USB-C Tailcap Assembly for Remote Switch Connection Protection
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Solution Overview
Problem
Existing tailcap assemblies for weapon-mounted lights and portable electronic devices lack a convenient and ergonomic solution for connecting remote switches, which can hinder intuitive activation and power delivery.
Innovation Solution
A tailcap assembly with a USB Type-C receptacle that allows for the connection of a complementary plug, enabling power delivery and data transmission, and featuring a spring contact and onboard switch for enhanced control and compatibility with remote switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional onboard push-button switch is used for controlling the portable electronic device, then the device structure remains simple, but the ease of operation is reduced when the user's grip and shooting position make direct control inconvenient
Solution Approach 1:
A USB Type-C receptacle is introduced as an intermediary interface in the tailcap assembly, allowing remote switches to connect to the portable electronic device. This mediator enables indirect control when direct onboard switch operation is inconvenient, while maintaining the original switch as a backup option.
2Ease of operation
If a remote switch connected via cable is used to enable intuitive light activation, then the ease of operation is improved, but the device complexity increases due to additional connection requirements
Solution Approach 1:
The USB Type-C receptacle serves multiple functions: it provides a connection interface for remote switches, enables power delivery to the portable electronic device, and supports data transmission. This multi-functionality reduces the need for separate dedicated components for each function.
Solution Approach 2:
The system transitions from a static onboard switch to a dynamic control system where the user can switch between onboard and remote control methods depending on the operational context, grip, and shooting position requirements.
3Ease of operation
If the USB Type-C receptacle is exposed without protection, then the ease of connection is improved, but the reliability decreases due to exposure to axial and lateral forces
Solution Approach 1:
The tailcap assembly structure is designed to provide beforehand protection to the USB Type-C receptacle. The receptacle is positioned and supported within the tailcap housing, which cushions it against axial and lateral forces before they can reach the connector, preventing damage while maintaining accessibility.
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
Facilitates intuitive activation and power delivery to portable electronic devices, enhancing ergonomic operation and compatibility with remote switches, while protecting the USB Type-C receptacle from axial and lateral forces.
Implementation Method 1
a spring contact conductively connected to both the USB Type-C receptacle and the onboard switch
Data Source
AI summary
A tailcap assembly for a portable electronic device, such as a flashlight, and a complementary plug. The tailcap assembly includes a USB Type-C receptacle that allows other devices, such as a remote switch, to be connected. In some implementations, the USB Type-C receptacle is used to facilitate the delivery of power and/or the transmission of data to the portable electronic device. An example tailcap assembly comprises a USB Type-C receptacle accessible through an opening in the tailcap assembly. The opening is configured to receive and detachably retain a complementary plug inserted into the USB Type-C receptacle. The opening includes two contoured edges positioned opposite each other, between which a portion of the complementary plug is positioned when connected to the USB Type-C receptacle.