CN2138833Y - Time controller for domestic electric appliance - Google Patents
Time controller for domestic electric appliance Download PDFInfo
- Publication number
- CN2138833Y CN2138833Y CN 92238016 CN92238016U CN2138833Y CN 2138833 Y CN2138833 Y CN 2138833Y CN 92238016 CN92238016 CN 92238016 CN 92238016 U CN92238016 U CN 92238016U CN 2138833 Y CN2138833 Y CN 2138833Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- pin
- electric appliance
- switch
- 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 relates to a time controller for domestic electric appliance, which is composed of an amplifying transistor, a control integrated block, a DC relay used for executing the task; the inner part of the utility model is provided with a power supply, a switch, a rectifying and filtering voltage stabilizing circuit, a duplex press-button AN1, and a duplex press-button AN2, etc. The utility model has the advantages of simple structure, low cost and high reliability. The utility model is suitable for the timing control of the domestic electric appliance below 500W.
Description
The utility model relates to the household electrical appliances timing controller.
The timing device of existing household electrical appliance all is that mechanical type control, timing are short, and noise is big, and the manufacturing process complexity is used inconvenient.
The purpose of this utility model is at above-mentioned timer weak point, and a kind of entirely new kind household electrical appliances timing controller that is made of transistor and integrated circuit is provided.
The utility model is finished like this: it comprises power supply, switch, rectification filtering voltage stabilizing circuit, duplex button AN
1, AN
2, executive circuit is timed thing and constitutes, and the base stage of the triode BG of executive circuit is connected in duplex button AN
2With electrochemical capacitor C
3Positive pole between, emitter is connected with resistance R respectively
3, 2,6 pin of potentiometer W and ic chip.3 pin of IC and direct current relay C, make contact J link to each other, make contact J by K switch be timed thing FG and link to each other the collector electrode access positive source of 4,8 pin triode BG of ic chip.Potentiometer W is provided with a timing knob on panel.
The utility model adopts transistor to amplify, and it is big that integrated package control has control range, and cost is low, and is simple in structure, and reliable operation also adopts the 12V direct current relay to carry out, and make contact J adhesive and self-insurance all can realize timing controlled for the household electrical appliances below the 500W.
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is a circuit diagram of the present utility model.
Wherein: IC is NE555
With reference to accompanying drawing: power supply adopts civil power 220V50HZ, gets to the E end when K switch, presses duplex button AN
1, AN
2, through capacitor C
1, C
2, resistance R
1, R
2Diode D1, D2, voltage-stabiliser tube D3, behind the rectification step-down filtering voltage regulation, the current/voltage that flows into triode BG base stage and ic chip is controlled in the 12V, the base stage of triode BG is connected between the positive pole of duplex button AN2 and electrochemical capacitor C3, emitter is connected with resistance R 3 respectively, 2,6 pin of potentiometer W and ic chip, 3 pin of ic chip are connected in direct current relay C, make contact J; Make contact J by K switch be timed thing FG and link to each other.Potentiometer W is provided with a timing knob on panel.Because AN1, AN2 interlock, when pressing, gives AN2 electrochemical capacitor C3 charging, the base current IB of triode BG, triode conducting, in resistance R 3, the two ends of current potential W form the control voltage of a 2/3Vcc, thereby make the ic chip upset, and 3 pin of IC are output as zero, relay C has electric current to pass through, make contact J adhesive and self-insurance are timed FG by the K switch connection, realize the timing controlled of household electrical appliance.
Claims (2)
1, a kind of household electrical appliances timing controller, it comprises power supply, K switch, duplex button AN
1, AN
2, rectification filtering voltage stabilizing circuit, executive circuit and be timed thing FG and constitute, it is characterized in that: the base stage of the triode BG of executive circuit is connected duplex button AN
2With electrochemical capacitor C
3Between the positive pole, emitter is connected with resistance R respectively
3, 2,6 pin of the timely basic IC circuit of potentiometer W, 3 pin of IC connect relay C, make contact J; Make contact J by K switch be timed thing FG and link to each other; 4,8 pin of IC, the collector electrode of triode BG inserts positive source.
2, household electrical appliances timing controller according to claim 1 is characterized in that potentiometer W is provided with a timing knob on panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92238016 CN2138833Y (en) | 1992-10-22 | 1992-10-22 | Time controller for domestic electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92238016 CN2138833Y (en) | 1992-10-22 | 1992-10-22 | Time controller for domestic electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2138833Y true CN2138833Y (en) | 1993-07-21 |
Family
ID=33779143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92238016 Expired - Fee Related CN2138833Y (en) | 1992-10-22 | 1992-10-22 | Time controller for domestic electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2138833Y (en) |
-
1992
- 1992-10-22 CN CN 92238016 patent/CN2138833Y/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 | ||
| 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 |