CN202798172U - Mixed excitation claw pole motor composite magnetic steel - Google Patents
Mixed excitation claw pole motor composite magnetic steel Download PDFInfo
- Publication number
- CN202798172U CN202798172U CN201220470740.8U CN201220470740U CN202798172U CN 202798172 U CN202798172 U CN 202798172U CN 201220470740 U CN201220470740 U CN 201220470740U CN 202798172 U CN202798172 U CN 202798172U
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- permanent magnet
- magnetic steel
- mixed excitation
- composite magnetic
- pole motor
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Abstract
The utility model relates to mixed excitation claw pole motor composite magnetic steel and belongs to the technical field of mixed excitation claw pole motors. The mixed excitation claw pole motor composite magnetic steel comprises a soft magnet magnetic pole cushion block (1), a first permanent magnet (2a) and a second permanent magnet (2b) which are fixedly connected together, and the first permanent magnet (2a) and the second permanent magnet (2b) are respectively fixed on two sides of the magnetic pole cushion block (1). The mixed excitation claw pole motor composite magnetic steel replaces magnetic steel of overall permanent magnet material in the prior art, not only achieves original mixed excitation, reduces magnetic flux leakage among claw poles, improves efficiency of a motor, but also saves rare earth resources and cost. Compared with original neodymium iron boron permanent magnets, half of cost of each composite magnetic steel block is saved, and the mixed excitation claw pole motor composite magnetic steel is simple and convenient in manufacture, durable, economic and practical.
Description
Technical field
The utility model relates to the mixed excitation claw-pole motor technical field, relates in particular to the mixed excitation claw-pole motor magnet steel.
Background technology
Traditional claw-pole motor, the pawl interelectrode magnetic leakage is large, air-gap flux can't free adjustment, and power density efficient is lower, and starting torque is less than normal, speed adjustable range is limited, in order to improve the claw-pole motor performance, the claw-pole motor of prior art all adds permanent magnet at the pawl interpolar at present, realization is combined by electric excitation and permanent magnet and carries out composite excitation, have can regulate, the advantage of controlling magnetic field.In order to satisfy performance requirement and installation requirement, permanent magnet generally adopts high performance NdFeB material.Because the short supply state of rare earth resources makes the Application and Development of magnetic material sink into larger predicament, because the permanent magnet material price is growing, the cost of every motor permanent magnet material has accounted for about the 20%-35% of total cost, for manufacturer brings certain puzzlement.
Summary of the invention
The purpose of this utility model is, for the too high problem of the production cost of above-mentioned mixed excitation claw-pole motor permanent magnet, in order to satisfy the requirement of motor composite excitation, provides a kind of mixed excitation claw-pole motor composite magnetic steel.
The technical solution adopted in the utility model is:
A kind of mixed excitation claw-pole motor composite magnetic steel, it is characterized in that, comprise a soft magnetic bodies magnetic pole cushion block that is fixed together, and two permanent magnet permanent magnet first and permanent magnet second, described permanent magnet first and permanent magnet second are separately fixed at the both sides of magnetic pole cushion block.
Described mixed excitation claw-pole motor composite magnetic steel is characterized in that, described permanent magnet first and permanent magnet second are separately fixed at magnetic pole cushion block both sides by glue.
Described mixed excitation claw-pole motor composite magnetic steel is characterized in that, described permanent magnet first and permanent magnet second are NdFeB material.
Described mixed excitation claw-pole motor composite magnetic steel is characterized in that, described magnetic pole cushion block is No. 10 steel or No. 45 Steel materials.
Described mixed excitation claw-pole motor composite magnetic steel is characterized in that, described permanent magnet first and permanent magnet second, and physical dimension is identical.
Described mixed excitation claw-pole motor composite magnetic steel is characterized in that, described permanent magnet first and permanent magnet second, and pole orientation is consistent.
The utility model mixed excitation claw-pole motor composite magnetic steel, the magnet steel that replaces the whole permanent magnetic material of prior art, can realize original composite excitation, reduce the pawl interelectrode magnetic leakage, improve the efficient of motor, save again rare earth resources, save cost, every composite magnetic steel is saved the price of half than original Nd-Fe-B permanent magnet, and makes simple and convenient, durable, real genus is economical and practical.
Below in conjunction with accompanying drawing, the utility model is further described, the following stated embodiment only is the example as the utility model implementation, and is not the restriction that the utility model is done.
