Control system and method based on negative ion fresh-keeping refrigerator and storage medium

Abstract

The invention relates to the technical field of refrigerator fresh-keeping control, in particular to a control system and method based on a negative ion fresh-keeping refrigerator and a storage medium, and the system comprises at least one fresh-keeping special area arranged in a refrigeration chamber of the refrigerator, an air duct, a negative ion generation module and a controller; the air channel communicates with the fresh-keeping special area, the negative ion generation module is arranged in the air channel, and the controller is electrically connected with the negative ion generation module. The controller stores multiple groups of negative ion treatment parameter combinations corresponding to different food material categories, the parameter combinations comprise preset negative ion concentration, preset single-time treatment duration and preset intermittent period, and the corresponding parameter combinations are called in response to a food material category selection instruction; and the negative ion generation module is controlled to start and operate, when the negative ion concentration in the fresh-keeping special area reaches the preset negative ion concentration and lasts for a single-time treatment duration, the negative ion generation module is stopped, and the negative ion generation module is started again after a specified period is spaced, so that intermittent negative ion release and fresh-keeping control are achieved in this way, and the fresh-keeping effect is guaranteed.

Description

Technical Field

[0001] This application relates to the field of refrigerator preservation control technology, and in particular to a control system, method and storage medium for a refrigerator based on negative ion preservation. Background Technology

[0002] As the core equipment for food storage in the home, the refrigerator's preservation performance directly affects the storage period and nutritional quality of fruits, vegetables, and other ingredients. To extend shelf life, the key lies in effectively inhibiting the respiratory metabolism of food. Negative ion technology, because it can intervene in the physiological metabolic processes of food, has been applied to the field of refrigerator preservation.

[0003] In existing technologies, refrigerators use negative ion generators to release negative ions into the storage space, utilizing their electrical properties to achieve a certain preservation function. These technologies typically have a pre-set, fixed release program or rely on simple timing controls to manage the operation of the negative ion generator.

[0004] However, such methods have significant limitations: their control logic fails to integrate with the diverse characteristics of different food categories, making it impossible to apply differentiated processing parameter combinations to different ingredients. Specifically, the system lacks the ability to preset negative ion concentrations, single-processing durations, and intervals for different food categories, resulting in a lack of precision and adaptability in preservation processing, making it difficult to achieve targeted and efficient preservation and maximize the retention of nutrients. Summary of the Invention

[0005] This application provides a control system, method, and storage medium for a negative ion preservation refrigerator to solve the technical problem that existing refrigerator negative ion preservation technology lacks precision and adaptability due to the use of fixed or simple timing control logic, which cannot call different processing parameter combinations for different food categories.

[0006] In a first aspect, this application provides a control system for a negative ion-based food preservation refrigerator, comprising: At least one fresh-keeping zone, located in the refrigerator compartment; The air duct connects to the fresh food preservation area; Negative ion generating module, which is installed inside the air duct; The controller is electrically connected to the negative ion generating module; It stores multiple sets of negative ion processing parameter combinations, each set of parameter combinations corresponding to a type of food, and the parameter combinations include preset negative ion concentration, preset single processing time and preset interval period; In response to the user's input command to select a food category, the system calls up the parameter combination corresponding to that food category. Based on the combination of parameters called, the negative ion generating module is started and operated to release negative ions into the preservation area; When the negative ion concentration in the preservation zone reaches the preset negative ion concentration and continues for the preset single treatment duration, the negative ion generating module will stop operating. After the negative ion generating module has stopped running for a preset interval period, the steps to control the negative ion generating module to start running are executed again.

[0007] Preferably, it also includes a negative ion concentration sensor, which is installed in the preservation area; The negative ion concentration sensor is configured to: output based on the negative ion concentration within the preservation zone. Negative ion concentration signal.

[0008] Preferably, the controller is electrically connected to the negative ion concentration sensor; The controller is also configured as follows: Real-time reception of negative ion concentration signals; The negative ion concentration signal is compared with the preset negative ion concentration to obtain the comparison results; Based on the comparison results, the operating status of the negative ion generating module is adjusted so that the negative ion concentration in the preservation zone reaches the preset negative ion concentration.

[0009] Preferably, the controller is further configured to: Once the negative ion concentration in the preservation zone reaches the preset negative ion concentration, the operating status of the negative ion generating module is continuously and dynamically adjusted based on the real-time received negative ion concentration signal, so as to control the negative ion concentration in the preservation zone within the preset fluctuation range.

[0010] Preferably, it further includes: a flow fan, which is located upstream of the negative ion generating module and is electrically connected to the controller; The controller executes a combination of parameters based on calls to control the startup and operation of the negative ion generating module, and is also configured as follows: The control fan starts and runs synchronously to ensure that negative ions are fully diffused and transported to the preservation area.

[0011] Preferably, when the controller stops the negative ion generating module, it is also configured to stop the surrounding fan.

[0012] Preferably, the parameter combination also includes a preset delay time; The control mechanism to stop the bypass fan is specifically configured as follows: After the negative ion generating module stops operating, the flow fan continues to run for a preset delay time, and then the flow fan stops operating again.

[0013] Preferably, the controller is further configured to: When the door to the refrigerated area is opened, the negative ion generator stops operating and the bypass fan shuts down. Once the door to the refrigerated area is closed, the preset processing time for each cycle is reset.

[0014] Secondly, this application provides a control method for a negative ion-based refrigerator, applied to the control system of the negative ion-based refrigerator in the first aspect, comprising: It stores multiple sets of negative ion processing parameter combinations, each set of parameter combinations corresponding to a type of food, and the parameter combinations include preset negative ion concentration, preset single processing time and preset interval period; In response to the user's input command to select a food category, the system calls up the parameter combination corresponding to that food category. Based on the combination of parameters called, the negative ion generating module is started and operated to release negative ions into the preservation area; When the negative ion concentration in the preservation zone reaches the preset negative ion concentration and continues for the preset single treatment duration, the negative ion generating module will stop operating. After the negative ion generating module has stopped running for a preset interval period, the steps to control the negative ion generating module to start running are executed again.

[0015] Thirdly, this application provides a computer-readable storage medium including at least one computer instruction for causing a computer to perform steps of the control method for a negative ion-based refrigerator as described in the second aspect.

[0016] As can be seen from the above technical solutions, this application provides a control system, method, and storage medium for a negative ion-based refrigerator. The system includes: at least one preservation zone within the refrigerator's cold storage compartment; an air duct connected to the preservation zone; a negative ion generating module disposed within the air duct; and a controller electrically connected to the negative ion generating module. The controller stores multiple sets of negative ion processing parameter combinations. Each parameter combination corresponds to a type of food and includes a preset negative ion concentration, a preset single processing time, and a preset interval period. The controller responds to a user-input food type selection command by calling the corresponding parameter combination and controlling the negative ion generating module to start operation. After the negative ion generating module's operation time reaches the preset single processing time, it is controlled to stop operation, and a timer begins from the point of cessation. After the timer reaches the preset interval period, the negative ion generating module is controlled to start operation again, thus forming a cycle. This application, through preset parameter combinations associated with different food types and corresponding control logic, achieves personalized and intermittent precise control of negative ion release, effectively improving the refrigerator's preservation effect and adaptability to different foods. Attached Figure Description

[0017] 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.

[0018] Figure 1 A schematic diagram of the control system structure of a negative ion-based food preservation refrigerator provided in an embodiment of this application; Figure 2 This is a schematic diagram of the control method for a negative ion-based food preservation refrigerator provided in an embodiment of this application.

[0019] Illustration: The components include: 1. Freshness preservation area; 2. Air duct; 3. Negative ion generating module; 4. Controller; 5. Negative ion concentration sensor; and 6. Circulating fan. Detailed Implementation

[0020] 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.

[0021] In the field of refrigerator preservation technology, the control system of a negative ion-based refrigerator is a key device for achieving precise food preservation. It is widely used in everyday home storage and small supermarket food preservation, with specific requirements for the targeted preservation, stability, and retention of nutrients. The control system of a negative ion-based refrigerator typically includes core components such as a dedicated preservation zone, air ducts, a negative ion generating module, and a controller. Among these, the controller's storage of multiple sets of negative ion processing parameters is crucial for ensuring that different foods receive suitable preservation conditions and avoiding poor preservation results.

[0022] From the perspective of technical requirements for food preservation, the controller needs to be able to store multiple sets of negative ion processing parameter combinations during operation. Each parameter combination corresponds to a type of food and includes preset negative ion concentration, preset single processing time, and preset interval period. The purpose is to adapt to the respiratory and metabolic characteristics of different foods through differentiated parameters, ensuring that the negative ions released by the negative ion generating module can specifically inhibit the respiratory metabolism of the food, preventing insufficient or excessive preservation of some foods due to single parameters. The adaptability of the parameter combination directly affects the preservation period and nutrient retention of the food, and also determines the adaptability and practicality of the control system.

[0023] In existing refrigerators with ion preservation functions, the operation of negative ion generators is generally managed using preset fixed release programs or simple timing control. When food is placed in the refrigerator compartment, the negative ion generator operates only according to a fixed concentration and duration, lacking a design to store multiple sets of negative ion processing parameters corresponding to different types of food. It cannot call upon appropriate preset negative ion concentrations, preset single-processing durations, and preset intervals based on the type of food. This control method results in a lack of precision and adaptability in the preservation process, making it difficult to achieve targeted and efficient preservation based on the respiratory and metabolic characteristics of different foods, and also failing to maximize the retention of the food's nutritional components.

[0024] To resolve the above issues, please refer to the appendix. Figure 1 This application provides a control system for a negative ion-based food preservation refrigerator, comprising: At least one dedicated preservation zone 1 is provided in the refrigerator's crisper compartment. The preservation zone 1 is an independent cavity structure within the crisper compartment. The preservation zone 1 is separated from other storage spaces in the crisper compartment by a partition. The preservation zone 1 provides a controllable, independent environment for negative ion treatment. The preservation zone 1 facilitates user access to food. In one example of this application, the preservation zone 1 is a sealed drawer consisting of a food-grade plastic inner liner and a metal outer shell.

[0025] Air duct 2 is connected to the preservation zone 1. Air duct 2 is a channel structure specifically designed for transporting negative ions.

[0026] The negative ion generating module 3 is located inside the air duct 2. The negative ion generating module 3 is the core functional module that generates and releases negative ions. It converts molecules in the air into negative ions that can be used for preservation.

[0027] There are various ways to implement the negative ion generating module 3. For example, the negative ion generating module 3 can be a corona discharge type negative ion generator, a photocatalytic type negative ion generating module, or a generating module based on tourmaline materials. A corona discharge type negative ion generator ionizes air by generating corona discharge through a high-voltage electrode. A photocatalytic type negative ion generating module uses ultraviolet light to irradiate a photocatalytic material to generate negative ions. A generating module based on tourmaline materials utilizes the spontaneous polarization effect of the natural mineral tourmaline to release negative ions. This embodiment does not limit the specific type of the negative ion generating module 3.

[0028] Controller 4 is electrically connected to negative ion generating module 3. Controller 4 is the core control unit of the entire control system. Controller 4 can send start and stop control commands to negative ion generating module 3 to realize automated management and control of the operating status of negative ion generating module 3.

[0029] Controller 4 is configured as follows: It stores multiple sets of negative ion processing parameter combinations, each set of parameter combinations corresponding to a type of food, and the parameter combinations include preset negative ion concentration, preset single processing time and preset interval period; In response to the user's input command to select a food category, the system calls up the parameter combination corresponding to that food category. Based on the combination of parameters called, the negative ion generating module 3 is started and running to release negative ions into the preservation zone 1; When the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration and continues for the preset single treatment duration, the negative ion generating module 3 is controlled to stop operating. After the negative ion generating module 3 has stopped running for a preset interval period, the steps to control the negative ion generating module 3 to start running are executed again.

[0030] The controller 4 stores multiple sets of negative ion processing parameter combinations. Each set corresponds to a specific food category and includes a preset negative ion concentration, a preset single processing time, and a preset interval. The specific values ​​in each parameter combination vary depending on the food category. The controller 4 controls the negative ion generating module 3 to operate on and off according to the preset parameters. For example, in the parameter combination corresponding to leafy vegetables, the preset negative ion concentration is set to 1×10⁻⁶. 4 ions / cm 3 Up to 1×10 5 ions / cm 3 The preset single treatment time is set to 10 to 15 minutes, and the preset interval is set to 4 to 6 hours; for fruit and vegetable ingredients, the preset negative ion concentration is set to 5 × 10⁻⁶. 5 ions / cm 3 Up to 5×10 6 ions / cm 3 The preset single processing time is set to 20 to 30 minutes, and the preset interval is set to 8 to 12 hours; for root and tuber ingredients, the preset negative ion concentration is set to 5 × 10⁻⁶. 6 ions / cm 3 Up to 5×10 7 ions / cm 3 The preset single processing time is set to 90 to 120 minutes, and the preset interval period is set to 5 to 7 days.

[0031] Specifically, controller 4 receives the food category selection command input by the user through the refrigerator operation interface, and calls up the negative ion treatment parameter combination corresponding to the food category. The food category selection command input by the user refers to the user's specified information on the type of food currently placed in the preservation zone 1, such as leafy vegetables, fruit vegetables, or root vegetables.

[0032] Based on the parameter combination called, the controller 4 sends a start-up command to the negative ion generating module 3. After receiving the start-up command from the controller 4, the negative ion generating module 3 enters the running state and begins to generate negative ions. The negative ions generated by the negative ion generating module 3 continuously enter the interior of the preservation zone 1 through the air duct 2.

[0033] The negative ions generated by the negative ion generating module 3 continuously enter the preservation zone 1 through the air duct 2, causing the negative ion concentration inside the preservation zone 1 to gradually increase. When the negative ion concentration inside the preservation zone 1 reaches the preset negative ion concentration in the parameter combination retrieved by the controller 4, the controller 4 starts timing the concentration state. When the duration of the concentration state reaches the preset single processing time in the parameter combination, the controller 4 sends a stop operation command to the negative ion generating module 3. After receiving the stop operation command, the negative ion generating module 3 stops generating negative ions.

[0034] After receiving the stop command from the controller 4, the negative ion generating module 3 stops working. At this time, the controller 4 will start timing the stop duration of the negative ion generating module 3. When the timing duration reaches the preset interval period in the parameter combination retrieved by the controller 4, the controller 4 will send the start command to the negative ion generating module 3 again. After receiving the command, the negative ion generating module 3 will repeat the above start operation action and release negative ions into the preservation zone 1 again, thereby realizing the cyclic preservation treatment of the food inside the preservation zone 1.

[0035] In actual use, users only need to input the corresponding selection command through the refrigerator control panel according to the type of food placed in the freshness zone 1. The controller 4 will automatically complete all subsequent control operations without requiring users to manually adjust other parameters, making operation convenient. The freshness zone 1 provides an independent preservation space for food, ensuring that negative ions can concentrate on the food, improving the utilization rate of negative ions, and avoiding the negative ions from affecting other food in the refrigerator compartment. The negative ion generating module 3 starts and stops in an orderly manner under the control of the controller 4, realizing the automated control of negative ion release, concentration maintenance, and intermittent stopping. This ensures both antibacterial and preservation effects and reduces energy consumption. The preset intermittent cycle setting can realize phased cyclic preservation according to the preservation needs of food, extending the shelf life of food and better preserving its nutritional components and taste.

[0036] In some embodiments, see Appendix Figure 1The control system of the negative ion preservation refrigerator also includes a negative ion concentration sensor 5, which is installed in the preservation zone 1. The negative ion concentration sensor 5 can be implemented in various ways. For example, it can be a capacitive negative ion sensor or a Geiger-Müller negative ion sensor. This embodiment does not limit the specific type of the negative ion concentration sensor 5.

[0037] The negative ion concentration sensor 5 is configured to output a negative ion concentration signal based on the negative ion concentration in the preservation zone 1.

[0038] Specifically, the negative ion concentration sensor 5 detects the negative ion concentration in the preservation zone 1 and outputs a negative ion concentration signal based on the detected negative ion concentration.

[0039] In some embodiments, see Appendix Figure 1 The controller 4 is electrically connected to the negative ion concentration sensor 5; Controller 4 is also configured as follows: It receives negative ion concentration signals in real time; it compares the negative ion concentration signals with preset negative ion concentrations to obtain comparison results; Based on the comparison results, the operating status of the negative ion generating module 3 is adjusted so that the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration.

[0040] Specifically, the controller 4 receives the negative ion concentration signal output by the negative ion concentration sensor 5 in real time and compares the real-time negative ion concentration value obtained from the negative ion concentration sensor 5 with the preset negative ion concentration value. When the comparison result shows that the actual negative ion concentration is lower than the preset negative ion concentration, the controller 4 sends a control command to the negative ion generating module 3 to increase the output power. After receiving the command, the negative ion generating module 3 increases its own operating power and accelerates the generation rate of negative ions, thereby increasing the amount of negative ions generated by the negative ion generating module 3. More negative ions enter the interior of the preservation zone 1 through the air duct 2, thereby gradually increasing the actual negative ion concentration in the preservation zone 1 and approaching the preset negative ion concentration.

[0041] When the comparison result shows that the actual negative ion concentration reaches or exceeds the preset negative ion concentration, the controller 4 sends a control command to the negative ion generating module 3 to maintain the corresponding operating power, and controls the negative ion generating module 3 to adjust the operating power so that the negative ion generation rate and the natural diffusion rate of negative ions in the preservation zone 1 are kept in balance, ensuring that the actual negative ion concentration in the preservation zone 1 is stably maintained at the preset negative ion concentration, and ensuring that the negative ion concentration in the preservation zone 1 always meets the preset standard and adapts to the preservation needs of the current food category.

[0042] In some embodiments, see Appendix Figure 1 Controller 4 is also configured as follows: Once the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration, the operating status of the negative ion generating module 3 is continuously and dynamically adjusted based on the real-time received negative ion concentration signal, so as to control the negative ion concentration in the preservation zone 1 within the preset fluctuation range.

[0043] Specifically, when the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration, the negative ion concentration sensor 5 continuously detects the negative ion concentration in the preservation zone 1 and outputs a negative ion concentration signal. The controller 4 continuously receives and processes the negative ion concentration signal to obtain the actual negative ion concentration in the current preservation zone 1, and compares the actual negative ion concentration with the preset fluctuation range in real time to ensure that the concentration fluctuation does not exceed ±5% of the preset value.

[0044] Based on the comparison results, the controller 4 continuously and dynamically adjusts the operating power of the negative ion generating module 3 and changes the rate at which the negative ion generating module 3 generates negative ions: if the actual negative ion concentration exceeds the upper limit of the preset fluctuation range, the controller 4 reduces the output power of the negative ion generating module 3; if the actual negative ion concentration is lower than the lower limit of the preset fluctuation range, the controller 4 increases the output power of the negative ion generating module 3 to ensure that the actual negative ion concentration is maintained within the preset fluctuation range.

[0045] To ensure that the negative ions generated by the negative ion generating module 3 can be fully diffused and evenly delivered to the preservation zone 1, in some embodiments, see Appendix Figure 1 It also includes a bypass fan 6, which is installed in the air duct 2 and located upstream of the airflow of the negative ion generating module 3. The bypass fan 6 is electrically connected to the controller 4.

[0046] There are many ways to implement the flow fan 6. For example, the flow fan 6 can be a centrifugal fan or an axial fan. This embodiment does not limit the specific type of the flow fan 6.

[0047] Controller 4 executes a combination of parameters based on a call to control the startup and operation of negative ion generating module 3, and is also configured as follows: The control fan 6 is started and operated synchronously to allow negative ions to diffuse fully and be transported to the preservation zone 1.

[0048] Specifically, after receiving the user's input instruction for selecting the type of food, the controller 4 retrieves the parameter combination corresponding to that type. Then, the controller 4 sends a start-up command to the negative ion generating module 3 and simultaneously to the bypass fan 6. Upon receiving the start-up command, the bypass fan 6 synchronously enters operation and begins generating directional airflow. The directional airflow generated by the bypass fan 6 continuously flows through the negative ion generating module 3, fully encapsulating and diffusing the negative ions generated by the module, ensuring even distribution of negative ions within the airflow. Under the action of the bypass fan 6, the airflow carrying negative ions is continuously and evenly transported along the air duct 2 into the preservation zone 1, ensuring a sufficient concentration of negative ions in all locations within the preservation zone 1. This allows the negative ions to comprehensively affect the food within the preservation zone 1, preventing excessively high or low concentrations in certain areas and improving the uniformity and effectiveness of negative ion antibacterial and preservation methods.

[0049] In some embodiments, see Appendix Figure 1 When controller 4 stops the operation of negative ion generating module 3, it is also configured to stop the operation of the bypass fan 6.

[0050] Specifically, when the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration and continues for the preset single treatment duration, the controller 4 sends a stop operation command to the negative ion generating module 3 and simultaneously sends a stop operation command to the bypass fan 6. Upon receiving the stop operation command, the bypass fan 6 stops operating, ensuring the synergy between negative ion generation and negative ion delivery and avoiding ineffective energy consumption.

[0051] In some embodiments, see Appendix Figure 1 The parameter combination also includes a preset delay time; Controller 4 executes the control to stop the bypass fan 6, specifically configured as follows: After the negative ion generating module 3 stops operating, the flow fan 6 continues to operate for a preset delay time, and then the flow fan 6 stops operating.

[0052] The preset delay time and the corresponding negative ion treatment parameters for each food item are stored together in the controller 4. When the controller 4 retrieves the parameter combination, it simultaneously retrieves the corresponding preset delay time. The preset delay time can be set according to actual usage requirements. This embodiment provides a specific example where the preset delay time is set to 30 to 60 seconds.

[0053] Specifically, when the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration and continues for a preset single treatment duration, the controller 4 first sends a stop command to the negative ion generating module 3, which then stops generating negative ions. At this time, the controller 4 does not immediately stop the bypass fan 6, but controls the bypass fan 6 to continue running for a preset delay time, such as 30 seconds. After the preset delay time ends, the controller 4 sends a stop command to the bypass fan 6, thereby stopping the bypass fan 6. This design ensures that the negative ions remaining in the air duct 2 and the negative ion generating module 3 are fully transported into the preservation zone 1, improving the utilization rate of negative ions and avoiding the residue of negative ions in the system air duct 2.

[0054] In some embodiments, see Appendix Figure 1 Controller 4 is also configured as follows: When the door of the preservation zone 1 is opened, the negative ion generating module 3 and the bypass fan 6 stop operating. When the door of the preservation zone 1 is closed, the preset single processing time is reset.

[0055] Specifically, when the door of the fresh food storage area 1 is opened, the controller 4 sends a stop command to the negative ion generating module 3 and the bypass fan 6, and simultaneously stops timing the current preset single processing time. This controls the negative ion generating module 3 to stop generating negative ions and the bypass fan 6 to stop running, preventing negative ions from leaking out, ensuring the user's experience when retrieving food, and reducing unnecessary energy consumption.

[0056] When the door of the freshness zone 1 is detected to be closed, the controller 4 restarts the timer to preset the single processing time, ensuring that the food in the freshness zone 1 can receive the full preset time of negative ion treatment, maintain the antibacterial and freshness-preserving effect of negative ions, and adapt to the freshness requirements after the door is opened.

[0057] In some embodiments, see Appendix Figure 2 This application also provides a control method for a negative ion-based refrigerator, applied to the control system of the negative ion-based refrigerator provided in the above embodiments, including: S100: Stores multiple sets of negative ion processing parameter combinations. Each set of parameter combinations corresponds to a type of food. The parameter combinations include preset negative ion concentration, preset single processing time, and preset interval period. S200: In response to the user's input instruction to select the food category, call the parameter combination corresponding to the food category; S300, based on the parameter combination called, controls the negative ion generating module 3 to start running, so as to release negative ions into the preservation zone 1; S400: When the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration and continues for the preset single processing time, the negative ion generating module 3 is controlled to stop running. S500: After the negative ion generating module 3 has stopped running for a preset interval period, the step of controlling the negative ion generating module 3 to start running is executed again.

[0058] In some embodiments, this application also provides a computer-readable storage medium including at least one computer instruction for causing a computer to perform the steps of the control method for a negative ion-based refrigerator provided in the above embodiments.

[0059] When computer instructions are loaded and executed by a computer (such as a processor or microcontroller in a refrigerator control module), the computer can perform the steps of the refrigerator's negative ion preservation control method, including but not limited to: storing multiple sets of negative ion processing parameter combinations (each set of parameters corresponds to a type of food and includes a preset negative ion concentration, a preset single processing time, and a preset interval period); receiving food category selection instructions output from the refrigerator's operation interface; calling the corresponding negative ion processing parameter combination based on the food category selection instructions; controlling the negative ion generating module 3 to start running to release negative ions into the preservation zone 1; when the negative ion concentration in the preservation zone 1 reaches the preset negative ion concentration and continues for the preset single processing time, controlling the negative ion generating module 3 to stop running; and controlling the negative ion generating module 3 to start running again after the negative ion generating module 3 has stopped running for the preset interval period.

[0060] By executing the aforementioned computer instructions, the computer can implement the refrigerator's negative ion preservation control method according to preset logic to complete the cyclical preservation operation of food. This process enables different types of food to receive negative ion treatment adapted to their characteristics. Through intermittent cyclical action, it slows down the respiration and metabolism of the food, thereby helping to extend the shelf life of the food and maintain its nutritional components.

[0061] 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 control system for a negative ion-based food preservation refrigerator, characterized in that, include: At least one preservation zone (1) is provided in the refrigerator compartment; Air duct (2), which is connected to the preservation area (1); Negative ion generating module (3), wherein the negative ion generating module (3) is disposed in the air duct (2); Controller (4), which is electrically connected to negative ion generating module (3); Multiple sets of negative ion treatment parameter combinations are stored. Each set of parameter combinations corresponds to a type of food product, and the parameter combination includes a preset negative ion concentration, a preset single treatment duration, and a preset interval period. In response to the user's input instruction to select the food category, the parameter combination corresponding to the food category is invoked; Based on the parameter combination called, the negative ion generating module (3) is controlled to start running in order to release negative ions into the preservation zone (1); When the negative ion concentration in the preservation zone (1) reaches the preset negative ion concentration and continues for the preset single processing time, the negative ion generating module (3) is controlled to stop running. After the negative ion generating module (3) stops running for a period of time that reaches the preset interval, the step of controlling the negative ion generating module (3) to start running is executed again.

2. The control system for the negative ion-based food preservation refrigerator according to claim 1, characterized in that, It also includes a negative ion concentration sensor (5), which is installed in the preservation zone (1); The negative ion concentration sensor (5) is configured to output a negative ion concentration signal based on the negative ion concentration in the preservation zone (1).

3. The control system for the negative ion-based food preservation refrigerator according to claim 2, characterized in that, The controller (4) is electrically connected to the negative ion concentration sensor (5); The controller (4) is also configured to: The negative ion concentration signal is received in real time; The negative ion concentration signal is compared with the preset negative ion concentration to obtain the comparison result; Based on the comparison results, adjust the operating state of the negative ion generating module (3) so that the negative ion concentration in the preservation zone (1) reaches the preset negative ion concentration.

4. The control system for the negative ion-based food preservation refrigerator according to claim 3, characterized in that, The controller (4) is also configured to: Once the negative ion concentration in the preservation zone (1) reaches the preset negative ion concentration, the operating state of the negative ion generating module (3) is continuously and dynamically adjusted according to the real-time received negative ion concentration signal, so as to control the negative ion concentration in the preservation zone (1) within the preset fluctuation range.

5. The control system for the negative ion-based food preservation refrigerator according to claim 1, characterized in that, Also includes: A flow fan (6) is located upstream of the negative ion generating module (3) and is electrically connected to the controller (4). The controller (4) executes the parameter combination based on the call to control the negative ion generating module (3) to start running, and is also configured to: The surrounding fan (6) is controlled to start and run synchronously so that the negative ions can be fully diffused and transported to the preservation zone (1).

6. The control system for the negative ion-based food preservation refrigerator according to claim 5, characterized in that, The controller (4) is configured to stop the operation of the negative ion generating module (3) and also to stop the operation of the bypass fan (6).

7. The control system for the negative ion-based food preservation refrigerator according to claim 6, characterized in that, The parameter combination also includes a preset delay time; The control of stopping the flow fan (6) is specifically configured as follows: After the negative ion generating module (3) stops running, the flow fan (6) continues to run for the preset delay time, and then the flow fan (6) stops running.

8. The control system for the negative ion-based food preservation refrigerator according to claim 7, characterized in that, The controller (4) is also configured to: When the door of the preservation zone (1) is opened, the negative ion generating module (3) is stopped and the bypass fan (6) is turned off. When the door of the preservation zone (1) is closed, the preset single processing time is restarted.

9. A control method for a negative ion-based food preservation refrigerator, applied to the control system of the negative ion-based food preservation refrigerator as described in any one of claims 1-8, characterized in that, include: Multiple sets of negative ion treatment parameter combinations are stored. Each set of parameter combinations corresponds to a type of food product, and the parameter combination includes a preset negative ion concentration, a preset single treatment duration, and a preset interval period. In response to the user's input instruction to select the food category, the parameter combination corresponding to the food category is invoked; Based on the parameter combination called, the negative ion generating module (3) is started to run to release negative ions into the preservation zone (1); When the negative ion concentration in the preservation zone (1) reaches the preset negative ion concentration and continues for the preset single processing time, the negative ion generating module (3) is controlled to stop running. After the negative ion generating module (3) stops running for a period of time that reaches the preset interval, the step of controlling the negative ion generating module (3) to start running is executed again.

10. A computer-readable storage medium, characterized in that, include: At least one computer instruction, the computer instruction being used to cause the computer to perform the steps of the control method for a negative ion-based preservation refrigerator as described in claim 9.

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