CN201328200Y - Electromagnetic induction heater - Google Patents

Abstract

The utility model discloses an electromagnetic induction heater. A heating element is a cylinder with an annular seal cavity, and is provided with an outer tube and an inner tube. Both ends of the outer tube and the inner tube are respectively provided with annular end closures, and a framework is in the shape of a cylinder, and is enclosed in magnetic coils with an insulating layer. The magnetic coils are arranged in the annular seal cavity formed by the enclosure of the outer tube, the inner tube and the end closures at both ends through the framework. A set of tubular racks communicated with the annular seal cavity are fixed on the rear end closure, and the other ends of the racks are fixed on a flange seat. The end wires of the magnetic coils are electrically connected with the wiring terminals of the flange seat by the tubular lead-out racks. The magnetic coils are arranged in the annular seal cavity formed by the enclosure of the outer tube, the inner and the end closures at both ends, which are arranged in the heating element; therefore, a generator with magnetic leakage of the magnetic coil is eliminated. Thermal efficiency can reach more than 96%. The electromagnetic induction heater has the characteristics of high thermal efficiency, high heating-up speed, reliable operation and long service life. The electromagnetic induction heater is an electric heater product with novelty and specialty.

Description

Electromagnetic induction heater

Technical field

The utility model relates to a kind of heater, more particularly relates to a kind of electromagnetic induction heater, is applicable to the heating to liquid such as water.

Background technology

At present, the common electric heater in market is made of heating wire, metal tube and insulating barrier etc. usually, and heating wire is the heater of this electric heater.Heating wire is arranged in the metal tube, is connected with electrode at the heating wire two ends and draws rod, contacts electric leakage with metal tube for preventing heating wire, also magnesium oxide will be filled in the gap of heating wire and metal tube and form insulating barrier.Because the heater of this electric heater is a heating wire, the heat that energising back heating wire produces must be conducted to metal tube by the magnesium oxide insulating barrier and be made the metal tube heating, at last could be by metal tube to liquid heat such as water.Therefore, this electric heater heat efficiency is low, and heating wire is embedded in the magnesia powder insulating barrier in the metal tube, causes very easily that heating wire is overheated to be blown, cause this electric heater poor reliability, useful life to be lacked, brought inconvenience for the normal use of heater.

Summary of the invention

The purpose of this utility model provides a kind of electromagnetic induction heater, and it is heat efficiency height not only, and reliable operation, long service life, and is very easy to use.

The purpose of this utility model is achieved in that it includes solenoid, and heater is characterized in that described heater is the cylindrical body of band shape annular seal space, and heater has an outer tube and interior pipe, and the end socket of annular is arranged respectively at the two ends of outer tube and interior pipe; Skeleton is cylinder, and the solenoid that has insulating barrier is wound on the skeleton; Solenoid places in the annular seal space that is surrounded by outer tube, interior pipe and two ends end socket by skeleton; Also be fixed with a pack support of the tubulose that communicates with annular seal space on rear head, the other end of support is fixed on the flange seat, and the end lead of solenoid is drawn with binding post on the flange seat by the support of tubulose and is connected.

The utility model has the advantages that, because heater places the top layer of electromagnetic induction heater, therefore the heat of heater generation very easily outwards conducts and was difficult for cause thermal damage, place in the annular seal space that surrounds by the outer tube of heater, interior pipe and two ends end socket owing to solenoid again, eliminated the generation of solenoid leakage field phenomenon, the heat efficiency can reach more than 96%, have that heat efficiency height, programming rate are fast, the characteristics of reliable operation, long service life, be a kind of novelty and the electric heater product that shows unique characteristics.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model concrete structure cut-away section schematic diagram.

Fig. 2 is heater and coil rack profile construction schematic diagram.

Fig. 3 is the coil skeleton structure schematic diagram.

Embodiment

In Fig. 1-3, heater is the cylindrical body of band shape annular seal space, and heater is by two isometric outer tubes 1 and interior pipe 3, and front head 2 and rear head 9 compositions.The diameter 63mm of outer tube 1 makes with the magnetic conductive metal pipe, and the diameter 10mm of interior pipe 3 makes with the magnetic conductive metal pipe equally.Be welded with the front and back end socket 2,9 of the annular made from the magnetic conductive metal sheet punching press in the rear and front end of outer tube 1 and interior pipe 3, the upright edge that curves an angle of 90 degrees arranged in the outer edge of front and back end end socket 2,9.The plastic skeleton 7 that becomes with mold injects is cylindric, the center of circle of cylindric skeleton 7 be useful on heater in pipe 3 jacks 11 of pegging graft, also can there be spiral helicine wire casing 12 on the surface of skeleton 7.Be wound on the skeleton 7 or be wound in the wire casing 12 on the skeleton 7 with the solenoid 6 of glass wool cloth insulating barrier parcel.Solenoid 6 and skeleton 7 place in the annular seal space that is surrounded by outer tube 1, interior pipe 3 and front and back end socket 2,9, and solenoid 6 equates with the spacing of outer tube 1 and interior pipe 3.On rear head 9, be welded with the one group of tubular bracket 10 that communicates with annular seal space, support 10 is more than two or two, the other end of support 10 is weldingly fixed on the circular flange seat 4, the cannelure that the band sealing ring is arranged on flange seat 4, the two ends lead of solenoid 6 are drawn with binding post 5 on the flange seat 4 by standpipe 10 and are connected.

During work, electromagnetic induction heater is fixed by bolts on the water tank installing hole by the fixing hole on the flange seat 48, electromagnetic induction heater is placed in the water tank.After electric current passes through solenoid 6, around solenoid 6, form alternating magnetic field, make on urceolus 1, inner core 3, front head 2 and the rear head 9 of heater and produce eddy current, under eddy current effect, cause the heater temperature to raise fast, water in the thermal energy conduction feed-tank of heater makes the water temperature rising provide hot water for the user.The utility model can also be used for the heating of other industry to various liquid.

Claims (3)

1, a kind of electromagnetic induction heater, it includes solenoid, and heater is characterized in that described heater is the cylindrical body of band shape annular seal space, and heater has an outer tube and interior pipe, and the end socket of annular is arranged respectively at the two ends of outer tube and interior pipe; Skeleton is cylinder, and the solenoid that has insulating barrier is wound on the skeleton; Solenoid places in the annular seal space that is surrounded by outer tube, interior pipe and two ends end socket by skeleton; Also be fixed with a pack support of the tubulose that communicates with annular seal space on rear head, the other end of support is fixed on the flange seat, and the end lead of solenoid is drawn with binding post on the flange seat by the support of tubulose and is connected.

2, electromagnetic induction heater according to claim 1 is characterized in that described skeleton has spiral helicine wire casing.

3, electromagnetic induction heater according to claim 1 is characterized in that described tubular bracket is two or more.

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