Outdoor communication cabinet, control method thereof and outdoor communication equipment

By adjusting the operating mode of the temperature control module through the controller, the problem of frequent start-stop of the temperature control system in outdoor communication cabinets under light load conditions is solved, thereby reducing condensation and energy consumption and ensuring the stable operation of the communication device.

CN121772173APending Publication Date: 2026-03-31HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The temperature control system of outdoor communication cabinets frequently starts and stops under light load conditions, causing condensation, which affects the corrosion and short circuits of electronic components.

Method used

The temperature control module's operating mode is adjusted by the controller, switching between the first and second operating modes according to changes in the cabinet's internal temperature, thus avoiding frequent start-stop cycles and reducing condensation.

Benefits of technology

This effectively avoids frequent start-stop cycles of the temperature control module, reduces condensation, ensures stable operation of the communication device in a suitable working environment, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an outdoor communication cabinet, a control method of the outdoor communication cabinet and outdoor communication equipment, and a controller in the outdoor communication cabinet is used for controlling a temperature control module to refrigerate for multiple times within a first duration when the temperature control module operates in a first working mode; when the average time length of each refrigeration of the temperature control module in the first time length is smaller than the second time length, the temperature control module is controlled to be switched from the first working module to a second working mode; under the condition of the first working mode, the temperature control module starts refrigeration when the temperature in the cabinet body is larger than or equal to the first temperature, and stops refrigeration when the temperature in the cabinet body is smaller than the second temperature. In the second working mode, the temperature control module starts refrigeration when the temperature in the cabinet body is larger than or equal to a third temperature and stops refrigeration when the temperature in the cabinet body is smaller than a fourth temperature, and the third temperature is larger than the first temperature. The temperature control module can be prevented from being continuously and frequently started and stopped, so that condensation generated inside is reduced, and the applicability is high.
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Description

Technical Field

[0001] This application relates to the field of power electronics technology, specifically to an outdoor communication cabinet and its control method, and outdoor communication equipment. Background Technology

[0002] Outdoor communication cabinets provide a suitable working environment for internal communication devices, featuring dustproof, waterproof, and anti-theft functions. Because communication devices have high temperature requirements, outdoor communication cabinets integrate a temperature control system. In high-temperature environments, the temperature control system can cool the air inside the cabinet to lower the internal air temperature and prevent the communication devices from operating at excessively high temperatures.

[0003] Typically, after outdoor communication cabinets are installed, the temperature control system operates continuously according to a pre-set fixed working mode. However, because the cooling capacity of the temperature control equipment is usually quite high in this fixed working mode, when the communication devices inside the cabinet are under light load (i.e., generating relatively little heat), if the cooling capacity of the temperature control equipment exceeds the cooling requirements of the cabinet, it will cause frequent start-ups and shutdowns. These frequent start-ups and shutdowns increase the relative humidity inside the cabinet, leading to condensation and potentially causing corrosion or even short circuits in the electronic components. Therefore, how to avoid frequent start-ups and shutdowns of the temperature control equipment to reduce condensation inside outdoor communication cabinets is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This application provides an outdoor communication cabinet and its control method, as well as an outdoor communication device. The outdoor communication cabinet can avoid the temperature control module from frequently starting and stopping, thereby reducing the condensation generated inside, and has strong applicability.

[0005] In a first aspect, this application provides an outdoor communication cabinet, which includes a cabinet body, a power module, a controller, and a temperature control module. The power module, controller, and temperature control module are integrated inside the cabinet body. The power module supplies power to the temperature control module and the communication device, and the temperature control module regulates the temperature inside the cabinet body. The controller is used to: control the temperature control module to cool multiple times within a first duration when the temperature control module is operating in a first working mode; and control the temperature control module to switch from the first working mode to the second working mode when the average duration of each cooling operation within the first duration is less than a second duration. Specifically, when the temperature control module is operating in the first working mode, it starts cooling when the temperature inside the cabinet body is greater than or equal to a first temperature, and stops cooling when the temperature inside the cabinet body is less than a second temperature. When the temperature control module is operating in the second working mode, it starts cooling when the temperature inside the cabinet body is greater than or equal to a third temperature, and stops cooling when the temperature inside the cabinet body is less than a fourth temperature. The first temperature is greater than the second temperature, the third temperature is greater than the fourth temperature, and the third temperature is greater than the first temperature.

[0006] In this embodiment, when the temperature control module is operating in the first or second working mode, the controller controls the temperature control module to start cooling to lower the internal temperature of the cabinet, preventing it from becoming too high. Conversely, the controller controls the temperature control module to stop cooling to prevent over-cooling and reduce energy consumption. In the first working mode, the temperature control module may frequently start and stop. For example, if the internal temperature of the cabinet is already relatively low before the temperature control module starts cooling, such as close to the first temperature, the module can quickly lower the internal temperature below the second temperature after each cooling cycle, resulting in short cooling durations and frequent start-stops. To prevent excessive condensation caused by continuous frequent start-stops, the controller detects whether the cooling duration of each cycle is too short. In this embodiment, when the controller detects that the average cooling duration of each cycle within the first time period is less than the second time period, it means that the cooling duration of each cycle is short, indicating frequent start-stops. The average cooling duration of each cooling cycle within the first time period is equal to the ratio of the total cooling duration to the number of cooling cycles within the first time period. The first and second time periods are preset by the controller, with the second time period being shorter than the first time period, and the first time period being shorter than the total cooling duration. Furthermore, when the controller detects frequent start-stop cycles of the temperature control module, it switches the module from the first operating mode to the second operating mode to prevent continuous frequent start-stop cycles. The principle behind this is that the internal temperature of the cabinet remains close to the first temperature before the temperature control module begins cooling, leading to frequent start-stop cycles in the first operating mode. Since the first temperature is lower than the third temperature, the internal temperature of the cabinet is usually lower than the third temperature before the module begins cooling. Therefore, when the temperature control module is operating in the second operating mode, the controller does not detect an internal temperature greater than or equal to the third temperature most of the time, and thus controls the temperature control module to stop cooling most of the time, preventing frequent cooling cycles. Meanwhile, since the temperature inside the cabinet is already relatively low, the cooling demand is not significant. Therefore, even if the controller stops the temperature control module from cooling most of the time, the temperature inside the cabinet will not become too high. Thus, in the outdoor communication cabinet provided in this embodiment, the controller switches the temperature control module to a second operating mode when it frequently starts and stops, preventing continuous frequent starts and stops, thereby reducing condensation and ensuring that the temperature inside the cabinet does not become too high. Furthermore, the detection and adjustment methods are simple, easy to implement, and highly applicable.

[0007] In one possible implementation, the difference between the third temperature and the fourth temperature is greater than or equal to the difference between the first temperature and the second temperature.

[0008] In this embodiment, the difference between the third temperature and the fourth temperature is greater than or equal to the difference between the first temperature and the second temperature. This means that compared to the first working mode, the temperature change inside the cabinet corresponding to the start of cooling and the stop of cooling is greater in the second working mode. Therefore, the cooling time required by the temperature control module to start cooling and stop cooling each time in the second working mode is longer, which can further ensure that the temperature control module will not frequently start and stop in the second working mode.

[0009] In one possible implementation, the difference between the third temperature and the fourth temperature is less than the difference between the first temperature and the second temperature, and the difference between the third temperature and the fourth temperature is greater than or equal to the temperature difference threshold.

[0010] In this embodiment, the difference between the third and fourth temperatures is less than the difference between the first and second temperatures. This means that compared to the first operating mode, the temperature change inside the cabinet during the cooling process in the second operating mode is smaller, from the start to the stop of cooling. Therefore, the cooling time required by the temperature control module in the second operating mode is shorter, thereby reducing energy consumption. Furthermore, to avoid frequent start-stop cycles that might occur when the difference between the third and fourth temperatures is small, this embodiment also ensures that the difference between the third and fourth temperatures is greater than or equal to a temperature threshold. This temperature threshold is preset by the controller. For example, the controller can summarize the specific value of the temperature threshold based on historical or experimental data from the cooling process in the second operating mode. Therefore, by controlling the difference between the third and fourth temperatures to be less than the difference between the first and second temperatures, and ensuring that the difference between the third and fourth temperatures is greater than or equal to the temperature threshold, the controller can prevent frequent start-stop cycles of the temperature control module and effectively reduce energy consumption, demonstrating strong applicability.

[0011] In one possible implementation, the controller is also used for:

[0012] If the duration of the temperature control module in the second working mode is greater than or equal to the third duration, the temperature control module is switched from the second working mode to the first working mode; the third duration is greater than the first duration.

[0013] In this embodiment, when the temperature control module is operating in the second working mode, the temperature inside the cabinet may gradually rise. To avoid overheating and improve the cooling effect of the temperature control module, the controller can switch the temperature control module from the second working mode to the first working mode. Furthermore, after the temperature control module switches to the first working mode, the controller can continuously monitor whether the temperature control module frequently starts and stops, thereby determining whether it is necessary to switch the temperature control module back to the second working mode. In this embodiment, the controller only needs to determine whether to switch the temperature control module back to the first working mode based on the duration the temperature control module operates in the second working mode, making the implementation principle simple.

[0014] In one possible implementation, the controller is also used for:

[0015] When the temperature control module is running in the second working mode, the temperature control module is controlled to cool multiple times within the fourth time period;

[0016] When the average duration of each cooling cycle within the fourth time period is greater than or equal to the fifth time period, the temperature control module switches from the second working mode to the first working mode; the fourth time period is greater than or equal to the first time period, and the fifth time period is greater than the second time period.

[0017] In this embodiment, when the temperature control module is operating in the second working mode, the temperature inside the cabinet may gradually rise. To prevent overheating and improve the cooling effect of the temperature control module, the controller can switch the module from the second working mode to the first working mode. As the internal temperature rises, the cooling time of each cycle by the temperature control module will be longer. The controller can determine whether to switch the temperature control module to the first working mode by detecting whether the average cooling time of each cycle is relatively long. In this embodiment, when the average cooling time of each cycle within the fourth time period is greater than or equal to the fifth time period, it means that the average cooling time is relatively long, and the controller can switch the module to the first working mode. In this embodiment, the controller can promptly switch the temperature control module to the first working mode by real-time detection of the average cooling time of each cycle, ensuring high reliability.

[0018] In one possible implementation, the temperature control module includes a compressor, and the duration of cooling by the temperature control module is equal to the duration of compressor operation.

[0019] In this embodiment, the compressor starts running synchronously when the temperature control module begins cooling, and stops running synchronously when the temperature control module stops cooling. Therefore, the controller can use the obtained compressor running time as the cooling time of the temperature control module with high accuracy.

[0020] In one possible implementation, the temperature control module includes a compressor; when the temperature control module is operating in a first working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a second temperature and less than a first temperature; when the temperature control module is operating in a second working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a fourth temperature and less than a third temperature.

[0021] In this embodiment, when the temperature control module is operating in the first working mode, and the internal temperature of the cabinet is greater than or equal to the second temperature and less than the first temperature, the internal temperature of the cabinet is within a suitable range. At this time, the controller keeps the compressor speed constant, which improves the stability of the temperature control module's operation. Similarly, when the temperature control module is operating in the second working mode, and the internal temperature of the cabinet is greater than or equal to the fourth temperature and less than the third temperature, the controller keeps the compressor speed constant, which also improves the stability of the temperature control module's operation.

[0022] In one possible implementation, the compressor speed is equal to the lower speed limit threshold while keeping the compressor speed constant.

[0023] In this embodiment, when the temperature control module is operating in the first working mode, if the temperature inside the cabinet is greater than or equal to the second temperature and less than the first temperature, it means that the current cooling power of the temperature control module is sufficient to lower the temperature inside the cabinet. At this time, the controller controls the compressor to operate at the lower speed limit threshold, which can effectively reduce the energy consumption of the temperature control module. Similarly, when the temperature control module is operating in the second working mode, if the temperature inside the cabinet is greater than or equal to the fourth temperature and less than the third temperature, the controller controls the compressor to operate at the lower speed limit threshold, which can effectively reduce the energy consumption of the temperature control module.

[0024] In one possible implementation, the first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, the third temperature is 37 degrees Celsius, the first duration is equal to 1 day, and the second duration is equal to 3 minutes.

[0025] In this embodiment, the specific values ​​of the first temperature, the second temperature, and the third temperature can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0026] In one possible implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the difference between the third temperature and the fourth temperature is equal to 4 degrees Celsius.

[0027] In this embodiment, the specific values ​​of the difference between the first temperature and the second temperature, and the difference between the third temperature and the fourth temperature, can be flexibly adjusted according to actual needs, and are suitable for different application scenarios.

[0028] In one possible implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the temperature difference threshold is equal to 1 degree Celsius.

[0029] In this embodiment, the specific value of the temperature difference threshold can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0030] In one possible implementation, the third duration is equal to 7 days or 30 days.

[0031] In this embodiment, the specific value of the third duration can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0032] In one possible implementation, the fourth duration is equal to 1 day, and the fifth duration is equal to 30 minutes.

[0033] In this embodiment, the specific value of the fifth duration can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0034] Secondly, this application provides an outdoor communication device, which includes an outdoor communication cabinet and a communication device. The outdoor communication cabinet includes a cabinet body, a power module, a controller, and a temperature control module. The power module, temperature control module, and communication device are integrated inside the cabinet body. The power module supplies power to the temperature control module and the communication device, and the temperature control module regulates the temperature inside the cabinet body. The controller is used to: control the temperature control module to cool multiple times within a first duration when the temperature control module is operating in a first working mode; and control the temperature control module to switch from the first working mode to the second working mode when the average duration of each cooling operation within the first duration is less than a second duration. Specifically, when the temperature control module is operating in the first working mode, it starts cooling when the temperature inside the cabinet body is greater than or equal to a first temperature, and stops cooling when the temperature inside the cabinet body is less than a second temperature. When the temperature control module is operating in the second working mode, it starts cooling when the temperature inside the cabinet body is greater than or equal to a third temperature, and stops cooling when the temperature inside the cabinet body is less than a fourth temperature. The first temperature is greater than the second temperature, the third temperature is greater than the fourth temperature, and the third temperature is greater than the first temperature.

[0035] In one possible implementation, the difference between the third temperature and the fourth temperature is greater than or equal to the difference between the first temperature and the second temperature.

[0036] In one possible implementation, the difference between the third temperature and the fourth temperature is less than the difference between the first temperature and the second temperature, and the difference between the third temperature and the fourth temperature is greater than or equal to the temperature difference threshold.

[0037] In one possible implementation, the controller is further configured to: control the temperature control module to switch from the second working mode to the first working mode when the duration of the temperature control module operating in the second working mode is greater than or equal to the third duration; the third duration is greater than the first duration.

[0038] In one possible implementation, the controller is further configured to: control the temperature control module to perform multiple cooling operations within a fourth duration when the temperature control module is operating in a second working mode; and control the temperature control module to switch from the second working mode to the first working mode when the average duration of each cooling operation within the fourth duration is greater than or equal to a fifth duration; wherein the fourth duration is greater than or equal to the first duration and the fifth duration is greater than the second duration.

[0039] In one possible implementation, the temperature control module includes a compressor, and the duration of cooling by the temperature control module is equal to the duration of compressor operation.

[0040] In one possible implementation, the temperature control module includes a compressor; when the temperature control module is operating in a first working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a second temperature and less than a first temperature; when the temperature control module is operating in a second working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a fourth temperature and less than a third temperature.

[0041] In one possible implementation, the compressor speed is equal to the lower speed limit threshold while keeping the compressor speed constant.

[0042] In one possible implementation, the first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, the third temperature is 37 degrees Celsius, the first duration is equal to 1 day, and the second duration is equal to 3 minutes.

[0043] In one possible implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the difference between the third temperature and the fourth temperature is equal to 4 degrees Celsius.

[0044] In one possible implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the temperature difference threshold is equal to 1 degree Celsius.

[0045] In one possible implementation, the third duration is equal to 7 days or 30 days.

[0046] In one possible implementation, the fourth duration is equal to 1 day, and the fifth duration is equal to 30 minutes.

[0047] Thirdly, this application also provides a control method for an outdoor communication cabinet, applied to an outdoor communication cabinet. The outdoor communication cabinet includes a cabinet body, a power module, a controller, and a temperature control module. The power module, controller, and temperature control module are integrated inside the cabinet body. The power module supplies power to the temperature control module and the communication device, and the temperature control module regulates the temperature inside the cabinet body. The method includes: when the temperature control module is operating in a first working mode, controlling the temperature control module to cool multiple times within a first duration; when the average duration of each cooling operation within the first duration is less than a second duration, controlling the temperature control module to switch from the first working mode to the second working mode; wherein, when the temperature control module is operating in the first working mode, when the temperature inside the cabinet body is greater than or equal to a first temperature, the temperature control module starts cooling, and when the temperature inside the cabinet body is less than a second temperature, the temperature control module stops cooling; when the temperature control module is operating in the second working mode, when the temperature inside the cabinet body is greater than or equal to a third temperature, the temperature control module starts cooling, and when the temperature inside the cabinet body is less than a fourth temperature, the temperature control module stops cooling; the first temperature is greater than the second temperature, the third temperature is greater than the fourth temperature, and the third temperature is greater than the first temperature.

[0048] In one possible implementation, the difference between the third temperature and the fourth temperature is greater than or equal to the difference between the first temperature and the second temperature.

[0049] In one possible implementation, the difference between the third temperature and the fourth temperature is less than the difference between the first temperature and the second temperature, and the difference between the third temperature and the fourth temperature is greater than or equal to the temperature difference threshold.

[0050] In one possible implementation, the method further includes: when the duration of the temperature control module operating in the second working mode is greater than or equal to the third duration, controlling the temperature control module to switch from the second working mode to the first working mode; the third duration is greater than the first duration.

[0051] In one possible implementation, the method further includes: when the temperature control module is operating in the second working mode, controlling the temperature control module to perform multiple cooling operations within a fourth duration; when the average duration of each cooling operation within the fourth duration is greater than or equal to a fifth duration, controlling the temperature control module to switch from the second working mode to the first working mode; the fourth duration is greater than or equal to the first duration, and the fifth duration is greater than the second duration.

[0052] In one possible implementation, the temperature control module includes a compressor, and the duration of cooling by the temperature control module is equal to the duration of compressor operation.

[0053] In one possible implementation, the temperature control module includes a compressor; when the temperature control module is operating in a first working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a second temperature and less than a first temperature; when the temperature control module is operating in a second working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a fourth temperature and less than a third temperature.

[0054] In one possible implementation, the compressor speed is equal to the lower speed limit threshold while keeping the compressor speed constant.

[0055] In one possible implementation, the first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, and the third temperature is 37 degrees Celsius.

[0056] In one possible implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the difference between the third temperature and the fourth temperature is equal to 4 degrees Celsius.

[0057] In one possible implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the temperature difference threshold is equal to 1 degree Celsius.

[0058] In one possible implementation, the third duration is equal to 7 days or 30 days.

[0059] In one possible implementation, the fourth duration is equal to 1 day, and the fifth duration is equal to 30 minutes.

[0060] It should be understood that the implementations and beneficial effects of the above-mentioned aspects of this application can be referenced from each other. Attached Figure Description

[0061] Figure 1 This is a schematic diagram of an application scenario for an outdoor communication device provided in an embodiment of this application;

[0062] Figure 2 A schematic diagram of the structure of an outdoor communication cabinet provided in an embodiment of this application;

[0063] Figure 3 This is a schematic diagram of a compressor speed change provided in an embodiment of this application;

[0064] Figure 4 This is another schematic diagram of compressor speed variation provided in an embodiment of this application;

[0065] Figure 5 Another schematic diagram of compressor speed variation provided in an embodiment of this application;

[0066] Figure 6This is a flowchart illustrating the control method for an outdoor communication cabinet provided in an embodiment of this application. Detailed Implementation

[0067] The outdoor communication equipment provided in this application embodiment is installed in outdoor environments such as roadsides, streets, walls, poles, parks, rooftops, mountainous areas, and flat ground. Specifically, the outdoor communication equipment can be applied in systems that require data processing in outdoor environments, such as data centers, communication base stations, telecommunications network systems, and environmental monitoring stations. This embodiment does not limit the environment in which the outdoor communication equipment is installed or the type of system it is applied to. For ease of understanding, the following description uses the application of outdoor communication equipment in a communication base station as an example.

[0068] Please see Figure 1 , Figure 1 This is a schematic diagram of an application scenario for an outdoor communication device provided in an embodiment of this application. Figure 1 The outdoor communication device 100 shown includes at least one communication device, such as communication device 120, communication device 130 and communication device 1n0, where n is a positive integer greater than or equal to 4.

[0069] exist Figure 1 In the illustrated application scenario, for example, communication device 120 is a baseband processing unit, and the external communication device connected to communication device 120 is a radio frequency remote unit or antenna, etc. The baseband processing unit is used to perform digital signal processing and radiate the signal into the air through the radio frequency remote unit or antenna. Communication device 130 is an optical transmission device, and the external communication network connected to communication device 130 is an optical fiber network or microwave antenna, etc. The optical transmission device is used to transmit the data of the communication base station to the external optical fiber network or microwave antenna to transmit the data of the communication base station back to the core network. Depending on the application scenario, the specific type of communication device can be flexibly selected, and the embodiments of this application do not limit the specific type and function of the communication device.

[0070] In practical applications, outdoor communication equipment 100 is typically used in open-air locations such as highways, mountainous areas, and rooftops. To provide a suitable outdoor physical working environment for the various communication devices within the outdoor communication equipment 100, the outdoor communication equipment 100 also includes an outdoor communication cabinet 110. This cabinet 110 houses the various communication devices and converts the electrical energy supplied by the power grid into the power supply voltage for each communication device, thereby distributing power to them. Furthermore, because the communication devices have relatively high temperature requirements for their operating environment, the outdoor communication cabinet 110 also integrates a temperature control module 111. When the temperature inside the outdoor communication cabinet 110 is high, the temperature control module 111 can activate cooling to lower the internal temperature of the outdoor communication cabinet 110, preventing excessively high temperatures from degrading the performance of the communication devices.

[0071] In some feasible implementations, when the traffic volume of the communication base station is low, the communication device is in a light-load state. This light-load state refers to a small ratio between the load borne by the communication device and its rated load (i.e., load rate). For example, the communication device is in a light-load state when the load rate is below 50%. In this light-load state, the operating current and voltage of the communication device are lower, resulting in less heat generation. If the outdoor environment is at a normal temperature, such as between 20 and 30 degrees Celsius, the temperature rise inside the outdoor communication cabinet 110 will be less due to the less heat generated by the communication device, thus reducing the cooling demand. However, as described in the background section, the cooling power of the temperature control module 111 in its fixed operating mode is relatively large, exceeding the cooling demand of the outdoor communication cabinet 110, leading to frequent start-stop cycles of the temperature control module 111. Furthermore, the frequent start-stop of the temperature control system increases the relative humidity inside the outdoor communication cabinet 110, leading to significant condensation and potentially causing corrosion or even short circuits in electronic components (such as communication devices). Therefore, preventing the frequent start-stop of the temperature control module inside the outdoor communication cabinet to reduce condensation is a critical technical problem that needs to be solved by those skilled in the art.

[0072] Based on this, the embodiments of this application provide an outdoor communication cabinet and its control method. The outdoor communication cabinet can adjust the working mode of the temperature control module to avoid the temperature control module from frequently starting and stopping, thereby reducing the condensation generated inside and making it highly applicable.

[0073] The above are merely examples of application scenarios for the power conversion device provided in this application, and are not exhaustive. This application does not limit the application scenarios.

[0074] The following content combines Figures 2 to 5 The specific implementation principle of the outdoor communication cabinet provided in the embodiments of this application will be introduced.

[0075] Please see Figure 2 , Figure 2 This is a structural schematic diagram of an outdoor communication cabinet provided in an embodiment of this application. Figure 2 The outdoor communication cabinet 200 shown includes a cabinet body 210, which houses at least one communication device. The cabinet body 210 is dustproof, waterproof, and anti-theft, providing reliable and secure mechanical protection for the internal communication device. It should be noted that this embodiment does not specifically limit the overall structure of the cabinet body 210, as long as it can accommodate the corresponding communication device and ensures that the communication device can be installed in the correct position.

[0076] In this embodiment, the outdoor communication cabinet 200 also includes a temperature control module 220, which is integrated inside the cabinet 210. This module regulates the air temperature and relative humidity inside the cabinet 210 to ensure a suitable working environment. For example, in cases of high outdoor temperatures or when the communication devices inside the cabinet 210 generate significant heat, the heat accumulates inside the cabinet 210, causing its internal temperature to rise. Excessive heat may lead to performance degradation or even hardware damage to the communication devices inside the cabinet 210. Therefore, to prevent high temperatures from affecting the communication devices inside the cabinet 210, the outdoor communication cabinet 200 uses the temperature control module 220 to cool the cabinet, thereby reducing its internal temperature. Similarly, in cases of low outdoor temperatures, the internal temperature of the cabinet 210 decreases. However, excessively low temperatures may also cause performance degradation or even shutdown of the communication devices. Therefore, to prevent the low-temperature environment from affecting the communication devices inside the cabinet 210, the outdoor communication cabinet 200 also uses a temperature control module 220 to generate heat, thereby increasing the internal temperature of the cabinet 210. Thus, by integrating the temperature control module 220 inside the cabinet 210, the outdoor communication cabinet 200 can provide an ideal and suitable working environment for the communication devices inside, thereby extending the service life of the communication devices and improving their operational reliability.

[0077] In this embodiment, the outdoor communication cabinet 200 further includes a power module 230, which is integrated inside the cabinet 210. The input terminal of the power module 230 is connected to the power grid to obtain electrical energy from the grid as the power supply for the outdoor communication cabinet 200. Simultaneously, the output terminal of the power module 230 is connected to a temperature control module 220 to provide operating voltage to the temperature control module 220, enabling it to operate normally. If communication devices are installed inside the cabinet 210, the output terminal of the power module 230 is also connected to each communication device to provide operating voltage to each device, enabling them to operate normally.

[0078] In some feasible implementations, the power module 230 is a base power supply or a rack power supply. Depending on the application scenario, the specific type of the power module 230 can be flexibly selected; this application embodiment does not limit the specific type of the power module 230.

[0079] It should be noted that, as described above, under normal temperature conditions, if the communication device is under light load, the temperature control module 220 will frequently start and stop, leading to a large amount of condensation inside the cabinet 210. Therefore, to reduce condensation, such as Figure 2As shown, the outdoor communication cabinet 200 also includes a controller 240, which is integrated inside the outdoor communication cabinet 200 and is used to control the working mode of the temperature control module 220 to avoid frequent start-stop of the temperature control module 220.

[0080] In this embodiment, after the outdoor communication cabinet is installed and the power module is powered on, enabling the controller, temperature control module, and communication device to start up, the controller first controls the temperature control module to operate in the first working mode.

[0081] When the temperature control module is operating in the first working mode, the controller monitors the internal temperature of the cabinet in real time to determine if it is too high, and thus decides whether to activate the cooling function of the temperature control module. For example, the controller installs a temperature sensor at the air inlet of the temperature control module to obtain the temperature at the air inlet, and this temperature is used as the internal temperature of the cabinet. Alternatively, the controller can obtain the internal temperature of the cabinet through other methods, which will not be described in detail in this embodiment. Further, when the controller detects that the internal temperature of the cabinet is greater than or equal to a first temperature, the controller activates the temperature control module to begin cooling. The first temperature represents the upper limit of the internal temperature of the cabinet when the communication device is in a suitable working environment. That is, when the internal temperature of the cabinet is greater than or equal to this first temperature, the working environment temperature of the communication device is too high, which may adversely affect the stability and lifespan of the communication device. Therefore, by activating the cooling function of the temperature control module when the internal temperature of the cabinet is detected to be greater than or equal to the first temperature, the controller can prevent the internal temperature of the cabinet from becoming too high and ensure that the communication device can operate stably in a suitable working environment. The first temperature is preset by the controller, and its specific value can be flexibly adjusted according to the needs of the actual scenario. For example, when an outdoor communication cabinet is used in a data center, the suitable ambient temperature for the communication device is usually 24 to 25 degrees Celsius, so the first temperature can be set to 26 degrees Celsius.

[0082] In some feasible implementations, the temperature control module includes components such as a compressor, condenser, capillary tube, evaporator, and fan. During the refrigeration process of the temperature control module, the compressor draws in gaseous refrigerant from the evaporator, compresses it to a high-temperature, high-pressure state, and then discharges it into the condenser. The high-temperature, high-pressure gaseous refrigerant releases heat in the condenser and is cooled into a low-temperature, high-pressure liquid refrigerant. This liquid refrigerant then passes through the capillary tube for throttling, becoming a low-temperature, low-pressure liquid refrigerant, which enters the evaporator. The liquid refrigerant absorbs heat in the evaporator and transforms back into gaseous refrigerant, which is then drawn back into the compressor. This process repeats, forming a refrigeration cycle. It should be noted that the above are merely examples, and the embodiments of this application do not limit the specific structure and refrigeration principle of the temperature control module.

[0083] In some feasible implementations, when the internal temperature of the cabinet is greater than or equal to a first temperature, the higher the internal temperature, the greater the difference between the actual internal temperature and the suitable temperature value. Therefore, the temperature difference that the temperature control module needs to adjust needs to be greater, meaning a higher cooling demand. In this case, to quickly lower the internal temperature to the suitable value, the controller can increase the compressor speed in the temperature control module, thereby increasing the cooling power of the module. Specifically, when the internal temperature is high, a higher compressor speed results in faster refrigerant circulation within the various components of the temperature control module. This allows the module to expel more heat from the outside of the cabinet per unit time, increasing its cooling power and thus lowering the internal temperature of the cabinet more quickly.

[0084] Conversely, when the internal temperature of the cabinet is greater than or equal to the first temperature, the lower the internal temperature, the smaller the difference between the actual internal temperature and the suitable temperature. This means the temperature control module needs to adjust a smaller temperature difference, resulting in lower cooling demand. In this case, the cooling demand inside the cabinet is relatively low. To avoid over-cooling and reduce energy waste, the controller can reduce the compressor speed, thereby reducing the cooling power of the temperature control module. Specifically, when the internal temperature is low, a lower compressor speed results in slower refrigerant circulation, leading to lower cooling power from the temperature control module and thus reducing energy consumption.

[0085] Therefore, it can be seen that when the temperature control module is running in the first working mode, the controller adjusts the compressor speed according to the temperature inside the cabinet. This allows the temperature inside the cabinet to be reduced to a suitable value as quickly as possible when the cooling demand is high, or the energy consumption of the temperature control module to be reduced when the cooling demand is low, making it highly adaptable.

[0086] To facilitate understanding of how the controller adjusts the compressor speed based on the internal temperature of the cabinet, the following content combines... Figure 3To explain, Figure 3 This is a schematic diagram of the compressor speed variation provided in an embodiment of this application.

[0087] exist Figure 3 In the diagram, the vertical axis represents the compressor speed in the temperature control module, with RPM1 representing the upper limit threshold of the compressor speed (maximum speed) and RPM2 representing the lower limit threshold of the compressor speed (minimum speed). The horizontal axis represents the temperature inside the cabinet, with T1 representing the first temperature set by the controller and Ta being a temperature value set by the controller. Figure 3 As shown, when the controller detects that the temperature inside the cabinet is greater than or equal to T1, it controls the compressor to start running at the lowest speed RPM2 to enable the temperature control module to begin cooling. Simultaneously, during the cooling process, the controller monitors the temperature changes inside the cabinet in real time. When the controller detects that the temperature inside the cabinet is less than or equal to T1, the temperature inside the cabinet is suitable, meaning that the current cooling power of the temperature control module is sufficient to lower the temperature inside the cabinet. Therefore, to avoid energy waste, the controller controls the compressor to continue running at the lowest speed RPM2. Conversely, if the controller detects that the temperature inside the cabinet rises to greater than T1, it means that the current cooling power of the temperature control module is insufficient to lower the temperature inside the cabinet. Therefore, to effectively regulate the temperature reduction, the controller controls the compressor speed to increase. Furthermore, when the temperature inside the cabinet is greater than T1 but less than Ta, the controller adjusts the compressor speed proportionally to the temperature inside the cabinet. Additionally, when the temperature inside the cabinet is greater than or equal to Ta, the controller controls the compressor speed to the maximum speed RPM1, i.e., controls the compressor to run at full speed.

[0088] In this embodiment, when the temperature control module is operating in the first working mode, after the controller starts cooling, if the outdoor ambient temperature and the heat generated by the communication device remain stable, the temperature inside the cabinet will gradually decrease. Furthermore, to avoid excessive cooling, the controller will continuously monitor whether the temperature inside the cabinet is low enough to determine whether the temperature control module needs to stop cooling. Specifically, during the cooling process, when the controller detects that the temperature inside the cabinet has dropped below a second temperature, the controller stops cooling. The second temperature refers to the lower limit of the internal temperature of the cabinet while ensuring a suitable internal temperature and avoiding excessive cooling. In other words, if the temperature control module continues cooling when the internal temperature is below this second temperature, the ambient temperature of the communication device may become too low, and continuous high-load operation of the temperature control module will result in energy waste. Therefore, by controlling the temperature control module to stop cooling when the internal temperature is detected to be below the second temperature, the controller can avoid excessive cooling, reduce energy consumption of the temperature control module, and prevent continuous high-load operation of the temperature control module. It is understandable that the second temperature is lower than the first temperature, and the second temperature is preset by the controller. The specific value of the second temperature can be flexibly adjusted according to the needs of the actual scenario. For example, when an outdoor communication cabinet is used in a data center, the suitable ambient temperature for the communication device is usually 24 to 25 degrees Celsius, so the aforementioned second temperature can be set to 24 degrees Celsius.

[0089] For example, please refer to [the document / reference]. Figure 3 , Figure 3 The T2 shown represents the second temperature set by the controller. For example... Figure 3 As shown, when the controller detects that the temperature inside the cabinet is greater than or equal to T1, it controls the compressor to start running at the lowest speed RPM2, so that the temperature control module begins cooling. During the cooling process, when the controller detects that the temperature inside the cabinet is less than T1 but greater than or equal to T2, the temperature inside the cabinet is relatively suitable, and the controller keeps the compressor speed constant to improve the stability of compressor operation. Simultaneously, the controller can also maintain the compressor speed at the lowest speed RPM2 to reduce energy consumption of the temperature control module. Furthermore, when the temperature inside the cabinet drops below T2, the temperature control module may over-cool; in this case, the controller controls the compressor speed to 0, i.e., the compressor stops running, thus stopping the temperature control module from cooling.

[0090] In some feasible implementations, after the controller stops the temperature control module from cooling, it can put the module into standby mode. In standby mode, the temperature control module no longer cools, but the fan will continue to run to maintain air circulation inside the cabinet.

[0091] It should be noted that, since the internal temperature of the cabinet may gradually rise after the temperature control module stops cooling, the controller continues to monitor the internal temperature in real time after putting the temperature control module into standby mode to prevent it from becoming too high. When the internal temperature is greater than or equal to the first temperature mentioned above, the controller restarts the temperature control module to cool down, thus lowering the internal temperature. When the internal temperature is lower than the second temperature, the controller stops the cooling module again. Therefore, when the temperature control module is operating in the first working mode, the controller can control the module to cool multiple times based on the preset first and second temperatures to flexibly adjust the internal temperature of the cabinet.

[0092] In some application scenarios, as described above, when the temperature control module is operating in the first working mode, if the cooling demand inside the cabinet remains very low, it may cause the temperature control module to frequently start and stop. For example, when the heat generated by the communication device is low and the outdoor environment is at normal temperature, the temperature inside the cabinet is mostly close to the first temperature set by the controller, resulting in a very small temperature difference that the temperature control module needs to adjust, meaning the cooling demand inside the cabinet is very low. In this case, after the temperature control module starts cooling, the temperature inside the cabinet quickly drops below the second temperature, and the controller quickly stops the temperature control module from cooling. This cycle repeats, causing the temperature control module to frequently start and stop.

[0093] It's important to note that during the cooling process of the temperature control module, the air inside the cabinet comes into contact with the evaporator. The evaporator's low temperature causes water vapor in the air to condense into water droplets and be discharged outdoors through the drain pipe, thus reducing the humidity inside the cabinet and achieving dehumidification. However, when the temperature control module frequently starts and stops, because each cooling cycle is very short, the drain pipe or dehumidifier may not activate in time. This prevents the temperature control module from fully condensing and expelling water vapor from the air during the brief cooling process, resulting in relatively high absolute humidity inside the cabinet. When the temperature control module starts cooling again, the temperature drop inside the cabinet causes the relative humidity to rise, leading to the precipitation of water vapor in the air and the formation of condensation.

[0094] Therefore, to avoid excessive condensation inside the cabinet, the controller needs to prevent the temperature control module from frequently starting and stopping. To this end, in this embodiment, the controller can detect in real time whether the temperature control module is frequently starting and stopping in the first operating mode, and adjust the operating mode of the temperature control module promptly when frequent starting and stopping is detected.

[0095] As described above, when the temperature control module frequently starts and stops, its cooling duration will be relatively short. The controller can determine if this frequent start-stop behavior is occurring by detecting whether the average cooling duration of each cycle is short. Specifically, when the temperature control module is operating in the first working mode, the controller controls the module to cool multiple times within a first duration and determines whether frequent start-stop behavior is occurring by detecting the average cooling duration of each cycle within that first duration. The first duration can be understood as the duration required for the controller to detect frequent start-stop behavior. This first duration is preset by the controller, and its specific value can be flexibly adjusted according to the needs of the actual scenario. For example, the first duration can be set to 1 day (24 hours). Furthermore, the average cooling duration of each cycle within the first duration refers to the ratio of the total cooling duration within that first duration to the number of cooling cycles within that first duration. The number of cooling cycles refers to the number of times the temperature control module starts cooling and stops.

[0096] For example, assuming the first duration is equal to 1 day, and the temperature control module cools 5 times within 1 day, with each cooling session lasting 30 minutes, 20 minutes, 5 minutes, 10 minutes, and 40 minutes respectively, the total cooling time of the temperature control module within 1 day is equal to 105 minutes. Therefore, the average cooling time per session within 1 day is equal to 21 minutes. The above is merely an example and does not constitute a limitation on the embodiments of this application.

[0097] In some feasible implementations, as described above, when the temperature control module starts cooling, both the fan and compressor within it will operate continuously. When the temperature control module stops cooling, the compressor will stop working, while the fan will continue to run to maintain air circulation inside the cabinet. Therefore, the compressor's operating time is the cooling duration of the temperature control module. Thus, the controller can accurately determine the cooling duration of the temperature control module by detecting the compressor's operating time.

[0098] In this embodiment, when the controller detects that the average cooling duration of the temperature control module within a first duration is less than the second duration, it means that the average cooling duration of the temperature control module is relatively short. Therefore, the controller can determine that the temperature control module is frequently starting and stopping in the first operating mode. The second duration is preset by the controller. Specifically, the controller can summarize the value of the second duration based on historical or experimental data of frequent start-stop events of the temperature control module, and the value of the second duration can be flexibly adjusted according to the needs of the actual scenario. For example, the second duration can be set to 3 minutes; this embodiment does not limit this setting.

[0099] Furthermore, when the controller detects that the temperature control module is frequently starting and stopping in the first working mode, in order to minimize condensation inside the cabinet, the controller controls the temperature control module to switch from the first working mode to the second working mode.

[0100] It should be noted that when the temperature control module is operating in the second working mode, the controller monitors the internal temperature of the cabinet in real time to determine if it is too high, and thus decides whether to activate the cooling function of the temperature control module. Furthermore, when the controller detects that the internal temperature of the cabinet is greater than or equal to a third temperature, the controller activates the cooling function of the temperature control module. This third temperature is greater than the first temperature. In other words, compared to the first working mode, the internal temperature of the cabinet is higher when the temperature control module activates cooling in the second working mode. The third temperature is preset by the controller, and its value can be flexibly adjusted according to the needs of the actual scenario; this embodiment does not impose any limitations on this.

[0101] It should be noted that, as explained above, the reason for the frequent start-stop of the temperature control module in the first operating mode is that the temperature inside the cabinet is mostly close to the first temperature, making the temperature difference that the temperature control module needs to adjust very small. Therefore, after the temperature control module starts cooling, the temperature inside the cabinet can quickly drop below the second temperature, leading to frequent start-stops. When the temperature control module is operating in the second operating mode, the controller increases the internal temperature of the cabinet corresponding to when the temperature control module starts cooling (i.e., the third temperature is greater than the first temperature). This allows the internal temperature to remain close to the first temperature, meaning that the controller cannot detect an internal temperature greater than or equal to the third temperature most of the time. Therefore, the controller will control the temperature control module to stop cooling most of the time, thus avoiding frequent cooling.

[0102] For example, suppose the first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, and the third temperature is 37 degrees Celsius. When the temperature control module is operating in the first working mode, and the internal temperature of the cabinet is mostly around 27 degrees Celsius, since the internal temperature is very close to the first temperature, the internal temperature can quickly drop from 27 degrees Celsius to the second temperature of 24 degrees Celsius after the temperature control module starts cooling, resulting in frequent start-stop operations. In this embodiment, the controller immediately switches the temperature control module from the first working mode to the second working mode after detecting frequent start-stop operations. When the temperature control module is operating in the second working mode, since the internal temperature of the cabinet is mostly around 27 degrees Celsius, the controller rarely detects an internal temperature greater than or equal to the third temperature of 37 degrees Celsius. Therefore, the controller will mostly stop the temperature control module from cooling (i.e., enter standby mode), significantly reducing the number of times the controller controls the temperature control module to cool, thereby avoiding frequent start-stop operations. Furthermore, the reason the controller switches the temperature control module from the first operating mode to the second operating mode is that the temperature inside the cabinet is mostly close to the first temperature, meaning the internal temperature is not high to begin with. Therefore, although the controller stops cooling most of the time when the temperature control module is operating in the second mode to avoid frequent start-stop cycles, this does not cause the internal temperature of the cabinet to become too high. Additionally, when the internal temperature of the cabinet briefly rises to 37 degrees Celsius or higher, the controller can still control the cooling module to ensure that the internal temperature of the cabinet does not become excessively high.

[0103] In summary, when the internal temperature of the cabinet is close to the first temperature, meaning the cooling demand inside the cabinet is relatively low, the temperature control module operating in the first working mode will cause frequent start-stop cycles. Therefore, the controller switches the temperature control module to the second working mode, which increases the internal temperature of the cabinet corresponding to the temperature at which the temperature control module begins cooling, thus minimizing frequent start-stop cycles. Simultaneously, when the controller detects that the internal temperature of the cabinet is greater than or equal to the third temperature, it controls the temperature control module to begin cooling, preventing the internal temperature of the cabinet from becoming excessively high and ensuring that the communication device operates stably in a suitable temperature environment.

[0104] In some feasible implementations, when the temperature control module is operating in the second working mode, if the internal temperature of the cabinet is greater than or equal to the third temperature, the higher the internal temperature, the greater the difference between the actual internal temperature and the suitable temperature value. Therefore, the temperature control module needs to adjust a larger temperature difference, meaning a higher cooling demand. In this case, to quickly lower the internal temperature to the suitable value, the controller can increase the compressor speed in the temperature control module to increase its cooling power. Conversely, if the internal temperature is greater than or equal to the third temperature, the lower the internal temperature, the smaller the difference between the actual internal temperature and the suitable temperature value. Therefore, the temperature control module needs to adjust a smaller temperature difference, meaning a lower cooling demand. In this case, the cooling demand inside the cabinet is relatively low. To avoid over-cooling and reduce energy waste, the controller can decrease the compressor speed to reduce the cooling power of the temperature control module.

[0105] Therefore, it can be seen that when the temperature control module is operating in the second working mode, the controller adjusts the compressor speed according to the internal temperature of the cabinet. This allows the internal temperature to be lowered to a suitable value as quickly as possible when cooling demand is high, or the energy consumption of the temperature control module to be reduced when cooling demand is low, demonstrating strong applicability. For ease of understanding, the following content combines... Figure 4 To explain, Figure 4 This is another schematic diagram of compressor speed variation provided in an embodiment of this application.

[0106] exist Figure 4 In the diagram, the vertical axis represents the compressor speed in the temperature control module, with RPM1 representing the compressor's highest speed and RPM2 representing its lowest speed; the horizontal axis represents the temperature inside the cabinet, with T3 representing the third temperature set by the controller, and Tb being a temperature value set by the controller. For example... Figure 4As shown, when the controller detects that the temperature inside the cabinet is greater than or equal to T3, the controller controls the compressor to start running at the lowest speed RPM2 to enable the temperature control module to begin cooling. Simultaneously, during the cooling process, the controller monitors the temperature changes inside the cabinet in real time. When the controller detects that the temperature inside the cabinet is less than or equal to T3, the temperature inside the cabinet is relatively suitable, meaning that the current cooling power of the temperature control module is sufficient to lower the temperature inside the cabinet. Therefore, to avoid energy waste, the controller controls the compressor to continue running at the lowest speed RPM2. Conversely, if the controller detects that the temperature inside the cabinet rises to greater than T3, meaning that the current cooling power of the temperature control module is insufficient to lower the temperature inside the cabinet, the controller controls the compressor speed to increase in order to effectively regulate the temperature reduction. Furthermore, when the temperature inside the cabinet is greater than T3 but less than Tb, the controller adjusts the compressor speed proportionally to the temperature inside the cabinet. Additionally, when the temperature inside the cabinet is greater than or equal to Tb, the controller controls the compressor speed to the maximum speed RPM1, i.e., controls the compressor to run at full speed. It should be noted that... Figure 4 The Tb shown is Figure 3 The Ta values ​​shown may be equal or unequal, and this application does not impose any restrictions on this.

[0107] In this embodiment, when the temperature control module is operating in the second working mode, after the controller starts cooling the module, if the outdoor ambient temperature and the heat generated by the communication device remain stable, the temperature inside the cabinet will gradually decrease. Furthermore, to avoid excessive cooling, the controller will continuously monitor whether the temperature inside the cabinet is low enough to determine whether the temperature control module needs to stop cooling. Specifically, during the cooling process, when the controller detects that the temperature inside the cabinet has dropped below a fourth temperature, the controller stops the cooling. The fourth temperature refers to the lower limit of the internal temperature of the cabinet when the temperature control module is operating in the second working mode, ensuring a suitable internal temperature while avoiding excessive cooling. In other words, if the temperature control module continues cooling when the internal temperature is below this fourth temperature, it may lead to an excessively low operating environment temperature for the communication device, or the temperature control module may operate at a high load continuously, resulting in energy waste. Therefore, by controlling the temperature control module to stop cooling when the internal temperature is detected to be below the fourth temperature, the controller can avoid excessive cooling, reduce energy consumption of the temperature control module, and prevent the temperature control module from operating at a high load continuously.

[0108] The fourth temperature is lower than the third temperature, and it is preset by the controller. Specifically, the fourth temperature can be greater than or equal to the second temperature, or it can be lower than the second temperature. The specific value of the fourth temperature can be flexibly adjusted according to the needs of the actual scenario.

[0109] In some feasible implementations, the controller can set the difference between the third and fourth temperatures to be equal to the difference between the first and second temperatures. For example, in the case where the first temperature is 26 degrees Celsius and the second temperature is 24 degrees Celsius, when the controller sets the third temperature to 37 degrees Celsius, since the difference between the first and second temperatures is equal to 2 degrees Celsius, the controller can set the fourth temperature to 33 degrees Celsius.

[0110] In some feasible implementations, the controller can set the difference between the third and fourth temperatures to be greater than the difference between the first and second temperatures. In this case, compared to the first operating mode, the temperature change inside the cabinet corresponding to the start and stop of cooling is greater in the second operating mode. Therefore, the cooling time required for each cooling cycle is longer, which further ensures that the temperature control module does not frequently start and stop.

[0111] For example, assuming the first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, the third temperature is 37 degrees Celsius, and the fourth temperature is 33 degrees Celsius, the difference between the first and second temperatures is 2 degrees Celsius, and the difference between the third and fourth temperatures is 4 degrees Celsius. When the temperature control module is operating in the first working mode, and the temperature inside the cabinet is mostly maintained at around 27 degrees Celsius, since the internal temperature is very close to the first temperature and the difference between the first and second temperatures is small, the internal temperature can quickly drop from 27 degrees Celsius to the second temperature of 24 degrees Celsius after the temperature control module starts cooling, causing the temperature control module to frequently start and stop. In this embodiment, the controller immediately switches the temperature control module from the first working mode to the second working mode after detecting frequent start and stop of the temperature control module. When the temperature control module is operating in the second working mode, since the internal temperature is mostly maintained at around 27 degrees Celsius, the controller will mostly stop the temperature control module from cooling, thus avoiding frequent start and stop of the temperature control module. Understandably, since the internal temperature of the cabinet mostly remains around 27 degrees Celsius, the controller significantly reduces the number of times it initiates cooling when the temperature control module is operating in the second working mode, thus preventing frequent start-stop cycles. Simultaneously, when the internal temperature of the cabinet is greater than or equal to the third temperature of 37 degrees Celsius, the controller can still control the cooling module to ensure the internal temperature does not become excessively high. Furthermore, because the difference between the third and fourth temperatures is relatively large, the time required for the temperature control module to adjust the internal temperature from above or equal to the third temperature to below the fourth temperature is longer. In other words, the cooling duration of each cycle in the second working mode is longer, further ensuring that the temperature control module does not frequently start and stop.

[0112] For ease of understanding, the following content is combined with Figure 4 Please refer to the following explanation. Figure 4 , Figure 4 The T4 shown represents the fourth temperature set by the controller. For example... Figure 4As shown, when the controller detects that the temperature inside the cabinet is greater than or equal to T3, it controls the compressor to start running at the lowest speed RPM2, so that the temperature control module begins cooling. During the cooling process of the temperature control module, when the controller detects that the temperature inside the cabinet is less than T3 but greater than or equal to T4, the temperature inside the cabinet is relatively suitable, and the controller keeps the compressor speed constant, which can improve the stability of compressor operation. At the same time, the controller can also control the compressor speed to remain at the lowest speed RPM2 to reduce the energy consumption of the temperature control module. Furthermore, when the temperature inside the cabinet drops to less than T4, the temperature control module may over-cool, so the controller controls the compressor speed to be 0, that is, the compressor stops running, thus causing the temperature control module to stop cooling. It can be understood that, compared to Figure 3 The difference between T1 and T2 shown is... Figure 4 The difference between T3 and T4 shown is significantly larger, therefore... Figure 4 In the middle, the temperature control module will take longer to cool each time.

[0113] It should be noted that, since the difference between the third and fourth temperatures is greater than the difference between the first and second temperatures, the temperature control module will cool for a longer period of time in the second working mode, which will result in greater energy consumption for each cooling cycle.

[0114] In some feasible implementations, to reduce energy consumption of the temperature control module when it operates in the second working mode, the controller can also set the difference between the third and fourth temperatures to be smaller than the difference between the first and second temperatures. In this case, compared to the first working mode, the temperature change inside the cabinet during the second working mode is smaller, corresponding to the start and stop of cooling. Therefore, the cooling time required for each cooling cycle is shorter, thereby reducing energy consumption. Furthermore, since the third temperature is greater than the first temperature, it is understood from the above that when the temperature control module is operating in the second working mode, the controller will still control the temperature control module to stop cooling most of the time, thus avoiding frequent start-stop cycles.

[0115] Furthermore, when the difference between the third and fourth temperatures is very small, the temperature control module may frequently start and stop. In this case, although the third temperature is higher than the first temperature, the small difference between the third and fourth temperatures results in minimal temperature change inside the cabinet from the start to the stop of cooling, potentially leading to frequent start-stops. Therefore, in this embodiment, the controller sets the difference between the third and fourth temperatures to be less than the difference between the first and second temperatures, while also setting it to be greater than or equal to a temperature threshold. This temperature threshold is preset by the controller. Specifically, the controller can derive the temperature threshold value based on historical or experimental data from the temperature control module's cooling in the second operating mode. For example, the temperature threshold can be set to 1 degree Celsius. That is, when the difference between the third and fourth temperatures is less than the difference between the first and second temperatures, and when the difference between the third and fourth temperatures is greater than or equal to 1 degree Celsius, the temperature control module will not frequently start and stop, effectively reducing energy consumption. The temperature threshold value can be flexibly adjusted according to the needs of the actual scenario, and this application embodiment does not impose any restrictions on it.

[0116] For ease of understanding, the following content is combined with Figure 5 To explain, Figure 5 This is another schematic diagram of compressor speed variation provided in an embodiment of this application. Figure 5 In the diagram, the vertical axis represents the compressor speed in the temperature control module, with RPM1 representing the compressor's highest speed and RPM2 representing its lowest speed. The horizontal axis represents the temperature inside the cabinet, with T3 representing the third temperature set by the controller, T4 representing the fourth temperature set by the controller, and Tc being a temperature value set by the controller. It can be understood that, compared to... Figure 4 The difference between T3 and T4 shown is... Figure 5 The difference between T3 and T4 shown is significantly smaller, therefore Figure 5 In this configuration, the temperature control module will cool for a shorter period of time each time. Furthermore, Figure 5 The specific implementation of the corresponding controller can be found in the above. Figure 4 The specific implementation methods shown are not described in detail here.

[0117] In some feasible implementations, when the temperature control module is operating in the second working mode, during the process of the controller initiating cooling by the temperature control module, if the internal temperature of the cabinet drops below a fourth temperature, the controller controls the temperature control module to stop cooling. After the temperature control module stops cooling, the controller can control the temperature control module to enter standby mode. In standby mode, the temperature control module no longer cools, but the fan continues to run to maintain air circulation inside the cabinet. Furthermore, since the internal temperature of the cabinet may gradually rise after the temperature control module stops cooling, to avoid excessively high internal temperatures, the controller continues to monitor the internal temperature of the cabinet in real time after controlling the temperature control module to enter standby mode. When the internal temperature of the cabinet is greater than or equal to the aforementioned third temperature, the controller restarts the temperature control module to begin cooling to lower the internal temperature of the cabinet, and again controls the temperature control module to stop cooling when the internal temperature of the cabinet falls below the fourth temperature. Therefore, when the temperature control module is operating in the second working mode, the controller can control the temperature control module to perform cooling multiple times based on preset third and fourth temperatures to flexibly adjust the internal temperature of the cabinet.

[0118] In some feasible implementations, when the temperature control module is operating in the second working mode, if outdoor environmental climate changes cause a temperature rise, or if increased traffic from the communication device leads to increased heat generation inside the cabinet, the internal temperature of the cabinet may gradually rise, increasing the cooling requirement inside the cabinet. In this case, to improve the cooling effect of the temperature control module and quickly lower the internal temperature to a suitable level, ensuring the internal temperature does not become excessively high, the controller can switch the temperature control module from the second working mode to the first working mode.

[0119] As described above, when the cooling demand inside the cabinet is high, the cooling time of the temperature control module will be longer. The controller can determine whether the cooling demand inside the cabinet is high by detecting whether the average cooling time of each cooling cycle by the temperature control module is relatively long. Specifically, when the temperature control module is operating in the second working mode, the controller controls the temperature control module to perform multiple cooling cycles within a fourth time period, and determines whether the cooling demand inside the cabinet is high by detecting the average cooling time of each cycle within the fourth time period. The fourth time period can be understood as the duration required for the controller to detect whether the cooling demand inside the cabinet is high. This fourth time period is preset by the controller, and its specific value can be flexibly adjusted according to the needs of the actual scenario. Specifically, the fourth time period can be set to be greater than or equal to the first time period mentioned above. For example, if the first time period is 1 day, the fourth time period can be equal to 2 days or 1 day. Furthermore, the average cooling time of each cooling cycle by the temperature control module within the fourth time period refers to the ratio of the total cooling time of the temperature control module within the fourth time period to the number of cooling cycles within the fourth time period.

[0120] In this embodiment, when the controller detects that the average cooling duration of each cooling cycle by the temperature control module within the fourth time period is greater than or equal to the fifth time period, it means that the average cooling duration of each cooling cycle by the temperature control module is relatively long. Therefore, the controller can determine that the cooling demand inside the cabinet is relatively high at this time. It is understood that the fifth time period is longer than the second time period mentioned above, and this fifth time period is preset by the controller. Furthermore, the value of the fifth time period can be flexibly adjusted according to the needs of the actual scenario. For example, the fifth time period can be set to 30 minutes.

[0121] In some feasible implementations, the controller can also directly switch the temperature control module from the second operating mode to the first operating mode when the duration of the second operating mode is greater than or equal to the third operating mode. Furthermore, after the temperature control module switches back to the first operating mode, the controller can continuously monitor whether the temperature control module is frequently starting and stopping, thereby determining whether it needs to switch the temperature control module back to the second operating mode. Therefore, when the temperature control module is running in the second operating mode, the controller does not need to perform statistical calculations on the duration and number of cooling cycles to determine whether to switch the temperature control module back to the first operating mode, thus significantly reducing the complexity of the controller's processing flow. The aforementioned third operating mode is preset by the controller, and its specific value can be flexibly adjusted according to the needs of the actual scenario. Specifically, the third operating mode is greater than or equal to the aforementioned first operating mode; for example, if the first operating mode is 1 day, the third operating mode can be equal to 7 days or 30 days.

[0122] In some feasible implementations, in addition to installing power modules, temperature control modules, and controllers, the outdoor communication cabinet provided in this application embodiment can also install battery modules, power distribution modules, monitoring modules, storage control modules, and other supporting modules, so that the outdoor communication cabinet can provide reliable mechanical and environmental protection for the normal operation of the communication device.

[0123] Please see Figure 6 , Figure 6 This is a flowchart illustrating a control method for an outdoor communication cabinet provided in an embodiment of this application. The control method for an outdoor communication cabinet provided in this embodiment is applicable to... Figures 1 to 5 The controller in the corresponding specific implementation. Specifically, the control method for the outdoor communication cabinet may include the following steps:

[0124] S101. When the temperature control module is operating in the first working mode, the temperature control module is controlled to cool multiple times within a first time period; wherein, when the temperature control module is operating in the first working mode, when the temperature inside the cabinet is greater than or equal to the first temperature, the temperature control module starts cooling, and when the temperature inside the cabinet is less than the second temperature, the temperature control module stops cooling; the first temperature is greater than the second temperature.

[0125] Understandably, the purpose of the outdoor communication cabinet's temperature control module starting cooling is to regulate and lower the internal temperature of the cabinet to prevent it from becoming too high. Conversely, the purpose of stopping cooling is to prevent over-cooling and reduce the module's energy consumption. Because the internal temperature of the cabinet continuously changes, the outdoor communication cabinet will control the temperature control module to perform cooling multiple times to stabilize the internal temperature within a suitable range.

[0126] For a detailed implementation of S101, please refer to the above. Figures 1 to 5 The implementation method of the outdoor communication cabinet is not described in detail in the embodiments of this application.

[0127] S102. When the average cooling duration of each cooling cycle within the first time period is less than the second time period, the temperature control module switches from the first working mode to the second working mode. In the second working mode, when the temperature control module is running, the temperature control module starts cooling when the temperature inside the cabinet is greater than or equal to the third temperature, and stops cooling when the temperature inside the cabinet is less than the fourth temperature. The third temperature is greater than the fourth temperature and the third temperature is greater than the first temperature.

[0128] It is understandable that the temperature control module may frequently start and stop in the first operating mode. For example, if the temperature inside the cabinet is already relatively low before the temperature control module starts cooling, such as close to the first temperature, the temperature control module can quickly adjust the temperature inside the cabinet below the second temperature after each cooling cycle, resulting in a short cooling duration for the outdoor communication cabinet and thus frequent start and stop of the temperature control module. In this embodiment, when the outdoor communication cabinet detects that the average cooling duration of each cycle by the temperature control module within the first time period is less than the second time period, it means that the cooling duration of each cycle by the temperature control module is relatively short, i.e., the temperature control module is frequently starting and stopping. At this time, the outdoor communication cabinet can avoid the continuous frequent start and stop of the temperature control module by controlling the temperature control module to switch from the first operating mode to the second operating mode, thereby detecting the generation of condensation. At the same time, the temperature control module can still adjust the temperature inside the cabinet in the second operating mode to avoid overheating, and the detection and adjustment methods are simple, easy to implement, and highly applicable.

[0129] For a detailed implementation of S102, please refer to the above. Figures 1 to 5The implementation method of the outdoor communication cabinet is not described in detail in the embodiments of this application.

[0130] In an optional implementation, the difference between the third temperature and the fourth temperature is greater than or equal to the difference between the first temperature and the second temperature.

[0131] It is understandable that the difference between the third and fourth temperatures is greater than the difference between the first and second temperatures. This means that compared to the first working mode, the temperature change inside the cabinet is greater in the second working mode, from the start of cooling to the stop of cooling. Therefore, the cooling time required by the temperature control module in the second working mode is longer each time from the start of cooling to the stop of cooling. This can further ensure that the temperature control module will not frequently start and stop in the second working mode.

[0132] In an optional implementation, the difference between the third temperature and the fourth temperature is less than the difference between the first temperature and the second temperature, and the difference between the third temperature and the fourth temperature is greater than or equal to a temperature difference threshold.

[0133] Understandably, the difference between the third and fourth temperatures is smaller than the difference between the first and second temperatures. This means that, compared to the first operating mode, the temperature control module requires a shorter cooling time from the start to the stop of cooling in the second operating mode, thereby reducing the energy consumption of the temperature control module. Furthermore, to avoid the problem of frequent start-stop cycles of the temperature control module when the difference between the third and fourth temperatures is very small, in this embodiment, the difference between the third and fourth temperatures is also greater than or equal to the temperature threshold.

[0134] In an optional implementation, the method further includes: when the duration of the temperature control module operating in the second working mode is greater than or equal to the third duration, controlling the temperature control module to switch from the second working mode to the first working mode; the third duration is greater than the first duration.

[0135] Understandably, when the temperature control module is operating in the second working mode, the temperature inside the cabinet may gradually rise. To avoid overheating and improve the cooling effect of the temperature control module, the outdoor communication cabinet can control the temperature control module to switch from the second working mode back to the first working mode. Furthermore, after the temperature control module switches to the first working mode, the outdoor communication cabinet can continuously monitor whether the temperature control module is frequently starting and stopping, thereby determining whether it is necessary to switch the temperature control module back to the second working mode. The implementation principle is simple.

[0136] In an optional implementation, the method further includes: when the temperature control module is operating in the second working mode, controlling the temperature control module to perform multiple cooling operations within a fourth duration; when the average duration of each cooling operation within the fourth duration is greater than or equal to a fifth duration, controlling the temperature control module to switch from the second working mode to the first working mode; the fourth duration is greater than or equal to the first duration, and the fifth duration is greater than the second duration.

[0137] Understandably, when the temperature control module is operating in the second working mode, the temperature inside the cabinet may gradually rise. To prevent overheating and improve the cooling effect of the temperature control module, the outdoor communication cabinet can switch the temperature control module from the second working mode to the first working mode. In this embodiment, when the average cooling time of each cooling cycle within the fourth time period is greater than or equal to the fifth time period, indicating a relatively long average cooling time, the outdoor communication cabinet can control the temperature control module to switch to the first working mode, ensuring high reliability.

[0138] In one alternative implementation, the temperature control module includes a compressor, and the cooling time of the temperature control module is equal to the operating time of the compressor.

[0139] It is understandable that the compressor starts running simultaneously when the temperature control module begins cooling, and stops running simultaneously when the temperature control module stops cooling. Therefore, outdoor communication cabinets can accurately use the compressor's running time as the cooling time of the temperature control module.

[0140] In an optional implementation, the temperature control module includes a compressor; when the temperature control module is operating in a first working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a second temperature and less than a first temperature; when the temperature control module is operating in a second working mode, the compressor speed remains unchanged when the temperature inside the cabinet is greater than or equal to a fourth temperature and less than a third temperature.

[0141] Understandably, when the internal temperature of the cabinet is greater than or equal to the second temperature and less than the first temperature, or when the internal temperature of the cabinet is greater than or equal to the fourth temperature and less than the third temperature, the internal temperature of the cabinet is within a relatively suitable range. At this time, keeping the compressor speed of the outdoor communication cabinet constant can improve the stability of the temperature control module's operation.

[0142] In an alternative implementation, the compressor speed is equal to the lower speed limit threshold while the compressor speed remains constant.

[0143] Understandably, when the internal temperature of the cabinet is greater than or equal to the second temperature and less than the first temperature, or when the internal temperature of the cabinet is greater than or equal to the fourth temperature and less than the third temperature, it means that the current cooling capacity of the temperature control module is sufficient to reduce the internal temperature of the cabinet. At this time, the outdoor communication cabinet controls the compressor to operate at the lower speed limit threshold, which can effectively reduce the energy consumption of the temperature control module.

[0144] In one alternative implementation, the first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, the third temperature is 37 degrees Celsius, the first duration is equal to 1 day, and the second duration is equal to 3 minutes.

[0145] It is understandable that the specific values ​​of the first, second, and third temperatures can be flexibly adjusted according to actual needs to suit different application scenarios.

[0146] In an alternative implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the difference between the third temperature and the fourth temperature is equal to 4 degrees Celsius.

[0147] Understandably, the specific values ​​of the difference between the first and second temperatures, and the difference between the third and fourth temperatures, can be flexibly adjusted according to actual needs, making them suitable for different application scenarios.

[0148] In an optional implementation, the difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the temperature difference threshold is equal to 1 degree Celsius.

[0149] Understandably, the specific value of the temperature difference threshold can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0150] In an alternative implementation, the third duration is equal to 7 days or 30 days.

[0151] Understandably, the specific value of the third duration can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0152] In an alternative implementation, the fourth duration is equal to 1 day, and the fifth duration is equal to 30 minutes.

[0153] Understandably, the specific value of the fifth duration can be flexibly adjusted according to actual needs, making it suitable for different application scenarios.

[0154] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the above claims.

Claims

1. An outdoor communication cabinet, characterized in that, The outdoor communication cabinet includes a cabinet body, a power module, a controller, and a temperature control module. The power module, controller, and temperature control module are integrated inside the cabinet body. The power module supplies power to the temperature control module and the communication device. The temperature control module regulates the temperature inside the cabinet body. The controller is used for: When the temperature control module is operating in the first working mode, the temperature control module is controlled to cool multiple times within a first time period; When the average cooling duration of the temperature control module within the first time period is less than the second time period, the temperature control module is controlled to switch from the first working module to the second working mode. Specifically, when the temperature control module is operating in the first working mode, it starts cooling when the temperature inside the cabinet is greater than or equal to a first temperature, and stops cooling when the temperature inside the cabinet is less than a second temperature; when the temperature control module is operating in the second working mode, it starts cooling when the temperature inside the cabinet is greater than or equal to a third temperature, and stops cooling when the temperature inside the cabinet is less than a fourth temperature; wherein the first temperature is greater than the second temperature, the third temperature is greater than the fourth temperature, and the third temperature is greater than the first temperature.

2. The outdoor communication cabinet according to claim 1, characterized in that, The difference between the third temperature and the fourth temperature is greater than or equal to the difference between the first temperature and the second temperature.

3. The outdoor communication cabinet according to claim 1, characterized in that, The difference between the third temperature and the fourth temperature is less than the difference between the first temperature and the second temperature, and the difference between the third temperature and the fourth temperature is greater than or equal to the temperature difference threshold.

4. The outdoor communication cabinet according to any one of claims 1 to 3, characterized in that, The controller is also used for: If the duration of the temperature control module operating in the second working mode is greater than or equal to the third duration, the temperature control module is controlled to switch from the second working mode to the first working mode; the third duration is greater than the first duration.

5. The outdoor communication cabinet according to any one of claims 1 to 3, characterized in that, The controller is also used for: When the temperature control module is operating in the second working mode, the temperature control module is controlled to perform cooling multiple times within a fourth time period; When the average duration of each cooling cycle within the fourth duration is greater than or equal to the fifth duration, the temperature control module switches from the second working module to the first working mode; the fourth duration is greater than or equal to the first duration, and the fifth duration is greater than the second duration.

6. The outdoor communication cabinet according to any one of claims 1 to 5, characterized in that, The temperature control module includes a compressor, and the cooling time of the temperature control module is equal to the running time of the compressor.

7. The outdoor communication cabinet according to any one of claims 1 to 6, characterized in that, The temperature control module includes a compressor; When the temperature control module is operating in the first working mode, if the temperature inside the cabinet is greater than or equal to the second temperature and the temperature inside the cabinet is less than the first temperature, the speed of the compressor remains unchanged. When the temperature control module is operating in the second working mode, if the temperature inside the cabinet is greater than or equal to the fourth temperature and less than the third temperature, the speed of the compressor remains unchanged.

8. The outdoor communication cabinet according to claim 7, characterized in that, When the compressor speed remains constant, the compressor speed is equal to the lower speed limit threshold.

9. The outdoor communication cabinet according to claim 1, characterized in that, The first temperature is 26 degrees Celsius, the second temperature is 24 degrees Celsius, the third temperature is 37 degrees Celsius, the first duration is equal to 1 day, and the second duration is equal to 3 minutes.

10. The outdoor communication cabinet according to claim 2, characterized in that, The difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the difference between the third temperature and the fourth temperature is equal to 4 degrees Celsius.

11. The outdoor communication cabinet according to claim 3, characterized in that, The difference between the first temperature and the second temperature is equal to 2 degrees Celsius, and the temperature difference threshold is equal to 1 degree Celsius.

12. The outdoor communication cabinet according to claim 4, characterized in that, The third duration is equal to 7 days or 30 days.

13. The outdoor communication cabinet according to claim 5, characterized in that, The fourth duration is equal to 1 day, and the fifth duration is equal to 30 minutes.

14. An outdoor communication device, characterized in that, The outdoor communication equipment includes an outdoor communication cabinet and a communication device. The outdoor communication cabinet includes a cabinet body, a power module, a controller, and a temperature control module. The power module, the temperature control module, and the communication device are integrated inside the cabinet body. The power module supplies power to the temperature control module and the communication device. The temperature control module regulates the temperature inside the cabinet body. The controller is used for: When the temperature control module is operating in the first working mode, the temperature control module is controlled to cool multiple times within a first time period; When the average cooling duration of the temperature control module within the first time period is less than the second time period, the temperature control module is controlled to switch from the first working module to the second working mode. Specifically, when the temperature control module is operating in the first working mode, it starts cooling when the temperature inside the cabinet is greater than or equal to a first temperature, and stops cooling when the temperature inside the cabinet is less than a second temperature; when the temperature control module is operating in the second working mode, it starts cooling when the temperature inside the cabinet is greater than or equal to a third temperature, and stops cooling when the temperature inside the cabinet is less than a fourth temperature; wherein the first temperature is greater than the second temperature, the third temperature is greater than the fourth temperature, and the third temperature is greater than the first temperature.

15. A control method for an outdoor communication cabinet, applied to the outdoor communication cabinet, the outdoor communication cabinet comprising a cabinet body, a power module, a controller, and a temperature control module, wherein the power module, the controller, and the temperature control module are integrated inside the cabinet body, the power module supplies power to the temperature control module and the communication device, and the temperature control module regulates the temperature inside the cabinet body; characterized in that... The method includes: When the temperature control module is operating in the first working mode, the temperature control module is controlled to cool multiple times within a first time period; When the average cooling duration of the temperature control module within the first time period is less than the second time period, the temperature control module is controlled to switch from the first working module to the second working mode. Specifically, when the temperature control module is operating in the first working mode, it starts cooling when the temperature inside the cabinet is greater than or equal to a first temperature, and stops cooling when the temperature inside the cabinet is less than a second temperature; when the temperature control module is operating in the second working mode, it starts cooling when the temperature inside the cabinet is greater than or equal to a third temperature, and stops cooling when the temperature inside the cabinet is less than a fourth temperature; wherein the first temperature is greater than the second temperature, the third temperature is greater than the fourth temperature, and the third temperature is greater than the first temperature.