JP5699113B2 - Electrostatic field generation container - Google Patents

Description

  The present invention relates to an electrostatic field generating container for generating an electrostatic field.

  In general, it is known to preserve food by applying an electric voltage to generate an electrostatic field. For example, it is disclosed that a food is supercooled in an electrostatic field atmosphere in a food product supply storage (see, for example, Patent Document 1). In food storage facilities, it is disclosed that a large amount of food is stored in a refrigerator for a long period of time using an electrostatic field generating pallet that creates an electrostatic field atmosphere (see, for example, Patent Document 2).

JP 2005-156042 A Registered Utility Model No. 3125784

  However, none of the devices disclosed in the above-mentioned prior art documents are supposed to be transported in a state where cargo is placed in an electrostatic field atmosphere in which an electrostatic field is generated.

  Accordingly, an object of the present invention is to provide an electrostatic field generating container for transporting cargo in a state where cargo is placed in an electrostatic field atmosphere in which an electrostatic field is generated.

An electrostatic field generating container according to an aspect of the present invention is an electrostatic field generating container for generating an electrostatic field inside and transporting cargo, and is provided on a ceiling portion and has a voltage for generating the electrostatic field. an electrode to be applied, electrically insulates the frame of the said electrode electrostatic field generating container, the are electrically insulated on the inside side of the frame is Orazu, the electrode is a plate-like In addition, a hole for effectively generating an electrostatic field is provided, and the voltage is configured to generate the electrostatic field between the electrode and the frame .

  ADVANTAGE OF THE INVENTION According to this invention, the electrostatic field generation container for conveying in the state which put the cargo in the electrostatic field atmosphere which generated the electrostatic field can be provided.

The top view of the electrostatic field generation sheet | seat which concerns on the 1st Embodiment of this invention. The side view of the electrostatic field generation sheet | seat which concerns on 1st Embodiment. The block diagram which shows the structure of a container. The structure figure which shows the structure of the floor rail of a container. FIG. 3 is a layout view illustrating a side surface in a state where an electrostatic field generating sheet according to the first embodiment is disposed in a container. FIG. 3 is a layout view showing an upper surface in a state where the electrostatic field generating sheet according to the first embodiment is disposed in a container. The perspective view for demonstrating the usage method of the electrostatic field generation sheet which concerns on 2nd Embodiment. The block diagram which shows the structure of the electrostatic field generation | occurrence | production container which concerns on 3rd Embodiment. The external view which shows the shape of the aluminum plate for electrodes of the electrostatic field generation | occurrence | production container which concerns on 3rd Embodiment. The block diagram which shows the structure of the electrostatic field generation sheet | seat which concerns on 4th Embodiment. The electric circuit diagram which shows the electric circuit at the time of use of the electrostatic field generation sheet which concerns on 4th Embodiment. The block diagram which shows the structure which mounted the electrostatic field generation sheet which concerns on 4th Embodiment in the container. The block diagram which shows the structure of the electrostatic field generation sheet | seat which concerns on the modification of 4th Embodiment.

Embodiments of the present invention will be described below with reference to the drawings. The first, second, and fourth embodiments are reference examples.

(First embodiment)
FIG. 1 is a top view of an electrostatic field generating sheet 1 according to the first embodiment of the present invention. FIG. 2 is a side view of the electrostatic field generating sheet 1 according to the first embodiment. In both drawings, the same parts are denoted by the same reference numerals, detailed description thereof is omitted, and different parts are mainly described. In the following embodiments, the same description is omitted.

  The electrostatic field generating sheet 1 is configured based on an aluminum sheet SH. The upper surface of the electrostatic field generating sheet 1 is about 1100 mm × about 1100 mm. This is a surface that is the same size or slightly smaller than a commonly used pallet. The thickness of the electrostatic field generating sheet 1 is about 2 mm. The electrostatic field generating sheet 1 is provided with terminals T for connecting wires at each of the four corners. The electrostatic field generating sheet 1 is coated with an insulating paint IS on the back surface of the aluminum sheet SH.

  The aluminum sheet SH serves as an electrode to which a voltage is applied in order to generate an electrostatic field. The aluminum sheet SH is an aluminum punching plate. That is, the aluminum sheet SH has a large number of holes HL. By providing the hole HL, the effect of generating an electrostatic field is improved. Further, the hole HL has an effect of improving the air permeability of the electrostatic field generating sheet 1.

  The terminal T is a place where a wiring for applying a voltage for generating an electrostatic field is connected to the aluminum sheet SH. The terminal T is provided in order to easily connect a wiring with a power supply that receives a voltage supply. The terminal T is also used when wiring is connected (short-circuited) to have the same potential (short-circuit) as the other adjacent electrostatic field generating sheet 1.

  The insulating paint IS electrically insulates the aluminum sheet SH from the floor when placed directly on the floor. Therefore, the insulating paint IS is applied using a material or method that is difficult to peel off so as to withstand external forces such as friction with the floor. For example, the insulating paint IS is a saturated polyester.

  Next, the container 2 to which the electrostatic field generating sheet 1 is applied will be described.

  FIG. 3 is a configuration diagram showing the configuration of the container 2. FIG. 4 is a structural diagram showing the structure of the floor rail RL of the container 2.

  The container 2 is an international standard container with a refrigerator (ISO 668: 1995) that satisfies the international standard by ISO (International Organization for Standardization). The container 2 has a rectangular parallelepiped shape. The container 2 has a wall, a ceiling, a floor rail RL, a door DR and the like covered with a heat insulating material.

  A door DR is provided on one side surface of the container 2 on the longitudinal direction side. The refrigerator FR is provided on the side surface facing the door DR in the container 2. The evaporator fan motor FN is provided in the upper part of the refrigerator FR. The refrigerator FR produces cold air Fc by an evaporator fan motor FN (evaporator circuit).

  The container 2 is provided with an aluminum floor rail RL for circulating the cold air Fc inside the container 2 (cargo compartment). As shown in FIG. 4, the floor rail RL has a T shape. The refrigerator FR blows out the produced cold air Fc from the lower part. The cold air Fc blown out from the refrigerator FR flows along the floor rail RL. The refrigerator FR takes in the cold air Fc that has returned through circulation in the container 2 from above. Thereby, the cool air Fc cools the inside of the container 2.

  The power source for operating the refrigerator FR and the power source for applying to the electrostatic field generating sheet 1 are the same power source. Therefore, when a power source is connected to the container 2 in order to operate the refrigerator FR, a voltage for generating an electrostatic field can be taken into the container 2.

  The container 2 has an electrically insulating material (not shown) attached to the inner wall. This prevents the voltage applied to the electrostatic field generating sheet 1 from being discharged to the container 2 even if the electrostatic field generating sheet 1 contacts the wall surface in the container 2 during transportation of the container 2.

  Next, a usage example of the electrostatic field generating sheet 1 will be described.

  FIG. 5 is a layout diagram illustrating a side surface in a state where the electrostatic field generating sheet 1 according to the first embodiment is disposed in the container 2. FIG. 6 is an arrangement view showing an upper surface in a state where the electrostatic field generating sheet 1 according to the first embodiment is arranged in the container 2.

  In the container 2, eight electrostatic field generating sheets 1 are laid. Since all of the eight electrostatic field generating sheets 1 have the same potential, wiring for short-circuiting their own terminal T and the terminal T of another electrostatic field generating sheet 1 is provided. Fresh products (not shown) are placed on the electrostatic field generating sheet 1. Fresh products include vegetables, fruits, meat, fish, eggs, beverages, fresh flowers, and the like.

  The AC power source 3 is a device for generating AC power. The AC power source 3 is installed outside the container 2. For example, the AC power supply 3 is a generator mounted on a ship or a truck.

  In order to create an electrostatic atmosphere inside the container 2, the AC power supply 3 is first connected to the container 2. Thereby, AC power is supplied from the AC power source 3 to the container 2. At this time, AC power is also supplied to the refrigerator FR. A voltage is applied to the terminal for connecting to the electrostatic field generating sheet 1 by this AC power. Here, one terminal from the AC power supply 3 is connected to a terminal T of at least one of the eight electrostatic field generating sheets 1. The other terminal from the AC power source 3 is connected to the frame of the container 2. Further, the frame of the container 2 is grounded.

  As a result, the AC power supply 3 applies a voltage between the electrostatic field generating sheet 1 and the frame of the container 2 (between the electrostatic field generating sheet 1 and the ground). At this time, the applied voltage is about 7000V. However, the voltage can be varied, for example, in the range of 2000 V to 7000 V so that an electrostatic field is generated according to the environment or the like.

  According to the present embodiment, by using the electrostatic field generating sheet 1, the cargo compartment for conveyance can be easily set to an electrostatic field atmosphere. By setting the cargo room to an electrostatic field atmosphere, generation of minute ozone, minute vibration of moisture (fresh products), ionization of air, etc. may occur. Thereby, the freshness of the fresh product placed in the cargo compartment can be kept long.

  Moreover, the electrostatic field generating sheet 1 can improve the effect of generating the electrostatic field and improve the air permeability by providing the holes HL.

  Furthermore, since the electrostatic field generating sheet 1 is thin, the center of gravity is lower than, for example, a pallet. For this reason, the fresh goods stacked on the electrostatic field generating sheet 1 are less likely to collapse even when shaken during conveyance.

  Further, since the electrostatic field generating sheet 1 is thin, for example, the amount of load that can be packed in the container can be increased as compared with a pallet or the like.

  Furthermore, since the electrostatic field generating sheet 1 is thin, it is easy to handle. Further, the electrostatic field generating sheet 1 can reduce the volume that occupies the space when transporting or storing.

(Second Embodiment)
FIG. 7 is a perspective view for explaining how to use the electrostatic field generating sheet 1 according to the second embodiment.

  The electrostatic field generating sheet 1 according to the present embodiment is the same as the electrostatic field generating sheet 1 according to the first embodiment except that the method of use is changed.

  The electrostatic field generating sheet 1 is laid so as to be within the upper surface of the pallet 4. The upper surface of the pallet 4 is 1100 mm × 1100 mm. The pallet 4 has a standard size that is generally used. A fresh product (not shown) is placed on the electrostatic field generating sheet 1. In this state, the fresh product is carried into the cargo compartment (container) together with the pallet.

  The method for applying a voltage to the electrostatic field generating sheet 1 is the same as in the first embodiment. Thereby, the electrostatic field generating sheet 1 generates an electrostatic field.

  According to the present embodiment, by using the electrostatic field generating sheet 1, the cargo compartment for conveyance can be easily set to an electrostatic field atmosphere. By setting the cargo room to an electrostatic field atmosphere, generation of minute ozone, minute vibration of moisture (fresh products), ionization of air, etc. may occur. Thereby, the freshness of the fresh product placed in the cargo compartment can be kept long.

  Further, by placing the electrostatic field generating sheet 1 on the pallet 4, the convenience of the pallet 4 during the transportation of fresh products can be obtained. Moreover, even when it becomes unnecessary, the electrostatic field generating sheet 1 can be easily detached from the pallet 4. Since the removed electrostatic field generating sheet 1 is thin, the storage space can be reduced. Therefore, the electrostatic field generating sheet 1 can be stored even in a cargo compartment or the like in which only a limited space can be secured.

(Third embodiment)
FIG. 8 is a configuration diagram showing a configuration of an electrostatic field generating container 2A according to the third embodiment.

  The electrostatic field generating container 2A is obtained by attaching an aluminum plate for electrodes 1A to the ceiling of an international standard container with a refrigerator (ISO 668: 1995) which is the container 2 according to the first embodiment. Therefore, the basic part of the electrostatic field generating container 2A is the same as that of the container 2. That is, the electrostatic field generating container 2A is a container that satisfies the international standard described above.

