Classifications

• • 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
  • H05K5/02—Details
  • H05K5/0213—Venting apertures; Constructional details thereof
  • H05K5/0215—Venting apertures; Constructional details thereof with semi-permeable membranes attached to casings
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L19/14—Housings
  • G01L19/141—Monolithic housings, e.g. molded or one-piece housings
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
  • G01L19/0618—Overload protection
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L19/14—Housings
• • 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

Definitions

• the present invention relates to a geometric
• housings which should be permeable to gaseous media, but the interior of the housing should be protected from dust and liquids. This is necessary, for example, if in the case through
• a permeable for gaseous media opening is required.
• Such housing openings are then usually with
• Corresponding loads can be, for example, by touch, by stone chipping, so-called Gravel Bombardment, or under the influence of
• Jet water eg from a high-pressure cleaning, arise. Due to the mechanical load, the DAE are destroyed, detached from the housing or are not tight during the stress. It is an object of the invention an improved housing
• a pressure compensation element should be protected against damage by jet water.
• the object is achieved by a housing according to claim 1.
• a housing having a housing opening, a pressure compensation element which is mounted on an inner side of the housing opening, a protective wall which is attached to an outer side of the housing opening and the
• a bridge Surrounding housing opening, and a bridge, which is arranged on the outside of the housing opening and projects beyond the housing opening, wherein the bridge is formed and arranged so that a projection of the bridge, the housing opening at least partially hidden.
• a housing interior may be formed, which is configured to a sensor element
• the side can be referred to, which is connected to the housing interior.
• the side can be referred to, which is connected to the housing interior.
• the bridge and the protective wall can work together
• the bridge and the protective wall may be configured to minimize the angular range in which jet water impinging on the housing is undisturbed up to the
• the bridge and the protective wall can be made of the same
• the entire housing may consist of a single injection molded part, the housing opening, the bridge and the
• the protective wall can surround the housing opening in a circle.
• the protective wall sections can surround the housing opening in a circle.
• a length of the protective wall in a direction perpendicular to the housing opening may be at least fivefold
• Diameter of the housing opening amount Preferably, the length is at least ten times the diameter of the housing opening. This ratio of the length of the
• Jet water is not deflected by the protective wall.
• Vertical incident water jet can also from the
• the length of the protective wall in this case refers to the extent of the protective wall perpendicular to the diameter of the housing opening.
• the housing opening can be covered by at least 60% of the projection of the bridge. Preferably, the housing opening is at least 80% covered by the projection of the bridge.
• the housing opening is completely off of
• the bridge may not always be possible for the bridge to completely cover the housing opening.
• a housing interior may be formed, which only via the housing opening with an environment of the
• the housing opening may be arranged in a bottom of the housing interior, wherein the bottom is flat.
• the housing opening may be arranged in a bottom of the housing interior, wherein the bottom has a first area in which the housing opening is formed, and a second area which is offset from the first area by a step.
• the housing opening may be configured to provide pressure equalization between the housing interior and the environment of the housing.
• gaseous media can pass through the pressure compensation element.
• the housing may be configured such that an ambient pressure always sets in the interior of the housing.
• the pressure compensation element may be for gaseous media
• the housing can meet the requirements of protection class IP X9k.
• IP protection classes determine the extent to which an electrical component can be exposed to environmental influences without being damaged or presenting a safety risk.
• An IP X9k enclosure is protected against ingress of water from any direction, even at high pressure, against the enclosure, with either high pressure or high pressure
• the combination of pressure compensation element, bridge and protective wall can ensure that the requirements of protection class IP X9k are met.
• the housing may have a housing wall, which is a
• the housing wall extends in a direction away from the housing opening further than the protective wall, so that a remote from the housing opening end of the protective wall does not protrude beyond the housing wall.
• the housing wall can thus protect the protective wall against mechanical damage.
• the housing wall can enclose the housing interior. Furthermore, the housing wall can enclose the protective wall.
• the housing wall and the protective wall can be formed by different areas of a one-piece injection molded part.
• the housing can be designed so that it is in
• the pressure compensation element can on the inside of the
• the housing may be a pressure sensor housing.
• Housing interior may accordingly be suitable for receiving a pressure sensor element.
• the present invention relates
• the invention relates to a sensor having the housing described above and a sensor element which is disposed within the housing.
• Figure 1 shows a sectional view of the housing according to a first embodiment, with the section line perpendicular to a bridge.
• Figure 2 shows a schematic plan view of a
• Figure 3A shows a schematic section of the housing according to a second embodiment, with the cutting line parallel to the bridge.
• FIG. 3B shows a section of FIG. 3A.
• FIG. 4 shows a perspective 3D view of the housing with a view of a side at which the housing opening
• FIG. 5 shows a schematic representation of the housing in a perspective view.
• Figure 6 shows a schematic plan view of the
• FIG. 1 shows a housing 100 according to a first embodiment
• the housing 100 is in one
• FIG. 2 shows a schematic plan view of a housing opening 1 in the direction of penetration V of a medium
• the housing 100 has a housing interior 7.
• a sensor element can be arranged in the housing interior 7.
• a recess 8 for receiving the sensor element is formed in the housing interior 7.
• Housing interior 7 is closed by a pressure compensation element 4.
• the pressure compensation element 4 serves the
• the housing 100 further includes a housing opening 1 having an outer side 11 and an inner side 12.
• the outer side 11 is connected to the outer periphery of the housing 100.
• the inner side 12 of the housing opening 1 is connected to the formed in the housing 100 housing interior 7 via the
• the housing interior 7 is only about the housing opening 1 with the outer
• the housing opening 1 has a diameter dl.
• One end of the housing opening 1 is covered by the pressure compensation element 4. This end is connected via the pressure compensation element 4 with the housing interior 7.
• the opposite end of the housing opening 1 is connected to a channel 9 surrounded by a protective wall 2.
• the housing 100 is an injection molded part.
• the housing opening 1 and the protective wall 2 are both formed in this injection molded part. In this case, the housing opening 1 and the
• the housing opening 1 is to be regarded as the area of the injection-molded part which has the diameter d1.
• a protective wall 2 the area of the injection-molded part is to be regarded, which has a second diameter d2.
• a penetration direction V of a medium through the housing opening 1 is defined in the housing interior 7, which is directed from outside to inside.
• the protective wall 2 serves to protect the housing interior 7 from large parts that could clog the housing opening 1 or cause mechanical damage to the housing opening 1.
• the protective wall 2 ensures that the housing 100 impinging jet water can only reach the housing opening 1 directly in a very small angular range. Since the protective wall 2 in the direction V has a length which is more than five times the diameter d2 of the protective wall 2, almost only reaches perpendicularly Jet water the housing opening 1, without first by the
• the protective wall 2 forms the above-mentioned channel 9, which adjoins the housing opening 1 opposite to the direction of penetration V.
• the channel 9 formed by the protective wall 2 has the diameter d2.
• the diameter d2 is greater than the diameter dl. Accordingly, the
• Housing opening 1 narrower than the channel formed by the protective wall 2 9. The transition from the channel 9 to the housing opening 1 thus forms a constriction, which is designed to prevent penetrating jet water thereof, the
• Pressure equalization element 4 to achieve unhindered.
• the protective wall 2 is enveloped by a housing wall 5.
• the housing wall 5 protects the protective wall 2 from mechanical
• the housing wall 5 and the protective wall 2 are made in one piece.
• the housing wall 5 and the protective wall 2 are made in one piece.
• Injection molded part formed.
• a protective wall 2 is here that part of the injection molded part referred to the with the
• Housing opening 1 connected channel 9 immediately surrounds.
• the outer part of the injection molded part is referred to, i. the part with the largest diameter.
• a bridge 3 is further arranged, which spans the housing opening 11.
• the bridge 3 is also an area of the injection-molded part that forms the housing 100.
• Bridge 3 is thus integral with the housing opening 1 and the protective wall 2 is formed.
• the bridge 3 is made of the same material as the housing opening 1 and the protective wall
• the bridge 3 is like that
