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Control Device

A control device, electric heating device technology, applied in the direction of electric heating device, transportation and packaging, ohmic resistance heating circuit diagram, etc., can solve the problem of inapplicability

Pending Publication Date: 2022-01-07
EBERSPACHER CATEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Furthermore, sometimes a certain height must be bridged between the power switch and the housing cover, so that the elastomer strip known from DE 196 00 619 A1 is not suitable for placing the power switch on the cooling element under pretension

Method used

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Examples

Experimental program
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Embodiment Construction

[0034] figure 1 An embodiment of an electric heating device 100 is shown having a multi-part housing comprising a lower housing part 102 formed from plastic and an upper housing part 104 integrally formed from metal by die casting.

[0035] The lower housing part 102 is channel-shaped and encloses a heating chamber 106 into which inlet nozzles and outlet nozzles 110 protruding from a base 108 are provided. These inlet and outlet ports 110 are formed integrally with the lower housing part 102 by injection molding.

[0036] The inlet and outlet ports 110 protrude above the base 108 extending at right angles from the flat surface formed by the base 108 .

[0037] A plurality of PTC heating assemblies 112 are shown positioned between the upper housing part 104 and the lower housing part 102, the plurality of PTC heating assemblies 112 having PTC elements disposed within the PTC heating Conductors make electrical contact. The strip conductors are electrically connected via conta...

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PUM

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Abstract

The invention relates to a control device (148), in particular for an electric heating device (100) having a PTC element as an auxiliary heater in a motor vehicle. The control device comprises a control housing (146) in which a printed circuit board (122, 300) equipped with at least one power switch (308) is arranged, and the printed circuit board is placed on a cooling surface (510) in a thermally conductive manner by means of an elastic pre-tensioning element under the action of a pre-tensioning force. The purpose of the present invention is to provide a control device which allows good heat transfer between a power switch and a cooling surface and requires only few components and thus can be manufactured more easily and at a lower cost, for this purpose, it is proposed that the pre-tensioning element is formed from an elongated piece of a soft elastic plastic part (550) extruded with at least one through-hole.

Description

technical field [0001] The invention relates to a control device, in particular for an electric heating device with a PTC element as an auxiliary heater in a motor vehicle. Background technique [0002] Control devices, in particular for electric heaters with ceramic PTC elements for heating motor vehicles, are well described in the prior art, for example in EP 1 872 986 A1 or EP 2 337 425 A1. The control device in such electric heating devices usually has a control housing which surrounds the control part and which is provided with a plug connection for connecting the control signal and / or the current to be controlled. The above example and the electric heating device of EP 3 334 242 A1 realize the concept in which the control device is provided integrally with the power supply part. The control device has at least one power switch which emits a power loss during operation. This is usually provided for the medium to be heated. The power switch is therefore not only provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/22H05B3/24H05K7/20
CPCB60H1/2215H05B3/24H05K7/2039B60H2001/2268B60H2001/2228H05B2203/02H05B3/0019H05B1/0236
Inventor 凯-法比安·博克勒库尔特·瓦尔茨
Owner EBERSPACHER CATEM
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