Flexible seat heating device with temperature being self controlled

Abstract

The invention relates to a flexible seat heating device with temperature being self controlled, which comprises at least one heating unit and two power supply connecting ends connected with the heating unit, wherein the heating unit comprises a pair of basis heating conduction electrodes at one side of a flexible insulation film, and comb-shaped branch electrodes which are connected with the basis heating conduction electrodes and are mutually interdigitated; heating elements with positive temperature coefficients are respectively attached on the two groups of comb-shaped branch electrodes; and the two basis heating conduction electrodes are respectively connected with the two power supply connecting ends. The invention provides a safe and reliable heating technology with the temperature being self controlled, so that simple, easy and reliable heating and temperature control can be realized through self physical impedance conversion property of the heating elements. The existence of the phenomena that temperature accuracy of a comfort system of the seat on the current produced automobile is poor and the occurrence of temperature control part failure is high can be effectively reduced, the stability of the system is improved, thus the occurring rate of the failure in the automobile is reduced, the reliability of the comfort system of the seat of a road transport media is strengthened, the structure is simplified, and the cost is reduced.

Description

technical field [0001] The invention is a self-temperature-controlling PTC flexible seat heating device, which is mainly used in electric seat heating systems of automobiles. Background technique [0002] With the rapid development of modern automobile technology, electric seat heating system, as an important vehicle comfort system, is widely welcomed by drivers and passengers. Compared with the on-board air conditioning system, it has a more direct, rapid and energy-saving seat heating effect. It has gradually become a basic functional requirement for vehicles in cold winter regions, and has been recognized by the market more and more quickly. [0003] In the current application of the electric seat heating system of the car, the temperature control of the electric seat heating system is prone to failure due to factors such as the influence of the application environment and the limitations of the original technology. The result of its failure often leads to the abnormal o...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an electric heating device using intelligent seat self-control temperature, which is suitable for seat electric heating and temperature control of the seat comfort system of the vehicle, and solves the problem that the temperature control in the prior art is prone to failure. And the problem of high cost due to the complex structure of the control system

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