Automation device for an electric drive device and an electric drive device

1 . An automation device for an electric drive device cabinet installation having a bottom-to-top cooling airflow and a blocking device located below the automation device, wherein an enclosure of said automation device comprises a front side and at least one cockled side face, the at least one cockled side face including a multitude of curved heat sink fins along said cockled side face extending from a first end side of the enclosure to a second end side of the enclosure, said first end side and said second end side being neighboring end sides, said first end side joining said second end side,

wherein each curved heat sink fin has:

a starting portion adjacent the first end side at which an angle of incidence a is measured between the inclination of the fin at the starting portion and a line parallel to the front side of the automation device; and

a terminal portion adjacent the second end side at which a turning angle β is measured between the inclination of the fin at the terminal portion and a line parallel to the second end side of the automation device; and

wherein the plurality of curved heat sink fins are arranged so that, when installed above said blocking device and exposed to said bottom to top cooling airflow in the cabinet, airflow is redirected from the front side toward the back of the enclosure to cool regions otherwise shadowed by the blocking device.

2 . The automation device according to claim 1 , wherein said enclosure is made from aluminium.

3 . The automation device according to claim 1 , wherein said enclosure is made from a material having a good thermal conductivity.

4 . The automation device according to claim 1 , wherein said multitude of curved heat sink fins are arranged on both cockled side faces of said enclosure.

5 . The automation device according to claim 1 , wherein said automation device is mounted to a DIN rail arranged in a cabinet back wall of the electric drive device cabinet installation.

6 . The automation device according to claim 1 , wherein said automation device is mounted to a cabinet back wall of the electric drive device cabinet installation.

7 . The automation device according to claim 1 , wherein the angle of incidence of said curved heat sink fins is between 0 degrees and 30 degrees.

8 . The automation device according to claim 1 , wherein the angle of incidence of said curved heat sink fins is between 10 degrees and 15 degrees.

9 . The automation device according to claim 1 , wherein the turning angle of said curved heat sink fins is between 60 degrees and 90 degrees.

10 . The automation device according to claim 1 , wherein the turning angle of said curved heat sink fins is between 75 degrees and 85 degrees.

11 . The automation device according to claim 1 , wherein said automation device comprises a front panel frame arranged in the front side of said enclosure, and wherein said at least one cockled side face includes a small space between said curved heat sink fins and said front panel frame.

12 . The automation device according to claim 1 , wherein said automation device comprises a front panel frame arranged in the front side of said enclosure, and wherein said the curved heat sink fins extend all the way to said front panel frame.

13 . The automation device according to claim 1 , wherein said automation device comprises a front part set in between two side faces, said two side faces extend all the way to the front side of said enclosure.

14 . An electric drive device cabinet installation, comprising:

an automation device,

a bottom-to-top cooling airflow, and

a blocking device located below the automation device,

wherein an enclosure of said automation device includes a front side and at least one cockled side face, the at least one cockled side face including a multitude of curved heat sink fins along said cockled side face extending from a first end side of the enclosure to a second end side of the enclosure, said first end side and said second end side being neighboring end sides, said first end side joining said second end side,

wherein each curved heat sink fin has:

a starting portion adjacent the first end side at which an angle of incidence a is measured between the inclination of the fin at the starting portion and a line parallel to the front side of the automation device; and

a terminal portion adjacent the second end side at which a turning angle 3 is measured between the inclination of the fin at the terminal portion and a line parallel to the second end side of the automation device; and

wherein the plurality of curved heat sink fins are arranged so that, when installed above said blocking device and exposed to said bottom to top cooling airflow in the cabinet, airflow is redirected from the front side toward the back of the enclosure to cool regions otherwise shadowed by the blocking device.

15 . The electric drive device according to claim 14 , wherein said electric drive device includes a frequency converter.

16 . The automation device according to claim 2 , wherein said multitude of curved heat sink fins are arranged on both cockled side faces of said enclosure.

17 . The automation device according to claim 2 , wherein said automation device is mounted to a DIN rail arranged in a cabinet back wall of the electric drive device cabinet installation.

18 . The automation device according to claim 2 , wherein said automation device is mounted to a cabinet back wall of the electric drive device cabinet installation.

19 . The automation device according to claim 2 , wherein the angle of incidence of said curved heat sink fins is between 0 degrees and 30 degrees.

20 . The automation device according to claim 3 , wherein said enclosure is made from aluminium, aluminium alloy, magnesium, copper, brass, plastic, polymer, polymer alloy, or synthetic resin.