CN110864478B

CN110864478B - Refrigeration control method of refrigerating chamber of refrigerator and refrigerator

Info

Publication number: CN110864478B
Application number: CN201810988649.7A
Authority: CN
Inventors: 唐松志; 王炎; 赵国良; 李春阳
Original assignee: Haier Smart Home Co Ltd
Current assignee: Haier Smart Home Co Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2021-04-23
Anticipated expiration: 2038-08-28
Also published as: CN110864478A

Abstract

The invention provides a refrigeration control method of a refrigerating chamber of a refrigerator and the refrigerator. Under the condition that the refrigerator refrigerating chamber is divided into a plurality of storage spaces, the light intensity of the position measured by the light sensing device arranged on the turnover vertical beam determines the use level of the volume of the refrigerating chamber and determines the storage space with the largest use volume, the running frequency of the compressor is controlled, and the air supply device is combined to accurately refrigerate the single storage space.

Description

Refrigeration control method of refrigerating chamber of refrigerator and refrigerator

Technical Field

The invention relates to the field of household appliances, in particular to a refrigeration control method for a refrigerating chamber of a refrigerator and the refrigerator.

Background

In the prior art, a refrigerator senses light intensity at a position of the refrigerator by using a light sensor arranged inside a refrigerating chamber, and uses a use volume of the refrigerating chamber reflected according to the light intensity as a basis for refrigeration control.

However, when the refrigerator is controlled by using such a control method, the light sensing device is arranged inside the refrigerating chamber and is easily completely or partially shielded by the articles in the refrigerating chamber, so that the use volume of the refrigerator detected by the light sensing device is inaccurate.

In addition, under the condition that the refrigerating chamber is divided into a plurality of relatively independent storage spaces by the storage partition plates, the temperature in the storage space in which articles are just put can be higher than that in other storage spaces, the whole refrigerating chamber needs to be refrigerated by using the conventional refrigerator temperature control method, and the single storage space cannot be independently supplied with air, so that the electric energy waste is caused. In addition, the temperature of the articles just put in is generally higher, and if the light sensing device of the existing refrigerator is covered by the articles in the refrigerating chamber, the refrigeration of the refrigerator is not accurate, and in the process, the temperature of the articles is possibly transmitted to other articles in contact with the articles, so that the temperature of the foods stored in the refrigerator is changed, the nutrition loss is caused, and the storage effect is reduced.

Disclosure of Invention

The invention aims to reduce the energy consumption of the refrigerator and improve the storage effect of food in the refrigerator.

The invention further solves the problem of inaccurate volume measurement caused by the fact that the light sensing device is shielded by food.

It is yet a further object of the present invention to provide an accurate algorithm for determining volumetric usage levels using a sensor device.

A further object of the present invention is to provide a method for determining the storage space with the largest volume using the light sensing device.

Particularly, the invention provides a refrigeration control method of a refrigerating chamber of a refrigerator. The refrigerator is limited with a refrigerating chamber, the refrigerator is also provided with a split door body for opening and closing the refrigerating chamber in a split mode, one door body on one side of the split door body is provided with an overturning vertical beam for sealing a gap in the middle of the split door body, the overturning vertical beam is provided with a light sensing device for detecting the light intensity of the position, and the method comprises the following steps: after a door closing signal of the refrigerating chamber is detected, starting the light sensing device, and obtaining the light intensity detected by the light sensing device; judging the use level of the volume of the refrigerating chamber according to the acquired light intensity; and correspondingly controlling the refrigerating system of the refrigerator according to the use grade.

Optionally, the refrigerating chamber is partitioned into a plurality of storage spaces, the number of the light sensing devices corresponds to the number of the storage spaces, the light sensing devices are arranged at intervals so that each light sensing device corresponds to one storage space, the refrigerator is provided with a branching air supply device, the branching air supply device is configured to distribute the refrigerating air flow from the compression type refrigerating system to the plurality of storage spaces, and the step of judging the use level of the volume of the refrigerating chamber according to the obtained light intensity comprises the following steps: and performing fusion calculation on the light intensity detected by the plurality of light sensing devices to determine the use level of the volume of the refrigerating chamber.

Optionally, after determining the usage level of the refrigerating chamber volume, the method further comprises: and judging the light intensity detected by the plurality of light sensing devices so as to judge the storage space with the largest use volume in the plurality of storage spaces.

Optionally, the method further comprises, after determining the storage space with the largest used volume among the plurality of storage spaces: and controlling a compressor of the compression type refrigerating system to operate at a frequency higher than the default frequency, and controlling the branch air supply device to independently supply air to the storage space with the largest volume, wherein the air supply time is set.

Optionally, the storage space includes a first storage space, a second storage space and a third storage space which are longitudinally arranged in sequence, and the step of judging the use level of the refrigerating chamber volume includes: sequentially judging the use level of the refrigerating chamber volume according to formulas 1 to 4, wherein the formula 1 is as follows:

A*S1_VOL^2+B*S3_VOL^2-C*S1_VOL+D*S3_VOL+E*S1_VOL*S3_VOL>9，

if the formula 1 is established, judging that the use level of the volume of the refrigerating chamber is less; equation 2 is:

A*S2_VOL^2+B*S3_VOL^2-C*S2_VOL-D*S3_VOL+E*S2_VOL*S3_VOL>9，

if the formula 2 is established, judging that the use level of the volume of the refrigerating chamber is less; equation 3 is:

a is S1_ VOL ^2+ B is S1_ VOL + C is S3_ VOL + D is S1_ VOL is S3_ VOL <7, if formula 3 holds,

judging that the use level of the volume of the refrigerating chamber is more; equation 4 is:

A*S2_VOL^2+B*S3_VOL^2-C*S2_VOL+D*S3_VOL-E*S2_VOL*S3_VOL<1，

if the formula 4 is established, judging that the use level of the volume of the refrigerating chamber is more, or judging that the use level of the volume of the refrigerating chamber is middle; in equations 1 to 4, A, B, C, D, E are constants stored in advance, and are determined by experimental statistics in advance, and S1_ VOL, S2_ VOL, and S3_ VOL are voltage values output after the light intensities detected by the photosensors corresponding to the first storage space, the second storage space, and the third storage space, respectively.

Optionally, after determining the usage level of the refrigerating chamber volume, determining the storage space with the largest usage volume by: when the usage level of the refrigerating chamber volume is large, formula 5 is judged: whether S1_ VOL + S2_ VOL < a is satisfied or not is judged, and if the formula 5 is satisfied, the maximum use volume of the first storage space is judged; if equation 5 does not hold, determine equation 6: whether S1_ VOL-S2_ VOL > b is satisfied or not is judged, if the formula 6 is satisfied, the use volume of the second storage space is judged to be the largest, and if the formula 6 is not satisfied, the formula 7 is judged: whether S1_ VOL + S2_ VOL > c and S1_ VOL-S2_ VOL < d are established or not is judged, and if the formula 7 is established, the maximum use volume of the third storage space is judged; if the formula 7 does not hold, the use volumes of the three storage spaces are judged to be approximately even; if the usage level of the refrigerating chamber volume is middle, formula 8 is judged: whether S1_ VOL < e is established or not is judged, and if the formula 8 is established, the maximum use volume of the first storage space is judged; if equation 8 does not hold, determine equation 9: whether S1_ VOL-S2_ VOL > f is satisfied or not is judged, if the formula 9 is satisfied, the use volume of the second storage space is judged to be the largest, and if the formula 9 is not satisfied, the formula 10 is judged: whether S1_ VOL > g, S1_ VOL-S2_ VOL < h and S3_ VOL < d are satisfied or not is judged, if the formula 10 is satisfied, the use volume of the third storage space is judged to be the largest, and if the formula 10 is not satisfied, the use volumes of the three storage spaces are judged to be approximately even; when the usage level of the refrigerating compartment volume is large, formula 11 is determined: whether S1_ VOL < j is satisfied or not, if formula 11 is satisfied, determining that the used volume of the first storage space is the largest, if formula 11 is not satisfied, determining whether formula 12 is satisfied or not, S1_ VOL-S2_ VOL > k, if formula 12 is satisfied, determining that the used volume of the second storage space is the largest, and if formula 12 is not satisfied, determining whether formula 13 is satisfied or not; if equation 13: whether S1_ VOL > m, S1_ VOL-S2_ VOL < d and S3_ VOL < p are satisfied or not is judged, if the formula 13 is satisfied, the maximum using volume of the third storage space is judged, and if the formula 13 is not satisfied, the using volumes of the three storage spaces are judged to be approximately even; in equations 5 to 13: a. b, c, d, e, f, g, h, j, k, m and p are all constants which are preserved in advance and are obtained through the statistics of experiments in advance.

Optionally, the calculating of the set time for the branched air blowing device to independently blow air in the storage space determined to have the largest usage volume includes: the mark value of the refrigerating chamber is set according to the use level of the refrigerating chamber volume, wherein the mark value is 2 when the use level of the refrigerating chamber volume is large; if the use level of the refrigerating chamber volume is middle, the marking value is 1; when the use level of the volume of the refrigerating chamber is less, the marking value is 0; according to equation 14: the set time is calculated as K (a × M-R × S) × Δ V × Y, in equation 14: t is set time, K, S, Y is a constant preserved in advance, and is obtained through advance experimental statistics; m is an environmental temperature value detected by a temperature sensor outside the refrigerator, and R is a temperature value detected by a temperature sensor in the refrigerating chamber of the refrigerator; and V is the volume of the refrigerating chamber.

Optionally, if it is determined that the used volumes of the three storage spaces are substantially equal, the compressor is controlled to operate at a default frequency.

Alternatively, the air supply device may be configured to separately allocate a cooling air flow for a set time to the storage space determined to have the largest usage volume, and then: and controlling the air supply device to simultaneously provide refrigerating airflow for each storage space. Acquiring the internal temperature of the refrigerating chamber, and judging whether a set shutdown point is reached according to the internal temperature; if not, controlling the compressor to run at a default frequency until the internal temperature reaches a shutdown point; if yes, the compressor is controlled to stop cooling the refrigerating chamber.

According to another aspect of the present invention, there is also provided a refrigerator having a refrigerating chamber, and the refrigerator including: the oppositely-opened door body is arranged corresponding to the refrigerating chamber and is configured to open and close the refrigerating chamber in an oppositely-opened mode, and the door body on one side of the oppositely-opened door body is provided with an overturning vertical beam so as to seal a gap in the middle of the oppositely-opened door body after the oppositely-opened door body is closed; the light sensing device is arranged on the overturning vertical beam and is configured to measure the direction towards the storage space in the closing state of the oppositely-opened door body so as to measure the light intensity of the position. And the refrigeration controller is arranged in the refrigerator and comprises a memory and a processor, wherein a computer program is stored in the memory, and the computer program is used for realizing the refrigeration control method of the refrigerating chamber when being executed by the processor.

According to the refrigeration control method of the refrigerating chamber of the refrigerator and the refrigerator, the light intensity of the position is measured through the light sensing device and used for judging the use level of the volume of the refrigerating chamber, and the running frequency of the compressor is controlled according to the use level of the volume of the refrigerating chamber to adjust the cold air supply quantity in the refrigerating chamber, so that the energy consumption of the refrigerator is effectively reduced, newly-placed normal-temperature articles can be quickly cooled, the influence of the articles with higher temperature on other stored articles is reduced, and the storage effect of the refrigerating chamber of the refrigerator is improved.

Further, according to the refrigeration control method of the refrigerator refrigerating chamber and the refrigerator, the light sensing device is arranged on the overturning vertical beam of the refrigerator with the oppositely-opened door body, and is positioned in the gap space of the oppositely-opened door body in the closed state of the oppositely-opened door body, so that the light sensing device cannot be directly shielded by articles in the refrigerating chamber, and the problem of inaccurate volume measurement caused by the fact that the light sensing device is shielded by food is avoided.

In addition, the invention further provides a precise algorithm for determining the volume use level by using the sensor, wherein the algorithm can judge the use level of the volume of the refrigerating chamber of the refrigerator and correspondingly control a refrigerating system of the refrigerator according to the use level of the volume of the refrigerating chamber.

Furthermore, the refrigerating control method of the refrigerating chamber of the refrigerator and the refrigerator are characterized in that the refrigerating chamber is divided into a plurality of storage spaces, the branching air supply device is arranged, the storage space with the largest use volume is judged according to the light intensity obtained by the light sensing device, the running frequency of the compressor is controlled, and the branching air supply device is used for accurately supplying air to the storage space with the largest use volume.

According to the formula provided by the invention, the use level of the volume of the refrigerating chamber is judged through the light intensity detected by the light sensing device, and the operation frequency of the compressor is controlled through the use level of the volume of the refrigerating chamber, so that the newly added articles in the refrigerating chamber of the refrigerator can be rapidly refrigerated. After the use level of the volume of the refrigerating chamber is determined, the storage space with the largest use volume can be determined, the quick refrigerating time required by the storage space with the largest use volume is calculated through a formula, not only is accurate air supply of the refrigerator realized, but also accurate control of the amount of cold air required by the storage space of the refrigerator is realized, and accurate control of the refrigerating space and time of the refrigerating chamber of the refrigerator is achieved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention in a plan view when a half-open door is in a closed state;

fig. 2 is a schematic view of a front view of a refrigerator according to an embodiment of the present invention when a half-open door is in a closed state;

FIG. 3 is a block diagram of electrical components of a refrigerator according to one embodiment of the present invention;

FIG. 4 is a flow chart of a refrigeration control method for a fresh food compartment of a refrigerator according to one embodiment of the present invention;

FIG. 5 is a flow chart of a refrigeration control method for a fresh food compartment of a refrigerator according to another embodiment of the present invention;

FIG. 6 is a flowchart for determining a usage level of a refrigerating compartment volume in a refrigeration controlling method of a refrigerating compartment of a refrigerator according to an embodiment of the present invention;

FIG. 7 is a flowchart of a method for controlling cooling of a refrigerating compartment of a refrigerator according to an embodiment of the present invention, in which a storage space having a largest volume is determined;

FIG. 8 is a flowchart of another method for controlling cooling of a refrigerating compartment of a refrigerator according to an embodiment of the present invention for determining a storage space having a largest volume to be used; and

FIG. 9 is a flowchart of another method for controlling cooling of a refrigerating compartment of a refrigerator according to an embodiment of the present invention for determining a storage space having a largest used volume;

Detailed Description

Fig. 1 is a schematic view of a refrigerator 10 according to an embodiment of the present invention in a top view direction when a side-by-side door 120 is in a closed state, fig. 2 is a schematic view of a refrigerator 10 according to an embodiment of the present invention in a front view direction when the side-by-side door 120 is in a closed state, fig. 3 is a block diagram of electrical components of the refrigerator 10 according to an embodiment of the present invention, and the refrigerator 10 may generally include: the refrigerator comprises a refrigerator body 100, a refrigerating chamber 130, a split door 120, an overturning vertical beam 110 and a light sensor 112.

The refrigerator 10 of the present embodiment may be a refrigerator 10 having a half-open door 120, which includes a cabinet 100, the cabinet 100 defining a refrigerating chamber 130. The refrigerating compartment 130 may be partitioned into a plurality of storage spaces. As shown in fig. 1, the refrigerating compartment 130 is provided in the longitudinal direction with a first storage space 131, a second storage space 132, and a third storage space 133 in this order. In other embodiments, the refrigerating compartment 130 may be divided according to the number of storage spaces, such as four storage spaces and five storage spaces.

The split door 120 is provided corresponding to the refrigerating chamber 130, and is configured to open or close the refrigerating chamber 130.

The turnover vertical beam 110 is installed on one of the door bodies 120 (it should be understood by those skilled in the art that the turnover vertical beam 110 may be installed on any one of the door bodies), and when both door bodies are in a closed state, the turnover vertical beam 110 is attached to the inner side surfaces of the two door bodies to prevent cold air from leaking to the outside of the ice storage space.

The light sensing device 112 is disposed on the turnover vertical beam 110, and the measuring direction of the light sensing device faces the storage space when the side-by-side door 120 is closed, so as to measure the light intensity at the position. Because the light sensing device 112 is located in the gap space range of the side-by-side door 120, the articles in the refrigerating chamber 130 and the light sensing device 112 keep a certain distance, the articles in the refrigerating chamber 130 do not directly shield the light sensing device 112, and the light sensing device 112 can measure the use volume of the position accurately, so that the accurate food amount in the refrigerator 10 is fed back to a user. Compared with the scheme that the light sensing device 112 is arranged in the refrigerating chamber 130 (for example, on the side wall or the rear wall of the inner container), the light sensing device 112 may be completely or partially shielded by the articles in the refrigerating chamber 130, so that the light sensing device 112 cannot receive light or only receives partial light, and the estimated use volume of the refrigerating chamber 130 is inaccurate, and further, the temperature control in the refrigerator 10 is inaccurate, and the food is deteriorated.

The light sensing device 112 needs the light source 150 for detecting the light intensity at the position, the light source 150 may be disposed at the center of the rear wall of the box 100 and disposed corresponding to the light sensing device 112 on the turnover vertical beam 110, the light source 150 may also be disposed on the turnover vertical beam 110, the light source 150 may be visible light or infrared light, for example, the light source 150 is a surface light source 150, has a large light emitting area, and is not easily blocked by the articles in the refrigerating chamber 130. The light-sensing device 112 may be plural to improve the accuracy of the measurement result (for example, two light-sensing devices 112 may be provided).

The principle of the volume of the light sensor 112 at the position to be measured is as follows: as the used volume of the refrigerating compartment 130 changes, light is partially absorbed and partially reflected when reaching the surface of the articles, and the weaker the light intensity measured by the light sensing device 112, the more light is absorbed in the refrigerating compartment 130, the more articles in the refrigerating compartment 130, and the more volume it uses; if the light intensity measured by light sensing device 112 is higher, it indicates that less light is absorbed in refrigerator compartment 130 and less items are in refrigerator compartment 130, which may result in less usable volume. The light sensing device 112 converts the measured light intensity into a voltage value and outputs the voltage value, for example, the stronger the light intensity measured by the light sensing device 112 is, the higher the voltage value output by the light sensing device 112 is; the weaker the light intensity measured by the light sensing device 112, the lower the voltage value output by the light sensing device 112. After a door closing signal of the refrigerating chamber 130 is detected, the light sensing device 112 is started, the light intensity detected by the light sensing device 112 is obtained, and the use level of the volume of the refrigerating chamber 130 is determined according to the obtained light intensity. The refrigeration system of the refrigerator 10 is controlled accordingly according to the usage level of the volume of the refrigerating chamber 130. It should be noted that, there is a difference in the transmission characteristics of the visible light and the infrared light, and the laws that the visible light intensity and the infrared light intensity change with the change of the used volume are different, so that when the infrared light and the visible light are used, the detection parameters of the light sensing device 112 and the corresponding method for determining the usage level of the used volume of the refrigerating chamber 130 also need to be adjusted accordingly.

The refrigerating chamber 130 is divided into a plurality of storage spaces, the number of the light sensing devices 112 may correspond to the number of the storage spaces, and the light sensing devices 112 are spaced such that each light sensing device 112 corresponds to one storage space to detect the light intensity of the position of the light sensing device 112. For example, as shown in fig. 1, in the case where the refrigerating compartment 130 is divided into three storage spaces, the number of the light sensing devices 112 is three, and the light sensing devices 112 are disposed at intervals on the inverted vertical beam 110 such that each light sensing device 112 corresponds to one storage space to detect the light intensity at the position where the light sensing device 112 is located. It should be noted that each storage space may be correspondingly provided with a plurality of light sensing devices 112 to improve the measurement accuracy of the volume thereof, for example, six light sensing devices 112 are arranged on the turning vertical beam 110 at intervals, and each storage space may be correspondingly provided with two light sensing devices 112.

The refrigerator 10 can use a compression type refrigeration system to provide cooling capacity, and includes a refrigeration cycle system including a compressor 180, a condenser, a throttling device, an evaporator, and the like, and the cooling capacity of the evaporator is supplied to the storage space through a circulating airflow by an air supply fan. Since the refrigeration system itself is well known and readily implemented by those skilled in the art, the refrigeration system itself will not be described in detail hereinafter in order not to obscure or obscure the inventive aspects of the present application. The compressor 180 of the refrigerator 10 of the present embodiment is an inverter compressor, and the rotational speed thereof is continuously adjusted within a certain range, and the output energy can be continuously changed.

The refrigerator 10 may further include a split air supply device 170 configured to distribute a flow of refrigerant air from the compressor 180 to the plurality of storage spaces.

The refrigeration controller 160 is disposed in the refrigerator 10, and includes a memory 161 and a processor 162, where the memory 161 stores a computer program, and the processor 162 is used to execute the computer program in the memory 161, and the computer program is used to implement the refrigeration control method for the refrigerating chamber of the refrigerator in this embodiment.

After detecting the door closing signal of the refrigerating chamber 130, the refrigeration controller 160 starts the light sensing device 112 and obtains the light intensity detected by the light sensing device 112; the usage level of the volume of the refrigerating compartment 130 is determined according to the acquired light intensity, and the operation frequency of the compressor 180 is controlled according to the usage level of the volume of the refrigerating compartment 130 to provide the refrigerating air flow to the refrigerating compartment 130. When the refrigerating compartment 130 is partitioned into a plurality of storage spaces, it is necessary to determine the storage space having the largest volume after determining the usage level of the volume of the refrigerating compartment 130, control the compressor 180 to operate at a frequency higher than a default frequency, and control the branching air supply device 170 to individually supply air to the storage space determined to have the largest volume, wherein the air supply time is a set time. The usage level of the volume of the refrigerating chamber 130, the storage space with the largest usage volume, and the setting time may be calculated and determined according to a specific formula.

The using volume grade of the refrigerating chamber 130 is judged according to the light intensity sensed by the light sensing device 112, the operating frequency and the operating time of the compressor 180 are determined according to the using volume grade of the refrigerating chamber 130 so as to provide corresponding cold air for the refrigerating chamber 130, the refrigerating method is more reasonable, and when the refrigerating space is divided into a plurality of storage spaces, the storage space with the largest using volume is judged through a specific judging method, so that independent air supply for a single storage space is realized accurately, the mutual interference between the storage space without the refrigerating requirement and the storage space with the refrigerating requirement is avoided, the accurate air supply is realized, and the overall energy consumption of the refrigerator 10 is reduced.

The refrigerator 10 of the present embodiment can adjust the amount of air supplied to each storage space, for example, a damper is provided individually, or a branched air supply device 170 for distributing components in a concentrated manner is provided in the air duct. Since the variable frequency cooling and the zone-division air supply techniques are well known to those skilled in the art, they are not described herein.

The present embodiment also provides a refrigeration control method for the refrigerating chamber of the refrigerator according to the embodiment, which can be applied to any of the refrigerators 10 described above and is executed by the refrigeration controller 160 described above.

Fig. 4 is a flowchart of a refrigeration control method of a refrigerating compartment of a refrigerator according to an embodiment of the present invention. The refrigeration control method may generally include:

step S402, after detecting a door closing signal of the refrigerating chamber 130, starting the light sensing device 112 and obtaining the light intensity detected by the light sensing device 112;

step S404, judging the use level of the volume of the refrigerating chamber 130 according to the acquired light intensity;

step S406, the refrigeration system of the refrigerator 10 is controlled accordingly according to the usage level.

According to the refrigeration control method of the refrigerating chamber of the refrigerator, the light intensity of the position where the light sensing device 112 is located is measured to judge the use level of the volume of the refrigerating chamber 130, the running frequency of the compressor 180 is controlled according to the use level of the volume of the refrigerating chamber 130 to adjust the supply amount of cold air in the refrigerating chamber 130, the energy consumption of the refrigerator 10 is effectively reduced, newly-placed normal-temperature articles can be quickly cooled, the influence of the articles with higher temperature on other stored articles is reduced, and the storage effect of the refrigerating chamber 130 of the refrigerator 10 is improved.

Fig. 5 is a flowchart of a refrigeration controlling method of a refrigerating compartment of a refrigerator according to another embodiment of the present invention. The refrigeration control method may generally include:

step S502, after detecting a door closing signal of the refrigerating chamber 130, starting the light sensing device 112 and obtaining the light intensity detected by the light sensing device 112;

step S504, judging the use level of the volume of the refrigerating chamber 130 according to the acquired light intensity;

step S506, judging the storage space with the largest use volume in the plurality of storage spaces;

step S508, controlling the compressor 180 to operate at a frequency higher than a default frequency, and controlling the branch air supply device 170 to independently supply air to the storage space with the largest volume, wherein the air supply time is set;

step S510, controlling the compressor 180 to operate at a frequency of a default frequency, and controlling the branch air supply device 170 to simultaneously supply air to a plurality of storage spaces;

step S512, acquiring the internal temperature of the refrigerating chamber 130, and judging whether the set shutdown point is reached according to the internal temperature; if not, returning to the step S510, if yes, executing the step S514;

and step S514, controlling the compressor 180 to stop.

The usage level of the volume of the refrigerating compartment 130 in step S504 is determined by a formula calculation using the voltage value of the light intensity output acquired by the light sensing device 112. For example: a flow of determining a usage level of the refrigerating compartment 130 in a case where the refrigerating compartment 130 is divided into three storage spaces is shown in fig. 6.

Fig. 6 is a flowchart for determining a usage level of a volume of the refrigerating compartment 130 in a refrigeration control method of the refrigerating compartment of the refrigerator according to an embodiment of the present invention, which may generally include:

step S602, determining whether formula 1 is satisfied according to the voltage value output by the light intensity detected by the light sensing device 112; if yes, the usage grade of the volume of the refrigerating chamber 130 is judged to be less, and if not, the judgment of the formula 2 is carried out.

Step S604, judging whether formula 2 is established; if yes, the usage grade of the volume of the refrigerating chamber 130 is judged to be less, and if not, the judgment of the formula 3 is carried out.

Step S606, judging whether formula 3 is established; if yes, the usage level of the volume of the refrigerating chamber 130 is judged to be more, and if not, the judgment of a formula 4 is carried out.

Step S608, determine whether formula 4 holds; if yes, the use level of the volume of the refrigerating chamber 130 is judged to be more, and if not, the use level of the volume of the refrigerating chamber 130 is judged to be middle.

Wherein the content of the first and second substances,

equation 1 is:

A*S1_VOL^2+B*S3_VOL^2-C*S1_VOL+D*S3_VOL+E*S1_VOL*S3_VOL>9，

equation 2 is:

A*S2_VOL^2+B*S3_VOL^2-C*S2_VOL-D*S3_VOL+E*S2_VOL*S3_VOL>9，

equation 3 is:

A*S1_VOL^2+B*S1_VOL+C*S3_VOL+D*S1_VOL*S3_VOL<7，

equation 4 is:

A*S2_VOL^2+B*S3_VOL^2-C*S2_VOL+D*S3_VOL-E*S2_VOL*S3_VOL<1，

in equations 1 to 4, A, B, C, D, E are pre-stored constants, which are related to the specific specification and structure of the refrigerator 10, the specific constant of each refrigerator 10 can be determined by pre-experimental statistics, and S1_ VOL, S2_ VOL, and S3_ VOL are the voltage values output after the light intensities detected by the light sensors corresponding to the first storage space 131, the second storage space 132, and the third storage space 133, respectively.

In the case where the refrigerating compartment 130 is divided into a plurality of storage spaces, it is necessary to determine the storage space having the largest volume after determining the usage level of the refrigerating compartment 130.

The storage space having the largest volume used in step S506 is determined by a formula judgment after the usage volume level of the refrigerating compartment 130 is determined. For example, in a case where the refrigerating chamber 130 is divided into three storage spaces and it is determined that the refrigerating chamber 130 has a large use level of volume, as shown in fig. 7, a determination method of using the storage space having the largest volume is used.

Fig. 7 is a flowchart of a method for controlling cooling of a refrigerating compartment of a refrigerator according to an embodiment of the present invention, wherein the process of determining the storage space having the largest used volume is used when the used volume of the refrigerating compartment 130 has a plurality of use volume levels, the method comprising:

step S702, judging whether the formula 5 is established according to the acquired voltage value of the light intensity output; if yes, the maximum use volume of the first storage space 131 is determined, and otherwise, the formula 6 determination is performed.

Step S704, judging whether formula 6 is established; if so, the maximum use volume of the second storage space 132 is determined, otherwise, the judgment of the formula 7 is performed.

Step S706, judging whether formula 7 is established; if so, it is determined that the third storage space 133 has the largest usage volume, otherwise, it is determined that the usage volumes of the three storage spaces are substantially even.

Wherein, equation 5 is: s1_ VOL + S2_ VOL < a;

equation 6 is: s1_ VOL-S2_ VOL > b;

equation 7 is: s1_ VOL + S2_ VOL > c and S1_ VOL-S2_ VOL < d;

in equations 5-7, a, b, c, d are all pre-stored constants that are related to the specific specifications and configuration of the refrigerator 10, and the specific constants for each refrigerator 10 can be statistically derived from pre-tests. The S1_ VOL, S2_ VOL, and S3_ VOL are voltage values output after the light intensities detected by the light sensors corresponding to the first storage space 131, the second storage space 132, and the third storage space 133, respectively.

The storage space having the largest volume used in step S506 is determined by a formula judgment after the usage volume level of the refrigerating compartment 130 is determined. For example, in a case where the refrigerating chamber 130 is divided into three storage spaces and the use level of the volume of the refrigerating chamber 130 is determined to be middle, as shown in fig. 8, a determination method of using the storage space having the largest volume is used.

Fig. 8 is a flowchart of another method for determining the storage space with the largest used volume in a refrigeration control method for a refrigerating chamber of a refrigerator according to an embodiment of the present invention, where the flowchart of determining the storage space with the largest used volume is used in a case where a used volume level of a volume of a refrigerating chamber 130 is middle, and the method includes:

step S802, judging whether a formula 8 is established according to the acquired voltage value of the light intensity output; if yes, the maximum use volume of the first storage space 131 is determined, and otherwise, the formula 9 determination is performed.

Step S804, judging whether formula 9 is established; if so, the maximum use volume of the second storage space 132 is determined, otherwise, the formula 10 determination is performed.

Step S806, judging whether the formula 10 is established; if so, it is determined that the third storage space 133 has the largest usage volume, otherwise, it is determined that the usage volumes of the three storage spaces are substantially even.

Wherein, equation 8 is: s1_ VOL < e < a;

equation 9 is: s1_ VOL-S2_ VOL > b;

equation 10 is: s1_ VOL + S2_ VOL > c and S1_ VOL-S2_ VOL < d;

in equations 8-10, a, b, c, d, e are all pre-stored constants that are related to the specific specifications and configuration of the refrigerator 10, and the specific constants for each refrigerator 10 can be statistically derived from prior experiments. The S1_ VOL, S2_ VOL, and S3_ VOL are voltage values output after the light intensities detected by the light sensors corresponding to the first storage space 131, the second storage space 132, and the third storage space 133, respectively.

In step S506, the storage space having the largest usage volume is determined by the formula judgment after the usage volume level of the refrigerating compartment 130 is determined. For example, in a case where the refrigerating compartment 130 is divided into three storage spaces and it is determined that the use level of the volume of the refrigerating compartment 130 is small, as shown in fig. 9, a determination method of using the storage space having the largest volume is used.

Fig. 9 is a flowchart of a process of determining a storage space having a largest used volume in a refrigeration control method for a refrigerating compartment of a refrigerator according to an embodiment of the present invention, where the process of determining the storage space having the largest used volume is used in a case where a used volume level of a volume of a refrigerating compartment 130 is small, and includes:

step S902, judging whether formula 11 is established according to the acquired voltage value of the light intensity output; if so, the maximum use volume of the first storage space 131 is determined, otherwise, the formula 12 is performed.

Step S904, determining whether formula 12 holds; if so, the maximum use volume of the second storage space 132 is determined, otherwise, the formula 13 is performed.

Step S906, judging whether the formula 13 is established or not; if so, it is determined that the third storage space 133 has the largest usage volume, otherwise, it is determined that the usage volumes of the three storage spaces are substantially even.

Wherein, equation 11 is: s1_ VOL < j;

equation 12 is: s1_ VOL-S2_ VOL > k;

equation 13 is: s1_ VOL > m and S1_ VOL-S2_ VOL < d and S3_ VOL < p;

in equations 11-13, j, k, m, d, and p are all constants that are pre-stored, and where d is the same as d in equation 10, which is related to the specific specification and configuration of the refrigerator 10, the specific constants for each refrigerator 10 can be statistically derived through pre-testing. The S1_ VOL, S2_ VOL, and S3_ VOL are voltage values output after the light intensities detected by the light sensors corresponding to the first storage space 131, the second storage space 132, and the third storage space 133, respectively.

In step S508, the set time for controlling the branching air blowing device 170 to individually blow the storage space determined to have the largest volume to be used is calculated by an equation. For example, in the case where the refrigerating chamber 130 is divided into three storage spaces and the storage space having the largest used volume is determined, it is calculated by the following method:

a marking value of refrigerating chamber 130 set according to the use level of refrigerating chamber 130 volume, wherein when the use level of refrigerating chamber 130 volume is more, the marking value is 2; if the usage grade of the volume of the refrigerating chamber 130 is middle, the mark value is 1; if the usage level of the volume of the refrigerating compartment 130 is small, the numerical value is marked as 0;

according to equation 14: calculating T-K (A-M-R S) Δ V to obtain the set time,

in equation 14: t is set time, K, S, Y is a constant preserved in advance, and is obtained through advance experimental statistics; m is an ambient temperature value detected by a temperature sensor outside the refrigerator 10, and R is a temperature value detected by a temperature sensor inside the refrigerating chamber 130 of the refrigerator 10; Δ V is N × V, N is a difference between the present marked value and the last marked value of refrigerating compartment 130, and V is a volume of refrigerating compartment 130.

According to the refrigeration control method for the refrigerating chamber of the refrigerator and the refrigerator 10, the light intensity of the position where the light sensing device 112 is located is measured to be used for judging the use level of the volume of the refrigerating chamber 130, and then the running frequency of the compressor 180 is controlled according to the use level of the volume of the refrigerating chamber 130 to adjust the supply amount of cold air in the refrigerating chamber 130, so that the energy consumption of the refrigerator 10 is effectively reduced, newly-placed normal-temperature articles can be quickly cooled, the influence of the articles with higher temperature on other stored articles is reduced, and the storage effect of the refrigerating chamber 130 of the refrigerator 10 is improved.

Further, according to the refrigeration control method for the refrigerating chamber of the refrigerator and the refrigerator 10 of the embodiment, the light sensing device 112 is arranged on the overturning vertical beam 110 of the refrigerator 10 with the side-by-side combination door 120, and in the state that the side-by-side combination door 120 is closed, the light sensing device 112 is located in the gap space between the side-by-side combination door 120 and cannot be directly shielded by articles in the refrigerating chamber 130, so that the problem that the volume measurement is inaccurate due to the fact that the light sensing device 112 is shielded by food is avoided.

Still further, the method for controlling the refrigeration of the refrigerating chamber of the refrigerator and the refrigerator 10 of the present embodiment provide an accurate algorithm for determining the usage level of the volume by using the light sensing device 112, the algorithm can determine the usage level of the volume of the refrigerating chamber 130 of the refrigerator 10, and correspondingly control the refrigeration system of the refrigerator 10 according to the usage level of the volume of the refrigerating chamber 130.

Further, in the refrigeration control method of the refrigerator refrigerating chamber and the refrigerator 10 of the embodiment, the refrigerating chamber 130 of the refrigerator 10 is divided into a plurality of storage spaces, and the branching air supply device 170 is arranged, the storage space with the largest used volume is judged according to the light intensity obtained by the light sensing device 112, the operation frequency of the compressor 180 is controlled, and the storage space with the largest used volume is accurately supplied with air through the branching air supply device 170.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A refrigeration control method of a refrigerator is provided, wherein the refrigerator is limited with a refrigerating chamber, the refrigerator is also provided with a split door body for opening and closing the refrigerating chamber in a split mode, one door body on one side of the split door body is provided with an overturning vertical beam for sealing a gap in the middle of the split door body, the overturning vertical beam is provided with a light sensing device for detecting the light intensity of the position, and the method comprises the following steps:

after a door closing signal of the refrigerating chamber is detected, starting the light sensing device, and obtaining the light intensity detected by the light sensing device;

judging the use level of the volume of the refrigerating chamber according to the acquired light intensity;

correspondingly controlling a refrigerating system of the refrigerator according to the use level;

the refrigerating chamber is partitioned into a plurality of storage spaces, the number of the light sensing devices corresponds to the number of the storage spaces, the light sensing devices are arranged at intervals so that each light sensing device corresponds to one storage space, the refrigerator is provided with a branched air supply device, the branched air supply device is configured to distribute refrigerating air flow from a compression type refrigerating system to the plurality of storage spaces, and the step of judging the use level of the volume of the refrigerating chamber according to the acquired light intensity comprises the following steps:

performing fusion calculation on the light intensity detected by the plurality of light sensing devices to determine the use level of the volume of the refrigerating chamber;

the storing space is including vertical first storing space, second storing space and the third storing space that sets up in proper order, the light sense device sets up on the roof beam is erected in the upset for three interval, and judges the volumetric use level step of walk-in includes:

the using grade of the refrigerating chamber volume is judged according to the formulas 1 to 4 in turn,

the formula 1 is:

A*S1_VOL^2+B*S3_VOL^2-C*S1_VOL+D*S3_VOL+E*S1_VOL*S3_VOL>9，

if the formula 1 is established, judging that the use level of the volume of the refrigerating chamber is less;

the formula 2 is:

A*S2_VOL^2+B*S3_VOL^2-C*S2_VOL-D*S3_VOL+E*S2_VOL*S3_VOL>9，

if the formula 2 is satisfied, judging that the use level of the volume of the refrigerating chamber is less;

the formula 3 is:

A*S1_VOL^2+B*S1_VOL+C*S3_VOL+D*S1_VOL*S3_VOL<7，

if the formula 3 is established, judging that the use level of the volume of the refrigerating chamber is more;

the formula 4 is:

A*S2_VOL^2+B*S3_VOL^2-C*S2_VOL+D*S3_VOL-E*S2_VOL*S3_VOL<1，

if the formula 4 is satisfied, judging that the use level of the refrigerating chamber volume is more, otherwise, judging that the use level of the refrigerating chamber volume is middle;

in the formulas 1 to 4, A, B, C, D, E are respectively constants stored in advance, and are determined by experimental statistics in advance, and S1_ VOL, S2_ VOL, and S3_ VOL are respectively voltage values output after the light intensities detected by the light sensors corresponding to the first storage space, the second storage space, and the third storage space are detected.

2. The method of claim 1, wherein after determining the usage level of the fresh food compartment volume further comprises:

and judging the light intensity detected by the light sensation devices to judge the storage space with the largest use volume in the storage spaces.

3. The method of claim 2, wherein determining the storage space of the plurality of storage spaces having the largest volume of use comprises:

and controlling a compressor of the compression type refrigerating system to operate at a frequency higher than a default frequency, and controlling the branch air supply device to independently supply air to the storage space with the largest use volume, wherein the air supply time is set.

4. The method according to claim 3, wherein the storage space with the largest volume of use is determined after determining the usage level of the refrigerating compartment volume by:

when the usage level of the refrigerating chamber volume is large, formula 5 is judged: whether S1_ VOL + S2_ VOL < a is satisfied or not is judged, and if the formula 5 is satisfied, the maximum use volume of the first storage space is judged;

if the formula 5 does not hold, judging a formula 6: whether S1_ VOL-S2_ VOL > b is satisfied or not, if the formula 6 is satisfied, the maximum use volume of the second storage space is judged,

if the formula 6 does not hold, judging a formula 7: whether S1_ VOL + S2_ VOL > c and S1_ VOL-S2_ VOL < d are established or not is judged, and if the formula 7 is established, the maximum use volume of the third storage space is judged;

if the formula 7 does not hold, the use volumes of the three storage spaces are judged to be substantially even;

if the usage level of the refrigerating chamber volume is middle, judging formula 8: whether S1_ VOL < e is established or not is judged, and if the formula 8 is established, the maximum use volume of the first storage space is judged;

if the formula 8 does not hold, judging a formula 9: whether S1_ VOL-S2_ VOL > f is satisfied, if the formula 9 is satisfied, the maximum use volume of the second storage space is judged,

if the formula 9 does not hold, judging a formula 10: whether S1_ VOL > g, S1_ VOL-S2_ VOL < h and S3_ VOL < d are satisfied or not is judged that the used volume of the third storage space is the largest if the formula 10 is satisfied,

if the formula 10 does not hold, the use volumes of the three storage spaces are judged to be substantially even;

when the usage level of the refrigerating chamber volume is large, formula 11 is determined: s1_ VOL < j, if the formula 11 is satisfied, the maximum use volume of the first storage space is judged,

if the formula 11 is not satisfied, determining whether the formula 12 is satisfied, S1_ VOL-S2_ VOL > k, if the formula 12 is satisfied, determining that the used volume of the second storage space is the largest,

if the formula 12 is not satisfied, judging whether the formula 13 is satisfied; if the formula 13: whether S1_ VOL > m, S1_ VOL-S2_ VOL < d and S3_ VOL < p are established or not, if the formula 13 is established, the maximum using volume of the third storage space is judged,

if the formula 13 does not hold, the use volumes of the three storage spaces are judged to be substantially even;

in the formulas 5 to 13: a. b, c, d, e, f, g, h, j, k, m and p are all constants which are preserved in advance and are obtained through the statistics of experiments in advance.

5. The method of claim 4, wherein the calculating of the set time for the branched air supply device to individually supply air to the storage space determined to have the largest volume comprises:

the marked numerical value of the refrigerating chamber is set according to the use level of the refrigerating chamber volume, wherein the marked numerical value is 2 when the use level of the refrigerating chamber volume is large; if the use level of the refrigerating chamber volume is middle, the marking value is 1; when the using level of the volume of the refrigerating chamber is less, the marking numerical value is 0;

according to equation 14: calculating the set time by T ═ K ═ M-R ═ S) × Δ V × Y,

in the formula 14: t is the set time, K, S, Y is a constant preserved in advance, and is obtained through the statistics of a previous test; m is an environmental temperature value detected by a temperature sensor outside the refrigerator, and R is a temperature value detected by a temperature sensor in the refrigerating chamber of the refrigerator; and Δ V is N × V, N is a difference between the present marked value and the last marked value of the refrigerating chamber, and V is a volume of the refrigerating chamber.

6. The method of claim 4, wherein,

and if the used volumes of the three storage spaces are judged to be substantially average, controlling the compressor of the compression type refrigerating system to operate at a default frequency.

7. The method of claim 3, comprising, after the branching air supply device individually distributes the refrigerant air flow for the set time to the storage space determined to have the largest volume to be used:

controlling the branch air supply device to simultaneously provide refrigerating air flow to the plurality of storage spaces;

acquiring the internal temperature of the refrigerating chamber, and judging whether a set shutdown point is reached according to the internal temperature;

if not, controlling a compressor of the compression type refrigerating system to operate at the default frequency until the internal temperature reaches the shutdown point;

and if so, controlling a compressor of the compression type refrigerating system to stop supplying cold to the refrigerating chamber.

8. A refrigerator having a refrigerating chamber, and comprising:

the split door body is arranged corresponding to the refrigerating chamber and is configured to open and close the refrigerating chamber in a split mode, and the door body on one side of the split door body is provided with an overturning vertical beam so as to seal a gap in the middle of the split door body after the split door body is closed;

the light sensing device is arranged on the overturning vertical beam and is configured to measure the direction of the light sensing device to face the storage space in the state that the oppositely-opened door body is closed so as to measure the light intensity of the position;

a refrigeration controller, disposed within the refrigerator, comprising a memory and a processor, the memory having a computer program stored therein, and the computer program, when executed by the processor, being for implementing the method of any one of claims 1-7.