Motorcycle Seat Heater Layout for Accurate Temperature Sensing
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Solution Overview
Problem
The accuracy of temperature detection by a temperature sensing element in a seat heater is compromised when it is spaced from the heater wire, and it may be damaged or cause discomfort due to direct contact with the occupant.
Innovation Solution
The temperature sensing element is positioned in the vicinity of the heater wire, specifically in the front portion of the seat pad, and protected by a recess and a flexible plate-shaped member, with a reduced density of heater wires in the front region to minimize occupant contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensing element is disposed in the vicinity of the heater wire, then the temperature detection accuracy is improved, but the temperature sensing element may receive a load from the occupant causing damage or discomfort
Solution Approach 1:
The patent positions the temperature sensing element in the front portion of the pad along the front-rear direction, while the heater wire is disposed in the rear portion. This spatial separation in the front-rear dimension allows the sensing element to remain close to the heater wire for accurate temperature detection while being positioned away from the occupant's contact area, thus avoiding mechanical load and potential damage.
2Reliability
If the temperature sensing element is spaced from the heater wire, then the temperature sensing element is protected from occupant load, but the accuracy of temperature detection around the heater wire is lowered
Solution Approach 1:
The patent applies local quality by creating different functional zones within the pad: the front portion houses the temperature sensing element for protected temperature monitoring, while the rear portion contains the heater wire for heating. This localized functional differentiation allows each component to perform its function optimally without compromising the other.
3Reliability
If the temperature sensing element is disposed in the front portion of the pad, then it is less likely to receive load from the occupant, but it may be farther from the heater wire reducing temperature detection accuracy
Solution Approach 1:
The patent resolves this contradiction by utilizing the front-rear dimension of the pad effectively. The temperature sensing element is positioned in the front portion while the heater wire is positioned in the rear portion, maintaining adequate proximity for accurate temperature detection through the pad material while ensuring the sensing element remains outside the primary occupant contact zone.
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 temperature sensing element is less likely to be damaged and causes minimal discomfort, maintaining accurate temperature detection while efficiently heating the rear and thigh areas of the occupant.
Implementation Method 1
a heater wire (62) provided on the base fabric
Implementation Method 2
a temperature sensing element (20C) provided on a front portion of the base fabric
Data Source
AI summary
A seat for a saddle-ride type vehicle includes a bottom plate extending in a front-rear direction, a pad placed on the bottom plate and extending in the front-rear direction, a skin material covering the pad, and a heater provided on an upper portion of the pad, wherein the heater includes a base fabric extending in the front-rear direction on the upper portion of the pad, a heater wire provided on the base fabric, and a temperature sensing element provided on a front portion of the base fabric, and the temperature sensing element is disposed in a front portion of the pad.