A radio frequency signal transmission cable for outer space and its manufacturing process
A radio frequency signal and transmission cable technology, applied in the direction of cable/conductor manufacturing, communication cable, cable insulation structure, etc., to achieve the effect of high mechanical strength, high reliability, and stable signal transmission
Active Publication Date: 2022-04-15
安徽瑞之星电子科技集团有限公司
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Problems solved by technology
Traditional cables made of fluoropolymer materials and manufacturing processes commonly used in aerospace are difficult to meet the requirements of environmental conditions. This requires breaking the traditional design and manufacturing process concepts of traditional aerospace cables, and developing new types of high-reliability cables that are suitable for harsh environments such as outer space. Cable products for RF signal transmission under conditions
Method used
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Embodiment Construction
[0024] Such as figure 1 As shown, a radio frequency signal transmission cable for outer space includes an inner conductor 1, and the outside of the inner conductor 1 is coated with a silicon dioxide foam insulating layer 2, a silver-plated copper tube outer conductor 3 and a titanium alloy Tube 4, the silicon dioxide foam insulation layer 2 is manufactured by injecting silicon dioxide and carbon dioxide into the inner side of the outer conductor of the silver-plated copper tube by using electromagnetic induction technology.
[0025] The inner conductor 1 adopts a single silver-plated copper alloy conductor or a single silver-plated copper conductor.
[0026] Such as image 3 , 4 As shown, a manufacturing process of a radio frequency signal transmission cable for outer space specifically includes the following steps:
[0027] (1) Pull the copper rod into a cylindrical inner conductor 1 of specified size, and then uniformly plate metal silver on the outside of the cylindrical...
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Abstract
The invention discloses a radio frequency signal transmission cable for outer space. The outside of the inner conductor is coated with a silicon dioxide foam insulating layer, a silver-plated copper tube outer conductor and a titanium alloy tube in sequence. The present invention adopts supercritical foaming molding technology, injects supercritical carbon dioxide into high-purity silica powder, mixes fully and evenly to form a single-phase mixed sol, puts it into a high-pressure sealed container, and then introduces the sol into the mold cavity , so that the sol produces a large pressure drop, so that the gas is precipitated to form a large number of bubble nuclei; during the subsequent cooling and forming process, the bubble nuclei inside the sol continue to grow and form, forming a silica foam insulation layer. The cable of the present invention is resistant to ultra-high and low temperature, and space particle radiation, and can work for a long time at a temperature of -273°C to 1000°C, and can guarantee a short-term work at a high temperature environment of 1200°C, and has the characteristics of corrosion resistance, high mechanical strength, high reliability, and signal Transmission is stable.
Description
technical field [0001] The invention relates to the field of cable technology, in particular to a radio frequency signal transmission cable for outer space and its manufacturing process, which is applied to the transmission of radio frequency signals under various ultra-high and low temperature, particle radiation and various strong corrosion environmental conditions and outer space conditions . Background technique [0002] With the continuous development of my country's aerospace technology, the level of informatization and integration of equipment needs to be improved day by day. The transmission of radio frequency signals has always required a method that is resistant to ultra-high and low temperature, space rays, particle radiation, and atomic oxygen. , A medium that can ensure stable signal transmission. [0003] Today's satellites, spaceships, international space stations, space probes, and large aircraft, etc., are increasingly intelligent and automated, resulting in...
Claims
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IPC IPC(8): H01B11/18H01B3/02H01B7/02H01B7/17H01B7/18H01B7/20H01B7/28H01B7/29H01B13/06
CPCH01B11/1808H01B11/1843H01B11/1869H01B7/02H01B7/28H01B7/2806H01B7/29H01B7/17H01B7/18H01B7/20H01B3/02H01B13/067
Inventor 后继好李小牛
Owner 安徽瑞之星电子科技集团有限公司