Connectors and components and electronic devices

Abstract

The present invention relates to a connecting device (100) for connecting a current-carrying element (300) to a rail element (200), comprising: a receiving body (110) on which the current-carrying element (300) can be fixed, wherein the receiving body (110) has a first transverse side (112) and a second transverse side (113) opposite to the first transverse side (112), and a first longitudinal side (114) and a second longitudinal side (115) opposite to the first longitudinal side (114). 115), a first latching arm (116) for fixing the connecting device (100) to the rail element (200), and a second latching arm (117) for fixing the connecting device (100) to the rail element (200), wherein the first latching arm (116) is connected to the first lateral side (112) of the receiving body (110), and wherein the second latching arm (117) is connected to the second lateral side (113) of the receiving body (110).

Description

Technical Field

[0001] The invention relates to a connecting device for connecting a current-carrying component to a rail element. The invention also relates to an assembly comprising a current-carrying component, a rail element and such a connecting device. The invention also relates to an electronic device. Background Art

[0002] Such a connecting device can be assembled onto the rail element along the mounting direction so as to connect the connecting device to the rail element in this manner. For example, a shielding terminal as a current-carrying element can be connected to the connecting device so that the current-carrying element can be fixed to the rail element via the connecting device.

[0003] Shield terminals are used to connect a shield conductor, for example, in the form of a shield braid surrounding the conductor cores of an electrical cable, to a discharge potential, in particular a ground potential, such as a busbar, a support rail, or a housing wall of an electrical installation (e.g., a switch cabinet). The contact must be durable, in particular heat-resistant and corrosion-resistant (even in aggressive environments), in order to ensure reliable grounding of the shield conductor over the service life of the electrical installation.

[0004] Rail elements can have different shapes. For example, a so-called C-shaped rail can have edge sections pointing inwards, with a gap opening formed between the edge sections. In contrast, other rail elements can be designed as support rails with outward-pointing flanges or edge sections, for example.

[0005] For example, DE 103 15 668 B4 discloses a connecting terminal having a conductor rail and a base section for snap-fitting onto a support rail. Summary of the Invention

[0006] The object of the present invention is to provide a connecting device for connecting a current-carrying element to a rail element, as well as a corresponding component and an electronic device, wherein a particularly reliable connection between the connecting device and the rail element can be achieved.

[0007] According to the invention, this object is achieved by means of the features of the independent claim. Advantageous embodiments and advantageous developments of the invention are specified in the dependent claims.

[0008] The connecting device according to the present invention comprises a receiving body to which a current-carrying element can be fastened, wherein the receiving body comprises a first transverse side and a second transverse side opposite the first transverse side, and a first longitudinal side and a second longitudinal side opposite the first longitudinal side. Furthermore, the connecting device comprises a first latching arm for fastening the connecting device to the rail element and a second latching arm for fastening the connecting device to the rail element, wherein the first latching arm is connected to the first transverse side of the receiving body, and wherein the second latching arm is connected to the second transverse side of the receiving body.

[0009] The connecting device is preferably made of a conductive material, in particular a metal material. However, it is also possible for the connecting device to be made of an insulating material, such as a plastic material. If the connecting device is made of a metal material, it can be a stamped and bent part. In order to accommodate and secure the current-carrying element, the connecting device has a receiving body. The receiving body preferably has one or more fixing members, by means of which the current-carrying element can be fixed to the receiving body. For example, the fixing member can be designed in the form of a drilled hole, into which a screw element or a rivet element of the current-carrying element can be inserted and fixed. In addition, the fixing member can also be configured in the form of a latching element that can form a latching connection with the current-carrying element. The receiving body is preferably designed to be flat or linear. The receiving body can have the shape of a plate. The receiving body can have a rectangular shape. The receiving body has two oppositely arranged lateral sides and two oppositely arranged longitudinal sides. The longitudinal sides are longer than the lateral sides. A latching arm is connected to each of the two lateral sides, by means of which the connecting device can be secured to the rail element. The latching arms are preferably connected on the lateral sides such that each latching arm forms a lateral extension of the receiving body. The receiving body is thus formed or arranged between the two latching arms. If the connecting device is placed on the rail element in the installation direction, the latching arms can latch onto the rail element from behind, thereby securing the connecting device to the rail element. In the secured state, the latching arms can exert a contact force on the rail element that acts opposite to the installation direction of the connecting device. The latching arms are preferably designed to be spring-elastic.

[0010] The first latching arm can be constructed in such a way that it forms a first linear contact portion with the rail element when it is fixed on the rail element, and / or the second latching arm can be constructed in such a way that it forms a second linear contact portion with the rail element when it is fixed on the rail element. The linear contact portion is preferably a linear contact portion, unlike the point contact portion. Therefore, the contact area of ​​the linear contact portion is larger than the area of ​​the point contact portion. The first linear contact portion formed by the first latching arm preferably extends parallel to the second linear contact portion formed by the second latching arm. The two linear contacts preferably extend transversely to the installation direction. Preferably, the two linear contacts extend parallel to the two lateral sides of the receiving body. A particularly reliable and detachable fixation of the connecting device on the rail element can be formed by the one or two linear contacts. In addition, the oxide layer on the rail element can be broken in the area of ​​the linear contact portion, thereby reducing the contact resistance.

[0011] Preferably, the first latching arm is connected to the receiving body over the entire length of the first transverse side of the receiving body. Further preferably, the second latching arm is connected to the receiving body over the entire length of the second transverse side of the receiving body. This allows for a particularly large connection surface between the receiving body and the two latching arms. The width of the two latching arms, particularly in the connection region of the two latching arms on the two transverse sides of the receiving body, is then as great as the length of the two transverse sides. This allows for a particularly high degree of stability in the connecting device.

[0012] The first latching arm can have a latching element for latching the rail element from behind. The latching element can be cut out of the latching arm, stamped out, or bent, for example, in the form of a tab or projection. The latching element preferably protrudes from the surface of the first latching arm toward the rail element. The latching element can form a point-like contact of the first latching element on the rail element.

[0013] Preferably, the latching element is formed in the region of the first linear contact. This allows for particularly good force introduction from the first latching arm to the rail element, thereby enabling reliable fastening of the connecting device to the rail element. The point-shaped contact formed by the latching element can overlap with the linear contact, so that the linear contact can be formed simultaneously with the point-shaped contact for fastening the first latching arm to the rail element.

[0014] In order to be able to remove the connecting device from the rail element again, the first latching arm can have a tool receiving area into which a tool, such as a screwdriver, can be inserted. With the help of the tool, the first latching arm can be deflected so that it can be released from the rear latching engagement with the rail element. The tool receiving area can be designed in the form of a notch or an opening.

[0015] The first latching arm preferably has a different shape than the second latching arm. Therefore, the type of latching of the first latching arm on the rail element from behind is preferably also configured differently from the type of latching of the second latching arm on the rail element from behind. Furthermore, the first latching arm and the second latching arm can be configured with different lengths.

[0016] The first latching arm is preferably curved into an S-shape. Thus, the first latching arm preferably has two bends along its length. The linear contact portion of the first latching arm may be formed between the two bends. Thus, in the first latching arm, the linear contact portion may be configured to be located approximately in the middle of the longitudinal extension of the first latching arm.

[0017] The second latching arm can be configured to be bent in a U-shape, for example. Therefore, the second latching arm preferably has only one bend along its length. The linear contact portion of the second latching arm is preferably formed at the free end of the second latching arm.

[0018] In addition to the two latching arms, the connecting device can include at least one supporting arm, which can have a supporting surface that, in the secured state, can form a point contact with the rail element. The supporting surface can preferably be placed on the rail element in the mounting direction to form the point contact. The supporting surface is formed on an edge surface of the supporting arm. The supporting arm is preferably connected to the receiving body via a 90° bend. The supporting arm preferably extends in a plane that is arranged at a right angle to the plane formed by the receiving body.

[0019] Preferably, a first supporting arm and a second supporting arm are provided, wherein the first supporting arm can be connected to a first longitudinal side of the receiving body, and wherein the second supporting arm can be connected to a second longitudinal side of the receiving body. The two supporting arms preferably each extend in a plane that extends parallel to one another. The two supporting arms are preferably arranged symmetrically with respect to one another on the two longitudinal sides of the receiving body.

[0020] Furthermore, the connecting device may include at least one retaining arm, which may have a U-shaped end section that, when the connecting device is fixed to the rail element, can form a point contact with the rail element. Therefore, the retaining arm preferably has a shape that is designed differently from the supporting arm. By means of the U-shaped end section, the retaining arm can encompass an area of ​​the rail element. The retaining arm is preferably connected to the receiving body via a 90° bend. The retaining arm preferably extends in a plane that is arranged at right angles to the plane formed by the receiving body.

[0021] Preferably, a first retaining arm and a second retaining arm are provided, wherein the first retaining arm can be connected to a first longitudinal side of the receiving body, and wherein the second retaining arm can be connected to a second longitudinal side of the receiving body. The two retaining arms preferably each extend in a plane that extends parallel to one another. The two retaining arms are preferably arranged symmetrically with respect to one another on the two longitudinal sides of the receiving body.

[0022] The first supporting arm and the second supporting arm can form a first fixing unit together with the first locking arm, and the first supporting arm and the second supporting arm can form a second fixing unit together with the second locking arm. Not only the first fixing unit, but also the second fixing unit each have a linear contact portion and a point contact portion with the rail element, preferably each have two point contacts. Therefore, the two fixing units are constructed on two opposite ends of the receiving body. The two fixing units can be used for fixing at two opposite fixing locations on the rail element. Preferably, the two retaining arms can at least partially overlap with the second locking arm laterally, so that the linear contact of the second fixing unit and the two point contacts formed by the two retaining arms can be carried out in the same plane. The two supporting arms preferably do not overlap with the first locking arm laterally. Therefore, the linear contact portion formed by the first locking arm is preferably formed in a plane different from the two point contacts of the first fixing unit formed by the two supporting arms.

[0023] Furthermore, the object according to the invention is achieved by means of an assembly comprising a current-carrying element, a rail element and a connecting device, wherein the connecting device is designed and improved as described above. The current-carrying element is fixed to the connecting device, and the connecting device is fixed to the rail element, so that the current-carrying element is held and fixed to the rail element via the connecting device.

[0024] The current-carrying element may be, for example, a conductor rail, a shielding terminal or a lead terminal.

[0025] Furthermore, the object according to the invention is achieved by means of an electronic device having at least one component designed and improved as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be described in detail below based on preferred embodiments with reference to the accompanying drawings.

[0027] The accompanying drawings show

[0028] Figure 1 A schematic diagram of a connecting device according to the invention is shown in a first side view,

[0029] Figure 2 The second side view shows Figure 1 A schematic diagram of the connection arrangement shown in FIG.

[0030] Figure 3Shown in a view from below Figure 1 A schematic diagram of the connection arrangement shown in FIG.

[0031] Figure 4 The rail element is provided with Figure 1 A schematic diagram of the connection device is shown in FIG.

[0032] Figure 5 Shown in Figure 4 A schematic cross-sectional view of the arrangement shown in FIG.

[0033] Figure 6 shows a schematic diagram of an assembly according to the invention,

[0034] Figure 7 A schematic diagram showing another assembly according to the present invention, and

[0035] Figure 8 A schematic diagram of another assembly according to the present invention is shown. DETAILED DESCRIPTION

[0036] Figures 1 to 3 Connecting device 100 is shown in various views. Connecting device 100 is formed from a metal part by being punched from a metal strip and bent into its shape. Thus, connecting device 100 is formed from an electrically conductive material. Connecting device 100 is a stamped and bent part. Connecting device 100 exhibits elastic or spring properties, at least in some areas.

[0037] However, the connection device 100 may also be formed of an insulating material such as a plastic material. Figure 8 In the illustrated construction, the connection device 100 is made of an insulating material. Figure 6 and Figure 7 In the illustrated embodiment, the connecting device 100 is made of a metal material.

[0038] The connecting device 100 has a receiving body 110, such as Figures 6 to 8 The current-carrying element 200 shown can be fixed to the receiving body. The receiving body 110 is flat or planar. The receiving body 110 has a substantially rectangular shape. The receiving body 110 has two fixing means 111, each in the form of a hole, by which the current-carrying element 200 can be fixed to the receiving body 110. The two fixing means 111 are arranged on the receiving body 110 at a distance from each other.

[0039] The receiving body 110 is defined by two transverse sides 112 , 113 and two longitudinal sides 114 , 115 . The two transverse sides 112 , 113 are formed at right angles to the two longitudinal sides 114 , 115 . The two longitudinal sides 114 , 115 have a greater length than the two transverse sides 112 , 113 .

[0040] The connecting device 100 has two latching arms 116, 117, by means of which the connecting device 100 can be fixed to the rail element 200, such as Figures 4 to 8 As shown, the two latching arms 116, 117 are formed integrally with the receiving body 110. Unlike the rectilinear receiving body 110, the two latching arms 116, 117 are formed to be curved. The two latching arms 116, 117 are formed to be spring-elastic.

[0041] A first latching arm 116 is connected to a first transverse side 112 of the receiving body 110. A second latching arm 117 is connected to a second transverse side 113 of the receiving body 110. Thus, the two latching arms 116, 117 are connected to opposite ends of the receiving body 110. These two latching arms 116, 117 form an extension of the receiving body 110 in the longitudinal direction of the receiving body 110. The receiving body 110 extends between the two latching arms 116, 117.

[0042] The first latching arm 116 is configured in such a way that, when it is fixed to the rail element 200 , it forms a first linear contact portion L1 with the rail element 200 . Figure 3 As shown in FIG. 1 . The second latching arm 117 is constructed so that when it is fixed to the rail element 200 , it forms a second linear contact portion L2 with the rail element 200 , as also shown in FIG. 1 . Figure 3 As shown in FIG. Two linear contact portions L1 and L2 are formed on the rail element 200 opposite each other. The two linear contact portions L1 and L2 extend parallel to each other. The linear contact portions L1 and L2 each form a linear contact with the rail element 200, wherein the linear contact extends along the width of the first latching arm 116 or along the width of the second latching arm 117. The first linear contact portion L1 is formed approximately in the middle along the length or longitudinal extension of the first latching arm 116. The second linear contact portion L2 is formed at the free end of the second latching arm 117.

[0043] The two latching arms 116, 117 are connected to the receiving body 110 over the entire length of the first transverse side 112 or the entire length of the second transverse side 113. Therefore, in the embodiment shown here, the length of the two linear contacts L1, L2 also corresponds to the length of the first transverse side 112 or the second transverse side 113 of the receiving body 110.

[0044] The first latching arm 116 is bent into an S-shape by having a first bend 118 and a second bend 119 spaced apart therefrom. A linear contact portion L1 is formed between the two bends 118 and 119.

[0045] Between the two bends 118 , 119 , the first latching arm 116 has a latching element 120 for latching the rail element 200 from behind, as in particular at Figure 5 As can be seen in the figure, the latching element 120 is designed as a tab cut out of the material of the first latching arm 116, wherein the tab is cut out from the plane of the first latching arm 116 toward the rail element 200. The latching element 120 is formed in the region of the first linear contact portion L1 of the first latching arm 116. In addition to the linear contact portion L1, the latching element 120 also forms a point-like contact portion with the rail element 200. The latching element 120 is formed on the first latching arm 116 approximately in the middle of the width of the first latching arm 116.

[0046] Furthermore, a tool receiving area 121 in the form of an opening is formed on the first latching arm 116 , into which a tool, such as a screwdriver, can engage in order to release the first latching arm 116 and thus the connecting device 100 from the rail element 200 .

[0047] Unlike the first latching arm 116, the second latching arm 117 has a U-shape, so that the second latching arm 117 includes only one bend 122. The linear contact portion L2 is formed away from the bend 122 or spaced apart from the bend 122, so that the linear contact portion L2 is formed at the free end of the second latching arm 117 or on the free transverse edge 123.

[0048] In addition to the two latching arms 116 , 117 , the connecting device 100 also has two support arms 124 , 125 and two retaining arms 126 , 127 in order to fasten the connecting device 100 to the rail element 200 .

[0049] By connecting the first support arm 124 to the first longitudinal side 114 and the second support arm 125 to the second longitudinal side 115, the two support arms 124, 125 are arranged opposite each other on the receiving body 110. The two support arms 124, 125 correspond to the first latching arm 116, so that the two support arms 124, 125 together with the first latching arm 116 form a first fixing unit 128. The latching element 120 is also part of the first fixing unit 128.

[0050] The two holding arms 126, 127 are arranged opposite one another on the receiving body 110, with the first holding arm 126 being connected to the first longitudinal side 114 and the second holding arm 127 being connected to the second longitudinal side 115. The two holding arms 126, 127 correspond to the second latching arm 117, so that the two holding arms 126, 127 together with the second latching arm 117 form a second fixing unit 129.

[0051] With the two supporting arms 124 , 125 and the two holding arms 126 , 127 , a point contact with the rail element 200 can be formed in each case.

[0052] The supporting arms 124 , 125 and the holding arms 126 , 127 are bent at an angle of 90° relative to the plane of the receiving body 110 , so that the supporting arms 124 , 125 and the holding arms 126 , 127 each span a plane perpendicular to the plane of the receiving body 110 .

[0053] The two supporting arms 124, 125 each have a supporting surface 130, with which a point contact with the rail element 200 can be formed in the fixed state. Figure 4 As can be seen in FIG, the two support arms 124 , 125 rest with their support surfaces 130 on the rail element 200 from above and are thereby pressed in the mounting direction A onto the rail element 200 .

[0054] On the other hand, the two holding arms 126, 127 each have a U-shaped bent end section 131, which can form a point contact with the rail element 200 when the connecting device 100 is fixed to the rail element 200, in such a way that the holding arms 126, 127 can surround the area of ​​the rail element 200 by means of the U-shaped bent end section 131, as shown in FIG. Figure 4 shown.

[0055] The two retaining arms 126, 127 are positioned so that they at least partially overlap laterally with the second latching arm 117, as shown in FIG. Figure 1 As can be seen in FIG, the linear contact L2 and the two point contacts formed by the two holding arms 126, 127 can be formed in one plane. The point contacts of the two holding arms 126, 127 act transversely to the installation direction A.

[0056] The two support arms 124 and 125 do not overlap laterally with the first latching arm 116. Therefore, the linear contact L1 formed by the first latching arm 116 and the two point contacts formed by the two support arms 124 and 125 are formed in different planes.

[0057] The two support arms 124 , 125 are each connected to the receiving body 110 via precisely one connecting section 132 .

[0058] In contrast, the two holding arms 126 , 127 are each connected to the receiving body 110 via precisely two connecting sections 133 , 134 .

[0059] The two supporting arms 124 , 125 and the two holding arms 126 , 127 are both designed to be spring-elastic.

[0060] Figure 4 and Figure 5The arrangement of the connecting device 100 on a rail element 200 is shown. Here, the rail element 200 is designed as a support rail. The rail element 200 comprises a first flange 210 directed outward and a second flange 211 directed outward. The connecting device 100 is held and fixed on the first flange 210 by a first fixing unit 128, and the connecting device 100 is held and fixed on the second flange 211 by a second fixing unit 129. A contact force K acting opposite to the mounting direction A is applied to the rail element 200 by two latching arms 116, 117, respectively, in order to hold the connecting device 100 on the rail element 200.

[0061] The first fixing unit 128 forms a linear contact L1 with the rail element 200 or the first flange 210 of the rail element 200 via the first latching arm 116 and three point contacts via the two support arms 124 , 125 and the latching element 120 .

[0062] The second fixing unit 129 forms a linear contact L2 with the rail element 200 or the second flange 211 of the rail element 200 via the second latching arm 117 and two point contacts via the two holding arms 126 , 127 .

[0063] The oxide layer on the rail element 200 can be destroyed by the contact force K and the linear contacts L1 , L2 as well as the point contacts, whereby a particularly low contact resistance between the rail element 200 and the connecting device 100 can be achieved.

[0064] The two latching arms 116 , 117 and the two retaining arms 126 , 127 overlap the two flanges 210 , 211 in the installation direction A. The two latching arms 116 , 117 and the two retaining arms 126 , 127 latch or embrace the two flanges 210 , 111 of the rail element 200 from behind. In contrast, the two supporting arms 124 , 125 rest with their supporting surfaces 130 on the first flange 210 .

[0065] Figures 6 to 8 An assembly 400 according to the invention is shown, each comprising a rail element 200 , a connecting device 100 and various current-carrying elements 300 , which are fastened to the connecting device 100 .

[0066] exist Figure 6 In the embodiment shown in FIG, the current-carrying element 300 is a shielding terminal.

[0067] exist Figure 7 In the embodiment shown in FIG, the current-carrying element 300 is a conductive track.

[0068] exist Figure 8In the embodiment shown in FIG, the current-carrying element 300 is a lead-out terminal. The connecting device 100 is formed of an insulating material. The connecting device 100 forms a latching support element.

[0069] Description of Reference Numerals

[0070] 100 Connecting device

[0071] 110 Receptor

[0072] 111 Fixing mechanism

[0073] 112 first lateral side

[0074] 113 second lateral side

[0075] 114 first longitudinal side

[0076] 115 second longitudinal side

[0077] 116 First locking arm

[0078] 117 Second locking arm

[0079] 118 First bend

[0080] 119 Second bend

[0081] 120 locking element

[0082] 121 Tool storage area

[0083] 122 bend

[0084] 123 horizontal edges

[0085] 124 First support arm

[0086] 125 Second support arm

[0087] 126 First holding arm

[0088] 127 Second holding arm

[0089] 128 First fixed unit

[0090] 129 Second fixed unit

[0091] 130 Support surface

[0092] 131 end section

[0093] 132 connection section

[0094] 133 connection section

[0095] 134 connection section

[0096] 200 track elements

[0097] 210 First flange

[0098] 211 Second flange

[0099] 300 current-carrying components

[0100] 400 components

[0101] L1 First linear contact part

[0102] L2 Second linear contact portion

[0103] A. Installation direction

[0104] K contact force

Claims

1. A connecting device (100) for connecting a current-carrying element (300) to a track element (200), comprising A receiving body (110) to which the current-carrying element (300) can be fastened, wherein: The receiving body (110) has a first transverse side (112) and a second transverse side (113) opposite the first transverse side (112), and a first longitudinal side (114) and a second longitudinal side (115) opposite the first longitudinal side (114). - a first latching arm (116) for securing the connecting device (100) to the rail element (200), and - a second latching arm (117) for fixing the connecting device (100) to the rail element (200), - wherein the first latching arm (116) is connected to a first transverse side (112) of the receiving body (110), and wherein the second latching arm (117) is connected to a second transverse side (113) of the receiving body (110), - wherein at least one retaining arm (126, 127) is provided, said retaining arm having an end section (131) bent into a U-shape, said end section forming a point contact with the rail element (200) in the fixed state, wherein a first retaining arm (126) and a second retaining arm (127) are provided, wherein the first retaining arm (126) is connected to a first longitudinal side (114) of the receiving body (110) and the second retaining arm (127) is connected to a second longitudinal side (115) of the receiving body (110).

2. The connection device (100) according to claim 1, characterized in that The first locking arm (116) is constructed so that when the first locking arm is in a fixed state on the rail element (200), it forms a first linear contact portion (L1) with the rail element (200), and / or the second locking arm (117) is constructed so that when the second locking arm is in a fixed state on the rail element (200), it forms a second linear contact portion (L2) with the rail element (200).

3. The connection device (100) according to claim 1 or 2, characterized in that The first locking arm (116) is connected to the receiving body (110) over the entire length of the first transverse side (112) of the receiving body (110), and / or the second locking arm (117) is connected to the receiving body (110) over the entire length of the second transverse side (113) of the receiving body (110).

4. The connection device (100) according to claim 1, characterized in that The first latching arm (116) has a latching element (120) for latching the rail element (200) from behind.

5. The connection device (100) according to claim 4, characterized in that The latching element (120) is formed in the region of the first linear contact (L1).

6. The connection device (100) according to claim 1, characterized in that The first latching arm (116) has a tool receiving area (121).

7. The connection device (100) according to claim 1, characterized in that The first latching arm (116) is configured to be curved in an S-shape.

8. The connection device (100) according to claim 1, characterized in that The second latching arm (117) is configured to be U-shaped.

9. The connection device (100) according to claim 1, characterized in that At least one supporting arm (124, 125) is provided, which has a supporting surface (130) with which a point contact with the rail element (200) is formed in the fixed state.

10. The connection device (100) according to claim 9, characterized in that A first supporting arm (124) and a second supporting arm (125) are provided, wherein the first supporting arm (124) is connected to a first longitudinal side (114) of the receiving body (110), and the second supporting arm (125) is connected to a second longitudinal side (115) of the receiving body (110).

11. The connection device (100) according to claim 10, characterized in that The first supporting arm (124) and the second supporting arm (125) together with the first locking arm (116) form a first fixing unit (128), and the first retaining arm (126) and the second retaining arm (127) together with the second locking arm (117) form a second fixing unit (129).

12. An assembly comprising a current-carrying element (300), a rail element (200) and a connecting device (100), by means of which the current-carrying element (300) is fixed to the rail element (200), wherein: The connecting device (100) is designed according to one of claims 1 to 11.

13. The assembly according to claim 12, characterized in that The current-carrying element (300) is a conductive rail, a shielding terminal or a lead terminal.

14. Electronic device comprising at least one component according to claim 12 or 13.

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