CN101929729B

CN101929729B - Electromagnetic induction-type quick water heating device

Info

Publication number: CN101929729B
Application number: CN201010260385A
Authority: CN
Inventors: 邸弋; 邸峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-18
Filing date: 2010-08-18
Publication date: 2012-10-10
Anticipated expiration: 2030-08-18
Also published as: CN101929729A

Abstract

The invention discloses an electromagnetic induction-type quick water heating device, relating to a heat exchange instrument. A heating element charge bar is arranged in the center of the water heating device, is provided with a spiral water channel and is arranged in a tubular insulator; the tubular insulator is wound by a high-frequency electromagnetic wire to form an induction coil; a layer of copper foil is wound between the induction coil and the tubular insulator to be used as an isolating shield layer; and the isolating shield layer is connected on an unchangeable potential. An inner insulating layer and an outer insulating layer with high electric impedance are arranged inside and outside the induction coil; the outer insulating layer is wound by a layer of electromagnetic shield decorative layer; and a heat fuse protector is arranged on the electromagnetic shield decorative layer. The invention has the advantages of high efficiency and energy saving; the protective device has scientific and reasonable design and reliable safety, thereby well solving the problem that the traditional various electric heaters directly or indirectly leak electricity; and in addition, the invention has favorable magnetization function on water and can be used for producing high-quality magnetized water.

Description

Electromagnetic induction-type quick water heating device

Technical field

The invention belongs to the heat transfer technology field.

Background technology

The existing electric heater that is used for shower divides three kinds basically to the mode of heating of water, and 1, utilize water resistance directly water resistance to be powered up to produce heat water is directly heated; 2, to resistive heat production body power up produce heat through insulating barrier heat conduction to the water indirect, 3, utilize electromagnetic induction that one magnetic conductor is heated, water is heated through the direct heat exchange with heater.Though water resistance is powered up directly higher to the mode efficient of water heating; But different water quality heats is different and be not easy control; Be easy to generate electric leakage when water quality is bad, it is dangerous to have hydrolysis to produce to water during energising, so water resistance is powered up directly dangerous to the mode of water heating; It is relatively safe to the mode of water indirect through insulating barrier heat conduction that resistive heat production body is powered up the generation heat; But its security and the efficiency of heating surface are a pair of contradiction; Should add thick dielectric layer for pursuing safety, need the attenuate insulating barrier for raising the efficiency, the security and the efficiency of heating surface are difficult unified.

At present, existing utilize electromagnetic induction that one magnetic conductor is heated, water exchanges heated mode through the direct heat with heater, though security and efficient increase, but still has a lot of problems." tubular high-frequency electromagnetic induction heating type water heater " of Chinese invention patent CN101275780A bulletin, its heating part is a sealed tube, electromagnetic induction coil packs; Water is from flow through between the two from bottom to top; " electromagnet water heater " of Chinese invention patent CN1492203A bulletin, its electromagnetic heater is a telescoping structure, water is from electromagnetic heater intermediate flow mistake; Because electromagnetic induction coil and current are far away; Coil heating is serious, for avoiding coil burnout, is provided with the cooling water circulation pipe in the electromagnet water heater appearance.The common issue with of above-mentioned two patented products is that the inside and outside screen layer of electromagnetic induction coil is not set; Having parasitic capacitance between render electrical magnetic induction coil and water and the heater exists; Produce the electric current that leaks; The high frequency alternating current that adds on the electromagnetic induction coil can make water charged through this parasitic capacitance, and these all can have influence on the security of water heater.

Summary of the invention

The purpose of this invention is to provide a kind of new high-efficiency, energy-conserving and electromagnetical induction type quick water heating device, dangerous with the mode that solves the prior art products heating; The resistive heat production body security and the efficiency of heating surface are difficult unified; And the parasitic capacitance between electromagnetic water heater electromagnetic induction coil and water and the heater makes the charged problems such as security that have influence on water heater of water; Make electric heater have better security, higher efficient, more reasonable structure.

The present invention mainly is made up of heater, water channel, induction coil, sealing ring, water inlet, delivery port; Solving the technical scheme that its technical problem adopts is: at the water-heating device center heater charge bar is set; On the heater charge bar spiral channel is set; The heater charge bar places in the tubular insulator, and the internal diameter of tubular insulator will more closely cooperate with the heater charge bar external diameter that is carved with spiral channel, and rotation is flowed in the spiral channel of water between tubular insulator and heater charge bar; The tubular insulator outside is twined with litz wire and is constituted into induction coil; Between induction coil and tubular insulator, twine and one deck Copper Foil is set as the Isolated Shield layer, to eliminate the Leakage Current of parasitic capacitance between induction coil and water and the heater, this Isolated Shield layer is connected on the constant potential.At inside and outside inner insulating layer and the external insulation layer that is provided with Gao Kangdian of induction coil, external insulation layer twines one deck electromagnetic shielding decorative layer outward.

The present invention has efficiently, energy-saving advantages; And protective device is provided with scientific and reasonable, and is safe and reliable, can solve the direct or indirect induction electric leakage problem of present various electric heater well; And in heating process, water there is good magnetization, can makes the magnetized drinking water of high-quality.

Description of drawings

Fig. 1 is a structural representation of the present invention:

Fig. 2 is A-A position profile figure of the present invention;

1 heater charge bar, 2 spiral channels, 3 tubular insulators, 4 Isolated Shield layers, 5 inner insulating layers, 6 induction coils, 7 external insulation layers, 8 electromagnetic shielding decorative layers, 9 " O " RunddichtringO, 10 water inlets, 11 delivery ports among the figure.

The specific embodiment

As shown in the figure; At the water-heating device center heater charge bar 1 is set; Heater charge bar 1 has adopted the Ma Shi stainless steel material to make; With revolving the spiral channel 2 that mill-turn is produced equally dark about 2 millimeter of similar leading screw, the water channel outline is wideer, passes through in order to water with the stainless bar of Ma Shi.Heater charge bar 1 is packed in the tubular insulator 3 of being processed by high-temperature nylon material or other high-temperature engineering plastics compression molding; The internal diameter of tubular insulator 3 will more closely cooperate with heater charge bar 1 external diameter that is carved with spiral channel; Flow in order to water rotation in the spiral channel of insulator and heater composition, fully absorb the heat that heater produces.Tubulose twines many circles in insulator 3 outsides with litz wire (stranded the forming of enamel covered wire that multiply is thinner) processes into induction coil 6; Induction coil 6 can produce certain heat when work; Though the heat that induction coil 6 produces is less to the whole efficiency influence, induction coil 6 temperature are raise, the time, long meeting damaged coil; So tubular insulator 3 is also not beneficial too thick; Generally in 2 millimeter, the heat overwhelming majority of induction coil generation can be absorbed by water through conduction pattern by the water that flow in the tubular insulator 3 like this, induction coil 6 is worked long hours can not get into high temperature.Though in present design, considering induction coil 6 can directly not electrically contact in water and 1 generation of heater charge bar because of the existence of tubular insulator 3; But there is parasitic capacitance to exist between induction coil 6 and water and the heater charge bar 1; The area relative because of induction coil 6 and water and heater charge bar 1 is bigger; So the value of this parasitic capacitance is also bigger; So and for making the little induction coil 6 of electromagnetic induction heater volume will apply the high frequency alternating current; This high frequency alternating current can form higher Leakage Current to water through the parasitic capacitance between induction coil 6 and water and the heater charge bar 1, has influenced the security feature of electromagnetic induction heater, invent for this reason design twine between induction coil 6 and the tubular insulator 3 one deck Copper Foil as Isolated Shield layer 4 to eliminate the Leakage Current of parasitic capacitance between induction coil 6 and water and the heater charge bar 1; As long as this Isolated Shield layer 4 is connected on the constant current potential, this programme instance is connected on the ground wire.At the induction coil 6 inside and outside inner insulating layers 5 and external insulation layer 7 that all are provided with Gao Kangdian; Twine the electromagnetic shielding decorative layer 8 that one deck is processed by the Ma Shi stainless sheet steel at outermost layer; The thermal cut-out protector that meets the GB requirement is installed, to prevent damaging heater because of accident causes the heater dry combustion method on the electromagnetic shielding decorative layer.The heater two ends are provided with joint " O " RunddichtringO 9, and water inlet 10, delivery port 11 adopt the reducing crossover sub, constitute path with spiral channel 2.

Claims

1. electromagnetic induction-type quick water heating device; Mainly form by heater, water channel, induction coil, sealing ring, water inlet, delivery port; It is characterized in that at the water-heating device center heater charge bar being set, on the heater charge bar spiral channel is set, the heater charge bar places in the tubular insulator; The tubular insulator outside is provided with induction coil, between induction coil and tubular insulator, twines and one deck Copper Foil is set as the Isolated Shield layer; At inside and outside inner insulating layer and the external insulation layer that is provided with Gao Kangdian of induction coil, external insulation layer twines one deck electromagnetic shielding decorative layer outward.

2. electromagnetic induction-type quick water heating device according to claim 1; The internal diameter that it is characterized in that tubular insulator will more closely cooperate with the heater charge bar external diameter that is carved with spiral channel, and rotation is flowed in the spiral channel of water between tubular insulator and heater charge bar.

3. electromagnetic induction-type quick water heating device according to claim 1 is characterized in that the Isolated Shield layer is connected on the constant potential, to eliminate the Leakage Current of parasitic capacitance between induction coil and water and the heater.