CN203520952U - Shielding wire capable of shielding external interference - Google Patents
Shielding wire capable of shielding external interference Download PDFInfo
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- CN203520952U CN203520952U CN201320550993.0U CN201320550993U CN203520952U CN 203520952 U CN203520952 U CN 203520952U CN 201320550993 U CN201320550993 U CN 201320550993U CN 203520952 U CN203520952 U CN 203520952U
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- conductor
- shielding
- insulation unit
- wire
- holding wire
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Abstract
The utility model provides a shielding wire capable of shielding external interference. The shielding wire comprises a signal wire, a shielding layer and at least a piercing metal member. The signal wire comprises an upper layer insulation unit, multiple conductors and a lower insulation unit. The multiple conductors are parallelly arranged, and the upper surfaces and the lower surfaces of the conductors are respectively attached on the upper insulation unit and the lower insulation unit to form a parallel line structure. The shielding layer is attached on the surface of the signal wire. The piercing metal member comprises at least a metal thorn, and the metal thorn pierces the shielding layer and penetrates one conductor of the signal wire, so that the shielding layer is electrically connected with the conductor, and the conductor pierced by the metal thorn is connected with a ground wire terminal. The parallel line structure is employed by the shielding wire, so that preparing processes are greatly simplified, and production efficiency is improved; shielding signals are grounded through the piercing metal member, the controllability is high, and the yield rate of products is improved; and the shielding wire has good shielding effects, and the stability of signal transmission is ensured.
Description
Technical field
The utility model relates to holding wire technical field, relates in particular to a kind of shielding conductor of maskable external disturbance.
Background technology
Because forceful electric power or low-voltage circuit can produce around magnetic field in by electric current, and these magnetic fields change along with the variation of electric current, so although the cable in field regions is not mobile, be equivalent to carrying out cutting magnetic line movement.The theorem of finding according to faraday can produce induced current on cable.For fear of produce induced current on cable, thus conventionally in the outside of cable, add and wrapped a screen, so shielding conductor has just been born.
The effect of screen shields exactly, and shielding just refer to carrying out the isolation of metal between two area of space, with control electric field, magnetic field and electromagnetic wave by a region to the induction in another region and radiation.Specifically, with shield, the interference source of component, circuit, sub-assembly, cable or whole system is surrounded exactly, prevents that interfere with electromagnetic field is to outdiffusion; With shield, receiving circuit, equipment or system are surrounded, prevent that they are subject to the impact of external electromagnetic field.Because shield all plays and absorbs energy (eddy current loss), reflected energy (boundary reflection of electromagnetic wave on shield) and counteracting energy (electromagnetic induction produces reverse electromagnetic field on screen the interference electromagnetic wave from outsides such as wire, cable, component, circuit or systems and internal electrical magnetic wave, can offset part and disturb electromagnetic wave) effect, so shield has the function that weakens interference.
Shielding conductor is comprised of holding wire and the screen that is wrapped in holding wire outside, and screen consists of aluminium foil or copper mesh grid; Shielding layer grounding, so that induced current discharges into the earth, its surface forms stable equipotentiality body, thereby effectively isolates extraneous noise jamming, guarantees the Transfer Quality of useful signal.
On market, the primary structure of published shielding conductor and the defect of existence thereof are:
1) holding wire is used twisted wire structure, need to carry out sequence of operations to it, comprises de-outer quilt, dealuminzation paper tinsel, sleeve-penetrating, hot blast blowpipe, separated time, could carry out riveting operation to it afterwards, and operation is a lot of, and production efficiency is low; And separated time complex steps, rely on the definition of manual identified pin position, and carry out separated time for pin position twisted pair wire.
2) use the whole parcel of aluminium foil twisted wire, and wrap up separately every signal transmission line and just can reach the effect of shield electromagnetic interference, technique is loaded down with trivial details, and required human cost and material cost are high.
3) materials such as the braiding of outer wrap or copper, aluminium foil are retained to a part at the end of a thread, tail bit and make itself and a metal terminal riveting, then by this metal terminal and earth signal connection formation ground connection.Adopt in this way, shielding material retains must be accurately with the amount of metal terminal riveting, otherwise there will be excessive, the too small phenomenon of riveting, makes it cannot ground connection; Meanwhile, for guard shield material does not contact with other signal conductor, must be to riveting partly shielding effect material bag insulating material.Above operation controllability is low, is prone to badly, makes integrated cost high.
Summary of the invention
An object of the present utility model is to provide a kind of shielding conductor of maskable external disturbance, simplifies its production process, enhances productivity;
Another object of the present utility model is to provide a kind of shielding conductor of maskable external disturbance, simplifies the technique of its laminating shielding material on the basis that guarantees good shielding, reduces human cost and material cost.
Another object of the present utility model is to provide a kind of shielding conductor of maskable external disturbance, overcomes the defect that controllability is low, fraction defective is high because adopting riveting mode to cause.
The purpose of this utility model is achieved through the following technical solutions.
A shielding conductor for maskable external disturbance, comprises holding wire and screen, also comprises at least one metalwork that punctures;
Described holding wire comprises insulation unit, upper strata, complex root conductor, lower floor's insulation unit; Described complex root conductor is arranged in parallel and its upper and lower surface is fitted with insulation unit, upper strata, lower floor's insulation unit respectively, forms parallel lines structure;
Described screen fits in the surface of holding wire;
The described metalwork that punctures comprises at least one metal prong, and this metal prong thrusts and pierce through a conductor in holding wire by described screen, and screen and this conductor are electrically connected; Meanwhile, the described conductor being pierced through by metal prong is connected with ground terminal.
Wherein, described conductor is specially circular metal line, flat wire or metallic cable.
Wherein, described screen adopts characteristic impedance to control material, is specially aluminium foil polyester band.
Wherein, one end of described holding wire, the lower surface in lower floor's insulation unit also posts stiffening plate.
Compared with prior art, the utility model embodiment has following beneficial effect:
1, the utility model adopts the holding wire of parallel construction, compares with traditional twisted wire structure, and the making flow process of holding wire can be reduced to: parallel placement conductor → laminating unit that insulate, greatly simplified the manufacture craft of holding wire, and improved production efficiency; Do not need the definition of manual identified pin position, further simplified technological process, reduced manual work, significantly improved production efficiency.
2, the utility model is sticked on one deck characteristic impedance control material by the surface of the holding wire at parallel construction, reach the object of shield electromagnetic interference and control characteristic impedance, and shield effectiveness is good, characteristic impedance control range is accurate, stable, further guarantees the stability of signal transmission.
3, the utility model employing one punctures metal and thrusts and pierce through one conductor from screen, makes shielded signal ground connection, compares with traditional riveting mode, has greatly improved controllability, has guaranteed product yield.
Accompanying drawing explanation
Fig. 1 is the explosive view of shielding conductor in the utility model embodiment.
Fig. 2 is the schematic diagram of the manufacture craft process one of shielding conductor in the utility model embodiment.
Fig. 3 is the schematic diagram of the manufacture craft process two of shielding conductor in the utility model embodiment.
Embodiment
In the utility model, the main feature of shielding conductor is: 1. wire rod: holding wire adopts by the complex root conductor of the parallel placement transmission cable assembly that insulation unit forms of fitting up and down; 2. shielded signal earthing mode: utilize to puncture metal screen and a conductor are wherein connected, be connected with ground terminal by this conductor; 3. outer laminated material: material is controlled in surface label one deck characteristic impedance of holding wire, reaches the object of shield electromagnetic interference and control characteristic impedance.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, in the present embodiment, shielding conductor comprises: holding wire 1, screen 2, puncture metalwork 3.
(1) holding wire 1
Its structure as shown in Figure 1, comprises insulation unit, upper strata 11, complex root conductor 12, lower floor's insulation unit 13, stiffening plate 14.Wherein, conductor 12 plays transmission and conducting; Insulation unit, upper strata 11He lower floor insulation unit 13 is PET(Polyethylene terephthalate, polyethylene terephthalate) material, plays the effects such as protection conductor 12, insulation, resistance to bending.Outside the two ends of conductor 12 are pressed into flat structure and are exposed to, for the terminal soldering with connector.
(2) screen 2
This screen 2 adopts characteristic impedance to control material, is specially aluminium foil polyester band, fits in the upper surface of insulation unit, upper strata 11, to reach the object of control characteristic impedance.
(3) puncture metalwork 3
Its structure as shown in Figure 1, comprise at least one metal prong 31, this metal prong 31, for thrust and pierce through a conductor of holding wire 1 from screen 2, is connected this conductor simultaneously with ground terminal, screen 2 and this conductor are electrically connected, by the interference signal access ground of shielding.
The making step of above-mentioned shielding conductor comprises:
The first step: as shown in Figure 2, insulate unit 11, complex root conductor 12, lower floor's insulation unit 13, stiffening plate 14 laminatings of upper strata are made to holding wire 1, then in insulation unit, upper strata 11 surface laminating screens 2.
Second step: as shown in Figure 3, the metal prong 31 that punctures metalwork 3 is thrust and pierce through a conductor holding wire 1 from screen 2, make screen 2 and this conductor conducting.
The 3rd step: above-mentioned shielding conductor is connected to upper electronic equipment, complete glitch-free signal transmission.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. a shielding conductor for maskable external disturbance, comprises holding wire and screen, it is characterized in that, also comprises at least one metalwork that punctures;
Described holding wire comprises insulation unit, upper strata, complex root conductor, lower floor's insulation unit; Described complex root conductor is arranged in parallel and its upper and lower surface is fitted with insulation unit, upper strata, lower floor's insulation unit respectively, forms parallel lines structure;
Described screen fits in the surface of holding wire;
The described metalwork that punctures comprises at least one metal prong, and this metal prong thrusts and pierce through a conductor in holding wire by described screen, and screen and this conductor are electrically connected; Meanwhile, the described conductor being pierced through by metal prong is connected with ground terminal.
2. the shielding conductor of maskable external disturbance as claimed in claim 1, is characterized in that, described conductor is specially circular metal line.
3. the shielding conductor of maskable external disturbance as claimed in claim 1, is characterized in that, described conductor is specially flat wire.
4. the shielding conductor of maskable external disturbance as claimed in claim 1, is characterized in that, described conductor is specially metallic cable.
5. the shielding conductor of the maskable external disturbance as described in as arbitrary in claim 1 to 4, is characterized in that, described screen adopts characteristic impedance to control material, is specially aluminium foil polyester band.
6. the shielding conductor of the maskable external disturbance as described in as arbitrary in claim 1 to 4, is characterized in that, one end of described holding wire, and the lower surface in lower floor's insulation unit also posts stiffening plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550993.0U CN203520952U (en) | 2013-09-05 | 2013-09-05 | Shielding wire capable of shielding external interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550993.0U CN203520952U (en) | 2013-09-05 | 2013-09-05 | Shielding wire capable of shielding external interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203520952U true CN203520952U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550993.0U Expired - Fee Related CN203520952U (en) | 2013-09-05 | 2013-09-05 | Shielding wire capable of shielding external interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203520952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474145A (en) * | 2013-09-05 | 2013-12-25 | 深圳市得润电子股份有限公司 | Shielded line capable of shielding external interference |
| CN105207011A (en) * | 2014-06-30 | 2015-12-30 | 广迎工业股份有限公司 | High frequency signal processing method |
-
2013
- 2013-09-05 CN CN201320550993.0U patent/CN203520952U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474145A (en) * | 2013-09-05 | 2013-12-25 | 深圳市得润电子股份有限公司 | Shielded line capable of shielding external interference |
| CN105207011A (en) * | 2014-06-30 | 2015-12-30 | 广迎工业股份有限公司 | High frequency signal processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20160905 |