Integrated Cooling Controller Shielding for Electromagnetic Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Integrated controllers for cooling modules in electric vehicles generate electromagnetic waves that can adversely affect surrounding electronic devices, posing a protection issue.
Innovation Solution
An integrated controller design incorporating a shielding plate that surrounds and absorbs electromagnetic waves generated by terminals, with the shielding plate being integrally formed with the case through insert injection molding, and connected to a ground layer for discharge of absorbed waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an integrated controller is used to control the cooling module, then the control function is integrated and the structure is simplified, but electromagnetic waves are generated that adversely affect surrounding electronic devices
Solution Approach 1:
A shielding plate is introduced as an intermediary component between the integrated controller and surrounding electronic devices. The shielding plate surrounds the controller housing and terminals, acting as a mediator that blocks electromagnetic waves from propagating to adjacent electronic components while allowing the integrated controller to function normally.
Solution Approach 2:
The shielding plate converts the harmful electromagnetic radiation into a contained field by providing a conductive barrier. The electromagnetic energy that would otherwise radiate harmfully is redirected and dissipated through the shielding plate's connection to ground, transforming the harmful effect into a controlled energy dissipation process.
2Object-generated harmful factors
If a shielding plate is added to block electromagnetic waves, then electromagnetic interference is reduced, but the device complexity and manufacturing process are increased
Solution Approach 1:
The shielding plate is merged with the integrated controller housing to form a unified structure. The shielding plate surrounds the controller housing and is integrated into the overall assembly, reducing the number of separate components and simplifying the device structure while maintaining electromagnetic shielding effectiveness.
Solution Approach 2:
The shielding plate serves multiple functions simultaneously: it provides electromagnetic shielding, structurally supports the integrated controller, and connects to ground for energy dissipation. This multi-functionality reduces the need for additional dedicated shielding components, thereby reducing overall device complexity.
3Object-generated harmful factors
If a shielding plate is added to block electromagnetic waves, then electromagnetic interference is reduced, but the manufacturing process becomes more difficult
Solution Approach 1:
The shielding plate is pre-assembled with the integrated controller housing and terminals before final installation into the cooling module. The shielding plate is positioned to surround the controller housing and connect to ground through predetermined paths, simplifying the final assembly process by reducing the number of steps required to achieve proper electromagnetic shielding.
Solution Approach 2:
The shielding plate is merged with the integrated controller housing and terminal assembly to form a unified structure. This integration reduces the number of separate assembly steps required, as the shielding plate becomes an inherent part of the controller assembly rather than a separate component requiring independent installation.
4Reliability
If terminals are used for electrical connections, then electrical functionality is achieved, but electromagnetic waves are generated from the terminals
Solution Approach 1:
The shielding plate acts as an intermediary barrier between the electrical terminals and the surrounding environment. It surrounds the terminals and provides a conductive shield that intercepts electromagnetic waves generated by the electrical connections, preventing their propagation to adjacent electronic devices while maintaining the electrical functionality of the terminals.
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
Effectively shields and discharges electromagnetic waves, protecting surrounding electronic devices and systems by absorbing and redirecting them through a ground layer.
Implementation Method 1
a shielding plate shielding electromagnetic waves by surrounding the plurality of terminals and coupled to the case
Implementation Method 2
the connection tab may be electrically connected with the ground layer
Data Source
AI summary
The present disclosure relates to an integrated controller for a cooling module, the integrated controller including: a case having a connector: a plurality of terminals coupled to the case and having one end protruding into the case and the other end protruding into the connector; a control board accommodated in the case and coupled and electrically connected to the one end of the plurality of terminals; and a shielding plate shielding electromagnetic waves by surrounding the plurality of terminals and coupled to the case, in which the plurality of terminals generating electromagnetic waves is surrounded by the shielding plate to be able to absorb the electromagnetic waves can be absorbed such that the integrated controller can protect surrounding electronic devices and systems.