WO2013132785A1 - Refrigerator - Google Patents

Abstract

As a result of having a cold air guiding section configured as a single piece by a front partitioning member in the air distribution path, the air paths from the laminar cold air flow section (120a) to the various leading edge air paths and to the various discharge ports are configured from a single smooth surface. Cold air discharged from a fan (113) is able to flow to the various discharge ports (127, 128, 129) along the surface of the front partition member without colliding with the level differences or gaps seen in sections where components interdigitate and ventilation loss can be kept to a minimum.

Description

refrigerator

The present invention relates to a refrigerator that cools a storage room by forcibly circulating cool air generated by a cooler.

As demand for energy saving becomes stricter, in a refrigerator that cools a storage room by forcibly circulating cool air generated by a cooler, not only the refrigeration efficiency of the cooler but also the blowing efficiency of the blower is emphasized. Therefore, an air blowing technique that efficiently transports the cold air discharged from the blower is important. Conventionally, a duct composed of a plurality of parts is formed on the discharge side of the blower to distribute the cold air to each storage chamber. (For example, refer to Patent Document 1 and Patent Document 2).

Hereinafter, a conventional refrigerator will be described with reference to the drawings.

FIG. 14 is a longitudinal sectional view around the blower installed in the conventional refrigerator cooling chamber. In the figure, the partition member 1 divides the cooler chamber 2 and the freezing chamber 3, and includes a heat insulating material 1b, a front partition plate 1a, a damper device 4, a blower 5, and a rear partition plate 6. These are preliminarily assembled with each other and have a predetermined outer dimension. Inside the partition member 1, a cold room air passage 7 is constituted by a heat insulating material 1 b, and the cold room air passage 7 has a cold air diverting portion (not shown) in the middle thereof for a vegetable room. It communicates with an air passage (not shown).

About the refrigerator comprised as mentioned above, the operation | movement is demonstrated below.

A part of the cold air generated in the cooler chamber 2 is sent by the blower 5 into the freezer compartment 3 from the freezer cooling port 8 a through the freezer air passage 8 provided in the partition member 1. It is done. On the other hand, the remaining cold air passes through the damper device 4 and is sent to the air passage 7 for the refrigerating room. A part of the cold air is further diverted in the cold air diverting section, and the vegetable room passes through the air passage for cooling the vegetable room (not shown) The inside is cooled to a predetermined temperature (not shown).

As described above, conventionally, by forming the air duct that communicates with the refrigerator compartment and the vegetable compartment by the heat insulating material 1b in the partition member 1, the cold air is distributed to each storage compartment and each room is cooled to an appropriate temperature. We were able to provide a refrigerator.

However, in the structure of the conventional refrigerator, in addition to the front partition plate 1a and the rear partition plate 6 constituting the outer shell of the partition member 1, the refrigerator compartment air passage 7, the vegetable compartment air passage, and the heat insulation constituting the cold air distribution section. Since another component such as the material 1b is required, the chance that the cold air discharged from the blower 5 contacts the fitting portion of the component increases. Since the component fitting part always has a discontinuous surface such as a step or a gap, there has been a problem that the smooth flow of cold air is hindered, the blowing efficiency is lowered, and the power consumption is increased.

Furthermore, the increase in the number of parts not only requires a lot of material costs and assembly man-hours, but also increases the volume of the partition member 1, so that the internal volume is reduced, which may impair user convenience.

Next, another conventional refrigerator will be described.

FIG. 15 is a cross-sectional view of another conventional refrigerator. In the figure, the refrigerator body 30 includes a refrigerator compartment 36, a freezing temperature chamber 31, and a vegetable compartment 37 in order from the top. The freezing temperature chamber 31 is disposed below the quick freezing chamber 32 provided with the quick freezing container 41, the ice making chamber 33 juxtaposed beside the quick freezing chamber 32, and the quick freezing chamber 32 and the ice making chamber 33. And a freezer compartment 34. The freezer compartment 34 has a cooler compartment 62 having a cooler 61 formed on the back thereof by a partition member 50, and the partition member 50 is provided with a cool air passage 50 a. In the freezer compartment 34, an upper container 42, a middle container 43, and a lower container 44 are provided, and the cool air discharge air passages 52, 53, and 54 configured integrally with the partition member 50 or separately are provided with cool air. Cold air is introduced into the upper container 42, the middle container 43, and the lower container 44 in communication with the passage 50a. The positions of the discharge ports 52 a, 53 a, 54 a of the cold air discharge air passages 52, 53, 54 are the container flange rear walls 42 c, 43 c formed behind the rear walls of the upper container 42, the middle container 43, and the lower container 44. 44c, the front (inside of the cabinet) is formed.

The blower 63 is provided in the cooler chamber 62 and forcibly circulates the cold air generated in the cooler chamber 62 to the freezing temperature chamber 31, the refrigerating chamber 36, the vegetable chamber 37, and the like.

About the refrigerator comprised as mentioned above, the operation | movement is demonstrated below.

The cool air generated by the cooler chamber 62 is discharged into the cool air passage 50 a of the partition member 50 by the operation of the blower 63. The cool air discharged into the cool air passage 50a is divided into the freezing temperature chamber cooling air and the refrigerating temperature chamber cooling air in the partition member 50. The cold air for cooling the freezing temperature chamber is discharged into the upper container 42 and the middle container 43, 44 from the respective discharge ports 52a, 53a, 54a of the cold air discharge air passages 52, 53, 54 provided in the partition member 50, The inside of the container is cooled to a predetermined temperature. At this time, the positions of the discharge ports 52a, 53a, 54a are more forward than the container flange rear walls 42c, 43c, 44c formed at the rear of the rear walls of the upper container 42, the middle container 43, and the lower container 44 (inside the warehouse). Therefore, it is possible to prevent the cool air discharged from the discharge ports 52a, 53a, 54a from flowing around to the back side of the upper container 42, the middle container 43, and the lower container 44, and to effectively The inside can be cooled.

As described above, in the conventional refrigerator, the positions of the discharge ports 52a, 53a, 54a are configured in front of the container flange portion rear walls 42c, 43c, 44c, so that the upper container 42, the middle container 43, the lower container of the discharged cold air The refrigerator which can prevent the leakage to the back side of the container 44 and can cool the inside of a container effectively can be provided.

However, in the conventional refrigerator configuration, when the cool air generated by the cooler chamber 62 is discharged into the cool air passage 50a of the partition member 50 by the operation of the blower 63, the partition is made to a temperature lower than the room temperature of the freezing temperature chamber 31. By cooling the member 50, frost and freezing can be formed on the inner surface of the partition member 50. When this defrosts the cooler 61, there is a problem that it melts with the warm air and accumulates inside the upper vessel 42, the middle vessel 43, and the lower vessel 44 through the cold air discharge air passages 52, 53, 54.

JP 2007-71496 A JP 2009-139088 A

The refrigerator of the present invention includes a plurality of storage rooms, a cooler that generates cool air for cooling the storage room, a blower that forcibly blows the cool air generated by the cooler to the storage room, and the cool air discharged from the blower A distribution air passage that distributes the air to the storage chambers, a front partition member that is located between the distribution air passage and the storage chamber, and a rear partition member that is located between the distribution air passage and the cooler. And it has the cold air | gas guide part comprised by at least any one of a front partition member and a rear partition member in a distribution air path, It is characterized by the above-mentioned.

As a result, the front partition member and the rear partition member constituting the outer shell of the distribution air passage also serve as a guide for determining the flow of the cold air, so that the number of parts constituting the air passage can be minimized, A very smooth distribution air passage can be constructed. Therefore, power consumption can be reduced by improving the air blowing efficiency. Moreover, since it can comprise only a front partition member and a rear partition member, material cost and a process man-hour do not increase. Furthermore, the volume of the entire partition member can be reduced without reducing the air passage cross-sectional area that lowers the air blowing efficiency, and the storage space can be increased, thereby improving the user-friendliness. .

The refrigerator of the present invention includes a freezer, a cooler that generates cool air for cooling the freezer, a blower that forcibly blows cool air generated by the cooler to the freezer, a freezer and a cooler. A partition member that partitions the cooling chamber, a cool air discharge port that is provided in the partition member and discharges cool air to the freezer chamber, and a mounting member that is provided in the freezer chamber and on which stored items are placed. The outlet is located in front of the rear end of the mounting member. The partition member has a protrusion provided above the cold air discharge port and having a width larger than the width of the cold air discharge port.

Thus, water droplets formed on the surface of the partition member do not fall on the mounting member through the cool air discharge port, and flow down under the partition member while avoiding the cool air discharge port in the left-right direction. Therefore, it becomes possible to provide a high-quality refrigerator without water drops collecting on the place where the stored items are placed. At this time, since the projecting portion is present at a position unrelated to the flow of the cold air, there is no air path resistance and there is no fear of impairing the air blowing efficiency.

FIG. 1 is a front view of the refrigerator in the first embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the refrigerator in the first embodiment of the present invention. FIG. 3 is an enlarged front view of a main part of the refrigerator main body according to the first embodiment of the present invention. FIG. 4 is an enlarged vertical cross-sectional view of a main part in the first embodiment of the present invention. FIG. 5 is an enlarged vertical sectional view of a main part in the first embodiment of the present invention. FIG. 6 is a front view of the partition member according to the second embodiment of the present invention. FIG. 7 is a front view of the partition member according to the third embodiment of the present invention. FIG. 8 is a front view of the refrigerator in the fourth embodiment of the present invention. FIG. 9 is a longitudinal sectional view of a refrigerator in the fourth embodiment of the present invention. FIG. 10 is an enlarged front view of the main part of the refrigerator main body according to the fourth embodiment of the present invention. FIG. 11 is an enlarged vertical cross-sectional view of a main part in the fourth embodiment of the present invention. FIG. 12 is an enlarged vertical sectional view of the main part in the fourth embodiment of the present invention. FIG. 13 is an enlarged front view of the main part of the refrigerator body according to the fifth embodiment of the present invention. FIG. 14 is an enlarged vertical cross-sectional view of a main part of a conventional refrigerator. FIG. 15 is a longitudinal sectional view of a conventional refrigerator.

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

(First embodiment)
1 is a front view of a refrigerator according to the first embodiment of the present invention, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and FIG. 3 is an enlarged front view of the main part of the refrigerator main body according to the first embodiment of the present invention. 4 is a sectional view taken along line 4-4 in FIG. 3, and FIG. 5 is a sectional view taken along line 5-5 in FIG.

In FIG. 1 to FIG. 5, a heat insulating box body 101 which is a refrigerator main body of a refrigerator 100 includes an outer box 102 using a heavy steel plate, an inner box 103 formed of a resin such as ABS, an outer box 102 and an inner box 103. And a foam heat insulating material such as hard foam urethane that is foam-filled in the space between the two, and is insulated from the surroundings and partitioned into a plurality of storage chambers. A refrigeration room 104 as a first storage room is provided at the top, and a second freezing room 105 as a fourth storage room and an ice making room 106 as a fifth storage room are provided side by side under the refrigeration room 104. ing. A first freezer compartment 107 as a second storage room is arranged below the second freezing room 105 and the ice making room 106, and a vegetable room 108 as a third storage room is arranged at the bottom. Yes.

The refrigerating room 104 includes a refrigerating room right door 104a and a refrigerating room left door 104b, which are rotary doors, and a refrigerating room shelf 104c and a refrigerating room case 104d are appropriately disposed therein, so that the storage space can be easily arranged. is doing. On the other hand, the other storage room has a drawer-type door, and a second freezer compartment case 105b is placed on the frame attached to the second freezer compartment door 105a, and is attached to the frame attached to the ice making compartment door 106a. An ice-making chamber case (not shown) is placed. Further, an upper freezer compartment case 107b and a lower freezer compartment case 107c are placed on a frame attached to the first freezer compartment door 107a. An upper vegetable compartment case 108b and a lower vegetable compartment case 108c are placed on the frame attached to the vegetable compartment door 108a.

