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High-voltage parallel connection device, energy storage matrix, system and use method of high-voltage parallel connection device

A parallel and high-voltage technology, applied in the electrical field, can solve the problems of large power of parallel battery packs and the inability to implement equalization, so as to improve battery life and solve the problem of large backflow

Pending Publication Date: 2022-05-13
智一新能源发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ①Because the power of each parallel battery pack is too large, equalization cannot be implemented
[0005] ③The mode of monitoring but not controlling cannot solve the fundamental problem of battery thermal runaway

Method used

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  • High-voltage parallel connection device, energy storage matrix, system and use method of high-voltage parallel connection device
  • High-voltage parallel connection device, energy storage matrix, system and use method of high-voltage parallel connection device
  • High-voltage parallel connection device, energy storage matrix, system and use method of high-voltage parallel connection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1: Combining figure 1 , according to this embodiment of a high-voltage parallel device, including: a power connection positive terminal 1, a main channel switch 5, a power connection negative terminal 6, a current limiting unit 2 and a display unit, wherein the display unit includes a display assembly 3 and An adjustment resistor 4 connected in series with the display component 3;

[0047] The main channel switch includes at least three contacts, the first contact c is connected to the negative terminal of the power connection; the second contact b is connected to one end of the current limiting unit 2;

[0048] The other end of the current limiting unit 2 is connected to the positive terminal 1 of the power wiring;

[0049] One end of the display unit is connected to the positive terminal 1 of the power connection, and the other end is connected to the third contact a of the main channel switch 5 , that is, the current limiting unit 2 or the display unit is se...

Embodiment 2

[0054] Embodiment 2: An energy storage matrix, including: a plurality of single cells 61 and a plurality of high-voltage parallel devices 62, a plurality of the single cells 61 are connected in series to form a battery string, and are connected in series with one of the high-voltage parallel devices 62 A battery cluster is formed; multiple battery clusters are connected in parallel to form an energy storage matrix.

Embodiment 3

[0055] Embodiment 3: An energy storage system, including the energy storage matrix as described above, and a multi-channel management unit 43, the multi-channel management unit 43 is connected to all high-voltage parallel devices 45 of the energy storage matrix for controlling On-off of the high-voltage shunt.

[0056] According to a specific embodiment of the present application, the above-mentioned energy storage system further includes: an information collection unit 41, an operation unit 42, and a central management unit 44, wherein the information collection unit 41, the operation unit 42, and the multi-channel management unit 43, and the central management unit 44 are connected in sequence.

[0057] The information collection unit 41 is used to collect one or more signals in the voltage, current and temperature of the path where the battery cluster is located;

[0058] The computing unit 42 is used to judge whether the above-mentioned one or more signals are within a pr...

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PUM

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Abstract

The invention provides a high-voltage parallelizer, an energy storage matrix, a system and a use method of the high-voltage parallelizer. The high-voltage parallel connection device comprises a power wiring positive electrode end, a main channel switch, a power wiring negative electrode end, a current limiting unit and a display unit, and the display unit comprises a display assembly and an adjusting resistor connected with the display assembly in series; the main channel switch comprises at least three contacts, and the first contact is connected with the negative electrode end of the power wiring; the second contact is connected with one end of the current limiting unit; the other end of the current limiting unit is connected with the power wiring positive end; and one end of the display unit is connected with the positive electrode end of the power wiring, and the other end of the display unit is connected with the third contact of the main channel switch, namely, the current limiting unit or the display unit is selectively connected through the main channel switch. According to the high-voltage parallelizer structure, whether backflow exists in the voltage of the parallel batteries or not can be displayed, the system safety is improved, and the service life of the batteries is prolonged.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a high-voltage parallel device, an energy storage matrix, a system and a method for using the same. Background technique [0002] Lithium battery is the secondary power source with the highest energy density so far. When using lithium battery, the biggest hidden danger is the safety management of the battery. figure 1 It is a battery management system often used in the prior art, such as figure 1 As shown, most of the existing power lithium battery group technologies adopt the "single-channel centralized (BMS)" management mode. Taking the current electric vehicles and power storage stations as examples, the battery management method is to first connect the single cells in parallel to form a parallel battery pack, and then connect all the parallel battery packs in series to reach a certain target voltage, and finally through a single The channel output forms the battery syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B60L58/18
CPCH02J7/00304H02J7/0047H02J7/0016H02J7/00309B60L58/18Y02T10/70
Inventor 樊朝晖岳严霜苏林卢世佳
Owner 智一新能源发展有限公司