influence the life of motor. For this reason, new technical solutions need to be designed to solve the problems.
Disclosure of Invention
The invention aims to provide a low-noise energy-saving three-phase permanent magnet alternating current synchronous motor, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a low-noise energy-saving three-phase permanent magnet alternating current synchronous motor comprises a motor body, wherein a rear cover is detachably fixed at the tail end of the motor body, and a dust screen is fixed on the outer wall of the rear cover;
the control box is fixed at the top of the motor body and comprises a box body, a second toroidal cavity is arranged in the box body, a control element is installed in the box body, two side walls of the control element are connected with the inner wall of the box body through a first damper, the bottom of the control element is connected with the bottom of an inner cavity of the box body through a second damper, a controller is fixed at the top of the control element, the outer wall of the box body is communicated with a water inlet pipe and communicated with the second toroidal cavity, the other side of the second toroidal cavity is communicated with a liquid pump, the liquid pump is fixed at the top of the motor body, a water tank is fixed at the left side of the top of the motor body, a second conduit is communicated with the outer wall of the water tank, a first toroidal cavity is arranged on a stator of the inner wall of the motor body, and the second conduit penetrates through the outer wall of the motor body and is communicated with the first toroidal cavity, the bottom of the first annular cavity is communicated with a water outlet pipe, and a temperature sensor is embedded in the inner wall of the stator of the motor body;
the inner wall of the water tank is provided with a rotating shaft, a partition plate is fixedly mounted in the middle of the inner cavity of the water tank, one end of the rotating shaft is rotatably connected with the right side wall of the inner cavity of the water tank, the outer end of the rotating shaft penetrates through the partition plate, the first transmission wheel is fixedly connected with the water tank, an extension plate is fixed on the left side wall of the water tank, a short shaft is rotatably connected to the lower side of the inner wall of the extension plate, a second transmission wheel is fixedly sleeved on the outer wall of the short shaft, a brush rod and a brush rod fixedly connected with the outer wall of the short shaft are attached to the outer wall of a dust screen, the first transmission wheel and the second transmission wheel are connected through a transmission belt, a plurality of identical blades are uniformly distributed on the outer wall of the right end of the rotating shaft, the outer end of a liquid pump is communicated with a first conduit, and the first conduit is inserted into the inner cavity of the water tank and is arranged right above the blades.
In a preferred embodiment of the present invention, the signal output terminal of the temperature sensor is connected to the signal input terminal of the controller, and the signal output terminal of the controller is connected to the signal input terminal of the liquid pump.
As a preferred embodiment of the present invention, a plurality of identical heat conducting blocks are uniformly distributed on the inner wall of the first annular cavity.
As a preferred embodiment of the present invention, the top of the box body is detachably fixed with a box cover through a bolt.
In a preferred embodiment of the present invention, the length of the brush rod is equal to the outer diameter of the dust screen, and the short shaft and the dust screen are concentrically arranged.
As a preferred embodiment of the present invention, the water tank, the liquid pump and the box body are detachably fixed to the motor body by bolts.
In a preferred embodiment of the present invention, the dust screen and the rear cover are fixed by bolts.
In a preferred embodiment of the present invention, the support plate is an inverted L-shaped plate.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the cooling liquid is pumped by the liquid pump, firstly, the control box is cooled through the second annular cavity, and then, the cooling liquid enters the first annular cavity of the stator for secondary cooling, so that the efficient heat dissipation can be effectively performed on places with much heat generated by the motor, and meanwhile, the power of the liquid pump can be regulated according to the temperature fed back by the temperature sensor, so that the heat dissipation accuracy is ensured.
2. According to the invention, the control element is connected with the inner wall of the box body through the first damper and the second damper, so that vibration can be effectively relieved in the vibration generating process, the control element is effectively protected, and the service life is further prolonged.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of the overall structure of a low-noise energy-saving three-phase permanent magnet AC synchronous motor according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a motor body of a low-noise energy-saving three-phase permanent magnet AC synchronous motor according to the present invention;
FIG. 3 is a schematic diagram of the structure of the inner cavity of the control box of the low-noise energy-saving three-phase permanent magnet AC synchronous motor of the present invention;
fig. 4 is a schematic diagram of the structure of the water tank inner cavity of the low-noise energy-saving three-phase permanent magnet alternating current synchronous motor.
