Charging connector contact resistance detection device and charging control method
A charging control method and contact resistance technology, which are applied in battery circuit devices, measuring devices, circuit devices, etc., can solve problems such as poor contact, and achieve the effect of reducing charging risks.
Active Publication Date: 2013-01-16
SHENZHEN CLICK TECH +3
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[0003] The main purpose of the present invention is to address the deficiencies of the prior art, to provide a charging joint contact resistance detection device and a charging control method, which can effectively avoid problems caused by poor contact of the plug-in parts
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[0021] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings.
[0022] An embodiment of the charging contact resistance detection device includes a detection unit and a control unit (not shown) arranged at the power supply end, the detection unit is used to detect the voltage value of the plug-in part between the power supply end and the battery, and the control unit The unit is used to control charging according to the detection result of the detection unit. When the voltage value of the plug-in part is above the set maximum threshold, it controls to stop charging. When the current value is lower than the specified current value, it is controlled to charge with the normal current value. In a preferred embodiment, the device for detecting contact resistance of the charging connector further includes an alarm unit (not shown), and when the voltage value of the plug part is higher than a normal threshold...
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The invention discloses a charging connector contact resistance detection device. The device comprises a detection unit and a control unit arranged at a power supply end, wherein the detection unit is used for detecting a voltage value of a plug part between the power supply end and a battery; and the control unit is used for stopping charging when the voltage value of the plug part is over a setmaximum threshold, and controlling to charge by a normal current when the voltage value of the plug part is below a normal threshold. The charging control method comprises the following steps of: a, detecting whether the power supply end is connected with the battery electrically; if the power supply end is connected with the battery electrically, performing a step b; and b, performing pre-charging according to a set low current, and detecting the voltage value of the plug part between the power supply end and the battery; stopping charging when the detected voltage value of the plug part is over the set maximum threshold; and charging by using the normal current when the detected voltage value of the plug part is below the normal threshold. By detecting the plug part and controlling the charging according to a detection result, problems caused by poor contact of the plug part can be effectively avoided.
Description
technical field [0001] The invention relates to power battery charging technology, in particular to a charging joint contact resistance detection device and a charging control method. Background technique [0002] When the existing charging station charges the power battery pack, when the charging output plug is connected to the female seat of the power battery pack, the charging switch is turned on, and the powerful charging current directly charges the battery pack. There are great hidden dangers in this charging method, because most of the charging of power battery packs is carried out outdoors, and the environment is harsh, and its charging plugs and sockets are easily subject to improper operation or external pollution, resulting in poor contact and increased contact resistance. When it passes through, a large loss will be generated on its contact resistance and serious heating will be caused, which will eventually lead to low charging efficiency. In severe cases, it ma...
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IPC IPC(8): H02J7/00G01R27/02G01R31/02
Inventor 周明亮肖铿
Owner SHENZHEN CLICK TECH