JPS5934364B2 - electric heating pot - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement in an electric heating pot.

The conventional pot of this type, which is the object of the improvement of the present invention, is
The diagram will be explained.

1 is a main body, 2 is a pedestal, 3 is a lid, and 4 is a handle.

Reference numeral 5 denotes a vacuum double container (magic bottle) made of glass, heat-resistant synthetic resin, stainless steel, etc., which has a reduced diameter part 6 in the middle with an outer wall and an inner wall in close contact with each other, and a heater 7 installed in the reduced diameter part 6.
is wrapped.

8 is the spout of this pot, 9 is the spout, and 10 is the power cord.

This electric heat-retaining pot heats the beverage stored in the double container 5 with the heater 7, and the heated beverage is kept warm by the double container, but it has the following drawbacks.

That is, since the heater γ heats the beverage inside the double container 5 from the outside through the outer and inner walls, the thermal efficiency during heating is poor.

In addition, since the outer wall and the inner wall of the reduced diameter portion 6 are in close contact with each other and there is no vacuum portion, the heat of the beverage escapes from the reduced diameter portion 6 by heat transfer during keeping warm.

The object of the present invention is to provide an electric heating pot that does not have the above-mentioned drawbacks.

The embodiment shown in FIG. 2 will be explained below.

11 is a main body, and a bottom plate 12 is screwed into the lower part of the main body.

Reference numeral 13 denotes a handle fixed to the main body 11 with screws 14, and an insertion port 16 into which an electric plug 15 is attached is integrally provided at the bottom of the handle.

Reference numeral 17 denotes a vacuum double container made of glass or stainless steel, with a single-walled pocket portion 18 protruding in the shape of a dish at the bottom.
A heater 19 connected to an electric plug 15 is closely arranged on the outer lower surface of the pocket portion 18.

The heater 19 is surrounded by a push plate 20 and a heat insulating ring 21, and the heat insulating ring 21 is coupled to a heat insulating pedestal 22 screwed onto the bottom plate 12.

If the vacuum double container 17 is made of glass, the inner surface is finished with a silver mirror finish, and if it is made of stainless steel, the inner surface is polished. It is composed of double walls.

The vacuum double container 17 has its upper opening 23 connected to the backing 2
The main body 11 is supported by an upper plate 25 via 4.

26 is a spout made of a heat insulating material fitted into the upper opening 23 and has a pouring hole 27.

28 is a spout. 29 is a lid plate with a legitimate child 30;
Its base is attached to the second part of the handle 13 by a spring 31 so that it can be opened and closed.

As described above, in the electric heat-retaining pot of the present invention, the bottom of the vacuum double container 17 is made into a single wall and the protruding dish-shaped pocket portion 18 is integrally formed, and the heater 19 is provided on the external lower surface of the pocket portion 18. are placed closely together, and a heat insulating ring 2 is placed around it.
1, and the heat insulating ring 21 is further supported by a heat insulating pedestal 22.

The entire portion except the pocket portion 18 and the upper opening portion 23 is constructed of a vacuum double wall.

Therefore, when heating the beverage in the vacuum double container 17 with the heater 19, it can be heated with the same thermal efficiency as a normal electric kettle, and the heat loss during keeping warm is the first.
Much less than the traditional electric heat preservation pot in the figure.

In order to confirm the heat retention effect of the electric heat retention pot of the present invention,
A complete magic bottle 1, a pot 2 of the present invention, a conventional pot 3 shown in FIG. 1, and a container 4 whose periphery is covered with a heat insulating material,
When comparing the temperature drop after 6 hours of boiling water at 95℃, the temperature drop of 1.2 and 3℃ is about 10℃, respectively.
, 20°C, 30°C, and 40°C, it was confirmed that the heat retention pot was superior to the conventional electric heating pot shown in Fig. 1.

[Brief explanation of drawings]

FIG. 1: A vertical cross-sectional view of a conventional electric heat-retaining pot. FIG. 2: A vertical cross-sectional view of an embodiment of the present invention. Symbol, 11...Body, 12...Bottom plate,
13... Handle, 14... Screw, 15.
...Electric plug, 16...Insertion port, 17
......Double vacuum container, 18...Pocket portion, 19...Heater, 20...Press plate,
21...Insulation ring, 22...Insulation pedestal, 23...Top opening, 24...Backing, 25...Top plate, 26...Spout, 27...Rika, 28...Spout,
29... Lid plate, 30... legitimate child, 31.
...Spring.

Claims (1)

[Claims] 1. The bottom of the vacuum double container is made into a single wall and a protruding dish-shaped pocket is integrally formed, a heater is placed in close contact with the external lower surface of the pocket, and its periphery is covered with a heat insulating ring, An electric heat-retaining pot characterized in that the heat-insulating ring is supported by a heat-insulating pedestal.