Housing with a seal

Abstract

Housing (1) with a seal (2), comprising a first housing part (5) and a second housing part (6) enclosing an interior (3) of the housing (1), wherein the first housing part (5) has a first surface (7) and the second housing part (6) has a second surface (8), which in the closed state are opposite each other and form a gap (9) between them, characterized in that the first surface (7) forms a first sub-surface (10) and a second sub-surface (11) and the second surface (8) forms a third and a fourth sub-surface (12, 13), wherein the first sub-surface (10) forms a first groove (14) and the second sub-surface (11) forms a second groove (15), wherein the third sub-surface (12) forms a first projection (16) compatible with the first groove (14) and the fourth sub-surface (13) forms a second projection (17) compatible with the second groove (15). trains,so that the first projection (16) engages in the first groove (14) when the housing (1) is closed, and the second projection (17) engages in the second groove (15) when the housing (1) is closed, with a seal (18) being arranged in the gap (9) between the first housing part (5) and the second housing part (6).

Description

[0001] The invention relates to a housing with a seal.

[0002] Liquid-tight sealed housings are well-known in the prior art because it is a typical requirement to house a moisture-sensitive component in a liquid-tight sealed enclosure. The housing is designed in two parts: a first housing part and a second housing part. When their facing surfaces meet, these parts form a gap that must be sealed.

[0003] It is known that a seal is inserted into the gap, resting against the two opposing surfaces. However, this design has disadvantages with regard to sealing and durability. If, for example, the seal lifts away from one of the surfaces at only one point, the seal is no longer guaranteed.

[0004] It is also known that a groove is incorporated into one of the two opposing, facing surfaces, and a complementary projection is provided on the other opposing surface, with a seal arranged between the opposing surfaces. The projection forms a continuous circumferential ridge. However, such a design has also proven disadvantageous with regard to sealing and durability. In certain situations, particularly with steam, it is possible for the steam to overcome the projection and penetrate into the interior of the housing. Furthermore, a continuous circumferential ridge can prevent water from draining out of the interior of the housing.

[0005] Document DE 21 2015 000 078 U1 discloses a seal with grooves and compatible projections on the sealing surfaces of housing parts.

[0006] The object of the present invention is to create a housing with a seal which is improved in terms of sealing compared to the prior art and yet is easy to manufacture.

[0007] The problem is solved using the features of claim 1.

[0008] One embodiment of the invention relates to a housing with a seal, which has a first housing part and a second housing part enclosing an interior of the housing, wherein the first housing part has a first surface and the second housing part has a second surface which, in the closed state, face each other and form a gap between them, wherein the first surface forms a first sub-surface and a second sub-surface and the second surface forms a third and a fourth sub-surface, wherein the first sub-surface forms a first groove and the second sub-surface forms a second groove, wherein the third sub-surface forms a first projection compatible with the first groove and the fourth sub-surface forms a second projection compatible with the second groove.so that, when the housing is closed, the first projection engages in the first groove and the second projection engages in the second groove, with a seal being arranged in the gap between the first and second housing parts. This ensures improved and permanent sealing of the housing, particularly against water and steam.

[0009] It is particularly advantageous if the first surface is offset by one step relative to the second surface, and if the third surface is offset by one step relative to the fourth surface, each in a direction perpendicular to the surfaces. This achieves a particularly good sealing effect, as the step, especially when moving from the outside to the interior of the housing, must be overcome, resulting in a further improved seal.

[0010] In one embodiment, it is also advantageous if the step has a height H and the first projection a height h1 and the second projection a height h2, where H is greater than h1 and H is greater than h2, in particular H is several times greater than h1 and h2, or at least three times greater than h1 and h2. This also achieves an improved sealing effect.

[0011] It is particularly advantageous if the third surface adjacent to the interior of the housing is positioned higher than the fourth surface adjacent to the exterior. This would cause the water to rise inwards to penetrate the housing. Since this would have to occur against gravity, the sealing effect is improved.

[0012] It is also advantageous if the first projection and / or the second projection is designed as a circumferential or nearly circumferential projection, with the first groove and / or the second groove also being designed as a circumferential or nearly circumferential groove. This enables a sealing variant that is easy to manufacture and easy to assemble.

[0013] It is also advantageous if the first projection and / or the second projection are subdivided into partial projections that are arranged in a row to form an essentially circumferential or nearly circumferential projection, and if the first groove and / or the second groove are subdivided into partial grooves that are arranged in a row to form an essentially circumferential or nearly circumferential groove. This makes another sealing variant possible.

[0014] It is also advantageous if the first projection and / or the second projection, or the partial projections of the first projection and / or the second projection, are straight or curved, wherein the first groove and / or the second groove, or the partial grooves of the first groove and / or the second groove, are straight or curved. This curved variant is advantageous with regard to drainage.

[0015] It is also advantageous if the partial projections of the first projection and the partial projections of the second projection are arranged offset from each other, with the partial grooves of the first groove and the partial grooves of the second groove also being arranged offset from each other. This also improves the sealing effect.

[0016] It is further advantageous if the partial projections of the first projection are arranged in multiple rows and / or the partial projections of the second projection are arranged in multiple rows, with the partial projections of individual rows being offset from one another, with the partial grooves of the first groove being arranged in multiple rows and / or the partial grooves of the second groove being arranged in multiple rows, with the partial grooves of individual rows being offset from one another. This can also improve the sealing effect.

[0017] In another embodiment, it is also advantageous if the seal is made of or has an elastic material, in particular polyurethane or butyl.

[0018] The invention will now be explained in detail using an exemplary embodiment and with reference to the drawing. The drawing shows: Fig. 1 A schematic partial representation of a housing with a first housing part and a second housing part that are placed on top of each other to seal the interior, Fig. 2 a schematic representation of a surface of a housing part with projections, and Fig. 3 a schematic representation of an alternative surface of a housing part with projections.

[0019] The Fig. Figure 1 shows a housing 1 that has a seal 2 to seal the interior 3 of the housing 1 against the exterior 4. Only a section of the housing 1 is shown to illustrate the seal 2. It is not necessary to see the entire housing 1 for this purpose. However, one can imagine that the housing 1 is essentially cuboid in shape with a cuboid interior 3. Alternatively, the housing 1 could also have a different shape.

[0020] In the illustrated embodiment, the housing 1 comprises a first housing part 5 and a second housing part 6. These housing parts 5 and 6 are placed one on top of the other and enclose the interior space 3. The housing therefore consists of two housing parts 5 and 6. However, the invention is not limited to housings 1 with two housing parts 5 and 6; the housing 1 can also consist of more than two housing parts that are assembled together. Thus, the housing 1 can also consist of three or more housing parts, each of which can be sealed and assembled together.

[0021] The Fig. Figure 1 shows that the first housing part 5 has a first surface 7 and the second housing part 6 has a second surface 8, which are opposite each other when closed and form a gap 9 between them.

[0022] It can also be seen that the first area 7 forms a first sub-area 10 and a second sub-area 11, while the second area 8 also forms a third sub-area 12 and a fourth sub-area 13.

[0023] The first partial surface 10 forms a first groove 14 and the second partial surface 11 forms a second groove 15.

[0024] The third sub-surface 12 forms a first projection 16 compatible with the first groove 14 and the fourth sub-surface 13 forms a second projection 17 compatible with the second groove 15.

[0025] When the housing 1 is closed, with the first housing part 5 placed on the second housing part 6, the first projection 16 engages in the first groove 14 and the second projection 17 engages in the second groove 15. A seal 18 is further arranged in the remaining gap 9 between the first housing part 5 and the second housing part 6. The seal 18 preferably consists of or comprises an elastic material, in particular polyurethane or butyl as the elastic material.

[0026] The housing 1 with its housing parts 5, 6 can be made of at least one plastic and / or metal, in particular polyamide, polypropylene, aluminum, etc.

[0027] In Fig. Figure 1 also shows that the first sub-surface 10 is offset from the second sub-surface 11 by a step 19, and that the third sub-surface 12 is offset from the fourth sub-surface 13 by a step 20, each in a direction perpendicular to the sub-surfaces 10, 11, 12, 13. The direction of the step is oriented normal to the sub-surface. In principle, the angle α could also be other than 90° to achieve a better fit of the housing parts 5, 6. An angle of approximately 90° between the steps 19, 20 and the sub-surfaces 10, 11, 12, 13 is advantageous, particularly between 80° and 90°.

[0028] It can also be seen that the level 19, 20 has a height H and the first projection 16 has a height h1 and the second projection 17 has a height h2, where H is greater than h1 and H is greater than h2, in particular H is several times greater than h1 and h2, or at least that H is at least three times greater than h1 and h2.

[0029] The depth of the grooves 14, 15 corresponds to the respective height of the projections 16, 17.

[0030] In Fig. It can also be seen that the third sub-surface 12 adjacent to the interior 3 of the housing 1 is positioned higher than the fourth sub-surface 13 adjacent to the exterior 4. Similarly, the first sub-surface 10 adjacent to the interior 3 of the housing 1 is positioned higher than the second sub-surface 11 adjacent to the exterior 4.

[0031] According to the illustrated embodiment, the first projection 16 and the second projection 17 are designed as circumferential or nearly circumferential projections, wherein the first groove 14 and the second groove 15 are designed as circumferential or nearly circumferential grooves. However, it can also be designed such that the first projection 16 or the second projection 17 is designed as a circumferential or nearly circumferential projection, wherein the first groove 14 or the second groove 15 is designed as a circumferential or nearly circumferential groove.

[0032] Alternatively, the first projection 16 and / or the second projection 17 can be subdivided into partial projections that are arranged in a row to form an substantially circumferential or nearly circumferential projection, wherein the first groove 14 and / or the second groove 15 are subdivided into partial grooves that are arranged in a row to form an substantially circumferential or nearly circumferential groove. On the cross-section of the Fig. However, when viewed from point 1, this difference between these embodiments is not apparent.

[0033] The Fig. 2 and Fig. Figure 3 shows further embodiments in a view of surface 8, in which the first projection 16 and the second projection 17, or the partial projections 21, 22 of the first projection 16 and the second projection 17, are curved in an arc, wherein the first groove 14 and / or the second groove 15, or the partial grooves of the first groove 14 and / or the second groove 15, are correspondingly curved in an arc. Individual projections 16, 17, or partial projections 21, 22 can also be straight or curved, while other projections 16, 17, or partial projections 21, 22 are curved or straight. Thus, a mixture of straight and curved projections and corresponding grooves can also be provided.

[0034] Also in the Fig. 2 to recognize that the partial projections 21 of the first projection 16 and the partial projections 22 of the second projection 17 are arranged offset from each other, wherein the partial grooves of the first groove and the partial grooves of the second groove are arranged offset from each other accordingly, which, however, is not shown.

[0035] It is also possible (see Fig. 3) that the partial projections 21 of the first projection 16 are arranged in multiple rows and / or the partial projections 22 of the second projection 17 are arranged in multiple rows, wherein the partial projections 21 of individual rows are arranged offset from each other, wherein the partial grooves of the first groove are arranged in multiple rows and / or the partial grooves of the second groove are arranged in multiple rows, wherein the partial grooves of individual rows are arranged offset from each other.

Claims

[1] Housing (1) with a seal (2), which has a first housing part (5) and a second housing part (6) enclosing an interior (3) of the housing (1), wherein the first housing part (5) has a first surface (7) and the second housing part (6) has a second surface (8) which, when closed, are opposite each other and form a gap (9) between them, characterized by, that the first surface (7) forms a first sub-surface (10) and a second sub-surface (11) and the second surface (8) forms a third and a fourth sub-surface (12, 13), wherein the first sub-surface (10) forms a first groove (14) and the second sub-surface (11) forms a second groove (15), wherein the third sub-surface (12) forms a first projection (16) compatible with the first groove (14) and the fourth sub-surface (13) forms a second projection (17) compatible with the second groove (15), such that the first projection (16) engages in the first groove (14) when the housing (1) is closed and the second projection (17) engages in the second groove (15) when the housing (1) is closed, wherein a seal (18) is arranged in the gap (9) between the first housing part (5) and the second housing part (6). [2] Housing (1) according to claim 1, characterized by, that the first sub-area (10) is offset by one step (19) relative to the second sub-area (11) and that the third sub-area (12) is offset by one step (20) relative to the fourth sub-area (13), each in a direction approximately perpendicular to the sub-areas (10, 11, 12, 13). [3] Housing (1) according to claim 2, characterized by , that the steps (19, 20) have a height H and the first projection (16) has a height h1 and the second projection (17) has a height h2, where H is greater than h1 and H is greater than h2, in particular H is several times greater than h1 and h2, at least that H is at least three times greater than h1 and h2. [4] Housing (1) according to claim 2 or 3, characterized by , that the third sub-surface (12) adjacent to the interior (3) of the housing (1) is arranged higher than the fourth sub-surface (13) adjacent to the exterior (4). [5] Housing (1) according to any one of the preceding claims, characterized by, that the first projection (16) and / or the second projection (17) are designed as a circumferential or nearly circumferential projection, wherein the first groove (14) and / or the second groove (15) are designed as a circumferential or nearly circumferential groove. [6] Housing (1) according to any one of the preceding claims, characterized by , that the first projection (16) and / or the second projection (17) is / is subdivided into partial projections (21, 22) which are arranged in a row and form an substantially circumferential or nearly circumferential projection, wherein the first groove (14) and / or the second groove (15) is / is subdivided into partial grooves which are arranged in a row and form an substantially circumferential or nearly circumferential groove. [7] Housing (1) according to one of the preceding claims 5 or 6, characterized by, that the first projection (16) and / or the second projection (17) or the partial projections (21, 22) of the first projection (16) or of the second projection (17) are formed in a straight or arc-shaped manner, wherein the first groove (14) and / or the second groove (15) or the partial grooves of the first groove (14) or of the second groove (15) are formed in a straight or arc-shaped manner. [8] Housing (1) according to claim 7, characterized by , that the partial projections (21) of the first projection (16) and the partial projections (22) of the second projection (17) are arranged offset from each other, wherein the partial grooves of the first groove (14) and the partial grooves of the second groove (15) are arranged offset from each other. [9] Housing (1) according to claim 7 or 8, characterized by, that the partial projections (21) of the first projection (16) are arranged in multiple rows and / or the partial projections (22) of the second projection (17) are arranged in multiple rows, wherein the partial projections (21, 22) of individual rows are arranged offset from each other, wherein the partial grooves of the first groove (14) are arranged in multiple rows and / or the partial grooves of the second groove (15) are arranged in multiple rows, wherein the partial grooves of individual rows are arranged offset from each other. [10] Housing (1) according to any one of the preceding claims, characterized by that the seal (18) is made of or has an elastic material, in particular polyurethane or butyl.

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