refrigerator

Abstract

To provide a refrigerator in which dimension of a duct for feeding cool air is minimized, and which therefore actualizes high efficiency and small size.SOLUTION: The refrigerator comprises at least a freezing chamber 13 (a first storage chamber) and a refrigeration chamber 12 (a second storage chamber), and further comprises: a blower fan 32 arranged on the back side of the freezing chamber 13; a fan casing 35 arranged on the outer periphery of the blower fan 32 and formed in an approximately swirling shape to guide air blown out from the blower fan 32; and a first opening portion 38 communicating the inside of the fan casing 35 with the freezing chamber 13.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to refrigerators. [Background technology]

[0002] Patent Document 1 discloses a refrigerator having a refrigerator body having an outer box and an inner box, a refrigerator compartment provided at the top of the refrigerator body, a vegetable compartment provided at the bottom of the refrigerator body, a freezer compartment provided between the vegetable compartment and the refrigerator compartment, a storage compartment rear member provided at the back of the freezer compartment, a cooler cover provided behind the storage compartment rear member, a cooler compartment provided between the cooler cover and the inner box, a cooler provided in the cooler compartment, a defrost heater provided below the cooler, and a freezer compartment return port provided at the bottom of the storage compartment rear member and communicating between the freezer compartment and the cooler compartment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-060188 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a refrigerator that is highly efficient and compact by minimizing the ducts for sending cool air. [Means for solving the problem]

[0005] A refrigerator according to the present disclosure includes at least a first storage compartment and a second storage compartment, a blower fan disposed on a rear side of the first storage compartment, a fan casing disposed on an outer periphery of the blower fan and formed in a substantially spiral shape to guide air blown out from the blower fan, and a first opening communicating an inside of the fan casing with the first storage compartment. a cooling chamber in which an evaporator is installed is formed on the rear side of the first storage chamber, the cooling chamber has a first partition plate on the first storage chamber side, the first opening is formed in the first partition plate, and the blower fan and the fan casing are fixed to the first partition plate. It is characterized by: Effect of the Invention

[0006] In the refrigerator according to the present disclosure, the cool air sent from the blower fan to the fan casing can be sent directly to the freezer compartment through the first opening. This eliminates the need for a duct to cool the freezer compartment, making it possible to reduce the size of the refrigerator, and by arranging the blower fan and the freezer compartment at a short distance, the freezer compartment can be cooled efficiently. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a vertical cross-sectional view of a refrigerator according to a first embodiment. [Diagram 2] FIG. 1 is a rear view of a main part showing a cooling chamber and a duct in the first embodiment. [Diagram 3] FIG. 1 is a rear view showing a blower fan portion according to the first embodiment. [Figure 4] FIG. 3 is a cross-sectional view showing a blower fan portion in the first embodiment. [Diagram 5] FIG. 1 is a rear view of a blower fan portion according to the first embodiment, seen from the cooling chamber side. [Figure 6] FIG. 1 is a front view of a blower fan portion according to the first embodiment, seen from the freezer compartment side. [Figure 7] FIG. 1 is a rear view showing the first partition plate in the first embodiment, as viewed from the cooling chamber side; [Figure 8] FIG. 1 is an exploded perspective view of a first partition plate and a blower fan according to a first embodiment, as viewed from a cooling chamber side; [Figure 9] FIG. 1 is an exploded perspective view of a first partition plate and a second partition plate portion according to the first embodiment, as viewed from the cooling chamber side; [Figure 10] FIG. 1 is an exploded perspective view of a first partition plate and a second partition plate portion according to the first embodiment, as viewed from the freezer compartment side; [Figure 11] 13 is a front view of a fan casing according to another embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] (The knowledge and other information that formed the basis of this disclosure) At the time the inventors came up with the idea of ​​the present disclosure, there was technology available that had a refrigerator compartment, a vegetable compartment, and a freezer compartment, each compartment connected to a cooler compartment by a duct, and cold air generated from the cooler compartment was sent to the refrigerator compartment, the vegetable compartment, and the freezer compartment.

[0009] In the conventional technology, air is supplied from a blower fan into a refrigerator through a duct. However, when a refrigerator has multiple compartments, such as a refrigerator compartment and a freezer compartment, it is necessary to connect a duct to each compartment, which requires securing installation space for the ducts, resulting in an increase in size of the refrigerator. The inventors discovered a problem that the distance of the air path caused by the ducts also increases, which may reduce air supply efficiency. In order to solve this problem, the inventors came up with the subject matter of the present disclosure. Therefore, the present disclosure provides a refrigerator that achieves high efficiency and compactness by minimizing the ducts that send cool air.

[0010] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, in some cases, more detailed explanations than necessary may be omitted. For example, detailed explanations of already well-known matters or duplicate explanations of substantially the same configurations may be omitted. It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to the drawings. [1-1. Configuration] FIG. 1 is a vertical cross-sectional view of a refrigerator in a first embodiment. FIG. 2 is a rear view showing a cooling compartment and a duct. FIG. 3 is a rear view showing a blower fan portion as viewed from the cooling compartment side. FIG. 4 is a cross-sectional view showing the blower fan portion. FIG. 5 is a rear view showing the blower fan portion as viewed from the cooling compartment side. FIG. 6 is a front view showing the blower fan portion as viewed from the freezer compartment side. FIG. 7 is a rear view showing a first partition plate as viewed from the cooling compartment side. FIG. 8 is an exploded perspective view of the first partition plate and the blower fan as viewed from the cooling compartment side. FIG. 9 is an exploded perspective view of the first partition plate and the second partition plate portion as viewed from the cooling compartment side. FIG. 10 is an exploded perspective view of the first partition plate and the second partition plate portion as viewed from the freezer compartment side.

[0012] As shown in Fig. 1, refrigerator 10 has a box-shaped housing 11 with an open front. A refrigerating chamber 12 with a temperature of about 2°C to 4°C is formed in the upper part of housing 11 as a second storage chamber, and a freezer chamber 13 with a temperature of about -18°C is formed in the lower part of housing 11 as a first storage chamber. A low-temperature chamber 60 with a temperature of about -5°C to 1°C is formed between refrigerating chamber 12 and freezer chamber 13 as a third storage chamber. In the refrigerator 10, a side-opening door 14 is provided at the opening on the front side of the refrigeration compartment 12 so as to be able to open and close freely. A side-opening door 61 is provided at the opening on the front side of the freezer compartment 13 so as to be able to open and close freely, and a drawer case 15 for storing food is provided inside. In addition, a drawer door 62 is provided at the opening on the front side of the low-temperature compartment 60 so as to be able to open and close freely, and a drawer case 63 which is linked to the opening and closing of the drawer door 62 is provided.

[0013] 2 to 10, a cooling compartment 20 is provided on the rear side of the freezer compartment 13 of the refrigerator 10. A duct 21, which is located on the rear side of the refrigeration compartment 12 and communicates in the vertical direction, is connected above the cooling compartment 20. The duct 21 is provided with a refrigeration air outlet (not shown) communicating with the refrigeration compartment 12 . A heat insulating wall 64 is provided between the freezing chamber 13 and the low temperature chamber 60. A cold air passage 64a that connects the cooling chamber 20 and the duct 21 is formed in the heat insulating wall 64. This allows the cold air generated in the cooling chamber 20 to be introduced into the duct 21 via the cold air passage 64a.

[0014] As shown in FIGS. 2 and 3, the cold air passage 64a is provided with a twin damper 65 for adjusting the amount of cold air flowing into the refrigeration compartment 12 and the low-temperature compartment 60. As shown in FIG. As shown in FIG. 2, the twin damper 65 includes a low-temperature room damper 65a as a third storage room damper disposed adjacent to the low-temperature room damper 65a in the left-right width direction of the refrigerator 10. Second storage chamber damper The low temperature room damper 65a and the refrigerator room damper 65b are controlled in accordance with the room temperatures of the low temperature room 60 and the refrigerator room 12, respectively, and independently open and close the dampers to adjust the amount of cold air to the low temperature room 60 and the refrigerator room 12.

[0015] A first partition plate 30 is provided on the front side of the cooling compartment 20. A second partition plate is provided on the rear side of the freezing compartment 13. A cold air passage 41 is formed between the first partition plate 30 and the second partition plate 40. An inclined surface 31 is formed on the upper part of the first partition plate 30, inclined so as to move upward and away from the second partition plate 40. A blower fan 32 is attached to the rear side of the inclined surface 31.

[0016] The blower fan 32 is classified as a type of blower fan. Blower fans also include axial fans. In general, axial fans have rotating blades attached to the center of a frame, sucking in air from the front of the rotating blades and blowing it out the rear. Conventional refrigerators often use axial fans to circulate cool air.

[0017] In contrast, blower fan 32 includes fan unit 34 with rotating blades 33 and fan casing 35 that covers rotating blades 33, and is configured to draw air in from the front of rotating blades 33 and blow it out the side (corresponding to the upper side in FIG. 5) of rotating blades 33. Fan casing 35 is formed into a casing shaped along an involute curve based on center of rotation C1 of rotating blades 33, in other words, formed into a substantially spiral casing.

[0018] As the rotating blades 33 rotate, the wind flows radially from the center of rotation C1 and along the inner surface of the fan casing 35, causing the wind to blow out from an opening provided on the side of the fan casing 35 (corresponding to the second opening 36 provided at the top in this embodiment). In general, the blower fan 32 can easily obtain a higher static pressure than an axial fan of a similar size. Also, the number of rotating blades 33 of the blower fan 32 is generally greater than the number of rotating blades of an axial fan, which also makes it easier to obtain a high static pressure.

[0019] 3 and 5, the fan casing 35 is formed in a generally spiral shape in which the distance from the center of rotation C1 gradually increases in the clockwise direction. A second opening 36 communicating with the lower end of the cold air passage 64a is formed in the uppermost part of the fan casing 35. A cold air intake 37 for taking in cold air from the cooling chamber 20 into the fan unit 34 is formed in the central part of the fan casing 35 facing the rotation shaft of the blower fan 32.

[0020] The fan casing 35 has a connection portion 70 which spreads out from the upper portion toward both sides of the fan casing 35 and is connected to the cool air passage 64a via the second opening portion 36. The airflow generated by the fan unit 34 is blown outward mainly from the outer downstream side of the fan casing 35 to the connection portion 70 due to centrifugal force.

[0021] The refrigerator compartment damper 65b is disposed at a position corresponding to the second opening 36 in the tangential direction of the downstream side of the fan casing 35 and the connection part 70. The low temperature compartment damper 65a is disposed at a position corresponding to the second opening 36 in the direction along the connection part 70 located on the downstream side of the airflow. That is, part of the airflow blown out from the fan casing 35 flows toward the low-temperature room damper 65a due to centrifugal force, and the amount of airflow to the low-temperature room damper 65a can be secured. Also, since the refrigerator room damper 65b is disposed in the tangential direction at the point from the outer downstream side to the connection part 70, part of the airflow that flows from the downstream side of the fan casing 35 toward the outside of the fan casing 35 due to centrifugal force can be guided in the tangential direction, and the amount of airflow in the direction of the refrigerator room damper 65b can be secured.

[0022] This prevents the airflow from flowing biased toward the low-temperature chamber damper 65a above the second opening 36 along the fan casing 35 when the airflow through the fan casing 35 is blown out from the second opening 36, and ensures the flow rate of cold air to the refrigerator chamber damper 65b. Also, by arranging the low-temperature chamber damper 65a, which adjusts the amount of cold air to the low-temperature chamber, which is at a lower temperature than the refrigerator chamber, in a position corresponding to the second opening 36 in the tangential direction of the fan casing 35, the amount of airflow can be ensured, and cooling to an appropriate temperature can be efficiently achieved.

[0023] By driving the fan unit 34 to rotate the rotary vanes 33, the cold air in the cooling chamber 20 is sucked into the fan unit 34 through the cold air intake 37 of the fan casing 35, and is blown out from the outer periphery of the fan unit 34 into the inside of the fan casing 35. The cold air blown out into the inside of the fan casing 35 is guided along the fan casing 35, and sent to the duct 21 from the second opening 36 via the cold air passage 64a.

[0024] An evaporator 22 is installed below the blower fan 32 of the cooling compartment 20. A compressor 23 is disposed in the upper rear portion of the refrigerator compartment 12. The compressor 23, a condenser (not shown), an expansion mechanism, and the evaporator 22 are connected by refrigerant piping to form a refrigeration cycle. The refrigerant is discharged from the compressor 23, cooled to a predetermined temperature, and heat exchanged between the evaporator 22 and the air inside the cooling chamber 20, generating cold air inside the cooling chamber 20.

[0025] A substantially arc-shaped first opening 38 is formed in the first partition plate 30 at a position corresponding to the fan casing 35, along with the fan casing 35. In the present embodiment, three first openings 38 are formed. The three first openings are, from the upstream side of the airflow by the blower fan 32, an upstream first opening 38a, a midstream first opening 38b, and a downstream first opening 38c, respectively. The opening areas of the first upstream opening 38a, the first midstream opening 38b, and the first downstream opening 38c are formed so that the opening width gradually increases from the upstream side to the downstream side of the airflow. Also, the opening areas of the first upstream opening 38a, the first midstream opening 38b, and the first downstream opening 38c are formed so that the opening width gradually increases from the upstream side. This ensures efficient cooling by ensuring the amount of airflow to freezer compartment 13. Note that as long as the amount of airflow can be ensured, at least only upstream first opening 38a may be gradually enlarged.

[0026] A fan mounting portion 39 for mounting the fan unit 34 to the first partition plate 30 is defined between the upstream first opening 38a, the midstream first opening 38b, and the downstream first opening 38c. Each of the fan mounting portions 39 of the first partition plate 30 is formed with a recess 39a. Three fan support portions 34a are formed at approximately equal intervals on the outer periphery of the fan unit 34 to support the fan unit 34. The fan support portions 34a are approximately circular support portions that support the fan unit 34 at three points, and are configured with vibration-isolating rubber. The fan support portion 34a of the fan unit 34 is inserted into the recess 39a and fixed with a screw 66. The fan support portion 34a may be press-fitted into the recess 39a and fixed without using a screw.

[0027] In this case, by attaching the blower fan 32 to the inclined surface 31 of the first partition plate 30, the rotation axis of the blower fan 32 is arranged at an incline. This causes the blower fan 32 to blow cool air upward from the first opening 38, making it easier for the cool air to convect.

[0028] Further, a molded heat insulating material 50 made of, for example, polystyrene foam or the like is provided on the second partition plate 40 in close contact therewith. Similar to the first partition plate 30, three discharge ports 42, 51 are formed in the second partition plate 40 and the molded insulation material 50 at positions corresponding to the first opening 38 of the first partition plate 30. The discharge ports 42, 51 are arranged so that at least a portion of each of them overlaps with the upstream first opening 38a, the midstream first opening 38b, and the downstream first opening 38c in a front view. Further, below the discharge ports 42, 51 of the second partition plate 40 and the molded thermal insulating material 50, a plurality of (three in this embodiment) second discharge ports 43, 52 are formed. The second outlets 43, 52 communicate the freezing chamber 13 with the cold air passage 41.

[0029] A disk-shaped rotary disk 44 that closes each of the discharge ports 42 is attached rotatably to the second partition plate 40 at the discharge port 42 portion. The rotating disc 44 is formed with a disc opening 45 that corresponds to the discharge outlet 42 and has substantially the same shape as the discharge outlet 42. An operation knob 46 is provided in the center of the rotating disc 44, and the rotating disc 44 can be rotated by operating the operation knob 46.

[0030] That is, if the rotating disk 44 is positioned so that the discharge port 42 and the disk opening 45 are aligned, the cold air from the cooling chamber 20 flows directly into the freezing chamber 13 via the first opening 38. Also, by rotating the rotating disk 44 and shifting the positions of the discharge port 42 and the disk opening 45 to reduce the opening area, it is possible to reduce the amount of cold air flowing in from the first opening 38.

[0031] [1-2. Operation, etc.] Next, the operation of refrigerator 10 in the first embodiment will be described. In this embodiment, the compressor 23 is driven to circulate the refrigerant through the refrigerant circuit, and the evaporator 22 exchanges heat with the air inside the cooling chamber 20, thereby generating cool air. Then, by driving the blower fan 32, the cool air inside the cooling chamber 20 is taken in through the cool air intake port 37 and blown out to the fan casing 35. A portion of the cold air blown out to the fan casing 35 is sent from the second opening 36 towards the duct 21, and the air volume is controlled by the refrigerator compartment damper 65b of the twin damper 65 to cool the refrigerator compartment 12, and the air volume is controlled by the low temperature compartment damper 65a to cool the low temperature compartment 60.

[0032] In this case, a portion of the airflow blown out from the fan casing 35 flows toward the low-temperature room damper 65a due to centrifugal force, and the amount of air flowing to the low-temperature room damper 65a is greater than that to the refrigerator room damper 65b, thereby improving the cooling efficiency in the low-temperature room 60. Furthermore, since the refrigerator compartment damper 65b is positioned in the tangential direction at the point from the outer downstream side to the connection part 70, it is possible to guide in the tangential direction a portion of the airflow that flows from the downstream side of the fan casing 35 toward the outside of the fan casing 35 due to centrifugal force, and it is possible to ensure the amount of airflow in the direction of the refrigerator compartment damper 65b.

[0033] Further, a part of the cool air blown out to the fan casing is sent to the cool air passage 41 through the first opening . The cold air sent to the cold air passage 41 is sent directly into the freezing chamber 13 from the discharge ports 42, 51 of the second partition plate 40 and the molded insulation material 50. In addition, a part of the cold air sent to the cold air passage 41 is sent to the freezing chamber 13 from the second discharge ports 43, 52, and the cold air sent from the discharge ports 42, 51 and the second discharge ports 43, 52 cools the freezing chamber 13.

[0034] In this case, since the first opening 38 and the discharge ports 42, 51 are arranged so as to at least partially overlap in a front view, the cool air blown out from the first opening 38 can be sent from the discharge ports 42, 51 to the freezer compartment 13 without loss. In addition, since the rotation axis of the blower fan 32 is arranged at an angle, the blower fan 32 can facilitate convection of the cool air blown out from the first opening 38. Therefore, cool air can be sent from the outlets 42, 51 to the inside of the freezer compartment 13 extremely efficiently, and as a result, the temperature in the vicinity of the outlets 42, 51 inside the freezer compartment 13 becomes the lowest.

[0035] [1-3. Effects, etc.] As described above, in this embodiment, the refrigerator comprises at least a freezer compartment 13 (first storage compartment) and a refrigerator compartment 12 (second storage compartment), and is provided with a blower fan 32 arranged on the rear side of the freezer compartment 13, a fan casing 35 arranged on the outer periphery of the blower fan 32 and formed in a roughly spiral shape to guide the air blown out from the blower fan 32, and a first opening 38 connecting the inside of the fan casing 35 to the freezer compartment 13. This allows the cool air sent from the blower fan 32 to the fan casing 35 to be sent directly to the freezing chamber 13 via the first opening 38. Therefore, the duct 21 for cooling the freezing chamber 13 is not necessary, the cooling chamber 20 can be made smaller, and the distance between the blower fan 32 and the freezing chamber 13 can be shortened, allowing the freezing chamber 13 to be cooled efficiently.

[0036] In addition, in this embodiment, a duct 21 is provided that connects the refrigerator compartment 12 (second storage compartment) and the blower fan 32, and the fan casing 35 has a second opening 36 that opens at the end of the fan casing 35 and communicates with the duct 21. This allows the cool air sent from the blower fan 32 to the fan casing 35 to be sent to the refrigerating compartment 12 via the second opening 36 and the duct 21, thereby cooling the refrigerating compartment 12.

[0037] In the present embodiment, the rear surface of the freezer compartment 13 (first storage compartment) is provided with the discharge ports 42, 51, and the first opening 38 and the discharge port 42 at least partially overlap in a front view. This allows the cool air blown out from the first opening 38 by the blower fan 32 to be efficiently sent to the outlet 42, thereby improving the efficiency of blowing air into the freezer compartment 13.

[0038] In the present embodiment, the first opening 38 is formed in an arc shape along the fan casing 35. Thus, by forming the first opening 38 in an arc shape, it becomes possible to easily blow cool air from within the fan casing through the first opening 38.

[0039] In addition, in this embodiment, a cooling chamber 20 in which an evaporator 22 is installed is formed on the rear side of the freezer chamber 13 (first storage chamber), and the cooling chamber 20 is provided with a first partition plate 30 on the first storage chamber side, a first opening 38 is formed in the first partition plate 30, and the blower fan 32 and fan casing 35 are fixed to the first partition plate 30. As a result, the first partition plate 30 constitutes the cooling chamber 20, and also makes it possible to attach the blower fan 32 and the fan casing 35 and to form the first opening 38.

[0040] In addition, in this embodiment, a second partition plate 40 having a predetermined distance from the first partition plate 30 is provided on the rear side of the freezer compartment 13 (first storage compartment), and an outlet 42 is formed in the second partition plate 40. This allows the second partition plate 40 to form the discharge port 42 .

[0041] In addition, in this embodiment, a cold air passage 41 communicating with the first opening 38 is formed between the first partition plate 30 and the second partition plate 40, and a second discharge port 43 communicating between the first storage chamber and the cold air passage 41 is formed in the second partition plate 40. This allows the cool air sent from the first opening 38 to be sent to the freezer compartment 13 from the outlet 42 and the second outlet 43, making it possible to cool the freezer compartment 13 more efficiently.

[0042] In this embodiment, a molded heat insulating material 50 is disposed between the first partition plate 30 and the second partition plate 40. This allows the molded insulation material 50 to insulate the freezer compartment 13.

[0043] In the present embodiment, the blower fan 32 is disposed with its rotation axis inclined, and the blower fan 32 blows air upward from the first opening . This allows the blower fan 32 to blow cool air upward from the first opening 38, facilitating convection of the cool air.

[0044] In the present embodiment, the upstream first opening 38a, the midstream first opening 38b, and the downstream first opening 38c (first openings) are provided in plurality along the fan casing 35. This allows the cool air sent from the blower fan 32 to the fan casing 35 to be sent efficiently to the freezer compartment 13 via the multiple first openings 38.

[0045] In addition, in this embodiment, the opening areas of the upstream first opening 38a, the midstream first opening 38b and the downstream first opening 38c (first openings) are each formed so that the opening width gradually increases from the upstream side to the downstream side of the airflow generated by the blower fan 32. This allows the cold air sent from the blower fan 32 to the fan casing 35 to be sent to the freezer chamber 13 via the upstream first opening 38a, the midstream first opening 38b and the downstream first opening 38c so that the air volume gradually increases from the upstream side to the downstream side.

[0046] In this embodiment, the refrigerator compartment ( Second Storage Room ) and a cold storage compartment damper ( Second storage chamber damper ) and a low temperature chamber damper (third storage chamber damper), the low temperature chamber damper being disposed in the outer circumferential direction of the fan casing, and the refrigeration chamber damper being disposed in the tangential direction on the downstream side of the airflow of the fan casing. As a result, a portion of the airflow blown out from the fan casing 35 flows more toward the low temperature room damper 65a than toward the refrigerator room damper 65b, improving the cooling efficiency in the low temperature room 60. Also, a portion of the airflow that flows from the downstream side of the fan casing 35 toward the outside of the fan casing 35 due to centrifugal force can be guided in the tangential direction, ensuring the amount of airflow in the direction toward the refrigerator room damper 65b.

[0047] Furthermore, in this embodiment, a plurality of fan support portions 34a that support the blower fan 32 are formed on the outer periphery of the blower fan 32, and recesses 39a are formed at positions corresponding to the fan support portions 34a of the first partition plate 30, and the blower fan 32 is fixed by inserting the fan support portions 34a into the recesses 39a. This allows the blower fan 32 to be easily fixed in place in the first partition plate 30 after being positioned thereon.

[0048] (Other embodiments)

[0049] Note that the first embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. FIG. 11 is a front view of a fan casing showing another embodiment of the present disclosure. As shown in FIG. 11, in this embodiment, an example in which a single damper 71 is used is shown. When using the single damper 71 in this manner, the tangent on the downstream side of the airflow of the fan casing 35 is formed in a vertical direction. Then, the second opening 36 is disposed in the tangent direction, and the single damper 71 is disposed in the second opening 36. This allows the airflow sent from the blower fan 32 to be blown out efficiently in the direction of the second opening 36 and the single damper 71.

[0050] In addition, in the first embodiment, a case has been described in which the first storage compartment is the freezer compartment 13 and the second storage compartment is the refrigerator compartment 12. The present invention is not limited to this, and for example, the first storage compartment may be the refrigerator compartment 12 and the second storage compartment may be the freezer compartment 13. In this case, the blower fan 32 directly cools the refrigerator compartment 12 via the first opening 38, the discharge ports 42, 51, and the second discharge ports 43, 52, and cools the freezer compartment 13 via the duct 21.

[0051] In the first embodiment, the rotation axis of the blower fan 32 is arranged to be inclined, but this is not limiting. For example, the rotation axis may be arranged to be substantially horizontal. [Industrial Applicability]

[0052] INDUSTRIAL APPLICABILITY As described above, the refrigerator according to the present invention can be suitably used as a refrigerator that can minimize the duct for sending cool air and realizes high efficiency and compactness. [Explanation of symbols]

[0053] 10. Refrigerator 11. Cabinet 12 Refrigerator 13 Freezer 13 Direct freezing room 14 Doors 15 drawers 20 Cooling room 21 Duct 22 Evaporator 23 Compressor 30 First partition plate 31 Slope 32 Blower fan 33 Rotor blade 34 Fan unit 34a Fan support 35 Fan casing 36 Second Opening 37 Cold air intake 38 First Opening 38a First upstream opening 38b Midstream side first opening 38c First downstream opening 39 Fan mounting part 39a Recess 40 Second partition plate 41 Cold Aisle 42 Discharge port 43 2nd discharge port 44 Rotating Disc 45 Disc Opening 46 Operation knob 50 Molded insulation material 51 outlet, 52 2nd outlet 61 Side-opening door 62 Drawer Door 63 Drawer Case 64 Insulated Walls 64a Cold Aisle 65 Twin Damper 65a Low temperature room damper 65b Refrigerator damper 66 bis 70 Connection 71 Single Damper

Claims

1. The storage device includes at least a first storage chamber and a second storage chamber, A blower fan disposed on a rear side of the first storage chamber; a fan casing arranged around the outer periphery of the blower fan and formed in a generally spiral shape to guide the air blown out from the blower fan; a first opening that communicates an interior of the fan casing with the first storage chamber, A cooling chamber in which an evaporator is installed is formed on the rear side of the first storage chamber, The cooling chamber includes a first partition plate on the first storage chamber side, The first opening is formed in the first partition plate, The blower fan and the fan casing are fixed to the first partition plate.

2. a duct connecting the second storage chamber and the blower fan, 2. The refrigerator according to claim 1, wherein the fan casing has a second opening that opens at an end of the fan casing and communicates with the duct.

3. 3. The refrigerator according to claim 1, further comprising a discharge port on a rear surface of the first storage chamber, and the first opening and the discharge port at least partially overlap each other in a front view.

4. The refrigerator according to any one of claims 1 to 3, wherein the first opening is formed in an arc shape along the fan casing.

5. a second partition plate provided on a rear side of the first storage chamber and spaced a predetermined distance from the first partition plate; The refrigerator according to claim 3, wherein the outlet is formed in the second partition plate.

6. a cold air passage communicating with the first opening is formed between the first partition plate and the second partition plate; 6. The refrigerator according to claim 5, wherein the second partition plate is formed with a second outlet port communicating between the first storage chamber and the cold air passage.

7. 7. The refrigerator according to claim 5, wherein a molded heat insulating material is disposed between the first partition plate and the second partition plate.

8. The blower fan has a rotation axis that is inclined, The refrigerator according to any one of claims 1 to 7, wherein the blower fan blows air upward from the first opening.

9. The refrigerator according to any one of claims 1 to 8, wherein a plurality of the first openings are provided along the fan casing.

10. The refrigerator according to claim 9, wherein the opening areas of the first openings are formed so that the opening widths become gradually larger from the upstream side to the downstream side of the airflow caused by the blower fan.

11. a third storage chamber having a lower temperature than the second storage chamber; 3. The refrigerator according to claim 2, further comprising a second storage chamber damper and a third storage chamber damper above the second opening for adjusting the amount of cool air flowing into the second storage chamber and the third storage chamber.

12. A plurality of fan support portions are formed on the outer periphery of the blower fan to support the blower fan, A recess is formed in the first partition plate at a position corresponding to the fan support portion, The refrigerator according to any one of claims 1 to 11, wherein the blower fan is fixed by inserting the fan support part into the recess.

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