Additional device for electrically heating an air flow included in a ventilation, heating and/or air-conditioning installation of an automobile vehicle

Additional device for electrically heating an air flow included in a ventilation, heating and/or air-conditioning installation of an automobile vehicle

  • CN 101,334,213 B
  • Filed: 04/28/2008
  • Issued: 06/10/2015
  • Est. Priority Date: 04/27/2007
  • Status: Active Grant
First Claim
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1. an electric heater unit (1), comprise calandria (3) that air-flow to be heated (2) flows through and the control device (5) for operating described calandria (3), described calandria (3) comprises at least one heating element heater (4), the operation of described heating element heater (4) is controlled by the electric switch (6) of the part forming described control device (5), described electric switch (6) is electrically connected to described heating element heater (4) via electric conductor (11), it is characterized in that, described electric conductor (11) to dissipate described heat energy by exchanging with air-flow to be heated (2) heat energy produced by described electric switch (6), and described electric conductor (11) forms the dissipation path (13) being used for described heat energy, described path (13) extend between described electric switch (6) and corresponding heating element heater (4), and be, described path (13) be also included in the surface (12) of printed circuit (7) upper formed electric rail (8), be connected to the first end (15) of the described electric conductor (11) of described electric rail (8) and the first terminal (14) of described electric switch (6) by welding.

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