A new energy vehicle power battery rapid detection device

Abstract

This utility model discloses a rapid testing device for power batteries in new energy vehicles, belonging to the field of power battery testing for new energy vehicles. To address the shortcomings of existing power battery testing technologies for new energy vehicles, the testing device of this utility model includes a screen, a testing head, a power switch, a protocol board, a protocol parsing module, a Bluetooth transmission module, a power supply unit, and a housing. It adopts a DC charging port testing method for new energy vehicles, is compatible with a wide range of vehicle models, is not limited by power battery materials, has comprehensive application scenarios, and is not restricted by region or environment. Furthermore, through modular design and intelligent testing technology innovation, it solves industry pain points such as poor portability and insufficient compatibility of power battery testing equipment. It is simple to operate, small in size and lightweight, and convenient to carry in the vehicle. This invention is applied to the fault detection of power batteries in new energy vehicles and the assessment of the health status of power batteries in new energy vehicles.

Description

Technical Field

[0001] This utility model relates to the testing technology of power batteries for new energy vehicles, specifically to a rapid testing device for power batteries of new energy vehicles. Background Technology

[0002] With the escalating global energy crisis and increasing environmental awareness, new energy vehicles, as a core alternative to traditional gasoline-powered vehicles, have achieved large-scale promotion and application worldwide. As the core power source of new energy vehicles, the performance of the power battery directly determines the vehicle's range, power output, and safety reliability, and is a key indicator for measuring the competitiveness of new energy vehicle products. Against this backdrop, performance testing of power batteries is conducted throughout their entire lifecycle—production, use, maintenance, and recycling—becoming a crucial support for ensuring the healthy development of the new energy vehicle industry. Currently, the testing requirements for power batteries in new energy vehicles have gradually expanded from traditional factory performance calibration to real-time status monitoring during vehicle operation, fault diagnosis during after-sales maintenance, and evaluation of the secondary use of retired batteries. However, existing power battery testing technologies still have many shortcomings that make it difficult to meet the needs of industrial development. In terms of testing efficiency, traditional testing devices mostly adopt offline static testing modes, requiring the battery modules to be removed from the vehicle and tested one by one. A single testing process usually takes several hours or even longer, which not only seriously affects the efficiency of vehicle maintenance but also makes it difficult to adapt to the large-scale testing needs brought about by the surge in the number of new energy vehicles.

[0003] In summary, current testing technologies for new energy vehicle power batteries have significant shortcomings in terms of efficiency, accuracy, versatility, and scenario adaptability, failing to meet the needs of refined management throughout the entire lifecycle of power batteries. Therefore, developing a power battery testing device that combines rapid testing capabilities, high-precision analytical performance, broad adaptability, and scenario flexibility is of great significance for improving the safety and reliability of new energy vehicle power batteries, extending battery life, and reducing operation and maintenance costs. It is also a key technological support for promoting the high-quality development of the new energy vehicle industry. Summary of the Invention

[0004] To address the problems mentioned in the prior art, this utility model proposes a rapid testing device for power batteries of new energy vehicles.

[0005] This utility model discloses a rapid testing device for power batteries in new energy vehicles, comprising: a screen, a testing nozzle, a power switch, a protocol board, a protocol parsing module, a Bluetooth transmission module, a power supply unit, and a housing. The housing has an internal cavity, within which the protocol board, protocol parsing module, and Bluetooth transmission module are housed. A power switch is located on the surface of the housing. The testing nozzle is positioned at one end of the housing. The protocol board is connected to the testing nozzle via signal and power lines. The protocol board is connected to the protocol parsing module via signal lines. The Bluetooth transmission module is connected to the protocol parsing module via signal lines. The Bluetooth transmission module is connected to the power supply unit via the power switch and a power line. The Bluetooth transmission module is wirelessly connected to the screen via Bluetooth. The testing nozzle is connected to the power supply unit via the power switch and a power line.

[0006] The screen is a capacitive touchscreen, with a power switch and a power charging port on the outer surface of the screen.

[0007] The power supply unit uses a lithium battery and is located at the bottom of the casing.

[0008] The charging head includes at least seven ports: a low-voltage auxiliary power positive terminal, a low-voltage auxiliary power negative terminal, a first charging connection confirmation terminal, a second charging connection confirmation terminal, a charging communication high terminal, a charging communication low terminal, and a ground terminal. Specifically, the low-voltage auxiliary power positive and low-voltage auxiliary power negative terminals of the charging head are connected to the low-voltage auxiliary power positive and low-voltage auxiliary power negative terminals of the protocol board via power lines, respectively. The first and second charging connection confirmation terminals of the charging head are connected to the first and second charging connection confirmation terminals of the protocol board via signal lines, respectively. The charging communication high and low terminals of the charging head are connected to the charging communication high and low terminals of the protocol board via signal lines, respectively. The ground terminal of the charging head is connected to the ground terminal of the protocol board.

[0009] The high and low charging communication signals of the protocol board are connected to the high and low communication signals of the protocol parsing module via signal lines, respectively. The negative terminal of the power supply unit is connected to the negative terminal of the low-voltage auxiliary power supply of the gun head via a power line, and the positive terminal of the power supply unit is connected to the positive terminal of the low-voltage auxiliary power supply of the gun head via a power line and a power switch. The positive terminal of the Bluetooth transmission module is connected in parallel with the positive terminal of the low-voltage auxiliary power supply of the gun head and the positive terminal of the power supply unit via a power line and a power switch. The negative terminal of the Bluetooth transmission module is connected in parallel with the negative terminal of the low-voltage auxiliary power supply of the gun head and the negative terminal of the power supply unit via a power line. Under normal circumstances, the power supply unit provides power. If the power supply unit's power is insufficient, it is powered by the positive and negative terminals of the low-voltage auxiliary power supply. In addition, the positive and negative terminals of the low-voltage auxiliary power supply can also charge the power supply unit.

[0010] Advantages of this utility model: This invention utilizes a DC charging port detection method for new energy vehicles, making it compatible with a wide range of vehicle models, unrestricted by power battery materials, and applicable to a comprehensive range of scenarios, without geographical or environmental limitations. Furthermore, through modular design and innovative intelligent detection technology, it addresses industry pain points such as poor portability and insufficient compatibility of power battery testing equipment. It is simple to operate, small in size and lightweight, making it convenient to carry in the vehicle. This invention is applied to the detection of power battery faults in new energy vehicles and the assessment of the health status of power batteries in new energy vehicles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the appearance of one embodiment of the rapid testing device for power batteries of new energy vehicles according to this utility model; Figure 2 This is an internal connection block diagram of one embodiment of the rapid testing device for power batteries of new energy vehicles according to this utility model; Figure 3 This is a connection diagram during testing, illustrating one embodiment of the rapid testing device for power batteries in new energy vehicles according to this utility model. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1 and 2 As shown, the rapid testing device for new energy vehicle power batteries in this embodiment includes: a housing, a protocol board, a protocol parsing module, a Bluetooth transmission module, a power supply unit, a power switch, a testing nozzle, and a screen. The housing has an internal cavity, and the protocol board, protocol parsing module, and Bluetooth transmission module are housed inside the housing. A power switch is located on the surface of the housing. The testing nozzle is located at the top of the housing, and the power supply unit is located at the bottom of the housing. The screen is a capacitive touchscreen. The protocol board and the testing nozzle are connected via signal and power lines. The protocol board and the protocol parsing module are connected via signal lines. The protocol parsing module and the Bluetooth transmission module are connected via signal lines. The Bluetooth transmission module is connected to the power supply unit via the power switch and a power line. The testing nozzle is connected to the power supply unit via the power switch and a power line. The Bluetooth transmission module and the screen are wirelessly connected via Bluetooth.

[0014] In this embodiment, the screen is a 4.3-inch capacitive touch screen with a switch and a power charging port on its outer surface, and is charged by an external power source; the power supply unit is a removable rechargeable 12V lithium battery.

[0015] In this embodiment, as Figure 2As shown, the charging head adopts a national standard nine-hole DC charging head, including a high-voltage DC power supply positive terminal DC+, a high-voltage DC power supply negative terminal DC-, a low-voltage auxiliary power supply positive terminal A+, a low-voltage auxiliary power supply negative terminal A-, a first charging connection confirmation terminal CC1, a second charging connection confirmation terminal CC2, a charging communication high terminal S+, a charging communication low terminal S-, and a ground terminal PE. The high-voltage DC power supply positive terminal DC+ and the high-voltage DC power supply negative terminal DC- are not connected. The low-voltage auxiliary power supply positive terminal A+ and the low-voltage auxiliary power supply negative terminal A- of the charging head are connected to the low-voltage auxiliary power supply positive terminal A+ and the low-voltage auxiliary power supply negative terminal A- of the protocol board via power lines. The first charging connection confirmation terminal CC1 and the second charging connection confirmation terminal CC2 of the charging head are connected to the first charging connection confirmation terminal CC1 and the second charging connection confirmation terminal CC2 of the protocol board via signal lines. The charging communication high terminal S+ and the charging communication low terminal S- of the charging head are connected to the charging communication high terminal S+ and the charging communication low terminal S- of the protocol board via signal lines. The ground terminal PE of the charging head is connected to the ground terminal PE of the protocol board. The charging communication high (S+) and low (S-) of the protocol board are connected to the high-level communication line H and low-level communication line L of the protocol parsing module via signal lines, respectively. The negative (-) power supply of the power supply unit is connected to the negative (A-) power supply of the low-voltage auxiliary power supply of the charging gun via a power line, and the positive (+) power supply of the power supply unit is connected to the positive (A+) power supply of the low-voltage auxiliary power supply of the charging gun via a power line and a power switch. The positive (+) power supply of the Bluetooth transmission module is connected in parallel with the positive (A+) power supply of the low-voltage auxiliary power supply of the charging gun and the positive power supply of the power supply unit via a power line and a power switch. The negative (-) power supply of the Bluetooth transmission module is connected in parallel with the negative (A-) power supply of the low-voltage auxiliary power supply of the charging gun and the negative power supply of the power supply unit via a power line. Under normal circumstances, the power supply unit provides power. If the power supply unit's power is insufficient, the positive (A+) and negative (A-) power supplies of the low-voltage auxiliary power supply are used for power supply. The screen and the Bluetooth transmission module are wirelessly connected via Bluetooth.

