CN216212426U - Interference signal shielding wire and electronic display device - Google Patents
Interference signal shielding wire and electronic display device Download PDFInfo
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- CN216212426U CN216212426U CN202122468828.8U CN202122468828U CN216212426U CN 216212426 U CN216212426 U CN 216212426U CN 202122468828 U CN202122468828 U CN 202122468828U CN 216212426 U CN216212426 U CN 216212426U
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Abstract
The application provides an interference signal shielding line and an electronic display device. The interference signal shielding line includes: the base line group comprises a plurality of base lines, and the base lines are wrapped by a first shielding layer; the second shielding layer wraps the base line group; the metal braid layer wraps the second shielding layer; and the insulating layer is wrapped with the metal braided layer in sections to form a multi-section exposed area. The interference signal shielding wire provided by the application can effectively filter the interference signal generated in the signal transmission process on the ground, thereby achieving the purpose of shielding the interference signal.
Description
Technical Field
The utility model belongs to the technical field of electronic equipment, and particularly relates to an interference signal shielding wire and electronic display equipment.
Background
In electronic device applications, electronic signals are transmitted over communication lines, which are paths that ensure the transmission of information.
Wired communication lines are generally called electronic wires, and the carrier is mostly made of metal, such as copper wires. The conductor wrapped by the conductor outside the electronic wire is a shielding wire, the wrapped conductor layer is a shielding layer, and the shielding layer is grounded, so that the interference signal can be guided into the ground by the shielding layer.
When the electron wire is in an electron magnetic field, the shielding wire can block certain electromagnetic signal interference. However, if a high frequency signal exists, the shielding wire may not completely shield the electromagnetic signal.
For example, in the sound system of the electronic display device, when the electronic display main board and the audio signal output end on the screen body are connected through the audio line, the frequency output of the ADC of the audio signal output end is up to 12.88 MHz. In large-size electronic display equipment, the distance between the electronic display main board and the audio signal output end on the screen body can reach two meters at most. When the high-frequency signal passes through the long-distance transmission of ordinary shielded wire, ordinary shielded wire can't shield interference signal completely or filter completely, then can produce the negative effect to the external world.
For example, the interference signals generated during the long-distance transmission of high frequency signals may have adverse effects on the health of the user of the electronic display device, and affect the EMC (electromagnetic compatibility: the ability of the electronic display device to resist electromagnetic interference) certification test of the product of the electronic display device.
SUMMERY OF THE UTILITY MODEL
The application provides an interference signal shielded wire and electronic display equipment, interference signal that interference signal shielded wire can effectively filtering high frequency signal produced at remote transmission in-process.
According to an aspect of the present application, there is provided an interference signal shielded wire including:
the base line group comprises a plurality of base lines, and the base lines are wrapped by a first shielding layer; the second shielding layer wraps the base line group; the metal braid layer wraps the second shielding layer; and the insulating layer is wrapped with the metal braided layer in sections to form a multi-section exposed area.
According to some embodiments of the application, the metal braid is an aluminum magnesium braid.
According to some embodiments of the present application, the first and second shield layers are both aluminum foil layers.
According to some embodiments of the present application, the insulating layer is an insulating acetate rubber cloth layer.
According to some embodiments of the present application, the insulating layer wraps the metal braid in a spiral wound manner.
According to another aspect of the present application, there is provided an electronic display device comprising the above-described disturbing signal shielding line.
According to some embodiments of the present application, an electronic display device includes a metal backplate in electrical communication with a plurality of exposed regions through a conductive cloth.
According to some embodiments of the present application, the electronic display device further comprises an electronic display main board and an audio signal output terminal, the electronic display main board being connected to the audio signal output terminal through the interference signal shielding line.
According to some embodiments of the present application, a distance L between a section of the bare area farthest from the audio signal output terminal among the plurality of sections of bare areas and the audio signal output terminal is less than or equal to 20 cm.
According to some embodiments of the application, the electronic display device further comprises a baffle, and the baffle can shield the interference signal shielding line.
The application provides an interference signal shielded wire and electronic display equipment, interference signal shielded wire includes basic line group, second shielding layer, metallic braid, insulating layer. Wherein the base string group comprises a plurality of base strings wrapped with the first shielding layer.
The first shielding layer separates the base line independently, and the second shielding layer wraps the base line group integrally, so that the leakage of high-frequency signals generated in the signal transmission process is reduced.
The insulating layer includes the exposed district of multistage metal braid, through switching on exposed district and electronic display equipment, realizes the ground connection in exposed district. The grounding of the exposed area can lead interference clutter generated in the high-frequency signal transmission process into the ground, thereby effectively shielding and filtering the interference signals and enabling the signal transmission to be more efficient.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed 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 only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 illustrates a cross-sectional view of a disturbing signal shielded wire according to an example embodiment;
FIG. 2 illustrates a schematic diagram of the connection of an interfering signal shielding line to an electronic display device according to an example embodiment;
FIG. 3 shows a wiring diagram 1000 of jammer shield wires according to an example embodiment.
Description of reference numerals:
an interference signal shielding line 10; a set of baseline groups 100; a baseline 101; a first shield layer 103; a second shield layer 105; an electronic display device 20; p1, electronic display main board 201; p2 audio signal output terminal 203; a conductive cloth 205; a baffle 207; a metal braid layer 300; an exposed area 301; an insulating layer 400; grounding end: p3, P4.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments 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, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other means, components, materials, devices, or the like. In such cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.
Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The application provides an interference signal shielding wire 10 and an electronic display device 20, the interference signal shielding wire 10 comprises a base wire group 100, a second shielding layer 105, a metal braid 300 and an insulating layer 400. The present application will be described with reference to the accompanying drawings.
According to the present exemplary embodiment, fig. 1 illustrates a cross-sectional view of an interference signal shielding line according to an exemplary embodiment, fig. 2 illustrates a connection schematic diagram of an interference signal shielding line according to an exemplary embodiment with an electronic display device, and fig. 3 illustrates a wiring table 1000 of an interference signal shielding line according to an exemplary embodiment.
Referring to fig. 1, the interference signal shielding wire 10 includes a base wire group 100, a second shielding layer 105, a metal braid 300, and an insulating layer 400.
The base line group 100 includes a base line 101, and the base line 101 is made of a metal material, such as a copper wire. Each base string 101 is externally wrapped with a first shielding layer 103.
According to an exemplary embodiment, referring to fig. 3, in the connection table 1000, the terminal P1 is the electronic display main board 201, the terminal P2 is the audio signal output terminal 203, the terminals P1 and P2 are connected through the interference signal shielding line 10, and the terminals P3 and P4 are both grounded.
The baseline set 100 includes four twisted pairs, see wiring table 1000, which are twisted pair 1, twisted pair 2, twisted pair 3, and twisted pair 4, respectively. Each twisted pair includes a signal transmission line and a ground line, see wiring diagram 1000, white representing ground, and red, yellow, blue, and green representing signal transmission lines. The two ends of the white ground wire are respectively connected with the grounding end P3 or P4 and are grounded through the ends P3 and P4.
The base lines 101 are signal transmission lines or ground lines, and each base line 101 is wrapped by a shielding material to form a first shielding layer 103. The shielding material may be any electromagnetic shielding material, such as any metal foil conductive material. Each base line 101 is independent from other base lines 101 by wrapping the first shielding layer 103, and does not interfere with each other. The ground wire in the base line 101 is grounded through the ends P3 and P4, so that the interference of the high-frequency signals in the base line 101 is filtered to the ground, and the high-frequency interference signals are eliminated.
According to an example embodiment, referring to fig. 1, the second shielding layer 105 entirely wraps the group of base lines 100. The second shielding layer 105 entirely wraps the baseline group 100, so as to further prevent the interference signals in the baseline group 100 from being scattered.
Optionally, the first shielding layer 103 and the second shielding layer 105 are both made of aluminum foil. The aluminum foil is a metal film, has good air tightness and shielding performance, and can effectively shield interference signals by adopting the aluminum foil as the first shielding layer 103 and the second shielding layer 105.
According to an exemplary embodiment, referring to fig. 1, the metal braid 300 integrally wraps the second shielding layer 105 to form an interference signal shielding layer.
The metal braid 300 can prevent electromagnetic interference and electromagnetic radiation by using emission, absorption and skin effect of metal material. The metal braid 300 may isolate the electromagnetic field interference source from the signal line, cutting off the propagation path of the interference source.
Optionally, according to an example embodiment, the metal braid 300 is an aluminum magnesium braid. The main elements of the aluminum-magnesium braided layer are aluminum and magnesium, the aluminum-magnesium braided layer has good corrosion resistance and thermal conductivity, and the requirements of electromagnetic shielding and heat dissipation can be fully met.
According to an exemplary embodiment, referring to fig. 1, an insulating layer 400 is wrapped around a metal braid 300 in sections. The insulating layer 400 may isolate the signal lines from the outside, and may prevent a user from electric shock and contact short of the signal lines.
When the insulating layer 400 wraps the metal braid 300 in sections, the exposed area 301 of the metal braid 300 is formed, and the exposed area 301 is not wrapped by the insulating layer 400. The number of the exposed areas 301 is N, and N is a positive integer greater than or equal to 2.
The exposed area 301 can be grounded by connecting a metal back plate on the back of the electronic display device 20, so that interference clutter generated in the signal transmission process is guided into the ground, interference signals are effectively shielded and filtered, and the signal transmission is more efficient.
Optionally, the insulating layer 400 is made of an insulating acetate tape, and wraps the metal braid 300 in a spiral winding manner. The insulating acetate adhesive tape is a high-temperature resistant, anti-aging, soft and conformable adhesive bag with good shape following performance and better insulating performance than common glass fiber cloth and glass cloth. The spiral winding bonding method may allow the insulating acetate and the metal braid 300 to be better combined.
According to another aspect of the present application, the present application further comprises an electronic display device 20, the electronic display device 20 comprising the disturbing signal shielding wire 10 described above, since the disturbing signal shielding wire 10 will not be described repeatedly below.
According to an exemplary embodiment, referring to fig. 2, the electronic display main board 201 is connected to the audio signal output terminal 203 through the interference signal shielding line 10. The high-frequency signal emitted from the audio signal output terminal 203 is transmitted to the electronic display main board 201 through the interference signal shielding wire 10.
Referring to fig. 2, the metal braid 300 is provided with two bare areas 301. The conductive cloth 205 connects the exposed area 301 with the metal back plate on the back of the electronic display device 20, so as to realize grounding of the exposed area 301, and guide interference clutter generated in the transmission process of high-frequency signals into the ground, thereby effectively shielding and filtering the interference signals and enabling the signal transmission to be more efficient.
Optionally, a distance L between a segment of the exposed area 301 farthest from the audio signal output terminal 203 of the electronic display device 20 among the multiple segments of the exposed areas 301 and the audio signal output terminal 203 is less than or equal to 20 cm. The closer the bare region 301 is to the audio signal output terminal 203, the better the interference signal is filtered.
Optionally, according to an example embodiment, the electronic display device 20 further comprises a baffle 207. The baffle 207 is located on the back of the electronic display device 20 and can shield the conductive cloth 205. The baffle 207 shields the conductive cloth 205, so that the problems of easy electric leakage, contact short circuit and the like of the conductive cloth 205 when used in an exposed environment can be avoided, and the safety of the electronic display device 20 is guaranteed.
The application provides an interference signal shielding wire 10 and an electronic display device 20, wherein the interference signal shielding wire 10 comprises a base wire group 100, a second shielding layer 105, a metal braid 300 and an insulating layer 400.
The base line group 100 comprises a plurality of base lines 101 wrapped with first shielding layers 103, the first shielding layers 103 independently separate the base lines 101, and the second shielding layers 105 integrally wrap the base line group 100, so that the leakage of high-frequency signals generated by the signal transmission lines is reduced. The ground line in the baseline 101 is grounded to filter out interference from high frequency signals.
When the interference signal shielding line 10 is connected to the electronic display device 20, the conductive cloth 205 connects the exposed area 301 of the interference signal shielding line 10 to the metal back plate on the back side of the electronic display device 20, so that the exposed area 301 is grounded, and the interference signal is led to the ground.
The application provides an interference signal shielded wire and electronic display equipment can effectual shielding and filtering interference signal, has avoided the interference signal that high frequency signal produced in remote transmission process to the healthy harm that causes of electronic display equipment user, further reduction the influence of interference signal to electronic display equipment product EMC authentication test.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present application, and are not intended to limit the present application, and although the present application is described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the above-mentioned embodiments, or equivalents may be substituted for some of the technical features. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An interference signal shielded wire, comprising:
the base line group comprises a plurality of base lines, and the base lines are wrapped by a first shielding layer;
the second shielding layer wraps the base line group;
the metal braid layer wraps the second shielding layer;
and the insulating layer is used for wrapping the metal braid layer in sections to form a multi-section exposed area.
2. The interference signal shielded wire of claim 1, wherein the metal braid is an aluminum magnesium braid.
3. The jammer signal shielded wire of claim 1, wherein the first and second shield layers are both aluminum foil layers.
4. The interference signal shielding wire of claim 1, wherein the insulating layer is an insulating acetate rubber cloth layer.
5. The interference signal shielded wire of claim 1, wherein said insulating layer is wrapped around said metal braid in a spiral wound manner.
6. An electronic display device characterized by comprising the disturbing signal shielding line according to any one of claims 1 to 5.
7. The electronic display device of claim 6, comprising a metal backplane in communication with the exposed regions via a conductive cloth.
8. The electronic display device of claim 7, further comprising: the electronic display mainboard and the audio signal output end;
the electronic display main board is connected with the audio signal output end through the interference signal shielding wire.
9. The electronic display device of claim 8, wherein the distance L between the audio signal output terminal and the bare region of the plurality of bare regions farthest from the audio signal output terminal is less than or equal to 20 cm.
10. The electronic display device of claim 6, further comprising a baffle that blocks the disturbing signal shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122468828.8U CN216212426U (en) | 2021-10-13 | 2021-10-13 | Interference signal shielding wire and electronic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122468828.8U CN216212426U (en) | 2021-10-13 | 2021-10-13 | Interference signal shielding wire and electronic display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216212426U true CN216212426U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122468828.8U Active CN216212426U (en) | 2021-10-13 | 2021-10-13 | Interference signal shielding wire and electronic display device |
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| Country | Link |
|---|---|
| CN (1) | CN216212426U (en) |
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2021
- 2021-10-13 CN CN202122468828.8U patent/CN216212426U/en active Active
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