CN204857293U - Ocean engineering equips with low pressure frequency conversion cable - Google Patents
Ocean engineering equips with low pressure frequency conversion cable Download PDFInfo
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- CN204857293U CN204857293U CN201520591042.7U CN201520591042U CN204857293U CN 204857293 U CN204857293 U CN 204857293U CN 201520591042 U CN201520591042 U CN 201520591042U CN 204857293 U CN204857293 U CN 204857293U
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Abstract
The utility model discloses an ocean engineering equips with low pressure frequency conversion cable, include by three big insulation core and three stranding sinle silks that little insulation core symmetry stranding constitutes, the stranding sinle silk be equipped with outward around wrapping up tight layer, the stranding sinle silk with be equipped with the filling layer between wrapping up tight layer, tight layer is outer to be equipped with interior sheath around wrapping up, interior sheath be equipped with outward around the package shielding layer, around the package shielding layer be equipped with woven shield outward, woven shield be equipped with the outer jacket outward. The utility model discloses a filling layer has guaranteed that the sinle silk stable in structure behind the stranding is indeformable, has increased frequency conversion cable structure's stability for the ocean engineering, adopt around the package shielding with weave the dual combination shielding structure of shielded, increased the bulk shielding effect of cable, be applicable to various ocean engineering equipment systems, especially be suitable for the narrow and small space of environment and lay.
Description
Technical field
The utility model belongs to frequency-changing cable field, relates to a kind of cable, particularly relates to a kind of marine engineering equipment low-voltage variable frequency cable.
Background technology
Ocean takes up an area 2/3rds of sphere area, however the development activities of the mankind so far but primary limitation taking up an area the land of sphere area 1/3rd.Along with the continuous scarcity of land resources, exploitation ocean, Development of Marine economy are the only ways of whole human survival and social development.In recent years, marine engineering equipment developed rapidly, also more and more have employed frequency conversion equipment energy-conservation to pursue in ocean engineering system, reduced equipment attrition, the extension device life-span.The demand of use to special frequency-changing cable supporting with it of frequency conversion equipment is increasing, also more and more higher to its technical requirement.
Due to offshore engineering equipment environment for use at sea or greater coasting area, environment for use is relative to more complicated, severe land, also just more strict with the requirement of low-voltage variable frequency cable to marine engineering equipment comparatively speaking, common frequency-changing cable structure and material can not meet the instructions for use in offshore engineering equipment.In industry at present for low-voltage variable frequency cable shield effect it is preferred that 3+3 symmetrical structure, but the space that ocean engineering low-voltage variable frequency cable majority lays is not very large, little will inevitably the causing in space bends more, so the cable meeting of symmetry is because bending and causing asymmetric repeatedly, cause the core in cable asymmetric, cause loop to occur eccentric, the effect of electromagnetic shielding sharply declines.
Notification number CN204407075U discloses the excellent low-voltage variable frequency cable of a kind of shield effectiveness, but there is the deficiency that shielding properties decline that the structural deformation conditions such as cable bend torsion in mounting and installation process cause, structural instability, anti-core migration deformation performance are poor, can not market demand be met.
Summary of the invention
The purpose of this utility model is to provide a kind of marine engineering equipment low-voltage variable frequency cable, there is the feature of Stability Analysis of Structures, anti-core migration distortion, fire-resistant, salt spray resistance, resistance to mud, high shielding properties, its surface transfer impedance is lower with shielding rejection coefficient, is applicable in various marine engineering equipment frequency conversion system.
The purpose of this utility model can be achieved through the following technical solutions.
A kind of marine engineering equipment low-voltage variable frequency cable, comprise be made up of with three symmetrical strandings of little insulated wire cores three large insulated wire cores become cable core, described one-tenth cable core peripheral hardware has wrappedly tightens layer, becomes cable core and wrapped tightening between layer to be provided with packed layer; Described wrapped tightening outside layer is provided with sheath; Lapped shielding layer is provided with outside described sheath; Woven shield is provided with outside described lapped shielding layer; Outer jacket is provided with outside described woven shield.
Described large insulated wire cores comprises the first conductor, is provided with the first flame retardant coating outside the first conductor, is provided with the first insulating barrier outside the first flame retardant coating; Described little insulated wire cores comprises the second conductor, is provided with the second flame retardant coating outside the second conductor, is provided with the second insulating barrier outside the second flame retardant coating.
The first described conductor and the second conductor strandedly to form by multiply tinned copper conductor is regular.
The first described flame retardant coating is overlapping wrapped by two-layer synthetic mica tape with the second flame retardant coating, wrappedly puts up rate >=25%; The first described insulating barrier and the second insulating barrier adopt low flue unhalogen flame-retarded ethylpropyl rubber to make.
Described packed layer is made up of high flame retardant gasket for packing and industrial super glue.
Described wrapped layer of tightening adopts polyester belt to tighten, and puts up rate >=20%.
Described sheath adopts the irradiation low-smoke non-halogen flame-retardant cross-linked polyolefin of resistance to mud to extrude and makes.
Described lapped shielding layer wrappedly to be formed by aluminum plastic belt is overlapping, wrappedly puts up rate >=20%, in aluminum plastic belt with 5/0.52mm tinned copper wire as electrical connection silk.
Described woven shield is woven by tinned copper wire and forms, count >=90%.
Described outer jacket is extruded by the irradiation low-smoke non-halogen flame-retardant cross-linked polyolefin of resistance to mud and forms.
The beneficial effects of the utility model: the utility model packed layer adopts anti-core to move distressed structure, during stranding, high flame retardant gasket for packing and the mixing of industrial super glue are filled, ensure that the core structure after stranding is stablized indeformable, add the stability of ocean engineering frequency-changing cable structure, prevent the shielding properties caused because of structural deformation conditions such as cable bend torsions in mounting and installation process from declining; The utility model have employed the double combinations shielding construction of wrapped shielding and braid shielded, adds the bulk shielding effect of cable, is applicable to, in various marine engineering equipment system, be particularly suitable for environment small space and lay.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
In figure, sequence number is: the first conductor-1, the first flame retardant coating-2, the first insulating barrier-3, the second conductor-4, the second flame retardant coating-5, the second insulating barrier-6, packed layer-7, wrappedly tightens layer-8, sheath-9, lapped shielding layer-10, woven shield-11, outer jacket-12.
Embodiment
As Fig. 1, marine engineering equipment low-voltage variable frequency cable, comprise and form into cable core by three large insulated wire cores with three symmetrical strandings of little insulated wire cores, large insulated wire cores comprises the first conductor 1, first conductor 1 is made up of tinned copper wire, be extrude the first insulating barrier 3 outside the first flame retardant coating 2, first flame retardant coating 2 outside first conductor 1.Little insulated wire cores comprises the second conductor 4, second conductor 4 and is made up of tinned copper wire, is to extrude the second insulating barrier 6 outside the second flame retardant coating 5, second flame retardant coating 5 outside the second conductor 4.And then high flame retardant gasket for packing and the mixing of industrial super glue are filled to cable core formation packed layer 7, becoming cable core is outward wrapped layer 8 of tightening, wrapped tightening outside layer 8 extrudes sheath 9, the outer lapped shielding layer 10 of sheath 9, lapped shielding layer 10 is outer is woven shield 11, extrudes outer jacket 12 outside woven shield 11.
First conductor 1 and the second conductor 4 are formed by strands tinned copper conductor system of twisting, 50mm
27 category-B structures are adopted with lower conductor.
First flame retardant coating 2 and the second flame retardant coating 5 adopt 2 layers of synthetic mica tape overlap wrapped, wrappedly put up rate >=25%.
First insulating barrier 3 and the second insulating barrier 6 adopt high resistance low flue unhalogen flame-retarded ethylpropyl rubber material to extrude.
Packed layer 7 adopts high flame retardant gasket for packing and the mixing of industrial super glue to fill.
Wrapped layer 8 of tightening adopts polyester belt to tighten, and puts up rate >=20%.
Sheath 9 adopts the irradiation low-smoke non-halogen flame-retardant crosslinked polyolefin materials of resistance to mud to extrude formation.
Lapped shielding layer 10 adopts the wrapped formation of aluminium plastic membrane band, inside has the tinned copper wire of 5/0.52mm as electrical connection silk, wrappedly puts up rate >=20%.
Woven shield 11 adopts tinned copper wire material to weave, count >=90%.
Oversheath 12 adopts the irradiation low-smoke non-halogen flame-retardant crosslinked polyolefin materials of resistance to mud to extrude formation.
Above content is only to the utility model structure example and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, protection range of the present utility model all should be belonged to.
Claims (10)
1. a marine engineering equipment low-voltage variable frequency cable, comprise be made up of the symmetrical strandings of three large insulated wire cores and three little insulated wire cores become cable core, it is characterized in that: described one-tenth cable core peripheral hardware has wrappedly tightens layer, become cable core and wrapped tightening between layer to be provided with packed layer; Described wrapped tightening outside layer is provided with sheath; Lapped shielding layer is provided with outside described sheath; Woven shield is provided with outside described lapped shielding layer; Outer jacket is provided with outside described woven shield.
2. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described large insulated wire cores comprises the first conductor, is provided with the first flame retardant coating outside the first conductor, is provided with the first insulating barrier outside the first flame retardant coating; Described little insulated wire cores comprises the second conductor, is provided with the second flame retardant coating outside the second conductor, is provided with the second insulating barrier outside the second flame retardant coating.
3. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 2, is characterized in that: the first described conductor and the second conductor strandedly to form by multiply tinned copper conductor is regular.
4. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 2, is characterized in that: the first described flame retardant coating is overlapping wrapped by two-layer synthetic mica tape with the second flame retardant coating, wrappedly puts up rate >=25%; The first described insulating barrier and the second insulating barrier are made by low flue unhalogen flame-retarded ethylpropyl rubber.
5. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described packed layer is made up of high flame retardant gasket for packing and industrial super glue.
6. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described wrapped layer of tightening is tightened by polyester belt, puts up rate >=20%.
7. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described sheath adopts the irradiation low-smoke non-halogen flame-retardant cross-linked polyolefin of resistance to mud to extrude and makes.
8. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described lapped shielding layer wrappedly to be formed by aluminum plastic belt is overlapping, wrappedly puts up rate >=20%, in aluminum plastic belt with 5/0.52mm tinned copper wire as electrical connection silk.
9. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described woven shield is woven by tinned copper wire and forms, count >=90%.
10. a kind of marine engineering equipment low-voltage variable frequency cable according to claim 1, is characterized in that: described outer jacket is extruded by the irradiation low-smoke non-halogen flame-retardant cross-linked polyolefin of resistance to mud and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591042.7U CN204857293U (en) | 2015-08-08 | 2015-08-08 | Ocean engineering equips with low pressure frequency conversion cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591042.7U CN204857293U (en) | 2015-08-08 | 2015-08-08 | Ocean engineering equips with low pressure frequency conversion cable |
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| Publication Number | Publication Date |
|---|---|
| CN204857293U true CN204857293U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520591042.7U Active CN204857293U (en) | 2015-08-08 | 2015-08-08 | Ocean engineering equips with low pressure frequency conversion cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575479A (en) * | 2015-12-30 | 2016-05-11 | 合肥星辰电线电缆股份有限公司 | Variable frequency cable |
| CN108182992A (en) * | 2016-12-08 | 2018-06-19 | 王士勇 | A kind of fire-retardant frequency-conversion power cable of mesolow |
-
2015
- 2015-08-08 CN CN201520591042.7U patent/CN204857293U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575479A (en) * | 2015-12-30 | 2016-05-11 | 合肥星辰电线电缆股份有限公司 | Variable frequency cable |
| CN108182992A (en) * | 2016-12-08 | 2018-06-19 | 王士勇 | A kind of fire-retardant frequency-conversion power cable of mesolow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 238339 Anhui city of Wuhu province Wuwei County high tech Industrial Park High Road No. 18 Patentee after: Anhui Shangwei Cable Co., Ltd. Address before: 241000 Anhui city of Wuhu province Wuwei County high tech Industrial Park High Road No. 18 Patentee before: Anhui Star Cable Co., Ltd. |