JPS6099927A - Combustion control device for gas of heating cooker - Google Patents

Abstract

PURPOSE:To minimize the ON-OFF operation of a solenoid valve and reduce the variabilities of temperature in a casing and cooking by a method wherein the amount of gas is changed in accordance with temperature by a proportional type governor. CONSTITUTION:When a knob 32 is turned, a shaft 47 is turned, the closing piece 48 of a gas cock is turned to open the cock fully, gas enters from a hose end 38, the gas flows to the seat of the gas cock through a pipe 49 and the bottom hole of the closing piece 48, then the gas flows to a gas pipe through an elbow pipe 51 by the ON operation of the solenoid valve 43 under being controlled in the pressure thereof by the proportional type control governor 39. Now, in case the temperature in the casing of a combination range is set at 300 deg.C on the slide volume of an indicating plate, a spring 56, located at the connecting part of the proportional control governor 39, is compressed and the governor spring 60 of the governor 39 is compressed, therefore, the flow amount of gas becomes maximum. In this case, the governor spring 60 is contracted and the flow amount of gas is reduced when the pressure of gas has become higher than the reference pressure value thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a gas combustion control device for a heating cooker such as a composite cooker that integrates a gas oven and a microwave oven, or a simple gas oven.

Conventional configuration and its problems In conventional systems that are controlled using multiple solenoid valves, for example, two burners are used in different strengths, so it is difficult to turn the solenoid valves on or off.
The number of OFF cycles was increasing, and the fluctuations were also becoming larger.

That is, in Fig. 1, when knob 1 is turned, shaft 2
It spins. When the closure 3 of the gas cock turns, it is fully opened, and the gas flows into the hose end 4, through the pipe 5, through the bottom hole of the closure, to the seat 6 of the cock, through the elbow pipe 7, and then the gas governor 8 is applied. Then, air is sucked directly from the first electromagnetic valve 10 through the gas pipe 11 and from the non-null A12 of the e1 burner 12 through the damper 14a, and is combusted. Furthermore, the first
From the solenoid valve 10 to the 2' sight valve 15 and the second burner 16
The nozzle B17 sucks air from the damper 14b and fires it in the furnace. In either case, all of these will disappear, only one will turn on and off, or one will be on and the other will be off.
Since control is limited to either N or OFF, or both ON and OFF, the calorie setting according to the temperature setting chain is stepwise and cannot be finely adjusted.

In addition, as a second example of the conventional example, as shown in FIG. 2, when the knob is turned, the closing member 19 of the Kanuko Tsukku 18 is turned and it is fully opened, and the gas flows into the hose end 20, causing the pyro-no-I
- governor 21 adjusts the scum pressure for pyro, yl, and pyro, and the pie four 1 burner 22 ignites it. safety valve 2
The thermo element 24 which is branched from 3 and υ operates and the safety valve 23
is held. When the waste flows from the safety valve 23 into the cabana 25, the pressure is adjusted, and the proportional valve 26 supplies gas according to the temperature. The solenoid valve 27 is the upper flame transfer burner 28
- Supplying gas to the large burner 29. Heating storage 30
There is an internal temperature sensor 31 in a part of the interior, which senses the internal temperature and is linked to the proportional valve 26 .

This second example uses a proportional valve with a complex structure, so
Since this resulted in a significant increase in cost, all conventional combination ranges had the configuration of the first example.

Purpose of the Invention The present invention solves the above-mentioned drawbacks of the conventional art, and uses a proportional governor to completely change the amount of gas depending on the temperature.
The purpose is to minimize the number of OFF times, at low cost, and to keep fluctuations small.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides an operating lever for setting the outside and inner degrees, and a slide bolt connected to the operating lever.
a variable resistor for a temperature sensor that is linked to the slide volume, an mJ temperature proportional governor, an ill solenoid valve that communicates with the temperature proportional governor, and a nozzle and a burner that communicate with the solenoid valve, 1iiJ Slide Volley
The heating system is connected to a temperature sensor resistor and a temperature proportional governor, which is connected to a heating π1'31 temperature proportional governor and a solenoid valve. It has become.

Description of examples An embodiment of the present invention will be described below based on the drawings.

Figure 3 shows the integrated microwave oven and gas oven (If
FIG. Knob 3
2, the gas flows. The temperature slide knob 33 can be moved up and down to set the fermentation temperature from, for example, 300°C to around 40°C.

In FIG. 4, when the gas cock knob 32 is turned, the gas cock 34 is opened and at the same time, the Ganu cock nuitch 35 is turned on, the high pressure spark generator 36 is activated, and the ignition plug 37 generates a spark. On the other hand, Hornu End 3
The scum that came from 8 passed through Gasco Tsuk 34, passed through Cabana 39, and was brought to burner 40 by the 111th spark.
is ignited, the flame rod 41 senses the signal, and the solenoid valve 43 is opened and closed via the microcomputer 42 based on the signal. Then, gas flows through the main gas passage 44 to the main burner 40.45, and the MiJ spark plug 41
Reignited by. Thereafter, the temperature sensor 46 detects the temperature J!i in the heating chamber (not shown), and in response to that one word, the solenoid valve 43 is turned on via the microcomputer 42.
Turn off and control the heating temperature in the open refrigerator to the set heating temperature.

Regarding Fig. 5, when the knob 32 is fully turned, the shaft 47 is twisted, and when the gas cock closure 48 is twisted, the cock is fully opened, gas flows in from the hose end 38, and is closed via the pipe 49. Child 48's bottom full-length Fukasukoku seat 5
0 flows through L water 8■51, the scum pressure is controlled by the proportional control governor 39, and the solenoid valve 43 is turned on and +0FF)
As a result, the waste flows through the waste pipe 44. Nozzle 51.52
More gas is blown out, the tampers 53a and 53b, and the tampers 53a and 53b suck the air and are burned by the burners 40 and 45.

The details 1 of the proportional side tilt 1 governor 39 shown in FIG. 5 will be explained. If the f axis of the temperature display board 54 in the open refrigerator is set to 300°C, the operating rod 55 should be set at 1&v at 300°C in the figure.
A spring 56 is arranged on the operating rod 55 to transmit the setting position of the temperature value to the two wheels.
7.58, and on the 5th day, the rod 59 of the proportional control governor 39 has the governor spring 600 and seat 61 fixed, and will transmit the set position.

Furthermore, since a slide volume 62 is installed in parallel with the operating rod 55, by matching the internal temperature of the oven with the resistance value of the temperature sensor 46, when the internal temperature of the oven reaches 1 m degree or higher, It can be cut using the solenoid valve 43.

The effects of the above configuration will be explained below.

If the internal temperature of the combination range is set to 300°C on the slide volume 62 of the display board, the spring 56 at the connection part of the proportional control governor 39 is compressed, and the mouth/throat 59 of the proportional control governor 39 is compressed. Since the governor spring 60i is also compressed, the waste flow rate becomes maximum. At this time, if the gas pressure becomes higher than the standard, the cabana blink 60 contracts to reduce the gas flow rate. As described above, according to this embodiment, one solenoid valve 43 and one proportional control governor 39 have the effect of making the gas flow rate proportional to temperature and the gas pressure constant.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) Since it is possible to secure the waste flow rate according to the set value of the internal temperature, there is no need for a solenoid valve.

There is no OFF, and a constant temperature can be obtained.

Therefore, since there is almost no differential caused by turning the solenoid valve ON and OFF, variations in the internal temperature at the time of adjustment and variations in cooking are reduced.

(2) Since the gas pressure cabana and the anchor 4 degree control cabana are heated with one proportional gas scum, management is easy. The structure is also simpler.

(3) Since only one solenoid valve is required, there are fewer leakage parts, which improves safety and reduces costs, and the structure is simple.

, Easy drawing! 4'J, Context Figure 1 is a configuration diagram showing a conventional example, Figure 2 is a configuration diagram showing another conventional example, and Figure 3 is a perspective view of the main body which is an embodiment of the present invention. FIG. 4 is a diagram showing the same configuration, and FIG. 5 is a diagram showing the gas passage configuration.

32...Knob, 39...Proportional control gear, 40.45...Burner, 43...
Solenoid valve, 46...Temperature sensor, 62...
・Slide volume.

Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 21jiil First 3 Figure 3 33 Figure 4 8 Figure 5

Claims (1)

[Scope of Claims] (1) An operating rod for setting the internal temperature, a nullide volume connected to the operating rod, a variable resistor for a temperature sensor linked to the slide volume, and the temperature proportional governor; Refuse combustion control for a heating cooker, comprising a solenoid valve communicating with the temperature proportional governor, a nozzle and a burner communicating with the solenoid valve, and configured such that the slide volume is linked to a temperature sensor resistor and the temperature proportional governor. Device. (21/Aii) The heating cooking Zg dregs combustion control device according to claim 1, wherein the K proportional cabana corresponds to one solenoid valve, and the gas is stopped by the solenoid valve in case of excessive temperature. (3 ) The spring of the temperature proportional governor is connected to the spring of the operating rod mentioned above by a kerosod, and the temperature can be set rrr, +7r by changing the strength of both sedge links.
lf-1++, mJ! L-'jshirJr-rl"→-
+l/'Urir'r-hZ--'At [T knee 1-+ device according to claim 1 for twisting and twisting without cooking.