CN104282366A - High-flexibility cable for junction box - Google Patents
High-flexibility cable for junction box Download PDFInfo
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- CN104282366A CN104282366A CN201410559566.8A CN201410559566A CN104282366A CN 104282366 A CN104282366 A CN 104282366A CN 201410559566 A CN201410559566 A CN 201410559566A CN 104282366 A CN104282366 A CN 104282366A
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- China
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- junction box
- cable
- sheath layer
- high flexibility
- insulation core
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Abstract
The invention discloses a high-flexibility cable for a junction box. The high-flexibility cable for the junction box comprises a plurality of insulated core wires and a wrapping layer wrapping the insulated core wires, the wrapping layer is sequentially wrapped by an inner sheath layer and an outer sheath layer from inside to outside, the inner sheath layer is made of high-elasticity polyvinyl chloride, and the outer sheath layer is made of thermoplastic polyurethane. The inner sheath layer and the outer sheath layer made of thermoplastic materials different in performance are adopted for the high-flexibility cable for the junction box, and therefore the finished cable has higher flexibility, the problem that an existing cable is resistant to bending when assembled is effectively solved, the high-elasticity polyvinyl chloride of the inner sheath layer has excellent hydrolysis resistance and corrosion resistance, and meanwhile the thermoplastic polyurethane of the outer sheath layer keeps the advantages of a traditional cable.
Description
Technical field
The present invention relates to data cable, be specifically related to a kind of high flexibility junction box cable of new structure.
Background technology
Junction box cable requires that bending resistance folding endurance is good, service life requires very long, and long term exposure out of doors, environment is more severe, be in hot and humid, the rugged environment such as low temperature, ultraviolet, be attended by high-low pressure and big current and deposit, there is more serious low-frequency disturbance source, the control cables in electronic control system is made not only to be subject to low-and high-frequency Electromagnetic Interference, have a strong impact on the reliable and secure transmission of control information, and be easily worn, the damage such as corrosion, therefore have special requirement to the construction of cable.
Existing junction box cable adopts traditional cable structure mostly, and its cable core includes some insulation core wires, and every root heart yearn is made up of conductor and the insulating barrier be coated on conductor; Outside the cable core that some insulation core wires are formed, be coated with insulating outer protective cover, this oversheath adopts thermoplastic polyurethane plastic as sheath material mostly.Due in this traditional cable, installing can be cumbersome for polyurethane elasticity inherently (not easily bending or meeting resilience after bending), and traditional urethane nested structure is difficult to reach ideal effect; This construction of cable not hydrolysis or corrosion failure simultaneously.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of high flexibility junction box cable, this cable can not only bending easily and effectively, and can hydrolysis, overcomes the defect of this respect that polyurethane jacket structural cable traditional in prior art exists.
In order to realize above-mentioned object, the invention provides following technical scheme:
High flexibility junction box cable of the present invention includes some insulation core wires, is coated on the lapping layer of described insulation core wire, described lapping layer is coated with inner restrictive coating and external sheath layer outward from inside to outside successively, described inner restrictive coating is highly elastic polyvinyl chloride layer, and described external sheath layer is thermoplastic urethane layers.
Preferably, described insulation core wire is made up of conductor and the insulating barrier be coated on conductor;
Preferably, described high flexibility junction box cable includes at least three insulation core wires;
Further, described high flexibility junction box cable includes four insulation core wires.
Preferably, described insulation core wire is combined by stranded mode.
Wherein, described conductor is selected from copper, tin-coated copper, nickel-clad copper, silver-plated copper, aluminium etc.; Described insulating barrier is selected from polypropylene (PP), polyvinyl chloride (SR-PVC), polyethylene (PE), polyfluorinated ethylene (FEP), Meltability polytetrafluorethyletubular (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), chlorotrifluoroethylene (ECTFE), polyvinylidene fluoride (PVDF) etc.; Described lapping layer is selected from banded paper tape, mica tape, alkali-free glass fibre band, nonwoven fabrics, plastic tape, wire cotton yarn or silk etc.
Compared with prior art, high flexibility junction box cable provided by the invention adopts the interior oversheath of the thermoplastic of different performance, finished cable is made to have more flexibility, effective resistance to bending problem improved when existing cable assembles, the highly elastic polyvinyl chloride of inner restrictive coating also has excellent hydrolytic resistance and corrosion resistance, and the thermoplastic polyurethane of external sheath layer also remains the advantage of traditional cable simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing for the present invention in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the high flexibility junction box cable of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the high flexibility junction box cable of the embodiment of the present invention 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be described in detail the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1
High flexibility junction box cable as shown in Figure 1, include three insulation core wires, every root insulation core wire forms, is coated on the lapping layer 3 of insulation core wire by conductor 1 and the insulating barrier 2 be coated on conductor 1, lapping layer 3 is outer is coated with inner restrictive coating 4 and external sheath layer 5 from inside to outside successively, inner restrictive coating 4 is made for highly elastic polyvinyl chloride material, external sheath layer 5 is made for thermoplastic polyurethane material, and three insulation core wires are combined by stranded mode.
Embodiment 2
High flexibility junction box cable as shown in Figure 2, include four insulation core wires, every root insulation core wire forms, is coated on the lapping layer 3 of insulation core wire by conductor 1 and the insulating barrier 2 be coated on conductor 1, lapping layer 3 is outer is coated with inner restrictive coating 4 and external sheath layer 5 from inside to outside successively, inner restrictive coating 4 is made for highly elastic polyvinyl chloride material, external sheath layer 5 is made for thermoplastic polyurethane material, and four insulation core wires are combined by stranded mode.
The key technical indexes of the high flexibility junction box cable in above-described embodiment can reach:
A, environment for use temperature :-40 ~ 105 DEG C;
B, rated operational voltage: 300V;
C, withstand voltage: AC, 2000V/1min do not puncture;
D, ultraviolet protective test: tested by UL1581-1200 (720 hours);
E, thermal shock test: sheath 150 ± 3 DEG C of * 1h flawlesses;
F, cryogenic tensile test (-40 DEG C of * 4h): elongation at break >=30%;
G, fire resistance: tested by VW-1 vertical combustion.
In above-described embodiment, conductor 1 is selected from copper, tin-coated copper, nickel-clad copper, silver-plated copper, aluminium etc.; Insulating barrier 2 is selected from polypropylene (PP), polyvinyl chloride (SR-PVC), polyethylene (PE), polyfluorinated ethylene (FEP), Meltability polytetrafluorethyletubular (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), chlorotrifluoroethylene (ECTFE), polyvinylidene fluoride (PVDF) etc.; Lapping layer 3 is selected from banded paper tape, mica tape, alkali-free glass fibre band, nonwoven fabrics, plastic tape, wire cotton yarn or silk etc., suitable material is selected according to concrete cable instructions for use, above-mentioned technical indicator is only limitted to the particular/special requirement of butted line box cable, not as the concrete substantial restriction to the construction of cable of the present invention.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a high flexibility junction box cable, include some insulation core wires, be coated on the lapping layer (3) of described insulation core wire, it is characterized in that: described lapping layer (3) is coated with inner restrictive coating (4) and external sheath layer (5) outward from inside to outside successively, described inner restrictive coating (4) is highly elastic polyvinyl chloride layer, and described external sheath layer (5) is thermoplastic urethane layers.
2. high flexibility junction box cable according to claim 1, is characterized in that: described insulation core wire is made up of conductor (1) and the insulating barrier (2) be coated on conductor (1).
3. high flexibility junction box cable according to claim 1, is characterized in that: described high flexibility junction box cable includes at least three insulation core wires.
4. high flexibility junction box cable according to claim 3, is characterized in that: described high flexibility junction box cable includes four insulation core wires.
5. the high flexibility junction box cable according to claim 3 or 4, is characterized in that: described insulation core wire is combined by stranded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559566.8A CN104282366A (en) | 2014-10-21 | 2014-10-21 | High-flexibility cable for junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559566.8A CN104282366A (en) | 2014-10-21 | 2014-10-21 | High-flexibility cable for junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104282366A true CN104282366A (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410559566.8A Pending CN104282366A (en) | 2014-10-21 | 2014-10-21 | High-flexibility cable for junction box |
Country Status (1)
| Country | Link |
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| CN (1) | CN104282366A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060056769A1 (en) * | 2004-09-10 | 2006-03-16 | Khemakhem M Hamed A | Hybrid fiber/copper connector system and method |
| US20130264094A1 (en) * | 2011-10-20 | 2013-10-10 | Nexans | Electrical cable with easily removable casing |
| CN103509287A (en) * | 2013-09-06 | 2014-01-15 | 安徽华鸿电气股份有限公司 | High-elasticity polyvinyl chloride flexible cable material |
| CN103606404A (en) * | 2013-11-20 | 2014-02-26 | 山东华凌电缆有限公司 | Irrigation cable |
| CN203573680U (en) * | 2013-10-15 | 2014-04-30 | 江苏双登电力科技有限公司 | Shielding type signal flexible cable for wind power generation system |
| CN204130208U (en) * | 2014-10-21 | 2015-01-28 | 常熟市鑫华电子科技有限公司 | High flexibility junction box cable |
-
2014
- 2014-10-21 CN CN201410559566.8A patent/CN104282366A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060056769A1 (en) * | 2004-09-10 | 2006-03-16 | Khemakhem M Hamed A | Hybrid fiber/copper connector system and method |
| US20130264094A1 (en) * | 2011-10-20 | 2013-10-10 | Nexans | Electrical cable with easily removable casing |
| CN103509287A (en) * | 2013-09-06 | 2014-01-15 | 安徽华鸿电气股份有限公司 | High-elasticity polyvinyl chloride flexible cable material |
| CN203573680U (en) * | 2013-10-15 | 2014-04-30 | 江苏双登电力科技有限公司 | Shielding type signal flexible cable for wind power generation system |
| CN103606404A (en) * | 2013-11-20 | 2014-02-26 | 山东华凌电缆有限公司 | Irrigation cable |
| CN204130208U (en) * | 2014-10-21 | 2015-01-28 | 常熟市鑫华电子科技有限公司 | High flexibility junction box cable |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150114 |