CN109903906A - Low noise high intensity frequency-changing cable - Google Patents
Low noise high intensity frequency-changing cable Download PDFInfo
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- CN109903906A CN109903906A CN201711306549.3A CN201711306549A CN109903906A CN 109903906 A CN109903906 A CN 109903906A CN 201711306549 A CN201711306549 A CN 201711306549A CN 109903906 A CN109903906 A CN 109903906A
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- cable
- low noise
- high intensity
- copper
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Abstract
The invention discloses a kind of low noise high intensity frequency-changing cables, including three groups of power wire cores, core is filled out filled with semiconductive in the enclosure space constituted on the inside of three groups of power wire cores, three piece-root grafting ground wires, which are evenly equipped with, in gap on the outside of three groups of power wire cores collectively forms cable core, cable core is cladded with copper foil tape, copper foil tape is twisted tinned copper wire drainage thread, copper foil tape is externally provided with woven shield, woven shield is externally provided with composite jacket, and composite jacket wall thickness central location is provided with two and is parallel to each other and along the high-tensile steel wires of cable longitudinal direction setting.Compared with prior art, copper strips of the present invention+proof copper-wire braided structure ensure that the good electromagnetic shielding performance of cable, selected 3+3E structure effectively inhibits the odd harmonic in higher hamonic wave, play cable interference free performance, the high-tensile steel wires that setting is placed in parallel by two in the wall thickness center of composite jacket constitute tension member, electromagnetic compatibility in equipment group operational process is met, the intensity of cable is improved.
Description
Technical field
The invention belongs to field of cable technology, and in particular to a kind of low noise high intensity frequency-changing cable.
Background technique
It uses the equipment such as converter plant more and more on ship and platform at present to pursue energy conservation, reduces equipment mill
Damage extends equipment life.The use of frequency conversion equipment is increasing to the demand of matched private cable, technical requirements
It is higher and higher.Frequency-changing cable is because of its special use environment and performance requirement, it is necessary to consider the influence of outer bound pair frequency-changing cable with
And frequency-changing cable is to external influence, while being also contemplated that the insulation pressure resistance of frequency-changing cable, laying space, bending radius etc..
Existing common cable is unable to satisfy its demand.Meanwhile the intensity of most of naval vessel frequency-changing cable is poor, to affect using the longevity
Life.
Summary of the invention
The purpose of the present invention is to provide a kind of low noise high intensity frequency-changing cables of new construction, not only have compared with Qiang Kanggan
Immunity energy can meet electromagnetic compatibility in equipment group operational process, and intensity is high, low noise, securely and reliably.
For this purpose, the technical scheme is that a kind of low noise high intensity frequency-changing cable, including three groups dynamic
Line of force core, the enclosure space that three groups of power wire cores inside is constituted is interior to fill out core, three groups of power wire cores filled with semiconductive
It is evenly equipped with three piece-root grafting ground wires in the gap of outside and collectively forms cable core, the cable core is cladded with copper foil tape, the twisted plating of the copper foil tape
Tin copper wire drainage thread, the copper foil tape are externally provided with woven shield, and the woven shield is externally provided with composite jacket, described compound
Sheath wall thickness central location is provided with two and is parallel to each other and along the high-tensile steel wires of cable longitudinal direction setting.
Preferably, the woven shield by diameter be 0.2~0.4mm annealing copper wire or tinned copper wire braiding and
At.
It is constituted preferably, the power wire core coats crosslinked polyetylene insulated layer by tin plating twisted soft copper conductor.
Preferably, composite jacket is by longitudinal wrap overlapped wrinkle composite steel-plastic belt moisture-proof layer and black polyethylene sheath group
At.
Preferably, being additionally provided with the webbed skeleton resistance to compression layer of a circle braided steel wire on the inside of the composite jacket.
Compared with the existing technology, pressure-resistant performance of the invention is more superior, and crosslinked polyetylene insulated layer can generally bear height
2~3 times of system peak voltage caused by subharmonic is superimposed, while crosslinked polyethylene has heat resistance, and cable can be made normal
The rated temperature of conductor is up to 90 DEG C when work, and the maximum temperature of cable makes its load of the cable in same section up to 250 DEG C when short-circuit
Flow is bigger.Copper strips of the present invention+proof copper-wire braided structure ensure that the good electromagnetic shielding performance of cable simultaneously, weaken
Interference of the frequency-changing cable electromagnetic wave to external device and system.Selected 3+3E structure effectively inhibits in higher hamonic wave
Odd harmonic plays cable interference free performance, meets electromagnetic compatibility in equipment group operational process.Three piece-root grafting earthed conductors simultaneously
The influence divided structure equally and can effectively reduce higher hamonic wave, weaken variable-frequency motor noise, guarantee equipment stable operation, extend equipment
Service life is realized energy conservation to a greater extent, is improved efficiency.In addition, parallel by two in the setting of the wall thickness center of composite jacket
The high-tensile steel wires of placement constitute tension member, help to promote cable strength, can be to cable when cable bears larger pulling force
It plays a protective role.Meanwhile a circle webbed skeleton resistance to compression layer of braided steel wire is equipped on the inside of sheath, further improve electricity
The tensile and compressive property of cable.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention is further described in conjunction with the embodiments with reference to the accompanying drawings.
As shown in Figure 1, a kind of low noise high intensity frequency-changing cable, including three groups of power wire cores, three groups of power wire cores
Core is filled out filled with semiconductive in the enclosure space that inside is constituted, on the outside of three groups of power wire cores in gap with being evenly equipped with three piece-root graftings
Line 3 collectively forms cable core, and the cable core is cladded with copper foil tape 4, and the copper foil tape is twisted tinned copper wire drainage thread, the copper foil tape
It is externally provided with woven shield 5, the woven shield is externally provided with composite jacket 6, the setting of composite jacket wall thickness central location
There are two to be parallel to each other and along the high-tensile steel wires of cable longitudinal direction setting.Wherein, the woven shield is 0.2 by diameter
The annealing copper wire or tinned copper wire of~0.4mm weaves.The power wire core is poly- by the tin plating twisted cladding of soft copper conductor 1 crosslinking
Ethylene insulating layer 2 is constituted.Oversheath is made of longitudinal wrap overlapped wrinkle composite steel-plastic belt moisture-proof layer and black polyethylene sheath.Institute
It states and is additionally provided with the webbed skeleton resistance to compression layer of a circle braided steel wire on the inside of composite jacket.
Present invention is generally directed to the improvement that naval vessel frequency-changing cable structure is carried out, and preferably implement the foregoing is merely of the invention
Example, therefore, it does not limit the scope of the patents of the invention, therefore use such as simple carried out by description of the invention and schema content
Variation and equivalent transformation, are intended to be limited solely by the scope of the patents of the invention.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (5)
1. a kind of low noise high intensity frequency-changing cable, including three groups of power wire cores, which is characterized in that in three groups of power wire cores
Core is filled out filled with semiconductive in the enclosure space that side is constituted, is evenly equipped with three piece-root grafting ground wires in gap on the outside of three groups of power wire cores
Cable core is collectively formed, the cable core is cladded with copper foil tape, and the copper foil tape is twisted tinned copper wire drainage thread, the copper foil tape peripheral hardware
There is woven shield, the woven shield is externally provided with composite jacket, and composite jacket wall thickness central location is provided with two
It is parallel to each other and along the high-tensile steel wires of cable longitudinal direction setting.
2. low noise high intensity frequency-changing cable according to claim 1, which is characterized in that the woven shield is by diameter
It is woven for the annealing copper wire or tinned copper wire of 0.2~0.4mm.
3. low noise high intensity frequency-changing cable according to claim 1, which is characterized in that the power wire core is by tin plating strand
It closes soft copper conductor and coats crosslinked polyetylene insulated layer composition.
4. low noise high intensity frequency-changing cable according to claim 1, which is characterized in that the composite jacket is taken by longitudinal wrap
Wrinkle composite steel-plastic belt moisture-proof layer and black polyethylene the sheath composition connect.
5. low noise high intensity frequency-changing cable according to claim 1, which is characterized in that also set on the inside of the composite jacket
There is the webbed skeleton resistance to compression layer of a circle braided steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306549.3A CN109903906A (en) | 2017-12-11 | 2017-12-11 | Low noise high intensity frequency-changing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306549.3A CN109903906A (en) | 2017-12-11 | 2017-12-11 | Low noise high intensity frequency-changing cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109903906A true CN109903906A (en) | 2019-06-18 |
Family
ID=66941988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711306549.3A Withdrawn CN109903906A (en) | 2017-12-11 | 2017-12-11 | Low noise high intensity frequency-changing cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109903906A (en) |
-
2017
- 2017-12-11 CN CN201711306549.3A patent/CN109903906A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190618 |
|
| WW01 | Invention patent application withdrawn after publication |