JP6718697B2 - Beverage server - Google Patents

Description

The present invention relates to a beverage server that cools beverages.

Various technologies are known as the technology related to the beverage server. Japanese Unexamined Patent Application Publication No. 2011-141071 describes a beverage dispenser including a beverage pipe through which a beverage circulates and a container that stores cooling water into which the beverage pipe is immersed. The beverage dispenser includes a box-shaped first heat insulating structure and a box-shaped second heat insulating structure located outside the first heat insulating structure. The first heat insulating structure is formed by laminating a plurality of vacuum heat insulating materials, and the second heat insulating structure is formed of a foamable material. In addition, a through hole for passing a drainage pipe is formed on the bottom surface of the beverage dispenser.

JP, 2011-141071, A

In the beverage dispenser described above, the through hole is formed in the bottom surface of the container. When the through hole is formed in the bottom surface portion, a hole is also opened in the heat insulating material, so that there is a concern that the heat insulating property is deteriorated particularly in the bottom surface portion. It is conceivable that the temperature of the cooling liquid in which the beverage pipe is immersed rises as the heat insulating property decreases.

It is an object of the present invention to provide a beverage server that can suppress the temperature rise of the cooling liquid in which the beverage pipe is immersed.

A beverage server according to the present invention includes a cooling liquid tank that stores a cooling liquid for cooling a beverage and has a side surface portion and a bottom surface portion, and a beverage pipe that is immersed in the cooling liquid and through which the beverage passes. That is, a hole is formed in the bottom surface portion, a vacuum heat insulating material provided at least on the side surface portion, a portion outside the vacuum heat insulating material on the side surface portion, and a foam heat insulating material provided on the bottom surface portion. , And the hole penetrates the foam heat insulating material, and the thickness of the foam heat insulating material at the bottom surface portion is thicker than the thickness of the foam heat insulating material at the side surface portion.

Since this beverage server is provided with the vacuum heat insulating material on at least the side surface portion, it is possible to ensure the heat insulating property on the side surface portion. Further, since the thickness of the foam heat insulating material provided on the bottom surface portion where the hole is formed is thicker than the thickness of the foam heat insulating material provided on the side surface portion, it is possible to ensure the heat insulating property at the bottom surface portion. In this way, even if the hole is formed in the bottom surface portion, the heat insulation property in the bottom surface portion can be ensured, so that the decrease in heat insulation property can be suppressed. Therefore, since it is possible to secure the heat insulating properties in the side surface portion and the bottom surface portion of the cooling liquid tank, it is possible to suppress the temperature rise of the cooling liquid in which the beverage pipe is immersed.

Further, the bottom surface portion may have a recess extending from the one side surface portion to the hole portion. By the way, it is conceivable that the wiring of the electric equipment of the beverage server is passed through the hole formed in the bottom surface. Therefore, as described above, when the concave portion extending from the one side surface portion to the hole portion is formed, the wiring passing through the hole portion can be guided to the side surface portion through the concave portion. You can prevent it from jumping downward. Further, as described above, by making the thickness of the foamed heat insulating material at the bottom portion thick, the above-mentioned recess can be formed in the foamed heat insulating material.

Further, a discharge pipe for discharging the cooling liquid from the cooling liquid tank may be further provided, and the discharge pipe may be embedded in the foamed heat insulating material. In this case, since the cooling liquid discharge pipe is embedded in the foamed heat insulating material, the heat insulating property of the discharge pipe can be improved. Therefore, the heat transferred from the discharge pipe into the cooling liquid tank can be blocked more reliably, so that the temperature rise of the cooling liquid in the cooling liquid tank can be suppressed more reliably.

Moreover, you may further provide the wiring penetrated by a through-hole. In this way, the wiring can be passed through the through hole formed on the bottom surface.

Further, the beverage pipe may be removable above the cooling liquid tank. In this case, the beverage pipe is removed above the coolant bath. Therefore, even if the wiring of the electric device of the beverage server is passed through the through hole of the bottom portion, the wiring can be prevented from being an obstacle when the beverage pipe is attached and detached.

ADVANTAGE OF THE INVENTION According to this invention, the temperature rise of the cooling liquid with which a drink pipe is immersed can be suppressed.

It is a figure which shows the structure of the drink server which concerns on embodiment. It is a figure which shows the cross section of the cooling liquid tank in the drink server of FIG. It is a figure which shows the vertical cross section of the side part and bottom face part of a cooling liquid tank. It is a perspective view which shows the state which made the bottom face part of the cooling liquid tank up. It is a perspective view which shows the state which adheres a vacuum heat insulating material to a water tank. It is a perspective view which shows the state after bonding a vacuum heat insulating material to the water tank. It is a perspective view which shows the state after covering the vacuum heat insulating material of FIG. 6 with a soft bag.

Hereinafter, a beverage server according to the embodiment will be described with reference to the drawings. In the following description, the same or corresponding elements will be denoted by the same reference symbols, without redundant description.

FIG. 1 shows the configuration of a beverage server 1 according to the embodiment. The beverage server 1 is, for example, a device provided in a restaurant and dispenses a beverage from the currant 2 according to a customer's order or the like. Beverages also include alcoholic beverages such as beer and Happoshu, and alcohol-free beverages. In this embodiment, an example in which the beverage server 1 provides beer will be described.

For example, a beer hose is connected to the beverage server 1, and beer liquid is supplied from the beer hose into the beverage server 1. The beverage server 1 cools the supplied beer liquid. For example, the beverage server 1 is a rectangular parallelepiped electric cooling type instant cooling type server. The beer liquid cooled by the beverage server 1 is poured out from the currant 2 when the operation lever 2a of the currant 2 is pulled.

The beverage server 1 is provided with the above-mentioned curran 2 and a rectangular parallelepiped casing 3 to which the curran 2 is attached as an external configuration. The housing 3 is, for example, a SUS material that forms an exterior material of the beverage server 1. Inside the housing 3, a rectangular parallelepiped cooling liquid tank 10 that stores the cooling liquid W, a beer coil (beverage pipe) 4 that is immersed in the cooling liquid W and is formed in a spiral shape, and the cooling liquid W are stored. A refrigeration cycle device 5 for cooling is provided. The housing 3 is provided with a detachable lid 3a, and the beer coil 4 can be visually recognized by removing the lid 3a.

The beer coil 4 extends downward in the cooling liquid tank 10 from a connection portion with a beer hose, for example, and extends spirally around the axis L from the lower end of the beer coil 4. The upper end of the spirally extending portion of the beer coil 4 is connected to the calan 2 via the tube connecting member C2 and the tube C1.

The axis L is, for example, a reference line extending in the vertical direction in the central portion of the cooling liquid tank 10 in plan view. The shape of the beer coil 4 is not limited to the spiral shape and can be changed as appropriate. However, when the beer coil 4 has a spiral shape, it is possible to secure a long passage for the beer liquid in the cooling liquid W, so that the beer liquid inside the beer coil 4 is kept inside the cooling liquid tank 10. The instant cooling can be more suitably performed.

The refrigeration cycle apparatus 5 includes a refrigerant pipe 5 a that extends spirally so as to surround the beer coil 4 outside the beer coil 4 in the cooling liquid W. Further, the refrigeration cycle device 5 includes a compressor 5b, a condenser 5c, a fan 5d, a dehydrator 5e, a capillary tube 5f, and a controller 5g. The refrigeration cycle device 5 constitutes a refrigeration cycle in which a compressor 5b, a condenser 5c, a dehydrator 5e and a capillary tube 5f are sequentially connected.

The compressor 5b compresses the refrigerant flowing from the refrigerant pipe 5a to generate high temperature refrigerant gas, and the condenser 5c releases heat from the high temperature refrigerant gas, whereby the condenser 5c generates high temperature refrigerant liquid. The fan 5d has a function of sending air into the condenser 5c to efficiently perform heat exchange in the condenser 5c. The high temperature refrigerant liquid generated by the condenser 5c is sent to the capillary tube 5f via the dehydrator 5e. The capillary tube 5f performs pressure reduction and flow rate control on the high temperature refrigerant liquid sent via the dehydrator 5e to generate a refrigerant of, for example, −8° C., and supplies this refrigerant to the refrigerant pipe 5a.

The control unit 5g is electrically connected to the compressor 5b, the condenser 5c, the fan 5d and the dehydrator 5e. The control unit 5g also controls the cooling of the cooling liquid W by controlling the supply of the refrigerant to the refrigerant pipe 5a. When the cooling medium is supplied to the cooling medium pipe 5a, the cooling liquid W is cooled around the cooling medium pipe 5a, whereby ice K is formed around the cooling medium pipe 5a. When it is detected that the thickness of the ice K is thinner than a predetermined value, the control unit 5g supplies the coolant to the coolant pipe 5a to control the ice K to be thick. On the other hand, when the thickness of the ice K is detected to be thicker than the predetermined value, the control unit 5g stops the supply of the refrigerant to the refrigerant pipe 5a and controls the ice K so that the ice K does not become thicker.

