27-core ignition data cable
By employing a multi-layered structural design and the application of high-performance materials, the problems of cable transmission performance and structural integrity at high temperatures have been solved, enabling signal transmission and cable protection under instantaneous ultra-high temperature conditions, thus meeting the requirements of launch equipment such as rockets.
Patent Information
- Application Number
- CN202422738500.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing cables cannot effectively transmit electrical and data signals under high-temperature conditions, and are prone to melting and failure under instantaneous ultra-high temperatures, thus failing to meet the stringent requirements of launch equipment such as rockets.
The cable adopts a multi-layer structure design, including a first layer of cable core, wrapping layer, fireproof layer, fireproof and heat insulation layer, shielding layer and outer sheath. High-performance materials such as polyimide film, calcined mica tape, ceramicized polyolefin plastic and TPV flame-retardant elastomer are used to ensure that the cable maintains transmission performance and structural integrity at high temperatures.
It maintains the transmission of electrical and data signals at a high temperature of 1800℃, the shielding layer protects the internal structure under high temperature impact, and the outer sheath ensures the environmental performance of the cable under cold conditions. The cable is flexible and has excellent transmission performance.
Smart Images
Figure CN223612129U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of ignition data cable, belong to wire and cable field. BACKGROUND
[0002] Ignition equipment releases high heat in the moment of ignition, cable will be melted, further cause the failure of cable electric transmission and signal transmission.In recent years, with the requirement of rocket and other launch equipment more and more strict, require integrated cable also be used on ignition equipment, and can reach the use requirement under cold condition, while also in 1800 ℃ high temperature, can guarantee that electric signal and transmission signal can be effectively transmitted within 1min.
[0003] Since data cable is greatly influenced by environment, it is particularly important to ensure the transmission performance of cable, and there is certain requirement to the softness of cable.With the updating of equipment, the quantity and requirement of data cable are more detailed, and the requirement of heat conduction is more strict, not only limited to power transmission, but also to ensure the absolute integrity of cable core. SUMMARY
[0004] The utility model provides a kind of 27 core ignition data cable to solve above-mentioned technical problem.
[0005] To achieve this technical purpose, the utility model adopts the following scheme: a kind of 27 core ignition data cable, including first layer cable core, first layer cable core is covered with first wrapping layer, first wrapping layer is stranded with second layer cable core, second layer cable core is covered with second wrapping layer, the second wrapping layer is outwardly provided with fireproof layer, fireproof heat insulation layer, first composite fireproof layer, shielding layer, second composite fireproof layer and outer sheath in sequence.
[0006] Preferably, the first layer cable core includes four data cables, and the four data cables are stranded with each other.
[0007] Preferably, the second layer cable core includes nineteen insulated single wires and eleven fillers, and the second layer cable core is arranged in sequence with four insulated single wires, two fillers, four insulated single wires, two fillers, four insulated single wires, two fillers, three insulated single wires, three fillers, four insulated single wires and two fillers clockwise from any point A on the circumference of the second layer cable core as a starting point.
[0008] Preferably, the first wrapping layer and the second wrapping layer are polyimide film.
[0009] Preferably, the fireproof layer is calcined mica tape.
[0010] The first composite fireproof layer includes a layer of high-silicon glass cloth and a layer of calcined mica tape.
[0011] The second composite fireproof layer is the same as the first composite fireproof layer.
[0012] Preferably, the insulated single wire comprises a silver-plated copper wire conductor, and the silver-plated copper wire conductor is provided with a soluble polytetrafluoroethylene insulating layer.
[0013] Preferably, the fireproof and heat-insulating layer is a ceramicized polyolefin plastic.
[0014] Preferably, the shielding layer is woven by a tinned copper single wire.
[0015] Preferably, the outer sheath is a TPV flame-retardant elastomer sheath.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] 1. The fireproof layer and the fireproof and heat-insulating layer are arranged, so that the cable can keep transmitting the electric signal and the transmission signal for 1 min under the high temperature of 1800 DEG C, the fireproof and heat-insulating layer can perfectly block the fire source and heat in the outer layer, the absolute integrity of the cable core is guaranteed, and the performance of the first layer cable core and the second layer cable core is not affected; the shielding layer is arranged on the inner side of the second fireproof composite layer, the second fireproof composite layer is heated first when the shielding layer is subjected to heat shock, so that the shielding layer is protected from being damaged at the first time, the heat dissipation time of the shielding layer is increased, the shielding performance can be guaranteed in a short time, and the transmission performance of the cable is further guaranteed; and the outer sheath improves the environmental performance of the cable, and guarantees the storage and use of the cable under cold conditions.
[0018] 2. The first layer cable core is a data cable, the data cable is reasonably arranged in the innermost layer, and is stranded at a certain lay length, the first wrapping layer is wrapped on the data cable, and the data cable is further protected.
[0019] 3. The first wrapping layer and the second wrapping layer adopt polyimide films, the polyimide film is a film material with good performance at present, has high and low temperature resistance, electric insulation, and a short-time temperature resistance of 400 DEG C.
[0020] 4. The fireproof layer adopts calcined mica tape, the first composite fireproof layer and the second composite fireproof layer both adopt the form of one layer of high-silicon glass cloth plus one layer of calcined mica tape, the high-silicon glass cloth has excellent heat resistance, and a short-time temperature resistance of 1400 DEG C; the calcined mica tape has excellent high-temperature resistance and combustion resistance, and a short-time temperature resistance of 1000 DEG C; the composite wrapping form is adopted, so that the fireproof and heat-insulating performance is met, and the softness of the cable is guaranteed.
[0021] 5、The insulating single wire adopts silver-plated copper wire as conductor, has high conductivity, can reduce interference, ensures signal transmission of the cable, the conductor specification is 19 / 0.18mm, the conductor has good roundness and relative softness, and is easy to weld; the insulating layer of the insulating single wire adopts soluble polytetrafluoroethylene plastic, has excellent dielectric strength, good electrical insulation, and high temperature resistance grade, and thin layer extrusion is adopted to improve the softness of the cable core.
[0022] 6、The fireproof and heat insulation layer adopts extruded ceramicized polyolefin plastic, the material has excellent mechanical environmental performance and excellent heat insulation performance; under the condition of flame burning or high temperature, the hard ceramic shell can be generated, the hard shell is not molten and does not drip, can resist water spray and mechanical vibration, and has very good heat insulation and fire insulation effect.
[0023] 7、The shielding layer adopts tinned copper single wire braiding, the material is easy to weld and has high conductivity, and can reduce external interference.
[0024] 8、The outer sheath is made of TPV flame-retardant elastomer plastic, has good mechanical environmental performance, can reach the use requirement of-50 DEG C at low temperature, and has excellent flame-retardant performance.
[0025] 9、The cable has good insulation performance, high voltage resistance, softness, and the minimum bending radius is 7 times the outer diameter of the cable, and the transmission performance of the cable can be ensured at 1800 DEG C of instantaneous super high temperature; the ceramicized material is introduced into the ignition cable for the first time, not only can protect the cable during normal storage, but also can ensure that the cable is heated to form a shell, so that the cable has excellent temperature resistance and heat insulation performance under the condition of instantaneous super high temperature, is soft, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 a schematic view of a 27-core ignition data cable provided by the embodiment of the utility model;
[0027] Figure 2 a schematic view of an insulating single wire provided by the embodiment of the utility model;
[0028] Marking in the drawing:
[0029] 1, insulating single wire; 1-1, silver-plated copper wire conductor; 1-2, soluble polytetrafluoroethylene insulating layer; 2, filling core; 3, data cable; 4, first wrapping layer; 5, fireproof layer; 6, fireproof and heat insulation layer; 7, first composite fireproof layer; 8, shielding layer; 9, second composite fireproof layer; 10, outer sheath; 11, first layer cable core; 12, second layer cable core; 13, second wrapping layer. DETAILED DESCRIPTION
[0030] For the purpose, features and effects of the utility model, the utility model is described in detail by the following specific embodiments, but the utility model is not limited to this.
[0031] As Figure 1 , Figure 2 The utility model provides a kind of 27 core ignition data cable, including first layer cable core 11, second layer cable core 12 etc., first layer cable core 11 includes four data cables 3, four data cables 3 are stranded with certain lay, and data cable 3 is used as signal line to transfer signal, and each data cable 3 includes two core wires, and data cable 3 can be LVDS data line, first layer cable core 11 is covered with first wrapping layer 4 outside, and first wrapping layer 4 is made of polyimide film, and first wrapping layer 4 can protect first layer cable core 11.
