CN209822367U - Symmetrical high-frequency wire - Google Patents
Symmetrical high-frequency wire Download PDFInfo
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- CN209822367U CN209822367U CN201920594609.4U CN201920594609U CN209822367U CN 209822367 U CN209822367 U CN 209822367U CN 201920594609 U CN201920594609 U CN 201920594609U CN 209822367 U CN209822367 U CN 209822367U
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- frequency wire
- metal shielding
- shielding layer
- wire rod
- layer
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Abstract
The utility model discloses a symmetry formula high frequency wire rod, including parallel line pair, inlayer protection component, earth connection line pair and outer sheath spare, inlayer protection component includes first metallic shield, first around band and second metallic shield, and the vertical cladding in a side of first metallic shield is on the lateral wall of parallel line pair, and first around the band with spiral winding mode cladding on the another side of parallel line pair is kept away from on first metallic shield with spiral winding's mode cladding, the vertical cladding in second metallic shield is on the first lateral wall around the band. The utility model relates to a symmetrical formula high frequency wire rod through setting up first around band and second metal shielding layer, increases the compliance and the reinforcing wire rod structural stability of high frequency wire rod, makes the anti extreme environment's of high frequency wire rod ability reinforcing to can strengthen the shielding effect of high frequency wire rod, in order to obtain better decay. The high-frequency wire is good in flexibility, the problem that the conductor is easy to break after being bent is avoided, and the service life of the high-frequency wire is prolonged.
Description
Technical Field
The utility model relates to a high frequency line field especially relates to a symmetrical formula high frequency wire rod.
Background
The high frequency line (high frequency signal line) is a connection line for transmitting high frequency signals. The high-frequency line is generally a shielded line, and the conductor has impedance to cause some loss during signal transmission, so the high-frequency line is widely used, and a common cable television line is one of the high-frequency lines. Conditions for using the high-frequency line: the working temperature of the high-frequency cable is allowed to be in the range of-40 ℃ to +65 ℃, and the relative humidity is as follows: the temperature is 98 percent at the temperature of +40 ℃, and the laying temperature is not lower than-15 ℃ during installation. Field of use of high frequency lines: high frequency cables are suitable for transmitting radio frequency signals in radio communication equipment and related wireless electronic devices employing similar technology.
However, the existing shielding mode of 25G and 40G high-frequency wires is single-metal shielding longitudinal wrapping or single-metal shielding wrapping, and the shielding effect of the high-frequency wires made of the two shielding structures is poor, so that the attenuation of the wires is serious; in addition, the existing high-frequency wire is poor in flexibility and easy to bend, so that the conductor is broken, and the service life of the high-frequency wire is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing a symmetrical formula high frequency wire rod, through setting up first around band and second metallic shield, increase the compliance and the reinforcing wire rod structural stability of high frequency wire rod, make the anti extreme environment's of high frequency wire rod ability reinforcing to can strengthen the shielding effect of high frequency wire rod, in order to obtain better decay.
The purpose of the utility model is realized through the following technical scheme:
a symmetric high-frequency wire comprising:
the pair of parallel lines is connected to,
the inner layer protection assembly comprises a first metal shielding layer, a first wrapping tape and a second metal shielding layer, one side face of the first metal shielding layer is longitudinally coated on the outer side wall of the parallel line pair, the first wrapping tape is coated on the other side face, far away from the parallel line pair, of the first metal shielding layer in a spiral winding mode, and the second metal shielding layer is longitudinally coated on the outer side wall of the first wrapping tape;
the grounding wire pair comprises two grounding wires which are respectively arranged on the second metal shielding layer and are symmetrically arranged along the central axis of the parallel wire pair; and
the outer layer protection sleeve piece comprises at least one layer of second wrapping tape, and the second wrapping tape is spirally wound outside the second metal shielding layer and the two ground wires.
In one embodiment, the parallel wire pair comprises two transmission cores, the two transmission cores are arranged in parallel, and the outer side walls of the two transmission cores are tightly close to each other.
In one embodiment, a side surface of the first metal shielding layer is longitudinally coated on the outer side wall of the parallel line pair along the extending direction of each transmission core wire.
In one embodiment, in one of the transmission cores, the transmission core includes a conductor and an insulating sheath covering the conductor.
In one embodiment, the outer side walls of the two insulating outer sleeves are closely adjacent.
In one embodiment, the center lines of the two ground wires and the center lines of the two transmission core wires are on the same straight line, and the two ground wires are symmetrically arranged with the symmetry axis of the two transmission core wires.
In one embodiment, the first wrapping tape is a first wrapping polyester tape.
In one embodiment, the second wrapping tape is a second wrapping polyester tape.
In one embodiment, one side of the first metal shielding layer is closely attached to the other side of the first metal shielding layer.
In one embodiment, the outer-layer protective sheath further comprises a printing layer, and the printing layer is arranged on the second wrapping tape.
The utility model discloses compare in prior art's advantage and beneficial effect as follows:
the utility model relates to a symmetrical formula high frequency wire rod through setting up first around band and second metal shielding layer, increases the compliance and the reinforcing wire rod structural stability of high frequency wire rod, makes the anti extreme environment's of high frequency wire rod ability reinforcing to can strengthen the shielding effect of high frequency wire rod, in order to obtain better decay. The high-frequency wire is good in flexibility, the problem that the conductor is easy to break after being bent is avoided, and the service life of the high-frequency wire is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a symmetrical high-frequency wire according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a symmetrical high-frequency wire according to another embodiment of the present invention;
fig. 3 is a signal attenuation test chart of the symmetric high-frequency wire rod of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a symmetrical high-frequency wire includes: the protection device comprises a parallel line pair 100, an inner layer protection component 200, a ground line pair 300 and an outer layer protection component 400, wherein the parallel line pair 100 is used for transmitting data; the inner layer protection component 200 is used for protecting the core wire; the ground line pair 300 is used to realize grounding; the outer protective sheath 400 is used to protect the core wire and the ground wire, and to improve the structural stability of the high-frequency wire and to extend the service life of the high-frequency wire.
Referring to fig. 1 and 2, the inner layer protection assembly 200 includes a first metal shielding layer 210, a first wrapping tape 220 and a second metal shielding layer 230, wherein one side surface of the first metal shielding layer 210 is longitudinally wrapped on the outer side wall of the parallel wire pair 100, the first wrapping tape 220 is wrapped on the other side surface of the first metal shielding layer 210 away from the parallel wire pair 100 in a spiral winding manner, and the second metal shielding layer 230 is longitudinally wrapped on the outer side wall of the first wrapping tape 220. It should be noted that the first metal shielding layer 210 is used for covering the parallel line pair, so as to prevent the parallel line pair from shifting and improve the structural stability; the first wrapping tape 220 is used for increasing the softness of the wire and enhancing the structural stability of the wire, so that the extreme environment resistance of the wire is enhanced; the second metal shielding layer 230 enhances the shielding effect of the wire to obtain better attenuation.
So, through setting up first around band and second metal shielding layer, increase the compliance and the reinforcing wire rod structural stability of high frequency wire rod, make the anti extreme environment's of high frequency wire rod ability reinforcing to can strengthen the shielding effect of high frequency wire rod, in order to obtain better decay. The high-frequency wire is good in flexibility, the problem that the conductor is easy to break after being bent is avoided, and the service life of the high-frequency wire is prolonged.
Referring to fig. 1 and 2, the ground line pair 300 includes two ground lines 310, the two ground lines 310 are respectively disposed on the second metal shielding layer 230, and the two ground lines 310 are symmetrically disposed about a central axis of the parallel line pair 100. It should be noted that the ground wire is used for grounding.
Referring to fig. 1 and 2, the outer protective sheath 400 includes at least one second wrapping tape 410, and the second wrapping tape 410 is spirally wound outside the second metal shielding layer 230 and the two ground wires 310. It should be noted that the second wrapping tape 410 is used for covering the whole structure, so that the structural stability of the high-frequency wire can be improved.
It should be noted that, referring to fig. 2, the parallel line pair 100 includes two transmission cores 110, the two transmission cores are arranged in parallel, and the outer sidewalls of the two transmission cores are tightly close to each other. By providing two transmission cores 110 in this manner, high-frequency signals such as 25G and 40G can be transmitted.
It should be noted that one side surface of the first metal shielding layer is longitudinally coated on the outer side wall of the parallel line pair along the extending direction of each transmission core wire. Thus, the shielding effect can be further improved.
Please refer to fig. 2, in one transmission core, the transmission core 110 includes a conductor 111 and an insulating sheath 112, and the insulating sheath covers the conductor. Further, the outer side walls of the two insulating outer sleeves are closely adjacent to each other. As such, the conductor 111 is used to transmit data; the insulating outer sleeve 112 is used for protecting the conductor from being damaged, so that the problems of breakage and fracture are avoided, and the service life of the high-frequency wire rod can be prolonged.
The center lines of the two ground wires and the center lines of the two transmission core wires are on the same straight line, and the two ground wires are symmetrically arranged with respect to the symmetry axis of the two transmission core wires. So, can improve the structural stability of high frequency wire rod, and then can improve high frequency transmission's stability.
In this embodiment, the first wrapping tape is a first wrapping polyester tape. The second is around chartered polyester area. So, through setting up around package polyester area, can improve the compliance of wire rod.
Please refer to fig. 1, one side of the first metal shielding layer is closely attached to the other side of the first metal shielding layer. Thus, by providing the overlapping portion, the structural stability can be further improved.
It should be noted that the outer-layer protective sheath 400 further includes a printing layer 420, and the printing layer is disposed on the second wrapping tape. Thus, the printing layer can play a role in marking.
Through the parallel package of indulging of first metal shielding layer, first package polyester area around the package, the parallel package of indulging of second metal shielding layer, two ground wires, second around package polyester area around the package cladding mode strengthened shielded homogeneity and uniformity, have the promotion effect well to the decay of wire rod.
The shielding core wires are longitudinally wrapped by the shielding wrapping tape, the two ground wires are parallelly fixed on the outer layer of the shielding wrapping tape through the 1-2 layers of wrapping tapes, the ground wires are symmetrically arranged on two sides of the wire rods, so that the shielding balance is enhanced, the operability during assembly is improved, the transmission performance can meet the requirement of high frequency (larger than or equal to 25GHz), and the attenuation of the latest structure is generally 1 db-2 db better than that of the existing structure under the same frequency point under the comparable condition, please refer to fig. 3 for comparison. The utility model discloses a high frequency wire rod remain stable physical structure and electrical property to realize finished product wire rod compliance and processing practicality, satisfy multiple processing demand, very big improvement popularization nature.
The utility model discloses compare in prior art's advantage and beneficial effect as follows:
the utility model relates to a symmetrical formula high frequency wire rod through setting up first around band and second metal shielding layer, increases the compliance and the reinforcing wire rod structural stability of high frequency wire rod, makes the anti extreme environment's of high frequency wire rod ability reinforcing to can strengthen the shielding effect of high frequency wire rod, in order to obtain better decay. The high-frequency wire is good in flexibility, the problem that the conductor is easy to break after being bent is avoided, and the service life of the high-frequency wire is prolonged.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A symmetric high-frequency wire, comprising:
the pair of parallel lines is connected to,
the inner layer protection assembly comprises a first metal shielding layer, a first wrapping tape and a second metal shielding layer, one side face of the first metal shielding layer is longitudinally coated on the outer side wall of the parallel line pair, the first wrapping tape is coated on the other side face, far away from the parallel line pair, of the first metal shielding layer in a spiral winding mode, and the second metal shielding layer is longitudinally coated on the outer side wall of the first wrapping tape;
the grounding wire pair comprises two grounding wires which are respectively arranged on the second metal shielding layer and are symmetrically arranged along the central axis of the parallel wire pair; and
the outer layer protection sleeve piece comprises at least one layer of second wrapping tape, and the second wrapping tape is spirally wound outside the second metal shielding layer and the two ground wires.
2. The symmetric high-frequency wire according to claim 1, wherein the parallel wire pair comprises two transmission cores, the two transmission cores are arranged in parallel with each other, and outer sidewalls of the two transmission cores are tightly close together.
3. The symmetric high-frequency wire according to claim 2, wherein a side surface of the first metal shield layer is coated longitudinally on an outer side wall of the parallel line pair in an extending direction of each transmission core.
4. The symmetric high-frequency wire according to claim 2, wherein in one of the transmission cores, the transmission core includes a conductor and an insulating sheath that covers the conductor.
5. The symmetric high-frequency wire according to claim 4, wherein the outer side walls of the two insulating jackets are closely adjacent to each other.
6. The symmetric high-frequency wire according to claim 2, wherein the center lines of the two ground lines and the center lines of the two transmission cores are on the same straight line, and the two ground lines are disposed symmetrically with respect to the symmetry axis of the two transmission cores.
7. The symmetric high-frequency wire rod of claim 1, wherein the first wrapping tape is a first wrapping polyester tape.
8. The symmetric high-frequency wire rod of claim 1, wherein the second wrapping tape is a second wrapping polyester tape.
9. The symmetric high-frequency wire rod as claimed in claim 1, wherein one side of the first metal shielding layer is closely attached to the other side of the first metal shielding layer.
10. The symmetrical high-frequency wire according to claim 1, wherein the outer-layer protective sheath further comprises a lettering layer, and the lettering layer is arranged on the second wrapping tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594609.4U CN209822367U (en) | 2019-04-26 | 2019-04-26 | Symmetrical high-frequency wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594609.4U CN209822367U (en) | 2019-04-26 | 2019-04-26 | Symmetrical high-frequency wire |
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| Publication Number | Publication Date |
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| CN209822367U true CN209822367U (en) | 2019-12-20 |
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| CN201920594609.4U Active CN209822367U (en) | 2019-04-26 | 2019-04-26 | Symmetrical high-frequency wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649108A (en) * | 2021-11-23 | 2022-06-21 | 三元科技（深圳）有限公司 | Differential high-speed cable, jig for producing differential high-speed cable and process |
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2019
- 2019-04-26 CN CN201920594609.4U patent/CN209822367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649108A (en) * | 2021-11-23 | 2022-06-21 | 三元科技（深圳）有限公司 | Differential high-speed cable, jig for producing differential high-speed cable and process |
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Effective date of registration: 20210709 Address after: 516029 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Patentee after: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. Address before: 516006 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |