Camera Module Power Supply Circuit Segmentation

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Solution Overview

Problem

The detachable camera module's independent power supply leads to a trade-off between appearance performance and operating time, as increasing battery capacity to extend usage time increases the module's volume, compromising its design and functionality.

Innovation Solution

A power supply circuit with first and second power supply pins on the electronic device and corresponding pins on the camera module, controlled by a processor to form a power supply loop, allowing the electronic device's power source module to power the camera module, reducing the camera module's volume while increasing the power source module's capacity to extend operating time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If battery capacity is increased to extend operating time, then duration of action is improved, but volume of camera module is increased

Engineering Contradiction:
Improveoperating timeVSAvoidvolume of camera module
Core Design Contradiction:
Duration of action of moving objectVSVolume of moving object

Solution Approach 1:

The power supply system is segmented into two parts: a small battery in the detachable camera module for basic operation, and a larger power source module in the main electronic device body for extended power supply. This segmentation allows the camera module to maintain compact size while the main device provides additional power capacity through the power source module that couples with the camera module when docked.

Inventive Principle:
Principle #1Segmentation

2Duration of action of moving object

If battery capacity is increased to extend operating time, then duration of action is improved, but appearance performance is worsened

Engineering Contradiction:
Improveoperating timeVSAvoidappearance performance
Core Design Contradiction:
Duration of action of moving objectVSShape

Solution Approach 1:

The power supply functionality is segmented between the camera module and the main device body. The camera module contains only essential components with minimal battery capacity, preserving its compact and aesthetically pleasing design. The power source module with sufficient battery capacity is located in the main device body, which is less constrained by appearance requirements, thus resolving the conflict between operating time and appearance performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A power source module acts as an intermediary between the camera module and the main device body. This intermediary component provides additional power capacity when the camera module is docked with the main device, extending operating time without requiring the camera module itself to contain a large battery that would compromise its appearance.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If independent power supply is used in detachable camera module, then ease of operation is improved, but device complexity is increased

Engineering Contradiction:
Improveindependent operation capabilityVSAvoidpower supply system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The power supply system is designed to be dynamic and adaptive. The camera module can operate independently using its own battery when detached, providing ease of operation. When docked with the main device, the power source module automatically couples with the camera module's battery to provide extended power supply. The system dynamically adjusts the power supply configuration based on whether the camera module is detached or docked, resolving the contradiction between independent operation capability and system complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4117269B1Power supply circuit and power supply method for camera module, and electronic device
Publication Date: 2024.12.25 VIVO MOBILE COMM CO LTD
  • EP4117269B1 patent drawingFigure 1
  • EP4117269B1 patent drawingFigure 2~3
  • EP4117269B1 patent drawingFigure 4~5

AI summary

Disclosed are a power supply circuit and a power supply method for a camera module, and an electronic device. The camera module is detachably connected to the body of the electronic device, and a power module is arranged in the body. The circuit comprises: a first power supply pin and a second power supply pin that are arranged on the body; a power source pin and a grounding pin that are arranged on the camera module, wherein when the camera module is installed at a preset position on the body, the power source pin is in contact with one of the first power supply pin and the second power supply pin, and the grounding pin is in contact with the other thereof; a first switch, a first end thereof being connected to the first power supply pin, a second end thereof being connected to the power module, and a third end thereof being connected to a grounding end; a second switch, a first end thereof being connected to the second power supply pin, a second end thereof being connected to the power module, and a third end thereof being connected to the grounding end; and a processor respectively connected to the first switch and the second switch and configured to control the turning on and off of the first switch and the second switch.