DE202010017072U1

DE202010017072U1 - Device for holding a component on a printed circuit board

Info

Publication number: DE202010017072U1
Application number: DE202010017072U
Authority: DE
Original assignee: Ebm Papst St Georgen GmbH and Co KG
Current assignee: Ebm Papst St Georgen GmbH and Co KG
Priority date: 2010-02-04
Filing date: 2010-12-24
Publication date: 2011-06-09
Anticipated expiration: 2020-12-25

Abstract

Vorrichtung zum Halten eines elektrischen Bauteils (20) an einer Leiterplatte (22), welche Vorrichtung aufweist: Ein Basisteil (42) zur Befestigung auf der Leiterplatte (22); ein Deckelteil (44), welches über mindestens ein Verbindungsglied (46, 48) mit dem Basisteil (42) verbindbar ist, wobei Basisteil und Deckelteil zwischen sich eine Ausnehmung (50, 74) definieren, die zum Fixieren des elektrischen Bauteils (20) ausgebildet ist; eine dieser Ausnehmung (50, 74) zugeordnete Federanordnung (76, 78), welche auf das in der Vorrichtung fixierte elektrische Bauteil (20) wirkt, um es in nachgiebiger Weise festzuhalten; ein Gehäuse, welches ein Gehäuse-Basisteil (86) und ein Gehäuse-Deckelteil (92) aufweist, welche aneinander befestigbar sind; wobei das Gehäuse-Deckelteil (92) zur Anlage gegen das Deckelteil (44) der Haltevorrichtung ausgebildet ist, um es in Richtung zum Basisteil (42) der Haltevorrichtung zu beaufschlagen, wenn das Gehäuse-Deckelteil (92) am Gehäuse-Basisteil (86) befestigt ist.Device for holding an electrical component (20) on a printed circuit board (22), the device comprising: a base part (42) for fastening on the printed circuit board (22); a cover part (44) which can be connected to the base part (42) via at least one connecting member (46, 48), the base part and cover part defining between them a recess (50, 74) which is designed to fix the electrical component (20) is; a spring arrangement (76, 78) associated with this recess (50, 74), which acts on the electrical component (20) fixed in the device in order to hold it in a flexible manner; a housing having a housing base part (86) and a housing cover part (92) which can be fastened to one another; wherein the housing cover part (92) is designed to bear against the cover part (44) of the holding device in order to urge it towards the base part (42) of the holding device when the housing cover part (92) on the housing base part (86) is attached.

Description

Die Erfindung betrifft eine Vorrichtung zum Halten eines Bauteils auf einer Leiterplatte.The invention relates to a device for holding a component on a printed circuit board.

Wenn Bauteile der Leistungselektronik, z. B. Drosseln oder größere Kondensatoren, auf einer Leiterplatte befestigt werden müssen, ergeben sich Schwierigkeiten, weil solche Bauteile groß sind und deshalb häufig von Hand an den Leiterbahnen einer Leiterplatte angelötet werden müssen. Dies macht es z. B. notwendig, die Leiterplatte kurzzeitig in eine für das Löten des Bauteils günstige Position zu bringen, ohne dass dabei das Bauteil herunterfallen kann.If components of the power electronics, eg. As chokes or larger capacitors must be mounted on a circuit board, difficulties arise because such components are large and therefore often have to be soldered by hand to the tracks of a circuit board. This makes it z. B. necessary to bring the circuit board for a short time in a favorable position for the soldering of the component, without causing the component can fall down.

Es ist deshalb eine Aufgabe der Erfindung, eine Vorrichtung der genannten Art zu schaffen.It is therefore an object of the invention to provide a device of the type mentioned.

Nach der Erfindung wird diese Aufgabe gelöst durch den Gegenstand der selbständigen Ansprüche 1, 15, 25, 29, 33, 38 und 40. Mittels der Haltevorrichtung kann das elektronische Bauteil mechanisch an der Leiterplatte befestigt werden, aber so, dass noch kleinere Änderungen der Dicke, kleinere axiale Verschiebungen etc. möglich sind. Anschließend wird dann das Bauteil durch Einbetten in ein Gehäuse vollends sicher befestigt.According to the invention, this object is achieved by the subject matter of independent claims 1, 15, 25, 29, 33, 38 and 40. By means of the holding device, the electronic component can be mechanically attached to the circuit board, but so that even smaller changes in thickness , smaller axial displacements etc. are possible. Then, the component is securely fixed by embedding in a housing.

Dabei muss bedacht werden, dass solche Bauteile der Leistungselektronik relativ große Toleranzen haben. Z. B. benötigt man in Elektromotoren mit Betriebselektronik sogenannte Zwischenkreiskondensatoren. Diese haben einen Nenndurchmesser von z. B. 18 mm mit einer zulässigen Abweichung von 18 plus 0,5 mm, und eine Länge von 40 mm bei einer zulässigen Abweichung von 40 plus 2 mm. Durch die Erwärmung im Betrieb können sich die Abmessungen ändern, was ebenfalls berücksichtigt werden muss, damit die Bauteile durch solche Formänderungen nicht beschädigt werden können. Man erhält so einen Schutz des betreffenden Bauteils, z. B. gegen Stöße und dgl., und einen Ausgleich von Systemtoleranzen, wenn das Bauteil eingebaut ist.It must be remembered that such components of the power electronics have relatively large tolerances. For example, in electric motors with operating electronics so-called DC link capacitors are required. These have a nominal diameter of z. B. 18 mm with a permissible deviation of 18 plus 0.5 mm, and a length of 40 mm with a permissible deviation of 40 plus 2 mm. Due to the heating in operation, the dimensions may change, which must also be taken into account, so that the components can not be damaged by such changes in shape. This gives a protection of the relevant component, for. B. against shocks and the like., And a compensation of system tolerances when the component is installed.

Weitere Einzelheiten und vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den im folgenden beschriebenen und in der Zeichnung dargestellten, in keiner Weise als Einschränkung der Erfindung zu verstehenden Ausführungsbeispielen, sowie aus den Unteransprüchen.Further details and advantageous developments of the invention will become apparent from the following described and illustrated in the drawings, in no way as a limitation of the invention to be understood embodiments, and from the dependent claims.

Es zeigt:It shows:

1 eine Explosionsdarstellung einer Leiterplatte, auf deren Oberseite elektronische Bauelemente dargestellt sind und auf deren Unterseite Anschlussstecker vorgesehen sind, z. B. für einen Steuerbus (CAN In, CAN Out), einen Leistungsanschluss für die Zwischenkreisspannung, also eine Gleichspannung, und diverse Steuerleitungen, 1 an exploded view of a circuit board, on top of which electronic components are shown and on the underside connector plugs are provided, for. B. for a control bus (CAN In, CAN Out), a power connection for the intermediate circuit voltage, ie a DC voltage, and various control lines,

2 eine Darstellung eines bei 1 verwendeten Kondensators 20, etwa in 3,6 facher Vergrößerung, 2 a representation of a 1 used capacitor 20 , about in 3.6 times magnification,

3 eine Darstellung analog 1, aber im Anschluss an einen Teil des Montagevorgangs, 3 a representation analog 1 but following part of the assembly process,

4 eine Darstellung, bei der der Zwischenkreiskondensator 20 an einem vorderen Eck einer Leiterplatte 22 montiert ist, 4 a representation in which the intermediate circuit capacitor 20 at a front corner of a printed circuit board 22 is mounted,

5 einen Deckel für die in den 1 bis 4 dargestellte Haltevorrichtung, 5 a lid for in the 1 to 4 illustrated holding device,

6 eine Draufsicht von oben auf das Deckelteil, gesehen in Richtung des Pfeiles VI der 5, 6 a top view from above on the lid part, seen in the direction of arrow VI of 5 .

7 eine Seitenansicht des Deckelteils der 5 und 6, gesehen in Richtung des Pfeiles VII der 6, 7 a side view of the cover part of 5 and 6 , seen in the direction of the arrow VII of the 6 .

8 eine perspektivische Darstellung eines bei 3 verwendeten Basisteils, 8th a perspective view of a 3 used base part,

9 eine Draufsicht von oben auf das Basisteil, gesehen in Richtung des Pfeiles IX der 8, 9 a top view from above of the base part, seen in the direction of arrow IX of 8th .

10 eine Seitenansicht des in 9 dargestellten Basisteils, gesehen in Richtung des Pfeiles X der 9, 10 a side view of the in 9 shown base part, seen in the direction of arrow X of the 9 .

11 eine Seitenansicht des Basisteils, gesehen in Richtung des Pfeiles XI der 8, 11 a side view of the base part, seen in the direction of arrow XI the 8th .

12 einen Schnitt, gesehen in Richtung der Linie XII-XII der 15, wobei das elektrische Bauteil 20 montiert ist, 12 a section, seen in the direction of the line XII-XII the 15 , wherein the electrical component 20 is mounted,

13 einen Schnitt, ebenfalls gesehen in Richtung der Linie XII-XII der 15, aber in einem Zustand, in dem das elektrische Bauteil 20 voll befestigt ist, 13 a section, also seen in the direction of the line XII-XII the 15 but in a state in which the electrical component 20 is fully attached,

14 einen Schnitt, gesehen in Richtung der Linie XIV-XIV der 15, wobei das elektrische Bauteil 20 voll befestigt ist, 14 a section, seen in the direction of the line XIV-XIV the 15 , wherein the electrical component 20 is fully attached,

15 einen Schnitt, gesehen längs der Linie XV-XV der 14, und 15 a section, seen along the line XV-XV of the 14 , and

16 ein beispielhaftes Schaltbild zur Erläuterung der Verwendung. 16 an exemplary circuit diagram for explaining the use.

1 zeigt als Beispiel die Explosionsdarstellung der Elektronik eines (nicht dargestellten) Elektromotors, hier eines PMSM (permanentmagnetisch erregten Sinusmotors). Solche Motoren werden unter anderem für Transportaufgaben verwendet, z. B. für den Antrieb von Maschinen, Förderbändern oder dgl. Die Leistung eines solchen Motors liegt typisch zwischen 0,05 und 2 kW. 1 shows as an example the exploded view of the electronics of an electric motor (not shown), in this case a PMSM (permanently magnetically excited sinusoidal motor). Such engines are used inter alia for transport tasks, eg. B. for driving machinery, conveyor belts or the like. The power of such an engine is typically between 0.05 and 2 kW.

Die Befestigung von großen Bauteilen stellt besondere Anforderungen, da sie, z. B. durch Erwärmung, gewissen Formänderungen unterliegen und da sie im Betrieb höhere Betriebstemperaturen annehmen können.The attachment of large components makes special demands, since they, for. B. by heating, subject to certain changes in shape and because they can assume higher operating temperatures during operation.

1 zeigt eine Leiterplatte 22, auf der sich diverse elektronische Bauelemente 24 befinden, u. a. eine Dreiphasen-Vollbrücke 26, vgl. 3, Widerstände, kleinere Kondensatoren, etc. sowie die Ansteuerelektronik für die Vollbrücke 26, gewöhnlich in Form eines Mikroprozessors 30. 1 shows a circuit board 22 on which are various electronic components 24 including a three-phase full bridge 26 , see. 3 , Resistors, smaller capacitors, etc. as well as the control electronics for the full bridge 26 usually in the form of a microprocessor 30 ,

Unten an der Leiterplatte 22 befinden sich Anschlussstecker 34, z. B. für die Energiezufuhr und für die Steuerung des Motors, wofür verschiedene Steuerungsarten bekannt sind.At the bottom of the circuit board 22 there are connection plugs 34 , z. As for the power supply and for the control of the engine, for which various types of control are known.

Bei den hier verwendeten Leistungen fließt im Betrieb ständig ein sog. Rippelstrom zwischen dem Motor und dem Kondensator 20, was zu einer entsprechenden Erwärmung des Kondensators 20 führt.During operation, a so-called ripple current constantly flows between the motor and the capacitor during operation 20 , resulting in a corresponding heating of the capacitor 20 leads.

2 zeigt schematisch einen solchen Kondensator 20. Dieser hat zwei Anschlussleitungen 38. Er hat z. B. einen Außendurchmesser D von 18 + 0,5 mm und eine Länge L von 40 + 2 mm, d. h. Durchmesser und Länge können in relativ weiten Grenzen schwanken. 2 schematically shows such a capacitor 20 , This has two connecting cables 38 , He has z. B. an outer diameter D of 18 + 0.5 mm and a length L of 40 + 2 mm, ie diameter and length can vary within relatively wide limits.

Die Leitungen 38 müssen von Hand an entsprechende Leiter der Leiterplatte 22 angelötet werden, wie in 15 schematisch dargestellt. Dazu muss der Kondensator 20 an der Leiterplatte 22 vorläufig mechanisch fixiert werden, damit die Leiterplatte 22 in die gewünschte Arbeitsposition gedreht werden kann.The wires 38 need to be manually connected to appropriate conductors of the circuit board 22 be soldered as in 15 shown schematically. This requires the capacitor 20 on the circuit board 22 temporarily mechanically fixed so that the circuit board 22 can be turned into the desired working position.

Hierzu dient ein isolierendes Halteteil 40. Es hat ein Basisteil 42, das auf der Leiterplatte 22 montiert wird, und ein oberes Teil (Deckelteil) 44, das hier durch zwei seitliche Laschen 46, 48 mit dem Basisteil 42 verbunden werden kann.For this purpose, an insulating holding member is used 40 , It has a base part 42 that on the circuit board 22 is mounted, and an upper part (cover part) 44 , here by two side tabs 46 . 48 with the base part 42 can be connected.

