JP2000201812A - rice cooker - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a rice cooker that is more compact than the conventional one and does not cause condensation on the inner surface of the display unit. SOLUTION: An operation plate 13 and a concave portion 3 are provided in an outer lid.
4a together with a closed space, and the operation board 3
3 and the hygroscopic material 52 are incorporated from the outside of the outer lid, and finally the operation plate 13 is attached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker used for ordinary households.

[0002]

2. Description of the Related Art Conventionally, this type of rice cooker has a configuration as shown in FIGS. 3 and 4, for example. In the figure,
A pot 1 is detachably stored in the rice cooker main body 2. Below the pot 1 in the rice cooker main body 2, a heating coil 7 for inductively heating the pot 1 and a heating substrate 8 for controlling heating are provided. The lid 3 covers the upper opening of the rice cooker body 2 so as to be openable and closable, the lower surface is covered with an outer lid cover 4, and a heating plate 5 is provided on the lower surface of the pan 1 side. Is provided with an annular pot packing 6 having a U-shaped cross section and abutting on the flange portion 1 a of the pot 1.

The lid 3 has a curved shape and a central portion that is thicker and thinner toward the outer edge for the sake of design and thickness reduction. The upper frame 3a that rotatably supports the lid 3 is substantially formed. It has a moisturizing cap 14 at the center and is arranged to discharge steam out of the main body. Also, a steam port 15 for discharging steam
And a liquid crystal support plate 20 provided therein.
A liquid crystal panel 17 supported by the camera, a horseshoe-shaped operation board 10 provided with operation buttons 18 and a lead wire at the rear,
A lead wire 25 having a concave shape with a bottom for storing the operation board 10
Is formed by an outer lid 9 forming a concave portion 22 provided with a lead-out port 21 for wiring.

Here, by providing a concave portion 22 for accommodating the operation board 10 in the outer lid 9 constituting the upper surface of the lid body 3,
The operation board 10 can be attached to and detached from the outside of the lid 3, and the rigidity of the outer lid 9 is improved by matching the curved surfaces.

[0005] Further, the shape of the operation board 10 is made similar to the outer edge shape of the outer lid 9, and further, the vicinity of the steam port 15 is formed in a horseshoe shape with a depression, so that the steam port 15 is disposed substantially at the center of the lid 3. In addition, many operation buttons 18 can be arranged in a well-balanced and easy-to-use arrangement in front.
An annular IH coil 12 is provided around the steam port 15. The steam port 15 is provided with a steam plate packing 16 which is in contact with the heating plate 5 and the outer lid 3 and is configured to be sealed.
The drawer opening 21 is provided with a cover 11 that shields a space inside the concave portion where the operation board 10 is mounted inside the cover 3 and another space inside the cover 3. Reference numeral 12 denotes a heater for heating the heating plate 5, but may be an IH type using a heating coil.

The recess 22 of the outer lid 9 for storing the operation board 10
On the upper surface, a display plate 13 serving as an outer surface made of a resin material formed by bonding a film on which a film displaying the functions of the operation buttons 18 and the like is adhered to the outer lid 9 by adhesion with a water-resistant double-sided tape 24. Have been. The double-sided tape 24 can prevent water from entering the inside of the lid from the outside. A sensor 23 for detecting the presence or absence of the heating plate 5 is fixed to the recess 22. The presence or absence of the heating plate 5 is detected by the sensor 23.

[0007]

However, in the above-mentioned conventional rice cooker, the operation board absorbs moisture during the humid rainy season, etc., and this moisture evaporates due to the heating during the cooking of the rice, so that the inner side of the display portion having a low temperature is exposed. And the display is blurred.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to realize a rice cooker in which dew is formed on an inner surface of a display unit and the display is not blurred.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a concave portion provided in an outer lid, an operation board and a moisture absorbing material incorporated in the concave portion from outside the outer lid. ,
An operation plate for covering the recess from outside so as to make the inside of the recess a closed space.

[0010]

The invention according to claims 1 and 2 is characterized in that a recess provided in the outer cover, an operation board and a moisture absorbing material incorporated into the recess from outside of the outer cover, and the recess is provided. By providing an operation plate that covers the recess from the outside to make the inside a closed space, a rice cooker with dew condensation on the inside surface of the display unit and the display is not blurred was realized, and the usability was improved. The aim is to realize a compact rice cooker.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The same parts as those in the conventional example are indicated by the same numbers. As disclosed in the drawing, the feature of the present invention is to arrange a moisture absorbing material in the space of the outer lid, the operation unit, the arrangement of the control board and the temperature control unit, the operation unit and the outer lid and the temperature control unit, and, The present invention provides a compact rice cooker with good assemblability due to the gas assist molding of the outer lid and a reduction in the number of parts due to the elimination of the sensor 23 for detecting the presence or absence of the outer lid cover 4 and the heating plate 5.
The ingenuity will be described in order.

First, the operation plate 13a is attached to the outer lid 32 from outside of the outer lid 32 by bonding with a waterproof double-sided tape 24.
It is fixedly attached to. An outer lid 32 that covers the upper opening of the rice cooker main body 31 and a control board 33 that controls the rice cooker main body 31 are housed in the space 34. The outer lid 32 is formed by a simple press, that is, gas-assist molding, and as is well known in the art, a thick rib or a thick boss is directly
4 and can be configured to be free from sink marks and hard to deform. As a result, the outer cover 4
Is no longer needed. The outer lid 32 is rotatably supported by a hinge portion 36 of an upper frame 35, and is engaged with a hook lever receiving portion 40 of an inner lid support 39 by a tip catching portion 38 of a hook lever 37 on the other side of the hinge portion 36. Combine.

Reference numeral 41 denotes an inner lid support receiving portion that fits with the outer lid 32. Reference numeral 42 denotes a pot having an open top surface for storing a cooked item such as rice. There is a packing 44 which is sealed by a flange 43 on the outer peripheral edge of the upper surface of the pot 42. Packing 44
Is held between the inner lid support 39 and the inner lid 45. Packing 4
4, the inner lid support 39 and the inner lid 45 constitute an inner lid unit 46. If the inner lid unit 46 is not mounted on the outer lid 32, the distal end hooking portion 38 of the hook lever 37 disappears, so that the outer lid 32 cannot be closed. This allows
The sensor 23 for detecting the presence or absence of the inner lid becomes unnecessary. On the other hand, the inner lid 45 is provided with a hole 46 for passing steam. The steam is discharged outside the main body through the holes 46. 47
Is a radiator plate for supporting a heater 48 for heating the inner lid 46. A radiating plate packing 49 for sealing between the radiating plate 47 and the inner lid 45 is fixed. The heat sink 47
, An outer lid packing 50 for sealing between the outer lid 32 and the outer lid 32 is sandwiched. The dew on the inner lid 45 is blown off by heating the heater 48.

With the above structure, a closed space is formed in the outer lid by the operation plate and the concave portion, and the operation board and the hygroscopic material are incorporated from outside the outer lid, and finally the operation plate is mounted. Thus, the moisture in the operation board is absorbed by the moisture absorbing material, the humidity in the space is reduced, and no dew is formed on the inner surface side of the display unit.

In addition, by assembling the outer lid, the moisture absorbing material, and the operation plate at the end of the process in order of assembly, it is possible to prevent forgetting to insert the moisture absorbing material.

Further, since the operation board is made of a material having no hygroscopic property, the humidity in the operation board does not change from that at the time of assembling, and the relative vapor pressure rises with the temperature rise in the space, so that the relative humidity rises. Then, the humidity in the space is reduced, and dew condensation is prevented on the inner surface of the display.

[0017]

As described above, according to the first aspect of the present invention, the concave portion provided in the outer lid, the operation board and the moisture absorbing material incorporated in the concave portion from outside the outer lid are provided. And an operation plate that covers the recess from the outside so as to make the inside of the recess a closed space, so that moisture in the operation board is absorbed by the moisture absorbing material, humidity in the space is reduced, and the inner surface of the display unit is reduced. No condensation on the side.

Further, by assembling the outer lid, the moisture absorbent, and the operation plate at the end of the process in order of assembling, it is possible to prevent forgetting to insert the moisture absorbent, and furthermore, a sensor for detecting the presence or absence of the inner lid is provided. The number of parts can be reduced, the number of components can be reduced, and the rice cooker itself can be reduced, so that the portability and installation can be improved, and the number of assembly steps can be reduced. In particular, by reducing the thickness of the outer lid, compactness can be realized.

According to the second aspect of the present invention, since the operation board is made of a material having no hygroscopic property, the humidity in the operation board is saturated as the temperature rises in the space without changing during the assembly. By increasing the vapor pressure, the humidity in the space is relatively reduced, and there is an effect that dew condensation on the inner surface side of the display unit is prevented.

[Brief description of the drawings]

FIG. 1 is a main part plan view of a rice cooker according to one embodiment of the present invention.

FIG. 2 is a sectional view of an essential part of the rice cooker.

FIG. 3 is a sectional view of a main part of a conventional rice cooker.

FIG. 4 is a sectional view of an essential part of the rice cooker.

[Explanation of symbols]

 13a operation plate 33 operation board 34 space 34a recess 52 hygroscopic material

Claims (2)

[Claims] 1. A concave portion provided in an outer lid, an operation board and a moisture absorbing material incorporated into the concave portion from the outside of the outer lid, and a concave portion from the outside to make the inside of the concave portion a sealed space. A rice cooker comprising an operating plate for covering. 2. The rice cooker according to claim 1, wherein the operation board is made of a material having no hygroscopic property.