JPH0572209B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cooking appliance such as a rice cooker used in general households.

BACKGROUND ART A conventional cooking device of this type had a structure as shown in FIG.

That is, a temperature sensor 1 made of a thermal reed switch or the like is fastened to the tip of a sensor mounting bracket 2 with a screw 3.

The temperature sensor 1 detects the heat from the heat-retaining heating element 5 attached to the entire circumference of the upper side of the outer pot 4,
In order to keep the temperature of the contents of the inner pot 6 constant, energization to the heat-retaining heating element 5 is controlled.

However, although the temperature sensor 1 detects the temperature of the outer pot 4 that has received heat from the heat-retaining heating element 5,
It is also affected by the temperature of the sensor mounting bracket 2.

Problems to be Solved by the Invention In such a conventional configuration, since the temperature sensor 1 of the sensor mounting bracket 2 is affected by room temperature, etc., it is difficult to control the temperature of the contents of the inner pot 6 from the influence of room temperature, etc. There was a problem that it was not possible to maintain a constant level without receiving any damage.

The present invention solves these problems,
The purpose is to maintain the temperature of the contents of the inner pot at a constant level without being affected by room temperature, etc.

Means for Solving the Problems In order to solve the above conventional problems, the present invention has the following features:
The tip of the sensor mounting bracket that attaches the temperature sensor is extended to the position where the heat-retaining heating element is attached.

Effect According to this configuration, the sensor mounting bracket reaches close to the heat-retaining heating element, so the heat from the heat-retaining heating element is transmitted to the mounting bracket, and the temperature sensor attached to it is transferred from the outer pot. At the same time as the heat received, heat is also supplied from the heat-retaining heating element, so
It is capable of keeping the temperature of the contents of the inner pot constant without being affected by room temperature, etc.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, 11 is the main body of the cooker, 12 is an outer pot attached to the inside of the main body 11 via a heat insulating frame 13, 14 is a heating element provided at the inner bottom of the outer pot 12, and 15 is the top of the heating element 14. The inner pot is removably placed in the outer pot 12 and is installed in the outer pot 12 in a detachable manner. 16 is a lid that covers the upper opening of the inner pot 15; 17 is a heat-retaining heating element attached to the entire circumference of the upper side of the outer pot 12; 18 is a heat insulating material interposed between the main body 11 and the outer pot 12; 19 is a cooking temperature sensor that comes into contact with the bottom of the inner pot 15 to detect the temperature.

Reference numeral 20 denotes a temperature sensor such as a thermal reed switch that detects the temperature of a heat-retaining device in contact with the outer surface of the outer pot 12, and is fastened to the sensor mounting bracket 22 with a screw 21.

This sensor mounting bracket 22 is fastened to the bottom of the outer pot 12 with a screw 23 together with a terminal base 24 for relaying wiring.

The tip of the sensor mounting bracket 22 extends to the vicinity of the heat-retaining heating element 17.

As is clear from the above configuration, in the embodiment of the present invention, the temperature sensor detects the temperature of the side surface of the outer pot 6, and at the same time, the tip of the sensor mounting bracket 2 is located near the heat-retaining heating element 17. The tip receives radiant heat from the heating element 17 for heat retention,
This heat is transmitted to the mounting part of the temperature sensor 20,
Heat will be supplied to this temperature sensor 20.

Since the attachment part of the sensor mounting bracket 22 to the outer pot 12 is located further away from the heating element 17 for heat retention, the temperature of the sensor attachment bracket 22 is easily affected by the atmosphere such as room temperature when keeping warm. Since the temperature sensor 20 is supplied with heat received by radiation from the heat-retaining heating element 17, the temperature sensor 20 is not easily affected by room temperature.

Effects of the Invention As described above, according to the present invention, the heat supplied from the heat-retaining heating element is transmitted to the temperature sensor mounting portion of the sensor mounting bracket, so that the temperature sensor is not affected by room temperature, etc. , the temperature of the contents of the inner pot can be kept constant.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view of a cooking device according to an embodiment of the present invention, FIG. 2 is a perspective view of the same essential parts, and FIG. 3 is a partially cutaway sectional view of a conventional cooking device. 12...Outer pot, 14...Heating element, 15...Inner pot, 17...Heat heating element, 20...Temperature sensor, 22...Sensor mounting bracket.

Claims (1)

[Claims] 1. an outer pot, a heating element provided at the inner bottom of the outer pot, and an inner pot removably placed on the heating element;
A heat-retaining heating element disposed on the side surface of the outer pot, a temperature sensor located on the side surface of the outer pot, and a sensor mounting bracket to which the temperature sensor is attached; The cooking device has a structure in which the heating element is extended to the vicinity of the heating element for heating, and the extended portion covers a part of the heating element for keeping heat.