JPH10272059A - Hot water storing electric container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent leak of residual liquid from a discharge port in a locked condition where a discharge hole is closed by a discharge preventing valve. SOLUTION: As a discharge preventing valve 43 is closed to close a conduit 32 in the middle, a return valve 51 is opened, and residual liquid in an upper chamber part 39 speedily moves to a lower chamber part 38. Residual liquid is thus prevented from staying in the upper chamber part 39 on the side of a discharge port 6, so the residual liquid is not leaked from the discharge port 6 even when a container main body is moved. The return valve 51 is kept closed to close a return hole 42 even when the container main body is inclined or fallen in this locked condition. Hot water in an inner container is thus prevented from leaking out through the return hole 42.

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 such as an electric kettle which heats a liquid contained in an inner container by a heating means and discharges hot water from the inner container through a water conduit to the outside.

[0002]

Conventionally, an electric hot water storage container of this kind is provided with an electric pump as an outflow means by heating a liquid contained in an inner container with a heating means such as a heater and operating a tapping operation section. Is operated to allow the hot water in the inner container to flow out of the water channel to the outside.However, when not in use, the hot water does not flow out of the discharge port through the water channel and in conjunction with the operation button. It has been considered to provide an outflow prevention valve that opens and closes in the middle of the headrace as a safety mechanism.

FIG. 10 schematically shows a structure around a conventional outflow prevention valve. In the figure, reference numeral 101 denotes a headrace that leads to an inner container (not shown).
A partition 105 is provided in the middle of the water conduit 101 so as to partition the water into an upper chamber 103 on the discharge port 102 side and a lower chamber 104 on the inner container side. The outflow hole 106 formed in the partition 105 is
7, the valve shaft 109 is moved downward against the bias of the spring 108 during use to release the locked state, and the outflow prevention valve 107 opens to open the upper chamber. The communication between the lower chamber 103 and the lower chamber 104 is established, and the hot water in the inner container flows out from the discharge port 102 to the outside.

In the above configuration, when the outflow hole 106 in the water conduit 101 is closed and locked by the outflow prevention valve 107 for safety, the hot water stored around the downwardly opening discharge port 102 is instantaneously discharged. Although most of the remaining liquid S in the upper chamber 103 flows out to the outside, the remaining liquid S is stored in the upper chamber 103 as it is. Have a problem of leaking from the discharge port 102.

In view of the above problems, an object of the present invention is to provide an electric hot water storage container which can prevent leakage of residual liquid from a discharge port in a locked state where an outflow hole is closed by an outflow prevention valve. .

[0006]

In order to achieve the above object, an electric hot water storage container according to the present invention has a container body, a bottomed cylindrical inner container provided in the container body, and A heating means for heating the contained liquid, a water conduit leading from the inner container to the discharge port, and the water conduit is divided into a first passage on the discharge port side and a second passage on the inner container side. A partition wall, an outflow prevention valve that opens and closes an outflow hole formed in the partition wall, and opened only when the outflow prevention valve is closed, and the residual liquid in the first passage is removed from the return hole formed in the partition wall through the return hole. And a return valve for returning to the two passages.

According to the above construction, when the outflow prevention valve is closed and the water conduit is closed halfway, the return valve is opened and the residual liquid in the first passage is quickly moved to the second passage. . Therefore, the residual liquid does not accumulate in the first passage on the discharge port side, and the residual liquid does not leak from the discharge port even if the container body is arbitrarily moved in the locked state in which the outflow hole is closed. Also, in this locked state, even if the container body is tilted or turned over, the return valve is closed and the return hole is closed, so that the hot water in the inner container flows out to the outside through the return hole. Can be prevented.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a vessel main body, and the vessel body 1 is provided with a leg 3 at the bottom of an outer case 2. An upper frame 4 is fixed to an upper portion of the outer case 2, and a projection 5 is provided at a front portion of the upper frame 4, and a discharge port 6 for hot water is opened below the projection 5. It is provided. Reference numeral 7 denotes a bottomed cylindrical inner container provided in the outer case 2, which is formed of a metal such as stainless steel. Further, reference numeral 8 denotes a lid provided at an upper opening of the inner container 7. The lid 8 is provided with a hinge 9 having a spring (not shown) for urging the lid 8 in an opening direction. It is pivoted behind. At the front of the lid 8, a lid opening / closing lever 10 is provided as a lid opening / closing operation section for fixing the lid 8 in a closed state. By operating the lid opening / closing lever 10, the lid 8 is moved. It can be opened and closed. Reference numeral 11 denotes a steam hole for communicating the inside of the inner container 7 with the outside.

Here, the configuration around the lid opening / closing lever 10 will be described in further detail. The lid 8 is made of a resin material such as polypropylene, and is provided with an upper lid 13 forming an outer shell upper surface and a lower side of the upper lid 13. The lower lid 14 is combined with the lower lid 14. Reference numeral 15 denotes a concave portion formed on the upper surface of the upper lid 13, and a hand can be inserted into the handle 16 of the lid opening / closing lever 10 from the concave portion 15. Also, the lid opening / closing cover 10
Is provided so as to be rotatable (in the directions of arrows A and A 'shown in FIG. 6) about the shaft portion 17 with respect to the shaft portion 17, but on the opposite side of the handle portion 16, the cover portion 8 is provided. A first locking piece 18 extending toward the outer peripheral surface 8A of the first locking piece 18 and a second locking piece 19 extending below the first locking piece 18 are formed. Inside the lid 8 facing the lower portion of the lid opening / closing lever 10, a lock claw 20 slidably provided in a lateral direction is provided. Lock claw 20
Is pressed in one direction by the lock claw spring 21 and pushes the lock claw 20 in the other direction against the urging force of the lock claw spring 21. The locking piece 19 is in contact with the upstanding piece 22 of the lock claw 20. Further, a claw portion 23 of the lock claw 20 located on the opposite side of the lock claw spring 21 protrudes from an opening 24 formed below the outer peripheral surface 8A of the lid 8, and is formed on the inner peripheral surface 4A of the upper frame 4. The projection 25 is detachably provided. A metal lid lower surface member 26 is provided at a lower portion of the lower lid 14, and an outer peripheral portion of the lower lid 14 and the lid lower surface member 26 has an inner peripheral surface of the upper frame 4 when the lid 8 is closed. Annular packing 27 that contacts the lower part of 4A
Is clamped and fixed.

A water conduit 32 extending from the inner container 7 to the outlet 6 is provided between the outlet 31 and the outlet 6 provided at the bottom of the inner container 7. Specifically, the water conduit 32 connects an electric pump 33 provided below the inner container 7 to the outflow portion 31 and connects a joint 34 to an outlet of the electric pump 33, thereby forming a transparent pipe corresponding to a water level pipe. After the glass pipe 35 is connected to the upper part of the glass pipe 35 and the backflow stop case 36 serving as a horizontal hot water supply part, the tapping pipe 37 provided with the discharge port 6 at the end is connected to the backflow stop case 36. It is composed. In the present embodiment, the electric pump 33 is provided as an outflow means for sending hot water from the inner container 7 to the outside through the water conduit 32 under pressure. However, instead of this, an air pump mechanism having a bellows built in a lid body is provided. May constitute the outflow means.

The backflow stop case 36 constituting the water conduit 32 is
A lower chamber portion 38 corresponding to a second passage communicating with the upper portion of the glass pipe 35 on the inner container 7 side and an upper portion corresponding to a first passage provided on the upper side of the lower chamber portion 38 on the discharge port 6 side. Room 39
Are provided by being partitioned by the partition wall 40. Also, partition 40
There is an outlet hole for a valve seat that communicates the lower chamber part 38 and the upper chamber part 39.
Openings 41 and return holes 42 are respectively formed. The outflow hole 41 is provided with an outflow prevention valve 43 that opens and closes the outflow hole 41, that is, the water conduit 32, in conjunction with a tapping lock lever 64 described later. The outflow prevention valve 43 includes a valve body 44 capable of closing the entire outflow hole 41 and a valve shaft 45 extending above the valve body 44,
A valve shaft 45 is provided through the outflow hole 41 and the opening 46 formed on the upper surface of the upper chamber 39. On the upper surface of the opening 46, a packing 47 having elasticity in close contact with the outer peripheral surface of the valve shaft 45 is provided.
Is closed, and the upper end of the valve shaft 45 projects above the packing 47. Further, a spring 48 as an elastic body for urging the outflow prevention valve 43 upward is provided in contact with the bottom surface of the lower chamber 38.

A backflow stopper 50 as a safety valve for opening / closing a communication hole 49 formed in a front upper portion of the upper chamber 39 is provided near the hot water pipe 37 of the upper chamber 39, for example, made of a frame-shaped insulator member.
Is provided. This backflow stop 50 is provided with the outflow prevention valve.
It does not operate by an external operation as in 43, but normally sits on the front of the upper chamber 39 to open the communication hole 49, especially when the main body 1 is tilted or falls down,
Due to its own weight, it quickly moves to the communication hole 49, and
Eventually, the water conduit 32 is closed to prevent the hot water from flowing from the inner container 7 to the discharge port 6.

Reference numeral 51 denotes a return valve fixedly mounted on the lower surface of the partition wall 40 with one side thereof being cantilevered. This return valve 51
Is made of a thin plate member such as a synthetic resin that can be easily deformed by an external force, and is provided so as to open and close the return hole 42 from the lower chamber 38 side. The lower chamber 38 and the upper chamber 39
Is provided at a position higher than the liquid level of the inner container 7 at the time of the maximum hot water storage. When the valve body 44 of the outflow prevention valve 43 is closed to close the outflow hole 41, the lower chamber portion 38 side becomes negative pressure. As a result, the return valve 51 is deformed and opened, and returns to the lower chamber 38 through the return hole 42 in which the residual liquid in the upper chamber 39 is opened.

Reference numeral 55 denotes a heater as a heating means mounted and fixed to a lower portion of the inner container 7, which is used for heating the liquid contained in the inner container 7 and for keeping the temperature of the hot water at a predetermined temperature. Used. Reference numeral 56 denotes a thermistor as a temperature detecting element which is in contact with a lower portion of the inner container 7. The thermistor 56 is for detecting the temperature in the inner container 7, and based on the temperature information from the thermistor 56, a control circuit 57 provided at the lower part of the container body 1 controls the power cutoff of the heater 55. I have.

An operation panel 61 provided with various operation means and display means such as LEDs is provided above the protrusion 5 constituting the upper frame 4. The operation panel 61 includes a pair of tapping buttons 62 as a tapping operation unit that performs a push operation when tapping.
63 and a tapping lock lever 64 serving as an operation unit are provided so as to protrude from the seat member 65. Hot water lock lever
Reference numeral 64 denotes a function as a tapping lock operation section that locks the tapping buttons 62 and 63 so as not to move when the sliding operation is performed to one side, and prevents tapping from the inner container 7, and a sliding operation to the other side. Then, the tapping buttons 62 and 63 can be pushed and operated, and also function as a tapping lock release operation unit for releasing the lock so that tapping from the inner container 7 can be performed. The tap lock lever 64 is connected to the tap button 6.
A function as a lid lock operating section for locking the lid 8 in the closed state in conjunction with the locking operation of the valves 2 and 63, and a valve lock operating section for locking the outflow prevention valve 43 for opening and closing the water conduit 32 in the closed state. It also has the function as. Further, the tapping lock lever 64 functions as a lid unlocking operation unit for unlocking the closed state of the lid 8 in conjunction with the unlocking operation of the tapping buttons 62 and 63, and opens and closes the water guide channel 32. It also has a function as a valve unlocking operation unit for unlocking the closed state of the outflow prevention valve 43.

Inside the operation panel 61, there is provided a switch member which is electrically turned on and off in response to a pushing operation of the tapping buttons 62, 63.
The control circuit 57 drives and controls the electric pump 33 based on the operation signals from the switch members 66 and 67, so that the hot water in the inner container 7 is discharged from the water conduit 32 to the discharge port 6. Is discharged to the outside. In the present embodiment, the tapping amount is switched between two levels, that is, a large tapping amount or a small tapping rate by using different tapping buttons 62, 63, but the tapping button may not be provided with such a function.

The tapping lock lever 64 is made of synthetic resin and is formed integrally with a plate-like slide member 71. Further, a horizontally long through hole 72 formed in the inner peripheral surface 4A of the upper frame 4 and a horizontally elongated through hole 73 formed in the lower portion of the outer peripheral surface 8A of the lid 8 pass through the rear side of the slide member 71. Thus, the lid lock arm 74 is provided integrally and movably. The lid lock arm 74 constitutes a child lock mechanism of the lid 8 together with the slide member 71, and when the tapping lock lever 64 also serving as a lid lock operating portion is locked, the lid opening / closing lever
It has a function of moving downward in the vicinity of the first locking piece 18 formed on the cover 10 to restrict the operation of the cover opening / closing lever 10 and thus lock the cover 8 in the closed state. As shown in FIG. 2, the tapping buttons 62 and 63 are integrally formed by a connecting member 75, and a pair of mounting holes 76 provided in the middle of the connecting member 75 The hot water tap buttons 62 and 63 are mounted at predetermined positions on the operation panel 61 by being fitted to the projections 77 provided on the back surface.

The slide member 71 is formed with a pair of slide holes 78 and 79 which are horizontally long, and a pair of guide claws 80 formed on the rear surface of the upper frame 4 come into contact with the slide holes 78, while the switch is connected to the switch. Hot water buttons 62, 63 that can contact members 66, 67
Cross projections 62A and 63A are inserted into another slide hole 79. On the back surface of the upper frame 4, another guide claw 81 is formed so as to protrude and abut on the front end of the slide member 71. And
The slide member 71 is slidable in the directions of arrows B and B 'shown in FIGS. 2 and 5 together with the tapping lock lever 64 and the lid lock arm 74, located below the upper frame 4 and the tapping buttons 62 and 63. Provided. Reference numeral 82 denotes a valve shaft contact portion formed so as to protrude downward from the slide member 71 toward the lower side of the container body 1 and to contact the upper end surface of the valve shaft 45. The valve shaft contact portion 82 has a tapered surface 83 on one side and a flat surface 84 on the other side, and when a tapping lock lever 64 also serving as a valve lock operating portion is moved in the direction B ′, When the upper end surface of the valve shaft 45 contacts the flat surface 84 and is pressed, the valve body 44 is opened against the urging force of the spring 48. Also, a slide member
On the upper surface of 71, a protrusion 85 is located around the slide hole 79.
A plurality of portions (indicated by shaded lines in the enlarged view of FIG. 2) are formed. Then, when the slide member 71 is moved in the direction B, the lower surfaces of the tapping buttons 62, 63 ride on the convex portions 85, and the tapping buttons 62, 63 cannot be pushed, that is, are locked. . FIG. 6 shows a tap lock lever.
The unlocked state in which the lock member 64 is moved in the direction B 'is shown in a cross-sectional view. In the drawing, the lock state in which the tapping lock lever 64 is moved in the direction B (see FIG. 7) and the positional relationship of the slide member 71 are the same. For convenience, the slide member is indicated by a two-dot chain line.
71 is shown.

Next, the operation of the above configuration will be described. To boil hot water, first, the tapping lock lever 64 is slid in the direction B 'to release the locked state. At this time, the slide member 71 including the lid lock arm 74 also moves in the direction B 'together with the tapping lock lever 64, so that the tip of the lid lock arm 74 is moved from the first locking piece 18 of the lid opening / closing lever 10 to the lid 8 Leave outward along the circumference of the. Therefore, when the hand is inserted into the handle 16 of the lid lock lever 10, the lid lock lever 10 can be raised in the A direction, that is, upward, around the shaft 17 against the urging force of the lock claw spring 21, At this time, the upstanding piece 22 of the lock claw 20 is pushed inward by the second locking piece 19 of the lid opening / closing lever 10, and the claw portion of the lock claw 20
By separating the projection 23 from the projection 25 formed on the inner peripheral surface 4A of the upper frame 4, the lid 8 can be freely opened around the hinge shaft 9.

After the lid 8 is opened, water is poured into the inner container 7 and a power plug (not shown) is connected to an outlet and the power is turned on. The water in the inner container 7 is heated by the heater 55 and boils. . After that, the control circuit 57 detects the boiling state by the thermistor 56, and after the boiling, while detecting the hot water temperature by the thermistor 56, the control circuit 57 controls the power supply to the heater 55 so as to keep the temperature. In addition, in order to discharge hot water in the inner container 7, the tapping lock lever 64 is operated in the direction B 'as described above,
Release the locked state. With this, the hot water buttons 62, 63
Moves to the part other than the convex part 85 of the slide member 71,
Since a gap is formed between the upper frame 4 and the slide member 71 for vertically moving the hot water tap buttons 62, 63, when one of the hot water tap buttons 62, 63 is pushed and operated, one of the switch members 66, 67 is turned on. Can be switched off. At the same time, the upper end surface of the valve shaft 45 constituting the outflow prevention valve 43 comes into contact with the flat surface 84 of the valve shaft contact portion 82 and is pushed downward against the bias of the spring 48. Is separated from the outflow hole 41, the outflow prevention valve 43 is opened, and the water conduit 32 is in a communicating state. Therefore, when one of the tapping buttons 62, 63 is pushed, the switch member 6 is pressed.
An operation signal is applied to the control circuit 57 from one of the controllers 6 and 67, and the control circuit 57 drives and controls a motor (not shown) of the electric pump 33 at high speed or low speed. Then, the hot water in the inner container 7 passes through the water pump 32, that is, the electric pump 33 from the outflow portion 31, passes through the joint 34, the glass pipe 35, and the backflow prevention case 36 in which the outflow hole 41 is opened. It flows out from the outlet 6. In this case, since the hot water sent to the lower chamber 38 presses the return valve 51, the return valve 51 closes to close the return hole 42, and does not affect the tapping operation.
Furthermore, in this use, even if the container body 1 is tilted or overturned, the backflow stopper 50 moves to the communication hole 49 side and closes the water conduit 32, so that hot water does not flow out of the discharge port 6 except at the time of tapping operation. .

On the other hand, when not in use, the tapping lock lever 64 is operated in the direction B to switch to the locked state.
In this case, since the lower surfaces of the hot water buttons 62 and 63 ride on the convex portions 85 of the slide member 71, there is no gap between the upper frame 4 and the slide member 71 for vertically moving the hot water buttons 62 and 63.
The tapping buttons 62 and 63 cannot be pushed. Also, at the same time that the tap lock lever 64 is operated in the direction B,
Since the tip of the lid lock arm 74 moves downward in the vicinity of the first locking piece 18 formed on the lid opening / closing lever 10, the lid opening / closing lever
Even if the hand is inserted into the handle 16 of the cover 10, the first locking piece 18 abuts against the tip of the cover lock arm 74 and the cover opening / closing lever 10
Can no longer be operated. Therefore, even if an infant or the like accidentally handles the handle 16 of the lid opening / closing lever 10,
Unless the tapping lock lever 64 is operated in the unlocking direction, the lid 8 cannot be unexpectedly opened.

When the tapping lock lever 64 is operated in the direction B, the upper end surface of the valve shaft 44 comes into contact with the tapered surface 83 of the valve shaft contact portion 82. The outflow prevention valve 43 is brought into close contact, and the outflow hole 41 is closed. At this time, the hot water stored around the downwardly opening discharge port 6 instantaneously flows out of the discharge port 6 to the outside, but the remaining liquid in the lower chamber portion 38 at a position higher than the liquid level of the inner container 7 is In order to return to the inner container 7 side, the lower chamber 38 is in a negative pressure state, the return valve 51 is opened, and the residual liquid in the upper chamber 39 is quickly discharged from the opened return hole 42 to the lower chamber. Returned to 38. Therefore, in the locked state in which the outflow hole 41 is closed, the container body 1
The residual liquid does not leak from the discharge port 6 even if is moved arbitrarily.

In this locked state, even if the container main body 1 is tilted or turned over, the return valve 51 is closed by the hot water sent from the inner container 7 to the lower chamber 38, and the return hole 42 is closed. So that the hot water in the inner container 7 does not flow out through the return hole 42. Further, in this embodiment, when the vessel body 1 is suddenly tilted or turned over,
Regardless of the position 64, the backflow stopper 50 further closes the communication hole 49, so that the outflow of hot water from the discharge port 6 can be reliably prevented.

As described above, in this embodiment, when the outflow prevention valve 43 is closed and the water conduit 32 is closed halfway, the return valve 51 is opened, and the remaining liquid in the upper chamber 39 is removed. Immediately lower chamber
Go to 38. Therefore, the upper chamber 39 on the side of the discharge port 6
In the locked state in which the residual liquid does not accumulate and the water conduit 32 is closed, the residual liquid does not leak from the discharge port 6 even if the container main body 1 is arbitrarily moved. Also, even if the container main body 1 is tilted or turned over in this locked state, the return valve 51 is closed and the return hole 42 is closed, so that the hot water in the inner container 7 is returned to the return hole 42.
Do not flow outside through

That is, the container body 1, a bottomed cylindrical inner container 7 provided in the container body 1, a heater 55 as heating means for heating the liquid contained in the inner container 7, and the inner container 7. A partition 40 that partitions the water conduit 32 into a water passage 32 communicating with the discharge port 6, an upper chamber portion 39 as a first passage on the discharge port 6 side, and a lower chamber portion 38 as a second passage on the inner container 7 side. An outflow prevention valve 43 for opening and closing an outflow hole 41 formed in the partition wall 40;
A return hole 42 formed in the bulkhead 40 is opened only when the valve 43 is closed.
And a return valve 51 for returning the residual liquid in the upper chamber part 39 to the lower chamber part 38, so that in the locked state where the outflow hole 41 is closed by the outflow prevention valve 43, leakage of the residual liquid from the discharge port is prevented. It is possible to prevent the hot water in the inner container 7 from flowing out through the return hole 42 to the outside when the container body 1 is tilted or turned over.

As an effect of this embodiment, in this embodiment, the lower chamber 38 at the upper end of the second passage is arranged at a position higher than the liquid level of the inner container 7, and the outflow hole is formed by the outflow prevention valve 43. Utilizing the negative pressure state of the lower chamber 38 when the 41 is closed, the return valve
51 is opened. In this case, the return valve 51
Can be realized only by attaching and fixing a plate-shaped member to the lower surface of the partition wall 40, and there is no need to incorporate a complicated mechanism into the return valve 51. Further, when the vessel main body 1 is tilted, it operates when the headrace 1 is tilted.
When the main body 1 is tilted or falls, another backflow stop 50 is operated and the water passage 32 is closed twice, so that the outflow prevention valve 43 and the outflow prevention valve 43 are provided. The double lock structure with the backflow stopper 50 increases safety.

Further, the backflow stopper 50 as a safety valve has a simple structure in which the backflow stopper 50 moves by its own weight when the container body 1 is tilted, so that there is an advantage that the structure around the backflow stopper 50 is not complicated.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

[0029]

According to the electric hot water storage container of the present invention, a container body, a bottomed cylindrical inner container provided in the container body, a heating means for heating a liquid contained in the inner container, A water conduit leading from the inner container to the discharge port, a partition partitioning the water conduit into a first passage on the discharge port side and a second passage on the inner container side, and opening and closing an outflow hole formed in the partition Spill prevention valve to open and only when the spill prevention valve is closed,
A return valve for returning the residual liquid in the first passage to the second passage from a return hole formed in the partition wall, and the residual liquid from the discharge port in a locked state in which the outflow hole is closed by an outflow prevention valve. Can be provided, and the hot water in the inner container can be prevented from flowing out through the return hole to the outside when the container body is tilted or turned over.

[Brief description of the drawings]

FIG. 1 is a sectional view of an entire electric hot water storage container showing one embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of a main part of the above.

FIG. 3 is a sectional view of a main part when the tapping lock lever is operated in an unlocked state.

FIG. 4 is a cross-sectional view of a main part when the tapping lock lever is operated in a locked state.

FIG. 5 is a bottom view of a main part as viewed from below the operation panel.

FIG. 6 is a cross-sectional view of a main part when the tapping lock lever is operated in an unlocked state.

FIG. 7 is a sectional view of a main part when the tapping lock lever is operated in a locked state.

FIG. 8 is a perspective view of a main part when the tapping lock lever is operated in an unlocked state.

FIG. 9 is a perspective view of a main part when the tapping lock lever is operated in a locked state.

FIG. 10 is a schematic explanatory view showing a structure around the outflow prevention valve in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 6 Discharge port 7 Inner container 32 Water conduit 38 Lower chamber part (2nd passage) 39 Upper chamber part (1st passage) 40 Partition wall 41 Outflow hole 42 Return hole 43 Outflow prevention valve 51 Return valve 55 Heater (heating means )

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Mikio Fujisaki 2570-1, Gosuda, Kamo-shi, Niigata Toshiba Home Techno Co., Ltd.

Claims (1)

[Claims] 1. A container body, a bottomed cylindrical inner container provided in the container body, a heating means for heating a liquid contained in the inner container, and a guide leading from the inner container to a discharge port. A water channel, a partition partitioning the water channel into a first passage on the discharge port side and a second passage on the inner container side, an outflow prevention valve for opening and closing an outflow hole formed in the partition; An electric hot water storage container comprising: a return valve that opens only when the prevention valve is closed and returns the remaining liquid in the first passage to the second passage through a return hole formed in the partition.