DE102015100647B4 - PCB with plug contact element - Google Patents

Abstract

Power distributor (31), having at least one printed circuit board (1; 13; 21; 37) inserted in a housing (32), which is equipped with at least one surface-mounted sheet metal part (2; 18; 22) as a plug contact element, the housing ( 32) at least one busbar (12; 40) is integrated with an associated connection element (11; 40, 41) and the inserted printed circuit board (37) via the at least one sheet metal part (2; 18; 22) in a plug-in connection with at least one such connection element ( 11; 40, 41).

Description

The invention relates to a power distributor which has at least one printed circuit board inserted in a housing and equipped with at least one plug contact element.

Power distribution in electrical distributors typically takes place via busbars. If a switching element is represented electronically on a printed circuit board, the challenge is to contact the printed circuit board with busbars (incoming and outgoing) mechanically safely and with little effort.

For this purpose, it is known to attach contact blades in through-hole technology (also known as “Through-Hole Technology”, THT, or “Pin-in-Hole”; PIH) to the circuit board, which can engage in corresponding connection sockets of a respective busbar. The circuit board can also be equipped with press-fit contacts.

It is also known to provide holes with a metallization for a screw connection in the printed circuit board. Taking the circuit board in a sandwich structure with busbars in a screw connection is problematic, however, since the material typically used as the base material for the circuit board, such as FR4 or other epoxy-fiberglass composite material, is noticeably compressible and thus loses contact force with the busbar over time goes. This can lead to a poor electrical connection, with high power dissipation and even a fire. Attempts are made to reduce the compressibility by introducing metallized plated-through holes or "vias" (small holes). However, this is expensive and does not fundamentally solve the problem.

It is also known to provide holes (with a diameter of approx. 10 mm) in the circuit board and to connect busbars to the circuit board via inserts impressed in the holes. For this purpose, contact plates are processed using a stamping process in such a way that round elevations are formed, which come to rest as inserts in the holes. In the soldering process, e.g. MOSFETs are soldered to the inserts and thus the busbar to the circuit board. The disadvantage here is that any force acting on the contact plates acts directly on the soldering point via their leverage. Furthermore, a large solder thickness is necessary to compensate for tolerances with the board, which counteracts the resistance of the solder connection.

Press-in screw sleeves or press-in bolts are also used, but they are very expensive. In addition, the circuit board must meet high tolerance requirements to be able to be pressed in. Because of the leverage, there is a risk that the circuit board will be subjected to high forces.

From the DE 10 2006 056 259 A1 an electrical circuit board with a connection terminal is known. The DE 20 2006 008 439 U1 discloses an electrical contact of a circuit board with a soldered molded part made of sheet metal with a resilient receptacle for a plug-in part. Furthermore describes the DE 4422 787 A1 Pins attached to the surface of printed circuit boards. Furthermore, the EP 0 893 945 A1 a method for producing printed circuit boards, each of which comprises a non-conductive substrate and at least one metal terminal, the substrate comprising at least one cutout which is formed at an edge region of the substrate and penetrates the substrate, the metal terminal thus being attached to the substrate is that the opening is bridged. The US patent applications US 2004/0192097 A1 and US 2015 / 0009607A1 describe a connection between a busbar and a connection contact or a busbar for use in a power distributor.

A major disadvantage of all existing solutions is that the circuit board with its power contacts is accommodated in a housing of a power distributor in such a way that it is screwed to busbars molded in the housing. For reasons of tolerance (e.g. to take account of plastic shrinkage), the contact surfaces are practically never at exactly the same height. If the circuit board is screwed on, this results in permanent mechanical tension in the circuit board, which is much more likely to cause soldering points to tear than with tolerance compensation.

It is the object of the present invention to at least partially overcome the disadvantages of the prior art and in particular to provide an improved option for connecting circuit boards to connectors, in particular high-current connectors, in particular busbars, in power distributors of vehicles, in particular at low cost and / or with a low probability of mechanical failure.

This object is achieved according to the features of the independent claim. Preferred embodiments can be inferred in particular from the dependent claims.

The object is achieved by a power distributor with a printed circuit board or printed circuit board inserted in a housing, which is equipped with at least one surface-mounted sheet metal part as a plug-in contact element, in the housing at least one busbar is integrated with an associated connection element and the inserted printed circuit board is in a plug-in connection with at least one such connection element via the at least one sheet metal part.

Such a plug contact element or plug connection element can be produced with very low material and manufacturing costs. The problems introduced by a screw connection also do not arise.

The sheet metal part is therefore a SMD ("Surface Mounted Device") component or SMT ("Surface Mounted Technology") - suitable. Due to the surface mountability or SMT suitability, it can be assembled on the circuit board together with other SMD components, e.g. in a joint reflow process. A separate fastening process can therefore be dispensed with.

A plug contact can be produced by pushing or plugging a plug contact counter element (e.g. a lamellar contact or a flat plug sleeve) onto the sheet metal part or - mechanically equivalent - by pushing or plugging the sheet metal part into a plug contact counter element. The sheet metal part thus has in particular an area (hereinafter also referred to as “fastening area” without restricting the generality) for fastening to the circuit board and at least one other area (hereinafter also referred to as “contact area” or “plug contact area” without restricting generality) Enabling a plug contact or a plug connection with at least one plug contact counter element. The at least one contact area is exposed on both sides in order to enable the plug-in contact counter-element to be plugged in, and thus also to make contact on both sides, in particular by means of a clamp fit.

The sheet metal part may be designed, for example, as a plug, in particular a built-in plug, or as a part thereof. The plug contact mating element may in particular be designed as a matching socket or coupling or represent a part thereof. The plug contact mating element is also referred to below as a “connection element” without restricting the generality. A connection element in this sense may have a housing or be without a housing.

Due to its SMT soldering to the circuit board, the sheet metal part is sufficiently deformable despite a possibly small sheet thickness and / or with higher insertion forces. In addition, the sheet metal part can be soldered to the printed circuit board over a large area, which enables a high degree of fastening security. Even if the sheet metal part should be torn, there is a current path to the circuit board.

The sheet metal part or its fastening area is connected in particular to a line structure of the printed circuit board via an SMT solder contact. The line structure may have, for example, one or more contact fields or contact pads and / or one or more conductor tracks.

The sheet metal part consists in particular of copper or a copper alloy for high electrical conductivity. The sheet metal part may be silver-plated, tin-plated or galvanized for corrosion protection and / or for particularly safe mechanical and / or electrical contact.

A sheet metal thickness or sheet metal thickness may be 0.4 mm to 1.5 mm, in particular 0.6 mm to 1 mm, in particular 0.8 mm, for example depending on an intended current strength.

It is an embodiment that at least one sheet metal part at least partially covers an edge-side recess or notch in the (unequipped) printed circuit board. As a result, the sheet metal part can be contacted on both sides even if it does not protrude over a, for example, rectangular basic shape of the circuit board.

In general, at least one sheet metal part may not protrude beyond the circuit board or a basic shape of the circuit board, which enables the sheet metal part to be particularly rigid or deformable. Alternatively or additionally, at least one sheet metal part may protrude over the circuit board or a basic shape of the circuit board, which enables a particularly long contact area.

The cutout may be a rectangular cutout, which has the advantage that an associated connection element (e.g. a lamella pack) can be pushed into the cutout up to the stop against the circuit board. In this case in particular, the sheet metal part may be rectangular, which enables the sheet metal part to be produced without waste (e.g. by punching a sheet metal part).

The recess may be dimensioned in such a way that it can receive an associated connection element in a clamping or loose manner. A receptacle may be characterized, for example, by a width of the recess which is 0.5 mm wider than a width of a connection element provided.

Another embodiment is that at least one sheet metal part completely or completely covers an edge-side recess or notch in the (unassembled) printed circuit board. Thereby it is possible in a simple manner to achieve a connection of the area covering the recess that extends over an entire length of the edge of the recess. This in turn enables its particularly high degree of deformation resistance. A particularly deformable further development is achieved in that the sheet metal part also does not protrude beyond the recess.

It is also an embodiment that at least one sheet metal part has a tab-like contact area in which the side edges are also exposed. This means that a connection element can also be attached that laterally surrounds the tab-like plug-in contact area, e.g. a flat plug-in sleeve or a 2.8 cable contact.

The tab-like contact area may protrude into an edge-side recess in the circuit board. The sheet metal part then only partially covers the recess, in particular with gaps on both side edges of the recess. This has the advantage that the recess can serve as a guide and / or stop for a connection element.

The tab-like plug contact area may serve in particular as a control pin for relays and lines in a cable set. The tab-like contact area may protrude beyond the cutout or a side edge of a basic shape of the circuit board, so that a particularly long contact area can be provided.

Another embodiment is that the edge-side recess has a metallization on the surface provided with the associated sheet metal part and the sheet metal part or its fastening area is soldered onto the metallization. This enables a particularly simple and large-area surface mounting. The metallization is therefore designed in particular as a soldering field or soldering pad and may, for example, merge into a conductor track. The metallization may in particular be designed as an edge delimiting the cutout completely (i.e., without any gaps). If the recess is rectangular, the edge may be U-shaped, for example.

It is a further embodiment that at least one sheet metal part is a flat or planar sheet metal part. This can be produced in a particularly simple manner and may make it particularly easy to attach a suitable connection element. A flat sheet metal part is also particularly easy to handle using automatic placement machines and, in addition, cannot tip over while lying in the soldering paste.

It is yet another embodiment that at least one sheet metal part has a sub-area bent up from the printed circuit board as a plug-in contact area. As a result, the sheet metal part can, for example, also be mounted over a printed circuit board that does not have a recess there.

It is also an embodiment that at least one sheet metal part has at least one through-hole pin, which is inserted into a hole in the circuit board. The at least one through-hole pin makes it possible to avoid twisting after the sheet metal part has been placed on ("placement") before subsequent SMT soldering. This also reduces or even completely eliminates the direct transfer of (often one-off) insertion forces to the solder connection or solder joint. For example, the sheet metal part may have more than one push-through pin, e.g. two or three push-through pins. For a force absorption during insertion, it is advantageous that at least one insertion pin is arranged in the insertion direction with respect to a contact area of the sheet metal part.

It is also an embodiment that at least one sheet metal part is surrounded by a housing. As a result, mechanical stress on the sheet metal part after a connection element has been plugged on is reduced or even avoided entirely. The remaining mechanical load when inserting the connection element may in particular be generated by the frictional effect and acts in particular in the direction of insertion. The housing may be fastened to the printed circuit board or formed by a partial area of a housing accommodating the printed circuit board.

Another embodiment is that the printed circuit board is equipped with at least one electronic component that is electrically connected to at least one of the sheet metal parts. This allows the circuit board to take on additional functions in addition to power distribution. The at least one electronic component may be a circuit or part of a circuit. The at least one electronic component is in particular an SMD component for simple and inexpensive production.

The at least one electronic component may in particular be set up to provide a bus interface (e.g. for a LIN ("Local Interconnect Network") bus, a CAN ("Controller Area Network") bus or another field bus), a relay control, to provide electronic switching and safeguarding and / or a diagnostic function.

The circuit board is a circuit board of a power distributor, in particular of on-board networks in motor vehicles.

The object is achieved by a power distributor having at least one in one Housing of the power distribution board inserted as described above. The power distributor can be designed analogously to the circuit board and provides the same advantages.

The circuit board is plugged into the housing. The circuit board is plugged into the electrical power distributor as a "plug-in card". This enables an effective tolerance compensation in a simple manner.

At least one connection element is fastened to the housing, in particular is integrated in the housing, for example cast therein. As a result, the housing can be handled particularly easily. In particular, through the integration into the housing, the at least one connection element can also be fastened in a particularly precise position.

At least one busbar with an associated connection element is integrated into the housing, in particular encapsulated, and the printed circuit board used is in plug-in connection with at least one such connection element via at least one sheet metal part. This enables a mechanically secure connection between the printed circuit board and the busbar that is particularly easy to implement. Especially if a connection element of a busbar is designed as a lamellar contact, a particularly effective tolerance compensation can be achieved.

Another embodiment is that at least one further (in particular differently shaped) connection element is additionally cast into the housing and the inserted printed circuit board is plugged into such a further connection element via at least one other (in particular differently shaped) sheet metal part.

In a method for producing a circuit board as described above, solder paste is applied to a metallization of a circuit board serving as a support area for at least one sheet metal part, at least one sheet metal part is placed on a respective support area covered with the solder paste and the at least one sheet metal part is soldered on in a reflow process. The method thus describes applying the at least one sheet metal part to the circuit board in an SMT process. In particular, a flat shape of the sheet metal part is very favorable for SMT assembly, since such a sheet metal part can be handled by an assembly machine without any problems and cannot tip over while lying in the solder paste.

The method can be designed analogously to the circuit board and produces the same advantages.

In the reflow process, the circuit board can in particular be soldered to further SMD components such as electrical and / or electronic components.

• 1 zeigt in Draufsicht eine Skizze einer noch nicht bestückten Leiterplatte und ein davon noch getrenntes Blechteil;
• 2 zeigt in Draufsicht eine Skizze der nun bestückten Leiterplatte aus 1;
• 3 zeigt als Schnittdarstellung in Seitenansicht die bestückte Leiterplatte aus 2 vor Verbindung mit einer Stromschiene;
• 4 zeigt als Schnittdarstellung in Seitenansicht die bestückte Leiterplatte aus 2 nach Verbindung mit der Stromschiene;
• 5 zeigt als Schnittdarstellung in Draufsicht die mit der Stromschiene verbundene, bestückte Leiterplatte in detaillierterer Ansicht;
• 6 zeigt als Schnittdarstellung in Seitenansicht die mit der Stromschiene verbundene, bestückte Leiterplatte in detaillierterer Ansicht;
• 7 zeigt in Draufsicht eine Skizze einer weiteren noch nicht bestückten Leiterplatte und ein weiteres davon noch getrenntes Blechteil sowie einen Ausschnitt aus der dann bestückten Leiterplatte;
• 8 zeigt in einer Ansicht von schräg vorne einen Stromverteiler;
• 9 zeigt in einer Ansicht von schräg hinten den Stromverteiler mit geöffneter Rückseite mit einer in das Gehäuse eingesetzten Leiterplatte;
• 10 zeigt in einer Ansicht von schräg vorne den Stromverteiler ohne Gehäuse; und
• 11 zeigt in einer Ansicht von schräg hinten den Stromverteiler ohne Gehäuse.

The properties, features and advantages of this invention described above and the manner in which they are achieved will become clearer and more clearly understandable in connection with the following schematic description of an exemplary embodiment which is explained in more detail in connection with the drawings.

• 1 shows a plan view of a sketch of a not yet populated circuit board and a sheet metal part still separated therefrom;
• 2 shows a top view of a sketch of the now assembled printed circuit board 1 ;
• 3 shows the assembled printed circuit board as a sectional illustration in side view 2 before connection to a power rail;
• 4th shows the assembled printed circuit board as a sectional illustration in side view 2 after connection to the busbar;
• 5 shows, as a sectional view in plan view, the assembled printed circuit board connected to the busbar in a more detailed view;
• 6th shows, as a sectional illustration in side view, the assembled printed circuit board connected to the busbar in a more detailed view;
• 7th shows a plan view of a sketch of a further not yet populated printed circuit board and a further sheet metal part still separated from it, as well as a section from the then populated printed circuit board;
• 8th shows a power distributor in a view obliquely from the front;
• 9 shows, in a view obliquely from the rear, the power distributor with the rear side open with a printed circuit board inserted into the housing;
• 10 shows in an oblique front view the power distributor without housing; and
• 11 shows the power distributor without housing in an oblique view from behind.

1 shows a plan view of a not yet populated printed circuit board 1 and a sheet metal part that is still separate from it 2 . The circuit board 1 has a plate-shaped base body 3 from FR4, for example, with a rectangular basic shape. There is a line structure on the flat side shown 4th in the form of a metallization, of which two sections are shown here. In both sections of the governance structure 4th goes one conductor at a time 5 into a u-shaped area 6th about that as the edge of an associated rectangular recess or Notch 7th the circuit board 1 is trained. The notch 7th has a width b on.

The sheet metal part 2 is a flat, rectangular sheet metal part and may have been made, for example, by simply punching out a sheet metal sheet. The sheet metal part 2 may be made of copper or a copper alloy. It may have been silver-plated, tinned, galvanized or surface treated in some other way.

For fastening the sheet metal part 2 using a surface mount or SMT process on the circuit board 1 first apply solder paste to the u-shaped areas 6th applied and then a respective sheet metal part 2 on the U-shaped areas covered with the solder paste 6th hung up. This can also be carried out with further SMD components, for example with at least one electrical and / or electronic SMD component 8th to 10 (please refer 2 ). The u-shaped areas 6th thus serve as support areas for the management structure 4th for at least one sheet metal part 2 .

The following are the sheet metal parts 2 and the other SMD components 8th to 10 Soldered by means of a reflow process, for example by passing through a reflow oven. This makes the sheet metal parts 2 firmly with the respective U-shaped area 6th the governance structure 4th soldered, and the SMD components 8th to 10 with other parts or sections (not shown) of the line structure 4th .

The SMD components 8th to 10 are about the governance structure 4th with at least one of the sheet metal parts 2 electrically connected. The SMD components 8th to 10 can be set up, for example, to provide a bus interface, relay control, electronic switching and safeguarding and / or a diagnostic function.

The sheet metal parts 2 cover the notches 7th completely and thus extend to the edge of the respective notch 7th or the rectangular basic shape of the now assembled printed circuit board 1 . The sheet metal parts 2 thus have an edge-side, U-shaped fastening area, which is connected to the line structure 4th is soldered, and one is the notch 7th overlapping, flat side on both sides free contact area. The sheet metal parts 2 can therefore serve as plug contact elements, as will be explained in more detail below. The sheet metal parts 2 may be surrounded by a housing (not shown), in particular a connector housing.

3 shows as a sectional view through a notch 7th the assembled circuit board in side view 1 (without the components 9 and 10 ) before connecting to a power rail 12th . The sheet metal parts 2 serve as plug contact elements for connection to a respective lamellar contact 11 a busbar 12th . The conductor rail 12th like with one or more lamellar contacts 11 be provided.

The lamellar contacts 11 can be, for example, "dLAM-DRÄXLMAIER lamella contacts" from the DRÄXLMAIER Group. Such lamellar contacts 11 provide a scalable contact system for high currents, low contact resistance and small installation spaces.

The lamellar contacts 11 can serve as connection elements as such or in connection with an associated housing (then in particular can also be referred to as “connection sockets”). In particular, they can be designed as laminated cores.

4th shows the assembled printed circuit board as a sectional view in side view 1 after mating engagement with the lamellar contact 11 . This is the lamellar contact 11 into the notches 7th introduced (or vice versa) so that the contact area of the sheet metal part 2 with its free edge first into the lamellar contact 11 is plugged in. Through the two arms of the lamellar contact 11 becomes the sheet metal part 2 held in a clamp fit. For easy introduction of the lamellar contact 11 into a corresponding notch 7th is the width b the notch 7th slightly wider than a width of the lamellar contact 11 , for example about 0.5 mm wider.

Due to the three-sided fastening of the sheet metal part 2 Over the entire length of the U-shaped (support) area 6 is the notch 7th overlapping contact area of the sheet metal part 2 very firm and stiff (even if the sheet metal part 2 is comparatively thin), so that a plug connection can be carried out safely. The sheet metal part 2 does not deform or does not deform significantly.

5 shows a sectional view in plan view of one with two busbars 12th connected, assembled printed circuit board 13th in a more detailed view. The cut here runs parallel to the circuit board 13th on an outside of the now two lamellar contacts 11 . The components 8th to 10 are not shown.

The lamellar contacts 11 are surrounded by a housing that is open at the front in the direction of insertion (hereinafter referred to as “socket housing” 14 without loss of generality). The socket housing 14th are in respective, sheet metal parts 18th (please refer 6th ) surrounding housing (hereinafter referred to as “connector housing” 15 without loss of generality). The use of the housing 14th and 15th causes the inserted lamellar contacts 11 not against the sheet metal parts 18th can twist and therefore cannot exert leverage that a Solder connection of the sheet metal parts 18th with the governance structure 4th could solve. On the sheet metal parts 18th essentially only acts when the lamellar contacts are inserted 11 force exerted.

The socket housing 14th and / or the connector housing 15th can be done directly on the circuit board 13th or on the power rail 12th be attached. The socket housing 14th or the connector housing 15th can alternatively be used, for example, as area (s) of a common housing for the entire circuit board 13th be trained.

In the circuit board 13th is also spaced from all three sides of the notches 7th (not shown) a small hole each 16 intended. In the holes 16 can in the manner of a push-through pin 17th (see also 6th ) shaped areas of a sheet metal part 18th be plugged in. They do not need to be soldered there. This creates a form fit of the sheet metal part 18th with the circuit board 13th which causes a twisting of the sheet metal part 2 prevented during surface mounting and / or a force absorption when inserting the lamellar contact 11 on the sheet metal part 2 causes. Such a sheet metal part 18th like, for example, like the sheet metal part 2 be designed, but to provide each of the through pins 17th a corresponding extension 19th have, the end bending area as a push-through pin 17th serves (see 6th ).

Alternatively, only one, two or more than three holes can be played 16 per notch 7th and / or one, two or more than three push-through pins 17th per sheet metal part 18th to be available.

6th shows the components 5 as a sectional view through a lamellar contact 11 in side view. The sheet metal part 18th shows here one of the on the circuit board 13th overlying, but not necessarily soldered, extensions 19th , the end in the form of a push-through pin 17th is turned and through an associated hole 16 in the circuit board 13th is plugged in.

7th shows a plan view of a further not yet populated printed circuit board 21st and another sheet metal part that is still separate from it 22nd . The sheet metal part 22nd is at a notch 23 to be attached using a surface mount technique, similar to the sheet metal part 2 at the notch 7th . However, the notch likes 23 have a different shape and / or size than the notch 7th , e.g. here a larger width.

The sheet metal part 22nd has a U-shaped fastening area 24 on, the one for SMT mounting on one of the notches 23 U-shaped (support area 6b the governance structure 4th is provided. The attachment area 24 has a base portion 25th and two legs extending therefrom at the end 26th on. A tab-shaped plug contact area extends centrally from the base section 27 longer than the thighs 26th . This results in two parallel gaps 28 between the plug contact area 27 and a respective leg 26th .

After the SMT soldering is as in the dashed section A. shown the sheet metal part 22nd with its attachment area 24 so on the u-shaped support area 6b the governance structure 4th attached that the tab-shaped contact area 27 into the notch when viewed from above 23 protrudes. It even protrudes over the notch 23 or the rectangular shape of the circuit board 1 out.

8th shows a power distributor in a view obliquely from the front 31 . The power distributor 31 has a plastic housing 32 on, its open back with a lid 33 is covered. In the case 32 are several implementation or reception areas 34 to 36 shaped into which a respective external power connection (not shown) can be inserted. So like yourself in the recording area 34 from the outside a bus connection and into the recording area 36 Use a high-current line, in particular a busbar, from the outside. The recording areas 34 to 36 for this purpose have respective electrical contacts that lead to a connector 39 or to connection elements 40 and 41 belong (see 10 and 11 ). The connection elements 40 and 41 are with the associated recording areas 35 to 36 positively cast.

9 shows the power distributor 31 in a view from diagonally behind with the cover missing 33 with one in the case 32 inserted circuit board 37 . The circuit board 37 is on tours 38 of the housing 32 in the housing 32 been plugged in.

10 shows the power distributor 31 without housing 32 and without a lid 33 in a view from diagonally behind. 11 shows the power distributor 31 without housing 32 and without a lid 33 in an oblique view from the front. The circuit board 37 is shown here without further SMD components and without a line structure.

The circuit board 37 has three sheet metal parts serving as plug contact elements, namely two sheet metal parts 22nd and a sheet metal part 2 . In addition, the connector is 39 , which has several contact pins, by means of PIH soldering to that of the circuit board 37 connected.

Furthermore, the three connection elements 40 and 41 shown which in the housing 32 are potted and which the sheet metal elements 2 or. 32 contact by means of a plug connection.

The connection element 40 is designed as a busbar on which a lamellar contact 11 is attached. The sheet metal part 2 is by an insertion movement of the circuit board 37 in the housing 32 into the lamellar contact 11 been plugged in. The two connection elements 41 are designed as push-on sleeves or push-on contacts. The tab-like contact areas 27 the sheet metal parts 22nd are due to the insertion movement of the circuit board 37 in the housing 32 in a respective connection element 41 been plugged in. The result of the potting of the connection elements 40 and 41 reached exact position to the channels 38 of the housing 32 enables easy assembly. In addition, due to the nature of the circuit board 37 as a "plug-in card" enables reliable tolerance compensation of the contacts. Bending forces are applied to the sheet metal parts 2 and 22nd practically not exercised.

The connection elements 40 and 41 protrude with their sheet metal parts 2 or. 32 facing away sections (e.g. the busbar 40 as such) through the housing 32 in the recording areas 36 or. 35 and represent their electrical contacts. The pins of the plug element 39 protrude as electrical contacts directly into the receiving area 35 .

It goes without saying that the present invention is not restricted to the exemplary embodiment shown.

For example, at least one sheet metal part may have a partial area bent up from the printed circuit board as a plug contact area.

In general, “a”, “one” etc. can be understood as a singular or plural number, in particular in the sense of “at least one” or “one or more” etc., as long as this is not explicitly excluded, for example by the expression “exactly a "etc.

A number can also include exactly the specified number as well as a customary tolerance range, as long as this is not explicitly excluded.

List of reference symbols

1

Circuit board

2

Sheet metal part

3

Base body

4th

Management structure

5

Conductor track of the line structure

6th

U-shaped support area of the line structure

6b

U-shaped support area of the line structure

7th

Notch

8th

SMD component

9

SMD component

10

SMD component

11

Lamellar contact

12th

Busbar

13th

Circuit board

14th

Socket housing

15th

Connector housing, housing

16

hole

17th

Through pin

18th

Sheet metal part

19th

Extension of the sheet metal part

21

Circuit board

22nd

Sheet metal part

23

Notch

24

Attachment area

25th

Base section

26th

leg

27

Plug contact area

28

gap

31

Power distributor

32

casing

33

cover

34

Receiving area (for connector)

35

Receiving area (for push-on sleeve)

36

Receiving area (for busbar)

37

Circuit board

38

guide

39

Connectors

40

Connection element (designed as a busbar)

41

Connection element (designed as a push-on sleeve)

A.

Cutout

b

Notch width

Claims (11)

Power distributor (31), having at least one printed circuit board inserted in a housing (32) (1; 13; 21; 37), which is equipped with at least one surface-mounted sheet metal part (2; 18; 22) as a plug contact element, with at least one busbar (12; 40) with an associated connection element (11 ; 40, 41) is integrated and the inserted printed circuit board (37) is in a plug-in connection with at least one such connection element (11; 40, 41) via the at least one sheet metal part (2; 18; 22). Power distributor (31) Claim 1 , wherein at least one sheet metal part (2; 18; 22) covers an edge-side notch (7; 23) in the circuit board (1; 37) over the entire surface. Power distributor (31) Claim 1 wherein at least one sheet metal part (22) has a tab-like plug contact area (27) which protrudes into an edge-side notch (23) in the circuit board (21; 37). Power distributor (31) according to one of the Claims 2 or 3 , wherein the edge-side notch (7; 23) on the surface provided with the associated sheet metal part (2; 18; 22) has a metallization (4) and the sheet metal part (2; 18; 22) on the metallization (4, 6; 4 , 25) is soldered on. Power distributor (31) according to one of the Claims 2 to 4th , wherein at least one sheet metal part (2; 18; 22) is a flat sheet metal part. Power distributor (31) according to one of the preceding claims, wherein at least one sheet metal part has a portion bent up from the printed circuit board as a plug contact area. Power distributor (31) according to one of the preceding claims, wherein at least one sheet metal part (18) has at least one push-through pin (17) which is inserted into a hole (16) in the printed circuit board (13). Power distributor (31) according to one of the preceding claims, wherein at least one sheet metal part (18; 2, 22) is surrounded by a plug housing (15). Power distributor (31) according to one of the preceding claims, wherein the circuit board (1; 13; 21; 37) is equipped with at least one electronic component (8-10) which is electrically connected to at least one of the sheet metal parts (2; 2, 22) is, wherein the at least one electronic component (8-10) is set up to - a bus interface, - a relay control, - an electronic switching and safeguarding and / or - provide a diagnostic function. Power distributor (31) according to one of the preceding claims, wherein the at least one busbar (41) with the associated connection element (11) is cast into the housing (32). Power distributor (31) according to one of the preceding claims, wherein at least one further connection element (40) is integrated into the housing (32) and the printed circuit board (37) used is plugged into at least one such further connection element (22) via at least one other sheet metal part (22). 40) stands.

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