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Microwave oven grate heater apparatus

A technology for heaters and microwave ovens, applied in the field of microwave ovens, can solve problems such as damage to heaters, achieve the effects of preventing damage, reducing production costs, and improving production efficiency

Inactive Publication Date: 2007-10-17
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, the defect in the prior art is that the heater 30 is exposed inside the oven 2, so when microwaves are used for cooking, the microwaves irradiated inside the oven will concentrate on the hot line of the heater and damage the heater.
This phenomenon is especially serious when using micro heaters or quartz heaters

Method used

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  • Microwave oven grate heater apparatus
  • Microwave oven grate heater apparatus
  • Microwave oven grate heater apparatus

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Experimental program
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Embodiment Construction

[0033] Hereinafter, embodiments of the microwave oven grate heater of the present invention will be described in detail with reference to the accompanying drawings.

[0034] In this embodiment, the heater 100 is disposed inside the heater cover 200 of the cavity ceiling 200 . The heater cover 202 of the built-in heater 100 is integrated with the top plate 200 when forming the cavity. The heater cover 202 is a hexahedron with long left and right sides and a small cross-sectional area, and protrudes from the upper side of the top plate 200, and its lower end forms an opening structure for communicating with the oven inside the cavity.

[0035] In this embodiment, the width L1 of the heater cover 202 is equal to 1 / 2 of the wavelength λ of the microwave irradiated to the inside of the oven. Also, the distance from both side wall surfaces of the heater cover 202 to the center line of the heater 100 is 1 / 4 of the microwave wavelength λ, so that the heater 100 is located at the cent...

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Abstract

The present invention discloses a grid heater device of microwave oven. It includes heater cover whose mouth is opened to the roaster formed in the interior of microwave oven cavity and which is fixed on the top plate of cavity body and grid heater which is placed in the interior of heater cover and exposed to the interior of roaster for heating food, in which the width of heater cover is integral times of 1 / 2 wavelength (lambda) of microwave irradiated into the interior of roaster, and the grid heater centre is positioned on the position of integral times of 1 / 4 wavelength of mcirowave in the width direction of heater cover. Said invention can simpifying mounting operation of heater, can reduce production cost and raise production efficiency.

Description

technical field [0001] The present invention relates to microwave ovens, and more particularly to a microwave oven grate heater assembly that prevents microwaves from being concentrated on the heater's hot wire. Background technique [0002] A microwave oven is a device that generates microwaves from an electric current and irradiates them onto food to heat the food. Conventional microwave ovens only use microwaves to be supplied to the oven and irradiated onto the food to heat the food. Since this method has only a single heating characteristic, recently produced microwave ovens have a built-in heater and use it as another heating source. [0003] The heater used as an auxiliary heating source includes a convection heater that uses the convection of the air to send the heat generated by the heater to the oven to heat food, and a grill heater that irradiates the heat generated by the heater onto the food to heat the food. . [0004] A conventional microwave oven heater mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C7/02F24C7/04
Inventor 金圭英
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD