JP5838300B2 - refrigerator - Google Patents

Description

  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 strict, 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 configuration in which a rectifying guide plate is provided on the discharge side of the blower is used. (For example, refer to Patent Document 1).

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

  FIG. 8 is a plan sectional view of a conventional refrigerator. In the figure, a cooling chamber 52 for generating cool air is disposed on the back surface of the storage chamber 51, and the cooling chamber 52 and other spaces are separated by a cooling chamber cover 53. A cooler 54 is disposed in the cooling chamber 52, and a blower 55 is connected to a blower motor 56 above the cooler 54. Further, on the front surface of the cooling chamber cover 53, a partition plate 57 separates the air passage through which the cool air discharged from the blower 55 passes and the storage chamber 51. The partition plate 57 is integrally formed with a rectifying guide plate 58 having a conical shape at a position facing the blower 55 and a discharge port 59 in a flat portion.

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

  When the air in the cooling chamber 52 is cooled by the cooler 54 and is discharged toward the rectifying guide plate 58 by the blower 55, the air flows out radially along the conical surface of the rectifying guide plate 58. Then, after diffusing radially, the air is blown into the storage chamber 51 through the discharge port 59.

  As described above, in the conventional refrigerator, by providing the flow straightening guide plate 58 integrally with the partition plate 57 on the front surface of the blower 55, the discharge cold air is limited to the radial flow, and the reverse flow toward the center of the blower 55 is prevented. At the same time, the rectified cold air can be directly sent to the storage chamber 51 from the discharge port 59, and a refrigerator capable of efficiently cooling the storage chamber while minimizing the loss of the cold air can be provided.

Japanese Patent No. 3631316

  However, in the conventional refrigerator configuration, the cold air rectified radially has a large force to spread outward when discharged from the discharge port 59 provided in the plane of the partition plate 57. There was a problem that it was difficult to cool the front of the blower 6 which is the center of the storage room 51 where there are many things.

  Furthermore, since the cold air discharged outward flows along the inner wall of the storage chamber 51, heat exchange with the outside air through the wall of the refrigerator main body is promoted, which may increase power consumption.

  An object of the present invention is to solve the conventional problem and to provide a refrigerator capable of efficiently delivering cool air discharged from a blower to the center of the storage room without loss and cooling the storage room efficiently.

  In order to solve the conventional problems, the refrigerator of the present invention forcibly blows the storage room, a cooler that generates cool air for cooling the storage room, and the cool air generated by the cooler to the storage room. In a refrigerator including a blower and a partition member positioned between the storage chamber and the blower, the partition member projects a discharge port for sending cool air to the storage chamber and a portion facing the blower toward the blower. A cool air rectification unit, and at least a part of the discharge port is disposed inside the cold air rectification unit. Thereby, the cold air discharged from the blower is rectified radially by the cold air rectification unit, and is discharged into the storage chamber without loss. At this time, since a force acts on the cold air along the cold air rectification unit due to the Coanda effect, the cold air discharged is discharged toward the front of the blower. As a result, the cool air can be led to the center of the storage chamber in front of the blower, which could not be sent directly, so that the stored items can be cooled effectively.

  The refrigerator of the present invention can provide a refrigerator that can cool the storage room efficiently by delivering the cool air discharged from the blower to the center of the storage room without loss.

Front view of the refrigerator in Embodiment 1 of the present invention The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention The principal part front view in Embodiment 1 of this invention The principal part longitudinal cross-sectional enlarged view in Embodiment 1 of this invention Main part plane sectional drawing in Embodiment 1 of this invention The perspective view of the storage chamber side partition member in Embodiment 1 of this invention Longitudinal sectional view of the refrigerator in the second embodiment of the present invention Planar sectional view of a conventional refrigerator

  The invention according to claim 1 is a storage chamber, 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 storage chamber And a partition member positioned between the blower and the blower, wherein the partition member includes a discharge port for sending cold air to the storage chamber, and a cold air rectifying unit that protrudes a portion facing the blower toward the blower side. And at least a part of the discharge port is disposed in the cold air rectification unit. Thereby, the cold air discharged from the blower is rectified radially by the cold air rectification unit, and is discharged into the storage chamber without loss. At this time, since a force acts on the cold air along the cold air rectification unit due to the Coanda effect, the cold air discharged is discharged toward the front of the blower. As a result, the cool air can be led to the center of the storage chamber in front of the blower, which could not be sent directly, so that the stored items can be cooled effectively.

  According to a second aspect of the present invention, in the first aspect of the present invention, the discharge port includes a cold air guide portion. Thereby, it becomes possible to arbitrarily control the direction of the cool air discharged from the discharge port.

According to a third aspect of the present invention, in the second aspect of the present invention, the cold air guide portion is constituted by a rib provided on the partition member. As a result, it is possible to form the cold air guide part integrally with the discharge port, and since it is not necessary to increase the number of parts, it is possible to provide a structure that can suppress the variation in the wind direction due to the solid at a low cost. Moreover, since it can be set as the structure which does not accumulate the condensation which tends to adhere to the discharge outlet of a refrigerator, a quality refrigerator can be provided.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the storage chamber includes one or a plurality of storage cases for storing stored items, and the blower includes the storage case. The discharge port disposed in the cool air rectification unit is disposed above the upper end of the back surface of the cool air rectification unit, and is provided above the upper end of the back surface of the storage case. It is characterized by that. As a result, it is possible to guide the cool air discharged downward from the blower to the storage chamber, so that it is possible to blow cool air into the storage case from above the storage case, so that the stored item is more effectively stored. Can be cooled.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein when the blower is viewed from the front surface of the refrigerator main body, the central vertical line in the left-right direction of the storage room. It is characterized by being arranged on the opposite side to the rotation direction. Since the cool air discharged from the blower spreads radially while swirling in the rotation direction of the blower, the swirl component of the cool air has a downward speed on the center line of the storage chamber, so the cool air is blown into the case more effectively. be able to.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a front view of essential parts in Embodiment 1, and FIG. FIG. 5 is a plan sectional view of a main part in the first embodiment, and FIG. 6 is a perspective view of a storage chamber side partition member.

  1 to 6, a heat insulating box 101 which is a refrigerator main body of the refrigerator 100 includes an outer box 102 mainly using a 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. The first freezing chamber 107 as the second storage chamber is disposed below the second freezing chamber 105 and the ice making chamber 106, and the vegetable chamber 108 as the third storage chamber is disposed at the bottom. ing.

  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. doing. On the other hand, the other storage rooms have drawer doors, the second freezer compartment door 105a has a second freezer compartment case 105c, the icemaker door 106a has an icemaker case 106b, and the first freezer compartment. An upper freezer compartment case 107b and a lower freezer compartment case 107c are placed on the door 107a, and an upper vegetable compartment case 108b and a lower vegetable compartment case 108c are placed on the frame attached to the door, respectively.

  The refrigerated room 104 is set to a refrigerated temperature zone which is a temperature that does not freeze for refrigerated storage, and is usually set to 1 ° C. to 5 ° C., and the vegetable room 108 has a refrigerated temperature zone equivalent to the refrigerated room 104 or a slightly higher temperature setting. The vegetable temperature range is 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 in order to improve the frozen storage state, for example, −30 ° C. It may be set at a low temperature of -25 ° C.

  The second freezer compartment 105 is a first storage compartment having a freezing temperature range equivalent to that of 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 stores it in the ice making case 106b.

  The top surface portion of the heat insulating box 101 has a stepped recess shape toward the back of the refrigerator. A machine chamber 101a is formed in the stepped recess, and the compressor 109, moisture is formed in the machine chamber 101a. Houses high pressure side components of the refrigeration cycle such as a dryer (not shown) for removal. 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 as a decompressor, and a cooler 112, and a hydrocarbon-based refrigerant such as isobutane is enclosed as a refrigerant. Yes.

  The 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 this embodiment, the decompressor constituting the refrigeration cycle is a capillary. However, 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 storage chamber side partition member 111 a and a cooling chamber side partition member 111 b, and the cooling chamber side partition member 111 b includes a blower 113. The space between the storage chamber side partition member 111a and the cooling chamber side partition member 111b is an air duct 111c, and cool air forcedly sent out by the blower 113 is stored in the refrigerating chamber 104, the second freezing chamber 105, and the ice making chamber. 106, the first freezer compartment 107 and the vegetable compartment 108.

  The lower space of the cooler 112 is provided with a radiant heating means 114 made of glass tube for defrosting the frost and ice adhering to the cooler 112 and its surroundings at the time of cooling. A drain pan 115 for receiving the generated defrost water, a drain tube 116 penetrating from the deepest part to the outside of the cabinet are configured, and an evaporating dish 117 is configured outside of the downstream side.

Here, 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 with an angle with respect to the front surface of the refrigerator 100, and the cold air is arranged to blow up obliquely upward. Further, when viewed from the front of the first freezer compartment 107, the center of the blower 113 is located on the left side with respect to the central vertical line in the left-right direction of the first freezer compartment 107 and above the upper end of the rear surface of the upper freezer compartment case 107b. To position.

  The portion of the storage chamber side partitioning member 111a that faces the blower 113 constitutes a cold air rectifying unit 111d that protrudes toward the blower 113 side. The cool air rectification unit 111 d has a substantially truncated cone shape with the rotation axis of the blower 113 as the center. The front end of the cool air rectifying unit 111 d is configured by a plane 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 part except the cool air rectification part 111d of the storage room side partition member 111a is comprised by the substantially plane.

  In addition, the storage chamber side partition member 111 a includes a discharge port 111 e that sends cold air to the first freezing chamber 107. The discharge port 111e is below the center of the cold air rectifying unit 111d, 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 behind the lower freezer compartment case 107c. Located at two locations above the top of the surface. Further, a plurality of rows of horizontally long holes are provided in one place or in a plurality of stages. Further, at least a part of the discharge port 111e is formed across the cold air rectifying unit 111d.

  The upper center hole of the discharge port 111e has a wind direction rib 119 toward the storage chamber perpendicular to the side farther from the cold air rectifying unit 111d through the center of the first freezing chamber 107 when viewed from the front.

  Note that by changing the position, the number, and the shape of the discharge port 111e, it is possible to provide an efficient air path that matches the capacity and position of the blower 113, the structure of the storage chamber, the set temperature, and the like. In addition, the air direction can be controlled with higher accuracy by providing a cold air guide portion such as an air direction rib in any hole, not limited to the central hole.

  The upper discharge port 120 is provided between the partition wall 118 that partitions the refrigerator compartment 104 and the other storage chamber and the storage chamber-side partition member 111a, and cool air is sent to the second freezing chamber 105 and the ice making chamber 106. The partition wall 118 is provided with a damper 121, and the cold air passing through the damper 121 is further divided into a refrigerator compartment duct 122 and a vegetable compartment duct (not shown), and the refrigerator compartment 104 and the vegetable compartment are respectively discharged from the respective discharge ports. 108.

  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.

  About the refrigerator 100 of this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated 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), and further, the side surface and the rear surface of the heat insulating box body 101 which is the refrigerator main body, and the front opening of the heat insulating box body 101. The heat insulating box 101 is condensed and liquefied while preventing the condensation of the heat insulating box 101 via a refrigerant pipe (not shown) disposed in the tube, and 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 is evaporated. 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 is diverted from the blower 113 through the air duct 111c and using an air passage or 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, respectively. Cool to the target temperature range.

  Since the blower 113 is an axial fan that rotates clockwise, the discharged cool air flows conically so as to spread radially while turning clockwise. Therefore, by forming the cool air rectifying unit 111d in a shape that matches the flow of the discharged cool air, the cool air can be smoothly sent into the air duct 111c without generating vortices. In addition, on the discharge side of the axial fan, an air flow returning toward the center is generated, but the return air flow is suppressed by setting the upper surface diameter of the truncated cone of the cool air rectifying unit 111d to be substantially the same as the boss diameter of the fan. Therefore, the energy given to the cold air from the blower 113 can be utilized for the blow without waste.

Since the angle formed between the conical surface created by the discharged cool air and the rotational axis of the blower 113 varies depending on the flow rate and the number of rotations sent by the blower 113, the optimum design corresponding to the design flow rate can be achieved by changing the angle of the conical surface of the cool air rectifying unit 111d. It can be carried out. For example, when a blower 113 having a blade diameter of 90 to 110 mm is rotated around 1200 to 3000 rpm and an air volume of 0.5 to 1.0 m ³ / min is obtained, according to an experiment, the rotation shaft and the cool air rectifying unit 111d The angle formed with the conical surface 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. As in the present embodiment, in the 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 121, the work of the blower 113 becomes large. The part 111d plays a greater role.

  A part of the cool air spreading along the cool air rectifying unit 111d is discharged into the first freezer compartment 107 from the discharge port 111e provided in the cool air rectifying unit 111d. At this time, a force along the cool air rectifying unit 111d is applied to the cool air due to the Coanda effect. Accordingly, the cool air discharged from the discharge port provided in the cool air rectifying unit 111 d is smoothly discharged toward the front of the blower 113. Accordingly, it is possible to send the cool air to the front of the blower 113, which has conventionally been difficult to send the cool air directly.

  Since the discharge port 111e has a horizontally long shape, it is strongly influenced by the cool air rectifying unit 111d, and flows from the cool air toward the front of the blower 113 to the cool air having a large centrifugal component speed through the plane portion of the storage chamber side partition member 111a. , Change continuously. Therefore, it is possible to obtain a wide band of cold air extending from the front of the blower 113 to the wall of the storage room, and to suppress temperature unevenness in the storage room to a minimum.

  Further, by providing the discharge port 111e at a position close to the side surface of the inner box 103 or just above the lower freezer compartment case 107c, the cooler can be delivered to a wider range.

The discharge port 111e is provided below the cool air rectifying unit 111d. The cool air discharged from the blower 113 is discharged radially along the cool air rectifying unit 111d. Accordingly, cool air having a downward speed is discharged from the discharge port 111e provided below the cool air rectifying unit 111d. Since the upper hole of the discharge port 111e is disposed above the upper freezer compartment case 107b and the lower hole is disposed above the lower freezer compartment case 107c, the cold air discharged from the discharge port 111e is placed inside each case. The air is blown down. Therefore, since the inside of the case can be directly cooled, the stored item can be rapidly cooled.

  Furthermore, the upper center hole of the discharge port 111 e is located at the lower right of the blower 113 and is located at the center of the first freezer compartment 107. Since the blower 113 is a clockwise axial fan, the cold air spreads radially while turning clockwise. At this time, since the blower 113 is located on the left side with respect to the center of the first freezer compartment 107 when viewed from the front of the refrigerator 100, in the vicinity of the center of the first freezer compartment 107 on the right side of the blower 113. Cold air has a large downward speed. Accordingly, the cool air blown into the upper freezer compartment case 107b from the upper central hole of the discharge port 111e located at the center of the first freezer compartment 107 is discharged so as to blow down toward the center of the case, and the stored material is more effectively stored. Can be cooled.

  In addition, it is possible to intensively cool an arbitrary place by changing the position with respect to the first freezer compartment 107 while maintaining the relationship between the blower 113 and the upper center hole of the discharge port 111e. Further, in the present embodiment, since the cool air discharged from the upper center hole of the discharge port 111e is discharged toward the front of the blower 113, the upper center hole of the discharge port 111e is not necessarily the first freezer compartment 107. It is not necessary to pass through the center of the air flow, and it is also possible to arrange it on the right side so that it does not completely come out of the cold air rectifying plate.

  In addition, since the hole at the upper center of the discharge port 111e has the wind direction rib 119 toward the storage room perpendicular to the side farther from the cold air rectifying part 111d, the component of the cold air speed that spreads radially is also inside the storage chamber. Can be directed to. For this reason, the cool air which goes inside the upper stage freezer compartment case 107b can be increased, and a stored item can be cooled more rapidly. Since the wind direction rib 119 can be formed integrally with the storage chamber side partitioning member 111a without increasing the number of parts, a structure capable of suppressing variation in the wind direction due to the solid can be made at low cost.

  Since the wind direction rib 119 is provided only perpendicularly to the side farther from the cool air rectifying unit 111d, there is a concern that even if condensation occurs in the discharge port 111e due to a temperature difference, the condensation accumulates and grows as ice. Absent. Therefore, a quality refrigerator can be provided. If the wind direction rib 119 is configured horizontally, the dew condensation does not flow down, there is a possibility that the discharge port 111e is blocked by repeating the phenomenon of being cooled by the discharged cool air and becoming ice.

  In the present embodiment, the wind direction rib 119 is provided on the storage chamber side, but may be provided on the cooling chamber side. Further, the shape of the cool air guide part is not limited to the rib, and the discharge port 111e itself may protrude from the flat part of the partition member 111 toward the storage chamber, or the air path shape to the discharge port 111e may be streamlined. A similar effect can be obtained. Even at this time, it is possible to prevent the growth of ice by adopting a configuration that does not have a horizontal plane or a portion that is only partially lowered.

  As described above, in the present embodiment, at least a part of the discharge port 111e is disposed across the cold air rectification unit 111d, so that the cold air discharged from the blower 113 is rectified radially by the cold air rectification unit 111d. Then, it is discharged as it is without loss. Further, at this time, since a force acts on the cool air along the cool air rectifying unit 111d due to the Coanda effect, the cool air at the time of discharge is discharged toward the front of the blower 113, so that conventionally, the cool air can be directly sent. Since the cool air can be guided to the center of the storage chamber in front of the blower 113 that could not be made, the stored item can be effectively cooled.

Moreover, since the discharge port 111e has the cold air guide part comprised by the wind direction rib 119, cold air can be reliably sent to the center of the upper stage freezer compartment case 107b. At this time, the cold air guide portion can be molded integrally with the discharge port, and there is no need to increase the number of parts, so that it is possible to provide a structure that can suppress variation in the wind direction due to solids at low cost. Furthermore, since it can be set as the structure which does not accumulate the condensation which tends to adhere to the discharge outlet of a refrigerator, a quality refrigerator can be provided.

  The first freezer compartment 107 is provided with an upper freezer compartment case 107b and a lower freezer compartment case 107c for storing stored items. Since the discharge port 111e is provided below the center of the cool air rectifying unit 111d, the cool air discharged downward from the blower 113 can be guided to the first freezer compartment 107. Since it becomes possible to blow cold air into the freezer compartment case from above the freezer compartment case, the stored items can be cooled more effectively.

  In addition, the discharge port 111e is disposed at a position where the center of the first freezer compartment 107 passes, and the blower 113 which is a clockwise axial fan is disposed on the left side of the center of the first freezer compartment 107. Since the cold air discharged from the blower 113 spreads radially while turning clockwise, the discharge component 111e is provided in a place where the swirling component of the speed of the cold air is directed downward, and more effectively in the upper freezer compartment case 107b. Cold air can be blown downward.

(Embodiment 2)
FIG. 7 is a longitudinal sectional view of the refrigerator according to the second embodiment of the present invention. In addition, although description is abbreviate | omitted about the part which can apply the structure similar to Embodiment 1, and the same technical idea, as long as there is no malfunction, it can apply combining this Embodiment with the structure of Embodiment 1. Is possible.

  In FIG. 7, a refrigerator compartment duct 201 for conveying the cold air generated in the refrigerator compartment 110 to the refrigerator compartment 104 is provided on the back surface of the refrigerator compartment 104, and is partitioned from the refrigerator compartment 104 by the refrigerator compartment partition member 202. The The refrigerator compartment partition member 202 includes a front partition member 202a and a rear partition member 202b, and the refrigerator compartment duct 201 is partitioned into a front duct 201a and a rear duct 201b. In many cases, the front partition member 202a is made of a resin molded product such as polypropylene, and the back partition member 202b is made of a foamed resin molded product having high heat insulation.

  The rear partition member 202 b is provided with a refrigerating room blower 203, which assists the function of the blower 113 provided in the cooling room 110 and circulates cold air throughout the refrigerating room 104. Here, the refrigerator compartment fan 203 is an axial fan that rotates clockwise as viewed from the discharge surface.

  The portion of the front partition member 202a that faces the refrigerator compartment fan 203 constitutes the refrigerator compartment cold air rectifier 202c that protrudes toward the refrigerator compartment fan 203 side. The refrigerating room cool air rectification unit 202 c has a substantially truncated cone shape with the rotation axis of the refrigerating room blower 203 as the center. The tip of the cold room refrigeration unit 202c is configured by a surface parallel to the discharge surface of the cold room blower 203, and the diameter thereof is substantially the same as the boss diameter of the cold room blower 203. The upper part of the inner box 103 constituting the refrigerator compartment 104 has a convex portion on the inner side in accordance with the shape of the machine room 101a provided in the upper part of the refrigerator 100. Therefore, the upper end of the front partition member 202 a is curved in accordance with the shape of the inner box 103.

  In addition, the front partition member 202 a includes a refrigerator compartment discharge port 202 d that sends cold air to the refrigerator compartment 104. The refrigerator compartment discharge ports 202d are disposed in two locations, upper and lower, inside the refrigerator compartment cold air rectification unit 202c. The refrigerator compartment shelf 104c is arranged at an appropriate interval so as to sandwich the two refrigerator compartment discharge ports 202d therebetween.

  In addition, by changing the position, the number, and the shape of the refrigerating room discharge port 202d, it is possible to obtain an efficient air path that matches the capacity and position of the refrigerating room blower 203, the structure of the refrigerating room 104, the set temperature, and the like. Is possible.

  About the refrigerator in Embodiment 2 of this invention comprised as mentioned above, the operation | movement is demonstrated below.

  Heat exchange with the cooler 112 is performed, and the generated cold air is discharged by the blower 113 to the blower duct 111c. Part of it is blown up, passes through the damper 121, and flows into the back duct 201b. The cold air flowing into the back duct 201b is discharged to the front duct by the function of the refrigerator refrigerator 203. At this time, since the refrigerating room blower 203 is an axial fan that rotates clockwise, the discharged cool air flows conically so as to spread radially while turning clockwise. Therefore, by making the refrigerator compartment cool air rectification unit 202c in a shape that matches the flow of the discharged cool air, the cool air can be smoothly delivered into the front duct 201a without generating vortices. Also, on the discharge side of the axial fan, an air flow returning toward the center is generated, but by making the upper surface diameter of the truncated cone of the cold room rectification unit 202c substantially the same as the boss diameter of the fan, Since it can suppress, the energy given to cold air from the refrigerator compartment fan 203 can be utilized for ventilation without waste.

  A part of the cold air that has spread along the cold room rectification unit 202c is discharged into the cold room 104 from the cold room discharge port 202d provided in the cold room rectification unit 202c. At this time, a force along the refrigerating room cool air rectification unit 202c is acting on the cool air due to the Coanda effect. Accordingly, the cold air discharged from the discharge port provided in the cold room rectifier 202c is smoothly discharged toward the front of the cold room fan 203. Therefore, it is possible to send the cool air to the front of the refrigerator compartment fan 203, which has been difficult to send the cool air directly.

  Since the refrigerator compartment discharge port 202d is disposed above and below the refrigerator compartment fan 203, the cold air discharged radially has a velocity component in the vertical direction in the vicinity of the discharge port. At this time, since the refrigerator compartment shelf 104c is arranged above and below the refrigerator compartment discharge port 202d, the refrigerator compartment shelf 104c serves as a cold air guide, and guides the cold air discharged in the vertical direction in the front direction. Can be cooled. The refrigerator compartment shelf 104c is generally configured so that the user can arbitrarily change the height. However, in this case as well, the cold air is guided to the place where the stored item is placed according to the use situation. The same effect can be exhibited in any situation.

  In addition, the shape of the refrigerating chamber discharge port 202d is elongated vertically so that the shape extends from the inside to the outside of the refrigerating chamber cool air rectification unit 202c, so that the vertical velocity distribution of the cold air discharged from one discharge port is obtained. Becomes larger. This is because the cool air discharged from the portion close to the cold room rectifier 202c is directed to the front of the refrigerator fan 203 as described above, whereas the cold air discharged from the portion away from the cold chamber rectifier 202c is radial. This is because the velocity component in the vertical direction, that is, the velocity component in the vertical direction increases. Therefore, by making the shape of the refrigerating chamber discharge port 202d up and down, the discharge angle of the cool air in the vertical direction can be widened, and the refrigerating chamber can be evenly cooled.

  As described above, in the present embodiment, at least a part of the refrigerating room discharge port 202d is disposed inside the refrigerating room cool air rectification unit 202c, so that the cold air discharged from the refrigerating room blower 203 is stored in the refrigerating room. The air is rectified radially by the cold air rectification unit 202c and is discharged to the refrigerating chamber 104 without loss. Further, at this time, since the cold air has a force along the cold room rectification unit 202c due to the Coanda effect, the cold air when discharged is discharged toward the front of the cold room fan 203, so that conventionally, Since the cool air can be guided to the center of the refrigerating room in front of the refrigerating room blower 203, the stored product can be effectively cooled.

  Moreover, the refrigerator compartment shelf 104c plays the role of a cold air guide, and can reliably send cold air forward.

  As described above, the refrigerator according to the present invention can provide a refrigerator capable of rectifying the flow of the cold air blown by the blower and accurately delivering it to the required place without loss. It can also be applied to cooling equipment.

100 refrigerator 104 refrigerator compartment (storage room)
104c refrigerator compartment shelf (cold air guide)
107 First freezer room (storage room)
107c Lower-stage freezer compartment 110 Cooling chamber 111 Partition member 111d Cold air rectification unit 111e Discharge port 112 Cooler 113 Blower 119 Wind direction rib (cold air guide)
202c Refrigeration room cold air rectification part 202d Refrigeration room discharge port 202 Refrigeration room partition member 203 Refrigeration room blower

Claims (5)

  A storage chamber, 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 a space between the storage chamber and the blower In the refrigerator including a partition member, the partition member includes a discharge port that sends cold air to the storage chamber, and a cold air rectification unit that protrudes a portion facing the blower toward the blower, and at least one of the discharge ports. The refrigerator is characterized in that the portion is arranged in the cold air rectification unit.   The refrigerator according to claim 1, wherein the discharge port has a cold air guide portion.   The refrigerator according to claim 2, wherein the cold air guide portion is a rib provided on the partition member.   The storage chamber includes one or a plurality of storage cases for storing stored items, the blower is disposed above the upper end of at least one back surface of the storage case, and the discharge port disposed in the cold air rectifying unit is The refrigerator according to any one of claims 1 to 3, wherein the refrigerator is provided below the center of the cold air rectification unit and above the upper end of the back surface of the storage case.   The said air blower is arrange | positioned on the opposite side to the rotation direction with respect to the center perpendicular line of the left-right direction of the said storage room, when it sees from the said refrigerator main body front. The refrigerator described.