CN203119824U - Direct current motor power-saving device - Google Patents
Direct current motor power-saving device Download PDFInfo
- Publication number
- CN203119824U CN203119824U CN2013200370635U CN201320037063U CN203119824U CN 203119824 U CN203119824 U CN 203119824U CN 2013200370635 U CN2013200370635 U CN 2013200370635U CN 201320037063 U CN201320037063 U CN 201320037063U CN 203119824 U CN203119824 U CN 203119824U
- Authority
- CN
- China
- Prior art keywords
- motor
- direct current
- thyristor
- unijunction transistor
- saving device
- 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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- 239000003990 capacitor Substances 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Control Of Direct Current Motors (AREA)
Abstract
The utility model relates to a direct current motor power-saving device. A motor M is serially connected with a bridge type full-wave rectifier circuit composed of diodes VD1-VD4. The output end of the bridge type full-wave rectifier circuit is connected with a thyristor VS. The output end of the thyristor VS is connected to a unijunction transistor VT1. A capacitor C2 connected with the output end of the unijunction transistor VT1 charges a voltage-stabilizing tube DW through a resistor R4 and a potentiometer RP which are serially connected with the capacitor C2. The direct current motor power-saving device is a simple motor speed regulation circuit. The circuit is suitably used in a single phase motor driven by a 220-volt commercial power supply. The circuit controls the rated current of the motor to be within 6.5A and further controls the power of the motor to be approximately 0.5kW. The energy-saving purpose is thus achieved. The direct current motor power-saving device is suitably used in motors of household electric fans and ceiling fans, and single phase motors, etc.
Description
Technical field
The utility model relates to a kind of energy saver, particularly be a kind of direct current machine battery saving arrangement.
Background technology
The application of motor is very extensive, but existing motor speed adjusting circuit structure complexity has been wasted and arrived very much electric energy.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of direct current machine battery saving arrangement is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of direct current machine battery saving arrangement, the full-wave bridge rectifier circuit that is constituted by diode VD1-VD4 by motor M series connection one, its output is connected with thyristor VS, the output of described thyristor VS is connected to unijunction transistor VT1, and the capacitor C 2 that unijunction transistor VT1 output connects is charged to voltage-stabiliser tube DW by resistance R 4, the potentiometer RP of its series connection.
The diode VD5 series connection earth capacitance C1 that described unijunction transistor VT1 connects.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model is a kind of easy motor speed adjusting circuit, this circuit is applicable to the single-phase motor that the 220V civil power drives, its control motor rated current is in 6.5A, power is about 0.5kW, reach purpose of energy saving, be applicable to family's electric fan, ceiling fan motor and single-phase motor thereof etc.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of direct current machine battery saving arrangement of the present utility model, by the full-wave bridge rectifier circuit that motor M series connection one is made of diode VD1-VD4, its output is connected with thyristor VS, and full-wave bridge rectifier circuit provides full-wave rectified voltage to thyristor VS.When thyristor VS connects, be rendered as low resistance circuit.When being negative half period, electric current constitutes the loop through motor M, diode VD1, thyristor VS, resistance R 1, diode VD3: when being positive half cycle, electric current constitutes the loop through diode VD2, thyristor VS, resistance R 1, diode VD4, motor M, what motor M obtained is alternating current, the voltage swing at motor M two ends depends mainly on thyristor VS conducting degree, as long as change the angle of flow of thyristor VS, just can change the pressure drop of thyristor VS, the voltage at motor M two ends also changes thereupon, reaches the purpose of variable voltage control.
The output of described thyristor VS is connected to unijunction transistor VT1, the trigger impulse of thyristor VS produces by unijunction transistor VT1, the capacitor C 2 that unijunction transistor VT1 output connects is charged to voltage-stabiliser tube DW by resistance R 4, the potentiometer RP of its series connection, when capacitor C 2 is charged to the peak point voltage of unijunction transistor VT1, unijunction transistor VT1 just triggers, and it is exported pulse and makes thyristor VS conducting.After the emitter voltage of unijunction transistor VT1 is fully decayed, unijunction transistor VT1 turn-offs, thyristor VS is once connection, voltage just drops to below the burning voltage of voltage-stabiliser tube DW, capacitor C 2 is charged again, because the voltage of voltage-stabiliser tube DW has been reduced to beyond its conducting region, the voltage drop when charging voltage depends on the electric current, resistance R 1 of motor M and thyristor VS conducting.Like this, when thyristor VS conducting, the charging circuit of capacitor C 2 depends on the electric current of motor, has just obtained feedback in this case, and this is remedied with regard to the problem that makes motor M torque when the low speed suffer a loss.Thyristor VS is when conducting, and capacitor C 2 just can not be charged to the high pressure that is enough to trigger again unijunction transistor VT1, yet capacitor C 2 can be charged to a certain numerical value that motor M electric current determines.If in a certain turn-on cycle, the electric current of motor M increases.Then the voltage on the capacitor C 2 also increases, so when following one-period began, capacitor C 2 did not just need just can be charged to so for a long time the peak point voltage of unijunction transistor VT1.In this case, trigger the angle and just be reduced (angle of flow is bigger), be added to voltage on the motor M with regard to proportional increase, effective torque is increased.
The diode VD5 series connection earth capacitance C1 that described unijunction transistor VT1 connects; the effect of diode VD5 and ground capacity C1 is to prevent that unijunction transistor VT1 from damaging at the positive feedback overtension of conduction period generation; the two plays a protective role at this; its control motor M rated current is in 6.5A; power is about 0.5kW; the suitable purpose of energy saving that reaches is used for family's electric fan, ceiling fan motor and single-phase motor thereof etc.
Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (2)
1. direct current machine battery saving arrangement, it is characterized in that: the full-wave bridge rectifier circuit that is constituted by diode VD1-VD4 by motor M series connection one, its output is connected with thyristor VS, the output of described thyristor VS is connected to unijunction transistor VT1, and the capacitor C 2 that unijunction transistor VT1 output connects is charged to voltage-stabiliser tube DW by resistance R 4, the potentiometer RP of its series connection.
2. direct current machine battery saving arrangement according to claim 1 is characterized in that: the diode VD5 series connection earth capacitance C1 that described unijunction transistor VT1 connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200370635U CN203119824U (en) | 2013-01-18 | 2013-01-18 | Direct current motor power-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200370635U CN203119824U (en) | 2013-01-18 | 2013-01-18 | Direct current motor power-saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119824U true CN203119824U (en) | 2013-08-07 |
Family
ID=48900137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200370635U Expired - Fee Related CN203119824U (en) | 2013-01-18 | 2013-01-18 | Direct current motor power-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618493A (en) * | 2013-12-04 | 2014-03-05 | 孙鲁西 | Single-winding single-phase AC motor control module |
-
2013
- 2013-01-18 CN CN2013200370635U patent/CN203119824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618493A (en) * | 2013-12-04 | 2014-03-05 | 孙鲁西 | Single-winding single-phase AC motor control module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINCHENG JINLI ELECTRIC CO., LTD. Free format text: FORMER OWNER: CHEN ZHILONG Effective date: 20140723 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 362803 QUANZHOU, FUJIAN PROVINCE TO: 048000 JINCHENG, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140723 Address after: 048000 1261 academy street, Jincheng, Shanxi Patentee after: Jincheng Jinli Electric Co., Ltd. Address before: 362803 Fujian province Quanzhou city Quangang district after long town Xu CuO Village Patentee before: Chen Zhilong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20160118 |
|
| EXPY | Termination of patent right or utility model |