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Electric heaters for motor vehicles

A technology for electric heaters and motor vehicles, which is applied to ohmic resistance heating, ohmic resistance heating parts, heating elements, etc., can solve the problems of expensive heater manufacturing and difficult operation of vehicle electrical systems, and achieves a small space and low inrush current. Effect

Active Publication Date: 2022-04-15
EBERSPACHER CATEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, PTC heating elements exhibit high inrush currents, which makes such heaters more expensive to manufacture and more difficult to operate in the vehicle electrical system

Method used

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  • Electric heaters for motor vehicles
  • Electric heaters for motor vehicles
  • Electric heaters for motor vehicles

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Experimental program
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Embodiment Construction

[0039] According to the present invention, for each heating stage, the electric heater uses a series connection with two different types of heating elements, that is, a PTC heating element and another (resistance) heating conductor, which (resistance) heating the conductor It also plays an inductance. Two types of heating elements are preferably pre-forming a heat generating element having a predetermined size such that they can be used in any manner, ie mutually exchange to construct an electric heater.

[0040] Electric heaters include a plurality of dimensions of heat generating elements including a PTC component or a heating wire. In this manner, each component of the electric heater consisting of a PTC heating element and a heating element having a heating wire can be constructed in any manner. Each heat generating element is connected in series (electrically) connection in the electric heater such that a heating stage comprises at least one PTC heating element and a heat gen...

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Abstract

The invention relates to an electric heater for heating a medium, preferably water or air. For heating the medium, one or more individually controllable heating stages are provided. Each heating stage is equipped with at least one PTC heating element. In each heating stage, at least one additional heating element is connected in series with the PTC heating element. The additional heating element is designed as an inductance and for this purpose comprises a heating conductor wound in the form of a coil. In this way, the inrush current of the PTC heating element can be reduced and the waste heat generated can be released into the medium to be heated. Since the coil of the inductor is formed of a heating conductor, it also helps to heat the medium. In this way, efficient heating can be achieved in a small installation space.

Description

Technical field [0001] The present invention relates to an electric heater for a motor vehicle comprising a plurality of heating elements, particularly a PTC heating element. Background technique [0002] Electric heaters are used as a auxiliary heater in a motor vehicle to supplement the heating of the passenger compartment and other components, which is mainly achieved by the heat of the engine, or, for example, the heating vehicle is also allowed when the vehicle is stationary. [0003] In the case where the drive unit of the motor vehicle does not release or there is no sufficient heat to heat or adjust the vehicle with an air conditioner, the electric heater is particularly important for the vehicle having electrically driven or mixed drive. When a heater for electric or mixed-driven vehicles is suitable for providing a process of providing a process of providing in various system components of a motor vehicle in addition to the heat required to heat the motor vehicle (for e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/22
CPCB60H1/2215H05B1/0236H05B3/06H05B3/265H05B3/40H05B2203/02H05B2203/023B60H1/2225H02H5/042
Inventor 托马斯·格施温德
Owner EBERSPACHER CATEM
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