Low-cost battery management board capable of detecting battery PACK fan fault

Abstract

The invention relates to the technical field of battery management boards, in particular to a low-cost battery management board capable of detecting battery PACK fan faults. The technical problems are that when a battery management board is used, parameters of voltage, current, temperature and the like of a battery are generally and mainly concerned, state detection of the interior of a battery PACK and other components is not directly designed, a protection function is mainly realized by depending on hardware, and advanced data analysis and fault early warning are lacked; according to the technical scheme, the low-cost battery management board capable of detecting the fault of the battery PACK fan comprises a data analysis module; compared with a traditional battery management board, the battery management board generally does not directly relate to state detection of the interior of a battery PACK and other components, mainly depends on hardware to realize a protection function, and lacks advanced data analysis and fault early warning. Besides the parameters of the battery, whether the battery PACK fan breaks down or not can be detected, and comprehensive monitoring and protection of the battery PACK are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery management boards, and in particular to a low-cost battery management board capable of detecting a battery PACK fan failure. Background Art

[0002] The battery management board is mainly responsible for the management and control of the battery pack to ensure that the battery maintains a safe, efficient and stable operating state during the charging and discharging process. The battery management board is usually composed of a microcontroller, a voltage monitoring circuit, a temperature monitoring circuit, a current measurement circuit, a protection circuit, a balancing circuit and a communication interface. Its working principle is based on the battery management chip and related control circuits. Through real-time monitoring and data analysis, the battery pack is accurately controlled and managed. However, when using the battery management board, it generally focuses on the voltage, current, temperature and other parameters of the battery itself, and does not directly involve the status detection of the battery PACK and other components. It mainly relies on hardware to implement protection functions and lacks advanced data analysis and fault warning. Summary of the invention

[0003] In order to overcome the problem that when using the battery management board, people generally focus on the voltage, current, temperature and other parameters of the battery itself, do not directly involve the status detection of the battery PACK and other components, mainly rely on hardware to implement protection functions, and lack advanced data analysis and fault warning.

[0004] The technical solution of the present invention is: a low-cost battery management board capable of detecting battery PACK fan failure, comprising:

[0005] Battery monitoring module: used to collect and monitor the voltage and temperature of each battery cell in the PACK in real time;

[0006] Fan monitoring module: used to monitor the fan status in real time;

[0007] Data transmission module: used to transmit the data collected and monitored by the battery monitoring module and the fan monitoring module;

[0008] Data preprocessing module: used to preprocess the data received from the data transmission module;

[0009] Data analysis module: used to analyze and calculate the data collected and monitored by the battery monitoring module and the fan monitoring module;

[0010] Data storage module: used to store and back up the data collected and monitored by the battery and fan, as well as the data analyzed and calculated;

[0011] Data feedback module: used to regularly generate test reports to provide feedback to staff.

[0012] Preferably, the battery monitoring module is provided with multiple sets of sensors for detecting the real-time status of the battery PACK, such as voltage, current, temperature and other data, and the sensors can be directly connected to the analog-to-digital converter interface.

[0013] Preferably, the fan monitoring module includes multiple groups of rotation speed sensors, and multiple groups of rotation speed sensors are provided. The rotation speed sensors are used to detect the rotation speed of the fan and convert the magnetic field changes into electrical signals for transmission.

[0014] Preferably, the data transmission module is connected to the input port of the data preprocessing module, and the data transmission module includes a 3G information transmission module, a 4G information transmission module and a Bluetooth transmission module. The data transmission module makes an intelligent judgment on the signal strength, and uses the 3G information transmission module, the 4G information transmission module and the Bluetooth transmission module to establish a stable signal transmission chain, and transmits the data collected and monitored by the battery monitoring module and the fan monitoring module to the data preprocessing module.

[0015] Preferably, the data preprocessing module is used to preliminarily process the monitoring data of the battery monitoring module and the fan monitoring module transmitted by the data transmission module, remove interference data in the collected data, and transmit the preprocessed data to the data analysis module.

[0016] Preferably, the data analysis module is responsible for the control logic of the entire system, analyzes and calculates the monitoring information preprocessed by the data preprocessing module, can perform detailed analysis and evaluation of the working status of the battery and fan, and judge whether the battery and fan are in normal working condition by comparing the status of the battery and fan with the standard value.

[0017] Preferably, when the data analysis module analyzes the battery and fan status, the following steps are included:

[0018] S11: After the system is powered on, the data analysis module is initialized, including configuring each sensor interface, setting alarm thresholds, etc.;

[0019] S12: The data analysis module monitors the battery status and fan status in real time through sensors;

[0020] S13: judging whether the battery and the fan are in a normal state according to a preset threshold;

[0021] S14: Once a fault is detected, the alarm circuit is activated immediately and appropriate protective measures are taken according to the type of fault.

[0022] Preferably, through the data analysis module, the operating status of the battery PACK fan can be monitored in real time, and these parameters can be analyzed in real time, so that abnormal conditions of the fan can be discovered in time, thereby early warning of potential faults, and effectively avoiding safety accidents such as battery overheating and performance degradation caused by fan failure, thereby protecting the stability and safety of the entire battery system.

[0023] Preferably, the data storage module includes an information resource management submodule and a cloud storage terminal, which integrates the analyzed data of the battery monitoring module and the fan monitoring module, manages and stores the integrated data, and backs up the data storage to the cloud.

[0024] Preferably, when the data storage module backs up and stores data, the following method is included:

[0025] A11: Create a master document based on the corresponding date on the cloud platform;

[0026] A12: Create classification sub-documents in the main document based on the classification information;

[0027] A13: compress and encrypt the analyzed battery monitoring module and fan monitoring module data for backup;

[0028] A14: Put the compressed and encrypted battery monitoring module and fan monitoring module data into a sub-document.

[0029] Preferably, by using the data storage module to permanently save various data required by the system, the analyzed battery monitoring module and fan monitoring module data can be effectively backed up, and the data storage module can effectively improve the response speed and processing efficiency of the system.

[0030] Preferably, the data feedback module is used to regularly feedback the data information collected by the battery monitoring module and the fan monitoring module according to the set time, and the system can be regularly upgraded and maintained to facilitate the staff to check the battery PACK status.

[0031] Beneficial effects of the present invention:

[0032] 1. Compared with traditional battery management boards, which generally focus on the voltage, current, temperature and other parameters of the battery itself, and do not directly involve the status detection of the battery PACK and other components, mainly rely on hardware to achieve protection functions, and lack advanced data analysis and fault warning. This battery management board sets up a data analysis module. In addition to the battery's own parameters, it can also detect whether the battery PACK fan is faulty, thus realizing comprehensive monitoring and protection of the battery PACK;

[0033] 2. Through the data analysis module, the operating status of the battery PACK fan can be monitored in real time, and these parameters can be analyzed in real time, so as to promptly detect abnormal conditions of the fan, thereby early warning of potential failures, and effectively avoid safety accidents such as battery overheating and performance degradation caused by fan failure, thereby protecting the stability and safety of the entire battery system;

[0034] 3. By using the data storage module to permanently save various data required by the system, the analyzed battery monitoring module and fan monitoring module data can be effectively backed up. The data storage module can effectively improve the response speed and processing efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 What is shown is a schematic diagram of a first BMU circuit topology of the present invention;

[0036] Figure 2 Shown is a schematic diagram of the second BMU circuit topology of the present invention;

[0037] Figure 3 Shown is a schematic diagram of the AFE chip voltage and temperature sampling circuit of the present invention;

[0038] Figure 4 Shown is a schematic diagram of the AC fan current transformer detection circuit of the present invention;

[0039] Figure 5 Shown is a schematic diagram of the AC fan current Hall sensor detection circuit of the present invention. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] See also Figure 1-5 The present invention provides an embodiment: a low-cost battery management board capable of detecting a battery PACK fan failure, comprising:

[0042] Battery monitoring module: used to collect and monitor the voltage and temperature of each battery cell in the PACK in real time;

[0043] Fan monitoring module: used to monitor the fan status in real time;

[0044] Data transmission module: used to transmit the data collected and monitored by the battery monitoring module and the fan monitoring module;

[0045] Data preprocessing module: used to preprocess the data received from the data transmission module;

[0046] Data analysis module: used to analyze and calculate the data collected and monitored by the battery monitoring module and the fan monitoring module;

[0047] Data storage module: used to store and back up the data collected and monitored by the battery and fan, as well as the data analyzed and calculated;

[0048] Data feedback module: used to regularly generate test reports to provide feedback to staff.

[0049] Preferably, the battery monitoring module is provided with multiple sets of sensors for detecting the real-time status of the battery PACK, such as voltage, current, temperature and other data, and the sensors can be directly connected to the analog-to-digital converter interface.

[0050] Preferably, the fan monitoring module includes multiple groups of rotation speed sensors, and multiple groups of rotation speed sensors are provided. The rotation speed sensors are used to detect the rotation speed of the fan and convert the magnetic field changes into electrical signals for transmission.

[0051] Preferably, the data transmission module is connected to the input port of the data preprocessing module, and the data transmission module includes a 3G information transmission module, a 4G information transmission module and a Bluetooth transmission module. The data transmission module makes an intelligent judgment on the signal strength, and uses the 3G information transmission module, the 4G information transmission module and the Bluetooth transmission module to establish a stable signal transmission chain, and transmits the data collected and monitored by the battery monitoring module and the fan monitoring module to the data preprocessing module.

[0052] Preferably, the data preprocessing module is used to preliminarily process the monitoring data of the battery monitoring module and the fan monitoring module transmitted by the data transmission module, remove interference data in the collected data, and transmit the preprocessed data to the data analysis module.

[0053] Preferably, the data analysis module is responsible for the control logic of the entire system, analyzes and calculates the monitoring information preprocessed by the data preprocessing module, can perform detailed analysis and evaluation of the working status of the battery and fan, and judge whether the battery and fan are in normal working condition by comparing the status of the battery and fan with the standard value.

[0054] Preferably, when the data analysis module analyzes the battery and fan status, the following steps are included:

[0055] S11: After the system is powered on, the data analysis module is initialized, including configuring each sensor interface, setting alarm thresholds, etc.;

[0056] S12: The data analysis module monitors the battery status and fan status in real time through sensors;

[0057] S13: judging whether the battery and the fan are in a normal state according to a preset threshold;

[0058] S14: Once a fault is detected, the alarm circuit is activated immediately and appropriate protective measures are taken according to the type of fault.

[0059] Preferably, through the data analysis module, the operating status of the battery PACK fan can be monitored in real time, and these parameters can be analyzed in real time, so that abnormal conditions of the fan can be discovered in time, thereby early warning of potential faults, and effectively avoiding safety accidents such as battery overheating and performance degradation caused by fan failure, thereby protecting the stability and safety of the entire battery system.

[0060] Preferably, the data storage module includes an information resource management submodule and a cloud storage terminal, which integrates the analyzed data of the battery monitoring module and the fan monitoring module, manages and stores the integrated data, and backs up the data storage to the cloud.

[0061] Preferably, when the data storage module backs up and stores data, the following method is included:

[0062] A11: Create a master document based on the corresponding date on the cloud platform;

[0063] A12: Create classification sub-documents in the main document based on the classification information;

[0064] A13: compress and encrypt the analyzed battery monitoring module and fan monitoring module data for backup;

[0065] A14: Put the compressed and encrypted battery monitoring module and fan monitoring module data into a sub-document.

[0066] Preferably, by using the data storage module to permanently save various data required by the system, the analyzed battery monitoring module and fan monitoring module data can be effectively backed up, and the data storage module can effectively improve the response speed and processing efficiency of the system.

[0067] Preferably, the data feedback module is used to regularly feedback the data information collected by the battery monitoring module and the fan monitoring module according to the set time, and the system can be regularly upgraded and maintained to facilitate the staff to check the battery PACK status.

[0068] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A low-cost battery management board capable of detecting battery PACK fan failure; characterized in that: Included are: Battery monitoring module: used to collect and monitor the voltage and temperature of each battery cell in the PACK in real time; Fan monitoring module: used to monitor the fan status in real time; Data transmission module: used to transmit the data collected and monitored by the battery monitoring module and the fan monitoring module; Data preprocessing module: used to preprocess the data received from the data transmission module; Data analysis module: used to analyze and calculate the data collected and monitored by the battery monitoring module and the fan monitoring module; Data storage module: used to store and back up the data collected and monitored by the battery and fan, as well as the data analyzed and calculated; Data feedback module: used to regularly generate test reports to provide feedback to staff.

2. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 1, characterized in that: The battery monitoring module is equipped with multiple sets of sensors for detecting the real-time status of the battery PACK, such as voltage, current, temperature and other data. The sensors can be directly connected to the analog-to-digital converter interface.

3. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 2, characterized in that: The fan monitoring module includes multiple groups of speed sensors. Multiple groups of speed sensors are provided. The speed sensors are used to detect the speed of the fan and convert the magnetic field changes into electrical signals for transmission.

4. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 3, characterized in that: The data transmission module is connected to the input port of the data preprocessing module. The data transmission module includes a 3G information transmission module, a 4G information transmission module and a Bluetooth transmission module. The data transmission module makes an intelligent judgment on the signal strength, uses the 3G information transmission module, the 4G information transmission module and the Bluetooth transmission module to establish a stable signal transmission chain, and transmits the data collected and monitored by the battery monitoring module and the fan monitoring module to the data preprocessing module.

5. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 4, characterized in that: The data preprocessing module is used to preliminarily process the monitoring data of the battery monitoring module and the fan monitoring module transmitted by the data transmission module, remove the interference data in the collected data, and transmit the preprocessed data to the data analysis module.

6. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 5, characterized in that: The data analysis module is responsible for the control logic of the entire system. It analyzes and calculates the monitoring information preprocessed by the data preprocessing module. It can perform detailed analysis and evaluation on the working status of the battery and fan. By comparing the status of the battery and fan with the standard value, it can determine whether the battery and fan are in normal working condition.

7. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 6, characterized in that: When the data analysis module analyzes the battery and fan status, the following steps are included: S11: After the system is powered on, the data analysis module is initialized, including configuring each sensor interface, setting alarm thresholds, etc.; S12: The data analysis module monitors the battery status and fan status in real time through sensors; S13: judging whether the battery and the fan are in a normal state according to a preset threshold; S14: Once a fault is detected, the alarm circuit is activated immediately and appropriate protective measures are taken according to the type of fault.

8. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 7, characterized in that: The data storage module includes an information resource management submodule and a cloud storage terminal. It integrates the analyzed data of the battery monitoring module and the fan monitoring module, manages and stores the integrated data, and backs up the data storage to the cloud.

9. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 8, characterized in that: When the data storage module backs up and stores data, the following methods are included: A11: Create a master document based on the corresponding date on the cloud platform; A12: Create classification sub-documents in the main document based on the classification information; A13: compress and encrypt the analyzed battery monitoring module and fan monitoring module data for backup; A14: Put the compressed and encrypted battery monitoring module and fan monitoring module data into a sub-document.

10. A low-cost battery management board capable of detecting battery PACK fan failure according to claim 9, characterized in that: The data feedback module is used to regularly feedback the data information collected by the battery monitoring module and the fan monitoring module according to the set time. The system can be upgraded and maintained regularly to facilitate the staff to check the battery PACK status.

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