JPWO2019097591A1 - Freshness maintaining device, flyer, space potential generator, water activation device, aquaculture device, drying device, ripening device, growing device, and air conditioner - Google Patents

Abstract

In the voltage application device (3) provided in the freshness maintaining device, one terminal (36a) of the secondary coil (36) of the transformer (31) is connected to one terminal (35a) of the primary coil (35) of the transformer (31). ), The output control unit (33) connected to the other terminal (36b) of the secondary coil (36), and the voltage value of the AC voltage (VL3) input from the AC power supply. A voltage adjusting unit (41) that adjusts the voltage value of the alternating voltage (VL1) by switching the voltage to a plurality of voltage values and applying the voltage to the primary coil (35).

Description

  The present invention relates to a freshness maintaining device, a fryer, a space potential generator, a water activation device, a culture device, a drying device, a ripening device, a growing device, and an air conditioner.

  In a freshness holding device that holds the freshness of a fresh product, an alternating electric field is formed in the freshness holding space for keeping the freshness of the fresh product, and the fresh product is disposed in the freshness holding space where the alternating electric field is formed There is a freshness maintaining device for maintaining the freshness of the product. Such a freshness holding device has a space potential generator that forms an alternating electric field in the freshness holding space. The space potential generator includes an electrode portion provided in the freshness holding space, and a voltage application device that applies an AC voltage to the electrode portion.

  In International Publication No. 2015/122070 (Patent Document 1), a freshness maintaining device includes a transformer formed by magnetically coupling a primary coil and a secondary coil, and a secondary for adjusting a voltage in the secondary coil. A feedback control circuit for returning one terminal of the coil to one terminal of the primary coil, an output control means provided at the other terminal of the secondary coil to apply low-frequency vibration to the output of the secondary coil, and the output Electrostatic discharge means made of a conductive material provided at the other terminal of the secondary coil via the control means, and an electric field of a predetermined voltage is generated in the space around the electrostatic discharge means by static electricity discharged from the electrostatic discharge means. A technology comprising a space potential generating device configured to form the above is disclosed.

  Further, in the above-mentioned Patent Document 1, in the freshness holding device, an object such as food in the freshness holding space is formed by forming an electric field in the freshness holding space by discharging static electricity from the electrostatic discharge means of the space potential generator. A technique is disclosed in which a voltage is applied to maintain a freshness.

International Publication No. 2015/122070

  The above-described freshness holding device includes a demarcating portion made of, for example, a refrigerator for demarcating the freshness holding space, an electrode portion provided in the freshness holding space, and a voltage applying device. The freshness of the fresh food disposed in the freshness-keeping space is maintained by the effect of an alternating electric field formed in the freshness-holding space by the space potential generator configured by the electrode unit and the voltage application device. Therefore, the introduction cost and the operating cost of the freshness holding device can be reduced, and the freshness of the fresh product can be efficiently held in the freshness holding space due to the effect of the AC electric field formed by the space potential generating device.

  However, in the above-described freshness maintaining device, it is difficult to easily adjust the voltage value of the AC voltage applied to the electrode portion. Therefore, it is difficult to easily set the strength of the alternating electric field formed by the space potential generator to the optimum strength according to the type, quantity, or packaging status of the fresh product, or the temperature or humidity in the freshness holding space, It is difficult to further improve the effect of the alternating electric field on the freshness maintaining process, or it is difficult to control the influence range and the increase / decrease of the target space.

  In addition, when the above-described freshness maintaining device has a space potential generating device, it is difficult to further improve the effect of the alternating electric field formed by the space potential generating device, or control of the influence range, increase / decrease of the target space The problem that the control is difficult is not limited to the freshness maintaining device. For example, even when a processing device for processing a fryer, a water activation device, an aquaculture device, a drying device, an aging device, a growth device, or other various objects to be processed has a space potential generator, the alternating electric field exerted on the processing by the processing device It is difficult to further improve the effect, or it is difficult to control the range of influence and control the increase / decrease of the target space.

  The present invention has been made to solve the above-described problems of the prior art, and in the freshness maintaining device, the fryer or other various processing devices having a space potential generating device, the introduction cost and operation of the processing device. It aims at providing the processing apparatus which can further improve the effect of the alternating electric field which acts on the process by a processing apparatus, or can control object space, reducing cost.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  The freshness holding device as one aspect of the present invention is a fresh product arranged in a freshness holding space in which an AC electric field is formed in a freshness holding space for holding freshness of the fresh product. It is a freshness holding device that holds the freshness of. The freshness maintaining device includes a demarcating section that demarcates a freshness retaining space, an electrode section provided in the freshness retaining space defined by the demarcating section, and a voltage applying device that applies a first AC voltage to the electrode section. ing. The voltage applying device includes a transformer including a primary coil to which a second AC voltage is applied by an AC power source, a secondary coil magnetically coupled to the primary coil, and a second coil for adjusting a voltage in the secondary coil. A feedback control circuit for returning one terminal of the secondary coil to the one terminal of the primary coil, and an output control unit connected to the other terminal of the secondary coil in order to apply low-frequency vibration to the output of the secondary coil. Have. The voltage application device switches the voltage value of the third AC voltage input from the AC power source to a plurality of different voltage values, and uses the third AC voltage whose voltage value is switched as the second AC voltage as a primary voltage. It has a voltage adjustment part which adjusts the voltage value of a 1st alternating voltage by applying to a coil. And an electrode part is connected to the other terminal of a secondary coil via an output control part.

  Moreover, as another aspect, the voltage adjusting unit includes a first element that is one terminal of the primary coil or the other terminal of the primary coil, a resistance element provided between the AC power source, and a first terminal. May be connected to an AC power supply via a resistance element, or a switch element that switches whether the first terminal is connected to an AC power supply without passing through a resistance element.

  Further, as another aspect, the freshness holding device forms an alternating electric field in the freshness holding space by discharging static electricity from the electrode portion into the freshness holding space, and applies the formed alternating electric field to the fresh product. However, the freshness of the fresh product may be maintained.

  As another aspect, the voltage application device may apply a first AC voltage having a frequency of 20 to 100 Hz to the electrode unit.

  Moreover, as another aspect, the freshness maintaining device may not include a ground electrode.

  Moreover, 0.002-0.2A may be sufficient as the electric current which flows into a secondary coil as another one aspect | mode.

  As another aspect, the electrode unit is the first electrode, and the voltage application device may not be electrically connected to any electrode other than the first electrode. Further, the electrode portion may include a plate-like portion including a main surface, and the plate-like portion may include a plurality of openings formed in the main surface, but the electrode portion is limited to the case where the electrode portion includes the plate-like portion. Not. For example, a discharge plate as an electrode part can be formed even with a sheet laminated with aluminum foil. In addition, a discharge sheet as an electrode portion formed into a sheet shape so as to have a waterproof effect with only a high-voltage line, that is, an output sheet from which AC power is output can be formed, and the same effect is obtained. Furthermore, when the electrode is attached to or brought into contact with various substances, the object becomes a discharge and serves as an output unit.

  As another aspect, a photocatalyst or an oxygen catalyst may be applied to the surface of the electrode portion.

  Moreover, as another aspect, the demarcating portion is a refrigerator, the freshness keeping space is formed in the refrigerator, or is incorporated in a wall or a shelf, and the electrode portion is provided in the refrigerator. May be. In addition to the refrigerator, the demarcation part may be a freezer or a storage used in a room temperature environment.

  A fryer according to an aspect of the present invention includes an oil tank in which oil is stored, an electrode section provided in the oil tank, and a voltage application that forms an AC electric field in the oil tank by applying a first AC voltage to the electrode section. And a device. The voltage applying device includes a transformer including a primary coil to which a second AC voltage is applied by an AC power source, a secondary coil magnetically coupled to the primary coil, and a second coil for adjusting a voltage in the secondary coil. A feedback control circuit for returning one terminal of the secondary coil to the one terminal of the primary coil, and an output control unit connected to the other terminal of the secondary coil in order to apply low-frequency vibration to the output of the secondary coil. Have. The voltage application device switches the voltage value of the third AC voltage input from the AC power source to a plurality of different voltage values, and uses the third AC voltage whose voltage value is switched as the second AC voltage as a primary voltage. It has a voltage adjustment part which adjusts the voltage value of a 1st alternating voltage by applying to a coil. And an electrode part is connected to the other terminal of a secondary coil via an output control part.

  Moreover, as another aspect, the voltage adjusting unit includes a first element that is one terminal of the primary coil or the other terminal of the primary coil, a resistance element provided between the AC power source, and a first terminal. May be connected to an AC power supply via a resistance element, or a switch element that switches whether the first terminal is connected to an AC power supply without passing through a resistance element.

  Moreover, as another aspect, the flyer forms an alternating electric field in the oil tank by discharging static electricity from the electrode portion into the oil tank, and applies the formed alternating electric field to the oil stored in the oil tank. May be.

  As another aspect, the voltage application device may apply a first AC voltage having a frequency of 20 to 100 Hz to the electrode unit.

  As another aspect, the flyer may not include a ground electrode.

  Moreover, 0.002-0.2A may be sufficient as the electric current which flows into a secondary coil as another one aspect | mode.

  As another aspect, the electrode unit is the first electrode, and the voltage application device may not be electrically connected to any electrode other than the first electrode.

  As another aspect, a photocatalyst or an oxygen catalyst may be applied to the surface of the electrode portion.

  A space potential generator as one embodiment of the present invention is a space potential generator that forms an alternating electric field. The space potential generator includes an electrode unit to which a first AC voltage is applied, and a voltage application device that forms an AC electric field around the electrode unit by applying the first AC voltage to the electrode unit. Yes. The voltage applying device includes a transformer including a primary coil to which a second AC voltage is applied by an AC power source, a secondary coil magnetically coupled to the primary coil, and a second coil for adjusting a voltage in the secondary coil. A feedback control circuit for returning one terminal of the secondary coil to the one terminal of the primary coil, and an output control unit connected to the other terminal of the secondary coil in order to apply low-frequency vibration to the output of the secondary coil. Have. The voltage application device switches the voltage value of the third AC voltage input from the AC power source to a plurality of different voltage values, and uses the third AC voltage whose voltage value is switched as the second AC voltage as a primary voltage. It has a voltage adjustment part which adjusts the voltage value of a 1st alternating voltage by applying to a coil. And an electrode part is connected to the other terminal of a secondary coil via an output control part.

  Moreover, as another aspect, the voltage adjusting unit includes a first element that is one terminal of the primary coil or the other terminal of the primary coil, a resistance element provided between the AC power supply, and a first terminal. May be connected to an AC power supply via a resistance element, or a switch element that switches whether the first terminal is connected to an AC power supply without going through a resistance element.

  As another aspect, an alternating electric field may be formed around the electrode part by discharging static electricity from the electrode part around the electrode part.

  As another aspect, the voltage application device may apply a first AC voltage having a frequency of 20 to 100 Hz to the electrode unit.

  Further, as another aspect, the space potential generation device may not include a ground electrode.

  Moreover, 0.002-0.2A may be sufficient as the electric current which flows into a secondary coil as another one aspect | mode.

  As another aspect, the electrode unit is the first electrode, and the voltage application device may not be electrically connected to any electrode other than the first electrode.

  As another aspect, a photocatalyst or an oxygen catalyst may be applied to the surface of the electrode portion.

  The water activation device as one embodiment of the present invention includes the space potential generation device and a water tank in which water is stored. The electrode part is provided in the water tank. And the said water activation apparatus forms the alternating current electric field in a water tank, and activates the water currently stored in the water tank in which the alternating current electric field is formed.

  Further, as another aspect, the water activation device forms an alternating electric field in the water tank by discharging static electricity from the electrode portion into the water tank, and applies water while applying the formed alternating electric field to water. It may be activated.

  The aquaculture device as one embodiment of the present invention includes the space potential generation device and a water tank in which water is stored. The electrode part is provided in the water tank. And the said aquaculture apparatus forms an alternating current electric field in a water tank, and cultures aquatic organisms in the water tank in which the alternating current electric field is formed.

  Further, as another aspect, the aquaculture device forms an alternating electric field in the water tank by discharging static electricity from the electrode portion into the water tank, and applies the formed alternating electric field to the aquatic organism. It may be farmed.

  A drying device as one embodiment of the present invention includes the space potential generation device and a drying cabinet for drying an object to be dried. The electrode part is provided in the drying chamber. And the said drying apparatus forms an alternating current electric field in a drying cabinet, and dries to-be-dried object in the drying cabinet in which the alternating electric field is formed.

  Moreover, as another aspect, the drying apparatus discharges static electricity from the electrode portion into the drying chamber, thereby forming an AC electric field in the drying chamber and applying the formed AC electric field to the object to be dried. The material to be dried may be dried.

  The aging apparatus as one embodiment of the present invention includes the space potential generator. The electrode part is provided in an aging space for aging an object to be aged. Then, the aging apparatus forms an alternating electric field in the aging space and ripens the material to be matured in the aging space in which the alternating electric field is formed.

  Further, as another aspect, the aging device forms an alternating electric field in the aging space by discharging static electricity from the electrode portion into the aging space, and applies the formed alternating electric field to the aged material. An aged product may be aged.

  The growing device as one embodiment of the present invention includes the space potential generator. The electrode part is provided around the object to be grown. And the said training apparatus grows the to-be-cultivated object which forms an alternating current electric field in the circumference | surroundings of a to-be-cultivated object, and the alternating electric field is formed in the circumference | surroundings.

  Moreover, as another aspect, the growing apparatus forms an alternating electric field around the growing object by discharging static electricity from the electrode portion to the surrounding of the growing object, and the formed alternating electric field is used as the growing object. The object to be cultivated may be grown while being applied to.

  The air conditioner as one embodiment of the present invention includes the space potential generator. The electrode unit is provided in an air-conditioned space for air conditioning, forms an alternating electric field in the air-conditioned space, and adjusts the temperature of air in the air-conditioned space in which the alternating electric field is formed.

  As another aspect, the air conditioner discharges static electricity from the electrode portion into the air-conditioned space, thereby forming an AC electric field in the air-conditioned space and applying the formed AC electric field to the air in the air-conditioned space. However, the temperature of the air in the conditioned space may be adjusted.

  By applying one embodiment of the present invention, in a freshness maintaining device, a fryer, or other various processing devices having a space potential generating device, the alternating current exerted on the processing by the processing device while reducing the introduction cost and the operating cost of the processing device. The effect of the electric field can be further improved, or the target space can be controlled.

It is sectional drawing which shows typically an example of the freshness holding | maintenance apparatus of Embodiment 1. FIG. FIG. 3 is a plan view schematically showing an example of an electrode unit provided in the freshness holding device according to Embodiment 1. FIG. 3 is a circuit diagram illustrating an example of a space potential generation device according to the first embodiment. It is a figure which shows the beef thawed after being frozen in the freezer compartment of the refrigerator provided in the freshness holding apparatus of Comparative Example 3 and Example 3. It is a figure which shows the Ise shrimp thawed after being frozen in the freezer compartment of the refrigerator provided in the freshness preservation apparatus of Comparative Example 3 and Example 3. It is a figure which shows the abalone which was thawed after being frozen in the freezer compartment of the refrigerator with which the freshness holding | maintenance apparatus of the comparative example 3 and Example 3 was equipped. It is a figure which shows the salmon meat thawed | freezed after being frozen in the freezer provided in the freshness holding | maintenance apparatus of the comparative example 4 and Example 4. FIG. It is a figure which shows the fish thawed after being frozen in the storage provided in the freshness holding apparatus of Comparative Example 5 and Example 5. It is a figure which shows the chestnut stored in the storage provided in the freshness holding | maintenance apparatus of the comparative example 6 and Example 6. FIG. It is a front view including the partial cross section which shows typically the freshness holding | maintenance apparatus of the 1st modification of Embodiment 1. FIG. It is a side view including the partial cross section which shows typically the freshness holding | maintenance apparatus of the 2nd modification of Embodiment 1. FIG. FIG. 9 is a plan view schematically showing a freshness holding device according to a third modification of the first embodiment. It is a side view which shows typically the freshness holding | maintenance apparatus of the 4th modification of Embodiment 1. FIG. It is sectional drawing which shows an example of the fryer of Embodiment 2 typically. It is sectional drawing which shows typically an example of the water activation apparatus of Embodiment 3. FIG. It is sectional drawing which shows typically an example of the culture apparatus of Embodiment 4. FIG. It is sectional drawing which shows typically an example of the storage apparatus of Embodiment 5. FIG. It is a perspective view which shows typically an example of the storage apparatus of Embodiment 5. FIG. It is a figure which shows the plant stored with the storage apparatus of the comparative example 8 and Example 8. FIG. It is a figure which shows the plant stored with the storage apparatus of the comparative example 8 and Example 8. FIG. It is sectional drawing which shows typically an example of the drying apparatus of Embodiment 6. FIG. It is a side view including the partial cross section which shows typically the drying apparatus of the modification of Embodiment 6. FIG. FIG. 10 is a cross-sectional view schematically showing an example of an aging apparatus according to a seventh embodiment. It is a graph which shows the measurement result of content of glutamic acid in the beef ripened by the ripening apparatus of Comparative Example 12 and Example 12. FIG. 10 is a cross-sectional view schematically showing an example of a growing apparatus according to an eighth embodiment. It is a perspective view which shows typically an example of the air conditioning apparatus of Embodiment 9. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  It should be noted that the disclosure is merely an example, and those skilled in the art can easily conceive of appropriate modifications while maintaining the gist of the invention are naturally included in the scope of the present invention. In addition, the drawings may be schematically represented with respect to the width, thickness, shape, and the like of each part as compared with the embodiments for the sake of clarity of explanation, but are merely examples, and the interpretation of the present invention is not limited thereto. It is not limited.

  In addition, in the present specification and each drawing, elements similar to those described above with reference to the previous drawings are denoted by the same reference numerals, and detailed description may be omitted as appropriate.

  Furthermore, in the drawings used in the embodiments, hatching (shading) added to distinguish structures may be omitted depending on the drawings.

  In addition, when showing a range as A-B in the following embodiment, it shall show A or more and B or less unless otherwise specified.

(Embodiment 1)
First, a freshness maintaining apparatus according to Embodiment 1 which is an embodiment of the present invention and a space potential generator included in the freshness maintaining apparatus will be described.

