CN206452220U - Self-cooling brushless electric machine - Google Patents
Self-cooling brushless electric machine Download PDFInfo
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- CN206452220U CN206452220U CN201720076734.7U CN201720076734U CN206452220U CN 206452220 U CN206452220 U CN 206452220U CN 201720076734 U CN201720076734 U CN 201720076734U CN 206452220 U CN206452220 U CN 206452220U
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- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 239000003433 contraceptive agent Substances 0.000 claims description 3
- 230000002254 contraceptive effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides a kind of Self-cooling brushless electric machine, including stator module, the mover assembly with stator module relative motion；Mover assembly includes upper lid, and upper cover includes upper shell, lower house, is arranged on adjutage that upper shell extends radially outwardly along upper shell and the axially extending arc support based on adjutage along upper shell；Arc support is connected between adjutage and lower house, and the air slot of fan type structure is formed between arc support.Even if can be exported the hot-air of motor internal by the air slot of fan type structure using above-mentioned utility model, so as to reach the effect of quick, effective reduction motor internal temperature.
Description
Technical Field
The utility model relates to the technical field of motors, more specifically relates to a can be when operation spontaneous radiating self-cooling type brushless motor.
Background
With the development of permanent magnet materials, microelectronic technology, control technology and electromagnetic electronic technology, brushless motors have been developed and widely used. And with the progress of technology and technology, the barriers once besetting the brushless motor industry are broken gradually. The brushless motor has the advantages of reliable performance, no mechanical wear, low failure rate, small volume, high efficiency and the like, so that the application field of the brushless motor is changed from the original military field to the commercial field, and the application field of the brushless motor is rapidly expanded from the industrial field to the civil field.
The existing brushless motor mainly comprises an upper cover, magnetic steel, a rotor part consisting of a plurality of magnets uniformly distributed on the inner surface of the magnetic steel and a shaft for rotating, and a stator part consisting of a base, a coil framework arranged on the base and a plurality of coils wound on the coil framework. The rotor makes circular motion around the stator through the rotation axis, and the motor base all is equipped with partial hole site on covering for the motor heat dissipation.
However, in the existing brushless motor, only a small number of heat dissipation holes on the upper cover and the base are used for heat dissipation, which is not enough to completely dissipate heat generated during the operation of the motor, and waste heat is accumulated in the motor, which causes the motor to generate heat; especially when the motor is in heavy load operation, heat is difficult to dispel in the short time, not only can lead to the motor loss to increase, and efficiency reduces, still can aggravate the wearing and tearing of bearing, reduces motor life. Meanwhile, the motor can be scrapped due to overhigh internal temperature, and huge potential safety hazards exist.
Therefore, there is a need to provide a new brushless motor to overcome the above-mentioned heat dissipation difficulty.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a self-cooling brushless motor to solve present brushless motor when operation the inside heat can not in time discharge the motor loss that causes serious, inefficiency, short service life scheduling problem.
The utility model provides a self-cooling brushless motor, which comprises a stator component and a rotor component moving relative to the stator component; the rotor assembly comprises an upper cover, the upper cover comprises an upper shell, a lower shell, an extension arm and an arc-shaped support, the extension arm is arranged on the upper shell and extends outwards along the radial direction of the upper shell, and the arc-shaped support extends along the axial direction of the upper shell based on the extension arm; the arc-shaped support is connected between the extension arm and the lower shell, and an air guide groove of a fan-shaped structure is formed between the arc-shaped supports.
In addition, the preferred scheme is that the upper shell and the lower shell are both of circular structures, and the extension arms are uniformly distributed on the side wall of the upper shell; and the maximum outer diameter value of the extension arm is not more than that of the lower shell.
Further, it is preferable that the shape of the extension arm is an involute curve type.
In addition, the preferred scheme is that the arc-shaped support is in an arc-shaped triangular support structure.
In addition, it is preferable that the number of the arc brackets is not more than the number of the extension arms.
In addition, the preferable scheme is that the stator assembly comprises a base, a coil framework fixed on the base and a coil wound on the coil framework; the base is including the bottom plate that is provided with the bleeder vent, fitting with a contraceptive ring, setting at the bottom plate and the support column of fitting with a contraceptive ring between, forms evenly distributed's ventilative groove between the support column.
In addition, the preferable scheme is that the rotor assembly further comprises a rotary assembly arranged between the stator assembly and the rotor assembly; the rotary component comprises a rotating shaft and two bearings matched with the rotating shaft, and the two bearings are respectively fixed in the rotating shaft and the base.
In addition, it is preferable that a support column having a hollow structure extending in an axial direction of the upper housing is provided at a rotation center position of the upper cover, and the rotation shaft is vertically fixed in the support column.
In addition, preferably, the stator assembly further comprises a circuit board; wherein, a fixing part for fixing the coil framework and the circuit board is arranged on the bottom plate; the fixing part is a hollow trapezoidal structure and comprises a lower fixing part, a middle fixing part and an upper fixing part which are sequentially arranged from bottom to top.
In addition, preferably, the mover assembly further includes a magnetic circuit system fixedly connected to the upper cover; the magnetic circuit system comprises a magnetic yoke fixedly connected with the upper cover and magnets uniformly attached to the inner surface of the magnetic yoke.
Utilize above-mentioned from cold type brushless motor, the last casing of upper cover and set up the non-sealed exhaust structure of fan type down between the casing, at the motor operation in-process, the air guide groove between the accessible arc support in time gets rid of the heat of the inside production of motor to inside the cold air with outside in time leading-in motor, can realize the quick cooling of motor, product property can stabilize, long service life.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a schematic view of an overall structure of a self-cooling brushless motor according to an embodiment of the present invention;
fig. 2 is an exploded view of a self-cooling brushless motor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an upper cover of a self-cooling brushless motor according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base of a self-cooling brushless motor according to an embodiment of the present invention.
Wherein the reference numerals include: the self-cooling brushless motor 10, the stator assembly 1, the base 11, the bottom plate 111, the support ribs 112, the upper ring 113, the ventilation groove 114, the ventilation hole 115, the screw hole 116, the fixing portion 117, the lower fixing portion 1171, the middle fixing portion 1172, the upper fixing portion 1173, the upper mounting groove 1174, the coil bobbin 12, the bobbin main body 121, the bobbin through hole 1211, the circuit board 13, the circuit board through hole 131, the wire passing hole 132, the slot 133, the mover assembly 2, the upper cover 21, the upper housing 210, the extension arm 211, the arc bracket 212, the air guiding groove 213, the detent 214, the detent 215, the lower housing 216, the support post 217, the upper support post 2171, the screw hole 2172, the lower support post 2173, the through hole 218, the screw hole 219, the magnetic conductive yoke 22, the magnetic conductive yoke upper edge 221, the magnetic conductive yoke inner surface 222, the magnet 23, the rotating shaft.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
The utility model provides a self-cooling brushless motor for provide flight power with screw collocation back for other flight device, including stator module and can carry out relative pivoted active cell subassembly and connect the gyration subassembly between active cell subassembly and stator module around stator module. The stator assembly comprises a base, a coil framework arranged on the base and a plurality of coils wound on the coil framework, and the rotor assembly comprises an upper cover, a magnetic conducting yoke and a plurality of magnets uniformly distributed on the inner surface of the magnetic conducting yoke; the rotor assembly is sleeved on the stator assembly and comprises a rotating shaft and two bearings sleeved at two ends of the rotating shaft, and the rotor assembly and the stator assembly rotate relative to each other through the rotating assembly.
For the purpose of describing the structure of the self-cooling brushless motor according to the embodiment of the present invention in detail, the following description will be made in detail with reference to the accompanying drawings.
Fig. 1 and 2 show the overall structure and the exploded structure of a self-cooling brushless motor according to an embodiment of the present invention from different angles, respectively.
As shown in fig. 1 and fig. 2 together, the self-cooling brushless motor 10 according to the embodiment of the present invention includes a stator assembly 1 and a mover assembly 2 that performs relative motion with the stator assembly 1; the mover assembly 2 further includes an upper cover 21, and the upper cover 21 includes an upper case 210, a lower case 216, an extension arm 211 provided at the upper case 210 to extend radially outward of the upper case 210, and an arc support 212 extending in an axial direction of the upper case 210 based on the extension arm 211; the arc bracket 212 is connected between the extension arm 211 and the lower housing 216, and the plurality of arc brackets 212 distributed at intervals form an air guide groove 213 of a fan-shaped structure.
The upper housing 210 and the lower housing 216 are both of a circular structure, the size of the upper housing 210 is not larger than that of the lower housing 216, a plurality of extension arms 211 of a curve structure are uniformly arranged on the sidewall of the upper housing 210 along the radial direction, and the maximum outer diameter value of each extension arm 211 is not larger than that of the lower housing 216.
For the exhaust effect who improves the air guide groove, realize brushless motor's quick self-cooling the utility model discloses an among the embodiment, the shape of extension arm 211 sets up the curvilinear figure structure into approximate involute shape, and then the arc support 212 of following casing 210 axial downwardly extending on extension arm 211's basis adopts approximate arc triangular supports's structure, and the interval between the arc support 212 of arbitrary two adjacent settings equals and forms an air guide groove 213 jointly, and evenly distributed's arc support 212 and extension 211 can ensure the stress balance of motor operation in-process, reach the reliable and stable effect of product.
The utility model discloses an upper cover fan type structure sets up to when two respectively at the quantity of its extension arm 211 and arc support 212, can produce the self-cooling effect as described above, nevertheless can be better in order to make the ventilation performance of upper cover, can cover the quantity that increases extension arm 211 and arc support 212 on for the motor reaches better cooling effect when the operation, like in the scheme that fig. 1 to 2 show, evenly be provided with eight extension arms 211 and eight arc supports 212 that correspond on the last casing 210 of upper cover 21.
It should be noted that, in actual production or application, the scheme of the equivalent amount of the extension arm 211 and the arc support 212 (for example, the number of the extension arm and the arc support is set to 2, 3, 4, etc.) can be adopted according to the situation, or the scheme that the number of the extension arm 211 is different from the number of the arc support 212 (for example, the number of the extension arm is set to 4, the number of the arc support is 2, or the number of the extension arm is 12, and the number of the arc support is 4, etc.) is adopted, it is all right to ensure that the number of the arc support 212 is not greater than the number of the extension arm 211, and similar schemes are all regarded as.
In another embodiment of the present invention, the self-cooling brushless motor 10 further includes a rotating assembly disposed between the stator assembly 1 and the mover assembly 2; the stator assembly 1 comprises a base 11, a coil frame 12 fixed on the base 11, and a coil (not shown in the figure) wound on the coil frame 12, wherein the coil frame 12 comprises a frame main body 121 and a frame through hole 1211 located at the center of the frame main body 121, the base 11 further comprises a bottom plate 111 provided with air holes 115, an upper ring 113, and support ribs 112 arranged between the bottom plate 111 and the upper ring 113, and air-permeable grooves 114 uniformly distributed are formed between the support ribs 112; the rotating assembly includes a rotating shaft 31 and two bearings 32 and 33 adapted to the rotating shaft 31, and the two bearings 32 and 33 are respectively fixed in the rotating shaft 31 and the base 11.
Furthermore, the stator assembly 1 further comprises a circuit board 13; the bottom plate 111 is provided with a fixing portion 117 for fixing the coil bobbin 12 and the circuit board 13, and the fixing portion 117 is a hollow trapezoid structure and includes a lower fixing portion 1171, a middle fixing portion 1172, and an upper fixing portion 1173, which are sequentially arranged from bottom to top. The mover assembly 2 further includes a magnetic circuit system fixedly connected with the upper cover 21; the magnetic circuit system comprises a magnetic yoke 22 fixedly connected with the upper cover 21 and a plurality of magnets 23 uniformly attached to the inner surface of the magnetic yoke 22.
Specifically, fig. 3 shows an upper cover structure of a self-cooling brushless motor according to an embodiment of the present invention.
Referring to fig. 1 to 3 together, the embodiment of the present invention provides an upper cover 21 of a self-cooling brushless motor 10, including an upper housing 210, a plurality of extension arms 211 extending outward from the radial direction of the upper housing 210 based on the upper housing 210, an arc support 212 extending along the axial direction of the upper housing 210 based on the extension arms 211, a lower housing 216 located at the lower side of the upper housing 210 and connected to the arc support 212, and an air guide groove 213 forming an evenly distributed fan-shaped structure between the upper housing 210, the extension arms 211, the arc support 212 and the lower housing 216.
The supporting column 217 of the hollow structure extending along two axial sides of the upper housing 210 is disposed at the rotation center of the upper housing 210, the supporting column 217 includes an upper supporting column 2171 extending upward, a lower supporting column 2173 extending downward, and a screw hole 2172 located on the lower supporting column 2173, the upper supporting column 2171, the lower supporting column 2173, and a through hole 218 located in the middle of the supporting column 217 are used for installing a rotation component, and the three cooperate to ensure the perpendicularity of the rotation component relative to the upper housing 210.
In addition, two screw holes 2172 which are oppositely opened and used for fastening the rotation component are arranged on the lower supporting column 2173, and a plurality of screw holes 219 are distributed on the upper shell 210 and used for installing loads. A plurality of clamping positions 214 are uniformly distributed below the lower casing 216 along one side away from the lower casing 216, clamping grooves 215 are uniformly distributed among the clamping positions 214, the number of the clamping positions is equal to that of the clamping positions, the magnetic yoke 22 is fixed with the upper cover 21 through the lower casing 216, and the magnet 23 is fixedly connected with the upper cover 21 and the magnetic yoke 22 through the clamping grooves 215, so that a complete rotor assembly 2 is finally formed together.
The utility model discloses in brushless motor's the course of operation, mover assembly 2 is high-speed rotatory, and extension arm 211 and arc support 212 that are located on upper cover 21 are also high-speed rotatory, when controlling it to rotate for counter clockwise (depend on the shown direction in the figure for referring to), through the fan type structure of its extension arm 211 and arc support 212, can be quick take out the hot-air of inside production rapidly. Meanwhile, as the base 11 is provided with the plurality of ventilation grooves 114, when hot air is pumped out, cold air can be continuously supplemented to the inside of the motor, so that the hot air and the cold air can be continuously exchanged inside and outside the motor, and the air conversion speed is higher when the motor running speed is higher, thereby effectively reducing the temperature of the motor during running and realizing self-cooling of the brushless motor.
In a similar way, when controlling it to revolve to for clockwise rotation (depend on the direction that shows in the figure for referring to), through the fan type structure of its extension arm 211 and arc support 212, can inhale cold air from the external world fast, after the inside circulation of motor, escape in the numerous ventilative groove 114 on the base 11, can make hot air and cold air constantly exchange outside the motor equally, and when motor functioning speed is big more, air switching speed is fast more, thereby reach the effect that effectively reduces motor operation temperature, realize brushless motor's self-cooling.
Fig. 4 shows a base structure of a self-cooling brushless motor according to an embodiment of the present invention.
Combine fig. 1 to fig. 4 to show jointly, the utility model discloses a self-cooling brushless motor 10 includes base 11, is fixed in coil skeleton 12 on the base 11, and a plurality of coils of winding on coil skeleton 12 are connected with base 11 and insert base 11 centre of gyration's gyration subassembly (including pivot 31, bearing 32 and bearing 33), and are fixed mutually with pivot 31, realize through pivot 31 that relative stator module 1 is circular motion's active cell subassembly 2 and be fixed in on the base 11 and be used for wiring and control action's circuit board 13. The Circuit Board 13 may be a Printed Circuit Board (PCB), among others. The mover assembly 2 includes an upper cover 21, a magnetic yoke 22, and a plurality of magnets 23 fixed on an inner surface 221 of the magnetic yoke and fixedly connected to the upper cover 21; the upper edge 221 of the magnetic yoke is fixedly connected to the upper cover 21, and in the embodiment shown in fig. 2, a total of 14 magnets 23 are disposed on the inner surface of the magnetic yoke 22.
Specifically, the base 11 further includes a bottom plate 111, a plurality of support ribs 112 extending upward around the bottom plate 111, and an upper ring 113 located above the bottom plate 111 and connected to the bottom plate 111 through the support ribs 112. A ventilation groove 114 is formed between the bottom plate 111 and the upper ring 113, and the support ribs 112 are separated from each other by the ventilation groove 114; in addition, a plurality of air holes 115 are formed in the bottom plate 111, and sufficient air circulation can be ensured to the maximum extent when the motor runs through the air holes 115 and the air holes 114; a fixing portion 117 for fixing the bobbin 12 and the circuit board 13 is further disposed above the bottom plate 111, and the fixing portion 117 is a hollow structure, and has a stepped structure at an outer side thereof, which includes a lower fixing portion 1171, a middle fixing portion 1172, and an upper fixing portion 1173 from bottom to top.
Wherein, the lower fixing portion 1171 and the middle fixing portion 1172 are used for positioning and fixing the circuit board 13; the middle fixing portion 1172 and the upper fixing portion 1173 are used for positioning and fixing the bobbin 12, and upper and lower mounting grooves 1174 and lower mounting grooves (not shown in the drawing) for mounting the bearings 32 and 33 are provided above and below the inside thereof, respectively. The bottom plate 111 is further provided with 4 screw holes 116 for fixing the whole motor.
In addition, the circuit board 13 is used for coil wiring and control outgoing of the motor, a circuit board through hole 131 is arranged at the middle position of the circuit board 13, and the circuit board 13 is positioned and mounted with the middle fixing part 1172 on the base 11 through the circuit board through hole 131, so that the circuit board 13 is fixed on the base 11. In addition, the circuit board 13 is also provided with a plurality of wire holes 132 for the coil of the motor and the bonding wires during wire outgoing. In addition, a plurality of groove positions 133 are further arranged at the edge of the circuit board 13, and when the circuit board 13 is installed, the groove positions 133 can play a role in avoiding space and assisting in positioning the support ribs 112.
In addition, the revolving assembly includes a rotating shaft 31, a bearing 32 sleeved on the rotating shaft 31 and fixed on the base 11 through a mounting groove 1174, and a bearing 33 also sleeved on the rotating shaft 31 and fixed on the base 11 through a mounting groove (not shown) below the fixing portion 117, and a limiting ring 34 for limiting the rotating shaft 31 is further provided below the bearing 33, and the revolving assembly is ensured to stably rotate relative to the stator assembly 1 through the combined action of the rotating shaft 31, the bearing 32, the bearing 33 and the limiting ring 34.
According to the above embodiment, the utility model provides a from cold type brushless motor covers arc support and the extension arm that sets up fan type structure on last, rotates the in-process at the active cell subassembly, mutually supports of ventilative groove on accessible fan type structure and the base, in time discharges the inside steam that produces of motor to inside in time leading-in motor with cold air, thereby reach quick, effectively reduce the effect of the inside temperature of motor, quick self-cooling, stable performance is reliable and stable.
The self-cooling type brushless motor according to the present invention is described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications may be made to the self-cooling brushless motor provided in the present invention without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (10)
1. A self-cooling brushless motor comprises a stator assembly and a rotor assembly moving relative to the stator assembly; it is characterized in that the preparation method is characterized in that,
the rotor assembly comprises an upper cover, the upper cover comprises an upper shell, a lower shell, an extension arm and an arc-shaped support, the extension arm is arranged on the upper shell and extends outwards along the radial direction of the upper shell, and the arc-shaped support extends along the axial direction of the upper shell based on the extension arm;
the arc-shaped support is connected between the extension arm and the lower shell, and an air guide groove of a fan-shaped structure is formed between the arc-shaped supports.
2. The self-cooling brushless motor according to claim 1,
the upper shell and the lower shell are both of circular structures, and the extension arms are uniformly distributed on the side wall of the upper shell; and,
the maximum outer diameter value of the extension arm is not larger than that of the lower shell.
3. The self-cooling brushless motor according to claim 1,
the shape of the extension arm is an involute curve.
4. The self-cooling brushless motor according to claim 1,
the arc-shaped support is of an arc-shaped triangular support structure.
5. The self-cooling brushless motor according to claim 1,
the number of the arc-shaped supports is not more than that of the extension arms.
6. The self-cooling brushless motor of claim 1, wherein the stator assembly comprises a base, a bobbin fixed to the base, a coil wound around the bobbin;
the base is including the bottom plate that is provided with the bleeder vent, go up a contraceptive ring, set up the bottom plate with support column between the last ring, form evenly distributed's ventilative groove between the support column.
7. The self-cooling brushless motor of claim 6, further comprising a gyration assembly disposed between the stator assembly and the mover assembly;
the rotary component comprises a rotating shaft and two bearings matched with the rotating shaft, and the two bearings are fixed in the rotating shaft and the base respectively.
8. The self-cooling brushless motor according to claim 7,
a support column with a hollow structure extending along the axial direction of the upper shell is arranged at the position of the rotation center of the upper cover, and the rotating shaft is vertically fixed in the support column.
9. The self-cooling brushless motor of claim 6, wherein the stator assembly further comprises a circuit board; wherein,
the bottom plate is provided with a fixing part for fixing the coil framework and the circuit board;
the fixing part is of a hollow trapezoidal structure and comprises a lower fixing part, a middle fixing part and an upper fixing part which are sequentially arranged from bottom to top.
10. The self-cooling brushless motor according to claim 1,
the rotor assembly further comprises a magnetic circuit system fixedly connected with the upper cover;
the magnetic circuit system comprises a magnetic yoke fixedly connected with the upper cover and magnets uniformly attached to the inner surface of the magnetic yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076734.7U CN206452220U (en) | 2017-01-20 | 2017-01-20 | Self-cooling brushless electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076734.7U CN206452220U (en) | 2017-01-20 | 2017-01-20 | Self-cooling brushless electric machine |
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| Publication Number | Publication Date |
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| CN206452220U true CN206452220U (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720076734.7U Active CN206452220U (en) | 2017-01-20 | 2017-01-20 | Self-cooling brushless electric machine |
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| CN (1) | CN206452220U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787367A (en) * | 2017-01-20 | 2017-05-31 | 歌尔股份有限公司 | Self-cooling brushless electric machine |
| CN110296651A (en) * | 2019-06-27 | 2019-10-01 | 周凯 | A kind of three coordinate measurement machine of Miniature precision and its control method |
| CN110915109A (en) * | 2018-09-28 | 2020-03-24 | 深圳市大疆软件科技有限公司 | Diaphragm pump motor and diaphragm pump |
| WO2022110360A1 (en) * | 2020-11-27 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Brushless electric motor |
| WO2024061103A1 (en) * | 2022-09-23 | 2024-03-28 | 亿航智能设备（广州）有限公司 | Brushless direct-current electric motor |
-
2017
- 2017-01-20 CN CN201720076734.7U patent/CN206452220U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787367A (en) * | 2017-01-20 | 2017-05-31 | 歌尔股份有限公司 | Self-cooling brushless electric machine |
| CN110915109A (en) * | 2018-09-28 | 2020-03-24 | 深圳市大疆软件科技有限公司 | Diaphragm pump motor and diaphragm pump |
| CN110296651A (en) * | 2019-06-27 | 2019-10-01 | 周凯 | A kind of three coordinate measurement machine of Miniature precision and its control method |
| WO2022110360A1 (en) * | 2020-11-27 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Brushless electric motor |
| WO2024061103A1 (en) * | 2022-09-23 | 2024-03-28 | 亿航智能设备（广州）有限公司 | Brushless direct-current electric motor |
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