New power battery pack protection board

A technology for power battery packs and protection boards, applied in secondary battery repair/maintenance, secondary batteries, secondary battery components, etc., can solve the problems of reducing mileage, energy waste, etc., to prevent performance degradation and reduce manufacturing costs The effect of low cost and easy power battery matching

Inactive Publication Date: 2018-01-16
王研
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, other battery cells still have a lot of power but cannot be discharged, which causes a waste of energy and reduces the mileage

Method used

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  • New power battery pack protection board
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  • New power battery pack protection board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: as figure 2 As shown, the half-bridge type single multi-winding isolation transformer is naturally balanced balanced charging and balanced discharge circuit 7-1, which is composed of MOS tubes M1, M2 and capacitors C1, C2, C3 + single multi-winding isolation transformer T1 + rectification Diodes D1, D2 and capacitor C4 are composed together, wherein: in the half-bridge DC-AC circuit composed of MOS transistors M1, M2, capacitors C1, C2, C3 and the primary side winding of the multi-winding isolation transformer T1, first M1 , M2, C1, and C2 are connected in series respectively, and then connected in parallel, the drain of M1 and the upper end of C1 are connected to the positive pole of the power battery unit 6, and the source of M2 and the lower end of C2 are connected to the negative pole of the power battery unit 6 ; The capacitor C3 is connected in series in the circuit of the primary side winding of the multi-winding isolation transformer T1, and its s...

Embodiment 2

[0032] Embodiment 2: as image 3As shown, the full-bridge single multi-winding isolation transformer is naturally balanced balanced charging and balanced discharge circuit 7-2, which is composed of MOS transistors M1, M2, M3, M4 and capacitor C1+single multi-winding isolation transformer T1+ rectification Diodes D1, D2 and capacitor C2 are composed together, wherein: in the full-bridge DC-AC circuit composed of MOS transistors M1, M2, M3, M4, capacitor C1 and the primary side winding of multi-winding isolation transformer T1, first M1 , M2, M3, and M4 are connected in series respectively, and then connected together in parallel. The drains of M1 and M3 are connected to the positive pole of the power battery unit 6, and the source ends of M2 and M4 are connected to the negative pole of the power battery unit 6. ; The capacitor C1 is connected in series in the circuit of the primary side winding of the multi-winding isolation transformer T1, and its secondary side is composed of...

Embodiment 3

[0033] Embodiment 3: as Figure 4 As shown, the half-bridge N-only multi-winding isolation transformer is naturally balanced balanced charging and balanced discharging circuit 7-3, which is composed of MOS transistors M1, M2 and capacitors C1, C2, C3, C4... CN+N is composed of multi-winding isolation transformers T1, T2...TN+ rectifier diodes D1, D2 and capacitor C5, in which: MOS transistors M1, M2 and capacitors C1, C2, C3, C4 and multi-winding In the half-bridge DC-AC circuit composed of the primary side windings of isolation transformers T1 and T2, first M1, M2, C1, and C2 are connected in series respectively, and then connected in parallel. The drain of M1 and the upper end of C1 are connected to the power battery pack On the positive pole of the unit 6, the source of M2 and the lower end of C2 are connected to the negative pole of the power battery pack unit 6; the capacitors C3 and C4 are respectively connected in series in the circuits of the primary side windings of t...

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PUM

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Abstract

The present invention relates to a battery protection board, in particular relates to a lithium battery pack or graphene battery pack or graphene super capacitor battery pack protection board, and belongs to the field of balanced charging and balancing discharge protection of a power battery pack. The battery pack protection board comprises an auxiliary power supply unit (1), a microprocessor control unit (2), a voltage patrol unit (3), a charging / discharging circuit control unit (4), a driving unit (5), a power battery pack unit (6) and a charger unit (7). The battery pack protection boardis characterized in that the novel power battery pack protection board further comprises a balanced charging and balanced discharge circuit unit (8). The novel power battery pack protection board hasthe advantages of simple circuit, low manufacturing cost, easy power battery d matching, wide battery type adaptation range, high degree of automation and suitability for large-scale industrial production, and can ensure that when in charging, each battery in a battery pack is charged to the upper limit, and no battery in the battery pack is overcharged or undercharged, when in discharging, each battery in the battery pack can be fully discharged to the lower limit, and no battery in the battery pack is overdischarged.

Description

technical field [0001] The invention relates to a battery protection board, in particular to a protection board for a lithium battery pack or a graphene battery pack or a graphene supercapacitor battery pack, and belongs to the field of balanced charging and balanced discharging protection of power battery packs. technical background [0002] With the current situation of international non-renewable energy shortage and the continuous aggravation of environmental pollution problems, the use of new long-term, non-polluting power batteries is to replace traditional fuel engines as power for all electric vehicles, electric trucks, electric bicycles, etc. The inevitable trend of the development of the vehicle industry. In particular, lithium battery packs and more promising graphene battery packs or graphene supercapacitor battery packs will have broader applications in the future. Because it has many advantages such as small size, light weight, high voltage, high specific energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/48H01M10/42H01M10/02
CPCY02E60/10
Inventor 赵国亨王研
Owner 王研
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