CN2814774Y - Mixed exciting brushless jaw pole motor - Google Patents
Mixed exciting brushless jaw pole motor Download PDFInfo
- Publication number
- CN2814774Y CN2814774Y CN 200520073446 CN200520073446U CN2814774Y CN 2814774 Y CN2814774 Y CN 2814774Y CN 200520073446 CN200520073446 CN 200520073446 CN 200520073446 U CN200520073446 U CN 200520073446U CN 2814774 Y CN2814774 Y CN 2814774Y
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- CN
- China
- Prior art keywords
- motor
- claw
- rotor
- utmost point
- pole
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- Expired - Lifetime
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Abstract
The utility model provides a mixed excitation brushless claw pole motor, which relates to the fields of high performance and direct drive. An outer stator of the motor is composed of an iron core (2) and an armature winding (3), an inner stator is composed of an annular excitation winding (8) and a magnetic yoke bracket (10) of the excitation winding, a motor rotor is composed of claw poles (4), a rotor magnetic yoke (9), a shaft (5), etc., a layer of thin permanent magnetism sheet (11) is inlaid on the pole face of the claw pole (4) of each rotor, and a permanent magnetism sheet (12) is inlaid between every two adjacent claw poles (4). The thickness of each claw pole (4) is the same, the pole face of the claw pole (4) forms a trapezoidal shape, every two adjacent and staggered arrangement claw poles (4) are fixed on a stainless steel thin circular plate with a nonmagnetic conducting inner circle through welding spots to form a whole, and the rotor is sealed by a nonmagnetic conducting stainless steel cylinder. The motor is a mixed excitation brushless claw pole motor which has the advantages of high power density, high efficiency, high starting torque and wider speed regulating range.
Description
Technical field
The utility model relates to a kind of improved motor, the hybrid-exciting brush-free claw-pole motor in particularly a kind of high-performance and direct driving field.
Background technology
Claw-pole motor has been the preferred mode of automobile, aerogenerator because it is simple in structure, with low cost, reliable since emerging always.In decades, also carried out number of research projects for claw-pole motor both at home and abroad.But great majority are the claw-pole motors at versions such as simple coil magnetization or simple permanent magnet excitations, and the overwhelming majority is to improvement of motor performance etc. at the variation of parameter own and physical dimension, just change the invention research that the motor excitation mode improves motor runnability and operating characteristic, also comparatively rare at present.Because the leakage flux problem of the common claw-pole motor rotor claw utmost point is more serious, air-gap flux can't free adjustment in addition, and therefore, its power density and efficient are lower, and detent torque is less than normal, and speed adjustable range is limited.
Summary of the invention
Technical problem: technical problem to be solved in the utility model is: provide a kind of improved, high power density, high efficiency, high start torque and speed adjustable range comparatively broad hybrid-exciting brush-free claw-pole motor.
Technical scheme: for interelectrode magnetic leakage that compensates claw-pole motor and the main flux that improves motor, under the situation that does not change the claw-pole motor original structure, this motor constitutes external stator by iron core and armature winding, constitute internal stator by circular excitation winding and excitation winding yoke bracket, constitute rotor by the pawl utmost point, rotor yoke and axle etc., on each rotor claw utmost point pole-face, be inlaid with the thin permanent magnetism sheet of one deck, be inlaid with the permanent magnetism sheet between each adjacent pawl utmost point.Each pawl utmost point thickness is identical, and the polar front shape of the pawl utmost point is trapezoidal, and each adjacent and staggered pawl utmost point is fixed in one by solder joint and forms an integral body on the thin plectane of the non-magnetic stainless steel of circle, and rotor encapsulates with non-magnetic stainless steel cylinder.Described thin permanent magnetism sheet, permanent magnetism sheet are selected Nd-Fe-Bo permanent magnet material for use.
Technique effect: between the pawl utmost point, place the permanent magnetism sheet, in fact the active polar surface that has increased the pawl utmost point is long-pending, both can compensate former claw-pole motor effectively because the negative effect that leakage field brought between the pawl utmost point, improve the air gap flux density of motor, can improve main flux effectively again, thereby and the permanent magnetism sheet acting in conjunction of inlaying on the pawl utmost point pole-face, improve the magnetic energy product of motor, improve the main flux of motor greatly, can obviously improve power of electric motor density, efficient, improve detent torque, expanding governing.
The external stator of this motor and the stator of common electric machine are similar, are embedded with heterogeneous symmetric winding in the groove, are placed with annular DC excitation winding on electric motor internal stator.Excitation winding is fixed on the electric motor end cap by the yoke bracket of magnetic conduction.Because the DC excitation winding places in the formed zone, inside and outside unit by the pawl utmost point, space availability ratio height, compact conformation.
Permanent magnet flux between the magnetic flux that exciting current produced and the pawl utmost point is relation in parallel on magnetic circuit, they are series relationship with pawl utmost point pole-face permanent magnet flux on magnetic circuit simultaneously.By the amplitude of control exciting current and the adjusting that direction realizes air gap flux density, thereby can realize the following permanent torque of motor base speed, the above output-constant operation of base speed.
Description of drawings
Fig. 1 is the hybrid-exciting brush-free claw-pole motor profile;
Fig. 2 is the hybrid-exciting brush-free claw-pole motor structural representation;
Fig. 3 is hybrid-exciting brush-free claw-pole motor central cross-section figure.
Motor outer wall 1, iron core 2, armature winding 3, the pawl utmost point 4, axle 5, motor loam cake 6, bearing 7, circular excitation winding 8, rotor yoke 9, excitation winding yoke bracket 10, thin permanent magnetism sheet 11, permanent magnetism sheet 12 are arranged among the above figure.
Embodiment
As shown in Figure 1, the physical model of this hybrid-exciting brush-free claw-pole motor mainly is made up of following components: stator, the rotor claw utmost point 4, rotor yoke 9, axle 5, thin permanent magnetism sheet 11, permanent magnetism sheet 12, armature winding 3 and excitation winding 8.Stator comprises external stator and internal stator two parts, and external stator comprises iron core 2 and armature winding 3, and internal stator is made of magnet exciting coil 8 and excitation winding yoke bracket 10; Rotor portion comprises permanent magnetism sheet 12 between the adjacent and staggered pawl utmost point 4, the thin permanent magnetism sheet 11 of the pawl utmost point 4 pole-faces and the pawl utmost point 4.Each the pawl utmost point 4 consistency of thickness, the pawl utmost point 4 polar front shapes are trapezoidal.In being fixed on by solder joint, each pawl utmost point 4 forms an integral body on the thin annulus of the non-magnetic stainless steel of circle, in addition, rotor encapsulates with non-magnetic stainless steel cylinder, and robustness and reliability during with enhancing rotor high-speed rotary work guarantee the even running of motor in the process of running up.
In addition, consider, select to have the material of the Nd-Fe-Bo permanent magnet material of higher HCJ as the thin permanent magnetism sheet 11 of motor, permanent magnetism sheet 12 from improving motor gas-gap magnetic thermal stability close and magnet steel.
Claims (3)
1, a kind of hybrid-exciting brush-free claw-pole motor, it is characterized in that: this motor constitutes external stator by iron core (2) and armature winding (3), constitute internal stator by circular excitation winding (8) and excitation winding yoke bracket (10), constitute rotor by the pawl utmost point (4), rotor yoke (9) and axle (5) etc., on each the rotor claw utmost point (4) pole-face, be inlaid with the thin permanent magnetism sheet (11) of one deck, be inlaid with permanent magnetism sheet (12) between each adjacent pawl utmost point (4).
2, hybrid-exciting brush-free claw-pole motor according to claim 1, it is characterized in that: each the pawl utmost point (4) thickness is identical, the polar front shape of the pawl utmost point (4) is trapezoidal, each adjacent and staggered pawl utmost point (4) is fixed in one by solder joint and forms an integral body on the thin plectane of the non-magnetic stainless steel of circle, and rotor encapsulates with non-magnetic stainless steel cylinder.
3,, it is characterized in that described thin permanent magnetism sheet (11), permanent magnetism sheet (12) select Nd-Fe-Bo permanent magnet material for use according to right 1 described hybrid-exciting brush-free claw-pole motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073446 CN2814774Y (en) | 2005-07-08 | 2005-07-08 | Mixed exciting brushless jaw pole motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073446 CN2814774Y (en) | 2005-07-08 | 2005-07-08 | Mixed exciting brushless jaw pole motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814774Y true CN2814774Y (en) | 2006-09-06 |
Family
ID=36949860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073446 Expired - Lifetime CN2814774Y (en) | 2005-07-08 | 2005-07-08 | Mixed exciting brushless jaw pole motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814774Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327594C (en) * | 2005-07-08 | 2007-07-18 | 东南大学 | Hybrid-exciting brush-free claw-pole motor |
| CN102904395A (en) * | 2012-10-25 | 2013-01-30 | 合肥工业大学 | Optimized design method of claw poles of automotive generator rotor |
| CN103326520A (en) * | 2013-06-14 | 2013-09-25 | 合肥工业大学 | Optimum design method of rotor claw pole of automobile generator |
-
2005
- 2005-07-08 CN CN 200520073446 patent/CN2814774Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327594C (en) * | 2005-07-08 | 2007-07-18 | 东南大学 | Hybrid-exciting brush-free claw-pole motor |
| CN102904395A (en) * | 2012-10-25 | 2013-01-30 | 合肥工业大学 | Optimized design method of claw poles of automotive generator rotor |
| CN102904395B (en) * | 2012-10-25 | 2014-10-08 | 合肥工业大学 | Optimized design method of claw poles of automotive generator rotor |
| CN103326520A (en) * | 2013-06-14 | 2013-09-25 | 合肥工业大学 | Optimum design method of rotor claw pole of automobile generator |
| CN103326520B (en) * | 2013-06-14 | 2015-03-25 | 合肥工业大学 | Optimum design method of rotor claw pole of automobile generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050708 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |