CN204374810U - A kind of travel heat preserving underwear - Google Patents
A kind of travel heat preserving underwear Download PDFInfo
- Publication number
- CN204374810U CN204374810U CN201520080650.1U CN201520080650U CN204374810U CN 204374810 U CN204374810 U CN 204374810U CN 201520080650 U CN201520080650 U CN 201520080650U CN 204374810 U CN204374810 U CN 204374810U
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- China
- Prior art keywords
- temperature
- resistance
- underwear
- circuit
- electric wire
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- 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 discloses a kind of travel heat preserving underwear, comprise underwear body, be arranged at the electric wire of underwear body interior and the circuit board before being arranged at underwear.Electric wire and circuit board are connected to form loop.Be provided with temperature-control circuit in circuit board, temperature-control circuit comprises direct supply VDD, temperature sensing circuit and temperature and controls executive circuit.Temperature sensing circuit is by temperature detection thermistor RT, and composite amplifier VT1, VT2, potentiometer RP, operational amplifier LM1, resistance R1, R2, R3, R4, R5, R6, R8 form.Temperature controls executive circuit by transistor VT3, thyristor VT, silicon rectifier diode VD2, and resistance R7, R9 form.This travel heat preserving underwear, thermal circuit is very simple, only need with an operational amplifier and some peripheral circuits, simple and reliable, both can reach good heat insulation effect, underwear also can not be caused huge too fat to move, and applicable people travel outdoors threading.
Description
Technical field
The utility model belongs to daily necessities, relates to a kind of travel heat preserving underwear.
Background technology
Along with improving constantly of living standards of the people, travel outdoors and become a kind of trend.Sometimes, people can go remote cold and observe and learn from real life in meagrely-populated place, and so the electrothermal undergarment of warming becomes a kind of necessity.The temperature-control circuit of existing electrothermal undergarment is all too complicated, or adopts singlechip controller, or adopts toggle switch, and too much device causes underwear huge too fat to move, and heat-insulating property is unstable simultaneously.Therefore, arrange a kind of simple, light, comfortable and the underwear of insulation can be stablized, be more suitable for people and travel outdoors threading.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple, light, comfortable and can stablize the underwear of insulation, and applicable people travel outdoors threading.
The technical solution of utility model is as follows:
A kind of travel heat preserving underwear, comprises underwear body, is arranged at the electric wire of underwear body interior and the circuit board before being arranged at underwear.Electric wire and circuit board are connected to form loop.Be provided with temperature-control circuit in circuit board, described temperature-control circuit comprises direct supply VDD, temperature sensing circuit and temperature and controls executive circuit.Temperature sensing circuit is by temperature detection thermistor RT, and composite amplifier VT1, VT2, potentiometer RP, operational amplifier LM1, resistance R1, R2, R3, R4, R5, R6, R8 form.Temperature controls executive circuit by transistor VT3, thyristor VT, silicon rectifier diode VD2, and resistance R7, R9 form.The positive pole of direct supply VDD is connected with the negative pole of resistance R1, temperature detection thermistor RT, resistance R2, direct supply VDD successively.In composite amplifier VT1, VT2, the base stage of amplifier VT1 is connected between resistance R2 and temperature detection thermistor RT, and the collector of amplifier VT1 is connected with the inverting input of operational amplifier LM1 by resistance R3.The output terminal of operational amplifier LM1 is connected with the base stage of transistor VT3 by resistance R7.The collector of transistor VT3 is connected with the trigger end of thyristor VT.Silicon rectifier diode VD2 connects with resistance R9, light emitting diode VL, more in parallel with electric wire.Electric wire is connected with direct supply VDD by thyristor VT.
Beneficial effect:
Travel heat preserving underwear in the utility model, thermal circuit is very simple, only need with an operational amplifier and some peripheral circuits, simple and reliable, both underwear can have been made to reach good heat insulation effect, underwear also can not be caused huge too fat to move, applicable people travel outdoors threading.
Accompanying drawing explanation
Fig. 1 is travel heat preserving underwear schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of the thermal circuit of travel heat preserving underwear of the present utility model.
In figure, 1 is underwear body, and 11 is electric wire, and 12 is circuit board.
Embodiment
Below with reference to the drawings and specific embodiments, the utility model is described in further details:
As shown in Figure 1, a kind of travel heat preserving underwear, comprises underwear body, is arranged at the electric wire of underwear body interior and the circuit board before being arranged at underwear.Electric wire and circuit board are connected to form loop.Be provided with temperature-control circuit in circuit board, described temperature-control circuit comprises direct supply VDD, temperature sensing circuit and temperature and controls executive circuit.Temperature sensing circuit is by temperature detection thermistor RT, and composite amplifier VT1, VT2, potentiometer RP, operational amplifier LM1, resistance R1, R2, R3, R4, R5, R6, R8 form.Temperature controls executive circuit by transistor VT3, thyristor VT, silicon rectifier diode VD2, and resistance R7, R9 form.The positive pole of direct supply VDD is connected with the negative pole of resistance R1, temperature detection thermistor RT, resistance R2, direct supply VDD successively.In composite amplifier VT1, VT2, the base stage of amplifier VT1 is connected between resistance R2 and temperature detection thermistor RT, and the collector of amplifier VT1 is connected with the inverting input of operational amplifier LM1 by resistance R3.The output terminal of operational amplifier LM1 is connected with the base stage of transistor VT3 by resistance R7.The collector of transistor VT3 is connected with the trigger end of thyristor VT.Silicon rectifier diode VD2 connects with resistance R9, light emitting diode VL, more in parallel with electric wire.Electric wire is connected with direct supply VDD by thyristor VT.
The course of work is as follows: the resistance of regulator potentiometer RP, changes the magnitude of voltage of operational amplifier LM1 normal phase input end, can setup control temperature.
When underwear temperature is lower than the control temperature set, the resistance of temperature detection thermistor RT declines along with the decline of temperature, its forward voltage drop reduces along with the decline of temperature, in figure, the base stage of composite amplifier VT1 and A point current potential raise, composite amplifier VT1, VT2 saturation conduction, to make in operational amplifier LM1 inverting input and figure B point voltage lower than normal phase input end voltage, operational amplifier LM1 exports high level, make transistor VT3 conducting, thyristor VT is triggered and conducting, electric wire energising work (starting to heat).Along with the rising of temperature, the resistance of temperature detection thermistor RT increases along with the rising of temperature, the base stage of composite amplifier VT1 and A point current potential decline, composite amplifier VT1, VT2 end, and when temperature is higher than design temperature, in operational amplifier LM1 inverting input and figure, B point voltage is higher than in normal phase input end voltage, operational amplifier LM1 output low level, transistor VT3 is ended, and thyristor VT turns off, and the working power of electric wire is cut off.After stopping is heated, temperature starts slow decline, the resistance of temperature detection thermistor RT is declined, when temperature is lower than design temperature, operational amplifier LM1 is again because anti-phase input terminal voltage exports high level lower than normal phase input end voltage, make transistor VT3 and thyristor VT conducting, electric wire starts again to heat, and temperature starts slow rising.So go round and begin again, make controlled underwear temperature constant in set temperature value.
During thyristor VT conducting, light emitting diode VL lights, and represents that electric wire is heated; When thyristor VT ends, light emitting diode VL extinguishes, and represents that electric wire stops heating.
Provide some components and parts specifications as follows, also can select other models as required.
Resistance R1 ~ R9 all selects 1/4W metal film resistor.Potentiometer RP selects linear potentiometer.Silicon rectifier diode VD2 selects I N4007 type silicon rectifier diode.Light emitting diode VL selects the light emitting diode of φ 5mm, and choosing is red.Composite amplifier VT1, VT2 and transistor VT3 select 59013 or C8050 type silicon NPN transistor.
Travel heat preserving underwear in the utility model, only need with an operational amplifier and some peripheral circuits, simple and reliable, underwear both can have been made to reach good heat insulation effect, underwear also can not be caused huge too fat to move, and applicable people travel outdoors threading.
Claims (1)
1. a travel heat preserving underwear, is characterized in that, comprises underwear body, is arranged at the electric wire of underwear body interior and the circuit board before being arranged at underwear;
Described electric wire and circuit board are connected to form loop;
Be provided with temperature-control circuit in described circuit board, described temperature-control circuit comprises direct supply VDD, temperature sensing circuit and temperature and controls executive circuit;
Described temperature sensing circuit by temperature detection thermistor RT, composite amplifier VT1, VT2, potentiometer RP, operational amplifier LM1, resistance R1, R2, R3, R4, R5, R6, R8 form;
Described temperature controls executive circuit by transistor VT3, thyristor VT, silicon rectifier diode VD2, and resistance R7, R9 form;
The positive pole of described direct supply VDD is connected with the negative pole of resistance R1, temperature detection thermistor RT, resistance R2, direct supply VDD successively;
In described composite amplifier VT1, VT2, the base stage of amplifier VT1 is connected between resistance R2 and temperature detection thermistor RT, and the collector of amplifier VT1 is connected with the inverting input of operational amplifier LM1 by resistance R3;
The output terminal of described operational amplifier LM1 is connected with the base stage of transistor VT3 by resistance R7;
The collector of described transistor VT3 is connected with the trigger end of thyristor VT;
Described silicon rectifier diode VD2 connects with resistance R9, light emitting diode VL, more in parallel with electric wire;
Described electric wire is connected with direct supply VDD by thyristor VT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080650.1U CN204374810U (en) | 2015-02-05 | 2015-02-05 | A kind of travel heat preserving underwear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080650.1U CN204374810U (en) | 2015-02-05 | 2015-02-05 | A kind of travel heat preserving underwear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374810U true CN204374810U (en) | 2015-06-03 |
Family
ID=53331012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520080650.1U Expired - Fee Related CN204374810U (en) | 2015-02-05 | 2015-02-05 | A kind of travel heat preserving underwear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204374810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107006917A (en) * | 2017-05-09 | 2017-08-04 | 李秀彦 | A kind of maternity clothing |
-
2015
- 2015-02-05 CN CN201520080650.1U patent/CN204374810U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107006917A (en) * | 2017-05-09 | 2017-08-04 | 李秀彦 | A kind of maternity clothing |
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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: 20150603 Termination date: 20160205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |