EP4399950A1 - Elektrische durchführung und elektronikgehäuse - Google Patents
Elektrische durchführung und elektronikgehäuseInfo
- Publication number
- EP4399950A1 EP4399950A1 EP22762010.1A EP22762010A EP4399950A1 EP 4399950 A1 EP4399950 A1 EP 4399950A1 EP 22762010 A EP22762010 A EP 22762010A EP 4399950 A1 EP4399950 A1 EP 4399950A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stop
- stop element
- hole
- elastic body
- electrical
- 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
-
- 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
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- 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
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
Definitions
- the invention relates to an electrical feedthrough and an electronics housing.
- Electronics housings are used in various industrial environments. If an electronics housing is to be used in a potentially explosive environment, the electronics housing must have a flameproof enclosure to prevent a flame or spark from escaping from the electronics housing.
- Flameproof encapsulations are particularly difficult to implement in the area of the electrical feedthrough on the housing, i.e. the electrical interface with the electronics arranged in the housing.
- electrical feedthroughs have been encapsulated in a complex manner, which is associated with expensive materials and a long drying time. The manufacturing costs and the manufacturing time of an electronics housing are thus increased.
- the electrical feedthrough comprises: a first stop element with at least one first through hole, a second stop element with at least one second through hole, an elastic body which extends between the first stop element and the second stop element along a first axis, at least one electrical contact element with a first end and a second end opposite the first end.
- the first end is movably arranged in the first through hole and/or the second end is movably arranged in the second through hole.
- the elastic body is capable of deforming when the first stopper and the second stopper are moved relative to each other.
- the first stop element and the second stop element are each suitable for being fixed to the electronics housing.
- the electrical feedthrough of the invention Based on the electrical feedthrough of the invention is made possible to provide an electrical feedthrough for an electronics housing, which even at high Temperature fluctuations, which cause material contraction, securely seal the electronics housing at its electrical interface to the outside.
- the electrical feedthrough according to the invention enables simple and convenient installation in an electronics housing.
- the first through hole of the first stop element has a taper with a first hole diameter and the first end of the electrical contact element has a taper with a first diameter.
- the first hole diameter and the first diameter are the same and/or the second through hole of the second stop element has a taper with a second hole diameter and the second end of the electrical contact element has a taper with a second diameter.
- the second hole diameter and the second diameter are the same.
- the first stop element extends transversely to the first axis and the second stop element extends transversely to the first axis.
- the second stop element comprises a first fastening unit with an adhesive surface, a welding surface, a thread and screw, a groove and a snap ring, or a hole and a rivet.
- the elastic body extends longitudinally to the first axis and has an at least partially conical cross-sectional shape.
- the elastic body is made of elastomer.
- the electronics housing according to the invention comprises: an electrical feedthrough according to the invention, a housing body.
- the second attachment area includes an adhesive surface, a weld surface, a thread, a groove for a snap ring or a hole for a rivet and the second stop element includes a first attachment unit with an adhesive surface, a weld surface, a thread and screw, a Nut and snap ring, or hole and rivet.
- connection channel extends along a second axis and the first attachment area and the second attachment area are spaced apart by a first distance along the second axis.
- the first stop member and the second stop member of the electrical feedthrough are spaced along the first axis by a second distance. The first distance is less than the second distance.
- the electrical contact element has a first stop on the taper at its first end and the first stop element has a second stop on the first through hole, and/or the electrical contact element has a third stop on the taper at its second end and the second stopper has a fourth stopper at the second through hole, so that when the first attachment portion is fixed to the first stopper and when the second attachment portion is fixed to the second stopper, the first stopper is in contact with the second stopper and/or the third stop is in contact with the fourth stop.
- Fig. 2 the electrical bushing from Figure 1, which is fixed in the electronics housing
- Fig. 3 a sectional drawing of the electrical feedthrough with electronics housing shown in Figure 1
- Fig.4 an enlarged view of two sections of Figure 3.
