Patent ID: 7560663

Claim:
An electric heating module for heating air flow in vehicles, comprising at least one PTC heating element ( 10 ) and at least one heat dissipation area ( 13 ) adjacent thereto through which air can flow, having heat conducting ribs being in an effective contact to the PTC heating element ( 10 ) as well as a frame ( 1 ) combining the PTC heating element ( 10 ) and heat conduction ribs ( 13 ) to form a module, the heat dissipating area is formed generally circular, the at least one PTC heating element ( 10 ) is embodied flat with an upper and a lower contacting surface and is arranged such that the contacting surfaces are generally positioned in radial planes, while the heat conducting ribs ( 13 ) are provided with heat dissipating areas ( 20 ) by which they are supported indirectly via contact elements ( 11 , 12 ) conducting electric current and/or directly on the upper and/or the lower contacting surfaces of the PTC heating element ( 10 ), the frame ( 1 ) can be separated at a generally radially extending parting plane ( 5 ), and a spring element ( 14 ) is inserted into the frame ( 1 ) at the parting plane ( 5 ) of the frame ( 1 ) for axially pressing the heat conducting ribs ( 13 ) against the PTC heating element ( 10 ) and/or the contact elements ( 11 , 12 ).