Double-battery power supply switching power supply device and system

Abstract

The invention relates to the technical field of power supply systems, in particular to a double-battery power supply switching power supply device and system.The double-battery power supply switching power supply system comprises a lithium battery power supply module, a sodium battery power supply module, a control module and a temperature monitoring module; the temperature monitoring module is used for monitoring the temperature of the installation environment of the lithium battery power supply module and the sodium battery power supply module in real time and sending temperature data to the control module, the control module can preset a low-temperature threshold value and a high-temperature threshold value of the environment temperature, and when it is found that the environment temperature is larger than the low-temperature threshold value and smaller than the high-temperature threshold value, the control module is started. The lithium battery power supply module is controlled to supply power independently; when the environment temperature is smaller than or equal to the low-temperature threshold value or larger than or equal to the high-temperature threshold value, the sodium battery power supply module is controlled to supply power independently; therefore, the most suitable battery type can be automatically switched to supply power according to the change of the environment temperature, and the power supply system can be ensured to operate efficiently under different temperature conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply systems, and in particular to a dual-battery power supply switching power supply device and system. Background Art

[0002] With the widespread application of renewable energy, the importance of energy storage and power supply systems in power supply has become increasingly prominent. Lithium-ion batteries have been widely used in the field of energy storage and power supply due to their high energy density, long cycle life and good charge and discharge performance. Sodium-ion batteries have become a highly potential alternative energy storage and power supply technology due to their abundant raw material resources, low cost and similar working mechanism to lithium-ion batteries.

[0003] Some energy storage power supply systems in the prior art only use lithium batteries for energy storage and power supply, but lithium batteries cannot be used in some extreme temperature environments. When the temperature is below 0°C, the charging efficiency of lithium-ion batteries will drop significantly, and the discharge capacity will also decrease. Extreme low temperatures, such as below -20°C, may cause lithium batteries to be damaged or malfunction. In high temperature environments, such as above 45°C, the life of lithium-ion batteries will be shortened, and there may be safety hazards, such as thermal runaway. Some energy storage power supply systems in the prior art only use sodium batteries for energy storage and power supply. Although they perform better than lithium batteries in some extreme temperature environments, the energy density and cycle life of sodium batteries are still somewhat different from those of lithium batteries. The existing energy storage power supply system has a single battery type and cannot automatically switch to the appropriate battery type for power supply according to changes in ambient temperature. Summary of the invention

[0004] The purpose of the present invention is to provide a dual-battery power supply switching power supply device and system, which can automatically switch the most suitable battery type for power supply according to changes in ambient temperature, ensuring that the power supply system can maintain efficient operation under different temperature conditions.

[0005] To achieve the above-mentioned object, in a first aspect, the present invention provides a dual-battery power supply switching power supply system, comprising a lithium battery power supply module, a sodium battery power supply module, a control module and a temperature monitoring module; the control module is connected to the lithium battery power supply module and the sodium battery power supply module respectively; the temperature monitoring module is connected to the control module; The lithium battery power supply module is used to provide power supply; The sodium battery power supply module is used to provide power supply; The temperature monitoring module is used to monitor the ambient temperature near the lithium battery power supply module and the sodium battery power supply module, and send the temperature to the control module; The control module is used to preset a low temperature threshold and a high temperature threshold; when it is found that the ambient temperature is greater than the low temperature threshold and less than the high temperature threshold, the lithium battery power supply module is controlled to supply power alone; when it is found that the ambient temperature is less than or equal to the low temperature threshold or greater than or equal to the high temperature threshold, the sodium battery power supply module is controlled to supply power alone.

[0006] Wherein, the temperature monitoring module includes a temperature sensor unit and a data acquisition unit; the data acquisition unit is connected to the temperature sensor unit; The temperature sensor unit is used to monitor the ambient temperature near the lithium battery power supply module and the sodium battery power supply module in real time; The data acquisition unit is used to collect data from the temperature sensor unit and send it to the control module.

[0007] Wherein, the control module includes a microcontroller unit and a switching unit; the switching unit is connected to the microcontroller unit; The microcontroller unit is used to preset a low temperature threshold and a high temperature threshold, and make a judgment based on the received ambient temperature data, and after the judgment, send different switching instructions to the switching unit.

[0008] The switching unit is used to receive the switching instruction of the microcontroller unit and switch the lithium battery power supply module and the sodium battery power supply module according to the switching instruction.

[0009] In a second aspect, the present invention also provides a dual-battery powered switching power supply device, including a mounting cabinet, two dust screens, and two cleaning components; The installation cabinet has two ventilation holes; the two dustproof nets are respectively fixedly arranged on the sides of the two ventilation holes; the two cleaning components are respectively arranged on the installation cabinet for cleaning the dust accumulated on the two dustproof nets.

[0010] The cleaning assembly includes two guide rails, a cleaning brush mechanism, an air cylinder, a column, a piston, a connecting pipe, a perforated nozzle, a connecting rod and a lifting mechanism; The two guide rails are respectively fixedly arranged on one side of the installation cabinet; the cleaning brush mechanism is slidably arranged on the two guide rails; the gas cylinder is located inside the installation cabinet; the column is slidably connected to the gas cylinder, and is fixedly connected to the installation cabinet, and is located inside the installation cabinet; the piston is fixedly connected to the column, and is slidably connected to the gas cylinder, and is located inside the gas cylinder; the connecting pipe is connected and arranged on one side of the gas cylinder; the perforated nozzle is connected and arranged on one side of the connecting pipe; one end of the connecting rod is fixedly connected to the cleaning brush mechanism, and the other end of the connecting rod is fixedly connected to the gas cylinder, and the connecting rod is also slidably connected to the installation cabinet and passes through the installation cabinet; the lifting mechanism is arranged inside the installation cabinet, for driving the gas cylinder to rise and fall.

[0011] Wherein, the cleaning brush mechanism comprises a mounting block, two slide bars, a brush and two springs; The mounting block is slidably set on the two guide rails, and is fixedly connected to the connecting rod, and is respectively penetrated by the two guide rails; the two sliding rods are respectively slidably set on the mounting blocks, and respectively pass through the mounting blocks; the brush is fixedly set on the side of the two sliding rods close to the dustproof net; the two springs are respectively mounted on the two sliding rods, and are located between the brush and the mounting block.

[0012] Wherein, the lifting mechanism includes two guide rods, a slider, an upper mounting plate, a lower mounting plate, a screw rod and a motor; The two guide rods are respectively fixedly arranged inside the installation cabinet; the slider is slidably arranged on the two guide rods and is fixedly connected to the air cylinder; the upper mounting plate is fixedly arranged on the top of the two guide rods; the lower mounting plate is fixedly arranged on the two guide rods; the screw rod is rotatably connected to the upper mounting plate and rotatably connected to the lower mounting plate, and is located between the upper mounting plate and the lower mounting plate; the screw rod is threadedly connected to the slider and passes through the slider; the motor is fixedly arranged on the top of the upper mounting plate; the output end of the motor is fixedly connected to the screw rod.

[0013] The present invention discloses a dual-battery powered switching power supply device and system, wherein the lithium battery power supply module is powered by a lithium battery pack to provide a power supply with high energy density; the sodium battery power supply module is powered by a sodium battery pack to provide a power supply with high energy density; the temperature monitoring module is used to monitor the temperature of the installation environment of the lithium battery power supply module and the sodium battery power supply module in real time, and send the temperature data to the control module, the control module can preset a low temperature threshold and a high temperature threshold of the ambient temperature, and when it is found that the ambient temperature is greater than the low temperature threshold and less than the high temperature threshold, the lithium battery power supply module is controlled to supply power alone; when it is found that the ambient temperature is less than or equal to the low temperature threshold or greater than or equal to the high temperature threshold, the sodium battery power supply module is controlled to supply power alone; thereby, the most suitable battery type can be automatically switched to supply power according to changes in the ambient temperature, ensuring that the power supply system can maintain efficient operation under different temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the control module of the first embodiment of the present invention.

[0017] Figure 3 It is a schematic structural diagram of a temperature monitoring module according to the first embodiment of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the second embodiment of the present invention.

[0019] Figure 5 is a cross-sectional view of a second embodiment of the present invention.

[0020] Figure 6 yes Figure 5 A partial enlargement of detail A.

[0021] Figure 7 is another cross-sectional view of the second embodiment of the present invention.

[0022] 100-lithium battery power supply module, 200-sodium battery power supply module, 300-control module, 400-temperature monitoring module, 3001-microcontroller unit, 3002-switching unit, 4001-temperature sensor unit, 4002-data acquisition unit, 1-installation cabinet, 2-dustproof net, 3-guide rail, 4-cleaning brush mechanism, 5-air cylinder, 6-column, 7-piston, 8-connecting pipe, 9-hole nozzle, 10-connecting rod, 11-lifting mechanism, 101-vent, 401-mounting block, 402-slide rod, 403-brush, 404-spring, 1101-guide rod, 1102-slider, 1103-upper mounting plate, 1104-lower mounting plate, 1105-screw, 1106-motor. DETAILED DESCRIPTION

[0023] The first embodiment of the present application is: See also Figure 1-Figure 3 ,in, Figure 1 It is a schematic structural diagram of the first embodiment of the present invention. Figure 2 It is a schematic diagram of the structure of the control module of the first embodiment of the present invention. Figure 3 It is a schematic structural diagram of a temperature monitoring module according to the first embodiment of the present invention.

[0024] The present invention provides a dual-battery power supply switching power supply system: comprising a lithium battery power supply module 100, a sodium battery power supply module 200, a control module 300 and a temperature monitoring module 400; the temperature monitoring module 400 comprises a temperature sensor unit 4001 and a data acquisition unit 4002; the control module 300 comprises a microcontroller unit 3001 and a switching unit 3002; through the above scheme, the most suitable battery type can be automatically switched to supply power according to changes in ambient temperature, ensuring that the power supply system can maintain efficient operation under different temperature conditions.

[0025] Further, the control module 300 is connected to the lithium battery power supply module 100 and the sodium battery power supply module 200 respectively; the temperature monitoring module 400 is connected to the control module 300; The lithium battery power supply module 100 is used to provide power supply; The sodium battery power supply module 200 is used to provide power supply; The temperature monitoring module 400 is used to monitor the ambient temperature near the lithium battery power supply module 100 and the sodium battery power supply module 200, and send it to the control module 300; The control module 300 is used to preset a low temperature threshold and a high temperature threshold; when it is found that the ambient temperature is greater than the low temperature threshold and less than the high temperature threshold, the lithium battery power supply module 100 is controlled to supply power alone; when it is found that the ambient temperature is less than or equal to the low temperature threshold or greater than or equal to the high temperature threshold, the sodium battery power supply module 200 is controlled to supply power alone.

[0026] In this embodiment, the lithium battery power supply module 100 is powered by a lithium battery pack to provide a high energy density power supply; the sodium battery power supply module 200 is powered by a sodium battery pack to provide a high energy density power supply; the temperature monitoring module 400 is used to monitor the temperature of the installation environment of the lithium battery power supply module 100 and the sodium battery power supply module 200 in real time, and send the temperature data to the control module 300, the control module 300 can preset the low temperature threshold and the high temperature threshold of the ambient temperature, when it is found that the ambient temperature is greater than the low temperature threshold and less than the high temperature threshold, the lithium battery power supply module 100 is controlled to supply power alone; when it is found that the ambient temperature is less than or equal to the low temperature threshold or greater than or equal to the high temperature threshold, the sodium battery power supply module 200 is controlled to supply power alone; thereby, the most suitable battery type can be automatically switched to supply power according to the change of the ambient temperature, ensuring that the power supply system can maintain efficient operation under different temperature conditions; For example, a low temperature threshold value, such as -20°C, is preset in the control module 300, and a high temperature threshold value, such as 45°C, is preset; when it is first used, the temperature monitoring module 400 first measures the ambient temperature. If the measured temperature is 25°C, the ambient temperature is greater than the low temperature threshold value and less than the high temperature threshold value, then the control module 300 controls the lithium battery power supply module 100 to supply power alone first, during which the temperature monitoring module 400 monitors the ambient temperature in real time; if the environment continues to cool down from 25°C to -20°C, the control module 300 immediately controls the lithium battery power supply module 100 to stop power supply, switch to the sodium battery power supply module 200 for power supply alone; if the environment continues to heat up from 25°C to 45°C, the control module 300 immediately controls the lithium battery power supply module 100 to stop power supply and switches to the sodium battery power supply module 200 for power supply alone; when the ambient temperature returns to between -20°C and 45°C, switch to the lithium battery power supply module 100 for power supply alone; if the ambient temperature measured by the temperature monitoring module 400 is lower than -20°C or higher than 45°C at the beginning of use, the control module 300 controls the sodium battery power supply module 200 to power supply alone first.

[0027] Further, the data acquisition unit 4002 is connected to the temperature sensor unit 4001; The temperature sensor unit 4001 is used to monitor the ambient temperature near the lithium battery power supply module 100 and the sodium battery power supply module 200 in real time; The data acquisition unit 4002 is used to collect data from the temperature sensor unit 4001 and send the data to the control module 300 .

[0028] In this embodiment, the temperature sensor unit 4001 uses multiple temperature sensors to measure the ambient temperature near the lithium battery power module 100 and the sodium battery power module 200 in real time from multiple positions; the data acquisition unit 4002 is used to collect the temperature data measured by the temperature sensor unit 4001, take the ambient temperature data with the highest measured value, and send it to the control module 300.

[0029] Further, the switching unit 3002 is connected to the microcontroller unit 3001; The microcontroller unit 3001 is used to preset a low temperature threshold and a high temperature threshold, and make a judgment based on the received ambient temperature data, and after the judgment, send different switching instructions to the switching unit 3002.

[0030] The switching unit 3002 is used to receive the switching instruction of the microcontroller unit 3001, and switch the lithium battery power supply module 100 and the sodium battery power supply module 200 according to the switching instruction.

[0031] In this embodiment, the microcontroller unit 3001 uses a microcontroller as a main device, and programs and presets a high temperature threshold and a low temperature threshold, compares the collected ambient temperature with the high temperature threshold and the low temperature threshold, and when it is first started, it is judged based on the collected ambient temperature whether the lithium battery power supply module 100 or the sodium battery power supply module 200 should be used for power supply first, and sends a corresponding switching instruction to the switching unit 3002, and then continues to collect ambient temperature data. If the ambient temperature changes, different switching instructions are sent to the switching unit 3002 according to the different changes in the ambient temperature; the switching unit 3002 can use a relay to switch the power supply of the lithium battery power supply module 100 and the sodium battery power supply module 200.

[0032] In the dual-battery power supply switching power supply system described in this embodiment, the lithium battery power supply module 100 is powered by a lithium battery pack to provide a high energy density power supply; the sodium battery power supply module 200 is powered by a sodium battery pack to provide a high energy density power supply; the temperature monitoring module 400 is used to monitor the temperature of the installation environment of the lithium battery power supply module 100 and the sodium battery power supply module 200 in real time, and send the temperature data to the control module 300, the control module 300 can preset a low temperature threshold and a high temperature threshold of the ambient temperature, when it is found that the ambient temperature is greater than the low temperature threshold and less than the high temperature threshold, the lithium battery power supply module 100 is controlled to supply power alone; when it is found that the ambient temperature is less than or equal to the low temperature threshold or greater than or equal to the high temperature threshold, the sodium battery power supply module 200 is controlled to supply power alone; thereby, the most suitable battery type can be automatically switched to supply power according to the change of the ambient temperature, ensuring that the power supply system can maintain efficient operation under different temperature conditions.

[0033] The second embodiment of the present application is: See also Figure 4-Figure 7 ,in, Figure 4 It is a schematic structural diagram of the second embodiment of the present invention. Figure 5 is a cross-sectional view of a second embodiment of the present invention. Figure 6 yes Figure 5 A partial enlargement of detail A. Figure 7 is another cross-sectional view of the second embodiment of the present invention.

[0034] The present invention provides a dual-battery powered switching power supply device, comprising an installation cabinet 1, two dustproof nets 2 and two cleaning components; the installation cabinet 1 has two vents 101; the cleaning component comprises two guide rails 3, a cleaning brush mechanism 4, an air cylinder 5, a column 6, a piston 7, a connecting pipe 8, a perforated nozzle 9, a connecting rod 10 and a lifting mechanism 11; the cleaning brush mechanism 4 comprises a mounting block 401, two sliding rods 402, a brush 403 and two springs 404; the lifting mechanism 11 comprises two guide rods 1101, a slider 1102, an upper mounting plate 1103, a lower mounting plate 1104, a screw rod 1105 and a motor 1106.

[0035] Furthermore, the two dustproof nets 2 are fixedly arranged on the sides of the two ventilation openings 101 respectively; the two cleaning components are respectively arranged on the installation cabinet 1 for cleaning the dust accumulated on the two dustproof nets 2.

[0036] In this embodiment, the installation cabinet 1 is used to install the control module 300 and the data acquisition unit 4002 in the temperature monitoring module 400; the installation cabinet 1 has two ventilation holes 101 on the left and right sides for ventilation and heat dissipation, and the dustproof nets 2 are installed at the two ventilation holes 101 to prevent dust from entering the installation cabinet 1. After long-term use, a lot of dust will adhere to and accumulate on the outside of the dustproof net 2, so the cleaning component is provided for cleaning; the dustproof net 2 is a square dustproof net with a frame.

[0037] Furthermore, the two guide rails 3 are respectively fixedly arranged on one side of the installation cabinet 1; the cleaning brush mechanism 4 is slidably arranged on the two guide rails 3; the gas cylinder 5 is located inside the installation cabinet 1; the column 6 is slidably connected to the gas cylinder 5, and is fixedly connected to the installation cabinet 1, and is located inside the installation cabinet 1; the piston 7 is fixedly connected to the column 6, and is slidably connected to the gas cylinder 5, and is located inside the gas cylinder 5; the connecting pipe 8 is communicatively arranged on one side of the gas cylinder 5; the perforated nozzle 9 is communicatively arranged on one side of the connecting pipe 8; one end of the connecting rod 10 is fixedly connected to the cleaning brush mechanism 4, and the other end of the connecting rod 10 is fixedly connected to the gas cylinder 5, and the connecting rod 10 is also slidably connected to the installation cabinet 1 and passes through the installation cabinet 1; the lifting mechanism 11 is arranged inside the installation cabinet 1, for driving the gas cylinder 5 to rise and fall.

[0038] In this embodiment, the two guide rails 3 are located on both sides of the dustproof net 2, and are used for slidingly installing the cleaning brush mechanism 4. The air cylinder 5 can be driven to rise and fall by the lifting mechanism 11. When the air cylinder 5 descends along the column 6, the piston 7 rises relatively in the air cylinder 5, and the air inside the air cylinder 5 is pushed out from the connecting pipe 8, and then sprayed out from the multiple air holes of the perforated nozzle 9, and the multiple air holes are facing the direction of the dustproof net 2; when the air cylinder 5 descends, it will also drive the cleaning brush mechanism 4 to slide down along the two guide rails 3 through the connecting rod 10, and the air cylinder 5 will also drive the perforated nozzle 9 to move synchronously; when cleaning, the lifting mechanism 11 drives the air cylinder 5 to descend. The air cylinder 5 drives the cleaning brush mechanism 4 to slide down through the connecting rod 10, and the cleaning brush mechanism 4 brushes the dust-proof net 2. At the same time, the air cylinder 5 also moves downward with the perforated nozzle 9, and the perforated nozzle 9 sprays air at the dust-proof net 2. The perforated nozzle 9 is slightly higher than the cleaning brush mechanism 4. Therefore, during cleaning, after the cleaning brush mechanism 4 brushes the outer side of the dust-proof net 2, the perforated nozzle 9 sprays air at the dust-proof net 2 from the inner side of the dust-proof net 2, and the dust on the dust-proof net 2 that has not been brushed off by the cleaning brush mechanism 4 is blown off, thereby improving the cleaning effect; after the cleaning brush mechanism 4 finishes brushing a part, the perforated nozzle 9 immediately sprays air to clean this part.

[0039] Furthermore, the mounting block 401 is slidably set on the two guide rails 3, and is fixedly connected to the connecting rod 10, and is respectively penetrated by the two guide rails 3; the two sliding rods 402 are respectively slidably set on the mounting block 401, and respectively pass through the mounting block 401; the brush 403 is fixedly set on the two sliding rods 402 close to the side of the dustproof net 2; the two springs 404 are respectively mounted on the two sliding rods 402, and are located between the brush 403 and the mounting block 401.

[0040] In this embodiment, the mounting block 401 is slidably set on the two guide rails 3 and is driven to slide by the connecting rod 10, and is used to slidably install the two sliding rods 402. The brush 403 is in contact with the dustproof net 2, and the two springs 404 are in a compressed state, always giving the brush 403 an elastic force, and the direction of the elastic force is toward the dustproof net 2, so that the brush 403 is always tightly attached to the dustproof net 2, and can better contact and clean the dustproof net 2.

[0041] Furthermore, the two guide rods 1101 are respectively fixedly arranged inside the installation cabinet 1; the slider 1102 is slidably arranged on the two guide rods 1101 and fixedly connected to the air cylinder 5; the upper mounting plate 1103 is fixedly arranged on the top of the two guide rods 1101; the lower mounting plate 1104 is fixedly arranged on the two guide rods 1101; the screw rod 1105 is rotatably connected to the upper mounting plate 1103 and rotatably connected to the lower mounting plate 1104, and is located between the upper mounting plate 1103 and the lower mounting plate 1104; the screw rod 1105 is threadedly connected to the slider 1102 and passes through the slider 1102; the motor 1106 is fixedly arranged on the top of the upper mounting plate 1103; the output end of the motor 1106 is fixedly connected to the screw rod 1105.

[0042] In this embodiment, the two guide rods 1101 are used to slide and install the slider 1102, the upper mounting plate 1103 is used to install the motor 1106, and the lower mounting plate 1104 is used to cooperate with the upper mounting plate 1103 to rotate and install the screw rod 1105. The motor 1106 is used to drive the screw rod 1105 to rotate, and the screw rod 1105 drives the slider 1102 to slide and rise and fall, and the slider 1102 drives the air cylinder 5 to rise and fall.

[0043] The dual-battery powered switching power supply device described in this embodiment, when cleaning, the lifting mechanism 11 drives the air cylinder 5 to descend, and the air cylinder 5 drives the cleaning brush mechanism 4 to slide down through the connecting rod 10, and the cleaning brush mechanism 4 brushes the dustproof net 2. At the same time, the air cylinder 5 also moves downward with the perforated nozzle 9, and the perforated nozzle 9 sprays air at the dustproof net 2. The perforated nozzle 9 is slightly higher than the cleaning brush mechanism 4. Therefore, when cleaning, after the cleaning brush mechanism 4 brushes the outer side of the dustproof net 2, the perforated nozzle 9 sprays air from the inner side of the dustproof net 2 to blow off the dust on the dustproof net 2 that has not been brushed off by the cleaning brush mechanism 4, thereby improving the cleaning effect; after the cleaning brush mechanism 4 finishes brushing a part, the perforated nozzle 9 immediately sprays air to clean this part.

[0044] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A dual battery power supply switching power supply system, characterized in that: It includes a lithium battery power supply module, a sodium battery power supply module, a control module and a temperature monitoring module; the control module is connected to the lithium battery power supply module and the sodium battery power supply module respectively; the temperature monitoring module is connected to the control module; The lithium battery power supply module is used to provide power supply; The sodium battery power supply module is used to provide power supply; The temperature monitoring module is used to monitor the ambient temperature near the lithium battery power supply module and the sodium battery power supply module, and send the temperature to the control module; The control module is used to preset a low temperature threshold and a high temperature threshold; when it is found that the ambient temperature is greater than the low temperature threshold and less than the high temperature threshold, the lithium battery power supply module is controlled to supply power alone; When it is found that the ambient temperature is less than or equal to the low temperature threshold or greater than or equal to the high temperature threshold, the sodium battery power supply module is controlled to supply power alone.

