CN2768370Y - Heat faster - Google Patents
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- CN2768370Y CN2768370Y CN 200420086361 CN200420086361U CN2768370Y CN 2768370 Y CN2768370 Y CN 2768370Y CN 200420086361 CN200420086361 CN 200420086361 CN 200420086361 U CN200420086361 U CN 200420086361U CN 2768370 Y CN2768370 Y CN 2768370Y
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- water
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Abstract
The utility model relates to a heat faster which comprises electric heating wires which are arranged in a casing and are connected with a power supply, a power supply indicator lamp and a water level control circuit connected with the power supply, wherein the water level control circuit comprises an A electrode and a B electrode which are arranged between the electric heating wires 2 and are connected with the power supply. The A electrode and the B electrode of the water level control circuit of the utility model are arranged in water. When water exists between the A electrode and the B electrode, the resistance between the A electrode and the B electrode is smaller. An adjustable resistor RP1 is adjusted, which leads a transistor VT1 to be saturated and conducted. The electric potential of a capacitor C point rises, which leads a transistor VT2 to be saturated and conducted. Therefore, a controllable silicon is conducted, which leads a resistance wire of the heat faster to be communicated with electricity to work. When no water exists between the A electrode and the B electrode, the resistance between the A electrode and the B electrode rises, and the base bias of the transistor VT1 descends, which leads the transistor VT1 to be cut off. The electric potential of the capacitor C point descends, which leads the base bias of the transistor VT2 to descend to be cut off and the controllable silicon loses gate voltage. When direct current which is rectified and is not filtered is equal to zero, the controllable silicon is cut off, therefore the resistance wire of the heat faster is disconnected with electricity and does not work.
Description
Technical field
The utility model relates to a kind of heater, particularly a kind of immersion heater.
Background technology
Immersion heater commonly used at present if use accidentally, can cause very serious consequence.As: immersion heater was switched on of a specified duration in water, and water is dryouied, and then burnt out thermos, caused short circuit, and serious can cause fire.When people when heating up water, water does not open also just that the power supply failed, regular meeting forgets and pulls out power supply; and wait when sending a telegram here, immersion heater will be worked under unwatched situation and be caused adverse consequences, and this incident is in the power supply centralized control; the school dormitory of period power supply, staff quarters etc. occur easily.Though commercially available immersion heater has alarm for boiling water, its function is not a continuously effective.Have high pressure vapour push piston after adopting water to open to make the immersion heater of power cut-off at present, but the defective of this product is, the unreliable and piston of performance is difficult for resetting.Also having a kind of is that employing is microcomputer monitored, and its shortcoming is that cost is too high.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provide a kind of and had only chance water, and water level is when reaching a certain height, could energising work, and when anhydrous or water level is not enough, the immersion heater of outage automatically.
For achieving the above object, the technical solution adopted in the utility model is: comprise the heating wire that is connected with power supply and the power supply indicator that are arranged in the housing, be characterized in, it also comprises the water-level control circuit that is connected with power supply, water-level control circuit comprises the A that is arranged between the heating wire, B two electrodes, one end of electrode A is connected with an end of resistance R 1, the other end of resistance R 1 links to each other with the end of adjustable resistance RP2, the collector electrode of the other end of adjustable resistance RP2 and triode VT1, one end of resistance R 3, one end of resistance R and the anode of power supply are connected, be connected with toggle switch K1 at adjustable resistance RP2 two ends, one end of electrode B links to each other with the end of the base stage of triode VT2 and adjustable resistance RP1, the emitter of triode VT2 is connected with the base stage of triode VT1 and an end of resistance R 2, the collector electrode of triode VT2 is connected with the other end of resistance R 3, triode VT2 emitter is connected with an end of resistance R 4, triode VT2 emitter also is connected with the silicon controlled control utmost point by toggle switch K2, be connected with LED by toggle switch K3, adjustable resistance RP1, resistance R 2, resistance R 4, LED is connected with the negative electrode of power supply with the silicon controlled anode, is connected on the former wiring utmost point two ends of heating wire after the power supply indicator crosstalk resistance.
Another characteristics of the present utility model are: power supply comprises the rectifier bridge heap AV that is connected with the 220V alternating current, anode and 60K/1W resistance one end of rectifier bridge heap AV join, the negative electrode of rectifier bridge heap AV joins with the negative electrode of voltage-stabiliser tube VS and the negative electrode of electrochemical capacitor C, the anode of the anode of voltage-stabiliser tube VS and electrochemical capacitor C and the 60K/1W resistance other end join, the adjustable resistance RP2 of water-level control circuit links to each other with the anode of the anode of voltage-stabiliser tube VS and electrochemical capacitor C, the adjustable resistance RP1 of water-level control circuit, resistance R 2, resistance R 4, LED, the negative electrode of silicon controlled anode and electrochemical capacitor C, the negative electrode of voltage-stabiliser tube VS is connected.
Because A, B the two poles of the earth of water-level control circuit of the present utility model are arranged in the water, when between A, B water being arranged, A, resistance is less between B, regulate adjustable resistance RP1 and make triode VT1 saturation conduction, capacitor C point current potential rises, and makes triode VT2 saturation conduction again, therefore controllable silicon conducting makes immersion heater resistance wire energising work.When between A, B when anhydrous, resistance rises between A, B, this moment, triode VT1 base bias descended, triode VT1 is ended, and this moment, capacitor C point current potential descended, and made the decline of triode VT2 base bias again and ended, controllable silicon pole tension out of hand, when the direct current of non-filtered after the rectification was zero, controllable silicon will end, thereby the outage of immersion heater resistance wire is not worked.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of the utility model water-level control circuit 5;
Fig. 3 is the schematic diagram of the utility model power supply 4;
Fig. 4 is the utility model integrated circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to Fig. 1, the utility model comprises heating wire 2 that is connected with power supply 4 and the power supply indicator 3 that is arranged in the housing 1, and it also comprises the water-level control circuit 5 that is connected with power supply 4.
Referring to Fig. 2, water-level control circuit 5 of the present utility model comprises A, B two electrodes that are arranged between the heating wire 2, and A, B two go into water electrode one end and can connect with water, and the collector electrode of the other end of A and triode VT1 and an end of resistance R 3 connect together with conductor.The end of the base stage of the other end of B and triode VT1 and adjustable resistance RP1 connects together with conductor.One end of the base stage of the emitter of triode VT1 and triode VT2 and resistance R 2 connects together with conductor.The other end of the collector electrode of triode VT2 and resistance R 3 connects together with conductor.One end of triode VT2 emitter and resistance R 4 and the silicon controlled control utmost point connect together with conductor.Adjustable resistance RP1, resistance R 2, resistance R 4 and controllable silicon negative electrode connect together with conductor.Controllable silicon is connected with immersion heater heating wire 2.Be connected on the former wiring utmost point of immersion heater heating wire two ends after the power supply indicator crosstalk resistance.
When between A, B water being arranged, A, resistance is less between B.The position of regulating adjustable resistance RP1 makes triode VT1 saturation conduction, and C point current potential rises, and makes triode VT2 saturation conduction again, and D point current potential rises.Therefore controllable silicon conducting makes immersion heater resistance wire energising work.When between A, B when anhydrous, resistance rises between A, B, and this moment, triode VT1 base bias descended, and triode VT1 is ended, and this moment, C point current potential descended, and makes the decline of triode VT2 base bias again and ends.D point current potential descends, controllable silicon pole tension out of hand, and when the direct current of non-filtered after the rectification was zero, controllable silicon will end, thereby the outage of immersion heater resistance wire is not worked.
Referring to Fig. 3, the rectifier bridge of power supply 4 of the present utility model heap AV the two poles of the earth connect the 220V alternating current, and rectifier bridge heap AV anode and 60K/1W resistance one terminate at together, and rectifier bridge heap AV negative electrode and voltage-stabiliser tube VS negative electrode and electrochemical capacitor C negative electrode are connected together.Voltage-stabiliser tube VS anode and electrochemical capacitor C anode and the 60K/1W resistance other end are connected together.
The 220V alternating current after the resistance step-down current limliting, is connected in series a voltage-stabiliser tube VS through bridge heap AV rectification, can form the low-voltage DC about 5V at voltage-stabiliser tube VS two ends, at last at voltage-stabiliser tube VS two ends parallel connection one filter capacitor C, has just formed the power supply of water-level control circuit.This power supply can only provide several milliamperes electric current, but because the water-level control circuit operating current is little, through experiment, this power supply meets the demands substantially.
Referring to Fig. 4, the A of the utility model water-level control circuit 5, B two go into water electrode one end and water connects, and the other end of A terminates at resistance R 1 one.The end of resistance R 1 other end and adjustable resistance RP2 connects together.One end of the collector electrode of the other end of RP2, triode 9013, resistance R 3, resistance R, voltage-stabiliser tube VS anode, electrochemical capacitor anode connect together with conductor.Toggle switch K1 the two poles of the earth are connected on adjustable resistance RP2 two ends respectively.The end of the base stage of the other end of B and triode 9013 and adjustable resistance RP1 connects together with conductor.One end of the base stage of the emitter of triode 9013 and another triode 9013 and resistance R 2 connects together with conductor.The other end of the collector electrode of triode 9013 and resistance R 3 connects together with conductor.Triode 9013 emitters terminate at one of resistance R 4, are connected with the silicon controlled control utmost point by toggle switch K2 then, are connected with LED by toggle switch K3.Adjustable resistance RP1, resistance R 2, resistance R 4, luminous and diode (LED), controllable silicon anode, electrochemical capacitor negative electrode, voltage-stabiliser tube negative electrode and rectifier bridge heap negative electrode are connected together with conductor.Be connected on the former wiring utmost point of immersion heater heating wire two ends after the power supply indicator crosstalk resistance.Rectifier bridge heap anode and 60K/1W resistance R one end, immersion heater heating wire are connected together, and the immersion heater heating wire other end and controllable silicon are connected together.Rectifier bridge heap AV the two poles of the earth connect the 220V alternating current.
K2 is also closed when toggle switch is dialled to one side K1 closure, and K3 disconnects.This moment, RP2 was by short circuit, and luminous indicating lamp LED disconnects, and the SCR control end is connected with voltage, immersion heater heating wire energising work.Regulate the sensitivity (and the resistance of water is to control influence of circuit) that RP1 can regulate water-level control circuit this moment.When toggle switch was dialled to another side, K1, K2 disconnected, K3 closure, RP2 place in circuit at this moment.Make SCR control end voltage out of hand because K2 disconnects, controllable silicon disconnects.Therefore the immersion heater heating wire cut-off quits work.Because the K3 closure makes indicator light LED place in circuit, the resistance value of regulating RP2 this moment just can be controlled the brightness of indicator light LED.
A, B the two poles of the earth are inserted in the water of appropriate ions concentration, regulate the resistance value of RP2, making indicator light LED is a moderate brightness.And when A, B the two poles of the earth inserted in the water of low ion concns, the brightness meeting of indicator light LED weakened.When A, B the two poles of the earth insert in the water of high ion concentration.The brightness meeting of indicator light LED strengthens.Therefore just can differentiate the ion concentration situation of being heated up water by the brightness of indicator light LED.
Claims (2)
1, a kind of immersion heater, comprise the heating wire [2] that is connected with power supply [4] and the power supply indicator [3] that are arranged in the housing [1], it is characterized in that: it also comprises the water-level control circuit [5] that is connected with power supply [4], water-level control circuit [5] comprises the A that is arranged between the heating wire [2], B two electrodes, one end of electrode A is connected with an end of resistance R 1, the other end of resistance R 1 links to each other with the end of adjustable resistance RP2, the collector electrode of the other end of adjustable resistance RP2 and triode VT1, one end of resistance R 3, one end of resistance R and the anode of power supply 4 are connected, be connected with toggle switch K1 at adjustable resistance RP2 two ends, one end of electrode B links to each other with the end of the base stage of triode VT2 and adjustable resistance RP1, the emitter of triode VT2 is connected with the base stage of triode VT1 and an end of resistance R 2, the collector electrode of triode VT2 is connected with the other end of resistance R 3, triode VT2 emitter is connected with an end of resistance R 4, triode VT2 emitter also is connected with the silicon controlled control utmost point by toggle switch K2, be connected with LED by toggle switch K3, adjustable resistance RP1, resistance R 2, resistance R 4, LED is connected with the negative electrode of silicon controlled anode with power supply [4], is connected on the former wiring utmost point two ends of heating wire [2] after power supply indicator [3] the crosstalk resistance.
2, immersion heater according to claim 1, it is characterized in that: said power supply [4] comprises the rectifier bridge heap AV that is connected with the 220V alternating current, anode and 60K/1W resistance one end of rectifier bridge heap AV join, the negative electrode of rectifier bridge heap AV joins with the negative electrode of voltage-stabiliser tube VS and the negative electrode of electrochemical capacitor C, the anode of the anode of voltage-stabiliser tube VS and electrochemical capacitor C and the 60K/1W resistance other end join, the adjustable resistance RP2 of water-level control circuit [5] links to each other with the anode of the anode of voltage-stabiliser tube VS and electrochemical capacitor C, the adjustable resistance RP1 of water-level control circuit [5], resistance R 2, resistance R 4, LED, the negative electrode of silicon controlled anode and electrochemical capacitor C, the negative electrode of voltage-stabiliser tube VS is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086361 CN2768370Y (en) | 2004-12-13 | 2004-12-13 | Heat faster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086361 CN2768370Y (en) | 2004-12-13 | 2004-12-13 | Heat faster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768370Y true CN2768370Y (en) | 2006-03-29 |
Family
ID=36682236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420086361 Expired - Fee Related CN2768370Y (en) | 2004-12-13 | 2004-12-13 | Heat faster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768370Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713586B (en) * | 2008-10-01 | 2013-03-13 | 共荣水技术株式会社 | A water temperature control device |
-
2004
- 2004-12-13 CN CN 200420086361 patent/CN2768370Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713586B (en) * | 2008-10-01 | 2013-03-13 | 共荣水技术株式会社 | A water temperature control device |
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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 |