WO2014201893A1 - 电冰箱 - Google Patents

电冰箱 Download PDF

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Publication number
WO2014201893A1
WO2014201893A1 PCT/CN2014/074626 CN2014074626W WO2014201893A1 WO 2014201893 A1 WO2014201893 A1 WO 2014201893A1 CN 2014074626 W CN2014074626 W CN 2014074626W WO 2014201893 A1 WO2014201893 A1 WO 2014201893A1
Authority
WO
WIPO (PCT)
Prior art keywords
air passage
compartment
vegetable compartment
heat insulating
vegetable
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/074626
Other languages
English (en)
French (fr)
Inventor
山川贵志
青木均史
仓谷利治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haier Group Corp
Qingdao Haier Co Ltd
Haier Asia International Co Ltd
Original Assignee
Haier Group Corp
Qingdao Haier Co Ltd
Haier Asia International Co Ltd
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 Haier Group Corp, Qingdao Haier Co Ltd, Haier Asia International Co Ltd filed Critical Haier Group Corp
Publication of WO2014201893A1 publication Critical patent/WO2014201893A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F25D17/06—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
    • F25D17/062—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 in household refrigerators
    • F25D17/065—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 in household refrigerators with compartments at different temperatures
    • 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
    • F25D2317/067—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 air ducts

Definitions

  • the present invention relates to a refrigerator for cooling and storing foods and the like in a storage compartment, and more particularly to a refrigerator having a supply air passage for supplying air cooled by a cooler to a vegetable compartment.
  • a refrigerator-type center-type refrigerator in which a refrigerator compartment is disposed in an upper layer, a freezer compartment is disposed in a middle layer, a vegetable compartment is disposed in a lower layer, and a cooler is disposed in an inner portion of the freezer compartment disposed in the middle layer. Cooling room.
  • the vegetable compartment supply air passage is sometimes formed in the inner side portion of the freezing compartment for supplying the air cooled by the cooler to the vegetable compartment (for example, Patent Document 1, Patent Literature 2).
  • the refrigerator disclosed in Patent Document 1 includes a vegetable compartment supply air passage (described as a vegetable compartment air supply duct in the same document), and the vegetable compartment supply air passage is connected to a refrigerator compartment located at the uppermost layer of the refrigerator and a vegetable compartment located at the lowermost floor. , direct the cold air passing through the cold room to the vegetable room.
  • a partition (described in the document as an evaporator cover) and an inner tank form a cooling chamber (which is described in the literature as a cold air supply duct).
  • the vegetable compartment supply air passage (vegetable room supply duct) of this document is formed in the inner side of the freezer compartment, and is disposed adjacent to the cooling weir (cold air supply duct).
  • the refrigerator disclosed in Patent Document 2 has a vegetable compartment supply air passage (described as a cold air passage in this document), and the vegetable compartment supply air passage directly supplies the air cooled by the cooler to the vegetable compartment without passing through Cold storage room.
  • the vegetable compartment supply air passage (cold air passage) of this document is a separator that forms a cooling chamber (described as a back surface member in this document) and a separator that forms a freezer compartment supply air passage in front of the cooling chamber (described in the document as a cover) Member) formed.
  • a separator that forms a cooling chamber (described as a back surface member in this document) and a separator that forms a freezer compartment supply air passage in front of the cooling chamber (described in the document as a cover) Member) formed.
  • the partition (back member) forming the cooling chamber The concave portion extending in the upward and downward directions covers the concave portion by the front cover (cover member) to form a vegetable chamber supply air passage (; cold air passage:).
  • the refrigerator disclosed in this document is provided with a damper device that controls cold air which is sent to the refrigerating compartment and the vegetable compartment.
  • the damper device is housed in a rear projection surface of the freezer compartment and assembled in a partition (back member) forming a cooling chamber.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2011-5290 Patent Publication 7 (on July to 7, FIG. 2)
  • Patent Document 2 Japanese Patent Laid-Open No. 2008-5790 Patent Publication 2 (on page 6 ⁇ 9, FIG. 7)
  • the cooling chamber and the vegetable compartment are simultaneously formed between the integrally formed separator and the inner box, it is easy to divide the vegetable compartment due to the dimensional error of the separator or the deformation of the inner box which is foamed with polyurethane.
  • a gap is formed between the supply air passage and the seal portion of the cooling chamber (the abutment portion of the separator and the inner tank).
  • the operation of the blower causes the cooling chamber to be a negative pressure, and since the pressure of the vegetable chamber supply air passage is higher than the pressure of the cooling chamber, cold air is supplied from the vegetable compartment through the gap. The possibility that the wind path is attracted to the cooling room and the vegetable room is poorly cooled.
  • the refrigerant supply air passage and the vegetable compartment supply air passage are simultaneously formed by the integrally formed separator and the integrally formed front cover as in the case of the refrigerator disclosed in the patent document 2, it is difficult to ensure the supply air for freezing.
  • the airtightness between the road and the vegetable room is supplied to the wind road. That is, because it is difficult to screw Since the sealing portion (the abutting portion of the separator and the front cover) that supplies the air passage to the freezing supply air passage and the vegetable compartment is divided, the portion is likely to have a gap between the partition and the front cover.
  • the present invention has been made in view of the above circumstances, and it is an object of the invention to provide a refrigerator capable of maintaining good assemblability and improving the airtightness of a vegetable compartment supply air passage and appropriately maintaining the temperature of the vegetable compartment.
  • a refrigerator is characterized by comprising: a storage compartment which is divided into at least an upper refrigerating compartment, an intermediate freezing compartment, and a lower vegetable compartment by a heat insulating partition wall; and a cooling compartment which is partitioned by a partition and formed in An inner portion of the freezer compartment; a cooler disposed in the cooling chamber to cool air supplied to the storage compartment; and a freezer compartment supply air passage formed by attaching a front cover to the front side of the partition body, The air that has been cooled by the cooler is circulated, and the vegetable compartment is supplied with an air passage, and the air is supplied to the vegetable compartment through the inner side of the freezer compartment, and the vegetable compartment is provided in the inner side of the freezer compartment to supply air.
  • the road is formed in a space defined by the vegetable compartment air passage cover, and the vegetable compartment air passage cover is separately provided in addition to the partition body and the front cover.
  • the vegetable compartment supply air passage is formed in a space partitioned by the vegetable compartment air passage cover, the vegetable compartment air passage cover covering the partition body of the cooling chamber and the front cover partitioning the freezer compartment supply air passage Set separately outside.
  • the partition that divides the cooling chamber or the freezer compartment supply air passage or the seal member that is attached to the front cover seals between the cooling chamber or the freezer supply air passage and the freezer compartment, and is attached to the vegetable.
  • the sealing member of the chamber supply air passage seals between the vegetable compartment supply air passage and the freezing compartment.
  • the vegetable compartment air passage cover as a separate component, the assemblability is improved, and the partition forming the cooling chamber, the freezer compartment supply air passage, and the sealing portion of the front cover can be fixed to the inner box by screwing or the like. . As a result, it is possible to prevent leakage of air from the cooling chamber or the freezing chamber supply air passage to the freezing chamber or leakage in the opposite direction.
  • the assembly property of the vegetable compartment supply air passage can be improved, and the gas supply to the vegetable compartment can be further improved. Confidentiality. Further, it is possible to reduce heat transfer between the vegetable compartment supply air passage and the outside thereof, and to reduce heat loss.
  • the vegetable compartment supply air passage may be formed to pass through the inside of the heat insulating partition wall which forms the top surface and the bottom surface of the freezing compartment, respectively.
  • the vegetable compartment air passage cover and the heat insulating member can be linearly extended in the vertical direction, and the vegetable compartment supply air passage can be easily assembled to the inner side portion of the freezing compartment.
  • the vegetable compartment air passage cover or the upper and lower end faces of the heat insulating member may be configured to be coupled to the heat insulating partition wall by a sealing member. Thereby, the assembly work can be easily performed, and the airtightness of the vegetable compartment supply duct can be ensured.
  • a damper device capable of individually controlling the amount of air flowing to the refrigerating compartment and the vegetable compartment by one drive motor, and to supply the vegetable compartment with cold air that does not pass through the refrigerating compartment.
  • the cooling of the vegetable compartment can be performed independently of the cooling of the refrigerator compartment, and the temperature of the vegetable compartment can be appropriately controlled.
  • the damper device may be disposed on the inner side portion of the heat insulating partition wall forming the top surface of the freezing compartment.
  • the vegetable compartment air passage cover or the heat insulating member extending linearly is sealed to the upper and lower end faces and joined to the heat insulating partition wall, whereby the vegetable compartment can be easily supplied to the wind inside the freezer compartment. road.
  • the damper device may be disposed such that the uppermost portion thereof is below the bottom surface of the refrigerating chamber.
  • a return air passage for allowing air to flow from the refrigerating chamber to the cooling chamber may be provided, and the return air passage may be formed by an inner wall of the heat insulating box (inner box) and a heat insulating member that forms a vegetable chamber supply air passage.
  • the return air passage may be formed by an inner wall of the heat insulating box (inner box) and a heat insulating member that forms a vegetable chamber supply air passage.
  • Fig. 1 is a front elevational view showing a refrigerator according to an embodiment of the present invention.
  • FIG. 2 is a side cross-sectional view showing a schematic structure of a refrigerator according to an embodiment of the present invention.
  • 3 is a front elevational view showing a supply air passage of the refrigerator according to the embodiment of the present invention.
  • Fig. 4 is a cross-sectional view taken along the line ⁇ - ⁇ of the inside of the freezer compartment of the refrigerator according to the embodiment of the present invention.
  • Fig. 6 is a transverse cross-sectional view showing a heat insulating member forming a vegetable compartment supply air passage of the refrigerator according to the embodiment of the present invention.
  • FIG. 7(A) is a perspective view showing a heat insulating partition wall above the freezer compartment in which the damper device of the refrigerator according to the embodiment of the present invention is attached, and ( ⁇ ) is a heat insulating portion above the freezer compartment showing the installation of the upper partition member.
  • Fig. 1 is a front elevational view showing a schematic structure of a refrigerator 1 according to the present embodiment.
  • 2 is a cross-sectional view of the right side of the refrigerator 1.
  • Fig. 3 is a schematic front elevational view showing a supply air passage of the refrigerator 1. Further, in Fig. 2 and Fig. 3, the flow of the cold air supplied to each of the storage compartments 3 to 7 is indicated by solid arrows, and the flow of the air returning from the storage compartments 3 to 7 to the cooling chamber 13 is indicated by broken arrows.
  • the refrigerator 1 is provided with a heat insulating box 2 as a main body, and a storage chamber for storing food or the like is formed inside the heat insulating box 2.
  • the interior of the storage compartment is divided into a plurality of storage compartments 3 to 7 depending on the storage temperature or use.
  • the uppermost layer is the refrigerating compartment 3, the lower side of which is the ice making compartment 4, and the lower side of the lower layer is the upper freezing compartment.
  • the lower layer is the lower freezer compartment 6, and the lowermost layer is the vegetable compartment 7.
  • the ice making compartment 4, the upper freezing compartment 5, and the lower freezing compartment 6 are storage compartments of the freezing temperature zone, and are collectively referred to as freezing compartments 4 to 6 as appropriate in the following description.
  • the front surface of the heat insulating box 2 is opened, and the heat insulating doors 8 to 12 are opened and closed in the opening portions corresponding to the respective storage chambers 3 to 7.
  • the refrigerating compartment doors 8a, 8b divide and block the front surface of the refrigerating compartment 3, and the upper left lower portion of the refrigerating compartment door 8a and the upper right lower portion of the refrigerating compartment door 8b are rotatably supported by the heat insulating box 2. Further, the heat insulating doors 9 to 12 are supported by the heat insulating box 2 so as to be pulled out toward the front of the refrigerator 1. As shown in Fig.
  • the heat insulating box 2 as the main body of the refrigerator 1 is provided with an outer box 2a made of a steel plate having an opening at the front side, and a gap between the outer box 2a and the outer box 2a.
  • the inner box 2b made of synthetic resin having an opening at the front side is filled with a heat insulating material 2c made of foamed polyurethane which is foamed in the gap between the outer box 2a and the inner box 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 compartments 4 to 6 located in the lower layer by an insulating partition wall 35.
  • the heat insulating partition wall 35 is a molded product of a synthetic resin, and is filled with a heat insulating material.
  • the ice making compartment 4 inside the freezing compartments 4 to 6 and the upper freezing compartment 5 are partitioned by a partition wall (not shown).
  • the ice making compartment 4 and the upper freezing compartment 5 communicate with the lower freezing compartment 6 provided in the lower layer thereof in a freely circulated manner.
  • the freezing compartments 4 to 6 and the vegetable compartment 7 are separated by a heat insulating partition wall 36.
  • the inside of the freezing compartments 4 to 6 is partitioned by a synthetic resin partition member, that is, the front cover 24, to form a freezer compartment supply air passage 14.
  • the freezing supply air passage 14 is a space formed between the partition 25 and the front cover 24 assembled in front thereof, and is an air passage for circulating cold air cooled by the cooler 33.
  • An opening for blowing cold air into the freezing compartments 4 to 6, that is, an air outlet 15 is formed in the front cover 24. Further, a return port 20 for returning air from the freezing compartments 4 to 6 to the cooling chamber 13 is formed on the lower back surface of the lower freezing compartment 6.
  • a refrigerating compartment supply air passage 16 for supplying cold air to the refrigerating compartment 3 is formed on the back surface of the refrigerating compartment 3.
  • An air outlet port 17 for discharging cold air to the refrigerating compartment 3 is formed in the refrigerating compartment supply air passage 16.
  • the freezer compartment supply air passage 14 and the refrigerating compartment supply air passage 16 communicate with the refrigerating compartment damper 34a of the damper unit 34 (wind passage switch).
  • the refrigerating compartment damper 34a is for controlling the flow rate of the cold air supplied to the refrigerating compartment 3, and appropriately maintaining the temperature inside the refrigerating compartment 3.
  • a cooling chamber 13 formed by partitions 25 is provided inside the inner side of the freezer compartment supply air duct 14 inside the inner box 2b. That is, the cooling chamber 13 is a space formed by the inner box 2b and the separator 25. Cooling An opening 13a that connects the cooling chamber 13 and the freezing chamber supply air passage 14 is formed in the partition 25 on the upper portion of the chamber 13, and a blower 32 for supplying cold air to each of the storage chambers 3 to 7 is disposed in the opening 13a. On the other hand, below the cooling chamber 13, an opening 13b for sucking the return cold air from the storage chamber into the inside of the cooling chamber 13 is formed.
  • a cooler 33 for cooling the circulating air is disposed inside the cooling chamber 13.
  • the cooler 33 is connected to the compressor 31, a radiator (not shown), and an expansion valve (capillary) (not shown) through a refrigerant pipe to constitute a vapor compression type refrigeration cycle.
  • isobutane (R600a) is used as the refrigerant of the above refrigeration cycle.
  • the refrigerator 1 is provided with a return air passage 21 for allowing air to flow from the refrigerating compartment 3 to the cooling chamber 13 (see Fig. 2).
  • a return air passage 21 for allowing air to flow from the refrigerating compartment 3 to the cooling chamber 13 (see Fig. 2).
  • an opening that is coupled to the return air passage 21, that is, the return port 22 is formed in the lower portion of the refrigerating compartment 3. The air in the refrigerating compartment 3 flows through the return port 22 to the return air path 21, and flows to the lower side of the cooler 33.
  • a vegetable chamber supply air passage 18 for allowing the air cooled by the cooler 33 to flow to the vegetable compartment 7 is formed.
  • the vegetable compartment supply air passage 18 is branched upward from the freezing compartment supply air passage 14, and the inside of the heat insulating partition wall 35 passing through the upper portions of the freezing compartments 4 to 6 is directed downward, and passes through the inside of the freezing compartments 4 to 6. Then, the insulating partition wall 36 is connected to the vegetable compartment 7.
  • an opening for blowing cold air from the vegetable compartment supply air passage 18, that is, an air outlet 19 is formed.
  • the vegetable compartment supply air passage 18 inside the heat insulating partition wall 35 is provided with a vegetable compartment damper 34b that controls the flow of cold air supplied to the vegetable compartment.
  • a vegetable compartment damper 34b that controls the flow of cold air supplied to the vegetable compartment.
  • a return port 29 is formed in the vegetable compartment 7, and the air in the vegetable compartment 7 flows from the return port 29 to the lower portion of the cooling chamber 13 through the vegetable compartment return air passage 23 (see Fig. 2) and the opening 13b (see Fig. 2).
  • Fig. 4 is a cross-sectional view showing the supply air passage inside the freezing compartments 4 to 6 of the refrigerator 1, and shows a cross section taken along line A - A in Fig. 3 .
  • the cooling chamber 13 is partitioned by a separator 25 assembled to the inner box 2b, and a cooler 33 is disposed in the cooling chamber 13.
  • a separator 25 assembled to the inner box 2b
  • a cooler 33 is disposed in the cooling chamber 13.
  • the freezing compartment supply air passage 14 is divided.
  • the separator 25 and the side edge portions 24b to 25b (sealing portions) of the front cover 24 are fixed to the inner box 2b by, for example, a screw or the like by a sealing member (not shown). Thereby, the airtightness of the cooling chamber 13 or the freezing chamber supply air passage 14 can be improved.
  • a vegetable compartment air passage cover 26 is incorporated in the cooling chamber 13 on the inner side of the freezing compartments 4 to 6 and the inner casing 2b on the right side of the freezing compartment supply air passage 14. Further, in the space partitioned by the vegetable compartment air passage cover 26, that is, the space in which the vegetable compartment air passage cover 26 and the inner casing 2b are sandwiched, the heat insulation of the vegetable compartment supply air passage 18 which is assembled into a substantially cylindrical shape is disposed. Components 27, 28.
  • the vegetable compartment supply air passage is formed by the partition plate and the front cover.
  • the member corresponding to the separator 25 and the vegetable compartment air passage cover 26 of the present invention may be integrally formed as one member, and a vegetable compartment supply air passage may be formed on the side surface of the cooling chamber. Further, a member corresponding to the front cover 24 and the vegetable compartment air passage cover 26 of the present invention is considered as one member integrally formed, and a vegetable compartment supply air passage is formed on the side surface of the freezer supply air passage.
  • the vegetable compartment supply air passage 18 is formed in a space partitioned by the vegetable compartment air passage cover 26 that supplies the wind in the cooling chamber 13 or the freezing compartment.
  • the separator 25 of the road 14 and the front cover 24 are separately provided.
  • the sealing portion which directly partitions the cooling chamber 13 or the freezing chamber supply air passage 14 and the vegetable compartment supply air passage 18 can be eliminated. That is, the sealing member attached to the partition 25 or the front cover 24 that partitions the cooling chamber 13 or the freezing chamber supply air passage 14 is The structure between the cooling chamber 13 or the freezing chamber supply air passage 14 and the freezing chambers 4 to 6 is sealed.
  • the return air passage 21 is formed by the heat insulating member 28 and the inner box 2b.
  • a sealing member 41 made of a foamed rubber material or the like is sandwiched to ensure airtightness.
  • Fig. 5 is an exploded perspective view for explaining a configuration of a supply air passage of the refrigerator 1.
  • the refrigerator 1 is shown as a partial cross-sectional view taken at the vicinity of the top surface of the freezer compartments 4 to 6 near the back surface and cut at an appropriate front surface. Below the cut surface near the back surface, there are a cooling chamber 13 (see Fig. 4) and a freezer supply air passage 14 (see Fig. 4) which are not shown.
  • the vegetable compartment air passage cover 26 has a cross section of substantially: ? A member made of synthetic resin that extends in a straight line shape.
  • a heat insulating member 27 and a heat insulating member 28 which are formed of a resin material such as polystyrene and have a predetermined cross-sectional shape and extend linearly are disposed.
  • the heat insulating member 27 and the heat insulating member 28 are combined with each other to form a vegetable chamber supply air passage 18 in a form of a large cylindrical shape as shown in Fig. ( ⁇ ).
  • the substantially cylindrical heat insulating members 27 and 28 forming the vegetable compartment supply air passage 18 are provided inside the vegetable compartment air passage cover 26, whereby the assembly property of the vegetable compartment supply air passage 18 can be improved, and further The airtightness of the vegetable room supply air passage 18 is improved. Further, it is possible to reduce the heat transfer between the vegetable compartment supply air passage 18 and the outside thereof, and to reduce the loss. Further, a sealing member 40 made of, for example, a foamed rubber material or the like is attached to the upper and lower end faces of the heat insulating members 27 and 28 which are assembled into a substantially cylindrical shape, and assembled in the freezing chambers 4 to 6 as shown in Fig. back.
  • the sealing member 40 installed here seals between the vegetable compartment supply air passage 18 and the freezing compartments 4 to 6.
  • the structure in which the vegetable compartment air passage cover 26 is assembled after the partition 25 and the front cover 24 are attached is used.
  • the assemblability is improved, and as described above, the sealing members 24b and 25b on the right side of the separator 25 and the front cover 24 can be fixed to the inner box 2b by screwing or the like.
  • engaging portions 26a and 26b for fixing the vegetable compartment air passage cover 26 are formed in the vegetable compartment air passage cover 26.
  • the engaging portion 26a is engaged with the engaging receiving portion 24a formed on the front cover, and the engaging portion 26b is engaged with an engaging receiving portion (not shown) formed in the inner case 2b.
  • the vegetable compartment air passage cover 26 can be easily attached, and assembly workability can be improved.
  • a method of fixing the vegetable compartment air passage cover 26 by screwing or the like may be employed.
  • Fig. 6 is a transverse cross-sectional view showing the heat insulating members 27 and 28 forming the vegetable compartment supply air passage 18.
  • the heat insulating member 27 and the heat insulating member 28 are formed with a convex portion 27a and a concave portion 28a which are fitted when the two members are combined.
  • the heat insulating member 27 is formed with a convex portion 27a as a fitting portion
  • the heat insulating member 28 is formed with a concave portion 28b.
  • the width dimension of the convex portion 27a may be formed to be slightly larger than the width dimension of the concave portion 28a. Since the convex portion 27a and the concave portion 28a are fitted with a slight interference amount, the holding force and the sealing performance of the fitting portion can be further improved.
  • the fitting portion (the convex portion 27a and the concave portion 28a)
  • other various forms can be used.
  • the unevenness of the shape for example, a wave shape or the like
  • the joint portion may be joined using an adhesive, or a seal member may be provided at the joint portion.
  • the structure of the heat insulating member 28 Thereby, the assembly property and the airtightness of the vegetable compartment supply air passage 18 can be further improved.
  • the heat insulating thickness t1 of the heat insulating member 28 (the distance between the vegetable compartment supply air passage 18 and the outer surface of the heat insulating member 28) is larger than the heat insulating thickness t2 of the heat insulating member 27 (the vegetable compartment supply air passage 18 and the heat insulating member) The distance from the outer surface of 27 is large. Thereby, it is possible to improve the heat insulating performance between the vegetable compartment supply air passage 18 having a large temperature difference and the return air passage 21. As a result, it is possible to prevent insufficient cooling of the vegetable compartment 7 (see Fig. 2) due to warming of the return air passing through the return air passage 21 by the air in the vegetable compartment supply air passage 18.
  • Fig. 7 (A) is a perspective view of the lower partition member 38 of the heat insulating partition wall 35 disposed above the freezing compartments 4 to 6 for explaining the assembly of the damper device 34 of the refrigerator 1, and Fig. 7(B) shows the mounting.
  • a heat insulating structure 39 made of, for example, polystyrene or the like is attached to the lower partition member 38 made of synthetic resin constituting the heat insulating partition wall 35. Openings are formed in the heat insulating structure 39, and these openings are the freezing compartment supply air passage 16, the vegetable compartment supply air passage 18, and the return air passage 21. and, The heat insulating structure 39 forms a recess 39a which forms a vegetable compartment supply air path 18.
  • a damper unit 34 is assembled to the heat insulating structure 39.
  • the damper device 34 is configured to be capable of individually controlling the refrigerating compartment damper 34a and the vegetable compartment damper 34b by one driving motor 34c, and the refrigerating compartment damper 34a controls the amount of air flowing to the refrigerating compartment 3 (refer to FIG. 2), the vegetable compartment The damper 34b controls the amount of air flowing to the vegetable compartment 7 (refer to Fig. 2).
  • the upper partition member 37 made of synthetic resin is attached to the lower partition member 38 to which the heat insulating structure 39 and the damper unit 34 are attached, and the heat insulating partition wall 35 is formed.
  • the upper partition member 37 and the heat insulating partition wall 35 may cover the vegetable compartment supply air passage 18 by some partition members, so that only the refrigerator compartment supply air passage 16 and the return air duct 21 are opened upward, and are not limited. The structure shown in the figure.
  • the vegetable compartment supply air passage 18 is formed to flow upward over the top surface (lower partition member 38) of the freezing compartments 4 to 6 (see FIG. 2), and to be redirected via the air duct inside the heat insulating partition wall 35. After that, the air passages formed in the inner side portions of the freezing compartments 4 to 6 flow through the vegetable compartment 7. Further, the damper unit 34 is disposed at an inner side portion of the heat insulating partition wall 35.
  • the vegetable compartment air passage cover 26 and the heat insulating members 27 and 28 can be linearly extended, and the vegetable compartment air passage cover 26 and the heat insulating members 27 and 28 can be used. Processing becomes easy. Further, the vegetable compartment supply air passage 18 can be easily assembled to the inner side of the freezing compartments 4 to 6.
  • the vegetable compartment supply air passage 18 is formed such that the uppermost portion thereof is below the bottom surface (upper partition member 37) of the refrigerator compartment 3 (see Fig. 2), and passes through the vegetable compartment.
  • the cool air of the damper 34b flows to the vegetable compartment 7 without passing through the refrigerating compartment 3 (refer to Fig. 2). Thereby, the heat loss of the cold air supplied to the vegetable compartment 7 can be reduced, and the temperature of the vegetable compartment 7 can be efficiently and appropriately controlled.
  • the damper device 34 is disposed such that its uppermost portion is below the bottom surface (upper partition member 37) of the refrigerating chamber 3. Thereby, in a state where the refrigerating compartment damper 34a is closed, it is possible to prevent the air in the refrigerating compartment 3 from being trapped The air below the refrigerating compartment damper 34a is cooled to cause dew condensation in the refrigerating compartment 3.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

提供了一种电冰箱（1）。该电冰箱（1）具备划分为上层的冷藏室（3）、中层的冷冻室（4-6）、下层的蔬菜室（7）的储藏室。电冰箱（1）包括经由冷冻室（4-6）的内侧部向蔬菜室（7）提供冷气的蔬菜室供给风路（18），蔬菜室供给风路（18）形成于由蔬菜室风路盖（26）划分的空间内。蔬菜室风路盖（26）在划分冷却室（13）的分隔体（25）以及划分冷冻室供给风路（14）的前面盖（24）之外单独设置。因此能够提高蔬菜室供给风路（18）的气密性，也能防止冷却室（13）、冷冻室供给风路（14）向蔬菜室供给风路（18）的冷气泄漏或相反方向的冷气泄漏，从而避免蔬菜室（7）的过度制冷或冷却不良。

Description

电冰箱 技术领域
本发明涉及在储藏室内冷却保存食品等的电冰箱， 特别是涉及具有将由冷 却器冷却而得的空气提供给疏菜室的供给风路的电冰箱。
背景技术
以往， 已知有所谓的冷冻室居中型的电冰箱， 其在上层配置冷藏室， 在中 层配置冷冻室， 在下层配置蔬菜室， 在配置于中层的冷冻室的内侧部设有容纳 冷却器的冷却室。 在这种电冰箱中， 有时将蔬菜室供给风路形成于冷冻室的内 侧部，该蔬菜室供给风路用于将由冷却器进行了冷却的空气提供给蔬菜室 (例如， 专利文献 1、 专利文献 2)。
专利文献 1 中公开的电冰箱具备蔬菜室供给风路 (同文献中记载为蔬菜室送 风管)， 该蔬菜室供给风路连通位于电冰箱的最上层的冷藏室和位于最下层的蔬 菜室， 将经由冷藏室的冷气导向蔬菜室。 在冷冻室的背部， 由分隔体 (该文献中 记载为蒸发器盖)和内箱形成容纳冷却器的冷却室（该文献中记载为冷气送风 管）。 该文献的蔬菜室供给风路 (蔬菜室送风管）， 形成于冷冻室的内侧部， 与冷 却窒 (冷气送风管)相邻设置。
另外， 专利文献 2中公开的电冰箱具有蔬菜室供给风路 (该文献中， 记载为 冷气通路)，该蔬菜室供给风路将由冷却器进行了冷却的空气直接提供给蔬菜室， 而不经由冷藏室。 该文献的蔬菜室供给风路 (冷气通路)由形成冷却室的分隔体 (该文献中记载为背面构件)和在冷却室的前方形成冷冻室供给风路的分隔体 (该 文献中记载为盖构件)形成。 具体地说， 在形成冷却室的分隔体 (背面构件)上形 成向上下方向延伸的凹部，利用前面盖 (盖构件)覆盖上述凹部形成蔬菜室供给风 路 (；冷气通路：)。
另外， 该文献中公开的电冰箱具备控制向冷藏室以及蔬菜室输送的冷气的 风门装置。 该风门装置容纳配置在冷冻室的后方投影面内， 组装在形成冷却室 的分隔体 (背面构件)上。
现有技术文献
专利文献
专利文献 1 : 日本特开 2011-52907号公报 (第 7〜7页， 图 2)
专利文献 2： 日本特开 2008-57902号公报 (第 6〜9页， 图 7)
然而， 在现有技术的电冰箱中存在如下问题： 难以确保蔬菜室供给风路的 气密性， 其结果是， 蔬菜室的恰当温度管理受阻。
具体地说， 在一体成型的分隔体和内箱之间同时形成冷却室和蔬菜室的情 况下， 由于分隔体的尺寸误差或釆用聚氨酯发泡的内箱的变形等， 容易在划分 蔬菜室供给风路和冷却室的密封部分 (分隔体与内箱的抵接部)产生间隙。
其结果是， 例如， 在蔬菜室的温度下降到规定的目标值而停止了向蔬菜室 提供冷气时， 冷气从冷却室通过上述间隙向蔬菜室供给风路泄漏， 从而成为蔬 菜室过度制冷的原因。
另一方面， 在进行蔬菜室的冷却时， 由于送风机的运转使冷却室为负压， 由于蔬菜室供给风路的压力比冷却室的压力高， 因此， 存在冷气通过上述间隙 被从蔬菜室供给风路吸引至冷却室， 而使蔬菜室冷却不良的可能性。
另外， 如专利文献 2 中公开的电冰箱那样， 在利用一体成型的分隔体和一 体成型的前面盖同时形成冷冻用供给风路和蔬菜室供给风路的情况下 , 也难以 确保冷冻用供给风路和蔬菜室供给风路之间的气密性。 即， 由于难以用螺丝固 定划分冷冻用供给风路与蔬菜室供给风路的密封部 (分隔体与前面盖的抵接部）， 因此， 该部分容易在分隔体与前面盖之间产生间隙。
当在冷冻用供给风路与蔬菜室供给风路的密封部存在间隙时， 导致在没有 进行蔬菜室的冷却时温度较低的空气从冷冻室供给风路向蔬菜室供给风路泄 漏， 蔬菜室过度制冷。
发明内容
本发明是鉴于上述情况而完成的， 其目的在于， 提供一种能够维持良好的 组装性并且能够提高蔬菜室供给风路的气密性并能够恰当地维持蔬菜室的温度 的电冰箱。
本发明的电冰箱其特征在于， 具备： 储藏室， 其由隔热分隔壁至少划分为 上层的冷藏室、 中层的冷冻室、 以及下层的蔬菜室； 冷却室， 其由分隔体划分， 形成在上述冷冻室的内侧部； 冷却器， 其配设在上述冷却室中， 对提供给上述 储藏室的空气进行冷却； 冷冻室供给风路， 其通过在上述分隔体的前方安装前 面盖而形成， 使由上述冷却器进行了冷却的上述空气流通； 以及蔬菜室供给风 路， 其经由上述冷冻室的内侧部向上述蔬菜室提供上述空气， 形成在上述冷冻 室的内侧部的上述蔬菜室供给风路形成于由蔬菜室风路盖划分出的空间中， 该 蔬菜室风路盖在上述分隔体以及上述前面盖之外另行设置。
根据本发明的电冰箱 , 蔬菜室供给风路形成于由蔬菜室风路盖划分出的空 间中， 该蔬菜室风路盖在划分冷却室的分隔体以及划分冷冻室供给风路的前面 盖之外单独设置。
因此， 能够取消直接划分冷却室或者冷冻室供给风路与蔬菜室供给风路之 间的密封部。 即， 划分冷却室或者冷冻室供给风路的分隔体或安装于前面盖上 的密封构件对冷却室或者冷冻室供给风路与冷冻室之间进行密封， 安装于蔬菜 室供给风路的密封构件对蔬菜室供给风路与冷冻室之间进行密封。
由此， 能够防止冷气从冷却室或者冷冻室供给风路向蔬菜室供给风路泄漏。 另外， 在冷却室成负压时， 能够防止蔬菜室供给风路内的冷气被吸引至冷却室。 其结果是， 能够避免蔬菜室的过度制冷、 冷却不良， 将蔬菜室维持在恰当的温 度。
另外， 通过将蔬菜室风路盖设为单独的部件， 提高了组装性， 并能够通过 螺丝固定等将形成冷却室、 冷冻室供给风路的分隔体以及前面盖的密封部固定 在内箱上。 其结果是， 能够防止空气从冷却室或者冷冻室供给风路向冷冻室的 泄漏或者其相反方向的泄漏。
另外， 通过在蔬菜室风路盖的内侧设置形成蔬菜室供给风路的筒状的隔热 构件， 由此， 能够提高蔬菜室供给风路的组装性， 并且进一步提高蔬菜室供给 风路的气密性。 并且， 能够减小蔬菜室供给风路与其外部的热传递， 降低热损 失。
另外 , 也可以将蔬菜室供给风路形成为经由分别形成冷冻室的顶面以及底 面的隔热分隔壁的内部。 由此， 能够将蔬菜室风路盖以及上述隔热构件设为向 上下方向呈直线状延伸的部件， 从而容易地将蔬菜室供给风路组装于冷冻室的 内侧部。
另外， 也可以将蔬菜室风路盖或者上述隔热构件的上下端面构成为通过密 封构件分别与上述隔热分隔壁结合。 由此， 能够容易地进行组装作业， 并且能 够确保蔬菜室供给风道的良好的气密性。
另外， 也可以设置能够用一个驱动电动机分别单独控制流至冷藏室以及蔬 菜室的空气的量的风门装置， 向蔬菜室提供不经由冷藏室的冷气。 由此， 能够 与冷藏室的冷却相独立地进行蔬菜室的冷却， 能够恰当地控制蔬菜室的温度。 另外， 也可以将上述风门装置配置在形成冷冻室的顶面的隔热分隔壁的内 侧部。 由此， 釆用直线状延伸的蔬菜室风路盖或者上述隔热构件， 分别密封该 上下端面并与隔热分隔壁接合， 由此， 能够容易地在冷冻室的内侧部形成蔬菜 室供给风路。
另外， 也可以把上述风门装置配设为其最上部在冷藏室的底面的下方。 由 此， 在关闭了冷藏室风门的状态下， 能够防止冷藏室内的空气被供给风路内的 空气冷却而在冷藏室内发生结露。
另夕卜，也可以设置使空气从冷藏室流向冷却室的返回风路，利用隔热箱体（内 箱）的内壁以及形成蔬菜室供给风路的隔热构件形成该返回风路。 由此， 能够形 成气密性以及隔热性较高的返回风路， 能够防止因流过返回风路内的空气而使 蔬菜室供给风路、 冷冻室被变暖。
附图说明
图 1是本发明的实施方式所涉及的电冰箱的外观主视图。
图 2是表示本发明的实施方式所涉及的电冰箱的概略构造的侧面剖视图。 图 3是表示本发明的实施方式所涉及的电冰箱的供给风路的主视省略图。 图 4是对本发明的实施方式所涉及的电冰箱的冷冻室内侧部的供给风路进 行说明的 Α-Α线剖视图。
图 5 Λ
分解立体图。
图 6是表示本发明的实施方式所涉及的电冰箱的形成蔬菜室供给风路的隔 热构件的横剖视图。
图 7(A)是表示本发明的实施方式的电冰箱的风门装置的装配的冷冻室上方 的隔热分隔壁的立体图， （Β)是表示上部分隔构件的安装的冷冻室上方的隔热分 隔壁的立体图。 附图标记说明
1 : 电冰箱； 2: 隔热箱体； 2b: 内箱； 3: 冷藏室； 4: 制冰室 (冷冻室）； 5: 上层冷冻室 (冷冻室）； 6: 下层冷冻室 (冷冻室）； 7: 蔬菜室； 13: 冷却室； 14: 供给风路 (冷冻室供给风路)； 16: 供给风路 (冷藏室供给风路)； 18: 供给风路 (蔬 菜室供给风路)； 21 : 返回风路； 24: 前面盖； 25: 分隔体； 26: 蔬菜室风路盖； 27: 隔热构件； 28: 隔热构件； 35: 隔热分隔壁； 36: 隔热分隔壁； 32: 送风 机； 33: 冷却器； 34: 风门装置； 34c: 驱动电动机； 40: 密封构件。 具体实施方式
图 1是表示本实施方式所涉及的电冰箱 1 的概略构造的外观主视图。 图 2 是电冰箱 1的右侧面剖视图。 图 3是表示电冰箱 1的供给风路的概略的主视省 略图。 此外， 在图 2以及图 3中， 用实线箭头表示提供给各储藏室 3〜7的冷气 的流动， 用虚线箭头表示从各储藏室 3〜7返回冷却室 13的空气的流动。 如图 1所示， 电冰箱 1具备作为主体的隔热箱体 2, 在该隔热箱体 2的内部 形成储藏食品等的储藏室。 储藏室的内部根据保存温度或用途划分为多个容纳 室 3〜7。 最上层是冷藏室 3 , 其下层左侧是制冰室 4, 其下层右侧是上层冷冻室
5 , 并且其再下层是下层冷冻室 6, 最下层是蔬菜室 7。 此外， 制冰室 4、 上层冷 冻室 5以及下层冷冻室 6都是冷冻温度区域的容纳室， 与下面的说明中， 将它 们适当地统称为冷冻室 4〜6。
隔热箱体 2的前面开口， 在与上述各容纳室 3〜7对应的上述开口部分别开 闭自如地设有隔热门 8〜12。 冷藏室门 8a、 8b分割并挡住冷藏室 3的前面， 冷藏 室门 8a的左上下部以及冷藏室门 8b的右上下部由隔热箱体 2旋转自如地支撑。 另外， 隔热门 9〜12由隔热箱体 2支撑成向电冰箱 1的前方拉出自如。 如图 2所示， 作为电冰箱 1的主体的隔热箱体 2由在前面具有开口部的钢 板制的外箱 2a、 在该外箱 2a的内侧与该外箱 2a具有间隙地配设的、 在前面具 有开口部的合成树脂制的内箱 2b、 填充发泡于上述外箱 2a与内箱 2b的间隙中 的发泡聚氨酯制的隔热材料 2c构成。 此外， 各隔热门 8〜12也釆用与隔热箱体 2 同样的隔热构造。
冷藏室 3与位于其下层的冷冻室 4〜6之间通过隔热分隔壁 35分隔。 隔热分 隔壁 35是合成树脂的成形品， 在其内部填充有隔热材料。
另外， 冷冻室 4〜6内部的制冰室 4与上层冷冻室 5之间通过分隔壁（图中未 示出）分隔。 制冰室 4及上层冷冻室 5与设置在它们下层的下层冷冻室 6以冷气 流通自如的方式连通。 并且， 冷冻室 4〜6与蔬菜室 7之间通过隔热分隔壁 36隔 开。
另外， 在冷冻室 4〜6的内侧， 通过合成树脂制的分隔构件、 即前面盖 24来 划分， 形成冷冻室供给风路 14。 具体地说， 冷冻用供给风路 14是分隔体 25与 组装在其前方的前面盖 24之间所形成的空间， 为流通由冷却器 33进行了冷却 的冷气的风路。
在前面盖 24中形成有向冷冻室 4〜6吹出冷气的开口、 即出风口 15。 另夕卜， 在下层冷冻室 6的下部背面形成有从冷冻室 4〜6向冷却室 13返回空气的返回口 20。
另外， 在冷藏室 3的背面， 形成有向冷藏室 3供给冷气的冷藏室供给风路 16。 在冷藏室供给风路 16上形成有向冷藏室 3流出冷气的出风口 17。 冷冻室供 给风路 14与冷藏室供给风路 16通过风门装置 34(风路开闭器)的冷藏室风门 34a 连通。 冷藏室风门 34a用于控制向冷藏室 3供给的冷气的流量， 恰当地维持冷 藏室 3内部的温度。
在内箱 2b内部的冷冻室供给风路 14的更内侧， 设有以分隔体 25隔开形成 的冷却室 13。 即， 冷却室 13是由内箱 2b与分隔体 25夹隔形成的空间。 在冷却 室 13上部的分隔体 25上， 形成有连接冷却室 13与冷冻室供给风路 14的开口 13a,在开口 13a中配设有用于向各储藏室 3〜7供给冷气的送风机 32。另一方面， 在冷却室 13的下方， 形成有将来自贮藏室的返回冷气吸入冷却室 13的内部的 开口 13b。
并且，在冷却室 13的内部配置有用于对循环的空气进行冷却的冷却器 33(蒸 发器)。 冷却器 33通过制冷剂配管与压缩器 31、 散热器 (未图示)、 膨胀阀 (毛细 管) (未图示)连接， 构成蒸汽压缩式的冷冻循环回路。 此外， 在本实施方式所涉 及的电冰箱 1中， 使用异丁烷 (R600a)作为上述冷冻循环的制冷剂。
如图 3所示， 电冰箱 1具备使空气从冷藏室 3流向冷却室 13(参照图 2)的返 回风路 21。 在冷藏室 3的下部， 形成有与返回风路 21连结的开口、 即返回口 22。 冷藏室 3内的空气通过返回口 22向返回风路 21流动， 并向冷却器 33的下 方流动。
另外， 在返回风路 21 的前方， 形成有使由冷却器 33进行了冷却的空气流 向蔬菜室 7的蔬菜室供给风路 18。 蔬菜室供给风路 18从冷冻室供给风路 14向 上方分支， 经由冷冻室 4〜6的上方的隔热分隔壁 35的内部将朝向变向下方， 通 过冷冻室 4〜6的内部。 然后， 贯通隔热分隔壁 36与蔬菜室 7连结。 在蔬菜室 7 中， 形成有从蔬菜室供给风路 18吹出冷气的开口、 即出风口 19。
在隔热分隔壁 35的内侧的蔬菜室供给风路 18中， 设有控制向蔬菜室供给 的冷气的流动的蔬菜室风门 34b。 由此， 能够与冷藏室 3的冷却相独立地进行蔬 菜室 7的冷却， 能够恰当地控制蔬菜室 7的温度。
另外， 在蔬菜室 7中形成有返回口 29, 蔬菜室 7内的空气从返回口 29经由 蔬菜室返回风路 23(参照图 2)以及开口 13b (参照图 2)流向冷却室 13的下部。
图 4是说明电冰箱 1的冷冻室 4〜6内部的供给风路的剖面图， 表示图 3中 的 A - A线剖面。
如图 4所示， 通过组装在内箱 2b上的分隔体 25划分形成冷却室 13 , 在该 冷却室 13中配设冷却器 33。 另外， 通过分隔体 25与组装在其前方的前面盖 24 划分形成冷冻室供给风路 14。
分隔体 25以及前面盖 24 的两侧边缘部 24b 25b (密封部)通过未图示的密 封构件， 利用例如螺丝等固定在内箱 2b上。 由此， 能够提高冷却室 13或冷冻 室供给风路 14的气密性。
在冷冻室 4〜6的内侧的冷却室 13以及冷冻室供给风路 14的右侧的内箱 2b 上组装有蔬菜室风路盖 26。 并且， 在由蔬菜室风路盖 26划分的空间、 即由蔬菜 室风路盖 26与内箱 2b夹持的空间中配设有形成蔬菜室供给风路 18的组装成大 致筒形状的隔热构件 27、 28。 在此， 在现有技术的电冰箱中， 由分隔板、 前面盖形成蔬菜室供给风路。 即， 有时相当于本发明的分隔体 25和蔬菜室风路盖 26的部件为一体成型的 1 个部件， 在冷却室的侧面形成蔬菜室供给风路。 另外， 也考虑了相当于本发明 的前面盖 24和蔬菜室风路盖 26的部件作为一体成型的一个部件， 在冷冻室供 给风路的侧面形成蔬菜室供给风路。
在这样的现有技术的结构中， 需要直接划分并密封冷却室或者冷冻室供给 风路和蔬菜室供给风路的部分。 具体地说， 在划分冷却室或者冷冻室供给风路 与蔬菜室供给风路的部分， 使分隔体与内箱或者前面盖与分隔体夹着由发泡橡 胶材料等构成的密封构件而抵接。 然而， 由于各部件的加工尺寸误差或聚氨酯 发泡导致的变形、 难以螺丝固定分隔体与前面盖等理由， 该密封部容易产生间 隙， 成为冷气泄漏的原因。
与此相比， 在本发明中， 如上所述， 蔬菜室供给风路 18形成于由蔬菜室风 路盖 26划分的空间，该蔬菜室风路盖 26在形成冷却室 13或冷冻室供给风路 14 的分隔体 25以及前面盖 24之外单独设置。 由此， 能够取消直接划分冷却室 13 或者冷冻室供给风路 14与蔬菜室供给风路 18之间的密封部。 即， 安装于划分 冷却室 13或者冷冻室供给风路 14的分隔体 25或者前面盖 24上的密封构件为 密封冷却室 13或者冷冻室供给风路 14与冷冻室 4〜6之间的结构。
由此， 能够防止冷气从冷却室 13或者冷冻室供给风路 14向蔬菜室供给风 路 18泄漏。 并且， 冷却室 13为负压时， 能够防止蔬菜室供给风路 18内的冷气 被冷却室 13吸引。 其结果是， 能够避免蔬菜室 7 (参照图 2)的过度制冷、 冷却不 良， 防止冷却保存在蔬菜室 7中的食品等的品质恶化。
另外， 在蔬菜室供给风路 18的更内侧部， 由隔热构件 28和内箱 2b形成返 回风路 21。 在隔热构件 28和内箱 2b的接合部分， 例如夹入由发泡橡胶材料等 构成的密封构件 41 , 确保了气密性。 这样， 通过由隔热构件 28 形成返回风路 21 , 能够确保气密性以及隔热性， 能够防止蔬菜室供给风路 18、 冷冻室 4〜6因 流过返回风路 21内的空气而变暖。
图 5是对电冰箱 1的供给风路的结构进行说明的分解立体图。 在图 5中， 为了进行说明， 将电冰箱 1表示为： 在背面附近冷冻室 4〜6的顶面附近剖开， 在前方以适当的曲面剖开而得的部分剖开图。 在背面附近的剖开面的下方有本 图未示出的冷却室 13(参照图 4)和冷冻室供给风路 14(参照图 4)。
如图 5的附图标记（ I )所示， 蔬菜室风路盖 26是横剖面为大致:？字型且呈 直线状延伸的合成树脂制的部件。 在蔬菜室风路盖 26的内部， 配设有例如由聚 苯乙烯等树脂材料构成、 具有规定的横剖面形状且呈直线状延伸的隔热构件 27 和隔热构件 28。 隔热构件 27以及隔热构件 28相互组合， 如同图（Π )所示， 成大 致筒形状的形态， 形成蔬菜室供给风路 18。
这样， 在蔬菜室风路盖 26的内侧， 通过设置形成蔬菜室供给风路 18的大 致筒形状的隔热构件 27、 28, 由此， 能够提高蔬菜室供给风路 18的组装性， 并 且进一步提高蔬菜室供给风路 18的气密性。 并且， 能够减少蔬菜室供给风路 18 与其外部的热传递， 降 损失。 并且， 在组装成大致筒形状的隔热构件 27、 28的上下端面， 安装有例如由 发泡橡胶材料等构成的密封构件 40, 如图（III)所示， 组装于冷冻室 4〜6的背面。 然后， 隔热构件 27、 28的上下端面通过密封构件 40分别与由隔热分隔壁 35(参 照图 2)以及隔热分隔壁 36结合。 在此安装的密封构件 40密封蔬菜室供给风路 18与冷冻室 4〜6之间。
这样， 在电冰箱 1中， 由于是仅对形成蔬菜室供给风路 18的隔热构件 27、 28的上下端面进行密封的结构， 因此， 组装容易， 并且能够发挥良好的气密性。
另外， 在电冰箱 1 中， 釆用在安装了分隔体 25和前面盖 24之后组装蔬菜 室风路盖 26的结构。 由此， 提高了组装性， 如上所述， 能够利用螺丝固定等将 分隔体 25以及前面盖 24的右侧的密封部 24b、 25b固定在内箱 2b上。 其结果 是， 能够防止空气从冷却室 13或者冷冻室供给风路 14向冷冻室 4〜6或者其相 反方向泄漏。
另外，在蔬菜室风路盖 26上形成有用于固定蔬菜室风路盖 26的卡合部 26a、 26b。 卡合部 26a与形成于前面盖的卡合接受部 24a卡合， 卡合部 26b与形成于 内箱 2b的未图示的卡合接受部卡合。 由此， 能够容易地安装蔬菜室风路盖 26, 提高组装作业性。 此外， 也可以釆用利用螺丝固定等固定蔬菜室风路盖 26的方 法。
图 6是表示形成蔬菜室供给风路 18的隔热构件 27、 28的横剖视图。 如图 6 的附图标记（ I )所示，在隔热构件 27以及隔热构件 28形成有在组合两部件时进 行嵌合的凸部 27a以及凹部 28a。 具体地说， 在隔热构件 27上形成有作为嵌合 部的凸部 27a, 在隔热构件 28上形成有凹部 28b。 由此， 如同图（II )所示， 在组 装了隔热构件 27、 28时， 凸部 27a与凹部 28a嵌合， 通过该嵌合能确保良好的 保持力和密封性能。 其结果是， 如上所述， 通过仅对隔热构件 27、 28的上下端 面利用密封构件 40(参照图 5)进行密封， 能够容易地形成气密性良好的蔬菜室供 给风路 18。
在此，也可以将凸部 27a的宽度尺寸形成为比凹部 28a的宽度尺寸略大。 由 此， 由于凸部 27a以及凹部 28a具有微小的过盈量而嵌合， 因此， 能够进一步提 高该嵌合部的保持力和密封性能。
此外， 作为上述嵌合部（凸部 27a、 凹部 28a), 可以使用其它各种方式。 通 过形成与隔热构件 27、 28的接合面分别对应的形状 (例如， 波形状等)的凹凸， 也能够使接合面积增大提高该部分的密封性。 另外， 可以使用粘合剂接合该接 合部分， 也可以在该接合部分设置密封构件。 和隔热构件 28的结构。 由此， 能够进一步提高蔬菜室供给风路 18的组装性以 及气密性。
另外，隔热构件 28的隔热厚度 tl (蔬菜室供给风路 18与隔热构件 28的外表 面的距离）比隔热构件 27的隔热厚度 t2(蔬菜室供给风路 18与隔热构件 27的外 表面的距离）大。 由此， 能够提高温度差变大的蔬菜室供给风路 18 与返回风路 21之间的隔热性能。 其结果是， 能够防止由于蔬菜室供给风路 18内的空气被流 过返回风路 21的返回空气变暖而导致的蔬菜室 7 (参照图 2)的冷却不足。
图 7 (A)是对电冰箱 1的风门装置 34的组装进行说明的、配置在冷冻室 4〜6 上方的隔热分隔壁 35的下部分隔构件 38的立体图 , 同图 (B)是表示安装有上部 分隔构件 37的状态的隔热分隔壁 35的立体图。
如图 7 (A)所示，在构成隔热分隔壁 35的合成树脂制的下部分隔构件 38上， 安装有由例如聚苯乙烯等构成的隔热构造体 39。 隔热构造体 39上形成有开口， 这些开口为冷冻室供给风路 16、 蔬菜室供给风路 18以及返回风路 21。 并且， 隔热构造体 39形成凹槽 39a, 该凹槽 39a形成蔬菜室供给风路 18。
另外， 在隔热构造体 39上组装有风门装置 34。 如上所述， 风门装置 34构 成为能够利用一个驱动电动机 34c分别单独控制冷藏室风门 34a以及蔬菜室风门 34b, 该冷藏室风门 34a控制流至冷藏室 3(参照图 2)的空气量， 蔬菜室风门 34b 控制流至蔬菜室 7(参照图 2)的空气量。
然后， 如图 7 (B)所示， 在安装有隔热构造体 39以及风门装置 34的下部分 隔构件 38上安装合成树脂制的上部分隔构件 37, 形成隔热分隔壁 35。 此外， 上部分隔构件 37、 隔热分隔壁 35 , 只要利用一些分隔构件遮挡蔬菜室供给风路 18的上方， 使得仅冷藏室供给风路 16以及返回风管 21在上方开口即可， 而不 限定于图示的结构。
由此， 蔬菜室供给风路 18形成为： 向冷冻室 4〜6 (参照图 2)的顶面（下部分 隔构件 38)的上方流动， 经由隔热分隔壁 35 内部的风管将朝向改向下方之后， 流过形成于冷冻室 4〜6的内侧部的风路， 流向蔬菜室 7。 另外， 风门装置 34配 置于隔热分隔壁 35的内侧部。
通过釆用这样的结构， 如图 5所示， 能够将蔬菜室风路盖 26以及隔热构件 27、 28设为直线状延伸的部件， 蔬菜室风路盖 26以及隔热构件 27、 28的加工 变得容易。并且，能够容易地将蔬菜室供给风路 18组装于冷冻室 4〜6的内侧部。
另外， 如图 7 (A)以及 (B)所示， 蔬菜室供给风路 18形成为： 其最上部在冷 藏室 3 (参照图 2)的底面 (上部分隔构件 37)的下方， 通过蔬菜室风门 34b的冷气 不经由冷藏室 3地流向蔬菜室 7 (参照图 2)。 由此， 能够降低提供给蔬菜室 7的 冷气的热损失， 能够高效恰当地控制蔬菜室 7的温度。
另外， 风门装置 34配设为其最上部在冷藏室 3的底面 (上部分隔构件 37)的 下方。 由此， 在关闭了冷藏室风门 34a状态下， 能够防止冷藏室 3 内的空气被 冷藏室风门 34a下方的空气冷却而在冷藏室 3内发生结露。
非限定于此， 在不脱离本发明的宗旨的范围内， 可以进行各种变更。

Claims

权 利 要 求 书
1. 一种电冰箱， 其特征在于， 具备：
储藏室， 其由隔热分隔壁至少划分为上层的冷藏室、 中层的冷冻室、 以及 下层的蔬菜室；
冷却室， 其由分隔体划分， 形成在上述冷冻室的内侧部；
冷却器， 其配设在上述冷却室中， 对提供给上述储藏室的空气进行冷却； 冷冻室供给风路， 其通过在上述分隔体的前方安装前面盖而形成， 使由上 述冷却器进行了冷却的上述空气流通； 以及
蔬菜室供给风路， 其经由上述冷冻室的内侧部向上述蔬菜室提供上述空气， 形成在上述冷冻室的内侧部的上述蔬菜室供给风路形成于由蔬菜室风路盖 划分出的空间中， 该蔬菜室风路盖在上述分隔体以及上述前面盖之外另行设置。
2. 根据权利要求 1所述的电冰箱， 其特征在于，
在上述蔬菜室风路盖的内侧， 设有形成上述蔬菜室供给风路的筒状的隔热 构件。
3. 根据权利要求 2所述的电冰箱， 其特征在于，
上述蔬菜室供给风路形成为经由分别形成上述冷冻室的顶面以及底面的上 述隔热分隔壁的内部，
上述蔬菜室风路盖或者上述隔热构件的至少任一方的上下端面通过密封构 件分别与上述隔热分隔壁结合。
4. 根据权利要求 3所述的电冰箱， 其特征在于，
具备风门装置， 其能够利用一个驱动电动机分别单独控制向上述冷藏室以 及上述蔬菜室流通的上述空气的量，
上述风门装置以其最上部在上述冷藏室的底面的下方的方式配设于形成上 述冷冻室的顶面的上述隔热分隔壁的内侧部，
上述蔬菜室供给风路不经由上述冷藏室。
5. 根据权利要求 4所述的电冰箱， 其特征在于，
具备使空气从上述冷藏室流向上述冷却室的返回风路，
上述返回风路被形成上述储藏室的隔热箱体的内壁和形成上述蔬菜室风路 的上述隔热构件包围而形成。
PCT/CN2014/074626 2013-06-21 2014-04-02 电冰箱 Ceased WO2014201893A1 (zh)

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