CN2308109Y - Automatic temp. controller for electric blanket - Google Patents
Automatic temp. controller for electric blanket Download PDFInfo
- Publication number
- CN2308109Y CN2308109Y CN 97226534 CN97226534U CN2308109Y CN 2308109 Y CN2308109 Y CN 2308109Y CN 97226534 CN97226534 CN 97226534 CN 97226534 U CN97226534 U CN 97226534U CN 2308109 Y CN2308109 Y CN 2308109Y
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- CN
- China
- Prior art keywords
- temperature
- housing
- utility
- model
- power supply
- 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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Abstract
The utility model discloses an automatic temperature controller for an electric blanket, composed of a housing, a power supply plug, a power supply switch, a power supply indicator light, temperature pre-selecting switches, a temperature raising indicator light and a circuit plate. The utility model is characterized in that the left of one face of the housing is provided with a plurality of temperature pre-selecting switches in sequence, and the middle upper part of the housing surface is provided with the power supply indicator light and the temperature raising indicator light with the lower part provided with the power supply switch; the circuit plate is positioned in the housing and electronic elements such as a bidirectional controlled silicon, etc., are installed on the circuit plate. The utility model has the advantages of convenient operation, thermostatic control, multiple shifts of temperature selection, etc., and furthermore, the utility model also has the advantages of high safety and comfort, convenience and practicability, little power consumption, etc.
Description
The utility model relates to a kind of temperature control equipment, specifically a kind of electric blanket automatic temperature control device.
At present, the electric blanket of being sold on the market belongs to manual control switch's temperature-adjusting type mostly, and promptly temperature controller is provided with high temperature and low temperature shelves, when electric blanket temperature is too high or too low, the user can only pass through manual unlocking or powered-down switch, just can reach the purpose of control temperature.Use this type of electric blanket, bring very big inconvenience not only for people's ortho life, and, all can cause harmful effect when too high or too low for temperature, so there is certain weak point to health because the blanket temperature is non-constant.
The purpose of this utility model is, provides a kind of easy to use, can carry out many grades of temperature and select, and can keep the electric blanket automatic temperature control device of temperature constant, to reach the purpose of automatic constant-temperature control, comfort health-care.
The technical solution of the utility model is as follows: the electric blanket automatic temperature control device, constitute by housing, attaching plug, power switch, power light, intensification pilot lamp, temperature preselection switch and circuit board, it is characterized in that: the left side in the housing one side is equipped with some temperature preselection switches successively, the top is equipped with power light and intensification pilot lamp in the surface of shell, and the below then is equipped with power switch; Circuit board places in the housing, also is equipped with bidirectional triode thyristor, integrated operational amplifier, transistor, power transformer, some electric capacity and resistance on the circuit board.
The principle of work of this electric blanket automatic temperature control device is as follows: because temperature sensor is the instruction element of electronic temperature control device, thus adopt negative tempperature coefficient thermistor to make temperature sensor, and start-stop uses integrated operational amplifier as voltage comparator.At first preset a voltage, by operational amplifier the 6th pin output noble potential, the transistor conducting, the control utmost point G of bidirectional triode thyristor passes through R
1Obtain trigger current and conducting.After power-on, select in the temperature preselection switch, the temperature of electric blanket constantly raises, negative tempperature coefficient thermistor is that the resistance of temperature sensor constantly reduces, and when temperature reached preset value, the voltage of operational amplifier the 6th pin was with rising 1/3V, its output is by noble potential step-down current potential, transistor ends, and bidirectional triode thyristor closes, and electric blanket cuts off the power supply automatically.When electric blanket temperature descended, the voltage of operational amplifier the 6th pin reduced 1/3V, and operational amplifier output uprises current potential by electronegative potential, transistor conducting, the conducting of bidirectional triode thyristor trigger current, then electric blanket energising.So circulation reaches thermostatically controlled purpose.
The utility model is compared its advanced part with prior art and is: this electric blanket automatic temperature control device have easy to use, can carry out thermostatic control, can realize many grades of characteristics such as temperature selection, can't carry out thermostatic control thereby overcome in the prior art, use weak points such as inconvenience.In addition, the utility model also has characteristics such as safety and comfort, little power consumption.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit diagram,
Wherein, 1 housing, 2 temperature preselection switches, 3 power switches, 4 power lights, 5 intensification pilot lamp, 6 power transformer, 7 circuit boards, 8 bidirectional triode thyristors, 9 transistors, 10 electric capacity, 11 integrated operational amplifiers, 12 resistance, 13 attaching plugs.
1-2 is described further the utility model below in conjunction with accompanying drawing.Housing 1 made of plastic, the circuit board 7 that will process according to circuit requirement places in the housing 1 then, wherein is equipped with electronic components such as power transformer 6, bidirectional triode thyristor 8, transistor 9, electric capacity 10, integrated operational amplifier 11, resistance 12 on the circuit board 7.Power light 4 and the intensification pilot lamp 5 installing temperature preselection switch 2, power switch 3 in the appropriate position of circuit board 7 respectively and make with light emitting diode, and embed on the surface of housing 1 the last plug 13 of connecting with the mains at the edge of circuit board 7 respectively.Below just constitute the utility model.
Claims (1)
- The electric blanket automatic temperature control device, constitute by housing, attaching plug, power switch, power light, intensification pilot lamp, temperature preselection switch and circuit board, it is characterized in that: the left side in the housing one side is equipped with some temperature preselection switches successively, the top is equipped with power light and intensification pilot lamp in the surface of shell, and the below then is equipped with power switch; Circuit board places in the housing, also is equipped with bidirectional triode thyristor, integrated operational amplifier, temperature sensor, transistor, power transformer, some electric capacity and resistance on the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97226534 CN2308109Y (en) | 1997-09-19 | 1997-09-19 | Automatic temp. controller for electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97226534 CN2308109Y (en) | 1997-09-19 | 1997-09-19 | Automatic temp. controller for electric blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2308109Y true CN2308109Y (en) | 1999-02-17 |
Family
ID=33940240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97226534 Expired - Fee Related CN2308109Y (en) | 1997-09-19 | 1997-09-19 | Automatic temp. controller for electric blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2308109Y (en) |
-
1997
- 1997-09-19 CN CN 97226534 patent/CN2308109Y/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 |