Form und Aufbau des Basisteils 42 gehen aus den 1, 3 und 8 bis 11 hervor. Auf seiner Oberseite hat es eine Vertiefung 50, die an die Form des Bauteils 20 angepasst ist, hier in Form einer Mulde. Links von der Mulde 50 befindet sich in 8 ein Vorsprung mit einer Rastöffnung 52, rechts ein Vorsprung mit einer Rastöffnung 54. An dem in 8 vorderen Ende der Mulde 50 befindet sich ein Anschlag 56, dessen Funktion aus 15 hervor geht. Die Rastöffnungen 52, 54 setzen sich nach unten jeweils in Form eines Kanals 52' bzw. 54' fort.Shape and construction of the base part 42 go out of the 1 . 3 and 8th to 11 out. On its top it has a recess 50 that conform to the shape of the component 20 adapted, here in the form of a hollow. Left of the trough 50 is located in 8th a projection with a detent opening 52 , right a projection with a detent opening 54 , At the in 8th front end of the trough 50 there is a stop 56 whose function is off 15 comes out. The detent openings 52 . 54 sit down each in the form of a channel 52 ' respectively. 54 ' continued.

Die Mulde 50 ist von zwei Öffnungen 58, 60 durchbrochen, an die sich nach unten hin je ein Rastglied 62 bzw. 64 anschließt. Die Ausnehmung 60 liegt in 9 auf der Mittellinie 66 des Teils 42, und die Ausnehmung 58 ist in 9 relativ zur Mittellinie 66 etwas nach links versetzt. Wie 9 und 10 zeigen, weisen die Rasthaken der Rastglieder 62, 64 von einander weg. Sie sind jeweils am freien Ende mit einer Abschrägung 62' bzw. 64' versehen, um das Einrasten und auch eine Demontage zu erleichtern.The hollow 50 is from two openings 58 . 60 broken through, to each down a latching member 62 respectively. 64 followed. The recess 60 located in 9 on the middle line 66 of the part 42 , and the recess 58 is in 9 relative to the midline 66 put something to the left. As 9 and 10 show, the locking hooks of the locking members 62 . 64 away from each other. They are each at the free end with a bevel 62 ' respectively. 64 ' provided to facilitate engagement and disassembly.

Die Rastglieder 62, 64 dienen zum Einrasten in zwei zugeordnete Löcher 66, 68 bzw. 66', 68' der Leiterplatte 22, die in 3 gut sichtbar dargestellt sind. Wie man sieht, ermöglicht die Leiterplatte 22 in dieser Form die Montage von zwei Kondensatoren 20, also von zusammen 3000 μF, wie das für größere Motoren erforderlich ist.The locking members 62 . 64 serve to snap into two associated holes 66 . 68 respectively. 66 ' . 68 ' the circuit board 22 , in the 3 are shown clearly visible. As you can see, the PCB allows 22 in this form the assembly of two capacitors 20 that is 3000 μF, as required for larger engines.

Bei der Montage wird das Basisteil 42, z. B. durch einen Roboter oder von Hand, in der richtigen Lage auf die Leiterplatte 22 aufgesetzt, und dann bringt man durch Druck von oben die Rasthaken 62, 64 zum Einrasten in den Öffnungen 66, 68 (bzw. 66', 68'), wie in 15 dargestellt.During assembly, the base part 42 , z. B. by a robot or by hand, in the correct position on the circuit board 22 put on, and then you bring by pressure from above the locking hooks 62 . 64 for locking in the openings 66 . 68 (respectively. 66 ' . 68 ' ), as in 15 shown.

Das Teil 44 ist in den 1 und 4 bis 7 dargestellt. Es hat einen etwa rechteckförmigen Rahmen 70. Einstückig mit diesem sind zwei flexible Laschen 46, 48 ausgebildet, die unten mit Rasthaken 46h bzw. 48h versehen sind.The part 44 is in the 1 and 4 to 7 shown. It has an approximately rectangular frame 70 , Integral with this are two flexible tabs 46 . 48 Trained at the bottom with snap hooks 46h respectively. 48h are provided.

Wie die Figuren zeigen, ist das Teil 44 zu seiner Mitte punktsymmetrisch, d. h. es kann auch so montiert werden, dass die Lasche 48 in die Rastöffnung 52 eingesteckt wird und nicht in die Rastöffnung 54.As the figures show, that's the part 44 center-symmetrical to its center, ie it can also be mounted so that the tab 48 in the detent opening 52 is plugged in and not in the detent opening 54 ,

Auf seiner Unterseite hat das Teil 44 eine Ausnehmung 74, die an die Form des Bauteils 20 angepasst ist und hier die Form einer Mulde hat. Diese Mulde 74 ist an ihrem Mittelbereich unterbrochen durch ein System mit zwei gekrümmten Federn 76, 78. Diese haben jeweils ein freies Ende 76a bzw. 78a, die sich gegenüber liegen, vgl. 15, und die etwas verdickt sind. Sie sind mit ihrem anderen Ende am Rahmen 70 befestigt, wie das 12 beispielhaft zeigt.On its underside has the part 44 a recess 74 that conform to the shape of the component 20 adapted and here has the shape of a trough. This hollow 74 is interrupted at its central area by a system with two curved springs 76 . 78 , These each have a free end 76a respectively. 78a , which are opposite each other, cf. 15 , and that are somewhat thickened. They are on the frame with their other end 70 attached, like that 12 exemplifies.

Wie die 5 und 6 zeigen, ist an der Kuppel der Mulde 74 jeweils eine Verstärkungsrippe 80 bzw. 82 vorgesehen, die dazu dient, die Steifheit des Gesamtsystems zu gewährleisten, das in einem Gehäuse 86, 88 angeordnet ist. Letzteres hat ein wannenförmiges Gehäuse-Basisteil 86, an dessen Unterseite die diversen Anschlüsse 34 vorgesehen sind und in dessen Innerem die Leiterplatte 22 in geeigneter Weise befestigt ist.As the 5 and 6 show is at the dome of the trough 74 one reinforcing rib each 80 respectively. 82 intended to ensure the rigidity of the overall system, which in a housing 86 . 88 is arranged. The latter has a trough-shaped housing base part 86 , at the bottom of which the various connections 34 are provided and in the interior of the circuit board 22 is fastened in a suitable manner.

Diesem Gehäuse-Basisteil 86 ist ein Gehäuse-Deckelteil 88 zugeordnet, das nach der Montage des Bauteils 20 mittels – nicht dargestellter – Schrauben am Gehäuse-Basisteil 86 befestigt wird.This housing base part 86 is a housing cover part 88 assigned after assembly of the component 20 by means - not shown - screws on the housing base part 86 is attached.

Dabei tauchen die Verstärkungsrippen 80, 82 in entsprechende Ausnehmungen des Deckelteils 88 ein. Bei diesem Vorgang werden die verschiedenen Mulden 50, 74 gegen das Bauteil 20 gepresst und halten es sicher fest.The reinforcing ribs dip 80 . 82 in corresponding recesses of the cover part 88 one. In this process, the different troughs 50 . 74 against the component 20 pressed and hold it securely.

Das Gehäuse-Deckelteil 92 hat auf seiner Innenseite 90 flache Mulden 96, 98, die jeweils über einem zugeordneten Bauteil 20 liegen und gemäß 13 bei geschlossenem Gehäuse 86, 92 (13) den vorgeschriebenen Luftabstand zwischen dem Bauteil 20 und dem Gehäusedeckel 92 schaffen.The housing cover part 92 has on its inside 90 shallow depressions 96 . 98 , each above an associated component 20 lie and according to 13 with the housing closed 86 . 92 ( 13 ) the prescribed air separation between the component 20 and the housing cover 92 create.

12 zeigt, dass im eingespannten Zustand die Lasche 48 mit ihrem Rasthaken 48h gegen die Unterseite der Rastöffnung 54 anliegt, weil das Teil 44 durch seine Federn 76, 78 nach oben gedrückt wird. 12 shows that in the clamped state the tab 48 with its latching hook 48h against the underside of the detent opening 54 is because the part 44 through his feathers 76 . 78 is pushed upwards.

Nach dem Anschrauben des Gehäusedeckels 92 liegt gemäß 13 der Rasthaken 48h nicht mehr gegen die Rastöffnung 54 an, da das Deckelteil 44 satt gegen das Bauteil 20 gepresst wird.After screwing on the housing cover 92 is according to 13 the locking hook 48h no longer against the detent opening 54 because of the lid part 44 tired against the component 20 is pressed.

Das in 14 dargestellte Bauteil wird mit 98 bezeichnet.This in 14 shown component is with 98 designated.

16 zeigt beispielhaft ein Schaltbild zur Erläuterung. Das Bauteil 98 ist zur Verdeutlichung mit einer strichpunktierten Linie umgeben. In ihm befindet sich der Kondensator 20, ferner der μC 30 und der Wechselrichter 26, der zur Ansteuerung eines Elektromotors 100 dient. Dieser hat einen (nicht dargestellten) permanentmagnetischen Rotor, der auch einen Rotorstellungssensor 102 steuert, dessen Ausgangssignal über eine Leitung 104 dem μC 30 zugeführt wird, z. B. zur Überwachung, ob sich der Motor 100 dreht, oder zur Drehzahlregelung oder für sonstige Zwecke. 16 shows an example of a circuit diagram for explanation. The component 98 is surrounded by a dot-dash line for clarity. In it is the capacitor 20 , the μC 30 and the inverter 26 , which is used to control an electric motor 100 serves. This has a (not shown) permanent magnetic rotor, which also has a rotor position sensor 102 controls, its output signal via a line 104 the μC 30 is supplied, for. B. to monitor whether the engine 100 rotates, or for speed control or for other purposes.

Der Gleichstrom-Zwischenkreis hat einen positiven Leiter 104 und einen negativen Leiter 106. Je nach Leistung können zwischen den Leitungen 104 und 106 unterschiedliche Gleichspannungen liegen.The DC link has a positive conductor 104 and a negative conductor 106 , Depending on the power can be between the lines 104 and 106 different DC voltages are.

Der Motor 100 kann ein kollektorloser Gleichstrommotor (BLDC) sein, oder z. B. ein BCI-Motor, ein ECA, ein CCI, oder ein PMSM, also ein permanentmagnetisch erregter Synchronmotor. Alle diese Motoren benötigen einen Zwischenkreiskondensator, der wesentlich größer ist als die sonstigen elektronischen Bauteile eines solchen Motors. Sehr wichtig ist, dass dieser Kondensator gegen mechanische Beschädigungen, Vibrationen etc. möglichst gut geschützt wird, um eine entsprechende Lebensdauer zu erhalten.The motor 100 may be a brushless DC motor (BLDC), or z. B. a BCI engine, an ECA, a CCI, or a PMSM, so a permanent magnetically excited synchronous motor. All of these motors require a DC link capacitor, which is substantially larger than the other electronic components of such a motor. It is very important that this capacitor is protected as well as possible against mechanical damage, vibrations, etc. in order to obtain a corresponding service life.

Naturgemäß sind im Rahmen der vorliegenden Erfindung vielfache Abwandlungen und Modifikationen möglich. Durch die Erfindung werden Reparaturen sehr erleichtert, weil ein defekter Kondensator 20 leicht ersetzt werden kann, und es ist bei Bedarf in einfacher Weise möglich, die Halteglieder für einen zweiten Kondensator nachträglich einzubauen. Dies vereinfacht den Austausch von Bauteilen. Auch sind zur Fixierung des Kondensators 20 auf der Leiterplatte keine Klebstoffe oder dergleichen erforderlich, und man kann unterhalb der Haltevorrichtung zusätzliche elektronische Bauteile anordnen.Naturally, many modifications and modifications are possible within the scope of the present invention. The invention greatly facilitates repairs because of a defective capacitor 20 can be easily replaced, and it is easily possible, if necessary, to install the holding members for a second capacitor subsequently. This simplifies the replacement of components. Also are for fixing the capacitor 20 on the circuit board no adhesives or the like required, and you can arrange additional electronic components below the fixture.

Claims

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 44 ), which via at least one connecting member ( 46 . 48 ) with the base part ( 42 ) is connectable, wherein the base part and cover part between a recess ( 50 . 74 ) for fixing the electrical component ( 20 ) is trained; one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ), which on the fixed in the device electrical component ( 20 ) acts to restrain it in a forgiving manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is designed to move it in the direction of the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 86 ) is attached.

Device according to claim 1, in which the spring arrangement ( 76 . 78 ) on the cover part ( 44 ) of the holding device is provided and in the mounted state, the electrical component ( 20 ) towards the base part ( 42 ) of the holding device acted upon.

Device according to Claim 1 or 2, in which the spring arrangement comprises spring elements ( 76 . 78 ) made of plastic, which in each case in the region of one end on the cover part ( 44 ) of the holding device ( 42 ) and with their other, resilient end ( 76a . 78a ) against the component ( 20 ) and it towards the base part ( 42 ).

Device according to one of the preceding claims, in which the cover part ( 44 ) of the holding device ( 42 ) at least one section ( 80 ), which only after deflection of the spring assembly ( 76 . 78 ) to the plant against the electrical Component ( 20 ) comes to it in the fixture ( 42 . 44 ).

Device according to one of the preceding claims, in which the base part ( 42 ) of the holding device ( 42 . 44 ) with a stop ( 56 ), which protrudes from the electrical component ( 20 ) bounded by the holding device.

Device according to at least one of the preceding claims, wherein the connecting member for connecting the base part ( 42 ) with the cover part ( 44 ) at least one part ( 46 . 48 ) made of flexible plastic.

Device according to Claim 6, in which the part ( 46 . 48 ) made of flexible plastic at one end in one piece with the associated part ( 42 . 44 ) of the connection arrangement is formed.

Device according to claim 6 or 7, in which the part ( 46 . 48 ) made of flexible plastic in the region of its free end with a hook ( 46h . 48h ) is provided, which for engagement with an associated latching opening ( 52 . 54 ) is trained.

Device according to Claim 8, in which the latching hook ( 46h . 48h ) after completion of the assembly except latching engagement with the associated latching opening ( 52 . 54 ) stands.

Device according to one of the preceding claims, in which the base part ( 42 ) of the holding device with at least one projection ( 62 . 64 ) for engagement in a corresponding recess ( 66 . 68 ) of the printed circuit board ( 22 ) is provided.

Device according to Claim 10, in which the projection of the base part ( 42 ) as a latching hook ( 62 . 64 ) is trained.

Device according to one of the preceding claims, wherein the electrical component as an electrolytic capacitor ( 20 ) is trained.

Device according to one of the preceding claims, in which the cover part ( 44 ) of the holding device for introducing a force from the side of the housing cover part ( 92 ) is trained.

Device according to one of the preceding claims, wherein the housing cover part ( 92 ) on its inside ( 90 ) in the region of an electrical component ( 20 ) with a depression ( 96 . 98 ), which measures the air distance between the electrical component ( 20 ) and this depression ( 96 . 98 ).

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 44 ), which via at least one connecting member ( 46 . 48 ) with the base part ( 42 ) is connectable, wherein the base part and cover part between a recess ( 50 . 74 ) for fixing the electrical component ( 20 ) is trained; one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ), which on the fixed in the device electrical component ( 20 ) acts to hold it in an elastically resilient manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is formed to the latter in the direction of the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 86 ) is attached; and the spring arrangement ( 76 . 78 ) on the cover part ( 44 ) of the holding device is provided and in the mounted state, the electrical component ( 20 ) towards the base part ( 42 ) of the holding device acted upon.

Device according to Claim 15, in which the spring arrangement comprises spring elements ( 76 . 78 ), which in each case in the region of one end on the cover part ( 44 ) of the holding device ( 42 ) and with their other, resilient end ( 76a . 78a ) against the component ( 20 ) and this towards the base part ( 42 ).

Device according to one of the preceding claims, in which the cover part ( 44 ) of the holding device ( 42 ) at least one section ( 80 ), which only after deflection of the spring assembly ( 76 . 78 ) for abutment against the electrical component ( 20 ) comes to it in the fixture ( 42 . 44 ).

Device according to one of claims 15 to 17, in which the base part ( 42 ) of the holding device ( 42 . 44 ) with a stop ( 56 ), which protrudes from the electrical component ( 20 ) bounded by the holding device.

Device according to at least one of claims 15 to 18, in which the connecting member for connecting the base part ( 42 ) with the cover part ( 44 ) at least one flexible connection part ( 46 . 48 ) made of flexible plastic.

Device according to Claim 19, in which the flexible connecting part ( 46 . 48 ) at one end in one piece with the associated part ( 42 . 44 ) of the connection arrangement is formed.

Device according to Claim 19 or 20, in which the flexible connecting part ( 46 . 48 ) in the area of its free end with a hook ( 46h . 48h ) is provided, which for engagement with an associated latching opening ( 52 . 54 ) is trained.

Device according to Claim 21, in which the latching hook ( 46h . 48h ) after completion of the assembly ( 13 . 14 ) no longer in frictional engagement with the associated latching opening ( 52 . 54 ) stands.

Device according to one of Claims 15 to 22, in which the base part ( 42 ) of the holding device with at least one latching hook ( 62 . 64 ) for engagement in a corresponding recess ( 66 . 68 ) of the printed circuit board ( 22 ) is provided.

Device according to one of claims 15 to 23, wherein the cover part ( 44 ) of the holding device for introducing a force from sides of the housing cover part is formed.

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 44 ), which via at least one connecting member ( 46 . 48 ) with the base part ( 42 ) is connectable, wherein the base part and cover part between a recess ( 50 . 74 ) for fixing the electrical component ( 20 ) is adjusted; one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ), which on the fixed in the device electrical component ( 20 ) acts to adhere to it in a forgiving manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is formed to the latter in the direction of the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 86 ) is attached; and the lid part ( 44 ) of the holding device ( 42 ) has at least one section, which only after deflection of the spring arrangement ( 76 . 78 ) for abutment against the electrical component ( 20 ) comes to the latter in the holding device ( 42 . 44 ).

Apparatus according to claim 25, wherein the connecting member for connecting the base part ( 42 ) with the cover part ( 44 ) at least one part ( 46 . 48 ) made of flexible plastic.

Device according to Claim 26, in which the part ( 46 . 48 ) made of flexible plastic in the region of its free end with a hook ( 46h . 48h ) is provided, which for engaging in an associated latching opening ( 52 . 54 ) is trained.

Device according to one of Claims 25 to 27, in which the base part ( 42 ) of the holding device with at least one latching projection ( 62 . 64 ) for engagement in a corresponding recess ( 66 . 68 ) of the printed circuit board ( 22 ) is provided.

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 44 ), which via at least one connecting member ( 46 . 48 ) with the base part ( 42 ) is connectable, wherein the base part and cover part between a recess ( 50 . 74 ) for fixing the electrical component ( 20 ) is adjusted; one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ), which on the fixed in the device electrical component ( 20 ) acts to restrain it in a forgiving manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is designed to move this towards the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 86 ) is attached; and the connecting member for connecting the base part ( 42 ) with the cover part ( 44 ) at least one part ( 46 . 48 ) made of flexible plastic.

Device according to Claim 29, in which the part ( 46 . 48 ) made of flexible plastic at one end in one piece with the associated part ( 42 . 44 ) of the connection arrangement is formed.

Device according to claim 30, in which the part ( 46 . 48 ) made of flexible plastic in the region of its free end with a hook ( 46h . 48h ) is provided, which for engagement with an associated latching opening ( 52 . 54 ) is trained.

Device according to Claim 31, in which the latching hook ( 46h . 48h ) after completion of the assembly except latching engagement with the associated latching opening ( 52 . 54 ) stands.

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 44 ), which via at least one connecting member ( 46 . 48 ) with the base part ( 42 ) is connectable, with the base part and cover part between them a recess ( 50 . 74 ) for fixing the electrical component ( 20 ) suitable is; one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ) which on the fixed in the device electrical component ( 20 ) acts to restrain it in a forgiving manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is formed to the latter in the direction of the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 86 ), and the base part ( 42 ) of the holding device with at least one projection ( 62 . 64 ) for latching engagement in a corresponding recess ( 66 . 68 ) of the printed circuit board ( 22 ) is provided.

Device according to Claim 33, in which the projection of the base part ( 42 ) as a latching hook ( 62 . 64 ) is trained.

Device according to one of claims 33 to 35, wherein the cover part ( 44 ) of the holding device for introducing a force from the side of the housing cover part ( 92 ) is trained.

Device according to one of claims 33 to 36, wherein the housing cover part ( 92 ) on its inside ( 90 ) in the region of the electrical component ( 20 ) with a depression ( 96 . 98 ), which measures the air distance between the electrical component ( 20 ) and this depression ( 96 . 98 ).

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 449 ; which has at least one connecting link ( 46 . 48 ) with the base part ( 42 ) is connectable, wherein the base part and cover part between a recess ( 50 . 74 ) for fixing the electrical component ( 20 define); one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ), which on the fixed in the device electrical component ( 20 ) acts to restrain it in a forgiving manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is formed to the latter in the direction of the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 96 ), and the lid part ( 44 ) of the holding device for introducing a force from the side of the housing cover part ( 92 ) is trained.

Device according to Claim 38, in which the housing cover part ( 92 ) on its inside ( 90 ) in the region of an electrical component ( 20 ) with a depression ( 96 . 98 ), which measures the air distance between the electrical component ( 20 ) and this depression ( 96 . 98 ).

Device for holding an electrical component ( 20 ) on a printed circuit board ( 22 ), which device comprises: a base part ( 42 ) for mounting on the printed circuit board ( 22 ); a lid part ( 44 ), which via at least one connecting member ( 46 . 48 ) with the base part ( 42 ) is connectable, wherein the base part and cover part between a recess ( 50 . 74 ) for fixing the electrical component ( 20 define); one of these recesses ( 50 . 74 ) associated spring arrangement ( 76 . 78 ), which on the fixed in the device electrical component ( 20 ) acts to restrain it in a forgiving manner; a housing which has a housing base part ( 86 ) and a housing cover part ( 92 ), which are fastened to each other; wherein the housing cover part ( 92 ) to rest against the cover part ( 44 ) of the holding device is designed to move this towards the base part ( 42 ) to apply the holding device when the housing cover part ( 92 ) on the housing base part ( 86 ) is attached; and the housing cover part ( 92 ) on its inside ( 90 ) in the region of the electrical component ( 20 ) with a depression ( 96 . 98 ), which measures the air distance between the electrical component ( 20 ) and this depression ( 96 . 98 ).