Electric plug bush type contactor

Abstract

The invention relates to an electrical plug bush contactor (1) for high-current applications, comprising a base body (2) for receiving a flat contactor, the base body having two side pieces (3a, 3b) which lie opposite one another parallel to one another, and two sheet bodies (4a) which lie opposite one another are arranged on the inner sides of the side pieces, the invention relates to a method for producing a metal strip, comprising a plurality of sheets, which are shaped as an inlay pad using a punch-bending technique, each sheet having a row of a plurality of sheets of the same kind in the insertion direction and having a plurality of rows of the same kind arranged parallel to one another perpendicular to the insertion direction, each sheet having two sections of the metal strip folded over one another, and wherein the two sections of the metal strip are arranged parallel to one another in the insertion direction. The mutually folded sections form an inclined part which rises in the insertion direction.

Description

Technical Field

[0001] The invention relates to an electric plug-in contactor for high current applications, which has a base body for accommodating a flat contactor, wherein the base body has two mutually opposite parallel side pieces, and wherein two mutually opposite laminae are arranged on the inner sides of the two side pieces. Background Art

[0002] Such a plug-in contactor is known from the German publication DE102004015345A1. In this plug-in contactor, the contact sheet is arranged on one side on the base of the contact sheet component. The contact sheet extends radially from the edge area of ​​the base to its center. The contact sheet is respectively formed with a contact section in the area of ​​its free end, and the above-mentioned contact section is abutted against the attached mating plug.

[0003] The disadvantage is that such an arrangement has only a relatively small number of contact lamellae. If the contact lamellae are made smaller in order to increase this number, the contact force acting on the flat contact by the lamellae that are tensioned on one side is also reduced at the same time.

[0004] Plug-in contactors with contact foils, especially in the form of foil baskets, usually have proportionally longer current paths to the attached mating plug, which results in power losses and thus a reduction in current carrying capacity.

[0005] During the insertion process, the contact part with the lamellae is often accompanied by a length expansion. In order to predetermine the space required for this, it is impossible to fix the lamellae on both sides without significantly increasing the insertion force. Summary of the invention

[0006] The object of the present invention is to provide an electrical plug-in contact which does not have the above-mentioned disadvantages or at least significantly reduces them.

[0007] According to the present invention, this task is solved in that the thin-sheet body is formed as an inlay pad using punching and bending technology, each thin-sheet body has a column composed of multiple similar thin sheets in the insertion direction and multiple similar rows arranged in parallel perpendicular to the insertion direction, each thin sheet has two sections of a metal strip folded over each other, and the folded sections form an inclined portion rising along the insertion direction.

[0008] Advantageously, such a laminar body formed as a setting mat can have a relatively large number of laminae per unit area and thereby form individual contact points for the inner surface of the side piece of the base body of the plug-in contact and for the mating plug.

[0009] As a result, not only the thermal resistance, but also the electrical resistance, is distributed over many points on a relatively large surface and is also kept low overall. Hot spots are effectively avoided as a result.

[0010] Furthermore, it is advantageous that a large number of current paths are produced between the mating plug and the base body, which current paths can also all be kept short.

[0011] It is also advantageous that the surface of the laminar body can be easily adapted to the size of the respective base body.

[0012] It is also advantageous that the lamella body can be fixed to the base body without problems with respect to the insertion direction, since the lamella can be pressed down to a certain extent during the insertion process without the lamella body expanding in length. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Advantageous embodiments and variants of the invention can be derived from the independent claims and the following description of the invention with the aid of the accompanying drawings.

[0014] Figure 1 A cross-sectional view showing an electrical plug-in contactor,

[0015] Figure 2 A single contact sheet is shown,

[0016] Figure 3 Show according to Figure 1 Side view of the plug-in contactor,

[0017] Figure 4 A side view showing another embodiment of a plug-in contactor,

[0018] Figure 5 Show according to Figure 4 Half of the plug-in contactor. DETAILED DESCRIPTION

[0019] Figure 1 A cross-sectional view of an electrical plug-in contact 1 according to the invention is shown. Such plug-in contacts 1 are usually components of a plug-in connector component (not shown here), in which one or more plug-in contacts 1 are arranged in a housing made of insulating material.

[0020] The plug-in contact 1 has a U-shaped bent metal strip as a base body 2, the U-legs of which form two side pieces 3a, 3b oriented parallel to one another. The base body 2 is connected to a metallic connecting region 11 which is not Figure 1 The arrows indicate the insertion direction 9 , along which a flat contact of a mating plug-in connector part (not shown here) can be inserted into the base body 2 .

[0021] Preferably, two lamellae 4a, 4b are arranged opposite each other on the two inner sides of the side pieces 3a, 3b of the base body 2 by riveting or welding. The two lamellae 4a, 4b, each made of a metal sheet by a punching and bending technique, are respectively made in one piece or in multiple pieces as inlay pads and each have a plurality of lamellae 5 that are respectively inclined opposite to the insertion direction 9. Each individual lamella 5 establishes a point-shaped electrical connection with a flat contact inserted into the base body 2. Figure 2 The contact point 15 is drawn to indicate the contact location.

[0022] Figure 3 The same plug-in contact 1 is shown in a side view. The connection region 11 connected to the U-shaped bent base body 2 is shown here purely by way of example as a welded connection. The connection region 11 can also be designed, for example, as a threaded connection, a soldered connection or a crimped connection.

[0023] Figure 4 Another embodiment of a plug-in contact 1' is shown. The base body 2' with its mutually parallel side pieces 3a', 3b' consists here of two similarly designed, mutually joined and connected base body halves 2a', 2b' which likewise together form a connection region 11'.

[0024] Figure 5 , a single half-body 2a' is shown together with a laminar body 4a arranged thereon. It can be seen particularly clearly here that the laminar body 4a, which is designed in one piece, is composed of a plurality of laminae 5 which are arranged in a plurality of rows 12 and in a plurality of columns 6.

[0025] In the embodiment shown, the laminar body 4a has, purely by way of example, five laminar rows 12, each of which has fifty-three laminar rows 5. The laminar rows 5 which are likewise connected to one another in the insertion direction 9 thus form fifty-three laminar columns 6 which are parallel to one another.

[0026] Figure 5 The lamella body 4a shown in FIG. 4 thus has two hundred and sixty-five individual lamellae 5. Figure 4 In the illustrated assembled plug-in connector, the total number of lamellae is even twice as large, and the reason for this is that here there is also a further lamellae body (not shown) which is arranged on the half-body 2b' which is opposite to the inside of the side piece 3b'.

[0027] This number of lamellae is of course purely exemplary, since on the one hand the size of the lamellae bodies 4a, 4b can be adjusted based on the size of the respective base body 2, 2' and on the other hand the size of the individual lamellae 5 and conversely the number of lamellae of the lamellae bodies 4a, 4b can thereby be adjusted to a large extent.

[0028] Figure 2 The shape of a single lamella 5 from one of the lamellae 4a, 4b is shown. The lamella 5 is formed by a folded metal strip 7, which has contact surfaces 13a, 13b at the beginning and end of the lamella 5. One of the contact surfaces 13b is formed by a simple and relatively long section of the metal strip 7, while the other contact surface 13a is significantly shorter in comparison and is connected in one piece to a similar contact surface 13a of an adjacent lamella row 6 (not shown here). This results in a relatively stable structure for each of the lamellae 4a, 4b.

[0029] On each lamella 5 which is not at the beginning or end of a lamella row 6, the contact surface 13a adjoins the contact surface 13b of another lamella 5 and vice versa. At least at the beginning or end of a lamella row 6, the contact surfaces 13a, 13b simultaneously form the fixing points of the lamella bodies 4a, 4b on the base body 2, 2'.

[0030] The two folded-over foil legs 7a, 7b of the metal strip 7 are elastically displaceably connected to the contact surfaces 13a, 13b via a rounded section of the metal strip 7 that forms a spring element 16a, 16b. The spring elements 16a, 16b can have the same or different spring rates.

[0031] The two lamella legs 7a, 7b are folded over each other at approximately 180° at the connecting point 14 and can either be Figure 2 They can be arranged parallel and one above the other as shown, or they can be arranged at a certain distance in order to increase the unit surface moment of inertia of the lamella 5. The folded lamella legs 7a, 7b form an inclined section 8 rising in the insertion direction 9, which respectively forms a point contact point 15 with the flat contact to be connected.

[0032] The two spring elements 16a, 16b on each lamella 5 make it possible for the lamella legs 7a, 7b to perform a tilting movement under pressure load, without changing the distance between the contact surfaces 13a, 13b.

[0033] This makes it possible to fix the laminar bodies 4a, 4b to the base bodies 2, 2', for example by means of riveting, without the force for pressing down the laminar bodies 5 being excessively increased, and thus also the insertion force of the flat contact to be connected being excessively increased.

[0034] After the lamellae 4a, 4b are mounted on the base body 2, all contact surfaces 13a, 13b are in contact with the inner surfaces of the side pieces 3a, 3b, thereby establishing an electrical connection with the base body 2. In this case, two current paths leading to adjacent contact surfaces 13a, 13b are respectively formed through the two lamellae legs 7a, 7b on each lamella 5.

[0035] This creates a very good electrical connection via a plurality of current paths, on the one hand between the laminar bodies 4 a, 4 b and the base body 2 , on the other hand between the laminar bodies 4 a, 4 b and an inserted flat contact, and ultimately also from the plug-in contact 1 to an inserted flat contact.

[0036] Reference numerals list

[0037] 1. 1' plug-in contactor

[0038] 2.2' matrix

[0039] 2a', 2b' half base

[0040] 3a, 3b, 3a', 3b' side pieces (U-shaped legs)

[0041] 4a, 4b thin sheet

[0042] 5 thin slices

[0043] 6 (thin slice) rows

[0044] 7 Metal Strips

[0045] 7a, 7b thin-sheet legs, sections

[0046] 8 Oblique part

[0047] 9 Insertion direction

[0048] 10 Insert opening

[0049] 11, 11' connection area

[0050] 12 (thin slices) rows

[0051] 13a, 13b contact surface

[0052] 14 Connection parts

[0053] 15 Touchpoints

[0054] 16a, 16b Spring element

Claims

1. An electrical plug-in contactor (1, 1') for high-current applications, comprising a base body (2, 2') for accommodating a flat contactor, in, The base body (2, 2') has two side members (3a, 3b; 3a', 3b') which are parallel to each other and opposite to each other, and wherein two mutually opposite thin-sheet bodies (4a, 4b) are arranged on the inner sides of the two side members (3a, 3b; 3a', 3b'), It is characterized in that The thin sheet bodies (4a, 4b) are formed as inlay pads by punching and bending technology. Each lamella body (4a, 4b) has a column (6) consisting of a plurality of similar lamellae (5) in the insertion direction and a plurality of parallel rows (12) of the same type arranged perpendicular to the insertion direction (9). Each sheet (5) has two sections (7a, 7b) of a metal strip (7) folded over one another, and The sections (7a, 7b) folded over one another form a ramp (8) rising in the insertion direction.

2. The electric plug-in contactor (1, 1') according to claim 1, It is characterized in that The folded sections (7a, 7b) are connected to a contact surface (13a, 13b) resting on the base body (2, 2') via spring elements (16a, 16b), wherein the spring elements (16a, 16b) are formed by rounded sections of the metal strip (7).

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