JP2002209746A - Electric pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize an electric pot without reducing the function of a hot water feeding pump. SOLUTION: The hot water feeding pump 18 is operated by operating a hot water feeding switch 24, and the hot water in an internal container 14 is discharged from a discharge port 20 through a water pumping up tube 21 for this electric pot 10. In such an electric pot 10, a drainage port 25 is provided on the bottom 14a of the internal container 14, and at the same time, a first connecting section 26 which protrudes in a cylindrical shape to the outside is provided around the drainage port 25. In the meantime, a second connecting section 28 is provided on the casing 27 of the hot water feeding pump 18. In this case, the inner diameter of the opening of either one of the connection sections (the inner diameter D2 of the second connecting section 28) between the first connecting section 26 and the second connecting section 28 is made larger than the outer diameter of the opening of the other connecting section (the outer diameter D1 of the first connecting section 26). Then, under a state where one of the connecting sections is inserted into the other connecting section, a space between them is sealed with seal members 29 and 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric pot for operating a hot water supply pump by operating a hot water supply switch and discharging hot water in an inner container from a discharge port.

[0002]

2. Description of the Related Art In an electric pot of this type, water stored in an inner container is heated by a heater, and is kept at a desired temperature by a heater. In addition, a user operates a hot water supply switch provided on an operation panel to operate a hot water supply pump to discharge hot water in the inner container from a discharge port provided at an upper portion of the container body.

As a connection structure between the inner container and the hot water supply pump, as shown in FIG. 14, a discharge port 2 is provided at the bottom 1a of the inner container 1, and a cylindrical shape is formed at an edge of the discharge port 2 toward the outside. A first connecting portion 3 protruding in a shape is provided. In addition, the casing of the hot water supply pump 5 connected to the water pump 4 connected to the discharge port is provided with a second connection portion 6 protruding in a substantially L-shape.

Then, the first connection part 3 and the second connection part 6
The openings are formed to have substantially the same diameter, and their outer peripheral surfaces are sealed by a cylindrical sealing member 7 in a state where these opening end surfaces are substantially in contact with each other.

[0005] However, in order to ensure sufficient sealing performance, the sealing member 7 needs to cover each of the connecting parts 3 and 6 by about 10 mm or more. Therefore, the amount of protrusion from the bottom 1a of the inner container 1 to the lower end 5a of the hot water supply pump 5 increases, and as a result, there is a problem that the overall height of the electric pot also increases.

On the other hand, an electric pot to which the connection structure shown in FIG. 15 is applied is provided. This electric pot is
In the L-shaped second connection portion 6 of the hot water supply pump 5, the cross section of the bent portion is flattened into a substantially D shape, and the protrusion amount from the bottom 1a of the inner container 1 to the lower end portion 5a of the hot water supply pump 5 is compared. It is configured so as to be relatively small.

[0007]

However, FIG.
In the electric pot shown in (2), since the cross-sectional area of the flow path is reduced in the second connection portion 6, a load is applied to the hot water supply pump 5, the function is reduced, and the usable period is shortened.

Accordingly, an object of the present invention is to provide an electric pot that can be downsized without deteriorating the function of the hot water supply pump.

[0009]

In order to solve the above-mentioned problems, a first electric pot of the present invention operates a hot water supply pump by operating a hot water supply switch and discharges hot water in an inner container through a water pump. In the electric pot which is discharged from the inner container, a discharge port is provided at the bottom of the inner container, and a first connection portion which protrudes outward in a cylindrical shape around the discharge port is provided, while a discharge port is provided on a casing of the hot water supply pump. Two connection parts are provided,
The inner diameter of the opening of one of the first connecting part and the second connecting part is larger than the outer diameter of the opening of the other connecting part, and the other connecting part is provided inside the one connecting part. Is inserted, and the space between them is sealed by a seal member.

[0010] According to the electric pot, the first connection member and the second connection member are vertically arranged in such a state that the other connection portion is inserted into the one connection portion and the space therebetween is sealed by the seal member. Not located. Therefore, the amount of protrusion from the bottom of the inner container to the lower end of the casing of the hot water supply pump can be reduced. As a result, the overall height of the electric pot can be reduced. In addition, the second connection portion
Since the cross-sectional area is not reduced by flattening the flow path, no extra load is applied to the hot water supply pump.

In the electric pot, the sealing member has a cylindrical shape, and the outer peripheral surface seals the inner peripheral surface of the one connecting portion, and the inner peripheral surface seals the outer peripheral surface of the other connecting portion. Is preferred. Alternatively, the sealing member has an outer cylindrical portion, an inner cylindrical portion, and one end thereof formed integrally with a continuous portion, and seals an outer peripheral surface of the one connection portion with an inner peripheral surface of the outer cylindrical portion. Sealing the outer peripheral surface of the other connecting portion on the inner peripheral surface of the inner cylindrical portion, or the inner peripheral surface of the one connecting portion on the outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion. It is preferable that the outer peripheral surface be sealed, and the outer peripheral surface of the other connecting portion be sealed by the inner peripheral surface of the inner cylindrical portion. Alternatively, the sealing member has an outer cylinder portion, an inner cylinder portion, and one end thereof formed integrally with a continuous portion, and seals an inner peripheral surface of the one connection portion with an outer peripheral surface of the outer cylinder portion. Sealing the inner peripheral surface of the other connecting portion with the outer peripheral surface of the inner cylindrical portion, or sealing the inner peripheral surface of the one connecting portion with the outer peripheral surface of the outer cylindrical portion,
It is preferable that the outer peripheral surface and the inner peripheral surface of the other connecting portion are sealed with the inner peripheral surface of the outer cylindrical portion and the outer peripheral surface of the inner cylindrical portion. In this case, the sealing performance of each connecting portion by the sealing member can be sufficiently satisfied.

In addition, a concave portion is provided in the inner container at the bottom thereof, and the outlet is provided at the bottom of the internal container, and the outlet protrudes outwardly around the outlet. First
Preferably, a connection is provided. By doing so, the amount of protrusion from the bottom of the inner container to the lower end of the hot water supply pump can be further reduced.

Further, a second electric pot of the present invention is an electric pot which operates a hot water supply pump by operating a hot water supply switch and discharges hot water in the inner container from a discharge port through a water pump. A concave portion is provided at the bottom of the inner container, a discharge port is provided at the bottom of the concave portion, and a first connecting portion projecting outward in a cylindrical shape is provided around the discharge port. A second connecting portion is provided in the casing of the pump, the openings of the first connecting portion and the second connecting portion have substantially the same diameter, and the outer peripheral surfaces thereof are sealed by sealing members in a state where these opening end surfaces are substantially in contact with each other. It has a sealed configuration.

According to the second electric pot, since the first connecting portion is located inside the inner container, the first connecting member and the second
Even if the connecting member is positioned in the vertical direction, the amount of protrusion from the bottom of the inner container to the lower end of the casing of the hot water supply pump can be reduced. As a result, like the first electric pot, the overall height can be reduced.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an electric pot 10 according to a first embodiment of the present invention. The electric pot 10 is a well-known electric pot including a container body 11 and a lid 12 rotatably mounted on an upper portion of the container body 11.

In the container body 11, an inner container 14 is disposed inside an outer casing 13, and a bottom 14a of the inner container 14 has
A heater 15 for boiling the contained water and a heater 16 for keeping the temperature at a predetermined temperature are provided. A control board 17 on which a microcomputer is mounted and a hot water supply pump 18 are provided between the exterior body 13 and the inner container 14. Further, a nose portion 19 is formed at an upper portion of the container body 11, and hot water sucked by the hot water supply pump 18 is discharged from a discharge port 20 provided in the nose portion 19 through a water pump 21. A display panel 22 is provided on an outer surface of an upper portion of the nose portion 19, and a display substrate 23 is provided behind the display panel 22. The display board 23 has a hot water supply switch 24,
A lock release switch, a reboiler switch, a heat keeping installation switch, and a saving timer switch are provided, and the operation units are provided on the display panel 22.

As shown in FIGS. 2 and 3, a circular outlet 25 is provided at the bottom 14a of the inner container 14. Around the discharge port 25, a first connection portion 26 that protrudes outward in a cylindrical shape is provided.

The casing 2 of the hot water supply pump 18
7 is provided with a second connecting portion 28 projecting in a substantially L-shape. The second connecting portion 28 has an inner diameter D2 of the opening.
Is formed to be larger than the inner diameter D1 of the opening of the first connection portion 26.

The first connecting portion 26 and the second connecting portion 28
It is hermetically sealed by a cylindrical sealing member 29. The seal member 29 has an inner diameter smaller than the outer diameter D1 of the first connection portion 26 and an outer diameter of the second connection portion 28.
Is formed to be larger than the inner diameter D2.

When assembling the hot water supply pump 18 to the inner container 14, for example, the first connection portion 26 is press-fitted into the internal space of the seal member 29 so as to be fitted outside. Thereby, the first
The outer peripheral surface of the connection portion 26 is sealed by the inner peripheral surface of the seal member 29.

Next, the seal member formed on the hot water supply pump 18 is press-fitted so as to cover the seal member 29, and the seal member 29 is fitted inside the opening of the seal member. Thereby, the inner peripheral surface of the second connection portion 28 is sealed by the outer peripheral surface of the seal member 29.

Then, in this assembled state, as shown in FIG. 3, the first connection portion 26 is inserted into the second connection portion 28, and as in the conventional example, these are vertically connected. Not located. Therefore, the amount of protrusion from the bottom 14a of the inner container 14 to the lower end 27a of the casing 27 of the hot water supply pump 18 can be reduced. As a result, the electric pot 10
Can be reduced in size. Further, as described above, since the first connecting portion 26 is sealed on the inner peripheral surface of the sealing member 29 and the second connecting portion 28 is sealed on the outer peripheral surface, the sealing performance of each connecting portion by the sealing member is sufficiently satisfied. can do. Further, since the second connecting portion 28 does not reduce the cross-sectional area by flattening the flow path as in the conventional example shown in FIG. 15, no extra load is applied to the hot water supply pump 18. Therefore, the function of the hot water supply pump itself can be prevented from being reduced, and the usable period is not shortened.

The procedure for assembling the inner container 14, the hot water supply pump 18 and the seal member 29 is as follows. After the seal member 29 is disposed at the second connection portion 28 of the hot water supply pump 18, the first connection portion 26 may be connected. In this case, the same operation and effect as described above can be obtained.

FIGS. 4 and 5 show an electric pot 10 according to a second embodiment. In the second embodiment, the first embodiment differs from the first embodiment only in that a seal member 30 different from the seal member 29 is applied.
This is different from the embodiment.

Specifically, the seal member 3 of the second embodiment
0 is an outer cylinder 31 and an inner cylinder 3 concentric with the outer cylinder 31.
2 and one end thereof are integrally formed by a continuous portion 33. The seal member 30 has an inner diameter of the inner cylinder portion 32 smaller than an outer diameter of the first connection portion 26 of the inner container 14 and an outer diameter of the inner cylinder portion 32 of the second connection portion 28 of the hot water supply pump 18. Is larger. Also, the sealing member 30
The inner diameter of the outer cylindrical portion 31 is smaller than the outer diameter of the second connecting portion 28.

For example, when the seal member 30 is disposed at the first connection portion 26 of the inner container 14 in a state where the seal member 30 is disposed at the second connection portion 28 of the hot water supply pump 18, as in the first embodiment, The first connection portion 26 is inserted into the second connection portion 28. Therefore, similarly to the first embodiment, the amount of protrusion of the hot water supply pump 18 can be reduced, and the overall height of the electric pot 10 can be reduced.

