JP3218537U - Electric field forming panel used for commercial refrigerators and commercial refrigerators - Google Patents

Abstract

An electric field forming panel for use in a commercial refrigerator capable of adjusting the environment of a storage room of the commercial refrigerator so as to cause overcooling, and a commercial refrigerator to which the electric field forming panel is attached. An electric field forming panel 1 used for a commercial refrigerator 10 of the present invention has flexibility, a mesh-like planar electrode, a first panel material covering one side of the planar electrode, and the planar electrode. The panel main body which has the 2nd panel material 9 which covers the other side, and the insulating material arrange | positioned between a 1st panel material and a plane electrode are provided. The electric field forming panel 1 is applied with a voltage of 1 kV to 5 kV having a sine waveform of a frequency of 48 Hz to 62 Hz to the planar electrode. An electric field space having an electric field strength of 3 kV / m to 15 kV / m is formed, and the environment of the electric field space is adjusted to a state where supercooling occurs in which the water becomes a non-freezing state at a temperature below the freezing point. [Selection] Figure 3

Description

  The present invention relates to an electric field forming panel used in a commercial refrigerator capable of adjusting the internal space of the commercial refrigerator to a state in which overcooling occurs, and a commercial refrigerator provided with the electric field forming panel used in the commercial refrigerator It is about.

  Conventionally, it causes supercooling phenomenon using vibration of water molecule based on electrostatic field, keeps moisture contained in food in non-frozen state in environment below freezing point, and prevents freshness deterioration of food, etc. Refrigerators and electrostatic field processing devices that are designed to achieve this have been proposed (for example, Patent Documents 1 to 4).

In these documents, an independent section is provided in a refrigerator, etc., and a configuration in which an electric field forming means for causing a supercooling phenomenon is built in this section, a configuration in which an electric field forming means is provided by modifying the refrigerator, etc. The technique which concerns on the refrigerator etc. which raise | generate supercooling is disclosed.

JP 2001-86967 A JP 2000-297976 A JP 2005-156042 A JP 2008-215716 A

However, as proposed in Patent Documents 1 to 4, in order to cause a supercooling phenomenon in the commercial refrigerator, once the electric field forming means is built in or modified, it is used for normal commercial use. Returning to the refrigerator is structurally difficult. And remodeling the inside of a commercial refrigerator has the problem that it takes time and cost.
In addition, if an electric field space is formed in the storage room of a commercial refrigerator, sufficient insulation measures must be taken to avoid leakage due to condensation and discharge due to application of overvoltage. However, there is a problem that obtaining a desired accommodation volume for such insulation measures cannot be solved unless the refrigerator or the like is enlarged. As an insulation measure, for example, it is conceivable to place insulating insulators in contact with the upper and lower surfaces of the storage chamber. However, if the insulators are arranged in contact with the upper and lower surfaces of the storage room, the storage capacity of the storage room is reduced from the original 70% to 80%.
Furthermore, in the inventions proposed in Patent Documents 1 to 4, electric shock may occur when a body (for example, a hand or an arm) contacts the electrode. It is necessary to take other measures to avoid this.

  Therefore, the present invention is able to arrange the environment of the storage room of the commercial refrigerator so that overcooling occurs, and the electric field forming panel used for the commercial refrigerator that can be easily installed in the storage room, and this It aims at providing the commercial refrigerator which attached the electric field formation panel.

  An electric field forming panel used for a commercial refrigerator according to the present invention has flexibility, a mesh-shaped electrode, a first surface material covering one side of the electrode, and a first surface covering the other side of the electrode. A panel body having two surface layer materials, and an insulating material disposed between the first surface layer material and the electrode, or between the second surface layer material and the electrode, and the electrode has a frequency of 48 Hz to 62 Hz. By applying a voltage of 1 kV to 5 kV in the waveform, an electric field space having an electric field strength of 0.3 kV / m to 15 kV / m is formed within 3 m from the surface of the electrode where the insulating material is not disposed. In addition, the electric field space environment is adjusted to a state where supercooling occurs in which the water becomes non-frozen at a temperature below the freezing point.

