Housing with pressure compensating element

Patent metadata

Field	Value
Publication number	US-11274986-B2
Application number	US-201816767522-A
Country	US
Kind code	B2
Filing date	Nov 30, 2018
Priority date	Nov 30, 2017
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A housing is disclosed. In an embodiment a housing includes a housing opening, a pressure-compensating element mounted on an inner side of the housing opening, a protective wall mounted on an outer side of the housing opening surrounding the housing opening and a bridge arranged over the outer side of the housing opening and protruding beyond the housing opening, wherein the bridge is shaped and arranged such that a projection of the bridge at least partially covers the housing opening.

First claim

The invention claimed is:

1. A housing comprising:
a housing opening;
a pressure-compensating element mounted on an inner side of the housing opening;
a protective wall mounted on an outer side of the housing opening surrounding the housing opening; and
a bridge arranged over the outer side of the housing opening and protruding beyond the housing opening,
wherein the bridge is shaped and arranged such that a projection of the bridge at least partially covers the housing opening,
wherein the protective wall has two mutually opposite portions separated from one another by two cutouts, and
wherein the bridge extends along a direction of a connecting line between the cutouts.

2. The housing according to claim 1 , wherein the protective wall is designed to deflect jet water.

3. The housing according to claim 1 , wherein the bridge is designed to deflect perpendicularly incident jet water.

4. The housing according to claim 1 , wherein the housing opening is covered by the bridge at least in a central region.

5. The housing according to claim 1 ,
wherein the protective wall circularly surrounds the housing opening, or
wherein the protective wall is arranged around the housing opening in certain portions in a circular segment shape.

6. The housing according to claim 1 , wherein a length of the protective wall in a direction perpendicular to the housing opening is at least five times a diameter of the housing opening.

7. The housing according to claim 1 , wherein the housing opening is covered by the projection of the bridge to an extent of at least 60%.

8. The housing according to claim 1 , wherein a housing interior is formed in the housing and is connected to surroundings of the housing only via the housing opening.

9. The housing according to claim 8 , wherein the housing opening is arranged in a bottom of the housing interior, and wherein the bottom is flat.

10. The housing according to claim 8 , wherein the housing opening is arranged in a bottom of the housing interior, and wherein the bottom has a first region, in which the housing opening is formed, and a second region, which is offset with respect to the first region by a step.

11. The housing according to claim 8 , wherein the housing opening is configured to ensure pressure compensation between the housing interior and the surroundings of the housing.

12. The housing according to claim 1 , wherein the pressure-compensating element is permeable to gaseous media and impermeable to liquid media.

13. The housing according to claim 1 , wherein the housing meets requirements of protection class IP X9k.

14. The housing according to claim 1 ,
wherein the housing has a housing wall, which forms the outer side of the housing, and
wherein the housing wall extends further in a direction away from the housing opening than the protective wall so that an end of the protective wall that is remote from the housing opening does not protrude beyond the housing wall.

15. The housing according to claim 14 , wherein the housing wall and the protective wall are formed by different regions of a one-piece injection-molded part.

16. The housing according to claim 1 , wherein the pressure-compensating element is applied to the inner side of the housing opening by a welding process.

17. The housing according to claim 1 , wherein the housing is a pressure sensor housing.

18. A sensor comprising:
the housing according to claim 1 ; and
a sensor element arranged inside the housing.

19. A housing comprising:
a housing opening;
a pressure-compensating element mounted on an inner side of the housing opening;
a protective wall mounted on an outer side of the housing opening surrounding the housing opening; and
a bridge arranged over the outer side of the housing opening and protruding beyond the housing opening,
wherein the bridge is shaped and arranged such that a projection of the bridge at least partially covers the housing opening,
wherein a housing interior is formed in the housing and is connected to surroundings of the housing only via the housing opening,
wherein the housing opening is arranged in a bottom of the housing interior, and
wherein the bottom has a first region, in which the housing opening is formed, and a second region, which is offset with respect to the first region by a step.

20. A housing comprising:
a housing opening;
a pressure-compensating element mounted on an inner side of the housing opening;
a protective wall mounted on an outer side of the housing opening surrounding the housing opening; and
a bridge arranged over the outer side of the housing opening and protruding beyond the housing opening,
wherein the bridge is shaped and arranged such that a projection of the bridge at least partially covers the housing opening,
wherein the housing has a housing wall, which forms the outer side of the housing, and
wherein the housing wall extends further in a direction away from the housing opening than the protective wall so that an end of the protective wall that is remote from the housing opening does not protrude beyond the housing wall.

Assignees

• Tdk Electronics Ag

Inventors

• Bohl Benjamin
• Mietke Daniel

Classifications

• G01L19/141 Primary

  Monolithic housings, e.g. molded or one-piece housings · CPC title

• H05K5/0215 Primary

  with semi-permeable membranes attached to casings · CPC title

• G01L19/06

  Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa · CPC title

• G01L19/14

  Housings {(G01L19/0007, G01L19/0084, G01L19/0092, G01L19/04, G01L19/06 take precedence)} · CPC title

• H05K5/06

  Hermetically-sealed casings {(specially adapted for small components H05K5/0095)} · CPC title