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carbon heating element

A carbon heating element and heating element technology, applied in the direction of electric heating device, ohmic resistance heating, heating element shape, etc., can solve the problems of blocking radiated light and reducing the radiation efficiency of the oven, so as to increase the life, improve the degree of freedom, and prevent insulation effect of destruction or sparks

Active Publication Date: 2022-06-14
LG ELECTRONICS INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] However, the shielding member not only shields the plasma light, but also blocks a part of the radiation light emitted from the carbon heater, so there is a problem that the radiation efficiency of the oven is greatly reduced.

Method used

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Embodiment

[0141] A four-component system (Quaternary) composition was prepared, which was 50 wt. % to 75 wt. % (hereinafter, referred to as % or wt. %) of silicon carbide in the inorganic powder components of Table 1 above. (SiC), additionally containing 24 wt. % or less of silicon oxide (SiO 2 ) as a resistivity modifier, in such an inorganic powder, 15 wt.% to 30 wt.% of novolak resin is contained as a binder, and 0.1 to 10 wt.% of graphite is contained as a lubricant. The number average molecular weight of the novolak resin used in the examples of the present invention is preferably in the range of 1,000 to 10,000, and more preferably in the range of 3,000 to 7,000.

[0142] According to as Figure 4 In the method shown, the prepared four-component system composition is firstly mixed uniformly through the raw material mixing step, and then extruded, and then, after the stabilization heat treatment process and the first carbonization heat treatment process to the third carbonization ...

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Abstract

The present invention relates to a carbon heating element, which does not generate sparks and plasma under high pressure, and realizes the effective dispersion of heat, thereby preventing the disconnection and damage of the heating element, thereby increasing the service life. The carbon heating element contains carbon and silicon Carbide (SiC), and thermal conductivity of 1.6W / m·K or more.

Description

technical field [0001] The present invention relates to a carbon heating element used as a heating source of a carbon heater in the field of cooking equipment such as an oven. Background technique [0002] Recently, an oven (Oven) utilizing a heater is widely used as a home or commercial cooking apparatus. [0003] figure 1 It is a perspective view showing the general structure of an oven. [0004] refer to figure 1 , the oven 1 comprises: a cavity 2, which houses the food to be cooked; a door 3, which is used to open the cavity 2; and, a plurality of heaters 6, which heat the cavity 2. [0005] In particular, more than one heater is provided in the heater 6, and the heater 6 is protected by the cover 8 from being influenced by the outside of the cavity. [0006] In addition, in order to adopt the electromagnetic wave heating method in the oven 1, the magnetron 4 is provided outside the upper surface of the cavity 2. As shown in FIG. The electromagnetic wave generated i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/14
CPCH05B3/145H05B3/148H05B3/0076H05B3/141H05B2203/032H05B2203/017H05B3/44H05B3/14H05B3/03
Inventor 李荣峻梁甲承金相完
Owner LG ELECTRONICS INC