CN202634231U - Brushless DC motor for bladeless fan - Google Patents
Brushless DC motor for bladeless fan Download PDFInfo
- Publication number
- CN202634231U CN202634231U CN 201220327931 CN201220327931U CN202634231U CN 202634231 U CN202634231 U CN 202634231U CN 201220327931 CN201220327931 CN 201220327931 CN 201220327931 U CN201220327931 U CN 201220327931U CN 202634231 U CN202634231 U CN 202634231U
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- Prior art keywords
- motor
- brushless
- stator
- shadow shield
- loophole
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- Expired - Fee Related
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Abstract
The utility model provides a technical scheme for a brushless DC (Direct Current) motor of a bladeless fan. The brushless DC motor adopting the scheme comprises a motor main body, wherein the motor main body comprises rotors for placing permanent magnets and a stator provided with a winding, a light shielding plate is arranged on the outer side of the motor main body, light holes are formed on the light shielding plate, and light sensors are also arranged on the stator. The brushless DC motor has high control precision, so that reliable operation of the brushless DC motor is guaranteed.
Description
Technical field
The utility model relates to a kind of brushless DC motor that is used to not have the flabellum fan.
Background technology
In the prior art, the motor in the fan of no flabellum is a brshless DC motor a lot, utilizes the semiconductor inverter to replace the mechanical commutator in the general DC motor; In motor, be provided with position transducer; Be used for sensing and confirm the relative position between magnetic pole and the winding, and then determining the moment that each phase winding of armature begins to switch on, do not have spark in the running like this; And noise is low; But the precision of the position transducer that uses now is relatively poor, can not realize the accurate fast operation of brushless DC motor, and this is the existing in prior technology weak point.
Summary of the invention
The purpose of the utility model; Be exactly not enough to existing in prior technology; And a kind of brushless DC motor technical scheme that is used to not have the flabellum fan is provided, the X in brushless DC motor control precision of this scheme is high, has guaranteed the reliability service of brushless DC motor.
This programme is realized through following technical measures: a kind of brushless DC motor that is used to not have the flabellum fan; Comprise motor body; The characteristics of this programme are: described motor body comprises the rotor of laying permanent magnet and the stator that has winding; The arranged outside of described motor body has shadow shield, and described shadow shield is provided with loophole, on stator, also is provided with optical sensor.Described optical sensor is three, and around the stator setting, the angle between per two optical sensors is 120 degree.The radian of the loophole on the described shadow shield is 120 degree.
The beneficial effect of this programme can learn according to the narration to such scheme, because stator is provided with optical sensor in this scheme, and induction light photograph timely, and corresponding signal is delivered to motor control assembly; On motor body, also be provided with shadow shield; Shadow shield is provided with loophole, and loophole is corresponding with optical sensor, like this in the rotor rotation process; Shadow shield is along with rotor moves together; When loophole forwarded the optical sensor place to, optical sensor will send signal like this, was convenient to control motor operation.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure, 1 is motor body, and 2 is rotor, and 3 is stator, and 4 is shadow shield, and 5 is loophole, and 6 is optical sensor.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below through an embodiment, and combine its accompanying drawing, this programme is set forth.
Can find out through accompanying drawing; The brushless DC motor that is used to not have the flabellum fan of this programme; Comprise motor body 1, described motor body 1 comprises the rotor 2 of laying permanent magnet and the stator 3 that has winding, and the arranged outside of described motor body 1 has shadow shield 4; Described shadow shield 4 is provided with loophole 5, on stator 3, also is provided with optical sensor 6.Described optical sensor 6 is three, and is provided with around stator 3, and the angle between per two optical sensors 6 is 120 degree.The radian of the loophole 5 on the described shadow shield 4 is 120 degree.
Claims (3)
1. brushless DC motor that is used to not have the flabellum fan; Comprise motor body; It is characterized in that: described motor body comprises the rotor of laying permanent magnet and the stator that has winding; The arranged outside of described motor body has shadow shield, and described shadow shield is provided with loophole, on stator, also is provided with optical sensor.
2. the brushless DC motor that is used to not have the flabellum fan according to claim 1 is characterized in that: described optical sensor is three, and around the stator setting, the angle between per two optical sensors is 120 degree.
3. the brushless DC motor that is used to not have the flabellum fan according to claim 1 and 2 is characterized in that: the radian of the loophole on the described shadow shield is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220327931 CN202634231U (en) | 2012-07-09 | 2012-07-09 | Brushless DC motor for bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220327931 CN202634231U (en) | 2012-07-09 | 2012-07-09 | Brushless DC motor for bladeless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634231U true CN202634231U (en) | 2012-12-26 |
Family
ID=47387374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220327931 Expired - Fee Related CN202634231U (en) | 2012-07-09 | 2012-07-09 | Brushless DC motor for bladeless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819687A (en) * | 2013-12-26 | 2015-08-05 | 阿自倍尔株式会社 | Rotation angle detector |
-
2012
- 2012-07-09 CN CN 201220327931 patent/CN202634231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819687A (en) * | 2013-12-26 | 2015-08-05 | 阿自倍尔株式会社 | Rotation angle detector |
| CN104819687B (en) * | 2013-12-26 | 2018-04-17 | 阿自倍尔株式会社 | Rotation angle detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20130709 |