CN114715515A

CN114715515A - Storage warehouse

Info

Publication number: CN114715515A
Application number: CN202111215391.5A
Authority: CN
Inventors: 目良聪; 大野雄辅
Original assignee: Zhushang International Logistics Co ltd; Sumitomo Corp; Daiichi Institution Industry Co Ltd
Current assignee: Sumitomo Corp; Daiichi Institution Industry Co Ltd
Priority date: 2021-09-13
Filing date: 2021-10-19
Publication date: 2022-07-08
Anticipated expiration: 2041-10-19
Also published as: JP2023041285A; JP7091532B1; CN114715515B; CN217436374U

Abstract

The invention provides a storage box capable of more reliably restraining the distribution deviation of electric field intensity. The storage container (10) includes a container body (20) and an electrode (70). The storage body (20) has a storage chamber (S10) therein. The electrode (70) is provided on the inner surface of the upper wall (41) of the storage body (20), and forms an electric field in the storage chamber (S10). The inner surface of a bottom wall portion (45) arranged opposite to an upper wall portion (41) among a plurality of wall portions forming the outer wall of a storage container main body (20) is electrically grounded, the inner surface of the upper wall portion (41) is electrically insulated, and the inner surfaces of a right side wall portion (42), a left side wall portion (43), and a back wall portion except the upper wall portion (41) and the bottom wall portion (45) are electrically insulated.

Description

Storage warehouse

Technical Field

The present invention relates to a storage.

Background

Conventionally, there is a storage box described in patent document 1 below. The storage box described in patent document 1 includes electrodes arranged inside thereof and a power supply for applying a voltage to the electrodes. The storage is formed in a rectangular box shape. The electrode is fixed to an inner surface of one side wall portion of the storage, and forms an atmosphere of an electrostatic field inside the storage based on a voltage applied from a power supply. This makes it possible to keep the freshness of the fresh food or the like stored in the storage longer than in the case where no electrostatic field is formed in the storage.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2001-204428.

Disclosure of Invention

Problems to be solved by the invention

In the storage box described in patent document 1, since the other side wall portion other than the one side wall portion on which the electrode is disposed is grounded, the electric field in the storage box is basically formed from the one side wall portion toward the other side wall portion. Specifically, in the storage box described in patent document 1, since the electrodes are disposed on the bottom wall portion, electric fields are formed in directions from the electrodes toward the right side wall portion, the left side wall portion, and the upper wall portion, respectively. In this case, since the distance from the electrode to the both side wall portions is shorter than the distance from the electrode to the upper wall portion, an electric field is easily formed in a direction from the electrode to both side wall portions, and on the other hand, it is difficult to form an electric field in a direction from the electrode to the upper wall portion. This causes variation in the distribution of the electric field intensity in the storage. If fresh food or the like is placed in an area where the electric field is weak in the storage, the freshness may not be maintained.

The present invention has been made in view of such circumstances, and an object thereof is to provide a storage box capable of more reliably suppressing variation in distribution of electric field intensity.

Means for solving the problems

The storage container solving the above problem includes a storage container main body and an electrode. The storage body has a storage chamber therein. The electrode is provided on an inner surface of a predetermined wall portion constituting a part of an outer wall of the storage body, and forms an electric field in the storage chamber. When a wall portion arranged to face a predetermined wall portion among a plurality of wall portions constituting an outer wall of a storage case main body is set as an opposing wall portion, and a plurality of remaining wall portions other than the predetermined wall portion and the opposing wall portion are set as a plurality of non-opposing wall portions, an inner surface of the opposing wall portion is electrically grounded, all or a part of the predetermined wall portion is electrically insulated, and at least one inner surface of the plurality of non-opposing wall portions is electrically insulated partially or entirely.

As described above, when the inner surfaces of the predetermined wall portion and the non-opposing wall portion are electrically insulated, the distance from the electrode to the portion electrically grounded can be increased as compared with a structure in which the inner surfaces are not electrically insulated. This makes it easy to form an electric field in a direction from the electrode toward the inner surface of the opposing wall, while making it difficult to form an electric field in a direction from the electrode toward the predetermined wall and the non-opposing wall. As a result, the directivity of the electric field formed by the electrodes can be improved, and thus the variation in the distribution of the electric field intensity can be more reliably suppressed.

In the above storage, preferably, the storage body is formed in a rectangular box shape, the predetermined wall portion is an upper wall portion of the storage body, the opposing wall portion is a bottom wall portion of the storage body, and the plurality of non-opposing wall portions are remaining wall portions of the plurality of wall portions of the storage body excluding the upper wall portion, the bottom wall portion, and the door portion.

According to this configuration, since the article stored in the storage chamber is less likely to contact the electrode disposed on the upper wall portion of the storage body, for example, breakage of the electrode can be easily avoided.

In the above storage container, the predetermined wall portion is preferably electrically insulated over the entire surface.

According to this configuration, since an electric field is hardly formed in a direction from the electrode toward the predetermined wall portion, it is possible to more reliably suppress variation in distribution of the electric field strength.

In the above storage box, the non-opposing wall portion is preferably electrically insulated over the entire surface.

According to this configuration, since the electric field is hardly formed in the direction from the electrode toward the non-opposing wall portion, it is possible to more reliably suppress variation in the distribution of the electric field strength.

In the storage box described above, it is preferable that an insulating member made of a member different from the storage box main body is provided on the predetermined wall portion and the non-opposing wall portion.

According to this configuration, even if the storage main body is electrically grounded, by additionally providing the insulating member, it is possible to easily realize a configuration in which only the inner surface of the opposing wall portion is electrically grounded.

In the above storage box, the insulating member is preferably formed entirely of an insulating material. Alternatively, the insulating member is preferably formed by coating an insulating material around a predetermined material.

In the above storage, it is preferable that the storage includes: a transformer for applying voltage to the electrodes, and a control panel for controlling the transformer, wherein the total weight of the transformer is less than 36 kg.

The storage is preferably a new product or a second-hand product.

Effects of the invention

According to the storage box of the present invention, it is possible to more reliably suppress variations in the distribution of the electric field intensity.

Drawings

Fig. 1 is a perspective view showing a three-dimensional structure of a storage box in the embodiment.

Fig. 2 is a sectional view showing a sectional structure along line II-II of fig. 1.

Fig. 3 is a sectional view showing a sectional structure along the line III-III of fig. 2.

Fig. 4 (a) and (B) are sectional views showing a sectional structure of the insulating member in the embodiment.

Fig. 5 is a sectional view showing a sectional structure of the storage box of the comparative example.

Fig. 6 is a sectional view showing a sectional structure along the line VI-VI of fig. 5.

Fig. 7 is a graph showing the electric field intensity at measurement points P1 to P5 shown in fig. 6 by comparing the storage box in the comparative example with the storage box in the embodiment.

Fig. 8 is a sectional view showing a sectional structure of a storage according to another embodiment.

Fig. 9 is a sectional view showing a sectional structure of a storage according to another embodiment.

Fig. 10 is a sectional view showing a sectional structure along the X-X line of fig. 9.

Fig. 11 is a sectional view showing a sectional structure of a storage according to another embodiment.

Detailed Description

Hereinafter, an embodiment of the storage will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals as much as possible, and redundant description thereof will be omitted for ease of understanding.

The storage box 10 shown in fig. 1 is used as a refrigerator for refrigerating and storing articles stored therein. The articles stored in the storage container 10 are fresh foods, dairy products, noodles, and the like. The fresh food is seafood such as fish and shellfish; fruits such as strawberry and apple; cabbage, tomato and other vegetables; edible meat such as beef and pork; eggs and processed foods thereof. The dairy product is milk or cheese, etc. The flour is prepared from powder of grains such as wheat flour and buckwheat flour. The articles stored in the storage box 10 are not limited to foods, and may be flowers, medicines, organs, and the like.

The storage 10 can be used as a stationary type refrigerator, a mobile type refrigerator, or the like. A fixed refrigerator is a refrigerator installed in a room such as a food processing factory or a storage. A mobile refrigerator is a refrigerator mounted on a mobile body such as a ship or an airplane. The storage 10 may be a non-movable warehouse such as a container or a prefabricated warehouse other than a transportation warehouse. The storage 10 may be any of a new product and a second-hand product.

As shown in fig. 1, the storage container 10 includes a storage container body 20 capable of storing articles therein and a cooling device 30 built in the storage container body 20. In fig. 1, the vertical direction is indicated by an arrow Z1 upward, and the vertical direction is indicated by an arrow Z2 downward.

The storage body 20 includes a box 40 and a pair of doors 50. The case 40 and the door 50 are formed of a metal material such as aluminum or stainless steel, and are electrically grounded.

The case 40 is formed in a rectangular box shape having an opening on the front surface. The front opening of the case 40 is closed by a pair of doors 50. Hereinafter, of the plurality of wall portions 41 to 45 constituting the outer wall of the box 40 shown in fig. 2 and 3, the wall portion 41 disposed at the vertical upper side Z1 is referred to as "upper wall portion 41", the wall portion 42 disposed at the right side as viewed from the door portion 50 is referred to as "right side wall portion 42", the wall portion 43 disposed at the left side as viewed from the door portion 50 is referred to as "left side wall portion 43", the wall portion 44 disposed at the back side as viewed from the door portion 50 is referred to as "back wall portion 44", and the wall portion 45 disposed at the vertical lower side Z2 is referred to as "bottom wall portion 45". The space surrounded by the wall portions 41 to 45 and the door portion 50 forms a storage chamber S10 as an internal space of the storage body 20. The storage chamber S10 is a space for storing articles. In order to improve the refrigerating performance of the storage container 10, a heat insulating material for suppressing heat transfer from the storage chamber S10 to the outside of the storage container 10 is embedded in each of the walls 41 to 45 of the box 40 and the door 50.

As shown in fig. 1, the pair of door portions 50 is coupled to the housing 40 so as to be openable and closable. In the storage container 10, by opening the door portion 50, an arbitrary article can be put into the storage chamber S10 or an article stored in the storage chamber S10 can be taken out to the outside. By closing the door 50, the storage chamber S10 becomes a closed space, and the articles in the storage chamber S10 are stored in a cooled environment.

The cooling device 30 is driven by the supply of electric power, and thereby supplies cool air to the storage chamber S10 to cool the inside of the storage chamber S10.

As shown in fig. 2 and 3, the storage container 10 further includes insulating members 61 to 65 and electrodes 70 disposed inside the storage container body 20.

The insulating member 61 is provided on the upper wall 41 of the storage body 20. The insulating member 61 is formed in a plate shape from an insulating material such as resin. The insulating member 61 may have a structure in which the entire member is an insulating material 600 as shown in fig. 4 (a), or may have a structure in which an insulating material 602 is applied around a predetermined material 601 as shown in fig. 4 (B). The predetermined material 601 is made of iron, for example. The insulating member 61 is fixed to the inner surface of the upper wall portion 41 of the storage body 20 via a bracket or the like, not shown, made of an insulating material. The insulating member 61 is disposed over the entire inner surface of the upper wall 41 or covers most of the inner surface of the upper wall 41. An electrode 70 is fixed to the bottom surface of the insulating member 61.

The electrode 70 may be directly attached to the upper wall 41 of the storage case body 20, or may be attached to the insulating member 61 and fixed to the upper wall 41 of the storage case body 20 via the insulating member 61. As a method of attaching the electrode 70 and the like to the upper wall portion 41 of the container body 20, any method such as a method of fastening the electrode to the upper wall portion 41 of the container body 20 with a bolt, a method of placing the electrode on an angle iron, and the like can be used. The electrode 70 and the like may be attached to the upper wall 41 of the storage body 20 without using a fastener such as a bolt or an angle iron. That is, the method of attaching the electrode 70 and the like, whether or not a fastener is used for the attachment, and the material of the fastening portion are not limited.

The insulating members 62 to 64 are provided on the inner surfaces of the right side wall 42, the left side wall 43, and the back wall 44 of the storage body 20. Further, the insulating member 65 is provided on the inner surfaces of the pair of door sections 50. These insulating members 62 to 65 are formed of a sheet made of an insulating material such as a polyester film, for example, and are adhered to the inner surfaces of the wall portions 42 to 44 and the door portion 50 by adhesion or the like. Similarly to the insulating member 61, the insulating members 62 to 65 may have a structure in which the material itself is an insulator, or may have a structure in which an insulating material is applied around another material (e.g., iron). The insulating members 62 to 65 are disposed over the entire inner surfaces of the wall portions 42 to 44 and the door portion 50 or over most of the inner surfaces thereof.

In this way, in the storage container 10 of the present embodiment, the inner surfaces of the upper wall portion 41, the right side wall portion 42, the left side wall portion 43, and the back wall portion 44 of the storage container body 20 and the inner surface of the door portion 50 are electrically insulated by the insulating members 61 to 65. On the other hand, the inner surface of the bottom wall 45 of the storage case body 20 is electrically grounded.

In the storage container 10 of the present embodiment, the upper wall portion 41 corresponds to a predetermined wall portion having the electrode 70 on the inner surface. The bottom wall 45 corresponds to an opposing wall that faces a predetermined wall. The right side wall portion 42, the left side wall portion 43, the back wall portion 44, and the door portion 50 correspond to non-opposing wall portions other than the predetermined wall portion and the opposing wall portion.

As shown in fig. 2, the electrode 70 is connected to a voltage applying device 80 provided inside or outside the storage case body 20. The voltage applying device 80 includes a transformer 81, a control panel 82, and the like, and applies a predetermined high voltage to the electrodes 70. The transformer 81 boosts a voltage supplied from a power source and applies the boosted voltage to the electrode 70. The control board 82 has various circuits and the like for controlling the transformer 81. The high voltage applied from the voltage applying device 80 to the electrode 70 may be, for example, an alternating voltage whose magnitude and direction periodically change with the passage of time, or a constant voltage whose magnitude and direction do not change with the passage of time. The electrode 70 forms an electric field in the housing chamber S10 based on the high voltage applied by the voltage applying device 80.

Next, the operation and effect of the storage box 10 of the present embodiment will be described. Hereinafter, the articles stored in the storage chamber S10 will also be referred to as storage items.

By forming the electric field in the storage chamber S10, the stored material in the storage chamber S10 can be sterilized and the ripening of the stored material can be promoted. Therefore, the stored articles can be stored for a long period of time with freshness maintained, and the taste of the stored articles can be enlarged. Further, since the freezing point of the stored material can be lowered by the stored material being present in the environment of the predetermined electric field, the stored material can be stored without freezing even in a lower temperature environment, for example, a negative temperature environment. Therefore, the freshness of the stored items can be maintained for a longer period of time.

On the other hand, if the distribution of the electric field intensity in the storage chamber S10 is uneven, the effect of the stored object existing in the region where the electric field intensity is weak is lower than or not equal to the effect that would be originally obtained by the above-described electric field formation.

In this regard, in the storage container 10 of the present embodiment, as described above, the inner surfaces of the upper wall portion 41, the right side wall portion 42, the left side wall portion 43, and the back wall portion 44 of the storage container body 20 and the inner surface of the door portion 50 are electrically insulated from each other. The inner surface of the bottom wall 45 of the storage case body 20 is electrically grounded. Therefore, when the electrode 70 forms an electric field in the housing chamber S10, the electric field as indicated by arrows in fig. 2 and 3 is easily formed in the housing chamber S10. That is, it is difficult to form an electric field in a direction from the electrode 70 toward the electrically insulated upper wall portion 41, right side wall portion 42, left side wall portion 43, back wall portion 44, and door portion 50, and it is easy to form only an electric field in a vertical direction from the electrode 70 toward the inner surface of the electrically grounded bottom wall portion 45. As a result, the directivity of the electric field formed by the electrode 70 can be improved, and thus the variation in the distribution of the electric field strength in the storage chamber S10 can be more reliably suppressed.

Specifically, in the storage container 10 of the present embodiment, the variation in the distribution of the electric field intensity is suppressed as compared with the storage container 100 of the comparative example shown in fig. 5. The storage container 100 of the comparative example shown in fig. 5 differs from the storage container 10 of the present embodiment in that no insulating member is provided on the right side wall portion 42, the left side wall portion 43, and the bottom wall portion 45 of the storage container body 20. In the storage container 100 of this comparative example, a voltage of "7 kV" was applied to the electrode 70, and the electric field intensity at the measurement points P1 to P5 of the bottom wall portion 45 shown in fig. 6 was experimentally measured. In fig. 6, the gate 50 is not shown. Similarly, the storage container 10 of the present embodiment applies a voltage of "7 kV" to the electrode 70, and experimentally measures the electric field intensity at the measurement points P1 to P5 of the bottom wall portion 45. The measurement results are shown in FIG. 7. The "increase rate" shown in fig. 7 is a value representing, in percentage, the ratio of the electric field intensity of the storage container 10 of the present embodiment to the electric field intensity of the storage container 100 of the comparative example.

As shown in fig. 7, the storage container 10 of the present embodiment has a higher electric field strength than the storage container 100 of the comparative example at any of the measurement points P1 to P5. As shown in fig. 7, in the storage box 100 of the comparative example, the ratio of the maximum value of the electric field intensity (2831[ V/m ]) to the minimum value of the electric field intensity (812[ V/m ]) was about 3.5. In contrast, in the storage box 100 of the present embodiment, the ratio of the maximum value of the electric field intensity (4164[ V/m ]) to the minimum value of the electric field intensity (1622[ V/m ]) is about 2.6. In this way, in the storage container 10 of the present embodiment, a more uniform electric field can be formed in the storage chamber S10. Therefore, the electric field can be formed for the stored material existing in any region of the storage chamber S10, thereby more reliably obtaining the effect that should be obtained originally. In addition, in the storage container 10 of the present embodiment, the voltage generated from the voltage applying device 80 can be reduced in a state where the electric field strength in the bottom wall portion 45 as the opposing wall portion is maintained, as compared with the storage container 100 of the comparative example. Therefore, since the transformer 81 having a smaller capacity can be used in the voltage application device 80, the voltage application device 80 can be reduced in weight. Therefore, when the voltage application device 80 is incorporated in the storage container 10, the weight of the voltage application device 80 can be reduced, thereby making the entire storage container 10 lighter than conventional storage containers. Further, if the voltage generated by the voltage applying device 80 can be suppressed to a low voltage, various effects such as improvement of safety, possibility of cost reduction, and increase in the maximum placement amount of the storage 10 due to weight reduction can be expected.

On the other hand, in the conventional storage container, in order to obtain a higher effect in terms of ensuring the freshness of fresh food, etc., it is necessary to form an electric field having a higher intensity. That is, a higher voltage needs to be applied to the electrodes. In order to meet such a demand, a plurality of modes such as a voltage mode corresponding to a high voltage as well as a voltage mode corresponding to a low voltage are provided as modes of a voltage applied from the voltage applying device to the electrode. To achieve multiple voltage modes, the capacity of the transformer corresponding to them is required. As a result, a plurality of transformers must be mounted in the conventional storage. This causes an increase in the weight of the voltage application device and thus an increase in the weight of the entire storage.

In contrast, in the storage container 10 of the present embodiment, as described above, since a more uniform electric field can be formed in the storage container 10, even if the number of voltage patterns is reduced, there is a high possibility that a sufficient electric field strength is obtained. The capacity of the transformer can be reduced if the number of voltage modes can be reduced. That is, the number of transformers 81 can be reduced. Therefore, in the housing 10 of the present embodiment, the total weight and the total volume of the transformer 81 can be reduced as compared with the conventional housing.

Specifically, in the conventional storage box, as the voltage pattern to be applied from the voltage applying device to the electrode, for example, a voltage pattern set for every 1[ kV ] in the range of 2[ kV ] to 7[ kV ] is used, and a total of 6 voltage patterns are used. To realize the 6 voltage modes, the voltage applying device requires 6 transformers. Therefore, if the weight of each 1 transformer is "6 [ kg ]", the total weight of the transformer is "36 [ kg ] (═ 6[ kg ] × 6)". In contrast, in the storage case 10 of the present embodiment, the number of transformers 81 can be made smaller than 6, and therefore the total weight of the transformers can be made smaller than "36 [ kg ].

Similarly, if the volume of each transformer is "0.00594 [ m ]³]", in the conventional storage box, the total volume of the transformer is" 0.03564[ m ]³](＝0.00594[m³]X 6) ". In contrast, in the storage case 10 of the present embodiment, since the number of transformers 81 can be made smaller than 6, the total volume of the transformers 81 can be made smaller than "0.03564 [ m ]³]”。

In the storage container 10 of the present embodiment, the electrode 70 is provided on the inner surface of the upper wall portion 41 of the storage container body 20. This makes it difficult for the objects stored in the storage case main body 20 to come into contact with the electrode 70, and thus, for example, breakage of the electrode 70 can be easily avoided.

Further, in the storage container 10 of the present embodiment, the inner surface of the upper wall portion 41 of the storage container body 20 on which the electrodes 70 are arranged is insulated over the entire surface or most of the surface by the insulating member 61. The inner surfaces of the right side wall 42, the left side wall 43, and the back wall 44 of the storage container body 20 and the inner surface of the door 50 are insulated over the entire surface or most of them by insulating members 62 to 65. With these configurations, the electric field in the direction from the electrode 70 toward the bottom wall portion 45 of the storage case main body 20 can be more reliably formed, and thus the variation in the distribution of the electric field intensity can be further suppressed.

In the storage container 10 of the present embodiment, a plate-shaped insulating member 61 made of a member different from the storage container body 20 is attached to the upper wall portion 41 of the storage container body 20. Further, sheet-shaped insulating members 62 to 65 made of different members are bonded to the inner surfaces of the right side wall portion 42, the left side wall portion 43, and the back wall portion 44 of the storage container body 20 and the inner surface of the door portion 50. According to these configurations, even when the storage body 20 is electrically grounded, the insulating members 61 to 65 are additionally provided, so that only the inner surface of the bottom wall portion 45 of the storage body 20 can be electrically grounded easily.

The above embodiment can be implemented by the following embodiments.

The inner surfaces of the right side wall 42, the left side wall 43, and the back wall 44 of the storage container body 20 and the inner surface of the door 50 may be formed in advance of an insulating material such as resin.

The inner surface of the upper wall portion 41 of the storage case main body 20 does not necessarily need to be insulated over the entire surface. For example, as shown in fig. 8, the inner surface of the upper wall portion 41 of the storage case main body 20 may be partially not covered with the insulating member 61.

The inner surfaces of the right side wall 42, the left side wall 43, and the back wall 44 of the storage body 20 and the inner surface of the door 50 do not necessarily have to be insulated over the entire surface. For example, as shown in fig. 9 and 10, the inner surfaces of the right side wall portion 42, the left side wall portion 43, and the back wall portion 44 of the storage container body 20 and the inner surface of the door portion 50 may be partially not covered with the insulating members 62 to 65.

In the storage case main body 20, the inner surface of the bottom wall portion 45 corresponding to the opposing wall portion may be electrically grounded, a part or all of the inner surface of the upper wall portion 41 corresponding to the predetermined wall portion may be electrically insulated, and a part or all of the inner surface of at least one of the right side wall portion 42, the left side wall portion 43, the back wall portion 44, and the door portion 50 corresponding to the non-opposing wall portion may be electrically insulated. For example, the inner surface of the bottom wall portion 45 may be electrically grounded, and a part or all of the inner surfaces of each of the upper wall portion 41, the right side wall portion 42, the left side wall portion 43, and the back wall portion 44 may be covered with an insulating member, and the inner surface of the door portion 50 may not be covered with an insulating member. In this case, the right side wall portion 42, the left side wall portion 43, and the back wall portion 44 correspond to the remaining wall portions of the plurality of wall portions of the storage body 20 except for the upper wall portion 41 as the predetermined wall portion, the bottom wall portion 45 as the opposing wall portion, and the door portion 50.

