CN109754945A - High-speed transmission line with single ground wire - Google Patents
High-speed transmission line with single ground wire Download PDFInfo
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- CN109754945A CN109754945A CN201910055114.9A CN201910055114A CN109754945A CN 109754945 A CN109754945 A CN 109754945A CN 201910055114 A CN201910055114 A CN 201910055114A CN 109754945 A CN109754945 A CN 109754945A
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- ground wire
- shielding
- band
- transmission line
- speed transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 98
- 239000010410 layer Substances 0.000 claims abstract description 66
- 238000012546 transfer Methods 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000012790 adhesive layer Substances 0.000 claims abstract description 20
- 239000003292 glue Substances 0.000 claims description 59
- 239000004020 conductor Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000008719 thickening Effects 0.000 description 20
- 239000004831 Hot glue Substances 0.000 description 15
- 238000005253 cladding Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Insulated Conductors (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention discloses a kind of high-speed transmission line with single ground wire, comprising: core transmission assembly, shielding jacket and crust band, shielding jacket are placed on outside core transmission assembly, and crust band is helically wound around outside shielding jacket；Core transmission assembly includes transfer wire pair arranged in parallel；It is external that shielding jacket is coated on transfer wire, and the one side edge for shielding jacket fits in another side edge of shielding jacket, shielding jacket includes shielding band and ground wire, the lateral wall for shielding band and transfer wire pair is in close contact, and ground wire is set on shielding band, shielding band includes metal screen layer and adhesive layer, and adhesive layer is attached on metal screen layer entirely, and adhesive layer is coated on entirely on the lateral wall of transfer wire pair.The present invention is the high-speed transmission line with single ground wire, by the way that the shielding band of longitudinal wrap clad structure is arranged, so that in process, facilitate and peel off shielding band, it is time saving and energy saving, reduce the processing cost to high-speed transmission line.
Description
Technical field
The present invention relates to high-speed transfer harness fields, more particularly to a kind of high-speed transmission line with single ground wire.
Background technique
Existing high-speed transmission line is mostly single ground wire metal tape clad structure, because of different manufacturers metallic shield covering material
And clad structure is different, and whole wire rod pliability, high-frequency transmission performance and processing complexity is caused to have larger difference.
However, need to peel off metallic shield clad structure during processing high-speed transmission line, and
Since traditional high-speed transmission line is metallic shield transverse direction lapping structure, so during processing, being not easy to metal screen
Lateral lapping structure is covered to be peeled off, it is time-consuming and laborious, increase the processing cost to high-speed transmission line；Also, traditional metal
After shielding band is coated ground wire and core wire, the position of ground wire and core wire can not be also fixed, the knot of ground wire and core wire is caused
Structure is in loose unstable state, so that ground wire and core wire are likely to occur the state of opposite sliding, thereby reduce high speed and passes
The high frequency performance of defeated line.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, the easy to process, stable structure of one kind and height are provided
Keep pouring in the high-speed transmission line with single ground wire of defeated better performances.
The purpose of the present invention is achieved through the following technical solutions:
A kind of high-speed transmission line with single ground wire, comprising: core transmission assembly, shielding jacket and crust band, it is described
Shielding jacket is placed on outside the core transmission assembly, and the crust band is helically wound around outside the shielding jacket；
The core transmission assembly includes transfer wire pair arranged in parallel；
The shielding jacket is coated on that the transfer wire is external, and the one side edge of the shielding jacket fit in it is described
Another side edge of jacket is shielded, the shielding jacket includes shielding band and ground wire, and the shielding band is led with the transmission
The lateral wall of line pair is in close contact, and the ground wire is set on the shielding band, and the shielding band includes metallic shield
Layer and adhesive layer, the adhesive layer are attached at entirely on the metal screen layer, and the adhesive layer is coated on the transfer wire entirely
Pair lateral wall on.
The crust band includes at least one layer of type insulating wrapping strip in one of the embodiments, and each type insulating wrapping strip is suitable
Sequence is coated on outside the shielding jacket.
In one of the embodiments, the transfer wire to include two transfer wires disposed in parallel, described in two
The lateral wall of transfer wire fits closely setting.
The lateral wall of the ground wire and the adhesive layer are in close contact in one of the embodiments, and the ground wire is set
It is placed between two transfer wires.
In one of the embodiments, the lateral wall of the ground wire respectively with the inner sidewall and the gold of the crust band
The lateral wall for belonging to shielded layer is in close contact, and the ground wire and two transfer wires are arranged in parallel.
In one of the embodiments, in a transfer wire, the transfer wire includes that conductor and insulation are outer
Layer, the insulating outer layer are coated on outside the conductor.
The line footpath of each transfer wire is equal in one of the embodiments,.
The high-speed transmission line further includes glue layer in one of the embodiments, and the glue layer is set to described outer
On suitcase band, and the glue layer is coated on outside the shielding jacket.
The metal screen layer is copper foil shielding layer or foil shielding layer in one of the embodiments,.
The ground wire is copper wire in one of the embodiments,.
The present invention compared with the prior art the advantages of and have the beneficial effect that:
The present invention is a kind of high-speed transmission line with single ground wire, by the way that the shielding band of longitudinal wrap clad structure is arranged, from
And in process, to facilitate and peel off shielding band, it is time saving and energy saving, reduce the processing cost to high-speed transmission line；
Also, by the way that the attached adhesive layer of full note is arranged, i.e., the full coating glue on shielding band, so as to shield band by ground wire and
Core wire fixes the position of ground wire and core wire after being coated, so that the structural stability of core wire is more preferable, avoid the occurrence of ground wire and core
The structure of line is in loose unstable problem, avoids ground wire and core wire from the case where opposite sliding occur, and then improve high speed
The high frequency performance of transmission line had both been able to satisfy stable parallel lines finished product structure to realize, and had improved wire rod pliability, and be able to satisfy height
The transmission of the performances such as frequency insertion loss.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the high-speed transmission line with single ground wire of an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the high-speed transmission line with single ground wire of another embodiment shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the high-speed transmission line with single ground wire of another embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the high-speed transmission line with single ground wire of another embodiment shown in Fig. 3；
Fig. 5 is the structural schematic diagram described in Fig. 1 with the wrapped thickening glue-line of high-speed transmission line of single ground wire.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Referring to Fig. 1, a kind of high-speed transmission line with single ground wire, comprising: core transmission assembly 100, shielding jacket 200
And crust band 300, the shielding jacket 200 are placed on outside the core transmission assembly 100,300 spiral of crust band
It is wound in outside the shielding jacket 200.It should be noted that transmission of the core transmission assembly 100 for realizing high frequency, institute
Shielding jacket 200 is stated for being coated on outside core wire, plays the role of the interference signal outside shielding, and use longitudinal wrap
Mode facilitates stripping so as to realize, the operation processed；The crust band 300 is for reinforcing entire high-frequency transmission
The structural stability of line.
Referring to Fig. 1, the core transmission assembly 100 includes transfer wire pair arranged in parallel.It needs to illustrate
It is that, by the way that parallel transfer wire pair is arranged, transmission performance can be made to meet the transmission characteristic of high frequency, i.e. high-frequency transmission performance
Meet 25G Capability transmission.
Referring to Fig. 1, the shielding jacket 200 is coated on, the transfer wire is external, and the one of the shielding jacket 200
Side edge fits in another side edge of the shielding jacket 200, and the shielding jacket 200 includes shielding band 210 and ground wire
220, the lateral wall close contact of the shielding band 210 and the transfer wire pair, and the ground wire 220 is set to the screen
It covers on band 210.It should be noted that the shielding band 210 coats the transfer wire pair for longitudinal, and realize fast
The effect that speed peels off；The ground wire 220 for realizing high-frequency data cable ground connection.
It should also be noted that, the one side edge of the shielding jacket 200 fits in the other side of the shielding jacket 200
Edge, that is, the one side edge of the shielding band 210 fit in another side edge for shielding band 210, i.e., described
It shields band 210 and transfer wire pair is coated using longitudinal wrap cladding form, when using the structure of longitudinal wrap cladding, shield band 210
With cladding inner sidewall and cladding lateral wall, the inner sidewall of the shielding band 210 is coated on the outside of the transfer wire pair
On wall, meanwhile, the shielding band 210 can also have the part of overlapping, i.e., the inner sidewall of the described shielding band 210 can also coat
In on the lateral wall of the shielding band 210, compared to the metallic shield transverse direction lapping structure of traditional high frequency transmission line, this is vertical
The shielding band 210 of packet clad structure can satisfy and peel off the shielding band quickly, improve the efficiency of processing, and compared to
Lapping structure, the shielding band of longitudinal wrap clad structure are also possible that high-frequency transmission performance meets 25G Capability transmission.
Further, the shielding band 220 includes metal screen layer and adhesive layer, and the adhesive layer is attached at described entirely
On metal screen layer, the adhesive layer is coated on entirely on the lateral wall of the transfer wire pair.It should be noted that the bonding
Layer is glue, that is, the glue being coated on metal screen layer.Specifically, the adhesive layer full coat is overlying on the metal screen layer
On, by coating glue complete on metal screen layer, after high-temperature heating, glue, that is, fusible, compared to half traditional coating
For the metal screen layer of glue, the structure of core wire and ground wire can be more firmly fixed, loosely organized feelings are avoided the occurrence of
Condition reduces its relative displacement bring unstability so that core wire and ground wire opposite will not slide；At the same time it can also make ground
Line and metal screen layer directly contact, and do not influence signal transmission, accelerate the transmission rate of high-frequency signal.
In this way, by the shielding band of setting longitudinal wrap clad structure, so that in process, facilitating and wrapping shielding
Band peels off, time saving and energy saving, reduces the processing cost to high-speed transmission line；Also, by the way that the attached adhesive layer of full note is arranged, that is, exist
Full coating glue on band is shielded, so as to shield the position for fixing ground wire and core wire after band is coated ground wire and core wire
It sets, so that the structural stability of core wire is more preferable, the structure for avoiding the occurrence of ground wire and core wire is in loose unstable problem, avoids
There is the case where opposite sliding in ground wire and core wire, and then improve the high frequency performance of high-speed transmission line, are both able to satisfy to realize
Stablize parallel lines finished product structure, improves wire rod pliability, and be able to satisfy the transmission of the performances such as high frequency insertion loss.
It should be noted that in order to improve the shield effectiveness of high-speed transmission line, while improving the protection to high-speed transmission line
Ability, for example, the crust band includes at least one layer of type insulating wrapping strip, each type insulating wrapping strip sequence is coated on the shielding packet
Set is outer.In general, crust band can all be provided with one layer or two layers of type insulating wrapping strip, and by two layers of setting, height can be improved
The shield effectiveness of fast transmission line can also improve the protective capability to high-speed transmission line.
It should be noted that the transfer wire is to including two transfer wires 110 disposed in parallel, two transmission
The lateral wall of conducting wire 110 fits closely setting.The transfer wire 110 is used to the transmission of high-frequency signal, parallel by being arranged
The transfer wire 110 of setting can make high frequency transmission line when transmitting high-frequency signal, be not in jump point, be not in transmission
Unstable situation.
Referring to Fig. 2, in one embodiment, the lateral wall and the adhesive layer of the ground wire 220 are in close contact, and institute
Ground wire 220 is stated to be set between two transfer wires.In this way, by the way that ground wire 220 is set on the adhesive layer, also
It is to be bonded in ground wire on the inner sidewall of close shield band 210 with glue, the stability of ground wire can be improved, and then improves high
The stability of the signal transmission of frequency transmission line.In the present embodiment, the ground wire is copper wire.
Please refer to Fig. 3 and Fig. 4, in another embodiment, the lateral wall of the ground wire 220 respectively with the crust band
The lateral wall of 300 inner sidewall and the metal screen layer is in close contact, and the ground wire 220 and two transfer wires
It is arranged in parallel.In this way, by the way that ground wire 220 is set on the lateral wall of the shielding band 210, so as to completely cut off ground
Interference of the line to transfer wire 110, then by the way that by after the wrapped cladding of crust band 300, ground wire can be fixed on to shielding band
Lateral wall on, secure structure and the position of transfer wire and ground wire, so that it will not opposite sliding, reduce its relative displacement band
The unstability come；At the same time it can also contacting ground wire and metallic shield band directly, signal transmission not only will not influence,
But also the speed of acceleration signals transmission.
It should be noted that the transfer wire 110 includes conductor and insulating outer layer in a transfer wire,
The insulating outer layer is coated on outside the conductor.It should be noted that the conductor is used for transmission high-frequency signal, outside the insulation
Layer is for completely cutting off the electrical connection between conductor and conductor, to improve the stability and reliability of data and signal transmission.It is preferred that
, the conductor is copper wire.
It should be noted that the line footpath of each transfer wire 110 is equal.In this way, by the way that the equal biography of each line footpath is arranged
Transporting line can make the stability for improving data and signal transmission.
It should be noted that in order to further increase the structural stability of high frequency transmission line, and then height can be improved and keep pouring in
The stability of defeated line, for example, the high-speed transmission line further includes glue layer, the glue layer is set on the crust band,
And the glue layer is coated on outside the shielding jacket.In this way, by setting glue layer, when carrying out around package operation, by
In being provided with glue on outer layer band, the structural stability that crust band note is attached on metal screen layer can be improved, it can be with
Understand, it, may be during wrapped operation if being not provided with glue layer, it may appear that wrapped loose situation, because
This can be further improved the structural stability of metal screen layer, and then high-frequency data biography can be improved by the way that glue layer is arranged
Defeated stability.
In order to guarantee the shield effectiveness of high frequency transmission line, for example, the metal screen layer is copper foil shielding layer or aluminum foil screen
Cover layer.In this way, passing through setting copper foil or aluminium foil, it is ensured that the shield effectiveness of high-frequency data cable.
It is appreciated that when the crust band to high-speed transmission line carries out wrapped, it may appear that certain overlapping is being overlapped
Partial crust band and unfolded crust band, with regard to will appear certain whole problem that is uneven, so, thus
It will lead to high-speed transmission line and out-of-flatness, asymmetric situation occur；Also, do not have since ratio occurs in the crust band of lap
More one layer of the crust bands of the crust band of lap, also will appear the poor situation of shield effectiveness in this way；Simultaneously as weight
The crust band of folded part is higher than the crust band of not lap, so, the crust band of lap with it is not be overlapped
It is even more to have subtle gap between partial crust band, these subtle gaps bend, wind or draw in high-speed transmission line
It after pulling, then can be amplified, that is, will increase the gap of crust band, to reduce the stability of its structure, reduce its high frequency
The performance of data transmission；Therefore, in order to avoid there is the whole problem that is uneven, as when carrying out wrapped crust band
Avoid the crust band of lap and the crust band of non-overlap from difference in height occur, guarantee high-speed transmission line have it is smooth and
Symmetrical structure；Also, in order to avoid the crust band for occurring comparing not lap due to the crust band of lap is more
There is the poor problem of shield effectiveness in one layer of crust band, meanwhile, in order to avoid the crust band of lap and without weight
There is subtle gap between the crust band of folded part, improve the stability of high velocity transmission line structure, reduces high-speed transmission line
High frequency data transfer performance；In one embodiment, for example, the high-speed transmission line further includes wrapped thickening glue-line, it is described around
Packet thickeies glue-line and is attached on one side of the glue layer far from the crust band, when the crust band is helically wound around
When on the shielding jacket, the wrapped thickening glue-line is set to the position of the crust band of the lap of spiral winding
On；The wrapped thickening glue-line includes the first excessive glue portion, the second excessive glue portion and hot-melt adhesive paste portion, and the hot-melt adhesive paste portion has the
First connecting pin of one connecting pin and second connection end, the hot-melt adhesive paste portion is connect with first excessive glue portion, the hot melt
The second connection end of interconnecting piece is connect with second excessive glue portion；The wrapped thickening glue-line is glue layer, first excessive glue
Portion and second excessive glue portion are located at the two sides in the hot-melt adhesive paste portion.In this way, by the way that wrapped thickening glue-line is arranged, and
First excessive glue portion, the second excessive glue portion and hot-melt adhesive paste portion are set on wrapped thickening glue-line, can to avoid carry out it is wrapped outer
When suitcase band, there is the whole problem that is uneven, it can avoid the crust band of lap and the crust band of non-overlap
There is difference in height, guarantees that high-speed transmission line has smooth and symmetrical structure；Also, it can also avoid outside due to lap
The crust band that suitcase band occurs one layer more than the crust band of the not lap problem that shield effectiveness occur poor, together
When, the crust band of lap can also be avoided and between the crust band of lap subtle gap do not occur, mentioned
The stability of high high velocity transmission line structure reduces the high frequency data transfer performance of high-speed transmission line.
In order to which preferably above-mentioned wrapped thickening glue-line is explained and illustrated, to more fully understand above-mentioned wrapped thickening glue
The design of layer.As shown in figure 5, the high-speed transmission line further includes wrapped thickening glue-line 400, the wrapped thickening glue-line 400 is pasted
It invests on one side of the glue layer far from the crust band, when the crust band is helically wound around the shielding jacket
When upper, the wrapped thickening glue-line 400 is set on the position of the crust band of the lap of spiral winding.It needs
Bright, the wrapped thickening glue-line 400 is common glue, and the lap for attaching crust band on the market,
Make crust band more stable after heating, and is not in gap.
The wrapped thickening glue-line 400 includes the first excessive glue portion 410, the second excessive glue portion 420 and hot-melt adhesive paste portion 430, institute
Hot-melt adhesive paste portion 430 is stated with the first connecting pin and second connection end, first connecting pin in the hot-melt adhesive paste portion 430 with it is described
The connection of first excessive glue portion 410, the second connection end in the hot-melt adhesive paste portion 430 are connect with second excessive glue portion 420；It is described around
It is glue layer that packet, which thickeies glue-line, and first excessive glue portion and second excessive glue portion are located at the two of the hot-melt adhesive paste portion
Side.It should be noted that first excessive glue portion 410 be used for heat after spilling outer suitcase band one side, described second
For being overflowed after heating in the another side of outer suitcase band, the hot-melt adhesive paste portion 430 overflows for connecting first in excessive glue portion 420
Glue portion 410 and the second excessive glue portion 420.
By the way that wrapped thickening glue-line is arranged on glue layer, can make when crust band is wound operation,
Due to the wrapped presence for thickening glue-line, after being heated to wire rod, so that the wrapped thickening glue-line on crust band is being wound
After be extruded, that is, can make wrapped thickening glue-line to two sides overflowed come, that is, the first excessive glue portion heat and add
The outside of crust band can be spilt into after pressure so that the crust band of the lap in tradition with do not have overlapping portion
Point crust band between occur being filled glue on the side in subtle gap, that is, lap crust band with
Occur the side on subtle gap between the crust band for not having lap and fills up the first excessive glue portion；Similarly, in overlapping portion
The crust band divided and the other side not occurred on subtle gap between the crust band of lap can also be filled glue
Water, that is, lap crust band and between the crust band of lap there is not the other side in subtle gap
On be filled the second excessive glue portion, can be to avoid occurring the crust band than not no lap due to the crust band of lap
There is the poor problem of shield effectiveness in more one layers of crust band, also, by being provided with the first spilling portion and the second spilling portion,
Without gap between can dividing to avoid lap and non-overlapping portion, after wire rod is bent, winds or pulls, will not break
The structure of bad wire rod so as to improve the stability of its structure, and then improves the performance of high frequency data transfer.
It should also be noted that, hot-melt adhesive paste portion, then after heating and being extruded, due to receiving extruding force, hot melt connects
Socket part also can be to two sides enlarged-area, so that first excessive glue portion and second excessive glue of hot-melt adhesive paste portion and two sides
Portion's connection, and since first excessive glue portion, the second excessive glue portion and hot-melt adhesive paste portion are extruded simultaneously, so as to avoid
When carrying out wrapped crust band, there is the whole problem that is uneven, guarantees that high-speed transmission line has smooth and symmetrical structure；
Further, also, after being heated and being extruded, the first spilling portion and the second spilling portion can be made to extend outwardly, made
It obtains the first spilling portion and the second spilling portion is closely contacted with each other, form a glue layer, i.e., when the first spilling portion and second are overflowed
After portion is heated and pressurized, the outside that the first spilling portion is adjacent with the crust band on the one side of crust band can be made to wrap
Second spilling portion of band is connected, and is in close contact, whole ask that be uneven occurs so as to further avoid high-speed transmission line
Topic is further ensured that high-speed transmission line has smooth and symmetrical structure.
In this way, by the way that wrapped thickening glue-line is arranged, and the first excessive glue portion, the second excessive glue are set on wrapped thickening glue-line
Portion and hot-melt adhesive paste portion the whole problem that is uneven can occur, it can avoid to avoid when carrying out wrapped crust band
There is difference in height in the crust band of lap and the crust band of non-overlap, and it is smooth and symmetrical to guarantee that high-speed transmission line has
Structure；Also, the crust band due to lap can also be avoided to occur more than the not crust band of lap one layer
Crust band there is the poor problem of shield effectiveness, at the same time it can also avoid the crust band of lap with it is not be overlapped
There is subtle gap between partial crust band, improves the stability of high velocity transmission line structure, reduce high-speed transmission line
High frequency data transfer performance.
The present invention compared with the prior art the advantages of and have the beneficial effect that:
The present invention is a kind of high-speed transmission line with single ground wire, by the way that the shielding band of longitudinal wrap clad structure is arranged, from
And in process, to facilitate and peel off shielding band, it is time saving and energy saving, reduce the processing cost to high-speed transmission line；
Also, by the way that the attached adhesive layer of full note is arranged, i.e., the full coating glue on shielding band, so as to shield band by ground wire and
Core wire fixes the position of ground wire and core wire after being coated, so that the structural stability of core wire is more preferable, avoid the occurrence of ground wire and core
The structure of line is in loose unstable problem, avoids ground wire and core wire from the case where opposite sliding occur, and then improve high speed
The high frequency performance of transmission line had both been able to satisfy stable parallel lines finished product structure to realize, and had improved wire rod pliability, and be able to satisfy height
The transmission of the performances such as frequency insertion loss.
Only several embodiments of the present invention are expressed for embodiment described above, and the description thereof is more specific and detailed, but
It cannot be construed as a limitation to the scope of the present invention.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of high-speed transmission line with single ground wire characterized by comprising core transmission assembly, shielding jacket and crust
Band, the shielding jacket are placed on outside the core transmission assembly, and the crust band is helically wound around the shielding jacket
Outside；
The core transmission assembly includes transfer wire pair arranged in parallel；
The shielding jacket is coated on that the transfer wire is external, and the one side edge of the shielding jacket fits in the shielding
Another side edge of jacket, the shielding jacket include shielding band and ground wire, the shielding band and the transfer wire pair
Lateral wall be in close contact, and the ground wire is set on the shielding band, the shielding band include metal screen layer and
Adhesive layer, the adhesive layer are attached at entirely on the metal screen layer, and the adhesive layer is coated on the transfer wire pair entirely
On lateral wall.
2. the high-speed transmission line with single ground wire according to claim 1, which is characterized in that the crust band includes extremely
Few one layer of type insulating wrapping strip, each type insulating wrapping strip sequence are coated on outside the shielding jacket.
3. the high-speed transmission line with single ground wire according to claim 1, which is characterized in that the transfer wire is to including
Two transfer wires disposed in parallel, the lateral wall of two transfer wires fit closely setting.
4. the high-speed transmission line with single ground wire according to claim 3, which is characterized in that the lateral wall of the ground wire with
The adhesive layer is in close contact, and the ground wire is set between two transfer wires.
5. the high-speed transmission line with single ground wire according to claim 3, which is characterized in that the lateral wall of the ground wire point
It is not in close contact with the lateral wall of the inner sidewall of the crust band and the metal screen layer, and the ground wire and two institutes
It is arranged in parallel to state transfer wire.
6. the high-speed transmission line with single ground wire according to claim 3, which is characterized in that in a transfer wire
In, the transfer wire includes conductor and insulating outer layer, and the insulating outer layer is coated on outside the conductor.
7. the high-speed transmission line with single ground wire according to claim 6, which is characterized in that the line of each transfer wire
Diameter is equal.
8. the high-speed transmission line with single ground wire according to claim 1, which is characterized in that the high-speed transmission line also wraps
Glue layer is included, the glue layer is set on the crust band, and the glue layer is coated on outside the shielding jacket.
9. the high-speed transmission line with single ground wire according to claim 1, which is characterized in that the metal screen layer is copper
Foil shielded layer or foil shielding layer.
10. the high-speed transmission line with single ground wire according to claim 1, which is characterized in that the ground wire is copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055114.9A CN109754945A (en) | 2019-01-21 | 2019-01-21 | High-speed transmission line with single ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055114.9A CN109754945A (en) | 2019-01-21 | 2019-01-21 | High-speed transmission line with single ground wire |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740808B1 (en) * | 2003-03-05 | 2004-05-25 | Comax Technology Co., Ltd. | Transmission cable structure |
| CN104347164A (en) * | 2014-10-17 | 2015-02-11 | 东莞市奕联实业有限公司 | High-speed and high-bandwidth flat cable |
| CN109243703A (en) * | 2018-09-04 | 2019-01-18 | 惠州乐庭电子线缆有限公司 | The preparation method and high frequency transmission line of high frequency transmission line with longitudinal clad structure |
| CN209433936U (en) * | 2019-01-21 | 2019-09-24 | 乐庭电线工业（惠州）有限公司 | High-speed transmission line with single ground wire |
-
2019
- 2019-01-21 CN CN201910055114.9A patent/CN109754945A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740808B1 (en) * | 2003-03-05 | 2004-05-25 | Comax Technology Co., Ltd. | Transmission cable structure |
| CN104347164A (en) * | 2014-10-17 | 2015-02-11 | 东莞市奕联实业有限公司 | High-speed and high-bandwidth flat cable |
| CN109243703A (en) * | 2018-09-04 | 2019-01-18 | 惠州乐庭电子线缆有限公司 | The preparation method and high frequency transmission line of high frequency transmission line with longitudinal clad structure |
| CN209433936U (en) * | 2019-01-21 | 2019-09-24 | 乐庭电线工业（惠州）有限公司 | High-speed transmission line with single ground wire |
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Effective date of registration: 20210629 Address after: 516029 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Applicant after: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Applicant after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Applicant after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Applicant after: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. Address before: 516006 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Applicant before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Applicant before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Applicant before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Applicant before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Applicant before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |