JP3095004B2 - 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 detection of the amount of hot water in an electric hot water storage container.

[0002]

2. Description of the Related Art A well-known electric hot water storage container includes a container body provided with an inner container for storing hot water, a lid for opening and closing the container body, and a heating means for heating the inner container. There is an electric heater provided with an electric heater, a discharge passage for discharging the hot water in the inner container to the outside, and a pump device for discharging the hot water through the discharge passage.

[0003] In the case of the electric hot water storage container having the above-described structure, if the remaining amount of hot water contained in the inner container can be externally confirmed before the pump device is driven to perform the pouring operation, it is difficult for the user. Extremely convenient.

[0004] In order to respond to the above demands, various kinds of remaining amount display have been conventionally performed. For example, there is known a method in which a transparent liquid pipe is provided in the middle of a discharge passage from an inner container, and the water level in the liquid pipe is visually recognized from the outside.

[0005]

In the case of the above-mentioned method for displaying the amount of hot water, since it is necessary to arrange the liquid amount pipe at a position that can be visually recognized from the outside, it is usually arranged that the pouring passage passes through the outside of the inner container. Although the liquid amount pipe is provided in the middle of the configuration, the temperature of the hot water remaining in the liquid amount pipe is lowered. Then, at the time of the next pouring, there occurs a problem that the low-temperature hot water remaining in the liquid volume pipe is poured first.

The present invention has been made in view of the above points, and has a configuration capable of maintaining the temperature of hot water to be poured at a high temperature.
It is an object of the present invention to display the amount of hot water in the inner container.

[0007]

According to the first aspect of the present invention, there is provided a container provided with an inner container having a vacuum double structure having a vacuum space between an inner cylinder and an outer cylinder. A main body, a lid of the container main body, a heating means for heating the inner container, a pouring passage for pouring hot water in the inner container to the outside, and sending out hot water through the pouring passage. In an electric hot water storage container provided with a pump device, a liquid amount pipe for displaying a water level at a position visible from the outside in the middle of the pouring passage, and a liquid amount pipe connected in parallel with the liquid amount pipe, A second liquid flow tube having a larger inner diameter and containing a resistance member that increases the flow resistance;

With the above-mentioned structure, the water level can be indicated by the liquid pipe, and at the time of dispensing,
Due to the difference in flow resistance between the liquid pipe and the second liquid pipe, the residual hot water in the liquid pipe first flows into the second liquid pipe from above,
When the liquid volume tube becomes full, the hot water that has passed through the liquid volume tube is poured out.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying drawings, a reference example and a preferred embodiment of the present invention will be described in detail below.

Reference Example FIG. 1 shows an electric hot water storage container according to a reference example of the present invention.

The electric hot water storage container includes a container body 1 having an inner container 3 for storing hot water, a lid 2 of the container body 1, an electric heater 4 serving as a heating means for heating the inner container 3, and A pouring passage 5 for pouring out the hot water in the inner container 3 to the outside,
And a pump device 6 for sending out hot water through the pouring passage 5.

The container main body 1 includes an outer case 7 made of a synthetic resin forming an outer peripheral surface, and the inner container 3 forming an inner peripheral surface.
And an annular shoulder member 8 connecting the outer case 7 and the inner container 3 to each other, and a synthetic resin bottom plate 9 constituting a bottom surface.

The inner container 3 has a vacuum double structure 3 having a continuous vacuum space 10 from the side periphery to the bottom periphery.
a, and a non-vacuum part 3b which is located at the center of the bottom surface and has no vacuum space.
Metal-made (for example, stainless steel) bottomed inner cylinder 11
And an outer cylinder 12 made of metal (for example, stainless steel) located outside the inner cylinder 11. Also,
The non-vacuum section 3b is constituted only by the bottom of the inner cylinder 11.

A water supply port 13 having a smaller diameter than the body is formed at the opening of the inner container 3.
A full scale 14 is provided in a lower part of the area.

The electric heater 4 is arranged in contact with the lower surface of the non-vacuum section 3b of the inner container 3. A temperature sensor 15 for detecting the temperature of the inner container 3 is provided at the center of the electric heater 4 on the lower surface of the raised portion 16 formed in the non-vacuum portion 3b of the inner container 3. They are arranged in contact with each other. Reference numeral 17 denotes a heat shield plate.

The outlet passage 5 includes an inlet connection pipe 5a connected to the non-vacuum section 3b of the inner container 3, a pump device 6, and a lower connection pipe 5b connected to a discharge port of the pump device 6. , Connected to the lower connection pipe 5b,
A pumping pipe 5c extending upward inside the water supply port 13 and connected to an upper end of the pumping pipe 5c; And a horizontal connecting pipe 5e connected to the upper connecting pipe 5d and extending horizontally toward the inside of the beak 8a, and a horizontal connecting pipe 5e connected to the horizontal connecting pipe 5e. Outlet pipe 5 extending downward
f. That is, the pouring passage 5 is configured to pass through the inside of the inner container 3.

In the middle of the horizontal connecting pipe 5e in the pouring passage 5, a falling water stop valve 56 is provided to prevent the outflow of hot water when falling or leaning forward.

The lid 2 comprises a synthetic resin upper plate 21 and a synthetic resin lower plate 22 whose outer peripheral edge is welded to the upper plate 21 by welding. It is openably and closably and detachably supported via a hinge pin 24 with respect to a hinge receiver 23 provided at a rear portion.

A metal cover member 25 is fixed to the lower plate 21 of the lid 2 with screws (not shown). The outer peripheral edge of the cover member 25 is closed when the lid 2 is closed. A seal packing 27 that is pressed against the water supply port 13 of the inner container 3 is provided. Reference numeral 28 denotes a steam discharge passage, 29 denotes a water stop valve provided in the middle of the steam discharge passage 28, and 30 denotes a heat insulating material.

At a position outside the inner container 3 and visible from the outside (that is, an inner position of the viewing window 26 formed on the front side of the outer case 7), the lower limit water level L of the inner container 3 is set. A transparent (for example, a glass tube) liquid amount tube 18 communicating with the same position as ₀ is provided. The upper end of the liquid volume pipe 18 is communicated with the inner container 3. That is, the liquid amount pipe 18 has an inlet pipe 31 penetrating the peripheral wall (in other words, the inner cylinder 11 and the outer cylinder 12) of the inner container 3 at the lower end.
Is connected via a connecting pipe 19, and at the upper part, the peripheral wall of the inner container 3 (in other words, the inner cylinder 11 and the outer cylinder 1
The connection pipe 20 is connected to the outlet pipe 32 passing through 2).

[0021] The embodiment FIG. 2 of the first embodiment, main part of the pouring path in the electrical hot water storage vessel according to the first embodiment of the present invention is shown.

In this case, the pouring passage 5 is configured to pass outside the inner container 3, and in the middle of the pouring passage 5, a position visible from the outside (that is, formed in the outer case 7). (A position corresponding to the viewing window 26) for displaying a water level, and a liquid pipe 18 connected in parallel with the liquid pipe 18;
A second liquid pipe 54 is provided which accommodates a resistance member 55 (for example, a nonwoven fabric, a fine net, or the like) having an inner diameter larger than 8 and increasing flow resistance. In this manner, the water level can be indicated by the liquid pipe 18 and the liquid pipe 18 and the second liquid pipe 54 can be displayed at the time of pouring.
First, the remaining hot water in the liquid pipe 18 flows into the second liquid pipe 54 from above due to a difference in flow resistance between the second liquid pipe 18 and the second liquid pipe 54.
Is full, the hot water that has passed through the liquid amount pipe 18 is discharged to the outside. Other configurations are as described above.
The description is omitted because it is the same as in the example .

[0023]

According to the first aspect of the present invention, there is provided a container body having an inner container having a vacuum double structure having a vacuum space between an inner cylinder and an outer cylinder, a lid of the container body, An electric hot water storage container comprising: heating means for heating the inner container; an outlet passage for discharging hot water in the inner container to the outside; and a pump device for sending out the hot water through the outlet passage. A liquid pipe for displaying a water level at a position visible from the outside in the middle of the pouring passage, and a resistance member connected in parallel with the liquid pipe and having an inner diameter larger than the liquid pipe and increasing flow resistance. And a second liquid pipe for storing the liquid level, the water level is indicated by the liquid pipe, and at the time of pouring, the liquid level is initially determined by a difference in flow resistance between the liquid pipe and the second liquid pipe. When the remaining hot water in the liquid flow pipe flows into the second liquid flow pipe from above, and the second liquid pipe becomes full, the liquid flow pipe Because through the high temperature hot water is to be dispensed to the outside, there is an effect that both the hot pouring from the water level display and the first is obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an electric hot water storage container according to a reference example of the present invention.

FIG. 2 is a cross-sectional view showing a main part of a pouring passage in the electric hot water storage container according to the first embodiment of the present invention.

[Explanation of symbols]

1 is a container body, 2 is a lid, 3 is an inner container, 4 is a heating means,
5 is a discharge passage, 6 is a pump device, 14 is a full scale, 18
Is a liquid volume tube, 40 is a transparent window, 50 is a sound wave transmitter, 51 is a sound wave receiver, 54 is a second liquid amount tube, and 55 is a resistance member.

Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47J 27/21 101

Claims (1)

(57) [Claims] 1. A container body having an inner container having a vacuum double structure having a vacuum space between an inner cylinder and an outer cylinder, a lid of the container body, a heating means for heating the inner container, An electric hot water storage container provided with a pouring passage for pouring out hot water in the inner container to the outside, and a pump device for feeding hot water through the pouring passage, wherein A liquid pipe for displaying a water level at a position visible from the outside and a resistance member connected in parallel with the liquid pipe and having an inner diameter larger than the liquid pipe and increasing flow resistance. An electric hot water storage container provided with a second liquid amount pipe.