CN219891917U - Novel shielding cable - Google Patents

Novel shielding cable Download PDF

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Publication number
CN219891917U
CN219891917U CN202320602502.6U CN202320602502U CN219891917U CN 219891917 U CN219891917 U CN 219891917U CN 202320602502 U CN202320602502 U CN 202320602502U CN 219891917 U CN219891917 U CN 219891917U
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China
Prior art keywords
shielding
adhesion layer
layer
shielding coating
cable
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CN202320602502.6U
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Chinese (zh)
Inventor
王超
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Changchun Jetty Automotive Parts Co Ltd
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Changchun Jetty Automotive Parts Co Ltd
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Priority to CN202320602502.6U priority Critical patent/CN219891917U/en
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Abstract

The utility model discloses a novel shielding cable, which comprises a sheath and at least one wire core arranged in the sheath, wherein a soft shielding layer is arranged on the inner wall of the sheath, the soft shielding layer comprises a first adhesion layer and a second adhesion layer which are sequentially arranged from inside to outside, and a shielding coating is arranged on at least one of the outer peripheral surface of the first adhesion layer and the inner peripheral surface of the second adhesion layer. According to the novel shielding cable, the soft shielding layer has lighter weight, can reduce transportation cost, and is convenient for users to use and wire in the vehicle. The soft shielding layer has better elasticity, and the shielding effect of the shielding layer can not be influenced in the use process of the cable or after the cable is bent.

Description

Novel shielding cable
Technical Field
The utility model relates to the technical field of cables, in particular to a novel shielding cable.
Background
The larger the current passing through the cable in the process of charging, the stronger the magnetic field can be generated around the cable, so that the interference of the magnetic field on elements other than the cable is not influenced, or the signal transmission of a control wire arranged in the cable is distorted due to the interference of other electromagnetic fields, a shielding structure is required to be arranged for the cable, the shielding net commonly used at present is formed by combining a metal braiding layer and a metal foil, the flexibility of the cable is reduced by spirally winding the metal foil on the inner layer or the outer side of the metal wire, and meanwhile, large equipment is required to be used when the metal braiding layer and the metal foil are arranged, so that the production cost of the cable is increased.
Therefore, the technical field of cables is in urgent need of a novel shielding structure cable with simple production process, low cost and good flexibility.
Disclosure of Invention
An object of the present utility model is to provide a new technical solution for a new shielded cable.
According to a first aspect of the utility model, a novel shielding cable is provided, which comprises a sheath and at least one wire core arranged in the sheath, wherein a soft shielding layer is arranged on the inner wall of the sheath, the soft shielding layer comprises a first adhesion layer and a second adhesion layer which are sequentially arranged from inside to outside, and a shielding coating is arranged on at least one of the outer peripheral surface of the first adhesion layer and the inner peripheral surface of the second adhesion layer.
Optionally, the outer peripheral surface of the first adhesion layer is provided with a first shielding coating, the inner peripheral surface of the second adhesion layer is provided with a second shielding coating, and at least one metal shielding layer is arranged between the first shielding coating and the second shielding coating.
Optionally, the metal shielding layer is configured as a wire mesh, and the first shielding coating and the second shielding coating are connected to each other by impregnating the wire mesh.
Optionally, the metal shielding layer is configured into an aluminum-plastic composite belt, the surface of the aluminum-plastic composite belt is provided with concave-convex grains, and the concave-convex grains are matched with the first shielding coating and the second shielding coating.
Optionally, the material of the first adhesion layer and/or the second adhesion layer is one of mica tape and non-woven fabric.
Optionally, the material of the first adhesion layer is different from the material of the second adhesion layer.
Optionally, the material of the first shielding coating and/or the second shielding coating is one of titanium metallic paint, chromium metallic paint, carbon conductive paint, graphite paint, silver powder metallic paint, nickel powder metallic paint, tin oxide metallic paint, zinc oxide metallic paint and antimony dioxide metallic paint.
Optionally, the material of the first shielding coating is different from the material of the second shielding coating.
Optionally, the cross section of the wire core is elliptical.
Optionally, the ratio of the major axis to the minor axis of the elliptical shape of the wire core is 2:1-20:1.
according to the novel shielding cable disclosed by the utility model, the novel shielding cable has the following beneficial technical effects:
the soft shielding layer surrounds the inner cavity, the plurality of wire cores are all arranged in the inner cavity formed by surrounding the soft shielding layer, and the soft shielding layer obtained by arranging the shielding coating on at least one of the outer peripheral surface of the first adhesion layer and the inner peripheral surface of the second adhesion layer has lighter weight, can reduce the transportation cost, and is convenient for users to use and wire in the vehicle. The soft shielding layer has better elasticity, and the shielding effect of the shielding layer can not be influenced in the use process of the cable or after the cable is bent.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
Fig. 1 is a schematic structural view of a novel shielded cable according to a first embodiment of the present utility model;
fig. 2 is a schematic structural view of a novel shielding cable according to a second embodiment of the present utility model;
fig. 3 is a schematic structural view of a novel shielded cable according to a third embodiment of the present utility model.
The figures are marked as follows:
101-a sheath; 102-a wire core; 103-a first adhesion layer; 104-a second adhesion layer; 105-a barrier coating; 106-a first barrier coating; 107-a second barrier coating; 108-a metal shielding layer; 109-liquid cooled tube.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
According to the novel shielding cable disclosed by the utility model, as shown in fig. 1, the novel shielding cable comprises a sheath 101 and at least one wire core 102 arranged in the sheath 101, wherein a soft shielding layer is arranged on the inner wall of the sheath 101, the soft shielding layer comprises a first adhesion layer 103 and a second adhesion layer 104 which are sequentially arranged from inside to outside, and a shielding coating 105 is arranged on at least one of the outer circumferential surface of the first adhesion layer 103 and the inner circumferential surface of the second adhesion layer 104.
The soft shielding layer surrounds the inner cavity, the plurality of wire cores 102 are all arranged in the inner cavity formed by surrounding the soft shielding layer, and the soft shielding layer obtained by arranging the shielding coating 105 on at least one of the outer peripheral surface of the first adhesion layer 103 and the inner peripheral surface of the second adhesion layer 104 has lighter weight, can reduce the weight of the cable and the transportation cost, and is convenient for users to use and wire in the vehicle. The soft shielding layer has better elasticity, and the shielding effect of the shielding layer can not be influenced in the use process of the cable or after the cable is bent.
In specific implementation, the wire core 102 includes a charging conductor, not shown, and an insulating layer sleeved on the periphery of the charging conductor; the insulating layer may be a hard insulating layer. The shielding coating 105 is preferably provided on both the outer peripheral surface of the first adhesion layer 103 and the inner peripheral surface of the second adhesion layer 104, thereby forming a unitary structure; the first adhesion layer 103 and the second adhesion layer 104 can protect the shielding coating 105, and the shielding coating 105 wears; the shielding coating 105 may be provided on one of the outer peripheral surface of the first adhesion layer 103 and the inner peripheral surface of the second adhesion layer 104, and the other one to which the shielding coating 105 is not adhered functions to prevent abrasion of the shielding coating 105.
In an embodiment of the novel shielded cable according to the present disclosure, as shown in fig. 2, a first shielding coating 106 is disposed on an outer peripheral surface of the first adhesion layer 103, a second shielding coating 107 is disposed on an inner peripheral surface of the second adhesion layer 104, and at least one metal shielding layer 108 is disposed between the first shielding coating 106 and the second shielding coating 107. The first shielding coating 106, the second shielding coating 107 and the metal shielding layer 108 clamped between the first shielding coating and the second shielding coating can increase the shielding effect of the soft shielding layer and improve the shielding capacity of the soft shielding layer.
Specifically, the metal shielding layer 108 is configured as a wire mesh, and the first shielding coating 106 and the second shielding coating 107 are connected to each other by impregnating the wire mesh. The first shielding coating 106 and the second shielding coating 107 are connected through the wire mesh, so that the soft shielding layer forms a whole structure, and the first shielding coating 106 and the second shielding coating 107 are prevented from being separated from the metal shielding layer 108 to influence the induced current conducting capacity of the soft shielding layer; that is, the interference current generated by electromagnetic interference can be effectively led out, so that the magnetic field generated by the cable in the energizing process is prevented from interfering with the normal use of other control systems, and meanwhile, signal transmission in the cable is prevented from being distorted due to interference of other electromagnetic fields.
Specifically, the metal shielding layer 108 is configured as an aluminum-plastic composite belt, and the surface of the aluminum-plastic composite belt is provided with concave-convex grains, and the concave-convex grains are matched with the first shielding coating 106 and the second shielding coating 107. The aluminum-plastic composite belt surface comprises an aluminum-plastic composite belt inner side surface and an aluminum-plastic composite belt outer side surface, namely, the aluminum-plastic composite belt inner side surface and the aluminum-plastic composite belt outer side surface are provided with concave-convex grains, and the concave-convex grains can enable the aluminum-plastic composite belt to be combined with the first shielding coating 106 and the second shielding coating 107 on two sides of the aluminum-plastic composite belt better, so that the soft shielding layer forms an integral structure, and the first shielding coating 106 and the second shielding coating 107 are prevented from being partially separated from the metal shielding layer 108 to influence the capacity of the soft shielding layer for conducting induced current; that is, the interference current generated by electromagnetic interference can be effectively led out, so that the magnetic field generated by the cable in the energizing process is prevented from interfering with the normal use of other control systems, and meanwhile, signal transmission in the cable is prevented from being distorted due to interference of other electromagnetic fields.
In an embodiment of the novel shielded cable according to the present disclosure, the material of the first adhesion layer 103 and/or the second adhesion layer 104 is one of mica tape and non-woven fabric. The first adhesion layer 103 and the second adhesion layer 104 are made of mica tapes or non-woven fabrics, so that the soft shielding layer has better flexibility; in particular, the first shielding coating 106 and/or the second shielding coating 107 may be a metallic paint or a conductive paint with a conductive function, and since the metallic paint or the paint may be tightly adhered to the mica tape or the non-woven fabric, the soft shielding layer may form a flexible shielding layer of an integral structure.
Specifically, the material of the first adhesion layer 103 is different from the material of the second adhesion layer 104. The first adhesion layer 103 has flame retardant effect by adopting mica tape because of the side close to the wire core; the second adhesion layer 104 is close to the inner wall of the sheath, and the production difficulty can be reduced by adopting non-woven fabrics.
Specifically, the material of the first shielding coating 106 and/or the second shielding coating 107 is one of titanium metallic paint, chromium metallic paint, carbon conductive paint, graphite paint, silver powder metallic paint, nickel powder metallic paint, tin oxide metallic paint, zinc oxide metallic paint, and antimony dioxide metallic paint. The chromium metal paint has strong adhesive force, good surface smoothness and roundness, strong corrosion resistance, thin thickness and low cost. The titanium metal paint has the advantages of light weight, reduced whole line weight, no toxicity, environmental protection, excellent corrosion resistance, high temperature resistance, low temperature resistance and high mechanical strength. The titanium metallic paint and the chromium metallic paint are used as materials of the first shielding coating 106 and the second shielding coating 107 in the soft shielding layer, so that the obtained soft shielding layer has better mechanical strength and the service life of the soft shielding layer is prolonged. The chromium metallic paint and the titanium metallic paint have excellent conductive performance, can effectively lead out interference current generated by electromagnetic interference, prevent magnetic fields generated by the cable in the electrifying process from interfering with normal use of other control systems, and simultaneously prevent signal transmission in the cable from being distorted by interference of other electromagnetic fields.
The conductive filler of the carbon conductive paint mainly comprises graphite, graphite fiber, carbon fiber, high-temperature calcined petroleum coke, various carbon blacks, silicon carbide and the like. Because the conductive carbon black has the advantages of low price, small density, difficult sedimentation, strong corrosion resistance and the like.
The graphite paint has the characteristics of good shielding performance, low price and simple operation process.
The silver powder metallic paint has good chemical stability, excellent anti-corrosion performance and high shielding property, and is a conductive filler which is developed and applied earlier.
The nickel powder metallic paint has good chemical stability and effective electromagnetic interference resistance.
Tin oxide metallic paint, zinc oxide metallic paint, antimony dioxide metallic paint and the like have the advantages of good stability and small density.
Specifically, the material of the first shielding coating 106 is different from the material of the second shielding coating 107. The first shielding coating 106 and the second shielding coating 107 which are made of two different materials enable the soft shielding layer to have better mechanical properties, moisture resistance and softening resistance, and the cable is convenient to bend; the material of the first shielding coating 106 is different from that of the second shielding coating 107, so that the shielding effect on signals of different wave bands is different, multiple different signal interference sources can be shielded, and interference signals of different wave bands emitted by the cable can be reduced.
In an embodiment of a novel shielded cable according to the present disclosure, as shown in fig. 3, the cross section of the core 102 is in an elliptical shape.
The cross section of the core 102 is elliptical, so that the heat dissipation area of the core 102 is increased, the heat dissipation capacity of the core 102 is enhanced, and the current carrying capacity of the charging conductor is increased; and the outer surface of the elliptical wire core 102 is a smooth curve, so that no edges and corners exist, and the point discharge is avoided.
In the state that a plurality of wire cores 102 are arranged in the inner cavity of the soft shielding layer, the wire cores 102 with elliptical cross sections can be arranged in a laminated mode, a liquid cooling pipe 109 can be arranged in a gap between the two wire cores 102, so that a cable is round, heat generated in the charging process of the wire cores 102 is taken away through the cooling liquid flowing through the liquid cooling pipe 109, and therefore the current carrying capacity of the wire cores 102 is improved. The plurality of wire cores 102 with elliptical cross sections are stacked, so that magnetic fields generated by the wire cores 102 in the charging process can be mutually offset, and electromagnetic interference generated by the wire cores 102 in the charging process is weakened.
Specifically, the ratio of the major axis to the minor axis of the elliptical shape of the core 102 is 2:1-20:1. the cable core 102 can be guaranteed to have good mechanical properties, the cable core 102 is guaranteed to have certain flexibility, the difficulty in assembly to a vehicle body is reduced, meanwhile, the cable core 102 is guaranteed to be not easy to break in the use process, and the service life of a cable is prolonged.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (10)

