CN107024062B - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN107024062B CN107024062B CN201710397628.3A CN201710397628A CN107024062B CN 107024062 B CN107024062 B CN 107024062B CN 201710397628 A CN201710397628 A CN 201710397628A CN 107024062 B CN107024062 B CN 107024062B
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- 238000000034 method Methods 0.000 title claims description 13
- 238000005057 refrigeration Methods 0.000 claims abstract description 140
- 238000007710 freezing Methods 0.000 claims abstract description 72
- 230000008014 freezing Effects 0.000 claims abstract description 72
- 239000003507 refrigerant Substances 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
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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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention provides a refrigerator, comprising: a refrigerating chamber; a freezing chamber; a first temperature-changing chamber provided independently of the refrigerating chamber and the freezing chamber; at least one second temperature-changing chamber accommodated in the refrigerating chamber; a refrigerating chamber air supply duct arranged behind the refrigerating chamber; a refrigeration fan; a refrigerating chamber air door; a second variable temperature chamber air door; the control unit is used for receiving temperature information fed back by the refrigerating chamber temperature sensor and/or the second temperature changing chamber temperature sensor and selectively controlling the opening and closing of the refrigerating chamber air door and/or the second temperature changing chamber air door; and the refrigerating unit is used for receiving the temperature information fed back by the refrigerating chamber temperature sensor and selectively controlling the refrigerating evaporator to switch on or switch off the refrigerant circuit. Compared with the prior art, the refrigerator can ensure that the temperature of the refrigerating chamber is not too low while the temperature zone of the temperature-changing chamber in the refrigerating chamber reaches-7 ℃ or even lower, and meanwhile, the refrigerator has the effects of saving energy, reducing noise and prolonging the service life.
Description
Technical Field
The invention relates to a refrigerating device, in particular to a refrigerator with three systems and five temperature zones and a control method thereof.
Background
Along with the continuous improvement of living standard of people, the quality requirement of household appliances is higher and higher, and a temperature change chamber is required to be arranged for realizing multiple functions of crossing a cold storage and freezing temperature region, such as cold storage, fresh keeping, ice temperature, freezing and the like. At present, two temperature-changing temperature zones are additionally arranged in a refrigerating chamber in most of the existing schemes for realizing the three-system five-temperature-zone refrigerator, but the temperature range of the newly-added two temperature-changing zones can only be above 0 ℃ at the lowest in consideration of the temperature range of the refrigerating chamber, and compared with the temperature-changing chambers independently arranged from the refrigerating chamber and a freezing chamber, the temperature-changing range is narrow, and the requirements of users on low temperatures such as soft freezing, freezing and the like cannot be met.
Disclosure of Invention
One of the objectives of the present invention is to provide a refrigerator that solves the above-mentioned problems, wherein the temperature-variable chamber in the refrigerating chamber can reach a temperature range of 5 to-7 ℃.
Another object of the present invention is to provide a control method of the refrigerator.
In order to achieve one of the above objects, the present invention provides a refrigerator, comprising:
the refrigerating chamber is internally provided with a refrigerating chamber temperature sensor for collecting the temperature of the refrigerating chamber;
a freezing chamber;
a first temperature-changing chamber provided independently of the refrigerating chamber and the freezing chamber;
at least two second temperature change chambers accommodated in the refrigerating chamber, wherein a second temperature change chamber temperature sensor used for collecting the temperature of the second temperature change chambers is arranged in each second temperature change chamber;
the refrigerating chamber air supply duct is arranged behind the refrigerating chamber, and a refrigerating fan for supplying air to the refrigerating chamber and the second temperature changing chamber is arranged in the refrigerating chamber air supply duct;
a refrigerating chamber air door is arranged between the refrigerating chamber air opening and the refrigerating fan, and a second temperature-variable chamber air door is arranged between the second temperature-variable chamber air opening and the refrigerating fan;
the control unit is used for receiving temperature information fed back by the refrigerating chamber temperature sensor and/or the second temperature changing chamber temperature sensor and selectively controlling the opening and closing of the refrigerating chamber air door and/or the second temperature changing chamber air door;
the refrigerating unit is used for receiving temperature information fed back by the refrigerating chamber temperature sensor and selectively controlling the refrigerating evaporator to switch on or switch off the refrigerant loop;
when the two second temperature-changing chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, when the temperature in the refrigeration chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with a refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor, the refrigeration fan operates, and the air door of the refrigeration chamber is opened; when only the second temperature-changing chamber reaches the starting point, the air door of the second temperature-changing chamber is opened until the temperature in the refrigerating chamber reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor; when the temperature in the refrigerating chamber reaches a shutdown point, the refrigerating unit controls the refrigerating evaporator to shut off a refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor, meanwhile, judgment is carried out, if the temperature of any one second temperature-changing chamber is higher than the shutdown point, the corresponding second temperature-changing chamber air door is opened, the refrigerating fan continues to operate until the temperature of the second temperature-changing chamber reaches the shutdown point, the corresponding second temperature-changing chamber air door is closed, and the refrigerating fan stops operating.
As a further improvement of the invention, the number of the second temperature-changing chambers is two, the two second temperature-changing chambers are arranged at the bottom of the refrigerating chamber in parallel, and heat insulation layers are arranged at the top and the bottom of the second temperature-changing chambers and between the two second temperature-changing chambers.
As a further refinement of the invention, the refrigeration unit is configured to:
the exhaust port of the compressor is connected with the inlet of the one-inlet three-outlet electric valve through the condenser and the dry filter in sequence;
the first outlet of the one-inlet three-outlet electric valve is connected with the air inlet of the compressor through a refrigeration capillary, a refrigeration evaporator and a freezing evaporator in sequence;
the second outlet of the one-inlet three-outlet electric valve is connected with the air inlet of the compressor through a variable temperature capillary tube, a variable temperature evaporator and a refrigeration evaporator in sequence;
the third outlet of the one-inlet three-outlet electric valve is connected with the air inlet of the compressor through a freezing capillary tube and a freezing evaporator in sequence;
the refrigerating evaporator controls the temperature of the refrigerating chamber; the temperature of the first temperature-changing chamber is controlled by the temperature-changing evaporator; the freezing evaporator controls the temperature of the freezing chamber.
As a further improvement of the present invention, the refrigerating chamber temperature sensor is configured to feed back information to the control unit to place the refrigerating chamber damper in an open position when the temperature in the refrigerating chamber reaches a preset starting point; the second temperature change chamber temperature sensor is configured to feed back information to the control unit to place the second temperature change chamber damper in an open position when the temperature in the second temperature change chamber reaches a preset startup point.
As a further improvement of the present invention, the refrigerating chamber temperature sensor is configured to feed back information to the control unit to place the refrigerating chamber damper in a closed position when the temperature in the refrigerating chamber reaches a preset shutdown point; the second temperature change chamber temperature sensor is configured to feed back information to the control unit to place the second temperature change chamber damper in a closed position when the temperature in the second temperature change chamber reaches a preset shutdown point.
As a further improvement of the present invention, the refrigerator further comprises a refrigerating chamber compensation heating device and a second variable temperature chamber compensation heating device.
To achieve another object of the present invention, the present invention provides a control method of a refrigerator, wherein the refrigerator includes: the control method comprises the following steps:
when the two second temperature change chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, and the refrigeration unit selectively controls the refrigeration evaporator to be connected or disconnected with the refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor;
when the two second temperature-changing chambers are set to be in a freezing gear, the temperatures of the two second temperature-changing chambers are collected, when the temperature of any one second temperature-changing chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be connected with the refrigerant circuit, and when the temperatures of the two second temperature-changing chambers reach a shutdown point, the refrigeration unit controls the refrigeration evaporator to be connected with the refrigerant circuit;
when one of the second temperature-changing chambers is set as a freezing gear, the temperature in the second temperature-changing chamber set as the freezing gear is collected, and the refrigeration unit selectively controls the refrigeration evaporator to be switched on or switched off a refrigerant loop according to temperature information fed back by a temperature sensor of the second temperature-changing chamber set as the freezing gear;
when the two second temperature-changing chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, when the temperature in the refrigeration chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with a refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor, the refrigeration fan operates, and the air door of the refrigeration chamber is opened; when only the second temperature-changing chamber reaches the starting point, the air door of the second temperature-changing chamber is opened until the temperature in the refrigerating chamber reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor; when the temperature in the refrigerating chamber reaches a shutdown point, the refrigerating unit controls the refrigerating evaporator to shut off a refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor, meanwhile, judgment is carried out, if the temperature of any one second temperature-changing chamber is higher than the shutdown point, the corresponding second temperature-changing chamber air door is opened, the refrigerating fan continues to operate until the temperature of the second temperature-changing chamber reaches the shutdown point, the corresponding second temperature-changing chamber air door is closed, and the refrigerating fan stops operating.
As a further improvement of the invention, when the two second temperature-varying chambers are set to be in a freezing gear, the temperatures of the two second temperature-varying chambers are collected, when the temperature of any one second temperature-varying chamber reaches the starting temperature, the refrigeration unit controls the refrigeration evaporator to be connected with a refrigerant loop, the refrigeration fan operates, the air door of the corresponding second temperature-varying chamber is opened, and meanwhile, the judgment is carried out, if the temperature of the refrigeration chamber is higher than the shutdown point at the moment, the air door of the refrigeration chamber is opened until the temperature of the refrigeration chamber reaches the shutdown point, and the air door of the refrigeration chamber is closed; when the temperature of the refrigerating chamber reaches the starting point, the refrigerating fan operates, and the air door of the refrigerating chamber is opened until the temperature of any one second temperature-changing chamber reaches the starting point, the refrigerating unit controls the refrigerating evaporator to be connected with the refrigerant loop; when the temperatures of the two second temperature change chambers reach a shutdown point, the refrigeration unit controls the refrigeration evaporator to shut off the refrigerant loop, and meanwhile, if the temperature of the refrigerating chamber is higher than the shutdown point, the air door of the refrigerating chamber is opened until the temperature of the refrigerating chamber reaches the shutdown point, the air door of the refrigerating chamber is closed, and the refrigeration fan stops running.
As a further improvement of the invention, when one of the second temperature-changing chambers is set as a freezing gear, the temperature in the second temperature-changing chamber set as the freezing gear is collected, when the temperature in the second temperature-changing chamber set as the freezing gear reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with the refrigerant loop according to temperature information fed back by the temperature sensor of the second temperature-changing chamber set as the freezing gear, the refrigeration fan operates, the air door of the second temperature-changing chamber set as the freezing gear is opened, and meanwhile, the judgment is carried out, if the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber is higher than a shutdown point, the corresponding air door of the refrigerating chamber or the second temperature-changing chamber is opened until the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber reaches the shutdown point, and the corresponding air door of the refrigerating chamber; when only the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber reaches the starting point, the air door of the refrigerating chamber or the air door of the other second temperature-changing chamber is opened until the temperature in the second temperature-changing chamber set as the freezing gear reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the temperature sensor of the second temperature-changing chamber set as the freezing gear; when the temperature in the second variable temperature chamber set as the freezing gear reaches a shutdown point, the refrigeration unit controls the refrigeration evaporator to shut off a refrigerant loop according to temperature information fed back by the second variable temperature chamber temperature sensor set as the freezing gear, and meanwhile, the judgment is carried out, if the temperature of the refrigerating chamber or the temperature of the other second variable temperature chamber is higher than the startup point at the moment, the air door of the refrigerating chamber or the air door of the other second variable temperature chamber is opened until the temperature of the refrigerating chamber or the temperature of the other second variable temperature chamber reaches the shutdown point, the air door of the refrigerating chamber or the air door of the other second variable temperature chamber is closed, and the refrigeration fan stops running until the temperature of the refrigerating chamber and the temperature in the other second variable temperature chamber reach.
Compared with the prior art, the invention has the beneficial effects that: the refrigerator can ensure that the temperature of the refrigerating chamber is not too low while the temperature zone of the temperature changing chamber in the refrigerating chamber reaches-7 ℃ or even lower, and meanwhile, the refrigerator has the effects of saving energy, reducing noise and prolonging the service life.
Drawings
Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a refrigeration unit of a refrigerator according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of a portion of a refrigeration duct of a refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an air outlet of a refrigerating chamber of a refrigerator according to an embodiment of the present invention.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
Fig. 1 shows a preferred embodiment of a refrigerator 100 according to the present invention. The invention is explained by taking a refrigerator 100 with a three-system five-temperature-zone air-cooling cross door structure as an example, the refrigerator 100 comprises a refrigerating chamber 10, a freezing chamber 20 and a first temperature-changing chamber 30, wherein the first temperature-changing chamber 30 is arranged independently from the refrigerating chamber 10 and the freezing chamber 20, two second temperature-changing chambers 101 and 102 are further arranged in the refrigerating chamber 10, preferably, the second temperature-changing chambers 101 and 102 are arranged at the bottom of the refrigerating chamber 10 in parallel, and heat insulation layers (not shown) are arranged at the top and the bottom of the second temperature-changing chambers 101 and 102 and between the two second temperature-changing chambers. The heat insulation layers are filled with heat insulation materials such as foaming materials, so that the cold loss of the second temperature changing chambers 101 and 102 is less, and the second temperature changing chambers 101 and 102 can reach a temperature region of minus 7 ℃.
Referring to fig. 2, the refrigerator 100 further includes a control unit (not shown) and a cooling unit, wherein the cooling unit is configured to:
the exhaust port of the compressor 40 is connected to the inlet of a one-in three-out electric valve 70 through a condenser 50 and a dry filter 60 in sequence;
the first outlet of the one-inlet three-outlet electric valve 70 is connected with the air inlet of the compressor 40 through a refrigeration capillary 103, a refrigeration evaporator 104 and a freezing evaporator 202 in sequence;
the second outlet of the one-inlet-three-outlet electric valve 70 is connected to the air inlet of the compressor 40 through the variable temperature capillary 301, the variable temperature evaporator 302 and the refrigeration evaporator 202 in sequence;
the third outlet of the one-inlet-three-outlet electric valve 70 is connected with the air inlet of the compressor through a freezing capillary 201 and a freezing evaporator 202 in sequence;
the refrigerating evaporator 104 controls the temperature of the refrigerating chamber 10; the variable temperature evaporator 302 controls the temperature of the first variable temperature chamber 30; the freezing evaporator 202 controls the temperature of the freezing chamber 20.
Preferably, the refrigerating unit further includes a dry filter 60 and a dew-removing pipe 80, wherein the dry filter 60 is disposed between the condenser 50 and the one-in-three-out electric valve 70, and the dew-removing pipe 80 is disposed between the condenser 50 and the dry filter 60.
Referring to fig. 3 and 4, a refrigerating chamber duct 90 is disposed behind the refrigerating chamber 10, and a refrigerating chamber air supply duct 91 and second variable temperature chamber air supply ducts 92 and 93 are disposed on a duct cover (not shown) of the refrigerating chamber duct 90, wherein the refrigerating chamber air supply duct 91 is communicated with the refrigerating chamber 10 through a refrigerating chamber air inlet 106, and the second variable temperature chamber air supply ducts 92 and 93 are communicated with the second variable temperature chambers 101 and 102 through second variable temperature chamber air inlets 1011 and 1021, respectively.
A refrigerating fan 94 for supplying air to the refrigerating chamber 10 and the second variable temperature chambers 101 and 102 simultaneously is further provided in the refrigerating duct 90, a refrigerating chamber damper 911 is provided between the refrigerating chamber air opening 106 and the refrigerating fan 94, and second variable temperature chamber dampers 921 and 931 are provided between the second variable temperature chamber air openings 1011 and 1021 and the refrigerating fan 94, respectively.
A refrigerating compartment temperature sensor (not shown) for detecting the temperature of the refrigerating compartment 10 is provided in the refrigerating compartment 10, and second temperature-varying compartment temperature sensors (not shown) for detecting the temperatures of the second temperature-varying compartments are provided in the second temperature- varying compartments 101 and 102, respectively.
The control unit is configured to receive temperature information fed back by the refrigerating compartment temperature sensor and/or the second temperature changing compartment temperature sensor and selectively control opening and closing of the refrigerating compartment damper 911 and/or the second temperature changing compartment dampers 921, 931.
The refrigeration unit is configured to receive temperature information fed back by the refrigeration compartment temperature sensor and selectively control the refrigeration evaporator to turn on or off the refrigerant circuit.
Specifically, the refrigerating compartment temperature sensor is configured to feed back information to the control unit when the temperature in the refrigerating compartment 10 reaches a preset starting point, and place the refrigerating compartment damper in an open position; the second temperature change chamber temperature sensor is configured to feed back information to the control unit when the temperature in the second temperature change chamber reaches a preset starting point, and the second temperature change chamber air door is placed at an opening position. The refrigerating chamber temperature sensor is configured to feed back information to the control unit when the temperature in the refrigerating chamber reaches a preset shutdown point, and the refrigerating chamber air door is arranged at a closed position; the second temperature change chamber temperature sensor is configured to feed back information to the control unit when the temperature in the second temperature change chamber reaches a preset shutdown point, and the second temperature change chamber air door is placed at a closed position.
The independent control of the three temperature areas in the refrigerating chamber can be realized through the refrigerating chamber evaporator, three independent air doors and one refrigerating fan. Preferably, the refrigerator 100 further includes a refrigerating compartment compensation heating device (not shown) and a second variable temperature compartment compensation heating device (not shown), and when the ambient temperature is too low, the compensation heating wires are turned on to compensate the refrigerating compartment 10 and the second variable temperature compartments 101 and 102 to avoid the temperatures thereof from being too low.
Correspondingly, the invention also relates to a control method applied to the refrigerator, wherein the refrigerator comprises the following steps: the control method comprises the following steps:
when the two second temperature change chambers are both set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, and the refrigeration unit selectively controls the refrigeration evaporator to be connected or disconnected with the refrigerant loop according to the temperature information fed back by the refrigeration chamber temperature sensor. When the two second temperature-changing chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, when the temperature in the refrigeration chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with a refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor, the refrigeration fan operates, and the air door of the refrigeration chamber is opened; when only the second temperature-changing chamber reaches the starting point, the air door of the second temperature-changing chamber is opened until the temperature in the refrigerating chamber reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor; when the temperature in the refrigerating chamber reaches a shutdown point, the refrigerating unit controls the refrigerating evaporator to shut off a refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor, meanwhile, judgment is carried out, if the temperature of any one second temperature-changing chamber is higher than the shutdown point, the corresponding second temperature-changing chamber air door is opened, the refrigerating fan continues to operate until the temperature of the second temperature-changing chamber reaches the shutdown point, the corresponding second temperature-changing chamber air door is closed, and the refrigerating fan stops operating.
When the two second temperature-changing chambers are set to be in a freezing gear, the temperatures of the two second temperature-changing chambers are collected, when the temperature of any one second temperature-changing chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be connected with the refrigerant loop, and when the temperatures of the two second temperature-changing chambers reach a shutdown point, the refrigeration unit controls the refrigeration evaporator to be connected with the refrigerant loop. When the two second temperature-changing chambers are set to be in a freezing gear, the temperatures of the two second temperature-changing chambers are collected, when the temperature of any one second temperature-changing chamber reaches the starting temperature, the refrigeration unit controls the refrigeration evaporator to be connected with a refrigerant loop, the refrigeration fan operates, the air door of the corresponding second temperature-changing chamber is opened, judgment is carried out at the same time, if the temperature of the refrigeration chamber is higher than the shutdown point at the moment, the air door of the refrigeration chamber is opened until the temperature of the refrigeration chamber reaches the shutdown point, and the air door of the refrigeration chamber is closed; when the temperature of the refrigerating chamber reaches the starting point, the refrigerating fan operates, and the air door of the refrigerating chamber is opened until the temperature of any one second temperature-changing chamber reaches the starting point, the refrigerating unit controls the refrigerating evaporator to be connected with the refrigerant loop; when the temperatures of the two second temperature change chambers reach a shutdown point, the refrigeration unit controls the refrigeration evaporator to shut off the refrigerant loop, and meanwhile, if the temperature of the refrigerating chamber is higher than the shutdown point, the air door of the refrigerating chamber is opened until the temperature of the refrigerating chamber reaches the shutdown point, the air door of the refrigerating chamber is closed, and the refrigeration fan stops running.
When one of the second temperature-changing chambers is set to be at a freezing gear, the temperature in the second temperature-changing chamber set to be at the freezing gear is collected, and the refrigeration unit selectively controls the refrigeration evaporator to be switched on or switched off the refrigerant loop according to temperature information fed back by the temperature sensor of the second temperature-changing chamber set to be at the freezing gear. When one of the second temperature-changing chambers is set to be at a freezing gear, acquiring the temperature in the second temperature-changing chamber set to be at the freezing gear, when the temperature in the second temperature-changing chamber set to be at the freezing gear reaches a starting point, controlling a refrigeration evaporator to be communicated with a refrigerant loop by a refrigeration unit according to temperature information fed back by a temperature sensor of the second temperature-changing chamber set to be at the freezing gear, operating a refrigeration fan, opening an air door of the second temperature-changing chamber set to be at the freezing gear, judging simultaneously, if the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber is higher than a shutdown point, opening the corresponding air door of the refrigerating chamber or the air door of the second temperature-changing chamber until the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber reaches the shutdown point, and closing the corresponding; when only the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber reaches the starting point, the air door of the refrigerating chamber or the air door of the other second temperature-changing chamber is opened until the temperature in the second temperature-changing chamber set as the freezing gear reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the temperature sensor of the second temperature-changing chamber set as the freezing gear; when the temperature in the second variable temperature chamber set as the freezing gear reaches a shutdown point, the refrigeration unit controls the refrigeration evaporator to shut off a refrigerant loop according to temperature information fed back by the second variable temperature chamber temperature sensor set as the freezing gear, and meanwhile, the judgment is carried out, if the temperature of the refrigerating chamber or the temperature of the other second variable temperature chamber is higher than the startup point at the moment, the air door of the refrigerating chamber or the air door of the other second variable temperature chamber is opened until the temperature of the refrigerating chamber or the temperature of the other second variable temperature chamber reaches the shutdown point, the air door of the refrigerating chamber or the air door of the other second variable temperature chamber is closed, and the refrigeration fan stops running until the temperature of the refrigerating chamber and the temperature in the other second variable temperature chamber reach.
According to the control method of the refrigerator, on the premise that the normal control of the temperatures of the three temperature areas of the refrigerating chamber is ensured through logic optimization, the energy is saved, and the effects of avoiding frequent refrigeration, reducing noise, prolonging the service life of the refrigerator and the like are achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A refrigerator, characterized by comprising:
the refrigerating chamber is internally provided with a refrigerating chamber temperature sensor for collecting the temperature of the refrigerating chamber;
a freezing chamber;
a first temperature-changing chamber provided independently of the refrigerating chamber and the freezing chamber;
at least two second temperature change chambers accommodated in the refrigerating chamber, wherein a second temperature change chamber temperature sensor used for collecting the temperature of the second temperature change chambers is arranged in each second temperature change chamber;
the refrigerating chamber air supply duct is arranged behind the refrigerating chamber, and a refrigerating fan for supplying air to the refrigerating chamber and the second temperature changing chamber is arranged in the refrigerating chamber air supply duct;
a refrigerating chamber air door is arranged between the refrigerating chamber air opening and the refrigerating fan, and a second temperature-variable chamber air door is arranged between the second temperature-variable chamber air opening and the refrigerating fan;
the control unit is used for receiving temperature information fed back by the refrigerating chamber temperature sensor and/or the second temperature changing chamber temperature sensor and selectively controlling the opening and closing of the refrigerating chamber air door and/or the second temperature changing chamber air door;
the refrigerating unit is used for receiving temperature information fed back by the refrigerating chamber temperature sensor and selectively controlling the refrigerating evaporator to switch on or switch off the refrigerant loop;
when the two second temperature-changing chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, when the temperature in the refrigeration chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with a refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor, the refrigeration fan operates, and the air door of the refrigeration chamber is opened; when only the second temperature-changing chamber reaches the starting point, the air door of the second temperature-changing chamber is opened until the temperature in the refrigerating chamber reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor; when the temperature in the refrigerating chamber reaches a shutdown point, the refrigerating unit controls the refrigerating evaporator to shut off a refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor, meanwhile, judgment is carried out, if the temperature of any one second temperature-changing chamber is higher than the shutdown point, the corresponding second temperature-changing chamber air door is opened, the refrigerating fan continues to operate until the temperature of the second temperature-changing chamber reaches the shutdown point, the corresponding second temperature-changing chamber air door is closed, and the refrigerating fan stops operating.
2. The refrigerator according to claim 1, wherein the number of the second temperature-varying chambers is two, the two second temperature-varying chambers are arranged at the bottom of the refrigerating chamber in parallel, and heat insulating layers are arranged between the top and the bottom of the second temperature-varying chambers and between the two second temperature-varying chambers.
3. The refrigerator of claim 1, wherein the refrigeration unit is configured to:
the exhaust port of the compressor is connected with the inlet of the one-inlet three-outlet electric valve through the condenser and the dry filter in sequence;
the first outlet of the one-inlet three-outlet electric valve is connected with the air inlet of the compressor through a refrigeration capillary, a refrigeration evaporator and a freezing evaporator in sequence;
the second outlet of the one-inlet three-outlet electric valve is connected with the air inlet of the compressor through a variable temperature capillary tube, a variable temperature evaporator and a refrigeration evaporator in sequence;
the third outlet of the one-inlet three-outlet electric valve is connected with the air inlet of the compressor through a freezing capillary tube and a freezing evaporator in sequence;
the refrigerating evaporator controls the temperature of the refrigerating chamber; the temperature of the first temperature-changing chamber is controlled by the temperature-changing evaporator; the freezing evaporator controls the temperature of the freezing chamber.
4. The refrigerator of claim 2, wherein the freezer temperature sensor is configured to feed back information to the control unit to place the freezer door in an open position when the freezer temperature reaches a preset turn-on point; the second temperature change chamber temperature sensor is configured to feed back information to the control unit to place the second temperature change chamber damper in an open position when the temperature in the second temperature change chamber reaches a preset startup point.
5. The refrigerator of claim 4 wherein the freezer temperature sensor is configured to feed back information to the control unit to place the freezer door in a closed position when the freezer temperature reaches a preset shutdown point; the second temperature change chamber temperature sensor is configured to feed back information to the control unit to place the second temperature change chamber damper in a closed position when the temperature in the second temperature change chamber reaches a preset shutdown point.
6. The refrigerator of claim 2, further comprising a refrigerating compartment compensation heating device and a second variable temperature compartment compensation heating device.
7. A control method of a refrigerator according to claim 1, wherein the refrigerator comprises: the refrigerator comprises a control unit, a refrigeration unit, a refrigerating chamber, a freezing chamber, a first temperature-changing chamber independent of the refrigerating chamber and the freezing chamber, and two second temperature-changing chambers accommodated in the refrigerating chamber, and is characterized in that the control method comprises the following steps:
when the two second temperature change chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, and the refrigeration unit selectively controls the refrigeration evaporator to be connected or disconnected with the refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor;
when the two second temperature-changing chambers are set to be in a freezing gear, the temperatures of the two second temperature-changing chambers are collected, when the temperature of any one second temperature-changing chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be connected with the refrigerant circuit, and when the temperatures of the two second temperature-changing chambers reach a shutdown point, the refrigeration unit controls the refrigeration evaporator to be connected with the refrigerant circuit;
when one of the second temperature-changing chambers is set as a freezing gear, the temperature in the second temperature-changing chamber set as the freezing gear is collected, and the refrigeration unit selectively controls the refrigeration evaporator to be switched on or switched off a refrigerant loop according to temperature information fed back by a temperature sensor of the second temperature-changing chamber set as the freezing gear;
when the two second temperature-changing chambers are set to be in a refrigeration gear, the temperature in the refrigeration chamber is collected, when the temperature in the refrigeration chamber reaches a starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with a refrigerant loop according to temperature information fed back by the refrigeration chamber temperature sensor, the refrigeration fan operates, and the air door of the refrigeration chamber is opened; when only the second temperature-changing chamber reaches the starting point, the air door of the second temperature-changing chamber is opened until the temperature in the refrigerating chamber reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor; when the temperature in the refrigerating chamber reaches a shutdown point, the refrigerating unit controls the refrigerating evaporator to shut off a refrigerant loop according to temperature information fed back by the refrigerating chamber temperature sensor, meanwhile, judgment is carried out, if the temperature of any one second temperature-changing chamber is higher than the shutdown point, the corresponding second temperature-changing chamber air door is opened, the refrigerating fan continues to operate until the temperature of the second temperature-changing chamber reaches the shutdown point, the corresponding second temperature-changing chamber air door is closed, and the refrigerating fan stops operating.
8. The control method according to claim 7, characterized in that when the two second temperature-changing chambers are both set to be in a freezing gear, the temperatures of the two second temperature-changing chambers are collected, when the temperature of any one of the second temperature-changing chambers reaches a starting temperature, the refrigeration unit controls the refrigeration evaporator to be connected with a refrigerant circuit, the refrigeration fan operates, the air door of the corresponding second temperature-changing chamber is opened, and meanwhile, if the temperature of the refrigeration chamber is higher than a shutdown point, the air door of the refrigeration chamber is opened until the temperature of the refrigeration chamber reaches the shutdown point, and the air door of the refrigeration chamber is closed; when the temperature of the refrigerating chamber reaches the starting point, the refrigerating fan operates, and the air door of the refrigerating chamber is opened until the temperature of any one second temperature-changing chamber reaches the starting point, the refrigerating unit controls the refrigerating evaporator to be connected with the refrigerant loop; when the temperatures of the two second temperature change chambers reach a shutdown point, the refrigeration unit controls the refrigeration evaporator to shut off the refrigerant loop, and meanwhile, if the temperature of the refrigerating chamber is higher than the shutdown point, the air door of the refrigerating chamber is opened until the temperature of the refrigerating chamber reaches the shutdown point, the air door of the refrigerating chamber is closed, and the refrigeration fan stops running.
9. The control method according to claim 7, wherein when one of the second temperature-changing chambers is set to a freezing range, a temperature in the second temperature-changing chamber set to the freezing range is collected, when the temperature in the second variable temperature chamber set as the freezing gear reaches the starting point, the refrigeration unit controls the refrigeration evaporator to be communicated with the refrigerant loop according to the temperature information fed back by the temperature sensor of the second variable temperature chamber set as the freezing gear, the refrigeration fan operates, the air door of the second variable temperature chamber set as the freezing gear is opened, meanwhile, if the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber is higher than the shutdown point, the corresponding air door of the refrigerating chamber or the air door of the second temperature-changing chamber is opened until the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber reaches a shutdown point, and the corresponding air door of the refrigerating chamber or the air door of the second temperature-changing chamber is closed; when only the temperature of the refrigerating chamber or the temperature of the other second temperature-changing chamber reaches the starting point, the air door of the refrigerating chamber or the air door of the other second temperature-changing chamber is opened until the temperature in the second temperature-changing chamber set as the freezing gear reaches the starting point, and the refrigerating unit controls the refrigerating evaporator to be communicated with the refrigerant loop according to temperature information fed back by the temperature sensor of the second temperature-changing chamber set as the freezing gear; when the temperature in the second variable temperature chamber set as the freezing gear reaches a shutdown point, the refrigeration unit controls the refrigeration evaporator to shut off a refrigerant loop according to temperature information fed back by the second variable temperature chamber temperature sensor set as the freezing gear, and meanwhile, the judgment is carried out, if the temperature of the refrigerating chamber or the temperature of the other second variable temperature chamber is higher than the startup point at the moment, the air door of the refrigerating chamber or the air door of the other second variable temperature chamber is opened until the temperature of the refrigerating chamber or the temperature of the other second variable temperature chamber reaches the shutdown point, the air door of the refrigerating chamber or the air door of the other second variable temperature chamber is closed, and the refrigeration fan stops running until the temperature of the refrigerating chamber and the temperature in the other second variable temperature chamber reach.
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| CN108007036A (en) * | 2017-12-06 | 2018-05-08 | 博维恩冷冻科技（苏州）有限公司 | A kind of high abrasion refrigerating plant and its strengthening process |
| CN108800715B (en) * | 2018-06-19 | 2021-02-02 | 海信（山东）冰箱有限公司 | Refrigeration equipment and control method |
| CN108759249A (en) * | 2018-07-24 | 2018-11-06 | 长虹美菱股份有限公司 | A kind of cross side by side combination refrigerator with double alternating temperatures |
| CN110953802B (en) * | 2019-12-09 | 2021-06-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112050530A (en) * | 2020-09-11 | 2020-12-08 | 长虹美菱股份有限公司 | Refrigerator and control method thereof |
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