The seal member 30 seals the outer peripheral surface of the first connection portion 26 with the inner peripheral surface of the inner cylindrical portion 32,
The outer peripheral surface seals the inner peripheral surface of the second connection portion 28, and the inner peripheral surface of the outer cylinder portion seals the outer peripheral surface of the second connection portion 28. Therefore, the sealing performance can be improved.

FIG. 6 shows an electric pot 10 according to a third embodiment. In the third embodiment, the outer cylinder 31 ′ and the inner cylinder 3
In that a seal member 30 'having a small diameter of 2' is applied,
This is different from the second embodiment.

Specifically, the seal member 3 of the third embodiment
Reference numeral 0 'indicates that the outer tubular portion 31' and the inner tubular portion 32 'are integrally formed with the continuous portion 33' as in the second embodiment. The outer diameter of the inner cylindrical portion 32 ′ of the seal member 30 ′ is larger than the inner diameter of the first connecting portion 26 of the inner container 14. The outer cylindrical portion 31 ′ of the seal member 30 ′ has an inner diameter smaller than an outer diameter of the first connecting portion 26 of the inner container 14, and has an outer diameter of the second connecting portion 2 of the hot water supply pump 18.
8 is larger than the inner diameter.

In the assembled state, the seal member 30 '
Seals the inner peripheral surface of the second connecting portion 28 with the outer peripheral surface of the outer cylindrical portion 31 ′, and seals the first connecting portion 26 with the inner peripheral surface thereof.
, And the inner peripheral surface of the first connection portion 26 is sealed by the outer peripheral surface of the inner cylindrical portion 32 ′. Therefore, the second
As in the embodiment, the sealing performance can be improved.

FIG. 7 shows an electric pot 10 according to a fourth embodiment. In the fourth embodiment, the first connecting portion 2 of the inner container 14 is
6 is made larger than the outside diameter of the opening of the second connecting portion 28 of the hot water supply pump 18, and a seal member 29 is provided between the openings.
Only the point that the first embodiment is sealed is different from the first embodiment.

FIG. 8 shows an electric pot 10 according to a fifth embodiment. In the fifth embodiment, the first connecting portion 2 of the inner container 14 is
6 is made larger than the outside diameter of the opening of the second connection portion 28 of the hot water supply pump 18, and a seal member 30
The second embodiment differs from the second embodiment only in that the second embodiment is sealed.

FIG. 9 shows an electric pot 10 according to a sixth embodiment. In the sixth embodiment, the first connecting portion 2 of the inner container 14 is
6 is made larger than the outside diameter of the opening of the second connecting portion 28 of the hot water supply pump 18, and the gap between
It differs from the third embodiment only in that it is sealed by 0 '.

FIG. 10 shows an electric pot 10 according to a seventh embodiment. In the seventh embodiment, the bottom 14 of the inner container 14 is
a is provided with a concave portion 34 recessed in the inner container 14. In the recess 34, a discharge port 25 is provided at a bottom 34a located at an upper part in FIG.
First connecting portion 2 which protrudes outward in the cylindrical shape around 5
6 are provided. The casing 27 of the hot water supply pump 18 has a second connecting portion 28 projecting in a substantially L-shape.
Is provided. In the present embodiment, the openings of the connecting portions 26 and 28 are formed to have substantially the same diameter.

In the seventh embodiment, when assembling the hot water supply pump 18 to the inner container 14, for example,
A cylindrical seal member 35 is externally fitted to the first connection portion 26. Then, the second connecting portion 28 of the hot water supply pump 18 is press-fitted into the internal space of the seal member 35 and externally fitted.

In this assembled state, the sealing member 3
5, the opening end surfaces of the first connection portion 26 and the second connection portion 28 are substantially in contact with each other, and are located in a vertically continuous state, and their outer peripheral surfaces are sealed by the inner peripheral surface of the seal member 35. .

The first connecting portion 26 of the inner container 14 is located inside the inner container 14 by the concave portion 34. Therefore, even if the first connection member and the second connection member are vertically positioned, the amount of protrusion from the bottom 14a of the inner container 14 to the lower end 27a of the casing 27 of the hot water supply pump 18 can be reduced. As a result, the overall height of the electric pot 10 can be reduced as in the above embodiments. Moreover, since the outlet 25 is separated from the heaters 15 and 16, it is possible to prevent the hot water supply pump 18 from sucking the air contained in the boiling hot water. Therefore, the cavitation performance of the hot water supply pump 18 can be improved.

The electric pot 10 of the present invention is not limited to the configuration of each of the above embodiments. For example, as shown in FIG. 11, the configuration of the first embodiment and the configuration of the seventh embodiment may be combined. Specifically, the inner container 14 is provided with a recess 34 similar to that of the seventh embodiment, and the recess 34 is provided with an outlet 25 and a first connection portion 26. The second connection portion 28 of the hot water supply pump 18 may be formed such that the inner diameter of the opening thereof is larger than the outer diameter of the first connection portion 26, and the space therebetween is sealed by a seal member 29. Of course, the configuration shown in the second to sixth embodiments may be combined with the configuration shown in the seventh embodiment. By doing so, the amount of protrusion from the bottom 14a of the inner container 14 to the lower end 27a of the hot water supply pump 18 can be reduced, and the cavitation performance of the hot water supply pump 18 can be improved.

In the first and fourth embodiments, as shown in FIGS. 12 (A) and 12 (B), a protrusion 29a is provided on the inner and outer surfaces of the seal member 29 so as to protrude in a substantially semi-annular shape. You may. Of course, other 2nd Embodiment, 3rd Embodiment,
In the fifth to seventh embodiments, the connection portions 26, 28 in the seal members 30, 30 ', 35
A similar annular projection may be provided on the surface that seals between the two. By doing so, the sealing performance of the sealing member 29 with the connecting portions 26 and 28 is improved.

Further, in the second and fifth embodiments, the inner cylindrical portion 32 of the seal member 30 seals the outer peripheral surface of the first connecting portion 26 or the second connecting portion 28 with its inner peripheral surface, The second connecting portion 28 or the first connecting portion 2
6 is sealed, but its outer diameter is
Alternatively, the inner diameter of the first connecting portion 26 may be smaller than the inner diameter of the first connecting portion 26, and the inner peripheral surface of the second connecting portion 28 or the first connecting portion 26 may not be sealed. That is, the sealing member 30 is
Seals the outer peripheral surface of the second connecting portion 28 or the first connecting portion 26 with the inner peripheral surface of the first connecting portion 2 with the inner peripheral surface of the inner cylindrical portion 32.
6 or the outer peripheral surface of the second connection portion 28 may be sealed.

Similarly, in the third and sixth embodiments, the outer cylindrical portion 31 'of the seal member 30' is connected to the inner peripheral surface of the second connecting portion 28 or the first connecting portion 26 on the outer peripheral surface. Although the outer peripheral surface of the first connecting portion 26 or the second connecting portion 28 was sealed at the inner peripheral surface, the inner diameter was made larger than the outer diameter of the first connecting portion 26 or the second connecting portion 28, 1
The outer peripheral surface of the connection portion 26 or the second connection portion 28 may be configured not to be sealed. That is, the seal member 30 ′ seals the inner peripheral surface of the second connecting portion 28 or the first connecting portion 26 on the outer peripheral surface of the outer cylindrical portion 31 ′,
The inner peripheral surface of the connection portion 26 or the second connection portion 28 may be sealed.

