Electrical heating device comprising earthing means

An air-conditioning housing comprising:

• a heating device comprising:
• a heating body supplied with current for heating an air flow traversing said heating body, comprising heating elements traversed by said current and being located in electrically insulated tubes of the heating elements,
• said heating elements being controlled via a distribution unit comprising a metal heat dissipation plate;
• and
• an electrical connection element between the heating body and said metal heat dissipation plate;
• means for earthing a plurality of metal elements distributed in the heating body and the distribution unit,
• wherein said earthing means comprise a single earthing circuit traversing the heating body and the distribution unit and formed by arranging said metal elements in series through direct contact between said metal elements;
• wherein said electrical connection element comprises a clip with a flexible strip able to provide electrical continuity between said plate and the heating body.

A heating device comprising:

• a heating body supplied with current for heating an air flow traversing said heating body, comprising heating elements traversed by said current and being located in electrically insulated tubes of the heating elements,
• said heating elements being controlled via a distribution unit;
• and
• a single earthing circuit formed by a chain metal earthing elements distributed in the heating body and the distribution unit, wherein the metal elements directly touch in pairs, so as to provide electrical continuity inside the heating device, each metal element forming a link of the electrical chain.