962841-1 Electric Automotive Wire Crimp Terminal Car Accessories

At present, power battery technology is immature worldwide, and energy density is low. For example: lithium iron phosphate battery is a monomer made in nano -technology. The energy density is basically at the level of 120 ～ 140W · h/kg. The energy density of the system is basically lower than 90W · H/Kg. Dozens of tens of tens of in traditional fossil fuels. This determines that electric vehicles need to reach the continuous mileage of traditional cars and require a huge battery system. For the above reasons, plus the limited arrangement of passenger car space, a very harsh requirement for the total layout:

① The space for battery needs to be stored.

② The body structure with the weight of the battery.

③ There is a requirement of protecting a collision.

④ The requirements of sealing levels.

⑤ It has the requirements of certain thermal insulation and cooling performance.

The above requirements have a great impact on the layout of the vehicle. Due to the small clearance of the car, the width of the vehicle is small, and the volume of the front engine compartment and the luggage box is very small. At present, there are four main arrangements for power batteries: under the suitcase, under the front and rear seats, the front cabin, and the suitcase and floor. The above four layouts have their own advantages and disadvantages. The comparison is shown in Table 19-1.

For electric vehicles, most of the non -independent suspensions are used, which further reduces and limits the layout space of the battery, and increases the difficulty of the layout of power batteries.

When the suspension is unfavorable to the layout of the battery, it is necessary to improve the battery system to improve the battery system in order to install and avoid the movement interference with the suspension, as shown in Figure 19-4.

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