CN217137480U

CN217137480U - Safety control system of gas rice cooker

Info

Publication number: CN217137480U
Application number: CN202122458376.5U
Authority: CN
Inventors: 夏成平; 周江
Original assignee: Wuhu Taihe Pipe Industry Co ltd
Current assignee: Wuhu Taihe Pipe Industry Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-08-09
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses a gas rice cooker safety control system belongs to gas rice cooker field. The utility model discloses a machinery master switch, the stop valve, magnet steel temperature detect switch, the switch of striking sparks, and set up in the needle and the thermocouple of striking sparks of furnace end position, still include with thermocouple electric signal connection's circuit board, the circuit board is used for receiving the signal of striking sparks that the thermocouple detected, and the gas control valve electric signal connection on this circuit board and the outside gas supply pipeline of gas rice cooker, the circuit board sends the signal processing of striking sparks of receiving for the gas control valve, the gas control valve judges whether there is the gas to leak according to the signal of striking sparks and the gas circulation state that detects on the gas supply pipeline. The utility model discloses still have the current situation that promotes the space to the applied security performance of present gas rice cooker, plan to provide a gas rice cooker safety control system, the gas leakage condition when can in time detecting gas rice cooker and use improves and uses the security.

Description

Safety control system of gas rice cooker

Technical Field

The utility model relates to a gas rice cooker technical field, more specifically say, relate to a gas rice cooker safety control system.

Background

At present, the household food cooking adopts either electric energy or natural gas or coal gas energy, an electric cooker or an electric frying pan generally consumes time for a long time, the investment is large, the cost is high, and particularly the electric cooker is limited by wire heating or capacitance and the like, so that the high power is difficult to achieve. Therefore, the gas cooker is produced, the known gas cooker comprises a mechanical main switch, a cooker cover, a cooker liner, a shell, a magnetic steel temperature control switch, a fire striking needle, a thermocouple and the like, but the application of the gas cooker is not common at home at present, and the application safety of the gas cooker is always a key concern in the industry.

Although the application of the gas cooker in the market is relatively limited, the technical research on the gas cooker is quite long and mature, for example, the application number 200420061264X discloses a gas energy-saving cooker which comprises a gas device and a cooker, wherein a heat-insulating shell outside the cooker is hermetically connected with a gas outer shell, a gas transmission control system and a cooking control mechanism are arranged below the gas device, a heating plate in the gas device is adjacent to the bottom of the cooker, a burner is arranged at the lower part of the heating plate, the gas transmission control system is formed by connecting an electronic ignition gas inlet switch, an electronic automatic ignition needle, an air inlet valve and an air pipe, and the cooking control mechanism is formed by connecting a cooking button, a connecting lever and an automatic magnet valve. Also, as disclosed in application No. 022002367, a gas rice cooker comprises a cooker body, a gas regulating switch valve, a gas burner and an electronic igniter, wherein the cooker body comprises a cooker shell, a cooker pot, a cooker cover and a cooker bottom; the inner surface of the cooker bottom is provided with a gas regulating switch valve and a gas burner, the middle part of the gas burner is provided with a heat transfer sleeve which is supported by a spring and can vertically stretch, and the lower bottom of the heat transfer sleeve is connected with the gas regulating switch valve. The above application provides a sufficient explanation of the basic structure and application of the gas cooker.

The application as the application number 952229625 discloses a full-automatic gas rice cooker of domestic electron, by burning furnace end, lever, contact switch, automatic solenoid valve electron automatic ignition needle, automatic sensitive probe, full-automatic electronic controller, magnet steel temperature limiter, ventilation aluminum pipe, a kind of deep pot body part is constituteed, and its characteristics are equipped with an automatic sensitive probe, can be in the burning way, when unexpected flame-out, can close gas automatically. As another example, application No. 2006201551981 discloses a gas pressure rice cooker, which comprises a housing, an inner container, a pressure-maintaining cover, a burner, a DC power supply, a temperature control sensor arranged at the bottom of the inner container, an ignition sensing needle, an electronic controller, a solenoid valve, a microswitch, a valve core, a valve body and a knob, wherein two ends of the microswitch are respectively electrically connected with the DC power supply and the electronic controller, the other end of the electronic controller is electrically connected with the DC power supply, the electronic controller is electrically connected with the ignition sensing needle, the electronic controller is electrically connected with the solenoid valve, the solenoid valve is connected with the valve body through the valve core, the valve body is connected with the burner through a nozzle of the valve body, the knob penetrates through the housing and is inserted on a valve core adjusting rod, the temperature control sensor is electrically connected with the electronic controller, when the temperature of the inner container is detected to reach the set temperature, the temperature control sensor transmits a signal to the electronic controller to drive the electromagnetic valve to act. The application further explores the intelligent adjustment and safety protection technology of the gas cooker.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to provide a gas rice cooker safety control system still has the current situation that promotes the space to the applied security performance of present gas rice cooker, can in time detect the gas leakage condition when gas rice cooker uses, improves and uses the security.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a gas rice cooker safety control system, including mechanical master switch, the stop valve, magnet steel temperature detect switch, the switch of striking sparks, and set up in the needle and the thermocouple of striking sparks of furnace end position, still include the circuit board with thermocouple signal connection, the circuit board is used for receiving the signal of striking sparks that the thermocouple detected, and the gas control valve signal of firing on this circuit board and the outside gas supply pipeline of gas rice cooker electric signal connection, the circuit board sends the signal of striking sparks of receiving for firing the gas control valve, it judges whether there is the gas to leak to fire the gas control valve according to the signal of striking sparks and gas circulation state on detecting the gas supply pipeline.

Furthermore, the electric heating cooker also comprises a miniature electromagnetic valve which is arranged on a gas channel in the gas cooker and used for flameout protection, the miniature electromagnetic valve is electrically connected with the thermocouple, and after the ignition is successful, the thermocouple generates electromotive force to the miniature electromagnetic valve and enables the miniature electromagnetic valve to keep a suction opening state.

Furthermore, the gas cooker also comprises an adjusting valve arranged on a gas channel inside the gas cooker and used for adjusting the size of the gas.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a gas rice cooker safety control system, carry out signal transmission's circuit board at gas rice cooker inside cooperation setting and thermocouple, the circuit board detects the signal of striking sparks that the processing thermocouple transmitted, whether detect and be in with the gas state, and can feed back this ignition signal to the gas control valve on the outside gas supply pipeline, this gas control valve fit in installs the flow sensor who is used for detecting the interior gas flow of pipeline, if detect the gas supply pipeline in the non-gas period and appear the gas flow, then directly judge the pipeline and leak, automatically, close the gas control valve, prevent further leakage, improve the security that gas rice cooker used.

(2) The utility model discloses a gas rice cooker safety control system is provided with flame-out protection, leads to the furnace end fire to extinguish when meeting accident, starts flame-out protection this moment, and the thermocouple responds to the high temperature that can not arrive the fire promptly, and miniature solenoid valve loses the electricity and resets, cuts off the gas pipeline, guarantees that the gas is safe in utilization.

Drawings

Fig. 1 is a schematic diagram of the safety control system of the gas cooker of the present invention.

The reference numerals in the schematic drawings illustrate:

1. a mechanical master switch; 2. a stop valve; 3. a magnetic steel temperature control switch; 4. a miniature electromagnetic valve; 5. a thermocouple; 6. a sparking switch; 7. a power source; 8. firing needles; 9. a furnace end; 10. adjusting a valve; 11. a circuit board; 12. a gas control valve.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

As shown in fig. 1, the safety control system of a gas cooker of this embodiment includes a mechanical master switch 1, a stop valve 2, a magnetic steel temperature control switch 3, a striking switch 6, a striking needle 8 and a thermocouple 5, which are disposed at a position of a furnace end 9, and a circuit board 11 electrically connected to the thermocouple 5, where the circuit board 11 is configured to receive a striking signal detected by the thermocouple 5, and the circuit board 11 is electrically connected to a gas control valve 12 on a gas supply pipeline outside the gas cooker, the circuit board 11 processes and sends the received striking signal to the gas control valve 12, and the gas control valve 12 determines whether there is gas leakage according to the striking signal and a gas circulation state on the gas supply pipeline.

More specifically, the present embodiment further includes a micro electromagnetic valve 4 disposed on a gas channel inside the gas cooker and used for flameout protection, the micro electromagnetic valve 4 is electrically connected to the thermocouple 5, and after the ignition is successful, the thermocouple 5 generates an electromotive force to the micro electromagnetic valve 4 and keeps the micro electromagnetic valve 4 in an open state. And the gas channel in the gas cooker is also provided with an adjusting valve 10 for adjusting the size of the gas so as to adjust the size of the fire of the gas cooker.

The mechanical master switch 1 in the embodiment is a master control switch, and is similar to a cooking switch of a press type electric cooker, the stop valve 2 is a vent valve in a gas cooker and is connected with the mechanical master switch 1 through a sheet metal structure, and when the mechanical master switch 1 is pressed, the stop valve 2 is pushed open through the sheet metal structure; magnet steel temperature detect switch 3 is the mechanical switch through the temperature in order to control the gas break-make, link to each other with mechanical master switch 1 through the sheet metal construction equally, when pressing mechanical master switch 1, can be through the past panel beating of mechanical master switch 1 with magnet steel temperature detect switch 3 up actuation, the magnet steel actuation back, the hand can be loosened, mechanical master switch 1 can be because the actuation of magnet steel is dragged, keep pressing the state, stop valve 2 also keeps the open mode because of pressing of mechanical master switch 1 simultaneously. Similarly, when the rice is cooked, the magnetic steel is weakened due to the temperature rise, the magnetic steel temperature control switch 3 is reset through the spring, and the mechanical main switch 1 and the stop valve 2 are also reset.

The micro electromagnetic valve 4 of the embodiment is an electromagnetic stop valve for controlling the on-off of gas in the cooker body, is similar to the stop valve 2, but has slightly different control modes, and the micro electromagnetic valve 4 and the stop valve 2 are both arranged on a gas channel in the cooker body to control the on-off of gas; when the mechanical master switch 1 is pressed down, the rear metal plate enables the micro electromagnetic valve 4 to be temporarily opened through pressing, if the gas cooker is not ignited, the mechanical master switch 1 is loosened by a hand, the micro electromagnetic valve 4 can be reset and closed through a spring, the gas in the cooker body is disconnected, and flameout safety protection is realized. When the mechanical master switch 1 is pressed, the ignition switch 6 is triggered to be closed for ignition, the thermocouple 5 is a component generating electromotive force through temperature induction, once the ignition of the gas rice cooker is successful, the thermocouple 5 generates electromotive force to electrify the miniature electromagnetic valve 4, so that the miniature electromagnetic valve 4 keeps an electrified open state, even if the mechanical master switch 1 is loosened, the miniature electromagnetic valve 4 also keeps an open state, meanwhile, the thermocouple 5 senses the temperature, namely, the ignition successfully generates electromotive force, and the temperature is transmitted to the circuit board 11 installed in the cooker body through a wire. In this embodiment, the power supply 7 supplies power to the ignition and the circuit board 11, and a 1.5v battery may be used. The circuit board 11 processes the received ignition signal transmitted from the thermocouple 5 and transmits the processed ignition signal to a gas control valve 12 installed on an external gas supply pipeline for supplying gas to the gas cooker, and the gas control valve 12 receives the ignition signal and then performs judgment processing.

It should be noted that, in the present embodiment, the specific structural configuration of the gas cooker includes that the setting and the cooperation relationship of the mechanical master switch 1, the stop valve 2, the magnetic steel temperature control switch 3, the micro solenoid valve 4, the thermocouple 5, the ignition switch 6, the power supply 7, the ignition needle 8, the burner 9 and the regulating valve 10 which correspond to the inside all belong to the conventional structural configuration of the current gas cooker, and also do not belong to the innovative design of the present embodiment, and are not described in detail herein; this application is originally ground at gas rice cooker inside cooperation setting and is carried out signal transmission's circuit board 11 with thermocouple 5, circuit board 11 can detect the ignition signal that handles thermocouple 5 and transmit through current detection, whether the detection is in with the gas state, and can feed back this ignition signal to gas control valve 12 on the outside gas supply pipeline, this gas control valve 12 interior cooperation is installed and is used for detecting the flow sensor of the interior gas flow of pipeline, in order to carry out whole judgement, if detect gas supply pipeline gas flow that appears in the period of non-gas, then directly judge the pipeline and leak, automatic closed gas control valve 12, prevent further leakage. In the embodiment, the safety of the application of the gas cooker is further improved by the matched application of the thermocouple 5, the circuit board 11 and the gas control valve 12.

When the gas rice cooker of this embodiment is used specifically, the control principle is as follows: a gas supply pipeline is connected with a gas cooker, after water and rice are put into the gas cooker, a mechanical main switch 1 is pressed, a stop valve 2 is opened at the moment, a magnetic steel temperature control switch 3 is closed, the mechanical main switch 1 keeps a pressing state, a micro electromagnetic valve 4 is pushed open, the whole internal gas channel is opened, the mechanical main switch 1 triggers a sparking switch 6 to be closed, a power supply 7 sends instantaneous high pressure to a sparking needle 8 through a high-pressure bag to spark electric sparks, the furnace end 9 is ignited by the electric sparks, the thermocouple 5 generates electromotive force due to high temperature generated by the sparks to supply power to the micro electromagnetic valve 4 to keep suction, a circuit board 11 detects a current sparking gas signal and sends the current sparking gas signal to a gas control valve 12 through radio frequency to record the gas consumption condition of the rice, the circuit board 11 is powered by the power supply 7, the gas channel keeps the circulation state, and the cooking is started, and the steps are synchronously completed when the mechanical main switch 1 is pressed. If the rice with different humidity is to be cooked, the gear of the adjusting valve 10 can be adjusted to control the big fire and the small fire.

When the rice is boiled to a certain temperature, the attraction magnetic steel magnetism in the magnetic steel temperature control switch 3 is reduced due to the characteristics that the temperature is higher and the magnetism is weaker, the magnetic steel temperature control switch 3 is flicked, the mechanical main switch 1 is reset, the mechanical main switch 1 is not pushed and pressed, the stop valve 2 is reset, the whole internal gas channel is closed, the fire is extinguished, the thermocouple 5 cannot sense the high temperature of the fire at the moment, the miniature electromagnetic valve 4 is reset after power failure, and the circuit board 11 sends a flameout signal to the gas control valve 12 at the moment.

If accidents happen to cause the fire at the furnace end 9 to be extinguished in the process of firing and cooking the gas cooker, such as the situations of blowing out of wind, extinguishing of water overflow, sudden gas disconnection and the like, the flameout protection is started at the moment, namely the thermocouple 5 cannot sense the high temperature of the fire, the miniature electromagnetic valve 4 is powered off and reset, the gas pipeline is cut off, and the use safety of the gas is ensured.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a gas rice cooker safety control system, includes mechanical master switch (1), stop valve (2), magnet steel temperature detect switch (3), switch (6) of striking sparks to and set up in striking sparks needle (8) and thermocouple (5) of furnace end (9) position, its characterized in that: the electric signal connection circuit board (11) is electrically connected with the thermocouple (5), the circuit board (11) is used for receiving a lighting signal detected by the thermocouple (5), the circuit board (11) is electrically connected with a gas control valve (12) on a gas supply pipeline outside the gas rice cooker, the circuit board (11) processes the received lighting signal and sends the processed signal to the gas control valve (12), and the gas control valve (12) judges whether gas leakage exists according to the lighting signal and the detected gas circulation state on the gas supply pipeline.

2. The safety control system of the gas rice cooker as claimed in claim 1, wherein: the electric rice cooker is characterized by further comprising a miniature electromagnetic valve (4) which is arranged on a gas channel inside the gas rice cooker and used for flameout protection, wherein the miniature electromagnetic valve (4) is electrically connected with a thermocouple (5), and after the ignition is successful, the thermocouple (5) generates electromotive force to supply the miniature electromagnetic valve (4) and enables the miniature electromagnetic valve (4) to keep a suction opening state.

3. The safety control system of the gas rice cooker as claimed in claim 1, wherein: the gas cooker also comprises an adjusting valve (10) arranged on a gas channel inside the gas cooker and used for adjusting the size of gas.