Electrical heating element, and softening device therefor and control method
AssigneeGentherm Incorporated
InventorsZhiwu Liu, Zhangang Wen
Life of this patent
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AssigneeGentherm Incorporated
InventorsZhiwu Liu, Zhangang Wen
Estimating the term…
A method of securing an elongate electrical heating element to a carrier of a cushion, the method includes: providing a softening device having a body including a feeding passage, a gas passage, and an open cavity; conveying the electrical heating element through the feeding passage; driving heated air from a heat source through the gas passage and into the open cavity; heating the electrical heating element within the open cavity to a heat softening temperature; conveying the heated electrical heating element to a sewing head of a sewing apparatus; and securing the heated electrical heating element to the carrier with the sewing head to form a bending in the electrical heating element, the bending is configured to be secured on the cushion and is not able to be bent into a straight line or reshaped at room temperature without damaging the outer insulating layer or the electrical heating wire.
A method of securing an elongate electrical heating element to a carrier of a cushion, the electrical heating element comprising an electrical heating wire and an outer insulating layer, the method comprising:
A method of controlling a softening device configured to soften an elongate electrical heating element having an electrical heating wire and an outer insulating layer, the softening device comprising a heat source having an electrical heater device and an air pump device, and a temperature sensor, the method comprising:
Dependencies are inferred from the claim text.