The refrigerated room 104 is set in a refrigerated temperature zone, which is a temperature at which it does not freeze for refrigerated storage, and is usually set to 1 to 5 ° C. The vegetable room 108 has a refrigeration temperature range equivalent to the refrigeration room 104 or a slightly higher temperature setting vegetable temperature range of 2 ° C. to 7 ° C. The first freezer compartment 107 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for improving the frozen storage state, for example, −30 ° C. It may be set at a low temperature of -25 ° C.

The second freezer compartment 105 has the same freezing temperature zone as the first freezer compartment 107 or a slightly higher temperature setting of −20 ° C. to −12 ° C. The ice making chamber 106 makes ice with an automatic ice maker (not shown) provided at the upper part of the room with water sent from a water storage tank (not shown) in the refrigerator compartment 104, and an ice making case (not shown). Store in.

The top surface portion of the heat insulation box 101 has a stepped recess shape toward the back of the refrigerator, and a machine room 101a is formed in the stepped recess portion. The machine room 101a accommodates high-pressure components of the refrigeration cycle such as the compressor 109 and a dryer (not shown) for removing moisture. That is, the machine room 101 a in which the compressor 109 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 104.

Thus, by providing the machine room 101a in the rear region of the uppermost storage room of the heat insulation box 101 that has become a dead space that is difficult to reach, the compressor 109 is disposed in the conventional refrigerator. The space in the machine room at the bottom of the easy-to-use heat insulation box 101 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

The refrigeration cycle is formed of a series of refrigerant flow paths sequentially including a compressor 109, a condenser, a capillary serving as a decompressor, and a cooler 112. As a refrigerant, for example, isobutane as a hydrocarbon refrigerant is used. It is enclosed.

Compressor 109 is a reciprocating compressor that compresses refrigerant by reciprocating a piston in a cylinder. In the case of a refrigeration cycle using a three-way valve or a switching valve for the heat insulation box 101, those functional parts may be disposed in the machine room 101a.

In the present embodiment, the decompressor constituting the refrigeration cycle is a capillary, but an electronic expansion valve that can freely control the flow rate of the refrigerant driven by the pulse motor may be used.

In the present embodiment, the matter relating to the main part of the invention described below is a type in which a compressor room is provided by providing a machine room in the rear region of the lowermost storage room of the heat insulating box 101, which has been generally used conventionally. It may be applied to other refrigerators.

A cooling chamber 110 for generating cold air is provided on the back surface of the first freezing chamber 107, and the storage chamber consisting of the second freezing chamber 105, the ice making chamber 106, and the first freezing chamber 107 is separated from the cooling chamber 110. Therefore, a partition member 111 is configured. A cooler 112 is disposed in the cooling chamber 110 and exchanges heat with air warmed by exchanging heat with the storage chamber to generate cold air. The partition member 111 includes a front partition member 120 that forms an outer shell on the storage chamber side and a rear partition member 121 that forms an outer shell on the cooling chamber side, and the rear partition member 121 includes a blower 113. A space between the front partition member 120 and the rear partition member 121 is a distribution air passage 122 that divides cold air toward the storage chambers.

The blower 113 is an axial fan that rotates clockwise as viewed from the discharge surface. Hereinafter, when the position in the left-right direction of the refrigerator is designated, the rotation direction of the blower 113 is used as a reference. When using a fan with a counterclockwise rotation direction, the same effect can be obtained by reversing the left and right sides.

The discharge surface of the blower 113 is attached to the front surface of the refrigerator 100 at an angle, and the cold air is arranged to blow up obliquely upward. A portion of the front partition member 120 that faces the blower 113 constitutes a cool air rectification unit 120a that protrudes toward the blower 113 side. The cool air rectification unit 120 a has a substantially truncated cone shape with the rotation axis of the blower 113 as the central axis. The front end of the cool air rectifying unit 120 a is configured by a surface parallel to the discharge surface of the blower 113, and the diameter thereof is substantially the same as the boss diameter of the blower 113.

The distribution air passage 122 branches the downstream portion into four air passages by the upper left cool air guide portion 123, the upper right cool air guide portion 124, the lower left cool air guide portion 125, and the lower right cool air guide portion 126. A cold room air passage 122a is formed between the upper left cold air guide portion 123 and the upper right cold air guide portion 124, and a second freezer compartment air passage 122b is formed between the upper right cold air guide portion 124 and the lower right cold air guide portion 126. Is formed. Further, a first freezer compartment air passage 122c is formed between the lower right cold air guide portion 126 and the lower left cold air guide portion 125, and an ice making room air flow is formed between the lower left cold air guide portion 125 and the upper left cold air guide portion 123. A path 122d is formed.

With the partition member 111 assembled to the refrigerator 100, the refrigerating room air passage 122a communicates with the refrigerating room connection air passage 118a provided on the partition wall 118 that insulates the refrigerating room 104 and other storage rooms. The second freezer compartment air passage 122b and the ice compartment air passage 122d communicate with the second freezer compartment outlet 127 and the icemaker outlet 128 formed between the partition wall 118 and the partition member 111, respectively. To do. The refrigerator compartment connection air passage 118 a has a damper 119 to adjust the amount of air flowing to the refrigerator compartment 104. Further, the refrigerator compartment connection air passage 118a includes a vegetable compartment connection air passage 118b that guides the cold air to the vegetable compartment 108 downstream of the damper 119, and a part of the cold air that has passed through the damper passes from the vegetable compartment outlet 129 to the vegetable compartment 108. Flows in. Further, the first freezer compartment discharge ports 120b provided in the front partition member 120 are scattered from the middle to the front end of the first freezer compartment air passage 122c, and cool air is supplied to the first freezer compartment 107. Introduce.

Here, the damper 119 may be provided not only in the refrigerator compartment connection air passage 118 a but also in the distribution air passage 122 or a dedicated air passage provided in the refrigerator compartment 104 or a discharge port. Further, as necessary, the second freezer compartment air passage 122b, the first freezer compartment air passage 122c, the ice making air passage 122d, the second freezer compartment outlet 127, the ice making outlet 128, By providing dampers in the first freezer compartment outlet 120b and the vegetable compartment outlet 129, the temperature of each storage room can be adjusted with higher accuracy.

In the present embodiment, the second freezer compartment air passage 122b, the first freezer compartment air passage 122c, and the ice compartment air passage 122d are respectively the second freezer compartment 105, the first freezer compartment 107, Although it is a dedicated air passage for the ice making chamber 106, it is similar to the air passage 122a for the refrigerator compartment according to conditions such as the storage compartment layout of the refrigerator 100, the air passage configuration outside the distribution air passage 122, and the temperature zone of each storage compartment. A dual-purpose structure communicating with a plurality of storage rooms may be used. Conversely, the refrigeration chamber air passage 122 a may be divided in the distribution air passage 122 into an air passage communicating with the refrigeration chamber 104 and an air passage communicating with the vegetable compartment 108.

The first freezer compartment discharge port 120b is below the center of the cold air rectifying unit 120a, above the upper end of the upper surface of the upper freezer compartment case 107b, below the lower surface of the upper freezer compartment case 107b, and It is located in two places above the upper end of the lower surface of the lower freezer case 107c. Then, cold air is blown into the upper freezer compartment case 107b and the lower freezer compartment case 107c from the first freezer compartment outlet 120b. Note that the shape of the first freezer compartment discharge port 120b is appropriately designed according to the layout of the first freezer compartment 107 and the assumed storage, but by providing one or more horizontal holes, the first It becomes easy to deliver cold air to the entire freezer compartment 107 evenly.

Also, in the lower space of the cooler 112, a radiant heating means 114 made of a glass tube is provided for defrosting the frost and ice adhering to the cooler 112 and its periphery during cooling. Furthermore, a drain pan 115 for receiving defrost water generated at the time of defrosting of the cooler 112 is provided at a lower portion thereof, and a drain tube 116 penetrating from the deepest portion of the drain pan 115 to the outside of the chamber is formed. An evaporating dish 117 is provided outside the refrigerator. Instead of the radiant heating means 114, another shape heating means such as a pipe heater attached to the cooler 112 may be used, or the radiant heating means 114 and another shape heating means may be used in combination.

The upper left cool air guide portion 123 includes a front guide portion 123a formed integrally with the front partition member 120 and a rear guide portion 123b formed integrally with the rear partition member 121, and the upper end side of the partition member 111 is widest and goes downward. It has a substantially triangular shape that becomes narrower.

The front guide portion 123a includes a guide convex portion 123c in which a part of the front partition member 120 protrudes toward the distribution air passage, and a guide rib 123d having an extended shape on the side surface of the guide convex portion 123c on the outer periphery of the most protruding surface of the guide convex portion 123c. With.

Further, the front guide portion 123a has an inner surface 123e that is a first surface located on the side facing the fan with the lower tip as a boundary, and an outer surface 123f that is a second surface facing the air passage 122d for ice making chamber. It has two sides. The inner side surface 123e has a reference surface made up of a part of a substantially cylinder centered on the central axis of the truncated cone of the cold air rectifying unit 120a, and forms a side wall of the cold room air passage 122a that guides the cold air to the cold room 104. The outer side surface 123f is formed in a substantially flat surface extending in a substantially vertical direction and formed substantially perpendicular to the reference surface of the front partition member 120, and forms a side wall of an ice making chamber air passage 122d that guides cold air to the ice making chamber 106.

The base of the guide convex portion 123c has a gentle R (radius 1 mm or more, preferably radius 3 mm or more), and is smoothly connected to the skirt of the cool air rectification unit 120a. The lower front end portion of the front guide portion 123a is a side where the inner side surface 123e and the outer side surface 123f intersect, and is located above a horizontal plane passing through the center point of the discharge surface of the blower 113.

The rear guide portion 123b is configured by a rib provided at a position facing the front guide portion 123a of the rear partition member 121, and has a shape that fits within the guide rib 123d of the front guide portion 123a. The gap between the guide convex portion 123c and the rear guide portion 123b is about 1 to 3 mm.

Note that the smaller the gap between the guide convex portion 123c and the rear guide portion 123b, the more difficult it is for cold air to enter, and the smaller the airway resistance, and the larger the gap, the more the condensation formed in the upper left cold air guide portion 123 is prevented. Therefore, it is desirable to select an optimum value according to the position of the distribution air passage 122 in the refrigerator 100, the temperature zone of each storage room, and the like.

Further, the lower right cool air guide portion 126 is configured by a hollow rib provided in the front partition member 120, and an upper surface 126a which is a first surface forming the lower wall of the second freezer compartment air passage 122b and the first freezer. It has the lower surface 126b which is the 2nd surface which makes the upper right side wall of the room air path 122c. Similarly, the upper right cool air guide portion 124 and the lower left cool air guide portion 125 are also hollow ribs provided in the front partition member 120, and have two surfaces, a first surface and a second surface, facing different air paths. Have.

The upper right cool air guide portion 124, the lower left cool air guide portion 125, and the lower right cool air guide portion 126 are formed by convex portions and solid ribs provided on the front partition member 120, and ribs and convex portions provided on the rear partition member 121. You may do it.

In addition, the matter regarding the main part of the invention described below in the present embodiment is applied to a refrigerator of a type having a rotating door in any storage room and having a structure in which a storage case is placed in the inner box 103. It doesn't matter.

The operation and action of the refrigerator 100 of the present embodiment configured as described above will be described below.

First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control device (not shown) according to the set temperature in the refrigerator, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 109 is condensed to some extent by a condenser (not shown). Further, the refrigerant prevents dew condensation on the heat insulating box body 101 via the side and rear surfaces of the heat insulating box body 101 which is the refrigerator main body, and a refrigerant pipe (not shown) disposed in the front opening of the heat insulating box body 101. While condensing into liquid, it reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 109 to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 112.

Here, in the cooling chamber 110, the air in each storage chamber collected by the operation of the blower 113 is heat-exchanged with the liquid refrigerant by the cooler 112, and the refrigerant in the cooler 112 evaporates. At this time, the air returned from the storage chamber becomes cool air for cooling each storage chamber again in the cooling chamber 110. The low-temperature cold air flows from the blower 113 through the distribution air passage 122 and is divided by using the air passage and a damper, and passes through the refrigerating room 104, the second freezing room 105, the ice making room 106, the first freezing room 107, and the vegetable room 108. Cool to each target temperature range.

Since the blower 113 is an axial fan that rotates clockwise as viewed from the front of the refrigerator 100, the discharged cool air flows in a truncated cone shape so as to spread radially while turning clockwise. Therefore, by forming the cool air rectifying unit 120a in accordance with the flow of the discharged cool air, the cool air can be smoothly sent to the distribution air path 122 without generating vortices. Further, on the discharge side of the axial flow fan constituting the blower 113, an air flow returning toward the axial flow fan is generated at the center, but the upper surface diameter of the truncated cone of the cold air rectifying unit 120a is substantially the same as the boss diameter of the axial flow fan. Thus, since this return airflow can be suppressed, the energy given to the cold air from the blower 113 can be utilized for the blown air without waste.

The angle between the conical surface created by the discharge cool air and the rotation axis of the blower 113 differs depending on the flow rate and the number of rotations sent by the blower 113. It can be carried out. For example, the case where the blower 113 having a blade diameter of 90 mm to 110 mm is rotated around 1200 rpm to 3000 rpm to obtain an air volume of 0.5 m ³ / min to 1.0 m ³ / min will be described. According to the experiment under these conditions, the angle between the rotating shaft and the conical surface of the cool air rectifying unit 120a is preferably 50 ° to 85 °. By gradually increasing the distance to the blower 113 as it spreads in the radial direction, the kinetic energy of the discharged cold air can be efficiently recovered as pressure energy, so the discharge pressure is increased without increasing the work of the blower 113 Can do. Since the work of the air blower 113 is increased in an air passage that has many storage chambers, a wide variety of air blowing circuits, and requires many parts that cause air passage resistance such as the damper 119 as in the present embodiment, cold air rectification The part 120a plays a greater role.

Of the cool air that has spread along the cool air rectifying unit 120a, the cool air that flows between the lower left cool air guide portion 125 and the upper left cool air guide portion 123 is formed between the left side wall of the distribution air passage 122 and the outer surface 123f. The air is sent to the ice making chamber 106 through the ice making chamber discharge port 128 through the ice making chamber air passage 122d. The cold air flowing between the upper left cold air guide part 123 and the upper right cold air guide part 124 passes along the inner side surface 123e through the cold room air passage 122a, and is refrigerated from the cold room connection air path 118a and the vegetable room connection air path 118b. Air is sent to the room 104 and the vegetable room 108. Further, the cold air flowing between the upper right cold air guide portion 124 and the lower right cold air guide portion 126 flows from the second freezer compartment discharge port 127 along the upper surface 126a and the right side surface of the distribution air passage 122 into the second freezer compartment. The remaining cool air is sent to the first freezer compartment 107 from the first freezer outlet 120b. In this way, the cool air discharged into the distribution air passage 122 is branched into the air passages to the respective storage chambers in the downstream portion, and a certain amount can be blown from each discharge port to each storage chamber. .

At this time, the first surface and the second surface of each cold air guide part are not parallel, but have a shape that gradually expands according to the flow of the discharged cold air, so the direction of the cold air is gradually adjusted to face each discharge port. Is done. Accordingly, it is possible to eliminate a change in the rapid flow of the cold air, and it is possible to suppress the blowing loss. In addition, since the cold air guide portion exists between the two front air passages, the flow of the cold air on both sides is directed in different directions. From this fact, the cold air guide portion has side walls adapted to the respective flows, so that it is possible to reduce the invalid space of the air passage existing between the two flows, that is, the space for generating the turbulence of the cold air such as a vortex. Therefore, it is possible to improve the blowing efficiency.

Further, since the inner side surface 123e has a cylindrical shape that is coaxial with the conical shape of the cold air rectifying unit 120a, it is possible to reduce the deceleration of the cold air in the rotational direction as much as possible. Furthermore, since the distance from the blower 113 is substantially constant at every point on the inner side surface 123e, the air volume hitting the surface is substantially uniform, and the pressure difference of the cold air depending on the location can be minimized. Can be reduced.

Further, since all the cool air guide portions and the cool air rectifying portions 120a are formed integrally with the front partition member 120, the air passage from the cool air rectifying portion 120a to each tip air passage and each discharge port is a single smooth surface. It becomes possible to comprise. Since the cold air discharged from the blower 113 hits the cold air rectification unit 120a and flows along the cold air rectification unit 120a, it becomes possible to flow to the discharge port without hitting a step or a gap seen in the component fitting part, and blowing loss is reduced. It can be minimized.

The upper left cold air guide part 123 includes not only the front guide part 123a but also the rear guide part 123b. However, since the rear guide portion 123b has a shape that fits inside the front guide portion 123a, the cool air flowing along the front partition member 120 surface flows relatively smoothly without entering the upper left cool air guide portion 123. Can do. Even when a part of the cool air enters the upper left cool air guide portion 123, the front guide portion 123a is constituted by the guide convex portion 123c and the guide rib 123d, and the space in the upper left cool air guide portion 123 is small. It is possible to suppress the disturbance of the air flow and suppress the reduction of the blowing efficiency. Furthermore, even if the depth dimension of the distribution air passage 122 is large by configuring the upper left cold air guide portion 123 by both the front partition member 120 and the rear partition member 121, without increasing the depth dimension of each component, It becomes possible to comprise a cold air | gas guide part. Therefore, an air passage having a large depth dimension and a small blowing loss can be configured at low cost without impairing workability.

At this time, since the cool air discharged from the blower 113 almost directly collides with the upper left cool air guide portion 123, the air in the upper left cool air guide portion 123 is cooled while the blower 113 is in operation, and the air flows into the upper left cool air guide portion 123. There is a risk of freezing. However, since there is a gap of about 2 mm between the guide rib 123d and the rear guide portion 123b at the lower front end portion of the upper left cold air guide portion 123, it is discharged from the gap when the icing in the upper left cold air guide portion 123 is melted. Therefore, it is possible to prevent a situation where freezing grows and the upper left cold air guide portion 123 is deformed.

It should be noted that in order to prevent these condensation from accumulating around the upper left cold air guide portion 123, it is desirable to incline the lower end portions of the guide convex portion 123c, the guide rib 123d, and the rear guide portion 123b so as to promote water drainage.

Next, the action during defrosting will be described. In order to melt frost and ice adhering to the cooler 112 and its periphery during cooling, the refrigerator 100 periodically interrupts cooling and heats the radiant heating means 114 to heat the inside of the cooling chamber 110. At this time, the air in the cooling chamber 110 is also warmed and rises above the cooling chamber 110, and part of the warm air passes through the blades of the blower 113 and enters the distribution air passage 122. The warm air leaking into the distribution air passage 122 rises further upward. At this time, in the present embodiment, since the lower tip portion of the upper left cold air guide portion 123 is installed above the horizontal plane including the center point of the blower 113, the warm air is used not only for the refrigerator compartment air passage 122a but also for the ice making room. It can also go up to the air path 122d. Thereby, the volume in which the warm air in the distribution air path 122 can flow can be increased, and the amount of warm air flowing from the distribution air path 122 further into the storage chamber can be reduced. Therefore, the temperature rise of the stored item stored in the storage room can be suppressed, and user convenience can be improved. Furthermore, it is possible to reduce warm air being cooled in the storage chamber and causing condensation or frost formation in the storage chamber, thereby improving user comfort.

As described above, in the present embodiment, by having the cold air guide portion integrally formed by the front partition member 120 in the distribution air passage 122, the air passage from the cold air rectifying portion 120a to the downstream portion is smooth. It can be configured by a single surface. Since the cold air discharged from the blower hits the cold air rectification unit 120a and flows along the cold air rectification unit 120a, it can flow to the discharge port without hitting a step or a gap seen in the component fitting portion, and the air loss is minimized. To the limit. Furthermore, the cool air guide part can be configured by only the front partition member 120 and the rear partition member 121. For this reason, not only the material cost and the number of assembly steps are not increased, but the volume of the partition member 111 can be reduced while the air passage cross-sectional area that reduces the air blowing efficiency is maintained, and the storage space can be increased. User convenience can be improved. Furthermore, even if the depth dimension of the distribution air passage 122 is large by configuring the upper left cold air guide portion 123 by both the front partition member 120 and the rear partition member 121, without increasing the depth dimension of each component, It becomes possible to comprise a cold air | gas guide part. Therefore, an air passage having a large depth dimension and a small blowing loss can be configured at low cost without impairing workability.

Further, the downstream portion of the distribution air passage 122 is branched into a plurality of air passages, has a plurality of outlets communicating with the plurality of storage chambers, and the cold air guide portion is a first portion provided at a position facing the blower 113. And a second surface adjacent to the air passage that is not adjacent to the first surface. As a result, it is possible to efficiently distribute the necessary amount of cold air discharged from the blower 113 to a plurality of storage chambers, thereby cooling each storage chamber to a predetermined temperature without increasing air blowing loss. It becomes possible to do.

In addition, the first surface and the second surface have portions that are not parallel to each other, so that the number and shape of the air passages toward each storage chamber can be determined regardless of the shape of the partition member 111. For this reason, it becomes possible to abolish the corner part etc. in which the discharge cold air of the air blower 113 is easy to make a vortex, and it can blow air to each store room more efficiently.

The front guide portion 123 a has a guide convex portion 123 c formed on the front partition member 120. This makes it possible to suppress the wasteful flow of cool air by reducing the internal volume of the upper left cool air guide portion 123 while reducing the material cost by making the cool air guide portion hollow, and a smoother air path Can be provided.

The front partition member 120 has a cold air rectification unit 120 a formed of a surface protruding toward the inside of the distribution air passage 122 on the surface facing the blower 113. Thus, the cool air discharged from the blower 113 is rectified radially by the cool air rectification unit 120 a and flows into the distribution air passage 122. Therefore, vortices generated between the blower 113 and the front partition member 120 can be suppressed, and cool air can be blown smoothly.

Furthermore, the cold air rectification part 120a has a substantially truncated cone shape, and the inner side surface 123e is constituted by a part of a substantially cylindrical portion around the same central axis as the cold air rectification part 120a. As a result, it is possible to configure the cold air guide unit in accordance with the speed of the cold air in the rotation direction accompanying the rotation of the blower 113, and the cold air can be guided to the discharge port without stalling.

The refrigerating room air passage 122a communicates with the refrigerating room connection air passage 118a, and the refrigerating room connection air passage 118a includes a damper 119 capable of adjusting an opening area for adjusting the flow rate of the cold air. This allows the damper 119 to adjust the amount of air blown to the refrigerator compartment 104 and the vegetable compartment 108 according to the situation, so that the temperature of the refrigerator compartment 104 and the vegetable compartment 108 is cooled to the freezing temperature zone. Because the temperature can be controlled independently of the storage room, the temperature can be adjusted more precisely.

The lower tip of the upper left cold air guide 123, which is a contact point between the inner surface 123e and the outer surface 123f, is installed above the horizontal plane including the center point of the blower 113. As a result, when the warm air leaking from between the blades of the blower 113 rises during defrosting, it can enter not only the refrigerating chamber air passage 122a but also the ice making chamber air passage 122d. It becomes possible to accumulate more warm air in the path 122, and to reduce the amount of warm air leaking to the storage room.

(Second Embodiment)
FIG. 6 is a front view of the partition member of the refrigerator in the second embodiment of the present invention.

In addition, although description is abbreviate | omitted about the part which can apply the same structure and the same technical idea as 1st Embodiment, as long as there is no malfunction, combining this Embodiment with the structure of 1st Embodiment. It is possible to apply.

6, the partition member 211 partitions the storage chamber composed of the second freezing chamber 105, the ice making chamber 106, and the first freezing chamber 107 from the cooling chamber 110, similarly to the partition member 111 in FIG. 2. The partition member 211 includes a front partition member 120 that forms an outer shell on the storage chamber side and a rear partition member 121 that forms an outer shell on the cooling chamber side, similar to the partition member 111 in FIG. The fan 113 is provided. Further, a space between the front partition member 120 and the rear partition member 121 constituting the partition member 211 is formed with a distribution air passage 222 that branches cold air toward each storage chamber.

The distribution air passage 222 branches the downstream portion into four air passages by the upper left cool air guide portion 223, the upper right cool air guide portion 224, the lower left cool air guide portion 225, and the lower right cool air guide portion 226.

The upper left cold air guide portion 223 is configured by a rib provided on the front partition member 120, and includes an inner side surface 223e (first surface) forming the left side wall of the refrigerator compartment air passage 222a and a right side wall of the ice compartment air passage 222d. The outer surface 223f (second surface) is formed. The upper left cold air guide part 223 is a thin plate rib that extends in a substantially vertical direction and has a substantially flat surface that is formed substantially perpendicular to the reference plane of the front partition member 120, and the upper end side of the partition member 211 is curved toward the cold room air passage 222a side. It has a rounded R shape.

The lower right cool air guide portion 226 is configured by a hollow rib provided in the front partition member 120, and an upper surface 226a (first surface) forming the lower wall of the second freezer compartment air passage 222b and the first freezer compartment. It has a lower surface 226b (second surface) forming the upper right side wall of the air passage 222c. The upper surface 226a and the lower surface 226b extend from the right side of the partition member 211 toward the center, and their roots are substantially parallel but gradually approach and are connected at the tip.

The operation of the refrigerator according to the second embodiment of the present invention configured as described above will be described below.

The cold air discharged to the distribution air passage 222 by the blower 113 is diverted to the refrigerating room air passage 222a and the ice making air passage 222d by the upper left cold air guide section 223. At this time, since the upper left cold air guide part 223 is composed of a thin plate rib, there is no space where a vortex or the like is generated at the branch point, and therefore, the fractionation can be performed smoothly. In addition, since the upper end of the upper left cold air guide part 223 has an R shape, the upper corner part of the cooler air passage 222a is eliminated, and a gentle flow path is formed. As a result, the cool air is smoothly guided to the refrigerating room connection air passage 118a shown in FIG. 3, so that the air blowing efficiency can be improved.

In addition, the thin plate rib of the upper left cold air guide part 223 may be an arc shape having a convex shape on the left side, and by following the flow of the cold air having the rotational component speed discharged from the blower 113 swirling clockwise, Smooth fractionation is possible.

Further, the cool air discharged to the distribution air passage 222 is divided into the second freezer compartment air passage 222b and the first freezer compartment air passage 222c by the lower right cool air guide section 226. At this time, the tip of the lower right cold air guide part 226 is an intersection line of the upper surface 226a and the lower surface 226b, and the width of the lower right cold air guide part 226 gradually widens, so that the cold air is always diverted to one of the air paths, Since the direction is gradually corrected, it is difficult to disturb the flow of cold air, and the air blowing efficiency can be improved.

As described above, in the present embodiment, the inner side surface 223e and the outer side surface 223f are not parallel to each other and have a shape in which the upper portion is widened, so that the air passage in the downstream portion does not have a corner portion and allows cool air to flow smoothly. Therefore, it is possible to improve the ventilation efficiency.

Further, the tip of the lower right cool air guide portion 226 is an intersection line of the upper surface 226a and the lower surface 226b, and the width of the lower right cool air guide portion 226 is gradually widened so that the cool air is always diverted to one of the air paths. Thereafter, since the direction is gradually corrected, it is difficult to disturb the flow of the cold air, and the air blowing efficiency can be improved.

(Third embodiment)
FIG. 7 is an enlarged front view of a main part of the refrigerator according to the third embodiment of the present invention.

In addition, although description is abbreviate | omitted about the part which can apply the same structure and the same technical idea as 1st Embodiment or 2nd Embodiment, as long as there is no malfunction, it is set as the structure of 1st Embodiment. It is possible to apply this embodiment in combination.

7, the partition member 311 partitions the storage chamber composed of the second freezing chamber 105, the ice making chamber 106, and the first freezing chamber 107 from the cooling chamber 110, similarly to the partition member 111 of FIG. 2. The partition member 311 includes a front partition member 120 that forms an outer shell on the storage chamber side and a rear partition member 121 that forms an outer shell on the cooling chamber side, similar to the partition member 111 in FIG. The fan 113 is provided. Further, a space between the front partition member 120 and the rear partition member 121 constituting the partition member 311 is formed with a distribution air passage 322 for branching cool air toward each storage chamber.

The distribution air passage 322 branches the downstream portion into four air passages by the upper left cool air guide portion 323, the upper right cool air guide portion 324, the lower left cool air guide portion 325, and the lower right cool air guide portion 326.

The space between the upper left cold air guide portion 323 and the upper right cold air guide portion 324 is the refrigerator compartment air passage 322a, and the space between the upper right cold air guide portion 324 and the lower right cold air guide portion 326 is the second freezer compartment air passage 322b. Between the lower right cool air guide part 326 and the lower left cool air guide part 325 is a first freezer compartment air path 322c, and between the lower left cool air guide part 325 and the upper left cool air guide part 323 is an ice making room air path 322d.

A twin damper 319a, a second freezer damper 319b, and an ice making chamber are respectively provided at the uppermost ends of the cold room air passage 322a, the second freezer air passage 322b, and the ice making air passage 322d. A damper 319c is provided.

Each damper may be fixed to either the front partition member 120 or the rear partition member 121 shown in FIG. Furthermore, since it is fixed so as to be sandwiched between the front partition member 120 and the rear partition member 121, it is possible to minimize not only the air path resistance but also the number of parts and the number of assembly steps. In addition, by sandwiching parts such as sponge tape between each damper and the front partition member 120 and the rear partition member 121, not only can the sound absorbing and vibration absorbing functions be provided, but a high-quality refrigerator 100 can be provided as well as the periphery of the damper It is possible to suppress cold air leakage from the air.

In a state where the partition member 311 is assembled to the refrigerator 100, the refrigerator compartment opening 319d, which is one opening of the twin damper 319a at the tip of the refrigerator compartment air passage 322a, is connected to the refrigerator compartment connection air provided in the partition wall 118. It communicates with the road 318a. The other opening 319e for the vegetable room communicates with the vegetable room connection air passage 318b similarly provided in the partition wall 118 and communicates with the vegetable room discharge port 329. The second freezer compartment damper 319b ahead of the second freezer compartment air passage 322b and the ice compartment damper 319c ahead of the ice compartment air passage 322d are respectively configured between the partition wall 118 and the partition member 311. The second freezer compartment discharge port 327 and the ice making chamber discharge port 328 communicate with each other.

The operation of the refrigerator according to the third embodiment of the present invention configured as described above will be described below.

The cold air discharged to the distribution air passage 322 by the blower 113 is diverted by each cold air guide section and flows to the air passage toward each storage chamber. The refrigerating room air passage 322a has a twin damper 319a, the second freezer compartment air passage 322b has a second freezer compartment damper 319b, and the ice making air passage 322d has an ice making room damper 319c. . Therefore, by controlling each damper, the amount of cold air flowing to the refrigerator compartment 104, the second freezer compartment 105, the ice making compartment 106, and the vegetable compartment 108 shown in FIG. 2 can be adjusted. As a result, the temperature of each storage chamber can be adjusted independently, and fine temperature adjustment is possible. In addition, when the amount of stored items in only one room increases, it is possible to cool only that storage room, and thus it is possible to minimize power consumption.

Since the first freezer compartment 107 has the lowest temperature zone, no damper is provided in the present embodiment, but the first freezer compartment air passage 322c or the first freezer compartment outlet 120b is used as necessary. By providing a damper on the surface, the temperature can be adjusted more delicately.

As described above, in the present embodiment, the refrigerating room air passage 322a has the twin damper 319a, the second freezer compartment air passage 322b has the second freezer compartment damper 319b, and is used for the ice making room. The air passage 322d has an ice making room damper 319c. By controlling each damper, the amount of cold air flowing to the refrigerator compartment 104, the second freezer compartment 105, the ice making compartment 106, and the vegetable compartment 108 can be adjusted, and the temperature of each storage compartment can be adjusted independently. And fine temperature adjustment is possible.

(Fourth embodiment)
8 is a front view of a refrigerator according to the fourth embodiment of the present invention, FIG. 9 is a sectional view taken along line 9-9 in FIG. 8, and FIG. 10 is a front view of a freezing expansion chamber according to the fourth embodiment of the present invention. . FIG. 11 is a cross-sectional view taken along line 11-11 in FIG. 10, and FIG. 12 is an enlarged cross-sectional view showing the positional relationship between the lower discharge port and the lower freezer compartment in the fourth embodiment of the present invention.

8 to 11, a heat insulating box 401, which is a refrigerator main body of the refrigerator 400, includes an outer box 402 mainly using a steel plate, an inner box 403 formed of a resin such as ABS, an outer box 402, and an inner box. It is comprised with foam heat insulating materials, such as hard foaming urethane, foam-filled in the space between 403, is heat-insulated with the circumference | surroundings, and is divided into the some storage chamber. A refrigeration room 404 as a first storage room is provided at the top, and a second freezing room 405 as a fourth storage room and an ice making room 406 as a fifth storage room are provided side by side under the refrigeration room 404. ing. A first freezing room 407 as a second storage room is arranged below the second freezing room 405 and the ice making room 406, and a vegetable room 408 as a third storage room is arranged at the bottom. Yes.

The refrigerating room 404 includes a refrigerating room right door 404a and a refrigerating room left door 404b, which are rotary doors, and a refrigerating room shelf 404c and a refrigerating room case 404d are appropriately disposed therein, so that the storage space can be easily arranged. is doing. On the other hand, the other storage room has a drawer-type door, and the second freezer compartment case 405b is placed on the frame attached to the second freezer compartment door 405a, and the frame attached to the ice compartment door 406a is attached to the frame. An ice-making chamber case (not shown) is placed. In addition, an upper freezer compartment case 407b and a lower freezer compartment case 407c are placed on a frame attached to the first freezer compartment door 407a. An upper vegetable compartment case 408b and a lower vegetable compartment case 408c are placed on the frame attached to the vegetable compartment door 408a.

The refrigerated room 404 is set in a refrigerated temperature zone, which is a temperature at which it is not frozen for refrigerated storage, and is usually set to 1 ° C to 5 ° C. The vegetable room 408 has a refrigeration temperature range equivalent to the refrigeration room 404 or a slightly higher temperature set vegetable temperature range of 2 ° C. to 7 ° C. The first freezer compartment 407 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for improving the frozen storage state, for example, −30 ° C. It may be set at a low temperature of -25 ° C.

The second freezer compartment 405 has the same freezing temperature zone as the first freezer compartment 407 or a slightly higher temperature setting of −20 ° C. to −12 ° C. The ice making chamber 406 makes ice with an automatic ice maker (not shown) provided at the upper part of the room with water sent from a water storage tank (not shown) in the refrigerator compartment 404, and an ice making case (not shown). Store in.

The top surface portion of the heat insulating box 401 has a stepped recess shape toward the back of the refrigerator, and a machine room 401a is formed in the stepped recess. The machine room 401a accommodates high-pressure components of the refrigeration cycle such as the compressor 409 and a dryer (not shown) for removing moisture. That is, the machine room 401 a in which the compressor 409 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 404.

Thus, by providing the machine room 401a and arranging the compressor 409 in the rear area of the uppermost storage room of the heat-insulating box 401, which is difficult to reach and is a dead space, the user can use the conventional refrigerator to The space in the machine room at the bottom of the easy-to-use heat insulating box 401 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

The refrigeration cycle is formed of a series of refrigerant flow paths sequentially including a compressor 409, a condenser, a capillary serving as a decompressor, and a cooler 412. As a refrigerant, for example, isobutane as a hydrocarbon-based refrigerant is enclosed. Yes.

Compressor 409 is a reciprocating compressor that compresses refrigerant by reciprocating a piston in a cylinder. In the case of a refrigeration cycle using a three-way valve or a switching valve for the heat insulation box 401, those functional components may be disposed in the machine room 401a.

In the present embodiment, the decompressor constituting the refrigeration cycle is a capillary, but an electronic expansion valve that can freely control the flow rate of the refrigerant driven by the pulse motor may be used.

In the present embodiment, the matters relating to the main part of the invention described below are the types in which the compressor 409 is arranged by providing a machine room in the rear region of the lowermost storage room of the heat insulating box 401 that has been conventionally general. It may be applied to other refrigerators.

A cooling chamber 410 for generating cold air is provided on the back surface of the first freezing chamber 407, and the storage chamber composed of the second freezing chamber 405, the ice making chamber 406, and the first freezing chamber 407 and the cooling chamber 410 are partitioned. Therefore, a partition member 411 is configured. A cooler 412 is disposed in the cooling chamber 410, and heat is exchanged with air warmed by heat exchange with the storage chamber to generate cold air. The lower space of the cooler 412 is provided with a radiant heating means 414 made of glass tube for defrosting the cooler 412 and its surroundings during cooling, and further, the lower part is removed from the defrosting generated during the defrosting. A drain pan 415 for receiving frost water, a drain tube 416 penetrating from the deepest part to the outside of the cabinet are configured, and an evaporating dish 417 is configured outside the downstream side. Instead of the radiant heating means 414, another shape heating means such as a pipe heater attached to the cooler 412 may be used, or the radiant heating means 414 and another shape heating means may be used in combination.

The partition member 411 includes a front partition member 420 that forms an outer shell on the storage chamber side and a rear partition member 421 that forms an outer shell on the cooling chamber side, and the rear partition member 421 includes a blower 413. A space between the front partition member 420 and the rear partition member 421 is a distribution air passage 422 that branches cold air toward each storage chamber.

Here, the blower 413 is an axial fan that rotates clockwise as viewed from the discharge surface. Hereinafter, when specifying the position of the refrigerator in the left-right direction, the rotation direction of the blower 413 is used as a reference. When using a fan with a counterclockwise rotation direction, the same effect can be obtained by reversing the left and right sides.

The discharge surface of the blower 413 is attached with an angle with respect to the front surface of the refrigerator 400, and the cold air is arranged to blow up obliquely upward. Further, when viewed from the front of the first freezer compartment 407, the center of the blower 413 is located on the left side with respect to the center of the first freezer compartment 407, and is located above the upper end of the upper surface of the upper freezer compartment case 407b. The portion of the front partition member 420 that faces the blower 413 constitutes a cool air rectification unit 420 a that protrudes toward the blower 413. The cool air rectification unit 420 a has a substantially truncated cone shape with the rotation axis of the blower 413 as the central axis. The front end of the cool air rectifying unit 420a is formed by a surface parallel to the discharge surface of the blower 413, and the diameter thereof is substantially the same as the boss diameter of the blower 413.

The front partition member 420 has an upper discharge port 420b below the cool air rectifying unit 420a and above the upper freezer compartment case 407b, and is integrally or separately provided between the lower freezer compartment case 407c and the upper freezer compartment case 407b. An air passage 423 is provided. The lower air passage 423 has a lower discharge port 423a at its tip. The upper discharge port 420b and the lower discharge port 423a communicate with the distribution air passage 422 and the first freezer compartment 407. The lower air passage 423 projects from the front partition member 420 into the first freezer compartment 407, and the lower outlet 423a is provided in front of the rear end flange of the lower freezer compartment case 407c as shown in FIG. Also, the left and right ends of the upper surface of the lower air passage 423 are chamfered with R of 5 mm or more, and both ends have a shape that is the lowest position in the upper surface.

The upper discharge port 420b includes a plurality of holes so that the width is distributed within the width of the upper freezer compartment case 407b. At least one of the holes passes through the center of the first freezer compartment 407 when viewed from the front. The lower air passage 423 is composed of a plurality of projecting air passages so that the width is distributed within the width of the lower freezer compartment case 407c, and has one or more lower discharge ports 423a at the tip of each projecting air passage.

The upper discharge port 420b and the lower discharge port 423a may be configured by a plurality of upper and lower holes, or the number of steps may be changed in the width direction, thereby determining the distribution of cool air in the storage case, It becomes possible to cool appropriately.

In addition, a second freezer compartment air passage 424 configured by a front partition member 420 and a partition wall 418 is provided between the partition wall 418 and the partition member 411 that insulate the refrigerator compartment 404 from other storage chambers. And an ice making room air passage 425. The second freezer compartment air passage 424 has a second freezer compartment outlet 424a, and the ice making air passage has an ice making outlet 425a. The distribution air passage 422, the second freezer compartment 405, and the ice making compartment 406, respectively. Is communicated. The second freezer compartment discharge port 424a and the ice making chamber discharge port 425a are provided in front of the second freezer compartment case 405b and the rear end flange of the ice making machine (not shown).

The second freezer compartment air passage 424 and the ice making compartment air passage 425 may be provided separately from the front partition member 420 and the partition wall 418, or may be divided and provided only partially.

The front partition member 420 has a straight inclined rib 420c that is downwardly inclined to the right of the cool air rectifying unit 420a above the upper discharge port 420b. The right end of the inclined rib 420c is on the right side of the right end of the upper discharge port 420b, and the angle formed by the upper side of the inclined rib 420c and the horizontal plane is 5 degrees or more.

Further, the front partition member 420 has a chevron rib 420d having a chevron shape above each hole above the lower air passage 423. The chevron rib 420d has a width larger than the lateral width of one hole of the lower discharge port 423a, and the angle between each side and the horizontal plane is 5 degrees or more.

It should be noted that the inclined rib 420c and the chevron rib 420d may each be configured by a curve such as an arc shape or a kamaboko shape.

Further, the front partition member 420 has valley ribs 420e in the valleys of the plurality of projecting air passages of the lower air passage 423. The valley rib 420e is a rib having a vertical linear shape, and has a length from the periphery of the end of the mountain-shaped rib 420d to the height of the lower discharge port 423a or the length below it.

The lower air passage 423 has a plurality of lower ribs 423b on the first freezing chamber 407 side. The lower rib 423 b starts from the upper surface of the lower air passage 423, passes through the lower discharge port 423 a, is connected to the lower air passage 423, and is connected to the front partition member 420. The lower side of the lower rib 423b has a steeper slope than the lower surface of the lower air passage 423, and the angle formed with the horizontal plane is 10 ° or more.

Similarly, the upper discharge port 420b has one or more upper ribs 420f. The upper rib 420f has a vertical straight shape protruding toward the first freezer compartment 407, and is provided at least on the side of the upper discharge port 420b far from the blower 413.

The second freezer compartment air passage 424 has a second freezer compartment rib 424b on the lower surface. The second freezer compartment rib 424b has a substantially triangular shape having two sides of the lower surface of the second freezer compartment air passage 424 and the front partition member 420, and extends across the width of the lower surface of the second freezer compartment air passage 424. Are provided.

In addition, the matter regarding the main part of the invention described below in this embodiment is applied to a refrigerator of a type having a rotating door in any storage room and having a structure in which a storage case is placed in the inner box 403. It doesn't matter.

The operation and action of the refrigerator 400 of the present embodiment configured as described above will be described below.

First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control device (not shown) according to the set temperature in the refrigerator, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 409 is condensed to some extent by a condenser (not shown). Further, the refrigerant prevents water droplets on the heat insulating box 401 via the side and back of the heat insulating box 401 that is the main body of the refrigerator, and a refrigerant pipe (not shown) disposed at the front opening of the heat insulating box 401. While condensing into liquid, it reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 409 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 412.

Here, in the cooling chamber 410, the air in each storage chamber collected by the operation of the blower 413 is heat-exchanged with the liquid refrigerant by the cooler 412, and the refrigerant in the cooler 412 evaporates. At this time, the air returned from the storage chamber becomes cool air for cooling each storage chamber again in the cooling chamber 410. The low-temperature cold air flows from the blower 413 through the distribution air passage 422 and is divided using the air passage and the damper, and passes through the refrigerating room 404, the second freezing room 405, the ice making room 406, the first freezing room 407, and the vegetable room 408. Cool to each target temperature range.

Since the blower 413 is an axial fan that rotates clockwise when viewed from the front of the refrigerator 400, the discharged cool air flows conically so as to spread radially while turning clockwise. Therefore, by forming the cool air rectifying unit 420a in accordance with the flow of the discharged cool air, the cool air can be smoothly sent to the distribution air path 422 without generating vortices. In addition, on the discharge side of the axial flow fan constituting the blower 413, an air flow returning toward the axial flow fan is generated in the center, but the upper surface diameter of the truncated cone of the cold air rectifying unit 420a is substantially the same as the boss diameter of the axial flow fan. Thus, since this return airflow can be suppressed, the energy given to the cold air from the blower 413 can be utilized for the blown air without waste.

The angle between the conical surface created by the discharged cool air and the rotation axis of the blower 413 differs depending on the flow rate and the number of rotations sent by the blower 413. It can be carried out. For example, a case will be described in which a blower 413 having a blade diameter of 90 mm to 410 mm is rotated around 1200 rpm to 3000 rpm to obtain an air volume of 0.5 m ³ / min to 1.0 m ³ / min. According to the experiment under this condition, the angle formed by the rotating shaft and the conical surface of the cool air rectifying unit 420a is preferably 50 ° to 85 °. By gradually increasing the distance to the blower 413 as it spreads in the radial direction, the kinetic energy of the discharged cold air can be efficiently recovered as pressure energy, so the discharge pressure is increased without increasing the work of the blower 413 Can do. As in this embodiment, in an air passage that has a large number of storage rooms, a wide variety of air blowing circuits, and requires a large number of air flow resistance components such as dampers, the work of the air blower 413 increases, so the cold air rectification unit The role played by 420a is greater.

A part of the cold air that spreads along the cold air rectification unit 420a is discharged into the first freezing chamber 407 from an upper discharge port 420b provided in the cold air rectification unit 420a. At this time, a force along the cold air rectification unit 420a is acting on the cold air due to the Coanda effect. Therefore, the cool air discharged from the holes provided in the cool air rectification unit 420 a is smoothly discharged toward the front of the blower 413. Therefore, it is possible to send cold air to the front of the blower 413, which has conventionally been difficult to send cold air.

Moreover, since the hole of the upper stage discharge port 420b located in the center of the 1st freezer compartment 407 has the upper stage rib 420f perpendicular | vertical to the edge | side far from the cold air rectification | straightening part 420a toward the storage room, the speed of cold air Of these, the radially spreading components can also be directed into the storage chamber. For this reason, the cool air which goes to the upper stage freezer compartment case 407b inside can be increased, and a stored item can be cooled more rapidly. Here, the upper rib 420f can be formed without increasing the number of parts by being molded integrally with the front partition member 420, so that variation in the wind direction due to the solid can be reduced. Furthermore, the structure which can suppress a deformation | transformation and dropping during use can be provided at low cost.

Next, effects of the inclined rib 420c, the chevron rib 420d, and the valley rib 420e will be described.

Since the cold air discharged from the blower 413 is colder than the first freezer compartment 407, frost or ice may adhere to the surface of the front partition member 420 on the first freezer compartment 407 side due to a temperature difference. When the inside of the cooling chamber 410 is heated using the radiant heating means 414, the frost or ice is dissolved by a part of the warm air in the cooling chamber 410 that has passed through the blades of the blower 413 and entered the distribution air passage 422. To do. The refrigerator 400 periodically stops cooling and heats the radiant heating means 414 in order to melt frost and ice adhering to the cooler 412 and its surroundings, so that the frost and ice on the surface of the front partition member 420 are also periodically There is no worry of growing and squeezing the storage space.

In this way, the water droplets on the surface of the front partition member 420 that has been dissolved hang down along the surface. When the dripping water drops reach the positions of the inclined rib 420c and the chevron rib 420d, they flow along the upper surface of each rib toward the lower side (the right end in the case of the inclined rib 420c and the both ends in the case of the chevron rib 420d). It does not flow directly underneath. That is, since the water droplets flow to the right by the inclined rib 420c, they do not flow to the upper discharge port 420b immediately below the inclined rib 420c.

The upper discharge port 420b is a hole opened in the front partition member 420, and cold air passes when the first freezing chamber 407 is cooled. Therefore, when a water droplet falls on the upper discharge port 420b, a water droplet is formed in the upper discharge port 420b. And the cooling capacity may be reduced by blocking the holes by forming ice during cooling. Therefore, by providing the inclined rib 420c, it is possible to realize a high quality capable of stably cooling the storage chamber.

Similarly, the mountain-shaped rib 420d causes water droplets to flow downward from both ends of the mountain-shaped rib 420d. Since the width of the chevron rib 420d is larger than the width of the lower air passage 423, water droplets flowing downward from both ends of the chevron rib 420d pass through both sides of the lower air passage 423 and flow downward. Accordingly, it is possible to prevent water from dripping onto the lower air passage 423 protruding inside the lower freezer compartment case 407c and dripping into the lower freezer compartment case 407c.

Since the lower freezer compartment case 407c is a storage container and does not have a hole at the bottom, if it drops into the lower freezer compartment case 407c, water accumulates inside the lower freezer compartment case 407c and freezes during cooling, so that ice grows. In addition, the stored item is fixed to the case with ice, so that the user's convenience is impaired and unpleasant feeling is given.

In the present embodiment, the water droplets flowing down the surface of the front partition member 420 flow from the lower end of the front partition member 420 to the bottom surface of the first freezing chamber 407 and then flow to the lower drain pan 415 and the drain tube 416. It is structured to be discharged outside the warehouse. However, by providing a mechanism for collecting the water droplets in the front partition member 420 and dropping it directly to the drain pan 415, the water droplets do not drop on the bottom surface of the first freezing chamber 407, which is a storage space, and the quality is further improved. A refrigerator can be provided.

Moreover, since the valley rib 420e exists in the valley of the lower air passage 423, the water flowing down from the mountain-shaped rib 420d is actively attracted to the valley rib 420e by the surface tension. Therefore, it is possible to further reduce the risk of water flowing down from the mountain-shaped rib 420d flowing into the lower air passage 423.

The valley rib 420e may be a shape or substance having an action of attracting water even if it is not a rib, and may be replaced with a recess or a hydrophilic surface of the same shape, or may be configured by fitting another part. You can also.

As described above, due to the effects of the inclined rib 420c, the mountain-shaped rib 420d, and the valley rib 420e, the water droplet does not flow into the upper discharge port 420b and the lower air passage 423. However, in the unlikely event that it flows, or when water droplets are generated immediately above the upper discharge port 420b or on the surface of the lower air passage 423, it is necessary to prevent the water droplets from icing in the discharge ports or dropping into the storage case. is there.

Here, since the upper discharge port 420b has the upper rib 420f, even when water droplets are generated at the upper discharge port 420b due to a temperature difference or water droplets generated above the upper discharge port 420b flow down, the upper discharge port 420b travels along the upper rib 420f. Then, it can flow to below the upper discharge port 420b. Therefore, it is possible to prevent water droplets from accumulating in the upper discharge port 420b and provide a high-quality refrigerator. If the upper rib 420f is configured horizontally, the water droplets do not flow down, and the phenomenon of being cooled by the discharged cool air and becoming ice may be repeated, and the upper discharge port 420b may be blocked.

Also, the lower air passage 423 has a lower rib 423b. Water droplets generated or flowed down on the upper surface of the lower air passage 423 or around the lower discharge port 423a can reach the surface of the front partition member 420 below the lower air passage 423 through the lower rib 423b. At this time, since the lower side of the lower rib 423b is steeper than the lower surface of the lower air path 423, water flows preferentially through the lower rib 423b over the surface of the lower air path 423. The risk of dropping into the freezer compartment 407c can be further reduced. Here, when the angle formed by the lower side of the lower rib 423b and the horizontal plane is 10 ° or more, it becomes possible to attract and guide water more reliably. Furthermore, if the installation interval of the lower ribs 423b is too narrow, the wind path resistance of the cold air increases to reduce the air blowing efficiency and increase the power consumption, and if it is too wide, the possibility of water drops dripping from the gaps of the lower ribs 423b increases. Although it is necessary to set appropriately according to the wind speed and air volume of the chilled air to be circulated, and the temperature range of the storage room, generally 10 mm to 20 mm is desirable.

Further, since the left and right ends of the upper surface of the lower air passage 423 are chamfered by a large R, water droplets placed on the lower air passage 423 easily flow to both sides of the lower air passage 423 instead of the lower air outlet 423a side. . Therefore, when water droplets flow down from the chevron rib 420d onto the lower air passage 423, or when water droplets are generated between the chevron rib 420d and the lower discharge port 423a, the water droplets are transferred from the lower discharge port 423a to the lower freezer compartment case 407c. And can be guided from both sides of the lower air passage 423 to the surface of the front partition member 420.

Finally, the second freezer compartment rib 424b will be described. The second freezer compartment rib 424b guides water droplets generated on the lower surface of the second freezer compartment air passage 424 to the surface of the front partition member 420, thereby preventing the second freezer compartment rib 424b from dropping into the second freezer compartment case 405b. it can. Since the second freezer compartment rib 424b has a substantially triangular shape with the lower surface of the second freezer compartment air passage 424 as one side, the lower side is steeper than the lower surface of the second freezer compartment air passage 424. Water droplets flow through the second freezer compartment rib 424b preferentially over the second freezer compartment air passage 424. The second freezer compartment rib 424b may have other shapes such as a trapezoidal shape instead of a substantially triangular shape as long as the lower surface of the second freezer compartment air passage 424 and the front partition member 420 have two sides. It is desirable to have a steeper slope than the lower surface of the second freezer compartment air passage 424 as in the case of a triangle. Furthermore, if the interval between the second freezer compartment ribs 424b is too narrow, it is easy to hold water droplets, and if it is too wide, there is a high possibility that waterdrops will drip from the gap between the second freezer compartment ribs 424b. ~ 20 mm is desirable.

Since the second freezer compartment air passage 424 is above the blower 413, the warm air in the cooling chamber 410 leaked from the blower 413 during the defrosting operation further leaks into the storage space from the upper discharge port 420b. Rises and hits the second freezer compartment air passage 424. The warm air is cooled by the wall surface of the second freezer compartment air passage 424 and is condensed on the surface of the air passage, so that the lower surface of the second freezer compartment air passage 424 is liable to have water droplets, so that the effect of the second freezer compartment rib 424b is achieved. Can be said to be very large.

It should be noted that the draining structure such as the inclined rib 420c, the chevron rib 420d, the valley rib 420e, the upper rib 420f, the lower rib 423b, the second freezer compartment rib, etc. has a second freezing compartment 405, an ice making compartment 406, This is effective not only in the first freezing chamber 407 but also in the vicinity of the cold air outlet of other storage chambers where a temperature difference is likely to occur. If necessary, by providing ribs in the outlet of the refrigerator compartment 404 and the outlet of the vegetable compartment 408, water droplets accumulate in the refrigerator compartment shelf 404c, refrigerator compartment case 404d, upper vegetable compartment case 408b, etc. Wetting can be prevented.

As described above, in this embodiment, the upper discharge port 420b, the lower discharge port 423a, and the second freezer compartment discharge port 424a are inclined ribs 420c, chevron ribs 420d, valley ribs 420e, It has a draining structure with ribs 420f, lower ribs 423b, and second freezer compartment ribs. As a result, water droplets generated around the discharge port or water droplets flowing from above the discharge port can be guided so as to flow below the discharge port while avoiding the discharge port. It is possible to provide a high-quality refrigerator that prevents dripping on the member.

Further, since the chevron rib 420d has a width larger than the width of the lower discharge port 423a, the water droplets formed above the lower discharge port 423a travel along the chevron rib 420d to avoid the lower air path from side to side. run down. Therefore, in order to suppress falling from the lower air passage 423 to the lower freezer compartment case, it is possible to provide a high-quality refrigerator without accumulating in the lower freezer compartment case on which stored items are placed. At this time, since the chevron rib 420d is separated from the lower discharge port 423a and is provided at a position where the flow of cool air is gentle, it prevents air flow resistance and impairs the blowing efficiency, and suppresses an increase in power consumption.

Furthermore, the upper surface of the inclined rib 420c has a straight line shape with the right end being the lowest, and the upper surface of the chevron rib 420d has a mountain shape having the lowest left and right ends. As a result, the water droplets generated above the upper discharge port 420b and the lower discharge port 423a flow down to the ribs and then immediately flow to the lower side without accumulating on the ribs, and further downward along the surface of the front partition member 420. run down. Therefore, it is possible to prevent water droplets from collecting on the ribs and falling over the ribs and dropping from the front to the cold air discharge port. The upper discharge port 420b is blocked by icing, or water droplets collect in the lower freezer compartment case. The risk can be further reduced.

This effect makes it possible to make the flow smoother and higher when the upper surface of each rib has an angle of 5 ° or more with respect to the horizontal plane.

In addition, an upper discharge port 420b, a lower discharge port 423a, and a second freezer compartment discharge port 424a have an upper rib 420f, a lower rib 423b, a valley rib 420e, and a second freezer compartment rib 424b that guide water flow therearound. Have As a result, water droplets generated or flowing around the discharge port are attracted not to the discharge port but to each rib and flow further down along each rib. Therefore, it is possible to provide a high-quality refrigerator in order to prevent water droplets from collecting at the discharge port or falling from the discharge port to the mounting member.

Furthermore, the valley rib 420e is provided in the lower periphery of both ends of the mountain-shaped rib 420d. As a result, the water droplets that flow down from both ends of the mountain-shaped rib 420d while avoiding the lower air passage 423 in the left-right direction are attracted to the valley rib 420e even when the upper water droplets are collected and the amount is high or the momentum is strong. Therefore, it flows along the valley rib 420e. Therefore, it is possible to minimize the risk that water droplets away from the mountain-shaped rib 420d will flow again into the lower air passage 423.

Further, the valley rib 420e is a rib formed integrally with the front partition member 420. As a result, water drops can be reliably guided to the bottom of the discharge port without increasing the number of parts, and therefore the valley rib 420e is less likely to be deformed or dropped during use of the refrigerator 400. Therefore, a high-quality refrigerator that can maintain a high-quality state during the period of use can be provided at low cost.

The upper rib 420f and the lower rib 423b are ribs in contact with the upper side and the lower side of the upper discharge port 420b and the lower discharge port 423a. As a result, the water droplets that have flowed down to the discharge port are guided to the bottom of the discharge port through the ribs without accumulating at the discharge port or falling off the upper side and falling into the lower freezer compartment case 407c. Therefore, it is possible to provide a high-quality refrigerator that further reduces the risk of blocking the upper discharge port 420b due to icing or the accumulation of water droplets in the lower freezer compartment case.

Also, the lower air passage 423 and the second freezer compartment air passage 424 each have a lower rib 423b and a second freezer compartment rib 424b on the lower surface. As a result, water drops that have flowed down to the lower surface of the air passage are guided from the tip of the cool air discharge air passage to the base through the rib. Therefore, it can prevent dripping from the front-end | tip part of the cool air discharge air path around a discharge outlet to the lower freezer compartment case 407c and the 2nd freezer compartment case 405b, and can provide a high quality refrigerator.

Furthermore, the lower ribs 423b and the lower sides of the second freezer compartment ribs 424b form a larger angle with respect to the horizontal plane than the lower surfaces of the lower airflow passage 423 and the second freezer compartment air passage 424. As a result, the flowing water droplets tend to flow along the lower side of the rib rather than the lower surface of the air passage, so that the water droplets can be reliably guided by the guide portion.

At this time, the angle between the lower rib 423b and the lower side of the second freezer compartment rib 424b and the horizontal plane is 10 ° or more, so that it is possible to guide the flowing water droplets along the guide portion more smoothly. Become. Therefore, dripping to the lower freezer compartment case 407c and the second freezer compartment case 405b can be further suppressed.

(Fifth embodiment)
FIG. 13: is a partition member front view of the refrigerator in the 5th Embodiment of this invention.

In addition, although description is abbreviate | omitted about the part which can apply the same structure and the same technical idea as 4th Embodiment, this embodiment is combined with the structure of 4th Embodiment as long as there is no malfunction. It is possible to apply.

In FIG. 13, the front partition member 520 divides the storage chamber composed of the second freezing chamber 405, the ice making chamber 406, and the first freezing chamber 407 from the distribution air passage 422 in the same manner as the front partition member 420 of FIG. 9. To do. The front partition member 520 has a lower air passage 523 integrally or separately between the lower freezer compartment case 407c and the upper freezer compartment case 407b, and the lower air passage 523 has a lower outlet 523a at the tip thereof.

Further, the front partition member 520 has a hanging rib 520d from the upper side of the lower air passage 523 to the side. The number of drooping ribs is the same as the number of lower air passages 523, the upper surface has the highest mountain shape at the center, the side surface extending from the left end of the upper surface is substantially vertical, and the lower end reaches below the lower surface of the lower air passage 523. . The right end of the upper surface of the drooping rib 520d that does not have a side surface is located above the upper surface of the drooping rib 520d adjacent to the right. The gap between the right end of the drooping rib 520d and the left upper surface of the drooping rib 520d adjacent to the right is preferably 5 mm or more so that water drops can easily flow.

In addition, the side may be provided on the right side of the upper side, or may be used in combination with the chevron rib 420d of the fourth embodiment.

The operation of the refrigerator according to the fifth embodiment of the present invention configured as described above will be described below.

Water droplets generated above the drooping rib 520d flow along the surface of the front partition member 520 to the drooping rib 520d. The water droplets that have reached the drooping rib 520d are divided and flow downward by the inclination of the upper surface of the drooping rib 520d. At this time, the water droplets flowing in the left direction are directly guided to the lower side of the lower air passage 523 along the side surface of the drooping rib 520d. Conversely, the water droplets flowing in the right direction are separated from the drooping rib 520d from the right end of the upper surface of the drooping rib 520d, and flow downward along the surface of the front partition member 520. Here, the right end of the drooping rib 520d is located above the upper left surface of the drooping rib 520d adjacent to the right. For this reason, the water droplets flowing from the right end of the drooping rib 520d are received by the upper left surface of the drooping rib 520d adjacent to the right, and in the same way as the water droplets flowing leftward, below the lower air path 523 along the side surface. Be guided.

Here, since the drooping rib 520d is connected to the upper surface and the side surface, it is possible to guide the water drop received above the lower air passage 523 to the lower air passage 523 without releasing it. Therefore, the received water droplet can be more reliably moved away from the lower air passage 523 and the lower outlet 523a. Thus, the effect can be further enhanced by combining the portion for receiving the water droplet and the portion for guiding the water droplet.

In addition, by providing the valley rib 420e of the first embodiment below the right end of the rightmost drooping rib 520d, water droplets flowing from the right end can be guided to the bottom of the lower air passage 523.

As described above, in the present embodiment, the upper surface of the drooping rib 520d has a width larger than the width of the lower discharge port 523a, so that water droplets formed above the lower discharge port 523a travel along the drooping rib 520d. Then, it flows down, avoiding the lower air path to the left and right. Therefore, in order to prevent water droplets from falling from the lower air passage 523 to the lower freezer compartment case, it is possible to provide a high-quality refrigerator without accumulating in the lower freezer compartment case on which stored items are placed.

The upper surface of the drooping rib 520d has the lowest mountain shape at the left and right ends, so that water droplets generated above the lower discharge port 523a flow down to the drooping rib 520d and immediately flow down without collecting. Therefore, it is possible to prevent the accumulated water droplets from dripping over the ribs and falling from the front to the lower discharge port 523a.

Further, since the drooping rib 520d has a side surface passing through the side of the lower air passage 523 and extending below the lower air passage 523, water drops received on the upper surface of the drooping rib 520d are not separated from the lower air passage. It can be reliably guided to below 523.

As described above, the present invention includes a plurality of storage chambers, a cooler that generates cool air for cooling the storage chamber, and a blower that forcibly blows the cool air generated by the cooler into the storage chamber. In addition, a distribution air passage that distributes the cool air discharged from the blower to each of the storage chambers, a front partition member that is positioned between the distribution air passage and the storage chamber, and a space between the distribution air passage and the cooler. And a rear partition member. And it has the cool air guide part comprised by at least any one of a front partition member and a rear partition member in a distribution air path.

Thereby, since the front partition member and the rear partition member constituting the outer shell of the distribution air passage also serve as a guide for determining the flow of the cold air, the number of parts constituting the air passage can be minimized. And the inside of the very smooth distribution wind path through which cool air flows smoothly can be comprised, and it becomes possible to reduce power consumption by improving ventilation efficiency. In addition, since it can be configured only by the front partition member and the rear partition member, not only the material cost and the processing man-hour are not increased, but also the entire partition member is reduced without reducing the air passage cross-sectional area that reduces the air blowing efficiency. The volume can be reduced. Therefore, since the storage space can be increased, user convenience can be improved.

Further, according to the present invention, the downstream portion of the distribution air passage is branched into a plurality of air passages, has a plurality of discharge ports communicating with the plurality of storage chambers, and the cold air guide portion is provided at a position facing the blower. A first surface and a second surface adjacent to the air passage not adjacent to the first surface; As a result, it is possible to efficiently distribute the necessary amount of cool air discharged from the blower to a plurality of storage chambers, and to cool each storage chamber to a predetermined temperature without increasing the air loss. Is possible.

In the present invention, the first surface and the second surface form an acute angle. Thereby, since it becomes possible to abolish a corner part etc. in which the discharge cold air of a blower tends to make a vortex, the refrigerator which can blow air to each storage room more efficiently can be provided.

Further, the present invention is constituted by a surface in which the first surface and the second surface are continuous. As a result, the branch point downstream of the distribution air passage becomes a single line, so that the cold air is not branched by the surface, and the cold air discharged from the blower is reliably guided to one of the front air passages. Therefore, it is possible to prevent a decrease in air blowing efficiency such as stagnation and vortex.

In the present invention, the first surface and the second surface are constituted by ribs formed on at least one of the front partition member and the rear partition member. As a result, the inside of the cold air guide portion can be made hollow, and the material cost can be further reduced. Moreover, since the design change of the metal mold | die which shapes a partition member can be performed easily, the cost at the time of the improvement of an air path accompanying the layout change of a storage chamber, and correction and adjustment of an air path can be reduced.

Further, in the present invention, the first surface and the second surface are constituted by uneven portions formed on at least one of the front partition member and the rear partition member. This makes it possible to prevent a wasteful flow of cool air flowing into the cool air guide portion while reducing the material cost by making the cool air guide portion hollow, thereby providing a smoother air path.

Further, in the present invention, the concavo-convex portion protrudes inside the distribution air passage in the front-rear direction of the refrigerator main body with respect to the reference surface of the front partition member or the rear partition member formed integrally. Thereby, since it is possible to prevent the cool air from flowing into the invalid space in the distribution air passage, more efficient air blowing is possible. Further, by projecting into the air passage, the outward projection of the distribution air passage can be minimized, the volume occupied by the entire partition member can be reduced, and the storage chamber volume can be increased. Can do.

Further, in the present invention, the cold air guide portion is constituted by both the front partition member and the rear partition member. Thereby, it becomes possible to make the depth dimension of a single partition member small, and it can improve workability.

Further, according to the present invention, the front partition member has a cold air rectification unit including a surface protruding toward the inside of the distribution air passage on a surface facing the blower. As a result, the cold air discharged from the blower is rectified radially by the cold air rectification unit and flows into the distribution air passage, so that vortices generated between the blower and the front partition member can be suppressed, and the cold air can be more smoothly discharged. It is possible to blow.

Further, according to the present invention, the cold air rectification portion has a substantially circular shape, and the first surface has a curve that is substantially concentric with the cold air rectification portion. Accordingly, it is possible to configure the cool air guide unit in accordance with the speed of the cool air in the swirling direction accompanying the rotation of the blower, and it is possible to guide the cool air to the discharge port without stalling.

Further, the present invention includes a damper capable of adjusting the opening area in an air passage that sends cold air to a plurality of storage rooms. Thereby, since it becomes possible to adjust the ventilation volume to a predetermined | prescribed storage room according to a condition with a damper, since the temperature of each storage room can be controlled independently, temperature adjustment can be carried out more precisely.

In the present invention, the contact point between the first surface and the second surface is located above the horizontal plane including the center point of the blower. As a result, the warm air leaked from the blower during defrosting can enter a plurality of tip air passages when it rises, so it becomes possible to store more warm air in the distribution air passage, It is possible to reduce the amount of warm air that leaks.

The present invention also includes a storage chamber, a cooling chamber that generates cool air for cooling the storage chamber, a cooler provided in the cooling chamber, and a blower that forcibly blows the cool air generated by the cooler to the storage chamber. Is provided. In addition, a partition member that divides the storage chamber and the cooling chamber, a discharge port that is provided in the partition member and discharges cold air to the storage chamber, and a mounting member that is provided in the storage chamber and mounts stored items are provided. The discharge port is located in front of the rear end portion of the mounting member. And the drainage structure which prevents the dripping of water in a mounting member is provided in the periphery of a discharge outlet. As a result, water droplets generated around the discharge port or water droplets flowing from above the discharge port can be guided so as to flow under the discharge port while avoiding the discharge port. It becomes possible to provide a high-quality refrigerator that prevents dripping.

Further, according to the present invention, the draining structure is constituted by a protrusion having a width larger than the width of the discharge port above the discharge port. As a result, the water droplets formed above the discharge port are received by the protrusions and flow downward from both sides of the discharge port while avoiding the cold air discharge air passage from side to side. Therefore, it is possible to provide a high-quality refrigerator that prevents staying at the discharge port and dripping onto the mounting member.

Further, in the present invention, the upper surface of the protrusion is configured at a position where at least one of the left and right ends is the lowest. As a result, the water droplets generated above the discharge port flow down to the protrusion and then immediately flow down to a lower position without accumulating in the protrusion, thus more reliably preventing the stay at the discharge port and dripping on the mounting member. It becomes possible.

In the present invention, the upper surface of the protrusion has an angle of 5 ° or more with respect to the horizontal plane. Thereby, the water that has fallen on the protrusion can flow to a lower position more smoothly.

Further, according to the present invention, the draining structure is constituted by a guide portion configured in the vertical direction around the discharge port. As a result, the water droplets generated around the discharge port or the water droplets flowing from above the discharge port are attracted not to the discharge port but to the guide unit and flow further down the guide unit. It is possible to provide a high-quality refrigerator that prevents dripping on the mounting member.

Further, the present invention comprises a draining structure comprising a protrusion having a width larger than the width of the discharge port above the discharge port, and a guide portion configured in the vertical direction around the discharge port, Provided at the lower periphery of at least one of the left and right ends of the protrusion. As a result, water drops that have flowed down from both ends of the protrusion while avoiding the cool air discharge air passage in the left-right direction flow along the guide part, thus minimizing the risk of water drops away from the protrusion to the discharge port again. Can be suppressed.

Further, according to the present invention, the guide portion has a rib shape provided on the side of the discharge port. As a result, water droplets can be guided to the bottom of the discharge port without increasing the number of parts, so that the guide part is reduced from being deformed or dropped during use, and staying at the outlet and dripping onto the mounting member It is possible to provide a high-quality refrigerator that can keep the function of preventing the use during the period of use at low cost.

Further, in the present invention, the guide portion has a rib shape in contact with the upper side and the lower side of the discharge port. Accordingly, since the water droplets are guided to the bottom of the discharge port through the guide portion, it is possible to provide a high-quality refrigerator that prevents staying at the discharge port and dripping onto the mounting member.

Further, in the present invention, the guide portion is a rib protruding from the lower surface of the discharge air passage that guides cold air to the discharge port. As a result, the water droplets that have flowed down under the discharge port are guided from the tip of the cool air discharge air passage to the root through the rib, so that it is prevented from dripping onto the mounting member from the front end of the cold air discharge air passage around the discharge port. And a high-quality refrigerator can be provided.

Also, in the present invention, the guide portion is a rib protruding from the upper surface of the discharge air passage that guides cold air to the discharge port. As a result, the water droplets that have flowed down to the upper surface of the discharge air passage are attracted to and guided by the ribs, so that they can be prevented from dripping onto the mounting member from the front end of the cold air discharge air passage around the discharge port, and a high-quality refrigerator can be installed. Can be provided.

Further, according to the present invention, the angle formed between the lower side of the guide portion and the horizontal plane is made larger than the angle formed between the lower surface of the cool air discharge air passage and the horizontal plane. Thereby, since the flowing water droplet tends to flow along the lower side of the guide portion from the lower surface of the cool air discharge air passage, the water droplet can be reliably guided by the guide portion.

Further, according to the present invention, the angle formed by the lower side of the guide portion and the horizontal plane is 10 ° or more. Thereby, since it becomes possible to guide the flowing water droplets along the guide portion more smoothly, dripping onto the mounting member can be further suppressed.

As described above, the refrigerator according to the present invention can provide the refrigerator that can efficiently cool the air discharged from the blower to the plurality of storage rooms and cool it to the respective temperatures. It can also be applied to products such as coolers using air blowing technology.

DESCRIPTION OF SYMBOLS 1 Partition member 1a Front partition plate 1b Heat insulating material 2,62 Cooler room 3,34 Freezer room 4 Damper device 5,63 Blower 6 Rear partition plate 7 Air path for refrigerator compartment 8 Air path for freezer compartment 8a Freezer compartment cooling port 30 Refrigerator body 31 Freezing temperature room 32 Quick freezing room 33, 106, 406 Ice making room (storage room)
36, 104, 404 Refrigerated room (storage room)
37,108,408 Vegetable room (storage room)
41 Quick-frozen container 42 Upper container 42c, 43c, 44c Container flange rear wall 43 Middle container 44 Lower container 50 Partition member 50a Cold air passage 52, 53, 54 Cold air discharge air passage 52a, 53a, 54a Discharge port 61 Cooler 100, 400 Refrigerator 101, 401 Heat insulation box 101a, 401a Machine room 102, 402 Outer box 103, 403 Inner box 104a, 404a Refrigeration room right door 104b, 404b Refrigeration room left door 104c, 404c Refrigeration room shelf 104d, 404d Refrigeration room case 105 405 Second freezer compartment (storage room)
105a, 405a Second freezer compartment door 105b, 405b Second freezer compartment case 106a, 406a Ice making door 107, 407 First freezer compartment (storage room)
107a, 407a First freezer compartment door 107b, 407b Upper freezer compartment case 107c, 407c Lower freezer compartment case 108a, 408a Vegetable compartment door 108b, 408b Upper vegetable compartment case 108c, 408c Lower vegetable compartment case 109, 409 Compressor 110, 410 Cooling chamber 111, 211, 311, 411 Partition member 112, 412 Cooler 113, 413 Blower 114, 414 Radiant heating means 115, 415 Drain pan 116, 416 Drain tube 117, 417 Evaporating dish 118, 418 Partition wall 118a, 318a Refrigeration Room connection air path 118b, 318b Vegetable room connection air path 119 Damper 120, 420, 520 Front partition member 120a, 420a Cold air rectification unit 120b First freezer compartment outlet 121, 421 Rear partition member 122, 22 2,322,422 Distributing air passages 122a, 222a, 322a Refrigerating room air passages 122b, 222b, 322b Second freezer compartment air passages 122c, 222c, 322c First freezer compartment air passages 122d, 222d, 322d Ice making Room air passage 123, 223, 323 Upper left cold air guide part 123a Front guide part 123b Rear guide part 123c Guide convex part 123d Guide ribs 123e, 223e Inner side surface (first surface)
123f, 223f Outside surface (second surface)
124, 224, 324 Upper right cool air guide part 125, 225, 325 Lower left cool air guide part 126, 226, 326 Right lower cool air guide part 126a, 226a Upper surface (first surface)
126b, 226b Lower surface (second surface)
127,327 Second freezer discharge port 128,328 Ice chamber discharge port 129,329 Vegetable room discharge port 319a Twin damper 319b Second freezer damper 319c Ice chamber damper 319d Refrigeration chamber opening 319e Vegetable room opening 420b Upper discharge port 420c Inclined rib 420d Angle rib 420e Valley rib 420f Upper rib 423,523 Lower air passage 423a, 523a Lower air discharge port 423b Lower air rib 424 Freezer compartment air passage 424a Second freezer compartment discharge port 424b Second freezer compartment rib 425 Icemaker air channel 425a Icemaker outlet 520d Drooping rib

Claims (24)

1. A plurality of storage chambers; a cooler that generates cool air for cooling the storage chamber; a blower that forcibly blows the cool air generated by the cooler to the storage chamber; and the cool air discharged from the blower A distribution air passage for distributing to each of the storage chambers, a front partition member positioned between the distribution air passage and the storage chamber, and a rear partition member positioned between the distribution air passage and the cooler. A refrigerator having a cold air guide portion configured by at least one of the front partition member and the rear partition member in the distribution air passage.
2. A downstream portion of the distribution air passage is branched into a plurality of air passages, has a plurality of outlets communicating with the plurality of storage chambers, and the cold air guide portion is provided at a position facing the blower. The refrigerator according to claim 1, having a second surface and a second surface adjacent to the air passage not adjacent to the first surface.
3. The refrigerator according to claim 2, wherein the first surface and the second surface form an acute angle.
4. The refrigerator according to claim 2 or 3, wherein the first surface and the second surface are continuous surfaces.
5. The refrigerator according to claim 2 or 3, wherein the first surface and the second surface are configured by ribs formed on at least one of the front partition member and the rear partition member.
6. The refrigerator according to any one of claims 2 and 3, wherein the first surface and the second surface are constituted by uneven portions formed on at least one of the front partition member and the rear partition member.
7. The refrigerator according to claim 6, wherein the concavo-convex portion protrudes inside the distribution air passage in the front-rear direction of the refrigerator body with respect to a reference surface of the front partition member or the rear partition member formed integrally.
8. The refrigerator according to any one of claims 1 to 3, wherein the cold air guide portion is configured by both the front partition member and the rear partition member.
9. The refrigerator according to any one of claims 1 to 3, wherein the front partitioning member has a cold air rectification unit including a surface protruding toward the inside of the distribution air passage on a surface facing the blower.
10. The refrigerator according to claim 9, wherein the cold air rectification unit has a circular shape, and the first surface has a curve that is concentric with the cold air rectification unit.
11. The refrigerator according to any one of claims 1 to 3, further comprising a damper capable of adjusting an opening area in an air passage for sending cold air to the plurality of storage rooms.
12. 4. The refrigerator according to claim 2, wherein the contact point between the first surface and the second surface is located above a horizontal plane including a center point of the blower.
13. A storage chamber, a cooling chamber that generates cool air for cooling the storage chamber, a cooler provided in the cooling chamber, a blower that forcibly blows the cool air generated by the cooler to the storage chamber, and A partition member that partitions the storage chamber and the cooling chamber; a discharge port that is provided in the partition member and that discharges cool air to the storage chamber; and a mounting member that is provided in the storage chamber and on which stored items are placed. A refrigerator provided with a draining structure in which the discharge port is positioned in front of the rear end portion of the mounting member and prevents dripping into the mounting member around the discharge port.
14. The refrigerator according to claim 13, wherein the draining structure is configured by a protrusion having a width larger than the width of the discharge port above the discharge port.
15. The refrigerator according to claim 14, wherein at least one of the left and right ends of the upper surface of the protrusion is at the lowest position of the protrusion.
16. The refrigerator according to claim 14, wherein the upper surface of the protrusion has an angle of 5 ° or more with respect to a horizontal plane.
17. The refrigerator according to claim 13, wherein the draining structure is configured by a guide portion configured in a vertical direction around the discharge port.
18. The draining structure includes a protrusion having a width larger than the width of the discharge port above the discharge port and a guide portion configured in a vertical direction around the discharge port, and the guide portion includes the protrusion. The refrigerator of Claim 13 provided in the downward periphery of at least any one of the left-right both ends of a part.
19. The refrigerator according to claim 17 or 18, wherein the guide part is a rib provided on a side of the discharge port.
20. The refrigerator according to claim 17, wherein the guide portion has a rib shape in contact with an upper side and a lower side of the discharge port.
21. The refrigerator according to any one of claims 17 and 20, wherein the guide portion is a rib protruding on a lower surface of a discharge air passage that guides cool air to the discharge port.
22. The refrigerator according to any one of claims 17 and 20, wherein the guide portion is a rib protruding on an upper surface of a discharge air passage that guides cold air to the discharge port.
23. The refrigerator according to claim 21, wherein an angle formed between a lower side of the guide portion and a horizontal plane is larger than an angle formed between a lower surface of the discharge air passage and a horizontal plane.
24. The refrigerator according to claim 21, wherein an angle formed between a lower side of the guide portion and a horizontal plane is 10 ° or more.

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