JPH10192134A - Electric rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent steam from dispersing in the atmosphere by laying a steam passage for communicating an inner pot removably housed in a housing case to a water vessel laid at one side of a frame, introducing steam generated in the inner pot to the water vessel through the steam passage and then liquefying the steam via the contact of water. SOLUTION: When an inner pot 9 is heated via a heating plate 6 at the time of cooking rice, both of water and rice are heated to a high temperature level, and the inner pot 9 is gradually filled with steam. When the internal pressure of the inner pot 9 is below the preset pressure level, however, a ball 28 does not move and no steam is released. When a cooking process develops and the internal pressure of the inner pot 9 rises to the preset level, the ball 28 moves and the pressurized steam in the inner pot 9 flows into an introduction pipe 25. Thereafter, the pressurized steam enters one chamber 15 of a water container 13 from the introduction pipe 25 via a guide pipe 19, and changes to bubbles through a net material 18. Then, the bubbles rise from another chamber 16 of the vessel 13 in contact with water. In this case, high temperature steam is cooled and liquefied with water, and stagnates in the chamber 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electric rice cooker such as a jar rice cooker.

[0002]

2. Description of the Related Art An electric rice cooker is disclosed in Japanese Unexamined Patent Publication No. Hei 2-30551.
As can be seen in Japanese Patent Publication No. 8 (1993), the lid is provided with a steam hole for releasing steam generated from inside the pot during cooking to the atmosphere.

[0003] The vapor is released for the following reasons.

[0004] Rice and water stored in the pot are heated by a heat source (heater), and as the rice cooks, the water evaporates and the pressure in the pot increases.

[0005] If the steam in the pot is not released into the atmosphere at this time, the pressure in the pot further increases, which is extremely dangerous, and this steam is released from the steam holes provided in the lid. Like that.

[0006]

However, with the release of steam from the steam holes, the humidity in the room increases, so that the aging of the ceiling and wall materials is accelerated, and electric appliances such as microwave ovens and the like are placed nearby. There is a danger that the insulation will deteriorate.

[0007] The present invention liquefies the steam released from the pot during cooking to prevent the steam from scattering into the atmosphere.

[0008]

SUMMARY OF THE INVENTION The present invention comprises a frame,
A storage case provided in the frame, an inner pot storably provided in the storage case, an openable / closable lid covering the inner pot, a water container provided on one side of the frame, A steam passage communicating between the inside of the pot and the water container is provided, and steam generated from the inside of the inner pot is introduced into the water container through the steam passage and liquefied by contact with water.

Further, the steam passage is constituted by a pipe having one side opened to the lid so as to face the inner pot and the other side communicating with the water container, and a part of the pipe has an inner pot. A pressure valve for opening a passage according to the vapor pressure in the inside is provided.

Further, the pipe comprises an introduction pipe provided on the lid and a guide pipe provided inside the frame, and when the lid is closed, the introduction pipe and the guide pipe communicate with each other to open the lid. Sometimes, the upper end of the guide pipe is opened, and the dew attached to the back surface of the lid is received from the opening.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial sectional view of the electric rice cooker of the present invention,
FIG. 2 is a partial cross-sectional view when the lid is opened, and FIG. 3 is a partial cross-sectional view showing a state where dew flows when the lid is opened.

(1) A rice cooker main body, a frame (3) made of synthetic resin and integrally provided with receiving portions (2) and (2) at upper and lower portions of an outer wall, and a bottomed bottom provided in the frame. A storage case (4) made of a cylindrical pot, a heating plate (6) having a heater (5) fixed to the inner bottom of the storage case, and an upper opening provided so as to be freely stored in the storage case (4). An inner pot (9) provided with a flange (8) on the periphery of the portion (7).

Reference numeral (10) denotes a synthetic resin frame cover in which the upper edges of the frame (3) and the storage case (4) are engaged and fixed. The cover (21), which will be described later, is on the hinge shaft (11) side. The receiving hole (1
2) is provided.

(13) A water container in which engaging portions (14) and (14) are integrally provided at upper and lower portions of one side wall, and the engaging portions are detachably attached to the receiving portions (2) and (2). On the inner side, a partition plate (1) is vertically partitioned into two chambers (15) and (16).
7) and a net member (18) attached between the lower end of the partition plate and the bottom wall.

A guide pipe (19) is provided between the frame (3) and the storage case (4), and has an upper end fixed in the receiving hole (12) in a trumpet shape and a lower end in the frame (3).
To communicate with one chamber (15) of the water container (13). The communication between the lower end and the one chamber (15) is made by the rubber receiving portion (20) on the wall of the water container (13) on the one chamber (15) side.
When the water container (13) is mounted on the frame (3), the lower end of the guide pipe (19) engages with the rubber receiving portion (20) to communicate therewith.

(21) One side of the frame cover (1)
0) A lid body which can be opened and closed by a hinge shaft (11), and an outer lid (22), and an inner lid (24) in which a ring-shaped packing (23) is fitted to the lower edge of the outer lid and to the periphery. It is composed of

Reference numeral (25) denotes an introduction pipe provided in the outer lid (22). One side faces the inner pot (9) through the pressure valve (26) and the inner lid (24), and the other side. Is extended from the lower surface of the inner lid and opened, and a rubber packing (2
7) is engaged.

The pressure valve (26) suppresses the outflow of steam until the inside of the inner pot (9) reaches a predetermined pressure, and moves when the predetermined pressure is reached, to move the steam in the inner pot (9) into the introduction pipe ( 2
5) A ball (28) to be fed into the apparatus is provided.

Next, the operation will be described. First, the inner pan (9) containing water and rice is stored in the storage case (4) and placed on the upper surface of the hot platen (6).

Subsequently, when the lid (21) is closed, the ring-shaped packing (23) comes into close contact with the flange (8),
The ball (28) in the pressure valve (26) closes the passage in the introduction pipe (25) by its own weight, and the other side of the introduction pipe (25) is connected to the guide pipe (19) as shown in FIG. Rubber packing (2
The peripheral wall of 7) is in close contact with the inner wall of the guide pipe (19). A steam passage (29) is formed by the communication between the guide pipe (19) and the introduction pipe (25).

Of course, in the above-described rice cooking preparation state, the engaging portions (14) and (14) of the water container (13) in which water is previously stored in one chamber (16) having a large capacity are connected to the receiving portion of the frame (3). (2)
(2), and connects the lower end of the guide pipe (19) to one chamber (15) of the water container (13).

Then, the heater (5) is energized and the hot platen (6)
When heat is generated and the inner pot (9) is heated, water and rice are heated to a high temperature, and the inner pot is gradually filled with steam, but the pressure in the inner pot (9) does not reach a predetermined pressure. The ball (28) does not move and no vapor is released.

When the rice cooks and the temperature of the inner pot reaches near the boiling temperature, the pressure in the inner pot (9) rises and when the pressure reaches a predetermined pressure, the ball (28) moves and the inner pot (9) moves. ) Flows into the inlet pipe (25). (Figure 1
This vapor enters the one chamber (15) of the water container (13) from the introduction pipe (25) via the guide pipe (19) and becomes bubbles by the net material (18), and the vapor in the other one chamber (16). Rises while touching water. At this time, the high-temperature steam is liquefied because it is cooled by water, and accumulates in the other chamber (16).

Thus, when the cooking is completed and the lid (21) is opened, the dew adhered to the lower surface of the inner lid (24) during the cooking of rice is moved along the lower surface of the inner lid by the hinge shaft (11). It moves to the side, is guided by the ring-shaped packing (23), is received from the upper end of the guide pipe (19), and is stored in the water container (13). (See FIG. 3) It is desirable that the opening at the upper end of the guide pipe be formed wide, and the opening at the lower end of the guide pipe communicates as high as possible with the water container.

[0025]

As described above, according to the present invention, the steam generated from the inner pot is introduced into the water container through the steam passage to be liquefied. There is no need to worry about aging of the material or insulation deterioration of other electric appliances.

Further, a pressure valve is provided in the steam passage so as to open according to the pressure in the inner pan.
From the time when the pressure in the inner pan does not rise, the steam does not adhere to the inner wall of the pipe and solidify until the steam reaches the water container through the steam in the steam passage.

That is, when the inside of the inner pot reaches a predetermined pressure, the steam vigorously flows into the water container by the pressure, so that the tongue does not adhere to the inner wall of the pipe.

Further, the pipe is constituted by an introduction pipe for the lid and a guide pipe for the frame. When the lid is opened, the dew attached to the lower surface of the lid is guided to the guide pipe and accumulated in the water container. It can serve as both a dew receiver and a vapor liquefaction container.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of an electric rice cooker according to the present invention.

FIG. 2 is a partial sectional view when the lid is opened.

FIG. 3 is a partial sectional view showing a state in which dew flows when the lid is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice cooker main body 3 Frame 4 Storage case 9 Inner pot 13 Water container 19 Guide pipe 21 Lid 25 Introducing pipe 26 Pressure valve 29 Steam passage

Claims (3)

[Claims] 1. A frame, a storage case provided in the frame, an inner pot storably provided in the storage case, an openable / closable lid for covering the inner pot, and one side of the frame. The provided water container, comprising a steam passage communicating the inside of the inner pot and the water container, the steam generated from the inner pot is introduced into the water container through the steam passage and comes into contact with water A liquefied electric rice cooker. 2. The steam passage is constituted by a pipe having one side opened to a lid so as to face an inner pot and the other side communicating with the water container, and a part of the pipe has an inner pot. The electric rice cooker according to claim 1, further comprising a pressure valve that opens a passage according to a steam pressure in the inside. 3. The pipe comprises an introduction pipe provided on a lid and a guide pipe provided inside a frame. When the lid is closed, the introduction pipe communicates with the guide pipe to open the lid. Sometimes open the upper end of the guide pipe,
The electric rice cooker according to claim 2, wherein the opening receives dew attached to the back surface of the lid.