TWI429413B - Electric pot - Google Patents

Description

Electric pot

The present invention relates to an electric cooker, and more particularly to an electric cooker having a centrifugally separated gas-liquid separation mechanism.

The conventional electric cooker has a vapor discharge device for allowing the vapor in the electric cooker to be discharged to the outside during cooking, and the vapor port unit of the vapor discharge device is a vapor port casing of the flap mechanism opened above, and is disposed in the vapor port casing. The vapor port cover of the upper opening of the body is formed, and a vapor port is formed on the upper surface of the vapor port cover from the position directly above the valve mechanism to the side thereof. In addition, a plurality of barrier ribs are provided in the interior of the vapor port unit, thereby weakening the flow of steam and rice soup flowing into the inside of the unit, preventing the rice soup from being ejected from the vapor hole, and discharging only the vapor to the outside of the machine body (for example, refer to Patent Document 1) .

[Technical Literature] [Patent Literature]

[Patent Document 1] JP-A-3820541 (page 4 - page 5, figure 3 - figure 4)

In the electric cooker of Patent Document 1, it is necessary to lengthen the flow path from the vapor inflow port to the vapor discharge hole, and it is necessary to make the flow path longer when the input electric power of the heating device is increased. Therefore, the ratio of the volume of the vapor port unit to the volume occupied by the electric cooker body becomes large, and the design limitation is increased.

The present invention has been made in an effort to solve the above problems, and an object thereof is to provide an electric cooker having a vapor port unit, and even if the input electric power of the heating device is large and has a long duration, it can be made small, and the steam and the rice soup are surely separated, and the design restriction is small.

The electric cooker of the present invention comprises: an electric cooker body; a cover body covering an upper opening portion of the electric cooker body; a detachable inner pot placed in the electric cooker body; a heating device for heating the inner pot; a steam port unit, The utility model is disposed in the cover body for discharging steam generated during cooking from the inner pot to the outside of the electric cooker body; the steam port unit has a separating mechanism provided with a flow path for allowing the flow inlet The vapor containing the rice soup flowing in the inside passes through, and in the traveling direction of the steam containing the rice soup in the inside of the flow path, the rice soup is separated in the radial direction of the flow path by centrifugal force, and the vapor is in the traveling direction of the flow path. The upper rice is separated, and the rice soup is discharged from the rice soup discharge port, and the steam is discharged from the steam discharge port.

Because of the separation mechanism, the rice soup is separated in the radial direction of the flow path by the centrifugal force in the traveling direction of the steam containing the rice soup inside the flow path, and the vapor is separated in the traveling direction of the flow path. Even if the input electric power of the heating device is increased and the duration thereof is lengthened, it is possible to surely separate the rice soup and the vapor, and it is possible to achieve miniaturization and reduce design restrictions.

In Fig. 1, the electric cooker main body 1 has an opening at the upper portion, and this opening portion can be opened and closed by the lid body 10. Further, an inner lid 11 is provided inside the lid body 10, and an annular fixing frame (sealing rubber) 12 for sealing the opening of the inner pot 2 is provided at a peripheral portion of the inner lid 11, so that when the lid is closed The vapor does not leak from the upper surface of the inner pot 2 (described later) to the outside of the lid body 10.

In the upper portion of the inner lid 11 of the lid body 10, a vapor port unit 20 having a centrifugal separation type rice soup separating mechanism (a gas-liquid separating mechanism for a centrifugal separation ceremony) is provided, and the rice soup mixed with steam is separated.

In the rice soup separating mechanism, a flow path (described later) is provided inside, and when the vapor of the rice soup entering from the guiding cylinder 22 provided in the retained recess 21 enters the inside of the flow path, the rice soup is separated by centrifugal force, and the rice soup is separated from the rice soup. The discharge port (described later) is discharged to the inner pot 2, and the steam is discharged from the vapor discharge port (described later) and discharged to the outside from the vapor hole 27 in the upper portion of the lid body 10. In order to control the height of the product, the inflow and outflow directions of the rice soup separating mechanism are horizontal. In addition, the inflow and outflow directions of the rice soup separating mechanism can also be perpendicular to the product (ground).

In the electric kettle main body 1, a bottomed cylindrical and detachable inner pot 2 which can be placed in a bottom and a cylindrical shape can be placed, and can be cooked by heating by a heating means 3 such as an electromagnetic induction coil. Further, when the lid 10 of the electric cooker is covered, the fixing frame 12 of the peripheral portion of the inner lid 11 and the flange 2a provided on the outer periphery of the upper end portion of the inner pot 2 are in close contact with each other.

See Figures 2~3 for a detailed description of the rice soup separation mechanism.

Inside the rice soup separating mechanism, for example, a flow path 23 (hereinafter referred to as a cylindrical flow path) through which a steam containing rice soup composed of a substantially cylindrical casing is passed is provided. The cylindrical flow path 23 is formed with a substantially closed space portion (internal space) with respect to the inside of the rice soup separating mechanism, and is provided with steam containing rice soup. The flow inlet 22a (the outlet of the guide cylinder 22), the opposite side of the inlet 22a, that is, the downstream steam discharge port 24, and the rice soup discharge port 25 constitute the flow path casing A (see Fig. 3). Further, a part of the cylindrical flow path 23 may be shared with the elements constituting the internal space of the rice soup separating mechanism, or all of the cylindrical flow paths 23 may be formed by the internal space members constituting the rice soup separating mechanism.

The flow path casing A forming the cylindrical flow path 23 has a larger sectional area from the side of the inflow port 22a toward the vapor discharge port 24, and the velocity of the steam rice soup becomes slower as the sectional area becomes larger, so that the rice is made slower. The soup is easy to fall to the lower side.

Inside the cylindrical flow path 23, a spiral partitioning plate (spiral wing) 26 is provided which intersects the advancing direction of the steam containing the rice soup in a perpendicular direction to form a spiral flow path. Moreover, the vapor and the rice soup are separated by spirally refluxing the mixed fluid of the steam and the rice soup. Further, the spiral separator 26 described above is made of an elastic material such as silicone rubber. In this way, the upstream side of the flow path casing A is blocked on the side of the inflow port 22a, and the spiral partition portion B formed by the spiral partition plate 26 is fitted to the downstream side (see FIG. 3). ).

Further, the spiral partition plate 26 as described above is not used, and as shown in FIG. 4, the shaft 30 may be provided at the center portion of the cylindrical flow path 23 in the flow path direction. In this case, the cross-sectional shape of the shaft 30 is preferably a substantially conical cylindrical shaft whose diameter becomes smaller as it approaches the downstream direction from the inflow port 22a.

The inflow port 22a (guide tube 22) leading to the cylindrical flow path 23 is located so that the center of the cylinder of the flow path case A of the cylindrical flow path 23 is shifted toward one side The position, that is, the position in the tangential direction of the inner wall of the flow path casing A. Thereby, the steam rice soup is forcibly spiraled, and the steam and the rice soup are separated by the centrifugal force.

A steam discharge port 24 is provided at a substantially central portion of the outlet side (downstream side) of the cylindrical flow path 23, and a rice soup discharge port 25 is provided on the lower outer peripheral side of the downstream side of the cylindrical flow path 23. The steam containing the rice soup forms a spiral flow by the centrifugal force, the rice soup is separated on the outer side in the radial direction of the cylindrical flow path 23, and the vapor is separated into the central portion of the cylindrical flow path 23, respectively, from the vapor discharge port 24 and the rice soup. The discharge port 25 is discharged.

Further, the steam discharge port 24 is provided at a substantially central portion on the outlet side of the cylindrical flow path 23, but may be offset to the opposite side of the rice soup discharge port 25 in the radial direction outer side of the center portion, so that the vapor is swirled in the vapor. The discharge port 24 is slowed down, so that the vapor is easily discharged.

In addition, the rice soup discharge port 25 is disposed outside the spiral flow to separate the rice soup, but in this case, the cross-sectional shape of the inner space portion of the housing of the rice soup discharge port 25 provided at the lower portion of the outer side of the spiral flow is, the closer to the rice The portion of the soup discharge port 25 is larger, and particularly in the case of a cylindrical flow path, the cylindrical cross-sectional shape can be made larger toward the discharge port side to have a partial swirl shape.

The steam discharge port 24 provided on the outlet side of the cylindrical flow path 23 is formed as an inlet portion of the cylindrical vapor outflow tube 24a, and extends from the cylindrical flow path 23 to the vicinity of the vapor hole 27 as a vapor outlet. Thereby, it is possible to prevent the separated vapor and the rice soup flowing out to the outside of the cylindrical flow path 23 from being mixed again. Further, the vapor outflow tube 24a is extended to the vicinity of the vapor hole 27 on the downstream side thereof, and can be directly connected to the vapor hole 27, so that It is enough to prevent it from mixing with the rice soup that flows out to the outside.

In addition, the vapor discharge port 24, that is, the upstream side of the vapor outflow tube 24a, extends in a cylindrical shape inside the cylindrical flow path 23 (upstream side), and the system functions to return the separated rice soup from this. 'effect.

As described above, the vapor discharge portion C having the vapor outflow tube 24a is fitted to the outlet side of the cylindrical flow path 23 (see Fig. 3).

In the above description, as shown in Fig. 3, the rice soup separating mechanism is shown in which three parts of the flow path casing A, the spiral partition portion B, and the vapor discharge portion C are fitted, but the spiral The partition portion B and the vapor discharge portion C may be formed integrally.

Note that the operation of the electric cooker having the steam port unit 20 having the rice soup separating mechanism as described above will be described.

The water and the rice inner pot 2 are placed in the main body 1 of the electric cooker and the lid body 10 is closed. When the power switch (ON) provided in the operation portion is opened, the inner pot 2 is heated by the action of the electromagnetic induction coil 3, When the water in the inner pot 2 boils, steam containing rice soup is produced. At this time, since the internal pressure of the inner pot 2 rises, the opening and closing flap 28 of the vapor port unit 20 is pushed upward, so that the rice soup return hole 28a is plugged, and therefore, the vapor containing the rice soup passes through the guiding cylinder 22, and is guided to The inside of the cylindrical flow path 23 of the rice soup separation mechanism.

The steam containing the rice soup leaving the guiding cylinder 22 flows into the inside of the flow path from the tangential direction of the inner wall of the cylindrical flow path 23, and is forced to spiral in the spiral flow path along the spiral partition plate 26. The centrifugal force is used to separate the vapor from the rice soup. Then, the vapor is discharged from the vapor discharge port 24 through the vapor outflow cylinder 24a, and is released from the vapor hole 27 to the outside of the machine. On the other hand, rice soup is rice soup The discharge port 25 is discharged, and the accumulated recessed portion 21 is accumulated.

Thereafter, when the heating is stopped and the internal pressure of the inner pot 2 is lowered, the opening and closing flap 28 is lowered by its own weight and the weight of the rice soup, so that the rice soup return hole 28a provided on the bottom surface of the retained recess 21 is opened. Thereby, the rice soup accumulated in the retention recessed portion 21 falls back from the rice soup return hole 28a to the inner pot 2. By returning the rice soup to the rice in the inner pot 2, the delicious ingredients contained in the rice soup can be added to the rice, and a delicious and glossy meal can be cooked.

The vapor port unit 20 of the electric cooker of the present invention has a separating mechanism which has a flow path 23 through which the steam containing the rice soup flows from the inflow port 22a, and the steam containing the rice soup inside the flow path 23 advances. In the direction, the rice soup is separated in the radial direction of the flow path 23 by the centrifugal force, and the vapor is separated in the advancing direction of the flow path 23. Therefore, even if the input electric power of the heating device 30 increases for a long period of time, the steam and the rice soup can be surely set. Separation, and can achieve miniaturization, and design constraints are also small.

1‧‧‧electric cooker body

2‧‧‧ inner pot

3‧‧‧Electromagnetic induction coil (heating device)

10‧‧‧ cover

20‧‧‧Steam port unit

22‧‧‧Guide tube

22a‧‧‧Inlet

23‧‧‧Cylinder flow path (flow path)

24‧‧‧Vapor discharge

24a‧‧‧Vapor effluent

25‧‧‧ rice soup outlet

26‧‧‧Spiral divider

27‧‧‧Vapor holes (discharge steam to the exit of the machine)

30‧‧‧Cylindrical shaft

A‧‧‧Flow path housing

B‧‧‧Spiral divider

C‧‧‧Vapor Removal Department

Fig. 1 is a longitudinal sectional view showing an electric cooker according to an embodiment of the present invention

Fig. 2 is a perspective view showing the cut state of the steam port unit of Fig. 1;

Figure 3 is an exploded perspective view of an important part of the vapor port unit of Figure 1.

Fig. 4 is a view showing another example of the cut state of the steam port unit of Fig. 1;

1. . . Electric cooker body

2. . . Inner pot

2a. . . Flange

3. . . Electromagnetic induction coil (heating device)

10. . . Cover

11. . . Inner cover

12. . . Fixed frame

20. . . Vapor port unit

twenty one. . . Concave

twenty two. . . Guide cylinder

22a. . . Inflow

twenty three. . . Cylindrical flow path (flow path)

twenty four. . . Vapor discharge

24a. . . Vapor outflow tube

25. . . Rice soup outlet

26. . . Spiral divider

27. . . Vapor hole (discharge steam to the outlet outside the machine)

28. . . Open and closed flap

28a. . . hole

Claims (15)

An electric cooker comprising: an electric cooker body; a cover body covering an upper opening portion of the electric cooker body; an inner pot placed in the electric cooker body for loading and unloading; a heating device for heating the inner pot; and a steam port unit, Provided in the cover body for discharging steam generated during cooking from the inner pot to the outside of the electric cooker body; characterized in that the steam port unit has a separating mechanism provided with a flow path for letting The vapor containing the rice soup flowing into the inside of the inflow port passes through, and in the traveling direction of the steam containing the rice soup in the inside of the flow path, the rice soup is separated in the radial direction of the flow path by centrifugal force while the vapor is in the flow path. Separating in the traveling direction, discharging the rice soup from the rice soup discharge port, and discharging the steam from the steam discharge port; wherein the separating mechanism has a spiral partition plate configured to contain the rice soup inside the flow path The direction of travel of the vapor is slightly vertical and the vapor and rice soup are separated by centrifugal force. The electric cooker according to claim 1, wherein the spiral partition plate is made of an elastic material. An electric cooker comprising: an electric cooker body; a cover body covering an upper opening portion of the electric cooker body; an inner pot placed in the electric cooker body for loading and unloading; and a heating device for heating the inner pot; a vapor port unit disposed in the cover body for discharging steam generated during cooking from the inner pot to the outside of the electric cooker body; wherein the steam port unit has a separating mechanism provided with a flow path The steam containing the rice soup flowing in from the inflow port is passed through, and the steam is separated in the radial direction of the flow path by centrifugal force in the traveling direction of the steam containing the rice soup inside the flow path. Separating in the traveling direction of the flow path, discharging the rice soup from the rice soup discharge port, and discharging the vapor from the steam discharge port; wherein the separating mechanism has a traveling direction of the vapor containing the rice soup inside the flow path A slightly cylindrical shaft separating the vapor and the rice soup by centrifugal force; wherein the slightly cylindrical axis is reduced in diameter toward the traveling direction of the steam containing the rice soup in the flow path. The electric cooker according to any one of the items 1 to 3, wherein the flow path including the vapor separation of the rice soup forms an almost sealed space portion. The electric cooker according to claim 4, wherein the sealed space is a space slightly cylindrical. The electric cooker according to claim 4, wherein the cross-sectional area of the sealed space is larger toward the vapor discharge port side from the inlet. The electric cooker according to any one of claims 1 to 3, wherein the inflow position of the steam containing the rice soup flowing into the flow path is slightly tangential to the inner wall of the flow path. The electric cooker according to any one of claims 1 to 3, wherein the rice soup discharge port is provided in the radial direction of the flow path. The electric cooker according to claim 8, wherein the rice soup discharge port is provided at an outer lower portion of the swirling flow in the radial direction of the flow path. The electric cooker according to the ninth aspect of the invention, wherein the cross-sectional shape of the inner space portion of the outer casing of the rice soup outlet portion provided at the outer lower portion of the swirling flow is increased toward the discharge port side. The electric cooker according to any one of claims 1 to 3, wherein the steam discharge port is provided at a substantially central portion of the flow path in the radial direction. The electric cooker according to any one of claims 1 to 3, wherein the steam discharge port is provided at a position shifted from a central portion in the radial direction of the flow path to one side. The electric cooker according to any one of claims 1 to 3, wherein a vapor discharge port is provided downstream of the flow path, and the vapor discharge port is extended to an outlet for discharging the vapor to the outside of the machine. nearby. The electric cooker according to claim 13, wherein the vapor discharge port is provided to extend in a cylindrical shape to the flow path side. The electric pan according to any one of claims 1 to 3, wherein the flow path for separating the vapor containing the rice soup is set to a slightly horizontal level.