Furthermore, the beverage server 1 includes a stirring member 6 and a motor 7. The stirring member 6 is, for example, a propeller and rotates about the axis L. The stirring member 6 rotates to stir the cooling liquid W and form a flow in the cooling liquid W. As a result, the stirring member 6 promotes heat exchange between the cooling liquid W and the beer coil 4, and heat exchange between the cooling liquid W and the ice K.

The cooling liquid tank 10 is formed in a rectangular parallelepiped shape, and the cooling liquid W is stored inside the cooling liquid tank 10. The cooling liquid tank 10 has four side surface portions 10A and a bottom surface portion 10B located below the side surface portions 10A. The upper part of the cooling liquid tank 10 is an open space, and the motor 7 is arranged in this open space. The beer coil 4 is removable above the cooling liquid tank 10. Specifically, in the beer coil 4, the lid 3a of the housing 3 is removed, and the tube connecting member C2 and the tube C1 are removed so that the beer coil 4 alone can be removed from the cooling liquid tank 10. It has become. Further, the beer coil 4 can be integrated with the beer hose, the tube connecting member C2, the tube C1 and the currant 2 described above. In this case, the beer coil 4, the beer hose described above, the tube connecting member C2, the tube C1 and the calan 2 constitute a unitized beverage pouring circuit unit, and the beverage pouring circuit unit is the cooling liquid tank 10. It can be freely attached and detached. This makes it possible to replace the beverage pouring circuit unit itself.

Further, inside the cooling liquid tank 10, a support base 8 for supporting the motor 7 and an electric wiring 9 (wiring) extending from the motor 7 are provided. The support base 8 includes a plurality of pillar portions 8a provided upright on the bottom of the cooling liquid tank 10, and a base portion 8b for fixing the motor 7 at the upper ends of the plurality of pillar portions 8a. The electric wiring 9 extends downward from the motor 7 along the pillar portion 8a of the support base 8, extends outward from the cooling liquid tank 10, and is connected to the control unit 5g described above.

FIG. 2 is a cross-sectional view showing the side surface portion 10A of the cooling liquid tank 10. As shown in FIG. 2, the side surface portion 10A includes a water tank 11, a vacuum heat insulating layer 12, a foam heat insulating material 13, and a soft bag 14 in this order from the inside. The water tank 11 has a waterproof function, and the cooling liquid W is stored in the water tank 11.

The vacuum heat insulating layer 12 is configured by laminating four plate-shaped vacuum heat insulating materials 12a. The four vacuum heat insulating materials 12 a are attached to the outer surface of the water tank 11, and are in close contact with the outer surface of the water tank 11. The foam heat insulating material 13 is, for example, urethane foam. The foamed heat insulating material 13 is provided so as to surround the vacuum heat insulating layer 12 outside the vacuum heat insulating layer 12 in a plan view.

The soft bag 14 is provided to protect the foamed heat insulating material 13 from dew condensation water and moisture from the outside air and steam. The soft bag 14 functions as a gas barrier for the foamed heat insulating material 13. More specifically, the soft bag 14 is provided in order to prevent the foamed urethane forming the foamed heat insulating material 13 from absorbing water and to prevent the heat insulating performance of the foamed heat insulating material 13 from being deteriorated. The material of the soft bag 14 is, for example, soft vinyl chloride. The soft bag 14 is attached to the outer surface of the foamed heat insulating material 13. When the soft bag 14 is transparent, the foamed heat insulating material 13 can be visually recognized from the outside. Further, the housing 3 described above is provided outside the flexible bag 14.

FIG. 3 is a vertical cross-sectional view showing the side surface portion 10A and the bottom surface portion 10B of the cooling liquid tank 10. As shown in FIG. 3, the bottom surface portion 10B includes a water tank 11, a foamed heat insulating material 13, and a soft bag 14 in this order from the inside. The structure of the bottom surface portion 10B is different from the structure of the side surface portion 10A in that the vacuum heat insulating layer 12 is not provided.

The bottom surface portion 10B has a through hole 15 (hole portion) penetrating the bottom surface portion 10B, and a motor wiring take-out portion 19 for taking the electric wiring 9 out of the cooling liquid tank 10 is arranged in the through hole 15. There is. The motor wire take-out portion 19 has a hole through which the electric wire 9 extending from the motor 7 passes, and the electric wire 9 is passed through the through hole 15 in a state where the hole of the motor wire take-out portion 19 is sealed. The motor wire takeout portion 19 and the through hole 15 vertically penetrate the water tank 11, the foamed heat insulating material 13, and the soft bag 14.

The thickness of the foam heat insulating material 13 is different between the bottom surface portion 10B and the side surface portion 10A, and the thickness of the foam heat insulating material 13 of the bottom surface portion 10B is thicker than the thickness of the foam heat insulating material 13 of the side surface portion 10A. There is. The foamed heat insulating material 13 of the side surface portion 10A is provided to hold the four vacuum heat insulating layers 12.

The thickness of the foam heat insulating material 13 of the bottom surface portion 10B is thicker than the thickness of the vacuum heat insulating layer 12. For example, the heat conductivity of the vacuum heat insulating material 12a is 0.0030 W/mK, and the heat conductivity of the foam heat insulating material 13 is 0.0240 W/mK. It is about 8 times sex. Therefore, the thickness of the foamed heat insulating material 13 of the bottom surface portion 10B is preferably 6 times or more and 15 times or less, more preferably 8 times or more and 13 times or less, the thickness of the vacuum heat insulating layer 12, It is more preferably about 8 to 10 times.

FIG. 4 is a perspective view showing the cooling liquid tank 10 with the bottom surface portion 10B facing upward. As shown in FIG. 4, the bottom surface portion 10</b>B includes a recess 16 that is recessed from the lower surface 10 a of the cooling liquid tank 10. The recess 16 is formed, for example, in a U shape, and extends from the one side surface portion 10A to a position beyond the through hole 15. The concave portion 16 is a portion for accommodating the electric wiring 9 and the like that have been passed through the through holes 15 and the electric wiring 9 and the like are accommodated in the concave portion 16 and the electric wiring 9 and the like are provided on the side surface portion 10A side. It is possible to extend to.

Next, a method for manufacturing the cooling liquid tank 10 will be described with reference to FIGS. First, as shown in FIGS. 5 and 6, the water tank 11 is prepared. The water tank 11 includes a discharge pipe 17 for discharging the cooling liquid W from the lower portion of the water tank 11, an overflow pipe 18 for overflowing the cooling liquid W reaching a position higher than a predetermined water level inside the water tank 11, and an electric wiring 9. And a motor wire take-out section 19 through which the motor wire passes.

The discharge pipe 17 extends laterally from the lower surface 11a of the water tank 11. Further, the water tank 11 is provided with an outer edge portion 11b forming an opening on the opposite side of the lower surface 11a thereof, and the outer edge portion 11b projects from the side surface portion 11c of the water tank 11 to the outside of the water tank 11. The overflow pipe 18 extends downward from the outer edge portion 11b along the side surface portion 11c outside the water tank 11. In the water tank 11 arranged upside down, four vacuum heat insulating materials 12a are arranged so as to surround the water tank 11 from the outside. Then, for example, a plurality of vacuum heat insulating materials 12a are temporarily fixed with tape.

After that, as shown in FIG. 7, in a state in which the water tank 11 is arranged upside down, the soft bag 14 is covered on the vacuum heat insulating material 12a and the water tank 11. At this time, the tip of the discharge pipe 17, the tip of the overflow pipe 18, and the motor wire takeout portion 19 are exposed from the soft bag 14. After covering the soft bag 14 in this manner, a stock solution of urethane foam is poured between the soft bag 14, the vacuum heat insulating material 12a and the water tank 11.

The undiluted solution of urethane foam flows into the gap formed between the water tank 11 and the vacuum heat insulating material 12a, the gap formed between the plurality of vacuum heat insulating materials 12a, and the gap formed inside the soft bag 14. Harden. The foam insulation 13 is formed by this curing. The foamed heat insulating material 13 has a heat insulating function as well as a function of solidifying and holding the water tank 11, the vacuum heat insulating material 12a, the soft bag 14, the discharge pipe 17, and the overflow pipe 18.

The foamed heat insulating material 13 is formed by foaming and hardening the stock solution poured as described above, and the cooling liquid tank 10 shown in FIG. 4 is completed. In the cooling liquid tank 10, the tip of the discharge pipe 17 and the tip of the overflow pipe 18 are exposed from the side surface portion 10A, and the motor wire takeout portion 19 is exposed as a through hole 15 in the recess 16.

Below, the operation effect of the drink server 1 which concerns on this embodiment is demonstrated.

As shown in FIG. 3, the beverage server 1 includes a vacuum heat insulating material 12a on the side surface portion 10A. Therefore, the heat insulating property in the side surface portion 10A can be ensured. Further, the thickness of the foam heat insulating material 13 provided on the bottom surface portion 10B in which the through hole 15 is formed is thicker than the thickness of the foam heat insulating material 13 provided on the side surface portion 10A, so that the heat insulating property of the bottom surface portion 10B is ensured. be able to.

In this way, even if the through hole 15 is formed in the bottom surface portion 10B, the heat insulation property of the bottom surface portion 10B can be ensured, so that the reduction of the heat insulation property can be suppressed. Therefore, the heat insulating properties of the side surface portion 10A and the bottom surface portion 10B of the cooling liquid tank 10 can be ensured, so that the temperature rise of the cooling liquid W in which the beer coil 4 is immersed can be suppressed.

As shown in FIG. 4, the bottom surface portion 10B has a recess 16 extending from the one side surface portion 10A to the through hole 15. In this way, since the concave portion 16 extending from the one side surface portion 10A to the through hole 15 is formed, the electric wiring 9 passing through the through hole 15 can be passed through the concave portion 16 and guided to the side surface portion 10A, and the electric wiring 9 can be formed. It is possible to prevent the cooling liquid tank 10 from popping out below.

The beverage server 1 also includes a discharge pipe 17 that discharges the cooling liquid W from the cooling liquid tank 10, and the discharge pipe 17 is embedded in the foamed heat insulating material 13. In this way, since the discharge pipe 17 of the cooling liquid W is embedded in the foamed heat insulating material 13, the heat insulating property of the discharge pipe 17 can be improved. Therefore, the heat transferred from the discharge pipe 17 into the cooling liquid tank 10 can be blocked more reliably, so that the temperature rise of the cooling liquid W in the cooling liquid tank 10 can be suppressed more reliably.

In addition, the beverage server 1 further includes electric wiring 9 that is passed through the through hole 15. In this way, the electric wiring 9 can be passed through the through hole 15 formed in the bottom surface portion 10B. Further, the beer coil 4 is removable above the cooling liquid tank 10. Therefore, even if the beer coil 4 is detachable from the cooling liquid tank 10 and the wiring of the electric device of the beverage server 1 is passed through the through hole 15, the wiring can be prevented from becoming an obstacle when the beer coil 4 is detached.

A vacuum heat insulating layer 12 is provided on the side surface portion 10A of the cooling liquid tank 10. As described above, since the vacuum heat insulating layer 12 is used as the cooling liquid tank 10, the transfer of cold heat to the outside of the cooling liquid tank 10 can be blocked more reliably. Therefore, the low temperature state of the cooling liquid W can be more reliably maintained. When the vacuum heat insulating layer 12 is used as the cooling liquid tank 10, the cooling liquid tank 10 can be thinned while maintaining the cooling performance of the cooling liquid W. Therefore, since the internal capacity of the cooling liquid tank 10 can be increased without increasing the size of the cooling liquid tank 10, more cooling liquid W can be accommodated and more ice can be stored in the cooling liquid tank 10. It is also possible to generate K. Therefore, the cooling capacity for the beer liquid flowing through the beer coil 4 can be enhanced, and the low temperature beer can be continuously provided for a longer time.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and is modified within a range not changing the gist described in each claim or applied to other things. It may be one. That is, the present invention can be variously modified without changing the scope of the claims.

For example, in the above-described embodiment, the example in which the electric wiring 9 extending from the motor 7 is passed through the through hole 15 of the bottom surface portion 10B has been described. However, the wiring passed through the through hole 15 is not limited to the electric wiring 9 described above, and other wiring may be passed through the through hole 15. Further, the number, size and shape of the through holes formed in the bottom surface portion 10B are not particularly limited.

Further, a temperature sensor that measures the temperature of the cooling liquid W may be arranged inside the cooling liquid tank 10, and wiring extending from this temperature sensor may be passed through the through hole 15. Further, this temperature sensor may be provided below the blade of the stirring member 6. In the example shown in FIG. 1, when the stirring member 6 rotates about the axis L, the cooling liquid W flows in the direction in which the axis L extends. Further, since the rotating shaft of the stirring member 6 extends in the vertical direction, the cooling liquid W will flow downward as the blades rotate about this rotating shaft. When the temperature sensor is provided below the blade as described above, the cooling liquid W flowing by the rotation of the blade directly contacts the temperature sensor. Therefore, since the temperature sensor can directly detect the temperature of the stirred cooling liquid W, the temperature of the cooling liquid W can be appropriately detected.

In the above-described embodiment, the example in which the four vacuum heat insulating materials 12a are attached to the outside of the water tank 11 has been described, but the number, shape, size, and thickness of the vacuum heat insulating materials are not limited to the above example. It can be changed as appropriate. Further, in the above-described embodiment, the example in which the vacuum heat insulating material 12a is provided on the side surface portion 10A has been described. In this way, when the side surface portion 10A is formed of the vacuum heat insulating material 12a, the rectangular vacuum heat insulating material 12a can be attached to the outer surface of the water tank 11 as it is, so that the cost for processing the vacuum heat insulating material 12a can be suppressed. Therefore, the cooling liquid tank 10 having high heat insulation performance can be easily manufactured. However, a vacuum heat insulating material may be provided on the bottom surface portion 10B.

Moreover, the cooling liquid tank 10 has the through hole 15 in the bottom surface portion 10B thereof, and the example in which the electric wiring 9 is passed through the through hole 15 has been described. However, wiring such as the electric wiring 9 may be solidified by the foamed heat insulating material 13 that is cured. Further, in the above embodiment, an example in which the foamed heat insulating material 13 is urethane foam has been described, but it is also possible to use foamed heat insulating material other than urethane foam. For example, preformed polystyrene foam may be used as the foam insulation material. Furthermore, in the above-described embodiment, the example in which the bottom surface portion 10B includes the recessed portion 16 recessed from the lower surface 10a has been described, but the recessed portion 16 may be omitted.

Further, in the above-described embodiment, the example in which the beer coil 4 is detachable from the cooling liquid tank 10 has been described. The beer coil does not have to be removable from the cooling liquid tank. The number of beer coils arranged inside the cooling liquid tank may be two or more. Furthermore, the configurations of the beer coil, the refrigeration cycle device, the stirring member, and the motor can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1... Beverage server, 2... Karan, 3... Housing, 3a... Lid, 4... Beer coil (beverage pipe), 5... Refrigeration cycle device, 5a... Refrigerant pipe, 5b... Compressor, 5c... Condenser, 5d... Fan 5e... Dehydrator, 5f... Capillary tube, 5g... Control part, 6... Stirring member, 7... Motor, 8... Support stand, 9... Electric wiring (wiring), 10... Coolant tank, 10A... Side part, 10B ... bottom part, 10a... lower surface, 11... water tank, 11a... lower surface, 11b... outer edge part, 11c... side surface part, 12... vacuum heat insulating layer, 12a... vacuum heat insulating material, 13... foam heat insulating material, 14... soft bag, 15 ... Through hole (hole), 16... Recess, 17... Discharge pipe, 18... Overflow pipe, 19... Motor wiring take-out portion, C1... Tube, C2... Tube connecting member, K... Ice, L... Axis, W... Cooling liquid.

Claims (5)

A beverage server comprising a cooling liquid tank having a side surface portion and a bottom surface portion for containing a cooling liquid for cooling a beverage, and a beverage pipe through which the beverage is immersed while being immersed in the cooling liquid,
A hole is formed in the bottom surface,
A vacuum heat insulating material provided at least on the side surface portion,
A portion outside the vacuum heat insulating material in the side surface portion, and a foam heat insulating material provided on the bottom surface portion,
The hole portion penetrates the foam insulation material,
Wherein the thickness of the foam insulation of the bottom portion, rather thick than the thickness of the foam insulation of the side surface portion,
The bottom portion does not have the vacuum heat insulating material,
Beverage server. The bottom surface portion has a recess extending from one of the side surface portions to the hole portion,
The beverage server according to claim 1. Further comprising a discharge pipe for discharging the cooling liquid from the cooling liquid tank,
The discharge pipe is embedded in the foam insulation material,
The beverage server according to claim 1. Further comprising a wiring passed through the hole,
The beverage server according to any one of claims 1 to 3. The beverage pipe is removable above the cooling liquid tank,
The beverage server according to any one of claims 1 to 4.

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