Plug-type connection having a conical clamping ring clamping a conical collet

Abstract

The present invention relates to a plug-type connection (1) for an electrical connection between a first line (2) and a second line (3), comprising a contact bolt (4) which can be connected to the first line (2), a collet (5) which can be connected to the second line (3) and has a cutout (6) for inserting the contact bolt (4), has a conical collet outer face (7) and has at least n slots (8) for forming n clamping jaws, where n1, and a clamping ring (9) with a conical clamping ring inner face (10) against which the conical collet outer face (7) bears, wherein the at least one clamping jaw can be clamped against the contact bolt (4) as a result of a relative movement between the collet (5) and the clamping ring (9).

Claims

1. A plug connection (1) for an electrical connection between a first line (2) and a second line (3), the plug connection comprising: a contact stud (4) configured to be connected to the first line (2), a collet (5) configured to be connected to the second line (3), said collet having a recess (6) configured to receive the contact stud (4), a conical collet outer surface (7), and at least n slots (8) for forming n clamping jaws, with n1, and a clamping ring (9) having a conical clamping ring inner surface (10) against which the conical collet outer surface (7) lies, wherein at least one of the clamping jaws is configured to be clamped against the contact stud (4) by a relative movement between the collet (5) and clamping ring (9), wherein the contact stud (4) includes a proximal end configured to be connected to the first line, and a distal end configured to extend into the collet (5), wherein the contact stud (4) extends along an elongate direction from the proximal end toward the distal end, and wherein the conical collet outer surface (7) is configured to converge radially inwardly toward the contact stud (4) in the elongate direction when distal end of the contact stud (4) is extended into the collet (5).

2. The plug connection as claimed in claim 1, characterized in that the contact stud (4) and the collet (5) are embodied in such a manner that the collet (5) is pressed into the clamping ring (9) when inserting the contact stud (4) into the recess (6).

3. The plug connection as claimed in claim 2, characterized by a receiving arrangement (11), wherein the clamping ring (9) is fixedly arranged in the receiving arrangement (11) and the collet (5) is inserted in the clamping ring (9) in a movable manner.

4. A motor vehicle assembly comprising at least one plug connection (1, 100) as claimed in claim 1.

5. The motor vehicle assembly as claimed in claim 4, wherein the plug connection (1, 100) is arranged on a power electronics system and/or an electrical energy storage device and/or an electrical drive system of the motor vehicle assembly.

6. The plug connection as claimed in claim 2, characterized by a receiving arrangement (11) embodied from a synthetic material, wherein the clamping ring (9) is fixedly arranged in the receiving arrangement (11) and the collet (5) is inserted in the clamping ring (9) in a movable manner.

7. A plug connection (1) for an electrical connection between a first line (2) and a second line (3), the plug connection comprising: a contact stud (4) configured to be connected to the first line (2), a collet (5) configured to be connected to the second line (3), said collet having a recess (6) configured to receive the contact stud (4), a conical collet outer surface (7), and at least n slots (8) for forming n clamping jaws, with n1, a clamping ring (9) having a conical clamping ring inner surface (10) against which the conical collet outer surface (7) lies, wherein at least one of the clamping jaws is configured to be clamped against the contact stud (4) by a relative movement between the collet (5) and clamping ring (9), and a receiving arrangement (11), wherein the clamping ring (9) is fixedly arranged in the receiving arrangement (11) and the collet (5) is configured to be inserted in the clamping ring (9) in a movable manner.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Exemplary embodiments of the invention are described in detail hereinunder with reference to the accompanying drawing. In the drawings:

(2) FIG. 1 illustrates multiple views of a plug connection in accordance with the invention in accordance with a first exemplary embodiment,

(3) FIG. 2 illustrates a sectional view of the plug connection in accordance with the invention in accordance with the first exemplary embodiment,

(4) FIGS. 3 and 4 illustrate a plug connection in accordance with the invention in accordance with a second exemplary embodiment, and

(5) FIGS. 5 and 6 illustrate a plug connection in accordance with the invention in accordance with a third exemplary embodiment.

DETAILED DESCRIPTION

(6) FIG. 1 illustrates in various states the plug connection 1 in accordance with the first exemplary embodiment. The plug connection 1 is used as a disconnectable electrical connection between a first line 2 and a second line 3. The first line 2 is connected to a contact stud 4. The second line 3 is connected to a collet 5. In particular, it is evident in the sectional view in FIG. 1 that the collet 5 comprises a recess 6. The recess 6 corresponds in its dimensions to the contact stud 4 so that a planar contacting arrangement is produced in the case of an inserted contact stud 4.

(7) Moreover, the collet 5 comprises a conical collet outer surface 7. There is at least one slot 8 in this collet outer surface 7. At least one clamping jaw of the collet 5 is produced by means of the slot 8.

(8) Moreover, the plug connection 1 comprises a clamping ring 9 having a conical clamping ring inner surface 10. The clamping ring 9 plugs onto the collet 5.

(9) A base 15 of the recess 6 is closed so that the contact stud 4 stands on the base 15. As a consequence, when inserting the contact stud 4, the collet 5 moves downwards and consequently relative to the clamping ring 9. The at least one clamping jaw is braced against the contact stud 4 as a result of the conical surfaces 7,10.

(10) FIG. 2 illustrates in detail the plug connection 1 according to the first exemplary embodiment. With reference to this illustration, it is evident that the clamping ring 9 is arranged fixed in a receiving arrangement 11. The receiving arrangement 11 is by way of example a synthetic material, wherein the clamping ring 9 is injection molded. The receiving arrangement 11 is in part closed on the upper side by means of a cover 12. A hole is provided in the cover 12 in order to plug in the contact stud 4. The cover 12 is embodied in such a manner that the collet 5 can move to a certain extent with respect to the clamping ring 9. The cover 12 also simultaneously provides a loss-proof receiving arrangement of the collet 5.

(11) It is preferably provided that multiple plug connections 1 are combined in one plug. For this purpose, the housing 13 that is illustrated schematically can be used. In order to compensate for tolerances in the multiple plug connections 1 that are arranged adjacent to one another, the opposite-lying ends of the contact stud 4 and the collet 5 are supported by way of resilient elements 14 with respect to the housing 13.

(12) Moreover, FIG. 2 illustrates the base 15 against which the contact stud 4 presses in order to move the collet 5 relative to the clamping ring 9 at the same time as inserting the contact stud 4. In an alternative thereto, it is also possible that the contact stud 4 or an element that is fixedly connected to the contact stud 4 presses the upper edge 16 of the collet 5. Furthermore, it is possible that within the recess 6 a corresponding shoulder is provided against which the contact stud 4 presses.

(13) FIGS. 3 and 4 illustrate the plug connection 1 in accordance with the second exemplary embodiment. Identical or functionally identical components in the first exemplary embodiment and second exemplary embodiment are provided with identical reference numerals.

(14) In the second exemplary embodiment, the clamping ring 9 is plugged on from the same side as the contact stud 4. Advantageously, the clamping ring 9 is pressed downwards at the same time as inserting the contact stud 4 and consequently said clamping ring is pressed onto the collet 5. Accordingly, the contact stud 4 does not stand on the base 15.

(15) In the second exemplary embodiment, when plugging in the plug connection 1, the contact stud 4 can press against the clamping ring 9. In addition or in an alternative thereto, the collet 5 is pressed in the opposite direction, in other words against the collet ring 9.

(16) FIGS. 5 and 6 illustrate the plug connection 100 in accordance with the third exemplary embodiment. Also in the third exemplary embodiment, clamping jaws are braced and simultaneously a planar contacting arrangement is produced between the contact partners. In the third exemplary embodiment, a contact sleeve 104 is used in lieu of the contact stud 4. A clamping stud 105 is inserted into the contact sleeve 104. This clamping stud 105 corresponds in its function to the function of the collet 5. The clamping studs 105 in the illustrated exemplary embodiment comprise four slots 108. These slots 108 divide the clamping stud 105 into four clamping jaws. A conical clamping stud inner surface 107 is located in the clamping stud 105. A mandrel 109 is inserted into the clamping stud inner surface 107 so as to push the clamping jaws apart. The mandrel 109 comprises for this purpose a corresponding conical mandrel outer surface 110.

(17) In the illustrated exemplary embodiment, the mandrel 109 is located in the interior of the contact sleeve 104. Consequently, the mandrel 109 is also pressed into the clamping stud 105 at the same time as the relative movement between the contact sleeve 104 and clamping stud 105.

(18) All three exemplary embodiments illustrate a plug connection 1, 100 that can be joined in a simple manner, is able to withstand very high vibration loads, is simple to produce and can be joined using small plugging forces and comprises a low electrical and thermal transition resistance.