CN219658447U - Novel low-crosstalk high-frequency LVDS cable for vehicle - Google Patents
Novel low-crosstalk high-frequency LVDS cable for vehicle Download PDFInfo
- Publication number
- CN219658447U CN219658447U CN202321119105.XU CN202321119105U CN219658447U CN 219658447 U CN219658447 U CN 219658447U CN 202321119105 U CN202321119105 U CN 202321119105U CN 219658447 U CN219658447 U CN 219658447U
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- cable
- core
- filling framework
- cross
- cross filling
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- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 239000004743 Polypropylene Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Insulated Conductors (AREA)
Abstract
The utility model provides a novel low-crosstalk high-frequency LVDS cable for a vehicle, which comprises four insulating wire cores and a cross filling framework, wherein the cross section of the cross filling framework is of a four-diamond structure, each side edge of the cross filling framework is provided with an arc-shaped groove matched with the outer diameter of the insulating wire core, each insulating wire core is attached to the corresponding arc-shaped groove, the cross filling framework and the four insulating wire cores are twisted together to form a cable core, an aluminum-plastic composite belt is arranged on the outer wall of the cable core, and a tin-plated metal wire layer is woven on the outer wall of the aluminum-plastic composite belt. The cross filling framework ensures that the cable has a stable structure, is matched with the aluminum-plastic composite belt and the braided tin-plated metal wire layer, can effectively reduce crosstalk interference, improves signal transmission quality, adopts the TPU sheath on the outer side of the cable core, can protect the cable from physical damage and chemical corrosion, and increases the stability and reliability of the cable.
Description
Technical Field
The utility model relates to the technical field of LVDS cables, in particular to a novel low-crosstalk high-frequency LVDS cable for a vehicle.
Background
LVDS (LowVoltageDifferentialSignaling) cable is a low level differential signaling technique. It transmits data by using two signals of opposite polarities, which enables data to be transmitted in a high-speed and stable manner. Due to its high-speed transmission and reliability, LVDS cables are widely used in the automotive, electronic, medical and aerospace industries.
In general, LVDS cable has been used as an important transmission mode in digital signal transmission, has been developed for a long time, and is widely used in fields of automobiles, electronic devices, industrial automation and the like, and market demands are continuously growing. In recent years, with the rise of technologies such as industry 4.0 and the internet of things, the signal transmission requirements for high speed, high quality and high stability are continuously improved, and the development of the LVDS cable technology is further promoted.
In the prior art, the LVDS cable for the automobile mainly adopts four wire cores to be twisted in an insulating way, the outer layer is generally coated with a layer of braid or aluminum foil to be used as a shield, but the middle of the LVDS cable is not filled or is filled in a round way, so that the space between the four wire cores is unstable, the cable structure of the LVDS cable is unstable, the outer layer of the cable is only coated with a layer of shielding layer, the LVDS cable is easily interfered by an external electromagnetic field, and the interference of the external electromagnetic field is easily caused due to the unstable space between the wire cores and the lack of shielding, so that signal interference, crosstalk and unstable signal transmission quality are caused.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a novel low-crosstalk high-frequency LVDS cable for a vehicle, which can keep the structure of the LVDS cable stable and can effectively reduce crosstalk interference.
The utility model is realized in the following way:
the utility model provides a novel low-crosstalk high-frequency LVDS cable for a vehicle, which comprises four insulating wire cores and a cross filling framework, wherein the cross section of the cross filling framework is of a four-diamond structure, each side edge of the cross filling framework is provided with an arc-shaped groove matched with the outer diameter of the insulating wire core, each insulating wire core is attached to the corresponding arc-shaped groove, the cross filling framework and the four insulating wire cores are twisted together to form a cable core, the outer wall of the cable core is provided with an aluminum-plastic composite belt, and the outer wall of the aluminum-plastic composite belt is woven with a tin-plated metal wire layer.
Further, a TPU sheath is covered outside the tinned wire layer.
Further, the cross filling framework is a foaming cross filling framework.
Further, each of the insulated wire cores comprises a conductor and a PP insulated wire core with a diameter of 1.2mm, wherein the PP insulated wire core is arranged outside the conductor.
The utility model has the advantages that: the cross filling framework ensures that the cable has a stable structure, is matched with the aluminum-plastic composite belt and the braided tin-plated metal wire layer, can effectively reduce crosstalk interference, improves signal transmission quality, adopts the TPU sheath on the outer side of the cable core, can protect the cable from physical damage and chemical corrosion, and increases the stability and reliability of the cable.
Drawings
The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional structure of an LVDS cable according to the present utility model.
FIG. 2 is a schematic diagram of a cross-filled framework structure of the present utility model.
The reference numerals in the figures illustrate:
1. a conductor; 2. a PP insulating layer; 3. cross filling skeleton; 31. an arc-shaped groove; 4. an aluminum-plastic composite belt; 5. tinning a metal wire layer; 6. and (3) a TPU sheath.
Detailed Description
Referring to fig. 1 to 2, the utility model provides a novel low-crosstalk high-frequency LVDS cable for a vehicle, which comprises four insulating wire cores, and further comprises a cross filling framework 3, wherein the cross section of the cross filling framework 3 is in a four-diamond structure, each side edge of the cross filling framework 3 is provided with an arc groove 31 matched with the outer diameter of the insulating wire core, each insulating wire core is attached to the corresponding arc groove 31, the cross filling framework 3 and the four insulating wire cores are twisted together to form a cable core, an aluminum-plastic composite belt 4 is arranged on the outer wall of the cable core, and a tin-plated metal wire layer 5 is woven on the outer wall of the aluminum-plastic composite belt 4.
Specifically, a TPU sheath 6 (polyurethane sheath) is covered on the outside of the tinned wire layer 5. The TPU sheath 6 has the characteristics of higher wear resistance, ageing resistance, high temperature resistance, chemical corrosion resistance and the like, and can effectively protect cables.
Specifically, the cross filling skeleton 3 is a foaming cross filling skeleton 3. The foaming cross filling skeleton 3 has a plurality of bubbles therein. The foaming cross filling framework 3 can improve the interference of the cross filling framework 3 on transmission performance, particularly the signal attenuation is obviously improved, and the cross filling framework 3 has a stable structure and stable transmission performance.
Specifically, each of the insulated cores is composed of a conductor 1 and a PP insulation layer 2 (polypropylene insulation layer) disposed outside the conductor 1, the core having a diameter of 1.2 mm. The conductor 1 is a 7/0.16 type conductor 1.
The traditional LVDS cable has the problems and defects of unstable core wire spacing, lack of shielding, easiness in interference, unstable signal transmission quality and the like. These problems and defects can lead to signal crosstalk, interference and unstable signal transmission quality, and affect the performance and stability of the whole system.
Aiming at the problems, the automobile LVDS cable adopts the central cross filling framework 3, is formed into a cable core by star twisting with four core wires, and is sequentially provided with the aluminum-plastic composite belt 4, the braided tin-plated metal wire layer 5 and the TPU sheath 6 at the outer side of the cable core. The following is a detailed description:
the cable core is formed by insulating wire cores of 1.20mm, which are formed by 7/0.16 conductors 1 and PP insulating layers 2, wherein the four insulating wire cores and a cross filling framework 3 are selected to form a cable core in a star-shaped mode, the cross filling framework 3 is provided with arc grooves 31 matched with the insulating wire cores, so that the cable core is stable in structure, a layer of aluminum-plastic composite belt 4 is wound on the cable core, and a layer of tinned metal wire is woven on the outer layer of the aluminum-plastic composite belt 4 so as to increase the anti-interference capability of the cable. The tinned wire is adhered to the aluminum foil and the filler cable to minimize electromagnetic interference. Finally, the outer surface of the cable is covered with TPU material to protect the cable from physical damage and chemical corrosion and to improve the strength and stability of the cable. The TPU sheath 6 has the characteristics of higher wear resistance, ageing resistance, high temperature resistance, chemical corrosion resistance and the like, and can effectively protect cables.
Through the mode, the automobile LVDS cable realizes the combination of the central cross filling framework 3 and the star-twisted four core wires, is more stable than the traditional solid round filling, adopts the shielding mode of aluminum foil (aluminum-plastic composite belt 4) and braiding (tinned metal wire layer 5) and the protection of the TPU sheath 6, can more effectively improve the anti-interference capability, strength and stability of the cable, and ensures the stability and reliability of signal transmission.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.
Claims (4)
1. The utility model provides a novel low-crosstalk high frequency LVDS cable for automobile, includes four insulation core, its characterized in that: the cable is characterized by further comprising a cross filling framework, the cross section of the cross filling framework is of a four-diamond structure, each side edge of the cross filling framework is provided with an arc-shaped groove matched with the outer diameter of each insulation wire core, each insulation wire core is attached to the corresponding arc-shaped groove, the cross filling framework and the four insulation wire cores are twisted together to form a cable core, the outer wall of the cable core is provided with an aluminum-plastic composite belt, and the outer wall of the aluminum-plastic composite belt is woven with a tin-plated metal wire layer.
2. The novel low crosstalk high frequency LVDS cable of claim 1, wherein: and a TPU sheath is covered outside the tinned metal wire layer.
3. The novel low crosstalk high frequency LVDS cable of claim 1, wherein: the cross filling framework is a foaming cross filling framework.
4. The novel low crosstalk high frequency LVDS cable of claim 1, wherein: each insulated wire core comprises a conductor and a PP insulated layer arranged outside the conductor, wherein the diameter of the PP insulated layer is 1.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321119105.XU CN219658447U (en) | 2023-05-10 | 2023-05-10 | Novel low-crosstalk high-frequency LVDS cable for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321119105.XU CN219658447U (en) | 2023-05-10 | 2023-05-10 | Novel low-crosstalk high-frequency LVDS cable for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219658447U true CN219658447U (en) | 2023-09-08 |
Family
ID=87879109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321119105.XU Active CN219658447U (en) | 2023-05-10 | 2023-05-10 | Novel low-crosstalk high-frequency LVDS cable for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219658447U (en) |
-
2023
- 2023-05-10 CN CN202321119105.XU patent/CN219658447U/en active Active
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