Pressure type rice cooker

Abstract

The invention discloses a pressure type rice cooker. The pressure type rice cooker is provided with a pot, a heating part and a cover body. The cover body includes an inner cover, an outer cover, and a pressure reducing valve. The inner lid has a fluid intake port communicating with the inside of the pot, and is detachably attached to the outer lid so as to be able to close the upper opening of the pot. The outer cap has a steam discharge port communicating with the outside of the cap body, and when the inner cap is attached to the outer cap, a steam path communicating the fluid intake port and the steam discharge port is formed inside 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 cover is provided with a fluid guide cylinder provided around the pressure reducing valve, and a rice water reservoir provided around the fluid guide cylinder. The fluid guide cylinder guides the fluid flowing in through the fluid intake port to an opposing wall of the outer cover. The rice soup storage part stores rice soup separated from the fluid by being guided by the opposing wall.

Description

Technical Field

[0001] This disclosure relates to a pressure rice cooker having a structure that suppresses rice water overflow. Background Technology

[0002] Previously, rice cookers with structures to prevent rice water from overflowing were known, for example, the rice cooker described in Japanese Patent Application Publication No. 2022-134156. "Rice water" refers to starch dissolution liquid, which is the sticky white liquid that covers the surface of rice grains when the starch of rice dissolves into the water during cooking.

[0003] The rice cooker described in the aforementioned patent document has an inner lid, which has a rice water storage section and a steam inlet. This conventional rice cooker is configured to separate the fluid entering the steam path section via the steam inlet into rice water and steam, and to store the separated rice water in the rice water storage section. Summary of the Invention

[0004] In recent years, pressure cookers, which cook rice at a pressure higher than atmospheric pressure, have become widely popular. When the structure described in the aforementioned patent document is applied to a pressure cooker, the flow rate of the fluid through the steam inlet increases due to the internal pressure of the pot. As a result, the fluid cannot be adequately separated into rice water and steam, and the rice water may overflow along with the steam.

[0005] Therefore, there is room for improvement in the way existing rice cookers prevent rice water from overflowing. The purpose of this disclosure is to provide a pressure rice cooker that can suppress rice water overflow compared to previous models.

[0006] One aspect of the pressure cooker disclosed herein includes: a pot; a heating element that heats the pot; and a lid that covers the upper opening of the pot in an openable and closable manner.

[0007] The lid comprises an inner lid, an outer lid, and a pressure-reducing valve. The inner lid has a fluid inlet communicating with the interior space of the pot and is detachably mounted to the outer lid in a manner that seals the upper opening of the pot. The outer lid has a steam outlet communicating with the outside of the lid body. When the inner lid is mounted on the outer lid, a steam path is formed inside the outer lid, connecting the fluid inlet and the steam outlet. The pressure-reducing valve is configured in the steam path to open and close the fluid inlet.

[0008] The inner cover includes a fluid guide tube disposed around the pressure reducing valve and a rice water collection section disposed around the fluid guide tube. The fluid guide tube guides the fluid flowing into the steam path through the fluid inlet to the opposite wall of the outer cover, which is opposite to the upper end of the fluid guide tube. The rice water collection section collects the rice water that has separated from the fluid by being guided to the opposite wall of the outer cover and flows out through the gap between the upper end of the fluid guide tube and the opposite wall of the outer cover.

[0009] According to the pressure rice cooker disclosed herein, the overflow of rice water can be suppressed compared with the past. Attached Figure Description

[0010] Figure 1 This is a longitudinal sectional view of a pressure rice cooker according to an embodiment of the present disclosure.

[0011] Figure 2 This is a perspective view of the inner lid of the pressure rice cooker in the embodiment.

[0012] Figure 3 This is a cross-sectional view of the inner lid of the pressure rice cooker according to the embodiment.

[0013] Figure 4 This is a perspective view of the outer cover of the pressure rice cooker in the embodiment.

[0014] Figure 5 This is a partially enlarged cross-sectional view of the lid of the pressure rice cooker according to the embodiment.

[0015] Figure 6 This is a partially enlarged cross-sectional view showing a modified example of the lid in a pressure rice cooker according to an embodiment. Detailed Implementation

[0016] The pressure rice cooker of the first aspect of this disclosure includes: a pot; a heating element that heats the pot; and a lid that covers the upper opening of the pot in an openable and closable manner.

[0017] The lid comprises an inner lid, an outer lid, and a pressure-reducing valve. The inner lid has a fluid inlet communicating with the interior space of the pot and is detachably mounted to the outer lid in a manner that seals the upper opening of the pot. The outer lid has a steam outlet communicating with the outside of the lid body. When the inner lid is mounted on the outer lid, a steam path is formed inside the outer lid, connecting the fluid inlet and the steam outlet. The pressure-reducing valve is configured in the steam path to open and close the fluid inlet.

[0018] The inner cover includes: a fluid guide tube disposed around the pressure reducing valve; and a rice water collection section disposed around the fluid guide tube. The fluid guide tube guides the fluid flowing into the steam path through the fluid inlet to the opposite wall of the outer cover, which is opposite to the upper end of the fluid guide tube. The rice water collection section collects the rice water that separates from the fluid guided to the opposite wall of the outer cover and flows out through the gap between the upper end of the fluid guide tube and the opposite wall of the outer cover.

[0019] The second type of pressure rice cooker disclosed herein is based on the first type, wherein the relative wall is orthogonal to the extension direction of the fluid guide cylinder.

[0020] The pressure rice cooker of the third method disclosed herein is based on the first method, wherein the upper end of the fluid guide tube is located above the upper end of the rice water accumulation section.

[0021] The fourth type of pressure rice cooker disclosed herein, based on any of the first to third types, has an annular liner in the rice water accumulation section, which is configured to surround the fluid guide cylinder and protrudes vertically. The upper end of the fluid guide cylinder is located above the upper end of the liner.

[0022] The fifth type of pressure rice cooker disclosed herein is based on the first type, wherein the opposite wall of the outer cover is positioned at the point where the fluid guided by the fluid guide tube collides.

[0023] The sixth method of the pressure rice cooker disclosed herein is based on any one of the first to fifth methods, wherein the cross-sectional area of ​​the flow path in the gap between the upper end of the fluid guide tube and the opposite wall is smaller than the opening area of ​​the fluid inlet.

[0024] The seventh type of pressure rice cooker disclosed herein, based on any of the first to sixth types, has at least one stepped portion in the bottom wall of the outer cover forming a steam path between the opposing wall and the steam outlet, such that it moves away from the inner cover in the vertical direction as it approaches the steam outlet. The stepped portion located closer to the opposing wall than the fluid inlet has a curved surface shape with a radius of curvature larger than the thickness of the bottom wall.

[0025] The pressure rice cooker of the eighth method disclosed herein, based on the seventh method, has multiple stepped sections on the bottom wall of the outer cover.

[0026] The step portion located closest to the opposite wall has a curved surface shape with a radius of curvature larger than that of the other steps in at least one step portion.

[0027] The ninth type of pressure rice cooker disclosed herein, based on the seventh or eighth type, has a protruding wall on the bottom wall of the outer cover, which protrudes from the step portion toward the rice water accumulation portion in a manner that crosses the tangent of the step portion formed by connecting the step portion and the steam outlet by an imaginary straight line.

[0028] The pressure rice cooker of the tenth method disclosed herein, based on the ninth method, has its lower end of the protruding wall located at the same height as the upper end of the fluid guide tube, or located above the upper end of the fluid guide tube.

[0029] The pressure rice cooker of the eleventh embodiment of this disclosure, based on any of the first to tenth embodiments, has an outer cover with a U-shaped steam guiding wall that protrudes towards the inner cover around the opposing wall and opens towards the steam outlet side. The steam guiding wall directs steam toward the steam outlet. This steam is separated from the fluid by being guided toward the opposing wall.

[0030] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. However, detailed descriptions of known matters will be omitted, and identical or substantially identical components will be labeled with the same reference numerals and repeated descriptions will be omitted.

[0031] Additionally, in the following description, "above," "below," "up and down direction," and "horizontal" refer to "above," "below," "up and down direction," and "horizontal" in the normal operating state of a pressure cooker, respectively.

[0032] (Implementation Method)

[0033] Figure 1 This is a longitudinal sectional view of the pressure rice cooker of this embodiment.

[0034] like Figure 1 As shown, the pressure rice cooker of this embodiment includes a main body 1, a pot 2, an outer lid 3, an inner lid 4, a pot bottom heating unit 5, and a pot temperature sensor 6. The main body 1 is a generally bottomed cylindrical component with a pot storage section 1A inside. The pot 2 is stored in the pot storage section 1A. Rice, water, and other ingredients to be cooked are placed in the pot 2.

[0035] An outer cover 3 is installed on top of the main body 1. This outer cover 3 can be opened and closed at the upper opening of the main body 1 and has a hollow structure. The inner cover 4 has a generally disc-shaped shape and is detachably installed inside the outer cover 3, i.e., between the outer cover 3 and the pot 2 when the outer cover 3 is closed, thus sealing the upper opening of the pot 2. In this embodiment, the outer cover 3 and the inner cover 4 constitute a cover body for sealing the upper opening of the pot 2.

[0036] The bottom heating unit 5 is disposed on the outer peripheral surface of the pot storage section 1A, and is an example of a heating unit that heats the pot 2 by induction heating. The bottom heating unit 5 includes an inner bottom heating coil 5A and an outer bottom heating coil 5B. The inner bottom heating coil 5A is disposed facing each other near the center of the bottom of the pot 2, separated by the pot storage section 1A. The outer bottom heating coil 5B is disposed facing each other near the periphery of the bottom of the pot 2, separated by the pot storage section 1A.

[0037] The pot storage section 1A has an opening located in the center of its bottom. A pot temperature sensor 6 is disposed in this opening and can abut against the bottom of the pot 2 stored in the pot storage section 1A. The pot temperature sensor 6 is an example of a pot temperature detection unit used to measure the temperature of the pot 2. Since the temperature of the pot 2 is approximately the same as the temperature of the food being cooked inside the pot 2, the pot temperature sensor 6 can detect the temperature of the food being cooked inside the pot 2 by detecting the temperature of the pot 2.

[0038] The outer cover 3 has a hinge shaft 31. The hinge shaft 31 is a rotating shaft for opening and closing the outer cover 3, and its two ends are rotatably fixed to the main body 1. A torsion coil spring 7 is installed around the hinge shaft 31. The torsion coil spring 7 elastically applies force about the hinge shaft 31 in the direction that causes the outer cover 3 to move away from the upper opening of the pot 2, that is, in the direction of opening the outer cover 3.

[0039] An opening device 8 is provided inside the outer cover 3. The opening device 8 engages with a part of the main body 1, keeping the upper opening of the main body 1 closed by the outer cover 3. When the outer cover 3 closes the upper opening of the main body 1, pressing the opening button 81 will release the engagement between the opening device 8 and the part of the main body 1.

[0040] Therefore, through the force of the torsional coil spring 7, the outer cover 3 rotates about the hinge shaft 31 in a direction away from the upper opening of the pot 2, thus opening the upper opening of the pot 2. In this embodiment, the lid opening button 81 is provided on the outer cover 3. The lid opening button 81 can also be provided on the main body 1.

[0041] The outer cover 3 is provided with a steam vent 32 that communicates with the external space of the cover body. The steam vent 32 is provided to discharge the steam generated inside the pot 2 to the outside of the rice cooker. In this embodiment, the steam vent 32 is provided on the upper wall of the outer cover 3 near the hinge shaft 31.

[0042] The inner cover 4 is provided with a fluid inlet 4A that communicates with the internal space of the pot 2. When the inner cover 4 is installed on the outer cover 3, a steam path 9 is formed between the outer cover 3 and the inner cover 4, which connects the fluid inlet 4A with the steam outlet 32.

[0043] Fluid inlet 4A is provided to draw the fluid containing steam and rice water generated inside pot 2 into steam path 9. For example... Figure 1 and the following Figure 5 As indicated by arrow S, the steam generated inside the pot 2 is discharged to the outside of the rice cooker through the fluid inlet 4A, the steam path 9, and the steam outlet 32.

[0044] A pressure-reducing valve 10 capable of opening and closing the fluid inlet 4A is provided midway through the steam path 9. A pressure-reducing valve moving mechanism 11 moves the pressure-reducing valve 10 between a closed position that closes the fluid inlet 4A and an open position that opens the fluid inlet 4A. In this embodiment, the pressure-reducing valve moving mechanism 11 is mounted above the fluid inlet 4A, causing the pressure-reducing valve 10 to move in the vertical direction (thickness direction of the cover).

[0045] The pressure reducing valve moving mechanism 11 presses the pressure reducing valve 10 with a pressure greater than a specified value (e.g., 1.2 atmospheres) to keep the pressure reducing valve 10 in the closed position. When the internal pressure of the pot 2 becomes higher than a specified value (e.g., 1.2 atmospheres), the control unit 13, described later, controls the pressure reducing valve moving mechanism 11 to move the pressure reducing valve 10 from the closed position to the open position.

[0046] This causes the internal pressure of pot 2 to drop instantaneously from, for example, 1.2 atmospheres to 1.0 atmospheres, causing the water in pot 2 to boil suddenly. As a result, the rice grains in the mixing pot 2 can be stirred sufficiently. At this time, the fluid containing steam and rice water generated in pot 2 may enter the steam path 9 through the fluid inlet 4A.

[0047] A display operation unit 12 is provided on the upper part of the outer cover 3. The display operation unit 12 displays various information such as cooking mode and cooking time. By operating the display operation unit 12, the user can select the desired cooking mode from multiple cooking modes such as white rice mode, brown rice mode, and white rice (soft) mode.

[0048] In addition to selecting the cooking mode, the display operation unit 12 is also used to instruct the start, cancellation, and timer functions of cooking. The user operates the display operation unit 12 while referring to the various information displayed, selects the desired cooking mode, and begins cooking.

[0049] The control unit 13 is located inside the main body 1. The control unit 13 has a storage unit for storing multiple rice cooking programs. A rice cooking program is a program for sequentially performing four steps: preheating, heating, boiling maintenance, and steaming. In the rice cooking program, the power-on time, heating temperature, heating time, heating output, etc., for each step are predetermined.

[0050] Each rice cooking program is associated with a corresponding rice cooking mode among multiple rice cooking modes. The control unit 13 controls the bottom heating unit 5 and the pressure reducing valve moving mechanism 11 to execute the rice cooking process based on the rice cooking mode selected in the display operation unit 12 and the temperature detected by the pot temperature sensor 6.

[0051] Next, the structure of the outer cover 3 and the inner cover 4 will be explained in more detail. Figure 2 This is a three-dimensional view of the inner cover 4 as seen from an obliquely upward angle. Figure 3 This is a cross-sectional view of the inner cover 4. Figure 4 This is a three-dimensional view of the outer cover 3 viewed from a slightly lower angle. Figure 5 This is a partially enlarged sectional view of the cover.

[0052] like Figure 2 As shown, the inner cover 4 includes a fluid guide cylinder 41, a rice water storage section 42, and a reflux valve 43. The fluid guide cylinder 41 is disposed around the pressure reducing valve 10. The rice water storage section 42 is disposed around the fluid guide cylinder 41.

[0053] The fluid guide tube 41 directs the fluid flowing into the steam path 9 through the fluid inlet 4A to the opposite wall 33 of the outer cover 3 (see reference). Figure 4 The outer cover 3's opposite wall 33 is separated from the fluid guide tube 41 by a gap G above the fluid guide tube 41 (see reference). Figure 5 It is positioned opposite the upper end 41A of the fluid guide tube 41. In this embodiment, the opposing wall 33 is opposite the periphery of the surface of the pressure reducing valve 10 of the pressure reducing valve moving mechanism 11 (see reference). Figure 1 ).

[0054] The fluid guide tube 41 is formed, for example, in a cylindrical shape to surround the pressure reducing valve 10. In this embodiment, the opposing wall 33 (see reference) Figure 4 The fluid guide tube 41 is arranged orthogonally to its extension direction. In this embodiment, "orthogonal" can mean not only strictly orthogonal but also "approximately orthogonal". Specifically, the two surfaces or lines can be arranged with a maximum offset of 10 degrees from their perpendicular arrangement.

[0055] The fluid guide tube 41 extends in the axial direction (vertical direction) of the cylindrical fluid guide tube 41. Therefore, the opposite wall 33 is parallel to the horizontal plane. In this embodiment, "parallel" may also include the same margin or tolerance as "orthogonal" described above.

[0056] The fluid flowing into the steam path 9 through the fluid inlet 4A is guided by the fluid guide tube 41 and separated into steam and rice soup.

[0057] Rice water is separated from the fluid by being guided toward the opposing wall 33, through the gap G between the upper end 41A of the fluid guide tube 41 and the opposing wall 33 (see reference). Figure 5 The rice water flows out. The rice water accumulation section 42 is configured to accumulate the rice water. The upper end 41A of the fluid guide tube 41 is located above the upper end 42A of the rice water accumulation section 42.

[0058] In this embodiment, the rice water accumulation section 42 includes a liner 42B. The liner 42B is an annular elastic body that is arranged to surround the fluid guide tube 41 and protrudes in the vertical direction (thickness direction of the cover).

[0059] like Figure 3 As shown, the height of the upper end portion 42A of the rice water accumulation section 42 is the same as the height of the upper end portion of the liner 42B. The upper end portion 41A of the fluid guide tube 41 is located above the upper end portion of the liner 42B. The height H1 from the bottom surface of the inner cover 4 to the upper end portion 41A of the fluid guide tube 41 is higher than the height H2 from the bottom surface of the inner cover 4 to the upper end portion of the liner 42B.

[0060] As a result, the steam separated from the fluid by being guided toward the opposing wall 33 flows above the rice water accumulation section 42. Consequently, it is possible to prevent the steam from contacting the rice water accumulated in the rice water accumulation section 42, thereby preventing the rice water from overflowing.

[0061] Reflux valve 43 (refer to) Figure 2 The system is configured to connect the internal space of the pot 2 with the internal space of the rice water storage section 42. When the pressure inside the rice water storage section 42 is lower than the pressure inside the pot 2, the return valve 43 functions to return the rice water stored in the rice water storage section 42 back to the internal space of the pot 2.

[0062] In this embodiment, the upper end portion 41A of the fluid guide tube 41 and the opposing wall 33 (see reference) Figure 5 The gap G between (refer to) Figure 5 The cross-sectional area of ​​the flow path in the fluid inlet 4A is designed to be smaller than the opening area of ​​the fluid inlet 4A.

[0063] According to this structure, the fluid flowing into the steam path 9 through the fluid inlet 4A collides with the opposing wall 33 perpendicular to the fluid flow. As a result, the fluid can be more reliably separated into rice water and steam. The separated rice water and steam flow horizontally in the gap G.

[0064] The outer cover 3 has a bottom wall 34 that forms the steam path 9 between the opposing wall 33 and the steam outlet 32 ​​(see reference). Figure 1 and Figure 5 The bottom wall 34 has at least one stepped portion 35 that moves away from the inner cover 4 in the vertical direction as it approaches the fluid inlet 4A.

[0065] In this embodiment, the outer cover 3 has three stepped portions 35 (35A to 35C) provided on its bottom wall. As a result, the area of ​​the steam path 9 increases toward the steam outlet 32, and the momentum of the steam flowing in the steam path 9 weakens.

[0066] The step portion 35A is located closer to the opposing wall 33 than the steam outlet 32. In the longitudinal section of the step portion 35A, the cross-sectional profile of the bottom wall 34 has a radius of curvature larger than the thickness of the bottom wall 34. That is, the step portion 35A has a curved surface shape with a radius of curvature larger than the thickness of the bottom wall 34. In this embodiment, the step portion 35A has a curved surface shape with a radius of curvature larger than that of the step portions 35B and 35C.

[0067] Through this structure, the steam separated from the fluid flowing horizontally in the gap G is guided obliquely upward along the bottom wall 34 by the wall adhesion effect generated at the step portion 35A. On the other hand, the rice water separated from the fluid flowing horizontally in the gap G falls due to gravity and is collected in the rice water accumulation portion 42. As a result, it is possible to prevent the steam from contacting the rice water accumulated in the rice water accumulation portion 42, thereby preventing the rice water from overflowing.

[0068] like Figure 4 and Figure 5 As shown, the bottom wall 34 of the outer cover 3 has a protruding wall 36 provided in the stepped portion 35B. Figure 5 As shown, the protruding wall 36 protrudes downward from the step 35B toward the rice soup storage section 42 in a manner that crosses the tangent of the step 35A formed by connecting the step 35A and the steam outlet 32 ​​using an imaginary straight line L1.

[0069] Even if the rice water separated from the fluid flows over the step section 35A toward the steam outlet 32, the protruding wall 36 can guide the rice water toward the rice water storage section 42.

[0070] On the other hand, the steam separated from the fluid fills the space between the step 35A and the protruding wall 36, and after its momentum weakens, it flows over the protruding wall 36 to the steam outlet 32. As a result, the overflow of rice soup can be suppressed.

[0071] The lower end 36A of the protruding wall 36 is located at the same height as or above the upper end 41A of the fluid guide cylinder 41. As a result, it is possible to prevent the steam separated from the fluid from contacting the rice water accumulated in the rice water storage section 42, and to prevent the rice water from overflowing.

[0072] The outer cover 3 has a steam guiding wall 37 disposed around the opposing wall 33 and protruding toward the inner cover 4 (see reference). Figure 4 The steam guiding wall 37, when viewed from above, has a U-shaped opening on the side of the steam outlet 32, which guides the steam separated from the fluid by the guide to the opposite wall 33 to the steam outlet 32.

[0073] In the pressure cooker of this embodiment, the inner cover 4 has a fluid guide cylinder 41 disposed around the pressure reducing valve 10. The fluid guide cylinder 41 is configured to guide the fluid flowing into the steam path 9 toward the opposing wall 33. According to this structure, rice water and steam can be separated more reliably.

[0074] In the pressure rice cooker of this embodiment, there is a rice water accumulation section 42 disposed around the fluid guide cylinder 41. The rice water accumulation section 42 is configured to accumulate rice water that flows out through the gap G between the upper end 41A of the fluid guide cylinder 41 and the opposing wall 33.

[0075] According to this structure, rice water separated from the fluid by being guided toward the opposite wall 33 can be stored in the rice water storage section 42, and the overflow of rice water from the steam outlet 32 ​​can be suppressed.

[0076] In the initial stage of the boiling process, there is a large amount of water in the pot 2. Therefore, when the pressure reducing valve 10 is moved from the closed position to the open position in the initial stage of the boiling process, the amount of fluid flowing into the steam path 9 increases, and the amount of rice water contained in the fluid also increases.

[0077] Based on the above structure, rice water and steam can be separated more reliably in the initial stage of the boiling process. Furthermore, by repeatedly opening and closing the pressure-reducing valve 10, the food being cooked in the pot 2 can be vigorously stirred. As a result, heat can be evenly transferred to the rice grains, improving the flavor.

[0078] This disclosure is not limited to the embodiments described above and can be implemented in various other ways. For example, in the above embodiment, the fluid guide tube 41 has a cylindrical shape. However, this disclosure is not limited to this. The fluid guide tube 41 can be any structure capable of guiding fluid flowing into the steam path 9 through the fluid inlet 4A toward the opposing wall 33. For example, tiny holes, cuts, slits, etc., may be provided in a part of the fluid guide tube 41.

[0079] In the above embodiment, the opposing wall 33 has a flat surface orthogonal to the extending direction of the fluid guide tube 41. However, this disclosure is not limited thereto. The opposing wall 33 may simply have a shape capable of separating the fluid flowing into the steam path 9 through the fluid inlet 4A into steam and rice soup. For example, the opposing wall 33 may also have a concave or convex surface.

[0080] In the above embodiment, the bottom wall 34 of the outer cover 3 has a protruding wall 36. However, this disclosure is not limited thereto. Figure 6 This is a partially enlarged cross-sectional view showing a modified example of the lid in the pressure rice cooker of this embodiment. (Example) Figure 6As shown, the protruding wall 36 may not be provided on the bottom wall 34 of the outer cover 3. With this structure, the momentum of the rice water separating from the fluid can be reduced as it moves towards the steam outlet 32. Therefore, the overflow of the rice water can be suppressed.

[0081] The opposing wall 33 of the outer cover 3 is preferably positioned at the point where the fluid guided by the fluid guide tube 41 collides with the opposing wall 33. This structure allows the fluid guided by the fluid guide tube 41 to collide with the opposing wall 33, more reliably separating the fluid into rice water and steam.

[0082] Compared to previous methods, the rice cooker disclosed herein can suppress the overflow of rice water, and therefore can be used as a pressure cooker.

Claims

1. A pressure rice cooker, wherein, The pressure cooker has the following features: pot; A heating unit configured to heat the pot; and The lid is configured to cover the upper opening of the pot in a manner that allows it to be opened and closed. The cover has an inner cover, an outer cover, and a pressure reducing valve. The inner lid has a fluid inlet communicating with the interior space of the pot, and is removably mounted to the outer lid in a manner that seals the upper opening of the pot. The outer cover has a steam outlet communicating with the outside of the cover body. When the inner cover is installed on the outer cover, a steam path is formed inside the outer cover, connecting the fluid inlet and the steam outlet. The pressure reducing valve is configured in the steam path in a manner that enables it to open and close the fluid inlet. The inner cover includes: a fluid guide tube disposed around the pressure reducing valve; and a rice water collection section disposed around the fluid guide tube. The fluid guide tube is configured to guide the fluid flowing into the steam path through the fluid inlet to the opposite wall of the outer cover, which is opposite to the upper end of the fluid guide tube. The rice water accumulation section is configured to accumulate rice water that is separated from the fluid by being guided to the opposite wall of the outer cover and flows out through the gap between the upper end of the fluid guide tube and the opposite wall of the outer cover.

2. The pressure rice cooker according to claim 1, wherein, The opposing wall is orthogonal to the extension direction of the fluid guide tube.

3. The pressure rice cooker according to claim 1, wherein, The upper end of the fluid guide tube is located above the upper end of the rice soup accumulation section.

4. The pressure rice cooker according to claim 3, wherein, The rice water storage section has an annular gasket that is configured to surround the fluid guide cylinder and protrudes vertically. The upper end of the fluid guide tube is located above the upper end of the liner.

5. The pressure rice cooker according to claim 1, wherein, The opposite wall of the outer cover is positioned at the point where the fluid guided by the fluid guide tube collides with the fluid.

6. The pressure rice cooker according to any one of claims 1 to 5, wherein, The cross-sectional area of ​​the flow path in the gap between the upper end of the fluid guide tube and the opposite wall is smaller than the opening area of ​​the fluid inlet.

7. The pressure rice cooker according to any one of claims 1 to 5, wherein, The bottom wall of the outer cover, which forms the steam path between the opposing wall and the steam outlet, has at least one stepped portion that moves away from the inner cover in the vertical direction as it approaches the steam outlet. The step portion located closer to the opposite wall than the fluid inlet has a curved surface shape with a radius of curvature greater than the thickness of the bottom wall.

8. The pressure rice cooker according to claim 7, wherein, The bottom wall of the outer cover has multiple stepped portions. The step portion located closest to the opposing wall has a curved surface shape with a radius of curvature larger than that of the other step portions in the at least one step portion.

9. The pressure rice cooker according to claim 7, wherein, The bottom wall of the outer cover has a protruding wall provided in the stepped portion, the protruding wall protruding from the stepped portion toward the rice soup storage portion in such a way that it crosses the tangent of the stepped portion formed by connecting the stepped portion and the steam outlet by an imaginary straight line.

10. The pressure rice cooker according to claim 9, wherein, The lower end of the protruding wall is located at the same height as the upper end of the fluid guide tube, or above the upper end of the fluid guide tube.

11. The pressure rice cooker according to any one of claims 1 to 5, wherein, The outer cover has a U-shaped steam guide wall that protrudes toward the inner cover around the opposing wall and opens toward the steam outlet side. The steam guide wall is configured to guide steam separated from the fluid by being guided toward the opposing wall toward the steam outlet.

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