JPH0525540Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a rice cooker used in general households.

BACKGROUND ART A conventional rice cooker of this type was constructed as shown in FIG. That is, in this FIG. 3, 1 is a cylindrical rice cooker body, 2 is a heating element for rice cooking, and is provided at the inner bottom of the outer pot 3. A temperature sensor 4 is attached to the center of the outer pot 3, and a notch 3a for dripping water is provided in the center of the outer pot 3. Reference numeral 5 denotes a heat shield plate having a flat shape or a shape close to it.
A through hole 5a for dripping water is provided below.

Problems to be Solved by the Invention In such a conventional configuration, if a user accidentally pours water into the outer pot 3, the water will flow through the water dripping notch provided in the center of the outer pot 3. Water flows onto the heat shield plate 5 from the portion 3a, but in this case, since the shape of the heat shield plate 5 is flat or close to a flat shape, not all of the water flows from the through holes 5a, and as a result, There is a risk that water droplets may adhere to the heating element terminal 2a for rice cooking, which is a live part, or water may reach the heat insulating material 7 located around the heat shield plate 5, resulting in poor insulation. Ta. Further, if the water disperses and drips, there is a high possibility that the water will enter the bottom circuit board 8, and there is a risk that the electronic components may be destroyed or shot.

Furthermore, if the rice cooker body 1 is tilted,
There was a problem in that the water that was poured had a flow velocity, which made the above-mentioned danger even higher. In this case, these risks can be reduced by increasing the diameter of the through holes 5a of the heat shield plate 5, but in this case, the heat shielding effect will deteriorate, so
The diameter of this through hole 5a is preferably as small as possible.

The purpose of the present invention is to provide a rice cooker that solves these problems.

Means for Solving the Problems In order to solve the above problems, the present invention provides an outer pot with through holes for dripping water, and a heat shield plate attached to the bottom of the outer pot has the through holes. An upward convex portion is provided on the ring so as to have a diameter larger than that of the through hole, and a through hole for dripping water is provided inside the ring-shaped convex portion. It is something.

Effect According to the above configuration, even if the user accidentally pours water into the outer pot, the water will fall onto the heat shield plate through the through holes provided in the outer pot, and then the water will fall onto the heat shield plate. The water will flow to a predetermined position (a previously set location with no electrical problems) through the provided through hole. In this case, since the ring-shaped upward convex part acts as a weir, water does not flow into the heating element terminal for rice cooking or the heat insulating material, and the insulation performance is maintained. In addition, even if the rice cooker is tilted, this can be prevented by the height of the convex part, and the diameter of the through holes provided in the heat shield plate can also be made smaller, reducing the heat shielding effect. Not really. At the same time, since the ring-shaped convex portion also serves as a reinforcing rib, the bending strength of the heat shield plate can be improved.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, 11 is a cylindrical rice cooker main body, and an outer pot 12 is attached to the inside of this main body 11 via an upper frame 13.
2 is provided with a through hole 12a for dripping water droplets.
14 is a heating element for rice cooking attached to the inner bottom of the outer pot 12, and this heating element 14 for rice cooking is provided with a terminal 14a. Reference numeral 15 denotes an inner pot removably placed on the heating element 14 for cooking rice, and is made of a material with good thermal conductivity. Reference numeral 16 denotes an inner lid that covers the upper opening of the inner pot 15. This inner lid 16 is covered with an outer lid 17, and a heat-retaining heating element 18 is provided around the entire upper side surface of the outer pot 12.
has been set up. 19 is a heat insulating material interposed between the cylindrical rice cooker main body 11 and the outer pot 12; 20 is a box-shaped display board; this display board 20 has a plurality of push button switches 21, a display 22, etc. A circuit board 23 is housed inside. The operation signal from the circuit board 23 is transmitted to the bottom circuit board 25 via the lead wire 24. 26 is a sensor that comes into contact with the bottom of the inner pot 15 to detect the temperature of the inner pot 15. Reference numeral 27 denotes a heat shield plate attached to the outer bottom of the outer pot 12, and the heat shield plate 27 has a hole located below the through hole 12a provided in the outer pot 12 and has a diameter larger than that of the through hole 12a. An upward convex portion 27a is provided in a ring shape so as to have an upwardly extending convex portion 27a, and a through hole portion 27b for dripping water is provided inside the ring-shaped convex portion 27a. The through hole 27b is set at a position where there is no electrical problem even if water drops drop downward. A synthetic resin lower frame 29 is attached to the lower opening of the rice cooker main body 11, and a cord reel 28 is fixed to the lower frame 29.

Effects of the invention As described above, according to the invention, even if the user accidentally pours water into the outer pot, the water will fall onto the heat shield plate through the holes provided in the outer pot, and It is configured so that it flows down from a through hole provided in the heat shield plate to a predetermined position (a preset location where there is no electrical problem).In this case, the heat shield plate has a Since the ring-shaped upward convex portion located at the top acts as a weir, water does not flow into the terminals of the heating element for rice cooking or the heat insulating material, and insulation performance can be maintained reliably. In addition, even if the rice cooker is tilted, this can be prevented by the height of the ring-shaped upward protrusion, and the diameter of the through holes in the heat shield plate can be made small, making the heat shield effective. Since the ring-shaped convex portion also serves as a reinforcing rib, the bending strength of the heat shield plate can be improved.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view of a rice cooker showing an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of a main part of the rice cooker, and FIG. 3 is a cutaway side view of a conventional rice cooker. 11...Main body, 12...Outer pot, 12a...Through hole, 14...Heating element for rice cooking, 27...Heat shield plate, 2
7a...Convex portion, 27b...Through hole.

Claims (1)

[Scope of utility model registration request] It has a cylindrical main body, a bottomed cylindrical outer pot in which a heating element for cooking rice is disposed at the inner bottom and a temperature sensor is disposed, and a heat shield plate attached to the bottom of the outer pot. , the outer pot is provided with a through hole for dripping water droplets, and the heat shield plate has an upward ring-shaped protrusion located below the through hole and having a larger diameter than the through hole. What is claimed is: 1. A rice cooker characterized in that a through hole for dripping water is provided inside the ring-shaped convex portion.