DE202020105369U1 - Bus distributor with a power input port and a power output port - Google Patents

Abstract

Bus distributor with a housing 1, with slots arranged on the outside of the housing, having: at least one bus connection port (3,4) for connecting a data bus, several data ports (2), each for connecting an actuator or sensor, and a power supply port (5) for supplying electrical power Power, wherein a printed circuit board (14) arranged in the housing connects contact elements of the at least one bus connection port (3,4) to contact elements of the data port (2) and contact elements (7) of the power supply port (5) to contact elements of the data port (2) with conductor tracks, characterized in that characterized in that a slot forms a current discharge port (6) which has contact elements (8) which are electrically conductively connected to the contact elements (7) of the current supply port (5) with grid bars (10, 10', 10").

Description

field of technology

• zumindest einen Busanschlussport zum Anschließen eines Datenbus,
• mehrere Datenports jeweils zum Anschluss eines Aktors oder Sensors und
• einen Stromzuleitungsport zur Zufuhr elektrischer Leistung,
• wobei eine im Gehäuse angeordnete Leiterplatte mit Leiterbahnen Kontaktelemente des zumindest einen Busanschlussports mit Kontaktelementen des Datenports und Kontaktelemente des Stromzuleitungsports mit Kontaktelementen des Datenports verbindet.

The invention relates to a bus distributor with a housing with slots arranged on the outside of the housing, having:

• at least one bus connection port for connecting a data bus,
• several data ports each for connecting an actuator or sensor and
• a power supply port for supplying electrical power,
• wherein a circuit board arranged in the housing with conductor tracks connects contact elements of the at least one bus connection port to contact elements of the data port and contact elements of the power supply port to contact elements of the data port.

State of the art

Such a bus distributor is known on the market. The well-known bus distributor has an essentially cuboid housing with a housing top on which there are a large number of slots. Two slots form bus connection ports so that a data bus can be looped through the bus distributor. Several additional slots form data ports to which actuators or sensors can be connected. Furthermore, a power supply port is provided, to which a power supply line can be connected in order to supply the bus distributor or the actuators or sensors connected to the bus distributor with electrical power.

Summary of the Invention

The invention is based on the object of further developing the previously described bus distributor in a way that is advantageous in terms of use.

The object is achieved by the invention specified in the claims. The subclaims not only represent advantageous developments of the technical solution specified in the main claim, but also independent solutions to the problem.

First and foremost, it is proposed that a current discharge port be provided in addition to the current supply port and that the contacts of the two ports be looped through. By connecting the contact elements of the power supply port to the contact elements of the power discharge port with grid bars, high currents can be transmitted from the power supply line to a current discharge line. As a result, not only the data bus can be looped through the bus distributor, but also the power supply. In contrast to the prior art, a chain-like topology (daisy chain) can now be provided not only with regard to the data bus but also with regard to the power supply. The printed circuit board has traces that are only a few tenths of a millimeter thick and cannot transfer large currents. The cross-section of the lattice bars is many times larger than that of the printed circuit board conductors. For example, while a maximum of two amperes can be transmitted via the conductor tracks of the circuit board, up to 10 amperes or 20 amperes or more than 20 amperes can be transmitted via the grid bars of the stamped grid, so that several bus distributors chained in series can be supplied with electrical power with one power supply line . The lattice webs are preferably formed by a punched lattice.

The power supply port and the power drain port preferably each have at least five contact elements. Two of these are electrically conductively connected to a power-transmitting grid bar. For this purpose, the lattice bar can have two openings into which the connection ends of two contact elements can reach. The lattice webs can be frictionally connected to the connection ends. They can be connected to the terminal ends and/or to conductor tracks on the printed circuit board via a crimp connection or a soldered connection. However, the connection ends of the contact elements of the power supply port are preferably connected to the conductor tracks of the printed circuit board. The conductor tracks are connected to contact elements of the data ports. Otherwise, the contact elements of the data ports are connected to the contact elements of the bus connection ports in a known manner. The contact elements of the bus connection ports can also be connected to the contact elements of the data ports with the interposition of an electronic circuit. A third grid web can have only one opening at each of its two ends, into which a connection end of a contact element of a ground contact is inserted.

The stamped grid has three grid webs that essentially run side by side at a constant distance. The grid bars can have a V-shaped profile. During their production, the lattice bars are punched out of a sheet metal strip, with the individual lattice bars being connected to one another with connecting bars. The stamped grid can be embedded in a plastic compound. When embedding in the plastic mass or immediately before embedding in the plastic mass, the connecting webs can be severed. The stamped grid can extend in one plane. This plane preferably runs parallel to a top side of the housing in which the slots are located.

The printed circuit board can extend over the entire cross-sectional area of the housing. It has electrically conductive traces on at least one of its broad side surfaces, with which contact elements of the individual slots are connected to one another or to electronic elements on the printed circuit board. The printed circuit board can have a preferably circular opening through which the contact elements of the current discharge port protrude freely. The contact elements of the power dissipation port cannot be connected to conductor tracks on the printed circuit board.

Exemplary embodiments of the invention are explained below with reference to the accompanying drawings. Show it:

character list

• 1 eine perspektivische Darstellung eines Ausführungsbeispiels der Erfindung,
• 2 eine Draufsicht auf das in 1 dargestellte Ausführungsbeispiel,
• 3 eine Darstellung gemäß 2 jedoch mit einem Aufbruch im Bereich des Stromzuleitungsports (5) und des Stromableitungsports (6),
• 4 einen Schnitt gemäß der Linie IV-IV in 2 und
• 5 eine Explosionsdarstellung der wesentlichen Elemente des Busverteilers eines zweiten Ausführungsbeispiels.

The invention is explained in more detail below using exemplary embodiments. Show it:

• 1 a perspective view of an embodiment of the invention,
• 2 a top view of the in 1 illustrated embodiment,
• 3 a representation according to 2 but with a break in the area of the power supply port (5) and the power output port (6),
• 4 a cut according to the line IV-IV in 2 and
• 5 an exploded view of the essential elements of the bus distributor of a second embodiment.

Description of the embodiments

The bus distributor shown in the figures has an essentially rectangular housing 1 with two broad sides. Four slots are located in two rows on a front broad side. The slots arranged on the broad side contain a bus connection port 3 and a bus connection port 4. A bus line of a data bus can be connected to the two bus connection ports 3, 4, via which data can be transmitted.

Four slots form data ports 2. Peripheral devices such as actuators or sensors that are used in automation technology can be connected to these data ports 2 . The peripheral devices are supplied with electrical power via data port 2. The peripheral devices also communicate via the data port 2 via a data bus connected to the bus connection port 3, 4, for example with a process control device.

A power supply port 5 has contact elements 7 which have connection ends which can be brought into contact with mating contacts of a plug of a power supply, not shown in the drawings, so that electrical power can be transmitted to the contact elements 7 via a power supply cable. The contact elements 7 are inserted into openings in a printed circuit board 14 which is located in the housing 1. The printed circuit board 14 has conductor tracks (not shown) which are connected to the contact elements 7 in order to transmit electrical power to the contact elements of the data ports 2 . The peripheral devices can be supplied with electrical power via the contact elements of the data ports 2 .

On the printed circuit board 14 conductor tracks (not shown) are also shown, which connect the contact elements of the data ports 2 with contact elements of the bus connection ports 3,4. In addition, electronic components such as integrated circuits or the like can be arranged on the printed circuit board, which are also connected to the contact elements of the bus connection ports 3 , 4 or of the data port 2 . Active electronic components can also be supplied with electrical power via the contact elements 7 of the power supply port.

the 3 shows a stamped grid 9 arranged between the printed circuit board 14 and contact carriers 17, which consists of three grid bars 10,10',10". The individual grid bars 10,10',10" have at least one opening 12 at both ends, through which a middle section of the contact element 7 is pushed through. The section of the contact element 7 that is inserted through the opening 12 has ribs and grooves that run in its extension direction and are arranged over the entire circumference of the contact element 7 . The ribs can be sharp-edged in order to cut into the openings 12 in order to produce a mechanically strong and electrically conductive contact with the grid web 10, 10', 10".

The contact elements 7 of the power supply ports 5 are connected to the lead frame 9 with contact elements 8 of a power dissipation port 6 . The contact elements 8 of a current discharge port 6 also have the ribs and grooves described above, which are inserted in the openings 12 in a mechanically fixed manner and with electrically conductive contact.

The stamped grid 9 runs in a plane which runs parallel to the plane of extension of the printed circuit board 14 and which is spaced apart from the printed circuit board 14 . The contact elements 8 protrude through an opening 16, which has a circular outline without touching the circuit board 14 through the circuit board 14.

Spacer elements 18 can be provided, which are arranged between circuit board 14 and the housing. The spacer elements 18 can be made of the same material as the contact carrier 17 . The spacer elements 18 prevent the stamped grid 9 from touching the printed circuit board 14 .

the 3 shows that 2 grid bars 10,10" are each electrically conductively connected to two contact elements 7. The grid bars 10,10" are connected to the two power-transmitting contact elements 7. The lattice web 10' is connected to only one contact element 7 in each case. A ground contact can be connected between the power supply port 5 and the power discharge port 6 via the grid web 10'.

During their production, the lattice webs 10, 10', 10" are connected to one another via webs 13 (see 5 ). These webs 13 are severed after assembly of the stamped grid 9, ie after attachment to the contact elements 7.8. The housing and in particular the lattice webs 10, 10′, 10″ can then be cast with a casting compound, in particular a plastic compound.

That in the 5 illustrated embodiment of the stamped grid 9 differs from that in FIG 3 illustrated embodiment of the stamped grid 9 essentially only in relation to the shape of the holes 12 having ends.

The invention relates in particular to a plurality of the bus distributors described above, the bus distributors being linked linearly or in some other way. A bus line leads to the bus connection port 3 of a first bus distributor. A bus line connected to bus connection port 4 there leads to a second bus distributor. The first bus distributor is powered with a power line, a plug of the power line being connected to the male power line port 5 . The contact elements 7 of the power supply port 5 are electrically conductively connected to the contact elements 8 of the power supply port 6 via the grid webs 10,10',10". The contact elements 8 of the power supply port 6 of the first bus distributor are connected to the contact elements 7 of a power supply port 5 of the second distributor connected.

The second bus distributor is connected to a third bus distributor in an analogous manner via a bus line and a power line. In this way, almost any number of bus distributors can be connected to one another in the form of a chain.

At least some of the data ports 2 of the bus distributors are connected to field devices that are supplied with electrical power via the power lines. The field devices can communicate with a process controller via the bus line.

The above statements serve to explain the inventions covered by the application as a whole, which also independently develop the state of the art at least through the following combinations of features, whereby two, several or all of these combinations of features can also be combined, namely:

All disclosed features are essential to the invention (by themselves, but also in combination with one another). The disclosure of the application also includes the disclosure content of the associated/attached priority documents (copy of the previous application) in full, also for the purpose of including features of these documents in claims of the present application. The subclaims, even without the features of a referenced claim, characterize with their features independent inventive developments of the prior art, in particular for making divisional applications on the basis of these claims. The invention specified in each claim can additionally have one or more of the features specified in the above description, in particular with reference numbers and/or specified in the list of reference numbers. The invention also relates to configurations in which individual features mentioned in the above description are not implemented, in particular if they are clearly superfluous for the respective intended use or can be replaced by other technically equivalent means.

Reference List

1

casing

2

data port

3

bus connection port

4

bus connection port

5

power supply port

6

power dissipation port

7

contact element

8th

contact element

9

punched grid

10, 10', 10"

lattice bar

11,11', 11"

end of contact

12

opening

13

connecting bar

14

circuit board

15

housing cover

15'

top

16

opening

17

contact carrier

18

spacer element

Claims (14)

Bus distributor with a housing 1, with slots arranged on the outside of the housing, having: at least one bus connection port (3,4) for connecting a data bus, several data ports (2), each for connecting an actuator or sensor, and a power supply port (5) for supplying electrical power Power, wherein a printed circuit board (14) arranged in the housing connects contact elements of the at least one bus connection port (3,4) to contact elements of the data port (2) and contact elements (7) of the power supply port (5) to contact elements of the data port (2) with conductor tracks, characterized in that characterized in that a slot forms a power dissipation port (6) which has contact elements (8) which are electrically conductively connected to the contact elements (7) of the power supply port (5) with grid bars (10, 10', 10"). Bus distributor after claim 1 , characterized in that the grid bars (10, 10', 10"), the contact elements (7) of the power supply port (5) or the contact elements (8) of the power discharge port (6) are connected to conductor tracks of the circuit board (14). Bus distributor according to one of the preceding claims, characterized in that a grid web (10,10') transmitting electrical power is connected to two contact elements (7,8) of the power supply port (5) or power output port (6) and that one on one grid bar (10") lying at neutral potential is connected to a contact element (7, 8) of the power supply port (5) or power drain port (6). Bus distributor according to one of the preceding claims, characterized in that the stamped grid (9) has three grid webs (10, 10', 10") which run next to one another at a constant distance and which are embedded in a plastic mass. Bus distributor according to one of the preceding claims, characterized in that the grid webs (10, 10', 10") have openings (12) into which the connecting ends of contact elements (7, 8) are inserted. Bus distributor according to one of the preceding claims, characterized in that the punched grid (9) has grid webs (10, 10', 10") running in a V-shape. Bus distributor according to one of the preceding claims, characterized in that the connecting webs (13) connecting the grid webs (10, 10', 10") to one another are severed during manufacture. Bus distributor according to one of the preceding claims, characterized in that the grid webs (10, 10', 10") extend in a plane which extends essentially parallel and at a distance from a housing top (15') in which the slots are arranged. Bus distributor according to one of the preceding claims, characterized in that a broad side surface of the printed circuit board (14) rests on spacer elements (18) with which the printed circuit board (14) is held at a distance from the grid webs (10, 10', 10"), It is provided in particular that the spacer elements (18) are formed from the same material as contact carriers (17) of the power supply port (5) or power drain port (6). Bus distributor according to one of the preceding claims, characterized in that at least four data ports (2) are provided. Bus distributor according to one of the preceding claims, characterized in that the grid webs (10, 10', 10") are arranged in a parallel plane to the printed circuit board (14) at a distance from the printed circuit board (14). Bus distributor according to one of the preceding claims, characterized in that the circuit board (14) has an opening (16) through which the contact elements (8) of the current discharge port (5) protrude freely. Bus distributor according to one of the preceding claims, characterized in that the grid webs (10, 10', 10") are formed by a stamped grid (9). Bus distributor with a power supply port and a power output port marked by one or more of the characterizing features of one of the preceding claims.

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