CN203629053U - Water shortage alarming and outage controlling circuit - Google Patents
Water shortage alarming and outage controlling circuit Download PDFInfo
- Publication number
- CN203629053U CN203629053U CN201320861673.7U CN201320861673U CN203629053U CN 203629053 U CN203629053 U CN 203629053U CN 201320861673 U CN201320861673 U CN 201320861673U CN 203629053 U CN203629053 U CN 203629053U
- Authority
- CN
- China
- Prior art keywords
- water
- pin
- state
- processing chip
- water level
- 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
Links
Abstract
The utility model provides a water shortage alarming and outage controlling circuit comprising a water level monitor K, a processing chip U1, a state-displaying light-emitting diode D1, a state-displaying light-emitting diode D2 and a switch relay. The type of the processing chip U1 is STC89C51, the P10 pin of the processing chip U1 is connected with the buoyancy water level monitor K, the P27 pin of the processing chip U1 is connected with the state-displaying light-emitting diode D1 displaying the normal water level state, the P26 pin of the processing chip U1 is connected with the state-displaying light-emitting diode D2 displaying the water level alarm state, and the P00 pin of the processing chip U1 is connected with a switch of a heating relay of a water heater. The basic single-chip microcomputer technology is adopted by the water shortage alarming and outage controlling circuit, the structure is simple, the technology is stable, and an alarm and an outage are accurate. When the water shortage alarming and outage controlling circuit is applied to a domestic water heater circuit, a user can safely use a domestic water heater. The situation that due to the fact that the water heater conducts heating under the condition of no water and water shortage, the water heater is damaged or a fire is caused is avoided.
Description
Technical field
The utility model relates to electronic technology field, is specially a kind of lack of water warning, power-off control circuit.
Background technology
People when using the such electric heater of water dispenser, when lack of water or water level are when very low, often forget and turn off power supply, if water heater is not reported to the police, power-down circuit will cause dry combustion method phenomenon, likely can damage water heater or cause fire.
Utility model content
The purpose of this utility model is: lack of water warning, power-off control circuit that a kind of water heater is provided.
In order to achieve the above object, the technical scheme adopting is: a kind of lack of water is reported to the police, power-off control circuit, and this circuit comprises water level monitor K, process chip U1, state demonstration light emitting diode D1 and D2, switch relay; Described process chip U1 model is STC89C51, the P10 pin of U1 is connected with buoyancy water level monitor K, the P27 pin of U1 connects water level normal condition and shows diode D1, the P26 pin of U1 connects water-level alarm state and shows diode D2, and the P00 pin of U1 connects water heater heating relay switch.
Adopt the beneficial effect of technique scheme to be: this lack of water is reported to the police, power-off control circuit uses basic singlechip technology, simple in structure, consistent, report to the police, power-off is accurate, apply in pot-type boiler circuit and just can relievedly use, the water heater that can not cause because of water heater no-water dry combustion damages or initiation fire.
Accompanying drawing explanation
Fig. 1 is that the utility model lack of water is reported to the police, the circuit theory schematic diagram of power-off control circuit.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is explained.
A kind of lack of water is reported to the police, power-off control circuit, and this circuit comprises water level monitor K, process chip U1, state demonstration light emitting diode D1 and D2, switch relay; Described process chip U1 model is STC89C51, the P10 pin of U1 is connected with buoyancy water level monitor K, the P27 pin of U1 connects water level normal condition and shows diode D1, the P26 pin of U1 connects water-level alarm state and shows diode D2, and the P00 pin of U1 connects water heater heating relay switch.
Claims (1)
1. lack of water warning, power-off control circuit, is characterized in that: this circuit comprises water level monitor K, process chip U1, state demonstration light emitting diode D1 and D2, switch relay; Described process chip U1 model is STC89C51, the P10 pin of U1 is connected with buoyancy water level monitor K, the P27 pin of U1 connects water level normal condition and shows diode D1, the P26 pin of U1 connects water-level alarm state and shows diode D2, and the P00 pin of U1 connects water heater heating relay switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861673.7U CN203629053U (en) | 2013-12-25 | 2013-12-25 | Water shortage alarming and outage controlling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861673.7U CN203629053U (en) | 2013-12-25 | 2013-12-25 | Water shortage alarming and outage controlling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629053U true CN203629053U (en) | 2014-06-04 |
Family
ID=50815521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320861673.7U Expired - Fee Related CN203629053U (en) | 2013-12-25 | 2013-12-25 | Water shortage alarming and outage controlling circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216431A (en) * | 2014-10-03 | 2014-12-17 | 彭全洪 | Novel water level monitoring alarming control device |
| CN107796127A (en) * | 2016-08-31 | 2018-03-13 | 江苏绿扬电子仪器集团有限公司 | Water heater water-shortage protection device |
-
2013
- 2013-12-25 CN CN201320861673.7U patent/CN203629053U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216431A (en) * | 2014-10-03 | 2014-12-17 | 彭全洪 | Novel water level monitoring alarming control device |
| CN104216431B (en) * | 2014-10-03 | 2017-02-15 | 彭全洪 | Novel water level monitoring alarming control device |
| CN107796127A (en) * | 2016-08-31 | 2018-03-13 | 江苏绿扬电子仪器集团有限公司 | Water heater water-shortage protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |