Bench Seat Heating Assembly for Even and Safe Surface Warming
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Solution Overview
Problem
Existing heated seating solutions for benches suffer from uneven temperature distribution and complex fabrication, with designs being either dangerous to touch or lacking even heating.
Innovation Solution
A heated set comprising a graphite textile fabric heating element sandwiched between plastic insulation layers and a metal heat-conductive layer, with an electro-insulation foil and a decorative textile layer, equipped with electricity-conductive strips for even heat distribution and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating wire is placed between two plastic layers, then heating function is achieved, but temperature distribution becomes uneven and fabrication becomes complicated
Solution Approach 1:
The patent changes the physical state and form of the heating element from a wire to a graphite textile fabric. This material transformation allows the heating element to conform to complex shapes and distribute heat more evenly across the seating surface, resolving both the uneven temperature distribution and fabrication complexity issues
Solution Approach 2:
The patent employs a composite structure consisting of multiple layers: graphite textile fabric for heating, plastic insulation layers for electrical isolation, metal heat-conductive layer for thermal distribution, electro-insulation foil for safety, and textile fabric decorative layer for aesthetics. This composite approach optimizes each function separately while achieving overall system performance
2Temperature
If a heating wire is woven into textile fabric, then heating function is achieved, but the design becomes dangerous to touch and heating remains uneven
Solution Approach 1:
The patent introduces multiple intermediary protective layers between the heating element and the user: plastic insulation layers surrounding the graphite fabric and a metal heat-conductive layer with electro-insulation foil. These intermediaries transfer heat effectively while blocking electrical current, eliminating the electric shock danger while maintaining heating function
Solution Approach 2:
The patent changes the heating element from conductive wire to graphite textile fabric, which has different electrical and thermal properties. Graphite provides good thermal conductivity for even heating while the textile fabric form factor and surrounding insulation layers prevent direct electrical contact, reducing the danger of electric shock
3Ease of manufacture
If simple seats are made of wood, metal, stoneware or plastics, then manufacturing is simple, but seating comfort is poor and surfaces feel cold
Solution Approach 1:
The patent combines simple traditional seat materials (wood, metal, stoneware, or plastics) with a multi-layer heated composite structure. The base seat maintains manufacturing simplicity while the added heated layers provide thermal comfort and improved seating experience, resolving the contradiction between ease of manufacture and seating comfort
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 provides improved areal thermal distribution, simple assembly, and enhanced comfort with even heating, while ensuring safety by preventing contact with dangerous voltage.
Implementation Method 1
the heating element is formed by graphite textile fabric, which is placed in the envelope of upper and bottom layer of plastic insulation with metal heat-conductive layer separated from the heating element by the layer of electro-insulation foil
Implementation Method 2
metal heat-conductive layer separated from the heating element by the layer of electro-insulation foil placed over it
Implementation Method 3
upper and bottom layer of plastic insulation with metal heat-conductive layer separated from the heating element by the layer of electro-insulation foil
Data Source
AI summary
Areal shapeable heating element (2) covered by electro-insulation foil (3), with metal heat-conductive layer (4) placed above whereof, is placed on the seating part of the bench (1). The set is covered from the top and side of the bench (1) by carpet decorative layer (5).