CN218069444U - Aerospace is with six types of cables of flat high low temperature resistant high speed data signal transmission - Google Patents
Aerospace is with six types of cables of flat high low temperature resistant high speed data signal transmission Download PDFInfo
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- CN218069444U CN218069444U CN202220175914.1U CN202220175914U CN218069444U CN 218069444 U CN218069444 U CN 218069444U CN 202220175914 U CN202220175914 U CN 202220175914U CN 218069444 U CN218069444 U CN 218069444U
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Abstract
The utility model provides a six types of cables of high-speed data signal transmission of flat resistant high low temperature for aerospace, include: an outer jacket; the shielding layer, the shielding layer set up in the inside of outer jacket. The utility model provides a six types of cables of high-speed data signal transmission of flat resistant high low temperature for aerospace, the component part all uses resistant high low temperature, high elasticity's material, it adopts relative dielectric constant to insulate, dielectric loss angle tangent value is low, the high micropore polytetrafluoroethylene raw material area insulating material of transmission rate, signal transmission rate has been guaranteed, no assembly cable, the shielding adopts around package + weaving compound shielding mode, anti-electromagnetic interference ability is strong, crosstalk interference has been reduced, the highest frequency of use 250MHz, use temperature-65- +250 ℃, the product external diameter is little, light in weight, resistant high low temperature, it is fire-retardant, it is anticorrosive, characteristics such as mechanical properties is good, be applicable to signal transmission such as communication integrated wiring system field pronunciation under the special environment, digit, characters, image and video.
Description
Technical Field
The utility model relates to a cable field especially relates to an aerospace is with six types of cables of high-speed data signal transmission of flat resistant high low temperature.
Background
A cable is a conductor made of one or more conductors insulated from each other and an outer insulating sheath that carries power or information from one location to another.
At present, the domestic aviation field is developed better and better, the demand for cables inside airplanes is increased gradually, and the quality requirement for the cables is also high.
The product structure of the six types of cables on the market at present mainly comprises 2 pairs of twisted groups and 4 pairs of twisted groups, a bare copper conductor, polyethylene insulation and a polyvinyl chloride sheath, the use temperature is-20 to +70 ℃, particularly, a cross-shaped framework is additionally arranged at the center of the 4 pairs of twisted groups, the product is hard in texture, large in bending radius and large in structural size, and the six types of cables for high-low-temperature and high-speed data signal transmission for aerospace need to resist high temperature to 250 ℃, are small in structural size, light in weight, good in flexibility and small in bending radius, so that the product is difficult to meet the future use requirements.
Therefore, there is a need to provide a flat high-temperature and low-temperature resistant high-speed data signal transmission six-type cable for aerospace use to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a six types of cables of high-speed data signal transmission of resistant high low temperature of flat for aerospace, solved among the prior art conventional structural material and leaded to the product texture of cable hard, bend radius is big, the big problem of structure size.
In order to solve the technical problem, the utility model provides an aerospace is with six types of cables of flat high low temperature high speed data signal transmission that are able to bear or endure, include:
an outer jacket;
the shielding layer is arranged inside the outer protective layer;
the shielding pair-twisting group is arranged inside the shielding layer and comprises a wrapping layer, two insulating layers are arranged inside the wrapping layer, and conductors are arranged between the two insulating layers;
the shielding pair-twisted group is not provided with an assembly cable, namely two or four shielding pair-twisted groups are directly woven side by side, and the insulating layer is made of low-density raw material belts.
Preferably, the wrapping layer is made of a polyimide aluminum plastic composite tape.
Preferably, the insulating layer is formed by winding a low-density raw material belt.
Preferably, the conductor is formed by twisting a silver-plated copper alloy.
Preferably, the outer protective layer is made of a fluoroplastic material.
Preferably, the shielding layer is formed by weaving silver-plated copper wires.
Preferably, the upper side and the lower side of the inner surface of the shielding layer are fixedly connected with a folding frame between the two shielding pair-twisting groups, and the bottom of the inner surface of the folding frame is provided with a clamping groove.
Preferably, the shielding layer is provided with two connecting pieces between the shielding pair twist sets, the left and right sides of each connecting piece are fixedly connected with arc-shaped pieces, the upper and lower ends of each connecting piece are fixedly connected with connecting plates, the left and right sides of the bottom of each connecting plate are fixedly connected with clamping blocks, and one ends of the clamping blocks extend into the clamping grooves.
Through set up a type frame, connecting piece etc. in the shielding layer, can separate two sets of or four groups of shielding pair twist groups, avoid the shielding layer to warp, lead to multiunit shielding pair twist group dislocation, also can avoid high frequency signal to influence each other between the cable simultaneously.
Compared with the prior art, the utility model provides an aerospace is with six types of cables of flat high low temperature resistant high-speed data signal transmission have following beneficial effect:
the utility model provides a six types of cables of high-speed data signal transmission of resistant high low temperature of flat for aerospace, the conductor adopts silver-plated copper alloy stranded conductor, this material conductivity is more than 86% pure copper, according to the electromagnetic transmission theory, signal transmission is influenced by skin effect, the frequency is higher, the more approaching to conductor surface transmission, under this condition, the conductor surface silvering has certain advantage to improving transmission performance, tensile strength is about 2 times of pure copper, not only satisfy transmission performance under the higher condition of frequency, but also can ensure that aerospace craft has higher tensile strength and does not break under the high gravity acceleration condition, insulating layer cladding conductor, play the insulating effect, prevent the electric current between the conductor from crossing each other, simultaneously convenient transmission signal, adopt cladding polyimide aluminium plastic composite tape way around the covering, no assembly cable, shielding layer adopts the shielding mode that monofilament high density weaves, the cable has the advantages that the electromagnetic interference resistance is strong, the crosstalk interference shielding layer is reduced, the anti-interference capability of the cable is improved, the outer protective layer improves the high-temperature resistance and the abrasion resistance of the cable, the cable components are made of high-low temperature resistant and high-elasticity materials, the insulation is made of microporous polytetrafluoroethylene raw material belt insulation materials with low relative dielectric constant, low dielectric loss tangent value and high transmission rate, the signal transmission rate is guaranteed, the total cable is avoided, the shielding is made of a wrapping and weaving composite shielding mode, the electromagnetic interference resistance is strong, the crosstalk interference is reduced, the highest use frequency is 250MHz, the use temperature is-65 ℃ to +250 ℃, the outer diameter of a product is small, the weight is light, the high-low temperature resistance, the flame retardance, the corrosion resistance, the mechanical performance is good, and the like, and the cable is suitable for signal transmission in the field of communication comprehensive wiring systems under special environments, such as voice, numbers, characters, images and videos.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a flat high-low temperature-resistant high-speed data signal transmission six-type cable for aerospace according to the present invention;
FIG. 2 is a schematic diagram of the four shielding twisted pairs shown in FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the flat high-low temperature-resistant high-speed data signal transmission six-type cable for aerospace provided by the present invention;
fig. 4 is an enlarged view of the portion a shown in fig. 3.
Reference numbers in the figures: 1. an outer protective layer, 2, a shielding layer,
3. a shielding twisted pair group 31, a wrapping layer 32, an insulating layer 33 and a conductor,
4. the bending type frame comprises a bending type frame body 5, clamping grooves 6, connecting pieces 7, arc-shaped pieces 8, connecting plates 9 and clamping blocks.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
First embodiment
Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of a flat high-low temperature-resistant high-speed data signal transmission six-type cable for aerospace according to the present invention; fig. 2 is a schematic structural diagram of the four shielding twisted pairs shown in fig. 1. Six types of cables of resistant high low temperature high speed data signal transmission of flat for aerospace include:
an outer jacket layer 1;
the shielding layer 2 is arranged inside the outer protection layer 1;
the shielding twisted pair group 3 is arranged inside the shielding layer 2, the shielding twisted pair group 3 comprises a wrapping layer 31, two insulating layers 32 are arranged inside the wrapping layer 31, and a conductor 33 is arranged in the middle of each of the two insulating layers 32;
the shielding twisted pair group 3 has no assembly cable, that is, two or four shielding twisted pair groups 3 are directly woven side by side, and the insulating layer 32 is made of a low-density raw material tape.
The insulating layer 32 covers the conductor 33 to form an insulated wire, and the wrapping layer 31 covers the insulated wire to form a shielding twisted pair group 3; the insulating layer 32 covers the conductors 33, so that an insulating effect is achieved, current cross connection between the conductors 33 is prevented, and signals are conveniently transmitted; the wrapping layer 31 adopts a mode of wrapping a polyimide aluminum-plastic composite tape, the shielding layer 2 adopts a shielding mode of weaving single filaments in high density, the anti-electromagnetic interference capability is strong, the crosstalk interference shielding layer is reduced, the anti-interference capability of the cable is improved, the outer protective layer 1 is improved, the high temperature resistance and the wear resistance of the cable are improved, and the like; the cable components all use high and low temperature resistant and high elastic materials, the insulating layer 32 uses microporous polytetrafluoroethylene raw material belt insulating materials with relative dielectric constant, low dielectric loss tangent value and high transmission rate, the signal transmission rate is ensured, the shielding layer 2 adopts a wrapping and weaving composite shielding mode, the electromagnetic interference resistance is strong, the crosstalk interference is reduced, the highest using frequency is 250MHz, the using temperature is-65 to +250 ℃, the product outer diameter is small, the weight is light, the high and low temperature resistant, flame retardant, corrosion resistance, good mechanical property and the like are realized, and the cable is suitable for signal transmission of voice, digit, characters, images, videos and the like in the field of communication comprehensive wiring systems in special environments.
The wrapping layer 31 is made of polyimide aluminum plastic composite tape.
The wrapping layer 31 is made of a polyimide aluminum plastic composite tape; the polyimide aluminum-plastic composite tape has high temperature resistance of 400 ℃, excellent heat insulation performance, can effectively protect the inner conductor 33 and the insulating layer 32, maintain the conductivity of the conductor at high temperature, ensure the transmission rate of insulation, reduce the crosstalk between wire pairs and prevent the core wire from being affected with damp.
The insulating layer 32 is formed by winding a low-density raw material tape.
The insulating layer 32 is formed by winding a low-density raw material belt, the relative dielectric constant of the material can be reduced by the micropore structure, the dielectric loss angle tangent value is low, the signal transmission rate is guaranteed, the temperature resistance can reach 400 ℃ and above, the temperature resistance of the cable is improved, the cable is soft and easy to bend due to the soft material, and the stability of the transmission performance of the cable is guaranteed.
The conductor 33 is formed by twisting a silver-plated copper alloy.
The conductor 11 is formed by twisting silver-plated copper alloy, the silver-plated copper alloy material conforms to the GJB1640-1993 specification, the resistance can be reduced, a bare copper layer is prevented from being oxidized to reduce the electrical property, the oxidation resistance and the weldability are improved, the cable has very good electric energy transmission characteristics, the tensile strength is about 2 times of that of pure copper, the transmission performance under the condition of high frequency is met, and the aerospace craft can be ensured to have high tensile strength without breaking under the high gravity acceleration condition.
The outer protective layer 1 is made of fluoroplastic materials.
The outer protective layer 1 is made of a fluoroplastic material, and the fluoroplastic has excellent electrical insulation performance, a wide temperature range, excellent moisture resistance, oil resistance, solubility resistance and wear resistance, an extremely low friction coefficient and good adhesion with metal, and is widely applied to the fields of aerospace, national defense and the like.
The shielding layer 2 is formed by weaving silver-plated copper wires.
The shielding layer 2 is woven by silver-plated copper wires, the silver-plated copper wires have excellent oxidation resistance, the weaving density reaches more than 80%, and the shielding mode of high-density single-wire weaving can resist electromagnetic induction, reduce inductance, reduce crosstalk interference and increase the anti-interference capability of the cable; the shielding layer 2 of the silver-plated copper wire not only plays a role in inhibiting electromagnetic wave emission, but also can be used as a channel for current leakage and can play a role in protecting a neutral wire core.
The utility model provides a six types of cables of flat resistant high low temperature high speed data signal transmission's for aerospace theory of operation as follows:
the conductor 33 is made of silver-plated copper alloy stranded wires, the conductivity of the material is more than 86% of that of pure copper, according to the electromagnetic transmission theory, signal transmission is influenced by a skin effect, the higher the frequency is, the closer the frequency is to the surface of the conductor, in this case, silver plating on the surface of the conductor has certain advantages for improving the transmission performance, the tensile strength is about 2 times of that of the pure copper, the transmission performance under the condition of higher frequency is met, and the high tensile strength without fracture can be ensured under the high gravity acceleration condition of the aerospace vehicle.
The insulating layer 32 covers the conductor 33 to form an insulated wire, and the wrapping layer 31 covers the insulated wire to form a shielding twisted pair group; the insulating layer 32 covers the conductors 33, so that an insulating effect is achieved, current between the conductors 33 is prevented from being connected in series, and signals are conveniently transmitted; the wrapping layer 31 adopts a mode of cladding a polyimide aluminum plastic composite tape without an assembly cable.
The shielding layer 2 adopts a shielding mode of high-density weaving of monofilaments, so that the anti-electromagnetic interference capability is strong, the crosstalk interference shielding layer is reduced, the anti-interference capability of the cable is improved, and the high-temperature resistance and the wear resistance of the cable are improved by the outer protective layer; the cable components all use high and low temperature resistant and high elastic materials, the insulation adopts a micropore polytetrafluoroethylene raw material belt insulation material with relative dielectric constant, low dielectric loss tangent value and high transmission rate, the signal transmission rate is ensured, no cable is formed, the shielding adopts a wrapping and weaving composite shielding mode, the electromagnetic interference resistance is strong, the crosstalk interference is reduced, the maximum use frequency is 250MHz, the use temperature is-65 to +250 ℃, the product outer diameter is small, the weight is light, the high and low temperature resistant performance is high and low, the flame retardant performance is anti-corrosion, the mechanical property is good, and the like, and the cable is suitable for signal transmission in the field of communication comprehensive wiring systems in special environments, such as voice, numbers, characters, images, videos and the like.
Compared with the prior art, the utility model provides an aerospace is with six types of cables of flat high low temperature resistant high-speed data signal transmission have following beneficial effect:
the six types of flat high-low temperature-resistant high-speed data signal transmission cables for aerospace use all use high-low temperature-resistant and high-elasticity materials, the insulation adopts a microporous polytetrafluoroethylene raw material belt insulation material with low relative dielectric constant, low dielectric loss tangent value and high transmission rate, the signal transmission rate is ensured, no cable assembly is realized, the shielding adopts a wrapping and weaving composite shielding mode, the electromagnetic interference resistance is strong, the crosstalk interference is reduced, the highest use frequency is 250MHz, the use temperature is-65 ℃ to +250 ℃, the outer diameter of a product is small, the weight is light, the high-low temperature resistance is high, the flame retardance is high in corrosion resistance, the mechanical property is good, and the like, so that the cable is suitable for signal transmission of voice, numbers, characters, images, videos and the like in the field of communication comprehensive wiring systems in the aerospace environment of an airborne or transport station.
Second embodiment
Referring to fig. 3 and fig. 4 in combination, based on the six types of aerospace flat high-temperature and high-speed data signal transmission cables provided in the first embodiment of the present application, another type of aerospace flat high-temperature and high-speed data signal transmission cables is provided in the second embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the difference that the aerospace is with six types of cables of flat resistant high low temperature high speed data signal transmission that this application's second embodiment provided lies in, the upper and lower both sides of 2 internal surfaces of shielding layer just are located two fixedly connected with between the shielding pair twist group 3 rolls over type frame 4, draw-in groove 5 has been seted up to the bottom of 4 internal surfaces of rolling over type frame.
The folding frame 4 is fixed in the middle of the shielding layer 2 and is connected with the connecting piece 6, and the folding frame 4 has certain deformation capacity.
The shielding layer 2 is internally provided with two connecting pieces 6 arranged between the shielding pair-twisting groups 3, the left side and the right side of each connecting piece 6 are fixedly connected with arc-shaped pieces 7, the upper end and the lower end of each connecting piece 6 are fixedly connected with connecting plates 8, the left side and the right side of the bottom of each connecting plate 8 are fixedly connected with clamping blocks 9, and one ends of the clamping blocks 9 extend to the insides of the clamping grooves 5.
The middle of the folding frame 4 is inserted at the upper end and the lower end of the connecting piece 6, a foaming structure is adopted, the electric conductivity is realized, the arc-shaped piece 7 is in contact with the shielding pair-twisted set 3, the two shielding pair-twisted sets 3 are separated, the mutual influence of high-frequency signals is avoided, and the connecting plate 8 also has certain deformation capacity.
The utility model provides a six types of cables of high-speed data signal transmission of flat resistant high low temperature for aerospace's theory of operation as follows:
connecting piece 6 is in the middle of the type frame 4 of rolling over of upper and lower both sides through two connecting plates 8 card, and connecting plate 8 carries out certain bending deformation simultaneously, and fixture block 9 alright card is in draw-in groove 5.
And the arc 7 of both sides then carries out certain spacing to the shielding pair twist group 3 of both sides, avoids a plurality of shielding pair twist groups 3 at shielding layer 2 and the inside dislocation of outer jacket 1, influences the use.
Compared with the prior art, the utility model provides an aerospace is with six types of cables of flat high low temperature resistant high-speed data signal transmission have following beneficial effect:
through set up folding type frame 4, connecting piece 6 etc. in shielding layer 2, can separate two sets of or four shielding pair twist group 3, avoid shielding layer 2 to warp, lead to the dislocation of multiunit shielding pair twist group 3, also can avoid high frequency signal to influence each other between the cable simultaneously.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a six types of cables of resistant high low temperature high speed data signal transmission of flat for aerospace which characterized in that includes:
an outer jacket;
the shielding layer is arranged inside the outer protection layer;
the shielding twisted pair group is arranged inside the shielding layer and comprises a wrapping layer, two insulating layers are arranged inside the wrapping layer, and a conductor is arranged between the two insulating layers;
the shielding pair-twisted sets are free of assembly cables, namely two or four shielding pair-twisted sets are directly woven side by side, and the insulating layer is made of low-density raw material belts.
2. The aerospace flat high temperature and low temperature resistant high speed data signal transmission six-type cable according to claim 1, wherein the wrapping layer is made of polyimide aluminum plastic composite tape.
3. The six-type cable for aerospace flat high-temperature-resistant, low-temperature-resistant and high-speed data signal transmission according to claim 1, wherein the insulating layer is formed by winding low-density raw material tapes.
4. The six-type aerospace flat high temperature and low temperature resistant high speed data signal transmission cable according to claim 1, wherein the conductors are stranded of silver-plated copper alloy.
5. The aerospace flat high temperature and high temperature resistant high speed data signal transmission six-type cable according to claim 1, wherein the outer sheath is made of a fluoroplastic material.
6. The six-type aerospace flat high-temperature-resistant and high-speed data signal transmission cable according to claim 1, wherein the shielding layer is woven of silver-plated copper wires.
7. The aerospace flat high-temperature-resistant high-speed data signal transmission six-type cable according to claim 1, wherein folded frames are fixedly connected to the upper side and the lower side of the inner surface of the shielding layer and located between the two shielding twisted pairs, and clamping grooves are formed in the bottoms of the inner surfaces of the folded frames.
8. The six-type cable for aerospace flat high-temperature-resistant high-speed data signal transmission according to claim 7, wherein a connecting piece is arranged inside the shielding layer and between the two shielding twisted pairs, the left side and the right side of the connecting piece are both fixedly connected with arc-shaped pieces, the upper end and the lower end of the connecting piece are both fixedly connected with a connecting plate, the left side and the right side of the bottom of the connecting plate are both fixedly connected with clamping blocks, and one end of each clamping block extends to the inside of the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220175914.1U CN218069444U (en) | 2022-01-21 | 2022-01-21 | Aerospace is with six types of cables of flat high low temperature resistant high speed data signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220175914.1U CN218069444U (en) | 2022-01-21 | 2022-01-21 | Aerospace is with six types of cables of flat high low temperature resistant high speed data signal transmission |
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| Publication Number | Publication Date |
|---|---|
| CN218069444U true CN218069444U (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220175914.1U Active CN218069444U (en) | 2022-01-21 | 2022-01-21 | Aerospace is with six types of cables of flat high low temperature resistant high speed data signal transmission |
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| CN (1) | CN218069444U (en) |
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