CN2379967Y - Silicon controlled rectifier thermoregulator - Google Patents
Silicon controlled rectifier thermoregulator Download PDFInfo
- Publication number
- CN2379967Y CN2379967Y CN 99232152 CN99232152U CN2379967Y CN 2379967 Y CN2379967 Y CN 2379967Y CN 99232152 CN99232152 CN 99232152 CN 99232152 U CN99232152 U CN 99232152U CN 2379967 Y CN2379967 Y CN 2379967Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- potentiometer
- another termination
- center head
- negative pole
- 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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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The utility model provides a controlled silicon temperature regulator. A circuit of the utility model comprises a trigger circuit, bidirectional controlled silicon and a controlled silicon protective circuit, wherein, the trigger circuit is composed of serial resistors R2, R4, a potentiometer R3, a charging capacitor C2 and a bidirectional diode T1. Two indicating lamps are connected to the circuit to display supply voltage and voltage regulation voltage, and the utility model has the advantages of directing viewing, convenience, stability and reliability and is suitable for the temperature regulation of the temperature control devices of electric furnaces, etc.
Description
The utility model relates to a kind of thermosistor that is used for firing equipment, particularly relates to a kind of controllable silicon thermosistor.
At present, the thermosistor of use adopts resistor or potentiometer change resistance to carry out pressure regulation more, but owing to can't confirm that whether temperature adjustment is accurate, makes the operator use inconvenience.
The purpose of this utility model be to provide a kind of can pressure regulation, can show the pressure regulation situation again, controllable silicon thermosistor easy to use simultaneously.
The utility model controllable silicon thermosistor is achieved in that its circuit comprises circuits for triggering, bidirectional triode thyristor and silicon controlled rectifier protecting circuit.Circuits for triggering are by potentiometer R3, the resistance R 2 and the R4 of series connection with it, and charging capacitor C2 and bidirectional diode T1 constitute; The silicon controlled rectifier protecting circuit is made of resistance R 1 and capacitor C 1.Circuit connecting relation is, mains switch K1 one termination power, another termination load RL, another termination bidirectional triode thyristor of RL T2 positive pole, connect power supply behind the negative pole series connection fuse B1, RL two ends indicator light D1 (redness) in parallel, be connected to the T2 positive and negative electrode after resistance R 1 and capacitor C 1 series connection, the T2 control utmost point connects T1 one end, another termination potentiometer of T1 R3 center head, the two ends of R3 are connected charging capacitor C2 one termination R3 center head after meeting R2 and R4 respectively again with the T2 positive and negative electrode, another termination T2 negative pole, indicator light D2 (green) two ends connect the mid point that is connected of R3 center head and R3 and R4 respectively.Potentiometer R3 after treatment is when being threaded to least significant end, and center head and its internal resistance disconnect.
The operation principle of the utility model controllable silicon thermosistor is, during power turn-on K switch 1, bidirectional triode thyristor is in disconnected state, charging capacitor C2 is charged through mains switch K1, load RL, series resistance R2, potentiometer R3 and fuse B1 by power supply, when C2 both end voltage VC2 reaches the turnover conducting voltage of T1, the T1 conducting, VC2 triggers the T2 conducting by T1, make load RL heating power, simultaneously with the circuits for triggering short circuit.When alternating voltage zero-crossing was reverse, T2 turn-offed, and C2 begins charging again, repeated said process.Because circuits for triggering work in alternating current circuit, exchange positive and negative half cycle and send a positive and negative pulse-triggered T2 respectively, make its each conducting once.Change resistance with potentiometer R3, make the C2 charging process quicken or prolong, change thereby make VC2 reach the T1 turnover conducting voltage time, change the T2 angle of flow, circuit output voltage is changed, thereupon when output voltage increases, the power that injects RL increases, and temperature and heat raise; Otherwise temperature, heat reduce, and realize the temperature adjustment purpose.
The advantage of the utility model controllable silicon thermosistor is, increases indicator light D1, can directly find out that from D1 load RL goes up the height of voltage, intuitive and convenient.Handle on potentiometer R3, disconnect from the A point when making center head be screwed into lowest order, at this moment, D2 connects to R4 by RL, T2, T1 and R3 center head, inserts power supply like this, and D2 is shinny, and the indication power supply adds.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model circuit connection diagram
Its circuit of the utility model controllable silicon thermosistor comprises circuits for triggering, bidirectional triode thyristor T2 and silicon controlled rectifier protecting circuit.Circuits for triggering are by potentiometer R3, the resistance R 2 and the R4 of series connection with it, and charging capacitor C2 and bidirectional diode T1 constitute; The silicon controlled rectifier protecting circuit is made of resistance R 1 and capacitor C 1.Circuit connecting relation is, mains switch K1 one termination power, another termination load RL, another termination bidirectional triode thyristor of RL T2 positive pole, connect power supply behind the negative pole series connection fuse B1, RL two ends indicator light D1 (redness) in parallel, resistance R 1 and capacitor C 1 series connection, all be connected to the T2 positive and negative electrode after resistance R 2, potentiometer R3, resistance R 4 series connection, the T2 control utmost point connects T1 one end, another termination of T1 R3 center head, C2 one termination R3 center head, another termination T2 negative pole, indicator light D2 (green) two ends connect the R3 center head respectively, and the mid point that is connected of R3 and R4.
Claims (2)
1; a kind of controllable silicon thermosistor; circuit comprises circuits for triggering; bidirectional triode thyristor and silicon controlled rectifier protecting circuit; it is characterized in that circuits for triggering are by potentiometer R3; the resistance R 2 and the R4 of series connection with it; charging capacitor C2 and bidirectional diode T1 constitute; circuit connecting relation is mains switch K1 one termination power, another termination load RL; another termination bidirectional triode thyristor of RL T2 positive pole; connect power supply behind the negative pole series connection fuse B1, RL two ends indicator light D1 in parallel just is being connected to T2 after resistance R 1 and capacitor C 1 series connection; negative pole; the T2 control utmost point connects T1 one end; another termination potentiometer of T1 R3 center head, the two ends of R3 connect respectively behind R2 and the R4 again with T2 just; negative pole connects, charging capacitor C2 one termination R3 center head; another termination T2 negative pole, indicator light D2 two ends connect the mid point that is connected of R3 center head and R3 and R4 respectively.
2, controllable silicon thermosistor as claimed in claim 1 is characterized in that after treatment potentiometer R3 when being threaded to least significant end, and center head and its internal resistance disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232152 CN2379967Y (en) | 1999-07-20 | 1999-07-20 | Silicon controlled rectifier thermoregulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232152 CN2379967Y (en) | 1999-07-20 | 1999-07-20 | Silicon controlled rectifier thermoregulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2379967Y true CN2379967Y (en) | 2000-05-24 |
Family
ID=34020894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232152 Expired - Fee Related CN2379967Y (en) | 1999-07-20 | 1999-07-20 | Silicon controlled rectifier thermoregulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2379967Y (en) |
-
1999
- 1999-07-20 CN CN 99232152 patent/CN2379967Y/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 |