Patent ID: 11870284
Assignee: DR. ING. H. C. F. PORSCHE AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A passively cooled charging apparatus for electrically charging a mobile device in a vehicle, comprising:
an encapsulating housing having an interior defined by at least a first walls with at least one inlet opening that is open to a passenger compartment of the vehicle, and a second wall with at least one outlet opening that is open to the passenger compartment of the vehicle;
a charging device disposed in the interior of the encapsulating housing between the first and second walls, the charging device having an upwardly facing charging face facing toward the outlet opening and configured for placing the mobile device on the charging face in a contact-forming fashion, the charging device further having a cooling face facing oppositely from the charging face and toward the inlet opening; and
an electrical charging means for electrically charging the mobile device that is placed on the charging face, wherein
the at least one inlet opening is at a first vertical position in the encapsulating housing, the at least one outlet opening is at a second vertical position spaced above the first vertical position, and the charging device is at a third vertical position higher than the first vertical position and lower than the second vertical positions with the cooling face facing toward the at least one inlet opening and with the interior of the housing being configured so that cooling air flows from the at least one inlet opening to the at least one outlet opening without a downward flow component so that air in the interior of the encapsulating housing that is heated by the electrical charging means flows up by a chimney effect and exits the encapsulating housing upwardly via the outlet opening and is replaced by a cooling air flow that enters the interior of the encapsulating housing from the passenger compartment via the at least one inlet opening and flows up adjacent the charging device to replace the air heated by the electrical charging means that has exited the encapsulating housing via the at least one outlet opening, impinges directly upon both the cooling face and the charging face to cool the charging device by free convection.