[0032] Second layer cable core 12 is outside first wrapping layer 4, and second layer cable core 12 includes nineteen insulated single wires 1 and eleven filling cores 2, and insulated single wire 1 is used as power line, as shown in Figure 1 , the arrangement mode of insulated single wire 1 and filling core 2 is, with A point in Figure 1 As starting point, four insulated single wires 1, two filling cores 2, four insulated single wires 1, two filling cores, four insulated single wires 1, two filling cores 2, three insulated single wires 1, three filling cores 2, four insulated single wires 1 and two filling cores 2 are sequentially arranged in clockwise direction.
[0033] Please refer to Figure 2 , insulated single wire 1 includes silver-plated copper wire conductor 1-1, and silver-plated copper wire conductor 1-1 is covered with soluble polytetrafluoroethylene insulating layer 1-2 outside.
[0034] Second layer cable core 12 is covered with a layer of second wrapping layer 13 outside, and second wrapping layer 13 is also composed of polyimide film layer, and fireproof layer 5 is wrapped outside second wrapping layer 13, and fireproof layer 5 is calcined mica tape, and fireproof layer 5 can prevent external high temperature from being conducted to first layer cable core 11 and second layer cable core 12.
[0035] Fireproof layer 5 is extruded with fireproof heat insulation layer 6 outside, and fireproof heat insulation layer 6 is ceramicized polyolefin plastic.
[0036] First composite fireproof layer 7 is wrapped outside fireproof heat insulation layer 6, and first composite fireproof layer 7 includes a layer of high-silicon glass cloth and a layer of calcined mica tape.
[0037] Shielding layer 8 is covered with first composite fireproof layer 7 outside, and shielding layer 8 is made of tinned copper single wire.
[0038] Second composite fireproof layer 9 is wrapped outside shielding layer 8, and second composite fireproof layer 9 includes a layer of high-silicon glass cloth and a layer of calcined mica tape.
[0039] The second composite fireproof layer 9 is extruded with an outer sheath 10, and the outer sheath 10 is a TPV flame-retardant elastic protective sheath.
[0040] Finally, it should be noted that the above are only preferred embodiments of the present application, of course, those skilled in the art can make changes and modifications to the present application, provided that these modifications and changes are within the scope of the present application claims and equivalent technology, should be considered as the protection scope of the present application.
Claims
1. A 27-core ignition data cable characterized by, The cable comprises a first layer cable core (11), the first layer cable core (11) is covered with a first wrapping layer (4), the second layer cable core (12) is twisted outside the first wrapping layer (4), the second layer cable core (12) is covered with a second wrapping layer (13), and the second wrapping layer (13) is sequentially provided outward with a fireproof layer (5), a fireproof and heat insulation layer (6), a first composite fireproof layer (7), a shielding layer (8), a second composite fireproof layer (9) and an outer sheath (10).
2. A 27-core ignition data cable according to claim 1, characterized in that, The first layer cable core (11) comprises four data cables (3), and the four data cables (3) are twisted with each other.
3. A 27-core ignition data cable according to claim 1, wherein, The second layer cable core (12) comprises nineteen insulated single wires (1) and eleven fillers (2), and any point A on the circumference of the second layer cable core (12) is taken as a starting point, and four insulated single wires (1), two fillers (2), four insulated single wires (1), two fillers (2), four insulated single wires (1), two fillers (2), three insulated single wires (1), three fillers (2), four insulated single wires (1) and two fillers (2) are sequentially arranged in the clockwise direction.
4. A 27-core ignition data cable according to claim 1, wherein, The first wrapping layer (4) and the second wrapping layer (13) are both polyimide films.
5. A 27-core ignition data cable according to claim 1, wherein, The fireproof layer (5) is a calcined mica tape; The first composite fireproof layer (7) comprises a layer of high-silicon glass cloth and a layer of calcined mica tape; The second composite fireproof layer (9) is the same as the first composite fireproof layer (7).
6. A 27-core ignition data cable according to claim 3, wherein, The insulated single wire (1) comprises a silver-plated copper wire conductor (1-1), and the silver-plated copper wire conductor (1-1) is provided with a soluble polytetrafluoroethylene insulation layer (1-2) outward.
7. A 27-core ignition data cable according to claim 1, wherein, The fireproof and heat insulation layer (6) is a ceramicized polyolefin plastic.
8. A 27-core ignition data cable according to claim 1, wherein, The shielding layer (8) is woven by a tinned copper single wire.
9. A 27-core ignition data cable according to claim 1, wherein, The outer sheath (10) is a TPV flame-retardant elastomer sheath.