Abstract
A pressure compensation element includes a plastic part and a membrane, wherein the plastic part has an upper and an underside and at least one hole extending from the upper to the underside. At least one hole is formed in an offset manner and/or in that at least one bridge-type element is arranged on the upper or the underside of the plastic part, and extends over the at least one hole
Claims
1. A pressure compensation element having a plastic part and a membrane, wherein the plastic part has an upper and an underside and at least one hole extending from the upper to the underside, wherein the at least one hole is formed in an offset manner and/or at least one bridge-type element is arranged on the upper or the underside of the plastic part, and extends over the at least one hole.
2. The pressure compensation element according to claim 1, wherein the plastic part has a circumferential collar.
3. The pressure compensation element (10) according to claim 1, wherein the plastic part has at least one spacer element.
4. The pressure compensation element according to claim 1, wherein the plastic part has at least one circumferential groove and/or one circumferential lamella (30) which is arranged on the circumferential collar.
5. A sensor assembly comprising: a housing part; and a pressure compensation element having a plastic part having a circumferential collar, and a membrane, wherein the plastic part has an upper and an underside and at least one hole extending from the upper to the underside, wherein the at least one hole is formed in an offset manner and/or at least one bridge-type element is arranged on the upper or the underside of the plastic part, and extends over the at least one hole; wherein the housing part has a hole and the pressure compensation element is arranged in the hole.
6. The sensor assembly according to claim 5, wherein an adhesive connection is arranged between the circumferential collar of the plastic part and the housing part.
7. The sensor assembly according to claim 5, wherein the housing part is formed from a metal.
8. A sensor assembly having according to claim 5, further comprising a sensor element wherein the housing part encloses the sensor element.
9. The sensor assembly according to claim 8, wherein the sensor element is a radar sensor.
10. (canceled)
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Further advantageous configurations are set out in the drawings, wherein:
[0027] FIG. 1: shows a schematic representation of a plastic part of a pressure compensation element according to the invention according to a first configuration;
[0028] FIG. 2: shows a sectional representation of the plastic part from FIG. 1;
[0029] FIG. 3a: shows a view of an underside of the plastic part from FIG. 1;
[0030] FIG. 3b: shows a view of an upper side of the plastic part from FIG. 1;
[0031] FIG. 4: shows a schematic representation of a pressure compensation element according to the invention in a configuration;
[0032] FIG. 5: shows a schematic representation of a plastic part in a further configuration; and
[0033] FIG. 6: shows an exploded representation of a housing according to the invention in a configuration.
DETAILED DESCRIPTION
[0034] FIG. 1 shows a schematic representation of a plastic part 14 of a pressure compensation element according to a first configuration. The plastic part 14 has an upper side 16 and an underside 18 and a circumferential collar 20. The circumferential collar 20 serves in particular to connect the plastic part 14 to other elements such as, for example, a housing part. The plastic part 14 may be formed from a polybutylene terephthalate.
[0035] FIG. 2 shows a sectional representation of the plastic part 14 from FIG. 1. The plastic part 14 has a cavity 28, in each case, both on the upper side 16 and on an underside 18. The cavity 28 serves in particular to receive the membrane. The plastic part 14 also has at least one hole 22. The hole 22 extends from the upper side 16 of the plastic part 14 up to the underside 18 of the plastic part 14, wherein the hole 22 is formed in an offset or stepped manner, as a result of which an inlet 24 of the hole 22 and an outlet 26 of the hole 22 do not lie above one another in a planar manner, but rather are arranged displaced with respect to one another.
[0036] FIG. 3a shows a view of an underside 18 of the plastic part 14 from FIG. 1. A multiplicity of holes 22, which are arranged on a circular path, can be seen. The holes 22 are in particular holes formed in an offset manner. The circumferential collar 20 can also be seen, wherein circumferential lamellae 30 are arranged on the collar 20.
[0037] FIG. 3b shows a view of an upper side 16 of the plastic part 14 from FIG. 1. A multiplicity of holes 22, which are arranged on a circular path, can be seen. The holes 22 are in particular holes formed in an offset manner. Here as well, the circumferential collar 20 can also be seen, wherein circumferential lamellae 30 are in turn arranged on the collar 20.
[0038] FIG. 4 shows a schematic representation of a pressure compensation element 10 according to the invention in a configuration. The pressure compensation element 10 comprises a plastic part 14, in particular a plastic part 14, as has been described regarding the preceding figures, and a membrane 12. The membrane 12 is arranged in a recess 28 of the plastic part 14 which is located on the upper side of the plastic part 14. However, it is also conceivable that the membrane is not arranged on the upper side, but rather on the underside of the plastic part 14. The arrangement of the membrane on the plastic part depends in particular on the intended purpose of the pressure compensation element.
[0039] FIG. 5 shows a schematic representation of a plastic part 14 in a further configuration. The plastic part 14 has a multiplicity of holes 34, wherein the holes 34 are in particular formed in a straight line. This is in particular to be understood to mean that the inlet and the outlet of a hole 34 are aligned with one another. The plastic part 14 also has a bridge-type element 32 on its upper side 16. The bridge-type element 32 is formed in such a manner that, when looking vertically at the upper side 16 of the plastic part 14, the at least one hole 34 is not visible to the observer. That is to say that the bridge-type element 32 covers or spans the hole 34. The bridge-type element 32 is connected at its two ends to the upper side 16 of the plastic part 14, as a result of which the bridge-type element 32 substantially has a bridge-shaped configuration. The bridge-type element 32 and the plastic part 14 are preferably integrally formed. Furthermore, the plastic part 14 additionally has spacer elements 36. The spacer elements 36 are arranged at least on one side of the circumferential collar 20. The spacer elements 36 are preferably a uniform distance from one another. The spacer elements 36 are in particular formed in the shape of a pin.
[0040] FIG. 6 shows an exploded representation of a housing 38 according to a configuration. The housing 38 comprises at least one housing part 40 which is in particular formed from a metal, and a pressure compensation element 10. The housing part 40 comprises a hole 40 which is formed in such a manner that it is suitable for receiving the pressure compensation element 10 or for receiving the plastic part 14. The housing part 40 and the pressure compensation element 10 or the plastic part 14 may be connected to one another in a firmly bonded manner, advantageously via an adhesive connection. In particular, the adhesive connection is located between the circumferential collar of the plastic part 14 and the housing part 38.
[0041] The invention has been described above with reference to exemplary embodiments. It is understood that numerous amendments and modifications are possible, without departing from the scope of protection defined by the claims. A combination of the various exemplary embodiments is also possible.
