JP6145684B2 - 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 duct composed of a plurality of parts is formed on the discharge side of the blower to distribute cold air to each chamber. (For example, refer to Patent Document 1).

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

  FIG. 8 is a longitudinal sectional view of the periphery of a blower installed in a conventional refrigerator cooling chamber. In the figure, the partition member 61 divides the cooler chamber 57 and the freezing chamber 53, and includes a heat insulating material 61b, a front partition plate 61a, a damper device 65, a blower 64, and a rear partition plate 62. These are preliminarily assembled with each other and have a predetermined outer dimension. A refrigerating room air passage 72 is formed in the partition member 61 by a heat insulating material 61b, and the refrigerating room air passage 72 has a cold air diversion part (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 57 is sent by the blower 64 through the freezer compartment air passage 92 provided in the partition member 61 into the freezer compartment 53 from the freezer compartment cooling port 92a. It is done. On the other hand, the remaining cold air passes through the damper device 65 and is sent to the cooler room cooling air duct 72, and a part of the cold air is further diverted at the cool air branching portion, and the vegetable air passes through the vegetable room cooling air duct (not shown). The inside of the chamber (not shown) is cooled to a predetermined temperature.

  As described above, in the conventional refrigerator, by forming the air duct that communicates with the refrigerator compartment and the vegetable compartment by the heat insulating material 61b in the partition member 61, cold air is distributed to each compartment and each room is brought to an appropriate temperature. A refrigerator that can be cooled can be provided.

JP 2007-71496 A

  However, in the structure of the conventional refrigerator, in addition to the front partition plate 61a and the rear partition plate 62 that constitute the outer shell of the partition member 61, the air passage for the refrigerator compartment 72, the air passage for the vegetable compartment, and the heat insulation that constitutes the cold air distribution section. Since another part such as the material 61b is required, the chance that the cold air discharged from the blower 64 contacts the fitting part of the part 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 large material cost and assembly man-hours, but also increases the volume of the partition member 61, thereby reducing the internal volume and impairing user convenience.

  SUMMARY OF THE INVENTION The present invention solves the conventional problems, and inexpensively provides a refrigerator that can efficiently cool the air discharged from the blower to a plurality of storage rooms and cool it to the respective temperatures without impairing the user-friendliness. The purpose is to provide.

In order to solve the conventional problems, a refrigerator according to the present invention includes a plurality of storage rooms, a cooler that generates cool air for cooling the storage room, and the cool air generated by the cooler is forced to the store room. A blower that blows air, a distribution air passage that distributes the cool air discharged from the blower to each chamber, a front partition member positioned between the distribution air passage and the storage chamber, the distribution air passage, and the cooler In the refrigerator comprising a rear partition member positioned between the front and rear partition members , the distribution air passage includes a cold air guide portion configured by both the front partition member and the rear partition member. And a cold air rectifying unit comprising a surface protruding toward the inside of the distribution air passage on a surface facing the blower. 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 and the cold air can be reduced. The inside of the very smooth distribution air path which 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. Since the volume can be reduced and the storage space can be increased, the user-friendliness can be improved.

  The refrigerator of the present invention can provide inexpensively a refrigerator that can efficiently provide the cool air discharged from the blower to the plurality of storage rooms and cool it to the respective temperatures without impairing the user-friendliness.

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 Refrigerator body main part front enlarged view in Embodiment 1 of the present invention The principal part longitudinal cross-sectional enlarged view in Embodiment 1 of this invention The principal part longitudinal cross-sectional enlarged view in Embodiment 1 of this invention Partition member front view according to Embodiment 2 of the present invention Partition member front view according to Embodiment 3 of the present invention The main part longitudinal section enlarged view of the conventional refrigerator

The invention according to claim 1 is a plurality of storage chambers, a cooler that generates cold air that cools the storage chamber, a blower that forcibly blows the cold air generated by the cooler to the storage chamber, and A distribution air passage that distributes the cold air discharged from the blower to each chamber, a front partition member positioned between the distribution air passage and the storage chamber, and a space between the distribution air passage and the cooler. In the refrigerator including a rear partition member, the distribution air passage has a cold air guide portion configured by both the front partition member and the rear partition member , and the front partition member faces the blower. It has a cold air rectification part which consists of a surface which protruded toward the distribution air way inside on the surface. 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 and the cold air can be reduced. The inside of the very smooth distribution air path which 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. Since the volume can be reduced and the storage space can be increased, the user-friendliness can be improved.

  The invention according to claim 2 is the invention according to claim 1, wherein a downstream portion of the distribution air passage is branched into a plurality of air passages, and has a plurality of discharge ports communicating with the plurality of storage chambers. The cold air guide part has a first surface provided at a position facing the blower and a second surface adjacent to an 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 efficiently cool each chamber to a predetermined temperature without increasing the air loss. It becomes possible.

  The invention described in claim 3 is the invention described in claim 2, characterized in that the first surface and the second surface form an acute angle. Thereby, since it becomes possible to abolish the corner part etc. in which the discharge cold air of a blower tends to make a vortex, the refrigerator which can ventilate each room more efficiently can be provided.

  According to a fourth aspect of the present invention, in the second or third aspect of the invention, the first surface and the second surface are continuous surfaces. 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.

  The invention according to claim 5 is the invention according to claims 2 to 4, wherein the first surface and the second surface are formed on at least one of the front partition member and the rear partition member. It is characterized by comprising ribs. 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.

  The invention according to claim 6 is the invention according to claims 2 to 4, wherein the first surface and the second surface are formed on at least one of the front partition member and the rear partition member. It is characterized by comprising uneven parts. 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.

  According to a seventh aspect of the present invention, in the invention according to the sixth aspect, the uneven air flow is distributed 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. It is characterized by protruding inside the road. 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 further increased. it can.

The invention according to claim 8 is the invention according to any one of claims 2 to 7 , wherein the cold air rectification portion has a substantially circular shape, and the first surface is substantially concentric with the cold air rectification portion. It has the curve which becomes. 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.

The invention according to claim 9 is the invention according to claims 1 to 8 , wherein the refrigerator is provided with a damper capable of adjusting an opening area in an air passage for sending cold air to the plurality of storage rooms. To do. 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.

  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 an enlarged front view of the main part of the refrigerator body according to Embodiment 1, and FIG. BB sectional view and FIG. 5 are CC sectional views 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 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 filled in a space between the space 103 and the surroundings, 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 105b, the icemaker door 106a has an icemaker case 106b, and the first freezer compartment. The upper freezer compartment case 107b and the lower freezer compartment case 107c are placed on the door 107a, and the upper vegetable compartment case 108b and the lower freezer 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 slightly higher 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 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 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 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 each storage chamber.

  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. 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. Cold air rectification unit 120
The tip of a is formed 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 an upper left cool air guide portion 123, an upper right cool air guide portion 124, a lower left cool air guide portion 125, and a lower right cool air guide portion 126. Between the upper left cool air guide portion 123 and the upper right cool air guide portion 124, a refrigerator compartment air passage 122a, and between the upper right cool air guide portion 124 and the lower right cool air guide portion 126, the second freezer compartment air passage 122b, lower right. A first freezer compartment air passage 122c is provided between the cold air guide portion 126 and the lower left cold air guide portion 125, and an ice making chamber air passage 122d is provided between the lower left cold air guide portion 125 and the upper left cold air guide portion 123. In a state where the partition member 111 is assembled to the refrigerator 100, the refrigerating room air passage 122a communicates with the refrigerating room connection air passage 118a provided in the partition wall 118 that insulates the refrigerating compartment 104 and other storage compartments. The freezer compartment air passage 122 b and the ice compartment air passage 122 d communicate with the second freezer compartment outlet 127 and the icemaker outlet 128 configured between the partition wall 118 and the partition member 111, respectively. 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 the first outlet for freezer 120b and the outlet for vegetable compartment 129, the temperature of each chamber 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, a plurality of air passages 122a such as a refrigerator compartment air passage 122a 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 room. Alternatively, the refrigerating room air passage 122a may be divided into the air passage communicating with the refrigerating chamber 104 and the air passage communicating with the vegetable compartment 108 in the distribution air passage 122. Good.

  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 The cooler is blown into the upper freezer compartment case 107b and the lower freezer compartment case 107c at two positions above the upper end of the lower freezer compartment case 107c. Although 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, the first freezer compartment can be provided by providing one or more horizontal holes. It becomes easy to deliver cold air to the entire chamber 107 evenly.

  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. 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 downward. It has a substantially triangular shape that narrows.

  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 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. 123d.

  The front guide portion 123a includes an inner side surface 123e (first surface) located on the side facing the fan with the lower tip as a boundary, and an outer side surface 123f (second surface) facing the ice making chamber air passage 122d. Has a surface. The inner side surface 123e has a reference surface made up of a part of a substantially cylinder centering on the conical central axis of the cold air rectifying unit 120a, forms a side wall of the cold room air passage 122a that guides the cold air to the cold room 104, and has an outer side surface 123f. Extends in a substantially vertical direction and has a substantially flat surface formed substantially perpendicular to the reference surface of the front partition member 120 and forms a side wall of an ice making chamber front air passage 122b that guides cold air to the ice making chamber 106.

  The base of the guide protrusion 123c has a gentle R (radius 1 mm or more, preferably 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 harder the cold air can 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.

  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 (first surface) forming the lower wall of the second freezer compartment air passage 122b and the first refrigeration. It has a lower surface 126b (second surface) forming the upper right side wall of the room air passage 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 two surfaces (first surface and 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.

  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 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 cold air flows conically 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. Also, on the discharge side of the axial fan, an air flow returning toward the fan is generated at the center. However, by setting the upper surface diameter of the truncated cone of the cool air rectifying unit 120a to be substantially the same as the boss diameter of the fan, Since it can suppress, the energy given to cold air from the air blower 113 can be utilized for ventilation without waste.

Since the angle formed between the conical surface created by the discharged cool air and the rotation 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 120a. It can be carried out. For example, when the 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 the experiment, the rotation shaft and the cold air rectifying unit 120a 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. 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 cold air that has flowed between the upper left cold air guide portion 123 and the upper right cold air guide portion 124 through the ice making chamber air passage 122d and blown to the ice making chamber 106 from the ice making chamber discharge port 128 flows along the inner side surface 123e. Cold air that has passed through the air flow path 122a and is blown to the refrigerator compartment 104 and the vegetable compartment 108 from the refrigerator compartment connection air passage 118a and the vegetable compartment connection air passage 118b and flows between the upper right cool air guide portion 124 and the lower right cool air guide portion 126. Is blown from the second freezer discharge port 127 to the second freezer 105 along the upper surface 126a and the right side surface of the distribution air passage 122, and the remaining cold air is discharged from the first freezer freezer. It is blown from the mouth 120b to the first of the freezer compartment 107. In this way, the cool air discharged into the distribution air passage 122 is branched into the air passages to the respective chambers in the downstream portion, and a certain amount can be blown from the respective discharge ports to the respective storage chambers.

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 to suppress the air 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. Since it is possible to reduce the invalid space of the air passage existing between the flows, that is, the space that generates the turbulence of the cold air such as the vortex, the air blowing efficiency can be improved.

  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 in the rotational direction of the cold air as much as possible, and at any point on the inner side surface 123e, from the blower 113. Since the distance becomes substantially constant, the air volume hitting the surface becomes substantially uniform, and the pressure difference of the cold air depending on the place can be minimized, so that the air blowing loss of the cold air 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 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.

  Although the upper left cool air guide part 123 includes not only the front guide part 123a but also the rear guide part 123b, the rear guide part 123b flows along the surface of the front partition member 120 because the rear guide part 123b fits inside the front guide part 123a. The cool air can flow relatively smoothly without entering the upper left cool air guide portion 123. 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, so Disturbances can be kept small, and a reduction in blowing efficiency can be suppressed. Further, by forming the upper left cool air guide portion 123 by both the front partition member 120 and the rear partition member 121, even if the depth dimension of the distribution air passage 122 is large, the cool air is not increased without increasing the depth dimension of each component. Since the guide portion can be configured, 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 operating, and the upper left cool air guide portion 123 is frozen. There is a risk of doing. 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 freezing in the upper left cold air guide portion 123 is melted. It is possible to prevent a situation where the upper left cold air guide part 123 is deformed.

  In order to prevent the condensation from accumulating around the upper left cool air guide portion 123, it is desirable that the guide convex portion 123c, the guide rib 123d, and the lower front end portion of the rear guide portion 123b are inclined so as to promote water drainage.

Next, the action at the time of 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. As a result, the volume in which the warm air in the distribution air passage 122 can flow can be increased, and the amount of warm air flowing into the storage chamber from the distribution air passage 122 can be reduced. Therefore, the user's usability 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, since the cool air guide portion can be configured by only the front partition member 120 and the rear partition member 121, the material cost and the assembly man-hour are not increased, and the air passage cross-sectional area that lowers the air blowing efficiency is maintained as it is. Since the volume of the entire member 111 can be reduced and the storage space can be increased, the user-friendliness can be improved. Further, by forming the upper left cool air guide portion 123 by both the front partition member 120 and the rear partition member 121, even if the depth dimension of the distribution air passage 122 is large, the cool air is not increased without increasing the depth dimension of each component. Since the guide portion can be configured, 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. By having the surface and the second surface adjacent to the air passage that is not adjacent to the first surface, the cool air discharged from the blower 113 is distributed to a plurality of storage chambers, and a necessary amount of cold air is distributed and guided efficiently. Therefore, each chamber can be cooled to a predetermined temperature without increasing the air loss.

  In addition, since the first surface and the second surface have portions that are not parallel to each other, the number and shape of the air passages toward each storage chamber can be determined regardless of the shape of the partition member 111. Since it becomes possible to abolish a corner portion or the like in which the cool air discharged from the blower 113 easily creates a vortex, it is possible to provide a refrigerator that can blow air to each room more efficiently.

  The front guide portion 123a is constituted by a guide convex portion 123c formed on the front partition member 120, thereby reducing the internal volume of the upper left cold air guide portion 123 while reducing the material cost by making the cold air guide portion hollow. Since a useless flow of cold air that wraps around can be suppressed, a smoother air path can be provided.

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

  Further, the cool air rectification unit 120a has a substantially conical 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 unit 120a, so that the rotation of the cool air accompanying the rotation of the blower 113 is performed. The cool air guide portion can be configured according to the speed in the direction, and the cool air can be guided to the discharge port without stalling.

  The refrigerating room air passage 122a communicates with the refrigerating room connecting air passage 118a, and the damper 119 is provided with a damper 119 capable of adjusting the opening area for adjusting the flow rate of the cold air. 104 and the vegetable room 108 can be adjusted according to the situation, so that the temperature of the refrigeration room 104 and the vegetable room 108 can be controlled independently of other storage rooms cooled to the freezing temperature zone. Therefore, the temperature can be adjusted more precisely.

  The lower tip of the upper left cool 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, so that the blades of the blower 113 are removed during defrosting. When the warm air leaked from between rises up, it can enter not only the refrigerating chamber air passage 122a but also the ice making air passage 122d, so that more warm air can be stored in the distribution air passage 122, It is possible to reduce the amount of warm air leaking to the storage room.

(Embodiment 2)
FIG. 6 is a front view of a partition member 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. 6, the partition member 211 is configured to partition 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 in the same manner as the partitioning member 111 in FIG. 2. Is done. 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, 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 each storage chamber.

  The distribution air passage 122 branches the downstream portion into four air passages by the upper left cool air guide portion 223, the upper right cool air guide portion 124, the lower left cool air guide portion 125, 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 122a and a right side wall of the ice compartment air passage 122d. 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 surface of the front partition member 120, and the upper end side of the partition member 211 is curved toward the cold room air passage 122 a side. It has a rounded R shape.

  The lower right cool air guide portion 226 is constituted by a hollow rib provided in the front partition member 120, and an upper surface 226a (first surface) forming the lower side wall of the second freezer compartment air passage 122b and the first freezer compartment. It has a lower surface 226b (second surface) forming the upper right side wall of the air passage 122c. 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.

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

  The cool air discharged to the distribution air passage 122 by the blower 113 is diverted into the refrigerating room air passage 122a and the ice making air passage 122d by the upper left cold air guide portion 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. Moreover, since the upper end of the upper left cold air guide part has an R shape, the upper corner part of the air path 122a for the refrigerator compartment is eliminated, and a gentle flow path is formed. As a result, the cool air is smoothly guided to the refrigerator compartment connection air passage 118a, so that the air blowing efficiency can be improved.

  The thin plate rib of the upper left cold air guide portion 223 may be an arc shape having a convex shape on the left side, and smoother by following the flow of the cold air having the rotational component speed discharged from the blower 113 rotating clockwise. Can be fractionated.

  Further, the cool air discharged to the distribution air passage 122 is diverted to the second freezer compartment air passage 122b and the first freezer compartment air passage 122c by the lower right cool air guide portion 226. At this time, the front end portion 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 gradually widens, so that the cool air is always gradually diverted to one of the air paths. Since the direction is corrected, it is difficult to disturb the flow of cold air and the 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 blowing 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 gradually widens, so that the cool air is always diverted to one of the air paths. Since the direction is gradually corrected, it is difficult to disturb the flow of the cold air, and the blowing efficiency can be improved.

(Embodiment 3)
FIG. 7 is a front enlarged view of a main part of the refrigerator body according to the third embodiment of the present invention.

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

  In FIG. 7, the partition member 311 is configured to partition the cooling chamber 110 from the storage chamber composed of the second freezing chamber 105, the ice making chamber 106, and the first freezing chamber 107 in the same manner as the partitioning member 111 in FIG. 2. Is done. 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, 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 each storage chamber.

  The distribution air passage 122 branches the downstream portion into four air passages by an upper left cool air guide portion 123, an upper right cool air guide portion 124, a lower left cool air guide portion 125, and a lower right cool air guide portion 126. The space between the upper left cold air guide portion 123 and the upper right cold air guide portion 124 is the refrigerator compartment air passage 122a, and the space between the upper right cold air guide portion 124 and the lower right cold air guide portion 126 is the second freezer compartment air passage 122b. The first freezer compartment air passage 122c is between the cold air guide portion 126 and the lower left cold air guide portion 125, and the ice compartment air passage 122d is between the lower left cold air guide portion 125 and the upper left cold air guide portion 123.

  A twin damper 319a, a second freezer damper 319b, and an ice making room are respectively provided at the upper ends of the air path 122a, the second freezer air path 122b, and the ice making room air passage 122d. A damper 319c is provided.

  In addition, each damper may be fixed to either the front partition member 120 or the rear partition member 121, but no extra parts are required by fixing the damper so as to be sandwiched between the front partition member 120 and the rear partition member 121. Not only the air path resistance but also the number of parts and assembly man-hours can be minimized. Further, 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, and 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 319aa which is one opening of the twin damper 319a at the tip of the refrigerator compartment air passage 122a is a refrigerator compartment connection air passage 318a provided in the partition wall 118. The vegetable room opening 319ab, which is the other opening, communicates with the vegetable room connection air passage 318b provided in the partition wall 118. The second freezer compartment damper 319b and the icemaker damper 319c ahead of the second freezer compartment air passage 122b and the ice compartment air passage 122d are respectively configured between the partition wall 118 and the partition member 311. The second freezer compartment outlet 127 and the ice compartment outlet 128 communicate with each other.

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

  The cold air discharged to the distribution air passage 122 by the blower 113 is diverted by each cold air guide portion and flows to the air passage toward each storage chamber. The refrigerator air passage 122a, the second freezer air passage 122b, and the ice making air passage 122d have a twin damper 319a, a second freezer damper 319b, and an ice making damper 319c, respectively. By controlling, the amount of cold air flowing to the refrigerator compartment 104, the second freezer compartment 105, the ice making room 106, and the vegetable room 108 can be adjusted, and the temperature of each storage room can be adjusted independently. Fine temperature control 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 122c 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 122a, the second freezer compartment air passage 122b, and the ice making air passage 122d are respectively the twin damper 319a, the second freezer compartment damper 319b, and the ice making. Since the room damper 319c is provided, the amount of cold air flowing to the refrigerator compartment 104, the second freezer compartment 105, the ice making room 106, and the vegetable room 108 can be adjusted by controlling each damper, and the temperature of each storage room Can be adjusted independently, and fine temperature adjustment becomes possible.

  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.

100 refrigerator 104 refrigerator compartment (storage room)
105 Second freezer room (storage room)
106 Ice making room (storage room)
107 First freezer room (storage room)
108 Vegetable room (storage room)
110 Cooling chamber 111, 211, 311 Partition member 112 Cooler 113 Blower 119 Damper 120 Front partition member 120a Cold air rectifier 121 Rear partition member 122 Distribution air passage 123, 223 Upper left cool air guide portion 123c Guide convex portion 123d Guide ribs 123e, 223e Side (first side)
123f, 223f Outside surface (second surface)
124 Upper right cool air guide part 125 Left lower cool air guide part 126, 226 Right lower cool air guide part 126a, 226a Upper surface (first surface)
126b, 226b Lower surface (second surface)
319a Twin damper 319b Second freezer damper 319c Ice making damper

Claims (9)

A plurality of storage chambers, a cooler that generates cool air that cools 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 In a refrigerator comprising a distribution air passage to be distributed to, a front partition member located between the distribution air passage and the storage chamber, and a rear partition member located between the distribution air passage and the cooler, The distribution air passage has a cool air guide portion constituted by both the front partition member and the rear partition member, and the front partition member faces the air blower on the surface facing the blower. A refrigerator having a cold air rectification unit having a protruding surface.   A 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. The refrigerator according to claim 1, comprising a surface and a second surface adjacent to the air passage that is not adjacent to the first surface.   The refrigerator according to claim 2, wherein the first surface and the second surface form an acute angle.   The refrigerator according to claim 2 or 3, wherein the first surface and the second surface are configured as a continuous surface.   The said 1st surface and said 2nd surface were comprised by the rib formed in at least any one of the said front partition member or the said rear partition member, The any one of Claim 2 to 4 characterized by the above-mentioned. The refrigerator according to item.   The said 1st surface and said 2nd surface were comprised by the uneven | corrugated | grooved part formed in at least any one of the said front partition member or the said rear partition member, The any one of Claim 2 to 4 characterized by the above-mentioned. The refrigerator according to one item. The said uneven | corrugated | grooved part is protruded inside the said distribution air path about the front-back direction of a refrigerator main body with respect to the reference plane of the said front partition member or the said rear partition member formed integrally. refrigerator.   The refrigerator according to any one of claims 2 to 7, wherein the cold air rectification unit has a substantially circular shape, and the first surface has a curve that is substantially concentric with the cold air rectification unit.   The refrigerator according to any one of claims 1 to 8, wherein the refrigerator includes a damper capable of adjusting an opening area in an air passage that sends cold air to the plurality of storage rooms.