CN2746308Y

CN2746308Y - Electric water heater without water tank

Info

Publication number: CN2746308Y
Application number: CN 200420060265
Authority: CN
Inventors: 吴之圭
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-16
Filing date: 2004-07-16
Publication date: 2005-12-14
Anticipated expiration: 2014-07-16

Abstract

The utility model discloses an electric water heater without a water tank, comprising an iron core primary wire bag which is electrically connected to a power supply, and a secondary wire pipe. The iron core is a ring iron core formed by the sheet belts of the metal conductor in a tightly winding mode, and at least one ring of the center of the ring hole forms the hollow pipe of the metal conductor of the secondary wire pipe and directly forms a heating load; the water inlet of the heating load and the water outlet are respectively connected to a water inlet pipe and a water outlet pipe. The hollow pipe of the conductor used as the heating load of the utility model uses a 'skin effect' that the current of the conductor of the metal pipe accumulates on the heating load; the electric water heater without a water tank has low power consumption, rapid heating, high heat efficiency, and constant water temperature, having no cold and hot phenomenon; as cutting the magnetic field of the wire pipe, the water flow is magnetized to form magnetic water, and the probability of the deposition is small; the operating voltage is low, the safety of the operating environment is high, and the safe problem of the electric environment is solved nearly without regarding the anti-earth leakage protection device and an anti-electricity wall device; accordingly, the problems that the existing water tank type electric water heater occupies large space volume and that the heating time is long are fundamentally solved.

Description

No water tank electric heater

Technical field

The utility model relates to a kind of electric heater.Relate in particular to a kind of electromagnetic water heater.

Technical background

Electric heater in the known technology is electric heating element to be placed on after by insulation processing carry out preheating in the water tank, pass through aqueduct shower nozzle then or pass through a series of water temperature controling circuit, incrustation scale processing unit, hydraulic pressure circuit breaker, or the intelligent control of computer controller realizes the heating to water.The electric heating element that they adopt all is that the power conversion with resistance heating directly contacts with water tank water.Its weak point is the power consumption height, and the heat efficiency is low.Water tank takes up room greatly, the preheating stand-by period is long, the water tank moisture storage capacity is limited, can not guarantee enough use hot water flows, therefore regularly heating controller or two-way heating anode stub layering heating technique heat the supply that guarantees hot water in advance to the water that it is stored in the inner water tank, the pre-warmed time needs of the electric heater of common 1500W 1～2 hour at times to have to adopt Computerized intelligent.At secure context,, must adopt proof and electric leakage-proof safety device and electricity-preventing wall device to solve the safety issue of power utilization environment for stopping forward, converse electrical leakage.

In nearly thousand the electric heater patents of invention and utility model patent that openly relates at Chinese patent, almost having accounted for 99% electric heater all is the version of forming with water tank and resistance electric heating element.The electromagnetic water heater more approaching with the utility model, comprise that No. 90224501.5 disclosed a kind of safe electric water heaters of Chinese patent, No. 98216667.2 disclosed magnetic induction type electric heaters of Chinese patent, No. 01206416.5 disclosed quick continous way electric heater of Chinese patent and No. 0117368.5 disclosed induction-type instantaneous electric water heater of Chinese patent have adopted iron core, primary coil and secondary coil, have almost utilized the short circuit heating system of secondary coil to realize the water that flows into its pipeline is heated simultaneously.Wherein the structure of No. 98216667.2 magnetic induction type electric heater Chinese patents is the cold water that flows into becket with the short circuit current heating of one group of entrance point of secondary coil and port of export short circuit weld metal ring successively; 01206416.5 linking to each other with some series connection heating tubes with the short circuit secondary coil in parallel of closed loop, number disclosed quick continous way electric heater heats running water by in its pipe; 0117368.5 number disclosed induction-type instantaneous electric water heater is made heater element with unshakable in one's determination and electromagnetism winding, it utilizes secondary pipeline heating realization that induction produces in the iron core eddy current and multiturn metal tube induction winding head and the tail two terminal shortcircuits the connect heating to water.This class electric heater all is to rely on the secondary short circuit heating of closed loop as load in sum, the potential difference that is reflected at load is almost nil, in theory still, in the utilization of reality, all can not realize the conversion of energy, because there is not the load of the voltage power that is equal to nothing to produce.Actual result can be described as infeasible, or even impracticable.A mode that has also adopted the rectification heating is wherein arranged, rely on the DC heating load, such heating can be described as the heat energy that can not satisfy water heater.Wherein rely on eddy current unshakable in one's determination heating and the secondary heating of short circuit, short circuit secondary actual be not produce heat energy, and the heat energy of eddy current generation also is not enough.The heating element that they structurally need is also many, and structure is more complicated also.Heating element is many, and the electric current shunting is also many, and the hot merit effect is also low.Wherein adopt electric current that heating element in parallel obtains can with heating element increase and declines that is directly proportional, the speed of electric heating is slack-off thereupon, and the cost height, power loss is big, use power height.

Summary of the invention

Big in order to overcome existing water tank electric heater volume, warm-up time is long, can not supply with the deficiency of hot water immediately and overcome to rely on secondary short circuit heating magnetic induction electric heater heating link many, complex structure, the cost height, power consumption is big, defective, it is a kind of simple in structure that the utility model provides, and heating load is direct, and shunt current is few, low-voltage and high-current, safe, power consumption is low, the no water tank electric heater that the heat efficiency is high.

The purpose of this utility model is to realize like this, a kind of no water tank electric heater, the unshakable in one's determination elementary line bag and the secondary spool that comprise an electric connection of power supply, it is characterized in that described iron core is closely around the ring-shaped core that forms by metallic conductor sheet band, but center on the ring-shaped core helix bag of with good grounds heating power size and tap on it, the ring-shaped core centre bore that the metallic conductor hollow pipe that has at least a circle to constitute secondary spool passes described ring-shaped core helix bag directly constitutes heating load, and the water inlet end of this heating load is connected water inlet pipe and outlet pipe respectively with the water side.

The utility model has following useful good effect than prior art.

The utility model is closely tight than the rectangular core that is laminated around the ring-shaped core that forms, and the gap is little, the magnetic flux density height, and eddy current loss is little.Magnetic field line as the ring-shaped core helix packet generation of elementary transformation is concentrated, and magnetic flux density is big, and the load current that obtains by Ampere circuit law is big.The metallic conductor hollow pipe that constitutes secondary spool heating load has made full use of the big electric current heat energy that metallic conductor electric current " kelvin effect " produces and has been collected in heating load, the power height, and power loss is little, power consumption is low, and heating is rapid, heat efficiency height, water temperature is permanent steady, does not have sometimes hot and sometimes cold phenomenon.Operating voltage only has several volts, and environment for use is safe, can not consider that almost proof and electric leakage-proof safety device and electricity-preventing wall device solve the safety issue of power utilization environment.Directly constitute heating load as secondary metallic conductor hollow pipe, overall structure is simple, convenient for installation and maintenance, it is big and wait as long for the problem of heating fundamentally to have solved the existing water tank type electric heater volume that takes up space, overcome and used secondary short circuited load heating electric heater heating link many, complex structure, cost height, power loss is big, uses the high deficiency of power.Wherein cut magnetic field that its spool self the produces formation magnetized drinking water that is magnetized, thereby it is little to produce the probability of incrustation scale by the flow of hot water of secondary spool.

In order to further specify rather than limit above-mentioned way of realization of the present utility model, provide most preferred embodiment below in conjunction with accompanying drawing, thereby make details of the present utility model and advantage become more obvious.

Description of drawings

Fig. 1 is an embodiment organigram of the present utility model.

Fig. 2 is the cross section perspective view of Fig. 1.

Specific embodiment

Fig. 1 described by shell body and control panel (not shown) and be installed in the housing one by steel band silicon steel sheet or copper strips closely around the annulus iron core 5 that constitutes, even thickly one group of circular coil on the annulus magnetizing mediums iron core forms ring-shaped core helical line bag 1.This line bag 1 is equivalent to a transformer elementary of electric connection of power supply 4.Be wound with respect to the secondary spool 2 of the helical of primary on its ring.This helical spool is one and has the metallic conductor hollow pipe that water inlet end and water side are connected water inlet pipe and outlet pipe respectively that its material can be the conductor material of low-resistivity, such as alloy materials such as silver, copper, aluminium, titaniums, can select red copper for use from cost consideration.Described helical spool 2 preferably passes the ring-shaped core center of ring-shaped core helix bag, is fixed in the center of annular distance simultaneously with floride-free material of the material ammoniacum of heat-insulating property brilliance or epoxide resin material embedding.Described secondary spool 2 heating loads that pass ring-shaped core helix bag 1 center ring hole, it penetrates partly can be the straightway of cylinder bus in the parallel spires bag 1, this straightway usually with the axis line parallel of the interior cylinder of helix bag.Be at least a circle as the secondary spool 2 of the helical of direct load, preferred forms is two circles, three circles or four circles, and the number of turns is not The more the better, because the many more electric currents that may shunt of the number of turns are also many more.Can consider to be coated with at this inside pipe wall and resist, prevent the permanent hot Pueraria lobota gold plating that contains the Pueraria lobota gold element of bacterial adhesion breeding from running water surface burn into permeating corrosion.Also can adopt chromium plating, the zinc-plated or antirust processing of titanizing.Between power supply and water inlet pipe, can be connected with the safety valve hydraulic pressure switch 3 that links with hydraulic pressure, so that it starts power supply to forfend the dry combustion method of secondary load spool when hydraulic pressure is arranged by hydraulic pressure switch 3.For ease of the adjusting of water temperature, between the unshakable in one's determination elementary line bag that connects power supply, the reverse-blocking tetrode thyristor of regulating water temperature can be housed.Elementary line bag unshakable in one's determination can have the tap of control water heater watt level.

For ease of the rapid constant temperature of water heater, another embodiment of the present utility model has at least one group to be connected in parallel by a ring-shaped core line bag and to provide hot water supply after another line bag unshakable in one's determination and its pass elementary heating load spool series connection in this two ring-shaped cores helix bag annular center hole respectively.That is: can be one or more groups ring-shaped core line bag 1 with different winding different capacities (not shown) that is connected in parallel, it passes respectively, and the elementary spool 2 of heating load of respectively organizing ring-shaped core helix bag 1 annular center hole connects water inlet pipe by the back of connecting and outlet pipe provides hot water supply.It is to enter next stage line bag unshakable in one's determination secondary load spool after the secondary load preheating by last line bag 1 unshakable in one's determination earlier hot water supply is provided, and can realize that like this hot water of multistage relay baton type transmits.

Another embodiment of the present utility model is that the described secondary spool 2 that passes ring-shaped core helix bag center ring hole can be with insulation heat-resistant tube or instlated tubular (not shown).This insulation heat-resistant tube can be that spool 2 secondary with it forms the annular water route that feeds the Inlet and outlet water passage, so just can make its secondary spool 2 and insulation heat-resistant tube form two-way flowing water passage, one is the flowing water passage by secondary spool 2 inwall pipelines, one is the annular flow channel that forms by secondary spool 2 outer walls and insulation heat-resistant tube inwall, this circulating water can reduce the loss of secondary spool outer wall heat energy, thereby improves the heat efficiency of electric heater.

Above-described only is preferred embodiment of the present utility model.Should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model principle; can also make some distortion and improvement; such as installing microcomputer controller, sound prompt device, automatic constant-temperature fully automatic operation device additional at this electric heater; or temperature indicator etc., also should be considered as belonging to protection range of the present utility model.

Claims

1. no water tank electric heater, the unshakable in one's determination elementary line bag and the secondary spool that comprise an electric connection of power supply, it is characterized in that described iron core is closely around the ring-shaped core that forms by metallic conductor sheet band, but center on the ring-shaped core helix bag of with good grounds heating power size and tap on it, the ring-shaped core center ring hole that the metallic conductor hollow pipe that has at least a circle to constitute secondary spool passes described ring-shaped core helix bag directly constitutes heating load, and the water inlet end of this heating load is connected water inlet pipe and outlet pipe respectively with the water side.

2. by the described electric heater of claim 1, it is characterized in that: have at least one group to be connected in parallel by a ring-shaped core line bag and to provide hot water supply after another line bag unshakable in one's determination and its pass elementary heating load spool series connection in this two ring-shaped cores helix bag annular center hole respectively.

3. by claim 1 or 2 described electric heaters, it is characterized in that: described ring-shaped core is closely around the annulus iron core that constitutes by the steel band silicon steel sheet.

4. by claim 1 or 2 described electric heaters, it is characterized in that: described metallic conductor hollow pipe is the conductor material of low-resistivity.

5. by claim 1 or 2 described electric heaters, it is characterized in that: described helical spool is two circles, three circle or four circles.

6. by claim 1 or 2 described electric heaters, it is characterized in that: between power supply and water inlet pipe, be connected with hydraulic pressure switch with the hydraulic pressure interlock.

7. by claim 1 or 2 described electric heaters, it is characterized in that: the described secondary spool heating load that passes ring-shaped core helix bag center ring hole, it penetrates partly is the straightway of cylinder bus in the parallel spires bag.

8. by claim 1 or 2 described electric heaters, it is characterized in that: the described secondary spool that passes ring-shaped core helix bag center ring hole also is with the insulation heat-resistant tube.