[0001] The present Patent of Invention application consists, as its title indicates, of
a "LOCKING ELEMENT FOR ELECTRICAL CONNECTORS", whose features of construction, shape
and design fulfil the object for which they have specifically been planned, with maximum
safety and effectiveness.
[0002] Electrical connectors are known which are provided inside with the corresponding
terminals connected to the different electrical cables. It frequently occurs that
a great number of cables arrive at said connectors, which are housed in the respective
connector boxes. These cables are grouped by rubber tubes and, in the vicinity of
the connector, the wires are tightly clamped so that they do not move.
[0003] This configuration gives rise to many problems of noise due to the vibrations arising
from the movement of the cables, above all in electrical installations of vehicles
and the like.
[0004] In order to solve this drawback and others which appear in electrical installations
with high cable density, the locking element for electrical connectors of the present
invention has been developed.
[0005] It is, in general terms, a cover or locking element for electrical connectors made
up of a body which fits into the upper part of the electrical connector and is intended
to protect the cables which run inside it.
[0006] The peculiarity of said locking element lies in the fact that, in the inner part
of its upper side, it is provided with a compression element which consists of a flexible
laminar body for compressing the cables in the locked position, preventing them from
moving and causing unwanted vibrations and noises in the electrical connection area.
Moreover, good connection conditions are ensured as the cables are firmly held in
the electrical connector. The configuration of the locking element which is the object
of the present invention avoids the use of bands or the arrangement of clamps for
holding the cables. Moreover, the described locking element allows the cables to be
extracted, when necessary, in a very simple way.
[0007] In accordance with other feature of the locking element of the invention, the flexible
laminar body has a concave transverse section adapted to apply pressure on the cables
arranged inside in the locking position. This configuration reduces the transmission
of vibrations from the cabling produced by micro-movements of the same. It is preferable
that said concave element is made of elastomer or in any other suitable material which
is capable of absorbing the vibrations and holding the cables without damaging them.
Also, it should be emphasised that the transverse section of the compression element
has side extensions which are immobilised in the inner area of the side walls of the
locking element, so that said compression element is perfectly integrated into the
connector cover.
[0008] The features and advantages of the locking element for electrical connectors which
is the object of the present invention will be clearer from the detailed description
of a preferred embodiment of the same which will be given, hereinafter, by way of
non-restrictive example, with reference to the drawings which accompany it, in which:
Figure 1 is an elevational view of a locking element for electrical connectors according
to the invention.
Figure 2 is an elevational view of said locking element, cross-sectioned according
to the plane A-A' of figure 1.
[0009] The elements which appear in the attached drawings are the following: (1) locking
element or cover of an electrical connector, (2) extension of the locking element,
(3) side walls of the locking element, (4) upper wall of the locking element, (5)
inner area of the locking element, (6) flexible laminar body, and (7, 8) side extensions
of the flexible laminar body.
[0010] Figure 1 illustrates an embodiment of a locking element (1) or cover which is used
in an electrical connector for cars (not shown). The locking element (1) has an extension
(2) which is conveniently adapted for the outlet of the electrical cables. Said extension
(2) has been illustrated with greater detail in the frontal section of figure 2 of
the drawings included in the present report.
[0011] The extension (2) of the locking element (1) has, as a whole, a transverse section
which is, essentially, in the shape of an inverted U, defined by side walls (3) and
an upper wall (4). Said walls (3, 4) form an inner area (5) for the passage of the
electrical cables (not shown). The locking element or cover (1), which serves to protect
the cables which run through the connector, advantageously incorporates, in the inner
part of its upper side (4), a compression element (6) made up of a flexible laminar
body made of, for example, elastomer, which compresses the cables when the cover (1)
is in the locking position. In said position, which is that illustrated in figure
1, the cables (not shown) are tightly compressed inside (5) the cover (1) of the connector.
In this way the vibrations in the electrical connection area are reduced and, moreover,
good connection conditions are ensured, without the need to clamp the cables.
[0012] With special reference to figure 2 of the drawings, it may be observed how the flexible
laminar body (6) has a concave transverse section with the purpose of applying appropriate
pressure on the cables arranged inside (5) the cover (1) of the connector in the locking
position. In this sense, the transverse section of the compression element (6) has
side extensions (7, 8) joined rigidly in the inner area of the side walls (3) of the
extension (2) of the locking element or cover (1), whereby the compression element
(6) is perfectly integrated into the cover (1) of the electrical connector.
[0013] The compression element (6) serves as a wiring centerer and prevent the vibrations
of the same caused by the micro-movements of the assembly arranged in the vehicle.
In accordance with the former description, it is evident that the locking element
for electrical connectors which is the object of the present invention is mainly destined
to high density connectors supporting a high number of cables.
[0014] The materials of the elements which make up the described locking element, and also
the shapes, dimensions and other accessory elements may conveniently be replaced by
others which are technically equivalent, provided that they do not depart from the
essential nature of the present invention, nor from the inventive concept of the same
as defined in the claims which are included below.
1. "A LOCKING ELEMENT FOR ELECTRICAL CONNECTORS", made up of a body which fits into the
upper part of the electrical connector intended to protect the cables which run inside
(5), characterised in that said locking element (1) comprises, in the inner part (5),
a compression element which consists of a flexible laminar body (6) for compressing
the cables in the locking position.
2. "A LOCKING ELEMENT FOR ELECTRICAL CONNECTORS" in accordance with claim 1, characterised
in that said flexible laminar body (6) has a concave transverse section adapted to
apply pressure on the cables arranged inside (5) in the locking position.
3. "A LOCKING ELEMENT FOR ELECTRICAL CONNECTORS" in accordance with any of the foregoing
claims, characterised in that the transverse section of the compression element (6)
has side extensions (7) which are immobilised in the inner area of the side walls
(3) of the locking element (1).