JPH0341261Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a cooling device, and in particular, to a cooling device that has a plurality of cold storage chambers, each of which is maintained at a different temperature, and goods are transported in a cooled state. Relating to a cooling device suitable for

[Problems to be solved by conventional techniques and ideas]

Traditionally, food that requires cooling has been transported in large quantities,
Regardless of the size of the order, it is carried out using dedicated freezers and refrigerators.

However, food, especially fresh food, generally requires different temperatures to maintain its freshness; for example, it is divided into frozen (-18°C or less), chilled (0 ± 2°C), and refrigerated (5 ± 2°C). . On the other hand, in small-lot food transportation such as home delivery, there are many types of food, and the quantity fluctuates significantly. However, when transporting using the above-mentioned dedicated reefer trucks and refrigerators, the equipment is fixed, so there is no flexibility in selecting temperature and storage capacity, and there are problems with the efficiency of freezing or refrigeration operation and the economical efficiency of transportation. There was a problem that led to a decline.

Therefore, an object of the present invention is to provide a cooling device that has a plurality of cold storage chambers having different cooling temperatures and can change the volume of each cold storage chamber.

[Means for solving problems]

According to the present invention, the interior of the cooling box is partitioned into a plurality of chambers by one or more partition plates, and each partitioned chamber is divided into a chamber for storing the cooler and motor fan and a cold storage chamber by partition walls. , the partition plate facing the cold storage room is movable along the inner wall of the cold storage room and the partition wall in a direction to reduce or expand the volume of the cold storage room,
Each of the partition walls outside the movable range of the partition plate is provided with an air inlet and an air outlet, and a circulation ventilation path is formed in which the air in the cold storage chamber passes through the cooler and returns to the cold storage chamber. A cooling device characterized by forming a plurality of cooling spaces is obtained.

[Function] The cooling device according to the present invention maintains multiple cold storage compartments at different temperatures by controlling the operating state of the cooler corresponding to each cold storage compartment, and changes the volume of the cold storage compartment by changing the position of the partition plate. is variable.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

In this cooling device, a box 1 made of a heat insulator with an open front is vertically partitioned into three chambers by two sets of fixed partition plates 11a, 11b and movable partition plates 12a, 12b. Each chamber also has a fixed partition plate 11a and a movable partition plate 12a for the topmost chamber.
Due to the partition wall 13A provided at the boundary position with
Cold storage room 1A, motor fan 14A and cooler 15
It is divided into a ventilation passage chamber 2A and a ventilation passage chamber 2A. The remaining rooms have the same configuration, so below,
Only the top chamber will be described.

The motor fan 14A is provided in the chamber 2A via a fan casing. The cooler 15A is
It is a fin-type refrigerant evaporator, and when its ventilation cross-sectional area is smaller than the ventilation path cross-sectional area of the chamber 2A as shown in the figure, it is attached to the chamber 2A via the wall plates 16A and 17A. The partition wall 13A is provided with an inlet 18A and an outlet 19A on both sides thereof. In this way, the cold storage room 1A → suction port 18
A ventilation circulation circuit is formed such as A→motor fan 14A→cooler 15A→air outlet 19A→cooling chamber 1A.

The movable partition plate 12a is provided so as to be slidable up and down within a range that does not cover the inlet and outlet ports of the partition walls 13A and 13B. The simplest example of making the movable partition plate 12a vertically slidable is to attach shelf pillars extending vertically to the inner walls on both sides of the box body 1, and to install shelf pillars at intervals in the vertical direction. The movable partition plate 12a may be supported by a hook that is detachable from the hook hole.

The coolers 15A, 15B, and 15C are connected in parallel to a separate refrigeration circuit. Simply put, the refrigerant from the refrigerant compressor is condensed and then divided into coolers 15A, 15B, and 15C through capillary tubes, and the refrigerant vaporized in each cooler is combined and compressed through the accumulator. Return to machine. Then, solenoid valves are installed in the inlet side refrigerant pipes of the coolers 15A, 15B, and 15C, and the solenoid valves are controlled on and off using the detection signals of the temperature sensors installed in the cold storage chambers 1A, 1B, and 1C. The room can be maintained at the desired temperature. For example, if you refrigerate 1A of cold storage room (5±2
It is easy to make the cold storage room 1B into a chilled (0±2°C) room and the cold storage room 1C into a freezing (-18°C or less) room. Moreover, all the rooms can be kept at the same temperature or can be kept at two different cold storage temperatures. Moreover, each cold storage room has movable partition plates 12a, 1
By changing the position of 2b, the volume can be easily changed.

It can be said that this cooling device is particularly suitable for on-vehicle use. In other words, it is only necessary to make it possible to receive the supply by diverting a part of the refrigerant from the existing cooler unit in the vehicle.This can be done by changing a part of the refrigerant piping of the cooler unit and connecting it to each cooler 15A to 15C. Just do it. Of course, a refrigeration circuit dedicated to this cooling device may be installed in the vehicle. On the other hand, if you use it for stationary use rather than for in-vehicle use, like the conventional freezer/refrigeration case,
A machine room may be formed in the lower part of the box 1 to house components such as a refrigerant compressor and a refrigerant condenser.

In this way, the present cooling device can be applied to both in-vehicle and stationary use depending on how it is combined with the refrigeration circuit, and has high versatility.

[Effect of idea]

As explained above, according to the present invention, it is possible to prepare a plurality of cold storage chambers with different temperatures depending on the type and quantity of items to be cooled, and furthermore, the volume of each cold storage chamber can be freely changed. A highly versatile cooling device can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of a cooling device according to the present invention, with a part cut away and seen through to make the main parts easier to understand, and FIG.
A vertical cross-sectional view of a portion corresponding to. In the figure, 1A, 1B, 1C are cold storage rooms, 11a, 1
1b is a fixed partition plate, 12a and 12b are movable partition plates, 13A to 13C are partition walls, 14A is a motor fan, 15A to 15C are coolers, 18A is a suction port, and 19A to 19C are air outlets.

Claims (1)

[Scope of utility model registration request] A fixed partition wall that extends vertically inside the cooling box.
and a second chamber for cold storage, and the divided second cold storage chamber is horizontally partitioned into a plurality of chambers by one or more movable partition plates; The chamber is horizontally partitioned into a plurality of storage chambers by one or more fixed partition plates, and a cooler and a motor fan are housed in each chamber, and the cooler and motor fan are arranged horizontally in parallel and are attached to the partition wall. is provided with an air outlet and an air inlet at positions corresponding to the leeward side of the cooler and the motor fan, respectively,
A circulating ventilation path returning to the cold storage room is formed to form a plurality of independent cooling spaces, and the movable partition plate
A cooling device characterized in that the cooling device is movable in a vertical direction to reduce or expand the volume of the cold storage room along the inner wall of the cold storage room and the fixed partition wall within a range that does not cover the air outlet and the air intake port. .