Housing assembly for an electrical component

Abstract

The invention relates to a housing assembly (1) for electrical components, comprising: a housing (2) having a housing wall (3) which extends at least partially around a central axis (M) and defines an interior space (4) in which the electrical components can be placed; the invention relates to a cable connector (1) comprising a housing (2), and at least one cable seal (5) which can be mounted in a mounting direction (T) to the housing (2), the at least one cable seal (5) being mounted to the housing (2) by means of a snap-in connection (6), the snap-in connection (6) comprising at least one groove (7) having a groove-side stop surface (8) and at least one bump (9) having a bump-side stop surface (10), and the at least one cable seal (5) being mounted in the mounting direction (T) to the housing (2). The at least one projection (9) engages in the at least one recess (7) in the mounted position, and wherein the recess-side stop surface (8) is in contact with the projection-side stop surface (10).

Description

Technical Field

[0001] The invention relates to a housing assembly for an electrical component according to claim 1 and to an assembly according to claim 15 . Background Art

[0002] Cable glands are known from the prior art, which are screwed onto a housing in which electrical components are arranged. Summary of the invention

[0003] It is an object of the present invention to provide a housing assembly for an electrical component having an alternative arrangement for mounting a cable gland to the housing.

[0004] This object is achieved by claim 1. Therefore, a housing assembly for an electrical component comprises: a housing having a housing wall, which extends at least partially around a central axis and defines an interior space, in which the electrical component can be placed; and at least one cable gland, which can be mounted to the housing in a mounting direction. The at least one cable gland is mounted to the housing by a snap-in connection. The snap-in connection comprises at least one groove with a groove-side stop surface and at least one projection with a projection-side stop surface. In the mounted position, the at least one projection engages in the at least one groove, and wherein the groove-side stop surface is in contact with the projection-side stop surface.

[0005] By means of a snap-in connection, an alternative mounting arrangement is provided. The mounting arrangement also has the advantage that the cable gland can be mounted in a longitudinal direction, which makes the mounting process easier.

[0006] The housing as well as the cable gland are preferably provided by an electrically insulating material.

[0007] The contact between the stop surfaces is arranged to prevent the cable gland 5 from moving against the installation direction.

[0008] Preferably, the at least one groove extends circumferentially around the central axis over the entire circumference. This has the advantage that no angular alignment between the cable gland and the housing is required.

[0009] Preferably, the angled ramp section is arranged in front of the groove when viewed in the installation direction, wherein the angled ramp section is arranged such that a diameter of the angled ramp section increases as the distance from the groove decreases.

[0010] Preferably, the angled ramp section is inclined at an angle of 10° to 45°, in particular at an angle of 15° to 35°, to the central axis.

[0011] In a preferred embodiment, exactly one groove is arranged.

[0012] Preferably, at least two or at least three or exactly three of the projections are arranged, which are distributed at regular distances around the circumference around the central axis.

[0013] Preferably, the at least one projection comprises an angularly inclined ramp section arranged such that the diameter increases with increasing distance from the projection-side stop surface.

[0014] Preferably, the angled ramp section is inclined at an angle of 20° to 40°, in particular 25° to 35°, to the central axis.

[0015] In a first variant, the angled ramp sections have the same angle relative to the central axis. In another variant, the angled ramp sections at the grooves have a larger or smaller angle relative to the central axis than the angled ramp sections at the protrusions.

[0016] Preferably, the groove side stop surface is in flat contact with the protrusion side stop surface. Preferably, the overlap of the groove side stop surface and the protrusion side stop surface in an annular shape is at least 0.75 mm, in particular, at least 1 mm. These dimensions are particularly advantageous when the diameter of the groove reaches 30 mm.

[0017] Preferably, the groove side stop surface and the bump side stop surface extend at an angle of 90° to the central axis.

[0018] Preferably, a cylindrical guide surface is provided in front of the at least one groove when viewed in the installation direction, wherein during the installation process, the at least one projection slides along the cylindrical guide surface.

[0019] Preferably, the at least one groove is arranged on the housing, and wherein the at least one protrusion is arranged on the cable gland; or, wherein the at least one protrusion is arranged on the housing, and wherein the at least one groove is arranged on the cable gland.

[0020] Preferably, the cable gland and / or the housing comprises reinforcing ribs which increase the stability of the cable gland.

[0021] Preferably, the cable gland and / or the housing are made of fiber-reinforced plastic.

[0022] A component comprises the housing component as described above, at least one electrical component, at least one cable and at least one sealing element, wherein the at least one electrical component is arranged in the internal space, the at least one cable is in electrical contact with the at least one electrical component, and the at least one sealing element is retained in the internal space by the cable gland.

[0023] Preferably, the at least one electrical component is a fuse. In this case, two cables are arranged, each of which is in electrical contact with the fuse, one of which is led out of the interior space at one end and the other of which is led out of the interior space at the other end. Cable glands are provided at both ends. This embodiment has particular advantages because the fuse is in line with the cables.

[0024] Further embodiments of the invention are listed in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, which are used to illustrate the current preferred embodiments of the present invention and are not used to limit the present invention. In the accompanying drawings,

[0026] Figure 1 shows a perspective exploded view of an assembly including a housing assembly according to a preferred embodiment of the present invention;

[0027] Figure 2 Shown according to Figure 1 a cross-sectional view of a housing assembly;

[0028] Figure 3 Shown according to Figure 1 a cross-sectional view of a housing assembly;

[0029] Figure 4 Shown according to Figure 1 A three-dimensional view of a cable gland of a housing assembly;

[0030] Figure 5 Shows Figure 5 a cross-sectional view of a cable gland; and

[0031] Figure 6 Shows Figure 4 and Figure 5 Front view of the cable gland. DETAILED DESCRIPTION

[0032] Figure 1 An exploded view of an assembly is shown, which includes a housing assembly 1 and several other parts, as described below.

[0033] The housing assembly 1 comprises a housing 2 and at least one cable gland 5. The at least one cable gland 5 is thereby mounted to the housing 2 along a mounting direction T. The mounting direction is thus co-linear with the central axis M mentioned below.

[0034] The housing 2 is provided with a housing wall 3 extending at least partially around a central axis M. The housing wall 3 defines an interior space 4. In the interior space 4, at least one electrical component 15 can be placed. The electrical component 15 can be, for example, a fuse or an electrical contact element having a plug section or a socket section.

[0035] Figure 2 shows an exploded view of the housing assembly 1 before the installation process, Figure 3 The housing assembly 1 is shown after the installation process. The cable gland 5 can be mounted to the housing 2 by means of a snap-in connection 6. The snap-in connection 6 comprises at least one groove 7 with a groove-side stop surface 8 and at least one projection 9 with a projection-side stop surface 10. In the illustrated embodiment, the at least one groove 7 is located on the housing 2 and the at least one projection 9 is located on the cable gland 5. In the installed position, the at least one projection 9 engages in the at least one groove 7. Thus, the groove-side stop surface 8 is in contact with the projection-side stop surface 10. The contact between the groove-side stop surface 8 and the projection-side stop surface 10 is arranged to prevent the cable gland 5 from moving against the installation direction.

[0036] The contact between the groove side stop surface 8 and the lug side stop surface 10 is a flat contact, which means that these surfaces contact each other in a preferably completely flat engagement. The groove side stop surface 8 and the lug side stop surface 10 are oriented at an angle of 90° to the central axis.

[0037] In other embodiments, at least one groove 7 may be arranged on the cable gland 5 , and at least one protrusion 9 may be arranged on the housing 2 .

[0038] In the present embodiment, the groove 7 extends circumferentially around the central axis M over the entire circumference. In the present case, around the housing 2. The groove thus extends into the outer surface of the housing 2.

[0039] An angled ramp section 11 is arranged in front of the groove 7, viewed in the installation direction. The angled ramp section 10 is arranged such that the diameter of the angled ramp section 11 increases with decreasing distance from the groove 7. In other words: the angled ramp section 11 is arranged as a conical pile. The angled ramp section 11 enhances the installation process, because the projection will be guided on the angled ramp section 11 before engaging with the groove 7.

[0040] Figures 4 to 6Various views of the cable gland 5 are shown. In the present embodiment, the cable gland 5 comprises exactly three projections 9. The projections 9 are distributed at regular distances around the circumference around the central axis M. For three projections, this means that the angle between two adjacent projections 5 is 120°. In the present case, the projections 9 are located on the inner surface of the cable gland 5.

[0041] The at least one projection 9 comprises an angled ramp section 12, which is arranged so that the diameter increases with increasing distance from the projection side stop surface. The angled ramp section 12 will contact the angled ramp section 10 of the groove 7. The two angled ramp sections 10 and 12 are in contact with each other, and the angled ramp section 12 of the cable gland 5 slides on the angled ramp section 10 of the housing 2.

[0042] Furthermore, in this embodiment, the housing comprises a cylindrical guide surface 13. The cylindrical guide surface 13 is arranged in front of the at least one groove 7 as viewed from the mounting direction T. During mounting, the at least one projection 9 slides along the cylindrical guide surface 13.

[0043] Preferably, the cable gland 5 and / or the housing 2 comprises reinforcing ribs 14 which increase the stability of the cable gland 5 .

[0044] like Figure 1 and Figure 3 The assembly shown comprises a housing assembly as described above. Furthermore, the assembly comprises at least one electrical component 15 arranged in said inner space 4, at least one cable 16 being in electrical contact with said at least one electrical component, and at least one sealing element 17, which is retained in said inner space by said cable gland 5. Preferably, the sealing surface of the housing is provided by the inner surface of the inner space 4. Preferably, the inner space 4 is provided with a tapered surface before the actual sealing surface, so that the insertion of the sealing element is enhanced. The diameter of the tapered surface decreases as the distance to the sealing surface becomes closer.

[0045] Preferably, the at least one electrical component is a fuse. In this case, two cables are arranged, each of which is in electrical contact with the fuse, one of which is led out of the interior space at one end and the other of which is led out of the interior space at the other end. Cable glands 16 are provided at both ends.

[0046] Reference numerals list

[0047] 1 Shell assembly

[0048] 2 Housing

[0049] 3 Shell wall

[0050] 4. Internal Space

[0051] 5 Cable gland

[0052] 6 Snap-in connection

[0053] 7 Grooves

[0054] 8 Groove side stop surface

[0055] 9 Bump

[0056] 10 Stop surface on the bump side

[0057] 11 Angle inclined slope section

[0058] 12 Angle inclined ramp section

[0059] 13 Cylindrical guide surface

[0060] 14 Reinforcement ribs

[0061] 15 Electrical components

[0062] 16 Cable

[0063] 17 Sealing element

[0064] M Central axis

[0065] T Installation direction

Claims

1. A housing assembly (1) for an electrical component, the housing assembly comprising: a housing (2) having a housing wall (3) which extends at least partially around a central axis (M) and defines an interior space (4) in which the electrical components can be placed; as well as at least one cable gland (5) which can be mounted to the housing (2) along a mounting direction (T); wherein the at least one cable gland (5) is mounted to the housing (2) via a snap-in connection (6), The snap-in connection portion (6) comprises at least one groove (7) having a groove-side stop surface (8) and at least one projection (9) having a projection-side stop surface (10), wherein, in the mounted position, the at least one projection (9) engages in the at least one groove (7), and wherein the groove-side stop surface (8) is in contact with the projection-side stop surface (10).

2. The housing assembly (1) according to claim 1, wherein: The at least one groove (7) extends circumferentially around the central axis (M) over the entire circumference.

3. The housing assembly (1) according to claim 1 or 2, wherein: Viewed from the installation direction (T), the angled ramp section (11) is arranged in front of the groove (7), wherein the angled ramp section (10) is configured so that the diameter of the angled ramp section (11) increases as the distance from the groove (7) decreases.

4. The housing assembly (1) according to claim 3, wherein: The angled ramp section (11) is inclined at an angle of 10° to 45°, in particular 15° to 35°, to the center axis (M).

5. The housing assembly (1) according to any one of the preceding claims, wherein: Exactly one groove (7) is arranged.

6. The housing assembly (1) according to any one of the preceding claims, wherein: At least two or at least three or exactly three of the projections (9) are arranged, and the at least two or at least three or exactly three projections (9) are distributed at regular distances around the circumference of the central axis (M).

7. The housing assembly (1) according to any one of the preceding claims, wherein: The at least one lug (9) comprises an angularly inclined ramp section (12) which is arranged such that the diameter increases with increasing distance from the lug-side stop surface (10).

8. The housing assembly (1) according to claim 7, wherein: The angled ramp section (12) is inclined at an angle of 20° to 40°, in particular 25° to 35°, to the center axis (M).

9. The housing assembly (1) according to any one of the preceding claims 3 to 8, wherein: The angled ramp sections (11, 12) have the same angle relative to the central axis (M); or the angled ramp section (11) located at the groove (7) has a larger or smaller angle relative to the central axis (M) than the angled ramp section (12) located at the protrusion (9).

10. The housing assembly (1) according to any one of the preceding claims, wherein: The groove side stop surface (8) is in flat contact with the bump side stop surface (10).

11. The housing assembly (1) according to any one of the preceding claims, wherein: The groove side stop surface (8) and the projection side stop surface (10) extend at an angle of 90° to the center axis (M).

12. The housing assembly (1) according to any one of the preceding claims, wherein: Viewed from the installation direction (T), a cylindrical guide surface (13) is provided in front of the at least one groove (7), wherein during the installation process, the at least one projection (9) slides along the cylindrical guide surface (13).

13. The housing assembly (1) according to any one of the preceding claims, wherein: The at least one groove (7) is arranged on the housing (2), and wherein the at least one protrusion (9) is arranged on the cable gland (5); or wherein the at least one protrusion (9) is arranged on the housing (2), and wherein the at least one groove (7) is arranged on the cable gland (5).

14. The housing assembly (1) according to any one of the preceding claims, wherein: The cable gland (5) and / or the housing (2) comprises reinforcing ribs (14), which enhance the stability of the cable gland (5).

15. An assembly comprising a housing assembly according to any one of the preceding claims, at least one electrical component (15), at least one cable (16) and at least one sealing element (17), wherein the at least one electrical component is arranged in the internal space (4), the at least one cable is in electrical contact with the at least one electrical component (15), and the at least one sealing element is retained in the internal space (4) by the cable gland (5).

16. The assembly of claim 15, wherein: The at least one electrical component (15) is a fuse, and wherein two cables are arranged, wherein each cable is in electrical contact with the fuse, wherein one of the cables is led out of the inner space at one end and the other cable is led out of the inner space at the other end, wherein both ends are provided with cable glands (16).

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