CN2144367Y - AC brushless electric machine - Google Patents
AC brushless electric machine Download PDFInfo
- Publication number
- CN2144367Y CN2144367Y CN 92243811 CN92243811U CN2144367Y CN 2144367 Y CN2144367 Y CN 2144367Y CN 92243811 CN92243811 CN 92243811 CN 92243811 U CN92243811 U CN 92243811U CN 2144367 Y CN2144367 Y CN 2144367Y
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- CN
- China
- Prior art keywords
- rotor
- control circuit
- electric machine
- brushless electric
- stator
- 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
The utility model discloses an AC brushless electric machine which relates to a brushless electric machine comprises a rotor, a stator, a rectifying circuit and a control circuit. The rotor is a circular ring which comprises two pairs of arc permanent magnets. The magnetic poles of the permanent magnets point to the center of the circle, and the magnetic polarity of the magnetic poles of adjacent permanent magnets which point to the center of the circle is different. The stator is composed of a cruciform iron core which is sheathed on the central axis of the rotor and two stator windings which are perpendicularly winded on the iron core. The commercial alternating current passes through the rectifying circuit and the control circuit and alternately inputs the stator windings to generate an electromagnetic field, and the electromagnetic field and the permanent magnets of the rotor are mutually repulsive, which makes the rotor rotate about the central axis. The AC brushless electric machine can be directly driven by the commercial alternating current, so the use is convenient.
Description
The utility model relates to a kind of brushless electric machine.
Brushless electric machine is the New-type electric machine that is different from the conventional motors that has brush, it is along with the appearance of magneto sensor (for example Hall element) grows up, brushless electric machine of the prior art mainly is made up of with the control circuit that produces rotary electromagnetic field rotor, stator and control stator winding alternate energisation, rotor is the annulus that comprises two pairs of circular arc permanent magnets, its center has a central shaft and can rotate around central shaft, the magnetic pole of circular arc permanent magnet points to the center of circle, and adjacent permanent magnet is pointed to the pole polarity inequality in the center of circle.Stator is made of with two mutual vertical stator winding that are wound on the iron core the cruciform shaped core that is sleeved on the rotor center axle, is mounted in the annular rotor.Control circuit mainly is made up of Hall element, transistor and resistance, electric capacity, utilize two transistors of signal of telecommunication control that Hall element induces to replace break-make so that be connected in two stator winding alternate energisations in the transistor collector circuit respectively and produce rotating magnetic field, this rotating magnetic field is repelled mutually with two pairs of rotor permanent magnets and is promoted rotor around its central shaft rotation.The brushless electric machine volume of this structure is little, in light weight, and brushless loss and electric spark disturb, and rotating speed is high and be convenient to adjustment, so its range of application is very extensive.But because the electric current of the operating current of control circuit and input stator winding must be a direct current, therefore, brushless electric machine of the prior art all adopts low-voltage dc power supply to drive.If the user wants directly to adopt AC power to drive brushless electric machine, then must be equipped with suitable rectifier and source of stable pressure separately, this makes troubles not only for user's use, and has limited the scope of application of brushless electric machine.
The purpose of this utility model is a kind of brushless electric machine that can directly adopt electric main to drive of design, with the convenient range of application of using and further widening brushless electric machine.
To achieve these goals, the utility model was set up a rectification circuit and is made it to fuse with control circuit before the brushless electric machine control circuit, electric main is alternately imported two stator winding through control circuit earlier again after the rectification circuit rectification is the direct current of appropriate voltage.Like this, the user needn't be equipped with independent rectifier and source of stable pressure and can directly adopt electric main to drive brushless electric machine.This AC brushless electric machine uses conveniently except that the advantage with traditional brushless electric machine, and range of application is broad more.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the utility model AC brushless electric machine.
Accompanying drawing 1 is the circuit diagram of the utility model AC brushless electric machine control circuit and rectification circuit.
With reference to the accompanying drawings 1, the control circuit of the utility model AC brushless electric machine mainly is made up of Hall element H, transistor BG4, BG5 and BG6 and resistance R 19, R20, R21, R22, capacitor C 9, C10 and diode D14, and stator winding L1 and L2 are connected in respectively in BG5 and the BG6 collector circuit.This control circuit utilizes signal of telecommunication control transistor BG5 that Hall element induces and BG6 to replace break-make so that stator winding L1 and L2 alternate energisation and produce rotating magnetic field, and its operating current and the electric current that feeds stator winding are low-voltage direct.For making brushless electric machine can directly adopt electric main to drive, set up the bridge rectifier of being made up of diode D1-D4 before control circuit, the 220V electric main is alternately imported two stator winding L1-L2 through control circuit earlier again behind the direct current that this bridge rectifier rectification is an appropriate voltage.
For the ease of adjusting the control circuit direct voltage, the copped wave filter of being made up of controllable silicon DT, capacitor C 7, C8 and resistance R 17 can be set after bridge rectifier, the angle of flow that changes DT can change filter output voltage, also promptly adjusts the control circuit direct voltage.Thyristor gating circuit can be made up of voltage stabilizing didoe D5-D7, capacitor C 2, C3, resistance R 2-R7, R13, R14 and transistor BG1, BG2, BG3, changes the angle of flow and and then adjustment control circuit direct voltage that the BG3 base potential can change DT.For the moment that prevents to start shooting because of C7 with the C8 charging current is excessive that D1-D4 and DT are burnt, can adopt the buffer circuit of forming by D8-D10, R8, R9, R11 and C4, C5.For the fluctuation that cushions ac input voltage and the variation of motor operating voltage, can adopt the fluctuation buffering of forming by D11-D13, R12, R15, R16, R18, R24 and C6 and adjust circuit.
The utility model can directly adopt electric main to drive, and has widened the range of application of brushless electric machine and has made the use of brushless electric machine convenient.
Claims (1)
1, a kind of brushless electric machine is made up of rotor, stator and control circuit, and rotor is to comprise the annulus of two pairs of circular arc permanent magnets and can rotate the magnetic pole sensing center of circle of permanent magnet, the pole polarity inequality in the adjacent permanent magnet sensing center of circle around its central shaft; Stator constitutes with two mutual vertical stator winding that are wound on the iron core and is mounted in the annular rotor by being sleeved on cruciform shaped core on the rotor center axle; Control circuit is made up of hall device, transistor and resistance, electric capacity, and low-voltage DC is alternately imported two stator winding and made two stator winding alternately produce rotary electromagnetic field by control circuit; Of the present utility model being characterised in that is provided with a rectification circuit before the described control circuit; Electric main is alternately to import two stator winding through control circuit again behind the direct current of appropriate voltage through the rectification circuit rectification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243811 CN2144367Y (en) | 1992-12-19 | 1992-12-19 | AC brushless electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243811 CN2144367Y (en) | 1992-12-19 | 1992-12-19 | AC brushless electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2144367Y true CN2144367Y (en) | 1993-10-20 |
Family
ID=33783248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92243811 Expired - Fee Related CN2144367Y (en) | 1992-12-19 | 1992-12-19 | AC brushless electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2144367Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705562A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Magnetic valve with inner Y-shaped rotor having fixed rotational angle |
| CN102700526A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Semi-automatic error correction braking system with outward rotating solenoid valve having fixed rotation angle |
-
1992
- 1992-12-19 CN CN 92243811 patent/CN2144367Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705562A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Magnetic valve with inner Y-shaped rotor having fixed rotational angle |
| CN102700521A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Semi-automatic error correction braking system with inward rotating solenoid valve having fixed rotation angle |
| CN102700526A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Semi-automatic error correction braking system with outward rotating solenoid valve having fixed rotation angle |
| CN102700524A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Automobile with semi-automatic error correction braking system with inward rotating solenoid valve having fixed rotation angle |
| CN102700525A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Error correction braking system with outward rotating solenoid valve having fixed rotation angle and control method thereof |
| CN102705563A (en) * | 2011-11-28 | 2012-10-03 | 黄强 | Electromagnetic valve with outer-coated rotor with fixed rotation angle |
| CN102700525B (en) * | 2011-11-28 | 2014-09-10 | 黄强 | Error correction braking system with outward rotating solenoid valve having fixed rotation angle and control method thereof |
| CN102700521B (en) * | 2011-11-28 | 2014-10-08 | 黄强 | Semi-automatic error correction braking system with inward rotating solenoid valve having fixed rotation angle |
| CN102700526B (en) * | 2011-11-28 | 2014-11-05 | 黄强 | Semi-automatic error correction braking system with outward rotating solenoid valve having fixed rotation angle |
| CN102700524B (en) * | 2011-11-28 | 2014-11-05 | 黄强 | Automobile with semi-automatic error correction braking system with inward rotating solenoid valve having fixed rotation angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |