JPH0628584U - Power cable storage structure for container refrigeration unit - Google Patents

Abstract

(57) [Summary] [Purpose] Power cable 4 when handling containers
The power cables 47, 48 prevent the 7, 48 from overflowing the lower space 46 of the capacitor section 42 and being damaged.
Easy to put in and take out. [Configuration] A power cable winder 60 is installed in a lower space 46 of the capacitor section 42.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a power cable storage structure for a container refrigeration unit.

[0002]

[Prior art]

 A schematic configuration of a conventional container refrigeration unit is shown in FIG. 8, where (A) is a front view, (B) is a vertical sectional view taken along the line BB of (A), and (C) is (B). It is a cross-sectional view taken along the line CC of FIG. A refrigeration unit 100 is assembled to one end wall 2 of a rectangular parallelepiped container 1, and cargo is stored in the container 1 through a door provided on the other end wall of the container 1. By operating the refrigeration unit 100, the container 1 is mounted on a ship, truck, rail car, etc. while maintaining the inside air temperature in the container 1 at a temperature set arbitrarily within the range of -25 ° C to + 25 ° C. To transport.

When the refrigeration unit 100 is in operation, the gas refrigerant discharged from the compressor 3 enters the water cooling condenser 5 or the air cooling condenser 4 and is condensed and liquefied there. This liquid refrigerant enters the expansion valve 9 via the dryer 7 and strainer 8 and is throttled there to adiabatically expand into a gas-liquid two-phase refrigerant. This refrigerant enters the evaporator 10, where it evaporates by cooling the air in the refrigerator, and then returns to the compressor 3 via the accumulator 13.

Air inside the container 1 enters the evaporator section 15 from the suction port 14 as shown by the solid arrow, is urged by the evaporator fan 12 driven by the motor 11, and flows through the evaporator 10. After being cooled in the process, it returns to the inside of the container 1 through the air passage 16 and the blowing chamber 18, and is blown into the inside of the container through the gaps between the T-shaped ventilation rails 43 laid on the bottom surface thereof.

When the air-cooled condenser 4 is used, the motor 17 drives the condenser fan 6. Then, the outside air is heated by exchanging heat with the gas refrigerant in the process of passing through the air-cooled condenser 4, as shown by the dashed arrow, and then is urged by the condenser fan 6 to be discharged into the atmosphere.

When using the water-cooled condenser 5, a water supply pipe and a drain pipe (not shown) are connected to the inlet fitting 19 and the outlet fitting 20, and the water control valve 21 is opened. Then, the condenser fan 6 is stopped. Then, the cooling water supplied from the water supply pipe enters the water cooling condenser 5 from the inlet fitting 19 through the water pipe (not shown), and is heated there by exchanging heat with the gas refrigerant. It is discharged from the outlet fitting 20 through the valve 21 and the drain pipe.

The drain condensed on the evaporator 10 drops on the drain pan 22 and is discharged from the drain port 24 via the drain hose 23.

Reference numeral 41 denotes an inner and outer partition wall made of a heat insulating material, which is fastened to the end wall 2 of the container 1 by a flange formed on the entire circumference thereof. A capacitor section 42 is formed outside the partition wall 41 in the center of the lower part thereof, and inside the partition wall 41, an evaporator section 15 is provided above the condenser section 42, an air passage 16 is blown to both sides, and blown out downward. Each chamber 18 is formed. An evaporator 10, an evaporator fan 12 and the like are installed in the evaporator section 15. A compressor 3, an air-cooled condenser 4, a condenser fan 6 and the like are installed in the condenser section 42.

Reference numeral 25 is a control box, 26 is a solenoid valve for liquid injection for injecting and cooling the liquid refrigerant into the compressor 3, and 31 is for detecting the temperature of the air in the refrigerator sucked into the evaporator 10. Intake air temperature sensor, 30 is the insertion port of the thermometer for checking this temperature sensor 31, 33 is the blown air temperature sensor for detecting the temperature of the air blown from the evaporator 10, and 32 is for checking this temperature sensor 33. Thermometer insertion port, 34 is an outlet temperature sensor for detecting the refrigerant outlet temperature of the evaporator 10, 35 is an overheat prevention sensor, 36 is a discharge pipe temperature sensor for detecting the temperature of the discharge pipe of the compressor 3, 37 Is an outside air temperature sensor for detecting the temperature of the outside air flowing into the air-cooled condenser 4, 38 is a lid for inspecting the equipment in the evaporator section 15, and 39 is an inspection. A handle and a ventilator 40 are used when attaching and detaching the lid 38.

Since the container 1 is transported to various parts of the world, a cable 47 and a plug 27 for a 200 V class power supply and a cable 48 and a plug for a 400 V class power supply are used to receive power from power supplies with different voltages all over the world. 28 and a power transformer 29. Then, as shown in FIG. 7, these two types of power cables 47, 48 and plugs 27, 28 are provided behind the condenser section 42 by arranging an enclosure plate 49 in front thereof, that is, the capacitors. It was housed in the lower space 46 of the section 42.

[0011]

[Problems to be solved by the device]

 The length of the power cable is set to 15 m or 18.5 m according to the international standard of the container refrigeration unit, but it is difficult to increase the volume of the lower space 46 of the condenser section 42, so the power cables 47 and 48 must be at the bottom. In addition to being difficult to store in the space 46, the power cables 47, 48 and the plugs 27, 28 could fall from the lower space 46 and be damaged when handling the container 1. In addition, since the power cables 47 and 48 are stacked in the lower space 46, it is inconvenient to take them in and out. To cope with this, if the lower space 46 is divided into two stages using a partition plate, the cost increases. There was a problem.

[0012]

[Means for Solving the Problems]

 The present invention has been proposed to solve the above-mentioned problems, and the gist of the first invention is to provide a container refrigerating unit for accommodating a power cable in the lower space of the condenser section facing the outside. In the unit, a power cable winding machine for the power cable is installed in the lower space, and the power cable is stored in the container refrigeration unit.

The gist of the second invention is that in a container refrigeration unit that stores a power cable in a lower space of a condenser section facing the outside, an enclosure plate is provided around the lower end in front of the lower space. The power supply cable storage structure for a container refrigeration unit is characterized in that a locking mechanism that rotatably supports and locks the surrounding plate substantially horizontally or vertically is provided.

A bent portion that bends inward can be provided at the upper end of the surrounding plate.

Bending portions that bend inward can be provided at the upper end and the lower end of the surrounding plate, respectively.

A power cable winder may be installed on the inner surface of the surrounding plate.

The gist of the third invention is that in a refrigeration unit for a container that stores a power cable in a lower space of a condenser section facing the outside, a surrounding plate of a surrounding plate is erected in front of the lower space. A power supply cable storage structure for a container refrigeration unit, characterized in that a fall prevention member is detachably engaged between the upper end and the back wall of the condenser section.

[0018]

[Action]

 In the first invention, the power cable is stored in the lower space by being wound on the winder.

In the second invention, the power cable is placed in the lower space by placing the power cable on the surrounding plate with the surrounding plate locked horizontally and then vertically locking the surrounding plate. Is stored in.

If a bent portion that bends inward is provided at the upper end of the surrounding plate, the power cable does not drop from the surrounding plate when it is placed on the surrounding plate, and the power cable accommodated in the lower space is not dropped. The source cable does not overflow the lower space.

If the upper and lower ends of the surrounding plate are provided with bent portions that bend inward, respectively, the surrounding plate is locked horizontally before the power cable is pulled out, so that the power cable is moved from the lower space to the front thereof. Brought out to.

If the winder for the power supply table is installed on the inner surface of the surrounding plate, the power supply cable is wound or rewound on the winder while the surrounding plate is locked horizontally.

In the third invention, the power cable housed in the lower space is prevented from overflowing by the fall prevention member.

[0024]

【Example】

 One embodiment of the present invention is shown in FIG. In this first embodiment, a power cable winder 60 is installed in the lower space 46 of the condenser section 42 by being fixed to the floor 42a of the condenser section 42.

Then, the power supply cable 47 or 48 is wound around the winding drum 60b by rotating the winding drum 60b around the shaft 60c while holding the handle 60a. Then, by pulling out the power plug 27 or 28, the power cable 47 or 48 is rewound from the winding drum 60b. It is desirable to provide a stopper to prevent the winding drum 60b from rotating.

Thus, since the power cables 47, 48 are stored in the winding drum 60b in a wound state, the power cables 47, 48 overflow and fall from the lower space 46 of the condenser section 42 during handling of the container 1. There is nothing to do. Since the power cables 47 and 48 are stored in a state of being wound around the winding drum 60b, the volume at the time of storage is smaller than that of the conventional type and the power cables 47 and 48 are not entangled as in the conventional type. None and therefore can be easily withdrawn.

A second embodiment of the present invention is shown in FIG. In the second embodiment, the lower end of an enclosure plate 49 is rotatably supported around a shaft 51 thereof via a hinge 50 in front of the lower space 46, and the enclosure plate 49 is attached to the hinge 50 or other member. The locking mechanism is provided so that it is locked at the vertical position shown by the solid line or at the horizontal position shown by the phantom line.

Then, after placing the power cables 47 and 48 on the surrounding plate 49 in a state where the surrounding plate 49 is locked in the horizontal posture, the surrounding plate 49 is rotated around the axis 51 to be in the vertical posture. , The power cables 47 and 48 are accommodated in the lower space 46 of the condenser section 42 all at once. Even when the power cables 47, 48 are pulled out from the lower space 46, the power cables 47, 48 can be easily pulled out by locking the surrounding plate 49 in a horizontal posture in advance.

As shown in FIG. 3, if a bent portion 49 a that bends inward is provided at the upper end of the enclosure plate 49, when the power cables 47 and 48 are placed on the enclosure plate 49, the power cables 47 and 48 are Since the bent portion 49a prevents the fall, it can be easily placed on the enclosure plate 49. Further, when handling the container 1, the power cables 47 and 48 housed in the lower space 46 are prevented from overflowing from the lower space 46 by the bent portions 49a.

Further, as shown in FIG. 4, if a bent portion 49a that bends inward is provided at the upper end of the enclosure plate 49 and a bent portion 49b that bends inward is provided at the lower end of the enclosure plate 49, the power cable is provided. 47 and 48 do not move relative to each other because they do not move relative to each other, and if the enclosure plate 49 is locked in a horizontal position before pulling out the power cables 47 and 48, the power cables 47 and 48 will be in the lower space. It is easy to pull out the power cables 47 and 48 because they are taken out from 46 in front of them.

A third embodiment of the present invention is shown in FIG. In the third embodiment, a power cable winder 60 is fixed to the inner surface of the enclosure plate 46.

When the shroud 49 is rotated around the shaft 51 of the hinge 50 and locked in the horizontal posture indicated by the broken line, the winder 60 is pulled out in front of the lower space 46. The operation of 60 becomes easy. The winding machine 60 is housed in the lower space 46 by locking the surrounding plate 49 in the vertical position shown by the solid line.

A fourth embodiment of the present invention is shown in FIG. In the fourth embodiment, the enclosure plate 49 is erected in front of the lower space 46 as in the conventional case. A fall prevention member 52 made of a rubber band is fixed to the upper end of the surrounding plate 49, and a hook 53 attached to the tip of the fall prevention member 52 is detachably attached to a metal fitting 54 fixed to the back wall 42b of the capacitor section 42. It can be locked.

Then, the hook 53 is removed from the metal fitting 54, and the power supply cables 47 and 48 are housed in the lower space 46 at the back of the surrounding plate 49 in a state where the fall prevention member 52 is hung outside the surrounding plate 49. After that, if the hooks 53 are placed on the metal fittings 54, the power cables 47 and 48 can be prevented from overflowing the lower space 46 even when the container 1 is handled.

A rope, a cable, a rod, a plate or the like can be used as the fall prevention member instead of the rubber band, and one end of the fall prevention member 52 is attached to the back wall 42b of the capacitor section 42 and the other end is attached. It can also be detachably locked to the upper end of the enclosure plate 49. Further, it can be pivotally attached to the lower end of the surrounding plate 49.

[0036]

[Effect of device]

 In the first invention, since the power cable winder is installed in the lower space of the capacitor section, the power cable is stored by being wound up on the power cable winder and pulled out by rewinding. The power cable can be pulled out and stored easily. Further, since the power cable is stored in a wound state on the winder, it is possible to prevent the power cable from overflowing from the lower space and being damaged when handling the container.

In the second invention, since the surrounding plate is rotatably supported around the lower end in the front of the lower space and a locking mechanism for locking the surrounding plate horizontally or vertically is provided, the surrounding plate is The power cable can be stored in the lower space by placing the power cable on the surrounding plate in a horizontally locked state and then locking the surrounding plate vertically, which facilitates storage of the power cable. Become.

If a bent portion that bends inward is provided at the upper end of the surrounding plate, the bending of the power cable is prevented by this bent portion, so that the power cable can be easily placed on the surrounding plate. Further, since the power supply cable is prevented from overflowing by this bent portion, it is possible to prevent the power supply cable from dropping from the lower space.

If the upper and lower ends of the surrounding plate are provided with bent portions that bend inward, respectively, the power cables can be prevented from being entangled with each other, and the surrounding plate can be locked horizontally before the power cable is pulled out. By doing so, the power cable is brought out in front of the lower space, so that the power cable can be easily pulled out.

If a power cable winder is installed on the inner surface of the surrounding plate, the power cable can be wound or unwound on the power cable winder with the surrounding plate locked horizontally. The operation of the machine becomes easy.

In the third invention, since the fall prevention member detachably engaged is provided between the upper end of the surrounding plate standing in front of the lower space and the inner wall of the capacitor section, the lower space is provided. The overflow of the power cable housed inside can be prevented by the fall prevention member.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of a first device.

FIG. 2 is a vertical cross-sectional view of a main part showing an embodiment of the second invention.

FIG. 3 is a vertical cross-sectional view of a main part showing another embodiment of the second invention.

FIG. 4 is a vertical cross-sectional view of a main part showing still another embodiment of the second invention.

FIG. 5 is a vertical cross-sectional view of a main part showing still another embodiment of the second invention.

FIG. 6 is a perspective view of an essential part showing an embodiment of the third invention.

7A and 7B show a conventional power cable storage structure, in which FIG. 7A is a perspective view and FIG. 7B is a vertical cross-sectional view taken along the line BB of FIG.

FIG. 8 shows a schematic configuration of a conventional container refrigeration unit, (A) is a front view, (B) is a vertical sectional view taken along the line BB of (A), and (C) is (B). It is a cross-sectional view taken along the line CC in FIG.

[Explanation of symbols]

 42 Condenser section 46 Lower space 47, 48 Power cable 60 Winder

Claims (6)

[Scope of utility model registration request] 1. A refrigeration unit for a container, which stores a power cable in a lower space of a condenser section facing the outside, wherein a power cable winder is installed in the lower space. Power cable storage structure. 2. A refrigerating unit for a container, in which a power cable is housed in a lower space of a condenser section facing the outside, wherein an enclosing plate is rotatably supported around the lower end of the enclosing plate in front of the lower space. A power cable storage structure for a refrigerating unit for containers, characterized in that a locking mechanism for locking substantially horizontally is provided. 3. The power cable storage structure for a container refrigeration unit according to claim 2, wherein a bent portion that bends inward is provided at an upper end of the enclosure plate. 4. The power cable storage structure for a container refrigeration unit according to claim 2, wherein bent portions that bend inward are provided at the upper end and the lower end of the enclosure plate, respectively. 5. The power cable storage structure for a container refrigeration unit according to claim 2, wherein a power cable winder is installed on the inner surface of the enclosure plate. 6. A refrigerating unit for a container, which accommodates a power cable in a lower space of a condenser section facing outside, wherein an upper end of an enclosure plate standing upright in front of the lower space and a back wall of the condenser section. A power supply cable storage structure for a container refrigeration unit, characterized in that a drop prevention member that is detachably locked is provided between them.