<Freshness maintenance device>
First, the freshness maintaining apparatus of the first embodiment will be described. The freshness holding device of the first embodiment forms an AC electric field in a freshness holding space for holding the freshness of a fresh product, and the fresh product placed in the freshness holding space in which the AC electric field is formed. It is a freshness holding device that holds freshness. Further, the freshness maintaining device of the first embodiment has a space potential generating device as an electric field forming device that forms an alternating electric field.

  FIG. 1 is a cross-sectional view schematically showing an example of the freshness maintaining device of the first embodiment. FIG. 2 is a plan view schematically showing an example of an electrode unit provided in the freshness holding device of the first embodiment.

  In the following, an example will be described in which the freshness holding device according to the first embodiment includes a refrigerator made up of a normal household refrigerator, for example, as a demarcating portion that demarcates the freshness holding space. However, as will be described with reference to FIGS. 10 to 12 in first to third modifications of the first embodiment to be described later, the freshness holding device of the first embodiment defines a freshness holding space. As a part, you may provide the demarcation part other than a household refrigerator. Alternatively, as described with reference to FIG. 13 in a fourth modification of the first embodiment to be described later, the freshness holding device of the first embodiment may not include a demarcating portion that demarcates the freshness holding space. .

  As shown in FIG. 1, the freshness maintaining device according to the first embodiment includes a refrigerator 1, an electrode unit 2, and a voltage applying device 3. The refrigerator 1 is a demarcating portion that defines a freshness retaining space 5 for retaining the freshness of the fresh produce 4, and the freshness retaining space 5 is formed in the refrigerator 1. As the refrigerator 1, for example, a normal household refrigerator can be used as described above. The electrode part 2 is provided in the freshness holding space 5 defined by the defining part. In other words, the electrode unit 2 is provided in the refrigerator 1. The voltage application device 3 is built in, for example, the back surface of the refrigerator 1, and forms an alternating electric field around the electrode portion 2 by applying an alternating voltage VL <b> 1 (see FIG. 3 described later) to the electrode portion 2. The electrode section 2 and the voltage application device 3 form a space potential generating device 6 as an electric field forming device that forms an alternating electric field. The electrode unit 2 is an electrostatic discharge unit that discharges static electricity into the freshness holding space 5. That is, the electrode unit 2 is an electrostatic discharge unit included in the space potential generator 6.

  The freshness holding device according to the first embodiment is formed by forming an alternating electric field in the freshness holding space 5, that is, around the electrode portion 2 by discharging static electricity from the electrode portion 2 into the freshness holding space 5. While applying an AC electric field to the fresh product 4, the freshness of the fresh product 4 is maintained. At this time, due to the effect of the alternating electric field, water molecules in the fresh product 4 can be irradiated with an electromagnetic wave having a specific wavelength, so that the cells in the fresh product 4 are activated and the freshness of the fresh product 4 is maintained for a long time. can do.

  The perishables in this specification include all agricultural products including livestock products such as vegetables, fruits and flowers, and other agricultural products such as meat, and all marine products including seafood.

  As shown in FIG. 1, the space in the refrigerator 1, that is, the freshness keeping space 5 is partitioned into three spaces by partition plates 11 and 12, a chilled chamber 13 in the uppermost stage, and a refrigerated room 14 in the middle. And the vegetable compartment 15 is formed in the lowest step. Therefore, in the example shown in FIG. 1, the freshness holding space 5 is formed by the chilled chamber 13, the refrigerator compartment 14, and the vegetable compartment 15.

  Inside the partition plate 11 between the chilled chamber 13 and the refrigerated chamber 14, an electrode unit 2 is provided as an electrostatic discharge unit included in the space potential generator 6. In such a case, the partition plate 11 functions as an insulating member that covers the surface of the electrode portion 2. Thus, by providing the electrode part 2 inside the partition plate 11, the electrode part 2 is not visible from the outside, so that the security of appearance is enhanced, and when a high current flows through the electrode part 2 by mistake. However, since a user does not touch the electrode part 2 directly, the electric shock by a direct contact can be prevented.

  Moreover, by providing the electrode part 2 inside the partition plate 11, the strength of the alternating electric field in the chilled chamber 13 and the refrigerator compartment 14 near the electrode part 2 is increased, and the alternating electric field in the vegetable room 15 away from the electrode part 2 is increased. Since the strength is weakened, an AC electric field strength suitable for the stored fresh product 4 can be obtained.

  In the example shown in FIG. 1, the electrode part 2 is provided inside the partition plate 11, but the position where the electrode part 2 is provided is not limited to the example shown in FIG. 1. That is, the electrode unit 2 can be provided at an arbitrary position. For example, the electrode unit 2 may be provided inside the back plate, top plate, or other partition plate of the refrigerator 1.

  In the example shown in FIG. 1, the electrode portion 2 is made of a plate-like conductive material. The electrode part 2 may be flat or curved.

  As shown in FIG. 2, the electrode part 2 preferably has a plate-like part 22 including a main surface 21. Thereby, the electrode part 2 can be easily installed in the inside of the partition plate 11, for example.

  As shown in FIG. 2, more preferably, the plate-like portion 22 includes a plurality of recesses or holes, that is, a plurality of openings 23, formed in the main surface 21. The shape of the opening 23 when viewed from the direction perpendicular to the main surface 21 of the plate-like portion 22 can be a circular shape or a hexagonal shape. Since the plate-like portion 22 includes the opening portion 23 having such a circular shape or a hexagonal shape, an AC electric field is concentrated on the periphery of the opening portion 23, for example. It becomes easy to discharge static electricity. The electrode unit 2 is not limited to the case where the plate unit 22 is provided. For example, a discharge plate as the electrode portion 2 can be formed even with a sheet laminated with aluminum foil. In addition, an output sheet as the electrode portion 2 formed into a sheet shape so as to have a waterproof effect with only a high-voltage line, that is, an output sheet from which AC power is output can be formed, and the same effect is obtained. Not limited to aluminum foil, copper, stainless steel, iron, carbon, etc., it can be applied with various materials by connecting the output part.

  By using a sheet-like output sheet as the electrode part 2, the waterproof performance of the electrode part 2 can be easily improved, the electrode part 2 can be easily reduced in weight, or the electrode part 2 can be easily It can install, or the thickness of the electrode part 2 can be reduced easily.

  The output sheet can be formed using aluminum foil as described above, but can also be formed by processing carbon. As the output sheet formed by processing carbon, for example, a sheet having a shape of 25 cm in length × 25 cm × 1 mm in thickness can be used. The output sheet formed by processing such carbon has, for example, a weight of 80 g, and the electrode part 2 can be further reduced in weight as compared with an output sheet using other materials. The electrode part 2 can be installed more easily.

  In addition, for the output sheet formed by processing carbon, the resistance of the electrode part 2 is reduced and the conductivity of the electrode part 2 is improved, so that the range where the effect of the alternating electric field is reached is made using other materials. In the case of the output sheet formed in this way, it can be expanded to about twice as much as the range in which the effect of the AC electric field reaches. Specifically, for an output sheet formed by processing carbon, for example, the resistance of the output sheet can be reduced to about 5 to 40Ω, and in the case of an output sheet formed using aluminum foil, the output sheet The effect equivalent to the effect of the alternating electric field exerted at a position 3 m away from the output sheet can be extended to a position 5 m away from the output sheet.

  Furthermore, it is preferable that an output sheet formed by processing carbon is kneaded with a ceramic powder which is easy to emit far infrared rays, which is so-called far infrared ceramic. As the ceramic, for example, tourmaline can be used, and the particle size of the powder can be set to 200 μm, for example. Such ceramics called far-infrared ceramics such as tourmaline can easily generate negative ions, so that the effect of expanding the range covered by the AC electric field can be further increased. Alternatively, a photocatalyst such as titanium oxide or an oxygen catalyst may be applied to the output sheet formed by processing carbon, thereby further increasing the freshness maintaining effect.

  Or the electrode part 2 can also be provided in the inside of the chilled room 13, the refrigerator compartment 14, and the vegetable compartment 15 instead of the inside of a partition plate. In such a case, and when the plate-like portion 22 includes an opening 23 having a shape such as a circle or a hexagon, the air in the refrigerator 1 is circulated by a fan provided in the refrigerator 1. In this case, the electrode section 2 does not hinder air circulation, and the freshness maintaining conditions including the strength of the electric field in each of the chilled room 13, the refrigerator room 14, and the vegetable room 15 can be easily made uniform. it can.

  Alternatively, the electrode part 2 may have an insulating member on the main surface 21 of the plate-like part 22 or on the surface opposite to the main surface 21. Further, the surface of the plate-like portion 22 may be covered with an insulating member. Alternatively, the freshness holding device may include an insulating member that covers the surface of the electrode unit 2. As a result, the security of appearance is increased compared to the state in which the plate-like portion 22 is exposed, and there is no fear of electric shock due to direct contact even when a high value current flows through the secondary coil due to some mistake, Furthermore, the occurrence of corona discharge can be prevented.

  A recess or a hole, that is, an opening, may be formed on the surface of the insulating member similarly to the opening 23, but the surface of the insulating member may be flat and may not have an opening. In such a case, the electrode part 2 has the waterproof effect which prevents the plate-shaped part 22 from contacting water. Further, a photocatalyst such as titanium oxide or an oxygen catalyst may be applied to the surface of the flat insulating member. By having an insulating member having such a flat surface and coated with a photocatalyst or the like, it is generated from the fresh product 4 in the chilled room 13, the refrigerator room 14, the vegetable room 15, etc., that is, the freshness holding space 5. The removed ethylene gas can be removed. In addition, since the photocatalyst or the oxygen catalyst should just be apply | coated to the surface of the electrode part 2, it may be applied to the surface of the insulating member and may be applied to the surface of the electrode itself.

<Space potential generator>
Next, the space potential generator of the first embodiment will be described. The space potential generator of the first embodiment is an electric field forming device that forms an alternating electric field. Further, the space potential generator of the first embodiment is a space potential generator included in the freshness maintaining device of the first embodiment.

  FIG. 3 is a circuit diagram showing an example of the space potential generating device of the first embodiment. In the example illustrated in FIG. 3, the voltage application device 3 includes a transformer 31, a feedback control circuit 32, an output control unit 33, and an output terminal 34. Transformer 31 includes a primary coil 35 and a secondary coil 36 that are magnetically coupled to each other.

  An AC voltage VL2 is applied to the primary coil 35 from an AC power source. In the example shown in FIG. 3, a commercial power source (not shown) connected to an AC input outlet 37 is used as the AC power source.

  A breaker 38 may be provided between the AC input outlet 37 and the primary coil 35, and a switch element 39 may be provided between the breaker 38 and the primary coil 35. Further, as the AC power source, for example, an AC power source or other various AC power sources obtained by converting a secondary battery or other various DC power sources provided inside or outside the voltage application device 3 by, for example, an inverter circuit, may be used. it can.

  One terminal 36 a of the secondary coil 36 is connected to one terminal 35 a of the primary coil 35 via the feedback control circuit 32. Further, the feedback control circuit 32 adjusts the voltage in the secondary coil 36. In other words, the feedback control circuit 32 returns one terminal 36 a of the secondary coil 36 to one terminal 35 a of the primary coil 35 in order to adjust the voltage in the secondary coil 36.

  The output control unit 33 is provided between the other terminal 36 b of the secondary coil 36 and the output terminal 34. Further, the output control unit 33 applies low frequency vibration to the output voltage of the secondary coil 36. In other words, the output control unit 33 is connected to the other terminal 36 b of the secondary coil 36 in order to apply low frequency vibration to the output voltage of the secondary coil 36.

  The electrode unit 2 is connected to an output terminal 34, that is, a terminal opposite to the other terminal 36 b side of the secondary coil 36 of the output control unit 33 through a feeder line 24 (see FIG. 1) made of a conductive wire. . Therefore, the electrode unit 2 is connected to the other terminal 36 b of the secondary coil 36 via the feeder line 24 and the output control unit 33.

  According to the voltage application device 3 described above, since the current generated on the secondary coil 36 side by the feedback control circuit 32 is fed back to the primary coil 35, a high voltage can be obtained on the secondary coil 36 side with a small number of turns. . Further, the feedback control circuit 32 and the output control unit 33 are configured to cause a delay in the circuit, and as a result, a low frequency vibration of 20 to 100 Hz, for example, is applied to the output of the secondary coil 36.

  In addition, the feedback control circuit 32 connects the one terminal 36a of the secondary coil 36 to the one terminal 35a of the primary coil 35 to adjust the voltage at the secondary coil 36. As a result, the voltage application device 3 is reduced in size. Can be

  As described above, the freshness holding device of the first embodiment forms an AC electric field in the freshness holding space 5 for holding the freshness of the fresh product 4, and the freshness holding space 5 in which the AC electric field is formed. The freshness of the fresh product 4 arranged in the table is maintained. Specifically, by discharging static electricity from the electrode unit 2 into the freshness-keeping space 5, an alternating electric field is formed in the freshness-holding space 5, and the fresh product 4 while applying the formed alternating electric field to the fresh product 4. Keep the freshness of.

  At this time, due to the effect of the alternating electric field, water molecules in the fresh product 4 can be irradiated with an electromagnetic wave having a specific wavelength, so that the cells in the fresh product 4 can be activated. Further, when the fresh product 4 is decayed, the fresh product 4 is oxidized to compensate for the decreased electrons, thereby preventing the fresh product 4 from being oxidized and suppressing the activity of bacteria. That is, according to the freshness maintaining apparatus of the first embodiment having the space potential generator 6, the freshness of the fresh product 4 can be maintained for a long time due to the effect of the AC electric field.

  Moreover, oxidation of a cell etc. can be suppressed by charging a cluster effect, a minus electron charge, and a plus electron charge with respect to the cell etc. in the fresh product 4. Further, it is possible to suppress sterilization and propagation of viruses or the like in the fresh product 4.

  When an alternating electric field is applied, chicken is not frozen up to -5 ° C and beef, pork and fish are not frozen up to -7 ° C, so that fresh products can be stored without freezing at low temperatures. Thereby, there is no possibility that the tissue is destroyed when thawing the frozen one, and the tissue can be stored for a long period of time without being frozen.

  In addition, the freshness maintaining apparatus according to the first embodiment includes a refrigerator 1 including, for example, a normal household refrigerator, an electrode unit 2, and a voltage applying device 3. Moreover, as above-mentioned, the freshness of the fresh goods 4 can be hold | maintained for a long period of time by the effect of an alternating current electric field. Therefore, according to the freshness holding device of the first embodiment, the introduction cost and the operating cost of the freshness holding device can be reduced, and the effect of the AC electric field formed by the space potential generator 6 can reduce the freshness of the fresh product 4. The freshness can be maintained efficiently.

  Further, in the freshness maintaining apparatus of the first embodiment, a high voltage is generated at the output of the secondary coil 36 by the action of the feedback control circuit 32 and the output control unit 33, and a low frequency is generated at the output of the secondary coil 36. Vibration is applied. Therefore, even if the output is only one line of the terminal 36b, static electricity is favorably discharged from the electrode portion 2 toward a low potential portion (for example, a ground portion), and the periphery of the electrode portion 2 (specifically, the electrode portion 2). A high-voltage AC electric field is formed at 360 degrees with a radius of about 1.5 m. Thereby, it is not necessary to use two electrodes in order to form an alternating electric field around the fresh product 4. Therefore, the configuration of the freshness maintaining device can be simplified.

  That is, in the freshness maintaining device of the first embodiment, when the electrode unit 2 is referred to as the first electrode, the voltage applying device 3 may not be electrically connected to any electrode other than the first electrode. It is not necessary to apply a voltage to any electrode other than one electrode. Thereby, the structure of a freshness holding | maintenance apparatus can be simplified, improving the freshness holding effect at the time of hold | maintaining the freshness of the fresh product 4. FIG.

  When an AC electric field is formed in a refrigerator divided into a plurality of rooms such as a refrigerator room, a vegetable room, and a freezer room, in a conventional space potential generator, an electrode shelf is installed for each room or a pair of electrodes It was necessary to provide.

  On the other hand, in the freshness maintaining apparatus of the first embodiment, since the electrode unit 2 operates as an antenna, the amplitude of the applied AC electric field, that is, the voltage is also applied to the portion of the freshness maintaining space 5 that is separated from the electrode unit 2. It will not be so small. Therefore, even if only one electrode is provided as the electrode part 2, the cells and the like in the fresh product 4 are oxidized by charging the cluster effect, minus electron charge and plus electron charge. The effect of suppressing and the effect of suppressing the sterilization and propagation of viruses or the like in the fresh product 4 can be obtained.

  However, the intensity of the alternating electric field formed in the freshness holding space 5 increases as it approaches the electrode part 2 and decreases as it is separated from the electrode part 2. Therefore, depending on the type of fresh product 4 that maintains freshness, there are some that require a low AC electric field strength and others that require a high AC electric field strength, so that the chilled room 13, the refrigerator room 14, and the vegetable room 15 The best effect can be obtained by arranging the electrode unit 2 at an appropriate position in accordance with the arrangement of.

  Preferably, an AC voltage VL2 is applied to the primary coil 35 from an AC power source. Specifically, the voltage application device 3 applies an AC voltage input from an AC power supply to the primary coil 35 as an AC voltage VL2.

  Alternatively, a battery can be used as the power source of the voltage application device 3. Even in such a case, since the power consumption of the voltage application device 3 is low, for example, it can be operated for 3 days in a state where 16 single batteries are connected in parallel. Therefore, the space potential generator 6 can also be applied to, for example, a space potential generator provided in an automobile, that is, a movable space potential generator.

  Preferably, the output control unit 33 applies a voltage having a frequency of 20 to 100 Hz to the output of the secondary coil 36. In other words, the voltage application device 3 applies an AC voltage having a frequency of 20 to 100 Hz to the electrode unit 2. When the voltage applied to the output of the secondary coil 36 by the output control unit 33 is 20 to 100 Hz, the voltage applied to the output of the secondary coil 36 by the output control unit 33 is less than 20 Hz or more than 100 Hz. It is possible to efficiently activate water molecules contained in cells etc. in the product 4, to efficiently prevent oxidation of cells etc. in the fresh product 4, or viruses in the fresh product 4, etc. Can be effectively suppressed.

  Preferably, the space potential generator 6 does not include a ground electrode. In other words, the freshness maintaining device does not include a ground electrode. Thereby, it becomes easy to discharge static electricity from the electrode portion 2 provided (connected) to the other terminal 36 b of the secondary coil 36.

  Preferably, the current flowing through the secondary coil 36 is 0.002 to 0.2A. When the current flowing through the secondary coil 36 is 0.002 A or more, the water molecules contained in the cells and the like in the fresh product 4 are activated more efficiently than when the current flowing through the secondary coil 36 is less than 0.002 A. Or oxidation of cells or the like in the fresh product 4 can be efficiently prevented, or activity of viruses or the like in the fresh product 4 can be efficiently suppressed. In addition, when the current flowing through the secondary coil 36 is 0.2 A or less, the current flowing through the secondary coil 36 becomes weaker than when the current flowing through the secondary coil 36 exceeds 0.2 A. There is no worry.

  According to the space potential generator 6 of the first embodiment, a freezer, a refrigerator, a thaw box, a showcase, a food storage room, an ISO (International Organization for Standardization) container, a transport truck, a room temperature warehouse, a refrigerator in a fishing boat, or a fishing boat Just by installing one electrode unit 2 in a freezer or any place such as a medical refrigerator or a medical freezer, high voltage is applied to the entire space (in the chamber, the room, the vehicle) where the electrode unit 2 is installed. An alternating electric field can be formed. Therefore, it is possible to add a freshness maintaining function using an AC electric field to a desired place easily and inexpensively.

  In addition, when the freezer, refrigerator, defroster, showcase, food storage room, ISO container, room temperature warehouse, etc. are manufactured, the electrode part 2 is embedded in the interior of the wall, ceiling, partition plate, etc., thereby providing a freshness maintaining function. A freezer, a refrigerator, a defroster, a showcase, a food storage room, an ISO container, a room temperature warehouse, or the like provided from the beginning can be realized. In such a case, since the electrode part 2 is embedded in the wall, ceiling, partition plate, or the like, the appearance is excellent, and the appearance is more secure than when the electrode part 2 is exposed. In addition, since the embedded wall, ceiling, or partition plate serves as an insulating material, it is not necessary to provide a dedicated insulating material, and there is no risk of electric shock even if a high current flows by mistake.

  In the case of a large warehouse, multiple shelves with a length of 8m or more are installed in the warehouse, and these shelves are arranged to move left and right to make it easier to take out the pallets placed on the shelves with a forklift at the time of shipment. Is done. In such a case, since the electrode unit 2 is separate from the shelf plate, the electrode unit 2 can be easily installed even if the shelf is movable.

<Voltage adjustment unit>
The voltage applying device 3 provided in the space potential generating device 6 of the first embodiment further includes a voltage adjusting unit 41. The voltage adjustment unit 41 switches the voltage value of the AC voltage VL3 input from the AC power source to a plurality of different voltage values, and applies the AC voltage VL3 whose voltage value has been switched to the primary coil 35 as the AC voltage VL2. As a result, the voltage value of the AC voltage VL1 output to the output terminal 34 is adjusted.

  Thus, the voltage value of the AC voltage VL1 can be easily adjusted by switching, for example, to two kinds of voltage values, for example, three kinds of voltage values of strong, medium, and weak. Therefore, the strength of the AC electric field generated by the space potential generator 6 in the freshness-keeping space 5 is set to an optimum strength corresponding to the type, quantity, or packaging status of the fresh product 4 or the temperature or humidity in the freshness-holding space 5. It can be easily adjusted and set. Therefore, it is possible to further improve the effect of the AC electric field on the freshness holding process by the freshness holding device while reducing the introduction cost and the operating cost of the freshness holding device, or to control the influence range and increase / decrease the target space. You can control.

  Preferably, the voltage adjustment unit 41 includes a resistance element 42 and a switch element 43. The resistance element 42 is provided between a terminal 35 c that is one terminal 35 a or the other terminal 35 b of the primary coil 35 and an AC power source, that is, an AC input outlet 37. In the example shown in FIG. 3, the other terminal 35b of the primary coil 35 is the terminal 35c, but one terminal 35a of the primary coil 35 may be the terminal 35c.

  Whether the switch element 43 connects the terminal 35c to the AC power source, that is, the AC input outlet 37 via the resistor element 42, or connects the terminal 35c directly to the AC power source, that is, the AC input outlet 37, without passing through the resistor element 42. Switch. As a result, the voltage value of the AC voltage VL2 applied to the primary coil 35 is switched between the voltage value of the AC voltage VL3 input from the AC power supply and a voltage value smaller than the voltage value of the AC voltage VL3. In addition, the voltage value of the AC voltage VL1 output to the output terminal 34 can be easily switched between two different voltage values.

  Further, as the resistance element 42, for example, a variable resistor having a resistance value that can be changed within a range having a center value of about 50Ω can be used. Thereby, the voltage value at the time of switching the voltage value of AC voltage VL2 applied to the primary coil 35 to a voltage value smaller than the voltage value of AC voltage VL3 can be changed, and it outputs to the output terminal 34. It is possible to further change the smaller voltage value when the voltage value of the AC voltage VL1 to be switched is easily switched between two different large and small voltage values.

  As shown in FIG. 3, the voltage adjustment unit 41 may include a surge absorber 44 connected in parallel with the resistance element 42. In such a case, the switch element 43 connects the terminal 35c to the AC power source, that is, the AC input outlet 37 via the resistance element 42 and the surge absorber 44 connected in parallel to each other, or connects the terminal 35c to each other. Whether to connect directly to the AC power source, that is, the AC input outlet 37, without switching through the resistance element 42 and the surge absorber 44 connected in parallel is switched. Thereby, for example, when a large voltage is suddenly applied to the resistance element 42 due to a lightning strike or the like, the resistance value of the surge absorber 44 rapidly decreases and current flows in a concentrated manner toward the surge absorber 44. Current flowing through the resistor element 42 can be reduced, and the resistance element 42 can be prevented from being burned out.

<Effect of AC electric field on freshness retention processing when demarcating parts other than refrigerator are provided>
Here, in the case where the freshness holding device according to the first embodiment includes a demarcation portion other than the refrigerator as a demarcation portion that demarcates the freshness retention space, the effect of the alternating electric field on the freshness retention processing by the freshness retention device explain.

  First, a freshness holding device that does not have a space potential generating device is referred to as Comparative Example 1, and a freshness holding device according to Embodiment 1 that is a freshness holding device that has a space potential generating device 6 is referred to as Example 1.

  The storage as a freshness holding space defined by the defining portion provided in each of the freshness holding devices of Comparative Example 1 and Example 1 had a shape of 5 m wide × 6 m wide × 2.5 m high. . Further, the four electrode portions 2 were installed side by side at a height of 1.5 m from each floor of the side wall in the longitudinal direction of the storage as the freshness holding space 5. The electrode unit 2 provided in the freshness holding device of Example 1 was formed of an electrode plate having a front shape of 40 cm wide × 25 cm long. And the voltage application apparatus 3 makes the electrode part 2 so that the voltage in the storage becomes 30V due to the static electricity discharged from the electrode part 2 and the voltage applied to the food disposed in the storage becomes 40V. An AC voltage was applied to The daytime temperature was 30 ° C, the nighttime temperature was 10 ° C, and the total amount of food was 3 tons. In the storage, they were stored in a plastic box and loaded to a height of 2 m.

  Below, the test which compares in the case where the tomato was stored as a foodstuff in the storage provided in each freshness holding | maintenance apparatus of the comparative example 1 and Example 1 was done. The temperature in the storage was 10 to 30 ° C., and the storage period was from the first day of the test to the eighth day.

  As a result, the tomatoes stored in the storage until the 8th day had a weight loss of 30.34% in Comparative Example 1, and lost water, and were rotten or bugs were generated. However, in Example 1, the weight loss was 11.70% and the water was kept, so that it was fresh and could be eaten. That is, in Example 1, compared with the comparative example 1, the weight reduction part was able to be reduced by 74%.

  From the test results described above, according to the freshness holding device of the first embodiment, the freshness in which the electrode unit 2 is installed by having the space potential generator 6 and installing the electrode unit 2 in the freshness holding space 5. An AC electric field having an appropriate strength is formed in the holding space 5, and it has been clarified that the storage period of the fresh product 4 at room temperature can be extended in the freshness holding space 5 in which the AC electric field is formed.

<Effect of AC electric field on freshness preservation processing when equipped with refrigerator>
Next, the effect of the alternating electric field exerted on the freshness holding process by the freshness holding device when the freshness holding device according to the first embodiment includes a refrigerator as a demarcating portion that defines the freshness holding space will be described.

  First, a freshness holding device that does not have a space potential generating device is referred to as Comparative Example 2, and a freshness holding device according to Embodiment 1 that is a freshness holding device that has a space potential generating device 6 is referred to as Example 2.

  The freshness holding space formed in the refrigerator provided in each freshness holding device of Comparative Example 2 and Example 2 had a shape of 80 cm wide × 150 cm high × 50 cm deep. Moreover, the electrode part 2 provided in the freshness holding device of Example 2 is formed of an electrode plate having a shape of 30 cm long × 15 cm wide × 1 mm thick, and the upper and lower surfaces of the electrode plate are plastics that are insulating materials. It was covered with an insulating member made of (acrylonitrile, butadiene (Butadiene), styrene (Styrene) copolymer synthetic resin (ABS resin) plate). The insulating member covering the upper surface of the electrode plate has a shape of 40 cm long × 35 cm wide × 4 mm thickness, and the insulating member covering the lower surface of the electrode plate has a shape of 40 cm long × 35 cm wide × 4 mm thick. It was.

  Below, the test which compares in the case where the chicken was refrigerated as a foodstuff in the refrigerator with which each freshness holding apparatus of the comparative example 2 and Example 2 was equipped was done. The voltage applied to the electrode part 2 was set to 800V, and the voltage directly applied to chicken was set to 30V. The temperature in the refrigerator was 5 ° C., and the storage period was from the first day of the test to the fourth day.

  As a result, the chicken that had been refrigerated in the refrigerator until the 4th day had lost its deliciousness and began to change its color because the drip flowed out and the umami component had flowed out in Comparative Example 2. However, in Example 2, the drip almost did not flow out, it was in a fresh state, and the color of the meat was almost the same as the test start date.

  Moreover, the test which compares in the case where spinach was refrigerated as a foodstuff in the refrigerator with which each freshness holding apparatus of the comparative example 2 and Example 2 was equipped was done. The voltage applied to the electrode part 2 was set to 800V, and the voltage directly applied to the spinach was set to 30V. The temperature in the refrigerator was 4 ° C., and the storage period was from the first day of the test to the 19th day.

  As a result, the spinach stored in the refrigerator until the 19th day was deflated in Comparative Example 2 and remarkably changed in appearance, but in Example 2, it was not deflated and hardly changed in appearance.

  From the above test results, according to the freshness holding device of the first embodiment, the refrigerator having the space potential generator 6 and installing the electrode unit 2 in the freshness holding space 5 provides the refrigerator with the electrode unit 2 installed. It was revealed that an AC electric field having an appropriate strength was formed in the refrigerator 1, and that the storage period by refrigeration of the fresh food 4 could be extended in the refrigerator 1 in which the AC electric field was formed.

<Preservation state of fresh products frozen in the freshness holding device>
Next, the preservation | save state of the fresh product frozen in the freshness holding | maintenance apparatus of this Embodiment 1 is demonstrated.

  First, a freshness holding device that does not have a space potential generating device is referred to as Comparative Example 3, and a freshness holding device according to Embodiment 1 that is a freshness holding device that has a space potential generating device 6 is referred to as Example 3.

  The freshness-keeping space formed in the freezer compartment of the refrigerator provided in each freshness-holding device of Comparative Example 3 and Example 3 had a shape of horizontal 60 cm × height 80 cm × depth 45 cm. Moreover, the electrode part 2 provided in the freshness holding device of Example 3 is formed by an electrode plate having a planar shape of 10 cm in length and 5 cm in width, and the upper and lower surfaces of the electrode plate are made of plastic (PE plate) that is an insulating material. ). The insulating member covering the upper surface of the electrode plate has a shape of 12 cm long × 17 cm wide × 7 mm thick, and the insulating member covering the lower surface of the electrode plate has a shape of 12 cm long × 17 cm wide × 6 mm thick. It was.

  Below, the test which compares the case where beef was frozen and stored as a foodstuff in the freezer compartment of the refrigerator with which each freshness holding apparatus of the comparative example 3 and Example 3 was equipped was done. The temperature in the freezer was −24 ° C., and the freezing period was from the first day of the test to the seventh day. In addition, the beef that had been frozen on the seventh day was taken out and thawed in a temperature zone of 4 ° C. for 24 hours. In addition, the voltage applied to the electrode part 2 was set to 1000V, and the voltage applied directly to beef was set to 20V.

  FIG. 4 is a diagram showing beef that has been frozen and then thawed in the freezer compartment of the refrigerator provided in the freshness maintaining apparatus of Comparative Example 3 and Example 3. The left side of FIG. 4 shows a photograph of the beef thawed after being frozen in the freezer of the refrigerator of Comparative Example 3, and the right side of FIG. 4 was thawed after being frozen in the freezer of the refrigerator of Example 3. Shows a photo of beef.

  As shown on the left side of FIG. 4, in Comparative Example 3, 3.28% drip flowed out from the thawed beef and umami components flowed out. On the other hand, as shown on the right side of FIG. 4, in Example 3, only 0.69% drip spilled out from the thawed beef, and it was in a fresh state.

  Moreover, the test which compares the case where Ise shrimp was frozen and stored as a foodstuff in the freezer compartment of the refrigerator provided in each freshness holding apparatus of the comparative example 3 and Example 3 was done. The temperature in the freezer was −24 ° C., and the freezing period was from the first day of the test to the seventh day. Moreover, the Ise shrimp frozen on the 7th day was taken out and thawed at room temperature. In addition, the voltage applied to the electrode part 2 was set to 1800V, and the voltage directly applied to Ise shrimp was set to 30V.

  FIG. 5 is a diagram showing the shrimp lobster that has been frozen and then thawed in the freezer compartment of the refrigerator provided in the freshness maintaining apparatus of Comparative Example 3 and Example 3. The left side of FIG. 5 shows a photograph of the shrimp Ise that was frozen in the freezer compartment of Comparative Example 3 and thawed after being frozen in the freezer compartment of the refrigerator of Example 3. Shows a picture of the lobster.

  As shown on the left side of FIG. 5, in Comparative Example 3, the thawed lobster was loosened, and the shape of the midgut gland, a so-called shrimp, was loosened. On the other hand, as shown on the right side of FIG. 5, in Example 3, the thawed Ise shrimp was tightened and the shape of the midgut gland was maintained.

  Moreover, the test which compares the case where Ezo abalone was frozen and stored as a foodstuff in the freezer of the refrigerator with which each freshness holding apparatus of the comparative example 3 and Example 3 was equipped was done. The temperature in the freezer was −24 ° C., and the freezing period was from the first day of the test to the seventh day. In addition, Ezo abalone that had been frozen on the seventh day was taken out and thawed. In addition, the voltage applied to the electrode part 2 was set to 2000V, and the voltage applied directly to Ezo Abalone was set to 25V.

  FIG. 6 is a view showing the abalone that has been thawed after being frozen in the freezer compartment of the refrigerator provided in the freshness maintaining device of Comparative Example 3 and Example 3. The upper side of FIG. 6 shows a photograph of the abalone that has been frozen in the freezer compartment of the refrigerator of Comparative Example 3 and then thawed, and the lower side of FIG. 6 has been thawed after being frozen in the freezer compartment of the refrigerator of Example 3. Shows a photo of the Ezo Abalone.

  As shown in the upper side of FIG. 6, in Comparative Example 3, the thawed Ezo abalone had a large amount of drip spillage, was loose, and the liver was crushed. On the other hand, as shown in the lower side of FIG. 6, in Example 3, the thawed abalone had a small amount of drip outflow, reduced looseness, and the liver shape remained firm. In addition, when cooked the abalone after thawing, in Comparative Example 3, the body was shrunken, the graininess, that is, the surface granular shape was in a state of drooping badly, and the texture was soft. In 3, there was a shrinkage, but the crunch remained and it was firm.

  According to the freshness maintaining apparatus of the first embodiment, water molecules can be frozen without destroying cells due to the cluster effect. Moreover, since the freshness after freezing can also be maintained, it is not necessary to move the frozen foodstuff from a quick freezer to a freezer compared with the case where a quick freezer is used, for example. Therefore, it is not necessary to introduce expensive equipment such as a quick refrigerator, and by providing the space potential generator 6 in the existing refrigeration equipment, the electricity bill can be reduced and the amount of carbon dioxide emission can be reduced. it can.

  Next, a freshness holding device that does not have a space potential generator and has a freezer is referred to as Comparative Example 4, and has a space potential generator 6 and has a freezer. Was taken as Example 4. And the test which freezes a foodstuff by setting temperature to -18 degreeC using all the freshness holding | maintenance apparatuses of each of the comparative example 4 and Example 4 was done. As a result, in Comparative Example 4, it was revealed that ice crystals adhering to the food material after freezing were large, and in Example 4, ice crystals adhering to the food material after freezing were small. This is presumably because the freshness maintaining apparatus of Example 4 has a fine cluster of water molecules when frozen. Therefore, it has been clarified that the best freezing can be performed without breaking the food fiber by providing the space potential generator 6 in the existing freezer.

  In addition, in the freshness maintaining apparatus of Comparative Example 4, after 1 month of freezing at −18 ° C., the frozen food also deteriorates. Therefore, when the food is stored in the freezer for more than 1 month, the stored food is: It was frozen and burned and was in an uneatable state. On the other hand, with the freshness maintaining apparatus of Example 4, it was possible to maintain freshness even for one year. Retaining freshness after freezing preserved moisture and led to high-quality frozen storage.

  FIG. 7 is a view showing the salmon meat that has been frozen and then thawed in the freezer provided in the freshness holding devices of Comparative Example 4 and Example 4. The left side of FIG. 7 shows a photograph of salmon meat that has been frozen at −18 ° C. for 3 months in the freezer of Comparative Example 4 and then thawed at room temperature, and the right side of FIG. 7 shows −18 in the freezer of Example 4 A photograph of salmon meat that has been frozen at 3 ° C. for 3 months and then thawed at room temperature is shown.

  As shown on the left side of FIG. 7, in Comparative Example 4, the thawed salmon meat changed color and was not red, and was in an uneatable state. On the other hand, as shown on the right side of FIG. 7, in Example 4, the thawed salmon meat had a fresh color with almost no change from the red color.

  For example, with regard to ISO containers or transport refrigeration trucks, they have been transported by ISO containers at -20 ° C over 2 weeks from overseas, but by setting the space potential generator 6 in an existing freezer, the setting is -5 ° C. It is possible to transport with freshness in a chilled environment. Thereby, an electricity bill can be reduced and the discharge | emission amount of a carbon dioxide can be reduced.

<Installation on fishing boats>
Next, an example in which the freshness maintaining apparatus of the first embodiment is applied to a storage provided in a fishing boat will be described.

  Conventionally, when a fish landed in a storage of a fishing boat is stored, a weight reduction of 30% has occurred in 7 days from the start of storage. In the summer, a weight loss of 50% occurred in 7 days from the start of storage. The weight loss is closely related to the decrease in fish freshness, and it has been a challenge to reduce the weight loss.

  On the other hand, the freshness-keeping device according to the first embodiment is applied as a freshness-keeping device according to Example 5 to a storage provided on a fishing boat, and ice is contained in a polystyrene foam container at a temperature of -1 ° C. The applied voltage applied to the electrode part 2 was set to 30 to 50 V, and the test start date was set as the first day and stored until the seventh day. On the other hand, the conventional storage which does not have a space potential generator was used as the freshness holding device of Comparative Example 5, and a test for comparing the freshness of the stored fish was performed between Example 5 and Comparative Example 5.

  The freshness holding space formed in the storage provided in each of the freshness holding devices of Comparative Example 5 and Example 5 had a shape of 4 m wide × 3 m high × 5 m deep. Moreover, the electrode part 2 provided in the freshness holding device of Example 5 is formed of an electrode plate having a planar shape of 15 cm long × 25 cm wide, and the upper and lower surfaces of the electrode plate are plastic (PE plates) that are insulating materials. ). The insulating member covering the upper surface of the electrode plate has a shape of 25 cm long × 35 cm wide × 6 mm thickness, and the insulating member covering the lower surface of the electrode plate has a shape of 25 cm long × 35 cm wide × 6 mm thick. It was. And the voltage in a storage becomes 20V by the static electricity discharge | released from the electrode part 2, and the voltage applied to the foodstuff arrange | positioned in the state which packed the foamed polystyrene in the storage becomes 20V. In addition, an AC voltage was applied to the electrode unit 2 by the voltage application device 3.

  FIG. 8 is a diagram showing fish that has been frozen and then thawed in a storage provided in the freshness holding devices of Comparative Example 5 and Example 5. The left side of FIG. 8 shows a picture of the fish stored in the storage of Comparative Example 5, and the right side of FIG. 8 shows a picture of the fish stored in the storage of Example 5.

  When the left side of FIG. 8 is compared with the right side of FIG. 8, the color of the fish eye is white in Comparative Example 5, and the color of the fish eye is black in Example 5, which is stored between Comparative Example 5 and Example 5. The color of the fish eyes was completely different. Therefore, it became clear that the freshness of the fish stored in the storage can be improved by applying the freshness maintaining apparatus of the first embodiment to the storage provided in the fishing boat.

<Chestnut freshness retention effect>
Next, the chestnut freshness retaining effect when the freshness retaining device of the first embodiment is used will be described.

  First, a freshness holding device that does not have a space potential generating device is referred to as Comparative Example 6, and a freshness holding device according to Embodiment 1 that is a freshness holding device that includes the space potential generating device 6 is referred to as Example 6.

  The freshness holding space formed in the storage provided in each of the freshness holding devices of Comparative Example 6 and Example 6 had a shape of width 50 cm × height 50 cm × depth 45 cm. Moreover, the electrode part 2 provided in the freshness holding device of Example 6 is formed of an electrode plate having a planar shape of 15 cm in length × 25 cm in width, and the upper and lower surfaces of the electrode plate are made of plastic (PE plate) that is an insulating material. ). The insulating member covering the upper surface of the electrode plate has a shape of 25 cm long × 35 cm wide × 6 mm thickness, and the insulating member covering the lower surface of the electrode plate has a shape of 25 cm long × 35 cm wide × 6 mm thick. It was. Then, due to static electricity discharged from the electrode unit 2, the voltage in the storage becomes 100V, and 1 kg chestnut as a food is stored in the plastic tray in the storage, and the applied voltage becomes 120V. As described above, an AC voltage was applied to the electrode unit 2 by the voltage application device 3.

  Below, in the case where the chestnut is stored as a foodstuff in a storage room capable of room temperature storage, refrigeration storage, and frozen storage provided in each freshness holding device of Comparative Example 6 and Example 6, A test was conducted to compare changes in appearance and sugar content. For Comparative Example 6, the temperature in the storage was normal temperature or 5 ° C., and the storage period was 1 to 2 months. For Example 6, the temperature in the storage was normal temperature, 0 ° C. or −2 ° C., and the storage period was from 1 month to 2 months. In both Comparative Example 6 and Example 6, a test under the same conditions was performed on three specimens.

  FIG. 9 is a diagram showing chestnuts stored in the storage provided in the freshness holding devices of Comparative Example 6 and Example 6. The left side of FIG. 9 shows a picture of chestnuts stored for 1.5 months at room temperature in the storage of Comparative Example 6, and the right side of FIG. 9 is stored for 2 months at −2 ° C. in the storage of Example 6. Shows a picture of a chestnut made.

  As a result, with respect to the sample stored at room temperature in Comparative Example 6, mold was observed on the surface of all three samples after one month, and the average value of sugar content in the three samples was 2.5. After 1.5 months, all three samples had a lot of mold, and the sugar content could not be measured. One of the three samples after 1.5 months is shown on the left side of FIG.

  In Comparative Example 6, those stored at 5 ° C. had no noticeable change in appearance after 3 months, and the average sugar content in the 3 samples was 6.93. After 5 months, all three specimens were moldy and the sugar content could not be measured.

  On the other hand, for Example 6 stored at room temperature, it was observed that mold was generated on the surface of all three samples after one month, and the average sugar content in the three samples was 4.46. Yes, 1.5 months later, all three specimens had a lot of mold, and the sugar content could not be measured.

  In Example 6, those stored at 0 ° C. had no noticeable change in appearance after 3 months, and the average value of sugar content in the 3 samples was 6.26. Later, there was no noticeable change in the appearance of all three samples, and the average value of sugar content in the three samples was 11.26.

  In Example 6, those stored at −2 ° C. had no noticeable change in appearance after 3 months, and the average sugar content in the 3 samples was 6.53. Even after a month, there was no noticeable change in the appearance of all three samples, and the average value of sugar content in the three samples was 21.43. One of the 3 samples after 2 months is shown on the right side of FIG.

  As can be seen from the difference in the occurrence of mold as described above, and as can be seen by comparing the right side of FIG. 9 with the left side of FIG. 9, when the chestnut is stored using the freshness holding device of the first embodiment, It was revealed that the freshness retention effect of retaining the freshness of chestnut can be remarkably improved. Further, as can be seen from the difference in the numerical value of the sugar content described above, it has been clarified that the chestnut sugar content can be remarkably increased when the chestnut is stored using the freshness maintaining apparatus of the first embodiment. This is considered to be due to the fact that the chestnut could be preserved for a long time while maintaining the freshness of the chestnut.

<Effect of voltage regulator>
When the refrigerator in which the freshness keeping space is formed is further partitioned into a plurality of spaces by the partition plate, a discharge plate as the electrode unit 2 is added, but the voltage may be insufficient. For example, when the freshness holding space 5 is formed in a large warehouse, the wiring connecting the voltage application device 3 and the electrode unit 2 will be extended, but when the wiring length becomes 10 m, 20 m, or 30 m, The voltage may be insufficient.

  On the other hand, according to the voltage adjustment unit 41 in the freshness maintaining apparatus of the first embodiment, the voltage is adjusted, and the adjusted voltage is applied to the discharge plate as the electrode unit 2 to form an AC electric field, thereby stabilizing the voltage. It is possible to form the freshness keeping space 5 that brings about a freshness keeping effect. That is, when the discharge plate as the electrode unit 2 is added, it has been a conventional problem that the voltage decreases. However, according to the voltage adjustment unit 41 in the freshness maintaining device of the first embodiment, the electrode unit 2 has Even when the freshness holding space 5 is widened by adjusting the applied voltage, a sufficient freshness holding effect can be obtained in the whole freshness holding space 5 by increasing the voltage applied to the electrode part 2. it can. On the other hand, even when the freshness holding space 5 becomes narrow, leakage can be prevented, and a voltage corresponding to the volume of the freshness holding space 5 is applied to the discharge plate as the electrode portion 2 to form an AC electric field. Can do.

<First Modification of First Embodiment>
FIG. 10 is a front view including a partial cross-section schematically showing a freshness holding device according to a first modification of the first embodiment. As shown in FIG. 10, the freshness holding device of the first modified example includes a prefabricated refrigerator 51 as a demarcating portion that defines a freshness holding space 5 instead of the refrigerator 1 (see FIG. 1) as a household refrigerator. ing.

  In addition, the freshness holding device of the first modified example includes the electrode unit 2 and the voltage applying device 3 as in the freshness holding device of the first embodiment, and the electrode unit 2 and the voltage applying device 3 A space potential generator 6 is formed. About the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of the 1st modification was equipped, it is made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of Embodiment 1 was equipped. The details thereof will be omitted.

  In the first modified example, the electrode unit 2 is provided so as to hang down from the ceiling 51 a of the prefabricated refrigerator 51. Thereby, the freshness of fresh products 4 such as food stored in the prefabricated refrigerator 51 can be maintained for a long time. And the introduction cost and the operating cost of the freshness maintaining device can be reduced, and the freshness of the fresh product 4 can be maintained in the freshness retaining space 5 for a long period of time by the effect of the AC electric field formed by the space potential generator 6. Can do. In addition, although illustration is abbreviate | omitted in FIG. 10, the electrode part 2 is covered with the insulating member.

  Suitably, the electrode part 2 can be provided in the approximate center of the freshness-keeping space 5 formed in the prefabricated refrigerator 51. As a result, a uniform AC electric field can be formed in the prefabricated refrigerator 51, that is, in the freshness holding space 5.

  Also in the first modified example, the voltage application device 3 includes the voltage adjustment unit 41 (see FIG. 3), as in the first embodiment. Thereby, also in the first modified example, the voltage value of the AC voltage VL1 (see FIG. 3) is changed to, for example, two kinds of voltage values, or three kinds of voltage values such as strong, medium, and weak, as in the first embodiment. Therefore, the optimum conditions are adjusted according to the type, quantity, or packaging status of fresh products 4 such as food stored in the prefabricated refrigerator 51, or the temperature or humidity in the freshness holding space 5. Can be set. Therefore, it is possible to further improve the effect of the alternating electric field on the freshness maintaining process by the freshness maintaining device while reducing the introduction cost and the operating cost of the freshness maintaining device, or to control the target space.

<Second Modification of First Embodiment>
FIG. 11 is a side view including a partial cross-section schematically showing a freshness holding device according to a second modification of the first embodiment. As shown in FIG. 11, the freshness holding device of the second modified example is mounted on a refrigerator car 52 instead of the refrigerator 1 (see FIG. 1) as a household refrigerator, and as a demarcating portion that demarcates the freshness holding space 5. The in-vehicle refrigerator 53 is provided. The refrigerator car 52 has a cooler 52a and a cold air outlet 52b.

  In addition, the freshness holding device of the second modified example includes the electrode unit 2 and the voltage applying device 3 as in the freshness holding device of the first embodiment, and the electrode unit 2 and the voltage applying device 3 A space potential generator 6 is formed. About the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of this 2nd modification was equipped, it is made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of Embodiment 1 was equipped. The details thereof will be omitted.

  In the second modification, the refrigerated vehicle 52 cools the interior of the in-vehicle refrigerator 53 by, for example, sending cool air from the cooler 52a to the freshness holding space 5 formed in the in-vehicle refrigerator 53 through the cool air port 52b.

  In the second modification, the electrode part 2 as the electrostatic discharge part of the space potential generator 6 is provided on the ceiling 53 a of the in-vehicle refrigerator 53. Thereby, the preservation | save period of the fresh goods 4, such as a foodstuff preserve | saved at the vehicle-mounted refrigerator 53, can be extended. And the introduction cost and the operating cost of the freshness maintaining device can be reduced, and the freshness of the fresh product 4 can be maintained in the freshness retaining space 5 for a long period of time by the effect of the AC electric field formed by the space potential generator 6. Can do. In addition, although illustration is abbreviate | omitted in FIG. 11, the electrode part 2 is covered with the insulating member. The voltage application device 3 is connected to a battery (not shown) of the refrigerator car 52.

  Suitably, the electrode part 2 can be provided in the approximate center of the freshness maintenance space 5 formed in the in-vehicle refrigerator 53. Thereby, a uniform AC electric field can be formed in the in-vehicle refrigerator 53, that is, in the freshness holding space 5.

  Also in the second modification, the voltage application device 3 includes the voltage adjustment unit 41 (see FIG. 3), as in the first embodiment. Thereby, also in the second modified example, the voltage value of the AC voltage VL1 (see FIG. 3) is changed to, for example, two kinds of voltage values, or three kinds of voltage values, for example, strong, medium, and weak, similarly to the first embodiment. Therefore, the optimum condition is adjusted according to the type, quantity or packaging status of the fresh food 4 such as food stored in the in-vehicle refrigerator 53, or the temperature or humidity in the freshness holding space 5, Can be set. Therefore, it is possible to further improve the effect of the alternating electric field on the freshness maintaining process by the freshness maintaining device while reducing the introduction cost and the operating cost of the freshness maintaining device, or to control the target space.

<Third Modification of Embodiment 1>
FIG. 12 is a plan view schematically showing a freshness holding device according to a third modification of the first embodiment. As shown in FIG. 12, the freshness holding device of the third modified example is provided in a store 54 instead of the refrigerator 1 (see FIG. 1) as a household refrigerator, and serves as a demarcating portion that delimits the freshness holding space 5. A plurality of open-type food display shelves 55 are provided. The plurality of food display shelves 55 can be food display shelves 55a, 55b, 55c, and 55d.

  In addition, the freshness holding device of the third modified example includes the electrode unit 2 and the voltage applying device 3 as in the freshness holding device of the first embodiment, and the electrode unit 2 and the voltage applying device 3 A space potential generator 6 is formed. About the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of this 3rd modification was equipped, it is made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of Embodiment 1 was equipped. The details thereof will be omitted.

  In the third modified example, the electrode part 2 as an electrostatic discharge part of the space potential generator 6 is provided on the wall part of the store 54 and in a part close to the food display shelves 55a, 55b, 55c and 55d. . In addition, although illustration is abbreviate | omitted in FIG. 12, the electrode part 2 is covered with the insulating member.

  In the third modification, the space potential generator 6 operates, for example, at night when the store 54 is closed, and forms an alternating electric field around the food display shelves 55a, 55b, 55c, and 55d. Thereby, the preservation | save period of fresh goods, such as a food displayed in each freshness holding space 5 of the food display shelves 55a, 55b, 55c, and 55d, can be extended. The introduction cost and operating cost of the freshness maintaining device can be reduced, and the freshness of the fresh product 4 can be maintained for a long time due to the effect of the alternating electric field formed by the space potential generating device 6.

  Also in the third modification example, the voltage application device 3 includes the voltage adjustment unit 41 (see FIG. 3) as in the first embodiment. Thereby, also in the third modification example, the voltage value of the AC voltage VL1 (see FIG. 3) is changed to, for example, two kinds of voltage values, or three kinds of voltage values, for example, strong, medium, and weak, similarly to the first embodiment. Therefore, the type, quantity, or packaging status of fresh products such as food displayed in the freshness holding space 5 of each of the food display shelves 55a, 55b, 55c and 55d, or the freshness holding space 5 The optimum conditions can be adjusted and set according to the temperature or humidity. Therefore, it is possible to further improve the effect of the alternating electric field on the freshness maintaining process by the freshness maintaining device while reducing the introduction cost and the operating cost of the freshness maintaining device, or to control the target space.

<Fourth Modification of Embodiment 1>
FIG. 13 is a side view schematically showing a freshness holding device according to a fourth modification of the first embodiment. As shown in FIG. 13, the freshness retaining device of the fourth modified example does not include a demarcating portion that demarcates the freshness retaining space 5 (see FIG. 1).

  Further, the freshness holding device of the fourth modified example includes the electrode unit 2 and the voltage applying device 3 as in the freshness holding device of the first embodiment, and the electrode unit 2 and the voltage applying device 3 A space potential generator 6 is formed. About the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of the 4th modification was equipped, it is made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of Embodiment 1 was equipped. The details thereof will be omitted.

  On the other hand, the freshness maintaining device of the fourth modified example includes a support member 56 that supports the electrode unit 2 as an electrostatic discharge unit of the space potential generator 6.

  As shown on the left side of FIG. 13, the support member 56 may be a support member 56 a that installs the electrode unit 2 on the floor 57. By using such a support member 56a, the selection range of the installation location of the electrode unit 2 is expanded, and the electrode unit 2 can be installed at a more optimal location.

  Further, as illustrated on the right side of FIG. 13, the support member 56 may be a support member 56 b that is installed by suspending the electrode unit 2 from the ceiling 58. In such a case, the support member 56b is fixed to the ceiling 58 by the fixing portion 56c. By using such a support member 56b, the selection range of the installation location of the electrode unit 2 is expanded, and the electrode unit 2 can be installed at a more optimal location.

(Embodiment 2)
<Flyer>
Next, the flyer of Embodiment 2 will be described. The flyer of the second embodiment has a space potential generator as an electric field forming device that forms an alternating electric field.

  FIG. 14 is a cross-sectional view schematically showing an example of the fryer of the second embodiment. As shown in FIG. 14, the fryer of the second embodiment includes an oil tank 61, an electrode unit 2, and a voltage application device 3. Oil 61 a is stored in the oil tank 61. The electrode unit 2 is provided in the oil tank 61 and is preferably immersed in the oil 61 a stored in the oil tank 61. The voltage application device 3 forms an AC electric field in the oil tank 61 by applying an AC voltage VL <b> 1 (see FIG. 3) to the electrode unit 2. A space potential generator 6 that forms an alternating electric field in the oil tank 61 is formed by the electrode unit 2 and the voltage application device 3.

  Note that the fryer according to the second embodiment may not include the oil tank 61. In such a case, a fryer provided with only the electrode part 2 and the voltage application device 3 is used in combination with an oil tank.

  The electrode unit 2 and the voltage application device 3 provided in the fryer of the second embodiment can be the same as the electrode unit 2 and the voltage application device 3 provided in the freshness maintaining device of the first embodiment. Details thereof are omitted.

  In the flyer of the second embodiment, the oil tank 61 and the space potential generator 6 are provided in combination, and an electrostatic field is discharged from the electrode portion 2 into the oil tank 61, thereby forming an AC electric field in the oil tank 61. The food material 61 b is fried while applying the AC electric field applied to the oil 61 a stored in the oil tank 61. Thereby, the introduction cost and operating cost of the fryer can be reduced, and the oil when the food 61b is fried in the oil 61a stored in the oil tank 61 by the effect of the AC electric field formed by the space potential generator 6 The freshness of 61a can be efficiently maintained.

  Further, the flyer of the second embodiment has a space potential generator 6 including the electrode unit 2 and the voltage application device 3, similar to the freshness maintaining device of the first embodiment. Similar to the freshness maintaining apparatus of the first embodiment, the voltage adjustment unit 41 (see FIG. 3) is included. Thereby, the strength of the alternating electric field in the oil tank 61 is easily adjusted to the optimum strength according to the type of the oil 61a or the type or quantity of the food 61b fried in the oil 61a stored in the oil tank 61. And can be set. Therefore, the effect of the alternating electric field on the frying processing by the fryer can be further improved while reducing the fryer introduction cost and the operating cost.

<Effect of AC electric field on deep-fried food processing>
Next, the effect of the alternating electric field on the deep-fried food processing by the fryer of the second embodiment will be described.

  First, a flyer that does not have a space potential generator is referred to as Comparative Example 7, and a flyer according to Embodiment 2 that is a flyer that includes the space potential generator 6 is referred to as Example 7. Further, as the electrode part 2 provided in the flyer of Example 7, an electrode part whose upper and lower surfaces were covered with an insulating member was used. After the food was continuously fried as the same amount of specimen in the oil tank provided in each fryer of Comparative Example 7 and Example 7, a test for comparing the color tone and odor in the oil tank was performed.

  In the oil tank provided in each fryer of Comparative Example 7 and Example 7, 6 liters of oil was stored. Moreover, the electrode part 2 provided in the fryer of Example 7 is formed of an electrode plate having a shape of 5 cm long × 10 cm wide × 1 mm thick, and both upper and lower surfaces of the electrode plate are made of Teflon (registered). Insulation feet were made of an insulating member made of a PTFE (Polytetrafluoroethylene) material. About the said PTFE raw material, what has the heat resistance which can respond to 260 degreeC was used. The insulating members covering both surfaces of the electrode plate all had a shape of 1 cm in length, 1 cm in width, and 5 mm in thickness on the top and bottom or on one side. In addition, the electrode part 2 can be incorporated in a fryer and the insulating installation surface can be covered to prevent leakage.

  As the power supply line 24 that connects the output terminal 34 (see FIG. 3) of the voltage application device 3 and the electrode unit 2, one that is covered with an insulating member made of Teflon (registered trademark) PTFE material was used. As this PTFE material, one having heat resistance capable of supporting up to 260 ° C. was used. Note that the flyer of Comparative Example 7 and the flyer of Example 7 were installed 4 m apart from each other so as not to affect each other.

  Moreover, the voltage applied to the electrode part 2 was set to 800V, and the voltage directly applied to the oil 61a stored in the oil tank 61 was set to 800V.

  Specifically, 28 kg of chicken (starch adherence), oil 61a after being continuously fried 300g at a time, color tone, odor, acid value (AV (Acid Value) value), peroxide value ( POV (Peroxide Value) value) and acrylamide (Acrylamide) production amount were compared. The color tone was judged visually, and the odor was judged by sensory evaluation by an odor judge who is a national qualification certified by the Ministry of the Environment. Acid value is a standard value for deterioration in Japan. The peroxide value is not a general degradation standard value, but was measured for multifaceted verification.

  Regarding acrylamide, the Food Safety Committee of the Japanese Cabinet Office, which is considering the risks associated with acrylamide as a chemical substance in foods, has proposed an evaluation plan as a “genotoxic carcinogen”. In addition, FDA (Food and Drug Administration) has taken the risk of carcinogenicity and genetic damage in the “FDA Draft Action Plan for Acrylamide in Food”. It has been reported that acrylamide substances can be produced in processed foods. In addition, food prepared by fried or baked raw materials rich in carbohydrates at temperatures higher than 120 ° C by a collaborative research group of the Swedish National Food Agency and the University of Stockholm on April 24, 2002 contains acrylamide. Has been announced. Thus, since acrylamide has a risk of becoming a carcinogenic substance, the amount of acrylamide produced was also verified.

  Under the above-mentioned conditions, the same amount of food is continuously fried in each fryer of Comparative Example 7 and Example 7 for 3 days so that the equivalent frying condition can be realized, and then the oil used from the fryer is collected. Each item was compared. In addition, it measured with the thermometer so that the core temperature immediately after frying may be 75 degreeC.

  As a result, in all of the color tone, odor sensation, acid value, and oxide value, the deterioration suppression effect of suppressing the deterioration of oil was greater in Example 7 than in Comparative Example 7. Moreover, in Example 7, it became clear that the amount of acrylamide produced was reduced by a quarter compared to Comparative Example 7.

  Among these, regarding the color tone, the color difference of the oil on the second day from the start of the test was compared between Comparative Example 7 and Example 7. Here, the color difference is a comprehensive comparison of the difference between the oil before cooking and the oil after cooking in the L × a × b color system, where L is lightness, + a is red, and −a is Green, + b is yellow, and -b is blue. The color difference value (dE) is determined to be large at 6.0 or more according to NBS (National Bureau of Standards) units.

  As a result, the color of the fryer oil of Example 7 is brighter than the color of the fryer oil of Comparative Example 7, the color difference is 6.43, and the fryer oil of Comparative Example 7 is more dirty. It was revealed.

  Further, between the fryer oil of Comparative Example 7 and the fryer oil of Example 7, a plurality of inspectors including an odor judger evaluated the odor of the oil. As a result, a result is obtained that “the fryer oil of Example 7 feels weaker than the fryer oil of Comparative Example 7, which has a fragrance reminiscent of fried chicken and a fragrance that is evaluated as fragrant”. It was revealed that odors such as deep-fried rice were less likely to remain in the oil.

  Further, visual comparison was made on the fryer oil of Example 7 and the fryer oil of Comparative Example 7. As a result, in Comparative Example 7, crab bubbles were generated in addition to darkening, and when 200 g of fried potato was further fried after the test, the oil smoke when the last 100 g was fried was in the state of steam in the bath. Therefore, the working environment deteriorated, and stickiness and odor were generated. On the other hand, in Example 7, crab bubbles were not generated and the oil level was calm.

  Moreover, about the peroxide value, between the fryer of Example 7 and the fryer of the comparative example 7, the state of the oil after performing the test which fries 200g potato for 3 days was compared. As a result, the peroxide value of the fryer oil of Example 7 was 1.89, whereas the peroxide value of the fryer oil of Comparative Example 7 was 2.77. Compared to the fryer of Comparative Example 7, it was revealed that the oil deterioration was suppressed by 32%.

  In addition, for acrylamide, after the test described above between the flyer of Example 7 and the flyer of Comparative Example 7, a further test was conducted in which 100 g of potato was further fried and the content of acrylamide contained in the french fries was compared. went. As a result, the content of acrylamide in the fried potato fried in the fryer of Comparative Example 7 was 425 μg / kg, and the content of acrylamide in the fried potato fried in the fryer of Example 7 was 113 μg / kg. The fryer of Example 7 was found to be able to reduce the acrylamide content by a factor of four compared to the fryer of Comparative Example 7. Acrylamide can be a carcinogen, and the production of acrylamide by degraded oil is regarded as a problem internationally. Therefore, it is very significant that the space potential generator 6 can reduce the acrylamide content.

  Next, using the fryer of each of Comparative Example 7 and Example 7, 80 g of French fries were mixed in the oil stored in the oil tank, and the temperature of the oil when fried at a temperature of 170 ° C. A test to compare changes was performed.

  As a result, in the fryer of Comparative Example 7, the moisture of the food material was combined with the oil and emulsified, and mixed in the oil. However, in the fryer of Example 7, the oil was combined with the electrons, so that the oil Since the water does not bind, the water content of the foodstuff instantly evaporates and does not enter the oil. For this reason, the oil temperature is always kept constant, so that the frying time can be shortened. Further, in the fryer of Example 7, only water was evaporated as water vapor. Therefore, oil mist around the fryer can be reduced, and the oil does not adhere to the kitchen or the store, which is hygienic. Moreover, in the fryer of Example 7, evaporation of oil can be suppressed. For this reason, it is possible to suppress the smell of oil that is generated during frying. For example, in the case of a store, it is possible to prevent the smell of oil from being added to a customer's clothing.

  Moreover, the test which compares the frying time using frozen deep-fried using the fryer of each of the comparative example 7 and Example 7 was done.

  In the oil tank provided in each fryer of Comparative Example 7 and Example 7, 6 liters of oil was stored. In each of the flyers of Comparative Example 7 and Example 7, the temperature was set to 165 ° C., and the test was performed by measuring the center temperature of the deep-fried chicken when 2 minutes 30 seconds and 3 minutes passed. .

  As a result, in the fryer of Example 7, the center temperatures of the deep-fried chicken when 2 minutes 30 seconds and 3 minutes passed were 83.6 ° C. and 95 ° C., whereas in the fryer of Comparative Example 7, The center temperature of fried chicken when 2 minutes 30 seconds and 3 minutes have elapsed is 34.6 ° C. and 80 ° C., and the fryer of Example 7 has higher thermal conductivity of oil and shortens the frying time. It became clear that we could do it.

  In addition, when the space potential generator 6 is installed in a fryer that is used in an actual store and has a monthly oil consumption of 405 liters (22.5 cans), the frying temperature is set and the space potential generator 6 is installed. It was possible to lower the temperature from 180 ° C. before the operation to 170 ° C. As a result, the monthly oil usage at the store was 108 liters (6 cans), and the monthly oil usage could be reduced by 73%. Also, the frying time could be shortened by 10% or more, and the working efficiency was improved.

  As described above, according to the flyer of the second embodiment having the space potential generator 6 provided in the oil tank 61, by forming an AC electric field in the oil tank 61 by the space potential generator 6, heat conduction of oil The rate was high, and the ingredients were deeply fried and the ingredients were fried and the best effect was obtained. In addition, the vaporization of water vapor eliminated the phenomenon of oily smoke, and there was no pain in the eyes of workers in the kitchen.

(Embodiment 3)
<Water activation device>
Next, the water activation apparatus of Embodiment 3 is demonstrated. The water activation apparatus according to the third embodiment forms an alternating electric field in the water tank, and electrolyzes and activates the water stored in the water tank in which the alternating electric field is formed. In addition, the water activation device of the third embodiment has a space potential generation device as an electric field forming device that forms an alternating electric field.

  FIG. 15 is a cross-sectional view schematically showing an example of the water activation device of the third embodiment. As shown in FIG. 15, the water activation device according to the third embodiment includes a water tank 62, an electrode unit 2, and a voltage application device 3. Water 62 a is stored in the water tank 62. The electrode unit 2 is provided in the water tank 62 and is preferably immersed in water 62 a stored in the water tank 62. The voltage application device 3 forms an AC electric field in the water tank 62 by applying an AC voltage VL <b> 1 (see FIG. 3) to the electrode unit 2. A space potential generator 6 that forms an alternating electric field in the water tank 62 is formed by the electrode unit 2 and the voltage application device 3.

  The water activation device according to the third embodiment may not include the water tank 62. In such a case, the water activating device including only the electrode unit 2 and the voltage applying device 3 is combined with the water tank and subjected to electrolytic treatment, and used for activating water. Moreover, even when the electrode part 2 is not immersed in the water 62a, the effect similar to the case where the electrode part 2 is immersed in the water 62a can be acquired.

  About the electrode part 2 and the voltage application apparatus 3 with which the water activation apparatus of this Embodiment 3 was equipped, it is made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness preservation apparatus of Embodiment 1 was equipped. The details are omitted.

  The water activation device according to the third embodiment is provided by combining the water tank 62 and the space potential generator 6, and forms an alternating electric field in the water tank 62 by discharging static electricity from the electrode unit 2 into the water tank 62. Then, the water 62 a is activated while applying the formed AC electric field to the water 62 a stored in the water tank 62. Thereby, the introduction cost and the operation cost of the water activation device can be reduced, and the water 62a stored in the water tank 62 is efficiently activated by the effect of the AC electric field formed by the space potential generation device 6. be able to.

When water is electrolyzed by applying a DC voltage between the two electrodes, active oxygen (OH, etc.) is generated at the anode, and various organic substances are oxidized by the generated active oxygen, and at the cathode. Generates hydrogen (H ⁺ ), and various organic substances are reduced by the generated hydrogen. Alternatively, when a DC voltage is applied between the two electrodes to electrolyze water containing chloride ions (Cl ⁻ ) such as seawater, hypochlorous acid (HClO) is generated at the anode. Bacteria and the like are oxidatively decomposed by the generated hypochlorous acid. Alternatively, in the case where water containing chloride ions and ammonia nitrogen (NH ₃ ) is electrolyzed by applying a DC voltage between the two electrodes, ammonia nitrogen reacts and harmless nitrogen (N ₂ ).

On the other hand, the water activation device of the third embodiment is provided with only one electrode portion 2. Even in such a case, when the AC voltage is applied to the electrode portion 2, the period in which the electrode portion 2 is an anode and the period in which the electrode portion 2 is a cathode are repeated. Therefore, when electrolyzing water, hydrogen and active oxygen are generated from the electrode part 2, and when electrolyzing water containing chloride ions, hypochlorous acid is generated and chloride ions are generated. When water containing water and ammoniacal nitrogen (NH ₃ ) is electrolyzed, nitrogen is generated.

  As a result, when various organic substances are present in the water 62a stored in the water tank 62, the organic substances can be oxidized and removed, and when bacteria or the like are present in the water 62a, Bacteria and the like can be sterilized by oxidative decomposition, and when the water 62a contains ammoniacal nitrogen, the ammoniacal nitrogen can be converted to nitrogen and removed. That is, the water 62a stored in the water tank 62 can be activated.

  Moreover, the water activation apparatus of this Embodiment 3 has the space potential generator 6 provided with the electrode part 2 and the voltage application apparatus 3 similarly to the freshness holding apparatus of Embodiment 1, and has a voltage application apparatus. 3 has the voltage adjustment part 41 (refer FIG. 3) similarly to the freshness holding | maintenance apparatus of Embodiment 1. FIG. Thereby, the strength of the alternating electric field in the water tank 62 is optimum depending on the type or quantity of organic matter or bacteria present in the water 62a, or the content of ammoniacal nitrogen contained in the water 62a. Can be easily adjusted and set to strength. Therefore, the effect of the alternating electric field on the activation treatment by the water activation device can be further improved while reducing the introduction cost and the operation cost of the water activation device.

<Effect of AC electric field on activation treatment>
In each case, 15 goldfishes having a size of 15 cm long × 2 cm wide × 10 cm high were tested for 6 months in an aquarium 62 having a size of 80 cm long × 2 m wide × 50 cm high.

  The electrode part 2 provided in the water tank 62 is formed by an electrode plate having a shape of 5 cm long × 10 cm wide × 1 mm thick. The upper and lower surfaces of the electrode plate are made of Teflon (registered trademark) PTFE (which is an insulating material). Polytetrafluoroethylene) was used as an insulating foot by an insulating member made of a material. The insulating members covering both surfaces of the electrode plate each had a shape of 1 cm in length, 1 cm in width, and 5 mm in thickness, vertically or on one side. The electrode plate may have other shapes. Moreover, an electrode plate can be built in the wall of a water tank, an insulation installation surface can be covered, and an electric leakage can also be prevented.

  The electrode plate was subjected to a test in which an alternating electric field of 2200 V was applied and 15 goldfish were grown for 6 months as described above. No cleaning was performed for 6 months, and the filtration part was not cleaned at all. Moreover, the filter part was not exposed to light, and the dark environment was prepared avoiding sunlight. The bait was given once or twice a day and grown according to the usual breeding method.

  As a result, after 6 months, the surface inside the aquarium had no dirt and could be kept clean. In addition, in both the water tank and the filtration part, there was no turbidity of water and no odor was generated, and the best results were obtained. Thus, by adjusting the voltage according to the size of the water tank or the amount of water, it was possible to form an appropriate environment for the target aquatic organisms. Moreover, since the electrode plate can be installed in the water tank 62, the fish cells are activated, which leads to the health of the fish itself. When an AC electric field is formed by providing a bipolar electrode plate, it cannot be used in a state where fish is contained in the aquarium, but as described above, an AC electric field is formed by providing only a single electrode plate. In some cases, the fish tank 62 can be used with fish in it. That is, according to the water activation apparatus of the third embodiment, it is considered that water activation leads to water purification by electrolysis.

<Effect of voltage regulator>
According to the voltage adjustment unit 41 in the water activation device of the third embodiment, the voltage applied to the electrode unit 2 can be adjusted according to the size of the aquarium or the number of fish. If the alternating electric field applied to aquatic organisms such as fish is too strong, the aquatic organisms may be adversely affected. However, according to the voltage adjustment unit 41 in the water activation device of the third embodiment, aquatic organisms may be adversely affected. Water can be activated without adversely affecting the organism.

(Embodiment 4)
<Aquaculture equipment>
Next, an aquaculture device according to Embodiment 4 will be described. The aquaculture apparatus according to the fourth embodiment forms an alternating electric field in the aquarium and cultivates aquatic organisms in the aquarium where the alternating electric field is formed. In addition, the aquaculture apparatus of the fourth embodiment has a space potential generator as an electric field forming apparatus that forms an alternating electric field.

  FIG. 16 is a cross-sectional view schematically illustrating an example of the aquaculture device according to the fourth embodiment. As shown in FIG. 16, the aquaculture device according to the fourth embodiment includes a water tank 63, an electrode unit 2, and a voltage application device 3. In the water tank 63, for example, water 63a such as seawater is stored. The electrode unit 2 is provided in the water tank 63 and is preferably immersed in water 63 a stored in the water tank 63. The voltage application device 3 forms an AC electric field in the water tank 63 by applying an AC voltage VL <b> 1 (see FIG. 3) to the electrode unit 2. A space potential generator 6 that forms an alternating electric field in the water tank 63 is formed by the electrode unit 2 and the voltage application device 3.

  Note that the aquaculture apparatus according to the fourth embodiment may not include the water tank 63. In such a case, a culture device including only the electrode unit 2 and the voltage application device 3 is combined with a water tank and used for aquatic organism culture.

  About the electrode part 2 and the voltage application apparatus 3 with which the aquaculture apparatus of this Embodiment 4 was equipped, it can be made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of Embodiment 1 was equipped. The details are omitted here.

  The aquaculture device of the fourth embodiment forms an alternating electric field in the water tank 63 by discharging static electricity from the electrode unit 2 into the water tank 63, and applies the formed alternating electric field to the aquatic organism 63b such as fish. The aquatic organism 63b is cultivated. At this time, because of the effect of the alternating electric field, water molecules in the aquatic organism 63b can be irradiated with electromagnetic waves having a specific wavelength, so that the cells in the aquatic organism 63b are activated and the vitality of the aquatic organism 63b is activated. Meanwhile, the aquatic organism 63b can be cultured.

  In addition, the aquaculture device of the fourth embodiment includes a normal water tank 63, an electrode unit 2, and a voltage application device 3. In addition, as described above, the aquatic organism 63b can be cultured while activating the vitality of the aquatic organism 63b by the effect of the alternating electric field. Therefore, according to the aquaculture apparatus of the fourth embodiment, the introduction cost and the operation cost of the aquaculture apparatus can be reduced, and the aquatic organism 63b can be efficiently used by the effect of the AC electric field formed by the space potential generator 6. Can be farmed.

  In addition, the voltage application device 3 does not have a ground electrode, and when the electrode part 2 as the electrostatic discharge means is covered with an insulating material, corona discharge does not occur and the electrode part 2 Static electricity released to the surroundings will not cause a dielectric breakdown and discharge. Moreover, although the electrode part 2 physically vibrates at a low frequency, the alternating electric field propagates and spreads around the electrode part 2 along with the vibration at the low frequency, and an electric field can be formed in a wide range.

  In the case of the conventional AC type electric processing method having two electrodes, the current value is 10 to 20 A, which is high, and there is a risk of electric shock from aquatic organisms such as fish or human beings in aquaculture. I couldn't put the electrode inside. Therefore, sterilization treatment was performed by applying high voltage between two electrodes installed separately from the water tank while passing seawater or fresh water taken out from the water tank. Can only be sterilized when it is circulated, and lacks stability.

  On the other hand, according to the aquaculture apparatus of the fourth embodiment, a low voltage and low frequency AC voltage is applied to the electrode unit 2, so there is no risk of aquatic organisms 63 b such as fish or human beings being electrocuted, and safety. Can be used for Moreover, in order to activate a cell, the vitality of aquatic organisms 63b such as fish cultivated in the aquarium 63 can be activated. Specifically, when the epidermis turns black, and the fish that is not active and healthy is cultivated in the aquarium 63, the fish becomes active on the fifth day, starting from the first day of the culture. The skin that turned black was gone, and it returned to a healthy state.

  Further, the aquaculture apparatus of the fourth embodiment has a space potential generating device 6 including the electrode unit 2 and the voltage application device 3 as in the freshness maintaining device of the first embodiment. As with the freshness maintaining device of the first embodiment, the voltage adjustment unit 41 (see FIG. 3) is included. Thereby, the intensity | strength of the alternating current electric field in the water tank 63 can be easily adjusted and set to optimal intensity | strength according to the kind or quantity of the aquatic organism 63b cultivated. Therefore, it is possible to further improve the effect of the alternating electric field on the aquaculture treatment by the aquaculture device while reducing the introduction cost and the operation cost of the aquaculture device.

<Effect of voltage regulator>
According to the voltage adjustment unit 41 in the aquaculture apparatus of the fourth embodiment, it is possible to adjust the voltage applied to the electrode unit 2 according to the size of the aquarium or the number of fish. If the alternating electric field applied to aquatic organisms such as fish is too strong, the aquatic organisms may be adversely affected. However, according to the voltage adjustment unit 41 in the aquaculture apparatus of the fourth embodiment, the aquatic organisms are affected. Aquatic organisms can be cultured without adverse effects.

(Embodiment 5)
<Storage device>
Next, a storage device according to the fifth embodiment will be described. The storage device of the fifth embodiment forms an AC electric field in the storage space for storing the stored item, and the stored item in a state where the freshness of the stored item is maintained in the storage space where the AC electric field is formed. Keep.

  FIG. 17 is a cross-sectional view schematically illustrating an example of the storage device according to the fifth embodiment. FIG. 18 is a perspective view schematically showing an example of the storage device according to the fifth embodiment. In FIG. 18, the illustration of the feeder line 24 is omitted.

  As shown in FIGS. 17 and 18, the room temperature storage of the fifth embodiment includes a room temperature storage 64. The room temperature storage 64 is a demarcating part that defines a storage space 64b for storing the storage object 64a. The storage space 64b is formed in the room temperature storage 64. As the room temperature storage 64, for example, a room temperature storage having a shelf board 64c can be used.

  The storage device according to the fifth embodiment includes the electrode unit 2 and the voltage application device 3 as in the freshness maintaining device according to the first embodiment, and the electrode unit 2 and the voltage application device 3 provide space. A potential generator 6 is formed. The electrode unit 2 and the voltage application device 3 provided in the storage device according to the fifth embodiment can be the same as the electrode unit 2 and the voltage application device 3 provided in the freshness maintaining device according to the first embodiment. The details are omitted here.

  In the fifth embodiment, the electrode unit 2 is provided so as to hang down from the ceiling 64d of the room temperature storage 64. The electrode part 2 has a sheet-like electrode 2a as an output sheet (discharge sheet or discharge sheet) that can be bent softly. The sheet-like electrode 2a is affixed to a screen 64f provided so as to be able to be taken up by a take-up portion 64e. When the space potential generator 6 is used, the sheet-like electrode 2a is integrally hung with the screen 64f drawn out from the winding portion 64e, and when the space potential generator 6 is not used, the sheet-like electrode 2a. Is wound up integrally with the screen 64f by the winding portion 64e. The sheet-like electrode 2a exhibits the effect of an alternating electric field on both the front and back sides of the sheet-like electrode 2a. The hanging and winding of the screen 64f may be manually operated using, for example, the remote controller 64g, and may be automatically operated, for example, depending on the temperature and time zone.

  Thereby, the freshness of the article to be stored 64a stored in the room temperature storage 64 can be maintained for a long time. Further, the introduction cost and the operation cost of the storage device can be reduced, and the freshness of the storage object 64a can be maintained in the storage space 64b for a long period of time due to the effect of the AC electric field formed by the space potential generator 6. it can. Although not shown in FIGS. 17 and 18, the electrode part 2 is covered with an insulating member. The room temperature storage 64 may be a storage as small as a home refrigerator.

  Suitably, the electrode part 2 can be provided in the approximate center in the planar view of the storage space 64b formed in the normal temperature storage 64. Thereby, a uniform AC electric field can be formed in the room temperature storage 64, that is, in the storage space 64b.

  In addition, the storage device of the fifth embodiment has a space potential generating device 6 including the electrode unit 2 and the voltage applying device 3, similar to the freshness maintaining device of the first embodiment. As with the freshness maintaining device of the first embodiment, the voltage adjustment unit 41 (see FIG. 3) is included. As a result, the strength of the AC electric field in the room temperature storage 64 is easily adjusted to the optimum strength according to the type, quantity or packaging status of the storage object 64a, or the temperature or humidity in the storage space 64b. Can be set. Therefore, while reducing the introduction cost and operation cost of the storage device, the effect of the AC electric field on the storage processing by the storage device can be further improved, or the influence range is controlled and the increase / decrease of the target space is controlled. be able to.

<Effect of AC electric field on storage process>
Next, the effect of the alternating electric field on the storage process by the storage device of the fifth embodiment will be described.

  First, a storage device that does not have a space potential generator is referred to as Comparative Example 8, and a storage device according to Embodiment 5 that is a storage device that includes the space potential generator 6 is referred to as Example 8. Moreover, in order to investigate the net effect of the alternating electric field formed by the space potential generator, the electrode part 2 whose upper and lower surfaces are not covered with an insulating member is used as the electrode part 2 provided in the freshness maintaining apparatus of Example 8. Using.

  Each of the plants inserted in the vase in which about half of the water is stored is put in the room temperature storage 64 provided in each storage device of Comparative Example 8 and Example 8, and the test start date is the first day. The test which compares the preservation | save state of the plant in the 8th day after storing in the normal temperature storage 64 from the test start date to the 8th day was done. Here, the temperature in the room temperature storage provided in each storage device of Comparative Example 8 and Example 8 was 20 to 30 ° C. Moreover, the voltage applied to the electrode part 2 was set to 2000V, and the voltage applied directly to a plant was set to 50V.

  19 and 20 are diagrams showing plants stored in the storage device of Comparative Example 8 and Example 8. FIG. The left side of FIG. 19 shows a photograph of the eighth day of the plant stored in the storage device of Comparative Example 8, and the right side of FIG. 19 shows a photograph of the eighth day of the plant stored in the storage device of Example 8. Show. 20 shows a photograph of the eighth day of the plant stored in the storage device of Comparative Example 8, and the right side of FIG. 20 shows the eighth day of the plant stored in the storage device of Example 8. A photograph is shown.

  As shown on the left side of FIG. 19 and the left side of FIG. 20, in the plant stored in the storage device of Comparative Example 8, the flowers are discolored, the upper part of the stem is deflated and bent, and the lower part of the stem is It was discolored. On the other hand, as shown on the right side of FIG. 19 and the right side of FIG. 20, the plant stored in the storage device of Example 8 hardly changed from the start of the test. Therefore, it has been clarified that the storage device having the space potential generation device 6 has an effect of extending the storage period of the storage object 64a.

<Effect of voltage regulator>
According to the voltage adjustment unit 41 in the storage device of the fifth embodiment, the voltage applied to the electrode unit 2 is adjusted according to the quantity of storage objects such as fresh flowers to be processed or the size of the storage space 64b. It becomes possible. That is, it is possible to adjust the size of the storage space 64b, which is the range in which the AC electric field affects.

<Modification of Embodiment 5>
The storage device of the fifth embodiment may be provided with a bag instead of the room temperature storage, the electrode unit is provided in the bag, and the human body is stored in the bag in which the electrode unit is provided. It may be. Such a case will be briefly described as a modification of the fifth embodiment. The storage device of this modification forms an alternating electric field in the cage that stores the body, and stores the body in the cage in which the alternating electric field is formed.

  When the storage device of the present modification includes a cage, by discharging static electricity from the electrode portion into the cage, an AC electric field is formed in the cage, and the body is stored while applying the formed AC electric field to the body. . Thereby, since the electromagnetic wave of a specific wavelength can be irradiated to the water molecule in a dead body, the cell in a dead body can be activated and the state change of a dead body can be suppressed. Moreover, by storing in a temperature range of -1 ° C to -5 ° C below freezing point, it becomes possible to manage in a good state while suppressing bacteria. In addition, by providing the voltage adjustment unit 41 (see FIG. 3), it is possible to store several bodies. The number of electrode portions 2 to be connected can be increased according to the number of ridges, and the number of ridges can be increased.

(Embodiment 6)
<Drying device>
Next, the drying apparatus of Embodiment 6 will be described. The drying apparatus according to the sixth embodiment forms an alternating electric field in the drying cabinet, and dries the object to be dried in the drying cabinet in which the alternating electric field is formed. Further, the drying apparatus according to the sixth embodiment has a space potential generator as an electric field forming apparatus that forms an alternating electric field.

  FIG. 21 is a cross-sectional view schematically showing an example of the drying apparatus of the sixth embodiment. As shown in FIG. 21, the drying device according to the sixth embodiment includes a drying cabinet 65, an electrode unit 2, and a voltage application device 3. The drying cabinet 65 is a demarcating portion that defines a drying space 65 b for drying the material to be dried 65 a, and the drying space 65 b is formed in the drying cabinet 65. As the drying cabinet 65, for example, a drying cabinet having a shelf board 65c can be used. The electrode unit 2 is provided in the drying cabinet 65. The voltage application device 3 forms an AC electric field in the drying chamber 65 by applying an AC voltage VL1 (see FIG. 3) to the electrode unit 2. The electrode unit 2 and the voltage application device 3 form a space potential generator 6 that forms an alternating electric field in the drying chamber 65.

  Note that the drying apparatus according to the sixth embodiment may not include the drying cabinet 65. In such a case, a drying device including only the electrode unit 2 and the voltage application device 3 is used for drying an object to be dried in combination with a drying cabinet.

  About the electrode part 2 and the voltage application apparatus 3 with which the drying apparatus of this Embodiment 6 was equipped, it can be made to be the same as that of the electrode part 2 and the voltage application apparatus 3 with which the freshness holding apparatus of Embodiment 1 was equipped. The details are omitted here.

  As a method for drying a material to be dried, there is a method in which hot air is forcibly blown onto the material to be dried for drying. However, such a method has a problem that the power consumption is large, the electricity cost is high, and the operation cost of the drying apparatus is high, or the color is changed by drying at a high temperature.

  In addition, as a method for drying an object to be dried, there is a method in which water containing water is rapidly cooled and subjected to primary freezing and freezing, and then ice is sublimated and dried. However, although such a method improves the quality of the material to be dried after drying, there is a problem that the price of the freeze dryer is very high and the introduction cost of the drying apparatus is high.

  In addition, as a method of drying an object to be dried, there is a method of dehumidifying a drying chamber to remove moisture in the air in the chamber and adjusting the relative humidity to dry. Such a method is characterized in that energy consumption can be reduced to about 50% compared to a method in which hot air is blown to dry and cells in the material to be dried are not easily destroyed. However, such a method has a problem that the drying speed is slow and the material to be dried cannot be efficiently dried.

  That is, in the conventional method of drying an object to be dried, it has been difficult to efficiently dry the object to be dried while reducing the introduction cost and operating cost of the drying apparatus.

  On the other hand, in the drying apparatus of the sixth embodiment, by discharging static electricity from the electrode unit 2 into the drying chamber 65, an alternating electric field is formed in the drying chamber 65, and the formed alternating electric field is applied to the object to be dried 65a. The object to be dried 65a is dried while being applied. At this time, due to the effect of the alternating electric field, water molecules in the object to be dried 65a can be irradiated with electromagnetic waves having a specific wavelength, so that the water molecules in the object to be dried 65a easily vibrate and easily evaporate. Increases drying speed. In such a case, the electrode unit 2 and the voltage application device 3 can be introduced and operated at low cost, and the object to be dried 65a can be efficiently dried in the drying chamber 65.

  Further, the drying device of the sixth embodiment has a space potential generator 6 including the electrode unit 2 and the voltage application device 3, similar to the freshness maintaining device of the first embodiment. As with the freshness maintaining device of the first embodiment, the voltage adjustment unit 41 (see FIG. 3) is included. Thereby, the strength of the alternating electric field in the drying cabinet 65 is easily adjusted to the optimum strength according to the type, quantity or packaging status of the object to be dried 65a, or the temperature or humidity in the drying space 65b, Can be set. Therefore, it is possible to further improve the effect of the alternating electric field on the drying process by the drying device or to control the target space while reducing the introduction cost and the operation cost of the drying device.

  The material to be dried is not particularly limited. Therefore, using the drying apparatus of the sixth embodiment, chili, radish, nanban, potato, bellflower, red ginseng, tangerine, shiitake mushroom, beef jerky, dried persimmon, garlic, coffee, tobacco, boiled, shrimp, shrimp, dried fish Various dried objects such as walleye pollock or sea cucumber can be dried.

<Modification of Embodiment 6>
FIG. 22 is a side view including a partial cross-section schematically showing a drying apparatus according to a modification of the sixth embodiment. As shown in FIG. 22, the drying device of this modification includes a large drying chamber 66 instead of the drying cabinet 65 (see FIG. 21). The drying chamber 66 is a demarcating portion that defines a drying space 66 b for drying the material to be dried 66 a, and the drying space 66 b is formed in the drying chamber 66. As the drying chamber 66, for example, a drying chamber having a shelf board 66c can be used.

  Further, the drying device of this modification includes the electrode unit 2 and the voltage application device 3 as in the drying device of the sixth embodiment, and the space potential generator is configured by the electrode unit 2 and the voltage application device 3. 6 is formed. The electrode unit 2 and the voltage application device 3 provided in the drying device of the present modification can be the same as the electrode unit 2 and the voltage application device 3 provided in the freshness maintaining device of the first embodiment. Details are omitted here.

  In this modification, the electrode unit 2 is provided under the ceiling 66 d of the drying chamber 66. Thereby, the drying time of the to-be-dried object 66a dried in the drying chamber 66 can be shortened. In addition, although illustration is abbreviate | omitted in FIG. 22, the electrode part 2 is covered with the insulating member.

  Suitably, the electrode part 2 can be provided in the approximate center in the planar view of the drying space 66b formed in the drying chamber 66. Thereby, a uniform AC electric field can be formed in the drying chamber 66, that is, in the drying space 66b.

<Effect of AC electric field on drying treatment>
Next, the effect of the alternating electric field on the drying process by the drying apparatus of the sixth embodiment will be described.

  First, a drying apparatus that does not have a space potential generator is referred to as Comparative Example 9, and a drying apparatus according to Embodiment 6 that is a drying apparatus that includes the space potential generator 6 is referred to as Example 9. In each of the drying apparatuses of Comparative Example 9 and Example 9, the Chinese frozen chili, i.e., squid chili, is placed in the drying chamber, and the drying time is compared at a temperature of 58 ° C. by the dehumidifying drying method. A test was conducted.

The drying space formed in the drying cabinet provided in each of the drying apparatuses of Comparative Example 9 and Example 9 has a plane area of 2.3 m ^{2 and} a volume that can accommodate a maximum of 300 kg to be dried. Was. The electrode unit 2 provided in the drying apparatus of Example 9 is formed of an electrode plate having a planar shape of 20 cm long × 30 cm wide, and the upper and lower surfaces of the electrode plate are made of plastic (ABS resin plate) as an insulating material. ). The insulating members covering the upper and lower surfaces of the electrode plate all had a shape of 30 cm long × 40 cm wide × 150 mm thick.

  Moreover, the voltage applied to the electrode part 2 was set to 2200V, and the voltage directly applied to the Chinese frozen chili arrange | positioned in the drying chamber was set to 30V.

  As a result, the drying time in the drying apparatus of Example 9 was 28 hours, the drying time in the drying apparatus of Comparative Example 9 was 38 hours, and in the case of Example 9, the drying time was 10 hours compared to Comparative Example 9. We were able to shorten the time. This means that the drying time in Example 9 was shortened by about 26% compared to the drying time in Comparative Example 9. Moreover, since the power consumption in Example 9 was able to be reduced about 16% compared with the power consumption in Comparative Example 9, the power consumption in Example 9 was 40% compared with the power consumption in Comparative Example 9. % Was able to be reduced.

  When the drying temperature was changed from 58 ° C. to 52 ° C., the drying time in the drying device of Example 9 was 38 hours, and the drying time in the drying device of Comparative Example 9 was 48 hours. In this case, compared with Comparative Example 9, the drying time could be shortened by about 10 hours. By drying at a lower temperature than usual, it was possible to develop a high-quality red color similar to sun-dried.

  Next, a drying apparatus that does not have a space potential generator is referred to as Comparative Example 10, and a drying apparatus according to Embodiment 6 that is a drying apparatus that includes the space potential generator 6 is referred to as Example 10. A test was conducted to compare the drying time when the general frozen chili was put in the drying cabinet provided in each drying apparatus of Comparative Example 10 and Example 10 and dried at a temperature of 58 ° C. by a dehumidifying drying method. .

The drying space formed in the drying cabinet provided in each of the drying apparatuses of Comparative Example 10 and Example 10 has a flat area of 6.6 m ² and can accommodate a maximum of 1.2 tons of objects to be dried. Had a volume. The electrode unit 2 provided in the drying apparatus of Example 10 is formed of an electrode plate having a planar shape of 20 cm long × 30 cm wide, and the upper and lower surfaces of the electrode plate are made of plastic (ABS resin plate) as an insulating material. ). The insulating members covering the upper and lower surfaces of the electrode plate all had a shape of 30 cm long × 40 cm wide × 8 mm thick.

  Moreover, the voltage applied to the electrode part 2 was set to 1800V, and the voltage directly applied to the Chinese frozen pepper arrange | positioned in the drying store was set to 20V.

  As a result, the drying time in the drying device of Example 10 was 42 hours, the drying time in the drying device of Comparative Example 10 was 56 hours, and in the case of Example 10, the drying time was 14 hours compared to Comparative Example 10. We were able to shorten the time. This means that the drying time in Example 10 was shortened by about 24% compared to the drying time in Comparative Example 10. Moreover, since the power consumption in Example 10 was able to be reduced about 17% compared with the power consumption in Comparative Example 10, the power consumption in Example 10 was 41 compared with the power consumption in Comparative Example 10. % Was able to be reduced.

  Next, a drying apparatus that does not have the space potential generator is referred to as Comparative Example 11, and a drying apparatus according to a modification of the sixth embodiment that is a drying apparatus that includes the space potential generator 6 is referred to as Example 11. The test which compares the drying time at the time of putting a general frozen chili in the drying chamber with which each drying apparatus of the comparative example 11 and Example 11 was equipped, respectively, and drying by a dehumidification drying system at the temperature of 58 degreeC was done.

The drying space formed in the drying chamber provided in each drying apparatus of Comparative Example 11 and Example 11 has a flat area of 83 m ^{2 and} a volume that can accommodate a maximum of 12 tons of objects to be dried. It was. Moreover, the electrode part 2 provided in the drying apparatus of Example 11 is formed of an electrode plate having a planar shape of 20 cm long × 30 cm wide, and the upper and lower surfaces of the electrode plate are plastics (PE plates) that are insulating materials. It was covered with the insulating member which consists of. The insulating members covering the upper and lower surfaces of the electrode plate all had a shape of 30 cm long × 40 cm wide × 8 mm thick.

  Moreover, the voltage applied to the electrode part 2 was set to 2200V, and the voltage applied directly to the Chinese frozen chili arrange | positioned in the drying chamber was set to 20V.

  As a result, the drying time in the drying apparatus of Example 11 was 41 hours, the drying time in the drying apparatus of Comparative Example 11 was 54 hours, and in the case of Example 11, the drying time was 13 hours compared to Comparative Example 11. We were able to shorten the time. This means that the drying time in Example 11 was shortened by about 24% compared to the drying time in Comparative Example 11. Moreover, since the power consumption in Example 11 was able to be reduced about 16% compared with the power consumption in the comparative example 11, the power consumption in Example 11 is 40 compared with the power consumption in the comparative example 11. % Was able to be reduced.

<Effect of voltage regulator>
According to the voltage adjustment unit 41 in the drying apparatus of the sixth embodiment, it is possible to adjust the voltage applied to the electrode unit 2 according to the number of objects and the size of the room. That is, it is possible to adjust the size of the dry space 66b, which is the range in which the AC electric field affects.

(Embodiment 7)
<Aging device>
Next, the aging apparatus of Embodiment 7 will be described. The aging apparatus of the seventh embodiment forms an AC electric field in the aging space, and ripens the material to be aged in the aging space where the AC electric field is formed. Further, the ripening device of the seventh embodiment has a space potential generating device as an electric field forming device that forms an alternating electric field.

  FIG. 23 is a cross-sectional view schematically showing an example of the aging apparatus of the seventh embodiment. As shown in FIG. 23, the aging apparatus of the seventh embodiment includes a refrigerator 67, an electrode unit 2, and a voltage application device 3. The refrigerator 67 is a demarcating portion that delimits an aging space 67 b for aging the material to be aged 67 a, and the aging space 67 b is formed in the refrigerator 67. As the refrigerator 67, for example, a commercial vertical refrigerator having a shelf board 67c can be used. The electrode unit 2 is provided in the refrigerator 67, that is, in the aging space 67b. The voltage application device 3 forms an AC electric field in the refrigerator 67 by applying an AC voltage VL <b> 1 (see FIG. 3) to the electrode unit 2. The electrode section 2 and the voltage application device 3 form a space potential generator 6 that forms an alternating electric field in the refrigerator 67.

  Note that the aging device of the seventh embodiment may not include the refrigerator 67. In such a case, the aging apparatus provided only with the electrode unit 2 and the voltage applying device 3 is used for aging of the product to be matured in combination with the refrigerator.

  The electrode unit 2 and the voltage application device 3 provided in the ripening device of the seventh embodiment can be the same as the electrode unit 2 and the voltage application device 3 provided in the freshness maintaining device of the first embodiment. The details are omitted here.

  The aging apparatus of the seventh embodiment forms an AC electric field in the aging space 67b by discharging static electricity from the electrode unit 2 into the aging space 67b, and applies the formed AC electric field to the aged product 67a. The matured product 67a is aged. At this time, due to the effect of the alternating electric field, water molecules in the matured product 67a can be irradiated with electromagnetic waves having a specific wavelength, so that the cells in the matured product 67a are activated and the freshness of the matured product 67a is increased. Aging of the material to be aged 67a can be promoted while being held.

  Foods such as meat can be quickly aged by increasing the amino acid content by adjusting the temperature. In the case of meat, it is usually matured over 15 days, so that special equipment is required for controlling bacterial growth or temperature control during that period, and strict management by specialists is required.

  On the other hand, by using the ripening apparatus of the seventh embodiment having a space potential generator, it is possible to suppress the growth of bacteria and to obtain the best ripening effect in a short period of time. And by installing the space potential generator 6 in an existing refrigerator, beef, pork or chicken in a weight unit of several tons or more can be aged and stored at low cost in a short time.

  Further, the aging apparatus of the seventh embodiment includes a normal refrigerator 67, the electrode unit 2, and the voltage application device 3. Further, as described above, aging of the material to be aged 67a disposed in the aging space 67b can be promoted by the effect of the alternating electric field. Therefore, according to the aging apparatus of the seventh embodiment, the introduction cost and the operating cost of the aging apparatus can be reduced, and the effect of the AC electric field formed by the space potential generating device 6 can be reduced in the aging space 67b. The aged product 67a can be aged efficiently.

  Moreover, in the aging apparatus of this Embodiment 7, the voltage application apparatus 3 has the voltage adjustment part 41 (refer FIG. 3) similarly to the freshness holding apparatus of Embodiment 1. FIG. Thereby, the strength of the AC electric field formed by the space potential generator 6 in the refrigerator 67 is set to an optimum strength according to the type, quantity or packaging status of the product to be aged 67a, or the temperature or humidity in the aged space 67b. It can be easily adjusted and set. Therefore, it is possible to further improve the effect of the alternating electric field on the aging treatment by the aging device or to control the target space while reducing the introduction cost and the operating cost of the aging device.

<Effect of AC electric field on aging treatment>
Next, the effect of the alternating electric field on the aging process by the aging apparatus of the seventh embodiment will be described.

  First, a ripening apparatus that does not have a space potential generation device is referred to as Comparative Example 12, and a ripening device according to Embodiment 7 that is a ripening device that includes the space potential generation device 6 is referred to as Example 12. In each refrigerator of Comparative Example 12 and Example 12, 1 kg of beef shoulder loin block was placed in the refrigerator, and the beef was aged from the test start date to the 30th day, starting from the test start date. At that time, a test was performed to measure the content of glutamic acid per 100 g of beef on the 15th and 30th days. Here, the temperature in the refrigerator provided in each ripening apparatus of Comparative Example 12 and Example 12 was 2 ° C.

The aging space formed in the refrigerator provided in each of the aging devices of Comparative Example 12 and Example 12 had a flat area of 4 m ^{2 and} a volume capable of accommodating a maximum of 150 kg of aged material. . Moreover, the electrode part 2 provided in the ripening apparatus of Example 12 is formed of an electrode plate having a planar shape of 20 cm long × 30 cm wide, and the upper and lower surfaces of the electrode plate are made of plastic (ABS resin plate) as an insulating material ). The insulating members covering the upper and lower surfaces of the electrode plate all had a shape of 30 cm long × 40 cm wide × 8 mm thick.

  Moreover, the voltage applied to the electrode part 2 was set to 1800V, and the voltage directly applied to the beef arranged in the refrigerator 67 was set to 50V.

  First, on the fifteenth day, the beef ripened by the ripening apparatus of Example 12 had no mold on the surface and hardly discolored. On the other hand, about the beef ripened by the ripening apparatus of Comparative Example 12, mold is generated on the surface, and a layer structure is formed inside the beef, for example, a layer boundary is formed between the surface and the center of the meat. It was being done.

  On the other hand, on the 30th day, the surface of the beef ripened by any of the ripening apparatuses of Example 12 and Comparative Example 12 was covered with mold, and a layer structure was formed inside the beef.

  FIG. 24 is a graph showing the measurement results of the content of glutamic acid in beef ripened by the ripening apparatus of Comparative Example 12 and Example 12. As shown in FIG. 24, the content of glutamic acid per 100 g of beef is 21 mg in both Example 12 and Comparative Example 12 on the test start date, and 38 mg in Example 12 on the 15th day. In Example 12, it was 41 mg, and on Day 30, it was 51 mg in Example 12 and 41 mg in Comparative Example 12. That is, in Comparative Example 12, the content of glutamic acid has not increased since the 15th day, and ripening has not been promoted, but in Example 12, the content of glutamic acid has increased even after the 15th day. It was revealed that ripening was promoted.

  Such a result means that the aging of the product to be matured was promoted in Example 12 as compared with Comparative Example 12. Therefore, according to the aging apparatus of the seventh embodiment, the product to be aged 67a can be efficiently aged by the effect of the AC electric field formed by the space potential generator 6, and the AC electric field exerted on the aging treatment by the aging apparatus can be improved. It became clear that the effect was improved.

<Effect of voltage regulator>
According to the voltage adjustment unit 41 in the aging apparatus of the seventh embodiment, it is possible to adjust the voltage applied to the electrode unit 2 according to the number of objects and the size of the room. That is, it is possible to adjust the size of the aging space 67b, which is the range in which the AC electric field affects.

(Embodiment 8)
<Growing device>
Next, a training apparatus according to the eighth embodiment will be described. The growing apparatus according to the eighth embodiment forms an alternating electric field around the object to be grown and grows the growing object on which the alternating electric field is formed. Further, the growing device of the eighth embodiment has a space potential generator as an electric field forming device that forms an alternating electric field.

  FIG. 25 is a cross-sectional view schematically showing an example of the growing apparatus according to the eighth embodiment. As shown in FIG. 25, the growing device according to the eighth embodiment includes a growing unit 68, an electrode unit 2, and a voltage applying device 3. The growing part 68 is accommodated in, for example, the accommodating part 68a and the accommodating part 68a, for example, a plurality of pot parts 68c in which a growing object 68b such as leafy vegetables is respectively planted, for example, above the accommodating part 68a, etc. And an irradiation unit 68d that irradiates light toward the object to be grown 68b. The electrode part 2 is provided around the to-be-cultivated object 68b, for example, near the accommodating part 68a, such as above the accommodating part 68a. The voltage application device 3 applies an alternating voltage VL1 (see FIG. 3) to the electrode unit 2, thereby forming an alternating electric field around the object 68b. The electrode portion 2 and the voltage application device 3 form a space potential generator 6 that forms an alternating electric field around the object 68b.

  Note that the growing apparatus according to the eighth embodiment may not include the growing unit 68. In such a case, the growing device provided only with the electrode unit 2 and the voltage applying device 3 is used for growing the growing object 68b in combination with the growing unit corresponding to the growing unit 68.

  The electrode unit 2 and the voltage application device 3 included in the growing device according to the eighth embodiment can be the same as the electrode unit 2 and the voltage application device 3 included in the freshness maintaining device according to the first embodiment. The details are omitted here.

  The growing apparatus according to the eighth embodiment forms an alternating electric field around the growing object 68b by discharging static electricity from the electrode unit 2 to the surroundings of the growing object 68b, and uses the formed alternating electric field as the growing object. The object to be grown 68b is grown while being applied to 68b. At this time, due to the effect of the AC electric field, water molecules in the growing object 68b can be irradiated with electromagnetic waves having a specific wavelength, so that the cells in the growing object 68b are activated and the vitality of the growing object 68b is increased. While being activated, it is possible to promote the growth of the object 68b.

  Further, the growing device of the eighth embodiment includes a normal growing unit 68, the electrode unit 2, and the voltage applying device 3. Further, as described above, the growth of the object to be grown 68b can be promoted by the effect of the AC electric field. Therefore, according to the growing apparatus of the eighth embodiment, the introduction cost and the operating cost of the growing apparatus can be reduced, and the object to be grown 68b is made efficient by the effect of the AC electric field formed by the space potential generating apparatus 6. I can train well.

  Moreover, in the growing apparatus of this Embodiment 8, the voltage application apparatus 3 has the voltage adjustment part 41 (refer FIG. 3) similarly to the freshness holding apparatus of Embodiment 1. FIG. Thereby, the strength of the AC electric field formed by the space potential generating device 6 around the object to be grown 68b is changed to the type, quantity or packaging status of the object to be grown 68b, or the temperature or humidity around the object to be grown 68b. The optimum strength can be easily adjusted and set accordingly. Therefore, it is possible to further improve the effect of the AC electric field exerted on the growing process by the growing device or to control the target space while reducing the introduction cost and the operating cost of the growing device.

<Effect of AC electric field on breeding process>
Next, the effect of the alternating electric field on the growing process by the growing apparatus according to the eighth embodiment will be described.

  First, a growing apparatus that does not have a space potential generator is referred to as Comparative Example 13, and a growing apparatus according to the eighth embodiment that is a growing apparatus that includes the space potential generator 6 is referred to as Example 13. In each of the growing apparatuses of Comparative Example 13 and Example 13, a test was conducted to compare the turf growing speed until seeds were sown and then germinated and extended about 10 cm above the medium.

  The accommodating portion 68a of the growing portion 68 provided in each of the growing devices of Comparative Example 13 and Example 13 had a shape of 4 m long × 3 m wide × 2.4 m high. A light emitting diode (LED) was used as the irradiation unit 68d. The distance from the culture medium accommodated in each of the pot parts 68c accommodated in the accommodating part 68a to the irradiation part 68d was 20 cm. The irradiation unit 68d continuously irradiated light for 24 hours. Moreover, in any of Comparative Example 13 and Example 13, water was supplied by the watering method under the same conditions.

  Moreover, the electrode part 2 provided in the growing apparatus of Example 13 was formed of an electrode plate having a shape of 5 cm wide × 10 cm long × 1 mm thick. Moreover, the voltage applied to the electrode part 2 was set to 3000V.

  As a result, no difference was observed between Comparative Example 13 and Example 13 with respect to the grass growth speed from seed sowing to germination. In addition, no difference was observed between Comparative Example 13 and Example 13 in terms of grass growth speed from germination until the turf grew about 10 cm above the culture medium. Moreover, when a lawn was pruned when it extended about 3 cm above the culture medium for a part, and then the pruned lawn was grown, no difference was observed between Comparative Example 13 and Example 13. .

  On the other hand, turf grown by each of the growing apparatuses of Comparative Example 13 and Example 13 was extracted, and the culture soil was washed and removed with water to expose the roots, and a test for comparing the appearance was performed. As a result, in Example 13, the roots were strongly intertwined with the culture soil before washing, compared to Comparative Example 13, and even after the roots were exposed, the roots and roots were strongly intertwined. Was thick and rich in the volume of the whole root.

  Next, a growth apparatus that does not have the space potential generation device is referred to as Comparative Example 14, and a growth apparatus according to the eighth embodiment that is a growth apparatus having the space potential generation device 6 is referred to as Example 14. In each of the growing apparatus of Comparative Example 14 and Example 14, after growing mizuna and vitamin vegetable leafy vegetables, they were eaten and tested for sensory evaluation and comparison of taste.

  The accommodating portion 68a of the growing portion 68 provided in each of the growing apparatuses of Comparative Example 14 and Example 14 had a shape of 4 m long × 3 m wide × 2.4 m high. A light emitting diode was used as the irradiation unit 68d. The distance from the culture medium accommodated in each of the pot parts 68c accommodated in the accommodating part 68a to the irradiation part 68d was 20 cm. The irradiation unit 68d continuously irradiated light for 24 hours. Moreover, in any of Comparative Example 14 and Example 14, water was supplied by the watering method under the same conditions.

  Moreover, the electrode part 2 provided in the growing apparatus of Example 14 was formed of an electrode plate having a shape of 5 cm wide × 10 cm long × 1 mm thick. Moreover, the voltage applied to the electrode part 2 was set to 3000 V, and the voltages 20 cm, 15 cm, 10 cm, 5 cm, and 2 cm above the medium were set to 2800 V, 500 V, 120 V, 60 V, and 10 V, respectively.

  As a result, with respect to mizuna, the evaluation in Comparative Example 14 was “light white and tastes a lot of moisture.” However, in Example 14, the evaluation was “The taste of mizuna is firm.” was gotten. In addition, with regard to vitamin vegetables, in Comparative Example 14, an evaluation that “it tastes fresh” was obtained, and in Example 14, an evaluation that “the vegetable has sweet taste and greenness” was obtained. .

  Such a result means that in Example 13 and Example 14, the growth rate of the object to be grown 68b was improved as compared with Comparative Example 13 and Comparative Example 14. Therefore, according to the growing apparatus of the eighth embodiment, the to-be-cultivated object 68b can be efficiently grown by the effect of the AC electric field formed by the space potential generator 6, and the AC electric field exerted on the growing process by the growing apparatus can be increased. It became clear that the effect was improved.

<Effect of voltage regulator>
According to the voltage adjusting unit 41 in the growing apparatus of the eighth embodiment, the voltage applied to the electrode unit 2 can be adjusted according to the number of objects and the size of the room. That is, it is possible to adjust the size of the space that is the range in which the AC electric field affects.

(Embodiment 9)
Applying the space potential generating device of the first embodiment to an air conditioner (air conditioner, air conditioner) and an air cleaner to realize the air conditioner of the ninth embodiment and the air cleaner of the modification of the ninth embodiment. Can do.

  FIG. 26 is a perspective view schematically showing an example of the air conditioner of the ninth embodiment. As shown in FIG. 26, the air conditioner of the ninth embodiment includes an air conditioner 69 serving as an air conditioner main body, an electrode unit 2, and a voltage applying device 3. Although not shown, the air cleaner according to the modification of the ninth embodiment includes an air cleaner body (not shown), an electrode 2 (see FIG. 1), and a voltage applying device 3 (see FIG. 1). Reference).

  The air conditioner of the ninth embodiment forms an alternating electric field in the conditioned space 69b in which the air conditioning unit 69 performs air conditioning, and adjusts the temperature of air in the conditioned space 69b in which the alternating electric field is formed. Specifically, by discharging static electricity into the conditioned space 69b from the electrode portion 2 provided in the conditioned space 69b, an alternating electric field is formed in the conditioned space 69b, and the formed alternating electric field is transferred to the conditioned space 69b. The temperature of the air in the conditioned space 69b is adjusted while being applied to the living body or the living body disposed in the conditioned space 69b, for example.

  The air-conditioning part 69 is attached to the wall part 69c, and the wall part 69c demarcates the air-conditioning space 69b. Although the electrode part 2 should just be provided in the air-conditioning space 69b, it is stored in the back side of the air-conditioning part 69 rather than either the front panel 69d or the blower outlet 69e of the air-conditioning part 69 as an air-conditioner main-body part. At this time, the voltage application device 3 may be stored inside the air conditioning unit 69. In such a case, since the electrode part 2 and the voltage application apparatus 3 can be integrated and integrated in the air-conditioning part 69, an apparatus cost can be reduced and the freedom degree of selection of an installation place can be improved. it can.

  Regarding the electrode unit 2 and the voltage application device 3 provided in the air conditioner of the ninth embodiment, that is, the space potential generator 6, the electrode unit 2 and the voltage application device 3 provided in the freshness maintaining device of the first embodiment. That is, it can be the same as that of the space potential generator 6, and the details thereof will be omitted.

  Moreover, the air cleaner of this modification forms an alternating current electric field in the clean space which cleans air, and cleans the air in the clean space in which the alternating current electric field is formed. Specifically, by discharging static electricity from the electrode unit 2 into the clean space, an AC electric field is formed in the clean space, and the formed AC electric field is arranged in the air in the clean space or in the clean space. For example, the air in the clean space is cleaned while being applied to the living body.

  Thereby, since the electromagnetic wave of a specific wavelength can be irradiated to the water molecule in the biological body arrange | positioned inside the air-conditioned space or the clean space, the cell in a biological body can be activated. In addition, when the living body is progressively deteriorated, the living body is supplemented with electrons that are reduced by oxidation, thereby preventing the living body from being oxidized and suppressing the activity of bacteria. In addition, by replacing the electrode unit 2 and the voltage application device 3 shown in FIG. 26 in the air cleaner main body instead of the air conditioning unit 69, the space potential generator included in the air conditioning device of Embodiment 9 is It can be applied to a modified air cleaner.

  That is, according to the air conditioner of the ninth embodiment having the space potential generator and the air cleaner of the present modification, for example, the freshness maintaining effect and the anti-aging effect of the living body disposed in the air-conditioned space or the clean space In addition, the deodorizing effect inside the air-conditioned space or clean space lasts for a long time.

(Embodiment 10)
The space potential generator of Embodiment 1 can be applied to a rice cooker to realize the rice cooker of Embodiment 10. In such a case, the rice cooker of Embodiment 10 includes a rice cooker body (not shown), an electrode 2 (see FIG. 1), and a voltage application device 3 (see FIG. 1). .

  In the rice cooker according to the tenth embodiment, an AC electric field is formed in the rice cooker portion (not shown) of the rice cooker body, and rice is cooked in the rice cooker portion where the AC electric field is formed. Specifically, by discharging static electricity from the electrode unit 2 into the rice cooker unit, an AC electric field is formed in the rice cooker unit, and rice cooking while applying the formed AC electric field to the rice arranged in the rice cooker unit. I do.

  Thereby, since the electromagnetic wave of a specific wavelength can be irradiated to the water molecule in rice, the cell in rice can be activated. Moreover, when the deterioration of rice progresses, it compensates for electrons that are oxidized and decreased, thereby preventing the oxidation of rice and suppressing the activity of bacteria. That is, according to the rice cooker of this Embodiment 10 which has a space potential generator, the rice arrange | positioned in the rice cooker part can be cooked plumply and deliciously.

  Although the invention made by the present inventor has been specifically described based on the embodiment, the invention is not limited to the embodiment and can be variously modified without departing from the scope of the invention. Needless to say.

  In the scope of the idea of the present invention, those skilled in the art can conceive various changes and modifications, and it is understood that these changes and modifications also belong to the scope of the present invention.

  For example, those in which the person skilled in the art appropriately added, deleted, or changed the design of the above-described embodiments, or those in which the process was added, omitted, or changed the conditions are also included in the present invention. As long as the gist is provided, it is included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Electrode part 2a Sheet-like electrode 3 Voltage application apparatus 4 Fresh goods 5 Freshness maintenance space 6 Spatial potential generator 11 Partition plate 13 Chilled room 14 Refrigerated room 15 Vegetable room 21 Main surface 22 Plate-like part 23 Opening part 24 Feed line 31 Transformer 32 Feedback Control Circuit 33 Output Control Unit 34 Output Terminal 35 Primary Coils 35a to 35c, 36a, 36b Terminal 36 Secondary Coil 37 AC Input Outlet 38 Breaker 39 Switch Element 41 Voltage Adjusting Unit 42 Resistive Element 43 Switch Element 44 Surge Absorber 51 Prefabricated refrigerator 51a, 53a, 58 Ceiling 52 Refrigerated vehicle 52a Cooler 52b Cold air outlet 53 Car-mounted refrigerator 54 Store 55, 55a-55d Food display shelf 56, 56a, 56b Support member 56c Fixing part 57 Floor 61 Oil tank 61a Oil 61b Foodstuff 62, 63 Water tank 62a, 3a Water 63b Aquatic organisms 64 Room temperature storage 64a Stored items 64b Storage spaces 64c, 65c, 66c, 67c Shelf plates 64d, 66d Ceiling 64e Winding unit 64f Screen 64g Remote controller 65 Dryers 65a, 66a Items to be dried 65b, 66b Drying space 66 Drying room 67 Refrigerator 67a Aged object 67b Aged space 68 Growing part 68a Housing part 68b Growing part 68c Bowl part 68d Irradiation part 69 Air conditioning part 69b Air conditioning space 69c Wall part 69d Front panel 69e Outlet VL1 to VL3 AC voltage

Claims (37)

In a freshness holding apparatus for forming an AC electric field in a freshness holding space for holding the freshness of a fresh product, and holding the freshness of the fresh product arranged in the freshness holding space in which the AC electric field is formed ,
A demarcating portion for demarcating the freshness holding space;
An electrode part provided in the freshness holding space defined by the defining part;
A voltage applying device for applying a first AC voltage to the electrode unit;
With
The voltage application device is:
A transformer including a primary coil to which a second AC voltage is applied by an AC power source, and a secondary coil magnetically coupled to the primary coil;
A feedback control circuit for returning one terminal of the secondary coil to one terminal of the primary coil to adjust the voltage at the secondary coil;
An output control unit connected to the other terminal of the secondary coil to apply low-frequency vibration to the output of the secondary coil;
The voltage value of the third AC voltage input from the AC power supply is switched to a plurality of different voltage values, and the third AC voltage whose voltage value is switched is applied to the primary coil as the second AC voltage. A voltage adjusting unit for adjusting a voltage value of the first AC voltage;
Have
The said electrode part is a freshness holding | maintenance apparatus connected to the other terminal of the said secondary coil via the said output control part. The freshness holding device according to claim 1,
The voltage regulator is
A resistance element provided between one terminal of the primary coil or the first terminal which is the other terminal of the primary coil and the AC power supply;
A switch element for switching whether the first terminal is connected to the AC power supply via the resistance element or the first terminal is connected to the AC power supply without going through the resistance element;
Including a freshness maintaining device. In the freshness holding device according to claim 1 or 2,
By discharging static electricity from the electrode part into the freshness holding space, the AC electric field is formed in the freshness holding space, and the freshness of the fresh product is increased while applying the formed AC electric field to the fresh product. A freshness holding device for holding. The freshness keeping device according to any one of claims 1 to 3,
The said voltage application apparatus is a freshness holding apparatus which applies the said 1st alternating voltage of a frequency of 20-100 Hz to the said electrode part. The freshness holding device according to any one of claims 1 to 4,
A freshness maintaining device without a ground electrode. The freshness holding device according to any one of claims 1 to 5,
The freshness maintaining device, wherein the current flowing through the secondary coil is 0.002 to 0.2A. The freshness holding device according to any one of claims 1 to 6,
The electrode portion is a first electrode;
The voltage application device is a freshness holding device that is not electrically connected to any electrode other than the first electrode. In the freshness holding device according to any one of claims 1 to 7,
A freshness holding device in which a photocatalyst or an oxygen catalyst is applied to the surface of the electrode part. In the freshness keeping device according to any one of claims 1 to 8,
The demarcating part is a refrigerator;
The freshness holding space is formed in the refrigerator,
The electrode unit is a freshness holding device provided in the refrigerator. An oil tank in which oil is stored;
An electrode provided in the oil tank;
A voltage applying device for forming an AC electric field in the oil tank by applying a first AC voltage to the electrode portion;
With
The voltage application device is:
A transformer including a primary coil to which a second AC voltage is applied by an AC power source, and a secondary coil magnetically coupled to the primary coil;
A feedback control circuit for returning one terminal of the secondary coil to one terminal of the primary coil to adjust the voltage at the secondary coil;
An output control unit connected to the other terminal of the secondary coil to apply low-frequency vibration to the output of the secondary coil;
The voltage value of the third AC voltage input from the AC power supply is switched to a plurality of different voltage values, and the third AC voltage whose voltage value is switched is applied to the primary coil as the second AC voltage. A voltage adjusting unit for adjusting a voltage value of the first AC voltage;
Have
The said electrode part is a fryer connected to the other terminal of the said secondary coil via the said output control part. The flyer of claim 10,
The voltage regulator is
A resistance element provided between one terminal of the primary coil or the first terminal which is the other terminal of the primary coil and the AC power supply;
A switch element for switching whether the first terminal is connected to the AC power supply via the resistance element or the first terminal is connected to the AC power supply without going through the resistance element;
Including the flyer. The flyer according to claim 10 or 11,
The fryer which discharge | releases static electricity in the said oil tank from the said electrode part, forms the said alternating current electric field in the said oil tank, and applies the formed said alternating current electric field to the oil stored in the said oil tank. The flyer according to any one of claims 10 to 12,
The voltage application device is a flyer that applies the first AC voltage having a frequency of 20 to 100 Hz to the electrode portion. The flyer according to any one of claims 10 to 13,
A flyer without a ground electrode. The flyer according to any one of claims 10 to 14,
The current that flows through the secondary coil is 0.002 to 0.2 A. The flyer according to any one of claims 10 to 15,
The electrode portion is a first electrode;
The voltage application device is a fryer that is not electrically connected to any electrode other than the first electrode. The flyer according to any one of claims 10 to 16,
A fryer in which a photocatalyst or an oxygen catalyst is applied to the surface of the electrode part. In the space potential generator that forms an alternating electric field,
An electrode portion to which a first AC voltage is applied;
A voltage applying device that forms the AC electric field around the electrode portion by applying the first AC voltage to the electrode portion;
With
The voltage application device is:
A transformer including a primary coil to which a second AC voltage is applied by an AC power source, and a secondary coil magnetically coupled to the primary coil;
A feedback control circuit for returning one terminal of the secondary coil to one terminal of the primary coil to adjust the voltage at the secondary coil;
An output control unit connected to the other terminal of the secondary coil to apply low-frequency vibration to the output of the secondary coil;
The voltage value of the third AC voltage input from the AC power supply is switched to a plurality of different voltage values, and the third AC voltage whose voltage value is switched is applied to the primary coil as the second AC voltage. A voltage adjusting unit for adjusting a voltage value of the first AC voltage;
Have
The space potential generating device, wherein the electrode unit is connected to the other terminal of the secondary coil via the output control unit. The space potential generator according to claim 18,
The voltage regulator is
A resistance element provided between one terminal of the primary coil or the first terminal which is the other terminal of the primary coil and the AC power supply;
A switch element for switching whether the first terminal is connected to the AC power supply via the resistance element or the first terminal is connected to the AC power supply without going through the resistance element;
A space potential generator. The space potential generator according to claim 18 or 19,
A space potential generation device that forms the AC electric field around the electrode unit by discharging static electricity from the electrode unit to the periphery of the electrode unit. The space potential generator according to any one of claims 18 to 20,
The voltage application device is a space potential generation device that applies the first AC voltage having a frequency of 20 to 100 Hz to the electrode portion. The space potential generator according to any one of claims 18 to 21,
A space potential generator that does not include a ground electrode. The space potential generator according to any one of claims 18 to 22,
The space potential generator according to claim 1, wherein a current flowing through the secondary coil is 0.002 to 0.2A. The space potential generator according to any one of claims 18 to 23,
The electrode portion is a first electrode;
The voltage application device is a space potential generation device that is not electrically connected to any electrode other than the first electrode. The space potential generator according to any one of claims 18 to 24,
A space potential generator, wherein a photocatalyst or an oxygen catalyst is applied to the surface of the electrode part. A space potential generator according to any one of claims 18 to 25;
A water tank in which water is stored;
Have
The electrode part is provided in the water tank,
A water activation device that forms the AC electric field in the water tank and activates water stored in the water tank in which the AC electric field is formed. The water activation device according to claim 26.
A water activation device that forms the AC electric field in the water tank by discharging static electricity from the electrode portion into the water tank, and activates the water while applying the formed AC electric field to the water. . A space potential generator according to any one of claims 18 to 25;
A water tank in which water is stored;
Have
The electrode part is provided in the water tank,
An aquaculture device that forms the alternating electric field in the aquarium and cultivates aquatic organisms in the aquarium in which the alternating electric field is formed. The aquaculture device according to claim 28,
An aquaculture apparatus that forms the alternating electric field in the water tank by discharging static electricity from the electrode portion into the water tank, and cultivates the aquatic organism while applying the formed alternating electric field to the aquatic organism. A space potential generator according to any one of claims 18 to 25;
A drying cabinet for drying the material to be dried;
Have
The electrode part is provided in the drying chamber,
A drying apparatus that forms the AC electric field in the drying chamber and dries the object to be dried in the drying chamber in which the AC electric field is formed. The drying device according to claim 30,
By discharging static electricity from the electrode section into the drying chamber, the AC electric field is formed in the drying chamber, and the object to be dried is dried while applying the formed AC electric field to the object to be dried. , Drying equipment. A space potential generator according to any one of claims 18 to 25,
The electrode part is provided in an aging space for aging an object to be aged,
An aging apparatus for forming the AC electric field in the aging space and aging the material to be aged in the aging space in which the AC electric field is formed. The aging apparatus according to claim 32,
By discharging static electricity from the electrode part into the aging space, the AC electric field is formed in the aging space, and the aging product is ripened while applying the formed AC electric field to the aging product. Aging equipment. A space potential generator according to any one of claims 18 to 25,
The electrode part is provided around the object to be grown,
A growing apparatus that forms the alternating electric field around the object to be grown and grows the growing object on which the alternating electric field is formed. The growing apparatus according to claim 34,
By discharging static electricity from the electrode part to the periphery of the object to be grown, the AC electric field is formed around the object to be grown, and the AC electric field thus formed is applied to the object to be grown while being grown. A device for growing things. A space potential generator according to any one of claims 18 to 25,
The electrode part is provided in an air-conditioned space for air conditioning,
An air conditioner that forms the AC electric field in the air conditioned space and adjusts the temperature of air in the air conditioned space in which the AC electric field is formed. The air conditioner according to claim 36,
By discharging static electricity from the electrode portion into the conditioned space, the alternating electric field is formed in the conditioned space, and the formed alternating electric field is applied to the air in the conditioned space. An air conditioner that regulates the air temperature.

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