JP6765714B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator that equalizes the temperature inside the storage chamber.

A typical refrigerator has an insulating box that forms a storage chamber with an opening in front and an insulating door that closes this opening. Further, the heat insulating box body includes an outer box made of steel plate, an inner box made of synthetic resin and arranged inside the outer box, and a heat insulating material filled in a gap formed between the outer box and the inner box. It is composed of. Further, a general refrigerator is equipped with a refrigerating cycle consisting of a compressor, a condenser, an expansion means and an evaporator, and by supplying the cold air cooled by the refrigerating cycle to each storage chamber, each storage chamber The temperature inside the refrigerator was cooled to a predetermined temperature range.

Further, the cold air cooled in the refrigeration cycle is blown to each storage chamber by rotating the cooling fan provided in the cooling chamber, and is blown to each storage chamber via an air outlet provided by opening the rear side wall of each storage chamber. Cold air was introduced into each storage room. This type of refrigerator is described in, for example, Patent Document 1.

Japanese Unexamined Patent Publication No. 2000-12230

However, in the above-mentioned general refrigerator, for example, cold air is supplied to the refrigerator compartment from an air outlet formed near the central portion of the rear side wall. Therefore, when the refrigerated material to be refrigerated in the refrigerating chamber is placed near the air outlet, only the refrigerated material in the portion approaching the air outlet is cooled, and the other parts of the refrigerated material are satisfactorily cooled. There was a risk that it would not be cooled. In addition, in order to spread the cold air throughout the refrigerating room and cool the refrigerating room uniformly as a whole, there was room for consideration in the position of the air outlet from which the cold air was blown out.

In particular, when beverage containers such as wine are densely arranged inside the refrigerator compartment, if the outlet for cold air is formed only near the center of the rear side wall, the cold air will come into direct contact with the bottom of the beverage container. , It is conceivable that the cold air does not sufficiently contact the other parts of the beverage container. In such a case, a temperature distribution may be formed in the beverage filled in the beverage container, and the flavor and the like of the beverage may be impaired.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a refrigerator capable of uniformly cooling a stored object stored in a storage chamber.

The refrigerator of the present invention includes a compressor that compresses the refrigerant, a condenser that condenses the compressed refrigerant, an expansion means that expands the condensed refrigerant, and an evaporator that evaporates the expanded refrigerant. A refrigerating cycle having the A return port for returning the cold air that has cooled the storage chamber to the cooling chamber side, and a damper for adjusting the amount of the cold air flowing through the air passage connecting the blower and the air outlet are provided. The outlet is located on the rear side of the storage chamber and on one end side in the width direction of the storage chamber, and the return port is on the rear side of the storage chamber and on the other end side in the width direction of the storage chamber. The damper is arranged on the end side of the storage chamber, and is characterized in that it opens and closes along the width direction of the storage chamber .

Further, the refrigerator of the present invention is characterized in that the outlet is provided with an outlet duct that changes the traveling direction of the cold air blown from the blower forward.

Further, in the refrigerator of the present invention, a storage container for storing the stored object is arranged in the storage chamber, and the upper part of the flange portion formed at the widthwise end of the storage container is blown out from the outlet. It is characterized in that the cold air is circulated.

Further, in the refrigerator of the present invention, a damper storage area in which a damper is arranged is formed above the evaporator, and the cooling chamber is formed to a position where it overlaps with the damper storage area in a front view. And.

The refrigerator of the present invention includes a compressor that compresses the refrigerant, a condenser that condenses the compressed refrigerant, an expansion means that expands the condensed refrigerant, and an evaporator that evaporates the expanded refrigerant. A refrigerating cycle having the A return port for returning the cold air that has cooled the storage chamber to the cooling chamber side, and a damper for adjusting the amount of the cold air flowing through the air passage connecting the blower and the air outlet are provided. The outlet is located on the rear side of the storage chamber and on one end side in the width direction of the storage chamber, and the return port is on the rear side of the storage chamber and on the other end side in the width direction of the storage chamber. The damper is arranged on the end side of the storage chamber, and is characterized in that it opens and closes along the width direction of the storage chamber . Therefore, for example, the cold air blown from the air outlet arranged near the right rear side of the storage chamber is circulated around the storage chamber and then sucked from the return port arranged near the left rear side of the storage chamber. be able to. Therefore, the cold air blown from the air outlet cannot be directly blown to the stored object stored near the center of the storage chamber, so that it is possible to prevent the stored object from being cooled unevenly. it can.

Further, the refrigerator of the present invention is characterized in that the outlet is provided with an outlet duct that changes the traveling direction of the cold air blown from the blower forward. Therefore, by blowing the cold air forward through the blowing duct, the cold air can be satisfactorily advanced along the peripheral portion of the storage chamber.

Further, in the refrigerator of the present invention, a storage container for storing the stored object is arranged in the storage chamber, and the upper part of the flange portion formed at the widthwise end of the storage container is blown out from the outlet. It is characterized in that the cold air is circulated. Therefore, cold air can satisfactorily flow through the inner peripheral portion of the storage chamber via the flow passage formed above the flange portion.

Further, in the refrigerator of the present invention, a damper storage area in which a damper is arranged is formed above the evaporator, and the cooling chamber is formed to a position where it overlaps with the damper storage area in a front view. And. Therefore, the presence of the damper suppresses the cooling chamber from being compressed, and by securing a sufficient cooling chamber above the evaporator, the cooling chamber is suppressed from being blocked by frost. The width direction of the evaporator can be secured long.

It is a figure which shows the refrigerator which concerns on embodiment of this invention, (A) is the perspective view which looked at the refrigerator from the front, (B) is the perspective view which looked at the refrigerator from the back. It is a side sectional view which shows the refrigerator which concerns on embodiment of this invention. It is a front sectional view which shows the refrigerator which concerns on embodiment of this invention. It is an enlarged view of the front cross section which shows the refrigerator which concerns on embodiment of this invention. It is a perspective view which shows the outlet duct used in the refrigerator which concerns on embodiment of this invention. It is a top sectional view which shows the refrigerator which concerns on embodiment of this invention. It is a figure which shows the refrigerator which concerns on embodiment of this invention, (A) is the front sectional view, (B) is the enlarged view of the upper surface sectional view.

Hereinafter, the refrigerator 10 according to the embodiment of the present invention will be described in detail with reference to the drawings. In the following description, each direction of up, down, front, back, left and right is appropriately used, but the left and right are the left and right when the refrigerator 10 is viewed from the front.

The schematic configuration of the refrigerator 10 of this embodiment will be described with reference to FIG. FIG. 1A is a perspective view of the refrigerator 10 viewed from the front, and FIG. 1B is a perspective view of the refrigerator 10 viewed from the rear.

With reference to FIG. 1A, the refrigerator 10 has a relatively small capacity of, for example, about 100 liters, and is used as an auxiliary by arranging it in a living room or a bedroom, for example. The refrigerator 10 has a heat insulating box body 11, and a wine chamber 20 and a refrigerating room 21 are formed from the upper stage inside the heat insulating box body 11. The wine chamber 20 has a capacity for storing a plurality of bottles of wine as a stored object in a folded state, and stores wine and foods other than wine, and is cooled to 0 ° C. or higher and 20 ° C. or lower. Beverages such as beer other than wine, foods, and the like are stored in the refrigerator chamber 21, and are cooled to, for example, 0 ° C. or higher and 10 ° C. or lower.

The front opening of the wine chamber 20 is closed by a pull-out type heat insulating door 12 having a heat insulating property, and by pulling out the heat insulating door 12 forward, the wine in the collapsed state can be taken out forward.

The front opening of the refrigerator compartment 21 is closed by a drawer-type heat insulating door 13, and by pulling out and opening the heat insulating door 13, food and the like can be taken in and out from the front opening of the refrigerator compartment 21.

In this embodiment, the upper surface of the refrigerator 10 is made of a transparent plate member 14 made of a transparent member. The transparent plate material 14 is made of glass or a synthetic resin that closes an opening formed on the upper surface of the heat insulating box 11 from above and allows visible light to pass through. Further, the heat insulating foam, which is a light-shielding material, is not filled between the transparent plate material 14 and the wine chamber 20. Therefore, the wine stored in the wine chamber 20 can be visually recognized from above through the transparent plate material 14.

As shown in FIG. 1B, a plurality of openings 18 are formed by opening the cover 17 on the rear surface side of the refrigerator 10. From the opening 18, the air heated by the condenser of the refrigeration cycle or the like is discharged to the outside.

The structure of the refrigerator 10 of this embodiment will be further described with reference to the side sectional view of FIG. The heat insulating box 11 which is the main body of the refrigerator 10 includes an outer box 24 made of a plate material such as a steel plate, an inner box 23 made of a synthetic resin plate arranged inside the outer box 24, and an outer box 24 and an inner box 23. It is composed of a heat insulating material 25 made of hard urethane or the like filled in the gap formed between the two.

An opening is formed in the upper surface of the inner box 23, and an opening is also formed in the upper surface of the outer box 24, and these openings are closed from above by a transparent plate member 14 or the like. A transparent plate 33, a spacer frame 27, a transparent plate 32, and a spacer frame 28 are arranged in the upper opening of the wine chamber 20 from below. The transparent plate materials 32 and 33 are made of glass or a transparent synthetic resin that allows visible light to pass through. The spacer frame portions 27, 28 are frame-shaped members made of synthetic resin or the like having the same size as the transparent plate members 32, 33 in a plan view, and are members for securing a gap between the transparent plate members 32, 33. Is. By securing a gap between the transparent plate members 32 and 33, the air existing in the gap functions like a heat insulating material, and the wine chamber 20 described above can be heat-insulated.

Inside the wine chamber 20, a storage container 50 that is pulled out together with the heat insulating door 12 is arranged. Further, a fixed container 53 for fixing the position of the wine 54 is arranged inside the storage container 50. A protrusion 60 projecting upward is formed on the front side of the fixed container 53 so as to extend in the left-right direction, and a notch is formed by cutting out the upper end portion of the protrusion 60 in a substantially semicircular shape. Has been done. A plurality of notches are formed at equal intervals in the protrusions 60. By placing the long and thin neck of the wine 54 in the notch of the fixed container 53, the wine 54 can be placed in a predetermined position inside the storage container 50. By doing so, when the wine chamber 20 is visually recognized from above through the transparent plate material 14 or the like described above, the wine 54 is arranged in a predetermined position in the wine chamber 20 in an orderly manner, so that the appearance thereof can be improved. Can be done. Further, in this figure, the protruding portion 60 for fixing the neck portion of the wine 54 is arranged on the front side inside the storage container 50, but the protruding portion 60 may be arranged on the rear side. By doing so, the user who arranges the neck of the wine 54 on the rear side and visually recognizes the refrigerator 10 from the front side can see the label attached to the wine 54 from the vertical direction. Further, the storage container 50 and the fixed container 53 are made of a transparent synthetic resin that transmits light emitted from below upward.

A light emitting stand is arranged below the storage container 50. By illuminating the wine 54 from below while leaving the light emitted, the user can visually recognize the brand of the wine 54 stored in the wine chamber 20 through the transparent plate material 14.

As described above, the storage chamber formed as the internal space of the inner box 23 is divided into an upper wine chamber 20 and a lower refrigerating chamber 21, and the wine chamber 20 and the refrigerating chamber 21 are separated by a heat insulating partition 38. It is partitioned.

Storage containers 51 and 52 that can be pulled out toward the front are arranged in the refrigerator compartment 21. Since the room temperature of the refrigerator compartment 21 is lower than that of the wine chamber 20 described above, beverages such as beer, foods, and the like can be stored in the storage containers 51 and 52.

On the back side of each of the above-mentioned storage chambers, a blower chamber 41 and a cooling chamber 40 partitioned by partition plates 45 and 46 made of synthetic resin plates are formed. The cooling chamber 40 contains an evaporator 30 for cooling the cold air blown to each storage chamber. The evaporator 30 is connected to a compressor 31, a condenser (not shown), and an expansion means (not shown) via a refrigerant pipe to form a vapor compression refrigeration cycle. Further, the operation of the vapor compression refrigeration cycle is controlled by a control device (not shown). The air blowing chamber 41 functions as an air passage because the cold air cooled by the cooling chamber 40 and blown into each storage chamber once flows into the air blowing chamber 41.

A blower 47 that blows cold air cooled inside the cooling chamber 40 is attached to the partition plate 46 that divides the cooling chamber 40 in the front. Further, an outlet duct 42, an outlet 44, and a return port 43 are formed in the partition plate 45 that partitions the front of the blower chamber 41. Cold air is blown from the outlet duct 42 toward the wine chamber 20, and cold air is blown from the outlet 44 toward the refrigerating chamber 21. The cold air that has cooled the refrigerating chamber 21 returns to the cooling chamber 40 from the return port 43. The cold air that has cooled the wine chamber 20 returns to the cooling chamber 40 via a return port (not shown here).

The operation of the refrigerator 10 having the above configuration is as follows. When the control device operates the compressor 31 based on the output of the temperature sensor that measures the temperature of each storage, the evaporator 30 cools the air inside the cooling chamber 40. The cold air cooled inside the cooling chamber 40 is blown to each storage chamber by the blower 47 that rotates based on the instruction of the control device. Specifically, the cold air blown by the blower 47 is blown to the blower chamber 41 formed in front of the cooling chamber 40, and then blown to the wine chamber 20 via the outlet duct 42. The cold air that has cooled the wine chamber 20 returns to the cooling chamber 40 via a return port (not shown here). A part of the cold air that has flowed into the air blowing chamber 41 is blown from the air outlet 44 to the refrigerating chamber 21. The cold air that has cooled the refrigerating chamber 21 returns to the cooling chamber 40 via the return port 43. The cold air circulates in each storage through such a path, and when the indoor temperature of each storage reaches a predetermined temperature, the control device stops the operation of the compressor 31 and the blower 47. Further, as will be described later, the amount of cold air blown from the blowout duct 42 to the wine chamber 20 is controlled by the damper 34 arranged between the blower 47 and the blowout duct 42, and the configuration and operation of the damper 34 are controlled. Will be described later.

If the cooling of the cold air by the evaporator 30 is continued as described above, frost formation progresses in the evaporator 30, and the efficiency of heat exchange and ventilation decreases due to the frost formation. Therefore, it is periodically removed based on the instruction of the control device. The frost process is taking place.

The air passage in the refrigerator 10 will be further described with reference to FIG. FIG. 3 is a front view of the air passages formed in the refrigerator 10, and each air passage is shown by a dotted line.

First, a blower chamber 41 is formed around the blower 47 to allow the cold air blown by the blower 47 to flow in once. By opening the partition plate 45 in front of the blower chamber 41, a plurality of outlets 44 for blowing cold air into the refrigerating chamber 21 are formed. Further, below the air outlet 44, a return port 43 is formed for returning the cold air that has cooled the refrigerating chamber 21 to the cooling chamber 40 (not shown here).

The upper right portion of the blower chamber 41 and the outlet duct 42 are connected by a blower passage 29. Further, in the middle of the air passage 29, a damper 34 for adjusting the flow rate of the cold air flowing inside the air passage 29 is interposed. When the damper 34 is opened, cold air is supplied to the wine chamber 20 through the air passage 29, and when the damper 34 is closed, cold air is not supplied to the wine chamber 20. Further, the degree of opening of the damper 34 may be adjusted by a control device that receives the output of the temperature sensor that monitors the temperature of the wine chamber 20 so that the temperature inside the wine chamber 20 is in a predetermined temperature band.

A return port 37 for returning the cold air that has cooled the wine chamber 20 is formed near the left end of the wine chamber 20. The cold air flowing into the return port 37 returns to the vicinity of the lower end of the cooling chamber 40 (not shown here) via the return air passage 35 extending in the vertical direction.

The outlet duct 42 and the return port 37 provided in the wine chamber 20 will be described with reference to FIG. The outlet duct 42 is located near the right end of the wine chamber 20 and near the rear end. By arranging the outlet duct 42 at such a position, the outlet duct 42 can be arranged on the side of the wine 54 stored in the wine chamber 20. Therefore, it is possible to prevent most of the cold air blown out from the blowout duct 42 from being directly blown to the bottom of the wine 54 or the like. Further, flange portions 22 are formed at both left and right rear ends of the storage container 50 for storing the wine 54, and the outlet duct 42 is arranged above the flange portion 22. By doing so, the cold air blown out from the blowout duct 42 is not blocked by the flange portion 22. The cold air blown out from the blowout duct 42 passes through the space above the flange portion 22 and flows forward as described later.

The return port 37 is located near the left end of the wine chamber 20 and near the rear end. By arranging the return port 37 at such a position, the cold air blown out from the outlet duct 42 arranged near the right end of the wine chamber 20 is circulated through the wine chamber 20 as a whole, and then the return port 37 It comes to return to the cooling chamber 40 via. Such matters will be described later.

The configuration of the outlet duct 42 described above will be described with reference to the perspective view of FIG. The outlet duct 42 is made of an injection-molded synthetic resin, and when assembled to the partition plate 45 shown in FIG. 2, it functions as an outlet for blowing cold air. The outlet duct 42 has an introduction opening 59, which is an opening facing left, and an outlet opening 58, which is an opening facing forward. The introduction opening 59 and the outlet opening 58 communicate with each other. Under usage conditions, as shown in FIG. 3, the cold air blown by the blower 47 circulates to the right, and after flowing into the inside of the blowout duct 42 from the introduction opening 59, the cold air circulates forward. As a result, the air is blown forward from the air outlet 58.

The configuration of the damper 34 will be described with reference to FIG. In this embodiment, the damper 34 is arranged immediately to the right of the blower 47. Further, the damper 34 is housed in the heat insulating box 11 in a so-called vertical installation state, so that the baffle 39, which controls the shutoff of cold air and the flow rate adjustment, rotates in the left-right direction for opening and closing. Become. As a result, the width of the damper 34 in the left-right direction can be reduced. Further, cold air can be smoothly circulated from the blower 47 toward the outlet duct 42.

The flow of cold air inside the wine chamber 20 will be described in detail with reference to FIG. First, the cold air inside the cooling chamber 40 cooled by the evaporator 30 is blown to the blower chamber 41 by the rotation of the blower 47. A part of the cold air blown to the blower chamber 41 is blown forward to the wine chamber 20 from the vicinity of the rear right end inside the wine chamber 20 via the damper 34 and the blowout duct 42. The blown cold air circulates forward above the flange portion 22 of the storage container 50. After that, the cold air reaches the front right end of the wine chamber 20, then changes its distribution direction to the left, and reaches the front left end of the wine chamber 20. Further, the cold air changes its distribution direction rearward, reaches the rear left end of the wine chamber 20, and returns to the cooling chamber 40 (not shown here) via the return port 37 and the return air passage 35. .. Further, a part of the cold air blown out from the blowout duct 42 circulates in the left-right direction near the central portion of the wine chamber 20, and circulates above the wine 54.

As described above, the outlet ducts 42 and the return ports 37 are arranged at the rear left and right ends of the wine chamber 20, and the cold air is preferentially circulated around the wine chamber 20, so that the temperature distribution in the wine chamber 20 is small. Become. Furthermore, the cold air will not be blown directly onto the wine 54. Therefore, the wine 54 stored in the wine chamber 20 can be cooled to a predetermined temperature as a whole, and its flavor and the like can be stored in a good state.

Next, the related configuration of the damper 34 and the cooling chamber 40 described above will be described with reference to FIG. 7. FIG. 7 (A) is a front sectional view showing the cooling chamber 40 of the refrigerator 10 and a peripheral portion thereof, and FIG. 7 (B) is a top view of a cross section showing a rear portion of the refrigerator 10.

With reference to FIG. 7A, the cooling chamber 40 is shown as a region with hatched dots defined by a rectangle, and an evaporator 30 is arranged in a lower portion inside the cooling chamber 40. Further, a damper storage portion 56, which is an area in which the damper 34 is arranged, is defined in the upper right portion of the cooling chamber 40. The damper storage portion 56 is indicated by hatching with diagonal lines. When viewed from the front, in the damper storage portion 56, the cooling chamber 40 and the damper 34 are arranged so as to overlap each other.

As described above with reference to FIG. 2, the cooling chamber 40 is formed as a space sandwiched between the inner box 23 and the partition plate 46. With reference to FIG. 7B, the cooling chamber 40 is also formed on the rear side of the damper storage portion 56 by separating the inner box 23 and the partition plate 46. By doing so, the cold air cooled by the evaporator 30 moves upward inside the cooling chamber 40 without being hindered by the damper 34, so that the cold air is locally moved to the upper region of the evaporator 30. It is possible to prevent the formation of frost. Therefore, the evaporator 30 can be arranged over substantially the entire width direction of the cooling chamber 40, and the cooling function of the refrigerator 10 can be improved.

Although the embodiments of the present invention have been shown above, the present invention is not limited to the above embodiments.

10 Refrigerator 11 Insulated box 12 Insulated door 13 Insulated door 14 Transparent plate 17 Cover 18 Opening 20 Wine room 21 Refrigerator 22 Flange 23 Inner box 24 Outer box 25 Insulation 27 Spacer frame 28 Spacer frame 29 Blower 30 Evaporator 31 Compressor 32 Transparent plate 33 Transparent plate 34 Damper 35 Return air passage 37 Return port 38 Insulation partition 39 Baffle 40 Cooling chamber 41 Blower chamber 42 Blow duct 43 Return port 44 Blowout 45 Partition plate 46 Partition plate 47 Blower 50 Storage container 51 Storage container 52 Storage container 53 Fixed container 54 Wine 56 Damper storage 58 Blow-out opening 59 Introductory opening 60 Protruding part

Claims (4)

A refrigeration cycle having a compressor for compressing the refrigerant, a condenser for condensing the compressed refrigerant, an expansion means for expanding the condensed refrigerant, and an evaporator for evaporating the expanded refrigerant.
A blower that blows the cold air cooled by the evaporator in the refrigeration cycle from the cooling chamber to the storage chamber,
An outlet from which the cold air blown by the blower is blown into the storage chamber, and
A return port for returning the cold air that cooled the storage chamber to the cooling chamber side, and
A damper for adjusting the amount of the cold air flowing through the air passage connecting the blower and the air outlet is provided.
The outlet is located on the rear side of the storage chamber and on one end side in the width direction of the storage chamber.
The return port is arranged on the rear side of the storage chamber and on the other end side in the width direction of the storage chamber.
The damper is a refrigerator that opens and closes along the width direction of the storage chamber . The refrigerator according to claim 1, wherein the outlet is provided with an outlet duct that changes the traveling direction of the cold air blown from the blower forward. A storage container for storing the object to be stored is arranged in the storage chamber.
The refrigerator according to claim 1 or 2, wherein the cold air blown out from the outlet flows above the flange portion formed at the widthwise end of the storage container. A damper storage area in which the damper is arranged is formed above the evaporator.
The refrigerator according to any one of claims 1 to 3 , wherein the cooling chamber is formed up to a position where it overlaps with the damper storage area in a front view.

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