WO2018142814A1 - Cold-storing receptacle and air-cooling device provided with same - Google Patents

Abstract

A cold-storing receptacle (100) which is housed in an air-cooling device (10) is provided with the following: a body part (110) having formed thereinside a cold-storing space (SP) for accommodating a cold-storing material (HM); and heat-transfer promoting parts (112, 114, 114A, 114B, 114C, 114D, 114E, 114F) that promote heat transfer between the inner side and the outer side of the body part.

Description

Cold storage container and air cooling device provided with the same Cross-reference of related applications

This application is based on Japanese Patent Application No. 2017-018109 filed on February 3, 2017 and Japanese Patent Application No. 2017-208125 filed on October 27, 2017. Claims the benefit of that priority, the entire contents of which are incorporated herein by reference.

The present disclosure relates to a cold storage container stored in an air cooling device and an air cooling device including the cold storage container.

As a compact air cooling device that can be carried around, for example, a chiller as described in Patent Document 1 has been proposed. The said cool air cooler has stored what frozen the drink container which contained the drink inside the container main body formed in the cylinder shape. A fan device for sending air inside the container body to the outside is provided at the upper part of the container body. An air inlet for taking outside air into the container body is formed on the lower wall surface of the container body.

When the fan device is driven, air is taken into the container body through the air inlet. Thereafter, the air flows upward along the side surface of the beverage container, passes through the fan device, and is discharged to the outside. In doing so, the air is cooled by touching the cold beverage container, reducing its temperature. For this reason, low temperature air is blown out from the cooler.

In the air cooling apparatus having such a configuration, a beverage container containing a beverage is used as a “cold storage container” stored in the air cooling apparatus. In addition, beverages in beverage containers are used as “cold storage materials”.

Registered Utility Model No. 3115995

In the air cooling apparatus configured as described in Patent Document 1, heat exchange between the cold storage material (beverage) and the air is performed through the wall surface of the cold storage container (beverage container) formed in a cylindrical shape. Is called.

However, since the beverage container is not originally designed as a cold storage container for the air cooling device, the heat transfer performance inside and outside through the wall surface is not high. For this reason, in an air cooling device using a beverage container as a cold storage container, there is a possibility that air cooling performance cannot be sufficiently exhibited.

The present disclosure is intended to provide a cold storage container that can enhance the cooling performance of air and an air cooling device including the cold storage container.

A cold storage container according to the present disclosure is a cold storage container stored in an air cooling device, and a main body portion in which a cold storage space for accommodating a cold storage material is formed, and between an inner side and an outer side of the main body portion. A heat transfer promotion unit that promotes heat transfer.

In the cold storage container having such a configuration, heat transfer between the inside and the outside of the main body is promoted by the heat transfer promoting portion. As such a heat transfer promotion part, the fin formed in the inner surface and outer surface of a cool storage container is mentioned, for example. In the said cool storage container, heat can be efficiently taken from surrounding air by providing such a heat-transfer promotion part. That is, the air cooling performance can be enhanced by the heat transfer promoting portion.

According to the present disclosure, there are provided a cold storage container that can enhance the cooling performance of air, and an air cooling device including the cold storage container.

FIG. 1 is a diagram illustrating a configuration of a cold storage container according to the first embodiment and an air cooling device including the cold storage container. FIG. 2 is an exploded view showing the configuration of the cold storage container of FIG. 3 is a top view of the cold storage container of FIG. 4 is a cross-sectional view of the cold storage container of FIG. FIG. 5 is a diagram schematically illustrating how the regenerator material solidifies inside the regenerator container of FIG. 1. FIG. 6 is a diagram for explaining the influence of the external fins on the cooling performance. FIG. 7 is a diagram for explaining the influence of the external fins on the temperature of the blown air. FIG. 8 is an exploded view illustrating the configuration of the cold storage container according to the second embodiment. FIG. 9 is an exploded view showing the configuration of the cold storage container according to the third embodiment. FIG. 10 is a cross-sectional view of the cold storage container according to the fourth embodiment. FIG. 11 is a cross-sectional view of a cold storage container according to the fifth embodiment. FIG. 12 is a cross-sectional view of the cold storage container according to the sixth embodiment. FIG. 13 is a cross-sectional view of the cold storage container according to the seventh embodiment. FIG. 14 is a cross-sectional view of the cold storage container according to the eighth embodiment. FIG. 15 is a cross-sectional view of a cold storage container according to the ninth embodiment. FIG. 16 is a cross-sectional view of the cold storage container according to the tenth embodiment. FIG. 17 is a diagram illustrating an internal configuration of the cold storage container according to the eleventh embodiment. FIG. 18 is a diagram schematically illustrating how the regenerator material solidifies inside the regenerator container according to the comparative example.

Hereinafter, the present embodiment will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

The cold storage container 100 according to the present embodiment is a container that stores the cold storage material HM therein, and is configured as a container to be stored in the air cooling device 10. Prior to the description of the cold storage container 100, the configuration of the air cooling device 10 will be described first. As shown in FIG. 1, the air cooling device 10 includes a casing 210 and an upper lid 220.

Casing 210 is a container formed of resin. The casing 210 has a generally cylindrical shape, and is formed as a bottomed container having an open top. A space 201 is formed inside the casing 210. A cold storage container 100 described later is stored in the space 201.

A cylindrical blowing portion 212 that protrudes outward is formed on the lower portion of the outer surface of the casing 210. The central axis of the blowing part 212 is perpendicular to the central axis of the casing 210. An opening 213 is formed at the tip of the blowing portion 212. The external space communicates with the space 201 through the opening 213. The blowing part 212 is a part serving as an outlet for blowing out the cooled air to the outside.

A male screw 211 is formed in the vicinity of the upper end of the outer wall surface of the casing 210. A female screw 221 formed on an upper lid 220, which will be described below, is screwed into the male screw 211, whereby the casing 210 and the upper lid 220 are connected to each other.

The upper lid 220 is a resin member provided so as to cover the opening formed in the upper part of the casing 210. The upper lid 220 has a substantially cylindrical shape, and its lower side is opened. The female screw 221 already described is formed in the vicinity of the lower end portion of the inner wall surface of the upper lid 220. The upper lid 220 is connected to the casing 210 by a female screw 221 with the central axis thereof aligned with the central axis of the casing 210.

In the upper part of the upper lid 220, an introduction port 222 is formed. The external space communicates with the space 201 through the introduction port 222. The inlet 222 is a portion that serves as an inlet for introducing outside air into the space 201.

An electric fan 223 is attached inside the upper lid 220. The electric fan 223 is a blower for sending outside air from the introduction port 222 into the space 201. When a switch (not shown) provided in the air cooling device 10 is turned on by the user, the electric fan 223 is driven, and air is sent from the introduction port 222 into the space 201. The air flows downward in the space 201, that is, along the outer wall surface 118 (outer peripheral surface) of the cold storage container 100, and then blows out from the opening 213 of the blowing portion 212 to the outside.

In the cold storage container 100, a solidified low temperature cold storage material HM is accommodated as will be described later. Since the surface of the cold storage container 100 has a low temperature, the air flowing as described above is cooled when flowing along the outer wall surface 118 of the cold storage container 100, and the temperature is lowered. Thereby, low temperature air is blown out from the blowing unit 212.

In the air cooling device 10, the electric fan 223 is disposed at a position above the cold storage container 100. For this reason, the situation where the dew condensation water produced on the surface of the cool storage container 100 etc. dripped at the electric fan 223 and the electric fan 223 breaks down is prevented. Further, since the air passing through the electric fan 223 is room temperature air before being cooled, it is possible to prevent dew condensation in the electric fan 223.

The configuration of the cold storage container 100 will be described with reference to FIGS. The cold storage container 100 includes a main body 110, internal fins 114, external fins 112, an upper lid 120, and a cap 130. These are all made of aluminum.

The shape of the main body 110 is a cylindrical shape, specifically a substantially cylindrical shape. The main body 110 is formed as a bottomed container whose upper part is opened. The main body 110 is installed inside the casing 210 (that is, the space 201) with the central axis AX aligned with the central axis of the casing 210.

A cold storage space SP is formed inside the main body 110. The cold storage space SP is a space for accommodating the cold storage material HM (not shown in FIG. 2 and the like, see FIG. 5). In the present embodiment, water is used as the cold storage material HM.

The internal fins 114 are a plurality of plate-shaped (flat plate) members provided on the inner side (inner peripheral side) of the main body 110. Each internal fin 114 is formed so as to extend from the inner wall surface 119 (inner peripheral surface) of the main body 110 toward the inside of the cold storage space SP (specifically, the central axis AX). FIG. 4 is a cross-sectional view of the main body 110 cut along a plane perpendicular to the central axis AX. As shown in the figure, a plurality of internal fins 114 are provided inside the main body 110, and each of them is parallel to the central axis AX of the main body 110. Each of the internal fins 114 is formed so as to be arranged in a plurality along the circumferential direction of the main body (direction rotating around the central axis AX).

In the present embodiment, the internal fins 114 are connected to each other at the position of the central axis AX. Instead of such an aspect, the internal fins 114 may not extend to the position of the central axis AX but may be separated from each other.

By forming such internal fins 114, heat transfer between the regenerator material HM accommodated in the regenerator space SP and the main body 110 is performed via the inner wall surface 119 in the outer portion of the regenerator space SP. In addition, it is also performed via the internal fin 114 in the inner portion (portion in the vicinity of the central axis AX) of the cold storage space SP. For this reason, temperature distribution in each part of the cold storage material HM is less likely to occur.

In the present embodiment, heat transfer between the inner side and the outer side of the main body 110 is promoted by providing such internal fins 114 on the inner side of the main body 110. The internal fin 114 corresponds to one of the “heat transfer promoting portions” in the present embodiment.

The external fin 112 is a plurality of plate-like (flat plate-like) members provided on the outer side (outer peripheral side) of the main body 110. Each external fin 112 is formed so as to extend outward from the outer wall surface 118 of the main body 110. As shown in FIG. 4, a plurality of external fins 112 are provided outside the main body 110, and each of them is parallel to the central axis AX of the main body 110. As in the case of the internal fins 114, each external fin 112 is formed so as to be arranged in a plurality along the circumferential direction of the main body.

By forming such external fins 112, the contact area with the air flowing downward along the outer wall surface 118 of the cold storage container 100 is increased. The external fin 112 efficiently exchanges heat between the air and the cold storage material HM. That is, the air cooling performance of the air cooling device 10 is enhanced by the external fins 112.

In the present embodiment, the heat transfer between the inner side and the outer side of the main body 110 is further promoted by providing such external fins 112 on the outer side of the main body 110. The external fin 112 corresponds to one of the “heat transfer promoting portions” in the present embodiment, together with the internal fin 114 described above.

As shown in FIG. 1, in a state where the cold storage container 100 is stored in the casing 210 of the air cooling device 10, the tip surfaces 113 of the respective external fins 112 are in contact with the inner wall surface 224 of the casing 210. It has become. For this reason, a phenomenon in which a part of the air passes through the outer side of the front end surface 113 of the external fin 112 without being subjected to heat exchange is prevented.

In this embodiment, all the internal fins 114 and the external fins 112 are all formed integrally with the main body 110. Such a main body 110 can be formed, for example, by extrusion molding of aluminum. In such a configuration, both the thermal resistance between the internal fins 114 and the main body 110 and the thermal resistance between the external fins 112 and the main body 110 are reduced, so the regenerator HM and the air Can be efficiently exchanged.

The upper lid part 120 is a member provided so as to cover the opening formed in the upper part of the main body part 110. The upper lid portion 120 has a shape that is reduced in diameter toward the upper side, and the diameter of the opening 121 formed at the upper end thereof is smaller than the diameter of the opening 123 formed at the lower end thereof.

A female screw (not shown) is formed in the vicinity of the opening 123 in the inner wall surface of the upper lid portion 120. A male screw 111 is formed in the vicinity of the upper end portion of the outer wall surface 118 of the main body 110. The female screw 111 is screwed with the female screw of the upper lid portion 120, whereby the upper lid portion 120 and the main body portion 110 are connected to each other.

The cap 130 is a member provided to cover the opening 121 of the upper lid 120 from above and prevent the cold storage material HM from leaking out of the cold storage space SP. The cap 130 is formed as a cylindrical member whose upper part is closed and whose lower part is opened. A female screw (not shown) is formed in the vicinity of the lower end portion of the inner wall surface of the cap 130. Further, a male screw 122 is formed in the vicinity of the opening 121 in the outer wall surface of the upper lid portion 120. The female screw 122 of the cap 130 is screwed into the male screw 122, whereby the cap 130 and the upper lid part 120 are connected to each other.

The user can remove the cap 130 from the upper lid 120 by rotating the cap 130 around the central axis AX. Thereby, the cold storage material HM can be supplied to the cold storage space SP through the opening 121, or the cold storage material HM can be discharged from the cold storage space SP through the opening 121. The opening 121 and the cap 130 covering this correspond to the “supply / discharge section” in the present embodiment.

In the state shown in FIG. 1, when the user takes out the cool storage container 100 from the casing 210, the user first removes the upper lid 220 from the casing 210, and then holds the cap 130 in the cool storage container 100 and moves upward. Pull up. As shown in FIG. 3, the diameter D <b> 1 of the cap 130 is smaller than the diameter D <b> 2 of the main body 110. In other words, the shape of the cap 130 when viewed along the central axis AX is smaller than the shape of the main body 110 when viewed along the central axis AX. For this reason, it is relatively easy for the user to grip and pull the cap 130 up. As described above, the cap 130 that is a portion to be gripped by the user corresponds to the “grip portion” in the present embodiment.

In the present embodiment, the diameter of the main body 110 is 65 mm, and the height from the lower end of the main body 110 to the upper end of the cap 130 (that is, the total length of the cold storage container 100) is 200 mm. The shape of the cold storage container 100 is compatible with the shape of a beverage container that is commercially available as a 500 ml plastic bottle. For this reason, if it is an air cooling device of composition which uses a commercially available beverage container as a cold storage container, in many cases, cold storage container 100 concerning this embodiment can be used as a drink container.

The effect of the internal fins 114 being formed on the main body 110 will be described. FIG. 5A shows a cross section of the main body 110 immediately after the liquid-phase regenerator material HM (that is, water) is supplied to the regenerator space SP. Hereinafter, the liquid-phase cold storage material HM is also referred to as “liquid-phase cold storage material HM1”. In the state of FIG. 5 (A), the whole cool storage material HM is the liquid phase cool storage material HM1.

FIG. 5B shows a cross section of the main body 110 when the cold storage container 100 in the state shown in FIG. 5A is put into a freezer and a part of the cold storage material HM is solidified to become a solid phase. It is shown. Hereinafter, the solid-phase regenerator material HM is also referred to as “solid-phase regenerator material HM2”.

The cool storage material HM is cooled from a portion of the cool storage material HM that is in contact with the inner wall surface 119 and the internal fins 114. For this reason, as shown in FIG. 5B, the above-mentioned portion of the regenerator material HM first becomes the solid-phase regenerator material HM2. In the present embodiment, since the internal fins 114 extend to the inside of the cold storage space SP, the solid phase cold storage material HM2 starts to be generated early not only in the outer portion but also in the inner portion of the cold storage space SP. For this reason, it will be in the state which the whole cool storage material HM changed to the solid-phase cool storage material HM2, ie, the state shown by FIG.5 (C), in a comparatively short time.

As a comparative example with the present embodiment, FIG. 18 shows a state in which the cold storage container 100 that does not have the internal fins 114 and the external fins 112 is cooled and the cold storage material HM in the cold storage space SP is solidified. . FIG. 18A shows a cross section of the main body 110 immediately after the liquid-phase regenerator material HM (that is, water) is supplied to the regenerator space SP. Similarly to the case of FIG. 5A, in the state of FIG. 18A, the entire regenerator material HM is the liquid-phase regenerator material HM1.

FIG. 18B shows a cross section of the main body 110 when the cool storage container 100 in the state shown in FIG. 18A is put into a freezer and a part of the cool storage material HM is solidified to become a solid phase. It is shown.

The cooling of the regenerator material HM is performed from the part of the regenerator material HM that touches the regenerator container 100. For this reason, in this comparative example, only the part which touches the inner wall surface 119 of the main-body part 110 among the cool storage materials HM becomes solid-phase cool storage material HM2 previously. That is, in the comparative example, since the internal fin 114 is not formed, the cold storage material HM becomes the solid-phase cold storage material HM2 in the outer portion of the cold storage space SP, while the cold storage in the inner portion of the cold storage space SP. The material HM remains as the liquid phase regenerator material HM1. As a result, in this comparative example, it takes a long time until the entire regenerator material HM changes to the solid-phase regenerator material HM2, that is, the state shown in FIG.

In contrast, in the present embodiment, since the internal fins 114 are formed, the entire regenerator material HM becomes the solid-phase regenerator material HM2 within a relatively short time. For this reason, it is possible to prevent a situation in which preparation (that is, freezing) of the cold storage container 100 is not in time before the user carries out the air cooling device 10 and goes out.

Further, in the air cooling device 10 using the cool storage container 100 according to the comparative example of FIG. 18, when air is being cooled, a portion of the cool storage container 100 that is in contact with the outside air (that is, the main body 110). And heat transfer between the cool storage material HM present in each part of the cool storage space SP is performed only through the wall surface of the main body 110.

The solid phase regenerator material HM2 that has solidified due to the heat transfer gradually melts from the portion near the wall surface. For this reason, while the cool storage material is solidified in the part near the center of the cool storage container 100, the cool storage material HM is melted in the vicinity of the wall surface of the cool storage container 100.

In such a state, a temperature distribution is generated in the melted liquid phase regenerator material HM1. That is, among the melted liquid phase regenerator material HM1, the portion close to the solidified solid state regenerator material HM2 is relatively low temperature, while the portion near the wall surface of the regenerator container 100, that is, air and The portion used for heat exchange is relatively high in temperature. As a result, the temperature of the portion of the cool storage container 100 that is in contact with the outside air also becomes relatively high, and the air is not sufficiently cooled.

As described above, in the air cooling apparatus 10 using the cold storage container 100 according to the comparative example of FIG. 18, the air cooling is performed despite the solidified low-temperature solid-phase cold storage material HM2 remaining in the cold storage container 100. May not be sufficiently performed, and the temperature of the blown air may increase.

