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Protecting method and circuit for battery module assembly and disassembly

A battery module and protection circuit technology is applied in the protection and circuit fields of battery module installation and disassembly, and can solve problems such as waste.

Inactive Publication Date: 2014-10-01
JOULWATT TECH INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And this kind of pressure resistance is only used during installation, which is a great waste

Method used

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  • Protecting method and circuit for battery module assembly and disassembly
  • Protecting method and circuit for battery module assembly and disassembly
  • Protecting method and circuit for battery module assembly and disassembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A protection method for installing and dismounting a battery module, including a battery module 1 and a battery 2, the battery module 1 and the battery 2 can be connected to form a "battery-battery module" loop, and the input capacitance C of the battery module 1 Before adding an adjustment module that can change the loop damping, when the battery module 1 and battery 2 need to be installed or disassembled, the loop damping can be increased by adjusting the adjustment module; when the battery module 1 and battery 2 are connected or the battery module 1 needs to When starting to work in high current mode, the loop damping is reduced by adjusting the adjustment module.

[0024] The adjustment mode of the adjustment module is a manual adjustment mode or a communication adjustment mode.

[0025] The adjustment module in this embodiment is a variable impedance Z. When the battery module and the battery need to be installed or disassembled, the variable impedance Z is adjuste...

Embodiment 2

[0029] refer to image 3 , the difference between this embodiment and the first embodiment is that the adjustment module is a power tube M, when the battery module 1 and the battery 2 need to be installed or disassembled, the power tube M is turned into an OFF state, or a high impedance When the battery module 1 is connected to the battery 2 or the battery module 1 needs to start working in the high current mode, the power tube M enters a fully conductive state, or a small impedance state, so that the loop damping state is Little damping.

[0030] In this embodiment, before the battery module 1 is installed or when it needs to be disassembled, the power tube M can be in an OFF state or a high-impedance state, so that the "battery-battery module" loop damping is large enough to ensure that the battery module 1 is connected to the charged battery 2 When , the "battery-battery module" loop does not form a strong oscillation, and the voltage at point A on the input capacitor of t...

Embodiment 3

[0032] refer to Figure 4 The difference between this embodiment and the second embodiment is that the adjustment module includes a power tube M, and a resistor R is connected in parallel between the source and drain of the power tube M. When the battery module 1 and the battery 2 When it needs to be installed or disassembled, turn the power tube M into the OFF state to make the circuit a large damper; when the battery module 1 is connected to the battery 2 or the battery module 1 needs to start working in the high current mode, the power tube M is fully turned on state, making the loop a small damper.

[0033] In this embodiment, before the battery module 1 needs to be installed or disassembled, the power tube M is in the OFF state, and the resistor R connected in parallel between the source and drain terminals of the power tube M ensures that the "battery-battery module" loop damping is large enough to make the battery module 1 contact When the battery is 2, the voltage at ...

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Abstract

Disclosed is a protecting method for battery module assembly and disassembly. According to the method, a battery module and a battery are included, the battery module and the battery can be connected to form a battery-battery module loop, and an adjusting module capable of changing loop damping is added in front of an input capacitor of the battery module. When the battery module and the battery need to be assembled or disassembled, the loop damping is enlarged by adjusting the adjusting module. When the battery module and the battery are connected or the battery module needs to start to work in a large-current mode, the loop damping is decreased by adjusting the adjusting module. The protecting method has the advantages that it is ensured that overshooting of the voltage of the battery module cannot occur during assembly and disassembly, and no large current peaks exist in the loop, so that the battery module is safely assembled and disassembled; when the battery module works in the large-current mode, no excessive voltage drops are input into the battery-battery module loop, and it is ensured that the battery module normally works in the large-current mode.

Description

technical field [0001] The invention relates to a protection method and circuit for installing and dismounting a battery module. Background technique [0002] For a battery application module that must handle power, the connection loop to the battery must be low damped because it must handle power. like figure 1 As shown, since the battery 2' is always charged, when the battery module 1' is connected to the charged battery 2', the parasitic inductance L of the lead wire between the battery 2' and the battery module 1' and the input of the battery module 1' A low-damping loop is formed between the capacitors C, causing oscillation, and a voltage peak at point A on the input capacitor C of the battery module 1′ is generated that is much higher than the battery voltage, resulting in large current pulses and high voltage conditions that damage the battery module 1'. This situation may occur many times when the battery module 1' is installed on the battery 2', or when the batt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/36
Inventor 黄必亮任远程周逊伟
Owner JOULWATT TECH INC LTD
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