Detection device for multi-string lithium ion battery protecting plate
A lithium-ion battery and detection device technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of slow detection speed and poor accuracy, achieve accurate detection, improve detection efficiency and detection accuracy.
Inactive Publication Date: 2013-02-20
江苏紫金万成科技有限公司
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Problems solved by technology
[0002] The current multi-string lithium-ion battery protection board detection device uses a regulated power supply instead of a lithium-ion battery in the multi-string lithium-ion battery. The regulated power supply has a constant current output, and the constant current flows through several voltage dividers. Adjustable potentiometer, the potentiometer will generate a stable voltage signal, the voltage signal is input to the input terminal of the multi-string lithium battery protection board, the voltage signal is changed by manually adjusting the potentiometer, so as to determine the lithium battery protection board in each Whether it can work normally under different voltage conditions, but multi-string lithium-ion batteries are composed of multiple lithium-ion batteries connected in series. This detection device requires multiple regulated power supplies, and the output voltage of each regulated power supply is manually adjusted. Manual detection, slow detection speed, poor accuracy
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[0015] Such as figure 1 As shown, a multi-string lithium-ion battery protection board detection device is a multi-string lithium-ion battery protection board detection device. The detection device includes at least one voltage generation circuit 2, and the voltage generation circuit 2 includes an input power supply 1 , a voltage regulating chip, the input power source 1 is connected to the input end of the multi-string lithium-ion battery protection board 6 through the voltage regulating chip, and the voltage generating circuit 2 is connected to the multi-level voltage selection circuit 5 through the multi-way switching circuit 4 , the multi-channel switching circuit 4 and the multi-gear generation circuit 5 are respectively connected to the controller 3 through the drive circuit, and a resistor R12 is arranged between the voltage regulation terminal and the output terminal of the voltage regulation chip, and the voltage regulation terminals are respectively The normally open ...
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The invention discloses a detection device for a multi-string lithium ion battery protecting plate. The detection device comprises at least over one voltage generating circuit; the voltage generating circuit comprises an input power supply and a voltage adjusting chip; the input power supply is connected with a display module through the voltage adjusting chip; the voltage generating circuit is connected with a multi-gear voltage selecting circuit through a multi-path switching circuit; the multi-path switching circuit and a multi-gear generating circuit are connected with a controller through a driving circuit respectively; a resistor R12 is arranged between the voltage adjusting end and the output end of the voltage adjusting chip; the voltage adjusting end is grounded together with a resistor R11 through a normally-open contact of a relay respectively and connected with the multi-path switching circuit and the multi-gear voltage selecting circuit; and the relay is connected with the controller through the driving circuit. The detection device can accurately simulate a voltage value of the multi-string lithium ion battery protecting plate under various test conditions, and has high detection speed and high precision.
Description
technical field [0001] The design scheme to be protected by the present invention relates to a detection device for a multi-string lithium-ion battery protection board. Background technique [0002] The current multi-string lithium-ion battery protection board detection device uses a regulated power supply instead of a lithium-ion battery in the multi-string lithium-ion battery. The regulated power supply has a constant current output, and the constant current flows through several voltage dividers. Adjustable potentiometer, the potentiometer will generate a stable voltage signal, the voltage signal is input to the input terminal of the multi-string lithium battery protection board, the voltage signal is changed by manually adjusting the potentiometer, so as to determine the lithium battery protection board in each Whether it can work normally under different voltage conditions, but multi-string lithium-ion batteries are composed of multiple lithium-ion batteries connected i...
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IPC IPC(8): G01R31/36
Inventor 洪平徐嘉
Owner 江苏紫金万成科技有限公司