CN2082915U - Hall switching element controlled dc brushless motor - Google Patents
Hall switching element controlled dc brushless motor Download PDFInfo
- Publication number
- CN2082915U CN2082915U CN 90214886 CN90214886U CN2082915U CN 2082915 U CN2082915 U CN 2082915U CN 90214886 CN90214886 CN 90214886 CN 90214886 U CN90214886 U CN 90214886U CN 2082915 U CN2082915 U CN 2082915U
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- CN
- China
- Prior art keywords
- hall
- brushless motor
- hall switch
- motor
- switching element
- 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.)
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- Control Of Motors That Do Not Use Commutators (AREA)
- Brushless Motors (AREA)
Abstract
The utility model discloses an unipolar hall switching element controlled dc brushless motor, comprising a position sensor, a stator winding, a permanent magnetic rotor body, a low-voltage power supply, and a driving amplifier. An ordinary unipolar hall switching is used as a control element. The utility model has the advantages of simple structure, easy manufacturing and low cost.
Description
The utility model relates to a kind of improved Hall DC Brushless Motor.Be to control with common unipolar Hall switch element.
Existing Hall DC Brushless Motor is made up of rotor block, motor stator body, position transducer, low-tension supply and corresponding driving circuit.Commercially available Bael,Switzerland is adopted the product that company of department (BALZES) produces, the product of imitative above-mentioned company of Beijing instrument plant of domestic Chinese Academy of Sciences development all is this structure, this motor is by ambipolar Hall element control, its position transducer is by two ambipolar Hall elements, be mutually 90 ° angle, be potted on the interior garden of motor stator body and constitute.The bipolarity Hall element all produces control signal to S, the N utmost point of rotor rotated magnet.But the greatest weakness of this element is the output signal of telecommunication weak (less than 800 millivolts), must carry out multistage amplification and distribution to output signal.The external circuit that matches need adopt four operational amplifiers to amplify and distribute, and just can enter driving stage.This Hall element is also strict to the requirement of low-voltage power supply circuit simultaneously, this kind Hall dc brushless motor control circuit complexity, and complete machine cost height, stability and reliability are low.Bipolarity Hall element price is higher, and the domestic market is difficult for obtaining, and is unfavorable for applying of equipment.
The objective of the invention is to: with not enough, provide a kind of improved Hall brushless DC motor at above shortcoming, use simple, that price is lower, that application is more general unipolarity Hall switch element control.
Task of the present invention is finished as follows, and this motor is by position transducer (H
1-4), stator winding (L
1-4), p-m rotor body (N-S), low-tension supply (IC) and driving amplifier (T
1-4) form.Position transducer is made of four unipolar Hall switch elements.These four Hall switch elements are contained in the inboard of a metal garden ring, evenly distribute, and are mutually 90 ° of angles in the space.Four Hall switch elements are corresponding with No. four drive circuits, and drive circuit amplifies the signal of Hall element, produce electromagnetic torque.
When the motor rotor body rotates, the N pole field is inswept successively each Hall switch element.The rotor revolution is crossed 90 °, just makes the work of a Hall switch element, produces control signal, this signal is connected the amplifier tube of corresponding drive circuit, impels next stator winding electrifying to set up magnetic field, produces electromagnetic attraction, attract rotor block, make rotor constantly rotate acceleration.Change the voltage be applied on the stator winding, can reach desired rotating speed, speed adjustable range of the present utility model can reach that per minute is several to forward 50,000 commentaries on classics to.
Accompanying drawing of the present invention is as follows:
Fig. 1 motor position sensor structure chart.
The DC motor fundamental diagram of Fig. 2 Hall switch element control.
The present invention is described further below in conjunction with accompanying drawing: Fig. 1 and Fig. 2 are a kind of optimum implementation of this utility model.Among Fig. 1, A is the support of position transducer, H
1The-4th, hall sensor.Among Fig. 2, N, S are a pair of magnetic poles of motor rotor body, L
1The-4th, motor stator winding, T
1The-4th, the drive circuit transistor.When the N utmost point over against Hall switch element H
1The time, H
1Output signal, the control Driver Circuit transistor T
1Saturation conduction, stator winding L
1In flow through electric current, set up S poles attract rotor magnetic pole N, rotor turns over 90 ° clockwise, rotor magnetic pole N aims at H
2, H
2Output signal, oxide-semiconductor control transistors T
2Saturation conduction, stator winding L
2In flow through electric current, set up the S magnetic pole, attract the N magnetic pole of rotor, rotor turns over 90 ° again clockwise.Meanwhile, Hall element H
1End, turn-off transistor T
1And the like, H
3, H
4Conducting successively attracts rotor N, so rotor rotates with regard to non-stop.
The present invention has the following advantages compared to existing technology:
1, the unipolarity Hall switching element is easy to obtain and make, and price is low than the bipolarity Hall element.
2, output signal is big, and the drive amplification circuit is simple.
3, low-voltage power supply circuit is simple.
4, complete machine stability and reliability improve, and cost reduces.
Claims (3)
1, a kind of DC Brushless Motor of Hall switch element control is by position transducer (H
1-4), stator winding (L
1-4), p-m rotor body (N-S), low-tension supply (IC) and driving amplifier (T
1-4) form, it is characterized in that the position transducer of this motor is made up of four Hall switch elements.
2, the DC Brushless Motor of Hall switch element control according to claim 1 is characterized in that the Hall switch element is unipolar.
3, the DC Brushless Motor of Hall switch element control according to claim 1 and 2 is characterized in that four Hall switch elements are evenly distributed on the interior garden of motor stator winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90214886 CN2082915U (en) | 1990-09-01 | 1990-09-01 | Hall switching element controlled dc brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90214886 CN2082915U (en) | 1990-09-01 | 1990-09-01 | Hall switching element controlled dc brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2082915U true CN2082915U (en) | 1991-08-14 |
Family
ID=4894226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90214886 Withdrawn CN2082915U (en) | 1990-09-01 | 1990-09-01 | Hall switching element controlled dc brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2082915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723835A (en) * | 2011-03-31 | 2012-10-10 | 比亚迪股份有限公司 | Device with integration of motor and generator and control method thereof |
-
1990
- 1990-09-01 CN CN 90214886 patent/CN2082915U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723835A (en) * | 2011-03-31 | 2012-10-10 | 比亚迪股份有限公司 | Device with integration of motor and generator and control method thereof |
| CN102723835B (en) * | 2011-03-31 | 2015-06-24 | 比亚迪股份有限公司 | Device with integration of motor and generator and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |