WO2017061743A1

WO2017061743A1 - Food storage container having freshness-preserving function

Info

Publication number: WO2017061743A1
Application number: PCT/KR2016/011048
Authority: WO
Inventors: 전건하; 유금배; 박은주
Original assignee: 주식회사 지아이엠텍
Priority date: 2015-10-05
Filing date: 2016-10-04
Publication date: 2017-04-13
Also published as: KR101749136B1; KR20170040586A

Abstract

The present invention relates to a food storage container having a freshness-preserving function and, more specifically, to a food storage container having a freshness-preserving function which has a space formed on the periphery of the bottom thereof in which cold air emitted from a phase change material can remain, so that the freshness of the food stored in the container can be maintained during a change from cold storage to room temperature storage. The food storage container having a freshness-preserving function according to the present invention has a cold air pocket part formed at the bottom thereof in which cold air emitted from a heat transfer member can remain, thereby making it more efficient to lower and maintain the inner temperature and thus preserving food freshness for a long time even during an external temperature change from cold storage to room temperature storage.

Description

Food container with freshness

The present invention relates to a food storage container having a function of maintaining freshness, and more particularly, the freshness of the food stored therein when a space is formed around the lower portion to maintain the cold air emitted from the phase change material from the refrigeration to room temperature storage. It relates to a food storage container having a freshness maintaining function that can be maintained.

In order to maintain the freshness of food for a long time, food should be stored in the food storage container and stored at 0 ~ 4 ℃ with the cover sealed.

In a typical home, the food is stored in a refrigerator in a food storage container to store the food at the above temperature.

However, since the food storage container stored in the refrigerator is withdrawn every meal, the temperature change occurs in the food stored in the food storage container by the room temperature higher than the refrigerator temperature, and the fermentation speed of the food is increased.

In general, food containers made of synthetic resins having low-cost and light characteristics and properties capable of freely forming moldability and color are widely used.

However, a food container made of such a resin has a high sealing property, when moving from a refrigerated storage place to a room temperature storage place and having an external temperature increased, there is a disadvantage in that the gas produced as the stored food is fermented cannot be discharged to the outside. In addition, the intake of the fresh air from the outside does not easily store the food for a long time because the food is easily contaminated with the food deterioration and odor.

In order to eliminate these parts, food storage containers containing far infrared rays or ceramics or food storage containers containing ocher have been devised and used.

Korean Utility Model Publication No. 20-0289837 discloses powdered plastic bodies such as ocher, elvan, illite, jade or the like in an integral manner in fastening holes drilled in a synthetic resin container to deodorize, antibacterial and far infrared rays. The food storage for maintaining the freshness of the fermented food in a container by the method which makes the air in and out with the fine hole formed in the member is posted.

However, such a food storage container is inadequate to prevent the progress of fermentation of food due to changes in external temperature. Therefore, there is a demand for a food storage container capable of maintaining freshness for a long time even with an external temperature change.

On the other hand, in the 'kimchi refrigerator with excellent cold preservation ability' disclosed in the Republic of Korea Patent Publication No. 10-2008-0050157, the kimchi container for storing kimchi has a structure that is inserted into a separate cold air storage container, the lower side of the cold air storage container A method of preserving the cold air of kimchi is proposed as a method of disposing a cold storage container when the kimchi container is taken out of the kimchi refrigerator by placing a refrigerating member on the back.

However, the kimchi container and the cold storage container disclosed in the above Patent Publication can provide the effect of preserving the cold air of food such as kimchi, but due to the structure of the double barrel has the disadvantage that the volume is large, as well as the procedure of taking out the contents There are complex drawbacks.

As a technique to compensate for this disadvantage, Japanese Laid-Open Patent Publication No. 2012-162317 proposes a technique for installing cold insulation on the lower surface of the cover to maintain the cold air inside the container. However, there is a problem that the insulating material is disposed inside the container and in contact with the food in the interior, which is constrained to use the cooling material for other purposes because the ingredients such as seasonings such as cooked food is buried in the cooling material.

[Preceding technical literature]

Republic of Korea Utility Model Registration No. 20-0289837

Republic of Korea Patent Publication No. 10-2008-0050157

Japanese Laid-Open Patent Publication No. 2012-162317

The present invention is to solve the above problems, it is possible to maintain the freshness for a long time is equipped with a heat transfer member is stored phase change material, in particular to provide a food storage container having a freshness maintenance function to increase the freshness maintenance efficiency of the lower part Its purpose is to.

In addition, there is another object to provide a food storage container having a freshness maintaining function that can be used for other purposes from the outside of the refrigerator by separately removing only the heat transfer member when stored in the refrigerator or the like.

Food storage container having a freshness maintaining function of the present invention for achieving the above object is formed with an accommodation space therein and the opening is formed in communication with the receiving space; A cover coupled to the body to cover the opening; And a heat transfer member mounted to the body to transmit cold air to the accommodation space, and to cool air downward to form an air curtain formed on the outer circumferential surface of the body to block contact with indoor air.

The body has a main body portion on which the heat transfer member is mounted, and a cold air pocket portion connected to a lower portion of the main body portion and having a smaller circumference than the main body, and formed with an air curtain around by cold air discharged from the heat transfer member. It includes;

The cold air pocket portion is preferably formed in a stepped shape of a plurality of layers having a smaller perimeter toward the bottom.

The main body portion is preferably formed with a first receiving groove that can accommodate the heat transfer member on the outer peripheral surface.

The heat transfer member may be mounted to the first accommodation groove so as to protrude from the outer circumferential surface of the main body portion, and formed to a thickness thicker than the depth of the first accommodation groove so that cold air flows downward.

The main body portion may communicate with the cold air pocket portion in the first accommodating groove to guide the cold air of the heat transfer member to the cooling pocket portion to form a first cold guide groove for forming an air curtain around the cooling pocket portion. Do.

The cover is mounted on the cover with a second receiving groove drawn downward to accommodate the heat transfer member on the outer circumferential surface and a portion drawn up to the edge of the cover in communication with the second receiving groove on the outer circumferential surface of the cover. It is preferable that a second cold guide groove is formed to allow cold air of the heat transfer member to flow down to the outer circumferential surface of the main body.

The main body portion is formed in a position in communication with the first accommodation groove on the outer circumferential surface located above the first accommodation groove and correspondingly corresponds to the second cold guide groove, and flows down the cold air flowing through the second cold guide groove. A third cold guide groove guiding to the first accommodating groove, and a second cold guide groove communicating with the second cold guide groove and extending to the cold air pocket portion to transfer cold air flowing down through the second cold guide groove to the cold air pocket portion. Four cold guide grooves are preferably formed.

The main body portion is formed on the inner circumferential surface corresponding to the first accommodating groove is provided with a wrinkle portion to ensure a wide area that can be transferred to the cold air of the heat transfer member.

The food storage container having the freshness maintaining function of the present invention is formed in the lower portion of the lower portion of the cold air pocket to keep the cold air discharged from the heat transfer member to increase the internal temperature cooling and maintenance efficiency, so that the food stored in the room temperature in the cold storage at room temperature changes There is an advantage that can maintain the freshness of a long time.

In addition, the heat transfer member is detachably installed on the outside of the body to block contact with the food contained therein and to be easily detached from the outside, so that only the heat transfer member is removed while the food storage container is placed in the refrigerator. There is an advantage that can utilize the cold air of the heat transfer member in a variety of applications from the outside.

1 is an exploded perspective view of a food storage container having a freshness maintaining function according to a first embodiment of the present invention,

Figure 2 is a partial cross-sectional view of the food storage container of Figure 1,

3 is a partial cross-sectional view of a food storage container having a freshness maintaining function according to a second embodiment of the present invention,

4 is a partially separated perspective view of a food storage container having a freshness maintaining function according to a third embodiment of the present invention;

5 is a partial cross-sectional view of the food storage container of FIG.

Figure 6 is an exploded perspective view of a food storage container having a freshness maintaining function according to a fourth embodiment of the present invention,

7 is a cross-sectional view of a food storage container having a freshness maintaining function according to a fifth embodiment of the present invention.

A food storage container having a freshness maintaining function of the present invention includes: a body having an accommodation space formed therein and an opening formed in communication with the accommodation space; A cover coupled to the body to cover the opening; And a heat transfer member mounted to the body to transmit cold air to the accommodation space, and to cool air downward to form an air curtain formed on the outer circumferential surface of the body to block contact with indoor air.

Hereinafter, with reference to the accompanying drawings will be described in more detail food storage container having a freshness maintaining function according to a preferred embodiment of the present invention.

In general, the food storage container is a food, such as fruit, vegetables and kimchi is stored, depending on the food may be stored in the refrigerator, etc., or stored outside.

In order to reduce the temperature change of the stored food when the food storage container storing the food to be refrigerated is exposed to the outside, the pack containing the phase change material is generally stored in the food storage container together with the food inside, or the food storage containing the phase change material is stored. Use a container.

Here, the phase change material (Phase Change Material) is a material that accumulates a large amount of heat energy or emits stored heat energy through a phase change process, which will be described in detail later.

Now, a food storage container having a freshness maintaining function according to the present invention will be described. 1 to 2 illustrate a food storage container according to the first embodiment of the present invention. 1 is an exploded perspective view of a food storage container having a freshness maintaining function according to a first embodiment of the present invention, Figure 2 is a partial cross-sectional view of the food storage container of FIG.

Referring to FIG. 1, the food storage container 1 having the freshness maintaining function according to the first embodiment of the present invention includes a body 100, a cover 200, and a heat transfer member 300.

The body 100 has a rectangular parallelepiped shape in which an accommodation space 101 is formed therein and an opening 111 communicating with the accommodation space 101 is formed thereon, and is divided into a main body part 110 and a cold air pocket part 150. do.

The main body 110 has an opening 101 formed therein in communication with the inner space in a quadrangular shape in which the inner space is formed, and the cold air pocket 150 described below is connected to the lower portion. The inner space of the main body 110 forms an accommodating space 101 together with the inner space of the cold air pocket 150, and occupies a large part of the accommodating space 101. The main body 110 has a first accommodating groove 113 in which the heat transfer member 300 to be described later is mounted on an outer circumferential surface thereof. The first accommodating groove 113 is drawn inward from the outer circumferential surface of the main body 110 and is formed one by one for each side orthogonal to each other. The first accommodating groove 113 is introduced into a quadrangular shape to widen the contact area with the heat transfer member 300 so that heat of the heat transfer member 300 can be well transmitted. The inner circumferential surface of the first accommodating groove 113 is formed with a protruding groove 113a which can be inserted into the coupling groove 311 formed in the case 320 of the heat transfer member 300.

Referring to FIG. 2, a protruding portion 114 protruding at a position corresponding to the first accommodating groove 113 is formed on the inner circumferential surface of the main body 110. The thickness of the main body portion 110 in which the protrusions 114 are formed is thin, which is to facilitate heat transfer, that is, cold air, of the heat transfer member 300 mounted in the first accommodating groove 113.

The cold air pocket portion 150 is a portion formed at the lower portion of the body 100 and is connected to the lower portion of the main body 110 and is formed to have a smaller circumference than the main body 110. The cold air pocket unit 150 is formed in a stepped shape having a plurality of layers having a smaller perimeter toward the lower end. Referring to FIG. 2, the cold air pocket 150 is a portion in which an air curtain made of cold air is formed around the cold air discharged downward from the heat transfer member 300 mounted in the first accommodating groove 113.

The cover 200 is a portion that is coupled to the upper portion of the body 100 to cover the opening 111 to seal the receiving space 101. The cover 200 has a plate shape having a perimeter corresponding to the shape of the opening 111 so as to cover the opening 111. The edge of the cover 200 extends a predetermined distance vertically downward to cover the upper portion of the body 100. The cover 200 is drawn downward from the upper surface to form a second receiving groove 213 in which the heat transfer member 300 is accommodated. The inner circumferential surface of the second receiving groove 213 is formed with a coupling protrusion 213a inserted into the coupling groove 311 formed in the case 320 of the heat transfer member.

The heat transfer member 300 is mounted in the first accommodating groove 113 and the second accommodating groove 213 to transmit cold air to the accommodating space 101. In addition, the heat transfer member 300 is formed so that the air curtain (a) to block the contact with the indoor air made of cold air to the outer peripheral surface of the discharged cold air flows downward.

The heat transfer member 300 includes a case 320 mounted in the first accommodating groove 113 and the second accommodating groove 213 and a phase change material 310 filled in the case 320.

The phase change material 310 is filled in the case 320, which will be described later, and refers to a material used for the purpose of storing energy or maintaining a constant temperature by absorbing or releasing latent heat of the material. . Here, the latent heat refers to heat absorbed or released at the same temperature as the phase change of the material, the latent heat is much larger than the amount of heat absorbed or released in the sensible heat, that is, the phase change does not occur.

