CN204705919U - A kind of constant temperature control circuit - Google Patents
A kind of constant temperature control circuit Download PDFInfo
- Publication number
- CN204705919U CN204705919U CN201520264557.6U CN201520264557U CN204705919U CN 204705919 U CN204705919 U CN 204705919U CN 201520264557 U CN201520264557 U CN 201520264557U CN 204705919 U CN204705919 U CN 204705919U
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- China
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- commercial power
- power socket
- triode
- control circuit
- temperature control
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Abstract
The utility model discloses a kind of constant temperature control circuit, comprise commercial power socket, the external civil power of commercial power socket, one end of commercial power socket is connected with the positive pole of diode by electric capacity, the negative pole of voltage stabilizing diode respectively with the collector of triode, one end of slide rheostat is connected, the adjustable side of slide rheostat is also connected with the negative pole of diode, the base stage of triode is connected with the other end of slide rheostat, the base stage of triode is also connected with the other end of commercial power socket by thermistor, the emitter of triode is connected with the other end of commercial power socket by resistance, the emitter of triode is also connected with the trigger end of bidirectional thyristor, bidirectional thyristor is connected in commercial power socket, commercial power socket is used for grafting heating electrical appliance.Constant temperature control circuit of the present utility model, circuit is simple, can regulate sensitivity, easy to use, with low cost, is convenient to batch production, has a good application prospect.
Description
Technical field
The utility model relates to a kind of constant temperature control circuit, belongs to electronic circuit technology field.
Background technology
At present, the kind of temperature-control circuit on the market gets more and more, and circuit is more complicated also, and used electronic devices and components are also more, and cost is higher, be not easy to batch production, but simple constant-temperature circuit, sensitivity can not regulate, and uses inconvenience.
Utility model content
The utility model object is the temperature-control circuit in order to overcome on above market, and circuit is more complicated also, and used electronic devices and components are also more, cost is higher, is not easy to batch production, simple constant-temperature circuit, sensitivity can not regulate, inconvenient problem with use.Constant temperature control circuit of the present utility model, circuit is simple, can regulate sensitivity, easy to use, with low cost, is convenient to batch production, has a good application prospect.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of constant temperature control circuit, it is characterized in that: comprise commercial power socket XS, the external civil power of described commercial power socket XS, one end of described commercial power socket XS is connected with the positive pole of diode VD1 by electric capacity C1, the negative pole of described voltage stabilizing diode VD1 respectively with the collector of triode Q1, one end of slide rheostat RP is connected, the adjustable side of described slide rheostat RP is also connected with the negative pole of diode VD1, the base stage of described triode Q1 is connected with the other end of slide rheostat RP, the base stage of described triode Q1 is also connected with the other end of commercial power socket XS by thermistor RT, the emitter of described triode Q1 is connected with the other end of commercial power socket XS by resistance R1, the described emitter stating triode Q1 is also connected with the trigger end of bidirectional thyristor VT, described bidirectional thyristor VT is connected on commercial power socket XS, the two ends of described commercial power socket XS are also parallel with voltage stabilizing diode VD2, the negative pole of described voltage stabilizing diode VD2 is connected with the positive pole of diode VD1, the described positive pole of voltage stabilizing diode VD2 is connected with the other end of commercial power socket XS, described commercial power socket XS is used for grafting heating electrical appliance.
Aforesaid constant temperature control circuit, is characterized in that: described commercial power socket XS is also in series with fuse F1.
Aforesaid constant temperature control circuit, is characterized in that: described thermistor RT is negative tempperature coefficient thermistor.
Aforesaid constant temperature control circuit, is characterized in that: described commercial power socket XS is also provided with shift knob.
Aforesaid constant temperature control circuit, is characterized in that: described triode Q1 is NPN type triode.
Aforesaid constant temperature control circuit, is characterized in that: the base stage of described triode Q1 is also connected as current-limiting resistance R2.
