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Heating wire heater in use for defrost

A heating wire and heater technology, applied in the direction of the heating element shape and other directions, can solve the problems of ozone layer destruction and low ignition point, and achieve the effect of preventing the heating wire from being exposed and being safe to use.

Inactive Publication Date: 2004-10-27
邹美琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because it can destroy the ozone layer, bring defects such as the influence of greenhouse effect to the earth, for this reason in the prior art, developed a kind of fluorine-free type refrigerator that uses hydrocarbon (isobutylene) as refrigerant again, and is widely popularized
However, isobutylene has a low ignition point and is a flammable gas

Method used

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  • Heating wire heater in use for defrost
  • Heating wire heater in use for defrost
  • Heating wire heater in use for defrost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] As shown in Figure 1: Straight tube electric heating wire heater. The glass tube 1 is coaxially equipped with an inner tube 1a with a smaller diameter and an outer tube 1b with a larger diameter that is open at both ends. The ends of the two tubes 1a, 1b are respectively connected with elastic synthetic resin cap members 2 to form a double structure, and an air layer 6 is formed between the inner tube 1a and the outer tube 1b. A helical heating wire 3 is installed inside the inner tube 1a, and both ends of the inner tube are sealed. Lead wires 3a are drawn out from the sealed portions. These two lead portions 3a are led to the outside through the through-hole 4 formed in the cap member 2, and are fixed by the packing 5 inside the cap.

[0013] Such as figure 2 , image 3 As shown, the cap member 2 has an inner tube insertion hole 2a coaxially connected with the through hole 4 and an annular outer tube insertion groove 2b. Push the end of the inner tube 1a into the ...

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PUM

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Abstract

Heater includes a spiral heating wire setup inside tube. The said tube is composed of coaxial inner tube and outer tube connected to each other through tube cap component at end parts of the inner tube and outer tube. Heating wire is installed inside inner tube. An air layer is formed between inner tube and outer tube. Through hole for conducting wire of heating wire is setup at tube cap component. Dual structure of glass tube forms air layer to obstruct quantity of heat. Advantages are that lower temperature is maintained on circumferential face, and inner tube is not easy to be damaged so as to avoid exposing heating wire.

Description

technical field [0001] The invention relates to an electric heating wire heater for defrosting. The utility model relates to a heat source device for defrosting coolers such as refrigerators and refrigerators. Background technique [0002] Electric wire heaters have been used for a long time as a heat source for defrosting in coolers. This electric heating wire heater adopts a helical electric heating wire structure in a sealed glass tube. Freon gas has been used as a refrigerant in coolers for a long time. But because it can destroy the ozone layer, bring defects such as the influence of greenhouse effect to the earth, for this reason in the prior art, developed a kind of fluorine-free type refrigerator that uses hydrocarbon (isobutylene) as refrigerant again, and is widely popularized . However, isobutylene has a low ignition point and is a flammable gas. If the refrigerant leaks, the heater can become a source of ignition. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/44
Inventor 邹美琴
Owner 邹美琴