CN102831967B - High-temperature-resistant low-noise cable - Google Patents
High-temperature-resistant low-noise cable Download PDFInfo
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- CN102831967B CN102831967B CN201210313776.XA CN201210313776A CN102831967B CN 102831967 B CN102831967 B CN 102831967B CN 201210313776 A CN201210313776 A CN 201210313776A CN 102831967 B CN102831967 B CN 102831967B
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Abstract
The invention discloses a high-temperature-resistant low-noise cable, which comprises at least one strand of stranded conductor, wherein each stranded conductor is wrapped by a main shielding layer, each strand of stranded conductor is sequentially wrapped by a semiconductor inner shielding layer, an insulation layer, a semiconductor outer shielding layer and an auxiliary shielding layer, the semiconductor inner shielding layer and the semiconductor outer shielding layer are respectively made of an extruded-type semiconductor ceramic silicon rubber material, the insulation layer and an outer protection layer are made of an extruded-type ceramic silicon rubber material, and the auxiliary shielding layer and the main shielding layer are formed by braiding nickel-clad copper or pure nickel wire. Due to the adoption of the high-temperature-resistant low-noise cable, the problem in the prior art that the low-noise cable does not have a high temperature resistant characteristic, the contradiction between the low-noise property and high-temperature resistant requirement is solved through the selection of materials, the cable structure and appropriate technical design, and a low-noise cable which can be used under the temperature of 500 DEG C for a long time is provided.
Description
Technical field
The present invention relates to a kind of low noise cable, especially a kind of can the low noise cable of long-term work under 500 degree temperature environments.
Background technology
under the extraneous factor effects such as bending, vibration, impact, variations in temperature, cable itself will produce a certain amount of electrostatic signal (or claiming construction of cable noise), and the cable that conventionally construction of cable noise is less than to 5mV is referred to as low noise cable.Measure and all need to use low noise cable at the tiny signal in multiple fields such as industrial measurement and control, medical science, national defence.More common low noise cable has polyethylene insulation low noise cable, F46 insulation low noise cable, the low noise cable of resistance to irradiation, low electric capacity low noise cable, watertight low noise cable etc. at present, but lacks the low noise cable of high temperature resistant grade.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-temperature resistant low-noise cable, by the selection of structure and material, can long-term work under hot environment, and noise is low when work.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of high-temperature resistant low-noise cable, comprise at least one stranded conductor, described stranded conductor is all wrapped in a total screen, described per share stranded conductor is all enclosed with semiconductive internal shield, insulating barrier, semiconductive outer shielding layer and sub-shield outward successively, and described total screen is also enclosed with outer jacket outward.
Aforesaid high-temperature resistant low-noise cable, is characterized in that: described semiconductive internal shield and semiconductive outer shielding layer are extrusion type semiconductive ceramic SiClx quality of rubber materials, and described insulating barrier and outer jacket are extrusion type ceramic silicon rubber material.
Aforesaid high-temperature resistant low-noise cable, is characterized in that: described stranded conductor is nickel-clad copper or pure nickel wire is stranded forms.
Aforesaid high-temperature resistant low-noise cable, is characterized in that: described sub-shield and being formed by the braiding of nickel-clad copper or pure nickel wire high-tension, and the diameter of described nickel-clad copper or pure nickel wire is 0.08mm-0.2mm, count is greater than 80%.
Aforesaid high-temperature resistant low-noise cable, is characterized in that: described total screen is formed by nickel-clad copper or pure nickel wire braiding.
Aforesaid high-temperature resistant low-noise cable, is characterized in that: the thickness of described semiconductive internal shield, insulating barrier, semiconductive outer shielding layer is 0.2mm-1.5mm.
The invention has the beneficial effects as follows: by adopting at least one nickel-clad copper or pure nickel stranded conductor, the inside and outside screen of extrusion type semiconductive ceramic SiClx rubber, extrusion type ceramic silicone rubber insulation layer, and nickel-clad copper or pure nickel wire woven separated-shielding layer, ad hoc structure and the materials such as extrusion type ceramic silicon rubber outer jacket, make cable of the present invention have following advantage:
1, long-term nominal operation temperature range is :-60～500 DEG C;
2, meet B level fire-resisting cable requirement in standard GB12666;
3, when 500 DEG C and following temperature, the structureborne noise≤5mV of cable;
4, cable softness before high temperature burns candle, it is convenient to lay and install.
Brief description of the drawings
Fig. 1 is the structural representation of high-temperature resistant low-noise cable of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, a kind of high-temperature resistant low-noise cable, comprise at least one stranded conductor 1, described stranded conductor 1 is all wrapped in a total screen 6, the outer semiconductive internal shield 2 that is all enclosed with successively of described per share stranded conductor 1, insulating barrier 3, semiconductive outer shielding layer 4 and sub-shield 5, the outer outer jacket 7 that is also enclosed with of described total screen 6, described semiconductive internal shield 2 and semiconductive outer shielding layer 4 are extrusion type semiconductive ceramic SiClx quality of rubber materials, described insulating barrier 3 and outer jacket 7 are extrusion type ceramic silicon rubber material, utilize the different qualities of ceramic silicon rubber in the time of high low temperature, make cable can high temperature resistantly have again firm structure, in the time of 500 DEG C of high temperature, the semi-conductive layer of cable, all ceramics completely of insulating barrier, not only heatproof but also have firm structure of cable now, also keep electric property, thereby the measuring junction of having realized cable has the characteristic of high-temperature resistant low-noise, the instrument link of cable has also met low noise requirement simultaneously, and have more flexibility, easy to use.
And ceramic silicon rubber is directly used in to the production that extrudes of the internal shield 2 of cable and the semi-conductive layer of outer shielding layer 4, insulating barrier 3, outer jacket 7, not only production technology is simple, and every process conditions are easily adjusted easily control, and production cost is also relatively cheap.
Stranded conductor 1 is closed or stranded forming by nickel-clad copper or pure nickel material bundle, makes it to become multiply core, has ensured that stranded conductor 1 has corresponding pliability and rounding property.
Sub-shield 5 and being formed by the braiding of nickel-clad copper or pure nickel wire high-tension, the diameter of nickel-clad copper or pure nickel wire is 0.08mm-0.2mm, count is greater than 80%, total screen 6 is formed by nickel-clad copper or pure nickel wire braiding, the thickness of the inside and outside screen of semiconductive ceramic SiClx rubber, ceramic silicone rubber insulation layer 3 is 0.2mm-1.5mm, ensured that cable structure is stable, and the electrostatic signal (also can be described as construction of cable noise) that cable itself is produced drops to minimum.
Total screen 6 and each sub-shield 5 close contacts, ground connection when use, has guaranteed the reliability of metallic shield, and has shielded the interference of outer signals to cable itself, has guaranteed cable low noise characteristic.
In sum, a kind of high-temperature resistant low-noise cable provided by the invention, solves the contradiction of cable low noise characteristic, high temperature resistant requirement by material selection, cable structure and suitable technological design, provide a kind of can be for a long time at the low noise cable of 500 DEG C of uses.
More than show and described general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (5)
1. a high-temperature resistant low-noise cable, comprise at least one stranded conductor (1), described stranded conductor (1) is all wrapped in a total screen (6), the outer semiconductive internal shield (2) that is all enclosed with successively of described per share stranded conductor (1), insulating barrier (3), semiconductive outer shielding layer (4) and sub-shield (5), the outer outer jacket (7) that is also enclosed with of described total screen (6), it is characterized in that: described semiconductive internal shield (2) and semiconductive outer shielding layer (4) are extrusion type semiconductive ceramic SiClx quality of rubber materials, described insulating barrier (3) and outer jacket (7) are extrusion type ceramic silicon rubber material.
2. high-temperature resistant low-noise cable according to claim 1, is characterized in that: described stranded conductor (1) is by nickel-clad copper or pure nickel wire is stranded forms.
3. high-temperature resistant low-noise cable according to claim 2, is characterized in that: described sub-shield (5) is formed by nickel-clad copper or the braiding of pure nickel wire high-tension, and the diameter of described nickel-clad copper or pure nickel wire is 0.08mm-0.2mm, and count is greater than 80%.
4. high-temperature resistant low-noise cable according to claim 3, is characterized in that: described total screen (6) is formed by nickel-clad copper or pure nickel wire braiding.
5. high-temperature resistant low-noise cable according to claim 4, is characterized in that: the thickness of described semiconductive internal shield (2), insulating barrier (3), semiconductive outer shielding layer (4) is 0.2mm-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313776.XA CN102831967B (en) | 2012-08-30 | 2012-08-30 | High-temperature-resistant low-noise cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313776.XA CN102831967B (en) | 2012-08-30 | 2012-08-30 | High-temperature-resistant low-noise cable |
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| Publication Number | Publication Date |
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| CN102831967A CN102831967A (en) | 2012-12-19 |
| CN102831967B true CN102831967B (en) | 2014-06-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103093880A (en) * | 2013-02-21 | 2013-05-08 | 江苏永鼎电气有限公司 | Low-cost flexible high-temperature-resistant low-noise cable |
| CN104744804B (en) * | 2015-04-16 | 2017-03-08 | 中广核三角洲（中山）高聚物有限公司 | A kind of preparation method of low noise EVA CABLE MATERIALS |
| CN105895254A (en) * | 2016-05-30 | 2016-08-24 | 天津朗兴电线电缆有限公司 | Symmetrically-stranded high-temperature-resistant low-noise cable and manufacturing method therefor |
| CN110473651A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of coaxial low noise cable |
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| CN101752031A (en) * | 2010-01-15 | 2010-06-23 | 上海特缆电工科技有限公司 | Heat-resisting service cable and production method thereof |
| CN201584213U (en) * | 2010-03-05 | 2010-09-15 | 九星控股集团有限公司 | Water-resisting steel wire cross-linking power cable |
| CN201765865U (en) * | 2010-09-07 | 2011-03-16 | 扬州亚光电缆有限公司 | High temperature resistant fireproofing nanoscale flexible butt cable |
| CN202816426U (en) * | 2012-08-30 | 2013-03-20 | 江苏永鼎电气有限公司 | High-temperature-resistant low-noise cable |
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Effective date of registration: 20180209 Address after: Town in Wujiang City, Suzhou City, Jiangsu province 215211 National Highway 318, the north section of 74K Co-patentee after: Jiangsu Etern Co., Ltd. Patentee after: Jiangsu Yongding Electric Co.,Ltd. Address before: Town in Wujiang City, Suzhou City, Jiangsu province 215211 National Highway 318, the north section of 74K Patentee before: Jiangsu Yongding Electric Co.,Ltd. |
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