阅读说明：本技术 包括具有导体布置的母线的电气连接布置以及夹子元件 (Electrical connection arrangement comprising a busbar with a conductor arrangement, and clamping element ) 是由 T.卡利斯 于 2020-09-22 设计创作，主要内容包括：本发明描述了一种电气连接布置(100),包括：-母线(110),具有第一接触区域(116),-导体布置(120),其通过第二接触区域(122)搁置在母线(110)的第一接触区域(116)上并通过接触区域(116,122)电连接至母线(110),其由至少一个电流传导板(130,140)构成,以及-夹子元件(160),具有：第一弹簧肢(170),其支承在母线(110)的底侧(112)上；第二弹簧肢(180),其搁置在所述导体布置(120)的顶侧(132,142)上；以及连接部分(190),其将所述第一弹簧肢和第二弹簧肢(170,180)彼此连接,其中所述弹簧肢(170,180)设计成使所述母线(110)和所述导体布置(120)通过其两个接触区域(116,122)彼此压靠,以在所述母线(110)和所述导体布置(120)之间形成机械连接。(The invention describes an electrical connection arrangement (100) comprising: -a busbar (110) having a first contact area (116), -a conductor arrangement (120) which rests on the first contact area (116) of the busbar (110) by means of a second contact area (122) and is electrically connected to the busbar (110) by means of the contact areas (116, 122), which is composed of at least one current conducting plate (130, 140), and-a clip element (160) having: a first spring limb (170) which is supported on the bottom side (112) of the busbar (110); a second spring limb (180) resting on the top side (132, 142) of the conductor arrangement (120); and a connecting portion (190) connecting the first and second spring limbs (170, 180) to each other, wherein the spring limbs (170, 180) are designed to press the busbar (110) and the conductor arrangement (120) against each other by means of their two contact areas (116, 122) to form a mechanical connection between the busbar (110) and the conductor arrangement (120).)

1. An electrical connection arrangement (100) comprising:

-a busbar (110) having a first contact area (116),

-a conductor arrangement (120) which rests on the first contact area (116) of the busbar (110) by means of a second contact area (122) and is electrically connected to the busbar (110) by means of the contact areas (116, 122), which is composed of at least one current conducting plate (130, 140), and

-a clip element (160) having: a first spring limb (170) supported on a bottom side (112) of the busbar (110); a second spring limb (180) resting on the top side (132, 142) of the conductor arrangement (120); and a connecting portion (190) connecting the first and second spring limbs (170, 180) to each other,

wherein the spring limb (170, 180) is designed to press the busbar (110) and the conductor arrangement (120) against one another by means of its two contact areas (116, 122) to form a mechanical connection between the busbar (110) and the conductor arrangement (120).

2. The electrical connection arrangement (100) of claim 1,

wherein at least one surface structure (134) is provided on a contact area (122) of the conductor arrangement (120), which surface structure interacts with a complementary surface structure (103) on a contact area (116) of the busbar (110) in the assembled state of the electrical connection arrangement (100) and thereby forms an interlocking connection between the conductor arrangement (120) and the busbar (110).

3. The electrical connection arrangement (100) of claim 2,

wherein the surface structure (134) on the contact region (122) of the current conducting plate (130, 140) is designed in the form of a cylindrical or cup-shaped raised portion which engages in an interlocking manner into a surface structure (117) in the assembled state of the electrical connection arrangement (100), the surface structure (117) being formed on the contact region (116) of the busbar (110) in the form of a corresponding recess.

4. Electrical connection arrangement (100) of any one of the preceding claims,

wherein the conductor arrangement (120) is designed in the form of a stack (121) comprising at least one first current-conducting plate (130) and one second current-conducting plate (140),

wherein the contact area (122) of the conductor arrangement (120) is arranged on a bottom side (133) of the first current conducting plate (130), and

wherein the first spring limb (170) of the clip element (160) is designed to exert, in the assembled state of the electrical connection arrangement (100), a defined pressure force on the top side (142) of the second current conducting plate (140), by means of which pressure force the second current conducting plate (140) is pressed in the direction of the first current conducting plate (130), and the first current conducting plate (130) is pressed against the first contact region (116) of the busbar (110) by means of the second contact region (132).

5. The electrical connection arrangement (100) of claim 4,

wherein the first current conducting plate (130) has a cup-shaped surface structure (134) forming a recess (135) on a top side (132) of the first current conducting plate (130), and

wherein the recess (134) of the first current conducting plate (130) of the electrical connection arrangement (100) forms an interlocking socket for a cylindrical or cup-shaped surface structure (144) of a current conducting plate (41) arranged directly above the first current conducting plate (130).

6. Electrical connection arrangement (100) of any one of the preceding claims,

wherein at least one of the contact areas (116, 122, 123, 124) has a specific roughness (136) to limit lateral movement between the first current conducting plate (170) and the busbar (110).

7. Electrical connection arrangement (100) of any one of the preceding claims,

wherein at least one of the spring limbs (170, 180) of the clip element (160) has a latching structure (176) which engages around the busbar (110) in an interlocking manner to establish a latching connection between the clip element (160) and the busbar (110).

8. The electrical connection arrangement (100) of claim 7,

wherein the latching structure (176) is formed by curved end portions (175) of respective spring limbs (170, 180).

9. The electrical connection arrangement (100) of claim 8,

wherein the curved end portion (175) forms an acute angle with an adjacent portion (174) of the second spring limb (180).

10. Electrical connection arrangement (100) of any one of the preceding claims,

wherein the second spring limb (180) of the clip element (160) has two transverse wing structures (186, 187) extending in the direction of the first spring limb (170), which, in the assembled state of the electrical connection arrangement (100), inhibit a transverse movement of the conductor arrangement (120).

11. Electrical connection arrangement (100) of any one of the preceding claims,

wherein the bus bar (110) is designed as a bus bar in a battery assembly comprising a plurality of cells, and

wherein the at least one current conducting plate (170, 180) is designed as a current tapping plate for a battery of the battery assembly.

12. A clip element (160) for an electrical connection arrangement (100) as claimed in any one of claims 1 to 10.

13. A bus bar (110) for a connection arrangement (100) according to any one of claims 1 to 12.

14. A conductor arrangement (120) comprising at least one current conducting plate (130, 140) for an electrical connection arrangement (100) according to any one of claims 1 to 10.

Technical Field

The invention relates to an electrical connection arrangement for connecting a conductor arrangement comprising at least one current conducting plate to a busbar, comprising a clamping element which presses the conductor arrangement and the busbar against each other. The invention also relates to a busbar having a corresponding design and a conductor arrangement also having a corresponding design.

Background

Bus bars are used in various technical applications to build a local infrastructure for current distribution. The bus bars are designed in the form of relatively thick and rigid current conductors, usually forming the backbone of the local infrastructure for current distribution, and are connected with other current conductors for further current distribution. Due to their size, bus bars are generally adapted to conduct large currents and power. Bus bars in electric vehicles involve, among other things, transferring current from a battery assembly to a corresponding power assembly, such as an electric motor. Since such a battery assembly usually consists of a large number of individual battery cells, so-called bus bars are used here. The bus bar is a bus bar directly disposed on the battery assembly, and a plurality of battery cells or a plurality of battery cell groups are generally individually connected to the bus bar, respectively. In the case of electric vehicles, including hybrid vehicles with electric drive in addition to purely electric vehicles, the use of such a bus bar requires a particularly safe and reliable electrical and mechanical connection to be established between the bus bar and the current conductor connected to said bus bar. Furthermore, the corresponding connection arrangement should be designed to be as flat as possible, since the available installation space is small. The connection techniques usually used for busbars, such as screw connections, have proven to be particularly unsuitable and also rather complicated in terms of production.

Disclosure of Invention

It is therefore an object of the invention to provide a possible way of connecting a conductor arrangement and a busbar which, in addition to having sufficient safety and reliability and a small installation space, also makes relatively simple production and assembly possible. This object is solved by a connection arrangement according to claim 1. The object is also achieved by a clip element according to claim 12, a busbar according to claim 13 and a conductor arrangement according to claim 14. Further advantageous embodiments are defined in the dependent claims.

The present invention provides an electrical connection arrangement comprising a busbar having a first contact area; a conductor arrangement which rests on the first contact region of the busbar by means of a second contact region and is electrically connected to the busbar by means of the contact region, which is composed of at least one current-conducting plate; and a clip element. The clip element has: a first spring limb resting on a bottom side of the bus bar; a second spring limb resting on a top side of the conductor arrangement; and a connecting portion connecting the first and second spring limbs to each other. Here, the spring limb is designed to press the busbar and the conductor arrangement against one another via its two contact areas in order to form a mechanical and electrical connection between the busbar and the conductor arrangement. Such a clamping element here allows the flat conductor structure to be fastened to the busbar in a particularly simple and rapid manner. The connection arrangement realized in this way requires only a small amount of installation space and can be realized in a cost-effective manner in terms of production.

In one embodiment, provision is made for at least one surface structure to be provided on the contact region of the conductor arrangement, which surface structure interacts with a complementary surface structure on the contact region of the busbar in the assembled state of the electrical connection arrangement, which thus forms an interlocking connection between the conductor arrangement and the busbar. In particular, a lateral displacement of the conductor structures relative to each other is effectively prevented by the interlocking connection of the surface structures. A safe mechanical and electrical connection between the components involved can thus be achieved in a particularly simple manner by means of a surface structure of the type in question.

In a further embodiment, provision is made for the surface structure on the contact region of the current conducting plate to be designed in the form of a cylindrical or cup-shaped raised portion which engages in an interlocking manner in the assembled state of the electrical connection arrangement into the surface structure which is formed in the form of a corresponding recess on the contact region of the busbar. Such a cylindrical or cup-shaped projection allows a particularly secure connection of the conductor structures concerned. In particular, the cup-shaped projection can also be produced in a particularly simple and cost-effective manner on the current-conducting plate by means of a deep-drawing process. Furthermore, the cup-shaped design of the surface structure on the current conducting plate allows a plurality of such surface structures to be stacked together. As a result, a plurality of these surface structures can also be realized adjacent to one another on the contact region in a relatively space-saving manner.

In a further embodiment, it is provided that the conductor arrangement is designed in the form of a stack comprising at least one first current-conducting plate and one second current-conducting plate, wherein the contact region of the conductor arrangement is arranged on the bottom side of the first current-conducting plate. The first spring limb of the clamping element is designed to exert, in the assembled state of the electrical connection arrangement, a defined pressure force on the top side of the second current conducting plate, with which pressure force the second current conducting plate is pressed in the direction of the first current conducting plate and the first current conducting plate is pressed against the first contact region of the busbar by means of the second contact region. The connection of a plurality of current-conducting plates, which are arranged one above the other, to the busbar makes a particularly space-saving arrangement possible. This concept is particularly advantageous when a large number of battery cells are connected, as may occur, for example, in a battery assembly of an electric vehicle.

In a further embodiment, it is provided that the first current-conducting plate has a cup-shaped surface structure, which forms a recess on a top side of the first current-conducting plate. Here, the recess of the first current-conducting plate of the electrical connection arrangement forms an interlocking socket for a cylindrical or cup-shaped surface structure of the current-conducting plate arranged directly above the first current-conducting plate. This concept allows the surface structure of a plurality of current conducting plates stacked one on top of the other to be stacked together. Since the surface structures are in this case arranged one above the other, the overall arrangement has a relatively small space requirement.

In a further embodiment, provision is made for at least one contact region to have a specific roughness in order to limit a lateral movement between the first current-conducting plate and the busbar. A surface configured in this way makes possible a relatively simple but very effective interlocking connection between the components involved.

In a further embodiment, provision is made for at least one of the spring limbs of the clamping element to have a latching structure which engages around the busbar in an interlocking manner in order to establish a latching connection between the clamping element and the busbar. Such a latching connection prevents the clip element from accidentally sliding and in this way increases the safety of the connection of the entire connecting device.

In a further embodiment, provision is made for the latching structure to be formed by a curved end portion of the respective spring limb. This arrangement of the latching structure makes production particularly simple and therefore particularly cost-effective.

In a further embodiment, provision is made for the curved end portion to form an acute angle with the adjacent portion of the second spring limb. Here, the outer side of such a latching structure forms a ramp, in such a way that the mounting of the clip element to the conductor structure becomes easier.

In a further embodiment, it is provided that the second spring limb of the clamping element has two transverse limb structures extending in the direction of the first spring limb, which transverse limb structures, in the assembled state of the electrical connection arrangement, suppress a transverse movement of the conductor arrangement. In this way, a particularly secure connection of the conductor arrangement to the bus bar can be achieved.

In a further embodiment, provision is made for the busbar to be designed as a busbar in a battery assembly comprising a plurality of cells. Here, the at least one current conducting plate is designed as a current tapping plate for the cells of the battery assembly.

The invention also provides a clip element for use in the electrical connection arrangement described above.

The invention also provides a bus bar for the electrical connection arrangement described above.

Finally, the invention provides a conductor arrangement for an electrical connection arrangement as described above, comprising at least one current conducting plate.

Drawings

The invention will be described in more detail below with reference to the accompanying drawings, in which:

fig. 1 shows a perspective view of a connection arrangement according to the invention, comprising a clip element for fastening a conductor arrangement comprising one or more conductor plates to a busbar;

FIG. 2 is a side view of the connection arrangement of FIG. 1;

FIG. 3 shows a clip element for implementing the connection arrangement of FIG. 1;

fig. 4 shows an exploded view of the arrangement of current conductors with interengaging surface structures of fig. 1;

FIG. 5 shows a cross-sectional view of the arrangement of FIG. 4;

FIG. 6 shows a cross-sectional view of the arrangement of FIG. 4 prior to installation of the clip element;

figure 7 shows a cross-sectional view of the arrangement of figure 1;

fig. 8 shows an alternative configuration of the surface of the current conductor with a certain roughness for ensuring the mechanical connection between the components;

FIG. 9 shows an alternative arrangement of a clip element with a latching structure including a bus bar;

FIG. 10 shows another alternative configuration of a clip element having a latching structure that forms a ramp to facilitate installation;

fig. 11 shows an electrical connection arrangement with a clip element which latches with a current conducting plate;

figure 12 shows a side view of the arrangement of figure 14;

fig. 13 shows a further alternative configuration of a clip element with transverse wing structures for laterally securing a conductor arrangement;

FIG. 14 shows a connection arrangement with the clip element of FIG. 11;

FIG. 15 shows a modification to the clip element of FIG. 12 having an extended transverse wing structure to facilitate installation; and

fig. 16 shows a perspective view of a bus bar with two connection arrangements for explaining the way the bus bar operates as a bus bar connected to a battery assembly of an electric vehicle.

Detailed Description

Fig. 1 shows a connection arrangement 100 according to the invention, comprising: a bus bar 110; a conductor arrangement 120 connected to the bus bar and comprising two current conducting plates 130, 140 stacked one on top of the other; and a clip element 160 connecting the conductor arrangement 120 and the busbar 110 to each other. The busbar 110 is in the present case of a substantially rectangular design with a flat top side 111, on which top side 111 a contact area 116 is located in a contact area 115 of the busbar 110. The contact region 116 serves here as a support region for the conductor arrangement 120 and is covered by the conductor arrangement in the assembled state of the electrical connection arrangement 100 shown here. Here, the conductor arrangement 120 rests on the busbar 110 by means of the contact region 122 arranged on its likewise flat bottom side 133. Since the conductor arrangement 120 is designed in the form of a stack 121 comprising two strip-shaped current-conducting plates 130, 140, which in this example are stacked one on top of the other, the contact region 122 of the conductor arrangement is located on the bottom side 133 of the lower current-conducting plate 130.

In order to fix the conductor arrangement 120 to the busbar 110, the electrical connection arrangement 100 further comprises a clip element 160 which, in the assembled state of the electrical connection arrangement 100, comprises the busbar 110 and the conductor arrangement 120 arranged thereon and presses them against one another by their contact regions 116, 122. For this purpose, the clip element 160 has two spring limbs 170, 180 which can be deflected elastically and which are connected to one another by way of their connecting sections 190.

Fig. 2 shows a side view of the electrical connection arrangement 100 of fig. 1. It is clear from this figure that the clip element 160 is pressed from below by its lower spring limb 170 against the bottom side 112 of the busbar 110 and by its upper spring limb 180 against the top side 132 of the conductor arrangement 120 from above.

Fig. 3 shows a view of a detail of the clip element 116 of fig. 2. The clamping element 116 is here in an elastically pretensioned state, which corresponds to the assembled state, with the spring limbs 170, 180 unfolded. The spring element 116 shown here by way of example is preferably formed in the form of a bent metal strip (for example, spring steel). In principle, however, the spring element 116 can also be made of a different material and be realized in a different form than that shown here.

As is apparent from fig. 3, the spring limbs 170, 180 of the clip element 160 each comprise a first portion 173, 183 (which springs up from the connecting portion 190) and a second portion 174, 184 (which adjoins said first portion). The first portions 173, 183 of the two spring limbs 170, 180 run in a slightly curved manner relative to one another, so that they do not come into contact with the busbar 110 and the conductor arrangement 120, but rather essentially act as elastically deflectable spring elements of the spring limbs 170, 180. Adjacent to the first portions 173, 183 are second portions 174, 184 which in turn each bend slightly outward and each have a preferably flat contact pressure area 172, 182. Depending on the application, the contact pressure regions 172, 182 may be specially configured, for example, to facilitate the mounting of the clip element 160 by means of particularly smooth contact pressure regions 172, 182, or to prevent the mounted clip element 160 from slipping by means of specially configured surfaces.

In order to prevent lateral displacement of the conductor arrangement 120 or the current conducting plates 130, 140 relative to the bus bar 110, the components in question are preferably connected to one another in an interlocking manner. To this end, the busbar 110 and/or the conductor arrangement 120 have corresponding structures on their respective contact regions 116, 122, which structures interact in an interlocking manner with the respective complementary contact region 122, 116 or with the structure of the respective complementary contact region 122, 116. In order to also suppress lateral displacement of the individual current conducting plates 130, 140 relative to each other in the conductor arrangement 120 (which has a plurality of current conducting plates 130, 140 stacked one above the other), corresponding surface structures are preferably also provided on the contact areas of the current conducting plates 130, 140.

As can be seen from fig. 4, in the present example, the first current-conducting plate 130 has, on its bottom side 133 (which forms the contact region 122 of the conductor arrangement 120), two surface structures 1341, 1342 in the form of cylindrical or cup-shaped raised portions which engage in an interlocking manner, in the assembled state of the electrical connection arrangement 100, two correspondingly designed recesses 117 on the complementary contact region 116 of the busbar 110₁、117₂In (1). The second current conducting plate 140 also has a surface structure 144 in the form of a cylindrical or cup-shaped raised portion on its bottom side 143₁、144₂Which in the assembled state of the electrical connection arrangement 100 engages in an interlocking manner two recesses 135 of a corresponding design on the top side 132 of the first current conducting plate 140₁、135₂In (1).

Figure 5 shows a cross-sectional view of the arrangement of figure 4. Here, it is clear that the surface structure 134₁、134₂、144₁、144₂Preferably a cup-shaped design, in which the postLike convex part 134₁、134₂、144₁、144₂Each of which is disposed in a respective associated recess 117₁、117₂、135₁、135₂Just above.

Fig. 6 shows a cross-sectional view of an already preassembled arrangement comprising two current conducting plates 130, 140 and a busbar 110. Depending on the application, the preassembly of the two current conducting plates 130, 140 between each other or of the conductor arrangement 120 formed by the current conducting plates 130, 140 and the busbar 110 in this way takes place in different ways. In the simplest case, the conductor structures 110, 130, 140 are simply placed one on top of the other. The conductor structures 110, 130, 140 can also be pre-fixed by being pressed together, wherein surface structures that may be present are pressed together. In principle, any suitable connection method for the conductors can also be used for the preassembly of the conductor arrangement 110, 130, 140. The joining method includes, inter alia, welding or soldering, for example ultrasonic welding or electric welding, etc.

In the exemplary embodiment shown in fig. 6, the cylindrical raised portions of the first current conducting plate 130 (each of which projects downwardly) engage in an interlocking manner an associated recess 117 on the top side 111 of the busbar 110₁、117₂In (1). Similarly, a cup-shaped raised portion 144 on the bottom side 142 of the second current conducting plate 140₁、144₂Which projects downwards, engages in an interlocking manner in a recess 135 formed on the top side 133 of the first current-conducting plate 130₁、135₂In (1).

Due to the columnar convex part 134₁、134₂、144₁、144₂In the respective associated recess 117₁、117₂、135₁、135₂The conductor arrangement 130, 140, 110 concerned is fixed against lateral displacement. As is clear from the sectional view in fig. 7, the clip element 160 presses the connection partners 110, 130, 140 against one another by means of its two spring limbs 170, 180, so that the cylindrical projection 134 is prevented₁、134₂、144₁、144₂From the concave part117₁、117₂、135₁、135₂And (6) dropping out. This results in a particularly safe mechanical and electrical connection between the current conducting plates 130, 140 and the bus bar 110.

In principle, the cylindrical projection 134₁、134₂、144₁、144₂And corresponding recess 117₁、117₂、135₁、135₂Are matched with each other. In particular, the columnar convex portion 134₁、134₂、144₁、144₂May be dimensioned relative to the respective associated recess 117₁、117₂、135₁、135₂Are designed with an exact fit so that a fixed connection is achieved between the current conducting plates 130, 140 and the busbar 110 located therebelow. Here, the columnar convex portion 134₁、134₂、144₁、144₂Slightly oversized or associated recesses 117₁、117₂、135₁、135₂The slight undersize of (a) may have the effect that by pressing the current conducting plates 130, 140 and the bus bar 110 together, a material flow is induced in the relevant surface structure, by means of which material flow the oxide layer possibly present on the surface of the component concerned is destroyed, improving the electrical contact between the conductors concerned.

In principle, the cylindrical projection 134₁、134₂、144₁、144₂Also relative to the associated recess 117₁、117₂、135₁、135₂Slightly smaller in size. This may facilitate the mounting of the current conducting plates 130, 140.

Use of cup-shaped surface structures 134 on current conducting plates 130, 140₁、134₂、144₁、144₂Have the advantage that they can be produced in a relatively simple manner by means of a deep-drawing process. However, in principle, the corresponding raised portions and recesses may also be produced by means of other production processes, for example material may also be removed by means of a cutting process.

In addition or as an alternative to the use of surface structures, the interlocking connection between the current-conducting plates 130, 140 and the busbar 110 can also be realized by a special structure of the respective contact areas. In this regard, fig. 8 shows by way of example an embodiment of an electrical connection arrangement 100 in which the busbar 110 and the two current conducting plates 130, 140 have corresponding surface structures 118, 136, 146. The surface structure is preferably a surface with a specific roughness. Such surfaces typically have an irregular microstructure, for example, by embossing, etching, sandblasting, grinding or otherwise roughening or structuring the respective surfaces 111, 132, 133, 142, 143 to form an irregular microstructure. In principle, however, suitable surface structures may also comprise regular microstructures, such as channels, teeth or the like. Such a structure may be formed, for example, by an embossing process. Fig. 8 shows the respective surface structures 118, 136, 146 only on the top sides 111, 133, 143 of the conductor structures 110, 130, 140. In principle, however, the bottom sides 112, 133, 143 of the respective conductor structures 110, 130, 140 may also have a corresponding surface structure.

Such as already incorporating columnar structures 134₁、134₂、144₁、144₂And associated recesses 117₁、117₂、135₁、135₂Is described, it is advantageous to break the oxide layer that may be present on the contact areas of the current conductors 110, 130, 140 concerned, in order to improve the electrical contact between the current conductors 110, 130, 140 concerned. This can also be done by means of special structures which are designed as part of the structures on at least one contact area of the current conductor 110, 130, 140 concerned. As part of the assembly of the electrical connection arrangement 100, such a structure, which preferably has sharp edges, can enter into corresponding contact regions of the respective connection partners 110, 130, 140 when the conductor structures 110, 130, 140 are pressed together, thereby ensuring sufficient electrical contact between the connection partners 110, 130, 140. In addition to the improved electrical contact, this arrangement also creates a connection between the two connection partners 110, 130, 140 in that the respective complementary contact regions of the connection partners 110, 130, 140 are formedThe interlocking connection of (1). This provides a fixation against lateral displacement of the conductor structure 110, 130, 140.

Corresponding mounting fixtures may be provided to secure the clip element 160 in its mounted position. These mounting fixtures can be designed, for example, in the form of one or more latching elements. Fig. 9 shows an exemplary embodiment of the clip element 160, the lower spring limb 170 of which has a corresponding latching element 176. The latching element 176, which in the present example is formed by the downwardly bent end portion 175 of the lower spring limb 170, engages around the busbar 110 in the mounted state of the clip element 160 and in this way secures the clip element 160 against accidental sliding or falling.

Fig. 10 shows an alternative embodiment, in which the latching elements 176 arranged on the lower spring limb 170 of the clip element 160 have been formed by a stronger bending of the end portion 175 of the respective spring limb 170. Here, the latch element 176 forms an acute angle with the central portion 174 of the lower spring limb 170. In this variant, the outer face 177 of the latching element 176 forms a sort of ramp, by means of which the pre-assembly arrangement of the clip element 160 onto the current conducting plate 130, 140 comprising the busbar 110 is made easier.

In principle, the clip element 160 can also be secured with a latching element 188 formed on the upper spring limb 180. In this respect, fig. 11 shows a correspondingly designed electrical connection arrangement 100, wherein the upper spring limb 180 has a latching element 188, which latching element 188 is formed by bending an end portion 185 of the upper spring limb 180. As is clear from fig. 12, which shows a side view of the electrical connection arrangement 100 of fig. 11, the latching element 188 engages in an interlocking manner in the recess 147 arranged on the top side 142 of the conductor arrangement 120 in the mounted state of the clip element 160. The grooves 147 are formed, for example, by a bending or deep drawing process of the current conducting plates 130, 140. Due to the production process of the recess 147, a raised portion 138 is produced on the bottom side 132 of the first current conducting plate 130, which raised portion bears against the side wall 113 of the busbar 110 facing said raised portion in the assembled state of the electrical connection arrangement 100. As a result, the clip element 160 is not directly but indirectly latched to the busbar 110, as a result of which the clip element 160 is correspondingly mechanically fixed in its mounting position, and thus the entire electrical connection arrangement 100 is correspondingly mechanically fixed.

Fig. 13 shows a further variant of the clip element 160, in which the upper spring limb 180 has two transverse wing structures 186, 187 projecting downwards in its second section 184. The transverse wing structures 186, 187, which are preferably formed by curved structures, which project from the upper spring limb 180 in the longitudinal direction of the busbar 110, serve here as transverse fixing means in the direction of the lower spring limb 170 for fixing the electrical connection arrangement 100 against transverse movement of the components concerned. The mounted state of the clip element 160 of fig. 13 is shown in fig. 14. It is clearly visible here that the transverse wing structures 186, 187 arranged on the upper spring limb 180 of the clip element 160 laterally enclose the two current-conducting plates 130, 140 and in this way prevent a transverse movement of these components in the longitudinal direction of the busbar 110 in an effective manner. At the same time, the two transverse wing structures 186, 187 also prevent the clip element 160 from unintentionally sliding transversely in the longitudinal direction of the busbar 110. Overall, by means of the transverse wing structures 186, 187, the safety of the mechanical and electrical connection between the conductor arrangement 120 formed by the current conductor plates 130, 140 and the busbar 110 can be improved.

Fig. 15 shows a variant of the clip element 160 of fig. 11. Here, the central portion 184 of the upper spring limb 180 and the transverse wing structures 186, 187 arranged thereon extend in the extension direction of the upper spring limb 170. At the same time, the end portions of the two transverse wing structures 186, 187, which project in the direction of extension of the upper spring limb 170, have suitable chamfers 188, the inclined faces of which form suitable ramps for simplifying the mounting of the clip element 160 on the preassembled arrangement (which comprises the busbar 110 and the current conducting plates 130, 140 of the conductor arrangement 120).

Fig. 16 shows a bus bar 110, which is designed for a plurality of conductor arrangements 120₁、120₂The bus bar of (1). Here, a conductor arrangement 120, each formed by two current-conducting plates₁、120₂Arranged at different contact portions 115 of the bus bar 110₁、115₂And by aloneOf the clip element 160₁、160₂Respectively, to a common bus bar 110.

While the present invention has been illustrated and described in greater detail by the preferred exemplary embodiments, the present invention is not limited to the disclosed examples. On the contrary, other variations and combinations of features may be derived therefrom by those skilled in the art without departing from the scope of the invention.

List of reference numerals

100 electrical connection arrangement

110 bus

Top side of 111 bus bar

112 bottom side of bus bar

113 bus bar

114 second side wall of bus bar

115 contact portion of bus bar

116 first contact area of bus bar

117 recesses in bus bar

118 bus bar structured surface

120 conductor arrangement

121 stacked body

122 second contact region of the conductor arrangement

123 third contact area

124 fourth contact area

125 contact pressure region of conductor arrangement

130 first current conducting plate

131 end portion of the first current-conducting plate

132 top side of the first current conducting plate

133 bottom side of the first current conducting plate

134 cup-shaped surface structure of first current-conducting plate

135 recess on top side of first current-conducting plate

136 structured surface of first current conducting plate

137 groove

138 raised portion

140 second current conducting plate

141 end portion of the second current-conducting plate

142 top side of the second current conducting plate

143 bottom side of the second current conducting plate

144 second current conducting plate

145 recess on top side of first current-conducting plate

147 groove

148 convex part

160 clip element

170 first spring limb

171 top side of the first spring limb

172 area of contact pressure of first spring limb

173 first part

174 central portion

175 end portion

176 latch structure

180 second spring limb

181 bottom side of second spring limb

182 contact pressure area of the second spring limb

183 first part

184 center section

185 end portion

186, 187 transverse wing structure

188 chamfer

189 latch element

190 connecting part