Seat Backrest Heating Panel with Foam Insulation and Compression Assembly
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Solution Overview
Problem
Current seat backrest heating devices are inefficient and complex to integrate, resulting in inadequate heat distribution to rear seat passengers in a vehicle passenger compartment.
Innovation Solution
A seat backrest design comprising a foam insulating layer, a heating layer, and an outer layer, assembled by compression, with optional air layers and a radiation-reflective layer to enhance heat distribution and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating device is integrated into the backrest of the seat, then direct heating of the space behind the front seats is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The heating device is segmented into three distinct functional layers: an insulating layer (foam) to retain heat, a heating layer (with heating elements) to generate heat, and an outer layer to form the backrest surface. This segmentation allows each layer to perform its specific function efficiently while simplifying the overall integration process into the seat backrest.
Solution Approach 2:
The invention uses a composite structure combining different materials with complementary thermal properties: foam insulation material for heat retention, heating element material for heat generation, and outer covering material for structural integrity. This composite approach enables efficient heat transfer to the rear passenger space while maintaining structural simplicity.
2Temperature
If heated air is blown from the front seats, then the space in front of the front seats receives adequate heat, but the space behind the front seats receives insufficient heat
Solution Approach 1:
The backrest heating device acts as an intermediary thermal transfer mechanism. The heating layer generates heat that is conducted through the insulating foam layer to the outer layer, which then transfers heat to the air space behind the front seats. This intermediary structure enables direct heating of the rear passenger area without relying on air circulation from the front seats.
3Volume of moving object
If the heating layer is in contact with the insulating layer over the entire surface, then the heating device becomes more compact, but the manufacturing precision requirements increase
Solution Approach 1:
The heating layer and insulating layer are merged into a single integrated assembly where the heating elements are embedded within or attached to the foam insulation. This merging eliminates the need for separate mounting structures and reduces assembly steps, achieving compactness without significantly increasing manufacturing precision requirements.
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 design provides efficient and uniform heating to rear seat passengers by reducing heat loss and directing heat effectively through conduction, convection, and radiation, while simplifying the integration process.
Implementation Method 1
an insulating layer which is a foam
Implementation Method 2
a heating layer
Implementation Method 3
The heating of the space behind the backrest thus also occurs by convection through the holes
Implementation Method 4
The heating of the space behind the backrest thus also occurs by convection through the holes
Implementation Method 5
a radiation-reflective layer, in contact with the insulating layer and between the second air layer and said insulating layer
Implementation Method 6
a radiation-reflective layer, in contact with the insulating layer and between the second air layer and said insulating layer. The heat emitted by the heating layer is thus directed more effectively to behind the backrest
Data Source
AI summary
A seat for a passenger compartment, for example a vehicle passenger compartment. The seat has a backrest that includes a heating device for heating the space behind the backrest. The heating device includes, from front to back of the backrest, an insulating layer which is a foam, a heating layer, and an outer layer which forms the back of the backrest. The assembly of the insulating layer and the heating layer is achieved by compression on at least their peripheries.