CN204046388U - A kind of seven phase winding permanent magnet synchronous brushless DC motors - Google Patents
A kind of seven phase winding permanent magnet synchronous brushless DC motors Download PDFInfo
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- CN204046388U CN204046388U CN201420435760.0U CN201420435760U CN204046388U CN 204046388 U CN204046388 U CN 204046388U CN 201420435760 U CN201420435760 U CN 201420435760U CN 204046388 U CN204046388 U CN 204046388U
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- 238000004804 winding Methods 0.000 title claims abstract description 41
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 210000000515 tooth Anatomy 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a kind of seven phase winding permanent magnet synchronous brushless DC motors, comprise the rotor that a stator and post permanent magnet, the winding number of phases is the multiple of seven, and adopt six phase dutys, have in the stock utilization of the commutation of winding, stator, permanent magnet and electric current, control unit relative to traditional three-phase winding motor the utility model and significantly promote, the stock utilization of the commutation of the armature of traditional three-phase windings permagnetic synchronous motor, stator, permanent magnet and electric current, control unit is significantly promoted to 85.7% from 66.7%, and enhancing rate is 28.5%.
Description
Technical field
The utility model relates to permanent magnet synchronous electric machine technology, specifically a kind of seven phase winding permanent magnet synchronous brushless DC motors.
Background technology
The operation principle of traditional three-phase windings permanent magnet synchronous brushless DC motor is three-phase windings two-phase duty, a phase winding is had to be in electric current commutation wait all the time in three-phase windings, because the stock utilization of the commutation of the winding of three-phase windings permanent magnet synchronous brushless DC motor, stator, permanent magnet and electric current, control device only has 66.7%, therefore there is following inferior position: 1. the stock utilization due to motor and electric current commutation, control device is lower, causes precious mineral resources waste larger; The power density of 2 motors is less; 3. the starting torque of motor is lower; 4. the operating efficiency of motor is lower; 5. cannot normally work after motor phase failure; 6. the volume and weight of motor is larger; 7. the cost performance of motor is lower; 8. the operating noise of motor is larger; 9. the job stability of motor is poor.
Utility model content
The purpose of this utility model is to provide a kind of seven phase winding permanent magnet synchronous brushless DC motors and winding current commutation, control method, the winding number of phases is the multiple of seven, and adopt six phase dutys, have in the stock utilization of the commutation of winding, stator, permanent magnet and electric current, control unit relative to traditional three-phase winding motor the utility model and significantly promote, the stock utilization of the commutation of the armature of traditional three-phase windings permagnetic synchronous motor, stator, permanent magnet and electric current, control unit is significantly promoted to 85.7% from 66.7%, and enhancing rate is 28.5%.
For achieving the above object by the following technical solutions:
A kind of seven phase winding permanent magnet synchronous brushless DC motors, comprise: a stator and one post the rotor of permanent magnet, the stator motor be fixed on package header is the synchronous brshless DC motor of internal rotor permanent-magnetic, the stator motor be fixed on axle is the synchronous brushless direct current permanent magnet motor of external rotor, it is characterized in that: described stator adopts the multiple groove of 7 grooves or 7, and adopt the coiling of seven phase windings, rotor permanent magnet position transducer can be provided with in the outer rim of stator tooth, seven described phase windings and rotor permanent magnet position transducer all commutate with winding current, control device carries out circuit connection.
Described stator is 7 wire casings and 7 stator tooths, described rotor posts 6 magnetic permanent magnet pole corresponding with it.
Described stator is 56 wire casings and 56 each stator tooths, described rotor adopts 52 permanent magnet poles corresponding with it.
The advantage that utility model is brought is:
1. the increase of the motor winding work number of phases makes the utilance of electromagnetic material, current control device higher, as: adopt stator to be that the winding of traditional three-phase winding motor, stator, permanent magnet and electric current commutate by 7 wire casings, 6 permanent magnet poles, the stock utilization of control device is significantly promoted to 85.7% from 66.7%, enhancing rate is 28.5%, has significantly saved the mineral resources of various preciousness;
2. the power density of motor significantly promotes;
3. the starting torque of motor significantly promotes;
4. the operating efficiency of motor is higher, and energy-saving effect is remarkable;
Even if 5. motor winding also can carry out work close to normal operating mode after lacking one to two-phase;
6. the volume and weight of motor significantly reduces;
7. the cost performance of motor significantly promotes;
8. the operating noise of motor is lower;
9. the job stability of motor significantly promotes.
Accompanying drawing explanation
Fig. 1-14 is the commutation sequential chart of 7 wire casings, 6 permanent magnet pole motors;
Figure 15-28 is the commutation sequential chart of 56 wire casings, 52 permanent magnet pole motors.
Embodiment
The commutation sequential that Fig. 1-14 is depicted as 7 wire casings of the present utility model, 6 permanent magnet pole seven phase permanent-magnet synchronous brushless electric machines is: the position signalling level (corresponding magnetic position sensor is A, B, C, D, E, F, G) of permanent magnet is followed successively by: 0100101,0101101,0101001,0101011,0101010,1101010,1001010,1011010,1010010,1010110,1010100,1010101,0010101,0110101, totally 14 beats; The input current direction of its seven windings (A, B, C, D, E, F, G) is followed successively by: positive and negative positive and negative nothing, without negative positive and negative just, negative without positive and negative just, negative just without negative just positive and negative, negative positive and negative in just positive and negative, negative positive and negative just without just bearing, negative positive and negative nothing just, negative positive and negative just without, without positive and negative positive and negative, just without negative positive and negative, positive and negative in positive and negative, positive and negative just without negative positive and negative, positive and negative in positive and negative, positive and negative just without negative, totally 14 commutation sequence.
The commutation sequential that Figure 15-28 is depicted as 56 wire casings of the present utility model, 52 permanent magnet pole seven phase permanent-magnet synchronous brushless electric machines is: the position signalling level (corresponding magnetic position sensor is A, B, C, D, E, F, G) of permanent magnet is followed successively by: 0111111,0011111,0001111,000
0111,0000011,0000001,0000000,1000000,1100000,1110000,1111000,111
1100,1111110,1111111, totally 14 beats; The input current direction of its seven windings (A, B, C, D, E, F, G) is followed successively by: negative positive and negative just without negative just, negative positive and negative nothing just, bear positive and negative just without, without positive and negative positive and negative, just without negative positive and negative, positive and negative in positive and negative, positive and negative just without negative positive and negative, positive and negative in positive and negative, positive and negative just without negative, positive and negative positive and negative nothing, without negative positive and negative just, just without positive and negative just, positive and negative nothing is born just positive and negative, negative positive and negative in just positive and negative, totally 14 commutation sequence.
The utility model is by seven phase winding six phase dutys, and the stock utilization of the commutation of the winding of motor, stator, permanent magnet and electric current, control device significantly promoted, the advantage that therefore the utility model brings is:
1. due to seven phase motors and electric current commutation, control device stock utilization higher, the stock utilization of the winding of traditional three-phase windings permanent magnet synchronous DC motor, stator, permanent magnet, electric current commutation, control device is significantly promoted to 85.7% from 66.7%, enhancing rate is 28.5%, has significantly saved the mineral resources of various preciousness;
2. the power density of motor significantly promotes;
3. the starting torque of motor significantly promotes;
4. the operating efficiency of motor is higher, and energy-saving effect is remarkable;
Even if 5. motor winding also can carry out work close to normal operating mode after lacking one to two-phase;
6. the volume and weight of motor significantly reduces;
7. the cost performance of motor significantly promotes;
8. the operating noise of motor is lower;
9. the job stability of motor significantly promotes.
Claims (3)
1. a phase winding permanent magnet synchronous brushless DC motor, comprise the rotor that a stator and post permanent magnet, it is characterized in that: described stator adopts the multiple groove of 7 grooves or 7, and adopt the coiling of seven phase windings, the outer rim of stator tooth pole can be provided with rotor-position sensor, seven described phase windings and rotor-position sensor all commutate with the electric current of winding, control device is electrically connected.
2. a kind of seven phase winding permanent magnet synchronous brushless DC motors as claimed in claim 1, is characterized in that: described stator is 7 wire casings and 7 stator tooths, and described rotor adopts 6 permanent magnet poles.
3. a kind of seven phase winding permanent magnet synchronous brushless DC motors as claimed in claim 1, is characterized in that: described stator is 56 wire casings and 56 stator tooths, described rotor adopt 52 permanent magnet poles corresponding with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435760.0U CN204046388U (en) | 2014-08-05 | 2014-08-05 | A kind of seven phase winding permanent magnet synchronous brushless DC motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435760.0U CN204046388U (en) | 2014-08-05 | 2014-08-05 | A kind of seven phase winding permanent magnet synchronous brushless DC motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046388U true CN204046388U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420435760.0U Expired - Fee Related CN204046388U (en) | 2014-08-05 | 2014-08-05 | A kind of seven phase winding permanent magnet synchronous brushless DC motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322748A (en) * | 2014-08-05 | 2016-02-10 | 章昭晖 | Seven-phase winding permanent magnet synchronous brushless direct current motor and control method therefor |
-
2014
- 2014-08-05 CN CN201420435760.0U patent/CN204046388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322748A (en) * | 2014-08-05 | 2016-02-10 | 章昭晖 | Seven-phase winding permanent magnet synchronous brushless direct current motor and control method therefor |
| CN105322748B (en) * | 2014-08-05 | 2017-10-10 | 章昭晖 | A kind of seven phase winding permanent magnet synchronous brushless DC motors and its control method |
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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 |
Granted publication date: 20141224 |