Double-layer shielding polyvinyl chloride insulated cable

Abstract

The utility model relates to the technical field of insulated cables, and particularly discloses a double-layer shielding polyvinyl chloride insulated cable, which comprises a battery cell and an insulating sleeve shell, the insulating sleeve shell comprises a polyvinyl chloride insulating layer, an inner shielding layer, an outer shielding layer, an insulating isolation layer and a protective jacket, the polyvinyl chloride insulating layer is coated on the outer surface wall of the battery cell, and the outer shielding layer is coated on the outer surface wall of the battery cell. The inner shielding layer wraps the outer surface wall of the polyvinyl chloride insulating layer, the inner shielding layer and the polyvinyl chloride insulating layer are matched with each other, the insulating isolation layer wraps the outer surface wall of the inner shielding layer, the outer shielding layer wraps the outer surface wall of the insulating isolation layer, the outer shielding layer and the insulating isolation layer are matched with each other, and the protective jacket wraps the outer surface wall of the outer shielding layer. According to the arrangement of the structure, the installation stability of the inner shielding layer and the outer shielding layer can be improved, the service life of the cable can be further prolonged, and the cable can be stably used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of insulated cable especially relates to a double -layer shielding polyvinyl chloride insulated cable. BACKGROUND

[0002] At present, double -layer shielding polyvinyl chloride insulated cable is a kind of cable with excellent electromagnetic shielding performance and insulation performance, is widely used in various need high anti -interference and stable transmission occasion, including communication field, industrial automation, medical field, aerospace and military communication and other technical fields, but the shielding effect of existing is not enough remarkable, the weight and volume of cable increase, and softness reduces simultaneously, inconvenient operation.

[0003] The prior art CN206921502U provides a polyvinyl chloride sheath braided shielding control flexible cable, which comprises a core and a sheath wrapped outside the core;The core comprises a plurality of twisted insulated shielding single wires, insulated twisted pair shielding wires, first insulated single wires and insulated coaxial video cables;The sheath comprises, from inside to outside, a wrapping layer, an inner sheath, a composite total shielding layer and an outer sheath;The composite total shielding layer is a double-layer structure, and the composite total shielding layer is uniformly distributed with bundle twisted copper wires;The insulated coaxial video cable comprises a twisted pair insulated wire group, a braided shielding layer wrapped outside the twisted pair insulated wire group, a plurality of second insulated single wires arranged outside the braided shielding layer, a first shielding layer, a second shielding layer and an elastic protective sleeve wrapped outside the second insulated single wires in sequence.

[0004] But in prior art, due to the harsh environment of cable or long time use of cable, the shielding layer of insulated cable will become weak due to aging, and then the shielding layer will fall off or loosen. Utility model content

[0005] The utility model aims at providing a double -layer shielding polyvinyl chloride insulated cable, to solve the technical problem that the shielding layer of insulated cable will become weak due to aging in prior art because of the harsh environment of cable or long time use of cable, and then the shielding layer will fall off or loosen.

[0006] In order to achieve the above object, the utility model discloses a kind of double-layer shielding polyvinyl chloride insulated cable, including electric core, further including insulating sleeve, the insulating sleeve includes polyvinyl chloride insulation layer, inner shielding layer, outer shielding layer, insulation isolation layer and protective outer cover, the polyvinyl chloride insulation layer is covered in the outer surface wall of the electric core, the inner shielding layer is covered in the outer surface wall of the polyvinyl chloride insulation layer, and the inner shielding layer and the polyvinyl chloride insulation layer are mutually adapted, the insulation isolation layer is covered in the outer surface wall of the inner shielding layer, the outer shielding layer is covered in the outer surface wall of the insulation isolation layer, and the outer shielding layer and the insulation isolation layer are mutually adapted, the protective outer cover is covered in the outer surface wall of the outer shielding layer.

[0007] Among them, the inner shielding layer includes inner shielding body, inner embedded block and outer embedded block, the number of the inner embedded block is multiple groups, each group of the inner embedded block is fixedly connected with the inner shielding body and is located at the inner side of the inner shielding body, the number of the outer embedded block is multiple groups, each group of the outer embedded block is fixedly connected with the inner shielding body and is located at the outer surface wall of the inner shielding body.

[0008] Among them, the insulation isolation layer has inner embedded groove and outer embedded groove, the number of the inner embedded groove is multiple groups, each group of the inner embedded groove is arranged at the inner side of the insulation isolation layer, and each group of the inner embedded groove is adapted with the corresponding outer embedded block, the number of the outer embedded groove is multiple groups, each group of the outer embedded groove is arranged at the outer surface wall of the insulation isolation layer, and each group of the outer embedded groove is adapted with the outer shielding layer.

[0009] Among them, the outer shielding layer includes outer shielding body and clamping block, the number of the clamping block is multiple groups, each group of the clamping block is fixedly connected with the outer shielding body and is located at the inner side of the outer shielding body, and each group of the clamping block is adapted with the corresponding outer embedded groove.

[0010] Among them, the protective outer cover includes wire netting, protective layer and isolation hemisphere, the wire netting is fixedly connected with the protective layer and is embedded at the inner side of the protective layer, the number of the isolation hemisphere is multiple groups, each group of the isolation hemisphere is fixedly connected with the protective layer and is located at the outer surface wall of the protective layer.

[0011] The utility model discloses a double -deck shielding polyvinyl chloride insulated cable, the electric core is the conductive part of cable, the polyvinyl chloride insulation layer carries out insulation protection to the electric core, and simultaneously the polyvinyl chloride insulation layer carries out the installation of embedding to the inner shielding layer, the card embedding adaptation of polyvinyl chloride insulation layer and the inner shielding layer can effectively avoid the inner shielding layer to pull, and effectively protect the integrity of the inner shielding layer in turn, the insulation isolation layer carries out the isolation to the inner shielding layer and the outer shielding layer, and the insulation isolation layer carries out the joint installation with the inner shielding layer, the outer shielding layer and the insulation isolation layer also carry out the joint installation, and finally by the protective cover is wrapped up the protection to the outer shielding layer, the polyvinyl chloride insulation layer, the inner shielding layer, the insulation isolation layer and the outer shielding layer between adopt the joint installation of embedding the mode, can effectively guarantee its the inner shielding layer and the outer shielding layer appear to fall or loose condition, the setting of above structure can improve the installation stability of the inner shielding layer and the outer shielding layer, and in turn can improve the service life of cable, make its cable can long -term stable use. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description in the drawing is only some embodiments of the utility model, for those skilled in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0013] Fig. 1 It is a double -deck shielding polyvinyl chloride insulated cable structure schematic view of the utility model.

[0014] Fig. 2 It is a double -deck shielding polyvinyl chloride insulated cable cross section schematic view of the utility model.

[0015] Fig. 3 It is the structure schematic view of the insulation isolation layer of the utility model.

[0016] Fig. 4 It is the structure schematic view of the inner shielding layer of the utility model.

[0017] 101-electric core, 102-polyvinyl chloride insulation layer, 103-insulation isolation layer, 104-inner shielding main body, 105-embedded block, 106-outer embedded block, 107-embedded groove, 108-outer embedded groove, 109-outer shielding main body, 110-clamping block, 111-wire mesh, 112-protection layer, 113-isolation hemisphere. DETAILED DESCRIPTION

[0018] Please refer to Figs. 1 to 4The utility model provides a kind of double-layer shielding polyvinyl chloride insulated cable, including electric core 101, further including insulating sleeve, the insulating sleeve includes polyvinyl chloride insulation layer 102, inner shielding layer, outer shielding layer, insulating isolation layer 103 and protective outer cover, the polyvinyl chloride insulation layer 102 is covered in the outer surface wall of the electric core 101, the inner shielding layer is covered in the outer surface wall of the polyvinyl chloride insulation layer 102, and the inner shielding layer and the polyvinyl chloride insulation layer 102 are mutually adapted, the insulating isolation layer 103 is covered in the outer surface wall of the inner shielding layer, the outer shielding layer is covered in the outer surface wall of the insulating isolation layer 103, and the outer shielding layer and the insulating isolation layer 103 are mutually adapted, the protective outer cover is covered in the outer surface wall of the outer shielding layer.

[0019] In the embodiment, the electric core 101 is the conductive part of the cable, the polyvinyl chloride insulation layer 102 insulates and protects the electric core 101, and the polyvinyl chloride insulation layer 102 is embedded and installed with the inner shielding layer. The polyvinyl chloride insulation layer 102 and the inner shielding layer are clamped and fitted, which can effectively prevent the inner shielding layer from being pulled, thereby effectively protecting the integrity of the inner shielding layer. The insulating isolation layer 103 isolates the inner shielding layer and the outer shielding layer, and the insulating isolation layer 103 is clamped and installed with the inner shielding layer. The outer shielding layer and the insulating isolation layer 103 are also clamped and installed. Finally, the protective outer cover protects the outer shielding layer. The polyvinyl chloride insulation layer 102, the inner shielding layer, the insulating isolation layer 103, and the outer shielding layer are clamped and fitted, which can effectively prevent the inner shielding layer and the outer shielding layer from falling off or loosening.

[0020] Further, the inner shielding layer includes an inner shielding body 104, inner blocks 105, and outer blocks 106. The number of inner blocks 105 is multiple, each group of inner blocks 105 is fixedly connected to the inner shielding body 104 and located on the inner side of the inner shielding body 104. The number of outer blocks 106 is multiple, each group of outer blocks 106 is fixedly connected to the inner shielding body 104 and located on the outer surface wall of the inner shielding body 104.

[0021] In the embodiment, the inner blocks 105 and the outer blocks 106 are respectively arranged on the inner side and the outer side of the inner shielding body 104. The inner blocks 105 are clamped with the polyvinyl chloride insulation layer 102, and the outer blocks 106 are clamped with the insulating isolation layer 103. The clamping of the inner blocks 105 and the outer blocks 106 realizes the limiting and fixing of the inner shielding body 104.

[0022] Further, the insulation isolation layer 103 has a plurality of groups of inner embedding grooves 107, each group of the inner embedding grooves 107 is arranged on the inner side of the insulation isolation layer 103, and each group of the inner embedding grooves 107 is matched with the corresponding outer embedding block 106; the insulation isolation layer 103 has a plurality of groups of outer embedding grooves 108, each group of the outer embedding grooves 108 is arranged on the outer wall of the insulation isolation layer 103, and each group of the outer embedding grooves 108 is matched with the outer shielding layer.

[0023] In the embodiment, the inner embedding grooves 107 are matched with the outer embedding blocks 106 to realize the installation and clamping of the insulation isolation layer 103, and the outer embedding grooves 108 are matched with the outer shielding layer to facilitate the fixation of the outer shielding layer. The insulation isolation layer 103 isolates the inner shielding layer and the outer shielding layer to effectively protect them.

[0024] Further, the outer shielding layer includes an outer shielding body 109 and a plurality of groups of clamping blocks 110, each group of the clamping blocks 110 is fixedly connected with the outer shielding body 109 and located on the inner side of the outer shielding body 109, and each group of the clamping blocks 110 is matched with the corresponding outer embedding groove 108.

[0025] In the embodiment, the clamping blocks 110 are matched with the outer embedding grooves 108 to realize the fixation of the outer shielding body 109, which can reduce the movement range of the outer shielding body 109 in the cable and effectively protect the outer shielding body 109.

[0026] Further, the protective sleeve includes a wire mesh 111, a protective layer 112, and a plurality of groups of isolation hemispheres 113, the wire mesh 111 is fixedly connected with the protective layer 112 and embedded in the inner side of the protective layer 112, and each group of the isolation hemispheres 113 is fixedly connected with the protective layer 112 and located on the outer wall of the protective layer 112.

[0027] In the embodiment, the wire mesh 111 can further improve the flexibility of the protective layer 112 to avoid cracks and breakage during bending. The protective layer 112 protects the outer shielding layer, and the isolation hemispheres 113 can maintain a distance between the cables when they contact each other to avoid electromagnetic interference between the cables. In addition, the cables are not easily bitten by rodents at the key positions of the cables.

[0028] The above disclosed is only a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right scope, the person skilled in the art can understand that the whole or part processes of the above embodiment are realized, and the equivalent change made according to the utility model claim still belongs to the range covered by the utility model.

Claims

1. A double-shielded polyvinyl chloride insulated cable, comprising a battery core, characterized in that, It also includes an insulating casing; The insulating shell includes a polyvinyl chloride (PVC) insulating layer, an inner shielding layer, an outer shielding layer, an insulating isolation layer, and a protective outer jacket. The PVC insulating layer covers the outer wall of the battery cell. The inner shielding layer covers the outer wall of the PVC insulating layer and is compatible with the PVC insulating layer. The insulating isolation layer covers the outer wall of the inner shielding layer. The outer shielding layer covers the outer wall of the insulating isolation layer and is compatible with the insulating isolation layer. The protective outer jacket covers the outer wall of the outer shielding layer.

2. The double-shielded polyvinyl chloride insulated cable as described in claim 1, characterized in that, The inner shielding layer includes an inner shielding body, an inner embedded block, and an outer embedded block. There are multiple sets of inner embedded blocks, each set of which is fixedly connected to the inner shielding body and located on the inner side of the inner shielding body. There are also multiple sets of outer embedded blocks, each set of which is fixedly connected to the inner shielding body and located on the outer wall of the inner shielding body.

3. The double-shielded polyvinyl chloride insulated cable as described in claim 2, characterized in that, The insulating isolation layer has an inner groove and an outer groove. There are multiple sets of inner grooves, each set of inner grooves is disposed on the inner side of the insulating isolation layer, and each set of inner grooves is adapted to the corresponding outer block. There are multiple sets of outer grooves, each set of outer grooves is disposed on the outer wall of the insulating isolation layer, and each set of outer grooves is adapted to the outer shielding layer.

4. A double-shielded polyvinyl chloride insulated cable as described in claim 3, characterized in that, The outer shielding layer includes an outer shielding body and a locking block. There are multiple sets of locking blocks. Each set of locking blocks is fixedly connected to the outer shielding body and is located inside the outer shielding body. Each set of locking blocks is adapted to the corresponding outer slot.

5. A double-shielded polyvinyl chloride insulated cable as described in claim 1, characterized in that, The protective outer jacket includes a wire mesh, a protective layer, and an isolation hemisphere. The wire mesh is fixedly connected to the protective layer and embedded inside the protective layer. There are multiple sets of isolation hemispheres, each set of which is fixedly connected to the protective layer and located on the outer wall of the protective layer.

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