| 发明名称 | Electric machine | ||
| 摘要 | The invention relates to an electric machine (10), particularly a generator or a starter generator for a motor vehicle, comprising a converter (64) which is arranged on a cooling element (53) and composed of semiconductor switching elements (58, 59) actuated synchronously with the phase frequency for rectifying a generator alternating voltage or supplying a motor from a DC voltage source (61). According to the invention, the cooling element (53) has a base plate (55) and cooling fins (54), wherein the ratio of the surface wetted by coolant to the volume of the cooling element (53) ranges from 0.5 to 1.5 [l/mm], preferably from 0.8 to 1.0 [l/mm]. | ||
| 申请公布号 | US9000719(B2) | 申请公布日期 | 2015.04.07 |
| 申请号 | US201013391437 | 申请日期 | 2010.07.16 |
| 申请人 | Robert Bosch GmbH | 发明人 | Paetzold Martin;Roesner Julian |
| 分类号 | H02J7/00;H02K11/04;H02P9/48;F02N11/04;F28D21/00 | 主分类号 | H02J7/00 |
| 代理机构 | Michael Best & Friedrich LLP | 代理人 | Michael Best & Friedrich LLP |
| 主权项 | 1. An electrical machine, having a converter (64), which is arranged on a cooling body (53) and includes semiconductor switching elements (58, 59) which are actuated synchronously with a phase frequency, for rectifying a generator alternating voltage or for feeding a motor from a DC voltage source (61), with the cooling body (53) having a base plate (55) and cooling ribs (54) and the ratio of a surface which is wetted by coolant to the volume of the cooling body (53) being in the range of from 0.5 [l/mm] to 1.5 [l/mm]. | ||
| 地址 | Stuttgart DE | ||