CN104655231A - Automatic water level alarm circuit of solar water heater - Google Patents
Automatic water level alarm circuit of solar water heater Download PDFInfo
- Publication number
- CN104655231A CN104655231A CN201510077905.3A CN201510077905A CN104655231A CN 104655231 A CN104655231 A CN 104655231A CN 201510077905 A CN201510077905 A CN 201510077905A CN 104655231 A CN104655231 A CN 104655231A
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- water level
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- circuit
- alarm circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention discloses an automatic water level alarm circuit of a solar water heater. The automatic water level alarm circuit comprises a transformer B, full-wave rectifiers (D1 to D4), three LED (Light Emitting Diode) indicating lamps and three water level electrodes, wherein the full-wave rectifiers are used for supplying a direct-current (DC) working voltage of 12V to the circuit; an LED 1 is a power indicator, an LED 2 is a high-water-level indicator, an LED 3 is a low-water-level indicator, an electrode 3 is a common signal electrode, an electrode 1 is a high-water-level electrode, and an electrode 2 is a low-water-level electrode. The automatic water level alarm circuit further comprises a music module M, a power amplification circuit and a loudspeaker Y, wherein the music module M is provided with four ports, namely a port 1, a port 2, a port 3 and a port 4, the port 1 and the port 2 are input terminals, the port 1 is connected to output terminals of the full-wave rectifiers (D1 to D4), the port 2 is connected to an intermediate node of capacitors (C2 and C3), the port 3 serves as a signal output terminal and is connected to an input terminal of the power amplification circuit, the port 4 is grounded, and an output terminal of the power amplification circuit is connected to the loudspeaker Y so as to drive the loudspeaker Y to emit alarming sound. According to the automatic water level alarm circuit, a music alarm module is added into the existing water level alarm circuit, so that the alarming effect is more obvious and more user-friendly.
Description
Technical field
The present invention relates to the water level automatic alarm device of solar water heater, specifically disclose a kind of water level automatic alarm circuit of solar water heater.
Background technology
Now better-off, solar water heater has all been used by a lot of family, its applied solar energy, cleanliness without any pollution, practical inexpensive, is deeply liked.But the full warning device of most solar water heater water that market is sold is too simple and crude, has only established a return pipe, water flows out from return pipe and is easy to out in the cold, easily causes the waste of water.There is simple water level alarm afterwards, can the too high and too low two kinds of situations of water level of alarm water level, but its circuit only have employed the indication warning of LED, and warning effect is not obvious, inadequate hommization.
Summary of the invention
Only have employed the indication warning of LED for above-mentioned existing water level alarm, warning effect is not obvious, the shortcoming of inadequate hommization, the invention provides a kind of water level automatic alarm circuit of solar water heater.
Present invention employs following technical scheme: a kind of water level automatic alarm circuit of solar water heater, comprise transformer B, full wave rectifier D1 ~ D4(provides 12V direct-current working volts for circuit), 3 LED light and 3 level electrodes, wherein, LED1 is for being power supply instruction, LED2 is high water stage instruction, LED3 is low-water level instruction, electrode 3 is common signal electrode, electrode 1 is high water level electrode, electrode 2 is low water level electrode, also comprise music module M, power amplification circuit, loudspeaker Y, described music module M has four ports, wherein 1, 2 ends are input end, 1 end is connected to the output terminal of full wave rectifier D1 ~ D4, 2 ends are connected to electric capacity C2, the intermediate node place of C3, 3 ends are signal output part, be connected to the input end of power amplification circuit, 4 end ground connection, the output terminal of described power amplification circuit is connected to loudspeaker Y, chimes of doom is sent to promote loudspeaker Y.
Electrode 1 is arranged near side, electrode 1 case top, and electrode 2 is arranged on 1/4 place at the bottom of case, and electrode 3 is arranged at the bottom of case.
Under normal circumstances, water level is equivalent to unsettled lower than electrode 1 higher than electrode 2, BG1 base stage, and BG1 ends, and high water stage pilot lamp LED2 is not luminous.Electrode 2,3 is all under water, is equivalent to be connected to a resistance.The ed knot of BG3, R7 and electrode 2,3 form biasing circuit, make BG3 saturation conduction.At this moment BG2 ends because can not get enough bias voltages, and BG2 base voltage is zero, and low-water level pilot lamp LED3 is not luminous, and whole warning system is standby.
Water heater use time, the water level in water tank will gradually under, when water level is lower than electrode 2, electrode 2,3 disconnect, BG3 ends because its biasing circuit is obstructed.BG2 ties and R6 formation biasing circuit and conducting because of its eb.The differentiating circuit be made up of C3 and R4 obtains a direct impulse at C2, C3 node place while the sudden change of BG2 base potential, this Puled input is to 2 ends of music module MM, trigger M work, after M internal memory melody discharges once (about 30 second), the stop alarm voluntarily because of the 2 end triggerless pulses of music module MM.
In like manner, when adding cold water in water tank and exceeding electrode 1, BG1 conducting, BG1 collector is raised to noble potential by zero potential, and high water stage pilot lamp LED2 is luminous.The differentiating circuit that C2 and R4 is formed simultaneously makes C2, C3 node obtain a direct impulse, and this trigger action music module MM works, and sends alerting signal, and music module MM internal memory melody discharges once to report to the police afterwards and automatically terminates.
Beneficial effect of the present invention: add music alarm module in the circuit of existing water level alarm, warning effect is more obvious, more humane.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Wherein: 1, music module M; 2, power amplification circuit; 3, loudspeaker Y.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.
In FIG, a kind of water level automatic alarm circuit of solar water heater, comprise transformer B, full wave rectifier D1 ~ D4, 3 LED light and 3 level electrodes, wherein, LED1 is for being power supply instruction, LED2 is high water stage instruction, LED3 is low-water level instruction, electrode 3 is common signal electrode, electrode 1 is high water level electrode, electrode 2 is low water level electrode, also comprise music module M1, power amplification circuit 2, loudspeaker Y3, described music module M1 has four ports, wherein 1, 2 ends are input end, 1 end is connected to the output terminal of full wave rectifier D1 ~ D4, 2 ends are connected to electric capacity C2, the intermediate node place of C3, 3 ends are signal output part, be connected to the input end of power amplification circuit 2, 4 end ground connection, the output terminal of described power amplification circuit 2 is connected to loudspeaker Y3.
Electrode 1 is arranged near side, electrode 1 case top, and electrode 2 is arranged on 1/4 place at the bottom of case, and electrode 3 is arranged at the bottom of case.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the water level automatic alarm circuit of a solar water heater, comprise transformer B, full wave rectifier D1 ~ D4, 3 LED light and 3 level electrodes, wherein, LED1 is for being power supply instruction, LED2 is high water stage instruction, LED3 is low-water level instruction, electrode 3 is common signal electrode, electrode 1 is high water level electrode, electrode 2 is low water level electrode, it is characterized in that: also comprise music module M(1), power amplification circuit (2), loudspeaker Y(3), described music module M(1) there are four ports, wherein 1, 2 ends are input end, 1 end is connected to the output terminal of full wave rectifier D1 ~ D4, 2 ends are connected to electric capacity C2, the intermediate node place of C3, 3 ends are signal output part, be connected to the input end of power amplification circuit (2), 4 end ground connection, the output terminal of described power amplification circuit (2) is connected to loudspeaker Y(3).
2. a water level automatic alarm circuit for solar water heater, is characterized in that: electrode 1 is arranged near side, electrode 1 case top, and electrode 2 is arranged on 1/4 place at the bottom of case, and electrode 3 is arranged at the bottom of case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077905.3A CN104655231A (en) | 2015-02-14 | 2015-02-14 | Automatic water level alarm circuit of solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077905.3A CN104655231A (en) | 2015-02-14 | 2015-02-14 | Automatic water level alarm circuit of solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104655231A true CN104655231A (en) | 2015-05-27 |
Family
ID=53246631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510077905.3A Pending CN104655231A (en) | 2015-02-14 | 2015-02-14 | Automatic water level alarm circuit of solar water heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN104655231A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740536A (en) * | 2019-11-25 | 2020-01-31 | 四川力士达照明设备股份有限公司 | multifunctional indicator lamp control circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55102860A (en) * | 1979-01-30 | 1980-08-06 | Sharp Corp | Solar heat utilizing device |
| CN2539986Y (en) * | 2002-02-06 | 2003-03-12 | 瞿天树 | Electronic acousto-optical fully automatic water level controller |
| CN2718469Y (en) * | 2004-01-13 | 2005-08-17 | 杨龙涛 | Liquid level selecting alarm circuit for solar water heater |
| CN102954821A (en) * | 2011-08-29 | 2013-03-06 | 海洋王照明科技股份有限公司 | Water level warning circuit |
-
2015
- 2015-02-14 CN CN201510077905.3A patent/CN104655231A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55102860A (en) * | 1979-01-30 | 1980-08-06 | Sharp Corp | Solar heat utilizing device |
| CN2539986Y (en) * | 2002-02-06 | 2003-03-12 | 瞿天树 | Electronic acousto-optical fully automatic water level controller |
| CN2718469Y (en) * | 2004-01-13 | 2005-08-17 | 杨龙涛 | Liquid level selecting alarm circuit for solar water heater |
| CN102954821A (en) * | 2011-08-29 | 2013-03-06 | 海洋王照明科技股份有限公司 | Water level warning circuit |
Non-Patent Citations (2)
| Title |
|---|
| 张永军: "太阳能热水器水位报警器", 《电子世界》 * |
| 曹浩彤，周蔡逸: "自动水满报警器设计", 《科技广场》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740536A (en) * | 2019-11-25 | 2020-01-31 | 四川力士达照明设备股份有限公司 | multifunctional indicator lamp control circuit |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |