Power conversion arrangement with cooling fan
AssigneeBRUSA Elektronik AG
InventorVeit PFÄTTISCH
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Abstract
A power conversion arrangement serves as a wireless charging station (ground pad module) for the energy supply of a wireless charging device of an electrical vehicle. It comprises a magnetic subassembly, an electronic subassembly, and as heat dissipation means with a radial fan for cooling the magnetic subassembly and/or the electronic subassembly. The radial fan with a fan wheel conveys the air into at least one outlet channel past at least one cutoff edge. The cutoff edge with regard to a rotation axis of the radial fan and in a region of proximity to the fan wheel is angled about an angle, denoted herein as an effective edge angle (k) of at least twenty degrees.
Claims15
A power conversion arrangement for the conversion of electrical power of an electrical feed current into electromagnetic power of an oscillating electromagnetic field, the power conversion arrangement comprising:
- a magnetic subassembly for receiving or delivering an electrical alternating current and/or for emitting an oscillating electromagnetic field,
- an electronic subassembly for receiving the electrical feed current and for its conversion into an electrical alternating current for the supply of the magnetic subassembly, and
- a heat dissipation means for dissipating heat which is generated by the electronic subassembly and/or the magnetic subassembly during its respective power conversion operation,
- wherein the heat dissipation means comprise at least one radial fan arranged for the conveying air for cooling the magnetic subassembly and/or the electronic subassembly, and
- wherein the radial fan with a fan wheel conveys the air into at least one outlet channel past at least one cutoff edge, wherein the cutoff edge with regard to a rotation axis of the radial fan and in a region of proximity to the fan wheel is angled about an angle, hereinafter denoted as an effective edge angle (k), of at least twenty degrees.
Dependencies are inferred from the claim text.