CN114440527A - Refrigerator and control method thereof - Google Patents

Refrigerator and control method thereof Download PDF

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Publication number
CN114440527A
CN114440527A CN202011194100.4A CN202011194100A CN114440527A CN 114440527 A CN114440527 A CN 114440527A CN 202011194100 A CN202011194100 A CN 202011194100A CN 114440527 A CN114440527 A CN 114440527A
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CN
China
Prior art keywords
freezing
air supply
temperature
refrigerating
duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011194100.4A
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Chinese (zh)
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CN114440527B (en
Inventor
刘玉民
蔡金伶
孙彬
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Application filed by Hisense Ronshen Guangdong Refrigerator Co Ltd filed Critical Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority to CN202011194100.4A priority Critical patent/CN114440527B/en
Publication of CN114440527A publication Critical patent/CN114440527A/en
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Publication of CN114440527B publication Critical patent/CN114440527B/en
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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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • 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
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The invention discloses a refrigerator and a control method thereof, relates to the technical field of storage equipment, and aims to solve the problem that a mechanical air door in the prior art cannot adjust the air inlet amount in real time. A freezing chamber, a refrigerating chamber and an air duct shell are arranged in the box body, a freezing air supply outlet and a refrigerating air supply outlet are formed in the air duct shell, a freezing air supply channel and a refrigerating air supply channel which are communicated with each other are formed in the air duct shell, the freezing air supply channel is communicated with the freezing chamber through the freezing air supply outlet, and the refrigerating air supply channel is communicated with the refrigerating chamber through the refrigerating air supply outlet; a fan and an elastic part are arranged in the freezing air supply duct, and the elastic part can be elastically deformed by the air pressure generated by the fan so as to adjust the gap between the elastic part and the inner wall of the freezing air supply duct; the refrigerator further comprises a first temperature sensor for detecting the temperature of the freezing chamber, a second temperature sensor for detecting the temperature of the refrigerating chamber, and a control module which is electrically connected with the fan, the first temperature sensor and the second temperature sensor respectively. The invention is used for storing food materials.

Description

Refrigerator and control method thereof
Technical Field
The invention relates to the technical field of storage equipment, in particular to a refrigerator and a control method thereof.
Background
The refrigerator is an electric appliance commonly used in life of people, is a refrigeration device for keeping constant low temperature, and can prolong the preservation time when the temperature of meat food reaches a freezing temperature (such as less than or equal to-18 ℃), so that the storage and preservation time of the food can be prolonged through the refrigerator.
Most of the existing refrigerators refrigerate in an air cooling mode, a refrigerating chamber and a freezing chamber are arranged inside the air cooling refrigerator, an air channel assembly is arranged in the freezing chamber, the air channel assembly comprises an air channel shell and an air channel arranged inside the air channel shell, a freezing air supply opening and a refrigerating air supply opening are further arranged on the air channel shell, a fan is arranged in the air channel, the cold energy prepared by a refrigerator compressor is respectively sent into the freezing chamber and the refrigerating chamber through the freezing air supply opening and the refrigerating air supply opening through the air blown out by the fan, so that the temperature in the freezing chamber and the refrigerating chamber is reduced, the air cooling refrigerator generally requires to be at the ambient temperature of 10-43 ℃, the refrigerator can simultaneously meet the temperature of the refrigerating chamber between 0-4 ℃, and the temperature of the freezing chamber is less than or equal to-18 ℃.
For the cold volume distribution proportion of adjusting freezer and walk-in, prior art's refrigerator has set up mechanical air door in cold-stored supply air outlet department, through user's manual regulation mechanical air door, can change the size of cold-stored supply air outlet, when the size of cold-stored supply air outlet increases or reduces, the corresponding increase of the air supply volume through cold-stored supply air outlet or reduction, the cold volume of sending into the walk-in also correspondingly increases or reduces, because the cold volume total amount of refrigerator compressor preparation is unchangeable, therefore, the cold volume of sending into the freezer correspondingly reduces or increases, thereby can adjust the cold volume distribution proportion of walk-in and freezer.
However, the mechanical air door is manually adjusted by a user, after the mechanical air door is adjusted, the air supply volume sent into the storage chamber becomes a fixed value, namely, the cold quantity distribution proportion between the refrigerating chamber and the freezing chamber is unchanged, if the temperature in the refrigerating chamber is too low or too high, and the user does not adjust the size of the mechanical air door in time, the fresh-keeping and storage effects of food materials can be influenced.
Disclosure of Invention
The embodiment of the invention provides a refrigerator and a control method thereof, which can detect the temperature of a storage chamber in real time, adjust the air supply quantity of the storage chamber and accurately control the temperature of the storage chamber, thereby ensuring the fresh-keeping and storage effects of food materials.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
an embodiment of an aspect of the present invention provides a refrigerator, including:
a box body, wherein a freezing chamber and a refrigerating chamber are arranged inside the box body;
the air duct shell is arranged in the box body, a freezing air supply outlet and a refrigerating air supply outlet are formed in the air duct shell, a freezing air supply duct and a refrigerating air supply duct are formed in the air duct shell, one end of the freezing air supply duct is communicated with one end of the refrigerating air supply duct, the other end of the freezing air supply duct is communicated with the freezing chamber through the freezing air supply outlet, and the other end of the refrigerating air supply duct is communicated with the refrigerating chamber through the refrigerating air supply outlet;
the fan is arranged in the freezing air supply duct;
the elastic piece is arranged in the freezing air supply duct, the elastic piece is arranged between the fan and the refrigerating air supply outlet or between the fan and the freezing air supply outlet, and the wind pressure generated by the fan can enable the elastic piece to generate elastic deformation so as to adjust the gap between the elastic piece and the inner wall of the freezing air supply duct;
a first temperature sensor for detecting a temperature of the freezing chamber;
a second temperature sensor for detecting a temperature of the refrigerating compartment;
and the control module is electrically connected with the fan, and the first temperature sensor and the second temperature sensor are electrically connected with the signal input end of the control module.
The refrigerator provided by the embodiment of the invention has the advantages that the freezing air supply duct and the refrigerating air supply duct which are mutually communicated are arranged in the air duct shell, the freezing air supply port arranged on the air duct shell can be communicated with the freezing air supply duct and the freezing chamber, the refrigerating air supply port can be communicated with the refrigerating air supply duct and the refrigerating chamber, the fan is arranged in the freezing air supply duct, so that air can be supplied to the freezing chamber and the refrigerating chamber, refrigeration is realized, an elastic part is arranged in the freezing air supply duct and is arranged between the fan and the refrigerating air supply port or between the fan and the freezing air supply port, the air supply pressure of the fan can enable the elastic part to generate elastic deformation, when the elastic part generates elastic deformation, a gap between the elastic part and the inner wall of the freezing air supply duct can be changed, so that the air supply quantity of the refrigerating chamber or the freezing chamber can be adjusted, namely, the cold quantity distribution example of the refrigerating chamber and the freezing chamber is adjusted, whereby the temperatures of the freezing chamber and the refrigerating chamber can be adjusted; compared with the prior art, this application detects the temperature of freezer and walk-in respectively and sends to control module through first temperature sensor and second temperature sensor, control module controls the wind speed of fan according to the temperature of freezer and walk-in, make elastic component take place elastic deformation, in order to adjust the clearance between the inner wall of elastic component and freezing air supply duct, adjust the air output of freezer and the air output of walk-in promptly, also be exactly the cold volume distribution ratio of regulation freezer and walk-in, thereby can adjust the temperature of walk-in and freezer in real time, do not need the user to manually adjust, avoid the walk-in or the great condition of temperature fluctuation to appear in the freezer, be favorable to improving the fresh-keeping and the storage effect of eating the material.
In some embodiments of the invention, the elastic piece is a spring piece, the length direction of the spring piece is parallel to the rear wall of the box body, and the width direction of the spring piece is perpendicular to the rear wall of the box body;
when the rotating speed of the fan is increased, at least one end of the elastic sheet is bent along the air supply direction of the fan, and the gap between the end part of the elastic sheet and the side wall of the adjacent freezing air supply duct is increased;
when the rotating speed of the fan is reduced, the end part of the elastic sheet is reset, and the gap between the end part of the elastic sheet and the side wall of the adjacent freezing air supply duct is reduced.
In some embodiments of the present invention, a protrusion is disposed in the freezing air supply duct, the protrusion is disposed between the fan and the cold storage air supply outlet or disposed between the fan and the freezing air supply outlet, the protrusion divides the freezing air supply duct into a first air duct and a second air duct which are connected in parallel, one end of each of the first air duct and the second air duct is communicated with the cold storage air supply duct, the other end of each of the first air duct and the second air duct is communicated with the freezing air supply outlet, the middle portion of the elastic piece is fixed on the protrusion, and two end portions of the elastic piece are respectively located in the first air duct and the second air duct.
In some embodiments of the invention, the freezing chamber is arranged above the refrigerating chamber, the air duct shell is arranged in the freezing chamber, the freezing air supply outlet is arranged at the upper part of the air duct shell and on the surface of the air duct shell far away from the rear wall of the freezing chamber, and the refrigerating air supply outlet is arranged on the bottom surface of the air duct shell.
In some embodiments of the present invention, the air duct casing includes a front cover plate and a rear cover plate, the front cover plate and the rear cover plate are fixed to each other in a clamping manner, and the freezing air supply outlet and the refrigerating air supply outlet are both disposed on the front cover plate.
Another embodiment of the present invention further provides a control method of the refrigerator, where the control method includes the following steps:
detecting the freezing temperature of the freezing chamber and the refrigerating temperature of the refrigerating chamber in real time;
judging whether the freezing temperature is in a first temperature interval or not and whether the refrigerating temperature is in a second temperature interval or not;
when the freezing temperature is not in the first temperature interval or the refrigerating temperature is not in the second temperature interval, adjusting the rotating speed of the fan to enable the elastic piece to generate elastic deformation and adjust a gap between the elastic piece and the inner wall of the freezing air supply duct so as to adjust the proportion between the air supply quantity of the freezing chamber and the air supply quantity of the refrigerating chamber, and enable the freezing temperature to be in the first temperature interval and the refrigerating temperature to be in the second temperature interval;
and when the freezing temperature is in the first temperature interval and the refrigerating temperature is in the second temperature interval, the fan normally operates.
The control method provided by the embodiment of the invention comprises the steps of firstly detecting the freezing temperature of a freezing chamber and the refrigerating temperature of a refrigerating chamber in real time, then judging whether the freezing temperature is in a first temperature interval or not, judging whether the refrigerating temperature is in a second temperature interval or not, adjusting the wind speed of a fan to enable an elastic piece to generate elastic deformation and change a gap between the elastic piece and the inner wall of a freezing air supply duct when the freezing temperature is not in the first temperature interval or the refrigerating temperature is not in the second temperature interval, so as to adjust the air supply quantity of the freezing chamber and the air supply quantity of the refrigerating chamber, namely adjusting the cold distribution proportion of the freezing chamber and the refrigerating chamber, so that the freezing temperature is in the first temperature interval and the refrigerating temperature is in the second temperature interval, thereby adjusting the temperatures of the freezing chamber and the refrigerating chamber in real time and avoiding the condition that the freezing temperature or the refrigerating temperature has larger fluctuation, is beneficial to improving the fresh-keeping and storage effects of the food materials.
In some embodiments of the present invention, the method for adjusting the rotation speed of the fan includes the following steps:
when the freezing temperature is lower than the first temperature range, the wind speed of the fan is increased, so that the elastic piece is elastically deformed, and the gap between the elastic piece and the inner wall of the freezing air supply duct is increased;
when the freezing temperature is higher than the first temperature interval, the wind speed of the fan is reduced, the elastic piece is reset, and the gap between the elastic piece and the inner wall of the freezing air supply duct is reduced.
In some embodiments of the present invention, the method for adjusting the rotational speed of the fan further includes the following steps:
when the freezing temperature is in the first temperature range and the refrigerating temperature is higher than the second temperature range, the wind speed of the fan is increased, the elastic piece is elastically deformed, and the gap between the elastic piece and the inner wall of the freezing air supply duct is increased;
when the freezing temperature is in the first temperature interval and the refrigerating temperature is lower than the second temperature interval, the wind speed of the fan is reduced, the elastic piece is reset, and the gap between the elastic piece and the inner wall of the freezing air supply duct is reduced.
In some embodiments of the present invention, the standard temperature of the freezing chamber is a ℃, and the first temperature interval is a ± 3 ℃.
In some embodiments of the present invention, the standard temperature of the refrigerating chamber is b ℃ and the second temperature interval is b ± 3 ℃.
Drawings
Fig. 1 is a schematic view of an overall structure of a refrigerator according to an embodiment of the present invention;
FIG. 2 is an exploded view of the air duct housing and internal structure provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control system of a control module according to an embodiment of the present invention;
FIG. 4 is a perspective view of a duct housing (not shown with a back cover) according to an embodiment of the present invention;
fig. 5 is a schematic structural view illustrating an initial state of the elastic piece when the blower in the refrigerating air supply duct provided by the embodiment of the present invention is not rotated;
fig. 6 is a schematic structural view of the shrapnel in the contraction section when the fan in the refrigerating air supply duct starts to rotate according to the embodiment of the present invention;
fig. 7 is a schematic structural view illustrating a structure in which the elastic sheet is bent to a maximum position when the rotational speed of the fan in the refrigerating air duct is maximum according to the embodiment of the present invention;
FIG. 8 is a flowchart of a control method according to an embodiment of the present invention;
FIG. 9 is a flowchart of an embodiment of a method for adjusting a rotational speed of a fan according to the present disclosure;
fig. 10 is a flowchart of a method for adjusting a rotational speed of a fan according to another embodiment of the present invention.
Reference numerals: 100. a box body; 110. a freezing chamber; 120. a refrigerating chamber; 121. an electronic knob; 200. a door body; 300. an air duct housing; 310. a freezing air supply outlet; 320. a refrigerating air supply outlet; 330. a front cover plate; 340. a rear cover plate; 400. air duct foam; 410. a refrigerating air supply duct; 411. a protrusion; 412. a first air duct; 413. a second air duct; 414. a contraction section; 420. a refrigerating air supply duct; 421. a mechanical damper; 600. a fan; 700. a control module; 800. a first temperature sensor; 900. a second temperature sensor.
Detailed Description
A refrigerator and a control method according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a structural view of an embodiment of a refrigerator according to the present invention, which has an approximately rectangular parallelepiped shape. The refrigerator has an external appearance defined by a storage chamber defined as a cabinet 100 having an opening, and a plurality of door bodies 200 provided in the storage chamber 101, the storage chamber 101 being vertically partitioned into an upper freezing chamber 110 and a lower refrigerating chamber 120. Each of the partitioned spaces may have an independent storage space.
As shown in fig. 1, an air duct casing 300 is disposed inside the box 100 according to an embodiment of the present invention, as shown in fig. 2, a freezing air supply outlet 310 and a refrigerating air supply outlet 320 are disposed on the air duct casing 300, air duct foam 400 is disposed in the air duct casing 300, a freezing air supply duct 410 and a refrigerating air supply duct 420 are formed on the air duct foam 400, one end of the freezing air supply duct 410 is communicated with one end of the refrigerating air supply duct 420, the other end of the freezing air supply duct 410 is communicated with the freezing chamber 110 through the freezing air supply outlet 310, and the other end of the refrigerating air supply duct 420 is communicated with the refrigerating chamber 120 through the refrigerating air supply outlet 320.
The fan 600 is disposed in the freezing air duct 410, so that the cooling energy prepared by the compressor of the refrigerator is respectively sent into the freezing chamber 110 and the refrigerating chamber 120 through the fan 600, the temperature of the freezing chamber 110 and the refrigerating chamber 120 is reduced, and the food materials are frozen and stored or refrigerated and preserved.
Still be provided with the elastic component in freezing wind channel, the elastic component set up in fan 600 with between the cold-stored supply-air outlet 320 or the elastic component set up in fan 600 with between the freezing supply-air outlet 310, the wind pressure that fan 600 produced can make elastic deformation takes place for the elastic component to adjust the clearance between the inner wall of elastic component and freezing supply-air outlet 410. The elastic member is provided between the blower fan 600 and the refrigerating air supply outlet 320 in this application for detailed description.
In the refrigerator provided by the embodiment of the invention, the freezing air supply duct 410 and the refrigerating air supply duct 420 which are mutually communicated are arranged in the air duct shell 300 of the air duct component, the freezing air supply outlet 310 arranged on the air duct shell 300 can be communicated with the freezing air supply duct 410 and the freezing chamber 110, the refrigerating air supply outlet 320 can be communicated with the refrigerating air supply duct 420 and the refrigerating chamber 120, and the fan 600 is arranged in the freezing air supply duct 410, so that air can be supplied to the freezing chamber 110 and the refrigerating chamber 120 and refrigeration can be realized, in the application, an elastic member is arranged in the freezing air supply duct 410 and is arranged between the fan 600 and the refrigerating air supply duct 420, the air supply pressure of the fan 600 can enable the elastic member to generate elastic deformation, when the elastic member generates elastic deformation, the gap between the elastic member and the inner wall of the freezing air supply duct 410 can be changed, namely the air supply quantity of the refrigerating chamber 120 is changed, namely the cold quantity distribution ratio of the refrigerating chamber 120 and the freezing chamber 110 is changed, so that the temperatures of the freezing compartment 110 and the refrigerating compartment 120 can be adjusted.
As shown in fig. 1, 2 and 3, a first temperature sensor 800 for detecting a temperature is provided in the freezing compartment 110, and a second temperature sensor 900 for detecting a temperature is provided in the refrigerating compartment 120.
The refrigerator provided by the application further comprises a control module 700, the signal output end of the control module 700 is electrically connected with the signal input end of the fan 600, and the first temperature sensor 800 and the second temperature sensor 900 are electrically connected with the signal input end of the control module 700.
Compared with the prior art, the refrigerator that this application provided compares in prior art, detect the temperature of freezer 110 and walk-in 120 respectively and send to control module 700 through first temperature sensor 800 and second temperature sensor 900, control module 700 controls the wind speed of fan 600 according to the temperature of freezer 110 and walk-in 120, make elastic component take place elastic deformation, in order to adjust the clearance between the inner wall of elastic component and freezing air supply duct 410, adjust the air output of freezer 110 and the air output of walk-in 120 promptly, also be exactly adjust the cold volume distribution proportion of freezer 110 and walk-in 120, thereby can carry out automatically regulated to the temperature of walk-in 120 and freezer 110 in real time, do not need the user to adjust manually, avoid appearing the great condition of temperature fluctuation in walk-in 120 or freezer 110, be favorable to improving the fresh-keeping and the storage effect of eating the material.
As shown in fig. 1 and 4, the elastic member provided in the present application is an elastic sheet 500, a length direction of the elastic sheet 500 is parallel to a rear wall of the box 100, and a width direction of the elastic sheet 500 is perpendicular to the rear wall of the box 100, when the rotation speed of the fan 600 increases, at least one end of the elastic sheet 500 is bent along an air supply direction of the fan 600, and a gap between an end of the elastic sheet 500 and a side wall of the adjacent freezing air supply duct 410 increases; when the rotation speed of the blower 600 is reduced, the end of the spring 500 is restored and the gap between the end of the spring 500 and the adjacent side wall of the freezing air duct 410 is reduced. When increasing fan 600 pivoted rotational speed, make shell fragment 500 take place to buckle, thereby make the clearance between the lateral wall of shell fragment 500 and the freezing cold air duct increase, the size of the ventilation cross-section in freezing supply air duct 410 has been increased promptly, thereby can increase the air supply volume of walk-in 120, when reducing fan 600 rotational speed, because the wind pressure that acts on the shell fragment 500 reduces, consequently, shell fragment 500 resets, make the distance between the tip of shell fragment 500 and the lateral wall of freezing supply air duct 410 reduce, the size of the ventilation cross-section in the freezing air duct has been reduced promptly, thereby can adjust the air supply volume of walk-in 120 through shell fragment 500, adjust the cold volume distribution proportion of walk-in 120 and freezer 110 promptly.
In some embodiments, the elastic sheet 500 may have one end fixed to a side wall of the freezing air duct 410 and the other end freely disposed near the other side wall opposite to the freezing air duct 410. Therefore, when the fan 600 blows air, the free end of the spring plate 500 can be bent, and the distance between the free end of the spring plate 500 and the side wall of the freezing air blowing duct 410 adjacent to the free end can be increased in the bending process.
In some embodiments, as shown in fig. 1 and 4, a protrusion 411 may also be disposed in the freezing air duct 410, the protrusion 411 is disposed between the fan 600 and the refrigerating air duct 420, the protrusion 411 divides the freezing air duct 410 into a first air duct 412 and a second air duct 413 which are connected in parallel, one end of each of the first air duct 412 and the second air duct 413 is communicated with the refrigerating air duct 420, the other end of each of the first air duct 412 and the second air duct 413 is communicated with the freezing air outlet 310, the middle portion of the elastic sheet 500 is fixed on the protrusion 411, and two end portions of the elastic sheet 500 are respectively disposed in the first air duct 412 and the second air duct 413. Because both ends of the elastic sheet 500 are freely arranged and are respectively arranged in the first air duct 412 and the second air duct 413, when the fan 600 supplies air, cold air respectively enters the cold storage air supply duct 420 from the first air duct 412 and the second air duct 413 and enters the refrigerating chamber 120 through the cold storage air supply port 320, the two end parts of the elastic sheet 500 can be bent by the air pressure of the fan 600, so that the size of the ventilation section in the first air duct 412 and the second air duct 413 can be adjusted, compared with the case of only arranging one air duct, the air supply quantity of the refrigerating chamber 120 can be increased by dividing the freezing air supply duct 410 into the first air duct 412 and the second air duct 413, the requirement of the refrigerating chamber 120 can be met more quickly, and the refrigerating chamber 120 can be cooled rapidly.
In some embodiments, as shown in fig. 1 and 4, the side walls of the first air duct 412 and the second air duct 413 opposite to the protrusion 411 are provided with a contracting section 414, the contracting section 414 gradually reduces the cross sections of the first air duct 412 and the second air duct 413 along the air supply direction of the fan 600, the end of the contracting section 414 along the air supply direction is connected to the refrigerating air supply duct 420, when the elastic sheet 500 is in the initial state, that is, the fan 600 does not rotate, the end of the elastic sheet 500 is located at the contracting section 414, when the fan 600 starts to rotate, the elastic sheet 500 bends along the air supply direction, because the cross section of the contracting section 414 gradually reduces, the distance between the elastic sheet 500 and the contracting sections 414 of the first air duct 412 and the second air duct 413 is unchanged, thereby avoiding the air pressure from fluctuating and causing the air supply quantity to be unstable when the wind speed of the fan 600 is low, and when the end of the elastic sheet 500 passes over the contracting section 414, the ventilation sections in the first air path 412 and the second air path 413 are gradually increased.
When the fan 600 does not rotate, as shown in fig. 5, the elastic sheet 500 is at an initial position, that is, the beginning end of the contraction section 414 along the air supply direction, when the fan 600 starts to rotate, as shown in fig. 6, the elastic sheet 500 is bent, but still located in the contraction section 414, fig. 6 shows that the elastic sheet 500 is bent to the end of the contraction section 414 along the air supply direction, when the fan 600 gradually increases the rotation speed, as shown in fig. 7, the elastic sheet 500 continues to be bent and crosses the end of the contraction section 414, fig. 7 shows that the rotation speed of the fan 600 increases to the maximum, the position of the elastic sheet 500 is located, and at this time, the distance between the elastic sheet 500 and the inner wall of the freezing air supply duct 410 is the maximum, that is, the air supply amount is the maximum.
In some embodiments, as shown in fig. 4, a mechanical damper 421 may be further disposed at the refrigerating air supply duct 420 provided by the present application, so that a user can adjust the air supply amount of the refrigerating air supply duct 420 manually, and the air supply amount can be controlled more accurately in cooperation with the elastic sheet 500 and the fan 600, which is beneficial to further improving the storage and preservation effects of the refrigerator.
The position between the freezing chamber 110 and the refrigerating chamber 120 provided by the present application is not unique, the freezing chamber 110 may be disposed below the refrigerating chamber 120, and the freezing chamber 110 may also be disposed above the refrigerating chamber 120, in the present application, as shown in fig. 1 and fig. 2, the freezing chamber 110 is disposed above the refrigerating chamber 120 as an example, the air duct housing 300 of the air duct assembly is disposed in the freezing chamber 110, the freezing air supply outlet 310 is disposed on the upper portion of the air duct housing 300 and is disposed on a surface of the air duct housing 300 away from the rear wall of the freezing chamber 110, and the refrigerating air supply outlet 320 is disposed on a bottom surface of the air duct housing 300. Because the cold air is heavy, the freezing air supply outlet 310 is arranged at the upper part of the air duct shell 300, so that the cold air can circularly flow from top to bottom, and the refrigerating air supply outlet 320 is arranged at the bottom surface of the air duct shell 300, so that the cold air is supplied into the refrigerating chamber 120 from top to bottom, the temperature distribution of the storage space in the freezing chamber 110 and the refrigerating chamber 120 is ensured to be uniform, and dead corners with high local temperature in the freezing chamber 110 or the refrigerating chamber 120 are avoided.
In some embodiments, the air duct housing 300 may be fixed to a rear wall of the freezing chamber 110, or the air duct housing 300 may be fixedly connected to two opposite side walls of the freezing chamber 110, respectively, and the fixing manner of the air duct housing 300 is not particularly limited.
In some embodiments, as shown in fig. 1 and 2, the air duct casing 300 provided by the present application includes a front cover plate 330 and a rear cover plate 340, the front cover plate 330 and the rear cover plate 340 are fastened to each other, and the freezing air supply outlet 310 and the refrigerating air supply outlet 320 are both disposed on the front cover plate 330. The front cover plate 330 and the rear cover plate 340 which are fixed in a clamped mode form the air duct shell 300, so that the air duct foam 400 can be conveniently filled in the air duct shell, the air duct and other structures can be conveniently arranged, the air duct shell 300 is divided into the front cover plate 330 and the rear cover plate 340, injection molding is convenient, and the production difficulty is favorably reduced.
The present application further provides a control method of the refrigerator, as shown in fig. 8, the control method includes the steps of: detecting the freezing temperature of the freezing chamber 110 and the refrigerating temperature of the refrigerating chamber 120 in real time; judging whether the freezing temperature is in a first temperature interval or not and whether the refrigerating temperature is in a second temperature interval or not; when the freezing temperature is not in the first temperature interval or the refrigerating temperature is not in the second temperature interval, adjusting the rotation speed of the fan 600 to make the elastic member elastically deformed and change the gap between the elastic member and the inner wall of the freezing air duct 410 so as to adjust the ratio between the air supply amount of the freezing chamber 110 and the air supply amount of the refrigerating chamber 120, so that the freezing temperature is in the first temperature interval and the refrigerating temperature is in the second temperature interval; when the freezing temperature is in the first temperature interval and the refrigerating temperature is in the second temperature interval, the blower 600 operates normally.
The control method provided by the embodiment of the invention comprises the steps of firstly detecting the freezing temperature of the freezing chamber 110 and the refrigerating temperature of the refrigerating chamber 120 in real time, then judging whether the freezing temperature is in a first temperature interval or not, judging whether the refrigerating temperature is in a second temperature interval or not, when the freezing temperature is not in the first temperature interval or the refrigerating temperature is not in the second temperature interval, adjusting the wind speed of the fan 600 to enable the elastic piece to generate elastic deformation and change the gap between the elastic piece and the inner wall of the freezing air duct 410 so as to adjust the air supply quantity of the freezing chamber 110 and the air supply quantity of the refrigerating chamber 120, namely adjusting the cold distribution proportion of the freezing chamber 110 and the refrigerating chamber 120, so that the freezing temperature is in the first temperature interval and the refrigerating temperature is in the second temperature interval, thereby adjusting the temperatures of the freezing chamber 110 and the refrigerating chamber 120 in real time and avoiding the situation that the freezing temperature or the refrigerating temperature has large fluctuation, is beneficial to improving the fresh-keeping and storage effects of food materials.
As shown in fig. 9, the method for adjusting the rotation speed of the fan 600 in the present application includes the following steps: when the freezing temperature is lower than the first temperature range, the rotating speed of the fan 600 is increased to enable the elastic member to generate elastic deformation so as to increase the gap between the elastic member and the inner wall of the freezing air supply duct 410; when the freezing temperature is higher than the first temperature range, the rotation speed of the fan 600 is reduced to reset the elastic member, so as to reduce the gap between the elastic member and the inner wall of the freezing air duct 410. That is, when the temperature of the freezing compartment 110 is low, the rotation speed of the fan 600 is increased, so that the gap between the elastic member and the inner wall of the freezing air supply duct 410 is increased to increase the air supply amount of the refrigerating compartment 120, that is, the cooling capacity of the refrigerating compartment 120 is increased, because the total amount of cooling capacity prepared by the refrigerator compressor is not changed, the cooling capacity sent into the freezing compartment 110 is correspondingly reduced, so that the temperature of the freezing compartment 110 is appropriately increased, when the temperature of the freezing compartment 110 is high, the rotation speed of the fan 600 is reduced, so that the gap between the elastic member and the inner wall of the freezing air supply duct 410 is reduced to reduce the air supply amount of the refrigerating compartment 120, that is, the cooling capacity of the refrigerating compartment 120 is reduced, so that the cooling capacity of the freezing compartment 110 can be increased, and the temperature of the freezing compartment 110 can be reduced, that the temperatures of the freezing compartment 110 and the refrigerating compartment 120 can be adjusted by adjusting the cooling capacity distribution ratio of the freezing compartment 110 and the refrigerating compartment 120.
Specifically, when the freezing temperature is higher than the first temperature interval, there may be three cases where the refrigerating temperature is lower than, within, or higher than the second temperature interval, and when the refrigerating temperature is lower than or within the second temperature interval, the rotation speed of the fan 600 is reduced, so that the amount of cold fed into the refrigerating compartment 120 can be reduced and the amount of cold fed into the freezing compartment 110 can be increased, so that the freezing temperature is lowered and the refrigerating temperature is raised, or a small amount of cold is fed into the refrigerating compartment 120 so as to maintain the temperature, so that the freezing temperature is adjusted to be within the first temperature interval and the refrigerating temperature is adjusted or maintained within the second temperature interval; when the refrigerating temperature is higher than the second temperature interval, namely, the temperatures of the refrigerating chamber 120 and the freezing chamber 110 are both too high, and cold quantity needs to be increased, at the moment, the freezing food materials stored in the freezing chamber 110 are easy to melt, so that the rotating speed of the fan 600 is firstly reduced, the cold quantity in the freezing chamber 110 is increased, the refrigerating temperature of the freezing chamber 110 is firstly reduced to the first temperature interval, and then the refrigerating temperature of the refrigerating chamber 120 is adjusted.
When the freezing temperature is lower than the first temperature interval, the refrigerating temperature also has three conditions, namely, the freezing temperature is lower than the second temperature interval, is in the second temperature interval and is higher than the second temperature interval, and when the refrigerating temperature is higher than the second temperature interval or is in the second temperature interval, the rotating speed of the fan 600 is increased, so that the cold energy sent into the refrigerating chamber 120 can be increased, the cold energy of the freezing chamber 110 can be reduced, the freezing temperature is increased, the refrigerating temperature is reduced, and the freezing temperature is adjusted to be in the first temperature interval and the refrigerating temperature is adjusted or kept in the second temperature interval; when the refrigerating temperature is lower than the second temperature interval, that is, the temperatures of the refrigerating chamber 120 and the freezing chamber 110 are both too low, and the cooling capacity needs to be reduced, at this time, the compressor is stopped, that is, the freezing temperature of the freezing chamber 110 is increased to the first temperature interval, and the refrigerating temperature of the refrigerating chamber 120 is increased to the second temperature interval.
As shown in fig. 10, the method for adjusting the rotation speed of the fan 600 provided by the present application further includes the following steps: when the freezing temperature is in the first temperature range and the refrigerating temperature is greater than the second temperature range, increasing the wind speed of the fan 600 to elastically deform the elastic member, so as to increase the gap between the elastic member and the inner wall of the freezing air supply duct 410; when the freezing temperature is in the first temperature range and the refrigerating temperature is less than the second temperature range, the wind speed of the fan 600 is reduced, so that the elastic member is reset, and the gap between the elastic member and the inner wall of the freezing air supply duct 410 is reduced. When freezing temperature is in first temperature interval, there are two kinds of condition in cold-stored temperature, cold-stored temperature is higher than second temperature interval and cold-stored temperature is less than the second temperature interval promptly, when cold-stored temperature is higher than the second temperature interval, cold volume needs to be increased promptly for walk-in 120, at this moment, increase fan 600 rotational speed, increase send into the cold volume of walk-in 120 can, when the temperature of walk-in 120 is less than the second temperature interval, walk-in 120 temperature is too low promptly, at this moment, reduce fan 600 rotational speed, it can to reduce the cold volume of sending into walk-in 120.
The utility model provides a refrigerator is through the freezing temperature of real-time detection freezer 110 and the cold-stored temperature of walk-in 120, and judge whether freezing temperature is in first temperature interval and cold-stored temperature is in the second temperature interval, then adjust fan 600 rotational speed according to cold-stored temperature and freezing temperature's height, make shell fragment 500 take place to buckle or reset, clearance distance between the inner wall of control shell fragment 500 and freezing air supply duct 410, thereby adjust the air supply volume of walk-in 120, and then adjust the cold volume ratio of walk-in 120 and freezer 110, finally realize carrying out real-time adjustment to the temperature of walk-in 120 and freezer 110, be favorable to improving the storage and the fresh-keeping effect of refrigerator.
In some embodiments, the standard temperature of the freezing compartment 110 is a deg.C, the first temperature zone is a + -3 deg.C, the standard temperature of the refrigerating compartment 120 is b deg.C, and the second temperature zone is b + -3 deg.C. The standard temperature of the freezing chamber 110 and the standard temperature of the refrigerating chamber 120 are floated by 3 ℃ to serve as a first temperature interval and a second temperature interval, namely the storage and preservation effects of the food materials are not influenced in the range of 3 ℃ above and below the standard temperature.
The application provides a refrigerator can set up a plurality of gears through electron knob 121, each gear all has the standard temperature of freezer room 110 and the standard temperature of walk-in 120 that correspond, control module 700 can adjust the temperature of freezer room 110 and walk-in 120 according to this standard temperature, therefore, when ambient temperature is higher, for example summer, the user can adjust the gear to the lower gear of standard temperature, when ambient temperature is lower, for example winter, can never adjust the gear to the higher gear of standard temperature, thereby avoid ambient temperature to lead to the temperature of walk-in 120 or freezer room 110 to be higher or lower, influence the storage and the fresh-keeping effect of edible material.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A refrigerator, characterized by comprising:
a box body, wherein a freezing chamber and a refrigerating chamber are arranged inside the box body;
the air duct shell is arranged in the box body, a freezing air supply outlet and a refrigerating air supply outlet are formed in the air duct shell, a freezing air supply duct and a refrigerating air supply duct are formed in the air duct shell, one end of the freezing air supply duct is communicated with one end of the refrigerating air supply duct, the other end of the freezing air supply duct is communicated with the freezing chamber through the freezing air supply outlet, and the other end of the refrigerating air supply duct is communicated with the refrigerating chamber through the refrigerating air supply outlet;
the fan is arranged in the freezing air supply duct;
the elastic piece is arranged in the freezing air supply duct, the elastic piece is arranged between the fan and the refrigerating air supply outlet or between the fan and the freezing air supply outlet, and the wind pressure generated by the fan can enable the elastic piece to generate elastic deformation so as to adjust the gap between the elastic piece and the inner wall of the freezing air supply duct;
a first temperature sensor for detecting a temperature of the freezing chamber;
a second temperature sensor for detecting a temperature of the refrigerating compartment;
and the control module is electrically connected with the fan, and the first temperature sensor and the second temperature sensor are electrically connected with the signal input end of the control module.
2. The refrigerator according to claim 1, wherein the elastic member is a spring, a length direction of the spring is parallel to a rear wall of the refrigerator body and a width direction of the spring is perpendicular to the rear wall of the refrigerator body;
when the rotating speed of the fan is increased, at least one end of the elastic sheet is bent along the air supply direction of the fan, and the gap between the end part of the elastic sheet and the side wall of the adjacent freezing air supply duct is increased;
when the rotating speed of the fan is reduced, the end part of the elastic sheet is reset, and the gap between the end part of the elastic sheet and the side wall of the adjacent freezing air supply duct is reduced.
3. The refrigerator according to claim 2, wherein a protrusion is provided in the freezing air supply duct, the protrusion is provided between the fan and the refrigerating air supply outlet or between the fan and the freezing air supply outlet, the protrusion divides the freezing air supply duct into a first air duct and a second air duct which are connected in parallel, one end of each of the first air duct and the second air duct is communicated with the refrigerating air supply duct, the other end of each of the first air duct and the second air duct is communicated with the freezing air supply outlet, the middle portion of the elastic piece is fixed on the protrusion, and two end portions of the elastic piece are respectively located in the first air duct and the second air duct.
4. The refrigerator according to any one of claims 1 to 3, wherein the freezing chamber is disposed above the refrigerating chamber, the duct housing is disposed in the freezing chamber, the freezing air supply port is disposed at an upper portion of the duct housing and on a surface of the duct housing remote from a rear wall of the freezing chamber, and the refrigerating air supply port is disposed on a bottom surface of the duct housing.
5. The refrigerator as claimed in claim 4, wherein the duct housing includes a front cover plate and a rear cover plate, the front cover plate and the rear cover plate are fixed to each other in a snap-fit manner, and the freezing air supply outlet and the refrigerating air supply outlet are both disposed on the front cover plate.
6. A control method of a refrigerator according to any one of claims 1 to 5, characterized in that the control method comprises the steps of:
detecting the freezing temperature of the freezing chamber and the refrigerating temperature of the refrigerating chamber in real time;
judging whether the freezing temperature is in a first temperature interval or not and whether the refrigerating temperature is in a second temperature interval or not;
when the freezing temperature is not in the first temperature interval or the refrigerating temperature is not in the second temperature interval, adjusting the rotating speed of the fan to enable the elastic piece to generate elastic deformation and adjust a gap between the elastic piece and the inner wall of the freezing air supply duct so as to adjust the proportion between the air supply quantity of the freezing chamber and the air supply quantity of the refrigerating chamber, and enable the freezing temperature to be in the first temperature interval and the refrigerating temperature to be in the second temperature interval;
and when the freezing temperature is in the first temperature interval and the refrigerating temperature is in the second temperature interval, the fan normally operates.
7. The control method according to claim 6, wherein the method of adjusting the rotational speed of the fan comprises the steps of:
when the freezing temperature is lower than the first temperature range, the wind speed of the fan is increased, so that the elastic part is elastically deformed, and the gap between the elastic part and the inner wall of the freezing air supply duct is increased;
when the freezing temperature is higher than the first temperature interval, the wind speed of the fan is reduced, the elastic piece is reset, and the gap between the elastic piece and the inner wall of the freezing air supply duct is reduced.
8. The control method according to claim 6 or 7, wherein the method of adjusting the rotational speed of the fan further comprises the steps of:
when the freezing temperature is in the first temperature range and the refrigerating temperature is higher than the second temperature range, the wind speed of the fan is increased, the elastic piece is elastically deformed, and the gap between the elastic piece and the inner wall of the freezing air supply duct is increased;
when the freezing temperature is in the first temperature interval and the refrigerating temperature is lower than the second temperature interval, the wind speed of the fan is reduced, the elastic piece is reset, and the gap between the elastic piece and the inner wall of the freezing air supply duct is reduced.
9. The control method as set forth in claim 6, wherein the standard temperature of the freezing chamber is a C and the first temperature zone is a ± 3℃.
10. The control method according to claim 6, wherein the standard temperature of the refrigerating compartment is b ℃ and the second temperature zone is b ± 3 ℃.
CN202011194100.4A 2020-10-30 2020-10-30 Refrigerator and control method thereof Active CN114440527B (en)

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CN201757564U (en) * 2010-08-06 2011-03-09 海信容声(广东)冰箱有限公司 Air duct system of frostless refrigerator
CN104089447A (en) * 2013-04-01 2014-10-08 苏州三星电子有限公司 Mechanical air door, air cooling system and air cooling control method for air cooling refrigerator with multiple compartments
CN203949425U (en) * 2014-06-03 2014-11-19 宁波华彩电器有限公司 A kind of wind cooling refrigerator
JP2015145756A (en) * 2014-02-03 2015-08-13 富士電機株式会社 Refrigeration warehouse
CN108332482A (en) * 2018-02-28 2018-07-27 青岛海尔股份有限公司 Refrigerator
CN109000421A (en) * 2018-06-26 2018-12-14 青岛海尔股份有限公司 Refrigerator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201322496Y (en) * 2008-12-23 2009-10-07 合肥美的荣事达电冰箱有限公司 One-way sealing air curtain structure without power
CN201757564U (en) * 2010-08-06 2011-03-09 海信容声(广东)冰箱有限公司 Air duct system of frostless refrigerator
CN104089447A (en) * 2013-04-01 2014-10-08 苏州三星电子有限公司 Mechanical air door, air cooling system and air cooling control method for air cooling refrigerator with multiple compartments
JP2015145756A (en) * 2014-02-03 2015-08-13 富士電機株式会社 Refrigeration warehouse
CN203949425U (en) * 2014-06-03 2014-11-19 宁波华彩电器有限公司 A kind of wind cooling refrigerator
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CN109000421A (en) * 2018-06-26 2018-12-14 青岛海尔股份有限公司 Refrigerator

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