MXPA01001260A

MXPA01001260A - Electronic system for combustion control in stove burners.

Info

Publication number: MXPA01001260A
Authority: MX
Inventors: Luis Rojas Calderon Jose
Original assignee: Mabe De Mexico S De R L De C V
Priority date: 2001-02-02
Filing date: 2001-02-02
Publication date: 2002-08-07

Abstract

The present invention refers to an electronic system for combustion control in gas stove burners including at least a burner presenting a flame; gas supply control means to the burner; and a device for generating ignition sparks near the burner, the system also includes a controller device for generating a signal which actuates the control means of gas supply to put out the flame in the burner after some determined time has elapsed when it has been a flame in the burner; the controller device in a programmed operation mode sends a signal to the device for generating ignition sparks for a predetermined time and actuates the control means of gas supply to ignite the flame in the burner.

Description

ELECTRONIC SYSTEM FOR CONTROL OF COMBUSTION IN STOVE BURNERS FIELD OF THE INVENTION The present invention relates in general to devices for the control of combustion, and in particular to a device for controlling combustion in burners of gas stoves with electronic ignition using a microcontroller for the control of the gas supply and the ignition.

BACKGROUND OF THE INVENTION Electronic ignition systems for stove burners such as the one disclosed in document MX-A-9604738 are well known, in which an electronic ignition system for stoves of the type comprising, one or more burners located at the top is described. of the stove and at least one burner for the stove. A plurality of electrodes, each electrode being placed near and in coincidence with each burner for its ignition. A sparking circuit connected to the electrodes, to generate the sparks necessary for the ignition of each burner. A plurality of switches connected to the sparking circuit, said switches being independent for each series of ignition knobs of the stoves which, at the moment of igniting it or the burners of the stove activate the generation module, to generate the ignition sparks on each of the burner electrodes. A power supply line, connected to the sparking circuit, the improvements are characterized by a flame sensor circuit connected between the sparking module and at least one of the burners which, in a first period of time and once said sparking circuit has been activated to ignite said burners, it serves to detect the absence of flame in the burners, and in a second period of time, to detect the presence of flame once the burners have been burned. lit.

Although with the previous system the comfort and safety in the operation is increased, when a specific time of cooking of some food is needed, it is necessary to be pending to extinguish the flame of the burner once the lapse of time has elapsed.

On the other hand, timers have been used to have an indication of the time in the cooking appliance as indicated in the patents US-4037398 and US4182112, which do not mention the control of the gas supply.

In US-4037398 there is shown a digital timer having a selector to adjust the period in which the timer operates by a motor for only a period of time, the timer has a pair of rotating drum indicators mounted on the timer with an arrow. The drums have a pinion gear arranged with each other and operatively associated so that the drums have incremental movement of the other drum in a time relationship with the first drum caused by the connection of the timer motor.

In document US-4037398 a control panel unit is shown which combines the construction of an electronic clock showing the time of day on a digital display and an electromechanical timer control for cooking food.

Likewise, there are other devices such as that of document MX-A-9905762 which regulate the flow of gas to the burner in an oven comprising at least a first burner element arranged inside a cavity of the gas oven. There is a first control valve disposed within a gas conduit connected to the burner element and to a gas source. The control valve controls the passage of gas to the burner element.

There is a first temperature detector arranged to detect the temperature around the burner element. There is a controller electrically connected to the temperature detector and to the control valve, in which said controller guarantees the satisfactory ignition of the burner element by monitoring the temperature signals generated by the temperature sensor, to determine if said signals increase at a speed that is greater than a predetermined one None of the above systems provides a programmed ignition control, nor of extinguishing the flame in the burner and a stove that understands this innovation will allow the housewife to carry out the cooking activities more efficiently.

There are patents whose protected inventions try to control temperature, carbon monoxide, unburned fuels, expense (volumetric or mass), fuel, etc. Such is the case of the system described in US Patent 4,930,488 (Pearman et al). These controls are very complicated and even ineffective, because finally for the needs of a housewife, it is not necessary to have such sophisticated equipment, and controlling the temperature of the flame does not mean that it is controlling the temperature of the medium where the control is being controlled. temperature, neither the food that is being cooked, nor the container in which the cooking is taking place. The patent US 5,310,110 (Akamatzu et al), also following the general idea of most of the protected devices, proposes controlling the temperature more efficiently, taking into account the variation provided by the type of container in which it is being carried out the cooking. This patent also takes into account the particle size of the contained solids and the type of food being cooked. These controls are still too sophisticated, making the product that carries them highly expensive. On the other hand, the housewife, after all the experience she has had, would need to modify her way of cooking. This change would take place with great difficulty and it would be unnecessary since he already has the cooking factors of the food currently controlled.

