JPH0816575B2 - Cold storage - Google Patents

Description

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

(B) Prior art As a prior art of the present invention, for example, Japanese Utility Model Publication No. 60-4051 discloses a heat insulation in which a foam insulation material is filled between an inner box and an outer box to form a storage chamber having an opening at the front. By forming a convex part on one side wall of the inner box, the cooling chamber having a front opening and having a cooler is formed continuously with the storage chamber, and the lower part of the cooling chamber is compressed. A machine room having a front opening having a machine is provided, and a partition plate for partitioning the cooling room and the storage room is provided, and a door for opening and closing the openings of the storage room, the cooling room and the machine room is provided. Disclosed is a refrigerator characterized in that a blower for forcedly circulating cold air to the storage chamber is provided on a partition plate orthogonal to the storage chamber door.

(C) Problem to be Solved by the Invention According to such a conventional refrigerator, unless the dimensions of the cooler are accommodated within the front opening width of the cooling chamber, it becomes difficult to incorporate the cooler into the cooling chamber. There is a problem that the cooling chamber becomes large. In addition, the workability was poor because the blower had to be installed in a small storage room.

In view of such problems of the conventional technology, the present invention aims at downsizing of a cooling box that defines a heat exchange chamber accommodating a cooler and a cool air circulating fan, and further, these cooler and cool air circulating fan. It is intended to provide a cooling storage for the purpose of facilitating the mounting work of the.

(D) Means for Solving the Problems In order to achieve the above object, the present invention provides a heat insulating box body having an opening on one side and defining a storage chamber having an opening / closing door on the front surface, and a cooler. And a cooling box body having a side opening defining a heat exchange chamber accommodating a cool air circulation fan, a rail member having a guide hole for suspending the cooling box body and guiding the cooling box body to a predetermined position, the storage chamber and the storage chamber. A connecting unit that separably connects the heat insulating box and the cooling box so that the heat exchange chamber communicates with each other, an electric compressor that is provided in parallel with the heat insulating box, and is internally connected to the cooler, and The cooling storage is provided with a machine room for storing the cooling box body.

(E) Operation According to the present invention, since the cooling box body can be separated from the heat insulating box body, the cooler and the cool air circulation fan should be provided so as to project in one opening of the heat insulating box body. The cooling box body is downsized.

Further, the cooler and the cool air circulation fan can be easily installed in a cooling box body at once in a wide area.

(F) Embodiments Embodiments of the present invention will be described with reference to FIGS. 1 to 16. FIGS. 14 and 16 show a front view and a vertical outline front view of a cooling storage called a so-called under-counter type refrigerator, where 1 has an opening 2 on one side and an opening / closing door 3 on the front. A heat-insulating box body 5 that defines a storage chamber 4 provided therein is a cooling box body having a side opening 9 that defines a heat exchange chamber 8 in which a plate fin type cooler 6 and a cool air circulation fan 7 are housed. The cooling box 5 and the cooling box 5 are separably connected to each other by connecting means to be described later so that the storage chamber 4 and the heat exchange chamber 8 communicate with each other so that the openings 2 and 9 are aligned with each other. Reference numeral 10 denotes a machine room arranged in parallel with the heat insulation box 1, and an electric compressor 11 and a condenser which are arranged inside the machine room 10 on a drawable base 13 and are connected to the cooler 6. The condensing unit and the cooling box 5 are housed above the condensing unit, and a machine room door 12 that can be opened and closed is provided on the front surface. 14 is disposed in the storage chamber 4, and has a suction port 14A at the bottom and a discharge port 14B at the top.
It is a duct formed.

As shown in FIG. 1, FIG. 2, FIG. 9 and FIG. 10, the heat insulating box 1 includes a metal inner box 15, a metal outer box 16, and a front opening portion. And a breaker 17 that connects both boxes at one opening, and a foam insulation material 18 such as polyurethane filled between the boxes 15 and 16. Also,
The cooling box body 5 includes a heat exchange chamber inner box 21 formed by connecting a plurality of metal plate members and forming a drain pan 20 having a drain port 19 by drawing a bottom portion, and a metal heat exchange chamber outer box 22.
The drain pan 20 of the inner box 21 is formed so as to project from the end surface of the side opening 9 of the cooling box body 5. In addition, reference numeral 24 is a drain pan heater, 25 is a drain socket for draining drain water to the outside of the cooling box body 5, and a connection port 26 for connecting a drain hose (not shown) is formed in the lower portion.

The cooler 6 housed in the heat exchange chamber 8 is arranged above the drain pan 20, and has a cooling box body through a pair of heater mounting plates 28 on which the defrosting heater 27 is mounted in a meandering manner. 5
It is fixed to the inner box 21 by screws 29. At this time, the right end of the cooler 6 projects slightly outward from the side surface opening 9 of the cooling box body 5, and the left end of the cooler 6 is close to or in contact with the side surface of the inner box 21. Furthermore, in order to efficiently defrost the cooler 6, the right defrost heater 27A traveling on the right end is located outside the right end of the cooler 6 and the left defrost heater 27B traveling on the left end. Is located outside the left end of the cooler 6.
For this reason, a step 30 is formed in the lower portion of the side surface of the inner box 21 to form a space 31 in which the left defrost heater 27B travels.

In addition, the cold air circulation fan 7 housed in the heat exchange chamber 8 is
The fan casing is arranged above the cooler 6.
It is fixed via screws 32 to the inner box 21 of the cooling box body 5 with screws 33. At this time, a part of the cool air circulation fan 7 is slightly outside the side opening 9 of the cooling box body 5.

Next, the connecting means for detachably connecting the cooling box body 5 accommodating the cooler 6 and the cold air circulation fan 7 to the heat insulating box body 1 will be described. The connecting means comprises a front connecting means and a rear connecting means. The front connecting means is a pair of upper and lower hook portions 34 fixed to the front outer surface of the outer case 16 in which the opening 2 of the heat insulating box 1 is formed. And the outer box 22 near the opening 9 of the cooling box body 5
Of the outer box 16 in which the opening portion 2 of the heat insulating box 1 is formed, and the rear connecting means comprises And a locking flange 37 fixed to the receiving metal fitting 36 on the rear outer surface of the outer box 22 near the opening 9 of the cooling box body 5.

When the cooling box body 5 is connected to the heat insulating box body 1, the seal member 38 is attached to the opening end surface of the cooling box body 5,
After inserting the locking flange 37 into the receiving metal fitting 36 and locking,
By hooking 35 on the hook portion 34 and snapping it, the sealing member 38 is brought into close contact with the outer surface of the outer box 16 of the heat insulating box 1,
Furthermore, the side opening 9 of the cooling box 5 and the opening 2 of the heat insulating box 1
As a result, the cooling box body 5 is firmly connected to the heat insulating box body 1, whereby the storage chamber 4 and the heat exchange chamber 8 are brought into communication with each other.

By the way, in order to more easily perform the work of connecting the cooling box body 5 to the heat insulating box body 1, the transfer means as shown in FIGS. 5 to 8 is configured. This uses a front angle 39 and a rear angle 40 which are fixed to the front upper part and the rear upper part of the heat insulating box 1 and extend to the side of the heat insulating box 1, and the rail member between the front and rear angles 39 and 40. Fix 41. A guide hole 42 is formed in the rail member 41. The guide hole 42 is
The front end is a round hole 42A, and the distance to the opening 2 of the heat insulating box 1 is the longest toward the rear, and the first guide hole 42B parallel to the surface of the opening 2 and the opening 2 of the heat insulating box 1 The diagonal second guide hole 42C gradually approaching the distance and the distance to the opening 2 of the heat insulating box 1 are the closest, and the third guide hole 42D parallel to the surface of the opening 2 is continuously formed. The width of the first to third guide holes 42B, 42C, 42D is smaller than the diameter of the round hole 42A.

On the other hand, on the upper surface of the cooling box body 5, a resin-made sliding collar 43 is inserted through the round hole 42A but not the guide holes 42B, 42C, 42D at a relatively rear position, and a moving screw 44 is inserted. Fix it.
At this time, the moving screw 44 is fixed so that the body portion 44A of the moving screw 44 is exposed between the lower surface of the collar 43 and the upper surface of the cooling box body 5.

In the above configuration, the cooler 6 and the cool air circulation fan 7
When the cooling box body 5 incorporating the above is suspended on the rail member 41, after passing the collar 43 through the round hole 42A, the cooling box body 5 is pushed backward and the moving screw 44 is moved as shown in FIG. First
When moved to the guide hole 42B, the collar 43 sliding on the rail member 41 does not come off from the first to third guide holes 42B, 42C, 42D, and the cooling box 5 is suspended.

Then, as shown in FIG. 6, the moving screw 44 moves the first guide hole 42
When B is moving, the cooler 6, the cool air circulation fan 7, and the drain pan 20 protruding from the opening 9 of the cooling box 5 move without hitting the heat insulating box 1, and then the moving screw 44 moves to the first position. When moving from the guide hole 42B to the second guide hole 42C, the drain pan 20 gradually enters the opening 2 of the heat insulating box 1,
When the moving screw 44 moves to the third guide hole 42D as shown in FIG. 7, the above-mentioned locking flange 37 is inserted and locked in the receiving metal fitting 36, and the drain pan 20 is inserted into the opening 2 of the heat insulating box 1. All fit. In this state. By hooking the hook 35 on the hook 34 and snapping the hook 35, the seal member 38 becomes the heat insulating box 1.
The outer box 16 of the cooling box 5 is closely attached to the outer surface of the
The cooling box body 5 is firmly connected to the heat insulation box body 1 by combining the opening 2 of the heat insulation box body 1 with the above.

Here, the cooler 6, the cooling circulation fan 7 and the drain pan 20 housed in the heat exchange chamber 8 are the side opening 9 of the cooling box body 5.
It projects further outward, and this projecting portion is the cooling box body 5.
When the heat insulating box 1 is connected to the heat insulating box 1, the opening 2 of the heat insulating box 1
By keeping it inside, the cooling box body 5 can be made compact.

Moreover, since the left end of the cooler 6 is arranged close to or in contact with the inner box 21 of the cooling box body 5, the dead space is reduced, which also achieves the downsizing of the cooling box body 5. be able to.

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, a step formed in the inner box 21
Since the space 31 in which the defrost heater 27 travels is formed by 30, the left defrost heater 27B can project from the left end of the cooler 6 and run in contact with the left end of the cooler 6. The defrosting of the peripheral end portion of the cooler 6 can be performed extremely efficiently without increasing the size of the cooling box body 5.

Next, a method for connecting the cooler 6 in the cooling box 5 and the condensing unit will be described with reference to FIGS. 11 to 13. First, as shown in FIG. 11, a condensing unit such as the electric compressor 11, the condenser 46, and the blower 47 is mounted on the base 13. At this time, the suction pipe 48 and the capillary tube soldered along the suction pipe 48
49 is extended to a sufficient length as shown.

In this way, a base equipped with a condensing unit
The 13 is slid on the three support angles 50 fixed to the lower part of the heat insulating box 1 on the side of the opening 2 with a gap and placed on the support angle 50 as shown in FIG. . After that, the cooling box body 5 is attached to the heat insulation box body 1 as shown in FIG. 13 by the method described above.
Connect to. From the cooling box body 5, the inlet pipe 6A and the outlet pipe 6B of the cooler 6 housed in the heat exchange chamber 8 are located in front of the opening surface side of the cooling box body 5 as shown in FIGS. 2 and 9. The inlet pipe 6A and the output pipe 6B are extended to the outside through a notch opening 51 formed in the section, and run in a groove 52 formed in the front surface of the cooling box body 5. This groove 52 is the inlet pipe
Effective in protecting 6A and outlet pipe 6B.

Then, the inlet pipe 6A and the capillary tube 49,
The outlet pipe 6B and the suction pipe 48 are connected by welding, respectively, and the connection between the cooler 6 and the condensing unit is completed. Thereafter, as shown in FIG. 15, the electrical equipment box 53 is detachably attached to the front of the cooling box body 5 to complete the assembly of the main device housed in the machine room 10.

According to the above configuration, after the cooling storage is installed, when the condensing unit such as the cooler 6, the cool air circulation fan 7 or the electric compressor 11 is repaired or replaced, as shown in FIG. Open the door 12 on the front of the machine room 10 and open the electrical box.
By removing 53, the cooling box 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) Effect of the Invention As described above, according to the present invention, since the cooling box body can be separated from the heat insulating box body, the cooler and the cool air circulation fan are provided so as to project into one opening of the heat insulating box body. Can be placed,
The cooling box body can be downsized.

Also, the cooler and the cool air circulation fan can be easily installed in a large space at once in the cooling box body. Therefore, the cooling box body only needs to be connected to the heat insulation box body, so that the assembly workability is significantly improved. To do.

Further, since the cooling box body is guided to the predetermined position by the guide hole of the rail member, the work of attaching and detaching the cooling box body can be improved.

Further, since both the cooling box and the electric compressor are arranged in the machine room, the refrigerant pipe connecting the cooler housed in the cooling box and the electric compressor becomes extremely long or complicated. It never becomes.

[Brief description of drawings]

The drawings are all related to the embodiment of the cold storage of the present invention,
1 is a vertical sectional front view of a cooling box body, FIG. 2 is a cross-sectional plan view of the same, FIG. 3 is a perspective view of the cooling box body, FIG. 4 is a perspective view showing connecting means, and FIG. 5 is a cooling box. Fig. 6 is a perspective view showing the side structure of the body and the heat insulating box, Fig. 6 is a plan view showing the cooling box being moved along the rail, and Fig. 7 shows a state in which the cooling box is completely connected to the heat insulating box. FIG. 8 is a plan view showing the same, FIG.
The figure is a transverse plan view showing the front side of the connecting means in 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 a state before the condensing unit is incorporated, and FIG. 12 is a perspective view showing a state after the condensing unit is incorporated. , FIG. 13 is a perspective view showing a connection completion state of the condensing unit and the cooler, FIG. 14 is a front view of the cooling storage, FIG. 15 is a perspective view showing a state in which the machine room door is opened, and FIG. It is a vertical front view of a cooling storage. 1 ... Insulation box, 2 ... Opening, 4 ... Storage room, 5 ...
Cooling box, 6 ... Cooler, 7 ... Cold air circulation fan, 8 ...
… Heat exchange room, 9 …… Side opening, 10 …… Machine room, 11 …… Electric compressor, 34 …… Hook part, 35 …… Hook, 36 …… Batch, 37 …… Locking flange.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koji Kume, 2-18, Keihan Hon-dori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) In-house, Yasushi Yamagishi 2--18, Keihan Hon-dori, Moriguchi, Osaka Sanyo Electric Co., Ltd. (56) Reference JP-A-2-233962 (JP, A) JP-A-2-192568 (JP, A) Actually-opened JP-A-2-128082 (JP, U)

Claims (1)

[Claims] 1. A heat insulating box body having an opening on one side and defining a storage chamber having an opening / closing door on the front side, and a side opening defining a heat exchange chamber accommodating a cooler and a cold air circulation fan. Cooling box body, a rail member having a guide hole for suspending the cooling box body and guiding it to a predetermined position, the heat insulating box body and the cooling box body so that the storage chamber and the heat exchange chamber communicate with each other. And a machine room for accommodating the cooling box body and the electric compressor connected to the cooler inside the connecting means for connecting the cooling box body and the connecting means. Cold storage.