Plug-in connection that can be pre-tightened powerfully and seamlessly

Abstract

Plug-in connection element, having a plug-in connector (1) which can be plugged together with a mating plug-in connector, also referred to as a pin housing (2), wherein the plug-in connector (1) can be latched with the mating plug-in connector (2) at least indirectly, characterized in that a sleeve housing (3) is provided which at least partially surrounds the plug-in connector (1) and forms a latching connection with the mating plug-in connector or the pin housing (2), and that the plug-in connector (1), the mating plug-in connector or the pin housing (2) and the sleeve housing (3) are operatively connected to one another by means of a lever mechanism and can be clamped against one another.

Description

Technical Field

[0001] The present invention relates to a plug-in connection member having a plug connector that can be plugged together with a mating plug connector also referred to as a pin housing, wherein the plug connector can be latched with the mating plug connector at least indirectly. Background Art

[0002] Such plug-in connection members are generally known. In such plug-in connection members, there is a problem that a locking gap appears between the plug connector and the mating plug connector, whereby relative movement may occur between the plug connector and the mating plug connector and the contact resistance increases. Summary of the Invention

[0003] The object of the present invention is to improve a plug-in connection member of the type described at the beginning such that the locking gap is eliminated or strongly reduced, the contact resistance is not changed, and there is no contact wear during use under vibration load.

[0004] The object is achieved by a plug-in connection member.

[0005] According to the present invention, a sleeve housing is provided, which at least partially surrounds the plug connector and forms a latch with the mating plug connector or the pin housing, and the plug connector, the mating plug connector or the pin housing, and the sleeve housing are connected to each other by a lever mechanism and can be clamped to each other. With this design, the plug-in connection member can be pre-tightened significantly higher than that usually achieved by the applied assembly force. The lever mechanism increases the pre-tightening force, and a high pre-tightening force can be achieved even in a manually (handmade) assembled plug-in connection member.

[0006] Preferably, end stops are provided on the sleeve housing and / or on the plug connector, which limit the movement of the sleeve housing in the direction of the pin housing on the plug connector.

[0007] According to the present invention, the lever mechanism has a lever that is pivotally fixed to the plug connector in the middle region and is connected to the pin housing and the sleeve housing at its end regions. The lever has a pin at one of its ends, and the pin is movably guided in the gap after being inserted into the gap of the sleeve housing or the pin housing. In addition, the lever has a gap at the other end, and the gap surrounds the pin after the pin fastened to the pin housing or the sleeve housing is inserted.

[0008] In order to avoid the locking gap and improve the pre-tightening, a spring, preferably a leaf spring, is provided on the wall of the gap facing the pin housing, and the spring loads the pin housing in the direction of the plug connector and at the same time pre-tightens the plug-in connection member. Brief Description of the Drawings

[0009] In a further design of the present invention, reference is made to the accompanying drawings, in which embodiments of the present invention are schematically shown. In the figures:

[0010] Figure 1 shows a perspective view of the plug connector at the start of contact,

[0011] Figure 2 shows the plug connector after the plug connector and the mating plug connector are engaged,

[0012] Figure 3 shows the plug connector according to Figure 2, in which the sleeve housing is latched onto the mating plug connector, and

[0013] Figure 4 shows a partial view of the lever with the built-in spring. Detailed Description

[0014] As shown in detail, the plug connector is denoted by reference numeral 1 in Figures 1 to 4. The plug connector comes into contact with the mating plug connector or the pin housing 2 and thereby establishes an electrical connection. The sleeve housing marked with 3 is movably guided on the plug connector 1. The sleeve housing and the nose 4 on the plug connector 1 form a stop, which limits the movement of the sleeve housing 3 on the plug connector 1 in the direction towards the pin housing 2.

[0015] The plug connector 1 has a bolt 5, and the lever 6 is supported on the bolt. The lever 6 has a pin 7 at one of its ends, and the pin reaches into the slot 8 on the sleeve housing 3 after corresponding guidance. A slot 9 is provided at the other end of the lever 6, and the slot is configured to receive the pin 10 on the mating plug connector or the pin housing 2.

[0016] At the start of contact, both the pin 7 and the pin 10 are respectively configured to the slots 8 and 9, so that a lever action is generated by the force acting on the sleeve housing 3 in the direction towards the pin housing 2. The lever action brings the plug connector 1 and the mating plug connector or the pin housing 2 closer to each other or pushes them together. As long as the sleeve housing 3 reaches the nose 4 on the plug connector 1, the contact ends, and the sleeve housing 3 is latched to the tongue plate at the rear of the inclined surface on the mating plug connector or the pin housing 2.

[0017] The increase and continuous clamping of the clamping force between the plug connector 1 and the mating plug connector or the pin housing 2 are strengthened by a spring 11, which is built into the wall of the slot 9 in the lever and is configured as a leaf spring. Since the other end of the lever 6 is supported by the sleeve housing 3, and the sleeve housing 3 is fixed to the mating plug connector or the pin housing 2 by latching in terms of the sleeve housing, continuous clamping can be achieved.

[0018] Not shown but present are at least one contact pair in the plug connector 1 and at least one mating contact pair in the mating plug connector 2 or the pin housing. If the plug connector 1 is properly mated with the mating plug connector 2 or the pin housing in the manner and method described above, the contact pair and the mating contact pair together form an electrical connection. The at least one contact pair of the plug connector 1 and / or the at least one mating contact pair of the mating plug connector 2 or the pin housing are, for example, arranged at the end of a cable, but can also be arranged on a circuit board of an electronic device or the like. List of reference numerals

[0019] 1 Plug connector

[0020] 2 Mating plug connector or pin housing

[0021] 3 Sleeve housing

[0022] 4 Nose

[0023] 5 Bolt

[0024] 6 Lever

[0025] 7, 10 Pins

[0026] 8, 9 Slots

[0027] 11 Spring

Claims

1. Plug-in connecting element, having a plug connector (1) which can be plugged together with a pin housing (2), and the plug connector (1) can be latched with the pin housing (2) at least indirectly, characterized in that, There is a sleeve housing (3) which at least partially surrounds the plug connector (1) and forms a snap lock with the pin housing (2), and the plug connector (1), the pin housing (2) and the sleeve housing (3) are connected to each other by means of a lever (6) and can be clamped to each other. The lever (6) has a gap (9) at one end, and after a pin (10) on the pin housing (2) or on the sleeve housing is inserted, the gap surrounds the pin. A spring (11) is provided as a separate component on the wall of the gap (9) on the lever (6) facing the pin housing (2), and the spring loads the pin housing (2) in the direction of the plug connector (1). The sleeve housing (3) forms an end stop with a nose (4) on the plug connector (1), and the end stop limits the movement of the sleeve housing (3) on the plug connector (1) in the direction of the pin housing (2). As long as the sleeve housing (3) reaches the nose (4) on the plug connector (1), the sleeve housing (3) engages with a tongue plate behind an inclined surface on the pin housing (2).

2. The plug-in connecting member according to claim 1, characterized in that The lever (6) is pivotally fixed to the plug connector (1) in the middle region and is connected to the pin housing (2) and the sleeve housing (3) by the end region of the lever.

3. The plug-in connecting member according to claim 1 or 2, characterized in that, The lever (6) has another pin (7) at the other end, and after the other pin is inserted into another gap (8) on the sleeve housing (3) or on the pin housing (2), it can move in the other gap.

4. The plug-in connecting member according to claim 1 or 2, characterized in that The spring (11) is configured as a leaf spring.

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