JPH04151483A - Refrigerator - Google Patents

Abstract

PURPOSE:To provide a small-sized cooling box and improve remarkably an assembling work by a method wherein a cooling refrigerator is provided with a connection means for connecting a thermal insulating box to a cooling box, an electrical compressor connected to the cooler and a machine chamber for storing the cooling box. CONSTITUTION:A cooler 6 disposed in a heat exchanging chamber 8, a cold air circulating fan 7 and a drain pan are projected outwardly from a side surface opening 9 of a cooling box 5. When the cooling box 5 is connected to a thermal insulating box 1, these projected portions are stored in an opening 2 of the thermal insulating box 1, thereby the cooling box 5 can be made compact in size. Conditioning devices such as an electrical compressor 11, a condenser and a blower or the like are mounted on a base 13. The base 13 is slid on the three supporting angles 50 fixed below the opening 2 of the thermal insulating box 1 with a certain space being left. Then, the base 13 is mounted on the supporting angles 50. After this operation, the cooling box 5 is connected to the thermal insulating box 1.

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 to the present invention, for example, Japanese Utility Model Publication No. 604051 discloses a heat insulating box in which a foamed heat insulating material is filled between an inner box and an outer box to form a storage chamber opened at the front. Consisting of, etc.
By providing a convex portion on one side wall of the inner box, a front-opening cooling chamber having a cooler is formed continuously with the storage chamber, and a front-opening machine room having a compressor is provided at the lower part of the cooling chamber. A partition plate is provided to partition the cooling room and the storage room, and a door is provided to open and close the openings of each of the storage room, the cooling room, and the machine room, and...1
A refrigerator is disclosed in which a blower for forcibly circulating cold air into a storage compartment is provided on a partition plate attached to a storage compartment door.

(c) Problems to be Solved by the Invention According to the conventional refrigerator, if the size of the cooler is not within the front opening width of the cooling chamber, it becomes difficult to incorporate the cooler into the cooling chamber! However, there was a problem in that the cooling chamber became large. Furthermore, the installation of the blower had to be carried out in a narrow storage room, resulting in poor workability.

In view of the problems of the prior art, the present invention aims to reduce the size of a cooling box defining a heat exchange chamber in which a cooler and a cold air circulation fan are housed. The purpose of this installation is to provide a cooling storage for the purpose of making work easier.

(d) Means for Solving the Problems In order to achieve the above object, the present invention provides an insulating box defining a storage room having an opening on one side and an opening/closing door on the front, and a cooler. and a cooling box with a side opening that accommodates a cold air circulation fan and defines a heat exchange chamber, and the insulation box and the cooling box are separated so that the storage chamber and the heat exchange chamber communicate with each other. A cooling storage is provided with a connecting means that can be connected to the cooling box, and a machine room that is installed in parallel with the heat insulating box and that houses an electric compressor that is connected to the cooler and a machine room that houses the cooling box. .

(E) Function According to the present invention, since the cooling box body can be separated from the heat insulating box body, the cooler and the cold air circulation fan can be disposed protruding into the opening on one side of the heat insulating box body. This reduces the size of the cooling box.

Further, the cooler and the cold air circulation fan can be easily installed in the cooling box body in a large space.

(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 insulation box 1 and the cooling box 5 are arranged so that the openings 2.9 of each are 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
1 is a machine room installed in parallel with the heat insulating box 1, and inside the machine room 10 there are installed an electric compressor 11 and 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.
Discharge ports 14B are formed in portions 4A and F, forming a tζ duct.

As shown in FIGS. 1, 2, 9, and 10, the heat insulating box J includes an inner box 15 made of metal, an outer box 16 made of metal, and a front opening portion. and a breaker I7 that connects both boxes at the side opening, and a t that is filled between both boxes 15 and 16.
It is made of a foamed heat insulating material 18 such as polyurethane. 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. It is composed of a box 22 and a foam insulation material 23 filled between both boxes 21 and 22, and the drain of the inner box 21)
20 is formed to protrude from the end surface of the side opening 9 of the cooling box body 5. In addition, figure number 24 is the drain pan heater, 25
1 is a drain socket for discharging drain water to the outside of the cooling box body 5, and has a connection port 26 at the bottom for connecting a drain hose (not shown).

And heat exchange t! X! The cooler 6 housed in the chamber 8 is disposed above the drain pan 20 and is connected to the defrosting heater 2.
7 is installed in a meandering manner and is fixed to the inner box 21 of the cooling box body 5 with a screw 29 via the heater mounting plate 28 of the cooling box body 5. 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 defrosting heater 27A running on the right end is located outward from the right end of the cooler 6, and the left defrosting heater 27A running on the left end is positioned outward from the right end of the cooler 6. He-927B is cooler 6
located outward from the left end of the For this purpose, a step 30 is formed at the lower side of the inner box 21 to form a space 3 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 l 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, and the rear connecting means is configured to connect to the heat insulating box body l. 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 1, 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 attached to 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 sliding it out. Furthermore, the side opening of the cooling box 5 and the opening 2 of the heat insulating box 1 meet, and the cooling box 5 is firmly connected to the heat insulating box 1. and the heat exchange chamber 8 are 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. The stiffness is fixed to the front upper part and the rear upper part of the heat insulating box 1, and utilizes the front angle 39 and rear angle 40 extending laterally of the heat insulating box 1, and the rail member is installed between the front and rear angles 39 and 40. Identify 41. A guide hole 42 is formed in this rail member 41. The guide hole 42 has a round hole 42A at the front end, and extends 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 above, and a second oblique guide hole 42C gradually approaching the opening 2 of the heat insulating box 1.
A third guide hole 42D, which is closest to the opening 2 of the heat insulating box 1 and parallel to the opening 2, is continuously formed, and the widths of the first to third guide holes 42B, 42C, and 42D are the same. is narrower than the diameter of the round hole 42A.

On the other hand, although the round hole 42A passes through the upper surface of the cooling box body 5 at a relatively rear position, each of the guide holes 4.2842C, 42D
The moving screw 44 is identified by inserting the sliding collar 43 made of resin through which it cannot pass. At this time, the movable screw 44 is fixed so that the body 44A is exposed between the lower surface of the collar 43 and the upper surface of the cooling box body 5.

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 41, after passing the collar 43 through the round hole 42A, the cooling box body 5 is When the moving screw 44 is pushed in and moved to the first guide hole 42B as shown in FIG. 6, the collar 43 sliding on the rail member 41 moves through the first to third guide holes 42B,
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, the cold air circulation fan 7, and the drain pan 20 protrude from the opening 9 of the cooling box body 5.
moves without C hitting the insulating box l, and then moves
When the pipe 44 moves from the first guide hole 42B to the second guide hole 42C, the drenobano 20 gradually moves to the opening 2 of the heat insulating box 1.
The moving screw 44 moves into the third position as shown in FIG.
When moved to the guide hole 42D, the locking flange 37 is inserted and locked into the metal fitting 36, and the drenopan 20 is completely accommodated within the opening 2 of the heat insulating box 1. In this state, by pulling the hook 35 onto the hook part 34 and fixing it with the hook, the small member 38 is attached to the outer box of the heat insulating box 1.
Further, the side opening 9 of the cooling box 5 and the opening 2 of the heat insulating box 1 meet, so that the cooling box 5 is firmly connected to the heat insulating box 1.

Here, the T-cooler 6, cold air circulation fan 7, and F-lens vane 20 housed in the heat exchange chamber 8 protrude outward from the side opening 9 of the cooling box body 5, and this protruding portion When the body 5 is connected to the heat insulating box 1, it fits within the opening 2 of the heat insulating box 1, thereby making it possible to make the cooling box 5 more compact.

Moreover, since the left end of the cooler 6 is disposed close to or in contact with the inner box 21 of the cooling box body 5, dead space is reduced, and thereby the cooling box body 5 can be made more compact. be able to.

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, a condensing unit including the electric compressor 11, condenser 46, air blower 947, etc. is mounted on the base 13. At this time, suction vibe 48
, the cabillary tube 49 soldered along the suction vibe 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, the artificial vibrator 6A and the Roro vibrator 6B of the cooler 6 housed in the heat exchange chamber 8 are released.
As shown in FIGS. 2 and 9, the pressure extends 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, this inlet vibe 6A and cabillary 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 such as the electric compressor Il, open the door 12 in front of the machine room 10 and open the electrical box 53, as shown in FIG. Once removed, the cooling box body 5 and the base 13 on which the condensing unit is 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 cooling box body to be separated from the heat insulating box body. The cooling box body can be made smaller.

In addition, the cooler and cold air circulation fan can be easily installed in the cooling box in a large area, and therefore,
Since it is only necessary to connect the cooling box to the heat insulating box, assembly work efficiency is significantly improved.

Furthermore, since both the cooling box and the electric compressor are located in the machine room, the refrigerant piping that connects the electric compressor to the cooler housed in the cooling box becomes extremely long and complicated. It never happens.

[Brief explanation of the drawing]

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.
FIG. 10 is a cross-sectional plan view showing the rear side of the connecting means in FIG. 2, FIG. 11 is a perspective view showing the state before the condensing unit is assembled, and FIG. 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 - Heat insulation box, 2 - Opening, 4 - Storage room, 5 Cooling box, 6 - Cooler, 7 - Cold air circulation fan, 8 Heat exchange room, 9 One side opening, 10 - Machine room, 11 Electric compression Machine, 34 Hook part, 35- Hanging fitting, 36 Receiving metal fitting, 37- Locking flange.

Claims (1)

[Claims] 1. An insulating box with an opening on one side that defines a storage room with an opening/closing door on the front, and a cooling box with side openings that defines a heat exchange room that houses a cooler and cold air circulation fan. a connecting means for separably connecting the heat insulating box and the cooling box so that the storage chamber and the heat exchange chamber communicate with each other; 1. A cooling storage, comprising a machine room for housing an electric compressor connected to the cooling box and the cooling box.