CN217435550U - CTC power battery box pressure detection alarm system - Google Patents
CTC power battery box pressure detection alarm system Download PDFInfo
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- CN217435550U CN217435550U CN202221033369.9U CN202221033369U CN217435550U CN 217435550 U CN217435550 U CN 217435550U CN 202221033369 U CN202221033369 U CN 202221033369U CN 217435550 U CN217435550 U CN 217435550U
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Abstract
The utility model discloses a CTC power battery box pressure detection alarm system, including a plurality of pressure sensor that set up in CTC power battery box, pressure sensor is used for detecting CTC power battery box and produces pressure signal to electric core, its output connection control module, control module is connected with alarm system for control alarm system sends alarm information when detecting pressure signal and being greater than the settlement pressure threshold value. The utility model has the advantages that: the pressure data carried by the battery cell in the CTC battery pack box body is detected through a plurality of pressure sensors, and when the pressure data is abnormal, a user is timely alarmed to remind the user to process in time, so that safety accidents are avoided; meanwhile, abnormal data are sent to a platform of a manufacturer to be monitored, so that the manufacturer can conveniently know and safely detect and maintain in time.
Description
Technical Field
The utility model relates to a power battery safety inspection field, in particular to CTC power battery box pressure detection alarm system.
Background
With the development of new energy vehicles, in order to further improve the safety and economy of a battery system, a conventional battery system gradually develops toward a vehicle body bearing structure, and a battery upper cover plate is used as the vehicle body bearing structure. Because the CTC battery is used as a vehicle body bearing structure, certain pressure may be generated inside the battery box, when the pressure is abnormal or the pressure is abnormal due to collision and other extreme conditions, the support mechanism of the bearing capacity such as a battery box cover plate is often deformed, the deformation may cause the force acting on the internal battery cell, and the battery cell is deformed and short-circuited to cause safety risks, so that safety detection is required for the bearing type CTC battery pack, and the prior art lacks safety detection for the CTC battery pack.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a CTC power battery box pressure detection alarm system, mainly used detects the pressure safety who bears the weight of formula CTC battery, avoids the battery potential safety hazard that pressure caused unusually.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a CTC power battery box pressure detection alarm system, includes a plurality of pressure sensor that set up in CTC power battery box, pressure sensor is used for detecting CTC power battery box and produces pressure signal to electric core, and its output connection control module, control module is connected with alarm system for when detecting pressure signal and being greater than the settlement pressure threshold value control alarm system sends alarm information.
The pressure sensor is arranged on the battery core.
The alarm system comprises a user alarm subsystem and/or a maintenance monitoring subsystem, and is used for respectively sending alarm information to a user and/or a monitoring platform.
The user alarm subsystem comprises a vehicle-mounted alarm and/or a user terminal, and the output end of the control module is connected with the vehicle-mounted alarm and used for driving the vehicle-mounted alarm to send out a pressure abnormity alarm; the control module is in communication connection with the user terminal in a wireless communication mode to send pressure abnormity alarm.
The maintenance monitoring subsystem comprises a vehicle factory big data fault alarm diagnosis platform and is used for monitoring abnormal information of the vehicle battery by the vehicle factory.
The control module is implemented by a battery management system BMS.
And the control module and the user terminal adopt vehicle-mounted TBOX communication.
And the output end of the control module is connected with the whole vehicle high-pressure module and is used for forbidding high pressure on the whole vehicle high-pressure module when the pressure is abnormal.
The utility model has the advantages that: the pressure data carried by the battery cell in the CTC battery pack box body is detected through a plurality of pressure sensors, and when the pressure data is abnormal, a user is timely alarmed to remind the user to process in time, so that safety accidents are avoided; meanwhile, abnormal data are sent to a platform of a manufacturer for monitoring, so that the manufacturer can conveniently know and safely detect and maintain in time; meanwhile, the high voltage is forbidden when the pressure is abnormal, so that the safety is further ensured, and the safety risk caused by high-voltage electrification when the pressure is abnormal is prevented.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic diagram of a detection alarm system of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
To CTC battery package box as a part of vehicle overall structure and bear the certain pressure value of whole car automobile body, bear or collide the circumstances such as under, CTC battery package box can warp and cause the extrusion atress to the inside battery core of box, can influence the security of electric core, and in the detection control of battery among the prior art, only have the detection in the aspects such as temperature, voltage current, do not have the detection in the aspect of pressure, design a CTC power battery box pressure detection alarm system based on this application, concrete scheme is as follows:
a CTC power battery box body pressure detection alarm system comprises a plurality of pressure sensors arranged in a CTC power battery box body, wherein the pressure sensors are used for detecting pressure signals generated by the CTC power battery box body on a battery cell, and the output ends of the pressure sensors are connected with a control module; according to different pressure signals, the pressure of the cell reflects the safety of the cell, so that the reliability of the cell in the CTC battery box can be judged based on the pressure. The control module is connected with the alarm system and used for controlling the alarm system to send alarm information when the pressure signal is detected to be larger than the set pressure threshold value.
The pressure sensor is arranged on the battery cell, the arranged position can be calibrated according to the previous realization, the simulation calibration determines the arranged position, the stress of the battery cell is mainly detected through the pressure sensor on the positions, thereby the battery cell is monitored and detected safely and reliably, the positions on the battery cell corresponding to the upper cover plate of the CTC battery box body can be generally arranged, the main principle is that the battery box body is easy to deform when accidents such as collision occur, the battery cell position corresponding to the place where the battery cell is damaged and extruded can be caused, for example, CAE analysis is carried out, according to the pressure value carried by the whole vehicle body, the structural strength bearing capacity of the upper cover plate of the battery as a vehicle body bearing mechanism is analyzed, and deformation diagrams, deformation ranges and deformation under different loads and collision conditions are analyzed. And arranging pressure sensors at different positions of the battery cell arranged in the battery box according to the analysis conclusion.
The working principle of the alarm device is that the control module judges according to a detected pressure signal, when the pressure value is larger than a set pressure threshold value, the fact that the electric core in the box body is extruded is indicated, the situation that the pressure received by the electric core is abnormal at the moment is considered, and risks exist, therefore, the control module sends an alarm signal through driving the alarm system, stress detection and alarm of the electric core in the CTC battery box body are achieved, the safety of a battery is improved, and safety risks caused by the fact that the internal electric core is extruded or stressed too much are avoided.
In the present application, the alarm system comprises a user alarm subsystem and/or a maintenance monitoring subsystem for sending alarm information to a user and/or a monitoring platform, respectively. The user alarm subsystem comprises a vehicle-mounted alarm and/or a user terminal, and the output end of the control module is connected with the vehicle-mounted alarm and used for driving the vehicle-mounted alarm to send out a pressure abnormity alarm; the control module is in communication connection with the user terminal in a wireless communication mode to send pressure abnormity alarm. The control module gives an alarm of pressure abnormity to a user in the vehicle through the vehicle-mounted alarm or sends data to the user terminal through a wireless communication mode, and a pressure abnormity signal is obtained through the user terminal.
The user terminal comprises a mobile phone, a computer and wearable equipment and is used for receiving signals through the mobile phone, the computer, the wearable equipment and the like and alarming when pressure abnormity is acquired anytime and anywhere. The maintenance monitoring subsystem comprises a vehicle factory big data fault alarm diagnosis platform for monitoring abnormal information of vehicle batteries by a vehicle factory, and the platform is generally a server arranged in a 4S store or a vehicle factory and a host factory and used for monitoring and acquiring battery information of each sold vehicle so as to realize timely maintenance, processing and after-sale. Upload to the platform data is uploaded to a platform, such as a TSP platform, based on the onboard TBOX.
In order to save hardware cost in this application, can adopt on-vehicle device to realize some system functions, if control module can integrate in the BMS or adopt the BMS to realize, on-vehicle alarm can adopt the instrument to report to the police or the alarm of central control host computer. The alarm signal is sent to a mobile phone of a user or a platform of a car factory, and TBOX can be used for communication transmission.
In a preferred embodiment of the application, the output of control module is connected with whole car high voltage module for forbid whole car high voltage module high pressure when pressure is unusual, whole car high voltage module's output is connected to battery positive main relay or main negative relay, is used for controlling its high-voltage output who breaks off the battery when pressure is unusual, thereby the safety of protection vehicle, avoids the power battery to have the safety risk that high-voltage output high-voltage electricity produced under the safety risk when pressure is unusual. The whole vehicle high-voltage module can be a BMS or vehicle high-voltage control module.
As shown in fig. 1, the present application adopts the vehicle-mounted device to the maximum extent to reduce the cost, and specifically includes: the position and the range of the acting force under the extreme condition are analyzed theoretically, and the pressure sensors are arranged at different positions of the battery cell in the battery box body according to the pre-analysis conclusion or are arranged by selecting the setting position empirically. The pressure sensor sends the detected pressure value to the BMS, the BSM is connected with the VCU through the CAN network, and the VCU drives the vehicle-mounted instrument to control the vehicle instrument to send out an alarm signal when the pressure is abnormal; meanwhile, the BMS is connected with the VCU through a can network, the VCU sends an alarm signal to terminal equipment such as a vehicle factory big data fault alarm diagnosis platform and a customer mobile phone through a TBOX (tunnel boring machine) of a vehicle, the remote alarm notification is realized, a user can be effectively notified through an instrument and the mobile phone, a host factory can be timely notified through the diagnosis platform, the maintenance and after-sale service are conveniently and quickly carried out, and the platform can be integrated in a TSP (Total suspended particulate) platform.
The pressure sensor can be arranged at the position where the pressure sensor in the battery box can be selected through empirical values, or the position where deformation is easy to determine through simulation and experiment is arranged, and through CAE analysis, the bearing capacity of the upper cover plate of the battery as a vehicle body bearing mechanism is analyzed according to the pressure value borne by the whole vehicle body, and deformation diagrams, deformation ranges and deformation under different load conditions are analyzed. And designing structural strength of the upper cover plate of the battery according to the analysis data, and designing and defining information such as the spatial distance from the upper cover plate to an electric core inside the battery pack. The battery package upper cover plate is simultaneously used as a vehicle body bearing mechanism and is stressed to generate certain deformation, and under the normal working condition, the deformation of the battery package upper cover plate and the deformation of the lower cover plate which are born can be solved through clearance design in the development process. However, in an extreme case, when abnormal pressure occurs during a collision, and the deformation amount of the upper cover of the battery pack serving as the support structure of the lower body exceeds a certain range, the deformation may exceed the design range, and a force is generated due to the deformation and acts on the battery cell, thereby causing risks such as deformation and short circuit of the battery cell.
Therefore, the pressure inside the battery pack is detected in real time through the pressure sensor. Pressure sensor detects the pressure value and surpasss certain threshold value, and the deformation volume that a certain position of box corresponds at this moment surpasss a definite value, shows to be about to causing pressure to probably receive the harm to electric core this moment, and pressure sensor sends the pressure value of gathering to BMS, BMS system feedback alarm information, reminds the user in time to overhaul, adopts the instrument to send out the troubleshooting warning in the car, and the car is outer through sending the customer cell-phone and reminding, sends and give whole car factory data analysis and remind the customer in time to overhaul.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (8)
1. A CTC power battery box pressure detection alarm system is characterized in that: the automatic control system comprises a plurality of pressure sensors arranged in a CTC power battery box body, wherein the pressure sensors are used for detecting pressure signals generated by the CTC power battery box body on a battery cell, the output end of the pressure sensors is connected with a control module, and the control module is connected with an alarm system and is used for controlling the alarm system to send alarm information when detecting that the pressure signals are larger than a set pressure threshold value.
2. The CTC power battery box pressure detection alarm system as recited in claim 1, wherein: the pressure sensor is arranged on the battery core.
3. The CTC power battery box pressure detection alarm system as recited in claim 1, wherein: the alarm system comprises a user alarm subsystem and/or a maintenance monitoring subsystem, and is used for respectively sending alarm information to a user and/or a monitoring platform.
4. The CTC power battery box pressure detection alarm system as recited in claim 3, wherein: the user alarm subsystem comprises a vehicle-mounted alarm and/or a user terminal, and the output end of the control module is connected with the vehicle-mounted alarm and used for driving the vehicle-mounted alarm to send out a pressure abnormity alarm; the control module is in communication connection with the user terminal in a wireless communication mode to send pressure abnormity alarm.
5. The CTC power battery box pressure detection alarm system as recited in claim 3, wherein: the maintenance monitoring subsystem comprises a vehicle factory big data fault alarm diagnosis platform and is used for monitoring abnormal information of the vehicle battery by the vehicle factory.
6. The CTC power battery box pressure detection alarm system as recited in any one of claims 1-5, wherein: the control module is implemented by a battery management system BMS.
7. The CTC power battery box pressure detection alarm system as recited in claim 4, wherein: and the control module and the user terminal adopt vehicle-mounted TBOX communication.
8. The CTC power battery box pressure detection alarm system as recited in claim 1, wherein: and the output end of the control module is connected with the whole vehicle high-pressure module and is used for forbidding high pressure on the whole vehicle high-pressure module when the pressure is abnormal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221033369.9U CN217435550U (en) | 2022-04-29 | 2022-04-29 | CTC power battery box pressure detection alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221033369.9U CN217435550U (en) | 2022-04-29 | 2022-04-29 | CTC power battery box pressure detection alarm system |
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| Publication Number | Publication Date |
|---|---|
| CN217435550U true CN217435550U (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221033369.9U Active CN217435550U (en) | 2022-04-29 | 2022-04-29 | CTC power battery box pressure detection alarm system |
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- 2022-04-29 CN CN202221033369.9U patent/CN217435550U/en active Active
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