CN113544067B

CN113544067B - Storage warehouse

Info

Publication number: CN113544067B
Application number: CN202080016740.8A
Authority: CN
Inventors: 大野正树; 大平刚
Original assignee: Mars Inc
Current assignee: Mars Inc
Priority date: 2019-10-21
Filing date: 2020-10-12
Publication date: 2023-06-23
Anticipated expiration: 2040-10-12
Also published as: CN113544067A; JP7349102B2; WO2021079772A1; JP2023107835A; JP2021066449A; JP7441451B2

Abstract

The invention can maintain the freshness of the object for a long time. The container (1) has: a container body (2) having a storage chamber (20) for storing an object; and an electrode (5) provided in the housing chamber (20) for forming an electric field in the housing chamber (20). The electrode (5) further comprises: support parts (51, 52) supported on the inner wall of the storage chamber (20); and a protruding portion (53) protruding from the support portions (51, 52) into the storage chamber (20). The separation distance (D1) between the protruding part (53) and the inner wall is greater than the separation distance (D2) between the supporting parts (51, 52) and the inner wall.

Description

Storage warehouse

Technical Field

The present invention relates to a storage library.

Background

As described in patent document 1, it is known that fresh food can be kept fresh for a longer period of time than when no electric field is formed by forming an electric field in a container as a storage tank and storing the fresh food in an atmosphere in which the electric field is formed. The container of patent document 1 is configured such that a plate-like electrode in which a large number of small holes are regularly formed is used as an electrode for forming an electric field in the container, and the electrode is disposed on the bottom surface, the side surface, or the top surface in the container.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2012-250773

Disclosure of Invention

Technical problem to be solved by the invention

However, in patent document 1, since the electrode for forming the electric field is flat, the separation distance between the electrode and the inner surface of the container is liable to be small. Therefore, an electric field is easily formed between the electrode and the inner surface of the container, and it is difficult to efficiently apply the electric field to cool the fresh food in the container.

The purpose of the present invention is to provide a storage library that can efficiently apply an electric field to a stored object (particularly, fresh food) and keep the object fresh for a longer period of time.

Means for solving the problems

The above object is achieved by the present invention as described below.

(1) A memory bank comprising:

a storage main body having a storage chamber for storing an object;

an electrode provided in the housing chamber for forming an electric field in the housing chamber, the electrode having: a support part which is supported on the inner wall of the storage chamber; and

a protruding portion protruding from the support portion into the storage chamber,

the protruding portion is separated from the inner wall by a distance greater than the supporting portion.

(2) The storage library according to the above (1), wherein the electrode is provided on the top surface of the storage chamber.

(3) The storage library according to the above (2), wherein the protruding portion has a flat plate-like base portion provided along the top surface.

(4) The storage library according to the above (3), wherein the base has a concave portion concave toward the top surface side.

(5) The memory bank according to any one of the above (1) to (4), wherein the memory bank has an insulator interposed between the electrode and the memory bank main body to insulate the electrode from the memory bank main body.

(6) The storage library according to the above (5), wherein:

a support member fixed to the storage main body via the insulator, the support member having an insertion hole into which the support member can be inserted; and

and a fixing member that is inserted into the insertion hole together with the support portion, and that fixes the support portion to the support member by sandwiching the support portion between the fixing member and the support member.

(7) The memory bank according to any one of (1) to (6) above, wherein a state of the electric field changes with time.

(8) The memory bank according to any one of the above (1) to (7), wherein there are a plurality of the electrodes,

The plurality of electrodes are applied with different voltages.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the separation distance between the storage main body and the protruding portion of the electrode can be increased, so that an electric field can be effectively formed in the storage chamber. Therefore, the electric field can be efficiently applied to the object (particularly, fresh food) stored in the storage chamber, and the freshness of the object can be maintained for a longer period of time.

Drawings

Fig. 1 is a perspective view showing the whole of the container of embodiment 1.

Fig. 2 is a sectional view showing the inside of the container body.

Fig. 3 is a plan view showing the electric field forming apparatus provided in the container body.

Fig. 4 is a perspective cross-sectional view showing a fixture and an electrode included in the electric field generating apparatus.

Fig. 5 is a cross-sectional view showing a fixture and an electrode included in the electric field generating apparatus.

Fig. 6 is a cross-sectional view showing a modification of the electrode.

Fig. 7 is a cross-sectional view showing a modification of the electrode.

Fig. 8 is a cross-sectional view showing a modification of the electrode.

Fig. 9 is a cross-sectional view showing a fixture and an electrode included in the electric field generating apparatus.

Fig. 10 is a cross-sectional view showing a fixture and an electrode included in the electric field generating apparatus.

Fig. 11 is a cross-sectional view showing a wind-proof member provided inside a container body.

Fig. 12 is a cross-sectional view showing a wind-proof member provided inside the container body.

Fig. 13 is a sectional view for explaining the effect of the electrode.

Fig. 14 is a cross-sectional view showing a holder and an electrode included in the electric field generating device of the container according to embodiment 2.

Fig. 15 is a side view illustrating the fixing member shown in fig. 14.

Fig. 16 is a diagram showing voltages applied to electrodes of the container according to embodiment 3.

Fig. 17 is a diagram showing voltages applied to electrodes of the container according to embodiment 3.

Fig. 18 is a diagram showing voltages applied to electrodes of the container according to embodiment 3.

Fig. 19 is a diagram showing voltages applied to electrodes of the container according to embodiment 3.

Fig. 20 is a plan view showing an electrode provided in the container according to embodiment 5.

Fig. 21 is a diagram showing a voltage applied to an electrode.

Detailed Description

Embodiment 1

The container 1 (storage) shown in fig. 1 is a mobile container mounted on a truck, a ship, an airplane, or the like. The container 1 is a refrigerator, and includes: a container body 2 (storage body) having a storage chamber 20 for storing an object; a cooling device 3 for cooling the inside of the storage chamber 20; an electric field forming device 4 for forming an electric field in the housing chamber 20; and a wind shielding member 8 for shielding wind toward the electrode 5 provided in the electric field forming device 4. The container 1 is, for example, a structure conforming to international standards (ISO standards), such as a "20 foot container" having a total length of 20 feet or a "40 foot container" having a total length of 40 feet. By adopting the constitution conforming to the international standard in this way, the container 1 is excellent in convenience and versatility and also has sufficient reliability.

The container 1 does not necessarily have to meet the international standard (ISO standard), and the shape of the container 1 is not particularly limited. The container 1 may be a fixed container used in stores, warehouses, or the like, instead of a mobile container. Further, the container may be a container attached to a hopper of a truck or the like, for example. The storage tank is not limited to the container 1, and may be applied to a cooling warehouse, a refrigerator, or the like, for example.

The object is not particularly limited, and examples thereof include fish and shellfish such as fish, shrimp, crab, squid, octopus and shellfish and processed foods thereof; fruits such as strawberry, apple, banana, orange, grape, pear, etc., and processed foods thereof; vegetables such as cabbage, lettuce, cucumber, and tomato, and processed foods thereof; fresh foods such as beef, pork, chicken, horse meat, etc.; milk, cheese, yogurt, and the like. Among them, fresh foods are particularly preferred as the target. The object will be described below as a fresh food.

The container body 2 is grounded in use. I.e. to the ground. The container body 2 has a substantially rectangular parallelepiped shape extending in the depth direction, and a storage chamber 20 for storing objects is provided therein. The container main body 2 is mainly composed of an inner wall, an outer wall, and a heat insulating material provided between the inner wall and the outer wall, and the housing chamber 20 is sufficiently heat-insulated, and is configured to be hardly affected by the outside air temperature. By adopting such a configuration, the inside of the storage chamber 20 can be efficiently cooled by the cooling device 3. Although not particularly limited, the inner wall and the outer wall may be made of various metals such as stainless steel and aluminum.

A pair of

doors

21 and 22 are provided at the front end of the container body 2 in fig. 1. Further, by opening the

doors

21 and 22, the object can be carried into the storage chamber 20 or carried out of the storage chamber 20. The arrangement and configuration of the

doors

21 and 22 are not particularly limited. On the other hand, a cooling device 3 is provided at the rear end of the container body 2 in fig. 1. In the container 1 of the present embodiment, the wall located at the rear end portion of the container body 2 in fig. 1 is constituted by the panel of the cooling device 3, but the present invention is not limited thereto, and may be constituted by the wall of the container body 2.

As shown in fig. 2, the cooling device 3 includes: a suction unit 31 that is provided at the rear end of the housing chamber 20 when viewed from the

doors

21 and 22, and sucks air in the housing chamber 20; a cooling device 32 that cools the air sucked from the suction unit 31; a blowing unit 33 that blows cool air, which is air cooled by the cooling device 32, into the storage compartment 20; and a temperature sensor 34 that detects the temperature in the storage chamber 20.

The blowing unit 33 is provided near the bottom surface 202 of the storage compartment 20, and blows cool air toward the bottom surface 202. The cool air blown out from the blowing-out portion 33 flows along the plurality of grooves 24 formed along the longitudinal direction of the container body 2 in the bottom surface 202 of the storage chamber 20, collides with the

doors

21 and 22, and rises immediately before the doors, and reaches the top surface 201 of the storage chamber 20. On the other hand, the intake portion 31 is provided near the top surface 201 of the storage compartment 20, and sucks cool air rising from the bottom surface 202 to the top surface 201 or the vicinity thereof. The temperature and the air volume of the cool air are controlled so that the temperature in the storage chamber 20 detected by the temperature sensor 34 reaches the target temperature.

According to this configuration, the cold air can be circulated efficiently over the entire range of the storage chamber 20, and the temperature in the storage chamber 20 can be maintained at the target temperature, so that the object X stored in the storage chamber 20 can be cooled uniformly and appropriately. The possible set temperature in the storage chamber 20 is not particularly limited, and is preferably about-30 to +30 ℃. The configuration and arrangement of the cooling device 3 are not particularly limited, and the inside of the storage chamber 20 may be cooled.

The electric field forming device 4 has a function of forming an electric field in the housing chamber 20 and applying the formed electric field to the object housed in the housing chamber 20. As shown in fig. 3, the electric field forming apparatus 4 includes: a plurality of electrodes 5 provided in the housing chamber 20; a fixing member 6 for fixing each electrode 5 to the top surface 201 of the housing chamber 20; and a voltage applying device 7 for applying a driving voltage for forming an electric field to each electrode 5.

The fixing member 6 has a plurality of fixing rail pairs 60 for fixing 1 electrode 5 to the top surface 201 of the housing chamber 20. The plurality of fixing rail pairs 60 are arranged in a matrix along the longitudinal direction and the width direction of the container body 2. In addition, the adjacent pairs of fixed rails 60 are disposed apart from each other to be electrically insulated.

In the present embodiment, 3 pairs of fixing rails 60 are arranged in parallel along the width direction of the

container body

2, and 8 pairs of fixing rails 60 are arranged in parallel along the longitudinal direction of the container body 2. That is, 24 pairs of fixed rail pairs 60 in total are regularly provided on the top surface 201. The number and arrangement of the pair of fixing rails 60 are not particularly limited, and can be appropriately set according to the size, application, and the like of the container body 2.

Next, the configuration of the fixed rail pairs 60 will be described, but since the fixed rail pairs 60 have the same configuration, the following description will be made with 1 fixed rail pair 60 as a representative, and the description of the remaining fixed rail pairs 60 will be omitted. As shown in fig. 4, the pair of fixed rails 60 has a pair of fixed

rails

61, 65 supporting the corresponding 1 electrode 5. The fixed rails 61, 65 are fixed to the top surface 201 of the housing chamber 20, respectively. The fixing rails 61 and 65 are arranged in the width direction of the container body 2, and extend parallel to each other along the longitudinal direction of the container body 2.

The fixed rail 61 includes an electrode support rail 62 (support member) having conductivity and an insulating block 63 (insulator) interposed between the electrode support rail 62 and the top surface 201, i.e., the container body 2, is insulated from the electrode support rail 62 by the insulating block 63. The insulating block 63 has a block-shaped 1 st portion 631 and a plate-shaped 2 nd portion 632. The 1 st and 2

nd portions

631 and 632 are formed separately and fixed by, for example, screws. Similarly, the fixed rail 65 includes an electrode support rail 66 having conductivity, and an insulating block 67 interposed between the electrode support rail 66 and the top surface 201, that is, the container body 2, is insulated from the electrode support rail 66 by the insulating block 67. The insulating block 67 has a block-shaped 1 st portion 671 and a plate-shaped 2 nd portion 672. The 1 st and 2

nd portions

671 and 672 are formed separately and fixed by, for example, screws.

Although not shown, in the present embodiment, the insulating

blocks

63 and 67 are screwed to the top surface 201, and the electrode support rails 62 and 66 are screwed to the insulating

blocks

63 and 67. The method of fixing the insulating

blocks

63 and 67 to the top surface 201 and the method of fixing the electrode support rails 62 and 66 to the insulating

blocks

63 and 67 are not particularly limited.

The constituent material of each

electrode support rail

62, 66 is not particularly limited, and may be conductive, and various metal materials such as aluminum and stainless steel may be used. The constituent material of each insulating

block

63, 67 is not particularly limited, and may have insulating properties, and for example, various resin materials such as polyvinyl chloride (PVC), various ceramic materials such as alumina and titania, magnetic materials mainly composed of quartz used for an insulator, various glass materials, and the like may be used.

The electrode support rail 62 has an insertion hole 621, and the insertion hole 621 extends along the longitudinal direction of the electrode support rail 62, penetrates both end surfaces in the longitudinal direction, and opens at the side surface on the electrode support rail 66 side. That is, the electrode support rail 62 has a substantially C-shaped cross-sectional shape, and the opening 621a that is a side face is tubular toward the other electrode support rail 66 side. Similarly, the electrode support rail 66 has insertion holes 661 that extend along the longitudinal direction of the electrode support rail 66, penetrate through both end surfaces in the longitudinal direction, and open at the side surface on the electrode support rail 62 side. That is, the electrode support rail 66 has a substantially C-shaped cross-sectional shape, and the opening 661a that is a side surface is tubular toward the other electrode support rail 62 side. The

support portions

51 and 52, which will be described later, of the electrode 5 are inserted into the insertion holes 621 and 661.

Here, the electrode 5 will be described first. As described above, the number of the pair of fixing rails 60 is 3 along the width direction of the

container body

2, 8 along the length direction of the

container body

2, and 24 in total, and 1 electrode 5 is fixed to each pair of fixing rails 60. That is, the number of electrodes 5 is 3 along the width direction of the

container body

2, and 8 along the length direction of the

container body

2, and 24 in total.

For example, a plurality of electrodes 5 may be fixed to 1 pair of fixed rails 60, or conversely, 1 electrode 5 may be fixed to a plurality of pairs of fixed rails 60. The electrodes 5 may be arranged not in a regular matrix, and for example, the electrodes 5 may be arbitrarily removed from a 3×8 matrix.

Since the respective electrodes 5 have the same configuration, the following description will be given with 1 electrode 5 as a representative, and the description of the remaining electrodes 5 will be omitted. As shown in fig. 4, the electrode 5 is provided on the top surface 201 of the housing chamber 20 via the pair of fixed rails 60. By providing the electrode 5 on the top surface 201, a wider storage space 200 (see fig. 2) for the object formed between the bottom surface 202 and the electrode 5 can be ensured. In addition, for example, when the object is carried into the storage chamber 20 or carried out of the storage chamber 20 by using a forklift or the like, the electrode 5 is prevented from being obstructed, and the carrying in/out can be performed safely and smoothly. The arrangement of the electrodes 5 is not particularly limited, and may be provided on the side surface (one side or both sides) of the storage chamber 20 via the pair of guide rails 60, or may be provided on the bottom surface 202 via the pair of fixed guide rails 60, for example.

The electrode 5 is provided in the housing chamber 20 in a peeled state, that is, in a bare state. In other words, the electrode 5 is not housed in or covered by another member. Thus, the housing space 200 can be ensured to be wider without providing an unnecessary part around the electrode 5.

The electrode 5 is formed by bending a conductive plate material convexly or concavely along a folding line extending in the longitudinal direction of the container body 2. The electrode 5 has a substantially omega-shaped cross-sectional shape and has a long shape extending along the longitudinal direction of the container body 2. The constituent material of the electrode 5 is not particularly limited, and may be any conductive material, and for example, various metal materials such as aluminum and stainless steel can be used.

The electrode 5 has: a pair of

support portions

51, 52 arranged in the width direction (width direction of the container body 2); and a protruding portion 53 located between the supporting

portions

51, 52 and protruding downward from the supporting

portions

51, 52.

The protruding portion 53 has: a base 531 located at the widthwise central portion, which is formed in a convex shape protruding downward by bending both widthwise end portions upward; a connecting portion 532 that connects one end portion of the base portion 531 in the width direction with one support portion 51; and a connecting portion 533 connecting the other end portion in the width direction of the base portion 531 with the other support portion 52. The base 531 is formed in a flat plate shape and is disposed substantially parallel to the top surface 201. The upper surface of the base 531 is located below the lower surfaces of the

support portions

51 and 52. Therefore, the separation distance D1 of the protruding portion 53 from the top surface 201 is greater than the separation distance D2 of the supporting

portions

51, 52 from the top surface 201. That is, D1 > D2. The separation distance D1 represents the average separation distance between the protruding portion 53 and the top surface 201, and the separation distance D2 represents the average separation distance between the supporting

portions

51 and 52 and the top surface 201.

Further, a plurality of concave portions 531a slightly concave toward the top surface 201 side are formed in the base portion 531. The plurality of concave portions 531a are each formed in a long shape extending in the width direction of the electrode 5, are spaced apart at equal intervals in the length direction of the electrode 5, and are regularly arranged. As shown in fig. 5, the recess amount of each recess 531a is approximately the thickness of the electrode 5, and is formed very shallow as compared with the protruding amount of the protruding portion 53. Therefore, the base 531 also satisfies the aforementioned relationship of D1 > D2 at each concave portion 531a. The concave portion 531a may be omitted.

The

connection portions

532 and 533 are each flat plate-shaped, and are inclined with respect to the base portion 531 so that the inclination angle θ with respect to the base portion 531 is lower than 90 °. That is, the

connection portions

532, 533 are provided in a tapered shape in which the separation distance from each other decreases from the top surface 201 side toward the bottom surface 202 side. Therefore, the protruding portion 53 has a trapezoidal shape. The inclination angle θ is not particularly limited, and may be 90 ° or more.

The support portion 51 includes: a substantially U-shaped groove forming portion 511 having a groove 511a opened downward and along the fixed rail 61; and a flat plate-like flat portion 512 located between the groove forming portion 511 and the connecting portion 532, and substantially parallel to the top surface 201. Similarly, the support portion 52 includes: a substantially U-shaped groove forming portion 521 having a groove 521a opened downward and along the fixed rail 65; and a flat plate-like flat portion 522 located between the groove forming portion 521 and the connection portion 533, substantially parallel to the top surface 201.

The structure of the electrode 5 is described above. As described above, in the present embodiment, the electrode 5 is formed by bending the plate-like electrode member, but the method of forming the electrode 5 is not particularly limited. For example, the electrode 5 may be formed by extrusion molding. In the present embodiment, the thickness of the electrode 5 is substantially uniform over the entire range, but the present invention is not limited thereto, and a part may have a thickness different from that of the other part.

In the present embodiment, the protruding portion 53 is curved in a trapezoidal shape, but the shape of the protruding portion 53 is not particularly limited, and may protrude downward from the

support portions

51 and 52, and may be, for example, a shape curved downward in a semi-cylindrical shape as shown in fig. 6, or a shape curved in a V-shape with the base 531 omitted as shown in fig. 7. In the present embodiment, the electrode 5 is peeled off, but the present invention is not limited thereto, and for example, as shown in fig. 8, an insulating film 59 may be provided on the lower surface of the electrode 5. This prevents the object X stored in the storage chamber 20 from coming into contact with the electrode 5, thereby improving the safety of the container 1.

In the electrode 5 having such a structure, as shown in fig. 4 and 5, the support portion 51 is inserted into the insertion hole 621 of the electrode support rail 62, and the support portion 52 is inserted into the insertion hole 661 of the electrode support rail 66. As described above, by inserting the

support portions

51 and 52 into the insertion holes 621 and 661, the electrode 5 can be supported by the fixed

rails

61 and 65 with a simple configuration. Since the insertion holes 621 and 661 are opened at both ends of the electrode support rails 62 and 66 as described above, the electrode 5 can be easily attached to the fixed

rails

61 and 65 by inserting the

support portions

51 and 52 into the insertion holes 621 and 661 from the openings on the

doors

21 and 22 side of the container main body 2, for example.

Returning to the description of the pair of fixed rails 60, as shown in fig. 4 and 5, the insertion holes 621, 661 are formed sufficiently large with respect to the

support portions

51, 52 so that the

support portions

51, 52 are slidable therein. Therefore, the positioning of the electrode 5 in the housing chamber 20 becomes easy. As shown in fig. 5, the width W of the

openings

621a, 661a of the insertion holes 621, 661 is larger than the thickness T of the

flat portions

512, 522 of the

support portions

51, 52 and smaller than the height H of the groove forming portions 511, 521. That is, the relationship of T < W < H is satisfied. By satisfying such a relationship, the

support portions

51 and 52 can slide freely in the insertion holes 621 and 661, and the

support portions

51 and 52 can be prevented from being separated from the insertion holes 621 and 661 through the

openings

621a and 661 a.

As shown in fig. 4 and 5, the fixed rail 61 further has an elongated electrode fixed rail 64 (fixed member) inserted into the groove 511a of the groove forming portion 511, wherein the groove forming portion 511 is inserted into the insertion hole 621. On the other hand, as shown in fig. 9, a plurality of screw holes 622 penetrating the lower surface of the electrode support rail 62 and the inner surface of the insertion hole 621 are formed in the electrode support rail 62, and the plurality of screw holes 622 are provided at substantially equal intervals along the longitudinal direction of the electrode support rail 62. In each screw hole 622, an electrode fixing screw S1 is screwed, and the electrode fixing screw S1 is used to clamp and fix the support portion 51 between the electrode fixing rail 64 and the electrode support rail 62.

Similarly, as shown in fig. 4 and 5, the fixed rail 65 has an elongated electrode fixed rail 68 inserted into the groove 521a of the groove forming portion 521, the groove forming portion 521 being inserted into the insertion hole 661. On the other hand, as shown in fig. 9, a plurality of screw holes 662 penetrating the lower surface of the electrode support rail 66 and the inner surface of the insertion hole 661 are formed in the electrode support rail 66, and the plurality of screw holes 662 are provided at equal intervals along the longitudinal direction of the electrode support rail 66. In each screw hole 662, an electrode fixing screw S2 is screwed, and the electrode fixing screw S2 is used to clamp and fix the support portion 52 between the electrode fixing rail 68 and the electrode support rail 66.

When the electrode fixing screws S1 and S2 are screwed, the amount of protrusion of the electrode fixing screws S1 and S2 into the insertion holes 621 and 661 increases, and the

electrode fixing rails

64 and 68 are pressed by the electrode fixing screws S1 and S2 to move upward. As shown in fig. 9, the

support portions

51 and 52 are sandwiched between the

upper surfaces

641 and 681 of the

electrode fixing rails

64 and 68 and the

top surfaces

621b and 661b of the insertion holes 621 and 661, and the electrode 5 is fixed to the electrode support rails 62 and 66 by friction force generated therebetween. In addition, the electrode support rail 62 is in contact with the electrode 5, and both are electrically connected.

Conversely, when the electrode fixing screws S1 and S2 are loosened, the amount of protrusion of the electrode fixing screws S1 and S2 into the insertion holes 621 and 661 decreases, and the

electrode fixing rails

64 and 68 move downward accordingly. Then, as shown in fig. 10, the

support portions

51, 52 are released from between the

upper surfaces

641, 681 of the electrode fixing rails 64, 68 and the

top surfaces

621b, 661b of the insertion holes 621, 661, and the fixation of the electrode 5 to the electrode support rails 62, 66 is released. In this state, the electrode 5 is slidable with respect to the electrode support rails 62, 66. With such a configuration, for example, it is easy to remove and clean the dirty electrode 5 or to remove and replace the bad electrode 5.

Returning to fig. 3, a wind-proof member 8 is provided on the top surface 201 of the container body 2, and when the

doors

21 and 22 are opened, the wind-proof member 8 suppresses the inflow of air flow (particularly, upward air flow) from the outside of the container between the electrode 5 and the top surface 201. The wind-proof member 8 has electrical insulation properties, and as a constituent material, various resin materials such as polyvinyl chloride (PVC), various ceramic materials such as alumina and titania, magnetic materials mainly composed of quartz used for insulators, various glass materials, and the like can be used.

The wind-break member 8 is provided between the

electrodes

5x, 5y, 5z located closest to the

doors

21, 22 and the

doors

21, 22. The wind-proof member 8 is formed in a plate shape extending in the width direction of the storage chamber 20, and protrudes downward from the top surface 201. As shown in fig. 11 and 12, the wind-proof member 8 is provided so as to close at least a part of the opening Q formed between the electrode 5 and the top surface 201 when the housing chamber 20 is seen in a plan view from the

door

21, 22 side. In particular, in the present embodiment, the lower end of the wind-shielding member 8 is located below the electrode 5, and therefore the wind-shielding member 8 closes the entire range of the opening Q.

Such a wind shielding member 8 can effectively prevent dust, dirt, dust, or the like from adhering to the top surface 201 and the electrode 5 and contaminating the corresponding portions by suppressing the flow of air from the opening Q to the space between the electrode 5 and the top surface 201. The structure of the wind-proof member 8 is not particularly limited, and may be capable of functioning as such. The wind-proof member 8 may be omitted.

As shown in fig. 11, the wind-proof member 8 is provided with an ozone generatorA generator 81 (ozone generator). Thereby, ozone (O) can be supplied into the storage chamber 20 ₃ ) Thus, ozone (O) ₃ ) The object X stored in the storage 20 can be kept fresh more effectively by decomposing the gas generated by the object. The ozone generator 81 may be omitted.

Next, the arrangement of the plurality of electrodes 5 is explained. As described above, the number of electrodes 5 is 3 along the width direction of the

container body

2, 8 along the length direction of the

container body

2, and 24 in total. For convenience of explanation, as shown in fig. 3, among the plurality of

electrodes

5, 8 electrodes 5 which are provided at one end side in the width direction of the container body 2 and are arranged along the longitudinal direction of the container body 2 are hereinafter also referred to as "electrodes 5x", 8 electrodes 5 which are provided at the other end side in the width direction of the container body 2 and are arranged along the longitudinal direction of the container body 2 are hereinafter also referred to as "electrodes 5y", and 8 electrodes 5 which are provided at the central portion in the width direction of the container body 2, that is, between the

electrodes

5x and 5y and are arranged along the longitudinal direction of the container body 2 are hereinafter also referred to as "electrodes 5z".

Of the 8 electrodes 5x arranged along the longitudinal direction of the container body 2, an adjacent pair of

electrodes

5x, 5x is provided apart from each other with a gap G formed therebetween. By providing the gap G between the adjacent pair of

electrodes

5x, 5x in this way, the

adjacent electrodes

5x, 5x can be prevented from being in physical contact with each other, and can be electrically insulated from each other. Similarly, among the 8 electrodes 5y arranged along the longitudinal direction of the container body 2, the adjacent pair of

electrodes

5y, 5y are provided apart from each other with a gap G formed therebetween. Among the 8 electrodes 5z arranged along the longitudinal direction of the container body 2, a pair of

adjacent electrodes

5z, 5z are provided separately, and a gap G is formed therebetween.

The electrodes 5x are connected in series via an electrical connection member 9 that electrically connects between the adjacent pair of electrode support rails 62, 62. Similarly, each electrode 5y is connected in series by an electrical connection member 9 electrically connecting between the adjacent pair of electrode support rails 62, and each electrode 5z is connected in series by an electrical connection member 9 electrically connecting between the adjacent pair of electrode support rails 62, 62. The 3

electrodes

5x, 5y, 5z are electrically connected to the voltage applying device 7. The electrical connection member 9 is not particularly limited, and for example, an electrical wiring can be used.

The voltage applying device 7 includes, for example, a high-voltage transformer, and applies an alternating voltage Vac for forming an electric field to each electrode 5 (5 x, 5y, 5 z). By applying an alternating voltage Vac to each electrode 5 by the voltage applying device 7, an electric field is formed in the housing chamber 20 based on the potential difference between each

electrode

5x, 5y, 5z and the container body 2 connected to the ground. By applying this electric field to the object stored in the storage chamber 20, the object X can be accelerated to be ripe while maintaining its freshness. Therefore, the edible object can be stored for a longer period of time than in the case where the electric field is not formed, and the flavor of the object can be enhanced. In particular, in the present embodiment, the plurality of

electrodes

5x, 5y, 5z are regularly provided in substantially the entire range of the top surface 201, and therefore, the electric field can be effectively formed in the entire range of the housing chamber 20.

The amplitude of the alternating voltage Vac is not particularly limited, but is preferably about 0.1kV to 20kV, for example. By applying the alternating voltage Vac of such amplitude to the

electrodes

5x, 5y, 5z, an electric field of sufficient strength can be formed in the housing chamber 20, and the above-described effects can be more reliably exhibited. The frequency of the alternating voltage Vac is not particularly limited, but is preferably, for example, about 5Hz to 50 kHz. The waveform of the alternating voltage Vac may be any waveform such as a sine wave, a rectangular wave, or a sawtooth wave.

Here, according to the above-described configuration of the electrode 5, since the base 531 of the protruding portion 53 is positioned below the supporting

portions

51 and 52, and D1 > D2, an air layer having high insulation can be formed between the base 531 and the top surface 201 with a sufficient thickness, compared with the conventional flat electrode 50A having the same height as the supporting

portions

51 and 52, as shown by the chain line L1 in fig. 13, for example. Therefore, the capacitance between the base 531 and the top surface 201 is reduced as compared with the conventional one. As a result, it is difficult to form an electric field that is distributed between the base 531 and the top surface 201, and it is easy to form an electric field that is distributed in the storage space 200 of the object X located between the base 531 and the bottom surface 202. Therefore, the electric field can be efficiently and effectively applied to the object stored in the storage chamber 20. Further, since D1 > D2, the volume of the storage space 200 increases and the maximum load of the object increases as compared with, for example, the conventional type of flat electrode 50B, which is indicated by a chain line L2 in fig. 13 and corresponds to the height of the base 531. Therefore, more objects can be transported using 1 container 1, and the transport cost can be reduced.

The separation distance D1 is not particularly limited, but is preferably about 3cm to 10cm, and more preferably 4cm to 8cm, for example. With such a lower limit value, the separation distance D1 can be sufficiently increased, and the above-described effects can be more remarkably exhibited. Conversely, according to such an upper limit value, a decrease in the storage space 200, that is, a decrease in the maximum load amount of the object X, due to an excessive separation distance D1 can be suppressed. On the other hand, the separation distance D2 is not particularly limited, and may be set to satisfy the relation D1 > D2, and is preferably about 1cm to 5cm, more preferably 2cm to 3cm, for example. According to such a numerical range, the separation distance D2 can be sufficiently reduced, and the above-described effects can be more remarkably exhibited.

In particular, since the base 531 is flat plate-like and is provided in a wide range of the protruding portion 53 as described above, the occupancy rate of the portion separated by the separation distance D1 with respect to the entire electrode 5 becomes larger. Therefore, the above-described effects can be more remarkably exhibited.

As described above, the base 531 of the electrode 5 is provided with the concave portion 531a concave upward. By providing such a concave portion 531a, the mechanical strength of the electrode 5 is improved. Therefore, breakage of the electrode 5 due to impact or the like during conveyance can be effectively suppressed. Further, by providing the concave portion 531a, moisture retention adhering to the upper surface of the base portion 531 can be suppressed. Further, by providing the concave portion 531a, the concave-convex portion is formed on the lower surface of the base portion 531, and the electric field can be more efficiently formed in the storage space 200 by the concave-convex portion.

As described above, the gap G is formed between the pair of

electrodes

5, 5 adjacent to each other in the longitudinal direction of the container body 2. By forming the gap G, the state of the electric field (the direction of the electric lines of force) can be changed in the corresponding portion, and the electric field can be formed in the housing space 200 more efficiently.

