CN202034880U - Two-phase differential step brushless direct current motor - Google Patents
Two-phase differential step brushless direct current motor Download PDFInfo
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- CN202034880U CN202034880U CN2011200245797U CN201120024579U CN202034880U CN 202034880 U CN202034880 U CN 202034880U CN 2011200245797 U CN2011200245797 U CN 2011200245797U CN 201120024579 U CN201120024579 U CN 201120024579U CN 202034880 U CN202034880 U CN 202034880U
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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
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Abstract
The utility model relates to a two-phase differential step brushless direct current motor, which belongs to the technical field of electric bicycles. Stator iron core windings are divided into A-phase windings and B-phase windings, Hall elements a and Hall elements b are respectively arranged between teeth of the A-phase windings and the B-phase windings, the windings of the stator iron core are uniformly divided into four groups, each group has a distance of half a differential step, the number of magnetic steels of the rotor is obtained through adding two on the number of the windings of the stator iron core, the A-phase windings and the B-phase windings are wound on the four groups of windings in a crossed way, one phase realizes the positive and negative alternate electrification along with the magnetic field positions, the other phase lags a quarter beat for carrying out positive and negative alternate electrification, and torques are overlapped. The two-phase differential step brushless direct current motor has the beneficial effects that under the conditions of the stator, coils and the magnetic steels in the same size, the power is 1.7 times of that of a three-phase brushless motor, the torque pulsation is small, the B phase lags a quarter beat for realizing the positive and negative alternate electrification when the A phase carries out positive and negative alternate electrification along with the magnetic field positions, the torques of the two phases of windings are overlapped, and the torque is twice of that of a single-phase winding, and simultaneously, the problem of large torque pulse of a two-phase motor is solved.
Description
Technical field
The utility model relates to two and differs the step brshless DC motor, belongs to the vehicle technology field.
Background technology
At present, electric motor car adopts three-phase brushless dc motor, and torque pulse is little, the two-phase phase no power of switching on during its work, and torque is single-phase torque
Doubly.And two-phase direct current machine two-phase is switched on simultaneously, and torque is big, and its torque pulse is big.
Summary of the invention
In order to overcome the deficiency of prior art structure, the utility model provides two to differ the step brshless DC motor.
The technical scheme that its technical problem that solves the utility model adopts is: comprise stator core, the magnetic hub, Hall b element, Hall a element, magnet steel, the stator core winding is divided into A phase winding and B phase winding, and Hall a element and Hall b element are installed in respectively between the tooth of A phase winding and B phase winding, exports A phase and the residing magnetic field position signal of B phase winding respectively.
The A phase winding is divided into A1 and A2, and the B phase winding divides B1 and B2, and difference is opened half winding position (difference step) cross arrangement between A1, A2, four groups of coils of B1, B2, and the number of windings that every group of coil accounts for is A1=A2=B1=B2=n.
Rotor is made up of magnetic hub and magnet steel.
The winding of stator core is for dividing equally 4 groups, the distance in half difference step of interval between each group.The magnet steel quantity of rotor adds 2 for the stator core number of windings, and A phase winding and B phase winding intersect on 4 groups of windings, the magnetic field position positive and negative alternate energising that accompanies, and another lags behind mutually and 1/4 claps positive and negative alternate energising, the torque stack.
The beneficial effects of the utility model are: under the situation of equal volume stator core, coil and magnet steel, its power is 1.7 times of three-phase brushless motor, torque pulsation is little, when accompany magnetic field position positive and negative alternate energising of A, B lags behind mutually and 1/4 claps the positive and negative alternate energising, the stack of two-phase winding torque, its torque is 2 times of single-phase winding, has overcome the big problem of torque pulse of two-phase induction motor simultaneously again.
Description of drawings
Fig. 1 is a stator core structure schematic diagram of the present utility model;
Fig. 2 is a rotor structure schematic diagram of the present utility model;
Fig. 3 is a fundamental diagram of the present utility model;
Fig. 4 is a fundamental diagram of the present utility model;
Fig. 5 is a fundamental diagram of the present utility model;
Fig. 6 is a fundamental diagram of the present utility model.
Embodiment
Embodiment 1: as shown in Figure 1, stator core 1 winding is divided into A phase winding and B phase winding, A phase winding A1, A2 are divided into a1～a2n 2n coil altogether, B phase winding B1, B2 are divided into b1～b2n 2n coil coil winding mode altogether, when n was odd number, winding mode was a1 (just), a2 (instead), a3 (just), a4 (instead) ... an (just), an+1 (instead), an+2 (just) ... a2n (instead); When n was even number, winding mode was a1 (just), a2 (instead), a3 (just), a4 (instead) ... an (instead), an+1 (instead), an+2 (instead) ... a2n (just); Adjacent coil-winding is opposite; B phase winding situation is identical with the A phase winding, and Hall a element 4 and Hall b element 3 are installed between the teeth groove of A phase winding and B phase winding, exports A phase and the residing magnetic field position signal of B phase winding respectively.
Embodiment 2: as shown in Figure 2, number of magnetic poles is 4n+2, and N, S are spaced.
Embodiment 3: shown in Fig. 3-6, Fig. 3 to Fig. 4 position, Hall a element 4 magnetic fields of living in are the S utmost point, and the energising of A phase winding forward produces magnetic field, a1 (S), a2 (N) ... promote rotor and clockwise rotate, Hall b element 3 magnetic fields of living in are the N utmost point, and the energising of B phase winding forward produces magnetic field as shown in the figure, b1 (S), b2 (N) ... promote rotor and clockwise rotate, rotor is made up of magnetic hub 2 and magnet steel 5.
Fig. 4 to Fig. 5 position, Hall a element 4 magnetic fields of living in are the S utmost point, the A phase winding produces magnetic field, a1 (S), a2 (N) ... promote rotor and clockwise rotate, Hall b element 3 is crossed magnetic field 0 point, and magnetic field of living in transfers the S utmost point to, and the B phase winding is oppositely switched on, produce magnetic field, b1 (N), b2 (S) ... promote rotor and clockwise rotate.
Fig. 5 to Fig. 6 position, Hall a element 4 is crossed magnetic field 0 point, magnetic field of living in transfers the N utmost point to, the A phase winding is oppositely switched on, and produces magnetic field, a1 (N), a2 (S) ... promote rotor and clockwise rotate, Hall b element 3 magnetic fields of living in are the S utmost point, the B phase winding is oppositely switched on, and produces magnetic field, b1 (N), b2 (S) ... promote rotor and clockwise rotate.
Fig. 6 to Fig. 3 position, Hall a element 4 magnetic fields of living in are the N utmost point, the A phase winding is oppositely switched on, and produces magnetic field, a1 (N), a2 (S) ... promote rotor and clockwise rotate, Hall b element 3 is crossed magnetic field 0 point, magnetic field of living in transfers the N utmost point to, and the energising of B phase winding forward produces magnetic field as shown in the figure, b1 (S), b2 (N) ... promote rotor and clockwise rotate enter the next round circulation.
Claims (3)
1. two differ the step brshless DC motor, comprise stator core, the magnetic hub, Hall b element, Hall a element, magnet steel, it is characterized in that: the stator core winding is divided into A phase winding and B phase winding, and Hall a element and Hall b element are installed in respectively between the tooth of A phase winding and B phase winding.
2. according to claim 1 two differ the step brshless DC motor, it is characterized in that: rotor is made up of magnetic hub and magnet steel.
3. according to claim 1 two differ the step brshless DC motor, it is characterized in that: the winding of stator core is for dividing equally 4 groups, the distance in half difference step of interval between each group, the magnet steel quantity of rotor adds 2 for the stator core number of windings, and A phase winding and B phase winding intersect on 4 groups of windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200245797U CN202034880U (en) | 2011-01-25 | 2011-01-25 | Two-phase differential step brushless direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200245797U CN202034880U (en) | 2011-01-25 | 2011-01-25 | Two-phase differential step brushless direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034880U true CN202034880U (en) | 2011-11-09 |
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ID=44897164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200245797U Expired - Fee Related CN202034880U (en) | 2011-01-25 | 2011-01-25 | Two-phase differential step brushless direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202034880U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934508A (en) * | 2020-08-11 | 2020-11-13 | 哈尔滨工业大学 | Radial magnetic field coreless permanent magnet synchronous motor |
| CN111934506A (en) * | 2020-08-11 | 2020-11-13 | 哈尔滨工业大学 | Non-overlapping winding axial magnetic field permanent magnet synchronous motor |
| CN111934509A (en) * | 2020-07-02 | 2020-11-13 | 陈志涛 | Disc isopgnetic motor |
-
2011
- 2011-01-25 CN CN2011200245797U patent/CN202034880U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934509A (en) * | 2020-07-02 | 2020-11-13 | 陈志涛 | Disc isopgnetic motor |
| CN111934508A (en) * | 2020-08-11 | 2020-11-13 | 哈尔滨工业大学 | Radial magnetic field coreless permanent magnet synchronous motor |
| CN111934506A (en) * | 2020-08-11 | 2020-11-13 | 哈尔滨工业大学 | Non-overlapping winding axial magnetic field permanent magnet synchronous motor |
| CN111934508B (en) * | 2020-08-11 | 2022-11-29 | 哈尔滨工业大学 | Radial magnetic field coreless permanent magnet synchronous motor |
| CN111934506B (en) * | 2020-08-11 | 2023-01-13 | 哈尔滨工业大学 | Non-overlapping winding axial magnetic field permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20130125 |