Storage cabinet and temperature control method thereof

Abstract

The invention discloses a storage cabinet and a temperature control method of the storage cabinet, a fan system is arranged in the storage cabinet, and the storage cabinet comprises two or more fans; when the preset temperature adjusting condition is met, whether the heat exchange condition for heat exchange with the external environment is met or not is judged according to the environment temperature and the chamber temperature; the temperature adjusting condition is that the chamber temperature is different from a preset chamber set temperature; when the heat exchange condition is met, at least two fans in the fan system are controlled to start and operate according to different rotating directions, so that an internal and external circulation air path is formed; and when the heat exchange condition is not met, at least one fan in the fan system is controlled to start and operate according to the target rotating direction, so that internal circulating air supply is formed. According to the invention, the influence of the air path in the compartment on the heat exchange efficiency is considered during heat exchange with the environment, so that the utilization rate of the environment temperature is effectively improved, the temperature change rate is ensured, and the effects of saving energy and reducing consumption are achieved.

Description

Technical Field

[0001] This invention relates to the field of locker technology, and more particularly to a locker and a method for controlling the temperature of the locker. Background Technology

[0002] As people's living standards improve, different items will be stored in different lockers, and the storage conditions of the lockers will be controlled to meet the storage needs of the items, such as wine cabinets, medicine cabinets, and refrigerators. Different items have different requirements for their own storage environment, such as temperature and humidity. For items that require specific storage temperatures, the temperature inside the locker cannot be too high or too low, otherwise it may affect the quality of the stored items.

[0003] Most current lockers control the temperature of their compartments by using refrigeration and / or heating systems. However, the inventors have discovered that existing technologies have at least the following problems: conventional temperature control methods for lockers either rely too heavily on the operation of refrigeration and heating systems, which is not conducive to energy conservation and consumption reduction, or, under certain conditions, only use heat exchange with the ambient temperature for temperature control, resulting in a slow rate of temperature change and severely affecting the temperature control effect. Summary of the Invention

[0004] The purpose of this invention is to provide a storage cabinet and a method for controlling the temperature of the storage cabinet. When exchanging heat with the environment, the method takes into account the influence of the airflow in the room on the heat exchange efficiency, effectively improves the utilization rate of the ambient temperature, ensures the rate of temperature change, and achieves the effect of energy saving and consumption reduction.

[0005] To achieve the above objectives, embodiments of the present invention provide a storage cabinet, comprising:

[0006] The cabinet has internal storage compartments.

[0007] A fan system, located inside the cabinet, is used to supply air to the storage room; the fan system includes two or more fans;

[0008] A compartment temperature sensor is installed inside the storage room to collect the current compartment temperature;

[0009] An ambient temperature sensor is used to collect the current ambient temperature.

[0010] Controller, used for:

[0011] When the preset temperature control conditions are met, it is determined whether the heat exchange conditions for heat exchange with the external environment are met based on the ambient temperature and the room temperature; the temperature control conditions are that the room temperature is different from the preset room setting temperature.

[0012] When the heat exchange conditions are met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path;

[0013] When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the target direction to form an internal circulating air supply.

[0014] As an improvement to the above solution, the preset temperature control conditions include cooling conditions, wherein the cooling conditions are that the room temperature is greater than the room set temperature.

[0015] When the preset temperature control conditions are met, determining whether the preset heat exchange conditions are met based on the ambient temperature and the room temperature includes:

[0016] When the cooling condition is met, if the ambient temperature is lower than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

[0017] As an improvement to the above solution, when the cooling condition is met, and when the heat exchange condition is met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path, including:

[0018] When the heat exchange conditions are met, the fan located at the upper position in the fan system is controlled to start running in the first direction, and the fan located at the lower position is controlled to start running in the second direction.

[0019] When the heat exchange conditions are not met, controlling at least one fan in the fan system to start and operate according to the target rotation direction to form internal circulating air supply includes:

[0020] When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the second direction.

[0021] Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

[0022] As an improvement to the above solution, the fan system includes a first fan, a second fan, and a third fan; wherein the first fan is located at the top of the cabinet, the second fan is located at the back of the cabinet, and the third fan is located at the bottom of the cabinet;

[0023] The control system for starting the wind turbines located relatively above each other in a first direction and starting the wind turbines located relatively below each other in a second direction includes:

[0024] The first fan is controlled to start and operate in the first direction, and the second fan and the third fan are controlled to start and operate in the second direction;

[0025] The control of at least one fan in the fan system to start operation in a second direction includes:

[0026] The first fan is controlled to shut down or start operating in the second direction, and the second and third fans are started operating in the second direction.

[0027] As an improvement to the above solution, the storage cabinet also includes a refrigeration system, which is located inside the cabinet and is used to provide cooling for the storage room.

[0028] The controller is also used for:

[0029] When the cooling condition and the heat exchange condition are met, if the ambient temperature is greater than or equal to the room set temperature, the refrigeration system is controlled to start operation; if the ambient temperature is less than the room set temperature, the refrigeration system is controlled not to start operation.

[0030] When the cooling condition is met but the heat exchange condition is not met, the refrigeration system is controlled to start operation.

[0031] As an improvement to the above solution, the preset temperature control conditions include a temperature rise condition, wherein the temperature rise condition is that the room temperature is lower than the room set temperature;

[0032] When the preset temperature control conditions are met, determining whether the preset heat exchange conditions are met based on the ambient temperature and the room temperature includes:

[0033] When the heating condition is met, if the ambient temperature is greater than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

[0034] As an improvement to the above scheme, when the heating condition is met, when the heat exchange condition is met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path, including:

[0035] When the heat exchange conditions are met, the fan located at the upper position in the fan system is controlled to start running in the second direction, and the fan located at the lower position is controlled to start running in the first direction.

[0036] When the heat exchange conditions are not met, controlling at least one fan in the fan system to start and operate according to the target rotation direction to form internal circulating air supply includes:

[0037] When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the second direction.

[0038] Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

[0039] As an improvement to the above solution, the fan system includes a first fan, a second fan, and a third fan; wherein the first fan is located at the top of the cabinet, the second fan is located at the back of the cabinet, and the third fan is located at the bottom of the cabinet;

[0040] The control system for starting the wind turbines located relatively above in a second direction and starting the wind turbines located relatively below in a first direction includes:

[0041] The first and second fans are controlled to start and operate in the second direction, and the third fan is controlled to start and operate in the first direction;

[0042] The control of at least one fan in the fan system to start operation in a second direction includes:

[0043] The first and second fans are controlled to start and operate in the second direction, while the third fan is either turned off or started and operated in the second direction.

[0044] As an improvement to the above solution, the locker also includes a heating system located inside the locker to provide heat to the storage compartment;

[0045] The controller is also used for:

[0046] When the heating conditions and heat exchange conditions are met, if the ambient temperature is less than or equal to the set temperature of the room, the heating system is controlled to start operation; if the ambient temperature is greater than the set temperature of the room, the heating system is controlled not to start operation.

[0047] When the heating condition is met but the heat exchange condition is not met, the heating system is controlled to start operation.

[0048] This invention also provides a method for temperature control of a locker, the locker comprising:

[0049] The cabinet has internal storage compartments.

[0050] A fan system, located inside the cabinet, is used to supply air to the storage room; the fan system includes two or more fans;

[0051] A compartment temperature sensor is installed inside the storage room to collect the current compartment temperature;

[0052] An ambient temperature sensor is used to collect the current ambient temperature.

[0053] Controller, used for:

[0054] When the preset temperature control conditions are met, it is determined whether the heat exchange conditions for heat exchange with the external environment are met based on the ambient temperature and the room temperature; the temperature control conditions are that the room temperature is different from the preset room setting temperature.

[0055] When the heat exchange conditions are met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path;

[0056] When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the target direction to form an internal circulating air supply.

[0057] Compared with existing technologies, the storage cabinet and its temperature control method disclosed in this invention utilize heat exchange with the environment during the temperature control process, effectively improving the utilization rate of ambient temperature and achieving energy saving and consumption reduction. Furthermore, it considers the impact of the internal airflow on heat exchange efficiency, setting up a fan system with multiple fans for air supply. During heat exchange with the environment, the intake and exhaust fans are simultaneously activated, effectively improving heat exchange efficiency and increasing the rate of temperature change. When heat exchange with the environment is not possible, the fans circulate air within the room, making the temperature adjustment more uniform and improving the uniformity of the room temperature. Attached Figure Description

[0058] Figure 1 This is a first structural schematic diagram of a storage cabinet provided in an embodiment of the present invention;

[0059] Figure 2 This is a schematic diagram of the refrigeration system in an embodiment of the present invention;

[0060] Figure 3 This is a schematic diagram of the second structure of the storage cabinet in an embodiment of the present invention;

[0061] Figure 4 This is a schematic diagram of the third structure of the storage cabinet in an embodiment of the present invention;

[0062] Figure 5 This is a schematic diagram showing the connection between the controller and other functional components in an embodiment of the present invention;

[0063] Figure 6 This is a schematic diagram of the first working process of the controller in an embodiment of the present invention;

[0064] Figure 7 This is a schematic diagram of the second working process of the controller in an embodiment of the present invention;

[0065] Figure 8 This is a schematic diagram of the third working process of the controller in an embodiment of the present invention;

[0066] Figure 9 This is a schematic diagram of the fourth working process of the controller in an embodiment of the present invention;

[0067] Figure 10 This is a schematic flowchart of a temperature control method for a locker provided in an embodiment of the present invention. Detailed Implementation

[0068] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0070] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0071] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0072] See Figure 1 This is a first structural schematic diagram of a storage cabinet provided in an embodiment of the present invention. The embodiment of the present invention provides a storage cabinet 10, including a cabinet body, a storage compartment 11 inside the cabinet body, and a refrigeration system 12, a heating system 13, and a fan system 14 connected to the storage compartment 11. More preferably, the storage cabinet further includes a compartment temperature sensor 15 and an ambient temperature sensor 16.

[0073] It should be noted that the storage cabinet 10 can be used in a variety of scenarios to store different types of items, such as wine cabinets, medicine cabinets, merchandise cabinets or refrigerators, thereby providing a storage environment with appropriate conditions for different types of items.

[0074] Specifically, the storage room 11 is used to store items. The interior of the storage room 11 can be configured with several storage layers, several storage compartments, or other formats according to user needs, without affecting the beneficial effects of the present invention.

[0075] The refrigeration system 12 provides cooling capacity to the storage compartment 11 to lower the compartment temperature Tv and maintain it at a low temperature. The refrigeration system 12 can be a compressor refrigeration system, a semiconductor refrigeration system, or another refrigeration method. The output cooling capacity of the refrigeration system 12 can be adjusted according to actual needs. This adjustment is based on the system load demand and is determined by considering the ambient temperature, compartment temperature, and humidity levels, thereby controlling the temperature and humidity of the storage compartment to meet requirements. Specifically, when using compressor refrigeration, the output cooling capacity can be adjusted by changing the compressor's operating speed and / or frequency. When using semiconductor refrigeration, the output cooling capacity can be adjusted by changing the input voltage. Of course, other refrigeration methods can also be used, and the output cooling capacity can be adjusted according to actual conditions, which will not be elaborated upon here.

[0076] See Figure 2This is a schematic diagram of the refrigeration system in an embodiment of the present invention. Taking the use of a compressor for refrigeration as an example, the refrigeration system 12 includes a compressor 121, an evaporator 122, a dryer filter (not shown in the figure), a throttling component 123, a condenser 124, and a gas-liquid separator (not shown in the figure). The working process of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process. The compression process is as follows: when the refrigerator power cord is plugged in and there is a cooling demand in the refrigerator, the compressor 121 starts working. Low-temperature, low-pressure refrigerant is drawn into the compressor 121 and compressed into high-temperature, high-pressure superheated gas in the cylinder of the compressor 121 before being discharged into the condenser 124. The condensation process is as follows: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser 124, and the temperature continuously decreases, gradually cooling into room-temperature, high-pressure saturated vapor, and further cooling into saturated liquid. The temperature no longer decreases; this temperature is called the condensation temperature. The pressure of the refrigerant remains almost constant throughout the condensation process. The throttling process is as follows: After condensation, the saturated liquid refrigerant flows into the throttling component 123, such as a capillary tube, after the moisture and impurities are removed by the dryer filter. The refrigerant is throttled and depressurized through the capillary tube, and becomes a room temperature, low pressure wet vapor. The evaporation process is as follows: the room temperature, low pressure wet vapor begins to absorb heat and vaporize in the evaporator 122, which not only lowers the temperature of the evaporator 122 and its surroundings, but also turns the refrigerant into a low temperature, low pressure gas. The refrigerant coming out of the evaporator 122 passes through the gas-liquid separator and returns to the compressor 121. The above process is repeated to transfer the heat inside the refrigerator to the outside air, thus achieving the purpose of refrigeration.

[0077] Of course, the specific forms of refrigeration systems and their refrigeration methods involved in the above scenarios are only examples. In actual applications, they can be set according to the actual situation, and no specific limitations are made here.

[0078] The heating system 13 is used to provide heat to the storage room 11 and to regulate the room temperature Tv. It can be started or stopped according to control requirements.

[0079] Optionally, the heating system 13 can be configured as a heating wire and attached to the inner surface of the storage compartment 11. Of course, other heating methods can also be used or combined, without affecting the beneficial effects achieved by the present invention.

[0080] The fan system 14 is used to supply air to the storage compartment 11 to achieve heat dissipation or cooling. Preferably, the fan system 14 includes two or more fans. Optionally, the fans in the fan system 14 have two operating states: forward rotation and reverse rotation. When the fan is in the first direction, set to reverse rotation, the fan supplies air to the outside of the storage compartment 11, that is, it draws air from the inside of the storage compartment 11 and blows air to the outside. When the fan is in the second direction, set to forward rotation, the fan supplies air to the inside of the storage compartment 11, that is, it draws air from the outside of the storage compartment 11 and blows air to the inside.

[0081] As a preferred embodiment, see [link to previous document]. Figure 3 This is a schematic diagram of the second structure of the storage cabinet in an embodiment of the present invention. The fan system 14 includes a first fan 141, a second fan 142 and a third fan 143; wherein, the first fan 141 is located at the top of the cabinet, the second fan 142 is located at the back of the cabinet, and the third fan 143 is located at the bottom of the cabinet.

[0082] A compartment temperature sensor 15 is disposed within the storage compartment 11, and is used to collect the current compartment temperature Tv inside the storage compartment 11. Preferably, the compartment temperature sensor 15 includes at least two sub-temperature sensors, and each of the sub-temperature sensors is disposed at a different location inside the storage compartment 11 to collect temperature values ​​at different locations. The average of the temperature values ​​collected by the sub-temperature sensors is taken as the current compartment temperature Tv inside the storage compartment 11.

[0083] As a preferred embodiment, see [link to previous document]. Figure 4 This is a schematic diagram of the third structure of the storage cabinet in an embodiment of the present invention. The compartment temperature sensor 15 includes a first sub-temperature sensor 151, a second sub-temperature sensor 152 and a third sub-temperature sensor 153, which are respectively located at the upper, middle and lower parts of the side of the cabinet.

[0084] An ambient temperature sensor 16 is located outside the cabinet and is used to collect the current ambient temperature Te of the environment where the storage cabinet is located.

[0085] Further, see Figure 5 This is a schematic diagram of the connection between the controller and other functional components in an embodiment of the present invention. The storage cabinet 10 also includes a controller 17, which is connected to functional components such as the refrigeration system 12, heating system 13, fan system 14, room temperature sensor 15, and ambient temperature sensor 16 to collect information, perform calculation and analysis, and issue control commands, thereby controlling the operating parameters of the refrigeration system 12 and the starting, running, or stopping status of the heating system 13 and fan 14.

[0086] Specifically, see Figure 6This is a schematic diagram of the first working process of the controller in an embodiment of the present invention. The controller 17 is specifically used to execute steps S11 to S13:

[0087] S11. When the preset temperature control conditions are met, determine whether the heat exchange conditions for heat exchange with the external environment are met based on the ambient temperature and the room temperature; the temperature control conditions are that the room temperature is different from the preset room setting temperature.

[0088] S12. When the heat exchange conditions are met, control at least two fans in the fan system to start running in different directions to form an internal and external circulation air path;

[0089] S13. When the heat exchange conditions are not met, control at least one fan in the fan system to start running in the target direction to form an internal circulating air supply.

[0090] In this embodiment of the invention, a pre-set temperature control condition is used to characterize situations where the temperature of the storage compartment 11 needs to be adjusted. A preset temperature Ts is set according to the user's needs. The preset temperature Ts represents a desired temperature for the storage compartment 11. The preset temperature Ts can be a single temperature value or a temperature range, without specific limitations. When the storage compartment temperature Tv differs from the preset temperature Ts, or does not fall within the preset temperature range, it is determined that the temperature control condition is met. The purpose of temperature control is to bring the storage compartment temperature Tv closer to the preset temperature Ts or within the preset temperature range.

[0091] Optionally, the locker also includes a display panel, through which the user can input the desired temperature setting to adjust the room temperature Ts. Of course, the display panel can also be used to display relevant operating parameters and alarm information, etc., without any specific limitation.

[0092] It should be noted that when the temperature regulation conditions are met, the corresponding refrigeration system 12 or heating system 13 is started and operated according to the temperature regulation requirements. Specific control methods can refer to existing technical solutions. This embodiment of the invention provides supplementary control during the temperature regulation process, improving the temperature regulation effect by controlling the operation of the fan system 14.

[0093] It should be noted that storage cabinets typically have a standard temperature range, which users can change to set the compartment temperature. Taking a wine cabinet as an example, the standard temperature range is 5–20°C. When the ambient temperature Te > 20°C, the ambient temperature will inevitably be higher than the compartment's set temperature. The compressor will start and cool normally until the corresponding temperature is reached, at which point it will stop. Furthermore, the lowest suitable climate type for conventional wine cabinets is SN, meaning the minimum suitable ambient temperature is 10°C. Therefore, considering the possibility of harsher environmental scenarios in actual use, this proposal suggests a low-temperature operation control method. The applicable low-temperature ambient temperature range must meet the standard temperature range, for example, 5°C ≤ Te ≤ 20°C. The temperature control methods for storage compartments with ambient temperatures within this standard temperature range are optimized.

[0094] Specifically, when the temperature adjustment conditions are met, based on the relationship between the ambient temperature Te and the compartment temperature Tv, it is determined whether the heat exchange conditions for heat exchange with the external environment are met. When the heat exchange conditions are met, it indicates that the current compartment temperature Tv can be adjusted to approach the set compartment temperature Ts by exchanging heat with the external environment. At this time, at least two fans in the fan system are controlled to start running in different directions. For example, one fan rotates forward to supply air into the storage compartment, and the other fan rotates in the opposite direction to supply air to the outside of the storage compartment, thereby forming an internal and external circulation air path, increasing the rate of temperature change inside the storage compartment 11, achieving a rapid temperature adjustment effect, and improving the uniformity of the temperature inside the storage compartment.

[0095] When the heat exchange conditions are not met, it indicates that the current room temperature Tv cannot be adjusted by heat exchange with the external environment. In this case, at least one fan in the fan system is started. If there are two or more fans, they must be started in the same direction. For example, at least one fan is turned to blow air into the storage room to form an internal circulation air supply. According to the temperature control requirements, it cooperates with the operation of the refrigeration system 12 or the heating system 13 to improve the uniformity of the room temperature of the storage room 11 and achieve a rapid temperature control effect.

[0096] By employing the technical means of this invention, the temperature control process of the storage cabinet utilizes heat exchange with the environment, effectively improving the utilization rate of ambient temperature and achieving energy saving and consumption reduction. Furthermore, it considers the impact of the airflow within the cabinet on heat exchange efficiency, setting up a fan system containing multiple fans for air supply. During heat exchange with the environment, the intake and exhaust fans are simultaneously activated, effectively improving heat exchange efficiency and increasing the rate of temperature change. When heat exchange with the environment is not possible, the fans circulate air within the cabinet, making the temperature adjustment more uniform and improving the uniformity of the cabinet temperature.

[0097] As a preferred embodiment, the present invention further implements the above embodiments, specifically optimizing the cooling control process of the storage room.

[0098] See Figure 7 This is a schematic diagram of the second working process of the controller in an embodiment of the present invention. The preset temperature control conditions include cooling conditions, wherein the cooling conditions are that the room temperature is greater than the set room temperature. Then, when the preset temperature control conditions are met, determining whether the preset heat exchange conditions are met based on the ambient temperature and the room temperature includes:

[0099] When the cooling condition is met, if the ambient temperature is lower than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

[0100] Specifically, when Tv > Ts, it indicates that the temperature of storage room 11 is too high and needs to be cooled. If Te < Tv, it indicates that the ambient temperature is low and the room temperature can be lowered by dissipating heat to the ambient temperature, thus satisfying the heat exchange condition. If Te ≥ Tv, it indicates that the ambient temperature is also high and the room temperature cannot be lowered by dissipating heat to the ambient temperature, thus not satisfying the heat exchange condition.

[0101] Preferably, when the cooling condition is met, step S12, that is, when the heat exchange condition is met, controlling at least two fans in the fan system to start running in different directions to form an internal and external circulation air path, includes: when the heat exchange condition is met, controlling the fan located at the upper part of the fan system to start running in a first direction, and the fan located at the lower part to start running in a second direction.

[0102] Step S13, namely, when the heat exchange conditions are not met, controlling at least one fan in the fan system to start running in the target direction to form internal circulating air supply, includes: when the heat exchange conditions are not met, controlling at least one fan in the fan system to start running in the second direction.

[0103] Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

[0104] Specifically, under the cooling condition that Tv > Ts, if Te < Tv, the heat exchange condition is satisfied, indicating that the temperature Tv inside the storage room 11 is hot air, and the ambient temperature Te outside is cold air. Since cold air has a higher density and tends to settle at the bottom, while air has a lower density and tends to float at the top, it is necessary to control the fan in the fan system 14 to reverse its direction to send air to the outside of the storage room, and control the fan in the fan system 14 to rotate forward to send air into the storage room. This will expel the hot air inside the storage room 11 and draw in the cold air from the outside, forming an internal and external circulation airflow path to achieve a rapid cooling effect. If Te ≥ Tv, the heat exchange condition is not satisfied, then at least one fan in the fan system 14 is controlled to rotate forward to send air into the storage room, forming an internal circulation airflow to improve the uniformity of the room temperature.

[0105] As a preferred embodiment, taking the fan system 14 including a first fan 141, a second fan 142 and a third fan 143 as an example, controlling the fan located at the upper part of the fan system to start running in a first direction and the fan located at the lower part to start running in a second direction includes: controlling the first fan to start running in the first direction, and the second fan and the third fan to start running in the second direction.

[0106] The control of at least one fan in the fan system to start operation in the second direction includes: controlling the first fan to shut down or start operation in the second direction, and the second fan and the third fan to start operation in the second direction.

[0107] That is, when Tv > Ts and Te < Tv, the first fan 141 at the top is controlled to run in reverse to supply air to the outside of the storage room, while the second fan 142 at the back and the third fan 143 at the bottom run in forward to supply air to the inside of the storage room. When Tv > Ts and Te ≥ Tv, the first fan 141 at the top is controlled to either turn off or run in forward, while the second fan 142 at the back and the third fan 143 at the bottom run in forward to supply air to the inside of the storage room.

[0108] Preferably, the embodiments of the present invention further optimize the operation control means of the refrigeration system during the cooling process, and the controller is further used for:

[0109] When the cooling condition and the heat exchange condition are met, if the ambient temperature is greater than or equal to the room set temperature, the refrigeration system is controlled to start operation; if the ambient temperature is less than the room set temperature, the refrigeration system is controlled not to start operation.

[0110] When the cooling condition is met but the heat exchange condition is not met, the refrigeration system is controlled to start operation.

[0111] Specifically, in the first case, when the cooling condition Tv > Ts is met, if Te < Tv, the heat exchange condition is met, and Te ≥ Ts is also met, that is, Tv > Te ≥ Ts. In this case, relying solely on natural heat dissipation to the ambient temperature Te for cooling is too slow. The refrigeration system needs to be started to make the room temperature Tv reach the set room temperature Ts more quickly. Therefore, the refrigeration system 12 is started, the compressor 121 is started, the evaporator 122 performs cooling, and the cooling capacity is delivered to the storage room 11, in conjunction with the control of the upper fan. The system reverses its operation, sending air to the outside of the storage room while the lower fan rotates forward, sending air into the storage room. This process expels hot air from inside the storage room 11 and draws in cold air from the outside, achieving a rapid cooling effect. This continues until Te ≥ Tv > Ts, which still meets the cooling condition but not the heat exchange condition. At this point, the refrigeration system 12 continues to operate, and the fan system 14 is adjusted so that at least one fan rotates forward to send air into the storage room, forming an internal circulation air supply. This continues until Tv = Ts, at which point the refrigeration system 12 and the fan system 14 stop operating.

[0112] In the second case, when the cooling condition Tv > Ts is met, if Te < Tv, the heat exchange condition is met, and Te < Ts is also met, that is, Tv > Ts > Te. At this time, the ambient temperature is very low relative to the room temperature, and cooling can be achieved by naturally dissipating heat to the ambient temperature Te. Therefore, the refrigeration system 12 is not started, and the upper fan is controlled to run in reverse to send air to the outside of the storage room, while the lower fan runs in the forward direction to send air into the storage room, expelling the hot air inside the storage room 11 and drawing in the cold air from the outside, achieving a rapid cooling effect until Tv = Ts is met, at which point the fan system 14 stops running.

[0113] In the third case, when the cooling condition Tv>Ts is met, if Te≥Tv, the heat exchange condition is not met, that is, Te≥Tv>Ts. At this time, the refrigeration system 12 starts to run, and controls at least one fan to turn towards the interior of the storage room to supply air, forming an internal circulation air supply, until Tv=Ts is met, and the refrigeration system 12 and the fan system 14 stop running.

[0114] As a preferred embodiment, the present invention further implements the above embodiments, specifically optimizing the temperature control process of the storage room.

[0115] See Figure 8This is a schematic diagram of the third working process of the controller in this embodiment of the invention. The preset temperature control conditions include a temperature rise condition, wherein the temperature rise condition is that the temperature of the compartment is less than the set temperature of the compartment; then, when the preset temperature control conditions are met, determining whether the preset heat exchange conditions are met based on the ambient temperature and the compartment temperature includes:

[0116] When the heating condition is met, if the ambient temperature is greater than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

[0117] Specifically, when Tv < Ts, it indicates that the temperature of storage room 11 is too low and needs to be raised. If Te > Tv, it indicates that the ambient temperature is high and the room temperature can be compensated by the ambient temperature to achieve the heating effect, and it is determined that the heat exchange condition is met. If Te ≤ Tv, it indicates that the ambient temperature is also low and the room temperature cannot be compensated by the ambient temperature, and it is determined that the heat exchange condition is not met.

[0118] Preferably, when the heating condition is met, step S12, that is, when the heat exchange condition is met, controlling at least two fans in the fan system to start running in different directions to form an internal and external circulation air path, includes: when the heat exchange condition is met, controlling the fan located at the upper part of the fan system to start running in a second direction, and the fan located at the lower part to start running in a first direction.

[0119] Step S13, namely, when the heat exchange conditions are not met, controlling at least one fan in the fan system to start running in the target direction to form internal circulating air supply, includes: when the heat exchange conditions are not met, controlling at least one fan in the fan system to start running in the second direction.

[0120] Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

[0121] Specifically, under the condition that Tv < Ts, if Te > Tv, the heat exchange condition is satisfied, indicating that the temperature Tv inside the storage room 11 is cold air and the ambient temperature Te outside is hot air. In this case, the fan in the fan system 14 located at the top should rotate forward to supply air into the storage room, while the fan located at the bottom should rotate in reverse to supply air to the outside of the storage room. This will expel the cold air deposited at the bottom inside the storage room 11 and draw in the hot air from the outside, forming an internal and external circulation airflow path to achieve rapid heating. If Te ≤ Tv, the heat exchange condition is not satisfied, then at least one fan in the fan system 14 should rotate forward to supply air into the storage room, forming an internal circulation airflow to improve the uniformity of the room temperature.

[0122] As a preferred embodiment, taking the fan system 14 including a first fan 141, a second fan 142 and a third fan 143 as an example, controlling the fan located at the upper part of the fan system to start running in a second direction and the fan located at the lower part to start running in a first direction includes: controlling the first fan and the second fan to start running in the second direction and the third fan to start running in the first direction.

[0123] The control of at least one fan in the fan system to start operation in the second direction includes: controlling the first fan and the second fan to start operation in the second direction, and the third fan to be turned off or started operation in the second direction.

[0124] That is, when Tv < Ts and Te > Tv, the first fan 141 at the top and the second fan 142 at the back are controlled to rotate forward to supply air into the storage room, while the third fan 143 at the bottom rotates in reverse to supply air to the outside of the storage room. When Tv < Ts and Te ≤ Tv, the first fan 141 at the top and the second fan 142 at the back are controlled to rotate forward, while the third fan 143 at the bottom is either turned off or rotates forward to supply air into the storage room.

[0125] Preferably, the present invention further optimizes the operation control method of the heating system during the cooling process, and the controller is further used for:

[0126] When the heating conditions and heat exchange conditions are met, if the ambient temperature is less than or equal to the set temperature of the room, the heating system is controlled to start operation; if the ambient temperature is greater than the set temperature of the room, the heating system is controlled not to start operation.

[0127] When the heating condition is met but the heat exchange condition is not met, the heating system is controlled to start operation.

[0128] Specifically, in the first case, when the heating condition Tv < Ts is met, if Te > Tv, the heat exchange condition is met, and Te ≤ Ts is also met, that is, Tv < Te ≤ Ts is met. At this time, relying solely on the ambient temperature Te for heat compensation to raise the temperature is too slow. The heating system 13 needs to be started to make the room temperature Tv reach the room set temperature Ts more quickly. Therefore, the heating system 13 is controlled to start running, delivering heat to the storage room 11, and cooperating with the control of the upper fan to run forward to send air into the storage room, and the lower fan to run in reverse to send air into the outside of the storage room, expelling the cold air inside the storage room 11 and drawing in the hot air from the outside, achieving the effect of rapid heating. Until Te ≤ Tv < Ts, the heating condition is still met, but the heat exchange condition is not met. At this time, the heating system 13 continues to run, and the fan system 14 is adjusted so that at least one fan runs forward to send air into the storage room, forming an internal circulation air supply, until Tv = Ts is met, and the heating system 13 and the fan system 14 stop running.

[0129] In the second case, when the heating condition Tv < Ts is met, if Te > Tv, the heat exchange condition is met, and Te > Ts is also met, that is, Tv < Ts < Te. At this time, the ambient temperature is very high relative to the room temperature, and the temperature can be raised by relying solely on the ambient temperature Te for heat compensation. Therefore, the heating system 13 is not started, and the upper fan is controlled to run in the forward direction to send air into the storage room, while the lower fan runs in the reverse direction to send air into the outside of the storage room, expelling the cold air inside the storage room 11 and drawing in the hot air from the outside to achieve a rapid heating effect until Tv = Ts is met, at which point the fan system 14 stops running.

[0130] In the third case, when the heating condition Tv < Ts is met, if Te ≤ Tv, the heat exchange condition is not met, that is, Te ≤ Tv < Ts. At this time, the heating system 13 starts to run and controls at least one fan to turn towards the interior of the storage room to supply air, forming an internal circulation air supply until Tv = Ts is met, at which point the heating system 13 and the fan system 14 stop running.

[0131] See Figure 9 This is a schematic diagram of the fourth working process of the controller in this embodiment of the invention. This embodiment of the invention explains the cooling or heating process of the storage cabinet under the most preferred implementation. Taking the fan system 14, which includes a first fan 141, a second fan 142, and a third fan 143, as an example, this embodiment of the invention calculates the difference between the set temperature of the room and the ambient temperature: △T1=Ts-Te, the difference between the set temperature of the room and the room temperature: △T2=Ts–Tv, and the difference between the room temperature and the ambient temperature: △T3=Tv–Te.

[0132] For the cooling control process, that is, satisfying ΔT2 < 0:

[0133] When ΔT1≤0 and ΔT3>0, the heat inside the storage room needs to be expelled. The compressor 121 is started, and the evaporator 122 cools. Since the cold air is denser, it settles at the bottom. Therefore, the second fan 142 at the back and the third fan 143 at the bottom are controlled to blow air into the storage room. The first fan 141 at the top draws air from the room and blows it out, forming an air path to quickly expel the heat inside the storage room until ΔT3=0. At this time, the room temperature will soon become lower than the ambient temperature. If air is blown out of the storage room, it will waste the low temperature inside the storage room. Therefore, the first fan 141 at the top is stopped, while the second fan 142 at the back, the third fan 143 at the bottom, and the compressor 121 continue to work until ΔT2=0.

[0134] When △T1≤0 and △T3≤0, the compressor 121 is turned on, the evaporator 122 cools, and the second fan 142 at the back and the third fan 143 at the bottom blow air into the storage room until △T2=0.

[0135] When ΔT1≥0, the ambient temperature Te can be used to lower the room temperature Tv to the room set temperature Ts. The compressor 121 and heating system 13 are both turned off. The cold air density is relatively high, so the second fan 142 at the back and the third fan 143 at the bottom are controlled to blow air into the storage room. The first fan 141 at the top draws air from the room and blows it outward to form an air path, quickly expelling the heat from the room to the outside environment, so that the room temperature is lowered to the set temperature. When ΔT2=0, the fan system 14 stops running.

[0136] For the temperature control process, that is, satisfying ΔT2>0:

[0137] When ΔT1≥0 and ΔT3<0, the room temperature needs to be increased. The heating system 13 is activated. Since hot air has a lower density, the first fan 141 at the top and the second fan 142 at the back blow air into the storage room, while the third fan 143 at the bottom blows air out of the storage room, forming an airflow path to quickly bring the heat from outside the storage room into the storage room until ΔT3=0. At this time, the room temperature is about to become higher than the ambient temperature. If air is blown out of the room again, it will waste the heat inside the room. Therefore, the third fan 143 at the bottom stops rotating, while the first fan 141 at the top, the second fan 142 at the back, and the heating system 13 continue to work until ΔT2=0.

[0138] When △T1≥0 and △T3≥0, the heating system 13 starts, controlling the first fan 141 at the top and the second fan 142 at the back to blow air into the storage room until △T2=0.

[0139] When ΔT1≤0, the ambient temperature can be used to raise the room temperature to the set room temperature Ts. The compressor 121 and heating system 13 are both turned off. The hot air density is low, so the first fan 141 at the top and the second fan 142 at the back blow air into the storage room, and the third fan 143 at the bottom blows air out of the storage room, forming an air path to quickly bring ambient heat into the storage room, raising the room temperature to the set temperature. When ΔT2=0, the fan system 14 stops running.

[0140] By employing the technical means of this invention, the control methods for the cooling and heating processes of the storage cabinet are optimized. The relationship between ambient temperature, internal temperature, and set temperature is comprehensively considered. During temperature control, heat exchange with the environment is utilized, effectively improving the utilization rate of ambient temperature and achieving energy saving and consumption reduction. Furthermore, the impact of the internal airflow on heat exchange efficiency is considered, and a fan system with multiple fans is installed for air supply. During heat exchange with the environment, the intake and exhaust fans are simultaneously activated, effectively improving heat exchange efficiency and the rate of temperature change. When heat exchange with the environment is not possible, the fans circulate air within the cabinet, making the temperature adjustment more uniform and improving the uniformity of the cabinet temperature.

[0141] See Figure 10 This is a flowchart illustrating a temperature control method for a storage cabinet according to an embodiment of the present invention. The embodiment of the present invention provides a temperature control method for a storage cabinet, the storage cabinet comprising:

[0142] The cabinet has internal storage compartments.

[0143] A fan system, located inside the cabinet, is used to supply air to the storage room; the fan system includes two or more fans;

[0144] A compartment temperature sensor is installed inside the storage room to collect the current compartment temperature;

[0145] An ambient temperature sensor is used to collect the current ambient temperature.

[0146] The method includes steps S21 to S23:

[0147] S21. When the preset temperature control conditions are met, determine whether the heat exchange conditions for heat exchange with the external environment are met based on the ambient temperature and the room temperature; the temperature control conditions are that the room temperature is different from the preset room setting temperature.

[0148] S22. When the heat exchange conditions are met, control at least two fans in the fan system to start running in different directions to form an internal and external circulation air path;

[0149] S23. When the heat exchange conditions are not met, control at least one fan in the fan system to start running in the target direction to form an internal circulating air supply.

[0150] By employing the technical means of this invention, heat exchange with the environment is considered during the temperature control of the storage cabinet, effectively improving the utilization rate of ambient temperature and achieving energy saving and consumption reduction. Furthermore, the impact of the airflow within the cabinet on heat exchange efficiency is taken into account. During heat exchange with the environment, both the intake and exhaust fans are controlled to operate simultaneously, effectively improving heat exchange efficiency and increasing the rate of temperature change. When heat exchange with the environment is not possible, the fans are controlled to circulate air within the cabinet, making the temperature adjustment more uniform and improving the uniformity of the cabinet temperature.

[0151] In one implementation, the preset temperature control condition includes a cooling condition, wherein the cooling condition is that the room temperature is greater than the room set temperature; then, when the preset temperature control condition is met, determining whether the preset heat exchange condition is met based on the ambient temperature and the room temperature includes:

[0152] When the cooling condition is met, if the ambient temperature is lower than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

[0153] Preferably, when the cooling condition is met, the step of controlling at least two fans in the fan system to start running in different directions to form an internal and external circulation air path when the heat exchange condition is met includes: when the heat exchange condition is met, controlling the fan located at the upper position in the fan system to start running in a first direction, and the fan located at the lower position to start running in a second direction;

[0154] The step of controlling at least one fan in the fan system to start running in the target direction when the heat exchange conditions are not met to form internal circulating air supply includes: controlling at least one fan in the fan system to start running in the second direction when the heat exchange conditions are not met;

[0155] Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

[0156] Preferably, the fan system includes a first fan, a second fan, and a third fan; wherein the first fan is located at the top of the cabinet, the second fan is located at the back of the cabinet, and the third fan is located at the bottom of the cabinet;

[0157] The control of the wind turbine system to start the wind turbine located at the upper position according to the first direction and the wind turbine located at the lower position according to the second direction includes: controlling the first wind turbine to start the wind turbine according to the first direction, and the second wind turbine and the third wind turbine to start the wind turbine according to the second direction;

[0158] The control of at least one fan in the fan system to start operation in a second direction includes: controlling the first fan to shut down or start operation in a second direction, and the second fan and the third fan to start operation in the second direction.

[0159] Preferably, the storage cabinet further includes a refrigeration system disposed within the cabinet body for providing cooling to the storage compartment; the method further includes:

[0160] When the cooling condition and the heat exchange condition are met, if the ambient temperature is greater than or equal to the room set temperature, the refrigeration system is controlled to start operation; if the ambient temperature is less than the room set temperature, the refrigeration system is controlled not to start operation.

[0161] When the cooling condition is met but the heat exchange condition is not met, the refrigeration system is controlled not to start operation.

[0162] In another implementation, the preset temperature control condition includes a temperature rise condition, wherein the temperature rise condition is that the room temperature is lower than the room set temperature; then, when the preset temperature control condition is met, determining whether the preset heat exchange condition is met based on the ambient temperature and the room temperature includes:

[0163] When the heating condition is met, if the ambient temperature is greater than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

[0164] Preferably, when the heating condition is met, the step of controlling at least two fans in the fan system to start running in different directions to form an internal and external circulation air path when the heat exchange condition is met includes: when the heat exchange condition is met, controlling the fan located at the upper position in the fan system to start running in a second direction, and the fan located at the lower position to start running in a first direction;

[0165] The step of controlling at least one fan in the fan system to start running in the target direction when the heat exchange conditions are not met to form internal circulating air supply includes: controlling at least one fan in the fan system to start running in the second direction when the heat exchange conditions are not met;

[0166] Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

[0167] Preferably, the fan system includes a first fan, a second fan, and a third fan; wherein the first fan is located at the top of the cabinet, the second fan is located at the back of the cabinet, and the third fan is located at the bottom of the cabinet;

[0168] The control of the wind turbine system to start the wind turbine located at the upper position according to the second direction and the wind turbine located at the lower position according to the first direction includes: controlling the first wind turbine and the second wind turbine to start the wind turbine according to the second direction and the third wind turbine to start the wind turbine according to the first direction;

[0169] The control of at least one fan in the fan system to start operation in the second direction includes: controlling the first fan and the second fan to start operation in the second direction, and the third fan to be shut down or start operation in the second direction.

[0170] Preferably, the storage cabinet further includes a heating system disposed within the cabinet body for providing heat to the storage compartment; the method further includes:

[0171] When the heating conditions and heat exchange conditions are met, if the ambient temperature is less than or equal to the set temperature of the room, the heating system is controlled to start operation; if the ambient temperature is greater than the set temperature of the room, the heating system is controlled not to start operation.

[0172] When the heating condition is met but the heat exchange condition is not met, the heating system is controlled not to start operation.

[0173] It should be noted that the temperature control method for a locker provided in this embodiment of the invention has the same process steps as the controller of a locker in the above embodiment. The working principles and beneficial effects of the two are one-to-one, so they will not be described again.

[0174] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0175] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A storage cabinet, characterized in that, include: The cabinet has internal storage compartments. A fan system, located inside the cabinet, is used to supply air to the storage room; the fan system includes two or more fans; A compartment temperature sensor is installed inside the storage room to collect the current compartment temperature; An ambient temperature sensor is used to collect the current ambient temperature. Controller, used for: When the preset temperature control conditions are met, it is determined whether the heat exchange conditions for heat exchange with the external environment are met based on the ambient temperature and the room temperature; the temperature control conditions are that the room temperature is different from the preset room setting temperature. When the heat exchange conditions are met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path; When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the target direction to form an internal circulating air supply.

2. The locker as described in claim 1, characterized in that, The preset temperature control conditions include cooling conditions, wherein the cooling conditions are that the room temperature is greater than the room set temperature; When the preset temperature control conditions are met, determining whether the preset heat exchange conditions are met based on the ambient temperature and the room temperature includes: When the cooling condition is met, if the ambient temperature is lower than the room temperature, it is determined that the heat exchange condition is met. Otherwise, it is determined that the heat exchange conditions are not met.

3. The storage cabinet as described in claim 2, characterized in that, When the cooling condition is met, and when the heat exchange condition is met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path, including: When the heat exchange conditions are met, the fan located at the upper position in the fan system is controlled to start running in the first direction, and the fan located at the lower position is controlled to start running in the second direction. When the heat exchange conditions are not met, controlling at least one fan in the fan system to start and operate according to the target rotation direction to form internal circulating air supply includes: When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the second direction. Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

4. The locker as described in claim 3, characterized in that, The fan system includes a first fan, a second fan, and a third fan; wherein the first fan is located at the top of the cabinet, the second fan is located at the back of the cabinet, and the third fan is located at the bottom of the cabinet; The control system for starting the wind turbines located relatively above each other in a first direction and starting the wind turbines located relatively below each other in a second direction includes: The first fan is controlled to start and operate in the first direction, and the second fan and the third fan are controlled to start and operate in the second direction; The control of at least one fan in the fan system to start operation in a second direction includes: The first fan is controlled to shut down or start operating in the second direction, and the second and third fans are started operating in the second direction.

5. The locker as described in claim 2, characterized in that, The storage cabinet also includes a refrigeration system, which is located inside the cabinet and is used to provide cooling for the storage room; The controller is also used for: When the cooling condition and the heat exchange condition are met, if the ambient temperature is greater than or equal to the room set temperature, the refrigeration system is controlled to start operation; if the ambient temperature is less than the room set temperature, the refrigeration system is controlled not to start operation. When the cooling condition is met but the heat exchange condition is not met, the refrigeration system is controlled to start operation.

6. The locker as described in claim 1, characterized in that, The preset temperature control conditions include a temperature rise condition, wherein the temperature rise condition is that the room temperature is lower than the room set temperature; When the preset temperature control conditions are met, determining whether the preset heat exchange conditions are met based on the ambient temperature and the room temperature includes: When the heating condition is met, if the ambient temperature is greater than the room temperature, the heat exchange condition is determined to be met; otherwise, the heat exchange condition is determined not to be met.

7. The locker as described in claim 6, characterized in that, When the heating condition is met, and the heat exchange condition is met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path, including: When the heat exchange conditions are met, the fan located at the upper position in the fan system is controlled to start running in the second direction, and the fan located at the lower position is controlled to start running in the first direction. When the heat exchange conditions are not met, controlling at least one fan in the fan system to start and operate according to the target rotation direction to form internal circulating air supply includes: When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the second direction. Wherein, the first turning direction is a turning direction that causes the fan to send air to the outside of the storage room, and the second turning direction is a turning direction that causes the fan to send air to the inside of the storage room.

8. The locker as described in claim 7, characterized in that, The fan system includes a first fan, a second fan, and a third fan; wherein the first fan is located at the top of the cabinet, the second fan is located at the back of the cabinet, and the third fan is located at the bottom of the cabinet; The control system for starting the wind turbines located relatively above in a second direction and starting the wind turbines located relatively below in a first direction includes: The first and second fans are controlled to start and operate in the second direction, and the third fan is controlled to start and operate in the first direction; The control of at least one fan in the fan system to start operation in a second direction includes: The first and second fans are controlled to start and operate in the second direction, while the third fan is either turned off or started and operated in the second direction.

9. The locker as described in claim 6, characterized in that, The locker also includes a heating system, located inside the locker, for providing heat to the storage compartment; The controller is also used for: When the heating conditions and heat exchange conditions are met, if the ambient temperature is less than or equal to the set temperature of the room, the heating system is controlled to start operation; if the ambient temperature is greater than the set temperature of the room, the heating system is controlled not to start operation. When the heating condition is met but the heat exchange condition is not met, the heating system is controlled to start operation.

10. A method for temperature control of a storage cabinet, characterized in that, The locker includes: The cabinet has internal storage compartments. A fan system, located inside the cabinet, is used to supply air to the storage room; the fan system includes two or more fans; A compartment temperature sensor is installed inside the storage room to collect the current compartment temperature; An ambient temperature sensor is used to collect the current ambient temperature. Controller, used for: When the preset temperature control conditions are met, it is determined whether the heat exchange conditions for heat exchange with the external environment are met based on the ambient temperature and the room temperature; the temperature control conditions are that the room temperature is different from the preset room setting temperature. When the heat exchange conditions are met, at least two fans in the fan system are controlled to start running in different directions to form an internal and external circulation air path; When the heat exchange conditions are not met, at least one fan in the fan system is controlled to start running in the target direction to form an internal circulating air supply.

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