JPH0646419Y2 - Boiling type electric hot water storage container - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiling type electric hot water storage container which can appropriately bring a content liquid to a predetermined boiling state, and is applied to an electric pot or the like.

[0002]

2. Description of the Related Art As hot water reaching the boiling point is required for making coffee or black tea, a boiling type electric hot water storage container for heating a content liquid to a predetermined boiling state has been used. In this type of hot water storage container, a large amount of steam is generated due to boiling of the content liquid, and various problems such as the risk of unspecified high temperature steam jetting and the resulting thermal deterioration of each part occur.

[0003]

[Problems to be solved by the invention] By the way, even in a pressurized pouring type electric hot water storage container in which the content liquid is poured out by a bellows pump that sends pressurized air into the inner container by pressing the pressing plate provided on the lid. The boiling type is desired. However, since the bellows pump is made of synthetic resin and communicates with the inside of the vessel through the air supply path, a large amount of steam that has entered the bellows pump enters the bellows pump, causing thermal degradation, and vapor inside the vessel lid as well. Are diffused, and heat is deteriorated in the lid of the vessel due to the vapor diffusion, which is not preferable.

Therefore, in the present invention, attention is paid to the pressing operation of the pressing plate when the content liquid is poured out, and the air supply passage and the vapor discharge passage are selectively opened and closed by a simple improvement. In particular, it is an object of the present invention to provide a device which can prevent thermal deterioration due to high temperature steam inside the bellows pump.

[0005]

[Means for Solving the Problems] In order to solve the problems described above, the present invention provides a heating means for heating the content liquid in an inner container having a wide opening to a boiling state, and an external means for heating the content liquid. A pouring path for pouring into the container, a pressurizing pump for pressurizing the content liquid and pouring out through the pouring path, and a vessel lid for closing the opening of the inner container. Having a built-in lid and a heat shield made of metal that closes the opening of the inner container, an air supply path for feeding the pressurized air from the pressure pump into the container and vapor generated from the content liquid to the outside. A steam discharge path for escaping is provided, and the steam discharge path is provided between the lid body and the heat shield so as to reach the outside from the central portion of the body lid to the side portion of the body lid. The pressure pump is a bellows pump that sends pressurized air into the inner container by pressing the pressing plate on the lid. The air supply passage is opened and the vapor discharge passage is closed and the vapor discharge passage is opened and the air supply passage is closed. It is characterized by having a valve.

[0006]

In the above construction of the present invention, when the content liquid is not poured out, the pressure plate of the bellows pump is not operated, so that the vapor discharge passage is opened and the air supply passage is closed, so that the content liquid boils. Even if steam is generated, it is possible to prevent the steam from entering the bellows pump through the air supply passage.

Particularly, since the steam discharge passage is provided between the lid and the heat shield plate, it is possible to prevent the steam from being dissipated into the bellows pump and prevent the heat deterioration in the bellows pump due to the steam. Along with this, a vapor discharge path is provided so that it extends from the center of the vessel lid to the side of the vessel lid and faces the outside, and since the passage for discharging vapor is a long path form, a large amount is generated in the boiling state. The high-temperature steam that keeps high temperature is prevented from being vigorously discharged to the outside, preventing the diffusion of the steam to the outside of the vapor discharge path inside the vessel lid, and the diffusion of this vapor causes the inside of the vessel lid to diffuse. It is possible to prevent thermal deterioration.

Further, since the opening of the wide inner container is closed by the heat shield made of metal, the inside of the lid is not exposed to the high temperature steam due to boiling, and is a lid made of synthetic resin, for example. However, heat deterioration can be prevented for a long period of time in combination with the structure of the vapor discharge path.

[0009]

EXAMPLE Referring to the example shown in FIG. 1, a liquid container body 3 is formed by accommodating an inner container 2 made of aluminum and having a wide opening in a steel case 1.
It has a lid 22 that closes the opening of the inner container 2. The outer case 1 is equipped with a synthetic resin bottom ring 4 at the lower end and a synthetic resin shoulder ring 5 at the upper end, and receives the opening flange of the inner container 2 at the inner peripheral edge of the shoulder ring 5, and the bottom part of the inner container 2 and the bottom ring 4 are attached. Each member is integrally assembled by connecting the steel plate bottom cover 6 applied to the above with the screw 8 through the connecting frame metal fitting 7 attached to the lower surface of the bottom of the inner container 2 by spot welding. . Boiling around the lower part of the inner container 2, and each heater 9 is wrapped around,
An electric control unit 10 for controlling energization of the heater 9 according to the temperature of the content liquid is provided on the lower surface of the bottom. Exterior case 1
A power supply connection port 11 for connecting to an external power supply is provided on the outer periphery of the lower end of the.

The opening of the inner container 2 is sealed and the bottom plate 34 of the lid 22 is closed.
A heat shield plate 14 for protecting the inner container 2 from the hot water in the inner container 2 is provided to form a lid of the body together with the lid 22.

An air supply passage 12 for feeding pressurized air into the inner container 2 is provided in the central portion of the lid 22 between the bottom plate 34 of the lid 22 forming the inside of the lid and the heat shield plate 14. Has been.

The heat shield plate 14 is made of a metal made of a stainless steel plate which is seated in the opening of the inner container 2 by a seal packing 15 which is mounted on the outer periphery, and forms a part of the air supply passage 12. An air supply pipe member 16 is mounted on the central upper surface. Further, the air supply pipe member 16 is provided with a pouring path 13 for pouring out the content liquid to the outside, and the pouring path 13 has a stainless steel pipe in a portion that hangs inside the inner container 2 and a heat shield plate that forms the inside of the lid. The portion provided between 14 and the bottom plate 34 of the lid body 22 is a synthetic resin pipe, and these are communicated by a communication passage 17 in the lid, and a water stop valve 18 at the time of fall is provided in the middle of the communication passage 17. Form a series of pouring paths.

A pipe cover 19 is provided on the upper front surface of the container body 3 with its seat plate 20 sandwiched between the shoulder ring 5 and the outer case 1. In the pipe cover 19, a downward guide path 21 that receives the liquid content poured from the pouring path 13 and guides it downward is formed vertically by the combined structure of the fixed tube 21a and the vertical moving tube 21b, and moves vertically. The height of the lower end spout 21c can be adjusted by guiding the vertical movement of the pipe 21b. Reference numeral 21d is an external operation portion of the vertical moving pipe 21a and is projected from the pipe cover 19.

On the upper end of the container body 3, the lid body 22 is covered so as to cover the portion including the protruding portion of the pipe cover 19,
A shaft 23 is pivotally supported on the rear portion of the shoulder ring 5 so as to be freely opened and closed. The lid 22 has a manual bellows pump, which is a pressurizing pump.
25 is built in, and pressurized air can be sent into the inner container 2 from the air supply passage 12 via the seal packing mouse 24 by a pressing operation by the pressing plate 26 exposed on the top surface.

A locking slider 28 that engages with the locking portion 27 of the shoulder ring 5 at the free end of the lid body 22 to keep the body lid closed is a spring.
It is provided so as to keep the locking position by 29.

The air supply pipe member 16 on the side of the heat shield plate 14 which forms the air supply passage 12 and communicates with the inside of the inner container 2 is also used as the vapor discharge passage 32. The vapor discharge passage 32 is a tubular member made of synthetic resin. Formed by
It is provided so as to avoid the manual pump 25 and reach the side of the body lid from the center of the body lid to face the outside of the body. One end of the air supply pipe member 16 forms the center of the body lid. The inner container 2 is exposed to the inside, and the other end is exposed to the outside through a discharge port 32a reaching the side of the body lid.

The vapor discharge port 32a of the vapor discharge path 32 exposed to the outside of the body communicates with the cover member 33 which also functions as a vapor discharge path formed in the lid pivotal support 5a projecting to the rear of the shoulder ring 5. ing. The cover member 33 further guides the vapor discharged from the vapor discharge path 32 downward along the outer surface of the container body 3 and discharges the vapor downward from the discharge port 33a at the lower end.

A lid body at the rear of the outer case 1 in the container body 3
The vapor sensor 30 is provided below the pivot portion of 22, and the detection end of the vapor sensor 30 is projected to the outside of the outer case 1 to face the inside of the cover member 33 that covers the vapor from the vapor discharge path 32. As a result, the sensor 30 can detect the temperature of steam that has not lost much heat when it is generated, which is not yet in contact with the outside air, and is also not affected by the external temperature. Can be performed accurately and responsively.

The electric control unit 10 detects the temperature of the liquid content and controls the energization of the heater 9 so as to keep the liquid content at the set temperature. In addition, the electric switch 10 causes the liquid content liquid to boil by pressing the boiling switch button 31. When the heater 9 is energized and the vapor sensor 30 provided on the container body 3 side detects a predetermined boiling state according to the vapor temperature generated from the content liquid,
A relay is provided for stopping the energization of the heater 9 and returning it to the normal heat retention energization state. Also, a timer for setting the energization start time is provided as necessary.

The bottom plate 34 of the lid 22 has a discharge port for the pump 25.
A discharge passage 35 having a mouse 24 for discharging air from 36 is formed, and the discharge passage 35 is connected to the air supply passage 12 via the mouse 24. In this discharge path 35, the discharge path 35
A vapor discharge communication passage having a communication port 37 opening upward inside
39 are provided.

The vapor discharge communication passage 39 is provided with the vapor discharge passage 32 provided in the air supply pipe member 16 via the seal packing mouth 38.
It is connected to the opening.

A switching valve 40, which moves vertically between the discharge port 36 and the communication port 37 and selectively closes both ports 36, 37, is provided on the lid body 22 with a spring 41 so that the discharge port 36 is always closed. It is urged.

As a result, the air supply passage 12 is normally pumped by the pump 25.
The communication with the
It communicates with 32, the vapor generated from the content liquid is discharged to the outside, and the abnormal pressure generation of the container body 3 is avoided.

Intake valve 42 mounted on upper plate 41 of pump 25
And the valve switching rod 44, which is kept in the downward position by the spring 43.
Is held so that it can move up and down, and is pushed in the initial stage of the pushing operation on the pump 25 by the pushing plate 26 to close the intake port 45.
By this operation, the switching valve 40 is pushed down to switch the closed state of the discharge port 36 to the closed state of the communication port 37. As a result, when the pump 25 is operated to discharge the content liquid, the air supply passage 12 is disconnected from the vapor discharge passage 32 and communicates only with the pump 25. Output is achieved without air leakage.

In the second embodiment shown in FIG. 2, the lower end portion is fixedly attached 51 to the outer case 1 and the upper end portion is locked 52 at the rear lower edge of the shoulder ring 5, and the shoulder ring 5 is formed. The dew receiving container 54 is elastically attached by means of the lid pivot support 5a. A vapor sensor is placed in the dew receptor 54 on the lid pivotal support 5a.
A partition wall 55 is formed so as to hang down to a portion facing the protruding portion of 30. The partition wall 55 allows the steam discharged from the steam discharge path 32 to pass from the installation portion of the steam sensor 30 to the steam discharge port 32a and the dew receiver 54 outside the container body The U-shaped second vapor that is exposed to the inside and escapes from the dew receiver 54 to the second vapor discharge port 56 that is exposed to the outside of the other container body that is opened rearward to the lid pivotal support 5a. Discharge path
57 forms a series of vapor discharge passages so that dew water can be easily received by the dew receiver 54, and the power of the vapor discharge to the outside after the temperature is detected by the steam sensor 30 which faces the second vapor discharge passage 57. The temperature is lowered and the risk of vapor emission is mitigated.

The third embodiment shown in FIGS. 3 to 5 has a large downward opening 33a for the cover member 33 of the vapor discharge port 32a formed in the lid pivot support 5a of the shoulder ring 5. The second vapor discharge port 56 that is exposed to the outside of the container is laterally opened, and the dew receiver 54 is elastically fitted to the outer periphery of the opening 33a.
It is detachably attached by doing 1. In addition, the cover member 33 covers the second vapor discharge passage 57, which has a large area for communicating with the vapor discharge passage 32 and forms a series of vapor discharge passages.
In the cover member, a steam receiving port 62 for receiving the steam discharged from the steam discharging passage 32 and guiding it sideways in the cover member 33 is mounted by force fitting 63 from the upper side. The front wall 62a of the step fits in the cover member 33, and the fit of both is formed between the side parts so as to vertically face each other.
The connection portion of the steam sensor 30 provided so as to face the cover member 33 between 62b and 33c is sandwiched and held. The steam sensor 30 is held in the middle of the cover member 33 so as to be positioned near the sideways steam discharging portion of the receiving port 62, but is also sandwiched and held together with the moisture-proof sheet 64 covering the steam sensor 30 to discharge the steam sensor 30. The moisture-proof sheet 64 also serves as a seal for the penetrating portion which is exposed in the middle of the cover member 33 forming the path.

In the fourth embodiment shown in FIG. 6, the steam discharged from the steam discharge path 32 is discharged into a cover member 33 which covers the steam discharge port 32a, and this cover member 33 is used as another second steam. A series of vapor discharge passages is formed as the discharge passage 57, and the second steam discharge port is provided on the cover member 33 and faces the outside of the container body.
The steam is discharged from 56 to the outside. A dew receiver 54 is provided below the cover member 33 that forms a second vapor discharge passage 57 that forms a series of vapor discharge passages with the vapor discharge passage 32, and is provided in the cover member 33 near the opening 32a of the vapor discharge passage 32. A sensor 64 made of a shape memory alloy is provided, and the switch 65 is operated via a seal cover 66 provided inside the shoulder ring 5 due to a change in shape when the sensor 64 comes into contact with steam and reaches a predetermined temperature. I am trying to do it.

[0028]

With the above configuration of the present invention, when the content liquid is not poured out, the pressure plate of the bellows pump is not operated, so the vapor discharge passage is opened and the air supply passage is closed. Even if the steam is boiling and generates steam, it is possible to prevent the steam from entering the bellows pump through the air supply passage.

Particularly, since the steam discharge passage is provided between the lid and the heat shield plate, it is possible to prevent the steam from being diffused into the bellows pump and prevent the heat deterioration in the bellows pump due to the steam. Along with that, the vapor discharge path is provided so as to reach the outside from the center of the body lid to the side of the body lid.
Since the passage for discharging steam is long, it prevents the high-temperature steam generated in large quantities in the boiling state from being discharged to the outside while keeping it at high temperature and vigorously discharging it to the outside of the steam discharge passage inside the lid. It is possible to prevent the diffusion of steam and prevent thermal deterioration in the vessel lid due to the diffusion of the steam.

Further, since the opening of the wide inner container is closed by the heat shield plate made of metal, the inside of the lid is not exposed to high temperature steam due to boiling, and is a lid made of synthetic resin, for example. However, heat deterioration can be prevented for a long period of time in combination with the structure of the vapor discharge path.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment in which a part thereof is left in section.

FIG. 2 is a partial sectional view of a second embodiment.

FIG. 3 is a partial sectional view of a third embodiment.

FIG. 4 is a cross-sectional view of the same portion with the cross-sectional position changed.

FIG. 5 is a cross-sectional view of the same portion with different angles.

FIG. 6 is a partial sectional view of a fourth embodiment.

[Explanation of symbols]

 1 …… Exterior case (3 …… container body) 2 …… Inner container (3 …… container body) 9 …… Heater 12 …… Air supply passage 14 …… Heat shield plate (body lid) 22 …… Lid body (Body lid) 25 …… Bellows pump 26 …… Pressing plate 32 …… Vapor discharge path 57 …… Second steam discharge path

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-55-72756 (JP, A) JP-A-58-27531 (JP, A) JP-A-60-163619 (JP, A) Actual development Sho-56- 76948 (JP, U) Actual Open Sho 58-106034 (JP, U) Actual Open Sho 60-129235 (JP, U) Actual Open Sho 57-191227 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A heating means for heating the content liquid in an inner container having a wide opening to a boiling state, a pouring path for pouring out the content liquid to the outside, and a pressurization of the content liquid for pouring through the pouring path. And a container lid for closing the opening of the inner container. The container lid has a lid body containing the pressurizing pump and a heat shield plate made of metal for closing the opening of the inner container. Then, an air supply path for sending pressurized air from the pressure pump into the inner container and a steam discharge path for escaping steam generated from the content liquid to the outside are respectively provided, and the steam discharge path is provided with the lid body. The pressurizing pump is installed in the inner container by pressing a pressing plate provided on the lid so as to reach the outside from the center of the lid to the outside of the lid with the heat shield plate. It is composed of a bellows pump that sends pressurized air, and the air supply is performed on the vessel lid in conjunction with the pressing operation of the pressing plate. Boiling electric hot water storage vessel, characterized in that a closing valve of the air supply passage is opened the steam discharge channel in conjunction with the operation cancel closing said vapor discharge passage open.