CN104753289A - Motor - Google Patents
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- CN104753289A CN104753289A CN201510121415.9A CN201510121415A CN104753289A CN 104753289 A CN104753289 A CN 104753289A CN 201510121415 A CN201510121415 A CN 201510121415A CN 104753289 A CN104753289 A CN 104753289A
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- Prior art keywords
- motor
- stator
- rotor
- hall element
- auxiliary tank
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Abstract
The invention discloses a motor. The motor comprises a rotor assembly, a stator and a hall element, wherein the rotor assembly comprises a housing, and a rotor arranged in the housing; the rotor comprises a rotor iron core, and a permanent magnet arranged on the inner circumferential wall of the rotor iron core; the stator is arranged at the inner side of the rotor, comprising a stator iron core, wherein the stator iron core comprises a stator iron core body, and a plurality of stator teeth which are circumferentially arranged at intervals on the stator iron core; assisting grooves are formed in the peripheral walls of the stator teeth; the hall element is arranged in the assisting grooves. According to the motor, the hall element is arranged in the assisting grooves in the housing, so that the axial size of the motor can be reduced, and the structure of the motor is compact; in addition, the rotor can be comprehensively covered with the housing, so that the magnetic resistance can reduced, and the output performance of the motor can be improved.
Description
Technical field
The present invention relates to motor device field, especially relate to a kind of motor.
Background technology
Point out in correlation technique, the Hall element of motor is generally arranged on the outside of permanent magnet, and usually relative in the axial direction with casing, thus makes casing cannot cover all sidedly, cover permanent magnet, to the magnetic resistance of motor be caused to become large thus, and then affect the output performance of motor.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention reside in and propose a kind of motor, compact conformation, the output performance of described motor are good.
According to motor of the present invention, comprising: rotor assembly, described rotor assembly comprises casing and is located at the rotor in described casing, and described rotor comprises rotor core and is located at the permanent magnet on the internal perisporium of described rotor core; Stator, described stator is located at the inner side of described rotor, and described stator comprises stator core, and described stator core comprises body and the spaced multiple stator tooth of circumference along described body, and the periphery wall of described stator tooth is formed with auxiliary tank; And Hall element, described Hall element is located in described auxiliary tank.
According to motor of the present invention, by being arranged on by Hall element in the auxiliary tank in casing, thus the axial dimension of motor can be reduced; make the structure of motor compacter; and guarantee that casing can cover rotor all sidedly, and then reduce magnetic resistance, improve the output performance of motor.
Particularly, the periphery wall of each described stator tooth is all formed with described auxiliary tank.
Alternatively, described Hall element is multiple, and described multiple Hall element is all located in same described auxiliary tank.
Alternatively, described Hall element is multiple, and described multiple Hall element is located in multiple described auxiliary tank respectively.
Further, described multiple stator tooth uniform intervals distribution in the circumference of described body.
Alternatively, described permanent magnet is the uniform intervals distribution in the circumference of described rotor core of multiple and described multiple permanent magnet.
Alternatively, described motor is vernier motor.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the motor according to the embodiment of the present invention.
Reference numeral:
100: motor;
1: rotor; 11: rotor core; 12: permanent magnet;
2: stator core; 21: body; 22: stator tooth; 23: auxiliary tank;
3: Hall element.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
Below with reference to Fig. 1, the motor 100 according to the embodiment of the present invention is described.
As shown in Figure 1, according to the motor 100 of the embodiment of the present invention, comprising: rotor assembly, stator and Hall element 3.Particularly, the rotor 1 that rotor assembly comprises casing (scheming not shown) and is located in casing, the permanent magnet 12 that rotor 1 comprises rotor core 11 and is located on the internal perisporium of rotor core 11.Such as in the example of fig. 1, rotor core 11 can be formed as cylindrical shape substantially, permanent magnet 12 can be multiple, each permanent magnet 12 all extends along the axis of rotor core 11, multiple permanent magnet 12 is all located at the inner side of rotor core 11 and can be evenly spaced apart in the circumference of rotor core 11, and casing also can be formed as cylindrical shape and be set in the outside of rotor 1.Wherein, permanent magnet 12 can be magnet steel etc.
Stator is located at the inner side of rotor 1, and stator comprises stator core 2, and stator core 2 comprises body 21 and the spaced multiple stator tooth 22 of circumference along body 21.Such as in the example of fig. 1, rotor 1 is set in outside stator rotationally, stator comprises stator core 2 and stator winding (scheming not shown), stator core 2 comprises body 21 and multiple stator tooth 22, body 21 can be formed as cylindrical shape substantially, the periphery wall that multiple stator tooth 22 is located at body 21 can be evenly spaced apart in the circumference of body 21, each stator tooth 22 extends towards the direction away from body 21 central axis by the periphery wall of body 21, and the outer end of each stator tooth 22 is all positioned at the inner side of permanent magnet 12, stator winding winding is on multiple stator tooth 22.
Further, the periphery wall of stator tooth 22 is formed with auxiliary tank 23, Hall element 3 is located in auxiliary tank 23.Such as in the example of fig. 1, auxiliary tank 23 can be recessed into by the direction of the periphery wall of stator tooth 22 towards body 21 central axis, and Hall element 3 is arranged in auxiliary tank 23, and can be positioned at the inner side of permanent magnet 12.Here, it should be noted that, the structure of Hall element 3, effect and operation principle are well known to those skilled in the art, no longer describe in detail here.
Like this; on the axial height of motor 100; Hall element 3 can between two of motor 100 axial end; thus effectively can reduce the axial height of motor 100 entirety; make the structure of motor 100 compacter; and in the radial direction of motor 100; Hall element 3 can be positioned at the inner side of casing; thus Hall element 3 can not cause interference to the axial dimension design of casing; guarantee that casing can overlay masking rotor 1 completely; the magnetic resistance of motor 100 can be reduced thus, improve the output performance of motor 100.
According to the motor 100 of the embodiment of the present invention; by Hall element 3 being arranged in the auxiliary tank 23 in casing; thus the axial dimension of motor 100 can be reduced; make the structure of motor 100 compacter; and guarantee that casing can cover rotor 1 all sidedly; and then reduce magnetic resistance, improve the output performance of motor 100.
In one embodiment of the invention, the periphery wall of each stator tooth 22 is all formed with auxiliary tank 23.Thus, effectively can improve the output performance of motor 100 by arranging multiple auxiliary tank 23, and so that the installation of Hall element 3, Installation Flexibility and the installation effectiveness of Hall element 3 can be improved owing to arranging multiple auxiliary tank 23.Such as in the example of fig. 1, stator core 2 can comprise nine stator tooths 22, each stator tooth 22 is formed with respectively an auxiliary tank 23, the structure of each auxiliary tank 23 can be identical, and multiple auxiliary tank 23 can be evenly spaced apart in the circumference of body 21.
Alternatively, Hall element 3 is multiple, and multiple Hall element 3 is all located in same auxiliary tank 23.Thus, be convenient to processing and install.Such as in the example of fig. 1, Hall element 3 can be three (the Hall element 3a such as shown in Fig. 1, Hall element 3b and Hall element 3c), three Hall elements 3 are located in an auxiliary tank 23 jointly, and three Hall elements 3 can be spaced apart in this auxiliary tank 23.
Certainly, the present invention is not limited thereto, multiple Hall element 3 can also be located in multiple auxiliary tank 23 (scheming this example not shown) respectively.That is, one or more Hall element 3 can be respectively equipped with in each auxiliary tank 23, three Hall elements 3 such as shown in Fig. 1 can be located in three different auxiliary tanks 23 respectively, certainly, two Hall elements 3 can also be had to be located in same auxiliary tank 23, and another one Hall element 3 can be located in other auxiliary tank 23.
In a concrete example of the present invention, multiple stator tooth 22 is uniform intervals distribution in the circumference of body 21, and that is, in the circumference of body 21, the angle between two often adjacent stator tooths 22 is identical.Thus, not only facilitate the processing and fabricating of stator core 2, and facilitate the winding of stator winding, the output performance of motor 100 can also be improved in addition.Such as in the example of fig. 1, the structure that stator core 2 comprises nine stator tooths, 22, nine stator tooths 22 is identical, and is evenly spaced apart in the circumference of body 21.
Certainly, the present invention is not limited thereto, multiple stator tooth 22 can not also distribute by uniform intervals in the circumference of body 21, and that is, the angle between two often adjacent stator tooths 22 can be different.In addition, the structure of multiple stator tooth 22 can also be incomplete same.
In a concrete example of the present invention, permanent magnet 12 is the uniform intervals distribution in the circumference of rotor core 11 of multiple and multiple permanent magnet 12, and that is, in the circumference of rotor core 11, the angle between two often adjacent permanent magnets 12 is all identical.Thus, not only facilitate the processing of rotor 1, and the output performance of motor 100 can be improved.Such as in the example of fig. 1, rotor 1 comprises the identical permanent magnet 12 of 30 structures, and 30 permanent magnets 12 are evenly spaced apart in the circumference of rotor core 11.
Certainly, the quantity of permanent magnet 12 is not limited thereto.In addition, multiple permanent magnet 12 can not also be evenly spaced apart in the circumference of rotor core 11, and that is, the angle between two often adjacent permanent magnets 12 can be different, and the structure of multiple permanent magnet 12 can also be incomplete same.
Here, it should be noted that, the kind of motor 100 is not limit.Preferably, motor 100 can be vernier motor, due to the stator tooth 22 of vernier motor being generally all formed with auxiliary tank 23, thus can directly utilize the auxiliary tank 23 on vernier motor to install Hall element 3.According to the vernier motor of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
In describing the invention, it will be appreciated that, term " " center ", " interior ", " outward ", " axis ", " radial direction ", " circumference " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (7)
1. a motor, is characterized in that, comprising:
Rotor assembly, described rotor assembly comprises casing and is located at the rotor in described casing, and described rotor comprises rotor core and is located at the permanent magnet on the internal perisporium of described rotor core;
Stator, described stator is located at the inner side of described rotor, and described stator comprises stator core, and described stator core comprises body and the spaced multiple stator tooth of circumference along described body, and the periphery wall of described stator tooth is formed with auxiliary tank; And
Hall element, described Hall element is located in described auxiliary tank.
2. motor according to claim 1, is characterized in that, the periphery wall of each described stator tooth is all formed with described auxiliary tank.
3. motor according to claim 2, is characterized in that, described Hall element is multiple, and described multiple Hall element is all located in same described auxiliary tank.
4. motor according to claim 2, is characterized in that, described Hall element is multiple, and described multiple Hall element is located in multiple described auxiliary tank respectively.
5. motor according to claim 1, is characterized in that, described multiple stator tooth is uniform intervals distribution in the circumference of described body.
6. motor according to claim 1, is characterized in that, described permanent magnet is the uniform intervals distribution in the circumference of described rotor core of multiple and described multiple permanent magnet.
7. the motor according to any one of claim 1-6, is characterized in that, described motor is vernier motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121415.9A CN104753289A (en) | 2015-03-19 | 2015-03-19 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121415.9A CN104753289A (en) | 2015-03-19 | 2015-03-19 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104753289A true CN104753289A (en) | 2015-07-01 |
Family
ID=53592535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510121415.9A Pending CN104753289A (en) | 2015-03-19 | 2015-03-19 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104753289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141100A (en) * | 2015-10-12 | 2015-12-09 | 哈尔滨工业大学 | Tooth slot structure of high-power-density permanent magnet brushless motor used for space manipulator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5877574A (en) * | 1997-01-30 | 1999-03-02 | General Electric Company | Dynamoelectric machine |
| JP2007189841A (en) * | 2006-01-13 | 2007-07-26 | Ichinomiya Denki:Kk | Brushless motor |
| CN202772735U (en) * | 2012-08-16 | 2013-03-06 | 天津雅迪实业有限公司 | Novel mounting structure for Hall sensors in electric power-assisted vehicle motor stator |
| CN103236772A (en) * | 2013-05-10 | 2013-08-07 | 哈尔滨工业大学 | Compact type permanent magnet brushless motor with equal-resistance duplex winding and redundant hall structure |
| CN104092345A (en) * | 2014-07-08 | 2014-10-08 | 顾明 | Three-phase brushless direct current motor and sine stator |
| CN204046382U (en) * | 2014-07-16 | 2014-12-24 | 江苏大学 | Mixing magnetic material fault tolerant permanent magnet vernier motor |
-
2015
- 2015-03-19 CN CN201510121415.9A patent/CN104753289A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5877574A (en) * | 1997-01-30 | 1999-03-02 | General Electric Company | Dynamoelectric machine |
| JP2007189841A (en) * | 2006-01-13 | 2007-07-26 | Ichinomiya Denki:Kk | Brushless motor |
| CN202772735U (en) * | 2012-08-16 | 2013-03-06 | 天津雅迪实业有限公司 | Novel mounting structure for Hall sensors in electric power-assisted vehicle motor stator |
| CN103236772A (en) * | 2013-05-10 | 2013-08-07 | 哈尔滨工业大学 | Compact type permanent magnet brushless motor with equal-resistance duplex winding and redundant hall structure |
| CN104092345A (en) * | 2014-07-08 | 2014-10-08 | 顾明 | Three-phase brushless direct current motor and sine stator |
| CN204046382U (en) * | 2014-07-16 | 2014-12-24 | 江苏大学 | Mixing magnetic material fault tolerant permanent magnet vernier motor |
Non-Patent Citations (1)
| Title |
|---|
| 谭建成: "《永磁无刷直流电机技术》", 31 March 2011 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141100A (en) * | 2015-10-12 | 2015-12-09 | 哈尔滨工业大学 | Tooth slot structure of high-power-density permanent magnet brushless motor used for space manipulator |
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Application publication date: 20150701 |
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| RJ01 | Rejection of invention patent application after publication |