CN109995209A - A kind of motor for double-ended drive - Google Patents
A kind of motor for double-ended drive Download PDFInfo
- Publication number
- CN109995209A CN109995209A CN201910362087.XA CN201910362087A CN109995209A CN 109995209 A CN109995209 A CN 109995209A CN 201910362087 A CN201910362087 A CN 201910362087A CN 109995209 A CN109995209 A CN 109995209A
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- Prior art keywords
- motor
- bearing bracket
- drive
- drive end
- end cover
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- 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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- 238000009434 installation Methods 0.000 claims description 17
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- 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
- H02K5/16—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
- 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
- H02K7/20—Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of motor for double-ended drive, including first motor component and the second electric machine assembly, first motor component is connect with the second electric machine assembly by intermediate end cover and motor case, first motor component includes the first stator module, the first rotor component, first rotating shaft and the first drive end bearing bracket, and the second electric machine assembly includes the second stator module, the second rotor assembly, the second shaft and the second drive end bearing bracket；It is equipped with first bearing seat in first drive end bearing bracket, is equipped with 3rd bearing seat in the second drive end bearing bracket, intermediate end cover is correspondingly provided with second bearing seat and fourth bearing seat；First stator module and the second stator module are sleeved on inside motor case, and the both ends of motor case are separately connected the first drive end bearing bracket, the second drive end bearing bracket, and intermediate end cover installs the middle part for being connected to motor case.Two motors are merged into a motor by intermediate end cover, motor for double-ended drive is made all to be greatly improved in terms of space, energy consumption, noise reduction, power distribution reasonability improvement, reduce design cost.
Description
Technical field:
The present invention relates to a kind of motor for double-ended drive.
Background technique:
The loads such as many air conditioning for automobiles, window machines at present are by the motor-driven of Double shaft-extension, for proof load
Air quantity etc. needs to increase the surplus of design of electrical motor, and the load noise derived in this way is big, motor power loss is big, Wen Shenggao
Deng negative effect, energy saving, efficient theory, which is violated, to be proposed to country in this way；It makes an uproar though such as can solve using two seperated motors
The problem of sound, energy loss, but the load space of two monomer design of electrical motor scheme institute temporaries increases, very to load miniaturization
It is unfavorable.
Summary of the invention:
The object of the present invention is to provide a kind of motor for double-ended drive, motor for double-ended drive load noise in the prior art can solve
Greatly, the problem of motor power loss is big, temperature rise height etc..
The purpose of the present invention is what is be achieved by following technical proposals.
The object of the present invention is to provide a kind of motor for double-ended drive, it is characterised in that: including first motor component and the second electricity
Thermomechanical components, first motor component are connect with the second electric machine assembly by intermediate end cover and motor case, and first motor component includes
First stator module, the first rotor component, first rotating shaft and the first drive end bearing bracket, first rotating shaft are connect with the first rotor component, the
Stator group part is sleeved on outside the first rotor component, first bearing seat is equipped in the first drive end bearing bracket, intermediate end cover is in direction first
The one side of drive end bearing bracket is equipped with second bearing seat, and first bearing is equipped in first bearing seat and second bearing seat, and first rotating shaft is logical
First bearing is crossed to be supported in intermediate end cover and the first drive end bearing bracket；Second electric machine assembly includes the second stator module, the second rotor
Component, the second shaft and the second drive end bearing bracket, the second shaft are connect with the second rotor assembly, and the second stator module is sleeved on second turn
Outside sub-component, 3rd bearing seat is equipped in the second drive end bearing bracket, intermediate end cover is equipped with the 4th axis in the one side towards the second drive end bearing bracket
Seat is held, second bearing is installed in 3rd bearing seat and fourth bearing seat, the second shaft is supported on intermediate ends by second bearing
In lid and the second drive end bearing bracket；First stator module and the second stator module are sleeved on inside motor case, the both ends of motor case
It is separately connected the first drive end bearing bracket, the second drive end bearing bracket, intermediate end cover installs the middle part for being connected to motor case.
Motor case described above covers on outside the intermediate end cover, and the outer wall of intermediate end cover is fitted in the interior of motor case
Wall, the both ends of motor case are separately connected the first drive end bearing bracket and the second drive end bearing bracket, fixation hole, intermediate end cover are provided on motor case
It is provided with screw hole corresponding with fixation hole, motor case is screwed with intermediate end cover.
