Circuit for preventing live-line operation of battery assembly
A technology of live operation and battery assembly, which is applied in battery circuit devices, charging and maintenance charging/discharging, circuit devices, etc., can solve problems such as motherboard scrapping, increased testing workload, negative pressure impact, etc., to reduce the number of components and production cost, reduce the detection workload, and avoid damage to the motherboard
Active Publication Date: 2020-08-21
WUXI RUIQIN TECH CO LTD
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Problems solved by technology
[0002] Existing electronic products such as mobile phones, tablet computers, and wearable devices generally have built-in batteries, and after the battery is connected to the system of the electronic product, it will be directly connected to the charging chip. Once connected to the system of the electronic product, the entire system is in a charged state. Production workers are engaged in live assembly during the subsequent assembly process of electronic products, and live assembly is likely to introduce surges and / or negative pressure shocks to the system, resulting in damage to the main board, and in severe cases, it will directly lead to the scrapping of the main board
In addition, damaged motherboards are not easy to be found in the factory inspection, which greatly increases the inspection workload, work difficulty and seriously affects the yield rate
Method used
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[0018] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0019] see figure 1 and figure 2 As shown, the battery assembly preventing live operation circuit 100 of this embodiment includes a charging chip 10 and a control circuit 20, and the charging chip 10 includes a charging port 11, a power port 12, an activation port 13 for accessing an activation device 300, and an external The power supply port 14 for power supply, the charging port 11 is connected to the positive pole of the battery 200, and the negative pole of the battery 200 is grounded to GND. The activation device 300 here is specifically a USB plug. Correspondingly, the activation port 13 is specifically a USB interface, and the USB plug is inserted into the USB interface to complete Activate the action.
[0020] The control circu...
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The invention discloses a circuit for preventing live-line operation of battery assembly. The circuit comprises a charging chip and a control circuit. A charging port is connected with the anode of the battery, the cathode of the battery is grounded, a switching circuit is connected in series between the anode of the battery and the charging port; a logic input port is connected with a power supply port, a triggering port is connected with the switching circuit, when an activation device is connected to an activation port, the activation device provides an activation signal to the charging chip, the charging chip outputs a control signal to alogic circuit, and the logic circuit switches on the switching circuit according to the control signal so as to enable the charging chip to charge thebattery; after the switching circuit is switched on and the activation device is disconnected from the activation port, the charging chip keeps charging the battery. According to the invention, the battery can be electrically connected with the charging chip only through the activation logic, so that subsequent assembly is prevented from being live-line assembly due to the fact that the battery is connected into a circuit, namely, the battery is automatically and electrically connected with the charging chip, mainboard damage caused by live-line assembly is avoided, and the yield is effectively improved.
Description
technical field [0001] The invention relates to the technical field of live assembly of electronic equipment, in particular to a circuit for preventing battery assembly from live operation. Background technique [0002] Existing electronic products such as mobile phones, tablet computers, and wearable devices generally have built-in batteries, and after the battery is connected to the system of the electronic product, it will be directly connected to the charging chip. Once connected to the system of the electronic product, the entire system is in a charged state. Production workers perform live assembly during the subsequent assembly process of electronic products, and live assembly is likely to introduce surges and / or negative pressure shocks to the system, resulting in damage to the main board, and in severe cases, it will directly lead to the scrapping of the main board. And the damaged main board is not easy to be found in the factory inspection, which greatly increases...
Claims
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IPC IPC(8): H02J7/00
CPCH02J7/0069
Inventor 姜波周培杰
Owner WUXI RUIQIN TECH CO LTD