CN113915877A - Refrigerator and control method thereof - Google Patents

Refrigerator and control method thereof Download PDF

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Publication number
CN113915877A
CN113915877A CN202110354440.7A CN202110354440A CN113915877A CN 113915877 A CN113915877 A CN 113915877A CN 202110354440 A CN202110354440 A CN 202110354440A CN 113915877 A CN113915877 A CN 113915877A
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CN
China
Prior art keywords
humidity
moisture permeable
refrigerator
air outlet
air
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Granted
Application number
CN202110354440.7A
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Chinese (zh)
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CN113915877B (en
Inventor
王磊
鞠晓晨
王海燕
赵兴
鲍雨锋
杨大海
杨春
栾福磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Priority to CN202110354440.7A priority Critical patent/CN113915877B/en
Publication of CN113915877A publication Critical patent/CN113915877A/en
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Publication of CN113915877B publication Critical patent/CN113915877B/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • 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 relates to the technical field of refrigeration and preservation, and discloses a refrigerator and a control method thereof, wherein the refrigerator comprises a box body, wherein a refrigeration chamber and a machine bin are limited in the refrigerator body; an evaporator is arranged in the machine bin; a box door; a controller; the temperature control fan is arranged in the machine bin; the fresh-keeping container is arranged in the refrigerating chamber and comprises a cylinder, a moisture permeable film, a humidity adjusting switch and a humidity sensor; a fresh-keeping chamber is limited in the barrel, a plurality of first moisture permeable holes are arranged on the barrel wall of the barrel, and the first moisture permeable holes are covered by a moisture permeable film; the humidity adjusting switch is arranged on the cylinder body, and the humidity sensor is arranged in the fresh-keeping cavity; a cold air outlet corresponding to the moisture permeable film is arranged on the wall of the refrigerating chamber; an air outlet channel of the temperature control fan is communicated with the cold air outlet, and an air door for controlling the air quantity is arranged in the air outlet channel; the temperature control fan is used for driving air flowing through the evaporator to enter the air outlet channel. The invention can adjust the humidity in the cylinder and maintain the humidity in the cylinder to be constant.

Description

Refrigerator and control method thereof
Technical Field
The invention relates to the technical field of refrigeration and preservation, in particular to a refrigerator and a control method thereof.
Background
The harvested fruits and vegetables are living organisms, the life metabolic activities of the fruits and vegetables are still orderly carried out, the tissues can still carry out respiration, and organic substances are consumed. The storage life of the fruits and vegetables is directly influenced by the strength of respiration.
Therefore, the principle of the refrigerator with the fruit and vegetable fresh-keeping drawer on the market is that the respiration of the fruits and vegetables is inhibited by different means, so that the shelf life of the fruits and vegetables is prolonged.
The external environmental factors influencing the respiration of the fruit and vegetable tissues mainly comprise the following factors: temperature, humidity, gas composition of the storage environment, and ethylene content in the storage environment.
The refrigerator with the humidity-adjustable drawer is available in the market nowadays, an air port is formed in the rear portion of the drawer, and the air quantity blown into the drawer is controlled by adjusting the size of the air port, so that three-gear humidity adjustment of the drawer, namely high, medium and low, is realized.
In the humidity control method, the air port is directly communicated with the external environment of the humidity control drawer, so that the humidity in the drawer is greatly influenced by the external environment, and the following problems can occur:
firstly, the drawer is difficult to simultaneously meet the humidity control requirements of three gears, namely, the drawer is easy to have overhigh humidity in middle and low humidity gears or have overlow humidity in high humidity gears.
Secondly, when the drawer is in different humidity gears, the constant of the internal humidity of the drawer is difficult to maintain, and the fluctuation of the humidity is large. Especially, when the drawer is arranged under middle and low humidity levels, the humidity inside the drawer greatly fluctuates. Moreover, the on-off operation of the compressor of the refrigerator can cause great humidity fluctuation in the drawer. The humidity fluctuation is large, and the activity of hydrolase in food materials is enhanced, so that the aging and deterioration of fruits and vegetables are accelerated.
Thus, improvements in the prior art are needed.
Disclosure of Invention
The purpose of the invention is: the refrigerator and the control method thereof are provided for solving the technical problems that a drawer for controlling the humidity by controlling the air volume blown into the drawer in the refrigerator in the prior art is difficult to simultaneously meet the humidity control requirements of three gears, and the constant of the internal humidity is difficult to maintain and the fluctuation of the humidity is large when the humidity is different.
In order to achieve the above object, the present invention provides a refrigerator including:
the refrigerator comprises a box body, a refrigerator body and a refrigerator cabin, wherein a refrigerating chamber and the refrigerator cabin are defined in the box body; an evaporator is arranged in the machine bin;
a door for opening and closing the refrigerating chamber;
a controller for controlling electrical components within the case;
wherein, still include:
the temperature control fan is arranged in the machine bin;
the fresh-keeping container is arranged in the refrigerating chamber and comprises a cylinder, a moisture permeable film, a humidity adjusting switch and a humidity sensor;
a fresh-keeping chamber is limited in the barrel, a plurality of first moisture permeable holes are formed in the barrel wall of the barrel, and the first moisture permeable holes are covered by the moisture permeable film; the humidity adjusting switch is arranged on the cylinder body, and the humidity sensor is arranged in the fresh-keeping cavity;
a cold air outlet corresponding to the moisture permeable film is arranged on the wall of the refrigerating chamber;
an air outlet channel of the temperature control fan is communicated with the cold air outlet, and an air door for controlling air quantity is arranged in the air outlet channel; the temperature control fan is used for driving air flowing through the evaporator to enter the air outlet channel;
the humidity adjusting switch, the humidity sensor and the air door are all electrically connected with the controller.
In some embodiments of the present application, the first moisture permeable hole is disposed on a rear-side wall of the cylinder, and the cold air outlet is correspondingly disposed on a rear-side wall of the cold storage chamber.
In some embodiments of the present application, the machine cabin includes a first machine cabin and a second machine cabin, and the first machine cabin is communicated with the second machine cabin through an external air duct;
the evaporator is arranged in the first machine cabin;
the second machine cabin is positioned between the rear side cavity wall of the refrigerating cavity and the rear side wall of the box body, and the temperature control fan is arranged in the second machine cabin.
In some embodiments of the present application, a return air inlet is disposed at a position below the cold air outlet on a wall of the cold storage chamber, and the moisture permeable film is disposed at a position between the cold air outlet and the return air inlet.
In some embodiments of the present application, the damper is provided at an air inlet of the air outlet duct.
In some embodiments of the present application, an ethylene degradation catalyst layer is disposed on a side of the moisture permeable film facing the fresh keeping chamber.
In some embodiments of the present application, the fresh-keeping container further comprises a sealing cover plate;
the wall of the cylinder provided with the first moisture permeable hole is also provided with an installation groove for accommodating the moisture permeable film; the moisture permeable film is limited in the mounting groove by the sealing cover plate, so that the moisture permeable film covers the first moisture permeable hole, and a second moisture permeable hole is arranged at a position, corresponding to the first moisture permeable hole, on the sealing cover plate.
In some embodiments of this application, the inboard of mounting groove is equipped with first joint spare, the outside of sealed apron be equipped with first joint spare forms the second joint spare that can dismantle the connection.
The application also provides a control method applied to the refrigerator, which comprises the following steps:
acquiring gear humidity of a humidity adjusting switch and acquiring real-time humidity in the fresh-keeping cavity;
judging the real-time humidity and the gear humidity,
if the real-time humidity is within the range threshold of the gear humidity, controlling an air door to be closed;
if the real-time humidity is lower than the range threshold of the gear humidity, controlling an air door to be closed;
and if the real-time humidity is higher than the range threshold of the gear humidity, controlling the air door to be opened until the real-time humidity is reduced to be within the range threshold of the gear humidity, and then controlling the air door to be closed.
In some embodiments of the present application, when the real-time humidity is above the range threshold of the notch humidity,
judging the difference value between the real-time humidity and the gear humidity,
if the difference value is more than or equal to 20% RH, controlling the air door to be fully opened;
and if the difference is within the range of 0-20% RH, controlling the air door to open 1/2 until the real-time humidity is reduced to be within the range threshold of the gear humidity, and then controlling the air door to close.
Compared with the prior art, the refrigerator and the control method thereof have the advantages that:
according to the refrigerator and the control method thereof provided by the embodiment of the invention, the preservation container is arranged in the refrigerating chamber, the barrel body of the preservation container is of an integral sealing structure, and only moisture permeable holes required by the operation of a moisture permeable film are reserved, so that the control of the humidity and the gas composition in the barrel body is facilitated. And, be equipped with the cold wind export in the position department that corresponds with the moisture permeable membrane to set up the air outlet volume of air door control cold wind export, with the temperature in the control moisture permeable membrane outside, thereby the humidity that can adjust the barrel is in high, well, low arbitrary gear, and when the humidity gear of difference, maintains the invariant of the inside humidity of barrel, reduces humidity variation fluctuation, makes the fresh-keeping container can satisfy the fresh-keeping demand of different kind vegetables and fruits.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a partial structural schematic view of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a rear view of the refrigeration chamber;
FIG. 3 is a schematic view of an exploded structure of the refrigeration chamber;
FIG. 4 is an exploded view of the rear panel and the hangar panel;
FIG. 5 is a schematic view of the construction of the freshness container;
FIG. 6 is a schematic diagram of an exploded structure of the freshness container;
FIG. 7 is a rear view of the cartridge;
FIG. 8 is an exploded view of the cartridge, the moisture permeable membrane and the sealing cover plate;
FIG. 9 is a first schematic view showing the positions of the cold air outlet, the air return inlet and the moisture permeable film;
FIG. 10 is a schematic view showing the positions of the cold air outlet, the air return inlet and the moisture permeable film;
in the figure, 100, a box body; 110. a refrigeration chamber; 111. a cold air outlet; 112. an air return opening; 113. a rear side cavity wall; 114. a housing; 115. a rear side plate; 116. a hangar plate; 120. a machine cabin; 121. a second machine cabin;
200. a freshness-retaining container; 210. a barrel; 211. a fresh-keeping chamber; 212. mounting grooves; 213. a first moisture permeable hole; 214. a first clip member; 215. an upper side cylinder wall; 216. a rear side cylinder wall; 220. a moisture permeable film; 230. sealing the cover plate; 231. a second moisture permeable aperture; 232. a second clip member; 240. a humidity adjusting switch; 250. a humidity sensor; 260. a preservation drawer; 270. a slide rail; 280. sealing rubber strips;
300. a temperature control fan; 310. an air outlet channel; 311. an air duct plate; 320. a damper;
400. an outer air duct.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
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.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, 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 specifically defined otherwise.
Referring to fig. 1 to 4, a refrigerator according to a preferred embodiment of the present invention mainly includes a refrigerator body 100, a door (not shown), a controller (not shown), and a fresh food container 200.
Specifically, the interior of the box 100 defines a refrigeration chamber 110 and a cabinet 120, and an evaporator (not shown) and a temperature control fan 300 are disposed in the cabinet 120. The door is used to open and close the refrigerating chamber 110. The controller is used for controlling electrical components in the refrigerator body 100 to work according to design instructions, and is a main control unit of the refrigerator. The fresh food container 200 is provided in the refrigerating chamber 110.
Referring to fig. 5 to 8, the fresh keeping container 200 includes a cylinder 210, a moisture permeable film 220, a humidity adjusting switch 240, and a humidity sensor 250.
The cylinder 210 is an integral sealing structure, a fresh-keeping chamber 211 is defined in the cylinder, a plurality of first moisture permeable holes 213 are arranged on the wall of the cylinder 210, and the first moisture permeable holes 213 are covered by a moisture permeable film 220. The humidity adjusting switch 240 is disposed on the cylinder 210, and the humidity sensor 250 is disposed in the fresh food chamber 211.
