JPS621666Y2 - - Google Patents

Description

[Detailed description of the invention] This invention forms an evaporator chamber inside the side wall of a refrigerated container, specifically a container box with a heat-insulating structure, and houses an evaporator and electric parts such as an electric heater inside the chamber. The present invention relates to a refrigerated container in which the side wall is provided with a through hole that opens to the outside, and a service door is attached to the through hole.

Generally, a refrigerated container configured as described above is
A service door frame is fitted into the through hole, the service door is supported in the door frame, a relay terminal box is provided in the door frame, the relay terminal is attached to the terminal box via a mounting plate, and the relay terminal is attached to the evaporator chamber. Electrical wires leading from the outside of the container box are relayed and wired to electrical components such as an electric heater.

However, since the relay terminal box is provided in the service door frame, the structure of the service door frame becomes complicated, and when servicing the relay terminal, the relay terminal box is provided in the service door frame. Because it is attached to the terminal box via the mounting plate,
It is necessary to remove the mounting plate after opening the service door, resulting in poor service efficiency.

The present invention was devised in view of the above-mentioned conventional problems, and it is possible to simplify the structure of the service door frame and to easily and easily service the relay terminal by simply opening the service door. The aim is to provide refrigerated containers with

That is, the present invention forms an evaporator chamber inside the side wall of a container box with a heat-insulating structure,
In a refrigerated container in which an evaporator and electrical parts are housed in the chamber, a through hole is provided in the side wall, and a service door is attached to the through hole, an inner wall of the side wall defining the chamber is provided with a through hole in the through hole. forming a recess into which the recess is inserted; an opening communicating with the through hole is provided in the bottom wall of the recess; and a cover plate is attached to the opening on the inner wall side of the recess for closing the opening; A relay terminal box is formed by the cover plate and the recess, and a relay terminal board for the electrical component is attached to the outer surface of the cover plate facing the inside of the recess, and the terminal board is connected to the terminal box. It is characterized by the fact that it is made to look like it is housed inside.

Embodiments of the container of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a container box with a heat-insulating structure, and an evaporator chamber 3 is formed inside a side wall 2 of the box 1, and this chamber 3 is equipped with an evaporator 4 and an electric heater 5. Electrical parts such as a fan motor 6 and the like are installed inside.

Then, through holes 7 and 8 are provided in the side wall 2 below the evaporator 4 at a position corresponding to the electric heater 5 and at a position corresponding to the fan motor 6, respectively. Service doors 9 and 10 are attached to holes 7 and 8, respectively.

The side wall 2 is composed of an outer wall 21, an inner wall 22 defining the chamber 3, and a heat insulating wall 23 interposed between the inner and outer walls 21, 22,
The through hole 7 provided at a position corresponding to the electric heater 5 forms one elongated hole 71 across the outer wall 21 and the heat insulating wall 23, and also forms a long hole 71 in the inner wall 22.
As shown by the dotted lines in FIG. An opening 25 is formed in the bottom wall 24a of the recess 24 and communicates with the long hole 71.
It forms.

The service door frame 11 for attaching the service door 9 is fitted into the elongated hole 71 formed in the outer wall 21 and the heat insulating wall 23, and the inner wall side opening 26 of the recessed portion 24, that is, the The opening 26 to the chamber 3 includes a
The cover plate 12 that closes the door is attached via packing (not shown).

The service door frame 11 has a trough-like packing receptacle 11a continuously provided on the inner surface of the frame, and a frame-shaped packing 13 having a circular cross section is fitted into the packing receptacle 11a to hold it.

The cover plate 12 has a rectangular shape with a protruding piece 12a at the lower edge as shown in FIGS. The terminal box A is formed by the cover plate 12 and the recessed part 24, and is detachably attached to the inner wall 22 by means of attachment means such as screws, leaving a distance d that allows the electric wires to pass through the component. Yes, the heater 5 is installed on the cover plate 12.
A relay terminal board 14 for electrical components such as the above and a connector 16 for connecting a cable 15 connected to a power source are attached, and the terminal board 14 is accommodated in the terminal box A.

Further, the recessed portion 2 in the service door 9
4 is provided with a recess 9a slightly larger than the recess 24, and the flat packing 17 is held in the recess 9a so as to be in close contact with the bottom wall 24a of the recess 24. There is. When the service door 9 is fitted into the service door frame 11 and the through hole 7 is closed, the packing 13 held on the service door frame 11 is brought into close contact with the packing 13, and the service door 9 is held in the recess 9a. Patsukin 17
However, by coming into close contact with the bottom wall 24a of the recessed portion 24, communication with the outside of the chamber 3 is reliably blocked.

Further, each wire from the cable 15 is connected to the terminal board 14 via the connector 16, and an electric wire (not shown) extending from the terminal board 14 is connected to the terminal board 14.
It is drawn out into the chamber 3 from the distance d and connected to an electric heater 5 or the like installed inside the chamber 3.

In FIG. 1, 30 is a machine room formed isolated below the evaporator chamber 3;
Refrigeration equipment (not shown) such as a compressor and a condenser is installed inside.

Further, 31 is an air inlet for introducing outside air into an air-cooled condenser installed in the machine room 30, and 32 is an air outlet.

Further, 33 is an electrical component box provided adjacent to the machine room 30.

Therefore, in the above configuration, when servicing the electric heater 5 and relay terminal board 14,
Even if the service cannot be performed from inside the container box 1, the service can be performed by removing the service door 9. When servicing the electric heater 5, the elongated hole opened by removing the service door 9 can be used to service the electric heater 5. 72 and 73, and when servicing the relay terminals of the relay terminal board 14, it can be easily done through the opening 25 of the recessed portion 24.

That is, the relay terminal board 14 is connected to the recessed part 24.
and a cover plate 12, and this terminal box A is opened through the opening 25 when the service door 9 is opened. Even without removing the plate 12, each relay terminal of the terminal board 14 can be serviced while it is still attached. Therefore, the relay terminal can be serviced by simply opening the service door 9, which improves the work efficiency. Further, each relay terminal of the terminal board 14 can be easily serviced from inside the container box 1 by removing the cover plate 12 and utilizing the bending of the cable 15.

As described above, the present invention forms a recess 24 in the inner wall 22 constituting the side wall 2 of the container box 1, which protrudes into the through hole 7 for attaching the service door 9, and an opening on the inner wall side of the recess 24. The relay terminal box A is formed by the cover plate 12 attached to the cover plate 26, and the relay terminal board 14 attached to the outer surface facing the inside of the recessed part 24 of the cover plate 12 is housed in the terminal box A. The structure of the service door frame 11 that supports the service door 9 is as follows.
In addition, even when servicing the relay terminals of the relay terminal board 14, it can be done by simply opening the service door 9, and it can be attached to the cover plate 12. There is no need to remove the relay terminal board 14 each time servicing is performed, and therefore the workability of servicing the relay terminal can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the container of the present invention, Fig. 2 is a partial sectional front view with a part cut away, Fig. 3 is an enlarged sectional view of the main part, and Fig. 4 is a lid plate and a front view. An explanatory view showing the relationship with the recessed portion, and FIG. 5 is a perspective view of the relay terminal board attached to the cover plate. 1... Container box, 2... Side wall, 3...
Evaporator chamber, 4... Evaporator, 5... Electric heater, 7... Through hole, 9... Service door, 12...
...Lid plate, 14...Relay terminal board, 22...Inner wall, 2
4... Recessed portion, 24a... Bottom wall, 25... Opening, 26... Inner wall side opening, A... Relay terminal box.

Claims (1)

[Scope of utility model registration request] An evaporator chamber 3 is formed inside the side wall 2 of the container box 1 having a heat insulating structure, an evaporator 4 and electric parts are housed in the chamber 3, and a through hole 7 is provided in the side wall 2. In a refrigerated container in which a service door 9 is attached to a refrigerated container 7, a recessed portion 24 that projects into the through hole 7 is formed in the inner wall 22 of the side wall 2 defining the chamber 3, and a bottom wall 24a of the recessed portion 24 is formed. , an opening 25 communicating with the through hole 7 is provided, and the recess 24 is provided.
A lid plate 12 for closing the opening 26 is attached to the opening 26 on the inner wall side of the lid plate 12, and the lid plate 12 and the recessed part 24 form a relay terminal box A. 24. A refrigerated container characterized in that a relay terminal board 14 for the electrical components is attached to an outer surface facing the inside of the container A, and the terminal board 14 is housed in the terminal box A.