In the figure: 1. a motor body; 2. a rear cover; 3. a dust screen; 4. a control box; 5. a water inlet pipe; 6. a liquid pump; 7. a first conduit; 8. a water tank; 9. a support plate; 10. a second conduit; 11. a water outlet pipe; 12. a first annular cavity; 13. a temperature sensor; 14. a heat conducting block; 15. a case body; 16. a control element; 17. a second annular cavity; 18. a second damper; 19. a first damper; 20. a controller; 21. a rotating shaft; 22. a partition plate; 23. a blade; 24. a first drive pulley; 25. a second transmission wheel; 27. a brush bar; 28. a transmission belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations, the model of the electrical appliance provided in the present invention is only referred to, and different models of electrical appliances with the same function can be replaced according to the actual use situation.
Referring to fig. 1-4, the present invention provides a technical solution: a low-noise energy-saving three-phase permanent magnet alternating current synchronous motor comprises a motor body 1, wherein a rear cover 2 is detachably fixed at the tail end of the motor body 1, and a dust screen 3 is fixed on the outer wall of the rear cover 2;
the motor comprises a motor body 1, and is characterized in that a control box 4 is fixed at the top of the motor body 1, the control box 4 comprises a box body 15, the box body 15 is provided with a second annular cavity 17, a control element 16 is installed in the box body 15, two side walls of the control element 16 are connected with the inner wall of the box body 15 through a first damper 19, the bottom of the control element 16 is connected with the bottom of an inner cavity of the box body 15 through a second damper 18, a controller 20 is fixed at the top of the control element 16, the outer wall of the box body 15 is communicated with a water inlet pipe 5, the water inlet pipe 5 is communicated with the second annular cavity 17, the other side of the second annular cavity 17 is communicated with a liquid pump 6, the liquid pump 6 is fixed at the top of the motor body 1, a water tank 8 is fixed at the left side of the top of the motor body 1, the outer wall of the water tank 8 is communicated with a second conduit 10, and a stator at the inner wall of the motor body 1 is provided with a first annular cavity 12, the second guide pipe 10 penetrates through the outer wall of the motor body 1 and is communicated with a first annular cavity 12, the bottom of the first annular cavity 12 is communicated with a water outlet pipe 11, and a temperature sensor 13 is embedded in the inner wall of a stator of the motor body 1;
specifically, the cooling liquid can be introduced through the second annular cavity 17, so that the interior of the control box 4 can be cooled, meanwhile, the first damper 19 and the second damper 18 can absorb shock to the control element 16, so that the control element is prevented from being greatly affected by shock, meanwhile, water can enter the first annular cavity 12, so that the interior of the motor body 1 can be cooled, and therefore, the heat dissipation effect is improved;
a rotating shaft 21 is arranged on the inner wall of the water tank 8, a partition plate 22 is fixedly arranged in the middle of the inner cavity of the water tank 8, one end of the rotating shaft 21 is rotatably connected with the right side wall of the inner cavity of the water tank 8, the outer end of the rotating shaft 21 penetrates through the partition plate 22 and the water tank 8 and is fixedly connected with a first driving wheel 24, a support plate 9 is fixed on the left side wall of the water tank 8, a short shaft 26 is rotatably connected on the lower side of the inner wall of the support plate 9, a second driving wheel 25 is fixedly sleeved on the outer wall of the short shaft 26, a brush rod 27 is fixedly connected on the outer wall of the short shaft 26, the brush rod 27 is attached to the outer wall of the dustproof net 3, the first driving wheel 24 is connected with the second driving wheel 25 through a driving belt 28, a plurality of same blades 23 are uniformly distributed on the outer wall of the right end of the rotating shaft 21, the outer end of the liquid pump 6 is communicated with a first conduit 7, and the first conduit 7 is inserted into the inner cavity of the water tank 8 and is arranged right above the blade 23;
specifically, water is guided into the water tank 8 under the driving of the liquid pump 6, so that the water can impact on the surface of the blade 23, the rotating shaft 21 can be driven to rotate, the first driving wheel 24 is driven to rotate, the second driving wheel 25 is driven to rotate, the short shaft 26 can drive the brush rod 27 to rotate, the outer wall of the dust screen 3 can be cleaned, dust blocking can be avoided, and the heat dissipation effect of the heat dissipation holes is improved;
the signal output end of the temperature sensor 13 is connected with the signal input end of the controller 20, and the signal output end of the controller 20 is connected with the signal input end of the liquid pump 6.