The electrode 70 is not limited to the upper wall portion 41 provided on the storage body 20, and may be provided on any one of the right side wall portion 42, the left side wall portion 43, the back wall portion 44, the bottom wall portion 45, and the door portion 50 of the storage body 20, and the direction of application of the electric field in the storage chamber S10 is arbitrary. For example, as shown in fig. 11, when the electrode 70 is provided on the right side wall portion 42 of the container body 20, the insulating members 61 to 65 may be provided on the inner surfaces of the upper wall portion 41, the right side wall portion 42, the back wall portion 44, and the bottom wall portion 45 of the container body 20 and the inner surface of the door portion 50. The inner surface of the left side wall 43 of the storage body 20 may be electrically grounded. In this case, the direction of application of the electric field in the storage chamber S10 is the left-right direction. In the storage container 10 shown in fig. 11, the right side wall portion 42 of the storage container body 20 corresponds to a predetermined wall portion, the left side wall portion 43 of the storage container body 20 corresponds to an opposing wall portion, and the upper wall portion 41, the back wall portion 44, the bottom wall portion 45, and the door portion 50 of the storage container body 20 correspond to non-opposing wall portions.

The structure of the storage body 20 can be changed as appropriate. For example, a plurality of storage chambers may be formed inside the storage body 20. The storage container body 20 is not limited to the structure having the door 50 on the front surface, and may have the door 50 on the upper surface. The storage container body 20 is not limited to a structure having a pair of door portions 50, and may have a structure having only one door portion or a structure having 3 or more door portions.

The storage 10 is not limited to a refrigerator, and may be a room temperature storage, a heating storage, a freezer, or the like.

The present invention is not limited to the specific examples described above. The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. The elements, their arrangement, conditions, shapes, and the like included in the above-described specific examples are not limited to those illustrated in the examples, and can be appropriately modified. Each element included in each specific example described above can be appropriately combined without causing any technical contradiction.

Description of the symbols

An S10 … storage room, a 10 … storage room, a 20 … storage room body, a 41 … upper wall portion (wall portion, predetermined wall portion), a 42 … right side wall portion (wall portion, non-opposing wall portion), a 43 … left side wall portion (wall portion, non-opposing wall portion), a 44 … back wall portion (wall portion, non-opposing wall portion), a 45 … bottom wall portion (wall portion, opposing wall portion), a 50 … door portion (wall portion, non-opposing wall portion), 61-65 … insulating members, a 70 … electrode, an 81 … transformer, an 82 … control panel, a 600 … insulating material, a 601 … material, and a 602 … insulating material.

Claims

1. A storage, comprising:

a storage body having a storage chamber therein;

an electrode provided on an inner surface of a predetermined wall portion constituting a part of an outer wall of the storage body, the electrode forming an electric field in the storage chamber;

when a wall portion disposed to face the predetermined wall portion among a plurality of wall portions constituting an outer wall of the storage body is an opposing wall portion, and a plurality of remaining wall portions other than the predetermined wall portion and the opposing wall portion are a plurality of non-opposing wall portions,

the inner surfaces of the opposing wall portions are electrically grounded,

a part or all of the inner surface of the prescribed wall portion is electrically insulated,

a portion or all of an inner surface of at least one of the plurality of non-opposing wall portions is electrically insulated.

2. The storage of claim 1,

the storage main body is formed in a rectangular box shape,

the predetermined wall portion is an upper wall portion of the storage body,

the opposing wall portion is a bottom wall portion of the storage body,

the plurality of non-opposing wall portions are the remaining wall portions of the plurality of wall portions of the storage container body, excluding the upper wall portion, the bottom wall portion, and the door portion.

3. The storage of claim 1 or 2,

the predetermined wall portion is electrically insulated over the entire surface.

4. The receptacle of any one of claims 1 to 3,

the non-opposing wall portions are electrically insulated over the entire surfaces.

5. The receptacle of any one of claims 1 to 4,

an insulating member made of a member different from the storage box main body is provided on the predetermined wall portion and the non-opposing wall portion.

6. The storage of claim 5,

the insulating member is integrally formed of an insulating material.

7. The storage of claim 5,

the insulating member is formed by applying an insulating material around a predetermined material.

8. The repository of any one of claims 1 to 7, further comprising:

a transformer that applies a voltage to the electrodes; and

a control panel that controls the transformer;

the total weight of the transformer is less than 36 kg.

9. The receptacle of any one of claims 1 to 8,

the storage is new or second-hand goods.