CN2547548Y - Air blower of air conditioning condenser for automobile - Google Patents
Air blower of air conditioning condenser for automobile Download PDFInfo
- Publication number
- CN2547548Y CN2547548Y CN 02262978 CN02262978U CN2547548Y CN 2547548 Y CN2547548 Y CN 2547548Y CN 02262978 CN02262978 CN 02262978 CN 02262978 U CN02262978 U CN 02262978U CN 2547548 Y CN2547548 Y CN 2547548Y
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- CN
- China
- Prior art keywords
- rotor
- stator
- motor
- conditioning condenser
- circuit
- 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
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Abstract
An air blower of an air conditioning condenser for an automobile comprises a base, a direct current motor arranged on the base and a blower drive device; fan blades are connected with a motor shaft; a magnet is arranged on a rotor of the direct current; a plurality of pairs of coils are uniformly distributed on a stator; a sensor corresponding to the magnetic field of the rotor is also arranged inside the motor shell; the sensor is connected with a signal input terminal of a rotor coding converter circuit; the output terminal of the rotor coding converter circuit is correspondingly connected with the coils of the stator to form a brushless direct current through a power amplifying circuit. The rotor and the stator of the direct motor adopts the structure similar to the alternating current motor; the rotor coding converter circuit can output direct current to the coils of the stator for driving the rotor to operate through the power amplifying circuit without adopting the brush, thereby the operation of the motor is safer and more reliable and the air blower can have radiating operation stably and durably and improve the heat exchange efficiency of the air conditioning condenser for automobile.
Description
Technical field: the utility model relates to a kind of cooling fan that is used for automotive air-conditioning condenser.
Background technology: the blower fan of automotive air-conditioning condenser uses automobile power source to be used as power, and therefore must adopt DC machine to drive fan blade.General DC machine all has brush, and service wear is bigger, and is not durable, and brush is easy to damage and makes the blower fan heat radiation of can not working, and brush in use may produce spark with rotor, influences safety.
Summary of the invention: at the prior art deficiency, the utility model provides a kind of and drives fan blade with brushless DC electric machine, safe and reliable automotive air-conditioning condenser blower fan.
The utility model comprises base and DC machine provided thereon, fan blade is connected on the motor shaft, rotor DC machine is provided with magnetic patch, then be evenly distributed with some on the stator to coil, in electric machine casing, also be provided with magnetic field corresponding sensor with rotor, its signal input part with rotor-position decoding frequency changer circuit is connected, and the mouth of this rotor-position decoding frequency changer circuit connects and composes the brushless DC electric machine actuating device by each coil correspondence of power amplification circuit and stator.
Rotor DC machine of the present utility model and stator have adopted the structure of similar alternating current dynamo, rotor-position decoding frequency changer circuit can be through the coil drive working rotor of power amplification circuit output AC electricity to stator, need not to adopt brush, the machine operation safety and reliability, make the work heat radiation that blower fan can stability and durability, improve the effectiveness of regenerator of automotive air-conditioning condenser.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is a main structure scheme drawing of the present utility model;
Fig. 2 is that the A of Fig. 1 rotor and stator is to view;
Fig. 3 is a circuit block diagram of the present utility model;
Fig. 4 is the circuit connection diagram of embodiment.
Embodiment: as shown in the figure, DC machine is located on the base 7, and fan blade 8 is connected on the motor shaft, and rotor DC machine 2 is provided with magnetic patch 4, and present embodiment has the magnetosphere of two couples of S, the N utmost point to be enclosed within on the rotor 2 with surface magnetization.On the stator 3 of DC machine, then be evenly distributed with somely, generally use three pairs coil 5.In electric machine casing 1, also be provided with magnetic field corresponding sensor 6 with rotor 2, its signal input part with rotor-position decoding frequency changer circuit is connected, and the mouth of this rotor-position decoding frequency changer circuit connects and composes the brushless DC electric machine actuating device by each coil 5 correspondence of power amplification circuit and stator 3.During work, rotor-position decoding frequency changer circuit can be exported pulse electrical signal to power amplification circuit, amplifies the coil 5 that becomes alternating current input stator 3 and drives rotor 2, makes fan blade 8 rotate heat radiation.Sensor 6 is used for the magnetic field of inductiopn rotor 2, it is the position signal of rotor 2, after the decoding of rotor-position decoding frequency changer circuit, can influence the phase place of output Pulse Electric, make the alternating current in the coil 5 of input stator 3 and the magnetic field of rotor 2 keep cooperating like this, avoid occurring the situation that moment can't start.
The sensor 6 of present embodiment is a Hall element, and induction accurately and reliably.Rotor-position decoding frequency changer circuit then is made up of the components and parts that the integrated package MC33033 and the standard of decoding frequency conversion special use is connected on each pin, perhaps realization said function such as also available integrated package MC33035.Because the automobile power source instability can connect the mu balanced circuit of forming with integrated regulator 7812 and corresponding components and parts 10 on the power input of integrated package MC33033.Power amplification circuit can adopt the complementation that constitutes with the field effect transistor of the coil 5 identical logarithms of stator 3 to promote circuit 9, and present embodiment is with three pairs of field effect transistor and each coil 5 correspondences.
Claims (2)
1, a kind of automotive air-conditioning condenser blower fan, comprise base and DC machine provided thereon, fan blade is connected on the motor shaft, it is characterized by: rotor DC machine (2) is provided with magnetic patch (4), then be evenly distributed with some on the stator (3) to coil (5), in electric machine casing (1), also be provided with and the magnetic field corresponding sensor (6) of rotor (2), its signal input part with rotor-position decoding frequency changer circuit is connected, and the mouth of this rotor-position decoding frequency changer circuit connects and composes the brushless DC electric machine actuating device by each coil (5) correspondence of power amplification circuit and stator (3).
2, automotive air-conditioning condenser blower fan according to claim 1, it is characterized by: sensor (6) is a Hall element, rotor-position decoding frequency changer circuit is made up of the components and parts that integrated package MC33033 and standard are connected on each pin, and the complementation that the field effect transistor of the identical logarithm of coil (5) of power amplification circuit employing and stator (3) constitutes promotes circuit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262978 CN2547548Y (en) | 2002-07-04 | 2002-07-04 | Air blower of air conditioning condenser for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262978 CN2547548Y (en) | 2002-07-04 | 2002-07-04 | Air blower of air conditioning condenser for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547548Y true CN2547548Y (en) | 2003-04-30 |
Family
ID=33729451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02262978 Expired - Fee Related CN2547548Y (en) | 2002-07-04 | 2002-07-04 | Air blower of air conditioning condenser for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547548Y (en) |
-
2002
- 2002-07-04 CN CN 02262978 patent/CN2547548Y/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 | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Wensheng Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Wensheng Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030430 Termination date: 20100704 |