Further, in each of the above-described embodiments, the hot water supply pump 18 employs a horizontal pump for connecting the second connecting portion 28 protruding in an L-shape. However, as shown in FIG. A vertical pump in which the motor 18a and the impeller 18b are arranged vertically and the cylindrical second connection portion 28 is protruded may be applied.

[0043]

As is apparent from the above description, in the electric pot of the present invention, one of the first connection portion of the inner container and the second connection portion of the hot water supply pump has the other connection portion inserted therein. In this state, the space between them is sealed by the seal member, so that the amount of protrusion from the bottom of the inner container to the lower end of the casing of the hot water supply pump can be reduced. As a result, the overall height of the electric pot can be reduced. Furthermore, since the second connection portion does not reduce the cross-sectional area by flattening the flow path, no extra load is applied to the hot water supply pump. Therefore, the function of the hot water supply pump itself can be prevented from being reduced, and the usable period is not shortened.

Further, a cylindrical sealing member is applied, and the outer peripheral surface seals the inner peripheral surface of one connecting portion, and the inner peripheral surface seals the outer peripheral surface of the other connecting portion. . Alternatively, a seal member in which one end of the outer cylinder portion and the inner cylinder portion and one end thereof are integrated in a continuous portion is applied, and the outer peripheral surface of one connecting portion is sealed with the inner peripheral surface of the outer cylinder portion, and the inner cylinder portion is sealed. The inner peripheral surface seals the outer peripheral surface of the other connecting portion, or the outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion seals the inner peripheral surface and the outer peripheral surface of one connecting portion. Is sealed with the inner peripheral surface of the other connecting portion.
Alternatively, the outer peripheral surface of the outer cylindrical portion seals the inner peripheral surface of one connecting portion, and the outer peripheral surface of the inner cylindrical portion seals the inner peripheral surface of the other connecting portion, or the outer peripheral surface of the outer cylindrical portion seals In addition to sealing the inner peripheral surface of the connecting portion, the inner peripheral surface of the outer cylindrical portion and the outer peripheral surface of the inner cylindrical portion seal the outer peripheral surface and the inner peripheral surface of the other connecting portion. Therefore, it is possible to secure a covering area between the seal member and each connection portion, and to sufficiently satisfy the sealing performance.

Alternatively, a concave portion is provided at the bottom of the inner container, and the outlet is provided at the bottom of the concave portion.
Since the first connection portion is provided around the discharge port and protrudes outward in a cylindrical shape, the amount of protrusion from the bottom of the inner container to the lower end of the hot water supply pump is reduced in the same manner as described above. The overall height of the pot can be reduced. In addition, since the outlet is separated from the heater, it is possible to prevent the hot water supply pump from sucking the air contained in the boiling hot water. Therefore, the cavitation performance of the hot water supply pump can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an electric pot.

FIG. 2 is an exploded perspective view of the inner container and the hot water supply pump of the electric pot according to the first embodiment.

FIG. 3 is a sectional view showing an assembled state of the inner container and the hot water supply pump according to the first embodiment.

FIG. 4 is a sectional view showing an assembled state of an inner container and a hot water supply pump according to a second embodiment.

FIG. 5 is a perspective view showing a seal member of a second embodiment.

FIG. 6 is a sectional view showing an assembled state of an inner container and a hot water supply pump according to a third embodiment.

FIG. 7 is a sectional view showing an assembled state of an inner container and a hot water supply pump according to a fourth embodiment.

FIG. 8 is a sectional view showing an assembled state of an inner container and a hot water supply pump according to a fifth embodiment.

FIG. 9 is a sectional view showing an assembled state of an inner container and a hot water supply pump according to a fifth embodiment.

FIG. 10 is a sectional view showing an assembled state of an inner container and a hot water supply pump according to a seventh embodiment.

FIG. 11 is a sectional view showing a modified example of an assembled state of the inner container and the hot water supply pump.

FIG. 12A is a cross-sectional view illustrating a modification of the first embodiment, and FIG. 12B is a cross-sectional view illustrating a modification of the fourth embodiment.

FIG. 13 is a cross-sectional view showing a state in which a hot water supply pump different from each embodiment is applied.

FIG. 14 is a cross-sectional view showing an assembled state of a conventional inner container and a hot water supply pump.

FIG. 15 is a cross-sectional view showing another assembled state of the conventional inner container and the hot water supply pump.

[Explanation of symbols]

10: electric pot, 14: inner container, 14a: bottom, 18 ...
Hot water supply pump, 20 ... discharge port, 21 ... water supply pipe, 24 ... hot water supply switch, 25 ... discharge port, 26 ... first connection part, 27 ... casing, 27a ... lower end part, 28 ... second connection part, 29 ...
Seal member, D1: outer diameter of first connection portion, D2: inner diameter of second connection portion.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadichi Moriyama 1-20-5 Tenma, Kita-ku, Osaka-shi, Osaka Elephant In-House Co., Ltd. F term (reference) 4B055 AA34 BA35 CA11 CB09 CC58 CD61

Claims (6)

[Claims] 1. An electric pot for operating a hot water supply pump by operating a hot water supply switch to discharge hot water in an inner container from a discharge port through a water supply pipe. A first connecting portion protruding outward in a cylindrical shape around the outlet; a second connecting portion provided on a casing of the hot water supply pump; and one of the first connecting portion and the second connecting portion. With the inner diameter of the opening of one of the connecting portions larger than the outer diameter of the opening of one of the other connecting portions, with the other connecting portion inserted into the one connecting portion,
An electric pot characterized in that a space between them is sealed by a seal member. 2. The sealing member has a cylindrical shape, and seals an inner peripheral surface of the one connecting portion with an outer peripheral surface thereof.
The electric pot according to claim 1, wherein the inner peripheral surface seals the outer peripheral surface of the other connecting portion. 3. The seal member has an outer cylindrical portion, an inner cylindrical portion, and one end thereof formed as a continuous portion, and an inner peripheral surface of the outer cylindrical portion defines an outer peripheral surface of the one connecting portion. Along with sealing, the inner peripheral surface of the inner cylindrical portion seals the outer peripheral surface of the other connecting portion, or the outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion inside the one connecting portion. The electric pot according to claim 1, wherein a peripheral surface and an outer peripheral surface are sealed, and an inner peripheral surface of the inner cylindrical portion seals an outer peripheral surface of the other connecting portion. 4. The seal member has a shape in which an outer tube portion, an inner tube portion, and one end thereof are integrated into a continuous portion, and an outer circumferential surface of the outer tube portion defines an inner circumferential surface of the one connection portion. While sealing, the outer peripheral surface of the inner cylindrical portion seals the inner peripheral surface of the other connecting portion, or the outer peripheral surface of the outer cylindrical portion seals the inner peripheral surface of the one connecting portion, and The electric pot according to claim 1, wherein an inner peripheral surface of the cylindrical portion and an outer peripheral surface of the inner cylindrical portion seal an outer peripheral surface and an inner peripheral surface of the other connecting portion. 5. A concave portion which is depressed in the inner container at the bottom of the inner container, the outlet is provided at the bottom of the concave portion, and the outlet protrudes outwardly around the outlet. The electric pot according to claim 1, further comprising a first connection portion. 6. An electric pot for operating a hot water supply pump by operating a hot water supply switch to discharge hot water in an inner container from a discharge port through a water pipe, wherein a concave portion formed in the inner container at the bottom of the inner container. And a discharge port is provided at the bottom of the concave portion, and a first connection portion is provided around the discharge port to protrude outward in a cylindrical shape, and a second connection portion is provided on a casing of the hot water supply pump. An electric pot, wherein openings of the first connection portion and the second connection portion have substantially the same diameter, and the outer peripheral surfaces thereof are sealed with a seal member in a state where these opening end surfaces are substantially in contact with each other.