Screwless Plug Adapter With Decoupling Plunger
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Solution Overview
Problem
Existing plug-in adapters require tools and multiple hand movements to connect and disconnect electrical supply lines, especially with different conductor cross sections, making the process cumbersome and prone to errors.
Innovation Solution
A multi-pole plug-in adapter with screwless clamp connections and a decoupling plunger system allows for easy insertion and removal of supply lines without tools, featuring a prismatic structure with actuating brackets that enable simultaneous decoupling of all plungers, facilitating safe and quick handling of multi-core cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional plug-in adapters with feed terminals are used, then electrical supply lines can be connected, but tools and multiple hand movements are required for connection and disconnection
Solution Approach 1:
The clamping device is designed to automatically clamp the supply line when the plug-in adapter is inserted into the electrical device, and automatically release it when the decoupling plunger is actuated. The system serves itself by using the insertion motion to trigger clamping and the plunger motion to trigger release, eliminating the need for manual tool operation or multiple hand movements.
Solution Approach 2:
The clamping device is pre-configured with clamping elements positioned to engage the supply line immediately upon insertion of the plug-in adapter. The decoupling plunger is pre-positioned to actuate the release mechanism as soon as it is pushed, ensuring that connection and disconnection actions are completed in a single motion without requiring preliminary manual preparation.
2Adaptability or versatility
If multiple decoupling plungers are provided for each connection contact, then individual disconnection is possible, but the process becomes time-consuming and error-prone
Solution Approach 1:
Multiple decoupling plungers are merged into a single integrated decoupling plunger that simultaneously actuates all connection contacts. Instead of requiring separate plungers for each wire that would need to be operated individually, the single plunger combines all release functions into one unified component, allowing simultaneous disconnection of all supply lines with a single action.
Solution Approach 2:
The single decoupling plunger performs multiple functions by simultaneously releasing all connection contacts. This universal component replaces what would otherwise require multiple specialized plungers, reducing the number of operations needed while maintaining the capability to individually control the release of each connection contact through the unified plunger mechanism.
3Reliability
If plug-in adapters are designed for specific conductor cross sections, then connection is secure, but adaptability to different conductor sizes is limited
Solution Approach 1:
The clamping device incorporates locally adapted clamping elements that can adjust to different conductor cross sections. Each clamping element has a specific local geometry designed to securely grip conductors of varying sizes, allowing the same plug-in adapter to reliably connect different conductor types without compromising connection security or adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simple, safe, and fast connection and disconnection of electrical supply lines of varying cross sections without tools, reducing the risk of wiring errors and allowing for easy retrofitting to existing systems, suitable for all electrical devices with screwless push-in connection technology.
Implementation Method 1
a free end of a contact spring jams with a lead wire
Implementation Method 2
the free contact spring arm is acted upon by a decoupling plunger, so that the free contact spring arm is moved away from the lead wire
Data Source
Figure 1a~3
Figure 4~7
AI summary
The invention relates to a plug adapter (20, 30) for an electrical device for plugging in electrical supply lines on the device, and to a system formed by a plug adapter and a device. With the device, device connection contacts (112) are positioned in a row next to one another, and are contacted by the supply line (2) via screwless clamping devices. The supply line can be released by actuating an unlocking device (114). The clamping devices are positioned at 90° to the conductor access direction and partially project out of the housing of the switching device. The plug adapter (20, 30) has an approximately prismatic structure made of insulating moulded material, and the plug adapter also has an upper side (21, 31) positioned parallel to the upper side of the device, an output side (23) facing the device, and an access side (22) facing away from the device. Parallel receiving channels (24) for respective supply line cores (6, 8) are provided between the output side (23) and the access side (22), said receiving channels (24) being positioned in a row next to one another, and corresponding to the device connection contacts (112) of the device. An actuating bracket (42) is arranged on the plug adapter (20, 30), which is associated with the unlocking device (114) on the device in the positioning of the plug connection between plug adapter and device.