DE2150127A1 - Rectifier arrangement - Google Patents

Description

Patent attorney 2 1 R Ω 1? 7th

Dipl.-Phys. Leo Thul. «. ι mu ι ä /

Stuttgart

F.C. CoIe-E.E. Singer 4-1

International Standard Electric Corporation, New York

Classification judge arrangement

The invention relates to a G-Ieic converter assembly with several semiconductor diodes and capacitors.

In practice there is a desire to have rectifier arrangements to be able to use the dielectric strength of which can be changed over a wide range.

The object of the present invention is to find a Gleieuhrer arrangement that can be achieved by simple Means allows multiple rectifier elements to be lined up in order to increase the dielectric strength raise.

According to the present invention, the object is achieved in that the semiconductor diodes like bolts a common disc, which consists of electrically insulating material that conducts heat well, can be mounted and that they are poled in a correspondingly electrically conductive manner in series between two electrically conductive ones Plates are connected, which are parallel and spatially separated on opposite sides of the disc are arranged.

■ In a further advantageous embodiment of the invention it is proposed that the plates be designed in such a way that they prevent discharge and that the disk and the plates are formed so as to be arbitrary

Hö / m - H.9.1971 ./·

P.C. Cole-Ε.E. Singer 4-1

many rectifier arrangements connected in series can be.

A preferred embodiment of the invention will now be described with reference to the accompanying drawings Drawings in which

Figure 1 is a side view of a high voltage rectifier;

Figure 2 shows a view of one of the arrangements of Figure 1 in the direction of line A-A;

Figure 3 shows a view of one of the arrangements of Figure 1 in the direction of line B-B and

FIG. 4 shows the circuit diagram of a rectifier arrangement.

The apparatus shown in Figure 1 includes an interconnected stack of rectifier assemblies only one of which is shown in detail.

Each rectifier arrangement contains a disc 1 from electrically insulating but thermally highly conductive material, the material in this version being made of Ceramic based on aluminum oxide consists.

The disc 1 has a circular groove 2 (FIG. 2) and five connected in series on one surface Silicon diodes 5, which like bolts through holes of the same size are stuck inside the circle through the disc. The disc has the function of a base plate and one

• A

209818/0599

P.C. Cole-Ε.E. Ginger 4-1

Heat sink. The groove 2 enables two things, on the one hand it increases the surface area for heat dissipation and furthermore it represents a means of preventing the diodes from rotating when the bolts 4 according to FIG initial arrangement. Same electrodes (the pin electrode 5 is the cathode and the bolt electrode 6 is anode) are on the same side of the pane and the diodes are connected by cables, such as 7, in sequence around the disc in Connected in series, as FIG. 4 shows, between a connection 8 of an anode plate 9 to an anode connection lug 10a of the first diode 3a, the cathode 5a of the diode 3a with the terminal lug 10b of the next Diode 3b and so on until the cathode 5e of the fifth diode 3e is connected to a terminal 11 of a cathode plate 12 which is shaped at its corners to prevent peak discharges (corona discharges), and which has an overall diameter that is substantially that of the disc 1 is the same. The consecutive connection cathode - anode of the diodes runs through corresponding Holes 13 in the groove 2 of the disc 1.

Five capacitors 14 are provided, each of which is connected in parallel with one of the diodes 3, as in FIG Figure 4 shown. The first four capacitors 14a 14d are arranged completely on the anode side of the disk 1, each capacitor 14 between the anode tabs such as 15a and 15b of the two corresponding ones Diodes is switched. The fifth capacitor 14e is arranged in a further hole 16 in the groove 2 of the disk 1. This reduces the length of the line that connects this capacitor to the cathode of the fifth diode

• A

209818/0599

FO Cole-Ε.E. Singer 4-1

The anode / plate 9 is made of aluminum, is parallel to the disk 1 and is arranged at a suitable distance from it by a mushroom-shaped, electrically insulating central support 17 formed on the disk 1, in order to prevent electrical flashovers between the bolts, diodes and other wires on the anode side impede. The anode plate 9 is suitably bonded to the flat surface of the ceramic support 17. The anode plate 9 has a diameter which is smaller, al>. of the disk 1 and such a to permit the one flat surface district ER- f enables to prevent a gently shake and an electrical interconnection with a further array of stacks, as will be described later.

The cathode plate 12 is also made of aluminum, is parallel to the disk 1 and has both the aforementioned Functions as well as those of the corona plate, is applied and suitably connected to the flat surface of a mushroom-shaped electrically insulating central support 18, the is formed on the cathode side of the disk 1.

. The support 17 and the anode plate 9 are with a central Internal thread 19 provided and on the support 18 and the cathode plate 12 is a corresponding external thread provided that any required number of arrays can be stacked one on top of the other. The cathode plate one arrangement lies on top of the anode plate of the next arrangement. If necessary, the anode-side end can be used the device can be completed by a mirror-inverted corona plate.

Investments;

7 claims
2 sheets of drawings
1 List of Reference Numbers

209818/0599

Claims (4)

Cole-Ε.E. Singer 4-1 Patent claims: In-line arrangement with several semiconductor diodes and capacitors, characterized that the semiconductor diodes (3) like Bolt on a joint note (1), which is made of electrically insulating material with good thermal conductivity ■ consists, are mounted, and that they are in appropriate Polarized way electrically conductive connected in series between two electrically conductive plates (9 * 12) are, which are arranged parallel and spatially separated on opposite sides of the disc (1). 2.) Rectifier arrangement according to claim 1, characterized ι that the disc (1) consists of ceramic based on aluminum oxide. 3) aligner arrangement according to claims 1 and 2, characterized in that one capacitor (14) is connected in parallel to one diode (3) each 4.) alignment according to one or more of the Claims 1 to 3, characterized in that a circular groove (2) in the surface of the disc (T) provided and that the diodes (3) are arranged in this are. 5 «) aligner arrangement according to one or more of the Claims T to 4, characterized in that both conductive plates (9> 12) are attached to two insulating holders molded onto the Seheibe (1). 209818/0599 F.O. Cole-Ε.E. üinger 4-1 6 *} ffrectifier arrangement according to one or more of claims 1 to 5, characterized in that at least one of the conductive plates (12) has a diameter substantially equal to that of the disc (1) and that the plates are shaped so that they are designed as a "corona" plate. 7 ») Rectifier arrangement according to one or more of the . Claims 1 to 6, characterized in that means * are provided on outer conductive plates (9, 12), which allow any number of rectifiers to stack one on top of the other.