CN105978237B - External rotor electric machine and electric vehicle - Google Patents
External rotor electric machine and electric vehicle Download PDFInfo
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- CN105978237B CN105978237B CN201610442113.6A CN201610442113A CN105978237B CN 105978237 B CN105978237 B CN 105978237B CN 201610442113 A CN201610442113 A CN 201610442113A CN 105978237 B CN105978237 B CN 105978237B
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- hall
- motor shaft
- electric machine
- external rotor
- end cap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention provides a kind of external rotor electric machine and electric vehicles, the external rotor electric machine includes: outer rotor component, stator module, motor shaft and Hall subassembly, outer rotor component and stator module are assemblied on motor shaft, wherein, stator module is located in the cavity of outer rotor component wheel hub, Hall subassembly is mounted on motor shaft, and is located at and is mounted in the magnet ring on outer rotor component end cap, for detecting the magnetic field of magnet ring.In the technical solution, by using the mounting means for separating Hall subassembly with stator module, Hall subassembly can be repaired without taking out stator module from the inside of external rotor electric machine, reduce the maintenance difficulty of Hall subassembly, improve the maintenance efficiency of outer rotor component, and also efficiently avoiding stator module, temperature is excessively high and the case where burn out Hall subassembly during the work time, to improve the service life of Hall subassembly.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of external rotor electric machine and including the external rotor electric machine
Electric vehicle.
Background technique
Currently, market external rotor electric machine mainly utilize Hall element detect rotor-position, wherein existing outer rotor
The Hall element of motor is mounted in the tooth or slot of the stator module inside motor, such mounting means, once due to suddenly
Your component wear and when generating failure, it is necessary to electric motor end cap is opened, stator module is taken out, then to the Hall on stator module
Element repairs, and the maintenance process is cumbersome, brings inconvenience to maintenance work, reduces maintenance efficiency, simultaneously because often
The problem of disassembly may occur outer rotor component and stator module friction, motor leak and not can guarantee concentricity.In addition,
Hall element is directly installed on stator module, the heating of stator module can damage Hall element.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of external rotor electric machines.
It is another object of the present invention to provide a kind of electric vehicles including above-mentioned external rotor electric machine.
To achieve the goals above, the embodiment of first aspect present invention provides a kind of external rotor electric machine, comprising: outer to turn
Sub-component is mounted in the end cap of the open end of the wheel hub including wheel hub, lid with cavity and is mounted on the end cap
Magnet ring, wherein be provided with the first mounting hole on the wheel hub wall opposite with the end cap, the second peace is provided on the end cap
Fill hole；Stator module is located in the cavity, and the stator module includes the stator core with iron core through-hole；Motor shaft, point
Do not cooperate with first mounting hole, the iron core through-hole and second mounting hole, so that the outer rotor component and described
Stator module is assembled with the motor shaft respectively；Hall subassembly is mounted on the motor shaft, and the outside of the Hall subassembly
It is arranged with the magnet ring, the Hall subassembly is used to detect the magnetic field of the magnet ring.
The external rotor electric machine that the embodiment of first aspect present invention provides, Hall subassembly are fixedly mounted on motor shaft, and
In the magnet ring on end cap, it may be assumed that use the mounting means that Hall subassembly is separated with stator module, a side in the technical solution
Face, so that the Hall subassembly far from stator module, avoids the stator module temperature when external rotor electric machine works excessively high to Hall group
Part is hurtful to be happened, and the service life of Hall subassembly is improved, and improve external rotor electric machine using safe
Property；On the other hand, when repairing to Hall subassembly, it is not necessary that stator module taking-up can be repaired, Hall subassembly is reduced
Maintenance difficulty, improve maintenance efficiency and repair quality.
Wherein, the working principle of the external rotor electric machine are as follows: when external rotor electric machine work, outer rotor component rotation, also
To say, the magnet ring on wheel hub, end cap and end cap rotates together, and Hall subassembly be fixed on it is stationary on motor shaft, with induction
The position of magnet ring, it may be assumed that the Magnetic Field of magnet ring is detected, then will test the controller that information is transferred to external rotor electric machine, it should
The signal control external rotor electric machine work that controller is detected according to Hall subassembly.
