WO2017029782A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
WO2017029782A1
WO2017029782A1 PCT/JP2016/003601 JP2016003601W WO2017029782A1 WO 2017029782 A1 WO2017029782 A1 WO 2017029782A1 JP 2016003601 W JP2016003601 W JP 2016003601W WO 2017029782 A1 WO2017029782 A1 WO 2017029782A1
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WO
WIPO (PCT)
Prior art keywords
refrigerator
humidity sensor
temperature
sensor
door
Prior art date
Application number
PCT/JP2016/003601
Other languages
English (en)
Japanese (ja)
Inventor
堀尾　好正
愼一 堀井
健一 柿田
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 EP16836780.3A priority Critical patent/EP3339775A4/fr
Priority to CN201680048405.XA priority patent/CN107923690A/zh
Publication of WO2017029782A1 publication Critical patent/WO2017029782A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/02—Humidity
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/021—French doors
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present invention relates to a refrigerator in which a front opening of a storage room provided in an upper part of a main body is closed by left and right doors.
  • the refrigerator compartment that is frequently used and has the largest storage volume is configured to be closed by the left and right doors, and the Be placed. Then, an ice making room and a temperature switching room are provided below, a vegetable room is provided below, and a freezing room is provided at the bottom. In recent years, this type has become mainstream.
  • the above-described left and right doors of the folding door of the refrigerator compartment are configured to be long in the vertical direction on the inner surface on the open end side of one of the doors in order to prevent outside air from entering between the left and right doors.
  • a rotating partition is provided. The rotating partition rotates to the other door side when one door is closed. Furthermore, the rotating partition is provided with an adsorption surface that adsorbs to a gasket provided on the door when it rotates. And the refrigerator which prevented generation
  • FIG. 11 is a front view of a conventional refrigerator
  • FIG. 12 is a diagram illustrating a configuration of a hinge portion of the conventional refrigerator.
  • a hinge 11 that connects and fixes the doors to the fixed ends of the left and right doors 2 a and 2 b in front of the refrigerator 1 and a hinge cover 12 that covers the hinges 11.
  • the hinge part 13 containing is arrange
  • the left door 2a is provided with a rotating partition 23 provided along the open end of the door 2a on the open end side where the door 2a is not fixed and rotating in accordance with opening and closing of the door 2a.
  • a surface heater 24 is provided inside the rotary partition 23 (see FIG. 11).
  • an outside air temperature sensor 14 that detects the temperature of the outside air and an outside air humidity sensor 15 that detects the humidity of the outside air are arranged in the vicinity of the hinge portion 13. Furthermore, the hinge part 13 is provided with a harness for the surface heater 24 and a connection connector (both not shown), and these are housed inside the hinge cover 12.
  • the hinge cover 12 is provided with a ventilation hole for obtaining the ventilation of the outside air, so that the detection accuracy of the outside air temperature sensor 14 and the outside air humidity sensor 15 is improved.
  • the electronic components of the outside temperature sensor 14 and the outside air humidity sensor 15 to which a weak DC voltage is supplied, the harness of the surface heater 24 of the rotary partition 23 to which AC 100 V is supplied, and the like It is the structure arrange
  • SSR solid state relay
  • the present invention has been made in view of the above problems, and prevents electronic components from being arranged in the vicinity of the electrical path of the AC voltage, thereby preventing false detection and failure due to malfunction of the electronic components and improving quality.
  • a refrigerator includes a main body, one of a left door and a right door, and a left door and a right door provided on an upper portion of the main body.
  • the rotating partition having a dew condensation prevention heater, a temperature sensor provided in the main body, a humidity sensor provided in the main body, and energization to the dew condensation prevention heater based on inputs from the temperature sensor and the humidity sensor And a control unit for controlling.
  • a hinge cover that covers the hinge of the other door of the left door and the right door.
  • the temperature sensor and the humidity sensor are covered with a hinge cover.
  • the electronic component is not disposed in the vicinity of the electric path of the AC voltage, and thus the electronic component is not easily affected by noise generation due to electromagnetic waves. Therefore, it is possible to prevent erroneous detection and failure due to malfunction of the electronic component, and improve the quality of the refrigerator.
  • the height of the top surface of the hinge cover may be configured such that a portion corresponding to the upper side of the temperature sensor and the humidity sensor is higher than the other portions.
  • the surrounding space of the humidity sensor can be made large, so that the detection accuracy is improved, and the step is difficult to see even when the hinge part is visually observed from around the refrigerator, and the height of the entire hinge cover is increased. It looks better than it is.
  • the rigidity of the hinge cover is improved and the strength can be improved by the difference in height, the hinge cover alone is not easily deformed.
  • the humidity sensor and the hinge cover do not come into contact with each other.
  • the height of a hinge cover is comprised so that it may become below the height of the whole refrigerator, and the dimension of the whole product does not change.
  • the temperature sensor and the humidity sensor have respective detection elements and respective or common substrates on which the detection elements are arranged, and brackets that support the substrates And a case covered with a hinge cover that covers the hinge of the other door, and the bracket may be arranged in the case.
  • the first rib may be provided on the outer periphery of the hinge cover, and the second rib may be provided on the inner side of the first rib.
  • the breakage of the electronic board due to the intrusion of water or insects due to the splash of water that may occur in the usage environment of the refrigerator may cause disconnection or the like due to damage to the electronic board or damage to the covering of the harness. Absent. Furthermore, since it is possible to prevent the influence of static electricity applied from metal parts such as hinges and shells, a refrigerator with high safety and quality can be provided.
  • the case is disposed in the recess provided in the refrigerator top surface portion, and connects the control unit and the operation unit provided in at least one of the left and right doors.
  • the connector may be disposed in the case, and the bracket may be disposed above the connector.
  • the temperature sensor and the humidity sensor can be stored compactly in a narrow space inside the hinge cover without changing the outer dimensions of the hinge cover. Moreover, when a humidity sensor detects humidity, it can make it difficult to receive the influence of the cold from the refrigerator inner side.
  • the temperature sensor and the humidity sensor may be disposed above the top surface of the main body.
  • the temperature sensor and the humidity sensor and the communication opening opened on the outer periphery of the hinge cover are arranged on substantially the same horizontal plane, so that the ambient air around the temperature sensor and the humidity sensor is difficult to stagnate.
  • the response of detection by the humidity sensor can be further improved.
  • a plurality of communication ports may be provided on the outer periphery of the hinge cover, and the plurality of communication ports may be provided in the vicinity of the humidity sensor.
  • the resistance to ventilation between the outside air and the humidity sensor detection unit can be reduced, so that the detection accuracy of the humidity sensor and the responsiveness when the outside air humidity changes can be improved.
  • the temperature sensor and the humidity sensor may be configured as a sensor module by mounting a peripheral circuit on a common substrate.
  • FIG. 1 is a front view showing an open state of a refrigerator door according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view seen from the side of the refrigerator according to Embodiment 1 of the present invention.
  • FIG. 3 is a cross-sectional view of a main part of the rotary partition of the refrigerator according to Embodiment 1 of the present invention.
  • FIG. 4 is a perspective view of the refrigerator according to the first embodiment of the present invention as viewed from the top.
  • 5 is a cross-sectional view taken along the line 5-5 in FIG.
  • FIG. 6 is a diagram showing a procedure for attaching the humidity sensor of the refrigerator according to the first embodiment of the present invention.
  • FIG. 1 is a front view showing an open state of a refrigerator door according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view seen from the side of the refrigerator according to Embodiment 1 of the present invention.
  • FIG. 3 is a cross-sectional view of a main
  • FIG. 7A is a perspective view of the hinge cover on the right side of the refrigerator according to Embodiment 1 of the present invention as viewed from the surface.
  • FIG. 7B is a perspective view of the right hinge cover of the refrigerator according to Embodiment 1 of the present invention as seen from the back side.
  • FIG. 8 is a cross-sectional view of the refrigerator according to the second embodiment of the present invention as viewed from the side.
  • FIG. 9 is an enlarged cross-sectional view of the heat insulating partition portion of the refrigerator according to Embodiment 2 of the present invention.
  • FIG. 10 is a cross-sectional view of the refrigerator according to the third embodiment of the present invention as viewed from the side.
  • FIG. 11 is a front view of a conventional refrigerator.
  • FIG. 12 is a diagram illustrating a configuration of a hinge portion of a conventional refrigerator.
  • FIG. 1 is a front view showing an open state of a refrigerator door according to Embodiment 1 of the present invention
  • FIG. 2 is a cross-sectional view seen from the side of the refrigerator according to Embodiment 1
  • FIG. It is sectional drawing of the principal part of the rotary partition of the refrigerator of the form 1.
  • 4 is a perspective view of the refrigerator according to the first embodiment as viewed from the top
  • FIG. 5 is a sectional view taken along the line 5-5 in FIG. 4
  • 7A is a perspective view of the hinge cover according to Embodiment 1 of the present invention as viewed from the front surface
  • FIG. 7B is a perspective view of the hinge cover as viewed from the back surface.
  • the refrigerator 101 has a left door 102 located on the left side when viewed from the front, and a right door 103 located on the right side.
  • FIG. 1 shows a state in which the left door 102 and the right door 103 are opened.
  • a refrigerating room 105 is disposed behind the left door 102 and the right door 103.
  • an ice making chamber 106 is disposed behind the lower portion of the left door 102.
  • a freezing room 107 and a vegetable room 108 are arranged in the lower part of the ice making room 106 from the top.
  • a switching chamber 109 is provided behind the lower portion of the right door 103 and on the right side of the ice making chamber 106.
  • the left door 102 and the right door 103 are each configured to be supported by a hinge portion 146 having a hinge 140 and open to the left and right sides (see FIG. 4).
  • a rotating partition 104 is provided on the non-support side (open end side) of the left door 102.
  • the rotating partition 104 rotates in the direction indicated by the arrow in FIG. 3 according to the opening / closing operation of the left door 102.
  • the rotary partition 104 closes the non-supporting side of the left door 102 and the right door 103 via the door gasket 125 (see FIG. 3). This prevents cold air from leaking out of the refrigerator compartment 105.
  • the refrigerator compartment 105 is usually set to 1 to 5 ° C. with the lower limit of the temperature at which it does not freeze in order to store foods in a refrigerator.
  • the vegetable room 108 is often set to 2 ° C. to 7 ° C., which is the same or slightly higher temperature setting as the refrigerator room 105. If the vegetable compartment 108 is cooled, the freshness of the leafy vegetables can be maintained for a long time.
  • the freezer compartment 107 is normally set to ⁇ 22 to ⁇ 18 ° C. in order to store food in a frozen state. Further, in order to improve the state of frozen storage, the temperature may be set to a low temperature of, for example, ⁇ 30 to ⁇ 25 ° C.
  • the refrigerator compartment 105 and the vegetable compartment 108 are called refrigeration temperature regions because the interior is set at a positive temperature.
  • the freezer compartment 107 and the ice making compartment 106 are called freezing temperature regions because the interior is set at a minus temperature.
  • the switching chamber 109 can set the temperature in the warehouse between the refrigeration temperature and the freezing temperature.
  • the top surface 170 of the refrigerator 101 is provided with a recess in a stepped manner toward the back of the refrigerator 101, and a machine room 119 is provided in the recess.
  • Compressor 117 is disposed in this stepped recess.
  • the compressor 117, a dryer (not shown) for removing moisture, a condenser (not shown), a heat radiating pipe including the front heat radiating pipe 114, the capillary tube 118, and the cooler 112 are annularly arranged in this order.
  • a refrigeration cycle is formed. A refrigerant is enclosed in this refrigeration cycle, and a cooling operation is performed.
  • a machine room fan (not shown) for heat dissipation is disposed between the condenser and the compressor 117.
  • the machine room fan lowers the temperature in the machine room by convection of the air in the machine room 119 so that outside air is taken into the machine room 119, thereby improving the heat radiation performance of the heat radiating pipe.
  • these functional parts can be arranged in the machine room 119.
  • the refrigerator compartment 105, the ice making room 106, and the switching room 109 are partitioned by a first heat insulating partition 121.
  • the ice making chamber 106 and the switching chamber 109 are partitioned by a second heat insulating partition 122.
  • the ice making chamber 106, the switching chamber 109, and the freezing chamber 107 are partitioned by a third heat insulating partition 123.
  • the freezer compartment 107 and the vegetable compartment 108 are partitioned by a fourth heat insulating partition 124.
  • the 2nd heat insulation partition part 122 and the 3rd heat insulation partition part 123 are components assembled
  • the heat insulating materials inside the respective partition portions of the first heat insulating partition portion 121, the second heat insulating partition portion 122, the third heat insulating partition portion 123, and the fourth heat insulating partition portion 124 are used.
  • foamed polystyrene 120 is often used as in the present embodiment, but hard foamed urethane may be used to improve heat insulating performance and rigidity.
  • a highly heat-insulating vacuum heat insulating material may be inserted into the partition portion.
  • the partition structure since the partition structure can be thinned, the internal volume of the refrigerator 101 can be increased.
  • a cooling air passage is formed in a space obtained by thinning the shape of the second heat insulating partition part 122 and the third heat insulating partition part 123 or eliminating each heat insulating partition part while securing the operating part of the door. By doing so, the cooling capacity can be improved. In addition, it is possible to reduce the material by hollowing out the respective central portions of the second heat insulating partition portion 122 and the third heat insulating partition portion 123 to form an air passage.
  • U-shaped metal iron plates 151, 152, 153, and 154 are arranged on the outer side (front side) of the first heat insulating partition 121 to the fourth heat insulating partition 124.
  • the door gasket is adsorbed to each iron plate, thereby preventing cold air from leaking from the interior.
  • a front heat radiating pipe 114 is disposed inside each iron plate 151, 152, 153, 154 so as to be in close contact with each iron plate 151, 152, 153, 154.
  • a cooling chamber 111 covered with a cooling chamber cover 115 is provided on the back surface of the refrigerator 101.
  • a cooler 112 that generates fin-and-tube cold air is provided behind the second heat insulating partition portion 122 and the third heat insulating partition portion 123, which are heat insulating partition walls, and On the back surface of the freezer compartment 107, it is arranged vertically in the vertical direction.
  • the material of the cooler 112 is aluminum or copper.
  • the cold air generated by the cooler 112 is forced to the refrigeration chamber 105, the ice making chamber 106, the switching chamber 109, the freezing chamber 107, and the vegetable chamber 108.
  • a cold air blowing fan 113 for blowing air is arranged.
  • a radiant heater 136 made of glass tube is provided as a defrosting device for defrosting frost adhering to the cooler 112 or the cold air blowing fan 113 during cooling.
  • the type of defrosting device is not particularly specified, and a pipe heater in close contact with the cooler 112 may be used in addition to the radiant heater 136. Further, both the radiant heater 136 and the pipe heater may be used. In this case, for example, the temperature of the cooler 112 can be efficiently increased by appropriately controlling the heater energization of the radiant heater 136 and the pipe heater, for example, so that the defrosting time can be shortened. Energy saving.
  • the defrosting time can be shortened means that the non-cooling time during defrosting is shortened. Therefore, it becomes possible to suppress the temperature rise of the food in the warehouse and the food in the warehouse at the time of defrosting, and the freshness of the food can also be improved.
  • a duct for blowing cool air from the cool air blowing fan 113 into each storage chamber is provided in the cooling chamber cover 115. Then, the cool air of the cooler 112 is directly blown to the ice making chamber 106, the switching chamber 109, and the freezing chamber 107 through the same duct.
  • discharge ports for discharging cold air to the ice making chamber 106, the switching chamber 109, and the freezing chamber 107 are provided in the front surface of the cooling chamber cover 115.
  • the flow rate of each discharge port is distributed according to the load amount ratio of the three rooms of the ice making chamber 106, the switching chamber 109, and the freezing chamber 107.
  • a damper which is an opening and closing device, is disposed on the upstream side of the air passage of the discharge port of the switching chamber 109, and the amount of air can be adjusted by the damper according to the temperature in the storage chamber. Thereby, the internal temperature can be adjusted to a temperature set for the switching chamber 109 between the refrigeration temperature and the freezing temperature.
  • the cold air blowing fan 113 may be directly attached to the inner box 110 of the refrigerator 101. Moreover, the cold air blowing fan 113 is arrange
  • the refrigerator 101 is provided with a heat radiating pipe mainly composed of a metal material such as copper or iron for heat radiating and preventing surface condensation.
  • heat radiating pipes are arranged on the top surface, the back surface, and the bottom surface around the side surface of the refrigerator 101.
  • a front heat radiating pipe 114 is also arranged on the front surface portion where the door gaskets of the storage chambers 106, 107, 108, 109 come into contact.
  • the rotary partition 104 includes a door gasket 125, a partition plate 127 that forms the suction surface 126 of the door gasket 125, and a polystyrene foam heat insulating material 128 disposed inside the rotary partition 104.
  • a synthetic resin partition frame 129 that covers the peripheral edge of the partition plate 127 and the outer surface of the heat insulating material 128, and a dew condensation prevention heater 130 that is a heating means disposed at the center of the inner surface of the partition plate 127.
  • a reinforcing plate 131 having a small coefficient of thermal expansion is provided at the height of the rotary partition 104 with respect to the height direction of the refrigerator. Arranged in substantially all areas of direction.
  • the reinforcing plate 131 is disposed inside the rotary partition 104, and the partition frame 129 that covers the peripheral portion of the partition plate 127 and the outer surface of the heat insulating material 128 is formed of resin. As a result, heat transfer from the outside is suppressed to save energy.
  • the reinforcing plate 131 may be disposed outside the rotary partition 104.
  • the partition plate 127 when the partition plate 127 is made of a metal member, the partition plate 127 can have a function as an adsorption surface of the door gasket 125. Thereby, the structure of the rotation partition 104 can be simplified and cost reduction can be aimed at.
  • a dew condensation prevention heater 130 is used as a heating means in the rotary partition 104.
  • the dew condensation prevention heater 130 is attached to substantially the entire region of the partition plate 127 in the height direction and energized to generate heat, thereby preventing dew condensation on the surface of the rotating partition 104 and the door gasket 125 that is in close contact with the surface. ing.
  • the surface of the rotary partition 104 tends to have a temperature distribution particularly in the vertical direction due to the internal temperature distribution of the refrigerator compartment 105 or the convection of the discharged cold air.
  • the unit heat generation amount (W / m) of the dew condensation prevention heater 130 is changed according to the temperature distribution described above.
  • the surface temperature of the partition plate 127 of the rotary partition 104 is made uniform, so that power consumption can be reduced.
  • a metal hinge 140 that fixes the right door 103 of the refrigerating chamber 105 to the main body of the refrigerator 101 is provided on the right side when viewed from the front surface of the top surface 170 of the refrigerator 101.
  • 140 is covered with a resin hinge cover 141.
  • a humidity sensor 144 is disposed inside the hinge cover 141 (see FIG. 5). That is, the humidity sensor 144 is covered with the hinge cover 141.
  • the hinge portion 146 includes a hinge 140, a hinge cover 141 that covers the hinge, a connector 142, and a base hinge 143 that is a case that houses the connector 142 and is covered by the hinge cover 141.
  • the connector 142 includes a control board 137 (see FIG. 4) that is a control unit disposed behind the top surface 170 of the refrigerator 101 and an operation board of the operation unit that is disposed on the right door 103 of the refrigerator 101. Connecting.
  • the operation unit is provided on at least one of the left door 102 and the right door 103.
  • the base hinge 143 is disposed in a recess provided in front of the top surface 170 of the refrigerator 101 (see FIGS. 4 and 5).
  • the hinge cover 141 has a large internal space of the hinge cover 141 where the humidity sensor 144 is installed. Of these, the height of the portion corresponding to the upper side of the humidity sensor 144 is set higher than that of the other portions. On the other hand, as shown in FIG. 4, the height of the top surface of the hinge cover 141 is lower than the portion corresponding to the upper side of the humidity sensor 144 in the portion covering the hinge 140 of the right door 103. Accordingly, the hinge cover 141 has at least two portions having different heights.
  • the hinge cover 141 is configured to have an inclined surface 141 a that is inclined toward the front side and the right side of the refrigerator 101. Even if the hinge part 146 is visually observed, the step is difficult to see. Therefore, the appearance is improved as compared with the case where the height of the entire hinge cover 141 is increased.
  • the hinge cover 141 is configured such that the height of the top surface of the hinge cover 141 is equal to or less than the height of the highest portion of the top surface portion 170 of the refrigerator 101.
  • the external dimensions do not change compared to previous products.
  • the hinge cover 141 is configured so that the height of the top surface of the hinge cover 141 differs depending on the part, and therefore, the hinge cover 141 is rigid as compared with the case where the entire hinge cover 141 is configured with the same height. Therefore, the strength of the hinge cover 141 is improved. Accordingly, since the hinge cover 141 itself is difficult to deform, it is possible to prevent the hinge cover 141 from being deformed and coming into contact with the humidity sensor 144 during the mounting operation of the hinge cover 141 in the manufacturing process.
  • the humidity sensor 144 is housed in the hinge cover 141 disposed on the right side when viewed from the front of the top surface 170 of the refrigerator 101.
  • an AC cord and an AC connector for energizing the dew condensation prevention heater 130 are housed in the hinge cover on the left door 102 side of the refrigerator compartment 105 in which the rotating partition 104 is disposed.
  • the humidity sensor 144 is separated from the AC cord and the AC connector for energizing the dew condensation prevention heater 130, and is housed in the right side of the refrigerator for low voltage use. Thereby, there is no concern that noise is generated due to the influence of electromagnetic waves of an AC voltage of 100 V and the humidity sensor 144 is erroneously detected, and a high-quality refrigerator can be provided.
  • the AC voltage and DC voltage or high voltage and low voltage harnesses must be installed close to the same hinge 140 side or the same door side.
  • the humidity sensor 144 is configured as a sensor module in which a detection element is mounted on a small substrate (module substrate) 172 together with peripheral circuits.
  • the humidity sensor 144 Since the humidity sensor 144 is installed inside the hinge cover 141, it is necessary to consider the assembly procedure, interference with other parts in the hinge cover 141, and the like.
  • the substrate 172 on which the humidity sensor 144 is mounted is first fixed to the bracket 145 of the sensor receiver.
  • the board 172 is disposed and fixed to the base hinge 143 as a case together with the bracket 145. That is, the substrate 172 on which the humidity sensor 144 is mounted is indirectly fixed to the base hinge 143 by being supported by a bracket 145 made of a member different from the base hinge 143 on which the connector 142 is supported. Yes.
  • the substrate 172 on which the humidity sensor 144 is mounted has a round opening 172a in a portion where no electronic component is mounted.
  • a projection 145a having the same size as or smaller than the opening 172a is projected from the bracket 145, and when the humidity sensor 144 is attached to the bracket 145, the opening 172a fits into the projection 145a.
  • the substrate 172 and the bracket 145 of the humidity sensor 144 are not only fixed by the claws provided on the bracket 145 but also fixed by the openings 172a and the protrusions 145a, and are fixed in multiple.
  • the humidity sensor 144 is formed on a small substrate (module substrate) 172 as described above, and a plurality of substrates are created and divided at a time in the production process. Therefore, when the substrate is divided, a trace of the joint may remain slightly on the end surface portion of the substrate. Therefore, the claw for supporting the humidity sensor 144 on the bracket 145 is arranged avoiding the joint portion of the board and the mounting portion mounted on the board itself, and the humidity sensor 144 and the bracket 145 are fixed by the claw. Formed as follows. This prevents the humidity sensor 144 from being damaged by the bracket 145 and causing the malfunction of the humidity sensor 144 in the mounting process of the humidity sensor 144 or the like.
  • the bracket 145 is formed in a shape along the internal shape of the base hinge 143 and is configured to be attached by a claw provided on the base hinge 143. Thereby, the position of the humidity sensor 144 is fixed. Accordingly, it is possible to prevent the humidity sensor 144 from being difficult to detect or to detect a shifted value due to the position of the humidity sensor 144 being shifted due to mounting or assembly variations.
  • the bracket 145 of the humidity sensor 144 is disposed above the connector 142. Accordingly, the humidity sensor 144 and the like can be arranged in a compact manner without changing the external dimensions of the hinge cover 141 by utilizing a small space inside the hinge cover 141.
  • the detection unit of the humidity sensor 144 is disposed at an intermediate portion in the height direction in the internal space of the hinge cover 141. Therefore, the stagnation of the air around the humidity sensor 144 is small, and it is difficult to be affected by the cold from the inside of the refrigerator 101, so that the detection accuracy is improved.
  • the humidity sensor 144 and the bracket 145 are three-dimensionally and compactly arranged on the connector 142, it is necessary to change the outer dimensions of the hinge cover 141 as compared with the configuration of the conventional hinge cover. Absent. Therefore, since it is not necessary to change the size of the mold required in the manufacturing process of the hinge cover 141, the same mold molding machine as the conventional one can be used, and the mold cost does not fluctuate greatly. In addition, the cost of the mold can be greatly reduced by remodeling the current mold.
  • the base hinge 143 and the connector 142 are arranged before the urethane foaming process, thereby reducing the production man-hours for assembling the refrigerator 101.
  • the humidity sensor 144 is attached to the bracket 145 and accommodated in the base hinge 143 after the urethane foaming process.
  • the base hinge 143 is made of resin from the viewpoint of static electricity, the bottom surface tends to be convex due to the influence of foaming pressure during urethane foaming. For this reason, when the humidity sensor 144 is directly attached to the base hinge 143 without using the bracket 145, when the base hinge 143 is deformed by receiving pressure at the time of urethane foaming, the plane of the portion to which the humidity sensor 144 is attached. The degree is not stable. Therefore, the mounting accuracy of the humidity sensor 144 varies depending on the season or time.
  • the amount of urethane in the main body of the refrigerator 101 depends on the amount of vacuum heat insulating material, piping, or wiring components disposed inside the refrigerator 101, but is approximately 5 kg.
  • the pressure is large. Therefore, in order to prevent deformation of each member of the refrigerator 101, these members are pressed using a jig during the urethane foaming process.
  • the hinge portion 146 including the base hinge 143 is a small part. It is difficult to hold down. Therefore, the hinge part 146 is easily deformed during the urethane foaming process.
  • the refrigerator 101 has a height of nearly 2 m and is hollow inside. Therefore, the portion filled with urethane (heat insulating material) is generally the outer wall portion of the refrigerator 101.
  • urethane foaming process it is necessary to foam without urethane cavities or cracks affecting the cooling performance of the main body of the refrigerator 101. For this reason, the filling amount of urethane may be slightly increased in consideration of the fluidity of urethane. In this case, the foaming pressure is further increased. For this reason, depending on the production environment during production, the member may be easily deformed.
  • the humidity sensor 144 is attached to the bracket 145 and housed in the base hinge 143, so that it is affected by pressure deformation during the urethane foaming process.
  • the humidity sensor 144 can be arranged. Therefore, since the mounting accuracy of the humidity sensor 144 can be increased and the variation in mounting can be reduced, high detection accuracy can be obtained.
  • the humidity sensor 144 and a temperature sensor 171 to be described later are disposed above the reference surface (the flat surface at the top of the outer box) of the top surface 170 of the refrigerator 101. And since it is comprised so that it may become substantially the same horizontal surface as the communicating port opened on the outer periphery of the hinge cover 141, the surrounding air of the humidity sensor 144 becomes difficult to stagnate, and the convection of air arises. improves.
  • a plurality of communication ports 150 are formed in the hinge cover 141 by partially cutting the outer peripheral rib (first rib) 147. Thereby, the outside air around the top surface 170 of the main body of the refrigerator 101 is easily taken into the hinge cover 141, and the detection accuracy is improved.
  • the communication port 150 is provided in the vicinity of the humidity sensor 144 disposed inside the hinge cover 141. Furthermore, in the present embodiment, a humidity sensor 144 is provided on a path connecting the communication ports 150 to improve detection accuracy.
  • a second rib 148 is provided inside the communication port 150 formed by cutting out the first rib 147. Even if water is applied to the hinge cover 141 due to the usage environment of the refrigerator 101 or the like, the presence of the second rib 148 prevents water from entering the humidity sensor 144 and the connection portion of the humidity sensor 144 that are electronic components. Can be prevented.
  • the second rib 148 is provided with a plurality of slits 149 for communicating with the inside of the hinge cover 141 above a height substantially the same as the height at which the humidity sensor 144 is provided.
  • a slit is provided in the horizontal direction between the second rib 148 and the inside of the hinge cover 141.
  • the dimension of the slit 149 is set to, for example, a width of 0.5 mm or less.
  • the slit 149 of the refrigerator 101 of the present embodiment has a dimension (width is 0. 0) that even small insects cannot enter. 5 mm or less).
  • the second rib 148 since the second rib 148 is disposed, the influence of static electricity on the humidity sensor 144 is also prevented. Static electricity is particularly likely to occur during dry seasons in winter.
  • the humidity sensor 144 that is an electronic component may malfunction or fail due to the influence of static electricity.
  • a creeping distance from the top surface 170 of the outer wall of the refrigerator 101 or the metal part of the hinge 140 to which static electricity is easily applied to the humidity sensor 144 is secured. Therefore, malfunction and failure due to static electricity of the humidity sensor 144 can be prevented.
  • a capacitive humidity sensor is used in which the capacitance of the electrode changes in accordance with the amount of moisture as the moisture sensitive film absorbs moisture.
  • the ratio of the detected humidity (relative humidity) near the humidity sensor 144 detected by the humidity sensor 144 and the relative humidity of the outside air (around the refrigerator 101) is a linear (constant) characteristic.
  • the sensor module on which the humidity sensor 144 according to the present embodiment is mounted also includes a temperature sensor (thermistor) 171 for detecting temperature on the substrate (module substrate) 172.
  • the thermistor may misdetect if the ambient temperature fluctuates excessively. Therefore, it is desirable that the temperature sensor 171 is arranged away from the portion where the heat fluctuation occurs due to the structure of the refrigerator 101 to the extent that it is not affected by the temperature.
  • pipes mainly composed of a metal material such as copper or iron are disposed for heat dissipation and surface condensation prevention. Therefore, the temperature sensor 171 is separated from these pipes by 80 mm or more. Is arranged.
  • the heat from the pipe is also transferred to the iron plate covering the outer wall of the refrigerator 101 so that the temperature of the outer wall surface becomes equal to or higher than the dew point temperature of the outside air.
  • the temperature sensor 171 is arranged at a distance of 15 mm or more from the iron plate. Furthermore, since the temperature sensor 171 is arranged away from the pipe, even if static electricity is generated in the pipe portion, it is difficult to apply it to the elements and connection portions of the electronic component.
  • the refrigerator compartment sensor detects that the temperature exceeds the starting temperature of the compressor 117
  • the compressor 117 is started.
  • cooling in the storage is started.
  • the high-temperature and high-pressure refrigerant discharged from the compressor 117 finally reaches a dryer (not shown) disposed in the machine room 119, in particular, a condenser (not shown) and a heat radiating pipe installed in an outer box (Not shown), it is cooled and liquefied by heat exchange with the air outside the outer box and the urethane heat insulating material in the cabinet.
  • the liquefied refrigerant is decompressed by the capillary tube 118, flows into the cooler 112, and exchanges heat with the internal air around the cooler 112.
  • the heat-exchanged cold air is blown into the cabinet by the nearby cold-air fan 113 to cool the inside of the cabinet. Thereafter, the refrigerant is heated, gasified, and returned to the compressor 117.
  • the inside of the refrigerator is cooled and the temperature of the freezer compartment sensor (not shown) becomes equal to or lower than the stop temperature, the operation of the compressor 117 is stopped.
  • the cool air exchanged by the cooler 112 is stirred by the nearby cool air blower fan 113 and blown into the cabinet, but the cool air blow fan 113 may not be provided.
  • a small refrigerator of 150 L or less sold in Japan or a direct cooling refrigerator that is mainstream in an area where the outside air humidity is low overseas may not be equipped with the cold air blowing fan 113.
  • a compressor 117, a condenser (not shown), and a machine room fan are disposed in the machine room 119, and the machine room fan is operated when the outside air temperature is a medium temperature to a high temperature. Cycle efficiency is improved.
  • the cooling operation of the refrigerator 101 is performed by repeating the above operation cycle.
  • the rotating partition 104 is cooled by the influence of the temperature of the refrigerator compartment 105 that has become low temperature.
  • the surface temperature of the air release part (part in contact with outside air) of the partition plate 127 decreases.
  • the dew condensation prevention heater 130 which is a heating prevention portion is energized.
  • the partition plate 127 that forms the suction surface 126 of the door gasket 125 of the rotating partition 104 is made of synthetic resin and has a lower thermal conductivity than that of an iron plate.
  • the heater energization rate for maintaining the dew point temperature of 23.9 ° C. when the temperature is 30 ° C. and the humidity is 70% is about 10% as compared to the case where the partition plate 127 is an iron plate.
  • a humidity sensor 144 and a temperature sensor 171 are mounted on the hinge portion 146 of the top surface portion 170 of the refrigerator 101.
  • the humidity sensor 144 and the temperature sensor 171 always perform a detection operation after the refrigerator 101 is turned on and the operation operation is started.
  • the control part on the control board of the refrigerator 101 calculates and converts the detected voltage into temperature or humidity using a predetermined calculation formula.
  • the humidity sensor 144 when the humidity sensor 144 is not mounted, the outside air humidity cannot be detected, so it is not known whether the surface of the partition plate 127 has reached the dew point temperature. For this reason, based on the temperature detected by the outside air temperature sensor, an assumed temperature at which the relative humidity of the outside air is 100% is calculated, and the energization rate is set so that the temperature of the partition plate 127 is equal to or higher than that temperature. The This prevents the partition plate 127 from reaching the dew point and causing condensation.
  • the dew point temperature can be calculated from the temperature and the relative humidity. And since it suffices to control the heater so that the surface temperature of the partition plate 127 is close to the dew point temperature, the energization rate of the heater can be reduced.
  • the heater energization rate is set so that the surface temperature of the partition plate 127 is equal to or higher than the dew point temperature + 2 ° C. (2K) in consideration of variations in products and installation environments.
  • the dew point temperature is significantly lower than the outside air temperature. Therefore, as in this embodiment, when the energization rate is set according to the dew point temperature calculated based on the temperature and relative humidity, it is compared with the case where the energization rate is set only based on the outside air temperature. As a result, the energization rate can be greatly reduced, so that energy saving can be realized throughout the year.
  • the energization rate of the rotating partition 104 to the dew condensation prevention heater 130 is specifically set as follows. First, using the humidity detected by the humidity sensor 144 and the temperature detected by the temperature sensor 171, the absolute humidity calculated from these and the temperature detected by the outside air temperature sensor of the refrigerator body, etc., the outside air (around the refrigerator) Relative humidity is calculated. Then, the energization rate is determined corresponding to the calculated relative humidity and the outside air temperature.
  • the humidity may vary depending not only on the natural environment but also on the usage environment. For example, during air conditioning cooling in summer, air conditioning heating in winter, or oil fan heater heating. In this case, depending on the installation environment, when the humidity sensor 144 is in the vicinity of the air flow path of the air conditioner, or when the wind of the air conditioner directly hits the air, a rapid humidity fluctuation occurs in the vicinity of the humidity sensor 144. In such a case, it takes time for the temperature and humidity in the room to stabilize. For this reason, the temperature sensor 171 and the humidity sensor 144 may detect a value different from the actual temperature or humidity.
  • the refrigerator 101 when the refrigerator 101 is exposed to wind during heating, the detected temperature is high and the detected humidity is low, but the absolute humidity is hardly affected by the heating.
  • the control of the dew condensation prevention heater 130 using the humidity sensor 144 is hardly affected by the heating, and the high A quality refrigerator 101 can be provided.
  • the air in the room is dehumidified during cooling.
  • the refrigerator 101 of the present embodiment includes the humidity sensor 144 and the temperature sensor 171, the amount of change in absolute humidity before and after being cooled can be known. Therefore, in the control of the dew condensation prevention heater 130 using the humidity sensor 144, the cooling is performed. Therefore, stable control can be performed.
  • the humidity sensor 144 can be provided with a stable and high-quality refrigerator 101 without being affected by air conditioning or the like.
  • the humidity sensor 144 is mounted on the hinge 146, but the present invention is not limited to this as long as it can detect the outside air humidity with high accuracy.
  • a sensor module having a humidity sensor 144 and a temperature sensor 171 in consideration of the appearance of the refrigerator 101, the product specifications inside the refrigerator, the domestic and overseas refrigerator product lineup, the manufacturing process, and the sharing of parts.
  • the structure for attaching and installing the sensor module can be simplified, and the mold cost can be reduced. Therefore, the production cost for the entire product can be suppressed.
  • the sensor module may be mounted on the door portion of the left door 102 or the right door 103.
  • the sensor module having the humidity sensor 144 may be mounted in the machine room 119.
  • the humidity sensor 144 since the humidity sensor 144 is installed in the vicinity of the machine room fan that is installed especially for heat radiation promotion, the outside air is circulated by the forced convection of the fan. Even in a situation where the humidity fluctuates abruptly, such as when the instrument is operated, it is possible to realize detection with very high responsiveness.
  • the humidity sensor 144 by installing the humidity sensor 144 at a location slightly away from the main convection upstream of the machine room fan, it is possible to make it less susceptible to the influence of dust when outside air flows.
  • thermopile thermopile
  • isobutane which is a flammable refrigerant with a low global warming potential
  • Isobutane is a hydrocarbon and has a specific gravity approximately twice that at normal temperature and atmospheric pressure compared to air (at 2.04 and 300K). For this reason, if isobutane leaks from the refrigeration system during the operation and stop of the compressor 117, it leaks downward because it is heavier than air. In particular, when leaking from a high-pressure capacitor in the cooling system, the amount of leakage may increase.
  • the hinge portion 146 where the humidity sensor 144 is disposed is disposed on the top surface portion 170 of the refrigerator 101 and is disposed above the position where the capacitor is disposed. The humidity sensor 144 is very unlikely to be affected.
  • the dew condensation prevention heater 130 is attached to the left door 102 and the temperature sensor 171 and the humidity sensor 144 are attached to the right door 103 is shown, but the present invention is not limited to this example.
  • the condensation prevention heater 130 may be attached to the right door 103 and the temperature sensor 171 and the humidity sensor 144 may be attached to the left door 102.
  • the humidity sensor 144 and the temperature sensor 171 have been described as being configured as sensor modules mounted on the same substrate, which is a common substrate, but are configured separately. May be.
  • Embodiment 2 In the second embodiment of the present invention, an example of refrigerator control that mainly uses the detection results of the humidity sensor 144 and the temperature sensor 171 of the first embodiment described above will be described.
  • the refrigerator 201 of the present embodiment is different from the refrigerator 101 of the first embodiment in that a surface heater 158 is used instead of the front heat radiation pipe 114 of the refrigerator 101 of the first embodiment.
  • the front view which shows the open door state of the door of the refrigerator 201 of Embodiment 2 of this invention is the same as that of FIG.
  • FIG. 8 is a cross-sectional view of the refrigerator 201 according to the second embodiment of the present invention as viewed from the side
  • FIG. 9 is an enlarged cross-sectional view of the heat insulating partition.
  • the 3rd heat insulation partition part 123 is shown as an example.
  • symbol is attached
  • the first heat insulating partition 121, the second heat insulating partition 122, the third heat insulating partition 123, and the fourth heat insulating partition 124 are the same as in the first embodiment.
  • the inside is filled with expanded polystyrene 120. Further, urethane foam is filled on the back side of each heat insulating partition.
  • Each of the heat insulating partition portions has U-shaped metal iron plates 151, 152, 153, and 154 arranged on the outside of the cabinet.
  • the door gasket is adsorbed to each iron plate to prevent cold air from leaking out of the interior.
  • a surface heater 158 is used inside the iron plate instead of the front heat radiating pipe 114 of the first embodiment.
  • the surface heater 158 is disposed so as to be in close contact with the metal iron plate 153 as shown in FIG. 9 as an example of the third heat insulating partition.
  • the energization rate of the voltage applied to the surface heater 158 disposed in each heat insulating partition is calculated using the value of the relative humidity of the outside air calculated according to the humidity detected by the humidity sensor 144. And determined. As a result, it is possible to energize at an energization rate corresponding to the dew point temperature. That is, the heater can be controlled accurately and easily so that the heat insulating partition is at a temperature close to the dew point temperature. Furthermore, since the adhesion between the surface heater 158 and the iron plate is increased as compared with the case where the front heat radiating pipe 114 is used, there is little heat transfer loss.
  • the front heat radiating pipe 114 is used. Compared with, energy saving is possible throughout the year.
  • the front heat radiating pipe 114 When the front heat radiating pipe 114 is disposed in the heat insulating partition portion, the generally circular pipe and the iron plate are in line contact. For this reason, the member for accelerating
  • the surface heater 158 by using the surface heater 158, the iron plate and the surface heater 158 can be brought into contact with each other on the surface, and the contact area of the surface heater 158 with the iron plate is increased. Thereby, heat transfer loss etc. can be prevented and it can heat efficiently. Note that, even if the heat radiating pipe is a flat tube having an elliptical cross section, a heat transfer loss is similarly generated.
  • the distribution of the heat generation capacity (W), the unit heat generation capacity (W / m), and the unit heat generation capacity (W / m) is a temperature range in the adjacent cabinet. It is possible to use optimum heaters that are individually set according to the above. Thereby, even when the same heater control is performed for each surface heater, unnecessary heat generation of the surface heater 158 can be prevented, and the surface temperature of the iron plate of each heat insulating partition can be optimized.
  • the surface heater 158 having a large capacity is used.
  • the heat insulating partition portion adjacent to the refrigeration temperature region has a small temperature difference from the outside air, so that the surface heater 158 in the interior thereof has a small capacity.
  • each corresponding heat insulation partition part become the equivalent surface temperature by controlling an electricity supply rate individually about the some surface heater 158.
  • FIG. since the unit heat generation capacity (W / m) of the plurality of surface heaters 158 can be unified, parts can be shared, and the cost can be reduced.
  • the unit heat generation capacity (W / m) can be changed according to the temperature distribution in an adjacent store
  • the surface temperature of the iron plate of the heat insulating partition is made uniform and there is no variation in temperature distribution, so that power consumption can be further reduced.
  • a heater wire having the same unit heat generation capacity (W / m) may be used, and the length thereof may be changed by a plurality of surface heaters 158. In this case, the heater manufacturing process and management process can be simplified.
  • the metal iron plates 151, 152, 153, and 154 each have a U-shape (angled U-shape) that is bent at approximately 90 degrees on the inner side, but the end face portion is You may have the shape bent 180 degree
  • the end of the iron plate is doubled, the heat from the outside air, the heat radiating pipe, and the heater is transferred to the inside of the warehouse through the end face, and the heat is prevented from entering the interior. it can. Thereby, since the cooling load amount in the warehouse can be reduced, it leads to energy saving.
  • the heat transfer of the cold from the inside to the outside can be suppressed, the surface temperature of the iron plate is hardly lowered. Therefore, the energization rate of the surface heater 158 can be lowered, leading to energy saving.
  • the material of the iron plate of each heat insulating partition may be changed to resin.
  • resins such as ABS resin, polystyrene (PS), and polypropylene (PP) have lower thermal conductivity than iron plates, so heat transfer to the inside of the warehouse is suppressed, enabling further energy saving. become.
  • the first heat insulating partition part to the fourth heat insulating partition part 121, 122, 123, 124 are integrally molded using any of the above-mentioned resins, so that the appearance is improved without misalignment between parts. Can do. At the same time, since the number of parts can be reduced, the number of manufacturing steps and management costs can be reduced, and the cost can be reduced.
  • the expanded polystyrene 120 disposed inside the heat insulating partition may be changed to urethane foam having high heat insulating performance.
  • the urethane foam has a thermal conductivity that represents a heat insulation performance that is about three times that of the polystyrene foam 120, so that the required heater capacity can be reduced.
  • the strength of the heat insulating partition portion is increased by making the foamed polystyrene 120 disposed inside the heat insulating partition portion the urethane foam having high heat insulating performance, thereby increasing the strength of the main body. be able to.
  • strength will become still stronger.
  • the heater energization rate is calculated and determined using the value of the relative humidity of the outside air calculated according to the humidity detected by the humidity sensor 144. Therefore, as a result, the heater can be controlled at an energization rate corresponding to the dew point temperature determined from the temperature and humidity, and thus energy saving can be realized throughout the year.
  • the side heat dissipating pipe disposed on the side surface may be extended to the vicinity of the front door of the refrigerator 201 on the side surface.
  • the refrigerator 301 of the present embodiment is different from the refrigerator 101 of the first embodiment in that a control valve 139 that switches the refrigerant flow path in the refrigeration cycle of the refrigerator 301 is used.
  • the front view which shows the door opening state of the door of the refrigerator 301 of Embodiment 3 of this invention is the same as that of FIG.
  • FIG. 10 is a sectional view of the refrigerator according to the third embodiment of the present invention viewed from the side.
  • the same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and different portions will be described.
  • a compressor 117 As shown in FIG. 10, a compressor 117, a condenser (not shown), a heat radiating pipe including a front heat radiating pipe 114, a capillary tube 118, and a cooler 112 are annularly connected in this order, A refrigeration cycle is formed.
  • a control valve 139 is disposed in a machine room 119 in which the compressor 117 is provided. The control valve 139 adjusts switching of the flow path of the refrigerant sealed in the refrigeration cycle.
  • the control valve 139 is connected between the capacitor and the heat radiating pipe, and switches between a case where the front heat radiating pipe 114 is included in the path and a case where the front heat radiating pipe 114 is not included in the path by passing through the bypass pipe. .
  • the humidity detected by the humidity sensor 144 is determined by the humidity sensor 144, which is the ratio of the energization rate of the control valve 139, which is the ratio of the time during which the refrigerant flows into the front heat radiating pipe 114 disposed in each heat insulating partition. Is calculated and determined using the value of the relative humidity of the outside air calculated according to the above. Thereby, the energization rate according to dew point temperature is set as a result. For this reason, it is possible to minimize the entry of heat higher than the outside air into the cabinet from the heat radiating pipe that has been heated to a high temperature by the high-temperature refrigerant. As a result, the cooling load can be reduced. Further, since the rotation speed of the compressor 117 can be reduced accordingly, further energy saving can be realized throughout the year.
  • control valve 139 is disposed in the machine room 119 above the refrigerator 301, but may be disposed in a machine room provided at the lower part of the refrigerator 301.
  • the control valve for flow volume adjustment may be used.
  • a valve like the control valve 139 of this Embodiment it supplies with electricity so that the case where the refrigerant
  • the average temperature of the front heat radiating pipe 114 is lowered, and the surface temperature of each of the iron plates 151, 152, 153, 154 is brought close to the dew point temperature.
  • a flow rate adjusting valve is used, the average temperature of the surfaces of the iron plates 151, 152, 153, and 154 can be brought close to the dew point temperature by adjusting the circulation amount of the refrigerant.
  • the flow path of the refrigerant flowing through the front heat radiating pipe 114 is switched by the control valve 139, but in addition to the front heat radiating pipe 114, a side heat radiating pipe (not shown) and a rear heat radiating pipe (see FIG. (Not shown), the flow path of the refrigerant flowing through the heat radiating pipe may be switched as a whole including the heat radiating pipes or independently of the heat radiating pipes.
  • the present invention improves the detection accuracy of the humidity sensor, maintains the appearance quality at a high level, and controls the dew condensation prevention unit according to the detection result of the humidity sensor, thereby reducing power consumption.
  • a refrigerator can be provided.
  • the component when an electronic component such as a sensor for detecting the temperature and humidity of the outside air is arranged in the hinge portion, the component can be highly integrated and the mounting configuration can be simplified. Furthermore, since the power consumption can be minimized when condensation is prevented by improving the detection accuracy of the sensor, energy saving and quality improvement can be achieved. Therefore, it can be widely used for household and commercial refrigerators and other freezing and refrigeration apparatuses.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Refrigerator Housings (AREA)

Abstract

Réfrigérateur pourvu : de portes qui sont disposées sur la droite et la gauche d'une section supérieure ; d'un corps de séparation rotatif, qui se situe sur l'une des portes, et comporte un dispositif de chauffage empêchant la condensation de rosée ; d'un capteur de température (171) ; d'un capteur d'humidité (144) ; et d'une unité de commande qui commande l'excitation du dispositif de chauffage empêchant la condensation de rosée sur la base d'une entrée provenant du capteur de température (171) et du capteur d'humidité (144). Le capteur de température (171) et le capteur d'humidité (144) sont disposés en étant recouverts d'un couvercle articulé (141) qui recouvre une charnière de l'autre porte.
PCT/JP2016/003601 2015-08-20 2016-08-04 Réfrigérateur WO2017029782A1 (fr)

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EP16836780.3A EP3339775A4 (fr) 2015-08-20 2016-08-04 Réfrigérateur
CN201680048405.XA CN107923690A (zh) 2015-08-20 2016-08-04 冷藏库

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