Plug-and-play type electric vehicle power battery fault diagnosis device

Abstract

The utility model discloses a plug-and-play fault diagnosis device for a power battery of an electric automobile. The plug-and-play fault diagnosis device comprises a battery fault diagnosis seat and a battery fault diagnosis system, the battery fault diagnosis seat comprises a circular structure, the front end of the battery fault diagnosis seat is provided with an insertion groove, and the insertion groove is internally provided with a battery input and output charging interface, a communication CANH interface, a connection signal interface and a communication CANL interface. The communication CANH interface, the connection signal interface and the communication CANL interface are all located on the upper side of the battery input and output charging interface. The plug-and-play fault diagnosis device for the power battery of the electric vehicle can perform information interaction with a battery management system of a battery pack so as to perform fault diagnosis work on battery information.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle batteries, in particular to a plug-and-play type electric vehicle power battery fault diagnosis device. Background Technique

[0002] Electric vehicle batteries are divided into two categories: storage batteries and fuel cells. Storage batteries are suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries. Fuel cells are dedicated to fuel cell electric vehicles, including alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC), proton exchange membrane fuel cells (PEMFC), and direct methanol fuel cells (DMFC).

[0003] The existing electric vehicle batteries have the following defects:

[0004] The health status of the existing electric vehicle battery packs cannot be effectively monitored and fault diagnosed, so the batteries are prone to instability and accidents. Therefore, solutions are needed. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a plug-and-play type electric vehicle power battery fault diagnosis device to solve the problems raised in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions: A plug-and-play type electric vehicle power battery fault diagnosis device includes a battery fault diagnosis seat and a battery fault diagnosis system; the battery fault diagnosis seat has a circular shape structure, and an insertion groove is opened at the front end of the battery fault diagnosis seat. Battery input, output charging interfaces, communication CANH interface, connection signal interface, and communication CANL interface are opened inside the insertion groove, and the communication CANH interface, connection signal interface, and communication CANL interface are all located above the battery input and output charging interfaces.

[0009] Preferably, leakage holes are opened inside the insertion groove.

[0010] Preferably, the battery fault diagnosis system includes a battery, a DC / DC converter, a national standard communication interface, a national standard communication protocol, a fault diagnosis intelligent CPU, a Bluetooth data transmission module, and a mobile phone mini-program. The battery is respectively connected to the DC / DC converter and the fault diagnosis intelligent CPU. The DC / DC converter is connected to the national standard communication interface. The national standard communication interface is connected to the national standard communication protocol. The national standard communication protocol is connected to the fault diagnosis intelligent CPU. The fault diagnosis intelligent CPU is connected to the Bluetooth data transmission module. The Bluetooth data transmission module is connected to the mobile phone mini-program.

[0011] (III) Beneficial effects

[0012] The present utility model provides a plug-and-play type electric vehicle power battery fault diagnosis device, which has the following beneficial effects:

[0013] This plug-and-play type electric vehicle power battery fault diagnosis device interacts with the battery management system of the battery pack to obtain relevant data information of the battery pack. By comparing the obtained basic data of the battery pack with the big data model of the battery pack embedded in the system, the current health status and relevant fault points of the battery pack are judged, and at the same time, risk points are listed to predict the risks of future use of the battery pack. The entire device can exchange data with the intelligent mini-program embedded in the mobile phone through Bluetooth, transmit the vehicle battery pack data to the cloud, form a big data database, and at the same time establish the historical data of the same vehicle. Furthermore, a data source for data comparison is formed, which is convenient for more accurate data analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the battery fault diagnosis system of the present utility model.

[0016] In the figure, 1 is a battery fault diagnosis seat; 2 is a battery input / output charging interface; 3 is a communication CANH interface; 4 is a connection signal interface; 5 is a communication CANL interface; 6 is a leak hole; 7 is an insertion groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer toFigure 1-2 , an embodiment of the present utility model provides a technical solution: a plug-and-play electric vehicle power battery fault diagnosis device, including a battery fault diagnosis seat 1 and a battery fault diagnosis system;

[0019] The problem is solved as follows. The battery fault diagnosis seat 1 has a circular structure. At the front end of the battery fault diagnosis seat 1, an insertion groove 7 is provided. Inside the insertion groove 7, there are battery input and output charging interfaces 2, a communication CANH interface 3, a connection signal interface 4, and a communication CANL interface 5. The communication CANH interface 3, the connection signal interface 4, and the communication CANL interface 5 are all located above the battery input and output charging interface 2. When in use, the charging gun is inserted into the insertion groove 7 of the battery fault diagnosis seat 1, so that the charging gun is respectively docked with the battery input and output charging interfaces 2, the communication CANH interface 3, the connection signal interface 4, and the communication CANL interface 5, and then the purpose of detecting and transmitting battery information can be achieved.

[0020] Furthermore, a leakage hole 6 is provided inside the insertion groove 7. The leakage hole 6 in the insertion groove 7 is for facilitating the leakage of rainwater to prevent affecting charging.

[0021] Specifically, the battery fault diagnosis system includes a battery, a DC / DC converter, a national standard communication interface, a national standard communication protocol, a fault diagnosis intelligent CPU, a Bluetooth data transmission module, and a mobile phone terminal applet. The battery is respectively connected to the DC / DC converter and the fault diagnosis intelligent CPU. The DC / DC converter is connected to the national standard communication interface. The national standard communication interface is connected to the national standard communication protocol. The national standard communication protocol is connected to the fault diagnosis intelligent CPU. The fault diagnosis intelligent CPU is connected to the Bluetooth data transmission module. The Bluetooth data transmission module is connected to the mobile phone terminal applet. When in use, the battery information is processed by the fault diagnosis intelligent CPU, and then the fault diagnosis intelligent CPU sends the battery information to the national standard communication protocol and the Bluetooth data transmission module. The Bluetooth data transmission module sends the battery information to the mobile phone terminal applet. The DC / DC converter transforms the battery information and then conveys it to the national standard communication interface for output. Thus, when charging, the staff can detect the battery information.

[0022] Working principle: During operation, the charging gun is inserted into the insertion groove 7 of the battery fault diagnosis seat 1, so that the charging gun is respectively docked with the battery input and output charging interface 2, the communication CANH interface 3, the connection signal interface 4, and the communication CANL interface 5. Then, the purpose of detecting and transmitting battery information can be achieved. The battery information is processed by the fault diagnosis intelligent CPU, and then the fault diagnosis intelligent CPU sends the battery information to the national standard communication protocol and the Bluetooth data transmission module. The Bluetooth data transmission module sends the battery information to the mobile phone mini-program. The DC / DC converter transforms the battery information and then transmits it to the national standard communication interface for output. Thus, when charging, the staff can detect the battery information.

[0023] For the 1. battery fault diagnosis seat; 2. battery input and output charging interface; 3. communication CANH interface; 4. connection signal interface; 5. communication CANL interface; 6. leakage hole; 7. insertion groove of the present utility model, the components are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. The problem solved by the present utility model is that the health status of the existing electric vehicle battery pack cannot be effectively monitored and fault diagnosed, so the battery is prone to instability and accidents. Through the mutual combination of the above components, the present utility model can interact with the battery management system of the battery pack to perform fault diagnosis on the battery information.

[0024] The above shows and describes the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plug-and-play electric vehicle power battery fault diagnosis device, characterized in that: It comprises a battery fault diagnosis seat (1) and a battery fault diagnosis system; The battery fault diagnosis seat (1) comprises a circular structure, the front end of the battery fault diagnosis seat (1) is provided with an insertion groove (7), the insertion groove (7) is provided with a battery input and output charging interface (2), a communication CANH interface (3), a connection signal interface (4) and a communication CANL interface (5), the communication CANH interface (3), the connection signal interface (4) and the communication CANL interface (5) are all located on the upper side of the battery input and output charging interface (2).

2. The plug-and-play electric vehicle power battery fault diagnosis device according to claim 1, characterized in that: A leakage hole (6) is provided inside the insertion groove (7).

3. The plug-and-play electric vehicle power battery fault diagnosis device according to claim 1, characterized in that: The battery fault diagnosis system includes a battery, a DC / DC converter, a national standard communication interface, a national standard communication protocol, a fault diagnosis intelligent CPU, a Bluetooth data transmission module and a mobile phone mini program. The battery is connected to the DC / DC converter and the fault diagnosis intelligent CPU respectively, the DC / DC converter is connected to the national standard communication interface, the national standard communication interface is connected to the national standard communication protocol, the national standard communication protocol is connected to the fault diagnosis intelligent CPU, the fault diagnosis intelligent CPU is connected to the Bluetooth data transmission module, and the Bluetooth data transmission module is connected to the mobile phone mini program.

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