Housing of an electrical component

Abstract

The present invention relates to a housing of an electrical component, in particular an inverter, comprising: a housing body (3) with a housing base and housing walls (31, 32), and a housing cover (4) that closes the housing body (3), wherein the housing cover (4) and / or the housing base and / or a housing wall has a shape that curves outwards from the interior of the housing.

Description

State of the art

[0001] The present invention relates to a housing for an electrical component, in particular an inverter, with improved robustness.

[0002] To protect against external environmental influences, electrical components are often housed in enclosures. These enclosures primarily protect against the ingress of liquids or similar substances and also against impacts or other damage. Enclosures often have a box-like shape. If an impact is exerted on the enclosure from the outside, or if, for example, a heavy component falls onto it, there is a risk that the enclosure will deform inwards. This poses a risk of damaging the component located inside the enclosure. Disclosure of the invention

[0003] In contrast, the housing of an electrical component according to the invention, with the features of claim 1, has the advantage that it is significantly more robust against external shocks or impacts from an object than housings known in the prior art. This allows for improved protection of a component inside the housing, in particular an electrical component such as an inverter. Such shocks can occur during manufacturing and / or assembly, or in various situations during operation, for example, from stone chips when the housing is used in a vehicle.

[0004] According to the invention, this is achieved by the housing comprising a housing body with a housing base and housing walls, and a housing cover. The housing cover closes the housing body and is positioned opposite the housing base. An electrical component, such as an inverter, can then be arranged inside the housing. The housing cover thus closes the housing body, wherein the housing cover and / or the housing base and / or the housing walls have an outwardly curved shape. This means that forces can be absorbed more effectively due to the curved shape of at least one housing surface. In particular, this results in a reduced deformation of approximately 41% to 47% compared to a flat housing surface. Thus, the invention provides a more stable housing that can absorb forces more effectively.The curved surface deflects the forces, especially towards the edge of the housing, before the housing surfaces deform.

[0005] The dependent claims describe preferred embodiments of the invention.

[0006] Preferably, the outwardly curved shape of the housing cover and / or the housing base and / or the housing walls is dome-like. Preferably, one apex (highest point) of the dome lies on a central axis of the housing. The dome-like shape allows forces to be introduced into all four edge regions of the housing.

[0007] Preferably, the housing cover and / or the housing base and / or the housing walls have embossed areas. These embossed areas are preferably outwardly embossed flat areas, for example, angular areas. This provides additional stiffening to the outwardly curved shape.

[0008] Preferably, the embossing areas are arranged along an edge region of the housing.

[0009] According to a further preferred embodiment of the invention, an inner surface of the housing cover and / or the housing base and / or the housing walls has ribs. The ribs are preferably arranged in a linear fashion. Preferably, the ribs intersect. Preferably, the ribs all have the same height, starting from a base surface.

[0010] Particularly preferably, the ribs are interrupted and / or have a changing cross-section, whereby preferably no interruption is formed where the cross-section changes along the rib. That is, the rib is continuous from one end to the other, but with varying heights.

[0011] Preferably, the housing cover has a circumferential rim that lies in a plane E. The rim is not curved; rather, all rim areas lie in the common plane E. Preferably, fixing lugs are provided radially outward at the rim for fixing the housing cover to the housing body. The housing body preferably has corresponding receiving areas that can be arranged under the fixing lugs, so that the housing cover can be fixed to the housing body, for example, by means of screws.

[0012] Preferably, the outwardly curved shape is designed such that the highest point of the curved shape is as far away as possible from all edge areas.

[0013] Alternatively, and preferably, the outwardly curved shape is arched. In this case, the housing cover is designed such that it connects two opposing edge regions in an arched manner. The other two opposing edge regions accordingly have substantially vertical wall sections that close off the arched curve.

[0014] Furthermore, the present invention relates to an electrical component, in particular an inverter with a housing according to the invention. drawing

[0015] A preferred embodiment of the invention is described in detail below with reference to the accompanying drawings. The drawing shows: Fig. 1 a schematic, perspective view of a housing according to a first embodiment of the invention, Fig. 2 a schematic top view of an outer surface of a housing cover of the housing of Fig. 1, Fig. 3 a schematic top view of an inside of the housing cover of Fig. 2, Fig. 4 a side view of the case cover of Fig. 2 and Fig. 3, and Fig. 5 an enlarged view of the inside of the case cover of Fig. 3. Preferred embodiment of the invention

[0016] The following refers to the Fig. 1, Fig. 2, Fig. 3, Fig. 4 to Fig. 5 a housing 1 according to a preferred embodiment of the invention is described in detail.

[0017] As from Fig. As can be seen in 1, the housing 1 comprises a housing cover 4 and a housing body 3, of which in Fig. 1 only two housing walls 31, 32 are visible.

[0018] Inside the housing 1 are various electrical components, for example a circuit board 2 etc.

[0019] The housing cover 4 is made in detail from the Fig. 2, Fig. 3, Fig. 4 to Fig. 5 is evident. The housing cover 4 closes the housing body 3, as shown in Fig. Figure 1 shows that 4 fixing lugs 6 are arranged along the edge of the housing cover. These can be fixed in corresponding recesses in the housing walls of the housing body 3, for example by means of fixing elements 9, e.g. screws.

[0020] The housing cover 4 has four edge regions, namely a first edge region 41, a second edge region 42, a third edge region 43, and a fourth edge region 44. The first edge region 41 is opposite the second edge region 42, and the third edge region 43 is opposite the fourth edge region 44. The housing cover 4 thus has an essentially square, in particular rectangular, shape.

[0021] As from the Fig. 1 and Fig. As can be seen in Figure 4, the housing cover 4 has an outwardly convex shape. In this embodiment, the outwardly convex shape is dome-like, with a dome apex 5, i.e., a highest point of the dome-like housing cover 4, located in the center of the housing cover 4. This means that the lateral distance between the dome apex 5 and the first and second edge regions 41, 42 is equal, and the lateral distance between the dome apex 5 and the third and fourth edge regions 43, 44 is also equal.

[0022] Furthermore, the housing cover 4 provides a large number of embossing areas 7. As can be seen in particular from Fig. 2 and Fig. As can be seen in Figure 3, the embossing areas 7 are arranged in a row along the first edge area 41. The embossing areas are embossed protruding outwards. The geometric shape of the embossing areas is a rectangle with rounded corners.

[0023] Furthermore, a large number of ribs 8 are formed on an inner side 2b (cf. Fig. 3) As from Fig. As can be seen in Figure 3, the ribs 8 are arranged in a straight line, with several ribs 8 positioned parallel to each other. Ribs 8 also intersect at an angle of 90°. This results in a rectangular rib pattern (see Figure 3). Fig. 3).

[0024] The embossed areas 7 and the ribs 8 form stiffeners, further increasing the robustness of the housing cover 4. In particular, the combination of the outwardly convex shape of the housing cover 4 with the embossed areas 7 and ribs 8 results in a very stable and robust housing cover. The convex housing cover 4 exhibits a deformation resistance that, compared to a housing cover lying in a plane, results in an improvement of 41% to 47% in deformation resistance.

[0025] As from Fig. As can be seen in Figure 5, some ribs 8 also cross the embossed areas 7. In this case, the ribs 8 in the embossed areas 7 on the inside 4b of the case cover 4 protrude less or do not protrude at all beyond the base surface of the case cover.

[0026] Fig. Figure 4 schematically shows another section along line AA of Fig. Figure 3, which schematically shows the curvature of the housing cover 4. The first edge region 41 and the second edge region 42 are arranged in a common plane E. Starting from the edge regions 41, 42, the housing cover 4 curves outwards, with the housing cover 4 exhibiting a curvature in an arc B with a very large radius between the first edge region 41 and the second edge region 42. The arc B intersects the plane E twice at the transition between the edge regions 41, 42 and the inner area of ​​the housing cover.

[0027] It should be noted that the section along a line through the third and fourth boundary areas 43, 44 is similar to that in Fig. 4 looks like this, because the curvature of the case cover is dome-like.

[0028] A distance A from the dome apex 5 to the plane E is approximately twice as large as a thickness D of the case cover 4.

[0029] The curved shape of the housing cover 4 now provides increased robustness to the housing 1. If an external force (arrow F in Fig.4), for example, if an impact or similar event acts on the housing cover 4, the force can be diverted laterally into the edge regions 41, 42, 43, 44 due to the outwardly curved shape, without causing geometric deformation of the housing cover 4. This allows the entire housing 1 to be designed more robustly. It should be noted that all housing walls and a housing base can also be designed with an outwardly curved shape. Such a housing would be better protected on all sides.

[0030] It should also be noted that, for example, the housing cover 2 can also have such an outwardly curved shape that the housing cover 4 forms an arc. The arc runs, for example, between the first and second edge regions. At the third and fourth edge regions, wall areas oriented vertically to the arc would then be formed in order to close the cover laterally along the arc.

Claims

[1] Housing of an electrical component, in particular an inverter, comprising: - a housing body (3) with a housing base and housing walls (31, 32), and - a housing cover (4) that closes the housing body (3), - wherein the housing cover (4) and / or the housing base and / or a housing wall has a shape that curves outwards from the interior of the housing. [2] Housing according to claim 1, wherein the outwardly curved shape is dome-like with a dome tip (5). [3] Housing according to one of the preceding claims, wherein the housing cover (4) and / or the housing body has embossed areas (7). [4] Housing according to claim 3, wherein the embossing areas (7) extend along an edge area (41, 42, 43, 44) of the housing cover. [5] Housing according to one of the preceding claims, wherein an inside of the housing cover and / or the housing body (3) has ribs (8), wherein the ribs (8) extend in particular in a line-like manner on the inside (4b) of the housing cover (4) and / or housing body and in particular also intersect. [6] Housing according to claim 5, wherein the ribs (8) intersect the embossed areas (7) and in particular the ribs have a changing cross-section. [7] Housing according to one of the preceding claims, wherein the housing cover (4) has a circumferential rim with a first rim region (41), a second rim region (42), a third rim region (43) and a fourth rim region (44), wherein the rim regions lie in a common plane E. [8] Housing according to claim 7, wherein the dome tip (5) has a distance to the plane E which is greater than or equal to twice the thickness of the housing cover (4). [9] Housing according to one of the preceding claims, wherein all edge areas of the housing cover (4) have fixing lugs (6) which lie in a common plane. [10] Housing according to one of the preceding claims, wherein the housing cover (4) and / or the housing body are curved in an arc-like manner.

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