CN203416061U - Multi-polarity magnetic steel brushless fan structure - Google Patents
Multi-polarity magnetic steel brushless fan structure Download PDFInfo
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- CN203416061U CN203416061U CN201320349472.9U CN201320349472U CN203416061U CN 203416061 U CN203416061 U CN 203416061U CN 201320349472 U CN201320349472 U CN 201320349472U CN 203416061 U CN203416061 U CN 203416061U
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- fan structure
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Abstract
The utility model relates to a multi-polarity magnetic steel brushless fan structure. The multi-polarity magnetic steel brushless fan structure comprises a fan blade, a motor and an outer frame, the fan blade is connected with the motor, the fan blade and the motor are both arranged in the outer frame, the motor comprises a motor stator assembly, a motor rotor, a rotor chassis and magnetic steel, the motor stator assembly is connected with the motor rotor, the rotor chassis is arranged on the motor rotor, the magnetic steel is fixedly arranged on the inner wall of the rotor chassis, and the magnetic steel is multi-polarity magnetic steel. Compared with the prior art, the multi-polarity magnetic steel brushless fan structure is advantaged by simple structure, high production benefit and the like.
Description
Technical field
The utility model relates to a kind of Automobile Fan systems technology field, especially relates to a kind of multipolarity magnet steel brushless fan structure.
Background technology
At automotive field, the blower motor of the air-conditioning system of big bus, cooling system etc. still be take brush motor as main at present; Along with the development of science and technology with high-end automobile, brushless DC blower is applied corresponding increase.DC motor control system is still widely applied so far, and shortcoming is the complex structure of motor own, mechanical commutation, have the maintenance issues of brush, the electric spark of commutation can produce serious electromagnetic interference, may have ring fire at a high speed, is not suitable for high-speed cruising, volume is bigger than normal, protection is poor etc.In view of shortcoming is numerous and the developing rapidly of other motor driven systems, can predict, direct current machine will progressively be eliminated.Permagnetic synchronous motor is to utilize permanent magnet to set up the synchronous machine of excitation field, and its stator produces rotating magnetic field, and rotor is made with permanent magnetic material, and magnetic field interaction rotates rotor; And have that efficiency is high, torque and power density is large, volume is little, reliability is high and be convenient to the advantages such as maintenance.Following at automotive field brushless DC blower, progressively substitute that to have brush blower fan be a kind of trend.
From the version of rotor, distinguish: two kinds of inner rotor core form, outer-rotor structure forms.
No matter which kind of form motor rotor construction be, its magnet steel mode kind that magnetizes is many.Mostly the magnet steel mode of magnetizing of for example moulding magnetic material is whole piece formula, after be rolled into one week and be installed on rotor surface; Mostly the magnet steel form of magnetizing of Ferrite Material is split type, and the polarity that magnetizes on monolithic magnet steel is unicity.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of simple in structure, the much higher polarity magnet steel of productivity effect brushless fan structure in order to overcome the defect of above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of multipolarity magnet steel brushless fan structure, comprise flabellum, motor and housing, described flabellum is connected with motor, and be all located in housing, described motor comprises motor stator component, rotor, rotor casing and magnet steel, and described motor stator component is connected with rotor, and described rotor casing is located on rotor, described magnet steel is fixedly installed on rotor casing inner wall, and described magnet steel is multipolarity magnet steel.
Polarity on described magnet steel is N, the setting of S alternating polarity.
Described magnet steel is provided with a plurality of, distributes and is arranged on rotor casing inner wall.
Described rotor casing inner wall is provided with magnet steel fixture.
Described motor stator component comprises winding and stator slot, and described winding is located in stator slot.
