WO1996021170A1 - Subassembly comprising an electrical unit and method of securing an electrical unit - Google Patents
Subassembly comprising an electrical unit and method of securing an electrical unit Download PDFInfo
- Publication number
- WO1996021170A1 WO1996021170A1 PCT/DE1995/001835 DE9501835W WO9621170A1 WO 1996021170 A1 WO1996021170 A1 WO 1996021170A1 DE 9501835 W DE9501835 W DE 9501835W WO 9621170 A1 WO9621170 A1 WO 9621170A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- assembly
- ribs
- receiving opening
- receiving
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4245—Mounting of the opto-electronic elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4248—Feed-through connections for the hermetical passage of fibres through a package wall
Definitions
- the invention lies in the field of electrical and electronic assemblies with electrical units, in particular electro-optical or optoelectronic coupling units, which are each fixed centrally in a receiving opening adapted to their peripheral geometry.
- electrical units in particular electro-optical or optoelectronic coupling units, which are each fixed centrally in a receiving opening adapted to their peripheral geometry.
- Such assemblies are used, for example, in optical data transmission, transmitting and receiving coupling units for optical fiber modules being held precisely and in a self-centering manner in bores in a housing wall.
- a tight connection between the outside world and the inside of the housing may be required.
- the invention relates to an assembly with an electrical unit, which is fixed centrally in a receiving opening, and a method for fixing an electrical unit in a receiving opening.
- connection sockets are made using a gauge 96/21170 PC - 7DE95 / 01835
- an optical fiber is coupled to an optoelectric assembly within an opening in a side wall of the assembly housing.
- the object of the invention is to fix a structural unit self-centering in a receiving opening, with comparatively large tolerances with regard to the dimensions of the structural unit and the receiving opening being permissible.
- a major advantage of The invention consists in that the preferably axially extending crush ribs exert radial forces on the structural unit due to their at least partially elastic deformation, which fix them centrally. This allows relatively large tolerances to be compensated for between the joining partners (unit and opening). Due to the relatively easy deformability of the ribs, in spite of large tolerances, only comparatively small differences in the press-in forces can be expected during the insertion of the assembly.
- the interstices remaining between adjacent ribs are filled with a hardenable or hardening compound.
- a tight connection between the joining partners is ensured with simple means, so that overall a tight seal of the interior of the housing from the external environment can be achieved.
- the ribs consist of an electrically conductive material or are metalized.
- a method for fixing an electrical assembly, in particular an electro-optical coupling unit, in a receiving opening, in particular in a housing wall provides according to the invention that ribs projecting radially into the receiving opening are formed and that the ribs are deformed elastically or elastoplastic when the assembly is inserted into the receiving opening, whereby the assembly is fixed.
- This method allows comparatively large tolerances between the dimensions of the joining partners.
- the axial insertion of the structural unit is ensured by the elastic or elastoplastic deformation of the ribs with an approximately constant press-in force.
- the ribs automatically center the structural unit with respect to the receiving opening and hold it sufficiently in this.
- a production-technically preferred embodiment of the method according to the invention provides that in the transition area between a housing wall having the receiving opening and an adjacent housing wall or the housing base. a receiving space is formed on the inside of the housing, that a potting compound is first introduced into the receiving space and that the housing is then pivoted such that the potting compound runs from the receiving space to the receiving opening.
- a comparatively large application space is available for the casting compound, so that the casting compound can be applied by inexperienced personnel or with a simple, relatively imprecise device.
- the potting compound then runs to the receiving opening and, when the assembly is inserted, fills in the remaining spaces between adjacent ribs. This is particularly advantageous in the case of an arrangement of the receiving opening that is difficult to access from the interior of the housing.
- the receiving space is preferably designed to be groove-shaped.
- FIGS. 2 and 3 a fixed structural unit
- Figure 4 is a plan view of the assembly according to the invention.
- the assembly comprises a housing 1, which is formed by a housing body 1 a and a housing cover 1 b.
