Voltage Detection Apparatus for Assembled Battery Commonality
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Solution Overview
Problem
Existing voltage detection apparatuses for assembled batteries require a change in the number of input sections and control section structure when the number of detection blocks changes, lacking commonality of parts and increasing complexity.
Innovation Solution
A voltage detection apparatus with a monitoring section that integrates multiple battery cells into detection blocks, using high-potential and low-potential electrical paths and switches to detect terminal voltages, and a control section with shared input sections to maintain commonality across varying battery configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of detection blocks is changed due to a change in specifications of the assembled battery, then the voltage detection apparatus must be reconfigured, but the number of input sections and control section structure must also be changed, which increases device complexity and reduces commonality of parts
Solution Approach 1:
The patent applies universality by designing the control section with a fixed number of input sections that can handle multiple detection blocks through sequential switching. The high-potential switch and low-potential switch enable a single input section to serve multiple detection blocks by selectively connecting different blocks to the same input section at different times, eliminating the need to increase input section count when adding detection blocks.
Solution Approach 2:
The patent implements dynamics through the use of switches that dynamically reconfigure the electrical connections between detection blocks and input sections. The high-potential switch and low-potential switch allow the system to adapt its configuration dynamically, enabling a fixed control section structure to accommodate variable numbers of detection blocks without physical reconfiguration.
2Reliability
If multiple input sections are provided for each detection block to ensure reliable voltage detection, then detection reliability is improved, but the number of components increases and commonality of parts is reduced
Solution Approach 1:
The patent applies merging by combining multiple detection block connections into a single input section through the use of switches. Instead of providing separate input sections for each detection block, the system merges the input paths by using high-potential switches and low-potential switches to selectively connect different detection blocks to the same input section, reducing the total number of input sections while maintaining detection capability.
Solution Approach 2:
The patent uses switches as intermediary components between detection blocks and input sections. The high-potential switch and low-potential act as mediators that enable a single input section to interface with multiple detection blocks sequentially, reducing the need for multiple direct input sections while ensuring reliable voltage detection through controlled switching.
3Measurement precision
If separate electrical paths are provided for each detection block to ensure independent voltage detection, then detection independence is improved, but electrical path length and system complexity increase
Solution Approach 1:
The patent implements dynamics by using switches to dynamically configure electrical connections. Instead of providing permanently separate electrical paths for each detection block, the system uses high-potential switches and low-potential switches to dynamically create independent measurement paths only when needed, reducing overall electrical path length while maintaining detection independence during active measurement.
Data Source
AI summary
A voltage detection apparatus is provided which is suitable for an assembled battery including a series connection of battery cells. The apparatus includes a monitoring section having battery input sections, a high-potential connection section, a low-potential connection section, and a main voltage detection section; a high-potential electrical path; a low-potential electrical path; a control section that includes a high-potential input section electrically connected to the high-potential connection section, a low-potential input section electrically connected to the low-potential connection section, and a sub voltage detection section that detects a voltage difference between the high-potential input section and the low-potential input section as a terminal voltage of a detection block; a high-potential switch that is provided in the high-potential electrical path to open and close the high-potential electrical path; and a low-potential switch that is provided in the low-potential electrical path to open and close the low-potential electrical path.