Heating device for use thereof in a vehicle

A heating device for use thereof in a vehicle and configured for heating a thermal fluid, the heating device comprising:

• a chassis comprising a separating plate;
• an inlet port for the entry of the thermal fluid;
• an outlet port for the exit of the thermal fluid wherein the inlet port is in fluid communication with the outlet port through a chamber for the thermal fluid;
• and
• at least one heating plate fixed to the chassis comprising on a first side a heat generation region, and a second side, opposite the first side,
• wherein the heating plate has an essentially rectangular configuration with the inlet port and the outlet port in correspondence with one of the smaller sides of the rectangle,
• wherein the chamber for the thermal fluid is defined between the separating plate and the second side of the heating plate,
• wherein the heat generation region comprises at least one electric resistor,
• wherein the heating device further comprises three dissipating elements, with these dissipating elements being on the second side of the heating plate and positioned in correspondence and in thermal communication with at least one part of the heat generation region,
• wherein the three dissipating elements are made of aluminum,
• wherein each of the three dissipating elements is intended for being located on a portion of the second side of the heating plate,
• wherein each of the three dissipating elements comprises fins distributed according to a main direction,
• wherein the three dissipating elements are a first, a second, and a third dissipating element,
• wherein an attachment between the three dissipating elements and the heating plate is by means of brazing, and
• wherein the three dissipating elements determine a family of routes according to a broken straight path from the inlet port to the outlet port, wherein the broken straight path has a “U” shape, such that:
• the first and the third dissipating element extend along a direction established by a larger side of the rectangle, and
• the ends of the first and third dissipating elements located on the opposite side where the inlet port and the outlet port are located have a chamfered termination, leaving a free area occupied by the second dissipating element having an essentially triangular configuration.