CN201233756Y - Signal transmission line unit - Google Patents
Signal transmission line unit Download PDFInfo
- Publication number
- CN201233756Y CN201233756Y CNU2008200514077U CN200820051407U CN201233756Y CN 201233756 Y CN201233756 Y CN 201233756Y CN U2008200514077 U CNU2008200514077 U CN U2008200514077U CN 200820051407 U CN200820051407 U CN 200820051407U CN 201233756 Y CN201233756 Y CN 201233756Y
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- CN
- China
- Prior art keywords
- aluminium foil
- foil wheat
- draws
- layer
- transmssion line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a signal transmission line unit, which belongs to the technical field of signal transmission lines. The signal transmission line unit comprises a pair of core wires, a ground wire and two layers of aluminum foil Mylar, wherein the periphery of the pair of the core wires is clad with the two layers of the aluminum foil Mylar along the direction of lengths of the core wires; a conducting surface is arranged on one side of the aluminum foil Mylar, and an insulating surface is arranged on the other side of the aluminum foil Mylar; the ground wire penetrates the space between the layers of the aluminum foil Mylar; both the conducting surfaces of the two layers of the aluminum foil Mylar face to the ground wire, and are respectively in electric contact with the ground wire; therefore, the capacitance of the signal transmission line unit is reduced, the inductance of the signal transmission line unit is enhanced, the high impedance is formed, and the signal transmission line unit has good high-frequency performance.
Description
Technical field:
The utility model relates to the signal transmssion line technical field, refers in particular to a kind of signal transmssion line unit.
Background technology:
HDMI is novel multi-media digital interface, and it can provide the transmission rate up to 10Gbps, the high-quality video-audio signal that can transmit uncompressed and need not change.The benefit of using HDMI is: only need a HDMI holding wire, just can transmit video-audio signal simultaneously, simplified the installation of household audio and video system greatly.
Usually the HDMI holding wire comprises many to signal transmssion line, shown in Figure 1, a pair of signal transmssion line by a pair of pair twist heart yearn 1, ground wire 2 and at least one deck coating layer 3 form, heart yearn is made up of conductor 1a and foaming insulation layer 1b, when being squeezed, foaming insulation layer 1b can be out of shape, foaming insulation layer 1b is heated in welding process and also can be out of shape, and influences the high frequency performance of HDMI holding wire.At present, decay can appear in the long rice number HDMI holding wire more than 5 meters in high-frequency test, postpone bad phenomenon such as difference, and the major influence factors that this badness occurs be cored wire conductor size, core insulation, heart yearn the coating mode with and arrangement mode.Because the size of the conductor 1a of heart yearn 1 can not arbitrarily be changed, so can only reduce each electric capacity by foaming insulation layer 1b, coating mode and the arrangement mode of change heart yearn 1, increase its inductance to signal transmssion line, form high impedance, and then make signal transmssion line have good high frequency performance.
The utility model content:
The purpose of this utility model is to provide a kind of signal transmssion line unit at the deficiencies in the prior art, it reduces the electric capacity of signal transmssion line unit, increase the inductance of signal transmssion line unit, form high impedance, and then make the signal transmssion line unit have good high frequency performance.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of signal transmssion line unit, it comprises that a pair of heart yearn, a ground wire and two-layer aluminium foil wheat draw, the periphery of heart yearn coats two-layer aluminium foil wheat along the length direction of heart yearn and draws, the aluminium foil wheat draws one side to be conducting surface, the another side that the aluminium foil wheat is drawn is an insulating surfaces, ground wire is located between two-layer aluminium foil wheat draws, and the conducting surface that two-layer aluminium foil wheat is drawn is all towards ground wire, and the conducting surface that two-layer aluminium foil wheat is drawn electrically contacts with ground wire respectively.
Described two heart yearns are arranged in parallel, and the periphery of two heart yearns vertically is coated with the fixed band that one deck is made through foaming by polypropylene, fixed band the aluminium foil wheat of internal layer draw and heart yearn between.
It is the periphery that is wrapped in fixed band respectively along the length direction of heart yearn that described two-layer aluminium foil wheat is drawn, and the winding direction that two-layer aluminium foil wheat is drawn is opposite.
Described heart yearn is made up of conductor and the insulating barrier of being made by the high density poly propylene material that is coated on the conductor periphery.
The conducting surface that described aluminium foil wheat is drawn is the surface that aluminum is made.
Describedly be positioned at periphery that outer field aluminium foil wheat draws and vertically be coated with one deck hot melt wheat and draw.
The periphery that described hot melt wheat is drawn vertically is coated with the layer of metal screen, and metal screen layer is that wire twines or woven wire cloth.
The beneficial effects of the utility model: the utility model comprises a pair of heart yearn, a ground wire and two-layer aluminium foil wheat are drawn, the periphery of heart yearn coats two-layer aluminium foil wheat along the length direction of heart yearn and draws, the aluminium foil wheat draws one side to be conducting surface, the another side that the aluminium foil wheat is drawn is an insulating surfaces, ground wire is located between two-layer aluminium foil wheat draws, the conducting surface that two-layer aluminium foil wheat is drawn is all towards ground wire, the conducting surface that two-layer aluminium foil wheat is drawn electrically contacts with ground wire respectively, it reduces the electric capacity of signal transmssion line unit, increase the inductance of signal transmssion line unit, form high impedance, and then make the signal transmssion line unit have good high frequency performance.
Description of drawings:
Accompanying drawing 1 is the structural representation of existing signal transmssion line unit;
Accompanying drawing 2 is a structural representation of the present utility model.
Embodiment:
Described two heart yearns 1 are arranged in parallel, and the periphery of two heart yearns 1 vertically is coated with the fixed band 4 that one deck is made through foaming by polypropylene PP, fixed band 4 the aluminium foil wheat of internal layer draw 3 and heart yearn 1 between.Fixed band 4 is convenient to two heart yearn 1 secured in parallel follow-up coating aluminium foil wheat and is drawn the carrying out of 3 operation operations.
The periphery of described heart yearn 1 coats two-layer aluminium foil wheat along the length direction of heart yearn 1 and draws 3, and the aluminium foil wheat draws 3 one sides to be conducting surface, and it is the surface that aluminum is made that the aluminium foil wheat is drawn 3 conducting surface; It is insulating surfaces that the aluminium foil wheat is drawn 3 another side, and ground wire 2 is located in two-layer aluminium foil wheat and draws between 3, and two-layer aluminium foil wheat draws 3 conducting surface all towards ground wire 2, and two-layer aluminium foil wheat draws 3 conducting surface electrically to contact with ground wire 2 respectively.Two-layer aluminium foil wheat draw 3 and the structure that is clipped in the ground wire 2 between the two-layer aluminium foil have following effects: the electric capacity that 1, reduces the signal transmssion line unit; 2, increase the inductance of signal transmssion line unit, form high impedance.
Described two-layer aluminium foil wheat draws 3 to be the peripheries that are wrapped in fixed band 4 respectively along the length direction of heart yearn 1, and two-layer aluminium foil wheat draws 3 winding direction opposite.For example, when the aluminium foil wheat of internal layer draws 3 to coat along clockwise direction, outer field aluminium foil wheat draws 3 to coat in the counterclockwise direction, two-layer aluminium foil wheat draws 3 coating direction opposite, the slit that stays after the aluminium foil wheat of internal layer can being drawn 3 to coat wraps up tightly, make ground wire 2 and aluminium foil wheat draw 3 spigot surface to have excellent contact, and ground wire 2 wrapped up tightly, make the signal transmssion line unit have good electromagnetic shielding EMI effect.
Describedly be positioned at outer field aluminium foil wheat and draw 3 periphery vertically to be coated with one deck hot melt wheat to draw 5, the hot melt wheat draws 5 to be that hot melt draws 3 skin in the aluminium foil wheat, the hot melt wheat draws 5 the aluminium foil wheat drawn 3 parcels closely, prevents that the aluminium foil wheat from drawing 3 phenomenons such as breakages, turnover to occur, and then causes short circuit.
Described hot melt wheat draws 5 periphery vertically to be coated with layer of metal screen 6, and metal screen layer 6 is that wire twines or woven wire cloth.The effect of metal screen layer 6 is electromagnetic shielding EMI protective values of enhancing signal transmission line unit.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (7)
1, a kind of signal transmssion line unit, it comprises an a pair of heart yearn (1) and a ground wire (2), it is characterized in that: described signal transmssion line unit comprises that also two-layer aluminium foil wheat draws (3), the periphery of heart yearn (1) coats two-layer aluminium foil wheat along the length direction of heart yearn (1) and draws (3), the aluminium foil wheat draws (3) one side to be conducting surface, it is insulating surfaces that the aluminium foil wheat is drawn the another side of (3), ground wire (2) is located in two-layer aluminium foil wheat and draws between (3), two-layer aluminium foil wheat draws the conducting surface of (3) all towards ground wire (2), and two-layer aluminium foil wheat draws the conducting surface of (3) electrically to contact with ground wire (2) respectively.
2, a kind of signal transmssion line according to claim 1 unit, it is characterized in that: described two heart yearns (1) are arranged in parallel, article two, the periphery of heart yearn (1) vertically is coated with the fixed band (4) that one deck is made through foaming by polypropylene, and fixed band (4) draws between (3) and the heart yearn (1) in the aluminium foil wheat of internal layer.
3, a kind of signal transmssion line according to claim 2 unit, it is characterized in that: it is the periphery that is wrapped in fixed band (4) respectively along the length direction of heart yearn (1) that described two-layer aluminium foil wheat is drawn (3), and two-layer aluminium foil wheat draws the winding direction of (3) opposite.
4, according to each described a kind of signal transmssion line unit of claim 1 to 3, it is characterized in that: described heart yearn (1) is by conductor (1a) and be coated on the peripheral insulating barrier of being made by the high density poly propylene material (1b) of conductor (1a) and form.
5, a kind of signal transmssion line according to claim 4 unit, it is characterized in that: it is the surface that aluminum is made that described aluminium foil wheat is drawn the conducting surface of (3).
6, a kind of signal transmssion line according to claim 4 unit is characterized in that: describedly be positioned at outer field aluminium foil wheat and draw the periphery of (3) vertically to be coated with one deck hot melt wheat to draw (5).
