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Heating element, a method for the production thereof, an article provided with said element and a method for the production thereof

A heating element and resin technology, applied in heating element materials, electrical elements, ohmic resistance heating, etc., can solve the problems of unsatisfactory dielectric properties of heating elements, and achieve the effect of saving space

Inactive Publication Date: 2007-05-30
SEB SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it was observed that the dielectric properties of the heating elements obtained in this way were not at all satisfactory, since the fusion agent would make the enamel conductive

Method used

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  • Heating element, a method for the production thereof, an article provided with said element and a method for the production thereof

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Embodiment Construction

[0040] In Fig. 1, a substrate 1 made of aluminum or an aluminum alloy has been shown. It may also be desirable for the substrate 1 to consist of a metal plate, for example made of steel or stainless steel, said plate being coated with aluminium.

[0041] Usually the substrate 1 is disc-shaped, but of course any other shape is possible.

[0042] The face 1a of the substrate 1 is coated with at least one continuous dielectric layer 2, consisting of a resin and a dielectric filler.

[0043] The dielectric layer 2 is coated with a resistive layer 3 consisting of resin and conductive filler.

[0044] The resistive layer 3 is preferably in the form of tracks, the dimensions of which, eg length and thickness, can be tailored quite obviously to the desired resistance.

[0045] The tracks forming the resistive layer 3 can be helical, for example, wherein only the cross-sections of the individual helical structures are shown in FIGS. 1 and 2 .

[0046] At least one conductive layer 4...

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Abstract

The invention relates to a heating element (6) placeable on a metallic substrate and comprising, starting away from said substrate, at least one dielectric layer containing resin and dielectric charges, at least one resistive layer (3) containing resin and electrically conductive charges, at least one conductive layer (4) containing resin and electrically conductive charges and at least one final protective layer (5) containing resin and dielectric charges, wherein each dielectric (2), resistive (3), conductive (4) and final protective layer contains the same type of resin. A method for producing the inventive heating element (6), an article provided with said heating element (6) and a method for the production thereof are also disclosed.

Description

technical field [0001] The invention relates to a heating element for placement on a metal substrate, for example made of aluminum or an aluminum alloy, and a method for its manufacture. [0002] The invention also relates to an appliance having such a heating element and to a method of manufacturing the appliance. [0003] In particular, it may be desirable to use such a heating element according to the invention for the manufacture of cooking utensils or kitchen utensils, iron base plates, fondue pot bases and the like. Background technique [0004] In general, the heating elements of the present invention must be capable of delivering high output with an output / surface area ratio of at least 1 W / cm 2 and can be as high as about 40W / cm 2 value. This type of heating element must be able to distribute heat evenly over the entire surface and do so regardless of output, if desired. [0005] In the high output field, so-called "thick film" heating elements are known, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/26H05B3/10
CPCH05B3/262
Inventor ๆ–ฏ็‰นๅ‡กยทๅ‹’ไผฏๅคซๆ‹‰ๅŸƒ่’‚่’‚ไบšยท็šฎ็›–
Owner SEB SA