DE102019102155A1 - Busbar arrangement - Google Patents

Abstract

The invention relates to a busbar arrangement 400 with a first busbar 100a with a first surface 401, a second surface 402a opposite the first surface 401a, and a first end 103a, on which a first contact element 200a is arranged on the first surface 401a; a second busbar 100b having a first surface 401b, a second surface 402b opposite the first surface 401b, and a second end 103b on which a second contact element 200b is arranged on the first surface 401b, the second surface 402a being opposite the first busbar 100a is arranged to the second surface 402b of the second busbar 100b; wherein the first contact element 200a is electrically and mechanically connected to the first busbar 100a and the second contact element 200b is electrically and mechanically connected to the second busbar 100b, the first end 103a and the second end 103b being arranged flush with one another.

Description

The invention relates to a busbar arrangement.

Busbars can be used in vehicles to transmit electrical energy or power. High currents can be conducted through this. The busbars can be part of a circuit. For example, the busbars are connected between a positive pole and a negative pole of a battery and a consumer.

An environment of such busbars can place demands on electromagnetic compatibility, or EMC for short. For example, electrical lines in a vehicle should not influence surrounding lines. EMC protection can be very time-consuming.

It is an object of the invention to demonstrate an advantageous concept for a busbar arrangement.

According to one aspect of the invention, the object is achieved by a busbar arrangement. The busbar arrangement comprises a first busbar with a first surface, a second surface opposite the first surface, and a first end, on which a first contact element is arranged on the first surface, and a second busbar with a first surface, opposite the first surface second surface, and a second end on which a second contact element is arranged on the first surface, the first busbar with the second surface of the first busbar being arranged opposite to the second surface of the second busbar. The first contact element is electrically and mechanically connected to the first busbar and the second contact element is electrically and mechanically connected to the second busbar. The first end and the second end are arranged flush with each other.

A busbar can be a non-flexible line. A conductor rail can be a flat conductor. A conductor rail can differ in cross-section from a round conductor. A busbar can be used in a vehicle to transmit electrical energy. In particular, a busbar arrangement with two busbars can be used for a power supply to an electric vehicle, but also in hybrid vehicles or as a battery line in conventional commercial vehicles and motor vehicles.

The first busbar can be arranged parallel to the second busbar. The first contact element and the second contact element can be arranged in the region of the respective end of the busbars or at any point on the busbar. The first contact element and the second contact element can form an electrical connection of the busbars.

Every busbar generates an electromagnetic field when a current flows through it. In the area of the ends of the busbars, contact elements can have an influence on the electromagnetic fields if they protrude beyond the busbars. The arrangement of the busbars with flush ends and the arrangement of the contact elements on the surfaces of the busbars, in particular on the surfaces of the busbars, reduce electromagnetic fields at the end of the busbar arrangement. The contact elements can lie to each other. The first busbar and the second busbar run directly one above the other.

In one configuration, the first contact element is arranged flush with the first end of the first busbar and the second contact element is arranged flush with the second end of the second busbar.

This allows mating contacts to be inserted into the contact elements, the cross section of which is thicker than the height of the contact elements. The counter contacts are therefore not on the busbars. Since the contact elements do not protrude beyond the busbars, the contact elements do not generate uneven electromagnetic fields that could cause interference signals. The contact elements therefore close at the end with the busbars. However, this can also be in a different position on the rail.

In one configuration, the first contact element and the second contact element are arranged mirror-symmetrically to one another, a mirror plane running between the first busbar and the second busbars.

The first contact element and the second contact element lie opposite on different sides of the busbar arrangement, in particular in a center of the busbar arrangement flush with the ends of the busbars.

In one configuration, the first contact element and the second contact element are arranged axially symmetrically with respect to one another, an axis of symmetry lying along the busbars centrally between the first end and the second end.

The first contact element and the second contact element lie on different ones Sides of the busbar arrangement offset to a center of the busbars, in particular in each case on a lateral edge of the busbar arrangement flush with the ends of the busbars and flush with an edge of the busbar on which the contact element is arranged. A flashover can be prevented by the large distance between the contact elements, as can a short circuit due to a leakage current.

In one configuration, the first busbar has a first circumferential insulation and the second busbar has a second circumferential insulation. The first busbar is spaced from the second busbar by the first insulation and the second insulation.

The first insulation can extend around the first busbar. The second insulation can extend around the second busbar. The insulation can have a thickness of 1 mm or 1.5 mm, for example. In the case of the busbar arrangement, the first busbar and the second busbar are then spaced apart from one another by the first insulation and the second insulation, for example by 2 mm or 3 mm. In particular, the distance between the first busbar and the second busbar is 3 mm or less.

In one configuration, the first insulation is interrupted in the area of the first contact element on the first surface of the first busbar. The second insulation is interrupted in the area of the second contact element on the first surface of the second busbar.

Electrical contacting of the first contact element with the first conductor rail and electrical contacting of the second contact element with the second conductor rail can take place through a stripped area. In this case, the first contact element can be in electrical contact with a conductive surface of the first busbar and the second contact element can be in electrical contact with a conductive surface of the second busbar. The insulation can only be removed in the area in which the contact element is arranged.

In one configuration, the busbar arrangement comprises a third contact element which is electrically and mechanically arranged on the first surface of the first busbar flush with the first end and a fourth contact element which is electrically and mechanically arranged on the first surface of the second busbar flush with the second end is.

The third contact element and the fourth contact element can each be an additional contact element for the first busbar or second busbar. The first and the third contact element can be arranged symmetrically on the first busbar. The second and the fourth contact element can be arranged symmetrically on the second busbar. All four contact elements can be arranged mirror-symmetrically and axially. In this way, additional mating contacts can be connected to the respective busbar. This can increase, in particular double, a possible maximum current to be transmitted.

In one configuration, the contact elements are set up to make a mating contact in order to make electrical contact with the respective busbar.

A mating contact can be a plug contact or a socket contact. This can make it easier to connect a line to the busbar arrangement.

In one embodiment, the first contact element and the second contact element are flat contacts or contact sleeves.

A flat contact has a greater length and / or width than a height, the height denoting the extent of the contact element perpendicular to the busbar. This can reduce the installation space of the busbar arrangement.

In one configuration, the first contact element is connected to the first busbar via a first bimetal connector and / or the second contact element is connected to the second busbar via a second bimetal connector. This is especially necessary if the track is made of aluminum.

A bimetal connector can be a bimetal tab. A bimetal can comprise a metal part that is made from two different metals. In particular, a bimetallic connector is a tab, the opposite ends of which consist of different metals. This can facilitate contact between different surfaces. This can make it easier to deal with an oxide layer on a metal to be contacted, particularly in the case of integral connections between aluminum and copper. An electrochemical voltage potential can be limited to the connection area. The bimetallic connector can have zinc, tin, silver, nickel, lacquer, for sealing or extrusion coating or sealed housings as sealing systems.

In one configuration, the first bimetallic connector and the second bimetallic connector have a first metal from which the first busbar and the second busbar are made and a second metal that corresponds to a connecting lug of the contact elements.

The first metal can be used to make electrical contact with the busbar. The second metal can be used to make electrical contact with the contact element or to form a contact element therefrom. Since the metals in contact with each other are the same, a connection can be made easily, for example by welding or soldering. The connection lug can be a tab on the contact element.

In one configuration, the first bimetallic connector and the second bimetallic connector are manufactured rolled, punched or pressed.

Rolling or pressing can be used to create a connection between two metals that are difficult to bond, such as aluminum and copper. The contact points that are to be connected to one another can be structured and interlock with one another. The contact points can be bare. Both can increase adhesion of the first metal to the second metal.

In one configuration, the first bimetal connector is attached to a first contact blade of the first busbar and / or the second bimetal connector is attached to a second contact blade of the second busbar.

A contact knife can be punched out or milled out of the busbar. The contact knife can be a tab that lies in the plane of the current ticket and does not protrude over the end of the respective current ticket. A bimetal connector or a contact element can be connected directly to the contact knife. The connection can comprise a positive connection or a material connection. The contact knife can be molded onto the busbar.

In one embodiment, the first bimetal connector is firmly butt-fixed on the first busbar and / or the second bimetal connector is butt-fixed on the second busbar.

Butting on the conductor rail means that an overlap is avoided. I.e. the narrow ends of the bimetal connector and the busbar, in particular on a contact knife of the busbar, are connected to one another.

In one configuration, the first bimetal connector and the second bimetal connector comprise aluminum and copper. Aluminum can be a cheap material for a track. Copper can have good conductivity.

In one configuration, the first bimetallic connector is integrally fixed on the first busbar and / or the second bimetallic connector is overlap on the second busbar.

An overlap can enlarge a contact area where the bimetal connector and the busbar touch. As a result, a current resistance can be reduced.

• 1 eine schematische Darstellung einer Stromschiene gemäß einem Ausführungsbeispiel;
• 2a eine weitere schematische Darstellung der Stromschiene gemäß dem Ausführungsbeispiel von 1;
• 2b eine weitere schematische Darstellung der Stromschiene gemäß dem Ausführungsbeispiel von 1;
• 3a eine schematische Darstellung einer Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 3b eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 3a;
• 3c eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 3a;
• 3d eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 3a;
• 4a eine schematische Darstellung einer Stromschienenanordnung mit Feldlinien;
• 4b eine schematische Darstellung einer Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 4c eine schematische Darstellung einer weiteren Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 5a eine schematische Darstellung einer Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 5b eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 5a;
• 5c eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 5a;
• 6a eine schematische Darstellung eines Bimetallverbinders gemäß einem Ausführungsbeispiel;
• 6b eine schematische Darstellung eines Kontaktelements gemäß einem Ausführungsbeispiel;
• 7 eine schematische Darstellung einer Stromschiene gemäß einem Ausführungsbeispiel;
• 8a eine schematische Darstellung einer Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 8b eine schematische Darstellung eines Teils der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 8a;
• 8c eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 8a;
• 8d eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 8a;
• 9a eine schematische Darstellung einer Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 9b eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 9a;
• 9c eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 9a;
• 10a eine schematische Darstellung einer Stromschienenanordnung gemäß einem Ausführungsbeispiel;
• 10b eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 10a;
• 10c eine weitere schematische Darstellung der Stromschienenanordnung gemäß dem Ausführungsbeispiel von 10a;

The invention is described in more detail below on the basis of exemplary embodiments and the figures. The figures show:

• 1 is a schematic representation of a busbar according to an embodiment;
• 2a a further schematic representation of the busbar according to the embodiment of 1 ;
• 2 B a further schematic representation of the busbar according to the embodiment of 1 ;
• 3a is a schematic representation of a busbar arrangement according to an embodiment;
• 3b a further schematic representation of the busbar arrangement according to the embodiment of 3a ;
• 3c a further schematic representation of the busbar arrangement according to the embodiment of 3a ;
• 3d a further schematic representation of the busbar arrangement according to the embodiment of 3a ;
• 4a a schematic representation of a busbar arrangement with field lines;
• 4b is a schematic representation of a busbar arrangement according to an embodiment;
• 4c a schematic representation of a further busbar arrangement according to an embodiment;
• 5a is a schematic representation of a busbar arrangement according to an embodiment;
• 5b a further schematic representation of the busbar arrangement according to the embodiment of 5a ;
• 5c a further schematic representation of the busbar arrangement according to the embodiment of 5a ;
• 6a is a schematic representation of a bimetal connector according to an embodiment;
• 6b a schematic representation of a contact element according to an embodiment;
• 7 is a schematic representation of a busbar according to an embodiment;
• 8a is a schematic representation of a busbar arrangement according to an embodiment;
• 8b is a schematic representation of part of the busbar arrangement according to the embodiment of 8a ;
• 8c a further schematic representation of the busbar arrangement according to the embodiment of 8a ;
• 8d a further schematic representation of the busbar arrangement according to the embodiment of 8a ;
• 9a is a schematic representation of a busbar arrangement according to an embodiment;
• 9b a further schematic representation of the busbar arrangement according to the embodiment of 9a ;
• 9c a further schematic representation of the busbar arrangement according to the embodiment of 9a ;
• 10a is a schematic representation of a busbar arrangement according to an embodiment;
• 10b a further schematic representation of the busbar arrangement according to the embodiment of 10a ;
• 10c a further schematic representation of the busbar arrangement according to the embodiment of 10a ;

In the figures, the same elements are provided with the same reference symbols. However, this should not be understood as restrictive. In particular, elements with the same reference symbols can have differences in different exemplary embodiments. Features of the different exemplary embodiments can also be combined with one another, even if this is not explicitly mentioned. If a reference number is given as a three-digit number, then this reference number also refers to the corresponding reference number with consecutive letters, depending on the context.

1 shows a track 100 . The track 100 assigns a conductor 101 and insulation 102 on. Both the leader 101 insulation as well 102 extend further to the left, but this is not shown for reasons of space.

On the track 100 is a contact element 200 arranged. The contact element 200 is a flat contact, which is designed as a socket and configured to receive a plug contact in order to establish an electrical connection to the busbar 100 to manufacture. In another embodiment, the contact element 200 designed differently, in particular as a plug contact for receiving a socket.

The track 100 has an end 103 on. At the end 103 is the insulation 102 around the leader 101 placed and insulated the busbar there 100 at the free end 103 . In another embodiment, the end is 103 not through the insulation 102 isolated, but by melting insulation or other insulation or not at all.
A plastic housing is also conceivable, which insulates the two busbars / cut edges from one another.

In one area 104 is the insulation 102 interrupted. In that area 104 is the contact element 200 arranged. The contact element 200 is here on the power rail 100 soldered on. In a further embodiment, the contact element 200 welded or otherwise attached. The contact element 200 provides an electrical connection for the conductor 101 ready.

The 2a and 2 B show the track 100 in sectional views from different perspectives.

In the 2a and 2 B are in addition to the busbar 100 with the contact element 200 Field lines 300 shown. The field lines 300 indicate the presence of an electromagnetic field. The electromagnetic field comes from the conductor 101 off when the power rail 100 is traversed by a current.

The electromagnetic field goes radially from the busbar 100 out. The track 100 is surrounded by the electromagnetic field. The electromagnetic field can currents in neighboring structures and electrical components induce and thus cause disorders or favor health damage in humans. In the sense of electromagnetic compatibility, EMC, such interference is undesirable.

The 3a to 3d show different views of a busbar arrangement 400 . The busbar arrangement 400 comprises a first busbar 100a and a second track 100b . The first track 100a and a second track 100b correspond to that of the 1 to 2 B described busbar 100 .

The first track 100a and the second track 100b are arranged flat against each other. On a first surface 401a on the first track 100a is a first contact element 200a arranged. On a first surface 401b the second track 100b is a second contact element 200b arranged.

The first track 100a lies with a second surface 402a the first track 100a against a second surface 402b the second track 100b .

The first track 100a has a first insulation 102a on having a first leader 101a isolated. The second track 100b exhibits a second insulation 102b on that a second conductor 101b isolated.

The first track 100a lies with the first insulation 102a with the second surface 402a the first busbar to the second insulation 102b on the second surface 402b the second track 100b on.

The first track 100a is as close as possible to the second current note 100b at how it's the thickness of the first insulation 102a and the thickness of the second insulation 102b allows. The first track 100a is parallel to the second busbar 100b arranged.

The first track 100a has a first end 103a on. The second track 100b has a second end 103b on. The first end 103a and the second end 103b close flush, ie neither of the two busbars 100a , 100b stands in this area above the other conductor rail 100b , 100a over.

The first contact element 200a is flush with the first end 103a on the first surface 401a the first track 100a fixed. The second contact element 200b is flush with the second end 103b on the first surface 401b the second track 100b fixed. The contact elements can also be set individually or together reset from the end of the busbar.

The busbar arrangement 400 is mirror-symmetrical, with a mirror plane between the first busbar 100a and the second busbar 100b lies and a second mirror plane vertically centered through both busbars 100a , 100b running.

4a shows the first track 100a and the second track 100b with a distance from each other that is greater than to the 3a to 3d described. In addition, in the 4a Field lines 300 shown as to the 2a and 2 B described to represent an electromagnetic field from the first power rail 100a or the second busbar 100b going out.

Between the two busbars 100a , 100b there is an overlap of the field lines 300 . Here, an electromagnetic field is large compared to an outside field.

The first track 100a is connected to a positive pole of a power source. The second track 100b is connected to a negative pole of the power source. The track 100a , 100b are therefore traversed by a current in opposite directions. Therefore, they are from the two power rails 100a , 100b emitted electromagnetic fields opposite to each other. The result of this is that between the two busbars 100a , 100b there is a strong electromagnetic field. However, if the two busbars 100a , 100b with the second faces 402a , 402b lie against each other, the electromagnetic fields lying between the busbars do not emerge to the outside and the outer electromagnetic field parts at least largely cancel each other out.

The 4b and 4c show the busbar arrangement 400 with drawn field lines 300 from different perspectives. Here are the field lines 300 only at the edge of the busbar arrangement 400 shown, otherwise the electromagnetic fields essentially cancel each other out and have no external effect.

The 5a to 5d show a busbar arrangement 500 according to a further embodiment.

The busbar arrangement 500 points how to the busbar arrangement 400 from the 3a to 3d described a first busbar 100a and a second track 100b on. On the first track 100a is the first contact element 200a arranged. On the second track 100b is the second contact element 200b arranged.

In addition, is on each of the two busbars 100a , 100b another contact element arranged. On the first track 100a is a third contact element 200c arranged. On the second track 100b is a fourth contact element 200d arranged. The contact elements 200a , 200b , 200c , 200d are arranged so that two contact elements each 200a , 200b and 200c , 200d are arranged opposite.

This arrangement in turn creates a symmetry, in particular mirror and axis symmetry, as is already the case 3a to 3d described. Because of the symmetry of the first busbar 100a and the second busbar 100b with the respective contacts 200a , 200b , 200c , 200d in this arrangement, the busbars that are energized in opposite directions are also the same in this arrangement 100a , 100b emitted electromagnetic fields and an EMC is taken into account.

6a shows a bimetal connector 600 . The bimetal connector 600 has a first part 601 and a second part 602 on. The first part 601 consists of a first metal, especially copper. The second part 602 consists of a second metal, especially aluminum.

The first part 601 is with the second part 602 over a ramp 603 connected. In the manufacture of the bimetal connector 600 become the first part 601 and the second part 602 each with a bevelled edge, ie the ramp 603 , superimposed and then deformed around the two parts 601 , 602 put together, especially the parts 601 , 602 rolled. This connects the first part 601 with the second part 602 .

6b shows a contact element 200 as it is in the busbar assemblies 400 and 500 and on the track 100 is arranged.

The contact element 200 has a plug-in area 201 and a tab area 202 on. The mating area 201 serves to receive a mating contact, in particular a plug contact. In a further exemplary embodiment, the plug-in area serves 201 the inclusion of a socket.

The tab area 202 is used for the mechanical and electrical connection with a busbar 100 . This is the tab area 202 directly or using the bimetal connector 600 with a track 100 connected. The tab area 202 can be silver-plated to increase electrical conductivity and to match the bimetal connector 600 to be easier to connect.

7 shows the track 700 . The track 700 corresponds to the conductor rail 100 , however, was on the track 700 no contact element yet 200 upset.

The track 700 points to the contact element 200 a recess 701 from the insulation 102 on. In the recess 701 is a contact area 702 the track 700 stripped. The contact area 702 and the recess 701 are together just as big, or bigger, that the contact element 200 if it is with the power rail 700 is connected flush with the end of the busbar 700 locks so that the end of the track 700 results in a straight edge from which the contact element 200 not protruding. However, the contact part can be offset against the cut edge towards the rear or towards the middle of the rail.

8a to 8d show a busbar arrangement 800 with two busbars 700 . Here are the busbars 700 How to the embodiments according to the 3a to 5c described, arranged to each other. The contact elements 200a , 200b are arranged rotationally symmetrically, with an axis of symmetry in the middle parallel between the two busbars 700 runs.

Here are the contact elements 200a , 200b via bimetal connector 600 with the respective track 700 connected. The bimetal connectors 600 are here on the conductor rail 700 and the contact element 200 arranged, in particular welded, for example by ultrasonic welding. The bimetal connector 600 points to the first part 601 with which he with the power rail 700 is connected to the metal of the busbar 700 , especially aluminum. The second part 602 consists in particular of copper.

The bimetal connector 600 lies flat on the contact area 702 and a connecting lug of the contact element 200 on.

The 9a to 9c show a further busbar arrangement 900 according to a further embodiment. The busbar arrangement 900 is essentially structured like that of the 8a to 8d described busbar arrangement 800 . One difference, however, is the contacting of the contact elements 200 with the busbars 700 . In the embodiment of the 8a to 8d the bimetal connectors 600 on the contact areas 702 the busbars 700 put on. In contrast, are in the busbar arrangement 900 according to the embodiment of the 9a to 9c the bimetal connectors 600 blunt, ie on the face side, at the contact areas 702 fixed.

The contact elements are also here 200 not essential over the power rails 700 out so that a flush end of the busbar assembly 900 is achieved. In this way, the design can be even flatter and the electromagnetic fields of the two busbars 700 nevertheless rise over the entire length of the conductor rails 700 against each other.

The 10a to 10c show a busbar arrangement 1000 , where the contact elements 200 have not yet been installed. Here is a contact knife 1001 shown. The contact knife 1001 is punched out of the conductor rail. In a further embodiment, the contact knife 1001 milled or otherwise trained. The busbar arrangement 1000 is also axially symmetrical.

Reference list

100, 700

Track

200, 200a, 200b

Contact element

400, 500, 800

Busbar arrangement

900, 1000

Busbar arrangement

101, 101a, 101b

ladder

102, 102a, 102b

isolation

103

The End

104

Area

300

Field lines

100a

first track

100b

second track

401a, 401b

first area

402a, 402b

second area

103a

first end

103b

second end

200c, 200d

Contact element

600

Bimetal connector

601

first part

602

second part

603

ramp

201

Mating area

202

Tab area

701

Recess

702

Contact area

1001

Contact knife

Claims (15)

Busbar arrangement (400, 500, 800, 900, 1000) with a first busbar (100a) with a first surface (401a), a second surface (402a) opposite the first surface (401a), and a first end (103a) on which a first contact element (200a) on the first surface (401a ) is arranged; a second busbar (100b) with a first surface (401b), a second surface (402b) opposite the first surface (401b), and a second end (103b) on which a second contact element (200b) on the first surface (401b ) is arranged, wherein the second surface (402a) of the first busbar (100a) is arranged opposite to the second surface (402b) of the second busbar (100b); wherein the first contact element (200a) is electrically and mechanically connected to the first busbar (100a) and the second contact element (200b) is electrically and mechanically connected to the second busbar (100b), the first end (103a) and the second end (103b) being arranged flush with one another. Busbar arrangement (400, 500, 800, 900, 1000) according to Claim 1 , wherein the first contact element (200a) is arranged flush with the first end (103a) of the first busbar (100a) and wherein the second contact element (200b) is arranged flush with the second end (103b) of the second busbar (100b). Busbar arrangement (400, 500, 800, 900, 1000) according to one of the preceding claims, wherein the first contact element (200a) and the second contact element (200b) are arranged mirror-symmetrically to one another, with a mirror plane between the first busbar (100a) and the second Current notes (100b) run. Busbar arrangement (400, 500, 800, 900, 1000) according to one of the Claims 1 or 2nd , wherein the first contact element (200a) and the second contact element (200b) are arranged axisymmetrically with respect to one another, a point of symmetry lying centrally between the first end (103a) and the second end (103b). Busbar arrangement (400, 500, 800, 900, 1000) according to one of the preceding claims, wherein the first busbar (100a) a first circumferential insulation (102a) and the second busbar (100b) a second circumferential insulation (102b) and wherein the first busbar (100a) is spaced from the second busbar (100b) by the first insulation (102a) and the second insulation (102b). Busbar arrangement (400, 500, 800, 900, 1000) according to Claim 5 , wherein the first insulation (102a) in the region of the first contact element (200a) on the first surface of the first busbar (100a) is interrupted, and wherein the second insulation (102b) in the region of the second contact element (200b) on the first surface of the second busbar (100b) is interrupted. Busbar arrangement (400, 500, 800, 900, 1000) according to one of the preceding claims, with a third contact element (200c) which is electrically and mechanically flush on the first surface (401a) of the first busbar (100a) to the first end (103a ) and a fourth contact element (200d), which is arranged electrically and mechanically on the first surface (401b) of the second busbar (100b) flush with the second end (103b). Busbar arrangement (400, 500, 800, 900, 1000) according to one of the preceding claims, wherein the contact elements (200) are set up to receive a mating contact in order to make electrical contact with the respective busbar (100a, 100b, 100a, 100b). Busbar arrangement (400, 500, 800, 900, 1000) according to one of the preceding claims, wherein the first contact element (200a) and the second contact element (200b) are flat contacts or contact sleeves. Busbar arrangement (400, 500, 800, 900, 1000) according to one of the preceding claims, wherein the first contact element (200a) is connected to the first busbar (100a) via a first bimetal connector (600) and / or the second contact element (200b) is connected to the second busbar (100b) via a second bimetallic connector (600). Busbar arrangement (400, 500, 800, 900, 1000) according to Claim 10 , wherein the first bimetallic connector (600) and the second bimetallic connector (600) have a first metal, from which the first busbar (100a) and the second busbar (100b) are made and have a second metal that has a connecting lug of the contact elements (200) corresponds. Busbar arrangement (400, 500, 800, 900, 1000) according to Claim 10 or 11 , wherein the first bimetallic connector (600) and the second bimetallic connector (600) are rolled, stamped or pressed. Busbar arrangement (400, 500, 800, 900, 1000) according to one of the Claims 10 to 12th , wherein the first bimetal connector (600) is fixed to a first contact blade (1001) of the first busbar (100a) and / or the second bimetal connector (600) is attached to a second contact blade (1001) of the second busbar (100b). Busbar arrangement (400, 500, 800, 900, 1000) according to one of the Claims 10 to 13 , wherein the first bimetallic connector (600) is butt-fastened to the first busbar (100a) and / or the second bimetallic connector (600) is butt-fixed to the second busbar (100b). Busbar arrangement (400, 500, 800, 900, 1000) according to one of the Claims 10 to 14 , wherein the first bimetallic connector (600) is fixed overlapping on the first busbar (100a) and / or the second bimetallic connector (600) is overlap on the second busbar (100b).

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