CN107449207B - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
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- CN107449207B CN107449207B CN201611217063.8A CN201611217063A CN107449207B CN 107449207 B CN107449207 B CN 107449207B CN 201611217063 A CN201611217063 A CN 201611217063A CN 107449207 B CN107449207 B CN 107449207B
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- refrigerating
- door
- thawing
- space
- fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a refrigerator capable of quickly thawing frozen stored goods. The refrigerator of the present invention includes: a refrigerating space maintained at a refrigerating temperature; a thawing chamber provided in the refrigerating space and thawing frozen stored goods; a fan for supplying cold air to the thawing chamber; a door that opens and closes the refrigerating space; a door sensor that detects opening and closing of the door; and a control unit that executes a defrosting mode, wherein the control unit causes the fan to continue rotating even if the door sensor detects that the door is opened, by causing the rotation speed of the fan to be higher than the rotation speed of the fan in the case other than the defrosting mode during operation in the defrosting mode.
Description
Technical Field
The present invention relates to a refrigerator.
Background
As a method for thawing frozen stored goods in a refrigerator, there are proposed: a method of raising a set temperature of a storage room in which a stored article is placed, a method of heating a heater placed in the vicinity of a stored article, a method of raising the number of rotations of a fan that sends cold air to a storage room, and the like. The method for increasing the rotating speed of the fan comprises the following steps: an efficient thawing method having both rapidity and energy efficiency of thawing.
Specific embodiments of methods for increasing the number of rotations of a fan are disclosed in patent document 1 and patent document 2. Paragraph 0061 of patent document 1 describes: in the speed defrosting operation, the fan for circulating the cold air in the refrigerating chamber is set at a high speed. On pages 3 to 6 of patent document 2, there is described: when thawing, the rotation speed of the thawing fan is increased.
Patent document
Patent document 1: japanese laid-open patent publication No. 2002-71258
Patent document 2: japanese Kokai publication Sho 62-143187
Disclosure of Invention
Although such a method of increasing the rotation speed of the fan is an effective method, the user desires to more rapidly thaw the frozen stored item. Accordingly, an object of the present invention is to provide a refrigerator capable of quickly thawing frozen stored goods.
The refrigerator of the present invention includes: a refrigerated space maintained at a refrigerated temperature; a thawing chamber provided in the refrigerating space to thaw frozen storage; a fan that delivers cold air to the thawing chamber; a door that opens and closes the refrigerating space; a door sensor that detects opening and closing of the door; and a control unit that executes a defrosting mode, wherein the control unit causes the fan to continue rotating even if the door sensor detects that the door is opened, by causing the rotation speed of the fan to be higher than the rotation speed of the fan in the case other than the defrosting mode during operation in the defrosting mode.
According to the above configuration of the present invention, in the operation in the thawing mode, the control unit increases the rotation speed of the cooling blower fan as compared to the case other than the thawing mode, so that a large amount of cold air having a temperature higher than that of the frozen stored material flows into the thawing chamber, and the frozen stored material is thawed quickly. In addition, in the operation in the thawing mode, even if the door sensor detects that the door is open, the control unit continues to rotate the cooling blower fan, so that the air outside the refrigerator is collected in the cooling space, and the frozen stored goods can be thawed more quickly.
Drawings
Fig. 1 is a longitudinal sectional view of a refrigerator 10 of the present embodiment.
Fig. 2 is a front view of the refrigerator 10 of the present embodiment as viewed from the front.
Fig. 3 is a diagram showing a cooling cycle of the present embodiment.
Fig. 4 is a block diagram centering on the control unit 12 of the present embodiment.
Description of the symbols:
10-refrigerator, 11-cabinet, 12-control section, 13-refrigerating temperature sensor, 14-freezing temperature sensor, 15 a-refrigerating chamber door sensor, 15 b-refrigerating chamber door sensor, 16-panel, 17-in-box lamp, 18-chilling chamber temperature sensor, 19-refrigerating cooler temperature sensor, 20-refrigerating chamber, 21-vegetable chamber, 22-metal tray, 23-chilling chamber, 24-upper container, 24 a-gap, 25 a-refrigerating chamber door, 25 b-refrigerating chamber door, 26-lower container, 27-vegetable chamber door, 28-vegetable container, 29-oxygen reduction chamber, 30-oxygen reduction device, 31-pipeline, 32-blow-out port, 33-suction port, 34-partition plate, 35-introduction path, 36-suction inlet, 37-blowing outlet, 40-freezing chamber, 41-ice-making chamber, 42-ice-making dish, 43-ice-storage container, 44-ice-making chamber door, 45-upper container, 46-lower container, 47-freezing chamber door, 60-cooling chamber for cold storage, 61-cooler for cold storage, 62-fan for cold storage, 63-decompressor for cold storage, 64-compressor, 65-condenser, 66-switching valve, 70-cooling chamber for cold storage, 71-cooler for cold storage, 72-fan for cold storage, 73-decompressor for cold storage, 74-blowing outlet, 75-blowing outlet, 76-partition plate, 77-introduction path, 78-suction inlet.
Detailed Description
Fig. 1 and 2 show a refrigerator 10 according to the present embodiment. The refrigerator 10 is formed by combining an outer case forming the outline of the refrigerator 10 and an inner case forming a plurality of storage compartments, and includes a cabinet 11 in which a heat insulating material is installed between the outer case and the inner case. The refrigerator 10 includes, as a plurality of storage compartments, a refrigerating compartment 20, a vegetable compartment 21 provided below the refrigerating compartment 20, an ice making compartment 41 and a small freezing compartment provided below the vegetable compartment 21 in a left-right direction, and a freezing compartment 40 provided below the ice making compartment 41 and the like. The inside of the refrigerating chamber 20 and the vegetable chamber 21 are: the refrigerating space cooled to a refrigerating temperature (for example, 2 to 3 ℃), the ice making chamber 41 and the like and the freezing chamber 40 have: a freezing space cooled to a freezing temperature (for example, -20 to-18 ℃).
A quench chamber 23 is provided in a lower portion inside the refrigerating compartment 20. The quench chamber 23 is maintained at a lower temperature than other locations within the refrigerated compartment 20. Disposed within the quench chamber 23 is an upper vessel 24 and a lower vessel 26 therebelow. The upper container 24 and the lower container 26 can be pulled out independently of each other. The interior of the upper container 24 functions as a thawing chamber for thawing frozen stored goods. It is preferable that a metal tray 22 made of aluminum or the like is provided inside the upper container 24. Further, in the refrigerating compartment 20, an interior lamp 17 for illuminating the inside of the refrigerating compartment 20 is provided.
As shown in fig. 2, the opening of the refrigerating compartment 20 is closed by the left and right refrigerating compartment doors 25a and 25 b. The left end of the left refrigerating chamber door 25a is attached to the left end of the opening end of the refrigerating chamber 20 by a hinge, and the right end of the right refrigerating chamber door 25b is attached to the right end of the opening end of the refrigerating chamber 20 by a hinge. Therefore, the left and right refrigerating chamber doors 25a, 25b can be opened from the vicinity of the center in the left-right direction of the refrigerator 10. The panel 16 is provided to either one of the left and right refrigerating chamber doors 25a and 25 b. At least a thawing mode button for performing a thawing mode for thawing frozen stored goods is provided on the panel 16. In addition, in addition to the thawing mode key, the panel 16 is provided with: various keys for a user to give instructions to the refrigerator 10, a display portion for displaying the operating conditions of the refrigerator 10, and the like.
The vegetable compartment 21 has fixed rails, not shown, provided on the left and right inner walls thereof. Further, the vegetable room door 27 that closes the opening of the vegetable room 21 is provided with: left and right movement rails, not shown, extending into the vegetable compartment 21. The vegetable compartment door 27 can be moved back and forth by moving the moving guide on the fixed guide, and the vegetable compartment door 27 can be opened by moving the vegetable compartment door 27 forward. A vegetable container 28 for storing vegetables and the like is provided in the vegetable room 21. The vegetable container 28 is supported by the moving guide rail and is pulled out of the refrigerator at the same time as the door opening operation of the vegetable compartment door 27. An oxygen reduction chamber 29 is provided above the vegetable container 28 in the vegetable chamber 21. The oxygen reduction chamber 29 reduces the oxygen concentration inside by an oxygen reduction device 30 provided behind it.
An ice making tray 42 for making ice and an ice storage container 43 disposed below the ice making tray 42 and storing ice falling from the ice making tray 42 are provided in the ice making chamber 41. A pair of left and right support frames extending into the ice making chamber 41 are provided on the ice making chamber door 44 closing the opening of the ice making chamber 41, and these support frames support the ice storage container 43. Accordingly, the ice storage container 43 is pulled out of the refrigerator simultaneously with the door opening operation of the ice making compartment door 44.
A lower container 46 is provided in the freezing chamber 40, and an upper container 45 is provided above the storage space of the lower container 46. The lower container 46 is drawn out of the refrigerator by the same structure as the vegetable container 28 at the same time as the door opening operation of the freezing chamber door 47. The upper container 45 is slidable on unillustrated fixed rails provided on the left and right inner walls of the freezing chamber 40, and can be pulled out.
A cooling compartment 60 for cooling is provided behind the cooling space. The cooling chamber 60 for refrigeration houses: a cooler 61 for refrigerating which generates cold air to be sent to the refrigerating chamber 20 and the vegetable chamber 21, and a blowing fan 62 for refrigerating which circulates the cold air generated by the cooler 61 and sends the cold air to the refrigerating space. Further, a cooling chamber 70 for freezing is provided at a position rearward of the freezing space. The cooling chamber for freezing 70 accommodates: a refrigerating cooler 71 for generating cold air to be sent to the ice making compartment 41 and the like and the freezing compartment 40, and a refrigerating blower fan 72 for circulating the cold air generated by the refrigerating cooler 71.
A cooling cycle for generating cool air is shown in fig. 3. The cooling cycle includes: a compressor 64 that discharges a high-temperature, high-pressure vaporized coolant, a condenser 65 that dissipates heat and liquefies the coolant flowing out of the compressor 64, and a switching valve 66 that switches a flow path of the coolant flowing out of the condenser 65. A refrigerating decompressor 63 and a refrigerating cooler 61 are provided in one of the passages on the downstream side of the switching valve 66. A refrigeration decompressor 73 and a refrigeration cooler 71 are provided in the other flow path on the downstream side of the switching valve 66. A switching valve 66 is operated to generate cold air in the cooler 61 if a flow path of the coolant from the condenser 65 to the pressure reducing device 63 for cold storage is opened; if the flow path of the coolant from the condenser 65 to the refrigeration decompressor 73 is opened, cold air is generated in the refrigeration chiller 71. As the refrigerating decompressor 63 and the freezing decompressor 73, for example, a capillary tube or an expansion valve whose opening degree can be changed is used.
As shown in fig. 1, duct 31 extending upward from refrigerating cooling chamber 60 is provided behind refrigerating compartment 20 so as to form a flow path for cold air generated by refrigerating cooler 61. Cold air outlets 32 for discharging cold air to refrigerating room 20 are provided at a plurality of positions of duct 31. Duct 31 is also provided with a cold air outlet 37 that opens into quench chamber 23. The cold air outlet 37 is provided, for example, at the rear of the upper container 24, and the cold air blown out from the cold air outlet 37 flows directly into the upper container 24.
Further, a cold air inlet 33 is provided at a rear position in refrigerating room 20, from refrigerating room 20 toward refrigerating cooling room 60. In addition, partition 34 that partitions refrigerating room 20 and vegetable room 21 is provided with an introduction passage 35 that communicates refrigerating room 20 and vegetable room 21. Further, a cool air inlet 36 is provided at a lower portion of the rear surface of the vegetable compartment 21, for example, from the vegetable compartment 21 to the refrigerating cooling compartment 60.
When cooling blower fan 62 is rotated, the cold air generated by cooling cooler 61 flows through duct 31 and flows from outlet 32 into the upper portion of refrigerating compartment 20. The cold air flowing into refrigerating room 20 cools refrigerating room 20 and then flows into vegetable room 21 through introduction passage 35. The cold air flowing into vegetable compartment 21 flows into vegetable compartment 28 again to cool vegetable compartment 28, and then flows out of vegetable compartment 28 through the upper opening of vegetable compartment 28. The cold air is then returned from the suction port 36 to the cooling compartment 60 for cooling. Part of the cold air flows into quench chamber 23 from cold air outlet 37. When cold air discharge port 37 is provided at the rear of upper stage container 24, cold air flowing into quench chamber 23 from discharge port 37 flows into upper stage container 24 through gap 24a formed above the rear wall of upper stage container 24, flows into lower stage container 26 to cool the inside of these containers, and then returns to cooling chamber 60 for cold storage from suction port 33. When the stored material of frozen ice is stored in the upper container 24 as the thawing chamber, the stored material is exposed to cold air for refrigerating and cooling, which has a higher temperature than the stored material.
As shown in fig. 1, a flow path for the cold air generated by freezing cooler 71 is formed, and therefore, a cold air outlet 74 from freezing cooling compartment 70 to ice making compartment 41 and the like and a cold air outlet 75 from freezing cooling compartment 70 to freezing compartment 40 are provided. Further, partition 76 that partitions ice making compartment 41 and the like from freezing compartment 40 is provided with an introduction passage 77 that communicates ice making compartment 41 and the like with freezing compartment 40. A cold air intake port 78 is provided in a lower portion of the rear surface of the freezing chamber 40, for example, from the freezing chamber 40 to the freezing cooling chamber 70.
If the freezing blower fan 72 is rotated, part of the cold air generated by the freezing cooler 71 flows into the ice making chamber 41 and the like from the blow-out port 74. The cold air flowing into the ice compartment 41 or the like cools the inside of the ice compartment 41 or the like, and then flows into the freezer compartment 40 through the introduction passage 77. Part of the cold air generated by the freezing cooler 71 flows directly into the freezing chamber 40 from the air outlet 75. The cold air flowing into the freezing chamber 40 flows into the upper container 45 and the lower container 46, cools the inside of these containers, and then flows out of these containers through the upper openings of these containers. The cold air is then returned from suction port 78 to cooling compartment 70 for freezing.
As shown in fig. 4, the refrigerator 10 includes a control section 12. The control unit 12 is electrically connected to, for example, a switching valve 66, a refrigerating blower fan 62, a freezing blower fan 72, a compressor 64, the interior lamp 17, a refrigerating decompressor 63, and the like. Various detection units of refrigerator 10, for example, a refrigerating temperature sensor 13 for measuring the temperature in refrigerating room 20, a chilling room temperature sensor 18 for measuring the temperature in upper container 24 of chilling room 23, a freezing temperature sensor 14 for measuring the temperature in freezing room 40, refrigerating room door sensors 15a and 15b for detecting the opening and closing of refrigerating room doors 25a and 25b, a refrigerating cooler temperature sensor 19 for measuring the temperature of refrigerating cooler 61, and panel 16 are electrically connected to control unit 12. The control section 12 controls each section of the electrical connection based on the detection results obtained by these detection sections. In addition to these components, various components may be electrically connected to the control unit 12 as necessary.
The control unit 12 alternately cools the refrigerating space and the freezing space. When cooling the refrigerating space, the control unit 12 operates the switching valve 66 to cause the coolant to flow to the refrigerating cooler 61 to generate cold air, and rotates the refrigerating air blowing fan 62 to send the cold air generated by the refrigerating cooler 61 to the refrigerating space. The cooling of the refrigerating space performed in this manner is referred to as refrigerating cooling. When cooling the freezing space, the control unit 12 operates the switching valve 66 to supply the coolant to the freezing cooler 71 to generate cold air, and rotates the freezing blower fan 72 to supply the cold air generated by the freezing cooler 71 to the freezing space. The cooling of the freezing space performed in this manner is referred to as freezing cooling. The control unit 12 performs switching between the freezing cooling and the refrigerating cooling when the switching condition is satisfied. The switching condition is, for example, that the temperature of the space cooled at that time is equal to or lower than a predetermined temperature, the temperature of the space not cooled at that time is equal to or higher than a predetermined temperature, or the cooling of the space cooled at that time is continued for a predetermined time.
In the refrigerator 10, if the user puts the frozen stored material into the upper container 24 of the chill chamber 23 and presses the thawing mode button of the panel 16, the control unit 12 starts the operation in the thawing mode. In the defrosting mode, the control unit 12 rotates the cooling blower fan 62 regardless of whether the cooling mode is freezing or refrigerating. The control unit 12 sets the rotational speed of the cooling blower fan 62 to be higher in the defrosting mode than in the cooling mode other than the defrosting mode. The difference between the rotational speed (rpm) of the blower fan 62 for cold storage in the defrosting mode and the rotational speed in cold storage cooling in the case other than the defrosting mode is, for example, 5% or more and 15% or less of the rotational speed in cold storage cooling in the case other than the defrosting mode. In this way, the control unit 12 increases the number of rotations of the cooling blower fan 62, thereby increasing the amount of cold air to be sent into the upper container 24 of the chilling chamber 23, which is a thawing chamber.
Preferably, the control unit 12 sets the rotation speed of the air blowing fan 62 for cold storage during the freezing cooling to be higher than the rotation speed of the air blowing fan 62 for cold storage during the cold storage cooling in the defrosting mode. For example, in the defrosting mode and in the refrigerating cooling, the control unit 12 sets the rotational speed of the refrigerating blower fan 62 to 5% or more and 10% or less of the rotational speed in the refrigerating cooling when the mode is other than the defrosting mode, and accordingly sets the rotational speed to be higher than the rotational speed in the refrigerating cooling when the mode is other than the defrosting mode. Further, in the defrosting mode and the freezing mode, the control unit 12 sets the rotational speed of the cooling blower fan 62 to 10% or more and 15% or less of the rotational speed in the cooling mode other than the defrosting mode, and accordingly, sets the rotational speed to be higher than the rotational speed in the cooling mode other than the defrosting mode. Specific examples are given: the control unit 12 sets the rotational speed of the cooling blower fan 62 to 1700rpm in the thawing mode and during freezing, 1600rpm in the thawing mode and during cooling, and 1500rpm in cooling other than the thawing mode. Thus, the rotational speed of the cooling blower fan 62 is gradually reduced in the defrosting mode and during the freezing cooling, in the defrosting mode and during the cooling, and in the cooling in the other cases than the defrosting mode. However, the control unit 12 may set the rotational speed of the cooling blower fan 62 in the defrosting mode and during the freezing cooling to be the same as the rotational speed in the defrosting mode and during the cooling in the cold storage.
The control unit 12 may perform one or more of the following additional controls 1 to 3 in addition to increasing the rotation speed of the cooling blower fan 62 in the defrosting mode.
The additional control 1 is control in which the control unit 12 reduces the amount of coolant flowing into the cooler 61 for cold storage. Examples of the method for reducing the amount of the coolant include: a method of reducing the operating frequency of the compressor 64, and a method of reducing the amount of coolant by the refrigeration decompressor 63. When the operating frequency of the compressor 64 is reduced, for example, the operating frequency is reduced to about 2/3 of the operating frequency when the defrosting mode is not performed. Further, examples of the method of reducing the amount of the coolant by the refrigerating decompressor 63 include: a method of providing an expansion valve as the refrigerating decompressor 63 and reducing the opening degree of the expansion valve, and a method of providing a plurality of capillaries having different diameters in parallel as the refrigerating decompressor 63 and flowing a coolant into the capillaries having smaller diameters. If the amount of the coolant flowing into the refrigerating cooler 61 is reduced in this way, the temperature of the refrigerating cooler 61 increases, and the temperature of the cold air circulating in the refrigerating space increases.
The additional control 2 is: the control unit 12 controls to increase the set temperature in the upper tank 24 of the chill chamber 23 as compared with the set temperature in the cold storage cooling in the case other than the defrosting mode. If the set temperature in the upper tank 24 of the quench chamber 23 cannot be directly controlled, the control unit 12 indirectly increases the set temperature in the upper tank 24 of the quench chamber 23 by increasing the set temperature in another position in the refrigerator compartment 20.
The additional control 3 is: the control unit 12 controls to lower the set temperature of the freezing space, which is a space other than the space where the thawing chamber (in the upper vessel 24 of the chilling chamber 23) is provided. In this control, it is preferable to lower the set temperature of the freezing space to 1 ℃ or higher. An example is given: when the set temperature of the freezing space is set to-20 to-18 ℃ in the time other than the thawing mode, the control unit 12 sets the set temperature of the freezing space to-23 to-21 ℃ in the time of additional control 3. If the set temperature of the freezing space is lowered, the control unit 12 performs control so that it takes a longer time to cool the freezing space than to cool the refrigerating space.
In the above thawing mode, even if the refrigerating compartment door sensors 15a, 15b detect: the refrigerating chamber door 25a or 25b, which is a door of a refrigerating chamber in which the thawing chamber is provided, is opened, and the control unit 12 also continues to rotate the refrigerating blower fan 62. Thereby, the air outside the refrigerator 10 is collected into the refrigerating space. Here, it is preferable that the control section 12 does not decrease the rotation speed of the cooling blower fan 62 even if the cooling chamber door sensors 15a, 15b detect that the cooling chamber door 25a or 25b is opened.
In addition, when performing any one or more of the additional controls 1 to 3, the control unit 12 preferably continues these controls even if the cooling chamber door sensors 15a and 15b detect that the cooling chamber door 25a or 25b is open. Further, the control unit 12 is preferably configured to switch between the freezing cooling and the refrigerating cooling when the switching condition is satisfied even during the operation in the defrosting mode.
In the above thawing mode, when the refrigerating chamber door sensors 15a and 15b detect that the refrigerating chamber door 25a or 25b is opened, the control unit 12 may notify the user that the operation in the thawing mode is being performed using the in-tank lamp 17. For example, in the case where the refrigerating chamber door 25a or 25b is opened in the defrosting mode and in the case where the refrigerating chamber door 25a or 25b is opened when the defrosting mode is not in use, the control section 12 performs at least either control for changing the illuminance of the in-tank lamp 17 or control for changing the color of the in-tank lamp 17, thereby notifying the user who has opened the refrigerating chamber door 25a or 25b that the operation is being performed in the defrosting mode. In addition to the interior lamp 17 in the refrigerating compartment 20, a thawing compartment interior lamp may be provided at any position in the thawing compartment, and the control unit 12 may turn on the thawing compartment interior lamp only when the refrigerating compartment door sensors 15a and 15b detect that the refrigerating compartment door 25a or 25b is opened in the thawing mode.
In the present embodiment, the control unit 12 preferably stops the rotation of the cooling blower fan 62 when the interruption condition is satisfied during the operation in the defrosting mode. The following interrupt conditions 1 to 3 can be mentioned as interrupt conditions that can be used in the present embodiment.
The interrupt condition 1 is that the refrigerating chamber door sensors 15a, 15b detect that both the refrigerating chamber door 25a and the refrigerating chamber door 25b are open. In this case, even if the refrigerating compartment door sensor 15a or 15b detects that either the refrigerating compartment door 25a or 25b is opened, the control section 12 continues to rotate the cooling blower fan 62. When the cooling chamber door sensor 15a and the cooling chamber door sensor 15b detect that both the cooling chamber door 25a and the cooling chamber door 25b are opened, the control unit 12 stops the cooling blower fan 62.
The interrupt condition 2 is that the refrigerating chamber door sensor 15a or the refrigerating chamber door sensor 15b continuously detects that either the refrigerating chamber door 25a or the refrigerating chamber door 25b is opened for a predetermined time or more, or that the refrigerating chamber door sensor 15a and the refrigerating chamber door sensor 15b continuously detects that both the refrigerating chamber door 25a and the refrigerating chamber door 25b are opened for a predetermined time or more. In addition, in the case of the refrigerator having only one refrigerating chamber door, when the opening of the refrigerating chamber door is continuously detected by the refrigerating chamber door sensor for a predetermined time or more, the control section 12 determines that the interrupt condition is satisfied. The predetermined time is a predetermined time, and is, for example, any time between 8 seconds and 12 seconds.
The interrupt condition 3 is that the temperature measured by the cooler temperature sensor for cold storage 19 is equal to or higher than a predetermined temperature. The predetermined temperature is a preset temperature.
In the present embodiment, only one of the interruption conditions 1 to 3 may be set as the interruption condition for stopping the rotation of the air blowing fan 62 for cooling. In addition, 2 or more interrupt conditions out of the interrupt conditions 1 to 3 may be set as interrupt conditions for stopping the rotation of the air blowing fan 62 for cold storage. For example, in the present embodiment, the 2 of the interruption conditions 1 and 2 may be the interruption conditions under which the rotation of the cooling blower fan 62 should be stopped (that is, the interruption conditions may be set when the cooling chamber door sensors 15a and 15b detect that both the cooling chamber door 25a and the cooling chamber door 25b are open, and when the cooling chamber door sensor 15a or the cooling chamber door sensor 15b continuously detects that either the cooling chamber door 25a or the cooling chamber door 25b is open for a predetermined time or longer).
After the interruption condition is satisfied and the rotation of the air blowing fan 62 for cooling is stopped, the control unit 12 preferably resumes the rotation of the air blowing fan 62 for cooling and returns the rotation speed thereof to that before the interruption when the interruption condition is not satisfied. The case where the interrupt condition is not satisfied means that: in the case of the interrupt condition 1, when either one of the refrigerating chamber door 25a or the refrigerating chamber door 25b is closed is detected by the refrigerating chamber door sensor 15a or the refrigerating chamber door sensor 15 b; in the case of the interrupt condition 2, the refrigerating chamber door sensor 15a or 15b detects when the refrigerating chamber door 25a or 25b opened for a prescribed time or longer is closed; in the case of interrupt condition 3, the measured temperature is lower than the predetermined temperature.
Among them, 1 or more of the interrupt conditions 1 to 3 can be regarded as the end conditions to be described below. That is, the control unit 12 may terminate the operation in the defrosting mode when the rotation of the cooling blower fan 62 is stopped by satisfying the interruption condition.
When the termination condition is satisfied during the operation in the thawing mode, the control unit 12 terminates the operation in the thawing mode. The following conditions 1 to 3 can be mentioned as the conditions that can be adopted in the present embodiment.
The end condition 1 is an operation in the thawing mode performed for a predetermined time. Here, the predetermined time is a preset time. With respect to the prescribed time, it can be defined as: the time including the time when the rotation of the cooling blower fan 62 is stopped when the interruption condition is satisfied may be defined as: the time period during which the rotation of the cooling blower fan 62 is stopped when the interruption condition is satisfied is not included.
The end condition 2 is that the user presses an end button provided on the panel 16. The thawing mode key of the panel 16 also functions as an end key, and if the user presses the thawing mode key 2 times, the control unit 12 may determine that the end condition is satisfied.
The end condition 3 is that the temperature measured by the quench chamber temperature sensor 18 (or the refrigeration temperature sensor 13 when the quench chamber temperature sensor 18 is not provided) is equal to or higher than a predetermined temperature. The predetermined temperature is a predetermined temperature, for example, about 6 ℃.
In the present embodiment, only one of the end conditions 1 to 3 may be set as an end condition for ending the operation in the thawing mode. In the present embodiment, 2 or more of the termination conditions 1 to 3 may be set as termination conditions for terminating the operation in the thawing mode.
After the thawing mode is finished, the control unit 12 returns the rotational speed of the cooling blower fan 62 to the rotational speed before the thawing mode.
As described above, in the present embodiment, during the operation in the defrosting mode, the control unit 12 increases the rotation speed of the cooling blower fan 62 as compared to the case other than the defrosting mode, and therefore, a large amount of cold air having a temperature higher than the frozen stored material flows into the defrosting chamber (the upper tank 24 of the chill chamber 23), and the frozen stored material is quickly defrosted. In addition, during the operation in the thawing mode, the control unit 12 continues to rotate the cooling blower fan 62 even when the cooling chamber door sensors 15a and 15b detect that the cooling chamber door 25a or 25b is opened, so that the air outside the refrigerator 10 is taken into the cooling space, and the frozen stored goods are thawed more quickly.
Further, if the control unit 12 reduces the amount of the coolant flowing into the refrigerating cooler 61 in the defrosting mode, the temperature of the refrigerating cooler 61 rises, and therefore the temperature of the cold air sent to the defrosting compartment rises, and the frozen material in the defrosting compartment is defrosted more quickly.
In addition, if the control unit 12 increases the set temperature of the thawing chamber in the thawing mode, the temperature in the thawing chamber increases, and therefore, the frozen material in the thawing chamber is thawed more quickly.
Further, if the control unit 12 lowers the set temperature of the freezing space in the defrosting mode, the control unit 12 performs control so that the freezing space takes more time to cool than the refrigerating space, and as a result, the temperature of the freezing space rises. As a result, the frozen stock in the thawing chamber is thawed more quickly.
Further, when the temperature measured by the chill chamber temperature sensor 18 (or the refrigeration temperature sensor 13 in the case where the chill chamber temperature sensor 18 is not provided) is equal to or higher than the predetermined temperature in the defrosting mode, the control unit 12 can prevent the temperature in the refrigeration space including the upper tank 24 of the chill chamber 23, which is the defrosting chamber, from excessively increasing if the operation in the defrosting mode is completed.
As in the present embodiment, each of the following devices is provided: in the case of the cold storage cooler 61 that generates cold air to be sent to the cold storage space and the freezing cooler 71 that generates cold air to be sent to the freezing space, the temperature of the cold air generated by the cold storage cooler 61 is higher than the temperature of the cold air generated by the freezing cooler 71. Therefore, by increasing the rotation speed of the cooling blower fan 62 during the operation in the thawing mode, a large amount of relatively high-temperature cold air can be delivered to the thawing compartment, and the frozen stored material can be quickly thawed. In this case, even if the temperature of the refrigerating cooler 61 increases in the defrosting mode, the temperature of the freezing cooler 71 is not affected. The freezing space can be sufficiently cooled in the thawing mode.
In addition, even if the control unit 12 continues to rotate the air blowing fan 62 for cooling after the cooling chamber door sensor 15a or the cooling chamber door sensor 15b detects that only one of the cooling chamber door 25a or the cooling chamber door 25b is opened, the air outside the refrigerator 10 can be taken up to the thawing chamber in a relatively small amount, and the frozen storage can be thawed quickly. In this case, if the refrigerating chamber door sensor 15a and the refrigerating chamber door sensor 15b detect that both the refrigerating chamber door 25a and the refrigerating chamber door 25b are opened, the control unit 12 stops the air blowing fan 62 for refrigerating, and a large amount of air outside the refrigerator 10 is received in the refrigerating space, thereby preventing the temperature of the refrigerating space from excessively rising.
Further, in the operation in the defrosting mode, when the opening of either the refrigerating chamber door 25a or the refrigerating chamber door 25b is continuously detected for a predetermined time or longer by the refrigerating chamber door sensor 15a or the refrigerating chamber door sensor 15b, the control unit 12 stops the refrigerating blower fan 62, and a large amount of air outside the refrigerator 10 is received into the refrigerating space, thereby preventing the temperature of the refrigerating space from excessively increasing.
Further, if the metal tray 22 is provided in the upper tank 24 of the quench chamber 23 as the thawing chamber, the temperature in the upper tank 24 becomes the temperature of the cold air rapidly and the entire temperature in the upper tank 24 becomes uniform because the heat conductivity of the metal tray 22 is good. Therefore, the stored contents in the upper container 24 are rapidly thawed.
In the present embodiment, in the defrosting mode, the control unit 12 rotates the cooling blower fan 62 even during the freezing, and therefore the cold air around the cooler 61 for cooling which has become relatively high temperature during the freezing is sent to the defrosting compartment. Therefore, the frozen stored material can be quickly thawed.
The temperature of the cooler 61 for cold storage is higher in freezing than in cold storage. Therefore, if the control unit 12 makes the rotational speed of the cooling air blowing fan 62 during the freezing cooling greater than the rotational speed of the cooling air blowing fan 62 during the cooling in the defrosting mode, more cold air having a high temperature is sent into the defrosting compartment, and therefore, the stored material can be quickly defrosted.
A modification of the above embodiment will be described.
(modification 1)
In the above embodiment, the thawing chamber is in the upper tank 24 of the quench chamber 23, but the thawing chamber is not limited thereto, and may be any position in the refrigerating space. For example, the thawing chamber may be a partitioned space (excluding the chilling chamber 23) in the refrigerating chamber 20 or a partitioned space in the vegetable chamber 21.
(modification 2)
In the refrigerator 10 according to the above embodiment, a defrosting fan for sending cold air to the defrosting compartment may be provided separately from the cooling blower fan 62. The fan that unfreezes sets up in: the flow path of the cold air from the cooler 61 for cold storage to the thawing chamber (in the upper container 24 of the chill chamber 23 in the above embodiment) is located closer to the thawing chamber than the fan 62 for cold storage.
The control unit 12 controls the defrosting fan in place of the air blowing fan 62 for refrigeration in the above embodiment, similarly to the control of the air blowing fan 62 for refrigeration in the above embodiment. That is, in the operation in the defrosting mode, when the rotation speed of the defrosting fan is set to be higher than the rotation speed of the defrosting fan other than the defrosting mode (including the rotation of the defrosting fan that is stopped when the rotation speed is set to be other than the defrosting mode in the defrosting mode), the control unit 12 continues the rotation of the defrosting fan even when the opening of the refrigerating compartment door sensors 15a and 15b is detected by the refrigerating compartment door sensors 25a and 25 b. The control unit 12 stops the rotation of the defrosting fan when the interruption condition of the above embodiment is satisfied, and ends the operation in the defrosting mode when the termination condition of the above embodiment is satisfied. The control other than the control of the defrosting fan is also the same as in the above embodiment.
When such a thawing fan is provided, the flow of cold air into the thawing chamber can be increased, and the stored material can be thawed quickly.
(modification 3)
In addition to the configuration and control of the refrigerator 10 according to modification 2, a cold storage damper for opening and closing a flow path of cold air from the cold storage cooler 61 to the thawing chamber may be provided. In this case, the defrosting fan is provided on the downstream side of the cold air flow from the refrigeration damper.
The control unit 12 opens the refrigerating damper during the refrigerating cooling and closes the refrigerating damper during the freezing cooling. Therefore, in the thawing mode and in the freeze cooling, the control unit 12 closes the refrigeration damper and rotates the thawing fan. Therefore, the relatively low-temperature cold air on the side of the cooler 61 for cold storage from the cold storage damper is not sent to the defrosting chamber, and the relatively high-temperature cold air on the downstream side of the cold air flow from the cold storage damper is sent to the defrosting chamber. The stock is quickly thawed.
(modification 4)
In addition, unlike the above refrigerator 10, the refrigerator includes only 1 cooler, and may further include: a refrigerating damper for opening and closing a flow path of cold air from the cooler to the refrigerating space, and a freezing damper for opening and closing a flow path of cold air from the cooler to the freezing space. In the refrigerator, the control part controls the refrigerating air door and the freezing air door, thereby making the cold air generated by the cooler flow to the refrigerating space or the freezing space, and alternately cooling the refrigerating space and the freezing space. In such a refrigerator, similarly to the above modification, a defrosting fan is provided in a flow path of the cold air from the cooler to the defrosting chamber, at a position downstream of the cold air flow from the refrigerating damper.
In this refrigerator, the control unit also controls the defrosting fan in the same manner as in modification example 2 and modification example 3. That is, in the operation in the defrosting mode, when the rotation speed of the defrosting fan is set to be higher than the rotation speed of the defrosting fan other than the defrosting mode (including the rotation of the defrosting fan that is stopped when the rotation speed is set to be other than the defrosting mode in the defrosting mode), the control unit 12 continues the rotation of the defrosting fan even when the opening of the refrigerating compartment door sensors 15a and 15b is detected by the refrigerating compartment door sensors 25a and 25 b. The control unit 12 stops the rotation of the defrosting fan when the interruption condition of the above embodiment is satisfied, and ends the operation in the defrosting mode when the termination condition of the above embodiment is satisfied.
In this control, the control unit closes the refrigeration damper to rotate the defrosting fan in the defrosting mode and during the freeze cooling, and opens the refrigeration damper to rotate the defrosting fan in the defrosting mode and during the cold cooling. Therefore, in the thawing mode and in the freezing cooling, as in modification 3, the relatively high temperature cold air on the downstream side of the cold air flow from the cold storage damper is sent into the thawing chamber, and the stored material is thawed quickly.
In addition to the above embodiments, various modifications, substitutions, omissions, and the like may be made without departing from the spirit of the invention. The above embodiments are examples, and the scope of the invention is not limited thereto. The above-described embodiments and modifications thereof are included in the scope equivalent to the invention described in the claims.
Claims (9)
1. A refrigerator, characterized by comprising:
a refrigerated space maintained at a refrigerated temperature;
a thawing chamber provided in the refrigerating space to thaw frozen storage;
a refrigerating fan which delivers cold air to the thawing chamber;
a door that opens and closes the refrigerating space;
a door sensor that detects opening and closing of the door; and
a control section that executes a thawing mode,
the control unit causes the rotational speed of the refrigeration fan to be greater than a rotational speed in a case other than the defrosting mode during operation in the defrosting mode, and causes the refrigeration fan to continue to rotate even if the door sensor detects that the door is opened.
2. The refrigerator according to claim 1,
the refrigerator includes a cooler that generates cold air to be sent to the thawing chamber, and the control unit reduces the amount of coolant flowing into the cooler during operation in the thawing mode.
3. The refrigerator according to claim 1 or 2,
the control unit increases the set temperature of the thawing chamber during operation in the thawing mode.
4. The refrigerator according to claim 1 or 2,
the control unit reduces a set temperature of a space other than a space in which the thawing chamber is provided, during operation in the thawing mode.
5. The refrigerator according to claim 1 or 2,
the control unit is configured to terminate the operation in the thawing mode when the temperature measured by the temperature sensor is equal to or higher than a predetermined temperature.
6. The refrigerator according to claim 1 or 2, characterized by comprising:
a refrigerated space maintained at a refrigerated temperature;
a freezing cooler that generates cold air to be delivered to the freezing space;
a freezing fan that delivers cold air to the freezing space; and
a refrigerating cooler that generates cold air to be delivered to the refrigerating space;
the refrigerating fan also delivers cool air to the refrigerating space.
7. The refrigerator according to claim 1 or 2,
an interior lamp is provided for illuminating the interior of the refrigerated space, and the control unit uses the interior lamp to notify that the door sensor is in operation in the thawing mode when the door sensor detects that the door is open during operation in the thawing mode.
8. The refrigerator according to claim 1 or 2,
the refrigerator comprises a left door and a right door 2, wherein the left door and the right door 2 open and close the refrigerating space, the control part enables the refrigerating fan to continue rotating even if the door sensor detects that only one door is opened during the operation in the unfreezing mode, and the control part enables the refrigerating fan to stop when the door sensor detects that both doors are opened.
9. The refrigerator according to claim 1 or 2,
in the defrosting mode, the controller may stop the refrigerating fan when the door sensor continuously detects that the door is opened for a predetermined time or more.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016108551A JP6723828B2 (en) | 2016-05-31 | 2016-05-31 | refrigerator |
| JP2016-108551 | 2016-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107449207A CN107449207A (en) | 2017-12-08 |
| CN107449207B true CN107449207B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611217063.8A Active CN107449207B (en) | 2016-05-31 | 2016-12-26 | Refrigerator with a door |
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| Country | Link |
|---|---|
| JP (1) | JP6723828B2 (en) |
| CN (1) | CN107449207B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019219125A (en) * | 2018-06-21 | 2019-12-26 | 東芝ライフスタイル株式会社 | refrigerator |
| CN109269194B (en) * | 2018-09-26 | 2023-11-03 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
| JP7236317B2 (en) * | 2019-04-24 | 2023-03-09 | 東芝ライフスタイル株式会社 | refrigerator |
| JP7465686B2 (en) * | 2020-03-18 | 2024-04-11 | 東芝ライフスタイル株式会社 | refrigerator |
| CN111664619A (en) * | 2020-06-05 | 2020-09-15 | 安徽康佳同创电器有限公司 | A structure and refrigeration plant unfreeze for refrigeration plant |
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| JP2002107036A (en) * | 2000-10-03 | 2002-04-10 | Matsushita Electric Ind Co Ltd | Refrigerating apparatus |
| JP2005201533A (en) * | 2004-01-15 | 2005-07-28 | Matsushita Electric Ind Co Ltd | Storage |
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| JPS5818583B2 (en) * | 1975-04-30 | 1983-04-13 | 三洋電機株式会社 | Reizoko |
| JPS5949881U (en) * | 1982-09-24 | 1984-04-02 | シャープ株式会社 | refrigerator |
| JPS61205763A (en) * | 1985-03-08 | 1986-09-11 | 三洋電機株式会社 | Method of operating thawing warehouse |
| JPS62143187U (en) * | 1986-03-04 | 1987-09-09 | ||
| JPH049585A (en) * | 1990-04-26 | 1992-01-14 | Matsushita Refrig Co Ltd | Refrigerator with thawing chamber |
| KR100538175B1 (en) * | 1998-09-02 | 2006-03-20 | 삼성전자주식회사 | Refrigerator temperature control device and method thereof |
| TW528848B (en) * | 2000-08-29 | 2003-04-21 | Hitachi Ltd | Refrigerator |
| JP3739261B2 (en) * | 2000-08-30 | 2006-01-25 | 株式会社日立製作所 | refrigerator |
| CN1230654C (en) * | 2002-08-13 | 2005-12-07 | 乐金电子(天津)电器有限公司 | Cold air distribution device of electric refrigerator |
| JP4653616B2 (en) * | 2005-09-27 | 2011-03-16 | ホシザキ電機株式会社 | Cooling storage |
| JP4642043B2 (en) * | 2007-04-24 | 2011-03-02 | 三菱電機株式会社 | refrigerator |
| KR20110035032A (en) * | 2009-09-29 | 2011-04-06 | 엘지전자 주식회사 | Air conditioner |
| DE102010030561A1 (en) * | 2010-06-25 | 2011-12-29 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with a pouring device for receiving dripping condensation water |
| EP2926675B1 (en) * | 2014-04-01 | 2021-04-21 | ELECTROLUX PROFESSIONAL S.p.A. | Thawing appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002107036A (en) * | 2000-10-03 | 2002-04-10 | Matsushita Electric Ind Co Ltd | Refrigerating apparatus |
| JP2005201533A (en) * | 2004-01-15 | 2005-07-28 | Matsushita Electric Ind Co Ltd | Storage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6723828B2 (en) | 2020-07-15 |
| JP2017215087A (en) | 2017-12-07 |
| CN107449207A (en) | 2017-12-08 |
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Effective date of registration: 20210126 Address after: Science and Technology West Road, Shishan Songgang pine summer Industrial Park, Nanhai District, Foshan, Guangdong Patentee after: TOSHIBA HA MANUFACTURING (NANHAI) Co.,Ltd. Address before: Kanagawa Prefecture, Japan Patentee before: Toshiba Life Electric Co.,Ltd. |
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