1. The utility model provides a novel shielding cable, its characterized in that, including the sheath with set up in at least one sinle silk in the sheath, the sheath inner wall is provided with soft shielding layer, soft shielding layer is including first adhesion layer and the second adhesion layer that sets gradually from inside to outside, be provided with the shielding coating on the outer peripheral surface of first adhesion layer with at least one of the inner peripheral surface of second adhesion layer.
2. The novel shielded cable of claim 1, wherein the outer peripheral surface of the first adhesion layer is provided with a first shielding coating, the inner peripheral surface of the second adhesion layer is provided with a second shielding coating, and at least one metallic shielding layer is disposed between the first shielding coating and the second shielding coating.
3. The novel shielded cable of claim 2, wherein the metallic shield layer is configured as a wire mesh, and the first and second shield coatings are connected to each other by impregnating the wire mesh with the first and second shield coatings.
4. The novel shielded cable of claim 2, wherein the metallic shielding layer is configured as an aluminum-plastic composite strip, the aluminum-plastic composite strip surface having a relief texture, the relief texture matching the first and second shielding coatings.
5. The novel shielded cable according to claim 1, wherein the material of the first adhesion layer and/or the second adhesion layer is one of mica tape and non-woven fabric.
6. The novel shielded cable of claim 5, wherein the first adhesion layer is a material different from the material of the second adhesion layer.
7. The novel shielded cable according to claim 2, wherein the material of the first shielding coating and/or the second shielding coating is one of titanium metallic paint, chromium metallic paint, carbon-based conductive paint, graphite paint, silver powder metallic paint, nickel powder metallic paint, tin oxide metallic paint, zinc oxide metallic paint, and antimony dioxide metallic paint.
8. The novel shielded cable of claim 7, wherein the first shielding coating is a different material than the second shielding coating.
9. The novel shielded cable of claim 1, wherein the cross-section of the core is elliptical in shape.
10. The novel shielded cable of claim 9, wherein the ratio of the major axis to the minor axis of the elliptical shape of the core is 2:1-20:1.
CN202320602502.6U 2023-03-24 2023-03-24 Novel shielding cable Active CN219891917U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320602502.6U CN219891917U (en) 2023-03-24 2023-03-24 Novel shielding cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320602502.6U CN219891917U (en) 2023-03-24 2023-03-24 Novel shielding cable

Publications (1)

Publication Number Publication Date
CN219891917U true CN219891917U (en) 2023-10-24

Family

ID=88395290

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320602502.6U Active CN219891917U (en) 2023-03-24 2023-03-24 Novel shielding cable

Country Status (1)

Country Link
CN (1) CN219891917U (en)

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