CN2218492Y - Constant temperature controller of electric heating rug - Google Patents
Constant temperature controller of electric heating rug Download PDFInfo
- Publication number
- CN2218492Y CN2218492Y CN 94235915 CN94235915U CN2218492Y CN 2218492 Y CN2218492 Y CN 2218492Y CN 94235915 CN94235915 CN 94235915 CN 94235915 U CN94235915 U CN 94235915U CN 2218492 Y CN2218492 Y CN 2218492Y
- Authority
- CN
- China
- Prior art keywords
- electric blanket
- triode
- radiator valve
- utility
- blanket
- 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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- Central Heating Systems (AREA)
Abstract
The utility model discloses a constant temperature controller of electric heating rug, belonging to the field of the household appliance. The utility model is mainly characterized in that the constant temp controller of electrothermal blanket also comprises a sample taking bridge which is connected with a capacitance voltage reduction type half-wave rectification power supply and is composed of r 3, r 4, r < t 1 >, r < p 1 >, r 5; the base and the emitter of the audion V1 are connected with both ends of the sample taking bridge; the collector of the audion V1 is connected with the base of the audion v 2 through the r 6. The utility model overcomes the major defect of uncontrollable temperature in the prior art and can be used in the temperature control device of the electric blanket.
Description
The utility model relates to temperature control equipment, exactly is a kind of electric blanket radiator valve.
Electric blanket uses gauge tap at present, just can realize total current power supply or the power supply of half electric current, electric blanket can continue heating after sending electricity, even its low grade is sent, owing to there is not temperature control equipment, temperature also can continue to rise, and the frequent operation switch of having to during use is extremely inconvenient, this gauge tap does not have automatic circuit break function, because of the situation of the breaking out of fire that do not have in time to cut off the power supply occurs now and then, this gauge tap all adopts mechanical galvanically simultaneously, and the life-span is unreliable.
The purpose of this utility model is make to create and a kind ofly is subjected to temperature control, realizes automatic power on-off, safe in utilization, the life-span is reliable, small and exquisite, the with low cost new electrically heating blanket radiator valve of volume simultaneously.
The utility model is achieved in that
The electric blanket radiator valve comprises housing, temperature control knob, it is characterized in that described electric blanket radiator valve also include be connected with capacitor step-down halfwave rectifier power supply by R
3, R
4, R
T1, R
P1, R
5The sampling electric bridge of forming, triode V
1Base stage and emitter stage be connected to described sampling electric bridge two ends, described triode V
1Colelctor electrode pass through R
6With triode V
2Base stage connect R wherein
6It is the base stage current-limiting resistance.
Described capacitor step-down halfwave rectifier power supply is by C
1, V
D3, V
D4, V
D5, C
2Form.
When temperature is set potentiometer R
P1After the setting, ambient temperature is lower than design temperature, because of V
1Because base stage and launching base potential difference be less than 0.4V, V
1End; V
2The base stage no current ends, V
2Colelctor electrode output high potential, V
SThe triggering and conducting electric blanket obtains electrical heating, when temperature raises, and R
T1Resistance body descends, V
1Base potential reduces, when arriving design temperature, and V
1When base potential promptly drops to less than the about 0.5V of emitter stage current potential, V
1Conducting, V
2Corresponding conducting reaches full and closes V
2Colelctor electrode is reduced to electronegative potential V
SLose evoked potential and end, electric blanket stops to heat.So repeatedly, keep electric blanket temperature to be controlled at certain limit.
The utility model compared with prior art has following characteristics: the one, can realize power on/off automatically according to the temperature needs, and use comfortable; Two are to use safety, and when temperature rises to when setting value, outage automatically can initiation fire; The 3rd, the life-span is reliable, and cost is low, adopts all electronic component, every cost≤5-6 unit.
Now in conjunction with the accompanying drawings, enumeration one embodiment:
Fig. 1 is the user mode figure of electric blanket radiator valve, 1 temperature control knob wherein, 2 housings, 3 electric blankets.
Fig. 2 is the circuit diagram of electric blanket radiator valve, wherein V
D1Light emitting diode, R
1Resistance, R
2Resistance, C
1Electric capacity, V
D3Commutation diode, V
D4Commutation diode, V
D5Zener diode, C
2Electrochemical capacitor, R
3Resistance, R
4Resistance, R
5Resistance, V
1Triode, R
P1Potentiometer, R
T1Thermistor, V
2Triode, R
6Resistance, R
7Resistance, V
SControllable silicon, V
D2Light emitting diode, R
8Resistance.
The electric blanket radiator valve comprises housing (2), temperature control knob (1), described electric blanket constant temperature temperature device also comprise with by C
1, V
D3, V
D4, V
D5, C
2The capacitor step-down halfwave rectifier power supply of forming be connected by R
3, R
4, R
T1, R
P1, R
5The sampling electric bridge of forming, triode V
1Base stage and emission be connected to described sampling electric bridge two ends, described triode V
1Colelctor electrode pass through R
6With triode V
2Base stage connect.
C wherein
1Be 0.22 μ F, 400V, V
D3Be IN4007, V
D4Be IN4007, V
D5Be 18V, 1W, C
2Be 22 μ F, 25V.
R in the sampling electric bridge
3Be 10K Ω, 1/8W, R
4Be 10K Ω, 1/8W, R
T1Be 10K Ω, R
P1Be 4.7K Ω, R
5Be 6.2K Ω, 1/8W.
Triode V
1Be positive-negative-positive 9012, V
2Be positive-negative-positive 9013.
The remainder of implementing present technique is that those of ordinary skill of the same trade is known.
Claims (4)
1, a kind of electric blanket radiator valve comprises housing (2), temperature control knob (1), it is characterized in that described electric blanket radiator valve also comprise be connected with capacitor step-down halfwave rectifier power supply by R
3, R
4, R
T1, R
P1, R
5The sampling electric bridge of forming, triode V
1Base stage and emitter stage be connected to described sampling electric bridge two ends, described triode V
1Colelctor electrode pass through R
6With triode V
2Base stage connect.
2, by the described electric blanket radiator valve of claim 1, it is characterized in that described capacitor step-down halfwave rectifier power supply is by C
1, V
D3, V
D4, V
D5, C
2Form, wherein C
1Be 0.22 μ F, 400V, V
D3Be IN4007, V
D4IN4007, V
D5Be 18V, 1W, C
2Be 22 μ F, 25V.
3, by the described electric blanket radiator valve of claim 1, it is characterized in that R in the described sampling electric bridge
3Be 10K Ω, 1/8 W, R
4Be 10K Ω, 1/8 W, R
T1Be 10K Ω, R
P1Be 4.7K Ω, R
5Be 6.2K Ω, 1/8W.
4, by the described electric blanket radiator valve of claim 1, it is characterized in that described triode V
1Be positive-negative-positive 9012, V
2Be NPN type 9013.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235915 CN2218492Y (en) | 1994-11-28 | 1994-11-28 | Constant temperature controller of electric heating rug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235915 CN2218492Y (en) | 1994-11-28 | 1994-11-28 | Constant temperature controller of electric heating rug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2218492Y true CN2218492Y (en) | 1996-01-31 |
Family
ID=33844047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94235915 Expired - Fee Related CN2218492Y (en) | 1994-11-28 | 1994-11-28 | Constant temperature controller of electric heating rug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2218492Y (en) |
-
1994
- 1994-11-28 CN CN 94235915 patent/CN2218492Y/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 |