DEVICE WITH CONNECTION ARRANGEMENT

Abstract

In a device with connection arrangement, the connection arrangement includes a connection unit and an EMC unit. The EMC unit includes a first electrical plug connector which is connected, e.g., plug-connected, to a mating plug connector, e.g., corresponding to the electrical plug connector, of the connection unit. The EMC unit includes a connection for supply lines, e.g., a mains connection, an AC supply mains connection, etc. For example, the supply lines are adapted to supply the device with electrical power.

Claims

1-15. (canceled)

16. A device, comprising: a connection device including a connection unit and an EMC unit, the EMC unit including a first electrical plug connector connected and/or plug-connected to a mating plug connector of the connection unit and including a connection adapted to connect to supply lines.

17. The device according to claim 16, wherein the supply lines include a mains connection and/or an AC supply mains connection and are adapted to supply the device with electrical power.

18. The device according to claim 16, wherein the EMC unit includes a housing formed of a lower part and an upper part, a region of the upper part being arranged as a partial region of a hollow cylinder including an end face of the hollow cylinder and a jacket section of the hollow cylinder, the partial region including first slots passing through the upper part, each of the first slots extending radially relative to a cylinder axis of the hollow cylinder and being spaced and/or evenly spaced from one another in a circumferential direction.

19. The device according to claim 16, wherein the EMC unit includes components adapted to improve electromagnetic compatibility and/or to suppress interference.

20. The device according to claim 19, wherein a circuit board is fitted with the components and the first plug connector.

21. The device according to claim 16, wherein the EMC unit includes a mains choke and/or Y capacitors.

22. The device according to claim 21, wherein a circuit board is equipped with the mains choke and/or the Y capacitors and the first plug connector.

23. The device according to claim 16, wherein the EMC unit includes a housing formed from a lower part and an upper part.

24. The device according to claim 23, wherein the housing encloses components, a main choke, and/or Y capacitors of the EMC unit and the first plug connector.

25. The device according to claim 20, wherein the circuit board is enclosed by a housing.

26. The device according to claim 23, wherein the lower part is clip-connected to the upper part.

27. The device according to claim 23, wherein a region of the upper part is formed as a partial region of a hollow cylinder, the partial region including an end face of the hollow cylinder and a jacket section of the hollow cylinder.

28. The device according to claim 27, wherein the partial region includes first slots passing through the upper part, each of the first slots extending radially relative to a cylinder axis of the hollow cylinder and being spaced and/or evenly spaced from one another in a circumferential direction.

29. The device according to claim 28, wherein each of the first slots covers a same radial distance range in the radial direction and/or the first slots are formed geometrically identical to one another.

30. The device according to claim 28, wherein the partial region includes further slots passing through the upper part, each of the further slots, relative to the cylinder axis of the hollow cylinder, extending both partially over the jacket section and partially in the end face.

31. The device according to claim 30, wherein the further slots are spaced apart from the first slots and/or are spaced apart in the circumferential direction and/or a radial distance range covered by the first slots overlaps with a radial distance range covered by the further slots.

32. The device according to claim 27, wherein the partial region at least partially encloses a mains choke and/or a cylindrical mains choke.

33. The device according to claim 32, wherein a shortest distance between each point of the partial region and the mains choke is less than a maximum distance value and/or a maximum distance value that equals one centimeter.

34. The device according to claim 16, wherein the connection unit includes a printed circuit board enclosed by a cover and fitted with the mating plug connector.

35. The device according to claim 34, wherein the printed circuit board is fitted with a second plug connector, a third plug connector, a grounding plate, a connection configured for extra-low voltage lines, and/or a connection for data lines.

36. The device according to claim 35, wherein the second plug connector is configured for low-voltage lines and the third plug connector is configured for extra-low-voltage lines.

37. The device according to claim 34, wherein the cover includes at least two parts and/or consists of two parts, the two parts being clip-connected to one another.

38. The device according to claim 37, wherein a connecting direction of the two parts is parallel to an actuating direction of the first plug connector.

39. The device according to claim 37, wherein the cover, an upper part of a housing of the EMC unit, and a lower part of the housing are made of plastic.

40. The device according to claim 39, wherein the plastic is configured to electrically insulate a printed circuit board.

41. The device according to claim 34, wherein the printed circuit board is fitted with a grounding plate.

42. The device according to claim 41, wherein the grounding plate is screw-connected to a metal housing part of the device.

43. The device according to claim 16, wherein the device is arranged as an electric motor with a connection box, the connection arrangement is arranged in the connection box.

44. The device according to claim 43, wherein the connection box includes a cover in which a converter is arranged in an integrated manner.

45. The device according to claim 16, wherein the device is arranged as a converter, the connection arrangement being arranged within a housing of the converter.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 is a perspective view of an electrical connection arrangement of a device, which electrical connection arrangement has a pluggable EMC unit.

[0029] As illustrated in FIG. 2, in contrast to FIG. 1, an upper part 2 of the pluggable EMC unit is removed.

[0030] FIG. 3 is a perspective view of the EMC unit.

[0031] As illustrated in FIG. 4, in contrast to FIG. 1, a region of a cover is removed to expose a printed circuit board 40 of the connection arrangement.

DETAILED DESCRIPTION

[0032] As illustrated in the Figures, the connection arrangement has an EMC unit that is electrically connected to a connection unit by an electrical plug connector 5. Thus, the EMC unit can be exchanged for an EMC unit of a different size if the plug connector 5 is unchanged.

[0033] The connection arrangement is arranged in a device. The device is, for example, an electrical device, such as a converter, inverter, controller, or electric motor. The connection arrangement is, for example, arranged in the connection box of the electric motor, and a converter can be arranged in an integrated manner in a cover of the connection box or in the electric motor. In this case, or when the connection arrangement is arranged in the converter, the power electronics of the converter are supplied electrically by a plug connector 6 provided for low voltages, and the signal electronics of the converter are contacted by a third plug connector 7 provided for extra-low voltages.

[0034] The connection unit has a printed circuit board 40, which is fitted with a mating plug connector corresponding to the first plug connector 5 and with the second plug connector 6, e.g., for low-voltage lines, as well as with the third plug connector 7, e.g., for extra-low voltage lines, and a grounding plate 8. In addition, a connection 9 for extra-low voltage lines and a connection 10 for data lines are fitted on the printed circuit board 40.

[0035] A plastic cover for electrical insulation encloses the printed circuit board 40 in a housing-forming manner. For example, the cover produces the insulation resistance.

[0036] For example, the cover is made of two parts, and the two parts of the cover are clip-connected to one another. When clipping in the two parts, the connecting direction is parallel to the actuating direction of the first plug connector 5.

[0037] The grounding plate 8 is connected to a housing part of the device using screws. As at least two screws are thus used to connect the grounding plate 8 to the housing part of the device, increased safety can be achieved.

[0038] The EMC unit has a lower part 1, which is clip-connected to an upper part 2 to form a housing for the EMC unit. The components for EMC measures, e.g., components for improving electromagnetic compatibility, are arranged inside this housing.

[0039] For example, these components include a mains choke 4, which is configured to be suitable for a three-phase current. For example, each phase is assigned a winding, and all windings are arranged on a common ferrite core.

[0040] In addition, capacitors 20, e.g., interference suppression capacitors, i.e., Y capacitors, for example, are included as components for EMC measures and arranged within the housing.

[0041] In this manner, the interference suppression measures and/or EMC measures are arranged directly next to the connection unit by the EMC unit, since only one first plug connector 5 needs to be arranged therebetween. This provide that interference suppression is close to the point of use and thus that the measures are highly effective.

[0042] The upper part 2 is made of plastic and is thus electrically insulating. The low-voltage lines of the mains choke 4 are thus arranged in sufficiently effectively insulated manner and with insulation resistance.

[0043] The upper part 2 has through-passing first slots for convective heat dissipation. The upper part 2 follows the contour of the cylindrical mains filter 4 and has radially extending through-passing first slots which, in relation to the cylinder axis, extend radially in the circumferential direction within a flat end face and are evenly spaced from one another in the circumferential direction.

[0044] The direction of the normal of the end face is parallel to the cylinder axis. The end face is, for example, bounded in a circular manner.

[0045] Further through-passing slots are arranged in the upper part 2 and are evenly spaced from each other in the circumferential direction. These further slots extend along the jacket of the cylinder and, coming from the radially outer edge of the end face, protrude into the end face, in which they extend radially and are spaced apart from the first slots.

[0046] The radial distance range covered by the first slots in the radial direction overlaps with the radial distance range covered by the further slots in the radial direction.

[0047] In the region around the mains filter, the upper part 2 is hollow-cylindrical, and the first slots and the further slots are arranged in this region.

[0048] The cylinder axis is aligned perpendicular to the actuating direction of the first plug connector 5. For example, the actuating direction is a horizontal direction and the cylinder axis is the vertical direction.

[0049] The EMC unit is supplied from a mains connection 3, e.g., an AC supply mains connection, and this mains connection 3 has at least three mains phases. For example, three Y capacitors are arranged on the three phases and the windings of the mains choke 4 are connected to the three phases. On the output side, the three phases are routed via the first plug connector 5 to a rectifier of the converter, which provides an intermediate circuit voltage on the DC side to an inverter of the converter. A three-phase motor is connected to the AC side connection of the inverter, which three-phase motor is thus supplied from the converter, e.g., from the inverter of the converter, and can thus be operated with speed control.

[0050] The printed circuit board 40 is fitted with an electronic circuit adapted for evaluating the data transmitted via the connection 10 for data lines.

[0051] According to example embodiments, the converter is not arranged in the electric motor in an integrated manner, but is arranged remotely, i.e., spaced apart from the electric motor.

[0052] According to example embodiments, the electronic circuit has further evaluation units which are adapted for evaluating the signals transmitted via the connection 9 for extra-low voltages.

LIST OF REFERENCE NUMERALS

[0053] 1 Lower part [0054] 2 Upper part [0055] 3 Mains connection, e.g., AC supply mains connection [0056] 4 Mains choke [0057] 5 First plug connector [0058] 6 Second plug connector, e.g., for low-voltage lines [0059] 7 Third plug connector, e.g., for extra-low voltage lines [0060] 8 Grounding plate [0061] 9 Connection for extra-low voltage lines [0062] 10 Connection for data lines [0063] 20 Capacitors, e.g., interference suppression capacitor, Y capacitor