MEDIA-TIGHT HOUSING

Abstract

The present disclosure relates to an assembly comprising a housing and at least one busbar for connecting a printed circuit board disposed in the housing to a power supply present outside the housing, wherein the housing has a penetration, from which the busbar projects, wherein a magnetic core and a gasket accommodating the magnetic core are placed in the housing penetration in a media-tight manner, and the gasket, together with the magnetic core, encompasses the busbar in a form-fitting manner.

Claims

1. An assembly comprising: a housing and a busbar configured for connecting a printed circuit board disposed in the housing to a power supply present located outside the housing, wherein the housing has an opening, through which the busbar projects, wherein a magnetic core and a gasket that accommodates the magnetic core are placed in the opening, and the gasket, together with the magnetic core, encompasses the busbar.

2. The assembly according to claim 1, wherein the busbar has a plastic insulation.

3. The assembly according to claim 2, wherein the plastic insulation is present in a busbar section in the region of the opening and in a section outside the housing.

4. The assembly according to claim 2, wherein the plastic insulation is present in a busbar section in the region of the opening or in a section outside the housing.

5. The assembly according to claim 1, wherein the magnetic core and the gasket are placed in the opening in a media-tight manner.

6. The assembly according to claim 1, wherein the gasket and magnetic core encompass the busbar in a form-fitting manner.

7. The assembly according to claim 1, wherein the busbar comprises a contact on an end located inside the housing.

8. The assembly according to claim 1, wherein the busbar comprises a contact on an end located outside the housing.

9. The assembly according to claim 2, wherein the plastic insulation comprises thermoplastic or thermoset.

10. The assembly according to claim 1, wherein the busbar is a first busbar and the assembly further comprises a second busbar that projects through the opening, wherein the first and second busbars are each encompassed by separate magnetic cores.

11. The assembly according to claim 1, wherein the busbar is a first busbar and the assembly further comprises a second busbar that projects through the opening, wherein the first and second busbars are both encompassed by one magnetic core.

12. The assembly according to claim 1, wherein the gasket has a substantially annular shape.

13. The assembly according to claim 1, wherein the magnetic core resides in a recess located in the inner radius of the gasket.

14. The assembly according to claim 1, wherein the magnetic core has a substantially annular shape.

15. The assembly according to claim 14, wherein the magnetic core has a C or U shape.

16. The assembly according to claim 1, wherein the magnetic core is comprised of multiple pieces.

17. The assembly according to claim 1, wherein the gasket comprises a first sealing lip on an outer radius, wherein the first sealing lip prevents moisture from entering between the gasket and the housing.

18. The assembly according to claim 1, wherein the gasket comprises a second sealing lip on an inner radius, wherein the second sealing lip is configured to prevent moisture from entering between the gasket and the busbar.

19. The assembly according to claim 2, wherein the plastic insulation comprises a collar that is configured to limit movement of the busbar into the opening.

20. The assembly according to claim 19, wherein the collar is configured to prevent moisture from entering between the gasket and the housing.

Description

[0013] The disclosure shall be explained below in greater detail, based on a FIGURE.

[0014] The FIGURE shows schematically a section of an assembly according to the disclosure, in a cross section. The assembly 1 has a housing 2, which has an opening 3. A busbar 4 is inserted through the opening 3. The busbar 4 connects an external power supply (not shown) to a printed circuit board (not shown), wherein the printed circuit board is positioned in the interior of the housing 2.

[0015] A gasket 5 can be seen in the opening 3 of the housing 2. The gasket 5 has a substantially annular design, and has a radial recess 9 in the region of its inner radius 7, in which the magnetic core 10 can be placed. The magnetic core 10 is designed as a single- or multi-piece annular core. As a matter of course, the magnetic core 10 can also be designed as a C or U core.

[0016] It is, however, also conceivable that the magnetic core 10 is integrated in the gasket 5, i.e. the gasket 5 encompasses the magnetic core 10 in its entirety. The gasket 5 has a circumferential sealing lip 8 in the region of its outer radius 6 and/or in the region of its inner radius 7. These sealing lips 8 serve, on one hand, to ensure that no moisture can get between the housing 2 and the gasket 5, or between the gasket 5 and the busbar 4 in the housing. On the other hand, these sealing lips 8 serve to secure the gasket permanently in the opening 3 of the housing 2, and to prevent the gasket 5 from falling out of the opening 3, e.g. due to vibrations.

[0017] The busbar 2 is sprayed with a plastic insulation 11. The plastic insulation 11 is provided thereby in a section 13 of the busbar 4 in the region of the housing opening 3 and in a section 14 of the busbar 4 outside the housing 2. For practical purposes, the plastic insulation 11 has a collar 12. This collar 12 bears on the housing 2, and serves, on one hand, as a stop for the busbar 4 during installation of the busbar 4, and on the other hand, as a supplementary seal. Moisture is prevented from getting into a region between the gasket 5 and the housing 2 by the collar 12 formed by the plastic insulation 11.

REFERENCE SIGNS

[0018] 1 Assembly [0019] 2 Housing [0020] 3 Opening [0021] 4 Busbar [0022] 5 Gasket [0023] 6 Outer radius [0024] 7 Inner radius [0025] 8 Sealing ring [0026] 9 Recess [0027] 10 Magnetic core [0028] 11 Insulation [0029] 12 Collar [0030] 13 Section of the busbar [0031] 14 Section of the busbar