< embodiment 2 >

As shown in fig. 14, in the container 1 of the present embodiment, the groove forming portion 511 is omitted from the supporting portion 51 of each electrode 5, and the entire container is constituted by a flat portion 512 having a flat plate shape substantially parallel to the top surface 201. Similarly, the groove forming portion 521 is omitted from the support portion 52 of each electrode 5, and the entire groove forming portion is formed of a flat portion 522 substantially parallel to the top surface 201. In response, the shape of the insertion holes 621 and 661 formed in the electrode support rails 62 and 66 is changed, and the entire range thereof is flat and substantially equal to the width W of the

openings

621a and 661 a.

In the present embodiment, the

electrode fixing rails

64 and 68 are omitted from the fixing rails 61 and 65. Therefore, when the electrode fixing screws S1 and S2 are fastened, the

support portions

51 and 52 are sandwiched between the electrode fixing screws S1 and S2 and the electrode support rails 62 and 67, and the electrode 5 is fixed to the electrode support rails 62 and 66 by friction force generated therebetween. Conversely, when the electrode fixing screws S1 and S2 are loosened, the

support portions

51 and 52 are released from between the electrode fixing screws S1 and S2 and the

electrode fixing rails

64 and 68, and the fixation of the electrode 5 to the electrode support rails 62 and 66 is released.

As shown in fig. 14 and 15, the insertion holes 621 are opened in the outer side surface 620 of the electrode support rail 62 at both end portions of the electrode support rail 62, and electrode connection members 10 are provided at the respective portions, and the electrode connection members 10 are disposed so as to straddle the adjacent electrode support rails 62, so as to electrically connect the electrode support rails 62, 62. The electrode connection member 10 is bent in a substantially L-shape, and includes: a portion 101 inserted into the insertion hole 621 and electrically connected to the electrode 5 by contacting the support portion 51; and a portion 102 located on an outer side 620 of the electrode support rail 62 and electrically connected to the electrode support rail 62 by contacting the electrode support rail 62. The electrode connecting member 10 is fixed to the electrode support rail 62 at the portion 102 by the fixing screw S31.

Similarly, at both end portions of the electrode support rail 66, insertion holes 661 are opened at outer side surfaces 660 of the electrode support rail 66, and electrode connection members 11 are provided at the respective portions, and the electrode connection members 11 are disposed so as to straddle the adjacent electrode support rails 66, and electrically connect the electrode support rails 66, 66. The electrode connection member 11 is bent in a substantially L-shape, and includes: a portion 111 inserted into the insertion hole 661 and electrically connected to the electrode 5 by being in contact with the support portion 52; and a portion 112 located on an outer side 660 of the electrode support rail 66 and electrically connected to the electrode support rail 66 by contacting the electrode support rail 66. The electrode connecting member 11 is fixed to the electrode support rail 66 at the portion 112 by the fixing screw S32.

For example, various metal materials such as aluminum and stainless steel may be used for the

electrode connection members

10 and 11.

Embodiment 3

In embodiment 3, the voltage applying device 7 changes the state of the electric field formed in the storage chamber 20 with time. By changing the state of the electric field in the storage chamber 20 with time, it is possible to suppress the proliferation (division) of microorganisms contained in the food, compared with a case where the state of the electric field in the storage chamber 20 is kept constant, for example. Therefore, the freshness of the object stored in the storage chamber 20 can be maintained for a longer period of time.

The reason why the state of the electric field in the storage chamber 20 is changed with time is that the microorganisms are inhibited from growing, and the microorganisms are used to a certain extent to the environment and then start to divide. By changing the state of the electric field with time, the environment can be switched to a different environment before the current environment in which the microorganisms are used, and thus the environment in which the microorganisms are used can be suppressed, and as a result, the proliferation of the microorganisms can be suppressed. Examples of the microorganisms included in the object include salmonella, enterohemorrhagic escherichia coli (O157, O111, etc.), vibrio enteritis, clostridium perfringens, staphylococcus aureus, clostridium botulinum, bacillus cereus, and norovirus, which are considered to be causes of food poisoning.

Here, the term "changing the state of the electric field with time" means, for example, changing at least one of the amplitude and the frequency of the alternating voltage Aac applied to each electrode 5 with time. The method for changing the state of the electric field with time is not particularly limited, and several methods shown below are examples.

As the 1 st method, as shown in fig. 16, there is a method of intermittently applying an alternating voltage Vac of which the reference is 0V and the amplitude and frequency are constant to each electrode 5. In fig. 16, the voltage applying device 7 alternately repeats the 1 st state in which the alternating voltage Vac is applied to each electrode 5 and the 2 nd state in which the alternating voltage Vac is not applied to each electrode 5. That is, the 1 st state in which the electric field is formed in the housing chamber 20 and the 2 nd state in which the electric field is not formed are alternately repeated. By alternately repeating the 1 st state and the 2 nd state in this manner, the state of the electric field can be changed with time with relatively simple control.

As the 2 nd method, as shown in fig. 17, there is a method of varying the amplitude of the alternating voltage Vac applied to each electrode 5 with time. The term "change the amplitude of the alternating voltage Vac with time" means that the amplitude of the alternating voltage Vac may be changed periodically or irregularly (randomly). In fig. 17, the voltage applying device 7 alternately repeats the 1 st state in which the alternating voltage Vac with the reference of 0V and the amplitude of E1 is applied to each electrode 5 and the 2 nd state in which the alternating voltage Vac with the reference of 0V and the amplitude of E2 (+.e1) is applied to each electrode 5. By alternately repeating the 1 st state and the 2 nd state, the state of the electric field can be changed with time with relatively simple control.

The amplitude E1 is preferably 2 times or more, more preferably 3 times or more, and even more preferably 4 times or more the amplitude E2. Thus, the state of the electric field in the storage chamber 20 can be sufficiently different between the 1 st state and the 2 nd state, and the condition of the microorganism habit environment can be effectively suppressed.

As the 3 rd method, as shown in fig. 18, a method of changing the frequency of the alternating voltage Vac applied to each electrode 5 with time can be mentioned. The term "change the frequency of the alternating voltage Vac with time" means that the frequency of the alternating voltage Vac may be changed periodically or irregularly (randomly). In fig. 18, the voltage applying device 7 alternately repeats the 1 st state in which the alternating voltage Vac having the frequency f1 is applied to each electrode 5 and the 2 nd state in which the alternating voltage Vac having the frequency f2 (+.f1) is applied to each electrode 5. By alternately repeating the 1 st state and the 2 nd state, the state of the electric field can be changed with time with relatively simple control.

The frequency f1 is preferably 10 times or more, more preferably 50 times or more, and even more preferably 100 times or more the frequency f 2. Thus, the state of the electric field in the storage chamber 20 can be sufficiently different between the 1 st state and the 2 nd state, and the condition of the microorganism habit environment can be effectively suppressed.

As a 4 th method, as shown in fig. 19, there is a method in which an alternating voltage Vac having a reference of 0V and constant amplitude and frequency is applied to each electrode 5, and a bias voltage Vb (constant voltage) is intermittently applied. In fig. 19, the voltage applying device 7 alternately repeats the 1 st state of the superimposed voltage Vd in which the alternating voltage Vac and the bias voltage Vb are applied to each electrode 5 and the 2 nd state of the alternating voltage Vac is applied to each electrode 5. By alternately switching the 1 st state and the 2 nd state, the state of the electric field can be changed with time with relatively simple control. In particular, in this method, since the alternating voltage Vac can be kept constant, the control is simpler than the 2 nd and 3 rd methods of changing the amplitude and frequency of the alternating voltage Vac.

The bias voltage Vb is smaller than the amplitude (maximum value) of the alternating voltage Vac. This makes it possible to set the superimposed voltage Vd to an ac voltage. Therefore, in the 1 st state, the electric field can be more reliably formed in the storage chamber 20. The bias voltage Vb is preferably 0.1 to 0.6 times, more preferably 0.2 to 0.5 times, and even more preferably 0.3 to 0.4 times the amplitude of the alternating voltage Vac. This can equalize the time when the superimposed voltage Vd is on the positive side and the time when it is on the negative side, that is, can prevent one side from being too long as compared with the other side, and can more efficiently form an electric field in the storage chamber 20 in the 1 st state. Further, the state of the electric field in the storage chamber 20 can be sufficiently changed between the 1 st state and the 2 nd state, and the condition of the microorganism habit environment can be effectively suppressed.

The above description has been made of the 1 st to 4 th methods of changing the state of the electric field with time. In any of the methods 1 to 4, the state of the electric field also varies depending on the temperature in the storage chamber 20 and the type of the object (the type of the microorganism contained in the food) stored in the storage chamber 20, but the state of the electric field is preferably changed at intervals of 1 minute or more and 60 minutes or less, more preferably at intervals of 2 minutes or more and 40 minutes or less, and still more preferably at intervals of 3 minutes or more and 30 minutes or less. In other words, the time of the 1 st and 2 nd states is preferably 1 minute to 60 minutes, more preferably 2 minutes to 40 minutes, still more preferably 3 minutes to 30 minutes, respectively. Thus, the time of the 1 st state and the time of the 2 nd state are sufficiently shortened, respectively, and the environment can be switched to a different environment before the current environment is used by the microorganism more reliably. In addition, the time of the 1 st state and the time of the 2 nd state can be prevented from being too short, and the microorganisms can be effectively prevented from returning to the original environment before starting to cope with the new environment. That is, the state of the electric field can be changed at a slightly shorter time interval than the division speed of the microorganism. This can more effectively inhibit the division of microorganisms. The time of the 1 st state and the time of the 2 nd state may be the same or different.

It is known that microorganisms (1) have a division rate of about 10 minutes to 40 minutes in a temperature range of about 10 ℃ to 40 ℃, that (2) the lower the temperature is, the slower the division rate is, (3) if the temperature is 10 ℃ or lower, the microorganisms are not substantially proliferated except for a part of the microorganisms, and that (4) the microorganisms are not substantially proliferated in total at 0 ℃ or lower. Therefore, as described above, by changing the state of the electric field at intervals of 60 minutes or less, preferably 40 minutes or less, and more preferably 30 minutes or less, the state of the electric field can be changed at intervals sufficiently shorter than the division rate of the microorganism, taking into consideration the time until the environment where the microorganism is accustomed (for example, about 10 minutes). Therefore, the proliferation of microorganisms can be more reliably suppressed.

In any of the methods 1 to 4, the electric field may be periodically changed or may be irregularly (randomly) changed. In other words, the 1 st state time and the 2 nd state time may be substantially the same each time, or the 1 st state time and the 2 nd state time may be irregularly changed each time. By periodically varying the electric field, the drive control of the voltage applying means 7 becomes simple as compared with the case of irregularly varying the electric field. On the other hand, by irregularly changing the electric field, there is a possibility that the proliferation of microorganisms can be more effectively suppressed than in the case of periodically changing the electric field. Although it is presumed that when the electric field is periodically changed, the microorganism may become accustomed to the periodic environmental change itself. In this way, even if the periodic environmental change itself is a habit of microorganisms, the growth of microorganisms can be more effectively suppressed by irregularly changing the electric field.

The above-described 1 st to 4 th methods may be appropriately combined as a method for changing the state of the electric field with time. In the above-described 1 st to 4 th methods, the 1 st state and the 2 nd state are alternately repeated, but the method is not limited thereto, and for example, at least 1 state (3 rd state, 4 th state, 5 th state …) different from the 1 st state and the 2 nd state may be provided, and the plurality of states may be sequentially repeated.

Embodiment 4

In the present embodiment, each electrode 5x, each electrode 5y, and each electrode 5z are independently connected to the voltage applying device 7. By providing 3 electric field forming systems in this manner, even if 1 electric field forming system fails, an electric field can be formed by another 2 electric field forming systems. This reduces the risk of failure to form an electric field, and can exhibit high reliability.

The voltage applying device 7 may apply voltages different from each other to the

electrodes

5x, 5y, and 5 z. That is, the container 1 has the

electrodes

5x, 5y, 5z as a plurality of electrodes, and different voltages are applied to the

electrodes

5x, 5y, 5 z. By applying voltages different from each other to the

electrodes

5x, 5y, 5z in this way, the electric field can be changed periodically or irregularly as in embodiment 2.

The voltages applied to the

electrodes

5x, 5y, 5z are not particularly limited. For example, the 1 st alternating voltage Vac1, which is a voltage applied to each electrode 5x, the 2 nd alternating voltage Vac2, which is a voltage applied to each electrode 5y, and the 3 rd alternating voltage Vac3, which is a voltage applied to each electrode 5z, may be different in frequency from each other. For example, the 1 st alternating voltage Vac1, the 2 nd alternating voltage Vac2, and the 3 rd alternating voltage Vac3 may be different in frequency and amplitude. For example, the 1 st alternating voltage Vac1, the 2 nd alternating voltage Vac2, and the 3 rd alternating voltage Vac3 may be shifted in phase by using the same waveforms.

In the present embodiment, the plurality of electrodes to which mutually different voltages are applied include the

electrodes

5x, 5y, and 5z, but the present invention is not limited thereto, and the electrodes may be configured to have at least 2 electrodes 5 and to apply mutually different voltages thereto. For example, any one of the

electrodes

5x, 5y, and 5z may be omitted, or conversely, at least 1 electrode capable of applying a voltage may be added independently of the above-described electrode.

In the present embodiment, 1 electrode group is constituted by each electrode 5x, another electrode group is constituted by each electrode 5y, and another electrode group is constituted by each electrode 5z, but the constitution of each electrode group is not limited to this. For example, each electrode group may have at least 1

electrode

5x, 5y, 5z. The number of electrodes 5 constituting each group may be different from each other. As described above, in the container 1, the electrodes 5 are provided on the top surface 201 in a mutually insulated state, and the desired electrodes 5 are electrically connected to each other by the electric connection member 9. Therefore, the configuration of each electrode group can be easily changed to the target configuration by simply changing the connection of the electrical connection member 9.

Embodiment 5

As shown in fig. 20, in the present embodiment, the electrode 5z is detached from the pair of fixed rails 60, and the container 1 has a 1 st electrode group 5A composed of 8 electrodes 5x and a 2 nd electrode group 5B composed of 8 electrodes 5 y. As shown in fig. 21, the voltage applying device 7 applies the 1 st alternating voltage Vac1 to the 1 st electrode group 5A and applies the 2 nd alternating voltage Vac2 having a phase opposite to that of the 1 st alternating voltage Vac1 to the 2 nd electrode group 5B. The 1 st alternating voltage Vac1 and the 2 nd alternating voltage Vac2 have the same waveform, and have the same frequency and amplitude.

By shifting the 1 st alternating voltage Vac1 and the 2 nd alternating voltage Vac2 by 180 ° in phase, the potential difference Δv1 between the 1 st electrode group 5A and the 2 nd electrode group 5B is larger than the potential difference Δv2 between the 1 st electrode group 5A and the container body 2 and the potential difference Δv3 between the 2 nd electrode group 5B and the container body 2. That is, Δv1 > Δv2 and Δv1 > Δv3 are defined. Therefore, an electric field is easily formed between the 1 st electrode group 5A and the 2 nd electrode group 5B, compared to between the 1 st electrode group 5A and the inner wall of the container body 2, and between the 2 nd electrode group 5B and the inner wall of the container body 2.

Therefore, the electric field can be formed over a wider range, preferably over the entire range, of the storage chamber 20, and the electric field can be efficiently applied to the object placed at any position in the storage chamber 20. The term "opposite phase" refers to a case where the phase difference between the 1 st alternating voltage Vac1 and the 2 nd alternating voltage Vac2 is exactly 180 °, and includes a case where a small error (for example, ±10%) may occur in a technique.

The memory bank of the present invention has been described above based on the illustrated embodiment, but the present invention is not limited to this. For example, the structure of each part may be replaced with an arbitrary structure that performs the same function, and an arbitrary structure may be added.

Industrial applicability

As described above, the container 1 of the present invention includes: a container body 2 having a storage chamber 20 for storing an object; and an electrode 5 provided in the housing chamber 20 for forming an electric field in the housing chamber 20. The electrode 5 further includes:

support parts

51, 52 supported on the inner wall of the storage chamber 20; and protruding portions 53 where the supporting

portions

51 and 52 protrude into the storage chamber 20. The separation distance D1 between the protruding portion 53 and the inner wall is larger than the separation distance D2 between the supporting

portions

51 and 52 and the inner wall. Therefore, it is difficult to form an electric field distributed between the protruding portion 53 and the top surface 201, and an electric field distributed in the housing space 200 located between the bottom surfaces 202 of the protruding portion 53 is easily formed. Therefore, the electric field can be efficiently and effectively applied to the object stored in the storage chamber 20.

Description of the reference numerals

1 container, 2 container main body, 20 storage room, 200 storage space, 201 top surface, 202 bottom surface, 21 door, 22 door, 24 groove, 3 cooling device, 31 suction part, 32 cooling device, 33 blowing part, 34 temperature sensor, 4 electric field forming device, 5 electrode, 5A 1 st electrode group, 5B 2 nd electrode group, 5x electrode, 5y electrode, 5z electrode, 50A plate electrode, 50B plate electrode, 51 support part, 511 groove forming part, 511a groove, 512 flat part, 52 support part, 521 groove forming part, 521a groove forming part, 522 flat part, 53 protruding part, 531 base part, 531a concave part, 532 connecting part, 533 connecting part, 59 insulating film, 6 fixing part, 60 fixing guide rail pair, 61 fixing guide rail, 62 electrode support guide rail, 621 insertion hole 621a opening 621B top surface, 622 threaded hole, 63 insulating block, 64 electrode fixing rail, 641 upper surface, 65 fixing rail, 66 electrode supporting rail, 661 insertion hole, 661a opening, 661B top surface, 662 threaded hole, 67 insulating block, 68 electrode fixing rail, 681 upper surface, 7 voltage applying device, 8 wind prevention member, 9 electric connecting member, 10 electric connecting member, 101 part, 102 part, 11 electric connecting member, 111 part, 112 part, D1 separation distance, D2 separation distance, E1 amplitude, E2 amplitude, G gap, H height, L1 chain line, L2 chain line, Q opening, S1 electrode fixing screw, S2 electrode fixing screw, S31 fixing screw, S32 fixing screw, vac alternating voltage, vac1 st alternating voltage, vac1, vac2 …, 2 nd alternating voltage, vb … bias voltage, vd … superimposed voltage, f1 … frequency, f2 … frequency, θ … tilt angle.

Claims

1. A memory bank comprising:

a storage main body having a storage chamber for storing an object; and

an electrode disposed in the housing chamber for forming an electric field in the housing chamber,

the electrode has: a support part which is supported on the top surface of the storage chamber; and

a protruding portion protruding from the support portion into the storage chamber and having a flat plate-shaped base portion provided along and parallel to the top surface,

the base of the projection is separated from the top surface by a distance greater than the support portion is separated from the top surface,

the device also comprises:

an insulator interposed between the electrode and the memory bank body to insulate the electrode from the memory bank body;

2. The storage library of claim 1, wherein,

The base portion has a recess portion recessed toward the top surface side.

3. The storage library according to claim 1 or 2, wherein,

the state of the electric field changes with time.

4. The storage library according to claim 1 or 2, wherein,

there is a plurality of said electrodes in said array,

the plurality of electrodes are applied with different voltages.