Clamp system for electrical connection among cell units
A technology of electrical connection and battery unit, which is applied in the direction of electrical components, battery pack components, clamping/spring connection, etc., and can solve problems such as hindering the popularization of electric vehicles, short service life, and shortened battery unit life
Inactive Publication Date: 2015-01-07
冯国安
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Problems solved by technology
But batteries have their serious disadvantages: short driving range, short service life and high cost, which hinder the popularization of electric vehicles
Temperature differences between battery cells will result in the aging rate of different battery cells, and the result is a shortened life of some battery cells
Since the battery pack is operated by connecting battery cells together, the failure of a single battery cell will cause damage to the entire battery pack
Method used
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[0056] Regarding the types and specifications of battery cells, I choose laminated battery cells. Compared with cylindrical battery cells, laminated battery cells have lower internal resistance and therefore generate less heat during charging and discharging. And it has a higher energy / power density. Due to its flat shape and large exposed surface, it is easier to exchange heat.
[0057] The battery box I designed has 86 large-size laminated battery cells (100Ah, 3.7V, such as figure 1 ). The battery cells are connected by a novel clip to provide electrical connection in the case of limited space, as described below.
[0058] Two battery cells are connected in series face to face ( figure 2 ), connect the different electrodes of the two battery cells with small clips ( image 3 ). This will form a double battery cell in series (referred to as double cell). The two sides of the double core and the cooling channel plate ( Figure 18 ) Contact for heat exchange.
[0059] The doub...
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The invention provides a clamp system for electrical connection among cell units. The clamp system for electrical connection among cell units has a novel structure, and a cooling fluid can effectively and efficiently cool power cell packs of electric automobiles in a uniform and well-distributed mode. The system comprises a large clamp, a small clamp and an end clamp, wherein the large clamp is used for crossing a cooling deflecting plate and providing electrical connection between two dual cores, the small clamp is used for providing electrical connection between two battery cells inside a dual core, and the end clamp is connected to an anode of a first dual core and a cathode of a last dual core and is used for being connected to a cable of a main power supply.
Description
[0001] This application is an invention patent filed on January 21, 2012, the international application number is "PCT / SG2011 / 000029", the Chinese patent application number is "201180003001.6", the name of the invention is "power battery cooling device", and the applicant is Feng Guoan's invention patent Divisional application of the application. Background technique [0002] Introduction [0003] With the gradual depletion of petroleum resources and the environmental pollution caused by burning gasoline, electric vehicles (EVs) will be the future of transportation. But batteries have serious shortcomings: short driving range, short service life and high cost, which hinder the popularization of electric vehicles. [0004] Regulating the battery temperature during continuous charging and discharging is a big challenge. [0005] For most lithium batteries of electric vehicles, their temperature specifications are usually as follows: [0006] Working temperature: -20℃ to 60℃ [0007] Char...
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IPC IPC(8): H01R4/48H01M2/20
CPCY02E60/10
Inventor 冯国安
Owner 冯国安