JPH0117023Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a container refrigeration system.

In the conventional container refrigeration system, as shown in the front view of FIG. 1 and the side view of FIG. Evaporator) 3
After passing through the duct-like ventilation passages on both sides, the air is blown out from the bottom of the refrigeration unit and circulated inside the container.
As shown in the partial cross-sectional view, the main body 4 and members 6 of the refrigeration unit are fixed to the main body 4 and members 6 removably with quick screws etc. for easy inspection. A ventilation path a is formed. Here, 20 is the side wall of the container to which the refrigeration unit is attached, and the refrigeration device slides the refrigeration unit back and forth as shown by the arrow in Figure 3, and fits into the front opening of the container via its mounting collar. are doing.

However, in such a structure, the duct-like ventilation passage a is formed as a part of the refrigeration unit, so if an attempt is made to enlarge the ventilation passage a to reduce ventilation resistance, the container dimension e
is regulated, it is necessary to increase the depth d or reduce the dimension C on the condenser side of the refrigeration unit in which the compressor, condenser, etc. are housed. In order to increase the width, either the ventilation path a must be sacrificed to make it smaller, or the depth d must be increased.

The dimension C for parts storage and the size of the ventilation passage a cannot be made smaller than a certain level, so in the end the depth d
However, increasing the depth d will result in a corresponding decrease in the internal volume of the container.

By the way, as shown in FIG. 3, the front end of the side wall of a conventional container has an unequal wall thickness including a thick part that is twice or more thicker than the wall thickness of the side wall over the length d. However, this thick wall part is not necessary for the strength of the container, and even if this part were viewed as an L-shaped cross section with the same wall thickness, it would not have any particular utility value. ,
Rather, the problem was caused by problems such as baggage getting into this area, causing damage to the baggage or causing the baggage to collapse.

The inventors of the present invention focused on this point, and by forming this L-shaped cross section with uneven wall thickness into an L-shaped cross section with the same wall thickness, containers can be made by utilizing the area that was conventionally treated as dead space. It has been found that it is possible to create a ventilation passage without reducing its strength.

The present invention was proposed in view of these circumstances, and the purpose is to provide a container refrigeration system that has a smaller depth than conventional containers, increases the size of the condenser side, secures ventilation passages, and reduces costs. .

To this end, the present invention has a rectangular hexahedral container with a substantially square cross section, which is attached to the front end opening of a horizontally long rectangular hexahedral container via a collar, and allows cool air to flow into the container through vertical ventilation channels on both sides. In a container refrigeration system that circulates and air-conditions the container, the ventilation passage is connected to a container front end corner portion having an L-shaped cross section formed with a wall thickness that is substantially the same as the container side wall, and a container side wall inner rectangle. It is formed by a refrigeration equipment main body having a relatively small main body width and a relatively large mounting collar, and a large plate that can be opened and closed between both ends of the refrigeration equipment main body and the container side wall. It is characterized by what it did.

An embodiment of the present invention will be explained with reference to the drawings.
Figure 4 is a front view as seen from the inside of the refrigerator, Figure 5 is a view taken in the direction of the V arrow in Figure 4, Figure 6 is a partially enlarged sectional view taken along - in Figure 4, and Figure 7 is a view of Figure 6. 8 is a front view showing the disassembly procedure of FIGS. 6 and 7, FIG. 9 is a partial front view showing a modification of FIG. 4, and FIGS. 10 and 11. The figures are sectional views taken along lines - and XI--XI of FIG. 9, respectively.

In the above figure, the same symbols as in Figs. 1 to 3 indicate the same members as in Figs. 1 to 3, and the air flow is the same as that of the conventional one, so the explanation will be omitted, and the duct-shaped ventilation path will be explained. do.

The ventilation passage is formed by the main body 4 of the refrigeration unit, the side wall 20 of the container, and the cover plate 5, as shown in FIG.

The cover plate 5 is pivotally attached to the main body 4 by a hinge 8 so as to be openable and detachable, and is fixed to a receiving plate 21 on the container side with a quick screw or the like.

Therefore, when attaching or removing the refrigeration unit to the container, remove the cover plate 5 and install it, and when inspecting the ventilation path, open the cover plate 5 as shown at 5''. As a result, it is very easy to attach and detach the unit and inspect the ventilation passage, and the ventilation passage can be formed by effectively utilizing the side wall of the container, that is, the part a′ surrounded by the two-dot chain line, which was conventionally a dead space. Therefore, it is possible to enlarge the condenser side dimension C and the ventilation passage without increasing the depth d.Furthermore, the member 6 that supports the large plate, which was necessary in the past, is no longer required, so the refrigeration unit It is possible to achieve weight reduction and cost reduction.

In the above embodiment, the case where the air circulation is from the top to the bottom of the unit has been described, but the situation is exactly the same even when the circulation is reversed to the above example. As shown in the figure,
It is also possible to attach it to the container side.

As shown in FIG. 8, the cover plate can be attached so as to be openable/closed and detachable using commercially available insert/remove hinges 8a, 8b.

Furthermore, as shown in Figures 9 to 11, the large board is
It is also possible to enable opening/closing/detachment using rail-shaped guides 30, 30' attached to the main body.

In short, according to the present invention, a container having a substantially square cross section is attached to the front end opening of a horizontally long rectangular hexahedral container via a collar, and cool air is drawn into the container through vertical ventilation channels on both sides. In a container refrigeration system that air-conditions the air by circulating the air into the container, the ventilation path is formed between a front end corner portion of the container having an L-shaped cross section formed with a wall thickness that is substantially the same as the wall thickness of the container side wall, and a rectangular area within the container side wall. A refrigeration equipment main body having a main body width smaller than that of the above-mentioned refrigeration equipment main body and a relatively large mounting collar, and a cap plate that can be opened and closed between both ends of the refrigeration equipment main body and the container side wall. The present invention is industrially extremely useful because a compact, low-cost container refrigeration device is obtained by forming the container.

[Brief explanation of drawings]

Fig. 1 is a front view showing a known container refrigeration system, Fig. 2 is a side view of Fig. 1, Fig. 3 is a partially enlarged sectional view taken along - in Fig. FIG. 5 is a front view showing one embodiment, FIG. 5 is a view taken in the direction of the V arrow in FIG. 4, FIG. 6 is a partially enlarged sectional view taken along - in FIG. 4, and FIG. Similarly, FIG. 8 is a front view showing the disassembly procedure of FIGS. 6 and 7, FIG. 9 is a partial front view showing a modification of FIG. 4, and FIGS. 10 and 11 are respectively 9 It is a sectional view along - and XI-XI of the figure. 1...Grill, 2...Blower, 3...Evaporator,
4... Main body, 5, 5'... Oh plate, 8... Hinge, 8a, 8b... Insert/remove hinge, 20... Side wall, 21... Reception plate, 30, 30'... Guide,
a...Ventilation duct.

Claims (1)

[Scope of utility model registration request] It is attached via a collar to the front end opening of a horizontally long rectangular hexahedral container with an approximately square cross section, and is used to air condition the cool air by circulating it inside the container through vertical ventilation channels on both sides. In the container refrigeration system, the ventilation passage includes a front end corner portion of the container having an L-shaped cross section formed with a wall thickness that is substantially the same as the wall thickness of the container side wall, and a main body width that is smaller than the inner rectangle of the container side wall. It is characterized by being formed by a refrigeration equipment main body having a relatively large mounting brim, and a large plate that can be opened and closed between both ends of the refrigeration equipment main body and the side wall of the container. Refrigeration equipment for containers.