JPH0330719A - Cooking instrument - Google Patents

Abstract

PURPOSE:To obtain a cooking instrument excellent in moisture resistance, servicing property, and re-using property by pressure-fitting a soft rubber piece in a space between a channel section set on an external cover member, and a rib set on a cover member, and by thrusting a lead wire connected to a circuit substrate, through a penetration hole set on the cover member, to seal the penetration hole. CONSTITUTION:The full peripheries of the display plate sections 44 and display plate cover 38 of an external cover 34 are sealed with a display plate packing 46, and a lead wire 51 connected to a circuit substrate 42 is thrust through a penetration hole 50 set on the display plate cover 38, and is sealed with a cap 52 and a cap seal 55. For the cap seal 55, a soft butyl rubber piece is used, and so the butyl rubber piece is to be set also into a space between the lead wires 51, and sufficient sealing performance can be obtained. Besides, heating steam or the like to be infiltrated into the external cover 34 can be prevented from being infiltrated into the display plate cover 38.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to cooking utensils, such as rice cookers, used in general households.

BACKGROUND OF THE INVENTION Conventional lids for cooking utensils of this type have been developed, for example, by
As shown in Japanese Patent No. 57323, the configuration was as shown in FIG.

That is, in FIG. 2, 1 is a cooking utensil main body, a pot 2 is installed inside this cooking utensil main body 1, and a lid body 3 is provided so as to be openable and closable via a hinge mechanism. The lid 3 is composed of an outer lid 4, a lid cover 6 having an inner plate 6 attached to its inner surface, and a handle 7 provided on the outer lid 4. Reference numeral 8 denotes an engaging protrusion, which is provided to protrude from the inner plate 6.

Reference numeral 9 denotes an inner lid that is engaged and held by the engaging protrusion 8 .

1o is a lid heater, and this lid heater 1o is provided at the center of the inner plate 6, is biased by a spring or the like so as to come into contact with the inner cover 9, and is loosely inserted into the center hole of the inner plate 6. Reference numeral 11 denotes an operation section, which is provided inside the lid body 3. This operation section 1
1, 12 is a waterproof wall, and this waterproof wall 12 is connected to the inner plate 5.
The lid cover 6 is installed vertically on the wall 12 and
An electrical component room 13 is partitioned and formed inside. Reference numeral 14 denotes a circuit board having a switch 16 for operation, a display 16 for display, and an electronic component 17. This circuit board 14 is housed in the electrical component compartment 13 and is provided to protrude downward from the outer cover 4. It is fixed to a plurality of boss parts with screws 18 or the like.

Further, the switch 16 and the display 16 face into openings 19 and 20 formed in the outer wall 4, respectively.

Reference numeral 21 denotes a display sheet, and this display sheet 21 is attached to the outer lid 4 with double-sided adhesive tape or the like so as to cover the openings 19 and 20.

Problems to be Solved by the Invention However, in such a conventional configuration, the electronic component 1
The periphery of the electrical component room 13 housing the circuit board 14 on which the circuit board 7 is arranged must be sealed with moisture-impermeable material such as EP rubber. When the wire passes through the rubber, a slight gap is created between the wire and the lead wire, and this gap may allow moisture in the air or heated steam from cooking to enter, which can damage electronic components. There was a risk that

In addition, if the lead wires are sealed with moisture-impermeable and soft butyl rubber instead of the FP rubber, the lead wires can be sealed, but on the other hand, once assembled, they are difficult to remove and cannot be reused. However, butyl rubber adheres to the parts.
It was difficult to reuse.

The present invention solves these conventional problems, and aims to provide cooking utensils that have excellent moisture resistance, serviceability, and reusability.

Means for Solving the Problems In order to solve the above problems, the present invention includes an outer shell member of a cooking utensil main body, a cover member fitted to the outer shell member, and an electronic device housed inside the cover member. It comprises a circuit board having components and a heating element housed inside the cover member, and is crimped with an EP rubber or the like interposed between a groove provided in the outer shell member and a rib provided in the cover member, A lead wire connected to the circuit board is passed through a passage hole provided in the cover member, and the ventilation hole is sealed to seal the inside of the cover member.

Effect With this configuration, the entire circumference of the cover member housing the circuit board is sealed with, for example, HP rubber, and the lead wire passing portion is sealed with, for example, butyl rubber, so that the inside of the cover member is sealed. The inside of the member is not located in a still air layer, and as a result, it is less susceptible to the adverse effects of surrounding humidity, heat, etc., and quality can be improved. Further, even if dew condensation occurs within the cover member due to a change in room temperature, etc., the moisture can be blown away by energizing the heating element, and clouding of the display section can be prevented.

Furthermore, since butyl rubber is used only locally, the area of butyl rubber adhering to parts can be minimized, and therefore reusability and serviceability after assembly and disassembly can be improved.

EXAMPLE A first example of the present invention will be described below with reference to FIG.

In FIG. 1, 31 is a cooking utensil main body, and a pot 32 is removably installed inside this cooking utensil main body 31. 33
is a lid body which is rotatably supported on one side of the top opening of the cooking utensil body 31 and covers the top opening; It is constituted by a lid body cover 36. 36 is a handle portion provided on the outer lid 34;
6 is provided with a handle cover 37 that covers the top surface. Reference numeral 38 denotes a display board cover that houses a circuit board 42 having an operating switch 39, a display 4o, and an electronic component 41 therein. EP rubber is installed between the groove portion 43 provided in the display panel cover 38 and the inner top surface of the display panel portion 44 of the outer lid 34, or between the display panel gasket 4
6, and is tightened and fixed by a screw 47.

A heating element 48 is fixed to the outer cover 34 by a support fitting 49.

Reference numeral 60 denotes a passage hole through which a lead wire 51 connected to the circuit board 42 of the display board cover 38 is passed, and a lower opening thereof is covered with a cap 52. The cap 62 is provided with a groove 53, and the display board cover 38 is provided with a groove 53.
Ribs 64 corresponding to No. 3 are arranged in parallel, and butyl rubber is interposed as a cap seal 66, which is fastened and fixed with a screw.

66 is a film-like display sheet, and this display sheet 66
is attached with double-sided adhesive tape or the like so as to cover the opening 6T provided in the display panel section 44 at a position corresponding to the display 40 section and the switch 39 section.

Next, the operation of the configuration shown in FIG. 1 will be explained.

The display board portion 44 of the outer lid 34 and the display board cover 38 are sealed all around by a display board gasket 46, and the lead wire 61 connected to the circuit board 42 is provided on the display board cover 38. It passes through the passage hole 6o and is sealed by a cap 62 and a cap seal 56. Since the cap seal 56 uses soft butyl rubber, the butyl rubber also enters the gaps between the lead wires 61, and as a result, it is possible to obtain sufficient sealing performance.

Further, the opening 67 of the display panel section 44 is covered with a display sheet 66. Therefore, the interior of the display board cover 38 that houses the circuit board 42 can be kept in a sealed state with a still air layer, resulting in low thermal conductivity and high heat insulation. Moreover, since rubber is used that is impermeable to moisture, it is possible to prevent heated steam and the like from entering the outer cover 34 from entering the display panel cover 38.

Further, by energizing the heating element 48, the moisture can be blown off to prevent the display sheet 66 from fogging up even when condensation occurs inside the display board cover 38 due to a change in room temperature or the like.

Effects of the Invention As is clear from the description of the above embodiments, according to the present invention,
It is possible to ensure sufficient sealing performance against moisture such as heated steam, and it is also possible to obtain a heat insulating effect, so it is possible to minimize the effect on the circuit board and improve quality. At the same time, it is possible to prevent condensation caused by changes in room temperature, etc.

In addition, since butyl rubber is only used locally, it is relatively easy to reuse after assembly and disassembly.
This makes it possible to improve serviceability.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of a cooking utensil according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a conventional cooking utensil. 31... Cookware main body, 38... Cover member (display board cover), 41... Electronic components,
42... Circuit board, 43... Groove, 4
4... Outer shell member (display board part), 46...
・Rib, 46...Rubber (display board packing), 4
8... Heating element, 6o... Passing hole, 51
...Lead wire, 52 ...Cap, 6
3... Groove, 54... Rib, 56...
...Rubber (cap seal).

Claims (1)

[Claims] An outer shell member of a cooking utensil main body, a cover member that fits into this outer shell member, a circuit board that is housed inside this cover member and has an electronic component, and a heating element that is housed inside the cover member. The groove or rib provided on the outer shell member and the rib or groove provided on the cover member are pressure-bonded with a moisture-impermeable and soft rubber interposed therebetween, and the circuit board is bonded to the circuit board. A cooking utensil in which a lead wire to be connected is passed through a passage hole provided in a cover member, and the passage hole is sealed to seal the inside of the cover member.