In the invention, when in use, firstly, the liquid pump 6 works, so that pumped water firstly enters the second annular cavity 17 in the box body 15, so that the inner cavity of the control box 5 can be cooled, meanwhile, the first damper 19 and the second damper 18 can absorb shock of the control element 16, so that great influence on the control element caused by shock is avoided, then the water enters the water tank 8, so that the water can impact on the surface of the blade 23, so that the rotating shaft 21 can be driven to rotate, so that the first driving wheel 24 is driven to rotate, and further the second driving wheel 25 is driven to rotate, so that the short shaft 26 can drive the brush rod 27 to rotate, further the outer wall of the dustproof net 3 can be cleaned, so that dust blockage can be avoided, further the heat dissipation effect of the heat dissipation holes is improved, then the water enters the first annular cavity 12 of the stator in the motor body 1 and then is led out through the drain pipe 11, thereby take away the heat that motor body 1 produced to promote the radiating effect, temperature sensor 13 can feed back the inside temperature condition simultaneously, thereby can feed back controller 20, and controller 20 can be according to the temperature condition, adjusts liquid pump 6's power, thereby guarantees accurate heat dissipation.
In an alternative embodiment, a plurality of identical heat-conducting blocks 14 are uniformly distributed on the inner wall of the first annular cavity 12.
It should be noted that the heat conduction block 14 is arranged to increase the contact area with the cooling liquid, thereby further improving the heat conduction effect.
In an alternative embodiment, the top of the box body 15 is detachably fixed with a box cover through bolts.
It should be noted that, the maintenance to the 15 inner chambers of box body is conveniently carried out.
In an alternative embodiment, the length of the brush bar 27 is equal to the outer diameter of the dust screen 3, and the stub shaft 26 and the dust screen 3 are arranged concentrically.
It should be noted that the brush rod 27 is ensured to clean the dust screen 3 completely.
In an alternative embodiment, the water tank 8, the liquid pump 6 and the box body 15 are detachably fixed to the motor body 1 by bolts.
It should be noted that each element is made detachable for maintenance.
In an alternative embodiment, the dust screen 3 and the rear cover 2 are fixed by bolts.
It should be noted that the dust screen 3 is made detachable and then cleaned thoroughly.
In an alternative embodiment, the support plate 9 is an inverted L-shaped plate.
It should be noted that the support plate has a certain space inside, thereby facilitating the arrangement of the device structure.
In addition, the components of the low-noise energy-saving three-phase permanent magnet alternating current synchronous motor are all universal standard components or components known by a person skilled in the art, the structure and the principle of the low-noise energy-saving three-phase permanent magnet alternating current synchronous motor can be known by the person skilled in the art through a technical manual or through a conventional experimental method, at the idle position of the device, all the electric components refer to power elements, electric components, an adaptive monitoring computer and a power supply which are connected through wires, the specific connection means refers to the following working principle, the electric components are electrically connected in sequence, the detailed connection means refers to the known technology in the field, the following main description is provided for the working principle and the process, and the description of electric control is not provided.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides an energy-conserving three-phase permanent magnetism AC synchronous machine of low noise, includes motor body (1), its characterized in that: a rear cover (2) is detachably fixed at the tail end of the motor body (1), and a dust screen (3) is fixed on the outer wall of the rear cover (2);
the motor is characterized in that a control box (4) is fixed to the top of the motor body (1), the control box (4) comprises a box body (15), a second annular cavity (17) is formed in the box body (15), a control element (16) is installed in the box body (15), two side walls of the control element (16) are connected with the inner wall of the box body (15) through a first damper (19), the bottom of the control element (16) is connected with the bottom of an inner cavity of the box body (15) through a second damper (18), a controller (20) is fixed to the top of the control element (16), the outer wall of the box body (15) is communicated with a water inlet pipe (5), the water inlet pipe (5) is communicated with the second annular cavity (17), the other side of the second annular cavity (17) is communicated with a liquid pump (6), the liquid pump (6) is fixed to the top of the motor body (1), and a water tank (8) is fixed to the left side of the top of the motor body (1), the outer wall of the water tank (8) is communicated with a second guide pipe (10), a stator on the inner wall of the motor body (1) is provided with a first annular cavity (12), the second guide pipe (10) penetrates through the outer wall of the motor body (1) to be communicated with the first annular cavity (12), the bottom of the first annular cavity (12) is communicated with a water outlet pipe (11), and a temperature sensor (13) is embedded in the inner wall of the stator of the motor body (1);
