CN2679551Y - Constant temp, and temp regulating and speed governing controller - Google Patents
Constant temp, and temp regulating and speed governing controller Download PDFInfo
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- CN2679551Y CN2679551Y CN 200320122868 CN200320122868U CN2679551Y CN 2679551 Y CN2679551 Y CN 2679551Y CN 200320122868 CN200320122868 CN 200320122868 CN 200320122868 U CN200320122868 U CN 200320122868U CN 2679551 Y CN2679551 Y CN 2679551Y
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Abstract
The utility model relates to a constant temp, temp regulating and speed governing controller used for the automatic electric blankets. It comprises a control box, a switch installed on the panel of the controlling box, an LED, and a control circuit inside of the box. The utility model is characterized in that the input end of the power circuit is connected with the 220V alternating current; the output end is respectively connected with the input end of the regulation circuit and the input end of the firing heating control circuit; the input end and the output end of the temperature detecting circuit are respectively connected with the output end of the regulation circuit and the input end of the temperature comparing circuit; the input end and the output end of the air conditioning circuit are respectively connected with the output end of the regulation circuit and the input end of the temperature comparing circuit; the input end and the output end of the controlling signal holding circuit are respectively connected with the output end of the temperature comparing circuit and the input end of the firing heating control circuit. The controller can adjust the temperature, and it is fast to be of constant temperature and to elevate temperature automatically; besides it is safe and reliable to use.
Description
Technical field
The utility model relates to a kind of controller that is used for electric blanket, but relates in particular to the constant temperature temperature adjustment speed setting controller of a kind of automatic constant-temperature, the adjustable Fast Heating of steady temperature.
Background technology
In recent years, electric blanket is as a kind of economical and practical household electrical appliance, progressively popularizes in China, and the controller of the electric blanket of prior art is located at switch, the indicator lamp on the control box and the control circuit that is located in the box constitutes by control box.But with regard to its controller quality, because there is defective in the circuit design of controller, the security of electric blanket fails to be solved at all, and what the heating line that has now adopted is individual layer heating line, can not sensitively feed back the high information of electric blanket local temperature, and the general fire prevention control device that uses, though can cut off electric current, it can not temperature adjustment, and firing rate is non-adjustable, use dangerous, also inconvenient.
Summary of the invention
It is unadjustable that the purpose of this utility model is to solve the controller temperature firing rate of prior art electric blanket, use inconvenience, and the defective that security is relatively poor, and provide a kind of improved constant temperature temperature adjustment speed setting controller, its energy automatic constant-temperature, temperature can be regulated, and firing rate is fast, and is safe and reliable.
The technical solution of the utility model is: a kind of constant temperature temperature adjustment speed setting controller comprises control box, is located at switch, light emitting diode on the control box panel, is located at the control circuit in this box; Be characterized in that described control circuit comprises: power circuit, mu balanced circuit, temperature sensing circuit, temperature regulation circuit, temperature comparison circuit, control signal holding circuit, heating control circuit;
The input of described power circuit is connected with the 220V alternating current, and its output is connected with the input of mu balanced circuit input and heating control circuit respectively;
The input of described temperature sensing circuit is connected with the output of mu balanced circuit, the input of temperature comparison circuit respectively with output;
The input of described temperature regulation circuit is connected with the output of mu balanced circuit, the input of temperature comparison circuit respectively with output;
The input of described control signal holding circuit is connected with the output of temperature comparison circuit, the input of heating control circuit respectively with output.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described power circuit is made up of switch S 1, resistance R 2, piezo-resistance VR1, light emitting diode EDL1, fuse F1; Series resistor R2, light emitting diode EDL1 between normally open contact one end of switch S 1 and the ground; Piezo-resistance VR1 is attempted by between two normally closed interlocks of switch S 1; Fuse F1 is serially connected between the normally-closed contact of the input of 220V alternating current and switch S 1.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described mu balanced circuit is by commutation diode D1, D2, and voltage-stabiliser tube D3, resistance R 1, capacitor C 1, C2 form; One end of capacitor C 1 and resistance R 1 and the normally opened contact of switch S 1 also connect, and the negative terminal of the other end of capacitor C 1 and resistance R 1 and the anode of diode D1, diode D2 also connects; D3's and capacitor C 2 be attempted by between the negative terminal and ground of diode D1 voltage-stabiliser tube.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described temperature sensing circuit is made up of temperature-sensitive electric wire RT1, amplifier IC1A, resistance R 5, R6, R7, capacitor C 3; One end of the end of temperature-sensitive electric wire RT1 and the port 3 of amplifier IC1A and resistance R 5 also connects, the other end ground connection of temperature-sensitive electric wire RT1; Be connected capacitor C 3 between the port 3 of amplifier ICIA and the ground; The end of the port 2 of amplifier ICIA and resistance R 6, R7 also connects; The other end of resistance R 6 is connected with the port one of amplifier ICIA, the other end ground connection of resistance R 7.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described temperature regulation circuit is made up of amplifier IC1B, resistance R 3, R4, adjustable potentiometer W1; The end of the port 5 of amplifier IC1B and resistance R 3, R4 also connects, and the port 6 of amplifier IC1B is connected with port 7; The other end of resistance R 3 is connected with the port 4 of the amplifier IC1A of temperature sensing circuit, but the adjustable side of adjustable potentiometer W1 is connected with the other end of resistance R 4.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described temperature comparison circuit is made up of amplifier IC1C, resistance R 8, R9; The port one 0 of amplifier is connected with resistance R 8 one ends, and resistance R 8 other ends are connected with the port 7 of amplifier IC1B; The port 9 of amplifier is connected with an end of resistance R 9, and the other end of resistance R 9 is connected with the port one of ICIA.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described control signal holding circuit is by amplifier IC1D, and diode D6 forms; The port one 2 of amplifier IC1D is connected with the port 8 of amplifier IC1C; The port one 3 of amplifier IC1D and the anode of its port one 4 and diode D6 also connect.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described heating control circuit is by heater wire J2, controllable silicon Q1, light emitting diode EDL2, and resistance R 11, R12, R13 form; One end of heater wire J2 and resistance R 10 and switch S 1 normally opened contact also connect, and the negative terminal of the other end of heater wire J2 and silicon controlled anode and light emitting diode EDL2 also connects; The anode of light emitting diode is connected with resistance R 10; The end of resistance R 11, R12 and silicon controlled control end also connect, and resistance R 11 other ends are connected with the negative terminal of diode D6; The other end ground connection of resistance R 12.
Above-mentioned constant temperature temperature adjustment speed setting controller, wherein, described heater wire J2 is made of the double-layer spiral heating line.
The utility model makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:
1, the utility model is because transducer wire adopts the double-layer spiral heating line; can feed back delicately because of improper use and cause the too high information of electric blanket local temperature; controller can cut off the power supply of electric blanket automatically, realizes automatic safe protective, and the accident of stopping takes place.
2, the utility model is owing to be provided with temperature sensing circuit and to the detection signal amplification, can get rid of the circuit maloperation.
3, the utility model can accurately be determined temperature spot owing to be provided with temperature comparison circuit, and it is fixed that constant temperature is more heated.
4, the utility model is owing to be provided with the heating control circuit that adopts the SCR control heater strip, can heating with full power, and programming rate is fast.
Description of drawings
To the description of an embodiment of the present utility model, can further understand the purpose of this utility model, specific structural features and advantage by following in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is the surface structure schematic diagram of the utility model constant temperature temperature adjustment speed setting controller.
Fig. 2 is the control circuit block diagram of the utility model constant temperature temperature adjustment speed setting controller.
Fig. 3 is the control circuit schematic diagram of the utility model constant temperature temperature adjustment speed setting controller.
The specific embodiment
See also Fig. 1, shown in Figure 2, constant temperature temperature adjustment speed setting controller comprises control box 1, is located at switch S 1, light emitting diode EDL1, EDL2, the adjustable potentiometer W1 on the control box panel and is located at control circuit 2 in this box 1; Control circuit 2 comprises: power circuit 21, mu balanced circuit 22, temperature sensing circuit 23, temperature regulation circuit 24, temperature comparison circuit 25, control signal holding circuit 26, heating control circuit 27; The input of power circuit 21 is connected with the 220V alternating current, and its output is connected with the input of mu balanced circuit 22 inputs and heating control circuit 27 respectively; The input of temperature sensing circuit 23 is connected with the output of mu balanced circuit 22, the input of temperature comparison circuit 25 respectively with output; The input of temperature regulation circuit 24 is connected with the output of mu balanced circuit 22, the input of temperature comparison circuit 25 respectively with output; The input of control signal holding circuit 26 is connected with the output of temperature comparison circuit 25, the input of heating control circuit 27 respectively with output.
See also shown in Figure 3ly, power circuit 1 is made up of switch S 1, resistance R 2, piezo-resistance VR1, light emitting diode EDL1, fuse F1; Series resistor R2, light emitting diode EDL1 piezo-resistance VR1 are attempted by between two normally closed interlocks of switch S 1 between normally open contact one end of switch S 1 and the ground; Fuse F1 is serially connected in the electrical input of 220V interchange and the normally-closed contact of switch S 1; In this circuit, adopt piezo-resistance VR1, the destruction that the electrophoresis that can prevent to occur in rainy day and the electrical network causes electric blanket, the user is in use safer.
Mu balanced circuit 22 is by commutation diode D1, D2, and voltage-stabiliser tube D3, resistance R 1, capacitor C 1, C2 form; One end of capacitor C 1 and resistance R 1 and the normally opened contact of switch S 1 also connect, and the negative terminal of the other end of capacitor C 1 and resistance R 1 and the anode of diode D1, diode D2 also connects; Voltage-stabiliser tube D3 and capacitor C 2 are attempted by between the negative terminal and ground of diode D1.
Control signal holding circuit 26 is by amplifier IC1D, and diode D6 forms; The port one 2 of amplifier IC1D is connected with the port 8 of amplifier IC1C; The port one 3 of amplifier IC1D and the anode of its port one 4 and diode D6 also connect.
The circuit theory of the utility model constant temperature temperature adjustment speed setting controller is: in power circuit and mu balanced circuit, when switch S 1 is connected alternating current 220V, alternating current 220V is by fuse F1, output dc voltage 25V behind process resistance R 1 and capacitor C 1, kenotron D1, the D2 is for control circuit provides operating voltage; Again through voltage-stabiliser tube D3 and capacitor C 2 output dc voltage 5V, for operational amplifier provides operating voltage.In temperature sensing circuit, temperature signal after amplifying by amplifier IC1, becomes temperature signal input temp comparison circuit by temperature-sensitive electric wire RT1 again; By the adjusting of the temperature controlling resistance W1 in the temperature regulation circuit, after IC1B amplifies, become also input temp comparison circuit of temperature control signals; By temperature comparison circuit to temperature signal and temperature control signals relatively after, become the control signal holding circuit that the input of heating control signal is used to protect control signal, import heating control circuit again; The heating control signal is by diode D6, resistance R 11, R12, can control the duty of controllable silicon (Q1), promptly reach the constant temperature point, automatically change the half-power pattern over to, temperature fluctuation is little, need heat to make, and changes full-power mode automatically over to, heat temperature raising speed is fast, can realize controlling the firing rate of heater wire.
When using, toggle switch, power-on, the rotary screw type adjustable potentiometer is regulated temperature, and electric blanket heats rapidly, and electric blanket energy automatic temperature measurement, constant temperature are simple to operate, safe and reliable.
The utility model constant temperature temperature adjustment speed setting controller, circuit design is succinct, owing to adopt the double-layer spiral heating line, can feed back delicately because of improper use and cause the too high information of electric blanket local temperature, controller will cut off rapidly the electric blanket power supply, thereby realizes automatic safe protective; And can accurately regulate temperature spot, and constant temperature is stable, and heat temperature raising speed is fast.
Claims (9)
1, a kind of constant temperature temperature adjustment speed setting controller comprises control box, is located at switch, light emitting diode on the control box panel, is located at the control circuit in this box; It is characterized in that: described control circuit comprises: power circuit, mu balanced circuit, temperature sensing circuit, temperature regulation circuit, temperature comparison circuit, control signal holding circuit, heating control circuit;
The input of described power circuit is connected with the 220V alternating current, and its output is connected with the input of mu balanced circuit input and heating control circuit respectively;
The input of described temperature sensing circuit is connected with the output of mu balanced circuit, the input of temperature comparison circuit respectively with output;
The input of described temperature regulation circuit is connected with the output of mu balanced circuit, the input of temperature comparison circuit respectively with output;
The input of described control signal holding circuit is connected with the output of temperature comparison circuit, the input of heating control circuit respectively with output.
2, constant temperature temperature adjustment speed setting controller according to claim 1, it is characterized in that: described power circuit is made up of switch S 1, resistance R 2, piezo-resistance VR1, light emitting diode EDL1, fuse F1; Series resistor R2, light emitting diode EDL1 between normally open contact one end of switch S 1 and the ground; Piezo-resistance VR1 is attempted by between two normally closed interlocks of switch S 1; Fuse F1 is serially connected between the normally-closed contact of the input of 220V alternating current and switch S 1.
3, constant temperature temperature adjustment speed setting controller according to claim 1 is characterized in that: described mu balanced circuit is by commutation diode D1, D2, and voltage-stabiliser tube D3, resistance R 1, capacitor C 1, C2 form; One end of capacitor C 1 and resistance R 1 and the normally opened contact of switch S 1 also connect, and the negative terminal of the other end of capacitor C 1 and resistance R 1 and the anode of diode D1, diode D2 also connects; Voltage-stabiliser tube D3 and capacitor C 2 are attempted by between the negative terminal and ground of diode D1.
4, constant temperature temperature adjustment speed setting controller according to claim 1, it is characterized in that: described temperature sensing circuit is made up of temperature-sensitive electric wire RT1, amplifier IC1A, resistance R 5, R6, R7, capacitor C 3; One end of the end of temperature-sensitive electric wire RT1 and the port 3 of amplifier IC1A and resistance R 5 also connects, the other end ground connection of temperature-sensitive electric wire RT1; Be connected capacitor C 3 between the port 3 of amplifier ICIA and the ground; The end of the port 2 of amplifier ICIA and resistance R 6, R7 also connects; The other end of resistance R 6 is connected with the port one of amplifier ICIA, the other end ground connection of resistance R 7.
5, constant temperature temperature adjustment speed setting controller according to claim 1, it is characterized in that: described temperature regulation circuit is made up of amplifier IC1B, resistance R 3, R4, adjustable potentiometer W1; The end of the port 5 of amplifier IC1B and resistance R 3, R4 also connects, and the port 6 of amplifier IC1B is connected with port 7; The other end of resistance R 3 is connected with the port 4 of the amplifier IC1A of temperature sensing circuit, but the adjustable side of adjustable potentiometer W1 is connected with the other end of resistance R 4.
6, constant temperature temperature adjustment speed setting controller according to claim 1, it is characterized in that: described temperature comparison circuit is made up of amplifier IC1C, resistance R 8, R9; The port one 0 of amplifier is connected with resistance R 8 one ends, and resistance R 8 other ends are connected with the port 7 of amplifier IC1B; The port 9 of amplifier is connected with an end of resistance R 9, and the other end of resistance R 9 is connected with the port one of ICIA.
7, constant temperature temperature adjustment speed setting controller according to claim 1 is characterized in that: described control signal holding circuit is by amplifier IC1D, and diode D6 forms; The port one 2 of amplifier IC1D is connected with the port 8 of amplifier IC1C; The port one 3 of amplifier IC1D and the anode of its port one 4 and diode D6 also connect.
8, constant temperature temperature adjustment speed setting controller according to claim 1 is characterized in that: described heating control circuit is by heater wire J2, controllable silicon Q1, light emitting diode EDL2, and resistance R 11, R12, R13 form; One end of heater wire J2 and resistance R 10 and switch S 1 normally opened contact also connect, and the negative terminal of the other end of heater wire J2 and silicon controlled anode and light emitting diode EDL2 also connects; The anode of light emitting diode is connected with resistance R 10; The end of resistance R 11, R12 and silicon controlled control end also connect, and resistance R 11 other ends are connected with the negative terminal of diode D6; The other end ground connection of resistance R 12.
9, constant temperature temperature adjustment speed setting controller according to claim 1, it is characterized in that: described heater wire J2 is made of the double-layer spiral heating line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122868 CN2679551Y (en) | 2003-12-26 | 2003-12-26 | Constant temp, and temp regulating and speed governing controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122868 CN2679551Y (en) | 2003-12-26 | 2003-12-26 | Constant temp, and temp regulating and speed governing controller |
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| Publication Number | Publication Date |
|---|---|
| CN2679551Y true CN2679551Y (en) | 2005-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320122868 Expired - Fee Related CN2679551Y (en) | 2003-12-26 | 2003-12-26 | Constant temp, and temp regulating and speed governing controller |
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| Country | Link |
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| CN (1) | CN2679551Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869980A (en) * | 2020-12-18 | 2021-06-01 | 垒途智能教科技术研究院江苏有限公司 | Intelligent medical electric sickbed |
-
2003
- 2003-12-26 CN CN 200320122868 patent/CN2679551Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869980A (en) * | 2020-12-18 | 2021-06-01 | 垒途智能教科技术研究院江苏有限公司 | Intelligent medical electric sickbed |
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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 |