Motor case described above includes the first casing and the second casing, and the first drive end bearing bracket is equipped with the first seam allowance, before second
End cap is equipped with the second seam allowance, and the intermediate end cover is equipped with corresponding with the third seam allowance that the first seam allowance is correspondingly arranged and with the second seam allowance
The 4th seam allowance being arranged, the first casing are installed between the first drive end bearing bracket and intermediate end cover by the first seam allowance and third seam allowance, the
Two casings are mounted between intermediate end cover and the second drive end bearing bracket by the second seam allowance and the 4th seam allowance.
Intermediate end cover described above is equipped with several installation through-holes, and the first drive end bearing bracket is equipped with corresponding with installation through-hole the
One mounting hole, the second drive end bearing bracket are equipped with the second mounting hole corresponding with installation through-hole, and several long threaded rods are mounted on the first front end
On lid or the second drive end bearing bracket, long threaded rod passes through the first mounting hole, installation through-hole and the second mounting hole, and long threaded rod and nut cooperate
First drive end bearing bracket, the second drive end bearing bracket, intermediate end cover and motor case are fixed together.
The diameter of first casing described above and the diameter of the second casing be not identical.
The length of first casing described above and the length of the second casing is not identical.
Intermediate end cover described above is equipped with several air holes.
Compared with prior art, the present invention having the effect that
1) motor for double-ended drive, it is characterised in that: including first motor component and the second electric machine assembly, first motor component with
Second electric machine assembly is connected by intermediate end cover and motor case, and first motor component includes the first stator module, the first rotor
Component, first rotating shaft and the first drive end bearing bracket, first rotating shaft are connect with the first rotor component, and the first stator module is sleeved on first turn
Outside sub-component, first bearing seat is equipped in the first drive end bearing bracket, intermediate end cover is equipped with the second axis in the one side towards the first drive end bearing bracket
Seat is held, first bearing is installed in first bearing seat and second bearing seat, first rotating shaft is supported on intermediate ends by first bearing
In lid and the first drive end bearing bracket；Second electric machine assembly includes the second stator module, the second rotor assembly, the second shaft and the second front end
Lid, the second shaft are connect with the second rotor assembly, and the second stator module is sleeved on outside the second rotor assembly, is set in the second drive end bearing bracket
There is 3rd bearing seat, intermediate end cover is equipped with fourth bearing seat, 3rd bearing seat and the 4th axis in the one side towards the second drive end bearing bracket
It holds and second bearing is installed in seat, the second shaft is supported in intermediate end cover and the second drive end bearing bracket by second bearing；First is fixed
Sub-component and the second stator module are sleeved on inside motor case, and the both ends of motor case are separately connected the first drive end bearing bracket, second
Drive end bearing bracket, intermediate end cover install the middle part for being connected to motor case.Two motors are merged into a motor by intermediate end cover,
So that motor is able to satisfy the performance output of two motors, both can effectively solve monomer motor temperature rise is high, noise is big, shaft power cannot root
It is allocated according to actual demand, the problems such as energy loss is big, and can solve the big drawback of spatial volume shared by seperated motor, make electricity
Machine is all greatly improved improvement in terms of space, energy consumption, noise reduction, power distribution reasonability, can also will be 4 used in two motors
A end cap is reduced to 3, reduces the design cost of motor；
2) further advantage is in the partially unfolded detailed description of embodiment.
Detailed description of the invention:
Fig. 1 is the perspective view for the motor for double-ended drive that the embodiment of the present invention one provides；
Fig. 2 is the cross-sectional view for the motor for double-ended drive that the embodiment of the present invention one provides；
Fig. 3 is the explosive view for the motor for double-ended drive that the embodiment of the present invention one provides；
Fig. 4 is the perspective view of the intermediate end cover for the motor for double-ended drive that the embodiment of the present invention one provides；
Fig. 5 is the side view of the intermediate end cover for the motor for double-ended drive that the embodiment of the present invention one provides；
Fig. 6 is the perspective view of motor for double-ended drive provided by Embodiment 2 of the present invention；
Fig. 7 is the cross-sectional view of motor for double-ended drive provided by Embodiment 2 of the present invention；
Fig. 8 is the explosive view of motor for double-ended drive provided by Embodiment 2 of the present invention；
Fig. 9 is the perspective view of the intermediate end cover of motor for double-ended drive provided by Embodiment 2 of the present invention；
Figure 10 is the side view of the intermediate end cover of motor for double-ended drive provided by Embodiment 2 of the present invention；
Figure 11 is the structural schematic diagram of the preference of motor for double-ended drive provided by Embodiment 2 of the present invention.
Specific embodiment:
Below by specific embodiment and in conjunction with attached drawing, the present invention is described in further detail.
Embodiment one:
As shown in Figures 1 to 5, provided in this embodiment is a kind of motor for double-ended drive, it is characterised in that: including first motor
Component 1 and the second electric machine assembly 2, first motor component 1 and the second electric machine assembly 2 are connected by intermediate end cover 3 and motor case 4
It connecing, first motor component 1 includes the first stator module 11, the first rotor component 12, first rotating shaft 13 and the first drive end bearing bracket 14, the
One shaft 13 is connect with the first rotor component 12, and the first stator module 11 is sleeved on outside the first rotor component 12, the first drive end bearing bracket
It is equipped with first bearing seat 141 in 14, intermediate end cover 3 is equipped with second bearing seat 31 in the one side towards the first drive end bearing bracket 14, and first
First bearing 15a, 15b is installed, first rotating shaft 13 passes through first bearing 15a, 15b in bearing block 141 and second bearing seat 31
It is supported in intermediate end cover 3 and the first drive end bearing bracket 14；Second electric machine assembly 2 includes the second stator module 21, the second rotor assembly
22, the second shaft 23 and the second drive end bearing bracket 24, the second shaft 23 are connect with the second rotor assembly 22, the second stator module 21 suit
Outside the second rotor assembly 22,3rd bearing seat 241 is equipped in the second drive end bearing bracket 24, intermediate end cover 3 is in the second drive end bearing bracket of direction
24 one side is equipped with fourth bearing seat 32, is equipped with second bearing 25a, 25b in 3rd bearing seat 241 and fourth bearing seat 32,
Second shaft 23 is supported in intermediate end cover 3 and the second drive end bearing bracket 24 by second bearing 25a, 25b；First stator module 11 with
Second stator module 21 is sleeved on 4 the inside of motor case, before the both ends of motor case 4 are separately connected the first drive end bearing bracket 14, second
End cap 24, intermediate end cover 3 install the middle part for being connected to motor case 4.
Two motors are merged into a motor by intermediate end cover 3, enable motor by motor for double-ended drive described in the present embodiment
The performance output for meeting two motors, both can effectively solve monomer motor temperature rise is high, noise is big, shaft power cannot be according to practical need
Ask be allocated, the problems such as energy loss is big, and can solve the big drawback of spatial volume shared by seperated motor, make motor in sky
Between, be all greatly improved improvement in terms of energy consumption, noise reduction, power distribution reasonability, can also be by 4 end caps used in two motors
3 are reduced to, the design cost of motor for double-ended drive is reduced.
Motor case 4 described above covers on outside the intermediate end cover 3, and the outer wall of intermediate end cover 3 is fitted in motor case 4
Inner wall, the both ends of motor case 4 are separately connected the first drive end bearing bracket 14 and the second drive end bearing bracket 24, are provided with fixation hole on motor case 4
41, it is fixed by screw 51 that intermediate end cover 3 is provided with screw hole 33 corresponding with fixation hole 41, motor case 4 and intermediate end cover 3.In
Between end cap and motor case be fastenedly connected using screw, guarantee that intermediate end cover is reliable in the installation of motor case inner cavity, it is easy for installation,
The height of intermediate end cover can be set according to demand.
Intermediate end cover 3 described above is equipped with several air holes 34.Air hole 34 strengthens the heat dissipation inside motor.
Embodiment two:
As shown in Fig. 6 to Figure 10, motor for double-ended drive provided in this embodiment is similar with motor for double-ended drive described in embodiment one,
The difference is that:
Motor case 4 described above includes the first casing 42 and the second casing 43, and the first drive end bearing bracket 14 is equipped with the first seam allowance
142, the second drive end bearing bracket 24 is equipped with the second seam allowance 242, and the intermediate end cover 3 is equipped with the third being correspondingly arranged with the first seam allowance 142
Seam allowance 35 and the 4th seam allowance 36 being correspondingly arranged with the second seam allowance 242, the first casing 42 pass through the first seam allowance 142 and third seam allowance
Between 35 the first drive end bearing brackets 14 of installation and intermediate end cover 3, the second casing 43 is mounted on by the second seam allowance 242 and the 4th seam allowance 36
Between intermediate end cover 3 and the second drive end bearing bracket 24.It is positioned between intermediate end cover 3 and the first casing 42, the second casing 43 by seam allowance,
Guarantee that intermediate end cover is reliable in chassis cavity installation, further increases the shape that facilitates of installation, the height of intermediate end cover can be according to need
Ask setting.
Intermediate end cover 3 described above is equipped with several installation through-holes 37, and the first drive end bearing bracket 14 is equipped with and installation through-hole 37
Corresponding first mounting hole 143, the second drive end bearing bracket 24 are equipped with second mounting hole 243, Ruo Ganchang corresponding with installation through-hole 37
Stud 52 is mounted on the first drive end bearing bracket 14 or the second drive end bearing bracket 24, and long threaded rod 52 passes through the first mounting hole 143, installation through-hole 37
And second mounting hole 243, long threaded rod 52 and nut 53 cooperate by the first drive end bearing bracket 14, the second drive end bearing bracket 24, intermediate end cover 3 and
Motor case 4 is fixed together.
As a kind of preference, as shown in figure 11, the diameter D1 of the first casing 42 described above and the second casing 43 it is straight
Diameter D2 is not identical.The specification of first motor component 1 and the second electric machine assembly 2 can be designed to two different rule according to actual needs
Lattice can make two kinds of different size motors merge into a motor.
As another preference, the length H1 of the first casing 42 described above can also be with the length H2 of the second casing 43 not
It is identical.
Above embodiments are better embodiment of the invention, and embodiments of the present invention are not limited thereto, other are any
Made changes, modifications, substitutions, combinations, simplifications without departing from the spirit and principles of the present invention are equivalent displacement side
Formula is included within the scope of the present invention.
Claims (7)
1. a kind of motor for double-ended drive, it is characterised in that: including first motor component (1) and the second electric machine assembly (2), first motor
Component (1) is connect with the second electric machine assembly (2) by intermediate end cover (3) and motor case (4), and first motor component (1) includes
First stator module (11), the first rotor component (12), first rotating shaft (13) and the first drive end bearing bracket (14), first rotating shaft (13) with
The first rotor component (12) connection, the first stator module (11) are sleeved on the first rotor component (12) outside, the first drive end bearing bracket (14)
Interior to be equipped with first bearing seat (141), intermediate end cover (3) is equipped with second bearing seat in the one side towards the first drive end bearing bracket (14)
(31), first bearing seat (141) and second bearing seat (31) it is each in be equipped with first bearing (15a, 15b), first rotating shaft (13)
It is supported in intermediate end cover (3) and the first drive end bearing bracket (14) by first bearing (15a, 15b)；Second electric machine assembly (2) includes
Second stator module (21), the second rotor assembly (22), the second shaft (23) and the second drive end bearing bracket (24), the second shaft (23) with
Second rotor assembly (22) connection, the second stator module (21) are sleeved on the second rotor assembly (22) outside, the second drive end bearing bracket (24)
Interior to be equipped with 3rd bearing seat (241), intermediate end cover (3) is equipped with fourth bearing seat in the one side towards the second drive end bearing bracket (24)
(32), it is respectively equipped with second bearing (25a, 25b) in 3rd bearing seat (241) and fourth bearing seat (32), the second shaft (23)
It is supported in intermediate end cover (3) and the second drive end bearing bracket (24) by second bearing (25a, 25b)；First stator module (11) and the
Two stator modules (21) are sleeved on inside motor case (4), the both ends of motor case (4) be separately connected the first drive end bearing bracket (14),
Second drive end bearing bracket (24), intermediate end cover (3) install the middle part for being connected to motor case (4).
2. a kind of motor for double-ended drive according to claim 1, it is characterised in that: the motor case (4) covers in described
Between end cap (3) outside, the outer wall of intermediate end cover (3) is fitted in the inner wall of motor case (4), and the both ends of motor case (4) connect respectively
The first drive end bearing bracket (14) and the second drive end bearing bracket (24) are connect, is provided on motor case (4) fixation hole (41), intermediate end cover (3) is provided with
Screw hole (33) corresponding with fixation hole (41), motor case (4) and intermediate end cover (3) are fixed by screw (51).
3. a kind of motor for double-ended drive according to claim 1, it is characterised in that: (4 include the first casing to the motor case
(42) and the second casing (43), the first drive end bearing bracket (14) are equipped with the first seam allowance (142), and the second drive end bearing bracket (24) is equipped with the second seam allowance
(242), the intermediate end cover (3) be equipped with the third seam allowance (35) that is correspondingly arranged with the first seam allowance (142) and with the second seam allowance
(242) the 4th seam allowance (36) being correspondingly arranged, the first casing (42) install the by the first seam allowance (142) and third seam allowance (35)
Between one drive end bearing bracket (14) and intermediate end cover (3), the second casing (43) is installed by the second seam allowance (242) and the 4th seam allowance (36)
Between intermediate end cover (3) and the second drive end bearing bracket (24).
4. a kind of motor for double-ended drive according to claim 3, it is characterised in that: the intermediate end cover (3) is equipped with several
Installation through-hole (37), the first drive end bearing bracket (14) are equipped with the first mounting hole (143) corresponding with installation through-hole (37), the second front end
It covers (24) and is equipped with the second mounting hole (243) corresponding with installation through-hole (37), several long threaded rods (52) are mounted on the first front end
It covers on (14) or the second drive end bearing bracket (24), long threaded rod (52) passes through the first mounting hole (143), installation through-hole (37) and the second peace
It fills hole (243), long threaded rod (52) and nut (53) cooperate the first drive end bearing bracket (14), the second drive end bearing bracket (24), intermediate end cover (3)
It is fixed together with motor case (4).
5. a kind of motor for double-ended drive according to claim 3, it is characterised in that: the diameter D1 of first casing (42) and
The diameter D2 of second casing (43) is not identical.
6. a kind of motor for double-ended drive according to claim 3, it is characterised in that: the length H1 of first casing (42) and
The length H2 of second casing (43) is not identical.
7. a kind of motor for double-ended drive as claimed in any of claims 1 to 6, it is characterised in that: the intermediate end cover
(3) several air holes (34) are equipped with.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362087.XA CN109995209A (en) | 2019-04-30 | 2019-04-30 | A kind of motor for double-ended drive |
| PCT/CN2019/105358 WO2020220557A1 (en) | 2019-04-30 | 2019-09-11 | Dual shaft-extension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362087.XA CN109995209A (en) | 2019-04-30 | 2019-04-30 | A kind of motor for double-ended drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109995209A true CN109995209A (en) | 2019-07-09 |
Family
ID=67135860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910362087.XA Pending CN109995209A (en) | 2019-04-30 | 2019-04-30 | A kind of motor for double-ended drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109995209A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431364A (en) * | 2020-04-24 | 2020-07-17 | 深圳九九无线电子科技有限公司 | Modular multi-rotor brushless motor |
| WO2020220557A1 (en) * | 2019-04-30 | 2020-11-05 | 中山大洋电机股份有限公司 | Dual shaft-extension motor |
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| CN203660726U (en) * | 2013-12-20 | 2014-06-18 | 中山大洋电机制造有限公司 | Motor end cover structure and motor employing same |
| CN203883600U (en) * | 2014-05-29 | 2014-10-15 | 中山大洋电机股份有限公司 | Motor installation support and motor using same |
| CN204497880U (en) * | 2015-01-29 | 2015-07-22 | 湖北惠洋电器制造有限公司 | A kind of iron-shell motor |
| CN108199550A (en) * | 2018-01-31 | 2018-06-22 | 佛山市山凌科技有限公司 | Blower motor |
| CN208190464U (en) * | 2018-03-28 | 2018-12-04 | 中山大洋电机股份有限公司 | A kind of motor for double-ended drive |
| CN209545399U (en) * | 2019-04-30 | 2019-10-25 | 中山大洋电机股份有限公司 | A kind of motor for double-ended drive |
-
2019
- 2019-04-30 CN CN201910362087.XA patent/CN109995209A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203660726U (en) * | 2013-12-20 | 2014-06-18 | 中山大洋电机制造有限公司 | Motor end cover structure and motor employing same |
| CN203883600U (en) * | 2014-05-29 | 2014-10-15 | 中山大洋电机股份有限公司 | Motor installation support and motor using same |
| CN204497880U (en) * | 2015-01-29 | 2015-07-22 | 湖北惠洋电器制造有限公司 | A kind of iron-shell motor |
| CN108199550A (en) * | 2018-01-31 | 2018-06-22 | 佛山市山凌科技有限公司 | Blower motor |
| CN208190464U (en) * | 2018-03-28 | 2018-12-04 | 中山大洋电机股份有限公司 | A kind of motor for double-ended drive |
| CN209545399U (en) * | 2019-04-30 | 2019-10-25 | 中山大洋电机股份有限公司 | A kind of motor for double-ended drive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020220557A1 (en) * | 2019-04-30 | 2020-11-05 | 中山大洋电机股份有限公司 | Dual shaft-extension motor |
| CN111431364A (en) * | 2020-04-24 | 2020-07-17 | 深圳九九无线电子科技有限公司 | Modular multi-rotor brushless motor |
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