CN107504691B - A kind of constant temperature of water heater control system - Google Patents
A kind of constant temperature of water heater control system Download PDFInfo
- Publication number
- CN107504691B CN107504691B CN201710767725.7A CN201710767725A CN107504691B CN 107504691 B CN107504691 B CN 107504691B CN 201710767725 A CN201710767725 A CN 201710767725A CN 107504691 B CN107504691 B CN 107504691B
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- CN
- China
- Prior art keywords
- temperature
- resistance
- water heater
- positive
- heating wire
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000007373 indentation Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000009347 mechanical transmission Effects 0.000 claims description 2
- 230000005619 thermoelectricity Effects 0.000 claims 1
- 238000005485 electric heating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0297—Heating of fluids for non specified applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/021—Heaters specially adapted for heating liquids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a kind of constant temperature of water heater control system, including heating wire, heating wire connects alternating current through contactor, and the electromagnetic coil of contactor is connected through microswitch adjusts turntable, adjusts turntable and is equipped with notch；When hot water temperature reaches set temperature range, adjusts turntable and turn to indentation, there, microswitch and adjusting turntable disconnect；It adjusts and is connected with the positive and negative rotation motor that driving adjusts turntable rotation on turntable, the resistance adjustment needle of positive and negative rotation motor and heating wire connects, for adjusting the output resistance of heating wire；Temperature transmitter is additionally provided in water heater, temperature transmitter compares the voltage signal that temperature signal is converted to corresponding voltage signal with measuring circuit exports, the voltage deviation of the two is exported to chopper, positive and negative rotation motor carries out positive and negative rotation adjusting according to the electric signal that chopper exports, and controls the output power and its power on/off of heating wire.The present invention can be realized water heater temperature and compensate automatically, keep water temperature constant.
Description
Technical field
The present invention relates to a kind of constant temperature of water heater control systems.
Background technique
Current market sales of electric heater there is a problem of one it is universal, when user discharges water, by using
Person carries out the control of leaving water temperature by regulating mixed water valve, and the temperature of water outlet can be fluctuated because of the variation of hydraulic pressure, makes one to feel
Feel sometimes hot and sometimes cold, user experience is very poor, and the accident that hot water is hurted sb.'s feelings occurs sometimes.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of constant temperature of water heater control system is provided, it can
Water heater temperature is automatically adjusted, water temperature is kept constant.
In order to achieve the above objectives, the technical scheme adopted by the invention is that: a kind of constant temperature of water heater control system, including set
The adjustable heating wire of resistance in water heater, the heating wire connect alternating current, the electromagnetic coil of the contactor through contactor
It is connected through microswitch and adjusts turntable, the adjusting turntable is equipped with notch；When hot water temperature reaches set temperature range, adjust
Turntable turns to indentation, there, and microswitch and adjusting turntable disconnect；It is connected with driving on the adjusting turntable and adjusts turntable rotation
Positive and negative rotation motor, the resistance adjustment needle of the positive and negative rotation motor and heating wire connects, for adjusting the output of heating wire
Resistance；
Temperature transmitter is additionally provided in the water heater, temperature signal is converted to corresponding voltage by the temperature transmitter
Signal exports the voltage deviation of the two to chopper, positive and negative rotation electricity compared with the voltage signal that measuring circuit exports
Motivation carries out positive and negative rotation adjusting according to the electric signal that chopper exports, and controls the output power and its power on/off of heating wire.
The temperature transmitter is thermocouple.
Indicating unit is also connected on the water heater, the indicating unit includes round temperature instruction disk and is set to temperature
Indicate that the indicator among disk, the indicator are connect with positive and negative rotation electric-motor drive.
The chopper is connect after voltage amplifier and power amplifier with positive and negative rotation motor.
The power amplifier is phase sensitivity power amplifier.
The measuring circuit includes being made of first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4
The electric contact of bridge circuit, 3rd resistor R3 and second resistance R2 are node A, the electric contact of first resistor R1 and second resistance R2
It is node S for the electric contact of node B, 3rd resistor R3 and the 4th resistance R4, node A is connect with the temperature transmitter；Node B
The connection measurement voltage E between node S, connect slide wire resistance R between first resistor R1 and the 4th resistance R4, the slide wire resistance
The slide plate of R is connect with positive and negative rotation electric-motor drive.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being: can be according to water temperature automatic controlled electric heating silk
Power on/off and output resistance realize that water heater temperature compensates automatically, keep water temperature constant.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, being a kind of constant temperature of water heater control system provided by the invention, including the resistance being set in water heater
Adjustable heating wire, heating wire connect alternating current through contactor, and the electromagnetic coil of contactor is connected through microswitch adjusts turntable, adjust
It saves turntable and is equipped with notch；When hot water temperature reaches set temperature range, adjusts turntable and turn to indentation, there, microswitch and tune
Turntable is saved to disconnect；It adjusts and is connected with the positive and negative rotation motor that driving adjusts turntable rotation on turntable, positive and negative rotation motor and electric heating
The resistance adjustment needle connection of silk, for adjusting the output resistance of heating wire；
Temperature transmitter is additionally provided in water heater, temperature signal is converted to corresponding voltage signal and surveyed by temperature transmitter
The voltage signal of amount circuit output compares, and the voltage deviation of the two is exported to chopper, positive and negative rotation motor according to
The electric signal of chopper output carries out positive and negative rotation adjusting, controls the output power and its power on/off of heating wire.Vibrate unsteady flow
Device is connect after voltage amplifier and power amplifier with positive and negative rotation motor
Measuring circuit includes the bridge-type being made of first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4
The electric contact of circuit, 3rd resistor R3 and second resistance R2 are that the electric contact of node A, first resistor R1 and second resistance R2 are section
The electric contact of point B, 3rd resistor R3 and the 4th resistance R4 are node S, and node A is connect with temperature transmitter；Node B and node S
Between connection measurement voltage E, between first resistor R1 and the 4th resistance R4 connect slide wire resistance R, the slide plate of slide wire resistance R with just
Motor with reciprocating movement transmission connection.
Clockwise and anticlockwise motor drives the sliding contact of measuring circuit to go to zero towards voltage deviation △ E by mechanical transmission mechanism
Direction sliding, when E=0 △, circuit reaches balance, and clockwise and anticlockwise motor stops operating, at this time adjust turntable make microswitch break
It opens, to make 10 points of contactor C, water heater stops power supply, works as water temperature drop, clockwise and anticlockwise motor reversion, and microswitch closes again
Close, make contactor C again it is electric, and according to the output resistance of the big minor adjustment heating wire of voltage deviation, realize water heater temperature oneself
Dynamic compensation, keeps water temperature constant.
Indicating unit is also connected on water heater, indicating unit includes round temperature instruction disk and is set in temperature instruction disk
Between indicator, indicator connect with positive and negative rotation electric-motor drive.
Preferably, temperature transmitter is thermocouple, and power amplifier is phase sensitivity power amplifier.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of constant temperature of water heater control system, which is characterized in that including the adjustable heating wire of resistance being set in water heater, institute
It states heating wire and connects alternating current through contactor, the electromagnetic coil of the contactor is connected through microswitch adjusts turntable, the adjusting
Turntable is equipped with notch；When hot water temperature reaches set temperature range, adjusts turntable and turn to indentation, there, microswitch and adjusting
Turntable disconnects；The positive and negative rotation motor that driving adjusts turntable rotation, the positive and negative rotation motor are connected on the adjusting turntable
It is connect with the resistance adjustment needle of heating wire, for adjusting the output resistance of heating wire；
Temperature transmitter is additionally provided in the water heater, temperature signal is converted to corresponding voltage signal by the temperature transmitter
Compared with the voltage signal of measuring circuit output, the voltage deviation of the two is exported to chopper, positive and negative rotation motor
Positive and negative rotation adjusting is carried out according to the electric signal of chopper output, controls the output power and its power on/off of heating wire；
The measuring circuit includes the bridge-type being made of first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4
The electric contact of circuit, 3rd resistor R3 and second resistance R2 are that the electric contact of node A, first resistor R1 and second resistance R2 are section
The electric contact of point B, 3rd resistor R3 and the 4th resistance R4 are node S, and node A is connect with the temperature transmitter；Node B and section
Connection measurement voltage E between point S, connect slide wire resistance R between first resistor R1 and the 4th resistance R4, the slide wire resistance R's
Slide plate is connect with positive and negative rotation electric-motor drive；
The direction that clockwise and anticlockwise motor drives the sliding contact of measuring circuit to go to zero towards voltage deviation by mechanical transmission mechanism
Sliding realizes that water heater temperature compensates automatically according to the output resistance of the big minor adjustment heating wire of voltage deviation.
2. constant temperature of water heater control system according to claim 1, which is characterized in that the temperature transmitter is thermoelectricity
It is even.
3. constant temperature of water heater control system according to claim 1, which is characterized in that be also connected with finger on the water heater
Show that unit, the indicating unit include round temperature instruction disk and the indicator among temperature instruction disk, the indicator
It is connect with positive and negative rotation electric-motor drive.
4. constant temperature of water heater control system according to claim 1, which is characterized in that the chopper is put through voltage
It is connect after big device and power amplifier with positive and negative rotation motor.
5. constant temperature of water heater control system according to claim 4, which is characterized in that the power amplifier is phase sensitivity function
Rate amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767725.7A CN107504691B (en) | 2017-08-31 | 2017-08-31 | A kind of constant temperature of water heater control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767725.7A CN107504691B (en) | 2017-08-31 | 2017-08-31 | A kind of constant temperature of water heater control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504691A CN107504691A (en) | 2017-12-22 |
| CN107504691B true CN107504691B (en) | 2019-08-30 |
Family
ID=60694471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710767725.7A Active CN107504691B (en) | 2017-08-31 | 2017-08-31 | A kind of constant temperature of water heater control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504691B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2257887A (en) * | 1940-10-28 | 1941-10-07 | Mcgraw Electric Co | Off-peak water heating system |
| DE2015630A1 (en) * | 1970-04-02 | 1971-10-21 | Centra Buerkle Kg Albert | Device for regulating room temperatures |
| CN2040757U (en) * | 1988-04-14 | 1989-07-12 | 刘忠宪 | Intelligence type gas-burning water heater |
| CN2324480Y (en) * | 1997-09-01 | 1999-06-16 | 许小虎 | Improved electric water heater |
| CN101201636A (en) * | 2007-07-27 | 2008-06-18 | 吉林大学 | High stability thermostat controller |
-
2017
- 2017-08-31 CN CN201710767725.7A patent/CN107504691B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2257887A (en) * | 1940-10-28 | 1941-10-07 | Mcgraw Electric Co | Off-peak water heating system |
| DE2015630A1 (en) * | 1970-04-02 | 1971-10-21 | Centra Buerkle Kg Albert | Device for regulating room temperatures |
| CN2040757U (en) * | 1988-04-14 | 1989-07-12 | 刘忠宪 | Intelligence type gas-burning water heater |
| CN2324480Y (en) * | 1997-09-01 | 1999-06-16 | 许小虎 | Improved electric water heater |
| CN101201636A (en) * | 2007-07-27 | 2008-06-18 | 吉林大学 | High stability thermostat controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107504691A (en) | 2017-12-22 |
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