- Figure 1 shows an electronics housing 10 according to the invention with a housing body 11 and an electrical feedthrough 20.
- the electrical bushing 20 comprises a first stop element 21, a second stop element 23, an elastic body 25 and an electrical contact element 26.
- the first stop element 21 has at least one first through hole 22 .
- the first through hole 22 is suitable for receiving an electrical contact element 26 .
- the first stop element 21 has three through holes in order to accommodate an electrical contact element in each through hole.
- the first stop element 21 is suitable for being fixed on the electronics housing 10 .
- the second stop element 23 has at least one second through hole 24 .
- the second through hole 24 is suitable for receiving an electrical contact element 26 .
- the second stop element 23 has three through holes in order to accommodate an electrical contact element in each through hole.
- the second stop element 23 is suitable for being fixed on the electronics housing 10 .
- the second stop element 23 has a first fastening unit 29 .
- the first fastening unit 29 is, for example, an adhesive surface, a welded surface, a thread with a screw, a groove with a snap ring, or a hole with a rivet.
- the first stop member 21 and the second stop member 23 are made of an electrically insulating material, for example plastic.
- the first stop element 21 preferably extends transversely to the first axis A1 and the second stop element 23 preferably extends transversely to the first axis A1.
- the elastic body 25 is arranged to extend between the first stopper 21 and the second stopper 23 along a first axis A1.
- the first stop element 21 and the second stop element 23 thus delimit the elastic body 25.
- the elastic body 25 has a first height H1 along the first axis A1.
- the elastic body 25 has an outer wall 30 .
- the elastic body 25 is capable of deforming when the first Stop element 21 and the second stop element 23 are moved relative to each other.
- the elastic body 25 has at least one through opening in which the at least one electrical contact element 26 is located.
- the elastic body 25 is arranged to be movable relative to the electrical contact element 26 .
- the elastic body 25 preferably has an at least partially conical cross-sectional shape along the first axis A1.
- the conical cross-sectional shape enables the electrical feedthrough 20 to be inserted securely and conveniently into the electronics housing 10.
- a conical cross-sectional shape when the tip of the cone is directed outwards, allows the cone to wedge in the connection channel 12 in the event of excess pressure in the electronics housing 10. So the connection channel 12 seals.
- the elastic body 25 may have other shapes, such as a cylindrical shape.
- the elastic body 25 is made of elastomer, for example, or includes an elastomer.
- the elastic body 25 can also be made of other elastic materials, provided that the elasticity of the elastic body 25 enables a deformation of the elastic body 25 in such a way that a bead can be formed when the first stop element 21 and the second stop element 23 are pressed together (see Figure 2).
- the electrical contact element 26 has a first end 27 and a second end 28 opposite the first end 27 .
- the first end 27 is arranged in the first through hole 22 and the second end 28 is arranged in the second through hole 24 .
- the electrical contact element 26 is made of an electrically conductive material.
- the electrical contact element 26 is made of copper, silver, gold, or has a coating of silver, gold, or platinum.
- FIG. 4 shows two marked excerpts from FIG. 3 in an enlarged representation.
- the first through hole 22 of the first stop element 21 has a taper with a first hole diameter L1 and the first end 27 of the electrical contact element 26 has a taper with a first diameter D1.
- the first hole diameter L1 and the first diameter D1 are substantially the same. “Equal” is to be understood here as meaning that the electrical contact element can just about be inserted into the stop element.
- the second through hole 24 of the second stop element 23 has a taper with a second hole diameter L2 and the second end 28 of the electrical contact element 26 has a taper with a second diameter D2.
- the second hole diameter L2 and the second diameter D2 are the same.
- the first end 27 of the electrical contact element 26 is mounted in the first through hole 22 so that it can move along the first axis A1 and/or the second end 28 is mounted in the second through hole 24 so that it can move along the first axis A1. What is thus achieved is that the electrical contact element 26 makes it easier for the first stop element 21 and the second stop element 23 to be pressed together.
- FIG. 1 to FIG. 3 show the housing body 11, which has a connection channel 12 for receiving the electrical bushing 20.
- the connection channel 12 has an inner wall 13 which is partially complementary to the outer wall 30 of the elastic body 25 .
- connection channel 12 has a cavity 14 which is arranged in such a way that when the first stop element 21 and the second stop element 23 are moved relative to one another, the elastic body 25 can be deformed into the cavity 14 .
- connection channel 12 preferably extends around the first axis A1, so that the cavity 14 extends concentrically around the elastic body 25 when this is arranged in the connection channel 12.
- the connecting channel 12 has a first fastening area 15 which is suitable for being fixed on the first stop element 21 .
- the shoulder 15 is preferably a shoulder which fixes the first stop member 21 so that the first stop member 21 is fixed in a direction along the first axis A1.
- the first stop element 21 is held in the connection channel 12 in this way. Replacing the electrical bushing 20 is thus easily possible.
- the shoulder can also extend obliquely to the longitudinal axis A1, ie have a conical shape. A conical shape of the shoulder allows the first abutment element 21 and the shoulder to be wedged.
- the first fastening area 15 is glued to the connection channel 12, welded, for example ultrasonically welded, or connected by means of a mechanical unit, for example a clamping ring.
- the housing body 11 has a second attachment portion 16 which is adapted to be connected to the second stop member 23 such that when the first attachment portion 15 is connected to the first stop member 21 and the second attachment portion 16 is connected to the second stop member 23 , the elastic body 25 is deformed into the cavity 14 .
- the second fastening area 16 comprises an adhesive surface, a welding surface, a thread, a groove for a snap ring or a hole for a rivet.
- connection channel 12 extends along a second axis A2.
- the first attachment area 15 and the second attachment area 16 are spaced apart along the second axis A2 by a first distance B1.
- the first stop member 21 and the second stop member 23 of the electrical feedthrough 20 are spaced apart along the first axis A1 by a second distance B2.
- the first distance B1 is less than the second distance B2.
- the electrical contact element 26 has a first stop 31 on the taper at its first end 27 and the first stop element 21 has a second stop 32 on the first through-hole 22 .
- the electrical contact element 26 has a third stop 33 on the taper at its second end 28 and the second stop element 23 has a fourth stop 34 on the second through-hole 24 . This means that when the first fastening area 15 is fixed to the first stop element 21 and when the second fastening area 16 is fixed to the second stop element 23, the first stop 31 is in contact with the second stop 32 and/or the third stop 33 is in contact with the fourth stop 34 is in contact.
- the mounting of the electronics housing 10, ie the mounting of the electrical feedthrough 20 in the housing body 11, is described below.
- the electrical bushing 20 is inserted into the connection channel 12 of the housing body 11 and the first stop element 21 is fixed to the first fastening area 15 .
- the fixing is, for example, pressing, gluing or welding the first stop element 21 to the first fastening area 15, for example a shoulder.
- the first stop element 21 can also be fixed to the first fastening area 15 in some other way, for example with the aid of a clamping ring.
- the second stop element 23 is pressed along the first axis A1 in the direction of the first stop element 21 so that the elastic body 25 is deformed and forms a bead which extends into the cavity 14 of the connection channel 12 .
- the elastic body 25 has a second height H2, which is less than the first height H1 (see Figure 2).
- the second stopper 23 is fixed to the second attachment portion 16 of the case body 11 . Fixing is, for example, gluing, screwing, riveting or welding the second stop element 23 to the second fastening area 16.
- the second stop element 23 can also be fixed to the second fastening area 16 in some other way, for example using a clamping ring.
- the electrical bushing 20 enables optimal sealing of the connection channel 12 even with temperature fluctuations. If, for example, the elastic body 25 contracts at low temperatures, the bulge is reduced somewhat and there is still a first gap zone Z1 and a second gap zone Z2 is kept to a minimum, or is avoided (see Figure 2).
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Installation Of Indoor Wiring (AREA)
- Measuring Fluid Pressure (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021122931.6A DE102021122931A1 (de) | 2021-09-06 | 2021-09-06 | Elektrische Durchführung und Elektronikgehäuse |
| PCT/EP2022/072052 WO2023030823A1 (de) | 2021-09-06 | 2022-08-05 | Elektrische durchführung und elektronikgehäuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4399950A1 true EP4399950A1 (de) | 2024-07-17 |
Family
ID=83151678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22762010.1A Pending EP4399950A1 (de) | 2021-09-06 | 2022-08-05 | Elektrische durchführung und elektronikgehäuse |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12414249B2 (de) |
| EP (1) | EP4399950A1 (de) |
| CN (1) | CN117917198A (de) |
| DE (1) | DE102021122931A1 (de) |
| WO (1) | WO2023030823A1 (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2361215A (en) | 1942-03-12 | 1944-10-24 | Westinghouse Electric & Mfg Co | Sealed cable entrance |
| US3744008A (en) | 1971-11-23 | 1973-07-03 | Thomas & Betts Corp | Strain relief assembly |
| US6180882B1 (en) | 1999-01-19 | 2001-01-30 | Thomas & Betts, International | Single and dual cable seal system |
| JP2008028267A (ja) | 2006-07-24 | 2008-02-07 | Fanuc Ltd | 電気回路ユニットのシール構造 |
| FR2915326B1 (fr) * | 2007-04-17 | 2009-05-29 | E2V Semiconductors Soc Par Act | Procede de fixation de cable a un boitier de circuit electronique |
| DE102012105113A1 (de) | 2012-06-13 | 2013-12-19 | R. Stahl Schaltgeräte GmbH | Durchführungsvorrichtung für ein explosionsgeschütztes Gehäuse |
| WO2016109425A1 (en) * | 2014-12-29 | 2016-07-07 | Commscope Technologies Llc | Telecommunications enclosure with cable seal |
| DE202015102280U1 (de) * | 2015-05-05 | 2016-05-10 | Conta-Clip Verbindungstechnik Gmbh | Anordnung mit einer Wanddurchführung für mehrere Kabel und Bausatz |
| US10320168B2 (en) * | 2017-09-26 | 2019-06-11 | Cree, Inc. | Cord grip with liquid drain |
| DE102017129923A1 (de) | 2017-11-24 | 2019-05-29 | Harting Electric Gmbh & Co. Kg | Kabeldurchführung |
| CN110445085A (zh) | 2019-09-17 | 2019-11-12 | 北京国电环网电气科技有限公司 | 一种电缆接口密封机构及水下电力变压器 |
| KR102316505B1 (ko) * | 2020-05-28 | 2021-10-22 | 한국전력기술 주식회사 | 스마트계기 전자 하우징의 삼중화 기밀 장치 |
-
2021
- 2021-09-06 DE DE102021122931.6A patent/DE102021122931A1/de active Pending
-
2022
- 2022-08-05 WO PCT/EP2022/072052 patent/WO2023030823A1/de not_active Ceased
- 2022-08-05 CN CN202280060215.5A patent/CN117917198A/zh active Pending
- 2022-08-05 US US18/689,173 patent/US12414249B2/en active Active
- 2022-08-05 EP EP22762010.1A patent/EP4399950A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023030823A1 (de) | 2023-03-09 |
| CN117917198A (zh) | 2024-04-19 |
| US12414249B2 (en) | 2025-09-09 |
| DE102021122931A1 (de) | 2023-03-09 |
| US20240389252A1 (en) | 2024-11-21 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20240228 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ENDRESS+HAUSER FLOWTEC AG |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |