JP5572804B2 - Thermal insulation structure and beverage dispenser having the same - Google Patents

Description

  The present invention relates to a heat insulating structure and a beverage dispenser including the same.

  A container having a heat insulating structure is known for heat insulation and cold preservation (for example, see Patent Document 1). A beer dispenser is known as an apparatus including a container having a heat insulating structure (see, for example, Patent Documents 2 and 3).

Japanese Patent Laid-Open No. 2004-212042 Japanese Patent Laid-Open No. 7-125797 JP 7-280411 A

  The beer dispensers of Patent Literature 2 and Patent Literature 3 include a water tank as a container, and a heat insulating material is disposed outside the water tank. Inside the aquarium, there are disposed a beverage pipe for carrying a beverage and a refrigerant tube through which a low-temperature refrigerant passes, and water is stored, and the beverage tube and the refrigerant tube are immersed in water. Water is cooled by the refrigerant passing through the refrigerant pipe, thereby cooling the beverage in the beverage pipe. A heat source such as a compressor that compresses the refrigerant is disposed below the container. In order to prevent the heat of the heat source from being transmitted to the container, the bottom and the periphery of the container are usually surrounded by a heat insulating material such as urethane foam. A drain pipe for draining water at the time of maintenance of the beverage dispenser is connected to the bottom of the water tank. The drain pipe passes through the heat insulating material and extends downward (compressor side).

By the way, the vacuum heat insulating material excellent in the heat insulation performance is known as a heat insulating material. A vacuum heat insulating material consists of a gas barrier film which covers a core material and a core material as described in patent document 1, for example. The space formed by the film is maintained in a substantially vacuum state, and the core material is disposed in this vacuum atmosphere. The core material is, for example, an inorganic fibrous aggregate.
Instead of the urethane foam described above, it may be possible to insulate the surroundings of the water tank by using a vacuum heat insulating material excellent in heat insulating properties.

  Here, since a member such as a drain pipe is connected to the bottom of the container, it is necessary to provide a hole through which this member passes in the heat insulating material. Therefore, as shown in Patent Document 2 and Patent Document 3, it is conceivable to apply a configuration in which a hole is formed by drilling a heat insulating material and a member is passed through the formed hole to the vacuum heat insulating material. However, if the vacuum heat insulating material is perforated, the airtightness of the space in which the core material is accommodated is lost, and the original heat insulating performance cannot be exhibited. On the other hand, it is also conceivable to use a vacuum heat insulating material in which a hole through which a drain pipe can pass is formed in advance. However, in this case, it is necessary to prepare a dedicated vacuum heat insulating material in which a hole is formed at a position corresponding to the position of the drain pipe, resulting in an increase in manufacturing cost.

  The present invention has been made under such a background, and an object thereof is to provide a heat insulating structure having high heat insulating performance and low cost, and a beverage dispenser including the heat insulating structure.

In order to achieve the above object, the invention according to claim 1 is a rectangular and foldable sheet having a pair of laminate materials and a core material disposed in a decompressed space between the pair of laminate materials. In a heat insulating structure formed by using a plurality of vacuum heat insulating materials, a combination of four vacuum heat insulating materials having a rectangular bottom wall and a side wall rising from one side of the edge of the bottom wall A housing space that can be housed, and an insertion hole for inserting an extending member extending from the inside to the outside of the housing space, and an edge portion of the insertion hole is formed by combining a plurality of vacuum heat insulating materials. It is formed so as to surround the periphery of the member over the entire circumference, and at least a part of the periphery of the insertion hole is formed by overlapping the vacuum heat insulating material, each vacuum heat insulating material is Including the edge, above The edge of the through-hole extends in a predetermined direction and extends in a direction intersecting the predetermined direction with a pair of first end edges arranged with a gap between each other and a gap between them. The heat insulating structure is characterized by being formed by overlapping a pair of second end edges arranged in the thickness direction of the vacuum heat insulating material .

  According to this invention, the accommodation space is formed using the sheet-like vacuum heat insulating material. By using a vacuum heat insulating material, it is excellent in the effect of thermally insulating the accommodation space from the outside, and the heat insulating effect of the heat insulating structure can be enhanced. Moreover, as a result of forming the insertion hole by combining the vacuum heat insulating material, unlike the case of forming the insertion hole by drilling the vacuum heat insulating material, the airtightness inside the vacuum heat insulating material is not lost and is high. Thermal insulation performance can be realized. Furthermore, by making at least a part of the periphery of the insertion hole double, the heat insulation around the insertion hole can be sufficiently increased. And since it is the structure which combines a sheet-like vacuum heat insulating material, the structure which overlaps at least one part of the circumference | surroundings of an insertion hole can be implement | achieved easily. The edge of the insertion hole surrounds the entire periphery of the extending member. Thereby, the heat insulation around a penetration hole can be made still higher.

Moreover, since a heat insulation structure can be realized by folding and using a sheet-like vacuum heat insulating material, that is, a general-purpose vacuum heat insulating material, the manufacturing cost is low. It is not necessary to prepare a dedicated vacuum heat insulating material in which an insertion hole for inserting the extending member is formed in advance, and the manufacturing cost is low.
Each the vacuum insulating material includes an edge portion, the edge of the insertion hole has a first edge portion of the pair arranged with a gap between each other extending in a predetermined direction, the predetermined Since the pair of second end edges extending in a direction intersecting with the direction and arranged with a gap between each other are overlapped in the thickness direction of the vacuum heat insulating material , the following advantages are obtained. is there.

That is, the insertion hole can be easily formed by a simple operation of overlapping the pair of first end edges and the pair of second end edges of the vacuum heat insulating material. In addition, in this case, since the vacuum heat insulating material is overlapped twice, the operation of forming the insertion hole and the operation of overlapping the vacuum heat insulating material around the insertion hole can be performed collectively. Therefore, it is easy to form the heat insulating structure.

The invention according to claim 2 includes the heat insulating structure according to claim 1, the beverage passage in which at least a part is accommodated in the accommodation space and through which the beverage passes, and the compressor disposed below the bottom wall. And a temperature adjusting device for adjusting the temperature of the beverage in the beverage passage using a heat medium passing through the compressor.
According to this invention, the beverage in the beverage passage can be cooled or heated by the temperature adjusting device. Thereby, the drink of a comfortable temperature can be provided to a customer. In addition, when the beverage in the beverage passage is cooled by the temperature adjusting device, the heat from the compressor is blocked by the heat insulating structure, so that the temperature of the beverage in the beverage passage is increased by the heat from the compressor. Can be suppressed. In addition, when the beverage in the beverage passage is heated by the temperature adjustment device, the heat from the compressor is blocked by the heat insulating structure, so that the temperature of the beverage in the beverage passage is inadvertently caused by the heat from the compressor. Fluctuation can be suppressed.

The invention according to claim 3 is the invention according to claim 2 , which is arranged in the accommodation space, accommodates a part of the medium passage through which the heat medium passes and at least a part of the beverage passage, and can store water. The beverage further comprising a box-shaped inner container, wherein the extending member includes a drain pipe connected to the bottom plate of the inner container and extending downward through the insertion hole formed in the bottom wall. It is a dispenser.

  According to the present invention, for example, the medium in the medium passage cools the water, whereby the beverage passage and the beverage in the beverage passage can be cooled. Thereby, a drink can be cooled more efficiently in an inner side container. Further, when the beverage dispenser is maintained, the water in the inner container can be drained by draining the water in the inner container from the drain pipe. Therefore, maintenance of various members in the inner container can be easily performed. By connecting the drain pipe to the bottom plate of the container, the insertion hole is formed on the bottom wall near the compressor that generates heat. However, since the heat insulation performance around the insertion hole is high, the amount of heat transferred from the compressor into the inner container can be extremely reduced.

(A) is a top view of a drink dispenser provided with the heat insulation structure concerning one embodiment of this invention, (b) is a partial sectional view which meets an Ib-Ib line of Drawing 1 (a), and a drink It is a longitudinal cross-sectional view which shows schematic structure of a dispenser. It is sectional drawing for demonstrating the structure of the vacuum heat insulating material with which a 1st heat insulation structure is equipped. (A) is a perspective view shown about a part of 1st heat insulation structure, (b) is a disassembled perspective view of a 1st heat insulation structure, (c) is a perspective view of a 1st heat insulation structure. It is. It is a top view which shows a part of 1st heat insulation structure in a cross section. It is sectional drawing of the principal part which follows the VV line of FIG. It is a disassembled perspective view of the 1st heat insulation structure of one reference form of this invention. It is a top view which shows a part of 1st heat insulation structure of FIG. 6 in a cross section. It is a perspective view of the principal part of another reference form of this invention.

Embodiments of the present invention will be specifically described below with reference to the drawings.
Fig.1 (a) is a top view of a drink dispenser provided with the heat insulation structure which concerns on one Embodiment of this invention. Fig. 1 (b) is a partial cross-sectional view taken along line Ib-Ib in Fig. 1 (a), and is a vertical cross-sectional view showing a schematic configuration of the beverage dispenser. In this embodiment, front and rear, left and right, and top and bottom are referred to when the beverage dispenser 100 is viewed from the front.

With reference to FIG. 1 (a) and FIG.1 (b), the drink dispenser 100 is for cooling drinks, such as beer, and pouring it to the mug 101. FIG. The beverage dispenser 100 includes an outer container 13 and a lid 40.
The outer container 13 is formed using a metal plate. The outer container 13 is formed in a box shape having an open upper surface, and includes a rectangular bottom plate 13a, four side plates 13b rising from four sides of the bottom plate 13a, and four side plates 13b disposed above the bottom plate 13a. And an intermediate plate 20 supported by. The upper ends of the four side plates 13b are bent toward the inside of the outer container 13 to form a square annular flange 13c. A gasket 15 is placed on the flange 13c.

The lid 40 includes a top plate 16 formed using a metal plate, a vacuum heat insulating material 17 fixed to the lower surface of the top plate 16, and a protective plate 14 a fixed to the lower surface of the vacuum heat insulating material 17. . The lid 40 is placed on the outer container 13 so that the lower surface of the protective plate 14a is in surface contact with the gasket 15.
In the outer container 13, the inner container 12, the first heat insulating structure 10, and the second heat insulating structure 11 are disposed on the upper side of the intermediate plate 20.

  The inner container 12 is formed in a box shape having an open upper surface, and can store water. The inner container 12 includes a rectangular bottom plate 12a and four side plates 12b rising from four sides of the bottom plate 12a. A drain pipe 31 as an extending member is connected to the center of the bottom plate 12a. The drain pipe 31 is provided to discharge the water stored in the inner container 12. The drain pipe 31 extends downward from the bottom plate 12 a of the inner container 12, extends through the insertion hole formed in the intermediate plate 20, extends below the intermediate plate 20, and further extends outside the outer container 13. A plug (not shown) is attached to the tip of the drain pipe 31. Normally, a stopper is put on and the stopper is removed when the water in the inner container 12 is drained.

The upper ends of the four side plates 12b are bent toward the inside of the inner container 12 to form a flange portion 12c. An annular protective plate 14b is disposed between the flange portion 12c and the flange portion 13c.
Referring to FIG. 1B, the first heat insulating structure 10 is formed by appropriately bonding a plurality of vacuum heat insulating materials, and forms an accommodation space 41 for accommodating the inner container 12. The first heat insulating structure 10 is in contact with the lower surface of the bottom plate 12a of the inner container 12 and the outer surfaces of the four side plates 12b.

The second heat insulating structure 11 is formed using a foaming material such as urethane foam or polystyrene, and the protective plate 14 b, the inner container 12, the first heat insulating structure 10, the drain pipe 31, the middle plates 20 and 4. The region surrounded by the two side plates 13b is filled.
The beverage dispenser 100 includes a beverage passage 18 through which a beverage passes. The beverage passage 18 includes a supply tube 18a for sending the beverage from a tank (not shown) into the inner container 12, and a beverage coil tube 18b connected to the supply tube 18a. One end of the supply tube 18a is connected to a tank (not shown) and extends upward from the tank. The supply tube 18 a extends upward through the insertion hole formed in the intermediate plate 20 and the groove 11 a formed in the second heat insulating structure 11, and is protected at a position above the first heat insulating structure 10. It extends into the inner container 12 through an insertion hole formed in the plate 14b. One end of a beverage coil tube 18b is connected to the other end of the supply tube 18a.

  The coil tube 18b for drinks is a tube arrange | positioned in the inner side container 12, is extended helically, and is formed cyclically | annularly as a whole. A spout 35 is connected to the other end of the beverage coil tube 18b. With the above configuration, the beverage is fed from the supply tube 18 a through the beverage coil tube 18 b to the spout 35 and poured from the spout 35 to the mug 101.

The beverage dispenser 100 includes a cooling device 36 as a temperature adjusting device for cooling the beverage passing through the beverage coil tube 18b. By providing the cooling device 36, the cooled beverage can be poured into the mug 101 from the spout 35.
The cooling device 36 includes a cooling unit 37 and a refrigerant passage 19 extending from the cooling unit 37. The cooling unit 37 includes a compressor 38 that compresses a refrigerant as a heat medium, a condenser that condenses the refrigerant, an expansion valve that expands the refrigerant, and the like (not shown).

  In the cooling unit 37, the refrigerant is compressed by the compressor 38 so that the refrigerant becomes a high-temperature and high-pressure gas. Further, the refrigerant is condensed (liquefied) by the condenser, and then decompressed by the expansion valve. The refrigerant depressurized by the expansion valve evaporates (vaporizes) in a refrigerant coil tube 19b (described later) of the refrigerant passage 19, thereby absorbing heat and lowering the ambient temperature. The low-pressure refrigerant that has passed through the cooling refrigerant coil tube 19b enters the compressor 38 again, and the above-described process is repeated.

As the refrigerant is compressed by the compressor 38, heat is generated in the compressor 38, and the compressor 38 becomes high temperature. The compressor 38 is arrange | positioned under the bottom plate 12a of the inner container 12, for example.
The refrigerant passage 19 includes a refrigerant supply pipe 19a, a refrigerant coil tube 19b, and a refrigerant return pipe 19c.

  The refrigerant that has been depressurized by the pressure reducing valve passes through the refrigerant supply pipe 19a. One end of the refrigerant supply pipe 19 a is connected to the cooling unit 37 and extends upward from the cooling unit 37. The refrigerant supply pipe 19 a includes an insertion hole formed in the intermediate plate 20, an insertion hole formed in the second heat insulating structure 11, and a refrigerant pipe housing space 44 described later formed in the first heat insulating structure 10. And extends above the inner container 12. The other end of the refrigerant supply pipe 19a is connected to one end of a refrigerant coil tube 19b.