Referring to fig. 9 and 10, the cold air outlet 111 corresponding to the moisture permeable film 220 is disposed on the wall of the refrigerating chamber 110. Referring to fig. 3 and 4, the air outlet channel 310 of the temperature control fan 300 is communicated with the cool air outlet 111, and an air door 320 for controlling the air volume is disposed in the air outlet channel 310. The temperature controlled fan 300 drives the air flowing through the evaporator into the air outlet duct 310, and enters the refrigerating chamber 110 from the cool air outlet 111 through the control of the damper 320. The humidity control switch 240, the humidity sensor 250 and the damper 320 are electrically connected to the controller.
The moisture permeable membrane 220 is a water permeable and air impermeable membrane material in the prior art, and has a certain humidity adjusting function, so that when no external condition interference exists, the humidity inside the adjustable membrane is constantly maintained at about 90% RH and is not influenced by changes of external environment air flow and the like. The technical principle of the moisture permeable film 220 is as follows: when there is a difference in chemical potential of the environment on both sides of the moisture permeable film 220, moisture is transferred-equilibrated. The difference in chemical potential energy between the environments on both sides of the moisture permeable film 220 can be expressed as Δ M ═ Mo－Mi＝R(Tolnpo－Tilnpi) Where P is the water vapor pressure, T is the temperature, o is the outside of the moisture permeable film 220 (i.e., outside the cylindrical body 210), and i is the inside of the moisture permeable film 220 (i.e., inside the cylindrical body 210). In the above formula, if Δ M > 0, the outer side of the moisture permeable film 220The water vapor inside the cylinder 210, that is, the water vapor outside the cylinder 210 moves into the cylinder 210, and the humidity inside the cylinder 210 increases. The transition is a spontaneous process for achieving an equilibrium state (Δ M ═ 0), and continues until Δ M ═ 0. If Δ M is 0, the water vapor on both sides of the moisture permeable film 220 is in a dynamic equilibrium state, and the moisture does not transfer, that is, the humidity in the cylindrical body 210 does not increase or decrease. If Δ M is less than 0, the water vapor inside the moisture permeable film 220 migrates to the outside, that is, the water vapor inside the cylindrical body 210 migrates to the outside of the cylindrical body 210, and the humidity inside the cylindrical body 210 decreases. The transition is a spontaneous process for achieving an equilibrium state (Δ M ═ 0), and continues until Δ M ═ 0.
In the technical solution of the present application, the cylinder 210 of the freshness retaining container 200 is an integral sealing structure, and only the moisture permeable hole (the first moisture permeable hole 213) required for the operation of the moisture permeable film 220 is left. According to the equation of fruit and vegetable respiration: c6H12O6+6O2→6CO2+6H2O + energy, which is consumed by fruits and vegetables placed in the cylinder 210 during respiration2Generating CO having a significant effect on freshness2. Due to the action of the moisture permeable membrane 220, the inside of the cylinder 210 only exchanges moisture with the outside and does not exchange air with the outside, so that CO can be effectively accumulated in the cylinder 2102Make O in the environment of the cylinder 2102Reduced concentration of CO2The concentration is increased, thereby reducing the respiration intensity of the fruits and vegetables and improving the fresh-keeping effect. Sealing the O in the cylinder 210 with the storage time being prolonged2Is constantly consumed, CO2The continuous generation can continuously inhibit the respiration of the fruits and vegetables, and the effect of long-acting preservation is achieved.
In addition, in the technical scheme of the application, the Δ M can be changed by adjusting the temperature outside the moisture permeable film 220, so as to achieve the purpose of humidity adjustment. The structure that this application mainly adopted does: a cold air outlet 111 is provided at a position corresponding to the moisture permeable film 220, and an air door 320 is provided to control an air output of the cold air outlet 111, thereby controlling a temperature outside the moisture permeable film 220.
Specifically, the present application provides a control method applied to the refrigerator of the above embodiment, which mainly includes the following steps:
first, the controller obtains the gear humidity of the humidity adjusting switch 240 and obtains the real-time humidity in the fresh food chamber 211 through the humidity sensor 250.
And then, judging the real-time humidity and the gear humidity. The gear humidity is provided with a high gear, a middle gear and a low gear, the humidity range corresponding to the high humidity gear is 90-98% RH, and the high humidity gear is suitable for storing leaf vegetables, cauliflower, fungi, vegetable beans, stone fruits, kernel fruits and berry fruits; the humidity range corresponding to the middle-wet gear is 80-90% RH, and the middle-wet gear is suitable for storing root vegetables such as potatoes, sweet potatoes and the like, solanaceous vegetables and citrus fruits; the humidity range corresponding to the low-humidity gear is 70-80% RH, and the low-humidity gear is suitable for storing root vegetables such as onion, garlic and the like, melon vegetables and fruits.
If the real-time humidity is within the range threshold of the humidity in the corresponding range, the damper 320 is controlled to be closed, that is, the temperature outside the moisture permeable film 220 does not need to be adjusted, so that the inside and the outside of the cylindrical body 210 are kept in a balanced state (Δ M ═ 0).
If the real-time humidity is lower than the range threshold of the gear humidity, according to the chemical potential energy difference formula, that is, Δ M is greater than 0, at this time, depending on the moisture retention and moisture permeation effects of the moisture permeable film 220 itself, the water vapor outside the cylinder 210 spontaneously transfers into the cylinder 210, so that the humidity inside the cylinder 210 gradually increases until an equilibrium state is reached (Δ M ═ 0). At this point, no manual adjustment is required, and the damper 320 is controlled to close.
If the real-time humidity is higher than the range threshold of the gear humidity, the damper 320 is controlled to open. After the damper 320 is opened, the temperature of the outer side of the moisture permeable film 220 is lowered, i.e., ToDecrease of ToDecrease is then poDecrease, according to the above chemical potential energy difference formula, MoAnd also decreases, resulting in Δ M < 0, and the water vapor in the can 210 is transferred to the outside of the can 210, thereby decreasing the humidity in the can 210. Until the real-time humidity falls within the range threshold of the notch humidity, the damper 320 is then closed.
Further, when the real-time humidity is higher than the range threshold of the gear humidity, the difference between the real-time humidity and the gear humidity is judged.
If the difference is greater than or equal to 20% RH, the damper 320 is controlled to be fully opened to reduce the temperature outside the moisture permeable film 220 at the maximum rate, so that the humidity in the cylinder 210 is rapidly reduced. If the difference is within the range of 0-20% RH, the damper 320 is controlled to open 1/2 to gradually decrease the humidity in the barrel 210 until the real-time humidity is decreased to be within the range threshold of the gear humidity, and then the damper 320 is controlled to close.
To sum up, in the refrigerator provided by the present invention, the refrigerating chamber 110 is provided with the preservation container 200, the cylinder 210 of the preservation container 200 is an integral sealing structure, and only moisture permeable holes required by the operation of the moisture permeable film 220 are left, which is beneficial to controlling the humidity and the gas composition in the cylinder 210. And, be equipped with cold wind export 111 in the position department that corresponds with moisture-permeable membrane 220 to set up the air output of air door 320 control cold wind export 111, with the temperature in the control moisture-permeable membrane 220 outside, thereby adjustable barrel 210 internal humidity is in high, middle, low arbitrary gear, and when different humidity gears, maintains the invariant of barrel 210 internal humidity, reduces humidity variation fluctuation, makes freshness retaining container 200 can satisfy the fresh-keeping demand of different kind vegetables and fruits.
In some embodiments of the present application, referring to fig. 6 and 7, the crisper container 200 further comprises a crisper drawer 260 and a slide 270. The barrel 210 is a rectangular box structure with a front opening surrounded by a bottom side barrel wall, an upper side barrel wall 215, two lateral side barrel walls and a rear side barrel wall 216, the sliding rails 270 are arranged on the two lateral side barrel walls, and the preservation drawer 260 is slidably connected with the sliding rails 270, so that the preservation drawer 260 can be pulled in and out of the barrel 210.
In some embodiments of the present application, referring to fig. 6, a bead 280 is also provided at the forward opening edge of the barrel 210. After the crisper drawer 260 is pushed into the barrel 210, the inner surface of the front end of the crisper drawer 260 contacts with the sealing rubber strip 280, so that the crisper drawer 260 and the barrel 210 form a sealing connection.
In some embodiments of the present application, referring to fig. 2-4, the machine cabin 120 includes a first machine cabin (not shown) and a second machine cabin 121, and the first machine cabin and the second machine cabin 121 are communicated through an outer air duct 400. The evaporator is arranged in the first machine cabin, the second machine cabin 121 is arranged between the rear side cavity wall 113 of the refrigeration cavity 110 and the rear side wall of the box body 100, and the temperature control fan 300 is arranged in the second machine cabin 121.
In some embodiments of the present application, referring to fig. 2-4, the refrigeration chamber 110 includes a housing 114, a rear side panel 115, and a galley panel 116. The rear plate 115 is disposed in the casing 114, and has an installation space with a rear wall of the casing 114, and the rear plate 115 and the rear wall of the casing 114 together form a rear cavity wall 113 of the refrigerating chamber 110. The rear surface of the rear side plate 115 is provided with an installation cavity for installing the temperature control fan 300, and the machine cabin plate 116 is covered on the installation cavity to form a second machine cabin 121. The outer duct 400 and the air outlet duct 310 are both located in the installation space, and referring to fig. 4, after the duct plate 311 of the air outlet duct 310 is disassembled, the position of the cool air outlet 111 can be seen.
In some embodiments of the present application, referring to fig. 3 and 4, the damper 320 is disposed at the air inlet of the air outlet duct 310. The above arrangement allows the damper 320 to control the wind direction more effectively, and prevents the wind from forming a vortex in the air outlet passage 310.
In some embodiments of the present application, referring to fig. 6-8, the first moisture permeable holes 213 are provided on the rear side wall 216 of the cartridge body. Referring to fig. 3 and 4, the cool air outlet 111 is correspondingly formed on the rear wall 113 of the refrigerating chamber 110. The arrangement is beneficial to reasonably arranging the temperature control fan 300 and the air outlet channel 310 in the box body 100.
In some embodiments of the present application, referring to fig. 9 and 10, an air return opening 112 is disposed on the wall of the refrigeration chamber 110 at a position below the cold air outlet 111, and the moisture permeable film 220 is disposed at a position between the cold air outlet 111 and the air return opening 112. The air return opening 112 is specifically provided in the rear side plate 115. The cold air outlet 111 is provided to reduce the temperature outside the moisture permeable film 220, so as to reduce the humidity inside the cylindrical body 210. When the temperature control fan 300 is started to work and the air door 320 is opened, cold air flows from the cold air outlet 111 to the air return opening 112, and the moisture permeable film 220 is just positioned on the cold air flow path, so that the temperature of the outer side of the moisture permeable film 220 can be quickly reduced in the air circulation process, the moisture in the cylinder 210 can be quickly dispersed, the humidity in the cylinder 210 can be quickly reduced, and the purpose of adjustment is achieved. Moreover, the water vapor can be condensed into condensation when being cooled at a low temperature, so that the condensation can be quickly formed by the redundant water vapor in the cylinder 210, and the condensation can be diffused to the outside of the cylinder 210 through the capillary action of the moisture permeable film 220, so that the internal humidity of the cylinder 210 can not be supersaturated, and the respiration of fruits and vegetables can be favorably inhibited.
In some embodiments of the present application, a side of the moisture permeable film 220 facing the fresh food compartment 211 is provided with an ethylene degradation catalyst layer. The surface of the moisture permeable film 220 facing the fresh keeping chamber 211 is coated with a metal catalyst compound having an ethylene catalytic function, so as to form an ethylene degradation catalytic layer. The ethylene degradation catalyst can make ethylene react with H under the catalytic action2O reacts to generate acetaldehyde and other secondary products, and finally the acetaldehyde is degraded into CO2And H2O, which makes ethylene lose the ripening function.
In the invention, the ethylene degradation catalyst layer is arranged on the side of the moisture permeable film 220 facing the fresh-keeping chamber 211, and the ethylene generated in the storage process of fruits and vegetables can be finally degraded into CO2And H2O, effectively reducing the ethylene content inside the can 210. H produced in ethylene degradation process2O promotes the water partial pressure of the moisture permeable film 220 to be increased, the moisture permeable efficiency is improved, and CO generated at the same time2Continue to accumulate within the barrel 210. The setting controls the relevant conditions beneficial to inhibiting the respiration of the fruits and vegetables at the optimal level by controlling the ethylene content and the gas composition in the cylinder 210, and effectively reduces the respiration intensity of the fruits and vegetables, thereby prolonging the fresh-keeping period of the fruits and vegetables and effectively reducing the nutrition loss of the fruits and vegetables in the storage process.
In some embodiments of the present application, referring to FIG. 8, the crisper container 200 further comprises a sealing cap 230. The wall of the tube provided with the first moisture permeable hole 213 is further provided with an installation groove 212 for accommodating the moisture permeable membrane 220. The moisture permeable film 220 is defined in the mounting groove 212 by the sealing cover 230, so that the moisture permeable film 220 covers the first moisture permeable hole 213, and a second moisture permeable hole 231 is provided at a position on the sealing cover 230 corresponding to the first moisture permeable hole 213.
In some embodiments of the present application, referring to fig. 8, the inner side of the mounting groove 212 is provided with a first clamping member 214, and the outer side of the sealing cover plate 230 is provided with a second clamping member 232 detachably connected to the first clamping member 214.
In the above embodiment, referring to fig. 8, the first engaging member 214 is a buckle, the second engaging member 232 is an engaging hole, and the sealing cover 230 can be directly engaged with the mounting groove 212.
The utility model provides a sealed apron 230 utilizes detachable buckle structure to inject moisture-permeable membrane 220 in mounting groove 212, forms inside integrated design, does not need special sealed processing after the installation, effectively saves the sealing member cost.
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, comprising:
the refrigerator comprises a box body, a refrigerator body and a refrigerator cabin, wherein a refrigerating chamber and the refrigerator cabin are defined in the box body; an evaporator is arranged in the machine bin;
a door for opening and closing the refrigerating chamber;
a controller for controlling electrical components within the case;
it is characterized by also comprising:
the temperature control fan is arranged in the machine bin;
the fresh-keeping container is arranged in the refrigerating chamber and comprises a cylinder, a moisture permeable film, a humidity adjusting switch and a humidity sensor;
a fresh-keeping chamber is limited in the barrel, a plurality of first moisture permeable holes are formed in the barrel wall of the barrel, and the first moisture permeable holes are covered by the moisture permeable film; the humidity adjusting switch is arranged on the cylinder body, and the humidity sensor is arranged in the fresh-keeping cavity;
a cold air outlet corresponding to the moisture permeable film is arranged on the wall of the refrigerating chamber;
an air outlet channel of the temperature control fan is communicated with the cold air outlet, and an air door for controlling air quantity is arranged in the air outlet channel; the temperature control fan is used for driving air flowing through the evaporator to enter the air outlet channel;
the humidity adjusting switch, the humidity sensor and the air door are all electrically connected with the controller.
2. The refrigerator as claimed in claim 1, wherein the first moisture permeable hole is formed on a rear wall of the barrel, and the cool air outlet is correspondingly formed on a rear wall of the refrigerating chamber.
3. The refrigerator according to claim 2, wherein the cabinet comprises a first cabinet and a second cabinet, and the first cabinet and the second cabinet are communicated through an external air duct;
the evaporator is arranged in the first machine cabin;
the second machine cabin is positioned between the rear side cavity wall of the refrigerating cavity and the rear side wall of the box body, and the temperature control fan is arranged in the second machine cabin.
4. The refrigerator according to claim 1 or 2, wherein a return air opening is provided on a wall of the refrigerating chamber at a position below the cool air outlet, and the moisture permeable film is provided at a position between the cool air outlet and the return air opening.
5. The refrigerator as claimed in claim 1, wherein the damper is provided at an air inlet of the air outlet duct.
6. The refrigerator according to claim 1, wherein a ethylene degradation catalyst layer is provided on a side of the moisture permeable film facing the fresh keeping chamber.
7. The refrigerator of claim 1, wherein the fresh food container further comprises a sealing cover plate;
the wall of the cylinder provided with the first moisture permeable hole is also provided with an installation groove for accommodating the moisture permeable film; the moisture permeable film is limited in the mounting groove by the sealing cover plate, so that the moisture permeable film covers the first moisture permeable hole, and a second moisture permeable hole is arranged at a position, corresponding to the first moisture permeable hole, on the sealing cover plate.
8. The refrigerator as claimed in claim 7, wherein a first engaging member is provided at an inner side of the mounting groove, and a second engaging member detachably connected to the first engaging member is provided at an outer side of the sealing cover plate.
9. A control method applied to the refrigerator of any one of claims 1 to 8, characterized by comprising the steps of:
acquiring gear humidity of a humidity adjusting switch and acquiring real-time humidity in the fresh-keeping cavity;
judging the real-time humidity and the gear humidity,
if the real-time humidity is within the range threshold of the gear humidity, controlling an air door to be closed;
if the real-time humidity is lower than the range threshold of the gear humidity, controlling an air door to be closed;
and if the real-time humidity is higher than the range threshold of the gear humidity, controlling the air door to be opened until the real-time humidity is reduced to be within the range threshold of the gear humidity, and then controlling the air door to be closed.
10. The control method of claim 9, wherein when the real-time humidity is above the range threshold of notch humidity,
judging the difference value between the real-time humidity and the gear humidity,
if the difference value is more than or equal to 20% RH, controlling the air door to be fully opened;
and if the difference is within the range of 0-20% RH, controlling the air door to open 1/2 until the real-time humidity is reduced to be within the range threshold of the gear humidity, and then controlling the air door to close.
CN202110354440.7A 2021-04-01 2021-04-01 Refrigerator and control method thereof Active CN113915877B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117053463A (en) * 2023-07-26 2023-11-14 江苏盛泽农业开发有限公司 Onion cold-stored fresh-keeping device
CN117053463B (en) * 2023-07-26 2024-04-26 江苏盛泽农业开发有限公司 Onion cold-stored fresh-keeping device

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JPH0271078A (en) * 1988-09-06 1990-03-09 Sanyo Electric Co Ltd Refrigerator
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CN109869974A (en) * 2017-12-05 2019-06-11 东芝生活电器株式会社 Refrigerator
CN110513936A (en) * 2018-05-22 2019-11-29 青岛海尔股份有限公司 Refrigerator
CN111380312A (en) * 2018-12-27 2020-07-07 青岛海尔股份有限公司 Drawer assembly, humidity adjusting method of drawer assembly and refrigerator
CN211823362U (en) * 2019-11-21 2020-10-30 青岛海尔电冰箱有限公司 Refrigerator with a door

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Publication number Priority date Publication date Assignee Title
JPH0271078A (en) * 1988-09-06 1990-03-09 Sanyo Electric Co Ltd Refrigerator
JP2017190875A (en) * 2016-04-11 2017-10-19 パナソニックＩｐマネジメント株式会社 refrigerator
CN109869974A (en) * 2017-12-05 2019-06-11 东芝生活电器株式会社 Refrigerator
CN110513936A (en) * 2018-05-22 2019-11-29 青岛海尔股份有限公司 Refrigerator
CN111380312A (en) * 2018-12-27 2020-07-07 青岛海尔股份有限公司 Drawer assembly, humidity adjusting method of drawer assembly and refrigerator
CN211823362U (en) * 2019-11-21 2020-10-30 青岛海尔电冰箱有限公司 Refrigerator with a door

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117053463A (en) * 2023-07-26 2023-11-14 江苏盛泽农业开发有限公司 Onion cold-stored fresh-keeping device
CN117053463B (en) * 2023-07-26 2024-04-26 江苏盛泽农业开发有限公司 Onion cold-stored fresh-keeping device

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