Portable fire information monitoring device for energy storage lithium battery box

Abstract

The utility model discloses a portable fire information monitoring device for an energy storage lithium battery box, which comprises a monitoring box body provided with a gas analysis chamber; the gas suction module is borne on the monitoring box body and is used for sucking gas in the battery box into the gas analysis chamber; the gas analysis module is arranged in the gas analysis chamber, comprises a sensor module and is used for collecting gas state data; the processor module is connected with the gas analysis module and is used for acquiring gas state data and comparing the gas state data with preset parameters to generate a comparison result; a display module; a storage module; and a power supply module. The device can obtain the gas data in the battery box in real time, improves the real-time performance and convenience of monitoring, provides convenience for installation, debugging and testing processes, is small and flexible, and is very convenient to move and deploy due to the fact that the device is externally arranged in the battery pack and is not limited by space.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack monitoring, in particular to a portable fire information monitoring device for an energy storage lithium battery box. Background Art

[0002] The nitrogen fire inerting protection system is one of the fire protection systems currently used in battery boxes of electric vehicles or energy storage power stations. Its protection process is: by filling the battery box with high-purity nitrogen to isolate oxygen, it can not only reduce the probability of thermal runaway before the battery box thermal runaway, but also quickly suppress the thermal runaway of the battery box after it occurs, achieving a higher level of safety protection. Nitrogen will not damage the internal components of the battery box. It can be continuously generated and supplemented through the nitrogen production device, without the need to replace or supplement the fire extinguishing agent, and can provide real-time protection throughout the life cycle.

[0003] Nitrogen is controlled by the pressure sensor built into the PACK box, and the upper limit of the nitrogen filling pressure is controlled. The nitrogen and other combustible gases in the PACK box are discharged and replaced through natural escape or pressure relief port, ensuring the nitrogen inerting environment inside the PACK box. Since the internal detector of the PACK box is not equipped with an oxygen concentration sensor and a combustible gas detector, the concentration of oxygen inside the box cannot be monitored in real time after nitrogen is filled into the PACK, making it difficult to ensure that the battery cell is in a safe environment.

[0004] At present, it usually refers to pre-embedding oxygen concentration sensors and combustible gas sensors inside the PACK box in advance during the experiment and testing phase, and deriving the appropriate single nitrogen filling time and nitrogen filling interval time through big data accumulation and analysis. However, this method cannot be applied to data collection of batch products, and the collected data needs to be parsed by the host computer after extraction before it can be read and displayed, and the data collection is not intuitive. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a portable fire information monitoring device for an energy storage lithium battery box, which is convenient for monitoring.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] The present disclosure provides a portable fire information monitoring device for an energy storage lithium battery box, comprising:

[0008] A monitoring box, wherein the monitoring box is provided with a gas analysis chamber;

[0009] A gas extraction module, carried by the monitoring box, and used to extract the gas in the battery box to the gas analysis chamber;

[0010] A gas analysis module disposed in the gas analysis chamber, the gas analysis module comprising a sensor module for collecting gas state data;

[0011] A processor module, the processor module is connected to the gas analysis module and is used to obtain gas state data and compare the gas state data with a predetermined parameter to generate a comparison result;

[0012] A display module, connected to the processor module and used to display the gas state data and / or comparison results;

[0013] a storage module connected to the processor module and used to store the gas state data and / or comparison results; and

[0014] The power module is used to provide operating voltage.

[0015] To implement the above technical solution, during monitoring, the exhaust module is connected to the gas analysis chamber and the battery box, and the gas in the battery box is extracted into the gas analysis chamber through the suction module. The sensor module on the gas analysis module can collect various information of the extracted gas to form gas state data, and then the gas state data is analyzed and compared by the processor module, and the gas state data and / or comparison results are displayed in real time through the display module, so that users can obtain the gas data in the battery box in time, improve the real-time and convenience of monitoring, and provide convenience for installation, debugging and testing processes; and the monitoring device of the present application is small and flexible. Since it is external to the battery pack, it is not restricted by space limitations, and mobile deployment is also extremely convenient.

[0016] In some exemplary embodiments, the sensor module includes: an oxygen concentration sensor, a combustible gas sensor, a temperature sensor and a pressure sensor, and the gas state data includes: oxygen concentration, combustible gas content, temperature value and air pressure value.

[0017] In some exemplary embodiments, the processor module is further connected to a communication module, and the communication module is used to connect to a nitrogen fire inerting protection system.

[0018] By implementing the above technical solution and connecting the communication module with the nitrogen fire inerting protection system, the working parameters of the protection system can be collected, so that the real-time monitoring effect is better.

[0019] In some exemplary embodiments, the processor module is also connected to a key module, and the key module is used for opening and closing control and parameter setting.

[0020] The above technical solution is implemented to facilitate human-computer interaction through the key module.

[0021] In some exemplary embodiments, the power module includes:

[0022] Rechargeable lithium battery for direct supply of operating voltage; and,

[0023] The charging interface group is used to connect to an external power supply unit to provide working voltage.

[0024] The implementation of the above technical solution can meet the working power requirements of various application scenarios, making the application scope of the device wider.

[0025] In some exemplary embodiments, the power module is further connected to a charging management module, and the charging management module is used to perform voltage conversion and charging protection.

[0026] To implement the above technical solution, the charging management module is used to perform voltage conversion and charging protection, thereby achieving stable charging of the device and preventing overcharging.

[0027] In summary, compared with the prior art, the utility model has the following beneficial effects:

[0028] The utility model embodiment provides a portable fire information monitoring device for an energy storage lithium battery box, comprising: a monitoring box body, on which a gas analysis chamber is provided; a gas extraction module, carried by the monitoring box body and used to draw the gas in the battery box to the gas analysis chamber; a gas analysis module arranged in the gas analysis chamber, the gas analysis module comprising a sensor module, used to collect gas state data; a processor module, the processor module is connected to the gas analysis module, used to obtain gas state data and compare the gas state data with predetermined parameters to generate a comparison result; a display module, connected to the processor module, used to display the gas state data and / or comparison results; a storage module, connected to the processor module, used to store the gas state data and / or comparison results; and a power supply module, used to provide an operating voltage. During monitoring, the exhaust module is connected to the gas analysis chamber and the battery box, and the gas in the battery box is extracted into the gas analysis chamber through the suction module. The sensor module on the gas analysis module can collect various information of the extracted gas to form gas state data. The gas state data is then analyzed and compared through the processor module, and the gas state data and / or comparison results are displayed in real time through the display module, so that users can obtain the gas data in the battery box in time, improve the real-time and convenience of monitoring, and provide convenience for installation, debugging and testing processes. In addition, the monitoring device of the present application is small and flexible. Since it is externally placed on the battery pack, it is not restricted by space limitations, and mobile deployment is also extremely convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a functional structure diagram of an embodiment of the utility model.

[0030] Figure 2 It is a schematic structural diagram of an embodiment of the utility model.

[0031] The numbers and letters in the figure represent the corresponding component names:

[0032] 10. Monitoring box; 20. Display module; 30. Key module. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 to Figure 2 As shown, the utility model provides an embodiment of the present disclosure to provide a portable fire information monitoring device for an energy storage lithium battery box, comprising: a monitoring box 10, on which a gas analysis chamber is provided; a vacuum module, carried by the monitoring box 10, for sucking the gas in the battery box into the gas analysis chamber; a gas analysis module arranged in the gas analysis chamber, the gas analysis module comprising a sensor module for collecting gas state data; a processor module, the processor module is connected to the gas analysis module, for acquiring gas state data and comparing the gas state data with predetermined parameters to generate a comparison result; a display module 20, connected to the processor module, for displaying gas state data and / or comparison results; a storage module, connected to the processor module, for storing gas state data and / or comparison results; and a power supply module for providing an operating voltage.

[0035] Specifically, the monitoring box 10 is the installation base of each module, and the gas analysis chamber can be a sealable box body arranged in the monitoring box 10. The exhaust module extracts the inspection gas from the battery box and injects it into the gas analysis chamber, and the gas analysis chamber has a certain gas storage capacity so as to store a certain amount of gas for the gas analysis module to collect and analyze data.

[0036] The exhaust module includes an exhaust pump and an air pipe group. The air pipe group may include an exhaust pipe connected to the battery box, an air supply pipe connected to the gas analysis chamber, and an air outlet pipe connected to the outside of the monitoring box 10. Electric control valves may be provided on the exhaust pipe, the air supply pipe and the air outlet pipe to control the inlet and outlet gas. During monitoring, the exhaust pipe and the air supply pipe are opened, and the air outlet pipe is closed, thereby realizing the gas storage function of the gas analysis chamber. After the monitoring is completed, the air outlet pipe is opened to release air so as to carry out the next gas monitoring process.

[0037] The sensor module includes: oxygen concentration sensor, combustible gas sensor, temperature sensor and pressure sensor. In actual application, corresponding sensors can also be set according to monitoring needs. For example, a nitrogen concentration sensor can also be set to detect the nitrogen concentration contained in the extracted gas. Correspondingly, the gas state data includes: oxygen concentration, combustible gas content, temperature value and air pressure value; of course, the gas analysis module can also include a microprocessor, which is connected to the sensor module, can pre-process the gas state data, and send the data to the processor module.

[0038] The processor module is arranged in the monitoring box 10, and is used to analyze and process the gas state data. At the same time, a predetermined parameter can be preset in the processor module as a comparison benchmark. If the predetermined parameter is exceeded, the comparison result can be displayed as an alarm message through the display module 20. The processor module can include, for example, a microcontroller unit (MCU), a central processing unit (CPU), a microprocessor (microprocessor), a digital signal processor (DSP), a programmable controller, a programmable logic device (PLD) or other similar devices or a combination of these devices, and the present invention is not limited. In addition, in some embodiments, the functions of the processor module can be implemented by multiple coding programs, which are stored in a storage medium and executed by the processor module. Alternatively, in some embodiments, the functions of the processor module can be implemented by one or more circuits, and the present invention does not limit the functions of the control device to be implemented in software or hardware.

[0039] The display module 20 can preferably adopt an OLED display screen, which can display gas state data and / or comparison results according to the configuration. The storage module can be an existing storage device such as a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), etc. The storage module can be used to store gas state data and / or comparison results, and can also be used to store configuration parameters, mode parameters, etc. of the operation of the storage device.

[0040] The processor module is also connected to a communication module, which is used to connect to the nitrogen fire inerting protection system. The communication module can use a CAN interface to directly access the CAN communication network of the battery box nitrogen fire inerting protection system through the CAN interface. It is used to send and receive CAN communication messages without using a communication CAN card, and by collecting the working parameters of the protection system, the real-time monitoring effect can be better.

[0041] Furthermore, the processor module is also connected to a button module 30, which is used for opening and closing control and parameter setting. The button module 30 facilitates human-computer interaction, such as realizing self-test, mode configuration and other functions. At the same time, the button module 30 can also be used to control the operation and stop of the exhaust module, and can also realize the setting of the exhaust time and exhaust volume of the exhaust module.

[0042] The power module includes: a rechargeable lithium battery for directly providing a working voltage; and a charging interface group for connecting to an external power supply unit to provide a working voltage. The charging interface group may include a 5V power interface and a DC9V~32V power interface. The 5V power interface may be used to connect to a mobile power source to obtain power. The DC9V~32V power interface may be designed as a wiring terminal, which may be powered by 12V or 24V from an electric vehicle power supply module and an energy storage power station BMS, thereby being able to meet the working power requirements of various application scenarios, making the device more applicable and having stronger endurance expansion capabilities.

[0043] The power module is also connected to a charging management module, which is used for voltage conversion and charging protection. The charging management module can convert the external DC9V~32V voltage to provide a suitable working voltage for the device, and can also provide energy for charging the rechargeable lithium battery. When an external power supply is connected, the charging management module performs voltage conversion and charging protection to achieve stable charging of the device and prevent overcharging.

[0044] During monitoring, the exhaust module is connected to the gas analysis chamber and the battery box, and the gas in the battery box is extracted into the gas analysis chamber through the suction module. The sensor module on the gas analysis module can collect various information of the extracted gas to form gas state data. The gas state data is then analyzed and compared through the processor module, and the gas state data and / or comparison results are displayed in real time through the display module 20, so that users can obtain the gas data in the battery box in time, improve the real-time and convenience of monitoring, and provide convenience for installation, debugging and testing processes; and the monitoring device of the present application is small and flexible. Since it is external to the battery pack, it is not subject to space limitations, and mobile deployment is also extremely convenient.

[0045] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. A portable fire information monitoring device for an energy storage lithium battery box, characterized in that: include: A monitoring box, wherein the monitoring box is provided with a gas analysis chamber; A gas extraction module, carried by the monitoring box, and used to extract the gas in the battery box to the gas analysis chamber; A gas analysis module disposed in the gas analysis chamber, the gas analysis module comprising a sensor module for collecting gas state data; A processor module, the processor module is connected to the gas analysis module and is used to obtain gas state data and compare the gas state data with a predetermined parameter to generate a comparison result; A display module, connected to the processor module and used to display the gas state data and / or comparison results; a storage module connected to the processor module and used to store the gas state data and / or comparison results; and The power module is used to provide operating voltage.

2. The portable fire information monitoring device for the energy storage lithium battery box according to claim 1 is characterized in that: The sensor module includes: an oxygen concentration sensor, a combustible gas sensor, a temperature sensor and a pressure sensor, and the gas state data includes: oxygen concentration, combustible gas content, temperature value and air pressure value.

3. The portable fire information monitoring device for the energy storage lithium battery box according to claim 1 or 2, characterized in that: The processor module is also connected to a communication module, and the communication module is used to connect to a nitrogen fire inerting protection system.

4. The portable fire information monitoring device for the energy storage lithium battery box according to claim 1 is characterized in that: The processor module is also connected to a key module, and the key module is used for opening and closing control and parameter setting.

5. The portable fire information monitoring device for the energy storage lithium battery box according to claim 1 is characterized in that: The power module comprises: Rechargeable lithium battery for direct supply of operating voltage; and, The charging interface group is used to connect to an external power supply unit to provide working voltage.

6. The portable fire information monitoring device for the energy storage lithium battery box according to claim 5 is characterized in that: The power supply module is also connected to a charging management module, and the charging management module is used for voltage conversion and charging protection.

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