JP7088875B2 - rice cooker - Google Patents

Description

The present invention relates to a rice cooker.

Conventionally, a rice cooker that does not discharge steam during rice cooking to the outside of the main body or suppresses the amount of steam discharged has been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-234899

In the rice cooker described in Patent Document 1, the steam that has entered the steam recovery unit collects in the first room, then in the second room outside the first room, and then in the second room. It is discharged from the outlet through the third room on the outside. However, in a rice cooker having such a structure, the steam flowing from the second room to the third room is immediately discharged from the discharge port, and the amount of steam that can be stored is reduced.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a rice cooker capable of increasing the amount of steam that can be stored.

The present invention includes a main body, an inner pot that is detachably stored in the main body, a lid that covers the upper part of the main body, and a steam recovery unit that is attached to the lid and collects steam generated in the inner pot. , The steam recovery unit includes an inlet for which the steam flows, a communication port communicating with the outside of the main body, a first chamber surrounding the inlet, and a first chamber surrounding the communication port. The two chambers and an intermediate chamber provided between the first chamber and the second chamber are provided, the volume of the second chamber is smaller than the volume of the intermediate chamber, and the intermediate chamber is the intermediate chamber. It includes a first intermediate room that communicates with the first room and a second intermediate room that communicates with the second room, and the first room and the first intermediate room are vertically connected to each other. The first communication section that communicates with the second intermediate chamber, the second communication section that communicates the second chamber and the second intermediate chamber at the lower part in the vertical direction, and the first intermediate chamber and the second intermediate chamber in the vertical direction. An intermediate communication portion that communicates with the lower portion is provided, and the second communication portion and the intermediate communication portion are formed so as to face opposite directions to each other .

According to the present invention, it is possible to provide a rice cooker capable of increasing the amount of steam that can be stored.

It is a vertical sectional view of the rice cooker of 1st Embodiment. It is an external perspective view which shows the steam recovery unit. It is a perspective view which shows the internal structure of a steam recovery unit. It is a front view of the steam recovery unit. FIG. 6 is a sectional view taken along line VV of FIG. FIG. 4 is a sectional view taken along line VI-VI of FIG. FIG. 4 is a cross-sectional view taken along the line VII-VII of FIG. It is a perspective view which shows the steam recovery unit of FIG. It is a perspective view which shows the steam recovery unit provided in the rice cooker of 2nd Embodiment. It is a front view of the steam recovery unit. FIG. 10 is a cross-sectional view taken along the line XI-XI of FIG. FIG. 10 is a cross-sectional view taken along the line XII-XII of FIG. FIG. 10 is a cross-sectional view taken along the line XIII-XIII of FIG. It is a perspective view which shows the steam recovery unit of FIG.

Next, the rice cooker according to the embodiment of the present invention will be described in detail with reference to the drawings as appropriate.

(First Embodiment)
FIG. 1 is a vertical sectional view showing the rice cooker of the first embodiment.
As shown in FIG. 1, the rice cooker 1 is attached to a main body 2, an inner pot 3 that is detachably stored in the main body 2, an outer lid 4 (lid) that covers the upper part of the main body 2, and an outer lid 4. The steam recovery unit 5A (steam recovery unit) that recovers the steam generated in the inner pot 3 is provided.

The main body 2 is provided with an inner container 5 having an open upper surface and a detachable inner pot 3 to be inserted. Further, in the lower part of the main body 2, a heating coil 6 for inducing heating the inner pot 3 is provided on the outer bottom surface portion of the inner pot 3.

Further, a disk-shaped aluminum plate 10 having a hole in the center is fixed to the bottom of the main body 2. The aluminum plate 10 has a function of preventing the magnetic flux due to the heating coil 6 from leaking toward the lower side of the main body 2.

Further, a temperature sensor unit 7 is provided at the lower part of the main body 2 so as to come into contact with the central portion of the outer bottom surface portion of the inner pot 3 and detect the temperature of the inner pot 3. Further, a control unit (control board) 8 is provided behind the main body 2. The control unit 8 is arranged in a space portion having a low temperature in the main body 2. The temperature information detected by the temperature sensor unit 7 is input to the control unit 8 to control the heating of the heating coil 6.

A cooling fan 9 is provided in the lower rear portion of the main body 2. The cooling fan 9 cools the inside of the main body 2 including the heating coil 6 and the control unit 8. Further, on the bottom surface of the case constituting the outer shell of the main body 2, an intake port 2a is formed behind the heating coil 6, and an exhaust port 2b is formed in front of the heating coil 6.

The inner pot 3 is a bottomed cylindrical container, and is formed of, for example, a composite material of a magnetic metal containing a ferromagnetic metal such as iron and a non-magnetic metal. Further, the inner hook 3 has a flange portion 3a on the entire circumference of the opening edge portion. Further, the inner pot 3 is housed in the inner container 5 in a state where the flange portion 3a is in contact with the opening edge portion of the inner container 5. At this time, the bottom surface (lower surface) of the inner pot 3 is in contact with the temperature sensor unit 7.

The outer lid 4 is provided with an inner lid 11 on the lower surface thereof, and is rotatably attached to the main body 2. By closing the outer lid 4, the upper surface opening of the main body 2 is covered, and the upper surface opening of the inner pot 3 is closed by the inner lid 11 provided with the packing 12 on the outer periphery.

A lid heater 13 made of a cord heater or the like of about 50 W is provided on the upper surface of the inner lid 11. By providing the lid heater 13, it works to evaporate the dew on the inner lid 11.

Further, the inner lid 11 is provided with a pressure regulating valve 14. The outer lid 4 includes a pressure regulating valve control unit 15 that controls the pressure regulating valve 14. The pressure regulating valve 14 includes a sphere 14a, and has a structure in which an opening is opened to maintain 1.3 atm when the pressure inside the inner pot 3 exceeds, for example, 1.3 atm. The pressure control valve control unit 15 moves the sphere 14a by a solenoid to control whether the pressure control valve 14 is in the pressure control operation state or the open state.

Further, the upper surface of the outer lid 4 is provided with a menu such as the type of rice and how to cook, and an operation unit 16 for operating "rice cooking", "cutting" and the like. The operation unit 16 is connected to the control unit 8.

The steam recovery unit 5A is detachably attached to the upper surface of the outer lid 4. Further, the steam recovery unit 5A has a labyrinth structure, can store steam, and has a function of converting the steam stored inside into dew condensation water. That is, a recess 4a in which the steam recovery unit 5A is housed is formed in the rear portion of the upper surface of the outer lid 4. A circular opening 4b is formed on the bottom surface 4a1 of the recess 4a. Further, the outer lid 4 is provided with a steam passage 4c for connecting the opening 4b and the pressure regulating valve 14. As a result, the steam discharged from the pressure regulating valve 14 flows into the steam recovery unit 5A through the steam passage 4c and the opening 4b. Further, the steam flowing into the steam recovery unit 5A is cooled and replaced with dew condensation water, and is returned to the inner lid 11 through the steam passage 4c.

FIG. 2 is an external perspective view showing the steam recovery unit.
As shown in FIG. 2, the steam recovery unit 5A has a flat shape formed by combining the upper case 51 and the lower case 52. The upper case 51 is formed with discharge ports 51s (communication ports) through which steam (steam) is discharged. The discharge port 51s has an elongated hole shape extending in the left-right direction (width direction), and is formed at the center of the left-right direction and rearward in the front-rear direction.

Further, the upper case 51 is formed with an inclined surface 51d that is inclined toward the rear side behind the discharge port 51s.

Further, in the steam recovery unit 5A, an L-shaped hook 53 is rotatably provided on the upper case 51. The hook 53 is located at the center in the left-right direction (width direction). Further, the tip of the hook 53 is hooked on the lower surface of the lower case 52, so that the upper case 51 and the lower case 52 are locked.

FIG. 3 is a perspective view showing the internal structure of the steam recovery unit.
As shown in FIG. 3, the upper case 51 has an upper plate 51a located on the surface side of the rice cooker 1 and a side plate 51b extending from the outer peripheral edge portion of the upper plate 51a toward the lower case 52. There is. The side plate 51b has a front surface portion 51b1 facing forward, side surface portions 51b2, 51b2 facing left and right sides, and a rear surface portion 51b3 facing rearward.

The upper case 51 is formed with a frame body 55a constituting the first room R1 (first room, first space). The frame 55a is formed in a substantially square cylinder shape, and is formed from the ceiling surface 51a1 inside the upper case 51 downward in the vertical direction.

Further, in the upper case 51, a frame body 55b constituting the second room R2 (second room, second space) is formed at a position away from the first room R1. The frame body 55b is formed in a substantially square cylinder shape, and is formed from the ceiling surface 51a1 downward in the vertical direction.

Further, in the upper case 51, the first intermediate chamber R3 (third room, third space) is located outside the horizontal direction of the first chamber R1 (horizontal direction when the upper case 51 and the lower case 52 are closed). ) Is formed. The frame 55c is formed in a substantially square cylinder shape, and is formed from the ceiling surface 51a1 downward in the vertical direction.

Further, in the upper case 51, a space (a part of the second intermediate chamber R4 (see FIG. 6)) is formed so as to surround the entire first chamber R1, the second chamber R2, and the first intermediate chamber R3. ..

The lower case 52 has a bottom plate 52a facing the bottom surface 4a1 (see FIG. 1) of the outer lid 4 (see FIG. 1), and a side plate 52b extending vertically upward from the outer peripheral edge portion of the bottom plate 52a. ing. The side plate 52b has a front surface portion 52b1 facing forward, side surface portions 52b2, 52b2 facing left and right sides, and a rear surface portion 52b3 facing rearward.

Further, in the lower case 52, an inflow portion 57 for flowing steam into the steam recovery unit 5A is formed on the bottom plate 52a. The inflow portion 57 has a cylindrical portion 57a extending upward in the vertical direction from the bottom surface 52a1. An inflow port 57b is formed in the upper part of the cylindrical portion 57a. The inflow port 57b is formed by being cut out in a square shape from the side surface (peripheral surface) of the cylindrical portion 57a to the upper surface. Further, the inflow port 57b is formed so as to face forward (the side opposite to the side where the second chamber R2 is provided).

A notch portion 55s (first communication portion) notched in a concave shape is formed at the lower end portion (tip portion) of the frame body 55a. The notch 55s is configured to communicate with the first intermediate chamber R3.

A notched portion 55t (second communication portion) notched in a concave shape is formed at the lower end portion (tip portion) of the frame body 55b. The notch 55t is configured to communicate with the second intermediate chamber R4 (see FIG. 6).

Notches 55u and 55u (intermediate communication portion, third communication portion) notched in a concave shape are formed at the lower end portion (tip portion) of the frame body 55c. The notch 55u is configured to communicate with the second intermediate chamber R4 (see FIG. 7). Further, the notch portion 55u is formed so as to face the notch portion 55t in the opposite direction in the front-rear direction.

Further, the lower case 52 is formed with a partition plate 56 directed upward in the vertical direction from the bottom surface 52a1 of the bottom plate 52a. The partition plate 56 is formed in a U-shape (U-shape) and has a plate portion 56a extending in the left-right direction and plate portions 56b and 56b extending forward from both left and right ends of the plate portion 56a. ing. Further, the partition plate 56 is arranged in the first intermediate chamber R3 when the upper case 51 and the lower case 52 are combined.

Further, in the lower case 52, a cylindrical portion 58 communicating with the inflow port 57b (inflow portion 57) is formed on the lower surface of the bottom plate 52a. The cylindrical portion 58 is formed to have a diameter larger than that of the cylindrical portion 57a, and is formed so as to project downward.

The upper case 51 and the lower case 52 are rotatably connected via hinge members 54 and 54. The hinge member 54 is provided behind the rear surface portions 51b3 and 52b3. A sealing material 51c is fitted to the entire tip (lower end) of the side plate 51b in the circumferential direction. As a result, the upper case 51 and the lower case 52 are closed and locked by the hook 53, so that the sealing material 51c of the upper case 51 and the tip end (upper end) of the side plate 52b of the lower case 52 come into contact with each other and the side plate. The gap between the 51b and the side plate 52b is sealed so that steam does not leak.

FIG. 4 is a front view of the steam recovery unit.
As shown in FIG. 4, the steam recovery unit 5A has a space inside by being surrounded by the upper case 51 and the lower case 52. Further, the upper plate 51a of the upper case 51 is formed so as to be curved so as to be slightly convex upward. The bottom plate 52a of the lower case 52 is formed so as to be slightly convex downward.

The cylindrical portion 58 is located at the center in the left-right direction (width direction) and is inserted into the opening 4b (see FIG. 1) formed in the recess 4a (see FIG. 1) of the outer lid 4 (see FIG. 1). It is configured in.

FIG. 5 is a sectional view taken along line VV of FIG. Note that FIG. 5 shows a state in which the upper case 51 is cut closer to the upper case 51 than the boundary between the upper case 51 and the lower case 52.
As shown in FIG. 5, the frame body 55a is formed so as to surround the entire circumference of the inflow portion 57. Further, the frame body 55a has a front plate portion 55a1 facing forward, side plate portions 55a2, 55a2 facing left and right sides, and a rear plate portion 55a3 facing rearward. The inflow portion 57 is located closer to the front in the front-rear direction so that the distance from the front plate portion 55a1 is shorter than the distance from the rear plate portion 55a3. Further, the inflow port 57b is formed so as to open toward the front plate portion 55a1.

Further, the bottom plate 52a of the lower case 52 is formed with a return hole 59 for returning the dew condensation water to the inner lid 11 (see FIG. 1) in the vicinity of the inflow portion 57. The return hole 59 is formed in the same chamber as the first chamber R1.

The frame body 55b is formed at a position separated rearward from the first chamber R1. Further, the frame body 55b has a front plate portion 55b1 facing forward, side plate portions 55b2, 55b2 facing left and right sides, and a rear plate portion 55b3 facing rearward. Further, the frame body 55b is formed so that the width in the left-right direction is the same as that of the frame body 55a, and the length in the front-rear direction is shorter than that of the frame body 55a.

The frame body 55c is formed at a position that surrounds the left, right, left, right, and rear of the first chamber R1 and is in front of the second chamber R2. Further, the frame body 55c has front plate portions 55c1, 55c1 facing forward, side plate portions 55c2, 55c2 facing left and right sides, and rear plate portions 55c3, 55c3 facing rearward.

The first intermediate chamber R3 includes a front plate portion 55c1, 55c1, a side plate portion 55c2, 55c2, a rear plate portion 55c3, 55c3, side plate portions 55a2, 55a2 of the frame body 55a, and a rear plate portion 55a3 of the frame body 55a. , The front plate portion 55b1 of the frame body 55b, and the like. In other words, the first intermediate chamber R3 is composed of a frame body 55c, a part of the frame body 55a of the first chamber R1, and a part of the frame body 55b of the second chamber R2. As a result, it is possible to suppress the reduction of the volume due to the walls constituting the first chamber R1, the second chamber R2, and the first intermediate chamber R3.

Further, the first intermediate chamber R3 is located between the first chamber R1 and the second chamber R2. Further, the front plate portion 55a1 of the frame body 55a of the first chamber R1 is configured to be arranged substantially linearly in the left-right direction with the front plate portions 55c1 and 55c1 of the frame body 55c. Further, the front plate portion 55b1 of the frame body 55b of the second chamber R2 is configured to be arranged substantially linearly in the left-right direction with the rear plate portions 55c3 and 55c3 of the frame body 55c.

The second chamber R2 is configured to project rearward from the first intermediate chamber R3. The first intermediate chamber R3 is formed in a U-shape (U-shape) so as to cover the left and right side surfaces and the rear surface of the first chamber R1. By forming the first intermediate chamber R3 in a U shape in this way, the outlet of the first intermediate chamber R3 and the entrance of the second intermediate chamber R2 can be separated from each other, and the flow path of the second intermediate chamber R4 can be separated. Can be lengthened.

The second intermediate chamber R4 is configured to surround the entire first chamber R1, the second chamber R2, and the first intermediate chamber R3. That is, the second intermediate chamber R4 is a space R4a located in front of the first chamber R1 and the first intermediate chamber R3 and extending left and right, and a space located on the left and right sides of the first intermediate chamber R3 and extending in the front-rear direction. It has R4b, R4b, and a space R4c located behind the second chamber R2 and the first intermediate chamber R3 and extending in the left-right direction.

In the second chamber R2, the distance L1 between the rear plate portion 55b3 and the rear surface portion 51b3 of the frame body 55b is the distance L2 between the front plate portions 55a1, 55c1, 55c1 and the front surface portion 51b1, the side plate portions 55c2 and the side surface. It is formed to be shorter than the distance L3 from the portion 51b2. Further, the second intermediate chamber R4 is configured so that the distance L1 is the narrowest. This makes it difficult for steam to flow into the second intermediate chamber R4.

The partition plate 56 is arranged so as to be located in the first intermediate chamber R3. Further, the partition plate 56 is formed in a U-shape (U-shape) along the first intermediate chamber R3 in a plan view. Further, the partition plate 56 has a plate portion 56a having a shape along the rear plate portions 55c3 and 55c3 and the front plate portion 55b1 and a plate portion 56b having a shape along the side plate portion 55c2.

Further, the plate portion 56a is configured such that the distance L4 between the front plate portion 55b1 and the rear plate portions 55c3 and 55c3 is shorter than the distance L5 between the front plate portion 55a3 and the rear plate portion 55a3. Further, the plate portion 56b is configured such that the distance L6 from the side plate portion 55c2 is shorter than the distance L7 from the side plate portion 55a2.

Further, the front end (end portion) of the plate portion 56b is separated from the front plate portion 55c1.

FIG. 6 is a sectional view taken along line VI-VI of FIG. Note that FIG. 6 shows a state in which the inflow portion 57 (inflow port 57b) and the return hole (return port) 59 are cut at the center in the left-right direction.
As shown in FIG. 6, when the lower case 52 is closed by the upper case 51, the lower end (tip) of the front plate portion 55a1 is formed with a gap S1 with the bottom surface 52a1 (upper surface of the bottom plate 52a) of the lower case 52. There is. Further, at the lower end (tip) of the front plate portion 55b1, a minute gap S2 is formed with the bottom surface 52a1 of the lower case 52.

Further, the first chamber R1 and the first intermediate chamber R3 communicate with each other by a notch 55s in the lower portion in the vertical direction (vertical direction). Further, the second chamber R2 and the second intermediate chamber R4 communicate with each other by a notch 55t.

The upper and lower surfaces (upper surface and lower surface) of the first chamber R1 are composed of a ceiling surface (lower surface) 51a1 of the upper case 51 and a bottom surface 52a1 (bottom plate 52a) of the lower case 52. Further, the side surface (front-back, left-right side surface) of the first chamber R1 is composed of a front plate portion 55a1, side plate portions 55a2, 55a2 (see FIG. 5), and a rear plate portion 55a3. The area surrounded by the upper surface, the lower surface and the four side surfaces is the first chamber R1. The volume of the first chamber R1 at that time is V1.

The upper and lower surfaces (upper surface and lower surface) of the second chamber R2 are composed of the ceiling surface (lower surface) 51a1 of the upper case 51 and the bottom surface 52a1 (bottom plate 52a) of the lower case 52, similarly to the first chamber R1. There is. The side surfaces (front, rear, left, and right sides) of the second chamber R2 are composed of a front plate portion 55b1, side plate portions 55b2, 55b2 (see FIG. 5), and a rear plate portion 55b3. The area surrounded by these upper surface, lower surface and side surface is the second chamber R2. The volume of the second chamber R2 at that time is V2.

The upper and lower surfaces (upper surface and lower surface) of the first intermediate chamber R3 are composed of a ceiling surface (lower surface) 51a1 of the upper case 51 and a bottom surface 52a1 (bottom plate 52a) of the lower case 52, similarly to the first chamber R1. ing. Further, the side surfaces (front, rear, left, and right sides) of the first intermediate chamber R3 include side plate portions 55a2, 55a2, rear plate portions 55a3, front plate portions 55c1, 55c1 (see FIG. 5), and side plate portions 55c2, 55c2. It is composed of a rear plate portion 55c3 and 55c3 (see FIG. 5) and a front plate portion 55b1. The region surrounded by the upper surface, the lower surface and the side surface is the first intermediate chamber R3. The volume of the first intermediate chamber R3 at that time is V3.

The upper and lower surfaces (upper surface and lower surface) of the second intermediate chamber R4 are composed of a ceiling surface (lower surface) 51a1 of the upper case 51 and a bottom surface 52a1 (bottom plate 52a) of the lower case 52, similarly to the first chamber R1. ing. Further, the side surfaces (front, rear, left and right sides) of the second intermediate chamber R4 are the inner wall surface of the side plate 51b of the upper case 51 (inner wall of the front surface portion 51b1, the inner wall of the side surface portions 51b2, 51b2, the inner wall of the rear surface portion 51b3) and the lower surface. The inner wall surface of the side plate 52b of the case 52 (inner wall of the front surface portion 52b1, the inner wall of the side surface portions 52b2, 52b2, the inner wall of the rear surface portion 52b3), the front plate portions 55a1, 55c1, 55c1, the side plate portions 55c2, 55c2, and the rear plate. It is composed of portions 55c3 and 55c3, side plate portions 55b2 and 55b2, and a rear plate portion 55b3. The region surrounded by the upper surface, the lower surface and the side surface is the second intermediate chamber R4. The volume of the second intermediate chamber R4 at that time is V4.

Further, the inclined surface 51a2 which is the upper surface of the second intermediate chamber R4 arranged to face the notch 55t is the second intermediate chamber R4 arranged to face the notch 55u (see FIGS. 3 and 7). It is formed lower in the vertical direction than the ceiling surface 51a1 which is the upper surface.

FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. Note that FIG. 7 shows a state in which the side plate portion 55a2 of the first chamber R1 and the plate portion 56b of the partition plate 56 and the notch portion 55u of the first intermediate chamber R3 are cut along the front-rear direction. ..
As shown in FIG. 7, when the lower case 52 is closed by the upper case 51, the upper end (tip) 56s of the partition plate 56 is configured such that a gap S21 is formed with respect to the ceiling surface 51a1 of the upper case 51. Has been done.

Further, the second intermediate chamber R4 and the first intermediate chamber R3 communicate with each other via the notch 55u in the lower portion in the vertical direction (vertical direction). Further, the height of the notch portion 55u is formed to be lower than the height of the partition plate 56.

Further, the ceiling surface 51a1 of a part of the second intermediate chamber R4 located behind the first intermediate chamber R3 is composed of a horizontal plane on the front side and an inclined surface 51a2 on the rear side downward toward the rear.

As described above, the steam recovery unit 5A is divided into a first chamber R1, a second chamber R2, a first intermediate chamber R3, and a second intermediate chamber R4. The first chamber R1 is formed at a position where an inflow portion 57 into which steam flows is provided (see FIG. 6).

The second chamber R2 is formed at a position where the discharge port 51s is provided (see FIG. 6). Further, the second chamber R2 is arranged behind the first chamber R1 so as to be separated from each other (see FIGS. 5 and 6). Further, the second chamber R2 has the same width in the left-right direction as the first chamber R1 and is formed to have a shorter length in the front-rear direction. Further, the second chamber R2 is formed so as to project rearward from the rear end of the first intermediate chamber R3.

The first intermediate chamber R3 is formed so as to surround the outside of the first chamber R1, specifically, the left and right sides and the rear. Further, a part of the first intermediate chamber R3 is located between the first chamber R1 and the second chamber R2.

The second intermediate chamber R4 is arranged so as to surround the entire first chamber R1, the second chamber R2, and the first intermediate chamber R3. In other words, the second intermediate chamber R4 is located on the outermost periphery of the internal space of the steam recovery unit 5A.

Further, the volume V4 of the second intermediate chamber R4 is formed to be larger than the volume V3 of the first intermediate chamber R3. The volume V3 of the first intermediate chamber R3 is formed to be larger than the volume V1 of the first chamber R1. The volume V1 of the first chamber R1 is formed to be larger than the volume V2 of the second chamber R2. Further, the volume V2 of the second chamber R2 is formed to be smaller than the volume obtained by adding the volume V1, the volume V3, and the volume V4. Further, in the present embodiment, the volume V2 is formed to be smaller than any of the volumes V1, V3, and V4. That is, the volume V2 is the minimum volume.

FIG. 8 is a perspective view showing the steam recovery unit of FIG. In FIG. 8, the flow of steam is indicated by an arrow.
As shown in FIG. 8, as shown by the arrow F1, the steam (water vapor) flowing into the first chamber R1 from the inflow portion 57 is lighter than the air, and therefore starts to accumulate from the upper part of the first chamber R1. Since the frame body 55a constituting the first chamber R1 is formed so as to extend from the ceiling surface 51a1 of the upper case 51, steam does not leak to the outside from the upper part of the first chamber R1. Then, when the lower surface of the vapor layer descends from the first chamber R1 and descends to a position lower than the height position of the notch 55s communicating the first chamber R1 and the first intermediate chamber R3, the arrow F2 indicates. As shown, steam flows out from the first chamber R1 to the first intermediate chamber R3. At this time, the steam flowing out from the cutout portion 55s hits the partition plate 56. Since the partition plate 56 is formed so as to extend from the lower case 52, it is designed so as not to flow directly into the second chamber R2 through the gap S2 (see FIG. 6) (so as not to make a shortcut).

Then, the steam flowing out from the cutout portion 55s begins to accumulate from above in the first intermediate chamber R3. Further, the steam flowing out from the cutout portion 55s heads toward the ceiling surface 51a1 (see FIGS. 6 and 7) along the partition plate 56, and after the upper portion of the first intermediate chamber R3 is filled with steam, the steam flows out from the cutout portion 55u. It flows out. Since the frame body 55c constituting the first intermediate chamber R3 is formed so as to extend downward from the ceiling surface 51a1 of the upper case 51, steam leaks to the outside from the upper part of the first intermediate chamber R3. There is no. Then, when the lower surface of the vapor layer descends from the first intermediate chamber R3 and descends to a position lower than the height position of the notches 55u and 55u communicating the first intermediate chamber R3 and the second intermediate chamber R4. , As shown by the arrow F3, steam flows out from the first intermediate chamber R3 to the second intermediate chamber R4.

Then, the steam flowing out from the notch portion 55u begins to accumulate from above in the second intermediate chamber R4. Since the outer peripheral side of the second intermediate chamber R4 is sealed by the side plate 51b of the upper case 51 and the side plate 52b of the lower case 52, steam does not leak to the outside any more. Further, on the inner peripheral side of the second intermediate chamber R4, the frame body 55c of the first intermediate chamber R3 and the frame body 55b of the second chamber R2 are formed so as to extend from the ceiling surface 51a1 of the upper case 51. It does not flow into the 2 room R2. Then, when the lower surface of the vapor layer descends from the second intermediate chamber R4 and descends to a position lower than the height position of the notch 55t communicating the second intermediate chamber R4 and the second chamber R2, the arrow F4 As shown by, steam flows from the second intermediate chamber R4 into the second chamber R2.

Then, the steam that has flowed into the second chamber R2 is discharged to the outside of the steam recovery unit 5A (see FIG. 1) from the discharge port 51s formed in the upper part of the second chamber R2.

The dew condensation water generated in the first chamber R1 is returned from the return hole 59 (see FIGS. 5 and 6) to the inner lid 11 (see FIG. 1) through the steam passage 4c (see FIG. 1). Further, the dew condensation water generated in the first intermediate chamber R3 flows into the first chamber R1 through the gap between the frame body 55a and the bottom plate 52a, and returns to the inner lid 11 through the return hole 59. Further, the dew condensation water generated in the second intermediate chamber R4 flows into the first chamber R1 through the gap between the frame body 55c and the bottom plate 52a and the gap between the frame body 55a and the bottom plate 52a. It returns to the inner lid 11 through the return hole 59. The dew condensation water blocked by the partition plate 56 flows around the outer periphery of the first intermediate chamber R3 along the partition plate 56, and flows from both left and right ends of the partition plate 56 to the inner circumference of the partition plate 56. Then, it flows into the first chamber R1 through the gap between the frame body 55a and the bottom plate 52a of the first chamber R1.

The rice cooker 1 is configured so that steam is not discharged from the discharge port 51s of the steam recovery unit 5A in a normal (generally used) rice cooking course. As a result, the outside of the rice cooker 1 is not humidified by steam.

As described above, in the rice cooker 1 of the first embodiment, the main body 2, the inner pot 3 detachably stored in the main body 2, the outer lid 4 covering the upper part of the main body 2, and the outer lid 4 It is equipped with a steam recovery unit 5A that is attached and recovers the steam generated in the inner pot 3. The steam recovery unit 5A surrounds the inflow port 57b into which steam flows in, the discharge port 51s for discharging steam to the outside of the main body 2, the first chamber R1 surrounding the inflow port 57b, and the periphery of the discharge port 51s. A second chamber R2 and an intermediate chamber provided between the first chamber R1 and the second chamber R2 (the sum of the first intermediate chamber R3 and the second intermediate chamber R4) are provided. The volume V2 of the second chamber R2 is smaller than the volumes V3 and V4 of the intermediate chamber (the sum of the first intermediate chamber R3 and the second intermediate chamber R4). As a result, the steam emitted from the intermediate chamber (first intermediate chamber R3) is not immediately discharged from the discharge port 51s. Further, since the volumes V3 and V4 of the intermediate chambers (first intermediate chamber R3 and second intermediate chamber R4) can be secured large, a large amount of steam can be stored before being introduced into the second intermediate chamber R2. As a result, it is possible to suppress the discharge of steam from the discharge port 51s communicating with the second chamber.

Further, in the first embodiment, the intermediate chamber includes a first intermediate chamber communicated with the first chamber R1 and a second intermediate chamber R4 communicated with the second chamber R2. As a result, by dividing the intermediate chamber into the first intermediate chamber R3 and the second intermediate chamber R4, it becomes difficult for steam to flow into the second chamber, and it is possible to suppress the discharge of steam from the discharge port 51s.

Further, in the first embodiment, the notch 55s that communicates the first chamber R1 and the first intermediate chamber R3 in the lower portion in the vertical direction, and the second chamber R2 and the second intermediate chamber R4 communicate with each other in the lower portion in the vertical direction. A notch 55t is provided, and a notch 55u that communicates the first intermediate chamber R3 and the second intermediate chamber R4 at the lower portion in the vertical direction is provided. As a result, steam is preferentially discharged from the first chamber R1 to the first intermediate chamber R3 through the notch 55s, and steam is preferentially discharged from the first intermediate chamber R3 to the second intermediate chamber R4 through the notch 55t. That is, steam can be preferentially discharged from the second intermediate chamber R4 to the second chamber R2 through the notch 55u. In this way, steam can be accumulated in order from the first chamber R1 and then discharged to the next chamber.

Further, in the first embodiment, the notch portion 55t and the notch portion 55u are formed so as to face each other in opposite directions. As a result, the steam flowing out from the notch portion 55u can be moved a long distance and then introduced into the second chamber, so that it is possible to suppress the steam from being discharged from the discharge port 51s.

Further, in the first embodiment, the first chamber R1 and the second chamber R2 are arranged so as to be separated from each other with the first intermediate chamber R3 interposed therebetween. As a result, it is possible to suppress the direct flow of steam from the first chamber R1 to the second chamber, and it is possible to suppress the discharge of steam from the discharge port 51s.

Further, the first embodiment includes a partition plate 56 for partitioning the first intermediate chamber R3, and the partition plate 56 is located at least between the first chamber R1 and the second chamber R2. As a result, it is possible to further suppress the direct flow of steam from the first chamber R1 to the second chamber R2, so that it is possible to suppress the discharge of steam from the discharge port 51s.

Further, in the first embodiment, the partition plate 56 is formed so that the distance L2 from the second chamber R2 is shorter than the distance L1 from the first chamber R1. As a result, the steam flowing out from the first chamber R1 can be made difficult to get over the partition plate 56, and the steam flowing out from the first intermediate chamber R3 to the second chamber R2 can be suppressed.

Further, the first embodiment is formed so that the volume V2 of the second chamber R2 is smaller than the volume V1 of the first chamber R1. As a result, it is possible to secure a large volume V3 of the first intermediate chamber R3 and a large volume V4 of the second intermediate chamber R4. As a result, it becomes difficult for steam to flow into the second chamber R2, and it becomes difficult for steam to be discharged from the discharge port 51s.

Further, in the first embodiment, the second intermediate chamber R4 has a shape that surrounds the entire first chamber R1, the second chamber R2, and the first intermediate chamber R3. As a result, a long distance through which steam flows in the second intermediate chamber R4 can be secured, and the space inside the steam recovery unit can be effectively used.

Further, in the first embodiment, the inclined surface 51a2 (upper surface) of the second intermediate chamber R4 facing the notch 55t is formed lower than the ceiling surface 51a1 (upper surface) of the second intermediate chamber R4 facing the notch 55u. (See FIGS. 5 and 6). As a result, it becomes difficult for steam to flow into the second intermediate chamber R4 facing the cutout portion 55u, and it is possible to suppress the discharge of steam from the discharge port 51s.

(Second Embodiment)
FIG. 9 is a perspective view showing a steam recovery unit provided in the rice cooker of the second embodiment. The rice cooker of the second embodiment is a steam recovery unit 5B instead of the steam recovery unit 5A of the first embodiment. Therefore, in the following, only the steam recovery unit 5B will be described. For the same configuration as that of the first embodiment, the same reference numerals are given and duplicated description will be omitted.

As shown in FIG. 9, the steam recovery unit 5B (steam recovery unit) of the second embodiment has a flat shape formed by combining the upper case 61 and the lower case 62. The upper case 61 is formed with two discharge ports 61s and 61s (communication ports) from which steam (steam) is discharged. The discharge port 61s is a round hole or a square hole, and is formed so as to be separated in the left-right direction. Further, the discharge port 61s is located closer to the front in the front-rear direction. Further, the upper case 61 is formed with an inclined surface 61d that is inclined toward the rear side behind the discharge port 61s.

Further, in the steam recovery unit 5B, an L-shaped hook 63 is rotatably supported on the upper case 61. The hook 63 is formed in the center in the left-right direction (width direction). Further, the tip of the hook 63 is hooked on the lower surface of the lower case 62, so that the upper case 61 and the lower case 62 are locked.

FIG. 10 is a front view of the steam recovery unit.
As shown in FIG. 10, the steam recovery unit 5B has a space inside by being surrounded by the upper case 61 and the lower case 62. Further, the upper plate 61a of the upper case 61 is formed so as to be curved so as to be slightly convex upward. The bottom plate 62a of the lower case 62 is formed so as to be slightly convex downward.

The upper case 61 has an upper plate 61a constituting the surface of the rice cooker 1 and a side plate 61b extending from a substantially outer peripheral edge portion of the upper plate 61a toward the lower case 62. The side plate 61b has a front surface portion 61b1 facing forward, side surface portions 61b2, 61b2 facing left and right sides, and a rear surface portion 61b3 facing rearward (see FIG. 12).

The lower case 62 has a bottom plate 62a facing the bottom surface 4a1 (see FIG. 1) of the recess 4a (see FIG. 1), and a side plate 62b extending from the outer peripheral edge of the bottom plate 62a toward the upper case 61. There is. The side plate 62b has a front surface portion 62b1 facing forward, side surface portions 62b2, 61b2 facing left and right sides, and a rear surface portion 62b3 facing rearward (see FIG. 12).

11 is a cross-sectional view taken along the line XI-XI of FIG. Note that FIG. 11 shows a state in which the inflow portion 57 is cut so as to pass slightly below the inflow port 57b.
As shown in FIG. 11, the upper case 61 (see FIG. 10) is formed with a frame body 65a constituting the first room R11 (first room, first space). The frame body 65a is formed in a substantially square cylinder shape, and is formed so as to extend downward in the vertical direction from the ceiling surface 61a1 (see FIG. 12) inside the upper case 61.

The frame body 65a has a front plate portion 65a1 facing forward, side plate portions 65a2, 65a2 facing left and right sides, and a rear plate portion 65a3 facing rearward. The inflow portion 57 is arranged at a position close to the front plate portion 65a1. Further, the inflow port 57b is formed so as to open toward the front plate portion 65a1 (see FIG. 12).

Further, in the upper case 61, the second room (one second room) R12 and the second room (the other second room) R12 (second room, second room) are in contact with the first room R1 on the left and right. The frame bodies 65b and 65b constituting the space) are formed. The frame body 65b is formed in a substantially square cylinder shape, and is formed so as to extend downward from the ceiling surface 51a1 in the vertical direction. Further, the second chamber R12 is formed to have a wider width in the left-right direction and a shorter length in the front-rear direction than the first chamber R11.

The frame body 65b has a front plate portion 65b1 facing forward, a side plate portion 65b2 facing sideways, and a rear plate portion 65b3 facing rearward. A part of the second chamber R12 is shared with the side plate portion 65a2 of the first chamber R11.

Further, in the upper case 61, the first intermediate chamber R3 (third room, third space) is located outside the horizontal direction of the first chamber R1 (horizontal direction when the upper case 51 and the lower case 52 are closed). ) Is formed. The frame body 65c is formed in a substantially square cylinder shape, and is formed so as to extend downward from the ceiling surface 61a1 in the vertical direction.

The frame body 65c has a side plate portion 65c2 and 65c2 facing sideways and a rear plate portion 65c3 facing rearward. A part of the first intermediate chamber R13 is shared with a part of the side plate portions 65a2 and 65a2 of the first chamber R11 and the rear plate portion 65a3, and is one of the rear plate portions 65b3 and 65b3 of the second chambers R12 and R12. It is shared with the department.

Further, in the upper case 61, a first intermediate chamber R13 (third chamber, third space) is formed behind the first chamber R11 and the second chambers R12 and R12. The first intermediate chamber R13 is formed in a substantially U-shape (U-shape) in a cross-sectional view.

Further, the second intermediate chamber R14 is configured to surround the entire first chamber R11, the second chamber R12, R12 and the first intermediate chamber R13.

In the lower case 62, the bottom plate 62a is formed with an inflow portion 57 for allowing steam to flow into the steam recovery unit 5B, as in the first embodiment. The inflow portion 57 has a cylindrical portion 57a extending upward in the vertical direction from the bottom surface 62a1 (see FIG. 12). An inflow port 57b (see FIG. 12) is formed on the upper portion of the cylindrical portion 57a. The inflow port 57b is formed so as to face forward (front surface portion 52b1 side) (see FIG. 12).

Further, the lower case 62 is formed with a partition plate 66 directed upward in the vertical direction from the bottom surface 62a1 of the bottom plate 62a. The partition plate 66 is formed in a U-shape (U-shape) in a cross-sectional view, and has a plate portion 66a extending in the left-right direction and plate portions 66b and 66b extending forward from both left and right ends of the plate portion 66a. have. The partition plate 66 is arranged in the first intermediate chamber R13 when the upper case 61 and the lower case 62 are combined.

FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG.
As shown in FIG. 12, when the lower case 62 is closed by the upper case 61, the lower end (tip) of the front plate portion 65a1 is formed with a small gap S11 with the bottom surface 62a1 (upper surface of the bottom plate 52a) of the lower case 62. Has been done.

A notch 65s (first communication portion) notched in a concave shape is formed at the lower portion of the rear plate portion 65a3 in the vertical direction (vertical direction). The cutout portion 65s is configured to communicate the first chamber R11 and the first intermediate chamber R13.

A notch 65u (intermediate communication portion) notched in a concave shape is formed at the lower portion of the rear plate portion 65c3 in the vertical direction (vertical direction). The notch portion 65u is configured to communicate the first intermediate chamber R13 and the second intermediate chamber R4.

The upper and lower surfaces (upper surface and lower surface) of the first chamber R11 are composed of a ceiling surface (lower surface) 61a1 of the upper case 61 and a bottom surface 62a1 (bottom plate 62a) of the lower case 62. Further, the side surface (front, rear, left and right side surfaces) of the first chamber R11 is composed of a front plate portion 65a1, side plate portions 65a2, 65a2 (see FIG. 11), and a rear plate portion 65a3. The area surrounded by the upper surface, the lower surface and the side surface is the first chamber R11. The volume of the first chamber R11 at that time is V11.

FIG. 13 is a cross-sectional view taken along the line XIII-XIII of FIG.
As shown in FIG. 13, when the lower case 62 is closed by the upper case 61, the lower end (hull) of the rear plate portion 65b3 is formed with a small gap S12 with the bottom surface 62a1 (upper surface of the bottom plate 52a) of the lower case 62. Has been done.

Further, at the lower end (tip) of the rear plate portion 65c3, a minute gap S13 is formed with the bottom surface 62a1 of the lower case 62.

A notch 65t (second communication portion) notched in a concave shape is formed in the lower portion of the front plate portion 65b1 in the vertical direction (vertical direction). The notch portion 65t is configured to communicate the second intermediate chamber R14 and the second chamber R12. Further, the height (depth) of the notch portion 65t is formed to be lower (shallow) than the notch portions 65s and 65u described above.

The upper and lower surfaces (upper surface and lower surface) of the second chamber R12 are composed of a ceiling surface (lower surface) 61a1 of the upper case 61 and a bottom surface 62a1 (bottom plate 62a) of the lower case 62. Further, the side surface (front, rear, left and right side surfaces) of the second chamber R12 is composed of a front plate portion 65b1, a side plate portion 65b2, 65b2 (see FIG. 11), and a rear plate portion 65b3. The area surrounded by the upper surface, the lower surface and the side surface is the second chamber R12. The volume of the second chamber R12 at that time is V12.

The upper and lower surfaces (upper surface and lower surface) of the first intermediate chamber R13 are composed of a ceiling surface (lower surface) 61a1 of the upper case 61 and a bottom surface 62a1 (bottom plate 62a) of the lower case 62. Further, the side surfaces (front, rear, left and right sides) of the first intermediate chamber R13 include side plate portions 65c2, 65c2, rear plate portions 65c3, rear plate portions 65b3, 65b3, side plate portions 65a2, 65a2, and rear plate portions 65a3. , Consists of. The region surrounded by the upper surface, the lower surface and the side surface is the first intermediate chamber R3. The volume of the first intermediate chamber R13 at that time is V13.

The upper and lower surfaces (upper surface and lower surface) of the second intermediate chamber R14 are composed of a ceiling surface (lower surface) 61a1 of the upper case 61 and a bottom surface 62a1 (bottom plate 62a) of the lower case 62. Further, the side surfaces (front, rear, left and right sides) of the second intermediate chamber R14 are the inner wall surface of the side plate 61b of the upper case 61 (inner wall of the front surface portion 61b1, the inner wall of the side surface portions 61b2, 61b2, the inner wall of the rear surface portion 61b3) and the lower surface. The inner wall surface of the side plate 62b of the case 62 (inner wall of the front surface portion 62b1, the inner wall of the side surface portion 62b2, 62b2, the inner wall of the rear surface portion 62b3), the front plate portion 65a1, 65b1, 65b1, and the side plate portion 65b2, 65b2, 65c2, 65c2. And the rear plate portion 65b3, 65b3, 65c3. The region surrounded by the upper surface, the lower surface and the side surface is the second intermediate chamber R14. The volume of the second intermediate chamber R14 at this time is V14.

Further, the volume V14 of the second intermediate chamber R14 is formed to be larger than the volume V13 of the first intermediate chamber R13. The volume V13 of the first intermediate chamber R13 is formed to be larger than the volume V11 of the first chamber R11. The volume V11 of the first chamber R11 is formed to be larger than the volume V12 of the second chamber R12. Further, the volume V12 of the second chamber R12 is formed to be smaller than the volume (volume of the intermediate chamber) obtained by adding the volume V13 and the volume V14. Further, in the present embodiment, the volume V12 is formed to be smaller than any of the volumes V11, V13, and V14. That is, the volume V12 is the minimum volume.

FIG. 14 is a perspective view showing the steam recovery unit of FIG. In FIG. 8, the flow of steam is indicated by an arrow. Further, FIG. 14 shows a state of cutting at the position of the inflow port 57b, which is higher than that of FIG. 11.
As shown in FIG. 14, as shown by the arrow F11, the steam (steam) flowing into the first chamber R11 from the inflow port 57b starts to accumulate from the upper part of the first chamber R11. Since the frame body 65a constituting the first chamber R11 is formed so as to extend downward from the ceiling surface 61a1 of the upper case 61, steam does not leak from the upper part of the first chamber R11 to the outside. .. Then, when the lower surface of the vapor layer descends from the first chamber R11 and descends to a position lower than the height position of the notch 65s communicating the first chamber R11 and the first intermediate chamber R13, the arrow F12 indicates. As shown, steam flows out from the first chamber R11 to the first intermediate chamber R13. At this time, the steam flowing out from the cutout portion 65s hits the partition plate 66. Since the partition plate 66 is formed in the lower case 62, it is designed so as not to flow directly into the notch portion 65u of the first intermediate chamber R13 (so as not to make a shortcut).

Then, the steam flowing out from the notch portion 65s begins to accumulate from above in the first intermediate chamber R13. Since the frame body 65c constituting the first intermediate chamber R13 is formed downward from the ceiling surface 61a1 of the upper case 61, steam does not leak to the outside from the upper part of the first intermediate chamber R13. .. Then, when the lower surface of the vapor layer descends from the first intermediate chamber R13 and descends to a position lower than the height position of the notch portion 65u communicating the first intermediate chamber R13 and the second intermediate chamber R14, the arrow indicates. As shown by F13, steam flows out from the first intermediate chamber R13 to the second intermediate chamber R14.

Then, the steam flowing out from the notch portion 65u flows along the flow path of the second intermediate chamber R14 and starts to accumulate from above in the second intermediate chamber R14. Since the outer peripheral side of the second intermediate chamber R14 is sealed by the side plate 61b of the upper case 61 and the side plate 62b of the lower case 62, steam does not leak to the outside any more. Further, on the inner peripheral side of the second intermediate chamber R14, the frame body 65c of the first intermediate chamber R13 and the frame body 65b of the second chamber R12 are formed downward from the ceiling surface 61a1 of the upper case 61. , Does not flow directly into the second chamber R12. Then, when the lower surface of the vapor layer descends from the second intermediate chamber R14 and descends to a position lower than the height position of the notch portion 65t communicating the second intermediate chamber R14 and the second chamber R12, the arrow F14 As shown by, steam flows from the second intermediate chamber R14 into the second chamber R12.

Then, the steam that has flowed into the second chamber R12 is discharged to the outside of the steam recovery unit 5B (see FIG. 9) from the discharge port 61s formed in the upper part of the second chamber R12.

The dew condensation water generated in the first chamber R11 is returned from the return hole 59 (see FIGS. 11 and 12) to the inner lid 11 (see FIG. 1) through the steam passage 4c (see FIG. 1). Further, the dew condensation water generated in the first intermediate chamber R13 flows into the first chamber R11 through the gap between the frame body 65a and the bottom plate 62a, and returns to the inner lid 11 through the return hole 59. Further, the dew condensation water generated in the second intermediate chamber R14 flows into the first chamber R11 through the gap between the frame body 65c and the bottom plate 62a and the gap between the frame body 65a and the bottom plate 62a. It returns to the inner lid 11 through the return hole 59. The dew condensation water blocked by the partition plate 66 flows along the partition plate 66, and flows into the inside of the partition plate 66 from both left and right ends of the partition plate 66. Then, it flows into the first chamber R11 through the gap between the frame body 65a of the first chamber R11 and the bottom plate 62a.

The rice cooker 1 is configured so that steam is not discharged from the discharge port 51s of the steam recovery unit 5A in a normal (generally used) rice cooking course.

As described above, in the rice cooker of the second embodiment, the discharge ports 61s and 61s are formed at two positions, and the second chambers R12 and R12 are formed at positions corresponding to the respective discharge ports 61s and 61s. There is. Further, the first chamber R11 is located between the second chamber R12 on one side and the second chamber R12 on the other side. As a result, the volumes V13 and V14 of the intermediate chambers (first intermediate chamber R13 and second intermediate chamber R14) can be secured large, and a large amount of steam can be stored before the second chambers R12 and R12. As a result, it is possible to suppress the discharge of steam from the discharge ports 61s and 61s communicating with the second chambers R12 and R12.

Further, in the second embodiment, the volume V12 of one second chamber R12 and the volume V12 of the other second chamber R12 are smaller than the volume V11 of the first chamber R11, respectively. As a result, the volumes V13 and V14 of the intermediate chambers (first intermediate chamber R13 and second intermediate chamber R14) can be secured to be large, so that the discharge of steam from the discharge port 61s can be further suppressed.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be implemented in various forms. For example, in the above-described embodiment, the square steam recovery units 5A and 5B have been described as an example, but a circular steam recovery unit may be used. In this case, the first chambers R1 and R11 are circular, the first intermediate chambers R3 and R13 are curved along the first chambers R1 and R11, and the second chamber R2 is curved along the first intermediate chamber R3. The second chamber R12 may have a curved shape along the first chamber R1.

Further, in the above-described embodiment, a case where the room is divided into four rooms, the first room R1, R11, the second room R2, R12, the first intermediate room R3, R13, and the second middle room R4, R14, is taken as an example. As described above, the first intermediate chambers R3 and R13 and the second intermediate chambers R4 and R14 may be combined into one intermediate chamber.

Further, in the above-described embodiment, the case where the first chamber R1, R11, the second chamber R2, R12, and the first intermediate chamber R3, R13 are in contact with each other has been described as an example, but each of them is formed independently. You may.

1 Rice cooker 2 Main body 3 Inner pot 4 Outer lid (lid)
5A, 5B steam recovery unit (steam recovery unit)
11 Inner lid 51,61 Upper case 51a1 Ceiling surface (upper surface)
51a2 Inclined surface (upper surface)
51s, 61s outlet (communication port)
52, 62 Lower case 55s, 65s Notch (first communication part)
55t, 65t notch (second communication part)
55u, 65u Notch (intermediate communication part)
56, 66 Partition plate 57 Inflow part 57b Inflow port R1, R11 1st room R2, R12 2nd room R3, R13 1st intermediate room (intermediate room)
R4, R14 2nd intermediate room (intermediate room)
R12 2nd room (2nd room on one side, 2nd room on the other side)
V1, V11 volume (volume of the first room)
V2 volume (volume of the second chamber)
V3, V13 volume (volume of the first intermediate chamber, volume of the intermediate chamber)
V4, V14 volume (volume of the second intermediate chamber, volume of the intermediate chamber)
V12 volume (volume of one second chamber, volume of the other second chamber)

Claims (11)

With the main body
The inner pot that is detachably stored in the main body and
The lid that covers the top of the main body and
A steam recovery unit attached to the lid and recovering steam generated in the inner pot,
Equipped with
The steam recovery unit is
The inflow port into which the steam flows and
A communication port that communicates with the outside of the main body,
The first room surrounding the inlet and
The second room surrounding the communication port and
An intermediate room provided between the first room and the second room is provided.
The volume of the second chamber is smaller than the volume of the intermediate chamber,
The intermediate chamber includes a first intermediate chamber communicated with the first chamber and a second intermediate chamber communicated with the second chamber.
A first communication portion that communicates the first chamber and the first intermediate chamber in the lower part in the vertical direction,
A second communication portion that communicates the second chamber and the second intermediate chamber at the lower part in the vertical direction,
An intermediate communication portion for communicating the first intermediate chamber and the second intermediate chamber in the lower part in the vertical direction is provided.
A rice cooker characterized in that the second communication portion and the intermediate communication portion are formed so as to face opposite to each other . In the rice cooker according to claim 1 ,
A rice cooker characterized in that the first chamber and the second chamber are arranged apart from each other with the first intermediate chamber interposed therebetween. In the rice cooker according to claim 2 ,
A partition plate for partitioning the first intermediate chamber is provided.
The rice cooker is characterized in that the partition plate is located at least between the first chamber and the second chamber. In the rice cooker according to claim 3 ,
The rice cooker is characterized in that the partition plate is formed so that the distance from the second chamber is shorter than the distance from the first chamber. In the rice cooker according to any one of claims 1 to 4 .
A rice cooker characterized in that the volume of the second chamber is smaller than the volume of the first chamber. In the rice cooker according to claim 1 ,
The communication ports are formed in two places,
The second chamber is formed at a position corresponding to each of the communication ports.
A rice cooker characterized in that the first chamber is located between one of the second chambers and the other of the second chambers. In the rice cooker according to claim 6 ,
A rice cooker characterized in that the volume of one of the second chambers and the volume of the other second chamber are smaller than the volume of the first chamber, respectively. In the rice cooker according to any one of claims 1 to 7 .
The second intermediate chamber is a rice cooker having a shape that surrounds the first chamber, the second chamber, and the first intermediate chamber as a whole. With the main body
The inner pot that is detachably stored in the main body and
The lid that covers the top of the main body and
A steam recovery unit attached to the lid and recovering steam generated in the inner pot,
Equipped with
The steam recovery unit is
The inflow port into which the steam flows and
A communication port that communicates with the outside of the main body,
The first room surrounding the inlet and
The second room surrounding the communication port and
An intermediate room provided between the first room and the second room is provided.
The volume of the second chamber is smaller than the volume of the intermediate chamber,
The intermediate chamber includes a first intermediate chamber communicated with the first chamber and a second intermediate chamber communicated with the second chamber.
The first chamber and the second chamber are arranged apart from each other with the first intermediate chamber in between.
A partition plate for partitioning the first intermediate chamber is provided.
The rice cooker is characterized in that the partition plate is located at least between the first chamber and the second chamber . With the main body
The inner pot that is detachably stored in the main body and
The lid that covers the top of the main body and
A steam recovery unit attached to the lid and recovering steam generated in the inner pot,
Equipped with
The steam recovery unit is
The inflow port into which the steam flows and
A communication port that communicates with the outside of the main body,
The first room surrounding the inlet and
The second room surrounding the communication port and
An intermediate room provided between the first room and the second room is provided.
The volume of the second chamber is smaller than the volume of the intermediate chamber,
The intermediate chamber communicates with the first intermediate chamber provided in communication with the first chamber and the second chamber.
It is equipped with a second intermediate room to be provided.
The communication ports are formed in two places,
The second chamber is formed at a position corresponding to each of the communication ports.
A rice cooker characterized in that the first chamber is located between one of the second chambers and the other of the second chambers . With the main body
The inner pot that is detachably stored in the main body and
The lid that covers the top of the main body and
A steam recovery unit attached to the lid and recovering steam generated in the inner pot,
Equipped with
The steam recovery unit is
The inflow port into which the steam flows and
A communication port that communicates with the outside of the main body,
The first room surrounding the inlet and
The second room surrounding the communication port and
An intermediate room provided between the first room and the second room is provided.
The volume of the second chamber is smaller than the volume of the intermediate chamber,
The intermediate chamber communicates with the first intermediate chamber provided in communication with the first chamber and the second chamber.
It is equipped with a second intermediate room to be provided.
A first communication portion that communicates the first chamber and the first intermediate chamber in the lower part in the vertical direction,
A second communication portion that communicates the second chamber and the second intermediate chamber at the lower part in the vertical direction,
An intermediate communication portion that communicates the first intermediate chamber and the second intermediate chamber in the lower part in the vertical direction,
Equipped with
The second intermediate chamber is a rice cooker having a shape that surrounds the first chamber, the second chamber, and the first intermediate chamber as a whole .

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