It is worth noting that the number of pole-pairs of magnet ring is equal to the number of pole-pairs of external rotor electric machine.
In addition, the external rotor electric machine in above-described embodiment provided by the invention can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that be provided with mounting groove on the outer end of the end cap, set in the mounting groove
It is equipped with the magnet ring and the Hall subassembly, wherein the magnet ring is fixedly connected in the mounting groove, and the mounting groove
Slot bottom is provided with second mounting hole through the end cap, and the motor shaft partially passes through second mounting hole and institute
Hall subassembly is stated to be fixedly connected.
In the technical scheme, by the way that Hall subassembly to be arranged in the mounting groove of end cap outer end, on the one hand, so that should
Hall subassembly avoids stator module temperature is excessively high when external rotor electric machine works from damaging to Hall subassembly far from stator module
The case where occur, improve the service life of Hall subassembly, and improve the safety in utilization of external rotor electric machine；Another party
Face, without repairing end cap opening, reduces the maintenance difficulty of Hall subassembly, letter when repairing to Hall subassembly
Dismounting step is changed, and has improved maintenance efficiency and repair quality, also, has avoided and lead to outer rotor group due to often dismantling
Part and stator module friction, motor leak and the problem of not can guarantee concentricity.
In any of the above-described technical solution, it is preferable that be provided with boss on the outer end of the end cap, set on the boss
It is equipped with the mounting groove, wherein the boss is that integral type is connect with the end cap.
In the technical scheme, by the way that boss is arranged in the outer end of end cap, then Hall subassembly and magnet ring are mounted on
It in the mounting groove of the boss, on the one hand avoids directly opening up mounting groove on end cap, effectively improves the structural strength of end cap, thus
The service life of end cap is improved, on the other hand, increases operating space, it is convenient that Hall subassembly and magnet ring are dismounted, it improves
Disassembly efficiency, and reduce dismounting difficulty, wherein the boss is connect with end cap integral type, effectively increase bonding strength, with
And the service life of end cap is improved, and the boss is integrally formed with end cap, can be convenient and is produced in batches, improve production effect
Rate.
In any of the above-described technical solution, it is preferable that the Hall subassembly include bracket, Hall circuit board and with it is described suddenly
The Hall sensor of your wiring board connection, the Hall sensor and the Hall circuit board are installed on the bracket, and institute
It states bracket and the motor shaft cooperates, so that the Hall subassembly is mounted on the motor shaft.
In the technical scheme, cooperated by bracket and motor shaft and Hall circuit board and Hall sensor are fixed on motor
On axis, the mounting means of Hall subassembly and motor shaft is not only simplified, reduces installation difficulty, and also improve Hall subassembly
With the mounting stability of motor shaft.
In the above-mentioned technical solutions, it is preferable that the bracket includes positioning region and one end that the positioning region is arranged in
The cross-sectional width of mounting portion, the mounting portion is greater than the cross-sectional width of the positioning region, and is equipped on the mounting portion described
Hall circuit board and the Hall sensor, wherein the bracket is provided with the dress through the positioning region and the mounting portion
With through-hole, the bracket is by circlip and the motor shaft engagement sleeves on the motor shaft.
In the technical scheme, it is secured the stand on motor shaft by circlip, the peace that bracket can not only be made firm
On motor shaft, but also it is effectively simplified the mounting means of bracket and motor shaft, improves installation effectiveness, saved the time
Cost, and it is convenient for disassembly and assembly, it is easy to repair.
Wherein, it is worth noting that, which is that integral type is connect with mounting portion, it may be assumed that bracket integral molded plastic molding,
The structural strength for effectively increasing bracket improves the service life of bracket.
In any of the above-described technical solution, it is preferable that further include: oil sealing is sleeved on the positioning region, and with the peace
Tankage interference fit, to be mounted on the open end of the mounting groove, for by described on the magnet ring and the mounting portion suddenly
That wiring board and the Hall sensor are encapsulated in the mounting groove.
In the technical scheme, oil sealing is fitted to the open end of mounting groove by the positioning region and mounting groove with bracket
Place, magnet ring, Hall circuit board and Hall sensor are sealed in mounting groove, and magnet ring, Hall circuit board and Hall is avoided to pass
Sensor contacts the case where being damaged with the external world, improves the service life of Hall subassembly and magnet ring, also, due to the structure of oil sealing
Simply, and easily it manufactures, so being sealed by using oil sealing to mounting groove, not only effectively to the Hall group in mounting groove
Part and magnet ring are protected, and also reduce installation difficulty, and reduce production cost, and the oil sealing is convenient for disassembly and assembly,
Convenient for being repaired to internal magnet ring, Hall circuit board and Hall sensor.
In the above-mentioned technical solutions, it is preferable that further include: controller；And electric wire, it is fixed on the motor shaft, and
It is electrically connected with the controller, and is provided with first lead on the electric wire, on the Hall circuit board of the Hall subassembly
It is provided with the second lead being electrically connected with the first lead.
In the technical scheme, by electric wire be electrically connected with the controller and Hall circuit board on the second lead and electricity
First lead connection on line, realizes being electrically connected for Hall subassembly and controller, wherein when external rotor electric machine work, outside
Rotor assembly rotation, that is to say, that the magnet ring on wheel hub, end cap and end cap rotates together, and Hall subassembly is fixed on motor shaft
It is upper stationary, with the position of reaction magnetic ring, it may be assumed that detect the Magnetic Field of magnet ring, then will test information and be transferred to control
Device, the signal control external rotor electric machine that controller is detected according to Hall subassembly work.
It is worth noting that the electric wire is higher temperature line.
In any of the above-described technical solution, it is preferable that a upper setting in the first lead and second lead
There is plug, slot, the slot and the plug grafting is provided on another, so that the first lead is drawn with described second
Line electrical connection.
In the technical scheme, by the grafting of slot and plug, the fast of first lead and the second lead is not only realized
Speed connection, it is time saving and energy saving, and also improve the connective stability of first lead and the second lead.
In any of the above-described technical solution, it is preferable that be provided with threading hole on the positioning region of the bracket, it is described suddenly
Second lead on your wiring board passes through the threading hole and is electrically connected with the first lead.
In the technical scheme, by the way that threading hole is arranged on the positioning region of bracket, not only act as regular and fixes second
The effect of lead, but also effectively avoid the second lead is naked from being exposed on the external there is a situation where breakage and then cause to endanger, effectively mention
The high service life and safety in utilization of Hall subassembly.
It is worth noting that being set with waterproof plug on second lead, and it is interference fitted with threading hole, it in this way can be effective
The case where avoiding liquid runs down threading hole from flowing on Hall circuit board, Hall circuit board is caused to burn out, further increases suddenly
The service life of your component.
The embodiment of second aspect of the present invention provides described in any one of a kind of electric vehicle, including first aspect embodiment
External rotor electric machine.
The electric vehicle that the embodiment of second aspect of the present invention provides, because including described in any one of first aspect embodiment
External rotor electric machine, thus with beneficial effect possessed by any one of above-described embodiment, details are not described herein.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the configuration schematic diagram of external rotor electric machine described in one embodiment of the invention.
Wherein, the corresponding relationship in Fig. 1 between appended drawing reference and component names are as follows:
1 external rotor electric machine, 10 wheel hubs, 12 end caps, 122 mounting grooves, 124 boss, 14 magnet rings, 16 stator modules, 18 motors
Axis, 20 Hall subassemblies, 202 brackets, 2022 threading holes, 204 Hall circuit boards, 2,042 second leads, 206 Hall sensors, 22
Oil sealing, 24 electric wires, 242 first leads.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to the external rotor electric machine 1 of Fig. 1 description according to some embodiments of the invention.
As shown in Figure 1, the embodiment of first aspect present invention provides a kind of external rotor electric machine 1, comprising: outer rotor group
Part, stator module 16, motor shaft 18 and Hall subassembly 20.
Specifically, which includes the wheel hub 10 with cavity, covers the end cap 12 mounted in the open end of wheel hub 10
And it is mounted on the magnet ring 14 on end cap 12, wherein be provided with the first mounting hole, end cap on the wall opposite with end cap 12 of wheel hub 10
The second mounting hole is provided on 12；Stator module 16 is located in cavity, and stator module 16 includes the stator iron with iron core through-hole
Core；Motor shaft 18 cooperates respectively with the first mounting hole, iron core through-hole and the second mounting hole, so that outer rotor component and stator pack
Part 16 is assembled with motor shaft 18 respectively；Hall subassembly 20 is mounted on motor shaft 18, and the outside of Hall subassembly 20 is arranged with magnetic
Ring 14, Hall subassembly 20 are used to detect the magnetic field of magnet ring 14.
The external rotor electric machine 1 that the embodiment of first aspect present invention provides, Hall subassembly 20 are fixedly mounted on motor shaft 18
On, and in the magnet ring 14 being located on end cap 12, it may be assumed that use what Hall subassembly 20 was separated with stator module 16 in the technical solution
Mounting means, on the one hand, so that the Hall subassembly 20 far from stator module 16, avoids the stator pack when external rotor electric machine 1 works
16 temperature of part it is excessively high it is hurtful to Hall subassembly 20 happen, improve the service life of Hall subassembly 20, Yi Jiti
The high safety in utilization of external rotor electric machine 1；On the other hand, it when being repaired to Hall subassembly 20, is not necessarily to stator module
16 take out and can repair, and reduce the maintenance difficulty of Hall subassembly 20, improve maintenance efficiency and repair quality.
Wherein, the working principle of the external rotor electric machine 1 are as follows: when external rotor electric machine 1 works, outer rotor component rotation,
That is the magnet ring 14 on wheel hub 10, end cap 12 and end cap 12 rotates together, and Hall subassembly 20 be fixed on it is quiet on motor shaft 18
It is only motionless, with the position of reaction magnetic ring 14, it may be assumed that then the Magnetic Field of detection magnet ring 14 will test signal and be transferred to outer turn
The controller of sub-motor, the signal control external rotor electric machine 1 which detects according to Hall subassembly 20 work.
It is worth noting that the end cap 12 is fixed by screws in the open end of wheel hub 10 and the number of pole-pairs of magnet ring 14
Equal to the number of pole-pairs of external rotor electric machine 1.
In addition, the external rotor electric machine 1 in above-described embodiment provided by the invention can also have following additional technical feature:
As shown in Figure 1, be provided with mounting groove 122 on the outer end of end cap 12, magnet ring 14 and suddenly is provided in mounting groove 122
That component 20, wherein magnet ring 14 is fixedly connected in mounting groove 122, and the slot bottom of mounting groove 122 is provided with through end cap 12
Second mounting hole that partially passes through of second mounting hole, motor shaft 18 is fixedly connected with Hall subassembly 20.
In the technical scheme, by the way that Hall subassembly 20 to be arranged in the mounting groove 122 of 12 outer end of end cap, a side
Face, so that the Hall subassembly 20 far from stator module 16, avoids 16 temperature of stator module when external rotor electric machine 1 works excessively high right
Hall subassembly 20 is hurtful to be happened, and the service life of Hall subassembly 20 is improved, and improves external rotor electric machine 1
Safety in utilization；On the other hand, it when being repaired to Hall subassembly 20, without repairing the opening of end cap 12, reduces
The maintenance difficulty of Hall subassembly 20, simplifies dismounting step, and improve maintenance efficiency and repair quality, also, avoid
Due to often dismantle cause the motor wheel hub 10 to spoil, motor leak and the problem of not can guarantee concentricity.
As shown in Figure 1, being provided with boss 124 on the outer end of end cap 12, mounting groove 122 is provided on boss 124,
In, boss 124 is that integral type is connect with end cap 12.
In the technical scheme, by the way that boss 124 is arranged in the outer end of end cap 12, then by Hall subassembly 20 and magnet ring
14 are mounted in the mounting groove 122 of the boss 124, on the one hand avoid directly opening up mounting groove 122 on end cap 12, effectively improve
On the other hand the structural strength of end cap 12, increases operating space to improve the service life of end cap 12, convenient to Hall
Component 20 and magnet ring 14 are dismounted, and disassembly efficiency is improved, and reduce dismounting difficulty, wherein the boss 124 and end cap 12
Integral type connection effectively increases bonding strength, and improves the service life of end cap 12, and the boss 124 and end cap 12
It is integrally formed, it can be convenient and produced in batches, improve production efficiency.
As shown in Figure 1, Hall subassembly 20 includes bracket 202, Hall circuit board 204 and connect with Hall circuit board 204
Hall sensor 206, Hall sensor 206 and Hall circuit board 204 are mounted on bracket 202, and bracket 202 and motor shaft 18
Cooperation, so that Hall subassembly 20 is mounted on motor shaft 18.
In the technical scheme, cooperated by bracket 202 and motor shaft 18 by Hall circuit board 204 and Hall sensor
206 are fixed on motor shaft 18, not only simplify the mounting means of Hall subassembly 20 Yu motor shaft 18, reduce installation difficulty,
And also improve the mounting stability of Hall subassembly 20 Yu motor shaft 18.
It is worth noting that the Hall circuit board 204 is fixed by screw and bracket 202.
As shown in Figure 1, bracket 202 includes the mounting portion of positioning region with one end that positioning region is arranged in, the section of mounting portion
Width is greater than the cross-sectional width of positioning region, and Hall circuit board 204 and Hall sensor 206 are equipped on mounting portion, wherein branch
Frame 202 is provided with the assembly through-hole through positioning region and mounting portion, and bracket 202 is by circlip and 18 engagement sleeves of motor shaft mounted in electricity
On arbor 18.
In the technical scheme, bracket 202 is fixed on motor shaft 18 by circlip, bracket 202 can not only be made
It is stably mounted on motor shaft 18, but also is effectively simplified the mounting means of bracket 202 Yu motor shaft 18, improve installation
Efficiency has saved time cost, and convenient for disassembly and assembly, easy to repair.
Wherein, it is worth noting that, which is that integral type is connect with mounting portion, it may be assumed that the bracket 202 is integrally formed,
The structural strength for effectively increasing bracket 202 improves the service life of bracket 202.
As shown in Figure 1, external rotor electric machine 1 further include: oil sealing 22 is sleeved on positioning region, and is matched with 122 interference of mounting groove
It closes, to be mounted on the open end of mounting groove 122, for by the Hall circuit board 204 and hall sensing on magnet ring 14 and mounting portion
Device 206 is encapsulated in mounting groove 122.
In the technical scheme, oil sealing 22 is fitted to mounting groove by the positioning region and mounting groove 122 with bracket 202
At 122 open end, magnet ring 14, Hall circuit board 204 and Hall sensor 206 are sealed in mounting groove 122, magnetic is avoided
Ring 14, Hall circuit board 204 and Hall sensor 206 contact the case where being damaged with the external world, improve Hall subassembly 20 and magnetic
The service life of ring 14, also, since the structure of oil sealing 22 is simple, and manufacture easily, so being installed by using 22 Duis of oil sealing
Slot 122 is sealed, not only effectively in mounting groove 122 Hall subassembly 20 and magnet ring 14 protected, but also drop
Low installation difficulty, and production cost is reduced, and the oil sealing 22 is convenient for disassembly and assembly, convenient for internal magnet ring 14, Hall line
Road plate 204 and Hall sensor 206 repair.
As shown in Figure 1, further includes: controller (not shown)；And electric wire 24, it is fixed on motor shaft 18, and with
Controller electrical connection, and is provided with first lead 242 on electric wire 24, be provided on the Hall circuit board 204 of Hall subassembly 20 with
The second lead 2042 that first lead 242 is electrically connected.
In the technical scheme, by electric wire 24 be electrically connected with the controller and Hall circuit board 204 on the second lead
2042 connect with the first lead 242 on electric wire 24, realize being electrically connected for Hall subassembly 20 and controller, wherein turn when outer
When sub-motor 1 works, outer rotor component rotation, that is to say, that the magnet ring 14 on wheel hub 10, end cap 12 and end cap 12 revolves together
Turn, and Hall subassembly 20 be fixed on it is stationary on motor shaft 18, with the position of reaction magnetic ring 14, it may be assumed that detection magnet ring 14 magnetic
Then field information will test signal and be transferred to controller, the signal control that controller is detected according to Hall subassembly 20 is outer to be turned
Sub-motor 1 works.
It is worth noting that the electric wire 24 is higher temperature line.
It is arranged as shown in Figure 1, be provided with plug on one in first lead 242 and the second lead 2042, on another
There are slot, slot and plug grafting, so that first lead 242 is electrically connected with the second lead 2042.
In the technical scheme, by the grafting of slot and plug, first lead 242 and the second lead are not only realized
2042 quick connection, it is time saving and energy saving, and also improve the connective stability of first lead 242 and the second lead 2042.
As shown in Figure 1, threading hole 2022 is provided on the positioning region of bracket 202, the second lead on Hall circuit board 204
2042 pass through threading hole 2022 is electrically connected with first lead 242.
In the technical scheme, it by the way that threading hole 2022 is arranged on the positioning region of bracket 202, not only acts as regular and solid
The effect of fixed second lead 2042, but also naked be exposed on the external of the second lead 2042 is effectively avoided to occur damaged and then cause to endanger
The case where, effectively increase the service life and safety in utilization of Hall subassembly 20.
It is worth noting that be set with waterproof plug (not shown) on second lead 2042, and with threading hole 2022
Interference fit, in this way it is possible to prevente effectively from liquid runs down threading hole 2022 flows on Hall circuit board 204, causes Hall circuit board
204 the case where burning out, further increase the service life of Hall subassembly 20.
The embodiment of second aspect of the present invention provides a kind of electric vehicle (not shown), including first aspect embodiment
Any one of external rotor electric machine 1.
The electric vehicle that the embodiment of second aspect of the present invention provides, because of outer turn including any one of first aspect embodiment
Sub-motor 1, thus with beneficial effect possessed by any one of above-described embodiment, details are not described herein.
To sum up, as shown in Figure 1, external rotor electric machine provided by the invention 1, by using by Hall subassembly 20 and stator module
16 isolated mounting means can repair Hall subassembly 20 without taking out stator module 16 from the inside of external rotor electric machine 1, drop
The low maintenance difficulty of Hall subassembly 20, improves the maintenance efficiency of outer rotor component, and also efficiently avoid stator pack
Part 16 during the work time temperature it is excessively high and the case where burn out Hall subassembly 20, so that improve Hall subassembly 20 uses the longevity
Life.
In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase
To importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, be also possible to detachably connect
It connects, or is integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of external rotor electric machine characterized by comprising
Outer rotor component is mounted in the end cap of the open end of the wheel hub including wheel hub, lid with cavity and is mounted on described
Magnet ring on end cap, wherein be provided with the first mounting hole on the wheel hub wall opposite with the end cap, be arranged on the end cap
There is the second mounting hole；
Stator module is located in the cavity, and the stator module includes the stator core with iron core through-hole；
Motor shaft cooperates with first mounting hole, the iron core through-hole and second mounting hole respectively, so that described outer turn
Sub-component and the stator module are assembled with the motor shaft respectively；
Hall subassembly is mounted on the motor shaft, and the magnet ring is arranged with outside the Hall subassembly, the Hall group
Part is used to detect the magnetic field of the magnet ring；
The Hall subassembly includes bracket, Hall circuit board and the Hall sensor connecting with the Hall circuit board；
The bracket includes the mounting portion of positioning region with one end that the positioning region is arranged in, and the cross-sectional width of the mounting portion is big
Cross-sectional width in the positioning region, and the Hall circuit board and the Hall sensor are installed on the mounting portion,
In, the bracket is provided with the assembly through-hole through the positioning region and the mounting portion, the bracket by circlip with it is described
Motor shaft engagement sleeves are on the motor shaft；
It is provided with mounting groove on the outer end of the end cap, the magnet ring and the Hall subassembly are provided in the mounting groove,
Wherein, the magnet ring is fixedly connected in the mounting groove, and the slot bottom of the mounting groove is provided with the institute through the end cap
The second mounting hole is stated, second mounting hole that partially passes through of the motor shaft is fixedly connected with the Hall subassembly.
2. external rotor electric machine according to claim 1, which is characterized in that
It is provided with boss on the outer end of the end cap, the mounting groove is provided on the boss, wherein the boss and institute
End cap is stated as integral type connection.
3. external rotor electric machine according to claim 1, which is characterized in that
The Hall sensor and the Hall circuit board are installed on the bracket, and the bracket is matched with the motor shaft
It closes, so that the Hall subassembly is mounted on the motor shaft.
4. external rotor electric machine according to claim 1, which is characterized in that further include:
Oil sealing is sleeved on the positioning region, and is interference fitted with the mounting groove, to be mounted on the opening of the mounting groove
End, for by the magnet ring and the mounting portion the Hall circuit board and the Hall sensor be encapsulated in the installation
In slot.
5. external rotor electric machine according to claim 1 or 4, which is characterized in that further include:
Controller；And
Electric wire is fixed on the motor shaft, and is electrically connected with the controller, and is provided with first lead on the electric wire,
The second lead being electrically connected with the first lead is provided on the Hall circuit board of the Hall subassembly.
6. external rotor electric machine according to claim 5, which is characterized in that
It is provided with plug on one in the first lead and second lead, slot is provided on another, it is described to insert
Slot and the plug grafting, so that the first lead is electrically connected with second lead.
7. external rotor electric machine according to claim 5, which is characterized in that
Threading hole is provided on the positioning region of the bracket, second lead on the Hall circuit board passes through described
Threading hole is electrically connected with the first lead.
8. a kind of electric vehicle characterized by comprising the external rotor electric machine as described in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610442113.6A CN105978237B (en) | 2016-06-17 | 2016-06-17 | External rotor electric machine and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610442113.6A CN105978237B (en) | 2016-06-17 | 2016-06-17 | External rotor electric machine and electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN105978237A CN105978237A (en) | 2016-09-28 |
| CN105978237B true CN105978237B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610442113.6A Active CN105978237B (en) | 2016-06-17 | 2016-06-17 | External rotor electric machine and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106787305B (en) * | 2017-01-14 | 2019-02-15 | 山东理工大学 | A kind of electric return board motor |
| CN110149031A (en) * | 2019-06-21 | 2019-08-20 | 杭州摩恩电机有限公司 | A kind of novel permanent magnetic fork truck motor and its magnetic field position detection method |
| CN118232605A (en) * | 2024-04-23 | 2024-06-21 | 克瑞科技(东莞)有限公司 | Reciprocating telescopic and vibrating motor driving mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202260955U (en) * | 2011-09-28 | 2012-05-30 | 浙江中科德润科技有限公司 | Hub motor |
| CN203014634U (en) * | 2012-11-20 | 2013-06-19 | 砀山县帝佑车业有限公司 | External Hall device of brushless motor for electric car |
| CN205846997U (en) * | 2016-06-17 | 2016-12-28 | 浙江绿源电动车有限公司 | External rotor electric machine and electric motor car |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3878240D1 (en) * | 1988-09-21 | 1993-03-18 | Siemens Ag | ELECTRIC MOTOR DRIVE, IN PARTICULAR ADJUSTMENT DRIVE FOR A MOTOR VEHICLE. |
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2016
- 2016-06-17 CN CN201610442113.6A patent/CN105978237B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202260955U (en) * | 2011-09-28 | 2012-05-30 | 浙江中科德润科技有限公司 | Hub motor |
| CN203014634U (en) * | 2012-11-20 | 2013-06-19 | 砀山县帝佑车业有限公司 | External Hall device of brushless motor for electric car |
| CN205846997U (en) * | 2016-06-17 | 2016-12-28 | 浙江绿源电动车有限公司 | External rotor electric machine and electric motor car |
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| CN105978237A (en) | 2016-09-28 |
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Denomination of invention: External rotor motor and electric vehicle Effective date of registration: 20200807 Granted publication date: 20190405 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch Pledgor: ZHEJIANG LUYUAN ELECTRIC VEHICLE Co.,Ltd. Registration number: Y2020330000597 |
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