Spring-Mediated Bus Bar Substrate Connection
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Solution Overview
Problem
Existing electric connecting structures between substrates and components in brake hydraulic pressure control devices restrict layout flexibility and increase manufacturing costs due to the need for precise alignment of electrode pads, hindering substrate downsizing and efficiency.
Innovation Solution
An electric connecting structure using a bus bar connected to the substrate and a compressed spring between the bus bar and the component's electrode, with a spring holding portion on the bus bar to ensure stable electrical connection, allowing for flexible layout and reduced manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrode pads on the substrate are positioned to correspond with electrode pads on the electric component, then electrical connection is established, but layout flexibility is restricted and substrate area efficiency is reduced
Solution Approach 1:
The patent introduces a spring as an intermediary component between the electrode pad on the electric component and the substrate. The spring includes a holding portion that can be positioned at locations other than directly above the electrode pad, allowing the substrate to be electrically connected to the electric component through the spring without requiring precise alignment between electrode pads. This mediator enables layout flexibility while maintaining reliable electrical connection.
2Reliability
If electrode pads are precisely aligned for electrical connection, then connection reliability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The spring acts as a mediator that absorbs positioning tolerances and alignment variations. The holding portion of the spring can be located at positions that do not require precise correspondence with the electrode pad location, thereby simplifying the manufacturing process and reducing assembly complexity while maintaining reliable electrical connection through the spring's elastic contact.
3Reliability
If precise alignment of electrode pads is required, then electrical connection is ensured, but substrate downsizing is hindered
Solution Approach 1:
The spring serves as a flexible intermediary that decouples the positional relationship between the electrode pad on the electric component and the substrate. The holding portion can be positioned independently, allowing the substrate to be designed with more compact dimensions and optimized layout without being constrained by the need for precise electrode pad alignment, thus enabling substrate downsizing while maintaining reliable electrical connection.
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
This solution enables flexible electrode placement, reduces manufacturing costs, and enhances area efficiency by allowing for more compact substrate designs while maintaining reliable electrical connections.
Implementation Method 1
a spring disposed in compressed state between the bus bar and an electrode formed on the electric component
Data Source
AI summary
An electric connecting structure between a substrate and an electric component includes a substrate mounted in a case, an electric component assembled to a member which the case is mounted, a bus bar fixed to the case and connected to an electric circuit on the substrate at its one end and a spring disposed in compressed state between the bus bar and an electrode formed on the electric component. The substrate is electrical lyconnected to the electric component through the bus bar and the spring and a held portion formed on the spring is held by a spring holding portion integrally formed on the bus bar.