CN109269191B - Refrigeration equipment with deep freezing function and control method thereof - Google Patents
Refrigeration equipment with deep freezing function and control method thereof Download PDFInfo
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- CN109269191B CN109269191B CN201811062566.1A CN201811062566A CN109269191B CN 109269191 B CN109269191 B CN 109269191B CN 201811062566 A CN201811062566 A CN 201811062566A CN 109269191 B CN109269191 B CN 109269191B
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—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 using ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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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
- 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
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigeration device with deep freezing function and a control method thereof, the refrigeration device comprises at least two compartments including a refrigerating chamber and a freezing chamber, all compartments of the refrigeration device share one refrigeration system, each compartment of the refrigeration device is provided with a respective air inlet and an air return inlet, an air inlet duct of each compartment is respectively provided with a respective independent air door and a fan, whether air is supplied to each compartment is controlled by controlling the opening or not of each air door, each compartment is internally provided with a temperature sensor, the refrigeration device is also provided with a control device, the opening and closing of a compressor and the air doors are controlled by the control device, so that the temperature of each compartment is controlled, the freezing chamber is a deep freezing quick freezing zone, and the lowest temperature of the freezing chamber is-33 ℃. Compared with the prior art, the invention has the following advantages: can realize the deep freezing and quick-freezing functions of food.
Description
Technical Field
The invention relates to refrigeration equipment, in particular to refrigeration equipment with a deep freezing function and a control method thereof.
Background
The lowest temperature of the freezing chamber of the household refrigerator on the market is-24 ℃, and the common freezing temperature is-18 ℃. Some refrigerators in the prior art have a quick-freezing function, but have the following defects:
(1) the functional area cannot meet the storage requirement of foods or seafood with longer freezing storage period.
(2) Users purchase a large amount of food at one time and need to freeze the food rapidly, and the existing freezing technology cannot provide rapid cooling and freezing speed.
(3) In some cases, after the whole machine is provided with a quick-freezing function, the temperature of the refrigerating chamber is reduced, and foods in the refrigerating chamber are frostbitten.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides refrigeration equipment with a deep freezing function and a control method thereof so as to realize the deep freezing and quick-freezing function of food.
The invention is realized by the following technical scheme:
a refrigeration device with deep freezing function comprises at least two compartments including a refrigerating chamber and a freezing chamber, wherein all compartments of the refrigeration device share one refrigeration system, the refrigeration system comprises a refrigeration loop formed by connecting a compressor, a condenser, a drying filter, a capillary tube and an evaporator end to end, the evaporator is arranged in an evaporator cavity, the evaporator cavity is arranged at the back of the freezing chamber, each compartment of the refrigeration device is provided with a respective air inlet and a respective air return opening, the air inlets of the compartments are respectively communicated with the upper part of the evaporator cavity through respective air inlet channels, the air return openings of the compartments are respectively communicated with the lower part of the evaporator cavity through respective air return channels, the air inlet channels of the compartments are respectively provided with a respective independent air door and a fan, and the opening of each air door is controlled, the refrigerating equipment is also provided with a control device, the control device is used for controlling the opening and closing of the compressor and the air door so as to control the temperature of each compartment, the freezing chamber is a deep freezing and quick-freezing zone, and the lowest temperature of the freezing chamber is-33 ℃.
Furthermore, a quick-acting disc is arranged in the freezing chamber.
Further, the refrigerant of the refrigeration system adopts R600a refrigerant.
The invention also discloses a control method of the refrigeration equipment with the deep freezing function, which is based on the refrigeration equipment with the deep freezing function, and when the refrigeration equipment starts the deep freezing function, the control method is carried out in sequence according to the following steps:
step one, starting a compressor, controlling an air door corresponding to a freezing chamber to be opened, refrigerating the freezing chamber, detecting the real-time temperature of the freezing chamber by a temperature sensor of the freezing chamber, and entering step two when the temperature of the freezing chamber reaches-33 ℃;
step two, when the temperature of the freezing chamber reaches the first starting temperature point TON1When the freezing chamber is opened, the air door of the freezing chamber is opened; when the temperature of the freezing chamber reaches a first stop temperature point TOFF1Closing the air door of the freezing chamber, and maintaining the period at t 1; wherein, TON1＝T1+TD1/2,TOFF1＝TON1–TD2/2, in the formula T1Is a preset temperature value and T1Taking at-33 ℃ and TD1And TD2Are all known parameters, TD1Indicating the floating temperature of a starting point of a freezing chamber in the shutdown process of the compressor; t isD2The difference between the starting temperature and the stopping temperature of the freezing chamber is referred to; t1 is more than 0 and less than or equal to 365 d;
step three, when the temperature of the freezing chamber reaches a second starting temperature point TON2When the freezing chamber is opened, the air door of the freezing chamber is opened; when the temperature of the freezing chamber reaches the second stop temperature point TOFF2When the freezing chamber is closed, the air door of the freezing chamber is closed; wherein, TON2＝T2+TD1/2,TOFF2＝TON2–TD2/2, in the formula T2T is a preset temperature value and is not less than-33 DEG C2<0℃。
Further, when the refrigeration device includes only two compartments, namely, a refrigerating compartment and a freezing compartment, the first step further includes: the air door of the refrigerating chamber is controlled as follows while the freezing chamber performs refrigeration: when the temperature of the refrigerating chamber reaches the temperature point T of the third opening machineON3When the air door is opened, the air door of the refrigerating chamber is opened; when the temperature of the refrigerating chamber reaches a third shutdown temperature point TOFF3At the same time, the air door of the refrigerating chamber is closed, wherein TON3＝T3+TC1/2,TOFF3＝TON3–TC2/2, in the formula T3Is a preset temperature value of 0 ≤ T3≤8℃，TC1And TC2Are all known parameters, TC1The floating temperature of a starting point of a refrigerating chamber is indicated in the stopping process of the compressor; t isC2Indicating the temperature difference between the start and the stop of the refrigerating chamber.
Compared with the prior art, the invention has the following advantages:
the invention provides refrigeration equipment with deep freezing function and a control method thereof, which controls the temperature of a freezing chamber by controlling the opening and closing of an air door, so that the temperature of the freezing chamber can be reduced to-33 ℃ after the refrigeration equipment opens the deep freezing and quick freezing function, the rapid freezing and long-term storage of the placed food can be realized, the nutrition of the frozen food can be kept to the maximum extent, and the problem that the food, especially the seafood, needs to be stored for a long time is solved. The invention can realize the deep freezing and quick-freezing function by matching the existing refrigerant and the refrigeration system, and has low energy consumption and strong economic and practical applicability.
Drawings
Fig. 1 is a schematic structural view of the present invention.
1 refrigerating chamber, 2 freezing chamber and 3 control device.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Referring to fig. 1, the embodiment discloses a refrigeration device with deep freezing function, the refrigeration device includes at least two compartments including a refrigerating compartment 1 and a freezing compartment 2, all compartments of the refrigeration device share one refrigeration system, the refrigeration system includes a refrigeration loop formed by connecting a compressor, a condenser, a drying filter, a capillary tube and an evaporator end to end, the evaporator is arranged in an evaporator cavity, the evaporator cavity is arranged at the back of the freezing compartment 2, each compartment of the refrigeration device is provided with a respective air inlet and a respective air return inlet, the air inlet of each compartment is respectively communicated with the upper part of the evaporator cavity through a respective air inlet channel, the air return inlet of each compartment is respectively communicated with the lower part of the evaporator cavity through a respective air return channel, the air inlet channel of each compartment is respectively provided with a respective independent air door and a fan, and the opening or not of each air door is controlled, therefore, whether air is supplied to each compartment is controlled, a temperature sensor is arranged in each compartment, a control device 3 is further arranged on the refrigeration equipment, the opening and closing of a compressor and an air door are controlled through the control device 3, so that the temperature of each compartment is controlled, the freezing chamber 2 is a deep freezing and quick-freezing area, and the lowest temperature of the freezing chamber 2 is minus 33 ℃.
The quick-freezing disk is arranged in the freezing chamber 2 and is made of high-efficiency heat exchange materials, so that the time of food passing through the ice crystal belt can be shortened. The refrigerant of the refrigeration system adopts R600a refrigerant.
The embodiment also discloses a control method of the refrigeration equipment with the deep freezing function, the control method is based on the refrigeration equipment with the deep freezing function, and when the refrigeration equipment starts the deep freezing function, the control method is carried out in sequence according to the following steps:
step one, starting a compressor, controlling an air door corresponding to the freezing chamber 2 to be opened, refrigerating the freezing chamber 2, detecting the real-time temperature of the freezing chamber 2 by a temperature sensor of the freezing chamber 2, and entering step two when the temperature of the freezing chamber 2 reaches-33 ℃;
step two, when the temperature of the freezing chamber 2 reaches the first starting temperature point TON1When the freezing chamber 2 is opened, the air door of the freezing chamber is opened; when the temperature of the freezing chamber 2 reaches the first stop temperature point TOFF1At this time, the damper of the freezing chamber 2 is closed, and the period is maintained for t 1; wherein, TON1＝T1+TD1/2,TOFF1＝TON1–TD2/2, in the formula T1Is a preset temperature value and T1Taking at-33 ℃ and TD1And TD2Are all known parameters, TD1Indicating the floating temperature of a starting point of a freezing chamber in the shutdown process of the compressor; t isD2The difference between the starting temperature and the stopping temperature of the freezing chamber is referred to; t1 is more than 0 and less than or equal to 365 d;
step three, when the temperature of the freezing chamber 2 reaches a second starting temperature point TON2When the freezing chamber 2 is opened, the air door of the freezing chamber is opened; when the temperature of the freezing chamber 2 reaches the second stop temperature point TOFF2When the freezing chamber 2 is closed, the air door of the freezing chamber is closed; wherein, TON2＝T2+TD1/2,TOFF2＝TON2–TD2/2, in the formula T2Is a preset temperature value of-33 DEG C<T2<0℃。
In the above control method, when the refrigeration equipment includes only two compartments, namely, the refrigerating compartment 1 and the freezing compartment 2, the first step further includes: while the freezing chamber 2 is refrigerating, the damper of the refrigerating chamber 1 is controlled as follows: when the temperature of the refrigerating chamber 1 reaches the temperature point T of the third opening machineON3When the air door of the refrigerating chamber 1 is opened; when the temperature of the refrigerating chamber 1 reaches the third stopping temperature point TOFF3At the same time, the damper of the refrigerating compartment 1 is closed, wherein TON3＝T3+TC1/2,TOFF3＝TON3–TC2/2, in the formula T3Is a preset temperature value of 0 ≤ T3≤8℃，TC1And TC2Are all known parameters, TC1The floating temperature of a starting point of a refrigerating chamber is indicated in the stopping process of the compressor; t isC2Indicating the temperature difference between the start and the stop of the refrigerating chamber.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A control method of a refrigeration apparatus with deep freezing function, the control method being based on a refrigeration apparatus with deep freezing function, the refrigeration apparatus comprising at least two compartments including a refrigerating compartment and a freezing compartment, all compartments of the refrigeration apparatus sharing a refrigeration system, characterized in that: refrigerating system includes the refrigeration circuit who is formed by compressor, condenser, drier-filter, capillary, evaporimeter end to end, the evaporimeter sets up in the evaporimeter intracavity, the evaporimeter chamber sets up freezing room back, its characterized in that: each compartment of the refrigeration equipment is provided with an air inlet and an air return inlet, the air inlet of each compartment is communicated with the upper part of the evaporator cavity through an air inlet channel, the air return inlet of each compartment is communicated with the lower part of the evaporator cavity through an air return channel, an air inlet channel of each compartment is internally provided with an independent air door and an independent fan, whether air is supplied to each compartment is controlled by controlling the opening or not of each air door, each compartment is internally provided with a temperature sensor, the refrigeration equipment is also provided with a control device, the opening and closing of a compressor and the air door are controlled by the control device, so that the temperature of each compartment is controlled, the freezing chamber is a deep freezing and quick-freezing zone, and the lowest temperature of the freezing chamber is-33 ℃;
when the refrigeration equipment starts the deep freezing and quick-freezing function, the control method is carried out in sequence according to the following steps:
step one, starting a compressor, controlling an air door corresponding to a freezing chamber to be opened, refrigerating the freezing chamber, detecting the real-time temperature of the freezing chamber by a temperature sensor of the freezing chamber, and entering step two when the temperature of the freezing chamber reaches-33 ℃;
step two, when the temperature of the freezing chamber reaches the first starting temperature point TON1When the freezing chamber is opened, the air door of the freezing chamber is opened; when the temperature of the freezing chamber reaches a first stop temperature point TOFF1Closing the air door of the freezing chamber, and maintaining the period at t 1; wherein, TON1＝T1+TD1/2,TOFF1＝TON1–TD2/2, in the formula T1Is a preset temperature value and T1Taking at-33 ℃ and TD1And TD2Are all known parameters, TD1Indicating the floating temperature of a starting point of a freezing chamber in the shutdown process of the compressor; t isD2The difference between the starting temperature and the stopping temperature of the freezing chamber is referred to; t1 is more than 0 and less than or equal to 365 d;
step three, when the temperature of the freezing chamber reaches a second starting temperature point TON2When the freezing chamber is opened, the air door of the freezing chamber is opened; when the temperature of the freezing chamber reaches the second stop temperature point TOFF2When the freezing chamber is closed, the air door of the freezing chamber is closed; wherein, TON2＝T2+TD1/2,TOFF2＝TON2–TD2/2, in the formula T2T is a preset temperature value and is not less than-33 DEG C2<0℃。
2. A control method of a refrigerating apparatus with a deep freezing function as claimed in claim 1, wherein: and a quick-acting disc is arranged in the freezing chamber.
3. A control method of a refrigerating apparatus with a deep freezing function as claimed in claim 1, wherein: the refrigerant of the refrigeration system adopts R600a refrigerant.
4. A control method of a refrigerating apparatus with a deep freezing function as claimed in claim 1, wherein: when the refrigeration equipment only comprises two compartments, namely a refrigerating compartment and a freezing compartment, the first step further comprises the following steps: the air door of the refrigerating chamber is controlled as follows while the freezing chamber performs refrigeration: when the temperature of the refrigerating chamber reaches the temperature point T of the third opening machineON3When the air door is opened, the air door of the refrigerating chamber is opened; when the temperature of the refrigerating chamber reaches a third shutdown temperature point TOFF3At the same time, the air door of the refrigerating chamber is closed, wherein TON3＝T3+TC1/2,TOFF3＝TON3–TC2/2, in the formula T3Is a preset temperature value of 0 ≤ T3≤8℃，TC1And TC2Are all known parameters, TC1The floating temperature of a starting point of a refrigerating chamber is indicated in the stopping process of the compressor; t isC2Indicating the temperature difference between the start and the stop of the refrigerating chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811062566.1A CN109269191B (en) | 2018-09-12 | 2018-09-12 | Refrigeration equipment with deep freezing function and control method thereof |
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| CN201811062566.1A CN109269191B (en) | 2018-09-12 | 2018-09-12 | Refrigeration equipment with deep freezing function and control method thereof |
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| CN109269191A CN109269191A (en) | 2019-01-25 |
| CN109269191B true CN109269191B (en) | 2020-10-30 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906665A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110822805A (en) * | 2019-10-11 | 2020-02-21 | 珠海格力电器股份有限公司 | A kind of refrigerator quick freezing storage control method and refrigerator |
| CN110906669A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906664A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906666A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906668A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906682A (en) * | 2019-10-30 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator instant freezing storage control method and refrigerator |
| CN110906681A (en) * | 2019-10-30 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator instant freezing storage control method and refrigerator |
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Address after: 230601 No. 4288, Tian Du Road, Hefei economic and Technological Development Zone, Anhui Applicant after: Hefei Kinghome Electrical Appliance Co., Ltd. Address before: 230601 No. 4288 Tiandu Road, Shushan Economic and Technological Development Zone, Hefei City, Anhui Province Applicant before: Hefei Kinghome Electrical Appliance Co., Ltd. |
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