Battery charging cabinet capable of automatically detecting charging temperature, extinguishing fire and preventing explosion

Abstract

The utility model discloses a battery charging cabinet capable of automatically detecting charging temperature, extinguishing fire and preventing explosion, which comprises a charging cabinet main body, a horizontal temperature sensor, a vertical temperature sensor, a fire extinguishing gas storage device, a gas pipeline, a plurality of gas control valves, a plurality of charging interfaces and a control unit, the horizontal temperature sensors and the vertical temperature sensors are installed on the inner walls of the charging bins, the sensing direction of the horizontal temperature sensors is perpendicular to the sensing direction of the vertical temperature sensors, the multiple gas control valves are located in the multiple charging bins in a one-to-one correspondence mode, and the gas conveying pipeline communicates with the fire extinguishing gas storage device and goes deep into the multiple charging bins. The tail end of the charging unit communicates with the multiple gas control valves, the multiple charging interfaces are installed in the charging bin in a one-to-one correspondence mode and electrically connected with the charging power source, the control unit comprises a main board, and the horizontal temperature sensor, the vertical temperature sensor, the multiple gas control valves and the multiple charging interfaces are all electrically connected with the main board.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging cabinets, in particular to a battery charging cabinet capable of automatically detecting charging temperature and extinguishing fire and preventing explosion. Background Art

[0002] With the widespread use of electric bicycles and electric tricycles, charging the batteries of electric vehicles has become an indispensable part of people's daily life and work. However, overheating may occur during battery charging, leading to safety problems such as battery explosion and fire. In recent years, electric vehicle battery explosion incidents have occurred frequently, and battery-related incidents have caused the loss of both people and property, as well as fires in residential buildings, all due to the improper use of battery vehicles. Electric vehicle batteries can only be charged in a standardized manner at designated locations to avoid the occurrence of the above-mentioned problems. Setting up a battery charging cabinet has become an important measure to solve the above-mentioned problems. Therefore, a charging cabinet that can automatically detect the battery charging temperature and take timely fire extinguishing measures is needed. Utility Model Content

[0003] The utility model aims to provide a battery charging cabinet which can automatically detect charging temperature and extinguish fire and explosion.

[0004] According to one aspect of the utility model, a battery charging cabinet for automatically detecting charging temperature and extinguishing fire and explosion is provided, comprising a charging cabinet body, a horizontal temperature sensor, a vertical temperature sensor, a fire extinguishing gas storage device, a gas transmission pipeline, a plurality of gas control valves, a plurality of charging interfaces and a control unit, wherein the charging cabinet body is provided with a plurality of charging compartments, the horizontal temperature sensor and the vertical temperature sensor are both installed on the inner wall of the charging compartment, the sensing direction of the horizontal temperature sensor and the sensing direction of the vertical temperature sensor are perpendicular to each other, a plurality of gas control valves are located in the plurality of charging compartments in a one-to-one correspondence, the gas transmission pipeline is connected to the fire extinguishing gas storage device and penetrates into the plurality of charging compartments, and the ends thereof are respectively connected to the plurality of gas control valves, a plurality of charging interfaces are installed in the charging compartments in a one-to-one correspondence and are respectively electrically connected to the charging power supply, the control unit comprises a main board, the horizontal temperature sensor, the vertical temperature sensor, the plurality of gas control valves and the plurality of charging interfaces are all electrically connected to the main board.

[0005] In some embodiments, the charging cabinet body is also provided with a first storage slot and a second storage slot, the first storage slot is located above the second storage slot, the first storage slot and the second storage slot are both located on one side of the multiple charging compartments, the mainboard is installed in the first storage slot, and the fire extinguishing gas storage device is installed in the second storage slot.

[0006] In some embodiments, the main board includes a PCB board, a processor, a relay, an RS-485 interface, a switch drive circuit and a battery. The processor, relay, RS-485 interface, switch drive circuit and battery are all integrated and installed on the PCB board. The relay, RS-485 interface, switch drive circuit, battery, horizontal temperature sensor, vertical temperature sensor and gas control valve are all electrically connected to the processor.

[0007] In some embodiments, the horizontal temperature sensor includes a first horizontal temperature sensor and a second horizontal temperature sensor, the first horizontal temperature sensor and the second horizontal temperature sensor are arranged opposite to each other on the left and right, and the vertical temperature sensor is fixedly installed on the top wall of the charging bin, and the number of the first horizontal temperature sensor, the second horizontal temperature sensor and the vertical temperature sensor is the same and corresponds to the number of the charging bins.

[0008] In some embodiments, the first horizontal temperature sensor, the second horizontal temperature sensor, and the vertical temperature sensor are all pyroelectric infrared sensors.

[0009] In some embodiments, the fire extinguishing gas storage device includes a gas cylinder, a connector and an external component. The gas cylinder is installed in the second storage slot, one end of the connector is connected to the gas cylinder, and the other end is connected to the gas pipeline, and the external component is connected to the connector.

[0010] In some embodiments, the fire extinguishing gas storage device also includes a mechanical pressure gauge, which is embedded in the outer wall of the charging cabinet body and corresponds to the position of the gas storage cylinder. The mechanical pressure gauge is connected to the gas storage cylinder, and the gas storage cylinder is filled with fire extinguishing gas, and the fire extinguishing gas is one of heptafluoropropane, carbon dioxide or nitrogen.

[0011] In some embodiments, the control unit also includes a display screen and an external communication antenna. The display screen and the external communication antenna are both connected to the processor signal. The external communication antenna is fixedly mounted on the outer wall of the charging cabinet body, and the display screen is embedded on the outer wall of the charging cabinet body and corresponds to the position of the main board.

[0012] In some embodiments, the utility model further includes an audible and visual alarm, which is mounted on the top of the charging cabinet body and is electrically connected to the processor.

[0013] In some embodiments, the charging cabinet body is assembled by an outer steel plate and an inner steel plate. The inner steel plate surrounds the charging compartment. The outer steel plate and the charging compartment and adjacent charging compartments are connected by support columns. The inner wall of the charging compartment is coated with an inner coating, which is a polytetrafluoroethylene coating. The outer steel plate is a rust-proof galvanized steel plate, and the inner steel plate is a galvanized steel plate.

[0014] Beneficial effects of the utility model: The utility model automatically detects the charging temperature of the battery in the charging compartment by setting a horizontal temperature sensor and a vertical temperature sensor, a fire extinguishing gas storage device, a gas pipeline and multiple gas control valves, and can promptly detect battery overheating and take fire extinguishing measures, effectively preventing battery explosion and fire accidents; by setting a control unit, the fire extinguishing system is automatically triggered without manual intervention, reducing the possibility of human error, improving reliability and stability, and monitoring the battery temperature in real time, so that the working status of the battery can be grasped in time, facilitating the taking of measures in advance and reducing the probability of battery fire. The utility model monitors the rechargeable battery in real time, and can automatically cut off the power and extinguish the fire when the battery temperature is abnormal, which can improve the safety of battery charging and can be widely used in designated charging and swapping areas in various public places. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a battery charging cabinet that automatically detects charging temperature and extinguishes fire and explosion according to an implementation mode of the utility model.

[0016] Figure 2 This is a front view of a battery charging cabinet that automatically detects charging temperature and extinguishes fire and explosion according to an embodiment of the utility model.

[0017] Figure 3 This is a structural schematic diagram of a charging cabinet body of a battery charging cabinet that automatically detects charging temperature and extinguishes fire and explosion according to an implementation mode of the utility model.

[0018] Figure 4 The present invention is a block diagram of a mainboard of a battery charging cabinet that automatically detects charging temperature and extinguishes fire and explosion according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the embodiments.

[0020] refer to Figure 1 to Figure 4 The utility model provides a battery charging cabinet that automatically detects charging temperature and extinguishes fire and explosion, including a charging cabinet body 1, a horizontal temperature sensor, a vertical temperature sensor 3, a fire extinguishing gas storage device 4, a gas pipeline 5, multiple gas control valves 6, multiple charging interfaces 7, a control unit and an audible and visual alarm 9.

[0021] The charging cabinet body 1 is provided with a first storage slot 11, a second storage slot 12 and a plurality of charging compartments 13. The first storage slot 11 and the second storage slot 12 are both located on one side of the plurality of charging compartments 13, and the first storage slot 11 is located above the second storage slot 12. The surfaces of the first storage slot 11 and the second storage slot 12 are both provided with a door panel that can be opened and closed to protect the items in the slot. The charging cabinet body 1 is formed by installing an outer steel plate 14 and an inner steel plate 15. The inner steel plate 15 surrounds a plurality of independent charging compartments 13, and the outer steel plate 14 and the charging compartments 13, and the adjacent charging compartments 13 are fixedly connected by support columns 16. There is air between the outer steel plate 14 and the charging compartments 13, and between the adjacent charging compartments 13, which is used to isolate the temperature between the inner and outer steel plates. The inner wall of the charging compartment 13 is coated with an inner coating 17. The inner coating 17 is a polytetrafluoroethylene coating, the outer steel plate 14 is a rust-proof galvanized steel plate, and the inner steel plate 15 is a galvanized steel plate. The charging cabinet body 1 provides good fire and explosion protection and structural support. In specific implementation, the number of charging compartments 13 is determined according to actual needs.

[0022] The horizontal temperature sensor and the vertical temperature sensor 3 are both installed on the inner wall of the charging bin 13, and the sensing direction of the horizontal temperature sensor is perpendicular to the sensing direction of the vertical temperature sensor 3. The vertical temperature sensor 3 is fixedly installed on the top wall of the charging bin 13. The horizontal temperature sensor includes a first horizontal temperature sensor 21 and a second horizontal temperature sensor 22, and the first horizontal temperature sensor 21 and the second horizontal temperature sensor 22 are arranged on the left and right inner walls of the charging bin 13. The number of the first horizontal temperature sensor 21, the second horizontal temperature sensor 22 and the vertical temperature sensor 3 is the same, and corresponds to the number of the charging bins 13. The first horizontal temperature sensor 21, the second horizontal temperature sensor 22 and the vertical temperature sensor 3 are all pyroelectric infrared sensors.

[0023] The fire extinguishing gas storage device 4 includes a gas cylinder 41, a connector 42, an external component 43 and a mechanical pressure gauge 44. The gas cylinder 41, the connector 42 and the external component 43 are all located in the second storage slot 12. One end of the connector 42 is connected to the gas cylinder 42, and the other end is connected to the gas pipeline 5, and the external component 43 is connected to the connector 42. The mechanical pressure gauge 44 is embedded on the outer wall of the charging cabinet body 1 and corresponds to the position of the gas cylinder 41. The gas cylinder 41 is filled with fire extinguishing gas. The fire extinguishing gas is any gas with a fire extinguishing function, specifically selected from heptafluoropropane, carbon dioxide or nitrogen. The mechanical pressure gauge 44 is connected to the gas cylinder 41 to display the gas pressure in the gas cylinder 41. The external component 43 is conveniently connected to the fire extinguishing gas storage tank, so that the fire extinguishing gas can be added to the gas cylinder 41 in time when the gas pressure is insufficient. The connector 42 is a three-way connector, which facilitates the transportation of the fire-extinguishing gas in the gas cylinder 41 to the charging compartment 13 and the replenishment of the fire-extinguishing gas into the gas cylinder 41 .

[0024] Multiple gas control valves 6 are installed one-to-one in multiple charging compartments 13, and the gas pipeline 5 is connected to the connector 42 and extends into the multiple charging compartments 13, and its end is connected to multiple gas control valves 6 one-to-one. The gas control valve 6 is used to control the opening and closing of the end of the gas pipeline in the charging compartment. When the battery temperature in the compartment exceeds the threshold, the gas control valve 6 in the compartment opens, and the fire extinguishing gas in the gas cylinder 41 is sprayed out through the gas pipeline 5 and the gas control valve 6 to extinguish the battery in the compartment. Multiple charging interfaces 7 are installed one-to-one in multiple charging compartments 13, and are electrically connected to the charging power supply respectively.

[0025] The control unit includes a main board 81, a display screen 82 and an external communication antenna 83. The main board 81 is installed in the first storage slot 11. The main board 81 includes a PCB board, a processor 812, a relay 813, an RS-485 interface 814, a switch drive circuit 815 and a battery 816. The processor 812, the relay 813, the RS-485 interface 814, the switch drive circuit 815 and the battery 816 are all integrated and installed on the PCB board. The display screen 82, the external communication antenna 83, the sound and light alarm 9, the relay 813, the RS-485 interface 814, the switch drive circuit 815, the battery 816, the first horizontal temperature sensor 21, the second horizontal temperature sensor 22, the vertical temperature sensor 3 and the gas control valve 6 are all electrically connected to the processor 812. Multiple charging interfaces 7 are all electrically connected to the relay 813.

[0026] Processor 812 is a STM32F103C8T6 chip from STMicroelectronics. The chip can operate at 72MHz, has a three-stage pipeline, 64KB flash program memory and 20KB internal SRAM, and has three asynchronous URAT communication interfaces, supports full-duplex communication, and has two 12-bit 16-channel AD conversion modules, which can meet the sampling requirements of charging voltage and charging current, and do not require an external AD module, reducing the complexity and design cost of system design.

[0027] The processor 812 outputs the collected voltage and current information to the control terminal in real time via the RS-485 interface 814. The control terminal analyzes the battery charging status based on the voltage and current information. When the battery is fully charged, the control terminal sends a power off instruction to the processor 812, and the processor 812 controls the relay 913 to turn off the power input of the charging interface of the warehouse to prevent overcharging of the battery.

[0028] The processor 812 can also receive the temperature of the battery monitored by the first horizontal temperature sensor 21, the second horizontal temperature sensor 22 and the vertical temperature sensor 3, and make a threshold judgment on the temperature. If the temperature exceeds the threshold, a signal is sent to the sound and light alarm 9, and the gas control valve 6 in the compartment is opened to release the fire extinguishing gas, and the power input of the charging interface 7 in the compartment is cut off at the same time, so as to realize the fire extinguishing and explosion-proof treatment of abnormal batteries.

[0029] The external communication antenna 83 is fixedly mounted on the outer wall of the charging cabinet body 1 for transmitting signals to the outside. The display screen 82 is embedded on the outer wall of the charging cabinet body 1 and corresponds to the position of the main board 81. It is used to display the charging progress. The sound and light alarm 9 is installed on the top of the charging cabinet body 1.

[0030] The utility model can also add a camera to upload the real-time status of the scene to the fire safety protection monitoring management platform and the local fire safety work platform.

[0031] When the utility model is used, the battery 10 to be charged is placed in the charging compartment 13, and the charging interface 7 in the compartment is connected to the rechargeable battery 10 through a charging line to charge the rechargeable battery 10. During the charging process, the first horizontal temperature sensor, the second horizontal temperature sensor and the vertical temperature sensor in the compartment monitor the temperature of the rechargeable battery 10 in real time in the horizontal direction and the vertical direction, and transmit the monitored temperature back to the processor 812. When the temperature exceeds the threshold, the processor 812 sends a signal to the sound and light alarm 9, and opens the gas control valve 6 in the compartment to release the fire extinguishing gas, and at the same time cuts off the power input of the charging interface 7 in the compartment, so as to achieve rapid fire extinguishing and explosion prevention treatment of abnormal batteries.

[0032] During the charging process, the processor 812 also samples and monitors the charging voltage and charging current of the rechargeable battery 10, and outputs them to the control terminal in real time. The control terminal analyzes the battery charging status based on the voltage and current information. The control terminal transmits the battery charging status back to the processor 812 and displays it on the display screen 82, so that the user can understand the charging progress in time. When the battery is fully charged, the control terminal sends a power off instruction to the processor 812, and the processor 812 controls the relay 913 to turn off the power input of the charging interface of the compartment to prevent overcharging of the battery, extend the battery life, and reduce costs.

[0033] When the mechanical pressure gauge 44 shows that the fire extinguishing gas in the gas cylinder 41 is insufficient, the fire extinguishing gas storage tank is connected to the gas cylinder 41 through a hose through an external connection component, and new fire extinguishing gas is added into the gas cylinder 41.

[0034] The above are only some embodiments of the present invention. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A battery charging cabinet that automatically detects charging temperature and extinguishes fire and explosion, characterized in that: It includes a charging cabinet body, a horizontal temperature sensor, a vertical temperature sensor, a fire extinguishing gas storage device, a gas transmission pipeline, multiple gas control valves, multiple charging interfaces and a control unit. The charging cabinet body is provided with multiple charging compartments. The horizontal temperature sensor and the vertical temperature sensor are both installed on the inner wall of the charging compartment. The sensing direction of the horizontal temperature sensor is perpendicular to the sensing direction of the vertical temperature sensor. The multiple gas control valves are located in the multiple charging compartments one by one. The gas transmission pipeline is connected with the fire extinguishing gas storage device and penetrates into the multiple charging compartments. The ends thereof are respectively connected with the multiple gas control valves. The multiple charging interfaces are installed in the charging compartments one by one and are respectively electrically connected to the charging power supply. The control unit includes a main board. The horizontal temperature sensor, the vertical temperature sensor, the multiple gas control valves and the multiple charging interfaces are all electrically connected to the main board.

2. A battery charging cabinet with automatic detection of charging temperature and fire extinguishing and explosion prevention according to claim 1, characterized in that: The charging cabinet body is also provided with a first storage slot and a second storage slot, the first storage slot is located above the second storage slot, the first storage slot and the second storage slot are both located on one side of the plurality of charging compartments, the mainboard is installed in the first storage slot, and the fire extinguishing gas storage device is installed in the second storage slot.

3. A battery charging cabinet with automatic detection of charging temperature and fire extinguishing and explosion prevention according to claim 1, characterized in that: The main board includes a PCB board, a processor, a relay, an RS-485 interface, a switch drive circuit and a battery. The processor, relay, RS-485 interface, switch drive circuit and battery are all integrated and installed on the PCB board. The relay, RS-485 interface, switch drive circuit, battery, horizontal temperature sensor, vertical temperature sensor and gas control valve are all electrically connected to the processor.

4. A battery charging cabinet with automatic detection of charging temperature and fire extinguishing and explosion prevention according to claim 1, characterized in that: The horizontal temperature sensor includes a first horizontal temperature sensor and a second horizontal temperature sensor, the first horizontal temperature sensor and the second horizontal temperature sensor are arranged opposite to each other on the left and right, and the vertical temperature sensor is fixedly installed on the top wall of the charging bin. The number of the first horizontal temperature sensor, the second horizontal temperature sensor and the vertical temperature sensor is the same and corresponds to the number of the charging bins.

5. A battery charging cabinet capable of automatically detecting charging temperature and extinguishing fire and explosion according to claim 4, characterized in that: The first horizontal temperature sensor, the second horizontal temperature sensor and the vertical temperature sensor are all pyroelectric infrared sensors.

6. A battery charging cabinet with automatic detection of charging temperature and fire extinguishing and explosion prevention according to claim 2, characterized in that: The fire extinguishing gas storage device includes a gas cylinder, a connector and an external component. The gas cylinder is installed in the second storage groove. One end of the connector is connected to the gas cylinder, and the other end is connected to the gas pipeline. The external component is connected to the connector.

7. A battery charging cabinet capable of automatically detecting charging temperature and extinguishing fire and explosion according to claim 6, characterized in that: The fire extinguishing gas storage device also includes a mechanical pressure gauge, which is embedded on the outer wall of the charging cabinet body and corresponds to the position of the gas storage cylinder. The mechanical pressure gauge is connected to the gas storage cylinder, and the gas storage cylinder is filled with fire extinguishing gas, which is one of heptafluoropropane, carbon dioxide or nitrogen.

8. The battery charging cabinet with automatic detection of charging temperature and fire extinguishing and explosion prevention according to claim 3 is characterized in that: The control unit also includes a display screen and an external communication antenna. The display screen and the external communication antenna are both connected to the processor signal. The external communication antenna is fixedly mounted on the outer wall of the charging cabinet body. The display screen is embedded on the outer wall of the charging cabinet body and corresponds to the position of the main board.

9. The battery charging cabinet with automatic detection of charging temperature and fire extinguishing and explosion prevention according to claim 3 is characterized in that: It also includes an audible and visual alarm, which is installed on the top of the charging cabinet body and is electrically connected to the processor.

10. A battery charging cabinet capable of automatically detecting charging temperature and extinguishing fire and explosion according to claim 1, characterized in that: The main body of the charging cabinet is assembled from an outer steel plate and an inner steel plate. The inner steel plate surrounds the charging compartment. The outer steel plate and the charging compartment and adjacent charging compartments are connected by support columns. The inner wall of the charging compartment is coated with an inner coating, which is a polytetrafluoroethylene coating. The outer steel plate is a rust-proof galvanized steel plate, and the inner steel plate is a galvanized steel plate.

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