CN108712016B - High-efficient radiating brushless motor - Google Patents
High-efficient radiating brushless motor Download PDFInfo
- Publication number
- CN108712016B CN108712016B CN201810522290.4A CN201810522290A CN108712016B CN 108712016 B CN108712016 B CN 108712016B CN 201810522290 A CN201810522290 A CN 201810522290A CN 108712016 B CN108712016 B CN 108712016B
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- heat dissipation
- casing
- shell
- brushless motor
- fan blade
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 70
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 19
- 238000009423 ventilation Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 17
- 241000883990 Flabellum Species 0.000 description 13
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- 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
- H02K5/04—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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention relates to a brushless motor with high-efficiency heat dissipation, which comprises a shell, a rotating shaft, a first fan blade, a temperature sensor and a controller, wherein the rotating shaft penetrates through the shell, the first fan blade is positioned in the shell and fixedly connected with the rotating shaft, a first heat dissipation hole is formed in the shell corresponding to the first fan blade, a cover shell capable of plugging the first heat dissipation hole is connected outside the shell in a sliding mode, a first elastic piece is connected between the cover shell and the shell, an electromagnetic absorber used for driving the cover shell to slide is arranged on one side of the cover shell, the electromagnetic absorber is fixedly connected with the shell, the temperature sensor is positioned in the shell, and the controller is electrically connected with the temperature sensor and the electromagnetic absorber. After adopting such scheme, brushless motor can distribute away self inside heat automatically and high-efficiently, simultaneously, can also avoid external impurity to enter into the motor, influences the normal operating of motor.
Description
Technical Field
The invention relates to the field of motors, in particular to a brushless motor with efficient heat dissipation.
Background
Compared with a brush motor, the brushless motor has the advantages of low noise, no maintenance, low power consumption, long service life and the like, and is widely used.
Brushless motor can face the problem that generates heat usually at the in-process that uses, and especially controller and stator among the brushless motor can produce a large amount of heats, if the heat can't in time distribute away, can lead to the inside temperature of brushless motor to rise, influence brushless motor's normal operating.
At present, the most common method for dissipating heat of a brushless motor is air cooling. For example, by adding fan blades outside the casing to accelerate the air flow on the surface of the casing, the heat on the casing is transferred to the air. However, this heat dissipation method has a disadvantage of low efficiency, because the heat inside the casing needs to be conducted to the casing first and then to the air, and the heat dissipation effect is not ideal due to low conduction efficiency. The other mode also adopts fan blades, and is different from the former mode in that the fan blades are positioned in the machine shell, and simultaneously, through holes are formed in the machine shell, so that the fan blades generate air flow, and heat is radiated out from the through holes along with wind. Compared with the former heat dissipation mode, the heat dissipation mode is more direct to heat dissipation, the effect is better, and the defect is that impurities outside the shell easily enter the shell through the through holes, so that the normal operation of the brushless motor is influenced.
Disclosure of Invention
The invention aims to provide a brushless motor with high-efficiency heat dissipation, which can automatically and efficiently dissipate the heat inside the brushless motor and simultaneously prevent external impurities from entering the motor to influence the normal operation of the motor.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a high-efficient radiating brushless motor, includes casing, pivot, first flabellum, temperature-sensing ware and controller, the casing is run through in the pivot, first flabellum is located the casing, just first flabellum and pivot fixed connection, be equipped with first louvre with the corresponding department of first flabellum on the casing, the outer sliding connection of casing has the housing of the first louvre of shutoff, be connected with first elastic component between housing and the casing, one side of housing is equipped with and is used for driving the gliding electromagnetism of housing and inhales, the electromagnetism is inhaled and casing fixed connection, temperature-sensing ware is located the casing, the controller inhales the electricity with temperature-sensing ware and electromagnetism and is connected. By adopting the structure, when the motor is in a working state, the temperature sensor feeds back the temperature in the shell to the controller, when the temperature is too high, the controller controls the electromagnetic attraction to be electrified and adsorbs the shell, the first heat dissipation hole originally blocked by the shell is opened to be communicated with the outside, the wind generated by the rotation of the first fan blade in the shell passes through the first heat dissipation hole and dissipates the heat in the shell, and meanwhile, due to the action of wind force, impurities cannot enter the first heat dissipation hole under the normal condition; when the temperature in the shell returns to normal, the electromagnetism absorbs and loses electricity, the cover returns to the original position under the traction of the first elastic piece, and the first heat dissipation hole is in a blocked state, so that the time for the first heat dissipation hole to be communicated with the outside is shortened, and the probability that impurities enter the motor through the first heat dissipation hole is reduced. When the motor is not in a working state, the electromagnetism absorbs and loses electricity, the first heat dissipation hole is always plugged, and the motor is in a sealing state. In general, the rapid heat dissipation of the brushless motor is realized, and the influence of external impurities entering the brushless motor on the normal operation of the brushless motor can be well avoided.
Preferably: the position that lies in the casing in the pivot is equipped with the second flabellum, the both ends of casing all are equipped with the second louvre, and are connected with the cooling tube between the second louvre at both ends, the cooling tube is located the casing, the produced wind of rotation of second flabellum passes the cooling tube to take away the inside heat of casing. Adopt this structure, on heat conduction to the cooling tube in the motor, the wind of the rotation production of second flabellum took away the heat on the cooling tube through the cooling tube to realize thermal quick giving off, can also guarantee the closure of motor simultaneously, avoid impurity to get into the inside normal operation that influences the motor of motor.
Preferably: the brushless motor further comprises a stator assembly, and the radiating pipe penetrates through the stator assembly. By adopting the structure, the radiating pipe is closer to the heat source, so that the radiating efficiency is higher.
Preferably: the quantity of cooling tube is 6 at least, the diameter of first louvre is 4mm at least.
Preferably: the radiating pipe is fixedly connected with the machine shell through a sealant. By adopting the structure, gaps can be effectively avoided between the radiating pipe and the shell.
Preferably: the second fan blade is arranged at the rear end of the rotating shaft.
Preferably: the casing is provided with a groove, at least one of the second heat dissipation holes penetrates through the groove, the controller is located in the groove, a protective cover used for sealing the groove is further arranged at the groove, a third heat dissipation hole is formed in the protective cover, and the heat dissipation pipe penetrates through the second heat dissipation hole and is fixedly connected with the third heat dissipation hole. By adopting the structure, the sealing performance of the placing environment of the controller can be ensured, and meanwhile, the heat generated by the controller can be quickly dissipated.
Preferably: be equipped with one-way ventilation unit in the first louvre, one-way ventilation unit includes shell, second elastic component and sealing member, the one end of shell is equipped with the ventilation hole, the inside at the shell is fixed to the second elastic component, the sealing member is located between second elastic component and the ventilation hole, just the ventilation hole is plugged up under the effect of second elastic component to the sealing member. By adopting the structure, when the motor is used, the wind generated by the first fan blade acts on the sealing element, the sealing element leaves the vent hole, the vent hole is opened, and the wind comes out from the vent hole, so that heat dissipation is performed; when the motor is not used, the sealing element plugs up the ventilation hole under the action of the second elastic element, so that the sealing property of the motor is effectively improved, and the influence on the normal operation of the motor caused by the external impurities entering the motor is avoided.
Preferably: the casing is provided with a guide post which penetrates through the housing, and the electromagnetic attraction is fixedly connected with the guide post. By adopting the structure, the whole structure of the brushless motor is more compact and stable.
Preferably: and a baffle is arranged at the corresponding position of the housing and the first heat dissipation hole. By adopting the structure, when the first heat dissipation hole is communicated with the outside, the baffle can shield impurities from entering the motor through the first heat dissipation hole to a certain extent.
After adopting such scheme, brushless motor can distribute away self inside heat automatically and high-efficiently, simultaneously, can also avoid external impurity to enter into the motor, influences the normal operating of motor.
Drawings
The invention is further described with reference to the following figures and detailed description:
fig. 1 is a schematic structural diagram of a brushless motor with high heat dissipation efficiency according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a brushless motor with high heat dissipation efficiency according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a brushless motor with high heat dissipation efficiency according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an internal structure of the first embodiment of the present invention;
FIG. 5 is an exploded view of a first embodiment of the present invention;
FIG. 6 is a schematic structural view of a one-way ventilating device according to a second embodiment of the present invention;
FIG. 7 is an exploded view of a one-way vent in accordance with a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a brushless motor with three efficient heat dissipation functions according to an embodiment of the present invention.
Wherein, 1, rotor subassembly, 2, stator module, 3, casing, 4, pivot, 5, first flabellum, 6, temperature-sensing ware, 7, controller, 8, housing, 9, first elastic component, 10, electromagnetism is inhaled, 11, the shell, 12, second elastic component, 13, sealing member, 14, ventilation hole, 15, the bearing, 31, first louvre, 32, the second louvre, 33, the cooling tube, 34, the guide post, 35, the visor, 36, third louvre, 41, the second flabellum, 81, the baffle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and 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.
The first embodiment is as follows:
the brushless motor with high heat dissipation efficiency as shown in fig. 1-5 comprises a rotor assembly 1, a stator assembly 2, a casing 3, a rotating shaft 4, a first fan blade 5, a temperature sensor 6 and a controller 7, wherein the stator assembly 2 is fixed in the casing 3, the rotating shaft 4 is fixedly connected with the rotor assembly 1, the rotor assembly 1 is positioned at the inner ring of the stator assembly 2, a bearing 15 is arranged on the inner wall of the casing 3, the rotating shaft 4 penetrates through the casing 3 and is rotatably connected with the casing 3 through the bearing 15, the first fan blade 5 is positioned in the casing 3, the first fan blade 5 is fixedly connected with the rotating shaft 4, a first heat dissipation hole 31 is arranged on the casing 3 corresponding to the first fan blade 5, the diameter of the first heat dissipation hole 31 is at least 4mm, a casing 8 capable of plugging the first heat dissipation hole 31 is slidably connected with the outside of the casing 3, a first elastic member 9 is connected between the casing 8 and the casing 3, an, the electromagnetic absorber 10 is fixedly connected with the machine shell 3, the temperature sensor 6 is positioned in the machine shell 3, and the controller 7 is electrically connected with the temperature sensor 6 and the electromagnetic absorber 10. By adopting the structure, when the motor is in a working state, the temperature sensor 6 feeds back the temperature in the shell 3 to the controller 7, when the temperature is too high, the controller 7 controls the electromagnetic absorber 10 to be electrified and adsorbs the cover 8, the first heat dissipation hole 31 originally blocked by the cover 8 is opened to be communicated with the outside, the wind generated by the rotation of the first fan blade 5 in the shell 3 passes through the first heat dissipation hole 31 and dissipates the heat in the shell 3, and meanwhile, due to the action of wind force, impurities can not enter the first heat dissipation hole 31 under a general condition; when the temperature in the case 3 returns to normal, the electromagnetic absorber 10 loses power, the housing 3 returns to the original position under the traction of the first elastic piece 9, and the first heat dissipation hole 31 is in a blocked state, so that the time for communicating the first heat dissipation hole 31 with the outside is reduced, and the probability that impurities enter the motor through the first heat dissipation hole 31 is reduced. When the motor is not in a working state, the electromagnetic absorber 10 loses power, the first heat dissipation hole 31 is always sealed, and the motor is in a sealing state. In general, the rapid heat dissipation of the brushless motor is realized, and the influence of external impurities entering the brushless motor on the normal operation of the brushless motor can be well avoided.
In order to let brushless motor have better radiating effect, the position that lies in the casing 3 outside on the pivot 4 is equipped with second flabellum 41, second flabellum 41 is installed in the rear end of pivot 4, the both ends of casing 3 all are equipped with second louvre 32, and be connected with cooling tube 33 between the second louvre 32 at both ends, the quantity of cooling tube 33 is 6 at least, cooling tube 33 is located casing 3, cooling tube 33 is through sealed gluey and casing 3 fixed connection, the produced wind of rotation of second flabellum 41 passes cooling tube 33, thereby take away the inside heat of casing 3. Adopt this structure, on heat conduction to cooling tube 33 in the motor, the wind that the rotation of second flabellum 41 produced through cooling tube 33, takes away the heat on the cooling tube 33 to realize thermal quick giving off, can also guarantee the closure of motor simultaneously, avoid impurity to get into the inside normal operating that influences the motor of motor. Meanwhile, the heat dissipation pipe 33 passes through the stator assembly 2, so that the heat dissipation pipe 33 is closer to the heat source, thereby achieving higher heat dissipation efficiency.
In addition, a groove is formed in the casing 3, at least one of the second heat dissipation holes 32 penetrates through the groove, the controller 7 is located in the groove, a protective cover 35 for sealing the groove is further arranged at the groove, a third heat dissipation hole 36 is formed in the protective cover 35, and the heat dissipation pipe 33 penetrates through the second heat dissipation hole 32 and is fixedly connected with the third heat dissipation hole 36. By adopting the structure, the sealing performance of the placing environment of the controller 7 can be ensured, and meanwhile, the heat generated by the controller 7 can be quickly dissipated.
In addition, a guide post 34 is arranged on the machine shell 3, the guide post 34 penetrates through the housing 8, and the electromagnetic absorber 10 is fixedly connected with the guide post 34. By adopting the structure, the whole structure of the brushless motor is more compact and stable.
Example two:
the difference between this embodiment and the first embodiment is that, as shown in fig. 6 to 7, a one-way ventilation device is arranged in the first heat dissipation hole 31, the one-way ventilation device includes a casing 11, a second elastic member 12 and a sealing member 13, a ventilation hole 14 is arranged at one end of the casing 11, the second elastic member 12 is fixed inside the casing 11, the sealing member 13 is located between the second elastic member 12 and the ventilation hole 14, and the ventilation hole 14 is blocked by the sealing member 13 under the action of the second elastic member 12. With the structure, when the motor is used, wind generated by the first fan blade 5 acts on the sealing element 13, the sealing element 13 leaves the vent hole 14, the vent hole 14 is opened, and the wind comes out from the vent hole 14, so that heat dissipation is performed; when the motor is not used, the sealing element 13 blocks the vent hole 14 under the action of the second elastic element 12, so that the sealing property of the motor is effectively improved, and the influence of external impurities in the motor on the normal operation of the motor is avoided.
Example three:
the difference between the present embodiment and the first embodiment is that, as shown in fig. 8, a baffle 81 is disposed on the housing 8 corresponding to the first heat dissipation hole 31. With the structure, when the first heat dissipation hole 31 is conducted with the outside, the baffle 81 can shield impurities from entering the motor through the first heat dissipation hole 31 to a certain extent.
To sum up, after adopting such scheme, brushless motor can distribute away self inside heat automatically and high-efficiently, simultaneously, can also avoid external impurity to get into in the motor, influence the normal operating of motor.
In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-efficient radiating brushless motor which characterized in that: the fan comprises a casing, a rotating shaft, a first fan blade, a temperature sensor and a controller, wherein the rotating shaft penetrates through the casing, the first fan blade is positioned in the casing, the first fan blade is fixedly connected with the rotating shaft, a first heat dissipation hole is formed in the corresponding position of the first fan blade on the casing, a cover shell capable of plugging the first heat dissipation hole is connected outside the casing in a sliding mode, a first elastic piece is connected between the cover shell and the casing, an electromagnetic absorber used for driving the cover shell to slide is arranged on one side of the cover shell, the electromagnetic absorber is fixedly connected with the casing, the temperature sensor is positioned in the casing, the controller is electrically connected with the temperature sensor and the electromagnetic absorber, a second fan blade is arranged at the position, outside the casing, on the rotating shaft, the two ends of the casing are respectively provided with a second heat dissipation hole, a heat dissipation tube is connected between the second heat dissipation holes at the two ends, the heat dissipation tube is positioned in, thereby take away the inside heat of casing, be equipped with the recess on the casing, just at least one in the second louvre passes the recess, the controller is located the recess, just groove department still is equipped with the visor that is used for sealing the recess, be equipped with the third louvre on the visor, the cooling tube passes second louvre and third louvre fixed connection.
2. The brushless electric machine with efficient heat dissipation according to claim 1, wherein: the brushless motor further comprises a stator assembly, and the radiating pipe penetrates through the stator assembly.
3. The brushless electric machine with efficient heat dissipation according to claim 1, wherein: the quantity of cooling tube is 6 at least, the diameter of first louvre is 4mm at least.
4. The brushless electric machine with efficient heat dissipation according to claim 1, wherein: the radiating pipe is fixedly connected with the machine shell through a sealant.
5. The brushless electric machine with efficient heat dissipation according to claim 1, wherein: the second fan blade is arranged at the rear end of the rotating shaft.
6. The brushless motor with high heat dissipation efficiency according to any one of claims 1 to 5, wherein: be equipped with one-way ventilation unit in the first louvre, one-way ventilation unit includes shell, second elastic component and sealing member, the one end of shell is equipped with the ventilation hole, the inside at the shell is fixed to the second elastic component, the sealing member is located between second elastic component and the ventilation hole, just the ventilation hole is plugged up under the effect of second elastic component to the sealing member.
7. The brushless motor with high heat dissipation efficiency according to any one of claims 1 to 5, wherein: the casing is provided with a guide post which penetrates through the housing, and the electromagnetic attraction is fixedly connected with the guide post.
8. The brushless motor with high heat dissipation efficiency according to any one of claims 1 to 5, wherein: and a baffle is arranged at the corresponding position of the housing and the first heat dissipation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522290.4A CN108712016B (en) | 2018-05-28 | 2018-05-28 | High-efficient radiating brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522290.4A CN108712016B (en) | 2018-05-28 | 2018-05-28 | High-efficient radiating brushless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108712016A CN108712016A (en) | 2018-10-26 |
| CN108712016B true CN108712016B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810522290.4A Active CN108712016B (en) | 2018-05-28 | 2018-05-28 | High-efficient radiating brushless motor |
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| Country | Link |
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| CN (1) | CN108712016B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016082708A (en) * | 2014-10-16 | 2016-05-16 | 株式会社豊田自動織機 | Rotary electric machine |
| CN206135639U (en) * | 2016-10-16 | 2017-04-26 | 揭阳市恒翔电器有限公司 | Rapid cooling's motor |
| CN106981950A (en) * | 2017-05-17 | 2017-07-25 | 襄阳华博士新能源科技有限公司 | A kind of novel air-cooled motor based on heat pipe |
| CN107565738B (en) * | 2017-09-15 | 2020-05-15 | 安徽达来电机有限公司 | Motor with built-in elastic heat dissipation device |
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2018
- 2018-05-28 CN CN201810522290.4A patent/CN108712016B/en active Active
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| CN108712016A (en) | 2018-10-26 |
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Denomination of invention: A Brushless Motor with Efficient Heat Dissipation Granted publication date: 20200424 Pledgee: Bank of China Limited Wuyi County Branch Pledgor: ZHEJIANG YOUSHENGKANG TECHNOLOGY Co.,Ltd. Registration number: Y2024980008777 |