EP4127526A1 - Bauelement - Google Patents
BauelementInfo
- Publication number
- EP4127526A1 EP4127526A1 EP21716089.4A EP21716089A EP4127526A1 EP 4127526 A1 EP4127526 A1 EP 4127526A1 EP 21716089 A EP21716089 A EP 21716089A EP 4127526 A1 EP4127526 A1 EP 4127526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing element
- interior
- housing
- sealing
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3296—Arrangements for monitoring the condition or operation of elastic sealings; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/068—Hermetically-sealed casings having a pressure compensation device, e.g. membrane
Definitions
- a component is specified.
- the component can have a housing with an interior space that is to be protected against moisture and / or particles.
- Hermetically sealed housings can be used to protect the interior of the housing against moisture and particles.
- pressure differences can occur between the internal volume and the external atmospheric pressure. These arise, for example, from changes in temperature, fluctuations in air pressure or a change in altitude within the atmosphere. The pressure difference can deform the housing and damage its seal. If a pressure measuring sensor is built into the housing or the housing is part of a relative pressure sensor, the pressure difference leads to a measurement error. Likewise, condensation can occur in a closed housing due to a lack of ventilation.
- Pressure compensation element requires a sophisticated design, so that it is not mechanically damaged or soiled when used in harsh environmental conditions, for example.
- the pressure compensation element must also be protected from a direct water jet, for example. From the publications DE 102017 128 460 A1,
- At least one object of certain embodiments is to specify a component, in particular a component with a housing.
- a component has a housing with an interior.
- the component can have at least one component that is to be protected, for example, from moisture and / or particles and / or other contaminants.
- the component can be an electrical one Be a component and have at least one electrical or electronic component, that is, a component with an electrical or electronic functionality.
- the at least one electrical or electronic component can in particular be arranged and electrically connected in the interior.
- the component can, for example, additionally or alternatively be a chemical and / or magnetic component and have at least one component with a chemical and / or magnetic functionality in the interior.
- Other functionalities are also possible.
- the component can also have a combination of several components with different functionalities and / or at least one component with several functionalities.
- the at least one electrical or electronic component can have or be at least one sensor element.
- a property to be measured by the sensor element can particularly preferably be a pressure, so that the component can be designed as a pressure sensor, for example.
- the sensor element can, for example, have or be a pressure sensor chip.
- a property to be measured by the sensor element can also be a temperature, for example, so that the component can additionally or alternatively also be designed as a temperature sensor.
- the sensor element can have or be a thermistor, for example.
- the sensor element can also be designed as an optical sensor, for example.
- the component can also have a plurality of sensor elements, which can be selected, for example, from the sensor elements described, so that the electrical component can be used to measure multiple parameters.
- the component alternatively or additionally has at least one electrical or electronic component in the interior that does not have a sensor function.
- the at least one electronic component can have or be one or more electronic components such as an ASIC (application-specific integrated circuit).
- An ASIC can, for example, be set up and provided to control another electronic component such as a sensor element.
- the housing has at least a first housing part and a second housing part.
- the housing parts which can be designed in one or more parts, can in particular at least partially surround the interior of the housing.
- the first and second housing parts can be joined together to manufacture the housing and thereby form and enclose the interior space.
- even more housing parts can be present, which are arranged and / or fastened to the first and / or second housing part.
- a component arranged in the interior forms part of a housing wall between the interior and the surrounding atmosphere.
- a component designed as a pressure sensor this can be a sensor element, for example in the form of a pressure sensor chip.
- the component has a sealing element which is arranged between the first and second housing parts.
- the first housing part particularly preferably has a first sealing surface and the second housing part has a second sealing surface, the sealing element in each case resting on the first sealing surface and on the second sealing surface.
- the sealing element is arranged between the first and second sealing surface and is particularly preferably in direct mechanical contact with the first sealing surface and with the second sealing surface.
- the first and second sealing surfaces are arranged opposite one another as seen from the sealing element.
- the sealing element is arranged in particular in a sealing area provided for the sealing element, which is preferably delimited on two sides by the first and second sealing surface.
- the sealing element has an inner surface which is in contact with the interior. Furthermore, the sealing element has an outer surface which is in contact with an atmosphere surrounding the housing.
- a gas atmosphere that is present in the interior of the housing adjoins the inner surface of the sealing element, while the atmosphere surrounding the housing adjoins the outer surface of the sealing element. If you think away from the sealing element, there is in particular a continuous path from the interior to the surrounding atmosphere and vice versa. The interior space is thus spatially separated from the surrounding atmosphere by the sealing element.
- the sealing element can for example be selected from an O-ring, a cord seal, a flat seal and an injection molded seal.
- the sealing element can be used instead of a conventional seal.
- the first and second sealing surfaces of the first and second housing parts can be parts of an, for example, annular sealing area in which the sealing element is arranged.
- the sealing element has a material through which a gas exchange takes place between the interior and the surrounding atmosphere.
- a gas exchange takes place between the interior and the surrounding atmosphere.
- the at least one gas species can penetrate the sealing element under normal operating conditions of the component and can get into the interior space from the surrounding atmosphere and vice versa.
- the at least one gas species can preferably have or be one or more constituents of air.
- the sealing element can furthermore particularly preferably be repellent for moisture and particles. This can mean in particular that moisture and particles from the surrounding atmosphere are at least prevented from penetrating into the interior.
- the sealing element is particularly preferably impermeable to moisture and particles.
- the sealing element thus makes it possible to achieve pressure equalization between the surrounding atmosphere and the interior, while the interior is protected from moisture and contamination by particles from the surrounding atmosphere.
- a suitable material for the sealing element and the sealing element itself can also be referred to here and below as semipermeable.
- the sealing element can thus in particular form a semi-permeable housing seal for pressure equalization of the pressure in the interior of the housing.
- the sealing element has or is made of a porous material.
- the porous material can in particular be designed in such a way that it is at least partially permeable to gases and impermeable to moisture and particles.
- the sealing element can comprise or be made from a plastic.
- the porous material can particularly preferably be a porous rubber or porous polytetrafluoroethylene (PTFE), so that the sealing element can comprise or be made from a porous rubber and / or porous PTFE.
- the rubber can be a silicone rubber, a fluorine rubber or a nitrile rubber.
- the porosity of the sealing element can in particular be adjusted so that a gas flow rate described below is achieved.
- the sealing element can have a non-porous gas-permeable polymer, for example as described in the publication DE 19882 417 TI, the disclosure content of which is incorporated by reference in this regard.
- the sealing element can be a porous material and / or a non-porous gas-permeable material with a gas flow rate F for air of greater than or equal to 0.1 l / (hxcm 3 ) or of greater than or equal to 0.31 / (hxcm 3 ) or of greater than or equal to 11 / (hxcm 3 ).
- gas exchange between the interior space and the surrounding atmosphere takes place exclusively through the sealing element.
- the housing is free of a ventilation opening for ventilating the interior, as is usually used in the prior art.
- this can mean that the interior, in the event that a different, gas-tight material is used instead of the sealing element, the housing and thus the interior would be hermetically sealed.
- the housing is sealed by the sealing element described here, which preferably comprises or can be made of a semipermeable material that is similar in function of a pressure compensation element is gas-permeable, but repels liquids and particles.
- a housing seal required due to the design can be implemented by the sealing element, in particular in the form of an O-ring, a cord seal, a flat seal or an injection-molded seal.
- the sealing element can be designed in accordance with the ISO 3601 standard.
- a semipermeable material can be used such as a porous rubber or porous PTFE and for the pressure equalization between the interior of the sealed Housing and the surrounding atmosphere.
- An additional pressure equalization opening and the necessary pressure equalization element are therefore superfluous.
- the sealing element ensures protection against liquids and particles and, on the other hand, preferably also has sufficient permeability for gases, in particular air, so that the sealing element takes on the function of a pressure compensation element. The porosity and thus the gas flow can be controlled in a targeted manner by the design of the sealing element, depending on the application.
- the sealing element is used instead of a conventional seal, it may be possible that in particular no additional splash protection against water is necessary, since seals are usually installed in such a way that a splash protection already exists. Furthermore, there is no need for a membrane to be glued or welded, which would otherwise have to be provided as a pressure compensation element. Furthermore, due to the design, the sealing element, in contrast to a membrane, cannot be lost and is safe against pressure surges and can be exchanged, which can result in better serviceability. In contrast to this, a membrane such as that used for pressure compensation elements would be glued or welded and therefore not exchangeable.
- Figures 1A and 1B are schematic representations of a
- FIGS. 2A and 2B schematic representations of sections of a component according to further exemplary embodiments.
- FIGS. 1A and 1B show an exemplary embodiment for a component 100, FIG. 1B showing a detail of the view in FIG. 1A. The following description applies equally to FIGS. 1A and 1B.
- the component 100 has a housing 1 which encloses an interior 10. In the interior 10, as indicated by the dashed line, at least one component 3 can be arranged and electrically connected depending on the functionality.
- the component 100 is designed purely by way of example as an electrical component and has, as component 3, an electrical or electronic component which is arranged in the interior 10 and is electrically connected.
- the component 100 can also have chemical and / or magnetic and / or other functionalities and one or more have corresponding components.
- the component 100 can be a pressure sensor such as a high pressure sensor and / or a differential pressure sensor.
- the component 100 that is to say for example the housing 1, in particular contain one or more pressure feeds and electrical connections as well as further components which are not shown for the sake of clarity.
- the indicated component 3 in the form of an electronic component can have or be a sensor element, in particular a pressure sensor element in the form of a pressure sensor chip, which can be designed, for example, as a silicon-based pressure sensor chip such as a piezoresistive silicon pressure sensor chip.
- the sensor element can also be designed as a capacitive ceramic pressure sensor chip, a piezoresistive thick- or thin-film-based pressure sensor chip based on metallic or ceramic bending plates, or as an inductive pressure sensor chip.
- one or more further electronic components such as an ASIC (application-specific integrated circuit) can be arranged and electrically connected in the interior 10 of the housing 1, which is set up and provided, for example, to control the sensor element.
- ASIC application-specific integrated circuit
- the component 100 is not limited to pressure sensors. As an alternative or to the pressure sensor application described, the component 100 can also fulfill a different function and accordingly have at least one other component 3.
- the housing 1 has in particular at least a first housing part 11 and a second housing part 12, which are joined together to form the housing 1 or at least a part thereof and which surround the interior 10.
- Each of the housing parts 11, 12 can be designed in one or more parts.
- even more housing parts can be present, which are arranged and / or fastened to the first and / or second housing part.
- the component 3 forms part of a housing wall that separates the interior 10 from the surrounding atmosphere.
- Sealing element 2 arranged in a sealing area 20.
- the first housing part 11 has a first sealing surface 13 and the second housing part 12 has a second sealing surface 14, the sealing element 2 resting against the first sealing surface 13 and the second sealing surface 14.
- the sealing element 2 is arranged between the first and second sealing surfaces 13, 14 and is particularly preferably in direct mechanical contact with the first sealing surface 13 and with the second sealing surface 14, the first and second sealing surfaces 13, 14 particularly preferably one another as seen from the sealing element 2 are arranged opposite one another.
- the sealing area 20 can thus be delimited on two sides by the first and second sealing surfaces 13, 14.
- the sealing element 2 has a material through which a gas exchange 90 takes place between the interior 10 and the surrounding atmosphere, as indicated by the double arrow.
- a gas exchange 90 takes place between the interior 10 and the surrounding atmosphere, as indicated by the double arrow.
- at least one gas species in particular gases from the air, can penetrate the sealing element 2 and get into the interior 10 from the surrounding atmosphere and vice versa.
- a pressure equalization between the interior 10 and the surrounding atmosphere is thus possible, so that the pressure in the interior 10 can adapt to a changing pressure in the surrounding atmosphere, for example due to a change in temperature.
- the sealing element 2 is also set up and provided to repel moisture and particles. This can mean in particular that the sealing element 2 is preferably at least partially or particularly preferably substantially or even completely impermeable to moisture and particles and has a corresponding repelling behavior 91, as indicated by the correspondingly identified arrow. This enables pressure equalization between the surrounding atmosphere and the interior 10, while the interior 10 is protected from moisture and contamination by particles from the surrounding atmosphere.
