Efficient and stable grouped connection structure between power battery modules
A group connection, power battery technology, applied in battery pack parts, structural parts, circuits, etc., can solve the problems of poor safety, low efficiency, low reliability, etc., achieve weight reduction, high safety, and reduce labor requirements. Effect
Pending Publication Date: 2018-11-06
HUNAN UNIV AISHENG AUTO TECH DEV
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Problems solved by technology
[0008] The invention provides a plug-in connector between power battery modules using electromagnetic pulse welding technology, which is used to solve the safety problem in the battery pack group structure and improve production efficiency, and to produce stable and reliable copper and aluminum through the electromagnetic pulse welding process Composite board, and a quick connector is designed on the side of the copper board for the quick assembly of the battery module inside the battery pack; at the same time, it can overcome the poor safety and reliability caused by the copper-aluminum dissimilar metal connection caused by the connection of the module in the prior art The problem of low performance and low efficiency
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[0035] The following will be combined with Figure 1-2 The technical solutions in the embodiments of the present invention are described in detail.
[0036] Such as figure 1 As shown, this embodiment provides a group connection structure between power battery modules, which includes: a battery connection plate 200 , an external group terminal 300 , and a quick plug terminal 400 .
[0037] The battery unit 100 is a basic electric energy storage unit in the power battery pack.
[0038] The battery connecting plate 200 is used for connecting adjacent battery units 100 in a relatively short distance and transmitting electric energy. The electrodes of most commercial finished batteries or modules are made of aluminum alloy. In this embodiment, more than 200 battery connection plates are made of the same aluminum alloy, which is hot-melt welded with a laser welding process to form an automated industrial production.
[0039] The quick plug terminal 400 is fixed on the end of the ...
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The invention provides an efficient and stable grouped connection structure between power battery modules. The efficient and stable grouped connection structure is characterized by comprising a battery connection board (200), an external grouped terminal (300) and a quick-insertion sub-terminal (400) and is characterized in that a battery unit (100) is an electric energy basic storage unit in a power battery pack; the battery connection board (200) is used for connection and electric energy transmission between two adjacent battery units (100); the quick-insertion sub-terminal (400) is fixed at the tail end of a cable or a conductive copper bar; a battery module (500) is integrated by ordered mounting of multiple battery units (100) and a structure is formed with a shell together and has afull electricity storage / discharge function; and electrodes of two adjacent battery units (100) are connected in series by adopting the battery connection board (200) to form internal grouping of thebattery module. For the efficient and stable grouped connection structure between power battery modules, by adopting the connection piece, the problem that dissimilar metals are directly connected togenerate potential and resistance and increase the contact resistance, so that expansion and heating at the connection portion of batteries and even spontaneous combustion are caused is solved.
Description
technical field [0001] The invention relates to the grouping technology of power battery modules and the field of safety thereof, in particular to an efficient and stable group connection structure between power battery modules suitable for industrial production and manufacturing. Background technique [0002] With the rapid development of the new energy vehicle industry and the promulgation of national support policies, electric vehicles are getting more and more attention. The core of electric vehicles is the power battery. With the rapid development of technology and the pressure of environmental protection requirements, the research on safe and efficient power batteries has become a hot spot at present. The performance of the power battery directly affects the performance of the electric vehicle, so improving the safety performance and stability of the power battery of the electric vehicle plays an extremely critical role in improving the safety and stability of the vehi...
Claims
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IPC IPC(8): H01M2/22H01M50/528
CPCH01M50/528Y02E60/10
Inventor 聂继全高晖杨兴刘鹏战
Owner HUNAN UNIV AISHENG AUTO TECH DEV