CN111404311A - Motor and ceiling fan - Google Patents
Motor and ceiling fan Download PDFInfo
- Publication number
- CN111404311A CN111404311A CN202010252271.1A CN202010252271A CN111404311A CN 111404311 A CN111404311 A CN 111404311A CN 202010252271 A CN202010252271 A CN 202010252271A CN 111404311 A CN111404311 A CN 111404311A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- cover plate
- motor
- ring
- rotating
- 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.)
- Pending
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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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/088—Ceiling fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
-
- 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
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- 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
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a motor and a ceiling fan, and belongs to the technical field of motors. It has solved the current motor and has generated heat many and the poor problem of radiating effect. The invention relates to a motor which comprises a rotating shaft, a rotating assembly, a magnetic steel sheet and a driving assembly. In the invention, when the driving component is electrified, only the rotating component moves, but not the driving component, and because the weight of the driving component is greater than that of the rotating component, the motor can drive the rotating component to rotate only by less electric energy in the running process, thereby achieving the effect of saving electricity, and secondly, realizing the functions of less heat generation and long-time running of the motor; secondly, set up a plurality of radiating grooves on the lateral surface of side shell, wherein, a plurality of radiating grooves all are parallel to each other, through the setting of a plurality of radiating grooves, have increased the area of contact of side shell with the external world, effectively improve the radiating efficiency of side shell.
Description
Technical Field
The invention belongs to the technical field of motors, and relates to a motor and a ceiling fan.
Background
The motor (commonly called as motor) is an electromagnetic device for realizing electric energy conversion or transmission according to the law of electromagnetic induction, so the motor is widely applied, especially the motor is applied to a fan, but the motor applied to the fan on the market at present has a complex structure and a large volume, especially the weight of a rotor inside the motor is heavy, so that when the motor runs, a large amount of electric energy is needed to drive the rotor to rotate, and the heat dissipation effect is poor, so that the motor cannot be used for a long time.
Disclosure of Invention
The invention aims to provide a motor and a ceiling fan with less heating and good heat dissipation effect aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: an electric machine comprising:
a rotating shaft;
the rotating assembly is arranged on the rotating shaft, rotates by taking the rotating shaft as a center, and is provided with a plurality of magnetic steel sheets in an annular array by taking the rotating shaft as a center;
the driving assembly is clamped on the rotating shaft and positioned in the rotating assembly, and the driving assembly drives the rotating assembly to move relative to the rotating shaft; a lower grinding ring is attached to the other end face of the static disc, and extension legs corresponding to the support plates are arranged on the upper grinding ring and the lower grinding ring; the static disc is detachably connected with an upper pressure ring used for pressing an upper grinding ring and a lower pressure ring used for pressing a lower grinding ring.
In the above motor, the rotating assembly includes an upper cover plate and a lower cover plate mounted on the rotating shaft, a side casing is detachably connected between the upper cover plate and the lower cover plate, and the magnetic steel sheet is mounted on an inner wall of the side casing.
In the above motor, a plurality of heat dissipation grooves are formed in the outer side surface of the side shell, a plurality of arc grooves are formed in the lower cover plate along the center of the lower cover plate in an annular array, and the arc grooves are integrally arc-shaped.
In the motor, the upper cover plate is connected with the rotating shaft through the upper bearing, the positioning sleeve with the Z-shaped section is clamped between the upper cover plate and the rotating shaft, and the lower cover plate is connected with the rotating shaft through the lower bearing.
In the motor, the upper bearing comprises an upper outer ring for connecting the positioning sleeve and an upper inner ring arranged on the rotating shaft, and the upper outer ring rotates relative to the upper inner ring; the lower bearing comprises a lower outer ring used for connecting the lower cover plate and a lower inner ring arranged on the rotating shaft, and the lower outer ring rotates relative to the lower inner ring.
In the above motor, the driving assembly includes a stationary disc clamped on the rotating shaft, a plurality of support plates are arranged on the side surface of the stationary disc in an annular array along the central axis of the stationary disc, coils are wound on the support plates, and a gap is formed between each support plate and the corresponding magnetic steel sheet.
In the motor, the rotating shaft is sleeved with the dustproof sleeve, and the upper cover plate is provided with the annular groove for embedding the dustproof sleeve.
A ceiling fan, comprising: in the motor, the rotating assembly of the motor is provided with the plurality of fan blades in an annular array along the central axis thereof.
Compared with the prior art, the invention has the following beneficial effects:
1. in the invention, when the driving component is electrified, only the rotating component moves, but not the driving component, and the weight of the driving component is greater than that of the rotating component, so that the motor can drive the rotating component to rotate only by less electric energy in the running process, thereby achieving the effect of saving electricity, and secondly, realizing the functions of less heat generation and long-time running of the motor.
2. A plurality of radiating grooves are formed in the outer side face of the side shell, the radiating grooves are parallel to each other, the contact area between the side shell and the outside is increased through the arrangement of the radiating grooves, and the radiating efficiency of the side shell is effectively improved.
3. The lower cover plate is in an annular array along the center thereof and is provided with a plurality of arc grooves, the arc grooves are integrally arc-shaped, and the heat dissipation efficiency of the lower cover plate is effectively improved through the arrangement of the arc grooves.
4. When winding the coil on the extension board, through the effect of last grinding ring and lower grinding ring, direct contact between the upper and lower terminal surface of avoiding the extension board and the coil to avoid the condition of coil fracture or extension board wearing and tearing.
5. Go up the grinding ring card on the up end of static dish through last clamping ring for go up the grinding ring and can install steadily on static dish, will grind the lower terminal surface of ring card at static dish down through lower clamping ring, make down the grinding ring can install steadily on static dish, avoid this motor at the moving in-process, go up the grinding ring or grind the condition that the ring took place the dislocation removal down.
Drawings
Fig. 1 is a side view of a motor.
Fig. 2 is a cross-sectional view at a-a of fig. 1.
Fig. 3 is a bottom view of fig. 1.
Fig. 4 is an enlarged schematic view of a structure at a in fig. 2.
Fig. 5 is an enlarged schematic view of B in fig. 2.
Fig. 6 is an enlarged schematic view of the structure at C in fig. 2.
Fig. 7 is a schematic view of the structure of the stationary disc.
Fig. 8 is a schematic structural view of the upper grinding ring.
Fig. 9 is a schematic view of the upper pressure ring.
FIG. 10 is a schematic view of the ceiling fan of the second embodiment.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 9, a motor of the present invention includes a rotating shaft 100, a rotating assembly 300, a magnetic steel sheet 310, and a driving assembly 200.
The rotating assembly 300 is mounted on the rotating shaft 100, the rotating assembly 300 rotates around the rotating shaft 100, the inner wall of the rotating assembly 300 is provided with a plurality of magnetic steel sheets 310 in an annular array around the rotating shaft 100, the driving assembly 200 is clamped on the rotating shaft 100, the driving assembly 200 is located in the rotating assembly 300, the driving assembly 200 drives the rotating assembly 300 to move relative to the rotating shaft 100, when the driving assembly 200 is powered on, a magnetic field is generated around the driving assembly 200, because the magnetic steel sheets 310 are mounted on the inner wall of the rotating assembly 300, and the rotating assembly 300 is movably mounted on the rotating shaft 100, the rotating assembly 300 rotates around the rotating shaft 100, thus, in the working process of the motor, only the rotating assembly 300 moves, the driving assembly 200 does not move, because the weight of the driving assembly 200 is greater than that of the rotating assembly 300, the motor can be driven to rotate by less electric energy in the working process, therefore, the power-saving effect is achieved, and secondly, the functions that the motor generates less heat and can run for a long time are achieved.
As shown in fig. 2 to 4, the rotating assembly 300 includes an upper cover plate 320 and a lower cover plate 330 mounted on the rotating shaft 100, a side casing 340 is detachably connected between the upper cover plate 320 and the lower cover plate 330, and a magnetic steel sheet 310 is mounted on an inner wall of the side casing 340, wherein the upper cover plate 320 and the lower cover plate 330 are both made of an aluminum alloy material, and the price of the aluminum alloy material is low, thereby reducing the cost of manufacturing the motor; the side casing 340 is made of a metal iron material, so that the magnetic steel can be magnetically connected with the side casing 340.
A plurality of heat dissipation grooves 341 are formed in the outer side surface of the side casing 340, wherein the heat dissipation grooves 341 are parallel to each other, and the contact area between the side casing 340 and the outside is increased by the arrangement of the heat dissipation grooves 341, so that the heat dissipation efficiency of the side casing 340 is effectively improved.
The lower cover plate 330 is provided with a plurality of arc grooves 331 along the center thereof in an annular array, the arc grooves 331 are integrally arc-shaped, and the heat dissipation efficiency of the lower cover plate 330 is effectively improved through the arrangement of the arc grooves 331.
The upper cover plate 320 is connected with the rotating shaft 100 through the upper bearing 350, the positioning sleeve 370 with the zigzag cross section is clamped between the upper cover plate 320 and the rotating shaft 100, the lower cover plate 330 is connected with the rotating shaft 100 through the lower bearing 360, during installation, people need to connect the side casing 340 with the lower cover plate 330 in a threaded manner, then movably install the lower cover plate 330 on the rotating shaft 100 through the lower bearing 360, then sleeve the upper bearing 350 on the rotating shaft 100, then clamp the positioning sleeve 370 on the upper bearing 350, and then install the upper cover plate 320 on the positioning sleeve 370 until the upper cover plate 320 contacts with the side casing 340, and then connect the upper cover plate 320 with the side casing 340 in a threaded manner, so that the rotation of the rotating assembly 300 relative to the rotating shaft 100 can be realized.
The upper bearing 350 comprises an upper outer ring 352 used for connecting a positioning sleeve 370 and an upper inner ring 351 mounted on the rotating shaft 100, the upper outer ring 352 rotates relative to the upper inner ring 351, the lower bearing 360 comprises a lower outer ring 362 used for connecting a lower cover plate 330 and a lower inner ring 361 mounted on the rotating shaft 100, the lower outer ring 362 rotates relative to the lower inner ring 361, the diameter of the middle part of the rotating shaft 100 is larger than the diameter of the two ends of the rotating shaft 100, during mounting, the upper inner ring 351 needs to be sleeved on the upper end of the rotating shaft 100, the upper inner ring 351 is enabled to abut against the connecting part of the upper end of the rotating shaft 100 and the middle part of the rotating shaft 100, so that the upper inner ring 351 cannot slide off the rotating shaft 100, and then the positioning sleeve 370 is sleeved on the upper outer ring 352, so that the upper cover plate 320 can be smoothly mounted on; when the lower cover plate 330 is mounted on the rotating shaft 100, people need to sleeve the lower inner ring 361 of the lower bearing 360 on the lower end of the rotating shaft 100, sleeve the lower cover plate 330 on the lower outer ring 362, and then connect the lower cover plate 330 with the side shell 340 through threads, so as to movably mount the rotating assembly 300 on the rotating shaft 100.
As shown in fig. 2 to 9, the driving assembly 200 includes a stationary disc 210 clamped on the rotating shaft 100, a plurality of support plates 220 are disposed on a side surface of the stationary disc 210 in an annular array along a central axis thereof, a coil 221 is wound on the support plates 220, a gap 230 is provided between the support plates 220 and a magnetic steel sheet 310, when the coil 221 is energized, the stationary disc 210 generates a magnetic field, and since the gap 230 is provided between the magnetic steel sheet 310 and the support plates 220, and the magnetic steel sheet 310 itself has a certain magnetic force, the rotating assembly 300 can be driven to rotate around the rotating shaft 100.
An upper grinding ring 240 is attached to one end face of the static disc 210, a lower grinding ring 250 is attached to the other end face of the static disc 210, extension legs 241 corresponding to the support plates 220 are respectively arranged on the upper grinding ring 240 and the lower grinding ring 250, an upper press ring 260 for pressing the upper grinding ring 240 and a lower press ring 270 for pressing the lower grinding ring 250 are detachably connected to the static disc 210, when the magnetic grinding machine is installed, people need to attach the upper grinding ring 240 to the upper end face of the static disc 210 and attach the extension legs 241 of the upper grinding ring 240 to the corresponding support plates 220, then, the upper press ring 260 is in threaded connection with the upper end face of the static disc 210, the upper grinding ring 240 is clamped on the upper end face of the static disc 210 by the upper press ring 260, so that the upper grinding ring 240 can be stably installed on the static disc 210, the operation is repeated, the lower grinding ring 250 can be clamped on the lower end face of the static disc 210 by the lower press ring 270, when the coil 221 is wound on the support plates 220, the upper and lower end surfaces of the stay plate 220 are prevented from directly contacting the coil 221 by the action of the upper and lower grinding rings 240 and 250, so that the coil 221 is prevented from being broken or the stay plate 220 is prevented from being worn.
The cover is equipped with dirt proof boot 380 on the pivot 100, offers the annular 324 that is used for inlaying the dirt proof boot 380 on the upper cover plate 320, and when the rotatory relative pivot 100 pivoted in-process of rotating assembly 300, because of dirt proof boot 380 and annular 324 contactless for dirt proof boot 380 is static relative pivot 100 all the time, so, just can effectively block outside dust and enter into inside the motor through the clearance 230 between upper cover plate 320 and the pivot 100, thereby prolongs the life of this motor.
Example two
As shown in fig. 10, the difference between the present embodiment and the first embodiment is that the present embodiment is added with a fan blade 323.
The rotating assembly 300 is provided with a plurality of fan blades 323 in an annular array along a central axis thereof, specifically, the upper cover plate 320 is provided with a plurality of inner mounting holes 321 and outer mounting holes 322 corresponding to the inner mounting holes 321, when the ceiling fan is installed, the rotating shaft 100 is hung on a roof, then the inner mounting holes 321 and the corresponding outer mounting holes 322 are selected, and the inner mounting holes 321 and the outer mounting holes 322 corresponding to the fan blades 323 are in threaded connection, so that the fan blades 323 can rotate along with the rotating assembly 300 in the process of rotating relative to the rotating shaft 100, thereby realizing the operation of the ceiling fan. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. An electric machine, comprising:
a rotating shaft;
the rotating assembly is arranged on the rotating shaft, rotates by taking the rotating shaft as a center, and is provided with a plurality of magnetic steel sheets in an annular array by taking the rotating shaft as a center;
the driving assembly is clamped on the rotating shaft and positioned in the rotating assembly, and the driving assembly drives the rotating assembly to move relative to the rotating shaft; a lower grinding ring is attached to the other end face of the static disc, and extension legs corresponding to the support plates are arranged on the upper grinding ring and the lower grinding ring; the static disc is detachably connected with an upper pressure ring used for pressing an upper grinding ring and a lower pressure ring used for pressing a lower grinding ring.
2. The motor of claim 1, wherein said rotating assembly comprises an upper cover plate and a lower cover plate mounted on the rotating shaft, a side casing is detachably connected between said upper cover plate and said lower cover plate, and said magnetic steel sheet is mounted on the inner wall of said side casing.
3. The electric motor of claim 2 wherein said side shells define a plurality of heat sink slots on an outer side thereof, said lower cover plate defining a plurality of arcuate slots in an annular array along a center thereof, said arcuate slots being generally arcuate.
4. The motor according to claim 2, wherein the upper cover plate is connected with the rotating shaft through an upper bearing, a positioning sleeve with a Z-shaped section is clamped between the upper cover plate and the rotating shaft, and the lower cover plate is connected with the rotating shaft through a lower bearing.
5. The electric machine of claim 4, wherein the upper bearing comprises an upper outer ring for connecting the positioning sleeve and an upper inner ring mounted on the rotating shaft, and the upper outer ring rotates relative to the upper inner ring; the lower bearing comprises a lower outer ring used for connecting the lower cover plate and a lower inner ring arranged on the rotating shaft, and the lower outer ring rotates relative to the lower inner ring.
6. The motor of claim 1, wherein the drive assembly comprises a stationary disc clamped to the shaft, wherein a plurality of support plates are arranged on the side of the stationary disc in an annular array along the central axis of the stationary disc, wherein coils are wound on the support plates, and wherein a gap is formed between the support plates and the magnetic steel sheets.
7. The motor of claim 2, wherein the rotating shaft is sleeved with a dust-proof sleeve, and the upper cover plate is provided with a ring groove for embedding the dust-proof sleeve.
8. A ceiling fan, comprising: an electrical machine as claimed in any one of claims 1 to 7, wherein the rotating assembly of the machine has a plurality of blades arranged thereon in an annular array along its central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252271.1A CN111404311A (en) | 2020-04-01 | 2020-04-01 | Motor and ceiling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252271.1A CN111404311A (en) | 2020-04-01 | 2020-04-01 | Motor and ceiling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111404311A true CN111404311A (en) | 2020-07-10 |
Family
ID=71413695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010252271.1A Pending CN111404311A (en) | 2020-04-01 | 2020-04-01 | Motor and ceiling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111404311A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201072856Y (en) * | 2007-01-29 | 2008-06-11 | 瑞格电子股份有限公司 | Direct current brushless motor stator and rotor for ceiling fan |
| CN204013163U (en) * | 2014-07-18 | 2014-12-10 | 浙江佳雪微特电机集团有限责任公司 | Ceiling fan DC brushless motor |
| CN206077184U (en) * | 2016-08-30 | 2017-04-05 | 北京精密机电控制设备研究所 | A kind of compound dipping lacquer is without the high power to weight ratio permagnetic synchronous motor of sensor |
| CN206922534U (en) * | 2017-07-07 | 2018-01-23 | 佛山市南海远东电器厂 | A kind of Novel ceiling-fan motor stator structure |
| CN208158300U (en) * | 2018-05-22 | 2018-11-27 | 金士盾科技股份有限公司 | The radiating machine casing of brush DC ceiling fan motor |
| JP2018204515A (en) * | 2017-06-02 | 2018-12-27 | 株式会社デンソー | Blower device |
| CN208835976U (en) * | 2018-10-31 | 2019-05-07 | 深圳市中达电机有限公司 | A kind of brushless single phase motor |
| WO2019240359A1 (en) * | 2018-06-12 | 2019-12-19 | 엘지전자 주식회사 | Ceiling fan and control method therefor |
-
2020
- 2020-04-01 CN CN202010252271.1A patent/CN111404311A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201072856Y (en) * | 2007-01-29 | 2008-06-11 | 瑞格电子股份有限公司 | Direct current brushless motor stator and rotor for ceiling fan |
| CN204013163U (en) * | 2014-07-18 | 2014-12-10 | 浙江佳雪微特电机集团有限责任公司 | Ceiling fan DC brushless motor |
| CN206077184U (en) * | 2016-08-30 | 2017-04-05 | 北京精密机电控制设备研究所 | A kind of compound dipping lacquer is without the high power to weight ratio permagnetic synchronous motor of sensor |
| JP2018204515A (en) * | 2017-06-02 | 2018-12-27 | 株式会社デンソー | Blower device |
| CN206922534U (en) * | 2017-07-07 | 2018-01-23 | 佛山市南海远东电器厂 | A kind of Novel ceiling-fan motor stator structure |
| CN208158300U (en) * | 2018-05-22 | 2018-11-27 | 金士盾科技股份有限公司 | The radiating machine casing of brush DC ceiling fan motor |
| WO2019240359A1 (en) * | 2018-06-12 | 2019-12-19 | 엘지전자 주식회사 | Ceiling fan and control method therefor |
| CN208835976U (en) * | 2018-10-31 | 2019-05-07 | 深圳市中达电机有限公司 | A kind of brushless single phase motor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |
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| RJ01 | Rejection of invention patent application after publication |