JPS58150723A - Heating cooker - Google Patents

Abstract

PURPOSE:To reduce the number of installing processes of heat insulating members to improve an assembly efficiency, and to prevent leakage of exhaust gas from an exhaust duct, by a method wherein the heat insulating member is installed on the upper plate of a heating chamber, the one end of the insulating member is secured by a clamping part monolithically united with the exhaust duct, and the other end is fastened by a different clamping metal. CONSTITUTION:A first main exhaust duct 2 and a second auxiliary exhaust duct 3 are connected to a heating chamber 1. A temperature sensor 4 or a humidity sensor 5 are mounted on the auxiliary exhaust duct 3, exhaust gas flowing therethrough joins the main exhaust duct 2, and is exhausted to the outside of a cooker. The main exhaust duct 2 is connected to a housing chamber 7 of a blast circulating fan 6 to exhaust a part of hot blast through a main exhaust port 8. A gas burner 9 is located below the housing chamber 7. An upper plate 10 of the heating chamber 1 is thermally insulated with an insulating member 12 since an upper case 11 is also heated to high temperature. One side of the insulating member 12 is monolithically connected to one side of the auxiliary exhaust duct 3, and is secured by a clamping part 3a. Namely, the auxiliary exhaust duct 3 is fastened by a screw 13, and the insulating member 12 is also secured by the screw 13. The other side is fastened by a clamping metal 15 secured by a screw 14.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating cooker such as a microwave oven or a composite cooker that integrates a microwave oven and a gas oven.

For example, in conventional composite cookers, in order to fix a heat insulating material such as glass wool on the top plate of the heating chamber, the entire end was covered with an aluminum root and held down with a specially designed fastener. In addition, the exhaust duct protruding from the top plate used a special gasket to prevent exhaust air. This was not only difficult to assemble, but also uneconomical, and there was hope for improvement.

The present invention solves the above-mentioned conventional drawbacks, and aims to improve the combination structure of the fixing of the heat insulating material and the gasket of the exhaust duct, improve the ease of assembly, and prevent the exhaust from the exhaust duct. .

In order to achieve the above object, the heating cooker of the present invention is provided with a heat insulating material on the top plate of the heating chamber, one end of the heat insulating material is integrally formed with the entire exhaust duct, and the other end is fixed with a holding part. The structure is such that the parts are fixed with other holding fittings, which reduces the number of steps required to install the heat insulating material, improves the ease of assembly, and prevents the exhaust duct from collapsing.

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

In the figure, a first main exhaust duct 2 and a second sub-exhaust duct 3 communicate with a heating chamber 1 of the composite heating cooker.

Temperature sensor 4 or humidity sensor 6 is installed in sub-exhaust duct) 3.
The exhaust gas passing through these sensors joins the main exhaust duct 2 and is discharged outside the device from there. The main exhaust duct 2 communicates with the accommodation chamber 7 of the hot air circulation fan 6, and a portion of the hot air is discharged from the main exhaust port 8. A gas burner 9 is provided below the storage chamber.

For example, when the upper surface plate 10J of the heating chamber 1 is opened to the gas and the set temperature is 300'C, the temperature rises to a considerable extent, and the temperature up to the upper case 11 of the main body case becomes high. A heat insulation material 12 such as the above is provided. One side of this heat insulating material 12 is fixed to one side of the sub-exhaust duct 3 by a holding part 3a which is integrally connected to the side. That is, although the sub-exhaust duct 3 is fixed with the screw 13, the heat insulating material 12 is also fixed with the screw 13 at the same time. The other side is fixed with a screw 14 and a presser metal fitting 16.
ing.

With this configuration, the number of man-hours required for fixing the heat insulating material 12 is reduced, and the ease of assembly is greatly improved.

As described above, according to the present invention, (1) One end of the sub-exhaust duct placed at the upper end of the heating chamber can be fastened together with the heating chamber, but the other end has screws etc. protruding into the heating chamber. Because of this, it is difficult to fix and tends to float up.For this reason, in the past, the exhaust also generated n, etc., but in the case of this proposal, since the heat insulating material such as glass wool is suppressed, the exhaust also has the effect of preventing it from floating. .

(2) The end face of the heat insulating material has a tendency to fall apart easily and scatter, but by fixing one end as in the present proposal, it becomes less likely to be damaged.

[Brief explanation of drawings]

FIG. 1 is a partial sectional external perspective view of a composite heating cooker according to an embodiment of the present invention, FIG. 2 is a side sectional view of the same, and FIG. 3 is a front sectional view of the main part of the same. 1... Heating chamber, 3... Sub-exhaust duct,
3 &... Pressing part, 12... Insulating material, 1
6... Presser metal fittings. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] A heating system in which a heat insulating material is provided on the top plate of the heating chamber, one end of the heat insulating material is fixed with a holding part formed integrally with an exhaust duct, and the other end is fixed with another holding fitting. Cooking device.