Device for testing electric quantity indicating lamp of mobile power supply via battery test cabinet
A mobile power and battery testing technology, applied in the field of mobile power, can solve the problems of time-consuming, poor time recording accuracy, etc.
Active Publication Date: 2017-03-08
ZHANGZHOU WANBAO ENERGY TECH CO LTD
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Problems solved by technology
[0002] Mobile power supply is currently a very popular portable power supply device. On the mobile power supply, there are usually multiple micro-indicators to indicate the real-time power. These indicators will also flash bright and dark when charging. In the past, the time interval of these indicators changing lights The test is usually performed by manual viewing or video playback, which not only consumes man-hours, but also has poor time recording accuracy. How to solve this problem is a research direction
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[0032] Such as figure 2 As shown, there are four power indicator lights LED1, LED2, LED3 and LED4 on the mobile power supply to be tested. A 3.7V lithium battery BT1, BT2, BT3, BT4, and the four lithium batteries are respectively connected to the power indicator LED1, LED2, LED3 and LED4 through four photocouplers U1, U2, U3, U4 to form a pair Four test units within the test array for testing the mobile power indicator light.
[0033] The indicator lights LED1, LED2, LED3 and LED4 of the mobile power supply are in the blinking or long-on state due to the change of the power supply voltage of the power supply pin, and the voltage on the anode and cathode of the photocoupler changes with the change of the power supply voltage of the power supply pin, making the photoelectric The light-emitting parts in the coupler produce different lights, which cause the resistance of the photocoupler connected in series in the first test arm to change. Since the voltage of the test battery is ...
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The invention provides a device for testing an electric quantity indicating lamp of a mobile power supply via a battery test cabinet. The device comprises the battery test cabinet and a test array, the test array comprises test units, each test unit comprises a test arm circuit, a second test arm circuit, an optoelectronic coupler and a test battery, two electrodes of the test battery are connected with the first and second test arm circuits respectively, the first and second test arm circuits are connected with the battery test cabinet to form a test loop, the optoelectronic coupler is connected to the first test arm circuit in series, and the anode and cathode of the optoelectronic coupler are connected to the anode and cathode of the indicating lamp in parallel; and when the mobile power supply is discharged or charged, power supply voltage change of the indicating lamp causes resistance change of the optoelectronic coupler, and further causes voltage fluctuation in the first and second test arm circuits, and the voltage fluctuation condition indicates darkness change of the indicating lamp. A change function of the indicating lamp of the mobile power supply is tested in a photoelectric isolation manner, and the device is convenient, safe and highly compatible.
Description
technical field [0001] The invention relates to the field of mobile power supplies, in particular to a device for testing mobile power supply indicator lights with a battery test cabinet. Background technique [0002] Mobile power supply is currently a very popular portable power supply device. On the mobile power supply, there are usually multiple micro-indicators to indicate the real-time power. These indicators will also flash bright and dark when charging. In the past, the time interval of these indicators changing lights Testing is usually performed by manual viewing or video playback, which not only consumes man-hours, but also has poor time recording accuracy. How to solve this problem is a research direction. [0003] The mobile power supply uses rechargeable batteries, and manufacturers of rechargeable batteries usually have large battery test cabinets, which can record the voltage, current, and time changes during the charging and discharging process of rechargeabl...
Claims
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IPC IPC(8): G01R31/44
CPCG01R31/44Y02E60/10
Inventor 吴友星张贵萍吴永文吴劲贤王智福陈健行苏锋黄子欣陈河灶
Owner ZHANGZHOU WANBAO ENERGY TECH CO LTD