JPS5810945Y2 - refrigerator car freezer - Google Patents

Description

[Detailed explanation of the invention] This invention uses a plurality of materials with good thermal conductivity in the freezer of a refrigerated car to construct a plurality of chambers with different temperatures and no air circulation between the chambers. A partition plate and
A partition plate made of heat insulating material is provided on the side closest to the door.

Conventionally, in the freezer of a refrigerated car, in order to transport items that require different storage temperatures, such as meat and vegetables, in order to separate the interior of the refrigerator, a curtain or the like is installed in the middle of the freezer A, as shown in Figure 1. The temperature difference between the two rooms can be adjusted by installing a wall (not shown) in the middle to separate the two rooms, and installing a fan and a ventilation hole in the wall.

Both the methods using curtains, etc., and the methods using walls equipped with fans and vents, the separated rooms allow for air exchange, and therefore bacteria are also exchanged at the same time, especially for meat and vegetables. When vegetables are transported at the same time, bacteria from the meat can adhere to the vegetables, creating a hygiene problem.

Additionally, when the door is opened, the previously cooled air may be exchanged with outside air, causing a change in the temperature inside the freezer, which has a negative impact on the transported goods. There was also the problem of an increase in

Therefore, this idea uses two types of partition plates,
The partition plate close to the evaporator side is made of a material with good thermal conductivity, and the partition plate close to the door is made of a heat insulating material.These partition plates create a freezer into multiple chambers with different temperatures. The reason why the board is made of a material with good thermal conductivity is to make it easier for the separated rooms to exchange heat through the partition board.The reason why the partition board is made of insulation material on the side near the door is to make it easier to exchange heat between the separated rooms. This is to prevent cold air from escaping even when the door is opened (the room closest to the door), and multiple rooms are completely separated, with no air circulation between them.
The movement of bacteria is also prevented.

Examples of this invention will be described below with reference to the drawings.

FIG. 2 shows a cross-sectional view of the freezer 1 of the refrigerated car of this invention. The freezer 1 has a large chamber surrounded by a heat insulating material, and a door 2 for opening and closing is provided at the rear thereof.

Inside the freezer 1, there is an evaporator 3 of the refrigeration system on the driver's seat side.
The air inside the freezer 1 is cooled by the evaporator 3.

The refrigerant compressor 4 of the refrigeration system is rotated by a driving engine (not shown), the refrigerant is pressurized, heat is radiated in a condenser 5 provided below the vehicle body, and the refrigerant is condensed.
The evaporator 3 via the expansion valve 6
The superheated refrigerant is then sent to the evaporator 3, where it absorbs the heat inside the storage 1 and evaporates.The superheated refrigerant is sucked into the compressor 4, and the above-mentioned circulation is repeated again.

Inside the freezer 1, two partition plates 7 with good heat conduction and one partition plate 8 made of heat insulating material are provided.
There are three separate rooms: a low-temperature chamber C1, a medium-low temperature chamber D, and a medium-temperature chamber E.

The partition plate 7 with good thermal conductivity is made of a metal with good heat conduction (for example, aluminum) (specific explanation will be given below), and the partition plate 7 separates the low temperature chamber C from the medium and low temperature chambers and between the medium and low temperature chambers. Heat exchange between the greenhouse and the medium greenhouse E is carried out.

In order to change the heat exchange rate of the partition plate 7, fans 9 are provided in the medium/low temperature room and the medium temperature room E.

Therefore, by controlling the fan 9, the temperature of the room E can be changed to some extent.

Although the partition plates 7 and 8 are stored in the freezer 1,
They are movable and easy to fix, and have a structure that opens the center of thought.

For example, this embodiment is shown in FIGS. 3 and 4.

In FIGS. 3 and 4, the partition plates 7 and 8 consist of two chamber side plates 10a and 10b parallel to both side wall surfaces of the freezer, and a span plate 11 and a guide portion 12 provided between these, and the chamber side plate 10a. , 10b is made of metal, and has a hollow chamber 10C inside, and a guide portion 1 as described below at the upper end.
Both ends of 2 are provided.

The guide part 12 is formed into a cross-sectional opening shape with a chamber 12a inside, and a rail 12C having a groove 12b in the central longitudinal direction is provided below. )
No. 13 hanging tools 13a are inserted and moved inside, so that the shutter 13 can be moved while being suspended.

As described above, this guide portion 12 is provided with the chamber side plates 10a, 1
The shutter 13 can be completely housed inside the room side boards 10a, 10b while being suspended from the vertical opening 10d of the room side boards 10a, 10b. .

Therefore, when the shutter 13 is housed in the room side panels 10a and 10b, there are few things that protrude into the warehouse 1, and there is no inconvenience when taking out and taking out the stored items.

The shutter 13 is provided with a hanging tool 13a at the upper end, and moves suspended within the guide part 12.For the double-opening type, which is joined at the center of the shutter 13, a joining piece 14 is provided at the end, and the upper end is put into the guide part 12 and suspended,
Both of them are connected by suitable means and configured to be easily opened, for example by attaching a magnet to one and a metal piece to the other.

Note that this shutter 13 is a partition plate 7 of a type with good heat conduction.
In this case, a material with good heat conductivity such as aluminum is used, and a fan (not shown) is used to further increase the heat exchange rate.
are provided on the room side plates 10a, 10b or the span plate 11, and the partition plate 7 is exposed to air to promote the replacement rate.

Furthermore, in the case of the partition plate 8 made of a heat insulating material, materials such as synthetic resin and synthetic fiber are used.

The seal plate 19 is provided on the upper surface of the guide part 12, contacts the upper surface of the interior of the storage 1, and prevents air from flowing between the chambers.

The wheels 15 are connected to the room side plate 10a via brackets 16.

10b, and the wheels 15 are in contact with the floor surface.

This wheel 15 is provided with a stopper 17, and the stopper 1
7 is rotatably attached to the shaft 15a of the wheel 15 via an arm 17a, and the stopper 17 is the chamber side plate 10a,
10b is tensioned with a fixed spring 18.

As shown in the figure, when the stopper 17 enters below the wheel 15, the wheel 15 rises from the floor surface and the partition plates 7 and 8 are fixed, and when the stopper 17 is rotated as shown by the two-dot chain line, the wheel 15 is lifted off the floor. The partition plate 7.8 is in contact with the floor surface and can be moved freely.

Therefore, the partition plates 7 and 8 can be moved within the freezer 1 as appropriate, and the size of the chamber formed by them can be freely varied as necessary.

In this embodiment, two partition plates 7 with good thermal conductivity are provided, but one or more partition plates 7 may be used, and the number may be increased or decreased as appropriate depending on the needs of rooms with different temperature differences. One partition plate 8 may be provided on the door side.

In this way, this invention provides one or more partition plates made of a material with good thermal conductivity in the freezer of a refrigerated car, and a partition plate made of heat insulating material on the side closest to the door, thereby reducing the temperature difference between multiple parts. Different chambers can be formed and these chambers can be completely separated, eliminating air circulation between the chambers and preventing the exchange of bacteria.

Furthermore, the number of compartments made up of partition plates is arbitrary, and the size of the compartment can be changed as appropriate depending on the location of the partition plate in the freezer.Moreover, if there are few items, the partition plate can be moved to the driver's seat side. It is possible to reduce the chamber size, reduce the operating rate of the compressor, and reduce fuel consumption.

Furthermore, even when the door is opened, the inside of the refrigerator is separated by a partition plate, so the degree to which cold air escapes to the outside can be reduced, and temperature changes due to opening and closing of the door can be reduced.

Furthermore, since the central part of the partition plate can be opened and closed freely, it is possible to easily take items in and out of the low temperature chamber closest to the evaporator.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional freezer in a refrigerated car, Fig. 2 is a sectional view of the freezer in a refrigerated car showing this invention, Fig. 3 is a partially cutaway perspective view of a partition plate, and Fig. 4 is a wheel FIG. 2 is an enlarged view of the main parts of the attached state. 1... Freezer, 3... Evaporator,
7... Partition plate with good heat conduction, 8... Partition plate made of heat insulating material, 13... Shutter.

Claims (1)

[Scope of utility model registration request] 1. In addition to installing one or more partition plates made of a material with good thermal conductivity inside the freezer, a partition plate made of heat insulating material should be provided on the side closest to the door. A freezer for a refrigerating car, characterized by comprising a chamber with no circulation. 2. A freezer for a refrigerated vehicle according to claim 1, wherein the partition plate with good heat conductivity is movable and fixed. 3. A freezer for a refrigerated vehicle according to claim 1, wherein the partition plate with good heat conduction is capable of opening and closing at its center. 4. A freezer for a refrigerated vehicle according to claim 1, wherein the partition plate of the heat insulating material is movable and fixed. 5. A freezer for a refrigerated vehicle according to claim 1, wherein the partition plate of the heat insulating material is capable of being opened and closed at its central portion.