JP2021107239A - Electric field generating container - Google Patents

Abstract

To suppress loading capacity reduction of electric field generating containers.SOLUTION: In an electric field generating container which includes a container housing 2 having a storage chamber for storing to-be-stored objects, a reefer device 3 having a housing 3c to be attached to the container housing 2 and adjusting an inside temperature of the storage chamber, and an electrode member 5 arranged in the container housing 2 and forming an electric field in the storage chamber, an electric field generating control device 3j is provided inside the housing 2 of the reefer device 3 and performs energization control against the electrode member 5.SELECTED DRAWING: Figure 4

Description

The present invention relates to an improvement of an electric field generating container.

An electric field generating container capable of generating an electric field in a storage chamber of a reefer container is known (see Patent Document 1 as an example). By forming an electric field in the storage room of the reefer container, it is possible to maintain the freshness of fresh food as a “storage object”. The electric field device for forming an electric field in the accommodation chamber includes an electrode member for forming an electric field in the accommodation chamber and an electric field generation control device for controlling energization for forming an electric field for the electrode member.

Japanese Patent No. 6499366

The reefer container is provided with a reefer device for adjusting the indoor temperature of the storage chamber in the container housing. The reefer device has a housing, and is configured as one unit device in which various devices and parts such as a compressor, a condenser, an inverter, a sensor, and piping are arranged inside the housing. In order to arrange the electric field generation control device in such a reefer container, there is a problem that the total length of the storage chamber of the container housing is shortened. That is, as shown in FIG. 6, in the conventional reefer device 20, the total length of the accommodation chamber of the container housing 21 is shortened to arrange the reefer device 22, and the reefer device 22 projects from the reefer device 22 in the longitudinal direction of the container housing 21. A support frame 23 is newly installed, and an electric field generation control device 24 is arranged on the support frame 23. Therefore, the total length of the accommodation chamber is shortened by the length L of the support frame 23, and the loading capacity is reduced.

The present invention has been made in view of the above problems, and an object of the present invention is to suppress a reduction in the loading capacity of an electric field generating container.

One aspect of the present invention includes a container housing having a storage chamber for accommodating an object to be stored, a reefer device having a housing to be attached to the container housing and adjusting the indoor temperature of the storage chamber, and the container. An electric field generation container arranged in a housing and having an electrode member forming an electric field in the accommodation chamber is provided in the housing of the reefer device and includes an electric field generation control device for controlling energization of the electrode member. It is characterized by that.

According to one aspect of the present invention, since the electric field generation control device is arranged in the housing of the reefer device, it is possible to suppress the reduction of the load capacity. Here, the fact that the electric field generation control device is arranged in the housing of the reefer device does not exclude that a part of the electric field generation control device is arranged so as to protrude from the inside of the housing as much as possible.

According to the present invention, it is possible to suppress a decrease in the loading capacity of the electric field generating container.

FIG. 2 is a cross-sectional view of an electric field generating container according to an embodiment along the line II of FIG. FIG. 2 is a cross-sectional view of an electric field generating container along the line II-II of FIG. The explanatory view which shows typically the reefer device provided in the electric field generation container of FIG. The enlarged view which shows the installation state of the electric field generation control device of FIG. The explanatory view which shows typically the internal structure by omitting the upper door and the lower door of the electric field generation control device of FIG. Explanatory drawing which shows the installation state of the electric field generation control device of the electric field generation container by the prior art.

[1] In addition to exemplifying the means for solving the problem, one aspect of the present invention can be further grasped as the following aspect based on the following embodiment.

[2] In one aspect and the embodiment of the present invention, the electric field generation control device is provided in a cabinet and the cabinet, and a power source for supplying drive power from the reefer device to the electric field generation control device. It may have a power supply connecting portion for connecting the wires and a high-voltage line connecting portion for connecting the high-voltage electric wire provided in the cabinet and connected to the electrode member. According to this, since the cabinet has a power supply connection portion and a high-voltage line connection portion, the electric field generation control device can be miniaturized.

[3] In one aspect and the embodiment of the present invention, the electric field generation control device has an operation display device for displaying an operation screen, and the cabinet has at least a window facing the operation screen. It may have a plurality of doors including a door. According to this, the operation screen can be exposed to the outside by opening the first door. In addition, since the other doors can be kept closed, it is possible to reduce the chance that the entire inside of the cabinet is exposed to the outside, and it is possible to protect the parts arranged inside the cabinet.

Description of the Embodiment [FIGS. 1 to 5]

Next, a preferred embodiment of the present invention will be described. The present embodiment described below does not unreasonably limit the content of the present invention described in the claims, and all the configurations described in the present embodiment are indispensable as a means for solving the present invention. Not necessarily.

In the following description, the door 2e of the electric field generating container 1 is set as the front surface, the left-right direction (width direction) is the X direction, the vertical direction (height direction) is the Z direction, and the front-rear direction (longitudinal direction) is the Y direction. .. The terms "first" and "second" described in the present specification and claims are used to distinguish different components, and are used to indicate a specific order or superiority or inferiority. It's not a thing. The electric field generating container 1 shown in the drawing schematically shows a main part of the apparatus configuration in order to facilitate understanding.

The electric field generating container 1 shown in the embodiment shows an example in which the outer dimension, the inner dimension, and the door opening dimension are configured as a 40-foot container (40-foot high cube reefer container). That is, the length (Y direction) of the outer dimension is 12,192 mm, the width (X direction) is 2,438 mm, and the height (Z direction) is 2,896 mm (the scale in each figure is the actual dimensional ratio). Does not match.). However, the electric field generating container of the present invention can also be applied to 20 feet, 40 feet non-high cube, and any size reefer container.

Explanation of electric field generation container 1

The electric field generating container 1 includes a container housing 2, a temperature adjusting device, and a reefer device 3 which is a cooling device. The container housing 2 is formed in a rectangular parallelepiped shape, and a storage chamber 4 is formed inside the container housing 2.

Description of container housing 2

The container housing 2 includes a ceiling portion 2a, a pair of side wall portions 2b, a front wall portion 2c, a floor portion 2d, and a door 2e. The ceiling portion 2a, the pair of side wall portions 2b, the front wall portion 2c, the floor portion 2d, and the door 2e are each composed of an exterior plate, an interior plate, and a heat insulating material provided between the exterior plate and the interior plate. Therefore, the influence of the outside air temperature is eliminated so that the room of the accommodation room 4 can be maintained at a predetermined temperature by the reefer device 3.

The surface of each interior plate of the ceiling portion 2a, the pair of side wall portions 2b, the front wall portion 2c, the floor portion 2d, and the door 2e facing the interior of the accommodation chamber 4 constitutes the "indoor surface" of the accommodation chamber 4. The accommodation chamber 4 is formed by a space surrounded by interior plates of a ceiling portion 2a, a pair of side wall portions 2b, a front wall portion 2c, a floor portion 2d, and a door 2e. The front wall portion 2c is composed of a front wall exterior plate 2c1, a front wall interior plate 2c2, a front wall heat insulating material 2c3, and a reefer device 3 fixedly installed on the front wall portion 2c.

As shown in FIG. 1, the reefer device 3 has an intake unit 3a for sucking in the space of the accommodation chamber 4 and an air outlet 3b for sending cold air to the accommodation chamber 4. The cold air blown out from the air outlet 3b to the accommodation chamber 4 reaches the door 2e by guiding the wind direction by the groove-shaped floor ventilation passage 2d1 formed in the gap between the plurality of T rails constituting the floor portion 2d. .. The cold air rises along the door 2e, reaches the ceiling surface 2a1 of the ceiling portion 2a, flows forward along the ceiling surface 2a1, and is sucked into the intake portion 3a of the reefer device 3. In the containment chamber 4, a circulating flow of cold air is formed as shown by the arrow of the alternate long and short dash line in FIG.

A plurality of electrode members 5 are installed on the ceiling surface 2a1 of the accommodation chamber 4. Fourteen electrode members 5 are installed in the electric field generating container 1 of FIGS. 1 and 2. The electrode member 5 is formed in a rod shape over the entire length. The plurality of electrode members 5 are arranged in parallel so as to be separated from each other in the longitudinal direction (Y direction) of the container housing 2, and the longitudinal direction of each electrode member 5 is the width direction (X direction (X direction) of the container housing 2). It is arranged along the "intersection direction")).

The electrode member 5 includes an electrode accommodating member 6 and an electrode plate 7 to which a high voltage is applied to generate an electric field. The electrode accommodating member 6 is made of an electrically insulating resin. The electrode accommodating member 6 is formed in a tubular shape in which both ends are hermetically sealed.

The electrode plate 7 is housed inside the electrode housing member 6. The electrode plate 7 is formed of a conductive plate, and can be formed of an aluminum plate as an example.

As shown in FIG. 2, each electrode plate 7 is connected to the electric field generation control device 3j via a conduction path 9 and a high-voltage electric wire 3j14 described later. The conduction path 9 is composed of a main electric wire 9a, a branch electric wire 9b, and a branch connector 9c. Since the plurality of electrode plates 7 are connected in parallel to the reefer device 3, even if any one of the electrode plates 7 (electrode member 5) is damaged and cannot be electrically connected, the other electrode plates 7 are electrically connected. You can keep it going. Since the branch connector 9c is a waterproof connector, there is no problem even if water adheres to it. Therefore, the storage chamber 4 can be washed with water.

Description of reefer device 3

The reefer device 3 is configured as a unit device to be mounted on the container housing 2. The reefer device 3 is fixedly installed on the front wall portion 2c by bolting as shown in FIGS. 1 to 3. The reefer device 3 has a housing 3c. The housing 3c has a frame body 3c1 and a reefer cabinet 3c2. The frame body 3c1 is divided into an upper part, an intermediate part, and a lower part. The middle portion and the lower portion are provided in front of the reefer cabinet 3c2.

Two opening doors 3d are installed on the upper part. The inside of the reefer cabinet 3c2 can be accessed by opening the opening door 3d. A partition shelf 3e for partitioning the intermediate portion and the lower portion is arranged in the intermediate portion, and the partition shelf 3e is mainly equipped with a condenser 3f, an operating device 3g for operating the temperature control of the storage chamber 4, and the like. .. The operation device 3g has a display screen 3g1 and an operation unit 3g2.

A compressor room 3h, an inverter device 3i, and an electric field generation control device 3j are installed in the lower part. A metal protective panel 3k is installed in front of the electric field generation control device 3j and the inverter device 3i. The protective panel 3k is formed at a height lower than that of the upper door 3j3 described later of the electric field generation control device 3j. Therefore, when operating the operating device 3g, it is convenient because only the upper door 3j3 can be opened without interfering with the protective panel 3k.

There is a gap between the protective panel 3k and the inverter device 3i, and a power cable accommodating portion (see FIG. 3) for accommodating the power cable 3 m is provided in the gap. The power cable 3m is composed of a power plug 3m1 and a cable 3m2, and the cable 3m2 is connected to the reefer device 3. The power cable 3m supplies external power to the reefer device 3 by connecting to the power cable of the power supply device such as the power supply box or the container stand installed on the container terminal and the container ship.

From a functional point of view, the reefer device 3 as described above comprises a condenser 3f, an operating device 3g, a compressor chamber 3h, an inverter device 3i, etc., which have a temperature adjusting function, and constitutes a cooling unit (cooling device) 3A. The electric field generation control device 3j, which is responsible for the electric field function, constitutes the electric field generation control unit 3B, and these are integrated to form an electric field temperature control unit.

Explanation of Electric Field Generation Control Device 3j [Fig. 3, Fig. 4, Fig. 5]

The electric field generation control device 3j is installed in the reefer device 3. The electric field generation control device 3j includes a cabinet 3j1. The cabinet 3j1 has a plurality of doors that close the front opening of the main body 3j2, that is, an upper door (first door) 3j3 and a lower door (second door) 3j4.

The upper door 3j3 opens and closes the upper accommodating portion (first accommodating portion) 3j5 of the main body 3j2, and in the closed state, liquidally closes the upper accommodating portion 3j5. The upper door 3j3 is provided with a window 3j7 for visually recognizing the inside (display screen 3j81) from the outside.

The lower door 3j4 opens and closes the lower accommodating portion (second accommodating portion) 3j6 of the main body 3j2, and in the closed state, liquidally closes the lower accommodating portion 3j6. The lower door 3j4 cannot be opened unless the facing protective panel 3k is removed. The reason why it is difficult to open the lower door 3j4 is that a high-voltage power supply unit that generates an electric field is installed in the lower accommodating unit 3j5 to protect it and ensure safety.

The upper accommodating portion 3j5 is provided with an operation display device 3j8 having a display screen 3j81, a transformer (not shown), and a first mechanical unit 3j9 including a PLC, a power supply device, a breaker device, and the like. By operating the operation display device 3j8, various operations of the electric field generation control device 3j are controlled. As described above, the upper door 3j3 can be opened without interfering with the protective panel 3k. Therefore, when operating the operation display device 3j8, only the upper door 3j3 can be opened for operation, which is convenient.

A second mechanical unit 3j10 including a relay group, a fan motor, a heater, and the like, and a third mechanical unit 3j11 including various terminal blocks, a high-voltage power supply unit, and the like are installed in the lower accommodating unit 3j6.

The electric field generation control device 3j receives power from the reefer device 3 and drives the electric field generation control device 3j. Therefore, a power supply connecting portion 3j13 for connecting the other end of the power supply line 3j12 whose one end is connected to the reefer device 3 is provided on the side surface portion of the cabinet 3j1 of the electric field generation control device 3j.

The electric power supplied through the power supply line 3j12 drives the PLC via the power supply device of the first mechanical unit 3j9. Further, the electric power supplied from the power supply line 3j12 is boosted by the transformer and supplied to the high voltage power supply unit of the third mechanical unit 3j11. The high voltage supplied to the high-voltage power supply unit is supplied to the electrode plate 7 through the conduction path 9. Therefore, a high-voltage line connecting portion 3j15 for connecting the other end of the high-voltage electric wire 3j14 whose one end is connected to the conduction path 9 is provided on the side surface portion of the cabinet 3j1 of the electric field generation control device 3j.

The high-voltage power line 3j14 is introduced into the reefer cabinet 3c2 through an insertion hole 3c5 that opens in the front plate 3c4. As shown by the alternate long and short dash line in FIG. 3, the high-voltage electric wire 3j14 is wired in the reefer cabinet 3c2 that forms a box-shaped closed space on the back surface side (accommodation chamber 4 side) of the front plate 3c4. It is connected to the conduction path 9 via a connector (not shown).

The conduction path 9 is introduced into the accommodation chamber 4 from the upper part of the reefer cabinet 3c2 and is connected to each electrode plate 7.

In this way, the electric field generation control device 3j transforms the electric power of the reefer device 3 into a high voltage, and provides various mechanical devices necessary for supplying the high voltage to the electrode plate 7 via the conduction path 9 in a single cabinet 3j1. It is configured to be prepared inside. Since the electric field generation control device 3j is compactly configured in this way, the electric field generation control device 3j can be installed in the frame body 3c1 of the reefer device 3.

On the side surface of the cabinet 3j1, in addition to the power supply connection 3j13 and the high-voltage line connection 3j15, a signal line connection (not shown) to which the signal line of the sensor for detecting the open / closed state of the door 2e is connected is installed. ing. When the door 2e is in the open state, the supply of high voltage to the electrode plate 7 is controlled to be stopped.

The cabinet 3j1 is configured as a dustproof / waterproof cabinet having dustproof and waterproof performance equivalent to the dustproof / waterproof standard IP54. Therefore, a dustproof and waterproof seal portion is formed at the contact portion between the upper door 3j3 and the lower door 3j4 and the main body 3j2 (not shown). Further, the power supply connection portion 3j13, the high voltage line connection portion 3j15, and the signal line connection portion described above are installed in the dustproof and waterproof grommet 3j16. Therefore, dust and water droplets do not adhere to the inside of the cabinet 3j1. Therefore, the safety of the electric field generation control device 3j can be enhanced.

A first anti-vibration support leg 3j17 and a second anti-vibration support leg 3j18 are installed on the left and right side surface portions of the cabinet 3j1. They have the same structure. A plurality of the first anti-vibration support legs 3j17 are installed in the depth direction of the cabinet 3j1 and are fixed to the lower frame plate 3c3 of the frame body 3c1 of the reefer device 3. A plurality of the second anti-vibration support legs 3j18 are installed in the height direction of the cabinet 3j1 and are fixed to the front plate 3c4 of the reefer cabinet 3c2 of the reefer device 3. The electric field generation control device 3j is arranged with the lower frame plate 3c3 and the front plate 3c4 via a gap.

The first anti-vibration support leg 3j17 and the second anti-vibration support leg 3j18 are provided with a rubber leg 3j19 made of a rubber-like elastic body. The electric field generation control device 3j can be displaced with respect to the frame body 3c1 of the reefer device 3 fixedly installed in the container housing 2 due to the elastic deformation of the rubber legs 3j19. For example, when the electric field generating container 1 is transferred by using a crane, the container housing 2 may be subjected to vibration and impact. In addition, there is a risk of vibration and impact when sailing on a container ship or when stationary in a container yard or the like. Even in such a case, since the electric field generation control device 3j can be displaced with respect to the frame body 3c1 of the reefer device 3 by elastic deformation of the plurality of rubber legs 3j19, vibration and impact on the constituent mechanical parts can be alleviated. Can be protected.

According to the electric field generation container 1 and the reefer device 3 of the present embodiment as described above, since the electric field generation control device 3j is provided in the housing 3c of the reefer device 3, the reduction in the loading capacity of the electric field generation container 1 is suppressed. can do.

Modification example

The embodiment, which is one aspect of the present invention, can be implemented as various modifications. Therefore, an example will be described.

The reefer device 3 of the above embodiment shows an example in which the electric field generation control device 3j is installed in the lower part of the frame body 3c1, but if it is installed inside the reefer device 3, it is installed in another place (the upper part of the frame body 3c1). Or in the middle part).

Although the electric field generation control device 3j of the above embodiment has shown an example of having an upper door 3j3 and a lower door 3j4, it may be configured to have three or more doors. Further, the upper door 3j3 may be composed of a plurality of doors.

1 Electric field generating container 2 Container housing 2a Ceiling part 2a1 Ceiling surface 2b Side wall part 2c Front wall part 2c1 Front wall exterior plate 2c2 Front wall interior plate 2c3 Front wall insulation 2d Floor part 2d1 Floor ventilation path 2e Door 3 Reefer device 3A Cooling unit (cooling device)
3B Electric field generation control unit 3a Intake unit 3b Outlet 3c Housing 3c1 Frame body 3c2 Reefer cabinet 3c3 Lower frame plate 3c4 Front plate 3c5 Insertion hole 3d Opening door 3e Partition shelf 3f Condenser 3g Operating device 3g1 Display screen 3g2 Operation unit 3h Compression Machine room 3i Inverter device 3j Electric field generation control device 3j1 Cabinet 3j2 Main body 3j3 Upper door 3j4 Lower door 3j5 Upper storage part 3j6 Lower storage part 3j7 Window 3j8 Operation display device 3j81 Display screen 3j9 First machine part 3j10 Second machine part 3j11 Third mechanical part 3j12 Power line 3j13 Power connection 3j14 High-voltage line 3j15 High-voltage line connection 3j16 Glomet 3j17 First anti-vibration support leg 3j18 Second anti-vibration support leg 3j19 Rubber leg 3k Protective panel 3m Power cable 3m 1 Power plug 3m2 cable 4 storage chamber 5 electrode member 6 electrode storage member 7 electrode plate 9 conduction path 9a main wire 9b branch wire 9c branch connector

Claims (3)

A container housing with a storage room for storing items to be stored,
A reefer device that has a housing to be attached to the container housing and adjusts the room temperature of the storage chamber,
In an electric field generating container provided in the container housing and provided with an electrode member that forms an electric field in the accommodation chamber.
An electric field generation container that is arranged in the housing of the reefer device and includes an electric field generation control device that controls energization of the electrode member. The electric field generation control device is
With the cabinet
A power supply connection unit provided in the cabinet and connecting a power supply line for supplying drive power from the reefer device to the electric field generation control device, and
The electric field generating container according to claim 1, which is provided in the cabinet and has a high-voltage line connecting portion for connecting a high-voltage electric wire connected to the electrode member. The electric field generation control device has an operation display device for displaying an operation screen, and has an operation display device.
The electric field generating container according to claim 1 or 2, wherein the cabinet has a plurality of doors including a first door having a window facing the operation screen.

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