Camera Connector Shielding Structure for EMI-Stable Shooting

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Solution Overview

Problem

Electronic devices, such as smartphones, experience interference issues during shooting functions due to electromagnetic signal interference at connection terminals, leading to phenomena like screen artifacts and freezing, affecting the shooting experience.

Innovation Solution

The implementation of a shielding member with a shielding frame and cover that grounds connection terminals, reducing impedance and parasitic capacitance, and shields against electromagnetic interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connection terminals are used to electrically connect camera apparatus and mainboard, then signal interaction is enabled, but electromagnetic interference occurs causing screen artifacts and freezing

Engineering Contradiction:

Improvesignal transmission stabilityVSAvoidelectromagnetic interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A shielding member is introduced as an intermediary component between the connection terminals and electromagnetic signals. The shielding member includes a shielding body with grounding terminals that connect to the mainboard's ground terminal, creating a protective barrier that redirects electromagnetic interference to ground while allowing signal transmission between the camera apparatus and mainboard to proceed normally

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The shielding member converts harmful electromagnetic interference into beneficial grounding current. By providing a low-impedance path to ground through the shielding frame and grounding terminals, electromagnetic interference that would otherwise cause screen artifacts and freezing is redirected to ground, transforming it from a harmful factor into a controlled current path that protects the signal transmission

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Object-affected harmful factors

If grounding is implemented for connection terminals, then electromagnetic interference is reduced, but device structure becomes more complex

Engineering Contradiction:

Improveelectromagnetic interferenceVSAvoidshielding structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The shielding member serves multiple functions simultaneously: it provides electromagnetic shielding, acts as a structural support component, and incorporates grounding terminals for electrical connection. The shielding frame can be integrated with existing device structures like camera modules or mainboard housings, allowing a single component to fulfill multiple roles rather than adding separate shielding and grounding elements

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The shielding member is designed to nest within existing device structures. The shielding body can be positioned within the housing or frame of the camera apparatus or mainboard assembly, utilizing existing spatial arrangements. Grounding terminals are integrated into the shielding structure itself rather than being separate components, allowing the grounding function to be nested within the shielding framework

Inventive Principle:

Principle #7Nested doll (Nesting)

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

Stabilizes signal transmission between the camera apparatus and the mainboard, ensuring smooth shooting functions by minimizing electromagnetic interference and improving the overall shooting experience.

Implementation Method 1

The shielding frame is electrically connected to the ground terminal. The shielding cover is connected to the shielding frame. The second connection terminal is electrically connected to the shielding cover. Therefore, the first connection terminal, the second connection terminal, the shielding cover, and the shielding frame may be grounded by using the ground terminal of the mainboard

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

The shielding member includes a shielding frame and a shielding cover that are electrically connected. The shielding frame is connected to the mainboard. The shielding frame is electrically connected to the ground terminal. The shielding cover is connected to the shielding frame. The second connection terminal is electrically connected to the shielding cover

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS20250380391A1Electronic device and shielding member

Publication Date: 2025.12.11 HONOR DEVICE CO LTD

AI summary

Embodiments of this application provide an electronic device and a shielding member. The electronic device includes a mainboard, a camera apparatus, and a shielding member. The mainboard includes a first connection terminal and a ground terminal. The camera apparatus includes a camera module, a circuit board, and a second connection terminal. The camera module is electrically connected to the circuit board. The second connection terminal is electrically connected to the circuit board. The first connection terminal is electrically connected to the second connection terminal. The first connection terminal and the second connection terminal are located in the accommodating space. The shielding member includes a shielding frame and a shielding cover that are electrically connected. The shielding frame is electrically connected to the ground terminal. The shielding cover is connected to the shielding frame. The second connection terminal is electrically connected to the shielding cover.