CN204291432U - A kind of electric blanket voltage stabilizing safety circuit - Google Patents
A kind of electric blanket voltage stabilizing safety circuit Download PDFInfo
- Publication number
- CN204291432U CN204291432U CN201420664085.9U CN201420664085U CN204291432U CN 204291432 U CN204291432 U CN 204291432U CN 201420664085 U CN201420664085 U CN 201420664085U CN 204291432 U CN204291432 U CN 204291432U
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- China
- Prior art keywords
- electric blanket
- resistance
- chip
- voltage stabilizing
- diode
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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 provides a kind of electric blanket voltage stabilizing safety circuit, comprise chip IC, chip IC is provided with 1 ~ No. 8 eight wiring pin, No. 1 wiring pin of wherein chip IC is connected to bidirectional trigger diode D3, bidirectional trigger diode D3 is provided with M end and N end, No. 1 wiring pin is held with the M of bidirectional trigger diode D3 and is connected, the N termination of bidirectional trigger diode D3 has electric blanket heater coil L, resistance R1 is connected to after electric blanket heater coil L, diode D2 is connected to after resistance R1, and be connected with the positive terminal of diode D2, described electric blanket heater coil L is parallel with controlled adjuster RP1, No. 2 binding posts of AC power are also connected to after electric blanket heater coil L.The utility model has this circuit can realize voltage stabilization and current stabilization, avoid because supply voltage stirs suddenly the injury of generation, this circuit is provided with the variable resistor of Induction Heating blanket heat on the heater coil of electric blanket, can make the power-off of electric blanket heater coil, stops electric blanket heater coil to continue heating.
Description
Technical field
The utility model relates to electronic technology field, particularly relates to a kind of safety circuit, specifically refers to a kind of electric blanket voltage stabilizing safety circuit.
Background technology
At present, the utilization rate of electric blanket is very frequent in the north of cold, the loss that the fire occurred because of electric blanket every year causes to people's lives and properties is not within minority, wherein on the one hand because the underproof electric blanket inferior of some products comes into the market, on the other hand because electric blanket improper use causes short circuit, the initiation fires such as local overheating, but, consider from technical standpoint, cause the greatest problem of fire or circuit design exists drawback, electric blanket continuous heating is produced when causing people's improper use or forget and turn off power supply, the too high generation causing fire of local temperature.
Summary of the invention
The technical problems to be solved in the utility model is for the weak point existing for prior art, a kind of electric blanket voltage stabilizing safety circuit is provided, this circuit can realize voltage stabilization and current stabilization, avoid because supply voltage stirs suddenly the injury of generation, this circuit is provided with the variable resistor of Induction Heating blanket heat on the heater coil of electric blanket in addition, after temperature is too high, can make the power-off of electric blanket heater coil, stop electric blanket heater coil to continue heating, avoid the too high potential safety hazard caused of Yin Wendu.
Technical solution of the present utility model is, following a kind of electric blanket voltage stabilizing safety circuit is provided, comprise the chip IC that model is NE555, described chip IC is provided with 1 ~ No. 8 eight wiring pin, No. 1 wiring pin of wherein chip IC is connected to bidirectional trigger diode D3, bidirectional trigger diode D3 is provided with M end and N end, No. 1 wiring pin is held with the M of bidirectional trigger diode D3 and is connected, the N termination of bidirectional trigger diode D3 has electric blanket heater coil L, resistance R1 is connected to after electric blanket heater coil L, diode D2 is connected to after resistance R1, and be connected with the positive terminal of diode D2, resistance R4 is connected to after diode D2, indicator light LED2 is connected to after resistance R4, be connected with chip IC No. 7 wiring pins after indicator light LED2, described electric blanket heater coil L is parallel with controlled adjuster RP1, No. 2 binding posts of AC power are also connected to after electric blanket heater coil L.
As preferably, No. 1 wiring pin of chip IC is also connected to No. 1 binding post of AC power, resistance R1 is parallel with electric capacity C1.
As preferably, No. 8 wiring pins of chip IC are connected to resistance R2, after resistance R2, connect the N end of bidirectional trigger diode D3; No. 8 wiring pins of chip IC are also connected to indicator light LED1, are connected to resistance R3 after indicator light LED1, are connected after resistance R3 with AC power No. 1 binding post.
As preferably, No. 6 wiring pins of chip IC are connected to resistance R5, after resistance R5, connect the negative pole end of diode D2.
As preferably, No. 5 wiring pins of chip IC are connected with the negative pole end of diode D2, No. 5 wiring pins of described chip IC are also connected to triode Q1, and hold with the E of triode Q1 and be connected, the B end of triode Q1 controls, the C termination of triode Q1 has variable resistor RP3, and the sliding end of variable resistor RP3 is connected with chip IC No. 3 wiring pins.
As preferably, be connected to variable resistor RP2 after variable resistor RP3, be connected after variable resistor RP2 with AC power No. 1 binding post, variable-resistance sliding end is connected with No. 2 wiring pins of chip IC.
