Novel energy automobile detection tool

Abstract

The invention relates to a test tool for an electric vehicle pilot run experiment, in particular to a novel energy vehicle detection tool which comprises a switching box, the switching box is connected and adsorbed to the outer surface of a battery to be detected through a suction cup, the suction cup is of a bowl-shaped structure and is provided with a high-temperature probe, the interior of the switching box is of a cavity structure, and a rock wool layer is arranged on the inner wall of the switching box; the thickness of the rock wool layer is larger than or equal to 50 mm, the volume weight of the rock wool layer is larger than or equal to 120 kg / m < 3 >, the flame-retardant foaming agent layer is arranged in the rock wool layer, the temperature measurement data box is arranged on the inner side of the foaming agent layer and is a recording carrier for temperature measurement data of the high-temperature probe, and the high-temperature probe penetrates through the switching box and is connected with the temperature measurement data box. Compared with an existing BMS, the temperature of the battery of the electric vehicle is recorded, accurate data can be compared with data recorded by the BMS in the spontaneous combustion experiment process of the battery of the electric vehicle, and accurate data misreported by the BMS are found out to be used for improving the existing BMS.

Description

Technical Field

[0001] This invention relates to testing tools for electric vehicle trial operation experiments, specifically a novel energy vehicle testing tool. Background Technology

[0002] The rise of electric vehicles has provided new solutions for environmental protection and energy conservation, with the battery being a key component. As the power source of an electric vehicle, the operating temperature range of the battery is crucial for vehicle safety. The normal operating temperature range for electric vehicle batteries is between 0 and 40 degrees Celsius, within which the battery maintains good performance. Short circuits or overheating in the battery system of an electric vehicle can easily lead to spontaneous combustion. Battery thermal runaway, overcharging or discharging, and physical damage to the battery can all cause abnormalities in the battery system, thereby triggering a fire. New electric vehicles require trial runs to perform performance testing, including: battery system testing, high-voltage electrical system testing, drive motor and control system testing, overall vehicle performance testing, and routine testing. Battery system testing includes checking the battery pack's appearance for damage, measuring the voltage difference between individual cells (typically ≤50mV), detecting capacity degradation rate (annual degradation rate recommended ≤20%), and using specialized equipment to read battery management system (BMS) data to confirm that temperature control and charge / discharge protection functions are normal.

[0003] A Battery Management System (BMS) is a system that monitors and manages the battery's status, ensuring its safe and efficient operation. By monitoring key parameters such as voltage, current, and temperature in real time, the BMS prevents overcharging and over-discharging, thus extending battery life. It also uses balancing technology to maintain the consistency of individual cells within the battery pack, preventing overcharging or over-discharging of individual cells. However, frequent electric vehicle fires are often caused by BMS system malfunctions that prevent accurate monitoring of battery temperature.

[0004] During the trial operation of new vehicles, it is necessary to conduct corresponding data comparison and detection of BMS system failures during battery spontaneous combustion to solve the problem that the BMS system cannot accurately alarm when a fault occurs during use. The existing automotive black box system is not suitable for the comparison experiment between the temperature recorded by the BMS system and the actual temperature in the new vehicle trial operation experiment and battery spontaneous combustion experiment. Summary of the Invention

[0005] The purpose of this invention is to provide an electric vehicle testing tool for new vehicle trial operation experiments and unmanned electric vehicle spontaneous combustion experiments, which is applicable to battery temperature data detection in new vehicle trial operation experiments and data detection of the comparison between the temperature recorded by the BMS system and the actual temperature in battery spontaneous combustion experiments.

[0006] Based on the above ideas, this invention proposes a novel testing tool for new energy vehicles, characterized by comprising: an adapter box, which is connected and adsorbed onto the outer surface of the battery to be tested via a suction cup; the suction cup has a bowl-shaped structure and is equipped with a high-temperature probe; the adapter box has a hollow internal structure, and its inner wall is provided with a rock wool layer with a thickness greater than or equal to 50 mm and a bulk density greater than or equal to 120 kg / m³. 3 The rock wool layer contains a flame-retardant foaming agent layer, and the inside of the foaming agent layer contains a temperature measurement data box. The temperature measurement data box is a recording carrier for high-temperature probe temperature measurement data and is equipped with a timing device. The high-temperature probe passes through the adapter box and is connected to the temperature measurement data box.

[0007] Preferably, the high-temperature probe is a K-type thermocouple probe.

[0008] Preferably, the suction cup includes, but is not limited to, industrial silicone suction cups and PTEE fluoroplastic suction cups. Preferably, the flame-retardant foaming agent layer is a mixture of polyurethane foaming agent and inorganic foaming agent.

[0009] Preferably, the high-temperature probe is provided with a shut-off valve at the through-hole of the adapter box. The shut-off valve is a valve that cuts off the high-temperature probe and isolates the internal and external environments under high-temperature conditions.

[0010] Compared with the prior art, the significant advantages of this invention are: it records the electric vehicle battery temperature separately from the existing BMS system, and can compare the accurate data with the data recorded by the BMS system during the electric vehicle battery spontaneous combustion experiment to find the accurate data of the BMS system false alarms and use it to improve the existing BMS system.

[0011] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a cross-sectional structural diagram of the adapter box in this invention patent.

[0014] In the diagram, 1 is the suction cup, 2 is the high-temperature probe, 3 is the rock wool layer, 4 is the flame-retardant foaming agent layer, 5 is the temperature measurement data box, 6 is the shut-off valve, and 7 is the adapter box. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below.

[0016] A novel testing tool for new energy vehicles, characterized by comprising: an adapter box, wherein the adapter box is connected and adsorbed onto the outer surface of the battery to be tested via a suction cup, the suction cup having a bowl-shaped structure and equipped with a high-temperature probe; the adapter box having an internal cavity structure, the inner wall of which is provided with a rock wool layer, the rock wool layer having a thickness greater than or equal to 50 mm and a bulk density greater than or equal to 120 kg / m³. 3 The rock wool layer contains a flame-retardant foaming agent layer, and the inside of the foaming agent layer contains a temperature measurement data box. The temperature measurement data box is a recording carrier for high-temperature probe temperature measurement data, and the high-temperature probe passes through the adapter box and is connected to the temperature measurement data box.

[0017] Furthermore, the high-temperature probe is a K-type thermocouple probe.

[0018] Furthermore, the suction cup includes, but is not limited to, industrial silicone suction cups and PTEE fluoroplastic suction cups. Furthermore, the flame-retardant foaming agent layer is a mixture of polyurethane foaming agent and inorganic foaming agent.

[0019] Furthermore, the high-temperature probe is equipped with a shut-off valve at the through-hole of the adapter box. The shut-off valve is a valve that cuts off the high-temperature probe and isolates the internal and external environments under high-temperature conditions.

[0020] The specific application environment of this application is to compare the battery temperature data error in the BMS system during the trial operation test of the new electric vehicle; and to use it as comparative experimental data of the BMS system in the electric vehicle battery spontaneous combustion test to identify the data comparison of the false alarm link of the BMS system. This application adopts the external physical temperature measurement method of black box structure. The fire resistance and high temperature resistance of the black box surface have become known technologies. Therefore, this application does not make further restrictions on the shell structure and shell material of the adapter box.

[0021] Different types of batteries have different operating temperature ranges. The following are the operating temperature ranges of common batteries: alkaline batteries 0 to 55 degrees Celsius, nickel-cadmium batteries -20 to 50 degrees Celsius, lead-acid batteries -20 to 50 degrees Celsius, and lithium-ion batteries -20 to 60 degrees Celsius.

[0022] The auto-ignition temperature of an electric vehicle battery is 600 degrees Celsius, while the normal operating temperature is 0-40 degrees Celsius. The industrial silicone suction cup, PTEE fluoroplastic suction cup, and K-type thermocouple probe in the testing tool proposed in this application have an operating temperature of 400 degrees Celsius. The purpose of this design is to detach from the battery before it completely auto-ignites, while simultaneously cutting off the high-temperature probe with a shut-off valve and blocking the high-temperature probe hole on the adapter box. When the vehicle's operating temperature has reached 400 degrees Celsius, the comparative data has been collected, and the connection with the battery is disconnected.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel energy vehicle testing tool, characterized in that... include: The adapter box is attached to the outer surface of the battery to be tested via a suction cup. The suction cup has a bowl-shaped structure and is equipped with a high-temperature probe. The adapter box has a hollow internal structure with a rock wool layer on its inner wall. The rock wool layer has a thickness of ≥50mm and a bulk density of ≥120kg / m³. 3 The rock wool layer contains a flame-retardant foaming agent layer, and the inside of the foaming agent layer is a temperature measurement data box. The temperature measurement data box is a recording carrier for high-temperature probe temperature measurement data and is equipped with a timing device. The high-temperature probe passes through the adapter box and is connected to the temperature measurement data box.

2. The novel energy vehicle testing tool according to claim 1, characterized in that, The high-temperature probe is a K-type thermocouple probe.

3. The novel energy vehicle testing tool according to claim 1, characterized in that... The suction cups include, but are not limited to, industrial silicone suction cups and PTEE fluoroplastic suction cups.

4. The novel energy vehicle testing tool according to claim 1, characterized in that... The flame-retardant foaming agent layer is a mixture of polyurethane foaming agent and inorganic foaming agent.

5. A novel energy vehicle testing tool according to claim 1, characterized in that... The high-temperature probe is equipped with a shut-off valve at the through-hole of the adapter box. The shut-off valve is a valve that cuts off the high-temperature probe and isolates the internal and external environments under high-temperature conditions.

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