CN113783346B - Brushless direct current motor heat radiation structure - Google Patents
Brushless direct current motor heat radiation structure Download PDFInfo
- Publication number
- CN113783346B CN113783346B CN202110976543.7A CN202110976543A CN113783346B CN 113783346 B CN113783346 B CN 113783346B CN 202110976543 A CN202110976543 A CN 202110976543A CN 113783346 B CN113783346 B CN 113783346B
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- China
- Prior art keywords
- rotating shaft
- clamping
- motor
- filtering
- outer side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005855 radiation Effects 0.000 title claims description 7
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000017525 heat dissipation Effects 0.000 claims description 22
- 239000000428 dust Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- 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
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention provides a brushless direct current motor radiating structure which comprises a permanent magnet, wherein a first rotating shaft is arranged on the inner side of the permanent magnet, a clamping slot is formed in the bottom of the first rotating shaft, multi-stage winding electrons are arranged on the outer side of the first rotating shaft, a position sensor is arranged at the bottom of the multi-stage winding electrons, two bearings on two sides of the first rotating shaft are connected with limiting plates, a motor sleeve is arranged on the outer side of the permanent magnet, a ventilation part is arranged at the top of the motor sleeve, two first limiting rings are arranged on the outer side of the tail of the motor sleeve, the first limiting rings are detachably connected with a filtering part, and the inner side of the filtering part is connected with a radiating assembly in a matching manner so as to solve the technical problem that the existing brushless motor cannot be used for quickly carrying out dust cleaning and cooling on the inside.
Description
Technical Field
The invention mainly relates to the technical field of direct current motors, in particular to a brushless direct current motor heat dissipation structure.
Background
The brushless DC motor is composed of a motor main body and a driver, and is a typical electromechanical integrated product. Because the brushless DC motor operates in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under heavy load under variable frequency speed regulation, and oscillation and step-out can not be generated when the load is suddenly changed.
During the operation of the specific examples, the inventors have found the following drawbacks:
the existing brushless direct current motor can generate dust accumulation inside after long-time use, the temperature of the motor can be increased if long-time work is performed after dust accumulation, the existing brushless direct current motor cannot rapidly clean the inside and cool down, and the service life of the brushless direct current motor is shortened when the existing brushless direct current motor is used.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention provides a brushless direct current motor heat dissipation structure, which is used for solving the technical problem that the existing brushless motor in the background technology cannot quickly clean the inside and cool the inside.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the utility model provides a brushless direct current motor heat radiation structure, includes the permanent magnet, the permanent magnet inboard is equipped with first axis of rotation, first axis of rotation bottom is equipped with the screens slot, the first axis of rotation outside is equipped with multistage winding electron, multistage winding electron bottom is equipped with position sensor, limiting plate is connected to first axis of rotation both sides bearing, the permanent magnet outside is equipped with the motor cover, the motor cover top is equipped with ventilative portion, the motor cover afterbody outside is equipped with twice first spacing ring, first spacing ring can dismantle and connect the filter part, the inboard matching connection radiating component of filter part.
Further, the filter part is including the screens portion that the symmetry was established, screens portion inboard is opened there are two screens recesses, screens recess mating connection first spacing ring, the filter block is dismantled to screens portion bottom, it has a plurality of circular air inlets to open to filter block bottom, the filter block inboard is equipped with a plurality of interfaces, interface sliding connection filters the picture peg, filter block top is equipped with connecting portion.
Further, the connecting portion comprises a combining block, one side of the combining block is connected with the clamping portion, the middle of the convex disc detachably connected with the other side of the combining block is provided with a sliding groove, the sliding groove is connected with the heat dissipation assembly in a matching mode, and the convex disc is provided with a plurality of air holes.
Further, the radiating component comprises a second limiting ring, the second limiting ring is in sliding connection with the inside of the motor sleeve, a second rotating shaft is arranged in the middle of the second limiting ring, two rotating rings are connected to a bearing on the second rotating shaft, a supporting frame is fixedly connected to the outer side of the rotating ring, the supporting frame is fixedly connected with the inner wall of the first limiting ring, a radiator fan is arranged between the rotating rings, a clamping bolt is fixedly connected to the top of the rotating shaft, the clamping bolt is in matched connection with the clamping slot, a clamping ring is arranged at the bottom of the second rotating shaft, and the clamping ring is in matched connection with the sliding groove.
Further, the ventilation part comprises a ventilation circular plate arranged at the top of the motor sleeve, annular ventilation holes are formed in the side face of the ventilation circular plate, a circle of rotation track is arranged on the outer side of the ventilation circular plate, the rotation track is connected with a shielding cover in a matching mode, and a plurality of air holes are formed in the shielding cover.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention has reasonable design, utilizes the slidable filtering part to perform heat dissipation and ash removal at any time in the motor, and can keep the inside of the DC motor clean without forcibly disassembling the brushless DC motor;
the device is small in size and convenient to use, can be directly additionally arranged on the existing brushless direct current motor, can be used for cleaning ash and radiating according to working requirements, is not always operated, and the filter plugboard at the bottom is replaced at any time, so that the motor is safe to use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is an enlarged schematic view of the invention at A;
FIG. 4 is a partial schematic view of a sliding groove according to the present invention;
fig. 5 is a schematic view of a heat dissipating assembly according to the present invention.
Reference numerals
1. A permanent magnet; 2. a first rotation shaft; 3. multi-stage winding electronics; 4. a position sensor; 5. a limiting plate; 6. a motor housing; 7. a ventilation part; 701. a ventilation circular plate; 702. annular ventilation holes; 703. rotating the track; 704. a shielding cover; 8. a first stop collar; 9. a filtering part; 91. a clamping part; 92. a clamping groove; 93. a filter block; 94. an interface; 95. filtering plugboards; 96. a connection part; 961. a combining block; 962. a convex disc; 963. a sliding groove; 10. a heat dissipation assembly; 101. a second limiting ring; 102. a second rotation shaft; 103. a rotating ring; 104. a support frame; 105. a heat radiation fan; 106. a clamping bolt; 107. a clamping ring.
Detailed Description
In order that the invention may be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which, however, the invention may be embodied in many different forms and are not limited to the embodiments described herein, but are instead provided for the purpose of providing a more thorough and complete disclosure of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
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 invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," "provided," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
Referring to fig. 1-5, a brushless direct current motor heat radiation structure comprises a permanent magnet 1, wherein a first rotating shaft 2 is arranged on the inner side of the permanent magnet 1, a clamping slot is arranged at the bottom of the first rotating shaft 2, a multi-stage winding electron 3 is arranged on the outer side of the first rotating shaft 2, a position sensor 4 is arranged at the bottom of the multi-stage winding electron 3, two side bearings of the first rotating shaft 2 are connected with a limiting plate 5, a motor sleeve 6 is arranged on the outer side of the permanent magnet 1, a ventilation part 7 is arranged at the top of the motor sleeve 6, two first limiting rings 8 are arranged on the outer side of the tail part of the motor sleeve 6, a filtering part 9 is detachably connected with the first limiting rings 8, and a heat radiation assembly 10 is connected with the inner side of the filtering part 9 in a matching manner.
The filter part 9 includes the screens portion 91 that the symmetry was set up, screens portion 91 inboard is opened there are two screens recesses 92, screens recess 92 matees and connects first spacing ring 8, the filter block 93 is dismantled to screens portion 91 bottom, it has a plurality of circular air inlets to open the filter block 93 bottom, the filter block 93 inboard is equipped with a plurality of interfaces 94, interface 94 sliding connection filters picture peg 95, filter block 93 top is equipped with connecting portion 96, and filter part 9 can prevent that dust in the air from getting into inside the motor, and screens portion 91 can slide from top to bottom on first spacing ring 8 to drive filter block 93's upper and lower slip, when dispelling the heat the deashing, gas gets into from the circular air inlet of bottom, gets into inside the motor through the filtration of a plurality of filters picture peg, is blown off to multistage winding electron 3 by radiator unit 10.
The connecting portion 96 comprises a combining block 961, one side of the combining block 961 is connected with the clamping portion 91, a sliding groove 963 is formed in the middle of the detachable connection convex disc 962 on the other side of the combining block 961, the sliding groove 963 is connected with the heat dissipation assembly 10 in a matching mode, a plurality of air holes are formed in the convex disc 962, the connecting portion 96 is a part for connecting the heat dissipation assembly 10 with the filtering portion 9, and under the connection of the combining block 961, the middle concave disc can be driven to slide up and down when the clamping portion 91 slides up and down, so that the heat dissipation assembly 10 at the top slides up and down, and the purpose of opening heat dissipation ash removal at any time is achieved.
The heat dissipation assembly 10 comprises a second limiting ring 101, the second limiting ring 101 is in sliding connection with the inside of the motor sleeve 6, a second rotating shaft 102 is arranged in the middle of the second limiting ring 101, two rotating rings 103 are connected to bearings on the second rotating shaft 102, a supporting frame 104 is fixedly connected to the outer side of the rotating rings 103, the supporting frame 104 is fixedly connected with the inner wall of the first limiting ring 8, a heat dissipation fan 105 is arranged between the rotating rings 103, the top of the rotating shaft is fixedly connected with a clamping bolt 106, the clamping bolts 106 are in matched connection with clamping slots, a clamping ring 107 is arranged at the bottom of the second rotating shaft 102, the clamping rings 107 are in matched connection with the sliding grooves 963, the heat dissipation assembly 10 mainly performs ash removal and heat dissipation on a driving assembly at the top by virtue of the heat dissipation fan 105 at the middle, the clamping portion 91 is pulled out outwards without ash removal and heat dissipation, the clamping bolts 106 at the top are stopped and are pushed inwards after one end of the brushless direct current motor works, the clamping bolts 91 are meshed with the clamping bolts 106 at the top, and thus the top of the first rotating shaft 2 can be driven to rotate automatically, and the inside of the motor is cleaned.
The ventilation part 7 is including locating the ventilative plectane 701 at motor cover 6 top, ventilative plectane 701 side is opened there is annular bleeder vent 702, ventilative plectane 701 outside is equipped with round rotation track 703, rotation track 703 matchedly connects and shelters from lid 704, it also opens there is a plurality of gas pockets to shelter from lid 704, when not dispel the heat and remove the ash, shelter from lid 704 and cover annular bleeder vent 702, prevent outside dust entering, when need dispel the heat and remove the ash, slow rotation shelters from lid 704, makes the gas pocket and the annular bleeder vent 702 coincidence on the lid 704 shelters from to outwards discharge the inside air.
In summary, the design of the invention is reasonable, when the brushless DC motor works, the filtering part at the tail part and the heat dissipation component are separated from the first rotating shaft, when the brushless DC motor works for a long time, the brushless DC motor is required to dissipate heat and clean dust, the bottom part is only required to be pressed forward, the filtering part is inserted to drive the heat dissipation component to be inserted into the clamping slot at the bottom part of the first rotating shaft, the filtering part can be aligned by rotating more times when the filtering part is not pressed down, and after the clamping pin is inserted into the clamping slot, the brushless DC motor can perform heat dissipation and clean dust operation when in work.
The foregoing examples merely illustrate certain embodiments of the invention and are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the invention, all of which fall within the scope of protection of the invention; accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (2)
1. A brushless DC motor heat radiation structure is characterized in that: the motor comprises a permanent magnet (1), wherein a first rotating shaft (2) is arranged on the inner side of the permanent magnet (1), a clamping slot is formed in the bottom of the first rotating shaft (2), a multi-stage winding electron (3) is arranged on the outer side of the first rotating shaft (2), a position sensor (4) is arranged on the bottom of the multi-stage winding electron (3), two side bearings of the first rotating shaft (2) are connected with a limiting plate (5), a motor sleeve (6) is arranged on the outer side of the permanent magnet (1), a ventilation part (7) is arranged on the top of the motor sleeve (6), two first limiting rings (8) are arranged on the outer side of the tail of the motor sleeve (6), a filtering part (9) is detachably connected with the first limiting rings, and the inner side of the filtering part (9) is connected with a heat dissipation assembly (10) in a matching manner.
The filtering part (9) comprises two clamping grooves (92) which are symmetrically arranged on the inner side of the clamping part (91), the clamping grooves (92) are connected with the first limiting ring (8) in a matching mode, the bottom of the clamping part (91) is detachably connected with a filtering block (93), a plurality of round air inlets are formed in the bottom of the filtering block (93), a plurality of inserting ports (94) are formed on the inner side of the filtering block (93), the inserting ports (94) are connected with a filtering inserting plate (95) in a sliding mode, and a connecting part (96) is arranged at the top of the filtering block (93);
the connecting part (96) comprises a combining block (961), one side of the combining block (961) is connected with the clamping part (91), the other side of the combining block (961) is detachably connected with the middle part of the convex disc (962) and is provided with a sliding groove (963), the sliding groove (963) is connected with the heat radiating assembly (10) in a matching way, and the convex disc (962) is provided with a plurality of air holes;
the heat dissipation assembly (10) comprises a second limiting ring (101), the second limiting ring (101) is in sliding connection with the inside of the motor sleeve (6), a second rotating shaft (102) is arranged in the middle of the second limiting ring (101), two rotating rings (103) are connected to an upper bearing of the second rotating shaft (102), a supporting frame (104) is fixedly connected to the outer side of each rotating ring (103), the supporting frame (104) is fixedly connected with the inner wall of the first limiting ring (8), a heat dissipation fan (105) is arranged between the rotating rings (103), a clamping bolt (106) is fixedly connected to the top of each rotating shaft, the clamping bolts (106) are in matched connection with the clamping slots, clamping rings (107) are arranged at the bottom of the second rotating shaft (102), and the clamping rings (107) are in matched connection with the sliding grooves (963).
2. A brushless dc motor heat dissipation structure as defined in claim 1, wherein: the ventilation part (7) comprises a ventilation circular plate (701) arranged at the top of the motor sleeve (6), annular ventilation holes (702) are formed in the side face of the ventilation circular plate (701), a circle of rotation track (703) is arranged on the outer side of the ventilation circular plate (701), the rotation track (703) is connected with a shielding cover (704) in a matching mode, and a plurality of air holes are formed in the shielding cover (704).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110976543.7A CN113783346B (en) | 2021-08-24 | 2021-08-24 | Brushless direct current motor heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110976543.7A CN113783346B (en) | 2021-08-24 | 2021-08-24 | Brushless direct current motor heat radiation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113783346A CN113783346A (en) | 2021-12-10 |
| CN113783346B true CN113783346B (en) | 2024-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110976543.7A Active CN113783346B (en) | 2021-08-24 | 2021-08-24 | Brushless direct current motor heat radiation structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN113783346B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203674947U (en) * | 2013-11-25 | 2014-06-25 | 东莞市瑞科五金塑胶制品有限公司 | Minitype brushless direct current motor |
| CN207039323U (en) * | 2017-08-04 | 2018-02-23 | 佛山市威灵洗涤电机制造有限公司 | Rotor assembly and there is its motor |
| CN108599513A (en) * | 2018-06-21 | 2018-09-28 | 许昌市大力电机制造有限公司 | A kind of permanent magnetic brushless with long service life |
| CN208581110U (en) * | 2018-07-06 | 2019-03-05 | 芜湖卧龙家用电机有限公司 | A kind of brshless DC motor accelerating air velocity and radiating |
| CN209344952U (en) * | 2019-02-28 | 2019-09-03 | 河南琳德自动化科技有限公司 | A kind of permanent-magnetic brush-less DC torque motor persistently to radiate after shutdown |
| CN110336436A (en) * | 2019-08-07 | 2019-10-15 | 北京长远纵横科技开发有限公司 | A kind of perseverance function permanent-magnet brushless DC electric machine |
| CN210958048U (en) * | 2019-12-26 | 2020-07-07 | 江西迈得机电配件有限公司 | Brushless motor's radiator unit |
| CN111697741A (en) * | 2020-06-08 | 2020-09-22 | 高邮市申发电机制造有限公司 | Permanent magnet brushless DC motor with good dustproof effect |
| CN212137518U (en) * | 2020-06-23 | 2020-12-11 | 文登市金达电机有限公司 | Single-phase brushless motor |
| CN112510893A (en) * | 2020-11-30 | 2021-03-16 | 江苏苏美达五金工具有限公司 | Hybrid excitation brushless direct current motor |
| CN213027764U (en) * | 2020-08-16 | 2021-04-20 | 佛山市顺德区诚通冠电子科技有限公司 | Power generation heat dissipation type direct current brushless motor |
| CN113020030A (en) * | 2021-02-02 | 2021-06-25 | 姚哲 | Computer host computer exempts from to demolish ash removal device |
-
2021
- 2021-08-24 CN CN202110976543.7A patent/CN113783346B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203674947U (en) * | 2013-11-25 | 2014-06-25 | 东莞市瑞科五金塑胶制品有限公司 | Minitype brushless direct current motor |
| CN207039323U (en) * | 2017-08-04 | 2018-02-23 | 佛山市威灵洗涤电机制造有限公司 | Rotor assembly and there is its motor |
| CN108599513A (en) * | 2018-06-21 | 2018-09-28 | 许昌市大力电机制造有限公司 | A kind of permanent magnetic brushless with long service life |
| CN208581110U (en) * | 2018-07-06 | 2019-03-05 | 芜湖卧龙家用电机有限公司 | A kind of brshless DC motor accelerating air velocity and radiating |
| CN209344952U (en) * | 2019-02-28 | 2019-09-03 | 河南琳德自动化科技有限公司 | A kind of permanent-magnetic brush-less DC torque motor persistently to radiate after shutdown |
| CN110336436A (en) * | 2019-08-07 | 2019-10-15 | 北京长远纵横科技开发有限公司 | A kind of perseverance function permanent-magnet brushless DC electric machine |
| CN210958048U (en) * | 2019-12-26 | 2020-07-07 | 江西迈得机电配件有限公司 | Brushless motor's radiator unit |
| CN111697741A (en) * | 2020-06-08 | 2020-09-22 | 高邮市申发电机制造有限公司 | Permanent magnet brushless DC motor with good dustproof effect |
| CN212137518U (en) * | 2020-06-23 | 2020-12-11 | 文登市金达电机有限公司 | Single-phase brushless motor |
| CN213027764U (en) * | 2020-08-16 | 2021-04-20 | 佛山市顺德区诚通冠电子科技有限公司 | Power generation heat dissipation type direct current brushless motor |
| CN112510893A (en) * | 2020-11-30 | 2021-03-16 | 江苏苏美达五金工具有限公司 | Hybrid excitation brushless direct current motor |
| CN113020030A (en) * | 2021-02-02 | 2021-06-25 | 姚哲 | Computer host computer exempts from to demolish ash removal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113783346A (en) | 2021-12-10 |
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