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Electronic control unit for a heating device

A technology for electronic control equipment and heating devices, which is applied in seat heating/ventilation devices, electric heating devices, electrical components, etc., can solve the problems of increased assembly cost, increased system complexity, and increased number of components.

Pending Publication Date: 2021-11-09
GENTHERM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The necessity of a separate temperature sensor results in increased parts count and thus system complexity
This is followed by an increase in material costs, wherein the separate arrangement of the temperature sensors likewise leads to increased assembly effort
In general, temperature detection in heating devices using one or more heating wires is relatively complex

Method used

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  • Electronic control unit for a heating device
  • Electronic control unit for a heating device
  • Electronic control unit for a heating device

Examples

Experimental program
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Embodiment Construction

[0045] figure 1 and figure 2 The front side and the rear side of the circuit board 12 of the electronic control device 10 of the heating device 100 for a vehicle seat are shown.

[0046] A plurality of heat sources 14 a - 14 c are arranged on the circuit board 12 . Heat sources 14a-14c are integrated circuits, where heat source 14a is a microcontroller. The heat source 14b is a low-side driver (LS circuit), and the heat source 14c is a high-side driver (HS circuit).

[0047] Three temperature sensors 16 , 18 a , 18 b in the form of NTC resistors are arranged on printed circuit board 12 . The circuit board temperature sensor 16 is a component of the microcontroller 14 and is therefore thermally coupled to the microcontroller 14 a. Since the microcontroller 14a is disposed on the circuit board 12, the circuit board temperature sensor 16 is also thermally coupled to the heat source 14c.

[0048] The heating wire temperature sensors 18 a , 18 b are arranged in corner regions...

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PUM

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Abstract

The invention relates to an electronic control unit (10) for a heating device (100) of a vehicle seat, having a printed circuit board (12), on which one or more heat sources (14a-14c) are arranged, a printed circuit board temperature sensor (16), which is thermally coupled to at least one heat source (14a-14c) on the printed circuit board (12), at least one heating wire temperature sensor (18a, 18b), which is configured to be thermally coupled to a heating wire (102) of the heating device (100), and a data processing device (22), which is configured to determine the temperature of the heating wire (102) based on the temperature measured values (TS1, TS2, TS3) of the printed circuit board temperature sensor (16) and the at least one heating wire temperature sensor (18a, 18b).

Description

technical field [0001] The invention relates to an electronic control device for a heating device of a vehicle seat, the electronic control device having a circuit board on which one or more heat sources are arranged, a circuit board temperature sensor, the circuit board temperature sensor thermally coupled to at least one heat source on the circuit board; and at least one filament temperature sensor configured for thermal coupling to a filament of the heating device. [0002] Furthermore, the invention relates to a heating device for a vehicle seat, which has at least one heatable heating wire and an electronic control unit, which is configured to control the heating of the heating wire and to monitor the heating of the heating wire. temperature. [0003] The invention also relates to a vehicle seat having a seat cushion providing a seating surface for the user's buttocks, a backrest providing a resting surface for the user's back, and a heating device with integrated compon...

Claims

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Application Information

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IPC IPC(8): H05B1/02B60N2/56
CPCH05B1/0238B60N2/5685
Inventor D·S·西蒙
Owner GENTHERM INC
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