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US 8,757,415 B2Granted
Housing for an electronic or mechtronic unit including seal with pressure relief device
AssigneeWABCO GmbH
InventorsHans-Ulrich Bornhof, Heinrich Diekmeyer, Detlev Eggebrecht
Life of this patent
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Abstract
A device housing, especially for accommodating an electronic unit or a mechatronic unit, has parts which are sealed against one another in assembled condition via an encircling, stationary seal. At least one pressure-relief device is integrated into the seal for admission of air into the housing. The seal is formed at least in part as a lip that opens under overpressure conditions inside the housing. To allow any water that has penetrated to flow away, the housing is mounted vertically, with the pressure-relief device disposed at the bottom.
Claims28
A housing comprising:
- a first housing part;
- a second housing part, the first and second housing parts defining an interior volume therebetween;
- at least one breathing bore defined in one of the first and second housing parts;
- and
- a seal operable to seal the first housing part with respect to the second housing part, the seal comprising at least one integral pressure relief device including:
- a bead portion disposed along a first side;
- protuberances disposed along a second side such that air can pass between the protuberances;
- at least one perforation sized to receive a retaining device to retain the at least one integral pressure relief device in place;
- and
- an elastic lip operable as a check valve moveable to an open position by over-pressure in an interior space defined between the first and second housing parts.
7 more elements
A housing comprising:
- a first housing part;
- a second housing part, the first and second housing parts defining an interior volume therebetween;
- at least one breathing bore defined in one of the first and second housing parts;
- and
- a seal operable to seal the first housing part with respect to the second housing part, the seal comprising at least one integral pressure relief device including:
- a bead portion disposed along a first side;
- protuberances disposed along a second side such that air can pass between the protuberances;
- at least one perforation sized to receive a retaining device to retain the at least one integral pressure relief device in place;
- and
- an elastic lip operable as a check valve moveable to an open position by over-pressure in an interior space defined between the first and second housing parts, wherein at least one of the first and second housing parts has a groove defined therein for receiving the seal.
7 more elements
A housing comprising:
- a first housing part;
- a second housing part, the first and second housing parts defining an interior volume therebetween;
- at least one breathing bore defined in one of the first and second housing parts;
- and
- a seal operable to seal the first housing part with respect to the second housing part, the seal comprising at least one integral pressure relief device including:
- a bead portion disposed along a first side;
- protuberances disposed along a second side such that air can pass between the protuberances;
- at least one perforation sized to receive a retaining device to retain the at least one integral pressure relief device in place;
- and
- an elastic lip operable as a check valve moveable to an open position by over-pressure in an interior space defined between the first and second housing parts, wherein the seal comprises a static portion and a transition portion between the static portion and the elastic lip, and wherein the static portion comprises at least one knob disposed on a periphery thereof.
7 more elements
A housing assembly comprising:
- a housing including a first housing part and a second housing part, the first and second housing parts defining an interior volume therebetween;
- a seal encircling a periphery of the housing to seal the first and second housing parts;
- at least one pressure relief device integrated into the seal, wherein the at least one pressure relief device is disposed proximate a bottom of the housing;
- and
- at least one elastic lip integrated into the at least one pressure relief device, wherein the at least one elastic lip assumes an open position in response to an over-pressure condition within the housing;
- and
- wherein the housing further comprises a labyrinth structure defined between the first and second housing parts that inhibits entry of liquid into the interior volume, the labyrinth structure comprising stepped portions disposed proximate the seal.
4 more elements
A housing assembly comprising:
- a housing including a first housing part and a second housing part, the first and second housing parts defining an interior volume therebetween;
- a seal encircling a periphery of the housing to seal the first and second housing parts;
- at least one pressure relief device integrated into the seal, wherein the at least one pressure relief device is disposed proximate a bottom of the housing;
- and
- at least one elastic lip integrated into the at least one pressure relief device, wherein the at least one elastic lip assumes an open position in response to an over-pressure condition within the housing;
- wherein the housing further includes a labyrinth structure defined between the first and second housing parts that inhibits entry of liquid into the interior volume, wherein the labyrinth structure is disposed proximate the seal, and wherein the housing further includes:
- a groove for receiving the seal.
4 more elements
A housing comprising:
- a housing portion including a first housing part and a second housing part the first and second housing parts defining an interior volume therebetween;
- and
- an encircling seal for sealing the first housing part and the second housing part, wherein the seal includes:
- at least one pressure relief device proximate a single side of the housing portion, wherein the at least one pressure relief device comprises:
- a bead portion disposed across a back surface of the pressure relief device;
- at least one protuberance disposed on a front surface of the pressure relief device, wherein the at least one protuberance is operable to pass air;
- and
- an elastic lip operable to assume a venting position in response to over-pressure within the housing portion.
5 more elements
A housing comprising:
- a housing portion including a first housing part and a second housing part, the first and second housing parts defining an interior volume therebetween;
- and
- an encircling seal for sealing the first housing part and the second housing part, wherein the seal includes:
- at least one pressure relief device proximate a single side of the housing portion, wherein the at least one pressure relief device comprises:
- a bead portion disposed across a back surface of the pressure relief device;
- at least one protuberance disposed on a front surface of the pressure relief device, wherein the at least one protuberance is operable to pass air;
- and
- an elastic lip operable to assume a venting position in response to over-pressure within the housing portion, wherein at least one of the first and second housing parts has a groove defined therein for receiving the seal.
5 more elements
A housing comprising:
- a housing portion including a first housing part and a second housing part, the first and second housing parts defining an interior volume therebetween;
- and
- an encircling seal for sealing the first housing part and the second housing part, wherein the seal includes:
- at least one pressure relief device proximate a single side of the housing portion, wherein the at least one pressure relief device comprises:
- a bead portion disposed across a back surface of the pressure relief device;
- at least one protuberance disposed on a front surface of the pressure relief device, wherein the at least one protuberance is operable to pass air;
- and
- an elastic lip operable to assume a venting position in response to over-pressure within the housing portion, wherein the seal further includes a static portion and a transition portion between the static portion and the at least one pressure relief device, and wherein the static portion comprises at least one knob disposed on a periphery thereof.
5 more elements
Dependencies are inferred from the claim text.