CN204967585U - A brushless DC motor for vehicle wheel hub - Google Patents
A brushless DC motor for vehicle wheel hub Download PDFInfo
- Publication number
- CN204967585U CN204967585U CN201520778499.9U CN201520778499U CN204967585U CN 204967585 U CN204967585 U CN 204967585U CN 201520778499 U CN201520778499 U CN 201520778499U CN 204967585 U CN204967585 U CN 204967585U
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- motor
- motor shaft
- iron core
- end cap
- bottom cover
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- Iron Core Of Rotating Electric Machines (AREA)
- Brushless Motors (AREA)
Abstract
The utility model discloses a brushless DC motor for vehicle wheel hub, including stator module, rotor subassembly and motor end cover subassembly, stator module includes motor shaft, iron core and winding, and the iron core is installed on the motor shaft at the epaxial parallel key of motor through setting up, and the winding setting is provided with the rotor subassembly in the outside of iron core on the tooth's socket of iron core, and the rotor subassembly includes a motor section of thick bamboo, is provided with the magnet steel in motor section of thick bamboo inboard, motor end cover subassembly including face end cover and bottom cover and respectively with the bearing that the lid cooperation of face end cover and bottom was used, motor shaft go out the bottom lid and install the hall mounting bracket on motor shaft goes out the position of bottom lid, install hall element on the hall mounting bracket, still are provided with outer end cover in the hall element outside, and end cover inboard and the corresponding position of hall element are provided with synchronous rotor outside. The utility model discloses a brushless DC motor for vehicle wheel hub, simple structure, the volume is less, and is light practical.
Description
Technical field
The utility model relates to technical field of motors, particularly a kind of brshless DC motor for vehicle hub.
Background technology
More and more higher along with automaticity, the application of motor is also more and more extensive, and especially for the motor on the vehicles, both needed enough power, self is lighter again, could reduce the deadweight of the vehicles self.Existing motor major part volume is comparatively large, conducts oneself with dignity heavier, installs on a vehicle, deadweight is increased, wastes energy, and the effect of heat radiation and damping is also not so good, affects service efficiency and the useful life of the vehicles.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of structure, small volume, the brshless DC motor for vehicle hub of light practicality.
For solving the problems of the technologies described above, the utility model provides a kind of brshless DC motor for vehicle hub, comprise stator module, rotor assembly and motor end cover component, described stator module comprises motor shaft, iron core and winding, iron core is arranged on motor shaft by the flat key be arranged on motor shaft, winding is arranged on the teeth groove of iron core, rotor assembly is had in the arranged outside of iron core, described rotor assembly comprises motor cylinder, magnet steel is provided with inside described motor cylinder, described magnet steel is positioned at outside iron core, described motor end cover component comprise face end cap and bottom cover and respectively with described end cap and bottom cover with the use of bearing, one end of described motor cylinder is provided with face end cap, described end cap is arranged on motor shaft by bearing, the other end of described motor cylinder is provided with bottom cover, described bottom cover is arranged on motor shaft by bearing, the motor shaft of described iron core one end is provided with jump ring, described motor shaft stretches out bottom cover and stretches out at described motor shaft on the position of bottom cover and is provided with Hall installing rack, described Hall installing rack is provided with Hall element, also outer end cap is provided with outside described Hall element, position corresponding with described Hall element inside described outer end cap is provided with synchronous rotor.A kind of brshless DC motor for vehicle hub of the present utility model, structure is simple, small volume, light practicality, external Hall element is adopted to commutate, long service life, good heat dissipation effect, the arranging of synchronous rotor can improve the accuracy of Hall element induction, avoids the error that position relationship brings.
Wherein, described winding comprises silicon steel sheet and enamelled wire.
As further improvement of the utility model, between described bottom cover and bearing, be provided with adjustment pad, have damping device in described bottom cover arranged outside; Between face end cap and bearing, be also provided with wave washer, the motor shaft outside the end cap of face is also provided with damping device; Radiating fin is had in the arranged outside of motor cylinder.Adjustment pad and wave washer are combined with damping device, good damping effect; External heat radiation fin can reduce the temperature of motor cylinder inside further, increases the service life, and reduces failure rate.
Electric machine structure of the present utility model, due to fairly simple, makes motor become small volume, light, the large and stupid sensation of original wheel hub motor from radical change.Although motor reduces volume, and empty load of motor rotating speed has about 1200rpm, does not change its power, performance (performance curve is shown in accompanying drawing).As a motor load 75Kg, it easily can also climb up the slope of 15 °.Because its volume is little, lightweight, after mixing solid tire, go for Self-Balancing vehicle, leisure car, traveling bicycle etc., the scope of application is extremely wide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is test data figure of the present utility model;
Wherein, 1-motor shaft, 2-iron core, 3-winding, 4-flat key, 5-motor cylinder, 6-magnet steel, 7-face end cap, 8-bottom cover, 9-bearing, 10-jump ring, 11-Hall installing rack, 12-Hall element, 13-outer end cap, 14-synchronous rotor, 15-adjusts pad, 16-damping device, 17-wave washer, 18-radiating fin.
Embodiment
Optimal technical scheme of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in the figure, a kind of brshless DC motor for vehicle hub of the present utility model, comprise stator module, rotor assembly and motor end cover component, described stator module comprises motor shaft 1, iron core 2 and winding 3, iron core 2 is arranged on motor shaft 1 by the flat key 4 be arranged on motor shaft 1, winding 3 is arranged on the teeth groove of iron core 2, rotor assembly is had in the arranged outside of iron core 2, described rotor assembly comprises motor cylinder 5, magnet steel 6 is provided with inside described motor cylinder 5, described magnet steel 6 is positioned at outside iron core 2, described motor end cover component comprise face end cap 7 and bottom cover 8 and respectively with described end cap 7 and bottom cover 8 with the use of bearing 9, one end of described motor cylinder 5 is provided with face end cap 7, described end cap 7 is held by axle 9 and is arranged on motor shaft 1, the other end of described motor cylinder 5 is provided with bottom 8 cover, described bottom cover 8 is arranged on motor shaft 1 by bearing 9, the motor shaft 1 of described iron core 2 one end is provided with jump ring 10, described motor shaft 1 stretches out bottom cover 8 and stretches out at described motor shaft 1 on the position of bottom cover 8 and is provided with Hall installing rack 11, described Hall installing rack 11 is provided with Hall element 12, outer end cap 13 is also provided with outside described Hall element 12, position corresponding with described Hall element 12 inside described outer end cap 13 is provided with synchronous rotor 14.Wherein, described winding 3 comprises silicon steel sheet and enamelled wire, is provided with and adjusts pad 15 between described bottom cover 8 and bearing 9, has damping device 16 in described bottom cover 8 arranged outside; Between face end cap 7 and bearing 9, be also provided with wave washer 17, the motor shaft 1 outside face end cap 7 is also provided with damping device 16; Radiating fin 18 is had in the arranged outside of motor cylinder 5.
A kind of brshless DC motor for vehicle hub of the present utility model, structure is simple, small volume, light practicality, external Hall element is adopted to commutate, long service life, good heat dissipation effect, the arranging of synchronous rotor can improve the accuracy of Hall element induction, avoids the error that position relationship brings.
Adjustment pad and wave washer are combined with damping device, good damping effect; External heat radiation fin can reduce the temperature of motor cylinder inside further, increases the service life, and reduces failure rate.
Motor of the present utility model is 3.5 cun of motor products, and Product Overview is as follows:
1, product environment for use:
---ambient temperature :-20 ~+550C;
---relative humidity: 15% ~ 95%;
---atmospheric pressure: 86 ~ 106Kpa.
2, product rated voltage: DC36V
3, rated power: 180W
4, product weight: 2.6Kg.
Motor performance test data are as follows:
| Voltage | Electric current | Input power | Torque | Rotating speed | Power output | Efficiency | Time | |
| Sequence number | V | A | W | N.m | rpm | W | % | S |
| 1 | 36.11 | 1.921 | 69.36 | 0.16 | 1026.5 | 17.2 | 24.8 | 0 |
| 2 | 36.1 | 2.025 | 73.12 | 0.18 | 1023.9 | 19.3 | 26.4 | 3.5 |
| 3 | 36.08 | 2.756 | 99.42 | 0.48 | 1009.8 | 50.75 | 51 | 6 |
| 4 | 36.02 | 4.581 | 165 | 1.05 | 983.8 | 107.9 | 65.4 | 8.5 |
| 5 | 36.04 | 6.618 | 238.5 | 1.91 | 943.9 | 189 | 79.2 | 11 |
| 6 | 36.04 | 9.498 | 342.3 | 2.98 | 895.6 | 279.8 | 81.8 | 13.5 |
| 7 | 36.1 | 13.31 | 480.3 | 4.3 | 849.5 | 382.8 | 79.7 | 16 |
| 8 | 36.14 | 17.26 | 623.9 | 5.74 | 797.8 | 479.1 | 76.8 | 18.5 |
| 9 | 36.15 | 22.14 | 800.2 | 7.32 | 743.9 | 570.1 | 71.3 | 21 |
| 10 | 36.15 | 26.56 | 960 | 9.31 | 640.2 | 623.9 | 65 | 23.5 |
| 11 | 36.15 | 28.48 | 1029 | 11.11 | 465.7 | 541.8 | 52.6 | 26 |
| 12 | 36.15 | 29.34 | 1060 | 13.24 | 254.5 | 352.8 | 33.3 | 28.5 |
Two end caps all adopt ZL102 aluminum, reach the object of weight reduction under the prerequisite of proof strength as far as possible.Motor shaft adopts the modifier treatment of 40Cr material, ensures its intensity.In order to increase the magnetic property of material, reducing iron loss as far as possible, adopting cold rolling 300 silicon steel sheets to carry out lifting motor performance.Enamelled wire have employed QZ-2/130 level.Utilize carbon brush to commutate relative to traditional brush motor, this motor adopts transducer (Hall element) to commutate, and relative to original brush motor, it has long service life, failure rate is low, the advantage such as non-maintaining.This motor permanent magnet (magnet steel) uses sintered NdFeB N35SH material, it mainly contains rare earth metal neodymium, metallic elements of ferrum and nonmetalloid boron (adding aluminium, cobalt, praseodymium, dysprosium, terbium, gallium etc. sometimes) sintering and forms, and its maximum operating temperature can reach 150 DEG C.Magnetic conductor (motor cylinder) adopts 10# mild steel, utilizes the magnetic property that it is good.
Motor rotation principle: this motor have employed 12 teeth, 8 pairs of electrode structures, when the enamelled wire energising in motor, can produce magnetic field, the magnetic line of force of the magnetic field intercepts permanent magnet of generation, just creates power, and this power is rotated with regard to drive motors cylinder.When motor cylinder turns over an angle, permanent magnet (magnet steel) polarity changes, trigger Hall components and parts signal, lure that Hall components and parts are opened or shutdown signal switch into, electric current in three-phase windings is changed, the moment that cutting permanent magnet (magnet steel) magnetic line of force is produced remains consistent, and motor is rotated to a direction all the time.
Electric machine structure of the present utility model, due to fairly simple, makes motor become small volume, light, the large and stupid sensation of original wheel hub motor from radical change.Although motor reduces volume, and empty load of motor rotating speed has about 1200rpm, does not change its power, performance (performance curve is shown in accompanying drawing).As a motor load 75Kg, it easily can also climb up the slope of 15 °.Because its volume is little, lightweight, after mixing solid tire, go for Self-Balancing vehicle, leisure car, traveling bicycle etc., the scope of application is extremely wide.
Claims (5)
1. the brshless DC motor for vehicle hub, it is characterized in that: comprise stator module, rotor assembly and motor end cover component, described stator module comprises motor shaft, iron core and winding, iron core is arranged on motor shaft by the flat key be arranged on motor shaft, winding is arranged on the teeth groove of iron core, rotor assembly is had in the arranged outside of iron core, described rotor assembly comprises motor cylinder, magnet steel is provided with inside described motor cylinder, described magnet steel is positioned at outside iron core, described motor end cover component comprise face end cap and bottom cover and respectively with described end cap and bottom cover with the use of bearing, one end of described motor cylinder is provided with face end cap, described end cap is arranged on motor shaft by bearing, the other end of described motor cylinder is provided with bottom cover, described bottom cover is arranged on motor shaft by bearing, the motor shaft of described iron core one end is provided with jump ring, described motor shaft stretches out bottom cover and stretches out at described motor shaft on the position of bottom cover and is provided with Hall installing rack, described Hall installing rack is provided with Hall element, also outer end cap is provided with outside described Hall element, position corresponding with described Hall element inside described outer end cap is provided with synchronous rotor.
2. a kind of brshless DC motor for vehicle hub as claimed in claim 1, is characterized in that: described winding comprises silicon steel sheet and enamelled wire.
3. a kind of brshless DC motor for vehicle hub as claimed in claim 1, is characterized in that: between described bottom cover and bearing, be provided with adjustment pad having damping device in described bottom cover arranged outside.
4. a kind of brshless DC motor for vehicle hub as described in claim 1 or 2 or 3, is characterized in that: between face end cap and bearing, be also provided with wave washer, the motor shaft outside the end cap of face is also provided with damping device.
5. a kind of brshless DC motor for vehicle hub as claimed in claim 4, is characterized in that: have radiating fin in the arranged outside of motor cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778499.9U CN204967585U (en) | 2015-10-09 | 2015-10-09 | A brushless DC motor for vehicle wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778499.9U CN204967585U (en) | 2015-10-09 | 2015-10-09 | A brushless DC motor for vehicle wheel hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967585U true CN204967585U (en) | 2016-01-13 |
Family
ID=55062625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520778499.9U Expired - Fee Related CN204967585U (en) | 2015-10-09 | 2015-10-09 | A brushless DC motor for vehicle wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204967585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10205365B2 (en) | 2016-03-30 | 2019-02-12 | Milwaukee Electric Tool Corporation | Brushless motor for a power tool |
-
2015
- 2015-10-09 CN CN201520778499.9U patent/CN204967585U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10205365B2 (en) | 2016-03-30 | 2019-02-12 | Milwaukee Electric Tool Corporation | Brushless motor for a power tool |
| US10432065B2 (en) | 2016-03-30 | 2019-10-01 | Milwaukee Electric Tool Corporation | Brushless motor for a power tool |
| US10673305B2 (en) | 2016-03-30 | 2020-06-02 | Milwaukee Electric Tool Corporation | Brushless motor for a power tool |
| US10931167B2 (en) | 2016-03-30 | 2021-02-23 | Milwaukee Electric Tool Corporation | Brushless motor for a power tool |
| US11496022B2 (en) | 2016-03-30 | 2022-11-08 | Milwaukee Electric Tool Corporation | Brushless motor for a power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20181009 |