JP2021139618A - refrigerator - Google Patents

Abstract

To provide a refrigerator which enables a storage chamber to be cooled efficiently.SOLUTION: A refrigerator supplies cold air generated by a cooler to a storage chamber by a blower fan 27a. The blower fan 27a and the guide case 33 are fixed to a wall surface unit 30. Cold air is suctioned from a suction opening 34 of the guide case 33 and blown to the upper side in the guide case 33. The structure maintains efficiency of blowing cold air and efficiently cools the storage chamber.SELECTED DRAWING: Figure 9

Description

The present invention relates to a refrigerator.

Generally, refrigerators used for storing and storing wine bottles and cans, such as wine cabinets, are often used by being built into a system kitchen or the like.

The wine to be stored in such a wine storage is preferably white wine, red wine and their types, but is preferably stored at about 14 ° C to 18 ° C, and the drinking temperature is 7 ° C to 9 ° C. It is said to be around.

Therefore, some wine storages that store wine bottles are equipped with multiple storage chambers with different storage temperature zones, and the cold air cooled in the cooling chamber in the cooling chamber on the back of the main unit is cooled by a cooling fan in each storage chamber. (See, for example, Patent Document 1).

FIG. 16 shows the wine storage described in Patent Document 1, and although this wine storage is an electronically cooled wine storage, it is provided with a plurality of storage chambers 102 and 103 in the main body 101. Then, cold air is generated by the cooler 105 in the cooling chamber 104 provided on the back surface of the storage chambers 102 and 103, and this cold air is supplied to the respective storage chambers 102 and 103 by the cooling fan 106 to cool the storage chambers 102 and 103. It has become.

Japanese Unexamined Patent Publication No. 11-159910 JP-A-2007-309633

The wine cellar described in Patent Document 1 has an advantage that it is easy to use because it has a plurality of storage chambers 102 and 103 having different storage temperature zones. However, since a plurality of coolers 105 and cooling fans 106 are required according to the storage chambers 102 and 103, the cost is high. Moreover, since the cooling fan 106 uses a propeller fan that blows air forward, it requires an air passage portion that goes forward from the discharge ports 107 and 108 of the cooling fan 106, so that the cooling chamber 104 portion is in the front-rear direction. The size of is large. Therefore, in the case of an under-counter type wine storage that is incorporated in a system kitchen and whose depth dimension is regulated, the depth dimension of the storage chambers 102 and 103 must be small, and the depth dimension of the main body must be small. There was a problem that the storage capacity became small.

In order to solve such problems, a single cooler is used to branch and supply the cool air from the cooler to each storage chamber, and the cooling fan can blow air in the circumferential direction to reduce the front-rear dimension. It may be configured by using a capable multi-blade fan (see, for example, Patent Document 2).

FIG. 17 shows the cold air supply configuration described in Patent Document 2, and the refrigerator described in Patent Document 2 is not like a wine cellar, but has a cooler 105 as one. The cooling fan 106 is configured by using a multi-blade fan that can blow air in the circumferential direction and have a smaller dimension in the front-rear direction than a propeller fan that blows air in the forward direction. Further, discharge ports 107 and 108 are provided on the left and right sides of the side wall of the fan casing of the multi-blade fan, and ducts 109 and 110 to each storage chamber are connected to the discharge ports 107 and 108.

By using the cold air supply configuration described in Patent Document 2, each storage chamber can be cooled by one cooler 105, which can be provided at low cost, and by using a multi-blade fan. , The size of the cooling chamber portion in the front-rear direction can be reduced, and the storage capacity of the storage chamber can be increased accordingly.