On the other hand, in the present embodiment, when air is cooled in the air cooling device 10, the portion of the cold storage container 100 that is in contact with the outside air (that is, the main body portion 110) and each portion of the cold storage space SP are provided. Heat transfer with the existing cool storage material HM is performed through the wall surface of the main body 110 and the internal fins 114.

The solid phase regenerator HM2 gradually melts due to heat transfer from the air. Since the internal fin 114 at this time is in direct contact with (or in the vicinity of) the solid-phase regenerator material HM2 remaining inside, it is cooled by the solid-phase regenerator material HM2 and has a low temperature.

Even after a portion of the regenerator material HM is melted by heat exchange with air and becomes the liquid-phase regenerator material HM1, substantially the entire liquid-phase regenerator material HM1 is cooled by the low-temperature internal fins 114. For this reason, the temperature distribution in each part of the liquid phase regenerator material HM1 becomes substantially uniform. As a result, as long as the solid-phase regenerator material HM2 remains in the regenerator space SP, the temperature of the part of the regenerator 100 that is in contact with outside air, that is, the outer wall surface 118 and the external fin 112 is kept relatively low. . Thereby, it becomes possible to cool the air by the air cooling device 10 for a long time.

The effect of forming the external fin 112 on the main body 110 will be described. As described above, the contact area with the air is increased by the external fins 112, thereby improving the air cooling performance in the air cooling device 10. In FIG. 6, the measurement result of the cooling performance when the external fin 112 is not formed is shown by a graph G01, and the measurement result of the cooling performance when the external fin 112 is formed is shown by a graph G02. Yes.

The “cooling performance” of the air cooling device 10 is energy (unit: W) taken from the air per unit time when the air passes through the air cooling device 10. The inventors measured the cooling performance under the conditions that the temperature of the external air was 28 ° C., the humidity was 40%, and the air was blown out from the blowing section 212 with an air volume of 21 m 3 / h. Went.

The cooling performance when the external fin 112 was not formed was 34 W as shown in the graph G01. On the other hand, the cooling performance in the case where the external fins 112 are formed as in the present embodiment was 66 W as shown in the graph G02. As described above, in the above measurement, it was confirmed that the cooling performance is improved to nearly twice by the external fin 112. This is due to the fact that the contact area with air is increased 3.5 times from 0.04 m 2 to 0.14 m 2 due to the formation of the external fins 112.

In measuring the cooling performance as described above, the inventors also measured the temperature of the air blown out from the blowing section 212 (hereinafter also referred to as (blowing air temperature)). The measurement result of the blown air temperature when the fin 112 is not formed is shown by a graph G11, and the measurement result of the blown air temperature when the external fin 112 is formed is shown by a graph G12.

The blown air temperature when the external fin 112 was not formed was 23 ° C. as shown in the graph G11. That is, when passing through the inside of the air cooling device 10, the temperature of the air decreased by 5 ° C. from the outside air temperature (28 ° C.). On the other hand, when the external fin 112 is formed as in this embodiment, the blown air temperature is 18 ° C. as shown in the graph G12. That is, when passing through the inside of the air cooling device 10, the temperature of the air decreased by 10 ° C. from the outside air temperature (28 ° C.).

Generally, it is known that people feel cool when air at a temperature 5 ° C. lower than the outside air temperature is blown. It is also known that at a position 1 m above the ground surface, the sensible temperature rises 5 ° C. above the outside air temperature. In view of these, when the air cooling device 10 is attached to a baby stroller and used at a height of 1 m from the ground surface, the blown air temperature is required to be 10 ° C. lower than the outside air temperature. In the air cooling device 10 according to the present embodiment, by providing the external fins 112, the blown air temperature that is 10 ° C. lower than the outside air temperature is realized as described above.

As already described, water is used as the cold storage material HM in this embodiment. However, what is used as the cold storage material HM is not necessarily limited to water, and other fluids may be used as the cold storage material HM. For example, if salt water is used as the cold storage material HM, the melting point of the cold storage material HM can be lowered compared to water. Thereby, the blowing air temperature of the air cooling device 10 can be further lowered.

Water and saline (hereinafter collectively referred to as “water”) have a relatively large latent heat during phase change. For this reason, when water etc. are used as the cool storage material HM, the state in which all or a part of the cool storage material HM is in a solid phase can be kept long, and the cooling performance of the air cooling device 10 can be increased for a long time. It can be exhibited over a wide range.

However, water or the like has a characteristic that its volume decreases when it changes from a solid phase to a liquid phase. For this reason, in the process in which the cool storage material HM in the cool storage container 100 changes from the solid phase to the liquid phase, the outer shape of the main body 110 becomes smaller as the volume decreases as described above, and the front end surfaces 113 of the external fins 112 become smaller. There is a concern that the casing 210 may be separated from the inner wall surface 224 of the casing 210. In such a state, as described above, a phenomenon may occur in which a part of the air passes through the outer side of the front end surface 113 of the external fin 112 without being subjected to heat exchange. There is.

In view of this point, it is preferable to use paraffin instead of water or the like as the cold storage material HM. Paraffin has a characteristic that its volume increases when it is changed from a solid phase to a liquid phase, like a general fluid. For this reason, if paraffin is used as the cold storage material HM, the state in which the front end surface 113 of the external fin 112 is in contact with the inner wall surface 224 of the casing 210 even after the cold storage material HM in the cold storage container 100 starts to melt. The cooling performance of the air cooling device 10 can be maintained.

However, paraffin has a lower latent heat during phase change than water. For this reason, compared with the case where water etc. are used as the cool storage material HM, the time which can exhibit the cooling performance of the air cooling device 10 becomes short. Thus, since water etc. and paraffin have merits and demerits, it is preferable to select an appropriate cold storage material HM suitable for the use of the air cooling device 10. In this embodiment, since the opening 121 and the cap 130 are provided as the supply / discharge section, the regenerator material HM can be replaced in accordance with the application of the air cooling device 10.

The second embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate.

In the present embodiment, the external fin 112 and the main body 110 are not integrally formed, and both are separated. The external fin 112 is formed on the outer wall surface 118A of the cylindrical body 110A that is a cylindrical member. The cylindrical body 110A is made of aluminum, and the cylindrical body 110A and the external fin 112 are integrally formed. The cold storage container 100 according to the present embodiment has a configuration in which the main body 110 is inserted inside such a cylindrical body 110A. The outer wall surface 118 of the main body 110 is in contact with the inner wall surface 119A of the cylindrical body 110A. Thereby, heat transfer between the external fin 112 and the main body 110 is ensured. Even if it is such an aspect, there exists an effect similar to 1st Embodiment.

In addition, in the structure of this embodiment, it is preferable to use water etc. as the cool storage material HM. If water or the like is used as the cold storage material HM, the volume of the cold storage material HM expands in the process of solidifying, thereby increasing the outer shape of the main body 110. As a result, the outer wall surface 118 of the main body 110 and the inner wall surface 119A of the cylindrical body 110A are in close contact with each other, so that the thermal resistance between them can be reduced.

The third embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate.

In the present embodiment, each of the external fins 112 in the first embodiment is divided into three, and a plurality of the divided external fins 112 are arranged in a direction along the central axis AX (vertical direction in FIG. 9). It is formed as follows. In FIG. 9, reference numeral 1121 is assigned to the outer fin 112 disposed at the uppermost position among the outer fins 112 divided into three as described above. Further, the outer fin 112 arranged at the center is denoted by reference numeral 1122, and the outer fin 112 disposed at the lowermost position is denoted by reference numeral 1123. Hereinafter, each of them is also expressed as “external fin 1121”, “external fin 1122”, and “external fin 1123”.

In such a configuration, a so-called leading edge effect occurs at the upper end of each of the external fin 1121, the external fin 1122, and the external fin 1123, that is, the upstream end in the air flow direction. Heat exchange between the fins 112 and the air is performed more efficiently. That is, in the present embodiment, a plurality of external fins 112 are provided along the air flow direction, so that the leading edge effect is increased and the air cooling performance is further enhanced.

The position where the external fin 1122 is formed may be a position immediately below the external fin 1121 as in this embodiment, or may be a position shifted in the circumferential direction from the position of the external fin 1121. Good. Similarly, the position where the external fin 1123 is formed may be a position directly below the external fin 1122 as in the present embodiment, but is a position shifted in the circumferential direction from the position of the external fin 1122. Also good.

The fourth embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 10 is a cross-sectional view of the main body 110 of the cold storage container 100 according to the present embodiment cut along a plane perpendicular to the central axis AX as in FIG.

As shown in FIG. 10, the cold storage container 100 according to the present embodiment has the same internal fin 114 as that of the first embodiment (FIG. 4) formed inside the main body 110, while the main body 110. External fins 112 are not formed on the outside. Thus, even if it is an aspect in which only the internal fins 114 are formed as the heat transfer promoting part, the air cooling performance by the cold storage container 100 can be enhanced.

The fifth embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 11 is a cross-sectional view when the main body 110 of the cold storage container 100 according to the present embodiment is cut along a plane perpendicular to the central axis AX similarly to FIG.

As shown in FIG. 11, in the cold storage container 100 according to the present embodiment, external fins 112 similar to those in the first embodiment (FIG. 4) are formed outside the main body 110, while the main body 110. The internal fin 114 is not formed on the inside. Thus, even if it is an aspect in which only the external fin 112 is formed as the heat transfer promoting part, the air cooling performance by the cold storage container 100 can be enhanced.

The sixth embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 12 is a cross-sectional view of the main body 110 of the cold storage container 100 according to the present embodiment cut along a plane perpendicular to the central axis AX as in FIG. In the figure, the inner wall surface 224 of the casing 210 is indicated by a dotted line.

As shown in FIG. 12, the cold storage container 100 according to this embodiment is provided with external fins 112A so as to surround the outer wall surface 118 of the main body 110 from the outside. The external fin 112A is a cylindrical corrugated fin made of an aluminum plate bent into a wave shape. The top of the mountain of the external fin 112 </ b> A is in contact with the inner wall surface 224 of the casing 210, and the bottom of the valley of the external fin 112 </ b> A is in contact with the outer wall surface 118 of the main body 110. It should be noted that the external fin 112A may be brazed at part or all of the portions that are in contact as described above.

Thus, even if the external fin 112A on the outer side of the main body 110 is formed as a corrugated fin instead of a flat fin, it is the same as that described in the first embodiment. There is an effect.

The seventh embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 13 is a cross-sectional view when the main body 110 of the cold storage container 100 according to the present embodiment is cut along a plane perpendicular to the central axis AX similarly to FIG. In the figure, the inner wall surface 224 of the casing 210 is indicated by a dotted line.

As shown in FIG. 13, the cold storage container 100 according to this embodiment is provided with external fins 112 </ b> B so as to surround the outer wall surface 118 of the main body 110 from the outside. The external fin 112B is formed by winding a thin aluminum plate in a spiral shape (roll shape). One end on the inner peripheral side of the external fin 112B is in contact with the outer wall surface 118 of the main body 110 at a point P1 in FIG. Further, one end on the outer peripheral side of the external fin 112B is in contact with the inner wall surface 224 of the casing 210 at a point P2 in FIG. It should be noted that the external fin 112B may be brazed at a part or all of the portions in contact as described above.

As described above, even if the external fin 112B on the outside of the main body 110 is formed not by a flat plate but by spirally winding, the same as described in the first embodiment. The effect of.

The eighth embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 14 is a cross-sectional view when the main body 110 of the cold storage container 100 according to the present embodiment is cut along a plane perpendicular to the central axis AX similarly to FIG.

As shown in FIG. 14, an internal fin 114 </ b> C is provided in the cold storage space SP (that is, inside the main body 110) of the cold storage container 100 according to the present embodiment. The internal fin 114 </ b> C is a plate-like (flat plate) member formed so as to extend radially from the central axis AX toward the inner wall surface 119 of the main body 110. Unlike the first embodiment, the tip of the internal fin 114C is not connected to the inner wall surface 119 of the main body 110, and a small gap is formed between the internal fin 114C and the inner wall surface 119. If the gap is small to some extent, the same effect as described in the first embodiment (temperature distribution in each part of the liquid phase regenerator HM1) even if the internal fin 114C and the inner wall surface 119 are not connected. (Effects of making the images substantially uniform).

Note that such internal fins 114 </ b> C may be formed integrally with the main body 110, or may be formed separately from the main body 110. In the latter case, the internal fin 114 </ b> C may be brazed to the main body 110, or may simply be placed inside the cold storage container 100.

The ninth embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 15 is a cross-sectional view when the main body 110 of the cold storage container 100 according to the present embodiment is cut along a plane perpendicular to the central axis AX similarly to FIG.

As shown in FIG. 15, an internal fin 114 </ b> D is provided in the cold storage space SP (that is, inside the main body 110) of the cold storage container 100 according to the present embodiment. The internal fin 114D is formed by winding a thin aluminum plate in a spiral shape (roll shape) with a gap.

In the present embodiment, the inner fin 114D and the inner wall surface 119 are separated from each other, but a mode in which a part of the inner fin 114D is in contact with the inner wall surface 119 may be employed. Further, the internal fin 114 </ b> D may be brazed to the main body 110, or may simply be placed inside the cold storage container 100.

Thus, even if the internal fins 114D are not formed radially but formed in a spiral shape, the same effects as those described in the first embodiment can be obtained. In the present embodiment, the internal fin 114D easily deforms and follows when the volume of the cold storage material HM is changed when the cold storage material HM is solidified. For this reason, the effect that internal stress is reduced is also acquired.

The tenth embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 16 is a cross-sectional view when the main body 110 of the cold storage container 100 according to the present embodiment is cut along a plane perpendicular to the central axis AX similarly to FIG.

As FIG. 16 shows, the internal fin 114E is provided in the cool storage space SP (that is, the inner side of the main-body part 110) of the cool storage container 100 which concerns on this embodiment. The internal fin 114E is a corrugated fin made of an aluminum plate bent into a wave shape and formed into a cylindrical shape. In the present embodiment, the inner fin 114E and the inner wall surface 119 are separated from each other, but a mode in which a part of the inner fin 114E is in contact with the inner wall surface 119 may be employed. Further, the internal fin 114E may be brazed to the main body 110, or may simply be placed inside the cold storage container 100.

Thus, even if the internal fin 114E is formed as a corrugated fin, the same effects as those described in the first embodiment can be obtained. In the present embodiment, when the volume of the regenerator material HM is changed, for example, when the cold storage material HM is solidified, the internal fins 114E are easily deformed and follow up. For this reason, the effect that internal stress is reduced is also acquired.

The eleventh embodiment will be described with reference to FIG. Hereinafter, differences from the first embodiment will be mainly described, and description of points that are common to the first embodiment will be omitted as appropriate. FIG. 17 is a diagram schematically depicting the internal configuration of the main body 110 of the cold storage container 100 according to the present embodiment as a perspective view. In the figure, the inner surface (the inner wall surface 119 and the bottom surface BS) of the main body 110 that partitions the cold storage space SP is indicated by a dotted line.

A plurality of internal fins 114F are provided in the cold storage space SP (that is, inside the main body 110). Each internal fin 114F is formed as a cylindrical pin fin extending along the central axis AX. Each internal fin 114F has a lower end in contact with the bottom surface BS and is brazed. In the present embodiment, the internal fins 114F are cooled by heat transfer to the bottom surface BS and kept at a low temperature. Thereby, the effect similar to what was demonstrated in 1st Embodiment (Effect which makes temperature distribution in each part of liquid phase cool storage material HM1 substantially equal) can be show | played.

In addition, the air cooling device 10 having the configuration shown in FIG. 1 can accommodate and use each of the cold storage containers 100 described above.

The embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Those in which those skilled in the art appropriately modify the design of these specific examples are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each of the specific examples described above and their arrangement, conditions, shape, and the like are not limited to those illustrated, and can be changed as appropriate. Each element included in each of the specific examples described above can be appropriately combined as long as no technical contradiction occurs.

Claims (16)

A cold storage container (100) stored in an air cooling device (10),
A main body (110) in which a cold storage space (SP) for accommodating a cold storage material (HM) is formed;
A cold storage container comprising: a heat transfer promotion part (112, 114, 114A, 114B, 114C, 114D, 114E, 114F) that promotes heat transfer between the inside and the outside of the main body part. The cold storage container according to claim 1, wherein the heat transfer promoting part includes internal fins (114, 114C, 114D, 114E, 114F) provided inside the main body part. The internal fin is
The cold storage container according to claim 2, which is formed so as to extend from the inner wall surface (119) of the main body portion toward the inside of the cold storage space. The cold storage container according to claim 3, wherein the internal fin is formed integrally with the main body. The main body is formed in a cylindrical shape,
The cold storage container according to claim 3 or 4, wherein the internal fin is formed in a plate shape parallel to a central axis (AX) of the main body. The internal fin is
The cold storage container according to claim 5, wherein a plurality of the cold storage containers are arranged along the circumferential direction of the main body. The cold storage container according to any one of claims 1 to 6, wherein the heat transfer promoting part includes external fins (112, 112A, 112B) provided outside the main body part. The external fin is
The cold storage container according to claim 7, which is formed so as to extend outward from an outer wall surface (118) of the main body. The cold storage container according to claim 8, wherein the external fin is formed integrally with the main body. The main body is formed in a cylindrical shape,
The cold storage container according to claim 8 or 9, wherein the external fin is formed in a plate shape parallel to the central axis of the main body. The external fin is
The cold storage container according to claim 10, wherein a plurality of the cold storage containers are arranged along a circumferential direction of the main body. The external fin is
The cold storage container according to claim 11, wherein a plurality of the cold storage containers are arranged in a direction along the central axis. The said main-body part is provided with the supply / exhaust part (121,130) for supplying the said cool storage material to the said cool storage space, and discharging | emitting the said cool storage material from the said cool storage space. The cold storage container according to any one of 12. The cold storage container according to any one of claims 1 to 13, further comprising a grip portion (130) that is a portion gripped by a user when the cold storage container is taken out of the air cooling device. The main body is formed in a cylindrical shape,
The shape of the gripping part when viewed along the central axis of the body part is
The cold storage container according to claim 14, which is smaller than the shape of the main body portion when viewed along the central axis. Air cooling device provided with the cool storage container of any one of Claims 1 thru | or 15.

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