7, a kind of signal transmssion line according to claim 6 unit, it is characterized in that: described hot melt wheat draws the periphery of (5) vertically to be coated with layer of metal screen (6), and metal screen layer (6) is that wire twines or woven wire cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200514077U CN201233756Y (en) | 2008-07-29 | 2008-07-29 | Signal transmission line unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200514077U CN201233756Y (en) | 2008-07-29 | 2008-07-29 | Signal transmission line unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233756Y true CN201233756Y (en) | 2009-05-06 |
Family
ID=40620141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200514077U Expired - Fee Related CN201233756Y (en) | 2008-07-29 | 2008-07-29 | Signal transmission line unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233756Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177803A (en) * | 2011-12-20 | 2013-06-26 | 泗阳万旭电子元件有限公司 | Signal line structure |
| CN104008802A (en) * | 2014-06-18 | 2014-08-27 | 昆山信昌电线电缆有限公司 | Halogen-free waterproof sunlight resistance industrial control equipment cable |
| CN104021859A (en) * | 2014-06-18 | 2014-09-03 | 昆山信昌电线电缆有限公司 | Corrosion-resistant and sunlight-resistant equipment control cable |
| CN104134492A (en) * | 2013-05-03 | 2014-11-05 | 杭州乐荣电线电器有限公司 | Ultrahigh-speed communication transmission cable and production method thereof |
| CN104361930A (en) * | 2014-12-09 | 2015-02-18 | 成都国蓉科技有限公司 | Electromagnetic shielding lead wire |
| CN104756201A (en) * | 2012-10-26 | 2015-07-01 | 胡贝尔和茹纳股份公司 | Microwave cable and method for producing and using such a microwave cable |
| CN105825960A (en) * | 2016-05-16 | 2016-08-03 | 东莞中顶电子有限公司 | Manufacture method for USB 3.1 data line |
| CN107799211A (en) * | 2016-09-06 | 2018-03-13 | 品威电子国际股份有限公司 | Flexible flat cable structure and flexible flat cable fixing structure for electrical connector |
| CN107919189A (en) * | 2016-10-05 | 2018-04-17 | 住友电气工业株式会社 | Parallel rays cable |
| US9991023B2 (en) | 2013-01-29 | 2018-06-05 | Creganna Unlimited Company | Interconnect cable having insulated wires with a conductive coating |
| US10037834B2 (en) | 2013-01-29 | 2018-07-31 | Creganna Unlimited Company | Cable having a sparse shield |
| CN109742501A (en) * | 2019-01-21 | 2019-05-10 | 乐庭电线工业（惠州）有限公司 | High frequency data transfer line |
-
2008
- 2008-07-29 CN CNU2008200514077U patent/CN201233756Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177803A (en) * | 2011-12-20 | 2013-06-26 | 泗阳万旭电子元件有限公司 | Signal line structure |
| CN104756201A (en) * | 2012-10-26 | 2015-07-01 | 胡贝尔和茹纳股份公司 | Microwave cable and method for producing and using such a microwave cable |
| CN104756201B (en) * | 2012-10-26 | 2016-11-09 | 胡贝尔和茹纳股份公司 | Microwave cable and manufacture and the method for this microwave cable of use |
| US9666335B2 (en) | 2012-10-26 | 2017-05-30 | Huber+Suhner Ag | Microwave cable and method for producing and using such a microwave cable |
| US9991023B2 (en) | 2013-01-29 | 2018-06-05 | Creganna Unlimited Company | Interconnect cable having insulated wires with a conductive coating |
| US10037834B2 (en) | 2013-01-29 | 2018-07-31 | Creganna Unlimited Company | Cable having a sparse shield |
| CN104134492A (en) * | 2013-05-03 | 2014-11-05 | 杭州乐荣电线电器有限公司 | Ultrahigh-speed communication transmission cable and production method thereof |
| CN104008802A (en) * | 2014-06-18 | 2014-08-27 | 昆山信昌电线电缆有限公司 | Halogen-free waterproof sunlight resistance industrial control equipment cable |
| CN104021859A (en) * | 2014-06-18 | 2014-09-03 | 昆山信昌电线电缆有限公司 | Corrosion-resistant and sunlight-resistant equipment control cable |
| CN104361930A (en) * | 2014-12-09 | 2015-02-18 | 成都国蓉科技有限公司 | Electromagnetic shielding lead wire |
| CN105825960A (en) * | 2016-05-16 | 2016-08-03 | 东莞中顶电子有限公司 | Manufacture method for USB 3.1 data line |
| CN107799211A (en) * | 2016-09-06 | 2018-03-13 | 品威电子国际股份有限公司 | Flexible flat cable structure and flexible flat cable fixing structure for electrical connector |
| CN107919189A (en) * | 2016-10-05 | 2018-04-17 | 住友电气工业株式会社 | Parallel rays cable |
| CN109742501A (en) * | 2019-01-21 | 2019-05-10 | 乐庭电线工业（惠州）有限公司 | High frequency data transfer line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20170729 |