CN203850009U - A high temperature resistant extrusion resistant computer shield cable - Google Patents
A high temperature resistant extrusion resistant computer shield cable Download PDFInfo
- Publication number
- CN203850009U CN203850009U CN201420119981.7U CN201420119981U CN203850009U CN 203850009 U CN203850009 U CN 203850009U CN 201420119981 U CN201420119981 U CN 201420119981U CN 203850009 U CN203850009 U CN 203850009U
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- layer
- cable
- high temperature
- temperature resistant
- support bracket
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Abstract
The utility model discloses a high temperature resistant extrusion resistant computer shield cable. Two shield conductors are inserted along grooves in the two sides of a support rack to form a rectangular cable core. A glass fiber tape lapping wrapping layer wraps the cable core in a closely attached mode. An outer brass wire woven shield layer, a polyurethane insulating layer, a steel band armor layer and a fluororesin oversheath layer sequentially wrap the glass fiber tape lapping wrapping layer. Hollow flexible pipes arranged at equal intervals are arranged in the polyurethane insulating layer in an annular mode. Resilient supports are arranged in all the hollow flexible pipes. The high temperature resistant extrusion resistant computer shield cable can be laid out in a corrosive environment with a high temperature. The cable is also extrusion resistant, and is used as transition for connecting common computer shield cables which can not be laid out in a complex environment. The high temperature resistant extrusion resistant computer shield cable is high in mechanical strength; energization accidents due to cable gouges and bumping are avoided; and current-carrying capacity and outputs of signals are substantially improved.
Description
Technical field
The utility model relates to technical field of electric wires and cables, relates in particular to a kind of high temperature resistant computer shielded cable of resistance to extruding.
Background technology
Along with the high speed development of China's industry, electric automatization degree is in the popularization and application of every profession and trade, plastic insulation computer cable constantly increases in the industrial scope of application and consumption, and some special factories and miness and industry also need to use a large amount of plastic insulation computer cables.But the plastic insulation computer cable of GB/T9330 prescribed by standard is also not suitable for these special industries and some special environment occasions.
For example: overload capacity and the short circuit thermal capacity of common plastics insulation computer cable are little, and long-term work temperature is 70 DEG C or 90 DEG C, can not bear higher ambient temperature.Polyvinyl chloride insulation is heated and can shrinks simultaneously, and thermal circulation performance is poor, affects the fail safe of circuit working; When common plastics insulation computer cable is laid in greasy dirt, neat place, due to the existence of oil and chemical substance, its insulating barrier can swelling, thus aging, chap, forfeiture mechanical and physical performance and cause scrapping of electric wire; Common plastics insulation computer cable insulating barrier mechanical strength is relatively low, easily by gouge, damage and cause energising accident, be not more suitable for the environment that lays of resistance to extruding; In the time that common plastics insulation computer cable has moisture content to immerse, insulating dielectric layer loss increases, and insulation resistance declines, and affects electric wire useful life.
Utility model content
In order to solve the technical problem existing in background technology, the utility model proposes a kind of high temperature resistant computer shielded cable of resistance to extruding, can not only in high temperature, corrosive atmosphere, normally work, and prevent the damage of mechanical external force, greatly improve the output of ampacity and the signal of cable.
The high temperature resistant computer shielded cable of resistance to extruding of one the utility model proposes, comprise support bracket, two shielded conductors, glass fiber tape lapping layer, outer proof copper-wire braided screen, polyurethane insulating layer, steel-tape armouring layer and fluororesin external sheath layer, shielded conductor comprises heart yearn and is coated on successively the composite fire layer outside heart yearn, interior proof copper-wire braided screen and polyvinyl chloride insulation layer form, support bracket comprises two transverse slats and a riser, the two ends of riser are connected with the middle part of two transverse slats respectively and form the support bracket that cross section is I shape, two shielded conductors insert and form rectangle cable core along the groove of support bracket both sides, the medial surface of transverse slat is provided with the anti-skid structure contacting with shielded conductor, it is coated that glass fiber tape lapping layer is close to cable core, proof copper-wire braided screen, polyurethane insulating layer, steel-tape armouring layer and fluororesin external sheath layer outside glass fiber tape lapping layer is coated outward successively, be circular layout in the polyurethane insulating layer hollow hoses of a circle spaced set, is equipped with flexible supporting frames in hollow hoses.
Preferably, anti-skid structure is the anti-slip veins that is arranged on transverse slat medial surface, and anti-slip veins cross section is wavy.
Preferably, support bracket adopts steel material to make, coated insulation layer on support bracket.
Preferably, support bracket upper cross plate both sides are equipped with inside bending, for strengthening the intensity at transverse slat two ends.
Preferably, the cross section of hollow hoses is oval, and the major axis two ends of hollow hoses, respectively near outer proof copper-wire braided screen and steel-tape armouring layer, can provide larger strain space like this in the time of extruding.