the inner wall of the water tank (8) is provided with a rotating shaft (21), a partition plate (22) is fixedly installed in the middle of an inner cavity of the water tank (8), one end of the rotating shaft (21) is rotatably connected with the right side wall of the inner cavity of the water tank (8), the outer end of the rotating shaft (21) penetrates through the partition plate (22) and the water tank (8) and is fixedly connected with a first driving wheel (24), a support plate (9) is fixed on the left side wall of the water tank (8), a short shaft (26) is rotatably connected to the lower side of the inner wall of the support plate (9), a second driving wheel (25) is fixedly sleeved on the outer wall of the short shaft (26), a brush rod (27) is fixedly connected to the outer wall of the dustproof net (3) and the brush rod (27) is attached to the outer wall of the dustproof net (3), the first driving wheel (24) is connected with the second driving wheel (25) through a driving belt (28), and a plurality of same blades (23) are uniformly distributed on the outer wall of the right end of the rotating shaft (21), the outer end of the liquid pump (6) is communicated with a first conduit (7), and the first conduit (7) is inserted into the inner cavity of the water tank (8) and is arranged right above the blade (23).
2. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the signal output end of the temperature sensor (13) is connected with the signal input end of the controller (20), and the signal output end of the controller (20) is connected with the signal input end of the liquid pump (6).
3. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the inner wall of the first annular cavity (12) is uniformly distributed with a plurality of same heat-conducting blocks (14).
4. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the top of the box body (15) is detachably fixed with a box cover through a bolt.
5. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the length of the brush rod (27) is equal to the outer diameter of the dustproof net (3), and the short shaft (26) and the dustproof net (3) are arranged concentrically.
6. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the water tank (8), the liquid pump (6) and the box body (15) are detachably fixed with the motor body (1) through bolts.
7. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the dust screen (3) and the rear cover (2) are fixed through bolts.
8. The low-noise energy-saving three-phase permanent magnet alternating current synchronous motor according to claim 1, characterized in that: the support plate (9) is an inverted L-shaped plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111189195.5A CN113794314B (en) | 2021-10-12 | 2021-10-12 | Low-noise energy-saving three-phase permanent magnet alternating current synchronous motor |
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| CN202111189195.5A CN113794314B (en) | 2021-10-12 | 2021-10-12 | Low-noise energy-saving three-phase permanent magnet alternating current synchronous motor |
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| CN113794314A CN113794314A (en) | 2021-12-14 |
| CN113794314B true CN113794314B (en) | 2022-09-13 |
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| CN114465393B (en) * | 2021-12-24 | 2022-11-18 | 江苏航天动力机电有限公司 | Permanent magnet motor with split type adjustable external support |
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| CN210273693U (en) * | 2019-09-19 | 2020-04-07 | 雷德伺服技术(苏州)有限公司 | Permanent magnet synchronous motor |
| CN211908566U (en) * | 2020-05-24 | 2020-11-10 | 无锡欣涔电机有限公司 | Protective cover for three-phase permanent magnet synchronous motor |
| CN213990368U (en) * | 2020-12-31 | 2021-08-17 | 江苏祝尔慷电机节能技术有限公司 | Special efficient energy-saving permanent magnet synchronous motor for new energy automobile |
| CN213990430U (en) * | 2020-12-31 | 2021-08-17 | 江苏祝尔慷电机节能技术有限公司 | Liquid cooling type energy-saving permanent magnet synchronous motor |
| CN213990431U (en) * | 2020-12-31 | 2021-08-17 | 江苏祝尔慷电机节能技术有限公司 | High-efficiency energy-saving rare earth permanent magnet synchronous motor |
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