CN109855364B - Self-adaptive rotary electric air door control method for refrigerator - Google Patents
Self-adaptive rotary electric air door control method for refrigerator Download PDFInfo
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- CN109855364B CN109855364B CN201910198458.5A CN201910198458A CN109855364B CN 109855364 B CN109855364 B CN 109855364B CN 201910198458 A CN201910198458 A CN 201910198458A CN 109855364 B CN109855364 B CN 109855364B
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Abstract
The invention discloses a self-adaptive rotary electric air door control method for a refrigerator, and relates to the technical field of refrigerator control. The invention comprises the following steps: when the refrigerator starts to refrigerate, the opening size of the rotary electric air door is 50% of that in a full-open state; step two: detecting and recording a cold room temperature T1 when a rotary electric air door of the refrigerator is opened and a cold room temperature T2 after a period of time T, and calculating the variation quantity delta T of the two temperatures, wherein the delta T is T1-T2; step three: and comparing the delta T value with a target value T to determine the maximum opening size of the rotary electric air door. The maximum value of the opening of the rotary electric air door is controlled by detecting the temperature variation of the cold chamber, so that the rotary electric air door can be installed and meet the refrigeration requirements of refrigerators with different volume sections, and the structural design standardization and universalization of the refrigerators are improved; meanwhile, the cold air is reasonably distributed, and the utilization rate of the cold air is improved, so that the aim of saving energy is fulfilled.
Description
Technical Field
The invention belongs to the technical field of refrigerator control, and particularly relates to a self-adaptive rotary electric air door control method for a refrigerator.
Background
With the increasingly fierce competition of household electrical appliances, the cost reduction of the product design is not slow. At present, the product design standardization and the universalization degree are low, the universalization level of parts is not enough, the cost of a single part is high or low, and great pressure is brought to the reduction of the total cost of the product.
Therefore, in order to solve the problem, the applicant provides a self-adaptive rotary electric air door control method applied to a refrigerator, and as the area of an air outlet of the self-adaptive rotary electric air door has the characteristic of linear adjustment, the maximum air outlet quantity in unit time is controlled by controlling the maximum opening area of the air outlet of the rotary electric air door, and by the characteristic, the self-adaptive rotary electric air door can be installed in refrigerators with different volume sections, but how to control the maximum air outlet quantity of the rotary electric air door according to the actual requirements of the refrigerators is achieved; and how to meet the requirement of quick refrigeration of each cold chamber of the refrigerator and reasonably distribute cold air to achieve the aim of saving energy is a problem to be solved urgently.
Disclosure of Invention
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a self-adaptive rotary electric air door control method for a refrigerator, which comprises the following steps:
the method comprises the following steps: when the refrigerator meets the refrigeration requirement, the opening size of the rotary electric air door is 50% of that of the full-open state when the refrigerator starts to refrigerate;
step two: detecting and recording the cold room temperature T1 when the rotary electric air door of the refrigerator is opened and the cold room temperature T2 after a period of time T, and calculating the variation quantity delta T of the two cold room temperatures, wherein the delta T is T1-T2;
step three: comparing the delta T value with a target value T to determine the maximum opening size of the rotary electric air door, which is as follows: wherein n is the upper and lower variation of the target value T;
when the delta T is less than T-n, the opening size of the rotary electric air door is controlled to be adjusted to 85% in a full-open state, the cold room temperature T3 is detected and recorded after a period of time T, and the change delta T 'of the cold room temperature is calculated, wherein the delta T' is T2-T3;
if the delta T' is less than T-n, the maximum opening size of the locking rotary type electric air door is in a full-open state, and a normal operation mode is entered; if the delta T' is not less than T-n, the maximum opening size of the locking rotary type electric air door is 75% in the full-open state, and the normal operation mode is entered;
when T-n is less than or equal to DeltaT is less than or equal to T + n, the maximum opening size of the locking air door is 50% in the full-open state, and a normal operation mode is entered;
and when the delta T is larger than T + n, the maximum opening size of the locking air door is 30% in a full-open state, and the normal operation mode is entered.
Further, after the rotary electric air door is locked in the maximum opening state, the size of the rotary electric air door can be linearly adjusted between 0 and the locked maximum opening state in the normal operation mode.
Further, in the second step and the third step, if the temperature of the cooling chamber reaches the set temperature within a period of time t, the corresponding rotary electric air door is closed.
Further, after entering the normal operation mode, detecting and recording the temperature T of the cold chamber at intervals of time TXAnd calculate TXDifference DeltaT from set temperatureXWill be Δ TXComparing with a set reference value A;
if Δ TXWhen the opening is larger than or equal to A, the rotary electric air door keeps the maximum opening state locked before; 0 & lt delta TXIf the opening degree of the rotary electric air door is less than A, the opening degree of the rotary electric air door is adjusted to be 50% of the maximum opening state locked before.
Further, when the cooling chamber temperature T is within the period of time TXWhen the set temperature is reached, the corresponding rotary electric air door is closed.
The invention has the following beneficial effects:
1. the invention reasonably controls the opening size of the air outlet of the rotary electric air door through the temperature variation in the cold chamber, so that the rotary electric air door better adapts to the rapid refrigeration requirements of refrigerators with different volume sections, and the adaptability of the rotary electric air door is improved.
2. The invention reasonably controls and locks the maximum opening size of the rotary electric air door through the temperature variation in the cold chamber, so that the cold air is reasonably distributed, the utilization rate of the cold air is improved, and the aim of saving energy is fulfilled.
3. The invention can realize the linear regulation of the opening size of the air outlet of the electric air door by controlling the rotary electric air door, the function integrates the characteristics of common large, medium and small electric air doors, and the rotary electric air door can replace all common electric air doors used in the prior refrigerator by accurate and reasonable control; for the parts of the electric air door, the universalization and the standardization are improved, and the purchase cost is reduced.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of an adaptive rotary electric damper control method for a refrigerator according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is a method for controlling an adaptive rotary electric damper for a refrigerator, including the steps of:
the method comprises the following steps: when the fact that the actual temperature in the cold chamber of the refrigerator is higher than the set temperature is detected, the refrigerator starts to refrigerate and enters an adjusting mode to control the rotary electric air door to be opened, and the opening size is 50% of the full-open state;
step two: detecting and recording the cold room temperature T1 when the rotary electric air door of the refrigerator is opened and the cold room temperature T2 after a period of time T, and calculating the variation quantity delta T of the two cold room temperatures, wherein the delta T is T1-T2; such as a period of time t of 5 minutes; t1 is 10 ℃, T2 is 9 ℃, and then Delta T is 1 ℃;
step three: comparing the delta T value with a target value T, wherein the target value T is a system set value, and determining the maximum opening size of the rotary electric air door, specifically as follows: where n is the upper and lower variation of the target value T, and if T is 3 and n is 1, T-n is 2 and T + n is 4.
Combining the step two, when the delta T is 1 and less than 2, controlling the opening size of the rotary electric air door to be adjusted to 85% in a full-open state, detecting and recording the cold chamber temperature T3 after 5 minutes, and if the T3 is 8 ℃, changing the cold chamber temperature delta T' ═ T2-T3; i.e. Δ T' is 1 ℃;
therefore, if delta T' is 1 < 2, the maximum opening size of the locking rotary type electric air door is in a full-open state, and the locking rotary type electric air door enters a normal operation mode until the temperature of a cold room reaches a set temperature;
if T3 is 6 ℃, when Delta T' is 3 ≧ 2, the maximum opening size of the locking rotary type electric air door is 75% in a full-open state, and the normal operation mode is carried out until the temperature of the cold room reaches the set temperature;
if T2 is 7 ℃, then < 2 > and < delta > T < 3 > and < 4 >, the maximum opening size of the locking air door is 50% in a full-open state, and the normal operation mode is carried out until the temperature of the cold chamber reaches the set temperature;
if T2 is 5 ℃, when delta T is 5 > 4, the maximum opening size of the locking air door is 30% in a full-open state, and the normal operation mode is carried out until the temperature of the cold room reaches the set temperature;
the size of the refrigerating requirement of the cold chamber and the size of the volume of the cold chamber are judged by detecting and calculating the variable quantity of the temperature in the cold chamber, so that the opening size of the air outlet of the rotary electric air door is reasonably controlled, the rotary electric air door can better adapt to the quick refrigerating requirement of refrigerators with different volume sections, such as large, medium and small, and the adaptability of the rotary electric air door is improved; meanwhile, the cold air is reasonably distributed, and the utilization rate of the cold air is improved, so that the aim of saving energy is fulfilled.
Preferably, after the rotary electric damper is locked in the maximum open state, the size of the rotary electric damper is linearly adjustable between 0 and the locked maximum open state in the normal operation mode.
And in the second step and the third step, if the temperature of the cooling chamber reaches the set temperature within a period of time t, the corresponding rotary electric air door is closed.
Preferably, after entering the normal operation mode, the temperature T of the cold chamber is detected and recorded once every time TXAnd calculate TXDifference DeltaT from set temperatureXWill be Δ TXWith a set reference value AComparing, wherein the reference value A is a set value of the system; if the period of time T' is 2 minutes, the reference value A is 2 ℃, the set temperature is 2 ℃, and T isXAt 4 ℃ and then. delta.TX＝4-2＝2℃；
If Δ TXWhen the temperature is not less than 2 ℃, the refrigerating requirement in the cold room is larger, and the rotary electric air door keeps the maximum opening state locked before;
if TXIs 3 ℃ and thenX＝3-2＝1℃，0＜△TXIf the maximum locked opening state is 50% of the full opening state, the opening size of the rotary electric air door is 25% of the full opening state at present; thereby further leading the cold air to be reasonably distributed and improving the utilization rate of the cold air.
Wherein the temperature T of the cooling chamber is set during a period of time TXWhen the set temperature is reached, the corresponding rotary electric air door is closed;
the reference value A can also be set into a plurality of range intervals such as 0-1, 1-2 and 2-3, and each range interval corresponds to the adjustment size of the rotary electric air door; the rotary electric air door is adjustable in multiple gears, the adjusting precision of the rotary electric air door is improved, and the cold air distribution rationality and the cold air distribution utilization rate are further improved.
In order to realize the control effect, the control system of the refrigerator comprises a temperature monitoring unit, wherein the temperature monitoring unit is a temperature sensor arranged in a refrigerating chamber;
the data processing unit is used for acquiring and processing the detection data of the temperature monitoring unit and then feeding back the processing result to the control unit;
and the control unit sends a control instruction according to the processing result to control or lock the maximum value of the air outlet of the self-adaptive rotary electric air door.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A self-adaptive rotary electric air door control method for a refrigerator is characterized by comprising the following steps:
the method comprises the following steps: when the refrigerator meets the refrigeration requirement, the opening size of the rotary electric air door is 50% of that of the full-open state when the refrigerator starts to refrigerate;
step two: detecting and recording the cold room temperature T1 when the rotary electric air door of the refrigerator is opened and the cold room temperature T2 after a period of time T, and calculating the variation quantity delta T of the two cold room temperatures, wherein the delta T is T1-T2;
step three: comparing the delta T value with a target value T to determine the maximum opening size of the rotary electric air door, which is as follows: wherein n is the upper and lower variation of the target value T;
a. when the delta T is less than T-n, the opening size of the rotary electric air door is controlled to be adjusted to 85% in a full-open state, the cold room temperature T3 is detected and recorded after a period of time T, and the change delta T 'of the cold room temperature is calculated, wherein the delta T' is T2-T3;
if the delta T' is less than T-n, the maximum opening size of the locking rotary type electric air door is in a full-open state, and a normal operation mode is entered; if the delta T' is not less than T-n, the maximum opening size of the locking rotary type electric air door is 75% in the full-open state, and the normal operation mode is entered;
b. when T-n is less than or equal to DeltaT is less than or equal to T + n, the maximum opening size of the locking air door is 50% in the full-open state, and a normal operation mode is entered;
c. and when the delta T is larger than T + n, the maximum opening size of the locking air door is 30% in a full-open state, and the normal operation mode is entered.
2. The adaptive rotary electric damper control method for a refrigerator according to claim 1, wherein the size of the rotary electric damper is linearly adjustable between 0 and the locked maximum opening state in the normal operation mode after the rotary electric damper is locked in the maximum opening state.
3. The method as claimed in claim 1, wherein in the second step and the third step, if the temperature of the cooling chamber reaches the set temperature within a period of time t, the corresponding rotary electric damper is closed.
4. The adaptive rotary electric damper control method for a refrigerator as claimed in claim 1, wherein the cold chamber temperature T is detected and recorded every a period of time T' after entering the normal operation modeXAnd calculate TXDifference DeltaT from set temperatureXWill be Δ TXComparing with a set reference value A;
if Δ TXWhen the opening is larger than or equal to A, the rotary electric air door keeps the maximum opening state locked before; 0 & lt delta TXIf the opening degree of the rotary electric air door is less than A, the opening degree of the rotary electric air door is adjusted to be 50% of the maximum opening state locked before.
5. The adaptive rotary electric damper control method for a refrigerator as claimed in claim 4, wherein the cooling chamber temperature T is set when the period T' is overXWhen the set temperature is reached, the corresponding rotary electric air door is closed.
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| CN201910198458.5A CN109855364B (en) | 2019-03-15 | 2019-03-15 | Self-adaptive rotary electric air door control method for refrigerator |
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| CN201910198458.5A CN109855364B (en) | 2019-03-15 | 2019-03-15 | Self-adaptive rotary electric air door control method for refrigerator |
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| CN109855364B true CN109855364B (en) | 2021-03-30 |
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| CN113959158A (en) * | 2021-10-26 | 2022-01-21 | Tcl家用电器（合肥）有限公司 | Refrigerator and control method thereof |
| CN114251909A (en) * | 2021-12-22 | 2022-03-29 | 长虹美菱股份有限公司 | Anti-freezing method for blades of rotary electric air door |
| CN114659329A (en) * | 2022-04-29 | 2022-06-24 | 长虹美菱股份有限公司 | Anti-freezing control method for electric air door |
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