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Electric heating system, in particular for a hybrid vehicle or electric vehicle

A technology for hybrid electric vehicles and electric vehicles, which is applied in the direction of power supply using engine-driven traction, ohmic resistance heating, and electric heating circuits, and can solve problems such as current load reduction and increased design complexity.

Active Publication Date: 2012-09-12
贝洱海拉温控系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the complexity of the design
[0003] In the coming automotive era of hybrid and electric vehicles, the associated increase in vehicle voltage to several 100V leads to a substantial drop in the current load of the electric heating system and its heating elements

Method used

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  • Electric heating system, in particular for a hybrid vehicle or electric vehicle
  • Electric heating system, in particular for a hybrid vehicle or electric vehicle
  • Electric heating system, in particular for a hybrid vehicle or electric vehicle

Examples

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Embodiment Construction

[0028] figure 1 A perspective view of a heating module 10 is shown, the configuration of which is shown in figure 2 Perspective and exploded view of the structure. The heating module 10 is designed for use in high-voltage on-board electrical systems of up to 400V in vehicles, especially hybrid or electric vehicles. The heating module 10 comprises a central electric heating element 12 having a layer composition as described below. Heating element 12 includes a ceramic substrate 14 that is divided into a heating zone 16 and a control zone 18 . Both districts 16 and 18 are located in figure 2 The upper side 20 of the ceramic substrate 14 . In the heating zone 16 , a resistive heating element 22 is provided on the ceramic substrate 14 in the form of a resistive heating conductor 24 , the current of which is controlled by a transistor 26 , in particular by means of a solder paste printing method. Transistors 26 and other electrical components 28 are located within control re...

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Abstract

The electric heating system, in particular for a hybrid vehicle or electric vehicle, is provided with a heating module (10). The heating module (10) is provided with an electrically insulating, heat-conducting ceramic substrate (14) which has a heating zone (16) and an actuation zone (18), which are spaced apart from one another. The heating module (10) has an electrical resistance heating element (22) which is arranged on the ceramic substrate (14), in the heating zone (16) thereof, and which is embodied as a resistance heating element (24) which is mounted on the ceramic substrate (14). In addition, the heating module (10) has a transistor (26) for controlling the current through the resistance heating conductor (24), wherein the transistor (26) and other optionally present electrical components (28) and conductor tracks (30) are arranged in the actuation zone (18) on the ceramic substrate (14). The heating module (10) is provided with a first cooling element (42) which is thermally coupled to the heating zone (16) of the ceramic substrate (14).

Description

technical field [0001] The invention relates to an electric heating system, which is especially suitable for use in hybrid or electric vehicles. Background technique [0002] Electric heating systems comprising PTC elements are known in the prior art. Since the 12V on-board electrical system is usually used in conventional cars, a considerable amount of current flows through the PTC element, which is controlled by the power transistor. Said transistors generate rather high power losses, so they must be cooled. This increases the complexity of the design. [0003] In the coming automotive era of hybrid and electric vehicles, the associated increase in vehicle voltage to several 100V leads to a substantial drop in the current load of the electric heating system and its heating elements. Since the electric heating system is now a full heating system, it requires an electric heat output, which is three times the electric heat output of the traditional PTC auxiliary heating sy...

Claims

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Application Information

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IPC IPC(8): H05B3/06H05B3/50B60L50/16
CPCH05B3/265H05B2203/003H05B2203/013H05B2203/016H05B2203/023B60L1/02H05B3/06
Inventor 拉尔夫·特拉普汉斯-迪特尔·勒林
Owner 贝洱海拉温控系统有限公司
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