JPH04151479A - Cooling storage - Google Patents

Abstract

PURPOSE:To increase a capacity of a cooler and a cold air circulation fan by a method wherein an end part of a cooler and an end part of a cold air circulation fan are projected from an opening surface of a cooling box and the projected ends are positioned within the opening of the thermal insulating box. CONSTITUTION:A cooler 6 is disposed above a drain pan 20 and fixed to an inner box 21 of a cooling box through a pair of heater fixing plates 28 having a defrosting heater 27 installed thereat. A right end of the cooler 6 is slightly projected outwardly from a side surface opening 9 of the cooling box. A cold air circulating fan 7 is disposed above the cooler 6, fixed to an inner box 21 of the cooling box through a fan casing 32 and a part of the cold air circulation fan 7 is slightly projected out of the side surface opening 9 of the cooling box 5. The cooling box having the cooler 6 and the cold air circulating fan 7 stored therein is connected within the opening 2 of the thermal insulating box. With such an arrangement it is possible to increase a capability of the cooler 6 and the cold air circulation fan 7 without increasing a size of the cooling box 5.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a cooling storage unit known as a so-called under-counter refrigerator.

(b) Prior art As a prior art of the present invention, for example, Japanese Utility Model Publication No. 53-2525
Publication No. 0 describes a cooler whose periphery is formed with an insulating wall except for an opening surface having an inlet and an outlet, and which forms a refrigerant circuit with a compressor etc. inside, and a cooling box equipped with a blower for the cooler. A refrigerating machine, such as a refrigerating vehicle, is disclosed, which is equipped with a cooling box attached to the opening edge of a cold air intake port of a container.

C) Problems to be Solved by the Invention According to the conventional refrigerator, since the cooler and the cooler blower are arranged inside the cooling box, it is difficult to secure a wide effective volume inside the container. However, since the cooler and cooler blower must be housed inside the cooling box, the capacity of the cooler and cooler blower is reduced, resulting in the problem of insufficient cooling. Therefore, the cooling box has been made larger to deal with this problem.

In view of the problems of the prior art, the present invention has been developed without increasing the size of the cooling box that defines the heat exchange chamber in which the cooler and the cold air circulation fan are housed. It provides cooling storage for the purpose of increasing fan capacity.

(d) Means for Solving the Problems In order to achieve the above object, the present invention provides an insulating box that defines a storage room having an opening on the - side and an opening/closing door on the front side, and a side wall. a cooling box defining a heat exchange chamber that opens and communicates with the storage chamber; a cooler and a cold air circulation fan that are housed in the heat exchange chamber and whose ends protrude into the opening of the heat insulating box; This is the part that constitutes the provided cooling storage.

(E) Function According to the present invention, the ends of the cooler and the cold air circulation fan are
By protruding from the opening surface of the cooling box and positioning this protruding end within the opening by effectively utilizing the width of the opening of the insulation box, cooling can be achieved without increasing the size of the cooling box. It is possible to greatly secure the capacity of the container and cold air circulation fan.

(f) Embodiments Examples of the present invention will be described with reference to FIGS. 1 to 16. Fig. 14 and Fig. 16 show a front view and a vertical schematic front view of a cooling storage unit called a so-called under-counter refrigerator, and 1 has an opening 2 on one side and a door 3 on the front side. A heat insulating box defining a storage room 4, 5
is a cooling box body with a side opening 9 defining a heat exchange chamber 8 in which a plate fin type cooler 6 and a cold air circulation fan 7 are housed;
The heat insulating box 1 and the cooling box 5 have their openings 2 and 9 aligned so that the storage chamber 4 and the heat exchange chamber 8 communicate with each other.
They are separably connected by a connecting means to be described later. 10
is a machine room installed in parallel with the heat insulating box 1, and inside the machine room IO there are installed an electric compressor 11, a condenser, etc., which are arranged on a drawable base 13 and connected to the cooler 6. A condensing unit and the cooling box body 5 are housed above the condensing unit, and a machine room door 12 that can be opened and closed is provided on the front side. 14 is arranged in the storage chamber 4, and a suction port 1 is provided at the bottom.
4A is a duct with a discharge port 14B formed at the top.

As shown in FIGS. 1, 2, 9, and 10, the heat insulating box 1 includes an inner box 15 made of metal, an outer box 16 made of metal, and a front opening portion. It is comprised of a breaker 17 that connects both boxes at the openings on the negative side and a foamed heat insulating material 18 such as polyurethane filled between the boxes 15 and 16. The cooling box body 5 also includes an inner box 21 for the heat exchange chamber formed into a drain pan 20 having a drain port 19 by connecting a plurality of metal plate materials and drawing the bottom part, and an outer box 21 for the heat exchange chamber made of metal. The drain pan 20 of the inner box 21 is formed to protrude from the side opening 9 of the cooling box body 5. In addition, the figure number 24 is a drain pan heater, 25 is a drain socket for discharging drain water outside the cooling box body 5, and a connection port 26 for connecting a drain hose (not shown) is formed at the bottom.

The cooler 6 housed in the heat exchange chamber 8 is disposed above the drain pan 20, and is connected to the cooling box through a pair of heater mounting plates 28 on which defrost heaters 27 are attached in a meandering manner. It is fixed to the inner box 21 of No. 5 with screws 29. At this time, the right end of the cooler 6 projects slightly outward from the side opening 9 of the cooling box 5, and the left end of the cooler 6 is close to or in contact with the side of the inner box 21. Furthermore, in order to efficiently defrost the cooler 6, the right defrost heater 27A running at the right end is positioned outward from the right end of the cooler 6, and the left defrost heater 27A running at the left end is positioned outward from the right end of the cooler 6. 27B is located outward from the left end of the cooler 6. For this purpose, a step 30 is formed at the lower side of the inner box 21 to form a space 31 in which the left defrosting heater 27B runs.

Further, the cold air circulation fan 7 housed in the heat exchange chamber 8 is arranged above the cooler 6, and the fan casing 3
2 to the inner box 21 of the cooling box body 5 with screws 33. At this time, a part of the cold air circulation fan 7 protrudes slightly outward from the side opening 9 of the cooling box body 5.

Next, the above connection means for separably connecting the cooling box 5 housing the cooler 6 and the cold air circulation fan 7 to the heat insulating box 1 will be explained. The connecting means consists of a front connecting means and a rear connecting means, and the front connecting means includes a pair of upper and lower hook portions 34 fixed to the front outer surface of the outer box 16 in which the opening 2 of the heat insulating box 1 is formed. and a pair of upper and lower hooks 35 fixed to the front outer surface of the outer box 22 near the opening 9 of the cooling box body 5 in correspondence with the hook portions 34, An outer box 16 in which an opening 2 is formed.
The receiver is constituted by a metal fitting 36 and a locking flange 37 fixed to the rear outer surface of the outer box 22 near the opening 9 of the cooling box body 5 in correspondence with the metal fitting 36.

When connecting the cooling box 5 to the heat insulating box l, a sealing member 38 is attached to the open end surface of the cooling box 5,
After inserting and locking the locking flange 37 into the metal fitting 36, the locking member 38 is brought into close contact with the outer surface of the outer box 16 of the heat insulating box body 1 by hooking the hook 35 onto the hook part 34 and snapping it. Furthermore, the side opening 9 of the cooling box 5 and the opening 2 of the heat insulating box 1 are brought together, and the cooling box 5 is firmly connected to the heat insulating box 1. The heat exchange chamber 8 is brought into communication.

By the way, in order to more easily connect the cooling box 5 to the heat insulating box 1, a transfer means as shown in FIGS. 5 to 8 is constructed. This utilizes the front angle 39 and the rear angle 40 that are fixed to the front upper part and the rear upper part of the heat insulating box 1 and extend to the sides of the heat insulating box 1, so the rail member is placed between the front and rear angles 39 and 40. 41 is fixed. In this rail member 41, a guide hole 42 is formed.The front end of the guide hole 42 is a round hole 42A, and toward the rear,
The distance to the opening 2 of the insulation box 1 is the farthest, and the opening 2
A first guide hole 42B parallel to the plane of
A third guide hole 42D, which is closest to the opening 2 of the heat insulating box 1 and parallel to the surface of the opening 2, is continuously formed, and the widths of the first to third guide holes 42B, 42G, and 42D are the same. is narrower than the diameter of the round hole 42A.

On the other hand, the round hole 42A passes through the upper surface of the cooling box body 5 at a relatively rear position, and each of the guide holes 42B.

42G and 42D are inserted through sliding collars 43 made of resin that cannot be passed through, and the moving screws 44 are fixed. At this time, the body 4 of the moving screw 44 is inserted between the lower surface of the collar 43 and the upper surface of the cooling box body 5.
Fix it so that 4A comes out.

In the above configuration, when the cooling box body 5 incorporating the cooler 6 and the cold air circulation fan 7 is suspended from the rail member 4■, after passing the collar 43 through the round hole 42A, the cooling box body 5 is When the moving screw 44 is moved to the first guide hole 42B as shown in FIG.
It will not come off from 42C942D, and the cooling box body 5 will be in a suspended state.

Thus, the moving screw 44 is inserted into the first guide hole 4 as shown in FIG.
2B, the cooler 6, cold air circulation fan 7, and drain pan 20 protruding from the opening 9 of the cooling box body 5
moves so as not to hit the insulating box 1, and then when the moving screw 44 moves from the first guide hole 42B to the second guide hole 42C, the drain pan 20 gradually enters the opening 2 of the insulating box 1. When the moving screw 44 moves to the third guide hole 42D as shown in FIG.
The receiver is inserted and locked into the metal fitting 36, and the drain pan 20 is completely housed within the opening 2 of the heat insulating box 1. In this state, the hook is 3
5 on the hook portion 34 and snap-fastened, the sealing member 38 is brought into close contact with the outer surface of the outer box 16 of the heat insulating box 1, and furthermore, the sealing member 38 is brought into close contact with the outer surface of the outer box 16 of the heat insulating box 1, and the side opening 9 of the cooling box 5 and the opening 2 of the heat insulating box 1 are closed. Together, the cooling box body 5 is firmly connected to the heat insulating box body I.

Here, the cooler 6, cold air circulation fan 7, and drain pan 20 housed in the heat exchange chamber 8 are connected to the side opening 9 of the cooling box body 5.
It protrudes further outward, and this protruding part is the cooling box body 5.
is connected to the insulation box 1, the opening 2 of the insulation box 1
By fitting within the width of , the cooling box body 5 can be made compact.

Moreover, since the left end of the cooler 6 is disposed close to or in contact with the inner box 2I of the cooling box body 5, dead space is reduced, and the cooling box body 5 can be made more compact even by C-curvature. can do.

Furthermore, even when the left end of the cooler 6 is brought close to or in contact with the inner box 21 of the cooling box body 5, the step 30 formed in the inner box 21 creates a space 3 in which the defrosting heater 27 runs.
1, so the left defrosting heater 27B is connected to the cooler 6.
It protrudes from the left end of the cooler 6 and can run in contact with the left end of the cooler 6, and the peripheral end of the cooler 6 can be defrosted extremely efficiently without increasing the size of the cooling box 5. I can do it.

Next, a method of connecting the cooler 6 in the cooling box body 5 and the condensing unit will be explained based on FIGS. 11 to 13. First, as shown in FIG. 11, an electric compressor 11. Condensing units such as a condenser 46 and a blower 47 are installed. At this time, suction pipe 4
8. The capillary tube 49 soldered along the suction pipe 48 is extended to a sufficient length as shown in the figure.

In this way, base 1 equipped with a condensing unit
3 is slid over three support angles 50 fixed at intervals at the lower part of the opening 2 side of the heat insulating box l, and placed on the support angles 50 as shown in FIG. . After this,
Using the method described above, the cooling box 5 is connected to the heat insulating box 1 as shown in FIG. 13. From the cooling box body 5, an inlet vibrator 6A and an outlet vibrator 6B of the cooler 6 housed in the heat exchange chamber 8 are connected.
As shown in FIGS. 2 and 9, they extend outward through a cutout opening 51 formed in the front part of the opening side of the cooling box body 5, and the inlet vibe 6A and the outlet vibe 6B are It runs in a groove 52 formed on the front surface of the cooling box body 5. This groove 52 is effective in protecting the inlet vibe 6A and the outlet vibe 6B.

Therefore, C's artificial vibrator 6A and cow Yabirari tube 49,
The outlet vibe 6B and the suction pipe 48 are connected by welding to complete the connection between the cooler 6 and the condensing unit. After this, as shown in FIG.
The electrical equipment box 53 is removably attached to the front of the machine room 10 to complete the assembly of the main equipment stored in the machine room 10.

According to the above configuration, after installing the cooling storage, the cooler 6
When repairing or replacing the cold air circulation fan 7 or the condensing unit of the electric compressor 11%, open the door 12 at the front of the machine room IO and remove the electrical box 53, as shown in Figure 15. For example, the base 13 on which the cooling box body 5 and the condensing unit are mounted can be pulled out of the machine room 10, and these parts can be repaired or replaced.

(G) Effects of the Invention As described above, the present invention allows the ends of the cooler and the cold air circulation fan to protrude from the opening surface of the cooling box, and extends the protruding end C to the width of the opening of the heat insulating box. By effectively utilizing the cooling box and locating it within the opening, it is possible to not only secure a large effective volume of the storage room, but also secure a large capacity for the cooler and cold air circulation fan without increasing the size of the cooling box. It offers excellent advantages.

[Brief explanation of drawings]

The drawings all relate to embodiments of the cooling storage of the present invention,
Fig. 1 is a longitudinal sectional front view of the cooling box, Fig. 2 is a cross-sectional plan view, Fig. 3 is a perspective view of the cooling box, Fig. 4 is a perspective view showing the connection means, and Fig. 5 is a cross-sectional plan view of the cooling box. Figure 6 is a plan view showing the cooling box in the middle of moving on the rails, and Figure 7 shows the state in which the cooling box has been connected to the insulation box. The plan view shown in FIG. 8 is the same perspective view, and the FIG.
The figure is a transverse plan view showing the front side of the connecting means in FIG.
Figure 1O is a cross-sectional plan view showing the rear side of the connection means in Figure 2, Figure 11 is a perspective view showing the state before the condensing unit is assembled, and Figure 12 is a perspective view showing the state after the condensing unit is assembled. , Fig. 13 is a perspective view showing the completed connection between the condensing unit and the cooler, Fig. 14 is a front view of the cooling storage, Fig. 15 is a perspective view showing the state with the machine room door open, and Fig. 16 is a perspective view showing the state in which the condensing unit and the cooler are connected. FIG. 3 is a longitudinal sectional front view of the cooling storage. 1. Insulation box, 2. Opening, 4. Storage room, 5. Cooling box, 6. Cooler, 7. Cold air circulation fan, 8. Heat exchange chamber, 9. Side opening.

Claims (1)

[Claims] 1. A heat insulating box that has an opening on one side and defines a storage chamber with an opening/closing door on the front side, and a cooling box that has an opening on the side and defines a heat exchange chamber that communicates with the storage chamber. . A cooling storage, characterized in that a cooler and a cold air circulation fan are installed in the heat exchange chamber and whose ends protrude into the opening of the heat insulating box.