CN109830331A - The high frequency cable and its production technology of longitudinal wrap viscosity copper foil - Google Patents
The high frequency cable and its production technology of longitudinal wrap viscosity copper foil Download PDFInfo
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- CN109830331A CN109830331A CN201910026593.1A CN201910026593A CN109830331A CN 109830331 A CN109830331 A CN 109830331A CN 201910026593 A CN201910026593 A CN 201910026593A CN 109830331 A CN109830331 A CN 109830331A
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- copper foil
- parallel lines
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- wheat
- high frequency
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 239000011889 copper foil Substances 0.000 title claims abstract description 101
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 241000209140 Triticum Species 0.000 claims abstract description 100
- 235000021307 Triticum Nutrition 0.000 claims abstract description 100
- 239000010410 layer Substances 0.000 claims abstract description 91
- 239000003292 glue Substances 0.000 claims abstract description 70
- 239000012943 hotmelt Substances 0.000 claims abstract description 55
- 239000010949 copper Substances 0.000 claims abstract description 40
- 229910052802 copper Inorganic materials 0.000 claims abstract description 40
- 239000012790 adhesive layer Substances 0.000 claims abstract description 29
- 239000008358 core component Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 239000005030 aluminium foil Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000010257 thawing Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 13
- 230000008054 signal transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention discloses the high frequency cable and its production technology of a kind of longitudinal wrap viscosity copper foil, including at least one set of parallel lines pair and protection overcoat, and it is external that protection overcoat is placed on parallel lines；In a parallel lines pair, parallel lines draw housing to including core component, sticky copper foil-clad film and hot melt wheat, sticky copper foil-clad film is coated on outside core component, and a side of sticky copper foil-clad film is closely attached on another side of sticky copper foil-clad film, and hot melt wheat draws housing to be placed on the lateral wall of sticky copper foil-clad film；Sticky copper foil-clad film includes glue adhesive layer and copper foil wheat draws layer, and copper foil wheat is drawn and is provided with conducting surface on layer, and glue adhesive layer note invests copper foil wheat and draws on the conducting surface of layer, and ground wire and two core wires are adhered to glue adhesive layer far from the another side of conducting surface respectively.The high frequency cable of longitudinal wrap viscosity copper foil of the invention can be realized that compact-sized, signal stabilization is higher and the preferable effect of shielding properties.
Description
Technical field
The present invention relates to the construction applications of high frequency cable, a kind of high frequency cable more particularly to longitudinal wrap viscosity copper foil and its
Production technology.
Background technique
High frequency cable is the cable for being used for transmission high-frequency signal.Since cable has distribution capacity and distributed inductance, to height
Frequency signal has filter action and makes high frequency signal attenuation, so the transmission for high-frequency signal, needs distribution capacity and distribution electricity
Feel small cable.Currently, shielding material used in traditional 25G, 40G high frequency wire is mostly aluminium foil or copper foil, and shield
Mode is that aluminium foil longitudinal wrap or copper foil are wrapped.However, copper foil is around structural instability, it is very poor to the retentivity of decaying.Aluminium foil longitudinal wrap
Although structural stability is preferable compared with copper foil, copper foil is inferior to the improvement of decaying.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, provide a kind of compact-sized, signal stabilization compared with
High and the preferable longitudinal wrap viscosity copper foil of shielding properties high frequency cable and its production technology.
The purpose of the present invention is achieved through the following technical solutions:
A kind of high frequency cable of longitudinal wrap viscosity copper foil, comprising: protection overcoat and at least one set of parallel lines pair, outside the protection
It is external to be placed on the parallel lines；
In the parallel lines pair, the parallel lines are to including core component, sticky copper foil-clad film and hot melt wheat
Housing is drawn, the viscosity copper foil-clad film is coated on outside the core component, and the side of the sticky copper foil-clad film
Side is closely attached on another side of the sticky copper foil-clad film, and the hot melt wheat draws housing to be placed on the sticky copper
On the lateral wall of foil coating film；
The core component includes ground wire and two core wires, and the lateral wall of two core wires is closely, and described
Interval is respectively arranged between ground wire and two core wires；
The viscosity copper foil-clad film includes glue adhesive layer and copper foil wheat draws layer, and the copper foil wheat is drawn to be provided on layer and lead
Electric face, the glue adhesive layer note invest the copper foil wheat and draw on the conducting surface of layer, the ground wire and two core wires
It is adhered on the another side of the glue adhesive layer far from the conducting surface respectively.
It includes that the first hot melt wheat draws layer and the second hot melt wheat to draw that the hot melt wheat, which draws housing, in one of the embodiments,
Layer, the first hot melt wheat draw layer to be coated on the copper foil wheat and draw outside layer, and the second hot melt wheat draws layer to be coated on described first
Wheat is heated to draw outside layer.
For the parallel lines to further including lettering layer, the lettering layer note invests the glue in one of the embodiments,
On adhesive layer.
The protection overcoat includes that the aluminium foil wheat of sequence setting from inside to outside draws layer, braiding in one of the embodiments,
Line set and the outer quilt of insulation.
For the parallel lines to being provided with two groups, the lateral wall of parallel lines pair described in two groups is tight in one of the embodiments,
It gets together, and the lateral wall of parallel lines pair described in two groups is abutted with the inner sidewall of the protection overcoat respectively, described in two groups
Parallel lines are to being arranged in parallel in the protection overcoat.
The high frequency cable further includes center-filled wire body and four groups of parallel lines pair, every phase in one of the embodiments,
Two adjacent parallel lines connect head and the tail, and the lateral wall of each parallel lines pair respectively with the center-filled wire body
Lateral wall closely.
The protection overcoat further includes buffer strip body in one of the embodiments, and the buffer strip body is coated on each institute
It states on the lateral wall of parallel lines pair.
The high frequency cable further includes center line layer and six groups of parallel lines pair in one of the embodiments, each described flat
Line is to the central axis of the center line layer, circumferentially permutation is distributed, and the lateral wall of each parallel lines pair point
Not closely with the lateral wall of the center line layer.
The center line layer includes buffer zone body and two groups of parallel lines pair, the buffer zone in one of the embodiments,
Body be coated on two groups described in parallel lines it is external, and outside of the lateral wall of the buffer zone body also with parallel lines pair described in six groups
Wall is closely.
A kind of production technology of high frequency cable, includes the following steps:
Conductive glue is uniformly applied to copper foil wheat to draw on layer, to form the sticky copper foil-clad with conductive glue
Film；
Two core wires are straightened, and the lateral wall for making two core wires is closely, are put after then ground wire is straightened
Interval between two core wires, to form cord assembly；
By the one side with conductive glue of the sticky copper foil-clad film be longitudinally coated on the lateral wall of the ground wire with
On the lateral wall of two core wires, and a side of the sticky copper foil-clad film is closely attached to the sticky copper foil packet
On another side of overlay film, to form the sets of parallel with two core wires；
The sets of parallel is heated by infrared oven, the thawing so that conductive glue is activated, using cold
But curing conductive glue after, so that the viscosity copper foil-clad film is coated on the lateral wall of ground wire and two core wires；
Hot melt wheat is drawn carry out along the direction of the parallel lines pair it is wrapped after, form hot melt wheat and housing drawn to be placed on institute
It states on the lateral wall of sets of parallel, to form the parallel lines pair that there is hot melt wheat to draw housing；
Protection overcoat is drawn using spiral winding technique in the hot melt wheat and is wound cladding operation, heating outside housing
After curing operation, the high frequency cable of longitudinal wrap viscosity copper foil is obtained.
The present invention compared with the prior art the advantages of and have the beneficial effect that:
The present invention is the high frequency cable and its production technology of a kind of longitudinal wrap viscosity copper foil, is arranged on layer by drawing in copper foil wheat
Glue adhesive layer, may be implemented the longitudinally wrapped of copper foil, not only may be implemented the preferable feature of the stability of longitudinal wrap structure, but also can be with
It avoids the problem that signal is attenuated during transmission, plays good shield effectiveness；Also, due to glue adhesive layer
Thickness very little, for the Conductivity very little of copper foil, after oven heat, the glue on glue adhesive layer can be very
Melt completely in short time, is solidificated in core wire surface and copper foil conducting surface and copper foil wheat is drawn between layer, structure is more compact, improves
The structural stability of high frequency cable；Simultaneously because on copper foil be provided with glue so that copper foil wheat draw layer on conducting surface with
Ground contact is good and copper foil wheat draws the region of layer overlapping can also be more firm, further enhances the structure of high frequency cable
Stability improves the shielding properties of high frequency cable, improves line even if contact is still good after the test such as bending
The stability of the signal transmission of material.
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 frequency cable of the longitudinal wrap viscosity copper foil of an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the high frequency cable of the longitudinal wrap viscosity copper foil of another embodiment shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the high frequency cable of two groups of parallel lines pair shown in FIG. 1；
Fig. 4 is the structural schematic diagram of the high frequency cable of four groups of parallel lines pair shown in FIG. 1；
Fig. 5 is the structural schematic diagram of the high frequency cable of eight groups of parallel lines pair shown in FIG. 1
Fig. 6 is the flow chart of the production technology of high frequency cable of the invention；
Fig. 7 is the waveform diagram that conductive glue is melted relative spectral radiation flux vs wavelength after activation；
Fig. 8 is the waveform diagram of the absorbable wavelength of conductive glue；
Fig. 9 is to heat wheat to draw in row around the flow chart of package operation；
Figure 10 is the flow chart of the production technology of high frequency harness.
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.
A kind of high frequency cable of longitudinal wrap viscosity copper foil, comprising: at least one set of parallel lines are to 100 and protection overcoat 200, institute
It states protection overcoat 200 and is placed on the parallel lines to outside 100；It should be noted that the parallel lines are to 100 for realizing high frequency
Signal transmission；The protection overcoat 200 is for protecting each parallel lines to improve the use of high frequency cable to not damaged
Service life, wherein it should also be noted that may include multiple parallel lines pair in a high frequency cable, so that the biography of different signals
It is defeated.
Referring to Fig. 1, the parallel lines include core component 110, sticky copper to 100 in the parallel lines pair
Foil coating film 120 and hot melt wheat draw housing 130, and the viscosity copper foil-clad film 120 is coated on outside the core component 110,
And a side of the viscosity copper foil-clad film 120 is closely attached on another side of the sticky copper foil-clad film 120,
The hot melt wheat draws housing 130 to be placed on the lateral wall of the sticky copper foil-clad film 120,200 sets of the protection overcoat
The hot melt wheat is placed in draw outside housing 130.It should be noted that the core component 110 forms the main body of signal transmission,
The viscosity copper foil-clad film 120 is used for covering thread core assembly, and to realize being tightly combined between core, structure is more stable；Institute
Stating hot melt wheat draws housing 130 to be used for parallel lines to protection is played the role of, i.e. protective wire core assembly 110 and sticky copper foil packet
Overlay film 120 is not damaged, while can also further increase the structural stability of wire rod.
Referring to Fig. 1, the core component 110 includes ground wire 111 and two core wires 112, two core wires 112 it is outer
Side wall closely, and is respectively arranged with interval between the ground wire and two core wires.It should be noted that describedly
Line 111 is used for transmission high-frequency signal for the ground connection in high frequency signal transmission, the core wire 112.
Referring to Fig. 1, the viscosity copper foil-clad film 120 includes that glue adhesive layer 121 and copper foil wheat draw layer 122, it is described
Copper foil wheat is drawn and is provided with conducting surface on layer 122, and 121 note of glue adhesive layer invests the copper foil wheat and the described of layer 122 is drawn to lead
On electric face, the ground wire 111 and two core wires 121 are adhered to the glue adhesive layer 121 far from the conducting surface respectively
Another side on.It should be noted that the glue adhesive layer 121 is used to copper foil wheat drawing layer being bonded in ground wire 111 and two
Outside core wire 121 described in root, so that the structure of wire rod is more stable, while but also copper foil realizes the effect of longitudinal wrap.
In this way, glue adhesive layer is arranged on layer by drawing in copper foil wheat, the longitudinally wrapped of copper foil may be implemented, it both can be real
It the problem of showing the preferable feature of the stability of longitudinal wrap structure, and being attenuated during transmission to avoid signal, plays
Good shield effectiveness；Also, since the thickness very little of glue adhesive layer is passing through the Conductivity very little of copper foil
After oven heat, the glue on glue adhesive layer can melt completely within a very short time, be solidificated in core wire surface and copper foil is led
Electric face and copper foil wheat are drawn between layer, and structure is more compact, improves the structural stability of high frequency cable；Simultaneously because on copper foil
Provided with glue, so that the region that copper foil wheat draws conducting surface on layer and ground contact is good and copper foil wheat draws layer to be overlapped
Can be more firm, the structural stability of high frequency cable is further enhanced, even if contacting still good after the test such as bending
It is good, the shielding properties of high frequency cable is improved, the stability of the signal transmission of wire rod is improved.
Referring to Fig. 2, it includes that the first hot melt wheat draws layer 131 and the second hot melt wheat to draw layer that the hot melt wheat, which draws housing 130,
132, the first hot melt wheat draws layer 131 to be coated on the copper foil wheat and draws outside layer 122, and the second hot melt wheat draws layer 132 to coat
It is drawn outside layer 131 in the first hot melt wheat.It should be noted that the first hot melt wheat draws layer 131 to be used for so that core component
Structure it is more stable；The second hot melt wheat draws layer 132 to be used to further strengthen the structural compactness of high frequency wire, further mentions
High structural stability.Wrapped first hot melt wheat draws layer 131 and after infrared oven is toasted and then cooled and solidified, into second
A taping head, wrapped second hot melt wheat draw layer 132, this layer of wheat pulls around to being S to wrapped, further increase wire rod with this to realize
The effect of the stability of structure.
Referring to Fig. 1, the parallel lines further include lettering layer 140 to 100, and 140 note of lettering layer invests described
On glue adhesive layer 121.Specifically, the lettering layer 140 is attached on the glue adhesive layer 121 far from first heat
Molten wheat is drawn on the one side of layer.
In a core wire 112, referring to Fig. 1, the core wire 112 includes conductor 112a and insulating outer layer
112b, the insulating outer layer are coated on outside the conductor.The insulating outer layer is PE insulating layer.So, it is ensured that wire rod
High-frequency transmission efficiency can also realize the stability of structure, conductor is protected not to be damaged.
Referring to Fig. 3, the aluminium foil wheat that the protection overcoat 200 includes sequence setting from inside to outside draws layer 210, litzendraht wire set
220 and insulation it is outer by 230.It should be noted that in two groups of parallel lines pair, after drawing layer 210 to wind by aluminium foil wheat, Ke Yiti
Structural stability between high each parallel lines pair, and then improve validity when signal transmission.
In one embodiment, referring to Fig. 2, the parallel lines are provided with two groups to 100, parallel lines pair described in two groups
100 mutually winding and spirals setting so that parallel lines described in two groups to 100 the hot melt wheat draw housing lateral wall with
The protection overcoat supports, and closely, and parallel lines pair described in two groups is outer for the lateral wall of parallel lines pair described in two groups
Side wall is abutted with the inner sidewall of the protection overcoat respectively.Specifically, parallel lines described in two groups are to being arranged in parallel in the protection
Housing it is interior.In this way, the high-frequency transmission cable of two groups of parallel lines pair may be implemented.
In another embodiment, referring to Fig. 4, the high frequency cable further includes that center-filled wire body 300 and four groups are flat
Line pair connects head and the tail per two adjacent parallel lines, and parallel lines described in four groups are mutually wound to 100 and spiral is set
It sets, so that parallel lines described in four groups draw the lateral wall of housing to support with the protection overcoat the 100 hot melt wheat, and
And the lateral wall of each parallel lines pair respectively with the lateral wall of the center-filled wire body closely.It needs to illustrate
It is that the center-filled wire body 300 is used for so that in each parallel lines to when being wound, it can be with center-filled wire body
300 central axis is wound, and forms the more stable high frequency cable with four groups of parallel lines pair of structure.In the present embodiment
In, each parallel lines are to the central axis of the center-filled wire body, circumferentially permutation is distributed.In this way, improving high frequency cable
Structural stability, and reduce signal in transmission process signal decay.
In the present embodiment, referring to Fig. 4, the protection overcoat 200 further includes buffer strip body 240, the buffer strip body
240 are coated on the lateral wall of each parallel lines pair.The buffer strip body 240 is foaming PP buffer strip.
In another embodiment, referring to Fig. 5, the high frequency cable further includes center line layer 400 and six groups of parallel lines
Right, each parallel lines are to the central axis of the center line layer, circumferentially permutation is distributed, and parallel lines described in six groups are to 100 phases
Mutually winding and spiral setting so that parallel lines described in six groups to 100 the hot melt wheat draw housing lateral wall with it is described
Protection overcoat supports, and lateral wall of the lateral wall of each parallel lines pair respectively with the center line layer is close in one
It rises.It should be noted that the center line layer 400 is located at each parallel lines to middle position, high-frequency electrical can be made with this
The more compact structure of cable, and then improve the structural stability of high frequency cable.
In the present embodiment, referring to Fig. 5, the center line layer 400 includes buffer zone body 410 and two groups of parallel lines pair
420, the buffer zone body be coated on two groups described in parallel lines it is external, and the lateral wall of the buffer zone body is also and described in six groups
The lateral wall of parallel lines pair is closely.In this way, may be implemented by eight groups of parallel lines to the high frequency cable formed, structure is more steady
Fixed, efficiency of transmission is higher.
It should be noted that being coated in copper foil wheat by using conductive glue draws layer conducting surface, and glue is with a thickness of 3 μ~5
μ, it is preferred that glue is with a thickness of 4 μ, so to copper foil Conductivity very little, and then improves the transmission availability of signal.The height
After special oven heat, glue can melt the copper foil of frequency cable completely within a very short time, then be solidificated in core wire
Lateral wall and copper foil wheat are drawn between layer, are tightly combined, stable structure.
Position equilibrium is put up in core wire two sides in the copper foil two edges of the high frequency cable of the application, i.e., sticky copper foil-clad film phase
The part being mutually overlapped, that is, a side of the sticky copper foil-clad film 120 are closely attached to the sticky copper foil-clad film
Lap on 120 another side can to realize that shielding properties is good to the wire rod of high frequency cable, screening ability compared with
For equilibrium, there is good improvement to SCD21, IL, SCD21-SDD21.It should also be noted that, using heating, conductive glue
Melt, after solidification, copper foil conducting surface and ground contact are good, and since other positions of copper foil, such as copper foil overlapping region have
Solidified glue, even if contact is still good after the test such as bending, improves high-frequency line so that this structure is more stable
The shield effectiveness of material, while also improving the stability of the signal transmission of high frequency cable.
Referring to Fig. 6, a kind of production technology of high frequency cable, includes the following steps:
S100, conductive glue is uniformly applied on copper foil wheat drawing layer, to form the sticky copper foil with conductive glue
Coating film；
S200, two core wires are straightened, and the lateral wall for making two core wires is closely, and then ground wire is straightened
The interval being placed between two core wires afterwards, to form cord assembly；By using special solid PE core insulation material
To achieve the purpose that while reduce the dielectric constant of Insulation Material and keep higher mechanical strength.
S300, the outside that the one side with conductive glue of the sticky copper foil-clad film is longitudinally coated on to the ground wire
On the lateral wall of wall and two core wires, and a side of the sticky copper foil-clad film is closely attached to the sticky copper
On another side of foil coating film, to form the sets of parallel with two core wires；Packet technology is dragged using copper foil, copper foil is led to
It crosses the longitudinal wrap mold by special designing to be coated on the lateral wall of two core wires, needs to design the band of input suitable width at this time
Viscosity copper foil, suitable longitudinal wrap Duplication, the setting of these key parameters be in conjunction with parallel lines pair different-thickness and width and
What the combined factors such as final assembling desired size were calculated.When being dragged in adhesive copper foil, band is put by precise controlling
Power, longitudinal wrap jig specific position obtain preferable wire rod appearance, thus uniformity of the packet paper differential signal line to shielding, screen
The uniformity of rear Distribution of Magnetic Field is covered, and then maximumlly guarantees good signal integrity (SI).
S400, the sets of parallel is heated, the thawing so that conductive glue is activated by infrared oven, then passed through
Curing conductive glue after supercooling, so that the viscosity copper foil-clad film is coated on the lateral wall of ground wire and two core wires
On；By the way that the infrared oven of specific wavelength can be emitted by special designing after wire cladding, added using specific wavelength
Heat is coated in the EVA glue of copper foil conducting surface, i.e. conductive glue.At this point, EVA glue absorbs specific wavelength radiation energy, glue
Water is melted activation, please refers to Fig. 7 and Fig. 8, at the same time, is absorbed because the absorbed wavelength of PE insulation is different from EVA glue
Wavelength, and such infrared oven by special designing emits seldom PE and insulate absorbed wavelength, and PE insulation is just less
It is absorbed into energy.Such special activation glue mode can not only guarantee the glue viscosity of copper foil surface but also can guarantee the PE of core wire
Insulation absorbs less heat, guarantees that the geometry of PE insulation generates few deformation, is further ensured that the good letter of differential pair
Number integrality (SI).
S500, hot melt wheat is drawn carry out along the direction of the parallel lines pair it is wrapped after, form hot melt wheat and draw housing set
It is placed on the lateral wall of the sets of parallel, to form the parallel lines pair that there is hot melt wheat to draw housing；It is appreciated that entering
While infrared oven by special designing, by the wrapped polyester belt for being coated with EVA glue of paper wrapping machine, need to design at this time
Polyester belt, the suitable lay of lapping for inputting suitable width, around to generally Z-direction.The setting of these key parameters is bonding wire
Pair different-thickness and width and the assembling combined factors such as desired size be calculated, and simultaneously by the infrared of special designing
Oven, the thawing at this point, infrared capable that the EVA glue that hot melt wheat is pulled on also absorbs specific wavelength is activated, then through being subcooled
But air gun cools down rapidly, and EVA glue is cured again, and then tightly wraps up online to surface, increases the structural stability of line pair.
S600, protection overcoat is drawn to be wound to coat outside housing using spiral winding technique in the hot melt wheat and is grasped
Make, is heating and curing after operation, obtains the high frequency cable of longitudinal wrap viscosity copper foil.
In this way, glue adhesive layer is arranged on layer by drawing in copper foil wheat, the longitudinally wrapped of copper foil may be implemented, it both can be real
It the problem of showing the preferable feature of the stability of longitudinal wrap structure, and being attenuated during transmission to avoid signal, plays
Good shield effectiveness；Also, since the thickness very little of glue adhesive layer is passing through the Conductivity very little of copper foil
After oven heat, the glue on glue adhesive layer can melt completely within a very short time, be solidificated in core wire surface and copper foil is led
Electric face and copper foil wheat are drawn between layer, and structure is more compact, improves the structural stability of high frequency cable；Simultaneously because on copper foil
Provided with glue, so that the region that copper foil wheat draws conducting surface on layer and ground contact is good and copper foil wheat draws layer to be overlapped
Can be more firm, the structural stability of high frequency cable is further enhanced, even if contacting still good after the test such as bending
It is good, the shielding properties of high frequency cable is improved, the stability of the signal transmission of wire rod is improved.
It should be noted that referring to Fig. 9, the step by heat wheat draw along the direction of the parallel lines pair carry out around
Bao Hou, forms hot melt wheat and housing is drawn to be placed on the lateral wall of the sets of parallel, to be formed there is hot melt wheat to draw housing
Parallel lines pair operation in further include following steps:
S510, it draws layer in the form of spiral winding the first hot melt wheat, and is wrapped along direction of the parallel lines to extension
The parallel lines pair are covered, toasts using infrared oven and then cools and solidifies, form the parallel lines drawn with one layer of hot melt wheat
It is right；
S520, by with one layer hot melt wheat draw parallel lines to S to canoe carry out around package operation so that in band
The parallel lines for having one layer of hot melt wheat to draw draw layer to the second hot melt wheat is formed on upper lateral wall, then using infrared oven baking
Cooling and solidifying forms the parallel lines pair drawn with the double-deck hot melt wheat.
In this way, can be further improved the structural stability of high frequency wire.
Referring to Fig. 10, further including following steps after obtaining the operation of high frequency cable of longitudinal wrap viscosity copper foil:
S700, by parallel lines described in multiple groups to carry out stranding operation, i.e., by each parallel lines to the side of spiral winding
Formula forms a high frequency cable；
S800, litzendraht wire is coated on the lateral wall of the high frequency cable, forms litzendraht wire set；
S900, will insulation be outer is used spiral winding technique and is wound packet in the litzendraht wire set with high frequency cable
Operation is covered, after heat aging operation, obtains the high frequency harness with multiple groups parallel lines pair.
So, it is ensured that the efficiency of transmission of high frequency cable improves the structural stability of high frequency cable.
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 frequency cable of longitudinal wrap viscosity copper foil, and glue adhesive layer is arranged on layer by drawing in copper foil wheat,
The longitudinally wrapped of copper foil may be implemented, the preferable feature of the stability of longitudinal wrap structure not only may be implemented, but also can exist to avoid signal
The problem of being attenuated during transmission plays good shield effectiveness；Also, due to the thickness very little of glue adhesive layer,
For the Conductivity very little of copper foil, after oven heat, the glue on glue adhesive layer can be within a very short time
Melt completely, is solidificated in core wire surface and copper foil conducting surface and copper foil wheat is drawn between layer, structure is more compact, improves high-frequency electrical
The structural stability of cable；Simultaneously because glue is provided on copper foil, so that copper foil wheat draws the conducting surface and ground contact on layer
Well and copper foil wheat draws the region of layer overlapping can also be more firm, further enhances the structural stability of high frequency cable, i.e.,
Make after the test such as bending, contact is still good, improves the shielding properties of high frequency cable, and the signal for improving wire rod passes
Defeated stability.
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 frequency cable of longitudinal wrap viscosity copper foil characterized by comprising protection overcoat and at least one set of parallel lines pair,
It is external that the protection overcoat is placed on the parallel lines；
In the parallel lines pair, the parallel lines are to including core component, sticky copper foil-clad film and hot melt Mai Laping
Set is covered, the viscosity copper foil-clad film is coated on outside the core component, and a side of the sticky copper foil-clad film is tight
On the closely connected another side for being attached to the sticky copper foil-clad film, the hot melt wheat draws housing to be placed on the sticky copper foil packet
On the lateral wall of overlay film；
The core component includes ground wire and two core wires, the lateral wall of two core wires closely, and the ground wire
Interval is respectively arranged between two core wires；
The viscosity copper foil-clad film includes glue adhesive layer and copper foil wheat draws layer, and the copper foil wheat is drawn and is provided with conduction on layer
Face, the glue adhesive layer note invest the copper foil wheat and draw on the conducting surface of layer, the ground wire and two core wires point
It is not adhered on the another side of the glue adhesive layer far from the conducting surface.
2. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 1, which is characterized in that the hot melt wheat draws housing
Layer and the second hot melt wheat is drawn to draw layer including the first hot melt wheat, the first hot melt wheat draws layer to be coated on the copper foil wheat and draws outside layer,
The second hot melt wheat draws layer to be coated on the first hot melt wheat and draws outside layer.
3. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 1, which is characterized in that the parallel lines are to further including
Lettering layer, the lettering layer note invest on the glue adhesive layer.
4. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 1, which is characterized in that the protection overcoat include by
The interior aluminium foil wheat to the setting of outer sequence draws layer, litzendraht wire set and the outer quilt of insulation.
5. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 1, which is characterized in that the parallel lines are to being provided with
Two groups, the lateral wall of parallel lines pair described in two groups closely, and the lateral wall of parallel lines pair described in two groups respectively with institute
The inner sidewall for stating protection overcoat abuts, and parallel lines described in two groups are to being arranged in parallel in the protection overcoat.
6. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 1, which is characterized in that the high frequency cable further includes
Center-filled wire body and four groups of parallel lines pair connect head and the tail per two adjacent parallel lines, and each parallel lines
Pair lateral wall respectively with the lateral wall of the center-filled wire body closely.
7. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 6, which is characterized in that the protection overcoat further includes
Buffer strip body, the buffer strip body are coated on the lateral wall of each parallel lines pair.
8. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 1, which is characterized in that the high frequency cable further includes
Center line layer and six groups of parallel lines pair, each parallel lines to the central axis of the center line layer circumferentially permutation be distributed,
And the lateral wall of each parallel lines pair respectively with the lateral wall of the center line layer closely.
9. the high frequency cable of longitudinal wrap viscosity copper foil according to claim 8, which is characterized in that the center line layer includes anti-
Protecting band body and two groups of parallel lines pair, the buffer zone body be coated on two groups described in parallel lines it is external, and the buffer zone body
Lateral wall also with the lateral wall of parallel lines pair described in six groups closely.
10. the high frequency cable of longitudinal wrap viscosity copper foil described according to claim 1~any one of 9, a kind of high frequency cable
Production technology, which comprises the steps of:
Conductive glue is uniformly applied to copper foil wheat to draw on layer, to form the sticky copper foil-clad film with conductive glue；
Two core wires are straightened, and the lateral wall for making two core wires is closely, are placed on two after then ground wire is straightened
Interval between core wire described in root, to form cord assembly；
By the one side with conductive glue of the sticky copper foil-clad film be longitudinally coated on the ground wire lateral wall and two
On the lateral wall of the core wire, and a side of the sticky copper foil-clad film is closely attached to the sticky copper foil-clad film
Another side on, with formed have two core wires sets of parallel；
The sets of parallel is heated by infrared oven, the thawing so that conductive glue is activated, after cooling
Curing conductive glue, so that the viscosity copper foil-clad film is coated on the lateral wall of ground wire and two core wires；
Hot melt wheat is drawn carry out along the direction of the parallel lines pair it is wrapped after, forming hot melt wheat, to draw housing to be placed on described flat
On the lateral wall of line group, to form the parallel lines pair that there is hot melt wheat to draw housing；
Protection overcoat is drawn using spiral winding technique in the hot melt wheat and is wound cladding operation outside housing, is heating and curing
After operation, the high frequency cable of longitudinal wrap viscosity copper foil is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026593.1A CN109830331A (en) | 2019-01-11 | 2019-01-11 | The high frequency cable and its production technology of longitudinal wrap viscosity copper foil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026593.1A CN109830331A (en) | 2019-01-11 | 2019-01-11 | The high frequency cable and its production technology of longitudinal wrap viscosity copper foil |
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| CN109830331A true CN109830331A (en) | 2019-05-31 |
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| CN201910026593.1A Pending CN109830331A (en) | 2019-01-11 | 2019-01-11 | The high frequency cable and its production technology of longitudinal wrap viscosity copper foil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021237842A1 (en) * | 2020-05-27 | 2021-12-02 | 常熟市景弘盛通信科技股份有限公司 | High-frequency cable with stable structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691081A (en) * | 1986-04-16 | 1987-09-01 | Comm/Scope Company | Electrical cable with improved metallic shielding tape |
| CN201359878Y (en) * | 2009-01-13 | 2009-12-09 | 昆山信昌电线电缆有限公司 | Symmetric paralleled network cable |
| CN209433905U (en) * | 2019-01-11 | 2019-09-24 | 乐庭电线工业（惠州）有限公司 | The high frequency cable of longitudinal wrap viscosity copper foil |
-
2019
- 2019-01-11 CN CN201910026593.1A patent/CN109830331A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691081A (en) * | 1986-04-16 | 1987-09-01 | Comm/Scope Company | Electrical cable with improved metallic shielding tape |
| CN201359878Y (en) * | 2009-01-13 | 2009-12-09 | 昆山信昌电线电缆有限公司 | Symmetric paralleled network cable |
| CN209433905U (en) * | 2019-01-11 | 2019-09-24 | 乐庭电线工业（惠州）有限公司 | The high frequency cable of longitudinal wrap viscosity copper foil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021237842A1 (en) * | 2020-05-27 | 2021-12-02 | 常熟市景弘盛通信科技股份有限公司 | High-frequency cable with stable structure |
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Effective date of registration: 20210702 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. |
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