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US 10,833,596 B1Granted
Integrated power unit for a power supply device
AssigneeFord Global Technologies, LLC
InventorsLihua Chen, Fan Wang, Fan Xu, Baoming Ge
Life of this patent
Estimating the term…
Abstract
A DC to AC inverter includes a plurality of power units. Each power unit has a pair of switches, a DC linking capacitor, AC and DC bus bars, and a monolithic insulating material that encapsulates the switches, capacitor and bus bars. Each switch is sandwiched between one of the AC bars and one of the DC bus bars. The monolithic insulating material exposes external surfaces of at least one the bus bars sandwiching each switch.
Claims20
A vehicle comprising:
- an electric machine configured to propel the vehicle;
- a battery configured to provide electrical power to the electric machine;
- and
- an inverter configured to convert DC electrical power from the battery into AC electrical power and to deliver the AC electrical power to the electric machine, the inverter comprising an array of power units,
- each power unit having,
- a pair of switching circuits,
- a DC linking capacitor,
- AC and DC buses, each of the AC and DC buses comprising a series of interconnected plates and terminals, and
- a monolithic insulating material that encapsulates the switching circuits, capacitor, and buses, wherein each switching circuit is sandwiched between one of the plates that comprises a portion of the AC bus and one of the plates that comprises a portion of the DC bus such that one of the plates completely overlays an upper surface area of each switching circuit and one of the plates completely overlays a lower surface area of each switching circuit, wherein each switching circuit is electrically connected to the DC linking capacitor via the DC bus, and wherein the monolithic insulating material exposes external surfaces of at least one the plate sandwiching each switching circuit, wherein each of the exposed external surfaces faces away from and is disposed on an opposing side of the respective plate relative to one of the switching circuits.
6 more elements
A DC to AC inverter comprising:
- a plurality of power units each having a pair of switches, a DC linking capacitor, AC and DC buses, each of the AC and DC buses comprising a series of interconnected plates and terminals, and a monolithic insulating material that encapsulates the switches, capacitor, and buses, wherein each switch is sandwiched between one of the plates that comprises a portion of the AC bus and one of the plates that comprises a portion of the DC bus, such that one of the plates completely overlays an upper surface area of each switch and one of the plates completely overlays a lower surface area of each switch, and wherein the monolithic insulating material exposes external surfaces of at least one the plates sandwiching each switch, wherein each of the exposed external surfaces faces away from and is disposed on an opposing side of the respective plate relative to one of the switches.
A power unit for a DC to AC inverter comprising:
- AC and DC buses, each of the AC and DC buses comprising a series of interconnected plates and terminals;
- a pair of switches electrically connected to a DC linking capacitor via the DC bus, each switch being sandwiched between one of the plates that comprises a portion of the AC bus and one of the plates that comprises a portion of the DC bus, such that one of the plates completely overlays an upper surface area of each switch and one of the plates completely overlays a lower surface area of each switch, and
- a monolithic insulating material encapsulating the switches, capacitor, and buses, wherein the monolithic insulating material exposing external surfaces of at least one the plates sandwiching each switch, wherein each of the exposed external surfaces faces away from and is disposed on an opposing side of the respective plate relative to one of the switches.
Dependencies are inferred from the claim text.