CN112240677B - Control method for multifunctional chamber of refrigerator - Google Patents

Control method for multifunctional chamber of refrigerator Download PDF

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Publication number
CN112240677B
CN112240677B CN202011335516.3A CN202011335516A CN112240677B CN 112240677 B CN112240677 B CN 112240677B CN 202011335516 A CN202011335516 A CN 202011335516A CN 112240677 B CN112240677 B CN 112240677B
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chamber
temperature
parameter
multifunctional
freezing
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CN112240677A (en
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宋晖
胡献国
王勇
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Hefei University of Technology
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Hefei University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00Control issues
    • F25D2600/06Controlling according to a predetermined profile
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature

Abstract

The invention discloses a control method of a multifunctional chamber of a refrigerator, which comprises the following steps: 1, measuring the ambient temperature by using an ambient temperature sensor, and selecting initial control parameters according to the set temperature of the multifunctional compartment; 2, measuring the temperature of the refrigerating chamber by using a refrigerating sensor, and selecting a refrigerating correction coefficient A of the multifunctional chamber control parameter according to the current temperature interval; measuring the temperature of the freezing chamber by using a freezing sensor, and judging the temperature interval of the freezing chamber, thereby selecting a freezing correction coefficient B of the multifunctional chamber control parameter; 4 outputting the final control parameters of the multifunctional chamber. The invention can solve the problem of the influence of the refrigerating chamber and the freezing chamber on the temperature of the multifunctional chamber, thereby ensuring the accuracy of the temperature control of the multifunctional chamber and effectively reducing the fluctuation of the temperature of the multifunctional chamber.

Description

Control method for multifunctional chamber of refrigerator
Technical Field
The invention belongs to the field of refrigerator performance control, and particularly relates to a method for controlling a multifunctional chamber of a refrigerator.
Background
As shown in fig. 2, as the demand of the user for precise temperature control is gradually increased, a large number of independent temperature control modes (i.e. independent air supply of the multifunctional chamber damper 6 and independent multifunctional sensor 9) are adopted for the multifunctional chambers 2 (generally, temperature ranges of refrigeration, ice temperature, 0 ℃ and-3 ℃ icing and the like) arranged in the refrigerating chamber 1 of the refrigerator. At present, the control mode is to measure the environmental temperature by the ambient temperature sensor 7, and then to select the temperature control parameter of the ambient temperature zone to control the switch of the multi-functional room air door, as shown in fig. 1.
Because complete sealing between the multifunctional chamber and the refrigerating chamber is difficult to achieve, when the refrigerating chamber 1 is set to different temperatures, the temperature sensing of the multifunctional sensor 9 is influenced, the integral temperature of the multifunctional chamber fluctuates, and the temperature can not be accurately controlled; on the other hand, the freezing chamber 3 and the refrigerating chamber are insulated by the foaming interlayer 4, but part of cold energy is still transmitted to the bottom of the refrigerating chamber 1. When the temperature of the freezing chamber is low, the temperature of the bottom of the multifunctional chamber 2 is low, and if the control is continued according to the original control parameters, the temperature of the multifunctional chamber 2 is reduced from 0 ℃ or above to below 0 ℃, which may cause the food to be frozen.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a control method of a multifunctional chamber of a refrigerator, so that the influence of a refrigerating chamber and a freezing chamber on the temperature of the multifunctional chamber can be solved, the accuracy of temperature control of the multifunctional chamber is ensured, and the fluctuation of the temperature of the multifunctional chamber can be effectively reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a control method of a multifunctional chamber of a refrigerator, which is characterized by comprising the following steps:
step 1, measuring an environment temperature Ts by using an environment temperature sensor, and selecting an initial control parameter according to a set temperature Tcs of a multifunctional chamber: a starting point Tck and a stopping point Tct;
step 2, measuring the temperature Tr of the refrigerating chamber by using a refrigerating sensor, and selecting a refrigerating correction coefficient A of a multifunctional chamber control parameter according to the current temperature interval:
a is a x (Ts-Tcs)/(Ts-Tr), a represents a parameter and takes different values according to the change of the environment temperature Ts;
when Ts < T1, let a be a1 × (Ts-Tcs)/(Ts-Tr), where a1 represents the first parameter and is between 0 and 1;
when T1 is less than or equal to Ts < T2, let A be a2 x (Ts-Tcs)/(Ts-Tr), wherein a2 represents the second parameter and falls between 0 and 1.5;
when T2 is less than or equal to Ts < T3, let A be a3 x (Ts-Tcs)/(Ts-Tr), wherein a3 represents a third parameter and is between 0 and 2;
when T3 is less than or equal to Ts < T4, let A be a4 x (Ts-Tcs)/(Ts-Tr), wherein a4 represents the fourth parameter and falls between 0 and 2.5;
when T4 is less than or equal to Ts < T5, let A be a5 x (Ts-Tcs)/(Ts-Tr), wherein a5 represents a fifth parameter and falls between 0 and 3;
when T5 is less than or equal to Ts, let A be a6 x (Ts-Tcs)/(Ts-Tr), wherein a6 represents the sixth parameter and is between 0 and 3.5;
wherein, T1 < T2 < T3 < T4 < T5 < 50 ℃ at 0 ℃;
and 3, measuring the temperature Tf of the freezing chamber by using a freezing sensor, and judging a temperature interval where the temperature Tf of the freezing chamber is located, so as to select a freezing correction coefficient B of a multifunctional chamber control parameter:
b × (C-Tf)/2; c represents a freezing parameter and belongs to the temperature range of-18 ℃ to-30 ℃; b represents another parameter: and takes different values according to the change of the temperature Tf of the freezing chamber;
when Tf > T6, b is 0;
when Tf is more than T7 and less than or equal to T6, b is between 0 and 1.0;
when Tf is more than T8 and less than or equal to T7, b is between 0 and 1.5;
when Tf is less than or equal to T8, b is between 0 and 2;
wherein T8 is more than or equal to-30 ℃ and more than T7 and more than T6 is less than-15 ℃;
and 4, outputting the final control parameters of the multifunctional chamber: the corrected startup point Tck 'is Tck + a + B, and the corrected shutdown point Tct' is Tct + a + B.
Compared with the prior art, the invention has the beneficial effects that:
the invention converts the influence of refrigeration and freezing on the temperature of the multifunctional chamber into a coefficient and adds the coefficient into the temperature control parameter of the multifunctional chamber, thereby solving the influence of the refrigeration chamber and the freezing chamber on the temperature of the multifunctional chamber, ensuring the accuracy of temperature control of the multifunctional chamber and effectively reducing the fluctuation of the temperature of the multifunctional chamber.
Drawings
FIG. 1 is a diagram of a control scheme in the prior art;
FIG. 2 is a schematic view of the interior of a prior art refrigerator;
FIG. 3 is a flow chart of a control method of the present invention;
reference numbers in the figures: 1, a refrigerating chamber; 2 a multifunctional chamber; 3, freezing chamber; 4, foaming an interlayer; 5, refrigerating air doors; 6 a multifunctional chamber air door; 7 ring temperature sensor; 8, a refrigeration sensor; 9 a multifunctional sensor; 10 a freeze sensor.
Detailed Description
In this embodiment, as shown in fig. 3, a method for controlling a multifunctional compartment of a refrigerator is performed according to the following steps:
step 1, measuring an environment temperature Ts by using an environment temperature sensor 7, setting a temperature Tcs according to a multifunctional chamber 2, and selecting an initial control parameter: a starting point Tck and a stopping point Tct;
step 2, measuring the temperature Tr of the refrigerating chamber 1 by using a refrigerating sensor 8, and selecting a refrigerating correction coefficient A of the multifunctional chamber control parameter according to the current temperature interval:
a is a x (Ts-Tcs)/(Ts-Tr), a represents a parameter and takes different values according to the change of the environment temperature Ts;
when Ts < T1 ℃, let a be a1 × (Ts-Tcs)/(Ts-Tr), wherein a1 represents the first parameter and falls between 0 and 1;
when T1 ≦ Ts < T2 ℃, let A be a2 × (Ts-Tcs)/(Ts-Tr), wherein a2 represents the second parameter and is between 0 and 1.5;
when T2 ≦ Ts < T3 ℃, let A be a3 × (Ts-Tcs)/(Ts-Tr), wherein a3 represents the third parameter and is between 0 and 2;
when T3 ≦ Ts < T4 ℃, let A ═ a4 × (Ts-Tcs)/(Ts-Tr), where a4 represents the fourth parameter and is between 0 and 2.5;
when T4 ≦ Ts < T5 ℃, let A be a5 × (Ts-Tcs)/(Ts-Tr), wherein a5 represents the fifth parameter and is between 0 and 3;
when T5 ℃ is less than or equal to Ts, let A be a6 × (Ts-Tcs)/(Ts-Tr), wherein a6 represents the sixth parameter and falls between 0 and 3.5;
wherein, T1 < T2 < T3 < T4 < T5 < 50 ℃ at 0 ℃; in this example, T1 ═ 8 ℃; t2 ═ 14 ℃; t3 ═ 20 ℃; t4 ═ 28 ℃; t5 ═ 35 ℃;
step 3, measuring the temperature Tf of the freezing chamber by using the freezing sensor 10, and judging the temperature interval where the temperature Tf of the freezing chamber is located, so as to select a freezing correction coefficient B of the multifunctional chamber control parameter:
b × (C-Tf)/2; wherein C represents a freezing parameter and belongs to the temperature range of-18 ℃ to-30 ℃; b represents another parameter;
when Tf > T6 ℃, b is 0;
when Tf is more than T7 and less than or equal to T6 ℃, b is between 0 and 1.0;
when Tf is more than T8 and less than or equal to T7 ℃, b is between 0 and 1.5;
when Tf is less than or equal to T8 ℃, b is between 0 and 2;
wherein T8 is more than or equal to-30 ℃ and more than T7 and more than T6 is less than-15 ℃; in this example, T8 ═ 22 ℃; t7 ═ 20 ℃; t6 ═ 18 ℃;
and 4, outputting the final control parameters of the multifunctional chamber 2: making the corrected startup point Tck ═ Tck + a + B, and the corrected shutdown point Tct ═ Tct + a + B;
by the control method, the influence of the refrigerating chamber and the freezing chamber on the temperature of the multifunctional chamber can be effectively avoided, and the temperature control accuracy of the multifunctional chamber is ensured.

Claims (1)

1. A control method for a multifunctional chamber of a refrigerator is characterized by comprising the following steps:
step 1, measuring an environment temperature Ts by using an environment temperature sensor, and selecting an initial control parameter according to a set temperature Tcs of a multifunctional chamber: a starting point Tck and a stopping point Tct;
step 2, measuring the temperature Tr of the refrigerating chamber by using a refrigerating sensor, and selecting a refrigerating correction coefficient A of a multifunctional chamber control parameter according to the current temperature interval:
a is a x (Ts-Tcs)/(Ts-Tr), a represents a parameter and takes different values according to the change of the environment temperature Ts;
when Ts < T1, let a be a1 × (Ts-Tcs)/(Ts-Tr), where a1 represents the first parameter and is between 0 and 1;
when T1 is less than or equal to Ts < T2, let A be a2 x (Ts-Tcs)/(Ts-Tr), wherein a2 represents the second parameter and falls between 0 and 1.5;
when T2 is less than or equal to Ts < T3, let A be a3 x (Ts-Tcs)/(Ts-Tr), wherein a3 represents a third parameter and is between 0 and 2;
when T3 is less than or equal to Ts < T4, let A be a4 x (Ts-Tcs)/(Ts-Tr), wherein a4 represents the fourth parameter and falls between 0 and 2.5;
when T4 is less than or equal to Ts < T5, let A be a5 x (Ts-Tcs)/(Ts-Tr), wherein a5 represents a fifth parameter and falls between 0 and 3;
when T5 is less than or equal to Ts, let A be a6 x (Ts-Tcs)/(Ts-Tr), wherein a6 represents the sixth parameter and is between 0 and 3.5;
wherein, T1 < T2 < T3 < T4 < T5 < 50 ℃ at 0 ℃;
and 3, measuring the temperature Tf of the freezing chamber by using a freezing sensor, and judging a temperature interval where the temperature Tf of the freezing chamber is located, so as to select a freezing correction coefficient B of a multifunctional chamber control parameter:
b × (C-Tf)/2; c represents a freezing parameter and belongs to the temperature range of-18 ℃ to-30 ℃; b represents another parameter: and takes different values according to the change of the temperature Tf of the freezing chamber;
when Tf > T6, b is 0;
when Tf is more than T7 and less than or equal to T6, b is between 0 and 1.0;
when Tf is more than T8 and less than or equal to T7, b is between 0 and 1.5;
when Tf is less than or equal to T8, b is between 0 and 2;
wherein T8 is more than or equal to-30 ℃ and more than T7 and more than T6 is less than-15 ℃;
and 4, outputting the final control parameters of the multifunctional chamber: the corrected startup point Tck 'is Tck + a + B, and the corrected shutdown point Tct' is Tct + a + B.
CN202011335516.3A 2020-11-25 2020-11-25 Control method for multifunctional chamber of refrigerator Active CN112240677B (en)

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CN113587521A (en) * 2021-07-19 2021-11-02 珠海格力电器股份有限公司 Refrigerator cold storage chamber temperature control method and device, refrigerator and storage medium

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