CN103456399A - Shielding cable of frequency changer - Google Patents
Shielding cable of frequency changer Download PDFInfo
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- CN103456399A CN103456399A CN 201310375109 CN201310375109A CN103456399A CN 103456399 A CN103456399 A CN 103456399A CN 201310375109 CN201310375109 CN 201310375109 CN 201310375109 A CN201310375109 A CN 201310375109A CN 103456399 A CN103456399 A CN 103456399A
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Abstract
The invention discloses a shielding cable of a frequency changer. The shielding cable of the frequency changer comprises three insulating main wire cores, wherein one insulating ground wire core is arranged between every two insulating main wire cores, the insulating main wire cores are double-strand wires, inner shielding layers are arranged outside the insulating main wire cores and outside the insulating ground wire cores respectively, a first general shielding layer is arranged outside the inner shielding layers, a glass fiber cloth flame retardant layer is arranged outside the first general shielding layer, a second general shielding layer is arranged outside the glass fiber cloth flame retardant layer, and an outer protecting casing layer is arranged outside the second general shielding layer. Through the mode, the shielding cable of the frequency changer is simple and reasonable in structure, high in shielding anti-interference performance and capable of fully meeting the high requirements of frequency changing systems.
Description
Technical field
The present invention relates to the cable technology field, particularly relate to a kind of frequency converter shielded type cable.
Background technology
Along with improving constantly of industrial automatization, frequency converter has obtained application very widely.Frequency converter can provide according to the actual needs of motor its needed supply voltage, and then reaches purpose energy-conservation, speed governing.
The shielding interference free performance of existing converter cable need to improve.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of frequency converter shielded type cable, simple and reasonable, has higher shielding interference free performance, fully meets the high request of frequency conversion system.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of frequency converter shielded type cable is provided, comprise: three thoroughly do away with the edge master core, be provided with an eradication edge ground core between every adjacent two eradication edge master cores, described insulation master core is twisted-pair feeder, the outside of the outside of described insulation master core and Ground wire with insulation ocver core is provided with internal shield, the outer setting of described internal shield has first total screen, the outer setting of described first total screen has the glass fabric flame-retardant layer, described glass fabric flame-retardant layer outer setting has second total screen, the outer setting of described second total screen has external sheath layer.
In a preferred embodiment of the present invention, described internal shield is proof copper-wire braided shielding stratum reticulare, described first total screen is stainless steel wire braid shielded stratum reticulare, described second total screen is stainless steel wire braid shielded stratum reticulare, the count of described internal shield is greater than the count of first total screen, and the count of described first total screen is greater than the count of second total screen.
In a preferred embodiment of the present invention, described external sheath layer is the polyurethane external sheath layer.
In a preferred embodiment of the present invention, the thickness of described external sheath layer is 4 millimeters.
The invention has the beneficial effects as follows: frequency converter shielded type cable of the present invention, simple and reasonable, there is higher shielding interference free performance, fully meet the high request of frequency conversion system.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of frequency converter shielded type cable one preferred embodiment of the present invention.
In accompanying drawing, the mark of each parts is as follows: 1, insulation master core, 2, the Ground wire with insulation ocver core, 3, internal shield, 4, first total screen, 5, the glass fabric flame-retardant layer, 6, second total screen, 7, external sheath layer.
Embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of frequency converter shielded type cable, comprise: three thoroughly do away with edge master core 1, be provided with an eradication edge ground core 2 between every adjacent two eradication edge master cores 1, described insulation master core 1 is twisted-pair feeder, the outside of the outside of described insulation master core 1 and Ground wire with insulation ocver core 2 is provided with internal shield 3, the outer setting of described internal shield 3 has first total screen 4, the outer setting of described first total screen 4 has glass fabric flame-retardant layer 5, and described glass fabric flame-retardant layer 5 has strengthened fire resistance of the present invention.
Described glass fabric flame-retardant layer 5 outer setting have second total screen 6, and the outer setting of described second total screen 6 has external sheath layer 7.
Described internal shield 3 is proof copper-wire braided shielding stratum reticulare, described first total screen 4 is stainless steel wire braid shielded stratum reticulare, described second total screen 6 is stainless steel wire braid shielded stratum reticulare, the count of described internal shield 3 is greater than the count of first total screen 4, the count of described first total screen 4 is greater than the count of second total screen 6, the combination of described internal shield 3, first total screen 4 and second total screen 6, effectively strengthened shielding interference free performance of the present invention.
Described external sheath layer 7 is the polyurethane external sheath layer.
The thickness of described external sheath layer 7 is 4 millimeters.
Frequency converter shielded type cable of the present invention, simple and reasonable, there is higher shielding interference free performance, fully meet the high request of frequency conversion system.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present invention.
Claims (4)
1. a frequency converter shielded type cable, it is characterized in that, comprise: three thoroughly do away with the edge master core, be provided with an eradication edge ground core between every adjacent two eradication edge master cores, described insulation master core is twisted-pair feeder, the outside of the outside of described insulation master core and Ground wire with insulation ocver core is provided with internal shield, the outer setting of described internal shield has first total screen, the outer setting of described first total screen has the glass fabric flame-retardant layer, described glass fabric flame-retardant layer outer setting has second total screen, and the outer setting of described second total screen has external sheath layer.
2. frequency converter shielded type cable according to claim 1, it is characterized in that, described internal shield is proof copper-wire braided shielding stratum reticulare, described first total screen is stainless steel wire braid shielded stratum reticulare, described second total screen is stainless steel wire braid shielded stratum reticulare, the count of described internal shield is greater than the count of first total screen, and the count of described first total screen is greater than the count of second total screen.
3. frequency converter shielded type cable according to claim 1, is characterized in that, described external sheath layer is the polyurethane external sheath layer.
4. frequency converter shielded type cable according to claim 3, is characterized in that, the thickness of described external sheath layer is 4 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310375109 CN103456399A (en) | 2013-08-26 | 2013-08-26 | Shielding cable of frequency changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310375109 CN103456399A (en) | 2013-08-26 | 2013-08-26 | Shielding cable of frequency changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103456399A true CN103456399A (en) | 2013-12-18 |
Family
ID=49738667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310375109 Pending CN103456399A (en) | 2013-08-26 | 2013-08-26 | Shielding cable of frequency changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103456399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928123A (en) * | 2014-03-27 | 2014-07-16 | 安徽长风电缆集团有限公司 | Flexible anti-interference cable for computer |
| CN111913037A (en) * | 2020-08-10 | 2020-11-10 | 广东电网有限责任公司 | Satellite communication data acquisition module of lightning protection design |
-
2013
- 2013-08-26 CN CN 201310375109 patent/CN103456399A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928123A (en) * | 2014-03-27 | 2014-07-16 | 安徽长风电缆集团有限公司 | Flexible anti-interference cable for computer |
| CN111913037A (en) * | 2020-08-10 | 2020-11-10 | 广东电网有限责任公司 | Satellite communication data acquisition module of lightning protection design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |