DE1905656C3

DE1905656C3 - Rectifier bridge

Info

Publication number: DE1905656C3
Application number: DE19691905656
Authority: DE
Inventors: Manfred 8000 München Riermeier
Original assignee: Siemens AG
Current assignee: Siemens AG
Filing date: 1969-02-05
Publication date: 1978-02-16

Description

Leiterteil 3 und dem Leiterteil 3a ergibt. Die KJemmfahne 14 ist dabei aus der Klemmfahne 12 herausgestanzt und daher elektrisch von dieser vollkommen getrennt Es ist ersichtlich, daß auf diese Weise ein Kireuzungspunkt zweier, verschiedene Potentiale fahrender Leiterteile geschaffen wird, ohne daß dafür eine besondere zweite Leiterebene erforderlich ist. Diese wird vielmehr im wesentlichen durch die hintere Elektrode des Halbleiterelements 13 gebildetLadder part 3 and the ladder part 3a results. The terminal lug 14 is punched out of the terminal lug 12 and is therefore completely electrically separated from it. It can be seen that in this way a junction point between two conductor parts with different potentials is created without a special second conductor level being required. Rather, it is essentially formed by the rear electrode of the semiconductor element 13

Im gezeigten Ausführungsbeispiel ergibt sich, bei gleicher Durchlaßrichtung der Halbleiterelemente 10 und 13, z. B. von der vorderen zur hinteren Elektrode und bei einer Durchlaßrichtung der Halbleiterelemente 7 und 17 von der hinteren zur vorderen Elektrode von links nach rechts z. B. die Polaritätsfolge Minus, Wechsel, Wechsel, Plus. Das mittlere Leiterteil 3 und das Leiterteil 19 hat keine Funktion mehr zu erfüllen und wird daher zweckmäßigerweise abgetrenntIn the exemplary embodiment shown, the result is that the semiconductor elements 10 are in the same forward direction and 13, e.g. B. from the front to the rear electrode and in a forward direction of the semiconductor elements 7 and 17 from the rear to the front electrode of left to right z. B. the polarity sequence minus, change, change, plus. The middle ladder part 3 and the Ladder part 19 no longer has any function to fulfill and is therefore expediently separated

Die Gleichrichterbrücke gemäß der Erfindung läßt sich besonders einfach dadurch herstellen, daß zunächst Leiterteile, Stege und Klemmfahnen aus eiaem einzigen Stück Blech ausgestanzt werden, wobei die zum Anschluß bestimmten Enden der Leiterteile zunächst über einen Blechsteg 20 miteinander verbunden bleiben. Dadurch lassen sich die Halbleiterelemente besonders einfach zwischen die federnden Klemmfahnen einlegen und werden von diesen ohne eine zusätzliche Vorrichtung festgehalten. Danach werden die Halbleiterelemente mit den übrigen Teilen dadurch verlötet, daß die Brücke 19 beispielsweise bis zu einer Höhe in ein Lötbad getaucht wird, die durch die mit 21 bezeichnete gestrichelte Linie gekennzeichnet ist Anschließend werden dann die zum Anschluß bestimmten Enden der Leiterteile aus dem Blechstück 20 herausgestanzt Die Gleichrichterbrücke wird dann in ein Gehäuse eingesetzt, das mit Kunststoff vergossen wird. Die Leiterteile 3 und 19 werden zweckmäßigerweise vor dem Vergießen so weit gekürzt, daß sie nicht mehr aus dem Gehäuse herausragen.The rectifier bridge according to the invention can be produced particularly easily in that first Ladder parts, webs and terminal lugs made from a single one Pieces of sheet metal are punched out, the ends of the conductor parts intended for connection initially Remain connected to one another via a sheet metal web 20. This makes the semiconductor elements special simply insert between the resilient clamping lugs and you can use them without an additional device held. Then the semiconductor elements are soldered to the remaining parts in that the Bridge 19 is immersed in a solder bath, for example, up to a height that is indicated by the number 21 The dashed line is then followed by the ends of the Conductor parts punched out of the sheet metal piece 20 The rectifier bridge is then inserted into a housing, that is potted with plastic. The conductor parts 3 and 19 are expediently before The potting has been shortened to such an extent that it is no longer out of the Housing protrude.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Claim:

Rectifier bridge with sheet metal conductor parts lying next to one another in one plane, in which the two outer conductor parts are connected to one another by a web located on the end of the conductor parts facing away from the end of the conductor parts intended for electrical connection, in which the ends of the conductor parts facing away from the end intended for connection have at least one terminal lug, which is directed towards the adjacent conductor part and is located next to its terminal lug, in which a semiconductor element made of monocrystalline material with at least one pn transition is resiliently clamped between the terminal lugs and in which the electrodes of the half-letter elements are soldered to the terminal lugs characterized in that one of the inner semiconductor elements (13) is assigned an additional clamping lug (14) with an additional conductor part (3a) , that the conductor connecting the one inner semiconductor element (13) and the one outer semiconductor element (17) r part (4) between the conductor part (3) connecting the two inner semiconductor elements (10, 13) and the additional conductor part (3a) so that the shape of the clamping lugs (11, 12, 14) resting on the one inner semiconductor element (13) of these conductor parts (3, 4, 3a) is chosen so that the clamping lug (12) of the one inner semiconductor element (13) and the one outer semiconductor element (17) connecting the conductor part (4) with one electrode of the one inner semiconductor element (13 ) is connected and that the clamping lugs (11, 14) of the conductor parts (3, 3a) lying on both sides are connected to the other electrode of the one inner semiconductor element (13).

The present invention relates to a rectifier bridge with adjacent, in one plane, made of sheet metal ladder parts, in which the two outer ladder parts through a the web facing away from the end of the conductor parts intended for the electrical connection are connected to each other, in which the ends of the facing away from the end intended for connection Ladder parts at least one towards the adjacent ladder part and next to its terminal lug Have lying clamping lugs, in which between the clamping lugs each have a semiconductor element made of monocrystalline Material is resiliently clamped with at least one pn junction and in which the electrodes the semiconductor elements are soldered to the terminal lugs. Such a rectifier bridge is already Subject of the earlier patent 16 14 567.

The bridge as claimed has a pole sequence of the conductor parts in which alternating potentials lead Alternate parts of the conductor with parts carrying the same potential. Such a pole sequence is z. B. Plus, bills of exchange, Minus, change. For certain purposes, however, a pole sequence is required in which the two Conductor parts carrying equal potential outside and the two conductor parts carrying alternating potential inside lie or vice versa. However, such a pole sequence cannot be easily achieved if the ladder parts, the web and the terminal lugs are punched out of a single piece of sheet metal. Then stands namely, only a single conductor level is available. However, there are crossings of different potentials leading parts of the ladder necessary.

From DT-AS 12 46888 two rectifier bridges are known which have the required pole sequence. In this bridge, however, the ladder parts and the terminal lugs consist of several pieces of sheet metal, what the

ίο Production made much more difficult.

The object on which the invention is based is to develop a rectifier bridge of the initially mentioned mentioned type so that a pole sequence minus, change, change, plus and change, plus,

is minus, change of ladder parts is achieved. It should no second conductor level is used.

The invention is characterized in that one of the internal semiconductor elements has an additional Terminal lug with a: m additional conductor part is assigned that the one inner semiconductor element and the conductor part connecting an outer semiconductor element between which the two inner semiconductor elements connecting ladder part and the additional ladder part lkgt that the shape of the one inner

2s semiconductor element adjacent terminal lugs of this Conductor parts is chosen so that the clamping lug of the one inner semiconductor element and the one outside Semiconductor element connecting conductor part to the one electrode of an inner semiconductor element is connected and that the terminal lugs of the conductor parts lying on both sides with the other electrode of the one inner semiconductor element are connected.

An exemplary embodiment is explained with reference to the figure. The rectifier bridge shown in the figure has adjoining ladder parts. The ladder part 1 carries a terminal vane 5 at the end, the Ladder part 2 has two clamping lugs 6 and 8, ladder part 3 has two clamping lugs 9 and U, and ladder part 4 has two Terminal lugs 12 and 15 and the conductor part 3 a, a terminal lug 14. The conductor part 19 is connected via a web 18 connected to the ladder part 1. The conductor part 19 therefore carries the same potential as the conductor part 1. It has a clamping lug 16 which lies opposite the clamping lug 15 of the conductor part 4. Between the Kiemm flags the conductor parts are clamped in sequence with semiconductor elements. To further explain the Structure of the rectifier bridge is initially assumed that the semiconductor element 7 so is sandwiched between the clamping lug 5 and 6 that

so the terminal lug 6 on that electrode of the Semiconductor element 7 rests, which faces away from the viewer. Those turned away from the viewer In the following, for the sake of simplicity, electrodes are referred to as "rear" electrodes, while the others are referred to as "front" Called electrode. The clamping lug 8 of the conductor part 2 lies on the rear electrode of the semiconductor element 10 and the clamping lug 9 of the conductor part 3 on the front electrode of the semiconductor element 10. the Terminal lug II of the conductor part 3 lies on the front Electrode of the semiconductor element

13. The clamping lug lies on the rear electrode of the semiconductor element 13 12 of the conductor part 4, the terminal lug 15 of the conductor part 4 is then on the rear electrode of the Semiconductor element 17, the front electrode of which is held by the clamping lug 16 of the conductor part 19.

The clamping lug 14 of the conductor part 3a lies on the front electrode of the semiconductor element 13, so that an electrical connection between the