Elastic Connecting Member for Measuring Device Assembly
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Solution Overview
Problem
Existing measuring devices, such as body composition meters, face assembly challenges due to the need for soldering leads between piezoelectric elements and auxiliary power supply units, which can lead to electrical connection failures and limitations in the assembly process, as well as potential degradation over time.
Innovation Solution
A measuring device design featuring a first housing with measuring electrodes and a second housing containing a substrate, connected by unitary connecting members with elastic properties, eliminating the need for soldering and enhancing assembly ease and long-term stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soldering is used to connect the lead to the piezoelectric element, then electrical connection is achieved, but assembly complexity increases and reliability decreases due to potential solder joint degradation and lead breakage
Solution Approach 1:
The patent removes the lead and soldering process from the system by directly integrating the piezoelectric element into the circuit board. This extraction eliminates the intermediate connection components (lead and solder joints) that cause reliability issues and assembly complexity, allowing the piezoelectric element to be mounted directly onto the circuit board in a simplified manner.
2Ease of manufacture
If a lead is used to connect the piezoelectric element to the auxiliary power supply unit, then electrical connection is established, but the assembly process is limited and time-consuming due to pre-connection requirements
Solution Approach 1:
The patent extracts the lead from the system and replaces it with a direct mounting structure where the piezoelectric element is fixed directly to the circuit board. This eliminates the need for pre-connecting leads before assembly, allowing the weighing pan, piezoelectric element, and circuit board to be assembled in a single integrated process, thereby reducing assembly time and simplifying manufacturing.
3Duration of action of stationary object
If soldering and leads are used for electrical connection, then connectivity is achieved, but long-term stability deteriorates due to solder joint degradation and lead breakage
Solution Approach 1:
The patent removes the lead and soldering connection from the system by directly mounting the piezoelectric element onto the circuit board. This eliminates the intermediate connection components that are prone to degradation and breakage over time, creating a more robust and stable electrical connection that maintains reliability throughout the device's service life.
Solution Approach 2:
The patent merges the piezoelectric element directly with the circuit board by fixing it in advance to the board. This integration combines what were previously separate components (piezoelectric element, lead, and circuit board) into a unified structure, eliminating the interfaces between components that could fail and improving long-term stability.
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
The solution allows for simplified assembly and stable, long-term use of the measuring device by using elastic connecting members to establish electrical connections between electrodes and the substrate, reducing the risk of connection failures and improving assembly efficiency.
Implementation Method 1
the other end of the at least connecting member is in contact with the at least one measuring electrode due to an elastic force of the at least one connecting member itself
Data Source
AI summary
A measuring device comprises: a first housing having at least one measuring electrode; a second housing connected to the first housing and housing a substrate which has at least one terminal and includes a circuit that conducts a measurement process; and at least one connecting member disposed between the first housing and the second housing. The at least one connecting member is formed of a unitary member. One end of the at least one connecting member is connected to the at least one terminal, while the other end of the at least one connecting member is in contact with the at least one measuring electrode due to an elastic force of the at least one connecting member itself.