  The electric field forming panel used in the commercial refrigerator according to the present invention is made of a stainless steel net, and has a rectangular planar electrode formed in a mesh shape of 30 to 50 mesh having flexibility, against water droplets and condensation. It consists of a flame-retardant tent fabric that does not react, covers one side of the flat plate electrode, is laminated by thermocompression bonding, and comprises a panel body with a surface layer material that has a thickness in the electric field forming direction, and a flexible high-density polyurethane The surface layer material between the surface layer material and the electrode and disposed on the opposite side of the electric field forming direction, and the surface of the surface layer material on the side where the insulation material of the panel body is disposed stores the stored items It is detachably attached by an insulating rivet so as to be on the wall side of the storage room of a commercial refrigerator equipped with a room, and the size of the planar electrode is 1 m × 2 m at the maximum, By applying a voltage of 1 kV to 5 kV with a sinusoidal waveform of several 48 Hz to 62 Hz, an electric field strength of 0.3 kV / m to 15 kV / m can be obtained within 3 m from the surface on the side where the insulating material of the electrode is not disposed. An electric field space is formed, and the internal environment of the storage room is adjusted to a state where supercooling occurs in which the water becomes a non-freezing state at a temperature below the freezing point.

  A commercial refrigerator according to the present invention includes a refrigerator main body and a storage chamber having a door portion on the front surface of the refrigerator main body. It is provided in at least one of them.

The electric field forming panel used in the commercial refrigerator according to the present invention applies the voltage to the planar electrode, and the electric field strength of the electric field space formed within 3 m from the surface of the electrode where the insulating material is not disposed. Is adjusted from 0.3 kV / m to 15 kV / m. The electric field space is adjusted to a state where supercooling occurs in which the water becomes a non-frozen state at −5 ° C. to 0 ° C. which is a refrigerated environment of a general commercial refrigerator.
Then, the water is adjusted to a state where the water is unfrozen and overcooled, and the freshness of foods such as meat, fish, vegetables, fruits and beverages stored in the storage room is prevented from deteriorating or rotting. it can.

Moreover, since the electric field forming panel used for the commercial refrigerator according to the invention has flexibility, the electric field forming panel 1 can be easily attached at a desired position even in a place where it is difficult to attach the electric field forming panel 1 in the storage room. it can.
In addition, the electric field forming panel used for the commercial refrigerator according to the invention according to the present invention does not require special power supply facilities and electric devices, and can be moved by connecting to a commercial power source, and is special. There is no need to take insulation measures. Therefore, without requiring special handling to the user, the user can easily use the electric field forming panel used for the commercial refrigerator and the commercial refrigerator provided with the electric field forming panel used for the commercial refrigerator. Can be used.

It is a front view of the electric field formation panel used for the commercial refrigerator which concerns on this invention. It is sectional drawing of the electric field formation panel used for the commercial refrigerator which concerns on this invention. (A-A sectional view of FIG. 1) It is a perspective view of the commercial refrigerator which concerns on this invention. It is upper part sectional drawing of the commercial refrigerator which concerns on this invention.

  The electric field forming panel used for the commercial refrigerator according to the present embodiment and the commercial refrigerator provided with the electric field forming panel used for the commercial refrigerator will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, an electric field forming panel 1 (hereinafter referred to as an electric field forming panel 1) used for a commercial refrigerator 10 according to this embodiment includes a rectangular panel main body 2 and the panel main body. 2 is provided with a planar electrode 3 provided inside 2, a protective sheet 4 as a surface material covering one side of the planar electrode 3, and an insulating material 5 provided between the planar electrode 3 and the panel body 2. Yes.

[Commercial refrigerator 10]
The electric field forming panel 1 is attached to a general commercial refrigerator 10.
As shown in FIG. 3, the commercial refrigerator 10 is provided in the refrigerator main body 14, the storage chamber 12 provided above and below the refrigerator main body 14, and the front opening of the storage chamber 12. And a pair of left and right door portions 11. Inside the storage chamber 2, shelves are provided in multiple stages, and food is displayed on the shelves and cooled (frozen). The door portion 11 is provided with a handle 13, and the electric field forming panel 1 is attached to the inside of the door portion 11.

[Panel body 2]
The panel main body 2 is fitted into the first panel material 7 as the first surface layer material having the insertion portion 6 formed by bending the peripheral edge, and the insertion portion 6, and the first panel material 7 by the insulating bonding member 8. And a second panel material 9 as a second surface layer material to be joined (FIG. 2). The first panel material 7 constitutes the back surface of the electric field forming panel 1, and the second panel material 9 constitutes the front surface of the electric field forming panel 1.
And the 1st panel material 7 and the 2nd panel material 9 penetrate the insertion part 6, and are joined by the some joining member 8 provided in the predetermined space | interval. A through-hole 8A is formed in the joining member 8, and an insulating rivet material is passed through the through-hole 8A.

[Plane electrode 3]
For the planar electrode 3, a mesh-like conductive metal material is used. The planar electrode 3 of the present embodiment uses a stainless steel net having a rectangular mesh number of 40 mesh.
The shape of the planar electrode 3 is not limited to a rectangular shape, and can be, for example, a round shape, a round donut shape, or a rectangular donut shape. The number of meshes of the planar electrode 3 is preferably in the range of 30 mesh to 50 mesh.
Since the planar electrode 3 has a mesh shape, it has flexibility. The size of the planar electrode 3 is 1 m × 2 m at the maximum, and can be appropriately changed according to the area of the location where the electric field forming panel 1 is attached.

[Protective sheet 4]
The protective sheet 4 is provided between the planar electrode 3 and the second panel material 9.
The protective sheet 4 has an end inserted into the insertion portion 6 and is fixed to the first panel material 7 by a joining member 8 together with the second panel material 9. When the planar electrode 3 is used, the protective sheet 4 is formed by being laminated by thermocompression bonding or the like in order to reliably avoid discharge and electric leakage and to reduce electric shock caused by contact. The direction in which the protective sheet 4 is laminated is preferably the direction in which the electric field space is formed by the planar electrode 3, that is, the electric field forming direction X.
In consideration of the temperature environment of the refrigerator 10, the protective sheet 4 can be made of a material that does not react to water droplets or condensation, for example, cloth or vinyl. A flame-retardant tent fabric is used for the protective sheet 4 of the present embodiment.

[Insulating material 5]
The insulating material 5 is formed of an insulating material, for example, a synthetic resin, and has flexibility.
The insulating material 5 of this embodiment is rectangular and is made of high-density polyurethane.
The insulating material 5 is provided between the first panel material 7 and the planar electrode 3. The insulating material 5 is provided in contact with the planar electrode 3 on the side opposite to the electric field forming direction X.
The insulating material 5 is designed to have the same size corresponding to the planar electrode 3. The size of the insulating material 5 can be larger or smaller than that of the planar electrode 3, but is preferably the same size.

Next, the electric field space formed by the electric field forming panel 1 will be described.
The electric field forming panel 1 of the present invention forms an electric field space using a commercial power frequency without using special power supply equipment and power supply devices. The range of the electric field space in which the supercooled state in which water becomes unfrozen at temperatures below the freezing point can be reliably obtained is determined based on the following electrical theory.

  Assuming that the first panel member 7 and the second panel member 9 of the electric field forming panel 1 are planar electrodes facing each other, the capacitance C (F) between the planar electrodes (electric field forming panel 1) is expressed by the following [Equation 1 ] Can be expressed as follows.

C = ε × S / d [Formula 1]
C: Capacitance (F)
ε: Dielectric constant of electric field space (≈8.854 × 10 ⁻¹² F / m)
S: Panel area (m ² )
d: Distance between facing electrodes (case or case) (m)

  The electric charge Q (C) stored in the electric field forming panel 1 can be expressed as [Equation 2] below.

Q = C × V [Formula 2]
C: Panel capacitance (F)
V: Applied voltage (V)
(However, in alternating current, V changes with time.)

  The electric field strength (electric field amount) E (V / m) at a position away from the electrification Q (C) by a distance r (m) can be expressed as [Equation 3] below.

E = Q / (4 × π × ε × r ² ) [Formula 3]
ε: Dielectric constant of electric field space (≈8.854 × 10 ⁻¹² F / m)
r: Distance (m)

  An alternating current I (A) flowing through a capacitor (electric field space) having a capacitance C can be expressed as [Equation 4] below.

I = 2 × π × f × C × V [Formula 4]
I: AC current (A)
f: AC voltage frequency (Hz)
V: Applied voltage (V)

Based on the electrical theory described above, when a voltage of 1 kV to 5 kV is applied to the planar electrode 3 of the electric field forming panel 1 with a sine wave with a frequency of 48 Hz to 62 Hz, the electric field forming direction on the side where the insulating material 5 is not provided. X and an electric field space having a predetermined electric field strength is formed within 3 m from the surface of the planar electrode 3.
When the electric field strength of the formed electric field space is 0.3 kV / m to 15 kV / m, the electric field space is -5 ° C. to 0 ° C. which is a refrigerated environment of a general commercial refrigerator. It is adjusted to a state in which overcooling occurs.
In the electric field panel 1 of the present embodiment, it is necessary to control the magnitude of the AC applied voltage V (V) and the electric charge Q (C) stored in the electric field forming panel 1, and these controls are publicly known. Can be used.

  The electric field forming panel 1 is attached so that the first panel material 7 is on the door 11 side of the commercial refrigerator 10. The electric field forming panel 1 is attached to the door portion 11 by passing a rivet through the through hole 8A of the joining member 8 and fastening it to the door portion 11.

Next, the effects of the electric field forming panel 1 and the commercial refrigerator 10 according to the present embodiment will be described.
When a voltage is applied to the planar electrode 3, the electric field forming panel 1 attached to the commercial refrigerator 10 adjusts the electric field strength of the electric field space from 0.3 kV / m to 15 kV / m. Then, the electric field space (inside the door-type storage room 12) is adjusted to a state in which supercooling occurs in which water becomes non-frozen in a refrigeration environment of a general commercial refrigerator at -5 ° C to 0 ° C. The
When the water is adjusted to a state where the water is not frozen, the freshness of food such as meat, fish, vegetables, fruits, and beverages stored in the door-type storage chamber 12 deteriorates or decays. To be prevented.
Therefore, by providing the electric field forming panel 1 according to the present embodiment inside the commercial refrigerator 10 and making the storage room in an environment of a predetermined condition by the electric field forming panel 1, it is possible to prevent the freshness deterioration and spoilage of food.

Moreover, since the 1st panel material 7, the 2nd panel material 9, the insulating material 5, and the plane electrode 3 all have a softness | flexibility, the electric field formation panel 1 itself of this embodiment has a softness | flexibility.
Therefore, in the door-type storage chamber 12 and the drawer-type storage chamber 14, even if it is difficult to attach the electric field forming panel 1, the electric field forming panel 1 is applied with a force, bent once, placed at a desired position, and the applied force is released. By doing so, it can return to the shape of the original electric field formation panel 1, and the electric field formation panel 1 can be attached to a desired position.

  Moreover, the electric field formation panel 1 of this embodiment can be moved by connecting to a commercial power supply, without requiring special power supply equipment and electric devices. Furthermore, there is no need for special insulation measures. Therefore, the user can easily use the electric field forming panel 1 and the commercial refrigerator 10 without requiring special handling from the user.

  The electric field forming panel 1 according to the present embodiment can be applied to a case where the electric field forming panel 1 cannot be provided inside the door portion 11 or to a commercial refrigerator including a storage room that does not have the door portion 11.

Although the present embodiment has been described above, the configuration described in the above embodiment can be selected or changed to another configuration as long as it does not depart from the gist of the present invention. .
For example, in the electric field forming panel 1 of the present embodiment, the first panel material 7 and the second panel material 9 are formed as separate bodies, but may be formed integrally. Moreover, the electric field formation panel 1 of this embodiment may remove the 2nd panel material 9, and may use the protective sheet 4 as a surface layer material.
The insulating material 5 may be provided between the planar electrode 3 and the second panel material 9 (or the protective sheet 4).

  Moreover, the position where the electric field forming panel 1 is provided is not limited to the door portion 11, and can be provided on the inner wall 15 of the storage chamber 12, for example. Furthermore, a plurality of electric field forming panels 1 can be provided. The size of the electric field forming panel 1 is a size suitable for a place to be attached, and the electric field strength of the electric field space formed inside the storage chamber 12 is from 0.3 kV / m to 15 kV / m. A voltage is applied to the planar electrode 3. If it does so, the inside of the storage room 12 will be adjusted to the state which the supercooling in which water will be in a non-freezing state will arise in -5 to 0 degreeC. Even in this case, by adjusting the electric field in the electric field space, it is possible to prevent the deterioration of the freshness and the decay of the food stored in the storage chamber 12.

1. Electric field forming panel (electric field forming panel) used for commercial refrigerators
2 Panel body 3 Planar electrode 4 Protective sheet (surface layer material)
5 Insulating material 6 Insertion part 7 First panel material (first surface layer material)
8 Joining member 8A Through-hole 9 Second panel material (second surface layer material)
DESCRIPTION OF SYMBOLS 10 Commercial refrigerator 11 Door part 12 Door type storage room 13 Handle 14 Refrigerator main body 15 Inner wall X Electric field formation direction

Claims (3)

An electrode having flexibility and formed in a mesh shape;
A panel body having a first surface material covering one side of the electrode and a second surface material covering the other side of the electrode;
An insulating material disposed between the first surface material and the electrode, between the second surface material and the electrode, and
A voltage of 1 kV to 5 kV is applied to the electrode with a sine waveform having a frequency of 48 Hz to 62 Hz, so that the surface of the electrode on the side where the insulating material is not disposed is within 3 m from 0.3 kV / m to 15 kV / forming an electric field space having an electric field strength of m,
The environment of the electric field space is adjusted to a state where supercooling occurs in which water becomes a non-freezing state at a temperature below the freezing point.
An electric field forming panel for use in commercial refrigerators. A rectangular planar electrode made of a stainless steel net and formed into a flexible mesh of 30 to 50 mesh;
It consists of a flame-retardant tent fabric that does not react to water droplets and condensation, covers one side of the flat plate electrode, and is laminated by thermocompression treatment, and a panel body provided with a surface layer material having a thickness in the electric field forming direction,
Made of high-density polyurethane having flexibility, comprising an insulating material disposed between the surface layer material and the electrode and on the opposite side to the electric field forming direction,
With the insulating rivet, the surface of the surface layer material on the side where the insulating material of the panel body is disposed is the wall surface side of the storage room of a commercial refrigerator provided with a storage room for storing stored items. Can be attached,
The planar electrode has a maximum size of 1 m × 2 m, and a voltage of 1 kV to 5 kV is applied to the planar electrode with a sine waveform having a frequency of 48 Hz to 62 Hz, so that the insulating material of the electrode is not disposed. Forming an electric field space having an electric field strength of 0.3 kV / m to 15 kV / m within 3 m from the surface on the side;
The internal environment of the storage room is adjusted to a state where supercooling occurs in which water becomes non-freezing at a temperature below the freezing point.
An electric field forming panel for use in commercial refrigerators. In a commercial refrigerator comprising a refrigerator body and a storage room having a door on the front of the refrigerator body,
The electric field forming panel used for the commercial refrigerator according to claim 1 and claim 2,
Provided on at least one of the inner wall of the door part and the inner wall of the storage room,
A commercial refrigerator characterized by that.

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