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摘要

Abstract

With the development of the port logistics which are going for large-scale, large-flow, high-speed. Large-scale container ships, large-tonnage containers, and the loading, unloading equipment and the supporting large-scale shore bridges have been built for it. This article mainly designs and analyzes the battery system of heavy-duty unmanned electric container transporter. After consulting the literature, and analyzing the environmental conditions and working requirements of the port AGV, finally GYS LIM50H-12 lithium ion battery is chosen as the battery module for the project, according to the data of the electric drive system from my partner to calculate the required power and he requirements of the target model to design The parameters of the electric vehicle system reasonably, determine the basic structure of a single battery pack, that is, 8 battery cells are connected in parallel to form a battery module, and 8 battery modules are connected in series to form a power battery pack. I designed the overwrap and the fixed way of the battery pack in view of the design of the car's driving conditions and speed. Simplified the battery cell model for temperature field analysis.

Key words: pure electric vehicle, battery pack, mechanical structure, thermal analysis

目录

Chapter 1 Chapter Introduction    5

1.1 background and significance    5

1.2 research developments and trends at home and abroad:    6

1.2.1 Domestic Research Developments    6

1.2.2 Research Trends Abroad    6

Chapter 2 chapter battery pack Mechanical structure Design    8

2.1 Basic requirements for the design of the battery pack mechanical structure    8

2.2 Determination of basic parameters for battery pack    9

2.2.1 Power System Parameters    9

2.2.2 Determine the basic parameters of the power system    9

2.2.3 Determination of power system capacity    9

2.2.4 structure of the power system    10

2.2.5 Battery pack Framework Design    12

2.3 Battery Module Design    14

2.3.1 bus and copper nose design.    14

2.3.2 Battery Module Specific Energy    16

2.3.3 Processing technology for battery modules    16

2.4 battery pack Structure Design    17

2.4.1 placement of the battery module in the battery pack    17

2.4.2 Battery fixed structure design    17

2.4.3 design of battery pack cooling structure    18

2.5 Battery pack Box design    22

2.6 battery pack model and physical drawings    24

2.7 Summary of this chapter    25

Chapter 3 Battery pack Thermal Analysis    26

3.1 theoretical basis of the thermal model of lithium-ion batteries    26

3.1.1 thermal principle of lithium-ion battery    26

3.1.2 Heat transfer inside the battery    28

3.1.3 how the battery and external heat transfer    30

3.2 Lithium-ion battery thermal model establishment    32

3.2.1 Building a battery thermal model    32

3.2.2 determination of cooling mode and simplification of simulation conditions    33

3.2.3 Battery Thermal Analysis    34

3.3 Summary of this chapter    36

Chapter 4 The summary and Prospect    36

4.1 summary    36

4.2 prospects    37

References (Bold second number)    37

Thanks    38

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