Camera Heating Module With Soft Heater And Dual Protection

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Solution Overview

Problem

Conventional digital camera equipment struggles to operate effectively in cold environments due to temperature-sensitive components, leading to noise, malfunctions, and lens fogging, which can impact functionality and safety, especially in harsh climates.

Innovation Solution

A camera device heating module with a duo security protection mechanism, featuring a low-temperature actively heating component and an over-temperature actively turning off component, utilizing soft electric heaters and temperature-sensitive switch units to maintain optimal operating temperatures and prevent fogging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the camera device is exposed to cold environments, then the lens and electronic components freeze and fog, but adding heating accessories increases device complexity

Engineering Contradiction:
Improveoperation reliability in cold environmentVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The heating element is integrated into the existing camera device structure, merging the heating function with the camera body. The heating element is positioned to directly warm the lens and electronic components without requiring separate external heating devices, thus improving reliability in cold environments while minimizing the increase in device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The camera device performs self-heating using an integrated heating element that is activated when temperature drops below a threshold. The system automatically detects the cold environment and initiates heating without external intervention, allowing the device to maintain operational reliability in cold conditions through self-service heating functionality.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If heating components are added to prevent freezing, then the device can operate in cold zones, but the device complexity increases

Engineering Contradiction:
Improveadaptability to cold environmentVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The heating element serves multiple functions: it prevents freezing of electronic components, maintains operational temperature during cold weather, and can be activated based on environmental conditions. This multi-functional approach enhances adaptability to cold environments while avoiding the need for separate specialized heating systems, thereby limiting the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system monitors temperature parameters and activates the heating element only when the temperature drops below a predetermined threshold. This parameter-based control allows the device to adapt to cold environments dynamically, activating heating functionality only when needed, thus improving adaptability while minimizing unnecessary complexity during normal operating conditions.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the camera operates in rapidly changing climates, then the lens fogs due to temperature difference, but controlling temperature requires additional heating components

Engineering Contradiction:
Improvevideo clarity in changing climateVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The heating element is activated in advance when the temperature sensor detects a drop in ambient temperature, before fogging occurs on the lens. This preliminary heating action prevents the temperature difference between the internal and external environments that causes fogging, ensuring video clarity in rapidly changing climates while using a simple integrated heating system rather than complex temperature control mechanisms.

Inventive Principle:
Principle #10Preliminary action

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

The solution ensures the camera device operates within a stable temperature range, preventing malfunctions and fogging, thereby ensuring reliable performance in varying environmental conditions.

Implementation Method 1

a set of soft electric heater

Methodology Applied
Scientific EffectResistive heating: Joule Heating

Implementation Method 2

a low-temperature protecting circuit having a positive temperature coefficient

Methodology Applied
Scientific EffectPositive temperature coefficient effect: Thermistor

Implementation Method 3

an over-temperature protecting circuit having a negative temperature coefficient

Methodology Applied
Scientific EffectNegative temperature coefficient effect: Thermistor

Data Source

PatentUS20240048826A1Camera device, camera device heating module and method
Publication Date: 2024.02.08 FLYTECH TECH
  • US20240048826A1 patent drawing
  • US20240048826A1 patent drawing
  • US20240048826A1 patent drawing

AI summary

The present invention relates to a camera device heating module. The module includes a set of soft electric heater; and a control circuit block configured to electrically connected with and control the set of soft electric heater and including a low-temperature heating switch unit including a low-temperature protecting circuit having a positive temperature coefficient and connected with the set of soft electric heater; an over-temperature turnoff switch unit including an over-temperature protecting circuit having a negative temperature coefficient and connected with the set of soft electric heater; and a microcontroller unit electrically connected with the low-temperature heating switch unit and the over-temperature turnoff switch unit.