JP7116598B2 - microwave cooker - Google Patents

Description

The present invention relates to a microwave oven cooker.

Conventionally, there is known a cooking container capable of cooking porridge, rice, etc. in a microwave oven (see, for example, Patent Document 1). In the cooking container disclosed in Patent Document 1, the opening of the bowl-shaped main body container is closed by the bottom wall of a similarly bowl-shaped foam receiving container. When the main container containing rice and water is heated and the water boils, small-diameter bubbles are ejected into the bubble-receiving container through small-diameter holes provided in the bottom wall of the bubble-receiving container.

JP 2008-054943 A

The cooking container described in Patent Document 1 has a side wall formed so as to expand upward from a circular bottom wall. The distance from the small diameter hole formed in the bottom wall to the upper end of the side wall is the same at any position on the side wall. Therefore, when the bubbles ejected through the small-diameter hole reach the upper end of the side wall at any position on the side wall, the bubbles are blown out of the bubble receiving container at that point.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is capable of suppressing bubbles ejected from a vapor discharge portion of a lid portion that closes a storage container from blowing over a peripheral wall surface surrounding the vapor discharge portion. The object is to provide a cooker for microwave ovens.

According to the present invention, there are provided a storage container that stores food to be heated and has an open top while being installed on an installation surface; a lid portion that closes to form a heating space for heating the food material, the lid portion being arranged at one end in the longitudinal direction of the lid portion and allowing the heating space and an external space to communicate with each other. a vapor discharge portion having a plurality of slits; a peripheral wall surface surrounding the vapor discharge portion and having an upper end positioned at a first height relative to the installation surface; and a sloped surface that slopes downward toward the steam release portion, wherein a second height of the sloped surface at the other longitudinal end of the lid portion is lower than the first height. is solved by a microwave cooker.

According to the microwave cooker having the above configuration, when the water and the food material (for example, rice) are heated in the heating space and the water boils, the steam release portion is arranged at one end in the longitudinal direction of the lid portion. Bubbles containing the ingredients of the ingredients are ejected from the A second height at the other end in the longitudinal direction of the lid portion of the inclined surface that descends toward the steam release portion is lower than the first height of the upper end portion of the peripheral wall surrounding the steam release portion. Therefore, the bubbles ejected from the vapor release portion reach the inclined surface before reaching the upper end portion of the peripheral wall surface, rise from one end side of the lid portion toward the other end side, are cooled, and shrink or disappear. The bubbles that have reached the inclined surface from the steam discharge part are blown over only when they reach from the lowest position to the highest position on the inclined surface and exceed the upper end of the peripheral wall surface above that position. Therefore, according to the microwave cooker having the above configuration, it is possible to suppress the bubbles ejected from the steam release portion of the lid closing the storage container from overflowing from the peripheral wall surface surrounding the steam release portion.

In the microwave cooker according to the present invention, preferably, the plurality of slits are formed so as to extend along the longitudinal direction of the lid portion.
According to the microwave cooker configured as described above, the direction in which the plurality of slits extends and the direction in which the inclined surface is inclined coincide with each other in the longitudinal direction of the lid. Therefore, the bubbles ejected from the vapor release portion are guided not in the short direction of the lid directly to the peripheral wall surface but in the longitudinal direction toward the inclined surface. Therefore, it is possible to prevent the bubbles ejected from the steam release portion from being directly guided to the peripheral wall surface and blown over from the upper end portion of the peripheral wall surface.

In the microwave cooker according to the present invention, preferably, the lid connects the inclined surface at one end in the longitudinal direction of the lid and the end of the steam release portion on the inclined surface side, and It is characterized by having a connecting wall surface having a larger inclination angle with respect to the installation surface than the inclined surface.
According to the microwave cooker configured as described above, the bubbles ejected from the steam emitting portion are guided from the steam emitting portion to the heating space unless they exceed the connection wall surface having a larger inclination angle with respect to the installation surface than the inclined surface. The bubbles ejected from the steam discharge part reach the inclined surface before reaching the upper end of the peripheral wall surface after passing over the connecting wall surface, and are cooled and contracted while rising from one end side to the other end side of the lid part. Or disappear. Therefore, it is possible to prevent the bubbles ejected from the steam release portion from blowing over the upper end portion of the peripheral wall surface.

In the microwave cooker according to the present invention, preferably, an inclination angle of the inclined surface with respect to the installation surface is 1° or more and 10° or less.
According to the microwave cooker having the configuration described above, by setting the inclination angle of the inclined surface to 1° or more, it is possible to appropriately suppress the bubbles that have reached the inclined surface from reaching the highest position of the inclined surface. can. Further, by setting the inclination angle of the inclined surface to 10° or less, the height of the lid can be lowered, and the size of the microwave cooker can be reduced.

In the microwave cooker according to the present invention, preferably, the ratio of the opening area of the plurality of slits to the region area when the steam releasing portion is viewed from above is 40% or more and 60% or less. and
According to the microwave cooker having the above configuration, by setting the ratio of the opening area to the region area to 40% or more and 60% or less, the opening area of the plurality of slits is appropriately set to the region area when the steam release part is viewed in plan. size can be secured. Therefore, it is possible to appropriately cool the heating space while keeping the internal pressure of the heating space appropriately so that excessive bubbles are not emitted from the steam emitting portion and the heating space is not blown over.

Advantageous Effects of Invention According to the present invention, it is possible to provide a microwave oven cooker capable of suppressing bubbles ejected from a steam release portion of a lid closing a storage container from overflowing from a peripheral wall surface surrounding the steam release portion. .

1 is a perspective view showing a microwave cooker according to an embodiment of the present invention; FIG. FIG. 2 is a vertical cross-sectional view of the microwave cooker shown in FIG. 1; FIG. 2 is a side view of the storage container shown in FIG. 1; FIG. 4 is a cross-sectional view of the storage container shown in FIG. 3 taken along the line I-I. FIG. 5 is a cross-sectional view of the storage container shown in FIG. 4 taken along line II-II. FIG. 2 is a longitudinal sectional view of the lid shown in FIG. 1; FIG. 2 is a plan view of the lid shown in FIG. 1; Fig. 2 is a vertical cross-sectional view showing a state in which foodstuffs are heated by a microwave cooker;

Preferred embodiments of the invention are described in detail below with reference to the drawings. Since the embodiments described below are preferred specific examples of the present invention, various technically preferable limitations are applied. Unless otherwise stated, the invention is not limited to these modes. Further, in each drawing, the same constituent elements are denoted by the same reference numerals, and detailed description thereof will be omitted as appropriate.

Hereinafter, a microwave cooker 300 according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a microwave cooker 300 according to this embodiment. FIG. 2 is a vertical cross-sectional view of microwave cooker 300 shown in FIG.

As shown in FIGS. 1 and 2, the microwave cooker 300 of this embodiment includes a storage container 100 for storing foodstuffs to be heated by a microwave oven, and a lid portion 200 detachably attached to the storage container 100. , provided. Here, the food is to be heated with water, and is, for example, cereals such as rice. The microwave cooker 300 of this embodiment is used, for example, to cook rice porridge by heating rice with water.

As shown in FIG. 2, the storage container 100 of the present embodiment is opened at the top when installed on the installation surface IS. The lid portion 200 of the present embodiment forms a heating space HS for closing the top of the storage container 100 and heating food. The lid portion 200 has a steam release portion 270 arranged at one end (the left end in FIG. 2) in the longitudinal direction of the lid portion 200 and communicating the heating space HS and the external space OS. The lid portion 200 has an inclined surface 260 that slopes downward from the other longitudinal end (the right end in FIG. 2) toward the vapor release portion 270 .

As shown in FIG. 2, the upper end portion 201 of the wall surrounding the vapor discharge portion 270 is arranged at the first height H1. On the other hand, the inclined surface 260 at the other longitudinal end of the lid portion 200 is arranged at the second height H2 with respect to the installation surface IS. The second height H2 is lower than the first height H1. The inclined surface 260 has the lowest height at the end on the vapor discharge portion 270 side, and has a third height H3 with respect to the installation surface IS. The steam release portion 270 is arranged at a fourth height with respect to the installation surface IS. The third height H3 is lower than the second height H2, and the fourth height H4 is lower than the third height H3.

Next, the storage container 100 included in the microwave cooker 300 will be described with reference to the drawings. 3 is a side view of the container 100 shown in FIG. 1. FIG. FIG. 4 is a cross-sectional view of the storage container 100 shown in FIG. 3 taken along line I-I. FIG. 5 is a cross-sectional view of the storage container 100 shown in FIG. 4 taken along line II-II.

As shown in FIGS. 3 to 5, the storage container 100 includes a container body 120, a pair of handles 130 provided on the upper surface of both ends of the container body 120, and legs provided on the lower end of the container body 120. 140 and.
The container body 120 has a shape that is long in one direction shown in FIG. 3 and short in the other direction (direction perpendicular to the direction in FIG. 3) shown in FIG. The length of the container body 120 in the longitudinal direction is L1, and the length of the container body 120 in the lateral direction is L2, which is shorter than L1.

As shown in FIG. 3, the container main body 120 has, at one end 121 and the other end 122 in the longitudinal direction, semi-hemispherical inner peripheral surfaces obtained by further dividing a hemisphere into halves. The container main body 120 is integrally formed of a resin material in such a shape that a main body portion 123 is sandwiched between one end portion 121 and the other end portion 122 .
As shown in FIG. 4, the container main body 120 has a curved shape that is concave downward in the vertical direction.

As shown in FIGS. 4 and 5, the inner peripheral surface of the container body 120 has grooves 110 formed in a part thereof, and grooves 110 are not formed in other parts thereof. The user can grind the food by placing the food on the groove 110 and pressing the food against the groove 110 with a cooking spoon (not shown). Further, the user can easily scoop up the ground food material with the cooking spoon by moving the food material ground in the groove part 110 to a region other than the groove part 110 with the cooking spoon. A measuring line 115 is formed in a region of the inner peripheral surface of the container body 120 where the groove portion 110 is not formed. The measurement line 115 is a line that serves as a guideline for the amount of liquid such as water stored in the storage container 100 .

As shown in FIGS. 4 and 5, a stepped portion 202 on the lower end side of the lid portion 200 is accommodated on the inner peripheral surface of the upper end side of the storage container 100 over the entire circumference of the upper end side of the storage container 100 . A stepped portion 101 of is formed. The lid portion 200 is attached to the storage container 100 by housing the stepped portion 202 on the lower end side of the lid portion 200 in the stepped portion 101 . When the storage container 100 is attached to the lid portion 200, the portion where the stepped portion 101 and the stepped portion 202 contact blocks communication between the heating space HS and the external space OS over the entire circumference of the upper end side of the storage container 100. state.

Next, lid portion 200 included in microwave cooker 300 will be described with reference to the drawings. FIG. 6 is a vertical cross-sectional view of the lid portion 200 shown in FIG. 7 is a plan view of the lid portion 200 shown in FIG. 1. FIG. As shown in FIGS. 6 and 7, the lid portion 200 has a longitudinal direction (horizontal direction in FIGS. 6 and 7) and a lateral direction (vertical direction in FIGS. 6 and 7), and is open at the bottom. is a struct of type The lid portion 200 is integrally formed of a resin material.

The lid portion 200 includes a first wall surface 210, a second wall surface 220, a third wall surface 230, and a fourth wall surface 240 extending in the vertical direction when attached to the storage container 100, a connection wall surface 250, an inclined surface 260, and a steam release portion 270 .

As shown in FIG. 7, the first wall surface 210 and the second wall surface 220 are wall surfaces extending parallel to each other along the longitudinal direction of the lid portion 200 (horizontal direction in FIG. 7). The third wall surface 230 is a wall surface that connects the first wall surface 210 and the second wall surface 220 and is formed in a semicircular shape when viewed from above. The fourth wall surface 240 is a wall surface that connects the first wall surface 210 and the second wall surface 220 and is formed in a semicircular shape when viewed from above. The first wall surface 210 , the second wall surface 220 , the third wall surface 230 , and the fourth wall surface 240 form a peripheral wall surface arranged so as to surround the steam discharge portion 270 .

The connection wall surface 250 is a wall surface that extends in the lateral direction of the lid portion 200 and connects the inclined surface 260 at one end in the longitudinal direction of the lid portion 200 and the end portion of the vapor release portion 270 on the inclined surface 260 side.
The inclined surface 260 is inclined in a direction downward from the other longitudinal end (the right end in FIG. 7) of the lid portion 200 toward the vapor release portion 270 .
As shown in FIG. 6, the inclination angle θ2 of the connecting wall surface 250 with respect to the installation surface IS is greater than the inclination angle θ1 of the inclined surface 260 with respect to the installation surface IS. Here, it is desirable that the inclination angle θ1 is, for example, 1° or more and 10° or less. Moreover, it is desirable that the inclination angle θ2 is, for example, 45° or more and 80° or less.

As shown in FIG. 6, when the length of the lid portion 200 in the longitudinal direction is L3 and the length of the inclined surface 260 in the longitudinal direction is L4, the ratio of L4/L3 should be 50% or more and 80% or less. desirable. By sufficiently securing L4 with respect to L3, the foam containing ingredients of the foodstuff can be sufficiently cooled on the inclined surface 260 .

As shown in FIG. 7 , a plurality of slits 271 are formed in the vapor release portion 270 so as to extend along the longitudinal direction of the lid portion 200 . Here, the area of the entire area when the vapor release portion 270 surrounded by the third wall surface 230 and the connection wall surface 250 is viewed from above is defined as a region area S1. Further, the total area of the openings formed by the plurality of slits 271 when the vapor release portion 270 is viewed from above is defined as an opening area S2. In this embodiment, it is desirable that S2/S1 is 40% or more and 60% or less.

As shown in FIG. 6, a stepped portion 202 for storing in the upper stepped portion 101 of the storage container 100 is provided on the outer peripheral surface of the lower end side of the lid portion 200 over the entire circumference of the lower end side of the lid portion 200 . is formed. The lid portion 200 is attached to the storage container 100 by housing the stepped portion 202 on the lower end side of the lid portion 200 in the stepped portion 101 of the storage container 100 . When the lid portion 200 is attached to the storage container 100, the portion where the stepped portion 202 and the stepped portion 101 contact cuts off the communication between the heating space HS and the external space OS over the entire circumference of the lower end side of the lid portion 200. state.

Next, the operation of the inclined surface 260 when food is heated by the microwave cooker 300 will be described with reference to the drawings. FIG. 8 is a vertical cross-sectional view showing a state in which food is heated by microwave cooker 300. As shown in FIG. FIG. 8 shows a state in which water and rice are stored in the storage container 100 of the microwave cooker 300 and heated with a microwave oven (not shown) with the lid 200 attached to the storage container 100 .

As shown in FIG. 8, when the microwave cooker 300 is heated in the microwave, the water W boils and the rice grains R convect in the direction indicated by the arrow A. As shown in FIG. Above the water W, a layer containing small-diameter bubbles B1 formed by the components of the rice grains R and water is formed. A layer containing large-diameter bubbles B2 is formed above the small-diameter bubbles B1. The layer containing bubbles B2 expands its area upward as the heating time increases, and reaches the steam release section 270 . The bubbles B2 reaching the vapor discharge portion 270 are reduced in diameter when passing through the slit 271, and as the bubbles B2 are formed inside the heating space HS, the area expands further upward from the vapor discharge portion 270. do.

Bubbles B<b>2 whose area is expanded above steam release portion 270 reach the end of inclined surface 260 on the side of steam release portion 270 from connection wall surface 250 . The bubbles B2 reaching the inclined surface 260 expand from one end of the inclined surface 260 (the end on the side of the steam release portion 270) to the other end (the end on the side of the fourth wall surface 240). Since the inclined surface 260 is exposed to the external space OS, the bubble B2 is cooled and shrinks or disappears from one end of the inclined surface 260 to the other end. Also, since the upper end 201 of the wall surface is positioned higher than the other end of the inclined surface 260 , the bubbles B2 that do not reach the upper end 201 of the wall surface are not blown out of the microwave cooker 300 .

The operation and effects of the microwave cooker 300 of the present embodiment described above will be described.
According to the microwave cooker 300 according to the present embodiment, when the water and the food material (for example, rice) are heated in the heating space HS and the water boils, the Bubbles B2 containing the components of the food material are ejected from the steam release portion 270. As shown in FIG. The second height H2 of the inclined surface 260 that descends toward the vapor release portion 270 at the other longitudinal end of the lid portion 200 is higher than the first height H1 of the upper end portion 201 of the peripheral wall surrounding the vapor release portion 270. low.

Therefore, the bubbles B2 ejected from the steam release portion 270 reach the inclined surface 260 before reaching the upper end portion 201 of the peripheral wall surface, and are cooled while rising from one end side to the other end side of the lid portion 200. shrink or disappear. The bubbles that have reached the inclined surface from the vapor release portion 270 are blown over when they reach from the lowest position to the highest position on the inclined surface 260 and exceed the upper end portion 201 of the peripheral wall surface above that position. Limited. Therefore, according to the microwave oven cooker 300 according to the present embodiment, the bubbles ejected from the steam release portion 270 of the lid portion 200 that closes the storage container 100 are prevented from overflowing from the peripheral wall surface surrounding the steam release portion 270. can do.

Further, according to the microwave cooker 300 of the present embodiment, the direction in which the plurality of slits 271 extend and the direction in which the inclined surface 260 is inclined match in the longitudinal direction of the lid portion 200 . Therefore, the bubbles ejected from the vapor release portion 270 are guided not in the short direction of the lid portion 200 directly to the peripheral wall surface but in the longitudinal direction toward the inclined surface 260 . Therefore, it is possible to prevent the bubbles ejected from the steam discharge portion 270 from being directly guided to the peripheral wall surface and blown over from the upper end portion 201 of the peripheral wall surface.

Further, according to the microwave oven cooker 300 of the present embodiment, the bubbles B2 ejected from the steam releasing portion 270 do not exceed the connecting wall surface 250 having a larger inclination angle with respect to the installation surface IS than the inclined surface 260, so that steam is released. It is led from the part 270 to the heating space HS. After passing through the connection wall surface 250, the bubbles ejected from the steam release portion 270 reach the inclined surface 260 before reaching the upper end portion 201 of the peripheral wall surface, and rise from one end side to the other end side of the lid portion 200. It cools down and shrinks or disappears. Therefore, it is possible to prevent the bubbles ejected from the steam release portion 270 from blowing over the upper end portion 201 of the peripheral wall surface.

Further, according to the microwave oven cooker 300 of the present embodiment, by setting the inclination angle θ1 of the inclined surface 260 to 1° or more, the bubbles reaching the inclined surface 260 reach the highest position of the inclined surface 260. can be appropriately suppressed. Moreover, by setting the inclination angle θ1 of the inclined surface 260 to 10° or less, the height of the lid portion 200 can be lowered, and the size of the microwave oven cooker 300 can be reduced.

Further, according to the microwave oven cooker 300 of the present embodiment, by setting the ratio of the opening area of the plurality of slits to the region area when the steam releasing part 270 is viewed from above to be 40% or more and 60% or less, It is possible to ensure an appropriate size for the opening area of the plurality of slits 271 with respect to the area of the vapor release portion 270 in plan view. Therefore, it is possible to appropriately cool the heating space HS while keeping the internal pressure of the heating space HS appropriately so that excessive bubbles are not discharged from the vapor discharge part 270 and the heating space HS is not blown over.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the claims. Some of the configurations of the above embodiments may be omitted, or may be arbitrarily combined in a manner different from the above.

DESCRIPTION OF SYMBOLS 100... Storage container 101... Step part 110... Groove part 120... Container main body 121... One end part 122... Other end part 123... Main-body part 130 Handle 140 Foot 200 Lid 201 Upper end 202 Stepped portion 210 First wall surface 220 Second wall surface 230 Third wall surface 240 Fourth wall surface 250 Connection wall surface 260 Inclined surface 270 Vapor release portion 271 Slit 300 Microwave oven cooker, HS: space for heating

Claims (5)

a storage container that stores a food material to be heated and has an open top when placed on an installation surface;
a lid that is detachably attached to the storage container and closes the top of the storage container to form a heating space for heating the food material;
The lid is
a vapor release portion disposed at one end in the longitudinal direction of the lid portion and having a plurality of slits for communicating the heating space and the external space;
a peripheral wall surface surrounding the steam release portion and having an upper end portion disposed at a first height with respect to the installation surface;
an inclined surface inclined in a direction downward from the other longitudinal end of the lid portion toward the steam discharge portion;
A microwave oven cooker, wherein a second height of the inclined surface at the other end in the longitudinal direction of the lid is lower than the first height. 2. The microwave oven cooker according to claim 1, wherein the plurality of slits are formed to extend along the longitudinal direction of the lid. The lid portion connects the inclined surface at one end in the longitudinal direction of the lid portion and the end portion of the vapor release portion on the inclined surface side, and has a connection wall surface having a larger inclination angle with respect to the installation surface than the inclined surface. 3. The microwave oven cooker according to claim 1 or 2, characterized by comprising: 4. The microwave oven cooker according to any one of claims 1 to 3, wherein an inclination angle of said inclined surface with respect to said installation surface is 1[deg.] or more and 10[deg.] or less. 5. The ratio of the opening area of the plurality of slits to the region area when the steam release portion is viewed from above is 40% or more and 60% or less. Cooker for microwave ovens according to .

Images