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Electrical heating device with PTC element and electrical supply lines as heat conductor and operating fluid tank with such a heating device

A technology of electric heating device and PTC element, which is applied in the field of motor vehicle working fluid tank, electric heating device, and urea solution tank, and can solve problems such as complex structure

Active Publication Date: 2017-09-12
ROECHLING AUTOMOTIVE SE & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The disadvantage of this type of electric heating device is that in order to quickly heat the correspondingly large volume range in the working fluid tank, it requires either a large volume or a complex PTC element with a large surface area

Method used

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  • Electrical heating device with PTC element and electrical supply lines as heat conductor and operating fluid tank with such a heating device
  • Electrical heating device with PTC element and electrical supply lines as heat conductor and operating fluid tank with such a heating device

Examples

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Embodiment Construction

[0040] In the only figure 1 In the middle is the motor vehicle working fluid tank of the present invention generally labeled 10. The longitudinal section of the tank 10 is shown in a section parallel to the bottom. After the completion of the installation in the motor vehicle, the gravity action direction g is perpendicular to the cross section and perpendicular to the figure 1 The drawing plane stretches out. The section passes through the lower shell of the tank 10. thus figure 1 The observer looks towards the bottom 12 of the tank. An electric heating device of the present invention generally marked as 14 is arranged on the bottom of the tank, that is, towards figure 1 The direction of the observer.

[0041] in figure 1 The hatched line in the middle shows the side wall 16 cut by the cross section, which is substantially perpendicular to figure 1 The drawing plane extends.

[0042] specifically defined: figure 1 Only a rough schematic diagram of the motor vehicle working fluid...

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PUM

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Abstract

An electrical heating device (14) for an operating fluid tank (10) of a motor vehicle, in particular for a tank (10) for storing aqueous urea solution, having at least one PTC element (34, 36, 38, 40, 42, 44), that is disposed connecting two electrical conductors (24, 26, 28, 29), characterized in that the electrical heating device (14) comprises a multitude of PTC elements (34, 36, 28, 40, 42, 44), of which each is connectively arranged to two electrical conductors (24, 26, 28, 29), wherein at least one of the electrical conductors (24, 26, 28, 29) is configured as a laminar conductor component and forms a heat conductor for transferring the heat produced in the PTC element (34, 36, 38, 40, 42, 44) to a volume portion of the outside environment (18) of the electrical heating device (14), which is adjacent to the electrical heating device (14).

Description

Technical field [0001] The invention relates to an electric heating device for a working fluid tank for a motor vehicle, particularly a tank for storing a water-like urea solution, which comprises at least one PTC element which connects two electric conductors. [0002] In addition, the present invention relates to a tank having such an electric heating device, particularly a motor vehicle working fluid tank, preferably a tank storing an aqueous urea solution for selective catalytic reduction. Background technique [0003] From DE 10 2009 028 113 A1, an electric heating device of this type and a tank equipped with the heating device are known. [0004] In the disclosed solutions of this type, the power supply wires are respectively electrically insulated through the tank wall, more specifically: the tank lid, and are in contact with the PTC element, which is the only one between the two power supply wires in the tank Conductive connection. In such publications, plastics having PTC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14H05B3/02
CPCH05B3/02H05B3/141F01N2610/02F01N2610/107F01N3/2066H05B3/146H05B3/286H05B2203/02H05B2203/021Y02A50/20Y02T10/12F01N2610/10
Inventor 法布里齐奥·奇尼卢卡·马里尼伊凡·德·梅特里弗朗西斯卡·布鲁诺利斯特凡诺·达尔佩兹
Owner ROECHLING AUTOMOTIVE SE & CO KG