As preferably, No. 1 wiring pin of chip IC is also connected to variable resistor RP4, hold with the E of triode Q1 after variable resistor RP4 and be connected, the sliding end of variable resistor RP4 is connected with chip IC No. 4 wiring pins.
As preferably, described variable resistor RP4 is connected with electric capacity C3, and electric capacity C3 is the electric capacity with polarity, and the negative pole end of electric capacity C3 is connected with No. 1 wiring pin of AC power.
As preferably, the positive terminal of described electric capacity C3 is connected to voltage stabilizing didoe D4, and the positive terminal of electric capacity C3 is connected with the negative pole end of voltage stabilizing didoe D4, and the positive terminal of voltage stabilizing didoe D4 is connected to resistance R6, is connected after resistance R6 with the negative pole end of electric capacity C3.
As preferably, the E termination of described triode Q1 has electric capacity C2, ground connection after electric capacity C2.
Adopt the beneficial effect of above technical scheme: this circuit can realize voltage stabilization and current stabilization, avoid because supply voltage stirs suddenly the injury of generation, this circuit is provided with the variable resistor of Induction Heating blanket heat on the heater coil of electric blanket in addition, after temperature is too high, the power-off of electric blanket heater coil can be made, stop electric blanket heater coil to continue heating, avoid the too high potential safety hazard caused of Yin Wendu.
Accompanying drawing explanation
Fig. 1 is the structural representation of voltage stabilizing safety circuit of the present invention.
Embodiment
For ease of illustrating, below in conjunction with accompanying drawing, the electric blanket voltage stabilizing safety circuit of utility model is elaborated.
As shown in fig. 1, a kind of electric blanket voltage stabilizing safety circuit, comprise the chip IC that model is NE555, described chip IC is provided with 1 ~ No. 8 eight wiring pin, No. 1 wiring pin of wherein chip IC is connected to bidirectional trigger diode D3, bidirectional trigger diode D3 is provided with M end and N end, No. 1 wiring pin is held with the M of bidirectional trigger diode D3 and is connected, the N termination of bidirectional trigger diode D3 has electric blanket heater coil L, resistance R1 is connected to after electric blanket heater coil L, diode D2 is connected to after resistance R1, and be connected with the positive terminal of diode D2, resistance R4 is connected to after diode D2, indicator light LED2 is connected to after resistance R4, be connected with chip IC No. 7 wiring pins after indicator light LED2, described electric blanket heater coil L is parallel with controlled adjuster RP1, No. 2 binding posts of AC power are also connected to after electric blanket heater coil L.
No. 1 wiring pin of chip IC is also connected to No. 1 binding post of AC power, resistance R1 is parallel with electric capacity C1.
No. 8 wiring pins of chip IC are connected to resistance R2, after resistance R2, connect the N end of bidirectional trigger diode D3; No. 8 wiring pins of chip IC are also connected to indicator light LED1, are connected to resistance R3 after indicator light LED1, are connected after resistance R3 with AC power No. 1 binding post.
No. 6 wiring pins of chip IC are connected to resistance R5, after resistance R5, connect the negative pole end of diode D2.
No. 5 wiring pins of chip IC are connected with the negative pole end of diode D2, No. 5 wiring pins of described chip IC are also connected to triode Q1, and hold with the E of triode Q1 and be connected, the B end of triode Q1 controls, the C termination of triode Q1 has variable resistor RP3, and the sliding end of variable resistor RP3 is connected with chip IC No. 3 wiring pins.
Be connected to variable resistor RP2 after variable resistor RP3, be connected after variable resistor RP2 with AC power No. 1 binding post, variable-resistance sliding end is connected with No. 2 wiring pins of chip IC.
No. 1 wiring pin of chip IC is also connected to variable resistor RP4, and hold with the E of triode Q1 after variable resistor RP4 and be connected, the sliding end of variable resistor RP4 is connected with chip IC No. 4 wiring pins.
Described variable resistor RP4 is connected with electric capacity C3, and electric capacity C3 is the electric capacity with polarity, and the negative pole end of electric capacity C3 is connected with No. 1 wiring pin of AC power.
The positive terminal of described electric capacity C3 is connected to voltage stabilizing didoe D4, and the positive terminal of electric capacity C3 is connected with the negative pole end of voltage stabilizing didoe D4, and the positive terminal of voltage stabilizing didoe D4 is connected to resistance R6, is connected after resistance R6 with the negative pole end of electric capacity C3.
The E termination of described triode Q1 has electric capacity C2, ground connection after electric capacity C2.
Wherein, power supply is family expenses 220V AC power, the power of electric blanket heater coil L is 500 ~ 1000KW/h, resistance R1=600K Ω, resistance R2=50K Ω, resistance R3=900 Ω, resistance R4=1.2K Ω, resistance R5=30 Ω, resistance R6=50 Ω, electric capacity C1=60uF, electric capacity C2=500uF, electric capacity C3=500uF, diode D1 and diode D2 is the rectifier diode that model is IN4007, the model of bidirectional trigger diode D3 is HK3100, the model of voltage stabilizing didoe D4 is 1N4764, variable resistor RP1=100K Ω, variable resistor RP2=10K Ω, variable resistor RP3=6K Ω, variable resistor RP4=15K Ω, the model of triode Q1 is 3DG9011, indicator light LED1 is red, indicator light LED2 is yellow.