Therefore, when the ambient temperature is high, the phase change material gradually increases in temperature, and when the ambient temperature is low, the temperature gradually decreases. In other words, in the summer when the ambient temperature is high, it is possible to maintain a cool state for a long time, and in the winter when the ambient temperature is low, there is a function to maintain a warm state for a long time. Specifically, if a certain temperature is stored for the phase change material, the phase change material may release heat or store heat while changing the phase in the corresponding temperature range to increase or decrease the ambient temperature.

The phase change material 310 used in the present invention is a solid-liquid phase change material at a set temperature, and organic paraffins tetradecane, pentadecane, hexadecane, heptadecane, octadecane, eicosane, fatty acid lauric acid , Stearic acid, palmitic acid, myristic acid, capric acid, caprylic acid, polyethylene glycol and various salts and eutectic salt solutions such as manganese, calcium carbonate n hydrate, sodium phosphate n hydrate, sodium sulfonate n hydrate, etc. It may be one selected and various other materials may be applied. And the set temperature range of the phase change material may be widely applied up to -20 ~ 120 ℃.

The case 320 has an internal space in which the phase change material 310 is filled, and is formed to correspond to the shape of the first accommodating groove 113 and the second accommodating groove 213. In this case, the case 320 is formed to a thickness thicker than the depth in which the first accommodating groove 113 is inserted. The material of the case 320 is a synthetic resin is applied, but is not limited if the phase change material 310 is accommodated therein and can be phase-changed. The case 320 is a first formed in the first accommodating groove 113 and the second accommodating groove 213, respectively, in order to maintain a coupling state with the first accommodating groove 113 and the second accommodating groove 213 on the outer circumferential surface thereof. The coupling grooves 311 into which the two

coupling protrusions

113a and 213a are inserted are formed.

Hereinafter will be described the operation of the food storage container according to the first embodiment of the present invention described above.

When the food storage container 1 stored in the refrigerator is withdrawn from the refrigerator, since the room temperature is higher than the temperature of the food storage container 1, the ambient temperature is lowered while the phase change material is removed from the surrounding heat. When the ambient temperature decreases, the heat transfer member 300 may maintain a constant temperature by discharging the heat absorbed by the phase change material again. In addition, the cool air generated by the heat transfer member 300 is transferred to the inside of the main body part 110 through the first accommodation groove 113 and the second accommodation groove 213 in contact with the heat transfer member 300 and thus the body ( It maintains the temperature of the food stored in 100).

In addition, cold air flows down the heat transfer member 300 due to convection of air by the heat transfer member 300 protrudingly mounted to the first accommodating groove 113.

Referring to Figure 2, the cold air flows down the heat transfer member 300, the lower portion of the body is surrounded by cold air curtain (a) is formed. In addition, the air curtain formed by the cold air flows down the outer circumferential surface of the cold air pocket portion by the cold air pocket portion 150 formed in the lower portion of the body 100 is formed thick.

The lower part of the body is blocked by the air curtain by such an air curtain, so that the freshness of the food stored in the food storage container can be maintained for a long time.

On the other hand, Figure 3 is a partial cross-sectional view of the food storage container 2 having a freshness maintaining function according to a second embodiment of the present invention. The food storage container 2 according to the second embodiment of the present invention further includes a wrinkle portion 115 in the main body portion 110 of the food storage container 1 according to the first embodiment of the present invention. Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

The protrusion 114 formed on the inner circumferential surface corresponding to the first accommodating groove 113 of the main body 110 is formed with a wrinkle portion 115 so as to secure a wide area for transferring cold air. ) Is a portion where the convex shape and the concave shape arc curvature are repeated. The wrinkles 115 widen the area in contact with the cold air transmitted from the heat transfer member 300 to increase the cold air conductivity in the food stored in the body 110.

On the other hand, Figure 4 and Figure 5 shows a food storage container 3 having a freshness maintaining function according to a third embodiment of the present invention. 4 is a partial perspective view of the food storage container 3 according to the third embodiment of the present invention, Figure 5 is a partial cross-sectional view of the food storage container 3 applied to FIG. Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

The food storage container 3 further includes a first cold guide groove 116 in the main body portion 110 of the food storage container 2 according to the second embodiment of the present invention.

The first cold guide groove 116 communicates with the cold air pocket 150 in the first accommodating groove 113 to guide the cold air of the heat transfer member 300 to the cold air pocket 150 to surround the cold air pocket 150. Air curtain is formed in this part.

4 and 5, the first cold guide groove 116 is drawn inward from the outer circumferential surface of the main body 110 formed between the first accommodating groove 113 and the cold air pocket portion 150. 1 accommodating groove 113 and the cold air pocket portion 150 to communicate with.

The first cold guide groove 116 serves to assist the formation of an air pocket by cooling down the cold air of the heat transfer member.

Although the first cold guide groove 116 is formed in a plurality at regular intervals in the main body portion 110 at a position corresponding to the first receiving groove 113, but the width of the first cold guide groove is greatly increased It can also be applied to form one.

On the other hand, although not shown, when the heat transfer member 300 is mounted so as not to protrude from the outer circumferential surface of the main body portion in the first receiving groove, the first cold guide groove 116 is cold air pocket of the heat transfer member 300 It may be applied to play a major role in forming air pockets on the outer circumferential surface of the cold air pocket portion.

On the other hand, Figure 6 shows a food storage container 4 having a freshness maintaining function according to a fourth embodiment of the present invention. 6 is an exploded perspective view of the food storage container 4 according to the fourth embodiment of the present invention. Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

The food storage container 4 according to the fourth embodiment of the present invention is further provided with a second cold guide groove 215 in the cover 200 according to the third embodiment of the present invention, the main body portion 110 The third cold guide groove 117 and the fourth cold guide groove 119 are further provided.

The second cold air guide groove 215 is a portion drawn from the outer circumferential surface of the cover 200 to the edge of the cover 200 to communicate with the second receiving groove 213. The second cold air guide groove 215 allows the cool air of the heat transfer member 300 mounted in the second accommodating groove 213 of the cover 200 to flow down to the outer circumferential surface of the main body part 110.

The plurality of second cold guide grooves 215 may be divided into parallel grooves 215b drawn along the extending direction of the cover and diagonal grooves 215a extending from the edge of the second accommodation groove to the edge of the cover.

The parallel groove 215b is a portion connected to the third cold guide groove 117 to be described later formed in the main body portion 110. The oblique groove 215a is a portion connected to the fourth cold guide groove 119 to be described later formed on the main body 110.

The main body 110 of the food storage container 4 includes a third cold guide groove 117 and a fourth cold guide groove 119.

The third cold guide groove 117 communicates with the first accommodation groove 113 on the outer circumferential surface located above the first accommodation groove 113 and corresponds to the parallel groove 215b of the second cold guide groove 215. It is a part formed at the position.

The third cold guide groove 117 serves to guide the cold air flowing down through the second cold guide groove 215 to the first accommodating groove 113. The third cold guide groove 117 is introduced in the inward direction from the outer circumferential surface of the main body portion 110 positioned above the first receiving groove 113, so that the first receiving groove 113 and the second cold guide groove of the cover ( 213) is the part that makes communication.

The fourth cold air guide groove 119 is a portion formed at each corner of the main body portion 110 and communicates with the diagonal groove 215a of the second cold air guide groove 215 of the cover 200 and to the cold air pocket portion 150. It is an extended part. The fourth cold guide groove 119 serves to guide the cold air flowing down through the second cold guide groove 215 to the cold air pocket 150.

The food storage container 4 according to the fourth embodiment of the present invention has cold air through the second cold guide groove 215, the third cold guide groove 117, and the fourth cold guide groove 119. By flowing into the 113 and the cold air pocket portion 150, there is an advantage of reducing the contact with the room temperature and by supplying cold air to the cold air pocket portion to maintain the freshness of the food stored therein for a long time.

On the other hand, Figure 7 shows a food storage container 5 having a freshness maintaining function according to a fifth embodiment of the present invention. As shown in FIG. 7, the food storage container 5 according to the fifth embodiment of the present invention includes a case of the heat transfer member 300 such that the heat transfer member 300 does not protrude from the outer circumferential surface of the main body portion 110. 320 has the same thickness as the depth of the first receiving groove 113, the thickness of the main body formed between the first receiving groove 113 and the cold air pocket portion 150 is formed thin. Food storage container (5) is to apply the cold air through the main body formed between the first receiving groove 113 and the cold air pocket portion 150.

The food storage container having a freshness maintaining function according to the embodiment of the present invention so far is formed in the lower portion of the cold air pocket portion that can stay in the cold air discharged from the heat transfer member to increase the internal temperature cooling and maintenance efficiency in the refrigeration When stored at room temperature, there is an advantage that can keep food fresh for a long time.

In addition, the food storage container according to the present invention is not only the heat transfer member in which the phase change material is stored is disposed on the outside of the main body is blocked directly contact with the food in the inside, but also easy to remove it even when stored in the refrigerator, etc. Not only is this simple but also the cold air stored in the heat transfer member after desorption of the heat transfer member can be easily used for other purposes from the outside of the refrigerator.

For example, assume that the food storage container according to the present invention is housed in a food storage such as kimchi is stored in the refrigerator, when the user wants to move the food in an ice box when you go on a trip, such as camping outside , The user can be easily used to maintain the cold air of the ice box by removing the heat transfer member attached to the outside of the food storage container according to the invention in the refrigerator in the ice box. At this time, in the case of the technology disclosed in the above-described Korean Patent Application Publication or Japanese Patent Application Publication, not only is the procedure of removing the cold storage member or the cold insulation material complicated, but also the direct contact with the food inside does not immediately use it. , The food storage container according to the present invention has the advantage of easily solving such a problem.

The food storage container having a freshness maintaining function according to the present invention has been described with reference to an example shown in the drawings, but this is merely illustrative, and those skilled in the art can make various modifications and equivalents therefrom. It will be appreciated that other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

[Description of the code]

1,2,3: Food storage container 100: Body

101: accommodation space 110: main body

111: opening 113: first receiving groove

114: protrusion 115: wrinkle

116: first cold guide groove 150: cold air pocket portion

200: cover 201: handle

213: second receiving groove 300: heat transfer member

310: phase change material 320: case

The present invention is a food storage container stored in a refrigerator, etc., when moving from the refrigerator to the outside to maintain the cold, and to maintain the freshness of the food, such as using a heat transfer member when moving the food to the outside, such as camping, etc. Applicable

Claims

A body having an accommodation space formed therein and having an opening communicating with the accommodation space;

A cover coupled to the body to cover the opening;

And a heat transfer member mounted to the body to transmit cold air to the accommodation space and to allow cold air to flow downward to form an air curtain blocking the contact with indoor air by forming cold air on the outer circumferential surface of the body. Food container with retention function.
The method of claim 1, wherein the body is

A main body unit to which the heat transfer member is mounted;

Is connected to the lower portion of the main body portion is formed around the main body smaller than the main body and the air curtain pocket formed around the air curtain by the cold air discharged from the heat transfer member; food having a freshness maintenance function characterized in that it comprises a Storage container.
The method of claim 2, wherein the cold air pocket portion

Food storage container having a freshness maintaining function, characterized in that formed in a stepped shape of a plurality of layers having a smaller perimeter toward the bottom.
The method of claim 2, wherein the main body portion

A food storage container having a freshness maintaining function, characterized in that the first receiving groove is formed on the outer circumferential surface to accommodate the heat transfer member.
The method of claim 4, wherein the heat transfer member

A food storage container having a freshness maintaining function, which is mounted to the first accommodating groove so as to protrude from the outer circumferential surface of the main body, and formed to a thickness thicker than the depth of the first accommodating groove so that cold air flows downward. .
The method of claim 4, wherein the main body portion

Freshness maintenance characterized in that the first cold guide groove is formed in communication with the cold air pocket portion from the first accommodation groove to guide the cold air of the heat transfer member to the cooling pocket portion to form an air curtain around the cooling pocket portion Food container with function.
The method of claim 4, wherein the cover

A second accommodation groove recessed downward to accommodate the heat transfer member on an outer circumferential surface thereof;

The second cold guide groove for allowing the cold air of the heat transfer member mounted on the cover to flow to the outer peripheral surface of the main body in a portion drawn from the outer peripheral surface of the cover to the edge of the cover in communication with the second receiving groove Food storage container having a freshness maintaining function, characterized in that formed.
The method of claim 7, wherein the main body portion

The first accommodating groove is formed in a position in communication with the first accommodating groove on the outer circumferential surface located above the first accommodating groove and correspondingly corresponds to the second cold guide groove and flows down the cold air flowing through the second cold guide groove. The third cold air guide groove to guide to,

The freshness maintaining function is formed in communication with the second cold guide groove and extends to the cold air pocket portion to transfer cold air flowing down through the second cold guide groove to the cold air pocket portion. Food storage containers.
The method of claim 4, wherein the main body portion

And a wrinkle portion formed on an inner circumferential surface corresponding to the first accommodating groove so as to secure a wide area in which cold air of the heat transfer member can be transferred.