WO2013183261A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2013183261A1 WO2013183261A1 PCT/JP2013/003413 JP2013003413W WO2013183261A1 WO 2013183261 A1 WO2013183261 A1 WO 2013183261A1 JP 2013003413 W JP2013003413 W JP 2013003413W WO 2013183261 A1 WO2013183261 A1 WO 2013183261A1
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- WO
- WIPO (PCT)
- Prior art keywords
- inner box
- duct
- lower inner
- refrigerator
- upper inner
- Prior art date
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Classifications
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- 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
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- 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
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/065—Details
- F25D23/068—Arrangements for circulating fluids through the insulating material
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- 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 the structure of a refrigerator, particularly a refrigerator body.
- a refrigerator main body of a refrigerator is a resin inner box that forms a refrigerator compartment, a freezer compartment, etc., a metal thin outer box that covers the outer periphery of the inner box, and foam that is filled between them. It is composed of urethane.
- FIG. 36 is a cross-sectional view showing the configuration of the refrigerator main body 1001 in the conventional refrigerator 1000
- FIG. 37 is a perspective view showing the configurations of the inner box 1005 and the dew tray 1013 in the refrigerator 1000.
- the refrigerator main body 1001 includes an upper inner box 1002, a lower inner box 1003, an inner box 1005 having an upper inner box 1002 and a lower inner box 1003, and an upper inner box 1002 and a lower inner box 1003.
- a partition wall 1004 integrally connecting the two.
- a dew tray 1013 is inserted in the partition wall 1004, and the upper inner box 1002 and the lower inner box 1003 in a state where the dew tray 1013 is inserted are accommodated in the outer box 1006, and foamed therebetween.
- the refrigerator main body 1001 is formed by filling and solidifying the heat insulating material.
- the dew receiving tray 1013 is formed with a cold air recirculation passage 1014 and a cold air passage 1023.
- the reflux passage 1014 connects the cold air reflux port 1018, the drain outlet 1022 and the cold air reflux inlet 1021 formed in the partition wall 1004 of the inner box 1005, and the cold air passage 1023 is connected to the inner box 1005.
- a cold air inlet 1017 and a cold air outlet 1020 formed in the partition wall 1004 are connected.
- the dew tray 1013 is located in the partition wall 1004 between the upper inner box 1002 and the lower inner box 1003, there is a problem that the heat insulation between the upper inner box 1002 and the lower inner box 1003 is poor.
- the dew tray 1013 is formed of foamed polystyrene other than the reflux passage 1014 and the cold air passage 1023, and the foamed polystyrene is used for foamed insulation such as urethane foam filled between the inner box 1005 and the outer box 1006. This is because the heat insulating property is poorer than that.
- heat insulation deterioration occurs in a portion where the dew tray 1013 is located in the partition wall 1004. Due to this heat insulation deterioration, the heat insulation between the upper inner box 1002 and the lower inner box 1003 is lowered, and heat transfer occurs from the lower inner box 1003 serving as a refrigerator compartment to the upper inner box 1002 serving as a freezer compartment.
- the conventional refrigerator 1000 since the electric power for cooling the temperature which rises by this heat transfer to predetermined freezer compartment temperature is required, power consumption increases. This increase in power consumption is becoming a major issue even if it is slight, as the power situation has been worsening in recent years.
- a refrigerator a metal outer box, a resin inner box disposed in the outer box and having an upper inner box and a lower inner box, and urethane foam filled between the outer box and the inner box
- the refrigerator main body comprised is comprised.
- a front air passage that integrally connects the upper inner box and the lower inner box, and a cylinder for the cold air passage that connects the rear inner ends of the upper inner box and the lower inner box opposite to the front plate.
- a duct member Furthermore, urethane foam is filled in the entire area between the partition wall portions of the upper inner box and the lower inner box.
- FIG. 1 is a front view of the refrigerator in the first embodiment of the present invention.
- FIG. 2 is a sectional view of the refrigerator in the first embodiment of the present invention.
- FIG. 3 is a perspective view showing the configuration of the refrigerator main body of the refrigerator according to the first embodiment of the present invention as seen from the front side.
- FIG. 4 is a perspective view seen from the back side showing the configuration of the refrigerator main body of the refrigerator in the first embodiment of the present invention.
- FIG. 5A is a front view showing the configuration of the inner box of the refrigerator according to the first embodiment of the present invention.
- FIG. 5B is a side view showing the configuration of the inner box of the refrigerator in the first embodiment of the present invention.
- FIG. 5C is a rear view showing the configuration of the inner box of the refrigerator in the first embodiment of the present invention.
- FIG. 6 is a perspective view showing the main part of the inner box of the refrigerator according to the first embodiment of the present invention as seen from the back.
- FIG. 7 is a perspective view of relevant parts showing the relationship between the inner box of the refrigerator and the duct member in the first embodiment of the present invention.
- FIG. 8 is a perspective view taken along line 8-8 in FIG.
- FIG. 9A is a perspective view seen from the front side showing the configuration of the duct member used in the refrigerator in the first embodiment of the present invention.
- FIG. 9B is a perspective view showing the configuration of the duct member of the refrigerator according to the first embodiment of the present invention as seen from the back side.
- FIG. 9A is a perspective view seen from the front side showing the configuration of the duct member used in the refrigerator in the first embodiment of the present invention.
- FIG. 9B is a perspective view showing the configuration of the duct member of the refrigerator according
- FIG. 10 is a front view of the refrigerator in the second embodiment of the present invention.
- FIG. 11 is a front view which shows the internal structure of the refrigerator in the 2nd Embodiment of this invention.
- FIG. 12 is a sectional view seen from the side of the refrigerator in the second embodiment of the present invention.
- FIG. 13 is sectional drawing seen from the refrigerator in the 2nd Embodiment of this invention.
- FIG. 14 is a front view which shows the flow of the cool air of the refrigerator in the 2nd Embodiment of this invention.
- FIG. 15 is a perspective view which shows the refrigerator main body of the refrigerator in the 2nd Embodiment of this invention.
- FIG. 16 is the perspective view which looked at the inner case of the refrigerator in the 2nd Embodiment of this invention from the back side.
- FIG. 17 is an enlarged perspective view of a main part of FIG.
- FIG. 18 is a perspective view of the cooling chamber case of the refrigerator according to the second embodiment of the present invention as viewed from above.
- FIG. 19 is a perspective view of the cooling chamber case of the refrigerator according to the second embodiment of the present invention as seen from the back side.
- FIG. 20 is an enlarged view showing a connection cross-sectional configuration of the upper inner box and the lower inner box of the refrigerator according to the second embodiment of the present invention using duct members.
- FIG. 21 is an explanatory diagram when the foaming filler is filled and foamed between the upper and lower inner boxes and the lower inner box and the outer box of the refrigerator according to the second embodiment of the present invention.
- FIG. 21 is an explanatory diagram when the foaming filler is filled and foamed between the upper and lower inner boxes and the lower inner box and the outer box of the refrigerator according to the second embodiment of the present invention.
- FIG. 22 is an enlarged view showing a connection cross-sectional configuration by a duct member in a part different from FIG. 20 of the upper inner box and the lower inner box of the refrigerator in the second embodiment of the present invention.
- FIG. 23 is a front view of the refrigerator according to the third embodiment of the present invention.
- FIG. 24 is a front view showing the internal structure of the refrigerator in the third embodiment of the present invention.
- FIG. 25 is a cross-sectional view seen from the side of the refrigerator in the third embodiment of the present invention.
- FIG. 26 is a cross-sectional view of the refrigerator according to the third embodiment of the present invention as seen from above.
- FIG. 27 is a front view showing a flow of cold air in the refrigerator in the third embodiment of the present invention.
- FIG. 28 is a perspective view showing the refrigerator body of the refrigerator in the third embodiment of the present invention.
- FIG. 29 is a perspective view of the inner box of the refrigerator according to the third embodiment of the present invention as seen from the back side.
- 30 is an enlarged perspective view of a main part of FIG.
- FIG. 31 is a perspective view of the cooling chamber case of the refrigerator according to the third embodiment of the present invention as viewed from above.
- FIG. 32 is a perspective view of the cooling chamber case of the refrigerator according to the third embodiment of the present invention as seen from the back side.
- FIG. 33 is an enlarged view showing a connection cross-sectional configuration of the upper inner box and the lower inner box of the refrigerator according to the third embodiment of the present invention using duct members.
- FIG. 34 is an explanatory diagram when the foaming filler is filled and foamed between the upper and lower inner boxes and the lower and inner boxes of the refrigerator according to the third embodiment of the present invention.
- FIG. 35 is an enlarged view showing a connection cross-sectional configuration by a duct member in a part different from FIG. 34 of the upper inner box and the lower inner box of the refrigerator in the third embodiment of the present invention.
- FIG. 36 is a cross-sectional view showing a configuration of a refrigerator body in a conventional refrigerator.
- FIG. 37 is a perspective view showing configurations of an inner box and a dew tray in a conventional refrigerator.
- FIG. 1 is a front view of the refrigerator 100 according to the first embodiment of the present invention
- FIG. 2 is a sectional view of the refrigerator 100
- FIG. 3 shows the configuration of the refrigerator main body 101 of the refrigerator 100.
- FIG. 4 is a perspective view seen from the back side showing the configuration of the refrigerator main body 101 of the refrigerator 100
- FIG. 5A is a front view showing the configuration of the inner box 111 of the refrigerator 100
- FIG. 5C is a side view showing the configuration of the inner box 111
- FIG. 5C is a rear view showing the configuration of the inner box 111.
- 6 is a perspective view of the main part of the inner box 111 of the refrigerator 100 as viewed from the back
- FIG. 7 is a main part perspective view showing the relationship between the inner box 111 of the refrigerator 100 and the duct member 118.
- 8 is a perspective view taken along line 8-8 in FIG. 7
- FIG. 9A is a perspective view showing the configuration of the duct member 118 used in the refrigerator 100 as seen from the front side.
- FIG. 9B is a perspective view showing the configuration of the duct member 118 as seen from the back side.
- the refrigerator 100 includes a refrigerator main body 101 that separates the inside and the outside in a heat-insulating state, and also includes a plurality of compartments in the refrigerator main body 101. Yes.
- the refrigerator main body 101 is divided into two storage rooms, the lower storage room 102 is a freezing room, and the upper storage room 103 is its function (cooling temperature). ) To distinguish from the refrigerator compartment 103a and the vegetable compartment 103b.
- the refrigerating room 103a of the upper storage room 103 is set to a temperature at which food is not frozen, usually about 1 ° C to 5 ° C.
- the vegetable room 103b is set to a temperature that is equal to or slightly higher than that of the refrigerator room 103a.
- the storage room 102 which is a freezer room below them is set to about ⁇ 30 ° C., and the temperature difference between the storage rooms 102 and 103 is large.
- a cooling chamber 106 that houses a cool air circulation fan 104 that circulates cool air in each of the storage chambers 102 and 103, a cooler 105 that generates cool air, and the like. Is provided.
- the refrigerator main body 101 is configured by filling and foaming foamed urethane 112 such as hard foamed urethane between an outer box 110 made of a thin metal plate and an inner box 111 made of resin such as polystyrene. Thereby, it becomes the structure which can interrupt
- foamed urethane 112 such as hard foamed urethane between an outer box 110 made of a thin metal plate and an inner box 111 made of resin such as polystyrene.
- the refrigerator 100 also includes a first door 113 that opens and closes a storage chamber 102 that is a freezer compartment, and a second door 114 that opens and closes the storage chamber 103 that is a refrigerator compartment 103a and a vegetable compartment 103b.
- the 1st door 113 and the 2nd door 114 are rotatably attached to the refrigerator main body 101, for example, and the right side edge part is comprised by filling and foaming hard foaming urethane inside.
- the inner box 111 of the refrigerator main body 101 includes an upper inner box 115 that forms a storage room 103 that serves as a refrigeration room 103a, a vegetable room 103b, and a storage room 102 that serves as a freezing room.
- the lower inner box 116 to be formed is integrally formed by vacuum forming. That is, the inner box 111 is an integrated component in which the upper inner box 115 and the lower inner box 116 are integrally connected by the front plate portion 117 on the front surface thereof.
- the inner box 111 cools air from the cooling chamber 106 between the rear ends of the upper inner box 115 and the lower inner box 116 on the side opposite to the front plate part 117.
- a cylindrical duct member 118 for passing a cold air passage is connected.
- the rear ends of the upper inner box 115 and the lower inner box 116 are connected to each other by the duct member 118.
- connection configuration of the upper inner box 115 and the lower inner box 116 by the duct member 118 will be described with reference to FIGS. 6 to 9B.
- protrusions 119 a and 119 b for forming a cold air passage are integrally formed on the back wall of the upper inner box 115 having the larger volume.
- a forward duct opening 121 is formed in the partition wall portion 115a of the upper inner box 115 and the partition wall portion 116a of the lower inner box 116. 3, see FIG. 8).
- a return duct opening 122 (see FIG. 3, the return duct opening of the lower inner box 116 is not shown) is formed beside the forward duct opening 121 of the partition walls 115a and 116a. Yes. Further, a pair of protrusions 124 protruding backward are integrally formed in the cool air passage 120 between the protrusions 119a and 119b.
- a pair of protruding portions 119a and 119b for forming a cool air passage are integrally formed on the rear wall portion of at least the larger volume of the upper inner box 115 and the lower inner box 116, and the partition wall portion 115a. , 116a, duct openings 121 and 122 are provided at portions corresponding to the cold air passage 120 between the pair of protrusions 119a and 119b.
- the strength of the inner box 111 in the vicinity of the duct opening which tends to be weak because the volume is large, can be improved.
- the wall surface of the inner box 111 near the duct openings 121 and 122 is deformed by the filling pressure of the foamed urethane 112 filled between the partition wall portions 115a and 116a, and the foamed urethane 112 is prevented from entering the duct member 118. can do.
- the duct member 118 is formed of polystyrene, ABS, or the like.
- the duct member 118 includes an outward duct 125 and a return duct 126.
- the upper and lower open ends of the forward duct 125 and the return duct 126 are integrally connected by a flange portion 127.
- each of the forward duct 125 and the return duct 126 protrude from the flange portion 127, and cylindrical convex portions 125a and 126a are provided.
- a support portion having a shape along a corner portion connecting the partition wall portions 115a and 116a of the upper inner box 115 and the lower inner box 116 and the rear wall portion is provided at the rear end edges of both flange portions 127 formed vertically. 128 is continuously provided.
- the support portion 128 is formed with a locking portion 129 having holes for fitting into the protruding portions 124 of the upper inner box 115 and the lower inner box 116.
- the entire forward duct 125 and return duct 126 of the duct member 118 are inclined in the front-rear direction.
- the duct member 118 has both cylindrical projections 125a and 126a formed on the upper and lower sides, the forward duct opening 121 formed on the partition walls 115a and 116a of the upper inner box 115 and the lower inner box 116, and a return duct.
- the upper inner box 115 and the lower inner box 116 are fitted in a form inserted into the duct opening 122.
- the locking portion 129 is fitted and fixed to the protrusions 124 provided in the cool air passage portions 120 of the upper inner box 115 and the lower inner box 116, respectively.
- the rear end portions of the upper inner box 115 and the lower inner box 116 are connected by the duct member 118.
- the duct walls 121a and 116a are provided in the partition wall portions 115a and 116a of the upper inner box 115 and the lower inner box 116 connected by the duct member 118, and the ducts are fitted and connected to the duct openings 121 and 122.
- a flange portion 127 is provided in the vicinity of the opening end of the member 118. Further, the periphery of the duct openings 121 and 122 of the partition wall portions 115a and 116a of the upper inner box 115 and the lower inner box 116 into which the opening ends are fitted is covered with a flange portion 127.
- cylindrical projections 125 a and 126 a that protrude from the flange 127 are provided at the fitting connection portions of the duct member 118 to the duct openings 121 and 122. Then, by inserting the cylindrical convex portions 125 a and 126 a into the duct openings 121 and 122, the duct member 118 is fitted into the duct openings 121 and 122. And the duct member 118 is comprised in the shape inclined in the front-back direction.
- the duct member 118 has either one of the upper and lower cylindrical projections 125 a and 126 a inserted into the duct openings 121 and 122, and the other cylindrical projection 125 a and 126 a is directly partitioned into the inner box 111. It can be inserted into the other duct openings 121 and 122 by being pushed in along the walls 115a and 116a. Therefore, the duct member 118 can be easily attached, the productivity is improved, and the urethane foam 112 can be more reliably prevented from entering from the duct openings 121 and 122, thereby inhibiting the flow of cold air through the duct member 118. This can further contribute to the maintenance and improvement of energy saving.
- the duct member 118 includes a cool air outward duct 125 and a return duct 126, and the upper inner box 115 and the lower inner duct 115 in a state where the outward duct 125 and the return duct 126 are integrated by the flange portion 127.
- the rear ends of the box 116 are connected to each other.
- the inner box 111 of the refrigerator 100 is an integrated component in which an upper inner box 115 and a lower inner box 116 are integrally connected by a front plate portion 117. Therefore, a process for forming a refrigerator compartment or a freezer compartment by incorporating a partition plate in one inner box 111 becomes unnecessary, and productivity is improved.
- the upper inner box 115 and the lower inner box 116 are connected to the rear end portions of the upper inner box 115 and the lower inner box 116 on the side opposite to the front plate portion 117 for the cold air passage. They are connected by a cylindrical duct member 118.
- the rigidity can be made higher than the state which connected the upper inner box 115 and the lower inner box 116 integrally by the front-surface board part 117, and was comprised. Therefore, when the inner box 111 is moved to be incorporated into the outer box 110 during the production process, the upper inner box 115 and the lower inner box 116 are smoothly moved without causing torsional damage or the like of the front plate portion 117. And productivity can be improved. In addition, it is possible to prevent deterioration in quality and yield due to breakage of the front plate 117 or the like.
- the thickness of the front plate portion 117 is made thicker than the plate thickness of the box peripheral wall of the inner box 111, and the strength is increased correspondingly, so that the occurrence of deformation or the like is more reliably performed.
- the configuration is such that it can be prevented. Thereby, when the 1st door 113 or the 2nd door 114 is opened, the deformation
- refrigerator 100 of the present embodiment what connects the rear end portions of upper inner box 115 and lower inner box 116 is cylindrical duct member 118, and between partition wall portions 115a and 116a of other portions.
- the entire area is filled with urethane foam 112. Therefore, the inner box on the higher set temperature side, in this embodiment, the upper inner box 115 serving as a refrigerator room or a vegetable room, and the inner box on the lower set temperature side, that is, the lower inner box 116 serving as a freezer room.
- the heat insulating property between the partition wall portions 115a and 116a is good. As a result, it is possible to strongly suppress heat transfer from the upper inner box 115 to the lower inner box 116, and accordingly, the frequency of cooling the lower inner box 116 is reduced, thereby reducing power consumption. be able to.
- the lower cylindrical convex portions 125a and 126a are connected to the partition wall portion of the lower inner box 116, either above or below the cylindrical convex portions 125a and 126a protruding from the flange portion 127 of the duct member 118. It is inserted and fitted into the forward duct opening 121 and the return duct opening 122 provided in 116a. Then, the upper cylindrical convex portions 125 a and 126 a are pushed in along the lower surface of the partition wall portion 115 a of the upper inner box 115 using the fitted portion as a fulcrum.
- the duct member 118 since the duct member 118 is fitted into the forward duct opening 121 and the return duct opening 122 provided in the partition wall 115a, the duct member 118 can be easily attached. Further, in the present embodiment, since the duct member 118 is inclined in the front-rear direction, the duct member 118 can be pushed into the partition walls 115a and 116a with a light force and can be easily attached. be able to.
- the duct member 118 has a structure in which the cool air outward duct 125 and the return duct 126 are integrated by the flange portion 127. Therefore, the forward duct 125 and the return duct 126 can be attached in a single operation, and the number of work steps can be reduced as compared with the case where they are separately attached, so that productivity can be improved.
- the support portion 128 formed integrally with the flange portion 127 extends along the corner portion connecting the partition wall portions 115 a and 116 a of the upper inner box 115 and the lower inner box 116 and the rear wall portion. It has a shape. Thereby, the support portion 128 reinforces the corner portions of the upper inner box 115 and the lower inner box 116. Further, the holes of the locking portions 129 formed in the support portion 128 are fitted into the protrusions 124 formed on the back wall portions of the upper inner box 115 and the lower inner box 116, respectively.
- the duct member 118 is securely fixed to the upper inner box 115 and the lower inner box 116, and the upper inner box 115 and the lower inner box 116 are prevented from separating in the vertical direction. Therefore, even if the filling pressure of the foamed urethane 112 is applied between the partition wall portions 115a and 116a of the upper inner box 115 and the lower inner box 116, the space between the partition wall portions 115a and 116a is prevented from being expanded by the filling pressure. Since the positions of the upper inner box 115 and the lower inner box 116 can be maintained with high accuracy, the occurrence of defective products can be prevented.
- the flange portion 127 of the duct member 118 is formed so that when the cylindrical convex portions 125a and 126a of the duct member 118 are fitted to the forward duct opening 121 and the return duct opening 122, the partition wall portions 115a and 116a The periphery of the forward duct opening 121 and the return duct opening 122 is covered. This prevents the foamed urethane 112 from entering the interior from the forward duct opening 121 and the return duct opening 122 due to the filling pressure when the foamed urethane 112 is filled between the partition wall portions 115a and 116a. Can do.
- the forward duct opening 121 and the return duct opening 122 into which the cylindrical convex portions 125a and 126a of the duct member 118 are fitted are at least one of the upper inner box 115 and the lower inner box 116 having the larger volume.
- the inner box is provided in the partition wall portions 115a and 116a corresponding to the cold air passage portion 120 between the projecting portions 119a and 119b provided in the back wall portion of the upper inner box 115 in the present embodiment.
- the strength in the vicinity of the forward duct opening 121 and the return duct opening 122 is improved by the protrusions 119a and 119b. More specifically, the protrusions 119a and 119b increase the strength of the upper inner box 115 near the forward duct opening 121 and the return duct opening 122, which tend to be relatively large in volume and relatively weak in strength. .
- the inner box wall surface in the vicinity of the forward duct opening 121 and the return duct opening 122 is deformed, and the foamed urethane 112 becomes the duct member 118. Can be prevented from entering the inside. Thereby, it is possible to prevent the flow of the cool air passing through the duct member 118 from being obstructed, to exhibit a good cooling performance, and to rotate the cool air circulation blower fan 104 with an increase in passage resistance. Since increase can be suppressed, it can contribute to energy saving maintenance.
- the wider outgoing duct 125 is provided with a partition wall 125b as shown in FIG. 9A.
- the partition wall 125b can improve the strength of the forward duct 125, and even a wide duct can be prevented from being deformed by the foaming pressure of the urethane foam 112 to reduce the passage area. . Therefore, the flow of cold air is not hindered, good cooling performance can be exhibited, and the increase in the number of rotations of the cooling air circulation fan 104 accompanying an increase in passage resistance can be suppressed, thus saving energy. Can contribute to the maintenance of sex.
- the protrusion 124 for fitting the engaging portion 129 of the duct member 118 is an inner box having at least a larger volume of the upper inner box 115 and the lower inner box 116, and in this embodiment, the rear surface of the upper inner box 115. It is provided in the cool air passage portion 120 between the projecting portions 119a and 119b provided in the wall portion.
- the cool air passage portion 120 is covered with a duct plate that is attached to the projecting portions 119a and 119b from the inner surface of the inner box to form a duct passage. Therefore, the protrusion 124 is also covered and hidden from the inner surface side of the upper inner box 115. Therefore, the protrusions 124 formed on the back wall of the inner box are not visible from the inside of the inner box, and the quality of the refrigerator 100 is not lowered.
- the duct member 118 has been described by using the one in which the forward duct 125 and the return duct 126 are integrated.
- the duct member 118 may be configured separately, and each of the upper inner box 115 and the lower inner box 116 may be provided.
- the provided protruding portion 124 may be configured as a recessed portion that is recessed toward the inner surface of the inner box, and the locking portion 129 may be configured as a protruding portion that fits into the recessed portion.
- the protrusions 124 or the recesses provided on the back wall portion are formed in a portion that becomes a duct passage portion between the pair of protrusions 119a and 119b, and the pair of protrusions from the inner surface side of the inner box 111.
- the projections 124 or the recesses are covered and hidden from the inner surface side of the inner box 111 by the duct plates attached to 119a and 119b.
- the protrusions 124 or recesses formed on the back wall of the inner box 111 are not visible from the inside of the inner box 111, and the quality of the refrigerator 100 is not degraded.
- the flange portion 127 includes a support portion 128 having a shape along a corner portion that connects the partition wall portions 115a and 116a of the upper inner box 115 and the lower inner box 116 to the rear wall portion.
- a protrusion 124 or a recess is formed on the back wall of the lower inner box 116.
- the support 128 is fixed to the upper inner box 115 and the lower inner box 116 by fitting into the protrusion 124 or the recess, and prevents the upper inner box 115 and the lower inner box 116 from being separated in the vertical direction.
- An engaging portion 129 is provided.
- the corner portions of the upper inner box 115 and the lower inner box 116 can be reinforced by the support portion 128 provided on the flange portion 127 of the duct member 118. Furthermore, even when the filling pressure of the foamed urethane 112 is applied between the partition wall portions 115a and 116a by fitting the locking portion 129 provided on the support portion 128 into the protrusion or the recess, the space between the partition wall portions 115a and 116a is increased. Can be prevented from being spread by the filling pressure. Therefore, the position of the upper inner box 115 and the lower inner box 116 can be maintained with high accuracy and the occurrence of defective products can be prevented.
- the refrigerator 100 in the present embodiment includes a metal outer box 110, a resin inner box 111 disposed in the outer box 110, and having an upper inner box 115 and a lower inner box 116,
- the refrigerator main body 101 comprised by the urethane foam 112 filled between the outer box 110 and the inner box 111 is provided.
- the front plate part 117 integrally connecting the upper inner box 115 and the lower inner box 116 and the rear end parts of the upper inner box 115 and the lower inner box 116 on the side opposite to the front plate part 117 are connected to each other.
- a cylindrical duct member 118 for the cold air passage Further, urethane foam 112 is filled in the entire area between the partition walls 115a and 116a of the upper inner box 115 and the lower inner box 116, respectively.
- the cylindrical duct member 118 is positioned between the partition wall portions 115a and 116a of the upper inner box 115 and the lower inner box 116, and other portions, that is, between the partition wall portions 115a and 116a.
- the whole area is filled with foamed urethane 112 having high heat insulating properties. Accordingly, the heat insulation between the upper inner box 115 and the lower inner box 116 is also improved, and the heat transfer from one of the upper inner box 115 and the lower inner box 116 to the other is suppressed to reduce the power consumption for cooling. can do.
- FIG. 10 is a front view of the refrigerator 200 according to the second embodiment of the present invention
- FIG. 11 is a front view showing the internal structure of the refrigerator 200
- FIG. 12 is a side view of the refrigerator 200.
- FIG. 13 is a cross-sectional view of the refrigerator 200 as viewed from above.
- 14 is a front view showing the flow of cold air in the refrigerator 200
- FIG. 15 is a perspective view showing the refrigerator main body 201 of the refrigerator 200
- FIG. 16 shows the inner box 205 of the refrigerator 200. It is the perspective view seen from the back side
- FIG. 17 is the perspective view which expanded the principal part of FIG.
- FIG. 18 is a perspective view of the cooling chamber case 214 of the refrigerator 200 as viewed from above, FIG.
- FIG. 19 is a perspective view of the cooling chamber case 214 of the refrigerator 200 as viewed from the back side
- FIG. FIG. 3 is an enlarged view showing a cross-sectional configuration of the upper and lower inner boxes 205a and 205b of the refrigerator 200 connected by duct members 215 to 217.
- 21 is an explanatory diagram when foaming filler is filled between the upper inner box 205a and the lower inner box 205b and the outer box 204 of the refrigerator 200
- FIG. FIG. 21 is an enlarged view showing a connection cross-sectional configuration by duct members 215 to 217 in a part different from FIG. 20 of the inner box 205a and the lower inner box 205b.
- the refrigerator 200 in the present embodiment is a top freezer type refrigerator having a freezer compartment 202 at the top of the refrigerator main body 201 and a refrigerator compartment 203 at the bottom thereof.
- the refrigerator main body 201 includes a metal (for example, iron plate) outer box 204 that opens forward, a hard resin (for example, ABS) inner box 205, an outer box 204, and an inner box 205.
- the front surfaces of the freezer compartment 202 and the refrigerator compartment 203 of the refrigerator main body 201 are configured to be openable and closable by rotatable doors 207 and 208 having heat insulation properties by the same configuration as the refrigerator main body 201.
- the freezer compartment 202 is set to a temperature of about ⁇ 20 ° C.
- the refrigerator compartment 203 is set to a temperature at which food is not frozen, usually about 1 ° C. to 5 ° C.
- the temperature difference between the freezer compartment 202 and the refrigerator compartment 203 is large, and the heat insulation between these two rooms has a great influence on the reduction of power consumption.
- cooling chamber 209 on the back of the freezer compartment 202 of the refrigerator main body 201, and a cooler 210 that generates cold air and a blower fan 211 that supplies the cold air to each chamber are provided.
- a compressor 212 is provided at the back of the lower surface of the main body of the refrigerator main body 201.
- a refrigerant is enclosed in a refrigeration cycle in which a condenser, a heat radiating pipe, a capillary tube, and a cooler 210 are sequentially connected in an annular shape, and a cooling operation is performed.
- the inner box 205 of the refrigerator main body 201 is formed by integrally forming an upper inner box 205a constituting the freezer compartment 202 and a lower inner box 205b constituting the refrigerator compartment 203 by vacuum forming. Yes. That is, the inner box 205 is an integrated component in which the upper inner box 205a and the lower inner box 205b are integrally connected by the front plate portion 205c on the front surface thereof.
- a cooling chamber case 214 constituting a part of the cooling chamber 209 is attached to the inner box 205 on the back surface of the upper inner box 205 a opposite to the front plate portion 205 c. ing.
- the cylindrical duct members 215 to 217 provided in the cooling chamber case 214 are attached to the back surface side of the lower inner box 205b, so that the back surfaces of the upper inner box 205a and the lower inner box 205b are connected to each other. .
- connection configuration of the upper inner box 205a and the lower inner box 205b by the duct members 215 to 217 will be described in more detail with reference to FIGS.
- the cooling chamber case 214 is formed in a substantially square dish shape so as to cover the lower opening of the cooling chamber 209 on the back surface of the freezing chamber 202.
- duct members 215 and 216 are formed on both sides of the rear wall of the cooling chamber case 214, and another duct member 217 is integrally formed at a substantially central position between the duct members 215 and 216. Is formed.
- a flange portion 218 and a connecting tube portion 219 are formed below the duct members 215 to 217.
- a locking piece 221 having a locking hole 220 is formed integrally with the flanges 218 of the duct members 215 and 216 on both sides and the substantially central portion of the back wall of the cooling chamber case 214.
- a cold air duct 222 for supplying cold air into the lower inner box 205b and a cold air duct 222 are sandwiched between Cold air return ducts 223 and 224 (see also FIGS. 16 and 17) for returning the cold air in the lower inner box 205b to the cooling chamber 209 are provided on the upper sides of both sides.
- Each duct opens at the upper surface of the lower inner box 205b and constitutes a connection port 225 (see FIGS. 20 and 22).
- a locking projection 226 is formed on the substantially central portion of the back surface of the upper inner box 205a and the back surfaces of the cold air return ducts 223 and 224 on both sides.
- the cooling chamber case 214 is applied to the bottom surface of the upper inner box 205a so as to cover the cooling chamber 209 from the bottom of the upper inner box 205a, and the locking hole of the substantially central locking piece 221 on the back surface thereof.
- the upper inner box 205a is attached to the upper inner box 205a by engaging and engaging 220 with a substantially central locking protrusion 226 on the back surface of the upper inner box 205a. Further, in this state, the connection tube portions 219 of the duct members 215 to 217 formed in the cooling chamber case 214 are fitted into the connection ports 225 of the cool air duct 222 and the cool air return ducts 223 and 224 of the lower inner box 205b.
- the locking holes 220 of the locking pieces 221 provided in the duct members 215 and 216 on both sides are fitted and engaged with the locking protrusions 226 on the back surface of the lower inner box 205b.
- the cooling chamber case 214 and the duct members 215 to 217 thereof can be attached to the upper inner box 205a and the lower inner box 205b, and both can be integrally connected.
- the flange portions 218 of the duct members 215 to 217 are configured to press-contact and cover the peripheral portions of the connection ports 225 of the lower inner box 205b.
- the duct member 217 at the substantially central portion is connected to the central portion of the cooling chamber 209, that is, the central portion of the cooler 210, and serves as a cool air going-out duct from the cooler 210.
- the cool air in the central part 210 is supplied.
- the duct members 215 and 216 on both sides are connected to the left and right side portions of the cooling chamber 209, that is, both side portions of the cooler 210, and serve as a cold air return duct to the cooler 210, from the cold air return ducts 223 and 224.
- the structure is such that the cool air returns to both sides of the cooler 210.
- the cold air duct 222 is provided with cold air outlets 227 on both sides thereof, so that the cold air is blown out toward both front sides of the refrigerator compartment 203 in the lower inner box 205b. It is configured. Further, as shown in FIG. 12, the refrigerator compartment 203 is divided into a plurality of upper and lower spaces by a storage shelf 228, and a chilled compartment 229 as shown in FIG. 11 is provided at the upper right portion of the uppermost refrigerator compartment space. An accessory storage chamber 230 is provided on the left side. Moreover, as shown in FIG. 12, the vegetable storage box 231 and the fruit storage box 232 are incorporated in the space of the lowermost refrigerator compartment 203 so that pull-out is possible.
- the refrigerator 200 is an integrated component in which the upper inner box 205a and the lower inner box 205b are integrally connected by the front plate part 205c, a partition plate is incorporated in one inner box 205, and the refrigerator compartment 203 or A process for forming the freezer compartment 202 or the like is not necessary, and productivity can be improved.
- the inner box 205 has an upper inner box 205a and a lower inner box 205b, and the cooling chamber case 214 and the lower inner box 205b are arranged on the back surfaces of the upper inner box 205a and the lower inner box 205b opposite to the front plate part 205c. And are connected by cylindrical duct members 215 to 217 provided in the inner space. Therefore, the rigidity is higher than that in which the upper inner box 205a and the lower inner box 205b are simply connected together by the front plate portion 205c.
- the inner box 205 when the inner box 205 is moved to be incorporated into the outer box 204 during the production process, the movement of the upper inner box 205a and the lower inner box 205b is caused by the front plate portion 205c for connecting the upper inner box 205a and the lower inner box 205b. Therefore, productivity can be further improved. In addition, it is possible to prevent quality deterioration and yield reduction due to damage to the front plate portion 205c.
- the duct members 215 to 217 connect the upper inner box 205a and the lower inner box 205b at three locations, that is, both sides of the cooling chamber case 214 and the center front thereof. Therefore, the back portion of the upper inner box 205a can be supported and connected in a well-balanced manner, and the effect of preventing torsional breakage and the like can be enhanced, and quality deterioration and yield reduction can be more reliably prevented.
- the thickness of the front plate portion 205c is made thicker than the thickness of the peripheral wall of the inner box 205 so that the strength is improved and the occurrence of deformation or the like can be prevented more reliably. It is configured. Thereby, the deformation
- the back surfaces of the upper inner box 205a and the lower inner box 205b are connected to the cylindrical duct members 215 to 217 formed integrally with the cooling chamber case 214.
- the foam insulation material 206 is filled in the entire gap between the upper inner box 205a and the lower inner box 205b. Therefore, the heat insulation between the inner box on the higher set temperature side, in the case of the present embodiment, the lower inner box 205b serving as the refrigerator compartment 203 and the upper inner box 205a serving as the freezer compartment 202 having a lower set temperature. Is better than the case where a dew tray made of polystyrene foam is interposed. As a result, it is possible to strongly suppress heat transfer from the lower inner box 205b to the upper inner box 205a, and accordingly, the frequency of cooling the upper inner box 205a is reduced, thereby reducing power consumption. can do.
- duct members 215 to 217 that connect the upper inner box 205a and the lower inner box 205b, duct members 215 and 216 provided on both sides of the back wall of the cooling chamber case 214 are connected to the cooler 210 through the cool air return duct. And a duct member 217 provided in front of the cooling medium 210 is used as a cool air going-out duct from the cooler 210. Thereby, efficient cooling becomes possible and power consumption can be further reduced.
- the slightly cooler air returning from the refrigerating chamber 203 of the lower inner box 205b returns to the outer peripheral portion of the cooler 210 from the duct members 215 and 216 on both sides to be the cold air reflux duct, and returns to the outer peripheral portion of the cooler 210.
- the cool air having a slightly higher temperature is cooled while flowing from the outer peripheral portion to the central portion of the cooler 210, and becomes the lowest temperature state.
- This cool air having the lowest temperature is supplied from the duct member 217 serving as the cool air going-out duct in the central portion to the cool air duct 222 of the refrigerating chamber 203, so that the slightly higher refrigerating air recirculated from the refrigerating chamber 203 or the like remains as it is.
- Supply to the duct member 217 in the central portion is eliminated, and a synergistic action between the two enables efficient cooling, and power consumption can be further reduced accordingly.
- connection tube portions 219 of the duct members 215 to 217 formed in the cooling chamber case 214 are connected to the connection ports 225 of the cool air duct 222 and the cool air return ducts 223 and 224 of the lower inner box 205b. Fit.
- the engaging holes 220 of the engaging pieces 221 provided in the duct members 215 and 216 on both sides are fitted into the engaging protrusions 226 on the back surface of the lower inner box 205b, the duct members 215 to 217 are engaged.
- Each flange portion 218 is configured to press-contact and surround the peripheral portion of each connection port 225 of the lower inner box 205b.
- the foam heat insulating material 206 when the foam heat insulating material 206 is filled between the outer box 204 and the inner box 205, the foam heat insulating material 206 can be prevented from entering the inside through the connection port 225, and the cold air passing through the duct members 215 to 217 can be prevented. It is possible to prevent the flow of water from being hindered and to exhibit good cooling performance. Moreover, since it is possible to suppress an increase in the number of rotations of the cool air circulation blower fan due to an increase in passage resistance, it is possible to reduce power consumption and contribute to maintenance of energy saving.
- connection port 225 above the cold air duct 222 of the lower inner box 205b with which the duct member 217 in the central portion is fitted is located on the ceiling surface of the lower inner box 205b, that is, a plane portion weak in strength. Due to the foaming pressure of the material 206, the outer peripheral portion of the connection port 225 is easily deformed inwardly of the lower inner box 205b. However, in the present embodiment, since the flange portion 218 of the duct member 217 covers and reinforces the peripheral portion of the connection port 225, such deformation can be reliably prevented.
- a jig A is set inside the lower inner box 205b to prevent deformation of the inner box due to foaming pressure.
- the connection tube portion 219 of the duct member 217 protrudes inward of the lower inner box 205b. Will cause a gap t. Therefore, the outer peripheral portion of the connection port 225 of the lower inner box 205b is easily deformed by the gap t.
- the peripheral portion of the connection port 225 is covered and reinforced by the flange portion 218, such deformation can be prevented.
- the connecting tube portion 219 of the duct members 215 to 217 is inserted into the lower inner box 205b to secure the fitting connection, and the peripheral portion of the connection port 225 is moved inward of the lower inner box 205b. It is possible to prevent the cold air from leaking due to the deformation and a gap between the duct member 217 and the connecting cylinder portion 219, thereby improving the quality and further reducing the power consumption.
- the cooling chamber case 214 and its duct members 215 to 217 are formed so that the engaging hole 220 of the substantially central engaging piece 221 on the back surface of the cooling chamber case 214 and the substantially central portion on the back surface of the upper inner box 205a.
- the locking projection 226 is fitted.
- the locking holes 220 of the locking pieces 221 of the duct members 215 and 216 on both sides of the back surface are fitted into the locking protrusions 226 on the back surface of the lower inner box 205b, and are engaged with the upper inner box 205a and the lower inner box 205b. ing.
- the upper inner box 205a and the lower inner box 205b can be reliably connected and fixed, and even if the foaming pressure of the foam heat insulating material 206 is applied between the upper inner box 205a and the lower inner box 205b, It is possible to prevent the lower inner box 205b from being expanded by the foaming pressure. Therefore, it is possible to maintain the positions of the upper inner box 205a and the lower inner box 205b with high accuracy and prevent the generation of defective products.
- the refrigerator of the present invention is not limited to the configuration shown in the present embodiment, and can be appropriately changed within the scope of achieving the object of the present invention.
- the engagement between the cooling chamber case 214 and its duct members 215 to 217 and the upper inner box 205a and the lower inner box 205b is realized by a combination of holes and protrusions. It may be a combination.
- the upper inner box 205a is described as the freezer compartment 202 and the lower inner box 205b is described as the refrigerator compartment 203, but the reverse may be possible.
- the refrigerator 200 includes the outer box 204 that forms the outside of the refrigerator main body 201, the inner box 204, and the upper inner box 205a and the lower inner box 205b. And an integrally structured inner box 205 connected together by a front plate portion 205c. Also, a foam heat insulating material 206 filled between the outer box 204 and the inner box 205, a cooler 210 disposed on the back surface of the upper inner box 205a, and an upper inner so as to be positioned below the cooler 210.
- a cooling chamber case 214 having duct members 215 to 217 attached to the rear portion of the box 205a and connecting the upper inner box 205a and the lower inner box 205b is provided.
- the cooling chamber case 214 has duct members 215 to 217 at three positions, that is, both sides of the back wall and a substantially intermediate front portion on both sides, and the duct members 215 to 217 are attached to the upper inner box 205a.
- the rear part of the upper inner box 205a and the rear part of the lower inner box 205b are connected and fixed.
- cylindrical duct members 215 to 217 are located between the upper inner box 205a and the lower inner box 205b, and other parts, that is, the upper inner box 205a and the lower inner box 205b The whole area between them is filled with a foam heat insulating material 206 having a high heat insulating property. Therefore, the heat insulation between the upper inner box 205a and the lower inner box 205b becomes good, and heat transfer from one of the upper inner box 205a and the lower inner box 205b to the other is suppressed, and power consumption for cooling is reduced. can do.
- the duct members 215 to 217 that connect the upper inner box 205a and the lower inner box 205b are used as cold air reflux ducts to the cooler.
- the duct member 217 provided substantially in front of both sides is used as a cold air duct from the cooler.
- the slightly higher temperature of the cold air flowing back from the refrigerator compartment 203 or the like returns to the outer peripheral portion of the cooler 210 from the duct members 215 and 216 on both sides, and from the duct member 217 in the central portion, the outer periphery of the cooler 210. Cooling air having the lowest temperature cooled while flowing from the portion to the central portion is supplied from the duct member 217 at the central portion to the refrigerator compartment 203 or the like. In addition, since a slightly higher temperature of the cold air flowing back from the refrigerator compartment 203 or the like is not supplied as it is from the duct member 217 in the central portion, efficient cooling is possible, and power consumption is further reduced by that amount. can do.
- the duct members 215 to 217 at substantially the center and both sides of the rear surface of the cooling chamber case 214 are provided with locking pieces 221 with locking holes 220, and the lower rear surface of the upper inner box 205a and the lower inner box 205b.
- Locking protrusions 226 are provided on the upper portions on both sides of the back surface.
- the locking hole 220 of the locking piece 221 provided in the substantially center of the back surface of the cooling chamber case 214 and the duct members 215 and 216 is formed in the locking protrusions 226 of the upper inner box 205a and the lower inner box 205b.
- the upper inner box 205a and the lower inner box 205b can be reliably connected and fixed, and the foaming pressure of the foam heat insulating material 206 can be prevented from being expanded between the upper inner box 205a and the lower inner box 205b. It is possible to maintain the positions of the upper inner box 205a and the lower inner box 205b with high accuracy and prevent the occurrence of defective products.
- FIG. 23 is a front view of the refrigerator 300 according to the third embodiment of the present invention
- FIG. 24 is a front view showing the internal structure of the refrigerator 300
- FIG. 25 is a side view of the refrigerator 300.
- FIG. 26 is a cross-sectional view of the refrigerator 300 as viewed from above.
- 27 is a front view showing the flow of cold air in the refrigerator 300
- FIG. 28 is a perspective view showing the refrigerator main body 301 of the refrigerator 300
- FIG. 29 shows the inner box 305 of the refrigerator 300.
- FIG. 30 is the perspective view which expanded the principal part of FIG.
- FIG. 31 is a perspective view of the cooling chamber case 314 of the refrigerator 300 as viewed from above, FIG.
- FIG. 32 is a perspective view of the cooling chamber case 314 of the refrigerator 300 as viewed from the back side
- FIG. 3 is an enlarged view showing a cross-sectional configuration of the upper and lower inner boxes 305a and 305b of the refrigerator 300 connected by duct members 315 to 317.
- FIG. FIG. 34 is an explanatory diagram when foaming filler is filled between the upper inner box 305a and the lower inner box 305b and the outer box 304 of the refrigerator 300
- FIG. FIG. 35 is an enlarged view showing a connection cross-sectional configuration by duct members 315 to 317 in a portion different from FIG. 34 of the inner box 305a and the lower inner box 305b.
- the refrigerator 300 in the present embodiment is a top freezer type refrigerator having a freezer compartment 302 in the upper part of the refrigerator main body 301 and a refrigerator compartment 303 in the lower part thereof.
- the refrigerator main body 301 includes a metal (for example, iron plate) outer box 304 that opens forward, a hard resin (for example, ABS) inner box 305, an outer box 304, and an inner box 305.
- a hard foam heat insulating material 306, for example, urethane foam, filled with foam in between is provided.
- the front surfaces of the freezer compartment 302 and the refrigerator compartment 303 of the refrigerator main body 301 are configured to be freely opened and closed by rotatable doors 307 and 308 having heat insulation properties similar to those of the refrigerator main body 301.
- the freezer compartment 302 is set to a temperature of about ⁇ 20 ° C.
- the refrigerator compartment 303 is set to a temperature at which food is not frozen, usually about 1 ° C. to 5 ° C.
- the temperature difference between the freezer compartment 302 and the refrigerator compartment 303 is large, and the heat insulation between these two rooms has a great influence on the reduction of power consumption.
- cooling chamber 309 on the back of the freezer compartment 302 of the refrigerator body 301, and a cooler 310 that generates cool air and a blower fan 311 that supplies the cool air to each chamber are provided.
- a compressor 312 is provided at the back of the main body lower surface of the refrigerator main body 301.
- a refrigerant is enclosed in a refrigeration cycle in which a condenser, a heat radiating pipe, a capillary tube, and a cooler 310 are sequentially connected in an annular shape, and a cooling operation is performed.
- the inner box 305 of the refrigerator main body 301 is formed by integrally forming an upper inner box 305a constituting the freezer compartment 302 and a lower inner box 305b constituting the refrigerator compartment 303 by vacuum forming. Yes. That is, the inner box 305 is an integrated component in which the upper inner box 305a and the lower inner box 305b are integrally connected by the front plate portion 305c on the front surface.
- a cooling chamber case 314 that constitutes a part of the cooling chamber 309 is attached to the inner box 205 on the back surface of the upper inner box 305 a opposite to the front plate portion 305 c. ing.
- the cylindrical duct members 315 to 317 provided in the cooling chamber case 314 are attached to the back side of the lower inner box 305b, so that the back parts of the upper inner box 305a and the lower inner box 305b are connected to each other. .
- connection configuration of the upper inner box 305a and the lower inner box 305b by the duct members 315 to 317 will be described in more detail with reference to FIGS.
- the cooling chamber case 314 is formed in a substantially square dish shape so as to cover the lower opening of the cooling chamber 309 on the back surface of the freezing chamber 302.
- duct members 315 and 316 are formed on both sides of the back wall of the cooling chamber case 314, and another duct member 317 is integrated at a substantially central position in front of the duct members 315 and 316. Is formed.
- a flange portion 318 and a connecting tube portion 319 are formed below the duct members 315 to 317.
- a locking piece 321 having a locking hole 320 is formed integrally with the flange portion 318 of each duct member 315, 316 on both sides and the substantially central portion of the back wall of the cooling chamber case 314.
- a cold air duct 322 for supplying cold air into the lower inner box 305b and a cold air duct 322 are sandwiched between Cold air return ducts 323 and 324 (see also FIGS. 29 and 30) for returning the cold air in the lower inner box 305b to the cooling chamber 309 are provided on the upper sides of both sides.
- Each duct opens at the upper surface of the lower inner box 305b and constitutes a connection port 325 (see FIGS. 33 and 35).
- a locking projection 326 is formed on the substantially central portion of the back surface of the upper inner box 305a and on the back surfaces of the cold air return ducts 323 and 324 on both sides.
- the cooling chamber case 314 is applied to the bottom surface of the upper inner box 305a so as to cover the cooling chamber 309 from the bottom of the upper inner box 305a, and the locking hole of the substantially central locking piece 321 on the back surface thereof.
- 320 is attached to the upper inner box 305a by engaging and engaging with a substantially central locking projection 326 on the back surface of the upper inner box 305a. Further, in this state, the connection tube portions 319 of the duct members 315 to 317 formed in the cooling chamber case 314 are fitted into the connection ports 325 of the cool air duct 322 and the cool air return ducts 323 and 324 of the lower inner box 305b.
- the locking holes 320 of the locking pieces 321 provided in the duct members 315 and 316 on both sides are fitted into and engaged with the locking protrusions 326 on the back surface of the lower inner box 305b. Accordingly, the cooling chamber case 314 and the duct members 315 to 317 can be attached to the upper inner box 305a and the lower inner box 305b, and both can be integrally connected. At this time, the flange portions 318 of the duct members 315 to 317 are configured to be pressed against and cover the peripheral portions of the connection ports 325 of the lower inner box 305b.
- the duct member 317 at the substantially central portion is connected to the central portion of the cooling chamber 309, that is, the central portion of the cooler 310, and serves as a cool air going-out duct from the cooler 310.
- the cool air in the central portion 310 is supplied.
- the duct members 315 and 316 on both sides are connected to the left and right side portions of the cooling chamber 309, that is, both side portions of the cooler 310, and serve as a cool air recirculation duct to the cooler 310, from the cool air return ducts 323 and 324. The cool air returns to both sides of the cooler 310.
- the cold air duct 322 is provided with cold air outlets 327 on both sides thereof, so that the cold air is blown out toward the front sides of the refrigerator compartment 303 in the lower inner box 305b. It is configured.
- the refrigerator compartment 303 is partitioned into a plurality of upper and lower spaces by a storage shelf 328, and a chilled room 329 as shown in FIG.
- an accessory storage chamber 330 is provided on the left side.
- the vegetable storage box 331 and the fruit storage box 332 are incorporated in the space of the lowermost refrigerator compartment 303 so that extraction is possible.
- the refrigerator 300 is an integrated component in which the upper inner box 305a and the lower inner box 305b are integrally connected by the front plate portion 305c, a partition plate is incorporated in one inner box 305 and the refrigerator compartment 303 or the like. A process for forming the freezer compartment 302 and the like is not necessary, and productivity can be improved.
- the inner box 305 has an upper inner box 305a and a lower inner box 305b, and the cooling chamber case 314 and the inner wall 305b are arranged at the back surfaces of the upper inner box 305a and the lower inner box 305b opposite to the front plate portion 305c.
- the cooling chamber case 314 and the inner wall 305b are arranged at the back surfaces of the upper inner box 305a and the lower inner box 305b opposite to the front plate portion 305c.
- the inner box 305 when the inner box 305 is moved to be incorporated into the outer box 304 during the production process, the movement of the upper inner box 305a and the lower inner box 305b is caused by the front plate portion 305c for connecting the upper inner box 305a and the lower inner box 305b. Therefore, productivity can be further improved. In addition, it is possible to prevent quality deterioration and yield reduction due to breakage of the front plate portion 305c.
- the duct members 315 to 317 connect the upper inner box 305a and the lower inner box 305b at three positions, that is, both sides of the cooling chamber case 314 and the center front thereof. Therefore, the back portion of the upper inner box 305a can be supported and connected in a well-balanced manner, and the effect of preventing torsional breakage and the like can be enhanced, and quality deterioration and yield reduction can be more reliably prevented.
- the thickness of the front plate portion 305c is made thicker than the thickness of the peripheral wall of the inner box 305, so that the strength is improved and the occurrence of deformation or the like can be prevented more reliably. It is configured. Thereby, the deformation
- the upper inner box 305a and the lower inner box 305b are connected to the cylindrical duct members 315 to 317 integrally formed in the cooling chamber case 314 except for the other parts.
- a foam heat insulating material 306 is filled in the entire gap between the upper inner box 305a and the lower inner box 305b. Therefore, in the case of the present embodiment, the inner box on the higher set temperature side, in the case of the present embodiment, the heat insulation between the lower inner box 305b serving as the refrigerating chamber 303 and the upper inner box 305a serving as the freezer compartment 302 having a lower set temperature. Is better than the case where a dew tray made of polystyrene foam is interposed. As a result, it is possible to strongly suppress heat transfer from the lower inner box 305b to the upper inner box 305a, and accordingly, the frequency of cooling the upper inner box 305a is reduced, thereby reducing power consumption. can do.
- duct members 315 to 317 that connect the upper inner box 305 a and the lower inner box 305 b, duct members 315 and 316 provided on both sides of the back wall of the cooling chamber case 314 are connected to the cooler 310. And a duct member 317 provided in front of the cooler 310 is used as a cold air duct from the cooler 310. Thereby, efficient cooling becomes possible and power consumption can be further reduced.
- the cold air having a slightly higher temperature returning from the refrigerating chamber 303 of the lower inner box 305b returns to the outer peripheral portion of the cooler 310 from the duct members 315 and 316 on both sides to be the cold air reflux duct, and returns to the outer peripheral portion of the cooler 310.
- the cool air having a slightly higher temperature is cooled while flowing from the outer peripheral portion of the cooler 310 to the central portion, and becomes the lowest temperature state.
- the cool air having the lowest temperature is supplied from the duct member 317 serving as the cool air going-out duct in the central portion to the cool air duct 322 of the refrigerating chamber 303. Supply to the duct member 317 in the central portion is eliminated, and efficient cooling is possible by the synergistic action of the two, and power consumption can be further reduced accordingly.
- connection cylinder portions 319 of the duct members 315 to 317 formed in the cooling chamber case 314 are connected to the connection ports 325 of the cool air duct 322 and the cool air return ducts 323 and 324 of the lower inner box 305b. Fit. When the locking holes 320 of the locking pieces 321 provided in the duct members 315 and 316 on both sides are fitted and engaged with the locking protrusions 326 on the back surface of the lower inner box 305b, the duct members 315 to 317 are engaged. Each flange portion 318 is configured to be in pressure contact with and cover the peripheral portion of each connection port 325 of the lower inner box 305b.
- the foam heat insulating material 306 when the foam heat insulating material 306 is filled between the outer box 304 and the inner box 305, the foam heat insulating material 306 can be prevented from entering the inside through the connection port 325, and the cold air passing through the duct members 315 to 317 can be prevented. It is possible to prevent the flow of air from being obstructed and to exhibit good cooling performance. Moreover, since it is possible to suppress an increase in the number of rotations of the cool air circulation blower fan due to an increase in passage resistance, it is possible to reduce power consumption and contribute to maintenance of energy saving.
- connection port 325 above the cold air duct 322 of the lower inner box 305b with which the duct member 317 in the central portion is fitted is located on the ceiling surface of the lower inner box 305b, that is, a plane portion weak in strength. Due to the foaming pressure of the material 306, the outer peripheral portion of the connection port 325 is easily deformed inwardly of the lower inner box 305b. However, in this embodiment, since the flange portion 318 of the duct member 317 covers and reinforces the peripheral portion of the connection port 325, such deformation can be reliably prevented.
- a jig AA is set inside the lower inner box 305b to prevent deformation of the inner box due to foaming pressure.
- the connection tube portion 319 of the duct member 317 protrudes inward of the lower inner box 305b. Will cause a gap tt. Therefore, the outer peripheral portion of the connection port 325 of the lower inner box 305b is easily deformed by the gap tt.
- the peripheral portion of the connection port 325 is covered and reinforced by the flange portion 318, such deformation can be prevented.
- the connecting tube portion 319 of the duct members 315 to 317 is inserted into the lower inner box 305b to secure the fitting connection, and the peripheral portion of the connection port 325 is moved inward of the lower inner box 305b. It is possible to prevent the cold air from leaking due to deformation and a gap between the duct member 317 and the connecting tube portion 319, and to improve quality and further reduce power consumption.
- the flange portion 318 has a shape along the peripheral portion of the connection port 325 of the lower inner box 305b, and can be reinforced by covering the peripheral portion of the lower inner box 305b without a gap. Therefore, the foam heat insulating material 306 does not enter between the flange portion 318 and the peripheral portion of the connection port 325 and is not deformed by the foaming pressure, thereby preventing the deformation more reliably and further improving quality and reducing power consumption. Can be planned.
- the cooling chamber case 314 and its duct members 315 to 317 are formed so that the locking hole 320 of the substantially central locking piece 321 on the back surface of the cooling chamber case 314 passes through the substantially central surface on the back surface of the upper inner box 305a.
- the locking projection 326 is fitted.
- the locking holes 320 of the locking pieces 321 of the duct members 315 and 316 on both sides of the back surface are fitted into the locking protrusions 326 on the back surface of the lower inner box 305b to be engaged with the upper inner box 305a and the lower inner box 305b. ing.
- the upper inner box 305a and the lower inner box 305b can be reliably connected and fixed, and even if the foaming pressure of the foam heat insulating material 306 is applied between the upper inner box 305a and the lower inner box 305b, It is possible to prevent the lower inner box 305b from being expanded by the foaming pressure. Therefore, the positions of the upper inner box 305a and the lower inner box 305b can be maintained with high accuracy and the occurrence of defective products can be prevented.
- the refrigerator of the present invention is not limited to the configuration shown in the present embodiment, and can be appropriately changed within the scope of achieving the object of the present invention.
- the engagement of the cooling chamber case 314 and its duct members 315 to 317 with the upper inner box 305a and the lower inner box 305b is realized by a combination of holes and protrusions. It may be a combination.
- the upper inner box 305a is described as the freezer compartment 302 and the lower inner box 305b is described as the refrigerator compartment 303, but the reverse may be possible.
- the refrigerator 300 includes the outer box 304 that forms the outside of the refrigerator body 301, the inner box 304, and the upper inner box 305a and the lower inner box 305b. And an inner box 305 that is an integral component integrally connected by a front plate portion 305c. Further, a foam heat insulating material 306 filled between the outer box 304 and the inner box 305, a cooler 310 disposed on the back surface of the upper inner box 305a, and an upper inner so as to be positioned below the cooler 310.
- a cooling chamber case 314 having duct members 315 to 317 that are attached to the rear portion of the box 305a and connect the upper inner box 305a and the lower inner box 305b is provided.
- the duct members 315 to 317 are fitted and connected to the connection port 325 provided on the ceiling wall of the lower inner box 305b and attached to the lower inner box 305b, and in the vicinity of the connecting cylinder portion 319 of the duct members 315 to 317. Is provided with a flange portion 318, and the flange portion 318 covers the periphery of the connection port 325 of the lower inner box 305b.
- cylindrical duct members 315 to 317 are located between the upper inner box 305a and the lower inner box 305b, and other portions, that is, the upper inner box 305a and the lower inner box 305b The entire region between them is filled with a foam heat insulating material 306 having a high heat insulating property. Therefore, the heat insulation between the upper inner box 305a and the lower inner box 305b becomes good, the heat transfer from one of the upper inner box 305a and the lower inner box 305b to the other is suppressed, and the power consumption for cooling is reduced. can do.
- connection port 325 of the lower inner box 305b to which the duct members 315 to 317 are fitted and connected is covered with a flange portion.
- the connecting cylinder portion 319 of the duct members 315 to 317 is inserted into the lower inner box 305b to secure the fitting connection, and at the same time, it is possible to prevent a cold air leak or the like due to deformation of the peripheral portion of the connection port 325. It is possible to improve quality and further reduce power consumption.
- the flange portion 318 has a shape along the periphery of the connection port 325 of the lower inner box 305b.
- connection port 325 of the lower inner box 305b without any gaps, and more reliably prevent deformation of the periphery of the connection port 325, thereby further improving quality and reducing power consumption. Can do.
- the duct members 315 to 317 for connecting the upper inner box 305a and the lower inner box 305b are configured at three positions, that is, rear portions on both sides and a substantially intermediate front portion thereof, and ducts provided on the rear portions on both sides.
- the members 315 and 316 are used as cool air recirculation ducts to the cooler 310, and the duct member 317 provided substantially in front of the cooler 310 is used as a cool air return duct from the cooler 310.
- the slightly cooler air returning from the refrigerating chamber 303 or the like returns to the outer peripheral portion of the cooler 310 from the duct members 315 and 316 on both sides, and the outer periphery of the cooler 310 from the duct member 317 in the central portion. Cooling air having the lowest temperature cooled while flowing from the portion to the central portion is supplied from the duct member 317 at the central portion to the refrigerator compartment 303 or the like.
- efficient cooling is possible, and power consumption is further reduced accordingly. can do.
- locking members 321 with locking holes 320 are provided in duct members 315 to 317 at substantially the center and both sides of the back surface of the cooling chamber case 314, and the lower back surface of the upper inner box 305a and the lower inner box 305b Locking protrusions 326 are provided on the upper portions on both sides of the back surface.
- the locking hole 320 of the locking piece 321 provided in the substantially center of the back surface of the cooling chamber case 314 and the duct members 315 and 316 is formed in the locking projections 326 of the upper inner box 305a and the lower inner box 305b.
- the upper inner box 305a and the lower inner box 305b can be more reliably connected and fixed, and the foaming pressure of the foam heat insulating material 306 is prevented from being pushed and spread between the upper inner box 305a and the lower inner box 305b. It is possible to maintain the positions of the upper inner box 305a and the lower inner box 305b with high accuracy and prevent the generation of defective products.
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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)
- Refrigerator Housings (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
まず、本発明の第1の実施の形態について説明する。
次に、本発明の第2の実施の形態について説明する。
次に、本発明の第3の実施の形態について説明する。
101,201,301 冷蔵庫本体
102,103 貯蔵室
103a,203,303 冷蔵室
103b 野菜室
104 冷気循環用送風ファン
105,210,310 冷却器
106,209,309 冷却室
110,204,304 外箱
111,205,305 内箱
112 発泡ウレタン
113 第1扉
114 第2扉
115,205a,305a 上内箱
115a,116a 仕切壁部
116,205b,305b 下内箱
117,205c,305c 前面板部
118,215~217,315~317 ダクト部材
119a,119b 突状部
120 冷気通路部
121,122 ダクト開口
124 突起部
125 往用ダクト
125a,126a 筒状凸部
125b 区画壁
126 戻用ダクト
127,218,318 フランジ部
128 支持部
129 係止部
202,302 冷凍室
206,306 発泡断熱材
207,208,307,308 扉
211,311 送風ファン
212,312 圧縮機
214,314 冷却室ケース
219,319 接続筒部
220,320 係止孔
221,321 係止片
222,322 冷気ダクト
223,224,323,324 冷気戻りダクト
225,325 接続口
226,326 係止突起
227,327 冷気吹出し口
228,328 収納棚
229,329 チルド室
230,330 小物収納室
231,331 野菜収納ボックス
232,332 果物収納ボックス
Claims (7)
- 金属製の外箱と、前記外箱内に配置され、上内箱および下内箱を有する樹脂製の内箱と、前記外箱と前記内箱との間に充填された発泡ウレタンとによって構成される冷蔵庫本体と、
前記上内箱と前記下内箱とを一体に連結する前面板部と、
前記上内箱および前記下内箱の、前記前面板部とは反対側の後端部同士を連結する、冷気通路用の筒状のダクト部材とを備え、
前記上内箱および前記下内箱それぞれの仕切壁部間の全域に、前記発泡ウレタンが充填される
冷蔵庫。 - 前記ダクト部材によって連結される前記上内箱および前記下内箱それぞれの前記仕切壁部にはダクト開口が設けられ、
前記ダクト開口に嵌合接続する前記ダクト部材の開口端近傍には、フランジ部が設けられ、
前記開口端が嵌合される前記上内箱および前記下内箱それぞれの前記仕切壁部の前記ダクト開口周縁が、前記フランジ部によって覆われる
請求項1に記載の冷蔵庫。 - 前記ダクト部材の前記ダクト開口への嵌合接続部には、前記フランジ部よりも突出する筒状凸部が設けられ、
前記ダクト開口に前記筒状凸部を挿入することにより、前記ダクト部材が前記ダクト開口に嵌合し、
前記ダクト部材は前後方向に傾斜した形状に構成される
請求項2に記載の冷蔵庫。 - 前記上内箱および前記下内箱のうち、少なくとも容積の大きい方の背面壁部には、冷気通路形成用の一対の突状部が一体形成され、
前記仕切壁の、前記一対の突状部間の冷気通路部と対応する部分に、前記ダクト開口が設けられる
請求項2または請求項3に記載の冷蔵庫。 - 前記ダクト部材は、冷気の往用ダクトおよび戻用ダクトを有し、
前記往用ダクトおよび戻用ダクトが前記フランジ部によって一体化された状態で、前記上内箱および前記下内箱の前記後端部同士が連結される
請求項2から請求項4までのいずれか1項に記載の冷蔵庫。 - 前記フランジ部は、前記上内箱および前記下内箱それぞれの前記仕切壁部と前記背面壁部とをつなぐコーナ部に沿った形状の支持部を有し、
前記上内箱および前記下内箱の前記背面壁部には、突起部または凹部が形成され、
前記支持部には、前記突起部または前記凹部に嵌合して前記上内箱および前記下内箱に固定されるとともに、前記上内箱および前記下内箱の上下方向への離反を阻止する係止部が設けられる
請求項4または請求項5に記載の冷蔵庫。 - 前記背面壁部に設けられた前記突起部または前記凹部は、前記一対の突状部間のダクト通路部となる部分に形成され、
内箱内面側から前記一対の突状部に取り付けられたダクト板によって、前記突起部または前記凹部が前記内箱の内面側から覆い隠される
請求項6に記載の冷蔵庫。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112014030209-0A BR112014030209B1 (pt) | 2012-06-06 | 2013-05-30 | Refrigerador |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2012-128575 | 2012-06-06 | ||
JP2012128575A JP2015158278A (ja) | 2012-06-06 | 2012-06-06 | 冷蔵庫 |
JP2013006025 | 2013-01-17 | ||
JP2013-006025 | 2013-01-17 | ||
JP2013006026 | 2013-01-17 | ||
JP2013-006026 | 2013-01-17 |
Publications (1)
Publication Number | Publication Date |
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WO2013183261A1 true WO2013183261A1 (ja) | 2013-12-12 |
Family
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/003413 WO2013183261A1 (ja) | 2012-06-06 | 2013-05-30 | 冷蔵庫 |
Country Status (2)
Country | Link |
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BR (1) | BR112014030209B1 (ja) |
WO (1) | WO2013183261A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110895076A (zh) * | 2019-11-19 | 2020-03-20 | 长虹美菱股份有限公司 | 一种风冷冰箱风道结构 |
US11378327B2 (en) | 2020-01-10 | 2022-07-05 | Electrolux Home Products, Inc. | Refrigerator appliance and method of forming refrigerator appliance using ultrasonic welding |
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JPH0436591U (ja) * | 1990-07-25 | 1992-03-26 | ||
JPH08296953A (ja) * | 1995-04-27 | 1996-11-12 | Toshiba Corp | 冷蔵庫 |
JPH10232078A (ja) * | 1997-02-20 | 1998-09-02 | Fujitsu General Ltd | 電気冷蔵庫 |
JPH11132625A (ja) * | 1997-10-31 | 1999-05-21 | Sanyo Electric Co Ltd | 冷蔵庫 |
JP2012042204A (ja) * | 2011-10-19 | 2012-03-01 | Panasonic Corp | 冷蔵庫 |
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2013
- 2013-05-30 BR BR112014030209-0A patent/BR112014030209B1/pt active IP Right Grant
- 2013-05-30 WO PCT/JP2013/003413 patent/WO2013183261A1/ja active Application Filing
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JPS63194281U (ja) * | 1987-06-01 | 1988-12-14 | ||
JPS6445270U (ja) * | 1987-09-11 | 1989-03-17 | ||
JPH03255865A (ja) * | 1990-03-05 | 1991-11-14 | Mitsubishi Electric Corp | 冷蔵庫 |
JPH0436591U (ja) * | 1990-07-25 | 1992-03-26 | ||
JPH08296953A (ja) * | 1995-04-27 | 1996-11-12 | Toshiba Corp | 冷蔵庫 |
JPH10232078A (ja) * | 1997-02-20 | 1998-09-02 | Fujitsu General Ltd | 電気冷蔵庫 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110895076A (zh) * | 2019-11-19 | 2020-03-20 | 长虹美菱股份有限公司 | 一种风冷冰箱风道结构 |
US11378327B2 (en) | 2020-01-10 | 2022-07-05 | Electrolux Home Products, Inc. | Refrigerator appliance and method of forming refrigerator appliance using ultrasonic welding |
Also Published As
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BR112014030209A2 (pt) | 2017-06-27 |
BR112014030209B1 (pt) | 2022-01-25 |
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