CN102646471A - Special cable for sensors - Google Patents
Special cable for sensors Download PDFInfo
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- CN102646471A CN102646471A CN2012101279588A CN201210127958A CN102646471A CN 102646471 A CN102646471 A CN 102646471A CN 2012101279588 A CN2012101279588 A CN 2012101279588A CN 201210127958 A CN201210127958 A CN 201210127958A CN 102646471 A CN102646471 A CN 102646471A
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Abstract
The invention discloses a special cable for sensors, which comprises a cable core. Filler is arranged in gaps of and outside the cable core, a double-layer aluminum foil winding layer, a double-layer copper-coated aluminum wire braided layer and a double-layer aluminum foil winding layer are sequentially arranged outside the filler to form a combined metal shield, and a low-smoke zero-halogen flame-retardant flexible polyolefin sheath is wrapped on the outermost layer in an extruded manner. By means of the combined metal shield, shielding interference resistance of the cable can be effectively improved, various signal transmission is better improved to be highly stable and distortionless, and the cable has excellent bendability and utilization convenience. In addition, cost performance is improved as compared with that of a copper wire braided cable, and the special cable belongs to environment-friendly products as little low-smoke nontoxic gas is generated in combustion of the cable.
Description
Technical field
The present invention relates to a kind of signal cable, especially a kind of sensor-specific cable.
Background technology
Sensing technology is the important technology basis of new technology revolution and information-intensive society.Along with the harsh demand of highly sophisticated device instrument to anti-electromagnetic interference performances of various transducers such as photoelectric sensor, sensor alarms; This also has higher requirement to supporting anti-emi characteristics with sensor cable simultaneously; And the supporting sensor cable of using traditionally; Its structure is generally copper conductor polyethylene insulation copper wire braiding pvc sheath, and the anti-electromagnetic interference effect of this traditional product is relatively poor, often has " the signal transmission is unstable; distorted signals, instrument misoperation " phenomenon, and obvious this individual layer copper wire shielding can not have been satisfied the harsh requirement of some transducer antagonism emi characteristics.
Summary of the invention
Technical problem to be solved by this invention provides the good sensor-specific cable of a kind of anti-electromagnetic interference performance.
A kind of sensor-specific cable of the present invention; Comprise cable core; In the cable core gap and outer setting fill; Outside filling, set gradually double-layer aluminum-foil lapping layer, double-deck copper-clad aluminium wire braid and double-layer aluminum-foil lapping layer and form the combination metallic shield, outermost layer extrudes soft low-smoke and halogen-free flame retardant polyolefin jacket.
Said cable core forms by the several wire core is stranded, and said core comprises conductor and be extruded in the outer insulating barrier of conductor, and conductor adopts the zinc-plated fine copper wire multiply structure that tangles again, and insulating barrier adopts the low density polyethylene (LDPE) insulating material.
Beneficial effect of the present invention:
The present invention can improve the anti-shielding interference effect of cable effectively owing to adopted the combination metallic shield, has improved the high stability of various signals transmission and undistorted preferably, has excellent bendability and ease of use simultaneously.In addition, compare with the copper wire braid and to have improved cost performance, only produce the gas of a small amount of LSZH during this product burning simultaneously, belong to environmentally friendly machine; The thin copper flexible cord with high conductivity coating that adopts has also improved the corrosion resistance and the anti-oxidant phenomenon of copper conductor.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Like Fig. 1, sensor-specific cable of the present invention, its cable core forms by the several wire core is stranded, and core comprises conductor 1 and is extruded in the outer insulating barrier 2 of conductor.In the cable core gap and outer setting fill, form and make up metallic shields filling outer double-layer aluminum-foil lapping layer 3, double-deck copper-clad aluminium wire braid 4 and the double-layer aluminum-foil lapping layer 5 of setting gradually, outermost layer extrudes soft low-smoke and halogen-free flame retardant polyolefin jacket 6.
The present invention is particularly useful in highly sophisticated device instrument and the inductor, and wherein conductor adopts high conductivity tinned copper wire material; The low density polyethylene (LDPE) insulating material is adopted in insulation; Wrapped, the double-deck copper-clad aluminium wire braiding of double-layer aluminum-foil, the wrapped combination metal material of double-layer aluminum-foil are adopted in shielding, play high resistance electromagnetic interference effect, have overcome the defective that sensor cable individual layer copper wire traditionally shields anti-electromagnetic interference weak effect; Sheath adopts soft low-smoke halide-free fireproof composite polyolefine material.Adopted the cable of technique scheme, can guarantee excellent shield effectiveness, guaranteed the highly stable transmission of signal and undistorted effectively, satisfied the strict demand of high-accuracy facility shielding.Cable also has excellent bendability and ease of use simultaneously.
As everyone knows, for satisfying the strict demand of high-accuracy facility to shielding, need to improve anti-external electromagnetic interference performance, promptly improve screen effect, this need carry out rigorous rational structure material design.Screen effect depends on shielding material, screen coverage rate and screen sectional area.And shielding material is good with metal material, and the screen sectional area is big more in addition, and the electric current of electromagnetic sensing can be imported underground more fast, reduces that electric current is penetrated into core and the outer interference that produces, and just screen is big more to electromagnetic attenuation A, and anti-tampering performance is just best.Screen effect is often to represent (γ=1/A) with shielding factor γ; Shielding factor is more little good more; And the mark γ of some producers such as double shield frequency-changing cable enterprise value just reaches about 0.6 on (copper wire thin around+copper strips double shield structure) at home, and this still can not adapt to the specification requirement of high-accuracy facility to shielding.For further reducing its value; This adopts the design of novel structure material; After i.e. shielding adopts two layers of overlapping wrapped sealing of aluminium foil intact, extra in addition two layers of copper-clad aluminium wire braid shielded (count reaches more than 95%) that count is bigger, the overlapping wrapped double-layer aluminum-foil composition combination metallic shield structure outside braiding again of being provided with; The γ value can reach below 0.0003; So fully guarantee the high stability of various signals transmission and undistorted, can effectively avoid the weakness of normal " the signal transmission is unstable, distorted signals, instrument misoperation " that exists of traditional cable.Therefore, adopted the cable of technique scheme, can guarantee excellent shield effectiveness, guaranteed the highly stable transmission of signal and undistorted effectively, satisfied the strict demand of high-accuracy facility shielding.Cable has excellent bendability and ease of use simultaneously.The a large amount of Halogen toxic gases that discharge when burning with traditional cable are simultaneously compared with dense smoke, only produce the gas of a small amount of LSZH during this product burning, belong to environmentally friendly machine.
The concrete application approach of the present invention is a lot, and the above only is a preferred implementation of the present invention, should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be regarded as protection scope of the present invention.
Claims (4)
1. sensor-specific cable; Comprise cable core; In the cable core gap and outer setting fill; It is characterized in that outside filling, set gradually double-layer aluminum-foil lapping layer (3), double-deck copper-clad aluminium wire braid (4) and double-layer aluminum-foil lapping layer (5) and form the combination metallic shield, outermost layer extrudes soft low-smoke and halogen-free flame retardant polyolefin jacket (6).
2. sensor-specific cable according to claim 1 is characterized in that, said cable core forms by the several wire core is stranded, and said core comprises conductor (1) and is extruded in the outer insulating barrier (2) of conductor.
3. sensor-specific cable according to claim 1 and 2 is characterized in that, conductor (1) adopts the zinc-plated fine copper wire multiply structure that tangles again.
4. sensor-specific cable according to claim 2 is characterized in that, insulating barrier (2) adopts the low density polyethylene (LDPE) insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101279588A CN102646471A (en) | 2012-04-27 | 2012-04-27 | Special cable for sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101279588A CN102646471A (en) | 2012-04-27 | 2012-04-27 | Special cable for sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102646471A true CN102646471A (en) | 2012-08-22 |
Family
ID=46659247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101279588A Pending CN102646471A (en) | 2012-04-27 | 2012-04-27 | Special cable for sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102646471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117120A (en) * | 2013-02-21 | 2013-05-22 | 无锡市华美电缆有限公司 | Signal cable for high anti-interference sensor |
| CN106448912A (en) * | 2016-12-15 | 2017-02-22 | 江苏戴普科技有限公司 | Copper-clad silver cable for rail transit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632818Y (en) * | 2003-07-14 | 2004-08-11 | 珠海宇讯同轴电缆有限公司 | Coaxial cables |
| CN101477849A (en) * | 2009-02-17 | 2009-07-08 | 安徽华星电缆集团有限公司 | Combined control electric cable for mining |
| CN201387744Y (en) * | 2009-04-14 | 2010-01-20 | 江苏中兴电缆有限公司 | Special cable for inductor |
| CN201465650U (en) * | 2009-07-10 | 2010-05-12 | 天津六○九电缆有限公司 | Light and flexible screen control cable |
| CN202549421U (en) * | 2012-04-27 | 2012-11-21 | 无锡市群星线缆有限公司 | Cable dedicated for sensor |
-
2012
- 2012-04-27 CN CN2012101279588A patent/CN102646471A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632818Y (en) * | 2003-07-14 | 2004-08-11 | 珠海宇讯同轴电缆有限公司 | Coaxial cables |
| CN101477849A (en) * | 2009-02-17 | 2009-07-08 | 安徽华星电缆集团有限公司 | Combined control electric cable for mining |
| CN201387744Y (en) * | 2009-04-14 | 2010-01-20 | 江苏中兴电缆有限公司 | Special cable for inductor |
| CN201465650U (en) * | 2009-07-10 | 2010-05-12 | 天津六○九电缆有限公司 | Light and flexible screen control cable |
| CN202549421U (en) * | 2012-04-27 | 2012-11-21 | 无锡市群星线缆有限公司 | Cable dedicated for sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117120A (en) * | 2013-02-21 | 2013-05-22 | 无锡市华美电缆有限公司 | Signal cable for high anti-interference sensor |
| CN106448912A (en) * | 2016-12-15 | 2017-02-22 | 江苏戴普科技有限公司 | Copper-clad silver cable for rail transit |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |
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| WD01 | Invention patent application deemed withdrawn after publication |