# US 9,437,953 B2 · Electrical plug-in connector

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- Number: US 9,437,953 B2
- Document ID: US9437953B2
- Status: Granted
- Kind: B2
- Application number: 14/654,059
- Filed: 2013-12-17
- Published: 2015-11-05
- Granted: 2016-09-06
- Earliest claimed: 2012-12-21
- Assignees: ERNI Production GmbH & Co. KG
- Applicants: ERNI Production GmbH & Co. KG
- Inventors: Juergen Lappoehn
- Web page: https://patentgrep.com/patent/US9437953B2

## CPC

- H01R 13/508: assembled by {a separate} clip or spring
- H01R 13/6272: {comprising a single latching arm}
- H01R 13/639: Additional means for holding or locking coupling parts together, after engagement, {e.g. separate keylock, retainer strap}
- H01R 4/2433: one part of the base being movable to push the cable into the slot
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

An electrical plug-in connector having a first housing part and having a second housing part, blade contact elements being arranged in the first or second housing part and spring contact elements being arranged in the second or first housing part which are adapted to the blade contacts and can be inserted therein, has a locking clip which, when it engages around the first or second housing part in a manner substantially parallel to the plug-in direction when the two housing parts are plugged into each other, can be locked in or on the second or first housing part.

## Claims

### Claim 1

Electrical plug-in connector having a first housing part and having a second housing part,
wherein first contact elements are arranged in the first housing part and second contact elements that are able to be plugged into the first contact elements are arranged in the second housing part,
wherein a locking clip is able to be locked on the first housing part while it partially encloses the second housing part when both housing parts are plugged into each other,
wherein guide elements running substantially parallel to the plugging direction are arranged in the second housing part for guiding clip arms of the locking clip,
wherein latch elements are provided in the first housing part for locking with counterpart latch elements arranged on the clip arms,
wherein the locking clip is designed to be U-shaped, wherein the clip arms are two U-shaped leas that are bent fundamentally orthogonally from a base, and
wherein the guide elements arranged on the second housing part are designed as protrusions, wherein the U-shaped legs have grooves on their respective inner side, wherein the grooves face towards the protrusions on the second housing part, with which grooves the protrusions engage in a sliding manner.

### Claim 2 (depends on 1)

Electrical plug-in connector according to claim 1, wherein the U-shaped legs have latching hooks as counterpart latch elements on their ends, which interact with latch elements formed as a snap-in nose on the first housing part.

### Claim 3 (depends on 2)

Electrical plug-in connector according to claim 2, wherein each of the latching hooks has a respective latching hook longitudinal axis and a latching hook sliding surface running obliquely to the latching hook longitudinal axis and each of the snap-in noses has a respective snap-in nose longitudinal axis and a snap-in nose sliding surface running obliquely to the snap-in nose longitudinal axis.

### Claim 4 (depends on 1)

Electrical plug-in connector according to claim 1, wherein the locking clip comprises plastic.

### Claim 5 (depends on 1)

Electrical plug-in connector according to claim 1, wherein both housing parts have primary locking agents and the locking clip acts as a secondary locking agent.

### Claim 6 (depends on 5)

Electrical plug-in connector according to claim 5, wherein the primary locking agent is formed by: a tongue arranged on the second housing part, having a latching hook that engages with an opening arranged in the first housing part.

### Claim 7 (depends on 1)

Electrical plug-in connector according to claim 1, wherein the grooves are open in the plugging direction.