CN210429343U - Anti-bending HDMI wire - Google Patents
Anti-bending HDMI wire Download PDFInfo
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- CN210429343U CN210429343U CN201921453844.6U CN201921453844U CN210429343U CN 210429343 U CN210429343 U CN 210429343U CN 201921453844 U CN201921453844 U CN 201921453844U CN 210429343 U CN210429343 U CN 210429343U
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Abstract
The utility model discloses an anti-bending HDMI line, the anti-bending HDMI line comprises a plurality of core wires and a protective layer sleeved outside the core wires, the protective layer comprises an aluminum foil, a braid and a sheath which are arranged from inside to outside in sequence, and the core wires comprise a signal transmission wire group, a PE wire group and an external ground wire; the signal transmission line group comprises a first core material and a plurality of signal transmission lines wound on the surface of the first core material; a plurality of signal transmission lines wound on the surface of the first core material form a plurality of repeated and continuous first winding units; a plurality of signal transmission lines that include in the first winding unit twine side by side according to the same angle to the interval between the adjacent first winding unit is 2 ~ 4 times of single first winding unit width, will have sufficient space of buckling like this between each adjacent first winding unit, when the HDMI line of countering buckling buckles, will increase the actual width of first winding unit based on the space of buckling, make the HDMI line of countering buckling have higher anti-buckling performance.
Description
Technical Field
The utility model relates to a HDMI wire rod field, in particular to anti HDMI line of buckling.
Background
The HDMI cable is an abbreviation of high definition multimedia interface cable, and is capable of transmitting uncompressed high definition video and multi-channel audio data with high quality, with a maximum data transmission speed of 5 Gbps. Meanwhile, the digital-to-analog or analog-to-digital conversion is not needed before signal transmission, and the transmission of the video-audio signal with the highest quality can be ensured.
For example, when the HDMI cable is used to connect a notebook computer in a conference room and a projector main unit, the HDMI cable needs to be frequently inserted and pulled out.
In order to solve the above problems, the patent of application No. 201220609213.0 provides a novel super-strong bending-resistant and bending-resistant conductive wire, which specifically winds a copper wire on the outer side of a breakage-resistant wire conductor, and the winding manner is a thread rotation type winding manner. Through the structure, the bending resistance of the conductive wire can be improved, and the conductive wire can be repeatedly folded and bent for more than million times. Although the prior art achieves the effect of improving the bending resistance to a certain extent, in an actual product, the use environment is complex and changeable, and the bending mode and the bending times are different, so that the bending resistance of the actual product in the real environment has a larger difference from the bending resistance in the test environment.
Therefore, how to apply the structure of the conductive wire to the HDMI cable to improve the anti-bending performance and ensure the normal use of the HDMI cable is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an anti HDMI line of buckling can solve among the prior art HDMI line and buckle the problem that easily damages many times.
In a first aspect, an embodiment of the present invention provides an anti-bending HDMI cable, including a plurality of core wires and a protective layer sleeved outside the core wires, wherein the protective layer includes an aluminum foil, a braid and a sheath, which are sequentially disposed from inside to outside, and is characterized in that the core wires include a signal transmission wire set, a PE wire set and an external ground wire;
the signal transmission line group comprises a first core material and a plurality of signal transmission lines wound on the surface of the first core material; a plurality of signal transmission lines wound on the surface of the first core material form a plurality of repeated and continuous first winding units; the plurality of signal transmission lines included in the first winding units are wound side by side according to the same angle, and the distance between every two adjacent first winding units is 2-4 times of the width of a single first winding unit; each signal transmission line comprises a twisted-pair signal line group, an internal ground wire and a heat-sealing aluminum foil layer used for wrapping the twisted-pair signal line group and the internal ground wire.
Furthermore, the winding angle of the first winding unit and the first core material form an included angle of 30-60 degrees.
Further, the PE line group comprises a second core material and a plurality of power lines wound on the surface of the second core material; a plurality of power lines wound on the surface of the second core material form a plurality of repeated and continuous second winding units; the plurality of power lines included in the second winding units are wound side by side at the same angle, and the distance between every two adjacent second winding units is 2-4 times of the width of the single second winding unit.
Furthermore, the winding angle of the second winding unit and the second core material form an included angle of 30-60 degrees.
Further, the power line comprises a conductive core material with a set line diameter, an insulating layer coated outside the conductive core material and an isolating layer positioned between the insulating layer and the conductive core material.
Further, the signal transmission line group comprises 4 signal transmission lines, and the 4 signal transmission lines are wound on the surface of the first core material side by side.
Further, the PE line group includes 7 power lines, and the 7 power lines are wound side by side on the surface of the second core material.
Further, the PE line group includes a first PE line subgroup and a second PE line subgroup;
the first PE wire subgroup comprises a third core material and 4 power wires wound on the surface of the third core material; the 4 power lines wound on the surface of the third core material form a plurality of repeated and continuous third winding units; the 4 power lines included in the third winding units are wound side by side according to the same angle, and the distance between every two adjacent third winding units is 2-4 times of the width of a single third winding unit;
the second PE wire subgroup comprises a fourth core material and 3 power wires wound on the surface of the fourth core material; the 3 power lines wound on the surface of the fourth core material form a plurality of repeated and continuous fourth winding units; the 3 power lines included in the fourth winding units are wound side by side at the same angle, and the distance between every two adjacent fourth winding units is 2-4 times of the width of a single fourth winding unit.
Further, the pitch between adjacent signal transmission lines in the first winding unit is 0.1-2 times the diameter of the signal transmission line.
Further, the pitch between adjacent power lines in the second winding unit is 0.1-2 times the diameter of the power line.
The embodiment of the utility model provides an anti HDMI line of buckling, it uses winding structural style side by side, and is adjacent through control interval isoparametric between the first winding unit for will have sufficient space of buckling between each adjacent first winding unit, it is right when anti HDMI line of buckling buckles, will be based on the space of buckling increases the actual width of first winding unit. Namely, when the anti-bending HDMI wire is subjected to bending operation, the anti-bending HDMI wire has enough bending margin to offset the requirement of the bending operation on the increase of the width of the first winding unit, so that the anti-bending performance of the HDMI wire is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of an anti-bending HDMI cable according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal transmission line group in an anti-bending HDMI cable provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a PE wire set in an anti-bending HDMI cable provided in embodiment 1 of the present invention;
fig. 4a is a schematic structural diagram of a first PE line subset in an anti-bending HDMI line provided in embodiment 2 of the present invention;
fig. 4b is a schematic structural diagram of a second PE line subset in the anti-bending HDMI line provided in embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an anti-bending HDMI cable according to an embodiment of the present invention. As shown in fig. 1, the anti-bending HDMI cable is composed of a plurality of core wires 10 and a protective layer 20 covering the plurality of core wires 10; the protective layer 20 includes an aluminum foil 21, a woven layer 22 and a sheath 23, which are sequentially disposed from inside to outside.
Among them, according to the function performed by the core wires, there can be divided into a signal transmission line group 100 for transmitting high frequency digital signals, a PE line group 200 for conducting electricity (the PE lines included in the PE line group are essentially electronic lines), and an external ground line 300 for grounding.
Please refer to fig. 1 and fig. 2, wherein fig. 2 is a schematic structural diagram of a signal transmission line set in an anti-bending HDMI cable according to embodiment 1 of the present invention. As shown in fig. 1 and 2, the signal transmission line group 100 includes a first core 101 and a plurality of signal transmission lines 102 wound on a surface of the first core 101; a plurality of signal transmission lines 102 wound on the surface of the first core 101 form a plurality of repeated and continuous first winding units 103; the plurality of signal transmission lines 102 included in the first winding unit 103 are wound side by side at the same angle, and the distance between adjacent first winding units 103 is 2-4 times the width of a single first winding unit 103; each signal transmission line 102 includes a twisted pair signal line set 1021, an internal ground line 1022, and a heat-sealed aluminum foil layer for wrapping the twisted pair signal line set 1021 and the internal ground line 1022.
The twisted pair signal line set 1021 includes two signal lines, which are respectively denoted as a first signal line 1021a and a second signal line 1021b, and the first signal line 1021a and the second signal line 1021b are twisted in a twisted pair manner. The heat-sealing aluminum foil layer is sequentially provided with an aluminum foil layer and a heat-sealing film layer from inside to outside.
The twisted-pair signal line set 1021 is formed by two signal lines in a twisted pair manner, so as to ensure normal transmission of signals. And adopt the heat-seal aluminium foil layer that comprises aluminium foil layer and heat-seal membrane layer in order to wrap up twisted pair signal line group 1021, not only can realize the function of electromagnetic shield and insulating parcel, the performance of bending resistance is better moreover.
The spacing (denoted by f in fig. 2) between the first winding units 103 is 2 to 4 times the width (denoted by e in fig. 2) of a single first winding unit 103.
Compared with the prior art, the utility model discloses a core improves the part and lies in: the distance between the adjacent first winding units 103 is 2-4 times of the width of the single first winding unit 103. So that each adjacent first winding unit 103 will have a sufficient bending space therebetween.
When the bending-resistant HDMI cable is bent, since there is a large bending space between the adjacent first winding units 103, the actual width of the first winding unit 130 will be increased based on the bending space. In other words, when the bending operation is performed on the anti-bending HDMI cable, the anti-bending HDMI cable has enough bending margin to offset the requirement of the bending operation for increasing the width of the first winding unit 103.
In the anti-bending HDMI wire, the first winding units 103 are repeated and continuous, and the distance between every two adjacent first winding units 103 is 2-4 times of the width of each first winding unit 103, so that the whole anti-bending HDMI wire has good anti-bending performance.
In addition, by adopting the above side-by-side winding manner, the actual size of the inner core wire 10 of the anti-bending HDMI cable is small, so the actual size of the first winding unit 103 is also small, and therefore, although the distance between the adjacent first winding units 103 is 2 to 4 times of the width of the single first winding unit 103, the distance between the adjacent first winding units 103 is also small, and the anti-bending HDMI cable is very long as the first winding unit 103 as a whole, so the finally obtained anti-bending HDMI cable has one bending space in all places in practice.
This is of great significance for the anti-bending HDMI cable, which means that the anti-bending HDMI cable has anti-bending performance virtually everywhere as a whole, and no matter which part of the anti-bending HDMI cable is bent, the anti-bending HDMI cable has a corresponding bending space for buffering.
Specifically, the distance between adjacent first winding units 103 should not be too small, nor too large. If the spacing between adjacent first winding units 103 is too small, they provide a small bending space, and may not meet the requirement of bending resistance. If the distance between the adjacent first winding units 103 is too large, the signal transmission lines connected between the adjacent first winding units 103 are arranged in the transverse direction and the distance between the signal transmission lines arranged in the transverse direction is too long, when the bending operation is performed, the signal transmission lines connected between the adjacent first winding units 103 have a large risk of wire breakage, and if the signal transmission lines are broken, the signal transmission function is lost because the entire anti-bending HDMI cable cannot transmit signals.
The utility model discloses through the experiment of the applicant numerous times prove, interval between adjacent first winding unit 103 can guarantee to provide great space of buckling for 2 ~ 4 times of first winding unit 103 width, reach anti buckling performance requirement, simultaneously to the signal transmission line between the adjacent first winding unit 103, it is unlikely to toward the too much angle of horizontal slope, and length is unlikely to the overlength, can avoid this part signal transmission line to take place the problem of broken string when buckling many times. For example, in practical implementation, the distance between adjacent first winding units 103 may be set to be 2.5 times the width of the first winding unit 103.
Through the embodiment of the utility model provides an anti HDMI line of buckling owing to set up a reasonable interval between adjacent first winding unit 103 for anti HDMI line of buckling is whole everywhere to have anti bending performance, even a certain position of the HDMI line of anti buckling carries out a lot of buckling, can not take place the broken string problem yet, thereby has improved the whole anti bending performance of anti HDMI line of buckling.
Further, as shown in fig. 2, the winding angle of the first winding unit 103 is 30 to 60 degrees with respect to the first core 101. The winding angle of the first winding unit 103 is 30 to 60 degrees with respect to the first core 101, which can be understood as an angle between each signal transmission line 102 and the horizontal line (acute angle) when the first winding unit 103 is wound around the first core 101 by first placing the first core 101 horizontally.
In the present application, the winding angle of the first winding unit 103 should not be too large, and should not be too small. If the winding angle of the first winding unit 103 is too large, the signal transmission line connecting the adjacent first winding units 103 may be inclined to the horizontal direction, which affects the anti-bending performance of the anti-bending HDMI line. If the winding angle of the first winding unit 103 is too small, the signal transmission line of the first winding unit 103 can incline to the horizontal direction, which affects the bending resistance of the signal transmission line of the first winding unit, so that when the winding angle is set, the bending resistance of the signal transmission line of the first winding unit 103 and the bending resistance of the signal transmission line between the first winding units 103 should be concerned, in the embodiment of the present invention, experiments conducted by the applicant for numerous times prove that the winding angle is set to be 30-60 degrees included angle between the first winding unit 103 and the first core 101, which can ensure that the bending-resistant HDMI cable can keep better bending resistance on the whole, and can not lead to the reduction of the bending resistance of a certain part.
Further, in order to further improve the anti-bending performance of the anti-bending HDMI cable, the PE cable set 200 may also adopt a structure similar to that of the signal transmission cable set 100. As shown in fig. 3, wherein fig. 3 is a schematic structural diagram of a PE line group of a signal in an anti-bending HDMI cable provided in embodiment 1 of the present invention, as a first embodiment of the PE line group, the PE line group 200 includes a second core material 201 and a plurality of power lines 202 wound on a surface of the second core material 201; the power lines 202 wound on the surface of the second core material 202 form a plurality of repeated and continuous second winding units 203; the plurality of power lines 202 included in the second winding unit 203 are wound side by side at the same angle, and the distance between adjacent second winding units 203 is 2-4 times the width of a single second winding unit 203.
After the PE wire set 200 adopts a winding structure similar to the signal transmission wire set, when the distance between the adjacent second winding units 203 is 2 to 4 times the width of the second winding unit 203, a larger bending space can be ensured to meet the requirement of bending resistance, and meanwhile, for the power line between the adjacent second winding units 203, the power line is not inclined to a too large angle in the transverse direction, and the length is not too long, so that the problem of wire breakage of the power line during multiple bending can be avoided. For example, in practical implementation, the distance between adjacent second winding units 203 may be set to be 2.5 times the width of the second winding units 203.
Further, as shown in fig. 3, the winding angle of the second winding unit 203 is 30 to 60 degrees with respect to the second core material 201.
The winding angle of the first winding unit 103 is 30 to 60 degrees with respect to the first core 101, which can be understood as an included angle (acute angle) between each signal transmission line 102 and the horizontal line when the first winding unit 103 is wound around the first core 101 by first placing the first core 101 horizontally.
In the present application, the winding angle of the second winding unit 203 should not be too large, and should not be too small. If the winding angle of the second winding unit 203 is too large, the power line connecting the adjacent second winding units 203 may be inclined to the horizontal direction, which may affect the anti-bending performance of the anti-bending HDMI line. If the winding angle of the second winding unit 203 is too small, the power line of the second winding unit 203 can incline to the horizontal direction, which affects the bending resistance of the power line of the first winding unit, so when the winding angle is set, the bending resistance of the power line of the second winding unit 203 should be concerned, and the bending resistance of the power line between the second winding units 203 should be concerned.
In some embodiments, the power line 103 includes a conductive core material having a predetermined line diameter, an insulating layer coated outside the conductive core material, and an isolation layer between the insulating layer and the conductive core material.
The specific selection of the power supply line 103 to be used may be determined according to the needs of the actual situation. For example, larger wire diameters have better electrical conductivity and reduce electromagnetic interference caused during power transmission through a suitable isolation layer.
In some embodiments, as shown in fig. 1-3, the signal transmission line group 100 includes 4 signal transmission lines 102, and the 4 signal transmission lines 102 are wound side by side on the surface of the first core 101. The PE line group 200 includes 7 power lines 202, and the 7 power lines 202 are wound side by side on the surface of the second core 201. By arranging 4 signal transmission lines 102, each signal transmission line 102 includes a twisted pair signal line set 1021 and an internal ground line 1022, and the twisted pair signal line set 1021 includes two signal lines, so that the 4 signal transmission lines 102 include 8 signal lines and 4 internal ground lines 1022 in total (i.e., the 4 signal transmission lines 102 include 12 lines); and the anti-bending 20 lines of the HDMI line are formed by arranging 7 power lines 202, 12 lines included in the 4 signal transmission lines 102 and 1 peripheral ground line 300, and the standard of the HDMI interface specified in the HDMI specification is met.
In order to further improve the bending resistance of the first winding unit 103 and the second winding unit 203, the first winding unit 103 and the second winding unit 203 need to be structurally optimized. Specifically, the pitch between adjacent signal transmission lines 102 in the first winding unit 103 is 0.1-2 times the diameter of the signal transmission line 102; the pitch between adjacent power lines 202 in the second winding unit 203 is 0.1-2 times the diameter of the power lines 202.
This provides a bending space for the first winding unit 103 and the second winding unit 203 themselves. When the anti-bending HDMI cable is bent, a certain gap is formed between adjacent cables in the first winding unit 103 and the second winding unit 203, so that a bending space is provided for the adjacent cables, and the first winding unit 103 and the second winding unit 203 have certain anti-bending performance.
Of course, the pitch is not arbitrarily set. Too small a pitch may result in an inefficient damping in time and an increased risk of breakage of the thread between the first winding unit 103 and the second winding unit 203. An excessively large pitch would result in an excessively small winding angle of the wire in the middle of the first winding unit 103 and said second winding unit 203, which would also lead to an increased risk of breakage.
In the embodiment of the present invention, through numerous experiments by the applicant, it is creatively found that the pitch between adjacent signal transmission lines 102 in the first winding unit 103 is 0.1-2 times the diameter of the signal transmission line 102; the pitch between adjacent power wires 202 in the second winding unit 203 is 0.1-2 times the diameter of the power wires 202, so that the first winding unit 103 and the second winding unit 203 have better bending resistance. In a specific application scenario, the pitch between adjacent signal transmission lines 102 in the first winding unit 103 is 1 time the diameter of the signal transmission line 102; the pitch between the adjacent power supply lines 202 in the second winding unit 203 is 1 times the diameter of the power supply line 202, and the bending resistance is optimal.
Obviously, the cross section of the signal transmission line 102 or the power line 202 is generally circular, so the above mentioned pitch is also referred to as a diameter, but it is easy to be understood by those skilled in the art that other modified structures, such as polygonal structures, may be adopted when the cross section of the signal transmission line 102 or the power line 202 is also adopted, or other structures may be set according to the needs of the practical application. In the case where the signal transmission line 102 or the power supply line 202 has a cross section of these modified structures, the pitch between adjacent signal transmission lines 102 may be set to 0.1 to 2 times the width of the signal transmission line 102, and the pitch between adjacent power supply lines 202 may be set to 0.1 to 2 times the width of the power supply line 202.
Further, as shown in fig. 4a and 4b, fig. 4a is a schematic structural diagram of a first PE line subset in the anti-bending HDMI line provided in embodiment 2 of the present invention; fig. 4b is a schematic structural diagram of a second PE wire subset in the anti-bending HDMI cable according to embodiment 2 of the present invention, and as a second embodiment of the PE wire set, the PE wire set 200 includes a first PE wire subset and a second PE wire subset;
the first PE wire subgroup comprises a third core material 301 and 4 power wires 302 wound on the surface of the third core material 301; the 4 power lines 302 wound on the surface of the third core material 301 form a plurality of repeated and continuous third winding units 303; the 4 power lines included in the third winding unit 303 are wound side by side at the same angle, and the distance between adjacent third winding units 303 is 2-4 times the width of a single third winding unit 303;
the second PE wire subgroup comprises a fourth core material 401 and 3 power wires 402 wound on the surface of the fourth core material 401; the 3 power lines 402 wound on the fourth core surface 402 form a plurality of repeated and continuous fourth winding units 403; the 3 power lines 402 included in the fourth winding units 403 are wound side by side at the same angle, and the distance between adjacent fourth winding units 403 is 2-4 times the width of a single fourth winding unit 403.
In order to reduce the diameter of the PE line group 200, the PE line group may be divided into 2 lines for processing, which are a first PE line subgroup and a second PE line subgroup. The first PE wire subgroup comprises a third core material 301 and 4 power wires 302 wound on the surface of the third core material 301; the 4 power lines 302 wound on the surface of the third core material 301 form a plurality of repeated and continuous third winding units 303; the second PE wire subgroup comprises a fourth core material 401 and 3 power wires 402 wound on the surface of the fourth core material 401; the 3 power lines 402 wound around the fourth core surface 402 form a plurality of repeated and continuous fourth winding units 403.
In the process of forming the third winding unit 303 and the fourth winding unit 403, similar to the first embodiment of the PE line group, the winding units are formed, and the distance between adjacent winding units is 2 to 4 times the width of a single winding unit.
The utility model discloses a numerous experiments of applicant prove, interval between adjacent third winding unit 303 is 2 ~ 4 times of third winding unit 303 width, interval between adjacent fourth winding unit 403 is 2 ~ 4 times of fourth winding unit 403 width, can guarantee to provide great space of buckling, reach the anti performance requirement of buckling, simultaneously to the power cord between adjacent third winding unit 303 or the power cord between the adjacent fourth winding unit 403, it is unlikely to toward too much angle of horizontal slope, and length is unlikely to the overlength, can avoid this part power cord to take place the problem of broken string when buckling many times. For example, in a specific implementation, the distance between the adjacent third winding units 303 may be set to be 2.5 times the width of the third winding units 303, and the distance between the adjacent fourth winding units 403 may be set to be 2.5 times the width of the fourth winding units 403.
It should be noted that fig. 1-4 b are schematic structural diagrams drawn for convenience of illustration only, and in an actual product, the diameter of each core wire is very small, so in an actual product, the width of the first winding unit, the width of the second winding unit, the width of the third winding unit, and the width of the fourth winding unit, and the pitch between adjacent first winding units, the pitch between adjacent second winding units, the pitch between adjacent third winding units, and the pitch between adjacent fourth winding units are very small, so that the power lines or signal transmission lines between adjacent first winding units, between adjacent second winding units, between adjacent third winding units, and between adjacent fourth winding units do not cause too much inclination toward the core material direction, and can still maintain a preferable winding angle.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. An anti-bending HDMI wire comprises a plurality of core wires and a protective layer sleeved outside the core wires, wherein the protective layer comprises an aluminum foil, a woven layer and a sheath which are sequentially arranged from inside to outside;
the signal transmission line group comprises a first core material and a plurality of signal transmission lines wound on the surface of the first core material; a plurality of signal transmission lines wound on the surface of the first core material form a plurality of repeated and continuous first winding units; a plurality of signal transmission lines included in the first winding units are wound side by side according to the same angle, and the distance between every two adjacent first winding units is 2-4 times of the width of a single first winding unit; each signal transmission line comprises a twisted-pair signal line group, an internal ground wire and a heat-sealing aluminum foil layer used for wrapping the twisted-pair signal line group and the internal ground wire.
2. The anti-bending HDMI cable according to claim 1, wherein the winding angle of the first winding unit is 30-60 degrees to the first core material.
3. The anti-bending HDMI cable according to claim 2, wherein the PE cable group comprises a second core material and a plurality of power cables wound on the surface of the second core material; a plurality of power lines wound on the surface of the second core material form a plurality of repeated and continuous second winding units; the plurality of power lines included in the second winding units are wound side by side at the same angle, and the distance between every two adjacent second winding units is 2-4 times of the width of the single second winding unit.
4. The anti-bending HDMI line according to claim 3, wherein the winding angle of the second winding unit is 30-60 degrees to the second core material.
5. The anti-bending HDMI cable according to claim 3, wherein the power line comprises a conductive core material with a set cable diameter, an insulating layer coated outside the conductive core material, and an isolation layer between the insulating layer and the conductive core material.
6. The anti-bending HDMI line according to claim 4, wherein the signal transmission line group comprises 4 signal transmission lines, and the 4 signal transmission lines are wound on the surface of the first core material side by side.
7. The anti-bending HDMI line according to claim 4, wherein the PE line group comprises 7 power lines, and the 7 power lines are wound on the surface of the second core material side by side.
8. The bending-resistant HDMI line according to claim 4, wherein a pitch between adjacent signal transmission lines in the first winding unit is 0.1-2 times a diameter of the signal transmission line.
9. The kink-resistant HDMI cable of claim 4, characterized in that the pitch between adjacent power lines in the second winding unit is 0.1-2 times the power line diameter.
10. The kink-resistant HDMI cable of claim 2 wherein said PE line set comprises a first PE line subset, a second PE line subset;
the first PE wire subgroup comprises a third core material and 4 power wires wound on the surface of the third core material; the 4 power lines wound on the surface of the third core material form a plurality of repeated and continuous third winding units; 4 power lines included in the third winding units are wound side by side according to the same angle, and the distance between every two adjacent third winding units is 2-4 times of the width of a single third winding unit;
the second PE wire subgroup comprises a fourth core material and 3 power wires wound on the surface of the fourth core material; the 3 power lines wound on the surface of the fourth core material form a plurality of repeated and continuous fourth winding units; and 3 power lines included in the fourth winding units are wound side by side at the same angle, and the distance between every two adjacent fourth winding units is 2-4 times of the width of the single fourth winding unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921453844.6U CN210429343U (en) | 2019-09-03 | 2019-09-03 | Anti-bending HDMI wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921453844.6U CN210429343U (en) | 2019-09-03 | 2019-09-03 | Anti-bending HDMI wire |
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| CN210429343U true CN210429343U (en) | 2020-04-28 |
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| CN201921453844.6U Active CN210429343U (en) | 2019-09-03 | 2019-09-03 | Anti-bending HDMI wire |
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