JPH102650A - Vehicle-mounted type refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a loading space of a carrier vehicle to be effectively utilized and further enable either a replacement of battery or a battery charging operation to be easily carried out even in the case that the number of items to be loaded is large. SOLUTION: This refrigerator comprises a heat insulating main body 3 of a refrigerator storing items and having an evaporator 9a acting as a component element of a cooling device; a machine chamber 5 where a compressor 9d, a condenser and a fan for the condenser or the like which are composing elements of the cooling device; and a battery chamber 4 in which a battery 12 acting as a power supply for the compressor 9b and the fan for the condenser is mounted. This device is constructed to have a structure in which the machine chamber 5 and the battery chamber 4 are mounted at an upper location and a lower location of a rear upper surface of the main body 3 of the refrigerator and the front surface of the battery chamber 4 is provided with a taking-out port for the battery 12. With such an arrangement as above, since both taking-out operation and storing for the battery 12 can be carried out at the location where the items to be loaded on a cargo table of a carrier vehicle are not adjacent, i.e., at the upper surface of the main body 3 of the refrigerator, both replacement and electrical charging for the battery 12 can be performed quite easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle refrigerator for storing fresh foods, medicines and the like which need to be kept cool and transported by a transport vehicle such as a truck.

[0002]

2. Description of the Related Art Conventionally, when delivering goods, such as fresh foods, which need to be kept cool, goods from a client are once collected at a collection place, loaded onto a transport vehicle from the collection place, and cooled while being cooled. A distribution system has been established to deliver the articles to a transport vehicle. When the articles are loaded on a transport vehicle, they are stored in advance in a cool box, and the cold box is loaded on the transport vehicle.

[0003] As a cooling structure of such an in-vehicle cool box, for example, a cooling structure disclosed in Japanese Patent Application Laid-Open No. 1-306789 is known.

In this cool box, a cool storage medium, an evaporator for cooling the cool medium, and a cooling fan for circulating the cold stored in the cool medium inside the main body are installed in the upper part of the cool box main body. On the other hand, a compressor, a condenser,
A machine room in which a condenser fan is installed and a battery room having a battery for supplying power to the cooling fan are provided.

[0005] When accumulating cold heat in the regenerator inside the cool box, power is supplied from an external power source to the compressor, the cooling fan, and the condenser fan to drive each device. Thereby, the air cooled by the evaporator flows around the regenerator, and the regenerator is cooled. When cold heat is accumulated in the cool storage agent, articles are stored in the cool box main body, and the cool box is mounted on a transport vehicle for delivery. During this delivery, the cooling fan is driven by the electric power of the battery, and the inside of the cool box main body is maintained at a desired temperature by the heat of fusion of the regenerator.

However, in this in-car cold storage, the heat of fusion of the regenerator decreases with the lapse of transportation time.
When the transportation and delivery are performed for a long time, a large amount of the regenerator must be filled in the cold storage main body, and there is a problem that the storage capacity of the articles is reduced accordingly.

[0007] Therefore, as a cool insulation structure of the cool box body, a compressor of a refrigerating cycle is driven by a battery power supply without using the regenerator, and the inside of the cool box body is kept cool by the refrigerating cycle during transportation. Insulated refrigerators have been proposed.

[0008]

In the latter cold storage compartment, a battery compartment for storing a battery and a machine compartment for accommodating a compressor, a condenser and the like are installed adjacent to the main body of the cold storage compartment. ing.

However, when the machine room and the battery room are installed on the side surface of the cool box main body, there is a problem that the loading space of the transport vehicle is reduced by the installation space of the machine room and the battery room. ing.

[0010] In both the former and the latter, when a large number of articles are loaded around the battery compartment, the replacement or charging of the battery is very troublesome. .

In view of the above-mentioned conventional problems, an object of the present invention is to provide
An object of the present invention is to provide an in-vehicle cool box that can effectively use a loading space of a transport vehicle and that can easily replace or charge a battery even when there are a large number of loads.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a vehicular cold storage according to claim 1 which accommodates articles and has a heat insulating property provided with an evaporator which is a component of the cooling device. A cool room main body, a machine room in which a compressor, a condenser, a condenser fan, and the like, which are components of the cooling device, were installed, and a battery, which is a power supply for the compressor and the condenser fan, were detachably installed. A battery compartment is provided, and a machine compartment and a battery compartment are vertically installed on the rear upper surface of the cool box main body, and a battery outlet is provided on a front face of the battery compartment.

According to the first aspect of the present invention, since the machine room and the battery room are installed on the upper surface of the cool box main body, the loading space of the carrier of the transport vehicle is not narrowed by the machine room and the battery room. . Further, since the machine room is at the top, even when a large amount of articles are loaded on the transport vehicle and the bottom side of the cargo bed is full, the condensed heat can be discharged without any trouble. Further, since the battery can be taken out and stored in a portion where the articles placed on the carrier of the transport vehicle are not adjacent to each other, that is, on the upper surface of the cool box main body, the battery replacement and charging operation can be easily performed. Become.

According to a second aspect of the present invention, in the cold storage compartment for a vehicle according to the first aspect, the battery chamber is provided with a moving mechanism that can move in and out through a battery outlet.

According to the second aspect of the present invention, when the battery is exchanged and charged, the battery can be moved toward the front side of the cool box main body by the moving mechanism. Very easy.

[0016]

1 to 7 show an embodiment of an in-vehicle cool box according to the present invention. FIG. 1 is a perspective view showing a loaded state of the in-vehicle cool box, and FIG. 2 is an in-vehicle cool box. FIG. 3 is a perspective view of the cool box, FIG. 3 is a front view of the vehicle cool box showing the cool box body in cross section, FIG. 4 is a side view of the vehicle cool box showing the cool box body in cross section, and FIG. Perspective view showing the mechanism, FIG.
FIG. 7 is an enlarged cross-sectional view showing a main part of a battery moving mechanism, and FIG. 7 is a side view showing a loaded state of an in-vehicle cool box when a small vehicle is used as a transport vehicle.

As shown in FIG. 1, the in-vehicle cool box 1 is loaded and delivered on a carrier of a truck 2, and as shown in FIGS. 2 to 4, a rectangular heat insulating wall is formed. It has a cool box main body 3, a battery room 4 and a machine room 5 installed on the rear upper surface of the cool box main body 3, and the machine room 5 is stacked on the battery room 4.

The cool box main body 3 has a heat-insulating lid 6 at the top opening. The lid 6 has a hinge 6 a at a rear end thereof and is rotatable up and down. By opening and closing an upper surface opening of the cool box main body 3, articles are stored and taken out. In addition, while the iron piece 6b is provided on the front side of the lid 6, the magnet 6c is provided on the front plate 5a of the machine room 5, and when the lid 6 is opened, the iron piece 6b is attracted to the magnet 6c. The lid 6 is held in an open state. In addition,
During transportation of the in-vehicle cool box 1 and the like, the lid 6 is held in a closed state by a lock fitting 6d so as not to open.

A drain pipe 7 is provided on the bottom wall 3a of the cool box body 3.
Are connected, and the condensed water in the refrigerator is discharged outside. Further, on the inner wall surface of the cold storage main body 3, a net 8 in which wires are assembled in a grid is arranged to prevent contact between the articles stored in the refrigerator and the inner wall surface, and to supercool the articles and reduce the inner wall surface. To prevent sticking.

A pipe-on-seat type evaporator 9a, which is a component of the cooling device, is wound around the outer surface of the side wall 3b of the cool box main body 3.
As shown in FIG. 4, a compressor 9b, a condenser 9c, and a condenser fan 9d, which are components of the cooling device, are arranged. With such a cooling device, the refrigerant circulates in order from the compressor 9b → the condenser 9c → the expansion valve (not shown) → the evaporator 9a → the compressor 9b to keep the inside of the cool storage main body 3 cool. Further, near one side of the front plate 5a and the upper plate 5b of the machine room 5, air intake ports 10a, 10
b, while the other side of the upper plate 5b of the machine room 5 is
Similarly, an air outlet 11 composed of a number of slits is provided. Thereby, the air for heat exchange is sucked into the machine room 5 from the air suction ports 10a and 10b by the driving of the condenser fan 9d, and the air exchanges heat with the condenser 9c and is discharged from the air discharge port 11. . Further, the compressor 9b and the condenser fan 9d are driven by
In consideration of the rechargeable battery 12 installed in the inside, a DC motor built-in
An AC motor driven by the converted AC current by converting the DC current from the inverter into an AC by an inverter.

In the battery chamber 4, a battery 12 having the above-described horizontally elongated substantially rectangular shape, a moving mechanism 13 for moving the battery 12 in the front-rear direction, and a control box in which control elements for controlling driving of various devices are incorporated. 14 are installed. The front face of the battery compartment 4 is a take-out port 4a for charging or replacing the battery 12, and a detachable opening / closing door 4b is installed at the front face opening of the battery compartment 4.

The structure of the moving mechanism 13 will be described with reference to FIGS. The moving mechanism 13 includes the battery 12
The battery 12 is placed on each of the left and right sides, and the storage plate 131 on which the battery 12 is mounted has a substantially U-shaped cross section, and the bottom plate 4c of the battery chamber 4 is provided with a gap outside the storage plate 131. The support plate 132 screwed and the storage plate 13
It comprises a sliding mechanism 133 interposed between the first side plate 131a and the support plate 132, and a lock plate 134 for restricting and releasing the movement of the storage plate 131.

The housing plate 131 places the battery 12 on its horizontal surface, locks the band 15 wound around the battery 12, and holds the battery 12 in the housing plate 131. In addition, the storage plate 131
The upper end of the side plate 131a has a locked portion 131b bent in a substantially L-shaped cross section, and the locked portion 131b is in a state close to the support plate 132.

The supporting plate 132 has a receiving plate 1 at its rear end.
The stopper plate 132a is bent toward the moving path of the side plate 131a, and one end thereof is pivotally supported near the front end thereof, and the distal end is similarly formed on the side plate 131a (the locked portion 131a).
The lock plate 134 bent toward the moving path b) is provided. The storage plate 131 is formed by the stopper piece 132a.
The rearward movement of the (battery 12) is restricted, and the storage plate 131 (battery 1) is also
2) Forward movement is restricted. The battery 12 is held in the battery chamber 4 without moving back and forth due to these regulating actions.

The sliding mechanism 133 includes a pair of rails 133a, 133b extending in the front-rear direction, and a slider 133c interposed between the rails 133a, 133b.
And a number of steel balls 133d,
The upper and lower ends of each of the rails 133a and 133b and the upper and lower ends of the slider 133c are formed to be curved so as to face each other, and a steel ball 133d is interposed in the facing portion. Also, the back of one rail 133a is
The rear surface of the other rail 133b is fixed to the support plate 132. Thereby, as shown in FIG. 5, the battery 12 is supported by the support plate 132 via the housing plate 131, and the battery 12 can be moved forward with the lock plate 134 released.

Next, the operation of taking out and storing the battery 12 will be described. When removing the battery 12 stored in the battery chamber 4, first, the opening / closing door 4b on the front of the battery chamber 4 is removed, and the outlet 4a is opened. Next, the band 15 is removed from the battery 12, and the lock plate 134 is further turned as shown by a two-dot chain line in FIG. Thereafter, as shown by the two-dot chain line in FIGS. 4 and 5, the storage plate 132 may be pulled out forward, and the handle 12 a of the battery 12 may be gripped and removed from the storage plate 132. On the other hand, when the battery 12 is stored in the battery chamber 4, the operation opposite to that described above is performed.
That is, the battery 12 is placed on the housing plate 132 pulled out forward, and is pushed into the battery chamber 4. Next, the lock plate 134 may be locked to the locked portion 132 of the storage plate 132 as shown by the solid line in FIG. 5, and the band 15 may be wound around the battery 12.

As described above, the battery compartment 4 in which the battery 12 is housed is installed on the rear upper surface of the cold storage main body 3 in the cold storage compartment 1 according to the present embodiment, and the battery 12 is replaced and charged. The space, that is, the upper surface of the cool box main body 3 is a part where the articles placed on the carrier of the transport vehicle do not adjoin, and the battery 12 is pulled out by the moving mechanism 13 to the near side. Can be replaced or charged, so that replacement of the battery 12 can be performed very easily. Thereby, the replacement work of the battery 12 is reduced in a short time, which is suitable for long-time transportation of the in-vehicle cool box 1.

Further, since the machine room 5 is installed above the battery room 4, heat generated in the compressor 9b and the condenser 9c is cut off by the battery room 4 and is directly conducted to the cool box main body 3. Never do. In addition, since the exhaust heat from the machine room 5 is discharged above the cool box main body 3, the thermal influence on the cool box main body 3 due to the discharged heat can be reduced. Furthermore,
Since the machine room 5 is located at the uppermost position of the in-vehicle cool box 1 and is greatly separated from the floor of the cargo bed, dust on the floor is not sucked into the air inlets 10a and 10b of the machine room 5. In addition, the adhesion of dust to the condenser 9c is reduced.

Further, since the battery room 4 and the machine room 5 are installed on the upper surface of the cool box main body 3, the loading space of the loading platform of the truck 2 is not narrowed by the battery room 4 and the machine room 5.

The in-vehicle cool box 1 is small in size as a whole, and can be loaded in a small transport vehicle 2 'as shown in FIG. Here, when loading into the transport vehicle 2 'of the in-vehicle cool box 1, the front side is loaded so as to face the door 2a of the vehicle 2'. Thus, the battery 12 can be replaced from outside the vehicle with the door 2a opened, or the charging operation can be performed with the battery 12 loaded.

In the above-described embodiment, an example in which a sliding mechanism is employed as the moving mechanism 13 has been described. However, the present invention is not limited to this, as long as it can move back and forth of the battery 12.

[0032]

As described above, according to the first aspect of the present invention, since the machine room and the battery room are installed on the upper surface of the cool box body, the loading space of the carrier of the transport vehicle is reduced by the machine room and the battery room. There is no narrowing due to the battery compartment. In addition, since the battery can be taken out and stored at a portion where the articles placed on the carrier of the transport vehicle are not adjacent to each other, that is, at the upper surface of the cool box main body, the battery replacement and charging operation can be easily performed. Become.

According to the second aspect of the present invention, the battery can be moved toward the front side of the cool box main body by the moving mechanism, and the replacement and charging of the battery becomes very simple.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a loading state of an in-vehicle cool box;

FIG. 2 is a perspective view of an in-vehicle cool box;

FIG. 3 is a front view of the in-vehicle cool box showing the cool box body in cross section.

FIG. 4 is a side view of the in-vehicle cool box showing the cool box body in cross section.

FIG. 5 is a perspective view showing a battery moving mechanism.

FIG. 6 is an enlarged sectional view showing a main part of a battery moving mechanism.

FIG. 7 is a side view showing a loaded state of the in-vehicle cool box when a small vehicle is used as a transport vehicle.

[Explanation of symbols]

1 ... insulated refrigerator for car, 3 ... body of refrigerator, 4 ... battery room,
4a ... take-out port, 5 ... machine room, 9a ... evaporator, 9b ...
Compressor, 9c ... condenser, 9d ... condenser fan, 12 ...
Battery, 13 ... moving mechanism.

Claims (2)

[Claims] An insulated cold storage main body in which an article is accommodated and an evaporator as a component of a cooling device is installed, and a compressor, a condenser, a fan for a condenser and the like as components of the cooling device are installed. And a battery chamber in which a battery serving as a power supply for the compressor and the condenser fan is detachably mounted. On the rear upper surface of the cool box main body, the machine chamber and the battery chamber are vertically moved. Wherein the battery compartment is provided at a front surface of the battery compartment, and an outlet for the battery is provided at the front of the battery compartment. 2. The in-vehicle refrigerator according to claim 1, wherein a moving mechanism is provided in the battery chamber so that the battery can be moved into and out of the battery chamber through the outlet.