JP3226420B2 - Cooling storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration storage in which the inside of an insulated box is divided by partition walls and cooled to different temperatures.

[0002]

2. Description of the Related Art As a cooling storage of this type, for example, a refrigerator-freezer disclosed in Japanese Utility Model Laid-Open Publication No. 3-61281 is known. As shown in FIG. 15, the inside of the heat insulating box 1 is divided into a freezing compartment 3 located on the left side in the drawing and a refrigerating compartment 4 located on the right side in the drawing by the partition wall 2, and a cooler 5 and a fan 6 for the cooler. Is provided adjacent to the freezer compartment 3. The discharge side of the cooler fan 6 is the freezer compartment 3
The cold air is blown into the freezer compartment 3 and the cold air guide duct 8 provided with the refrigerating compartment fan 8 a is provided on the partition wall 2. The part can be poured into the refrigerator compartment 4. A return duct 9 is provided below the freezer compartment 3 and communicates with the bottom of the freezer compartment 3 and the bottom of the refrigerating compartment 4 into the machine compartment 7. It is designed to be sucked back.

[0003]

However, in the above configuration, the air in the refrigerating compartment 4 is sucked through the return duct 9 toward the fan 6 for the cooler. There is a problem that the windage becomes relatively large and a sufficient amount of cold air cannot be supplied into the refrigerator compartment 4. Therefore, an object of the present invention is to form a plurality of storage compartments by partition walls, and to allow cooler fans provided in one storage compartment to smoothly circulate cool air through a circulation path passing through the other storage compartment. To provide a cooling storage that can be used.

[0004]

SUMMARY OF THE INVENTION The cooling storage of the present invention comprises:
A plurality of storage compartments are formed by dividing the heat-insulating box body by partition walls, a cooler and a cooler fan for circulating cool air generated therein are arranged in one storage compartment, and the one of the ones is disposed on the partition wall. Rutotomoni provided a storage compartment of the cold air return cold air recirculates from the other cold air inlet and the other storage room to flow into the storage chamber into said one storage compartment opening, on the other storage compartment
By providing a cool air supply fan and controlling its drive
The other storage compartment to a higher temperature than the one storage compartment.
In the one configured to hold, the cool air return port of the partition wall is located near the intake side of the fan for the cooler, and the cool air inlet is located near the end of the circulation path of the cool air in the one storage room. It has a feature in that it is provided with an opening.

[0005]

[0006]

According to the present invention, the cool air generated by the cooler in one storage room is circulated in the storage room by the fan for the cooler. Further, the partition wall is provided with a cool air inlet and a cool air return port, and the cool air return port is provided near the intake side of the fan for the cooler. The cool air in the other storage room is sucked into the one storage room side, and accordingly, the cool air generated by the cooler flows into the other storage room through the cool air inlet of the partition wall, and the other storage room. Indoor cool air circulation
The ring becomes very active.

[0007]

[0008]

As described above, according to the present invention, the following effects can be obtained. Since the intake side of the cooler fan is located near the cool air return port provided on the partition wall that partitions the storage room, the cool air generated by the cooler provided in one storage room is smoothly circulated through the other storage room. it can be Ru it is possible to achieve a sufficient cooling.

[0009]

【Example】

<First Embodiment> A first embodiment in which the present invention is applied to an assembly type freezer storage will be described below with reference to FIGS. The heat-insulating box 10 is constituted by combining a plurality of heat-insulating panels, as will be described in detail later, and two compartments are formed on the left and right sides by a heat-insulating partition wall 21 provided therein. The storage room on the left side is, for example,-
The freezing storage room S is controlled at a temperature of about 20 ° C., and the storage room on the right side is a quick freezing room F for controlling the temperature of, for example, about −40 ° C. to rapidly freeze the stored food. A rectangular opening 22 is formed in the upper part of the partition wall 21, and the partition plate 2 is formed in the lower half of the opening 22.
3 is provided so as to partition the two chambers S and F, and a cold air inlet 24 for allowing the cool air in the quick freezing chamber F to flow into the freezing storage chamber S is formed in the partition plate 23. The upper half of the opening 22 is open as it is, and the cool air return port 25 for returning the cool air in the freezing storage room S to the quick freezing room F.
It has become. Further, on the freezing storage room S side, a cold air guide plate 26 connected to the partition plate 23 is provided extending vertically.
As shown in FIG. 2, the duct 2 connected to the cool air inlet 24
7 are formed. This duct portion 27 is
And has a ventilation opening 28 in the vicinity of the bottom surface of the freezing storage chamber S, so that a ventilation path from the cold air inlet 24 of the partition plate 23 to the ventilation opening 28 is formed in the partition wall 21. It is formed along. A cool air supply fan 29 is disposed in the ventilation opening 28 of the ventilation path. By operating the cool air supply fan 29, the cool air in the quick freezing chamber F is introduced into the freezing storage chamber S through the ventilation path. It can be supplied. The upper portion of the cool air guide plate 26 is extended to a portion facing the cool air return port 25, and the ventilation path connected to the cool air return port 25 is also bent in an L shape.

On the other hand, a cooler 11 is mounted on a support frame 12 and fixed to the ceiling of the quick freezing chamber F. The cooler 11 forms a part of a refrigeration cycle (not shown), and has a well-known structure in which liquid refrigerant is vaporized to cool ambient air. Further, below the support frame 12, food shelves 13 on which foods to be frozen are placed are provided in a plurality of stages (see FIG. 2). On the left side of the cooler 11, a fan motor 15 is fixed via a bracket 14 with the rotating shaft 15a facing the cooler 11, and a cooler fan 16 is attached to the rotating shaft 15a. . As shown in FIG. 2, the fan 16 for the cooler has a discharge side toward the cooler 11, an intake side toward the cool air return port 25 of the partition wall 21, and a cool air return closer to the partition wall 21 than the cooler 11. It is located near the mouth 25.

The heat insulating panels constituting the heat insulating box 10 will be described in detail. Each of the heat insulating panels is formed by filling a flat box-shaped outer shell 30 with a heat insulating material 31 such as urethane foam. (See FIG. 9). First, a total of two heat-insulating panels 32 constituting the ceiling portion and the bottom plate portion of the freezing storage room S
As shown in FIG. 3, one of the left and right end surfaces has a protruding portion 40, and the other has a groove 41 having a shape into which the protruding portion 40 can be fitted. In addition, as shown in FIG. 4, the two heat insulating panels 33 constituting the ceiling portion and the bottom plate portion of the quick freezing chamber F have protrusions 40 on both left and right end surfaces. On the other hand, as shown in FIG. 5, the heat insulating panel 34 constituting the rear part of the freezing storage room S has a groove 41 on the right end face and is fitted with the groove 41 on the three upper, lower, and left end faces. A projecting ridge 40 (only the upper side is drawn in FIG. 5) is formed, and the heat insulating panel 35 constituting the back surface of the quick freezing chamber F has the projecting ridges 40 at the four end faces.
Further, a heat insulating panel 36 constituting the front part of the freezing storage room S
6, has two storage entrances 36a, has a groove 41 on the right end face like the heat insulation panel 33, and fits the groove 41 on the other three end faces. It has a ridge 40 that mates. The front heat insulating panel 36 has two storage entrances 36a formed vertically symmetrically with respect to a vertical center line A as shown in FIG. 6, and has mounting holes for components not shown. Are formed symmetrically with respect to the center line A. Further, a heat insulating panel 37 constituting the front part of the quick freezing chamber F is provided.
As shown in FIG. 7, the storage device has a storage entrance 37a and, like the heat insulation panel 35 on the rear side, has projections 40 on the four end surfaces. In addition, the heat insulation panel 38 which comprises the left side part of the freezing storage room S and the right side part of the quick freezing room F,
As shown in FIGS. 2 and 8, reference numeral 39 has four side grooves 41 on the outer peripheral portion of the side surface on the indoor side.

As a result of the construction of each of the heat insulating panels 32 to 39, as shown in FIGS.
The heat insulating box 10 can be configured by fitting the 2 to 39 ridges 40 into the groove 41 and combining them. At this time, a sealing tape 42 can be attached and sealed to the fitting portion between the ridge portion 40 and the groove portion 41 as shown in FIG.
In this embodiment, an example is shown in which the cryopreservation chamber S is disposed on the left side and the quick-freezing chamber F is disposed on the right side.
By setting the heat insulation panel 36 of the freezing storage room S upside down and arranging it on the right side as shown by 0, the freezing storage room S can be arranged on the right side and the quick freezing room F can be arranged on the left side. . This is the heat insulation panel 3 of the quick freezing room F
2 and the heat insulating panels 34 and 36 of the cryopreservation room S are vertically symmetrical. The advantage that the degree of freedom is increased is obtained. Further, by adding a structure similar to each of the heat insulating panels 34 and 36 constituting the freezing storage room S to the left side of the freezing storage room S, the number of the freezing storage rooms S is increased as shown in FIG. Therefore, there is an advantage that various types of prefabricated storages can be configured using the standardized heat insulation panels 32, 34, 36.

Next, the operation of this embodiment will be described. Cooler 1 of quick freezing room F by operation of refrigeration cycle
1 has a cooling function and cools the air around the cooler 11. At the same time, the fan motor 15 is operated to rotate the cooler fan 16, so that the cool air descends along the right side from the upper portion of the quick freezing chamber F as indicated by the arrow shown by the solid line in FIG. It travels around, rises along the left side surface, is sucked from the left side of the cooler fan 16, and circulates similarly thereafter. As a result, the food placed on the food shelf 13 is rapidly cooled and frozen. On the other hand, since the cooler fan 16 is located near the cool air return port 25 of the partition wall 21, the air in the cool air return port 25 is also sucked into the cooler fan 16 side. Here, if the temperature in the freezing storage room S exceeds the set temperature, the duct portion 27
The cool air supply fan 29 is operated, and the cool air in the quick freezing chamber F is supplied into the freezing storage chamber S through the duct portion 27 as shown by a two-dot chain line in FIG. As a result, as shown by the two-dot chain line in FIG. 12, the air in the freezing storage chamber S is sucked into the quick freezing chamber F by the suction force of the fan 16 for the cooler, and Since a part of the cold air in the quick freezing chamber F is supplied into the freezing storage chamber S and the circulation of the cold air occurs, the inside of the freezing storage chamber S is also sufficiently cooled, and the food inside is stored in a frozen state. become. When the cooler fan 16 is operated in the quick freezing chamber F and the temperature in the freezing storage chamber S is cooled down below the set temperature, the operation of the cool air supply fan 29 is stopped. Then, the cool air supply fan 29 acts as a ventilation resistance in the ventilation path of the duct portion 27, and the circulation amount of the cool air is extremely small as shown in FIG. Thus, the supercooling in the freezing storage room S is prevented.

As described above, according to the present embodiment, since the cooler fan 16 is disposed near the cool air return port 25 of the partition wall 21, the suction force accompanying the operation of the cooler fan 16 is utilized. As a result, sufficient cold air can be circulated through the freezing storage room S, and the freezing storage room S can be sufficiently cooled. Further, in this embodiment, particularly, the duct portion 27 is used.
Since the cool air supply fan 29 is provided in the refrigerator, a larger amount of cool air can be circulated into the freezing storage room S by operating the cool air supply fan 29, and the cool air can be circulated by stopping the cool air supply fan 29. And the controllability of the amount of circulating cool air is excellent.

<Second Embodiment> FIG. 14 shows a second embodiment of the present invention. The difference from the first embodiment is that a duct 53 is formed by forming a cool air inlet 51 at the lower part of the partition wall 50 and providing a cool air guide plate 52 inside the quick freezing chamber F along the partition wall 50. In addition, a cool air supply fan 54 is disposed in the cool air inlet 51. The other configuration is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and overlapping description will be omitted. Also in this configuration, since the cooler fan 16 is located near the cool air return port 25, the cool air in the freezing storage chamber S is sucked with the operation of the cooler fan 16 as in the first embodiment. A part of the cold air in the freezing chamber F is sufficiently supplied into the freezing storage chamber S, so that the effect of enabling smooth cooling can be obtained.

<Other Embodiments> The present invention is not limited to the above-described embodiments. For example, the following embodiments are possible, and these are also included in the technical scope of the present invention. (1) In both of the above embodiments, the cooling air supply fans 29 and 54 are provided in the duct portions 27 and 53. However, in the case where the supply amount of the cooling air to the freezing storage room S is small due to the storage temperature, for example, It is not necessary to provide the cool air supply fans 29 and 54. Even in such a case, a sufficient amount of cool air can be circulated in the freezing storage room S using the cooler fan 16. (2) In both of the above embodiments, the quick freezing chamber F and the freezer storage S
An example of applying to a cooling storage that combines
The present invention is not limited to this, and may be applied to, for example, a configuration in which a freezer compartment and a refrigerator compartment are combined, and a configuration in which a refrigerator compartment and a high-humidity storage compartment are combined. Thus, the present invention can be widely applied to a cooling storage in which a plurality of storage chambers are configured and a cooler and a fan for a cooler are arranged in one storage chamber.

In addition, the present invention is not limited to the embodiment described with reference to the above description and drawings, and can be implemented with various modifications without departing from the scope of the invention.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing the first embodiment of the present invention.

FIG. 2 is an overall longitudinal sectional view of the same.

FIG. 3 is a perspective view of a heat insulating panel constituting a ceiling part and a bottom part on the same side of the freezing storage room.

FIG. 4 is a perspective view of a heat insulating panel constituting a ceiling portion and a bottom portion of the quick freezing chamber.

FIG. 5 is a perspective view of a heat insulating panel constituting a rear part of the same freezing storage room.

FIG. 6 is a front view of the heat insulating panel which also forms the front part on the side of the freezing storage room.

FIG. 7 is a front view of the heat insulation panel which also forms the front part of the quick freezing chamber side.

FIG. 8 is an overall cross-sectional view of the same.

FIG. 9 is an enlarged cross-sectional view of a combination part of the heat insulation panel.

FIG. 10 is a front view showing another combination example of the heat insulating panel.

FIG. 11 is a perspective view showing another combination example of the heat insulating panel.

FIG. 12 is an enlarged vertical sectional view of a partition wall showing a circulation path of cool air.

FIG. 13 is an enlarged vertical sectional view of a partition wall showing another circulation path of cold air.

FIG. 14 is an overall longitudinal sectional view showing a second embodiment of the present invention.

FIG. 15 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Insulated box 11 ... Cooler 16 ... Cooler fan 21 ... Partition wall 24 ... Cold air inlet 25 ... Cold air return port 27 ... Duct part 29 ... Cold air supply fan 32-39
… Insulated panel F… Quick freezing room S… Freezing storage room

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F25D 17/08 304

Claims (1)

(57) [Claims] 1. A plurality of storage compartments are defined by partitioning a heat insulating box body by partition walls, and a cooler and a cooler fan for circulating cool air generated therein are arranged in one of the storage compartments. Rutotomoni provided, cold return port for recirculating the one cold air in the storage compartment of the wall from the other cold air inlet and the other for flowing the storage chamber of the storage chamber into said one storage compartment, the other
A cooling air supply fan is installed in one of the storage rooms to control its operation.
In this way, the other storage room is referred to as the one storage room.
In which the cool air return port of the partition wall is located near the suction side of the fan for the cooler, and the cool air inlet is connected to a circulation path of cool air in the one storage room. A cooling storage, characterized by being opened near the end of the cooling storage.