Automobile Seat Thermal Control with Zoned Heating and Airflow Cooling
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Solution Overview
Problem
Existing automobile seat heating systems experience heat accumulation leading to uniform temperature distribution, which diminishes the effectiveness of localized massage and heating effects.
Innovation Solution
A heating and heat-dissipation synergistic thermal control device with independently controlled heating areas and pneumatic massage systems, combined with a heat dissipation system, where the control system coordinates simultaneous operation to maintain temperature differences through air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heating cushion operates continuously with high power density, then the heating effect is improved, but heat accumulates on the seat surface causing uniform temperature distribution that reduces massage effectiveness
Solution Approach 1:
The heating system operates in periodic cycles with heating phases followed by heat dissipation phases. The control system alternates between activating heating units and allowing heat dissipation through airbags and breathable materials, preventing continuous heat accumulation while maintaining effective heating during active phases
Solution Approach 2:
The patent extracts heat from the seat surface during non-massage phases using the airbag layer and breathable base material as heat dissipation pathways. This separates the heating function from the massage function in time, allowing heat to be removed when not needed for therapeutic effect
2Ease of operation
If the entire seat surface is heated uniformly, then overall comfort is improved, but localized temperature differences needed for effective massage heating are reduced
Solution Approach 1:
The heating system is divided into multiple independently controllable heating units corresponding to different body zones. Each heating unit can be activated separately based on detected body position, creating localized temperature differences where needed while keeping other areas at comfortable ambient temperatures
Solution Approach 2:
Different regions of the seat have different heating characteristics and control strategies. The system applies localized heating with prominent temperature differences specifically at massage contact points, while peripheral areas maintain uniform comfortable temperatures, optimizing both comfort and therapeutic effect
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
Enhances the localized heating and massage experience by maintaining prominent temperature differences between hot jacking areas and peripheral regions, addressing heat accumulation issues.
Implementation Method 1
the breathable base material has air permeability, and the air channel structure is communicated with the breathable base material
Implementation Method 2
the air channel structure is communicated with the breathable base material, the second suspension area and the heat dissipation driving device, and when the heat dissipation driving device is in operation, air flows from the air channel structure to the heat dissipation driving device
Data Source
AI summary
Heating and heat-dissipation synergistic thermal control device and automobile seat include: heating system, pneumatic massage system, heat dissipation system and control system. The heating system includes heating cushion layer. The heating cushion layer has several heating areas. Each heating area is disposed with independently controlled islanding heating units. The pneumatic massage system includes airbag layer. The airbag layer has airbag groups disposed corresponding to each heating area. Each airbag group has the first airbag body. The first airbag body is connected with driving device. When the first airbag body is in inflatable state, second suspension area is formed between peripheral side of the first airbag body and the heating cushion layer and the seat body. The heat dissipation system dissipates heat of the second suspension area; and the control system controls the heating system, pneumatic massage system and heat dissipation system to operate synergistically with the set control strategy.