WO2018086577A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2018086577A1
WO2018086577A1 PCT/CN2017/110397 CN2017110397W WO2018086577A1 WO 2018086577 A1 WO2018086577 A1 WO 2018086577A1 CN 2017110397 W CN2017110397 W CN 2017110397W WO 2018086577 A1 WO2018086577 A1 WO 2018086577A1
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WO
WIPO (PCT)
Prior art keywords
blower cover
air
blower
end portion
guide
Prior art date
Application number
PCT/CN2017/110397
Other languages
English (en)
French (fr)
Inventor
杉木稔则
坂部博树
岩上荣生
宫本胜平
Original Assignee
青岛海尔股份有限公司
Aqua株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔股份有限公司, Aqua株式会社 filed Critical 青岛海尔股份有限公司
Publication of WO2018086577A1 publication Critical patent/WO2018086577A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

Definitions

  • the present invention relates to a refrigerator that cools and stores foods and the like in a storage room, and more particularly to a refrigerator having a shielding device that appropriately blocks an air path connected to a storage room.
  • FIG. 9 schematically shows a refrigerator 100 described in this document.
  • the refrigerating compartment 101, the freezing compartment 102, and the fresh-keeping compartment 103 are formed from the top.
  • a cooling chamber 104 accommodating the cooler 108 is formed on the inner side of the freezing compartment 102, and an opening portion 106 for supplying cold air to each storage compartment is formed in the partition wall 105, and the partitioning wall 105 performs the cooling chamber 104 and the freezing compartment 102. Zoning.
  • a blower fan 107 that sends out cold air is disposed in the opening 106, and a blower cover 110 that covers the blower fan 107 is disposed on the side of the freezer compartment 102.
  • a damper 114 is disposed in the middle of the air passage 109 through which the cold air supplied to the refrigerating compartment 101 flows.
  • the blower cover 110 will be described in detail with reference to FIG.
  • the blower cover 110 is formed with a concave portion 111 having a substantially quadrangular shape, and an opening portion 113 is formed by notching the upper portion of the concave portion 111.
  • the opening 113 of the blower cover 110 communicates with the air passage 109 on the refrigerator main body side.
  • the refrigerator 100 having the above configuration operates as follows. Referring to Fig. 9, first, when both the refrigerating compartment 101 and the freezing compartment 102 are cooled, the blower cover 110 is separated from the blower fan 107, the windshield 114 is opened, and the blower fan 107 is rotated in this state. Then, a part of the cold air cooled by the cooler 108 inside the cooling chamber 104 is blown to the freezing compartment 102 by the wind force of the blower fan 107. Further, the other part of the cold air is blown to the refrigerating compartment 101 via the air passage 109, the windshield 114, and the air passage 109. Thereby, both the freezing compartment 102 and the refrigerating compartment 101 are cooled.
  • the blower fan 107 is covered with the blower cover 110, the windshield 114 is opened, and the cold air blower fan 107 cooled by the cooler 108 in this state is blown.
  • the opening 113 formed in the upper portion of the blower cover 110 communicates with the air passage 109. Therefore, the cold air blown by the blower fan 107 is supplied to the refrigerating compartment 101 through the opening 113, the windshield 114, and the air passage 109.
  • blower cover 110 in which the opening 113 is formed, it is possible to appropriately cool the plurality of storage chambers by one cooler 108.
  • covering the opening portion 106 only with the blower cover 110 may cause insufficient airtightness.
  • the blower cover 110 since cold air leaks from the periphery of the blower cover 110, it is difficult to ensure the correctness of the temperature adjustment of the storage.
  • the time of defrosting since the warm air is leaked from the periphery of the blower cover 110, it is expected that the defrosting cannot be performed efficiently.
  • an embodiment of the present invention provides a refrigerator including: a cooler that cools air supplied to a storage compartment via a supply air path; and a cooling chamber equipped with the cooling And forming a blower port connected to the storage compartment; a blower that supplies air from the air supply port to the storage compartment; and a shielding device that at least partially blocks the air supply port
  • the shielding device has: a blower cover that covers the blower from an outer side of the cooling chamber, and blocks the air supply opening on the basis of an opening that ensures the flow of the air to the storage compartment; guiding the air passage Disconnecting the opening of the blower cover with the supply air passage in a state in which the blower cover blocks the air supply port, and in a state where the blower cover blocks the air supply port, The end of the guide duct overlaps the end of the blower cover.
  • a side portion of the end portion of the blower cover has an inclined shape whose width is widened as going to the blower, and a side of the end portion of the guide air duct The portion has an inclined shape that widens as it goes to the blower.
  • the inclination angle of the side surface portion of the blower cover is substantially equal to the inclination angle of the side surface portion of the guide air passage.
  • the inner portion of the end portion of the blower cover is formed into a stepped shape to form a step portion, and in a state in which the blower cover blocks the air supply port, The end portion of the guide duct is in contact with the step portion of the blower cover.
  • a width dimension of an inner side of the end portion of the blower cover is larger than a width dimension of an outer side of the end portion of the guide air duct.
  • an embodiment of the present invention provides a refrigerator including: a cooler that cools air supplied to a storage chamber via a supply air path; and a cooling chamber Providing the cooler and forming an air supply port connected to the storage compartment; a blower that supplies air from the air supply port to the storage compartment; and a shielding device that is at least partially sealed Blocking the air supply opening, the shielding device has: a blower cover covering the blower from an outer side of the cooling chamber, and blocking the air supply opening at an opening portion that ensures the flow of the air to the storage room And guiding the air passage, the opening portion of the blower cover is communicated with the supply air passage in a state in which the blower cover blocks the air supply port, and the air supply port is blocked in the blower cover
  • the end of the guide duct overlaps with the end of the blower cover. Therefore, by overlapping the end of the blower cover with the end of the guide duct, it is possible to prevent air from leaking from the blow
  • a side portion of the end portion of the blower cover has an inclined shape whose width is widened as going to the blower, and a side of the end portion of the guide air duct The portion has an inclined shape that widens as it goes to the blower. Therefore, the side surface portion of the end portion of the blower cover is an inclined surface, and the side surface portion of the end portion of the guide air passage is an inclined surface, so that the movement of the blower cover is not caused by the connection portion between the blower cover and the guide air passage. Guide the air duct obstruction, and improve the airtightness when the blower cover blocks the air supply port.
  • the inclination angle of the side surface portion of the blower cover and the inclination angle of the side surface portion of the guide air passage are substantially equal. Therefore, when the blower cover is moved close to the air blowing port, the inclination angle of the side surface portion of the blower cover is substantially equal to the inclination angle of the end portion of the guide air passage, so that the side portions of the two sides do not interfere with each other and can be smoothly The movement of the blower cover is performed.
  • the inner portion of the end portion of the blower cover is formed into a stepped shape to form a step portion, and in a state in which the blower cover blocks the air supply port, The end portion of the guide duct is in contact with the step portion of the blower cover. Therefore, by the end portion of the guide air duct abutting against the step portion of the blower cover, the airtightness in the connection portion between the guide air duct and the blower cover can be further improved.
  • a width dimension of an inner side of the end portion of the blower cover is larger than a width dimension of an outer side of the end portion of the guide air duct. Therefore, the opening and closing operation of the blower cover can be made smooth by separating the inner side of the end portion of the blower cover from the outer side of the end portion of the guide duct.
  • FIG. 1 is a front view showing an appearance of a refrigerator according to an embodiment of the present invention.
  • FIG. 2 is a side cross-sectional view showing an internal structure of a refrigerator according to an embodiment of the present invention.
  • FIG 3 is a side cross-sectional view showing a structure in the vicinity of a cooling chamber of the refrigerator according to the embodiment of the present invention.
  • FIG. 4 is an exploded perspective view showing a shielding device used in the refrigerator according to the embodiment of the present invention.
  • FIG. 5 is a view showing a shielding device used in the refrigerator according to the embodiment of the present invention, wherein (A) is a perspective view showing a shielding device in a non-closed state, and (B) is a perspective view showing a shielding device in a closed state.
  • FIG. 6 is a view showing a shielding device used in the refrigerator according to the embodiment of the present invention, wherein (A) is a perspective view showing a shielding device in a non-closed state, and (B) and (C) are shielding devices in the state. Sectional view.
  • FIG. 7 is a view showing a shielding device used in the refrigerator according to the embodiment of the present invention, wherein (A) is a cross-sectional view schematically showing the shielding device, and (B) is an enlarged cross-sectional view showing an enlarged main portion of the shielding device.
  • FIG. 8 is a view showing a shielding device used in the refrigerator according to the embodiment of the present invention, wherein (A) and (B) are cross-sectional views showing the shielding device in a closed state, and (C) is an enlarged view showing shielding in the state. An enlarged cross-sectional view of the main part of the device.
  • Fig. 9 is a side cross-sectional view showing a refrigerator according to the background art.
  • Fig. 10 is a perspective view showing a blower cover used in the refrigerator according to the background art.
  • the refrigerator 1 according to the embodiment of the present invention will be described in detail based on the drawings.
  • the same The components are denoted by the same reference numerals in principle, and the repeated description is omitted.
  • each of the up, down, left, and right directions is appropriately used, and the left and right sides indicate the right and left when the refrigerator 1 is viewed from the front.
  • FIG. 1 is a front elevational view showing a schematic structure of a refrigerator 1 of the present embodiment.
  • the refrigerator 1 is provided with a heat insulating box 2 as a main body, and a storage room for storing food or the like is formed inside the heat insulating box 2 .
  • the storage compartment the uppermost section is the refrigerating compartment 3, the lower section of the lower section is the ice making compartment 4, the right side is the upper section freezing compartment 5, and the lower section is the lower section freezing compartment 6, and then the lowermost section is the fresh compartment 7.
  • the ice making compartment 4, the upper freezing compartment 5, and the lower freezing compartment 6 are storage compartments in the freezing temperature range, and the following description also refers to a case where they are collectively referred to as the freezing compartment 4A.
  • each of the heat insulating doors 8 to 12 is opened and closed in the opening corresponding to each of the storage chambers.
  • the heat insulating doors 8a and 8b divide and seal the front surface of the refrigerator compartment 3, and the upper left lower portion of the heat insulating door 8a and the upper right lower portion of the heat insulating door 8b are rotatably supported by the heat insulating box 2.
  • each of the heat insulating doors 9 to 12 is integrally combined with the storage container, and is pulled out to the front side of the refrigerator 1 to be supported by the heat insulating box 2 freely.
  • FIG. 2 is a side cross-sectional view showing a schematic structure of the refrigerator 1.
  • the heat insulating box 2 which is the main body of the refrigerator 1, is made of an outer casing 2a made of a steel plate that is open at the front, and an inner box made of synthetic resin having a gap in the outer casing 2a and having a front opening. 2b constitutes.
  • a heat insulating material 2c made of foamed foamed polyurethane is filled in the gap between the outer casing 2a and the inner casing 2b.
  • each of the heat insulating doors 8 to 12 also has the same heat insulating structure as that of the heat insulating box 2.
  • the refrigerating compartment 3 is separated from the freezing compartment 4A located in the lower section by an insulating partition wall 28.
  • the ice making chamber 4 inside the freezing compartment 4A and the upper freezing compartment 5 are partitioned by a partition wall (not shown). Further, the ice making chamber 4 and the upper freezing chamber 5 are in free communication with the cold air which is cooled between the lower freezing chamber 6 provided in the lower stage. Further, the freezing compartment 4A and the fresh compartment 7 are partitioned by the heat insulating partition wall 29.
  • a refrigerating compartment providing air path 14 is formed on the back surface of the refrigerating compartment 3, and is partitioned by a synthetic resin separator 45 as a supply air path for supplying cold air to the refrigerating compartment 3.
  • the air passage 14 is provided in the refrigerating compartment to form an air outlet 17 for directing the cold airflow to the refrigerating compartment 3.
  • a refrigerating compartment windshield 25 is provided in the refrigerating compartment air supply path 14.
  • the refrigerating compartment windshield 25 is a windshield that is opened and closed by a motor or the like, and controls the flow rate of the cold air supplied to the refrigerating compartment 3 to maintain the temperature inside the refrigerating compartment 3 appropriately.
  • a cold airflow that cools the cooler 32 is formed on the inner side of the freezing compartment 4A to supply the air passage 15 to the freezing compartment of the freezing compartment 4A.
  • a cooling chamber 13 is formed on the inner side of the freezer compartment providing air passage 15, and a cooler 32, which is an evaporator for cooling the air circulating in the refrigerator, is disposed inside the cooling chamber 13.
  • the cooler 32 is connected to a compressor 31, a radiator (not shown), and an expansion unit, which is a capillary (not shown), via a refrigerant pipe to constitute a vapor compression refrigeration cycle.
  • the refrigerator 1 includes a control device (not shown) that performs a predetermined arithmetic process based on an input from a temperature sensor or a timer (not shown), and controls the compressor 31, the blower 35, the shielding device 50, and the refrigerating compartment windshield 25 Each of the constituent machines.
  • FIG. 3 is a side cross-sectional view showing a structure in the vicinity of the cooling chamber 13 of the refrigerator 1.
  • the cooling chamber 13 is provided inside the heat insulating box 2 on the back side of the freezer compartment air passage 15.
  • the cooling chamber 13 and the freezing compartment 4A are partitioned by a separator 46 made of synthetic resin.
  • the freezer compartment air passage 15 formed in front of the cooling chamber 13 is a space formed between the partition 46 and the synthetic resin front cover 47 assembled in front thereof, and is a wind that flows through the cold air cooled by the cooler 32. road.
  • the front cover 47 forms an air outlet 18 which is an opening for blowing cold air into the freezing compartment 4A.
  • a return port 23 for returning air from the freezing compartment 4A to the cooling chamber 13 is formed on the lower back surface of the lower freezing compartment 6. Further, a return port 13b is formed below the cooling chamber 13, and is connected to the return port 23, and the returning cold air from each storage chamber is sucked into the inside of the cooling chamber 13.
  • a defrosting heater 33 is provided below the cooler 32 as a defrosting unit that melts and removes the frost adhering to the cooler 32.
  • the defrosting heater 33 is a resistance heating type heater.
  • An air outlet 13a which is an opening that is connected to each storage compartment, is formed in the upper portion of the partition 46.
  • the air supply port 13a is an opening through which the cool air cooled by the cooler 32 flows, and the cooling chamber 13 and the refrigerating compartment supply air path 14 and the freezing compartment supply air path 15 are communicated.
  • a blower 35 that sends out cold air is disposed toward the freezing compartment 4A or the like.
  • the blower 35 is an axial flow fan including a rotary fan 37 and a casing 36 that forms a wind tunnel 36a which is a substantially cylindrical opening.
  • the casing 36 is attached to the air supply port 13a of the cooling chamber 13.
  • a shielding device 50 is provided outside the air blowing port 13a of the cooling chamber 13, and is provided with a blower cover 51 for closing the air blowing port 13a.
  • the supporting base 53 is attached to, for example, the casing 36 of the blower 35.
  • a guide duct 59 that connects the upper end opening of the blower cover 51 and the refrigerating compartment supply air path 14 is disposed.
  • the surface of the blower cover 51 that faces the cooling chamber 13 is formed into a concave shape.
  • the blower cover 51 does not come into contact with the fan 37 that protrudes toward the discharge side from the casing 36, and can abut against the support base 53 outside the wind tunnel 36a, and close the blower port 13a.
  • the shielding device 50 is covered by the shielding device cover 49 from the front. A gap that allows movement of the blower cover 51 in the front-rear direction is formed between the shielding device 50 and the shielding device cover 49.
  • FIG. 4 is a perspective view showing the respective members constituting the shielding device 50 in the front-rear direction.
  • the shielding device 50 includes a blower cover 51 that covers the fan 37, a support base 53 that mounts the blower cover 51 to the main body of the refrigerator 1, and a guide duct 59 that connects the blower cover 51 and the air passage on the refrigerator main body side.
  • the main function of the shielding device 50 is to provide the cold air blown by the fan 37 to the desired storage room by appropriately rotating the fan 37 into a non-closed state or a closed state.
  • the shielding device 50 to the closed state, it is suppressed that the warm air generated in the defrosting stroke of the cooler 32 flows into the freezing compartment 4A or the like.
  • the warm air is air heated by the defrosting heater 33.
  • the blower cover 51 is obtained by roughly injection molding a synthetic resin material into a shape of a lid, and has a main surface portion 69 that has a substantially square shape when viewed from the front, and a side surface portion 70 that extends rearward from the peripheral edge portion of the main surface portion 69.
  • the screw hole 63 is formed by circularly penetrating the center of the main surface portion 69 in the vicinity of the center, and the inner side surface of the screw hole 63 is spirally recessed to form a screw groove.
  • the opening portion 64 is formed by opening the side surface portion 70 on the upper side of the blower cover 51.
  • the opening 64 is coupled to the opening 65 of the guide duct 59 in a state where the blower cover 51 blocks the blower 35.
  • a support hole 62 for inserting a guide pin 54 to be described later is formed in the vicinity of the lower left corner portion and the vicinity of the upper right corner portion of the blower cover 51.
  • the blower cover 51 substantially blocks the fan 37 disposed in the air outlet 13a of the cooling chamber 13. Further, since the opening portion 64 is formed in the upper portion of the blower cover 51, the cool air blown by the fan 37 can be supplied to the refrigerator compartment 3 via the opening 64 in a state where the blower cover 51 blocks the fan 37.
  • the side surface portion 70 has an inclined shape in which the width becomes wider as it goes to the rear of the blower 35, in the upper end portion of the blower cover 51 where the opening 64 is formed. .
  • the step portion 75 is formed on the main surface portion 69 and the side surface portion 70 of the blower cover 51 at the upper end portion of the blower cover 51 where the opening portion 64 is formed. The related structure will be described later.
  • the drive shaft 61 has a substantially cylindrical shape, and is provided with a thread (not shown) in which a part of the side surface is spirally and continuously raised.
  • a stepping motor (not shown) is built in the drive shaft 61, and the drive shaft 61 is rotated by a predetermined angle by the driving force of the motor.
  • the blower cover 51 moves toward the support base 53 side, and the side surface portion 70 of the blower cover 51 abuts against the frame portion 71 of the support base 53, and the gap is not formed. It becomes a closed state. Therefore, cold air that is blown by the fan 37 (not shown) can be supplied to the refrigerating compartment 3 via the opening 64 and the guide duct 59 instead of being supplied to the freezing compartment 4A.
  • the support base 53 mainly has a frame portion 71 having a rectangular frame shape in a plan view, a shaft support portion 72 that supports the drive shaft 61 disposed at the center portion, and a support frame that connects the shaft support portion 72 and the corner portion of the frame portion 71. 60; and a guide pin 54 that is erected on the lower left corner portion and the upper right corner portion of the frame portion 71.
  • the frame portion 71 is a frame-shaped plate member that mechanically supports the entire support base 53 , and a plurality of hole portions 73 penetrating in the thickness direction of the support base 53 are provided in the vicinity of the four corners. As shown in FIG. 4, the shielding device 50 including the frame portion 71 via the fixing means such as a screw of the through hole portion 73 is fixed to the separator 46.
  • the guide pin 54 is a columnar member that is erected at a position corresponding to the support hole 62 of the blower cover 51. Each of the guide pins 54 is guided to move in the front-rear direction of the blower cover 51 by being inserted into the support hole 62 and sliding.
  • the guide duct 59 has a function of connecting the opening portion 64 of the blower cover 51 and the refrigerating chamber supply air passage 14 when the blower cover 51 is closed in the closed state by the blower cover 51.
  • the guide duct 59 is made of an injection-molded synthetic resin, and has a front surface portion 40 facing forward and a side surface portion 41 facing both sides.
  • the opening 65 formed at the lower end of the guide duct 59 is disposed at a position that coincides with the opening 64 of the blower cover 51 in the closed state. Therefore, the opening 65 of the guide duct 59 that opens downward and the opening 64 of the blower cover 51 that opens upward are substantially the same shape and size.
  • the opening on the rear side of the guide duct 59 (not shown) is connected to the inlet portion 14a shown in Fig. 3 .
  • the side surface portion 41 of the guide air duct 59 has an inclined shape in which the width is widened toward the rear of the air blower 35, and the related matters will be described later.
  • FIG. 5 (A) is a mask showing the non-closed state
  • FIG. 5(B) is a perspective view showing the shielding device 50 in a closed state.
  • the non-closed state means that the blower cover 51 is in a state in which the fan 37 is blocked
  • the closed state refers to a state in which the blower cover 51 blocks the fan 37.
  • the blower cover 51 in the non-closed state, the blower cover 51 is moved forward by the driving force of the drive shaft 61. Therefore, the rear end of the side surface portion 70 of the blower cover 51 is separated from the support base 53, and a gap is formed between the blower cover 51 and the support base 53. In this state, the opening portion 64 formed in the upper portion of the blower cover 51 does not communicate with the opening portion 65 formed in the lower portion of the guide duct 59.
  • the fan 37 shown in FIG. 4 is rotated in this state and air is blown, the cold air blown by the air is supplied to the freezing compartment 4A via the gap.
  • the drive shaft 61 is rotated counterclockwise as viewed from the front, for example. Thereby, the blower cover 51 moves rearward, and the rear end portion of the side surface portion 70 of the blower cover 51 abuts against the front surface of the support base 53.
  • the guide pin 54 of the support base 53 is inserted into the support hole 62 of the blower cover 51, and the blower cover 51 is opened and closed, the guide pin 54 slides inside the support hole 62. Further, the guide pin 54 and the support hole 62 are disposed in the vicinity of the opposite corner portions of the blower cover 51. Therefore, the opening and closing operation of the blower cover 51 is stably performed by sliding the guide pin 54 inside the support hole 62.
  • the overlapping portion 66 is formed by projecting the periphery of the opening portion 64 formed at the upper end of the blower cover 51 upward.
  • the overlapping portion 67 is formed by projecting the periphery of the opening portion 65 formed at the lower end of the guide duct 59 downward. Therefore, when the blower cover 51 is closed, the overlapping portion 66 of the blower cover 51 and the overlapping portion 67 of the guide duct 59 overlap.
  • the overlapping portion 66 of the blower cover 51 covers the overlapping portion 67 of the guide duct 59 from the outside.
  • 6 is a view showing a shielding device 50 in a non-closed state
  • FIG. 7 is a view showing a configuration of a blower cover 51 and a guide air duct 59 constituting the shielding device 50 in detail
  • FIG. 8 is a view showing the shielding device 50 in a closed state.
  • FIG. 6(A) is a perspective view showing the shielding device 50
  • FIG. 6(B) is a cross-sectional view showing the shielding device 50 of the ⁇ - ⁇ cross section of FIG. 6(A)
  • FIG. 6(B) is a view showing the shielding device 50 of FIG. 6(A).
  • the blower cover 51 is driven by the driving force of the drive shaft 61.
  • the blower cover 51 is disposed away from the fan 37 shown in FIG.
  • the height difference portion 75 is formed by recessing the inner side of the upper end portion of the blower cover 51 to the outside as described above.
  • the step portion 75 is formed continuously with the upper end portion of the main surface portion 69 of the blower cover 51 and the upper end portion of the side surface portion 70 shown in FIG. 6(A). Further, the position of the step portion 75 in the vertical direction is disposed at the same level as the lower end portion of the guide duct 59.
  • the lower end of the guide duct 59 is disposed above the lower end of the step portion 75 of the blower cover 51 and below the upper end of the step portion 75. As described later, when the blower cover 51 is moved rearward to make the closed state, the step portion 75 of the blower cover 51 abuts against the lower end portion of the guide duct 59, and the blower cover 51 and the guide duct can be improved. Air tightness between 59.
  • the blower cover 51 has a side surface portion 70A formed on the left side and a side surface portion 70B formed on the right side.
  • the side surface portion 70A on the left side is inclined toward the rear side
  • the side surface portion 70B on the right side is inclined toward the rear side and toward the right side.
  • the inclination angle at which the side surface portion 70A is inclined to the left side and the inclination angle at which the side surface portion 70B is inclined to the right side are substantially the same.
  • the guide duct 59 has a side surface portion 41A formed on the left side and a side surface portion 41B formed on the right side.
  • the side surface portion 41A formed on the left side is inclined rearward and inclined to the left side
  • the side surface portion 41B formed on the right side is inclined rearward and to the right side.
  • the inclination angle at which the side surface portion 41A is inclined to the left side and the inclination angle at which the side surface portion 41B is inclined to the right side are substantially the same.
  • the side surface portions 70A and 70B of the blower cover 51 and the side surface portions 41A and 40B of the guide air duct 59 are inclined surfaces that extend outward, the fan cover 51 is not moved when the blower cover 51 is opened or closed.
  • the guide duct 59 is obstructed. Therefore, the opening and closing operation of the blower cover 51 can be smoothly performed.
  • the side surface portion 70A of the blower cover 51 and the side surface portion 41 of the guide air duct 59 and the like are inclined surfaces, and the cold air can be smoothly supplied through the gap between the two.
  • FIG. Fig. 7(A) is a cross-sectional view of the ⁇ - ⁇ cross section of Fig. 6(A), and Fig. 7(B) is an enlarged cross-sectional view showing a part of the ⁇ - ⁇ cross section.
  • the width of the inside of the blower cover 51 is larger than the width of the outside of the guide duct 59.
  • the width L10 of the front end portion of the inner side of the blower cover 51 is longer than the width L13 of the front end portion of the outer side of the guide duct 59.
  • the width L11 of the rear end portion of the inside of the blower cover 51 is longer than the width L14 of the rear end portion of the outside of the guide duct 59.
  • the blower cover 51 when the guide duct 59 is blocked by the blower cover 51, the inner surface of the blower cover 51 and the outer surface of the guide duct 59 are not in close contact with each other, and a fine gap is formed therebetween. Therefore, the blower cover 51 and the guide duct 59 do not mesh with each other, and the forward and backward movement of the blower cover 51 can be smoothly performed.
  • the inclination angle ⁇ 1 of the side surface portion 70A of the blower cover 51 inclined from the front-rear direction is, for example, 5 degrees or more and 10 degrees or less, and is typically set to 5 degrees, for example.
  • the inclination angle ⁇ 2 of the side surface portion 41A of the guide air duct 59 which is inclined from the front-rear direction is, for example, 5 degrees or more and 10 degrees or less, and is typically set to 5 degrees, for example.
  • the inclination angle ⁇ 1 of the side surface portion 70A of the blower cover 51 is equal to or substantially the same as the inclination angle ⁇ 2 of the side surface portion 41A of the guide duct 59.
  • the inclination angle of the side surface portion 70B of the blower cover 51 from the front-rear direction and the inclination of the side surface portion 41B of the guide air duct 59 are inclined from the front-rear direction.
  • the angles are the same or roughly the same.
  • the side surface portion 70A of the blower cover 51 and the side surface portion 41A of the guide duct 59 are substantially parallel. Therefore, the side surface portion 70A of the blower cover 51 and the side surface portion 41A of the guide air duct 59 are interfered with the forward and backward movement of the blower cover 51, and the operation of the blower cover 51 can be smoothly performed.
  • the inclination angle ⁇ 1 and the inclination angle ⁇ 2 are 5 degrees or more, the effect of suppressing the interference between the side surface portion 70A of the blower cover 51 and the side surface portion 41A of the guide air passage 59 can be remarkable.
  • the inclination angle ⁇ 1 and the inclination angle ⁇ 2 By setting the inclination angle ⁇ 1 and the inclination angle ⁇ 2 to 10 degrees or less, excessive expansion of the blower cover 51 and the guide duct 59 in the left-right direction can be suppressed.
  • FIG. 8(A) is a cross-sectional view of the ⁇ - ⁇ section (refer to FIG. 6(A)) of the shielding device 50 in the closed state
  • FIG. 8(B) is a ⁇ - ⁇ section of the shielding device 50 in the closed state (refer to FIG. 6).
  • (A)) is a cross-sectional view
  • FIG. 8(B) is an enlarged cross-sectional view showing a cross-sectional portion in the ⁇ - ⁇ cross section.
  • the blower cover 51 is moved rearward by rotating the drive shaft 61 in a predetermined direction, and the rear end portion of the blower cover 51 and the main surface of the front side of the frame portion 71 of the support base 53 are brought into contact with each other. Pick up. As a result, the fan 37 and the air blowing port 13a (not shown) are closed by the blower cover 51, and the cold air or the warm air is prevented from entering from the gap between the blower cover 51 and the support base 53.
  • the rear side surface of the step portion 75 formed at the upper end of the blower cover 51 abuts against the front side surface of the lower end of the guide duct 59.
  • the step portion 75 is formed continuously between the upper end portion of the blower cover 51 and the main surface portion 69 and the side surface portion 70. Therefore, at the lower end of the guide duct 59, the main surface portion 40 of the guide duct 59 and the outer surface of the side surface portion 70 are in contact with the inner side surface of the step portion 75 of the blower cover 51 without a gap. This suppresses leakage of cold air from the gap between the blower cover 51 and the guide duct 59 to the outside.
  • the rear main surface of the main surface portion 69 of the blower cover 51 abuts against the front main surface of the main surface portion 77 of the guide duct 59 or Close.
  • the left and right side surface portions 70A and 70B formed on the blower cover 51 abut or come close to the side surface portions 41A and 41B formed on the left and right sides of the guide air passage 59.
  • the inner side surface of the side surface portion 70A formed on the left side of the blower cover 51 is in contact with the outer side surface of the side surface portion 41A formed on the left side of the guide air duct 59. Or close.
  • the operation of cooling only the refrigerating compartment 3 is said.
  • the compressor 31 is operated based on an instruction from the control device, and the refrigerating compartment windshield 25 is opened to operate the blower 35.
  • the shielding device 50 since the shielding device 50 is in the closed state, leakage of cold air from between the blower cover 51 and the guide duct 59 is suppressed, and the refrigerating compartment 3 can be efficiently cooled.
  • the air cooled by the cooler 32 sequentially passes through the air supply port 13a of the cooling chamber 13, the blower 35, the internal space of the blower cover 51, the guide air duct 59, the refrigerating compartment windshield 25, the refrigerating compartment supply air path 14, and the air outlet. 17, is supplied to the refrigerating compartment 3.
  • the foodstuff etc. stored in the inside of the refrigerator compartment 3 can be cooled and stored at the suitable temperature.
  • the circulating cold air supplied to the inside of the refrigerating compartment 3 is returned to the inside of the cooling chamber 13 via the return port (not shown) and the return air path. It is cooled again by the cooler 32 there.
  • the compressor 31 is operated by the instruction of the control device, the refrigerating compartment windshield 25 is closed, the blower 35 is operated, and the blower cover 51 is opened, whereby the freezing compartment 4A can be cooled.
  • the blower cover 51 is in a non-closed state from the support base 53 as shown in FIG. 5(A).
  • the air cooled by the cooler 32 is sent out through the blower 35 disposed in the air blowing port 13a of the cooling chamber 13, and the air passage 15 and the air outlet are sequentially supplied through the freezer compartment via the gap between the blower cover 51 and the support base 53. 18, only provided to the freezer compartment 4A.
  • the food or the like stored in the inside of the freezing compartment 4A can be cooled and stored at an appropriate temperature. Then, the air inside the freezing compartment 4A flows to the inside of the cooling chamber 13 through the return port 13b of the cooling chamber 13 through the return port 23 formed deep in the lower section freezer compartment 6.
  • the length in which the blower cover 51 in this case is separated from the support base 53 is shorter than the length in which the two are separated only when the freezing compartment 4A is cooled.
  • the length separating the blower cover 51 and the support base 53 is made halfway as compared with the case where only the freezing compartment 4A is cooled.
  • the refrigerating compartment windshield 25 is in an open state.
  • the defrosting cooling operation for cooling the refrigerator compartment 3 by the latent heat of the frost attached to the cooler 32 will be described.
  • the operation of the compressor 31 is stopped based on the instruction of the control device, and as shown in FIG. 5(B), the closed state of the shielding device 50 is closed.
  • the refrigerating compartment windshield 25 is opened based on the instruction of the control device to operate the blower 35.
  • air is circulated between the refrigerating compartment 3 and the cooling chamber 13, and the frost adhering to the cooler 32 can be melted by the circulating air. That is, defrosting can be performed without performing heating of the defrosting heater 33.
  • the cooling of the refrigerating compartment 3 can be performed by the heat of fusion of the frost without operating the compressor 31.
  • the compressor 31 is stopped based on the instruction of the control device, and when the defrosting heater 33 is energized, the defrosting heater 33 generates heat, and the cooling chamber 13 is warmed to apply the frost attached to the cooler 32. melt.
  • the shielding device 50 is in a closed state, and the air blowing port 13a is closed by the blower cover 51, and the refrigerating compartment windshield 25 is closed.
  • warm air is prevented from entering between the blower cover 51 and the guide duct 59. Therefore, the loss of thermal energy is small, the defrosting stroke can be efficiently performed, and the time and energy involved in defrosting can be reduced.
  • the airtightness of the shielding device 50 is improved by the above-described configuration, cold air is not leaked from the shielding device 50 during the cooling operation for cooling each of the storages, so that the cooling efficiency is improved and each storage can be performed.
  • the library is in the desired temperature band within the library. Further, at the time of defrosting, the warm air does not enter from the shielding device 50, the loss of thermal energy in the defrosting stroke is suppressed, the defrosting time is shortened, and the storage chamber can be prevented from being heated by the incoming warm air.

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Abstract

一种冰箱（1），其具备送风机（35）以及适当关闭送风口（13a）的遮蔽装置（50）。遮蔽装置（50）具有送风机外罩（51）和引导风道（59），在送风机外罩（51）封堵送风口（13a）的状态下，引导风道（59）的端部与送风机外罩（51）的端部重叠。送风机外罩（51）的上端的侧面部（70）呈倾斜形状，引导风道（59）的下端的侧面部（41）也呈倾斜形状。该冰箱（1）确保在冷却室（13）的开口部（13a）被遮蔽装置（50）关闭时的气密性。

Description

冰箱
本申请要求了申请日为2016年11月11日，申请号为2016-220585，发明名称为“冰箱”的日本专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及在贮藏室内冷却保存食品等的冰箱，特别涉及具备适当封堵与贮藏室相连的风路的遮蔽装置的冰箱。
背景技术
现有技术中，已知专利文献1：JP特开2013-2664号公报记载那样的用一个冷却器适当冷却多个贮藏室的冰箱。图9示意示出记载于该文献的冰箱100。在图9所示的冰箱100中，从上方起形成有冷藏室101、冷冻室102以及保鲜室103。在冷冻室102的里侧形成有收纳冷却器108的冷却室104，在区划壁105形成有用于将冷气提供给各贮藏室的开口部106，该区划壁105将冷却室104与冷冻室102进行区划。另外，在该开口部106配设有送出冷气的送风风扇107，送风风扇在冷冻室102侧配置有覆盖该送风风扇107的送风机外罩110。在提供给冷藏室101的冷气所流通的风路109的中途配设有风挡(damper)114。
参考图10来详述所述送风机外罩110。送风机外罩110形成有呈大致四角形形状的凹部111，将凹部111的上部部分开槽而形成有开口部113。在此，在送风机外罩110覆盖所述送风风扇107的状况下，送风机外罩110的开口部113与冰箱主体侧的风路109连通。
所述构成的冰箱100如下那样动作。参考图9，首先在将冷藏室101以及冷冻室102两方冷却的情况下，使送风机外罩110与送风风扇107分开，打开风挡114，在该状态下使送风风扇107旋转。于是，在冷却室104的内部被冷却器108冷却后的冷气的一部分凭借送风风扇107的送风力被送风到冷冻室102。另外，该冷气的其他一部分经由风路109、风挡114以及风路109被送风到冷藏室101。由此冷冻室102和冷藏室101两方被冷却。
另一方面，在仅将冷藏室101冷却时，将送风风扇107用送风机外罩110覆盖，打开风挡114，将在该状态下被冷却器108冷却的冷气用送风风扇107进行送风。若使送风机外罩110成为关闭状态，则形成于送风机外罩110的上部的开口部113与风路109连通。因而被送风风扇107送风的冷气经由所述开口部113、风挡114、风路109被提供给冷藏室101。
如上述那样，通过使用形成有开口部113的送风机外罩110，能用一个冷却器108适当冷却多个贮藏室。
然而，在专利文献1：JP特开2013-2664号公报记载的冰箱中，从将冷气高效地送风到各贮藏室的效率性的观点出发还有改善的余地。具体而言，如参考图9说明的那样，若在用送风机外罩110覆盖送风风扇107的状态下将冷气送风到冷藏室101，则送风机外罩110的内部的压力损失会变大。如此，存在如下课题：提供到冷藏室101的冷气的风量会不充分，为了将冷藏室101冷却到给定的温度，送风风扇107需要长时间运转，有违节能。
另外，仅用送风机外罩110覆盖开口部106有可能造成气密性不足。在此情况下，在冷却时，由于从送风机外罩110的周围漏出冷气，因此难以担保贮藏库的温度调节的正确性。另外，在除霜时，由于从送风机外罩110的周围泄漏暖风，因此可以预料无法高效地除霜。
发明内容
为至少解决所述技术问题之一，所述其目的在于，提供确保了用遮蔽装置将冷却室的开口部关闭时的气密性的冰箱。
为实现所述发明目的之一，本发明一实施方式提供了一种冰箱，具备：冷却器，其将经由提供风路提供到贮藏室的空气进行冷却；冷却室，其配设有所述冷却器，并形成与所述贮藏室相连的送风口；送风机，其将从所述送风口提供的所述空气向所述贮藏室送风；和遮蔽装置，其至少部分封堵所述送风口，所述遮蔽装置具有：送风机外罩，其从所述冷却室的外侧覆盖所述送风机，并在确保所述空气向所述贮藏室流动的开口部的基础上封堵所述送风口；引导风道，其在所述送风机外罩封堵所述送风口的状态下将所述送风机外罩的所述开口部与所述提供风路连通，在所述送风机外罩封堵所述送风口的状态下，所述引导风道的端部与所述送风机外罩的端部重叠。
作为本发明一实施方式的进一步改进，所述送风机外罩的所述端部的侧面部呈宽度随着去往所述送风机而变宽的倾斜形状，所述引导风道的所述端部的侧面部呈宽度随着去往所述送风机而变宽的倾斜形状。
作为本发明一实施方式的进一步改进，所述送风机外罩的所述侧面部的倾斜角与所述引导风道的所述侧面部的倾斜角实质相等。
作为本发明一实施方式的进一步改进，通过使所述送风机外罩的所述端部的内侧部分成为高低差形状来形成高低差部，在所述送风机外罩封堵所述送风口的状态下，所述引导风道的所述端部与所述送风机外罩的所述高低差部抵接。
作为本发明一实施方式的进一步改进，所述送风机外罩的所述端部的内侧的宽度尺寸大于所述引导风道的所述端部的外侧的宽度尺寸。
与现有技术相比，本发明具有以下有益技术效果：本发明一实施方式提供了一种冰箱，具备：冷却器，其将经由提供风路提供到贮藏室的空气进行冷却；冷却室，其配设有所述冷却器，并形成与所述贮藏室相连的送风口；送风机，其将从所述送风口提供的所述空气向所述贮藏室送风；和遮蔽装置，其至少部分封堵所述送风口，所述遮蔽装置具有：送风机外罩，其从所述冷却室的外侧覆盖所述送风机，并在确保所述空气向所述贮藏室流动的开口部的封堵所述送风口；和引导风道，其在所述送风机外罩封堵所述送风口的状态下将所述送风机外罩的所述开口部和所述提供风路连通，在所述送风机外罩封堵所述送风口的状态下，所述引导风道的端部与所述送风机外罩的端部重叠。因此，通过使送风机外罩的端部与引导风道的端部重叠，从而在送风机外罩封堵送风口的状态下，能抑制空气从送风机外罩与引导风道之间泄漏到外部。
作为本发明一实施方式的进一步改进，所述送风机外罩的所述端部的侧面部呈宽度随着去往所述送风机而变宽的倾斜形状，所述引导风道的所述端部的侧面部呈宽度随着去往所述送风机而变宽的倾斜形状。因此，通过送风机外罩的端部的侧面部是倾斜面，进而，引导风道的端部的侧面部是倾斜面，从而在送风机外罩与引导风道的连接部，送风机外罩的移动动作不会被引导风道阻碍，能提高送风机外罩封堵送风口时的气密性。
作为本发明一实施方式的进一步改进，所述送风机外罩的所述侧面部的倾斜角和所述引导风道的所述侧面部的倾斜角实质相等。因此，在使送风机外罩移动得接近于送风口时，通过使送风机外罩的侧面部的倾斜角与引导风道的端部的倾斜角实质相等，从而两者的侧面部彼此不会干扰，能平稳地进行送风机外罩的移动。
作为本发明一实施方式的进一步改进，通过使所述送风机外罩的所述端部的内侧部分成为高低差形状来形成高低差部，在所述送风机外罩封堵所述送风口的状态下，所述引导风道的所述端部与所述送风机外罩的所述高低差部抵接。因此，通过引导风道的端部与送风机外罩的高低差部抵接，能进一步提高引导风道与送风机外罩的连接部中的气密性。
作为本发明一实施方式的进一步改进，所述送风机外罩的所述端部的内侧的宽度尺寸大于所述引导风道的所述端部的外侧的宽度尺寸。因此，通过使送风机外罩的端部的内侧与引导风道的端部的外侧分开一定程度，能使送风机外罩的开闭动作平稳。
附图说明
图1是表示本发明的实施方式所涉及的冰箱的外观的主视图。
图2是表示本发明的实施方式所涉及的冰箱的内部构成的侧方截面图。
图3是表示本发明的实施方式所涉及的冰箱的冷却室附近的构造的侧方截面图。
图4是表示本发明的实施方式所涉及的冰箱所采用的遮蔽装置的分解立体图。
图5是表示本发明的实施方式所涉及的冰箱所采用的遮蔽装置的图，(A)是表示非关闭状态的遮蔽装置的立体图，(B)是表示关闭状态的遮蔽装置的立体图。
图6是表示本发明的实施方式所涉及的冰箱所采用的遮蔽装置的图，(A)是表示非关闭状态的遮蔽装置的立体图，(B)以及(C)是表示该状态下的遮蔽装置的截面图。
图7是表示本发明的实施方式所涉及的冰箱所采用的遮蔽装置的图，(A)是概略表示遮蔽装置的截面图，(B)是放大表示遮蔽装置的主要部分的放大截面图。
图8是表示本发明的实施方式所涉及的冰箱所采用的遮蔽装置的图，(A)以及(B)是表示关闭状态的遮蔽装置的截面图，(C)是放大表示该状态下的遮蔽装置的主要部分的放大截面图。
图9是表示背景技术所涉及的冰箱的侧方截面图。
图10是表示背景技术所涉及的冰箱中所采用的送风机外罩的立体图。
具体实施方式
以下基于附图来详细说明本发明的实施方式所涉及的冰箱1。在以下的说明中，对同一 构件原则上标注同一标号，省略重复的说明。进而在以下的说明中适当使用上下前后左右的各方向，所谓左右，表示从前方观察冰箱1的情况下的左右。
图1是表示本形态的冰箱1的概略构造的主视外观图。如图1所示那样，冰箱1具备作为主体的隔热箱体2，在该隔热箱体2的内部形成贮藏食品等的贮藏室。作为该贮藏室，最上段是冷藏室3，其下段左侧是制冰室4，右侧是上段冷冻室5，进而其下段是下段冷冻室6，然后最下段是保鲜室7。另外，制冰室4、上段冷冻室5以及下段冷冻室6都是冷冻温度域的贮藏室，以下的说明也有将它们总称为冷冻室4A的情况。
隔热箱体2的前面开口，在与所述各贮藏室对应的所述开口开闭自由地设有各个隔热门8至12。隔热门8a、8b将冷藏室3的前面分割封堵，隔热门8a的左上下部以及隔热门8b的右上下部旋转自由地被支承在隔热箱体2。另外，隔热门9至12各自与收纳容器一体地组合，向冰箱1的前方拉出自由地被支承在隔热箱体2。
图2是表示冰箱1的概略构造的侧方截面图。如图2所示那样，冰箱1的主体即隔热箱体2由前面开口的钢板制的外箱2a、和在该外箱2a内具有间隙地配设且前面开口的合成树脂制的内箱2b构成。在外箱2a与内箱2b的间隙填充发泡发泡聚氨酯制的隔热件2c。另外，各隔热门8至12也采用与隔热箱体2同样的隔热构造。
冷藏室3与位于其下段的冷冻室4A之间被隔热分隔壁28分隔。冷冻室4A的内部的制冰室4与上段冷冻室5之间被在此未图示的分隔壁分隔。另外，制冰室4以及上段冷冻室5与设于其下段的下段冷冻室6之间冷却的空气即冷气流通自由地连通。并且冷冻室4A与保鲜室7之间被隔热分隔壁29划分。
在冷藏室3的背面形成冷藏室提供风路14，其被合成树脂制的分隔体45区划，作为向冷藏室3提供冷气的提供风路。在冷藏室提供风路14形成使冷气流向冷藏室3的吹出口17。另外，在冷藏室提供风路14设有冷藏室风挡25。冷藏室风挡25是被电动机等驱动的开闭自由的风挡，控制提供给冷藏室3的冷气的流量来将冷藏室3的内部的温度维持得合适。
在在冷冻室4A的里侧形成使被冷却器32冷却的冷气流向冷冻室4A的冷冻室提供风路15。在冷冻室提供风路15的更里侧形成冷却室13，在其内部配置用于冷却在冰箱内循环的空气的蒸发器即冷却器32。
冷却器32经由冷媒配管连接压缩机31、未图示的放热器、未图示的毛细管即膨胀单元，来构成蒸气压缩式的冷冻循环回路。
冰箱1具备未图示的控制装置，该控制装置根据来自未图示的温度传感器或计时器的输入来执行给定的运算处理，控制压缩机31、送风机35、遮蔽装置50、冷藏室风挡25等的各构成机器。
图3是表示冰箱1的冷却室13附近的构造的侧方截面图。冷却室13在隔热箱体2的内部设于冷冻室提供风路15的里侧。冷却室13与冷冻室4A之间被合成树脂制的分隔体46分隔。
形成于冷却室13的前方的冷冻室提供风路15是形成于分隔体46与组装在其前方的合成树脂制的前面外罩47之间的空间，成为流过被冷却器32冷却的冷气的风路。在前面外罩47形成向冷冻室4A吹出冷气的开口即吹出口18。
在下段冷冻室6的下部背面形成使空气从冷冻室4A返回冷却室13的返回口23。并且在冷却室13的下方形成返回口13b，其与该返回口23相连，将来自各贮藏室的回归冷气向冷却室13的内部吸入。
另外，在冷却器32的下方设有除霜加热器33，作为将附着于冷却器32的霜融化去除的除霜单元。除霜加热器33是电阻加热式的加热器。
在分隔体46的上部形成与各贮藏室相连的开口即送风口13a。送风口13a是使被冷却器32冷却的冷气流动的开口，使冷却室13和冷藏室提供风路14以及冷冻室提供风路15连通。在送风口13a，朝向冷冻室4A等配设送出冷气的送风机35。
送风机35是具备旋转式的风扇37和形成大致圆筒形状的开口即风洞36a的罩壳36的轴流送风机。罩壳36安装在冷却室13的送风口13a。
另外，在冷却室13的送风口13a的外侧设置遮蔽装置50，其具备用于封堵送风口13a的送风机外罩51。在遮蔽装置50，其支承基体53例如紧贴送风机35的罩壳36而安装。另外配置使送风机外罩51的上端开口和冷藏室提供风路14连通的引导风道59。
送风机外罩51的与冷却室13对置的面成形为凹形状。由此，送风机外罩51不会与比罩壳36更向喷出侧突出的风扇37接触，能在风洞36a的外侧与支承基体53抵接，封堵送风口13a。另外，遮蔽装置50被遮蔽装置外罩49从前方覆盖。在遮蔽装置50与遮蔽装置外罩49之间形成容许送风机外罩51的向前后方向的移动的间隙。
参考图4来说明所述冰箱1所采用的遮蔽装置50的构成。图4是在前后方向上分解表示构成遮蔽装置50的各构件的立体图。
遮蔽装置50具有：覆盖所述风扇37的送风机外罩51；将送风机外罩51安装在冰箱1主体的支承基体53；和将送风机外罩51和冰箱主体侧的风路连接的引导风道59。遮蔽装置50的主要功能在于，通过使所述风扇37适当成为非关闭状态或者关闭状态，来将风扇37旋转而送风的冷风提供到期望的贮藏室。另外，通过使遮蔽装置50成为关闭状态，抑制了冷却器32的除霜行程中产生的暖风流入冷冻室4A等。在此，所谓暖风，是被除霜加热器33加热的空气。
送风机外罩51将合成树脂材概略注塑成形成盖形状而得到，具有主视观察下呈现大致四角形状的主面部69和从主面部69的周边缘部向后方侧延伸的侧面部70。将主面部69的中央附近圆形地贯通来形成螺丝孔63，使螺丝孔63的内侧侧面螺旋状凹陷来形成螺槽。使送风机外罩51上侧的侧面部70开口来形成开口部64。开口部64在送风机外罩51封堵送风机35的状况下与所述引导风道59的开口部65连结。在送风机外罩51的左下角部附近以及右上角部附近形成用于使后述的导向销54插通的支承孔62。
送风机外罩51的作用如上述那样，在于将配置于冷却室13的送风口13a的风扇37实质封堵。另外，由于在送风机外罩51的上部形成开口部64，因此在送风机外罩51封堵风扇37的状况下，也能将被风扇37送风的冷气经由开口部64提供到冷藏室3侧。
如后述那样，为了使送风机外罩51的开闭动作顺畅，在形成开口部64的送风机外罩51的上端部，侧面部70呈现出宽度随着去往配置送风机35的后方而变宽的倾斜形状。另外，为了进一步提高关闭时的气密性，在形成开口部64的送风机外罩51的上端部，在送风机外罩51的主面部69以及侧面部70形成高低差部75。相关的构成后述。
驱动轴61呈现大致圆筒形状，设有使1其侧面的一部分螺旋状连续凸起的未图示的螺纹。在此，形成于驱动轴61的侧面的螺纹、和形成于送风机外罩51的螺丝孔63的侧面的螺槽在使用状况下下螺合。在驱动轴61的内部内置未图示的步进电动机，以该电动机的驱动力而驱动轴61旋转给定角度。若驱动轴61从例如前方观察顺时针旋转，则送风机外罩51从支承基体53离开，在送风机外罩51与支承基体53之间形成间隙而成为非关闭状态。因而被未图示的风扇37送风的冷气经由该间隙提供到冷冻室4A。
另一方面，若驱动轴61例如从前方观察逆时针旋转，则送风机外罩51向支承基体53侧移动，送风机外罩51的侧面部70紧贴到支承基体53的框部71，不形成所述间隙而成为关闭状态。因而能将被未图示的风扇37送风的冷气不是提供到冷冻室4A，而是经由所述开口部64以及引导风道59提供到冷藏室3。
支承基体53主要具有：俯视观察下呈四角形的框形状的框部71；支承配置于中央部分的驱动轴61的轴支承部72；将轴支承部72和框部71的角部连结的支承架60；和立设于框部71的左下角部以及右上角部的导向销54。框部71是机械性支承支承基体53的整体的框状的板构件，在其四角附近设有在支承基体53的厚度方向上贯通的多个孔部73。如图4所示那样，经由贯通孔部73的螺丝等的固定单元而包含框部71的遮蔽装置50被固定在分隔体46。
导向销54是竖立设置于与送风机外罩51的支承孔62对应的部位的圆柱状的构件。各个导向销54通过插入到支承孔62并滑动而被引导沿着送风机外罩51的前后方向的移动。
引导风道59具有在是用送风机外罩51封堵送风口13a(图3)的关闭状态时将送风机外罩51的开口部64和冷藏室提供风路14连通的功能。引导风道59由注塑成形的合成树脂构成，有面向前方的主面部40和面向左右两方向的侧面部41构成。形成于引导风道59的下端的开口部65配置在与关闭状态的送风机外罩51的开口部64一致的部位。因而向下方开口的引导风道59的开口部65和向上方开口的送风机外罩51的开口部64成为大致相同的形状以及大小。在此未图示的引导风道59的后方侧的开口与图3所示的入口部14a接续。另外，引导风道59的侧面部41成为向配置送风机35的后方而宽度变宽的倾斜形状，相关事项后述。
参考图5来进一步详述所述遮蔽装置50的构成。图5(A)是表示非关闭状态的遮蔽装 置50的立体图，图5(B)是表示关闭状态的遮蔽装置50的立体图。在此，所谓非关闭状态，是指送风机外罩51为封堵风扇37的状态，所谓关闭状态，是指送风机外罩51封堵风扇37的状态。
参考图5(A)，在上述非关闭状态下，通过驱动轴61的驱动力而送风机外罩51向前方移动。因而，送风机外罩51的侧面部70的后端与支承基体53分离，在送风机外罩51与支承基体53之间形成间隙。在该状态下，形成于送风机外罩51的上部的开口部64不与形成于引导风道59的下部的开口部65连通。若在该状态下使图4所示的风扇37旋转而送风，则送风的冷气经由所述间隙而提供到冷冻室4A。
在使送风机外罩51从非关闭状态移转到关闭状态时，使驱动轴61例如从前方观察逆时针旋转。由此，送风机外罩51向后方移动，送风机外罩51的侧面部70的后方端部与支承基体53的前面抵接。在支承基体53的导向销54插通于送风机外罩51的支承孔62，送风机外罩51进行开闭时，导向销54在支承孔62的内部滑动。另外，导向销54以及支承孔62配置于送风机外罩51的对置的角部附近。因而送风机外罩51的开闭动作通过导向销54在支承孔62的内部滑动而稳定进行。
在此，使形成于送风机外罩51的上端的开口部64的周围向上方突出来形成重叠部66。另外，使形成于引导风道59的下端的开口部65的周围向下方突出来形成重叠部67。因此，若使送风机外罩51成为关闭状态，则送风机外罩51的重叠部66和引导风道59的重叠部67重叠。在此，送风机外罩51的重叠部66从外侧覆盖引导风道59的重叠部67。通过相关的构造，在使送风机外罩51为关闭状态的情况下，由于送风机外罩51与引导风道59的接合部分气密性变高，因此抑制了冷气从该接合部分泄漏。
参考图5(B)，若通过使驱动轴61旋转来使送风机外罩51向支承基体53侧移动，则送风机外罩51的侧面部70的后端与支承基体53的表面抵接。因此，送风机外罩51与支承基体53的间隙实质消失，不再从两者之间泄漏冷气或暖风。另外，如上述那样，由于送风机外罩51的上端部分与引导风道59的下端部分重叠，因此还抑制了从送风机外罩51与引导风道59之间向外部泄漏冷气。因此，参考图3，由于送风口13a被送风机外罩51封堵，因此被风扇37送风的冷气不提供到冷冻室4A。被风扇37送风的冷气经由送风机外罩51以及引导风道59而送风到冷藏室3。
参考图6到图8来详述所述遮蔽装置50的构成。图6是表示非关闭状态的遮蔽装置50的图，图7是详细表示构成遮蔽装置50的送风机外罩51以及引导风道59的构成的图，图8是表示关闭状态的遮蔽装置50的图。
参考图6来说明非关闭状态的遮蔽装置50。图6(A)是表示遮蔽装置50立体图，图6(B)是表示图6(A)的α-α截面的遮蔽装置50的截面图，图6(B)是表示图6(A)的β-β截面的遮蔽装置50的截面图。
如图6(A)所示那样，在非关闭状态下，通过驱动轴61的驱动力而送风机外罩51成 为被向前方推出的状态，换言之，送风机外罩51从图3所示的风扇37离开而配置。另外，通过如上述那样使送风机外罩51的上端部内侧向外侧矩形地凹陷来形成高低差部75。高低差部75与图6(A)所示的送风机外罩51的主面部69的上端部以及侧面部70的上端部连续形成。另外，上下方向上的高低差部75的位置配置得与引导风道59的下端部同等的水平。
参考图6(B)来进行详述，引导风道59的下端配置在送风机外罩51的高低差部75的下端的上方且高低差部75的上端的下方。如此，如后述那样，在使送风机外罩51向后方移动来做出关闭状态时，送风机外罩51的高低差部75与引导风道59的下端部抵接，能提高送风机外罩51与引导风道59之间的气密性。
参考图6(C)，送风机外罩51具有：形成于左方侧的侧面部70A；和形成于右方侧的侧面部70B。左方侧的侧面部70A朝向后方并向左方侧倾斜，右方侧的侧面部70B朝向后方并向右方侧倾斜。侧面部70A向左方侧倾斜的倾斜角和侧面部70B向右方侧倾斜的倾斜角大致相同。
同样地，引导风道59具有：形成于左方侧的侧面部41A；和形成于右方侧的侧面部41B。形成于左方侧的侧面部41A朝向后方并向左方侧倾斜，形成于右方侧的侧面部41B朝向后方并向右方侧倾斜。侧面部41A向左方侧倾斜的倾斜角和侧面部41B向右方侧倾斜的倾斜角大致相同。
如上述那样，通过使送风机外罩51的侧面部70A、70B以及引导风道59的侧面部41A、40B成为向外侧扩展的倾斜面，在开闭送风机外罩51时，送风机外罩51的移动不会被引导风道59阻碍。因而能圆滑地进行送风机外罩51的开闭动作。另外，通过送风机外罩51的侧面部70A等以及引导风道59的侧面部41等是倾斜面，能经由两者的间隙良好地送风冷气。
参考图7来详述构成遮蔽装置50的送风机外罩51以及引导风道59的构成。图7(A)是图6(A)的β-β截面的截面图，图7(B)是将β-β截面的一部分放大的放大截面图。
参考图7(A)，在将送风机外罩51与引导风道59连接的连接部，送风机外罩51的内侧的宽度尺寸大于引导风道59的外侧的宽度尺寸。具体而言，送风机外罩51的内侧的前方端部的宽度L10长于引导风道59的外侧的前方端部的宽度L13。进而，送风机外罩51的内侧的后方端部的宽度L11长于引导风道59的外侧的后方端部的宽度L14。如此，在用送风机外罩51封堵引导风道59时，送风机外罩51的内面和引导风道59的外面不是紧贴，而是在两者之间形成微细的间隙。因而送风机外罩51和引导风道59不会相互啮合，能平稳地进行送风机外罩51的进退动作。
参考图7(B)，送风机外罩51的侧面部70A从前后方向倾斜的倾斜角θ1例如为5度以上10度以下，代表地例如设为5度。同样地，引导风道59的侧面部41A从前后方向倾斜的倾斜角θ2例如为5度以上10度以下，代表地例如设为5度。另外，送风机外罩51的侧面部70A的倾斜角θ1和引导风道59的侧面部41A的倾斜角θ2相同或大致相同。
相关的事项在遮蔽装置50的右方侧也同样，参考图7(A)，送风机外罩51的侧面部70B从前后方向倾斜的倾斜角和引导风道59的侧面部41B从前后方向倾斜的倾斜角相同或大致相同。
通过使所述倾斜角θ1和倾斜角θ2同等，送风机外罩51的侧面部70A和引导风道59的侧面部41A实质成为平行。因而，抑制了伴随送风机外罩51的进退动作而送风机外罩51的侧面部70A和引导风道59的侧面部41A干扰，能平稳地进行送风机外罩51的动作。通过使倾斜角θ1以及倾斜角θ2为5度以上，能使抑制送风机外罩51的侧面部70A和引导风道59的侧面部41A干扰的效果显著。通过使倾斜角θ1以及倾斜角θ2为10度以下，能抑制送风机外罩51以及引导风道59向左右方向的过度的扩展。
在图8示出成为关闭状态的遮蔽装置50。图8(A)是关闭状态的遮蔽装置50的α-α截面(参考图6(A))的截面图，图8(B)是关闭状态的遮蔽装置50的β-β截面(参考图6(A))的截面图，图8(B)是将β-β截面中的截面部分放大的放大截面图。
参考图8(A)，通过使驱动轴61向给定方向旋转来使送风机外罩51向后方移动，使送风机外罩51的后方侧端部与支承基体53的框部71的前面侧的主面抵接。由此，在此未图示的风扇37以及送风口13a被送风机外罩51关闭，抑制了冷气或暖风从送风机外罩51与支承基体53的间隙进入。
另外，形成于送风机外罩51的上端的高低差部75的后方侧面与引导风道59的下端的前方侧面抵接。如图6(A)所示那样，高低差部75在送风机外罩51的上端与主面部69以及侧面部70的两方连续而形成。因而在引导风道59的下端，引导风道59的主面部40以及侧面部70的外侧面基于无间隙地与送风机外罩51的高低差部75的内侧面抵接。由此抑制了冷气从送风机外罩51与引导风道59的间隙漏出到外部。
如图8(B)所示那样，在送风机外罩51与引导风道59的连接部，送风机外罩51的主面部69的后方主面与引导风道59的主面部77的前方主面抵接或者接近。另外，形成于送风机外罩51的左右两侧侧面部70A、70B与形成于引导风道59的左右两侧的侧面部41A、41B抵接或者接近。具体而言，如图8(C)所示那样，形成于送风机外罩51的左方侧的侧面部70A的内侧面与形成于引导风道59的左方侧的侧面部41A的外侧面抵接或者接近。相关的事项关于形成于送风机外罩51的右方侧的侧面部70B以及形成于引导风道59的右方侧的侧面部41B也是同样。因此能以高的等级确保送风机外罩51与引导风道59的连接部中的气密性。
接下来，再度参考图2到图6来说明具备以上说明的构成的冰箱1的动作。
首先说仅将冷藏室3冷却的运转。如图2所示那样，基于控制装置的指示使压缩机31运转，打开冷藏室风挡25，使送风机35运转。在此情况下，如图5(B)所示那样，由于遮蔽装置50成为关闭状态，因此抑制了冷气从送风机外罩51与引导风道59之间漏出，能高效地将冷藏室3冷却。
参考图3，被冷却器32冷却的空气依次通过冷却室13的送风口13a、送风机35、送风机外罩51的内部空间、引导风道59、冷藏室风挡25、冷藏室提供风路14以及吹出口17，提供给冷藏室3。由此，能将贮藏在冷藏室3的内部的食品等冷却保存在合适的温度下。
并且，提供到冷藏室3的内部的循环冷气经由在此未图示的返回口以及回归风路返回冷却室13的内部。在那里再度被冷却器32冷却。
接下来说明仅将冷冻室4A冷却的运转。如图3所示那样，基于控制装置的指示使压缩机31运转，将冷藏室风挡25关闭，使送风机35运转，打开送风机外罩51，由此能进行冷冻室4A的冷却。详细地，送风机外罩51成为图5(A)那样从支承基体53离开的非关闭状态。由此，被冷却器32冷却的空气通过配设于冷却室13的送风口13a的送风机35而被送出，经由送风机外罩51与支承基体53的间隙，依次通过冷冻室提供风路15以及吹出口18，仅提供给冷冻室4A。
其结果，能将贮藏于冷冻室4A的内部的食品等冷却保存在合适的温度下。然后冷冻室4A内部的空气通过形成于下段冷冻室6的深处的返回口23经由冷却室13的返回口13b流向冷却室13的内部。
接下来，参考图2来说明向保鲜室7的冷气的提供。通过打开未图示的保鲜室风挡，由送风机35送出的空气的一部分流向未图示的保鲜室提供风路冰箱保鲜室7喷出。由此能将保鲜室7内冷却。然后，在保鲜室7循环的冷气从返回口24依次经过保鲜室回归风路21以及返回口13b，返回冷却室13。
接下来，参考图3来说明将冷藏室3以及冷冻室4A两方冷却的动作。使在此情况下的送风机外罩51与支承基体53分开的长度短于仅将冷冻室4A冷却的情况下上述两者分开的长度。例如，与仅将冷冻室4A冷却的情况比较，使送风机外罩51和支承基体53分开的长度成为一半程度。另外，冷藏室风挡25成为开状态。若在该状态下将被冷却器32冷却的冷气用风扇37送风，送风的冷气的一部分从送风机外罩51与支承基体53的间隙提供到冷冻室4A，冷气的其他一部分经由引导风道59、冷藏室风挡25、冷藏室提供风路14提供到冷藏室3。
接下来，参考图2、图3以及图5来说明除霜运转时的动作。若持续冷却运转，则霜会附着在冷却器32的空气侧传热面，妨碍传热，封堵空气流路。为此开始用于去除附着于冷却器32的霜的除霜冷却运转或者除霜运转。
首先说明利用附着于冷却器32的霜的潜热来进行冷藏室3的冷却的除霜冷却运转。在进行除霜冷却运转的情况下，基于控制装置的指示来停止压缩机31的运转，如图5(B)所示那样，成为关闭遮蔽装置50的关闭状态。然后基于控制装置的指示打开冷藏室风挡25，使送风机35运转。由此，在冷藏室3与冷却室13之间使空气循环，能通过该循环空气融化附着于冷却器32的霜。即，不进行除霜加热器33的加热就能进行除霜。同时，不使压缩机31运转就能利用霜的融解热来进行冷藏室3的冷却。
在通常的除霜运转中，基于控制装置的指示来停止压缩机31，在除霜加热器33通电，除霜加热器33发热，使冷却室13变暖，来将附着于冷却器32的霜融化。这时，遮蔽装置50成为关闭状态，用送风机外罩51封堵送风口13a，将冷藏室风挡25关闭。由此能防止通过除霜加热器33变暖的冷却室13内的暖风向冷藏室提供风路14以及冷冻室提供风路15流出。在本形态中，抑制了暖风从送风机外罩51与引导风道59之间进入。因此热能的损失少，能高效地进行除霜行程，减低除霜所涉及的时间以及能量。
若冷却器32的除霜完成，则基于控制装置的指示停止除霜加热器33的通电，启动压缩机31，使送风机外罩51向前方移动，由此使遮蔽装置50成为非关闭状态，开始冷冻循环所带来的冷却。
以上是与本形态所涉及的冰箱1的动作相关的说明。
在本形态中，由于通过上述构成使遮蔽装置50的气密性提升，因此在将各贮藏库冷却的冷却运转时，冷气不会从遮蔽装置50漏出，因此提升了冷却效率而能使各贮藏库处于期望的库内温度带。进而，在除霜时，暖风不会从遮蔽装置50进入，抑制了除霜行程中的热能的损失从而缩短了除霜时间，能防止由进入的暖风加热贮藏室。
本发明并不限定于上述实施方式，此外能在不脱离本发明的要旨的范围内实施变更。
标号说明
1冰箱 2隔热箱体 2a外箱 2b内箱
2c隔热件 3冷藏室 4制冰室 4A冷冻室
5上段冷冻室 6下段冷冻室 7保鲜室 8、8a、8b隔热门
9隔热门 10隔热门 11隔热门 12隔热门
13冷却室 13a送风口 13b返回口 14冷藏室提供风路
14a入口部 15冷冻室提供风路 17吹出口 18吹出口
21保鲜室回归风路 23返回口 24返回口 25冷藏室风挡
28隔热分隔壁 29隔热分隔壁 31压缩机 32冷却器
33除霜加热器 35送风机 36罩壳 36a风洞
37风扇 40主面部 41、41A、41B侧面部 45分隔体
46分隔体 47前面外罩 49遮蔽装置外罩 50遮蔽装置
51送风机外罩 53支承基体 54导向销 59引导风道
60支承架 61驱动轴 62支承孔 63螺丝孔
64开口部 65开口部 66重叠部 67重叠部
69主面部 70、70A、70B侧面部 71框部 72轴支承部
73孔部 75高低差部 77主面部 100冰箱
101冷藏室 102冷冻室 103保鲜室 104冷却室
105区划壁 106开口部 107送风风扇 108冷却器
109风路 110送风机外罩 111凹部 113开口部
114风挡      

Claims (10)

  1. 一种冰箱，其特征在于，具备：
    冷却器，其将经由提供风路提供到贮藏室的空气进行冷却；
    冷却室，其配设有所述冷却器，并形成与所述贮藏室相连的送风口；
    送风机，其将从所述送风口提供的所述空气向所述贮藏室送风；和
    遮蔽装置，其至少部分封堵所述送风口，
    所述遮蔽装置具有：
    送风机外罩，其从所述冷却室的外侧覆盖所述送风机，并在确保所述空气向所述贮藏室流动的开口部的基础上封堵所述送风口；和
    引导风道，其在所述送风机外罩封堵所述送风口的状态下将所述送风机外罩的所述开口部与所述提供风路连通，
    在所述送风机外罩封堵所述送风口的状态下，所述引导风道的端部与所述送风机外罩的端部重叠。
  2. 根据权利要求1所述的冰箱，其特征在于，
    所述送风机外罩的所述端部的侧面部呈宽度随着去往所述送风机而变宽的倾斜形状，所述引导风道的所述端部的侧面部呈宽度随着去往所述送风机而变宽的倾斜形状。
  3. 根据权利要求2所述的冰箱，其特征在于，
    所述送风机外罩的所述侧面部的倾斜角与所述引导风道的所述侧面部的倾斜角实质相等。
  4. 根据权利要求1所述的冰箱，其特征在于，
    通过使所述送风机外罩的所述端部的内侧部分成为高低差形状来形成高低差部，
    在所述送风机外罩封堵所述送风口的状态下，所述引导风道的所述端部与所述送风机外罩的所述高低差部抵接。
  5. 根据权利要求2所述的冰箱，其特征在于，
    通过使所述送风机外罩的所述端部的内侧部分成为高低差形状来形成高低差部，
    在所述送风机外罩封堵所述送风口的状态下，所述引导风道的所述端部与所述送风机外罩的所述高低差部抵接。
  6. 根据权利要求3所述的冰箱，其特征在于，
    通过使所述送风机外罩的所述端部的内侧部分成为高低差形状来形成高低差部，
    在所述送风机外罩封堵所述送风口的状态下，所述引导风道的所述端部与所述送风机外罩的所述高低差部抵接。
  7. 根据权利要求1所述的冰箱，其特征在于，
    所述送风机外罩的所述端部的内侧的宽度尺寸大于所述引导风道的所述端部的外侧的宽度尺寸。
  8. 根据权利要求2所述的冰箱，其特征在于，
    所述送风机外罩的所述端部的内侧的宽度尺寸大于所述引导风道的所述端部的外侧的宽度尺寸。
  9. 根据权利要求3所述的冰箱，其特征在于，
    所述送风机外罩的所述端部的内侧的宽度尺寸大于所述引导风道的所述端部的外侧的宽度尺寸。
  10. 根据权利要求4所述的冰箱，其特征在于，
    所述送风机外罩的所述端部的内侧的宽度尺寸大于所述引导风道的所述端部的外侧的宽度尺寸。
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