JPH0735127B2 - How to cool the luggage storage room of a refrigerating vehicle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling method for a luggage compartment of a refrigerating vehicle.

[0002]

2. Description of the Related Art Conventionally, a refrigerating refrigerating vehicle has a cooler and a refrigerator integrally housed inside a luggage storage chamber, and operates the refrigerator to blow cold air from the cooler to cool the luggage storage chamber. I have to.

[0003]

However, in the case of the refrigerating vehicle described above, since the cooler and the refrigerator are integrally housed inside the luggage storage chamber, the air outlet and the suction port of the cooler are extremely close to each other. However, there is a problem that the cold air blown out through the air outlet easily forms a short-circuit ventilation passage, which makes it difficult to sufficiently cool the foodstuffs and the like in the storage chamber.

[0004]

Therefore, in the present invention, a driver's cab is provided at the front of the chassis, a luggage storage room is provided at the rear, a refrigerator is provided at the bottom of the luggage storage room, and the luggage storage room is provided. A cooler room is formed in the upper part of the front end of the car by projecting forward so as to overlap with a part of the ceiling of the cab.The cooler is housed in the cooler room and there is a space under the projecting room. In addition, a plurality of strip-shaped load receiving frames are erected at a predetermined distance from each other while maintaining a ventilation gap in the direction opposite to the front end face of the luggage storage chamber. And the cold air outlet is opened near the ceiling, and the indoor air inlet on the floor is partitioned by a large number of cargo receiving frames at regular intervals, so that the cool air generated from the cooler is discharged from the cold air outlet. Luggage storage room, blowing out near the ceiling Sequentially cooling the foodstuffs, rises through the space from the upper end of the ventilation gap is sucked from below the air inlet, is cooled again is sucked into the suction port of the cooler,
It is intended to provide a method for cooling a luggage storage room of a refrigerating refrigerator car, which is characterized in that the inside of the luggage storage room is cooled by repeatedly circulating the air blown out toward the ceiling of the luggage storage room and sucking indoor air from the floor surface. .

[0005]

When the food or the like stored in the luggage storage chamber is cooled, the engine of the refrigerator is started, and the cool air generated by the cooler is blown from the cool air outlet toward the ceiling. Cool food items, etc. in sequence, suck in the same cold air from the lower air intake port, raise it through the space from the upper end of the ventilation gap, suck it into the suction port of the cooler and cool it again, and cool air again as described above. It is possible to cool foodstuffs and the like in the luggage storage chamber by repeating the circulation of blowing air toward the ceiling of the luggage storage chamber and sucking indoor air from the floor surface.

At this time, since a space is interposed between the air gap to the cooler chamber and the cooler, a large amount of air in the space is sucked into the cooler, and the baggage is inevitably accommodated from the air gap. It is possible to satisfactorily inhale the air in the room and blow out the cool air from the cool air outlet of the cooler to the luggage storage room, promote the circulation of the cool air, and efficiently perform the refrigerating action of the luggage storage room.

Furthermore, the air flow rate can be adjusted by utilizing the load receiving frame by adjusting the loading method to adjust the amount of the gap between the loading items. Even when adjusting the load, the load receiving frame can prevent the load from slipping forward and can prevent the ventilation gap from being blocked. Moreover, since the front end inner wall is stretched over the upper half of the strip-shaped load-receiving frame, even if the load is small, the partition is formed in the load-receiving frame part, and the air flows from the space below the load-receiving frame into the ventilation gap. As a result, the air can be smoothly circulated in the luggage storage chamber.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Referring to the drawings, an embodiment of the present invention will be described. In the present invention, a luggage storage room 2 is mounted on a chassis 1, a refrigerator 3 is provided under the luggage storage room 2, and the luggage storage room is accommodated. Room 2
The cooler chamber 4 provided in the upper part of the front end of the front wall of the storage chamber 2 projects forward, and the front end inner wall 5 is inserted into the front end surface 5'of the storage chamber 2 through the ventilation gap t.
Is provided, the cold air outlet 6 is opened near the ceiling of the front end inner wall 5, the indoor air inlet 7 is opened near the floor surface, and the upper left and right of the front end inner wall 5 are positioned below the cool air outlet 6 in the left and right positions. A refrigerating refrigerating vehicle is constructed by providing the indoor air auxiliary inlets 8, 8 which can be freely opened and closed.

As shown in FIG. 1, the luggage storage chamber 2 is box-shaped and has inner and outer surfaces covered with a metal plate such as aluminum, a heat insulating material is interposed between the metal plates, and the side surface and the rear end surface are opened and closed. Each door 9 is provided. Cooler 10
Is connected to the refrigerator 3 and is housed in the upper part of the inner front end of the cooler chamber 4 as shown in FIGS.

The front end inner wall 5 is a metal plate made of aluminum or the like, and as shown in FIGS. 2 and 3, a large number of load receiving frames 11 are provided side by side on the inner surface of the front end so as to be spaced apart from each other by a predetermined distance. In the opposite direction of the front end face 5'of the
To form. Moreover, as shown in FIG. 2, the front end inner wall 5 is stretched over the upper half of a large number of strip-shaped cargo receiving frames 11, and the lower half is configured to allow air to flow.

A cold air outlet 6 from the cooler 10 is opened near the ceiling of the front end inner wall 5, and the cold air outlet 6 is in a range narrower than the width of the luggage storage chamber 2 and
It is located almost in the center.

[0012] Therefore, the cold air blow-out port 6 can blow the cool air into the luggage storage chamber 2 vigorously, and the entire interior of the luggage storage chamber 2 can be cooled uniformly.

Reference numeral 12 in the drawing denotes a cold air duct connecting the outlet 13 of the cooler 10 and the cold air outlet 6, 15 is a guide guide of the sliding door 14, 16 is a handle of the sliding door 14, and 17 is the above. Vertical slit air inlets formed on both sides of the inner wall 5, 18
Is a front wheel for opening and closing the door 9, 21 is a rear wheel, 22 is a protective fence provided on the chassis 1, and 23 is a fuel tank.

Further, the cooler chamber 4 provided in the upper part of the front end of the luggage storage chamber 2 projects to the front, and the cab 19
The cooler chamber 4 can be configured to be as wide as possible by arranging the cooler 10 in a state of being partially overlapped with the ceiling surface and housing the cooler 10 in the forward protruding portion of the cooler chamber 4.

A space S is formed in the lower part of the cooler chamber 4 in the luggage storage chamber 2 and the space S is in communication with the upper end of the ventilation gap t formed by the narrow load receiving frame 11. I am configuring.

Further, the cooler chamber 4 projecting forward is arranged in a state of being overlapped with a part of the ceiling surface of the operating part 19, and further, an inclined surface 4a is formed below the cooler chamber 4 to form an inclined surface. The lower end of 4a is connected to the front end surface 5'of the luggage storage chamber 2.

A distribution space M is formed between the inclined surface 4a and the front end surface 5'of the cooler chamber 4 and the operating portion 19.

With such a structure, in the refrigeration vehicle, the air in front of the cooler chamber 4 protruding during traveling is poured into the lower circulation space M along the lower inclined surface 4a, and the air flowing laterally is negative The air in the distribution space M is discharged to the outside of the refrigeration vehicle by the pressure suction action, so that the vehicle can travel while improving the reduction in air resistance.

Therefore, when the engine of the refrigerator 3 is started to perform the refrigerating operation, the cool air from the cooler 10 circulates through the cold air outlet 6 in the blow-out luggage storage chamber 2 in the direction of arrow a shown in FIGS. 1 and 3. Then, the foodstuffs and the like in the baggage accommodating chamber 2 are sequentially cooled, and the air is sucked in from the lower air suction port 7 in the direction of the arrow b and rises from the upper end of the ventilation gap t through the space S to the suction port of the cooler 10. It is possible to cool the inside of the luggage accommodating room 2 by repeating the circulation in which the cool air is blown to the ceiling of the luggage accommodating room 2 and the indoor air is sucked from the floor surface as described above, after being sucked into 24 and cooled again. .

When the suction port 7 on the floor is closed by the cardboard box loaded in the luggage storage room 2, the auxiliary suction ports 8 and 8 are opened to an appropriate width to circulate cold air. It can be carried out.

Even if the suction port is not closed, if the auxiliary suction ports 8 and 8 are opened, the warmed air accumulated on the side wall surfaces of the luggage storage chamber 2 rises, and the auxiliary suction ports 8 and 8 is taken into the cooler chamber 4, and the air in the load storage chamber, which cannot be sufficiently taken in only by the indoor air intake port 7 near the floor, is taken in also from the vicinity of the cool air outlet 6.
It improves the cooling effect.

Since the present embodiment is constructed as described above, the heavy refrigerator 3 is separated from the cooler 10 and provided in the lower portion, so that the center of gravity of the entire vehicle can be lowered and the vehicle can be stabilized. Instead, the cooler chamber 4 can be downsized so as to project from the upper part of the front end of the luggage storage chamber 2 to the upper part of the operator's cab 19, and the cooler chamber 10 that projects forwardly at the upper front end of the luggage storage chamber 2. 4 and can be fully used for the cargo in the luggage storage chamber 2 without reducing the volume, and the ceiling-side cool air outlet 6 and the floor-side air inlet 7 opened to the front end inner wall 5 are provided. Can be sufficiently isolated and the formation of a short circuit passage for cold air can be prevented.

Moreover, when the floor-side air intake port 7 is closed due to a cargo such as a cardboard box, the auxiliary intake ports 8 and 8 are opened to an appropriate size so that the inside of the luggage storage chamber 2 is closed. There is a merit that the cold air circulation can be smoothly performed without any hindrance, and even if the air suction port 7 at the floor surface is not closed, the auxiliary suction ports 8 and 8 are opened to communicate with the cooler chamber 4. By setting the state, it becomes possible to take in air on the inner wall surface of the luggage storage chamber 2 that cannot be taken in only from the air intake port 7 on the floor surface.

Furthermore, since the auxiliary inlets 8 are located at the left and right positions below the cold air outlet 6 near the ceiling, the blowing out of the cold air and the intake of the air in the accommodation room can be separated as much as possible, and the cold air can be directly supplied. There is also an effect that air can be effectively taken in while preventing the air from returning to the auxiliary suction ports 8 and 8.

Further, since the space S is interposed between the air gap t to the cooler chamber 4 and the cooler 10, a large amount of air in the space S is sucked into the cooler 10 and the same air is inevitably taken. Air can be sucked into the luggage storage chamber 2 through the gap t and cool air can be satisfactorily blown out from the cool air outlet 6 of the cooler 10 to the luggage storage chamber 2 to promote the circulation of the cold air.
The refrigerating action of can be efficiently performed.

The air flow rate can be adjusted using the load receiving frame by adjusting the loading method to adjust the amount of the gap between the loading items. The loading method can be adjusted. Even in the case of carrying out, it is possible to prevent the luggage from slipping forward by the cargo receiving frame and prevent the ventilation gap from being blocked.

Further, since the cooler chamber 4 projecting forward is disposed so as to overlap with a part of the ceiling surface of the operating section 19, the air hitting the projecting cooler chamber 4 from the front is at the lower part. It flows downward along the inclined surface 4a, flows between the operating part 19 and the front end surface 5'of the cooler chamber 4, and is discharged to the outside of the refrigeration vehicle by the negative pressure suction action of the air flowing on the lateral side thereof. Can be further improved, and the structure can be such that traveling of the refrigeration vehicle is not hindered as much as possible.

[0028]

The present invention has the following effects.

Since the cool air outlet is provided on the ceiling of the cooler room in which the cooler is housed and the air suction port is provided on the floor surface, the formation of a short-circuit ventilation passage for the cool air is prevented and the cool air circulation is smoothly performed. Therefore, the inside of the luggage storage chamber can be sufficiently cooled.

Since a space is present between the air gap to the cooler chamber and the cooler, a large amount of air in the space is sucked into the cooler, and the air in the luggage storage chamber is inevitably drawn from the air gap. It is possible to satisfactorily inhale the air and to blow the cool air from the cool air outlet of the cooler to the luggage storage chamber, promote the circulation of the cool air, and efficiently perform the refrigerating action of the luggage storage chamber.

Since the indoor air intake port is partitioned by a large number of load receiving frames at regular intervals, even if the air intake port is wide, the stored baggage does not slip forward and block the ventilation gap.

Therefore, the indoor air intake port is formed wide,
In addition to making it possible to smoothly circulate air,
By appropriately adjusting the loading method of the luggage, it is possible to adjust the air flow rate by utilizing the interval between the load receiving frames.

[Brief description of drawings]

FIG. 1 is a front view showing a refrigerating vehicle according to the present invention.

FIG. 2 is an enlarged vertical sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged vertical sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 chassis 2 luggage storage room 3 refrigerator 4 cooler room 5 front end inner wall 6 cold air outlet 7 indoor air intake port 8 indoor air auxiliary intake port 14 sliding door

Claims (1)

[Claims] 1. A cab 19 is provided at the front of the chassis 1, a luggage storage 2 is provided at the rear, a refrigerator 3 is provided at the bottom of the luggage storage 2, and a front end of the luggage storage 2 is provided at the top. The cooler room 4 is formed by projecting forward so as to overlap with a part of the ceiling surface of the operator's cab 19, and the cooler 10 is provided in the cooler room 4.
To form a space S in the lower part of the cooler chamber 4 projecting forward, and maintaining a ventilation gap t in the direction opposite to the front end face 5'of the luggage storage chamber 2 and holding the front end inner wall in the upper half part. 5
A large number of stretched strip-shaped load-receiving frames 11 are erected at a predetermined distance from each other so that the upper end of the ventilation gap t communicates with the space S, and the cold air outlet 6 is opened near the ceiling. By partitioning the indoor air intake 7 near the floor with a large number of load receiving frames 11 at regular intervals, cool air generated from the cooler 10 is blown from the cool air outlet 6 toward the ceiling,
The foodstuffs and the like in the luggage storage chamber 2 are sequentially cooled, sucked from the lower air suction port 7 and risen from the upper end of the ventilation gap t through the space S, and sucked into the suction port 24 of the cooler 10 to be cooled again. A method for cooling the inside of the luggage storage room of a refrigerating freezer vehicle, characterized in that the inside of the luggage storage room 2 is cooled by repeatedly circulating air that is blown out toward the ceiling of the luggage storage room 2 and sucks indoor air from the floor surface.