CN117673801A

CN117673801A - Contact element

Info

Publication number: CN117673801A
Application number: CN202311135873.9A
Authority: CN
Inventors: H·乔登; P·谢弗
Original assignee: Klonberg And Schubert Motor Co ltd
Current assignee: Klonberg And Schubert Motor Co ltd
Priority date: 2022-09-08
Filing date: 2023-09-05
Publication date: 2024-03-08
Also published as: DE102022122828B3

Abstract

The invention relates to a contact element (1) for producing an electrical plug connection with a flat contact, wherein the contact element (1) has a connecting element (2) and at least one contact part (3) formed on the connecting element (2). Wherein the contact part (3) comprises a receiving space for holding and receiving a flat contact between a spring contact fork (31) and two contact arms (33), wherein the spring contact fork (31) comprises a connecting web (312) and two spring arms (311), wherein the connecting web (312) of the contact part (3) is formed directly on the connecting element (2), wherein two contact arms (33) are formed on the connecting web (312), wherein a point contact for the flat contact can be produced between the spring arms (311) and the contact arms (33) by means of the respective spring arms (311) and the respective contact arms (33).

Description

Contact element

Technical Field

The invention relates to a contact element for producing an electrical plug connection with a flat contact, wherein the contact element has a connecting element and at least one contact section formed on the connecting element.

Background

A large number of contact elements for producing an electrical plug connection with flat contacts are known from the prior art. In particular in the case of contact elements having at least two contact portions for forming a 4-point contact and a contact opening therebetween, the tolerances of the two contact portions often cannot compensate for one another, so that in the worst case only two to three contact points can exert the necessary contact forces. In addition, the contact point on the contact portion is not limited to produce a linear contact.

Disclosure of Invention

It is therefore an object of the present invention to provide a contact element for producing an electrical plug connection with a flat contact, wherein 4 point contacts can be produced and the corresponding point contacts are optimized.

This object is achieved by a combination of features according to claim 1.

According to the invention, a contact element for producing an electrical plug connection with a flat contact is proposed. The contact element has a connecting element and at least one contact formed on the connecting element. Wherein a receiving space is included between the resilient contact fork and the two contact arms for holding the flat contact, and wherein the resilient contact fork comprises a connecting web and two spring arms. The connecting web of the contact is formed directly on the connecting element and two contact arms are formed on the connecting web. Furthermore, a point contact for the electrical flat contact can be produced by means of a corresponding spring arm and a corresponding contact arm.

This has the advantage that by means of the spring arms of the contact fork, a double contact is achieved to compensate for manufacturing tolerances between the two, in particular rigid contact arms. In this way, the spring arm and the contact arm are ensured to be in contact with the flat contact even if the contact arm is misaligned due to production.

In an advantageous embodiment variant, only two spring arms are elastically deflectable when the flat contact is inserted into the receiving space, while the contact arms remain in their position, in particular in the contact direction, relative to the spring arms, forming a point-like sliding contact, in particular two pairs of diametrically opposite point contacts. In this way, the sliding contact achieves a cleaning effect, in which, for example, an oxide layer on the flat contact is scraped off. Furthermore, a defined contact system is provided.

The contact elements are preferably designed such that a point-contact, in particular rounded, projection for forming the contact arm side is formed on the contact edge of the respective contact arm. This provides an optimized point contact.

In an exemplary embodiment of the invention, it is provided that the contact arm is formed as a substantially flat blade contact. This design is particularly suitable for point contact between the contact arm and the flat contact.

Furthermore, in an advantageous embodiment, the connecting elements each have a recess at the transition to the connecting web of the contact. This has the advantage that an additional spring deflection of the contact element is provided in the region of the connecting web.

In a further advantageous variant, it is provided according to the invention that the respective recess extends parallel to the connecting web for a predetermined extension. The recess is for example formed round or has rounded ends. The spring deflection of the contact element in the region of the connecting web can be adjusted or adapted to the respective application by means of a predetermined extension of the respective recess.

The contact element according to the invention is in one embodiment variant designed such that the respective spring arm on the connecting web is designed to be angled in the direction of the contact arm. Thus, a pretension for clamping the accommodating flat contact is produced.

It is also advantageous if the free ends of the respective spring arms are angled in such a way that they extend away from the contact arms and thereby form contact tips for point contact. The contact tip ensures that a point contact can be established. For example, the contact tip may also be an arched or curved deformation. This has the advantage that the point contact for flat contacts is improved.

In a preferred embodiment of the invention, the spring arms are arranged in a V-shape on the connecting web. In particular, the respective spring arm tapers along its longitudinal extension. In this way, the force distribution of the pressure forces in the flat contact and in the point contact direction is optimized.

In an advantageous embodiment variant, the respective contact arm is arranged on the connecting web by means of a contact web, in particular by means of a rounded transition. In addition, in an advantageous embodiment, the respective contact webs extend at substantially right angles or obtuse angles to the longitudinal extension and the transverse extension of the connecting webs. Furthermore, in an advantageous variant, it is provided according to the invention that an S-shaped transition is formed between the respective contact web and the respective contact arm. In an exemplary embodiment of the invention, it is provided that the respective contact arm extends at an obtuse angle to the longitudinal extent and to the transverse extent of the connecting web. This improves the arrangement of the respective contact arm and ensures that the arrangement is rigid with respect to the spring arm or that the contact arm remains in its position with respect to the spring arm.

In a further advantageous variant, it is provided according to the invention that the respective contact arm is embossed. In this way edges in the contact area are avoided.

In a preferred embodiment of the invention, the contact element is designed as one piece or as one piece. Furthermore, the connecting element is preferably plate-shaped, in particular rectangular or square. In this case, the contact element is in particular stamped from one component.

The features disclosed above may be combined as desired, as long as this is technically feasible and they are not contradictory to each other.

Drawings

Further advantageous refinements of the invention are characterized in the dependent claims or are presented in more detail in the following description of a preferred embodiment of the invention in connection with the description with reference to the accompanying drawings. The drawings show:

FIG. 1 is a perspective view of a contact element for making an electrical plug connection with a flat contact;

FIG. 2 is a side view of a contact element for making an electrical plug connection with a flat contact;

FIG. 3 is a front view of a contact element for making an electrical plug connection with a flat contact; and

fig. 4 is a top view of a contact element for making an electrical plug connection with a flat contact.

Detailed Description

The drawings are schematic examples. Like reference numerals in the drawings denote like functional and/or structural features.

Fig. 1 shows a perspective view of a contact element for producing an electrical plug connection with a flat contact. The contact element 1 has a connection element 2 and a contact portion 3 formed on the connection element 2. The contact portion 3 comprises a receiving space between the resilient contact fork 31 and the two contact arms 33 for receiving the flat contact in a clamping manner. In addition, the resilient contact fork 31 comprises a connecting web 312 and two spring arms 311. The connecting web 312 of the contact part 3 is formed directly on the connecting element 2, and the two contact arms 33 are formed on the connecting web 312. Further, point contacts for the electrical flat contacts can be formed by the respective spring arms 311 and the respective contact arms 33.

When the flat contact is inserted into the receiving space, only two spring arms 311 can be deflected elastically, while the contact arm 33 remains in its position relative to the spring arms 311 in the contact direction, forming a point-like sliding contact, in particular two pairs of radially opposite point contacts.

The contact element 1 is designed as one piece. The connector 2 has a plate shape and a rectangular shape. The connecting elements 2 each have a recess 21 at the transition to the connecting web 312 of the contact 3, which recess 21 extends parallel to the connecting web 312 by a predetermined extension length. Thus, an additional spring deflection of the contact element 1 is provided in the region of the connecting web 312. The recesses 21 are formed in a circular shape and the spring deflection of the contact element 1 in the region of the connecting web 312 can be adjusted or adapted to the application by means of a predetermined extension of the respective recess 21.

Furthermore, the respective contact arm 33 is arranged on the connecting web 312 by means of a contact web 331 having a rounded transition. Furthermore, an S-shaped transition is formed between the respective contact web 331 and the respective contact arm 33. In addition, the corresponding contact arm 33 is embossed. A particularly rounded projection is also formed on the contact edge 332 of the respective contact arm 33 for forming a point contact on the contact arm side. The contact arms 33 are essentially designed as flat blade contacts.

After fig. 2 to 4 show the contact element shown in fig. 1, only further features are discussed below.

Fig. 2 shows a side view of a contact element 1 for producing an electrical plug connection with a flat contact. The respective spring arm 311 is angled on the connecting web 312 in the direction of the contact arm 33. The free end of each spring arm 311 is angled in such a way that it extends away from the contact arm 33 and thereby forms a contact tip 313 for point contact.

Fig. 3 shows a front view of a contact element 1 for producing an electrical plug connection with a flat contact. The spring arms 311 are arranged in a V-shape on the connecting web 312. In particular, the two mutually directed inner edges of the respective spring arms 311 form a V-shape.

Fig. 3 shows a top view of a contact element 1 for producing an electrical plug connection with a flat contact. The respective contact webs 331 extend at an obtuse angle to the longitudinal extension and the transverse extension of the connecting web 312. Further, the respective contact arms 33 extend at an obtuse angle to the longitudinal extension and the transverse extension of the connecting web 312.

The practice of the invention is not limited to the preferred exemplary embodiments given above. On the contrary, many variants using the solution shown are conceivable, even in the case of radically different designs.

Claims

1. A contact element (1) for producing an electrical plug connection with a flat contact, wherein the contact element (1) has a connection element (2) and at least one contact part (3) formed on the connection element (2),

wherein the contact part (3) comprises a receiving space between the elastic contact fork (31) and the two contact arms (33) for holding and receiving the flat contact,

wherein the resilient contact fork (31) comprises a connecting web (312) and two spring arms (311),

wherein the connecting web (312) of the contact (3) is formed directly on the connecting element (2),

wherein the two contact arms (33) are formed on the connecting web (312),

wherein a point contact for the flat contact can be produced between the spring arm (311) and the contact arm (33) by means of the respective spring arm (311) and the respective contact arm (33).

2. Contact element (1) according to claim 1, wherein only the two spring arms (311) are elastically deflectable when the flat contact is inserted into the receiving space, while the contact arm (33) is held in its position relative to the spring arms (311) forming a punctiform, in particular two pairs of diametrically opposite punctiform contacts.

3. Contact element (1) according to claim 1 or 2, wherein a particularly rounded projection is formed on the contact edge (332) of the respective contact arm (33), which serves to form the contact arm side point contact.

4. A contact element (1) according to any one of claims 1 to 3, wherein the contact arm (33) is formed substantially as a flat blade contact.

5. The contact element (1) according to any one of the preceding claims, wherein the connecting element (2) has a corresponding recess (21) at the transition to the connecting web (312) of the contact portion (3).

6. The contact element (1) according to claim 5, wherein the respective recess (21) extends parallel to the connecting web (312) with a predetermined extension length.

7. The contact element (1) according to any one of the preceding claims, wherein the respective spring arm (311) on the connecting web (312) is formed angled in the direction of the contact arm (33).

8. The contact element (1) according to any one of the preceding claims, wherein the free ends of the respective spring arms (311) are angled such that they extend away from the contact arm (33) and thereby form a contact tip (313) for point contact.

9. The contact element (1) according to any one of the preceding claims, wherein the spring arms (311) are arranged in a V-shape on the connecting web (312), wherein the respective spring arms (311) taper in particular along their longitudinal extension.

10. The contact element (1) according to any one of the preceding claims, wherein the respective contact arm (33) is arranged on the connecting web (312) by means of a contact web (331), in particular by means of a rounded transition.

11. The contact element (1) according to claim 10, wherein the respective contact web (331) extends to the longitudinal extension and the transverse extension of the connecting web (312) at substantially right angles or obtuse angles.

12. Contact element (1) according to claim 11 or 12, wherein an S-shaped transition is formed between the respective contact web (331) and the respective contact arm (33).

13. The contact element (1) according to any one of the preceding claims, wherein the respective contact arm (33) extends at an obtuse angle to a longitudinal extent and to a lateral extent of the connecting web (312).

14. The contact element (1) according to any one of the preceding claims, wherein the respective contact arm (33) is embossed.

15. Contact element (1) according to any of the preceding claims, wherein the contact element (1) is designed as one piece, the connecting element (2) preferably being plate-shaped, in particular rectangular or square.