Segmented EV Charging Plug Contact for Wear Replacement
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Solution Overview
Problem
Existing charging plugs for electric vehicles face high maintenance costs and time-consuming replacement processes due to the wear and tear of power contacts during frequent charging operations, requiring the entire plug to be dismantled and new contacts to be connected to the charging lines.
Innovation Solution
A power contact designed in two parts, with a detachable contacting component and a base component, allowing only the contacting component to be replaced without disassembling the entire plug, using connection devices like screws or bayonet connections for easy detachment and reconnection, and incorporating an insulating sleeve for reduced corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the entire charging plug is dismantled to replace worn power contacts, then the power contacts can be replaced, but the replacement process becomes time-consuming and expensive
Solution Approach 1:
The power contact is divided into two separate components: a contacting component (first connection area) and a base component (second connection area). The contacting component is designed to be detachable from the base component, allowing only the worn contacting component to be replaced while keeping the base component with the charging line connection intact. This segmentation enables quick replacement without dismantling the entire charging plug.
2Ease of repair
If the entire charging plug is dismantled to replace power contacts, then new contacts can be connected to charging lines, but maintenance costs increase
Solution Approach 1:
By segmenting the power contact into a replaceable contacting component and a permanent base component, the invention allows only the worn contacting component to be replaced. This reduces maintenance costs by eliminating the need to replace the entire charging plug assembly and reduces the complexity of the replacement process.
3Loss of time
If the contacting component is made detachable for easy replacement, then replacement time is reduced, but the connection reliability may be compromised
Solution Approach 1:
The contacting component is pre-equipped with connection devices (such as screws, bayonet connections, or other fastening mechanisms) that enable quick and reliable attachment to the base component. This preliminary preparation of connection mechanisms ensures that the detachable design does not compromise connection reliability while maintaining easy replaceability.
Data Source
Figure 1~2
Figure 3A~4B
Figure 5A~5B
AI summary
The invention relates to a power contact (10) for a charging plug (100) and/or for a charging socket, wherein the power contact (10) has a first connection region (21) for galvanically connecting to an electrical energy receiver or energy transmitter, and a second connection region (31) for galvanically connecting to a charging line (120), wherein the power contact (10) is characterised by the following features: the power contact (10) is formed as two parts and has a base component (30) and a contacting component (20) that can be connected to the base component (30), wherein the contacting component (20) is designed such that it can be detached from the base component (30), such that the contacting component (20) of the power contact (10) can be exchanged; the first connection region (21) is arranged in the contacting component (20) and the second connection region (31) is arranged in the base component (30); and, when connecting the contacting component (20) to the base component (30), the first connection region (21) and the second connection region (31) are galvanically connected.