CN-122004644-A - Pressure type rice cooker

CN122004644ACN 122004644 ACN122004644 ACN 122004644ACN-122004644-A

Abstract

A pressure type rice cooker. The pressure cooker of the present disclosure includes a pot, a heating portion, and a lid. The cover body is provided with an inner cover, an outer cover and a pressure reducing valve. The inner lid has a fluid intake port communicating with the interior of the pan and is detachably attached to the outer lid so as to be capable of closing an upper opening of the pan. The outer cap has a steam discharge port communicating with an outside of the cap body, and a steam path communicating the fluid intake port with the steam discharge port is formed inside the outer cap when the inner cap is mounted to the outer cap. The pressure reducing valve is disposed in the steam path so as to be capable of opening and closing the fluid intake port. The inner lid includes a fluid guide tube provided around the pressure reducing valve and a rice water reservoir provided around the fluid guide tube. The fluid guiding cylinder guides the fluid flowing in through the fluid intake port toward the opposite wall of the outer cover. The rice water reservoir accumulates rice water separated from the fluid by being guided by the opposing walls.

Inventors

MURAKAMI TAKASHI
KAWAMURA NAOYA
SADAHIRA MASAFUMI
Yawata is good for will
Da Cun Tuo Kuang

Assignees

松下知识产权经营株式会社

Dates

Publication Date: 20260512
Application Date: 20251015
Priority Date: 20241111

Claims (11)

1. A pressure type rice cooker, wherein, The pressure type rice cooker comprises: a pot; a heating part configured to heat the pan, and A cover body which is configured to cover an upper opening of the pan in an openable and closable manner, The cover body is provided with an inner cover, an outer cover and a pressure reducing valve, The inner cover has a fluid intake port communicating with the inner space of the pan, is detachably attached to the outer cover so as to be capable of sealing the upper opening of the pan, The outer cap has a steam discharge port communicating with an outside of the cap body, a steam path communicating the fluid intake port with the steam discharge port is formed inside the outer cap when the inner cap is mounted to the outer cap, The pressure reducing valve is disposed in the steam path so as to be capable of opening and closing the fluid intake port, The inner cap is provided with a fluid guiding tube provided around the pressure reducing valve, and a rice water reservoir provided around the fluid guiding tube, The fluid guiding cylinder is configured to guide the fluid flowing into the steam path through the fluid intake port to an opposite wall of the outer cover opposite to an upper end of the fluid guiding cylinder, The rice water reservoir is configured to store rice water separated from the fluid by being guided to the opposing wall of the outer lid and flowing out through a gap between the upper end portion of the fluid guide tube and the opposing wall of the outer lid.
2. The pressure cooker of claim 1, wherein, The opposing wall is orthogonal to the direction of extension of the fluid guiding barrel.
3. The pressure cooker of claim 1, wherein, The upper end of the fluid guide tube is located above the upper end of the rice water reservoir.
4. The pressure cooker of claim 3 wherein, The rice water reservoir is provided with an annular gasket which is arranged in a manner of surrounding the fluid guide tube and protrudes in the vertical direction, The upper end portion of the fluid guide tube is located above an upper end portion of the gasket.
5. The pressure cooker of claim 1, wherein, The opposite walls of the outer cover are disposed at positions where the fluid guided by the fluid guiding cylinder collides.
6. The pressure cooker as claimed in any one of claims 1 to 5, wherein, A cross-sectional area of a flow path in a gap between the upper end portion of the fluid guide tube and the opposing wall is smaller than an opening area of the fluid intake port.
7. The pressure cooker as claimed in any one of claims 1 to 5, wherein, The bottom wall of the outer cap constituting the steam path between the opposite wall and the steam discharge port has at least one stepped portion in such a manner as to be apart from the inner cap in the up-down direction as approaching the steam discharge port, A step portion of the at least one step portion located closer to the opposite wall than the fluid intake port has a curved surface shape having a radius of curvature larger than a thickness of the bottom wall.
8. The pressure cooker of claim 7, wherein, The bottom wall of the outer cap has a plurality of the stepped portions, The step portion located closest to the opposite wall has a curved surface shape having a radius of curvature larger than that of the other step portions in the at least one step portion.
9. The pressure cooker of claim 7, wherein, The bottom wall of the outer lid has a protruding wall provided on the step portion, and the protruding wall protrudes from the step portion toward the rice water reservoir portion so as to intersect a tangential line of the step portion, which is formed by connecting the step portion and the steam discharge port by an imaginary straight line.
10. The pressure cooker of claim 9 wherein, The lower end portion of the protruding wall is located at the same height as the upper end portion of the fluid guide tube or above the upper end portion of the fluid guide tube.
11. The pressure cooker as claimed in any one of claims 1 to 5, wherein, The outer cover has a U-shaped steam guide wall protruding toward the inner cover around the opposite wall and opening toward the steam discharge port side, and the steam guide wall is configured to guide the steam separated from the fluid by being guided to the opposite wall to the steam discharge port.

Description

Pressure type rice cooker Technical Field The present disclosure relates to a pressure cooker having a structure for suppressing overflow of rice soup. Background Conventionally, as a rice cooker having a structure for suppressing overflow of rice soup, for example, a rice cooker described in japanese patent application laid-open No. 2022-134156 is known. "Rice soup" refers to a viscous white liquid in which starch from rice dissolves out into water to cover the surface of rice grains when cooking. The rice cooker described in the above patent document includes an inner lid having a rice water reservoir and a steam inlet. The conventional rice cooker is configured to separate a fluid entering the steam path portion through the steam inlet into rice water and steam, and to store the separated rice water in the rice water storage portion. Disclosure of Invention In recent years, pressure-type rice cookers have been widely used in which rice is cooked by increasing the internal pressure of a pot to be higher than atmospheric pressure. When the structure described in the above patent document is applied to a pressure cooker, the momentum of the fluid passing through the steam inlet is increased by the internal pressure of the pot. Therefore, the fluid is not sufficiently separated into the rice soup and the steam, and the rice soup may overflow together with the steam. Therefore, there is room for improvement in the conventional rice cooker from the viewpoint of suppressing overflow of rice soup. The purpose of the present disclosure is to provide a pressure-type rice cooker that can suppress overflow of rice soup as compared with the prior art. The pressure cooker according to one embodiment of the present disclosure includes a pot, a heating unit that heats the pot, and a cover that openably covers an upper opening of the pot. The cover body is provided with an inner cover, an outer cover and a pressure reducing valve. The inner lid has a fluid intake port communicating with the inner space of the pan, and is detachably attached to the outer lid so as to be capable of sealing the upper opening of the pan. The outer cap has a steam discharge port communicating with an outside of the cap body, and a steam path communicating the fluid intake port with the steam discharge port is formed inside the outer cap when the inner cap is mounted to the outer cap. The pressure reducing valve is disposed in the steam path so as to be capable of opening and closing the fluid intake port. The inner lid includes a fluid guide tube provided around the pressure reducing valve and a rice water reservoir provided around the fluid guide tube. The fluid guiding tube guides the fluid flowing into the steam path through the fluid intake port toward an opposite wall of the outer cover opposite to an upper end portion of the fluid guiding tube. The rice water reservoir accumulates rice water separated from the fluid by being guided to the opposing wall of the outer lid and flows out through a gap between the upper end of the fluid guide tube and the opposing wall of the outer lid. According to the pressure cooker of the present disclosure, overflow of rice soup can be suppressed as compared with the prior art. Drawings Fig. 1 is a longitudinal sectional view of a pressure cooker according to an embodiment of the present disclosure. Fig. 2 is a perspective view of an inner lid in the pressure cooker of the embodiment. Fig. 3 is a sectional view of an inner lid in the pressure cooker of the embodiment. Fig. 4 is a perspective view of the outer cover in the pressure cooker of the embodiment. Fig. 5 is a partially enlarged cross-sectional view of a cover in the pressure cooker of the embodiment. Fig. 6 is an enlarged partial cross-sectional view showing a modification of the lid of the pressure cooker according to the embodiment. Detailed Description The pressure cooker of the first aspect of the present disclosure includes a pot, a heating unit that heats the pot, and a cover that openably covers an upper opening of the pot. The cover body is provided with an inner cover, an outer cover and a pressure reducing valve. The inner lid has a fluid intake port communicating with the inner space of the pan, and is detachably attached to the outer lid so as to be capable of sealing the upper opening of the pan. The outer cap has a steam discharge port communicating with an outside of the cap body, and a steam path communicating the fluid intake port with the steam discharge port is formed inside the outer cap when the inner cap is mounted to the outer cap. The pressure reducing valve is disposed in the steam path so as to be capable of opening and closing the fluid intake port. The inner cap is provided with a fluid guiding tube. Which is provided around the pressure reducing valve, and a rice water reservoir, which is provided around the fluid guiding cylinder. The fluid guiding tube guides the fluid flowing into the steam path through the fluid