JP2755179B2 - Electric hot water storage container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hot water storage container, and more particularly, to an inner container for containing a liquid content, and the inner container is removably received, and is received and heated on a hot plate provided at the bottom. TECHNICAL FIELD The present invention relates to an electric hot water storage container provided with a container.

[0002]

2. Description of the Related Art An electric hot water storage container of this type is configured to receive heat from a hot plate inside a container when the container is received in the container, and to boil or keep the temperature of the content liquid. Of course, you can take out the inner container as needed, wash it alone, or discharge the remaining amount of the content liquid,
It is possible to carry the contents liquid in a kitchen or the like, carry it to a position of the body away from the kitchen, and heat it by storing it in the body, which is convenient for use and various kinds of handling.

[0003]

However, while there is an advantage that the inner container can be taken in and out, foreign matter is sometimes caught between the inner container and the hot platen. This is caused by the fact that foreign substances adhering to the inside of the container or foreign substances from the outside of the container drop on the hot platen while the inner container is being removed.

[0004] When foreign matter is caught, a gap is formed between the bottom of the inner container and the hot plate, which hinders heat conduction from the hot plate to the internal solution, and slows the temperature rise of the content solution. The hot platen may overheat and melt.

[0005] In addition, in order to extract and handle the inner container,
It is easy to be deformed by the fact that the bottom hits the other part, and the deformation tends to cause problems such as deterioration of the degree of adhesion to the hot platen.

Further, in order to reduce the bulk of the container as much as possible, the size of the inner container with respect to the container is limited to a small size. For this reason, the contact area between the heating plate at the bottom of the container and the inner container also becomes smaller, and when the capacity of the heater is increased, the amount of heat transferred per unit area of the heating plate increases and the efficiency of heat transfer to the inner container decreases. In some cases, the heating plate is overheated and easily melted, and the heating efficiency is reduced. In order to avoid this, the heater capacity is kept low, which is the limit of the early startup of the water heater.

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems, to improve the contact structure between the hot platen and the bottom of the inner container, so that there is no harm even if foreign matter is caught between the two. It is an object of the present invention to provide an electric hot water storage container having a high strength at the bottom of the vessel and good durability.

[0008]

In order to achieve the above object, the electric hot water storage container of the present invention has an inner container for containing a liquid content, and the inner container is removably received and has a bottom portion. and a device body that受載heated on a hot plate, an uneven receiving surface is formed on the upper surface of the heating plate, to form an uneven contact surface facing against this irregularity receiving surface on the bottom of the inner container, these A gap is formed between the bottom surface of the upward concave portion of the uneven receiving surface and the downward convex portion of the uneven contact surface, and the temperature sensor for detecting the temperature of the content liquid is located above the uppermost surface of the uneven receiving surface of the hot platen. The main feature is that it is in contact with the inner container.

It is preferable that the concavities and convexities of the concave-convex receiving surface and the concave-convex contact surface are concentrically arranged annular shapes, and that each of the convex portions on the concentric annular line of the concave-convex receiving surface is divided at a common radiation position. is there.

[0010]

In the above-described structure of the electric hot water storage container according to the present invention, the inner container is housed so that the inner container can be taken in and out, the inner container is received on the heating plate inside the container, and the inner container is transferred by heat conduction from the heating plate. The contents are heated, heated and kept warm, and the inner container can be taken out of the container as necessary to handle variously.

In particular, due to the uneven contact between the inner container and the hot plate, foreign matter entering between the inner container and the hot plate is received in the gap to ensure contact with the contact area, and the space between the hot plate and the inner plate is secured. While ensuring the necessary heat conduction, it is possible to prevent the inner container from being lifted up from the hot plate due to foreign matter that has entered between the hot plate and the inner container, thereby causing an abnormal temperature rise of the hot plate.

Further, since the bottom of the inner container is reinforced by the uneven shape, it is difficult to be deformed even when it is taken out and handled. .

The irregularities of the concave-convex receiving surface and the concave-convex contact surface are concentrically arranged annular shapes, and foreign matter, water, etc., which have fallen on the bottom surface of the upward concave portion of the concave-convex receiving surface, are conveyed along the concentrically arranged annular irregularities. It is easy to wipe off each upward concave part or collect it at a necessary place, and each convex part on the concentric annular line of the concave-convex receiving surface is divided at a common radiation position, so that each upward concave part Foreign matter and water collected at the required locations can be collected at the outer and inner perimeters of the hot plate over each convex part, making cleaning of the hot plate and treatment of water etc. dropped on the hot plate easy. It is.

[0014]

1 to 5 show a first embodiment in which the present invention is applied to an electric hot water storage container.

As shown in FIG. 1, the electric hot water storage container of the present embodiment has a double-walled housing in which a metal-made container-type interior case 2 is housed in a metal-made cylindrical exterior case 3. 1, a metal inner container 31 is fitted into the body 1 from above through the upper end opening 1a, and is housed so that it can be taken in and out.

The inner case 2 is received at its upper end flange 2a by a synthetic resin shoulder member 4 fitted to the upper end of the outer case 3 from above, and is attached by screws 345 as shown in FIG.

A bottom ring 7 made of synthetic resin is applied to the lower end of the outer case 3. A plurality of claws provided with a bottom lid 10 made of synthetic resin are provided in an opening 7a of the bottom ring 7. It is attached by fitting and screwing at one place.

A rotary seat 9 is rotatably fitted to an outer peripheral portion of a lower surface of the bottom cover 10 by a plurality of claws provided on the bottom cover 10. When the housing 1 is fixed, the rotary seat 9 is mounted on the rotary seat 9. 1
Can be rotated lightly.

On the inner bottom surface of the interior case 2, an aluminum hot platen 8 in which sheathed heater type heaters 8a and 8b are embedded is provided. The heaters 8a and 8b are a water heater and a warming heater.

A heat shield plate 12 is applied to the lower part of the bottom of the interior case 2 and is received by the inner bent edge 2a1 at the lower end of the body portion of the interior case 2, and the heat shield plate 12 and the bottom ring 7 are fixed by a metal fitting 601. The inner case 2, the outer case 3, the shoulder member 4, the bottom ring 7, and the heat shield plate 12 are integrally connected to each other to fix the body 1 firmly.

The hot platen 8 is received on the upper surface of the heat shield plate 12, and one place on the circumference is attached with screws 11,
The heat plate 8 is fixed on the heat shield plate 12 by fitting the projections 8d of the other portions of the heat plate 8 into the mounting holes of the heat shield plate 12.

As shown in FIGS. 1 and 2, a cylindrical portion 12a is provided at the center of the heat shield plate 12, and is located in a through hole 8c provided at the center of the hot platen 8. The sensor holder 15 is fitted to the cylindrical portion 12a so as to be able to move up and down, and is urged by a spring 16 so as to be always at the upper limit position. The upper limit position of the sensor holder 15 is the sensor holder 1
In order to prevent the temperature sensor 18 held at the upper end of the heating plate 5 from being affected by heat from the side of the heating plate 8, the heat insulation is fitted between the inner peripheral portions of the cylindrical portion 12 a and the through hole 8 c of the heating plate 8. It is regulated by the inner flange 17a of the cylinder 17. The heat insulating cylinder 17 has a hook-shaped cross-section that covers the inner peripheral edge of the through hole 8c of the hot plate 8 and the inner periphery of the cylindrical portion 12a with respect to the temperature sensor 18 side, so that the heat of the hot plate 8 affects the temperature sensor 18. Is prevented, and the heating control based on the temperature information from the temperature sensor 18 is properly achieved.

The upper end of the sensor holder 15 holding the temperature sensor 18 protrudes from the upper surface of the hot platen 8 by a predetermined amount at an upper limit position. When the sensor holder 15 is placed on the upper surface of the heating plate 8, the sensor holder 15 protruding above the heating plate 8 is pressed down so as to be flush with the upper surface of the heating plate 8. As shown in FIGS. 1 and 2, the inner container 31 is pressed against the bottom of the inner container 31 so that the temperature sensor 18 detects the temperature of the inner container 31 properly.

A photo sensor 20 is provided in the sensor holder 15 for determining when the upper end of the sensor holder 15 projects above the hot platen 8 and when it is pressed down by the inner container 31. It is possible to detect the presence or absence of wearing.

A thermal fuse 6 is provided on the outer periphery of the heat shield plate 12.
Numeral 72 is attached by a screw so that the power is cut off due to an abnormal temperature rise in an empty cooking state.

A circuit housing box 40 is provided on the bottom ring 7 so as to be integrally formed with a downward opening. The circuit board 41 housed in the circuit housing box 40 is waterproofed against water leakage from above. I have. Further, the circuit housing box 40 is covered with a bottom lid 401 from below, so that it can cope with flooding from below such as when the container 1 is immersed in water.

The control circuit 4 mounted on the circuit board 41
Numeral 2 utilizes the microcomputer 43. The microcomputer 43 has a beak-shaped protrusion 4a projecting forward from the shoulder member 4 as shown in FIG.
Signals are transmitted and received to and from the operation panel 118 shown in FIG. 5, and various detection signals from the temperature sensor 18 and the photo sensor 20 are received to perform operation control of boiling and heat retention, and display control by operation display and timer setting. It is supposed to do.

At the upper end of the body 1, the body 1 formed by the shoulder member 4
Is provided with a lid 6 for covering the upper end opening 1a.
As shown in FIG. 1, the body lid 6 is pivotally attached to the shoulder member 4 at the rear part by a hinge pin 68 so as to be openable and closable. The pivoting of the body lid 6 is performed on a partially open type bearing 69 integrally formed with the shoulder member 4 so that the hinge pin 68 can be detached from the bearing 69 with the body lid 6 opened. .

By attaching and detaching the hinge pin 68, the container lid 6 can be attached and detached, thereby facilitating washing of the container itself and supply / discharge of the content liquid while the container 31 is accommodated in the container 1.

As shown in FIG. 1, the free end of the body lid 6 is guided by the back plate 81 of the body lid 6 to advance and retreat, and when the body lid 6 is closed, the spring 72 biases the spring. A lock member 171 that engages with a locking portion 45 formed on a part of the shoulder member 4 and locks the container lid 6 in a closed state is provided.

The lock member 171 is provided in combination with a lock release lever 79 provided with an operation portion 79a.
3, the lock member 171 is rotated.
Is retracted against the spring 72 to release the lock. At the same time, by further raising the operating portion 79a of the lock release lever 79, the lid 6 can be opened upward as it is following the release of the lock.

As shown in FIG. 1, a shoulder member 32 made of synthetic resin is provided on the upper end of the inner container 31, and the flange 31a of the inner container 31 is received at the lower end of the shoulder member 32 and fixed with screws 345. .

When the inner container 31 is stored in the container 1,
The shoulder member 32 is fitted to the shoulder member 4 of the body 1 as shown in FIG. 1 to form a double shoulder structure. Here, the shoulder member 32 of the inner container 31 also has a beak-shaped protruding portion 32a, and fits into the concave portion 4b of the beak-shaped protruding portion 4a of the shoulder member 4 of the container body 1.

At the front of the outer surface of the inner container 31, a base is connected to the lower portion of the inner container 31 and rises, forming a bent path 33a that is bent downward at a position above the full position A of the inner container 31 to discharge the contents. A content liquid discharge passage 33 facing a position where the liquid can be poured out of the container 1 is provided. Reference numeral 33b denotes a spout formed at the downward end of the curved path 33a.

The content liquid discharging path 33 includes the bent path 33a and the inner container 31 and the upper end opening 1a with respect to the body 1.
The inner body 31 and the bending path 33a
Has an inner peripheral surface shape including the recessed portion 4b, which is necessary for the content liquid discharge passage 33 including the vertical direction to be taken in and out.

As shown in FIG. 1, the spout 33b of the bent path 33a of the content liquid pouring path 33 has an inward opening slightly upward in the middle of the front of the concave portion 4b of the beak-shaped projection 4a of the container 1, as shown in FIG. When the inner container 31 is inserted into and removed from the container 1 through the opening 201, the inner container 31 is vertically inserted into and removed from the beak-shaped protrusion 4a. When the inner container 31 is fitted into the container 1, the spout 33b is inserted into the beak-shaped protrusion. 4a, the content liquid can be substantially discharged to the outside of the container 1.

Therefore, the content liquid discharging passage 33 is located together with the inner container 31 irrespective of the opening / closing of the container lid 6, and the outlet 33 b faces the beak-shaped protrusion 4 a, and the content liquid flows out of the container 1. Be ready to pour.

A discharge passage 202 is provided in the beak-shaped protruding portion 4a. The contents liquid discharged from the outlet 33b of the contents liquid discharge passage 33 is once released to the atmosphere, then received and guided obliquely downward and forward. The solution can be discharged gently without splash. A discharge port 202a at the lower end of the discharge passage 202 slightly protrudes to the outside through an opening 203 at the bottom of the beak-shaped protrusion 4a, so that the liquid to be poured can be discharged downward.

Here, the discharge passage 202 is connected to the content liquid discharge passage 3
3 and receives and guides the content liquid discharged from the spout 33b of the third liquid, and since the guide direction is obliquely downward and forward, the spout 33b of the content liquid discharge passage 33 is located at the body of the body 1. On the other hand, even if it does not protrude outward greatly, the liquid in the discharge can be guided and discharged to a position far away from the body of the container 1 by the guide of the discharge passage 202, so that the mouth is more open than the circumference of the body like a teapot. It is also convenient for injecting liquid into a container having such a shape that its mouth is difficult to approach the container 1.

For this reason, the outlet 33b of the content liquid discharge passage 33 which can substantially guide the content liquid to the outside of the container 1 and discharge it.
The entire container up to and including the inner container 31 can be inserted into and removed from the container 1 without being subjected to other restrictions by the opening / closing structure of the container lid 6 and the like. This is achieved by reducing the outward projection of the body 1 from the body, thereby simplifying the structure of the content liquid pouring path 33 with the inner container 31 and the opening and closing of the container lid 6. There is an advantage that it is not necessary to adopt a complicated connection structure in the middle such as connection or disconnection.

In addition, the passages can be properly connected and disconnected with the opening and closing of the body lid 6 without liquid leakage. And the inconvenience of having to frequently replace the seal structure due to fatigue over time is also eliminated.

The middle part of the content liquid discharge passage 33 is shown in FIG.
Is formed by a transparent tube 340, and the liquid level of the content liquid flowing into the transparent tube 340 is indicated by the liquid level of the resin-made protective cover 36 provided on each front surface of the inner case 2 and the outer case 3 of the body 1. It is made visible through the window 37 from the outside.
Furthermore, the interior case 2 and the exterior case 3
Slits 2b and 3 corresponding to the liquid amount display window 37 of FIG.
b is provided so that the amount of liquid in the inner container 31 can be seen from outside the container 1 (FIGS. 1 and 5).

A transparent cover sheet 600 is attached to the slit 3b of the outer case 3, and a scale or the like corresponding to the liquid level that can be seen through is provided by printing or the like.

The bent path 33a of the content liquid discharging path 33 bends downward at a position higher than the full position A of the inner container 31 to enable the discharge of the content liquid.
Even if the contents liquid is filled up to this point, it is possible to prevent the contents liquid from overflowing from the curved path 33a of the contents liquid discharge path 33 and naturally flowing out.

The curved path 33a of the content liquid discharge path 33 is
As shown in FIGS. 1 and 3, a lower end of a valve chamber 71 for accommodating a water stop valve 76 at the time of falling provided in the middle of the content liquid discharge passage 33, and a connection port 71 b provided at a lower portion of the valve chamber 71. To
A connection port 33f of the content liquid discharge passage 33 opened on the upper surface of the shoulder member 32 of the inner container 31 is detachably connected by a helicoid screw 33g or the like, and the bent passage 33a is connected to the valve chamber 7.
By removing it together with 1, the valve chamber 71 in which dirt in the content liquid pouring path 33 easily accumulates, and the bent path 33a and spout 33b in which dirt is easy to see out are easy to clean and easy to keep clean.

Further, as shown in FIG.
3 has a built-in valve 73 urged upward by a spring 72 at a portion of the connection port 33f, and connects a valve rod 73a of the valve 73 to a connection port 71b of a valve chamber 71 connected to the connection port 33f.
When the curved path 33a is connected to the connection port 33f, the valve 73 is pushed down by the connection port 71b against the spring 72 via the valve rod 73a, and the valve 73 is connected to the connection port 33f.
f allows the content liquid to be discharged through the content liquid discharge passage 33 away from the valve seat 33h formed in the valve seat 33f.
If 3a is not connected to the connection port 33f, the valve rod 73
The valve 73 having “a” becomes free and is moved upward by the urging of the spring 72, and the valve 73 is pressed against the valve seat 33 h to close the valve seat 33 h, thereby preventing the discharge of the content liquid through the content liquid discharge passage 33. However, it is possible to prevent the content liquid from being poured out without the bent path 33a, and to prevent the inconvenience of inadvertently discharging the content liquid from flowing out from the connection port 33f.

A bellows pump 101 is provided between the body cover 6 and the back plate 81, and is pressed by a pressing plate 102 exposed on the upper surface of the body cover 6 to pressurized air from the discharge passage 103. As shown by an arrow 1 in FIG.

When the pressurized air is sent into the inner container 31, the liquid is pressurized to push out the liquid, and the liquid is poured out of the container 1 through the liquid discharge passage 33 and can be poured into the discharge passage 202. .

The inner container 3 is provided on the lower surface of the back plate 81 of the container lid 6.
A metal inner lid 85 that closes the mouth portion 1 is applied, and is stopped with screws 83. A seal packing 84 facing the rim of the inner container 31 is sandwiched between the outer periphery of the inner lid 85 and the back plate 81. When the container lid 6 is closed, the inner lid 85 is held by the seal packing 84. The inner container 31 is closed by contacting the edge of the inner container 31.

As shown in FIG. 1, between the back plate 81 and the inner lid 85, a steam passage 87 for allowing steam generated in the inner container 31 to escape to the outside is used to transfer the air discharged from the discharge passage 103 to the inside. The auxiliary plate 104 is formed in such a manner as to partially serve as a part of the passage leading into the container 31.

The steam passage 87 has an opening 86 in the inner lid 85 for both air supply to the inner container 31 and an opening 52 to the outside on the rear upper surface of the lid 6.

A valve port 105 is formed between the auxiliary plate 104 and the back plate 81 of the steam passage 87 in the middle of the steam passage 87, and a container body is provided between the auxiliary plate 104 and the inner lid 85. Water valve 1 for closing the valve port 105 when the vehicle 1 falls
06 is provided.

On the other hand, a holding cylinder 112 is provided at the center of the back surface of the bellows pump upper plate 111 located inside the pressing plate 102, and a hollow valve rod 113 is fitted on the inner periphery of the holding cylinder 112 so as to be slidable up and down. To form a part of the discharge passage 103, and urges the valve rod 113 downward by a spring 114 that is operated between the valve rod 113 and the bellows pump upper plate 111, and the valve rod 113 engages with the holding cylinder 112. The maximum downward movement position from the holding cylinder 112 is regulated by this.

Between the holding cylinder 112 and the valve rod 113, the valve rod 11 when the holding cylinder 112 is moved down and the valve rod 113 is pressed down via the spring 114 against the valve port 105, and is individually moved down.
An air supply port 611 that is opened by relative movement with respect to 3 is provided,
When the air supply port 611 is opened, the discharge passage 103 is opened.
The compressed air can be sent from the bellows pump 101 into the inner container 31 through the through hole. A valve 701 which is normally closed by its own weight is provided at an intermediate portion of the valve rod 113 so that steam does not enter the bellows pump 101 through the valve rod 113. But,
When the body 1 falls, it enters the bellows pump 101 while pushing and opening the valve 612 to delay the outflow to the outside through the steam passage 87.

An outer peripheral portion is annularly sandwiched between the back plate 81 and the auxiliary plate 104 at a circumferential position around the central opening 115 of the back plate 81, and an inner peripheral portion is an outer periphery of a lower end portion of the valve rod 113. Valve part 1 fitted on the rim of the valve port 105
A valve membrane 116 having 16a is provided.

Thus, the valve membrane 116 prevents the pressurized air from leaking and the steam from entering the bellows pump 101 through the gap at the fitting portion between the valve rod 113 and the opening 115, and the valve portion 116a Is the pressing plate 102
When the bellows pump upper plate 111 is moved downward by the pressing of the valve, the valve rod 113 moves together with the bellows pump, whereby the bellows pump 101 and the inner container 31 are brought into pressure contact with the rim of the valve port 105 quickly. The discharge passage 103 is formed by communicating with a part thereof and the valve rod 113, and sufficient pressurized air is sent into the inner container 31 through the discharge passage 103 by a sufficient pressing stroke of the bellows pump 101 obtained thereafter. The bellows pump 101 can be repeatedly pressed while the valve portion 116a is not separated from the rim of the valve port 105, so that the pressurized air is released in the middle. It is possible to intermittently continue the operation of pressurizing and discharging the content liquid without being performed.

Further, an opening 52 to the outside of the steam passage 87 is provided at a position close to the hinge pin 68 of the body lid 6, and a valve port 612 is provided at a portion immediately below the opening 52, and a valve port 612 is provided below the valve port 612. An overturn water stop valve 613 is provided to close the valve port 612 when the body 1 is overturned and pressed by its own weight or the content liquid, and the overturn water stop valve 106 is used to generate steam when the body 1 is overturned. The outflow of the content liquid through the passage 87 is further easily prevented.

In this embodiment, taking advantage of the safety against the outflow of the liquid content, cuts 105a are formed at several places on the lower surface of the opening edge of the valve port 105 which is closed by the water stop valve 106 at the time of falling. Therefore, when the body lid 6 is suddenly closed, there is no such a notch 105a in the related art.
The water stop valve 106 at the time of overturning is partially fitted into the valve port 105 by self-inertia and crimped, and is maintained in a crimped state due to an unbalanced state of the internal and external pressures, that is, the internal pressure tends to be high, Although the inside of the inner container 31 may be naturally pressurized, it is possible to prevent the close contact or the close contact from being maintained by the ventilation at the notch 105a, and the natural pressurization as described above may occur. Can not be.

The upper plate 111 of the bellows pump 101
1 is provided with an intake valve 211 made of resin as shown in FIG. 1 so that when the bellows pump 101 is restored after the pressing operation, the intake valve 211 is opened so that outside air can be sucked through the intake port 212. ing. At this time, the intake port 212 is located far from the inside of the inner container 31 of the bellows pump 101 and close to the outside, so that cold air is easily sucked. Therefore, when the bellows pump 101 is pressed next time, the expansion of the air when the air in the bellows pump 101 is blown into the inner container 31 can be largely expected, and the pressurizing efficiency of the content liquid can be improved. it can.

Around the portion of the body lid 6 where the pressing plate 102 is provided, there is provided a pouring lock member 122 for preventing the pressing plate 102 from being pushed down by the rotational position and releasing the blocking. The operation is performed by an operation projection 122a protruding from the upper surface of the body lid 6.

Further, a purifier 703 is attached to the inner container 31 by a pin 702, and the purifying material cartridge 704 is inserted into the purifier 703 so that the purifying material cartridge 704 can be detachably attached to the purifier 703, so that the inner liquid is heated. The content liquid can be purified, for example, by removing calcium in the content liquid by contact using the convection at the time or the flow when the content liquid is poured out. However, the method of providing the purifier 703 is free.

In particular, in this embodiment, as shown in FIGS. 1 and 2, an uneven receiving surface 711 is formed on the upper surface of the hot platen 8, and an uneven contact surface 712 which comes into contact with the uneven receiving surface 711 is formed on the inner container 31. Formed on the lower surface of the bottom of the
A gap S is formed between the bottom surface 711b of the lower surface 11a and the lower surface 712b of the downward convex portion 712a of the uneven contact surface 712. As shown in FIG.
The inner container 31 is located above the uppermost surface of the uneven surface 711.

In such a configuration, when the inner container 31 accommodated in the container 1 is received on the hot platen 8, the concave and convex receiving surface 711 formed on the upper surface of the hot platen 8 is attached to the bottom lower surface of the inner container 31. The uneven contact surface 712 formed on the hot plate 8 has a flat surface, so that the contact area between both surfaces, that is, the heat conduction area from the hot plate 8 to the inner container 31 increases as compared with the case where the upper surface of the hot plate 8 is a flat surface. Therefore, even if the capacity of the heaters 8a and 8b is increased without increasing the size of the heating plate 8, the inner container 31, and the container 1, the amount of heat transferred to the inner container 31 per unit area of the heating plate 8 does not increase. It is possible to prevent the hot platen 8 from being melted down or to lower the heating efficiency, and to realize the early start-up of the water heater.

Further, even if the inner container 31 is taken out of the body 1 and foreign matter adhering to the body 1 or foreign matter outside the body 1 may fall on the upper surface of the hot platen 8, The foreign matter falls into the upward concave portion 711a of the unevenness receiving surface 711 of the hot platen 8, and settles on the bottom surface 711b of the upward concave portion 711a of the hot platen 8. Therefore, in this state, the inner container 31 is attached to the container 1.
Is accommodated, and even if the uneven contact surface 712 on the lower surface of the bottom of the inner container 31 contacts the uneven surface 711 on the upper surface of the hot platen 8, the bottom surface 711b of the upward concave portion 711a of the uneven surface 711
And the foreign substance is located in the gap S formed between the lower surface 712b of the downwardly protruding portion 712a of the concave-convex contact surface 712 on the lower surface of the bottom of the inner container 31. Even if foreign matter is caught between the two, the uneven contact surface 712 can be brought into contact with the uneven receiving surface 711 as usual, and heat conduction from the hot platen 8 to the inner container 31 is not hindered. The control for increasing the capacity works to prevent the hot plate from being overheated and melted, so that normal use can be guaranteed.

Further, since the bottom of the inner container 31 is reinforced by the concave and convex shape, it is difficult to be deformed even when it is pulled out and handled. improves.

Further, the inner container 31 received in the container 1
Is received on the hot platen 8 in the container 1, and the uneven contact surface 712 on the bottom lower surface of the inner container 31 is changed to the uneven receiving surface 71 on the upper surface of the hot platen 8.
The inner container 31 is positioned at an appropriate heat conducting position from the hot platen 8 in the container body 1 by the engagement between the two when it comes into contact with the container 1, so that the proper use is also ensured. It is possible to guide the fitting between the uneven surface of the uneven surface 711 and the uneven surface of the uneven surface 712, so that a special positioning operation is not required, and it is not difficult to use for the positioning. .

The uneven receiving surface 711 and the uneven contact surface 71
The concavities and convexities of 2 are concentrically arranged annular shapes, and foreign substances, water, etc., which have fallen on the bottom surface of the upward concave portions of the concave and convex receiving surface 711, are wiped for each upward concave portion along the concentrically arranged annular irregularities, It is easy to gather in the required places and the uneven receiving surface 71
Since each of the convex portions 711c on the one concentric annular line is divided at a common position on the radiation, foreign matter and water collected at necessary locations in each of the upward concave portions 711a divide each of the convex portions 711c. Since it can be concentrated on the outer periphery and inner periphery of the hot platen 8 over the straight line at the portion 711d,
Cleaning of the hot platen 8 and treatment of water or the like dropped on the hot platen 8 are easy.

The convex portion 711c has a semicircular cross section, and foreign matter falling on the hot platen 8 is
There is an advantage that it easily slides down to the bottom surface 711b of 1a.

FIG. 6 shows a second embodiment of the present invention, which is different from the first embodiment in that a convex portion 711c of an uneven receiving surface 711 formed on the upper surface of the hot platen 8 has a trapezoidal cross section. ing.
However, there is no particular change in the operation and effect. Also,
Although the surface heater 8f is applied to the back surface of the hot platen 8 to heat the inner container 31 via the hot platen 8, this is also different from the first embodiment, but there is no particular change in the operational effects. .

[0070]

According to the main features of the electric hot water storage container of the present invention, the inner container is housed so that the inner container can be taken in and out, the inner container is received on the heating plate inside the container, and the heat is transferred from the heating plate. By heating the inner liquid in the inner container, boiling the water or keeping the temperature, the inner container can be taken out from the container as needed, and can be handled variously.

In particular, due to the uneven contact between the inner container and the hot plate, foreign matter entering between the inner plate and the hot plate is received in the gap, and the contact at the contact area is ensured. While ensuring the necessary heat conduction, it is possible to prevent the inner container from being lifted up from the hot plate due to foreign matter that has entered between the hot plate and the inner container, thereby causing an abnormal temperature rise of the hot plate.

Further, since the bottom of the inner container is reinforced by the uneven shape, it is difficult to be deformed even when it is taken out and handled. .

The irregularities of the concave-convex receiving surface and the concave-convex contact surface are concentrically arranged annular shapes, and foreign matter, water, etc., which have fallen on the bottom surface of the upwardly facing concave portion of the concave-convex receiving surface are removed along the concentrically arranged annular irregularities. It is easy to wipe each upward concave part and collect it at the required place, and each convex part on the concentric annular line of the concave and convex receiving surface is divided at a common radiation position, so that each upward concave part Foreign matter and water collected at the required location for each recess can be collected at the outer and inner perimeters of the hot plate over each convex portion, thus cleaning the hot plate and treating water that has fallen on the hot plate. Is easy.

[Brief description of the drawings]

FIG. 1 is a sectional view of an electric hot water storage container as a first embodiment of the present invention.

FIG. 2 is a sectional view showing a relationship between a hot plate of the electric hot water storage container of FIG. 1 and a bottom of an inner container.

FIG. 3 is a cross-sectional view showing a structure for attaching and detaching an outlet-side curved path of a content liquid outlet path of the electric hot water storage container of FIG. 1;

FIG. 4 is a perspective view of a hot plate of the electric hot water storage container of FIG. 1;

FIG. 5 is a front view of the electric hot water storage container of FIG. 1;

FIG. 6 is a cross-sectional view illustrating a relationship between a hot platen and a bottom of an inner container according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container body 8 Hot plate 18 Temperature sensor 31 Inner container 711 Irregularity receiving surface 711a Upward concave part 711b Bottom surface 711c Convex part 711d Division part 712 Irregular contact surface 712a Downward convex part 712b Lower surface S gap

Claims (2)

(57) [Claims] 1. An inner container for containing an inner liquid, and a container for removably receiving the inner container, receiving the inner container on a hot plate provided on a bottom portion, and heating the inner plate, and having an uneven surface on an upper surface of the hot plate. forming a receiving surface, the gap between the forming an uneven contact surface facing against this irregularity receiving surface on the bottom of the inner container, the bottom surface of the upward recesses of these irregularities receiving surface, and a downward convex portion of the concavo-convex contact surface And a temperature sensor that detects the temperature of the content liquid
An electric hot water storage container, which is located above an uppermost surface and is in contact with an inner container. 2. The concavo-convex surface and the concavo-convex surface of the concavo-convex contact surface are annular in a concentric arrangement, and each of the convex portions on the concentric annular line of the concavo-convex receiving surface is separated at a common radiation position. 2. The electric hot water storage container according to 1.