CN2656765Y - Electromagnetic valve controlled circuit for solar water heater - Google Patents
Electromagnetic valve controlled circuit for solar water heater Download PDFInfo
- Publication number
- CN2656765Y CN2656765Y CN 200320109276 CN200320109276U CN2656765Y CN 2656765 Y CN2656765 Y CN 2656765Y CN 200320109276 CN200320109276 CN 200320109276 CN 200320109276 U CN200320109276 U CN 200320109276U CN 2656765 Y CN2656765 Y CN 2656765Y
- Authority
- CN
- China
- Prior art keywords
- water
- control circuit
- water level
- input end
- utility
- 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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- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model relates to a solar energy water heater electromagnetism valve control circuit, of which the input end of the electromagnetism valve control circuit connects to a solar energy battery in parallel. The utility model can start the electromagnetism valve automatically to allow water to flow into while the water level in the water tank declines as long as the sunlight shines, and on the contrary, the water in the water tank can flow into when the water level reaches to the lower limited water level on the condition of having no sunshine but the proper water temperature,and thus the utility model improves the efficiency of the solar energy.
Description
Technical field:
The utility model relates to solar water heater, particularly to the improvement of its control circuit.
Background technique:
Prior solar water heater generally all is equipped with the solenoid valve control circuit of automatic water inlet, but the switching of its trigger signal control electromagnetic valve that only provides according to water level switch (sensor) can not effectively utilize solar energy.Such as winter, when water level was half chests, solenoid valve may will open water inlet, yet if at this moment no sunlight, the water in the water tank still be warm water, just is being fit to wash one's face and rinse one's mouth, and continuation is intake on the contrary towards low water temperature, must open heating power supply, produces meaningless power consumption.
Summary of the invention:
The purpose of this utility model provides a kind ofly has the sunlight can automatic water-filling, utilizes the water heater control circuit of solar energy to greatest extent.
The utility model solenoid valve control circuit is characterized in that solar cell is connected to the input end of this control circuit.The input end of control circuit also and be connected to water level switch and hand switch, wherein each water level switch is made of magnetic control dry reed-pipe and the float that has a magnet.Be serially connected with photo coupler between each input end of control circuit and the microprocessor.
The utility model is at the input end of solenoid valve control circuit and connect a solar cell, as long as have in solar radiation, in case drawdown in the water tank, opens solenoid valve water inlet automatically makes the interior water of water tank absorb solar energy to greatest extent.And if when in no sunlight water tank, still having appropriate water temperature, just can intake in the time of then can using the lower bound water level, improved solar energy utilization rate.
Description of drawings:
Accompanying drawing is the utility model embodiment electrical schematic diagram.
Embodiment:
When arbitrary input end of microprocessor IC (except that 1 end) was closed, its equal output signal made three utmost point amplifying tube conductings, and relay J 2 work make switch A closure.Mark 2 is the lower bound level sensor among the figure, in case this working sensor, the switch A of relay J 2 connects, and begins water inlet.3 is 25% water level, and light emitting diode D1 is bright, and 4 is 50% water level, and D2 is bright, and 5 is 75% water level, and D3 is bright, and 6 is full water level, and D4 is bright.Mark 7 is a hand switch, forces water inlet.Mark 1 is the manual heating switch, can drive relay J 1 and make electric heater switch B work.
Solar cell 9 is connected to the input end of IC, when sunlight, produces voltage on the solar cell 9, triggers microprocessor IC and makes relay J 2 work, switch A closure, solenoid valve F must establish by cable and open, and mark a is a water intake, b is a water outlet, to water tank water intake, stops to add water until full water level.If water tank less than and sunlight when disappearing, switch A disconnects, and stops to add water.
Photo coupler G is serially connected with respectively between IC and each input end, plays buffer action, to prevent that undesired signal from triggering IC and producing misoperation.
Each water level switch all adopts prior art magnetic control dry reed-pipe, and magnet is housed in the float, when float is other through certain water level dry reed-pipe, the dry reed-pipe action, provide trigger signal to IC, its advantage is that each dry reed-pipe can be totally-enclosed, the problem of having avoided other sensor water inlets to lose efficacy.
Claims (3)
1, a kind of solar water heater electromagnetic valve (F) control circuit is characterized in that solar cell (9) is connected to the input end of this control circuit.
2, control circuit according to claim 1, the input end that it is characterized in that control circuit also and be connected to water level switch (2), (3) (4), (5), (6) and hand switch (7), wherein each water level switch is made of magnetic control dry reed-pipe and the float that has a magnet.
3, control circuit according to claim 2 is characterized in that being serially connected with photo coupler (G) between each input end of control circuit and the microprocessor (IC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109276 CN2656765Y (en) | 2003-10-25 | 2003-10-25 | Electromagnetic valve controlled circuit for solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109276 CN2656765Y (en) | 2003-10-25 | 2003-10-25 | Electromagnetic valve controlled circuit for solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2656765Y true CN2656765Y (en) | 2004-11-17 |
Family
ID=34343100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320109276 Expired - Fee Related CN2656765Y (en) | 2003-10-25 | 2003-10-25 | Electromagnetic valve controlled circuit for solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2656765Y (en) |
-
2003
- 2003-10-25 CN CN 200320109276 patent/CN2656765Y/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 |