In the above-described embodiments, preferred forms of the present utility model is described, obviously, under inventive concept of the present utility model, still can make a lot of change.At this, should illustrate, any change made under inventive concept of the present utility model all will fall in protection range of the present utility model.
Claims (10)
1. an electric blanket voltage stabilizing safety circuit, comprise the chip IC that model is NE555, described chip IC is provided with 1 ~ No. 8 eight wiring pin, it is characterized in that: No. 1 wiring pin of wherein chip IC is connected to bidirectional trigger diode D3, bidirectional trigger diode D3 is provided with M end and N end, No. 1 wiring pin is held with the M of bidirectional trigger diode D3 and is connected, the N termination of bidirectional trigger diode D3 has electric blanket heater coil L, resistance R1 is connected to after electric blanket heater coil L, diode D2 is connected to after resistance R1, and be connected with the positive terminal of diode D2, resistance R4 is connected to after diode D2, indicator light LED2 is connected to after resistance R4, be connected with chip IC No. 7 wiring pins after indicator light LED2, described electric blanket heater coil L is parallel with controlled adjuster RP1, No. 2 binding posts of AC power are also connected to after electric blanket heater coil L.
2. electric blanket voltage stabilizing safety circuit according to claim 1, is characterized in that: No. 1 wiring pin of chip IC is also connected to No. 1 binding post of AC power, resistance R1 is parallel with electric capacity C1.
3. electric blanket voltage stabilizing safety circuit according to claim 1, is characterized in that: No. 8 wiring pins of chip IC are connected to resistance R2, connects the N end of bidirectional trigger diode D3 after resistance R2; No. 8 wiring pins of chip IC are also connected to indicator light LED1, are connected to resistance R3 after indicator light LED1, are connected after resistance R3 with AC power No. 1 binding post.
4. electric blanket voltage stabilizing safety circuit according to claim 1, is characterized in that: No. 6 wiring pins of chip IC are connected to resistance R5, connect the negative pole end of diode D2 after resistance R5.
5. electric blanket voltage stabilizing safety circuit according to claim 1, it is characterized in that: No. 5 wiring pins of chip IC are connected with the negative pole end of diode D2, No. 5 wiring pins of described chip IC are also connected to triode Q1, and hold with the E of triode Q1 and be connected, the B end of triode Q1 controls, the C termination of triode Q1 has variable resistor RP3, and the sliding end of variable resistor RP3 is connected with chip IC No. 3 wiring pins.
6. electric blanket voltage stabilizing safety circuit according to claim 5, it is characterized in that: after variable resistor RP3, be connected to variable resistor RP2, be connected with AC power No. 1 binding post after variable resistor RP2, variable-resistance sliding end is connected with No. 2 wiring pins of chip IC.
7. electric blanket voltage stabilizing safety circuit according to claim 1, it is characterized in that: No. 1 wiring pin of chip IC is also connected to variable resistor RP4, hold with the E of triode Q1 after variable resistor RP4 and be connected, the sliding end of variable resistor RP4 is connected with chip IC No. 4 wiring pins.
8. electric blanket voltage stabilizing safety circuit according to claim 7, is characterized in that: described variable resistor RP4 is connected with electric capacity C3, and electric capacity C3 is the electric capacity with polarity, and the negative pole end of electric capacity C3 is connected with No. 1 wiring pin of AC power.
9. electric blanket voltage stabilizing safety circuit according to claim 8, it is characterized in that: the positive terminal of described electric capacity C3 is connected to voltage stabilizing didoe D4, and the positive terminal of electric capacity C3 is connected with the negative pole end of voltage stabilizing didoe D4, the positive terminal of voltage stabilizing didoe D4 is connected to resistance R6, is connected after resistance R6 with the negative pole end of electric capacity C3.
10. electric blanket voltage stabilizing safety circuit according to claim 7, is characterized in that: the E termination of described triode Q1 has electric capacity C2, ground connection after electric capacity C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664085.9U CN204291432U (en) | 2014-11-10 | 2014-11-10 | A kind of electric blanket voltage stabilizing safety circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664085.9U CN204291432U (en) | 2014-11-10 | 2014-11-10 | A kind of electric blanket voltage stabilizing safety circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204291432U true CN204291432U (en) | 2015-04-22 |
Family
ID=52874556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420664085.9U Expired - Fee Related CN204291432U (en) | 2014-11-10 | 2014-11-10 | A kind of electric blanket voltage stabilizing safety circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204291432U (en) |
-
2014
- 2014-11-10 CN CN201420664085.9U patent/CN204291432U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |