Connector Assembly Noise Filtration via Circuit Board Ferrite Beads
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Solution Overview
Problem
Existing connector assemblies for high-speed CAN FD communication in vehicles face noise-related malfunctions due to increased communication speeds, and embedding ferrite beads to mitigate noise results in increased volume and weight as the distance between terminals grows.
Innovation Solution
A connector assembly where ferrite beads are coupled to a circuit board to filter out electromagnetic interference, with the circuit board having connection holes for terminal penetration and an insertion fixing unit that secures the circuit board within the housing, allowing for efficient noise filtration without bulkier designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ferrite beads are embedded in a connector to remove noise in CAN FD communication, then noise filtration is improved, but the volume and weight of the connector assembly increase
Solution Approach 1:
The patent relocates ferrite beads from being embedded within the connector housing to being mounted on the circuit board in a different spatial dimension. This dimensional relocation allows the connector assembly to maintain a compact form while still incorporating noise filtration functionality through the circuit board-mounted ferrite beads.
Solution Approach 2:
The circuit board serves as an intermediary element that carries the ferrite beads and provides electrical connection between the terminals. By using the circuit board as a mediator, the patent achieves noise filtration without requiring the ferrite beads to be directly embedded in the connector housing, thus avoiding increased volume.
2Object-affected harmful factors
If ferrite beads are embedded in a connector to remove noise in CAN FD communication, then noise filtration is improved, but the weight of the connector assembly increases
Solution Approach 1:
The patent relocates ferrite beads from being embedded within the connector housing to being mounted on the circuit board in a different spatial dimension. This dimensional relocation allows the connector assembly to maintain a compact form while still incorporating noise filtration functionality through the circuit board-mounted ferrite beads.
3Object-affected harmful factors
If distance between terminals increases to mount the ferrite bead between the terminals, then noise filtration is improved, but the volume of the connector assembly increases
Solution Approach 1:
The circuit board serves as an intermediary element that carries the ferrite beads and provides electrical connection between the terminals. By using the circuit board as a mediator, the patent achieves noise filtration without requiring the ferrite beads to be directly embedded in the connector housing, thus avoiding increased volume.
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 configuration effectively removes noise and reflected waves in CAN FD communication while reducing the overall size and weight of the connector assembly, enhancing filtering efficiency and product compactness.
Implementation Method 1
noise filters that filter out electromagnetic interference coupled to the circuit board
Implementation Method 2
The one end portion of the connection terminal may be inserted into the connection hole while being in an elastically deformed state, and adhere an inner circumferential surface of the connection hole by an elastic force
Data Source
AI summary
A connector assembly includes: a housing having a first side at which a plurality of accommodating grooves configured to receive a plurality of terminals are formed, and having a second side open; a plurality of connection terminals extending in a direction parallel to a direction from the first side of the housing toward the second side of the housing, and fixed in the housing; a circuit board inserted into the second side of the housing that is open, fixed to the housing, and electrically connected to the plurality of connection terminals; and noise filters configured to filter out electromagnetic interference and coupled to the circuit board.