- an end housing wall 4 On a coupling face 2, an end housing wall 4 has connecting flanges 5a, 5b, each with a receiving opening 6, 8.
- a plurality of axially extending ribs 10, 12 each protrude into the receiving openings. Due to the ribs, the receiving openings 6, 8 are narrowed in their clear width to a diameter which is smaller than the outer diameter of sleeve-like coupling bushes 14, 16 of two electrical assemblies 20, 22.
- the structural units 20, 22 are designed as electro-optical or optoelectronic coupling units of a converter assembly (electro-optical module or transceiver).
- the assemblies are shown in a position prior to axial insertion into the receiving openings.
- the Sockets 14, 16 are designed to receive optical waveguide plug pins for coupling individual optical waveguides with optoelectronic or electro-optical converters arranged in the structural units 20, 22.
- connection ends 25, 26 are indicated, which can be electrically connected to a control circuit, not shown, in the interior of the housing.
- FIG. 2 shows a section of an end view of the assembly according to FIG. 1 with the pressed-in structural unit 20.
- the ribs 10 When the structural unit 20 is pressed in, the ribs 10 are deformed elastically and / or elastoplastically, their rib peaks 10a increasing the clear width of the opening receiving opening are deformed by the sleeve 14.
- the rib peaks 10a are thereby pushed back to a common circumferential circle which corresponds to the circumferential circle of the sleeve, while the rib peaks 10a lay before the insertion of the assembly on a circumferential circle with a smaller diameter than the diameter of the sleeve 14.
- the spaces 30 between adjacent ribs 10 are filled with a potting compound 32, so that overall a tight connection is formed between the structural unit 20 and the receiving opening 6.
- FIG. 3 shows in longitudinal section the potting compound 32 in detail in the spaces between the assembly 20 and the receiving opening 6. As indicated by a broken line 34, the potting compound 32 shows a concave surface on the inside of the housing due to the applied application method, which will be explained in more detail below.
- FIGS. 3 and 4 show, in the transition area 40 between the housing wall 4 and the adjacent housing base 42 in the interior 44 of the housing two grooves 45, 46 form a receiving cavity 50 into which the casting compound 32 (not shown in FIG. 4) is added the manufacture of the assembly is first introduced.
- the receiving space 50 is from the interior 44 easily accessible, so that the potting compound can be easily applied into the receiving space 50.
- FIG. 4 omits the housing cover 1b (FIG. 1) and a circuit board arranged in the interior 44 of the housing 1 with control circuits which are connected to the connections 25, 26 of the structural units 20, 22.
- the housing 1 Before the sealing compound cures, the housing 1 is pivoted, for example by placing the housing 1 upright on the end wall 4 or on the connecting flanges 5a, 5b.
- the potting compound 32 runs from the receiving space 50 into the spaces formed between the structural units 20, 22 and the receiving openings 6, 8.
- the potting compound can harden there by itself or initiated.
- the manufacturing costs can be considerably reduced because the deformability of the crimp ribs has relatively large tolerances between the geometries of the joining partners involved (structural units 20, 22 and receiving openings) 6, 8) compensated. Despite the large tolerances, the press-in forces for inserting the structural units 20, 22 are approximately constant. As a result, housings produced in particular by injection molding can be used, so that there are considerable cost advantages compared to machined housings with machined receiving openings.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Beschreibungdescription
Baugruppe mit einer elektrischen Baueinheit und Verfahren zum Fixieren einer elektrischen BaueinheitAssembly with an electrical assembly and method for fixing an electrical assembly
Die Erfindung liegt auf dem Gebiet elektrischer und elektro¬ nischer Baugruppen mit elektrischen Baueinheiten, insbeson¬ dere elektrooptischen oder optoelektronischen Koppeleinhei¬ ten, die jeweils in einer an ihre Umfangsgeometrie angepaßten Aufnahmeöffnung zentrisch fixiert sind. Derartige Baugruppen finden beispielsweise in der optischen Datenübertragung An¬ wendung, wobei Sende- und Empfangskoppeleinheiten für Licht- ellenleiter-Module in Bohrungen einer Gehäusewand präzise und selbstzentrierend gehalten werden. Je nach Einsatzgebiet kann auch eine dichte Verbindung zwischen der Außenwelt und dem Gehäuseinneren gefordert sein.The invention lies in the field of electrical and electronic assemblies with electrical units, in particular electro-optical or optoelectronic coupling units, which are each fixed centrally in a receiving opening adapted to their peripheral geometry. Such assemblies are used, for example, in optical data transmission, transmitting and receiving coupling units for optical fiber modules being held precisely and in a self-centering manner in bores in a housing wall. Depending on the application, a tight connection between the outside world and the inside of the housing may be required.
Die Erfindung betrifft eine Baugruppe mit einer elektrischen Baueinheit, die in einer Aufnahmeöffnung zentrisch fixiert ist, und ein Verfahren zum Fixieren einer elektrischen Bau¬ einheit in einer Aufnahmeöffnung.The invention relates to an assembly with an electrical unit, which is fixed centrally in a receiving opening, and a method for fixing an electrical unit in a receiving opening.
Aus der US-PS 4,880,290 ist eine Faserdurchführung durch eine Gehäusewand bekannt, wobei ein eingegossener Fasermantel zu- mindest stückweise eine strukturierte Oberfläche hat, um ein mit zunehmender Anzahl von Temperaturzyklen auftretendes ra¬ diales Schrumpfen des Fasermantels und die damit verbundene Lockerung im Vergußmittel zu verhindern.From US Pat. No. 4,880,290 a fiber feedthrough through a housing wall is known, wherein a cast-in fiber jacket has at least in part a structured surface in order to prevent a radial shrinkage of the fiber jacket which occurs with increasing number of temperature cycles and the associated loosening in the casting compound .
Bei einer bekannten (US-PS 4,792,204) Baugruppe sind zwei optische Baugruppen in U-förmigen Ausnehmungen einer Gehäuse¬ wand parallel und beabstandet zueinander angeordnet. Jede Baugruppe hat eine flanschartige, von einer weichen Material- Schicht umgebene Anschlußbuchse z.B. für einen Lichtwellen- leiterstecker. Zur Vermeidung toleranzbedingter Abstandsab¬ weichungen werden die Anschlußbuchsen in mittels einer Lehre 96/21170 PC--7DE95/01835In a known (US Pat. No. 4,792,204) assembly, two optical assemblies are arranged in U-shaped recesses in a housing wall in parallel and at a distance from one another. Each module has a flange-like connection socket surrounded by a soft material layer, for example for an optical fiber connector. To avoid tolerance-related distance deviations, the connection sockets are made using a gauge 96/21170 PC - 7DE95 / 01835
2 präzise vorgegebenem Abstand von der offenen Seite her in die U-förmigen Ausnehmungen eingepreßt. Dabei schneiden sich vertikale Rippen aus einem relativ harten Material, die an den seitlichen Wänden der Ausnehmungen ausgebildet sind, in die vergleichsweise weiche Materialschicht.2 precisely specified distance from the open side pressed into the U-shaped recesses. Vertical ribs made of a relatively hard material, which are formed on the side walls of the recesses, cut into the comparatively soft material layer.
Bei einer aus der EP-A2-0 596 613 bekannten Baugruppe der eingangs genannten Art erfolgt eine Kopplung einer optischen Faser mit einer optoelektrischen Baueinheit innerhalb einer Öffnung in einer Seitenwand des Baugruppengehäuses.In an assembly of the type mentioned at the outset in EP-A2-0 596 613, an optical fiber is coupled to an optoelectric assembly within an opening in a side wall of the assembly housing.
Die Aufgabe der Erfindung besteht darin, eine Baueinheit in einer Aufnahmeöffnung selbstzentrierend zu fixieren, wobei vergleichsweise große Toleranzen bezüglich der Abmessungen der Baueinheit und der Aufnahmeöffnung zulässig sind.The object of the invention is to fix a structural unit self-centering in a receiving opening, with comparatively large tolerances with regard to the dimensions of the structural unit and the receiving opening being permissible.
Diese Aufgabe wird erfindungsgemäß bei einer Baugruppe der eingangs genannten Art dadurch gelöst, daß mehrere Rippen ra¬ dial in die Aufnahmeöffnung hineinragen und daß die Rippen sich beim axialen Einführen der Baueinheit elastisch oder elastoplastisch verformen und dadurch die Baueinheit fixie¬ ren. Ein wesentlicher Vorteil der Erfindung besteht darin, daß die vorzugsweise axial verlaufenden Quetschrippen durch ihre zumindest teilelastische Verformung Radialkräfte auf die Baueinheit ausüben, die diese zentrisch fixieren. Dadurch können relativ große Toleranzen zwischen den Fügepartnern (Baueinheit und Aufnahmeöffnung) ausgeglichen werden. Durch eine relativ leichte Verformbarkeit der Rippen sind trotz großer Toleranzen nur vergleichsweise geringe Unterschiede bei den Einpreßkräften während des Einführens der Baueinheit zu erwarten. Ferner wird vorteilhaf erweise bei großen Tole¬ ranzen eine übermäßig hohe Materialbelastung der Fügepartner vermieden. Dadurch ist insgesamt eine geringere Fertigungsgü¬ te der Fügepartner akzeptabel, so daß kostengünstige, unge- nauere Fertigungsverfahren anwendbar sind. Insbesondere ist dadurch eine Herstellung eines Gehäuses mit der Aufnahmeöff- nung im Spritzgußverfahren unter großen Kosteneinsparungen gegenüber einer spanenden Gehäusefertigung möglich.This object is achieved according to the invention in an assembly of the type mentioned at the outset in that a plurality of ribs project radially into the receiving opening and in that the ribs deform elastically or elastoplastically during the axial insertion of the assembly and thereby fix the assembly. A major advantage of The invention consists in that the preferably axially extending crush ribs exert radial forces on the structural unit due to their at least partially elastic deformation, which fix them centrally. This allows relatively large tolerances to be compensated for between the joining partners (unit and opening). Due to the relatively easy deformability of the ribs, in spite of large tolerances, only comparatively small differences in the press-in forces can be expected during the insertion of the assembly. Furthermore, an excessively high material load on the joining partners is advantageously avoided in the case of large tolerances. As a result, a lower overall manufacturing quality of the joining partners is acceptable, so that inexpensive, less precise manufacturing processes can be used. In particular, this enables the production of a housing with the receiving opening. injection molding process possible at great cost savings compared to machining housing.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung sind bei eingeführter Baueinheit zwischen benachbarten Rippen ver¬ bleibende Zwischenräume mit einer aushärtbaren oder aushär¬ tenden Masse ausgefüllt. Dadurch ist mit einfachen Mitteln eine dichte Verbindung zwischen den Fügepartnern gewährlei¬ stet, so daß insgesamt ein dichter Abschluß des Gehäuseinne- ren gegenüber der äußeren Umgebung realisierbar ist.According to an advantageous embodiment of the invention, when the structural unit is inserted, the interstices remaining between adjacent ribs are filled with a hardenable or hardening compound. As a result, a tight connection between the joining partners is ensured with simple means, so that overall a tight seal of the interior of the housing from the external environment can be achieved.
Um die Baueinheit über ein leitendes Gehäuse beispielsweise zur Erdung elektrisch mit dem Gehäuse zu verbinden, sieht ei¬ ne bevorzugte Weiterbildung der Erfindung vor, daß die Rippen aus einem elektrisch leitenden Material bestehen oder metal¬ lisiert sind.In order to electrically connect the unit to the housing via a conductive housing, for example for grounding, a preferred development of the invention provides that the ribs consist of an electrically conductive material or are metalized.
