CN115733327A - High-rotating-speed brushless dust collector motor - Google Patents

High-rotating-speed brushless dust collector motor Download PDF

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Publication number
CN115733327A
CN115733327A CN202211644486.3A CN202211644486A CN115733327A CN 115733327 A CN115733327 A CN 115733327A CN 202211644486 A CN202211644486 A CN 202211644486A CN 115733327 A CN115733327 A CN 115733327A
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China
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impeller
assembly
stator
support
fixed
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CN202211644486.3A
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CN115733327B (en
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刘德广
赵辉
文海斌
白亚磊
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Hunan Guomeng Technology Co ltd
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Hunan Guomeng Technology Co ltd
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Abstract

The invention belongs to the technical field of dust collectors, and particularly relates to a high-rotation-speed brushless dust collector motor which comprises a circular flow channel assembly, wherein a stator assembly is coaxially arranged at the axis of the flow channel assembly, a rotor assembly is movably sleeved at the axis of the stator assembly, the stator assembly is sleeved on the outer surface of the rotor assembly and then fixed with the flow channel assembly into a whole, an impeller assembly is arranged at one end of the rotor assembly after penetrating out of the axis of the flow channel assembly, a support assembly fixed with the flow channel assembly into a whole is coaxially arranged at one end of the stator assembly, a coaxial fan cover assembly is arranged at one end of the support assembly opposite to the impeller assembly to realize the packaging action of the tail end of a motor, and an end cover assembly is fixedly arranged at the end face of the front end of the support assembly to realize the packaging action of the front end of the motor. The high-rotating-speed brushless dust collector motor has the characteristics of high rotating speed, large suction force, large flow, high efficiency, low heat energy, low noise, long service life and the like.

Description

High-rotating-speed brushless dust collector motor
Technical Field
The invention relates to the technical field of dust collectors, in particular to a high-rotation-speed brushless dust collector motor.
Background
With the rapid development of the times, people pursue the living quality more and more, and the dust collector is more and more accepted and pursued by many people at home and abroad as the most practical mainstream product of the clean market and a good helper in the fields of intelligent home and automobiles.
At present, the motor of the dust collector on the market mostly takes the series excited brush motor as a main part, the motor has low rotating speed, small suction, small flow, low efficiency, high heat generation, short service life, large noise and poor use experience, so the market gradually develops to the field of the brushless motor.
Disclosure of Invention
Based on the technical problem that the use experience is poor due to the fact that the existing dust collector motor is low in rotating speed, the invention provides a high-rotating-speed brushless dust collector motor.
The invention provides a high-rotating-speed brushless dust collector motor which comprises a circular flow channel assembly, wherein a stator assembly is coaxially arranged at the axis of the flow channel assembly, a rotor assembly is movably sleeved at the axis of the stator assembly, and the stator assembly is sleeved on the outer surface of the rotor assembly and then fixed with the flow channel assembly into a whole.
And one end of the rotor component penetrates out of the axis of the flow passage component and is provided with an impeller component.
And a bracket component which is fixed with the runner component into a whole is coaxially arranged at one end of the stator component.
The bracket component and the one end that impeller subassembly carried on the back mutually is equipped with the encapsulation action that realizes the motor tail end with the fan housing subassembly of axle center.
An end cover component is fixedly mounted on the front end face of the support component to achieve the packaging action of the front end of the motor.
Preferably, the flow passage assembly is composed of an outer air passage, an inner stator impeller and a stator impeller fixing screw for fixing the inner stator impeller.
The inner fixed impeller is sleeved to the inside of the outer air duct along the axis direction and then screwed and fixed by the fixed impeller fixing screw threads.
Through above-mentioned technical scheme, the flow direction and the angle that a plurality of stator on the interior fixed impeller can wind channel wind, prevent to appear in the wind channel inhomogeneous and the unstable and noise's of flow that arouses problem.
Preferably, the inner bottom wall of the outer air duct is provided with positioning columns distributed in an annular array, the positioning columns are divided into two groups, the outer ends of one group of the positioning columns are provided with guide grooves for guiding and inserting the inner fixed impeller, and then the fixed impeller fixing screws penetrate through the inner part of the inner fixed impeller along the axis direction and are in threaded connection with the positioning columns.
Through the technical scheme, the group of positioning columns with the guide grooves can ensure the coaxiality during assembly, and can prevent the radial movement.
Preferably, the stator assembly is composed of a stator core, a winding bobbin and a contact pin.
The inner wall of the stator core is coaxially and fixedly wrapped on the outer surface of the winding coil holder, a contact pin used for being electrically connected with input or output is further fixedly installed at the joint of the stator core and the winding coil holder, and the end face of the stator core is overlapped with a stator chamber step in the inner stator setting impeller.
Through the technical scheme, the stator core and the winding line frame are integrally installed, the assembling precision can be ensured, and the eccentric problem is prevented.
Preferably, the rotor assembly comprises a motor rotating shaft with one end provided with threads, a magnetic ring, a front shaft sleeve, a rear shaft sleeve, a front bearing and a rear bearing.
The magnetic ring is coaxially and fixedly sleeved at the middle position of the outer surface of the motor rotating shaft, the front shaft sleeve and the rear shaft sleeve are respectively and movably sleeved at two ends of the motor rotating shaft and are overlapped with two end faces of the magnetic ring, and the winding wire frame is coaxially sleeved with the magnetic ring and then electromagnetically drives the magnetic ring to drive the motor rotating shaft to rotate.
Through above-mentioned technical scheme, the bearing is as the standard component, can make motor shaft's assembly tolerance obtain fine assurance, later reuses the terminal surface of axle sleeve and the inner circle end face contact of bearing, can fully guarantee the mounted position of bearing in motor shaft, can also utilize the bearing precision to prevent the problem emergence of end face run-out simultaneously.
Preferably, the inner ring of the front bearing penetrates through the threaded end of the motor rotating shaft and is sleeved on the outer surface of the motor rotating shaft in a superposed manner, and the outer ring of the front bearing is inserted into the inner wall of the bearing chamber of the inner fixed impeller in a superposed manner.
Through above-mentioned technical scheme, the front bearing assembly part that has the high accuracy can guarantee the axiality tolerance when motor shaft and outer wind channel and interior fixed impeller installation to guarantee that the even impeller of following of air is fixed through, help the suction of dust catcher, the improvement of flow and efficiency, simultaneously, the axiality has been guaranteed, also can reduce vibrations and the noise that the beating that eccentric brought causes to the side.
Preferably, the bracket component comprises wave form fixed ring, support and support screw, the terminal surface fixed mounting of support has the screw base that is annular array.
The outer ring of the rear bearing penetrates through the winding wire frame and then is spliced with the inner wall of the bearing cavity of the support in a coincident mode, the end face of a support column of the support is spliced with a step of the stator core in a coincident mode so as to prevent circumferential rotation, and a support screw penetrates through the support column of the support and a groove in the outer surface of the stator core and then is screwed with a step of the stator chamber in the inner stator impeller in a threaded mode.
Through above-mentioned technical scheme, not only can fix stator module, can also guarantee the axiality of stator core and motor shaft to the problem that the eccentric runout takes place is prevented.
Preferably, the end cover assembly is composed of a support cover plate and a cover plate screw, an inner end face of the support cover plate is overlapped with an end face of the screw base, and then the cover plate screw penetrates through the support cover plate and is screwed with the end face of the screw base.
Through the technical scheme, the effect of integrally packaging the front end of the motor can be realized.
Preferably, the impeller assembly consists of an impeller lower gasket with steps, an impeller upper gasket and a fixing nut.
The wave-shaped fixed ring, the impeller lower gasket, the impeller and the impeller upper gasket are sequentially sleeved on the outer surface of the motor rotating shaft, then the fixing nut is screwed up with the thread of the motor rotating shaft to realize the fixing action, and finally the motor rotating shaft drives the impeller to rotate to generate wind power.
And two end faces of the wave-shaped fixed ring are respectively contacted and pressed with the inner fixed impeller and the end face of the impeller lower gasket.
Through above-mentioned technical scheme, the gasket can increase the area that the fastening was screwed up, can avoid high-speed rotation in-process to produce not hard up problem simultaneously and take place.
Preferably, the fan housing subassembly comprises damping ring and fan housing, the damping ring is located outer wind channel and the shock attenuation action is realized to the vibrations that the impeller produced between the impeller, the inner wall of fan housing with the impeller is wrapped the back with outer fixed cup jointing of surface in wind channel.
Through above-mentioned technical scheme, the fan housing of axle center department fretwork can realize the water conservancy diversion to inspiratory air, can help improving the effect that the impeller inhaled air flow was inhaled when protecting the impeller, and the damping ring has simultaneously can be right the vibrations that the impeller produced carry out absorbing effect.
The beneficial effects of the invention are as follows:
the brushless dust collector motor has high rotating speed which can reach 5-10 thousands of turns, and realizes the characteristics of large suction force, large flow, high efficiency, low heat energy, low noise, long service life and the like.
Drawings
FIG. 1 is a schematic view of a high speed brushless vacuum cleaner motor according to the present invention;
FIG. 2 is an exploded perspective view of a high speed brushless vacuum motor according to the present invention;
FIG. 3 is a top view of a flow channel assembly of a high speed brushless vacuum cleaner motor according to the present invention;
FIG. 4 is a bottom view of a flow channel assembly of a high speed brushless vacuum cleaner motor in accordance with the present invention;
fig. 5 is a top perspective view of a stator assembly of a high speed brushless vacuum cleaner motor according to the present invention;
FIG. 6 is a bottom perspective view of a stator assembly of a high speed brushless vacuum motor in accordance with the present invention;
FIG. 7 is a perspective view of a rotor assembly of a high speed brushless vacuum cleaner motor according to the present invention;
FIG. 8 is a perspective view of a bracket assembly of a high speed brushless vacuum motor according to the present invention;
fig. 9 is a perspective view of a bracket structure of a high-speed brushless vacuum cleaner motor according to the present invention.
In the figure: 1. an outer air duct; 101. a positioning column; 102. an arc-shaped blade; 103. a special-shaped fixing plate; 2. an inner stator impeller is arranged; 201. arc guide vanes; 202. special-shaped heat dissipation holes; 3. fixing screws for fixing the impellers; 4. a stator core; 41. a tooth socket; 42. positioning a groove; 43. a wire tail positioning support; 5. a winding wire frame; 6. inserting a pin; 7. a motor shaft; 8. a magnetic ring; 9. a front shaft sleeve; 10. a rear shaft sleeve; 11. a front bearing; 12. a rear bearing; 13. wave-shaped circling; 14. a support; 141. a screw base; 142. heat dissipation holes; 15. a bracket screw; 16. an impeller lower gasket; 17. an impeller; 18. a gasket is arranged on the impeller; 19. fixing a nut; 20. a damping ring; 21. a fan housing; 22. a bracket cover plate; 23. a cover plate screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 9, a high-speed brushless cleaner motor includes a flow channel assembly having a circular shape. The flow channel assembly comprises an outer air channel 1, an inner fixed impeller 2 and a fixed impeller fixing screw 3 for fixing the inner fixed impeller 2.
The inner fixed impeller 2 is sleeved inside the outer air duct 1 along the axis direction and then screwed and fixed by using the fixed impeller fixing screw 3, the flow direction and the angle of wind in the air duct can be adjusted by a plurality of guide vanes on the inner fixed impeller 2, and the problems of unstable flow and noise caused by non-uniformity in the air duct are prevented.
Outer wind channel 1 has a plurality of overlapping stator annular array to distribute and casing one-piece, outer wind channel 1's interior bottom wall position is equipped with the reference column 101 that is annular array and distributes, reference column 101 divide into two sets ofly, the guide way that is used for interior fixed impeller 2 direction grafting is offered to the outer end of a set of reference column 101 wherein, later fixed impeller fixed screw 3 from interior fixed impeller 2's inside along the axis direction pass back and reference column 101 threaded connection, a set of reference column 101 that has the guide way can guarantee the axiality when assembling, also can prevent radial movement's problem from appearing.
The outside of interior fixed impeller 2 sets up a plurality of arc stator 201 of taking, and these arc stator 201 are ring array and distribute, and the inside of interior fixed impeller 2 establishes a plurality of special-shaped louvre 202 ring array and distributes, and is located interior fixed impeller 2 and is close to the front end of outer wind channel 1. In addition, a plurality of arc-shaped blades 102 distributed in an annular array are further arranged on the outer air duct 1, and the arc-shaped blades 102 are arranged at the rear end of the outer air duct 1 after being fixed in an annular mode through an irregular-shaped fixing plate 103 arranged up and down.
The axis of the flow channel component is coaxially provided with a stator component, the axis of the stator component is movably sleeved with a rotor component, and the stator component is sleeved on the outer surface of the rotor component and then fixed with the flow channel component into a whole.
The stator assembly is composed of a stator core 4, a winding bobbin 5 and a contact pin 6. The inner wall of the stator core 4 is fixedly wrapped on the outer surface of the winding wire frame 5 coaxially, a contact pin 6 used for electrically connecting input or output is fixedly installed at the joint of the stator core 4 and the winding wire frame 5, the end face of the stator core 4 is overlapped with a step of a stator chamber in the inner fixed impeller 2, the stator core 4 and the winding wire frame 5 are integrally installed, the assembling precision can be guaranteed, and the eccentric problem is prevented.
The stator core 4 is provided with a plurality of tooth grooves 41 and positioning grooves 42 which are distributed in a ring array, the winding bobbin 5 is provided with a plurality of bobbin tail positioning supports 43, and the contact pins 6 of the bobbin are arranged at the front end of the winding bobbin 5. Thereby forming a stator assembly disposed at the front end of the inner stator impeller 2.
The rotor subassembly is equipped with screwed motor shaft 7 by one end, the magnetic ring 8, front axle sleeve 9, back axle sleeve 10, front bearing 11 and back bearing 12 are constituteed, magnetic ring 8 cup joints at the surface middle part position of motor shaft 7 with the axle center is fixed, later front axle sleeve 9 and back axle sleeve 10 activity cup joint respectively at the both ends of motor shaft 7 and coincide with two terminal surfaces of magnetic ring 8, the back electromagnetism drive magnetic ring 8 that cup joints with the axle center with magnetic ring 8 of winding line frame 5 and magnetic ring 8 drives motor shaft 7 and rotates, the bearing is as the standard component, can make the assembly tolerance of motor shaft 7 obtain fine assurance, later reuse the terminal surface of axle sleeve and the inner circle end face contact of bearing, can fully guarantee the mounted position of bearing on motor shaft 7, can also utilize the bearing precision to prevent that the problem of terminal surface from beating from taking place simultaneously.
The inner ring of the front bearing 11 penetrates through the threaded end of the motor rotating shaft 7 and is sleeved on the outer surface of the motor rotating shaft 7 in a matching mode, the outer ring of the front bearing 11 is spliced to the inner wall of the bearing chamber of the inner fixed impeller 2 in a matching mode, a high-precision front bearing 11 assembly part is provided, the coaxiality tolerance of the motor rotating shaft 7, the outer air duct 1 and the inner fixed impeller 2 during installation can be guaranteed, accordingly, the air can uniformly pass through the inner fixed impeller 2, the suction force of a dust collector is facilitated, the flow and the efficiency are improved, meanwhile, the coaxiality is guaranteed, and the vibration and the noise caused by the jumping caused by eccentricity can be reduced laterally.
And one end of the stator assembly is coaxially provided with a bracket assembly which is fixed with the runner assembly into a whole. The bracket component comprises a wave-shaped fixed ring 13, a bracket 14 and a bracket screw 15, wherein the end surface of the bracket 14 is fixedly provided with a screw base 141 in an annular array.
The outer lane of rear bearing 12 passes behind winding line frame 5 coincidence and inserts to the bearing cavity inner wall department of support 14, the support post terminal surface of support 14 is pegged graft with the step department of stator core 4 and is coincided in order to prevent circumferential direction, support screw 15 passes behind the support post of support 14 and the surface recess of stator core 4 and screws up with the stator chamber step department screw thread in the interior fixed impeller 2, not only can fix stator module, can also guarantee the axiality of stator core 4 and motor shaft 7, thereby prevent the problem of taking place eccentric runout and take place. The inside of the bracket 14 is also provided with irregular heat dissipation holes 142 distributed in an annular array for heat dissipation.
An end cover component is fixedly arranged on the front end face of the support component to realize the packaging action of the front end of the motor.
The end cover assembly comprises a support cover plate 22 and a cover plate screw 23, the inner end face of the support cover plate 22 is overlapped with the end face of the screw base 141, and then the cover plate screw 23 penetrates through the support cover plate 22 to be screwed with the end face of the screw base 141, so that the effect of integrally packaging the front end of the motor can be achieved.
One end of the rotor component penetrates out of the axis of the runner component and then is provided with a blade component. The impeller assembly consists of an impeller lower gasket 16 with steps, an impeller 17, an impeller upper gasket 18 and a fixing nut 19.
Wave form decide circle 13, gasket 16 under the impeller, gasket 18 cup joints to the surface department of motor shaft 7 on impeller 17 and the impeller in proper order, later fixing nut 19 realizes fixed action with the screw thread department screw thread tightening of motor shaft 7, motor shaft 7 drives impeller 17 at last and rotates and produce wind-force, two terminal surfaces of wave form decide circle 13 compress tightly with the terminal surface contact of gasket 16 under interior fixed impeller 2 and the impeller respectively, the gasket can increase the area that the fastening was screwed up, can avoid the high-speed rotation in-process to produce not hard up problem emergence simultaneously.
And a coaxial fan cover component is arranged at one end of the bracket component, which is opposite to the impeller component, so that the packaging action of the tail end of the motor is realized.
The fan housing assembly is composed of a damping ring 20 and a fan housing 21, the damping ring 20 is located between the outer air duct 1 and the impeller 17 to achieve damping action on vibration generated by the impeller 17, and the inner wall of the fan housing 21 covers the impeller 17 and then is fixedly sleeved with the outer surface of the outer air duct 1.
The fan cover 21 with the hollow shaft center can guide sucked air, protect the impeller 17 and help to improve the effect of the flow of the sucked air of the impeller 17, and the damping ring 20 has the effect of damping vibration generated by the impeller 17.
After the motor is assembled by adopting the parts, the performances are as follows:
voltage of 21.6V
Power of 200W
First gear speed 45000
Second gear speed 80000
Third gear speed 102000
Locked-rotor speed 150300
Suction force Greater than 23Kpa
Flow rate 1.65m³/min
Life span Over 800h
Efficiency of 55%
Noise (F) The bare machine is less than 90db and is 30cm away from the air inlet
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A high rotational speed brushless dust catcher motor which characterized in that: the flow channel assembly comprises a circular flow channel assembly, wherein a stator assembly is coaxially arranged at the axis of the flow channel assembly, a rotor assembly is movably sleeved at the axis of the stator assembly, and the stator assembly is sleeved on the outer surface of the rotor assembly and then fixed with the flow channel assembly into a whole;
one end of the rotor component penetrates out of the axis of the flow channel component and is provided with an impeller component;
one end of the stator component is coaxially provided with a bracket component which is fixed with the runner component into a whole;
a coaxial fan cover component is arranged at one end of the bracket component, which is opposite to the impeller component, so that the tail end of the motor can be packaged;
an end cover component is fixedly mounted on the front end face of the support component to achieve the packaging action of the front end of the motor.
2. A high speed brushless vacuum cleaner motor according to claim 1, wherein: the flow channel assembly comprises an outer air channel (1), an inner fixed impeller (2) and a fixed impeller fixing screw (3) for fixing the inner fixed impeller (2);
the inner fixed impeller (2) is sleeved to the inner portion of the outer air duct (1) along the axis direction and then screwed and fixed through the fixed impeller fixing screw (3).
3. A high speed brushless vacuum cleaner motor according to claim 2, wherein: the inner bottom wall position of outer wind channel (1) is equipped with and is annular array distribution's reference column (101), reference column (101) divide into two sets ofly, and wherein a set of the guide way that is used for interior fixed impeller (2) direction grafting is seted up to the outer end of reference column (101), later fixed impeller set screw (3) follow the inside of interior fixed impeller (2) along the axis direction pass the back with reference column (101) threaded connection.
4. A high speed brushless cleaner motor as recited in claim 3, wherein: the stator assembly consists of a stator core (4), a winding wire frame (5) and a contact pin (6);
the inner wall of the stator core (4) is fixedly wrapped on the outer surface of the winding line frame (5) with the same axis, a contact pin (6) used for electrically connecting input or output is further fixedly installed at the joint of the stator core (4) and the winding line frame (5), and the end face of the stator core (4) is coincided with a stator chamber step in the inner stator positioning impeller (2).
