WO2018177463A1

WO2018177463A1 - Protective device for plug

Info

Publication number: WO2018177463A1
Application number: PCT/DE2018/100226
Authority: WO
Inventors: Marc Lindkamp
Original assignee: HARTING Electronics GmbH
Priority date: 2017-03-31
Filing date: 2018-03-13
Publication date: 2018-10-04
Also published as: CN211507982U; DE102017106990A1

Abstract

The invention relates to a protective device for a plug, comprising a retaining means and an actuating means. The retaining means can be held in a housing of the plug. At least one contact element can be held in the housing. The actuating means is movably arranged on the retaining means. In particular, the protective device has at least one locking means. Such protective devices are necessary in order to protect the contact elements and to protect a user from unintentional contact.

Description

Protective device for connectors Description

The invention relates to a protective device for connectors according to the preamble of independent claim 1.

Such protective devices are required to ensure safe contact protection of the contacts.

State of the art

DE 10 2009 059 089 B3 shows an electrical plug with soldered in the contact pins Berührschutzkappen. This is a charging plug for an electric vehicle in which the

Touch protection cap is attached by means of solder on or in the contact. By Lot the Berührschutzkappe is firmly attached to the plug.

In DE 44 00 555 A1 a short-circuit-free connector is disclosed. In this connector, the protection is a two-piece

Design of the contact pin, partly conductive, partly insulating, given.

A disadvantage of the known solutions, however, is that the contact protection is permanently mounted in the respective embodiment of the connector and a contact with a mating connector is made difficult.

The German Patent and Trademark Office has in the priority application for the present application the following prior art research: DE 103 25 072 B3, DE 1 071 800 A and AT 501 257 A1. task

The object of the invention is to propose a protective device which ensures safe and at the same time flexible protection against contact.

The task is characterized by the characterizing features of

independent claim 1 solved.

Advantageous embodiments of the invention are specified in the subclaims.

The invention relates to a protective device for a connector. The protective device has a holding means and an actuating means, wherein the holding means is receivable in a housing of the connector. In the housing, at least one contact element is receivable. The actuating means is arranged movably on the holding means and the protective device has at least one latch.

The protective device has a holding means. This holding means is constructed in cross-section T-shaped. It consists of a plate with an integrally formed rod. The plate can be round or square. The rod can be round or square. The plate and the rod are arranged perpendicular to each other. Preferably, the rod and the plate are formed from a part, that is formed in one piece. The rod is arranged centrally on the plate.

The holding means is receivable in the housing of the connector and secures in the aforementioned embodiment, for example, the IP-class 69. The holding means further comprises two recesses. The two

Recesses are parallel to the rod. In both

Recesses each an actuating means is added. The actuating means is arranged movably on the holding means. The actuation of the actuating means is possible by means of a mating connector or an auxiliary means. The tool may be

for example, to act a screwdriver. The actuating means secures in combination with the holding means the contact protection within the connector. The contact protection is ideally increased by the fact that it can only be canceled if both actuating means are operated simultaneously. This applies both to the use of a mating connector and for the use of one, more precisely, two, aids.

Particularly advantageous is at least one latch, which is arranged on the protective device. In this case, at least one latching is ideally arranged on the rod of the holding means. Alternatively, a further latching may be formed on the plate of the holding means.

The latching on the plate cooperates with the housing of the connector and thus restricts the removal of the protective device from the housing. This will result in unauthorized removal of the

Protective device prevents.

The latching on the rod also acts together with the housing and prevents pressure on the plate without actuation of the two

Actuating means or a non-simultaneous actuation of the two actuating means make contact with the contact elements. This ensures the protection of the user against accidental contact with the user

Contact elements.

In an advantageous embodiment, the actuating means acts on the latching. The action takes place through the movement of the

Actuating means. In a preferred embodiment, the latch is movable between a locked position and an unlocked position

arranged. The movement between the two mentioned positions is effected by the action of the actuating means.

In the locked position, the latch secures the retaining means in position so as to ensure secure contact protection. Is moved by a correct operation of the actuating means, more precisely, the two actuating means, the latch in the unlocked position, so for example, a mating connector with the

Connectors are connected.

In a particularly preferred embodiment, the latch on a rocker or a latch. If a detent is used, it is arranged on the rod. Ideally, the rod has a resilient end, on which the locking lug is formed.

Preferably, rod and latch are formed from one part.

If a rocker is used, it is arranged behind the rod in the housing of the connector. Ideally, the rocker has the shape of a kidney to perform a smooth, oscillating motion.

In a preferred embodiment, the rocker or latch is movable between a locked position and an unlocked position.

In the locked position, the one end of the rocker, which is farther away from the holding means, upwards. Upwards means in the direction of the housing of the connector. There, the rocker prevents in the locked position, a deeper insertion of the holding means, as long as the locked position has not been unlocked. In the unlocked position, the rocker rests in its center of gravity. This is located at the extreme point of a curve, which represents the shape of the rocker as a kidney, mathematically.

The release of the rocker by means of the actuating means. This pushes, with correct actuation only over the one end of the rocker, which is close to the holding means and then acts on the rocker, that this then moves on further introduction of the actuating means in its unlocked position. For re-locking the actuating means is moved out of the inserted position again.

The principle works analogously when a catch is used instead of the rocker. An actuation of the latch takes place by means of

Actuating means.

In the locked position, the locking lug upwards. Upwards means in the direction of the housing of the connector. There, the locking lug prevents in the locked position, a deeper insertion of the holding means, as long as the locked position has not been unlocked.

In the unlocked position, the detent lug abuts the rod of the holding means. The unlocking of the locking lug takes place by means of the actuating means. This pushes, with correct actuation, over the resilient end of the locking lug on the rod so that it then moves, upon further introduction of the actuating means in its unlocked position. For re-locking the actuating means is moved out of the inserted position again.

In a particularly preferred embodiment, the

Fender on a spring. The spring is in the execution with Latch arranged around the rod, so that the spring force acts according to the axial direction of movement of the rod.

In the embodiment with the rocker, the spring is behind the rocker, so remote from the holding means arranged. The spring force acts in the direction of the rocker and thus in the direction of the rod.

In a preferred embodiment, the spring is within the

Housing arranged. This provides protection for the spring against external influences. In particular, the spring is received in a cylindrical area in the housing.

In an advantageous embodiment, the spring is movable between a relieved position and a loaded position. If the spring is in the unloaded position, then latching lug or rocker are in the locked position. In the loaded position of the spring, the rocker or the latch are in the unlocked position. These two positions of the spring allow a support of the latch again by locking lug or spring, as the spring, following the physical law, wants to return to its initial state, the unloaded position.

embodiment

An embodiment of the invention is illustrated in the drawings and will be explained in more detail below. Show it:

Fig. 1 is a sectional view of an inventive

Connector in locked position

Fig. 2 is a sectional view of an inventive

Connector in unlocked position Fig. 3 is a sectional view of an alternative, inventive

Connector in locked position

Fig. 4 is a sectional view of an alternative, inventive

Connector in unlocked position

The figures contain partially simplified, schematic representations. In part, for the same, but possibly not identical

Elements identical reference numerals used. Different views of the same elements could be scaled differently.

FIG. 1 and FIG. 2 each show a sectional view of a plug connector 1 according to the invention with a latching lug 5 as

Latching. FIG. 3 and FIG. 4 each show one

Sectional view of an alternative, inventive

Connector 1 with a rocker 5'als latching.

FIG. 1 shows the connector 1 with a housing 2 in a locked position VR. Inside the housing 2, two or more contact elements 7 are accommodated, wherein only one contact element 7 can be seen through the sectional view.

The contact elements 7 are received in a holding means 4. In cross section, the holding means 4 is reminiscent of a "T." The holding means 4 consists of a bar and a plate, whereby the bar and the plate are made of one piece and arranged in a T-shape.

On the rod, at the end remote from the plate, a resilient portion is formed. The resilient region is created by an incision in the rod. This area forms the detent 5, which is formed so that in the locked position VR in a recess of the

Housing 2 engages. For secure locking, the locking lug 5 still has a molding on. In this embodiment, the molding is rectangular in shape.

Alternatively, a molding in the form of a hemisphere or a spherical stump would be conceivable. Depending on the design of the Anformung the recess must be formed in the housing accordingly.

The material of the rod and thus also of the latching lug 5 must be bendable so that the preferred state of the latching lug 5 is in the locked position VR.

Behind the rod, in the direction of the housing 2, is a spring 6

arranged. The spring force acts in the direction of the rod. In the locked position VR, the spring 6 is in a relieved position EL. The relieved position EL means that the spring 6 is in this position in its original form. As a result, the spring 6 secures the locked position VR of the locking lug 5 and thus of the entire

Connector 1.

At the holding means 4 at least two actuating means 3 are arranged to be movable. By sectional view, only one actuating means 3 is shown. This is through a recess in the plate of the

Held means 4 and can act on the locking lug 5. In the figure 1, the actuating means 3 projects partially from the plate of the holding means 4. In this position, the actuating means 3 can be actuated by a user. The operation is carried out either with a corresponding mating connector or with a tool, always both actuating means 3 must be operated simultaneously to release the lock. This is necessary because of security. After an operation, the action of the

Actuating means 3 on the locking lug. 5 FIG. 2 shows the same connector 1 as FIG. However, the connector 1 is in Figure 2 in an unlocked position ER. In the unlocked position ER, the actuating means 3 acts on the latching lug 5, by the resilient region and the Anformung the latching lug 5 in the direction of the rod from the recess in

Housing 2 presses.

If the locking lug 5 on the rod by the actuating means 3, so can the holding means 4 continue to insert into the connector 1, so that the contact elements 7 are contacted. The locking lug 5 is under the action of the actuating means 3 in the unlocked position ER.

The spring 6 has passed after the actuation of the actuating means 3 and the further insertion of the holding means 4 from the unloaded position EL in the loaded position BL. In the loaded position BL, the spring 6 is compressed.

To return from the unlocked position ER to the locked position VR, the actuating means 3 must be relieved. It is sufficient to move the force of the spring 6 to the holding means 4 again in the locked position VR and the locking lug 5 back into the recess on

Snap housing 2 into place.

3 shows an alternative embodiment of the connector 1 with a rocker 5 'in a housing 2 in a locked position VR. In the interior of the housing 2, two or more contact elements 7 are added, wherein only one through the sectional view

Contact element 7 can be seen.

The contact elements 7 are received in a holding means 4. In cross-section, the retaining means 4 is reminiscent of a "T" The retaining means 4 consists of a rod and a plate, whereby the rod and the plate are made made a part and arranged T-shaped.

Behind the rod is located at the end remote from the plate, the rocker 5 '. The rocker 5 'engages in the locked position VR in a recess of the housing 2 a. For this, the remote from the rod end of the rocker 5 'in the direction of the housing 2 and there snapped, as well as the locking lug 5 in Figure 1, in a corresponding recess.

For safe latching, the rocker 5 'has the shape of a kidney. The material of the rocker 5 'must be stable so that it does not bend in the locked position VR.

The spring 6 and the actuating means 3 are arranged analogously to Figures 1 and 2. The actuating means 3 also acts on the rocker 5 ', as described in Figure 1 for the locking lug 5.

FIG. 4 shows the same connector 1 as FIG. 3. However, the connector 1 in FIG. 4 is in an unlocked position ER.

In the unlocked position ER, the actuating means 3 acts on the rocker 5 'by pressing the end received in the recess in the direction of the rod out of the recess in the housing 2.

If the rocker 5 'in zero position, the actuating means 3 acts on both ends of the rocker 5'. The zero position here means that both ends of the rocker 5 'are at a height and both ends of the

Actuating means 3 are pressed in the direction of the rod. Thus, the holding means 4 can be further inserted into the connector 1, so that the contact elements 7 are contacted. The rocker 5 'is under the action of the actuating means 3 in the unlocked position ER. The path from the unlocked position ER back to the locked position VR is analogous to the version with a latching nose. 5

Although various aspects or features of the invention are shown in combination in the figures, it will be apparent to those skilled in the art, unless stated otherwise, that the combinations illustrated and discussed are not the only ones possible. In particular, corresponding units or feature complexes from different embodiments can be exchanged with one another.

Protective device for connectors

LIST OF REFERENCE NUMBERS

1 connector

2 housings

3 actuating means

4 holding means

5 latch

5 'seesaw

6 spring

7 contact element

VR locked position

He unlocked position

EL relieved position

BL loaded position

Claims

Protective device for connectors

claims

Protection device for a connector (1), comprising a holding means (4) and an actuating means (3),

wherein the holding means (4) in a housing

(2) of the

Connector (1) is receivable,

wherein the actuating means

(3) on the holding means

(4) is movably arranged,

characterized in that

the protective device has at least one latch.

Protective device according to claim 1

characterized in that

the actuating means (3) acts on the latching.

Protection device according to one of the preceding claims, characterized in that

the latch is movably disposed between a locked position (VR) and an unlocked position (ER).

the latching is designed as a latching lug (5) or a rocker (5 ').

Protective device according to claim 4

characterized in that

the rocker (5 ') or the latch

(5) is movable between a locked position (VR) and an unlocked position (ER).

6. Protection device according to one of the preceding claims, characterized in that

the protective device comprises a spring (6).

7. Protection device according to one of the preceding claims, characterized in that

the spring (6) is arranged inside the housing (2).

8. Protection device according to claim 6

characterized in that

the spring (6) is movable between a relieved position (EL) and a loaded position (BL).