JP6745236B2 - Cooker - Google Patents

Description

The present invention is a cooker body for accommodating a cooking pot with an upper opening,
Heating means provided in the cooker main body for heating the cooking pot in the housed state,
A lid provided to the cooker body so as to be openable and closable,
The lid includes an outer lid and an inner lid that is detachably provided on a side of the outer lid that faces the cooking pot and that closes an upper end opening of the cooking pot when the lid is closed. ,
The present invention relates to a heating cooker in which steam generated from the cooking pot flows into the lid side and flows out of the lid from the steam outlet through the vapor circulation space.

When a cooked food is cooked with high heat using a heating cooker, spillage may occur. The spillage occurs when the vapor contains a viscous liquid substance in the form of bubbles. Such a spillage undesirably pollutes the steam outlet. Further, the sticky liquid substance is so-called "oneba" which is a starchy substance when rice is cooked, boiled soup and the like when a stewed food is cooked, and contains an umami component. Conventionally, measures against such a spillage have been mainly taken by a steam unit (sometimes called a steam distribution space set) (Patent Documents 1 and 2).

In the heating cooker disclosed in Patent Document 1, the steam unit 35 is located at the upper part of the lid, in the vicinity of the steam outlet 36 of the steam passage 32, that is, at the most downstream side of the exhaust flow path. However, when many steam bars are to be stored in the steam unit 35, the steam unit 35 becomes large in size, and for example, when a lid heating section or a pressure regulating valve is to be provided in the lid body, a sufficient space for them is secured. Can not.

Therefore, in the technique disclosed in Document 1, an inner lid cover 66 is further arranged on the side of the inner lid 27 that faces the inside of the cooking pot 10, and the outer wall portion 70 of the inner lid cover 66 is provided with the inner lid 27. A plurality of ventilation parts 71 communicating with each other are provided.
By adopting this configuration, the storage space formed between the inner lid cover 66 and the inner lid 27 can be used for the separation of the liquid substance (including the bean).

On the other hand, in the technique disclosed in Patent Document 2, the attachment collar of the vapor distribution space set 14 is intended to facilitate the maintenance of the vapor distribution space set 14 attached to the heat dissipation plate 12 of the inner lid set 8. A magnet 28 is attached to the lower surface of the steam generator 16, and the magnet 28 allows the steam circulation space set 14 to be attached to and detached from the heat dissipation plate 12.

In the steam distribution space set 14 of this document, an arc-shaped picture wall 24 is provided inside a case 15 that forms a housing. One end of this picture wall 24 is integrated with the inner surface of the case 15 to form a crescent-shaped container. A side chamber 25 is formed, and the other end of the drawing wall 24 is brought close to the inner surface of the case 15 to form an outlet 26 of the inlet side chamber 25. The outlet chamber 27 communicating with the exhaust port 19 is formed in a cylindrical shape [paragraph 0014].

Therefore, in the technique disclosed in this document 2, the steam that has entered the inlet chamber 25 is throttled at the outlet 26 and swirls along the inner surface of the cylindrical outlet chamber 27, and gas-liquid separation occurs during the swirling. As a result, the gas component is discharged from the exhaust port 19, and the liquid substance can be collected in the outlet chamber 27 [paragraph 0015].
Here, the communication portion that communicates with both the inlet side chamber 25 and the outlet side chamber 27 is a slit extending in the vertical direction.

JP, 2013-236796, A JP, 2002-095582, A

However, in both Patent Document 1 and Patent Document 2, a steam unit in which a bean is collected (“steam unit 35” in Patent Document 1, “steam distribution space set 14” in Patent Document 2) is formed in a predetermined housing. Therefore, even if the housing can be removed for maintenance, there is still room for improvement in maintenance and the occupied space becomes large.

Further, the technique disclosed in Patent Document 1 is a technique in which an inner lid cover is provided and a lid heating unit and a pressure regulating valve are arranged on the lid body. However, even with a relatively simple configuration that does not include the inner lid cover, steam It is preferable that the liquid substance and the liquid substance can be sufficiently separated and the volume thereof can be secured.

On the other hand, in the technique disclosed in Patent Document 2, the space inside the vapor circulation space is divided into two chambers, but since the communication portion that communicates both chambers is composed of a slit that extends in the up-down direction, basically the liquid substance It is hard to say that everything was sent to the outlet room and the space inside the steam distribution space set was fully utilized.

The main problem of the present invention is that it is possible to separate and store the liquid substance and its bubbles that enter the lid side together with steam with cooking in a limited space, and it is easy to maintain the space where the liquid substance is stored. To get a cooker that can be done.

A cooker body that houses a cooking pot with an upper opening,
Heating means provided in the cooker main body for heating the cooking pot in the housed state,
A lid provided to the cooker body so as to be openable and closable,
The lid includes an outer lid and an inner lid that is detachably provided on a side of the outer lid that faces the cooking pot and that closes an upper end opening of the cooking pot when the lid is closed. ,
The characteristic configuration of the present invention of the heating cooker in which the steam generated from the cooking pot flows into the lid side and flows out of the lid from the steam outlet through the steam circulation space,
The steam circulation space is formed between the outer lid and the inner lid,
In the steam distribution direction in the steam distribution space, a weir portion for blocking the liquid substance flowing into the steam distribution space on the upstream side in the steam distribution direction is provided,
The steam distribution space is at least divided into an upstream space located upstream of the dam portion in the steam distribution direction and a downstream space located downstream of the dam distribution direction in the steam distribution direction.

According to this configuration, the steam circulation space is divided into at least an upstream side (steam inflow side) and a downstream side (steam outflow side) in the steam circulation direction in the weir portion. Since both spaces are divided by the weir, the liquid substance and its bubbles can be separated and stored in the lower part of the upstream space. Further, since this space uses a space between the outer lid and the inner lid, it is not necessary to provide a housing for the steam unit as in the conventional case, and the inner space can be fully utilized.

Further, since the portion where the liquid substance is stored can be exposed only by removing the inner lid from the outer lid, the careability can be remarkably improved.

The characteristic configuration of the present invention is
An inner lid cover that can be mounted on the side of the inner lid facing the cooking pot,
A storage space into which steam flows from the cooking pot is provided between the inner lid cover and the inner lid in a state where the inner lid cover is attached to the inner lid, and the inner lid is provided from the storage space. It is at the point where steam flows into the steam circulation space via the.

According to this configuration, the liquid substance and the bubbles thereof can be processed using the storage space.

The characteristic configuration of the present invention is
It is provided with a pressure adjusting means for adjusting the pressure in the cooking pan, and the steam discharged from the cooking pan through the pressure adjusting means flows into the steam circulation space.

According to this configuration, since the pressure inside the cooking pot can be adjusted by providing the pressure adjusting means, the pressure cooking can be favorably performed as necessary. For example, in the case of cooked rice, so-called delicious rice can be obtained by pressure cooked rice.

The characteristic configuration of the present invention is
A steam distribution space dividing wall that divides the steam distribution space into the upstream space and the downstream space,
The vapor flow space dividing wall is provided with a communication portion that connects the upstream space and the downstream space.
The part of the vapor distribution space dividing wall located below the communication part is the weir part.

According to this configuration, the upstream space and the downstream space are divided by the vapor distribution space partition wall, and the two spaces are communicated by the communication part, so that the wall is provided with a communication part that is relatively easy to form. Parts can be formed.
Furthermore, the vapor distribution space dividing wall portion located below the communication portion serves as a weir portion, so that the liquid substance and its bubbles can be stored in the upstream space, for example.

The characteristic configuration of the present invention is
The communication portion is a communication space formed between the top surface of the steam distribution space and the upper end portion of the steam distribution space dividing wall.

According to this configuration, the communication space is formed between the upper end portion of the vapor circulation space division wall and the space top surface, so that the communication space can be formed by, for example, making the upper end of the division wall uneven.
Further, the vapor distribution space dividing wall portion acting as a weir for storing the liquid substance can be formed as high as possible, and the storage amount can be made as large as possible.

The characteristic configuration of the present invention is
The upstream space and the downstream space are arranged side by side,
There is provided a communication part that opens to the top surface of the upstream space and connects from the outlet of the opening to the downstream space, and the opening and the communication part serve as the weir part.

According to this configuration, the vapor containing the liquid substance is caused to flow to the upper side of the upstream side space through the opening formed on the top surface of the upstream side space, and the direction in which the upstream side space and the downstream side space are arranged from the outlet thereof. It will flow in the direction (it becomes the lateral direction with respect to the upward direction). As a result, the communicating portions of the upstream and downstream spaces that are divided and formed can be used as a bent path for separating the liquid substance. Further, since the opening is an opening in the vertical direction, the liquid substance separated by this opening can be dropped and guided to the upstream space.
Further, by separating the flow passage cross-sectional areas of the opening and the communication portion, it is possible to obtain a separating function by the diaphragm.

The characteristic configuration of the present invention is
An upstream space dividing wall that divides the upstream space into a first upstream space on the steam inflow side and a second upstream space into which steam flows from the first upstream space and outflows steam;
A distribution part that connects and connects the first upstream space and the second upstream space is provided at a lower portion of the upstream space.

According to this configuration, the upstream space is made into at least two spaces by the partition wall (upstream space partition wall) provided in the space, and the flow section that connects and connects the two spaces is provided. It is possible to control the flow and separate the liquid substance.

Furthermore, in the structure in which the first upstream side space and the second upstream side space are thus provided,
The characteristic configuration of the present invention is
The inner lid is provided with a pressure adjusting means for adjusting the pressure in the cooking pot, and the steam discharged from the cooking pot through the pressure adjusting means flows into the upstream side space and from the downstream side space. To adopt a configuration in which the steam is discharged to the outside through the steam outlet,
The direction from the arrangement position of the pressure adjusting means to the steam outlet is the container front-rear direction, and the upstream space and the downstream space are arranged in the container front-rear direction,
The first upstream space and the second upstream space are arranged in an intersecting direction that intersects the container front-rear direction.

When this configuration is adopted, in the configuration in which the upstream space is divided into two spaces (first upstream space/second upstream space), the two spaces are arranged in the intersecting direction and the upstream space and the downstream space are separated. By setting the arrangement in the container front-rear direction, the advancing direction from the first upstream space to the second upstream space is the intersecting direction, and the advancing direction from the second upstream space to the downstream space is the container front-rear direction. The degree of bending can be increased to sufficiently contribute to the separation of the liquid substance.
Further, by further changing the vertical position of the place where the steam flows between the spaces, a further separation effect can be obtained.

The characteristic configuration of the present invention is
The inner lid is provided with pressure adjusting means for adjusting the pressure in the cooking pot, and the steam discharged from the cooking pot through the pressure adjusting means flows into the upstream space,
With a configuration for externally discharging the steam from the downstream space via the steam outlet,
The flow passage cross-sectional area of the gas flow passage of the pressure adjusting means is S1,
The flow passage cross-sectional area of the communication portion is S2,
The flow passage cross-sectional area of the steam outlet is S3,
The cross-sectional area of each flow path is in the relationship of S1<S2<S3.

This configuration means that the flow passage cross-sectional area of the narrow portion on the downstream side in the steam flow direction from the pressure adjusting means becomes larger as it goes toward the communication portion, the steam outlet, and the downstream side. By doing so, it is possible to prevent the fluid pressure (back pressure) in the space downstream of the pressure adjusting means from affecting the upstream side, and the pressure state in the cooking pot to be adjusted by setting the pressure adjusting means. Can be maintained in a desired setting state.

The characteristic configuration of the present invention is
The inner lid is provided with a pressure adjusting means for adjusting the pressure in the cooking pot, and the steam discharged from the cooking pot through the pressure adjusting means flows into the upstream side space and from the downstream side space. With a configuration in which the steam is externally discharged through the steam outlet,
As the pressure adjusting means, a low pressure side pressure adjusting means and a high pressure side pressure adjusting means are provided,
The steam adjusted by the low pressure side pressure adjusting means flows into the first upstream space from the cooking pot via the inner lid,
The steam adjusted by the high-pressure side pressure adjusting means flows into the second upstream space from the cooking pot via the inner lid.

When this configuration is adopted, each space forming the upstream side space (first upstream side space, second upstream side space) is separately provided as an inflow space from each pressure adjusting means, thereby separately providing the upstream side space. While exhibiting the action and effect, the inflowing vapor (including the liquid substance) from the low-pressure side pressure adjusting means that works in the normal rice cooking operation is admitted to the first upstream space and the second upstream space for sufficient separation. The action can be achieved. Then, when the pressure becomes high, the high-pressure side pressure adjusting means also operates to achieve advection of steam to the downstream side space via the second upstream side space.

The characteristic configuration of the present invention is
The communicating portion is configured as a distributed communicating hole aggregate having a plurality of communicating holes dispersedly arranged along the wall surface of the vapor circulation space dividing wall.

According to this configuration, since the communication portion is composed of the communication holes dispersedly arranged, it is possible to reduce the hole diameter of the communication holes themselves, and the dispersion communication hole aggregate as a whole effectively works as a filter, and the liquid substance It can be used to separate air bubbles and defoam the bubbles.

The characteristic configuration of the present invention is
In the downstream space, with a hanging wall hanging from the top surface of the downstream space,
At the position opposite to the vapor circulation space dividing wall with respect to the hanging wall, the vapor outlet is provided,
In the container width direction orthogonal to the direction from the steam circulation space dividing wall to the steam outlet beyond the hanging wall, the width of the hanging wall is formed larger than the width of the steam outlet,
It is at a point where a vapor escape passage is formed between the widthwise end of the hanging wall and the inner side wall surface of the downstream space.

According to this configuration, the steam or the like flows into the downstream space from the communication portion provided in the steam distribution space dividing wall, and flows to the steam outlet beyond the hanging wall portion.
Here, in the container width direction, the width of the drooping wall is formed to be larger than the width of the steam outlet, so that the flow of steam is once blocked by the drooping wall and the separation of the liquid substance can be promoted by this drooping wall. it can. Further, in this configuration, if the lower end of the hanging wall is positioned lower than the lower end position of the communication portion in the vertical direction, the separation can be further promoted.

Furthermore, the vapor (including liquid substance) whose smooth flow is obstructed by the hanging wall can flow through the vapor escape passage. Even if the water is accumulated and its surface comes into contact with the bottom surface of the drooping wall, steam flows from the communication part to the steam outlet through the steam escape passage provided on the side of the drooping wall, and the steam flow is greatly hindered. It also avoids causing problems.

As described above, it is possible to separate and store the liquid substance that enters the lid side together with the steam with cooking in a limited space, and to easily perform the maintenance of the space where the liquid substance is stored. I was able to get a cooker that can.

The partial cross section figure which shows the rice cooker of embodiment which concerns on this invention. Exploded view with the lid opened and the inner lid and inner lid cover removed Sectional drawing of the inner lid (storage cover according to the present invention) in a state where the inner lid cover is attached. Exploded perspective view showing how the main components are attached to the inner lid Bottom view of the outer lid with the inner lid removed with the inner lid cover attached Partial cross-sectional view showing the flow of the downstream chamber Bottom view of outer lid The figure which shows the inflow and outflow state of the vapor|steam in a lid body, and the figure which shows the storage and return state of the Onba (b). The bottom view of the outer lid in the state which removed the inner lid in another embodiment. Exploded view around the steam distribution space in another embodiment Longitudinal cross-section of the main part in the container width direction around the steam circulation space (X-X cross section in FIG. 10) Longitudinal cross section of the main part in the front-rear direction of the container around the vapor circulation space (Y-Y cross section in FIG. 10) Longitudinal cross-section of the main part in the front-rear direction of the container around the steam circulation space (Z-Z cross-section in FIG. 10)

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a sectional configuration of a pressure type rice cooker 100 which is an embodiment of a heating cooker according to the present invention.
As shown in the figure, the rice cooker 100 includes a rice cooker main body (cooker main body) 11 that detachably accommodates a bottomed cylindrical inner pan (cooking pan) 10 with an upper opening, and a rice cooker main body 11. And a lid 50 attached so as to be openable and closable. The lid 50 of the rice cooker 100 includes an outer lid 51 and an inner lid 52 configured to be attachable to a side of the outer lid 51 facing the inner pot 10 and sealing an upper end opening of the inner pot 10. A detachable inner lid cover 53 is provided on the side of the inner lid 52 facing the inner pot 10.
Therefore, the lid 50 of the rice cooker 100 shown in this embodiment is configured to have the inner lid cover 53, the inner lid 52, and the outer lid 51 from the inner pot 10 side, and the inner lid cover 53 and the inner lid 52 are separated from each other. The “reservoir space Rs” referred to in the present invention is provided therebetween, and the “steam flow space Rv” referred to in the present invention is provided between the inner lid 52 and the outer lid 51.

FIG. 2 is an exploded view showing the rice cooker 100 with the lid 50 opened and the inner lid 52 and the inner lid cover 53 removed.

On the other hand, FIG. 8(a) shows the flow of the steam v generated from the inner pot 10, and FIG. 8(b) shows the flow of the liquid substance such as bean p which is generated from the inner pot 10.

As shown in FIG. 8A, the steam v generated from the inner pot 10 first flows into a storage space Rs, which is a space formed between the inner lid cover 53 and the inner lid 52, and this space Rs. Through pressure regulating valves 43A and 43B (a type of pressure adjusting means) provided in the inner lid 52 into the steam distribution space Rv which is a space formed between the outer lid 51 and the inner lid 52, The steam exit Ov provided on the top surface of the lid 51 flows out to the outside G of the rice cooker.

On the other hand, as shown in FIG. 8( b ), the liquid material such as p.p. flows into the vapor circulation space Rv through the storage space Rs along with the flow of the vapor v, and passes through the predetermined return path Rw. And is configured to return to the inside of the inner pot 10.

The present invention is mainly characterized by the structure of the steam distribution space Rv, and the steam distribution space Rv is divided into an upstream space Rv1 and a downstream space Rv2 by a dividing wall 90 (a weir B). By so doing, liquid substances such as p and the like and bubbles thereof are kept in the upstream space Rv1 as much as possible, and even if they invade the downstream space Rv2, they are promoted to be separated from the steam v, and the inside is returned via the return path Rw. It is configured so that it can be properly returned to the inside of the pan 10.

The above is a schematic description of the rice cooker 100 according to the present embodiment. Hereinafter, after describing each part in order, a specific configuration of the steam distribution space Rv, which is a feature of the present invention, will be described.

Rice Cooker Main Body As shown in FIG. 1, the rice cooker main body 11 covers a tubular body 12 having upper and lower ends opened, a bottom body 13 closing the lower end opening of the body 12, and an upper end opening of the body 12. And a shoulder body 14 attached to the outer body.
An opening is provided at approximately the center of the shoulder body 14, and below the opening, an inner shell 15 that constitutes a housing portion of the inner pot 10 and a protective frame 16 made of a non-conductive material are provided. There is.
An induction heating coil 17, which is a heating means for inductively heating the bottom of the inner pot 10, is fixed to the outer surface of the protective frame 16.
Further, a lower temperature sensor (not shown), which is a temperature detecting means for detecting the temperature of the inner pot 10, is arranged on the outer periphery of the bottom of the protective frame 16.

Outer lid As shown in FIG. 1, the outer lid 51 includes an exterior body having an upper plate 20 and a lower plate 21, and covers the upper portion of the rice cooker body 11.
An opening operation member 22 for opening the outer lid 51 is provided on the front side of the upper plate 20, and a lock mechanism (not shown) for maintaining the closed state of the rice cooker body 11 is provided therein. It is arranged.
The lower plate 21 is rotatably attached to a hinge connection portion 23 formed on the back of the rice cooker body 11. A radiator plate 24 is arranged below the lower plate 21 located on the inner pan 10 side in the closed state.

Inner lid As shown in FIGS. 1 and 3, an inner lid 52 that closes an upper end opening of the inner pot 10 is detachably configured on the inner surface side of the heat dissipation plate 24 that faces the inner pot 10. The inner lid 52 is made of a metal plate larger than the heat radiating plate 24, and a seal member 28 for sealing the inner peripheral portion of the upper end opening of the inner pot 10 is fixed to the outer peripheral portion through a frame member 29. As shown in FIG. 2, the frame member 29 is provided with engaging portions 31A and 31B that engage with the engaged portions 30A and 30B formed on the lower plate 21 provided on the outer lid 51. The inner lid 52 is not limited to the structure that is detachably arranged on the outer lid 51 as described above, but may be a structure that is provided so as not to be removable.

Inner Lid Cover As shown in FIGS. 2 and 3, the inner lid cover 53 is configured to be detachable on the side of the inner lid 52 that faces the inside of the inner pot 10. The inner lid cover 53 is made of stainless steel and is formed in a disc shape having a diameter substantially the same as that of the heat dissipation plate 24 in a plan view.

A ring-shaped cover ring 69 is provided on the outer peripheral portion of the inner lid cover 53. The cover ring 69 is made of resin, and includes an outer wall portion 70 whose upper end edge abuts the inner lid 52 when the inner lid cover 53 is attached to the inner lid 52. A plurality of ventilation parts 71 communicating with the inside are provided (see FIG. 2 ). The ventilation portion 71 is formed by recessing the upper end portion of the outer wall portion 70 downward, and forms a gap between the ventilation portion 71 and the inner lid 52. Therefore, the ventilation part 71 is configured as a communication part that connects the space inside the inner pot 10 and the storage space Rs described above.

Regarding the attachment/detachment of the inner lid cover 53 to/from the inner lid 52, the positions of substantially corresponding to the engaged portions 30A, 30B and the engaging portions 31A, 31B described above regarding the attachment/detachment of the outer lid 51 to the inner lid 52 are described. In between, engaged members 80A and 80B mounted on the inner lid 52 and engaging portions 81A and 81B provided on the inner lid cover 53 are provided (see FIGS. 2 and 4). The inner lid cover 53 is not limited to the structure that is detachably arranged on the inner lid 52 as described above, and may be a structure that is provided so as not to be detachable.

In the present invention, the space formed between the inner lid 52 and the inner lid cover 53 is referred to as the storage space Rs (see FIG. 3 ), but from the meaning that the storage space Rs can be formed, the inner lid 52 and the inner lid cover 53. The case where the and is integrated is called the “storage case” by the inventors. Then, by removing this storage case from the outer lid 51, as shown in FIG. 5, the vapor circulation space Rv formed between the outer lid 51 and the inner lid 52 can be opened, and the inner lid cover 53 can be opened. By removing from the lid 52, the storage space Rs is opened, and the spaces Rs and Rv in which the liquid substance is stored, such as p.p, can be easily maintained, and the heating cooker is convenient to use.

Storage Space As described above, the space formed between the inner lid cover 53 and the inner lid 52 is a storage space Rs into which the steam v generated inside the inner pot 10 first flows. ..
Here, the inflow of the vapor v and the liquid substance into the space Rs is through the ventilation portion 71 provided in the inner lid cover 53, and the inflow from the storage space Rs into the vapor circulation space Rv is the pressure in the present invention. The pressure adjusting valves 43A and 43B as adjusting means are provided.

Steam Distribution Space As described above, a steam distribution space Rv into which the steam v generated inside the inner pot 10 flows from the storage space Rs is formed between the inner lid 52 and the outer lid 51.
Here, the flow of the steam v into the space Rv is through the communication holes 46A, 46B of the first and second pressure regulating valves 43A, 43B arranged in the inner lid 52, and these communication holes 46A, The steam v having passed through 46B passes through the pressure regulating valves 43A and 43B and flows into the valve housing portion 33 formed below the lower plate 21 provided on the outer lid 51. The valve accommodating portion 33 is also referred to as an upstream space Rv1 which is a part of the steam circulation space Rv described so far, and reaches the steam outlet Ov from the upstream space Rv1 through the downstream space Rv2. Is discharged to.
Since the present invention is characterized by the structure on the downstream side (steam outflow side) of these pressure regulating valves 43A and 43B, the characteristic configuration will be collectively described below.

Pressure Adjusting Means As shown in FIGS. 2 and 3, the inner lid 52 is provided with an exposure hole 42 at a position corresponding to the exposure hole 41 of the heat dissipation plate 24. First and second pressure regulating valves 43A and 43B are provided on the upper surface side of the inner lid 52, and these can increase the pressure inside the inner pot 10 to a set pressure higher than atmospheric pressure.

These pressure regulating valves 43A and 43B are valve mechanisms provided in the steam distribution space Rv.
As shown in FIGS. 3 and 4, the pressure regulating valves 43A and 43B are provided with insertion holes 44A and 44B at positions corresponding to the valve accommodating portion 33 of the inner lid 52, and are disposed above the insertion holes 44A and 44B. The pressure regulating valves 43A and 43B are provided with valve seats 45A and 45B arranged from the lower side which is the inner pot 10 side with respect to the inner lid 52. The valve seats 45A and 45B are provided with communication holes 46A and 46B which are inlets of the steam circulation space Rv. Further, flange portions 47A, 47B are provided at the lower ends of the valve seats 45A, 45B and project outward in the radial direction so as to form an annular shape. The valve seats 45A and 45B are fixed to the inner lid 52 by disposing the covers 48A and 48B on the upper portions of the insertion holes 44A and 44B. Vent holes 49A and 49B communicating with the valve accommodating portion 33 are provided in the covers 48A and 48B.

First Pressure Regulator Valve In the first pressure regulator valve 43A, a spherical member 55 that rotatably closes the communication hole 46A is rotatably disposed inside the cover 48A. The spherical member 55 has such a weight that when the pressure in the inner pot 10 is raised to 1.30 atm, the spherical member 55 rolls and separates from the communication hole 46A by the pressure of the steam v. Further, the spherical member 55 is switched to an open state separated from the communication hole 46A and a closed state in which the spherical member 55 can be rolled on the communication hole 46A by a solenoid, which is not shown, as a driving means.

Second Pressure Regulator Valve In the second pressure regulator valve 43B, a valve body 56 for closing the communication hole 46B inside the cover 48B, and a valve seat 57 for the valve body 56, the valve body 56 at the closed position ( It is provided with an operation receiving member 58 that moves downward and a spring 59 arranged between them. The valve body 56 closes the communication hole 46B with the valve body 56 via the spring 59 when the operation receiving member 58 is moved downward by the driving of a stepping motor, which is a drive unit (not shown). Further, by adjusting the movement amount (biasing force) of the operation receiving member 58, the pressure inside the inner pan 10 can be increased within the range of 1.00 to 1.30 atm.

As described above, the pressure regulating valves 43A and 43B are referred to as "pressure regulating means" in the present invention, but in terms of the relation with the regulated pressure, the first pressure regulating valve 43A corresponds to the "high pressure side". The second pressure regulating valve 43B serves as "low pressure side pressure regulating means". These pressure adjustment ranges may partially overlap as described above.
Further, the above-mentioned second pressure regulating valve 43B has a structure capable of adjusting the vapor pressure to any pressure within a predetermined pressure adjustment range. However, for example, binary or ternary value within a predetermined range The vapor pressure may be adjusted within the range of the pressure set to.

Characteristic Configuration of Steam Distribution Space As is clear from FIG. 1, FIG. 5, FIG. 6, etc., the steam distribution space Rv is located in the steam distribution space Rv on the downstream side of the pressure regulating valves 43A, 43B, and the upstream space Rv1 and the downstream space. A dividing wall 90 that divides into Rv2 is provided. In the present invention, this dividing wall 90 is a “vapor distribution space dividing wall”. The partition wall 90 is provided with a communication portion 91 that connects the upstream space Rv1 and the downstream space Rv2. The partition wall portion located vertically below the communicating portion 91 is the weir portion B in the present invention.

In other words, the steam distribution space Rv on the downstream side of the pressure regulating valves 43A and 43B is divided into an upstream space Rv1 located upstream of the steam distribution direction and a downstream space Rv2 located downstream of the steam distribution direction. The dam portion B is configured to dam at least upstream p flowing in via 43A and 43B on the upstream side in the steam flow direction.

As is clear from FIG. 6, the communication portion 91 is configured as a communication space formed between the top surface S of the vapor circulation space Rv and the upper end portion of the dividing wall 90, and more specifically, the division. It is configured as a distributed communication hole aggregate provided with a plurality of communication holes arranged in parallel along the wall surface of the wall 90, and plays a role as a filter for suppressing the flow of the p to the downstream side.

Now, in the present invention, the inner lid 52 is provided with pressure regulating valves 43A, 43B for adjusting the pressure in the cooking pot, and the steam v discharged from the cooking pot via the pressure regulating valves 43A, 43B is upstream. Although the steam v flows into the side space Rv1, the steam v flows from the upstream space Rv1 to the downstream space Rv2, and the steam v is discharged from the downstream space Rv2 to the outside G through the steam outlet Ov. The gas pressure located on the downstream side of the pressure regulating valves 43A and 43B allows the pressure in the inner pot 10 to be properly adjusted by the pressure regulating valves 43A and 43B.

1 and 3, the flow passage cross-sectional area of the communication holes 46A and 46B as gas flow passages of the pressure regulating valves 43A and 43B is S1, and the flow of the communication portion 91 provided in the dividing wall 90 is described. The cross-sectional area relationship (sum of cross-sectional areas of all communication holes) is S2, the flow path cross-sectional area of the steam outlet Ov is S3, and the cross-sectional area relationship is S1<S2<S3.
In this way, by selecting the cross-sectional area relationship of each flow passage to be larger toward the downstream side in the steam flow direction, the pressure in the space located downstream of the pressure regulating valves 43A and 43B exceeds the pressure regulating valves 43A and 43B and is upstream. Spilling to the side is suppressed.

As shown in FIG. 1, the downstream space Rv2 is provided with a hanging wall 95 that hangs down from the top surface S of the downstream space Rv2, and the steam outlet Ov has the dividing wall with respect to the hanging wall 95. It is provided at a position opposite to 90. The lower end of the hanging wall 95 hangs downward from the lower ends of the openings of the plurality of communication holes forming the communication portion 91.
Therefore, the liquid substance mainly composed of the amber p, which flows into the downstream space Rv2 through the communication portion 91 of the dividing wall 90, hits the hanging wall 95 and drops to the bottom portion of the downstream space Rv2 to directly flow to the vapor outlet Ov. There is no flow or spillage.

Further, as is clear from FIG. 7, in the container width direction W orthogonal to the direction from the dividing wall 90 beyond the hanging wall 95 toward the steam outlet Ov, the width W1 of the dividing wall 90 is equal to the communicating portion. It is formed to be larger than the dispersion width W3 of the plurality of communication holes forming 91 and the width W2 of the steam outlet Ov, and the steam is provided between the width direction end of the hanging wall 95 and the side inner wall surface s of the downstream space Rv2. A bypass F is formed.
As a result, the steam v including the pour p that passes through the communication portion 91 surely hits the hanging wall 95, and only the gas component can avoid the wall 95 in the width direction of the hanging wall 95 and reach the steam outlet Ov. .. Further, even if the p is collected at the bottom of the downstream space Rv2, the flow of the steam v toward the steam outlet Ov can be ensured by the steam escape passage F provided ahead of the widthwise end of the hanging wall 95.

As described above, in the lid body 50 of the rice cooker 100 according to the present invention, the liquid substance such as the amber p flowing through the lid body 50 with the steam v is finally the downstream space Rv2. The liquid substance such as p is directly stored in the downstream space without passing through such a desired route (the storage space Rs, the pressure regulating valves 43A and 43B, the upstream space Rv1, and the communication portion 91). In order to reduce entry into Rv2, the bottom of the downstream space Rv2 is sealed with an elastic member such as packing.

This structure is schematically shown in FIG. At the bottom of the downstream space Rv2 in the same figure, there is shown a seal portion 97 including a seal packing 98 and a heat shield plate 99 which also serves as a restraint.
However, the liquid substance that has entered and stored in the downstream space Rv2 is returned to the inside of the inner pot 10 via the return path Rw by the cutout portion 96 provided in the seal portion 97 (see FIG. 4).

This return path Rw communicates with the gap formed between the heat dissipation plate 24 and the upper surface of the inner lid 52, which circulates on the upper surface of the inner lid 52, and is connected to the lower portion of the inner lid 52 at different phase portions. Therefore, the structure is such that it is difficult for the steam v and the like to directly flow from the inner pot 10 directly into the downstream space Rv2 via the return path Rw.

Further, as can be seen from FIG. 4, the cutout portion 96 is arranged at a position far from the communication portion 91 provided on the dividing wall 90 in order to form a reverse flow of the steam v and the p. In the space Rv2, the communication portion 91 and the cutout portion 96 are arranged at the facing position. Furthermore, by making the flow passage cross-sectional area of the cutout portion 96 smaller than the total cross-sectional area of the communication portion 91, it is possible to prevent the vapor v from rising and entering through the return passage Rw.

Hereinafter, the function of the rice cooker 100 will be briefly described.
In this rice cooker 100, a control board (not shown) is arranged in the rice cooker main body 11, and a microcomputer as a control means is mounted on this control board. Then, the microcomputer performs heating (energization) control by the induction heating coil 17 according to the operation of the operation unit C formed on the front surface of the rice cooker body 11 in accordance with a prestored program, and performs preheating and temperature increase (medium). It is possible to perform a rice cooking (cooking) process through each process such as pappa), boil maintenance, and purging, and also a heat retention process that keeps the cooked rice at a predetermined temperature.

During the rice cooking process, the temperature of the inner pot 10 is detected by the temperature sensor, and the heating amount by the induction heating coil 17 is controlled based on the detected value.

Further, the steam v (including the one p) which is generated by heating the inner pot 10 flows into the storage space Rs from the ventilation part 71.

After passing through the storage space Rs, the steam v that has passed through the communication holes 46A and 46B passes through the first and second pressure regulating valves 43A and 43B in a regulated state, and the upstream side space Rv1 and the downstream side space After passing through Rv2, the steam v flows out to the outside G through the steam outlet Ov, and, for example, p and the like pass through the return path Rw that passes through the cutout portion 96 and the storage space Rs from the upper surface of the inner lid 52. , Return to the inner pot 10.

In this process, the dew condensation water due to the steam v in the purging process and the steam v during the heat retention adheres to the storage space Rs. As a result, this dew condensation water is dispersed from a large number of ventilation holes 67 formed in the inner lid cover 53 and applied onto the cooked rice. As a result, an appropriate amount of water can be added to p and the like, so that the moisture of the cooked rice can be secured.

[Another embodiment]
The heating cooker of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

(1) In the above embodiment, the partition wall 90 (steam distribution space partition wall) is provided and the communication hole 91 is formed in the partition wall 90. This communication hole 91 is provided on the side surface of the partition wall 90 provided in the up-down direction, and the forming direction of the hole is the container front-rear direction FB which is the left-right direction in FIG. 1, and is also found from FIG. 7. Thus, it is also the direction in which the upstream space Rv1 and the downstream space Rv2 are arranged. The upstream space Rv1 is substantially a single chamber. As a result, there is room for improvement in terms of the purpose of effectively separating p and the like by making the advancing direction of the steam v complicated. A form for the purpose of such improvement is shown in FIGS. 9 to 13.
Hereinafter, the description will proceed while pointing out the characteristic configuration of the another embodiment.

In the description of this other embodiment, the three members 501, 502, and 503 used to form the vapor circulation space Rv on the inner lid 52 will be first described. As shown in FIGS. 10 to 13, as these three members, a lower space forming member 501, an intermediate space forming member 502, and an upper space forming member 503 are provided in such a manner that they are sequentially stacked on the inner lid 52. A steam flow space Rv from each pressure regulating valve 43A, 43B provided in the inner lid 52 to the steam outlet Ov is formed between the outer lid 51 and the inner lid 52.

Hereinafter, the three features of this other embodiment will be described in order.
(1)-1. In a mode in which the steam v is advected from the upstream space Rv1 to the downstream space Rv2, the steam v once escapes to the upper side of the upstream space Rv1, and then traverses to flow into the downstream space Rv2. As shown in FIG. 11 and FIG. 13, in this other embodiment, a communication portion 93 that opens in the ceiling surface S of the upstream space Rv1 and traverses and connects to the downstream space Rv2 from the outlet of the opening 92 is provided. It is provided.
The openings 92 are a plurality of holes that open vertically in the top surface S, and the flow passage cross-sectional area of the communication portion 93 is relatively narrow. Further, the top surface 93s of the communicating portion 93 is positioned immediately above the opening 92 that opens in the up-down direction so that the vapor v is allowed to traverse, and the liquid substance such as a p is retained in the communicating portion 93. There is. As a result, in this another embodiment, the weir B described so far is formed by the opening 92 and the communication portion 93. In the illustrated example, only the opening 92 is composed of a plurality of holes, but the communicating portion 93 may be composed of a plurality of holes.

(1)-2. A partition wall 900 (which serves as an upstream space partition wall) that partitions the upstream space Rv1 is provided, and this space Rv1 is a two-chamber structure including a first upstream space Rv11 and a second upstream space RV12. As shown in FIGS. 9 and 11, the upstream space Rv1 is a first upstream space Rv11 on the steam inflow side, and the second upstream is where the steam v flows in from the first upstream space Rv11 and the steam v flows out. A dividing wall 900 that divides into the side space Rv12 is provided, and a circulation unit 901 that connects and connects the first upstream space Rv11 and the second upstream space Rv12 between the lower end of the dividing wall 900 and the inner lid 52. Is provided.
Here, although the terminology is changed between the communication section 93 and the flow section 901, the cross section of the flow path of these sections is greatly narrowed in the steam flow space Rv to separate the liquid substance (for example, p. It is common in that it is a confined place where the steam v can be distributed.

In this another embodiment, the upstream space Rv1 and the downstream space Rv2 are arranged in the container front-rear direction FB, and the first upstream space Rv11 and the second upstream space Rv12 are arranged in the container front-rear direction FB. The width direction W (an example of a crossing direction) is orthogonal (an example of a crossing).

Further, regarding the pressure adjusting means 43A and 43B, the steam v adjusted by the second pressure adjusting valve 43B (low pressure side pressure adjusting means) is directly supplied from the cooking pot 10 to the first upstream space Rv11 via the inner lid 52. A structure is adopted in which the steam v, which has flown in and is adjusted by the first pressure regulating valve 43A (high pressure side pressure adjusting means), directly flows into the second upstream space Rv12 from the cooking pot 10 via the inner lid 52. ..

Therefore, in this other embodiment, the steam v containing the pomegranate p generated in the cooking pot 10 passes through the second pressure regulating valve 43B in the low pressure side state where the second pressure regulating valve 43B properly operates. Flow into the first upstream space Rv11, and then into the second upstream space Rv12 via the circulation portion 901 provided in the lower portion of the dividing wall 900 (see FIG. 11). The moving direction of the vapor v here is the width direction W of the container. Now, the steam v rising in the second upstream space Rv12 escapes to the upper side through the opening 92 provided in the space top surface S (see FIG. 13), and then the advection direction is directed sideways to the downstream space. It flows into Rv2. In this form, the flow of the steam v is subjected to a plurality of bending operations, so that the liquid substance such as p can be sufficiently separated. It also has a defoaming function.

On the other hand, in the state of the high pressure side where the first pressure regulating valve 43A operates (opens), the steam v of the second upstream side space Rv12 also directly flows in from this pressure regulating valve 43A, but the second upstream space Rv2 and the downstream side space Since the bending operation is performed through the opening 92 and the communication portion 93 provided between the liquid substance such as Rv2, the liquid substance such as p can be favorably separated.

Further, as easily understood by comparing FIG. 9 and FIG. 12 showing another embodiment with FIG. 5, it is not always necessary to provide the hanging wall 95 in the downstream space Rv2 in this other embodiment. This is because the flow of the steam v has undergone a sufficient bending operation at the stage of inflow into the downstream space Rv2, and the separation of, for example, p has been completed.

(2) For example, in the embodiment described above, the ventilation portion 71 having a predetermined opening area is provided on the outer wall portion 70 of the inner lid cover 53, but the ventilation hole 67 may be provided on the bottom surface of the inner lid cover. Further, the ventilation portion 71 is not limited to the configuration provided at the upper end of the outer wall portion 70, and may be configured by a hole that penetrates.

(3) Further, in the above-described embodiment, the pair of pressure regulating valves 43A and 43B are mounted, but it is also possible to provide only one pressure regulating valve. Of course, the configuration of providing the inner lid cover 53 of the present invention is also effective as a non-pressure rice cooker without the pressure regulating valves 43A and 43B.

(4) Furthermore, although the rice cooker has been described as an example in the above-described embodiment, the same can be applied as long as it is a heating cooker that heats and cooks a predetermined cooking product, and the same action and effect are obtained. Obtainable.

INDUSTRIAL APPLICABILITY The present invention can separate and store liquid substances and the like that enter the lid side together with steam with cooking in a limited space, and can easily perform maintenance of the space where the liquid substances and the like are stored. It can be suitably used for a heat cooker that can be used.

10 Inner pot (cooking pot)
11 Rice cooker body (cooker body)
17 Induction heating coil (heating means)
24 Radiator 33 Valve accommodation chamber (upstream space)
43A First pressure adjusting valve (pressure adjusting means/high pressure side pressure adjusting means)
43B Second pressure regulating valve (pressure adjusting means/low pressure side pressure adjusting means)
46A, 46B Communication hole (gas flow passage)
50 lid 51 outer lid 52 inner lid 53 inner lid cover 71 ventilation part 90 partition wall (steam distribution space partition wall)
91 Communication part (communication space, communication hole, communication hole assembly)
92 Opening 93 Communication part 93s Top surface 95 Hanging wall 96 Notch part 97 Seal part 98 Seal packing 99 Heat shield plate 900 Dividing wall (upstream space dividing wall)
901 Flow section B Weir section F Steam escape channel FB Container front-back direction G External Rs Storage space Rv Steam distribution space Rv1 Upstream space (valve chamber 33)
RV11 1st upstream side space Rv12 2nd upstream side space Rv2 Downstream side space Ov Steam outlet S Top surface W Container width direction v Steam p One's bed (liquid substance)

Claims (6)

A cooker body that houses a cooking pot with an upper opening,
Heating means provided in the cooker main body for heating the cooking pot in the housed state,
A lid provided to the cooker body so as to be openable and closable,
The lid includes an outer lid and an inner lid that is detachably provided on a side of the outer lid that faces the cooking pot and that closes an upper end opening of the cooking pot when the lid is closed. ,
A heating cooker in which steam generated from the cooking pot flows into the lid side and flows out of the lid from the steam outlet through the steam circulation space,
The steam circulation space is formed between the outer lid and the inner lid,
In the steam distribution direction in the steam distribution space, a weir portion for blocking the liquid substance flowing into the steam distribution space on the upstream side in the steam distribution direction is provided,
The steam distribution space is at least divided into an upstream space located upstream of the dam portion in the steam distribution direction and a downstream space located downstream of the dam distribution direction ,
The upstream space and the downstream space are arranged side by side,
An opening is provided on the top surface of the upstream space, and a communication part is provided for communicating with the downstream space from an outlet of the opening,
The opening and the communication portion are the weir portion,
An upstream space dividing wall that divides the upstream space into a first upstream space on the steam inflow side and a second upstream space into which steam flows from the first upstream space and outflows steam;
A heating cooker including a circulation unit that connects and connects the first upstream space and the second upstream space at a lower portion of the upstream space . The inner lid is provided with a pressure adjusting means for adjusting the pressure in the cooking pot, and the steam discharged from the cooking pot through the pressure adjusting means flows into the upstream side space and from the downstream side space. With a configuration in which the steam is externally discharged through the steam outlet,
The direction from the arrangement position of the pressure adjusting means to the steam outlet is the container front-rear direction, and the upstream space and the downstream space are arranged in the container front-rear direction,
Wherein the first upstream-side space and the second upstream space heating cooker of claim 1, wherein arranged in the direction crossing to the container longitudinal direction. The inner lid is provided with a pressure adjusting means for adjusting the pressure in the cooking pot, and the steam discharged from the cooking pot through the pressure adjusting means flows into the upstream side space and from the downstream side space. With a configuration in which the steam is externally discharged through the steam outlet,
As the pressure adjusting means, a low pressure side pressure adjusting means and a high pressure side pressure adjusting means are provided,
The steam adjusted by the low pressure side pressure adjusting means flows into the first upstream space from the cooking pot via the inner lid,
The heating cooker according to claim 1 or 2, wherein the steam adjusted by the high-pressure side pressure adjusting means flows into the second upstream space from the cooking pot via the inner lid. A cooker body that houses a cooking pot with an upper opening,
Heating means provided in the cooker main body for heating the cooking pot in the housed state,
A lid provided to the cooker body so as to be openable and closable,
The lid includes an outer lid and an inner lid that is detachably provided on a side of the outer lid that faces the cooking pot and that closes an upper end opening of the cooking pot when the lid is closed. ,
A heating cooker in which steam generated from the cooking pot flows into the lid side and flows out of the lid from the steam outlet through the steam circulation space,
The steam circulation space is formed between the outer lid and the inner lid,
In the steam distribution direction in the steam distribution space, a weir portion for blocking the liquid substance flowing into the steam distribution space on the upstream side in the steam distribution direction is provided,
The steam distribution space is at least divided into an upstream space located upstream of the dam portion in the steam distribution direction and a downstream space located downstream of the dam distribution direction ,
A steam distribution space dividing wall that divides the steam distribution space into the upstream space and the downstream space,
The vapor flow space dividing wall is provided with a communication portion that connects the upstream space and the downstream space.
The steam distribution space dividing wall portion located below the communication portion is the weir portion,
The inner lid is provided with pressure adjusting means for adjusting the pressure in the cooking pot, and the steam discharged from the cooking pot through the pressure adjusting means flows into the upstream space,
With a configuration for externally discharging the steam from the downstream space via the steam outlet,
The flow passage cross-sectional area of the gas flow passage of the pressure adjusting means is S1,
The flow passage cross-sectional area of the communication portion is S2,
The flow passage cross-sectional area of the steam outlet is S3,
A heating cooker in which the cross-sectional area of each flow path has a relationship of S1<S2<S3 . The heating cooker according to claim 4 , wherein the communication section is configured as a distributed communication hole assembly including a plurality of communication holes dispersedly arranged along a wall surface of the vapor circulation space dividing wall. A cooker body that houses a cooking pot with an upper opening,
Heating means provided in the cooker main body for heating the cooking pot in the housed state,
A lid provided to the cooker body so as to be openable and closable,
The lid includes an outer lid and an inner lid that is detachably provided on a side of the outer lid that faces the cooking pot and that closes an upper end opening of the cooking pot when the lid is closed. ,
A heating cooker in which steam generated from the cooking pot flows into the lid side and flows out of the lid from the steam outlet through the steam circulation space,
The steam circulation space is formed between the outer lid and the inner lid,
In the steam distribution direction in the steam distribution space, a weir portion for blocking the liquid substance flowing into the steam distribution space on the upstream side in the steam distribution direction is provided,
The steam distribution space is at least divided into an upstream space located upstream of the dam portion in the steam distribution direction and a downstream space located downstream of the dam distribution direction ,
A steam distribution space dividing wall that divides the steam distribution space into the upstream space and the downstream space,
The vapor flow space dividing wall is provided with a communication portion that connects the upstream space and the downstream space.
The steam distribution space dividing wall portion located below the communication portion is the weir portion,
In the downstream space, with a hanging wall hanging from the top surface of the downstream space,
At the position opposite to the vapor circulation space dividing wall with respect to the hanging wall, the vapor outlet is provided,
In the container width direction orthogonal to the direction from the steam distribution space dividing wall to the steam outlet beyond the hanging wall, the width of the hanging wall is formed larger than the width of the steam outlet,
A heating cooker in which a steam escape passage is formed between a widthwise end of the hanging wall and a side inner wall surface of the downstream space .

Images