JPS58142127A - Compound heating cooker - Google Patents

Abstract

PURPOSE:To cool only the sensing section and consequently enable to keep the detection accuracy at high level by a structure wherein the cooling of the sensor is made possible from the outside of an exhaust passage with the wind produced by a cooling fan, in the cooker equipped with sensors to detect the temperature, gas generated and the like in a heating chamber. CONSTITUTION:A cooling fan 6 to cool electronic parts such as a magnetron 5 and the like and a duct 7 to lead the wind produced by the cooling fan 6 into the heating chamber 2 are provided in the neighborhood outside the side wall 3 and upper wall 4 of the heating chamber 2 respectively, in the compound heating cooker which incorporates a gas oven and an electron range. Furthermore, a blast duct 8 which is composed of a part of the duct 7, is extended on the upper wall 4 in order to lead cooling air to terminals 11 side of a humidity sensor 10, which is mounted to an auxiliary exhaust duct 9 to exhaust a part of the exhaust gas in the heating chamber 2 outside the main body. Said blast duct 8 communicates to a main duct 12 to lead the exhaust gas out of the heating chamber 2. The air passing through said blast duct 8 cools the terminals 11 of the sensor 10 and joints with the exhaust gas in the duct 12 and, after that, is exhausted from a main exhaust port 13 outside the main body.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is particularly directed to complex heating cookers such as microwave ovens with gas ovens. ii! Degree sensor or lArAr upper 4
．． This relates to the current sensor and the cooling of the flushing gas.

Conventionally, there has been a sensor that allows automatic cooking to +11 function and a humidity sensor that detects changes in relative humidity (7), which were used in electric ovens.This humidity sensor has a surface temperature of 1! (・1, etc., and there was no problem in general microwave cooking. When used as a gas oven, the temperature of the heating chamber 11, I, ?high 300℃ exceeds the heat resistance limit of 1!n!
Couldn't use it. Also, it is possible to lower the exhaust temperature by blowing some kind of cooling air into the area where the humidity sensor is installed, but if the i'AW degree of the exhaust gas is lowered, the gas oven When used as i'! in the heating chamber. If the degree is lA1't IJt sensor, it is 11: cannot be detected accurately 6, furthermore, with the electric range (when using 2-C, the /!i+j IC sensor cannot be detected) relative 1'! The temperature will deviate from that in the heating chamber, making it impossible to perform automatic heating, which will cause the exhaust gas to deviate.
l! Q-1: The method of heating the cooling air at a temperature of 1°C (Tl) was difficult to put into practical use.

The present invention solves the technical problems described above by measuring the temperature of a humidity sensor without reducing its detection ability.
+) function, and the purpose is to enable automatic adjustment in a composite heating cooker.

In order to achieve the object described in item 1-, the composite heating cooker of the present invention is installed on the passage wall that guides the exhaust gas in the heating chamber or on the end r portion which is a part of the sensor located outside C)9!?,-,! , - forced 1
(-cool down the
(Jojjlj.

The figure shows an embodiment of the present invention which is designed to lower the exhaust gas temperature by 3 degrees or more.

I will clarify. In Fig. 1, I' ((r
k A perspective view of the L/river section case 1 is shown. Outside the side wall 3 of the heating chamber 2 that houses the object to be heated (not shown),
・iL, magnetron 5, I'l' around the outside of Yohi 1 wall 4
l Place the Wα magnetron 5 and other electronic components in a cold J.
A cooling fan 6 and a duct 7 for guiding the air from the cooling fan 6 into the heating chamber 2 are provided. A blower duct 8, which is a part of this duct 7, extends L'', <41- of the heating chamber 2, and serves as a sub (11 air tact 9 i'! shown in Figure 3 attached to the i'!
i! l (and l2/the 10's ψ1fri 'J' 11
Cool to 1till〕'γn 6 wind L/) Part of it is guided <1.
Furthermore, the exhaust gas inside the heating chamber 2 is led to the outside of the main body through the I/C.

There is a continuous blind peak on the exhaust tact 12, and the V of the humidity sensor 10:! 1
The wind Qj that cooled the i J”11, this main exhaust duct 12
It has a structure in which it merges with the exhaust gas 1113 and is discharged outside the main body from the exhaust gas 1113.

The following describes the code operation I/(1) G1-C.

First, the case where it is used as a gas-pun will be explained. Place the 6 objects to be heated in the JII heat chamber 2, and set the cooking temperature range using the 'IAA degree setting device (not shown) on the operation panel 141°.
The temperature is set to a predetermined temperature, and the cooking time is set to a predetermined time using a timer (not shown). Next, when the cooking start key 16 is pressed, the gas burner 16 shown in FIG. 2 is ignited, and the hot air circulation fan 17 starts rotating to begin circulating hot air into the room.

A part of the hot air mentioned above in the heating chamber 2 is discharged from the main exhaust hole 18 to the lid exhaust duct I. It flows into the exhaust duct 9.

= h' The Macnetron 6 is in the stopped state 1-, but when the gas oven (-) is used for a short time, the inside of the heating chamber 2 is at a maximum of 3
To be heated to 00°C, the temperature II-J should be rapidly cooled by rotating the cooling)-No. 76 at the same time. Rotation start timing of this cooling fan 6 &-1, Moe 1112
1 at the same time as the manual power of the cooking start key 15, that is, in FIG. As it enters the inside of the air duct 8, a part of fll+ flows through the air duct 8 as shown in Figure 114 -C!1ill 1
Temperature sensor 20 attached to the bowl air duct 9 wall and In!
The end -In-11 of the temperature sensor 10 that protrudes outside the wall of the humidity sensor 910 is cooled, and further inside the main exhaust tact 12'\
U1 flows out of the main body from the main rJF air 1113.

In this embodiment, even if the inside of the heating chamber 2 reaches 300°C, the humidity sensor 10 can be cooled to below 180°C, and it is possible to cool the humidity sensor 10 to below 200°C, which was the heat-resistant temperature of conventional humidity sensors. This makes it possible to install a humidity IW sensor on a composite cooker. In other words, the automatic adjustment function of the microwave oven in the composite cooker has become J41 or l'l) function. Furthermore, 1
Cooling air in fan duct 8, straight 1, 11, 1 air duct 1
By merging into 2, 1. II Temperature ILJ can be lowered, and O (L's low 1' - 10) 1 I! , -1f'
il A/) 4C1 (- has been completed. 1i1i The timer has been activated for a fixed period of time, and the heating has been completed.)

Next, when using it as a microwave lens, store the object to be heated in the heating chamber 2. Key(
(not shown) manually and press the cooking start key 21.
Magnetoon5 oscillates and starts high frequency heating. At this time, the cooling fan 6 rotates, and as in the case of the gas oven described above, this cooling air flows into the heating chamber 2 and into the air duct 8.
Flows inward. When steam is generated from the object to be heated and detected by the humidity sensor 1° or a predetermined relative humidity change meter, the high frequency oscillation is automatically stopped by the transmitted signal, and the automatic cooking ends. In this case as well, the end 'T of the humidity sensor 1o
Of course, the -11 side is cooled by the cooling air from the cooling fan 6.

FIG. 6 shows an eleventh embodiment of the present invention. In this embodiment, one end 22 of the ventilation duct 8 is formed into a slow I-shape 1-inside the sub-exhaust passage 9 (C), thereby adjusting the exhaust flow velocity in the sub-exhaust passage 9 and improving the refresh rate of the humidity sensor 1o. The time is reduced to 11F angle during cooking when heated in an electric oven. Also, upper exhaust tact 1
The exhaust air 'lA1' + IL!- flows into the inside of the air duct 12.
″,・・2 can be done.

As described in 1- below, the present invention has the following effects! 4':,+
,, L! I.

(1) Due to the wind from cooling fan f7, i'! n! 10:l
Knee/-! J-s'H (II Cooling from the outside of the air passage 5j, S, JIJI'<C &:t i
It is possible to cool down the knob of the sensor part repeatedly, and the automatic IM control of the composite heating conditioner can be performed.
II Noni can be done.

(2) Cooling of the sensor itself, bubbles, and heating chamber C1
Exhaust air to be discharged outside the main unit can be as low as 1.# - This increases the safety of the appliance - C is 3° (
3) By cooling the sensor, the ten/Lee surface 1 durability μ=
Reliability can be increased.

[Brief explanation of the drawing]

Figure 1 shows an example of -1, failure IIJJ)! :r
Partially torn exterior perspective view of I'i n heating jlAl j"1 vessel, Figure 2.
Figure 3 is a cross-sectional view of the flat part IZ' and Figure 4 (l-
Fig. 6 is a side cross-sectional view of the main part which is an embodiment of the song of the invention. 2... Heating chamber, 6... Magnetron,
6... Cooling 7.・), 8...Blower duct, 1o...Humidity sensor 111...
・Name of edge J''-0 agent fl''1Il11゛ Toshio Nakao and one other person Figure 1 Figure 2 Figure 6 Condolence 3 Figure 1q7/ρ / , 5 Ge

Claims (1)

[Claims] A heating chamber that stores the object to be heated, and the IJ11 heating chamber (.
(A high-frequency oscillator that supplies high-frequency power, a heating means that heats the inside of the heating chamber, and a radiator, a filter, and a cooling JJ at the high part θ.
A cooling fan that detects I and lAr' in the heating chamber is adjusted to
L FIJ number of sensors are provided, and a small number of the sensors (
, l-mo 1-J, a composite heating cooking device is provided with an air duct for guiding the air 4 of the cooling fan on the end r side of the sensor.