DE102010051920B4 - Overvoltage protection magazine - Google Patents

Abstract

Overvoltage protection magazine (1) for a device (20) of the telecommunications and data technology, comprising a housing, a printed circuit board (6), a plurality of overvoltage protection elements (7), at least one ground contact (11) and a plurality of interface contacts, by means of which the overvoltage protection elements (7) electrically can be connected to the device (20), wherein the interface contacts are formed as double contacts, each having a first contact (9) and a second contact (10), wherein the first contact (9) is designed as a printed circuit board contact, which electrically with a Overvoltage protection element (7) on the circuit board (6) is connected, and the second contact (10) is designed as PCB plug contact, by means of which a printed circuit board of the device (20) is contacted, characterized in that the at least one ground contact (11) on protrudes than the second contacts (10), wherein the housing ausgebil at least two parts Det, wherein a first housing part (2) and a second housing part (3) each have rib-shaped elements (18, 19), wherein the rib-shaped elements (18, 19) are arranged offset from one another and are guided past each other.

Description

The invention relates to a surge protection magazine.

From the DE 10 2009 007 338 B3 an overvoltage protection magazine for a device of telecommunications and data technology is known, comprising a housing, a printed circuit board, a plurality of surge arresters and at least one ground contact, wherein the surge arresters are arranged on the circuit board and are connected via conductor tracks with arranged on the circuit board contact pads in the plugged State come into electrical contact with contacts of the device for telecommunications and data technology, wherein the housing has at the bottom slit-shaped openings for the contact pads carrying parts of the printed circuit board and having at least one opening for the at least one ground contact, which through the opening plugged part of the earth contact is designed as a single-fork contact, wherein the opening for the ground contact is a slot-shaped opening for the assembled printed circuit board or a separate slot-shaped opening which is on a L with the slot-shaped openings of the circuit board, wherein the ground contact has a second single-fork contact, which contacts the circuit board, wherein the planes of the two single-fork contacts are rotated by 90 ° to each other, wherein the ground contact is integrally formed. The contact pads represent interface contacts between the overvoltage protection magazine and the device, the contact pads being inserted into isolating contacts of the device.

From the DE 10 2005 042 163 B3 is a generic surge protection magazine known.

From the DE 198 18 477 A1 An overvoltage protection magazine for a telecommunication device is known, comprising a housing, a plurality of contacts which extend with a section from the rear side of the housing and in the attached state tap contacts of the device. Next, the overvoltage protection magazine has at least one ground contact, wherein in the overvoltage protection magazine several surge arresters can be used, which have legs that are directly electrically connected in the inserted state with the contacts. In this case, the contacts each have a contact protection, which is defined by two largely lying in a plane contact legs, the surge arresters are used from the front of the housing in the direction of their legs so that in the inserted state, the respective legs in a direction largely parallel extends to the contact slot in this. The earth contact is considerably longer than the contacts. The overvoltage protection magazine can thus be realized without a printed circuit board.

The invention is based on the technical problem of improving a generic overvoltage protection magazine.

The solution of the technical problem results from the subject matter with the features of claim 1. Further advantageous embodiments of the invention will become apparent from the dependent claims.

For this purpose, the overvoltage protection magazine for a telecommunications and data technology device comprises a housing, a printed circuit board, a plurality of overvoltage protection elements, at least one ground contact and a plurality of interface contacts, by means of which the overvoltage protection elements are electrically connectable to the device, wherein the interface contacts are formed as double contacts, each one The first contact and a second contact, wherein the first contact is formed as a printed circuit board contact, which is electrically connected to an overvoltage protection element on the circuit board, and the second contact as printed circuit board plug contact, in particular as a fork contact or as a spring contact, is formed, by means of which electrically a circuit board the device is contactable. This makes it possible to protect the device from surges without affecting the Beschaltbarkeit of the contacts of the device. The overvoltage protection magazine represents a printed circuit board connector that can be easily plugged into a suitable location on a printed circuit board of the device. In contrast to firmly applied on the circuit board of the device overvoltage protection elements results in a flexible use and a simple replacement of the surge protector. The overvoltage protection elements may be, for example, diodes and / or surge arresters. The first contact may be formed, for example, as a solderable pin contact or as a press-fit contact. Due to the design of the second contact as a fork contact tolerances can be compensated very easily, so that there is a simple tool-free contact with sufficient contact force, since both legs of the fork contact press against the circuit board of the device.

In this case, the at least one earth contact is ahead of the second contacts of the interface contacts. This ensures that only the ground contact is made before the overvoltage protection elements are connected to the telecommunication lines.

Further, the housing is at least two parts, so that the assembly of the overvoltage protection magazine is facilitated.

Furthermore, each have a first housing part and a second housing part rib-shaped elements which are arranged offset from one another and are guided past each other. As a result, an air gap and creepage distance between the interface contacts is improved.

In one embodiment, the first contact of the interface contact is formed as a fork contact, with respect to the advantages can be made to the previous statements to the second contact. For this purpose, the printed circuit board with the overvoltage protection elements preferably has corresponding contact pads with printed conductors, via which the interface contacts are electrically connected to the overvoltage protection elements.

In a further embodiment, the earth contact is designed as a double contact, wherein a first contact makes contact with a grounding conductor on the printed circuit board with the overvoltage protection elements and the second contact serves for contacting a ground connection of the device. The ground terminal of the device may be an external grounding rail or an electrically conductive support frame. But it is also possible that the ground terminal is arranged on the circuit board of the device, which is then connected, for example, to the carrier. However, an external ground connection is preferred because then the overcurrents need not be routed through the circuit board of the device.

In another embodiment, the earth contact is formed as a double fork contact, i. Both the connection to the circuit board with the overvoltage protection elements and the connection to the ground terminal via a fork contact. In addition, the respective fork contact itself may also be designed as a double fork contact with two parallel fork contacts.

In a further embodiment, the second contact of the ground contact is arranged parallel or rotated by 90 ° relative to the second contacts of the interface contacts. In this case, the second contact of the ground contact is preferably arranged in parallel when the ground connection is made on the circuit board of the device or on a separate grounding rail. Turned by 90 °, the second Kotakt the ground contact, if the ground connection, for example via a mounting tray.

In a further embodiment, the second contact of the earth contact is guided outside the housing. It should be noted in general that preferably two earth contacts are present in order to divide the streams better.

• 1 eine perspektivische Darstellung eines zusammengesetzten Überspannungsschutzmagazins,
• 2 eine perspektivische Darstellung mit entferntem erstem Gehäuseteil,
• 3 eine perspektivische Darstellung mit entferntem zweitem Gehäuseteil,
• 4 eine Seitenansicht des Überspannungsschutzmagazins,
• 5 eine Schnittdarstellung entlang des Schnittes B-B in 4 und
• 6a-6c eine Einrichtung der Telekommunikations- und Datentechnik mit den erfindungsgemäßen Überspannungsschutzmagazinen.

The invention will be explained in more detail below with reference to a preferred embodiment. The figures show:

• 1 a perspective view of a composite surge protection magazine,
• 2 a perspective view with removed first housing part,
• 3 a perspective view with removed second housing part,
• 4 a side view of the overvoltage protection magazine,
• 5 a sectional view along the section BB in 4 and
• 6a-6c a device of telecommunications and data technology with the overvoltage protection magazines according to the invention.

In the 1 is the overvoltage protection magazine 1 shown. The surge protection magazine 1 includes a first housing part 2 and a second housing part 3 , The first housing part 2 and the second housing part 3 are locked together. For this purpose, the first housing part 2 latching openings 4 (please refer 3 ) and the second housing part 3 locking lugs 5 (please refer 2 ) on. Next points the overvoltage protection magazine 1 a circuit board 6 on, on the overvoltage protection elements 7 are arranged (see 2 ). The overvoltage protection elements 7 are electrically connected via printed conductors, not shown, with contact pads, not shown. The contact pads can be on one side or on both sides of the circuit board 6 be arranged. Next points the overvoltage protection magazine 1 Interface contacts in the form of double fork contacts 8th on (see eg 5 ). The first contact 9 of the double fork contact 8th contacts the previously described contact pads, while the second contact 10 for contacting a circuit board of a device for telecommunications and data technology is used. It should be noted that in 2 right or in 3 left some double fork contacts 8th were removed. Finally, the overvoltage protection magazine includes 1 two earth contacts 11 , which are also designed as double fork contacts. It should be noted again that in the 2 and 3 one earth contact each 11 was removed.

The first fork contact 12 the earth contacts 11 contacted a contact pad, not shown on the circuit board 6 connected to a common ground line of the overvoltage protection elements 7 on the circuit board 6 connected is. The second fork contact 13 serves for contacting a grounding rail. The first and second fork contact 12 . 13 is parallel to the first and second contacts 9 . 10 the double fork contacts 8th aligned. However, there is the second fork contact 13 something in comparison to the second contacts 10 ie the fork contact 13 is a bit closer to a lower edge 14 of the second housing part 3 , wherein this outside the second housing part 3 is guided.

The first housing part 2 has further on each side surface four semi-cylindrical indentations 15 with a free cut 16 on. The free cuts 16 form a semicircular support surface for a cover strip 17 (please refer 5 ), which serves in particular as a contact protection. Next, the first housing part 2 rib-shaped elements 18 on (see 3 ), between which the double fork contacts 8th are guided. Next also has the second housing part 3 rib-shaped elements 19 on (see 2 ), between which the double fork contacts 8th are guided. In the assembled state, the mutually offset rib-shaped elements overlap 18 . 19 and thus increase an air gap and creepage distance between the double fork contacts 8th , It should be noted that the rib-shaped elements 18 only in the lower part of the first housing part 2 are arranged, in which the double fork contacts 8th be guided.

In the 6a-c is a facility 20 presented the telecommunications and data technology. The device 20 is designed as a distributor connection module, wherein the distributor connection module can be pivoted by 90 ° to the left or right by a pivoting mechanism. The distributor connection module is in 6a in a starting situation, in 6b 90 ° to the right and in 6c pivoted 90 ° to the left from the initial situation. The distributor connection module has a T-shaped housing 21 on, at the back of a grounding rail 24 is arranged (see 6b) , In the T-shaped housing 21 PCBs are arranged. As a PCB connector 22 trained input contacts are each a printed circuit board with a PCB connector 23 connected as output contacts, wherein on the circuit board functional elements may be arranged, which may be located electrically between the input and output contacts. The T-shaped housing 21 has slot-shaped openings, over which the circuit boards for the PCB connectors 22 . 23 are accessible. Accordingly, an inventive overvoltage protection magazine 1 be plugged onto a printed circuit board in the T-shaped housing. For this, the printed circuit board only needs to be structured accordingly. As in particular in 6c represented, obstruct the surge protection magazines 1 not the wiring of the wire connection contacts of the PCB connectors 22 . 23 , Furthermore, the surge protection magazines can be 1 very easy to retrofit or replace.

LIST OF REFERENCE NUMBERS

1

Overvoltage protection magazine

2

first housing part

3

second housing part

4

latching openings

5

locking lugs

6

circuit board

7

Snubbers

8th

Double-fork contacts

9

first contacts

10

second contacts

11

earth contacts

12

first fork contacts

13

second fork contacts

14

lower edge

15

indentations

16

cutouts

17

flap

18

rib-shaped elements

19

rib-shaped elements

20

Establishment of telecommunications and data technology

21

T-shaped housing

22

PC Board

23

PC Board

24

ground bus

Claims (6)

Overvoltage protection magazine (1) for a device (20) of the telecommunications and data technology, comprising a housing, a printed circuit board (6), a plurality of overvoltage protection elements (7), at least one ground contact (11) and a plurality of interface contacts, by means of which the overvoltage protection elements (7) electrically with the device (20) are connectable, wherein the interface contacts are formed as double contacts, each having a first contact (9) and a second contact (10), wherein the first contact (9) as Printed circuit board contact is formed, which is electrically connected to an overvoltage protection element (7) on the circuit board (6), and the second contact (10) is designed as PCB plug contact, by means of which a printed circuit board of the device (20) is contacted, characterized in that the at least one earth contact (11) protrudes further than the second contacts (10), wherein the housing is formed at least in two parts, wherein a first housing part (2) and a second housing part (3) each rib-shaped elements (18, 19), wherein the rib-shaped elements (18, 19) are arranged offset from one another and are guided past each other. Overvoltage protection magazine according to Claim 1 , characterized in that the first contact (9) of the double contacts is designed as a fork contact. Overvoltage protection magazine according to one of the preceding claims, characterized in that the earth contact (11) is designed as a double contact, wherein a first contact (12) contacts a ground conductor on the circuit board (6) with the overvoltage protection elements (7) and the second contact (13) for contacting a ground terminal of the device (20). Overvoltage protection magazine according to Claim 3 , characterized in that the ground contact (11) is designed as a double fork contact. Overvoltage protection magazine according to one of the preceding claims, characterized in that the second contact (13) of the earth contact (11) is arranged parallel or rotated by 90 ° to the second contacts (10) of the interface contacts. Overvoltage protection magazine according to one of the preceding claims, characterized in that the second contact (13) of the ground contact (11) is guided outside the housing.

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