CN101865532A - Water heater power supply automatic controller - Google Patents
Water heater power supply automatic controller Download PDFInfo
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- CN101865532A CN101865532A CN 201010228114 CN201010228114A CN101865532A CN 101865532 A CN101865532 A CN 101865532A CN 201010228114 CN201010228114 CN 201010228114 CN 201010228114 A CN201010228114 A CN 201010228114A CN 101865532 A CN101865532 A CN 101865532A
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention belongs to a water heater power supply automatic controller, which relates to a controller of a water heater power supply. The invention is particularly suitable for a water heater in a kitchen. The water heater power supply automatic controller comprises a water flow sensor and a control circuit, wherein the water flow rate sensor is arranged at a water outlet pipe opening of the water heater, a detection head of the water flow rate sensor is arranged inside a water outlet pipe of the water heater, a signal output line is connected with the control circuit through a lead out hole arranged on a water pipe, the control circuit is arranged besides a power supply of a water heater case, a required DC power supply VCC can be obtained after the rectification on the control circuit by a rectification integration block, the output end of the water flow rate sensor is connected in series with the input end of the control circuit, the control circuit comprises a voltage comparator LM111, a resistor R1, a capacitor C1, a triggering device FF1, a triggering device FF2, a crystal triode V1, a relay K, an adjustable resistor RP and a crystal diode VD1. The water flow rate when a hot water faucet is opened is tested by the water flow rate sensor, and the on-off state of the water heater power supply is controlled through the control circuit.
Description
Technical field
What water heater power supply automatic controller of the present invention related to is a kind of controller of water heater power supply, be specially adapted to the precious water heater of kitchen hot water and use, and be a kind of device that can control the water heater power supply switch by the flow of water in the water pipe automatically.
Background technology
Common in the market kitchen hot water treasured, when house decoration, be installed in the cabinet usually, and be in "on" position for a long time, so not only to exerting an influence in equipment service life itself and safety for attractive in appearance, and wasted a large amount of electric energy, if often switch is also very inconvenient for economize on electricity.
Summary of the invention
The objective of the invention is provides a kind of water heater power supply automatic controller at above-mentioned weak point, discharge when utilizing the water flow sensor test to open the hot water tap in the water pipe, control the water heater power supply break-make by control circuit, water heater power supply is not closed when not opening the hot water tap, water heater power supply is opened automatically and is heated when needs are opened the hot water tap with hot water, thereby realizes the automatic control of water heater power supply.
Water heater power supply automatic controller of the present invention takes following technical scheme to realize: water heater power supply automatic controller comprises water flow sensor and control circuit, water flow sensor is installed in the effluent pipe mouth of water heater, the detection head of water flow sensor is installed in the outlet pipe inside of water heater, and the fairlead of output line on outlet pipe is connected with control circuit; Control circuit is installed in by the power supply of outer cover of water heater, and control circuit utilizes self AC power of water heater, the required dc source VCC of controlled circuit after the rectification of rectification integrated package; The output of water flow sensor is connected with the control circuit input, control circuit comprises voltage comparator LM111, resistance R 1, capacitor C 1, trigger FF1, trigger FF2, transistor V1, relay K, adjustable resistance RP and crystal diode VD1, the in-phase input end P1 of voltage comparator LM111 links to each other with water flow sensor, the inverting input P2 of voltage comparator LM111 links to each other with adjustable resistance RP, the P4 pin ground connection of voltage comparator LM111, the output of voltage comparator links to each other with resistance R 1 one ends, the other end of resistance R 1 links to each other with the input of trigger FF1, and through capacitor C 1 ground connection, trigger FF2 and trigger FF1 are in series, the output of trigger FF2 links to each other with the base stage of transistor V1, the colelctor electrode of transistor V1 links to each other with relay K one end, the relay K other end links to each other with water heater, crystal diode VD1 in parallel on relay K, wherein resistance R 1 can compare device LM111 output current by deboost; Capacitor C 1 is in order to the stability of the signal of raising input trigger FF1; Transistor VD1 is used for the coil of protective relay K.
Described water flow sensor adopts commercially available JR-A368-3 type water flow sensor.
Described relay K adopts commercially available CD4098 relay.
Described fairlead adopts the sealing of high pressure rubber sealing ring, in case leak.
Described rectification integrated package adopts the DB107 rectifier.
Described trigger FF1 and trigger FF2 adopt commercially available 40106A Schmidt trigger.
Operation principle: water flow sensor is to utilize the Hall effect of Hall element to measure the Physics of Magnetism amount.Positive pole at Hall element seals in load resistance, and the DC voltage of logical simultaneously upward 5V also makes the sense of current and the magnetic direction quadrature.When water promotes the magnet rotor rotation by the turbine switch housing, produce the rotating excitation field of different magnetic poles, cutting magnetic induction is answered line, produces impulse level.Because the output pulse signal frequency of Hall element is directly proportional with the rotating speed of magnet rotor, the rotating speed of rotor is directly proportional with discharge again, thereby judges by controller the value of discharge has determined whether open water heater power supply by the output signal of water flow sensor.
The output signal of water flow sensor adopts voltage comparator to analyze among the present invention.Voltage comparator is an integrated transporting discharging nonlinear application circuit, and it is compared an analog quantity voltage signal and one with reference to fixed voltage, the two amplitude equate near, output voltage will produce transition, corresponding output high level or low level.Transmission characteristic: when Ui＜Ur, amplifier output Uo low level; When Ui＞Ur, amplifier output Uo high level.Therefore, be the boundary with Ur, when input voltage Ui changed, output reflected two states, high potential and electronegative potential.
Adopt integrated voltage comparator LM111 analog signal conversion can be become binary signal, promptly had only the discrete signal of high level and low level two states.Be characterized in lower than the open-loop gain of integrated transporting discharging, offset voltage is big, and common-mode rejection ratio is little; But its response speed is fast, and the propagation delay time is short, and need not add amplitude limiter circuit and just can directly drive integrated digital circuits such as TTL, CMOS and ECL; Some chip belt load capacity is very strong, also can directly drive relay and indicator lamp.
Signal can be subjected to the interference of each side in practice, and can there be many clutter compositions in waveform, need handle waveform with trigger FF1 and trigger FF2, has utilized Schmidt trigger to carry out waveform processing among the present invention.The Schmidt trigger most important character is can input signal is shaped to the precipitous rectangular pulse in edge changing slowly.Simultaneously, Schmidt trigger also can utilize its hysteresis voltage to improve the antijamming capability of circuit.
According to the difference of water heater type, select best startup flow, can realize that ultralow pressure (0.02MPa is following) starts.
Water flow sensor is installed in the effluent pipe mouth of water heater, when the user opens the hot water tap, water flow sensor detects and exports high level when water pipe water flows, the P2 pin current potential of voltage comparator LM111 is greater than the P3 pin current potential of voltage comparator LM111, the P7 pin output high level of voltage comparator LM111, process trigger FF1 and trigger FF2 two-stage trigger are to waveform shaping, and transistor V1 is in conducting state, water heater power supply is connected in the relay K action; When closing tap, the water flow sensor output low level, the P2 pin current potential of voltage comparator LM111 is less than the P3 pin current potential of voltage comparator LM111, the P7 pin output low level of voltage comparator LM111, through the two-stage Schmidt trigger to waveform shaping, transistor V1 is in cut-off state, and relay K is failure to actuate, and the water heater outage is not worked.
Reasonable in design, the accuracy of judgement of water heater power supply automatic controller of the present invention, discharge when utilizing the water flow sensor test to open the hot water tap in the water pipe, control the break-make of water heater power supply by control circuit, water heater power supply is not closed when not opening the hot water tap, water heater power supply is opened automatically and is heated when needs are opened the hot water tap with hot water, thereby realizes the automatic control of water heater power supply.Saved the energy widely, for people's life provides great convenience.
Description of drawings
The invention will be further described below with reference to accompanying drawing:
Fig. 1 is the circuit theory diagrams of water heater power supply automatic controller of the present invention.
Fig. 2 is the user mode schematic diagram of water heater power supply automatic controller of the present invention.
The specific embodiment
With reference to accompanying drawing 1～2, water heater power supply automatic controller water heater power supply automatic controller of the present invention comprises water flow sensor 1 and control circuit, water flow sensor 1 is installed in 3 mouthfuls of the outlet pipes of water heater 2, the detection head of water flow sensor 1 is installed in outlet pipe 3 inside of water heater 2, and the fairlead of output line on outlet pipe is connected with control circuit; It is other that control circuit is installed in the power supply 4 of water heater 2 shells, and control circuit utilizes self AC power required dc source VCC of controlled circuit after the rectification of rectification integrated package of water heater 2; The output of water flow sensor 1 is connected with the control circuit input, control circuit comprises voltage comparator LM111, resistance R 1, capacitor C 1, trigger FF1, trigger FF2, transistor V1, relay K, adjustable resistance RP and crystal diode VD1, the in-phase input end P1 of voltage comparator LM111 links to each other with water flow sensor, the inverting input P2 of voltage comparator LM111 links to each other with adjustable resistance RP, the P4 pin ground connection of voltage comparator LM111, the output of voltage comparator links to each other with resistance R 1 one ends, the other end of resistance R 1 links to each other with the input of trigger FF1, and through capacitor C 1 ground connection, trigger FF2 and trigger FF1 are in series, the output of trigger FF2 links to each other with the base stage of transistor V1, the colelctor electrode of transistor V1 links to each other with relay K one end, the relay K other end links to each other with water heater, crystal diode VD1 in parallel on relay K, wherein resistance R 1 can compare device LM111 output current by deboost; Capacitor C 1 is in order to the stability of the signal of raising input trigger FF1; Transistor VD1 is used for the coil of protective relay K.
Described water flow sensor 1 adopts commercially available JR-A368-3 type water flow sensor.
Described relay K adopts commercially available CD4098 relay.
Described fairlead adopts the sealing of high pressure rubber sealing ring, in case leak.
Described rectification integrated package adopts the DB107 rectifier.
Described trigger FF1 and trigger FF2 adopt commercially available 40106A Schmidt trigger.
Claims (6)
1. water heater power supply automatic controller, it is characterized in that comprising water flow sensor and control circuit, water flow sensor is installed in the effluent pipe mouth of water heater, the detection head of water flow sensor is installed in the outlet pipe inside of water heater, and the fairlead of output line on water pipe is connected with control circuit; Control circuit is installed in by the power supply of outer cover of water heater, and control circuit obtains required dc source VCC after the rectification of rectification integrated package;
The output of water flow sensor is connected with the control circuit input, control circuit comprises voltage comparator LM111, resistance R 1, capacitor C 1, trigger FF1, trigger FF2, transistor V1, relay K, adjustable resistance RP and crystal diode VD1, the in-phase input end P1 of voltage comparator LM111 links to each other with water flow sensor, the inverting input P2 of voltage comparator LM111 links to each other with adjustable resistance RP, the P4 pin ground connection of voltage comparator LM111, the output of voltage comparator links to each other with resistance R 1 one ends, the other end of resistance R 1 links to each other with the input of trigger FF1, and through capacitor C 1 ground connection, trigger FF2 and trigger FF1 are in series, the output of trigger FF2 links to each other with the base stage of transistor V1, the colelctor electrode of transistor V1 links to each other with relay K one end, the relay K other end links to each other with water heater, crystal diode VD1 in parallel on relay K.
2. water heater power supply automatic controller according to claim 1 is characterized in that described water flow sensor adopts JR-A368-3 type water flow sensor.
3. water heater power supply automatic controller according to claim 1 is characterized in that described relay K adopts the CD4098 relay.
4. water heater power supply automatic controller according to claim 1 is characterized in that described fairlead adopts the sealing of high pressure rubber sealing ring.
5. water heater power supply automatic controller according to claim 1 is characterized in that described rectification integrated package adopts the DB107 rectifier.
6. water heater power supply automatic controller according to claim 1 is characterized in that described trigger FF1 and trigger FF2 adopt the 40106A Schmidt trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228114 CN101865532A (en) | 2010-07-15 | 2010-07-15 | Water heater power supply automatic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228114 CN101865532A (en) | 2010-07-15 | 2010-07-15 | Water heater power supply automatic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101865532A true CN101865532A (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010228114 Pending CN101865532A (en) | 2010-07-15 | 2010-07-15 | Water heater power supply automatic controller |
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| CN (1) | CN101865532A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591243A (en) * | 2012-03-21 | 2012-07-18 | 成都前锋电子有限责任公司 | Automatic control circuit of water heater |
| CN102591242A (en) * | 2012-03-21 | 2012-07-18 | 成都前锋电子有限责任公司 | Monostable protective circuit and automatic control circuit for water heater |
| CN105485930A (en) * | 2016-01-16 | 2016-04-13 | 郭艳明 | Novel water warmer |
| CN105627548A (en) * | 2016-03-27 | 2016-06-01 | 邝继伍 | Electric water heater and control device thereof |
| CN103795027B (en) * | 2012-10-31 | 2016-08-24 | 上海儒竞电子科技有限公司 | A kind of leakage current detection protection circuit |
| CN108716775A (en) * | 2018-06-04 | 2018-10-30 | 广东万家乐燃气具有限公司 | Water heater and water system |
| CN110726256A (en) * | 2016-01-04 | 2020-01-24 | 湖南工业大学 | Control method for gas proportional regulating valve of gas water heater |
| CN112378440A (en) * | 2020-09-22 | 2021-02-19 | 武汉海尔热水器有限公司 | Gas water heater and water flow detection circuit thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245881A (en) * | 1998-08-26 | 2000-03-01 | 海尔集团公司 | Electric water-heater with flow switch |
| CN201525291U (en) * | 2009-09-30 | 2010-07-14 | 无锡职业技术学院 | Automatic speed controller of automobile |
-
2010
- 2010-07-15 CN CN 201010228114 patent/CN101865532A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245881A (en) * | 1998-08-26 | 2000-03-01 | 海尔集团公司 | Electric water-heater with flow switch |
| CN201525291U (en) * | 2009-09-30 | 2010-07-14 | 无锡职业技术学院 | Automatic speed controller of automobile |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591243A (en) * | 2012-03-21 | 2012-07-18 | 成都前锋电子有限责任公司 | Automatic control circuit of water heater |
| CN102591242A (en) * | 2012-03-21 | 2012-07-18 | 成都前锋电子有限责任公司 | Monostable protective circuit and automatic control circuit for water heater |
| CN103795027B (en) * | 2012-10-31 | 2016-08-24 | 上海儒竞电子科技有限公司 | A kind of leakage current detection protection circuit |
| CN110726256A (en) * | 2016-01-04 | 2020-01-24 | 湖南工业大学 | Control method for gas proportional regulating valve of gas water heater |
| CN110726256B (en) * | 2016-01-04 | 2021-02-26 | 湖南工业大学 | Control method for gas proportional regulating valve of gas water heater |
| CN105485930A (en) * | 2016-01-16 | 2016-04-13 | 郭艳明 | Novel water warmer |
| CN105627548A (en) * | 2016-03-27 | 2016-06-01 | 邝继伍 | Electric water heater and control device thereof |
| CN108716775A (en) * | 2018-06-04 | 2018-10-30 | 广东万家乐燃气具有限公司 | Water heater and water system |
| CN112378440A (en) * | 2020-09-22 | 2021-02-19 | 武汉海尔热水器有限公司 | Gas water heater and water flow detection circuit thereof |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Xiaoping Inventor before: Yang Xiaoping Inventor before: Hua Xufen |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG XIAOPING HUA XUFEN TO: YANG XIAOPING |
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| RJ01 | Rejection of invention patent application after publication |
Open date: 20101020 |