Variable-frequency refrigerator control system with fresh-keeping and sterilizing functions

Abstract

The invention provides a frequency conversion refrigerator control system with fresh-keeping and sterilizing functions, the control system is used for a refrigerator with each chamber independently refrigerating, the control system comprises a data acquisition module, and the data acquisition module is configured to monitor the temperature of each chamber in real time to obtain the real-time chamber temperature; the temperature of the food materials stored in each chamber is detected in real time, and the real-time temperature of the food materials is obtained; the sterilization module is configured to obtain opening and closing information of each chamber and perform sterilization treatment on the chambers according to the opening and closing information and the number of the food materials stored in the chambers; and the temperature control module is configured to regulate and control refrigeration of the compartment according to the real-time temperature of the compartment and the real-time temperature of the food materials when sterilization treatment is completed in the compartment and the real-time temperature of the food materials reaches a preset value. By means of the scheme, the problems that in an existing refrigerator control system, sterilization is not accurate, and the temperature control effect on each chamber is poor are solved.

Description

Technical Field

[0001] The invention relates to the technical field of Steckel rolling mills, and in particular to a variable frequency refrigerator control system with freshness-keeping and sterilization functions. Background Art

[0002] In the current cold chain management and household appliances field, refrigerators are key equipment for storing food and maintaining its freshness and flavor, and their technological development has always attracted much attention. Traditional refrigerator designs often focus on providing basic preservation and freezing functions, among which the quick freezing function, as an important feature, is widely used to quickly lower the temperature of food to inhibit bacterial growth and delay the food spoilage process. However, as consumers' requirements for food quality continue to increase, the limitations of existing refrigerators in quick freezing technology have gradually become apparent, especially when processing ingredients such as meat that require quick and efficient freezing.

[0003] Specifically, the quick-freezing function of existing refrigerators is usually controlled by a preset program. Once started, it runs according to a fixed cold output mode until it reaches a predetermined time or temperature threshold and stops automatically. This "one-size-fits-all" refrigeration strategy ignores the differences in the cold demand of different ingredients during the freezing process. For meat, the process of dropping from room temperature to freezing point and continuing to freeze deeply is a stage that is highly dependent on efficient cold input. Because meat contains a lot of water, when the temperature approaches the freezing point, the water will begin to crystallize. This process will release latent heat, thereby hindering the further drop in temperature. Therefore, when the meat passes through the freezing point (i.e., the ice crystal formation zone), additional cold input is required to overcome this thermal resistance and ensure the efficiency and uniformity of the freezing process.

[0004] However, the quick-freezing technology of existing refrigerators often fails to optimize for this specific stage, but instead uses a uniform, relatively constant refrigeration efficiency. This practice not only causes the freezing speed of meat to slow down significantly when it passes through the freezing point area, affecting the overall preservation effect, but also may aggravate the formation and growth of ice crystals in meat cells due to insufficient freezing rate, causing irreversible damage to the cell structure. Large ice crystals will pierce the cell wall and release the juice in the cell, which not only affects the taste and nutritional value of the meat, but may also become a breeding ground for bacteria, further shortening the shelf life of the meat. Summary of the invention

[0005] The present application provides a variable frequency refrigerator control system with a fresh-keeping and sterilization function to solve the problems of inaccurate sterilization and poor temperature control effect on each compartment in the existing refrigerator control system.

[0006] The control system is used for a refrigerator in which each compartment is independently refrigerated, and the control system comprises:

[0007] A data acquisition module, wherein the data acquisition module is configured to monitor the temperature of each compartment in real time to obtain the real-time compartment temperature; and to detect the temperature of the food stored in each compartment in real time to obtain the real-time temperature of the food;

[0008] A sterilization module, wherein the sterilization module is configured to obtain switch information of each compartment and sterilize the compartment according to the switch information and the amount of food stored in the compartment;

[0009] The temperature control module is configured to regulate the refrigeration of the compartment according to the real-time temperature of the compartment and the real-time temperature of the food when the compartment completes the sterilization process and the real-time temperature of the food reaches a preset value.

[0010] Preferably, the data acquisition module includes:

[0011] A compartment temperature acquisition unit, wherein the compartment temperature acquisition unit is configured to monitor the temperature of each compartment in real time and obtain the real-time temperature of the compartment;

[0012] The food temperature acquisition unit is configured to monitor the temperature of the food in each compartment in real time to obtain the real-time temperature of the food.

[0013] Preferably, the sterilization module comprises:

[0014] A switch unit, wherein the switch unit is configured to record the opening and closing information of the compartment to obtain the switch information;

[0015] An ingredient quantity determination unit, the ingredient quantity determination unit being configured to monitor the volume of the ingredients in the compartment in real time, and to generate ingredient quantity change information according to the volume of the ingredients when the compartment is opened and closed;

[0016] a sterilization instruction generating unit, the sterilization instruction generating unit being configured to generate a sterilization instruction according to the switch information and the food quantity change information, the sterilization instruction comprising a first sterilization instruction and a second sterilization instruction, the first sterilization instruction being used to indicate an increase in the food quantity, and the second sterilization instruction being used to indicate a decrease or no change in the food quantity;

[0017] A sterilization unit is configured to sterilize the compartment according to the sterilization instruction.

[0018] Preferably, the sterilization unit is further configured as:

[0019] Performing a sterilization treatment on the compartment for a first time length according to the first sterilization instruction;

[0020] The compartment is sterilized for a second time length according to the second sterilization instruction, and the value of the first time length is greater than the value of the second time length.

[0021] Preferably, the temperature control module comprises:

[0022] A first temperature judgment unit, the temperature judgment unit is configured to judge the relationship between the real-time temperature of the food and the first preset temperature, and generate corresponding feedback information;

[0023] A second temperature judgment unit, wherein the second temperature judgment unit is configured to judge the relationship between the real-time temperature of the food and the real-time temperature of the compartment when the first requirement is met, and generate corresponding relationship information;

[0024] A third temperature judgment unit, the third temperature judgment unit is configured to generate a corresponding temperature control instruction according to the relationship information, the real-time temperature of the food and the target temperature range of the food;

[0025] A refrigeration control unit is configured to refrigerate the compartment with a corresponding power according to the temperature control instruction.

[0026] Preferably, the first temperature judgment unit is further configured as:

[0027] Determining whether the real-time temperature of the food is less than a first preset temperature;

[0028] If not, continue cooling at the original power until the real-time temperature of the food is lower than the first preset temperature;

[0029] If so, first feedback information is generated, where the first feedback information is used to indicate that the sterilization process has been completed.

[0030] Preferably, different ingredients correspond to different first preset temperatures.

[0031] Preferably, the second temperature judgment unit is further configured as:

[0032] When the first feedback information is received, determining whether the real-time temperature of the food is greater than the real-time temperature of the compartment;

[0033] If yes, generating first relationship information, wherein the first relationship information is used to instruct the data acquisition module to reacquire the real-time temperature of the food and the real-time temperature of the compartment until the real-time temperature of the food is less than the real-time temperature of the compartment;

[0034] If not, generating second relationship information;

[0035] The third temperature determination unit is further configured as follows:

[0036] When the second relationship information is received, determining whether the real-time temperature of the food is greater than an upper limit of the food target temperature range;

[0037] If yes, generating a first temperature control instruction;

[0038] If not, determining whether the real-time temperature of the food is less than the lower limit of the food target temperature range;

[0039] If not, a second temperature control instruction is generated;

[0040] If so, a third temperature control instruction is generated.

[0041] Preferably, the refrigeration control unit is further configured as:

[0042] Refrigerate the corresponding compartment at a first power according to the first temperature control instruction;

[0043] Refrigerate the corresponding compartment at a second power according to the second temperature control instruction;

[0044] Refrigerate the corresponding compartment at a third power according to the third temperature control instruction;

[0045] The value of the first power is greater than the value of the second power, and the value of the second power is greater than the value of the third power.

[0046] As can be seen from the above content, the present application provides a variable frequency refrigerator control system with a fresh-keeping and sterilization function, the control system is used for a refrigerator in which each compartment is independently refrigerated, and the control system includes a data acquisition module, the data acquisition module is configured to monitor the temperature of each compartment in real time to obtain the real-time compartment temperature; and detect the temperature of the food stored in each compartment in real time to obtain the real-time temperature of the food; a sterilization module, the sterilization module is configured to obtain the switch information of each compartment, and sterilize the compartment according to the switch information and the number of food stored in the compartment; a temperature control module, the temperature control module is configured to regulate the refrigeration of the compartment according to the real-time temperature of the compartment and the real-time temperature of the food when the compartment completes the sterilization treatment and the real-time temperature of the food reaches a preset value. The present application solves the problems of inaccurate sterilization and poor temperature control effect of each compartment in the existing refrigerator control system through the above scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0048] Figure 1This is a schematic diagram of a variable frequency refrigerator control system with freshness preservation and sterilization functions for this application;

[0049] Figure 2 This is a schematic diagram of a data acquisition module in a variable frequency refrigerator control system with a fresh-keeping and sterilization function in this application;

[0050] Figure 3 This is a schematic diagram of a sterilization module in a variable frequency refrigerator control system with a fresh-keeping and sterilization function in the present application;

[0051] Figure 4 This is a schematic diagram of a temperature control module in a variable frequency refrigerator control system with freshness preservation and sterilization functions according to the present application. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Figure 1 This is a schematic diagram of a variable frequency refrigerator control system with freshness preservation and sterilization functions according to the present application.

[0054] See also Figure 1 It can be seen that this embodiment provides a variable frequency refrigerator control system with freshness preservation and sterilization functions, the control system is used for a refrigerator in which each compartment is independently refrigerated, and the control system includes:

[0055] The data acquisition module 100 is configured to monitor the temperature of each compartment in real time to obtain the real-time compartment temperature; and to detect the temperature of the food stored in each compartment in real time to obtain the real-time temperature of the food. Specifically, in this embodiment, the data acquisition module 100 is used to monitor the situation of each compartment, and thereby obtain the real-time compartment temperature of each independent compartment and the real-time temperature of the food stored in each compartment.

[0056] It should be noted that the real-time temperature of the food is the average temperature of the entire food, not just the temperature on the surface of the food.

[0057] The control system further comprises:

[0058] The sterilization module 200 is configured to obtain the switch information of each compartment and sterilize the compartment according to the switch information and the amount of food stored in the compartment. Specifically, in this embodiment, the sterilization module 200 is used to sterilize all compartments.

[0059] It should be noted that, since the existing refrigerator sterilization technology directly performs the same sterilization after the refrigerator door or compartment is opened and closed, it does not take into account that the sterilization intensity required in different situations is also different. The sterilization treatment of conventional refrigerators uses sterilization lamps for sterilization, and the sterilization lamps will increase the temperature inside the compartment. Therefore, inaccurate sterilization will inevitably lead to reduced sterilization efficiency and reduced refrigeration effect of the compartment. Based on this, this embodiment combines the switch information and the amount of food stored in the compartment to sterilize the compartment, so as to meet the sterilization requirements in different situations.

[0060] The control system further comprises:

[0061] The temperature control module 300 is configured to regulate the refrigeration of the compartment according to the real-time temperature of the compartment and the real-time temperature of the food when the compartment completes the sterilization process and the real-time temperature of the food reaches a preset value. Specifically, in this embodiment, the temperature control module 300 is used to cool each independent compartment.

[0062] Figure 2 This is a schematic diagram of a data acquisition module in a variable frequency refrigerator control system with freshness preservation and sterilization functions according to the present application.

[0063] See also Figure 2 It can be seen that the data acquisition module 100 includes:

[0064] A compartment temperature acquisition unit 110, wherein the compartment temperature acquisition unit 110 is configured to monitor the temperature of each compartment in real time and obtain the real-time temperature of the compartment;

[0065] The food temperature acquisition unit 120 is configured to monitor the temperature of the food in each compartment in real time to obtain the real-time temperature of the food.

[0066] Specifically, in this embodiment, the temperature of each compartment is monitored in real time by the compartment temperature acquisition unit 110, and the real-time temperature of the compartment is obtained; the temperature of the food stored in each compartment is monitored by the food temperature acquisition unit 120, and the real-time temperature of the food is obtained.

[0067] Figure 3 This is a schematic diagram of a sterilization module in a variable frequency refrigerator control system with freshness preservation and sterilization functions according to the present application.

[0068] See also Figure 3 It can be seen that the sterilization module 200 includes:

[0069] The switch unit 210 is configured to record the opening and closing information of the compartment to obtain the switch information;

[0070] The food quantity determination unit 220 is configured to monitor the volume of the food in the compartment in real time, and generate food quantity change information according to the volume of the food when the compartment is opened and closed;

[0071] A sterilization instruction generating unit 240, wherein the sterilization instruction generating unit 240 is configured to generate a sterilization instruction according to the switch information and the food quantity change information, wherein the sterilization instruction includes a first sterilization instruction and a second sterilization instruction, wherein the first sterilization instruction is used to indicate that the food quantity increases, and the second sterilization instruction is used to indicate that the food quantity decreases or remains unchanged;

[0072] The sterilization unit 230 is configured to sterilize the compartment according to the sterilization instruction.

[0073] Specifically, in this embodiment, the information on the opening and closing of the compartment is obtained through the switch unit 210. It should be noted that this embodiment is only for the opening and closing of the compartment, but it does not mean that the opening and closing of the refrigerator door cannot be monitored. If there is a relevant demand, the information on the opening and closing of the refrigerator door can be added to the corresponding technology.

[0074] The food quantity judgment unit 220 is used to judge whether the quantity of food in the compartment changes after the compartment is opened and closed. The sterilization instruction generation unit 240 generates a sterilization instruction according to the switch information and the food quantity change information; since the bacteria content of the newly added food is bound to be higher than the original food or the empty compartment, it is necessary to distinguish the sterilization in different situations, and the sterilization instruction generation unit 240 generates the first sterilization instruction or the second sterilization instruction to achieve this function.

[0075] The sterilization instruction is executed by the sterilization unit 230, thereby completing the closed-loop control of the sterilization process of each independent compartment of the refrigerator.

[0076] The sterilization unit 230 sterilizes the compartment for a first time length according to the first sterilization instruction, and sterilizes the compartment for a second time length according to the second sterilization instruction, and the value of the first time length is greater than the value of the second time length. This embodiment distinguishes sterilization in different situations by limiting the sterilization time length, thereby achieving accurate sterilization of each independent compartment.

[0077] Figure 4 This is a schematic diagram of a temperature control module in a variable frequency refrigerator control system with freshness preservation and sterilization functions according to the present application.

[0078] See also Figure 4It can be seen that the temperature control module 300 includes:

[0079] A first temperature determination unit 310, wherein the temperature determination unit 310 is configured to determine the relationship between the real-time temperature of the food and the first preset temperature, and generate corresponding feedback information;

[0080] A second temperature judgment unit 320, wherein the second temperature judgment unit 320 is configured to judge the relationship between the real-time temperature of the food and the real-time temperature of the compartment when the first requirement is met, and generate corresponding relationship information;

[0081] A third temperature judgment unit 330, wherein the third temperature judgment unit 330 is configured to generate a corresponding temperature control instruction according to the relationship information, the real-time temperature of the food material, and the target temperature range of the food material;

[0082] A refrigeration control unit 340 is configured to refrigerate the compartment with a corresponding power according to the temperature control instruction.

[0083] Specifically, in this embodiment, after the sterilization treatment of the compartment is completed, the most important refrigeration process of the refrigerator needs to be performed. This embodiment implements multi-link judgments by the first temperature judgment unit 310, the second temperature judgment unit 320, and the third temperature judgment unit 330, and executes different refrigeration strategies through the refrigeration control unit 340, thereby achieving more precise control of the refrigeration of each compartment, so that all ingredients stored in each independent compartment can be stored fresh.

[0084] The first temperature determination unit 310 is further configured to:

[0085] Determining whether the real-time temperature of the food is less than a first preset temperature;

[0086] If not, continue cooling at the original power until the real-time temperature of the food is lower than the first preset temperature;

[0087] If so, first feedback information is generated, where the first feedback information is used to indicate that the sterilization process has been completed.

[0088] Specifically, in the present embodiment, the first temperature judgment unit 310 firstly judges whether the real-time temperature of the food has escaped the influence of the temperature increase caused by the sterilization light during the sterilization process, that is, judges whether the real-time temperature of the food is lower than the first preset temperature; and feeds back the first feedback information to the second temperature judgment unit 320 when the real-time temperature of the food is lower than the first preset temperature.

[0089] It should be noted that, since different food sterilization lamps have different effects on their temperatures, the first preset temperatures corresponding to different food ingredients are also different.

[0090] The second temperature determination unit 320 is further configured to:

[0091] When the first feedback information is received, determining whether the real-time temperature of the food is greater than the real-time temperature of the compartment;

[0092] If yes, generating first relationship information, wherein the first relationship information is used to instruct the data acquisition module to reacquire the real-time temperature of the food and the real-time temperature of the compartment until the real-time temperature of the food is less than the real-time temperature of the compartment;

[0093] If not, generating second relationship information;

[0094] The third temperature determination unit 330 is further configured as follows:

[0095] When the second relationship information is received, determining whether the real-time temperature of the food is greater than an upper limit of the food target temperature range;

[0096] If yes, generating a first temperature control instruction;

[0097] If not, determining whether the real-time temperature of the food is less than the lower limit of the food target temperature range;

[0098] If not, a second temperature control instruction is generated;

[0099] If so, a third temperature control instruction is generated.

[0100] Specifically, in this embodiment, the second temperature judgment unit 320 and the third temperature judgment unit 330 are used to further judge the temperature of the compartment and the food; the second temperature judgment unit 320 first judges the relationship between the real-time temperature of the food and the real-time temperature of the compartment; if the real-time temperature of the food is higher than the real-time temperature of the compartment, it means that the temperature in the compartment can still meet the refrigeration requirements of the food within a certain period of time; the third temperature judgment unit 330 judges the relationship between the real-time temperature of the food and the food target temperature range corresponding to the food, so as to maintain the food at the optimal refrigeration temperature during the storage process.

[0101] The refrigeration control unit 340 is further configured to:

[0102] Refrigerate the corresponding compartment at a first power according to the first temperature control instruction;

[0103] Refrigerate the corresponding compartment at a second power according to the second temperature control instruction;

[0104] Refrigerate the corresponding compartment at a third power according to the third temperature control instruction;

[0105] The value of the first power is greater than the value of the second power, and the value of the second power is greater than the value of the third power.

[0106] Specifically, in this embodiment, the refrigeration control unit 340 executes various instructions to achieve different temperature controls for different food materials in each independent compartment.

[0107] This embodiment has the following advantages:

[0108] The sterilization of the compartments under different conditions is realized, which not only saves the energy required for sterilization, but also improves the refrigeration efficiency of each independent compartment.

[0109] The temperature of each independent compartment is controlled in various conditions, making the refrigeration of each compartment more reasonable and efficient.

Claims

1. A variable frequency refrigerator control system with freshness preservation and sterilization functions, characterized in that: The control system is used for a refrigerator in which each compartment is independently refrigerated, and the control system comprises: A data acquisition module (100), the data acquisition module (100) being configured to monitor the temperature of each compartment in real time to obtain the real-time compartment temperature; and to detect the temperature of the food stored in each compartment in real time to obtain the real-time temperature of the food; A sterilization module (200), the sterilization module (200) being configured to obtain switch information of each compartment and sterilize the compartment according to the switch information and the amount of food stored in the compartment; The temperature control module (300) is configured to regulate the refrigeration of the compartment according to the real-time temperature of the compartment and the real-time temperature of the food when the compartment completes the sterilization process and the real-time temperature of the food reaches a preset value.

2. A variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 1, characterized in that: The data acquisition module (100) comprises: A compartment temperature acquisition unit (110), wherein the compartment temperature acquisition unit (110) is configured to monitor the temperature of each compartment in real time to obtain the real-time temperature of the compartment; The food temperature acquisition unit (120) is configured to monitor the temperature of the food in each compartment in real time to obtain the real-time temperature of the food.

3. A variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 1, characterized in that: The sterilization module (200) comprises: A switch unit (210), wherein the switch unit (210) is configured to record information on the opening and closing of the compartment to obtain switch information; An ingredient quantity determination unit (220), the ingredient quantity determination unit (220) being configured to monitor the volume of the ingredients in the compartment in real time, and to generate ingredient quantity change information according to the volume of the ingredients when the compartment is opened and closed; A sterilization instruction generating unit (240), the sterilization instruction generating unit (240) being configured to generate a sterilization instruction according to the switch information and the food quantity change information, the sterilization instruction comprising a first sterilization instruction and a second sterilization instruction, the first sterilization instruction being used to indicate an increase in the food quantity, and the second sterilization instruction being used to indicate a decrease or no change in the food quantity; A sterilization unit (230), wherein the sterilization unit (230) is configured to sterilize the compartment according to the sterilization instruction.

4. A variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 3, characterized in that: The sterilization unit (230) is further configured to: Performing a sterilization treatment on the compartment for a first time length according to the first sterilization instruction; The compartment is sterilized for a second time length according to the second sterilization instruction, and the value of the first time length is greater than the value of the second time length.

5. The variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 1 is characterized in that: The temperature control module (300) comprises: A first temperature judgment unit (310), the temperature judgment unit (310) being configured to judge the relationship between the real-time temperature of the food and the first preset temperature, and to generate corresponding feedback information; A second temperature judgment unit (320), the second temperature judgment unit (320) being configured to judge the relationship between the real-time temperature of the food and the real-time temperature of the compartment when the first requirement is met, and generate corresponding relationship information; A third temperature judgment unit (330), the third temperature judgment unit (330) being configured to generate a corresponding temperature control instruction according to the relationship information, the real-time temperature of the food material and the target temperature range of the food material; A refrigeration control unit (340), wherein the refrigeration control unit (340) is configured to refrigerate the compartment with a corresponding power according to the temperature control instruction.

6. A variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 5, characterized in that: The first temperature determination unit (310) is further configured to: Determining whether the real-time temperature of the food is less than a first preset temperature; If not, continue cooling at the original power until the real-time temperature of the food is lower than the first preset temperature; If so, first feedback information is generated, where the first feedback information is used to indicate that the sterilization process has been completed.

7. A variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 6, characterized in that: Different ingredients correspond to different first preset temperatures.

8. The variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 7, characterized in that: The second temperature determination unit (320) is further configured to: When the first feedback information is received, determining whether the real-time temperature of the food is greater than the real-time temperature of the compartment; If yes, generating first relationship information, wherein the first relationship information is used to instruct the data acquisition module to reacquire the real-time temperature of the food and the real-time temperature of the compartment until the real-time temperature of the food is less than the real-time temperature of the compartment; If not, generating second relationship information; The third temperature determination unit (330) is further configured to: When the second relationship information is received, determining whether the real-time temperature of the food is greater than an upper limit of the food target temperature range; If yes, generating a first temperature control instruction; If not, determining whether the real-time temperature of the food is less than the lower limit of the food target temperature range; If not, a second temperature control instruction is generated; If so, a third temperature control instruction is generated.

9. A variable frequency refrigerator control system with freshness preservation and sterilization function according to claim 8, characterized in that: The refrigeration control unit (340) is further configured to: Refrigerate the corresponding compartment at a first power according to the first temperature control instruction; Refrigerate the corresponding compartment at a second power according to the second temperature control instruction; Refrigerate the corresponding compartment at a third power according to the third temperature control instruction; The value of the first power is greater than the value of the second power, and the value of the second power is greater than the value of the third power.

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