CN203010900U - Electromagnetic induction type quick water heating device - Google Patents

Abstract

The utility model provides an electromagnetic induction type quick water heating device and relates to an electric apparatus. A heating unit charger bar is arranged in the center of the electromagnetic induction type quick water heating device; a thermal cut-out protector installing hole is formed in the center of the heating unit charge bar; a thermal cut-out protector is installed in the thermal cut-out protector hole; a lead wire of the thermal cut-out protector is lead out through the thermal cut-out protector installing hole and seals the thermal cut-out protector installing hole by a sealing cushion; the heating unit charge bar is provided with a spiral slot; a spiral strut member which is made by a heat-resisting insulating material thin bar is embedded in the spiral slot; the heating unit charge bar, the thermal cut-out protector, the lead wire of the thermal cut-out protector, the sealing cushion, the spiral slot and the spiral strut member are arranged inside a tube-shaped insulating body, and spiral gaps formed between the heating unit charge bar, the tube-shaped insulating body and the spiral strut member are water channels. The electromagnetic induction type quick water heating device has the advantages of being safe and high efficient, saving energy, and having a protector device which is sensitive and accurate. The electromagnetic induction type quick water heating device can well solve the direct or indirect induction power leakage problems of existing various electric water heaters, and has excellent magnetization functions on water in the heating process. The water can be used as superior magnetic water.

Description

Electromagnetic induction-type quick water heating device

Technical field

The utility model relates to a kind of electrical equipment.

Background technology

The existing electric heater that is used for shower divides three kinds substantially to the mode of heating of water, and 1, utilize water resistance directly water to be powered up the mode that produces heat water is directly heated; 2, to resistive heat production body power up produce heat by insulating barrier heat conduction to the water indirect, 3, utilize electromagnetic induction principle to make a magnetic conductor heating, water is heated by the direct heat exchange with heater.Directly the mode efficient to the water heating is higher although water resistance is powered up, but different water quality heating effects is different and be not easy to control, easily produce electric leakage when water quality is bad, can there be hydrolysis to cause danger to water during energising, so it is dangerous to the water heating to utilize water resistance directly water to be powered up the mode that produces heat; Resistive heat production body is powered up the generation heat relatively safe to the mode of water indirect by insulating barrier heat conduction, but its security and the efficiency of heating surface are conflicts, thick dielectric layer be should add for pursuing safety, attenuate insulating barrier, the more difficult unification of security and the efficiency of heating surface needed for raising the efficiency.

utilize electromagnetic induction principle to make a magnetic conductor heating, water exchanges heated mode by the direct heat with heater, water has thicker insulator isolation with the electromagnetic induction coil that is added with electricity, the thickness of insulator and efficiency of heating surface relevance are little, although security and efficient all improve than being easier to, but still there are a lot of problems, such as: because of the problem electromagnetic induction coil of the structure bad coil burnout that causes of heat radiation can be because of work the time, and there is parasitic capacitance to exist between electromagnetic induction coil and water, the high-frequency alternating electric current that adds on electromagnetic induction coil can make water charged by this parasitic capacitance, these all can have influence on efficient and security to the water heating.Solved above subproblem in the ZL201010260385.7 patent of invention; but be arranged on the outside of whole heater because of the thermal cut-out protector of anti-dry, thus exist anti-dry protection insensitive, repeatedly can produce to tubular insulator very soon the problem such as destruction after dry combustion method because of heater heat production speed.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of have better security, more sensitive and accurate dry combustion method protection, higher efficient, the electromagnetic induction-type quick water heating device of more reasonable structure are provided.

the present invention is mainly by the heater charge bar, the Inlet and outlet water joint, the reducing crossover sub, the electromagnetic shielding decorative layer, interior external insulation layer, spiral support spare, the Isolated Shield layer, the tubular insulator projection, induction coil, the thermal cut-out protector, tubular insulator forms, solving the technical scheme that its technical problem adopts is: at the water-heating device center, the heater charge bar is set, heater charge bar center arranges thermal cut-out protector installing hole, in thermal cut-out protector installing hole, the thermal cut-out protector is installed, the lead-out wire of thermal cut-out protector is drawn by thermal cut-out protector installing hole, and with sealing gasket, thermal cut-out protector installing hole is sealed, on the heater charge bar, helicla flute is set, be inlaid with the spiral support spare that the thin rod of high-temperature insulation material is made in helicla flute, the material preferably polytetrafluoroethylene of spiral support spare, spiral support spare cross section is circular configuration, above assembly is placed in tubular insulator, the heater charge bar, the gap between screw that forms between tubular insulator and spiral support spare becomes water channel, tubular insulator top arranges O-ring seals, and the tubular insulator bottom is provided with projection, and the tubular insulator outside is wound around with litz wire and consists of induction coil, is wound around one deck Copper Foil as the Isolated Shield layer between induction coil and tubular insulator.Inside and outside inner insulating layer and the external insulation layer that all is provided with high dielectric strength of induction coil, external insulation layer outside winding one deck electromagnetic shielding decorative layer.

Design of the present utility model has advantages of safe, efficient, energy-conservation, due to anti-dry thermal cut-out protector is built-in, makes protective device more sensitive and accurate; And be provided with the spiral support spare of being made by the thin rod of high-temperature insulation material between heater and tubular insulator, infringement to tubular insulator when having reduced the heater dry combustion method may, make security higher, can solve well the direct or indirect induction electric leakage problem of present various electric heater, and in heating process, water there is good magnetization, can makes the magnetized drinking water of high-quality.

Description of drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated:

Fig. 1 is the utility model structure chart;

In figure: 1 water inlet joint, 2 reducing crossover subs, 3 helicla flutes, 4 spiral support spare cross sections, 5 thermal cut-out protector installing holes, 6 thermal cut-out protectors, 7 spiral support spares, 8 electromagnetic shielding decorative layers, 9 inner insulating layers, 10 Isolated Shield layers, 11 delivery port joints, 12 lead-out wires, 13 sealing gaskets, 14 O RunddichtringOs, 15 tubular insulators, 16 heater charge bars, 17 induction coils, 18 external insulation layers, 19 tubular insulator projections.

The specific embodiment

as shown in FIG.: at the water-heating device center, heater charge bar 16 is set, heater charge bar 16 first half centre drill one blind holes, the bottom of blind hole is bored one along radial direction and is connected the aperture of blind hole and mill a chain-wales, form thermal cut-out protector installing hole 5, in thermal cut-out protector installing hole 5, thermal cut-out protector 6 is installed, the lead-out wire 12 of thermal cut-out protector 6 is drawn by thermal cut-out protector installing hole 5, and with sealing gasket 13, thermal cut-out protector installing hole 5 is sealed, produce a helicla flute 3 that similar leading screw is the same with revolving mill-turn on heater charge bar 16, the pitch outline is larger, pass through in order to water, be inlaid with the spiral support spare 7 that the thin rod of high-temperature insulation material is made in helicla flute 3, the material preferably polytetrafluoroethylene of spiral support spare 7, spiral support spare cross section 4 is circular configuration, above assembly is placed in tubular insulator 15, heater charge bar 16, the gap between screw that forms between tubular insulator 15 and spiral support spare 4 becomes water channel, make rotational flow in the spiral channel of water between tubular insulator 15 and heater charge bar 16, fully absorb the heat that heater charge bar 16 produces, tubular insulator 15 arranges O-ring seals 14 with reducing crossover sub 2 junctions, for making water can flow through smoothly heater, tubular insulator 15 bottoms are provided with projection 19, support heater charge bar 16, prevent that its decline from blocking outlet, tubular insulator 15 outsides are wound around with litz wire and consist of induction coil 17, litz wire is stranded the forming of the thinner enamel covered wire of multiply, tubular insulator 15 is also not beneficial too thick, generally in 2 millimeter, the heat overwhelming majority of induction coil 17 generations can be absorbed by water by conduction pattern by the interior mobile water of tubular insulator 15 like this, induction coil 17 is worked long hours can not enter high temperature, also further improved the efficient of heater, although induction coil 17 can directly not electrically contact in water generates because of the existence of tubular insulator 15, but there is parasitic capacitance to exist between induction coil 17 and water, because of induction coil 17 larger with the relative area of water, so the value of this parasitic capacitance is also larger, so and for making the little induction coil 17 of electromagnetic induction heater volume will apply the high-frequency alternating electric current, this high-frequency alternating electric current can form higher Leakage Current to water by the parasitic capacitance between induction coil 17 and water, affected the security feature of electromagnetic induction heater, the utility model design will be paid attention to the electrical quantity performance of material on the one hand when selecting the material of tubular insulator for this reason, reduce parasitic capacitance, be wound around on the other hand one deck Copper Foil as Isolated Shield layer 10 between induction coil 17 and tubular insulator 15, to eliminate the Leakage Current of parasitic capacitance between induction coil and water, as long as this ground connection Isolated Shield layer 10 is connected on a constant current potential, the utility model is connected on the rectifier negative line, inside and outside inner insulating layer 9 and the external insulation layer 18 that all is provided with high dielectric strength of induction coil 17, external insulation layer 18 outsides winding one deck electromagnetic shielding decorative layers 8.The structure of water inlet joint 1, reducing crossover sub 2, electromagnetic shielding decorative layer 8, inner insulating layer 9, Isolated Shield layer 10, delivery port joint 11, O RunddichtringO 14, tubular insulator 15, induction coil 17, external insulation layer 18, tubular insulator projection 19 is same as the prior art.

Claims (2)

1. electromagnetic induction-type quick water heating device, by the heater charge bar, the Inlet and outlet water joint, the reducing crossover sub, the electromagnetic shielding decorative layer, interior external insulation layer, spiral support spare, the Isolated Shield layer, the tubular insulator projection, induction coil, the thermal cut-out protector, tubular insulator forms, it is characterized in that the water-heating device center arranges the heater charge bar, heater charge bar center arranges thermal cut-out protector installing hole, in thermal cut-out protector installing hole, the thermal cut-out protector is installed, the lead-out wire of thermal cut-out protector is drawn by thermal cut-out protector installing hole, and with sealing gasket, thermal cut-out protector installing hole is sealed, on the heater charge bar, helicla flute is set, be inlaid with the spiral support spare that the thin rod of high-temperature insulation material is made in helicla flute, above assembly is placed in tubular insulator, the heater charge bar, the gap between screw that forms between tubular insulator and spiral support spare becomes water channel, tubular insulator top arranges O-ring seals, and the tubular insulator bottom is provided with projection, and the tubular insulator outside is wound around with litz wire and consists of induction coil, is wound around one deck Copper Foil as the Isolated Shield layer between induction coil and tubular insulator, inside and outside inner insulating layer and the external insulation layer that all is provided with high dielectric strength of induction coil, external insulation layer outside winding one deck electromagnetic shielding decorative layer.

2. electromagnetic induction-type quick water heating device according to claim 1, its feature BeThe material preferably polytetrafluoroethylene of spiral support spare, spiral support spare cross section is circular configuration.

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