Testing methods, controllers and testing devices for refrigeration equipment

Abstract

This application discloses a testing method, controller, and testing device for refrigeration equipment. The method includes: determining a first temperature value of a target compartment of the refrigeration equipment; the first temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target compartment under no-load conditions; determining a second temperature value of the target compartment of the refrigeration equipment; the second temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target compartment under loaded conditions; and determining the temperature stability of the target compartment based on the first temperature value, the second temperature value, and a test evaluation standard corresponding to the current loading condition of the target compartment. By measuring the first temperature value of the target compartment under no-load conditions and the second temperature value under loaded conditions respectively, and determining the temperature stability of the target compartment based on the first temperature value, the second temperature value, and the test evaluation standard corresponding to the current loading condition of the target compartment, the strength of the target compartment's ability to maintain temperature stability under specific loading conditions can be determined.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and in particular to a testing method, controller and testing device for refrigeration equipment. Background Technology

[0002] Current refrigerators can maintain the set temperature when empty, but the average temperature inside the refrigerator compartment will shift as the amount of food placed in it changes. For example, if the set temperature of the refrigerator compartment is 2℃, the actual average temperature will remain at 2℃ after the refrigerator stabilizes when empty. However, when a large amount of food is placed inside, the actual average temperature after stabilization may vary between different models. Some models can reach an actual average temperature of 6℃ after stabilization, showing a significant temperature shift. Currently, there is a lack of testing methods in the industry for the temperature stability capabilities of refrigerators. Summary of the Invention

[0003] This application provides a testing method, controller, and testing device for refrigeration equipment, which can determine the temperature stability capability of refrigeration equipment and facilitate the early improvement of the performance of refrigeration equipment during the product design stage.

[0004] In a first aspect, embodiments of this application provide a testing method for a refrigeration device, comprising:

[0005] Determine a first temperature value for the target compartment of the refrigeration equipment; the first temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target compartment under no-load conditions.

[0006] Determine a second temperature value for the target compartment of the refrigeration equipment; the second temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target compartment under loading conditions.

[0007] The temperature stability of the target compartment is determined based on the test evaluation criteria corresponding to the first temperature value, the second temperature value, and the current loading status of the target compartment; the loading status characterizes the placement position of the items in the target compartment.

[0008] In some embodiments, determining a first temperature value for the target compartment of the refrigeration equipment includes:

[0009] The compressor is controlled to cool the target room under no-load conditions according to the set temperature.

[0010] The first temperature value is determined based on the average temperature value of the preset temperature measurement points.

[0011] In some embodiments, determining a second temperature value for the target compartment of the refrigeration equipment includes:

[0012] The compressor is controlled to cool the target compartment under load according to the set temperature.

[0013] The second temperature value is determined based on the average temperature value of the preset temperature measurement points.

[0014] In some embodiments, the temperature value of the preset temperature measurement point is determined in the following manner:

[0015] After determining that the compressor has cooled the target room for a preset duration, the temperature value of the preset temperature measurement point is obtained; the preset duration represents the minimum time required to cool the target room and bring the real-time temperature value of the target room to a stable state.

[0016] And / or, acquire the real-time temperature value of the preset temperature measurement point according to a preset cycle, determine whether the real-time temperature value is in a stable state, and take one set of real-time temperature values ​​in a stable state as the temperature value of the preset temperature measurement point.

[0017] In some embodiments, the mean temperature value of the preset temperature measurement point is determined by one of the arithmetic mean, weighted mean, and integral mean.

[0018] In some embodiments, determining the temperature stability of the target compartment based on the test evaluation criteria corresponding to the first temperature value, the second temperature value, and the current loading status of the target compartment includes:

[0019] Determine the difference between the first temperature value and the second temperature value;

[0020] The temperature stability of the target compartment is determined based on the difference and the test evaluation criteria corresponding to the current loading status of the target compartment.

[0021] In some embodiments, the test evaluation criteria are divided into multiple stability levels based on the magnitude of the temperature difference; determining the temperature stability of the target chamber specifically involves matching the difference to obtain one of the stability levels of the test evaluation criteria.

[0022] In some embodiments, the testing method further includes:

[0023] Determine the stability level of the target compartment under different loading conditions;

[0024] The overall temperature stability of the target compartment is determined based on one or more of the stability levels.

[0025] Secondly, embodiments of this application provide a controller, including at least one processor and a memory for communicatively connecting to the at least one processor; the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the test method of the first aspect.

[0026] Thirdly, embodiments of this application provide a testing device, including a temperature sensor, a load pack, and a controller. The temperature sensor is arranged at multiple preset temperature measurement points in the target room of the refrigeration equipment. The temperature sensor is electrically connected to the controller. The load pack is placed in the target room according to a preset placement rule.

[0027] In some embodiments, the preset placement location rule includes at least one of the following:

[0028] The distance from the load pack adjacent to the air duct wall of the target compartment to the air duct wall satisfies a first distance range;

[0029] The distance from the load pack adjacent to the left side wall of the target compartment to the left side wall satisfies the second distance range;

[0030] The distance from the load pack adjacent to the right side wall of the target compartment to the right side wall satisfies the third distance range;

[0031] The spacing between two adjacent load cells satisfies the fourth distance range;

[0032] At least one layer of the load pack is placed in the space between adjacent shelves or between a shelf and the upper side wall of the target compartment, and the distance from the top load pack to the bottom of the upper shelf or to the upper side wall satisfies a fifth distance range.

[0033] In some embodiments, the preset temperature measuring point is located in the refrigerated space of the target compartment excluding the drawers, at least one of the following locations:

[0034] In the middle of the top of the refrigerated space;

[0035] In the middle of the bottom of the refrigerated space;

[0036] In the middle of the refrigerated space;

[0037] At least one of the following: the middle part of the space formed by the partition of the shelf, the middle part of the left side, the middle part of the right side, the middle part of the upper side, and the middle part of the lower side.

[0038] The testing method, controller, and testing device for refrigeration equipment in this application have at least the following beneficial effects: Multiple preset temperature measuring points are arranged in the target chamber of the refrigeration equipment to measure the first temperature value of the target chamber under no-load conditions and the second temperature value under loaded conditions, where the loading condition represents the placement position of the items in the target chamber. Then, based on the first temperature value, the second temperature value, and the test evaluation criteria corresponding to the current loading condition of the target chamber, the temperature stability of the target chamber is determined. This allows for the determination of the target chamber's ability to maintain temperature stability under specific loading conditions. Through the above testing method, the current industry's inability to detect refrigeration temperature stability is solved. This allows R&D personnel to evaluate the refrigeration equipment's ability to maintain refrigeration temperature stability during the design phase, thereby effectively guiding product design and preventing poorly performing products from causing losses to users in the market.

[0039] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0040] Figure 1 A flowchart illustrating a control method for a refrigeration device provided in one embodiment of this application;

[0041] Figure 2 yes Figure 1 Flowchart of step S1000;

[0042] Figure 3 yes Figure 1 A flowchart of another embodiment of step S1000;

[0043] Figure 4 yes Figure 1 Flowchart of step S2000;

[0044] Figure 5 yes Figure 1 Flowchart of step S3000;

[0045] Figure 6 yes Figure 5 Flowchart of step S3200;

[0046] Figure 7 This is a schematic diagram of the connection structure of a controller provided in one embodiment of this application;

[0047] Figure 8 A front view of a testing apparatus provided in one embodiment of this application;

[0048] Figure 9A side view of a test apparatus provided in one embodiment of this application;

[0049] Figure 10 This is a top view of a test apparatus provided in one embodiment of this application. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various implementations. Simultaneously, the steps or actions described in the method description can be rearranged or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0051] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0052] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0053] The refrigerator's cooling temperature is a core indicator of the refrigerator compartment's function. Specific foods require specific preservation temperatures. For example, some vegetables need to be preserved at 4°C, and some medicines need to be kept at 8°C to maintain their optimal efficacy. Therefore, maintaining the stability of the cooling temperature affects the preservation of food and the quality of medicines, and plays an important role in the user's preservation experience and even health.

[0054] Current refrigerators maintain the set temperature when empty, but the average temperature shifts as the amount of food placed in the refrigerator compartment changes. For example, if the set temperature is 2°C, the refrigerator will maintain an average temperature of 2°C after stabilizing when empty. However, when a large amount of food is placed in the refrigerator, the actual average temperature may differ between models, with some models reaching an average temperature of 6°C, showing a significant temperature shift. Currently, the ability to maintain a refrigerator's stable temperature is mainly assessed by detecting the amplitude and uniformity of temperature fluctuations within the refrigerator compartment, as well as the refrigerator's recovery ability to withstand disturbances such as door opening and load changes. Existing technologies, which rely on professional instrument testing and everyday usage methods, suffer from inconsistencies in testing procedures and standards, failing to effectively guide product design and impacting the standardization of refrigeration equipment and user experience.

[0055] Based on this, this application provides a testing method, controller, and testing device for refrigeration equipment. Multiple preset temperature measuring points are arranged in the target compartment of the refrigeration equipment to measure a first temperature value under no-load conditions and a second temperature value under loaded conditions. The loading condition represents the placement position of the items within the target compartment. Then, based on the first temperature value, the second temperature value, and the test evaluation criteria corresponding to the current loading condition of the target compartment, the temperature stability of the target compartment is determined. This allows for the determination of the target compartment's ability to maintain temperature stability under specific loading conditions. This testing method solves the current industry problem of being unable to detect refrigeration temperature stability, allowing R&D personnel to evaluate the ability of refrigeration equipment to maintain refrigeration temperature stability during the design phase. This effectively guides product design and prevents poorly performing products from causing losses to users.

[0056] The refrigeration equipment is described below with reference to the accompanying drawings.

[0057] Reference Figure 1 As shown, Figure 1 This is a flowchart illustrating a control method for a refrigeration device according to one embodiment of this application. Figure 1 As shown, the control method for a refrigeration device provided in this application embodiment includes at least the following steps:

[0058] S1000, determine the first temperature value of the target room of the refrigeration equipment; the first temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target room under no-load conditions.

[0059] Understandably, the target compartment of a refrigeration unit refers to the enclosed space that needs to be maintained within a specific range of temperature, humidity, and other parameters during the design and operation of the refrigeration system; it is the core service object of the refrigeration unit. The parameter requirements of the target compartment are determined by its intended use, and the target compartments differ significantly between different types of refrigeration units. Specifically, when the refrigeration unit is a refrigerator, the target compartments include the refrigerator compartment, the freezer compartment, and the variable-temperature compartment. The target temperature of the refrigerator compartment is typically 2℃~8℃, used for preserving fruits, vegetables, beverages, and cooked foods, and inhibiting bacterial growth. The target temperature of the freezer compartment is typically -18℃ and below, with a relative humidity ≤85%, used for long-term storage of meat and frozen foods, preventing damage to the cell structure of the food. The variable-temperature compartment has a wide temperature range that can be adjusted between -20℃ and 10℃ to adapt to the storage needs of different foods, such as soft freezing and 0℃ preservation.

[0060] Understandably, for different target compartments, the temperature is first monitored at multiple preset temperature measurement points under no-load conditions to determine the initial temperature value. At this point, the target compartment is in an unloaded operating state, and the operating characteristics, energy consumption, and usage precautions of the refrigeration equipment are significantly different from those under loaded conditions. When the target compartment is unloaded, the refrigeration equipment cools it, and the temperature inside the target compartment quickly reaches the set value. Because there is no load pack, the load pack no longer interferes with the flow and temperature fields, nor does it affect the transmission path of the cold air. This results in more accurate temperature values ​​at the preset measurement points, and therefore, the fluctuation range of the temperature values ​​at the preset measurement points is much smaller than under loaded conditions.

[0061] It should be noted that the temperature values ​​of multiple preset temperature measurement points can be obtained by temperature sensors located at multiple preset temperature measurement points to obtain the temperature at different locations in the target room in real time, thereby accurately obtaining the first temperature value reflecting the cooling effect of the target room under no-load conditions, ensuring the reference value of the first temperature value.

[0062] Reference Figure 2 As shown, Figure 2 This is a flowchart of step S1000 above. For example... Figure 2 As shown, step S1000 above includes at least the following steps:

[0063] S1100 controls the compressor to cool the target room under no-load conditions according to the set temperature.

[0064] Understandably, the main control board of the refrigeration equipment uses signals from temperature sensors, combined with preset program logic and the set temperature, to precisely control the compressor's start-up, shutdown, and speed adjustment, thereby maintaining the temperature of the target room. This process is a closed-loop automatic control flow. In practical applications, controlling the compressor to cool the target room under no-load conditions according to the set temperature is existing technology and will not be elaborated here.

[0065] S1200 determines the first temperature value based on the average temperature value of the preset temperature measurement points.

[0066] Understandably, in refrigeration equipment such as refrigerators, if multiple preset temperature measurement points are set in the target compartment and the first temperature value is determined by the average method, the purpose is to reduce the impact of local temperature fluctuations in the target compartment, more accurately reflect the true average temperature of the target compartment, and provide a more reliable basis for assessing the ability of the refrigeration equipment to maintain a stable refrigeration temperature.

[0067] Reference Figure 3 As shown, Figure 3 This is a flowchart of another embodiment of step S1000 described above. For example... Figure 3 As shown, the above step S1000 also includes at least the following steps:

[0068] S1300 controls the compressor to cool the target room according to the set temperature.

[0069] It is understandable that, as described in step S1100 above, the compressor is controlled to cool the target compartment according to the set temperature so that the temperature inside the target compartment can quickly reach the set temperature, so as to accurately obtain the ability of the refrigeration equipment to maintain a stable refrigeration temperature.

[0070] It should be noted that after obtaining the temperature value of the preset temperature measurement point, in order to ensure the cooling efficiency and temperature control accuracy of the refrigeration equipment and to make the first temperature value more valuable for reference, the first temperature value can be determined by whether the cooling time of the target room reaches the preset time or whether the real-time temperature value is in a stable state.

[0071] S1400: After determining that the compressor has cooled the target room for a preset duration, the temperature value of the preset temperature measurement point is obtained; the preset duration represents the minimum time required to cool the target room and bring the real-time temperature value of the target room to a stable state.

[0072] Understandably, the preset duration is the minimum time required for the target compartment to cool and for its real-time temperature to reach a stable state. Therefore, once the target compartment has cooled for the preset duration, the average of the current temperature values ​​at the preset temperature measurement points is calculated to obtain the first temperature value. Specifically, the integral average of the current temperature values ​​at the preset temperature measurement points is calculated to obtain the first temperature value. In multi-point temperature control of refrigerators, the integral average is a more accurate temperature quantification method than the arithmetic average or weighted average. Its core is to integrate the continuous temperature change curve over time and then divide by the time interval to obtain the equivalent average temperature within that period. This more accurately reflects the dynamic trend of compartment temperature changes and reduces the interference of instantaneous fluctuations.

[0073] S1500 acquires the real-time temperature value of the preset temperature measurement point according to the preset cycle, determines whether the real-time temperature value is in a stable state, and uses one set of real-time temperature values ​​in a stable state as the temperature value of the preset temperature measurement point.

[0074] It is understandable that a stable temperature state refers to the actual temperature of the target room being within the allowable deviation range of the set temperature, with minimal and continuous fluctuations. This is the core criterion for judging whether the cooling effect of the refrigeration equipment meets the standards and can be put into normal use. In practical applications, whether the real-time temperature value is in a stable state can be determined by the temperature deviation threshold and the fluctuation amplitude threshold. Once the real-time temperature value is in a stable state, one set of real-time temperature values ​​in the stable state is used as the temperature value of the preset temperature measurement point, and the average value of the temperature values ​​of the preset temperature measurement point is calculated to obtain the first temperature value. Similarly, in the embodiments of this application, the first temperature value can be obtained by calculating the integral average value of one set of real-time temperature values.

[0075] S2000, determine the second temperature value of the target compartment of the refrigeration equipment; the second temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target compartment under loading conditions.

[0076] Understandably, for different target compartments, the temperature of multiple preset temperature measurement points is first monitored under loaded conditions to determine the second temperature value. At this time, the refrigeration equipment is operating under load, meaning the target compartment contains a certain amount of food to be stored or a load package, which is the equipment's normal operating mode. Under loaded conditions, the heat capacity inside the target compartment increases, and temperature stability is enhanced. The presence of the load package directly changes the temperature values ​​at the preset temperature measurement points, the compressor's operating pattern, etc., significantly differing from the characteristics of unloaded operation, and can be used to simulate the state of food placement. Similarly, the temperature values ​​at multiple preset temperature measurement points can be obtained in real time from temperature sensors located at these points, providing a precise second temperature value reflecting the refrigeration effect of the target compartment under loaded conditions, ensuring the reliability of the second temperature value.

[0077] Reference Figure 4 As shown, Figure 4 This is a flowchart of step S2000 above. For example... Figure 4 As shown, step S2000 above includes at least the following steps:

[0078] S2100 controls the compressor to cool the target compartment under load according to the set temperature.

[0079] It is understandable that, consistent with step S1100 above, after setting the load pack in the target room, the compressor is precisely controlled to start / stop and adjust its speed, based on the preset program logic and the set temperature, thereby maintaining the temperature of the target room.

[0080] S2200 determines the second temperature value based on the average temperature value of the preset temperature measurement points.

[0081] Understandably, in refrigeration equipment such as refrigerators, if multiple preset temperature measurement points are set in the target compartment, and the second temperature value is determined using the averaging method, the purpose is to reduce the impact of local temperature fluctuations within the target compartment, more accurately reflect the true average temperature of the target compartment, and provide a more reliable basis for assessing the refrigeration equipment's ability to maintain a stable refrigeration temperature. Specifically, the process of obtaining the second temperature value is consistent with steps S1300-S1500 mentioned above, and will not be repeated here. It should be noted that under load, the difference between the temperature values ​​of multiple preset temperature measurement points will increase; for example, the temperature at the air duct may be low, while the temperature at the center of the food may be high. Similarly, using a weighted integral averaging calculation allows the second temperature value to more accurately reflect the true temperature of the target compartment, avoiding situations where the error is large.

[0082] S3000 determines the temperature stability of the target compartment based on the test evaluation criteria corresponding to the first temperature value, the second temperature value, and the current loading status of the target compartment; the loading status characterizes the placement position and quantity of items in the target compartment.

[0083] Understandably, obtaining the first and second temperature values ​​requires considering the test evaluation criteria corresponding to the current loading status of the target compartment to determine its temperature stability. This is because different placement methods of the load packs, and their relationship to the positions of the air outlet and compartment temperature sensors, directly affect the cooling characteristics of the target compartment. Therefore, it is necessary to clearly define the test evaluation criteria corresponding to the loading status in order to uniformly plan the placement location and quantity of items within the target compartment.

[0084] In practical applications, by limiting the placement position and distance of the load pack within the target chamber, and considering the size and power of the refrigeration equipment, the relationship between the test evaluation criteria and the first and second temperature values ​​is determined to facilitate rapid reading of the temperature stability of the target chamber. To simulate possible user scenarios, the load pack covers most user scenarios. For example, based on user habits, food is easily placed near the left and right side walls, but generally about 15mm away from the back. This is because shelves are often spaced about 15mm from the air duct wall of the target chamber to allow for ventilation boundaries and clearances. Also, food stacking generally does not reach the top side wall of the target chamber. During actual measurements, preset temperature measurement points closer to the air duct are more likely to affect temperature results due to their impact on airflow and temperature control sensing, while preset temperature measurement points farther from the air duct do not affect temperature control. Therefore, the placement of the load pack needs to simulate food placement, affecting airflow changes and thus the temperature sensor's sensing in the target chamber, thereby affecting temperature control and better replicating the actual usage scenario.

[0085] Refer to Figure 5. Figure 5 This is a flowchart of step S3000 above. For example... Figure 5 As shown, the above step S3000 includes at least the following steps:

[0086] S3100, determine the difference between the first temperature value and the second temperature value.

[0087] It is understood that, as described in steps S1000 and S2000 above, after obtaining the first temperature value and the second temperature value, in order to scientifically and reasonably evaluate the ability of the refrigeration equipment to maintain a stable refrigeration temperature, this embodiment of the application calculates the difference between the first temperature value and the second temperature value to measure the ability of the refrigeration equipment to maintain a stable refrigeration temperature.

[0088] S3200 determines the temperature stability of the target compartment based on the test evaluation criteria corresponding to the difference and the current loading status of the target compartment.

[0089] Understandably, after obtaining the difference, the temperature stability of the target compartment can be directly read according to the preset test evaluation standards. Specifically, when the difference between the first temperature value and the second temperature value is large, that is, when the refrigeration equipment cools the target compartment according to the set temperature control damper and fan under both no-load and loaded conditions, the difference between the stable temperatures reached is large, indicating that the refrigeration equipment has a poor ability to maintain the temperature stability of the target compartment, that is, the level of the refrigeration equipment in maintaining refrigeration temperature stability is low; when the difference between the first temperature value and the second temperature value is small, that is, when the refrigeration equipment cools the target compartment according to the set temperature control damper and fan under both no-load and loaded conditions, the difference between the stable temperatures reached is small, indicating that the refrigeration equipment has a strong ability to maintain refrigeration temperature stability, that is, the level of the refrigeration equipment in maintaining refrigeration temperature stability is high.

[0090] Refer to Figure 6. Figure 6 This is a flowchart of step S3200 above. For example... Figure 6 As shown, the above step S3000 includes at least the following steps:

[0091] The S3210 test evaluation standard is divided into multiple stability levels based on the magnitude of the temperature difference.

[0092] As can be understood, as described in the steps above, the test evaluation criteria are determined based on the placement location and distance of the load pack within the target room, combined with the size and power of the refrigeration equipment. Specifically, the test evaluation criteria classify the temperature stability of the target room into several different stability levels according to the magnitude of the temperature difference. See Table 1 below for details:

[0093] Table 1: Stability Level Classification Table

[0094]

[0095] It should be noted that, as shown in Table 1, Level 1 represents the best temperature stability level, that is, when the stability level of the refrigeration equipment is Level 1, it means that the stability level of the refrigeration equipment is the best level; Level 4 represents the worst temperature stability level, that is, when the stability level of the refrigeration equipment is Level 4, it means that the stability level of the refrigeration equipment is the worst level.

[0096] S3220 is one of the stability levels of the test evaluation standard obtained by difference matching.

[0097] Understandably, after determining the test evaluation criteria and temperature difference values ​​as shown in Table 1, the stability level of the refrigeration equipment can be directly read from Table 1 by matching the numerical values. For example, when the temperature difference Δt = 0.5℃ ≤ 1℃, the stability level of the refrigeration equipment is Level 1. In this way, the quality of the refrigeration equipment's cooling temperature stability can be detected, allowing for advance planning of the refrigeration equipment based on its stability level, thus reducing losses in later product development.

[0098] like Figure 7 As shown, Figure 7 This is a schematic diagram of a controller 400 provided in one embodiment of this application.

[0099] The controller 400 in this embodiment includes one or more processors 410 and a memory 420. Figure 7 The example uses a processor 410 and a memory 420.

[0100] The processor 410 and the memory 420 can be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0101] Memory 420, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory 420 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory 420 may optionally include memory 420 remotely located relative to processor 410, and these remote memories can be connected to controller 400 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0102] Those skilled in the art will understand that Figure 7 The device structure shown does not constitute a limitation on the controller 400 and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0103] Reference Figure 8-10 , Figure 8 This is a front view of a testing apparatus provided in one embodiment of this application. Figure 9 This illustration shows a side view of a testing apparatus provided in one embodiment of this application. Figure 10 This is a top view of a testing apparatus provided in one embodiment of this application. Figure 8-10As shown, this application embodiment also provides a testing device, including a temperature sensor 500, a load pack 600 and the aforementioned controller 400. The temperature sensor 500 is arranged in the target chamber 700 of the refrigeration equipment at positions corresponding to multiple preset temperature measurement points. The temperature sensor 500 is electrically connected to the controller 400. The load pack 600 is placed in the target chamber 700 according to preset placement rules.

[0104] It is understandable that a temperature sensor 500 is installed in the target chamber 700 to monitor the temperature values ​​at different locations in the target chamber 700 in real time and transmit them to the controller 400 so that the controller 400 can execute the above steps S1000-S3000 to determine the first temperature value and the second temperature value, and quickly and accurately obtain the stability level of the refrigeration equipment.

[0105] Understandably, the load pack 600 conforms to the size specifications of the corresponding standard and is used to simulate the food to be stored. Furthermore, to simulate possible user scenarios, the load pack covers most user scenarios. In actual measurements, preset temperature measurement points closer to the air duct are more likely to affect temperature results due to their influence on airflow and temperature control sensing, while preset temperature measurement points farther from the air duct do not affect temperature control. Therefore, the placement of the load pack needs to simulate food placement, affecting changes in the airflow field and thus the temperature sensor's sensing in the target compartment, thereby affecting temperature control and better reproducing the actual usage scenario. Specifically, the placement of the load pack 600 needs to simulate most user scenarios while meeting the principles of not blocking the air duct, reserving heat exchange space, and adapting to zoned storage. Therefore, the placement location and number of load packs 600 need to be limited to ensure the normal operation of the refrigeration equipment.

[0106] like Figure 8 and 9 As shown, in some embodiments, the preset placement rules include at least one of the following:

[0107] The distance from the load pack 600, which is adjacent to the air duct wall of the target compartment 700, to the air duct wall meets the first distance range;

[0108] The distance from the load pack 600, which is adjacent to the left side wall of the target compartment 700, to the left side wall satisfies the second distance range;

[0109] The distance from the load pack 600, which is adjacent to the right side wall of the target compartment 700, to the right side wall satisfies the third distance range;

[0110] The spacing between two adjacent load cells 600 meets the fourth distance range;

[0111] At least one load pack 600 is placed in the space between adjacent shelves 710 or between a shelf 710 and the upper side wall of the target compartment 700, and the distance from the top load pack 600 to the bottom of the upper shelf 710 or to the upper side wall satisfies the fifth distance range.

[0112] It is understood that in the testing method of this application embodiment, the actual user situation is simulated first, and then the temperature value of the preset temperature measurement point is considered for ease of reading. For example, since the distance between the shelf of the target room and the air duct wall is generally more than 15mm, the distance between the user's food and the air duct wall in actual application will be greater than 15mm; in other preset placement rules, the specific distance range is also based on the probability of covering the actual use scenario. Therefore, in order to ensure the cold air circulation efficiency in the target room 700 and achieve the test target, the distance from the load pack 600 to the air duct wall meets the first distance range, the distance from the load pack 600 to the left side wall meets the second distance range, the distance from the load pack 600 to the right side wall meets the third distance range, the distance between the two load packs 600 meets the fourth distance range, and the distance from the load pack 600 to the bottom of the upper shelf 710 or to the upper side wall meets the fifth distance range. Among them, the first distance range, the second distance range, the third distance range, the fourth distance range and the fifth distance range are all [10mm, 30mm]. Preferably, the aforementioned distance range can be determined to be greater than or equal to 20mm, that is, ensuring that the minimum value of the distance from the load pack 600 to the duct wall, the distance from the load pack 600 to the left side wall, the distance from the load pack 600 to the right side wall, the spacing between two load packs 600, and the distance from the load pack 600 to the bottom of the upper shelf 710 or to the upper side wall is 20mm. By reserving sufficient space at the aforementioned preset placement position, the cold air circulation efficiency within the target chamber 700 can be effectively guaranteed, allowing the first and second temperature values ​​to better reflect the cooling status of the refrigeration equipment.

[0113] like Figure 8-10 As shown, in some embodiments, the preset temperature measuring point is set in the refrigerated space remaining in the target compartment 700 excluding drawer 720, and is located at at least one of the following positions:

[0114] In the middle of the top of the refrigerated compartment;

[0115] In the middle of the bottom of the refrigerated compartment;

[0116] In the middle of the cold storage space;

[0117] At least one of the following: the middle part of the space formed by the partition of the shelf, the middle part of the left side, the middle part of the right side, the middle part of the upper side, and the middle part of the lower side.

[0118] Understandably, to ensure that multiple temperature sensors 500 can accurately read the true temperature inside the target compartment 700, the preset temperature measurement points need to cover the temperature gradient range within the target compartment 700 and avoid extreme interference areas within the target compartment 700. Therefore, preset temperature measurement points and temperature sensors 500 need to be set in the middle of the top of the refrigerated space, the middle of the bottom of the refrigerated space, the middle of the refrigerated space, and the space formed by the shelf partitions to ensure that the data collected by the temperature sensors 500 can reflect the complete temperature distribution and improve the testing accuracy of the testing device.

[0119] The testing device provided in this application embodiment can evaluate the product's ability to maintain stable refrigeration temperature during refrigerator design and market sampling, thereby effectively guiding design and consumer purchasing guidelines, and preventing products with unsatisfactory cooling effects from entering the market and causing losses to users.

[0120] It should be noted that the refrigeration equipment can be the refrigerator in the above embodiments, or it can be a refrigerated display case, a wine cabinet with refrigeration function, a medicine cabinet, etc., providing refrigeration and preservation functions. The testing method provided in this application embodiment can scientifically judge and evaluate the refrigeration temperature stability capability of the above-mentioned refrigeration equipment, allowing R&D personnel to evaluate the ability of the refrigeration equipment to maintain refrigeration temperature stability during the design stage, thereby effectively guiding the design of related products.

[0121] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network nodes. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0122] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0123] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0124] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0125] It should also be understood that the various implementation methods provided in this application can be combined arbitrarily to achieve different technical effects.

[0126] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A test method for refrigeration equipment, characterized in that, include: Determine the first temperature value of the target compartment of the refrigeration equipment; The first temperature value is determined by the temperature values ​​of multiple preset temperature measuring points in the target room when the target room is unloaded; Determine the second temperature value of the target compartment of the refrigeration equipment; The second temperature value is determined by the temperature values ​​of multiple preset temperature measuring points inside the target compartment when the target compartment is loaded; The temperature stability of the target compartment is determined based on the test evaluation criteria corresponding to the first temperature value, the second temperature value, and the current loading status of the target compartment; the loading status characterizes the placement position and quantity of items in the target compartment. The step of determining the temperature stability of the target compartment based on the test evaluation criteria corresponding to the first temperature value, the second temperature value, and the current loading status of the target compartment includes: Determine the difference between the first temperature value and the second temperature value; The temperature stability of the target compartment is determined based on the test evaluation criteria corresponding to the difference and the current loading status of the target compartment. The test evaluation criteria are divided into multiple stability levels based on the magnitude of the temperature difference. Specifically, determining the temperature stability of the target compartment involves matching the difference to obtain one of the stability levels of the test evaluation criteria.

2. The test method according to claim 1, characterized in that, Determining the first temperature value of the target compartment of the refrigeration equipment includes: The compressor is controlled to cool the target room under no-load conditions according to the set temperature. The first temperature value is determined based on the average temperature value of the preset temperature measurement points.

3. The test method according to claim 1, characterized in that, Determining the second temperature value of the target compartment of the refrigeration equipment includes: The compressor is controlled to cool the target compartment under load according to the set temperature. The second temperature value is determined based on the average temperature value of the preset temperature measurement points.

4. The test method according to claim 2 or 3, characterized in that, The temperature value of the preset temperature measurement point is determined in the following way: After determining that the compressor has cooled the target room for a preset duration, the temperature value of the preset temperature measurement point is obtained; the preset duration represents the minimum time required to cool the target room and bring the real-time temperature value of the target room to a stable state. And / or, acquire the real-time temperature value of the preset temperature measurement point according to a preset cycle, determine whether the real-time temperature value is in a stable state, and take one set of real-time temperature values ​​in a stable state as the temperature value of the preset temperature measurement point.

5. The test method according to claim 2 or 3, characterized in that, The mean temperature value of the preset temperature measurement point is determined by one of the arithmetic mean, weighted mean, and integral mean.

6. The test method according to claim 1, characterized in that, The testing method also includes: Determine the stability level of the target compartment under different loading conditions; The overall temperature stability of the target compartment is determined based on one or more of the stability levels.

7. A controller, characterized in that, It includes at least one processor and a memory for communicatively connecting with said at least one processor; The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the test method as described in any one of claims 1 to 6.

8. A testing apparatus, characterized in that, The device includes a temperature sensor, a load pack, and a controller as described in claim 7. The temperature sensor is deployed at multiple preset temperature measurement points in the target room of the refrigeration equipment. The temperature sensor is electrically connected to the controller. The load pack is placed in the target room according to a preset placement rule.

9. The testing apparatus according to claim 8, characterized in that, The preset placement rules include at least one of the following: The distance from the load pack adjacent to the air duct wall of the target compartment to the air duct wall satisfies a first distance range; The distance from the load pack adjacent to the left side wall of the target compartment to the left side wall satisfies the second distance range; The distance from the load pack adjacent to the right side wall of the target compartment to the right side wall satisfies the third distance range; The spacing between two adjacent load cells satisfies the fourth distance range; At least one layer of the load pack is placed in the space between adjacent shelves or between a shelf and the upper side wall of the target compartment, and the distance from the top load pack to the bottom of the upper shelf or to the upper side wall satisfies a fifth distance range.

10. The testing apparatus according to claim 8, characterized in that, The preset temperature measuring point is set in the refrigerated space remaining after removing the drawers in the target compartment, and is located in at least one of the following positions: In the middle of the top of the refrigerated space; In the middle of the bottom of the refrigerated space; In the middle of the refrigerated space; At least one of the following: the middle part of the space formed by the partition of the shelf, the middle part of the left side, the middle part of the right side, the middle part of the upper side, and the middle part of the lower side.

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