Patent Application
20230038376
The invention relates to the technical field of connectors, and more particularly, to a novel cable and a cable-sealing structure of a connector.
Generally, a commercially available cable nowadays includes a copper conductor, an insulating skin, a shielding layer, and an outer sheath. When connected to a connector, one end of the cable has to be inserted into the interior of the connector so that the copper conductor thereof is connected to a wiring part of the connector. Besides, to improve the sealing performance where the connector and the cable are connected, a circular seal is necessary between the connector and the cable. However, such a connector is defective in that: 1, after long-term use or a high-temperature aging test, an outer diameter of the cable may shrink due to the pressure applied by the circular seal, that is, the cable deforms, and the sealing performance deteriorates, losing the waterproof effect, and 2, when the cable deforms, failures will occur in the high-voltage insulation test and the insulation resistance test of the connector, bringing serious safety risks.
It is an object of the invention to overcome the defects in the prior art and provides a novel cable and a cable-sealing structure of a connector.
To achieve the above object, a first aspect of the present invention provides a novel cable, including:
a conductor;
an insulating layer provided outside the conductor along a length of the conductor;
a shielding layer provided outside the insulating layer along a length of the insulating layer;
an outer sheath provided outside the shielding layer along a length of the shielding layer; and
a sealing protection ring inserted between the shielding layer and the outer sheath and positioned at one end of the outer sheath.
The sealing protection ring is provided as a ring with a closed cross-section or as a C-shaped ring with an open cross-section.
One end of the sealing protection ring is provided with a flange extending radially, and the flange is exposed out of an end of the outer sheath.
The sealing protection ring is provided as a metal sealing ring or a rigid high-temperature-resistant plastic sealing ring.
The conductor is provided as a copper conductor; the shielding layer is provided as a shielding braid woven from a plurality of shielding wires.
A second aspect of the present invention provides a cable-sealing structure of a connector, including:
a connector body;
a cable having an end thereof installed inside the connector body and electrically connected with a wiring part of the connector body;
a circular seal provided inside the connector body and positioned between an inner wall of the connector body and the cable;
wherein the cable comprises:
an insulating layer provided outside the conductor along a length of the conductor;
a shielding layer provided outside the insulating layer along a length of the insulating layer;
an outer sheath provided outside the shielding layer along a length of the shielding layer; and
a sealing protection ring inserted between the shielding layer and the outer sheath and positioned at one end of the outer sheath, with the circular seal hooped outside the outer sheath at an area corresponding to a position of the sealing protection ring
The sealing protection ring is provided as a ring with a closed cross-section or as a C-shaped ring with an open cross-section.
One end of the sealing protection ring is provided with a flange extending radially, and the flange is exposed out of an end of the outer sheath.
The sealing protection ring is provided as a metal sealing ring or a rigid high-temperature-resistant plastic sealing ring.
The conductor is provided as a copper conductor; the shielding layer is provided as a shielding braid woven from a plurality of shielding wires.
The invention is more advantageous than the prior art in that:
The invention is simple in structure and scientifically designed. Because the sealing protection ring is provided between the shielding layer and the outer sheath, when the circular seal presses the outer sheath of the cable, the sealing protection ring can support the outer sheath, and the outer sheath may not be deformed. After long-term use or a high-temperature aging test, the outer sheath of the invention has a much smaller shrinkage of a diameter than an outer sheath without the sealing protection ring (the diameter of the outer sheath is basically unchanged), therefore, the sealing performance and the safety of the connector are improved, and the service life of the connector is greatly prolonged.
Referring to
In this embodiment, the conductor 11 may preferably be provided as a copper conductor. Surely other conductors made of metallic conductive materials may be used as appropriate.
As shown in
As shown in
As shown in
As shown in
In addition, in other preferred embodiments, as shown in
The flange 152 of the sealing protection ring 15 functions as a stop collar and can limit and contact the end of the outer sheath 14, so that the position of the sealing protection ring 15 is fixed. In addition, the flange 152 facilitates assembly and disassembly of the sealing protection ring 15 and enlarges an area of an end of the sealing protection ring 15, hence an operator can conveniently and quickly insert the sealing protection ring 15 between the shielding layer 13 and the outer sheath 14 and, in the case of disassembling the sealing protection ring 15, remove the sealing protection ring 15 easily by pulling the flange 15 with tools or by hands.
Referring to
In a specific implementation, the connector body 2 may be provided as a straight connector (as shown in
The structure and the mechanism of the cable of this embodiment are the same as those of the cable of the above-described embodiment 1, and also include a conductor 11, an insulating layer 12, a shielding layer 13, an outer sheath 14, and a sealing protection ring 15, which will not be described in detail here.
In the present embodiment, the circular seal 3 may be provided as a rubber circular seal, and the circular seal 3 is hooped outside the outer sheath 14 at an area corresponding to the position of the sealing protection ring 15.
Because the sealing protection ring is provided between the shielding layer and the outer sheath, when the circular seal presses the outer sheath of the cable, the sealing protection ring can support the outer sheath, and the outer sheath may not be deformed. After long-term use or a high-temperature aging test, the outer sheath of the invention has a much smaller shrinkage of a diameter than an outer sheath without the sealing protection ring (the diameter of the outer sheath is basically unchanged), therefore, the sealing performance and the safety of the connector are improved, and the service life of the connector is greatly prolonged.
The above-described embodiments are preferred ones of the present invention, but the embodiment of the present invention is not limited to the above-described embodiments, and any other changes, modifications, substitutions, combinations, simplifications, which do not depart the spirit and principles of the present invention, are all deemed as the equivalent replacement and intended to be included in the scope of the present invention.
