WO2017010070A1 - 冷蔵庫 - Google Patents

冷蔵庫 Download PDF

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Publication number
WO2017010070A1
WO2017010070A1 PCT/JP2016/003247 JP2016003247W WO2017010070A1 WO 2017010070 A1 WO2017010070 A1 WO 2017010070A1 JP 2016003247 W JP2016003247 W JP 2016003247W WO 2017010070 A1 WO2017010070 A1 WO 2017010070A1
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WO
WIPO (PCT)
Prior art keywords
cold air
temperature storage
storage chamber
heat insulating
insulating material
Prior art date
Application number
PCT/JP2016/003247
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
将裕 山田
芳嘉 紅林
悠介 松田
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN201680040499.6A priority Critical patent/CN107850368A/zh
Publication of WO2017010070A1 publication Critical patent/WO2017010070A1/ja

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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements

Definitions

  • the present invention relates to a refrigerator, and more particularly to a refrigerator in which a low-temperature storage chamber is provided in a refrigerator.
  • a household refrigerator is equipped with a refrigerator room, a vegetable room, a freezer room, and the like.
  • the chilled room includes a chilled room (a room having a temperature range of about 1 ° C. lower than that of the refrigerated room) and a partial room (a room having a slight freezing temperature range of about ⁇ 3 ° C.).
  • a low-temperature storage chamber such as a third temperature zone chamber that can be switched to these is known (for example, see Patent Document 1).
  • FIG. 15 is a schematic cross-sectional view of a low-temperature storage chamber portion of a conventional refrigerator
  • FIG. 16 is an enlarged cross-sectional view of a low-temperature storage chamber of a conventional refrigerator.
  • the refrigerator 100 is provided with a refrigerating room 101 and a low temperature storage room 102 provided at the lower part of the refrigerating room 101.
  • the upper surface of the low-temperature storage chamber 102 is covered with a shelf member 103 that is also used as a shelf located at the lowest level of the refrigerator compartment 101.
  • the shelf member 103 is configured by integrating a heat insulating material 104 and insulates the inside of the low temperature storage chamber 102 from the refrigerator compartment 101 having a relatively high temperature. Further, a cool air duct portion 105 is provided in the heat insulating material 104, and cool air sent from the main body 106 side by the cool air duct portion 105 is supplied into the low temperature storage chamber 102.
  • an inclined surface is provided on the front lower surface of the shelf board member 103, and an illuminating device 107 for irradiating the inside of the low temperature storage chamber 102 is provided on the inclined surface.
  • the low temperature storage chamber 102 can be cooled by blowing cool air from a large number of cool air outlets 108 provided in the cool air duct portion 105.
  • the refrigerating chamber 101 can be cooled to a temperature lower than the temperature in the refrigerating chamber 101, for example, as low as about 1 ° C. or ⁇ 3 ° C. as described above, and meat and fish etc. can be cooled and stored. It is suitable for doing and is useful.
  • the cold air outlet 108 provided in the cold air duct portion 105 is not formed evenly on the entire shelf plate member 103 where the cold air duct portion 105 becomes the ceiling of the low temperature storage chamber 102, and is partially formed in the rear portion. Therefore, the front portion of the low-temperature storage chamber 102 tends to be undercooled, and temperature unevenness tends to occur in the low-temperature storage chamber 102. Further, such temperature unevenness may cause local condensation.
  • the present invention has been made in view of the problems in the conventional refrigerator as described above, and provides a highly reliable refrigerator by suppressing temperature unevenness and condensation in the low-temperature storage chamber.
  • the refrigerator includes a main body, a refrigerating room provided inside the main body, and a low-temperature storage room provided at the lower part of the refrigerating room.
  • the low-temperature storage chamber has a shelf member that constitutes a ceiling, and the shelf member has a heat insulating material that insulates the low-temperature storage chamber from the refrigerator compartment.
  • the heat insulating material is provided with a cold air duct portion for taking in cold air from the cold air passage on the back of the refrigerator main body, and the heat insulating material is provided substantially from the rear end portion of the shelf board member to the front end.
  • the cold air duct portion is formed from the rear portion to the front end portion of the heat insulating material, and the cold air outlets are concentrated on the front end portion of the heat insulating material.
  • a cool air return port is provided at the rear of the low temperature storage chamber.
  • the cool air supplied to the front side of the low temperature storage chamber flows to the cool air return port behind the low temperature storage chamber. That is, since the cold air supplied to the front side of the low temperature storage chamber flows from the front to the rear of the low temperature storage chamber, the low temperature storage chamber can be uniformly cooled. Therefore, temperature unevenness in the low-temperature storage chamber and the occurrence of condensation due to this can be suppressed, and the food can be cooled and stored in a good state, thereby improving reliability.
  • a recess that protrudes toward the upper surface of the shelf member may be formed on the lower surface of the shelf member in the cool air duct portion in the heat insulating material.
  • the refrigerator by an example of embodiment of this invention may be provided with the illuminating device in the recessed part, and the cool air outlet may be provided in the front part rather than the illuminating device.
  • Such a configuration can efficiently illuminate the low temperature storage room, so that the visibility of the inside of the low temperature storage room can be improved. At the same time, even if a lighting device is provided, cold air can be supplied to the front side of the low-temperature storage chamber, and temperature unevenness and condensation in the low-temperature storage chamber can be reliably suppressed.
  • the heat insulating material may include a heat insulating wall zone in an outer peripheral portion of the recess provided with the lighting device.
  • the lighting device is a cold air duct portion through which the cold air flows, the cold air flowing in the cold air duct portion is insulated by the heat insulating wall zone around the recess provided with the lighting device. Accordingly, since the lighting device is not supercooled and condensation does not occur in the lighting device, it is possible to achieve uniform cooling in the low-temperature storage chamber and to prevent the lighting device from failing due to condensation.
  • a heater may be disposed on a bottom surface portion facing the rear end portion of the shelf member in the low temperature storage chamber.
  • Such a configuration makes it possible to suppress overcooling in the vicinity of the back portion of the low-temperature storage room, which is likely to be lowered in temperature due to cold radiation from low-temperature cold air from the cold air passage on the back of the main body. Therefore, temperature unevenness and dew condensation in the low temperature storage chamber can be more reliably suppressed, and the reliability can be further improved.
  • the main body includes a water supply tank chamber for ice making at the side of the low temperature storage chamber, and a heater is disposed at a portion adjacent to the water supply tank chamber at the bottom of the low temperature storage chamber. May be.
  • the low temperature storage chamber is provided to extend to the side of the water supply tank chamber, and it is possible to improve the reliability by suppressing the temperature unevenness and the occurrence of condensation inside the low temperature storage chamber in which the interior is expanded.
  • FIG. 1 is a front view of the refrigerator in the embodiment of the present invention.
  • FIG. 2 is a front view when the refrigerator door in the embodiment of the present invention is opened.
  • FIG. 3 is a longitudinal sectional view of the refrigerator in the embodiment of the present invention.
  • FIG. 4 is an enlarged perspective view of a low-temperature storage room provided in the lower part of the refrigerator compartment of the refrigerator in the embodiment of the present invention.
  • FIG. 5 is an enlarged cross-sectional view of the low-temperature storage room of the refrigerator in the embodiment of the present invention.
  • FIG. 6 is an exploded perspective view of the shelf member of the low-temperature storage chamber of the refrigerator in the embodiment of the present invention.
  • FIG. 7 is a perspective view of the shelf member of the low-temperature storage chamber of the refrigerator according to the embodiment of the present invention as viewed from above.
  • FIG. 8 is the perspective view which looked at the shelf board member of the low-temperature storage room of the refrigerator in embodiment of this invention from the downward direction.
  • FIG. 9 is a plan view showing a state in which the upper heat insulating material of the shelf member of the low temperature storage room of the refrigerator in the embodiment of the present invention is removed.
  • FIG. 10 is a plan view showing the bottom of the low-temperature storage room of the refrigerator in the embodiment of the present invention.
  • 11 is a cross-sectional view taken along the line 11-11 in FIG. FIG.
  • FIG. 12 is an explanatory diagram showing an illumination state when the low-temperature storage chamber container of the refrigerator in the embodiment of the present invention is pulled out.
  • 13 is a cross-sectional view taken along line 13-13 of FIG.
  • FIG. 14 is a diagram for explaining an illumination state in the low-temperature storage room of the refrigerator in the embodiment of the present invention.
  • FIG. 15 is a schematic sectional drawing which shows the low temperature store room part of the conventional refrigerator.
  • FIG. 16 is an enlarged cross-sectional view illustrating a configuration of a low-temperature storage chamber of a conventional refrigerator.
  • FIG. 1 is a front view of a refrigerator in the embodiment of the present invention
  • FIG. 2 is a front view when the door of the refrigerator in the embodiment of the present invention is opened
  • FIG. 3 is an embodiment of the present invention. It is a longitudinal cross-sectional view of the refrigerator in a form. In FIG. 3, the left side is the front of the refrigerator and the right side is the rear.
  • the refrigerator 50 includes a main body 1 having an opening at the front. As shown in FIG. 3, the main body 1 is filled between an outer box 2 mainly using a steel plate, an inner box 3 formed of a hard resin such as ABS, and the outer box 2 and the inner box 3. And a foam heat insulating material 4 such as hard foam urethane.
  • the main body 1 is divided into a plurality of storage rooms by partition plates 5, 6, 6a.
  • the main body 1 includes a refrigerating chamber 7 positioned at the top, a switching chamber 8a positioned at the bottom of the refrigerating chamber 7, and an ice making chamber 8b juxtaposed to the switching chamber 8a, a switching chamber 8a, and an ice making chamber 8b.
  • It has each freezer compartment 9 located in the lower part, and each storage room of the vegetable compartment 10 located in the lower part of the freezer compartment 9. Front openings of the storage chambers are closed by doors 11a, 11b, 11c, 11d, and 11e so that they can be opened and closed.
  • a machine room 14 is provided in the upper rear region of the main body 1.
  • the machine room 14 accommodates a compressor 15 and high-pressure side components of the refrigeration cycle such as a dryer for removing moisture.
  • a cooling chamber 16 for generating cold air and a cold air passage 17 for supplying and circulating the cold air from the cooling chamber 16 to the refrigerating chamber 7, the vegetable chamber 10 and the freezing chamber 9 are provided on the back surface of the main body 1.
  • a cooler 19 is disposed in the cooling chamber 16, and a cooling fan 20 is disposed above the cooler 19.
  • the cooling fan 20 forcibly circulates the cool air cooled by the cooler 19 through the cool air passage 17 to the refrigerating room 7, the vegetable room 10, and the freezing room 9 to cool each room.
  • the refrigerator compartment 7 is cooled to a temperature at which the ingredients are not frozen, that is, usually 1 ° C. to 5 ° C.
  • the vegetable compartment 10 is cooled to a temperature equal to or slightly higher than the refrigerator compartment 7, for example, 2 ° C. to 7 ° C.
  • the freezer compartment 9 is usually cooled to a freezing temperature range of ⁇ 22 ° C. to ⁇ 15 ° C. for frozen storage, and in some cases, for example, ⁇ 30 ° C. or ⁇ 25 ° C. to improve the frozen storage state. It may be cooled to a low temperature.
  • a plurality of shelf boards 21 on which food is placed are provided in the refrigerator compartment 7 cooled by the cold air from the cooling compartment 16. Further, an illuminating device is installed in the front portion of the side wall, and the illuminating device is turned on when the door 11a is opened, and is configured to irradiate the inside of the refrigerator compartment 7.
  • the refrigerating chamber 7 has a water supply tank chamber 22 in which a water supply tank for ice making is installed at the lower portion thereof, a chilled chamber that is cooled to a temperature zone of about 1 ° C. adjacent to the side, or about ⁇ 3
  • a low-temperature storage chamber 23 that can be switched to a partial chamber cooled to a slight freezing temperature zone of 0 ° C. is defined.
  • the cold storage room 23 is not switchable to a chilled room or a partial room, but may be designed to be used exclusively as a chilled room or a partial room.
  • FIG. 4 is an enlarged perspective view of a low-temperature storage room provided at the lower part of the refrigerator compartment of the refrigerator according to the embodiment of the present invention.
  • the lower right side is the front and the upper left side is the rear.
  • FIG. 5 is an enlarged cross-sectional view of the low-temperature storage room of the refrigerator according to the embodiment of the present invention.
  • the left side is the front and the right side is the rear.
  • the low-temperature storage chamber 23 of the refrigerator 50 of the present embodiment is a shelf plate member 24 that is also used as a shelf plate whose upper surface is located at the lowest stage of the refrigerator compartment 7.
  • a partition is formed, and a side surface is partitioned by a partition plate 22 a that partitions the water supply tank chamber 22.
  • a container 25 that can be pulled out is provided inside the low-temperature storage chamber 23.
  • the front side of the container 25 is closed by a cover plate 26 that rotates around the front end of the shelf plate member 24 and opens as the container 25 is pulled out.
  • FIG. 6 is an exploded perspective view of a shelf plate member constituting the low-temperature storage chamber of the refrigerator in the embodiment of the present invention, with the lower left side in FIG. 6 being the front of the refrigerator and the upper right side being the rear.
  • FIG. 7 is a perspective view of the shelf member of the refrigerator according to the embodiment of the present invention as viewed from above, with the lower left side in FIG. 7 being the front and the upper right side being the rear.
  • FIG. 8 is a perspective view of the shelf member of the refrigerator according to the embodiment of the present invention as viewed from below, with the upper right side in FIG. 8 being the front of the refrigerator and the lower left side being the rear.
  • the shelf member 24 includes an upper plate 28 made of a glass plate and the like mounted on a shelf frame member 27 made of synthetic resin, and a synthetic resin that becomes a lower plate. It is comprised from the lower frame board 29 made from, and the heat insulating materials 30, such as a polystyrene foam provided between the upper board 28 and the lower frame board 29. As shown in FIG.
  • the heat insulating material 30 is configured by polymerizing an upper heat insulating material 30a and a lower heat insulating material 30b.
  • the cold air duct part 32 is formed in the space formed by superposing the upper heat insulating material 30a and the lower heat insulating material 30b.
  • a cold air outlet 31 that opens to the lower frame plate 29 is formed.
  • the cold air outlet 31 is more specifically supplied to the low temperature storage chamber 23 so that more cold air is supplied to the front side of the low temperature storage chamber 23 than to the rear side. It is concentrated on the front end portion of the heat insulating material 30 where the cold air duct portion 32 is formed so that most of the cold air blown out is blown out from the front side of the low temperature storage chamber 23.
  • the cold air outlets 31 are provided more concentrated on the front side of the low temperature storage chamber 23, that is, on the front end portion of the heat insulating material 30 than the rear portion.
  • the total opening area of the cold air outlet 31 provided on the front side of the low temperature storage chamber 23 is greater than the total opening area of the outlet 31 provided on the rear side of the low temperature storage chamber 23. May be concentrated on the front side so as to be larger. That is, the cold air outlet 31 may be provided with the number of the cold air outlets 31 concentrated on the front side, or provided on the front side of the low temperature storage chamber 23 regardless of the number of the cold air outlets 31.
  • the sum of the opening area of the cold air outlet 31 may be provided so as to be larger than the sum of the cold air outlets 31 provided on the rear side.
  • the lower heat insulating material 30b is also provided with a cold air outlet 31b at a position corresponding to the cold air outlet 31 provided in the lower frame plate 29, and the cold air duct portion 32 is provided with the cold air outlet 32b. It communicates with the mouth 31.
  • the cold air duct portion 32 communicates with the cold air passage 17 on the back surface of the main body 1 through a cold air introducing port 33 described later, and the low temperature storage chamber is connected to the cold air introducing port 33.
  • Cold air is supplied into the interior 23.
  • the inside of the low temperature storage chamber 23 is cooled by this cold air.
  • the heat insulating material 30 provided with the cold air duct portion 32 is disposed from the rear end portion of the shelf board member 24 to substantially the front end.
  • the substantially front end means, for example, as shown in FIG. 8, a front end of the shelf board member 24 and a portion having a distance of several centimeters from the front end to the inward side of the shelf board member 24.
  • the rear end portion of the shelf board member 24 refers to an end portion on which the heat insulating material 30 on the rear side of the shelf board member 24 can be provided, and in this embodiment, refers to the end portion 24b (FIG. 6). reference).
  • the rear portion of the shelf board member 24 refers to the end 24b and the part from the end 24b to the center of the shelf board member 24 in the front-rear direction.
  • the cold air duct part 32 is formed from the back part of the heat insulating material 30 to the front-end part, and the cold air blower outlet is provided in the front end part of the heat insulating material 30 in which the cold air duct part 32 was provided. 31 is disposed.
  • the front end portion of the heat insulating material 30 refers to the front end side of the heat insulating material 30, that is, the front half in the front-rear direction of the heat insulating material 30, as shown in FIG. 30 is a front third portion in the front-rear direction, more preferably a front quarter portion of the heat insulating material 30 in the front-rear direction.
  • the rear portion of the heat insulating material 30 refers to a portion behind the center of the heat insulating material 30 in the front-rear direction.
  • the cold air duct portion 32 is disposed up to the front end portion of the heat insulating material 30, and most of the cold air supplied into the low temperature storage chamber 23 passes through the cold air duct portion 32 and is stored at a low temperature from the cold air outlet 31. It is supplied forward in the chamber 23.
  • FIG. 9 is a plan view of a state in which the upper heat insulating material of the shelf board member constituting the low temperature storage room of the refrigerator in the embodiment of the present invention is removed, with the lower side in FIG. 9 being the front of the refrigerator 50 and the upper side being the rear It is.
  • the cold air outlet 31 is formed on the front side of the lighting device 35 described later, and is behind the lighting device 35. That is, the rear side in the low temperature storage chamber 23 is formed as a non-porous portion in which the cold air outlet 31 is not formed.
  • it is comprised so that many cold air outlets 31 may be concentrated and arrange
  • a cold air return port 43 is provided at the rear portion of the low temperature storage chamber 23, which is opposite to the front end portion of the heat insulating material 30 in which the cold air outlet ports 31 are concentrated. ing.
  • FIG. 10 is a plan view showing the bottom of the low-temperature storage room of the refrigerator in the embodiment of the present invention, with the lower side in FIG. 10 being the front of the refrigerator 50 and the upper side being the rear.
  • a heater 44 is laid on the bottom surface portion facing the rear portion of the shelf plate member 24 of the low temperature storage chamber 23 where the cold air outlets 31 are not formed in a concentrated manner.
  • the heater 44 includes a front side portion 44a, a rear side portion 44b, and both side portions 44c.
  • the heater 44 is embedded in the partition plate 5 constituting the bottom surface of the low temperature storage chamber 23.
  • the heater 44 is disposed so as to surround the outer periphery of the non-hole portion on the rear side of the low-temperature storage chamber 23 where the cold air outlet 31 is not disposed. That is, the rear side portion 44 b and the both side portions 44 c except for the front side portion 44 a are arranged so as to be positioned at the corners of the low temperature storage chamber 23. Further, the heater 44 is formed so that the wiring is densely folded at the vicinity 44 d of the cold air return port 43 and the vicinity 44 e of the water supply tank chamber 22.
  • FIG. 11 is a cross-sectional view taken along the line 11-11 in FIG. 9.
  • the left side is the front of the refrigerator 50 and the right side is the rear.
  • the heat insulating material 30 of the shelf board member 24 is configured by superposing an upper heat insulating material 30a and a lower heat insulating material 30b.
  • the cold air duct portion 32 is formed by a recess formed in one or both of the upper heat insulating material 30a and the lower heat insulating material 30b.
  • the upper heat insulating material 30a and the lower heat insulating material 30b of the heat insulating material 30 are press-fitted and attached to the lower frame plate 29 of the shelf board member 24, and connected to the cool air passage 17 of the main body 1 at the rear part thereof as shown in FIG. A cold air inlet 33 is provided.
  • the lower surface of the shelf plate member 24, that is, the lower frame plate 29 protrudes toward the upper surface of the heat insulating material 30 so as to bite into the cold air duct portion 32 in the heat insulating material 30.
  • a recess 34 is formed.
  • the recess 34 is fitted into a through hole 30 c formed in the lower heat insulating material 30 b, and an illumination device 35 is provided inside the recess 34.
  • the recess 34 is formed in a portion closer to the front than the center in the front-rear direction (depth direction) of the shelf board member 24, and the lighting device 35 is located in a portion closer to the front of the low-temperature storage chamber 23.
  • FIG. 12 is a diagram for explaining a lighting state when the container of the cold storage room of the refrigerator in the embodiment of the present invention is pulled out.
  • the left side is the front of the refrigerator 50 and the right side is the rear.
  • the illumination device 35 provided in the recess 34 is positioned on the front side of the rearmost end 25 ⁇ / b> B of the upper surface opening of the container 25 drawn out from the low temperature storage chamber 23. It is configured.
  • the outer peripheral portion of the recess 34 of the heat insulating material 30 in which the lighting device 35 is accommodated is formed so as to become the cold air duct portion 32 leaving the heat insulating wall zone 36. That is, the cold air duct portion 32 is continuously formed also in a portion on the front side of the lighting device 35, and the cold air is supplied from the cold air outlet 31 to the front portion of the low-temperature storage chamber 23. .
  • the heat insulating wall zone 36 formed in the outer peripheral portion of the recess 34 is formed such that the heat insulating wall bandwidth 36W of the portion facing the cold air inlet 33 is wider than the other portions.
  • FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 9, and is a cross-sectional view of the main body of the refrigerator according to the embodiment of the present invention as viewed from the front.
  • the illuminating device 35 provided in the recess 34 includes a substrate 37, a light source body 38 made of LEDs and the like provided on the substrate 37, and a transparent cover 39 that covers the lower side of the light source body 38. It consists of and.
  • the substrate 37 is nail-locked by being fitted inside the holding piece 40 provided in the concave portion 34 of the lower frame plate 29 of the shelf plate member 24.
  • the transparent cover 39 is fitted on the outer side of the holding piece 40 and is fitted in the recess 34. That is, the illumination device 35 is unitized on the lower frame plate 29.
  • the upper heat insulating material 30 a and the lower heat insulating material 30 b constituting the heat insulating material 30 of the shelf board member 24 are provided with a wiring groove 41 formed by a concave portion similar to the cold air duct portion 32. .
  • the lead wire 42 of the illuminating device 35 is connected to the power supply lead wire on the main body 1 side through an opening 24 a formed in the rear end portion of the shelf board member 24 through the wiring groove 41.
  • the wiring groove 41 is directed forward from the rear one end portion (the left rear portion in FIG. 9) of the concave portion 34 so as to avoid the cold air outlet 31 of the cold air duct portion 32. It is formed, bent as it is in the lateral direction (right direction in FIG. 9), and further bent rearward along the side surface of the shelf board member 24.
  • the opening 24a of the shelf board member 24 is closed by the closing plate 44 (see FIG. 4) after the wiring process.
  • FIG. 14 is a diagram for explaining the illumination state in the low-temperature storage room of the refrigerator according to the embodiment of the present invention.
  • the left side is the front and the right side is the rear.
  • the low temperature storage chamber 23 detects whether the container 25 is put in and out by the container detection switch 45, detects the temperature by the temperature sensor 46, controls the supply of cold air, and sets the temperature to a predetermined temperature. It is configured to cool.
  • the cold air generated in the cooling chamber 16 is supplied to the refrigerator compartment 7, the vegetable compartment 10, and the freezer compartment 9 through the cold passage 17, It is supplied from the cold air outlet 31 to the low temperature storage chamber 23 via the cold air duct portion 32 provided in the shelf board member 24.
  • the cold air outlet 31 is formed concentrated on the front end portion of the heat insulating material 30 of the shelf board member 24, sufficient cold air can be supplied to the front portion of the low temperature storage chamber 23, and the low temperature storage chamber 23. It is possible to prevent the front portion of the battery from becoming short of cold air supply.
  • the inside of the low temperature storage chamber 23 is uniformly cooled over the entire region from the front portion to the rear portion.
  • a heater 44 is disposed on the bottom surface portion of the low temperature storage chamber 23 where the cold air outlets 31 are not formed in a concentrated manner and facing the rear portion of the shelf plate member 24.
  • the heater 44 is disposed along the corner of the rear bottom of the low temperature storage chamber 23 where the cold air that has been supercooled by the low temperature cold air from the cold air passage 17 on the back of the main body 1 tends to stay. Yes.
  • overcooling of the rear portion of the low-temperature storage chamber 23, particularly the rear corner is effectively suppressed, and the occurrence of temperature unevenness in the low-temperature storage chamber 23 can be suppressed efficiently.
  • the heater 44 is disposed along the boundary portion with the water supply tank chamber 22 at the bottom of the portion adjacent to the water supply tank chamber 22. Therefore, it is possible to prevent the water flow path in the water supply tank chamber 22 from icing due to the cold radiation in the cold storage chamber 23 and the cold radiation in the cold passage 17 on the back of the main body. Therefore, it is possible to improve the reliability by suppressing the temperature unevenness and the occurrence of dew condensation while expanding the low temperature storage chamber 23 to the portion of the water supply tank chamber 22.
  • the heater 44 is folded back in the vicinity of the water supply tank chamber 22 in the portion 44e and the portion near the cool air return port 44d, and the wiring is densely formed. With such a configuration, it is possible to reliably suppress the temperature drop of the water tank chamber 22 vicinity portion 44e and the cold air return port 43 vicinity portion 44d where the temperature tends to be low, and to suppress temperature unevenness and condensation in the low temperature storage chamber 23. Reliability can be improved.
  • the cold air duct portion 32 is provided so as to surround the lighting device 35 provided on the shelf plate member 24, and the cold air outlet 31 is provided in the front portion of the lighting device 35. ing. Therefore, it is possible to prevent cold air from being blown out from the front portion of the lighting device 35 and causing the front portion of the lighting device 35 to be in short supply of cold air.
  • the inside of the low temperature storage chamber 23 can be uniformly cooled.
  • the illumination device 35 of the low temperature storage chamber 23 is turned on together with the illumination device in the refrigerator compartment 7, and the inside of the low temperature storage chamber 23 is irradiated. Therefore, the visibility of the food stored in the low temperature storage chamber 23 can also be improved.
  • the lighting device 35 is provided on the lower surface of the shelf board member 24 in the front-rear direction (depth direction) (intermediate portion excluding the front end portion and the rear end portion).
  • the light from the light source body 38 can be irradiated up to the rear end of the container 25. Therefore, it is possible to brighten the inner part of the low-temperature storage chamber 23, and it is possible to clearly see the food stored in the low-temperature storage chamber 23.
  • the illuminating device 35 is provided so that it may be located ahead of the upper surface opening last end 25B of the container 25 pulled out from the low-temperature storage chamber 23, the container 25 is pulled out. Even in this case, the inside of the container 25 can be irradiated as shown in FIG. Therefore, the visibility of foodstuffs when the container 25 is pulled out can be improved.
  • the cold storage room 23 is in a state in which cold air flows through the cold air duct portion 32 around the lighting device 35 and the lighting device 35 is cooled.
  • the cold air flowing in the cold air duct portion 32 is insulated by the heat insulating wall zone 36 around the recess 34 provided with the lighting device 35, the lighting device 35 can be prevented from being overcooled. Therefore, condensation does not occur in the illuminating device 35, and concerns such as a short circuit failure due to the formation of condensation are eliminated and reliability can be improved.
  • the heat insulating wall zone 36 around the recess 34 in which the lighting device 35 is accommodated is a portion of the rear end portion of the shelf board member 24 facing the cold air inlet 33 as shown in FIG. Since the heat insulation wall bandwidth 36W is formed wider than the other portions of the heat insulation wall zone 36, the reliability can be further improved.
  • the heat insulating wall bandwidth 36W which is the portion of the recess 34 that faces the cold air inlet 33, is strongly cooled by the direct collision of the cold air from the cold air inlet 33, and condensation tends to occur.
  • the heat insulation wall bandwidth 36W in the portion facing the cold air inlet 33 is formed to be particularly wide, so that the strong cooling due to the direct collision of the cold air from the cold air inlet 33 is more reliably insulated. it can. Therefore, it is possible to reliably prevent overcooling of the portion facing the cold air inlet 33 of the lighting device 35 to prevent condensation from occurring in the lighting device 35, and to eliminate concerns such as a short circuit failure due to condensation. Can be increased.
  • the lighting device 35 is provided in a portion closer to the front than the center in the front-rear direction (depth direction) of the low-temperature storage chamber 23.
  • a predetermined size or more of the cold air duct portion 32 from the cold air inlet 33 to the lighting device 35 can be secured.
  • the lighting device 35 prevents the outside air from entering the light source body 38 part that is likely to occur when the door 11a of the refrigerator compartment 7 is opened and closed. It is possible to prevent condensation due to intrusion of outside air. Moreover, a creeping distance to the light source body 38 can be ensured by providing the transparent cover 39. Therefore, it is also possible to prevent the light source body 38 from being damaged due to static electricity flowing from the hand or the like to the light source body 38 and the substrate 37 when the food is taken in and out of the low temperature storage chamber 23. Therefore, reliability can be further improved.
  • the shelf plate member 24 is formed with the cold air duct portion 32 in a space formed by superposing the upper heat insulating material 30a and the lower heat insulating material 30b, so that the cold air duct portion 32 can be easily formed.
  • Can increase productivity That is, only the upper heat insulating material 30a and the lower heat insulating material 30b in which the cold air passage recess is formed (the cold air passage recess may be provided in only one of the upper heat insulating material 30a and the lower heat insulating material 30b).
  • productivity can be dramatically improved compared with the case where the inside of one heat insulation member is hollowed and a cold air duct part is formed.
  • the cold passage recesses need only be formed on the overlapping surfaces of the upper heat insulating material 30a and the lower heat insulating material 30b, any shape of the cold air passage recesses can be easily formed. Therefore, the degree of freedom of the cold air passage shape can be improved, and the cold air duct portion 32 that can efficiently cool the entire low temperature storage chamber 23 can be formed.
  • the wiring groove 41 in which the lead wire 42 of the lighting device 35 is disposed is also formed in the same recess method as the cold air duct portion 32, the degree of freedom of the shape of the wiring groove 41 is the same as in the case of the cold air duct portion 32. Can be improved. Therefore, the wiring groove 41 can be formed at a position where it is difficult to be affected by the cold air flowing through the cold air duct portion 32, so that the condensation of the wiring itself can be prevented and the reliability can be improved. In addition, there is no need to prepare a lead wire mounting member, etc., and mount the lead wire member on the shelf board member 24 to provide a lead wire wiring portion, thereby reducing the number of members and the number of assembly steps by rationalizing the configuration. Therefore, productivity can be improved and cost reduction can be promoted.
  • the lighting device 35 is unitized by mounting a substrate 37 and a transparent cover 39 in a recess 34 provided in the lower frame plate 29 of the shelf plate member 24. For this reason, the upper heat insulating material 30a and the lower heat insulating material 30b are assembled between the upper plate 28 and the lower frame plate 29 to assemble the shelf plate member 24, and at the same time, the incorporation of the lighting device 35 is completed. Therefore, productivity can be improved, the number of parts conveyed in the assembly process can be reduced, and handling of the light source 38 and the like is facilitated.
  • the shelf plate member The assembly of 24 can be facilitated, and the productivity can be further improved.
  • the lighting device 35 is unitized by sequentially fitting and mounting the substrate 37 and the transparent cover 39.
  • the unitized lower frame plate 29 is turned over, and the lower heat insulating material 30 b is fitted into the lower frame plate 29.
  • the lead wire 42 from the substrate 37 is pulled out from the hole portion 34Y of the recess 34 into which the substrate 37 is fitted, and is drawn around the wiring groove recess formed in the lower heat insulating material 30b.
  • the upper heat insulating material 30a is piled up on the lower heat insulating material 30b and the upper plate 28 integrated with the shelf frame member 27 is set, the assembly of the shelf plate member 24 is completed.
  • the lighting device 35 can be incorporated and the lead wire 42 can be wired only on the side of the lower heat insulating material 30b fitted and attached to the lower frame plate 29. Therefore, for example, as compared with the case where the lighting device 35 is mounted on the lower heat insulating material 30b side and the lead wire 42 is mounted on the upper heat insulating material 30a side, the assembling property is remarkably improved and the productivity is improved. Can do.
  • the amount of cold air supplied to the cold air duct portion 32 can be adjusted by a damper or the like, and the low temperature storage chamber 23 can be switched to a partial chamber or a chilled chamber. It is configured.
  • the refrigerator 50 can supply cold air to the front portion of the low-temperature storage chamber 23, thereby preventing the front portion of the low-temperature storage chamber 23 from becoming insufficiently supplied with cold air. it can. Further, the cool air supplied to the front portion of the low temperature storage chamber 23 flows to the cool air return port 43 behind the low temperature storage chamber 23, and the inside of the low temperature storage chamber 23 can be uniformly cooled. Therefore, the temperature unevenness in the low temperature storage chamber 23 and the occurrence of dew condensation due to this can be suppressed, and the cold preservation performance of the food can be improved and the reliability can be enhanced.
  • the cold air outlet 31 is formed.
  • the rear part that is, the rear side part of the main body 1 is a non-porous part in which the cold air outlet 31 is not provided, but it is not limited to this structure.
  • several cold air outlets 31 may be provided in the non-porous portion. That is, the cold air outlet 31 is concentrated on the front end portion of the heat insulating material 30 so that the cold air blown from the front side of the low temperature storage chamber 23 occupies most of the cold air blown into the low temperature storage chamber 23. As long as it is formed.
  • the cold air outlet is arranged in the heat insulating material so that more cold air is supplied to the front side of the low temperature storage chamber than to the rear side.
  • a cold air outlet is formed concentrating on the front end portion of the heat insulating material of the shelf board member. More specifically, a large number of cold air outlets are concentrated on the front end portion of the heat insulating material of the shelf board member.
  • the cool air blowout opening provided in the front end portion of the heat insulating material of the shelf member has a total opening area larger than the total opening area of the cold air blowing opening provided in the rear portion of the heat insulating material.
  • the blowout port is formed, it is included in the form in which the cool air blowout port is formed concentrated on the front end portion of the heat insulating material of the shelf board member. With such a configuration, it is possible to suppress temperature unevenness in the low-temperature storage chamber and occurrence of condensation due to this.
  • the present invention provides a highly reliable refrigerator by suppressing temperature unevenness and condensation in the low-temperature storage room. Therefore, it can be widely used not only for home use but also for commercial refrigerators and showcases.
  • SYMBOLS 1 Main body 7 Refrigeration room 14 Machine room 15 Compressor 16 Cooling room 17 Cooling air passage 19 Cooler 20 Cooling fan 21 Shelf board 22 Water supply tank room 23 Low temperature storage room 24 Shelf board member 24b End part 25 Container 26 Cover plate 27 Shelf frame member 28 Upper plate 29 Lower frame plate (lower plate) DESCRIPTION OF SYMBOLS 30 Heat insulating material 30a Upper heat insulating material 30b Lower heat insulating material 31, 31b Cold air outlet 32 Cold air duct part 33 Cold air inlet 34 Recessed part 35 Illumination device 36 Wall width for heat insulation 36W Wall bandwidth for heat insulation 37 Substrate 38 Light source body 39 Transparent cover 40 Holding piece 41 Wiring groove 42 Lead wire 43 Cool air return port 44 Heater

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
PCT/JP2016/003247 2015-07-16 2016-07-08 冷蔵庫 WO2017010070A1 (ja)

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WO2018189777A1 (ja) * 2017-04-10 2018-10-18 三菱電機株式会社 冷蔵庫
JP6807881B2 (ja) * 2018-02-08 2021-01-06 日立グローバルライフソリューションズ株式会社 冷蔵庫
JPWO2019171534A1 (ja) * 2018-03-08 2021-01-07 三菱電機株式会社 冷蔵庫
CN113883797A (zh) * 2020-07-02 2022-01-04 日立环球生活方案株式会社 冷藏库
TWI785946B (zh) * 2021-12-24 2022-12-01 台灣松下電器股份有限公司 具有斜照式照明單元的冷藏設備

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JP2008106993A (ja) * 2006-10-25 2008-05-08 Matsushita Electric Ind Co Ltd 冷蔵庫
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JP3478795B2 (ja) * 2000-11-13 2003-12-15 松下冷機株式会社 冷蔵庫
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JP5845435B2 (ja) * 2011-04-05 2016-01-20 パナソニックＩｐマネジメント株式会社 冷蔵庫
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JP2013083364A (ja) * 2011-10-06 2013-05-09 Panasonic Corp 冷蔵庫

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