Detection device and detection method
A technology of testing equipment and testing methods, applied in the direction of material resistance, etc., can solve the problems that the tooling fixture has a great influence on the test results, cannot accurately and quickly detect the welding quality of the battery cell and the protective plate, and the damage of the tensile test, so as to facilitate data analysis and analysis. Abnormal traceability, strong practicability and promotion value, and the effect of improving production efficiency
Inactive Publication Date: 2012-07-18
DONGGUAN NVT TECH
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Problems solved by technology
[0005] First, visual inspection is not easy to find defects such as false welding, and it is highly subjective. When inspecting a lithium battery pack containing multiple cells, it is inefficient and time-consuming
[0006] Second, the tensile test is a destructive test, and the fixture has a great influence on the test results.
[0007] The third is that there is no one-to-one corresponding data record for these two detection methods, which is not convenient for the establishment of a product information traceability system
[0008] It can be seen that none of the detection methods currently used can accurately, quickly, and low-cost detect the welding quality between the battery cell and the protective plate.
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[0025] The present invention will be described in further detail below in conjunction with the examples and the accompanying drawings, but the implementation of the present invention is not limited thereto.
[0026] Such as figure 1 As shown, the detection device of the present invention includes a processor 3 and a display 1 electrically connected to the processor 3, a communication module 5 and an electronic load 4 connected to a lithium battery pack, the processor 3, the electronic load 4 and the display 1 are connected to the power supply 2 respectively. Wherein, the processor 3 is provided with a central processing unit (CPU) 31, the lithium battery pack has a fuel gauge, and the communication module 5 can communicate with the battery pack with the fuel gauge, and can simultaneously collect the voltage value U and the current Value I.
[0027] The working principle of the detection device of the present invention is: by collecting the voltage value and the current value...
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The invention belongs to the technical field of detection devices, particularly relates to a device for detecting welding quality between a battery cell and a protective board in a lithium battery pack, and comprises a processor, a display, a communication module and an electronic load, wherein the display and the communication module are respectively and electrically connected with the processor, and the electronic load is connected with the lithium battery pack. The processor, the electronic load and the display are respectively connected with a power source. Compared with the prior art, the detection device utilizes an objective quantitative detection method to replace a traditional subjective visual judgment detection method, so that the shortcoming of destructive effects of a tensile test is overcome, the detection device is convenient and fast, accuracy of the detection is improved, detection time is saved, and production efficiency is improved. Besides, the invention further discloses a method utilizing the device to perform detection.
Description
technical field [0001] The invention belongs to the technical field of detection equipment, and in particular relates to a device for detecting the welding quality between a battery cell and a protection plate in a lithium battery pack and a method for using the device for detection. Background technique [0002] With the development of microelectronics technology in the 20th century, the miniaturization of equipment is increasing, and the battery as the energy supply element of these equipment has also been developed on a large scale. Among them, lithium secondary batteries, as a clean energy source, not only have the advantages of high voltage platform, high energy density, and small self-discharge, but have been widely used in many fields. [0003] With the development of various miniaturized devices, people have put forward higher and higher requirements for lithium secondary batteries. An important aspect of the improvement of battery quality is to improve the producti...
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Inventor 刘振辉陈光辉
Owner DONGGUAN NVT TECH