WO2018010395A1 - 一种冰箱 - Google Patents

一种冰箱 Download PDF

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Publication number
WO2018010395A1
WO2018010395A1 PCT/CN2016/113466 CN2016113466W WO2018010395A1 WO 2018010395 A1 WO2018010395 A1 WO 2018010395A1 CN 2016113466 W CN2016113466 W CN 2016113466W WO 2018010395 A1 WO2018010395 A1 WO 2018010395A1
Authority
WO
WIPO (PCT)
Prior art keywords
compartment
cold air
refrigerator
door
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/113466
Other languages
English (en)
French (fr)
Inventor
宫本胜平
大汤英树
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Co Ltd
Haier Asla Co Ltd
Original Assignee
Qingdao Haier Co Ltd
Haier Asla Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Co Ltd, Haier Asla Co Ltd filed Critical Qingdao Haier Co Ltd
Publication of WO2018010395A1 publication Critical patent/WO2018010395A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • F25D17/045Air flow control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices

Definitions

  • the present invention relates to a refrigerator, and more particularly to a refrigerator including a plurality of storage compartments and communicating with each other via a duct.
  • the ordinary refrigerator includes a plurality of storage compartments for cooling the frozen objects such as foods, and the cold air in the cooling room is cooled by an evaporator, that is, a cooler, and the cold air is blown from the cooling chambers to the respective storage compartments through the air supply ducts, thereby ensuring Each storage compartment maintains a specified temperature inside the tank. Further, the cold air cooled by each storage compartment is returned to the cooling chamber via the return air passage.
  • FIG. 12 is a front elevational view of the refrigerator 100 of the document.
  • the refrigerator 100 has a top refrigerating compartment 120 and a freezing compartment 130.
  • the cold air cooled by the cooler is not shown in the drawings and is blown to the refrigerating compartment 120 and the freezing compartment 130 via the respective blowing ducts.
  • the cold air supplied from the cooler is blown to the cold air supply ducts 101, 102, 103, and 104 of the refrigerating compartment 120, and the inlet baffles 105, 106, 107, and 108 are respectively provided.
  • outlet baffles 113, 114, and 115 are provided on the cool air return air passages 109, 110, 111 which return cold air from the storage compartment to the cooler zone, respectively.
  • the drawing from the freezing compartment 130 is not shown to be provided with an outlet baffle 116 on the cold air return duct.
  • all or a portion of the inlet baffles 105, 106, 107, 108 and the outlet baffles 113, 114, 115, 116 are closed during the defrosting process.
  • the refrigerator 100 of the structure has some hidden dangers, for example, in the case where the refrigerator 100 is used, the doors that close the respective storage compartments may be inadvertently opened.
  • each of the baffles is in an open state. Therefore, the refrigerating compartment 120 and the freezing compartment 130 penetrate each other through the cool air supply ducts 101, 102, 103, and 104 and the cool air return ducts 109, 110, and 111.
  • the drawing in which the refrigerating compartment 120 is closed does not indicate that the door is opened, it is closed by the force, which may cause the cold air inside the refrigerating compartment 120 to pass through the cold air supply ducts 101, 102, 103, 104 and the cool air return ducts 109, 110.
  • 111 flows into the freezing compartment 130.
  • the internal pressure of the freezing compartment 130 is increased, and the door closing the freezing compartment 130 is directly opened without a user's operation. In this way, the user needs to manually close the open door, which is cumbersome. Moreover, the cold air in the freezer room will run from the open door to the outside, increasing power consumption.
  • an object of the present invention is to provide a refrigerator which can prevent other doors from being inadvertently opened when a user performs a switching operation of a door.
  • an embodiment of the present invention provides a refrigerator including: a refrigerator main body including a first storage compartment and a second storage compartment; and a first closing of the opening of the first storage compartment a second door that closes the opening of the second storage compartment; a cooler that cools the cold air supplied to the first storage compartment and the second storage compartment; and a cooling chamber that stores the cooler; a cooling chamber that supplies the passage opening of the cold air to the first storage chamber and the second storage chamber; a shielding device that blocks the opening; and a supply chamber from the cooling chamber to the first storage chamber a passage for cooling air, that is, a supply duct; a return air passage that returns the cold air from the first storage chamber to the cooling chamber; a detecting device that detects a condition of the first door switch; and a detecting device according to the detecting device And outputting a control device for controlling the occlusion device; the control device blocks the opening portion by the occlusion device according to an output of the detecting device that displays the first door being
  • the refrigerator further includes a duct switch for adjusting the amount of the cold air flowing through the supply duct, the control device according to the state in which the first door is opened. The output of the detecting device is blocked by the air duct switch.
  • control device accumulates the time when the defrosting operation of the cooler is not performed, and when the accumulated time exceeds the predetermined first time, instructs the occlusion device to perform an opening operation.
  • the control device blows the cold air to the first storage compartment when the temperature in the tank of the first storage compartment is higher than or equal to the first temperature.
  • the cold air is blown to the second storage compartment, and further, the temperature of the tank of the first storage compartment by the control device is If the first temperature is not reached, and the temperature of the second storage compartment is higher than or equal to the second temperature, and the cumulative time is higher than or equal to the expected second time, the command is executed.
  • the blocking device performs an opening action.
  • the shielding device includes: a fan shutter for shielding a fan disposed at the opening; a driving shaft threadedly coupled to the fan shutter; and driving the driving shaft to rotate
  • the motor drives the fan shutter to move in an opening direction by applying a voltage to the motor of the shutter device in an open state.
  • the present invention has the following beneficial technical effects:
  • the cooling chamber opening can be blocked by the shielding device, and the air passage connecting the first storage chamber and the second storage chamber via the return air passage can be blocked.
  • the air passage connecting the first storage chamber and the second storage chamber via the return air passage can be blocked.
  • the occlusion device When the time when the defrosting operation is not performed reaches or exceeds a certain time, the occlusion device is instructed to perform an opening action to remove the ice coating. Therefore, it is possible to prevent the ice from obstructing the operation of the shielding device.
  • the command occlusion device performs the opening operation to remove the ice coating on the occlusion device, thereby preventing the ice icing from obstructing the switching operation of the occlusion device.
  • FIG. 1 is a front view showing a refrigerator according to an embodiment of the present invention.
  • FIG. 2 is a side cross-sectional view showing a schematic structure of a refrigerator according to an embodiment of the present invention
  • FIG. 3 is a front elevational view showing a supply duct of a refrigerator according to an embodiment of the present invention
  • FIG. 4 is a side cross-sectional view showing a structure in the vicinity of a cooling chamber of a refrigerator according to an embodiment of the present invention
  • FIG. 5 is a block diagram of a refrigerator according to an embodiment of the present invention, wherein (A) is an exploded perspective view and (B) is an oblique view;
  • FIG. 6 is a block diagram showing a connection structure of a refrigerator according to an embodiment of the invention.
  • FIG. 7 is a schematic diagram of a refrigerator and a flowchart of a refrigerator control method according to an embodiment of the invention.
  • FIG. 8 is a schematic diagram of a refrigerator and a flowchart of a refrigerator control method according to an embodiment of the invention.
  • FIG. 9 is a side cross-sectional view showing a cold airflow near a cooling chamber of a refrigerator according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a refrigerator and another flowchart of a refrigerator control method according to an embodiment of the present invention.
  • FIG. 11 is a side cross-sectional view showing a cold air flow direction near a cooling chamber of a refrigerator according to an embodiment of the present invention.
  • Fig. 12 is a front view of a refrigerator according to the background art.
  • the refrigerator 1 is a front external view showing a schematic configuration of a refrigerator 1 according to an embodiment of the present invention.
  • the refrigerator 1 provided in the present embodiment has a heat insulating box 2 as a refrigerator main body, and a storage compartment for storing food or the like is formed inside the heat insulating box 2.
  • the storage compartment includes: a topmost refrigerating compartment 3; an ice making compartment 4 on the left side of the lower layer; a top freezer compartment 5 on the lower right side thereof; a bottom freezing compartment 6 in the next lower layer; and a vegetable compartment 7 in the lowermost layer .
  • the ice making compartment 4, the top floor freezing compartment 5, and the bottom layer freezing compartment 6 are storage compartments in a freezing temperature range, and may be collectively referred to as a freezing compartment 4A in the following description.
  • the front side of the heat insulating box 2 has an opening, and the opening corresponding to the refrigerating chamber 3 or the like is provided with a door or the like which can be freely opened and closed.
  • the doors 8a and 8b block the front surface of the refrigerating compartment 3 in two pieces, and the upper left and lower left sides of the door 8a and the upper right and lower right of the door 8b are placed on the heat insulating box 2, and are freely rotatable.
  • the door 9 to the door 12 are integrally formed with the respective storage containers on the heat insulating box 2, and can be freely pulled out in front of the refrigerator 1.
  • the door 8 for closing the refrigerating compartment 3, which is the first storage compartment corresponds to the first door
  • the door 9 or the like for closing the freezing compartment 4A of the second storage compartment corresponds to the second door.
  • a switch sensor 30 is provided on the heat insulating box 2 for detecting the switching condition of the door 8.
  • the switch sensor 30 may be a so-called switch sensor that senses pressure when the doors 8a, 8b are closed, or a magnetic sensor that senses the magnetic strength of the magnetic body provided on the doors 8a, 8b.
  • the other sensors 9, 10, 11, 12 provided on the refrigerator 1 may be provided with the switch sensor 30.
  • FIG. 2 is a side cross-sectional view showing a schematic configuration of the refrigerator 1.
  • the heat insulating box 2 as the main body of the refrigerator 1 includes: an outer box 2a made of a steel plate having an opening at the front; an inner box 2b provided with a gap in the outer box 2a and having an opening, and a synthetic resin material inside the front;
  • the urethane foam heat insulating material 2c is filled between the outer box 2a and the inner box 2b; in addition, the door 8 to the door 12 also employ the heat insulating structure of the heat insulating box 2.
  • the refrigerating compartment 3 is separated from the freezing compartment 4A located in the lower layer by a heat insulating partition wall 28.
  • the ice making compartment 4 inside the freezing compartment 4A and the top floor freezing compartment 5 are separated by a partition wall not shown in the drawing. Further, the ice making chamber 4 and the top freezing chamber 5 are interpenetrated with the lower freezing chamber 6 provided in the lower layer, and the cold air can flow freely. Further, the freezing compartment 4A and the vegetable compartment 7 are separated by a heat insulating partition wall 29.
  • the back surface of the refrigerating compartment 3 is separated by a separator 45 made of a synthetic resin material, and a refrigerating compartment supply duct 1 that supplies cold air to the refrigerating compartment 3 is formed.
  • the refrigerating compartment supply duct 14 has an air outlet 17 for blowing cold air to the refrigerating compartment 3.
  • a refrigerating compartment supply duct 14 is provided with a duct switch, that is, a refrigerating compartment flapper 25.
  • the refrigerating compartment shutter 25 is a freely switchable baffle driven by a motor or the like for controlling the flow rate of the cold air supplied to the refrigerating compartment 3 to maintain a proper temperature inside the refrigerating compartment 3.
  • a freezer compartment supply duct 15 that blows cold air cooled by the cooler 32 to the freezing compartment 4A is provided.
  • the deeper side of the freezer compartment supply duct 15 is provided with a cooling chamber 13 which is internally provided with a cooler 32 which is an evaporator for circulating cold air in the cooling tank.
  • the cooler 32 is connected to the compressor 31 through a refrigerant pipe, the drawing is not labeled with a radiator, and the drawing is not labeled with a capillary expansion. On the expansion valve, a vapor compression refrigeration circuit is formed.
  • the refrigerator 1 further includes a refrigerating compartment temperature sensor 42 for detecting the internal temperature of the refrigerating compartment 3, a freezing compartment temperature sensor 43 for detecting the internal temperature of the freezing compartment 4A, and other drawings, not indicating various sensors.
  • the refrigerator 1 further includes a control device 34 not shown in the drawing, and the control device 34 performs a specified arithmetic processing according to the input value of the sensor type, and controls the compressor 31, the blower 35, the blocking device 50, Each component of the refrigerating compartment baffle 25 and the like.
  • FIG. 3 is a front elevational view showing a schematic configuration of a supply duct of the refrigerator 1.
  • the refrigerating compartment supply duct 14 that supplies cold air to the refrigerating compartment 3 blows cold air to the topmost portion at the center position of the refrigerating compartment 3, and then the cold air descends from both sides. Thus, it is possible to efficiently supply cold air to the entire interior of the refrigerating compartment 3.
  • the refrigerator 1 has a return air duct 20 that blows air from the refrigerating compartment 3 to the cooling chamber 13. Below the refrigerating compartment 3, there is a return port 22 that is an opening that connects the return air duct 20. The air in the refrigerating compartment 3 flows through the return port 22 to the return duct 20 and flows below the cooler 32.
  • a vegetable compartment supply duct 16 that blows air cooled by the cooler 32 to the vegetable compartment 7 is provided in front of the return air duct 20.
  • the vegetable compartment supply duct 16 branches upward from the freezer compartment supply duct 15, and is turned downward through the inside of the heat insulating partition 28 above the freezing compartment 4A, and passes to the depth of the freezing compartment 4A. Then, it penetrates the heat insulating partition wall 29 and is connected to the vegetable compartment 7.
  • the vegetable compartment 7 is provided with an air outlet 19 which is an opening for blowing cold air from the vegetable compartment supply duct 16.
  • the vegetable compartment supply duct 16 is provided with a vegetable compartment flap 26 that controls the supply of cold air flow to the vegetable compartment 7.
  • the cooling of the vegetable compartment 7 can be independently performed separately from the cooling of the refrigerating compartment 3, and the temperature of the vegetable compartment 7 can be controlled to an appropriate temperature.
  • the vegetable compartment 7 is provided with a return port 24, and the air in the vegetable compartment 7 comes out of the return port 24, and flows through the vegetable compartment return air passage 21 and the return port 13b to the lower side of the cooling chamber 13.
  • the cooling chamber 13 is provided on the depth side of the freezer compartment supply duct 15.
  • the cooling chamber 13 and the freezing chamber 4A are separated by a separator 46 made of a synthetic resin material. That is, the cooling chamber 13 is a space sandwiched between the inner box 2b and the partition 46.
  • the freezer compartment supply duct 15 provided in front of the cooling chamber 13 is a space formed between the partition body 46 and the front end 47 of the synthetic resin material in front thereof, and serves as an air passage to blow the cold air cooled by the cooler 32.
  • the front door 47 is provided with an air outlet 18 which is an opening for blowing cold air into the freezing compartment 4A.
  • a lower surface back surface of the bottom freezing compartment 6 is provided with a return port 23 for returning air from the freezing compartment 4A to the cooling compartment 13. Then, a return port 13b is provided below the cooling chamber 13, and is connected to the return port 23, and the recirculated cold air from each storage chamber is sucked into the inside of the cooling chamber 13.
  • a defrosting heater 33 is provided below the cooler 32 for melting and removing frost attached to the cooler 32.
  • the defrosting heater 33 is a resistance heating heater.
  • the air outlet 13a is provided above the partition 46, and is an opening which connects each storage compartment. That is, the air supply port 13a is an opening for blowing cold air cooled by the cooler 32, through which the cooling chamber 13, the refrigerating compartment supply duct 14, the freezing compartment supply duct 15, and the vegetable compartment supply duct shown in FIG. 16 interpenetrating.
  • the air blowing port 13a is provided with a fan 35 that blows cold air to the freezing compartment 4A or the like.
  • the blower 35 is an axial flow fan having a rotary vane 37 and a sleeve 36 which forms a wind tunnel 36a which is shaped like a cylindrical opening.
  • the sleeve 36 is installed at the air supply port 13a of the cooling chamber 13.
  • the sleeve 36 is provided with a vane 37 disposed coaxially with the wind tunnel 36a.
  • a shielding device 50 having a fan shutter for blocking the air blowing port 13a is disposed outside the air blowing port 13a of the cooling chamber 13. 51.
  • the shutter 50 is firmly attached to the sleeve 36 of the blower 35 by its support base 53.
  • One side of the fan shutter 51 facing the cooling chamber 13 is formed into a concave shape.
  • the fan shutter 51 does not come into contact with the vane 37 which protrudes toward the exhaust side than the sleeve 36, and can abut against the support base 53 outside the wind tunnel 36a, thereby blocking the air supply port 13a.
  • the fan shutter 51 is moved in the front-rear direction by the rotation of the drive shaft 61.
  • a gap is left between the shielding device 50 and the fan shutter 51 to accommodate the movement of the fan shutter 51 in the forward and backward directions.
  • the upper side of the fan shutter 51 is provided with an opening and is provided with a sensing duct 59 that blocks the opening.
  • the induction duct 59 constitutes a part of the refrigerating compartment supply duct 14a.
  • FIG. Fig. 5(A) is a perspective view showing the constituent members of the shutter device 50 in a front-rear direction
  • Fig. 5(B) is a perspective view showing the shutter device 50 in an open state.
  • the shutter device 50 includes a fan shutter 51 covering the blade 37, and a support base 53 for mounting the fan shutter 51 on the main body of the refrigerator 1. Further, as described above, the induction duct 59 is connected between the fan shutter 51 and the air passage on the refrigerator main body side.
  • the main function of the shutter 50 is to supply cold air generated by the rotation of the blades 37 to the desired storage compartment by placing the blades 37 in an appropriately open or closed state. Further, by placing the shutter 50 in the closed state, it is possible to suppress the flow of hot air generated in the defrosting process of the cooler 32 to the freezing compartment 4A or the like.
  • the blower shutter 51 is a product which is formed into a substantially lid shape by a forming process, and includes a main square portion 69 which is close to a square shape, and a side surface portion 70 which extends rearward from the edge of the main surface portion 69. Further, a circular through hole, that is, a screw hole 63 is formed in the vicinity of the center of the main surface portion 69, and the inner side surface of the screw hole 63 is screwed to form a screw groove. Further, the side surface portion 70 located above the fan shutter 51 is opened to form the opening portion 64. The opening portion 64 is connected to the opening 65 of the induction conduit 59 in a state where the fan shutter 51 blocks the fan 35.
  • a support hole 62 is provided in the vicinity of the lower left corner portion and the upper right corner portion of the fan shutter 51 for inserting a guide rod 54 which will be described later.
  • the fan shutter 51 functions to substantially block the vane 37 disposed at the air supply port 13a of the cooling chamber 13 as will be described later. Further, since the opening portion 64 is provided above the fan shutter 51, even if the fan shutter 51 blocks the blade 37, the cold air sent from the blade 37 is supplied to the refrigerator compartment 3 via the opening 64.
  • the drive shaft 61 is close to a cylindrical shape, and a part of its side surface is provided with a continuous spiral protrusion, that is, a thread.
  • the thread is not marked in the drawing.
  • the thread formed on the side of the drive shaft 61 and the thread groove formed on the side of the screw hole 63 of the fan shutter 51 are screwed under use.
  • the inside of the drive shaft 61 is provided with a motor not shown in the drawing, and the driving force of the motor drives the drive shaft 61 to rotate at a prescribed angle. Assuming that the drive shaft 61 rotates clockwise, the fan shutter 51 will leave the support base 53 and form a gap between the fan shutter 51 and the support base 53 to be in an open state.
  • the drawing does not indicate that cold air sent from the blades 37 is supplied to the freezing compartment 4A via the gap.
  • the drive shaft 61 rotates counterclockwise, the side surface portion 70 of the fan shutter 51 is firmly attached to the support base 53, and the gap is not formed, and is closed.
  • the drawing does not indicate that the cold air sent from the blades 37 is not supplied into the freezing compartment 4A, but is supplied to the refrigerating compartment 3 via the opening 64 and the induction duct 59.
  • the support base 53 mainly includes: a frame portion 71 having a planar view in a quadrangular shape; a shaft support portion 72 supporting the drive shaft 61 at the center position; and a support frame 60 connecting the shaft support portion 72 and the frame portion 71; The guide rod 54 of the lower left corner and the upper right corner of the portion 71.
  • the frame portion 71 mechanically supports the entire support base 53 with a plurality of hole positions 73 in the vicinity of the angular position. As shown in FIG. 4, the shielding device 50 including the frame portion 71 is fixed to the separator 46 by a fixing means such as a screw penetrating the hole position 73.
  • the guide rod 54 is a cylindrical member that is erected at a corresponding position of the support hole 62 of the fan shutter 51. Each of the guide rods 54 is inserted into the support hole 62 and stabilized by the sliding guide fan shutter 51.
  • the induction duct 59 is made of a plate-like synthetic resin, and the opening portion 65 at the lower end thereof is arranged at a position that coincides with the opening portion 64 of the fan shutter 51 in the closed state.
  • the opening 65 of the induction duct 59 and the opening 64 of the blower shutter 51 have substantially the same shape and size.
  • the rear side opening of the induction duct 59 is connected to the refrigerating compartment supply duct 14a shown in FIG.
  • the induction duct 59 functions to open a space between the internal space of the fan shutter 51 and the air passage connecting the refrigerator compartments 3.
  • the driving force of the drive shaft 61 drives the fan shutter 51 to move forward.
  • the rear end of the side surface portion 70 of the fan shutter 51 is spaced apart from the support base 53, and a gap is formed between the fan shutter 51 and the support base 53.
  • the opening portion 64 located above the fan shutter 51 is not in communication with the opening portion 65 located below the induction duct 59.
  • the blade 37 shown in Fig. 4 is rotated to supply air, the sent cold air is supplied to the freezing compartment 4A shown in Fig. 2 via the gap.
  • the drive shaft 61 is driven to rotate, for example, counterclockwise.
  • the fan shutter 51 moves rearward, and the rear end portion of the side surface portion 70 of the fan shutter 51 abuts against the front surface of the support base 53.
  • the air blower 37 shown in Fig. 4 is driven to rotate the air, the sent cold air is not supplied to the freezing compartment 4A shown in Fig. 2, but is supplied only to the refrigerating compartment 3.
  • the opening portion 64 located at the tip end of the fan shutter 51 protrudes upward in four directions to form an overlapping portion 66.
  • the opening portion 65 located at the bottom end of the induction duct 59 is convexly formed on the four sides to form an overlapping portion 67. Therefore, if the fan shutter 51 is placed in the closed state, the overlapping portion 66 of the fan shutter 51 and the overlapping portion 67 of the induction conduit 59 will overlap. According to the related configuration, when the fan shutter 51 is placed in the closed state, the airtightness of the joint portion of the fan shutter 51 and the induction conduit 59 is increased, and leakage of cold air from the joint portion can be suppressed.
  • the refrigerator 1 includes a control device 34 composed of, for example, a CPU, an input side terminal of the control device 34 and a switch sensor 30, a refrigerating compartment temperature sensor 42, a freezer compartment temperature sensor 43, and an outboard air temperature sensor 48. connection. Further, the output side terminal of the control device 34 is connected to the refrigerating compartment shutter 25, the vegetable compartment shutter 26, the shielding device 50, the compressor 31, and the defrosting heater 33.
  • the control device 34 controls the refrigerator compartment shutter 25 and the like based on an electric signal input from the switch sensor 30 or the like connected to the input side terminal, and controls the temperature inside the compartment of each storage compartment to a predetermined temperature range.
  • control device 34 includes a timer not shown in the drawing and a storage device such as a RAM or a ROM.
  • the storage device stores parameters such as time and temperature to be described later, a program for executing the control method to be described later, and the like.
  • the compressor 31 is operated in accordance with an instruction from the control unit 34, the refrigerator compartment shutter 25 is opened, and the fan 35 is operated. At this time, the fan shutter 51 is in a closed state.
  • the air cooled by the cooler 32 sequentially passes through the air supply port 13a of the cooling chamber 13, the fan 35, the internal space of the fan shutter 51, the induction duct 59, the refrigerating compartment shutter 25, the refrigerating compartment supply duct 14, and the air outlet 17, It is supplied to the refrigerating compartment 3.
  • the air supply port 13a of the cooling chamber 13 the fan 35, the internal space of the fan shutter 51, the induction duct 59, the refrigerating compartment shutter 25, the refrigerating compartment supply duct 14, and the air outlet 17, It is supplied to the refrigerating compartment 3.
  • the circulating cold air supplied to the inside of the refrigerating compartment 3, as shown in FIG. 3, is returned from the return port 22 to the inside of the cooling chamber 13 via the return air passage 20. Thereby, it is cooled again by the cooler 32.
  • the control device 34 controls the cold air supply to ensure that the temperature inside the refrigerator compartment 3 is within a specified temperature range.
  • the control device 34 operates the compressor 31 and uses the blower 35 to pass the cooler 32.
  • the cooled cold air is blown to the refrigerating compartment 3.
  • the sent cold air is supplied to the refrigerating compartment 3 through the shutter 50, via the refrigerating compartment flap 25, the refrigerating compartment supply duct 14, and the air outlet 17.
  • the control device 34 stops the supply of air to the refrigerator compartment 3.
  • the first temperature which is the upper limit temperature, is also referred to as an ON point, and may be set to, for example, about +5 °C. Further, the lower limit temperature is also referred to as an OFF point and may be set, for example, at +2 °C.
  • the compressor 31 is operated, the refrigerating compartment shutter 25 is closed, the fan 35 is operated, and the fan shutter 51 is opened to cool the freezing compartment 4A.
  • the fan shutter 51 is separated from the support base 53. In this way, the air cooled by the cooler 32 is sent out by the blower 35 disposed at the air blowing port 13a of the cooling chamber 13, and sequentially supplied to the air duct 15 and the air outlet 18 through the freezer compartment, and is supplied only to the freezing compartment 4A.
  • the air inside the freezing compartment 4A flows through the return port 23 located deep in the bottom freezing compartment 6, and flows into the inside of the cooling compartment 13 via the return port 13b of the cooling chamber 13.
  • the control device 34 controls the cold air supply to ensure that the temperature inside the freezer compartment 4A is within a specified temperature range. Specifically, when the temperature inside the refrigerator compartment 3 measured by the freezer compartment temperature sensor 43 is higher than or equal to the upper limit temperature, that is, the second temperature, the control device 34 blows cold air to the freezing compartment 4A. Specifically, the control device 34 operates the compressor 31 and sends out the cool air cooled by the cooler 32 by the blower 35. The sent cold air is supplied to the freezing compartment 4A through the shielding device 50 through the air supply passage 15 and the air outlet 18 through the freezing compartment. Then, when the temperature inside the freezer compartment 4A measured by the freezing compartment temperature sensor 43 reaches the lower limit temperature, the control device 34 stops the supply of air to the freezing compartment 4A.
  • the second temperature which is the upper limit temperature, is also referred to as an ON point, and may be set, for example, at about -18 °C. Further, the lower limit temperature is also referred to as an OFF point and may be set, for example, at -22 °C.
  • the vegetable compartment baffle 26 shown in Fig. 3 is opened, and part of the air blown to the freezer compartment supply duct 15 by the blower 35 flows into the vegetable compartment supply duct 16, and then exits from the air outlet 19 and is blown. Vegetable room 7. In this way, the inside of the vegetable compartment 7 can be cooled. Thereafter, the cold air circulating in the vegetable compartment 7 is returned from the return port 24 shown in Fig. 3, and sequentially passes through the return air passage 21 and the return port 13b of the vegetable compartment, and is returned to the cooling chamber 13.
  • the temperature inside the tank of the vegetable compartment 7 can also be controlled within the specified range as described above.
  • the control device 34 shortens the distance between the fan shutter 51 and the support base 53 to be smaller than the distance length when only the freezing chamber 4A is cooled. For example, the control device 34 shortens the distance between the fan shutter 51 and the support base 53 to about half of that when only the freezer compartment 4A is cooled. Then, the control device 34 places the refrigerating compartment shutter 25 in an open state. In this state, if the cold air cooled by the cooler 32 is sent out by the vane 37 according to the instruction of the control unit 34, part of the sent cold air is supplied from the gap between the blower shutter 51 and the support base 53 to the freezing. The chamber 4A, and another portion of the cold air is supplied to the refrigerating chamber 3 via the induction duct 59, the refrigerating compartment flapper 25, and the refrigerating compartment supply duct 14.
  • the compressor 31 is stopped according to an instruction from the control device 34, and the defrosting heater 33 is energized to melt the frost adhering to the cooler 32.
  • the control device 34 places the fan shutter 51 in the closed state, blocks the air supply port 13a, and closes the refrigerator compartment shutter 25.
  • FIG. 1 a control principle for preventing the doors on the refrigerator 1 from being inadvertently opened will be described with reference to Figs. 7 to 11 in conjunction with the respective drawings.
  • the control principle detailed below referring to FIG. 1, it is possible to prevent the door 9 or the like that closes the freezing compartment 4A from being opened when the user performs the switching operation of the door 8 of the refrigerating compartment 3. Further, it further includes a protection mechanism for preventing the blocking device 50 from freezing due to the long defrost cycle.
  • Fig. 7 is a control flow chart for preventing the door opening operation
  • Fig. 8 is a control flow chart for judging whether or not it is necessary to perform the control for preventing the blocking device 50 from freezing
  • Fig. 9 is a side sectional view showing the cold air flow when the above control is performed
  • FIG. 11 is a side cross-sectional view showing the cold air flow when another control method is performed.
  • each parameter is initialized. That is, the control device 34 turns off the anti-freeze protection flag (FLAG), clears the count timer A, and clears the count timer B.
  • FLAG anti-freeze protection flag
  • step S11 it is determined by the control device 34 whether or not the anti-freeze protection of the occlusion device 50 is performed.
  • the shutter device 50 is a duct control device for controlling the cold airflow passage cooled by the cooler 32, and the blower shutter 51 is executed by driving the drive shaft 61 to rotate according to the instruction of the control device 34. Switching action.
  • the drive shaft 61 is screwed to the fan guard 51. Further, when the defrosting process is performed, the fan shutter 51 is in a closed state, and when each storage compartment performs a cooling operation, it is mostly in an open state.
  • step S11 will be described later with reference to FIG. 8.
  • step S12 it is determined by the control device 34 whether or not the chiller 32 is to be defrosted. If defrosting is performed, that is, YES in step S12, the process goes to step S14, and it is judged by the control device 34 whether or not the occlusion device 50 is in the on state. In step S14, if NO, the occlusion device 50 is already in the closed state, and it is not necessary to perform the closing operation again, so the process returns to the step S11. On the contrary, if YES in step S14, the occlusion device 50 is in the on state, and therefore, in accordance with the instruction of the control device 34, the occlusion device 50 is placed in the off state in step S15.
  • the fan shutter 51 of the shielding device 50 blocks the air blowing port 13a, and prevents the hot air inside the cooling chamber 13 heated by the heat released by the defrosting heater 33 from entering the freezing chamber 4A or the like.
  • step S12 if NO, the defrosting process is not executed, and the process proceeds to step S13, and the control device 34 determines whether or not the door 8 provided in the refrigerating compartment 3 is in an open state. The determination as to whether the door 8 is in the open state is performed by the control device 34 based on the input information input by the switch sensor 30 to the control device 34.
  • step S13 if it is YES, it means that the door 8 is in the open state, so the process goes to the step S14 and the step S15, and the control device 34 will cover it.
  • the blocking device 50 is placed in a closed state.
  • the refrigerating compartment 3 and the freezing compartment 4A are mutually penetrated via a refrigerating compartment supply duct 14. Further, the refrigerating compartment 3 and the freezing compartment 4A penetrate each other via the return duct 20, the cooling chamber 13, and the air blowing port 13a. Therefore, when the drawing in which the refrigerating compartment 3 is closed is not marked, the door 8 is opened and then closed, the pressure inside the refrigerating compartment 3 is increased, and the cold air inside the refrigerating compartment 3 is caused to flow into the freezing compartment 4A via the refrigerating compartment supply duct 14.
  • the cold air inside the refrigerating compartment 3 also attempts to flow into the freezing compartment 4A via the return duct 20, the cooling chamber 13, and the air blowing port 13a. In this way, if the state in which the refrigerating compartment 3 and the freezing compartment 4A are continuously penetrated, the cold airflow is caused to enter the freezing compartment 4A, and the pressure inside the tank is increased, so that the door 9 or the like that closes the freezing compartment 4A is inadvertently opened.
  • the control device 34 will place the shutter 50 in the closed state before the open door 8 is closed again.
  • the opening of the fan shutter 51 and the induction duct 59 will be closed, thereby blocking the passage of the refrigerating compartment supply duct 14 and the freezing compartment 4A. Therefore, the cold airflow flowing through the refrigerating compartment 3 and the refrigerating compartment supply duct 14 stops at the fan shutter 51 and the induction duct 59.
  • the cold air current flowing through the refrigerating compartment supply duct 14 is depicted in a broken line form.
  • the air supply port 13a of the cooling chamber 13 is closed by the fan shutter 51, thereby blocking the passage of the return air passage 20 and the freezing chamber 4A.
  • the cold air flowing through the refrigerating compartment 3, the return air duct 20, the cooling chamber 13, and the air blowing port 13a is stopped at the fan shutter 51 in the closed state.
  • the cold air current flowing through the return air passage 20 is depicted by a dashed line.
  • step S13 if NO, it is explained that the door 8 is not opened, so it is determined in step S16 whether or not the occlusion device 50 is in the closed state.
  • the shutter device 50 In the case of YES in the step S16, the shutter device 50 is in the closed state. Therefore, in order to cool the refrigerator compartment 3 and the freezer compartment 4A, the shutter 50 is placed in the open state.
  • the occlusion device 50 is in the on state, and therefore there is a possibility that the occlusion device 50 is in the open state for a long time, so it is determined in step S17 that the anti-freeze protection flag (FLAG) is determined. Whether it is placed ON.
  • FLAG anti-freeze protection flag
  • step S11 if it is considered necessary to perform the control for the anti-freeze protection, the anti-freeze protection flag (FLAG) will be turned ON, and if it is considered that the control is not required to be performed, it will be turned OFF. If the anti-freeze protection flag (FLAG) is set to ON, then go to step S19. On the contrary, if the anti-freeze protection flag (FLAG) is not turned ON, it is OFF, then go to step S11.
  • step S19 the ice coating on the shutter device 50 is removed.
  • the control device 34 applies a voltage to the motor housed in the occlusion device 50 in the open state but not shown in the drawing to move the fan damper 51 further in the opening direction.
  • the drive shaft 61 driven by the motor does not continue to rotate, so the motor does not rotate any more, but attempts to release heat.
  • the ice on the shielding device 50 is melted by the heat released by the motor.
  • FIG. 5(A) the drawing on the melt drive shaft 61 does not indicate the ice between the threaded teeth and the screw holes 63 of the fan shutter 51 in the unillustrated thread grooves of the drawings.
  • the shutter 50 is always in the open state, and it is possible to prevent the shutter device 50 from freezing and blocking the switching operation.
  • the length of time during which the voltage is applied to the motor is longer than the length of time during which the voltage is applied to the motor when the shutter device 50 is turned from the off state to the on state.
  • the duration of the voltage applied to the motor is 7 seconds
  • the length of time during which the voltage is applied to the motor in this step is 15 seconds.
  • step S19 After the end of step S19, the process returns to step S10 to perform a normal cooling operation.
  • step S11 of turning the anti-freeze protection flag (FLAG) ON or OFF will be described in detail with reference to FIG.
  • step S101 it is determined by the control device 34 whether the outside air temperature is lower than or equal to the specified temperature and is in the defrosting. Specifically, referring to FIG. 6, it is judged whether or not the outside air temperature measured by the outside air temperature sensor 48 is lower than or equal to a specified temperature, and whether the defrosting heater 33 is heating. Here, it is assumed that the specified temperature is 20 ° C. If it is lower than or equal to this temperature, the defrost cycle will be elongated, which constitutes a condition that the shutter device 50 is easy to freeze.
  • step S101 if it is NO, it indicates that the outside air temperature of the refrigerator 1 is higher than 20 degrees or the defrosting process is being performed, or both. Therefore, there is a possibility that the shielding device 50 is covered with a large amount of ice, and the possibility of blocking the switching operation is small. Therefore, the anti-freezing protection determination is ended, and the process proceeds to step S12 shown in FIG. At this time, the anti-freeze protection flag (FLAG) is still in the OFF state, and therefore, the control device 34 does not perform the step S19 for removing the ice covering the shutter device 50.
  • FLAG the anti-freeze protection flag
  • step S101 if YES, it means that the outside air temperature of the refrigerator 1 measured by the outside air temperature sensor 48 is lower than or equal to 20 degrees, and the defrosting process is not performed.
  • the control device 34 performs the following steps. Specifically, in step S102, the control device 34 turns on the count timer A to start timing. That is, the control device 34 starts accumulating the time when the outside air temperature of the refrigerator 1 measured by the outside air temperature sensor 48 is lower than or equal to 20 degrees, and the defrosting process is not performed.
  • the process goes to step S107.
  • the anti-freeze protection flag FLAG
  • the anti-freeze protection flag FLAG is turned ON by the control device 34.
  • the operation of removing the ice coating on the occlusion device 50 is performed in the step S19 shown in FIG.
  • step S103 it means that the time in which the defrosting is not performed does not exceed or does not last for 24 hours in the case where the air temperature outside the tank is low, so according to the instruction of the control device 34, the flow proceeds to step S104. .
  • step S104 the control device 34 confirms whether or not the temperature inside the refrigerator compartment 3 has not reached the ON point, and whether the temperature inside the refrigerator compartment 4A is higher than or equal to the ON point.
  • the ON point of the refrigerating compartment 3 is the first temperature
  • the ON point of the freezing compartment 4A is the second temperature.
  • step S104 if YES, referring to Fig. 2, the control device 34 closes the refrigerating compartment shutter 25, stops supplying cold air to the refrigerating compartment 3, and places the shuttering device 50 in an open state, thereby supplying cold air to the freezing compartment 4A. That is, the cold air cooled by the cooling chamber 13 is supplied only to the freezing compartment 4A via the opening of the shielding device 50. In this state, the cold air circulates only in the freezing compartment 4A and the cooling compartment 13, and this situation makes it easier to freeze the shutter 50 as compared with when the cold air is supplied to both the refrigerating compartment 3 and the freezing compartment 4A. On the contrary, in step S104, if it is NO, it ends.
  • step S105 the count timer B is started to start counting, and the state duration of step S104 is accumulated.
  • step S106 it is determined whether or not the time accumulated by the counting timer B has passed the second time, that is, one hour. In step S106, if YES, it means that the accumulated time of the counting timer B lasts for one hour, and there is a possibility that the occlusion device 50 is frozen. Therefore, according to the instruction of the control device 34, the process goes to step S107 to protect against freezing.
  • the flag (FLAG) is set to ON. In this manner, in step S31 to be described later, a heating operation is performed in accordance with an instruction from the control device 34 to remove the ice coating on the shutter device 50.
  • step S106 it means that the time accumulated by the counting timer B has not elapsed for one hour, so the control device 34 ends the series of steps of determining the anti-freeze protection flag (FLAG), and the anti-freeze protection flag (FLAG) ) Always put OFF.
  • control methods for preventing each door from being inadvertently opened will be described below with reference to FIGS. 10 and 11. Said here The control method is basically the same as the control method described with reference to FIGS. 7 and 8, except that the closing operation of the shutter is performed to prevent the door from being inadvertently opened. Therefore, the following description will be made around this difference, and the description of the same portions as those of the control method shown in Fig. 7 will be omitted.
  • step S20 of each parameter determination step S21 of anti-freezing protection, determination step S22 of defrosting or not, and control in switch determination step S23 of door 3 of refrigerating compartment 3 are explained with reference to Fig. 7
  • the control in step S10, step S11, step S12, and step S13 is the same.
  • step S24 it is judged by the control device 34 whether or not the refrigerating compartment shutter 25 shown in Fig. 11 is in an open state. In step S24, if NO, that is, the refrigerating compartment shutter 25 is in the closed state, the control unit 34 is instructed to proceed to step S26 and step S27.
  • the control of steps S26 and S27 is the same as the control in steps S14 and S15.
  • the refrigerating compartment shutter 25 is in the open state, so that the flow goes to the step S25, and the refrigerating compartment shutter 25 shown in Fig. 11 is placed in the blocking state by the control device 34.
  • the passage of the refrigerating compartment supply duct 14 and the freezing compartment 4A is blocked. Therefore, even if the user closes the door 8 of the opened refrigerating compartment 3, causing the pressure inside the refrigerating compartment 3 to rise, the cold air is not supplied to the air duct 14 via the refrigerating compartment, and flows into the freezing compartment 4A from the refrigerating compartment 3 because the refrigerating compartment
  • the shutter 25 is in a closed state.
  • the shutter device 50 since the shutter device 50 has been placed in the closed state in steps S26 and S27, the cold airflow that attempts to flow into the freezer compartment 4A via the return air duct 20 and the cooling chamber 13 stops at the shutter device 50.
  • the refrigerating compartment shutter 25 is used to prevent the cold airflow from flowing into the freezing compartment 4A from the refrigerating compartment 3 when the door 8 of the refrigerating compartment 3 is closed. Thereby, a remarkable effect is obtained in preventing the door 9 that closes the freezing compartment 4A from being inadvertently opened as the switching operation of the door 8 is inadvertently opened.
  • the step S28 of determining the switching state of the blocking device 50 and the step S30 of causing the blocking device 50 to perform the opening operation are the same as the steps S16 and S18. Further, the step S29 of determining whether or not the freeze protection flag (FLAG) is turned ON and the step S31 of causing the shutter device 50 to perform the opening operation are the same as the steps S17 and S19.
  • FLAG freeze protection flag
  • the above description is directed to a control method for preventing the door 9 of the freezing compartment 4A from being inadvertently opened when the door 8 of the refrigerating compartment 3 is opened and closed, but the control method is also applicable to other methods. door.
  • the control device 34 may detect the opening operation of the door 9 or the like of the freezing compartment 4A, and the shuttering device 50 and the refrigerating compartment shutter 25 may be placed in a closed state, thereby preventing the door 8 from being inadvertently opened as the door 9 is closed.
  • step S24 and step S25 shown in Fig. 10 the vegetable compartment flap 26 attached to the vegetable compartment supply duct 16 is closed. In this way, it is possible to prevent the door 12 closing the vegetable compartment 7 from being inadvertently opened as the door 8 is switched.

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Abstract

提供了一种冰箱(1),其包括:从冷却室(13)向冷藏室(3)及冷冻室(4A)供应冷气的通道即开口部(13a);封堵开口部(13a)的遮挡装置(50);检测冷藏室门(8)开关状况的检测设备;控制遮挡装置(50)的控制装置(34),当用户打开冷藏室门(8)时,控制装置(34)将遮挡装置(50)置于关闭状态,从而封堵开口部(13a)。因此即使将冷藏室(3)的门(8)打开后关闭,也可以抑制冷藏室(3)内部的冷气随着这些动作流入冷冻室(4A),从而可以防止冷冻室(4A)的门(9)被不经意打开。

Description

一种冰箱
本申请要求了申请日为2016年07月12日,申请号为201610547818.4,发明名称为“一种冰箱”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种冰箱,特别涉及一种包含多个储藏室并经由风道相互贯通的冰箱。
背景技术
普通的冰箱包含多个用于冷却食品等被冷藏物的储藏室,通过蒸发器即冷却器将冷却室内冷气冷却后,经由送风风道,将冷气从冷却室吹送到各储藏室,从而确保各储藏室维持指定的箱内温度。此外,将各储藏室冷却后的冷气经由回流风道回流到冷却室。
专利文献日本特开2009-250476号公报中记载有一例这种冰箱。图12是该文献所述冰箱100的正面图。所述冰箱100具有顶层冷藏室120及冷冻室130,经附图未标示冷却器冷却后的冷气经由各送风风道吹送到冷藏室120及冷冻室130。
冰箱100中,将经冷却器冷却后的冷气吹送到冷藏室120的冷气供应风道101、102、103、104上分别设有入口挡板105、106、107、108。此外,从储藏室向冷却器区返回冷气的冷气回流风道109、110、111上分别设有出口挡板113、114、115。此外,从冷冻室130开始的附图未标示冷气回流风道上设有出口挡板116。此外,除霜过程中,全部或者部分入口挡板105、106、107、108及出口挡板113、114、115、116关闭。
但是,所述结构的冰箱100存在一些隐患,例如,在使用冰箱100的状况下,关闭各储藏室的门有可能被不经意的打开。
具体而言,在冷却冷藏室120及冷冻室130期间,为使冷气得到循环,各挡板处于敞开状态。因此,冷藏室120与冷冻室130经由冷气供应风道101、102、103、104及冷气回流风道109、110、111相互贯通。然而,这存在一些隐患。例如,当关闭冷藏室120的附图未标示门被打开后,被顺势用力关闭,可能导致冷藏室120内部的冷气经由冷气供应风道101、102、103、104及冷气回流风道109、110、111流入冷冻室130。然后,使冷冻室130的内部压力增大,不经用户操作,直接将关闭冷冻室130的门顶开。这样以来,用户需要手动将打开的门关闭,很繁琐。而且,冷冻室内的冷气还会从打开的门跑到外面,增加电力消耗。
发明内容
为至少解决上述技术问题之一,本发明的目的在于提供一种冰箱,其可以在用户进行门的开关操作时,防止其他门被不经意的打开。
为实现上述发明目的之一,本发明一实施方式提供了一种冰箱,所述冰箱包括:由第1储藏室及第2储藏室构成的冰箱主体;关闭所述第1储藏室开口的第1门;关闭所述第2储藏室开口的第2门;对供应给所述第1储藏室及所述第2储藏室的冷气进行冷却的冷却器;存放所述冷却器的冷却室;从所述冷却室向所述第1储藏室及所述第2储藏室供应所述冷气的通道开口部;封堵所述开口部的遮挡装置;从所述冷却室向所述第1储藏室供应所述冷气的通道即供应风道;从所述第1储藏室向所述冷却室回流所述冷气的通道即回流风道;检测所述第1门开关状况的检测设备;根据所述检测设备的输出,控制所述遮挡装置的控制装置;所述控制装置根据显示所述第1门被开启状态的所述检测设备的输出,利用所述遮挡装置封堵所述开口部。
作为本发明一实施方式的进一步改进,所述冰箱还包括用于调节流经所述供应风道的所述冷气量的风道开关,所述控制装置根据显示所述第1门被开启状态的所述检测设备的输出,利用所述风道开关阻断所述供应风道。
作为本发明一实施方式的进一步改进,所述控制装置对未进行所述冷却器除霜操作的时间进行累计,当所述累计时间超过预定第1时间时,命令所述遮挡装置执行开启动作。
作为本发明一实施方式的进一步改进,所述控制装置在所述第1储藏室的箱内温度高于或等于第1温度时,将所述冷气吹送到所述第1储藏室,同时在所述第2储藏室的箱内温度高于或等于第2温度时,将所述冷气吹送到所述第2储藏室,进一步而言,所述控制装置对所述第1储藏室的箱内温度未达到所述第1温度,且所述第2储藏室的箱内温度高于或等于所述第2温度的时间进行累计,当所述累计时间高于或等于预计的第2时间时,命令所述遮挡装置执行开启动作。
作为本发明一实施方式的进一步改进,所述遮挡装置包括:用于遮挡设在所述开口部风机处的风机挡板;与所述风机挡板螺纹连接的驱动轴;驱动所述驱动轴旋转的电机;所述控制装置通过对处于开启状态的所述遮挡装置的所述电机施加电压,驱动所述风机挡板向开启方向移动。
与现有技术相比,本发明具有以下有益技术效果:
(1)可以在第1门打开时,利用遮挡装置遮挡冷却室开口,从而封堵经由回流风道连接第1储藏室与第2储藏室的风道。这样以来,即使用户关闭第1门,导致有压力作用于第1储藏室,从第1储藏室出来,经由回流风道流入第2储藏室的冷气流也会被呈关闭状态的遮挡装置拦截。因此,可以防止随着第1门的关闭,有大量的冷气流入第2储藏室,从而可以防止关闭第2储藏室的第2门被不经意的打开。
(2)即使用户关闭第1门,从第1储藏室出来,经由供应风道流入第2储藏室的冷气流也会被装在供应风道途中呈断开状态的风道开关拦截。因此,可以防止有大量的冷气流入第2储藏室,从而可以防止关闭第2储藏室的第2门被不经意的打开。
(3)当不执行除霜操作的时间达到或超过一定时间时,会命令遮挡装置执行开启动作,将覆冰去除。因此,可以防止有覆冰阻碍遮挡装置的动作。
(4)当第1储藏室的箱内温度未达到所述第1温度,且第2储藏室的箱内温度高于或等于所述第2温度时,仅向第2储藏室供应冷气,容易导致含有冷气的水分附着在遮挡装置上。当这种状况的维持时间超过预定的第2时间时,命令遮挡装置执行开启动作,可以去除遮挡装置上的覆冰,从而防止有覆冰阻碍遮挡装置的开关动作。
(3)对处于开启状态的遮挡装置的电机供应电流,可以使所述电机释放热量,从而使遮挡装置上的覆冰被释放的热量融化后去除。
附图说明
【图1】根据本发明实施例示出的一种冰箱的正面外观图;
【图2】根据本发明实施例示出的一种冰箱的概略结构的侧面剖视图;
【图3】根据本发明实施例示出的一种冰箱的供应风道的正面示意图;
【图4】根据本发明实施例示出的一种冰箱的冷却室附近结构的侧面剖视图;
【图5】根据本发明实施例示出的一种冰箱的遮挡装置,其中(A)为分解斜视图,(B)为斜视图;
【图6】根据本发明实施例示出的一种冰箱的连接结构框图;
【图7】根据本发明实施例示出的一种冰箱的示意图及一种冰箱控制方法的流程图;
【图8】根据本发明实施例示出的一种冰箱的示意图图及一种冰箱控制方法的流程图;
【图9】根据本发明实施例示出的一种冰箱的冷却室附近冷气流的侧面剖视图;
【图10】根据本发明实施例示出的一种冰箱的示意图及另一种冰箱控制方法的流程图;
【图11】根据本发明实施例示出的一种冰箱的冷却室附近冷气流向的侧面剖视图;
【图12】根据背景技术示出的一种冰箱的正面图。
具体实施方式
下面根据附图,对本发明实施例中提供的冰箱1进行详细说明。
图1是根据本发明实施例示出的冰箱1的概略结构的正面外观图。如图1所示,本实施例中提供的冰箱1具有作为冰箱主体的绝热箱体2,在该绝热箱体2的内部形成储藏食品等的储藏室。所述储藏室包括:最顶层的冷藏室3;其下层左侧的制冰室4;其下层右侧的顶层冷冻室5;再下一层的底层冷冻室6;然后最下层的蔬菜室7。另外,制冰室4、顶层冷冻室5及底层冷冻室6均为冷冻温度范围的收纳室,下述说明中有时将其统称为冷冻室4A。
绝热箱体2的前面有开口,与冷藏室3等对应的所述开口设有可以自由开关各种门等。门8a与8b分两块封堵冷藏室3的前面,门8a的左上方与左下方及门8b的右上方与右下方搭在绝热箱体2上,可自由旋转。此外,门9至门12与各个收纳容器成一体搭在绝热箱体2上,可以在冰箱1的前方自由拉出。其中,例如,用于关闭第1储藏室即冷藏室3的门8对应为第1门,用于关闭第2储藏室即冷冻室4A的门9等对应为第2门。
此外,绝热箱体2上设有开关传感器30,用于检测所述门8的开关状况。其中,针对门8a、8b,设有两个开关传感器30。所述开关传感器30可以采用在门8a、8b被关闭时感知压力的所谓开关式传感器,也可以采用感知门8a、8b上所设磁性体发出的磁力强度的磁力传感器。此外,设在冰箱1上的其他门9、10、11、12也可以设置开关传感器30。
图2是示出冰箱1的概略结构的侧面剖视图。作为冰箱1主体的绝热箱体2包括:前面设有开口的钢板材质的外箱2a;设在外箱2a内,与之留有空隙,且前面设有开口的合成树脂材质的内箱2b;发泡填充在外箱2a与内箱2b之间的聚氨酯泡沫材质的绝热材料2c;此外,门8至门12也同样采用绝热箱体2的绝热结构。
冷藏室3与位于其下层的冷冻室4A之间通过绝热隔壁28隔开。冷冻室4A内部的制冰室4与顶层冷冻室5之间通过附图未标示隔壁隔开。此外,制冰室4及顶层冷冻室5与设在其下层的底层冷冻室6之间相互贯通,冷气可以自由流动。此外,冷冻室4A与蔬菜室7之间通过绝热隔壁29分开。
冷藏室3的背面通过合成树脂材质的分隔体45分开,形成向冷藏室3供应冷气的供应风道即冷藏室供应风道1。冷藏室供应风道14上有向冷藏室3吹送冷气的出风口17。此外,冷藏室供应风道14上设有风道开关即冷藏室挡板25。冷藏室挡板25是由电机等驱动的可自由开关的挡板,用于控制向冷藏室3供应的冷气流量,以维持冷藏室3内部的合适温度。
冷冻室4A的深度侧设有将经冷却器32冷却后的冷气吹送到冷冻室4A的冷冻室供应风道15。冷冻室供应风道15的更深度侧设有冷却室13,其内部配有冷却器32,是用于冷却箱内循环冷气的蒸发器。
冷却器32通过制冷剂管道连接在压缩机31、附图未标示散热器、附图未标示毛细管膨 胀阀上,构成蒸汽压缩式的冷冻循环回路。
此外,冰箱1还包括用于检测冷藏室3内部温度的冷藏室温度传感器42、用于检测冷冻室4A内部温度的冷冻室温度传感器43及其他附图未标示各种传感器类。
进一步而言,在本发明中,冰箱1还包括附图未标示控制装置34,所述控制装置34根据传感器类的输入值执行指定的运算处理,控制压缩机31、风机35、遮挡装置50、冷藏室挡板25等各组成设备。
图3是示出冰箱1的供应风道的概略结构的正面示意图。向冷藏室3供应冷气的冷藏室供应风道14在冷藏室3的中心位置向最顶部吹送冷气,然后冷气从两侧下降。这样,可以有效的向整个冷藏室3内部供应冷气。
冰箱1具有从冷藏室3向冷却室13吹送空气的回流风道20。冷藏室3的下方有连接回流风道20的开口即回流口22。冷藏室3内的空气通过回流口22流向回流风道20,并流向冷却器32的下方。
回流风道20的前方设有将经冷却器32冷却后的空气吹送到蔬菜室7的蔬菜室供应风道16。蔬菜室供应风道16从冷冻室供应风道15处向上分支,经由冷冻室4A上方的绝热隔壁28内部转向下方,通到冷冻室4A的深处。然后,贯穿绝热隔壁29,与蔬菜室7相连。蔬菜室7设有从蔬菜室供应风道16吹出冷气的开口即出风口19。
蔬菜室供应风道16设有控制向蔬菜室7供应冷气流量的蔬菜室挡板26。这样,可以与冷藏室3的冷却分开,独立进行蔬菜室7的冷却,可以将蔬菜室7的温度控制在合适温度。
蔬菜室7设有回流口24,蔬菜室7内的空气从回流口24出来,经由蔬菜室回流风道21及回流口13b,向冷却室13的下方流动。
图4是示出冰箱1的冷却室13附近结构的侧面剖视图。冷却室13设在冷冻室供应风道15的深度侧。冷却室13与冷冻室4A之间通过合成树脂材质的分隔体46隔开。即,冷却室13是夹在内箱2b与分隔体46之间的一个空间。
设在冷却室13前方的冷冻室供应风道15是夹在分隔体46与其前方合成树脂材质的前挡47之间形成的一个空间,作为风道,吹送经冷却器32冷却后的冷气。前挡47设有向冷冻室4A吹送冷气的开口即出风口18。
底层冷冻室6的下方背面设有从冷冻室4A向冷却室13返回空气的回流口23。然后,冷却室13的下方设有回流口13b,与所述回流口23相连,将从各储藏室出来的回流冷气吸入冷却室13内部。
冷却器32的下方设有除霜加热器33,用于融化和去除附着在冷却器32上的霜。除霜加热器33为电阻加热式加热器。
分隔体46的上方设有送风口13a,是连接各储藏室的开口部。即,送风口13a是用于吹送经冷却器32冷却后的冷气的开口,通过它,冷却室13、冷藏室供应风道14、冷冻室供应风道15及图3所示蔬菜室供应风道16相互贯通。送风口13a配有向冷冻室4A等吹送冷气的风机35。
风机35是一种轴流风机,其具有旋转式叶片37和套管36,后者形成形状接近圆筒形的开口即风洞36a。套管36安装在冷却室13的送风口13a处。套管36上配有风叶37,与风洞36a同轴设置。
冷却室13的送风口13a外侧设有遮挡装置50,其具有用于封堵送风口13a的风机挡板 51。遮挡装置50通过其支撑座53牢牢贴在风机35的套管36上。
风机挡板51面向冷却室13的一面成形加工为凹形。这样,风机挡板51就不会接触到比套管36还要向排风侧突出的风叶37,可以在风洞36a的外侧与支撑座53对接,从而封堵送风口13a。此外,风机挡板51通过驱动轴61的旋转,向前后方向移动。遮挡装置50与风机挡板51之间留有空隙,可以容纳风机挡板51向前后方向移动。
风机挡板51的上方侧面设有开口,并配有封堵所述开口的感应导管59。感应导管59构成了冷藏室供应风道14a的一部分。当风机挡板51不封堵开口部即送风口13a时,位于风机挡板51上方的开口不会被感应导管59封堵。相反,当风机挡板51封堵开口部即送风口13a时,位于风机挡板51上方的开口会被感应导管59封堵。关于感应导管59的详细结构及功能,将参考图5等在后面继续说明。
下面参考图5,对所述冰箱1所采用的遮挡装置50的结构进行说明。图5(A)是将遮挡装置50的各组成构件前后方向分解后示出的斜视图,图5(B)是示出呈开启状态的遮挡装置50的斜视图。
参考图5(A),遮挡装置50包括:覆盖所述风叶37的风机挡板51,及用于将风机挡板51安装在冰箱1主体上的支撑座53。此外,如上所述,感应导管59连接在风机挡板51与冰箱主体侧风道之间。遮挡装置50的主要功能是,通过将所述风叶37置于适当开启或关闭状态,将风叶37旋转产生的冷风供应到所需储藏室。此外,通过将遮挡装置50置于关闭状态,可以抑制在冷却器32的除霜进程中所产生的热气流向冷冻室4A等。
风机挡板51是通过成形加工将合成树脂材料加工成近似盖子形状的产物,其包括接近方形的主面部69,及从主面部69的边缘向后延伸的侧面部70。此外,主面部69的中心附近有圆形通孔即螺丝孔63,螺丝孔63的内侧侧面螺纹开槽形成螺纹槽。进一步而言,将位于风机挡板51上方的侧面部70开口,形成开口部64。开口部64在风机挡板51封堵风机35的状况下,与所述感应导管59的开口部65连接。
风机挡板51的左下角部附近及右上角部附近设有支撑孔62,用于插入后述导杆54。
风机挡板51的作用是,如后文所述,用于实质性的封堵配置于冷却室13的送风口13a处的风叶37。此外,风机挡板51的上方设有开口部64,所以即使风机挡板51将风叶37封堵的状况下,风叶37送出的冷气也会经由开口部64供应到冷藏室3侧。
驱动轴61接近圆筒形状,其部分侧面设有连续的螺旋状凸起即螺纹牙。附图中未标出螺纹牙。这里,在驱动轴61侧面形成的螺纹牙与在风机挡板51的螺丝孔63侧面形成的螺纹槽在使用状况下螺纹连接。此外,驱动轴61的内部装有附图未标示电机,所述电机的驱动力驱使驱动轴61按指定角度旋转。假设驱动轴61顺时针旋转,风机挡板51将离开支撑座53,在风机挡板51与支撑座53之间形成空隙,呈开启状态。这样,附图未标示风叶37送出的冷气会经由所述空隙供应到冷冻室4A。相反,假设驱动轴61逆时针旋转,则风机挡板51的侧面部70会牢牢贴在支撑座53上,不会形成所述空隙,呈关闭状态。这样,附图未标示风叶37送出的冷气不会供应到冷冻室4A中,而是经由所述开口部64及感应导管59,供应到冷藏室3。
支撑座53主要包括:平面视觉呈四方框形的框架部71;支撑中心位置处驱动轴61的轴支撑部72;连接轴支撑部72与框架部71角位的支撑框架60;立设在框架部71左下角及右上角的导杆54。框架部71机械性地支撑整体支撑座53,其角位附近设有多个孔位73。 如图4所示,包括框架部71的遮挡装置50,通过贯穿孔位73的螺丝等固定手段固定在分隔体46上。
导杆54是立设在风机挡板51的支撑孔62的对应位置处的圆柱形构件。各个导杆54插入支撑孔62内通过滑动引导风机挡板51稳定动作。
感应导管59由板状合成树脂构成,位于其下端的开口部65排列在与关闭状态的风机挡板51的开口部64相一致的位置处。这样,感应导管59的开口部65与风机挡板51的开口部64会呈大致相同的形状及大小。此外,感应导管59的后侧开口与图4所示冷藏室供应风道14a相连接。感应导管59起到使风机挡板51的内部空间与连接冷藏室3的风道相互贯通的路径作用。
参考图5(B),在遮挡装置50的开启状态下,驱动轴61的驱动力会驱动风机挡板51向前方移动。这样,风机挡板51的侧面部70后端会与支撑座53拉开距离,在风机挡板51与支撑座53之间形成空隙。此外,在这种状态下,位于风机挡板51上方的开口部64与位于感应导管59下方的开口部65不相通。在这种状态下,当图4所示风叶37旋转送风时,送出的冷气会经由所述空隙供应到图2所示冷冻室4A。
当风机挡板51从开启状态转向关闭状态时,会驱动驱动轴61旋转,例如逆时针旋转。这样,风机挡板51会向后移动,风机挡板51的侧面部70后方端部与支撑座53的前面对接。在这种状态下,如果驱动图4所示风叶37旋转送风,送出的冷气不会供应到图2所示冷冻室4A,而是仅供应到冷藏室3。
这里,位于风机挡板51顶端的开口部64四边向上凸出,形成重叠部66。此外,位于感应导管59底端的开口部65四边向下凸出形成重叠部67。因此,如果将风机挡板51置于关闭状态,风机挡板51的重叠部66与感应导管59的重叠部67将重叠。根据相关结构,当风机挡板51被置于关闭状态时,风机挡板51与感应导管59的接合部气密性增加,可以抑制冷气从所述接合部泄漏。
参考图6,所述冰箱1包括例如由CPU构成的控制装置34,所述控制装置34的输入侧端子与开关传感器30、冷藏室温度传感器42、冷冻室温度传感器43及箱外空气温度传感器48连接。此外,控制装置34的输出侧端子与冷藏室挡板25、蔬菜室挡板26、遮挡装置50、压缩机31及除霜加热器33连接。控制装置34根据与输入侧端子连接的开关传感器30等输入的电信号,控制冷藏室挡板25等,将各储藏室的箱内温度控制在指定的温度范围。此外,控制装置34包括附图未标示的计时器及RAM、ROM等存储装置。所述存储装置存储有:后述时间及温度等参数、后述用于执行控制方法的程序等。
下面再次参考所述各附图,对具有上述结构的冰箱1的工作原理进行说明。
首先,对仅冷却冷藏室3的运转原理进行说明。参考图4,根据控制装置34的指示,运转压缩机31,开启冷藏室挡板25,运转风机35。此时,风机挡板51呈关闭状态。
经冷却器32冷却后的空气依次通过冷却室13的送风口13a、风机35、风机挡板51的内部空间、感应导管59、冷藏室挡板25、冷藏室供应风道14及出风口17,供应到冷藏室3。这样,可以保证储藏在冷藏室3内部的食品等以合适的温度冷却保存。
此后,供应到冷藏室3内部的循环冷气,如图3所示,从回流口22开始,经由回流风道20,回流到冷却室13内部。由此,再次被冷却器32冷却。
这里,控制装置34通过控制冷气供应,以确保冷藏室3的箱内温度在指定的温度范围 内。具体而言,当通过冷藏室温度传感器42测量的冷藏室3的箱内温度高于或等于上限温度即第1温度时,控制装置34会运转压缩机31,并利用风机35将经冷却器32冷却后的冷气吹送到冷藏室3。送出的冷气通过遮挡装置50,经由冷藏室挡板25、冷藏室供应风道14、出风口17,供应到冷藏室3。然后,当冷藏室温度传感器42测量的冷藏室3的箱内温度达到下限温度时,控制装置34会停止向冷藏室3送风。当控制装置34需要停止向冷藏室3送风时,可以使压缩机31停止运转或关闭冷藏室挡板25或者两者都执行。其中,所述上限温度即第1温度亦称作ON点,可以设置在例如+5℃左右。此外,所述下限温度亦称作OFF点,可以设置在例如+2℃。
其次,对仅冷却冷冻室4A的运转原理进行说明。参考图4,根据控制装置34的指示,运转压缩机31,关闭冷藏室挡板25,运转风机35,开启风机挡板51,从而使冷冻室4A得到冷却。具体而言,如图6(A)所示,风机挡板51从支撑座53离开。这样,经冷却器32冷却后的空气由配置在冷却室13的送风口13a处的风机35送出,依次通过冷冻室供应风道15及出风口18,仅供应到冷冻室4A。
其结果,可以确保储藏在冷冻室4A内部的食品等以合适的温度冷却保存。此后,冷冻室4A内部的空气通过位于底层冷冻室6深处的回流口23,经由冷却室13的回流口13b,向冷却室13的内部流动。
这里,控制装置34通过控制冷气供应,以确保冷冻室4A的箱内温度在指定的温度范围内。具体而言,当冷冻室温度传感器43测量的冷藏室3的箱内温度高于或等于上限温度即第2温度时,控制装置34会使冷气吹送到冷冻室4A。具体而言,控制装置34会运转压缩机31,并利用风机35将经冷却器32冷却后的冷气送出。送出的冷气通过遮挡装置50,经由冷冻室供应风道15、出风口18,供应到冷冻室4A。然后,当冷冻室温度传感器43测量的冷冻室4A的箱内温度达到下限温度时,控制装置34停止向冷冻室4A送风。控制装置34需要停止向冷冻室4A送风时,可以使压缩机31停止运转或将遮挡装置50置于关闭状态或者两者都执行。其中,所述上限温度即第2温度亦称ON点,可以设置例如-18℃左右。此外,所述下限温度亦称OFF点,可以设置在例如-22℃。
再其次,对向蔬菜室7供应冷气的工作原理进行说明。根据控制装置34的指示,开启图3所示蔬菜室挡板26,使利用风机35吹送到冷冻室供应风道15的部分空气流入蔬菜室供应风道16,然后从出风口19出来,吹送到蔬菜室7。这样,可以对蔬菜室7内进行冷却。此后,循环于蔬菜室7的冷气从图3所示回流口24返回,依次通过蔬菜室的回流风道21及回流口13b,回流到冷却室13。蔬菜室7的箱内温度也可如上所述控制在指定范围内。
接着,参考图4,对同时冷却冷藏室3与冷冻室4A的工作原理进行说明。在这种情况下,控制装置34会使风机挡板51与支撑座53的距离长度缩短,使其小于仅冷却冷冻室4A时的距离长度。例如,控制装置34会使风机挡板51与支撑座53的距离长度缩短至仅冷却冷冻室4A时的一半左右。然后,控制装置34将冷藏室挡板25置于开启状态。在这种状态下,如果根据控制装置34的指示,利用风叶37将经冷却器32冷却后的冷气送出,送出的部分冷气会从风机挡板51与支撑座53之间的空隙供应到冷冻室4A,而另一部分冷气会经由感应导管59、冷藏室挡板25、冷藏室供应风道14供应到冷藏室3。
再接着,对除霜运转时的工作原理进行说明。冷却工作持续运转时,冷却器32的空气侧传热面上会有霜附着,阻碍传热,导致空气流路堵塞。所以,需要启动除霜运转、去除附 着在冷却器32上的霜。
所述除霜运转中,根据控制装置34的指示,停止压缩机31运转,向除霜加热器33通电,融化附着在冷却器32上的霜。此时,控制装置34会将风机挡板51置于关闭状态,封堵送风口13a,关闭冷藏室挡板25。这样,可以避免被除霜加热器33加热后的冷却室13内空气流向冷藏室供应风道14及冷冻室供应风道15。其结果,可以提高冰箱1的冷却效率。
最后,当冷却器32的除霜工作完成时,根据控制装置34的指示,停止向除霜加热器33通电,启动压缩机31,开启冷冻回路进行冷却。
综上,对根据本实施例提供的冰箱1的基本工作原理进行了说明。
下面根据图7至图11,并结合所述各附图,对防止所述冰箱1上各门被不经意打开的控制原理进行说明。具体而言,根据下面详述的控制原理,参考图1,可以防止关闭冷冻室4A的门9等在用户进行冷藏室3的门8的开关动作时被打开。进一步而言,其中还包括防止因除霜周期变长,导致遮挡装置50冻结的保护机制。
图7是防止门开启动作的控制流程图;图8是判断是否需要执行防止遮挡装置50冻结这一控制的控制流程图;图9是示出执行上述控制时冷气流的侧面剖视图;图10是示出控制门开启动作的另一种控制方法的流程图;图11是示出执行另一种控制方法时冷气流的侧面剖视图。
参考图7的流程图,首先,在步骤S10中,将各参数初始化。即,控制装置34将防冻结保护标记(FLAG)置于OFF,将计数定时器A清零,将计数定时器B清零。
其次,在步骤S11中,由控制装置34判断是否执行遮挡装置50的防冻结保护。这里,将对遮挡装置50的防冻结保护进行说明。参考图4,遮挡装置50是一种风道控制设备,其用于控制经冷却器32冷却后的冷气流通风道,根据控制装置34的指示,通过驱使驱动轴61旋转,执行风机挡板51的开关动作。驱动轴61与风机挡板51螺纹连接。此外,执行所述除霜进程时,风机挡板51呈关闭状态,而在各储藏室执行冷却动作时,多为开启状态。因此,一旦箱外空气温度变低,除霜进程的周期边长,一直处于开启状态的遮挡装置50就有可能冻结,存在难以根据控制装置34的指示执行遮挡装置50开关动作的可能性。本实施例中,会根据箱外空气温度及除霜周期等,判断是否有必要执行控制以防止遮挡装置50冻结。然后,根据需要通过控制遮挡装置50的动作,防止遮挡装置50冻结。步骤S11的详细内容将参考图8在后文叙述。
在步骤S12中,由控制装置34判断是否要对冷却器32进行除霜。如果进行除霜,即在步骤S12中,是YES,则转到步骤S14中,由控制装置34判断遮挡装置50是否处于开启状态。在步骤S14中,如果是NO,则说明遮挡装置50已处于关闭状态,无需再执行关闭动作,因此返回所述步骤S11。相反,如果步骤S14中,是YES,则说明遮挡装置50处于开启状态,因此根据控制装置34的指示,在步骤S15中,将遮挡装置50置于关闭状态。这样以来,参考图4,遮挡装置50的风机挡板51会封堵送风口13a,避免被除霜加热器33释放的热量所加热的冷却室13内部的热气流入冷冻室4A等。
在步骤S12中,如果是NO,则不执行所述除霜进程,转到步骤S13中,由控制装置34判断设在冷藏室3的门8是否处于开启状态。门8是否处于开启状态的判断是由控制装置34根据所述开关传感器30向控制装置34输入的输入信息进行。在步骤S13中,如果是YES,则说明门8处于开启状态,因此转到所述步骤S14及步骤S15,由控制装置34将遮 挡装置50置于关闭状态。这样以来,可以避免此后用户关闭门8时,关闭冷冻室4A的门9等被不经意打开。
下面参考图3及图9,详细讲述相关事项。参考图3,所述冷藏室3与冷冻室4A经由冷藏室供应风道14相互贯通。进一步而言,冷藏室3与冷冻室4A经由回流风道20、冷却室13及送风口13a相互贯通。因此,将关闭冷藏室3的附图未标示门8打开后再关闭时,冷藏室3的箱内压力会增加,导致冷藏室3内部的冷气经由冷藏室供应风道14流入冷冻室4A。同样原理,冷藏室3内部的冷气还会试图经由回流风道20、冷却室13及送风口13a流入冷冻室4A。这样以来,如果继续维持冷藏室3与冷冻室4A相互贯通的状态,会导致冷气流入冷冻室4A,使箱内压力增大,从而使关闭冷冻室4A的门9等被不经意打开。
在本实施例中,参考图9,控制装置34会在打开的门8再度关闭之前,将遮挡装置50置于关闭状态。这样以来,风机挡板51与感应导管59的开口将被关闭,从而阻断了冷藏室供应风道14与冷冻室4A的通道。因此,经由冷藏室3、冷藏室供应风道14流动的冷气流会停在风机挡板51及感应导管59处。这里,以虚线形式描绘了经由冷藏室供应风道14流动的冷气流。此外,冷却室13的送风口13a被风机挡板51关闭,从而阻断了回流风道20与冷冻室4A的通道。因此,经由冷藏室3、回流风道20、冷却室13及送风口13a流动的冷气会停在关闭状态的风机挡板51处。这里,以短划线描绘了经由回流风道20流动的冷气流。基于这种原理,即使用户在打开冷藏室3的门8后顺势用力将其关闭,也可以避免因这些动作使冷藏室3内部的冷气流入冷冻室4A,因此避免了关闭冷冻室4A的门9等被不经意打开。
在步骤S13中,如果是NO,则说明门8未被打开,因此转到步骤S16中判断遮挡装置50是否处于关闭状态。在步骤S16中,如果是YES,则说明遮挡装置50处于关闭状态,因此为了冷却冷藏室3及冷冻室4A,要将遮挡装置50置于开启状态。相反,在步骤S16中,如果是NO,则说明遮挡装置50处于开启状态,因此存在遮挡装置50长时间被处于开启状态的可能性,所以要转到步骤S17中判断防冻结保护标记(FLAG)是否被置于ON。在所述步骤S11中,如果认为有必要执行控制进行防冻结保护,防冻结保护标记(FLAG)会被置于ON,如果认为不需要执行这种控制,会被置于OFF。如果防冻结保护标记(FLAG)被置于ON,则转到步骤S19。相反,如果防冻结保护标记(FLAG)未被置于ON,即为OFF,则转到步骤S11。
在步骤S19中,去除遮挡装置50上的覆冰。具体而言,参考图4,控制装置34会向装在开启状态的遮挡装置50内但附图未标示的电机施加电压,以使风机挡板51进一步向开启方向移动。这样以来,被电机驱动的驱动轴61不会再继续旋转,所以电机也不会再旋转,而是试图释放热量。本实施例中,以电机释放的热量融化遮挡装置50上的覆冰。例如,参考图5(A),融化驱动轴61上附图未标示螺纹牙与风机挡板51的螺丝孔63中附图未标示螺纹槽之间的覆冰。这样以来,即使长时间不执行除霜进程,遮挡装置50一直处于开启状态,也可以避免因遮挡装置50冻结阻碍其开关动作。
此外,本步骤中,向电机施加电压的时间长度相对于将遮挡装置50从关闭状态转至开启状态时向电机施加电压的时间长度更长。举一例而言,将遮挡装置50从关闭状态转至开启状态时,向电机施加电压的时长是7秒,而在本步骤中向电机施加电压的时间长度是15秒。这样,通过较长时间向电机施加电压,可以增加电机释放的热量,从而提高融冰效果。
步骤S19结束后,返回步骤S10,执行正常的冷却动作。
下面参考图8,对将防冻结保护标记(FLAG)置于ON或者OFF的所述步骤S11进行详细说明。
在步骤S101中,由控制装置34判断箱外空气温度是否低于或等于指定温度,且是否处于除霜中。具体而言,参考图6,判断箱外空气温度传感器48测量的箱外空气温度是否低于或等于指定温度,且除霜加热器33是否正在进行加热。这里,假设指定温度为20℃,如果低于或等于这一温度,除霜周期将拉长,构成了所述遮挡装置50易冻结的条件。
在步骤S101中,如果是NO,则说明冰箱1的箱外空气温度高于20度或正在执行除霜进程,或者两者皆是。从而,存在遮挡装置50被大量的冰覆盖,阻碍其开关动作的可能性较小,因此结束防冻结保护判定,转到图7所示步骤S12。此时,防冻结保护标记(FLAG)还处于OFF状态,因此,控制装置34不会执行以去除遮挡装置50上覆冰为目的的步骤S19。
相反,在步骤S101中,如果是YES,则说明箱外空气温度传感器48测量的冰箱1的箱外空气温度低于或等于20度,且未执行除霜进程。从而,存在遮挡装置50被大量冰覆盖的可能性,因此控制装置34执行下述步骤。具体而言,在步骤S102中,控制装置34开启计数定时器A开始计时。即,控制装置34开始累计箱外空气温度传感器48测量的冰箱1箱外空气温度低于或等于20度,且未执行除霜进程的时间。此后,当通过计数定时器A累计的时间达到预定的第1时间,例如历时24小时后,遮挡装置50因长期接触到冷气,存在遮挡装置50被覆冰冻结的可能性,因此转到步骤S107中,由控制装置34将防冻结保护标记(FLAG)置于ON。这样以来,将转到图7所示步骤S19中,执行去除遮挡装置50上覆冰的动作。
相反,在步骤S103中,如果是NO,则说明在箱外空气温度较低的状况下,未进行除霜的时间未超过或者未历时24小时,所以根据控制装置34的指示,转到步骤S104。
在步骤S104中,由控制装置34确认冷藏室3的箱内温度是否未达到ON点,且冷冻室4A的箱内温度是否高于或等于ON点。这里,如上所述,冷藏室3的ON点为第1温度,冷冻室4A的ON点为第2温度。
在步骤S104中,如果是YES,则参考图2,控制装置34关闭冷藏室挡板25,停止向冷藏室3供应冷气,将遮挡装置50置于开启状态,从而向冷冻室4A供应冷气。即,经冷却室13冷却后的冷气经由遮挡装置50的开口部仅供应到冷冻室4A。这种状态下,冷气仅在冷冻室4A与冷却室13循环,与同时向冷藏室3及冷冻室4A双方供应冷气时相比较,此状况更易使遮挡装置50冻结。相反,在步骤S104中,如果是NO,则结束。
在步骤S105中,开启计数定时器B开始计时,累计步骤S104的状态持续时间。
在步骤S106中,判断计数定时器B累计的时间是否历时第2时间即1小时。在步骤S106中,如果是YES,则说明计数定时器B的累计时间历时1小时,存在遮挡装置50被冻结的可能性,因此,根据控制装置34的指示,转到步骤S107,将防冻结保护标记(FLAG)置于ON。这样以来,将在后述的步骤S31中,根据控制装置34的指示,执行加热动作以去除遮挡装置50上的覆冰。相反,在步骤S106中,如果是NO,则说明计数定时器B累计的时间未历时1小时,因此控制装置34结束判断防冻结保护标记(FLAG)的一系列步骤,将防冻结保护标记(FLAG)始终置于OFF。
下面参考图10及图11,对防止各门被不经意打开的其他控制方法进行说明。这里所述 控制方法基本与参考图7及图8说明的控制方法相同,不同点在于,是通过执行挡板的关闭动作,以避免门被不经意打开。所以,下面将围绕这一不同点进行说明,对于与图7所示控制方法相同的部分将省略说明。
参考图10,各参数的初始化步骤S20、防冻结保护的判定步骤S21、除霜中与否的判断步骤S22、及冷藏室3门8的开关判定步骤S23中的控制与参考图7进行说明的步骤S10、步骤S11、步骤S12、及步骤S13中的控制相同。
在步骤S24中,由控制装置34判断图11所示冷藏室挡板25是否处于开启状态。在步骤S24中,如果是NO,即冷藏室挡板25处于关闭状态,则根据控制装置34指示,转到步骤S26及步骤S27。步骤S26及步骤S27的控制与所述步骤S14及步骤S15中的控制相同。
在步骤S24中,如果是NO,则说明冷藏室挡板25处于开启状态,因此转到步骤S25中,由控制装置34将图11所示冷藏室挡板25置于阻断状态。这样以来,冷藏室供应风道14与冷冻室4A的通道被阻断。所以,即使用户将打开的冷藏室3的门8关闭,促使冷藏室3的箱内压力上升,也不会使冷气经由冷藏室供应风道14,从冷藏室3流入冷冻室4A,因为冷藏室挡板25处于关闭状态。此外,如上所述,由于在步骤S26及步骤S27中,已将遮挡装置50置于关闭状态,所以试图经由回流风道20及冷却室13流入冷冻室4A的冷气流会停在遮挡装置50处。这里,在利用遮挡装置50的基础上,再利用冷藏室挡板25,阻止冷气流在关闭冷藏室3的门8时,从冷藏室3流入冷冻室4A。从而,在防止关闭冷冻室4A的门9随着门8的开关动作被不经意打开方面,得到了显著效果。
其中,判断遮挡装置50开关状况的步骤S28及使遮挡装置50执行开启动作的步骤S30与所述步骤S16及步骤S18相同。此外,判断防冻结保护标记(FLAG)是否被置于ON的步骤S29及使遮挡装置50执行开启动作的步骤S31与所述步骤S17及步骤S19相同。
本发明并不限于上述实施例,可以在不脱离本发明主旨的范围内进行其他各种适当变更。
例如,参考图1,虽然上述说明是针对进行冷藏室3的门8的开关动作时,防止冷冻室4A的门9等被不经意打开的控制方法进行的说明,但所述控制方法也适用于其他门。例如,也可以通过控制装置34检测冷冻室4A的门9等的开启动作,将遮挡装置50及冷藏室挡板25置于关闭状态,从而防止门8随着门9的关闭动作被不经意打开。
此外,也可以参考图3,在执行图10所示步骤S24及步骤S25进程的同时,关闭装在蔬菜室供应风道16的蔬菜室挡板26。这样以来,可以避免关闭蔬菜室7的门12随着门8的开关动作被不经意的打开。

Claims (5)

  1. 一种冰箱,其特征在于,所述冰箱包括:
    由第1储藏室及第2储藏室构成的冰箱主体;
    关闭所述第1储藏室开口的第1门;
    关闭所述第2储藏室开口的第2门;
    对供应给所述第1储藏室及所述第2储藏室的冷气进行冷却的冷却器;
    存放所述冷却器的冷却室;
    从所述冷却室向所述第1储藏室及所述第2储藏室供应所述冷气的通道即开口部;
    封堵所述开口部的遮挡装置;
    从所述冷却室向所述第1储藏室供应所述冷气的通道即供应风道;
    从所述第1储藏室向所述冷却室回流所述冷气的通道即回流风道;
    检测所述第1门开关状况的检测设备;
    根据所述检测设备的输出,控制所述遮挡装置的控制装置;
    所述控制装置根据显示所述第1门被开启状态的所述检测设备的输出,利用所述遮挡装置封堵所述开口部。
  2. 根据权利要求1所述的冰箱,其特征在于,所述冰箱还包括用于调节流经所述供应风道的所述冷气量的风道开关,所述控制装置根据显示所述第1门被开启状态的所述检测设备的输出,利用所述风道开关阻断所述供应风道。
  3. 根据权利要求1或者2所述的冰箱,其特征在于,所述控制装置对未进行所述冷却器除霜操作的时间进行累计,当所述累计时间超过预定第1时间时,命令所述遮挡装置执行开启动作。
  4. 根据权利要求1至3任一所述的冰箱,其特征在于,所述控制装置在所述第1储藏室的箱内温度高于或等于第1温度时,将所述冷气吹送到所述第1储藏室,同时在所述第2储藏室的箱内温度高于或等于第2温度时,将所述冷气吹送到所述第2储藏室,进一步而言,所述控制装置对所述第1储藏室的箱内温度未达到所述第1温度,且所述第2储藏室的箱内温度高于或等于所述第2温度的时间进行累计,当所述累计时间高于或等于预计的第2时间时,命令所述遮挡装置执行开启动作。
  5. 根据权利要求1所述的冰箱,其特征在于,所述遮挡装置包括:用于遮挡设在所述开口部风机处的风机挡板;与所述风机挡板螺纹连接的驱动轴;驱动所述驱动轴旋转的电机;所述控制装置通过对处于开启状态的所述遮挡装置的所述电机施加电压,驱动所述风机挡板向开启方向移动。
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CN106247735B (zh) * 2016-07-12 2019-08-13 青岛海尔股份有限公司 一种冰箱
CN106642974B (zh) * 2016-12-27 2019-05-03 青岛海尔股份有限公司 具有风机遮蔽的冰箱的控制方法及冰箱
CN109357463B (zh) * 2018-10-18 2021-06-18 合肥美的电冰箱有限公司 风道组件及包括该风道组件的冰箱
CN111121383A (zh) * 2019-12-30 2020-05-08 青岛海尔电冰箱有限公司 单系统冰箱的化霜控制方法、电子装置及冰箱
CN113915819B (zh) * 2021-01-05 2023-04-07 海信冰箱有限公司 冰箱
CN113915820B (zh) * 2021-01-05 2023-04-04 海信冰箱有限公司 冰箱
CN113915818B (zh) * 2021-01-05 2023-03-31 海信冰箱有限公司 冰箱
CN113915855B (zh) * 2021-01-05 2023-04-18 海信冰箱有限公司 冰箱
CN121720248A (zh) * 2026-02-13 2026-03-24 福建蔚源食品有限公司 一种食品加工用冷冻柜

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