Preferably, the cross section of flexible supporting frames is right-angled intersection form.
Preferably, composite fire layer is followed successively by fire-resistant isinglass belt, fire-resistant inorganic short fiber adhesive-layer and elastomer strap from inside to outside.
Preferably, the fluororesin material that fluororesin external sheath layer adopts, comprises following percentage by weight composition: tetrafluoro ethylene polymer: 30～70wt%, ZnOw: 15～35wt%, filler (not comprising perlite): 5～20wt%, perlite: 3～8wt%.Above-mentioned filler is one or more combination in carbon fiber, coke blacking, graphite powder, talcum powder, glass fibre, molybdenum bisuphide.During as cable jacket, in above-mentioned formula, can add oxidation stabilizers, heat-resisting stabilizing agent, weather-proof stabilizer, fire retardant.Fluororesin external sheath layer adopts tetrafluoro ethylene polymer as matrix resin, tetrafluoro ethylene polymer fusing point is 327 DEG C, be suitable as the good parts of mechanical strength and thermal endurance, can not only in hot environment, normally work, prevent the damage of mechanical external force, greatly improve the output of ampacity and the signal of cable; ZnOw has improved the dispersiveness of tetrafluoro ethylene polymer, and combines with other fillers, has improved the resistance to crowded friction and abrasion of fluororesin external sheath layer and compression resistant creep properties; Because fluororesin molecule adhesion is large, in known macromolecule key, C-F key is one of key the most firmly, can effectively anti-sealing, the intrusion of greasy dirt and moisture.
Preferably, the fluororesin material that fluororesin external sheath layer adopts, comprises following percentage by weight composition: tetrafluoro ethylene polymer: 40～60wt%, ZnOw: 20～30wt%, filler (not comprising perlite): 10～15wt%, perlite: 4～6wt%.
Common computer shielded type cable can not be at high temperature, in corrosive atmosphere, normally work, hold damage that can't stand mechanical external force, the ampacity of cable and the output of signal are weakened, the utility model above-mentioned high temperature that can be laid in, in corrosive atmosphere, because the utility model cable core is rectangle, lay simple, between cable, be difficult for being wound around, also ability extruding of cable, for can not the be laid in common computer shielded type cable of complex environment of excessive connection, mechanical strength is high, avoid cable gouge, the energising accident causing of damaging, greatly improve the output of ampacity and the signal of cable.
In the utility model, shielded conductor is arranged in the groove in support bracket, and coated insulation layer on support bracket is avoided shielded conductor electric leakage to cause that steel support bracket is charged, thereby caused electric power accident; Shielded conductor is provided with composite fire layer and interior proof copper-wire braided screen, and composite fire layer can bear high temperature, and interior proof copper-wire braided screen ensures can not produce interference between shielded conductor; Outer proof copper-wire braided screen outside cable core prevents the interference of outer signals to shielded conductor, polyurethane in polyurethane insulating layer has resilience, shock absorption and high-temperature stability, and in polyurethane insulating layer, be provided with the hollow hoses being circular layout, in hollow hoses, be provided with flexible supporting frames, shielded type cable can restore rapidly later in extruding, and steel-tape armouring layer can avoid extraneous extruding force can be applied on outer proof copper-wire braided screen and the outer proof copper-wire braided screen breakage causing; Fluororesin external sheath layer can not only normally be worked in hot environment, prevents the damage of mechanical external force, has improved resistance to crowded friction and abrasion and compression resistant creep properties; Because fluororesin molecule adhesion is large, in known macromolecule key, C-F key is one of key the most firmly, can effectively anti-sealing, the intrusion of greasy dirt and moisture.
Brief description of the drawings
Fig. 1 is the cross section structure schematic diagram of a kind of high temperature resistant computer of the resistance to extruding rectangular shield cable that the utility model proposes.
Fig. 2 is the cross section structure schematic diagram of support bracket in the utility model.
Fig. 3 is the cross section structure schematic diagram of shielded conductor in the utility model.
Embodiment
As shown in Figures 1 to 3, Fig. 1 is the cross section structure schematic diagram of a kind of digital data-logger stretch-proof antidisturbance control cable that the utility model proposes; Fig. 2 is the cross section structure schematic diagram of support bracket in the utility model; Fig. 3 is the cross section structure schematic diagram of shielded conductor in the utility model.
With reference to Fig. 1～3, the high temperature resistant computer shielded cable of resistance to extruding of one the utility model proposes, comprise support bracket 1, two shielded conductors 2, glass fiber tape lapping layer 3, outer proof copper-wire braided screen 4, polyurethane insulating layer 5, steel-tape armouring layer 6 and fluororesin external sheath layers 7, shielded conductor 2 comprises heart yearn 21 and is coated on successively the composite fire layer 22 outside heart yearn 21, interior proof copper-wire braided screen 23 and polyvinyl chloride insulation layer 24 and form, and wherein composite fire layer 22 is followed successively by fire-resistant isinglass belt, fire-resistant inorganic short fiber adhesive-layer and elastomer strap from inside to outside.
