JP6962571B2 - Refrigerated storage - Google Patents

Description

The present invention relates to a refrigerated storage, and more particularly to a refrigerated storage capable of maintaining the freshness of, for example, food for a long period of time.

In order to store foods such as vegetables for a long period of time, foods are frozen. However, when frozen, the cells of the food are destroyed, and when thawed, the freshness is significantly reduced. Therefore, conventionally, a high voltage is applied to the inside of the refrigerator to form an electrostatic field atmosphere by voltage vibration, and foods and the like in the refrigerator are refrigerated in the electrostatic field atmosphere to raise the temperature in the refrigerator chamber to several degrees below freezing. Even if the temperature is lowered to a certain degree, the food in the refrigerator can be prevented from freezing. As a result, the freshness of food is maintained for a long period of time.

Examples of such a refrigerated storage for foods include those described in Patent Documents 1 and 2. The refrigerated storage described in Patent Documents 1 and 2 is relatively small, and supplies a voltage to one voltage applying device that applies a high voltage to the inside to form an electrostatic field atmosphere and the voltage applying device. It is configured to include one voltage generator.

By the way, in the case of a relatively large refrigerated storage, since the volume is large, it is necessary to provide a plurality of voltage application devices. Therefore, conventionally, in order to stably supply a high voltage AC voltage to the voltage application device, a plurality of voltage generators are provided corresponding to the plurality of voltage application devices.

However, when a configuration is provided with a plurality of voltage generators corresponding to a plurality of voltage application devices, there is a drawback that the power consumption becomes extremely large.

Japanese Unexamined Patent Publication No. 2001-215574 Japanese Patent No. 3862085

The present invention has been made in view of the above points, and an object of the present invention is to provide a refrigerated storage that can reduce power consumption even in the case of a relatively large refrigerated storage.

In order to solve the above problems, in the refrigerated storage according to the present invention, the electrodes (3a, 3b) for applying a high voltage to the refrigerating chamber (2) to form an electrostatic field atmosphere are provided in the refrigerating chamber (2). It disposed only on the surface facing the one surface and the surface of the one of the inner surface Rutotomoni, wherein the one surface is arranged a plurality of electrodes (3a) is common to said facing surfaces A plurality of voltage application devices (3) configured by disposing electrodes (3b), one voltage generator (4) that supplies voltage to the plurality of voltage application devices (3), and the voltage. By sequentially switching the electrical connection between the generator (4) and each of the plurality of electrodes (3a) on the one surface constituting the plurality of voltage application devices at intervals of several seconds , the voltage generator ( The configuration is provided with a connection control device (5) for switching the voltage application device (3) for applying the voltage generated in 4).

Further, the connection control device (5) may be configured to sequentially switch the voltage application device (3) for applying the voltage generated by the voltage generator (4) at regular intervals.

Further, in the present invention, the voltage generator (4) may be a device that generates an AC voltage of 2500 V to 7000 V.

According to the refrigerated storage according to the present invention, a plurality of voltage applying devices for forming an electrostatic field atmosphere by applying a high voltage to the refrigerating chamber, and one voltage generating device for supplying voltage to the plurality of voltage applying devices. By providing a connection control device that sequentially switches the electrical connection between the voltage generator and each of the plurality of voltage application devices, only one voltage generator needs to be provided, and the power consumption is also voltage. Since only one generator is required, the power consumption can be significantly reduced.

It is a conceptual diagram which shows the refrigerated storage which concerns on 1st Embodiment of this invention. It is a conceptual diagram which shows the refrigerated storage which concerns on the 2nd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 is a diagram showing a refrigerated storage according to the first embodiment of the present invention. The refrigerating storage 1 shown in the figure is a relatively large-sized refrigerating storage 1 mainly used for storing food, and a high voltage is applied to the refrigerating chamber 2 to form an electrostatic field atmosphere by voltage vibration. However, by refrigerating the food in the refrigerating room 2 in an electrostatic field atmosphere, it is possible to prevent the food in the refrigerating room 2 from freezing even if the temperature in the refrigerating room 2 is lowered to about several degrees below the freezing point. It is a thing. As a result, the freshness of the food can be maintained for a long period of time.

The refrigerating storage 1 includes a refrigerating unit 10 for refrigerating the inside of the refrigerating chamber 2 and a control means 20 for controlling the refrigerating unit 10. The refrigerating unit 10 and the control means 20 may have known configurations. Further, the refrigerated storage 1 includes three voltage applying devices 3 that apply a high voltage to the refrigerating chamber 2 to form an electrostatic field atmosphere, and one voltage generating device that supplies a voltage to these voltage applying devices 3. 4 and a connection control device 5 for sequentially switching the electrical connection between the voltage generator 4 and each of the three voltage application devices 3.

In the present embodiment, the voltage applying device 3 is composed of a pair of electrodes 3a and 3b, respectively, and the pair of electrodes 3a and 3b are installed at positions along the inner wall of the refrigerating chamber 2 and arranged so as to face each other. There is. In the present embodiment, the voltage generator 4 is a device that generates an AC voltage of, for example, about 5000 V. The voltage generator 4 and the three voltage application devices 3 are electrically connected via a changeover switch 6 included in the connection control device 5. The connection control device 5 includes a changeover switch 6 and a control means 7 that sequentially changes and controls the changeover switch 6 at intervals of, for example, several seconds. Since the control means 7 can be easily configured to be switched and controlled by using a conventionally known technique, for example, a timer means or the like, a detailed description of the configuration will be omitted. As an example, the control means 7 can be configured to switch a voltage applying device 3 (a pair of electrodes 3a, 3b) that applies a voltage at regular intervals (for example, at intervals of several seconds). As a result, each of the three voltage application devices 3 (three sets of electrodes 3a and 3b) are sequentially operated at intervals of several seconds.

In the present embodiment, since the three voltage application devices 3 are operated by one voltage generator 4, when the conventional three voltage application devices are operated by the three voltage generators, respectively. Compared to, the power consumption is only 1/3. Further, since only one voltage generator 4 needs to be installed, the configuration becomes simple, the assembly becomes easy, and the manufacturing cost can be reduced.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the description of the second embodiment and the corresponding drawings, the same or corresponding components as those of the first embodiment are designated by the same reference numerals, and detailed description of the parts will be omitted below. In addition, matters other than the matters described below and matters other than those shown in the drawings are the same as those in the first embodiment. This point is the same for the other embodiments described below.

FIG. 2 is a diagram showing a refrigerated storage of food according to a second embodiment of the present invention. The refrigerating storage 1-2 shown in the figure is relatively large as in the first embodiment, and therefore, a voltage is applied to form an electrostatic field atmosphere by applying a high voltage to the refrigerating chamber 2. It is equipped with three devices 3.

In the refrigerating storage 1-2 of the present embodiment, one electrode 3a, 3a, 3a of the three voltage applying devices 3 is installed in the refrigerating chamber 2, and for the other electrode, these are put together into one. The inner wall 8 covering the refrigerating chamber 2 is used as the other common electrode 3b. One of the electrodes 3a, 3a, 3a may be arranged in the refrigerating chamber 2 and may have a shelf on which food or the like is placed as an electrode.

In the present embodiment, as in the case of the first embodiment, each of the three voltage application devices 3 is sequentially switched and operated by one voltage generator 4, so that the conventional three voltage devices are operated. The power consumption is 1/3 as compared with the case where the application device is operated by each of the three voltage generators. Further, since only one voltage generator 4 needs to be installed, the configuration becomes simple, the assembly becomes easy, and the manufacturing cost can be reduced.

In the first and second embodiments described above, three voltage application devices 3 are adopted, but of course, the present invention is not limited to this, and two or more are further depending on the size of the refrigerator compartment 2. You may install the number of units. The number of voltage applying devices 3 to be installed needs to be appropriately determined in consideration of the influence on the refrigerated storage of foods and the like due to the size of the refrigerating chamber 2 and the interval at which the voltage supply is switched by one voltage generating device 4. be.

Further, the AC voltage supplied by the voltage generator 4 to the voltage application device 3 is not limited to 5000 V. For example, it is preferable to determine the voltage within the range of about 2500V to 7000V, but of course, the voltage is not limited to this, and an appropriate voltage may be determined within the range in consideration of the characteristics of the refrigerated storage.

Further, the refrigerated storage according to the present invention is not limited to a refrigerated storage for food, and is a storage for other than food, such as animal blood, organs, microorganisms, etc., which need to maintain freshness for a long period of time. If so, it can be applied to anything.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are made within the scope of claims and the technical ideas described in the specification and drawings. Is possible.

1, 1-2 Refrigerator 2 Refrigerator room 3 Voltage application device 3a, 3b Electrodes 4 Voltage generator 5 Connection control device 6 Changeover switch 7 Control means 8 Inner wall 10 Refrigerator unit 20 Control means

Claims (2)

It disposed only on a surface electrode for forming an electrostatic field atmosphere by adding a high voltage to the refrigerating chamber facing the one surface and the surface of the one of the inner surface of the cooling chamber Rutotomoni, of the one A plurality of voltage application devices configured by disposing a plurality of electrodes on the surfaces and arranging common electrodes on the facing surfaces, and a plurality of voltage applying devices.
One voltage generator that supplies voltage to the plurality of voltage application devices, and
The voltage generated by the voltage generator is generated by sequentially switching the electrical connection between the voltage generator and each of the plurality of electrodes on the one surface constituting the plurality of voltage application devices at intervals of several seconds. A refrigerated storage facility provided with a connection control device for switching the voltage application device to be added . The refrigerated storage according to claim 1, wherein the voltage generator is a device that generates an AC voltage of 2500 V to 7000 V.

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