Crimp connection with longitudinal slit for crimping tabs

Abstract

The invention relates to an arrangement system (1) with an elongated metal part (3), wherein a further metal part (2) is provided and the two metal parts (2, 3) are connected by means of a crimp connection with crimp flaps (5), said elongated metal part (3) being arranged between the crimp flaps and being permanently fixed to the further metal part (2) and in electrical contact therewith after deformation of the crimp flaps (5), said elongated metal part (3) having a slit (6), in particular a longitudinal slit (6), in its end region with which it is inserted and fixed in the crimp connection region of the further metal part (2), the ends of the crimp flaps (5) penetrating into the slit after deformation.

Description

Technical Field

[0001] The present invention relates to an arrangement system of elongated metal parts according to the features of the preamble of claim 1, wherein an additional metal part is provided, and the two metal parts are connected by means of a crimp connection, wherein the crimp connection has crimp flaps, the elongated metal part is arranged between the crimp flaps, and is permanently fixed to and electrically contacted with the additional metal part after the crimp flaps are deformed. Background Technology

[0002] Crimp connections, for example, for arranging and electrically contacting an electrical conductor (i.e., an elongated metal part) with another metal part (i.e., a contact element), are known and have the advantages over material-locking connections (such as those achieved by brazing or laser welding, which are process-unstable and result in non-reproducible results) in that they are mechanically very stable and have good, reproducible electrical properties, especially in the case of mass production of such connections.

[0003] Although these desirable properties already exist, this invention relates to improving these properties. Summary of the Invention

[0004] Therefore, the object of the present invention is to improve known arrangement systems.

[0005] This objective is achieved through the features of claim 1.

[0006] According to the present invention, the elongated metal component has a longitudinal slit (a slit aligned with or extending along the longitudinal axis) in its end region (the end region by which the elongated metal component is inserted and fixed in the crimping connection region of the other metal component). The end of the crimping flap extends into the longitudinal slit after deformation and preferably rests against the elongated metal component. Due to the improved abutment and, if necessary, increased contact area, the stability of the connection is improved, and its electrical performance is also improved. Attached Figure Description

[0007] An embodiment of the invention is shown in the accompanying drawings and described below. Detailed Implementation

[0008] Figure 1 One arrangement system 1 shows an additional metal component, which is configured here as a contact element 2. The elongated metal component is a conductor 3, which is configured here as a flat, rigid electrical conductor (e.g., a component of a stamped grid). Alternatively, the conductor can be a round conductor or a stranded conductor, the end regions of which are flattened so that they have angular, preferably rectangular, end regions.

[0009] The contact element 2 has a crimping region 4, wherein each of the bases (not shown in detail) extends a crimping flap 5 and forms a receiving area for the end region of the electrical conductor 3 (generally an elongated metal part) in a manner known per se.

[0010] Figure 2 The diagram shows the end region of the electrical conductor 3 inserted into the crimping region 4, and the two crimping tabs 5 deformed in a manner known per se. Here, the end regions of the two crimping tabs 5 extend into a longitudinally extending slit 6 in the electrical conductor 3. Figure 5 and 6 Different geometries of the slit 6 in the electrical conductor 3 are shown. Preferably, the cross-section of the slit 6 is trapezoidal to increase the contact area of ​​the end regions where the two crimping tabs 5 enter.

[0011] For completeness, the additional metal component configured as contact element 2 is shown separately. Figure 4 middle.

[0012] Figure 2 The diagram also shows that at the end of the contact element 2, two additional flaps 7 may (but are not required) protrude from the crimping area 4. These flaps are typically needed if the elongated metal part (especially the electrical conductor 3) has an outer sheath, which is clamped by the two additional flaps 7 after they are deformed.

[0013] As long as these two additional winglets 7 exist, they can be removed after winglet 5 is deformed, where... Figure 3 This is illustrated in the text.

[0014] exist Figure 7 (Side view) and Figure 8 The arrangement according to the invention is shown again in the cross-sectional view of the crimping region 4. In particular, it can be seen that the end of the blade 5 extends completely into the slit 6 after deformation and abuts against the bottom of the slit 6 formed by the electrical conductor 3. Reference numeral 8 indicates the base of the additional metal part (in particular the contact element 2) from which the crimping blade 5 extends.

[0015] In a preferred construction design, the depth of the slit 6 is approximately one-third to half the height of the elongated metal part 3 (particularly the electrical conductor 3).

[0016] In terms of exemplary dimensions (the invention is by no means limited to these dimensions), the width of the elongated metal part 3 is approximately 0.8 mm to 1 mm, wherein the width at the bottom of the slit 6 is 0.05 mm to 0.08 mm. “mm” means millimeter.

[0017] The preferred application of this invention is in connections in the high voltage range of 100 volts or more, because a compact crimp connection with a large contact area between the two participating metal parts will have a positive effect on energy transfer within the connection area.

[0018] List of reference numerals

[0019] 1. Layout System

[0020] 2. Other metal components (especially contact elements)

[0021] 3. Slender metal parts (especially electrical conductors)

[0022] 4. Crimping area

[0023] 5. Press-fit fins

[0024] 6. Opening

[0025] 7. Other winglets

[0026] 8. Base

Claims

1. A system (1) comprising an arrangement of elongated metal parts (3), wherein an additional metal part (2) is provided, and the two metal parts (2, 3) are connected by means of a press-fit connection having press-fit flaps (5), the elongated metal part (3) being arranged between the press-fit flaps and being permanently fixed to and electrically contacted with the additional metal part (2) after the press-fit flaps (5) are deformed, characterized in that, The elongated metal component (3) has a slit (6) in its end region, particularly a longitudinal slit (6), which is used to insert and fix the elongated metal component to the crimped connection region of the other metal component (2), the end of the crimped flap (5) extending into the slit after deformation.

2. The arrangement system according to claim 1, characterized in that, The elongated metal part (3) is an electrical conductor, particularly the end region of the stamped mesh, and the other metal part (2) is a contact element.

3. The arrangement system according to claim 1 or 2, characterized in that, The cross-section of the slit (6) is trapezoidal.

4. The arrangement system according to any one of the preceding claims, characterized in that, The depth of the slit (6) is approximately one-third to half the height of the elongated metal part (3), particularly the electrical conductor (3).

5. The arrangement system according to any one of the preceding claims, characterized in that, The width of the elongated metal part (3) is about 0.8 mm to 1 mm, wherein the width at the bottom of the slit (6) is 0.05 mm to 0.08 mm.

Images