JPH0454010Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a refrigerated vehicle, and particularly to a device for adjusting the temperature of the cargo compartment thereof.

[Prior Art] Many refrigerated vehicles are used which have a structure in which an evaporator equipped with a fan is provided on the upper part of the wall of the cargo compartment to blow cold air into the cargo compartment. In order to reduce temperature differences in each part of the cargo compartment, the structure has been designed to distribute cool air evenly. With this structure, only articles that have the same optimum temperature can be transported, and a refrigerated vehicle that can simultaneously transport multiple types of articles that have different optimum temperatures is required.

To meet this requirement, for example, the luggage compartment is divided into two compartments, front and rear, by an insulating partition, one is equipped with an evaporator to form a freezing compartment, the other is used as a cold storage compartment, and the partition wall connects both compartments. Some devices have a structure in which a ventilation hole is provided, and the ventilation hole is opened and closed at appropriate times to supply and shut off cold air to the cold storage chamber, thereby maintaining the cold storage room temperature around a predetermined value.

[Problems to be Solved by the Present Invention] However, the above structure controls only two types of temperature: freezing and cold storage. An object of the present invention is to provide a room temperature adjustment device for a refrigerated vehicle that is capable of controlling not only two types of different temperatures but also a wider variety of different temperatures and transporting various articles at the same temperature at the same time.

[Means for solving the problem] In the present invention, a shelf board is provided in the cargo compartment of a refrigerated vehicle to form a plurality of vertically divided compartments, and cool air is directed rearward to the upper part of the front wall of the uppermost compartment. An evaporator is installed to blow out. The front and back length of the shelf board is made shorter than the length of the luggage compartment, and the gap created between the front and rear ends of the shelf board and the front and rear walls of the luggage compartment forms a cold air circulation opening, and The plate is characterized by being able to slide in the front and rear directions, thereby making it possible to adjust the width between the cold air vents.

[Operations and Effects] The cold air blown backward into the uppermost divided chamber is sent to the lower divided chamber from the cold air outlet on the rear wall side, and is led out from the cold air outlet on the front wall side. The amount of cold air sent to the divided chambers can be adjusted by sliding the shelf board back and forth and changing the width of the cold air outlet on the rear wall, and the temperature of the divided chambers changes the amount of cold air sent. This can be adjusted.

According to the present invention, the shelves are not only one level but also two or more to form three or more divided chambers, and by changing the width of the cold air ventilation opening of each shelf, each divided chamber is The temperature can be controlled to different temperatures.

[Example] The figure shows an example of the present invention. Luggage compartment 1
The outer wall of the luggage compartment 1 is made of a heat insulating board, and as shown in FIGS. 2 and 3, a partition wall 3 made of a heat insulating board is fixedly installed in the center of the luggage compartment 1, and the luggage compartment 1 is divided into left and right sides.

The structures of the left and right sides are the same, and to explain one side, guide rails 4a and 4b are attached to the partition wall 3 and the cargo compartment side wall 2a at corresponding height positions in two stages, upper and lower, in the front-rear direction. These guide rails 4a, 4b are provided with shelf boards 5a, 5b, which are heat insulating boards, respectively, so as to be slidable and removable in the front and back direction. This forms upper, middle, and lower divided chambers 6A, 6B, and 6C. Therefore, a total of six divided chambers are formed on the left and right sides. As shown in FIGS. 1 and 3, the rear opening of the luggage compartment 1 is provided with a double door made of heat insulating plates. That is, the rear opening of each of the divided chambers 6A, 6B, and 6C is provided with a single-opening small door 7 for opening and closing the opening, and a double-opening rear door 8 for opening and closing the entire rear opening.

Each shelf board 5a, 5b has the same size and shape, and its length in the front and back direction is shorter than that of the luggage compartment 1. As a result, each shelf board 5a, 5b as shown in FIG.
At the rear end, there is a gap between the small door 7 that forms the rear wall of the cargo compartment.
9a and 9b are formed, and gaps 9a' and 9b' are formed at the front ends of the shelf plates 5a and 5b and between them and the front wall 2b of the luggage compartment, thereby forming cold air circulation ports.

An evaporator 10 of a refrigerator is installed in the upper center of the front wall 2b of the cargo compartment so as to span the left and right sides of the partition wall 3, and a fan (not shown) directs the upper part of the upper divided compartment 6A toward the rear to blow cool air. It's designed to blow out.

In the cargo compartment of the refrigerated car configured as above,
When transporting articles, cool air is sent from the evaporator 10 backward through the upper divided chamber 6A along the upper wall 2c of the cargo compartment. This cold air hits the small door 7, a part of which is reversed and flows forward in the divided chamber 6A along the shelf board 5a, and the other part passes through the cold air circulation port 9a. A part of the passed cold air flows forward in the middle divided chamber 6B along the shelf board 5a, and the other part passes through the cold air circulation opening 9b. The cool air that has passed through is sent along the cargo compartment bottom wall 2d to the lower divided compartment 6c.
flows forward. Middle and lower divided rooms 6B,
The cold air of 6C is sent to the front cold air distribution ports 9a' and 9, respectively.
It flows upward through b′. In this way, the cold air is distributed to each divided chamber and cooled.

In this case, for example, as shown in FIG. 3, if each shelf board 5a, 5b is slid back and forth and the width between the rear cold air vents 9a, 9b is set to 9a>9b, each divided chamber 6A, 6B is , 6C is 6A>6B>6C, and correspondingly, the cooling temperature of the divided chamber 6A is the lowest, and the cooling temperature of the divided chamber 6A is the lowest, and the divided chamber 6B, 6C is
can be increased in the order of In this way, a total of six types of room temperature adjustment are possible for the left and right sides.

According to the present invention, the divided compartments formed in the cargo compartment of the refrigerated vehicle can be adjusted to different temperatures, and two or more types of articles that require different temperature control can be mixed and delivered.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention. Fig. 1 is a rear perspective view of a refrigerated vehicle, Fig. 2 is a diagram showing the divided structure of the cargo compartment, and Fig. 3 is a longitudinal section of the cargo compartment and the flow of cold air. FIG. 1... Luggage compartment, 3... Partition wall, 4a, 4b... Guide rail, 5a, 5b... Shelf board, 6A, 6B,
6C...Divided room, 7, 8...Door, 9a, 9b, 9
a', 9b'...cold air outlet, 10...evaporator.

Claims (1)

[Scope of utility model registration request] Inside the cargo compartment of a refrigerated vehicle, an evaporator is installed at the top end of the front wall to blow out cold air toward the rear, while a shelf board is installed inside the cargo compartment to divide the compartment into upper and lower sections. A space is formed between each of the front and rear walls of the cargo compartment to serve as a cold air vent, and the shelf board is slidable in the front and back direction so that the width between the cold air vents can be adjusted. A room temperature adjustment device for refrigerated cars.