CN111271921A - A kind of refrigerator - Google Patents

A kind of refrigerator Download PDF

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Publication number
CN111271921A
CN111271921A CN202010076070.0A CN202010076070A CN111271921A CN 111271921 A CN111271921 A CN 111271921A CN 202010076070 A CN202010076070 A CN 202010076070A CN 111271921 A CN111271921 A CN 111271921A
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CN
China
Prior art keywords
temperature
chamber
refrigerating
refrigerator
changing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010076070.0A
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Chinese (zh)
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CN111271921B (en
Inventor
陈桂生
杨春华
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Priority to CN202010076070.0A priority Critical patent/CN111271921B/en
Publication of CN111271921A publication Critical patent/CN111271921A/en
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Publication of CN111271921B publication Critical patent/CN111271921B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067Evaporator fan units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/16Convertible refrigerators

Abstract

The present invention provides a refrigerator, including: the refrigerating chamber is internally provided with a refrigerating temperature sensor for collecting the temperature of the refrigerating chamber; the temperature-changing chamber is internally provided with a temperature-changing temperature sensor for collecting the temperature of the temperature-changing chamber; a cooling unit configured to supply cold air to each of the temperature-changing chambers; the air inlet pipeline is arranged between the refrigerating chamber and any one of the temperature-changing chambers and is configured to convey cold air in any one of the temperature-changing chambers to the refrigerating chamber; an air door is arranged at the inlet end of the air inlet pipeline and used for opening or blocking the air inlet pipeline; and the refrigerating temperature sensor, the variable temperature sensor, the refrigerating unit and the air door are respectively electrically connected with the controller. By adopting the refrigerator adopting the technical scheme of the invention, the compartment refrigeration modes of the refrigerator are more diversified so as to meet the requirements of users, the market competitiveness of the refrigerator is improved, and the refrigeration unit runs stably, so that the refrigerator runs stably.

Description

A kind of refrigerator
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator.
Background
The existing refrigerator is generally provided with a refrigerating chamber, a freezing chamber and a temperature changing chamber, and the volume of the refrigerating chamber is generally the largest. The temperature-changing chamber can be used for adjusting the temperature, and the temperature adjusting range of the temperature-changing chamber is switched between the functions of refrigerating and freezing food storage, so that the temperature-changing chamber can be set into a refrigerating chamber or a freezing chamber according to actual requirements. In the in-service use process, the user carries out the adjustment of variable temperature room temperature according to different seasons, different temperature room storage capacity and sets for, specifically, when cold-stored food storage demand is many, the variable temperature room sets up as the walk-in, and when frozen food storage demand is many, the variable temperature room sets up as the walk-in.
The existing refrigerator has the following defects: 1. the cold quantity of the existing refrigerating chamber is provided by the freezing chamber, the variable temperature chamber realizes the cold quantity supply in the variable temperature chamber, the freezing chamber cannot be adjusted to be used by the variable temperature chamber due to the load matching problem, otherwise, when the freezing chamber is set to be the storage temperature of refrigerated foods, the existing refrigerating chamber cannot reach the specified refrigerating temperature, and by taking the existing three-chamber refrigerator as an example, as shown in figure 1, the refrigerator can only realize two refrigerating modes: the refrigerator is limited in use by cold storage + freezing + cold storage, cold storage + freezing; 2. the refrigerating chamber of the existing refrigerator is provided with cold energy by a refrigerating circuit in a single freezing chamber, so that the refrigerating circuit in the freezing chamber runs under high load, and the running fault of the refrigerator is easily caused.
Disclosure of Invention
The invention aims to provide a refrigerator, which has more various compartment refrigeration modes to meet the requirements of users, improves the market competitiveness of the refrigerator, and ensures that a refrigeration unit runs stably so as to ensure that the refrigerator runs stably.
Based on this, the present invention provides a refrigerator comprising:
the refrigerating chamber is internally provided with a refrigerating temperature sensor for collecting the temperature of the refrigerating chamber;
the temperature-changing chamber is internally provided with a temperature-changing temperature sensor for collecting the temperature of the temperature-changing chamber;
a cooling unit configured to supply cold air to each of the temperature-changing chambers;
the air inlet pipeline is arranged between the refrigerating chamber and any one of the temperature change chambers and is configured to convey cold air in any one of the temperature change chambers to the refrigerating chamber;
an air door is arranged at the inlet end of the air inlet pipeline and used for opening or blocking the air inlet pipeline;
and the refrigerating temperature sensor, the variable temperature sensor, the refrigerating unit and the air door are respectively electrically connected with the controller.
Preferably, the refrigerating chamber is arranged on the top side of the refrigerator main body, and the number of the temperature change chambers is two, namely a first temperature change chamber and a second temperature change chamber; the first temperature-changing chamber and the second temperature-changing chamber are located at the bottom side of the refrigerating chamber side by side.
Preferably, an air inlet pipeline positioned in the first temperature-changing chamber is provided with a first air door, an air inlet pipeline positioned in the second temperature-changing chamber is provided with a second air door, and the first air door and the second air door are respectively electrically connected with the controller.
Preferably, a first evaporator is disposed at a rear side of the first temperature-changing chamber, a second evaporator is disposed at a rear side of the second temperature-changing chamber, and the refrigeration unit is configured to:
the exhaust port of the compressor is connected with the inlet of the one-inlet two-outlet electromagnetic valve through the condenser;
a first outlet of the first-inlet and second-outlet electromagnetic valve is connected to an air inlet of the compressor through a first capillary tube and the first evaporator in sequence;
and a second outlet of the one-inlet and two-outlet electromagnetic valve is connected with an air inlet of the compressor through a second capillary tube and the second evaporator in sequence.
Preferably, when the first temperature-changing chamber is configured to be in a freezing gear, the first damper is in an open state, and when the first temperature-changing chamber is configured to be in a cold storage gear, the first damper is in a closed state.
Preferably, when the second temperature-changing chamber is configured to be in a freezing gear, the second damper is in an open state, and when the second temperature-changing chamber is configured to be in a cold storage gear, the second damper is in a closed state.
Preferably, when the first temperature-changing chamber is configured as a freezing range and when the second temperature-changing chamber is configured as a freezing range, the first damper and/or the second damper is/are in an open state.
Preferably, the first temperature-changing chamber is provided with a first fan at an inlet of an air inlet pipe thereof, the second temperature-changing chamber is provided with a second fan at an inlet of an air inlet pipe thereof, and the first fan and the second fan are electrically connected with the controller respectively.
Preferably, an air return duct is connected to a back side of the refrigerating chamber, the refrigerating chamber is communicated with an air outlet of the air return duct, and the first evaporator and the second evaporator are respectively communicated with an air outlet of the air return duct.
Preferably, a first heat insulation layer is arranged between each temperature-changing chamber and the refrigerating chamber, and a second heat insulation layer is arranged between each temperature-changing chamber.
The embodiment of the invention has the following beneficial effects:
the refrigerator adopts at least two temperature-changing chambers which can be configured to be a freezing gear or a refrigerating gear, so that the refrigerator can be configured to be a plurality of working modes according to requirements, and the two temperature-changing chambers are taken as examples and can be configured to be refrigerating + freezing, refrigerating + freezing + refrigerating, refrigerating + freezing, so that the refrigerator has more working modes to meet the requirements of users, and the market competitiveness of the refrigerator is improved; the refrigerating units in the variable temperature chambers can provide cold for the refrigerating chamber, and compared with the prior art in which the refrigerating loop in the refrigerating chamber provides cold, the refrigerating units in the variable temperature chambers have smaller load, so that the refrigerator can stably run due to the fact that the refrigerating units break down, and the air inlet pipeline and the air door are arranged between the variable temperature chambers and the refrigerating chamber, therefore, the circulation of cold air can be realized by controlling the air door, and the refrigerating system is simple in structure and convenient to operate.
Drawings
Fig. 1 is a schematic view of a cooling mode of a related art three compartment refrigerator.
Fig. 2 is a schematic view of a cooling mode of the refrigerator according to the embodiment of the present invention.
Fig. 3 is a front view of a refrigerator in an embodiment of the present invention.
Fig. 4 is a left side view of the refrigerator of fig. 3.
Fig. 5 is a right side view of the refrigerator of fig. 3.
Fig. 6 is a schematic diagram of a refrigeration unit system of a refrigerator in an embodiment of the present invention.
In the figure: 100. a refrigerator main body; 1. a refrigerating chamber; 2. a first temperature-changing chamber; 3. a second temperature-changing chamber; 4. a compressor; 5. a condenser; 6. a one-inlet two-outlet electromagnetic valve; 7. a first capillary tube; 8. a second capillary tube; 9. a first evaporator; 10. a second evaporator; 11. a first damper; 12. a second damper; 13. a first fan; 14. and a second fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 2 to 6, in which the direction of the arrow in fig. 3 to 5 represents the circulation direction of the cool air and the direction of the arrow in fig. 6 represents the circulation direction of the refrigerant, the present embodiment provides a refrigerator including:
the refrigerator comprises a refrigerating chamber 1, a refrigerating temperature sensor and a control system, wherein the refrigerating chamber 1 is internally provided with the refrigerating temperature sensor for collecting the temperature of the refrigerating chamber 1, the refrigerating temperature sensor can monitor the temperature of the refrigerating chamber 1 in a specified interval of 3-10 ℃, and the general temperature of a freezing chamber in the refrigerator is set to-18-12 ℃;
the temperature control system comprises at least two temperature change chambers, wherein each temperature change chamber is respectively provided with a temperature change temperature sensor for collecting the temperature of the temperature change chamber, and the temperature change temperature sensors can monitor the temperature in the temperature change chambers;
the refrigeration unit is configured to provide cold air to each temperature-changing chamber, the refrigeration unit can provide cold energy to the temperature-changing chambers so that the temperature-changing chambers can meet refrigeration requirements, and the temperature-changing chambers can be configured to be a freezing gear or a refrigerating gear, so that the refrigerator can be configured to be a plurality of working modes according to requirements, for example, two temperature-changing chambers are taken as shown in fig. 2 and can be configured to be refrigerating + freezing, refrigerating + freezing + refrigerating, refrigerating + freezing, so that the refrigerator has more working modes to meet the requirements of users, and the market competitiveness of the refrigerator is improved;
the air inlet pipeline is arranged between the refrigerating chamber 1 and any one of the temperature change chambers and is configured to convey cold air in any one of the temperature change chambers to the refrigerating chamber 1, and then the cold air can enter the refrigerating chamber 1 from the temperature change chambers along the air inlet pipeline, so that the refrigerating units in the temperature change chambers can provide cold energy for the refrigerating chamber 1, and compared with the condition that the refrigerating units in the freezing chambers provide cold energy in the prior art, the refrigerating units in the temperature change chambers have smaller loads, so that the refrigerating units are prevented from being broken down, and the refrigerator can stably run;
an air door is arranged at the inlet end of the air inlet pipeline and used for opening or blocking the air inlet pipeline, so that the on-off of the air inlet pipeline can be controlled by controlling the air door, and the control of cold air is facilitated;
the controller, cold-stored temperature sensor, alternating temperature sensor, the refrigeration unit with the air door respectively with the controller electricity is connected, then cold-stored temperature sensor, alternating temperature sensor can feed back temperature signal to the controller and carry out the analysis, and the controller can correspond the refrigeration unit of control and carry out the refrigeration in each alternating temperature room simultaneously, and the controller can be controlled the air door according to the demand to realize the circulation management and control of cold air, and above-mentioned control form belongs to the conventional control means in the refrigerator field, does not expand here and describe in detail.
Based on the technical scheme, the refrigerator adopts at least two temperature change chambers which can be configured to be a freezing gear or a refrigerating gear, so that the refrigerator can be configured to be a plurality of working modes according to requirements, and the two temperature change chambers are taken as examples and can be configured to be refrigerating + freezing, refrigerating + freezing + refrigerating, refrigerating + freezing, so that the refrigerator has more working modes to meet the requirements of users, and the market competitiveness of the refrigerator is improved; the refrigerating units in the variable temperature chambers can provide cold for the refrigerating chamber 1, and compared with the prior art in which the refrigerating loop in the refrigerating chamber provides cold, the refrigerating units in the variable temperature chambers have smaller load, so that the refrigerator can stably run due to the fact that the refrigerating units break down, and the air inlet pipeline and the air door are arranged between the variable temperature chambers and the refrigerating chamber 1, therefore, the circulation of cold air can be realized by controlling the air door, and the refrigerating system is simple in structure and convenient to operate.
In the present embodiment, the refrigerating chamber 1 is provided at the top side of the refrigerator main body 100, and the number of temperature changing chambers is two, that is, a first temperature changing chamber 2 and a second temperature changing chamber 3; the first temperature-changing chamber 2 and the second temperature-changing chamber 3 are arranged at the bottom side of the refrigerating chamber 1 side by side, namely, the refrigerator adopts three chambers, and the first temperature-changing chamber 2, the second temperature-changing chamber 3 and the refrigerating chamber 1 are independently arranged chambers, so that the refrigerator is stably arranged. A first air door 11 is arranged on an air inlet pipeline of the first temperature-changing chamber 2, a second air door 12 is arranged on an air inlet pipeline of the second temperature-changing chamber 3, the first damper 11 and the second damper 12 are electrically connected to the controller, respectively, and the first temperature changing chamber 2 is taken as an example for illustration, when the first temperature changing chamber 2 is configured as a freezing gear, the first air door 11 is opened to realize that the refrigerating unit of the first temperature changing chamber 2 provides cold air for the refrigerating chamber 1, the cold air in the embodiment enters the refrigerating chamber 1 from the chamber where the first evaporator 9 at the side part of the first temperature changing chamber 2 is positioned through the air inlet pipeline, when the first temperature-changing chamber 2 is configured as a cold storage gear, the first air door 11 is closed, and the refrigeration unit provides refrigeration capacity for the first temperature-changing chamber 2, it should be noted that in this embodiment, the first air door 11 and the second air door 12 are both electric air doors, thereby enabling the controller to easily control the opening and closing of the first damper 11 and the second damper 12.
Specifically, the rear side of the first temperature-changing chamber 2 is provided with a first evaporator 9, the rear side of the second temperature-changing chamber 3 is provided with a second evaporator 10, it should be noted that the first evaporator 9 and the second evaporator 10 are respectively arranged on the refrigerator main body 100, and the two evaporators and the temperature-changing chambers are isolated from each other, in this embodiment, the first evaporator 9 is exemplarily arranged at the rear side of the first temperature-changing chamber 2, and the second evaporator 10 is arranged at the rear side of the second temperature-changing chamber 3, which are conventional arrangements in the field of refrigerators, and the refrigeration unit is configured to:
an exhaust port of the compressor 4 is connected with an inlet of a one-inlet two-outlet electromagnetic valve 6 through a condenser 5;
a first outlet of the one-inlet two-outlet electromagnetic valve 6 is connected to an air inlet of the compressor 4 through a first capillary 7 and the first evaporator 9 in sequence;
the second outlet of the one-inlet two-outlet electromagnetic valve 6 is connected to the air inlet of the compressor 4 through the second capillary tube 8 and the second evaporator 10 in sequence, and it should be noted that the refrigeration unit in this embodiment has two parallel refrigeration loops, and the two refrigeration loops are respectively: the system comprises a first evaporator 9, a compressor 4, a condenser 5, a first inlet and second outlet electromagnetic valve 6, a first capillary tube 7, a first evaporator 9, a second evaporator 10, the compressor 4, the condenser 5, the first inlet and second outlet electromagnetic valve 6, a second capillary tube and a second evaporator 10. When the first temperature-changing chamber 2 and the second temperature-changing chamber 3 both need to refrigerate, the one-inlet two-outlet electromagnetic valve 6 is controlled to make the two refrigeration loops alternatively refrigerate.
Based on the above scheme, the three cooling modes of the refrigerator in the embodiment are explained,
cooling mode 1: the refrigeration, the cold storage and the freezing are carried out, the first temperature changing chamber 2 is in a refrigeration gear, the first inlet and second outlet electromagnetic valve 6 controls the refrigerant to pass through the first capillary tube 7 and the first evaporator 9 and return to the compressor 4, the first air door 11 is closed, and the refrigeration unit provides cold energy for the first temperature changing chamber 2 and enables the first temperature changing chamber 2 to reach a preset temperature; the second temperature-changing chamber 3 is a freezing gear, the first inlet and second outlet electromagnetic valve 6 controls the refrigerant to pass through the second capillary tube 8 and the second evaporator 10 and return to the compressor 4, at the moment, the second air door 12 is opened, the refrigeration unit supplies cold for the second temperature-changing chamber 3, and cold air of the second evaporator 10 enters the refrigerating chamber 1 through an air inlet pipeline of the second temperature-changing chamber 3, so that the second temperature-changing chamber 3 and the refrigerating chamber 1 reach preset temperatures.
Cooling mode 2: the refrigerating, freezing and refrigerating are carried out, the first temperature changing chamber 2 is in a freezing gear, the first inlet and outlet electromagnetic valve 6 controls the refrigerant to pass through the first capillary tube 7 and the first evaporator 9 and return to the compressor 4, at the moment, the first air door 11 is opened, the refrigerating unit supplies cold for the first temperature changing chamber 2, cold air of the first evaporator 9 enters the refrigerating chamber 1 through an air inlet pipeline of the first temperature changing chamber 2, and the first temperature changing chamber 2 and the refrigerating chamber 1 both reach preset temperatures; the second temperature-changing chamber 3 is a refrigeration gear, the first inlet and second outlet electromagnetic valve 6 controls the refrigerant to pass through the second capillary tube 8 and the second evaporator 10 and return to the compressor 4, the second air door 12 is closed, and the refrigeration unit provides cold energy for the second temperature-changing chamber 3 and enables the second temperature-changing chamber 3 to reach a preset temperature.
Cooling mode 3: cold storage + freezing, first temperature-changing chamber 2 and second temperature-changing chamber 3 are freezing gears, the refrigeration unit is when realizing refrigeration at this moment, through opening first air door 11 and/or second air door 12, can realize that freezer 1 reaches preset temperature, first air door 11 and second air door 12 at this moment also can open in turn, it judges according to the temperature height in first temperature-changing chamber 2 and the second temperature-changing chamber 3, exemplarily, when the temperature is less than the temperature in the second temperature-changing chamber 3 in the first temperature-changing chamber 2, then open first air door 11, make first evaporimeter 9 and second evaporimeter 10 supply cold for freezer 1 in turn from this, thereby guarantee that the refrigeration operation is stable.
In this embodiment, when the first variable temperature chamber 2 is configured as a freezing gear, the first damper 11 is in an open state, the refrigeration unit provides refrigeration capacity for the first variable temperature chamber 2, the refrigeration unit corresponding to the first variable temperature chamber 2 provides refrigeration capacity for the refrigerating chamber 1, and when the first variable temperature chamber 2 is configured as a refrigerating gear, the first damper 11 is in a closed state.
When the second temperature-varying chamber 3 is configured as a freezing gear, the second air door 12 is in an open state, the refrigeration unit provides refrigeration capacity for the second temperature-varying chamber 3, the refrigeration unit corresponding to the second temperature-varying chamber 3 provides refrigeration capacity for the refrigerating chamber 1, and when the second temperature-varying chamber 3 is configured as a refrigerating gear, the second air door 12 is in a closed state.
When the first temperature-varying chamber 2 is configured as a freezing gear, and when the second temperature-varying chamber 3 is configured as a freezing gear, the first damper 11 and/or the second damper 12 are/is in an open state, both the refrigeration unit corresponding to the first temperature-varying chamber 2 and the refrigeration unit corresponding to the second temperature-varying chamber 3 can provide refrigeration capacity for the refrigerating chamber 1, and then the first damper 11 and the second damper 12 can be opened according to requirements, for example, the temperature of the refrigerating chamber 1 is higher, and the first damper 11 and the second damper 12 can be simultaneously opened, so that the refrigerating chamber 1 is rapidly cooled, and when the temperature of the refrigerating chamber 1 is close to a set value, the first damper 11 and the second damper 12 can be alternately opened.
Further, the first temperature changing chamber 2 is provided with a first fan 13 at an inlet of an air inlet pipe thereof, the second temperature changing chamber 3 is provided with a second fan 14 at an inlet of an air inlet pipe thereof, the first fan 13 and the second fan 14 are respectively electrically connected with the controller, the circulation of cold air can be smoother by arranging the first fan 13 and the second fan 14, and the cold air of the first temperature changing chamber 2 and the second temperature changing chamber 3 can better enter the refrigerating chamber 1.
Wherein, the dorsal part of walk-in 1 is connected with the return air duct, walk-in 1 with the air outlet of return air duct is linked together, first evaporimeter 9 with second evaporimeter 10 respectively with the air outlet of return air duct is linked together, two air inlet ducts of walk-in 1 respectively with first temperature-changing room 2 and second temperature-changing room 3 are linked together, the cold air circulation of walk-in has two parallelly connected return circuits: the first evaporator 9-the intake duct-the cold storage 1-the return duct-the first evaporator 9, the second evaporator 10-the intake duct-the cold storage 1-the return duct-the second evaporator 10, thus making the cold air circulation smoother.
In this embodiment, a first thermal insulation layer is disposed between each temperature-changing chamber and the refrigerating chamber 1, and a second thermal insulation layer is disposed between each temperature-changing chamber, so as to ensure that the thermal insulation effect of each compartment is good, and each compartment operates stably.
By adopting the refrigerator provided by the embodiment of the invention, the refrigerator adopts at least two temperature change chambers which can be configured as a freezing gear or a refrigerating gear, so that the refrigerator can be configured into a plurality of working modes according to requirements, and the two temperature change chambers are taken as examples and can be configured as refrigerating + freezing, refrigerating + freezing + refrigerating, refrigerating + freezing, so that the refrigerator has more working modes to meet the requirements of users, thereby improving the market competitiveness of the refrigerator; the refrigerating units in the variable temperature chambers can provide cold for the refrigerating chamber 1, and compared with the prior art in which the refrigerating loop in the refrigerating chamber provides cold, the refrigerating units in the variable temperature chambers have smaller load, so that the refrigerator can stably run due to the fact that the refrigerating units break down, and the air inlet pipeline and the air door are arranged between the variable temperature chambers and the refrigerating chamber 1, therefore, the circulation of cold air can be realized by controlling the air door, and the refrigerating system is simple in structure and convenient to operate.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1. A refrigerator, characterized by comprising:
the refrigerating chamber is internally provided with a refrigerating temperature sensor for collecting the temperature of the refrigerating chamber;
the temperature-changing chamber is internally provided with a temperature-changing temperature sensor for collecting the temperature of the temperature-changing chamber;
a cooling unit configured to supply cold air to each of the temperature-changing chambers;
the air inlet pipeline is arranged between the refrigerating chamber and any one of the temperature change chambers and is configured to convey cold air in any one of the temperature change chambers to the refrigerating chamber;
an air door is arranged at the inlet end of the air inlet pipeline and used for opening or blocking the air inlet pipeline;
and the refrigerating temperature sensor, the variable temperature sensor, the refrigerating unit and the air door are respectively electrically connected with the controller.
2. The refrigerator of claim 1, wherein the refrigerating chamber is provided at a top side of the refrigerator main body, and the number of the temperature varying chambers is two, a first temperature varying chamber and a second temperature varying chamber, respectively; the first temperature-changing chamber and the second temperature-changing chamber are located at the bottom side of the refrigerating chamber side by side.
3. The refrigerator according to claim 2, wherein a first damper is provided to the air inlet duct located in the first temperature-varying chamber, a second damper is provided to the air inlet duct located in the second temperature-varying chamber, and the first damper and the second damper are electrically connected to the controller, respectively.
4. The refrigerator according to claim 3, wherein a rear side of the first temperature changing chamber is provided with a first evaporator, a rear side of the second temperature changing chamber is provided with a second evaporator, the refrigerating unit is configured to:
the exhaust port of the compressor is connected with the inlet of the one-inlet two-outlet electromagnetic valve through the condenser;
a first outlet of the first-inlet and second-outlet electromagnetic valve is connected to an air inlet of the compressor through a first capillary tube and the first evaporator in sequence;
and a second outlet of the one-inlet and two-outlet electromagnetic valve is connected with an air inlet of the compressor through a second capillary tube and the second evaporator in sequence.
5. The refrigerator of claim 4, wherein the first damper is in an open state when the first variable temperature chamber is configured in a freezing range and the first damper is in a closed state when the first variable temperature chamber is configured in a refrigerating range.
6. The refrigerator according to claim 4, wherein the second damper is in an open state when the second variable temperature chamber is configured as a freezing range, and the second damper is in a closed state when the second variable temperature chamber is configured as a refrigerating range.
7. The refrigerator according to claim 4, wherein when the first variable temperature chamber is configured as a freezing range and when the second variable temperature chamber is configured as a freezing range, the first damper and/or the second damper is in an open state.
8. The refrigerator of claim 4, wherein the first temperature changing chamber is provided with a first fan at an inlet of an air inlet duct thereof, the second temperature changing chamber is provided with a second fan at an inlet of an air inlet duct thereof, and the first fan and the second fan are electrically connected to the controller, respectively.
9. The refrigerator as claimed in claim 4, wherein an air return duct is connected to a back side of the refrigerating chamber, the refrigerating chamber is communicated with an air outlet of the air return duct, and the first evaporator and the second evaporator are respectively communicated with the air outlet of the air return duct.
10. The refrigerator according to claim 1, wherein a first insulation layer is provided between each of the temperature-varying chambers and the refrigerating chamber, and a second insulation layer is provided between each of the temperature-varying chambers.
CN202010076070.0A 2020-01-22 2020-01-22 A kind of refrigerator Active CN111271921B (en)

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CN207815762U (en) * 2018-01-29 2018-09-04 长虹美菱股份有限公司 A kind of refrigerator refrigeration system and refrigerator
CN109764603A (en) * 2018-12-28 2019-05-17 青岛海尔股份有限公司 Refrigerator and its control method

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CN102353168A (en) * 2011-08-19 2012-02-15 海尔集团公司 Refrigerating circuit and refrigeration equipment
CN207815762U (en) * 2018-01-29 2018-09-04 长虹美菱股份有限公司 A kind of refrigerator refrigeration system and refrigerator
CN109764603A (en) * 2018-12-28 2019-05-17 青岛海尔股份有限公司 Refrigerator and its control method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115200294A (en) * 2022-08-08 2022-10-18 珠海格力电器股份有限公司 Energy storage refrigerator and power failure control method thereof

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