CN1340680A - Induction-type instantaneous electric water heater - Google Patents
Induction-type instantaneous electric water heater Download PDFInfo
- Publication number
- CN1340680A CN1340680A CN 00117368 CN00117368A CN1340680A CN 1340680 A CN1340680 A CN 1340680A CN 00117368 CN00117368 CN 00117368 CN 00117368 A CN00117368 A CN 00117368A CN 1340680 A CN1340680 A CN 1340680A
- Authority
- CN
- China
- Prior art keywords
- induction
- winding
- iron core
- determination
- heating
- 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.)
- Pending
Links
Images
Abstract
An induction-type instantaneously electric water heater is composed of iron core, electromagnetic winding, induction winding, controller circuit and shell. Its induction-type electrothermal element consists of iron core and induction winding can be used to induca a low-voltage high current for heating the water in isolatino mode, resulting in high safety.
Description
The present invention relates to a kind of daily living article, particularly a kind of electric heater.
In the prior art, instant-heating electric water heater is that the civil power by 220V generates heat through heating, and directly hot water is produced in heating to water, thus hot water just with on make the utility grid voltage of the fatal 220V of people.For eliminating this voltage, usually holding circuit is set in the water side of hot water.In daily life, this instant-heating electric water heater makes the hot water bank of outflow go up the utility grid voltage of 220V, thereby causes the personal safety accident often because of holding circuit or the loose contact of electric heating loop.Obviously, the disadvantage of instant-heating electric water heater of the prior art is dangerous.
Purpose of the present invention is created a kind of hot water and city's electrical network and is isolated fully, transmits energy, fool proof reliable induction-type instantaneous electric water heater by alternating magnetic field.
Induction-type instantaneous electric water heater is made up of iron core, electromagnetism winding, induction winding, control circuit and housing, it is characterized in that induction-type instantaneous heating is by unshakable in one's determination＜1〉and induction winding＜3 form.
Foregoing iron core＜1 〉, it is characterized in that the monoblock type iron core that eddy current unshakable in one's determination can flow around the center line of core limb and yoke unshakable in one's determination.
Foregoing iron core＜1 〉, it is characterized in that having in core limb and the yoke unshakable in one's determination water channel＜4 that axially connect mutually, water can be from water channel＜4〉an end flow into, flow out from the other end.
Foregoing iron core＜1 〉, the eddy current that it is characterized in that in the iron core the multiple different frequency that induction produces makes it heating becomes the induction type heating.
Foregoing induction winding＜3 〉, it is characterized in that responding to winding and form by the metal tube system of scratching, water can flow into from an end of metal tube winding, flows out from the other end.
Foregoing induction winding＜3 〉, it is characterized in that head and the tail two terminal shortcircuits of responding to winding connect, and make this induction winding constitute the short circuit current loop.
Foregoing induction winding＜3 〉, the short circuit current that it is characterized in that responding to the multiple different frequency that induction produces in the winding makes it heating becomes the induction type heating.
Fig. 1 is the basic structure and the fundamental diagram of single-phase induction formula instant-heating electric water heater.
As can be seen from the figure, the basic structure of single-phase induction formula instant-heating electric water heater is identical with the basic structure of single phase step-down transformer, and different is the induction short circuit in winding of single-phase induction formula instant-heating electric water heater, and the output winding of single phase step-down transformer open circuit.Obviously, the basic structure of triphase induction type instant-heating electric water heater is identical with the basic structure of triphase step-down transformer, and different is the induction short circuit in winding of triphase induction type instant-heating electric water heater, and the output winding of triphase step-down transformer open circuit.
The core construction form of induction-type instantaneous electric water heater, the version of transformer core in the employing prior art.The iron core of induction-type instantaneous electric water heater is a monolithic construction, so in daily life, unshakable in one's determination＜1〉generally all adopt castings such as watering steel, malleable cast iron, spheroidal graphite cast-iron to form, also can adopt the powder metallurgy technology that ferromagnetic powder die casting is formed, also available in addition electrical sheet or electrician's iron form.
Iron core among Fig. 1＜1〉be heart type structure, it is made up of duplicate two iron core parts of structure.In each iron core part, all there are a core limb and a yoke unshakable in one's determination to combine, its shape is as ' L '.In the iron core part, garden shape or square structure are adopted in the cross section of core limb and yoke unshakable in one's determination.Be cast with water channel＜4 that axially connect mutually in the core limb of iron core part and the yoke unshakable in one's determination 〉.There is the internal thread hole and water channel＜4 of two pipe joints in the yoke unshakable in one's determination outside of iron core part〉communicate, in this two hole, one is the pilot hole of hydraulic pressure switch or draining valve, another is water channel＜4〉water inlet pipe or the pilot hole of outlet pipe.The inversion of two structures duplicate ' L ' shape iron core part is assembled together, promptly forms monoblock type iron core＜1 of a closed magnetic circuit 〉.Unshakable in one's determination＜1〉during assembling, core limb water channel＜4〉and yoke water channel unshakable in one's determination＜4 joint, encapsulant is set in case water channel＜4〉in seepage.The both ends of the yoke unshakable in one's determination of iron core part all are provided with bearing unshakable in one's determination, so that the main body of electric heater is installed on the support of back side panel.For the iron rust that prevents water channel unshakable in one's determination pollutes hot water, water channel unshakable in one's determination will be done antirust processing such as zinc-plated.
Electromagnetism winding＜2 of induction-type instantaneous electric water heater〉identical with the input winding construction of transformer.The electromagnetism winding of induction-type instantaneous electric water heater adopts enamel-covered wire or cotton-covered wire layering to scratch on the insulation coil holder of concentric type winding.The electromagnetism winding must be handled through heavy insulation, with the dielectric strength of enhancing winding and the capacity of heat transmission of winding.
Induction winding＜3 of induction-type instantaneous electric water heater 〉, be to form by metal tubes such as copper, aluminium, stainless steel, the coating steel pipe system of scratching that outer surface was made insulation processing.Generally speaking, the induction winding adopts single tube to scratch system, but also can adopt the metal tube more than 2 and scratch.Metal tube is scratched the head and the tail two ends of the induction winding of system will do the short circuit connection, makes this induction winding constitute the short circuit current loop.The induction winding can be in series or in parallel to form a short circuit current loop independently by the multiturn pipeloop, also can constitute a short circuit current loop independently by the single turn pipeloop.In induction-type instantaneous electric water heater, the induction winding＜3 can by one independently the winding in short circuit current loop form, also can form by the winding in a plurality of independently short circuit currents loop.Scratch induction winding＜3 of system by metal tube〉head and the tail two terminal shortcircuit interface＜5 outer metal tube end will mix pipe joint, one of makes end and water channel unshakable in one's determination＜4 delivery port connect and the outlet pipe of the other end and water heater connection.
The iron core of induction-type instantaneous electric water heater＜1 〉, electromagnetism winding＜2, induction winding＜3 three's assembling mode, adopt iron core, the input winding of transformer in the prior art, output winding three's assembling mode.
In induction-type instantaneous electric water heater, assembling mode commonly used has two kinds.A kind of is electromagnetism winding＜2〉and induction winding＜3 be assemblied in iron core＜1 respectively two core limbs on.Another kind of assembling mode is to assemble electromagnetism winding＜2 on same core limb〉and induction winding＜3, electromagnetism winding＜2〉be assemblied in the periphery of core limb, and respond to winding＜3 be sleeved on electromagnetism winding＜2 the periphery.This assembling mode must be strengthened the insulation between their threes.Generally speaking, adopt the gap of filling insulating material between them, and with they water solid together, to strengthen dielectric strength between their threes and the capacity of heat transmission between them.
The control circuit of induction-type instantaneous electric water heater is made up of hydraulic pressure switch circuit, low-voltage power circuit, bidirectional thyristor on-off circuit or other transistor on-off circuit, manual thermoregulation circuit, automatic temperature-control circuit, anti-scald circuit and temperature alarm circuit.The control circuit device waters admittedly together with insulating materials on a circuit board, to strengthen IGCT or the heat-sinking capability of transistor and the moistureproof ability of circuit.
The control circuit of induction-type instantaneous electrical water heater can the sine wave output alternating current, also with exportable non-sinusoidal waveform alternating current, can the output low frequency electric current, and also exportable high frequency electric.
The housing of induction-type instantaneous electric water heater is made up of back side panel and shell.Support unshakable in one's determination, water inlet pipe and water outlet pipe support, binding post support, electric power incoming line hole, shell pilot hole and water heater suppending hole etc. are arranged on the back side panel.Power switch button hole, manual thermoregulation knob hole, indicator lamp hole, Inlet and outlet water pore, draining valve bolt hole and air vent etc. are arranged on the shell.
The operation principle of the operation principle of single-phase induction formula instant-heating electric water heater and the operation of single-phase transformer output short circuit in winding is basic identical.And the operation principle of the operation principle of triphase induction type instant-heating electric water heater and the operation of three-phase transformer output short circuit in winding is also basic identical.Transformer input that different is be sinusoidal wave power current, and induction-type instantaneous electrical water heater is because of the control of controlled circuit, and the electric current of its input may be sinusoidal wave alternating current, also may be the non-sinusoidal waveform alternating current, may be power current, also may be high frequency electric.
Be example with single-phase induction formula instant-heating electric water heater below, introduce the operation principle of induction-type instantaneous electric water heater.
When the attaching plug of induction-type instantaneous electric water heater inserted supply socket, the power supply of electric heater was switched on, and power supply indicator lights, but this moment, electric heater was obstructed because of water, and water heater is not worked.When the water intaking valve of induction-type instantaneous electric water heater is opened, water promptly enters iron core＜1〉in water channel＜4, be installed in water channel＜4 this moment〉on the water of hydraulic pressure switch with certain pressure connect, the low-voltage power circuit starting, control circuit promptly makes it start working to bidirectional thyristor output trigger impulse, and electromagnetism winding acquisition this moment exciting current is set up alternating magnetic field.Under the effect of this alternating magnetic field magnetic flux, monoblock type iron core＜1〉in, promptly induce the eddy current that can flow around the center line of core limb and yoke unshakable in one's determination, this powerful low pressure eddy current makes iron core＜1〉heating, flow through water channel＜4 thereby give〉the water heating.Under the effect of this alternating magnetic field magnetic flux, the induction winding＜3 in promptly induce powerful short circuit current, this powerful short circuit current makes metal tube produce high heat, thereby makes induction winding＜3〉become the main induction-type instantaneous heating in the induction-type instantaneous electric water heater.When water from water channel＜4 flow to induction winding＜3 metal tube the time, water is promptly by heat temperature raising once more, thereby produces qualified hot water.
In induction-type instantaneous electric water heater, the flow process of water is that water enters iron core＜1 by water inlet pipe〉in water channel＜4, with after left and right sides water channel＜4 in the iron core〉flow out, then enter induction winding＜3 〉, flow out through outlet pipe then, shown in the arrow among Fig. 1.From the flow process of water as can be seen, water has passed through post bake in electric heater.Heating first time of water is iron core＜1 at one of induction-type instantaneous heating〉in carry out, the heating second time of water is two induction winding＜3 at induction-type instantaneous heating〉in carry out.Water is in unshakable in one's determination＜1〉in heating, be actually current through water channel unshakable in one's determination＜4〉time, water is with unshakable in one's determination＜1〉in the heat that produces because of eddy-current loss take away, thereby reduce unshakable in one's determination＜1 and electromagnetism winding＜2 operating temperature.Because induction winding＜3〉in short circuit current more than unshakable in one's determination＜1 in eddy current big, obviously respond to winding＜3〉power more than unshakable in one's determination＜1 power big, so water is in induction winding＜3〉in heating be only positive really heating.Induction-type instantaneous electric water heater is responded to winding＜3 when operation〉follow instruction that water is heated to required temperature at any time according to control circuit.Because the control circuit of induction-type instantaneous electric water heater is that the input current of electromagnetism winding is implemented half waveform control, and the switching speed of control circuit is more than centisecond, so the temperature of hot water is very accurate and highly stable.
Electromagnetism winding＜2 of induction-type instantaneous electric water heater 〉, under the effect of control circuit and bidirectional thyristor, the exciting current of input is the non-sinusoidal waveform electric current often.Under the effect of this non-sinusoidal waveform exciting current, unshakable in one's determination＜1〉induce the eddy current of multiple different frequency, the eddy current of multiple different frequency makes heating unshakable in one's determination become induction-type instantaneous heating.Under the effect of this non-sinusoidal waveform exciting current, induction winding＜3〉induce the short circuit current of multiple different frequency, the short circuit current of multiple different frequency makes the induction heating in winding become induction-type instantaneous heating.
From the essential structure of induction-type instantaneous electric water heater and operation principle as can be seen, induction-type instantaneous heating and city's electrical network are isolated fully, energy transmission between them is finished by alternating magnetic field, and as iron core＜1 of induction-type instantaneous heating and induction winding＜3, all several exhaling of their operating voltage is zero.Obviously, induction-type instantaneous electric water heater is fool proof reliable electric heater.
Embodiment 1: single-phase induction formula instant-heating electric water heater
The iron core of single-phase induction formula instant-heating electric water heater is a heart type structure, and the iron core of heart type structure is assembled by two duplicate iron core parts of structure, and Fig. 2 is the iron core part structure chart.The iron core of induction-type instantaneous electric water heater is a monolithic construction, so iron core part adopts same mould to form with the spheroidal graphite cast-iron precision casting.The iron core part that precision casting is come out must not made the precision that any processing can reach assembling.The core limb of iron core part is the garden column construction, and yoke unshakable in one's determination is a square structure.The outside of the assembling end of yoke unshakable in one's determination is provided with an assembling bearing.The structure of the assembled end of assembling bearing and yoke is the garden arc that matches with the core limb assembled end.Assembling in the bearing vertically be provided with one with the corresponding assembling screw of core limb pilot hole.The outside of assembling bearing and the outside of the yoke other end respectively are provided with a bearing unshakable in one's determination, are provided with one and the corresponding pilot hole of back side panel support in the bearing unshakable in one's determination.Core limb assembling end laterally be provided with one with the corresponding pilot hole of bearing assembling screw unshakable in one's determination.Just two iron core parts can be inverted with two groups of bolts like this and be assembled together.The core limb of iron core part and the cast inside of yoke unshakable in one's determination have water channel, the center line of the water channel outlet of yoke assembling end and the central lines of yoke, the central lines of the water channel outlet of the center line of the water channel outlet of core limb assembling end and yoke assembling end.There are two tapped pipe joint holes that communicate with water channel in the outside of yoke unshakable in one's determination.The iron core part that processes is wanted the applying preventive by dipping lacquer in case water channel gets rusty, but on the arc fitting surface of core limb and yoke unshakable in one's determination paint film can not be arranged.
The electromagnetism winding of single-phase induction formula instant-heating electric water heater is to be formed in the garden tubular insulation coil holder higher slice system of scratching by cotton-covered wire.Scratch the electromagnetism winding that makes and to do to soak the insulated paint processing, with dielectric strength and the heat-transfer capability of strengthening it.
The induction winding of single-phase induction formula instant heating hydrophone, be to form by the single stainless steel tube individual layer system of scratching, scratching the induction winding that makes will be on same vertical line, with each circle pipeloop solder shorts, makes each circle pipeloop all become independently short circuit current loop with tin or spelter solder.The stainless steel tube of certain-length will be reserved in the outer head and the tail two ends of induction short circuit in winding pad, and pipe joint will be mixed in the end of these two sections stainless steel tubes, so that and corresponding assembling place connection.
After electromagnetism winding and induction winding make, be about to be sleeved on together inside and outside them, and they watered the coil assembly of formula in aggregates admittedly with insulating materials.
The control circuit of single-phase induction formula instant-heating electric water heater adopts circuit engineering of the prior art and element to make.Control circuit after making waters them admittedly together with insulating materials.With the heat-sinking capability of enhancing bidirectional thyristor and the moistureproof ability of circuit.
The housing of single-phase induction formula instant-heating electric water heater is made by sheet metal, and housing divides shell and two parts of back side panel, all disposes corresponding support and hole on these two parts.
Single-phase induction formula instant-heating electric water heater at first is assemblied in coil assembly on the core limb of iron core part when assembling.When coil assembly and iron core part assembling, notice that both directions and position are correct.After coil assembly and iron core part assembled, available insulating materials watered them and becomes big parts admittedly.With two groups of bolts this two big parts inversion is assembled together then, promptly constitutes the main body of induction-type instantaneous electric water heater.When assembling two big parts, on the garden arc fitting surface of core limb and yoke unshakable in one's determination, be coated with the magnetic mud that last layer has certain intensity, with the magnetic conduction ability that improves contact-making surface with prevent that water channel from leaking.
After the main body of induction-type instantaneous electric water heater assembles, just can carry out the installation of accessory.At first on the hole on the left side of yoke on the main body, assemble hydraulic pressure switch, on the hole on the right of last yoke, assemble threeway then, and with two the induction windings head ends be connected in this threeway, simultaneously the tail ends at two induction windings connect another threeway, then fit on draining valve on the hole on the right of lower yoke.After above accessory assembled, promptly available four groups of bolts were installed in main body on the back side panel, followed fit on water inlet pipe on the left hole of following yoke unshakable in one's determination, and the other end of water inlet pipe and the threeway of induction winding tail end are assemblied on the corresponding friendly frame of back side panel.So just finished the installment work of induction-type instantaneous electric water heater hardware.Fig. 3 is the main body installation diagram of single-phase induction formula instant-heating electric water heater.
Two electromagnetism windings of induction-type instantaneous electric water heater adopt coupled in series, and its flow direction can not be opposite when two windings connected.In electric installation, forceful electric power connects on binding post, and light current adopts to peg graft and connects.
The Figure of description explanation:
The explanation of Fig. 1:
12 electromagnetism windings, 3 induction windings, 4 water channels, 5 short circuit pads unshakable in one's determination
The explanation of Fig. 2:
1 core limb, 2 yoke 3 assembling bearings 4 water channels 5 internal thread holes 6 bearing 7 core limb pilot holes 8 assembling bearing assembling screws unshakable in one's determination unshakable in one's determination
The explanation of Fig. 3:
12 electromagnetism unshakable in one's determination are around 3 induction windings, 4 water channels, 5 short circuit pads, 6 hydraulic pressure switches, 7 draining valves, 8 water inlet pipes, 9 outlet pipes, 10 control circuits, 11 insulation coil holders, 12 insulating materials, 13 back side panels
Claims (7)
1, a kind of induction-type instantaneous electric water heater is made up of iron core, electromagnetism winding, induction winding, control circuit and housing, it is characterized in that induction-type instantaneous heating is by unshakable in one's determination＜1〉and induction winding＜3 form.
2, the described iron core of claim 1＜1 〉, it is characterized in that the monoblock type iron core that eddy current unshakable in one's determination can flow around the center line of core limb and yoke unshakable in one's determination.
3, the described iron core of claim 1＜1 〉, it is characterized in that having in core limb and the yoke unshakable in one's determination water channel＜4 that axially connect mutually, water can be from water channel＜4〉an end flow into, flow out from the other end.
4, the described iron core of claim 1＜1 〉, the eddy current that it is characterized in that in the iron core the multiple different frequency that induction produces makes it heating becomes the induction type heating.
5, the described induction winding of claim 1＜3 〉, it is characterized in that responding to winding is to be formed by the metal tube system of scratching, water can flow into from an end of induction winding, flows out from the other end.
6, the described induction winding of claim 1＜3 〉, it is characterized in that two terminal shortcircuits of responding to winding connect, and make this induction winding constitute the short circuit current road.
7, the described induction winding of claim 1＜3 〉, the short circuit current that it is characterized in that responding to the multiple different frequency that induction produces in the winding makes it heating becomes the induction type heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00117368 CN1340680A (en) | 2000-08-28 | 2000-08-28 | Induction-type instantaneous electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00117368 CN1340680A (en) | 2000-08-28 | 2000-08-28 | Induction-type instantaneous electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1340680A true CN1340680A (en) | 2002-03-20 |
Family
ID=4586742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00117368 Pending CN1340680A (en) | 2000-08-28 | 2000-08-28 | Induction-type instantaneous electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1340680A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007115487A1 (en) * | 2006-04-10 | 2007-10-18 | Guoshui Li | A frequency conversion electromagnetic induction instantaneously-heating type water heater |
-
2000
- 2000-08-28 CN CN 00117368 patent/CN1340680A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007115487A1 (en) * | 2006-04-10 | 2007-10-18 | Guoshui Li | A frequency conversion electromagnetic induction instantaneously-heating type water heater |
| CN100383467C (en) * | 2006-04-10 | 2008-04-23 | 李国水 | Instant heating water heater using conversion electromagnetic induction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2602300Y (en) | Electromagnet water heater | |
| CN104191081B (en) | Device and its welding method for copper pipe in refrigeration equipment and Al pipe butt welding | |
| CN2454711Y (en) | Inductive instant-heating electric water-heater | |
| CN206628756U (en) | A kind of electrical equipment special efficient heat radiating type switch cubicle | |
| CN1340680A (en) | Induction-type instantaneous electric water heater | |
| AU3266193A (en) | Induction furnace | |
| CN116847495A (en) | Electromagnetic induction coil heating actuating mechanism and working method thereof | |
| CN2274315Y (en) | Electromagnetic-induction heater | |
| CN214917583U (en) | Paint dipping equipment is used in production of copper coil | |
| CN2575548Y (en) | Air conditioning system for electric heating boiler | |
| CN200980177Y (en) | A heating device by main-frequency induction metal short circuit liquid magnetism | |
| Koertzen et al. | Investigating the influence of material properties on the efficiency of an induction heating load transformer using FEM simulations | |
| CN213938369U (en) | Electromagnetic induction heating structure | |
| CN2160078Y (en) | Power saving power frequency induction electromagnetic stove | |
| CN203165636U (en) | Dry-type transformer | |
| CN108571752B (en) | Single coil electromagnetic oven capable of simultaneously using heat radiation energy and electromagnetic induction energy | |
| CN212457381U (en) | Magnetic energy CNPTC frequency conversion high-efficiency heating equipment | |
| CN1062106C (en) | Three-phase power frequency electromagnetic induction heating means and apparatus | |
| CN109084580B (en) | Intermediate frequency induction heating device | |
| BG2911U1 (en) | Induction heater | |
| CN102360865B (en) | High-strength gas discharge lamp inductive ballast | |
| CN207520995U (en) | A kind of fuel gas magnetization energy-saving device | |
| CN2473847Y (en) | Low temperature electric heater | |
| RU2251226C1 (en) | Induction plant | |
| RU59927U1 (en) | HEAT TRANSFORMER UNIT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |