CN216448218U

CN216448218U - Stove backfire protection device

Info

Publication number: CN216448218U
Application number: CN202122791390.7U
Authority: CN
Inventors: 张军; 代高富; 张晓菁; 温霞; 蒲珊珊; 陈利; 张卿
Original assignee: Neijiang Vocational and Technical College
Current assignee: Neijiang Vocational and Technical College
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-06
Anticipated expiration: 2031-11-15

Abstract

The utility model provides a stove backfire protection device, which relates to the technical field of stoves, and is characterized in that a set of backfire controller is arranged in a stove, a photosensitive sensor is arranged on the backfire controller and can control the on-off of a stove flameout induction signal according to the existence of a non-luminous signal, the photosensitive sensor is arranged outside an air door of the stove, if the stove generates a 'backfire' phenomenon, when the photosensitive sensor detects that the air door has the flame, the luminous signal is transmitted to the backfire controller, the backfire controller cuts off the stove flameout induction signal, the stove enters a flameout protection state, an air passage is cut off rapidly, an alarm is given, and the 'backfire' protection is realized.

Description

Stove backfire protection device

Technical Field

The utility model relates to the technical field of cookers, in particular to a cooker tempering protection device.

Background

The working principle of the existing gas cooker on the market is that gas is controlled by a switch valve body, enters an ejector to mix air, is guided to a distributor to be dispersed, the dispersed gas is ignited by an ignition device and then burns, and heat generated by the combustion of the gas is transferred to the bottom of a pot to achieve the purpose of cooking food; the gas cooking utensils are equipped with the air door for adapting to the abundant burning under the different gas atmospheric pressures at ejector and furnace end junction, and the adjustment air door just can change how much that the air got into the hybrid chamber to change the mixing ratio of gas and air, realize better burning. However, when the user uses the gas stove, due to improper adjustment or other reasons, part of the gas often overflows from the air door, and the overflowed gas burns at the air door to form 'backfire', which causes the panel to be burned out and seriously causes fire.

In order to solve the problem, the modern technology usually adopts a fire blocking mode to avoid the panel from being burnt out, an iron sheet block is arranged between the air door and the panel, and the panel cannot be burnt out when 'tempering' is burnt on the iron sheet.

Disclosure of Invention

In order to overcome the problems, the utility model provides a cooker backfire protection device, which aims to solve the problems in the prior art brought by the background technology.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the stove comprises a stove head and an ejector, wherein an induction needle is arranged on the stove head, an induction needle lead is arranged on the induction needle, and the induction needle lead is connected with a controller of the stove; the burner is provided with an ejector pipe, the head end of the ejector pipe is communicated with the mixing cavity of the burner, the tail end of the ejector pipe is provided with an air inlet hole and an air hole, the air inlet hole is communicated with the ejector, the ejector is provided with an air door, and the size of the air hole can be adjusted by the air door, so that the amount of air entering the mixing cavity is controlled; the induction needle is characterized in that a photosensitive sensor is arranged outside the ejector and can detect whether fire exists at the air door or not, the photosensitive sensor is electrically connected to a tempering controller, and the tempering controller can control the on-off of the induction needle lead.

Further, the tempering controller is connected with a power supply, and the power supply is either an independent power supply or a controller output power supply of the cooker.

Furthermore, the photosensitive sensor is arranged at the position 5CM outside the air door, and a photosensitive head of the photosensitive sensor is not shielded with the air door.

The utility model has the beneficial effects that:

the cooker backfire protection device is characterized in that a set of backfire controller is installed in a cooker, a photosensitive sensor is installed on the backfire controller and can control the on-off of a flameout sensing signal of the cooker according to the existence of a non-light signal, the photosensitive sensor is installed outside an air door of the cooker, if the cooker generates a 'backfire' phenomenon, when the photosensitive sensor detects that the air door has fire, the light signal is transmitted to the backfire controller, the backfire controller cuts off the flameout sensing signal of the cooker, the cooker enters a flameout protection state, a gas circuit is cut off rapidly, an alarm is given, and 'backfire' protection is achieved.

Drawings

FIG. 1 is a schematic structural view of a cooking range backfire protection device.

FIG. 2 is a circuit block diagram of a cooking utensil backfire protection device.

In the figure: the device comprises a furnace head 1, an ejector 2, a photosensitive sensor 3, a sensing needle 4, a tempering controller 5, an ejector pipe 11, an air door 21 and a sensing needle 41.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is to be understood that the described embodiments are only a few, and not all, embodiments of the present invention; while the components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations, the detailed description of the embodiments of the present invention provided in the figures is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples are given.

Referring to fig. 1 and 2, a stove tempering protection device comprises a stove head (1) and an ejector (2), wherein an induction needle (4) is installed on the stove head (1), an induction needle lead (41) is arranged on the induction needle (4), and the induction needle lead (41) is connected with a controller of the stove; the burner (1) is provided with an injection pipe (11), the head end of the injection pipe (11) is communicated with the mixing cavity of the burner (1), the tail end of the injection pipe is provided with an air inlet hole and an air hole, the air inlet hole is communicated with the ejector (2), the ejector (2) is provided with an air door (21), and the air door (21) can adjust the size of the air hole so as to control the amount of air entering the mixing cavity; a photosensitive sensor (3) is arranged outside the ejector (2), the photosensitive sensor (3) can detect whether fire exists at the air door (21), the photosensitive sensor (3) is electrically connected to a tempering controller (5), and the tempering controller (5) can control the on-off of the induction needle lead (41).

In the embodiment, the tempering controller (5) is connected with a power supply, and the power supply is either an independent power supply or a controller output power supply of the cooker.

In the embodiment, the photosensitive sensor (3) is arranged at the position 5CM outside the air door (21), and a photosensitive head of the photosensitive sensor is not shielded from the air door (21); if the 'tempering' phenomenon occurs, when the photosensitive sensor (3) detects that the air door (21) has fire light, a light signal is transmitted to the tempering controller (5), the tempering controller (5) cuts off the induction needle lead (41), the cooker does not detect a quenching and protecting signal, enters a quenching and protecting state, cuts off a gas circuit, gives an alarm, and realizes 'tempering' protection.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooking utensils protection device that backfires which characterized in that: the stove comprises a stove head (1) and an ejector (2), wherein an induction needle (4) is arranged on the stove head (1), an induction needle lead (41) is arranged on the induction needle (4), and the induction needle lead (41) is connected with a controller of the stove; the burner (1) is provided with an injection pipe (11), the head end of the injection pipe (11) is communicated with the mixing cavity of the burner (1), the tail end of the injection pipe is provided with an air inlet hole and an air hole, the air inlet hole is communicated with the ejector (2), the ejector (2) is provided with an air door (21), and the air door (21) can adjust the size of the air hole so as to control the amount of air entering the mixing cavity; a photosensitive sensor (3) is arranged outside the ejector (2), the photosensitive sensor (3) can detect whether fire exists at the air door (21), the photosensitive sensor (3) is electrically connected to a tempering controller (5), and the tempering controller (5) can control the on-off of the induction needle lead (41).

2. The cooking appliance backfire protection device according to claim 1, wherein the backfire controller (5) is connected with a power supply, the power supply is either an independent power supply or an output power supply for the controller of the cooking appliance.

3. The cooking range backfire protection device according to claim 1, wherein said light sensor (3) is installed at 5CM outside said air door (21) with no shielding between its light sensing head and said air door (21).