  The electrode aluminum plate 1 </ b> A is attached using an insulating support member 21 so as to cover the ceiling portion of the electrostatic field generating container 2 </ b> A. As shown in FIG. 9, the electrode aluminum plate 1A has a large number of holes HL. This hole HL is provided from the viewpoint of air permeability and electrostatic field generation efficiency, like the hole HL of the electrostatic field generating sheet 1 according to the first embodiment.

  The insulating support member 21 has a length that can maintain an insulating distance so that it does not discharge to the ceiling portion of the electrostatic field generating container 2A when a voltage is applied to the electrode aluminum plate 1A.

One terminal from the AC power source 3 is connected to the electrode aluminum plate 1A. The other terminal from the AC power supply 3 is connected to the frame of the electrostatic field generating container 2A. The frame of the electrostatic field generating container 2A is grounded. Accordingly, the voltage output from the AC power source 3 is applied between the electrode aluminum plate 1A and the electrostatic field generating container 2A (between the electrode aluminum plate 1A and the ground).

  The fresh product can be placed in any place in the electrostatic field generating container 2A as long as it is not in contact with the electrode aluminum plate 1A. Accordingly, the fresh product may be placed in contact with the side surface in the electrostatic field generating container 2A.

  According to the present embodiment, by using the electrostatic field generating container 2A, it is possible to easily make the cargo compartment for transportation into an electrostatic field atmosphere. By setting the cargo room to an electrostatic field atmosphere, generation of minute ozone, minute vibration of moisture (fresh products), ionization of air, etc. may occur. Thereby, the freshness of the fresh product placed in the cargo compartment can be kept long.

  Moreover, the electrode aluminum plate 1A provided in the electrostatic field generating container 2A can improve air permeability and improve the effect of generating the electrostatic field by providing the holes HL.

  Furthermore, since the electrostatic field generating container 2A is provided with the electrode aluminum plate 1A for generating an electrostatic field on the upper surface, it can be used in the same manner as a normal container.

  Moreover, since the electrostatic field generating container 2A has the aluminum plate for electrode 1A attached to only the upper surface, it is suitable for conveying fresh products. For example, even when a fresh product that is stacked moves and hits the inner side surface during transport of the electrostatic field generating container 2A, the electrostatic field atmosphere is not affected. For this reason, the container 2A does not need to insulate the inner side surface.

  Furthermore, since the electrostatic field generating container 2A has already been wired to apply a voltage to the electrode aluminum plate 1A, it can easily generate an electrostatic field in the container 2A (for example, just by switching it on). be able to.

  Moreover, since the electrostatic field generating container 2A satisfies the international standard of a container with a refrigerator according to ISO, it is a container suitable for transportation around the world.

  In the first embodiment, an aluminum plate is used, but any other conductive material may be used.

  In the first embodiment, four terminals T are provided, but any number may be provided. Further, the terminal T is not necessarily provided. Furthermore, the terminal T may be integrally formed with the aluminum sheet SH.

  In each embodiment, alternating current is used as a voltage for generating an electrostatic field, but direct current may be used. When alternating current is used, the current flowing through the electrostatic field generating sheet 1 is larger than when direct current is used. Therefore, it is considered that the effect of generating an electrostatic field is higher when alternating current is used.

  In each embodiment, a power source for generating an electrostatic field may be directly provided in the containers 2 and 2A. Moreover, you may provide separately the power supply supplied to the refrigerator FR, and the power supply for generating an electrostatic field.

  In 3rd Embodiment, although it was set as the aluminum plate shape as an electrode, it is not restricted to this. The electrode may be rod-shaped or strip-shaped.

  In the third embodiment, an insulating paint may be applied to the upper surface side of the electrode aluminum plate 1A (the ceiling side of the electrostatic field generating container 2A). Thereby, the distance for ensuring insulation can be shortened, and the insulation support member 21 can be shortened.

(Fourth embodiment)
FIG. 10 is a configuration diagram showing a configuration of an electrostatic field generating sheet 1B according to the fourth embodiment.

  The electrostatic field generating sheet 1B includes an electric wire LI, an insulating sheath ISB that covers the electric wire LI, an electric wire LI1 that is electrically connected to the electric wire LI and drawn from the insulating outer sheath ISB, and a terminal T provided at the tip of the electric wire LI1. And. The electrostatic field generating sheet 1B can be arbitrarily designed in size. Here, the size of the electrostatic field generating sheet 1B is assumed to be 450 mm long × 300 mm wide × 3 mm thick.

  The electric wire LI serves as an electrode to which a voltage is applied in order to generate an electrostatic field. The electric wire LI forms a circuit in a lattice shape. The electric wire LI is obtained by applying carbon to a polyester fiber. When the electric wire LI reaches a certain temperature due to excessive heat generation, the polyester fiber melts and blows. The electric wire LI serves as a fuse against heat generation. That is, the electric wires LI are selected from polyester fiber as a material so as to be melted by excessive heat generation. Polyester fiber is an electrically insulating material. For this reason, conductive carbon is applied.

  The electric wire LI1 is an electric wire drawn from the insulating exterior ISB in order to connect to the power supply unit 30. The electric wire LI1 is coated for insulation in order to prevent discharge to the outside. The electric wire LI1 is connected to the electric wire wired from the power supply unit 30 and the terminal T. The terminal T is provided for connecting a wiring with the power supply unit 30. The terminal T is also used when connecting (short-circuiting) a wiring for making the same potential as the other adjacent electrostatic field generating sheet 1B.

  The insulation exterior ISB entirely covers the circuit formed by the electric wire LI. Therefore, the electrostatic field generating sheet 1B functions as an insulated electrode plate in which the entire electrode is insulated. Since the whole is covered with the insulating exterior ISB, the electrostatic field generating sheet 1B can be directly attached to a ceiling, a wall, or the like. The insulating exterior ISB has a structure composed of multiple layers of vinyl chloride and polyethylene.

  FIG. 11 is an electric circuit diagram showing an electric circuit when the electrostatic field generating sheet 1B according to the fourth embodiment is used.

  The power supply unit 30 includes a variable resistor 31 and a step-up transformer 32.

  The variable resistor 31 is a device for adjusting the voltage output of an AC 100V (commercial power supply) voltage in the range of 50V to 100V. The variable resistor 31 is, for example, a slidac (registered trademark). The variable resistor 31 supplies the adjusted voltage to the step-up transformer 32.

  The step-up transformer 32 boosts the voltage supplied from the variable resistor 31 to a voltage in the range of 2000V to 7000V. One terminal of the voltage output from the step-up transformer 32 is grounded. A potential of 2000 V to 7000 V is applied to the other terminal on the ground. The terminal to which this potential is applied is connected to the electrostatic field generating sheet 1B.

  FIG. 12 is a configuration diagram showing a configuration in which the electrostatic field generating sheet 1B according to the fourth embodiment is mounted on the container 2B. FIG. 12 is a cross-sectional view of the container 2B as viewed from the side.

  In the container 2B according to the third embodiment shown in FIG. 8, the container 2B is provided with a power supply unit 30 by removing the insulating support member 21 and the electrode aluminum plate 1A. Other points are the same as the container 2.

  The electrostatic field generating sheet 1B is attached to the ceiling of the container 2B with an adhesive tape or the like. The electrostatic field generating sheet 1 </ b> B is wired so that a voltage is supplied from the power supply unit 30.

  In such a configuration, by applying a voltage from the power supply unit 30 to the electrostatic field generating sheet 1B, the inside of the container 2B is made an electrostatic atmosphere.

  As a specific example, an environment setting method in the container 2B when storing chrysanthemums will be described.

  Assume that the container 2B is kept at 5 ° C.

  A voltage of 2000 V is applied to the electrostatic field generating sheet 1B. At this time, it is assumed that a current of 1 mA flows in the electrostatic field generating sheet 1B.

  In such an environment, the chrysanthemum is stored in the container 2B for 11 days.

  After storing in this way, when the chrysanthemum is taken out of the container 2B and placed in an environment where it is exposed to the outside air (an environment where the temperature is higher than in the container 2B), compared to the chrysanthemum that is not stored in the container 2B of the environment described above, The degree of subsequent flowering can be suppressed.

  Here, the chrysanthemum has been described as an example, but in other varieties, the voltage applied to the electrostatic field generating sheet 1B is appropriately changed to set the environment corresponding to the varieties.

  According to the present embodiment, in addition to the operational effects of the first embodiment, the following operational effects can be obtained.

  The electrostatic field generating sheet 1B can be further reduced in weight by using the electric wire LI as an electrode than the electrostatic field generating sheet 1 according to the first embodiment. Therefore, the electrostatic field generating sheet 1B can be easily attached to the ceiling or wall of the container 2B with an adhesive tape or the like. Therefore, the electrostatic field generating sheet 1B can be easily attached to and detached from the container 2B. Further, the electrostatic field generating sheet 1B can be attached to an arbitrary place in the container 2B.

  Further, since the electrostatic field generating sheet 1B is covered with the insulating exterior ISB, high insulation can be achieved. Thereby, even if it affixes the electrostatic field generation sheet | seat 1B directly to the container 2B, the discharge between containers can be prevented. Moreover, even if a person touches the electrostatic field generating sheet 1B, it can be handled safely because there is no electric shock due to the high insulating force of the insulating exterior ISB.

  Furthermore, since the wire LI uses a material that melts due to excessive heat generation, it can serve as a thermal fuse. Moreover, since the electric wire LI forms a circuit in a lattice shape, even if a part of the electric wire LI is disconnected, a voltage is supplied to the remaining electric wires LI by another wraparound circuit. Therefore, even if the electric wire LI is disconnected due to excessive heat generation, the electrostatic field can be continuously generated.

  Moreover, since the container 2B is provided with the power supply unit 30 for adjusting the voltage, it is possible to create an electrostatic field environment corresponding to various fresh products. For example, in the case of fresh flowers, rapid flowering due to temperature rise due to outside air after being transported by the container 2B can be suppressed.

  In the fourth embodiment, the two electrostatic field generating sheets 1B are connected in parallel to the power supply unit 30, but may be connected in series. When the electrostatic field generating sheets 1B are connected in series, two or more locations (electric wires LI1 or terminals T) to be connected to apply a voltage are provided as in the electrostatic field generating sheet 1BA shown in FIG. It is good also as a structure.

  Further, in the fourth embodiment, the electric wires LI of the electrostatic field generating sheet 1B have a lattice shape, but may have a mesh shape or may have another shape. Moreover, even if the electric wire LI is provided in the shape of a bellows, it can generate an electrostatic field similarly.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 1,1B ... Electrostatic field generation sheet, 1A ... Aluminum plate for electrodes, 2, 2B ... Container, 2A ... Electrostatic field generation container, 3 ... AC power supply, 4 ... Pallet, 30 ... Power supply part, 31 ... Variable resistor, 32 ... Boost transformer, HL ... Hole, SH ... Aluminum sheet, IS ... Insulating paint, ISB ... Insulating exterior.

Claims (2)

An electrostatic field generating container for generating an electrostatic field inside and transporting cargo,
Provided with an electrode provided on the ceiling, to which a voltage is applied to generate an electrostatic field,
Electrically insulating the electrode and the frame of the electrostatic field generating container;
There is no electrical insulation treatment on the inner side of the frame ,
The electrode is plate-shaped and provided with holes for effectively generating an electrostatic field,
The electrostatic field generating container , wherein the voltage generates the electrostatic field between the electrode and the frame . 2. The electrostatic field generating container according to claim 1, which satisfies the international standard (ISO668) of a container with a refrigerator by an international standardization mechanism.

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