CN2644973Y

CN2644973Y - Electromagnetic instantaneous water heater

Info

Publication number: CN2644973Y
Application number: CN 03250187
Authority: CN
Inventors: 曾维平
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-30
Filing date: 2003-08-30
Publication date: 2004-09-29
Anticipated expiration: 2013-08-30

Abstract

The utility model provides an electromagnetic instantaneous water heater, comprising a housing, a power plug with a creepage protector, a converter, a heating coil, a heating water tank, a temperature limiting switch, a water control switch and a water valve. The utility model is characterized in that the heating water tank comprises two paralleling rectangular flumes which are communicated by a water inlet pipe and a water outlet pipe; a plane shaped transduce tablet is arranged in each of the water tank; the heating coil sealed by an insulation layer is fixed between the two water tanks. The electromagnetic instantaneous water heater directly heats up water through the vortex produced on the transduce tablet according to the electromagnetic induction theory. The transduce tablet in water is not connected with any electrical conductor, thus the problem of the complete isolation of water and electricity which is difficult for ordinary electric water heaters to cope with is solved. With the creepage protection and the over temperature protection and other protections, the water control valve and the flow adjusting temperature, the utility model is not only safe and reliable in use, but also simple and convenient in operation. The utility model additionally has the advantages of simple structure, high thermal efficiency, fast heating speed, no consumption of oxygen, no pollution, small volume, light weight and low cost.

Description

The electromagnetic type fast water heater

(1) technical field:

The utility model relates to electrical heated appliance, specifically a kind of electromagnetic type fast water heater.

(2) background technology:

At present, the most scabrous problem of electric heater is exactly that water power safety is isolated, and secondly is efficiency.Now the being seen electric heater in market adopts the heating of water storage type electrothermal tube mostly, and volume is big, efficient is low, heating is slow, poor safety performance and installing and use inconvenience all; And the another kind of water heater that adopts the ceramic-type electric heater, its ceramic heater manufacturing process complexity, cost height, instructions for use are relatively stricter, fragile, and its too high market price has limited its scope of application and selling market greatly.

(3) utility model content:

The purpose of this utility model provides a kind of electromagnetic type fast water heater, and it takes electromagnetic induction heating, has characteristics such as water power is isolated fully, firing rate is fast, conversion efficiency is high, Automatic Control.

In order to achieve the above object; the technical scheme that the utility model is taked is: this electromagnetic type fast water heater comprises housing, has the attaching plug of earth leakage protective device, the heater coil that is connected the supply frequency converter output terminal, water-control switch and water valve; it is characterized in that: the bottom in the described housing; two parallel rectangle water are installed; interconnect by inlet tube and outlet tube and to constitute heating water tank; plate shaped transducing sheet all is housed in each tank, installs heater coil between two tanks by the heat-resistant insulating layer sealing.

Near the tank delivery port, be provided with temperature limit switch TK, when water temperature exceeds 65 ℃, cut off heating power supply automatically.

The utility model has the advantages that: 1, owing to adopt the way of electromagnetic induction heating, the transducing sheet in water does not have with any electric conductor and is connected, therefore; realized the isolation fully of water power; so safe and reliable to operation, in addition, the leakage, breaking protector is installed on attaching plug; as long as plug in; no matter whether use, in case leakage current surpasses safe current, protector disconnects water heater power supply immediately; accomplished duplicate protection, used more safe and reliable.2, utilize the transducing sheet directly to the water heating, speed is fast, opens water valve, just has flow of hot water about 2～3 seconds and goes out, and utilizes the Flow-rate adjustment water temperature of water simultaneously, opens big water valve water temperature and descends, and turns down the water valve water temperature and rises, and saves trouble very much; The transducing sheet directly and water carry out heat exchange, heat-energy losses is few, the conversion efficiency height is compared with electric heating tubular type water heater, the thermal efficiency can improve 30%.3, water control type Automatic Control, as long as the breakdown water valve has water to flow, water-control switch is just connected power supply, starts heater coil work, closes water valve, and current stop, and switch is with regard to deenergization.In addition, also be provided with temperature limit switch, can avoid water temperature too high and the scald accident takes place, safety not only, and use very convenient.4, volume is little: high by 25 * wide by 20 * thick 6cm; In light weight: as to be about 1.5kg; Machine volume, weight only are 1/2 of like product.5, simple in structure, easy to operate, easy to manufacture, cost is low, price is 1/3 of a like product only, cost performance is better than like product.6, oxygen consumption, pollution-free not.

(4) description of drawings:

Fig. 1 is the schematic diagram of this electromagnetic type fast water heater profile structure.

Fig. 2 is the front view that Fig. 1 raises cover.

Fig. 3 is the longitudinal sectional view of Fig. 2.

Fig. 4 is the top plan view of water tank among Fig. 2.

Fig. 5 is the internal circuit diagram of Fig. 1.

(5) specific embodiment:

Below in conjunction with accompanying drawing the utility model is described in further detail:

In Fig. 1, the 1st, housing, the 2nd, cover, the 3rd, the fixed installation hole, the 4th, Leakage protection plug, the 5th, power line, the 6th, water inlet pipe mouth, the 7th, effluent pipe mouth, LED are relay indicating lights, LED2 is a power supply indicator; In Fig. 2, the 12nd, printed circuit board (PCB), T1 are transformers, the 11st, the support of fixing circuit board, the 10th, dividing plate, the 9th, heating water tank, the 8th, outlet valve, SK are water-control switch, TK is a temperature limit switch; In Fig. 3 and Fig. 4, the 13rd, tank, the 14th, transducing sheet, L4 are heater coils, the 15th, the insulation confining bed.

Distinguishing characteristics of the present utility model is a heating water tank.From Fig. 3 and Fig. 4 as seen, it is two parallel Rectangular Water Trough 13, interconnect by water inlet pipe 6 and outlet pipe 7 and to constitute, the high plate shaped transducing sheet 14 of magnetic capacity all is housed in each tank, install the electromagnetic heating coil L4 by multi-layered insulating materials 15 sealings between two tanks, L4 is driven by the converter circuit of Fig. 5, when the high frequency alternating current of 20～50KHZ flows through L4, transducing sheet 14 will produce eddy current and generate heat under the effect of electromagnetic induction, directly the water that flows through is heated.

Fig. 5 is the circuit diagram of converter, and it is the prior art of comparative maturity, and being used for the high frequency alternating current that civil power with 50HZ is transformed into 20～50KHZ provides heating current to heater coil L4.Mainly form by main circuit, vibration driving and accessory circuit and control circuit.

Main circuit comprises: reactor LH101, rectifier ZL101, filter inductance L1, L2, capacitor C 101, C102, C103, high power switch triode VT101, fly-wheel diode VD101.

Oscillation drive circuit comprises: capacitor C 401, resistance R 404, four high guaily unit voltage comparator ic chip 2, transistor VT402, VT401, VT301, VT302, VT303, VT304.

Control circuit is connected on the elementary of low-tension transformer T201 by water-control switch SK, temperature limit switch TK and constitutes.SK is used for starting and powered-down, and TK is used for cutting off the electricity supply when water temperature exceeds 65 ℃.

The circuit working process:

After the breakdown water valve has water to flow, water-control switch SK closure, connect the working power of circuit, three end integrated voltage regulator source IC1 have the output of 12V DC voltage, the original state of circuit is: the voltage of the inverting input of A1 is lower than the voltage of in-phase input end , output 2 pin output high level, VT402, VT401 conducting, VT301 ends, and VT302 ends, VT303, VT304 conducting, VT101 ends, the voltage of the in-phase input end of A2 is higher than the voltage of inverting input at this moment, and output 1 pin ends, and is equivalent to open circuit.

Meanwhile, electric current is arranged through 403 pairs of capacitor C of resistance R 401 charging, when charging voltage rises to A1 end and is higher than the voltage of end, 2 pin output low levels, VT402, VT401 end, the VT301 conducting, the VT302 conducting, VT303, VT304 end, the VT101 conducting.After the VT101 conducting, the voltage that b is ordered descends, A2 voltage is lower than the terminal voltage, 1 pin output electronegative potential, and the voltage on the C is by resistance 405, diode VD401 discharge, voltage on the A2 end falls thereupon, when dropping to the terminal voltage and be lower than the terminal voltage, output 2 pin end, and are equivalent to open circuit, subsequent conditioning circuit is upset and then, and VT402 ends.After this, along with the repeated charge of capacitor C, circuit just constantly repeats said process, so heater coil just constantly has higher-order of oscillation electric current to flow through.

Install and use:

1, on the suitable height metope of needs, makes a call to two apertures, water heater is screwed or hangs on the metope that has been fixed with screw, and near water heater, a supply socket that has switch is installed by Fig. 1 installing hole size with the place of water heater.

2, be connected with the tap water supply mouth of pipe with withstand voltage hose one end, the other end is connected with the water inlet tube of water heater mouth; Be connected with the effluent pipe mouth of water heater with heat-resisting hose one end, the other end is a hot water outlet, can be connected with other water appliance of shower nozzle, also can the vertical water mouth down directly places the top of water appliance.

3, after the water test inspection does not have drainage, close water valve, the attaching plug that will have earth leakage protective device is inserted on the socket; this moment, power supply indicator LED2 was bright, and the expression power supply is switched on, opens water valve; relay indicating light LED1 is bright, and indication circuit has been switched on to the solenoid heating, and subcooled water should have hot water to flow out after 2～3 seconds; adjust the adjustable water saving temperature of flow of water valve control water; close water valve, relay indicating light is turned off power switch; power supply indicator goes out, and shuts down.

Claims

1, a kind of electromagnetic type fast water heater; comprise housing, have the attaching plug of earth leakage protective device, the heater coil that is connected the supply frequency converter output terminal, water-control switch and water valve; it is characterized in that: the bottom in the described housing; two parallel Rectangular Water Trough are installed; interconnect by inlet tube and outlet tube and to constitute heating water tank; plate shaped transducing sheet all is housed in each tank, installs heater coil between two tanks by the heat-resistant insulating layer sealing.

2, electromagnetic type fast water heater according to claim 1 is characterized in that: near the tank delivery port, be provided with temperature limit switch, when water temperature exceeds 65 ℃, cut off heating power supply automatically.