JPS6318341Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to the improvement of a thermal water bottle for use at home or outdoors, and by using a thermal insulation case made of a vacuum insulation board, it can be made smaller and more compact. This invention relates to a water bottle with improved heat retention performance and portability.

(Prior Art) As heat-retaining water bottles, various types of heat-insulating structures have been provided. For example, water bottles made of plastic or metal whose exterior is covered with a foam insulation material such as urethane, or thermos bottles whose exterior is covered with a cushioning material are widely used. There is.

However, in the case of the former type of thermal water bottles that use foam insulation materials, etc., the required heat retention cannot be achieved unless the insulation material is thick enough, and the water bottle itself inevitably becomes large. This is very inconvenient for mobile phones.

On the other hand, even in the latter type of thermos-type water bottles, almost all of them have a cylindrical shape due to the manufacturing technology of thermos flasks, and it is difficult to make the shape into a thin rectangular parallelepiped. Therefore, it is difficult to fit into a bag or the like, and it is extremely inconvenient to carry. In addition, a cushioning material is required to protect the bottle, which not only increases the external size significantly, but also has the disadvantage that it is easily damaged if handled roughly.

(Problems to be solved by the invention) This invention solves the above-mentioned problems with this type of thermal water bottle, namely, those using insulation materials have poor heat retention performance and are large and inconvenient to handle. thing,
Almost all thermos bottles are cylindrical,
This product aims to solve problems such as being difficult to fit into a bag and having poor portability.It is a thin, so-called "book type" product that fits easily in a bag, etc., and has a simple structure and can be manufactured at low cost. Moreover, the purpose is to provide a water bottle that is durable and has excellent heat retention.

(Means for solving the problem) The present invention is formed from a flat vacuum insulation plate with a honeycomb-type two-stage spacer or a cross-shaped two-stage spacer sandwiched between an outer tank plate and an inner tank plate. a thin rectangular parallelepiped heat insulation case with an inner cylinder insertion opening open on one side; The basic structure of the invention is a thin rectangular parallelepiped-shaped inner cylinder.

(Function) The vacuum insulation board constituting the heat insulation case is supported by a honeycomb-type two-stage spacer or a cross-shaped two-stage spacer, and even if it is flat, it will not be deformed by external pressure.

Additionally, since the heat transfer area of the spacer is reduced at the point where the two spacers overlap, the heat transfer resistance of the spacer increases, resulting in a significant reduction in heat transfer (heat loss) through the spacer.

When the inner cylinder is inserted into the heat insulation case through the inner cylinder insertion opening, most of the outer surface of the inner cylinder is kept warm by the vacuum insulation of the heat insulation case, thereby preventing heat transfer loss. Furthermore, the side wall of the inner cylinder on the sprue side is formed of a heat insulating member, so that even without the heat insulation provided by the heat insulating case, heat transfer loss is extremely small.

Furthermore, when the inner cylinder is completely pushed into the thermal insulation case, the heat insulating member on the sprue side of the inner cylinder comes into close contact with the inner circumferential surface of the inner cylinder insertion opening of the thermal insulation case, and there is no space between the inner cylinder and the thermal insulation case. This means that the flow of air into the void is blocked.

(Examples) Hereinafter, details will be explained based on each example of the present invention shown in FIGS. 1 and 2.

It should be noted that the present invention is not limited to the configurations of the embodiments, but may be modified as appropriate within the scope of the invention.

FIG. 1 is a partially cut-away perspective view of a water bottle according to the present invention, and FIG. 2 is a partially cut-away perspective view showing another embodiment of the heat-retaining case.

The water bottle of this embodiment has a thin rectangular parallelepiped-shaped heat-retaining case 9 with one side open, which is formed by a vacuum insulation plate 5.
and an inner tube 10 made of plastic or the like to be inserted into the inner tube.

The heat insulation case 9 is made of an aluminum outer layer plate 2 with a thickness of 1.0 mm and stainless steel (SUS-304) with a thickness of 0.4 mm.
A vacuum heat insulating plate 5 is formed between the inner layer plate 3 and the vacuum heat insulating plate 5, which is constructed by clamping a two-stage combination of crosspiece-shaped spacers 4a' and 4b' made of plastic with low thermal conductivity. Moreover, the end of the vacuum insulation board 5 is formed into an epoxy resin edge frame 1 having a constant wall thickness and formed into a rectangular shape.
1, and an inner cylinder insertion opening 12 is formed by the edge frame body 11.

The external thickness of the vacuum insulation board 5 is selected to be 10 mm, and the internal vacuum degree is approximately 10 ^-5 ~
It is held at 10 ^-7 Torr.

Further, in the vacuum heat insulating board 5, an aluminum plate is used for the outer layer plate 2 and a stainless steel plate is used for the inner layer plate 3, but polycarbonate or the like may be used for the inner layer plate 3, or - Both outer layer plates may be made of polycarbonate or the like. When polycarbonate is used for the inner layer plate 3, the inner layer plate 3 and the edge frame body 1
1 can be integrated with the inner cylinder 1, which can completely prevent air leakage from this part.
There is an advantage that the heat insulating member 13 of 0 and the edge frame body 11 are in contact with the same material, and the airtightness is further improved.

The inner cylinder 10 to be inserted into the heat insulating case 9 is formed by pressing a stainless steel plate into the shape shown in FIG. There is. Further, on one side of the inner cylinder 10, a thick heat insulating member 13 having a sprue 6 formed therein is disposed.

The vertical width of the inner cylinder 10 is determined so that when the inner box 2 is inserted into the heat-insulating case 9, its outer end surface is approximately flush with the side edge of the heat-insulating case 9. When the tube 10 is fitted to a predetermined position, the inner tube insertion opening 12 is almost completely closed by the heat insulating member 13 and is locked so that it cannot easily come out of the heat insulating case 9.

With this configuration, the inner tube 10 can be replaced as appropriate, and if thermal insulation or cold storage is not required, it is also possible to remove the thermal insulation case 9 and use only the inner tube as a water bottle. .

FIG. 2 shows another embodiment of the heat insulation case 9. The heat insulation case 9 includes an aluminum outer layer plate 2 with a thickness of 1.0 mm that has been formed into a predetermined shape by press processing, and an inner layer plate 3 made of stainless steel (SUS-304) with a thickness of 0.4 mm that has been similarly formed. Between,
Plastic honeycomb type two-stage spacer 4
It is formed by a vacuum heat insulating plate 5 formed by sandwiching parts a and 4b, and is formed into a thin rectangular parallelepiped-shaped cylinder with one side open.

(Effects of the Invention) Since the present invention has the above-described configuration, it has many superior features as described below compared to the conventional heat-retaining water bottle of this type.

(1) Since the heat insulating case 9 is formed of the vacuum heat insulating plate 5, the desired heat retaining property can be obtained even with an extremely thin heat insulating layer, and the water bottle can be significantly downsized.

According to the results of the heat retention performance test, when the inner volume and heat retention performance of the water bottle are the same, the external dimensions of the water bottle according to the present invention are approximately 55 to 65% of those of conventional water bottles of this type. External dimensions are significantly reduced. Further, when the internal volume and external dimensions of the water bottle are kept constant, the water bottle according to the present invention has approximately twice the heat retention performance as compared to the conventional water bottle. In other words, it takes about 5 hours for the temperature of the contents of the 80°C water bottle to drop to 60°C with the present invention, whereas it takes about 2.5 hours with the conventional heat-retaining water bottle.
The water bottle according to the present invention has significantly improved heat retention performance.

(2) Since the vacuum insulation board 5 is used, the shape of the water bottle can be made into a compact, thin rectangular parallelepiped shape, which is not only convenient to carry, but also extremely easy to store when carried around in a bag etc. It becomes easy.

(3) The vacuum insulation board 5 forming the thermal insulation case 9 has a honeycomb-type two-stage spacer or a cross-shaped two-stage spacer inserted between the inner tank board 3 and the outer tank board 2, so it is not affected by external pressure. The inner and outer tank plates will not be deformed. Furthermore, since the spacers 4a and 4b are stacked in two stages, the heat transfer area is reduced at the abutting portions of the upper and lower spacers, and heat loss through the spacers is significantly reduced.

(4) Compared to the conventional thermos-type water bottle, the structure is simple and strong, there is no risk of breakage, and the manufacturing cost can be significantly reduced.

As mentioned above, the present invention has excellent practical utility.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a heat-retaining water bottle according to the present invention. FIG. 2 is a partially cutaway perspective view showing a part of a second embodiment of the present invention. 2... Outer layer board, 3... Inner layer board, 4a, 4b...
Honeycomb spacer, 4a', 4b'...piece spacer, 5...vacuum insulation board, 6...spout, 7...faucet, 9...thermal insulation case, 10...inner cylinder, 11...
Edge frame body, 12... Inner cylinder insertion port, 13... Heat insulation member.

Claims (1)

[Scope of utility model registration request] It is formed from a flat vacuum insulation board 5 with honeycomb-type two-stage spacers 4a, 4b or cross-shaped two-stage spacers 4a', 4b' clamped between the outer layer board 2 and the inner layer board 3, and one side thereof. a thin rectangular parallelepiped-shaped heat insulation case 9 equipped with an inner cylinder insertion opening 12 that is open to the inner cylinder; A water bottle composed of a thin rectangular parallelepiped-shaped inner cylinder 10 having a diameter of 13.