JP2507992Y2 - Oscillating electric field generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an oscillating electric field generator incorporated in a processing apparatus for processing an object by applying an oscillating electric field.

[Background of technology]

2. Description of the Related Art In recent years, techniques for achieving various purposes by treating an object by the action of an oscillating electric field have been receiving attention.

For example, in the field of food production, it is possible to prevent water, protein, etc. from spoiling, oxidizing, etc. by applying an oscillating electric field. In other words, the energy of the oscillating electric field is absorbed by water, proteins, etc., and the bonds and structures of water molecules and protein molecules are adjusted and strengthened, and the electrical imbalance of molecular bonds is corrected and proteins are protected. It is presumed that a structured water molecule is formed, and as a result, decay, oxidation, etc. are effectively prevented.

As an oscillating electric field generator for forming an oscillating electric field, the following device previously proposed by the present inventor is excellent.

(1) A circuit that includes a power supply unit, a high-frequency generation unit, a booster unit, and a conversion unit, and the conversion unit includes a parallel impedance composed of a resistor and a capacitor and a diode (hereinafter referred to as “L-shaped circuit”). (Also referred to as "."), An oscillating electric field generating device having a configuration in which a plurality of cascade-connected circuit units are cascade-connected and an output capacitor connected to a subsequent stage of the cascade-connected circuit unit (Japanese Patent Application No. 1-12260). reference).

(2) As a technique for improving the above (1), the capacitance of the capacitor that constitutes the parallel impedance in the above converter is
An oscillating electric field generator having a configuration specified to be 180 pF or more and less than 2000 pF (see Japanese Patent Application No. 1-73492).

[Problems to be solved by the device]

However, as a result of repeated experiments by the present inventor, even in the above-mentioned devices (1) and (2), the treatment effect by the oscillating electric field is still low, and therefore, the development of a device having a higher treatment effect is required. I arrived.

Therefore, the inventors of the present invention further repeated the experiment and conducted earnest research. As a result, by inserting a coil at a specific position in the devices of (1) and (2), the processing effect by the oscillating electric field is greatly improved. We found that and completed the present invention.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an oscillating electric field generator having a remarkably high processing effect by an oscillating electric field.

[Means for solving the problem]

In order to achieve the above object, an oscillating electric field generator according to the present invention is an oscillating electric field generator incorporated in a processing device that applies an oscillating electric field to an object to be processed, the power supply unit and the power supply unit. A high frequency generating section for converting the frequency of the high frequency into a high frequency, a boosting section for boosting the high frequency from the high frequency generating section, and a converting section for removing a high frequency by removing a direct current component from the output of the boosting section, The conversion unit includes a cascade connection circuit unit configured by cascade connection of a plurality of circuits each including a parallel impedance composed of a resistor and a capacitor and a diode, and an output capacitor connected to a subsequent stage of the cascade connection circuit unit, A first terminal connected to the output capacitor, and a second terminal branched and connected from the booster without passing through the parallel impedance, A coil is provided at any position in the circuit from one output side of the pressure section to the output capacitor except the resistance side of the parallel impedance and the section from the other output side of the booster section to the second terminal. Adopt the inserted configuration.

That is, in the present invention, by inserting a coil at a specific position, as will be understood from the description of the experimental example described later, compared to the devices (1) and (2) previously proposed by the present inventor. The processing effect of the oscillating electric field can be remarkably enhanced.

Although the reason why the treatment effect is enhanced in the present invention has not been sufficiently clarified, a subtle change occurs in the waveform of the oscillating electric field due to the insertion of the coil at a specific position, and this subtle change effectively acts on the treatment. It is considered to be a thing.

〔Example〕

The embodiment shown in FIG. 1 is an oscillating electric field generator incorporated in a processing device that applies an oscillating electric field to an object to be processed, and converts the frequency of the power source part 10 and the power source part 10 into a high frequency. It is provided with a high frequency generator 20, a booster 30 for boosting the high frequency from the high frequency generator 20, and a converter 40 for removing a high frequency by removing a DC component from the output of the booster 30. Reference numeral 40 denotes a cascade connection circuit section 42 constituted by a cascade connection of a plurality of L-shaped circuits 41, that is, a circuit having a parallel impedance Z composed of a resistor R and a capacitor C and a diode D as one set, and this cascade connection circuit section 42.
An output capacitor 43 connected to the subsequent stage of 42, a first terminal 45 connected to the output capacitor 43, and a second terminal 46 branched and connected from the booster 30 without passing through the parallel impedance Z. As shown by the thick line in FIG. 2, one output side 31 of the booster 30 is connected to the output capacitor.
Resistor R with parallel impedance Z in the circuit up to 43
The coil 50 is inserted at any position of the portion A excluding the side and the portion B extending from the other output side 32 of the booster 30 to the second terminal 46.

In the embodiment of FIG. 1, the coil 50 is inserted at a position between one output side 31 of the booster 30 and the parallel impedance Z forming the first stage L-shaped circuit 41. This coil 50
If the inductance is too large, the treatment effect will not increase, so from a practical point of view, for example, 9mH
The following is sufficient.

In the oscillating electric field generator of this embodiment, the power supply unit 10
The AC voltage having a commercial frequency of, for example, 100 V and 50 Hz or 60 Hz is converted into a high frequency voltage of 100 kHz and 100 kHz in the high frequency generation unit 20. This high frequency voltage
Then, the voltage is boosted by, for example, a high frequency high voltage of 100 kHz at 600V. The high-frequency high-voltage is a high-frequency high-voltage that is effective for processing by removing only the DC component in the conversion unit 40. That is, between the node 44 in front of the output capacitor 43 and the second terminal 46, for example, 600 V at 100 kHz
AC component of 1800V and DC component of 1800V are included. When this passes through the output capacitor 43, the DC component is removed, and between the first terminal 45 and the second terminal 46, 100V at 600V at 600V.
It becomes a high frequency high voltage effective for processing Hz. Due to this high frequency high voltage, an oscillating electric field having a high processing effect is formed in a processing chamber (not shown) accommodating the object to be processed, and the object to be processed is processed by the action of this oscillating electric field.

As the object to be processed by the oscillating electric field,
There is no particular limitation. It may be solid, liquid or gas, and representative examples thereof include fresh foods, thawed foods, processed foods, foods and drinks such as grains and potatoes, and environmental resources such as water, air and soil. Further, the processing temperature is not particularly limited. Depending on the object to be treated, room temperature treatment, refrigeration treatment, freezing treatment, thawing treatment, heat treatment and the like can be appropriately selected.

In the present invention, as will be understood from the description of the experimental example described later, the insertion position of the coil 50 may be any position as long as it is the portion A and the portion B. Specifically, In FIG. 2, the coil 50 may be inserted in any of the lines A1 to A12 included in the portion A and in any of the lines B1 and B2 included in the portion B. Further, the number of coils to be inserted is not limited to one, and a plurality of coils may be inserted at different positions.

However, when the coil 50 is inserted in the position from the resistance R side portion E1 to E5 of the parallel impedance Z, the L-shaped circuit is formed.
When the coil 50 is inserted at the positions E6 to E10 on the diode D side of 41, the node 44 before the output capacitor 43 from the branch point H to the second terminal 46 on the other output side 32 of the booster 30. Coil 50 at the position from E11 to E14
It is difficult to enhance the treatment effect in both cases when the is inserted.

[Experimental example]

Hereinafter, experimental examples and comparative experimental examples conducted for confirming the effects of the present invention will be described.

<Experimental Example 1> Experiment (a) An oscillating electric field generator P according to the present invention having the same configuration as that shown in FIG. 1 was produced by using circuit elements having the following constants.

Capacitor C… 680 pF Resistance R… 1 MΩ Output Capacitor 43… 4700 pF Coil 50… 3.38 mH Next, this oscillating electric field generator P and some frozen tuna M
Using the strip-shaped frozen tuna M1 collected and packed from the above, the frozen tuna M1 was thawed for 2 hours while being treated with the oscillating electric field by the oscillating electric field generator P at room temperature of 25.4 ± 0.3 ° C.

Then, the thawed tuna was stored in a refrigerator at a temperature of 5 ± 1.6 ° C., and the change with time of the K value of the thawed tuna was examined.

The K value is a measure of the freshness of seafood and is a value defined by the following equation.

K value (%) = (inosine + hypoxanthine) / (ATP + A
DP + AMP + IMP + inosine + hypoxanthine) x 100 ATP is adenosine triphosphate, ADP is adenosine diphosphate, AMP is adenosine monophosphate, and IMP is inosine acid.

The lower the K value, the higher the freshness, and fresh sashimi generally has a K value of about 20%, and it is said that if the K value exceeds 28%, it cannot be used for food.

Experiment (b) In Experiment (a), the stripped frozen tuna M2 collected from the frozen tuna M and packed was used, and the K value of the thawed tuna was changed with time except that no treatment with an oscillating electric field was performed. Examined. The storage temperature of the refrigerator was the same as in the experiment (a), and the difference between the two was within 0.2 ° C.

From the K values obtained in the above experiments (a) and (b), the K value reduction rate (%) defined by the following equation, which is a measure of the degree of the treatment effect by the oscillating electric field, was obtained.

Here, X is the K value obtained in the experiment (b) and is not treated by the oscillating electric field, and Y is the K value obtained in the experiment (a) and is due to the oscillating electric field. This is the K value when processing is being performed.

The larger the K value reduction rate, the more the increase in K value with time is suppressed, and the higher the effect of the oscillating electric field is.

<Comparative Experimental Example 1> Experiment (c) A comparative oscillating electric field generator Q manufactured in the same manner as the oscillating electric field generator P of the experiment (a) except that the coil 50 was not inserted, and the frozen tuna M. Using the packed strip-shaped frozen tuna M3, the change with time of the K value of the thawed tuna was examined in the same manner as in the experiment (a).

Experiment (d) In Experiment (c), the stripped frozen tuna M4 sampled from the frozen tuna M was packed and packed, and the K value of the thawed tuna was changed with time except that no treatment with an oscillating electric field was performed. Examined. The storage temperature of the refrigerator was the same as in the experiment (c), and the difference between the two was within 0.2 ° C.

From the K values obtained in the above experiment (c) and experiment (d), the K value reduction rate (%) was obtained in the same manner as in Experimental Example 1.

 The above results are shown in Table 1 below.

As can be understood from the results of the K value reduction rate in Table 1 above, the processing effect by the oscillating electric field of the oscillating electric field generator P according to the present invention in which the coil 50 is inserted is that the coil 50 is not inserted. It is apparent that the effect is significantly higher than the processing effect of the comparative oscillating electric field generator Q by the oscillating electric field.

<Experimental Example 2> As shown in FIG.
The oscillating electric field generating device according to the present invention was manufactured in the same manner as the experiment (a) of Experimental Example 1 except that the position included in the part B was changed to the position included in the part B. The same experiment as in b) was carried out to obtain respective K value reduction rates, and it was confirmed that the K value reduction rates were almost the same as in Experimental Example 1 and the treatment effect by the oscillating electric field was high.

<Comparative Experimental Example 2> As shown in FIG. 2, the insertion position of the coil 50 is changed from the position on the resistance R side of the parallel impedance Z and the position on the diode D side of the L-shaped circuit 41 to the other output of the boosting unit 30. ~ side
Experiment of Experimental Example 1 except that the position from the branch point H to the second terminal 46 at 32 to the node 44 in front of the output capacitor 43 is changed to the position from the output capacitor 43 to the first terminal 45, respectively ( A comparative oscillating electric field generator was produced in the same manner as in a), and the same K value reduction rate was obtained by performing the same experiments as in Experiment (a) and Experiment (b). Is almost the same as Comparative Experimental Example 1,
No improvement in the treatment effect due to the oscillating electric field was observed.

[Effect of device]

As described above, according to the present invention, in the circuit from one output side of the booster section to the output capacitor, the portion except the resistance side of the parallel impedance and the other output side of the booster section to the second terminal. Since the configuration in which the coil is inserted at any position of the parts up to is adopted, it is possible to obtain an oscillating electric field generator having a significantly high processing effect by the oscillating electric field.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of an oscillating electric field generator according to the present invention, and FIG. 2 is a schematic view showing a coil insertion position. 10 …… Power supply section, 20 …… High frequency generation section 30 …… Boosting section, 40 …… Conversion section 41 …… L-shaped circuit, 42 …… Cast connection circuit section 43 …… Output capacitor, 44 …… Node 45 …… 1st terminal, 46 ... 2nd terminal 50 ... coil, R ... resistance C ... capacitor, Z ... parallel impedance D ... diode, H ... branch point

Claims (1)

(57) [Scope of utility model registration request] 1. An oscillating electric field generator incorporated in a processing device for applying an oscillating electric field to an object to be processed, comprising a power source section, a high frequency generating section for converting the frequency of the power source section to a high frequency, and The booster includes a booster that boosts the high frequency from the high-frequency generator, and a converter that removes a DC component from the output of the booster to extract the high frequency. The converter includes a parallel impedance including a resistor and a capacitor and a diode. A cascade connection circuit section configured by cascade-connecting a plurality of circuits each including a set, an output capacitor connected to a subsequent stage of the cascade connection circuit section, and a first terminal connected to the output capacitor, A second terminal branched from the booster and connected to the booster without passing through the parallel impedance; and a circuit from one output side of the booster to an output capacitor Oscillating electric field generating apparatus characterized by inserting the coil from the other output side portion and the booster unit excluding the resistance side of the parallel impedance at any position of the portion leading to the second terminal there.