0V rechargeable lithium battery protection system with load reverse connection prevention function and battery system
A rechargeable lithium battery, reverse connection protection technology, applied in the direction of battery overcharge protection, battery overcurrent protection, battery overdischarge protection, etc., can solve the problems of battery cells, lithium battery protection board load damage, fire and explosion, etc.
Active Publication Date: 2020-10-23
SUZHOU XYSEMI ELECTRONICS TECH CO LTD
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Problems solved by technology
[0003] In the prior art, the lithium battery protection board, the charger and the load circuit are connected to a main board, and then the batteries are connected. At this time, if the batteries are reversed due to mistakes, it will lead to reversed batteries and lithium battery protection. The board and the load constitute a discharge loop, and a large current flows through the discharge loop, which can easily lead to damage to the battery cell, lithium battery protection board or load, and even fire and explosion in severe cases.
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[0058] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures. In addition, it can be understood that the unit division in the circuit in this embodiment is only a functional division, and is not a specific limitation. In the actual application process, the unit division can be further divided according to the circuit principle.
[0059] figure 1 is a schematic structural diagram of a battery protection system provided by an embodiment of the present invention, such as figure 1 As shown, the battery protection system includes: a control circuit 30, a switch circuit 20 and a di...
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The invention provides a 0V rechargeable lithium battery protection system with a load reverse connection prevention function and a battery system. The battery protection system comprises a control circuit, a switch circuit and a discharge circuit; and the control circuit comprises a reverse connection protection unit and a control signal generation unit. According to the technical scheme, througharrangement of the control signal generation unit and the reverse connection protection unit, the reverse connection protection unit can output a first control signal according to logic operation ofa control signal input by the control end of the reverse connection protection unit, a control signal of the first output end of the control signal generation unit and a control signal of the second output end of the control signal generation unit, and the first control signal can control the switch circuit to be switched on or off at the first control end of the switch circuit, so that zero-voltcharging of the battery and reverse connection protection of the battery are realized.
Description
technical field [0001] A 0V rechargeable lithium battery protection system and battery system with anti-load reverse connection. Background technique [0002] The function of the lithium battery protection board is to protect the lithium battery from over-discharge voltage, over-charge voltage, charge over-current, discharge over-current and discharge short circuit. The long service life of lithium battery cannot be separated from the protection of lithium battery protection board. [0003] In the prior art, after the lithium battery protection board, the charger and the load circuit are connected to a main board, and then the battery cell is connected, if the battery cell is reversed due to a mistake, it will lead to the reverse connection of the battery cell and lithium battery protection. The board and the load constitute a discharge loop, and a large current flows through the discharge loop, which can easily cause damage to the battery cell, lithium battery protection bo...
Claims
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Login to View More IPC IPC(8): H02J7/00H02H7/18
CPCH02J7/0034H02J7/00302H02J7/00304H02J7/00306H02H7/18
Inventor 蒋锦茂
Owner SUZHOU XYSEMI ELECTRONICS TECH CO LTD