Description of drawings
Fig. 1 is the utility model mixed excitation claw-pole motor composite magnetic steel structure cross-sectional schematic;
Fig. 2 is the utility model mixed excitation claw-pole motor composite magnetic steel mounting structure cross-sectional schematic;
In the accompanying drawing: 1-magnetic pole cushion block; 2a-permanent magnet first; 2b-permanent magnet second; The 3-pawl utmost point.
Embodiment
As shown in Figure 1, the automotive mixed composite magnetic steel that closes the excitation claw-pole motor of present embodiment, comprise a soft magnetic bodies magnetic pole cushion block 1 that is fixed together, and two permanent magnet permanent magnet first 2a and permanent magnet second 2b, described permanent magnet first 2a and permanent magnet second 2b, be separately fixed at the both sides of magnetic pole cushion block 1, it at first cements in a NdFeB material permanent magnet first 2a one side of soft magnet material magnetic pole cushion block 1 with glue, then with another piece NdFeB material permanent magnet second 2b, N according to correspondence, the S utmost point, namely consistent with permanent magnet first 2a pole orientation, cement in the opposite side of magnetic pole cushion block 1 offside, form the composite magnetic steel of a new integral body.Permanent magnet first 2a and permanent magnet second 2b are hard magnetic body, and the composite magnetic steel that they and soft magnetic bodies magnetic pole cushion block 1 are fixed together and consist of has satisfied the requirement of its mounting structure, has also satisfied motor composite excitation needs.At last, again demarcate on this whole composite magnetic steel N, S extremely after, as shown in Figure 2, among the motor pawl utmost point 3 of packing into.No. 10 steel of present embodiment soft magnetic bodies magnetic pole cushion block 1 material selection or No. 45 steel.
Except the above embodiment, the utility model can also have other execution modes, does not give unnecessary details one by one at this.In every case adopt the technical scheme that is equal to replacement or equivalent transformation formation, all belong to the protection range of the utility model requirement.
Claims (6)
1. mixed excitation claw-pole motor composite magnetic steel, it is characterized in that, comprise a soft magnetic bodies magnetic pole cushion block (1) that is fixed together, and two permanent magnet permanent magnet first (2a) and permanent magnet second (2b), described permanent magnet first (2a) and permanent magnet second (2b) are separately fixed at the both sides of magnetic pole cushion block (1).
2. described mixed excitation claw-pole motor composite magnetic steel according to claim 1 is characterized in that described permanent magnet first (2a) and permanent magnet second (2b) are separately fixed at magnetic pole cushion block (1) both sides by glue.
3. described mixed excitation claw-pole motor composite magnetic steel according to claim 1 is characterized in that described permanent magnet first (2a) and permanent magnet second (2b) are NdFeB material.
4. described mixed excitation claw-pole motor composite magnetic steel according to claim 1 is characterized in that described magnetic pole cushion block (1) is No. 10 steel or No. 45 Steel materials.
5. described mixed excitation claw-pole motor composite magnetic steel according to claim 1 is characterized in that, described permanent magnet first (2a) and permanent magnet second (2b), and physical dimension is identical.
6. described mixed excitation claw-pole motor composite magnetic steel according to claim 1 is characterized in that, described permanent magnet first (2a) and permanent magnet second (2b), and pole orientation is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220470740.8U CN202798172U (en) | 2012-09-17 | 2012-09-17 | Mixed excitation claw pole motor composite magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220470740.8U CN202798172U (en) | 2012-09-17 | 2012-09-17 | Mixed excitation claw pole motor composite magnetic steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798172U true CN202798172U (en) | 2013-03-13 |
Family
ID=47825346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220470740.8U Expired - Lifetime CN202798172U (en) | 2012-09-17 | 2012-09-17 | Mixed excitation claw pole motor composite magnetic steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096909A (en) * | 2021-03-30 | 2021-07-09 | 北京工商大学 | Resource-saving high-performance combined rare earth permanent magnet and preparation method thereof |
| CN114499080A (en) * | 2022-01-28 | 2022-05-13 | 中国科学院赣江创新研究院 | Composite permanent magnetic steel and manufacturing method thereof |
-
2012
- 2012-09-17 CN CN201220470740.8U patent/CN202798172U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096909A (en) * | 2021-03-30 | 2021-07-09 | 北京工商大学 | Resource-saving high-performance combined rare earth permanent magnet and preparation method thereof |
| CN114499080A (en) * | 2022-01-28 | 2022-05-13 | 中国科学院赣江创新研究院 | Composite permanent magnetic steel and manufacturing method thereof |
| CN114499080B (en) * | 2022-01-28 | 2024-02-23 | 中国科学院赣江创新研究院 | Composite permanent magnet steel and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |