CN201409114Y - Variable-frequency speed regulation circuit of shaded-pole motor - Google Patents
Variable-frequency speed regulation circuit of shaded-pole motor Download PDFInfo
- Publication number
- CN201409114Y CN201409114Y CN2009201494287U CN200920149428U CN201409114Y CN 201409114 Y CN201409114 Y CN 201409114Y CN 2009201494287 U CN2009201494287 U CN 2009201494287U CN 200920149428 U CN200920149428 U CN 200920149428U CN 201409114 Y CN201409114 Y CN 201409114Y
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- circuit
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- pole motor
- speed regulation
- speed regulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model relates to the field of motor speed regulation, in particular to a variable-frequency speed regulation circuit of a shaded-pole motor. The circuit comprises an oscillating circuit, afrequency dividing circuit, a push-pull power circuit and a transformer which are connected in sequence. The utility model has the advantages of simple structure and low cost; and the speed regulation is realized through frequency and voltage modulation, thereby maintaining the intact waveform of the whole AC voltage, eliminating tertiary resonant waves, avoiding pollution on an electrical systemand achieving good energy-saving effect.
Description
Technical field
The utility model relates to the electric machine speed regulation field, is specifically related to a kind of shaded pole motor frequency variant speed regulating circuit.
Background technology
The alignment circuit of traditional motor with cup rotor adopts bidirectional triode thyristor chopping regulating speed circuit, controls rotating speed of motor by regulating the silicon controlled angle of flow, the circuit structure complexity, and the cost height, and triple-frequency harmonics is big, is a kind of pollution to electric system.
The utility model content
The utility model has overcome above-mentioned shortcoming, provide a kind of simple in structure, cost is low, Circuits System is not had the shaded pole motor frequency variant speed regulating circuit that pollutes.
The technical scheme in the invention for solving the technical problem is: a kind of shaded pole motor frequency variant speed regulating circuit comprises successively the oscillating circuit, the frequency dividing circuit that connect, recommends power circuit and transformer.
Described oscillating circuit is 555 unstable state multi-resonant oscillating circuits, comprises 555 timers and variable resistor, and described variable-resistance sliding end is connected to described 555 timer U71 discharge ends, and the output of 555 timers links to each other with described frequency dividing circuit.
The divide by four circuit of described frequency dividing circuit for adopting digit counter to constitute, the input of described counter is connected to the output of described oscillating circuit, four outputs connect four diodes respectively, and one tunnel output is merged in the negative electrode output of described four diodes in twos.
The described power circuit of recommending comprises two triodes, and the output of described frequency dividing circuit is connected respectively to the base stage of two triodes, and output voltage is given described transformer after the collector and emitter conducting of described triode.
The utility model is simple in structure, and cost is low, owing to be to realize speed governing by frequency modulation and voltage modulation, whole alternating voltage waveform is intact, does not have resonance wave three times, Circuits System is not polluted good energy-conserving effect.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in fig. 1, the utility model is mainly by 555 unstable state multi-resonant oscillating circuits 1, divide by four circuit 2 with recommend power circuit 3 three parts and constitute.
Described 555 unstable state multi-resonant oscillating circuits comprise 555 timer U71 and variable resistor RP7, and the sliding end of described variable resistor RP7 is connected to described 555 timer U71 discharge ends, 7 ends through resistance R 71.By regulating the resistance of described variable resistor RP71, produce the PWM ripple of frequency adjustable.
Described divide by four circuit 2 comprises digit counter U72 and is connected to four diode D71-D74 of four outputs of described digit counter U72, the negative electrode output of described D71, D72 merges into one the tunnel, output after resistance R 75, the negative electrode output of described diode D73, D74 merges into one the tunnel, output after resistance R 76, thus the pwm signal of described 555 unstable state multi-resonant oscillating circuits output is realized four frequency divisions.
The described power circuit 3 of recommending mainly comprises two triode Q81, Q82 realizes power drive, the output of described R75 is after C76 filtering, be connected to the base stage of described triode Q81 again through resistance R 77, when the collector and emitter conducting of described triode Q81, output voltage is given transformer, in like manner, the output of described resistance R 76 is after C77 filtering, be connected to the base stage of triode Q82, after the collector and emitter conducting of described triode Q82, output voltage is given transformer T, exports to motor M by the adjusted alternating voltage of transformer T, reaches the purpose of motor with cup rotor variable voltage control.
Based on the elaboration of the said structure and the course of work as can be known, the utility model is simple in structure, and cost is low, owing to be to realize speed governing by frequency modulation and voltage modulation, whole alternating voltage waveform is intact, does not have resonance wave three times, Circuits System is not polluted good energy-conserving effect.
More than shaded pole motor frequency variant speed regulating circuit provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. shaded pole motor frequency variant speed regulating circuit is characterized in that: comprise the oscillating circuit, the frequency dividing circuit that connect successively, recommend power circuit and transformer.
2. shaded pole motor frequency variant speed regulating circuit according to claim 1, it is characterized in that: described oscillating circuit is 555 unstable state multi-resonant oscillating circuits, comprise 555 timers and variable resistor, described variable-resistance sliding end is connected to described 555 timer U71 discharge ends, and the output of 555 timers links to each other with described frequency dividing circuit.
3. shaded pole motor frequency variant speed regulating circuit according to claim 1, it is characterized in that: the divide by four circuit of described frequency dividing circuit for adopting digit counter to constitute, the input of described counter is connected to the output of described oscillating circuit, four outputs connect four diodes respectively, and one tunnel output is merged in the negative electrode output of described four diodes in twos.
4. shaded pole motor frequency variant speed regulating circuit according to claim 1, it is characterized in that: the described power circuit of recommending comprises two triodes, the output of described frequency dividing circuit is connected respectively to the base stage of two triodes, and output voltage is given described transformer after the collector and emitter conducting of described triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201494287U CN201409114Y (en) | 2009-04-15 | 2009-04-15 | Variable-frequency speed regulation circuit of shaded-pole motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201494287U CN201409114Y (en) | 2009-04-15 | 2009-04-15 | Variable-frequency speed regulation circuit of shaded-pole motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201409114Y true CN201409114Y (en) | 2010-02-17 |
Family
ID=41680060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201494287U Expired - Fee Related CN201409114Y (en) | 2009-04-15 | 2009-04-15 | Variable-frequency speed regulation circuit of shaded-pole motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201409114Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779891A (en) * | 2015-03-30 | 2015-07-15 | 成都颉隆科技有限公司 | Energy-saving type motor control system based on field-effect transistor common source amplifying circuit |
-
2009
- 2009-04-15 CN CN2009201494287U patent/CN201409114Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779891A (en) * | 2015-03-30 | 2015-07-15 | 成都颉隆科技有限公司 | Energy-saving type motor control system based on field-effect transistor common source amplifying circuit |
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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: 20100217 Termination date: 20140415 |