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Electrothermal ring

An electric heating coil and electric heating wire technology, applied in the direction of the shape of the heating element, can solve the problems of cumbersome production process, assembly process, inconvenient installation and use, unreliable performance, etc., and achieves simple structure, prolonged service life, and enhanced thermal insulation. effect of effect

Inactive Publication Date: 2008-11-19
SHINI ELECTRIC HEATING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the technical problems existing in the prior art, such as unreliable performance, short service life, complex structure, cumbersome production process and assembly process, high production cost, and inconvenient installation and use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Embodiment: an electric heating coil, the structure of which includes an outer ring 1 and an inner ring 2 that play a supporting and fixing role, and a heating coil 3 and a heat insulation layer 4 are arranged between the two.

[0019] Among them, the outer ring 1 and the inner ring 2 are made of stainless steel by one-step stamping, and are in a "C" shape. The opening is provided with a fastening handle 11, and the side opposite to the opening is provided with an electrical connection on the outer ring 1. 12; Both rings are provided with side edges, the thickness of the side edge is equal to the thickness of the bottom edge, the side edge of the inner ring 2 is slightly smaller than the side edge of the outer ring 1, and the two are fastened together. See Figures 1, 2 and 3.

[0020] The heating coil 3 is composed of a plurality of ceramic skeletons 32 which are formed by a spring-like electric heating wire 31 threaded through. The ceramic skeleton is made of light-we...

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Abstract

The invention discloses a band heater. It includes outer ring and inner ring and heating winding which is set between them, the heating winding is composed by heating wires which are cross through many chinaware framework, the heating wires are spring style, and be pull through the holes of the chinaware framework, the isolating groove is set on the chinaware framework, which is almost upright to the holes. Selecting the chinaware material which is light, and has good heating enduring and isolating characters, size of the framework can be designed according to requirement. There is an isolating heat layer between the outer ring and the heating wares. The invention has better heat enduring and isolating character, long using period, simple producing technics, low producing cost, highperformance and saving energy. It can be widely used to all kinds of pipe heating requirement in industry and civil field, it is an ideal electronic heating device.

Description

technical field [0001] The present invention relates to an electric heating coil, in particular to an improvement to the heating coil of the electric heating coil and its related structure. Background technique [0002] The electric heating ring is mainly used as a heating device in industrial production, such as the application on the injection molding machine. An existing electric heating coil product is that a heating wire is wound on a sheet-shaped heat-resistant insulating skeleton, and the two sides of the sheet-shaped skeleton are covered with a heat-resistant insulating layer, and then coiled together with a metal shell into a "C" shape structure, that is, The electric heating ring is formed and then bolted to the tubular part to be heated. Such a structure has unreliable insulation performance and high temperature resistance performance, especially when it is locked by bolts, the destructive force and tensile stress at the turning point of the heating wire, especia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/42
Inventor 吴文忠
Owner SHINI ELECTRIC HEATING MACHINERY
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