CN205645385U - Variable frequency cable - Google Patents
Variable frequency cable Download PDFInfo
- Publication number
- CN205645385U CN205645385U CN201620361206.1U CN201620361206U CN205645385U CN 205645385 U CN205645385 U CN 205645385U CN 201620361206 U CN201620361206 U CN 201620361206U CN 205645385 U CN205645385 U CN 205645385U
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Abstract
The utility model discloses a variable frequency cable, its characteristics are: including three leading bodies and a zero line conductor, leading personally experience sth. Part of the body and the zero line conductor is provided with the crosslinked polyethylene insulating layer respectively outward and constitutes three thread cores and a zero line sinle silk, and the even setting of three thread cores is around the zero line sinle silk, be provided with the prefabricated core of filling out between three thread cores, three thread cores are provided with non -woven fabric wrapping layer outward with the prefabricated core of filling out, and around wrapping the area that blocks water, the outband that blocks water is provided with copper wire woven shield to non -woven fabric wrapping layer outward, and copper wire woven shield is provided with copper strip shielding layer outward, and copper strip shielding layer is provided with fire -retardant pe sheath layer outward, is provided with the winding carbon fiber layer outside the fire -retardant pe sheath layer. The utility model has the characteristics of interference immunity is strong, cable surface intensity is high, and the surface is difficult to appear crack, long service life and waterproof fire -retardant.
Description
Technical field
This utility model belongs to field of cable technology, especially relates to a kind of frequency-changing cable.
Background technology
The energy-saving effect of converter plant is fairly obvious.It is reported that Zhejiang steam power plant is due at heavy-duty motor
In the commonly used whole generating set of frequency control motor can economize on electricity 30%.And after using frequency control
Achieving the soft start of motor makes the abrasion reduction of motor stable working motor bearings extend motor service life
And maintenance period.Therefore variable-frequency control technique is in industry such as oil, metallurgy, generating, railway, mines
Aspect is widely used in a variety of applications.But the corresponding change for connecting frequency conversion motor and variable-frequency power sources
Frequently cable is the most at the early-stage, and it is big, strong that existing frequency-changing cable the most gradually exposes interference
Spending low, easily there is slight crack in surface, service life short wait series of problems.
Summary of the invention
The purpose of this utility model is the deficiency existed for above-mentioned prior art, it is provided that a kind of frequency-changing cable,
It has, and strong interference immunity, cable surface intensity are high, and surface is not easy slight crack occur, service life length and
The feature of water proof fire retardant.
To achieve these goals, this utility model be the technical scheme is that a kind of frequency-changing cable,
Including three leading bodies and a neutral conductor, it is respectively provided with crosslinking outside described leading body and neutral conductor
Polyethylene layer and constitute three master cores and a zero line core, three master cores are arranged on uniformly
Around zero line core；It is provided with between described three master cores and prefabricated fills out core；Described three master cores are with pre-
System is filled out core and is outside equipped with non-woven fabrics lapping layer, is surrounded with waterstop, waterstop peripheral hardware outside non-woven fabrics lapping layer
Being equipped with proof copper-wire braided screen layer, proof copper-wire braided screen layer is outside equipped with copper strip shielding layer, outside copper strip shielding layer
Being provided with flame-proof polyethylene restrictive coating, flame-proof polyethylene restrictive coating is outside equipped with carbon fiber winding layer.
Described prefabricated core of filling out is concave arc sector foamed plastic bar.
Use after said structure, this utility model the most advantageously: this practicality
Novel three master cores are arranged on around zero line core uniformly, between three master cores, prefabricated filling out is set
Core, this stable symmetrical structure, due to the interchangeability of wire, has more preferable electromagnetic compatibility, to suppression
Electromagnetic interference plays a role, and can offset the humorous odd frequency in that of high order, improve frequency-changing cable
Anti-interference, decreases the electromagnetic radiation in whole system；Flame-proof polyethylene restrictive coating peripheral hardware carbon fiber twines
Winding layer so that it is surface strength improves, it is not easy to slight crack occur, service life is long；Waterstop and fire-retardant poly-
Ethylene restrictive coating enhances the water proof fire retardant performance of frequency-changing cable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
The following stated is only preferred embodiment of the present utility model, the most therefore limits of the present utility model
Protection domain, further illustrates this utility model with embodiment below in conjunction with the accompanying drawings.
Embodiment, as shown in Figure 1: a kind of frequency-changing cable, leads including three leading bodies 1 and a zero line
It is respectively arranged with crosslinked polyetylene insulated layer 3 outside body 2, leading body 1 and neutral conductor 2 and constitutes three masters
Core and a zero line core, three master cores are arranged on around zero line core uniformly, three main lines
Being provided with prefabricated core 4 of filling out between core, prefabricated core 4 of filling out is for concave arc sector foamed plastic bar, above this stable
Cable symmetrical structure due to the interchangeability of wire, have more preferable electromagnetic compatibility, to suppression electromagnetic interference
Play a role, the humorous odd frequency in that of high order can be offset, improve the anti-interference of frequency-changing cable,
Decrease the electromagnetic radiation in whole system；Three master cores and prefabricated fill out core 4 be outside equipped with non-woven fabrics around
Covering 5, is surrounded with waterstop 6 outside non-woven fabrics lapping layer 5, waterstop 6 is outside equipped with proof copper-wire braided shielding
Layer 7, proof copper-wire braided screen layer 7 is outside equipped with copper strip shielding layer 8, and copper strip shielding layer 8 is outside equipped with fire-retardant
Pe sheath layer 9, flame-proof polyethylene restrictive coating 9 is outside equipped with carbon fiber winding layer 10, owing to carbon is fine
Dimension is the new material of a kind of excellent in mechanical performance, its proportion less than the 1/4 of steel, carbon fibre resin composite wood
Material tensile strength is general is 7-9 times of steel all at more than 3500Mpa, and tensile modulus of elasticity is
230-430Gpa, is also higher than steel, therefore makes frequency-changing cable surface strength improve, it is not easy to slight crack occur,
Service life is long, and waterstop and flame-proof polyethylene restrictive coating enhance the water proof fire retardant performance of frequency-changing cable.
Claims (2)
1. a frequency-changing cable, it is characterised in that: include three leading bodies (1) and a neutral conductor
(2), it is respectively arranged with crosslinked polyetylene insulated layer (3) outside described leading body (1) and neutral conductor (2)
And constituting three master cores and a zero line core, three master cores are arranged on the week of zero line core uniformly
Enclose；It is provided with between described three master cores and prefabricated fills out core (4)；Described three master cores and prefabricated fill out core (4)
It is outside equipped with non-woven fabrics lapping layer (5), is surrounded with waterstop (6) outside non-woven fabrics lapping layer (5), blocks water
Band (6) is outside equipped with proof copper-wire braided screen layer (7), and proof copper-wire braided screen layer (7) is outside equipped with copper strips
Screen layer (8), copper strip shielding layer (8) is outside equipped with flame-proof polyethylene restrictive coating (9), flame-proof polyethylene
Restrictive coating (9) is outside equipped with carbon fiber winding layer (10).
A kind of frequency-changing cable the most according to claim 1, it is characterised in that: described prefabricated fill out core (4)
For concave arc sector foamed plastic bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361206.1U CN205645385U (en) | 2016-04-25 | 2016-04-25 | Variable frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361206.1U CN205645385U (en) | 2016-04-25 | 2016-04-25 | Variable frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205645385U true CN205645385U (en) | 2016-10-12 |
Family
ID=57059310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620361206.1U Expired - Fee Related CN205645385U (en) | 2016-04-25 | 2016-04-25 | Variable frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205645385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945930A (en) * | 2017-12-28 | 2018-04-20 | 无锡江南电缆有限公司 | A kind of pvc sheath braided wires conductor support water-resistant power cable |
-
2016
- 2016-04-25 CN CN201620361206.1U patent/CN205645385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945930A (en) * | 2017-12-28 | 2018-04-20 | 无锡江南电缆有限公司 | A kind of pvc sheath braided wires conductor support water-resistant power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Variable frequency cable Effective date of registration: 20170927 Granted publication date: 20161012 Pledgee: Zhejiang Rural Commercial Bank of China branch of Limited by Share Ltd Pledgor: Mingpin Cable Group Co., Ltd. Registration number: 2017330000113 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210315 Granted publication date: 20161012 Pledgee: Zhejiang Rural Commercial Bank of China branch of Limited by Share Ltd. Pledgor: MINGPIN CABLE GROUP Co.,Ltd. Registration number: 2017330000113 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20200425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |