TW202340057A - Cold insulation container - Google Patents

Abstract

A cold insulation container includes an outer container and an inner container. The outer container includes a case and a cold body. The case includes an inner surface and an outer surface opposite to the inner surface. The inner surface has a first thermal conductivity coefficient, the outer surface has a second thermal conductivity coefficient. A first accommodating space is defined between the inner surface and the outer surface, a second accommodating space is defined by the inner surface. The cold body is disposed in the first accommodating space. The inner container is detachable disposed in the second accommodating space and abuts the inner surface. The inner container has a third accommodating space and the third thermal conductivity coefficient, the third thermal conductivity coefficient is smaller than the first thermal conductivity coefficient.

Description

cold storage container

This case is related to cold storage containers, especially a cold storage container with a replaceable liner.

Generally, refrigerators are mostly made of heat-insulating materials as storage boxes. A cold body that provides a cooling source and the items to be refrigerated are placed in the storage box at the same time. The cold body absorbs the heat of the items to be refrigerated to achieve the refrigeration effect.

The cold body used in general refrigerators is such as ice or refrigerant loaded in a container. Therefore, the cold body is in the form of sheets, blocks, bags or hard-shell containers. The user places the items to be refrigerated. When possible, the items to be refrigerated will be placed directly against the cold body as much as possible to ensure that the items to be refrigerated can truly achieve the refrigeration effect.

However, when the object to be refrigerated is placed in the refrigerator directly against the cold body, the part of the object to be refrigerated that is close to the cold body will be closest to the temperature of the cold body, but the object to be refrigerated cannot fully contact the cold body. , which leads to the problem of uneven refrigeration temperature of the items to be refrigerated. In addition, in order to prolong the refrigeration effect of the cold body, users usually try to cool the cold body to the lowest possible temperature. However, the required refrigeration temperature of the items to be refrigerated is not necessarily the same as the lowest temperature of the cold body. It is difficult for the user to control the refrigerated storage environment. Therefore, general refrigerators still have many problems that need to be improved.

This case provides a cold storage container, which includes an outer container and an inner container. The outer container includes a shell and a cold body. The shell includes opposite inner and outer walls. The inner wall has a first thermal conductivity coefficient, and the outer wall has a second thermal conductivity. A first accommodation space is formed between the inner wall and the outer wall, and a second accommodation space is formed around the inner wall. placement space. The cold body is placed in the first accommodation space. The inner container is detachably accommodated in the second accommodation space and is close to the inner wall. The inner container has a third accommodation space and a third thermal conductivity coefficient, and the third thermal conductivity coefficient is smaller than the first thermal conductivity coefficient.

In this way, the cold body in the outer container provides a cooling source. The cold body absorbs the heat of the inner container through the inner wall of the casing, causing the inner container to cool down. The items to be refrigerated are placed in the inner container for refrigeration, and the heat from the inner wall is absorbed by the cold body. The thermal conductivity coefficient is greater than the thermal conductivity coefficient of the inner container, ensuring that the cold body can cause the inner container to cool down to the preset temperature, while the inner container with a lower thermal conductivity coefficient can ensure that the inner container and the items to be refrigerated inside are maintained at the preset temperature. In addition, changing the thickness or material of the inner container can correspondingly change the preset temperature of the third accommodation space to meet different refrigeration temperature requirements.

In some embodiments, the first thermal conductivity coefficient is greater than the second thermal conductivity coefficient.

In some embodiments, the third thermal conductivity coefficient is greater than the second thermal conductivity coefficient.

In some embodiments, the second thermal conductivity coefficient is 0.1~1W/m-˚C.

In some embodiments, the first thermal conductivity coefficient is 10~100 W/m-˚C.

In some embodiments, a cover body is further included, the second accommodation space has a second opening, the third accommodation space has a third opening, and the cover body is detachably assembled at the second opening and the third opening.

In some embodiments, the cover is made of thermal insulation material.

In some embodiments, the housing further includes a filling port and a closing member, the filling port penetrates the outer wall, and the closing member is detachably provided at the filling port.

In some embodiments, the cold body is liquid nitrogen or solid carbon dioxide.

In some embodiments, the inner container has a convex part, and the inner wall surface of the housing has a concave part, and the inner container uses the convex part to butt against the concave part.

In some embodiments, the convex portion extends to the third opening, and the concave portion extends to the second opening.

Referring to Figures 1 to 10, Figure 1 is a schematic three-dimensional appearance of one embodiment of the cold-insulating container of the present invention; Figure 2 is a schematic three-dimensional appearance of the cold-insulating container of the present invention configured in another appearance shape; Figure 3 is one of the cold-insulating containers of the present invention. A three-dimensional exploded schematic view of the embodiment; Figure 4 is an exploded schematic sectional view of one embodiment of the cold-insulated container of the present invention; Figure 5 is a combined sectional schematic view of one embodiment of the cold-insulated container of the present invention; Figure 6 shows the filling port 13 and 13 of the cold-insulated container of the present invention. A partially enlarged schematic view of an embodiment of the closure 14; Figure 7 is a partially enlarged schematic view of an embodiment of the outer container 10 of the cold-insulated container in which the inner wall surface 111 and the outer wall surface 112 have different thicknesses; Figure 8 is a partial enlarged schematic view of the outer container 10 of the cold-insulated container in this case is a schematic cross-sectional view of an embodiment of a split structure; Figure 9 is a schematic cross-sectional view of an embodiment in which the inner container 20 of the cold-insulating container is configured with different thicknesses and materials; Figure 10 is a schematic cross-sectional view of the inner container 20 and the outer container 10 of the cold-insulating container of the present case A schematic diagram of an embodiment in which corresponding concave and convex structures are provided.

Referring to Figures 1 and 2, the cold storage container in this case is used to store items to be refrigerated and to maintain the items to be refrigerated at a preset refrigeration temperature. The cold storage container includes an outer container 10 and an inner container 20 . The outer container 10 includes a shell 11 and a cold body 12. The shell 11 includes opposite inner wall surfaces 111 and outer wall surfaces 112. The inner wall surface 111 has a first thermal conductivity coefficient, and the outer wall surface 112 has a second thermal conductivity coefficient. The inner wall surface 111 and A first accommodation space C1 is formed between the outer wall surfaces 112 , and a second accommodation space C2 is formed around the inner wall surfaces 111 . The cold body 12 is accommodated in the first accommodation space C1. The inner container 20 is detachably accommodated in the second accommodation space C2 and is close to the inner wall surface 111. The inner container 20 has a third accommodation space C3 and a third thermal conductivity coefficient. The third thermal conductivity coefficient is smaller than the first thermal conductivity coefficient. derivative coefficient.

Thereby, the cold body 12 in the outer container 10 provides a cooling source for cooling. The cold body 12 absorbs the heat of the inner container 20 through the inner wall surface 111 of the casing 11 to cause the inner container 20 to cool down. The items to be refrigerated are stored in the inner container 20 . Refrigeration is carried out in the third accommodation space C3, and the thermal conductivity coefficient through the inner wall surface 111 is greater than the thermal conductivity coefficient of the inner container 20, ensuring that the cold body 12 can cause the inner container 20 to cool down to the preset temperature, and the content with a lower thermal conductivity coefficient The container 20 can ensure that the inner container 20 and the items to be refrigerated therein are maintained at a preset temperature. In addition, changing the thickness or material of the inner container 20 can correspondingly change the preset temperature of the third accommodation space C3 to meet different refrigeration temperature requirements.

Referring to FIGS. 1 to 4 , in some embodiments, the outer container 10 is a cylindrical structure with one end closed and the other end open. In these embodiments, the appearance of the outer container 10 is the appearance of the shell 11 , and the cold body 12 is completely covered by the shell 11 . The housing 11 can be an integrated structure or a split structure according to the type or type of the cold body 12 . It is worth noting that the appearance of the outer container 10 is not limited to this shape. The appearance of the outer container 10 can also be a rectangular cylinder structure as shown in FIG. 2 .

The cold body 12 may be in various physical forms, such as but not limited to solid water (ice cubes), liquid nitrogen, or liquid carbon dioxide (dry ice). Due to different material properties, the cold body 12 may undergo different phase changes after absorbing heat. Therefore, the shape of the shell 11 may be determined based on the phase change that occurs after the cold body 12 absorbs heat.

Referring to Figures 4 and 5, in some embodiments, the housing 11 is an integral closed structure. In these embodiments, the cold body 12 accommodated in the first accommodation space C1 of the housing 11 is low-temperature solid water. (i.e. ice cubes). Here, the cold body 12 changes its solid state to a liquid state after absorbing heat, and the cold body 12 can return to the solid state as long as it is cooled down again. Therefore, in the embodiment where the shell 11 is an integrated structure, the cold body 12 can be water. When the cold storage container needs to refrigerate objects, the outer container 10 can be directly placed in a low-temperature environment to cool down the cold body 12 inside. Its physical form is changed to a solid state, and in this state, the inner container 20 is used to accommodate the items to be refrigerated for refrigeration.

In some embodiments, when the cold body 12 is a low-temperature gas such as liquid nitrogen or solid carbon dioxide, the cold body 12 will change its physical form into a gaseous state after absorbing heat. In these embodiments, the cold body 12 must be replenished by filling after use, and the phase change produced by the cold body 12 after absorbing heat must also be equipped with a pressure relief pipe. Therefore, when the cold body 12 is a low-temperature gas such as liquid nitrogen or solid carbon dioxide, the shell 11 of the outer container 10 is a non-integrated closed structure.

Referring to FIG. 6 , in some embodiments, when the cold body 12 is a low-temperature gas such as liquid nitrogen or solid carbon dioxide, the shell 11 of the outer container 10 includes a filling port 13 and a closing member 14 . The filling port 13 penetrates the outer wall 112 , and the closing member 14 is detachably provided on the filling port 13 . Thereby, when the cold body 12 such as liquid nitrogen or solid carbon dioxide vaporizes due to heat absorption, the cold body 12 can be filled through the filling port 13 by removing the closing member 14, so as to facilitate the reuse of the cold storage container.

In some embodiments, in order for the cold body 12 in the shell 11 of the outer container 10 to effectively and fully absorb the heat of the inner container 20 to cool down the inner container 20, the first thermal conductivity coefficient of the inner wall surface 111 of the shell 11 is greater than The second thermal conductivity of the outer wall surface 112.

Referring to FIG. 7 , in one embodiment, in order to make the first thermal conductivity coefficient of the inner wall surface 111 of the shell 11 greater than the second thermal conductivity coefficient of the outer wall surface 112 , the shell 11 of the outer container 10 may be an integral closed structure. , here, the thickness of the inner wall surface 111 surrounding the housing 11 constituting the first accommodation space C1 is smaller than the thickness of the outer wall surface 112 . It should be noted that the thickness of the inner wall surface 111 and the outer wall surface 112 refers to the distance between the inner wall surface 111 and the vertical extension direction of the inner container 20 .

Referring to Figure 8, in one embodiment, in order to make the first thermal conductivity coefficient of the inner wall surface 111 of the housing 11 greater than the second thermal conductivity coefficient of the outer wall surface 112, the shell 11 of the outer container 10 may be of a split structure. Here, the inner wall surface 111 of the housing 11 surrounding the first accommodation space C1 is made of metal, and the outer wall surface 112 of the housing 11 is made of plastic, but the present case is not limited to this. Thereby, the part of the cold body 12 in the casing 11 close to the outer wall surface 112 does not easily absorb external heat to avoid temperature rise, while the part of the cold body 12 close to the inner wall surface 111 can quickly absorb the heat of the inner container 20 so that the contents The device 20 quickly cools down to the preset refrigeration temperature.

In some embodiments, the inner wall surface 111 of the shell 11 of the outer container 10 is configured to have high thermal conductivity efficiency. In these embodiments, the first thermal conductivity coefficient is 10~100W/m-˚C. The outer wall surface 112 of the housing 11 is configured with low thermal conductivity efficiency. In these embodiments, the second thermal conductivity coefficient is 0.1~1 W/m-˚C.

Referring to FIGS. 1 to 3 , in some embodiments, the inner container 20 is a cylindrical structure with one end closed and the other end open. In these embodiments, the appearance shape of the inner container 20 corresponds to the shape of the inner wall surface 111 of the outer container 10 so as to be close to the inner wall surface 111 of the outer container 10 .

In some embodiments, in order to ensure that the inner container 20 can be quickly cooled by the cold body 12 of the outer container 10 , and that its temperature cannot be easily changed to maintain the preset temperature after cooling, compared with the outer surface of the shell 11 As for the wall surface 112, the outer wall surface 112 is preferably made of an insulating material, and the inner container 20 needs to absorb heat by the cold body 12. Therefore, the third thermal conductivity coefficient of the inner container 20 is greater than the second thermal conductivity coefficient of the outer wall surface 112, ensuring that The inner container 20 can absorb heat by the cold body 12 and maintain the temperature after cooling.

Referring to Figure 9, it is worth noting that since the inner container 20 is detachably assembled in the second accommodation space C2 of the outer container 10, under the premise that the cold body 12 is the same, the structural configuration or material of the inner container 20 will be different. It will directly affect the refrigeration temperature of the third storage space C3 for the items to be refrigerated. Therefore, when the preset temperatures for the items to be refrigerated are different, the third storage space can be adjusted by replacing the inner container 20 with different thicknesses. The preset temperature of C3; the preset temperature of the third accommodation space C3 can also be adjusted by replacing the inner container 20 made of different materials.

The amount of heat transfer is mainly determined by the temperature gradient, heat transfer cross-sectional area and thermal conductivity coefficient. The temperature gradient (temperature difference), heat transfer cross-sectional area and thermal conductivity coefficient are all proportional to the heat transfer amount, and the higher the heat transfer amount, the higher the heat absorption/ It is also easier to dissipate heat. Therefore, in the embodiment in which both the outer container 10 and the inner container 20 are cylindrical structures with one end open, the second accommodation space C2 of the shell 11 of the outer container 10 has a second opening C21, and the third accommodation space of the inner container 20 The space C3 has a third opening C31. When the items to be refrigerated are stored in the third accommodation space C3, although the material of the inner container 20 has the effect of maintaining the preset temperature, the open third opening C31 will be exposed to the outside world. The temperature difference between the inner container 20 and the inner container 20 affects the thermal insulation effect of the inner container 20 .

Therefore, in order to minimize the impact of ambient temperature on the insulation effect of the inner container 20, referring to Figures 5, 8 and 9, in some embodiments, the cold storage container further includes a cover 30, and the cover 30 is detachably assembled on The second opening C21 and the third opening C31 close the third opening C31 through the cover 30 to reduce the external influence on the heat preservation effect of the inner container 20 . In these embodiments, the smaller the thermal conductivity of the cover 30 is, the smaller the temperature difference between the outside world and the third accommodation space C3 can be reduced. Therefore, the cover 30 is preferably made of an insulating material with a low thermal conductivity.

Furthermore, since the amount of heat conduction is also positively related to the heat transfer cross-sectional area, in order to enable the heat of the cold body 12 of the outer container 10 to be quickly conducted to the inner container 20, in some embodiments, referring to FIG. 10, the inner container 20 is relatively There are a plurality of convex portions 21 on one side of the inner wall surface 111 of the casing 11, and the inner wall surface 111 of the casing 11 has a plurality of concave portions 1111. When the inner container 20 is accommodated in the second accommodation space C2, the inner container 20 is configured to have a plurality of convex portions 21. The convex portion 21 is in contact with each concave portion 1111 . Thereby, the contact area between the outer container 10 and the inner container 20 is increased, which can increase the amount of heat conduction, so that the cold body 12 of the outer container 10 can quickly absorb the heat of the inner container 20, and the inner container 20 can be cooled to the predetermined temperature more quickly. Set value.

In an embodiment in which the inner container 20 includes a convex portion 21 and the inner wall surface 111 of the outer container 10 includes a concave portion 1111 , the convex portion 21 extends linearly to the third opening C31 , and the concave portion 1111 linearly extends to the second opening C21 . Thereby, in addition to increasing the heat conduction area between the convex portion 21 of the inner container 20 and the concave portion 1111 of the outer container 10 , the inner container 20 can be stably and quickly guided by the convex portion 21 and the concave portion 1111 It is placed in the second accommodation space C2 to improve the convenience of replacing the inner container 20 .

Although the present disclosure has been disclosed in some embodiments, this is not intended to limit the present disclosure. Anyone with ordinary knowledge in the art may make slight changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of patent protection in this case must be determined by the scope of the patent application attached to this specification.

10:Outer container 11: Shell 111:Inner wall surface 1111: concave part 112:Outer wall surface 12:Cold body 13:Filling port 14: Closure 20:Inner container 21:convex part 30: Cover C1: First accommodation space C2: Second accommodation space C21: Second opening C3: The third accommodation space C31: The third opening

[Fig. 1] is a schematic three-dimensional appearance diagram of one embodiment of the cold storage container of the present invention. [Figure 2] is a schematic three-dimensional appearance diagram of an embodiment in which the cold storage container of the present invention is configured with another appearance shape. [Fig. 3] is a three-dimensional exploded schematic diagram of one embodiment of the cold storage container of the present invention. [Fig. 4] is an exploded cross-sectional view of one embodiment of the cold storage container of the present invention. [Fig. 5] is a schematic cross-sectional view of an embodiment of the cold storage container of the present invention. [Figure 6] is a partially enlarged schematic diagram of an embodiment of the cold storage container provided with a filling port and a closure. [Fig. 7] is a partially enlarged schematic diagram of an embodiment in which the thickness of the inner wall surface and the outer wall surface of the outer container of the cold storage container are different. [Fig. 8] is a schematic cross-sectional view of an embodiment of the present invention in which the container other than the cold storage container has a split structure. [Figure 9] is a schematic cross-sectional view of an embodiment in which the inner container of the cold storage container is configured with different thicknesses and materials. [Fig. 10] is a schematic diagram of an embodiment in which corresponding concave and convex structures are provided between the inner container and the outer container of the cold storage container of the present invention.

10:Outer container

11: Shell

111:Inner wall surface

112:Outer wall surface

12:Cold body

20:Inner container

30: Cover

C1: First accommodation space

C2: Second accommodation space

C21: Second opening

C3: The third accommodation space

C31: The third opening

Claims (11)

A cold storage container containing: An outer container containing: A shell includes an inner wall surface and an outer wall surface opposite to each other. The inner wall surface has a first thermal conductivity coefficient. The outer wall surface has a second thermal conductivity coefficient. A first thermal conductivity coefficient is formed between the inner wall surface and the outer wall surface. accommodating space, the inner wall surrounding which forms a second accommodating space; and A cold body is accommodated in the first accommodation space; and An inner container is detachably accommodated in the second accommodation space and attached to the inner wall. The inner container has a third accommodation space and a third thermal conductivity coefficient, and the third thermal conductivity coefficient is smaller than the The first thermal conductivity coefficient. The cold storage container of claim 1, wherein the first thermal conductivity coefficient is greater than the second thermal conductivity coefficient. The cold storage container of claim 2, wherein the third thermal conductivity coefficient is greater than the second thermal conductivity coefficient. The cold storage container as described in claim 1, wherein the second thermal conductivity coefficient is 0.1~1W/m-˚C. The cold storage container as described in claim 1, wherein the first thermal conductivity coefficient is 10~100 W/m-˚C. The cold storage container of claim 1 further includes a cover, the second accommodation space has a second opening, the third accommodation space has a third opening, and the cover is detachably assembled on the second opening and the third opening. The cold storage container of claim 6, wherein the cover is made of thermal insulation material. The cold storage container of claim 1, wherein the shell further includes a filling port and a closing member, the filling port penetrates the outer wall surface, and the closing member is detachably disposed on the filling port. The cold storage container of claim 1, wherein the cold body is liquid nitrogen, solid carbon dioxide or solid water. The cold storage container according to claim 1, wherein the inner container has a plurality of convex parts, and the inner wall surface of the casing has a plurality of concave parts, and the inner container uses the plurality of convex parts to abut against the plurality of concave parts. The cold storage container of claim 10, wherein the second accommodation space has a second opening, the third accommodation space has a third opening, the plurality of convex parts extend to the third opening, and the plurality of concave parts extend to the second opening.

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