CN1804499A - Electronic water heater - Google Patents
Electronic water heater Download PDFInfo
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- CN1804499A CN1804499A CN 200510021782 CN200510021782A CN1804499A CN 1804499 A CN1804499 A CN 1804499A CN 200510021782 CN200510021782 CN 200510021782 CN 200510021782 A CN200510021782 A CN 200510021782A CN 1804499 A CN1804499 A CN 1804499A
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- water
- heat exchange
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- heater
- exchange cassette
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Abstract
The invention relates to an electronic water heater, which comprises an power electronic frequency conversion magnetic inductive loop heating and plate type thermal interchange box. The invention realizes high thermal efficiency, easy production and low cost.
Description
Technical field:
The present invention relates to a kind of electric heater.Specifically be that a kind of frequency-variable electronic magnetic induction does not have the water tank water heater.
Background technology:
The traditional electrical water heater is in the resistance heating mode water to be heated.Because its heater element insulant thermal resistance causes thermal losses big, thereby power consumption height, the thermal efficiency are low.Power and the contradiction of time when heating for solving adopt water tank storage hot mode.But have pondage to fix and the water consumption problems such as loss and equipment volume be huge that change greatly, dispel the heat, and problems such as incrustation scale, electric leakage are also perplexing us for a long time
Electric heater after the improvement is induction.Though solved the loss that resistance heating body insulant thermal resistance is brought,, still had the shortcoming that consumptive material is many, loss is high because of adopting power frequency magnetic induction technology mostly.
Know Chinese patent through Chinese patent technology net patent retrieval hurdle keyword (electromagnetic induction water heater) retrieval: 97112625.9; 99242365.1; 98216689.3; 00203039.x; 03237200.0 five.Chinese patent is known in keyword (electronic water heater) retrieval: 90215911.9; 00223038.0 two.
Chinese patent 97112625.9: electromagnetic induction water heater.Electromagnetic induction water heater, by tank, heater and control device etc. are formed, its so-called heater is formed by the transformation coil of a winding, iron core with as the sliver of Secondary Winding, the coil joining power, sliver connects tank, between transformation coil and tank and transformation coil and sliver insulating barrier is arranged.Characteristics such as the present invention adopts the resistance difference to cause the direct eddy current electromagnetic induction heating of tank of water heater, has electromagnetic induction flames of anger heating, and safe and convenient to use, the life-span is long.
Not enough point: the main-frequency electromagnetic induction volume is big, and consumptive material is many.The inconvenience of water tank storage water heater is installed and is used.
Chinese patent 99242365.1 electromagnetic induction water heaters.The utility model relates to a kind of electromagnetic induction water heater, comprises shell, inner bag, water inlet pipe, outlet pipe, electromagnetic heating coil and circuit board, it is characterized in that: heater coil is the curved surface shape, is positioned at that to be shaped as tubular, two ends be below the curved inner bag.The utility model can carry out eddy-current heating to the tubular inner bag, and fundamentally accomplishes the water power isolation, and is safe and reliable during use, thermal efficiency height.
Not enough point: the big inconvenience of water tank storage water heater volume is installed and is used.
98216689.3 1 kinds of electromagnetic induction water heaters fast and safely of Chinese patent.The utility model belongs to a kind of electric heater, it imports 220 volts of primary voltages, by regulating according to electromagnetic induction principle, employing transformer coil eddy-current heating, secondary induction at it goes out 1 volt of low-voltage, high-current, utilizes the low-voltage, high-current of safety directly the water in the secondary water pipe to be heated.
Not enough point: the main-frequency electromagnetic induction volume is big, and consumptive material is many.
Chinese patent 00203039.x electromagnetic induction water heater.The utility model relates to a kind of electric heater, especially a kind of electric heater that is mainly used in bathing.Utilize the electromagnetic induction effect that water is heated, mainly constitute by iron core, magnet exciting coil, induction tube etc.
Not enough point: the main-frequency electromagnetic induction volume is big, and consumptive material is many.
Chinese patent 03237200.0 electromagnetic induction water heater.The utility model relates to a kind of water heater, and the output termination electromagnetic induction coil of electromagnetic induction generator, electromagnetic induction coil are coupled to electromagnetic induction heat exchanger generation magnetic induction eddy current and are used to add hot water.Advantage: the one, the electromagnetic induction heat exchanger is used for the exploitation and the design of water heater, not only can not produce pernicious gas in the heating process, and the thermal conversion efficiency height, can transient heating water, continuous constant temperature water outlet, the more important thing is that heated aqueous medium and heating power supply are contactless state, safe and reliable; The 2nd, the design of aqueduct or water guide dish tubulose electromagnetic induction heat exchanger has not only greatly improved thermal conversion efficiency, and makes and be heated the instant water boiling and become a reality.
Not enough point: the aqueduct leakage field is big, loss is high, and water guide dish tubulose electromagnetic induction heat exchanger difficulty of processing is big, cost is high.
Chinese patent 90215911.9 utility model titles: swift electron water heater.The circuit part of this device is by high-voltage rectifying and filter circuit, the higher-order of oscillation and inductive heating circuit, automatic switch and regularly oscillation control circuit, current foldback circuit, overheated and overvoltage crowbar, synchronous circuit and low-tension supply are formed.It utilizes high-frequency electromagnetic induction eddy current heating principle, allows water directly flow through heater coil and produces hot water for shower and domestic water.
Not enough point: the tubular coil processing difficulties, and leakage field is bigger.
Chinese patent 00223038.0 electronic water heater.The utility model electronic water heater, it is characterized in that: the (PCC) power circuit design is become the power amplifier that constitutes by 6-15 BG pipe and the damping diode in it, connect with a BG again after each BG pipe parallel connection, power amplifier one end links to each other with drive circuit by resistance, the other end links to each other with heater coil, heating, and the line of coil is through being designed to 0.2-0.3mm, and relative with the irony corrugated tube, the two is provided with the devitrified glass dividing plate.
Not enough point: power amplifier complexity; The transducing heat exchanger is the irony corrugated tube, and leakage field is bigger.
Summary of the invention:
The present invention is directed to above-mentioned patented technology shortcoming, use on-off circuit that modern electromagnetic heating technique and power electronic devices form and single chip machine controlling circuit and custom-designed board-like heat exchange cassette make light, little, energy-conservation, safe, promptly to open be the electronic water heater of heat supply water.
Square being directly proportional of theory and practice proof eddy current power and ac frequency.
In recent years the power electronic devices of excellent performance is come out in a large number, single-chip microcomputer control technology becomes better and approaching perfection day by day, and makes power electronics frequency modulation magnetic induction heating technique ripe more, and reliability is greatly improved, and cheap and good-quality electromagnetic oven product continues to bring out.Gently, little, energy-conservation, safety is the major advantage of electromagnetic oven.It is exactly the problem that the present invention solves that the electromagnetic oven heating technology of application of known, the electromagnetic oven that will be used to fry in shallow oil, fry, steam, boil are made electronic water heater.
Design: with the rectification full-bridge civil power is become direct current, changes it into high-frequency alternating current with high-power gate pipe (IGBT) again and discharge the powerful electromagnetic ripple through heater coil to the space, absorb and produce powerful eddy current by the board-like heat exchange cassette of next-door neighbour's ferromagnetics.Board-like heat exchange cassette generates heat rapidly and the water in the box of flowing through is heated, and because of tank circuit long enough makes hydrothermal exchange abundant, and obtains required hot water at delivery port.Be aided with the monitoring of single-chip microcomputer to power supply, current, electronic system duty.This electronic water heater has that electrical power is adjustable, water-control switch and regulate water temperature, plug and play, unusual acousto-optic alarm function.
This electronic water heater is because of adopting integrated package and high back-pressure high power valve, and circuit is simple and direct, powerful, volume is small and exquisite, energy-conservation material-saving.Because of board-like heat exchange cassette and mains isolation, so safe and reliable.Hand over the back of heating up, box flat board bottom directly exchange heat to be given water in the base plate tank of flowing through because of high-frequency vortex makes board-like heat, the thermal efficiency can be up to about 90%.
Feature one of the present invention is to adopt the direct rectifying and wave-filtering of civil power through slab coil and resonant capacitance and IGBT pipe and pwm control circuit formation high frequency oscillation circuit thereof, and this control circuit is controlled by the detected electric current of single-chip microcomputer, voltage, current, temperature, time and keyboard signal also simultaneously.The 2nd, adopt and can realize the closely-coupled plank frame heat exchange cassette of electromagnetism.This plank frame heat exchange box body is separated into flute profile water channel by ferromagnetic bar by ferromagnetics sheet stamping moulding in the box, is beneficial to water and board slot and carries out sufficient heat exchange.Board-like heat exchange lid has water inlet pipe and water outlet pipe interface and sealing ring by plastic pressing forming on it.Heat exchange cassette is assembled by ferromagnetic box body and plastic box cover.This board-like heat exchange cassette suitability for industrialized is produced.With plate-like heater coil insulation but be close to and be installed together, the another side of plate-like heater coil is provided with concentrates electromagnetic magnetic stripe at the bottom of the heat exchange cassette.The 3rd, panel is provided with power switch and POWER LEVEL, and electronic water heater water inlet control working power, regulating pondage also can be realized temperature adjustment, overtime need not the outage automatically in start back.
The present invention and background technology compare: the one, and circuit adopts integrated package and power electronic devices to form, thereby simple compact, the function admirable of circuit.The 2nd, circuit working has reduced consumptive material and volume at high band greatly than the power frequency section.The 3rd, the board-like design of heat exchange cassette not only helps the coupling of electromagnetic field but also is convenient to suitability for industrialized production.Thereby the electronic water heater complete machine is small and exquisite, advanced technology, powerful, easy to use, efficiency is high, cost is low, safe and reliable.
Description of drawings:
Fig. 1 electronic water heater principle sketch.Wherein: 1. panel operating key unit; 2. single-chip microcomputer detects control module; 3. low-tension supply unit; 4.PWM driver element; 5. acousto-optic hint unit; . resonant capacitance; . heater coil; . board-like heat exchange cassette; . hydraulic pressure switch.
The board-like rectangle straight trough of Fig. 2 heat exchange cassette.Wherein:
Board-like heat exchange cassette;
Connecting screw;
O-ring seal;
Gland.
The board-like special-shaped straight trough heat exchange cassette of Fig. 3.Wherein:
The box body cross section;
The lid cross section;
The box body plane.
The board-like special-shaped crank slot heat exchange cassette of Fig. 4.Wherein:
The box body cross section;
The lid cross section;
The box body plane.
Description of drawings Fig. 1 is seen in the Figure of abstract explanation.
Specific embodiment:
In order further to embody practicality of the present invention rather than to limit way of realization of the present invention, provide most preferred embodiment below in conjunction with accompanying drawing, to embody practicality of the present invention and advantage.
Embodiment 1
With reference to accompanying drawing 1 and accompanying drawing 2 or accompanying drawing 3 or accompanying drawing 4.Electronic water heater, civil power insert through hydraulic pressure switch control and enter, and the 300V direct current constitutes the loop through heater coil and IGBT after the rectification of bridge heap.IGBT is under the control of PWM switching pulse, and the electric capacity work of shaking of heater coil and attainments in parallel produces high-frequency alternating current in the heater coil.Produce powerful eddy current, heating rapidly at the bottom of the relative board-like heat exchange cassette of being close to insulation assembling with the dish type heater coil, the electromagnetic energy in the heater coil changes heat energy into.The interior water of heat exchange box plate groove of flowing through fully carries out heat exchange because of flute length and base plate, flows out after water temperature raises, and has realized that the magnetic induction of electronics frequency modulation adds the purpose of hot water.Be to guarantee system's normal reliable work and easy to use, under-voltage, the overvoltage of having adopted that single-chip microcomputer HMS87C1202A80319 and related device form, temperature, time-delay, electric current, keyboard etc. detect control and acousto-optic hint circuit.For reducing heater coil and IGBT temperature rise, be provided with fan in the machine.The IGBT drive circuit is worked under Single-chip Controlling by TA8316.The heat exchange box body will be separated into continuous tank by ferromagnetic stainless steel or sheet iron punch forming and the thin iron bar of spot welding in the box.Lid has the slot that cooperates with the tank iron bar by the Inlet and outlet water interface is arranged on the plastic pressing forming in the lid, so that keep iron bar uprightly and between groove not sluice.The lid inner rim is fluted, so that embed rubber seal.To cover with after box is connected with screw, be assemblied on the heat coil.The hydraulic pressure gauge tap links to each other with board-like heat exchange cassette water inlet after tapping into water pipe, and outlet pipe or gondola water faucet connect the heat exchange cassette delivery port.There are control button and display screen in the circuit board front, below that circuit board is placed on heater coil and board-like heat exchange cassette.Connect civil power and water source, selection power (large, medium and small), open water valve, effluent pipe mouth will have hot water to flow out.Regulating pondage size, adjustable water saving temperature.
Embodiment 2
Change lid into sheet metal and be installed into the outlet pipe interface, the board-like heat exchange cassette of tank and sealing is arranged in connecting at the bottom of inboard pad elasticity watertight thermal insulation board and the board-like box.Again together with the insulation of the heat coil of this box and frequency-variable electronic device and close fit.Circuit board is placed in the heat exchange cassette front lower place, notes the ventilation and heat of circuit board, IGBT and heater coil, button and display screen are in the circuit board front.Heater coil and heat exchange cassette are on the top of electronic water heater.
The above is only for the basic preferred embodiment of patent of the present invention.Should be understood that; for those of ordinary skill in the art under the premise of not departing from the present invention; can also make some distortion; as being coated with glaze in board-like heat exchange cassette bottom, being pressed with groove, heat coil being embedded the Double bottom heat exchange cassette, changes double water temperature, automatic constant-temperature, the fully automatic operation etc. of showing of SCM program, also should be considered as belonging to protection scope of the present invention.
Claims (4)
1. frequency-variable electronic magnetic induction water heater: it is characterized in that civil power constitutes the loop by bridge heap rectifying and wave-filtering through heater coil and IGBT, and heater coil and shunt capacitance constitute resonant tank, heater coil is coupled high-frequency electrical magnetic energy to board-like heat exchange cassette, and at the bottom of board-like heat exchange cassette, form powerful magnetic induction eddy current, and heat up rapidly at the bottom of making board-like heat exchange cassette.
2. IGBT according to claim 1 is a high-power switch tube, it is characterized in that being subjected to PWM driver element 4 and single-chip microcomputer to detect the control of control module 2.
3. heater coil according to claim 1 is characterized in that by the stranded back of multiply fine enamelled wire coiled plate-like.
4. board-like heat exchange cassette according to claim 1, it is characterized by box body and form, can be separated into some tanks in the box, but lid can be also stamped metal moulding of plastic pressing forming by the ferromagnetics sheet stamping, there is sealing ring on lid and box body limit, have into water and water outlet interface on the box at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100217828A CN100424436C (en) | 2005-09-30 | 2005-09-30 | Electronic water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100217828A CN100424436C (en) | 2005-09-30 | 2005-09-30 | Electronic water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1804499A true CN1804499A (en) | 2006-07-19 |
| CN100424436C CN100424436C (en) | 2008-10-08 |
Family
ID=36866606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100217828A Expired - Fee Related CN100424436C (en) | 2005-09-30 | 2005-09-30 | Electronic water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100424436C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419342C (en) * | 2006-11-10 | 2008-09-17 | 祝世权 | Electronic water heater |
| CN103322668A (en) * | 2012-03-17 | 2013-09-25 | 莆田市清华园电器发展有限公司 | High-frequency electromagnetic water heater |
| CN107404778A (en) * | 2016-05-18 | 2017-11-28 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic Heating cooking system and its drive control circuit, detection method |
| US20220046767A1 (en) * | 2018-10-11 | 2022-02-10 | PRE Technologies Limited | Point-of-use induction water heater |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053420U (en) * | 1989-08-09 | 1990-02-21 | 周志伟 | Electromagnetically inductive heater |
| JPH0587396A (en) * | 1991-09-27 | 1993-04-06 | Hitachi Home Tec Ltd | Electromagnetic induction heating type bathtub additional heater |
| CN2450583Y (en) * | 2000-08-02 | 2001-09-26 | 鲁清 | HF electromagnetic induction continuous-flow water heater |
| JP2002164158A (en) * | 2000-11-27 | 2002-06-07 | Minekkusu:Kk | Fluid heating device |
| CN2572286Y (en) * | 2002-08-23 | 2003-09-10 | 高春林 | Electromagnetic water heater |
| CN1309996C (en) * | 2003-04-28 | 2007-04-11 | 张永光 | Electromagnetic water heater |
| CN2671284Y (en) * | 2003-12-25 | 2005-01-12 | 广东美的集团股份有限公司 | Controller of electromagnetic furnace |
| JP4345491B2 (en) * | 2004-01-15 | 2009-10-14 | パナソニック株式会社 | Induction heating device |
-
2005
- 2005-09-30 CN CNB2005100217828A patent/CN100424436C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419342C (en) * | 2006-11-10 | 2008-09-17 | 祝世权 | Electronic water heater |
| CN103322668A (en) * | 2012-03-17 | 2013-09-25 | 莆田市清华园电器发展有限公司 | High-frequency electromagnetic water heater |
| CN107404778A (en) * | 2016-05-18 | 2017-11-28 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic Heating cooking system and its drive control circuit, detection method |
| US20220046767A1 (en) * | 2018-10-11 | 2022-02-10 | PRE Technologies Limited | Point-of-use induction water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100424436C (en) | 2008-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20100930 |