The beneficial effects of the utility model are: constant temperature control circuit of the present utility model, and circuit is simple, can regulate sensitivity, easy to use, with low cost, are convenient to batch production, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of constant temperature control circuit of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of constant temperature control circuit, comprise commercial power socket XS, the external civil power of commercial power socket XS, one end of commercial power socket XS is connected with the positive pole of diode VD1 by electric capacity C1, the negative pole of voltage stabilizing diode VD1 respectively with the collector of triode Q1, one end of slide rheostat RP is connected, the adjustable side of slide rheostat RP is also connected with the negative pole of diode VD1, the base stage of triode Q1 is connected with the other end of slide rheostat RP, the base stage of triode Q1 is also connected with the other end of commercial power socket XS by thermistor RT, the emitter of triode Q1 is connected with the other end of commercial power socket XS by resistance R1, the emitter of triode Q1 is also connected with the trigger end of bidirectional thyristor VT, bidirectional thyristor VT is connected on commercial power socket XS, the two ends of commercial power socket XS are also parallel with voltage stabilizing diode VD2, the negative pole of voltage stabilizing diode VD2 is connected with the positive pole of diode VD1, the positive pole of voltage stabilizing diode VD2 is connected with the other end of commercial power socket XS, commercial power socket XS is used for grafting heating electrical appliance.
Described commercial power socket XS is also in series with fuse F1; protection circuit; prevent electric current excessive; burn out circuit or socket; described thermistor RT is negative tempperature coefficient thermistor, and commercial power socket XS is also provided with shift knob, automatically can control heating electrical appliance work or manually control; triode Q1 is NPN type triode, and the base stage of triode Q1 is also connected as current-limiting resistance R2.
Constant temperature control circuit principle of work of the present utility model is as follows, thermistor RT is 10k Ω 20 DEG C of resistances, after slide rheostat RP dividing potential drop, triode Q1 conducting, firing point can regulate slide rheostat RP resistance to regulate, the emitter of triode Q1 produces the direct supply of 3V, be added to the trigger end of bidirectional thyristor VT, bidirectional thyristor VT is triggered conducting, the heating electrical appliance be inserted on commercial power socket XS obtains electric work, when after heating electrical appliance heat temperature raising, the resistance of thermistor RT diminishes, when arriving uniform temperature, (can regulate according to slide rheostat RP), triode Q1 ends, the trigger voltage of bidirectional thyristor VT disappears, commercial power socket XS disconnects automatically, heating electrical appliance civil power quits work, until after temperature is reduced to triode Q1 conducting, at repetition said process, circuit is simple, sensitivity can be regulated, easy to use, with low cost, be convenient to batch production, have a good application prospect.
More than show and describe ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a constant temperature control circuit, it is characterized in that: comprise commercial power socket XS, the external civil power of described commercial power socket XS, one end of described commercial power socket XS is connected with the positive pole of diode VD1 by electric capacity C1, the negative pole of described diode VD1 respectively with the collector of triode Q1, one end of slide rheostat RP is connected, the adjustable side of described slide rheostat RP is also connected with the negative pole of diode VD1, the base stage of described triode Q1 is connected with the other end of slide rheostat RP, the base stage of described triode Q1 is also connected with the other end of commercial power socket XS by thermistor RT, the emitter of described triode Q1 is connected with the other end of commercial power socket XS by resistance R1, the described emitter stating triode Q1 is also connected with the trigger end of bidirectional thyristor VT, described bidirectional thyristor VT is connected on commercial power socket XS, the two ends of described commercial power socket XS are also parallel with voltage stabilizing diode VD2, the negative pole of described voltage stabilizing diode VD2 is connected with the positive pole of diode VD1, the described positive pole of voltage stabilizing diode VD2 is connected with the other end of commercial power socket XS, described commercial power socket XS is used for grafting heating electrical appliance.
2. constant temperature control circuit according to claim 1, is characterized in that: described commercial power socket XS is also in series with fuse F1.
3. according to claim a kind of constant temperature control circuit, is characterized in that: described thermistor RT is negative tempperature coefficient thermistor.
4. constant temperature control circuit according to claim 1, is characterized in that: described commercial power socket XS is also provided with shift knob.
5. constant temperature control circuit according to claim 1, is characterized in that: described triode Q1 is NPN type triode.
6. constant temperature control circuit according to claim 1, is characterized in that: the base stage of described triode Q1 is also connected as current-limiting resistance R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264557.6U CN204705919U (en) | 2015-04-29 | 2015-04-29 | A kind of constant temperature control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264557.6U CN204705919U (en) | 2015-04-29 | 2015-04-29 | A kind of constant temperature control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705919U true CN204705919U (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520264557.6U Expired - Fee Related CN204705919U (en) | 2015-04-29 | 2015-04-29 | A kind of constant temperature control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204705919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820450A (en) * | 2015-04-29 | 2015-08-05 | 苏州固基电子科技有限公司 | Constant temperature control circuit |
-
2015
- 2015-04-29 CN CN201520264557.6U patent/CN204705919U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820450A (en) * | 2015-04-29 | 2015-08-05 | 苏州固基电子科技有限公司 | Constant temperature control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160429 |