CN207426838U - Motor - Google Patents

Abstract

The utility model provides a kind of motor, including controller；Stator department；Rotor portions, rotor portions are installed on one end of stator department, and controller is arranged in the other end of stator department, and rotor portions are oppositely disposed with controller.Rotor portions are arranged on to one end of stator department, controller is arranged in the other end of stator department, and be oppositely arranged rotor portions and controller, the thickness that can effectively reduce stator structure is so set, so as to be effectively improved the stock utilization of the motor and performance and motor.

Description

Motor

Technical field

The utility model is related to motor device technical field, in particular to a kind of motor.

Background technology

With market development demand, household electrical appliance wind turbine direct currentization progressively becomes trend, and industry uses brushless motor at present Be radial magnetic field structure (i.e. magnetic field is distributed along rotor radial) and power of motor density it is relatively low (power density=output power/ Weight), i.e., stock utilization is low.It is influenced by the rise of the motor prices of raw materials, high power density motor becomes brushless dc Machine development trend.Motor in axial magnetic field is with its performance advantage, gradual expanded application.

Conventional motors injection moulded stator and controller are separately positioned, are welded in place using post-processing mode, protective, thermal diffusivity It can be poor.Meanwhile the bearing of conventional motors is located at the both sides of rotor, causes that motor thickness is larger, low space utilization, Wu Faman Sufficient market miniature requirement.

Utility model content

The main purpose of the utility model is that providing a kind of motor, to solve, motor thickness in the prior art is big to ask Topic.

To achieve these goals, one side according to the present utility model provides a kind of motor, including：Controller； Stator department；Rotor portions, rotor portions are installed on one end of stator department, and controller is arranged in the other end of stator department, rotor portions It is oppositely disposed with controller.

Further, rotor portions include：Shaft, shaft are used to be connected with stator department；Magnet steel portion, shaft and magnet steel portion one Body injection molding.

Further, shaft with magnet steel portion junction is provided with location structure.

Further, location structure includes being arranged on facing directly on the outer circumferential surface of shaft, alternatively, location structure includes setting Inclined wire line on the outer circumferential surface of shaft, alternatively, location structure includes the through hole being arranged in shaft, radial direction of the through hole along shaft Direction is set, alternatively, location structure includes the positioning protrusion being arranged on the outer circumferential surface of shaft.

Further, location structure includes being arranged on facing directly on the outer circumferential surface of shaft, faces directly to be multiple, multiple to face directly At least there are two face directly to be mutually parallel.

Further, it is multiple face directly at least adjacent two face directly and be mutually perpendicular to.

Further, magnet steel portion includes：Rotor disk, rotor disk have shaft hole and accommodating chamber, and shaft is arranged at shaft hole It is interior；Magnet steel, magnet steel are arranged in accommodating chamber, and shaft, rotor disk and magnet steel integrated injection molding are so that injection molding material is wrapped in rotor On the outer surface of disk and/or magnet steel.

Further, filled with injection molding material between the outer circumferential surface of shaft and the inner wall of shaft hole, so that shaft passes through injection Material is connected with rotor disk.

Further, the first heat emission hole is offered on rotor disk, the first heat emission hole is multiple, and multiple first heat emission holes edges turn Axis hole it is arranged circumferentially spaced.

Further, magnet steel is annular magnetic steel, and the internal diameter of annular magnetic steel is dissipated more than or equal to the Kong Xinzhi first of shaft hole Maximum range at hot hole.

Further, stator department includes：Stator body offers the first connection on the end face of the first end of stator body Hole.

Further, the second heat emission hole, the center of circle edge of stator body are further opened on the end face of the first end of stator body The radial direction of stator body is to the distance of the hole heart of the second heat emission hole and the center of circle radially to the hole heart of the first connecting hole Distance it is different.

Further, the second heat emission hole and/or the first connecting hole are the blind hole opened up along the axial direction of stator body.

Further, the center of circle is radially less than the center of circle radially to the to the distance of the hole heart of the first connecting hole The distance of the hole heart of two heat emission holes.

Further, the second heat emission hole is multiple, and multiple second heat emission holes are along the arranged circumferentially spaced of stator body.

Further, the first connecting hole is multiple that multiple first connecting holes are more along the arranged circumferentially spaced of stator body A second heat emission hole is alternately set with multiple first connecting holes.

Further, stator department includes：Connector, connector are arranged in the first connecting hole, and connector is column structure, The end face of connector offers location hole, and location hole is opened up along the axial direction of connector.

Further, bearing hole is offered in the middle part of the end face of the first end of stator body, the second heat emission hole and first connect Hole is connect along the circumferentially disposed of bearing hole.

Further, the inner peripheral surface of bearing hole is provided with ring-shaped step, the table top of ring-shaped step and the inner wall of bearing hole it Between form the first mounting hole, the second mounting hole is formed between the inner peripheral surface of ring-shaped step and the bottom of bearing hole.

Further, bearing hole is the blind hole being opened in the first end of stator body.

Further, stator body includes stator unit and connection yoke, stator unit to be multiple, connection yoke be it is multiple, it is more A stator unit and multiple connection yokes enclose and are set as loop configuration, wherein, pass through a connection yoke between two neighboring stator unit It is connected.

Further, the inner peripheral surface of loop configuration, which encloses, is set as polygonized structure.

Further, controller is platy structure, and controller is located in loop configuration, and the outer circumferential surface of controller is in ring junction The inner peripheral surface of structure is engaged.

Further, motor further includes：Bearing portion, bearing portion are arranged in bearing hole, and rotor portions are by bearing portion with determining The first end of sub-portion is connected.

Further, bearing portion includes：Bearing holder (housing, cover), the bearing holder (housing, cover) of part are arranged in bearing hole, the bearing holder (housing, cover) in another portion Extend outside bearing hole and along the radial direction of stator department, the be connected with stator department second company is provided on bearing holder (housing, cover) Connect hole.

Further, bearing portion further includes：Bearing, bearing are arranged in bearing holder (housing, cover), and rotor portions are connected with bearing.

Further, bearing is multiple that multiple bearings are set gradually along the axis direction of stator department, the outer diameter of multiple bearings It is identical, alternatively, the outer diameter of multiple bearings is different.

Further, motor further includes：End cap, end cap are connected with rotor portions, and positioned at the outside of rotor portions, rotor portions Can with respect to end cap and stator department rotatably arranged with.

Using the technical solution of the utility model, rotor portions are arranged on to one end of stator department, it is fixed that controller is arranged on In the other end of sub-portion, and rotor portions and controller are oppositely arranged, the thickness that can effectively reduce stator structure is so set Degree, so as to be effectively improved the stock utilization of the motor and performance and motor.

Description of the drawings

The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality New schematic description and description does not form the improper restriction to the utility model for explaining the utility model. In the accompanying drawings：

Fig. 1 shows the schematic cross-sectional view of the first embodiment of motor according to the present utility model；

Fig. 2 shows the configuration schematic diagram of the second embodiment of motor according to the present utility model；

Fig. 3 shows the assembling structure schematic diagram of the 3rd embodiment of motor according to the present utility model；

Fig. 4 shows the schematic cross-sectional view of rotor portions according to the present utility model and the embodiment of bearing portion；

Fig. 5 shows the structure diagram of the embodiment of rotor portions according to the present utility model；

Fig. 6 shows the structure diagram of the first embodiment of shaft according to the present utility model；

Fig. 7 shows the structure diagram of the second embodiment of shaft according to the present utility model；

Fig. 8 shows the structure diagram of the 3rd embodiment of shaft according to the present utility model；

Fig. 9 shows the structure diagram of the fourth embodiment of shaft according to the present utility model；

Figure 10 shows the configuration schematic diagram of the embodiment of rotor portions according to the present utility model；

Figure 11 shows the schematic cross-sectional view of the embodiment of rotor portions according to the present utility model；

Figure 12 shows the structure diagram of the first embodiment of stator department according to the present utility model；

Figure 13 shows the structure diagram of the second embodiment of stator department according to the present utility model；

Figure 14 shows the structure diagram of the 3rd embodiment of stator department according to the present utility model；

Figure 15 shows the schematic cross-sectional view of the fourth embodiment of stator department according to the present utility model；

Figure 16 shows the structure diagram of the 5th embodiment of stator department according to the present utility model；

Figure 17 shows the structure diagram of the first embodiment of connector according to the present utility model；

Figure 18 shows the structure diagram of the second embodiment of connector according to the present utility model.

Wherein, above-mentioned attached drawing is marked including the following drawings：

10th, controller；

20th, stator department；21st, stator body；211st, the first connecting hole；212nd, the second heat emission hole；213rd, bearing hole；2131、 Ring-shaped step；22nd, connector；221st, location hole；23rd, the first mounting hole；24th, the second mounting hole；25th, stator unit；26th, connect Yoke；

30th, rotor portions；31st, shaft；311st, face directly；312nd, inclined wire line；313rd, through hole；32nd, magnet steel portion；321st, rotor disk； 3211st, shaft hole；3212nd, the first heat emission hole；322nd, magnet steel；

40th, bearing portion；41st, bearing holder (housing, cover)；42nd, the second connecting hole；43rd, bearing；

50th, end cap；51st, screw.

Specific embodiment

It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.

It should be noted that term " first ", " second " in the description and claims of this application and attached drawing etc. It is the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that the art so used Language can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except illustrating herein Or the order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production The intrinsic other steps of product or equipment or unit.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand The big thickness of layer and region, and make identical device is presented with like reference characters, thus they are retouched by omitting It states.

With reference to shown in Fig. 1 to Figure 18, embodiment according to the present utility model provides a kind of motor.

Specifically, which includes controller 10, stator department 20 and rotor portions 30.Rotor portions 30 are installed on stator department 20 On one end, controller 10 is arranged in the other end of stator department 20, and rotor portions 30 are oppositely disposed with controller 10.

In the present embodiment, rotor portions are arranged on to one end of stator department, controller is arranged on to the other end of stator department It is interior, and rotor portions and controller are oppositely arranged, the thickness that can effectively reduce stator structure is so set, so as to effectively Improve the motor and performance and the stock utilization of motor.

As shown in Figures 1 to 4, rotor portions 30 include shaft 31 and magnet steel portion 32.Shaft 31 is used to be connected with stator department 20 It connects.Shaft 31 and 32 integrated injection molding of magnet steel portion.The stability of rotor portions can be effectively improved by so setting.

In order to further improve the stability and reliability of rotor, being provided with 32 junction of magnet steel portion for shaft 31 is fixed Bit architecture.Wherein, as shown in Figures 6 to 9, location structure includes being arranged on the outer circumferential surface of shaft 31 facing 311 directly.Alternatively, Location structure can be provided in the inclined wire line 312 on the outer circumferential surface of shaft 31.Turn alternatively, location structure can also be provided in Through hole 313 on axis 31, through hole 313 are set along the radial direction of shaft 31.Location structure can also include being arranged on shaft Positioning protrusion on 31 outer circumferential surface.Wherein, 311 are faced directly to be multiple, it is multiple face 311 directly at least there are two face 311 directly mutually It is parallel.It is of course also possible to by it is multiple face at least adjacent in 311 two directly and face 311 directly be arranged to orthogonal mode.

As shown in Figure 10 and Figure 11, magnet steel portion 32 includes rotor disk 321 and magnet steel 322.Rotor disk 321 has shaft hole 3211 and accommodating chamber, shaft 31 be arranged in shaft hole 3211.Magnet steel 322 is arranged in accommodating chamber, shaft 31, rotor disk 321 With 322 integrated injection molding of magnet steel so that injection molding material is wrapped on the outer surface of rotor disk 321 and magnet steel 322.Wherein, such as Figure 11 It is shown, the rotor disk 321 of being close on one side of magnet steel 322 can be set, another side is exposed at outside rotor disk, and such injection molding material can be with It is only wrapped in the exposed surface of rotor disk and magnet steel 322 is exposed on the surface of rotor disk.Wherein, the outer circumferential surface of shaft 31 is with turning Filled with injection molding material between the inner wall of axis hole 3211, so that shaft 31 is connected by injection molding material with rotor disk 321.So set The connective stability between shaft and rotor disk can be effectively improved.Preferably, magnet steel 322 is annular magnetic steel, annular magnetic steel Internal diameter is greater than or equal to the maximum range at the first heat emission holes of Kong Xinzhi 3212 of shaft hole 3211.

In order to improve the heat dissipation performance of motor, the first heat emission hole 3212 is offered on rotor disk 321.First heat emission hole 3212 To be multiple, multiple first heat emission holes 3212 are along the arranged circumferentially spaced of shaft hole 3211.

Wherein, as shown in Figure 12 to 16, stator department 20 includes stator body 21, on the end face of the first end of stator body 21 Offer the first connecting hole 211.Installation rotor portions can be facilitated by so setting.

Specifically, in order to further reduce the temperature of motor, it is further opened on the end face of the first end of stator body 21 Second heat emission hole 212.The center of circle of stator body 21 along stator body 21 radial direction to the second heat emission hole 212 the hole heart away from From from the center of circle radially to different with a distance from the hole heart of the first connecting hole 211.Preferably, the center of circle is radially to first The distance of the hole heart of connecting hole 211 be less than the center of circle radially to the second heat emission hole 212 the hole heart distance.

Preferably, the second heat emission hole 212 and the first connecting hole 211 are blind to be opened up along the axial direction of stator body 21 Hole.The utilization rate of motor material and the performance of motor can be effectively improved by so setting.Preferably, the second heat emission hole 212 is Multiple, multiple second heat emission holes 212 are along the arranged circumferentially spaced of stator body 21.Certainly, the first connecting hole 211 is also more A, multiple first connecting holes 211 are along the arranged circumferentially spaced of stator body 21, multiple second heat emission holes 212 and multiple first Connecting hole 211 is alternately set.

As shown in Figure 14 and Figure 15, Figure 17 and 18, in order to improve stator department and the reliability of other parts cooperation, stator Portion 20 is provided with connector 22.Connector 22 is arranged in the first connecting hole 211, connector 22 be column structure, connector 22 End face offer location hole 221, location hole 221 is opened up along the axial direction of connector 22.

As shown in Figure 12 and Figure 15, bearing hole 213 is offered in the middle part of the end face of the first end of stator body 21, second dissipates 212 and first connecting hole 211 of hot hole is along the circumferentially disposed of bearing hole 213.Wherein, the inner peripheral surface of bearing hole 213 is provided with annular Step 2131.The first mounting hole 23, ring-shaped step 2131 are formed between the table top of ring-shaped step 2131 and the inner wall of bearing hole 213 Inner peripheral surface and bearing hole 213 bottom between form the second mounting hole 24.Stator department peace can be effectively improved by so setting Fill the reliability and stabilization of bearing.Further, bearing hole 213 is the blind hole being opened in the first end of stator body 21.

As shown in figure 16, stator body 21 includes stator unit 25 and connection yoke 26.Stator unit 25 is multiple, connection yoke 26 is multiple, and multiple stator units 25 and multiple connection yokes 26 enclose and be set as loop configuration, wherein, two neighboring stator unit 25 it Between be connected by a connection yoke 26.The stability and reliability of stator department can be effectively improved by so setting.Wherein, ring The inner peripheral surface of shape structure, which encloses, is set as polygonized structure.Controller 10 is platy structure, and controller 10 is located in loop configuration, is controlled The outer circumferential surface of device 10 is engaged in the inner peripheral surface of loop configuration.

As shown in Figure 2 and Figure 4, bearing portion 40 includes bearing holder (housing, cover) 41.Partial bearing holder (housing, cover) 41 is arranged in bearing hole 213, The bearing holder (housing, cover) 41 in another portion is located at outside bearing hole 213 and extends along the radial direction of stator department 20, is set on bearing holder (housing, cover) 41 useful In the second connecting hole 42 being connected with stator department 20.So set can operatively improve stator structure stability and can By property.

Bearing portion 40 further includes bearing 43.Bearing 43 is arranged in bearing holder (housing, cover) 41, and rotor portions 30 are connected with bearing 43.It is excellent Selection of land, bearing 43 are multiple.Multiple bearings 43 are set gradually along the axis direction of stator department 20, the outer diameter phase of multiple bearings 43 Together, alternatively, can also the outer diameter of multiple bearings 43 be arranged to different modes, wherein, bearing portion is engaged with bearing hole.

Further, motor further includes end cap 50.End cap 50 is connected with rotor portions 30, and positioned at the outer of rotor portions 30 Side, rotor portions 30 can with respect to end cap 50 and stator department 20 rotatably arranged with.The security of the motor can be improved by so setting Energy.Wherein, as Figure 11 and in f, Figure 14 in f1 be represented as injection molding material.

Specifically, the protection separated with stator of conventional motors controller can be efficiently solved using the motor of the application The problem of property, poor radiation.It solves the problem of conventional motors bearing is located at rotor both sides, causes motor thickness big, solves Conventional motors assembly process is more, technique is relatively complicated.Realize motor and controller integral, motor ultrathin, miniaturization Design improves motor material utilization rate, power density, reduces motor thickness.Meanwhile motor assembling is simple, reliability is high. Wherein, which is novel axial magnetic field motor, and rotor assembly is matched somebody with somebody with field frame assembly using screw 51 and bearing holder (housing, cover) combined type Conjunction mode ensures airgap uniformity degree and motor performance, provides motor reliability, and controller uses integrated plastic packaging knot with stator Structure, controller are embedded in stator, significantly reduce motor axial height.The rotor that i.e. motor uses for monofocal bearing arrangement, Significantly reduce motor axial height.The wound stator of the motor is N number of blocking combining structure (N=Z/2, Z are number of stator slots), Its yoke portion is designed as optional distribution structure so that performance effectively improves and adds the practicability of the motor stator.Controller For N sides shape monolithic construction, be conducive to raising material is beneficial to rate.The injection moulded stator outer circle of motor may be designed as uniformly distributed concave surface and set Meter, concave surface are located between the stator unit of wound stator, increasing heat radiation area, promote stock utilization.

Wherein, annular convex platform is provided in axle sleeve, bearing is divided into two bearing chambers, the internal diameter of the two bearing chambers can By be arranged to it is identical in a manner of and different modes.Further, in order to improve the stability of bearing holder (housing, cover) and reliability, Ke Yi Reinforcing rib structure is set on the outer circumferential surface being located in bearing hole of bearing holder (housing, cover).Rotor portions can be effectively improved and determine by so setting Intensity when sub-portion coordinates.

Controller is located at two bearings room one side, and bearing is not passed through controller, and controller is integrated with wound stator injection, around Line stator is made of N number of unit stator, can be by increasing the number of stator unit, in order to be promoted according to power, performance requirement Motor protective, rotor-side can increase end cap.Wherein it is possible to first correspond to bearing press-in rotor in screens, axle sleeve is installed To on being held last item, another side bearing is installed, rotor assembly is pressed into injection moulded stator, the bearing holder (housing, cover) of rotor assembly and stator is total It locks, end cap is pressed into or is buckled on injection moulded stator into trip bolt.

Than that described above, it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in the present specification Example ", " embodiment " etc. refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary Property description at least one embodiment in.It is not centainly to refer to same reality that statement of the same race, which occur, in multiple places in the description Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot Other embodiment is closed to realize that this feature, structure or feature also fall in the scope of the utility model.

In the above-described embodiments, all emphasize particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, it may refer to the associated description of other embodiment.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.

Claims (28)

1. a kind of motor, which is characterized in that including：

Controller (10)；

Stator department (20)；

Rotor portions (30), the rotor portions (30) are installed on one end of the stator department (20), and the controller (10) is set In in the other end of the stator department (20), the rotor portions (30) are oppositely disposed with the controller (10).

2. motor according to claim 1, which is characterized in that the rotor portions (30) include：

Shaft (31), the shaft (31) are used to be connected with the stator department (20)；

Magnet steel portion (32), the shaft (31) and magnet steel portion (32) integrated injection molding.

3. motor according to claim 2, which is characterized in that the shaft (31) with magnet steel portion (32) junction It is provided with location structure.

4. motor according to claim 3, which is characterized in that

The location structure includes being arranged on the outer circumferential surface of the shaft (31) facing (311) directly, alternatively,

The location structure includes the inclined wire line (312) being arranged on the outer circumferential surface of the shaft (31), alternatively,

The location structure includes being arranged on through hole (313) in the shaft (31), and the through hole (313) is along the shaft (31) radial direction is set, alternatively,

The location structure includes the positioning protrusion being arranged on the outer circumferential surface of the shaft (31).

5. motor according to claim 4, which is characterized in that the location structure includes being arranged on the shaft (31) Described on outer circumferential surface is faced directly (311), and described face directly (311) are multiple described to face in (311) that at least there are two described directly to be multiple (311) are faced directly to be mutually parallel.

6. motor according to claim 5, which is characterized in that face at least adjacent in (311) two directly described in multiple Face directly (311) are mutually perpendicular to.

7. motor according to claim 2, which is characterized in that the magnet steel portion (32) includes：

Rotor disk (321), the rotor disk (321) have shaft hole (3211) and accommodating chamber, and the shaft (31) is arranged at institute It states in shaft hole (3211)；

Magnet steel (322), the magnet steel (322) are arranged in the accommodating chamber, the shaft (31), the rotor disk (321) and Magnet steel (322) integrated injection molding is so that injection molding material is wrapped in the rotor disk (321) and/or the magnet steel (322) On outer surface.

8. motor according to claim 7, which is characterized in that the outer circumferential surface of the shaft (31) and the shaft hole (3211) filled with the injection molding material between inner wall, so that the shaft (31) passes through the injection molding material and the rotor disk (321) it is connected.

9. motor according to claim 7, which is characterized in that offer the first heat emission hole on the rotor disk (321) (3212), first heat emission hole (3212) is multiple, and multiple first heat emission holes (3212) are along the shaft hole (3211) It is arranged circumferentially spaced.

10. motor according to claim 9, which is characterized in that the magnet steel (322) be annular magnetic steel, the annular magnetic The internal diameter of steel is greater than or equal to the maximum range at the first heat emission hole (3212) described in the Kong Xinzhi of the shaft hole (3211).

11. motor according to claim 1, which is characterized in that the stator department (20) includes：

Stator body (21) offers the first connecting hole (211) on the end face of the first end of the stator body (21).

12. motor according to claim 11, which is characterized in that on the end face of the first end of the stator body (21) also Offer the second heat emission hole (212), the center of circle of the stator body (21) is along the radial direction of the stator body (21) to institute The distance of the hole heart of the second heat emission hole (212) and the center of circle are stated along the radial direction to first connecting hole (211) The distance of the hole heart is different.

13. motor according to claim 12, which is characterized in that second heat emission hole (212) and/or first company It is the blind hole opened up along the axial direction of the stator body (21) to connect hole (211).

14. motor according to claim 12, which is characterized in that the center of circle along the radial direction to described first connect The distance for connecing the hole heart in hole (211) is less than the hole heart of the center of circle along the radial direction to second heat emission hole (212) Distance.

15. motor according to claim 12, which is characterized in that second heat emission hole (212) is multiple described to be multiple Second heat emission hole (212) is arranged circumferentially spaced along the stator body (21).

16. motor according to claim 15, which is characterized in that first connecting hole (211) is multiple described to be multiple First connecting hole (211) is arranged circumferentially spaced along the stator body (21), multiple second heat emission holes (212) with it is more A first connecting hole (211) is alternately set.

17. motor according to claim 11, which is characterized in that the stator department (20) includes：

Connector (22), the connector (22) are arranged in first connecting hole (211), and the connector (22) is column Structure, the end face of the connector (22) offer location hole (221), and the location hole (221) is along the connector (22) Axial direction opens up.

18. motor according to claim 12, which is characterized in that in the end face of the first end of the stator body (21) Portion offers bearing hole (213), second heat emission hole (212) and first connecting hole (211) along the bearing hole (213) It is circumferentially disposed.

19. motor according to claim 18, which is characterized in that the inner peripheral surface of the bearing hole (213) is provided with annular Step (2131) forms the first mounting hole between the table top of the ring-shaped step (2131) and the inner wall of the bearing hole (213) (23), the second mounting hole (24) is formed between the inner peripheral surface of the ring-shaped step (2131) and the bottom of the bearing hole (213).

20. motor according to claim 18, which is characterized in that the bearing hole (213) is to be opened in the stator sheet Blind hole in the first end of body (21).

21. motor according to claim 11, which is characterized in that the stator body (21) include stator unit (25) and Connection yoke (26), the stator unit (25) to be multiple, the connection yoke (26) be it is multiple, multiple stator units (25) and Multiple connection yokes (26), which are enclosed, is set as loop configuration, wherein, pass through an institute between the two neighboring stator unit (25) Connection yoke (26) is stated to be connected.

22. motor according to claim 21, which is characterized in that the inner peripheral surface of the loop configuration, which encloses, is set as polygon knot Structure.

23. motor according to claim 21, which is characterized in that the controller (10) be platy structure, the control Device (10) is located in the loop configuration, and the outer circumferential surface of the controller (10) is engaged in the inner peripheral surface of the loop configuration.

24. motor according to claim 18, which is characterized in that the motor further includes：

Bearing portion (40), the bearing portion (40) are arranged in the bearing hole (213), and the rotor portions (30) pass through the axis Bearing portion (40) is connected with the first end of the stator department (20).

25. motor according to claim 24, which is characterized in that the bearing portion (40) includes：

Bearing holder (housing, cover) (41), the bearing holder (housing, cover) (41) of part are arranged in the bearing hole (213), the bearing holder (housing, cover) in another portion (41) it is located at the bearing hole (213) outside and extends along the radial direction of the stator department (20), is set on the bearing holder (housing, cover) (41) It is equipped with the second connecting hole (42) being connected with the stator department (20).

26. motor according to claim 25, which is characterized in that the bearing portion (40) further includes：

Bearing (43), the bearing (43) are arranged in the bearing holder (housing, cover) (41), the rotor portions (30) and the bearing (43) It is connected.

27. motor according to claim 26, which is characterized in that the bearing (43) is multiple, multiple bearings (43) set gradually along the axis direction of the stator department (20), the outer diameter of multiple bearings (43) is identical, alternatively, multiple institutes The outer diameter for stating bearing (43) is different.

28. motor according to claim 1, which is characterized in that the motor further includes：

End cap (50), the end cap (50) are connected with the rotor portions (30), and positioned at the outside of the rotor portions (30), institute State rotor portions (30) can relatively described end cap (50) and the stator department (20) rotatably arranged with.