Multi-Pole Current Collector With Compensating Rocker
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Solution Overview
Problem
Conventional multi-pole contact line systems for electrified vehicles face challenges in maintaining uninterrupted contact with overhead lines due to structural and environmental variations, requiring significant technical effort for uniform and continuous power supply.
Innovation Solution
A current collector design featuring a pivotally mounted lower arm with two upper arms and a central compensating rocker, along with connecting rods and contact assemblies, allows for flexible adjustment to compensate for height differences and ensure uniform contact pressure across multiple poles, preventing interruptions in electrical supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional two-pole overhead line systems are used with actively readjusting current collectors, then contact reliability is improved through compensation of position variations, but device complexity increases due to the need for contact line detectors and active control mechanisms
Solution Approach 1:
The current collector is divided into multiple independent upper arms (at least two) that can be independently adjusted, with each arm equipped with its own contact assembly. This segmentation allows each arm to independently compensate for position variations in different contact wires, improving contact reliability without requiring a single complex control system for the entire collector.
Solution Approach 2:
The upper arms are designed with pivotal connections that enable dynamic adjustment of their positions relative to the lower arm. This dynamic structure allows the current collector to automatically adapt to variations in contact wire positions through mechanical movement, reducing the need for complex active control mechanisms while maintaining high contact reliability.
2Adaptability or versatility
If multiple upper arms are introduced to contact different poles of the contact line, then adaptability to height differences between contact wires is improved, but structural complexity increases
Solution Approach 1:
The upper arms are connected to the lower arm through pivotal joints that enable dynamic adjustment of arm positions. This dynamic connection allows each upper arm to independently assume different pivoting positions to accommodate height differences between contact wires of different poles, providing high adaptability without requiring complex adjustment mechanisms.
Solution Approach 2:
The lower arm serves as a universal base that supports multiple upper arms through pivotal connections. This universal design allows the same lower arm structure to accommodate different numbers and configurations of upper arms, enabling the system to adapt to various multi-pole contact line configurations without requiring fundamentally different structural designs.
3Reliability
If active readjustment mechanisms are used to compensate for position variations, then contact uniformity is improved, but operational effort and technical expenditure increase
Solution Approach 1:
The current collector is designed to automatically compensate for position variations through its own mechanical structure. The pivotal connections between the lower arm and multiple upper arms enable the system to self-adjust to contact wire position variations without requiring external control signals or active readjustment mechanisms, thereby maintaining contact uniformity while minimizing operational effort.
Solution Approach 2:
The patent replaces complex active control systems (detectors, sensors, electronic control) with a purely mechanical compensation mechanism. The pivotal connections and flexible arm structure provide automatic mechanical adaptation to position variations, substituting mechanical intelligence for electronic control systems and thereby reducing operational complexity and technical expenditure.
Data Source
AI summary
A current collector for a multi-pole contact line system has a lower arm that is pivotally mounted on a base and at least two upper arms that are pivotally mounted on an end of the lower arm opposite the base. The current collector also has at least two contact assemblies that are arranged on the respective upper arms and are associated with separate different poles of a contact line. The current collector further has a central compensating rocker arranged on the base and at least two connecting rods, the first end of each of which is pivotally connected to the central compensating rocker and the second end of each of which is pivotally connected to one of the at least two upper arms. An electrified transport system uses such a current collector.