  The coil tube 19b for refrigerant | coolant is a tube arrange | positioned in the inner side container 12, is extended helically, and is formed cyclically | annularly as a whole. The coil tube 19b for refrigerant | coolant is arrange | positioned so that the coil tube 18b for drinks may be surrounded. The refrigerant coil tube 19b functions as an evaporator, and cools the water stored in the inner container 12 as the refrigerant evaporates in the refrigerant coil tube 19b. As a result, the beverage coil tube 18b is cooled, and the beverage in the beverage coil tube 18b is cooled.

One end of a refrigerant return pipe 19c is connected to the other end of the refrigerant coil tube 19b.
The refrigerant return pipe 19 c temporarily extends upward from the refrigerant coil tube 19 b and enters the refrigerant pipe housing space 44. The refrigerant return pipe 19c further extends downward, passes through the insertion hole formed in the second heat insulating structure 11 and the insertion hole formed in the intermediate plate 20, and the other end is connected to the cooling unit 37. ing.

  In addition, a fan 42 for promoting cooling of the beverage coil tube 18b by the cooling device 36 is provided. The water in the inner container 12 is agitated by the fan 42. The fan 42 is supported by the inner container 12 and includes a fan motor 43. The electric wire 34 that supplies power to the fan motor 43 is bundled with the supply tube 18a of the beverage passage 18 and extends below the intermediate plate 20 through the groove 11a of the second heat insulating structure 11 and the like.

Thus, the supply tube 18a and the electric wire 34, which can be arranged at the same temperature as the atmospheric temperature (atmosphere temperature), are arranged so as to pass outside the first heat insulating structure 10, and with respect to surrounding members. The refrigerant supply pipe 19 a and the refrigerant return pipe 19 c that need to be insulated from each other are disposed so as to pass through the inside of the first heat insulation structure 10.
In addition, an escape water pipe 32 is connected to the upper portion of the inner container 12 so that the water level in the inner container 12 does not exceed a certain value. The escape pipe 32 extends to the outside of the outer container 13 through the second heat insulating structure 11.

The above is the schematic configuration of the beverage dispenser 100. Next, the 1st heat insulation structure 10 is demonstrated.
FIG. 2 is a cross-sectional view for explaining the configuration of the vacuum heat insulating material 1 provided in the first heat insulating structure 10. Referring to FIG. 2, the vacuum heat insulating material 1 covers a plate-like core material 21 made of heat-insulating fibers and the like so as to be sandwiched from above and below by a pair of metal laminate materials 22 and 22 having gas barrier properties. Is formed. The core material 21 is disposed in a substantially vacuum space in the metal laminate materials 22, 22 that is decompressed. The metal laminate material 22 is formed by, for example, laminating a film such as nylon as a protective layer on the outer surface side of a metal foil such as aluminum as a gas barrier layer, and laminating a film such as polypropylene as a heat welding layer on the inner surface side of the gas barrier layer. It is.

  The outer peripheral edge portions of the metal laminate materials 22 and 22 are welded together by heat sealing or the like, and a seal portion 1g is formed. The seal portion 1g is a portion where the heat-welded layers of the metal laminate material 22 are heat-welded with each other, and is a portion where the core material 21 does not exist between the metal laminate materials 22 and 22. With the above configuration, a substantially vacuum state is maintained in the space between the metal laminate materials 22 and 22. Some of the seal portions 1g are arranged so as to overlap the core member 21 by being bent.

FIG. 3A is a perspective view showing a part of the first heat insulating structure 10. FIG. 3B is an exploded perspective view of the first heat insulating structure 10. FIG. 3C is a perspective view of the first heat insulating structure 10.
With reference to FIG. 3A, the vacuum heat insulating material 1 of the first heat insulating structure 10 is formed into an L-shape by bending a sheet that is formed in a rectangular shape and bendable as a whole. Do it. The vacuum heat insulating material 1 includes a bottom wall 1a and a side wall 1b rising from the left end of the bottom wall 1a.

The first heat insulating structure 10 further includes a vacuum heat insulating material 2, a vacuum heat insulating material 3, and a vacuum heat insulating material 4.
In addition, since the vacuum heat insulating material in this embodiment has the structure similar to the vacuum heat insulating material 1, about the vacuum heat insulating materials other than the vacuum heat insulating material 1, below, it is mainly about the difference with the vacuum heat insulating material 1. Explained.

The vacuum heat insulating material 2, the vacuum heat insulating material 3, and the vacuum heat insulating material 4 are each formed into an L-shape by bending a rectangular sheet that can be bent as a whole, like the vacuum heat insulating material 1. It is formed into a shape.
The vacuum heat insulating material 2 includes a bottom wall 2a and a side wall 2b rising from the right end of the bottom wall 2a. The vacuum heat insulating material 2 is arranged side by side with the vacuum heat insulating material 1. With respect to the front-rear direction, the length of the vacuum heat insulating material 2 is shorter than that of the vacuum heat insulating material 1.

The vacuum heat insulating material 3 includes a bottom wall 3a and a side wall 3b rising from the front end of the bottom wall 3a. The vacuum heat insulating material 4 includes a bottom wall 4a and a side wall 4b rising from the rear end of the bottom wall 4a.
The vacuum heat insulating material 3 and the vacuum heat insulating material 4 are arrange | positioned along with front and back, and are made into the substantially symmetrical shape forward and backward. Compared with the height of the vacuum heat insulating material 4, the height of the vacuum heat insulating material 3 is made low.

Referring to FIG. 3B, the vacuum heat insulating material 1 and the vacuum heat insulating material 2 are superimposed on the vacuum heat insulating material 3 and the vacuum heat insulating material 4. A vacuum heat insulating material 5 and a vacuum heat insulating material 6 are attached to the first heat insulating structure 10.
The vacuum heat insulating material 5 is formed in a U-shape by bending a sheet that is rectangular and foldable as a whole. The height of the vacuum heat insulating material 5 is substantially the same as the height of the vacuum heat insulating material 3. The vacuum heat insulating material 5 includes a front side wall 5a, a left side wall 5b extending rearward from the left end of the front side wall 5a, and a right side wall 5c extending rearward from the right end of the front side wall 5a.

  The vacuum heat insulating material 6 is formed in a U-shape by bending a sheet that is rectangular and foldable as a whole. The height of the vacuum heat insulating material 6 is substantially the same as the height of the vacuum heat insulating material 4. The vacuum heat insulating material 6 includes a rear side wall 6a, a left side wall 6b extending forward from the left end of the rear side wall 6a, and a right side wall 6c extending forward from the right end of the rear side wall 6a. The vacuum heat insulating material 5 and the vacuum heat insulating material 6 are opposed to each other with the vacuum heat insulating materials 1 to 4 interposed therebetween.

  FIG. 4 is a plan view showing a part of the first heat insulating structure 10 in cross section. As shown in FIG. 3C and FIG. 4, the vacuum heat insulating material 6 is fitted with the vacuum heat insulating material 1, the vacuum heat insulating material 2, and the vacuum heat insulating material 4. Specifically, the rear side wall 6a of the vacuum heat insulating material 6 is disposed behind the side wall 4b of the vacuum heat insulating material 4, and is in surface contact with the side wall 4b. The left side wall 6b of the vacuum heat insulating material 6 is disposed on the left side of the side wall 1b of the vacuum heat insulating material 1, and is in surface contact with the side wall 1b. The right side wall 6c of the vacuum heat insulating material 6 is disposed on the right side of the side wall 2b of the vacuum heat insulating material 2, and is in surface contact with the side wall 2b.

  The vacuum heat insulating material 5 is fitted with the vacuum heat insulating material 3 and the vacuum heat insulating material 6. Specifically, the front side wall 5a of the vacuum heat insulating material 5 is disposed in front of the side wall 3b of the vacuum heat insulating material 3, and is in surface contact with the side wall 3b. The left side wall 5b of the vacuum heat insulating material 5 is disposed on the left side of the left side wall 6b of the vacuum heat insulating material 6, and is in surface contact with the left side wall 6b. The right side wall 5c of the vacuum heat insulating material 5 is disposed on the right side of the right side wall 6c of the vacuum heat insulating material 6, and is in surface contact with the right side wall 6c.

With the above configuration, the accommodation space 41 is formed inside the vacuum heat insulating materials 1 to 4. In the accommodation space 41, the inner container 12 (see FIG. 1) is arranged.
With reference to FIG. 4, the 1st heat insulation structure 10 contains the penetration hole 45 formed of the vacuum heat insulating materials 1-4. The insertion hole 45 is for inserting the drain pipe 31 and is formed by combining the vacuum heat insulating materials 1 to 4.

  Specifically, an end edge portion 1c extending in the front-rear direction of the bottom wall 1a of the vacuum heat insulating material 1 and an end edge portion 2c extending in the front-rear direction of the bottom wall 2a of the vacuum heat insulating material 2 are separated from each other by a predetermined gap A1. Are facing each other. The edge part 1c and the edge part 2c are formed as a pair of first edge parts. Moreover, the edge part 3c extended to the left and right of the bottom wall 3a of the vacuum heat insulating material 3 and the edge part 4c extended to the left and right of the bottom wall 4a of the vacuum heat insulating material 4 are opposed to each other with a predetermined gap A2 therebetween. doing. The edge part 3c and the edge part 4c are formed as a pair of second edge parts. The edge part 1c and the edge part 2c, and the edge part 3c and the edge part 4c are overlapped in the thickness direction of the bottom walls 1a to 4a, and are substantially orthogonal (intersect).

  In plan view, the insertion hole 45 is formed between the end edge 1c and the end edge 2c, and between the end edge 3c and the end edge 4c, and has a rectangular shape. An edge 45a of the insertion hole 45 is formed by the end edges 1c to 4c. The edge 45a surrounds the periphery of the drain pipe 31 over the entire circumference. With this configuration, as shown in FIG. 1, the drain pipe 31 can extend downward from the inside to the outside of the accommodation space 41.

  Referring to FIG. 4, at least a part of the periphery (edge 45a) of insertion hole 45 is formed by double stacking vacuum heat insulating materials. Specifically, the bottom wall 1a of the vacuum heat insulating material 1 and the bottom wall 3a of the vacuum heat insulating material 3 are overlapped, so that a first overlapping portion 46 is formed on the left front side of the insertion hole 45. Yes. Similarly, by overlapping the bottom wall 1a of the vacuum heat insulating material 1 and the bottom wall 4a of the vacuum heat insulating material 4, a second overlapping portion 47 is formed around the left rear side of the insertion hole 45. Yes.

Further, the bottom wall 2 a of the vacuum heat insulating material 2 and the bottom wall 3 a of the vacuum heat insulating material 3 are overlapped, so that a third overlapping portion 48 is formed on the right front side of the insertion hole 45. By overlapping the bottom wall 2 a of the vacuum heat insulating material 2 and the bottom wall 4 a of the vacuum heat insulating material 4, a fourth overlapping portion 49 is formed on the right rear side of the insertion hole 45.
By providing the first to fourth overlapping portions 46 to 49, the heat insulating performance around the insertion hole 45 is sufficiently ensured.

A gap is formed between the front end of the side wall 2 b of the vacuum heat insulating material 2 and the front side wall 5 a of the vacuum heat insulating material 5, and this gap serves as a refrigerant pipe housing space 44. A right side wall 6 c of the vacuum heat insulating material 6 is disposed on the right side of the refrigerant pipe housing space 44.
The bottom wall 10a of the first heat insulating structure 10 having the above-described configuration includes the bottom wall 1a of the vacuum heat insulating material 1, the bottom wall 2a of the vacuum heat insulating material 2, the bottom wall 3a of the vacuum heat insulating material 3, and the vacuum heat insulating material 4. It is formed in a rectangular shape by the bottom wall 4a. An insertion hole 45 is formed in the bottom wall 10a.

  Further, the front side wall of the first heat insulating structure 10 is formed by the side wall 3 b of the vacuum heat insulating material 3. Further, the left side wall of the first heat insulating structure 10 is formed by the side wall 1 b of the vacuum heat insulating material 1. Further, the rear side wall of the first heat insulating structure 10 is formed by the side wall 4 b of the vacuum heat insulating material 4. Further, the right side wall of the first heat insulating structure 10 is formed by the side wall 2 b of the vacuum heat insulating material 2.

Therefore, a side wall 3b as a front side wall of the first heat insulating structure 10, a side wall 1b as a left side wall, 4b as a rear side wall, and a side wall 2b as a right side wall rise from corresponding sides of the four edges of the bottom wall 10a. The housing space 41 is formed by these.
FIG. 5 is a cross-sectional view of a main part taken along line VV in FIG. As shown in FIG. 5, the vacuum heat insulating materials such as the vacuum heat insulating material 2 and the vacuum heat insulating material 3 tend to have a lower heat insulating effect in the seal portion 1g than other portions. However, the vacuum heat insulating material 2 and the vacuum heat insulating material 3 are overlapped by a predetermined dimension. Thereby, as shown by the arrow B1, the heat from the compressor 38 or the like is transmitted over the laminate material 22 of the vacuum heat insulating material 3 and the laminate material 22 of the vacuum heat insulating material 2 over a long distance. Therefore, a desired thermal resistance is obtained by overlapping the vacuum heat insulating material 2 and the vacuum heat insulating material 3 by a predetermined size according to the temperature difference between the inner side and the outer side (compressor 38 side) of the inner container 12. Can do.

  As described above, according to this embodiment, the accommodation space 41 is formed using the sheet-like vacuum heat insulating materials 1 to 4. By using the vacuum heat insulating materials 1-4, it is excellent in the effect which thermally insulates the accommodation space 41 from the outside, and the heat insulation effect of the 1st heat insulation structure 10 can be made high. Moreover, as a result of forming the insertion hole 45 by combining the vacuum heat insulating materials 1 to 4, unlike the case of forming the insertion hole by punching the vacuum heat insulating material, the air tightness inside the vacuum heat insulating materials 1 to 4 is High thermal insulation performance can be realized without being lost.

  Furthermore, by making at least a part of the periphery of the insertion hole 45 (first to fourth overlapping regions 46 to 49) double, the heat insulation around the insertion hole 45 can be sufficiently increased. And since it is the structure which combines the sheet-like vacuum heat insulating materials 1-4, the structure which overlaps at least one part around the penetration hole 45 can be implement | achieved easily. Further, the edge 45a of the insertion hole 45 surrounds the periphery of the drain pipe 31 over the entire circumference. Thereby, the heat insulation around the penetration hole 45 can be made still higher.

Moreover, since the 1st heat insulation structure 10 can be implement | achieved by bend | folding and using a rectangular sheet-like vacuum heat insulating material, ie, a general purpose vacuum heat insulating material, manufacturing cost is cheap. It is not necessary to prepare a dedicated vacuum heat insulating material in which an insertion hole 45 for inserting the drain pipe 31 is formed in advance, and the manufacturing cost is low.
Moreover, the edge part 1c of the vacuum heat insulating material 1 and the edge part 2c of the vacuum heat insulating material 2, and the edge part 3c of the vacuum heat insulating material 3 and the edge part 4c of the vacuum heat insulating material 4 are simply overlapped. Through the operation, the insertion hole 45 can be easily formed. In addition, in this case, since the corresponding vacuum heat insulating materials 1 to 4 are overlapped with each other, the operation of forming the insertion hole 45 and the operation of overlapping the vacuum heat insulating material around the insertion hole 45 are performed. Can be done in a lump. Therefore, the formation work of the 1st heat insulation structure 10 is easy.

  In addition, the beverage in the beverage passage 18 can be cooled by the cooling device 36. Thereby, cold and comfortable temperature beer can be provided to a customer. Further, the heat from the compressor 38 is blocked by the first heat insulating structure 10 and the second heat insulating structure 11. Thereby, it can suppress that the temperature of the drink in the coil tube 18b for drinks rises with the heat from the compressor 38. FIG.

Further, the refrigerant in the refrigerant coil tube 19b cools the beverage in the beverage coil tube 18b through the water stored in the inner container 12. Thereby, in the inner container 12, a drink can be cooled more efficiently.
Further, when the beverage dispenser 100 is maintained, the water in the inner container 12 can be discharged by draining the water in the inner container 12 from the drain pipe 31. Therefore, maintenance of various members in the inner container 12 can be easily performed. By connecting the drain pipe 31 to the bottom plate 12 a of the inner container 12, the insertion hole 45 is formed in the bottom wall 10 a near the compressor 38 that generates heat. However, since the heat insulation performance around the insertion hole 45 is high, the amount of heat transferred from the compressor 38 into the inner container 12 can be extremely reduced.

The beverage dispenser 100 is a relatively small dispenser, in which a compressor 38 that generates heat is disposed directly below the inner container 12, and it is difficult to secure a space for heat insulation. By providing, it can fully insulate between the inner side of the inner side container 12, and the outer side.
In addition, since the first heat insulating structure 10 is formed by bending a plurality of vacuum heat insulating materials 1 to 4, the volume occupied by the seal portion 1g having a relatively weak heat insulating effect can be reduced. The heat insulation effect by can be made higher.

Moreover, the thermal resistance of each vacuum heat insulating material 1-4 can be enlarged by arrange | positioning at least one part of the seal part 1g of each vacuum heat insulating material 1-4 so that it may overlap with the core material 21. FIG. Therefore, the heat insulation effect of the 1st heat insulation structure 10 can be made higher.
Furthermore, by providing the gasket 15 that reduces the movement of air between the outer container 13 and the lid 40, the flow of air in the accommodation space 41 can be suppressed. As a result, the heat insulating effect of the vacuum heat insulating material can be further enhanced as the entire small beverage dispenser 100.

Figure 6 is an exploded perspective view of the first insulating structure 10A one reference embodiment of the present invention. FIG. 7 is a plan view showing a part of the first heat insulating structure 10A in cross section. In the following, differences from the embodiment shown in FIG. 1 to FIG. 5 will be described, and the same components will be denoted by the same reference numerals and detailed description thereof will be omitted.
With reference to FIG. 6 and FIG. 7, in this reference embodiment, each of the vacuum heat insulating materials 1 </ b> A to 4 </ b> A does not have a bottom wall, and the first heat insulation is performed by the two vacuum heat insulating materials 8 and 8 that are overlapped. A bottom wall 10aA of the structure 10A is formed.

Each of the vacuum heat insulating materials 8 and 8 is formed as a predetermined vacuum heat insulating material, and is formed in a rectangular sheet shape in which a dent 8b is formed in one corner 8a on the right rear side, and is arranged so as to be stacked one above the other. Yes. The recessed portion 8b is formed in a straight line and extends so as to be inclined with respect to the rear end edge 8c and the right end edge 8d of the vacuum heat insulating material 8.
Each vacuum heat insulating material 8, 8 is surrounded by the lower end of the vacuum heat insulating material 1A, the lower end of the vacuum heat insulating material 2A, the lower end of the vacuum heat insulating material 3A, and the lower end of the vacuum heat insulating material 4A. The vacuum heat insulating materials 8 and 8 are fixed to the vacuum heat insulating materials 1A to 4A.

  An insertion hole 45A is formed in the first heat insulating structure 10A. The insertion hole 45A has a rear end edge 8c and a right end edge 8d of each vacuum heat insulating material 8, 8 on the inner side surface of the side wall 4b of the vacuum heat insulating material 4A as another vacuum heat insulating material and the inner side surface 2b of the vacuum heat insulating material 2A. It is formed by butting against the side. Thus, a triangular insertion hole 45A is formed on the right rear side of the first heat insulating structure 10A in plan view. The edge 45aA of the insertion hole 45A surrounds the drain pipe 31 over the entire circumference.

The drain pipe 31 passing through the insertion hole 45 </ b> A is connected to the bottom plate 12 a of the inner container 12 at a position immediately above the upper vacuum heat insulating material 8. 45 A of insertion holes are arrange | positioned so that it may not overlap with the compressor 38 in planar view.
According to this reference embodiment, the edge portions 8c and 8d of the vacuum heat insulating materials 8 and 8 are simply matched with the inner side surface of the side wall 4b of the vacuum heat insulating material 4A and the inner side surface of the side wall 2b of the vacuum heat insulating material 2A. The insertion hole 45A can be easily formed by the work.

  The operation of forming the dent 8b at one corner 8a of each vacuum heat insulating material 8, 8 is, for example, a work of crushing one corner of the rectangular vacuum heat insulating material, and the laminate materials 22, 22 of each vacuum heat insulating material 8, 8 are used. There is no need to make a hole in it. Therefore, the operation | work which perforates each vacuum heat insulating material 8 and 8 is unnecessary, and the heat insulation performance of each vacuum heat insulating material 8 and 8 does not fall. In addition, you may use the vacuum heat insulating material by which the dent part was previously formed in one corner. Unlike the vacuum heat insulating material in which the insertion hole is formed in advance, the vacuum heat insulating material in which the dent portion is formed in one corner in advance has high versatility and is easily available at low cost.

In addition, as shown in FIG. 8, while forming the vacuum heat insulating material 1A and the upper vacuum heat insulating material 8 with one vacuum heat insulating material, the vacuum heat insulating material 3A and the lower vacuum heat insulating material 8 are formed with one vacuum heat insulating material. It may be formed.
The present invention is not limited to the contents of the above embodiments, and various modifications can be made within the scope of the claims.

For example, the entire beverage passage 18 may be accommodated in the inner container 12. In this case, the beverage tank is arranged in the inner container 12. Moreover, although the drain pipe 31 was illustrated as an example of the extending member, members other than the drain pipe 31 may be inserted into the insertion hole.
For example, although it was set as the structure which cools the drink in the coil tube 18b for drinks using the cooling device 36, it is not limited to this. Instead of the cooling device 36, a configuration in which the beverage in the beverage coil tube 18b is heated may be employed. In this case, for example, by supplying the high-temperature and high-pressure refrigerant compressed by the compressor 38 to the refrigerant coil tube 19b, the beverage coil tube 18b and the beverage via the water (hot water) stored in the inner container 12 are supplied. The beverage in the coil tube 18b can be heated.

  When the beverage in the beverage coil tube 18b is heated, the temperature of the beverage in the beverage coil tube 18b is reduced by the heat from the compressor 38 being blocked by the first and second heat insulating structures. It is possible to suppress inadvertent fluctuation due to the heat from 38.

1-4 Vacuum heat insulating material 1A-4A Vacuum heat insulating material 1b, 2b Side wall 3b, 4b Side wall 1c, 2c Edge part (a pair of first edge parts)
3c, 4c edge (a pair of second edges)
8 Vacuum insulation (predetermined vacuum insulation)
8a One corner 8b Recessed part 8c Rear end edge 8d Right end edge 10a, 10aA Bottom wall 12 Inner container (containment)
12a Bottom plate 18 Beverage passage 19 Refrigerant passage (medium passage)
21 Core material 22 Laminating material 31 Drain pipe (extension member)
36 Cooling device (temperature adjustment device)
38 Compressor 41 Storage Space 45, 45A Insertion Hole 45a, 45aA Edge of Insertion Hole 100 Beverage Dispenser A1, A2 Gap

Claims (3)

In a heat insulating structure having a pair of laminate materials and a core material arranged in a decompressed space between the pair of laminate materials, and formed using a plurality of rectangular and foldable sheet-like vacuum heat insulating materials,
A rectangular bottom wall;
An accommodation space that is formed by combining four vacuum heat insulating materials having side walls that rise from one side of the edge of the bottom wall, and that can accommodate an accommodation;
An insertion hole for inserting an extending member extending outward from the inside of the housing space,
The edge of the insertion hole is formed so as to surround the entire periphery of the extending member by combining a plurality of vacuum heat insulating materials,
At least a part of the periphery of the insertion hole is formed by overlapping the vacuum heat insulating material ,
Each of the vacuum insulation materials includes an edge portion,
An edge of the insertion hole extends in a predetermined direction and extends in a direction intersecting the predetermined direction with a pair of first end edges arranged with a gap between each other and a gap between them. And a pair of second end edges arranged in a stacked manner in the thickness direction of the vacuum heat insulating material . A heat insulating structure according to claim 1 ;
A beverage passage that is at least partially housed in the housing space and through which the beverage passes;
A temperature adjusting device that includes a compressor disposed below the bottom wall, and that adjusts the temperature of the beverage in the beverage path using a heat medium passing through the compressor;
A beverage dispenser comprising: According to claim 2, disposed in the housing space, further comprising at least a portion accommodating a box-shaped inner container which can store water and a portion of the beverage passage of the medium passages the heat medium passes ,
The extension member includes a drain pipe connected to the bottom plate of the inner container and extending downward through the insertion hole formed in the bottom wall.

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