5. A high speed brushless cleaner motor according to claim 4, wherein: the rotor assembly consists of a motor rotating shaft (7) with threads at one end, a magnetic ring (8), a front shaft sleeve (9), a rear shaft sleeve (10), a front bearing (11) and a rear bearing (12);
the magnetic ring (8) is coaxially and fixedly sleeved at the middle position of the outer surface of the motor rotating shaft (7), then the front shaft sleeve (9) and the rear shaft sleeve (10) are respectively movably sleeved at two ends of the motor rotating shaft (7) and are overlapped with two end faces of the magnetic ring (8), and the winding wire frame (5) and the magnetic ring (8) are coaxially sleeved and then are electromagnetically driven to drive the magnetic ring (8) to drive the motor rotating shaft (7) to rotate.
6. A high speed brushless cleaner motor according to claim 5, wherein: the inner ring of the front bearing (11) penetrates through the threaded end of the motor rotating shaft (7) and is sleeved on the outer surface of the motor rotating shaft (7) in a superposition mode, and the outer ring of the front bearing (11) is inserted into the inner wall of the bearing chamber of the inner fixed impeller (2) in a superposition mode.
7. A high speed brushless vacuum cleaner motor according to claim 6, wherein: the support assembly consists of a wave-shaped fixed ring (13), a support (14) and support screws (15), wherein screw bases (141) in an annular array are fixedly arranged on the end face of the support (14);
the outer ring of the rear bearing (12) penetrates through the winding line frame (5) and then is coincided and inserted to the inner wall of a bearing cavity of the support (14), the end face of a support column of the support (14) is coincided with the step of the stator core (4) in an inserting mode to prevent circumferential rotation, and a support screw (15) penetrates through the support column of the support (14) and the outer surface groove of the stator core (4) and then is screwed with the step of the stator cavity in the inner stator impeller (2).
8. A high speed brushless vacuum cleaner motor according to claim 7, wherein: the end cover assembly is composed of a support cover plate (22) and a cover plate screw (23), the inner end face of the support cover plate (22) is overlapped with the end face of the screw base (141), and then the cover plate screw (23) penetrates through the support cover plate (22) to be screwed with the end face of the screw base (141).
9. A high speed brushless vacuum cleaner motor according to claim 8, wherein: the impeller assembly consists of an impeller lower gasket (16) with steps, an impeller (17), an impeller upper gasket (18) and a fixing nut (19);
the wave-shaped fixed ring (13), the impeller lower gasket (16), the impeller (17) and the impeller upper gasket (18) are sequentially sleeved to the outer surface of the motor rotating shaft (7), then the fixing nut (19) is screwed with the thread of the motor rotating shaft (7) to realize a fixing action, and finally the motor rotating shaft (7) drives the impeller (17) to rotate to generate wind power;
and two end faces of the wave-shaped fixed ring (13) are respectively contacted and pressed with the end faces of the inner fixed impeller (2) and the impeller lower gasket (16).
10. A high speed brushless cleaner motor as recited in claim 9, wherein: the fan housing subassembly comprises damping ring (20) and fan housing (21), damping ring (20) are located outer wind channel (1) and between impeller (17) to the shock attenuation action is realized to the vibrations that impeller (17) produced, the inner wall of fan housing (21) will impeller (17) cover the back with the outer fixed surface of outer wind channel (1) cup joints.
CN202211644486.3A 2022-12-21 2022-12-21 High-rotation-speed brushless dust collector motor Active CN115733327B (en)

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CN210297359U (en) * 2019-09-06 2020-04-10 昆山祥维电子科技有限公司 Superspeed three-phase brushless axial flow fan
CN211573836U (en) * 2020-02-05 2020-09-25 苏州爱普电器有限公司 DC brushless electric fan for dust collector
CN211579812U (en) * 2020-02-27 2020-09-25 深圳市杉川机器人有限公司 Brushless dust catcher motor and dust catcher
CN113708561A (en) * 2020-05-20 2021-11-26 东莞市驰驱电机有限公司 Brushless motor and impeller thereof
CN211958986U (en) * 2020-06-05 2020-11-17 深圳飞易达电机有限公司 High-voltage brushless non-inductive high-rotating-speed motor
CN213043511U (en) * 2020-07-31 2021-04-23 深圳市力辉电机有限公司 Dry-wet dual-purpose dust collector motor structure
CN218102809U (en) * 2022-08-17 2022-12-20 苏州市勤基电子科技有限公司 Dry-wet dual-purpose brushless motor for dust collector

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