• the bridge 3 protects the housing opening 1 from a direct penetration of the housing opening 1 by rod-like objects and jet water. As can be seen in FIG. 2, the bridge 3 completely or nearly covers the housing opening 1
• the bridge 3 covers at least a central part of the housing opening 1, so that jet water in a central part not directly into the housing opening. 1
• the pressure compensation element 4 is protected by the bridge 3 from damage by jet water.
• the bridge 3 and the protective wall 2 are designed such that it prevents by their interaction that jet water directly reaches the pressure compensation element 4, without previously through the bridge 3 or the protective wall
• the housing opening 1 is in a bottom 6 of the
• the floor 6 has a first area 6a and a second area 6b.
• Housing opening 1 is arranged in the first region 6a.
• the second region 6b is offset from the first region 6a by one step.
• the second region 6b is offset in the opposite direction to the penetration direction V with respect to the first region 6a. Accordingly, in the direction of penetration V, the inner side 12 of the housing opening 1 is elevated relative to the second region 6b of the bottom 6.
• FIG. 3A shows a housing 100 according to a second one
• FIG. 3A shows the housing in a sectional view.
• FIG. 3B shows a detail of FIG. 3 in an enlarged view.
• FIGS. 3A and 3B The sectional view shown in FIGS. 3A and 3B is based on the section line A-A, which is parallel to the bridge 3
• FIG. 3A a circular region Z is shown, which is shown in FIG. 3B as an enlarged detail.
• FIG. 3A serves to illustrate the position of the
• FIG. 3B serves for a detailed illustration of the housing opening 1.
• the bridge 3 is shown as a trapezoidal arc, which is stretched over the outer side 11 of the housing opening 1 and a recess directed towards the housing opening
• Housing opening 1 the pressure compensation element 4 is arranged.
• the second embodiment of the housing 100 differs from the first embodiment by the
• the housing interior 7 has a bottom 6, in which the housing opening 1 is formed, wherein the bottom 6 is flat.
• the protective wall 2 is not formed integrally with the housing wall 5. Rather, the protective wall 2 and the housing wall are the fifth
• the protective wall 2 does not protrude beyond the housing wall 5. Rather, that is
• the protective wall 2 is protected against mechanical stresses which act on the housing wall 5.
• the bridge 3 is arranged near the housing opening 1 facing the end of the protective wall 2.
• the bridge 3 is thus arranged deep within the protective wall 2.
• the bridge 3 is seen in the direction of penetration V arranged in the last quarter of the protective wall 2, preferably in the last tenth. Due to the low position of the bridge 3 within the protective wall 2, the bridge 3 provides good protection for the housing opening. 1 against jet water.
• the bridge 3 is arranged and designed so that jet water either can not reach the housing opening 1 directly or that only from a very small angular range can jet water directly on the
• Figure 2 shows a schematic plan view of the bridge 3 aligned with the direction of penetration V.
• the housing opening 1 is located in this view under the bridge 3.
• the bridge 3 is designed so that it covers the housing opening 1 as completely as possible.
• the protective wall 2 is arranged around the housing opening 1 and around the bridge 3.
• the protective wall 2 has two mutually opposite sections 2a, 2b, each having a circular segment-shaped
• Protective wall 2 are separated by recesses 2c.
• the Aussparrungen 2c serve to prevent a
• the cross-sectional shape of the protective wall 2 is not reduced to this shape but may take any geometric shape or combination of shapes.
• the cross-sectional shape of the protective wall 2 is not reduced to this shape but may take any geometric shape or combination of shapes.
• the cross-sectional shape of the protective wall 2 is not reduced to this shape but may take any geometric shape or combination of shapes.
• the recesses 2 c extend only over part of the length of the protective wall 2.
• FIG. 4 shows a perspective view of the housing 100 according to the second exemplary embodiment with a view of a side on which the housing opening is formed.
• FIG. 5 shows a schematic representation of the housing 100 in a perspective view.
• FIG. 6 shows a schematic

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Measuring Fluid Pressure (AREA)
• Casings For Electric Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=64664707

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Family Cites Families (19)

• 2017
  • 2017-11-30 DE DE102017128460.5A patent/DE102017128460A1/de active Pending
• 2018
  • 2018-11-30 JP JP2020529617A patent/JP7084996B2/ja active Active
  • 2018-11-30 WO PCT/EP2018/083193 patent/WO2019106169A1/de unknown
  • 2018-11-30 US US16/767,522 patent/US11274986B2/en active Active
  • 2018-11-30 EP EP18819004.5A patent/EP3718381A1/de active Pending
  • 2018-11-30 CN CN201880077396.6A patent/CN111434194B/zh active Active

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