CN209543949U - Anti-interference coaxial-cable - Google Patents
Anti-interference coaxial-cable Download PDFInfo
- Publication number
- CN209543949U CN209543949U CN201920573774.1U CN201920573774U CN209543949U CN 209543949 U CN209543949 U CN 209543949U CN 201920573774 U CN201920573774 U CN 201920573774U CN 209543949 U CN209543949 U CN 209543949U
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- China
- Prior art keywords
- layer
- insulating layer
- tin
- cable according
- inner conductor
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 26
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000011889 copper foil Substances 0.000 claims abstract description 13
- 238000007747 plating Methods 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 10
- -1 polypropylene Polymers 0.000 claims abstract description 10
- 229920001155 polypropylene Polymers 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 239000007767 bonding agent Substances 0.000 claims abstract description 4
- 238000009954 braiding Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model discloses a kind of anti-interference coaxial-cables, including inner conductor, the first insulating layer is successively coated with outside the inner conductor, second insulating layer, third insulating layer, first screen layer, secondary shielding layer and oversheath, the inner conductor is constituted by the tin-coated copper monofilament that diameter is 0.05mm to 0.08mm is twisted, the second insulating layer and the third insulating layer are respectively expanded polypropylene resin layer and polypropylene resin layer and are bonded by bonding agent integral, the first screen layer is made of the aluminium alloy monofilament spiral winding that diameter is 0.25mm to 0.35mm, by tin plating copper foil wire, reverse spiral winding braiding is constituted the secondary shielding layer each other and spiral angle is different with tin-coated copper monofilament.It can effectively be interfered shielding noise, with good resist bending and resistance to torque characteristic, be less prone to shielded layer broken string phenomenon.
Description
Technical field
The utility model relates to cable and wire technical field, in particular to a kind of anti-interference coaxial-cable.
Background technique
The electromagnetic noise environment at industrial application scene is often sufficiently complex, and the radiation or conduction (EMI) of electromagnetic noise may
The normal work of meeting severe jamming equipment.And in this process, a kind of important carrier that electromagnetic noise is propagated is exactly that producing line is set
Various cables used in standby.For example, on automatic industrial manufacturing line, the connection of welding robot and manipulator and dress
Match, or for connecting Clothoid type, lifting type workbench, requires to be applied to the performances such as high flexibility, resist bending and warp resistance
Coaxial cable, this coaxial cable must also have good guarantee in the electrical characteristic of long range transmission.However, this kind of cable
Generally multilayer screen layer structure can be used to realize good shielding character, still, this multilayered structure be easily reduced bending and
Torsion characteristic is also easy to appear shielded layer broken string phenomenon during being subjected to bending and torsional deformation repeatedly.
Utility model content
In view of the deficiencies of the prior art, the technical problem to be solved is that provide a kind of anti-interference coaxial electrical for the utility model
Cable can be interfered effectively shielding noise, and with good resist bending and resistance to torque characteristic, it is existing to be less prone to shielded layer broken string
As.
The utility model is to be addressed above-mentioned technical problem by the following technical programs.
Anti-interference coaxial-cable, including inner conductor are successively coated with the first insulating layer, the second insulation outside the inner conductor
Layer, third insulating layer, first screen layer, secondary shielding layer and oversheath, the inner conductor are 0.05mm to 0.08mm by diameter
Tin-coated copper monofilament it is twisted constitute, the second insulating layer and the third insulating layer are respectively expanded polypropylene resin layer and poly-
Allyl resin layer is simultaneously bonded the aluminium alloy integral, the first screen layer is 0.25mm to 0.35mm by diameter by bonding agent
Single thread spiral winding is constituted, and by tin plating copper foil wire and tin-coated copper monofilament, reverse spiral winding weaves structure to the secondary shielding layer each other
At and spiral angle it is different.
Preferably, first insulating layer is FEP or PFA insulating layer.
Preferably, the second insulating layer is the expanded polypropylene resin layer of frothing percentage 30% to 40%.
Preferably, the tensile strength of the second insulating layer is greater than first insulating layer.
Preferably, the tensile strength and elongation of the third insulating layer are all larger than the second insulating layer.
Preferably, the tin plating copper foil wire of the secondary shielding layer and the diameter ratio of tin-coated copper monofilament are 1.5:1 to 2.5:
1。
Preferably, the oversheath is PVC or PU sheath.
Preferably, the spiral angle of the first screen layer and the secondary shielding layer is 45 degree to 60 degree.
Preferably, the tin plating copper foil wire is polyester fiber copper foil wire.
The utility model has the beneficial effects that
1. using the diameter of the twisted tin-coated copper monofilament for forming inner conductor for 0.05mm to 0.08mm, elongation is greater than 5%,
Tensile strength is greater than 330MPa, can guarantee that inner conductor has the electrical characteristic of good long range signals transmission, have both realization
Good resist bending and torsional resistance.
2. first screen layer is made up of the aluminium alloy monofilament spiral winding that diameter is 0.25mm to 0.35mm, such volume
Line layer is knitted when bearing bending deformation, there is extremely strong bending resistance characteristic, it is effective to reduce the phenomenon that monofilament breaks, simultaneously
Good shielding character is provided, and there is lighting effect.
3. shielding mutually supports compensation using the dual shield layer structure of first screen layer and secondary shielding layer, provide more preferable
Shield effectiveness.The resistance of first screen layer is low, and shield effectiveness is excellent, and secondary shielding layer has preferably resistance to compared with first screen layer
Bendability and resistance to torque characteristic, durable usability is good, extends the service life of cable.
Detailed description of the invention
The following drawings is intended to not constitute the limitation to scope of protection of the utility model convenient for description preferred embodiment.Fig. 1
It is the section structure diagram of the utility model embodiment.
In figure: 1- inner conductor, the first insulating layer of 2-, 3- second insulating layer, 4- third insulating layer, 5- first screen layer, 6-
Secondary shielding layer, 7- oversheath.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.
As shown in Figure 1, the anti-interference coaxial-cable of the utility model embodiment, including inner conductor 1, the inner conductor 1 by
The tin-coated copper monofilament that diameter is 0.05mm to 0.08mm is twisted to be constituted, and specifically, tin-coated copper monofilament elongation is greater than 5%, is resisted
Tensile strength is greater than 330MPa.Further, the stranding distance of the inner conductor 1 is 10 to 15 times of 1 outer diameter of inner conductor, is lower than 10
Times, resistance to bend(ing) is good, but buckling variation, is higher than 15 times, then buckling good, resistance to bend(ing) is deteriorated.
The first insulating layer 2, second insulating layer 3, third insulating layer 4, first is successively coated with outside the inner conductor 1 to shield
Layer 5, secondary shielding layer 6 and oversheath 7, first insulating layer 2 are FEP or PFA insulating layer.
The second insulating layer 3 and the third insulating layer 4 are respectively expanded polypropylene resin layer and polypropylene resin layer
And be bonded integrally by bonding agent, specifically, the second insulating layer 3 is the expanded polypropylene of frothing percentage 30% to 40%
Resin layer, the tensile strength of the second insulating layer 3 are greater than first insulating layer 2, second insulating layer and the first insulating layer it
Between be non-adhesive state, respectively independent, second insulating layer bears bigger drawing force than the first insulating layer, reduces by the first insulating layer
The drawing force of receiving, to improve resist bending and torsional resistance.Further, the tensile strength of the third insulating layer 4
Be all larger than the second insulating layer 3 with elongation, reinforcing structure layer of the third insulating layer as second insulating layer, common bonding at
One is also less prone to broken string phenomenon, also, while keeping flexibility, to inside after being continuously subjected to bending, torsion
Insulating layer form and be effectively protected.
The first screen layer 5 is made of the aluminium alloy monofilament spiral winding that diameter is 0.25mm to 0.35mm, is being born
When bending deformation, there is extremely strong bending resistance characteristic, effectively reduce the phenomenon that monofilament breaks, while providing good shielding
Characteristic.The secondary shielding layer 6 is by tin plating copper foil wire and the reverse spiral winding braiding each other of tin-coated copper monofilament constitutes and helical angle
Degree is different.For example, the tin plating copper foil wire is polyester fiber copper foil wire.The tin plating copper foil wire of the secondary shielding layer 6 and tin plating
The diameter of copper monofilament then improves resistance to bend(ing) less than 1.5 times and resistance to torsion effect is unknown than being preferably 1.5:1 to 2.5:1
It is aobvious, then resistance value is caused to increase higher than 2.5 times, shield effectiveness is deteriorated.Further, the first screen layer 5 and second screen
The spiral angle for covering layer 6 is 45 degree to 60 degree.
PVC or PU sheath can be used in the oversheath 7.
Above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although with reference to the foregoing embodiments
The application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the range of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. anti-interference coaxial-cable is successively coated with first absolutely it is characterized in that: including inner conductor (1) outside the inner conductor (1)
Edge layer (2), second insulating layer (3), third insulating layer (4), first screen layer (5), secondary shielding layer (6) and oversheath (7), institute
It states inner conductor (1) to be constituted by the tin-coated copper monofilament that diameter is 0.05mm to 0.08mm is twisted, the second insulating layer (3) and described
Third insulating layer (4) is respectively expanded polypropylene resin layer and polypropylene resin layer and is bonded integrally by bonding agent, described
First screen layer (5) is made of the aluminium alloy monofilament spiral winding that diameter is 0.25mm to 0.35mm, the secondary shielding layer (6)
By tin plating copper foil wire, reverse spiral winding braiding is constituted each other and spiral angle is different with tin-coated copper monofilament.
2. anti-interference coaxial-cable according to claim 1, it is characterized in that: first insulating layer (2) is FEP or PFA
Insulating layer.
3. anti-interference coaxial-cable according to claim 1, it is characterized in that: the second insulating layer (3) is frothing percentage
30% to 40% expanded polypropylene resin layer.
4. anti-interference coaxial-cable according to claim 1, it is characterized in that: the tensile strength of the second insulating layer (3)
Greater than first insulating layer (2).
5. anti-interference coaxial-cable according to claim 1, it is characterized in that: the tensile strength of the third insulating layer (4)
The second insulating layer (3) are all larger than with elongation.
6. anti-interference coaxial-cable according to claim 1, it is characterized in that: the tin plating copper foil of the secondary shielding layer (6)
The diameter ratio of silk and tin-coated copper monofilament is 1.5:1 to 2.5:1.
7. anti-interference coaxial-cable according to claim 1, it is characterized in that: the oversheath (7) is PVC or PU sheath.
8. anti-interference coaxial-cable according to claim 1, it is characterized in that: the first screen layer (5) and described second
The spiral angle of shielded layer (6) is 45 degree to 60 degree.
9. anti-interference coaxial-cable according to claim 1, it is characterized in that: the tin plating copper foil wire is polyester fiber copper foil
Silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573774.1U CN209543949U (en) | 2019-04-25 | 2019-04-25 | Anti-interference coaxial-cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573774.1U CN209543949U (en) | 2019-04-25 | 2019-04-25 | Anti-interference coaxial-cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209543949U true CN209543949U (en) | 2019-10-25 |
Family
ID=68246393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920573774.1U Expired - Fee Related CN209543949U (en) | 2019-04-25 | 2019-04-25 | Anti-interference coaxial-cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209543949U (en) |
-
2019
- 2019-04-25 CN CN201920573774.1U patent/CN209543949U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |