Power converter
A power converter includes: a first circuit board; a cooling body; a housing, wherein the cooling body and the housing surround the first circuit board; a heat-generating component which is arranged on a side of the first circuit board facing the cooling body and which is coupled to the cooling body in a heat-conducting manner; and further components. The cooling body, the housing and the first circuit board border a first volume, in which the heat-generating component is arranged. The cooling body, the housing and the first circuit board border a second volume, in which the further components are arranged.
1. A power converter, comprising:
a first circuit board;
a cooling body;
a housing, wherein the cooling body and the housing surround the first circuit board;
a heat-generating component, which is arranged on a side of the first circuit board facing the cooling body, and which is coupled to the cooling body in a heat-conducting manner; and
further components,
wherein the cooling body, the housing and the first circuit board delimit a first volume, in which the heat-generating component is arranged,
and
wherein the cooling body, the housing and the first circuit board delimit a second volume, in which the further components are arranged.
2. The power converter according to claim 1 , further comprising:
a ventilator, which is arranged in the second volume and which generates a circulation of air in the second volume.
3. The power converter according to claim 2 , wherein
the cooling body, the housing and the first circuit board are geometrically configured such that the circulation of air in the second volume is greater than a circulation of air in the first volume.
4. The power converter according to claim 3 , wherein
the circulation of air is more than 10 times greater than the circulation of air in the first volume.
5. The power converter according to claim 3 , wherein
the housing is configured such that the ventilator executes the circulation of air exclusively within the housing.
6. The power converter according to claim 2 , wherein vthe ventilator is an axial ventilator having an axis of rotation oriented in parallel with the first circuit board.
7. The power converter according to claim 2 , further comprising:
a second circuit board, which is oriented in a plane-parallel arrangement to the first circuit board.
8. The power converter according to claim 7 , further comprising:
a retaining element, wherein the retaining element holds the ventilator and the second circuit board.
9. The power converter according to claim 8 , wherein
the retaining element is geometrically configured such that an airflow, which is generated via the ventilator, is directed into the second volume.
10. The power converter according to claim 1 , wherein
the cooling body comprises cooling ribs on one side only, which side is averted from the heat-generating component.
11. The power converter according to claim 1 , wherein
the power converter has a protection rating of IP 66 or higher.
12. The power converter according to claim 1 , wherein
the power converter is a regenerative power supply unit or a frequency converter.