Heating device

A vehicle comprising a heating device, wherein the heating device includes:

• a heating chamber provided with a coolant inlet for letting coolant enter and a coolant outlet for letting the coolant exit;
• a resistor located inside the heating chamber for heating the coolant, the resistor comprising a terminal passing through a wall of the heating chamber;
• and
• a printed circuit board located outside the heating chamber for controlling the resistor;
• wherein the wall is provided with a positioning pin projecting outside the heating chamber and having a hole, and further including:
• a connection module including a lead frame including a connection pin connected to the printed circuit board and a connector connected to the terminal of the resistor, an overmolding around the lead frame, the overmolding having a through-hole in which the positioning pin is inserted, and a sleeve inserted into the through-hole next to the positioning pin;
• and
• a fixing element including a rod and a head, the rod being inserted into successively the sleeve and the hole of the positioning pin, so that the sleeve is clamped between the positioning pin and the head.

A method for connecting, in a heating device, a terminal of a resistor located in a heating chamber provided with a coolant inlet for letting coolant enter and a coolant outlet for letting the coolant exit, the terminal passing through a wall of the heating chamber, to a printed circuit board located outside the heating chamber for controlling the resistor,

• wherein the wall is provided with a positioning pin projecting outside the heating chamber and having a hole, the method comprising:
• fixing (1008) a connection module to the wall by inserting a positioning pin of the wall projecting outside the heating chamber into a through-hole provided in an overmolding around a lead frame of the connection module, while connecting the terminal to a connector of the lead frame;
• inserting a rod of a fixing element into successively a sleeve located inside the through-hole and a hole of the positioning pin, so that the sleeve is clamped between the positioning pin and a head of the fixing element located at an end of the rod;
• and
• fixing the printed circuit board to the heating chamber, while connecting a pin of the lead frame to the printed circuit board.