Refrigerator air volume adjusting device and control method

Abstract

The application provides a refrigerator air volume adjusting device and a control method. The refrigerator air volume adjusting device comprises a refrigeration chamber, an image recognition module, a weight detection module, a refrigeration device and a controller. The image recognition module is used for recognizing the quantity of food materials in the refrigeration chamber. The weight detection module is used for detecting the weight of the food materials in the refrigeration chamber. The controller is used for obtaining the quantity of the food materials and the weight of the food materials, calculating the ratio of the weight of the food materials to the quantity of the food materials to obtain the average weight of the food materials, obtaining the weight interval in which the average weight of the food materials is located according to the average weight of the food materials, associating one refrigeration gear with each weight interval, and controlling the refrigeration gear of the refrigeration device according to the weight interval. The quantity of the food materials is recognized by the image recognition module, the weight of the food materials is detected by the weight detection module, and the refrigeration device is controlled to adjust the corresponding refrigeration gear according to the ratio of the quantity of the food materials to the weight of the food materials, so as to solve the problem that the refrigerator cannot automatically adjust the temperature according to the quantity of the food materials.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to a refrigerator airflow regulating device and control method. Background Technology

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature, extending the shelf life of food. Hot air flows through the evaporator, lowering its temperature, while cold air is blown into the refrigerator. The refrigerator lowers its temperature through gas circulation. The refrigerator compartment is primarily used for storing fresh fruits and vegetables, serving a preservation function. Controlling the temperature in the refrigerator compartment can meet the needs of most fresh foods. When too much food is stored in the refrigerator compartment, it can stick tightly to the inner walls, blocking the air vents. Blocked vents hinder cold air flow, causing uneven cooling of food. If food is close to the back panel of the refrigerator's air ducts, it can freeze, leading to mold, spoilage, and contamination of the refrigerator compartment's air.

[0003] To address the issue of inconvenient temperature control in the refrigerator compartment, a display screen can be installed to adjust the opening and closing of the air damper or the refrigerator compartment temperature, thereby controlling the fan speed. Once the refrigerator compartment temperature is set, the fan speed remains constant. However, when the amount of food in the refrigerator compartment increases, the temperature cannot be automatically adjusted. Summary of the Invention

[0004] This application provides a refrigerator airflow regulating device and control method to solve the problem that refrigerators cannot automatically adjust the temperature according to the amount of food.

[0005] In a first aspect, this application provides a refrigerator airflow regulating device, including: a refrigerator compartment, an image recognition module, a weight detection module, a refrigeration unit, and a controller.

[0006] The image recognition module and the weight detection module are located in the refrigerator compartment. The refrigeration device is connected to the refrigerator compartment. The image recognition module is connected to the controller. The weight detection module is connected to the controller. The controller is connected to the refrigeration device.

[0007] The image recognition module is used to identify the quantity of food in the refrigerator compartment.

[0008] The weight detection module is used to detect the weight of the food in the refrigerator compartment.

[0009] The controller is used for:

[0010] Obtain the quantity and weight of the ingredients.

[0011] Calculate the ratio of the weight of the ingredients to the quantity of the ingredients to obtain the average weight of the ingredients.

[0012] The weight range of the average weight of the ingredients is obtained based on the average weight of the ingredients, and each weight range is associated with a cooling level.

[0013] The cooling setting of the refrigeration device is adjusted according to the weight range.

[0014] Optionally, a display screen is also included, which is connected to the controller and is used to display the quantity and weight of the ingredients.

[0015] Optionally, the module also includes a shelf, and the weight detection module further includes an anti-interference tray and a weight sensor, wherein the weight sensor and the anti-interference tray are mounted on the shelf.

[0016] Optionally, the refrigeration device includes an evaporator, a compressor, a condenser, a capillary tube, and a fan; the compressor, the condenser, the capillary tube, the evaporator, and the fan are connected in sequence via pipelines.

[0017] Optionally, the controller further includes a memory for storing the quantity and weight of the ingredients.

[0018] Optionally, the controller is also used for:

[0019] Historical information about ingredients is obtained from the memory, including historical weight and historical quantity.

[0020] Calculate the difference in ingredient weight and the difference in ingredient quantity based on the historical information of the ingredients, the weight of the ingredients, and the quantity of the ingredients;

[0021] Calculate the ratio of the difference in the weight of the ingredients to the difference in the quantity of the ingredients to obtain the average weight change;

[0022] The weight range in which the average weight change falls is obtained based on the average weight change.

[0023] Optionally, the controller is also used for:

[0024] If the average weight change is greater than the first threshold, the refrigeration device is controlled to be adjusted to the first refrigeration setting.

[0025] If the average weight change is greater than the second threshold and less than the first threshold, then the refrigeration device is controlled to be adjusted to the second refrigeration setting.

[0026] If the average weight change is greater than the third threshold and less than the second threshold, then the refrigeration device is controlled to be adjusted to the third refrigeration setting.

[0027] If the average weight change is greater than the fourth threshold and less than the third threshold, then the refrigeration device is controlled to be adjusted to the fourth refrigeration setting.

[0028] If the average weight change is less than the fourth threshold, the refrigeration device is adjusted to the fifth refrigeration setting.

[0029] Optionally, the fan speed of the first cooling setting, the second cooling setting, the third cooling setting, the fourth cooling setting, and the fifth cooling setting decreases sequentially.

[0030] In a second aspect, this application provides a method for regulating the airflow of a refrigerator fan speed, the method comprising:

[0031] Obtain the quantity and weight of the ingredients;

[0032] Calculate the ratio of the weight of the ingredients to the quantity of the ingredients to obtain the average weight of the ingredients;

[0033] Based on the average weight of the ingredients, the weight range in which the average weight of the ingredients falls is obtained, and each weight range is associated with a cooling level.

[0034] Adjust the cooling setting of the refrigeration device according to the weight range specified.

[0035] Optionally, the method further includes:

[0036] Retrieve historical information about ingredients from memory, including historical weight and historical quantity;

[0037] Calculate the difference in ingredient weight and the difference in ingredient quantity based on the historical information of the ingredients, the weight of the ingredients, and the quantity of the ingredients;

[0038] Calculate the ratio of the difference in the weight of the ingredients to the difference in the quantity of the ingredients to obtain the average weight change;

[0039] The weight range in which the average weight change occurs is obtained based on the average weight change.

[0040] If the average weight change is greater than the first threshold, the refrigeration device is controlled to be adjusted to the first refrigeration setting.

[0041] If the average weight change is greater than the second threshold and less than the first threshold, then the refrigeration device is controlled to be adjusted to the second refrigeration setting.

[0042] If the average weight change is greater than the third threshold and less than the second threshold, then the refrigeration device is controlled to be adjusted to the third refrigeration setting.

[0043] If the average weight change is greater than the fourth threshold and less than the third threshold, then the refrigeration device is controlled to be adjusted to the fourth refrigeration setting.

[0044] If the average weight change is less than the fourth threshold, the refrigeration device is adjusted to the fifth refrigeration setting.

[0045] As can be seen from the above technical solutions, this application provides a refrigerator airflow adjustment device and control method. The refrigerator airflow adjustment device includes: a refrigerator compartment, an image recognition module, a weight detection module, a refrigeration device, and a controller. The image recognition module and the weight detection module are disposed in the refrigerator compartment. The refrigeration device is connected to the refrigerator compartment. The image recognition module is connected to the controller, the weight detection module is connected to the controller, and the controller is connected to the refrigeration device. The image recognition module is used to: identify the quantity of food in the refrigerator compartment; the weight detection module is used to: detect the weight of the food in the refrigerator compartment; the controller is used to: obtain the quantity and weight of the food; calculate the ratio of the food weight to the quantity of food to obtain the average weight of the food; obtain the weight range where the average weight of the food is located based on the average weight of the food, and associate each weight range with a refrigeration level; control and adjust the refrigeration level of the refrigeration device according to the weight range; by identifying the quantity of food through the image recognition module and detecting the weight of food through the weight detection module, and controlling the refrigeration device to adjust the corresponding refrigeration level according to the ratio of the quantity and weight of food, the problem of the refrigerator not being able to automatically adjust the temperature according to the quantity of food is solved. Attached Figure Description

[0046] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of a refrigerator airflow regulating device provided in an embodiment of this application;

[0048] Figure 2 A front view of a refrigerator provided in an embodiment of this application;

[0049] Figure 3 A sectional view of the side of a refrigerator provided in an embodiment of this application;

[0050] Figure 4 This is a schematic diagram of the refrigeration device structure provided in the embodiments of this application;

[0051] Figure 5 This is a schematic diagram of the refrigerator airflow adjustment process provided in an embodiment of this application.

[0052] Figure label:

[0053] Among them, 1-refrigeration compartment; 2-image recognition module; 3-weight detection module; 4-display screen; 5-shelf; 6-compressor; 7-condenser; 8-capillary tube; 9-evaporator; 10-fan. Detailed Implementation

[0054] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims.

[0055] The refrigerator's cooling compartment temperature can be controlled by adjusting the air vent opening and closing or the cooling compartment temperature through the display screen. Once the cooling compartment temperature is set, if it needs to be changed, the user needs to change the cooling compartment temperature again before the fan speed can be adjusted. When the amount of food in the cooling compartment increases or decreases, the refrigerator cannot intelligently identify the quantity and weight of the food in the cooling compartment and can only cool according to the set temperature, and cannot automatically adjust the temperature.

[0056] To address the issue of refrigerators not automatically adjusting temperature based on the amount of food, see [link / reference]. Figure 1 This application provides a refrigerator airflow regulating device in some embodiments, including: a refrigerator compartment 1, an image recognition module 2, a weight detection module 3, a refrigeration device, and a controller.

[0057] Image recognition module 2 and weight detection module 3 are installed in the cold storage compartment 1. The refrigeration unit is connected to the cold storage compartment 1, image recognition module 2 is connected to the controller, weight detection module 3 is connected to the controller, and the controller is connected to the refrigeration unit.

[0058] Image recognition module 2 is used to: identify the quantity of food in the refrigerator compartment 1; weight detection module 3 is used to: detect the weight of food in the refrigerator compartment 1; controller is used to: acquire the quantity and weight of food; calculate the ratio of food weight to food quantity to obtain the average weight of food; obtain the weight range of the average weight of food based on the average weight of food, and associate each weight range with a cooling level; control and adjust the cooling level of the refrigeration device according to the weight range.

[0059] When food is placed in refrigerator compartment 1, image recognition module 2 identifies the quantity of food, and weight detection module 3 detects the weight of the food. The controller calculates the average weight of the food based on the quantity and weight of the food, then determines the weight range within which the average weight falls, and adjusts the cooling level of the refrigeration unit according to the associated cooling level. By identifying the quantity and weight of the food, the controller can automatically adjust the cooling level of the refrigeration unit, thereby automatically controlling the temperature of refrigerator compartment 1.

[0060] In some embodiments, such as Figure 2 As shown, it also includes a display screen 4, which is connected to the controller. The display screen 4 is used to display the quantity and weight of the ingredients. The image recognition module 2 and the weight detection module 3 send the quantity and weight of the ingredients to the controller, which updates the quantity and weight of the ingredients in real time and sends them to the display screen 4 for display. Users can intuitively understand the quantity and weight of the ingredients in the refrigerator compartment 1 through the display screen 4.

[0061] In some embodiments, such as Figure 3 As shown, the refrigerator compartment 1 is equipped with shelves 5, and the weight detection module 3 includes an anti-interference tray and a weight sensor. The weight sensor and the anti-interference tray are mounted on the shelves 5. The shelves 5 divide the refrigerator compartment 1 into multiple areas, facilitating the categorized storage of food. The weight sensor, mounted on the shelves 5, can detect the weight of the food on the shelves. However, when the food is in close contact with the inner wall of the refrigerator compartment 1, the weight sensor may underreport the weight, resulting in a larger error in the detected weight. By using the anti-interference tray on the shelves 5, when the food is placed inside the tray, it does not contact the inner wall of the refrigerator compartment 1, allowing for more accurate weight detection and reducing errors.

[0062] In some embodiments, such as Figure 4 As shown, the refrigeration unit includes an evaporator 9, a compressor 6, a condenser 7, a capillary tube 8, and a fan 10; the compressor 6, condenser 7, capillary tube 8, evaporator 9, and fan 10 are connected sequentially via pipelines. The refrigerant, in gaseous form, is drawn in by the compressor 6, compressed into high-temperature, high-pressure vapor, and enters the condenser 7 via pipelines. After dissipating heat, the refrigerant is condensed into a high-pressure liquid. After being throttled and depressurized by the capillary tube 8, it enters the evaporator 9 to vaporize. The air in the refrigerator compartment 1 exchanges with the evaporator 9, generating cold air, which is then blown into the refrigerator compartment 1 by the fan 10. The purpose of refrigeration is achieved by blowing cold air into the refrigerator compartment 1 through the fan 10. The speed at which cold air enters the refrigerator compartment 1 can be controlled by controlling the speed of the fan 10, thereby controlling the temperature of the refrigerator compartment 1.

[0063] In some embodiments, the controller further includes a memory for storing the quantity and weight of the ingredients. For example, when ingredients are taken out of or put into the refrigerator compartment 1, the quantity and weight of the ingredients in the refrigerator compartment 1 will change. The memory can record the quantity and weight of the ingredients so that the information on the quantity and weight of the ingredients can be obtained at any time.

[0064] When the quantity or weight of food in the refrigerator compartment 1 changes, the controller can calculate the change in the quantity and weight of the food, and then calculate the average weight change, and determine the cooling level of the refrigeration unit based on the average weight change.

[0065] The specific steps are as follows: Figure 5 As shown, it includes:

[0066] Retrieve historical information about ingredients from memory. This historical information includes historical weight and historical quantity.

[0067] Calculate the difference in ingredient weight and the difference in ingredient quantity based on historical information, ingredient weight, and ingredient quantity.

[0068] Calculate the ratio of the difference in the weight of the ingredients to the difference in the quantity of the ingredients to obtain the average weight change.

[0069] The weight range in which the average weight change falls is determined based on the average weight change.

[0070] If the average weight change is greater than the first threshold, the refrigeration device will be adjusted to the first refrigeration setting.

[0071] If the average weight change is greater than the second threshold but less than the first threshold, the refrigeration device is controlled and adjusted to the second refrigeration setting.

[0072] If the average weight change is greater than the third threshold but less than the second threshold, the refrigeration device will be adjusted to the third refrigeration setting.

[0073] If the average weight change is greater than the fourth threshold but less than the third threshold, then the refrigeration device is adjusted to the fourth refrigeration setting.

[0074] If the average weight change is less than the fourth threshold, the refrigeration device will be adjusted to the fifth refrigeration setting.

[0075] For example, if the weight of the food in refrigerator compartment 1 is 5kg and the quantity of the food is 10 pieces, and then 3 pieces of food weighing 3kg are placed in refrigerator compartment 1, the weight detection module 3 detects a weight of 8kg, and the image recognition module 2 recognizes a quantity of 13 pieces of food. After the controller obtains the weight and quantity of the food, it can calculate the difference in weight and quantity of the food between the two previous and current events by obtaining historical information stored in the memory. That is, the difference in weight is 3 and the difference in quantity is 3. Then, the ratio of the difference in weight to the difference in quantity is calculated to be 1, thus obtaining the average weight change.

[0076] The average weight change is then compared to a set threshold. First, it's determined whether the average weight change exceeds the first threshold. If so, the refrigeration unit is adjusted to the first cooling setting. If the average weight change is not greater than the first threshold, it's determined whether it exceeds the second threshold. If so, the refrigeration unit is adjusted to the second cooling setting, and so on, until the average weight change falls below the fourth threshold, at which point the refrigeration unit is adjusted to the fifth cooling setting. By calculating the average weight change of the food placed in refrigerator compartment 1 and controlling the refrigeration unit to different settings, the refrigerator achieves automatic temperature regulation.

[0077] It is understandable that when there is no food in the refrigerator compartment 1, the weight and quantity of the food are both 0. The weight and quantity of the food put in for the first time are the difference in the change in the weight and the difference in the change in the quantity of the food.

[0078] In some embodiments, the fan speeds of the first, second, third, fourth, and fifth cooling settings decrease sequentially. When the average weight change within the refrigerator compartment 1 is greater, a higher fan speed is needed to provide more cold air and lower the temperature. By setting five cooling settings, the preservation needs of different foods can be met.

[0079] In some embodiments, this application also provides a refrigerator airflow control method, including:

[0080] The process involves: obtaining the quantity and weight of ingredients; calculating the ratio of ingredient weight to quantity to obtain the average ingredient weight; identifying the weight range within which the average ingredient weight falls, and associating each weight range with a specific cooling level; and adjusting the cooling level of the refrigeration unit according to the weight range. The refrigerator airflow control method also includes:

[0081] Retrieve historical information about ingredients from memory, including historical weight and historical quantity;

[0082] Calculate the difference in ingredient weight and the difference in ingredient quantity based on historical information, ingredient weight, and ingredient quantity.

[0083] Calculate the ratio of the difference in the weight of the ingredients to the difference in the quantity of the ingredients to obtain the average weight change;

[0084] The weight range in which the average weight change occurs is determined based on the average weight change.

[0085] If the average weight change is greater than the first threshold, the refrigeration device is controlled and adjusted to the first refrigeration setting.

[0086] If the average weight change is greater than the second threshold and less than the first threshold, then the refrigeration device is controlled and adjusted to the second refrigeration setting.

[0087] If the average weight change is greater than the third threshold but less than the second threshold, then the refrigeration device is controlled and adjusted to the third refrigeration setting.

[0088] If the average weight change is greater than the fourth threshold and less than the third threshold, then the refrigeration device is controlled and adjusted to the fourth refrigeration setting.

[0089] If the average weight change is less than the fourth threshold, the refrigeration device will be adjusted to the fifth refrigeration setting.

[0090] By calculating the changes in the weight and quantity of food placed in the refrigerator compartment 1, the system can automatically control and adjust the cooling level, thereby automatically controlling the temperature of the refrigerator compartment 1.

[0091] As can be seen from the above technical solutions, this application provides a refrigerator airflow adjustment device and control method. The refrigerator airflow adjustment device includes: a refrigerator compartment 1, an image recognition module 2, a weight detection module 3, a refrigeration device, and a controller. The image recognition module 2 and the weight detection module 3 are installed inside the refrigerator compartment 1. The refrigeration device is connected to the refrigerator compartment 1, the image recognition module 2 is connected to the controller, the weight detection module 3 is connected to the controller, and the controller is connected to the refrigeration device. The image recognition module 2 is used to: identify the quantity of food in the refrigerator compartment 1; the weight detection module 3 is used to: detect the weight of the food in the refrigerator compartment 1; the controller is used to: acquire the quantity and weight of the food; calculate the ratio of the food weight to the quantity of food to obtain the average weight of the food; obtain the weight range where the average weight of the food is located based on the average weight of the food, and associate each weight range with a refrigeration level; control and adjust the refrigeration level of the refrigeration device according to the weight range; by identifying the quantity of food through the image recognition module 2 and detecting the weight of food through the weight detection module 3, and controlling the refrigeration device to adjust the corresponding refrigeration level according to the ratio of the quantity and weight of food, the problem of the refrigerator not being able to automatically adjust the temperature according to the quantity of food is solved.

[0092] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A refrigerator airflow regulating device, characterized in that, include: Refrigeration compartment, image recognition module, weight detection module, refrigeration unit and controller; The image recognition module and the weight detection module are installed in the refrigerator compartment. The refrigeration device is connected to the refrigerator compartment. The image recognition module is connected to the controller. The weight detection module is connected to the controller. The controller is connected to the refrigeration device. The image recognition module is used to: identify the quantity of food in the refrigerator compartment; The weight detection module is used to: detect the weight of the food in the refrigerator compartment; The controller is used for: Obtain the quantity and weight of the ingredients; Calculate the ratio of the weight of the ingredients to the quantity of the ingredients to obtain the average weight of the ingredients; Based on the average weight of the ingredients, the weight range in which the average weight of the ingredients falls is obtained, and each weight range is associated with a cooling level. The cooling setting of the refrigeration device is adjusted according to the weight range; The controller also includes a memory for storing the quantity and weight of the ingredients; The controller is also used for: Historical information about ingredients is obtained from the memory, including historical weight and historical quantity. Calculate the difference in ingredient weight and the difference in ingredient quantity based on the historical information of the ingredients, the weight of the ingredients, and the quantity of the ingredients; Calculate the ratio of the difference in the weight of the ingredients to the difference in the quantity of the ingredients to obtain the average weight change; The weight range in which the average weight change occurs is obtained based on the average weight change. It also includes a shelf, and the weight detection module further includes an anti-interference tray and a weight sensor, the weight sensor and the anti-interference tray being mounted on the shelf.

2. The refrigerator airflow regulating device according to claim 1, characterized in that, It also includes a display screen, which is connected to the controller, and is used to display the quantity and weight of the ingredients.

3. The refrigerator airflow regulating device according to claim 1, characterized in that, The refrigeration device includes an evaporator, a compressor, a condenser, a capillary tube, and a fan; the compressor, the condenser, the capillary tube, the evaporator, and the fan are connected in sequence through pipelines.

4. The refrigerator airflow regulating device according to claim 1, characterized in that, The controller is also used for: If the average weight change is greater than the first threshold, the refrigeration device is controlled to be adjusted to the first refrigeration setting. If the average weight change is greater than the second threshold and less than the first threshold, then the refrigeration device is controlled to be adjusted to the second refrigeration setting. If the average weight change is greater than the third threshold and less than the second threshold, then the refrigeration device is controlled to be adjusted to the third refrigeration setting. If the average weight change is greater than the fourth threshold and less than the third threshold, then the refrigeration device is controlled to be adjusted to the fourth refrigeration setting. If the average weight change is less than the fourth threshold, the refrigeration device is adjusted to the fifth refrigeration setting.

5. The refrigerator airflow regulating device according to claim 4, characterized in that, The fan speed decreases sequentially in the first cooling setting, the second cooling setting, the third cooling setting, the fourth cooling setting, and the fifth cooling setting.

6. A method for controlling the airflow of a refrigerator, characterized in that, The method, applied to the refrigerator airflow regulating device according to any one of claims 1-5, comprises: Obtain the quantity and weight of the ingredients; Calculate the ratio of the weight of the ingredients to the quantity of the ingredients to obtain the average weight of the ingredients; Based on the average weight of the ingredients, the weight range in which the average weight of the ingredients falls is obtained, and each weight range is associated with a cooling level. Adjust the cooling setting of the refrigeration device according to the weight range.

7. The refrigerator airflow control method according to claim 6, characterized in that, The method further includes: Retrieve historical information about ingredients from memory, including historical weight and historical quantity; Calculate the difference in ingredient weight and the difference in ingredient quantity based on the historical information of the ingredients, the weight of the ingredients, and the quantity of the ingredients; Calculate the ratio of the difference in the weight of the ingredients to the difference in the quantity of the ingredients to obtain the average weight change; The weight range in which the average weight change occurs is obtained based on the average weight change. If the average weight change is greater than the first threshold, the refrigeration device is controlled to be adjusted to the first refrigeration setting. If the average weight change is greater than the second threshold and less than the first threshold, then the refrigeration device is controlled to be adjusted to the second refrigeration setting. If the average weight change is greater than the third threshold and less than the second threshold, then the refrigeration device is controlled to be adjusted to the third refrigeration setting. If the average weight change is greater than the fourth threshold and less than the third threshold, then the refrigeration device is controlled to be adjusted to the fourth refrigeration setting. If the average weight change is less than the fourth threshold, the refrigeration device is adjusted to the fifth refrigeration setting.

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