JP2011191028A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator improving supply accuracy of cold air 43 by facilitating assembly when assembling a refrigerating compartment duct 40 and reducing cost by sharing components and reducing the number of man-hours for management of sealing performance etc. <P>SOLUTION: The refrigerating compartment duct 40 is constituted by vertically interconnecting a first refrigerating compartment duct 41 having a lateral face discharge port 47 and a second refrigerating compartment duct 42 having a suction port 52, and the first refrigerating compartment duct 41 includes a refrigerating compartment temperature control operation part 48 controlling the temperature of a refrigerating compartment 26 and a freezing compartment temperature control operation part 49 controlling the temperature of a freezing compartment 27. Thus, this facilitates assembly of the refrigerating compartment duct 40, prevents errors generated in a mounting position when the first refrigerating compartment duct 41 and the second refrigerating compartment duct 42 are assembled, and improves supply accuracy of the cold air 43. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an energy saving structure of a heat insulating partition wall of a refrigerator.

  Conventionally, in this type of refrigerator, the refrigerator body is divided into a plurality of storage chambers by a heat insulating partition wall, and the front side of the heat insulating partition wall is a front wall made of a partition front plate, a partition cover, and a heat insulating material filled. A partition is provided (see, for example, Patent Document 1).

  FIG. 8 shows a partial cross section of a conventional refrigerator described in the aforementioned public relations. As shown in FIG. 8, the refrigerator 1 is configured to partition the refrigerator compartment 2 provided in the upper stage, the vegetable compartment 3 provided in the middle stage, the freezer compartment 4 provided in the lower stage, and the refrigerator compartment 2 and the vegetable compartment 3. A partition wall 5 made of an injection molded product, an air passage 6 for sending cold air from the freezer compartment 4 to the refrigerating compartment 2, a freezer compartment duct 7 provided on the rear side of the freezer compartment 4, and a rear side of the refrigerating compartment 2 A freezer compartment side duct 8, a freezer compartment side duct 7 and a freezer compartment side duct 8 connected in the vegetable compartment 3 area, and a freezer compartment 4 provided above the joint duct 9. An air volume adjusting device 10 is arranged to turn on and off the circulation of cold air from the refrigerator compartment 2 to the refrigerator compartment 2.

  Moreover, the suction inlet 11 opens above the vegetable compartment 3, and the lower end comprises the connection return duct 13 connected with the freezer compartment side return duct 12 in the area of the vegetable compartment 3. Reference numeral 14 denotes a fan installed inside the inner wall of the freezer compartment 4, and reference numeral 15 denotes a heat exchanger that cools the circulating air.

JP 2000-205733 A

  However, in the conventional configuration, the freezer compartment side duct 7, the refrigerator compartment side duct 8, and the connecting duct 9 of the refrigerator are constituted by three parts, and the air volume adjusting device 10 that turns on and off the cool air in the refrigerator compartment side duct 8 is joined. Since it is arranged in the duct 9, an error occurs in the mounting position of the air volume adjusting device 10 arranged in the connecting duct 9 due to a connection failure between the freezer compartment side duct 7, the refrigerator compartment side duct 8 and the connecting duct 9. Had problems.

  Moreover, there were many connection parts and had the subject that the structure with respect to a seal took a man-hour.

  The present invention solves the above-described conventional problems, and aims to improve the assembling property and strengthen the seal of the freezer compartment side duct 7, the refrigerator compartment side duct 8, and the connecting duct 9 of the refrigerator.

  In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a heat insulating box, a refrigeration room provided at an upper part of the heat insulating box, a freezing room provided at a lower part of the heat insulating box, a refrigeration room, and a freezing room. A heat insulating partition wall for partitioning, a refrigerating room duct that is provided on the back surface of the refrigerating room, supplying cold air from the bottom to the top, a heat insulating part that forms an inner wall of the refrigerating room duct and forms a cooling air passage, and a refrigerating room duct A plurality of side surface discharge ports provided on a side surface of the first refrigerating chamber, and a suction port provided in a part of the refrigerating chamber duct below the side surface discharge port, wherein the refrigerating chamber duct includes a first refrigerating chamber duct having a side surface discharge port; A second refrigeration room duct provided with a suction port is connected to the upper and lower sides, and the first refrigeration room duct has a refrigeration room temperature adjustment operation part for adjusting the temperature of the refrigeration room and a freezing room temperature adjustment operation part for adjusting the freezer temperature. Is provided.

  This eliminates the occurrence of errors in the mounting position when the first refrigerator compartment duct and the second refrigerator compartment duct are assembled by attaching the refrigeration room temperature adjustment operation section and the freezing room temperature adjustment operation section to the first refrigerator compartment duct. In order to improve the supply accuracy of cold air.

  In addition, man-hours such as management of sealing performance are reduced by facilitating assembly.

  The refrigerator of the present invention can facilitate the assembly of the refrigerator compartment duct, improve the accuracy of supplying cold air, reduce the number of assembly steps, and reduce the cost.

Sectional drawing of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 2 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 3 of this invention Partial sectional view of a conventional refrigerator

  1st invention is a heat insulation box, the refrigerator compartment provided in the upper part of this heat insulation box, the freezer compartment provided in the lower part of the said heat insulation box, the heat insulation partition wall which partitions off the said refrigerator compartment and a freezer compartment, A refrigeration chamber duct that is provided on the back surface of the refrigeration chamber and supplies cold air from the bottom to the top, a heat insulating portion that forms an inner wall of the refrigeration chamber duct and that forms a cold air passage, and a side surface of the refrigeration chamber duct A plurality of side surface discharge ports and a suction port provided in a part of the refrigerating chamber duct below the side surface discharge port, wherein the refrigerating chamber duct includes a first refrigerating chamber duct provided with the side surface discharge port; The second refrigerator compartment duct provided with the suction port is connected to the upper and lower sides, and the first refrigerator compartment duct includes a refrigerator room temperature adjusting operation unit for adjusting the temperature of the refrigerator compartment and a refrigerator room temperature controller for adjusting the temperature of the refrigerator compartment. By providing the operation unit, the first refrigerator compartment duct and the second refrigerator compartment duct are assembled. Causing an error in the mounting position when Teru will be is eliminated, it is possible to improve the supply accuracy of the cool air.

  In addition, the refrigerated room temperature adjusting operation unit and the freezing room temperature adjusting operation unit are integrated with the first refrigeration chamber duct, so that the number of assembling steps can be reduced and the cost can be reduced.

  In the second aspect of the invention, in particular, the heat insulating part of the first aspect of the invention is configured such that the inner wall of the first refrigerator compartment duct and the second refrigerator compartment duct are integrally formed, and the second refrigerator compartment duct is connected to the first refrigerator compartment duct. Thus, the provision of the suction passage that communicates with the suction port outside the heat insulating portion prevents contact between the cold air flowing into the refrigerator compartment and the cold air flowing into the suction passage. Temperature rise can be prevented. In addition, the configuration of the second duct is not affected by the cold air passage of the heat insulating portion, and can be simplified.

  According to a third aspect of the invention, in particular, in the first refrigerator compartment duct of the first or second aspect, a cold air passage is provided in a Y shape, an upper discharge port is provided at an upper end thereof, and a plurality of side discharge ports are provided on a side surface. By providing the illumination means between the upper discharge port and the branched portion of the Y-shaped cold air passage, it is not necessary to provide an irregular protruding portion in the refrigerator compartment by providing the illumination means. The stored air can be uniformly cooled by rectifying the circulation of the cold air in the refrigerator compartment.

  In the fourth invention, in particular, the heat insulating portion of any one of the first to third inventions constitutes a first heat insulating portion constituting an inner wall of the first refrigerator compartment duct and an inner wall of the second refrigerator compartment duct. By dividing | segmenting into a 2nd heat insulation part, each of a 1st refrigerator compartment duct and a 2nd refrigerator compartment duct will be comprised as an independent separate component, and it can enable attachment or detachment to each.

  In the fifth invention, in particular, the second refrigerator compartment duct according to any one of the first to fourth inventions is configured such that the second heat insulating portion is inserted into the heat insulating member of the heat insulating partition wall from above the heat insulating partition wall, With respect to the 1 refrigerator compartment duct, it is pressed against the back of the refrigerator compartment and sealed and detachable, so that the second refrigerator compartment duct is attached and detached regardless of the attachment and detachment of the first duct. Maintenance can be facilitated.

In the sixth aspect of the invention, in particular, in the first refrigerator compartment duct of any one of the first to fifth inventions, the first heat insulating part is inserted into the second heat insulating part from above the second refrigerator compartment duct, By enabling the attachment / detachment, the first refrigerator compartment duct is attached / detached regardless of the attachment / detachment of the second duct, and assembly and maintenance can be facilitated.

  In the seventh aspect of the invention, in particular, the plurality of side discharge ports provided in the side portion of the refrigerator compartment duct according to any one of the first to sixth inventions are provided in a plurality of shelves provided in a plurality of upper and lower stages in the refrigerator compartment. Since the cold air is blown out along the ceiling of the board, the cold air expands along the ceiling of the shelf board, and the entire stored items on the lower shelf board can be cooled without exception.

  In the eighth invention, in particular, the second refrigerator compartment duct according to any one of the first to seventh inventions is provided on the heat insulating partition wall by removing it from the back surface of the refrigerator compartment so that the blower can be easily attached and detached. By doing so, the fan provided in the heat insulation partition wall will be exposed by removing the 2nd refrigerator compartment duct, and an inspection and replacement | exchange of a fan can be performed easily.

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

(Embodiment 1)
FIG. 1 is a cross-sectional view showing the configuration of the front of the refrigerator in the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part of the side surface of the refrigerator of the same embodiment, and FIG. It is principal part sectional drawing of the side surface of a refrigerator.

  1, 2, and 3, reference numeral 20 denotes a refrigerator body, in which a foam heat insulating material 23 is filled between a resin inner box 21 and a steel plate outer box 22 to constitute a heat insulating box 24. . The foam heat insulating material 23 is comprised with the urethane foam heat insulating material. 25 is a heat insulation partition wall and partitions the heat insulation box 24 up and down. 26 is a refrigerator compartment, 27 is a freezer compartment. A hinge-type refrigerator compartment door 28 is configured at the front opening of the refrigerator compartment 26, and a hinge-type or drawer-type refrigerator compartment door 29 is configured at the front opening of the freezer compartment 27.

  Reference numeral 30 denotes a cooler chamber configured at the rear of the freezer compartment 27, and the freezer compartment 27 and the cooler chamber 30 are partitioned by a cooler chamber cover 31. Reference numeral 32 denotes a cooler, and a defrosting device 33 is disposed below the cooler. The defrosting device 33 includes a defrosting heater and a defrosting water tray. A blower 34 uses a DC box-type axial flow fan. The blower 34 is press-fitted and supported by the heat insulating portion 36 in the heat insulating partition wall 25.

  For this reason, the blower 34 has a configuration in which the main part is accommodated in the press-fit portion 35 of the heat insulating partition wall 25. The heat insulating member 36 is made of polystyrene resin (foamed polystyrene). 37 is a resin part which comprises the exterior of the heat insulation partition wall 25, 37a is a lower board, 37b is an upper board. The lower plate 37 a constitutes the ceiling of the freezer compartment 27, and the upper plate 37 b constitutes the bottom of the refrigerator compartment 26.

  Reference numeral 38 denotes a resinous decorative cover formed on the back surface of the refrigerator compartment 26, and a heat insulating portion 39 formed of a polystyrene resin (styrene foam) is formed inside the decorative cover 38. The decorative cover 38 and the heat insulating portion 39 constitute a refrigerator compartment duct 40. In addition, the decorative cover 38 is divided into two parts, upper and lower, and constitutes a first refrigerator compartment duct 41 at the upper part and a second refrigerator compartment duct 42 at the lower part.

  The heat insulating part 39 constitutes a cold air passage 44 between which the cool air 43 discharged from the blower 34 is guided upward. The cold air passage 44 forms a Y-shaped passage shape on the back surface of the refrigerating chamber 26, and the cold air 43 is branched and supplied above. A throttle 45 is provided below the cold air passage 44 and is configured to determine the distribution of the cold air 43 to the refrigerator compartment 26 and the freezer compartment 27.

  The refrigerator compartment duct 40 is provided in a shape protruding from the rear surface of the refrigerator compartment 26, and the inner wall of the refrigerator compartment 26 from the plurality of upper discharge ports 46 above the decorative cover 38 and the plurality of side surface discharge ports 47 on the side portion. The cold air 43 is blown out toward the ceiling or side of the vehicle.

  The throttle 45, the upper discharge port 46, and the side discharge port 47 of the cold air passage 44 are arranged in the first refrigerator compartment duct 41. In addition, a refrigeration room temperature adjustment operation unit 48 that adjusts the temperature of the refrigeration room 26 by changing the passage area of the throttle unit 45 is also provided in the first refrigeration room duct 41. The refrigeration room temperature adjustment operation unit 48 is a manual damper or mechanical type. It is composed of an electric damper.

  In addition, a freezing room temperature adjustment operation unit 49 for adjusting the temperature of the freezing room 27 is also provided in the first refrigerating room duct 41, and this freezing room temperature operation unit 49 is constituted by a resistor such as a volume. A part of the heat insulating portion 39 that is independent of the cold air passage 44 is used for mounting, and the adjusting knob 50 is exposed in the refrigerator compartment 26. The temperature detection unit 51 of the freezing room temperature adjustment operation unit 49 is configured such that, for example, a part of the cool air 43 supplied by the blower 34 at the position where the cool air 43 passes in the freezer compartment 27 is transferred from the cooler chamber 30 to the cooler chamber cover 31. Since it flows into the freezer compartment 27 through the opening portion, it is installed in the vicinity thereof.

  The refrigerator compartment duct 40 is provided with a suction port 52 below the side discharge port 47, and the suction port 52 is provided below and cool air 43 that has cooled the refrigerator compartment 26 through a suction passage 53 that penetrates the heat insulating partition wall 25. Is returned to the cooler 32. The suction port 52 is provided in the second refrigerating chamber duct 42, is isolated from the cold air passage 44, and is configured using a decorative cover 38 outside the heat insulating portion 39 of the refrigerating chamber duct 40.

  The refrigerating room duct 40 and the heat insulating partition wall 25 are connected to each other in such a manner that the heat insulating part 39 of the refrigerating room duct 40 is inserted into the opening of the press fitting part 35 in which the blower 34 is accommodated in an in-row configuration. By this mounting, the press-fit portion 35 is also configured as a part of the cold air passage 44. A sealing material (not shown) is provided at the contact portion of the in-row configuration to prevent the cool air 43 from leaking.

  54 is a plurality of shelf boards provided at the top and bottom of the refrigerator compartment 26, 55 is a refrigerator compartment case (vegetable case, etc.) provided below the lowest shelf board 54 of the plurality of shelf boards 45 in the refrigerator compartment 26. ). Reference numeral 56 denotes a plurality of cases provided in the freezer compartment 27. The plurality of side surface discharge ports 47 of the first refrigerator compartment duct 41 blows out the cold air 43 along the ceilings of the plurality of shelf boards 54 provided in the upper and lower stages.

  Reference numeral 57 denotes illumination means provided in the first refrigerator compartment duct 41. The illumination means 57 is disposed in the recess 58 of the heat insulating portion 39 when provided in the first refrigerator compartment duct 41, and cool air flowing into the refrigerator compartment duct 40 is provided. 43 so as not to contact.

  The dent 58 is provided between the upper part of the Y-shaped cold air passage 44 and the upper discharge port 46, and through the opening 59 of the decorative cover 38, by the lighting means 57, Lighting is performed. The illumination means 57 is composed of a plurality of semiconductor light emitting elements (LEDs) 60, and each of the semiconductor light emitting elements 60 is arranged along a plurality of shelf plates 54 in the refrigerator compartment 26, and illumination between the shelves 54. Like to do.

  The arrangement of the plurality of shelves 54 in this case is a standard arrangement, and for example, an arrangement at the time of shipment of the refrigerator main body 20 is assumed. Reference numeral 61 denotes an illumination cover of the illumination means 57 made of a transparent or translucent resin material provided so as to cover the opening 59 of the decorative cover 38. By the illumination cover 61, the light of the semiconductor light emitting device 60 having high directivity is provided. A wide range of illumination between the shelves 54 is performed.

  The illumination cover 61 is configured to refract the light of the semiconductor light emitting element 60 having strong directivity so that the degree of diffusion of the light of the semiconductor light emitting element 60 is diffused to the irradiation angle between the shelves 54. Further, the illumination cover 61 prevents the cool air 43 circulating in the refrigerator compartment 26 from entering the recess 58. The wiring of the illumination means 57 is connected through the inside of the heat insulating portion 39 of the refrigerator compartment duct 40. (Not shown).

  62 is a machine room arranged at the lower rear of the refrigerator body 20 and is provided with a compressor 63.

  Reference numeral 64 denotes a gasket attached to the outer peripheral portions of the inner surfaces of the refrigerator compartment door 28 and the freezer compartment door 29, and the gasket 64 is pressed against the heat insulating box 24 for sealing.

  A projecting portion 65 projects from the inner surface of the freezer compartment door 29 of the freezer compartment 27 and is provided over the entire peripheral wall of the inner surface of the freezer compartment door 29. The projecting portion 65 and the inner box 21 or the heat insulating partition wall 25 constitute a substantially horizontal space 66, and the creeping distance of the space 66 is increased to reduce the amount of cold air 43 that can enter the space 66. I have to. Similarly, a protruding portion 67 protruding from the inner surface of the refrigerator compartment door 28 of the refrigerator compartment 26 is provided, and a space 68 is formed by the inner box 21 or the heat insulating partition wall 25, and the creeping distance of the space 68 is increased to increase the cold air 43. The amount of intrusion into the space 68 is reduced.

  The operation | movement and effect | action are demonstrated in the refrigerator comprised as mentioned above.

  The cool air 43 generated by cooling by the cooler 32 is distributed and supplied to the refrigerator compartment 26 and the freezer compartment 27 by the blower 34. Cold air 43 is supplied to the refrigerator compartment 26 from the upper outlet 46 and the side outlet 47 of the first refrigerator compartment duct 41 so that the inside of the refrigerator 26 is circulated uniformly. A part of the cool air 43 supplied by the blower 34 is circulated in the freezer compartment 27 from the cooler compartment 30 through the opening portion of the cooler compartment cover 31. The discharged cold air 43 cools the refrigerator compartment 26 and the freezer compartment 27 and then passes through the intake passage 53 from the inlet 52 provided below the side outlet 47 of the second refrigerator compartment duct 42 in the refrigerator compartment 26. It returns to the cooler 32. Further, in the freezer compartment 27, the cooler compartment cover 31 is returned to the cooler 32 from the lower opening.

  The air volume control of the cold air 43 supplied to the refrigerator compartment 26 and the freezer compartment 27 is performed by adjusting the passage area of the throttle portion 45 provided at the lower portion of the cold air passage 44 on the first refrigerator compartment duct 41 side by the refrigerator room temperature adjusting operation portion 48. The refrigeration room temperature adjusting operation unit 48 instructs the ratio of the cool air 43 supplied from the cooler chamber 30 via the fan 34 to the refrigerating chamber duct 40. The refrigerated room temperature adjustment operation unit 48 is configured by a manual damper or a mechanical or electric damper. The temperature adjustment of the freezer compartment 27 is instructed by the adjustment knob 50 of the freezing room temperature adjusting operation unit 49 provided in the first refrigerator compartment duct 41 with respect to the air volume ratio, and the temperature detection unit 51 in the freezer compartment 27 is adjusted. Based on the value, the compressor 54 is turned on or off or the output is reduced.

  The illumination means 57 is provided in the recessed portion 58 of the heat insulating portion 39 so that it does not come into contact with the cold air 43 in the cold air passage 44 and does not cause heat exchange or disturbance of the flow of the cold air 43. Moreover, it arrange | positions above the branch part of the Y-shaped cold air | gas channel | path 44, and it integrates with the 1st refrigerator compartment duct 41 using the part which does not block the cold air | gas channel | path 44, and enables attachment or detachment. The illumination means 57 is composed of several semiconductor light emitting elements 60, each of the semiconductor light emitting elements 60 is arranged so as to improve the illumination between the shelves 54, and the illumination cover 61 diffuses light, A wide range of lighting is provided.

  The heat insulating partition wall 25 that partitions the inner box 21 up and down presses and supports the blower 34 in the insertion portion provided at the rear. The blower 34 is an axial fan, and a cushioning material is wound around the outer periphery of the blower 34 so as to close a gap with the insertion portion. The blower 34 that is press-fitted and supported can remove the blower 34 upward from the heat insulating partition wall 25, thereby enabling services such as failure of the blower 34.

  Further, in the assembly process of the heat insulating box 24, the heat insulating partition wall 25 is temporarily fixed at a predetermined position of the inner box 21 with the blower 34 attached, and the foam heat insulating material 23 (foam urethane) is provided between the outer box 22 and the inner box 21. ) And leaking the foam heat insulating material 23 from the portion of the inner box 21 corresponding to the side of the heat insulating partition wall 25, the heat insulating partition wall 25 is fixed at a predetermined position. Thus, the refrigerator main body 20 shown in FIG. 1 and FIG. 2 is completed through each assembly process.

  In addition, by dividing the decorative cover 38 of the refrigerator compartment duct 40 into the first refrigerator compartment duct 41 and the second refrigerator compartment duct 42, the refrigerator compartments of various models due to the difference in the size of the refrigerator body 20 and the capacity of the refrigerator compartment. A part of the duct 40 is shared to reduce costs. In particular, the first refrigerator compartment duct 41 is configured by changing the size and the upper outlet 46 and the side outlet 47 depending on each model, but the second refrigerator compartment duct 42 is made common throughout all the refrigerator main bodies 20. Yes.

  Further, by attaching the refrigeration room temperature adjustment operation unit 48 and the freezing room temperature adjustment operation unit 49 to the first refrigeration room duct 41, an error occurs in the attachment position when the first refrigeration room duct 41 and the second refrigeration room duct 42 are assembled. Thus, the supply accuracy of the cold air 43 is improved.

  In addition, the heat insulating part 39 is configured by integrally forming the inner walls of the first refrigerator compartment duct 41 and the second refrigerator compartment duct 42, and connecting the second refrigerator compartment duct 42 to the first refrigerator compartment duct 41, thereby providing the heat insulating part 39. A suction port 52 is provided on the outside of the cooling chamber to prevent contact between the cool air 43 flowing into the refrigerating chamber 26 and the cool air 43 flowing into the suction passage 53, and to prevent an increase in the temperature of the cool air 43 flowing into the refrigerating chamber 26. I have to.

  Further, the plurality of side discharge ports 47 provided on the side of the first refrigerator compartment duct 41 blow out the cold air 43 along the ceilings of the plurality of shelf boards 54 provided in the upper and lower stages in the refrigerator compartment 26. Thus, the cool air 43 expands between the shelf boards 54 along the ceiling of the shelf board 54.

  As described above, in the present embodiment, the refrigerator compartment duct 40 is configured by vertically connecting the first refrigerator compartment duct 41 provided with the side discharge port 47 and the second refrigerator compartment duct 42 provided with the suction port 52. Since the first refrigerator compartment duct 41 is provided with the refrigerator room temperature adjustment operation section 48 for adjusting the temperature of the refrigerator compartment 26 and the refrigerator room temperature adjustment operation section 49 for adjusting the temperature of the freezer compartment 27, the first refrigerator compartment duct 41 is provided. As a result, an error in the mounting position when assembling the second refrigerator compartment duct 42 is eliminated, and the supply accuracy of the cold air 43 can be improved.

  In the present embodiment, since the refrigerated room temperature adjustment operation unit 48 and the freezing room temperature adjustment operation unit 49 are integrated with the first refrigeration room duct 41, the number of assembling steps can be reduced and the cost can be reduced.

  In the present embodiment, since the decorative cover 38 of the refrigerator compartment duct 40 is divided into the first refrigerator compartment duct 41 and the second refrigerator compartment duct 42, it depends on the size of the refrigerator body 20 and the capacity of the refrigerator compartment. Cost reduction can be achieved by sharing a part of the refrigerator compartment duct 40 of each model.

  Moreover, in this Embodiment, since the 2nd refrigerator compartment duct 42 is made common throughout all the refrigerator main bodies 20, the assembly and maintenance of the air blower 34 can be made common, and the efficiency of work can be improved.

  Further, in the present embodiment, the heat insulating portion 39 integrally forms the inner walls of the first refrigerator compartment duct 41 and the second refrigerator compartment duct 42, and the suction port 52 is provided outside the heat insulating portion 39 of the second refrigerator compartment duct 42. Since the suction passage 53 communicating with the cooling passage 26 is provided, contact between the cold air 43 flowing into the refrigerating chamber 26 and the cold air 43 flowing into the suction passage 53 is prevented, and the temperature rise of the cold air 43 flowing into the refrigerating chamber 26 is prevented. Can be prevented.

  Further, in the present embodiment, the configuration of the second refrigerator compartment duct 42 is not affected by the cold air passage 44 of the heat insulating portion 39 and can be integrated with the material of the decorative cover 38 to have a simple configuration. it can.

  Further, in the present embodiment, the plurality of side discharge ports 47 provided on the side portion of the first refrigerator compartment duct 41 allow the cold air 43 to flow along the ceilings of the plurality of shelf boards 54 provided in the refrigerator compartment 26. Since it blows out, the cold air 43 will expand along the ceiling of the shelf board 54, and the whole stored item on the lower shelf board 54 can be cooled completely.

  Moreover, in this Embodiment, the refrigerator compartment duct 40 supplies the cold air 43 to the same direction, unifies the blowing state of the cold air 43, and makes uniform the blowing of the cold air 43, so that the inside of the refrigerator compartment 26 The temperature distribution can be made uniform.

  Further, in the present embodiment, the refrigerator compartment duct 40 causes the cold air 43 to flow from the plurality of side discharge ports 47 provided on the side protruding from the back of the refrigerator compartment 26 toward the side of the inner wall of the refrigerator compartment 26. Since the supply is made, the cool air 43 moves along the inner wall of the refrigerator compartment 26 and forms a flow that wraps the stored items, so that the stored items can be cooled uniformly.

  Further, in the present embodiment, the refrigerator compartment duct 40 is provided with a cold air passage 44 in a Y shape, an upper discharge port 46 at the upper end thereof, and a branch between the upper discharge port 46 and the Y-shaped cold air passage 44. Since the illuminating means 57 is provided between the portions, the illuminating means 57 eliminates the need to provide an irregular protruding portion in the refrigerator compartment 26, and rectifies and stores the circulation of the cold air in the refrigerator compartment 26. The object can be cooled uniformly.

  Further, in the present embodiment, the lighting unit 57 that illuminates the inside of the refrigerator compartment 26 is provided, and the lighting unit 57 includes the plurality of semiconductor light emitting elements 60 arranged along the plurality of shelf plates 54. The stored items placed on the plurality of shelves 54 are irradiated with light from each of the semiconductor light emitting elements 60, so that the stored items can be easily recognized and taken out.

  Further, in the present embodiment, the illumination means 57 can adjust the degree of light diffusion by the illumination cover 61 and can mainly illuminate between the shelves 54 with the light of the highly directional semiconductor light emitting element 60, It is possible to easily distinguish the stored items by preventing the light from being excessively dispersed.

  In the present embodiment, and in this embodiment, the illumination means 57 diffuses the light by the illumination cover 61, so that even the light of the semiconductor light emitting element 51 with strong directivity is dispersed and an afterimage to the eyes. Can be prevented from remaining.

  Moreover, in this Embodiment, since the illumination means 57 was integrated with the 1st refrigerator compartment duct 41, the assembly and maintenance of the 1st refrigerator compartment duct 41 can be performed easily.

  In the present embodiment, since the substantially horizontal space 66 is configured by the protruding portion 65 protruding from the inner surface of the freezer compartment door 29 of the freezer compartment 27 and the inner box 21, the cold air is adjusted by adjusting the creepage distance of this space 566. The amount of intrusion into the space 66 of 43 can be reduced, and an increase in power consumption can be prevented.

  Further, in the present embodiment, by forming the substantially horizontal space 68 with the protruding portion 67 and the inner box 21 protruding from the inner surface of the refrigerator compartment door 28 of the refrigerator compartment 26, the creepage distance of this space 59 can be adjusted. The amount of the cool air 43 entering the space 68 can be reduced, and an increase in power consumption can be prevented.

  Moreover, in this Embodiment, since the heat insulation partition wall 25 press-fits and supports the air blower 34 in the insertion part provided in the back, it is independent from the heat insulation partition wall 25 by removing the refrigerator compartment duct 40. By removing the blower 34 upward, services such as failure of the blower 34 can be easily made possible.

  Note that the constricted portion 45 of the cool air passage 44 can be configured as a fixed opening in order to reduce the cost.

  In addition, it is also possible to adjust while detecting the temperature in the refrigerator compartment 26 by adjusting the air volume of the cold air 43 from the upper discharge port 46 of the refrigerator compartment duct 40 with a mechanical damper or the like.

(Embodiment 2)
FIG. 4 is a cross-sectional view of a main part showing the configuration of the refrigerator in the second embodiment of the present invention.

  In FIG. 4, the heat insulation part 39 which comprises the inner wall of the refrigerator compartment duct 40 is the 1st heat insulation part 69 which comprises the inner wall of the 1st refrigerator compartment duct 41, and the 2nd heat insulation which comprises the inner wall of the 2nd refrigerator compartment duct 42. It can be divided into parts 70 for assembly. The second refrigerating chamber duct 42 and the heat insulating partition wall 25 are connected by inserting the second heat insulating portion 70 of the second refrigerating chamber duct 42 into the opening of the press-fit portion 35 in which the blower 34 is accommodated in an in-row configuration. I am doing so. By this mounting, the press-fit portion 35 is also configured as a part of the cold air passage 44. A sealing material (not shown) is provided at the contact portion of the in-row configuration to prevent the cool air 43 from leaking.

  In addition, the first cold room duct 41 and the second cold room duct 42 are coupled by the insulative structure of the first heat insulating part 69 of the first cold room duct 41 and the second heat insulating part 70 of the second cold room duct 42. It is designed to be inserted in the opening. With this attachment, the cool air passage 44 is integrated. A sealing material (not shown) is provided at the contact portion of the in-row configuration to prevent the cool air 43 from leaking.

  The operation | movement and effect | action are demonstrated in the refrigerator comprised as mentioned above.

  The first heat insulating part 69 for the first refrigerator compartment duct 41 and the second heat insulating part 70 for the second refrigerator compartment duct 42 are provided, and they are configured as independent individual parts, and can be attached and detached respectively. I have to. In addition, by dividing the first heat insulating portion 69 and the second heat insulating portion 70, a part of the refrigerator compartment duct 40 of each model due to the size difference of the refrigerator body 20 and the capacity difference of the refrigerator compartment is shared. ing.

  In particular, the first refrigerator compartment duct 41 is configured by changing the size and the upper outlet 46 and the side outlet 47 depending on each model, but the second refrigerator compartment duct 42 is made common throughout all the refrigerator main bodies 20. Yes.

  As described above, in the present embodiment, the first heat insulating portion 69 and the second heat insulating portion 70 that constitute the respective inner walls according to the division into the first cold room duct 41 and the second cold room duct 42 are also provided. Therefore, it is possible to reduce the cost by sharing a part of the refrigerator compartment duct 40 of each model due to the size difference of the refrigerator main body 20 and the capacity of the refrigerator compartment.

  Moreover, in this Embodiment, since the 2nd refrigerator compartment duct 42 is made common throughout all the refrigerator main bodies 20, the efficiency of the assembly operation of the air blower 34 can be improved.

  Further, in the present embodiment, the first refrigerator compartment duct 41 and the second refrigerator compartment duct 42 are configured as independent parts, but all parts such as air flow control are mounted on the first refrigerator compartment duct 41 and integrated. Therefore, this component assembly error can be prevented.

(Embodiment 3)
FIG. 5 is a cross-sectional view of the main part of the side surface of the refrigerator according to the third embodiment of the present invention.

  In FIG. 5, the second refrigerator compartment duct 42 inserts the second heat insulating portion 70 into the heat insulating member 36 of the heat insulating partition wall 25 from above the heat insulating partition wall 25, and the first refrigerator compartment duct 41 is refrigerated. It is pressed against the back surface of the chamber 26 and sealed to be detachable. This sealing portion is provided with a sealing material. (Not shown).

  The operation | movement and effect | action are demonstrated in the refrigerator comprised as mentioned above.

  Maintenance of each component is facilitated by performing separate removal with a combination of the first refrigerator compartment duct 41 and the first heat insulation part 69 and a combination of the second refrigerator compartment duct 42 and the second heat insulation part 70. Yes.

  As described above, in the present embodiment, since the first refrigeration chamber duct 41 and the first heat insulating portion 69 can be detached independently, the refrigeration room temperature adjusting operation portion 48 attached to the first refrigeration chamber duct 41 is provided. In addition, maintenance of the refrigerated room temperature adjustment operation unit 49 and the illumination unit 57 can be easily performed.

  Moreover, in this Embodiment, since the 2nd refrigerator compartment duct 42 and the 2nd heat insulation part 70 are independently removable, the air blower 34 provided in the press-fit part 35 of the heat insulation partition wall 25 is exposed. Thus, the inspection and replacement of the blower 34 can be easily performed.

  Moreover, in this Embodiment, since it can attach or detach with each of the 1st refrigerator compartment duct 41 and the 2nd refrigerator compartment duct 42, working time, such as a maintenance, can be shortened.

  As described above, the refrigerator according to the present invention facilitates the assembly of the refrigerator compartment duct, improves the accuracy of the cold air supply, reduces the number of assembly steps, and reduces the cost. Not applicable to commercial refrigerators.

DESCRIPTION OF SYMBOLS 20 Refrigerator main body 21 Inner box 22 Outer box 24 Heat insulation box body 25 Heat insulation partition wall 26 Refrigeration room 27 Freezing room 28 Refrigeration room door 29 Freezing room door 32 Cooler 34 Blower 39 Heat insulation part 40 Refrigeration room duct 41 First refrigeration room duct 42 Second refrigerator compartment duct 43 Cold air 44 Cold air passage 47 Side outlet 48 Refrigerating room temperature adjustment operation section 49 Refrigerating room temperature adjustment operation section 52 Suction port

Claims (8)

A heat insulating box, a refrigerating room provided at the top of the heat insulating box, a freezing room provided at the lower part of the heat insulating box, a heat insulating partition wall separating the refrigerating room and the freezing room, and a back surface of the refrigerating room. A refrigerating room duct that supplies cold air from the bottom to the top, a heat insulating portion that forms an inner wall of the refrigerating room duct and forms a cold air passage, and a plurality of side surface discharges provided on the side surfaces of the refrigerating room duct. An outlet and a suction port provided in a part of the refrigerator compartment duct below the side discharge port, wherein the refrigerator compartment duct is provided with the first refrigerator compartment duct provided with the side discharge port and the suction port. A refrigerator having a second refrigerator compartment duct connected vertically, the first refrigerator compartment duct having a refrigerator room temperature adjusting unit for adjusting the temperature of the refrigerator compartment and a refrigerator room temperature adjusting unit for adjusting the freezer temperature . The heat insulating part integrally forms the inner walls of the first refrigerator compartment duct and the second refrigerator compartment duct, and connects the second refrigerator compartment duct to the first refrigerator compartment duct so as to communicate with the suction port outside the heat insulating part. The refrigerator according to claim 1, further comprising a suction passage. The first refrigerator compartment duct is provided with a cold air passage in a Y shape, an upper discharge port is provided at an upper end thereof, a plurality of side discharge ports are provided on a side surface, and the upper discharge port and the Y-shaped cold air passage are provided. The refrigerator of Claim 1 or 2 which provided the illumination means between the parts which branched. The heat insulation part according to any one of claims 1 to 3, wherein the heat insulation part is divided into a first heat insulation part that constitutes an inner wall of the first refrigerator compartment duct and a second heat insulator that constitutes an inner wall of the second refrigerator compartment duct. refrigerator. The second refrigerating room duct is configured such that the second heat insulating portion is inserted into the heat insulating member of the heat insulating partition wall from above the heat insulating partition wall, and the first cold room duct is pressed and sealed toward the back of the refrigerating room. The refrigerator according to any one of claims 1 to 4, wherein the refrigerator is detachable. The refrigerator according to any one of claims 1 to 6, wherein the first refrigerator compartment duct is attachable and detachable by inserting the first heat insulating portion into the second heat insulating portion from above the second refrigerator compartment duct. The plurality of side surface discharge ports provided in the side portion of the refrigerator compartment duct blow out cold air along the ceilings of a plurality of shelf boards provided in a plurality of upper and lower stages in the refrigerator compartment. Refrigerator. The refrigerator according to any one of 1 to 7, wherein the second refrigerator compartment duct is detached from the rear surface of the refrigerator compartment so that the blower provided on the heat insulating partition wall is easily attached and detached.

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