Support bracket 1 adopts steel material to make, coated insulation layer 14 on support bracket 1, support bracket 1 comprises two transverse slats 11 and a riser 12, the two ends of riser 12 are connected with the middle part of two transverse slats 11 respectively and form the support bracket 1 that cross section is I shape, two shielded conductors 2 insert and form rectangle cable core along the groove of support bracket 1 both sides, support bracket 1 upper cross plate 11 both sides are equipped with inside bending 15, for strengthening the intensity at transverse slat two ends, the medial surface of transverse slat 11 is provided with the anti-skid structure contacting with shielded conductor 2, anti-skid structure is the anti-slip veins 13 that is arranged on transverse slat medial surface, and anti-slip veins 13 cross sections are wavy.
It is coated that glass fiber tape lapping layer 3 is close to cable core, proof copper-wire braided screen 4, polyurethane insulating layer 5, steel-tape armouring layer 6 and fluororesin external sheath layer 7 outside being coated successively outside glass fiber tape lapping layer 3; Be circular layout in polyurethane insulating layer 5 hollow hoses 8 of a circle spaced set, is equipped with flexible supporting frames 9 in hollow hoses 8, the cross section of flexible supporting frames 9 is right-angled intersection form.The cross section of hollow hoses 8 is oval, and the major axis two ends of hollow hoses 8, respectively near outer proof copper-wire braided screen 4 and steel-tape armouring layer 6, can provide larger strain space like this in the time of extruding.
In specific embodiment, the fluororesin material that fluororesin external sheath layer 7 adopts, comprises following percentage by weight composition: tetrafluoro ethylene polymer: 40～60wt%, ZnOw: 20～30wt%, filler (not comprising perlite): 10～15wt%, perlite: 4～6wt%.Above-mentioned filler is one or more combination in carbon fiber, coke blacking, graphite powder, talcum powder, glass fibre, molybdenum bisuphide.During as cable jacket, in above-mentioned formula, can add oxidation stabilizers, heat-resisting stabilizing agent, weather-proof stabilizer, fire retardant.Fluororesin external sheath layer adopts tetrafluoro ethylene polymer as matrix resin, tetrafluoro ethylene polymer fusing point is 327 DEG C, be suitable as the good parts of mechanical strength and thermal endurance, can not only in hot environment, normally work, prevent the damage of mechanical external force, greatly improve the output of ampacity and the signal of cable; ZnOw has improved the dispersiveness of tetrafluoro ethylene polymer, and combines with other fillers, has improved the resistance to crowded friction and abrasion of fluororesin external sheath layer and compression resistant creep properties; Because fluororesin molecule adhesion is large, in known macromolecule key, C-F key is one of key the most firmly, can effectively anti-sealing, the intrusion of greasy dirt and moisture.
Common computer shielded type cable can not be at high temperature, in corrosive atmosphere, normally work, hold damage that can't stand mechanical external force, the ampacity of cable and the output of signal are weakened, the utility model above-mentioned high temperature that can be laid in, in corrosive atmosphere, because the utility model cable core is rectangle, lay simple, between cable, be difficult for being wound around, also ability extruding of cable, for can not the be laid in common computer shielded type cable of complex environment of excessive connection, mechanical strength is high, avoid cable gouge, the energising accident causing of damaging, greatly improve the output of ampacity and the signal of cable.
In the utility model, shielded conductor 2 is arranged in the groove in support bracket 1, and 1 coated insulation layer 14 on support bracket is avoided shielded conductor 2 electric leakages to cause that steel support bracket 1 is charged, thereby caused electric power accident; Shielded conductor 2 is provided with composite fire layer 22 and interior proof copper-wire braided screen 23, and composite fire layer 22 can bear high temperature, and interior proof copper-wire braided screen 23 ensures can not produce between shielded conductor interference; Outer proof copper-wire braided screen 4 outside cable core prevents the interference of outer signals to shielded conductor, polyurethane in polyurethane insulating layer 5 has resilience, shock absorption and high-temperature stability, and in polyurethane insulating layer 5, be provided with the hollow hoses 8 being circular layout, in hollow hoses 8, be provided with flexible supporting frames 9, shielded type cable can restore rapidly later in extruding, and steel-tape armouring layer 6 can avoid extraneous extruding force can be applied on outer proof copper-wire braided screen 4 and the outer proof copper-wire braided screen breakage causing; Fluororesin external sheath layer 7 can not only normally be worked in hot environment, prevents the damage of mechanical external force, has improved resistance to crowded friction and abrasion and compression resistant creep properties; Because fluororesin molecule adhesion is large, in known macromolecule key, C-F key is one of key the most firmly, can effectively anti-sealing, the intrusion of greasy dirt and moisture.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, within all should being encompassed in protection range of the present utility model.
Claims (7)
1. the high temperature resistant computer shielded cable of resistance to extruding, it is characterized in that, comprise support bracket (1), two shielded conductors (2), glass fiber tape lapping layer (3), outer proof copper-wire braided screen (4), polyurethane insulating layer (5), steel-tape armouring layer (6) and fluororesin external sheath layer (7), shielded conductor (2) comprises heart yearn (21) and is coated on successively the outer composite fire layer (22) of heart yearn (21), interior proof copper-wire braided screen (23) and polyvinyl chloride insulation layer (24) form, support bracket (1) comprises two transverse slats (11) and a riser (12), the two ends of riser (12) are connected with the middle part of two transverse slats (11) respectively and form the support bracket that cross section is I shape, two shielded conductors (2) insert and form rectangle cable core along the groove of support bracket (1) both sides, the medial surface of transverse slat (11) is provided with the anti-skid structure contacting with shielded conductor (2), it is coated that glass fiber tape lapping layer (3) is close to cable core, proof copper-wire braided screen (4), polyurethane insulating layer (5), steel-tape armouring layer (6) and fluororesin external sheath layer (7) outside being coated successively outside glass fiber tape lapping layer (3), be circular layout in polyurethane insulating layer (5) hollow hoses (8) of a circle spaced set, is equipped with flexible supporting frames (9) in hollow hoses (8).
2. the high temperature resistant computer shielded cable of resistance to extruding according to claim 1, is characterized in that, support bracket (1) adopts steel material to make, the upper coated insulation layer (14) of support bracket (1).
3. according to the high temperature resistant computer shielded cable of resistance to extruding described in claim 1-2, it is characterized in that, support bracket (1) upper cross plate (1) both sides are equipped with inside bending (15).
4. the high temperature resistant computer shielded cable of resistance to extruding according to claim 1, is characterized in that, anti-skid structure is for being arranged on the anti-slip veins (13) of transverse slat (11) medial surface, and anti-slip veins (13) cross section is wavy.
5. the high temperature resistant computer shielded cable of resistance to extruding according to claim 1, is characterized in that, the cross section of hollow hoses (8) is oval, and the major axis two ends of hollow hoses (8) are respectively near outer proof copper-wire braided screen (4) and steel-tape armouring layer (6).
6. the high temperature resistant computer shielded cable of resistance to extruding according to claim 1, is characterized in that, the cross section of flexible supporting frames (9) is right-angled intersection form.
7. the high temperature resistant computer shielded cable of resistance to extruding according to claim 1, is characterized in that, composite fire layer (22) is followed successively by fire-resistant isinglass belt, fire-resistant inorganic short fiber adhesive-layer and elastomer strap from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119981.7U CN203850009U (en) | 2014-03-14 | 2014-03-14 | A high temperature resistant extrusion resistant computer shield cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119981.7U CN203850009U (en) | 2014-03-14 | 2014-03-14 | A high temperature resistant extrusion resistant computer shield cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850009U true CN203850009U (en) | 2014-09-24 |
Family
ID=51562994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119981.7U Withdrawn - After Issue CN203850009U (en) | 2014-03-14 | 2014-03-14 | A high temperature resistant extrusion resistant computer shield cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850009U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943179A (en) * | 2014-03-14 | 2014-07-23 | 安徽万泰电缆有限公司 | Computer shield cable resistant to high temperature and extrusion |
| CN105590696A (en) * | 2014-12-10 | 2016-05-18 | 谢春梅 | High voltage power transmission power cable |
| CN109859895A (en) * | 2019-03-26 | 2019-06-07 | 北京市天华伟业线缆有限公司 | Convenient for exfoliated low-voltage crosslinked cable |
-
2014
- 2014-03-14 CN CN201420119981.7U patent/CN203850009U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943179A (en) * | 2014-03-14 | 2014-07-23 | 安徽万泰电缆有限公司 | Computer shield cable resistant to high temperature and extrusion |
| CN103943179B (en) * | 2014-03-14 | 2016-02-03 | 安徽万泰电缆有限公司 | A kind of high temperature resistant anti-extrusion computer shielded cable |
| CN105590696A (en) * | 2014-12-10 | 2016-05-18 | 谢春梅 | High voltage power transmission power cable |
| CN105609203A (en) * | 2014-12-10 | 2016-05-25 | 谢春梅 | High-voltage transmission power cable |
| CN109859895A (en) * | 2019-03-26 | 2019-06-07 | 北京市天华伟业线缆有限公司 | Convenient for exfoliated low-voltage crosslinked cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |