Temperature control system and method of outdoor unit for communication

Abstract

The invention provides a temperature control system and method of an outdoor unit for communication, and relates to the technical field of communication equipment. The system comprises a control unit, a cooling capacity cache unit, a cold source unit, a first heat exchange unit and a second heat exchange unit, the cold source unit is used for providing cooling capacity, the cooling capacity cache unit is used for obtaining the cooling capacity from the cold source unit and providing cooling capacity cache or cooling capacity release, and the first heat exchange unit is used for cooling a power source and a battery. The second heat exchange unit is used for cooling the information communication equipment, and the control unit is used for judging the operation state of the outdoor unit for communication, the outdoor temperature, the load rate of the cold source unit, the power utilization time period and the cooling capacity of the storage device and controlling operation of the cold source unit, the cooling capacity cache unit, the first heat exchange unit and the second heat exchange unit according to the judgment result. The problems that in the prior art, a temperature control mode cannot be adjusted according to outdoor temperature and other change factors, and the energy-saving and cost-reducing effect is poor are at least solved. The method is suitable for communication equipment temperature control and other scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of communication devices, and particularly to a temperature control system and method for an outdoor unit for communication. Background Art

[0002] In an outdoor cabinet for information communication, there are usually heat-generating loads such as power supplies, batteries, and information communication devices that require a temperature control system for cooling. The more common temperature control systems are rack air conditioners, door panel embedded air conditioners, and semiconductor air conditioners. The first two can cool the entire cabinet, but the temperature needs to be set according to the device with the strictest temperature requirement, and it cannot operate finely to save energy consumption; the semiconductor air conditioner usually only cools an independent battery compartment due to low efficiency and small cooling capacity.

[0003] Due to the relatively high energy consumption and electricity costs of the above-mentioned ordinary temperature control systems, some energy-saving temperature control systems are currently being applied, including heat exchange air conditioners, cabinet fresh air devices, heat pipe air conditioners, etc. However, these energy-saving temperature control systems are generally used as a supplement to ordinary temperature control systems and cannot operate finely either. They can only provide cooling when the outdoor temperature is relatively low. When the energy-saving temperature control system is unavailable, only ordinary air conditioners can still operate. The energy-saving and cost-reducing effect mainly depends on the outdoor temperature. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a temperature control system and method for an outdoor unit for communication in view of the above deficiencies of the prior art. This system can enable the temperature control system to operate finely for each heat-generating load of the outdoor cabinet for information communication, and always operate at the best efficiency in response to various changing factors such as outdoor temperature, peak-valley electricity price, and cooling demand, improving the energy efficiency of the entire temperature control system and reducing the energy consumption cost.

[0005] In a first aspect, the present invention provides a temperature control system for an outdoor unit for communication, including a control unit, a cooling capacity caching unit, a cold source unit, a first heat exchange unit, and a second heat exchange unit. The cooling capacity caching unit includes a storage device. The cold source unit is connected to the cooling capacity caching unit and the second heat exchange unit and is used to provide cooling capacity. The cooling capacity caching unit is connected to the first heat exchange unit and the second heat exchange unit and is used to obtain cooling capacity from the cold source unit and provide cooling capacity caching or cooling capacity release. The first heat exchange unit is used to cool the power supply and the battery. The second heat exchange unit is used to cool the information communication device. The control unit is connected to the cold source unit, the cooling capacity caching unit, the first heat exchange unit, and the second heat exchange unit and is used to judge the operating state of the outdoor unit for communication, and / or the outdoor temperature, and / or the load rate of the cold source unit, and / or the power consumption period, and / or the cooling capacity of the storage device, and control the operation of the cold source unit, the cooling capacity caching unit, the first heat exchange unit, and the second heat exchange unit according to the judgment result, where the operating state includes one of the following: first startup state, daily operating state, discharging state, stopping discharging state, or charging completed state.

[0006] Preferably, the control unit is configured to, when the judgment result is the daily operation state and the outdoor temperature is within the range of the first temperature threshold to the second temperature threshold, control the cold storage unit to provide cold energy for the first heat exchange unit, control the cold source unit to provide cold energy for the second heat exchange unit in a self-regulating mode, and control the first heat exchange unit to provide cold energy for the power supply and the battery in a form that the cold energy flow rate is less than the micro flow rate threshold.

[0007] Preferably, the cold storage unit further includes a first control valve, the first control valve is on the pipeline between the storage device and the cold source unit, the second heat exchange unit includes a fourth control valve, the fourth control valve is on the pipeline between the cold storage unit and the second heat exchange unit, and the control unit is further configured to, when the judgment result is the daily operation state, the outdoor temperature is higher than the first temperature threshold, and the load rate of the cold source unit is lower than the load rate threshold, control the first control valve to open, and control the cold source unit to increase the cold energy output and reach the load rate threshold, so that the cold source unit provides cold energy for the storage device of the cold storage unit until the cold energy of the storage device is full; the control unit is further configured to, when the judgment result is the daily operation state, the outdoor temperature is higher than the first temperature threshold, the load rate of the cold source unit is higher than or equal to the load rate threshold, and the cold energy of the storage device is full, control the first control valve to close, so that the cold source unit resumes the self-regulating mode to provide cold energy for the second heat exchange unit, control the fourth control valve to open, so that the cold storage unit provides cold energy for the second heat exchange unit; the control unit is further configured to, when the cold energy of the storage device is less than the first threshold, control the fourth control valve to close, so that the cold storage unit stops providing cold energy for the second heat exchange unit, and control the first control valve to open, so that the cold source unit provides cold energy for the storage device of the cold storage unit until the cold energy of the storage device is full.

[0008] Preferably, the control unit is further configured to, when the judgment result is the daily operation state and the outdoor temperature is lower than the second temperature threshold, control the first control valve to open, and control the cold source unit to increase the cold energy output so that the cold source unit provides cold energy for the storage device of the cold storage unit, and maintain the cold energy of the storage device greater than the second threshold.

[0009] Preferably, the control unit is further configured to, when the judgment result is the daily operation state and the electricity consumption period is in the valley price period, control the first control valve to open, and control the cold source unit to increase the cold energy output so that the cold source unit provides cold energy for the storage device of the cold storage unit, and maintain the cold energy of the storage device greater than the second threshold.

[0010] Preferably, the control unit is further configured to, when the judgment result is the first - running state, control the first control valve to open, and control the cold - source unit to provide cold energy to the cold - energy buffer unit in a full - load mode until the cold energy storage device is full. The control unit is further configured to, when the judgment result is the first - running state and the cold energy storage device is full, control the first control valve to close, control the cold - energy buffer unit to provide cold energy to the first heat - exchange unit, and control the cold - source unit to provide cold energy to the second heat - exchange unit in a self - regulating mode.

[0011] Preferably, the control unit is further configured to, when the judgment result is the discharging state, control the first control valve to close, control the cold - energy buffer unit to provide cold energy to the first heat - exchange unit, and control the first heat - exchange unit to cool the power supply and the battery in a form that the cold - energy flow rate is greater than the full - flow threshold.

[0012] Preferably, the control unit is connected to the power supply. The control unit is further configured to, when the judgment result is the stop - discharging state, send an instruction of not charging the battery to the power supply, control the first control valve to open, control the cold - source unit to provide cold energy to the storage device of the cold - energy buffer unit and the second heat - exchange unit in a full - load mode, control the cold - energy buffer unit to provide cold energy to the first heat - exchange unit, and control the first heat - exchange unit to cool the power supply and the battery in a form that the cold - energy flow rate is less than the micro - flow threshold. The control unit is further configured to, when the judgment result is the stop - discharging state and the cold energy storage device is full, send an instruction of charging the battery to the power supply, and control the first heat - exchange unit to cool the power supply and the battery in a form that the cold - energy flow rate is greater than the full - flow threshold.

[0013] Preferably, the control unit is further configured to, when the judgment result is the charging - completed state, control the cold - source unit to provide cold energy to the storage device of the cold - energy buffer unit and the second heat - exchange unit in a full - load mode, and control the cold - energy buffer unit to provide cold energy to the first heat - exchange unit. The control unit is further configured to, when the judgment result is the charging - completed state and the cold energy storage device is full, control the first control valve to close, and control the cold - source unit to provide cold energy to the second heat - exchange unit in a self - regulating mode.

[0014] In a second aspect, the present invention further provides a temperature - control method for an outdoor communication machine, which is applied to the temperature - control system for an outdoor communication machine provided in the first aspect above. The temperature - control method includes: judging the operating state of the outdoor communication machine, and / or the outdoor temperature, and / or the load rate of the cold - source unit, and / or the power - consumption period, and / or the cold energy of the storage device; controlling the operation of the cold - source unit, the cold - energy buffer unit, the first heat - exchange unit, and the second heat - exchange unit according to the judgment result, where the operating state includes one of the following: the first - running state, the daily - running state, the discharging state, the stop - discharging state, or the charging - completed state.

[0015] A temperature control system and method for an outdoor communication machine provided by the present invention dynamically adjusts the cooling capacity acquisition and output modes of a cold source unit, a cooling capacity cache unit, a first heat exchange unit, and a second heat exchange unit according to various changing factors such as the operating state of the outdoor communication machine, the outdoor temperature, the load rate of the cold source unit, the power consumption period, and the cooling capacity of the storage device. Therefore, the present invention can enable the temperature control system to operate precisely for each heat load of the outdoor communication cabinet for information communication, and always operate at the best efficiency for various changing factors such as outdoor temperature, peak-valley electricity price, and cooling capacity demand, improving the energy efficiency of the entire temperature control system and reducing the energy consumption cost. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a temperature control system for an outdoor communication machine according to Embodiment 1 of the present invention;

[0017] Figure 2 It is a schematic structural diagram of another temperature control system for an outdoor communication machine according to Embodiment 1 of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the electrical connection structure of a temperature control system for an outdoor communication machine according to Embodiment 1 of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the power supply structure of a temperature control system for an outdoor communication machine according to Embodiment 1 of the present invention;

[0020] Figure 5 It is a flowchart of a temperature control method for an outdoor communication machine according to Embodiment 2 of the present invention;

[0021] Figure 6 It is a flowchart of a temperature control method for an outdoor communication machine in the daily operating state according to Embodiment 2 of the present invention;

[0022] Figure 7 It is a flowchart of a temperature control method for an outdoor communication machine in the first operating state according to Embodiment 2 of the present invention;

[0023] Figure 8 It is a flowchart of a temperature control method for an outdoor communication machine in the battery charge and discharge state according to Embodiment 2 of the present invention;

[0024] In the figure: 1 - storage device; 2 - conveying device; 3 - first control valve; 4 - first fan; 5 - first heat exchanger; 6 - second control valve; 7 - second fan; 8 - second heat exchanger; 9 - third heat exchanger; 10 - third control valve; 11 - fourth control valve; 12 - compressor; 13 - third fan, 14 - fourth heat exchanger; 15 - first temperature sensor; 16 - second temperature sensor; 17 - third temperature sensor; 18 - fourth temperature sensor; 19 - controller. Detailed Embodiments

[0025] To enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] It can be understood that the specific embodiments and the accompanying drawings described herein are only used to explain the present invention, rather than limiting the present invention.

[0027] It can be understood that, without conflict, the various embodiments in the present invention and the features in the embodiments can be combined with each other.

[0028] It can be understood that, for the convenience of description, only the parts related to the present invention are shown in the drawings of the present invention, and the parts unrelated to the present invention are not shown in the drawings.

[0029] It can be understood that each unit and module involved in the embodiments of the present invention may correspond to only one physical structure, or may be composed of multiple physical structures, or multiple units and modules may also be integrated into one physical structure.

[0030] It can be understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of the present invention may occur in an order different from that marked in the accompanying drawings.

[0031] It can be understood that in the flowcharts and block diagrams of the present invention, the possible architectures, functions, and operations of the systems, devices, equipment, and methods according to the embodiments of the present invention are shown. Among them, each block in the flowchart or block diagram may represent a unit, module, program segment, or code, which contains executable instructions for implementing the specified function. Moreover, each block or combination of blocks in the block diagram and flowchart can be implemented by a hardware-based system for implementing the specified function, or can be implemented by a combination of hardware and computer instructions.

[0032] It can be understood that the units and modules involved in the embodiments of the present invention can be implemented in software or in hardware. For example, the units and modules can be located in the processor.

[0033] Embodiment 1:

[0034] As Figure 1As shown in the figure, this embodiment provides a temperature control system for an outdoor communication unit. The temperature control system for the outdoor communication unit includes a control unit, a cold quantity caching unit, a cold source unit, a first heat exchange unit, and a second heat exchange unit. The cold quantity caching unit includes a storage device. The cold source unit is connected to the cold quantity caching unit and the second heat exchange unit and is used to provide cold quantity. The cold quantity caching unit is connected to the first heat exchange unit and the second heat exchange unit and is used to obtain cold quantity from the cold source unit and provide cold quantity caching or cold quantity release. The first heat exchange unit is used to cool the power supply and the battery. The second heat exchange unit is used to cool the information communication equipment. The control unit is connected to the cold source unit, the cold quantity caching unit, the first heat exchange unit, and the second heat exchange unit and is used to judge the operating state of the outdoor communication unit, and / or the outdoor temperature, and / or the load rate of the cold source unit, and / or the power consumption period, and / or the cold quantity of the storage device, and control the operation of the cold source unit, the cold quantity caching unit, the first heat exchange unit, and the second heat exchange unit according to the judgment result. Among them, the operating state includes one of the following: the first operating state, the daily operating state, the discharging state, the stopping discharging state, or the charging completed state.

[0035] In this embodiment, the outdoor communication unit takes the outdoor communication cabinet for information communication as an example. The outdoor communication unit for information communication usually consists of a power supply, a battery, and information communication equipment. Another more specific structure is as Figure 2 shown. The control unit includes a controller 19. The cold quantity caching unit includes a storage device 1, a conveying device 2, a first control valve 3, and a fourth temperature sensor 18. The cold source unit includes a third fan 13, a fourth heat exchanger 14, a third temperature sensor 17, and a compressor 12. The first heat exchange unit includes a first fan 4, a first heat exchanger 5, a second control valve 6, and a first temperature sensor 15. The second heat exchange unit includes a second fan 7, a second heat exchanger 8, a third heat exchanger 9, a third control valve 10, a fourth control valve 11, and a second temperature sensor 16. The pipeline connection structure of the temperature control system for the outdoor communication unit in this embodiment is as Figure 2 shown. Each component of the cold quantity caching unit, the cold source unit, the first heat exchange unit, and the second heat exchange unit is connected through pipelines, while the controller of the control unit is connected to each component of the cold quantity caching unit, the cold source unit, the first heat exchange unit, and the second heat exchange unit in different ways, such as through wired connection (such as Ethernet connection), wireless connection (such as Wi-Fi or Bluetooth connection), or other dedicated communication protocols (such as Modbus or CAN bus). It should be noted that the electrical connection structure of the temperature control system for the outdoor communication unit is as Figure 3As shown in the figure, in this embodiment, the controller is respectively connected to the first temperature sensor 15, the second temperature sensor 16, the third temperature sensor 17, the fourth temperature sensor 18, the power supply, the compressor 12, the conveying device 2, the first fan 4, the second fan 7, the third fan 13, the first control valve 3, the second control valve 6, the third control valve 10, and the fourth control valve 11, and receives signals input from the first temperature sensor 15, the second temperature sensor 16, the third temperature sensor 17, the fourth temperature sensor 18, and the power supply to generate corresponding signals and output them to the compressor 12, the conveying device 2, the first fan 4, the second fan 7, the third fan 13, the first control valve 3, the second control valve 6, the third control valve 10, and the fourth control valve 11.

[0036] Specifically, the control unit is configured to, when the judgment result is the daily operation state and the outdoor temperature is within the range of the first temperature threshold to the second temperature threshold, control the cold quantity caching unit to provide cold quantity for the first heat exchange unit, control the cold source unit to provide cold quantity for the second heat exchange unit in a self-regulating mode, and control the first heat exchange unit to provide cold quantity for the power supply and the battery in a form that the cold quantity flow rate is less than the micro flow rate threshold.

[0037] In this embodiment, the temperature requirements and load characteristics of the power supply, battery, and information and communication equipment of the outdoor unit for communication are different. The daily heat generation of the power supply is low, the heat generation of the battery during daily floating charge is very small, and the heat generation is only large during charging and discharging. The information and communication equipment has a large and stable heat generation. During daily operation, the first heat exchange unit provides cold quantity for the power supply and the battery in a form that the cold quantity flow rate is less than the micro flow rate threshold Q1 through the adjustment of the second control valve. When the battery is in daily floating charge, the first heat exchange unit provides cold quantity for the power supply and the battery in a form that is slightly greater than the micro flow rate threshold Q1, which can ensure that there is sufficient cold quantity in the cold quantity caching unit to meet the cooling requirements during battery charging and discharging.

[0038] The first temperature sensor is used to monitor the power battery temperature T1_measured, and a preset temperature threshold T1_set of the power battery is provided inside the first temperature sensor. The second temperature sensor is used to monitor the information communication device temperature T2_measured, and a preset temperature threshold T2_set of the information communication device is provided inside the second temperature sensor. During daily operation, the first fan and the second control valve of the first heat exchange unit operate to cool the power supply and battery in a form where the cooling capacity flow rate is less than the micro flow rate threshold Q1, and the cooling capacity flow rate can be finely adjusted according to the difference between T1_measured and T1_set; the second fan and the third control valve of the second heat exchange unit operate, the fourth control valve is closed, and the first control valve of the cooling capacity buffer unit is closed, and the cooling capacity is slowly and evenly released to the first heat exchange unit. The cold source unit provides corresponding cooling capacity according to the cooling demand of the information communication device, that is, the difference between T2_measured and T2_set, that is, provides cooling capacity for the second heat exchange unit in a self-regulating mode. The storage device of the cooling capacity buffer unit stores a first cooling medium for providing cooling capacity. The first cooling medium is transported to the first heat exchange unit by a transport device. The first cooling medium transported from the cooling capacity buffer unit cools the power supply and battery through the first heat exchanger. The storage device can provide a preset demand for the cooling capacity required during the charging and discharging process of the battery. In this embodiment, the preset demand is taken as 200% of the cooling capacity required during the charging and discharging process of the battery; the cold source unit generates a second cooling medium for providing cooling capacity and transports the second cooling medium to the second heat exchange unit, and cools the information communication device through the second heat exchanger.

[0039] Optionally, the cooling capacity buffer unit further includes a first control valve. The first control valve is on the pipeline between the storage device and the cold source unit. The second heat exchange unit includes a fourth control valve. The fourth control valve is on the pipeline between the cooling capacity buffer unit and the second heat exchange unit. The control unit is further configured to, when the judgment result is the daily operation state, the outdoor temperature is higher than the first temperature threshold, and the load rate of the cold source unit is lower than the load rate threshold, control the first control valve to open, and control the cold source unit to increase the cooling capacity output and reach the load rate threshold, so that the cold source unit provides cooling capacity for the storage device of the cooling capacity buffer unit until the cooling capacity of the storage device is full. The control unit is further configured to, when the judgment result is the daily operation state, the outdoor temperature is higher than the first temperature threshold, the load rate of the cold source unit is higher than or equal to the load rate threshold, and the cooling capacity of the storage device is full, control the first control valve to close, so that the cold source unit resumes the self-regulating mode to provide cooling capacity for the second heat exchange unit, control the fourth control valve to open, so that the cooling capacity buffer unit provides cooling capacity for the second heat exchange unit. The control unit is further configured to, when the cooling capacity of the storage device is less than the first threshold, control the fourth control valve to close, so that the cooling capacity buffer unit stops providing cooling capacity for the second heat exchange unit, and control the first control valve to open, so that the cold source unit provides cooling capacity for the storage device of the cooling capacity buffer unit until the cooling capacity of the storage device is full.

[0040] In this embodiment, a third temperature sensor is further provided outdoors. The third temperature sensor is used to detect the outdoor temperature T3 measurement. The third temperature sensor is connected to the control unit, and the first temperature threshold and the second temperature threshold are set in the third temperature sensor. In this embodiment, taking the first temperature threshold being equal to the second temperature threshold (i.e., both the first threshold and the second threshold are T3 setting) as an example, the cold quantity caching unit further includes a fourth temperature sensor and a first control valve. The fourth temperature sensor is arranged in the storage device of the cold quantity caching unit. The fourth temperature sensor is used to detect the temperature T4 measurement of the storage device, and the full-load temperature threshold T4 setting, the temperature difference threshold T temperature difference setting, the first threshold, and the second threshold are set for the fourth temperature sensor. The second heat exchange unit further includes a third heat exchanger, and the third heat exchanger shares the second fan with the second heat exchanger. The cold source unit further includes a compressor. The second cooling medium after absorbing heat through the cold quantity caching unit and the second heat exchange unit is sucked in by the compressor and discharged to the fourth heat exchanger, and then sent out again after cooling for a cooling cycle. The second cooling medium generated by the cold source unit is transported to the cold quantity caching unit to provide cold quantity for the first cooling medium in the storage device of the cold quantity caching unit. The first cooling medium is transported to the first heat exchange unit by the transport device, and the first cooling medium transported from the cold quantity caching unit cools the power supply and the battery through the first heat exchanger. In this embodiment, to ensure that the first cooling medium in the storage device of the cold quantity caching unit is sufficient to provide cold quantity for the first heat exchange unit and / or the second heat exchange unit, the second cooling medium generated by the cold source unit is preferentially transported to the cold quantity caching unit and the second heat exchange unit. Under the condition that it can ensure that the first cooling medium in the storage device of the cold quantity caching unit is sufficient to provide cold quantity for the first heat exchange unit and / or the second heat exchange unit, the order of transporting the second cooling medium generated by the cold source unit to the cold quantity caching unit and the second heat exchange unit can be adjusted to give priority to transporting to the second heat exchange unit or transporting to the cold quantity caching unit and the second heat exchange unit simultaneously.

[0041] With the change in the number or traffic volume of information and communication devices, their heat generation also changes. During daily operation, when the outdoor temperature is relatively high (i.e., when the outdoor temperature T3 measured by the third temperature sensor is greater than the first temperature threshold) and the heat generation of the information and communication devices is relatively small, if the cold source unit provides cooling capacity for the first heat exchange unit in the self-regulation mode, the load rate of the cold source unit is relatively low and the cooling efficiency is not high. Therefore, during daily operation and when the outdoor temperature is high, in order to improve the cooling efficiency, by judging the load rate of the cold source unit, when the load rate of the cold source unit is lower than the load rate threshold, the first control valve is opened and the cooling capacity output of the cold source unit is increased to reach the load rate threshold. For example, it is increased from 40% to 50%, that is, within the load rate range with the optimal energy efficiency. In this embodiment, the load rate threshold is taken as 50%-70% of the full load of the cold source unit. When the load rate of the cold source unit reaches the load rate threshold, a part of the cooling capacity output by the cold source unit is delivered to the second heat exchange unit for cooling the information and communication devices, and the other part is stored in the storage device of the cooling capacity cache unit until the cooling capacity of the storage device is full. After the cooling capacity of the storage device is full, the first control valve is controlled to close, and the fourth control valve is opened. The cooling capacity produced by the cooling capacity cache unit in the high-efficiency mode of the cold source unit (i.e., when the cooling capacity output of the cold source unit reaches the load rate threshold) is used for cooling the information and communication devices through the third heat exchanger of the second heat exchange unit. It is judged whether the cooling capacity of the storage device of the cooling capacity cache unit is less than the first threshold. In this embodiment, the first threshold is taken as 50% of the cooling capacity required during the battery charge and discharge process. When the cooling capacity of the storage device of the cooling capacity cache unit is less than the first threshold, that is, (1 - (T4 measured - T4 set) / T temperature difference set) < 50%, the fourth control valve is closed, the third heat exchanger is deactivated, and the cooling capacity cache unit resumes to only provide cooling capacity for the first heat exchange unit, and the cold source unit is readjusted to increase the cooling capacity output to produce cooling capacity for the cooling capacity cache unit. During daily operation and when the outdoor temperature is high, the load rate of the cold source unit is cyclically judged and the processing process when the load rate of the cold source unit is lower than the load rate threshold is repeated (i.e., increasing the cooling capacity output of the cold source unit as described above), so as to achieve the purpose of efficient cooling. In this embodiment, by cyclically judging whether the cold source unit is within the range of the optimal energy efficiency load rate and repeating the processing process when the load rate of the cold source unit is lower than the load rate threshold under the daily operation state and high outdoor temperature, the cooling efficiency of the temperature control system in high-temperature situations is realized, and the energy consumption cost generated by the long cooling time of the outdoor unit for communication is reduced.

[0042] Optionally, the control unit is further configured to, when the judgment result is the daily operation state and the outdoor temperature is lower than the second temperature threshold, control the first control valve to open, and control the cold source unit to increase the cooling capacity output so that the cold source unit provides cooling capacity for the storage device of the cold source cache unit, and maintain the cooling capacity of the storage device greater than the second threshold.

[0043] In this embodiment, during daily operation and when the outdoor temperature is relatively low (i.e., the detected outdoor temperature T3 detected by the third temperature sensor is less than the second temperature threshold T3 set), the efficiency of the cold source unit is relatively high, and cold quantity should be obtained as much as possible. When the first heat exchange unit and the second heat exchange unit are operating normally, open the first control valve to increase the cold quantity output of the cold source unit, control the cold source unit to provide cold quantity to both the cold quantity buffer unit and the second heat exchange unit simultaneously, and ensure that the cold quantity of the storage device of the cold quantity buffer unit is always greater than the second threshold. In this embodiment, the second threshold is taken as 90% for example, that is, (1 - (T4 detected - T4 set) / T temperature difference set) ≥ 90%, where T temperature difference set is the difference between the maximum temperature allowed for the second cooling medium and T4 set. The cold quantity stored in the storage device of the cold quantity buffer unit is always the cold quantity generated by the high-efficiency refrigeration of the cold source unit. After the outdoor temperature rises and the efficiency of the cold source unit decreases, this part of the cold quantity obtained by high-efficiency refrigeration can be used at any time. In this embodiment, by utilizing the high-efficiency refrigeration of the cold source unit during daily operation and when the outdoor temperature is relatively low, a higher refrigeration effect, a higher energy efficiency ratio, a lower energy consumption cost, and a more stable temperature control of the temperature control system are achieved.

[0044] Optionally, the control unit is further configured to, when the judgment result is the daily operation state and the power consumption period is in the valley price time period, control the first control valve to open, and control the cold source unit to increase the cold quantity output so that the cold source unit provides cold quantity to the storage device of the cold quantity buffer unit, and maintain the cold quantity of the storage device greater than the second threshold.

[0045] In this embodiment, if the energy consumption cost of the cold source unit for producing cold quantity is relatively low during the valley price time period of the peak-valley electricity price policy, the cold quantity buffer unit, the first heat exchange unit, and the second heat exchange unit should also utilize this time period to obtain cold quantity as much as possible. Obtain the valley price time period according to the peak-valley electricity price policy. When in daily operation and the power consumption period is in the valley price time period, the first heat exchange unit and the second heat exchange unit are operating normally, open the first control valve, the cold source unit increases the operating cold quantity output, the cold source unit provides cold quantity to both the cold quantity buffer unit and the second heat exchange unit simultaneously, and ensure that the cold quantity of the storage device of the cold quantity buffer unit is always greater than the second threshold. The cold quantity stored in the storage device of the cold quantity buffer unit is always the cold quantity produced by the cold source unit during the valley price time period. After the valley price time period passes, the cold quantity buffer unit can use the cold quantity produced during the valley price time period at any time. In this embodiment, by utilizing the high-efficiency refrigeration of the cold source unit during daily operation and when the outdoor temperature is relatively low, the energy consumption cost of the temperature control system is reduced.

[0046] Optionally, the control unit is further configured to, when the judgment result is the first running state, control the first control valve to open, and control the cold source unit to provide cold energy to the cold energy storage unit in a full-load mode until the cold energy storage device is full. The control unit is further configured to, when the judgment result is the first running state and the cold energy storage device is full, control the first control valve to close, control the cold energy storage unit to provide cold energy to the first heat exchange unit, and control the cold source unit to provide cold energy to the second heat exchange unit in a self-regulating mode.

[0047] In this embodiment, during the first run, when the power is on, the charging switch of the battery is off and not charging, the information communication device is in the off state, the cold source unit runs at full load, the first control valve is open, so that the cold energy storage unit obtains cold energy. When the fourth temperature sensor detects that the temperature T4 measured of the storage device of the cold energy storage unit is equal to the full-load temperature threshold T4 set, it is determined that the cold energy storage unit has obtained full-load cold energy. At this time, the first heat exchange unit, i.e., the first fan and the second control valve, and the second heat exchange unit, i.e., the second fan and the third control valve, are operated. When the first temperature sensor detects that the ambient temperature T1 measured of the power supply and the battery is equal to the preset temperature threshold T1 set for the power supply and the battery, and the second temperature sensor detects that the temperature T2 measured of the information communication device is equal to the preset temperature threshold T2 set for the information communication device, the battery charging switch is turned on and the battery is put into the floating charge state, and the information communication device is turned on to enter the daily operation.

[0048] Optionally, the control unit is further configured to, when the judgment result is the discharge state, control the first control valve to close, control the cold energy storage unit to provide cold energy to the first heat exchange unit, and control the first heat exchange unit to cool the power supply and the battery in a form that the cold energy flow rate is greater than the full flow rate threshold.

[0049] Optionally, the control unit is connected to the power supply. The control unit is further configured to, when the judgment result is the stop discharge state, send an instruction to the power supply to stop charging the battery, and control the first control valve to open, control the cold source unit to provide cold energy to the storage device of the cold energy storage unit and the second heat exchange unit in a full-load mode, control the cold energy storage unit to provide cold energy to the first heat exchange unit, and control the first heat exchange unit to cool the power supply and the battery in a form that the cold energy flow rate is less than the micro flow rate threshold. The control unit is further configured to, when the judgment result is the stop discharge state and the cold energy storage device is full, send an instruction to the power supply to charge the battery, and control the first heat exchange unit to cool the power supply and the battery in a form that the cold energy flow rate is greater than the full flow rate threshold.

[0050] Optionally, the control unit is further configured to, when the judgment result is the charging completed state, control the cold source unit to provide cold for the storage device of the cold quantity cache unit and the second heat exchange unit in the full load mode, and control the cold quantity cache unit to provide cold for the first heat exchange unit. The control unit is further configured to, when the judgment result is the charging completed state and the cold quantity of the storage device is full, control the first control valve to close, and control the cold source unit to provide cold for the second heat exchange unit in the self-adjusting mode.

[0051] In this embodiment, when the mains power fails and the battery discharges, only the first heat exchange unit and the cold quantity cache unit obtain battery power supply from the power source. The control unit detects the power alarm signal, and the cold quantity cache unit provides cold for the first heat exchange unit. The first heat exchange unit adjusts the second control valve to cool the power source and the battery in the form that the cold quantity flow rate is greater than the full flow rate threshold Q1. In this embodiment, the micro flow rate threshold is equal to the full flow rate threshold (i.e., both the micro flow rate threshold and the full flow rate threshold are Q1). When the mains power is restored and the battery stops discharging, the control unit sends an instruction of not charging the battery to the power source. The cold quantity cache unit, the first heat exchange unit, and the second heat exchange unit all operate. The first heat exchange unit cools the power source and the battery in the form that the cold quantity flow rate is less than the micro flow rate threshold Q1. The first control valve is opened, and the cold source unit provides cold for the cold quantity cache unit and the second heat exchange unit in the full load mode. When the cold quantity of the cold quantity cache unit is full, the control unit sends an instruction of charging the battery to the power source. The first heat exchange unit cools the power source and the battery in the form that the cold quantity flow rate is greater than the full flow rate threshold Q1. After the battery is fully charged, the first control valve is opened, and the cold source unit provides cold for the cold quantity cache unit and the second heat exchange unit in the full load mode. When the cold quantity of the cold quantity cache unit is full again, the first control valve is closed, and the cold source unit resumes the self-adjusting mode to provide cold for the second heat exchange unit, completing the battery charge and discharge cooling process. When the mains power is not restored in time and the battery runs out of power, the entire outdoor cabinet is powered off. When the mains power is restored, the above battery charging operation logic process is executed again. In this embodiment, by controlling the output form of the cold quantity flow rate of the first heat exchange unit, the decoupling of the cold quantity required by the power source and the battery from the cold quantity capacity configuration of the temperature control system is realized. There is no need to configure the cold quantity capacity according to the sum of the heat generation of the battery charge and discharge and the heat generation of the information and communication equipment, that is, the maximum heat generation, reducing the cold quantity capacity configuration and operating power of the temperature control system, thereby reducing the demand for the mains power capacity.

[0052] The power supply structure of the temperature control system of the outdoor unit for communication is as Figure 4As shown in the figure, the controller, conveying device, first fan, second control valve, and first temperature sensor of the temperature control system of the outdoor unit for communication obtain commercial power through the power supply to operate. The second fan, first control valve, third control valve, fourth control valve, third fan, second temperature sensor, third temperature sensor, and fourth temperature sensor of the temperature control system of the outdoor unit for communication directly obtain commercial power to operate. The information communication device and the battery obtain commercial power through the power supply for information communication or charging respectively. Therefore, when the commercial power is cut off, the second fan, first control valve, third control valve, fourth control valve, third fan, second temperature sensor, third temperature sensor, and fourth temperature sensor of the temperature control system of the outdoor unit for communication cannot obtain power to operate, while the controller, conveying device, first fan, second control valve, and first temperature sensor of the temperature control system of the outdoor unit for communication and the information communication device can obtain battery power through the power supply to operate.

[0053] A temperature control system for an outdoor unit for communication provided in this embodiment dynamically adjusts the cold quantity acquisition and cold quantity output modes of the cold source unit, cold quantity cache unit, first heat exchange unit, and second heat exchange unit according to various changing factors such as the operating state of the outdoor unit for communication, outdoor temperature, cold source unit load rate, power consumption period, and cold quantity of the storage device, so as to realize the refined operation of the temperature control system for each heat load of the outdoor cabinet for information communication, and always operate at the best efficiency for various changing factors such as outdoor temperature, peak-valley electricity price, and cold quantity demand, improve the energy efficiency of the entire temperature control system, and reduce the energy consumption cost. In addition, in the normal operating state and when the outdoor temperature is relatively high, by repeatedly judging whether the cold source unit is within the range of the best energy efficiency load rate and repeating the processing process when the cold source unit load rate is lower than the load rate threshold, the cooling efficiency of the temperature control system in high-temperature situations is realized, and the energy consumption cost caused by the long cooling time of the outdoor unit for communication is reduced. By using the cold source unit to efficiently refrigerate in the normal operating state and when the outdoor temperature is relatively low, a higher refrigeration effect, a higher energy efficiency ratio, a lower energy consumption cost, and a more stable temperature control of the temperature control system are achieved. By using the cold source unit to efficiently refrigerate in the normal operating state and when the outdoor temperature is relatively low, the energy consumption cost of the temperature control system is reduced. By controlling the cold quantity flow output form of the first heat exchange unit, the cold quantity required by the power supply and the battery is decoupled from the cold quantity capacity configuration of the temperature control system, and there is no need to configure the cold quantity capacity according to the sum of the heat generation of battery charging and discharging and the heat generation of the information communication device, that is, the maximum heat generation, which reduces the cold quantity capacity configuration and operating power of the temperature control system, thereby reducing the demand for commercial power capacity.

[0054] Embodiment 2:

[0055] As Figure 5 shown in the figure, this embodiment provides a temperature control method for an outdoor unit for communication. The temperature control method for an outdoor unit for communication includes:

[0056] Step S201, determine the operating state of the outdoor unit for communication, and / or the outdoor temperature, and / or the load rate of the cold source unit, and / or the electricity consumption period, and / or the cooling capacity of the storage device.

[0057] Step S202, control the operation of the cold source unit, the cooling capacity cache unit, the first heat exchange unit, and the second heat exchange unit according to the judgment result, where the operating state includes one of the following: first run state, daily operation state, discharge state, stop discharge state, or charge completed state.

[0058] Specifically, step S202: Control the operation of the cold source unit, the cooling capacity cache unit, the first heat exchange unit, and the second heat exchange unit according to the judgment result, including steps S2021 - S2033:

[0059] Step S2021, when the judgment result is the daily operation state and the outdoor temperature is within the range of the first temperature threshold to the second temperature threshold, control the cooling capacity cache unit to provide cooling capacity for the first heat exchange unit, control the cold source unit to provide cooling capacity for the second heat exchange unit in the self - regulating mode, and control the first heat exchange unit to provide cooling capacity for the power supply and the battery in the form that the cooling capacity flow rate is less than the micro - flow threshold.

[0060] Step S2022, when the judgment result is the daily operation state, the outdoor temperature is higher than the first temperature threshold, and the load rate of the cold source unit is lower than the load rate threshold, control the first control valve to open, and control the cold source unit to increase the cooling capacity output and reach the load rate threshold, so that the cold source unit provides cooling capacity for the storage device of the cold source cache unit until the cooling capacity of the storage device is full.

[0061] Step S2023, when the judgment result is the daily operation state, the outdoor temperature is higher than the first temperature threshold, the load rate of the cold source unit is higher than or equal to the load rate threshold, and the cooling capacity of the storage device is full, control the first control valve to close, so that the cold source unit resumes the self - regulating mode to provide cooling capacity for the second heat exchange unit, control the fourth control valve to open, so that the cooling capacity cache unit provides cooling capacity for the second heat exchange unit.

[0062] Step S2024, when the cooling capacity of the storage device is less than the first threshold, control the fourth control valve to close, so that the cooling capacity cache unit stops providing cooling capacity for the second heat exchange unit, and control the first control valve to open, so that the cold source unit provides cooling capacity for the storage device of the cold source cache unit until the cooling capacity of the storage device is full.

[0063] Step S2025, when the judgment result is the daily operation state and the outdoor temperature is lower than the second temperature threshold, control the first control valve to open, and control the cold source unit to increase the cooling capacity output so that the cold source unit provides cooling capacity for the storage device of the cold source cache unit, and maintain the cooling capacity of the storage device greater than the second threshold.

[0064] Step S2026, when the judgment result is the daily operation state and the power consumption period is in the valley price time period, control the first control valve to open, and control the cold source unit to increase the cooling capacity output so that the cold source unit provides cooling capacity for the storage device of the cold source buffer unit, and maintain the cooling capacity of the storage device greater than the second threshold.

[0065] In this embodiment, when the judgment result is the daily operation state, the temperature control method of the outdoor unit for communication is as Figure 6 shown.

[0066] Step S2027, when the judgment result is the first operation state, control the first control valve to open, and control the cold source unit to provide cooling capacity to the cold quantity buffer unit in the full load mode until the cooling capacity of the storage device is full.

[0067] Step S2028, when the judgment result is the first operation state and the cooling capacity of the storage device is full, control the first control valve to close, control the cold quantity buffer unit to provide cooling capacity for the first heat exchange unit, and control the cold source unit to provide cooling capacity for the second heat exchange unit in the self-regulation mode.

[0068] In this embodiment, when the judgment result is the first operation state, the temperature control method of the outdoor unit for communication is as Figure 7 shown.

[0069] Step S2029, when the judgment result is the discharge state, control the first control valve to close, control the cold quantity buffer unit to provide cooling capacity for the first heat exchange unit, and control the first heat exchange unit to cool the power supply and the battery in the form that the cooling capacity flow rate is greater than the full flow rate threshold.

[0070] Step S2030, when the judgment result is the stop discharge state, send an instruction of non-charging the battery to the power supply, control the first control valve to open, control the cold source unit to provide cooling capacity for the storage device of the cold quantity buffer unit and the second heat exchange unit in the full load mode, control the cold quantity buffer unit to provide cooling capacity for the first heat exchange unit, and control the first heat exchange unit to cool the power supply and the battery in the form that the cooling capacity flow rate is less than the micro flow rate threshold.

[0071] Step S2031, when the judgment result is the stop discharge state and the cooling capacity of the storage device is full, send an instruction of charging the battery to the power supply, and control the first heat exchange unit to cool the power supply and the battery in the form that the cooling capacity flow rate is greater than the full flow rate threshold.

[0072] Step S2032, when the judgment result is the charging completion state, control the cold source unit to provide cooling capacity for the storage device of the cold quantity buffer unit and the second heat exchange unit in the full load mode, and control the cold quantity buffer unit to provide cooling capacity for the first heat exchange unit.

[0073] Step S2033, when the judgment result is the charging completed state and the cooling capacity of the storage device is full, control the first control valve to close, and control the cold source unit to provide cooling capacity for the second heat exchange unit in the self-regulation mode.

[0074] In this embodiment, during the battery charge and discharge state, the temperature control method of the outdoor unit for communication is as Figure 8 shown, where the battery charge and discharge state is the discharge state, the stop discharge state, and the charging completed state in this embodiment.

[0075] It can be understood that the above-provided temperature control method for the outdoor unit for communication is applied to the system corresponding to Embodiment 1 provided above. Therefore, the beneficial effects it can achieve can refer to the beneficial effects of the system in Embodiment 1 above and the corresponding solutions in the specific implementation manners below, which will not be elaborated here.

[0076] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A temperature control system for an outdoor unit used in communication, characterized in that, It includes a control unit, a cooling capacity caching unit, a cold source unit, a first heat exchange unit and a second heat exchange unit. The cooling capacity caching unit includes a storage device. The cold source unit is connected to the cooling capacity caching unit and the second heat exchange unit and is used to provide cooling capacity. The cooling capacity caching unit is connected to the first heat exchange unit and the second heat exchange unit and is used to obtain cooling capacity from the cold source unit and provide cooling capacity caching or cooling capacity release. The first heat exchange unit is used to cool the power supply and the battery. The second heat exchange unit is used to cool the information and communication equipment. The control unit is connected to the cold source unit, the cooling capacity caching unit, the first heat exchange unit and the second heat exchange unit and is used to judge the operating state of the outdoor unit for communication, and / or the outdoor temperature, and / or the load rate of the cold source unit, and / or the power consumption period, and / or the cooling capacity of the storage device, and control the operation of the cold source unit, the cooling capacity caching unit, the first heat exchange unit and the second heat exchange unit according to the judgment result. Among them, the operating state includes one of the following: first running state, daily running state, discharging state, stopping discharging state or charging completed state.

2. The temperature control system for an outdoor unit used in communication according to claim 1, characterized in that, The control unit is used to control the cooling capacity caching unit to provide cooling capacity for the first heat exchange unit, control the cold source unit to provide cooling capacity for the second heat exchange unit in a self-regulating mode, and control the first heat exchange unit to provide cooling capacity for the power supply and the battery in a form that the cooling capacity flow rate is less than the micro flow rate threshold when the judgment result is the daily running state and the outdoor temperature is within the range of the first temperature threshold to the second temperature threshold.

3. The temperature control system for an outdoor unit used in communication according to claim 2, characterized in that, The cooling capacity caching unit further includes a first control valve. The first control valve is on the pipeline between the storage device and the cold source unit. The second heat exchange unit includes a fourth control valve. The fourth control valve is on the pipeline between the cooling capacity caching unit and the second heat exchange unit. The control unit is further used to control the first control valve to open and control the cold source unit to increase the cooling capacity output and reach the load rate threshold when the judgment result is the daily running state, the outdoor temperature is higher than the first temperature threshold, and the load rate of the cold source unit is lower than the load rate threshold, so that the cold source unit provides cooling capacity for the storage device of the cold source caching unit until the cooling capacity of the storage device is full. The control unit is further used to control the first control valve to close when the judgment result is the daily running state, the outdoor temperature is higher than the first temperature threshold, the load rate of the cold source unit is higher than or equal to the load rate threshold, and the cooling capacity of the storage device is full, so that the cold source unit resumes the self-regulating mode to provide cooling capacity for the second heat exchange unit, and control the fourth control valve to open, so that the cooling capacity caching unit provides cooling capacity for the second heat exchange unit. The control unit is further used to control the fourth control valve to close when the cooling capacity of the storage device is less than the first threshold, so that the cooling capacity caching unit stops providing cooling capacity for the second heat exchange unit, and control the first control valve to open, so that the cold source unit provides cooling capacity for the storage device of the cooling capacity caching unit until the cooling capacity of the storage device is full.

4. The temperature control system for an outdoor unit used in communication according to claim 3, characterized in that, The control unit is further used to control the first control valve to open and control the cold source unit to increase the cooling capacity output so that the cold source unit provides cooling capacity for the storage device of the cold source caching unit and maintain the cooling capacity of the storage device greater than the second threshold when the judgment result is the daily running state and the outdoor temperature is lower than the second temperature threshold.

5. The temperature control system for an outdoor unit used in communication according to claim 3, characterized in that, The control unit is further configured to, when the judgment result is the daily operation state and the electricity consumption period is in the valley price period, control the first control valve to open, and control the cold source unit to increase the cooling output so that the cold source unit provides cooling for the storage device of the cold source buffer unit, and maintain the cooling of the storage device greater than the second threshold.

6. The temperature control system for an outdoor unit used in communication according to claim 3, characterized in that, The control unit is further configured to, when the judgment result is the first operation state, control the first control valve to open, and control the cold source unit to provide cooling to the cold quantity buffer unit in the full load mode until the cold quantity of the storage device is full. The control unit is further configured to, when the judgment result is the first operation state and the cold quantity of the storage device is full, control the first control valve to close, control the cold quantity buffer unit to provide cooling for the first heat exchange unit, and control the cold source unit to provide cooling for the second heat exchange unit in the self-adjusting mode.

7. The temperature control system for an outdoor unit used in communication according to claim 3, characterized in that, The control unit is further configured to, when the judgment result is the discharging state, control the first control valve to close, control the cold quantity buffer unit to provide cooling for the first heat exchange unit, and control the first heat exchange unit to cool the power supply and the battery in a form that the cold quantity flow rate is greater than the full flow rate threshold.

8. The temperature control system for an outdoor unit used in communication according to claim 3, characterized in that, The control unit is connected to the power supply. The control unit is further configured to, when the judgment result is the stop discharging state, send an instruction of not charging the battery to the power supply, and control the first control valve to open, control the cold source unit to provide cooling for the storage device of the cold quantity buffer unit and the second heat exchange unit in the full load mode, control the cold quantity buffer unit to provide cooling for the first heat exchange unit, and control the first heat exchange unit to cool the power supply and the battery in a form that the cold quantity flow rate is less than the micro flow rate threshold. The control unit is further configured to, when the judgment result is the stop discharging state and the cold quantity of the storage device is full, send an instruction of charging the battery to the power supply, and control the first heat exchange unit to cool the power supply and the battery in a form that the cold quantity flow rate is greater than the full flow rate threshold.

9. The temperature control system for an outdoor unit used in communication according to claim 3, characterized in that, The control unit is further configured to, when the judgment result is the charging completion state, control the cold source unit to provide cooling for the storage device of the cold quantity buffer unit and the second heat exchange unit in the full load mode, and control the cold quantity buffer unit to provide cooling for the first heat exchange unit. The control unit is further configured to, when the judgment result is the charging completion state and the cold quantity of the storage device is full, control the first control valve to close, and control the cold source unit to provide cooling for the second heat exchange unit in the self-adjusting mode.

10. A temperature control method for an outdoor unit used in communication, applied to the temperature control system for an outdoor unit used in communication according to any one of claims 1 - 9, characterized in that, The temperature control method includes: Judging the operation state of the outdoor unit for communication, and / or, the outdoor temperature, and / or, the load rate of the cold source unit, and / or, the electricity consumption period, and / or, the cold quantity of the storage device; Controlling the operation of the cold source unit, the cold quantity buffer unit, the first heat exchange unit, and the second heat exchange unit according to the judgment result, where the operation state includes one of the following: the first operation state, the daily operation state, the discharging state, the stop discharging state, or the charging completion state.

Images