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EP-4740026-A1 - CONNECTION DEVICE

EP4740026A1EP 4740026 A1EP4740026 A1EP 4740026A1EP-4740026-A1

Abstract

The invention is a connection device for connecting a contact terminal, comprising - a socket body (12) having a first and a second branch (12a, 12b), wherein each of the branches (12a, 12b) has an insertion end (13a, 13b) and an inner end, with an insertion direction pointing from the insertion end (13a, 13b) towards the inner end for inserting a contact terminal (10), with a connection space portion between the branches (12a, 12b), being adapted for inserting a contact terminal (10), and with a respective reception space portion in each of the branches (12a, 12b), being open in the direction of the connection space portion and opposite thereto and being delimited by arched side walls, - two rollers (22), each being arranged in a respective reception space portion of the branches (12a, 12b), and a tension element arranged between the rollers to support them from the direction of the connection space portion, and - a respective elastic plate (16) attached to a respective tension element and arranged along the branches (12a, 12b) at the side thereof opposite the connection space portion to extend over the respective reception space portions in the insertion direction and in a direction opposite thereto.

Inventors

  • KÁDÁR, Zoltán
  • KÁDÁR, Csaba

Assignees

  • Equip-Test Kft.

Dates

Publication Date
20260513
Application Date
20240704

Claims (6)

  1. 1 . A connection device for connecting a contact terminal, the connection device comprising a socket body (12) having a first branch (12a) and a second branch (12b) arranged beside each other, wherein - the first branch (12a) and the second branch (12b) each has an insertion end (13a, 13b) and an inner end (13c, 13d), and an insertion direction (25) pointing from the insertion end (13a, 13b) towards the inner end (13c, 13d) is determined for inserting a contact terminal (10), and - a connection space portion (15) is formed between the first branch (12a) and the second branch (12b), the connection space portion (15) being open from the insertion end (13a, 13b) thereof and being adapted for inserting a contact terminal (10), c h a r a c t e r i s e d in that a first reception space portion (26a) and a second reception space portion (26b) each being open in the direction of the connection space portion (15) and opposite thereto are formed in the first branch (12a) and in the second branch (12b), respectively, and the connection device further comprising - arranged along the insertion direction (25) in the first reception space portion (26a) of the first branch (12a) and in the second reception space portion (26b) of the second branch (12b), respectively, o two rollers (22) having a cylinder mantle being characterizable by a roller radius and having a roller axis determined by the cylinder mantle, the roller axes being arranged transversely to the insertion direction (25), and o a tension element (24) between the two rollers (22), the tension element (24) supporting the two rollers (22) from the connection space portion (15), wherein, in the first branch (12a) and in the second branch (12b), the first reception space portion (26a) and the second reception space portion (26b), respectively, are delimited by arched side walls (28) at the cylinder mantles of the rollers (22), opposite the tension element (24), wherein a circle with a wall radius corresponds to each arched side wall (28), and the wall radius of the arched side walls (28) is larger than a roller radius of the rollers (22), - a respective elastic plate (16) attached to a portion of each of the respective tension elements (24) being opposite the connection space portion (15), and arranged along the first branch (12a) and the second branch (12b), respectively, at the side thereof being opposite the connection space portion (15) to extend over the first reception space portion (26a) and the second reception space portion (26b), respectively, in the insertion direction (25) and in a direction opposite thereto.
  2. 2. The connection device according to claim 1 , characterised in that each tension element (24) has - supporting surface portions (27) supporting the rollers (22) from the connection space portion (15) and converging from the direction of the connection space portion (15), and - a fixing surface portion (17) being opposite the connection space portion (15), wherein for each tension element (24) the elastic plate (16) is fixed to the fixing surface portion (17) of the tension element (24).
  3. 3. The connection device according to claim 1 or 2, characterised in that two elastic plates (16) arranged side by side are fixed to each tension element (24).
  4. 4. The connection device according to any of claims 1 -3, characterised in that the socket body (12) has a first socket body portion (12’) and a second socket body portion (12”) fixed to each other, wherein the first reception space portion (26a) and the second reception space portion (26b) is formed in the first socket body portion (12’) in more than 90%, and the second socket body portion (12”) is formed as a cover element closing the first reception space portion (26a) and the second reception space portion (26b).
  5. 5. The connection device according to any of claims 1 -4, characterised in that the socket body (12) and the rollers (22) are made of metal.
  6. 6. The connection device according to any of claims 1 -5, characterised by comprising a sense pin (30) arranged to extend through the socket body (12) into the connection space portion (15), adapted for sensing a connection of a contact terminal (10).

Description

CONNECTION DEVICE TECHNICAL FIELD The invention relates to a connection device for connecting a contact terminal. BACKGROUND ART Connecting and testing (high-current) sense terminals, contact elements may be necessary in various fields of industry. Accordingly, a plurality of previous connection devices is known. In CN 203690511 U as well as in CN 201238110 Y and CN 105896169 A such connectors are disclosed wherein a terminal is received by the help of rollers (in the former document a plurality of rollers is arranged on each side, while in the case of latter two documents a single roller is arranged on each side). In CN 203690511 U, some type of elasticity is provided for a block of the rollers. However, in the above- mentioned documents such rollers are applied that are rotatable about a connector shaft, the rollers being gripped in the connector by the connector shaft. Rollers gripped by their ends are also applied in JP 2000058213 A2 in a device adapted for connecting an IC module, providing spring suspension in a similar manner as in CN 203690511 U. A similar contacting approach is disclosed in CN 107785747 B, which explicitly describes contacting to a plate from one of the sides. In view of the known approaches, there is a need for a connection device with the help of which a contact terminal can be connected more effectively compared to the known connection devices. DESCRIPTION OF THE INVENTION The primary object of the invention is to provide a connection device which is free of the disadvantages of prior art approaches to the greatest possible extent. A further object of the invention is to provide a connection device with the help of which contact terminals can be connected more effectively compared to the known connection devices, as well as optionally also allowing for applying the connection device for testing. A still further object of the invention is to provide a connection device which, in an embodiment, becomes capable of repeatedly and safely performing high-current tests, for example in an industrial environment including high-volume automated production lines. This is achieved by fitting the connection device according to the invention to automatically operating work cylinders (i.e., it is operated by the work cylinders), making contact via the terminals (connection members) of given connectors and being pressed against the terminals by the help of the work cylinders for example preferably along a linearly guided forced path. Thereby, accurate contacting with the given product to be tested can be provided by guiding them onto the terminals of the specific high-current connector thereof. The invention relates to a connection device for connecting a contact terminal. Within this, the invention is a high-current connection device adapted for operational testing of contact terminals of high-current industrial connectors (of course, generally, the mechanism can be utilised not only for high-current applications). The objects of the invention can be achieved by providing the connection device according to claim 1. Preferred embodiments of the invention are defined in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS Preferred embodiments of the invention are described below by way of example with reference to the drawings, where Fig. 1 is a spatial drawing illustrating an embodiment of the connection device according to the invention together with a connecting element, Figs. 2A-2F are side view drawings illustrating the connection of a connecting element in the embodiment of Fig 1 of the connection device according to the invention, with the cover-like portion of the socket body being removed, Fig. 3 is an exploded figure illustrating the embodiment of Fig. 1 of the connection device according to the invention, Fig. 4 is an exploded drawing of a sense pin applicable with the connection device according to the invention, Fig. 5 shows another view of the embodiment of Fig. 1 of the connection device according to the invention showing a sense pin applicable therewith, Figs. 6A-6B show the embodiment of Fig. 1 in another spatial view and an in an underside-spatial view, Fig. 7 illustrates in a sectional drawing the portion of the embodiment of Fig. 1 showing the branches, with a sense pin extending between the branches, Fig. 8 is a sectional drawing illustrating displacements brought about in the embodiment of Fig. 1 as a result of the insertion of a connecting element, Figs. 9A and 9B are underside and side view drawings specifying a dimensioning according to an example of the embodiment of Fig. 1 , and Fig. 10 is a side view drawing illustrating the path of the electric current in the embodiment of the connection device according to the invention provided with a sense pin, with the cover removed. MODES FOR CARRYING OUT THE INVENTION The invention is a connection device for connecting a contact terminal. The contact terminal may also be considered a (contact) connecting (connection) e