CN218497815U - Shielded control cable - Google Patents
Shielded control cable Download PDFInfo
- Publication number
- CN218497815U CN218497815U CN202222321888.1U CN202222321888U CN218497815U CN 218497815 U CN218497815 U CN 218497815U CN 202222321888 U CN202222321888 U CN 202222321888U CN 218497815 U CN218497815 U CN 218497815U
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- wire cores
- control cable
- twisted pair
- twisted
- cable
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- 239000004744 fabric Substances 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011889 copper foil Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 11
- 230000017105 transposition Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of electric wires and cables, in particular to a shielding control cable, which comprises a supporting bar, a plurality of twisted pair wire cores, a shielding layer and an outer insulating layer, wherein each twisted pair wire core comprises convex parts and concave parts which are distributed at intervals along the length direction, the convex parts and the concave parts of every two adjacent twisted pair wire cores are partially distributed in a staggered way, and the twisting direction of more than half of the wire cores is opposite to that of the twisted pair wire cores outside the supporting bar; through misplacing a plurality of twisted wire cores in the cable by half twisted pitch in the axial direction, a deformation space required for bending is provided, and the twisting direction of the twisted wire cores is opposite to the twisting direction of the twisted wire cores outside the supporting bar, so that the whole cable has better flexibility and a stable twisting and bending state, and the cable has a longer service life on occasions where the cable is frequently bent.
Description
Technical Field
The utility model relates to a wire and cable technical field particularly relates to shielding control cable.
Background
The signal cable, also known as shielding control cable, is the instrument and the medium of signal transmission, and in order to avoid the signal to receive the interference, there is one deck shielding layer outside the signal cable, the shielding layer of conductor of parcel promptly, plays anti-electromagnetic radiation and influence in service environment. For example, a vehicle-scale weak current shielding control cable used in a new energy vehicle on a large scale transmits digital signals and control signals, is connected with a controller and an actuator through a socket, and is fixed to a proper position through a wire harness fixer or a constraint mechanism.
For example, a signal shielding control cable applied between a car body and a wheel may vibrate or deflect with the up-and-down movement of a chassis system during the running of a car, and since the existing signal cable is basically twisted based on a plurality of twisted pairs, and the twisted pairs are tightly wound for the sake of compactness of the cable, instability of signal transmission or fatigue fracture of a wire core may occur.
SUMMERY OF THE UTILITY MODEL
According to the utility model discloses a first aspect of purpose provides a shielded control cable, include:
the supporting strips are arranged on the cable core;
the paired wire cores are stranded on the outer side of the supporting strip, and each paired wire core comprises two paired wire cores;
the shielding layer is wrapped on the outer sides of the twisted wire cores;
the outer insulating layer is extruded on the outer side of the shielding layer;
the twisted pair wire cores comprise convex parts and concave parts which are distributed at intervals along the length direction, the convex parts and the concave parts of every two adjacent twisted pair wire cores are distributed in a staggered mode, and the twisting direction of more than half of the wire cores is opposite to the twisting direction of the twisted pair wire cores outside the supporting bar.
Preferably, 3-6 twisted wire cores are twisted on the outer side of the supporting strip.
Preferably, the cross section of the supporting bar is provided with a circular shape or a regular polygon.
Preferably, the axis of the supporting bar is provided with a cavity distributed along the axis direction.
Preferably, the diameter of the supporting strip is smaller than or equal to that of the twisted wire core.
Preferably, the sectional area of the cavity is 1/3-2/3 of the sectional area of the supporting strip.
Preferably, the twisted wire cores are defined to be arranged at the right side of the twisting direction of the outer side of the support bar, and 2-5 twisting directions of the wire cores are arranged at the left side.
Preferably, the shielding layer comprises a conductive cloth or a copper foil wrapping.
Preferably, the support strip comprises a polyurethane elastic strip.
Preferably, the wire core comprises a conductor and an inner insulating layer coated outside the conductor.
More than combining the technical scheme of the utility model it is visible, through with a plurality of pair twist sinle silks in the cable half pair twist pitch that misplaces in the axial, provide crooked required deformation space to the direction of twist that makes a plurality of pair twist sinle silks self is opposite with the transposition in the support bar outside, makes the whole better flexibility and the stable state of twisting and bending that has of cable, makes the cable have longer life under occasions such as frequently buckling.
Drawings
The figures are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic cross-sectional view of a shielded control cable according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hierarchical structure of a shielded control cable according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of another embodiment of the shielded control cable according to the present invention;
fig. 4 is a schematic diagram of an active state of a core in the shielded control cable according to the embodiment of the present invention.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
[ SHIELDED CONTROL CABLE ]
Combine fig. 1 to show, the utility model discloses the shielding control cable of the embodiment of first aspect aims at guaranteeing under the condition in the same line footpath, makes the flexibility of cable body increase, more is applicable to the occasion that needs frequent bending to improve the life of signal cable.
As an alternative embodiment, the cable mainly comprises a support strip 1, a twisted pair wire core 2, a shielding layer 3 and an outer insulating layer 4.
Wherein, support bar 1 sets up in the cable core position, and a plurality of pair twist sinle silk 2 transposition are in support bar 1's the outside.
Every pair twist sinle silk 2 all includes two sets of sinle silks 21 of pair twist, and sinle silk 21 includes conductor silk and the cladding is at the internal insulation layer in the conductor outside for transmit the signal of telecommunication.
The outer insulating layer 4 is extruded outside the shielding layer 3 by adopting a polyethylene material, and an insulating protection effect is achieved.
In optional embodiment, 3 ~ 6 pair twist sinle silk 2 of outside transposition of support bar 1, make the diameter less than or equal to pair twist sinle silk 2 of support bar 1's diameter, when the quantity of pair twist sinle silk 2 is three groups, the diameter of support bar 1 is minimum relatively, 1/7 of the round diameter that is 2 places for pair twist sinle silk on probably, make three groups of pair twist sinle silk 2 just can be twisted in the outside of support bar 1, make the external diameter of cable body reduce as far as possible, when the quantity of pair twist sinle silk 2 is six groups, the diameter of support bar 1 is maximum relatively, be equal to pair twist sinle silk 2 places round diameter on probably.
Support strip
Furthermore, in order to make the supporting strip 1 have higher elasticity and flexibility, the axis of the supporting strip 1 is provided with a cavity 101 distributed along the axial direction, and the sectional area of the cavity 101 is 1/3-2/3 of the sectional area of the supporting strip 1.
As an optional embodiment, the supporting strip 1 is made of a polyurethane elastic strip, so that the cable core has high supporting performance and a bending space, and a buffering space is provided for high-frequency bending of the cable.
In optional embodiment, combine fig. 3 to show, the cross-section of support bar 1 sets up to circular or regular polygon, can select according to the quantity and the demand of pair twist sinle silk 2, for example, set up three groups of pair twist sinle silks 2 and then can choose for use regular triangle or circular, set up six groups of pair twist sinle silks 2 and then can choose for use regular hexagon or circular.
Pair twisted wire core
As shown in fig. 2 and 4, the twisted pair core 2 includes convex portions 201 and concave portions 202 spaced apart from each other along the length direction, and the convex portions 201 and the concave portions 202 of two adjacent twisted pair cores 2 are partially staggered.
In an optional embodiment, the convex portions 201 and the concave portions 202 on the twisted wire cores 2 are distributed in a staggered manner, when the convex portions 201 of the twisted wire cores 2 are in contact with the support bar 1, the concave portions 202 of the twisted wire cores 2 on two sides of the twisted wire cores are in a suspended state in the same cross section and are distributed in the radial direction, when the cable is bent, a suspended gap between the concave portions 202 and the support bar 1 provides a space for deformation, so that the cable is bent more easily as a whole, and the wire cores 21 are not easily pulled and broken due to fatigue.
In an alternative embodiment, the twisting direction of more than half of the wire cores 21 is opposite to the twisting direction of the twisted wire cores 2 outside the support strip 1, that is, when the six groups of twisted wire cores 2 are twisted outside the support strip 1, the twisting direction of the twisted wire cores 2 outside the support strip 1 is defined to be right, and then the twisting direction of 2-5 wire cores 21 is left.
So, when the cable takes place and twists reverse with pair twist sinle silk 2 syntropy, then have 2 ~ 5 sinle silks 21 in the state of relaxing, can not all turn round tightly, and when the cable takes place and twists reverse the twisting of pair twist sinle silk 2, then have 2 ~ 5 sinle silks 21 in the state of tightening, can not all relax, can restrain the whole difficult crooked unfavorable condition of specific direction of cable, make the cable whole under the condition of twisting more stable.
Shielding layer
In an alternative embodiment, the shielding layer 3 includes a conductive cloth or a copper foil wrapped, the conductive cloth is made of polyester fiber cloth as a base material, and after pretreatment, an electroplated metal coating is applied to make the conductive cloth have a metal characteristic, so that the conductive cloth is relatively more flexible.
So, through the pair twist sinle silk 2 that sets up the axial dislocation distribution, make the cable have the deformation space under the bending state to change in the bending, be difficult to the broken string, simultaneously, because sinle silk 21 among the pair twist sinle silk 2 is different at the ascending transposition direction of axial, can restrain the cable wholly to the difficult bad condition of bending of specific direction, make the cable whole under the condition of twisting more stable.
Manufacturing method of shielded control cable
The utility model discloses the second aspect provides a shielded control cable's manufacturing method, including following step:
Wherein, in order to make support bar 1 under resistant crooked circumstances, have collapsible deformation space, the polyurethane strip is extruded and is the hollow strip, and in order to make the transposition 2 positions of core of the pair twist wire of transposition at support bar 1 week side more stable, the cross-section of polyurethane strip is extruded and is the regular polygon.
2.1, manufacturing a wire core 21: a stranding machine is utilized to strand a plurality of strands of anaerobic thin copper wires to form a conductor wire, the anaerobic thin copper wires have the conducting capacity, the conductor formed after the strands are stranded is softer and easy to bend, and an inner insulating layer made of polyethylene materials is extruded on the outer side of the conductor wire to form a wire core 21.
And 2.2, twisting the pair of wire cores 21 in a pair twisting mode to form a pair twisted wire core 2.
Wherein, two adjacent pair twist sinle silks 2 distribute with the mode of half pair twist pitch of mistake in the axial, and be greater than the 21 transposition directions of sinle silk 21 of M/2 quantity and the transposition direction of pair twist sinle silk 2 in the support bar 1 outside opposite.
So, when the convex part 201 part of pair twist sinle silk 2 contacted with support bar 1, then in same cross-section, the concave part 202 of pair twist sinle silk 2 of its both sides was then in unsettled state, and is so distributed along radial direction, when the cable took place to buckle, then unsettled space between concave part 202 and the support bar 1, then can provide the space for deformation, made the whole easier bending of cable, made sinle silk 21 part be difficult to because of the fracture of being dragged that fatigue leads to.
Step 5, manufacturing an outer insulating layer 4: and extruding a polyethylene material by using an extruder to coat the outer side of the shielding layer 3 to form an outer insulating layer.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is well known in the art and can be modified and decorated without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (10)
1. A shielded control cable, comprising:
the supporting strip (1) is arranged on the cable core;
the twisted pair wire cores (2) are twisted on the outer side of the supporting strip (1), and each twisted pair wire core (2) comprises two groups of twisted pair wire cores (21);
the shielding layer (3) is wrapped on the outer sides of the twisted pair wire cores (2);
the outer insulating layer (4) is extruded on the outer side of the shielding layer (3);
the twisted pair wire core (2) comprises convex parts (201) and concave parts (202) which are distributed at intervals along the length direction, the convex parts (201) and the concave parts (202) of the two adjacent twisted pair wire cores (2) are partially distributed in a staggered mode, and the twisting direction of the wire cores (21) is opposite to that of the twisted pair wire cores (2) on the outer side of the support bar (1).
2. Shielded control cable according to claim 1, characterized in that the support strip (1) is stranded on its outside with 3-6 twisted pair cores (2).
3. Shielded control cable according to claim 1, characterized in that the cross-section of the support strip (1) is arranged as a circle or a regular polygon.
4. Shielded control cable according to claim 1, characterized in that the axial center of the support strip (1) is provided with cavities (101) distributed in the axial direction.
5. Shielded control cable according to claim 1, characterized in that the diameter of the support strip (1) is less than or equal to the diameter of the twisted pair core (2).
6. Shielded control cable according to claim 4, characterized in that the cross-sectional area of the cavity (101) is 1/3-2/3 of the cross-sectional area of the support strip (1).
7. The shielded control cable of claim 2, wherein the twisted pairs of cores (2) are defined to the right in the twisting direction of the outer side of the support bar (1), and the twisting direction of 2-5 cores (21) is set to the left.
8. Shielded control cable according to claim 1, characterized in that the shielding layer (3) comprises a conductive cloth or a copper foil wrapping.
9. Shielded control cable according to claim 1, characterized in that the support strip (1) comprises a polyurethane elastic strip.
10. Shielded control cable according to claim 1, characterized in that the core (21) comprises a conductor and an inner insulating layer covering the outside of the conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222321888.1U CN218497815U (en) | 2022-09-01 | 2022-09-01 | Shielded control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222321888.1U CN218497815U (en) | 2022-09-01 | 2022-09-01 | Shielded control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218497815U true CN218497815U (en) | 2023-02-17 |
Family
ID=85188969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222321888.1U Active CN218497815U (en) | 2022-09-01 | 2022-09-01 | Shielded control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218497815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115312237A (en) * | 2022-09-01 | 2022-11-08 | 无锡市华美电缆有限公司 | Shielded control cable and preparation method thereof |
-
2022
- 2022-09-01 CN CN202222321888.1U patent/CN218497815U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115312237A (en) * | 2022-09-01 | 2022-11-08 | 无锡市华美电缆有限公司 | Shielded control cable and preparation method thereof |
| CN115312237B (en) * | 2022-09-01 | 2025-05-27 | 无锡市华美电缆有限公司 | Shielded control cable and preparation method thereof |
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