CN204497935U - High power density composite excitation brushless claw pole motor - Google Patents
High power density composite excitation brushless claw pole motor Download PDFInfo
- Publication number
- CN204497935U CN204497935U CN201520239453.XU CN201520239453U CN204497935U CN 204497935 U CN204497935 U CN 204497935U CN 201520239453 U CN201520239453 U CN 201520239453U CN 204497935 U CN204497935 U CN 204497935U
- Authority
- CN
- China
- Prior art keywords
- pole
- pawl
- pawl pole
- permanent magnet
- excitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005284 excitation Effects 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 6
- 210000000078 claw Anatomy 0.000 title claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 8
- 230000004907 flux Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a kind of high power density composite excitation brushless claw pole motor, pawl pole rotor is two, they snap together mutually, and fixed by the rotating shaft through its center, each pawl pole rotor has multiple pawl pole, the pole-face width of each pawl pole is all identical with thickness, space between the extremely epitrochanterian pawl pole of arbitrary pawl and the extremely epitrochanterian pawl pole be adjacent of another pawl is embedded with rectangular permanent magnet, between the pole palm of two pawl pole rotors, clamping connection has circular permanent magnet, and rotating shaft is through the center of circular permanent magnet.The utility model adopts brushless structure, improves the reliability of system, adopts composite excitation, can regulate air-gap field flexibly, reduce excitation capacity, improve the efficiency of motor, energy savings.
Description
Technical field
The utility model relates to a kind of mixed excitation claw-pole brushless electric machine.
Background technology
Electricity excitation claw-pole motor is owing to can regulate DC excitation easily, so have the advantage that magneto do not reach in flux control, but it exists brush-slip ring structure, and reliability is poor, excitation loss is larger.Magneto also has the advantage of a series of uniqueness owing to eliminating brush, slip-ring device, as high in efficiency, structure is simple, volume is little, but the air-gap field of magneto is determined by magnet steel and magnetic circuit magnetic conductance, is in operation and almost keeps constant, regulates difficulty.
Summary of the invention
For solving prior art Problems existing, the utility model provides a kind of high power density composite excitation brushless claw pole motor, and its technical scheme taked is:
Comprise casing, be located at the end cap at casing two ends, and the excitation support be located in casing, stator and pawl pole rotor, stator is socketed with magnetic shield, magnetic shield is fixed on the inwall of casing, pawl pole rotor is two, they snap together mutually, and fixed by the rotating shaft through its center, each pawl pole rotor has multiple pawl pole, the pole-face width of each pawl pole is all identical with thickness, space between the extremely epitrochanterian pawl pole of arbitrary pawl and the extremely epitrochanterian pawl pole be adjacent of another pawl is embedded with rectangular permanent magnet, excitation support is two, be separately fixed on end cap inwall, each excitation support is fixed with the excitation winding that is cascaded respectively, between the pole palm of two pawl pole rotors, clamping connection has circular permanent magnet, rotating shaft is through the center of circular permanent magnet.
The excitation mode that the utility model adopts permanent magnetism and electric excitation to combine, jointly produces magnetic field by permanent magnet and excitation winding, both can overcome the nonadjustable shortcoming of permanent magnet generator magnetic flux, also can reduce the capacity of excitation winding.Increasing exerting oneself of air gap flux density and motor when not increasing exciting current, improve the efficiency of motor, improving the low speed output characteristic of motor.In addition, adopt brushless structure, improve the reliability of system cloud gray model.
Accompanying drawing explanation
Fig. 1 is structure half sectional view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this motor comprises casing 1, is located at the end cap 2 at casing 1 two ends and is located at excitation support 3, stator 4 and the pawl pole rotor in casing 1, and end cap 2 and casing 1 divide as a part for motor magnetic circuit.Stator 4 is socketed with magnetic shield 6, and magnetic shield 6 is fixed on the inwall of casing 1, and pawl pole rotor is two, they snap together mutually, and fixed by the rotating shaft 7 through its center, each pawl pole rotor has multiple pawl pole 8, and the pole-face width of each pawl pole 8 is all identical with thickness.Space between the extremely epitrochanterian pawl pole 8 of arbitrary pawl and the extremely epitrochanterian pawl pole 8 be adjacent of another pawl is embedded with rectangular permanent magnet, permanent magnet adopts cutting orientation magnetizing, its magnetic field and electricity excitation magnetic field form parallel relationship, excitation support 3 is two, be separately fixed on end cap 2 inwall, each excitation support 3 is fixed with the excitation winding 9 that is cascaded respectively, the pole palm 5 of two pawl pole rotors in pawl pole axially close to centre position, between them, clamping connection has circular permanent magnet 10, and rotating shaft 7 is through the center of circular permanent magnet 10.
This motor has two magnetic potential sources, and be respectively permanent magnet and excitation winding, wherein permanent magnet provides stationary magnetic field, plays main field; The magnetic field that excitation winding produces, by changing the size and Orientation of electric current, plays the effect of magnetic assist or weak magnetic to permanent magnetic field.When this motor runs, by changing the size and Orientation of excitation winding electric current, the intensity of air-gap field can be changed.
Claims (1)
1. a high power density composite excitation brushless claw pole motor, comprise casing (1), be located at the end cap (2) at casing (1) two ends, and the excitation support (3) be located in casing (1), stator (4) and pawl pole rotor, it is characterized in that: stator (4) is socketed with magnetic shield (6), magnetic shield (6) is fixed on the inwall of casing (1), pawl pole rotor is two, they snap together mutually, and fixed by the rotating shaft (7) through its center, each pawl pole rotor has multiple pawl pole (8), the pole-face width of each pawl pole (8) is all identical with thickness, space between the extremely epitrochanterian pawl pole of arbitrary pawl (8) and the extremely epitrochanterian pawl pole (8) be adjacent of another pawl is embedded with rectangular permanent magnet, excitation support (3) is two, be separately fixed on end cap (2) inwall, each excitation support (3) is fixed with the excitation winding that is cascaded (9) respectively, between the pole palm (5) of two pawl pole rotors, clamping connection has circular permanent magnet (10), rotating shaft (7) is through the center of circular permanent magnet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520239453.XU CN204497935U (en) | 2015-04-21 | 2015-04-21 | High power density composite excitation brushless claw pole motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520239453.XU CN204497935U (en) | 2015-04-21 | 2015-04-21 | High power density composite excitation brushless claw pole motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204497935U true CN204497935U (en) | 2015-07-22 |
Family
ID=53577218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520239453.XU Expired - Fee Related CN204497935U (en) | 2015-04-21 | 2015-04-21 | High power density composite excitation brushless claw pole motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204497935U (en) |
-
2015
- 2015-04-21 CN CN201520239453.XU patent/CN204497935U/en not_active Expired - Fee Related
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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: 20150722 Termination date: 20170421 |