Compared with prior art, the magnet steel that the utility model adopts is multipolarity magnet steel, on a slice magnet steel, no longer only has a kind of polarity (N or S), but N, S alternating polarity arrange on same a slice magnet steel, simplify blower motor structure, greatly reduced the amount of parts such as magnet steel, improved Product Assembly quick-acting, simplified motor process and improved productivity effect, reduced production costs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the distribution map of magnet steel on rotor casing;
Fig. 3 is the schematic diagram that magnetizes of monolithic magnet steel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.The present embodiment be take technical solutions of the utility model and is implemented as prerequisite, provided detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of multipolarity magnet steel brushless fan structure, adopt outer-rotor structure form, comprise flabellum 1, motor and housing 5, described flabellum 1 is connected with motor, and be all located in housing 5, described motor comprises motor stator component 2, rotor, rotor casing 3 and magnet steel 4, described motor stator component 2 is connected with rotor, it is the vitals that motor internal produces rotating magnetic field, described rotor casing 3 is located on rotor, it is the magnetic circuit of rotor, described magnet steel 4 is multipolarity magnet steel, a kind of permanent-magnet magnetic field source is provided, polarity on magnet steel is N, S alternating polarity arranges.As shown in Figure 2, described magnet steel 4 is provided with a plurality of, distributes and is arranged on rotor casing inner wall 3, and described rotor casing inner wall is provided with magnet steel fixture, prevents that magnet steel from coming off.
Described motor stator component 2 comprises winding and stator slot, and described winding is located in stator slot.Described housing 5 arranges in pairs with flabellum 1, and stable air quantity is provided, and plays cooling effect.
Take the utmost point of 12 groove 10 utmost points, the motor of groove cooperation is example, when 2p=10, on magnetic steel structure distributes, can be done as follows, be no longer to fill a kind of polarity (N or S), but N, S alternating polarity fills on same a slice magnet steel on a slice magnet steel; Cooperation drives the Electromagnetic Design of control mode with square wave, in order to obtain better approaching square wave air gap flux density, the magnetizing direction of magnetic steel of motor is chosen as radial magnetizing, the figure that magnetizes of monolithic magnet steel is shown in Fig. 3, arrow represents magnetizing direction: the magnet steel total quantity of so final use is n=p=5, and alternating polarity presents and meets Principle of Electric Engine design; In blower fan, the magnet steel of outer-rotor structure form is directly bonded in rotor casing inner wall; In order to prevent that magnet steel from coming off, on rotor casing, increase the mechanical structure of slip-off preventing, magnet steel is coordinated with it for little matched in clearance.In technique, easy to assembly and raising reliability after minimizing amount of parts.In the present embodiment, 10 utmost point magnetic steel structures only need 5 magnet steel.Especially for the many especially rotor magnetic steels of number of poles, its advantage magnetizing is just more obvious.
Claims (6)
1. a multipolarity magnet steel brushless fan structure, comprise flabellum, motor and housing, described flabellum is connected with motor, and be all located in housing, described motor comprises motor stator component, rotor, rotor casing and magnet steel, and described motor stator component is connected with rotor, described rotor casing is located on rotor, described magnet steel is fixedly installed on rotor casing inner wall, it is characterized in that, described magnet steel is multipolarity magnet steel.
2. a kind of multipolarity magnet steel brushless fan structure according to claim 1, is characterized in that, the polarity on described magnet steel is N, the setting of S alternating polarity.
3. a kind of multipolarity magnet steel brushless fan structure according to claim 1, is characterized in that, described magnet steel is provided with a plurality of, distributes and is arranged on rotor casing inner wall.
4. a kind of multipolarity magnet steel brushless fan structure according to claim 1, is characterized in that, described rotor casing inner wall is provided with magnet steel fixture.
5. a kind of multipolarity magnet steel brushless fan structure according to claim 1, is characterized in that, described motor stator component comprises winding and stator slot, and described winding is located in stator slot.
6. a kind of multipolarity magnet steel brushless fan structure according to claim 1, is characterized in that, described housing and flabellum arrange in pairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320349472.9U CN203416061U (en) | 2013-06-18 | 2013-06-18 | Multi-polarity magnetic steel brushless fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320349472.9U CN203416061U (en) | 2013-06-18 | 2013-06-18 | Multi-polarity magnetic steel brushless fan structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416061U true CN203416061U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320349472.9U Expired - Fee Related CN203416061U (en) | 2013-06-18 | 2013-06-18 | Multi-polarity magnetic steel brushless fan structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203416061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586480A (en) * | 2017-09-29 | 2019-04-05 | 日本电产伺服有限公司 | Motor |
-
2013
- 2013-06-18 CN CN201320349472.9U patent/CN203416061U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586480A (en) * | 2017-09-29 | 2019-04-05 | 日本电产伺服有限公司 | 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: 20140129 Termination date: 20180618 |