A variable air volume control method based on a rotatable damper, and a refrigerator

Abstract

The present invention discloses a variable air volume control method based on a rotatable damper and a refrigerator, comprising: detecting whether a refrigeration chamber has a cooling demand, and generating a refrigeration command when the refrigeration chamber has a cooling demand; based on the refrigeration command, controlling a rotatable damper pre-set at an air inlet to fully open and operate for a first predetermined time; detecting the refrigerator's refrigeration chamber temperature in real time, searching for a preset rotatable damper opening angle value corresponding to the refrigeration chamber temperature based on the refrigeration chamber temperature, and controlling and adjusting the opening angle of the rotatable damper set at the air inlet in real time, wherein the opening angle of the rotatable damper is directly proportional to the refrigeration chamber temperature. By controlling the size of the air inlet damper opening to control the temperature in the refrigeration chamber, the air inlet volume can be adjusted to different sizes as the ambient temperature changes, maintaining the temperature in the refrigeration chamber at a target temperature with minimal temperature fluctuations, thereby facilitating food preservation and providing convenience for users.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a variable air volume adjustment control method based on a rotatable air door and a refrigerator. Background Art

[0002] With the development of science and technology and the continuous improvement of people's living standards, the use of refrigerators has become more and more popular. Refrigerators have become an indispensable household appliance in people's lives, and basically every household uses a refrigerator.

[0003] In existing air-cooled refrigerators, the damper that controls the air volume in the refrigerator compartment is a stepper motor located at the air inlet. When the refrigerator compartment needs cooling, the stepper motor controls the damper to open at a 90° angle. Once the damper is open, the damper's opening remains constant, and the air volume remains constant at a constant wind speed, making it difficult to adjust and control the air volume in the refrigerator compartment. This type of air inlet damper can only control the temperature in the refrigerator compartment by fully opening or closing the damper. This results in a significant temperature difference between opening and closing the damper, and the average indoor temperature is maintained by varying the opening time as the ambient temperature fluctuates, which is detrimental to preserving food in the refrigerator compartment.

[0004] Therefore, the existing technology still needs to be improved and enhanced. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a variable air volume control method and refrigerator based on a rotatable damper in response to the above-mentioned defects of the prior art. The present invention solves the problem that the temperature in the cold storage room can only be controlled by controlling the full opening or closing of the air inlet door in current air-cooled refrigerators, the indoor temperature difference between opening and closing is large, the electric damper wastes cooling capacity at low ambient temperatures, and the damper cannot be controlled at an adjustable angle. The present invention can achieve precise control of the temperature in the cold storage room with small temperature fluctuations through continuous air intake with a variable air volume; the opening size can be arbitrarily adjusted within the specifications of the damper. Such a control method can maintain a constant temperature in the cold storage room, which is beneficial for preserving freshness.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0007] A variable air volume control method based on a rotatable damper, wherein the method comprises:

[0008] Detect whether there is a cooling demand in the cold storage room, and generate a cooling instruction when there is a cooling demand in the cold storage room;

[0009] Based on the refrigeration instruction of the refrigeration chamber, controlling the rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time;

[0010] The temperature of the refrigerator's cold storage compartment is detected in real time. According to the cold storage compartment temperature, a preset rotatable damper opening angle value corresponding to the cold storage compartment temperature is found. The opening angle of the rotatable damper arranged at the air inlet is controlled and adjusted in real time. The opening angle of the rotatable damper is directly proportional to the cold storage compartment temperature.

[0011] The variable air volume control method based on a rotatable damper, wherein, after the step of real-time control and adjustment of the opening angle of the rotatable damper provided at the air inlet, further comprises:

[0012] When a defrost control instruction is detected, the opening of the rotatable damper arranged at the air inlet is controlled to be fully closed to enter the defrost process.

[0013] The variable air volume control method based on the rotatable damper, wherein the step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand, comprises:

[0014] A rotatable damper with adjustable air outlet size and angle is pre-installed at the air inlet of the refrigerator's refrigerator compartment.

[0015] The variable air volume control method based on the rotatable damper, wherein the step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand, comprises:

[0016] A first temperature sensor, a second temperature sensor, and a third temperature sensor are respectively arranged at the upper part, the middle part, and the lower part of the refrigerating chamber of the refrigerator.

[0017] The variable air volume control method based on the rotatable damper, wherein the step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand, comprises:

[0018] The corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the refrigerating chamber is preset, that is, the damper opening angle value corresponding to the temperature of the refrigerating chamber is set.

[0019] In the variable air volume control method based on a rotatable damper, the step of detecting the temperature of the refrigerator compartment in real time comprises:

[0020] The first temperature sensor, the second temperature sensor, and the third temperature sensor are respectively arranged at the upper part, the middle part, and the lower part of the refrigerator compartment to obtain a first temperature of the upper part, a second temperature of the middle part, and a third temperature of the lower part of the refrigerator compartment;

[0021] Calculating an average temperature of the first temperature, the second temperature, and the third temperature as the refrigerating chamber temperature, wherein the refrigerating chamber temperature is controlled within a range of 1-9.9° C.;

[0022] The opening angle of the rotatable damper is directly proportional to the temperature of the refrigerating chamber.

[0023] The variable air volume control method based on a rotatable damper, wherein the step of searching for a preset damper opening angle value corresponding to the refrigerating chamber temperature according to the refrigerating chamber temperature and controlling and adjusting the opening angle of the rotatable damper provided at the air inlet in real time includes:

[0024] Obtaining the temperature of the refrigeration chamber;

[0025] According to the refrigeration chamber temperature, searching for a preset damper opening angle value corresponding to the refrigeration chamber temperature, wherein each refrigeration chamber temperature point corresponds to a damper opening angle;

[0026] The opening angle of the rotatable damper arranged at the air inlet is controlled and adjusted in real time to be the damper opening angle corresponding to the temperature of the refrigerating chamber.

[0027] A variable air volume control device based on a rotatable damper, comprising:

[0028] The first pre-setting module is used to pre-set a rotatable damper with adjustable air outlet size and angle at the air inlet of the refrigerator;

[0029] A second pre-setting module is used to pre-set a first temperature sensor, a second temperature sensor, and a third temperature sensor at the upper, middle, and lower parts of the refrigerator compartment, respectively;

[0030] A third presetting module is used to pre-set the corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the refrigerating chamber, that is, to set the opening angle value of the rotatable damper corresponding to the temperature of the refrigerating chamber;

[0031] The refrigeration instruction detection module is used to detect whether the refrigeration room has a refrigeration demand, and generate a refrigeration instruction for the refrigeration room when the refrigeration room has a refrigeration demand;

[0032] A full-open control module, configured to control a rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time based on a refrigeration instruction for the refrigerated compartment;

[0033] The damper opening angle real-time adjustment module is used to detect the refrigerator compartment temperature in real time, find the preset rotatable damper opening angle value corresponding to the refrigeration compartment temperature according to the refrigeration compartment temperature, and control and adjust the opening angle of the rotatable damper provided at the air inlet in real time;

[0034] The defrost control module is used to control the opening of the rotatable air door set at the air inlet to be fully closed when a defrost control instruction is detected to enter the defrost process.

[0035] A refrigerator, wherein the refrigerator includes a memory, a processor, and a variable air volume adjustment control program based on a rotatable damper stored in the memory and runnable on the processor. When the processor executes the variable air volume adjustment control program based on the rotatable damper, the steps of any of the variable air volume adjustment control methods based on the rotatable damper as described above are implemented.

[0036] A computer-readable storage medium, wherein a refrigerator fault detection operation control program is stored on the computer-readable storage medium. When the refrigerator fault detection operation control program is executed by a processor, the steps of the variable air volume adjustment control method based on a rotatable damper as described above are implemented.

[0037] Beneficial effects: Compared with the prior art, the present invention provides a variable air volume control method based on a rotatable damper. The present invention adopts the refrigeration control of the refrigerator compartment through air intake control, that is, the temperature in the refrigerator compartment is controlled by the damper set at the air inlet. When the refrigerator compartment needs to be refrigerated, the refrigerator main control first detects the ambient temperature, and adjusts the opening angle of the rotatable damper at the air inlet according to the detected ambient temperature, that is, adjusts the opening size of the refrigerator compartment air inlet. When the ambient temperature is low, the opening is small, and the heat exchange amount becomes smaller; when the ambient temperature is high, the opening is large, and the heat exchange amount is large. The present invention controls the temperature in the refrigerator compartment by controlling the size of the air inlet damper opening. Different air intake sizes can be adjusted as the ambient temperature changes, so that the temperature in the refrigerator compartment meets the target temperature and the temperature fluctuation is small, which is beneficial to food preservation, providing convenience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The present invention provides a flow chart of a variable air volume control method based on a rotatable damper.

[0039] Figure 2 A schematic diagram of the air inlet of a variable air volume control method based on a rotatable damper provided in an embodiment of the present invention.

[0040] Figure 3 A schematic diagram of a fully open rotatable damper at an air inlet in a variable air volume control method based on a rotatable damper provided in an embodiment of the present invention.

[0041] Figure 4 Schematic diagram of fully closing the rotatable damper opening at the air inlet of the variable air volume adjustment control method based on the rotatable damper provided by an embodiment of the present invention.

[0042] Figure 5 A detailed flow chart of a variable air volume control method based on a rotatable damper provided in an embodiment of the present invention.

[0043] Figure 6A schematic diagram of a module of a variable air volume control device based on a rotatable damper provided in an embodiment of the present invention.

[0044] Figure 7 This is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] In existing air-cooled refrigerators, the damper that controls the air volume in the refrigerator compartment uses a stepper motor, located at the air inlet. When the refrigerator compartment needs cooling, the stepper motor controls the damper to open at a 90° angle. The damper opening size is fixed after the motor is selected and remains constant after opening. With a constant air speed, the air volume also remains constant. This type of air inlet damper controls the temperature in the refrigerator compartment solely by opening and closing the damper. This results in a significant temperature difference between opening and closing the damper. Maintaining the average indoor temperature depends on the duration of the damper opening as the ambient temperature fluctuates, which is detrimental to preserving food in the refrigerator compartment.

[0049] In order to solve the above problems, an embodiment of the present invention provides a variable air volume regulation control method based on a rotatable damper. The present invention adopts the refrigeration control of the cold storage room through air intake control, that is, the temperature in the cold storage room is controlled by the damper set at the air inlet; when the cold storage room needs to be refrigerated, the refrigerator main control first detects the ambient temperature, and adjusts the opening angle of the rotatable damper of the air inlet according to the detected ambient temperature, that is, adjusts the opening size of the cold storage room air inlet. When the ambient temperature is low, the opening is small, and the heat exchange amount becomes smaller; when the ambient temperature is high, the opening is large, and the heat exchange amount is large. Continuous air intake with a variable air intake volume can achieve precise control of the temperature in the cold storage room with small temperature fluctuations; the opening size can be arbitrarily adjusted within the specifications of the damper. Such a control method can keep the temperature in the cold storage room constant, which is conducive to preservation and provides convenience for users.

[0050] method Example

[0051] like Figure 1 As shown in , an embodiment of the present invention provides a variable air volume control method based on a rotatable damper, which can be used in a refrigerator. In an embodiment of the present invention, the method includes the following steps:

[0052] Step S100: Detect whether the refrigeration compartment has a cooling demand, and generate a refrigeration instruction if the refrigeration compartment has a cooling demand;

[0053] In the embodiment of the present invention, the following is included before specific implementation:

[0054] A rotatable damper with adjustable air outlet angle is installed at the air inlet of the refrigerator compartment in advance. Figure 2 As shown, wherein the adjustable angle range of the rotatable damper is 0° to 90°;

[0055] A first temperature sensor, a second temperature sensor, and a third temperature sensor are respectively arranged at the upper, middle, and lower parts of the refrigerator compartment of the refrigerator in advance, and the first temperature sensor, the second temperature sensor, and the third temperature sensor detect the temperature inside the refrigerator compartment in real time;

[0056] Based on the above-mentioned pre-set rotatable damper and the first temperature sensor, the second temperature sensor, and the third temperature sensor, the corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the cold storage chamber is also pre-set, that is, the opening angle value of the rotatable damper corresponding to the temperature of the cold storage chamber is set, wherein each of the cold storage chamber temperatures corresponds to a rotatable damper opening angle value.

[0057] In an embodiment of the present invention, during specific implementation, the temperature in the refrigerating chamber is monitored in real time by the first temperature sensor, the second temperature sensor, and the third temperature sensor pre-arranged in the upper, middle, and lower parts of the refrigerating chamber of the refrigerator, and the first temperature in the upper part, the second temperature in the middle, and the third temperature in the lower part of the refrigerating chamber are respectively obtained. The average temperature of the first temperature, the second temperature, and the third temperature is calculated as the refrigerating chamber temperature, and the refrigerating chamber temperature is controlled between 1°C and 9.9°C; when the refrigerating chamber is operated for the first time or more food is put in, or things with higher temperature are put in, the refrigerating chamber temperature is higher than 9°C, and it is detected that the refrigerating chamber has a cooling demand, then a refrigerating chamber cooling instruction is issued.

[0058] Step S200: Based on the refrigeration instruction of the refrigerating chamber, controlling the rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time;

[0059] In the embodiment of the present invention, when the main board receives the refrigeration command issued by the refrigerator compartment, the main board feedback information controls the rotatable damper pre-set at the air inlet to fully open (the opening angle of the rotatable damper is 90 degrees) and run for the first predetermined time, referring to Figure 3 As shown, the first predetermined time is 2 hours; when the rotatable damper pre-set at the air inlet is fully opened and runs for the first predetermined time, the temperature of the refrigerating chamber is controlled at 1°C to 9.9°C.

[0060] Step S300: detecting the temperature of the refrigerator compartment in real time, searching for a preset rotatable damper opening angle value corresponding to the refrigerating compartment temperature based on the refrigerating compartment temperature, and controlling and adjusting the opening angle of the rotatable damper provided at the air inlet in real time, wherein the opening angle of the rotatable damper is directly proportional to the refrigerating compartment temperature;

[0061] In the embodiment of the present invention, the refrigerator compartment temperature is detected in real time during implementation. According to the refrigerator compartment temperature, a preset rotatable damper opening angle value corresponding to the refrigerator compartment temperature is searched. For details, reference is made to the corresponding relationship table of refrigerator compartment temperature and rotatable damper opening angle shown in Table 1.

[0062] Table 1

[0063]

[0064]

[0065] Based on the table of correspondences between refrigerator compartment temperature and rotatable damper opening angles shown in Table 1, the preset rotatable damper opening angle value corresponding to the refrigerator compartment temperature is found, and the opening angle of the rotatable damper at the air inlet is controlled and adjusted in real time. The opening angle of the rotatable damper is directly proportional to the refrigerator compartment temperature. The higher the refrigerator compartment temperature, the larger the rotatable damper opening angle, which reduces the amount of heat exchange at the air inlet. The lower the refrigerator compartment temperature, the smaller the rotatable damper opening angle, which increases the amount of heat exchange at the air inlet. For example, when the refrigerator compartment temperature reaches 1°C, the rotatable damper opening angle is 1°; when the refrigerator compartment temperature reaches 9°C, the rotatable damper opening angle is 81°. By adjusting the rotatable damper opening angle in real time, the refrigerator compartment temperature is precisely controlled, and the air intake volume is adjusted according to changes in the ambient temperature. This maintains the refrigerator compartment temperature at the target temperature with minimal temperature fluctuations, which is beneficial for food preservation.

[0066] In a further embodiment of the present invention, Figure 5 As shown, the step S300 may further include:

[0067] Step S400: When a defrost control instruction is detected, the rotatable damper provided at the air inlet is controlled to be fully closed to enter the defrost process.

[0068] Specifically, when the defrost control instruction is detected, the present invention enters the defrost process, at which time the rotatable damper provided at the air inlet is controlled to be fully closed (the rotatable damper opening angle is 0°), referring to Figure 4 As shown, the high temperature in the evaporator air duct is prevented from entering the refrigerator compartment through the air inlet, which will not cause the temperature in the refrigerator compartment to rise and is conducive to keeping food fresh.

[0069] Furthermore, after defrosting is completed, the refrigerator re-enters the refrigeration program, as described above.

[0070] As can be seen from the above, the variable air volume control method based on the rotatable damper of the embodiment of the present invention controls the refrigeration of the refrigerator compartment through air intake control, that is, the temperature in the refrigerator compartment is controlled by the damper set at the air inlet; when the refrigerator compartment needs to be refrigerated, the refrigerator main control first detects the ambient temperature, and adjusts the opening angle of the rotatable damper of the air inlet according to the detected ambient temperature, that is, adjusts the opening size of the refrigerator compartment air inlet. When the ambient temperature is low, the opening is small, and the heat exchange amount becomes small; when the ambient temperature is high, the opening is large, and the heat exchange amount is large. The present invention controls the temperature in the refrigerator compartment by controlling the size of the air inlet damper opening. Different air intake sizes can be adjusted as the ambient temperature changes, so as to keep the temperature in the refrigerator compartment to meet the target temperature and with small temperature fluctuations, which is beneficial to food preservation and provides convenience for users.

[0071] Device embodiment

[0072] like Figure 6 As shown in , an embodiment of the present invention provides a variable air volume control device based on a rotatable damper, comprising:

[0073] The first pre-setting module 10 is used to pre-set a rotatable damper with adjustable air outlet size and angle at the air inlet of the refrigerator;

[0074] The second pre-setting module 20 is used to pre-set a first temperature sensor, a second temperature sensor, and a third temperature sensor at the upper, middle, and lower parts of the refrigerator compartment, respectively;

[0075] The third presetting module 30 is used to pre-set the corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the refrigerating chamber, that is, to set the opening angle value of the rotatable damper corresponding to the temperature of the refrigerating chamber;

[0076] A refrigeration instruction detection module 40 is used to detect whether the refrigeration chamber has a refrigeration demand, and generate a refrigeration instruction for the refrigeration chamber when the refrigeration chamber has a refrigeration demand;

[0077] The full-open control module 50 is used to control the rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time based on the refrigeration instruction of the refrigeration chamber;

[0078] The adjustable damper opening angle real-time adjustment module 60 is used to detect the refrigerator compartment temperature in real time, find the preset rotatable damper opening angle value corresponding to the refrigeration compartment temperature according to the refrigeration compartment temperature, and control and adjust the opening angle of the rotatable damper provided at the air inlet in real time;

[0079] The defrost control module 70 is used to control the opening of the rotatable damper provided at the air inlet to be fully closed when a defrost control instruction is detected, so as to enter the defrost process, as described above.

[0080] Based on the above embodiment, the present invention further provides a refrigerator. The refrigerator in the embodiment of the present invention may be a smart refrigerator, and its principle block diagram may be as follows: Figure 7As shown. The refrigerator includes a processor, a memory, a network interface, and a display screen connected via a system bus. The processor of the refrigerator is used to provide computing and control capabilities. The memory of the refrigerator includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the refrigerator is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a variable air volume adjustment control based on a rotatable damper is implemented. The display screen of the refrigerator can be a liquid crystal display.

[0081] Those skilled in the art will understand that Figure 7 The principle block diagram is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation on the refrigerator to which the solution of the present invention is applied. A specific refrigerator may include more or fewer components than those in the figure, or combine certain components or have a different component arrangement.

[0082] In one embodiment, a refrigerator is provided. The refrigerator includes a memory, a processor, and a variable air volume control program based on a rotatable damper stored on and executable on the processor. The program performs the following steps:

[0083] Detect whether there is a cooling demand in the cold storage room, and generate a cooling instruction when there is a cooling demand in the cold storage room;

[0084] Based on the refrigeration instruction of the refrigeration chamber, controlling the rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time;

[0085] The temperature of the refrigerator's cold storage compartment is detected in real time. According to the cold storage compartment temperature, a preset rotatable damper opening angle value corresponding to the cold storage compartment temperature is found. The opening angle of the rotatable damper arranged at the air inlet is controlled and adjusted in real time. The opening angle of the rotatable damper is directly proportional to the cold storage compartment temperature.

[0086] Wherein, after the step of controlling and adjusting the opening angle of the rotatable damper provided at the air inlet in real time, the method further comprises:

[0087] When a defrost control instruction is detected, the opening of the rotatable damper arranged at the air inlet is controlled to be fully closed to enter the defrost process.

[0088] The step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand includes:

[0089] A rotatable damper with adjustable air outlet size and angle is pre-installed at the air inlet of the refrigerator's refrigerator compartment.

[0090] The step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand includes:

[0091] A first temperature sensor, a second temperature sensor, and a third temperature sensor are respectively arranged at the upper part, the middle part, and the lower part of the refrigerating chamber of the refrigerator.

[0092] The step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand includes:

[0093] The corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the refrigerating chamber is preset, that is, the damper opening angle value corresponding to the temperature of the refrigerating chamber is set.

[0094] The step of detecting the temperature of the refrigerator compartment in real time includes:

[0095] The first temperature sensor, the second temperature sensor, and the third temperature sensor are respectively arranged at the upper part, the middle part, and the lower part of the refrigerator compartment to obtain a first temperature of the upper part, a second temperature of the middle part, and a third temperature of the lower part of the refrigerator compartment;

[0096] Calculating an average temperature of the first temperature, the second temperature, and the third temperature as the refrigerating chamber temperature, wherein the refrigerating chamber temperature is controlled within a range of 1-9.9° C.;

[0097] The opening angle of the rotatable damper is directly proportional to the temperature of the refrigerating chamber.

[0098] The step of searching for a preset damper opening angle value corresponding to the temperature of the refrigerating chamber according to the temperature of the refrigerating chamber and controlling and adjusting the opening angle of the rotatable damper provided at the air inlet in real time includes:

[0099] Obtaining the temperature of the refrigeration chamber;

[0100] According to the refrigeration chamber temperature, searching for a preset damper opening angle value corresponding to the refrigeration chamber temperature, wherein each refrigeration chamber temperature point corresponds to a damper opening angle;

[0101] The opening angle of the rotatable damper arranged at the air inlet is controlled and adjusted in real time to be the damper opening angle corresponding to the temperature of the refrigerating chamber.

[0102] Those skilled in the art will appreciate that all or part of the processes in the above-described embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the above-described embodiments. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct RAM bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0103] In summary, the present invention discloses a variable air volume regulation control method and refrigerator based on a rotatable damper. Since the refrigeration control of the refrigerator compartment is controlled by air intake control, that is, the temperature in the refrigerator compartment is controlled by a damper set at the air inlet; when the refrigerator compartment needs to be refrigerated, the refrigerator main control first detects the ambient temperature, and adjusts the opening angle of the rotatable damper of the air inlet according to the detected ambient temperature, that is, adjusts the opening size of the refrigerator compartment air inlet. When the ambient temperature is low, the opening is small, and the heat exchange amount becomes smaller; when the ambient temperature is high, the opening is large, and the heat exchange amount is large. Continuous air intake with a variable air intake volume can achieve precise control of the temperature in the refrigerator compartment with small temperature fluctuations; the opening size can be arbitrarily adjusted within the specifications of the damper. Such a control method can keep the temperature in the refrigerator compartment constant, which is beneficial to preserving freshness and provides convenience for users.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A variable air volume control method based on a rotatable damper, characterized in that: The method comprises: A rotatable damper with adjustable air outlet size and angle is pre-installed at the air inlet of the refrigerator compartment; Presetting the corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the refrigerating chamber, that is, setting the damper opening angle value corresponding to the temperature of the refrigerating chamber; Adjusting the opening angle of the rotatable damper according to the detected ambient temperature; Detect whether there is a cooling demand in the cold storage room, and generate a cooling instruction when there is a cooling demand in the cold storage room; Based on the refrigeration instruction of the refrigeration chamber, controlling the rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time; Real-time detection of the refrigerator compartment temperature of the refrigerator, searching for a preset rotatable damper opening angle value corresponding to the refrigeration compartment temperature according to the refrigeration compartment temperature, and real-time control and adjustment of the opening angle of the rotatable damper provided at the air inlet, wherein the opening angle of the rotatable damper is directly proportional to the refrigeration compartment temperature; The step of searching for a preset damper opening angle value corresponding to the refrigerating chamber temperature according to the refrigerating chamber temperature and controlling and adjusting the opening angle of the rotatable damper provided at the air inlet in real time comprises: Obtaining the temperature of the refrigeration chamber; According to the refrigeration chamber temperature, searching for a preset damper opening angle value corresponding to the refrigeration chamber temperature, wherein each refrigeration chamber temperature point corresponds to a damper opening angle; The opening angle of the rotatable damper arranged at the air inlet is controlled and adjusted in real time to be the damper opening angle corresponding to the temperature of the refrigerating chamber.

2. The variable air volume control method based on a rotatable damper according to claim 1, characterized in that: After the step of controlling and adjusting the opening angle of the rotatable damper provided at the air inlet in real time, the method further comprises: When a defrost control instruction is detected, the opening of the rotatable damper arranged at the air inlet is controlled to be fully closed to enter the defrost process.

3. The variable air volume control method based on a rotatable damper according to claim 1, characterized in that: The step of detecting whether the refrigerating chamber has a cooling demand and generating a refrigerating chamber cooling instruction when the refrigerating chamber has a cooling demand includes: A first temperature sensor, a second temperature sensor, and a third temperature sensor are respectively arranged at the upper part, the middle part, and the lower part of the refrigerating chamber of the refrigerator.

4. The variable air volume control method based on a rotatable damper according to claim 1, characterized in that: The step of detecting the temperature of the refrigerator compartment in real time comprises: The first temperature sensor, the second temperature sensor, and the third temperature sensor are respectively arranged at the upper part, the middle part, and the lower part of the refrigerator compartment to obtain a first temperature of the upper part, a second temperature of the middle part, and a third temperature of the lower part of the refrigerator compartment; Calculating an average temperature of the first temperature, the second temperature, and the third temperature as the refrigerating chamber temperature, wherein the refrigerating chamber temperature is controlled within a range of 1-9.9° C.; The opening angle of the rotatable damper is directly proportional to the temperature of the refrigerating chamber.

5. A variable air volume control device based on a rotatable damper, characterized in that: The variable air volume adjustment control device based on a rotatable damper is applied to the variable air volume adjustment control method based on a rotatable damper according to any one of claims 1 to 4, comprising: The first pre-setting module is used to pre-set a rotatable damper with adjustable air outlet size and angle at the air inlet of the refrigerator; A second pre-setting module is used to pre-set a first temperature sensor, a second temperature sensor, and a third temperature sensor at the upper, middle, and lower parts of the refrigerator compartment, respectively; A third presetting module is used to pre-set the corresponding relationship between the opening and closing angle of the rotatable damper and the temperature of the refrigerating chamber, that is, to set the opening angle value of the rotatable damper corresponding to the temperature of the refrigerating chamber; The refrigeration instruction detection module is used to detect whether the refrigeration room has a refrigeration demand, and generate a refrigeration instruction for the refrigeration room when the refrigeration room has a refrigeration demand; A full-open control module, configured to control a rotatable damper pre-set at the air inlet to fully open and operate for a first predetermined time based on a refrigeration instruction for the refrigerated compartment; The damper opening angle real-time adjustment module is used to detect the refrigerator compartment temperature in real time, find the preset rotatable damper opening angle value corresponding to the refrigeration compartment temperature according to the refrigeration compartment temperature, and control and adjust the opening angle of the rotatable damper provided at the air inlet in real time; The defrost control module is used to control the opening of the rotatable air door set at the air inlet to be fully closed when a defrost control instruction is detected to enter the defrost process.

6. A refrigerator, characterized in that: The refrigerator includes a memory, a processor, and a variable air volume adjustment control program based on a rotatable air door stored in the memory and runnable on the processor. When the processor executes the variable air volume adjustment control program based on a rotatable air door, the steps of the variable air volume adjustment control method based on a rotatable air door as described in any one of claims 1-4 are implemented.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a refrigerator fault detection and operation control program. When the refrigerator fault detection and operation control program is executed by the processor, the steps of the variable air volume adjustment control method based on the rotatable damper as described in any one of claims 1 to 4 are implemented.

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