Electrical motor vehicle air heater with grounded housing
US6810203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2003 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Feb 26, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H3/062
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An electrical air heating apparatus, especially for a motor vehicle, with electrical heating elements (3) for heating air and a housing (1) which has a ground connection (1a), an electrical supply connection and an electronic circuit (7) to control the supplying of electrical power to the heating elements (3). In the housing (1), the heating elements (3) are arranged in electrical contact with the ground connection and the electrical supply connection. The housing (1) is made of an electrically conducting material, for example, aluminum and is constructed in one piece with a molded-on ground connection (1a). The heating elements (3) and the electronic circuit (7) are arranged in direct electrical contact with the housing (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.