High-definition multi-media connecting line and manufacture method thereof
A technology of high-definition multimedia and connecting wires, which is applied in the direction of cable/conductor manufacturing, electrical components, cables with twisted strands/quad strands, etc., which can solve the problem that the aluminum foil 13 of the wings is easy to loosen and cannot reach each other. Problems such as isolation and ground wire protruding
Inactive Publication Date: 2010-05-05
珠海中广视讯科技有限公司
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Problems solved by technology
Since the shielding layers of the four pairs of signal wires 11 and ground wires 12 are wrapped on each pair of signal wires 11 and ground wires 12 by means of circular winding with about 8 mm spread aluminum foil 13, during the general twisting process or on-line If there is any bending during the use of the material, the spread aluminum foil 13 covered by the four pairs of signal wires 11 is easy to loosen, and the ground wire 12 is easy to protrude
This will cause two undesirable consequences: A. Since the transmission signal in the wire may leak due to the loose aluminum foil, the signal attenuation increases
B. If two adjacent ground wires 12 protrude, a short circuit will occur, so that the effect of mutual isolation of each pair cannot be achieved
Method used
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[0031] see figure 2 , a high-definition multimedia connection line, including two signal lines 11 and a ground wire 12 wrapped by a winged aluminum foil 13 to form a coil 1 , and a layer of heat-sealing film 14 is also wrapped on the outer layer of the spreaded aluminum foil 13 . The high-definition multimedia connection line includes four such coils 1, and also includes seven PE wires 2 and one ground wire 3, and two of the seven PE core wires can be twisted together. The outer layers of the four round coils 1, seven PE wires 2 and one ground wire 3 are first covered with a layer of PET film, and then made of aluminum-magnesium alloy braided wires to form a braided layer 4, the braided layer 4 The outer layer adds sheath 5 again.
[0032] The specific production process of the high-definition multimedia cable is as follows:
[0033] a. Production of foaming wire: The bare copper wire of the inner conductor is extruded on a layer of foaming PE material through a 50-type ext...
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The invention relates to a multi-media connecting line and a manufacture method thereof. The high-definition multi-media connecting line comprises four coils, seven PE core lines and a sheath, wherein each coil comprises two signal lines, a ground line and a spread aluminum foil coated at an outer layer; the sheath coats the four coils and the seven PE core lines; the outer layer of the spread aluminum foil of each coil is coated with a lay of heat seal film. Since the spread aluminum foils outside each pair of signal lines are coated with a layer of heat seal film and the heat seal film has certain stickiness after being heated, the spread aluminum foils can be coated on the signal lines and the ground line tightly, and aluminum foil loosening or ground line breakage phenomenon can not happen in the following procedure or use of finished products.
Description
technical field [0001] The invention relates to a multimedia connection line and a manufacturing method of the multimedia connection line. Background technique [0002] High-definition multimedia cable (HDMI cable) is mainly used to transmit high-definition digital signals between DVD, PS3, high-definition digital TV set-top boxes and high-definition digital TVs or display devices. HDMI cables can transmit audio and video signals at the same time. The HDMI cable transmits a large amount of traffic, and all information is transmitted in the form of digital signals. In this way, the signal will not be distorted during transmission. Since the HDMI cable can integrate audio and video signal transmission, and is small in size, light in weight and beautiful in appearance, it will gradually replace the existing audio and video signal and VGA cable and be widely used. For the structure of the HDMI cable, see figure 1 , two signal wires 11 and one ground wire 12 are wrapped into ...
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IPC IPC(8): H01B11/06H01B13/00H01B13/26
Inventor 刘登山
Owner 珠海中广视讯科技有限公司