阅读说明：本技术 接触装置和具有基板和布置在其上的接触装置的设备 (Contact device and arrangement having a substrate and a contact device arranged thereon ) 是由 F·鲍尔 A·贝恩哈特 于 2019-08-27 设计创作，主要内容包括：本发明涉及一种接触装置,该接触装置具有平坦的接触元件(1),该接触元件具有顶侧(3)和底侧(2),该接触元件的厚度从顶侧(3)到底侧(2)朝向其三个边缘(4)减小,并且该接触装置具有连接元件(5),该连接元件电连接和机械连接到接触元件(1),并且与距接触元件的顶侧(3)相比,该连接元件更远离接触元件(1)的底侧(2)。本发明还涉及一种设备,该设备具有基板(8)和布置在其上的接触装置,以及形成在接触元件(1)和基板(8)的区域上的导体轨道(9)。(The invention relates to a contact arrangement having a flat contact element (1) with a top side (3) and a bottom side (2), the thickness of which decreases from the top side (3) to the bottom side (2) towards three edges (4) thereof, and having a connecting element (5), which is electrically and mechanically connected to the contact element (1) and which is further away from the bottom side (2) of the contact element (1) than from the top side (3) of the contact element. The invention also relates to a device having a substrate (8) and a contact arrangement arranged thereon, and conductor tracks (9) formed on the contact element (1) and on the region of the substrate (8).)

1. A contact device, comprising: a flat contact element (1) having an upper side (3) and a lower side (2), the thickness of which decreases from the upper side (3) to the lower side (2) towards its three edges (4); and having a connecting element (5) which is electrically and mechanically connected to the contact element (1) and which is further away from the lower side (2) of the contact element (1) than from the upper side (3) of the contact element.

2. Contact arrangement according to claim 1, wherein the contact element (1) is of rectangular form, its lower side (2) is of planar form and its upper side (3) is of convex form.

3. The contact arrangement according to claim 2, wherein the upper side (3) of the contact element (1) is planar in a central region and extends parallel to the lower side (2) and straight in an edge region, such that the thickness of the edge region constantly tapers towards the edge (4) of the lower side (2).

4. Contact arrangement according to any one of claims 1 to 3, wherein at least a part of the connection element (5) and a part of the contact element (1) are surrounded by a plastic housing (6).

5. Contact arrangement according to claim 4, wherein the plastic housing (6) has a hole (7) for fastening to a base plate (8).

6. A device has a substrate (8) and a contact arrangement arranged thereon, and conductor tracks (9) formed on the contact element (1) and on regions of the substrate (8).

7. The device according to claim 6, wherein the conductor track (8) is painted on.

Background

The resistive structures for electrical heating devices are usually designed as conductor tracks on a substrate or a film. There is often a problem of contact with these conductor tracks, in particular the problem of connecting leads to them. The contact is particularly problematic when high currents flow, as is the case with heating wires or cables.

Typical joining methods are brazing, welding or pressing. However, these methods all have disadvantages.

Disclosure of Invention

It is an object of the invention to provide a contact arrangement and an apparatus having a substrate and a contact arrangement arranged thereon, which can be produced easily and reliably.

This object is achieved by a contact arrangement as claimed in claim 1 and an apparatus having a substrate and a contact arrangement arranged thereon as claimed in claim 6. Advantageous developments are indicated in the dependent claims.

The contact arrangement thus has a flat contact element with an upper side and a lower side, the thickness of the contact element decreasing from the upper side to the lower side towards at least three edges thereof, and a connection element which is electrically and mechanically connected to the contact element and which is further away from the lower side of the contact element than from the upper side of the contact element.

Due to this beveled shape of the contact element, it can be arranged with its underside over the entire surface area of the substrate, while its upper side is inclined from the center to the edge and towards the substrate, and the thickness of the contact element is thus gradually thinned, so that the conductive layer applied to the substrate and to the upper side of the contact element does not have to cross the edge.

In this way, the conductive layer to be applied to the substrate can be connected to the contact element in the same operation. The electrically conductive layer may be applied, for example, by means of cold gas spraying.

In an advantageous embodiment of the contact arrangement according to the invention, the contact element is of rectangular form, its lower side being of planar form and its upper side being of convex form.

In one development, the upper side of the contact element can be planar in a central region and extend parallel to the lower side and be straight in edge regions, so that the thickness of the edge regions tapers constantly towards the edges of the lower side. This is a form of contact element which is easy to produce.

In an advantageous form of the contact arrangement, at least a part of the connecting element and a part of the contact element are surrounded by a plastic housing.

The plastic housing serves for simple fastening of the contact arrangement and for strain relief.

For this purpose, it may advantageously have holes for fastening to the base plate, for example by means of screws.

The object is also achieved by a device having a substrate and a contact arrangement arranged on the substrate, and conductor tracks formed on the contact elements and on the area of the substrate.

In an advantageous manner, the conductor tracks can be sprayed on. This results in both the conductor track and its connection to the contact device in only one operation.

Drawings

The invention is explained in more detail below on the basis of exemplary embodiments and with the aid of the drawings, in which:

figure 1 shows a side view of a contact arrangement according to the invention,

figure 2 shows a front view of a contact arrangement according to the invention,

FIG. 3 shows a plan view of a contact arrangement according to the invention, and

fig. 4 shows an apparatus according to the invention.

Detailed Description

Exemplary embodiments of a contact arrangement according to the invention are shown in various views in fig. 1 to 3. The conductive contact element 1 has a lower side 2 and an upper side 3 and an edge 4. Starting from the central part of the upper side 3, the upper side 3 extends obliquely towards the edge 4, so that there is reached a minimum thickness of almost zero and thus a continuous transition from the substrate 8 (fig. 4) to the contact element 1 is obtained.

The contact element 1 is mechanically and electrically connected to a connection element 5, which connection extends within a plastic housing 6. The connection element 5 is intended for connection to a cable or the like.

A plastic housing 6 encloses a part of the contact element 1 and at least a part of the connection element 5. In the exemplary embodiment shown, this protrudes from the plastic housing 6.

The plastic housing 6 has lateral lugs in which holes 7 are provided for fixing the contact means with screws or rivets to, for example, a base plate 8.

Fig. 4 shows an apparatus with contact means arranged on a substrate 8. An insulating layer 10 is applied between the substrate 8 and the contact means.

The conductor track 9 is applied to the free insulation layer 10 and the upper side 3 of the contact element 1 of the contact arrangement, which can be performed, for example, by means of cold gas spraying.

The form of the contact arrangement according to the invention makes it possible to produce the conductor track 9 and its connection to the contact element 1 of the contact arrangement in one operation.