Ignition and flame-out protective device used on infrared ray stove

Abstract

The invention provides an ignition and flame-out protective device used on an infrared ray stove. The device is arranged on an air outlet port on the inner side wall of a central ventilation channel of a burner and comprises a high-temperature resistant insulation sleeve, an electric conduction needle and an electrode piece, wherein the high-temperature resistant insulation sleeve is arranged inside the central ventilation channel; the electric conduction needle is positioned inside the high-temperature resistant insulation sleeve; the lower end of the electric conduction needle penetrates through the high-temperature insulation sleeve to connect with an electronic control system inside the stove; and the electrode piece is arranged on the upper end of the electric conduction needle through a electric conduction connector. By adopting the scheme, when the stove is ignited, backflow is formed after a gas flow is obstructed by the electrode piece, and a pulse electric spark released by a discharge electrode ring ignites the gas in a backflow zone quickly, and meanwhile, the ignition rate of the stove is greatly improved through multi-point electro-discharging. The electrode piece ensures that the central ventilation channel can not be exposed, greatly improves aesthetic properties of the stove, solves ignition insecurity under the infrared ray stove, and greatly enhances the popularization extent of the infrared ray stove.

Description

Technical field: [0001] The invention relates to the technical field of gas cookers, in particular to a pulse discharge ignition and flameout protection device for infrared cookers. Background technique: [0002] Infrared cookers have been favored by some consumers for many years due to their advantages such as high thermal efficiency, no smoke, and low CO content in the flue gas during combustion. Accepted by big brands. The main reason is that the appearance is unattractive, which does not meet the simple, beautiful and overall requirements of modern kitchens. Especially since the state mandated the installation of automatic flameout protection devices in 2007, embedded cookers cannot solve the problem of exposure of ignition pins and flameout protection devices. Always give people the feeling of low-end products, the main defects are as follows: [0003] First: most of the existing infrared stoves use lower ignition devices. Infrared rays burn without flames and do not ...

AI Technical Summary

Problems solved by technology

[0004] Second: During use, when the negative pressure in the central ventilation channel is too large, the ignition flame will overflow and spread out of the ignition channel, causing the lead wire to be burned, and it is easy to cause the flame to burn in the bottom shell of the cooker. Combustion in the bottom shell may cause the entire stove to burn down and cause a major safety accident

[0005] Third: Existing infrared cookers are generally equipped with a thermocouple induction head or an ion detection needle on the outer edge or a certain part of the center of the burner. The double or single needles are exposed at the core of the cooker, which seriously affects the appearance of the cooker. and the effect of using

[0006] Fourth: The cost of the lower ignition device is relatively high, installation and maintenance are inconvenient, and when the liquid food overflowing during the cooking process blocks the fire hole through the fire channel, the entire cooker cannot be used normally

However, the central fire-blocking cap only solves the fire-blocking function when the flame of the lower ignition mode is sprayed upward from the central fire-pipe channel, and has not yet completely solved the long-term existence of exposed double needles in the infrared cooker, and the partial localization of the lower part due to the ignition of the open flame. Smoked pot phenomenon, unable to realize infrared cooker for upper pulse discharge ignition and flameout protection

Images