Embedded Circuit Board in Fan Module Connector
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Solution Overview
Problem
Conventional fan modules require structural modifications and increased size to add electronic components, which complicates the layout, obstructs airflow, and raises production costs due to the need for additional components and thicker circuit boards to prevent damage from frequent connector use.
Innovation Solution
A fan module with a circuit board assembly embedded inside the electrical connector, allowing for the integration of an integrated circuit without altering the existing structure, using conductive cables to connect directly to the pins, thereby reducing the size and complexity of the circuit board and eliminating the need for additional connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a circuit board is added behind the existing fan connector to carry electronic components, then extra functionalities are provided, but the fan module structure is modified and the overall size increases
Solution Approach 1:
The circuit board is embedded inside the electrical connector housing, nesting one component within another. This allows the circuit board to be housed within the existing connector volume without increasing the overall fan module size, while still providing space for electronic components and extra functionalities.
Solution Approach 2:
The circuit board and electrical connector are merged into a single integrated structure where the circuit board is positioned inside the connector housing. This combination eliminates the need for separate mounting brackets and reduces the overall volume by utilizing the existing connector space.
2Adaptability or versatility
If a circuit board is added to carry electronic components, then extra functionalities are provided, but the layout becomes complicated and ESD protection components increase the circuit board size
Solution Approach 1:
ESD protection components are extracted from the circuit board and integrated directly into the electrical connector housing. This separation removes the need for additional ESD components on the circuit board, simplifying the layout while still providing ESD protection functionality through the connector's integrated design.
3Adaptability or versatility
If the circuit board is positioned higher than the existing connector to hold electronic components, then extra functionalities are provided, but airflow is blocked
Solution Approach 1:
The circuit board is nested inside the electrical connector housing rather than being positioned above it. This nesting arrangement keeps the circuit board within the existing connector volume, preventing any protrusion that would block airflow through the fan module while still providing space for electronic components.
4Reliability
If the circuit board is thickened to prevent warpage from frequent plugging and unplugging, then connector strength is improved, but production cost increases
Solution Approach 1:
The circuit board is merged with the electrical connector housing into an integrated assembly. This combination provides structural support through the connector housing itself, eliminating the need to thicken the circuit board for mechanical strength. The integrated design maintains durability while using standard-thickness circuit boards, reducing production costs.
Data Source
AI summary
A fan module configured to be detachably connected to an electronic device includes an electrical connector and a circuit board assembly. The electrical connector includes a plurality of pins configured to be electrically connected to the electronic device. The circuit board assembly is embedded inside the electrical connector and is electrically connected to one or more of the pins. The circuit board assembly includes a circuit board and an integrated circuit disposed on the circuit board.