For all the above, there is still the need to have a combustion control device that is simple, according to the cooking habits of the housewife, which does not require complex and expensive devices.

OBJECTIVES OF THE INVENTION The main objective of the present invention is to provide a combustion control that respects the cooking style of a housewife, but making her task easier. It is another object of the invention to provide a combustion control system in gas stove burners, where it is possible to turn on and off the flame according to a specific time.

Therefore, it is an object of the invention to provide a combustion control system in gas-stove burners, where it is possible to extinguish the flame when a predetermined time has elapsed by cutting off the gas supply using a valve. solenoid.

A further object of the invention is to provide a combustion control system in gas stove burners, wherein the control includes a flame presence or absence detector for electronic ignition.

And all those qualities and advantages that will become apparent at the time of making the description, general and detailed, of the device for the control of combustion, object of the present invention, with support in the figures that for illustrative purposes, but not limiting append to this.

BRIEF DESCRIPTION OF THE FIGURES Fig. 1A shows a block diagram of the general operation of the control system according to the invention.

Fig. 1B illustrates a block diagram of the parts of the control.

Fig. 2A is a flowchart of the operation of the first embodiment of the invention.

Fig. 2B shows a block diagram of the first embodiment of the invention.

Fig. 3A is a flow chart of the operation of the second embodiment of the invention.

Fig. 3B shows a block diagram of the second embodiment of the invention.

Fig. 4A illustrates a flow chart of the operation of the third embodiment of the invention.

Fig. 4B shows a block diagram of the third embodiment of the invention.

Fig. 5A shows a flow chart of the operation of the fourth embodiment of the invention.

Fig. 5B is a block diagram of the fourth embodiment of the invention.

Fig. 6A is a flow chart of the operation of the fifth embodiment of the invention.

Fig. 6B illustrates a block diagram of the fifth embodiment of the invention.

Fig. 7A shows a flow chart of the operation of the sixth embodiment of the invention.

Fig. 7B is a block diagram of the sixth embodiment of the invention.

Fig. 8A is a flow chart of the operation of the seventh embodiment of the invention.

Fig. 8B illustrates a block diagram of the seventh embodiment of the invention.

Fig. 9A is a flow chart of the operation of the eighth embodiment of the invention.

Fig. 9B shows a block diagram of the eighth embodiment of the invention.

Fig. 10A illustrates a flow chart of the operation of the ninth embodiment of the invention.

Fig. 10 B is a block diagram of the ninth embodiment of the invention.

Fig. 11 A is a flow chart of the operation of the tenth embodiment of the invention.

Fig. 11 B illustrates a block diagram of the tenth embodiment of the invention.

Fig. 12A is a flowchart of the operation of the eleventh embodiment of the invention.

Fig. 12B is a block diagram of the eleventh embodiment of the invention.

Fig. 13A shows a flow diagram of the operation of the twelfth embodiment of the invention. Fig. 13B is a block diagram of the twelfth embodiment of the invention Fig. 14A is a flow chart of the operation of the thirteenth embodiment of the invention.

Fig. 14B is a block diagram of the thirteenth embodiment of the invention.

Fig. 15A illustrates a flow chart of the operation of the fourteenth embodiment of the invention.

Fig. 15B is a block diagram of the fourteenth embodiment of the invention.

Fig. 16A is a flowchart of the operation of the fifteenth embodiment of the invention.

Fig. 16B is a block diagram of the fifteenth embodiment of the invention.

Fig. 17A shows a flow chart of the operation of the sixteenth embodiment of the invention.

Fig. 17B is a block diagram of the sixteenth embodiment of the invention.

FIG. 18A illustrates a flow chart of the operation of the seventeenth embodiment of the invention.

Fig. 18B is a block diagram of the seventeenth embodiment of the invention.

Fig. 19A shows a flow diagram of the operation of the eighteenth embodiment of the invention.

Fig. 19B is a block diagram of the eighteenth embodiment of the invention.

Fig. 20A illustrates a flow chart of the operation of the nineteenth embodiment of the invention.

Fig. 20B is a block diagram of the nineteenth embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION The housewife currently has a very controlled way of cooking food, handling only one cooking parameter: time. The temperature is controlled by the medium in which cooking is taking place. The boiling temperature of the water does not allow the temperature to reach beyond a certain level. The same could be said of the oil or fat of frying.

As long as a certain amount of water or oil or fat is kept in the container where it is being cooked, there is no risk of spoiling the food due to excess temperature.

To achieve the objectives established in the present description, a device with the characteristics described below was designed, based on the attached figures.

With reference to Figure 1A which represents the general operation of the system of the invention, it is shown that the control detects by means of Switch SW1 whether the ignition knob has been turned; if so, the control operates the solenoid valve so that there is gas flow to the burner, the controller detects if there is a flame through the flame sensor and if not, it starts to run its period of time so that when finished, the controller Turn off the burner by cutting off the gas supply.

With reference to figure 1B, which illustrates the parts of the control, the controller is composed of a microcontroller that executes in conjunction with the whole system of the components of the stove, the operation of switching off and ignition of the burners and is integrated with a screen (display), a keyboard, a speaker, a power stage and the inputs of the external sensed signals.

In the first embodiment of the invention illustrated with figures 2A and 2B the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, it sends a signal to the solenoid valve, and if it detects that said valve is closed, then the control does not send any signal. The spark is activated by means of control.

When the burner is turned on, the control detects by means of the flame sensor whether there is a flame or not. At the end of the shutdown time in programming, the control stops sending signal to the valve and the burner flame goes out.

In a second embodiment of the invention illustrated with Figures 3A and 3B, the burner can be used like any other. If the control detects by means of the flame sensor that the knob has been turned, it sends a signal to the solenoid valve, and if it detects that there is no flame it does not send any signal. The spark is activated by means of switch SW1.

When the burner is turned on, the control detects by means of the flame sensor whether there is a flame or not. At the end of the shutdown time in the programming the control stops sending signal to the valve and the flame of the burner goes out, In a third embodiment of the invention illustrated with Figures 4A and 4B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, said control sends a signal to the solenoid valve and if said control detects that the valve is closed, the control does not send any signal. The spark is activated by means of switch SW2.

In a fourth embodiment of the invention illustrated with Figures 5A and 5B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, it sends a signal to the solenoid valve and if it detects that the valve is closed, it does not send any signal. The spark is activated by means of control.

When the burner is turned on, at the end of the shutdown time during programming, the control stops sending the signal to the valve and the burner flame goes out.

In a fifth embodiment of the invention illustrated with Figures 6A and 6B, the burner can be used like any other. The control always sends a signal to the solenoid valve. The spark is activated by means of switch SW1.

When the burner is turned on, at the end of the shutdown time in the programming, the control stops sending signal to the valve and the burner flame goes out and the control will send a signal when it detects a new signal coming from switch SW1.

In a sixth embodiment of the invention illustrated with Figures 7A and 7B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, it sends a signal to the solenoid valve and if it detects that the valve is closed, it sends no signal. The spark is activated by means of switch SW2 and control.

When the burner is turned on, at the end of the shutdown time in programming, the control stops sending signal to the valve and the burner flame goes out.

In a seventh embodiment of the invention illustrated with Figures 8A and 8B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, this control sends a signal to the solenoid valve and if it detects that the valve is closed, it does not send any signal. The spark is activated by means of control.

When the burner is turned on, the control detects by means of the flame sensor whether there is a flame or not. At the end of the shutdown time in programming, the control stops sending the signal to the valve and the burner flame goes out.

In an eighth embodiment of the invention illustrated with Figures 9A and 9B, the burner can be used like any other. If the control detects by means of the flame sensor that the knob has been turned, this control sends a signal to the solenoid valve and if it detects that the valve is closed, it does not send any signal. The spark is activated by means of switch SW1.

In a ninth modality of the Invention illustrated with the figures 10A and 10B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, it sends a signal to the solenoid valve and if it detects that the valve is closed, it does not send any signal. The spark is activated by means of switch SW2.

In a tenth embodiment of the invention illustrated with Figures 11 A and 11B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, this control sends a signal to the valve and if it detects that the valve is closed it does not send any signal. The spark is activated by means of switch SW2.

In a tenth embodiment of the invention illustrated with Figures 12A and 12B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, it sends a signal to the internal switch and the sensor sends the signal to the valve, and if the control detects that the valve is closed, the internal switch is opened. The spark is activated by means of switch SW1.

When the burner is turned on, the control detects by means of the flame sensor whether there is a flame or not. At the end of the shutdown time in programming, the control stops sending the signal to the valve by opening the switch and the burner flame goes out.

In a twelfth embodiment of the invention illustrated with Figures 13A and 13B, the burner can be used like any other. If the control detects by SW1 Switch that the knob has been turned, this control sends a signal to the internal switch and the control sends the signal to the valve, and if the multi-monitored control detects that the valve is closed, the switch is opened internal. The spark is activated by means of switch SW2.

In a thirteenth embodiment of the invention illustrated with FIGS. 14A and 14B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, said control sends a signal to the valve and if said control detects that the valve is closed, it does not send any signal. The spark is activated by means of control.

In a fourteenth embodiment of the invention illustrated with Figures 15A and 15B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, said control sends a signal to the valve and if it detects that the valve is closed, it does not send any signal. The spark is activated by means of switch SW1 and control.

When the burner is turned on, at the end of the shutdown time in programming, the control stops sending the signal to the valve and the burner flame goes out.

In a fifteenth embodiment of the invention illustrated with Figures 16A and 16B, the burner can be used like any other. If the control detects by means of Switch SW1 that the knob has been turned, said control sends a signal to the internal switch, and if said control detects that the valve is closed, the internal switch is opened. The spark is activated by means of switch SW2.

When the burner is turned on, at the end of the off time in programming, the control stops sending the signal to the valve by opening the Switch and the burner flame goes out.

In a sixteenth embodiment of the invention illustrated with FIGS. 17A and 17B, the burner can be used like any other. If the control detects by means of Switch SW1 that the knob has been turned, said control sends a signal to the solenoid valve, and if it detects that the valve is closed, it does not send any signal. The spark is activated by means of switch SW1 and control.

In the programming operation mode, the signal is sent until the programmed time comes to an end and a second signal is sent to the spark module for a certain time and through the flame sensor it is detected if there is a flame or not.

At the end of the shutdown time in programming, the control stops sending the signal to the valve and the burner flame goes out. If the flame is extinguished, the control turns it on again.

In a seventeenth embodiment of the invention illustrated with FIGS. 18A and 18B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, this control sends a signal to the solenoid valve and if it detects that the valve is closed it does not send any signal. The spark is activated by means of switch SW2 and control.

In a eighteenth embodiment of the invention illustrated with FIGS. 19A and 19B, the burner can be used like any other. If the control detects by means of switch SW1 that the knob has been turned, this control sends a signal to the solenoid valve and if it detects that the valve is closed it does not send any signal. The spark is activated by means of switch SW1 and control.

In the programming operation mode, the signal is sent until the programmed time reaches its end and a second signal is sent to the spark module for a certain time and through the flame sensor it is detected if there is a flame or not . At the end of the shutdown time in programming, the control stops sending the signal to the valve and the burner flame goes out. If the flame is extinguished, the control turns it on again.

In a nineteenth embodiment of the invention illustrated with Figures 20A and 20B, the burner can be used like any other. If the control detects by means of Switch SW1 that the knob has been turned, it sends a signal to the solenoid valve and if said control detects that it is closed, it does not send any signal. The spark is activated by means of Switch SW2 and the control.

In the programming operation mode, the signal is sent until the programming time comes to an end and a second signal is sent to the spark module for a certain time and through the flame sensor it is detected if there is a flame or not.

At the end of the shutdown time in programming, the control stops sending the signal to the valve and the flame of the burner goes off. IF the flame goes out, the control turns it on again.

The system also allows re-ignition, being able to have a re-ignition system, which if it detects that there are no flames, must try again to light the burner, for a certain number of attempts or at a certain time, leaving the system activated if it is successful and if it fails it sends a warning to the fault device and closes the solenoid valve.

The invention has been sufficiently described so that a person with average knowledge e? the material can reproduce it and obtain the results that we mentioned in the present invention. That is, the present has been described with sufficient qualification. However, any person skilled in the art who is competent in the present invention may be able to make modifications not described in the present application, however, if for the application of these modifications the matter claimed in the following claims is required. , said modifications should be understood within the scope of the invention, defined in the following claims.

Claims

R E I V I N D I C A C I O N S

1. - An electronic system for the control of combustion in gas stove burners that includes, at least, a burner in which a flame is present; control means for gas supply to the burner; and a device for generating ignition sparks near the burner, the system is characterized in that it includes a controller device for generating a signal that activates the gas supply control means to extinguish the flame in the burner after a predetermined time has elapsed. since there is flame in the burner.

2. - An electronic system for combustion control in gas stove burners according to claim 1, characterized in that the control means for gas supply to the burner include a solenoid valve independent of a regulating valve.

3. - An electronic system for the control of combustion in gas stove burners according to claim 2, characterized in that the system also includes a flame sensor.

4. - An electronic system for the control of combustion in gas stove burners according to claim 3, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by the controller.

5. - An electronic system for the control of combustion in gas stove burners according to claim 3, characterized in that, the system also includes a first switch to activate the spark ignition and the flame sensor detects if a knob has been rotated to that the controller generates a signal to open or close the solenoid valve.

6. - An electronic system for the control of combustion in gas stove burners according to claim 3, characterized in that the system also includes a first switch to detect if a knob has been rotated, so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by a second switch.

7 .- An electronic system for the control of combustion in gas stove burners according to claim 2, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal for that opens or closes the solenoid valve; In addition, the ignition spark is activated by the controller.

8. - An electronic system for the control of combustion in gas stove burners according to claim 2, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by said first switch.

9. - An electronic system for the control of combustion in gas stove burners according to claim 2, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by a second switch.

10. - An electronic system for the control of combustion in gas stove burners according to claim 1, characterized in that the gas supply control means to the burner includes a solenoid valve integrated to a regulating valve.

11. An electronic system for the control of combustion in gas stove burners according to claim 10, characterized in that the system also includes a flame sensor.

12. - An electronic system for the control of combustion in gas stove burners according to claim 11, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by the controller.

13. - An electronic system for the control of combustion in gas stove burners according to claim 11, characterized in that the system also includes a first switch to activate the spark ignition and the flame sensor detects if a knob has been rotated to that the controller generates a signal to open or close the solenoid valve.

14. - An electronic system for the control of combustion in gas stove burners according to claim 11, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller opens or closes the solenoid valve; In addition, the ignition spark is activated by a second switch.

15. - An electronic system for the control of combustion in gas stove burners according to claim 11, characterized in that the system also includes a first switch to detect if a knob has been turned and an internal switch of the controller is closed so that a signal sent by the flame sensor, open or close the solenoid valve, in addition the ignition spark is activated by the controller.

16. - An electronic system for the control of combustion in gas stove burners according to claim 11, characterized in that the system also includes a first switch to detect if a knob has been turned and an internal switch of the controller is closed so that a signal sent by the flame sensor opens or closes the solenoid valve, in addition the ignition spark is activated by the first switch.

17. - An electronic system for the control of combustion in gas stove burners according to claim 11, characterized in that the system also includes a first switch to detect if a knob has been turned and an internal switch of the controller is closed so that a signal sent by the flame sensor opens or closes the solenoid valve, in addition the ignition spark is controlled by a second switch.

18. - An electronic system for the control of combustion in gas stove burners according to claim 10, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by the controller.

19. - An electronic system for the control of combustion in gas stove burners according to claim 10, characterized in that the system also includes a first switch to detect if a knob has been turned so that the controller generates a signal to open or close the solenoid valve; In addition, the ignition spark is activated by said first switch.

20. - An electronic system for the control of combustion in gas stove burners according to claim 3, characterized in that, the controlling device in a programmed operation mode sends a signal to the device to generate sparks of ignition for a predetermined time and activates the control means of gas supply to ignite the flame in the burner.

21. - An electronic system for the control of combustion in gas stove burners according to claim 2, characterized in that the controlling device in a programmed operation mode sends a signal to the device to generate ignition sparks for a predetermined time and activates the means of gas supply control to ignite the flame in the burner. SUMMARY The invention relates to an electronic system for the control of combustion in gas stove burners that includes at least one burner in which a flame is presented; control means for gas supply to the burner; and a device for generating ignition sparks near the burner, the system further includes a controller device for generating a signal that activates the gas supply control means to extinguish the flame in the burner after a predetermined time has elapsed from that there is flame in the burner; the controlling device in a programmed operation mode sends a signal to the device to generate ignition sparks for a predetermined time and activates the gas supply control means for igniting the flame in the burner.