JPS5839149Y2 - vacuum insulated jar - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a vacuum insulated bottle with a heater sealed inside.

The vacuum insulated bottles used in thermos bottles have a vacuum between the inner and outer bottles, and a plating layer is formed on the inner and outer walls.
Conventionally, it was considered impossible to encapsulate a heater in the vacuum space.

The purpose of the present invention is to provide a vacuum insulated bottle with a heater sealed inside, and an embodiment thereof will be explained below based on the attached drawings. Inside, a vacuum insulated bottle 3 consisting of a double glass bottle with an inner 4 and an outer bottle 5 and a heater 9 disposed at the bottom of a vacuum space 7 between the double glass bottles is housed, and an outer case 1 is also housed.
A thermos flask is shown in which a bottom member 2 for supporting a vacuum insulated bottle 3 is attached to the lower part of the double glass bottle. The liquid W contained in the bottle 3 can be humidified.

Note that an upper structure (not shown) such as a spout member and a stopper is provided at the upper part of the outer case 1.

A vacuum space 7 is formed between the double glass bottles of the vacuum insulated bottle 3, and a ring-shaped maturo is placed in the lower part of the space 7.

This matturo serves as a spacer between the inner bottle 4 and the outer bottle 5, and the matturo divides the space 7 between the double glass bottles into a mat inner chamber 7a and a mat outer chamber 7b.

Note that Matsutoro is made of an insulating material such as asbestos.

A heater 9 attached to a heat receiving plate 11 is disposed in the mat inner chamber 7a of the space 7.

This heater 9 is fixed by adhering the upper surface of the heat receiving plate 11 to the bottom outer surface of the inner bottle 4.

The node wire 10 of the heater 9 is led outward through a chip 15 formed at the center of the bottom of the outer bottle 5.

Note that a positive temperature coefficient thermistor 12 whose electrical resistance changes depending on the temperature change of the liquid W in the vacuum insulated bottle 3 is connected to the heater 9.

A heat reflecting material 13 such as aluminum foil is attached to the upper surface of the outer bottle 5 in the mat inner chamber 7a by means of adhesion, welding, or the like.

Note that a hole 13a is formed in the center of the heat reflecting material 13 to allow the heater lead wire 10 to be inserted therethrough.

A plating layer 14 is formed on the inner wall surface (the outer surface of the inner bottle 4 and the inner surface of the outer bottle 5) of the mat outer chamber 7b of the space 7.

This plating layer 14 is plated by injecting and discharging a plating liquid from an air venting tip 16 formed on the lower outer side of the outer bottle 5 when forming the vacuum insulated bottle 3, as will be described later.

It should be noted that the air venting chip 16 formed on the outer bottle 5 is formed further outward than the placement position of the maturo.

The bottom member 2 includes a bottom plate 21 having a rising wall 22 on its outer periphery and a medium screw 23 screwed into the center of the bottom wall 21. It is attached so as to support the vacuum insulation paper 3 from below by screwing it into a bottom flap 20 attached to the inner surface of the lower end.

A plug insertion port 24 is formed in the rising wall 22 of the bottom plate 21, and the heater lead wire 10 is inserted into the plug insertion port 24.
Terminal bar 25.25 is installed.

Next, the method for forming the vacuum insulating paper 3 will be explained with reference to FIGS. 2A and B. First, as shown in FIG. 2A, the inner bottle 4 is
and the outer bottle 5 are molded separately.

The outer bottle 5 is divided into an upper bottle 5a and a lower bottle 5b, and the lower bottle 5b has a tip cylinder 15a for passing the heater lead wire 10 through it and a tip cylinder for air venting in the center of the bottom of the lower bottle 5b. 16a.

Then, a heat receiving plate 11 to which a heater 9 is attached is adhered to the outer surface of the bottom of the inner bottle 4, and a ring-shaped maturo is further arranged so as to surround the heater 9.

At that time, if you glue the top surface of the maturo to the outer surface of the bottom of the inner bottle 4 and also apply adhesive to the bottom surface of the maturo, it will be easier to assemble the double glass bottle. It is possible to prevent it from flowing into the mat inner chamber 7a.

A heat reflecting plate 13 such as aluminum foil is attached to the bottom of the lower bottle 5b of the outer bottle 5.

Next, the upper bottle 5a and the lower side @5b of the outer bottle 5 are respectively placed on the inner bottle 4 from above and below. Outer bottle lower bottle 5
The upper ends of the glass bottles b are joined together by heating and melting to form a double glass bottle as shown in FIG. 2B.

At this time, the heater lead wire 10 is guided downward through the hole 13a of the heat reflecting plate 13 and the tip cylinder 15a formed at the center of the bottom of the lower outer bottle 5b.

Next, a plating solution flows in from the chip cylinder 16a for air venting to adhere the plating solution to the entire inner wall of the mat outer chamber 7b, and the excess plating solution is discharged from the chip hole 16a to remove the plating layer 14. Form.

It should be noted that the plating solution flowing into the mat outer chamber 7b is blocked by the matturo, so that it does not flow into the mat inner chamber 7a.

Subsequently, a vacuum suction device is connected to the tip tubes 15 a and 16 a to extract the air in the mat inner chamber 7 a and the mat outer chamber 7 b, and at the same time, the tip tubes 15 a are removed.

16a are heated and melted and sealed (reference numerals 15 and 16) to produce the vacuum insulation paper 3.

In the thermos using this vacuum insulating paper 3, if the heater 9 is energized, the liquid W contained in the vacuum insulating paper 3 can be maintained at a constant high temperature.

That is, when the liquid W in the vacuum insulated bottle 3 falls below a predetermined temperature, the thermistor 12 senses it and energizes the heater 9 to cool the liquid W.
When the liquid W reaches a predetermined temperature, the thermistor 1
2 senses this and acts to interrupt the electrical heating by the heater 9.

Note that when the heater 9 is energized, the inside of the mat inner chamber 7a becomes high in temperature due to the heat of the heater 9, but since the heat reflecting plate 13 is provided at the inner bottom of the outer bottle 5, the heat is effectively utilized. The heat is not sufficiently transmitted to the bottom member 2 in the lower part, so that the bottom member 2 is not damaged.

FIG. 3 shows another embodiment of the invention.

This vacuum insulation paper has a cylindrical chamber 26 protruding from the bottom of the outer bottle 5 and a heat shielding mat 27 loaded therein, and a spring 28 is installed on the mat 27 so that the spring 28 is activated. The heater 9 is pressed into contact with the bottom of the inner bottle 4, and the other structure is the same as that of the vacuum insulation paper shown in FIG.

Next, to explain the effects of the present invention, the vacuum insulation paper of the present invention has the following effects.

(1) Since the heater 9 is placed between the inner bottle 4 and the outer bottle 5,
When the temperature of the object contained in the bottle drops, it can be heated appropriately, and in addition to the same heat-retaining power as a conventional thermos flask, the heat-retaining power is improved by the heat generated by the built-in heater.

(2) Since the space 7 between the inner and outer bottles is divided into two independent chambers 7a and 7b by the ring-shaped matturo, the plating solution does not enter the mat inner chamber 7a where the heater 9 is to be accommodated. This can prevent the insulation of the heater 9 from deteriorating and the formation of a plating layer on the outer surface of the inner bottle.

(3) Since the mat inner chamber 7a and the mat outer chamber 7b are vacuum-sealed via separate chips 15 and 16, each chamber 7a and 7b can be evacuated smoothly.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the lower part of a thermos bottle using a vacuum insulated bottle according to an embodiment of the present invention, and Fig. 2 A and B are respectively
An explanatory diagram showing a method of forming the vacuum insulated bottle used in the thermos shown in the figure, and FIG. 3 is a vertical sectional view of the lower part of the vacuum insulated bottle according to another embodiment of the present invention. 2...Bottom member, 3...Vacuum insulation bottle, 4
...Inner bottle, 5...Outer bottle, 6...
・Mat, 7... Blank space, 7a... Mat inner chamber, 7b... Mat outer chamber, 9...
...Heater, 10...Lead wire, 13...
...Heat reflective material, 14...Plating, 15.16.
...Tip.

Claims (1)

[Scope of utility model registration request] A ring-shaped matsutoro having a height that touches both walls of the inner bottle 4 and outer bottle 5 is placed in the lower part of the space 7 between the inner bottle 4 and the outer bottle 5, so that the space 7 is covered with the inside of the mat. Chamber 7a and mat outer chamber 7
On the other hand, a heater 9 is disposed in the mat inner chamber 7a in contact with the wall surface of the inner bottle 4, and its lead wire 10 is pulled out from the heater wire sealing chip 15, and the mat outer chamber 7b is partitioned into the mat inner chamber 7a. A plating layer 14 is formed on the wall surface of the mat inner chamber 7a and the mat outer chamber 7b.
A vacuum insulated bottle characterized in that the bottle is vacuum sealed by the heater wire sealing tip 15 and the plating solution pouring tip 16.