Battery Module End Plate Layout for Single-Bend Pole Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing battery module designs require multiple bends in the output pole connection bar, leading to increased length, cost, and occupied space within the battery pack, resulting in insufficient space for electrical connections between adjacent battery modules.
Innovation Solution
The battery module incorporates an end plate assembly with an output pole connection bar featuring a first connection part and a second connection part. The first connection part is positioned on the same side as the battery cell group's top surface, and the second connection part has a single bend to connect with the output pole base, ensuring the connection bar is entirely on one side of the output pole base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the output pole connection bar is bent multiple times from the side of the battery module pole to the side of the output pole base away from the end plate, then the connection bar can be mounted and fixed to the output pole base, but the length of the output pole connection bar increases leading to increased cost and occupied space
Solution Approach 1:
Instead of routing the output pole connection bar from the pole side to the back side (away from end plate), the patent inverts the routing direction by connecting the output pole base to the end plate first, then routing the connection bar forward to the pole side. This reversal of the conventional mounting sequence and path eliminates the need for multiple bends and reduces the overall length of the connection bar.
2Ease of operation
If the output pole connection bar is bent multiple times, then the connection bar can be mounted and fixed to the output pole base, but the occupied space of the battery pack increases leading to insufficient space for electrical connections between adjacent battery modules
Solution Approach 1:
The patent inverts the conventional routing approach by changing the mounting sequence and path direction. Instead of extending the connection bar to the back side and bending it multiple times, the connection is established from the end plate forward to the pole side, significantly reducing the spatial footprint and eliminating interference with adjacent module connections.
3Ease of operation
If the output pole connection bar is bent multiple times, then the connection bar can be mounted and fixed to the output pole base, but the production cost of the battery module increases
Solution Approach 1:
The patent inverts the conventional mounting approach by reversing the routing direction of the output pole connection bar. This inversion simplifies the manufacturing process by eliminating multiple bending operations, reducing material waste, and lowering production costs while maintaining the necessary electrical connection functionality.
4Ease of operation
If the output pole connection bar is bent multiple times, then the connection bar can be mounted and fixed to the output pole base, but the assembly efficiency of the battery module decreases
Solution Approach 1:
The patent inverts the conventional assembly sequence by first securing the output pole base to the end plate, then routing the connection bar forward to the pole side. This inverted approach reduces the number of bending and positioning steps required, thereby improving assembly efficiency and productivity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure provides a battery module and a battery pack. The battery module includes a battery cell group (100) and an end plate assembly (200). The end plate assembly (200) includes an end plate (210), an output pole base (220), an output pole connection bar (230), and a protective cover (240). The output pole connection bar (230) includes a first connection part (231) and a second connection part (232). The first connection part (231) is provided on a side of the output pole base (220) close to the top surface (103), the second connection part (232) has one bend from the side of the output pole base (220) close to the top surface (103) to a side of the output pole base (220) close to one of the side surfaces and is connected to the output pole base (220).