JP2011247561A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator having an increased storage amount by enlarging a volume of a refrigerating chamber 26, and facilitating assembly of a blower 34 and an operation unit 51 for adjusting a temperature of a refrigerating chamber to thereby reduce assembly man-hour and achieve cost reduction.SOLUTION: The refrigerator includes: the blower 34 arranged at a cold air discharge passage 50 in an heat insulating partition wall 25; a heat insulating partition wall rising part 47 provided so that an upper plate 37b of the heat insulating partition wall 25 is projected at the upper side of the blower 34; a cold air aperture 49 provided at a ceiling part 48 of the heat insulating partition wall rising part 47; and the refrigerating chamber temperature adjusting operating part 51 performing temperature adjusting of the refrigerating chamber 26 on the downstream side of the blower 34 between the cold air discharge passage 50 and the cold air aperture 49. There is no need to constitute a large structure which is projected in the refrigerating chamber 26 at an upper part of a refrigerating chamber duct 40, thereby the internal volume of the refrigerating chamber 26 is enlarged. Also, the man-hours of the management of sealing performance or the like are reduced by making assembling easy.

Description

  The present invention relates to a refrigerator in which temperature control means for a refrigerator compartment is provided on a heat insulating partition wall.

  Conventionally, this type of refrigerator is provided with a blowing duct extending in the vertical direction for blowing cold air from the cooler to the upper end of the refrigerator compartment behind the refrigerator compartment, and provided with a damper portion at the upper end of the blower duct, A damper thermostat that adjusts the amount of cold air supplied into the refrigerator compartment is provided (see, for example, Patent Document 1).

  FIG. 6 shows a partial cross-section of a conventional refrigerator described in the public relations. As shown in FIG. 6, the refrigerator 1 is provided with a refrigerator compartment 2 provided in the upper stage, a vegetable compartment 3 provided in the middle stage, and a freezing room 4 provided in the lower stage. The refrigerator compartment 2 is provided with a plurality of storage shelves 5 at the top and bottom. A cooler 6 is disposed behind the freezer compartment 4, and a blower fan 8 that circulates the cool air 7 generated in the cooler 6 behind the vegetable compartment 3 above the refrigerator compartment 4 is disposed.

  Behind the refrigerator compartment 2 is provided a blowing duct 9 extending in the vertical direction at the center in the width direction. The blow-up duct 9 has a lower end connected to a cool air flow path 10 in which a cooler 6 and a blower fan 8 are arranged, and extends upward therefrom and terminates at the uppermost end of the refrigerator compartment 2. Thereby, the cool air 7 from the cooler 6 disposed below is blown up to the uppermost stage of the refrigerator compartment 2 through the blow-up duct 9 by the action of the blower fan 8.

  A damper part 11 for adjusting the amount of cool air 7 supplied from the cooler 6 into the refrigerating chamber 2 is provided at the upper end of the blow-up duct 9, and a damper thermo 12 is disposed in the damper part 11.

JP 2002-22340 A

  However, in the conventional configuration, the damper portion 34 protrudes from the upper part of the refrigerating chamber 2, and there is a problem that the volume of the upper portion of the refrigerating chamber 2 is insufficient and the stored items do not enter.

  Moreover, there are many connection parts of the blowing duct 9 and the damper part 11, and it 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 increase the volume of the refrigerator compartment of the refrigerator, improve the assembly of the blow-up duct 9 and the damper portion 11, and strengthen the seal.

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 and supplies cold air from the bottom to the top, a heat insulating part that forms a cold air passage that forms the inner wall of the refrigerating room duct, and a refrigerating room duct A blower disposed in a cool air discharge passage in a heat insulating partition wall, and a blower comprising a plurality of side discharge ports provided on a side surface of the refrigeration chamber and a suction port provided in a part of the refrigerator compartment duct below the side discharge port A heat insulating partition wall rising portion provided by projecting an upper plate of the heat insulating partition wall above, a cold air opening provided in a ceiling portion of the heat insulating partition wall rising portion, and a downstream side of the blower between the cold air discharge passage and the cold air opening In addition, it is equipped with a refrigeration room temperature control unit that adjusts the temperature of the refrigeration room That.

  This eliminates the need to construct a large structure that protrudes into the refrigerator compartment at the top of the refrigerator compartment duct, and enlarges the internal volume of the refrigerator compartment.

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

  The refrigerator of the present invention can increase the volume of the refrigeration room, increase the amount of stored items, facilitate the assembly of the refrigeration room duct and the refrigeration room temperature adjustment operation unit, reduce the number of assembly steps, and reduce the cost. it can.

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

  According to a first aspect of the present invention, there is provided a heat insulating box, a refrigerating 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 heat insulating partition wall for partitioning the refrigerating room and the freezing room, A refrigeration room duct that is provided on the back surface and supplies cold air from the bottom to the top, a heat insulating part that forms an inner wall of the refrigeration room duct and that forms a cold air passage, and a plurality of side discharges that are provided on the side surfaces of the cold room duct. A blower disposed in the cool air discharge passage in the heat insulation partition wall, and an upper plate of the heat insulation partition wall above the blower, comprising an outlet and a suction port provided in a part of the refrigerator compartment duct below the side discharge port Refrigeration that adjusts the temperature of the refrigerator compartment on the downstream side of the blower between the cold air opening and the cold air opening provided in the ceiling part of the heat insulating partition wall raised portion, the cold insulation opening provided, and the cold air discharge passage By providing a room temperature adjustment operation unit, it protrudes into the refrigerator compartment above the refrigerator compartment duct. Necessary to constitute a large structure, such as is eliminated, to expand the internal volume of the refrigerating compartment, it is possible to increase the storage amount.

  Further, by making the assembly easy, it is possible to reduce the cost by reducing the man-hours for managing the sealing performance.

  In the second invention, in particular, the heat insulating partition wall rising portion of the first invention is configured as a passage in which the cold air discharge passage and the cold air opening are integrated by mounting a cold room duct on the back of the cold room. As a result, the communication configuration and the seal configuration with the cold air passage configured by the heat insulating portion of the refrigerator compartment duct are completed only by installing the refrigerator compartment duct, and the assembly can be simplified, the time can be reduced, and the cost can be reduced. .

  In the third invention, in particular, the heat insulating partition wall rising portion of the first or second invention is configured such that the blower or the refrigerated room temperature adjusting operation unit is made detachable by removing the refrigerator compartment duct. Alternatively, inspection of the refrigerated room temperature adjustment operation unit and replacement of parts can be performed in a short time.

In the fourth aspect of the invention, in particular, the blower of any one of the first to third aspects of the invention is arranged in the projected area from the front of the heat insulating partition wall, so that the blower is arranged in the cooler chamber. Thus, the space occupied by the cooler room can be reduced, and the internal volume of the freezer room and the like can be increased and the storage capacity can be increased accordingly.

  In the fifth aspect of the invention, in particular, the heat insulating partition wall rising portion of any one of the first to fourth aspects of the invention is provided with a front opening for attaching / detaching a blower to a side part on the front side, whereby a refrigerator compartment duct is provided. By removing the front opening, the front opening is exposed, the fan can be easily attached and detached, and the maintenance can be performed in a short time.

  In the sixth aspect of the invention, in particular, the blower of any one of the first to fifth aspects is arranged in the heat insulating partition wall rising portion, so that a section dedicated to the fan is formed in the heat insulating partition wall rising portion. The opening for the cold air passage of the heat insulation partition wall can be reduced, the heat insulation area of the heat insulation partition wall can be increased, and the heat insulation performance of the freezer can be improved.

  In the seventh invention, in particular, the refrigerator compartment duct according to any one of the first to sixth inventions is divided into an upper refrigerator compartment duct and a lower refrigerator compartment duct, and a fan is provided by removing the lower refrigerator compartment duct. Or, by making the refrigerated room temperature adjustment operation part detachable, inspection and replacement of the blower or the refrigeration room temperature adjustment operation part can be performed in a short time, and the seal regeneration operation is also performed within a small range, so there is a problem with the sealing performance. Can prevent crane.

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

  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. The heat insulating part 39 constitutes a cold air passage 42 that guides the cold air 41 discharged from the blower 34 to the upper side between the heat insulating part 39.

  The cold air passage 42 forms a Y-shaped passage shape on the back surface of the refrigerating chamber 26, and the cold air 41 is branched and supplied above. The refrigerator compartment duct 40 is provided in a shape protruding from the back surface of the refrigerator compartment 26, and the inner wall of the refrigerator compartment 26 from the plurality of upper discharge ports 43 above the decorative cover 38 and the plurality of side surface discharge ports 44 on the side portion. The cold air 41 is blown out toward the ceiling or side of the vehicle.

  The refrigerator compartment duct 40 is provided with a suction port 45 below the side discharge port 44, and the suction port 45 is provided below and cool air 41 that has cooled the refrigerator compartment 26 through a suction passage 46 that penetrates the heat insulating partition wall 25. Is returned to the cooler 32. The suction port 45 is provided in the lower part of the refrigerating room duct 40, is isolated from the cold air passage 42, and is configured using a decorative cover 38 outside the heat insulating portion 39 of the refrigerating room 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. With this attachment, the press-fit portion 35 is also configured as a part of the cold air passage 42. A sealing material (not shown) is provided at the contact portion of the in-row configuration to prevent the cool air 41 from leaking.

  Reference numeral 47 denotes a heat insulating partition wall rising portion provided by protruding the upper plate 37b of the heat insulating partition wall 25 toward the refrigerator compartment 26, and is disposed above the press-fit portion 35 in which the blower 34 of the heat insulating partition wall 25 is disposed. The ceiling portion 48 of the heat insulating partition wall rising portion 47 is provided with a cold air opening 49 through which the cold air 41 blows out, and the cold air discharge passage 50 (including the press-fit portion 35) between the cold air opening 49 and the blower 34 is adjusted to a refrigerated room temperature. An operation unit 51 is provided.

  The refrigerated room temperature adjustment operation unit 51 is configured by an electric type that automatically adjusts the amount of cold air 41 supplied to the refrigeration chamber 26 by changing the opening degree of the damper 51b by the motor 51a. The temperature detection of the refrigerating room temperature adjustment operation unit 51 is performed by installing a refrigerating room temperature sensor 51c composed of a thermistor or a thermocouple in a part of the refrigerating room duct 40 (arrangement of the refrigerating room temperature sensor 51c). Will be described later).

  In addition, the heat insulating part 39 is mounted on the heat insulating partition wall rising part 47 so as to cover the refrigerator compartment duct 40 so that the heat insulating part 39 is the resin part 37 of the heat insulating partition wall rising part 47 (the resin part 37 is the outer periphery of the heat insulating partition wall 25). And a cool air discharge passage 50 that is hermetically sealed is configured. Further, when the heat insulating portion 39 is pressed against the resin portion 37 of the heat insulating partition wall rising portion 47, a seal material (not shown) made of urethane foam or polyethylene is sandwiched between them to prevent the cold air 41 from leaking. . By mounting the refrigerator compartment duct 40 on the back surface of the refrigerator compartment 26, a flow path of the cold air 41 from the cooler compartment 30 to the cold air passage 42 through the blower 34 and the cold air discharge passage 50 is configured. A part of the cool air 41 flowing into the cool air discharge passage 50 is blown out to the freezer compartment 27 through the gap or opening of the cooler chamber cover 31 through the diversion passage 52.

  As shown in FIG. 3, when the refrigerator compartment duct 40 is removed, the heat insulating partition wall rising portion 47 is exposed, and the blower 34 discharges cool air from the front opening 53 provided on the front side of the heat insulating partition wall rising portion 47. Removal is performed through an open passage 54 communicating with the passage 50. Further, the refrigerated room temperature adjustment operation unit 51 can be removed from the cold air opening 49 opened in the ceiling portion 48 of the heat insulating partition wall rising portion 47.

55 is a freezing room temperature adjustment operation unit for adjusting the temperature of the freezer compartment 27 and is provided in the refrigerating room duct 40. The refrigerating room temperature operation unit 55 is constituted by a resistor such as a volume, A part of the heat insulating portion 39 that is independent of the passage 42 is used for mounting, and the adjustment knob 55a is exposed to the refrigerator compartment 26.

  The temperature detection unit 55b of the freezing room temperature adjustment operation unit 55 is configured such that, for example, a part of the cold air 41 supplied by the blower 34 at the position through which the cold air 41 passes in the freezer compartment 27 passes through the shunt passage 52 to Since it flows into the freezer compartment 27 through the opening portion, it is installed in the vicinity thereof. The temperature detector 55b is configured by a thermistor or a thermocouple.

  56 is a plurality of shelf boards provided at the top and bottom in the refrigerator compartment 26, and 57 is a refrigerator compartment case (vegetable case, etc.) provided below the lowest shelf board 56a of the plurality of shelf boards 56 in the refrigerator compartment 26. ). Reference numeral 58 denotes a plurality of cases provided in the freezer compartment 27. The plurality of side surface discharge ports 47 of the refrigerator compartment duct 40 blows out the cold air 41 along the ceilings of the plurality of shelf boards 56 provided in the upper and lower stages.

  59 is illumination means provided in the refrigerator compartment duct 40, and the illumination means 59 is disposed inside the heat insulating portion 39 when provided in the refrigerator compartment duct 40 so as not to come into contact with the cold air 41 flowing into the refrigerator compartment duct 40. I have to. The illumination means 59 is provided between the upper part of the Y-shaped cold air passage 42 and the upper discharge port 43 so as to illuminate the refrigerator compartment 26. The illumination means 59 is composed of a plurality of semiconductor light emitting elements (LEDs) 60, and each semiconductor light emitting element 60 is disposed between the shelf boards 56 along the plurality of shelf boards 56 in the refrigerator compartment 26, Illumination between the shelf boards 56 is performed.

  Further, an illumination cover (not shown) that covers the illumination means 59 diffuses light to illuminate a wide range of shelf boards 56. The arrangement of the plurality of shelves 56 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. The wiring of the illumination means 59 is connected through the inside of the heat insulating portion 39 of the refrigerator compartment duct 40. (Not shown) The refrigerator temperature sensor 51c is installed in accordance with the arrangement of the illumination means 59. The refrigerator compartment temperature sensor 51c is integrated with a part of the plurality of semiconductor light emitting elements (LEDs) 60 on the substrate in the vertical direction. Moreover, since it is covered with the lighting cover, it is made not to contact the cold air 41 directly.

  Reference numeral 61 denotes a machine room disposed at the lower rear of the refrigerator main body 20 and provided with a compressor 62. Reference numeral 63 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 63 is pressed against the heat insulating box 24 for sealing.

  Reference numeral 64 denotes an inner surface peripheral protrusion that protrudes 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 inner circumferential protrusion 64 and the inner box 21 or the heat insulating partition wall 25 constitute a substantially horizontal space 65, and the creeping distance of the space 65 is increased to reduce the amount of cold air 41 that can enter the space 65. I am doing so. Similarly, an inner surface peripheral projection 66 that protrudes from the inner surface of the refrigerator compartment door 28 of the refrigerator compartment 26 is provided, and a space 67 is formed by the inner box 21 or the heat insulating partition wall 25, and the creepage distance of the space 67 is increased to increase the cold air. The amount of intrusion into the space 67 of 41 is reduced.

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

The cool air 41 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 41 is supplied to the refrigerating chamber 26 from the upper discharge port 43 and the side discharge port 44 of the refrigerating chamber duct 40 so as to circulate uniformly in the refrigerating chamber 26. Part of the cool air 41 supplied by the blower 34 circulates in the freezer compartment 27 from the cooler chamber 30 through the opening portion of the cooler chamber cover 31. The discharged cold air 41 cools the refrigerator compartment 26 and the freezer compartment 27, and in the refrigerator compartment 26, the cooler 41 passes through the intake passage 46 from the inlet 45 provided below the side outlet 44 of the refrigerator compartment duct 40. Return to 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 41 supplied to the refrigerator compartment 26 and the freezer compartment 27 is performed on the refrigerator compartment 26 side on the refrigerator compartment temperature rising operation portion 51 provided upstream of the cold air opening 49 provided in the ceiling portion 48 of the heat insulating partition wall rising portion 47. Thus, the adjustment is performed by adjusting the passage area of the cool air discharge passage 50. The refrigeration room temperature adjustment operation unit 51 instructs the ratio of the cool air 41 supplied from the cooler chamber 30 through the fan 34 to the refrigerating chamber duct 40.

  With respect to the ratio of the cold air 41 in the refrigerator compartment 26, the temperature adjustment of the freezer compartment 27 is instructed by the adjustment knob 53a of the freezing room temperature adjusting operation unit 55 provided in the refrigerator compartment duct 40, and the temperature inside the freezer compartment 27 is detected. Based on the value of the section 55b, the compressor 62 is turned on or off or the output is reduced.

  The illumination means 59 is provided in the heat insulating portion 39 so that it does not come into contact with the cold air 41 in the cold air passage 42 and does not cause heat exchange or disturbance of the flow of the cold air 41. Moreover, it arrange | positions above the branch part of the Y-shaped cold air | gas channel | path 42, and it integrates with the refrigerator compartment duct 40 using the part which does not obstruct the cold air | gas channel | path 42, and can be attached or detached. The illumination means 59 is composed of several semiconductor light emitting elements 58, each of the semiconductor light emitting elements 60 is arranged so as to improve the illumination between the shelves 56, and light is diffused by an illumination cover (not shown). Thus, a wide range of lighting is performed.

  The heat insulating partition wall 25 that divides the inner box 21 up and down presses and supports the blower 34 into the press-fit portion 35 of the heat insulating partition wall rising portion 47 provided behind the refrigerator compartment 26. 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 is removed from the front opening 53 provided in the side portion on the front side of the heat insulating partition wall rising portion 47 through the opening passage 54 that communicates with the cold air discharge passage 50 by removing the refrigerator compartment duct 40. In this way, by removing the blower 34 upward independently from the heat insulating partition wall 25, services such as failure of the blower 34 are enabled.

  Similarly, by attaching the refrigerated room temperature adjustment operation unit 51 in the vicinity of the cold air opening 49 of the ceiling part 48 of the heat insulating partition wall rising part 47, it is removed from the cold air opening 49 opened in the ceiling part 48 of the heat insulating partition wall rising part 47. It facilitates work such as inspection and replacement. The refrigerated room temperature adjustment operation unit 51 is press-fitted into the cold air discharge passage 50 in the same manner as the blower 34 or is fixed with screws using the resin part 37 near the ceiling part 48.

  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 and the refrigerated room temperature adjusting operation unit 51 attached, and between the outer box 22 and the inner box 21. The heat insulating partition wall 25 is fixed at a predetermined position by filling the foam heat insulating material 23 (foam urethane) 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. Thus, the refrigerator main body 20 shown in FIG. 1 and FIG. 2 is completed through each assembly process.

  The refrigerating room duct 40 is provided with a suction port 45 outside the heat insulating portion 39 to prevent contact between the cold air 41 flowing into the refrigerating room 26 and the cold air 41 flowing into the suction passage 46. The temperature rise of the inflowing cold air 41 is prevented.

Further, the plurality of side surface discharge ports 44 provided in the side portion of the refrigerator compartment duct 40 blow out the cold air 41 along the ceilings of the plurality of shelf boards 56 provided in the upper and lower stages in the refrigerator compartment 26, Cold 4
1 extends between the shelf boards 56 along the ceiling of the shelf board 56.

  As described above, in the present embodiment, the blower 34 in which the main part is disposed in the cool air discharge passage 50 in the heat insulating partition wall 25 and the upper plate 37b of the heat insulating partition wall 25 are provided so as to protrude above the fan 34. The temperature of the refrigerating chamber 26 is on the downstream side of the blower 34 between the heat insulation partition wall rising portion 47, the cold air opening 49 provided in the ceiling portion 48 of the heat insulation partition wall rising portion 47, and the cold air discharge passage 50 and the cold air opening 49. Since the refrigeration room temperature adjustment operation unit 51 for adjusting is provided, it is not necessary to configure a large structure that protrudes into the refrigeration chamber 26 above the refrigeration chamber duct 40, and the internal volume of the refrigeration chamber 26 is increased. The amount of storage can be increased. Moreover, the refrigerating room duct 40 and the refrigerating room temperature adjustment operation unit 51 can be easily assembled, and the number of assembling steps can be reduced and the cost can be reduced.

  Further, in the present embodiment, the heat insulating partition wall rising portion 47 is configured as a passage in which the cold air discharge passage 50 and the cold air opening 49 are integrated since the cold room duct 40 is mounted on the back surface of the cold room 26. The communication configuration and the seal configuration with the cold air passage 49 configured by the heat insulating portion 39 of the duct 40 are completed only by mounting the refrigerator compartment duct 40, and the assembly can be simplified, the time can be reduced, and the cost can be reduced. .

  Moreover, in this Embodiment, since the heat insulation partition wall standing part 47 removed the refrigerator compartment duct 40, and it was made to attach or detach the air blower 34 or the refrigeration room temperature adjustment operation part 51, the air blower 34 or the refrigeration room temperature adjustment operation part 51 can be easily attached and detached, and inspection and replacement of parts can be performed in a short time.

  Moreover, in this Embodiment, since the air blower 34 was arrange | positioned in the projection area from the front of the heat insulation partition wall 25, the structure which arrange | positions the air blower 34 in the cooler room 30 disappears, and the space which the cooler room 30 occupies Therefore, the internal volume of the freezer compartment 27 and the like can be increased, and the amount of storage can be increased.

  Moreover, in this Embodiment, since the heat insulation partition wall standing part 47 provided the front opening 53 for attaching / detaching the air blower 34 to the side part of the front side, the front opening 53 is removed by removing the refrigerator compartment duct 40. It is exposed and the blower 34 can be easily attached and detached, so that maintenance can be performed in a short time.

  Further, in the present embodiment, the configuration of the suction port 45 is not affected by the cold air passage 42 of the heat insulating portion 39 and can be integrated with the material of the decorative cover 38 to have a simple configuration.

  Further, in the present embodiment, the plurality of side discharge ports 44 provided in the side portion of the refrigerator compartment duct 40 blows out the cold air 41 along the ceilings of the plurality of shelf boards 56 provided in the refrigerator compartment 26. As a result, the cool air 41 expands along the ceiling of the shelf board 56, and the entire stored items on the lower shelf board 56 can be cooled without any exception.

  Moreover, in this Embodiment, the refrigerator compartment duct 40 supplies the cold air 41 to the same direction, unifies the blowing state of the cold air 41, and makes uniform the blowing of the cold air 41, 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 41 to flow from the plurality of side surface discharge ports 44 provided on the side portion protruding from the back surface of the refrigerator compartment 26 toward the side portion of the inner wall of the refrigerator compartment 26. Since the supply is performed, the cold air 41 moves along the inner wall of the refrigerator compartment 26 to form a flow that wraps the stored items, and the stored items can be cooled uniformly.

  Further, in the present embodiment, the refrigerator compartment duct 40 is provided with a cold air passage 42 in a Y shape, an upper discharge port 43 is provided at the upper end thereof, and the upper discharge port 43 and the Y-shaped cold air passage 42 are branched. Since the illuminating means 57 is provided between the portions, the illuminating means 59 eliminates the need to provide an irregular protruding portion in the refrigerator compartment 26, and the circulation of the cold air in the refrigerator compartment 26 is rectified and stored. 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 59 arranges a plurality of semiconductor light emitting elements 60 between the shelf plates 56 along the plurality of shelf plates 56. Therefore, the stored items placed on the plurality of shelves 56 in the refrigerator compartment 26 are irradiated with light from each semiconductor light emitting element 60, and the stored items can be easily recognized and taken out.

  In the present embodiment, the illumination unit 59 adjusts the degree of light diffusion by an illumination cover (not shown), and mainly illuminates the space between the shelves 56 with the light of the highly directional semiconductor light emitting device 60. Therefore, it is possible to easily distinguish the stored items by preventing the light from being excessively dispersed.

  In the present embodiment, since the illumination means 59 diffuses light by an illumination cover (not shown), it is also dispersed even with the light of the semiconductor light emitting element 60 having strong directivity to prevent an afterimage from remaining on the eyes. can do.

  Moreover, in this Embodiment, since the illumination means 59 was integrated with the refrigerator compartment duct 40, the assembly and maintenance of the refrigerator compartment duct 40 can be performed easily.

  In the present embodiment, a refrigerator temperature sensor 51c is installed in accordance with the arrangement of the illumination means 59, and is integrated with a part of the plurality of semiconductor light emitting elements (LEDs) 60 in the vertical direction. Therefore, it is covered with a lighting cover, and the temperature of the refrigerating chamber 26 can be stably measured by installing it in a portion that does not directly touch the cold air 41. Moreover, since it is integrated with the substrate of the semiconductor light emitting element (LED) 60, it can be easily attached and detached.

  In the present embodiment, since the inner circumferential protrusion 64 and the inner box 21 that protrude from the inner surface of the freezer compartment door 29 of the freezer compartment 27 constitute a substantially horizontal space 65, the creepage distance of this space 65 can be adjusted. The amount of the cold air 41 entering the space 65 can be reduced, and an increase in power consumption can be prevented.

  Further, in the present embodiment, the creeping distance of the space 67 is adjusted by forming the substantially horizontal space 67 by the inner peripheral protrusion 66 and the inner box 21 protruding from the inner surface of the refrigerator compartment door 28 of the refrigerator compartment 26. Therefore, the amount of cold air 41 entering the space 67 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, service such as failure of the blower 34 can be easily performed. Further, the refrigerated room temperature adjustment operation unit 51 is provided in the vicinity of the cold air opening 49 of the ceiling portion 48 of the heat insulating partition wall rising portion 47. Since it is mounted, operations such as inspection and replacement can be facilitated.

  The refrigerated room temperature adjustment operation unit 47 can use a mechanical or manual damper in place of the electric type, and can also have a fixed opening configuration in order to further reduce the cost.

The refrigerating room temperature sensor 51 c of the refrigerating room temperature adjustment operation unit 51 can be assembled and integrated on the same substrate as the illumination unit 59 in the vicinity of the illumination unit 59.

(Embodiment 2)
FIG. 4 is a cross-sectional view of the main part of the side surface of the refrigerator according to the second embodiment of the present invention.

  In FIG. 4, the blower 34 is fixed in the heat insulating partition wall rising portion 47 and covered with a heat insulating member 68. A cold air discharge passage 50 is provided on the downstream side of the blower 34, and a cold air suction passage 69 is provided through the heat insulating partition wall 25 on the upstream side.

  A branch passage 52 is provided from a part of the cool air discharge passage 50 through the heat insulating partition wall 25.

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

  The cool air 41 flows in from the cooler chamber 30 toward the blower 34 via the cool air suction passage 69, and a part of the cool air 41 that flows into the cool air discharge passage 50 passes through the shunt passage 52 to the cooler chamber cover 31. The air is blown out to the freezer compartment 27 through the gap and the opening. Most of the cold air 41 passes from the cold air discharge passage 50 through the refrigerating room temperature adjustment operation unit 51 while adjusting the flow rate, and the inside of the refrigerating chamber 26 from the upper discharge port 43 and the side discharge port 44 of the cold air passage 42 of the refrigerating chamber duct 40. To supply.

  As described above, in the present embodiment, since the blower 34 is fixed in the heat insulating partition wall rising portion 47, a section dedicated to the blower 34 is formed in the heat insulating partition wall rising portion 47, and the heat insulating partition is formed. The opening area of the shunt passage 52 and the cold air suction passage 69 for passing the cold air 41 through the wall 25 is reduced, the 25 heat insulation area of the heat insulation partition wall is increased, and the heat insulation performance of the freezer compartment 27 is improved. Can do.

  Further, in the present embodiment, since the room of the blower 34 covered with the heat insulating member 68 can be configured in the heat insulating partition wall rising portion 47, the noise is quieted so as not to leak the noise of the blower 34 to the outside. be able to.

(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 refrigerator compartment duct 40 is divided into an upper refrigerator compartment duct 70 and a lower refrigerator compartment duct 71. By removing the lower refrigerator compartment duct 71, the blower 34 or the refrigerator room temperature adjustment operation unit 51 is attached and detached. I have to. The freezer room temperature adjustment operation unit 55 is attached to the upper refrigerating chamber duct 70 by using a part of the heat insulating portion 39 that is independent of the cold air passage 42 of the refrigerating chamber duct 40, and the adjustment knob 55 a is attached to the refrigerating chamber 26. It ’s on the inside. The lower refrigerator compartment duct 71 is provided with a lower heat insulating portion 72 using the same heat insulating material as the heat insulating portion 39.

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

  The lower refrigerator compartment duct 71 inserts the lower heat insulating portion 72 into the heat insulating member 36 of the heat insulating partition wall 25 from above the heat insulating partition wall 25, and toward the rear side of the refrigerator compartment 26 with respect to the upper refrigerator compartment duct 70. It is pressed and sealed, making it removable. This seal portion is provided with a seal material (not shown).

In addition, each component is easily maintained by performing separate removal with a combination of the upper refrigerator compartment duct 70 and the heat insulating portion 39 and a combination of the lower refrigerator compartment duct 71 and the lower heat insulating portion 72.

  As described above, in the present embodiment, it is possible to remove and install the blower 34 or the refrigerated room temperature adjustment operation unit 51 simply by removing the lower refrigeration chamber duct 71, so that parts can be inspected and replaced in a short time. In addition, since the seal regeneration operation is also performed within a small range, it is possible to prevent a malfunction of the seal performance.

  Further, in the present embodiment, since the upper refrigerator compartment duct 70 and the heat insulating portion 39 can be detached independently, the maintenance of the refrigerated room temperature adjusting operation portion 55 attached to the upper refrigerator compartment duct 70 can be easily performed. it can.

  Moreover, in this Embodiment, since it can attach or detach with each of the upper refrigerator compartment duct 70 and the lower refrigerator compartment duct 71, working time, such as a maintenance, can be shortened.

  As described above, the refrigerator according to the present invention increases the volume of the refrigeration room, increases the storage capacity, facilitates assembly of the refrigeration room duct and the refrigeration room temperature control unit, and reduces the number of assembly steps. Since the cost is reduced, it can be applied not only to household refrigerators but also 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 37b Upper plate 39 Heat insulation part 40 Refrigeration room duct 41 Cold air 42 Cold air Passage 44 Side discharge port 45 Suction port 47 Heat-insulating partition wall rising part 48 Ceiling part 49 Cold air opening 50 Cold air discharge path 51 Refrigerated room temperature control operation part

Claims (7)

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. A blower disposed in a cool air discharge passage in the heat insulation partition wall, and a heat insulation partition wall above the blower. A heat insulating partition wall rising portion provided by projecting the upper plate, a cold air opening provided in a ceiling portion of the heat insulating partition wall rising portion, and a downstream side of the blower between the cold air discharge passage and the cold air opening, Refrigerator equipped with a refrigerated room temperature control unit for temperature adjustment. The refrigerator according to claim 1, wherein the heat insulating partition wall rising portion is configured as a passage in which the cold air discharge passage and the cold air opening are integrated by attaching a cold room duct to the back surface of the cold room. The refrigerator according to claim 1 or 2, wherein the heat-insulating partition wall rising part is configured such that the blower or the refrigerated room temperature adjusting operation part is detachable by removing the refrigerator compartment duct. The refrigerator according to any one of claims 1 to 3, wherein the blower is disposed within a projected area from the front of the heat insulating partition wall. The refrigerator according to any one of claims 1 to 4, wherein the heat insulating partition wall rising portion is provided with a front opening for attaching and detaching a blower to a side portion on the front side. The refrigerator according to any one of claims 1 to 5, wherein the blower is arranged in a heat insulating partition wall rising portion. The refrigerator compartment duct is configured to be divided into an upper refrigerator compartment duct and a lower refrigerator compartment duct, and the lower refrigerator compartment duct is removed so that the blower or the refrigerator room temperature adjustment operation unit can be attached and detached. The refrigerator of any one.

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