However, in the configuration described in Patent Document 2, a plurality of discharge ports 107 and 108 of the cooling fan 106 are provided to supply the cold air from the cooling fan 106 along the curved side wall of the cooling fan 106. The distance between the ducts 109 and 110 connected to each storage chamber is wide. Therefore, even if it can be applied to a refrigerator used as a single unit, it cannot be applied as it is as an under-counter type wine storage used by incorporating it in the lower part of the system kitchen. In other words, the under-counter type wine cabinet cannot be applied as it is because the width is too wide as it is because the dimensions in the width direction are also regulated in relation to other equipment installed in the lower part of the system kitchen. .. Further, in the above-mentioned cold air supply configuration, since the amount of cold air supplied to each storage chamber is not controlled, it is difficult to appropriately cool each storage chamber.

The present invention has been made in view of such a point, and an object of the present invention is to provide a refrigerator capable of efficient cooling by reducing the air loss of the cold air discharged from the blower fan.

In order to achieve the above object, the present invention includes a wall surface unit that separates a storage chamber and a cooling chamber, a cooler in the cooling chamber, a blower fan that supplies cold air generated by the cooler to the storage chamber, and the blower. A refrigerator including a guide case that covers a fan, wherein the blower fan and the guide case are fixed to the wall surface unit, and the guide case is a main surface portion that covers the surface of the blower fan on the cooling chamber side. A side wall portion that surrounds the outer periphery of the blower fan is provided, and a suction opening is provided on the main surface portion, and cold air generated by the cooler enters the guide case through the suction opening and enters the side wall portion. It is configured to blow air upward along it.

As a result, it is possible to provide a refrigerator capable of efficiently cooling by reducing the air loss of the cold air discharged from the blower fan.

According to the above configuration, the present invention can provide a refrigerator capable of efficiently cooling the storage chamber by blowing cold air with a blower fan.

External perspective view of the refrigerator according to the first embodiment of the present invention. Half-cut perspective view of the refrigerator Cross-sectional view of the perspective view from the bottom side with the door of the refrigerator opened Perspective view of the inner box of the refrigerator Perspective view of the interior lighting unit provided on the side of the inner box of the refrigerator AA cross-sectional view of FIG. Half-cut perspective view of the interior lighting unit installed on the ceiling of the refrigerator An exploded perspective view showing the refrigerator body, wall unit, and door of the refrigerator. An exploded perspective view of the wall unit of the refrigerator as seen from the storage room side. An exploded perspective view of the wall unit of the refrigerator as seen from the cooling chamber side. Perspective view of the wall unit of the refrigerator as seen from the cooling chamber side BB sectional view of FIG. Front view of the wall unit of the refrigerator as seen from the storage room side (A) Perspective view before mounting the cooling fan on the wall surface unit of the refrigerator, (b) Perspective view of the wall surface unit after mounting the cooling fan. An exploded perspective view of the wall unit of the refrigerator Sectional view showing a conventional refrigerator (A) Front view showing cold air supply configuration in other conventional refrigerators, (b) Side view of the same

The first invention is a wall surface unit that separates a storage chamber and a cooling chamber, a cooler in the cooling chamber, a blower fan that supplies cold air generated by the cooler to the storage chamber, and a guide that covers the blower fan. A refrigerator including a case, wherein the blower fan and the guide case are fixed to the wall surface unit, and the guide case has a main surface portion covering the surface of the blower fan on the cooling chamber side and the blower fan. A side wall portion that surrounds the outer periphery of the wall surface is provided, and a suction opening is provided in the main surface portion. It is configured to blow air.

As a result, it is possible to reduce the air loss of the cold air discharged from the blower fan, and to obtain a refrigerator capable of efficient cooling.

In the second invention, in the first invention, the guide case is provided in a spiral shape whose diameter increases in accordance with the rotation direction of the rotation axis of the blower fan.

As a result, cold air can be efficiently blown.

In the third invention, in the first or second invention, the cooler is located below the blower fan, and the guide case is formed to have a smaller depth dimension than the cooler with reference to the wall surface unit. ing.

As a result, it is possible to secure a space for guiding the cold air generated by the cooler to the guide case.

The fourth invention is a configuration in which a space is formed behind the suction opening of the guide case in any one of the first to third inventions.

This makes it possible to secure a suction space for the suction opening.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, a damper device for controlling the amount of cold air supplied to the storage chamber is provided above the wall surface unit, and the damper device is covered with the guide case. It is a structure that has been broken.

As a result, since the damper device is covered with the guide case, it is possible to suppress the leakage of cold air from the connecting portion, simplify the configuration, and improve the quality.

A sixth aspect of the present invention is the fifth aspect of the present invention, wherein the damper device changes the direction of the cold air blown upward from the blower fan forward.

As a result, the cold air blown upward by the blower fan can be blown forward to cool the storage chamber.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the wall surface unit is composed of a storage chamber side wall surface plate facing the storage chamber and a cooling chamber side wall surface plate facing the cooling chamber. A blowout air passage is formed between the side plate of the storage chamber and the side plate of the cooling chamber to communicate with the guide case.

As a result, the storage chamber can be efficiently cooled.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment 1)
First, the overall configuration of the refrigerator will be described with reference to FIGS. 1 to 7.

FIG. 1 is an external perspective view of the refrigerator according to the first embodiment of the present invention, FIG. 2 is a half-cut perspective view of the refrigerator, FIG. A perspective view of the inner box of the refrigerator, FIG. 5 is a perspective view of an internal lighting unit provided on the side surface of the inner box of the refrigerator, FIG. 6 is a sectional view taken along the line AA of FIG. 5, and FIG. 7 is a ceiling surface of the refrigerator. It is a half-cut perspective view of the provided interior lighting unit.

In FIGS. 1 to 7, in the refrigerator of the present embodiment, a partition plate 2 is provided in the refrigerator main body 1 to form two upper and lower storage chambers 3 and 4, and further, in each of the storage chambers 3 and 4. There is a shelf 5 on which a wine bottle or the like is placed. The partition plate 2 may or may not have a heat insulating material inside.

As shown in FIG. 2, the refrigerator main body 1 has a metal (for example, iron plate) outer box 6 that opens forward, an inner box 7 made of hard resin (for example, ABS), and these outer boxes 6 and inner boxes. It is composed of a foamed heat insulating material (not shown) such as hard urethane which is foam-filled between 7 and 7. As shown in FIG. 3, lighting units 8 and 9 that irradiate the insides of the storage chambers 3 and 4 are provided on both sides of the opening and the ceiling surface opening of the refrigerator body 1.

As shown in FIGS. 4 to 6, the lighting units 8 provided on both sides of the lighting units 8 and 9 are attached to the pedestal 11 mounted inside the lighting opening 10 of the inner box 7 and the pedestal 11. The lighting board 12 is composed of a lighting board 12, LEDs 13 in a row in the vertical direction of the lighting board 12, and a cover 14 covering the front surface of the LED 13.

The cover 14 is formed so as to have a substantially L-shaped cross section, wrap around to the front end surface 7a of the inner box 7, and cover the inner box 7. That is, the cover 14 includes a front cover portion 14a and a side cover portion 14b. Then, as shown in FIG. 6, the side cover portion 14b has an engaging rib 15 provided so as to be inclined to the side opposite to the front end surface 7a side. The cover 14 is attached by press-fitting the engaging rib 15 into the holding hole 16 provided in the pedestal 11. As a result, the front cover portion 14a of the cover 14 comes into pressure contact with the front end surface 7a of the inner box 7.

On the other hand, as shown in FIG. 7, the lighting unit 9 provided in the ceiling surface opening portion of the refrigerator main body 1 is incorporated in the refrigerator main body 1, that is, the recess 9a provided in the ceiling surface front end portion of the inner box 7. The pedestal of the lighting unit 9 is formed to be wide so as to form a ceiling wall surface. The cover of the lighting unit 9 has a simple planar shape.

Further, the front surfaces of the storage chambers 3 and 4 of the refrigerator body 1 can be opened and closed by a rotatable door 20. As shown in FIG. 2, the door 20 has a central plate 21 composed of a triple glass plate unit or the like filled with a heat insulating gas such as argon gas, and acts as a heat insulating door while storing chambers 3 and 4. The inside can be seen from the outside. The door 20 is provided with a handle 22.

Further, an operation display unit 23 (see FIG. 8) for setting and displaying the temperature of each of the storage chambers 3 and 4 is provided substantially in the center of the upper part of the door 20. The operation display unit 23 can be operated by touching the door 20 from the front side. In addition, the content displayed on the operation display unit 23 can be visually recognized from the front.

Further, a cooling chamber 25 is provided on the back surface of the refrigerator main body 1, and a cooler 26 and a cooling fan 27 are installed. A machine room 28 is provided below the refrigerator body 1, that is, below the cooling room 25. The cooler 26 generates cold air in the cooling chamber 25 by evaporation of the refrigerant compressed by the compressor 29 incorporated in the machine chamber 28. Further, the cooling fan 27 supplies the cold air generated in the cooling chamber 25 to the storage chambers 3 and 4, and then collects the cold air in the cooling chamber 25 and circulates it to the storage chambers 3 and 4 again.

Hereinafter, the cold air supply configuration will be described with reference to FIGS. 8 to 15.

8 is an exploded perspective view of the refrigerator, FIG. 9 is an exploded perspective view of the wall unit of the refrigerator as viewed from the storage chamber side, FIG. 10 is an exploded perspective view of the wall unit of the refrigerator as viewed from the cooling chamber side, and FIG. 11 is an exploded perspective view. A perspective view of the wall unit of the refrigerator as seen from the cooling chamber side, FIG. 12 is a sectional view taken along the line BB of FIG. 11, and FIG. 13 is a front view of the wall unit of the refrigerator as viewed from the storage chamber side, FIG. 14 (a). Is a perspective view of the wall surface unit of the refrigerator before the cooling fan is mounted, FIG. 15B is a perspective view of the wall surface unit after the cooling fan is mounted, and FIG. 15 is an exploded perspective view of the wall surface unit of the refrigerator.

The air passage for supplying cold air to the storage chambers 3 and 4 is formed in the wall surface unit 30 that separates the storage chambers 3 and 4 from the cooling chamber 25.

As shown in FIGS. 9 and 10, the wall surface unit 30 is configured by fitting the storage chamber side wall surface plate 31 facing the storage chambers 3 and 4 and the cooling chamber side wall surface plate 32 facing the cooling chamber 25. It is done.

The cooling chamber side wall plate 32 is provided with a cooling fan 27 at a portion of the surface on the cooling chamber side facing the upper storage chamber 3 (hereinafter, referred to as an upper storage chamber). The cooling fan 27 is a multi-blade fan that blows air in the circumferential direction like a blower fan. The cooling fan 27 is configured by covering a multi-blade fan 27a having a plurality of blades parallel to the rotation axis with a guide case 33. The guide case 33 includes a main surface portion that covers the surface of the multi-blade fan 27a on the cooling chamber side, and a side wall portion that surrounds the outer periphery of the multi-blade fan 27a in the rotational direction. A suction opening 34 is provided on the main surface of the guide case 33. Further, a discharge opening 35 is provided at one upper portion of the side wall portion.

The main portion of the side wall portion is provided in an Archimedes spiral shape centered on the rotation axis of the multi-blade fan 27a and whose diameter increases in accordance with the rotation direction of the rotation axis.

Further, a damper device 36 is provided in the discharge opening 35 of the cooling fan 27. As shown in FIG. 9, the damper device 36 is driven by a damper frame 39 forming the first opening 37 and the second opening 38 and a drive source (not shown) such as a motor, and each of the openings. It is provided with a first flap 40 and a second flap 41 for opening and closing.

The first opening 37 and the second opening 38 of the damper device 36 are provided adjacent to each other via a drive source. The first opening 37 and the second opening 38 are located corresponding to the discharge opening 35 of the cooling fan 27. Then, in the present embodiment, as shown in FIGS. 10 and 11, the case 42 of the damper device 36 is integrally formed on the upper part of the guide case 33 of the cooling fan 27 to cover the multi-blade fan 27a and the damper device 36. ing. That is, the cooling fan 27 and the damper device 36 are integrated and directly connected.

As shown in FIG. 13, the rotation direction of the rotation axis of the multi-blade fan 27a is counterclockwise when viewed from the storage chamber side. That is, the rotation shaft rotates from the first opening 37 side, which will be described later, to the second opening 38 side. The first opening 37 is an opening provided in the direction opposite to the rotation of the rotation shaft, and the second opening is an opening provided in the rotation direction of the rotation shaft.

Further, the rotation shaft of the cooling fan 27 is provided so as to be biased toward the second opening 38 side, which is an opening located on the rotation direction side of the cooling fan 27 among the openings of the damper device 36. Further, the first outlet air passage 47 communicating with the first opening 37 is longer than the second outlet air passage 48 communicating with the second opening 38.

Further, the cooling fan 27, the damper device 36, the guide case 33, and the case 42 are attached to the side wall surface plate 32 of the cooling chamber to be unitized into the wall surface unit 30, and the wall surface unit 30 is attached to the refrigerator body 1. It can be incorporated.

The guide case 33 of the cooling fan 27 and the case 42 of the damper device 36 may be configured separately and connected later.

Further, in a portion of the cooling chamber side wall surface plate 32 facing the damper device 36, a first through hole 43 and a second through hole 44 correspond to the first opening 37 and the second opening 38 of the damper device 36. Each is formed.

As shown in FIG. 9, air passage forming ribs 45 and 46 are provided on the opposing surfaces of the cooling chamber side wall surface plate 32 and the storage chamber side wall surface plate 31, and the first through hole 43 is connected to the lower storage chamber 4. A first outlet air passage 47 for supplying cold air and a second outlet air passage 48 for supplying cold air from the second through hole 44 to the upper storage chamber 3 are formed. Further, a return air passage forming rib 49 is provided on the opposite surfaces of the cooling chamber side wall plate 32 and the storage chamber side wall plate 31, so that the return air passage 50 shared by the upper storage chamber 3 and the lower storage chamber 4 is provided. It is provided. The return air passage 50 is an air passage for returning the cold air supplied to the storage chambers 3 and 4 to the cooling chamber 25.

A lower outlet 51a is provided at a portion of the cooling chamber side wall surface plate 32 facing the first outlet air passage 47, and an upper outlet 51b is provided at a portion facing the second outlet air passage 48. Further, a lower return port 52a is formed in a portion facing the lower storage chamber 4, and an upper return port 52b is formed in a portion facing the upper storage chamber 3. A notch opening is formed at the lower end of the side wall plate 32 of the cooling chamber, and a cold air return port 52 for returning the cold air from the return air passage 50 to the cooling chamber 25 is provided.

That is, the first outlet air passage 47 is provided with a first through hole 43 at one end and a lower outlet 51a at least at the other end. The second outlet air passage 48 is provided with a second through hole 44 at one end and an upper outlet 51b at least at the other end.

In the present embodiment, as shown in FIG. 15, the first outlet air passage 47 is configured to supply cold air to the lower storage chamber 4 through a substantially central portion of the return air passage 50, and the upper return port 52b. Are provided so as to be dispersed on both the left and right sides of the first blower air passage 47. In other words, the return air passage 50 is divided into left and right by the first blow air passage 47. An upper return port 52b is provided at each end of the return air passage 50 divided into left and right.

Further, as shown in FIG. 15, in the portion where the first blown air passage 47 and the return air passage 50 are adjacent to each other, the air passage forming rib 45 forming the first blow air passage 47 and the return air passage 50 are provided. The return air passage forming rib 49 to be formed is arranged with a gap. That is, a heat insulating layer 54, which is an air layer, is formed between the ribs for forming the air passage. That is, the portion has a structure in which a heat insulating layer 54 is formed between the two as a multi-wall structure.

Similarly, in the portion where the first outlet air passage 47 and the second outlet air passage 48 are adjacent to each other, the air passage forming rib 45 forming the first outlet air passage 47 and the second outlet air passage 48 are provided. The air passage forming rib 46 to be formed is arranged with a gap. That is, a heat insulating layer 54, which is an air layer, is formed between the ribs for forming the air passage.

In the present embodiment, only a part of the portion where the first outlet air passage 47 and the return air passage 50 are adjacent to each other has a multi-wall configuration, but it is preferable to have a multi-wall configuration in all the regions.

Further, the ribs for forming the first air passage 47, the second air passage 48, and the return air passage 50 are provided on both the side wall plate 32 of the cooling chamber and the side wall plate 31 of the storage chamber. However, this may be provided only on either side, and is not particularly limited.

Next, the action and effect of the refrigerator configured as described above will be described.

First, the flow of cold air will be described. The cold air is generated in the cooling chamber 25 provided with the cooler 26 by driving the compressor 29. The cold air generated in the cooling chamber 25 is sucked into the cooling fan 27 and supplied from the first through hole 43 and the second through hole 44 to the first outlet air passage 47 and the second outlet air passage 48 via the damper device 36. NS.

The cold air supplied to the first outlet air passage 47 and the second outlet air passage 48 is supplied from the upper outlet 51b and the lower outlet 51a to the upper storage chamber 3 and the lower storage chamber 4, and each of these storage chambers 3 Cool the wine bottle in 4.

Then, the cold air after cooling the upper storage chamber 3 is sucked into the return air passage 50 from the upper return port 52b, and the cold air after cooling the lower storage chamber 4 is sucked into the return air passage 50 from the lower return port 52a, and merges to return the cold air. Collected from the mouth 52 to the cooling chamber 25.

The cold air supplied to the storage chambers 3 and 4 is separately controlled by the damper device 36, and the storage chambers 3 and 4 are cooled to a predetermined temperature.

Further, the cooling temperature of each of the storage chambers 3 and 4 can be set by touching the operation display unit 23 provided on the upper front surface of the door 20. Further, the cooling temperature of each of the storage chambers 3 and 4 can be known from the temperature displayed on the operation display unit 23.

Since the wine bottles stored in the storage chambers 3 and 4 can be visually observed through the central plate 21, the user can quickly take out the desired wine bottle without opening the door 20 and searching for the desired wine bottle. ..

Here, the refrigerator is configured to supply the cold air generated in one cooling chamber 25 to the two storage chambers 3 and 4 for cooling, and the cold air supplied to each storage chamber is controlled by the damper device 36. Therefore, each storage chamber can be cooled to a different temperature zone. Moreover, since the damper device 36 individually and independently controls the cold air to each storage chamber by the first flap 40 and the second flap 41, it can be accurately cooled to a predetermined temperature.

Further, since the cooling fan 27 that supplies the cold air to the storage chambers 3 and 4 is composed of a multi-blade fan 27a that blows air in the circumferential direction, it is necessary to provide a forward air passage such as a propeller fan that blows forward. There is no. Also, the damper device 36 does not need to be provided in front of the fan. Therefore, the dimensions of the cooling chamber 25 provided with the cooler 26 and the cooling fan 27 in the front-rear direction can be reduced, and the front-rear dimensions of the storage chambers 3 and 4 can be increased by that amount to increase the storage capacity.

In particular, in this refrigerator, the damper device 36 of the cooling fan 27 is provided with the first through hole 43 and the second through hole 44 in the cooling chamber side wall surface plate 32 of the wall surface unit 30 that partitions the storage chambers 3 and 4 and the cooling chamber 25. Since the first and second outlet air passages 47 and 48 are communicated with each other, the dimensions in the front-rear direction can be further reduced. That is, the cold air from the cooling fan 27 is directly supplied to the first blown air passage 47 and the second blown air passage 48, respectively, through the first through hole 43 and the second through hole 44, respectively. Therefore, the cooling fan 27, the first outlet air passage 47, and the second outlet air passage 48 are compared with the one in which the cooling fan 27 and the first outlet air passage 47 and the second outlet air passage 48 are connected by a duct member or the like. The positional relationship between the front and back and the top and bottom can be minimized. Thereby, the storage capacity of the storage chambers 3 and 4 can be further increased.

That is, the air passage configuration can be made compact by the above-described configuration, and the refrigerator can be made into a refrigerator having a large storage capacity for the external dimensions of the main body and capable of high cooling control.

Further, the guide case 33 of the cooling fan 27 has a discharge opening 35 at one place. The discharge opening 35 is covered with a damper device 36, and the first opening 37 and the second opening 38 of the damper device 36 are adjacent to each other. Therefore, the first outlet air passage 47 and the second outlet air passage 48 connected to the first opening 37 and the second opening 38, respectively, can be installed adjacent to each other to narrow the distance between them. As a result, the width dimension of the main body can be suppressed within a predetermined dimension, and it can be easily applied as an under-counter type wine storage or the like in which the width dimension of the main body is regulated.

Further, since the guide case 33 of the cooling fan 27 and the case 42 of the damper device 36 are integrated, the number of parts can be reduced. Moreover, it is possible to prevent cold air leakage and the like, which may be a concern when the guide case 33 of the cooling fan 27 and the case 42 of the damper device 36 are separately connected. Therefore, the quality can be improved while simplifying the configuration.

On the other hand, the guide case 33 of the cooling fan 27 has a configuration in which the side wall covering the outer periphery of the multi-blade fan 27a is formed in an Archimedes spiral centered on the rotation axis of the multi-blade fan 27a. The air loss of the cold air discharged from the air can be minimized, and efficient cooling becomes possible.

Moreover, the rotation shaft of the cooling fan 27 is provided so as to be biased toward the opening located on the rotation direction side of the cooling fan 27 of the damper device 36, and the second opening 38 side in the present embodiment. The cold air from the multi-blade fan 27a, which tends to be unevenly supplied to the side opposite to the fan rotation direction, can be supplied to the first opening 37 and the second opening 38 substantially evenly. Thereby, each storage chamber 3 and 4 can be cooled efficiently.

Further, even with the above configuration, the bias of cold air tends to remain. Therefore, in the present embodiment, the first outlet air passage 47 communicating with the first opening 37, which tends to be supplied with a large amount of cold air, is made longer than the second outlet air passage 48 communicating with the second opening 38. As a result, the air passage resistance on the side of the first opening 37 to which a large amount of cold air is supplied becomes large, and the amount of cold air blown out from the first outlet air passage 47 and the second outlet air passage 48 is made more uniform to make each storage chamber more uniform. It can be cooled efficiently.

In addition, since the upper return port 52b for returning the cold air from the upper storage chamber 3 to the return air passage 50 is provided to be dispersed on the left and right sides of the first outlet air passage 47, the cold air in the upper storage chamber 3 is on the upper side. It will be dispersed on both sides of the storage chamber 3. As a result, the cooling of the upper storage chamber 3 can be made uniform with little bias.

Further, the portion where the first outlet air passage 47 and the second outlet air passage 48 are adjacent to each other, and the portion where the first outlet air passage 47 or the second outlet air passage 48 and the return air passage 50 are adjacent to each other are a heat insulating layer. Since it has a multi-wall configuration having 54, heat transfer between each air passage can be suppressed to a minimum, and efficient cooling becomes possible.

Although the refrigerator according to the present invention has been described above using the above-described embodiment, the present invention is not limited to this, and various modifications can be made within the range of achieving the object of the present invention. Needless to say.

For example, the refrigerator of this embodiment is an under-counter type refrigerator that is used by being built into a system kitchen or the like, but it may be a refrigerator that is used without being built in, or as a refrigerator suitable for storing wine. As shown, it may be an ordinary refrigerator that cools and stores foodstuffs.

Further, in this embodiment, the case where there are two storage chambers is illustrated, but the storage chambers may be two or more and their respective temperature zones may be different.

As described above, the embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. That is, the scope of the present invention is indicated by the scope of claims rather than the above description, and it is intended that all modifications within the meaning and scope equivalent to the scope of claims are included.

As described above, the present invention can be a refrigerator capable of increasing the storage capacity while keeping the width dimension of the main body within a predetermined dimension. Therefore, it can be widely applied not only to wine cellars but also to under-counter refrigerators for general use and commercial use.

1 Refrigerator body 3 Storage room (upper storage room)
4 Storage room (lower storage room)
5 Shelf 6 Outer box 7 Inner box 8, 9 Lighting unit 9a Recess 11 Pedestal 12 Lighting board 13 LED
14 Cover 14a Front cover 14b Side cover 15 Engagement rib 16 Holding hole 20 Door 21 Center plate 22 Handle 25 Cooling room 26 Cooler 27 Cooling fan 27a Multi-wing fan 28 Machine room 29 Compressor 30 Wall unit 31 Storage room side wall Face plate 32 Cooling chamber side wall face plate 33 Guide case 34 Suction opening 35 Discharge opening 36 Damper device 37 1st opening 38 2nd opening 39 Damper frame 40 1st flap 41 2nd flap 42 Case 43 1st through hole 44 2nd through hole 45 Air passage forming rib 46 Air passage forming rib 47 1st outlet air passage 48 2nd outlet air passage 49 Return air passage forming rib 50 Return air passage 51a Lower air outlet 51b Upper air outlet 52a Downward Port 52b Top return port 52 Cold air return port 54 Insulation layer

Claims (7)

A wall surface unit that separates the storage chamber and the cooling chamber, a cooler in the cooling chamber, a blower fan that supplies the cold air generated by the cooler to the storage chamber, and a guide case that covers the blower fan are provided. In a refrigerator, the blower fan and the guide case are fixed to the wall surface unit, and the guide case has a main surface portion that covers the surface of the blower fan on the cooling chamber side and a side wall portion that surrounds the outer periphery of the blower fan. The main surface portion is provided with a suction opening, and the cold air generated by the cooler enters the guide case through the suction opening and is blown upward along the side wall portion. Refrigerator to do. The refrigerator according to claim 1, wherein the guide case is provided in a spiral shape whose diameter increases in accordance with the rotation direction of the rotation shaft of the blower fan. The first or second aspect of the present invention, wherein the cooler is located below the blower fan, and the guide case is formed to have a smaller depth dimension than the cooler with reference to the wall surface unit. refrigerator. The refrigerator according to any one of claims 1 to 3, wherein a space is formed behind the suction opening. The aspect according to any one of claims 1 to 4, wherein a damper device for controlling the amount of cold air supplied to the storage chamber is provided on the upper part of the wall surface unit, and the damper device is covered with the guide case. The listed refrigerator. The refrigerator according to claim 5, wherein the damper device changes the direction of the cold air blown upward from the blower fan forward. The wall surface unit is composed of a storage chamber side wall surface plate facing the storage chamber and a cooling chamber side wall surface plate facing the cooling chamber, and forms an outlet air passage between the storage chamber side wall surface plate and the cooling chamber side wall surface plate. The refrigerator according to any one of claims 1 to 6, wherein the refrigerator communicates with the guide case.

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