JPH0685744B2 - Vacuum type electric insulation pot - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vacuum-type electric insulation pot used in general households and the like.

2. Description of the Related Art The structure of a conventional vacuum-type electric insulation pot of this type will be described with reference to FIG. 2. A metallic inner container 41 and an outer container 42 form a vacuum double container having a vacuum space 43. A lid 45 containing a well-known bellows type air pump 44 is placed on the upper part of the vacuum double container, and the pumping pipe is located below the pump.
An inner plug portion 49 provided with a 46, an outlet pipe 47 and an insufflation pipe 48 is closely attached to the upper part of the container, and further, the inner container 41 has a single bottom part 50 which does not form a vacuum heat insulating space with the outer container 42. It is formed of an integral metal plate, and a band-shaped heating element 51 is attached to the outer peripheral portion thereof. In addition, in order to display the liquid volume of the contained liquid,
A transparent display pipe (52) communicating with the inner container (41) via a single bottom portion (50) was erected on one side of the body, and a protective cover (53) was installed from the outside to protect the entire display pipe.

Problems to be Solved by the Invention In such a conventional configuration, if the inner plug portion 49 integrated with the pumping pipe 46 and the outlet pipe 47 is not taken out, the liquid is stored only by opening the lid portion 45. In addition, a large amount of heat is dissipated from the lid 45 located at the top of the container, the heater 51 at the bottom, and the liquid quantity display pipe 52, and as a result, the effect of preventing heat loss of the vacuum double container is significantly impaired. In addition, the liquid quantity display pipe 52 could not be cleaned at all.

The present invention solves such a problem, and the liquid can be contained in the inner container and the inside of the inner container can be easily cleaned, and a lid and a vacuum double container for covering the upper end opening of the vacuum double container can be provided. It is an object of the present invention to provide a vacuum type electric heat-insulating pot capable of preventing heat loss from a heater portion disposed on the bottom surface of the vacuum electric container and enhancing the heat-retaining effect of the vacuum double container.

Means for Solving the Problems In order to solve the above problems, the present invention forms a vacuum double container having an eccentric shaft center with an inner container and an outer container made of metal, and an upper end opening of the vacuum double container. The part is covered with a lid having a heat insulating layer,
A heater section is provided on the bottom surface of the inner container, and a heat insulating layer is provided on the outer side of the heater section. No, and the other end of this pump is projected above the outer container through the thick vacuum space of the vacuum layer between the inner container and the outer container, and a discharge pipe is attached to the tip of the liquid to face the liquid. An ultrasonic oscillator and a receiver for detecting the liquid amount are arranged above the surface, and a device for electrically emitting and displaying the liquid amount is provided on the side surface of the body.

Operation According to the above configuration, the liquid quantity display pipe is eliminated, and the pumping pipe for sucking up the liquid in the inner container is projected above the outer container through the vacuum space between the inner container and the outer container, and the discharge pipe is provided at the tip thereof. Since it is mounted to discharge the liquid, there is no heat loss from these pipes as in the conventional case where the liquid quantity display pipe and the pumping pipe are provided separately. Moreover, the amount of the content liquid is electrically displayed to the outside by ultrasonic waves. Further, since the upper end opening of the vacuum double container without a vacuum layer is covered with a lid having a heat insulating layer, and the heat insulating layer is provided also outside the heater portion arranged on the bottom surface of the vacuum double container, these It is possible to reliably prevent heat loss from the lid and the heater part of the container, and as a result, it is possible to enhance the heat retaining effect of the vacuum double container. Since there is no stopper, it is possible to easily store the liquid in the inner container and clean the inside of the inner container.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.
In FIG. 1, 1 is a vacuum double container, and this vacuum double container 1 connects an inner container 2 and an outer container 3 with an upper plate part 4 and a bottom plate part 5 of the outer container 3, and The space 6 is vacuum-processed. The members forming the vacuum double container 1 are fixed to each other by a method of welding base materials such as 18-8 stainless steel plates, which have a low heat conduction among metals, to each other, and have a bottomed tubular shape as a whole. There is. In addition, a heater portion 9 attached from the bottom surface 7 side of the vacuum double container 1 is housed in the inner container 2 in a hole provided substantially at the center of the double bottom surface 7 of the vacuum double container 1. It is fitted through a packing 11 that prevents the liquid 10 from leaking. The heater portion 9 is formed into a substantially disk shape, and the periphery thereof becomes a heating element 12, a thermostat 13 for controlling the temperature of the liquid 10 is provided inside the central portion, and a thermostat is provided outside the heater portion 9. A heat insulating layer 14 is fixed so as to cover 13. Further, one end of a pumping pipe 15 for sucking up the liquid contained in the inner container 2 is connected near the bottom surface 7 of the vacuum double container 1,
Moreover, the other end of the pumping pipe 15 extends vertically through the vacuum space 6 between the inner container 2 and the outer container 3, projects upward from the upper plate portion 4, and a discharge pipe 16 is provided at the tip thereof.

On the other hand, the upper opening 8 of the vacuum double container 1 has a diameter of at least 80 mm so that a cleaning tool or a hand can be easily inserted in order to easily store the liquid 10 and clean the inner container 2.
Moreover, the vacuum space 6 extends to a position surrounding the upper opening 8 of the vacuum double container 1.

The vacuum double container 1 configured as described above is covered with the upper body 17, the cylindrical side body 18, the lower body 19, the back plate 20, and the display frame 21, and is held via the mounting bracket 22 and the packing 23. ing. A part of the display frame 21 is a liquid crystal
Ten internal volume display portions 24 are fitted, and the amount of the liquid 10 can be confirmed from the outside on the internal volume display portion 24. In addition, a bowl-shaped lid cover 27 fixed to a lower cover 26 of a lid 25 locked to the upper body 17 is attached to the opening 8, and a heat insulating layer is provided in a space between the lid cover 27 and the lower cover 26. 28 are formed. The lid cover 27 is fitted in the opening 8 so that the lid 25 does not hit the opening 8 when the pin 25 is opened by using the pin 29 as a fulcrum, and the tip of the lid cover 27 is formed in order to make the heat insulating layer 28 as thick as possible. It is hung slightly to the side of vessel 2. Further, at the center of the lid cover 27, there is an inflating pipe 30 connected to the space of the inner container 2, and the inflating pipe 30 is a bellows type air pump 31.
Is in communication with. 32 is an ultrasonic oscillator embedded in the lid cover 27, 33 is this receiver, by these
The content of 10 is detected and displayed on the content display 24. The ultrasonic oscillator 32 and the receiver 33 are not limited to the liquid 10 in the inner container 2, but the liquid 10 in the pumping pipe 15 can be exposed to the same action.

If the inner container 2 is passed through the larger one of the vacuum spaces 6 which are slightly eccentric with respect to the outer container 3, the pumping pipe 15 can be constructed without enlarging the body. If the cross section of the pumping pipe 15 is made flat, such an effect can be further enhanced. Further, since the display of the internal volume of the liquid 10 is not performed by the conventional display pipe, there is almost no heat loss. in this case,
It may be easily possible to provide the pumping pipe 15 from the inner lid to the outside of the container in order to only store and clean the liquid 10, but in this case, the heat loss from the pumping pipe 15 is large and the pumping pipe is Since the liquid 10 in 15 cools, the beginning of the discharge of the liquid 10 becomes cold, which is detrimental to the delicious taste of tea or the like.
Needless to say, the electric power required for the internal capacity display portion is smaller than the converted electric power of the heat loss from the liquid pump 15.

In the above embodiment, the liquid contained in the inner container 2
When the lid 25 is opened, the lid 10 can be easily inserted through the wide opening 8 having no inner lid, and the liquid 10 contained in the inner container 2 is efficiently supplied to the heater portion 9 arranged below the inner container 2. Well heated. When the liquid 10 reaches a predetermined temperature, the heater portion 9 is turned on (ON) and turned off (OF) by the thermostat 13.
F) and kept at a constant temperature. Further, the liquid 10 is kept warm with extremely little heat keeping power by the entire side surface of the vacuum double container 1, most of the bottom and the vacuum space 6 around the opening 8. Further, since the pumping pipe 15 passes through the vacuum space 6, the heat loss is smaller. Further, since the heat insulating layer 28 is provided in the opening 8 and the heat insulating layer 14 is provided in the vicinity of the mounting portion of the heater portion 9, heat loss can be further reduced, thereby reducing the heat insulating power. You can

Further, the liquid 10 which has been kept warm is pressurized by the pressure-fed air from the bellows type air pump 31 through the air supply pipe 30, and the liquid 10 is discharged from the discharge pipe 16 through the pumping pipe 15 to the outside.

Further, since the vacuum double container 6 is difficult to manufacture and it cannot be said that the defective rate is necessarily small, by constructing the heater portion 9 separately from the vacuum double container 6 and separating them, they can be separated from each other. Since it can be manufactured, the overall defective rate or amortization cost can be reduced.

EFFECTS OF THE INVENTION As described above, according to the present invention, a pump for pumping up the liquid contained in the inner container without the liquid quantity indicating pipe is provided.
Since it protrudes upward from the upper container through the vacuum space between the inner container and the outer container and a discharge pipe is attached to the tip of the container to discharge liquid, and the internal volume is electrically displayed, As in the case where the liquid quantity display pipe and the pumping pipe are separately provided, the heat loss from these pipes is eliminated, and the upper end opening of the vacuum double container without a vacuum layer has a lid with a heat insulating layer. Since a heat insulating layer is also provided on the heater part that is covered with the heater and that is placed at the bottom of the vacuum double container, heat loss from these lid and heater part can be surely prevented. The heat retaining effect of the double container can be enhanced, and since there is no inner plug part that integrates the pumping pipe as in the conventional case, the liquid can be stored in the inner container and the inside of the inner container can be easily cleaned. It is possible.

[Brief description of drawings]

FIG. 1 is a sectional view of a vacuum type electric heat insulation pot showing an embodiment of the present invention, and FIG. 2 is a vertical sectional view showing a conventional vacuum type electric heat insulation pot. 1 ... Vacuum double container, 2 ... Inner container, 3 ... Outer container, 6
... vacuum space, 7 ... bottom surface, 8 ... opening, 9 ... heater part, 14 ... insulation layer, 15 ... pumping pipe, 16 ... discharging pipe, 18
...... Side body, 24 …… Content display, 27 …… Lid cover, 28 …… Insulation layer, 32 …… Ultrasonic oscillator, 33 …… Receiver.

Claims (1)

[Claims] 1. A vacuum double container having an eccentric shaft center is formed by a metal inner container and an outer container, and an upper end opening of the vacuum double container is covered with a lid having a heat insulating layer, and a bottom surface of the inner container is formed. A heater part is provided on the inner side of the inner container and a heat insulating layer is provided on the outer side thereof, and one end of a pumping pipe for sucking up the liquid in the inner container is exposed to a thick portion of the vacuum layer near the bottom surface of the inner container, The other end of the liquid pipe is made to project above the outer container through a thick vacuum space of the vacuum layer between the inner container and the outer container, and a discharge pipe is attached to the tip thereof to detect the liquid amount above the liquid surface facing the liquid. A vacuum type electric insulation pot equipped with an ultrasonic oscillator and a receiver, and a device for electrically emitting and displaying the liquid amount on the side surface of the body.