2. A dual-battery power supply switching power supply system as claimed in claim 1, characterized in that: The temperature monitoring module includes a temperature sensor unit and a data acquisition unit; the data acquisition unit is connected to the temperature sensor unit; The temperature sensor unit is used to monitor the ambient temperature near the lithium battery power supply module and the sodium battery power supply module in real time; The data acquisition unit is used to collect data from the temperature sensor unit and send it to the control module.

3. A dual-battery power supply switching power supply system as claimed in claim 2, characterized in that: The control module includes a microcontroller unit and a switching unit; the switching unit is connected to the microcontroller unit; The microcontroller unit is used to preset a low temperature threshold and a high temperature threshold, and make a judgment based on the received ambient temperature data, and after the judgment, send different switching instructions to the switching unit.

4. The switching unit is used to receive the switching instruction of the microcontroller unit and switch the lithium battery power supply module and the sodium battery power supply module according to the switching instruction.

5. A dual-battery power supply switching power supply device, applied to a dual-battery power supply switching power supply system as claimed in claims 1 to 3; characterized in that: Includes installation cabinet, two dust screens and two cleaning kits; The installation cabinet has two ventilation holes; the two dustproof nets are fixedly arranged on the sides of the two ventilation holes respectively; the two cleaning components are respectively arranged on the installation cabinet for cleaning the dust accumulated on the two dustproof nets.

6. A dual-battery power supply switching power supply device as claimed in claim 4, characterized in that: The cleaning assembly comprises two guide rails, a cleaning brush mechanism, an air cylinder, a column, a piston, a connecting pipe, a perforated nozzle, a connecting rod and a lifting mechanism; The two guide rails are respectively fixedly arranged on one side of the installation cabinet; the cleaning brush mechanism is slidably arranged on the two guide rails; the gas cylinder is located inside the installation cabinet; the column is slidably connected to the gas cylinder, and is fixedly connected to the installation cabinet, and is located inside the installation cabinet; the piston is fixedly connected to the column, and is slidably connected to the gas cylinder, and is located inside the gas cylinder; the connecting pipe is connected and arranged on one side of the gas cylinder; the perforated nozzle is connected and arranged on one side of the connecting pipe; one end of the connecting rod is fixedly connected to the cleaning brush mechanism, and the other end of the connecting rod is fixedly connected to the gas cylinder, and the connecting rod is also slidably connected to the installation cabinet and passes through the installation cabinet; the lifting mechanism is arranged inside the installation cabinet, for driving the gas cylinder to rise and fall.

7. A dual-battery power supply switching power supply device as claimed in claim 5, characterized in that: The cleaning brush mechanism comprises a mounting block, two slide bars, a brush and two springs; The mounting block is slidably set on the two guide rails, and is fixedly connected to the connecting rod, and is respectively penetrated by the two guide rails; the two sliding rods are respectively slidably set on the mounting blocks, and respectively pass through the mounting blocks; the brush is fixedly set on the side of the two sliding rods close to the dustproof net; the two springs are respectively mounted on the two sliding rods, and are located between the brush and the mounting block.

8. A dual-battery power supply switching power supply device as claimed in claim 6, characterized in that: The lifting mechanism comprises two guide rods, a slider, an upper mounting plate, a lower mounting plate, a screw rod and a motor; The two guide rods are respectively fixedly arranged inside the installation cabinet; The slider is slidably arranged on the two guide rods and is fixedly connected to the air cylinder; the upper mounting plate is fixedly arranged on the top of the two guide rods; the lower mounting plate is fixedly arranged on the two guide rods; the screw rod is rotatably connected to the upper mounting plate and to the lower mounting plate, and is located between the upper mounting plate and the lower mounting plate; the screw rod is threadedly connected to the slider and passes through the slider; the motor is fixedly arranged on the top of the upper mounting plate; the output end of the motor is fixedly connected to the screw rod.

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