Ein Verfahren zum Fixieren einer elektrischen Baueinheit, insbesondere einer elektrooptischen Koppeleinheit, in einer Aufnahmeöffnung, insbesondere in einer Gehäusewand, sieht er¬ findungsgemäß vor, daß radial in die Aufnahmeöffnung ragende Rippen ausgebildet werden und daß die Rippen elastisch oder elastoplastisch verformt werden, wenn die Baueinheit in die Aufnahmeöffnung eingeführt wird, wodurch die Baueinheit fi- xiert wird. Dieses Verfahren erlaubt vergleichsweise große Toleranzen zwischen den Abmessungen der Fügepartner. Das axiale Einführen der Baueinheit ist durch die elastische oder elastoplastische Verformung der Rippen bei annähernd konstan¬ ter Einpreßkraft gewährleistet. Durch die Rippen wird die Baueinheit selbsttätig in bezug auf die Aufnahmeöffnung zen¬ triert und in dieser ausreichend festgehalten.A method for fixing an electrical assembly, in particular an electro-optical coupling unit, in a receiving opening, in particular in a housing wall, provides according to the invention that ribs projecting radially into the receiving opening are formed and that the ribs are deformed elastically or elastoplastic when the assembly is inserted into the receiving opening, whereby the assembly is fixed. This method allows comparatively large tolerances between the dimensions of the joining partners. The axial insertion of the structural unit is ensured by the elastic or elastoplastic deformation of the ribs with an approximately constant press-in force. The ribs automatically center the structural unit with respect to the receiving opening and hold it sufficiently in this.
Eine fertigungstechnisch bevorzugte Ausgestaltung des erfin- dungsge äßen Verfahrens sieht vor, daß im Obergangsbereich zwischen einer die Aufnahmeöffnung aufweisenden Gehäusewand und einer angrenzenden Gehäusewand oder dem Gehäuseboden ge- häuseinnenseitig ein Aufnahmeraum gebildet wird, daß eine Vergußmasse zunächst in den Aufnahmeraum eingebracht wird und daß das Gehäuse anschließend derart verschwenkt wird, daß die Vergußmasse aus dem Aufnahmeraum zur Aufnahmeöffnung läuft. Bei dieser Verfahrensausgestaltung steht ein vergleichsweise großer Applikationsraum für die Vergußmasse zur Verfügung, so daß die Vergußmasse von ungeübtem Personal oder mit einer einfachen relativ ungenauen Vorrichtung applizierbar ist. Durch das Verschwenken des Gehäuses läuft die Vergußmasse an- schließend zur Aufnahmeöffnung und füllt bei eingeführter Baugruppe zwischen benachbarten Rippen verbleibende Zwi¬ schenräume aus. Dies ist insbesondere bei einer von dem Ge¬ häuseinnenraum schwer zugänglichen Anordnung der Aufnahmeöff- nung vorteilhaft. Bevorzugt wird der Aufnahmeraum nutför ig ausgebildet.A production-technically preferred embodiment of the method according to the invention provides that in the transition area between a housing wall having the receiving opening and an adjacent housing wall or the housing base. a receiving space is formed on the inside of the housing, that a potting compound is first introduced into the receiving space and that the housing is then pivoted such that the potting compound runs from the receiving space to the receiving opening. In this embodiment of the method, a comparatively large application space is available for the casting compound, so that the casting compound can be applied by inexperienced personnel or with a simple, relatively imprecise device. By pivoting the housing, the potting compound then runs to the receiving opening and, when the assembly is inserted, fills in the remaining spaces between adjacent ribs. This is particularly advantageous in the case of an arrangement of the receiving opening that is difficult to access from the interior of the housing. The receiving space is preferably designed to be groove-shaped.
Die Erfindung wird nachfolgend anhand einer Zeichnung weiter erläutert; es zeigen:The invention is explained in more detail below with the aid of a drawing; show it:
Figur 1 eine erfindungsgemäße Baugruppe, Figuren 2 und 3 eine fixierte Baueinheit und1 shows an assembly according to the invention, FIGS. 2 and 3 a fixed structural unit and
Figur 4 eine Aufsicht auf die erfindungsgemäße Baugruppe.Figure 4 is a plan view of the assembly according to the invention.
Gemäß Figur 1 umfaßt die Baugruppe ein Gehäuse 1, das von ei¬ nem Gehäusekörper la und einem Gehäusedeckel lb gebildet ist. An einer Kopplungsstirnseite 2 weist eine stirnseitige Gehäu¬ sewand 4 Anschlußflansche 5a, 5b mit je einer Aufnahmeöffnung 6, 8 auf. In die Aufnahmeöffnungen ragen jeweils mehrere axial verlaufende Rippen 10, 12 hinein. Durch die Rippen wer¬ den die Aufnahmeöffnungen 6, 8 in ihrer lichten Weite auf ei- nen Durchmesser verengt, der geringer als der Außendurchmes¬ ser hülsenartiger Kopplungsbuchsen 14, 16 zweier elektischer Baueinheiten 20, 22 sind. Die Baueinheiten 20, 22 sind als elektrooptische bzw. optoelektronische Koppeleinheiten einer Wandlerbaugruppe (elektrooptisches Modul oder Transceiver) ausgebildet. Die Baueinheiten sind in einer Position vor dem axialen Einführen in die Aufnahmeöffnungen gezeigt. Die Buchsen 14, 16 sind zur Aufnahme von Lichtwellenleiter¬ steckerstiften zur Kopplung einzelner Lichtwellenleiter mit in den Baueinheiten 20, 22 angeordneten optoelektronischen bzw. elektrooptischen Wandlern ausgebildet. Von den nicht nä- her dargestellten Wandlern sind Anschlußenden 25, 26 ange¬ deutet, die mit einer nicht gezeigten Ansteuerungsschaltung im Inneren des Gehäuses elektrisch verbindbar sind.According to FIG. 1, the assembly comprises a housing 1, which is formed by a housing body 1 a and a housing cover 1 b. On a coupling face 2, an end housing wall 4 has connecting flanges 5a, 5b, each with a receiving opening 6, 8. A plurality of axially extending ribs 10, 12 each protrude into the receiving openings. Due to the ribs, the receiving openings 6, 8 are narrowed in their clear width to a diameter which is smaller than the outer diameter of sleeve-like coupling bushes 14, 16 of two electrical assemblies 20, 22. The structural units 20, 22 are designed as electro-optical or optoelectronic coupling units of a converter assembly (electro-optical module or transceiver). The assemblies are shown in a position prior to axial insertion into the receiving openings. The Sockets 14, 16 are designed to receive optical waveguide plug pins for coupling individual optical waveguides with optoelectronic or electro-optical converters arranged in the structural units 20, 22. Of the transducers not shown in detail, connection ends 25, 26 are indicated, which can be electrically connected to a control circuit, not shown, in the interior of the housing.
Figur 2 zeigt einen Ausschnitt einer stirnseitigen Ansicht der Baugruppe gemäß Figur 1 mit eingepreßter Baueinheit 20. Beim Einpressen der Baueinheit 20 werden die Rippen 10 ela¬ stisch und/oder elastoplastisch deformiert, wobei ihre Rip¬ pengipfel 10a unter Vergrößerung der lichten Weite der Auf¬ nahmeöffnung von der Hülse 14 deformiert werden. Die Rippen- gipfel 10a werden dadurch auf einen gemeinsamen Umfangskreis zurückgedrängt, der dem Umfangskreis der Hülse entspricht, während die Rippengipfel 10a vor dem Einsetzen der Baueinheit auf einem Umfangskreis mit einem geringeren Durchmesser als dem Durchmesser der Hülse 14 lagen. Die Zwischenräume 30 zwischen benachbarten Rippen 10 sind mit einer Vergußmasse 32 ausgefüllt, so daß sich insgesamt eine dichte Verbindung zwi¬ schen der Baueinheit 20 und der Aufnahmeöffnung 6 bildet.FIG. 2 shows a section of an end view of the assembly according to FIG. 1 with the pressed-in structural unit 20. When the structural unit 20 is pressed in, the ribs 10 are deformed elastically and / or elastoplastically, their rib peaks 10a increasing the clear width of the opening receiving opening are deformed by the sleeve 14. The rib peaks 10a are thereby pushed back to a common circumferential circle which corresponds to the circumferential circle of the sleeve, while the rib peaks 10a lay before the insertion of the assembly on a circumferential circle with a smaller diameter than the diameter of the sleeve 14. The spaces 30 between adjacent ribs 10 are filled with a potting compound 32, so that overall a tight connection is formed between the structural unit 20 and the receiving opening 6.
Figur 3 zeigt im Längsschnitt detailliert die Vergußmasse 32 in den Zwischenräumen zwischen der Baueinheit 20 und der Auf¬ nahmeöffnung 6. Wie eine gestrichelte Linie 34 andeutet, zeigt die Vergußmasse 32 aufgrund der angewendeten, nachfol¬ gend näher erläuterten Applikationsmethode gehäuseinnenseitig eine konkav gewölbte Oberfläche.FIG. 3 shows in longitudinal section the potting compound 32 in detail in the spaces between the assembly 20 and the receiving opening 6. As indicated by a broken line 34, the potting compound 32 shows a concave surface on the inside of the housing due to the applied application method, which will be explained in more detail below.
Wie die Figuren 3 und 4 zeigen, bilden im Obergangsbereich 40 zwischen der Gehäusewand 4 und dem angrenzenden Gehäuseboden 42 im Gehäuseinnenraum 44 zwei Nuten 45, 46 einen Aufnahme- rau 50, in den die (in Figur 4 nicht dargestellte) Verguß- masse 32 bei der Herstellung der Baugruppe zunächst einge¬ bracht wird. Der Aufnahmeraum 50 ist von dem Innenraum 44 leicht zugänglich, so daß die Vergußmasse einfach in den Auf¬ nahmeraum 50 applizierbar ist. In Figur 4 ist der Übersicht¬ lichkeit halber der Gehäusedeckel lb (Figur 1) und eine im Innenraum 44 des Gehäuses 1 angeordnete Leiterplatte mit An- Steuerschaltungen, die in Verbindung mit den Anschlüssen 25, 26 der Baueinheiten 20, 22 stehen, weggelassen.As FIGS. 3 and 4 show, in the transition area 40 between the housing wall 4 and the adjacent housing base 42 in the interior 44 of the housing two grooves 45, 46 form a receiving cavity 50 into which the casting compound 32 (not shown in FIG. 4) is added the manufacture of the assembly is first introduced. The receiving space 50 is from the interior 44 easily accessible, so that the potting compound can be easily applied into the receiving space 50. For the sake of clarity, FIG. 4 omits the housing cover 1b (FIG. 1) and a circuit board arranged in the interior 44 of the housing 1 with control circuits which are connected to the connections 25, 26 of the structural units 20, 22.
Vor dem Aushärten der Vergußmasse wird das Gehäuse 1 ver¬ schwenkt, indem beispielsweise das Gehäuse 1 hochkant auf die Stirnwand 4 bzw. auf die Anschlußflansche 5a, 5b gestellt wird. Dabei läuft die Vergußmasse 32 aus dem Aufnahmeraum 50 in die zwischen den Baueinheiten 20, 22 und den Aufnahmeöff- nungen 6, 8 gebildeten Zwischenräume. Die Vergußmasse kann dort von selbst oder initiiert aushärten.Before the sealing compound cures, the housing 1 is pivoted, for example by placing the housing 1 upright on the end wall 4 or on the connecting flanges 5a, 5b. The potting compound 32 runs from the receiving space 50 into the spaces formed between the structural units 20, 22 and the receiving openings 6, 8. The potting compound can harden there by itself or initiated.
Mit der erfindungsgemäßen Baugruppe und dem Verfahren zum Fi¬ xieren einer Baueinheit in einer Aufnahmeöffnung lassen sich die Herstellungskosten erheblich vermindern, weil die Ver¬ formbarkeit der Quetschrippen relativ große Toleranzen zwi- sehen den Geometrien der beteiligten Fügepartner (Baueinhei¬ ten 20, 22 und Aufnahmeöffnungen 6, 8) kompensiert. Trotz der großen Toleranzen sind die Einpreßkräf e zum Einführen der Baueinheiten 20, 22 annähernd konstant. Dadurch können insbe¬ sondere durch Spritzgußverfahren hergestellte Gehäuse ver- wendet werden, so daß sich gegenüber spanend gefertigten Ge¬ häusen mit spanend gebildeten Aufnahmeöffnungen erhebliche Kostenvorteile ergeben. With the assembly according to the invention and the method for fixing a structural unit in a receiving opening, the manufacturing costs can be considerably reduced because the deformability of the crimp ribs has relatively large tolerances between the geometries of the joining partners involved (structural units 20, 22 and receiving openings) 6, 8) compensated. Despite the large tolerances, the press-in forces for inserting the structural units 20, 22 are approximately constant. As a result, housings produced in particular by injection molding can be used, so that there are considerable cost advantages compared to machined housings with machined receiving openings.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19501133A DE19501133C1 (en) | 1995-01-05 | 1995-01-05 | Assembly with an electrical assembly and method for fixing an electrical assembly |
| DE19501133.3 | 1995-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996021170A1 true WO1996021170A1 (en) | 1996-07-11 |
Family
ID=7751609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1995/001835 Ceased WO1996021170A1 (en) | 1995-01-05 | 1995-12-12 | Subassembly comprising an electrical unit and method of securing an electrical unit |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19501133C1 (en) |
| WO (1) | WO1996021170A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119846783B (en) * | 2025-03-18 | 2025-06-24 | 深圳市诺可信科技股份有限公司 | A photoelectric interface structure and active optical splitter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2017963A (en) * | 1978-03-30 | 1979-10-10 | Amp Inc | Optical fibre/transducer coupling |
| EP0061243A1 (en) * | 1981-03-16 | 1982-09-29 | AMP INCORPORATED (a New Jersey corporation) | Optical waveguide connector |
| US4703508A (en) * | 1986-04-23 | 1987-10-27 | Sony Corporation | Loudspeaker terminal strip |
| US4880290A (en) * | 1986-09-19 | 1989-11-14 | Hitachi, Ltd. | Opto-electronic device and method for producing the device |
| US5231686A (en) * | 1992-07-17 | 1993-07-27 | Honeywell Inc. | Optical connector configured to facilitate active alignment of a photoelectric device with an optical fiber |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792204A (en) * | 1987-06-08 | 1988-12-20 | Siemens Aktiengesellschaft | Process and apparatus for elimination of tolerance dependent variations of a selectable spacing between components in optical communication equipment |
| JPH06204566A (en) * | 1992-10-14 | 1994-07-22 | Fujitsu Ltd | Optical fiber / optical element coupling package and optical fiber / optical element module |
-
1995
- 1995-01-05 DE DE19501133A patent/DE19501133C1/en not_active Expired - Fee Related
- 1995-12-12 WO PCT/DE1995/001835 patent/WO1996021170A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2017963A (en) * | 1978-03-30 | 1979-10-10 | Amp Inc | Optical fibre/transducer coupling |
| EP0061243A1 (en) * | 1981-03-16 | 1982-09-29 | AMP INCORPORATED (a New Jersey corporation) | Optical waveguide connector |
| US4703508A (en) * | 1986-04-23 | 1987-10-27 | Sony Corporation | Loudspeaker terminal strip |
| US4880290A (en) * | 1986-09-19 | 1989-11-14 | Hitachi, Ltd. | Opto-electronic device and method for producing the device |
| US5231686A (en) * | 1992-07-17 | 1993-07-27 | Honeywell Inc. | Optical connector configured to facilitate active alignment of a photoelectric device with an optical fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19501133C1 (en) | 1996-05-23 |
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