- the sealing element 2 correspondingly forms a semipermeable housing seal for pressure equalization of the pressure in the interior 10 of the housing 1 and for simultaneous protection against moisture and contamination.
- the sealing element 2 can be designed, for example, as an O-ring or as a cord seal.
- the sealing area 20 forms thus, in the exemplary embodiment shown, a contiguous annular region which radially surrounds the interior space 10.
- the sealing element 2 has or is made of a porous material that is permeable to at least one gas species and repellent, ie particularly preferably impermeable, is for moisture and particles.
- the sealing element 2 can comprise or be made of a plastic.
- the porous material can particularly preferably be a porous rubber such as a silicone rubber, a fluororubber or a nitrile rubber or porous polytetrafluoroethylene (PTFE), so that the sealing element 2 can comprise or be made from a porous rubber and / or porous PTFE can.
- the sealing element 2 can also have a gas-permeable, non-porous material, as described above in the general part.
- a gas exchange between the interior 10 and the surrounding atmosphere takes place preferably only through the sealing element 2, so that the housing 1 is free of any other ventilation opening for ventilating the interior 10.
- the gas exchange 90 caused by the gas permeability and the rejection behavior 91 with regard to moisture and particles can be adjusted depending on the application and ambient conditions by a suitable choice of material for the sealing element 2 in order to achieve a sufficiently rapid pressure equalization while protecting the interior 10. Pressure compensation can be achieved, for example, in the event of temperature changes in the environment to be required.
- the sealing element 2 has a gas flow rate of greater than or equal to 0.11 / (hxcm 3 ) or of greater than or equal to 0.3 1 / (hxcm 3 ) or of greater than or equal to 1 1 / (hxcm 3 ) having.
- FIGS. 2A and 2B sections of further exemplary embodiments for the component 100 are shown, which correspond to the section in FIG. 1B.
- the sealing element 2 can also be designed as a flat seal as an alternative to the previous exemplary embodiment.
- the sealing element 2 can also be designed as an injection-molded seal. For this purpose, it can be advantageous if at least one of the sealing surfaces 13, 14 has a channel 15 into which the
- Sealing element 2 can be injected.
- both housing parts 11, 12 can also have a channel 15 in the corresponding sealing surface 13, 14.
- a channel in one or both sealing surfaces 13, 14 can also be used in conjunction with a
- O-ring, cord seal or flat seal formed sealing element 2 be advantageous.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Measuring Fluid Pressure (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020109059.5A DE102020109059A1 (de) | 2020-04-01 | 2020-04-01 | Bauelement |
| PCT/EP2021/057597 WO2021197965A1 (de) | 2020-04-01 | 2021-03-24 | Bauelement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4127526A1 true EP4127526A1 (de) | 2023-02-08 |
Family
ID=75362571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21716089.4A Pending EP4127526A1 (de) | 2020-04-01 | 2021-03-24 | Bauelement |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11982353B2 (de) |
| EP (1) | EP4127526A1 (de) |
| CN (1) | CN114271039A (de) |
| DE (1) | DE102020109059A1 (de) |
| WO (1) | WO2021197965A1 (de) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3938782A1 (de) * | 1989-11-23 | 1991-05-29 | Bosch Gmbh Robert | Druckausgleichselement fuer ein geraet, insbesondere einen drucksensor, und verfahren zur herstellung eines derartigen druckausgleichselements |
| DE19652228A1 (de) * | 1996-12-16 | 1998-06-18 | Bosch Gmbh Robert | Teilpermeabler Dichtkörper |
| EP1244899B1 (de) * | 2000-01-06 | 2005-03-09 | Rosemount Inc. | Verfahren und vorrichtung für einen direkt gebondeten isolierten drucksensor |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3058232A (en) * | 1960-01-20 | 1962-10-16 | Nat Res Corp | High vacuum |
| DE4329980A1 (de) | 1993-09-04 | 1994-10-06 | Bosch Gmbh Robert | Ein- oder mehrteiliges flüssigkeitsdichtes Gehäuse |
| US5516122A (en) * | 1993-12-10 | 1996-05-14 | Caffee; Barry K. | Ultra high vacuum elastomer seal |
| EP0741766B1 (de) | 1994-01-24 | 1998-09-09 | W.L. Gore & Associates, Inc. | Wiederverwendbare elastische dichtung |
| US5914154A (en) | 1997-05-30 | 1999-06-22 | Compact Membrane Systems, Inc. | Non-porous gas permeable membrane |
| US6715772B1 (en) * | 2000-02-09 | 2004-04-06 | Playtex Products, Inc. | Means for venting gas pressure buildup from a package |
| JP2005282820A (ja) * | 2004-03-30 | 2005-10-13 | Tokai Rubber Ind Ltd | 低透過性弾性シールリング |
| JP4672530B2 (ja) | 2005-11-17 | 2011-04-20 | 日東電工株式会社 | 通気部材 |
| DE102010015610B4 (de) | 2010-04-19 | 2022-08-25 | Axel R. Hidde | Dichtring mit Membranventil |
| DE102010015674A1 (de) * | 2010-04-21 | 2011-10-27 | Wabco Gmbh | Ein Gehäuse mit einem Verformungsbereich zum Druckausgleich sowie eine Anordnung eines Dichtungselements in dem Gehäuse |
| DE102010053763B4 (de) | 2010-12-08 | 2020-01-02 | Carl Freudenberg Kg | Anordnung |
| CN202697094U (zh) | 2012-07-18 | 2013-01-23 | 深圳茂硕新能源技术研究院有限公司 | 一种室外开关电源的防水结构 |
| EP2722566B1 (de) * | 2012-10-19 | 2015-05-13 | Fei Company | Beschichteter O-Ring |
| DE102015214923B4 (de) | 2015-08-05 | 2019-02-14 | Continental Automotive Gmbh | Druckausgleichselement und Gehäuse mit einem solchen |
| DE102017128460A1 (de) | 2017-11-30 | 2019-06-06 | Tdk Electronics Ag | Gehäuse |
| CN110715056B (zh) * | 2019-10-21 | 2021-08-03 | 高新兴物联科技有限公司 | 密封圈和防护结构 |
| DE102021119972A1 (de) * | 2021-08-02 | 2023-02-02 | alfi GmbH Isoliergefäße, Metall- und Haushaltswaren | Elastisches Dichtelement |
-
2020
- 2020-04-01 DE DE102020109059.5A patent/DE102020109059A1/de not_active Withdrawn
-
2021
- 2021-03-24 CN CN202180005120.9A patent/CN114271039A/zh active Pending
- 2021-03-24 EP EP21716089.4A patent/EP4127526A1/de active Pending
- 2021-03-24 US US17/630,452 patent/US11982353B2/en active Active
- 2021-03-24 WO PCT/EP2021/057597 patent/WO2021197965A1/de not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3938782A1 (de) * | 1989-11-23 | 1991-05-29 | Bosch Gmbh Robert | Druckausgleichselement fuer ein geraet, insbesondere einen drucksensor, und verfahren zur herstellung eines derartigen druckausgleichselements |
| DE19652228A1 (de) * | 1996-12-16 | 1998-06-18 | Bosch Gmbh Robert | Teilpermeabler Dichtkörper |
| EP1244899B1 (de) * | 2000-01-06 | 2005-03-09 | Rosemount Inc. | Verfahren und vorrichtung für einen direkt gebondeten isolierten drucksensor |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2021197965A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021197965A1 (de) | 2021-10-07 |
| US20220252158A1 (en) | 2022-08-11 |
| US11982353B2 (en) | 2024-05-14 |
| CN114271039A (zh) | 2022-04-01 |
| DE102020109059A1 (de) | 2021-10-07 |
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Ipc: H05K 5/06 20060101AFI20251114BHEP Ipc: F16J 15/3296 20160101ALI20251114BHEP Ipc: F16J 15/06 20060101ALI20251114BHEP Ipc: F16J 15/10 20060101ALI20251114BHEP |
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Effective date: 20251202 |