[0016] When testing the power battery of a new energy vehicle, the probe of the rapid battery testing device is inserted into the DC charging port of the new energy vehicle, such as... Figure 3 As shown; when the power switch is turned on, the power supply unit provides operating power to the Bluetooth transmission module, while the low-voltage auxiliary power supply charges the power supply unit; the protocol board acquires the new energy vehicle power battery protocol information and transmits it to the protocol parsing module; the protocol parsing module parses the data to obtain the new energy vehicle power battery data parameters, such as the current remaining power battery charge, rated capacity, rated energy, current total power battery voltage, highest single-cell voltage, lowest single-cell voltage, single-cell temperature, vehicle identification number (VIN), vehicle voltage and current requirements, and then sends the parsed data to the Bluetooth transmission module; the Bluetooth transmission module sends the parsed data to the screen via Bluetooth wireless connection; the user can view the parsed data on the screen or download the parsed data to obtain the new energy vehicle power battery data.

[0017] Finally, it should be noted that the purpose of disclosing the embodiments is to help further understand this utility model. However, those skilled in the art will understand that various substitutions and modifications are possible without departing from the spirit and scope of this utility model and the appended claims. Therefore, this utility model should not be limited to the content disclosed in the embodiments, and the scope of protection of this utility model is defined by the scope of the claims.

Claims

1. A rapid testing device for power batteries of new energy vehicles, characterized in that, The detection device includes: a screen, a probe, a power switch, a protocol board, a protocol parsing module, a Bluetooth transmission module, a power supply unit, and a housing. The housing has an internal cavity, and the protocol board, protocol parsing module, and Bluetooth transmission module are housed inside the housing. A power switch is located on the surface of the housing. The probe is positioned at one end of the housing. The protocol board and probe are connected via signal and power lines. The protocol board and protocol parsing module are connected via signal lines. The Bluetooth transmission module and protocol parsing module are connected via signal lines. The Bluetooth transmission module is connected to the power supply unit via the power switch and a power line. The Bluetooth transmission module is wirelessly connected to the screen via Bluetooth. The probe is connected to the power supply unit via the power switch and a power line.

2. The detection device as described in claim 1, characterized in that, The screen is a capacitive touchscreen.

3. The detection device as described in claim 1, characterized in that, The power supply unit uses a lithium battery.

4. The detection device of claim 1, wherein, The charging head includes at least seven ports: a low-voltage auxiliary power supply positive terminal, a low-voltage auxiliary power supply negative terminal, a first charging connection confirmation terminal, a second charging connection confirmation terminal, a charging communication high terminal, a charging communication low terminal, and a ground terminal. The low-voltage auxiliary power supply positive and negative terminals of the charging head are connected to the low-voltage auxiliary power supply positive and negative terminals of the protocol board via power lines, respectively. The first and second charging connection confirmation terminals of the charging head are connected to the first and second charging connection confirmation terminals of the protocol board via signal lines, respectively. The charging communication high and low terminals of the charging head are connected to the charging communication high and low terminals of the protocol board via signal lines, respectively. The ground terminal of the charging head is connected to the ground terminal of the protocol board.

5. The detection device of claim 4, wherein, The charging communication high and charging communication low of the protocol board are connected to the high-level communication line and low-level communication line of the protocol parsing module, respectively, via signal lines; the negative power terminal of the power supply unit is connected to the negative power terminal of the low-voltage auxiliary power supply of the gun head via a power line, and the positive power terminal of the power supply unit is connected to the positive power terminal of the low-voltage auxiliary power supply of the gun head via a power line and a power switch; the positive power terminal of the wireless transmission module is connected in parallel with the positive power terminal of the low-voltage auxiliary power supply of the gun head and the positive power terminal of the power supply unit via a power line and a power switch; the negative power terminal of the Bluetooth transmission module is connected in parallel with the negative power terminal of the low-voltage auxiliary power supply of the gun head and the negative power terminal of the power supply unit via a power line.

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