Elastic Wire Antenna Mounting on Circuit Board
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Solution Overview
Problem
Existing electronic devices with radio or electromagnetic antennas face challenges in easy and secure mounting, particularly due to the need for precise positioning and welding of flexible or rigid metal wires, which can be cumbersome and prone to errors.
Innovation Solution
An electronic device design featuring a housing with a through passage and an elastic metal wire antenna having an end portion and a facing portion connected by a bent portion, which engages partially or fully through the passage, utilizing reciprocal support parts and a protruding finger for secure electrical connection and positioning, allowing for easy assembly without additional fixing elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional metal wire antennas are soldered to electronic circuits, then reliable electrical connection is achieved, but manufacturing complexity and time increase due to positioning and welding operations
Solution Approach 1:
The patent replaces the welding operation (thermal/mechanical process) with a mechanical insertion system. The antenna wire is simply inserted through a hole in the circuit board and retained by a retention element, eliminating the need for soldering equipment and operations while maintaining reliable electrical connection.
Solution Approach 2:
The retention element automatically secures the antenna wire upon insertion through the circuit board hole. The system is self-securing without requiring additional fastening operations or tools, making the mounting process simple and reliable.
2Reliability
If traditional metal wire antennas are used, then electrical connection is established, but mounting difficulty increases due to careful positioning requirements
Solution Approach 1:
The patent replaces the complex positioning and welding mechanical system with a simple insertion-retention mechanical system. The antenna wire is guided through a hole and automatically retained, eliminating careful positioning requirements and making mounting straightforward.
Solution Approach 2:
The mounting system is segmented into distinct functional elements: the antenna wire, the circuit board with a predefined hole, and the retention element. This segmentation allows each component to be optimized independently and simplifies the overall assembly process.
3Reliability
If welding operations are used to connect antennas, then secure electrical connection is achieved, but manufacturing time and productivity decrease
Solution Approach 1:
The patent replaces the time-consuming welding operation with a rapid mechanical insertion and retention process. The antenna wire is simply pushed through a hole and secured, eliminating the need for heating, melting, and cooling cycles associated with soldering, thereby significantly increasing manufacturing speed.
Solution Approach 2:
The circuit board is pre-prepared with a hole and the retention element is pre-installed or pre-positioned. This preliminary preparation allows the antenna wire to be quickly inserted and secured without requiring complex setup or adjustment during the mounting operation, enhancing manufacturing productivity.
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 secure and efficient mounting of antennas by leveraging the elasticity of the metal wire for electrical contact, ensuring a reliable connection and simplifying the assembly process, reducing the complexity of operations like welding.
Implementation Method 1
an antenna (11) comprising a metal wire of an elastic material
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
Electronic device comprising a housing (4) in which are disposed an electronic card (6) having a through-hole (7) and an antenna (11) comprising a metallic wire made of an elastic material having an end portion (12) which includes a terminal portion (13) and an opposite portion (14), connected by a bent portion (15), and which is engaged at least partially in or through the through-hole of the electronic card, the housing (4) and the antenna (11) comprising reciprocal support parts or portions (10, 12, 21) such that, under the effect of the elasticity of the metallic wire, the end portion of the antenna bears on at least one area of the electronic card provided with an electrical contact (8) in order to establish an electrical connection between the antenna and this electrical contact.