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Power module for the control of electric motors

  • US 5,966,291 A
  • Filed: 11/03/1997
  • Issued: 10/12/1999
  • Est. Priority Date: 11/06/1996
  • Status: Expired due to Term
First Claim
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1. Power module for the control of electric motors, consisting ofa power unit (1) with a circuit arrangement on the upper side (131) of a substrate (13) with power semiconductor components (11),a heat sink (2) with a cooling medium (23) flowing through it, which has a heat sink (21) with structured surface formed as an insert section onto which the underside (133) of the substrate (13) is directly fitted,a control unit (3) with semiconductor components (32) arranged on a carrier (31) which is arranged in parallel to and at a given distance from the substrate (13) of the power unit (1),contact pins (51) between the substrate (13) of the power unit (1) and the carrier (31) of the control unit (3) for the connection and contacting of the circuit arrangement of the power unit (1) with the semiconductor components (32) on the control unit (3),a housing body (61) which encloses the power unit (1) and the control unit (3),two conductor bars (55, 56) which are led parallel to the substrate (13) of the power unit (1) and the carrier (31) of the control unit (3) and out through the housing body (61) for the power supply to the circuit arrangement of the power unit (1),connecting bars (52, 53, 54), which are led vertically from the substrate (13) of the power unit (1) and the carrier (31) of the control unit (3) out of the housing body (61) and connected to the circuit arrangement of the power unit (1) and/or the semiconductor components (32) of the control unit (3), for the application of control signals for the control of the power module and/or to tap off output signals (R, S, T) from the power module.

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