JP6093666B2 - Water heating vessel - Google Patents

Description

  The present invention includes a container main body having an opening on the upper side, a storage portion inside, a heating mechanism for heating water in the storage portion, a lid that can open and close the upper opening of the container main body, and a storage portion and the outside. Steam that communicates and allows the water in the reservoir to flow to the outside via the spout, and the steam that allows the steam in the reservoir to flow to the outside via the steam outlet, communicating the reservoir and the outside. The present invention relates to a water heating container provided with a flow path.

Examples of this type of water heating container include an electric kettle and an electric kettle. However, in the electric kettle described in Patent Document 1, the reservoir and the outside communicate with each other inside the lid, and the water in the reservoir An outflow passage through which the steam flows out through the spout and a steam passage through which the reservoir and the outside communicate with each other and the steam in the storage portion flows outside through the steam outlet. The steam outlet is provided on the upper surface of the lid.
The steam flow path includes a common steam chamber communicating with the storage section at the upper portion of the storage section, a derivation flow path communicating with the common steam chamber and the steam discharge port, and detection for detecting the temperature of the common steam chamber and steam. And a detection flow channel communicating with the portion. The detection flow path is configured to extend to the rear side (handle side) of the common steam chamber and reach the detection unit located on the rear side (handle side) of the lid.
As a result, a part of the steam generated in the storage part is exhausted to the outside from the steam discharge port formed in the upper surface of the lid body positioned above the storage part through the outlet channel. The other part is configured to flow through the detection flow path and reach the detection part.

Moreover, as an electric kettle described in Patent Document 2 as this type of water heating vessel, the flow path for the vapor flow path communicates with the downstream side of the valve mechanism that can open and close the storage section and the discharge flow path. By providing as described above, the steam generated in the storage portion is caused to flow through the outlet channel and the outlet channel, and is discharged to the outside through the spout (steam outlet).
As a result, the amount of steam discharged from the spout (steam outlet) is reduced when the steam flows through a relatively long steam channel (outflow channel) and outlet channel. It can be reduced to some extent.

JP 2009-172172 A JP 2012-170706 A

However, as in the electric kettle described in Patent Document 1, when the steam discharge port is formed in the upper surface of the lid, the steam generated in the storage part maintains the flow rate when rising from the storage part. , Since it flows through the discharge passage formed relatively short and is discharged to the outside from the steam discharge port, the amount of steam tends to be relatively large, the humidity of the outside (such as indoors) increases, dew condensation and There is also concern about the occurrence of mold.
Moreover, in the electric kettle described in Patent Document 2, the amount of steam discharged from the spout (steam discharge port) can be reduced to some extent, but problems such as an increase in the humidity outside the room (such as indoors) remain.
Therefore, it is strongly desired to improve the humidity of the outside (in the room, etc.) further by improving it with a simple and inexpensive method so that the amount of steam discharged from the steam outlet can be further reduced.

  The present invention has been made in view of the above-described circumstances, and a main problem thereof is a water heating container that can effectively reduce the amount of steam discharged from the steam discharge port by simple and inexpensive improvement. The point is to provide.

In order to achieve the above object, a water heating container according to the present invention includes a container body having an opening on the upper side and having a storage part therein, a heating mechanism for heating water in the storage part, and an upper opening part of the container body. A lid that can be freely opened and closed, the storage section and the outside communicate with each other, and the drainage passage that allows the water in the storage section to flow outside through the spout, and the storage section and the outside communicate with each other. A water heating vessel provided with a steam flow path for allowing the steam in the storage part to flow to the outside through a steam discharge port,
The steam flow path is formed with a steam introduction port communicating with the storage section, and a swell formed in a flow passage cross-sectional area larger than the flow passage cross-sectional area of the steam introduction port, by introducing steam from the steam introduction port And the steam discharge port for discharging the steam from the bulging part to the outside,
In the bulging portion, there is provided a narrow portion formed in a channel cross-sectional area smaller than the channel cross-sectional area of the bulging portion,
The bulging portion is partitioned so as to have an upstream space where the first steam inlet of the steam inlet is connected in communication and a downstream space where the steam outlet is connected, across the narrow portion. It is in a formed point.

  According to the above characteristic configuration, the swelled portion has an upstream space and a steam exhaust port in which the first steam inlet port of the steam inlet port is connected in communication with the narrow portion formed in the swelled portion of the steam channel interposed therebetween. Are formed so as to have a downstream space connected to each other, so that the steam generated in the reservoir due to the heating of the water in the reservoir by the heating mechanism is transferred to the steam flow path, that is, the steam inlet port. 1 steam introduction port, the inside of the bulging part (upstream space, narrow part, downstream space) and the steam discharge port are allowed to flow in this order and can be discharged to the outside through the steam discharge port.

At this time, the flow passage cross-sectional area of the bulging portion is formed larger than the flow passage cross-sectional area of the first steam inlet, so that it passes through the first steam inlet and is introduced into the upstream space of the bulging portion. The pressure and temperature of the generated steam can be reduced, and condensation of the steam can be promoted.
Moreover, since the narrow part provided in the bulging part is formed in a channel cross-sectional area smaller than the channel cross-sectional area of the bulging part (upstream space, downstream space), the first steam inlet port is The steam that has passed through and introduced into the upstream space of the bulging portion can be actively retained in the upstream space, the temperature of the steam can be further reduced, and the condensation of the steam can be further reduced. Can be promoted.
Furthermore, since the narrow part provided in the bulging part is formed to have a channel cross-sectional area smaller than the channel cross-sectional area of the bulging part (upstream space, downstream space), the narrow part from the upstream space The pressure and temperature of the steam that has passed through the downstream space and introduced into the downstream space can be further reduced, and condensation of the steam can be further promoted.

  In this way, the pressure of the steam flowing through the steam channel is improved by providing a simple and inexpensive improvement in which the first steam inlet and the bulging part, particularly the narrow part in the bulging part, are provided in the steam channel. In addition, it is possible to provide a water heating container that can reliably reduce the temperature, promote condensation, and can effectively reduce the amount of steam discharged from the steam outlet.

  A further characteristic configuration of the water heating container according to the present invention is such that a detection steam channel having a detection unit for detecting the temperature of the steam introduced from the first steam inlet is branched and connected to the upstream space. It is in the point.

  According to the above characteristic configuration, the detection steam provided with the detection unit for detecting the temperature of the steam introduced from the first steam introduction port in the upstream space defined by the narrow part provided in the bulging part. Since the flow path is branched and connected, the steam that has passed through the first steam introduction port and introduced into the upstream space stays in the upstream space, and is also actively introduced into the detection steam flow path. Therefore, the temperature of the staying steam can be detected early and stably by the detection unit provided in the detection steam flow path, and the temperature detection accuracy can be reliably improved.

  The water heating container according to the present invention is further characterized in that the steam inlet includes the first steam inlet and the second steam inlet, and the flow path cross-sectional area of the first steam inlet is the first steam inlet. The second steam inlet is formed in a channel cross-sectional area larger than that of the two steam inlets, and the second steam inlet is connected to the downstream space.

  According to the above characteristic configuration, since the first steam inlet having a large flow path cross-sectional area is connected to the upstream space, most of the steam passing through the bulging portion has the first steam inlet. When passing through and being introduced into the upstream space, when staying in the upstream space, and further through the narrow space from the upstream space and being introduced into the downstream space, the pressure and temperature are reduced. Since condensation is promoted, the amount of steam discharged from the steam outlet can be reduced. When the above-described detection steam flow path is branched and connected to the upstream space, the steam that has passed through the first steam inlet and introduced into the upstream space is the upstream space and the detection space. Since it stays in the steam flow path, the temperature of the staying steam can be detected early and stably by the detection unit provided in the detection steam flow path, and the temperature detection accuracy can be improved reliably. it can.

  On the other hand, since the second steam inlet having a small channel cross-sectional area is connected to the downstream space, a relatively small part of the steam passing through the bulging part does not pass through the narrow part. When passing through the second steam introduction port and being introduced into the downstream space of the bulging portion having a larger flow path cross-sectional area than the second steam introduction port, the pressure and temperature are reduced and condensation is promoted. The amount of steam discharged from the steam discharge port can be reduced.

  In addition, when a container main body falls between a 1st steam inlet and a 2nd steam inlet, and a storage part, a pair of fall which closes each of a 1st steam inlet and a 2nd steam inlet separately Even when the configuration in which the water stop valve is arranged is adopted, the pair of overturn stop water valves are connected to the upstream side space where the first steam inlet is connected and the downstream where the second steam inlet is connected. It can distribute and arrange | position to the location corresponding to side space, and can prevent that a bulging part becomes larger than necessary.

A further characteristic configuration of the water heating container according to the present invention is such that a detection steam channel having a detection unit for detecting the temperature of the steam introduced from the first steam inlet is branched and connected to the upstream space. And
In the upstream space, a guide wall provided with a tapered surface that is inclined toward the detection steam flow path side from the upstream side toward the downstream side at a position located between the narrow portion and the first steam introduction port. Is constructed such that the steam introduced from the first steam inlet into the upstream space is guided to the detection steam flow path by the guide wall.

According to the above characteristic configuration, the upstream side space is branched and connected to the detection steam flow path including the detection unit that detects the temperature of the steam introduced from the first steam introduction port, and the narrow portion and the first portion. Since a guide wall having a tapered surface inclined to the detection steam flow path side from the upstream side toward the downstream side is erected at a position located between the steam inlet and the steam generated in the storage part, When introduced into the upstream space via the first steam inlet, it is guided along the tapered surface of the guide wall from the upstream side toward the downstream side and passes toward the detection steam channel side, that is, toward the detection unit. It will flow.
Thereby, the steam introduced into the upstream space from the first steam inlet can be surely flowed in a state of being properly guided toward the detection part of the detection steam flow path, and the temperature of the steam in the detection part The detection accuracy can be improved while speeding up the detection.

  A further characteristic configuration of the water heating container according to the present invention is such that the guide wall surrounds the portion on the narrow portion side in the peripheral portion of the first steam inlet and opens to the detection steam channel side. It is in the point formed in the truncated cone shape provided with the part.

  According to the above-described characteristic configuration, the steam introduced into the upstream space through the first steam introduction port moves to the narrow portion of the peripheral portion of the first steam introduction port as it goes from the upstream side to the downstream side. Along the tapered surface formed on the surrounding frustoconical guide wall, the flow to the narrow portion side is blocked and more appropriately guided to the detection steam channel side, and the opening is opened to the detection steam channel side. Through the formed opening, it can be made to flow more reliably toward the detection part of the detection steam flow path, and the detection accuracy can be further improved while further detecting the temperature of the steam in the detection part. it can.

According to a further characteristic configuration of the water heating container according to the present invention, the narrow portion is smaller than the flow passage cross-sectional area of the bulging portion by a pair of baffle plates standing from the inner surface of the bulging portion. It is configured to have a channel cross-sectional area,
At least a main portion of the steam introduced into the upstream space from the first steam inlet through a main gap portion constituting at least a part of the narrow portion formed between the pair of baffle plates. It exists in the point comprised so that it may flow through the said downstream space.

According to the above characteristic configuration, the narrow portion provided in the bulging portion can be formed by erecting a pair of baffle plates from the inner surface of the bulging portion, so that the flow path of the bulging portion can be simply and inexpensively improved. A narrow portion having a channel cross-sectional area smaller than the cross-sectional area can be formed.
Further, at least a main portion of the steam introduced into the upstream space from the first steam introduction port is downstream through a main gap portion that is formed between the adjacent baffle plates and forms at least a part of the narrow portion. Since it is configured to flow through the side space, the provision of a pair of baffle plates can reduce the pressure and temperature of the main portion of the steam introduced into the first steam inlet and prevent condensation. it can.

  A further characteristic configuration of the water heating container according to the present invention is that the main gap portion and the guide wall are provided in a substantially central portion of the bulge portion in a cross-sectional view, and the width of the guide wall is the main gap portion. The guide wall and the main gap portion are arranged at positions where they are overlapped with each other.

According to the above characteristic configuration, the steam introduced into the upstream space from the first steam inlet becomes easier to stay in the upstream space, and passes from the upstream space to the downstream space through the narrow portion. When flowing, the pressure and temperature are further reduced to facilitate the condensation, and the steam discharged from the steam outlet can be further reduced.
Specifically, the steam introduced into the upstream space from the first steam inlet is first of the truncated cone-shaped guide wall erected at a position located between the narrow portion and the first steam inlet. It is guided to the detection steam flow path by the tapered surface, flows toward the detection section, and stays in the detection steam flow path and the upstream space. Thereafter, the steam flows through the upstream space from the upstream side to the downstream side, that is, through the guide wall side and the narrow side opposite to the detection steam flow path side.
Here, since the guide wall and the main gap portion (the main gap portion formed between the adjacent baffle plates constituting the narrow portion) are provided in a substantially central portion of the bulging portion in a cross-sectional view. The steam meanders in the upstream space so as to pass through both sides of the guide wall while avoiding the guide wall in the central part, and then avoids the pair of baffle plates on both sides and avoids the main gap part in the central part. Will flow in a meandering manner so as to pass through and be introduced into the downstream space. For this reason, the vapor flowing through the upstream space is discharged from the vapor discharge port because pressure and temperature are reduced due to meandering or collision with the guide wall or baffle plate, etc., and condensation is promoted. The amount of steam can be further reduced.

A further characteristic configuration of the water heating container according to the present invention is that a valve mechanism capable of opening and closing the pouring channel is provided in the pouring channel,
A downstream side of the bulging portion of the steam channel is communicated with a downstream side of the valve mechanism in the pouring channel so that the steam in the bulging portion is discharged from the spout as the steam discharge port. It is in the point which is comprised.

  According to the above characteristic configuration, the downstream side of the bulging portion of the steam channel is communicated with the downstream side of the valve mechanism in the pouring channel so that the steam in the bulging portion is discharged from the spout serving as the steam discharging port. Since the steam generated in the reservoir is passed through a relatively long steam channel (pouring channel), the pressure and temperature are reduced and condensation is promoted. The amount of steam discharged from the can be reduced.

A further characteristic configuration of the water heating container according to the present invention is such that a detection steam channel having a detection unit for detecting the temperature of the steam introduced from the first steam inlet is branched and connected to the upstream space. And
The narrow portion is located at a position biased toward the detection steam flow path in the bulging portion.

According to the above characteristic configuration, the detection steam provided with the detection unit for detecting the temperature of the steam introduced from the first steam introduction port in the upstream space defined by the narrow part provided in the bulging part. Since the flow path is branched and connected, the steam that has passed through the first steam introduction port and introduced into the upstream space stays in the upstream space, and is also actively introduced into the detection steam flow path. Therefore, the temperature of the staying steam can be detected early and stably by the detection unit provided in the detection steam flow path, and the temperature detection accuracy can be reliably improved.
In addition, since the narrow portion is disposed at a position deviated to the detection steam flow path side in the bulging portion, the steam introduced from the first steam introduction port is quickly transferred to the upstream space and the detection steam flow path. This makes it easier to stay and makes the detection part less susceptible to fluctuations in the flow state of the steam (steam flow rate, flow rate, etc.), improving the accuracy while speeding up the temperature detection of the steam in the detection part. .

Perspective view showing appearance of electric kettle Perspective view of electric kettle with kettle body lifted from power plate Vertical side view of the kettle body Vertical side view of the main part of the kettle body Perspective view of the main part of the kettle body Perspective view of steam flow path forming member Bottom view of steam flow path forming member Exploded perspective view of steam flow path forming member Exploded perspective view of steam flow path forming member XX direction view of FIG. XI-XI direction view of FIG. XII-XII direction view of FIG. Exploded perspective view of a steam flow path forming member according to another embodiment

An embodiment of an electric kettle (an example of a water heating container) according to the present invention will be described based on the drawings.
As shown in FIGS. 1 to 3, the electric kettle includes a power supply plate 1 for supplying power and a kettle main body 2 that is detachably mounted on the power supply plate 1. A container body 4 having an inner container (an example of a storage unit) 3 inside, an electric heater (an example of a heating mechanism) 5 for heating hot water (an example of water) in the inner container 3, 3), and a lid 6 that can freely open and close the upper opening 4A of the container body 4.

The power supply plate 1 is formed in a plate shape having a circular outer shape, and includes a power feeding mechanism 1A that protrudes upward from the upper surface at the center side of the upper surface.
The container body 4 of the kettle body 2 is formed in a bottomed cylindrical shape, and includes a power receiving mechanism 2A that is recessed upward from the bottom surface at the center side of the bottom surface (see FIG. 3).
Then, by placing the kettle body 2 on the power supply plate 1 to which commercial power is supplied via the power cord 1B, the electric heater 5 of the kettle body 2 is energized via the power supply mechanism 1A and the power receiving mechanism 2A. The hot water in the inner container 3 is heated.

  The container body 4 is integrally provided with a lip 7 on the inner periphery, and the bottomed cylindrical inner container 3 is suspended and supported on the lip 7 so that the inner container 3 is placed inside the container body 4. Configured to house. An upper opening 4 </ b> A of the container body 4 is formed on the inner peripheral side of the lip 7. And the electric heater 5 is arrange | positioned under the bottom part of the inner container 3 in the state accommodated in the inside of the container main body 4. FIG. In addition, as the electric heater 5, a well-known electric heater can be employ | adopted, for example, a sheathed heater can be employ | adopted.

  A handle 8 for lifting the kettle body 2 is provided on the outer periphery of the container body 4, and a spout 9 for pouring hot water in the inner container 3 is provided on the upper side of the outer periphery of the container body 4. 8 and the spout 9 are provided on the opposite sides of the center of the upper portion of the kettle body 2. And it is comprised so that the hot water in the inner container 3 can be poured from the spout 9 by holding the handle | steering-wheel 8 and lifting the kettle main body 2 and inclining so that the spout 9 may become a lower side. .

  In the following description, the direction connecting the spout 9 and the handle 8 in the kettle body 2 is the front-rear direction, the front side is the front side, and the handle 8 side is the rear side. 3, the direction perpendicular to the front-rear direction in the kettle main body 2 is defined as the left-right direction, the back side of the paper of FIG. 3 is the right side, and the front side of the paper is the left side. The direction connecting the lid body 6 and the lid body 6 will be referred to as the vertical direction, the bottom side of the container body 4 will be the lower side, and the lid body 6 side will be the upper side.

A groove-like portion 7m constituting a lower portion of the spout 9 is formed in the mouth edge portion 7 of the container main body 4, and an upper portion of the spout 9 is formed in a lid main body member 20 of the lid 6 described later. A collar portion 20e is provided.
Then, the lid 6 is placed in the upper opening 4A of the container body 4 in a relative positional relationship for mounting the lid so that the flange portion 20e of the lid body member 20 covers the upper portion of the groove-like portion 7m of the lip 7. When attached, the cylindrical spout 9 is formed by the groove-shaped portion 7 m of the mouth edge portion 7 and the flange portion 20 e of the lid main body member 20.

  An upper portion and a lower portion of the handle 8 are respectively fixed to an upper portion and a lower portion of the outer peripheral portion of the container body 4. An operation unit 10 having an operation switch 10A for instructing start and stop of a boiling water operation is disposed on the outer surface of the handle 8 opposite to the container body 4, and when the operation switch 10A is operated, The electric heater 5 can be turned on / off by a control unit (not shown) provided.

The lid 6 includes a lid body member 20, a lid cover 21 above the lid body member 20, an inner lid plate 22 below the lid body member 20, and an annular sealing material 23 that seals the outer peripheral portion of the inner lid plate 22. And are integrally assembled.
The inner lid plate 22 formed in a disc shape is formed with a plurality of hot and cold water circulation holes (not shown) and steam circulation holes (not shown), and the lid body member 20 and the inner lid plate 22 in the lid body 6. A communication space 30 that communicates with the inner container 3 of the container body 4 through a plurality of hot water flow holes and steam flow holes formed in the inner lid plate 22 is formed.

  Further, the lid body 6 includes a pair of hook members 24 that hold the lid body 6 in a closed position that closes the upper opening 4A of the container body 4, a valve mechanism V that can open and close a pouring channel 31 described later, A valve operating tool 26 is provided for switching the open / close state of the valve body 25 of the valve mechanism V depending on whether or not the passage of hot water in the inner container 3 from the spout 9 is permitted.

  The inside of the lid 6 communicates the communication space 30 facing the inner container 3 with the outside through the spout 9, and the pouring flow for flowing hot water in the inner container 3 to the outside through the spout 9. A passage 31, a valve mechanism V provided in the extraction flow path 31 and capable of opening and closing the extraction flow path 31; a communication space 30 facing the inner container 3; and a downstream side of the valve mechanism V in the extraction flow path 31. A steam flow path 32 is formed which communicates the steam generated from the hot water in the inner container 3 to the downstream side of the valve mechanism V in the discharge flow path 31.

  The lid body member 20 immediately downstream of the communication space 30 in the steam flow path 32 is provided with a tipping stop water valve Q. In this overturn stop water valve Q, two weight bodies 33A and 33B are provided to move so as to close the first steam introduction port 32A and the second steam introduction port 32B of the steam channel 32 when the container body 4 falls. Each of the weight bodies 33A and 33B is accommodated in each of valve accommodating portions 32a and 32b formed in the lid body member 20 so as to be recessed downward. Therefore, even if the container body 4 falls, the two weight bodies 33A and 33B close the valve openings 32a and 32b so that the first steam inlet 32A and the second steam inlet 32B of the steam channel 32 are closed. It is possible to prevent the hot water contained in the inner container 3 from flowing into the bulging portion 41f described later. When viewed from above, positioning ribs 20b are formed on the outer periphery of the valve housing portions 32a and 32b on the upper surface of the lid body member 20 so as to protrude upward in a state of surrounding the entire circumference (see FIG. 4).

The valve mechanism V includes a valve seat 20 a provided on the lid body member 20, a valve body 25 that prevents outflow of hot water while being in contact with the valve seat 20 a, and the valve body 25 as an upper surface of the inner lid plate 22. And a spring 27 that urges toward the closed state (upper side), and the valve body 25 of the valve mechanism V moves in the vertical direction so that the valve body 25 and the valve seat 20a come into contact with each other. By being separated, the extraction flow path 31 is configured to be openable and closable. Specifically, the valve body 25 includes a valve shaft 25a extending in the up-down direction, a disk-shaped main body 25b extending in a generally disk shape radially outward at a lower portion of the valve shaft 25a, And a spring mounting portion 25c extending in a cylindrical shape from the lower surface of the disk-shaped main body 25b. The spring 27 is mounted between the spring mounting portion 25c and the upper surface of the inner lid plate 22, and the valve shaft 25a is moved in the vertical direction so that the upper surface of the disc-shaped main body 25b and the valve seat 20a are brought into contact with or separated from each other. The pouring channel 31 is configured to be openable and closable.
In addition, in a top view, a through hole 20c penetrating the lid main body member 20 in the vertical direction is formed at a position corresponding to the upper portion of the disc-shaped main body 25b on the upper surface of the lid main body member 20, and the upper portion of the through hole 20c. A circular rib (not shown) protruding upward is formed at the peripheral edge. The through-hole 20c is configured to communicate with the opening 61a in a state in which the circular rib is fitted in an opening 61a formed at the downstream end of the steam flow path forming member 40 described later. The through hole 20c functions as a steam outlet 32C formed at the downstream end of the steam channel 32.

The valve operating tool 26 is provided between the spout 9 and the handle 8 and mainly includes a first operating tool 26A and a second operating tool 26B.
One end side (rear side in the front-rear direction) of the first operation tool 26A is exposed from the upper surface of the lid cover 21, and the other end side (front side in the front-rear direction) is accommodated in the lid cover 21. The end side is configured to swing up and down around a swing shaft 26a extending in the left-right direction.
The second operation tool 26B has a lower end on one end side (rear side in the front-rear direction) engaged with an upper part on the other end side of the first operation tool 26A, and the other end side (front side in the front-rear direction). Is configured to be located above the upper end of the valve shaft 25a of the valve body 25 of the valve mechanism V. The second operation tool 26B is biased by the spring member 26C at one end side downward and the other end side upward, and accordingly, the first operation is engaged with one end side of the second operation tool 26B. The tool 26A is also urged with one end side upward and the other end side downward. In addition, a part of one end side (rear side in the front-rear direction) of the second operation tool 26B is formed in an elliptical shape having an opening (not shown) on the inner side in a top view, and a steam flow path formation to be described later By fitting the opening into the bulging portion 41f of the steam flow path forming member 40 in a state where the member 40 is mounted on the lid body member 20, the bulging portion 41f and the second operation tool 26B do not interfere with each other. (See FIG. 5).

Therefore, in a natural state where the valve operating tool 26 is not operated, the other end side of the second operating tool 26B does not contact the valve shaft 25a of the valve body 25 due to the biasing force of the spring member 26C, and the valve body of the valve mechanism V The upper surface of the disc-shaped main body 25b of 25 remains in contact with the valve seat 20a, and the dispensing flow path 31 is closed. In this closed state, even if the kettle body 2 is tilted, hot water in the inner container 3 does not leak from the spout 9.
On the other hand, by pressing one end of the first operating tool 26A downward against the urging force of the spring member 26C, the other end of the second operating tool 26B moves downward and the valve of the valve body 25 The upper end of the shaft 25a is pressed and moved downward, the upper surface of the disc-like main body 25b of the valve body 25 is separated from the valve seat 20a, and the dispensing flow path 31 is opened. By tilting so that the pouring spout 9 is on the lower side in this open state, the hot water in the inner container 3 can be allowed to flow outside through the pouring spout 9.

As shown in FIGS. 3 to 12, the steam flow path 32 communicates the communication space 30 facing the inner container 3 and the spout 9 on the downstream side of the valve mechanism V in the discharge flow path 31. The steam generated from the hot and cold water is made to flow downstream of the valve mechanism V in the pouring channel 31 and discharged to the outside through the spout 9. Specifically, as shown in FIG. 3 and FIG. 4, the steam flow path 32 has a steam flow hole, a communication space 30, an overturn stop valve Q, a first steam introduction port 32 </ b> A, and a second steam introduction from the upstream side. The outlet 32B, the bulging portion 41f, the outlet steam passage 61, the steam outlet 32C, the downstream side of the valve mechanism V in the outlet passage 31, and the outlet (an example of the steam outlet) 9 are configured.
Among the steam channels 32, the first steam inlet 32 </ b> A, the second steam inlet 32 </ b> B, the bulging part 41 f, and the bulging part 41 f communicate with the downstream side of the valve mechanism V in the pouring channel 31. A part of the outlet steam passage 61 communicating with the extraction passage 31 through the steam outlet 32C formed at the downstream end is formed by the steam passage forming member 40.

  The steam flow path forming member 40 is a temperature detection that detects the temperature of the steam in the steam flow path 32 and the upper member 41 and the lower member 42 that are plate-like members having substantially similar outer shapes in plan view and long in the front-rear direction. A tool (an example of a detection unit) 43 and a packing member 44 for attaching the temperature detector 43 to the upper member 41 and the lower member 42 in a sealed state are assembled. Note that the upper member 41 and the lower member 42 of the steam flow path forming member 40 are configured to be detachable on the upper surface of the lid main body member 20 so that the longitudinal direction is along the front-rear direction, and can be fixed in a mounted state. Has been. That is, the upper member 41 and the lower member 42 of the steam flow path forming member 40 are provided between the spout 9 and the handle 8 and of the overturn stop water valve Q (positioning rib 20b) and the through hole 20c in the lid body member 20. It is mounted and fixed by a plurality of screws 45 so as to be positioned at the top (see FIGS. 4 and 5).

  When the lower surface side of the upper member 41 and the upper surface side of the lower member 42 are brought into contact with each other and assembled, the upper member 41 and the lower member 42 are viewed in plan view from the rear side (the handle 8 side) in the front-rear direction (pour spout). 9) in order of opening, an opening forming cylinder part 40A in which an opening 60a described later is formed, a wide part 40B having a wider width in the left-right direction than the opening forming cylinder part 40A, and an opening forming cylinder part in the left-right direction. A cylinder portion 40C formed to the same extent as 40A is formed (see FIGS. 6 and 7).

  An opening 60a that opens toward the handle 8 side is formed on the rear side (handle 8 side) of the opening forming cylinder part 40A, and a detection steam described later formed inside the opening forming cylinder part 40A. It is comprised so that it may connect with the flow path 60, and the packing member 44 is externally fitted by 40 A of opening part formation cylinder parts in the state which seals this opening part 60a (refer FIG. 4).

The packing member 44 is made of silicone rubber, and one end side is externally fitted to the opening forming cylinder portion 40A, and the other end side is fitted to a packing insertion hole 20h formed in a state of penetrating the lid main body member 20. (See FIG. 4).
The temperature detector 43 is a known temperature sensor having a cylindrical portion that is inserted and mounted from the rear side in a cap (not shown) with a bottomed cylindrical flange, and the front side of the handle 8 at the lip 7. It is mounted and fixed in the temperature detection tool insertion hole 7h formed through (see FIG. 4).
Accordingly, when the upper member 41, the lower member 42, and the packing member 44 are mounted on the lid body member 20 of the lid body 6, when the upper opening 4 </ b> A of the container body 4 is closed by the lid body 6, the packing member 44 is opened. It will be in the state pressed by the peripheral part of the temperature detector insertion hole 7h of the edge part 7. FIG. Thereby, the temperature detector 43 is sealed with respect to the detection steam flow path 60 by the packing member 44 (see FIG. 4). Note that the temperature information detected by the temperature detector 43 is input to the control unit.

  As shown in FIGS. 5 to 12, the lower member 42 is a plate-like member that is long in the front-rear direction, and extends over the entire circumference other than the portion where the packing member 44 is mounted on the outer peripheral portion on the upper surface side of the plate-like member. A fitting groove portion 42a that is recessed downward from the upper surface is formed, and an opening portion 42b that opens toward the rear side in the front-rear direction (the handle 8 side) is formed at a portion where the packing member 44 is mounted.

  On the rear side (handle 8 side) of the plate-like member (bottom wall portion) of the lower member 42, the plate-like member is penetrated in the vertical direction, and the lower side of the portion and the plate-like member (falling stop water valve Q side). The first steam inlet 32A and the second steam inlet 32B that communicate with each other are formed as openings. The second steam inlet 32B and the first steam inlet 32A are arranged in this order from the front side to the rear side in the front-rear direction, and the flow path cross-sectional area A (opening area) of the first steam inlet 32A is the second steam. It is formed larger than the channel cross-sectional area B (opening area) of the inlet.

  At the end of the lower member 42 on the side of the spout 9, a pipe portion 42 e is formed to project downward from the lower surface of the plate-like member, and the portion surrounded by the fitting groove 42 a and the lower side of the plate-like member (pouring) The channel 31 side) is in communication. In addition, an opening 61a is formed in the lower end portion of the tube portion 42e so as to connect the space in the tube portion 42e and the extraction flow path 31 through the through hole 20c of the lid main body member 20.

  On the upper surface of the lower member 42, a concave groove 42c is formed between the first steam inlet 32A and the opening 42b. The groove 42c is recessed in a semicircular shape downward from the upper surface along the front-rear direction. Between the introduction port 32B and the pipe portion 42e, a concave groove 42d is formed that is recessed downward in a semicircular shape from the upper surface along the front-rear direction.

  On the upper surface of the lower member 42, there is a pair of obstacles from the upper surface toward the upper side at a position slightly deviated to the first steam inlet 32 </ b> A between the first steam inlet 32 </ b> A and the second steam inlet 32 </ b> B. A plate 42g is erected. Each baffle plate 42g is formed in a substantially rectangular flat plate shape, and is arranged in parallel in the left-right direction with the flat plate surface orthogonal to the front-rear direction. Accordingly, a main gap portion S1 having a predetermined gap is formed between the adjacent baffle plates 42g in the left-right direction. The main gap portion S1 is disposed so as to be positioned at a substantially central portion of the lower member 42 in the left-right direction when viewed in the front-rear direction.

On the upper surface of the lower member 42, in the front-rear direction, the baffle plate 42g side is located between the portion where the pair of baffle plates 42g is disposed and the first steam inlet 32A and at the peripheral edge of the first steam inlet 32A. Is provided with a frustoconical guide wall 42h having an opening 42m that opens to the opening 42b side. On the inner surface of the guide wall 42h on the first steam introduction port 32A side, a tapered surface 42i is formed that inclines toward the opening 42b from the upstream side toward the downstream side. The tapered surface 42i has a substantially semicircular cross section in plan view so as to follow the outline of the first steam inlet 32A on the baffle plate 42g side.
Further, the guide wall 42h is arranged so as to be positioned at a substantially central portion of the lower member 42 in the left-right direction when viewed in the front-rear direction.
Therefore, the main gap portion S1 and the guide wall 42h formed between adjacent the pair of baffle plates 42g in the cross-sectional view in the front-rear direction are substantially center portions of the lower member 42 (the lower member 42 and the upper member) in the left-right direction. When 42 is assembled, the guide wall 42h is formed larger than the width of the main gap portion S1 while being provided at a substantially central portion of a bulging portion 41f, which will be described later, and the guide wall 42h and the main gap are formed. It arrange | positions in the position which overlaps with part S1.

  The lower member 42 is fitted with positioning ribs 20b formed on the outer peripheral edge portions of the valve accommodating portions 32a and 32b in the overturn stop water valve Q in a state of being attached to the upper portion of the lid body member 20. An annular recess 42f that can be formed is formed as a depression, and when the lower member 42 is mounted on the upper portion of the lid body member 20, the annular recess 42f is easily fitted to the positioning rib 20b. ing. An annular sealing material (not shown) is provided on the outer peripheral side of the positioning rib 20b, and the space between the outer peripheral edge of the overturn stop valve Q and the lower surface of the lower member 42 is sealed.

  The upper member 41 is a plate-like member that is long in the front-rear direction, and is a protruding outer wall that protrudes downward from the lower surface over the entire circumference other than the portion where the packing member 44 is mounted on the outer peripheral portion on the lower surface side of the plate-like member 41a is formed, and an opening 41b that opens toward the rear side in the front-rear direction (the handle 8 side) is formed at a portion where the packing member 44 is mounted.

  On the rear side (the handle 8 side) of the plate-like member (ceiling wall) of the upper member 41, at least at a location facing the first steam inlet 32A and the second steam inlet 32B of the lower member 42 in the vertical direction. Is formed with a substantially box-like bulging portion 41f in which the lower surface of the plate-like member bulges upward. When the upper member 41 and the lower member 42 are combined, the bulging height of the bulging portion 41f can accommodate the pair of baffle plates 42g and the guide wall 42h of the lower member 42 in the bulging portion 41f. It is set to about the height.

  On the lower surface of the upper member 41, a concave groove 41c is formed between the handle 8 side of the bulging portion 41f and the opening 41b, and is recessed in a semicircular shape upward from the lower surface along the front-rear direction. A concave groove recessed in a semicircular shape from the lower surface along the front-rear direction between the spout 9 side of the outlet 41f and the portion facing the pipe part 42e of the lower member 42 in the vertical direction. 41d is formed.

Accordingly, the protruding outer wall 41a of the upper member 41 is fitted into the fitting groove portion 42a of the lower member 42 via a seal member (not shown), and the lower surface of the upper member 41 and the upper surface of the lower member 42 are in contact with each other. When assembled, the upper member 41 and the lower member 42 are in a sealed state at the fitted locations.
In this state, the opening 60a is formed in the opening forming cylinder 40A of the upper member 41 and the lower member 42 by combining the opening 41b of the upper member 41 and the opening 42b of the lower member 42. A part of the detection steam flow path 60 is formed by combining the concave groove 41 c of the member 41 and the concave groove 42 c of the lower member 42. That is, the packing member 44 is attached to the opening forming cylinder portion 40A so as to seal the opening 60a, so that the opening 60a, the groove 41c, the groove 42c, and the through hole of the packing member 44 are used for detection. A steam channel 60 is formed.
Further, in the cylindrical portion 40C of the upper member 41 and the lower member 42, the concave groove 41d of the upper member 41 and the concave groove 42d of the lower member 42 are combined to form a part of the outlet steam channel 61. . That is, the outlet steam flow path 61 is formed in the cylindrical portion 40C by the concave groove 41d, the concave groove 42d, and the pipe portion 42e of the lower member 42.

Further, in the wide portion 40B of the upper member 41 and the lower member 42, a first steam introduction port 32A, a guide wall 42h, a pair of baffle plates 42g, and a second steam introduction port 32B of the lower member 42 are provided along the front-rear direction. It is accommodated in the bulging part 41f of the upper member 41 in a state of being arranged in the order of description from the rear side to the front side.
In a state where the pair of baffle plates 42g are housed in the bulging portion 41f, each baffle plate 42g is added to the main gap portion S1 formed between the adjacent baffle plates 42g in a cross-sectional view in the front-rear direction. And the side surface side sub-gap portion S2 formed between the side surface forming the inner side of the bulging portion 41f of the upper member 41, and between each baffle plate 42g and the top surface forming the inner side. A top surface side sub-gap portion S3 is formed. Accordingly, the cross-sectional area (opening area) C of the location where the pair of baffle plates 42g accommodated in the bulging portion 41f is located in the cross-sectional view in the front-rear direction is the flow-path cross-sectional area (opening area) ( The opening area is smaller than D. That is, the channel cross-sectional area C including the main gap portion S1, the side-side sub-gap portion S2, and the top-side sub-gap portion S3 formed by providing the pair of baffle plates 42g in the bulging portion 41f is obtained. It functions as a narrow portion 70 having a channel cross-sectional area smaller than the channel cross-sectional area D of the bulging portion 41f. The channel cross-sectional area D of the bulging portion 41f and the channel cross-sectional area C of the narrow portion 70 are determined from the channel cross-sectional area A of the first steam outlet 32A and the channel cross-sectional area B of the second steam inlet 32B. Is also formed to be large.

  Accordingly, the inside of the bulging portion 41f sandwiches the narrow portion 70, the upstream space X into which the steam from the first steam inlet 32A is introduced, and the steam from the upstream space X is introduced through the narrow portion 70. Is formed so as to include a downstream space Y. The first steam inlet 32A is connected to the upstream space X, and the downstream space Y is finally spouted via the second steam inlet 32B and the outlet steam channel 61. 9 is connected to the downstream side of the valve mechanism V of the extraction flow path 31 communicating with 9 (steam discharge port). This outlet steam channel 61 is directly connected to the downstream space Y, is constituted by a concave groove 41d and a concave groove 42d, and is a horizontal channel (linearly extending to the front side (spout 9 side)). (Not shown) and a downward-facing flow passage (formed on the inner side of the pipe portion 42) that linearly extends downward from the downstream end (front side, spout 9 side) of the horizontal flow passage. (Not shown). Note that the flow passage cross-sectional area (not shown) where the bulging portion 41f communicates with the outlet steam flow passage 61 is configured to be smaller than the flow passage cross-sectional area D of the bulging portion 41f. . The opening 61a provided at the downstream end of the downward flow path and the pair of through holes 20c (steam outlet 32C) provided in the lid main body member 20 are formed in a disc shape of the valve body 25 of the valve mechanism V. In the state facing the main body 25b and the valve seat 20a in the up-down direction, an opening is made at a site on the upstream side (upper side) of the valve mechanism V in the extraction channel 31.

  In addition, a detection steam channel 60 including a temperature detector 43 that detects the temperature of the steam introduced from the first steam inlet 32A (detects the steam) is branched and connected to the upstream space X. The detection steam channel 60 is configured to extend linearly from the upstream space X of the bulging portion 41f to the rear side (the handle 8 side) along the front-rear direction. The rear end of the detection steam channel 60 in the front-rear direction is closed by the temperature detector 43.

  Therefore, when the steam flow path forming member 40 assembled in this way is mounted on the upper surface of the lid body member 20 of the lid body 6 and the lid body 6 is attached to the upper opening 4A of the container body 4, the steam flow path formation is performed. Inside the member 40, a part of the steam channel 32 (the bulging portion 41f and the outlet steam channel 61) in which only the first steam inlet 32A, the second steam inlet 32B, and the opening 61a are opened and the detection are detected. A steam flow path 60 is formed.

  Next, the state when steam flows through the steam flow path 32 by heating the hot water in the inner container 3 using the electric kettle configured as described above will be described.

When the user places the kettle body 2 on the power supply plate 1 and presses the operation switch 10A for boiling water of the operation unit 10 to heat the hot water in the inner container 3, the power feeding mechanism 1A through the power receiving mechanism 2A. Then, electric power is supplied to the electric heater 5, and the hot water in the inner container 3 is heated by the electric heater 5.
When steam is generated from the hot water in the inner container 3 with the heating, the steam rises sequentially and is introduced into the communication space 30 through a steam flow hole formed in the inner lid plate 22 so as to penetrate the steam flow path. 32 will flow. That is, the main part of the steam is the steam flow hole, the communication space 30, the overturn stop water valve Q, the first steam inlet 32A, the upstream space X in the bulging part 41f, and the narrow part 70 in the bulging part 41f. (Main gap portion S1, Side-side sub-gap portion S2, Top-side sub-gap portion S3), Downstream space Y in the bulging portion 41f, Deriving steam channel 61 (horizontal channel, downward channel) The steam outlet 32C (opening 61a, through-hole 20c) flows in this order, and flows to the downstream side of the valve mechanism V in the pouring channel 31, and can be discharged to the outside through the pouring port 9. In addition, a part of the steam includes a steam flow hole, a communication space 30, a tip-off stop water valve Q, a second steam inlet 32B, a downstream space Y in the bulging portion 41f, a discharge steam channel 61 (horizontal flow Channel, downward flow path), steam outlet 32C (opening 61a, through hole 20c) in this order, flow to the downstream side of the valve mechanism V in the discharge flow path 31, and externally through the spout 9 Can be discharged.

At this time, since the flow passage cross-sectional area D of the bulging portion 41f is formed larger than the flow passage cross-sectional area A of the first steam introduction port 32A, the bulging portion 41f passes through the first steam introduction port 32A. The pressure and temperature of the steam introduced into the upstream space X can be reduced, and condensation of the steam can be promoted.
Further, the narrow portion 70 provided in the bulging portion 41f is formed so as to have a channel cross-sectional area C smaller than the channel cross-sectional area D of the bulging portion 41f (upstream space X, downstream space Y). Therefore, the steam that has passed through the first steam inlet 32A and introduced into the upstream space X of the bulging portion 41f can be actively retained in the upstream space X. The temperature can be further reduced, and condensation of the vapor can be further promoted.
Further, the narrow portion 70 provided in the bulging portion 41f is formed so as to have a channel cross-sectional area C smaller than the channel cross-sectional area D of the bulging portion 41f (upstream space X, downstream space Y). Therefore, the pressure and temperature of the steam introduced from the upstream space X through the narrow portion 70 into the downstream space Y can be further reduced, and the condensation of the steam can be further promoted. it can. At this time, since it is not necessary to form a steam outlet on the upper surface of the lid body 6, the steam is not exhausted from the upper surface of the lid body 6, and the possibility that a child or the like touches the steam can be reduced. .

  Since the first steam inlet 32A having a channel cross-sectional area A larger than the channel cross-sectional area B of the second steam inlet 32B is connected to the upstream space X, the first steam inlet 32A passes through the bulging portion 41f. When most of the steam passes through the first steam inlet 32A and is introduced into the upstream space X, when it stays in the upstream space X, the narrow portion 70 is further removed from the upstream space X. When passing through and introduced into the downstream space Y, the pressure and temperature decrease and condensation is promoted, so the amount of steam discharged from the spout 9 can be reduced. On the other hand, since the second steam inlet 32B having a small channel cross-sectional area is connected to the downstream space Y, a relatively small portion of the steam passing through the bulging portion 41f is the narrow portion described above. Although it does not pass through 70, it passes through the second steam inlet 32 </ b> B and enters the downstream space Y of the bulging portion 41 f having a channel cross-sectional area D larger than the channel cross-sectional area B of the second steam inlet 32 </ b> B. When introduced, since the pressure and temperature are reduced and condensation is promoted, the amount of steam discharged from the spout 9 can be reduced.

Further, as the steam that has passed through the first steam introduction port 32A and is introduced into the upstream space X stays in the upstream space X, it actively stays in the detection steam flow path 60. Thus, the temperature of the staying steam can be detected early and stably by the temperature detector 43 provided in the detection steam channel 60, and the temperature detection accuracy can be improved reliably.
At this time, the steam introduced into the upstream space X through the first steam introduction port 32A moves from the upstream side toward the downstream side as a portion on the narrow portion 70 side in the peripheral portion of the first steam introduction port 32A. Along the tapered surface 42i formed on the surrounding frusto-conical guide wall 42h, the flow toward the narrow portion 70 is prevented and the guide is further appropriately guided to the detection steam channel 60 side. Through the opening 42m formed on the steam channel 60 side, it can be made to flow more reliably toward the temperature detector 43 of the detection steam channel 60, and the temperature of the steam in the temperature detector 43 can be controlled. The detection accuracy can be further improved while further speeding up the detection.

In particular, the steam introduced into the upstream space X from the first steam inlet 32A is first a frustoconical guide wall erected at a location located between the narrow portion 70 and the first steam inlet 32A. It is guided toward the detection steam channel 60 by the tapered surface 42 i of 42 h, flows toward the temperature detector 43, and stays in the detection steam channel 60 and the upstream space X. Thereafter, the steam flows through the upstream space X from the upstream side to the downstream side, that is, through the induction wall 42h side and the narrow portion 70 side opposite to the detection steam flow path 60 side.
At this time, the guide wall 42h and the main gap portion S1 (the main gap portion S1 formed between the pair of baffle plates 42g (a part of the narrow portion 70)) are the left-right direction in a cross-sectional view in the front-rear direction view. Since the steam is provided in the central portion of the bulging portion 41f, the steam meanders in the upstream space X so as to pass through the both sides of the guiding wall 42h while avoiding the guiding wall 42h in the central portion. Then, the air flows in a meandering state so as to pass through the main gap portion S1 at the center while avoiding the pair of baffle plates 42g on both sides, and is introduced into the downstream space Y. For this reason, the steam flowing through the upstream space X is reduced in pressure and temperature due to meandering or colliding with the guide wall 42h or the baffle plate 42g, and condensation is promoted. The amount of steam discharged can be further reduced.

Thereafter, the steam that is not condensed in the bulging portion 41f is introduced into the outlet steam passage 61 from the downstream space Y of the bulging portion 41f. Since the flow path cross-sectional area is smaller than the flow path cross-sectional area D of the downstream space Y of the bulging portion 41f, the flow of steam into the derivation steam flow path 61 is hindered and swelled. Steam stays in the downstream space Y of the portion 41f. Thereby, the fall of the temperature of a vapor | steam and promotion of dew condensation can be aimed at.
Further, the steam introduced into the outlet steam passage 61 and flowing through the horizontal passage of the outlet steam passage 61 passes through the steam outlet 32C formed at the downstream end of the downward passage. However, since the steam is forced to change direction so as to flow along the downward direction when introduced into the downward flow path, the steam is generated in the downward flow path. It will stay near the entrance. That is, when steam is introduced into the downward flow path, the steam is forced to change in the downward direction opposite to the direction in which the relatively high-temperature steam is going to rise (upward). Can be satisfactorily reduced, the temperature of the steam can be lowered, condensation can be promoted, and the amount of steam can be reduced.

  And the vapor | steam generate | occur | produced in the inner container 3 is derived | led-out to the downstream of the valve mechanism V of the extraction flow path 31 in the state which reduced the quantity of the vapor | steam as mentioned above, and it passes outside via the spout 9 Since it discharges | emits, the vapor | steam discharged | emitted from the spout 9 can fully be reduced.

  Thereafter, in the detection steam flow path 60, when the temperature detector 43 detects the temperature of the predetermined steam, the control unit determines that the hot water in the inner container 3 has reached the predetermined temperature. Shut off the power supply.

  When the hot water in the inner container 3 is discharged to the outside through the spout 9, the user operates the valve operating tool 26 while holding the handle 8 and is provided on the opposite side to the handle 8. By tilting the pouring spout 9 side downward, the hot water in the inner container 3 can flow from the pouring spout 9 to the outside.

  Therefore, the first flow inlet 32A and the bulging portion 41f, particularly the narrow portion 70 in the bulging portion 41f, are provided in the vapor flow channel 32, so that the passage through the vapor flow channel 32 can be achieved. It was possible to provide an electric kettle that can reliably reduce the pressure and temperature of flowing steam and promote condensation, and can effectively reduce the amount of steam discharged from the spout 9.

[Another embodiment]
(A) In the above embodiment, a part of the steam channel 32 is constituted by the steam channel forming member 40 including the upper member 41, the lower member 42, the temperature detector 43, and the packing member 44, and the upper member 41 and Although the lower member 42 is configured by a plate-like member that is long in the front-rear direction of the container body 4, other configurations can be adopted as long as a part of the steam channel 32 can be configured.
For example, as shown in FIG. 13, the upper member 41 and the lower member 42 are configured by plate-like members that are long in the left-right direction of the container body 4, and a bulging portion 41 f that bulges upward is formed on the upper member 41. The second member 42 has a channel cross-sectional area smaller than the pair of baffle plates 42g projecting upward from the upper surface of the lower member 42, the first steam inlet 32A and the first steam inlet 32A. A steam inlet 32B is formed. Then, by assembling the upper member 41 and the lower member 42, the flow passage cross-sectional area of the main gap portion S <b> 1 formed by providing the pair of baffle plates 42 g in the bulging portion 41 f is changed to the bulging portion 41 f. It can be made to function as the narrow part 70 which becomes a channel cross-sectional area smaller than a channel cross-sectional area. Therefore, the inside of the bulging portion 41f is partitioned into an upstream space X and a downstream space Y across the narrow portion 70. The first steam inlet 32A and the detection steam channel 60 are connected to the upstream space X, and finally the spout is connected to the downstream space Y via the second steam inlet 32B and the outlet steam channel. It can comprise so that the downstream of the valve mechanism V of the extraction flow path connected to (steam discharge port) may be connected.
Further, for example, the upper member 41 and the lower member 42 can be configured as an integrated body, or the configurations of the upper member 41 and the lower member 42 can be further divided.
Furthermore, for example, the first steam introduction port 32A and the second steam introduction port 32B may be connected to the upstream space X defined by the narrow portion 70 provided in the bulging portion 41f. The space X may be configured to further communicate with one or more other steam inlets of the first steam inlet 32A and the second steam inlet 32B. In this case, the flow path cross-sectional areas of the respective steam inlets may be different or the same.

(B) In the above-described embodiment, the narrow portion 70 including the flow path cross-sectional area C including the main gap portion S1, the side-side sub-gap portion S2, and the top-side sub-gap portion S3 described above is a cross-sectional view in the left-right direction. However, the present invention is not limited to this, and the front side (pour spout 9 side) or the rear side (handle 8 side, detection steam channel 60 side) in the bulge part 41f is not limited to this. It is good also as a structure provided in the location biased to. If the narrow portion 70 is disposed at a position biased toward the detection steam flow path 60 in the bulging portion 41f, the steam introduced from the first steam introduction port 32A is converted into the upstream space X and the detection. The temperature detector 43 is easily retained in the steam channel 60 at an early stage, and the temperature detector 43 is not easily affected by fluctuations in the flow state of the steam (steam flow rate, flow velocity, etc.). The accuracy can be further improved while speeding up.
Moreover, in the said embodiment, the narrow part 70 which consists of the flow-path cross-sectional area C which added the above-mentioned main gap | interval part S1, the side surface side subgap part S2, and the top | upper surface side subgap part S3 is a cross-sectional view in the front-back direction. However, the present invention is not limited to this, and the structure may be provided at a location biased to the left or right side in the bulging portion 41f.

(C) In the above embodiment, the channel cross-sectional area C including the main gap portion S1, the side-side sub-gap portion S2, and the top-side sub-gap portion S3 is determined from the channel cross-sectional area D of the bulging portion 41f. Is configured so as to function as a narrow portion 70 having a small channel cross-sectional area, but a configuration capable of configuring the narrow portion 70 having a channel cross-sectional area C smaller than the channel cross-sectional area D of the bulging portion 41f. If so, other configurations can be employed.
For example, one or three or more baffle plates may be installed, or a member having another shape may be provided instead of a plate-like member. Moreover, it is good also as a structure which serves as the narrow part 70 for the guide wall 42h of the said embodiment.
For example, even when the pair of baffle plates 42g are provided in the bulging portion 41f, one or more of the main gap portion S1, the side surface side auxiliary gap portion S2, and the top surface side auxiliary gap portion S3 are formed. An appropriate gap may be provided between the inner surface of the bulging portion 41f and the baffle plate 42g.

(D) In the above embodiment, the guide wall 42h is positioned between the location where the pair of baffle plates 42g are disposed and the first steam inlet 32A in a plan view, and the peripheral portion of the first steam inlet 32A. A portion of the baffle plate 42g side in a substantially semicircular shape is formed into a truncated cone shape having an opening opening on the opening 42b side, and is substantially in the center of the bulging portion 41f in a cross-sectional view in the front-rear direction. However, if the steam introduced into the upstream space X from the first steam inlet 32A can be satisfactorily guided to the detection steam channel 60 side, the guide wall 42h is placed in the upstream space X. Can be provided at an appropriate location between the narrow portion 70 and the first steam introduction port 32A, and in the upstream space X, the detection steam channel 60 side as it goes from the upstream side to the downstream side With a tapered surface 42i inclined to The shape of the 42h, can be appropriately changed shape. Also, the number of guide walls 42h can be increased or decreased as appropriate, and can be omitted.

(E) In the above-described embodiment, the outlet steam passage 61 that is downstream of the bulging portion 41 f is connected to the downstream side of the valve mechanism V in the extraction passage 31, and steam generated in the inner container 1. Is discharged to the outside through the spout 9 (an example of a steam discharge port) of the pouring channel 31, but the outlet steam channel 61 is not connected to the pouring channel 31, but the lid It is good also as a structure connected to the vapor | steam exhaust port formed in the upper surface of the body 6 and discharging | emitting the said vapor | steam outside via a vapor | steam exhaust port.

(F) In the above embodiment, an explanation has been given of a double-structured electric kettle in which an inner container (an example of a storage unit) 3 capable of storing a liquid is provided in a container body 4, but the inner container 3 is placed in the container body 4. A single-structure electric kettle that is not provided, that is, a configuration in which liquid is directly stored in the container body 4 (an example of a storage unit) may be used.

(G) In the said embodiment, although this invention was applied to the electric kettle (an example of a water heating container), if it is a water heating container, another apparatus may be sufficient, for example, an electric pot may be sufficient. .

  Note that the configurations disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in the other embodiments as long as no contradiction arises. The embodiments disclosed in this specification are exemplifications, and the embodiments of the present invention are not limited thereto, and can be appropriately modified without departing from the object of the present invention.

  As described above, it is possible to provide a water heating container that can effectively reduce the amount of steam discharged from the steam outlet by simple and inexpensive improvement.

3 Inner container (storage part)
4 Container body 4A Upper opening 5 Electric heater (heating mechanism)
6 Lid 9 Spout (steam outlet)
31 Pouring channel 32 Steam channel 32A First steam inlet (steam inlet)
32B 2nd steam inlet (steam inlet)
41f bulging part 42g baffle plate 42h guide wall 42i tapered surface 42m opening 43 temperature detector (detecting part)
60 Detection steam channel 61 Derivation steam channel 70 Narrow part A Channel cross-sectional area B of the first steam introduction port Channel cross-sectional area C of the second steam introduction port Narrow channel cross-sectional area D of the bulging part Cross-sectional area of flow path V Valve mechanism Q Fall stop water valve X Upstream space (bulging part)
Y Downstream space (bulging part)
S1 Main gap (narrow part)
S2 Side side sub-gap part (narrow part)
S3 Top side sub-gap part (narrow part)

Claims (7)

A container body having an opening on the upper side and having a reservoir inside, a heating mechanism that heats water in the reservoir, a lid that can open and close the upper opening of the container body, and the reservoir and the outside communicate with each other. And an outlet passage for allowing water in the reservoir to flow to the outside via a spout, and the reservoir to the outside, and the steam in the reservoir to flow to the outside via a steam outlet. A water heating vessel provided with a steam flow path,
The steam flow path is formed with a steam introduction port communicating with the storage section, and a swell formed in a flow passage cross-sectional area larger than the flow passage cross-sectional area of the steam introduction port, by introducing steam from the steam introduction port And the steam discharge port for discharging the steam from the bulging part to the outside,
In the bulging portion, there is provided a narrow portion having a channel cross-sectional area smaller than the channel cross-sectional area of the bulging portion, and the inside of the bulging portion sandwiches the narrow portion and the steam inlet port The first steam inlet is connected to the upstream space and the downstream space is connected to the steam outlet, and the compartment is formed .
The steam inlet includes the first steam inlet and the second steam inlet, and the flow path cross-sectional area of the first steam inlet is larger than the flow path cross-sectional area of the second steam inlet. A water heating vessel formed in a cross-sectional area and having the second steam inlet communicated with the downstream space . In the upstream space, a detection steam flow path having a detection unit for detecting the temperature of the steam introduced from the first steam introduction port is branched and connected,
In the upstream space, a guide wall provided with a tapered surface that is inclined toward the detection steam flow path side from the upstream side toward the downstream side at a position located between the narrow portion and the first steam introduction port. Was established,
2. The water heating container according to claim 1, wherein the water introduced into the upstream space from the first steam inlet is guided to the detection steam flow path by the guide wall. 3. The guide wall is formed in a truncated cone shape that surrounds the portion on the narrow portion side in the peripheral portion of the first steam inlet and has an opening that opens to the detection steam channel side. 2. The water heating container according to 2. The narrow portion is configured to have a channel cross-sectional area smaller than the channel cross-sectional area of the bulging portion by providing a pair of baffle plates standing from the inner surface of the bulging portion, and at least the first The main part of the steam introduced into the upstream space from one steam introduction port is connected to the downstream side via a main gap part constituting at least a part of the narrow part formed between the pair of baffle plates. The water heating container according to claim 2 or 3 , wherein the water heating container is configured to flow through a space. In cross-sectional view, the main gap portion and the guide wall are provided at a substantially central portion of the bulging portion, and the width of the guide wall is formed larger than the width of the main gap portion, and the guide wall and the guide wall The water heating container of Claim 4 arrange | positioned in the position which overlaps with a main clearance gap part. A valve mechanism that can freely open and close the extraction channel is provided in the extraction channel;
A downstream side of the bulging portion of the steam channel is communicated with a downstream side of the valve mechanism in the pouring channel so that the steam in the bulging portion is discharged from the spout as the steam discharge port. The water heating container as described in any one of Claims 1-5 comprised by these. In the upstream space, a detection steam flow path having a detection part for detecting the temperature of the steam introduced from the first steam inlet is branched and connected, and the narrow part is detected in the bulge part. The water heating container as described in any one of Claims 1-6 arrange | positioned in the position biased to the steam flow path side for water.

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