JPS6157528B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas grill oven capable of cooking grilled food and oven food, and is intended to suppress the amplitude of set temperature to a small level, improve cooking performance, and improve usability.

In this type of conventional example, an ON-OFF contact type thermostat is used to control the temperature from 100° to 300°C, but regardless of the presence or absence of a governor, the primary pressure is 280
mmH ₂ O, and the secondary pressure was 260 mmH ₂ O, which was a one-point pressure adjustment configuration. Therefore, regardless of the high or low temperature setting, the gas flow rate supplied to the burner is always constant, so the temperature amplitude at each set temperature becomes large, especially when cooking gradually over low heat. The higher the cooking temperature, the more adverse the effects were. That is, 100 on the thermostat
Even if the inside of the refrigerator is set to
If it is heated at 50deg, it will instantly rise to 125℃, and the surface of the food will become too brown, and if it is a food that will rise, such as bread, it will lose its chance and will not rise well. This is what happened.

The present invention solves the drawbacks of the above conventional example,
An embodiment will be described below with reference to the drawings. 1 is an oven compartment, 2 is an upper burner installed above and outside the oven compartment 1, 3 is a lower burner installed below inside the oven compartment 1, and 4 is an oven heat shield plate that blocks the direct flame of the lower burner 3. , 5 is an upper solenoid valve connected to the upper burner 2, 6 is a lower solenoid valve connected to the lower burner 3, 7 is a governor connected to the upper solenoid valve 5 and the lower solenoid valve 6, respectively, and supplies the upper and lower burners 2 and 3. The pressure of the gas is variably adjusted. 8 is a gas tank connected to the inlet of the governor 7, 9 is a micro switch that opens and closes the excitation circuit 5a of the upper solenoid valve 5, and 10 is the excitation circuit 6 of the lower solenoid valve 6.
A thermostat has a contact 10a connected to the terminal a, and the contact 10a is opened and closed in response to a signal from an internal temperature sensing section 11 such as a sensor installed in the center of the oven 1. 12 is a power source for each excitation circuit 5a, 6a; 13 is a governor gear integrally formed with a pressure regulating cam 14 on the back side and a switch cam 15 on the front side; it is rotated by the knob 16, and the governor 7 is adjusted by the pressure regulating cam 14; the micro switch 9 is opened and closed by the switch cam 15. As shown in FIGS. 2 and 3, the pressure regulating cam 14 forms an oven pressure regulating surface 14c which has a larger rotation angle than the grill pressure regulating surface 14b which is gradually tilted higher and which regulates the pressure from a low pressure to a high pressure via a stopper 14a. , furthermore, there is a flat high pressure surface 14d with the highest pressure regulation between the two. A thermostat gear 17 is rotated by the governor gear 13 and adjusts the temperature setting of the thermostat 10 during the oven, and the gear is eliminated by the rotation angle of the grill area so that it idles with the governor gear 13 during the grilling.

In the above configuration, gas enters the governor 7 from the gas tank 8, where the pressure is variably regulated and the upper solenoid valve 5
The fuel is supplied to the upper burner 2 through the lower solenoid valve 6, and to the lower burner 3 through the lower solenoid valve 6, where they are ignited and burned. and,
When grilling, the upper and lower burners 2 and 3 are used, and when in the oven, only the lower burner 3 is used except for the upper and lower burners 2 and 3 used only when cooking at a high temperature exceeding 300°C.

Next, there is a thermostat gear 17 which is a thermostat operating means for controlling the thermostat 10 and governor 7 in this grill and oven, and a governor gear 1 which is a governor operating means.
3.The pressure regulating cam 14, also the switch cam 15
The related operations will be explained in detail based on FIGS. 4 and 5.

The area from Fig. 5 A to Fig. 5 B is the grill area, and in Fig. 5 A, the thermostat gear 17
is in a position where it does not mesh with the governor gear 13, and the thermostat 10 is set to the maximum temperature.
On the other hand, switch cam 15 is micro switch 9.
Press to turn it on. Therefore,
Each excitation circuit 5a, 6a is operated by the micro switch 9 and the contact 10a of the thermostat 10, and the upper and lower solenoid valves 5, 6 are opened, and the upper and lower burners 2,
3 burns. At this time, the gas being supplied to the upper and lower burners 2 and 3 is regulated to a low pressure because the governor 7 is located at the lowest position of the grill pressure regulating surface 14b in the pressure regulating cam 14, so the pressure stroke is short and the gas is regulated to a low pressure. There is. From this point on, when the governor gear 13 is rotated to the point B in Fig. 5, the thermostat gear 17 does not rotate and the
Since the switch cam 15 is in the same position as in Figure A and turns on the micro switch 9, the thermostat 10 remains set at the maximum temperature and the upper and lower burners 2 and 3 continue to burn. Since only the governor 7 moves from the low position to the high position along the grill pressure regulating surface 14b and the high pressure surface 14d, and the pressing stroke becomes longer, the gas pressure increases as shown in FIG. 4, and as shown in FIG. The pressure reaches the highest level, and as a result, the thermal power of the upper and lower burners 2 and 3 is adjusted to reach the highest level.

Next, the area from Figure 5B to Figure 5D is the oven area, and the governor 7 in Figure 5B is the pressure regulating cam 1.
When located at the high pressure surface 14d of No. 4, the gas pressure is regulated to the highest level, while the upper and lower burners 2 and 3 continue to burn, and a high temperature oven exceeding 300° C. is performed. From this, when the governor gear 13 is rotated, the switch cam 15 turns off the micro switch 9 and opens the excitation circuit 5a as shown in FIG. only burns. Then, the governor 7 moves to a high position above the oven pressure regulating surface 14c of the pressure regulating cam 14, so the gas pressure is regulated to a high pressure as shown in FIG. Same as Figure 5 A and B, the maximum temperature should be reached, but since upper burner 2 is extinguished and only lower burner 3 is on, thermostat 10 is set at 300.
Set to ℃. If the governor gear 13 is rotated further from this point, it will mesh with the governor gear 13 and the thermostat gear 17 will operate, so the thermostat 10 will be set at various temperatures from 300°C to 34-40°C before yeast fermentation. Ru. In the same way, the governor 7 is connected to the pressure regulating cam 1.
During this time, the pressure of the gas is regulated from high to low according to each set temperature of the thermostat 10, and the firepower of the lower burner 3 is adjusted. Furthermore, in FIG. 5D, the thermostat gear 17 linked to the governor gear 13 is in the yeast fermentation position, so the thermostat 10 is
Yeast fermentation conditions are set at 34° to 40°C. Of course, since the governor 7 is located at a lower position than the oven pressure regulating surface 14c of the pressure regulating cam 14, the pressure of the gas is regulated to a low level as shown in Fig. 4, and the firepower of the lower burner 3 is set to a low heat that is optimal for yeast fermentation. It is something.

FIG. 6 shows the temperature amplitude at the internal temperature setting shown on the vertical axis against the elapse of time on the horizontal axis during oven operation.
Since the gas pressure is adjusted to high and low pressure at the same time as the temperature adjustment by The amplitude becomes smaller as
In the conventional example shown in FIG. 6B, the temperature amplitude can be made much smaller than d ₁ ≒d ₂ ≒d ₃ regardless of the high and low temperature range.

In this way, the present invention combines a thermostat and a governor by providing a governor operating means for variably regulating the pressure of gas supply to the upper and lower burners and a thermostat operating means interlocked with the governor, and controls the gas pressure when the thermostat is set to a high temperature. Since it is possible to adjust the gas pressure to a high level and to a low level when the temperature is set to a low temperature, the temperature fluctuation during oven operation can be reduced and delicious dishes can be prepared without failure, and the effect is particularly noticeable when cooking at low temperatures.

In addition, the governor operating means is linked with a switch cam that opens and closes a switch connected to the excitation circuit of the upper burner solenoid valve, and an operating means for setting the temperature of the thermostat that opens and closes the excitation circuit of the lower burner solenoid valve. , all operations from grilling to oven cooking can be performed by operating the governor operating means, and a convenient appliance that is extremely easy to operate and handle can be provided.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of a gas flow system circuit and an electrical system circuit showing an embodiment of the gas grill oven of the present invention, Fig. 2 is a perspective view of the same governor gear, Fig. 3 is a back view of the same governor gear, and Fig. 4 Figure 5 is an operational diagram of the same governor, and Figure 5 is a diagram of the operational relationships between the thermostat gear and the governor gear, and between the governor gear and the governor. This is the time of yeast fermentation in the oven. FIG. 6 is a diagram showing the adjustment characteristic of the internal temperature during the oven operation of the gas grill oven of the present invention and the conventional gas grill oven, where A is the present invention and B is the conventional example. 1... Oven storage, 2... Upper burner, 3... Lower burner, 7... Governor, 10... Thermostat, 13, 14, 15... Governor gear, pressure regulating cam, switch cam (governor operating means), 17 ……
thermostat gear.

Claims (1)

[Claims] 1 Lower burners disposed above and below the oven compartment and used during the oven, an upper burner used together with the lower burner during grilling, a governor that variably regulates the pressure of the gas supplied to the upper and lower burners, and this governor. A solenoid valve A provided in the gas supply path of the upper burner and a solenoid valve B provided in the gas supply path of the lower burner downstream of the a thermostat that controls ignition and extinguishing of the lower burner; a governor operating means that forcibly varies the governor during both oven and grilling; and a governor operating means that ignites and extinguishes the upper burner; A thermostat operating means that sets the temperature of the thermostat and fully opens the thermostat during grilling, and a switch cam that opens and closes a switch linked to the governor operating means and connected to the excitation circuit of the solenoid valve A. Gas grill oven.