CN100508076C - Method for connecting decoupling shielded cable - Google Patents
Method for connecting decoupling shielded cable Download PDFInfo
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- CN100508076C CN100508076C CNB2007100049291A CN200710004929A CN100508076C CN 100508076 C CN100508076 C CN 100508076C CN B2007100049291 A CNB2007100049291 A CN B2007100049291A CN 200710004929 A CN200710004929 A CN 200710004929A CN 100508076 C CN100508076 C CN 100508076C
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- decoupling
- cable
- screen
- coupling
- shielded cable
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003672 processing method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
An application method for a coupling-releasing shield cable, configures a new coupling-releasing shield cable by adding an encircling insulative conductive coupling-releasing shield layer (2) between an insulative wire cable core (1) and an outer shield layer (4) of a common shield cable, the coupling-releasing shield layer (2) is connected to a control loop common port (COM) so that capacitance coupling of the outer shield layer (4) and the inner insulative wire cable core (1) is cut. And the new coupling-releasing shield layer (2) forms a new larger distribution capacitance together with the insulative wire cable core (1) connected with a control loop and the grounding outer shield layer (4), respectively, a coupling-releasing and filtering work state is showed on the controlled loop, thereby, the distribution capacitance can be converted into a good action of increasing antijamming ability of the loop.
Description
Technical field
The technology of the present invention belongs to the electrical control field, a kind of special shielded type cable and method of attachment that can effectively suppress system and circuit electromagnetic interference and transmission channel coupled interference simultaneously.
Background technology
In order to guarantee that large-scale control system still can move under the situation of insulation reduction or one point earth, the system wiring mode of non_direct ground is adopted in the direct current supply of control system usually.For the anti-interference control cable that needs often adopts shielded type cable, and because there is very big distributed capacitance in general shielding control cable, its screen is to design by direct grounding way.This cable and the mode of connection are applied in the large-scale control system of above-mentioned suspension power supply, and its bigger distributed capacitance must provide coupling channel for the alternation sexual harassment source of internal system, has reduced the operational reliability in control system and loop on the contrary.Especially when control system was sneaked into by the very high adjacent electric main system of incidence, consequence was very serious.Practical operation situation according to present electric power system control loop has fully proved this point.
Summary of the invention
According to the problem of above-mentioned existence, the objective of the invention is to improve the shortcoming that the shielded type cable distributed capacitance influences system's security of operation, a kind of mode of connection that has the decoupling shielded cable of electromagnetic shielding and decoupling double action concurrently is provided.
A kind of decoupling shielded cable of the present invention and application process thereof, by between the insulated conductor cable core 1 of general shielded type cable and outer shielding layer 4, increase one deck around the method for decoupling screen 2 of isolate conductive, constitute new decoupling shielded cable, practical application is connected to control loop common port (COM) with decoupling screen 2, and other mode of connection is constant.
A kind of decoupling shielded cable of the present invention and application process thereof, because newly-increased decoupling screen 2 is connected to the common port COM of controlled circuit, thus cut off the capacitive coupling of outer shielding layer 4 with built-in electrical insulation lead cable core 1.And new decoupling screen 2 forms new big distributed capacitance with the outer shielding layer 4 of insulated conductor cable core 1 that is connected control loop and ground connection respectively, controlled loop is presented the operating state of decoupling and filtering, thereby be converted into the optimum effect that can strengthen the loop antijamming capability.
A kind of decoupling shielded cable of the present invention and application process thereof, compare with existing general shielded type cable and application process thereof, its effectiveness does not only slacken bigger enhancing on the contrary, can keep other performance and manufacturing process and general using method fully simultaneously.
The method of attachment feature of a kind of decoupling shielded cable of the present invention is that this decoupling shielded cable has one to some lead cable cores (1) that have the insulation parcel; Outer most surrounding at insulated conductor cable core (1) is wrapped in the decoupling screen (2) that is made of electric conducting material; Outer most surrounding at decoupling screen (2) is wrapped in inner insulating layer (3); Outer most surrounding at inner insulating layer (3) is wrapped in outer shielding layer (4); Outer most surrounding at outer shielding layer (4) is wrapped in oversheath (5), and this method comprises: the corresponding cable cores (1) different by decoupling shielded cable are communicated with respectively by control elements; Decoupling screen (2) is connected to public (COM) end in controlled loop, make between cable core (1) and decoupling screen (2) distributed capacitance be filter state in parallel by control elements, blocked the capacitive coupling passage of cable core (1) and outer shielding layer (4); Outer shielding layer (4) is connected to the earth, make with decoupling screen (2) between the distributed capacitance that forms be converted into the decoupling capacitor over the ground of controlling power-supply system.
Description of drawings
Accompanying drawing 1 illustrates a kind of decoupling shielded cable cross section structure diagrammatic sketch of the present invention;
Accompanying drawing 2 illustrates a kind of decoupling shielded cable application process diagrammatic sketch of the present invention.
Specific embodiments
A kind of decoupling shielded cable of the present invention is as shown in Figure 1: wherein this decoupling shielded cable comprises insulated conductor cable core 1, decoupling screen 2, inner insulating layer 3, outer shielding layer 4, oversheath 5.
As shown in Figure 1, present embodiment is a kind of decoupling shielded cable with 7 insulated conductor cable cores 1, and the line footpath material of insulated conductor and pattern and insulating material are all not limited; Decoupling screen 2 is to be made of the electric conducting material that is looped around insulated conductor 1 outside, can use Copper Foil, the continuous coiling of aluminium foil, or the frame mode of the cable shield of the multiple routines such as conductive braid of employing continued circling; Inner insulating layer 3 is that its material and processing method are not limit as the usefulness only of the electric insulation between decoupling screen 2 and outer shielding layer; The same normal cable of the material of other parts and processing method.
Accompanying drawing 2 shows a kind of decoupling shielded cable application process diagrammatic sketch of the present invention: comprising decoupling shielded cable QL, and by control elements J1～JN, control switch K1～KN, control loop common port COM, ground connection PE, the positive and negative power source bus KM+ of control system, KM-.
Control switch K1～KN one end shown in Fig. 2 connects positive supply, and the other end is communicated with respectively by control elements J1～JN by the different corresponding cable core 1 of decoupling shielded cable QL; Decoupling screen 2 is connected to the negative polarity end (COM end) of public power, makes the distributed capacitance of 2 of cable core 1 and decoupling screens and is filter state in parallel by control elements; Decoupling screen 2 has been blocked the capacitive coupling relation of cable core 1 with outer shielding layer 4, the electromagnetic shielding action that is connected to 4 pairs of cable cores of outer shielding layer of the earth PE does not change, and and the big distributed capacitance of 2 of new decoupling screens, be converted into the decoupling capacitor over the ground that control power-supply system (KM-) is the COM end.
As seen, a kind of decoupling shielded cable of the present invention and application process thereof, obviously strengthen the antijamming capability in institute's using system and loop, solved the suspension electric power supply control system that background technology is used conventional shielded type cable in a large number, because of the excessive threat that operational reliability is brought of cable distribution electric capacity.
It will be apparent to one skilled in the art that various modifications and changes may be made in the present invention under the situation that does not break away from the spirit or scope of the present invention.
Claims (2)
1. the method for attachment of a decoupling shielded cable, this decoupling shielded cable have one or more lead cable cores (1) that have the insulation parcel; Outer most surrounding at insulated conductor cable core (1) is wrapped in the decoupling screen (2) that is made of electric conducting material; Outer most surrounding at decoupling screen (2) is wrapped in inner insulating layer (3); Outer most surrounding at inner insulating layer (3) is wrapped in outer shielding layer (4); Outer most surrounding at outer shielding layer (4) is wrapped in oversheath (5), and this method comprises:
The corresponding cable cores (1) different by decoupling shielded cable are communicated with respectively by control elements;
Decoupling screen (2) is connected to the common port in controlled loop, make between cable core (1) and decoupling screen (2) distributed capacitance be filter state in parallel by control elements, blocked the capacitive coupling passage of cable core (1) with outer shielding layer (4);
Outer shielding layer (4) is connected to the earth, make with decoupling screen (2) between the distributed capacitance of formation be converted into the decoupling capacitor over the ground of the common port in controlled loop.
2. the method for attachment of decoupling shielded cable as claimed in claim 1, comprise that further control switch one end connects an end of power supply, the other end is communicated with respectively by control elements by the different corresponding cable core (1) of decoupling shielded cable, by the common port in another controlled loop of termination of control elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100049291A CN100508076C (en) | 2007-02-12 | 2007-02-12 | Method for connecting decoupling shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100049291A CN100508076C (en) | 2007-02-12 | 2007-02-12 | Method for connecting decoupling shielded cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101038802A CN101038802A (en) | 2007-09-19 |
| CN100508076C true CN100508076C (en) | 2009-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100049291A Active CN100508076C (en) | 2007-02-12 | 2007-02-12 | Method for connecting decoupling shielded cable |
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| Country | Link |
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| CN (1) | CN100508076C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254636A (en) * | 2011-04-29 | 2011-11-23 | 王一群 | Process for manufacturing outer conductor in coaxial cable production process and special lubricating oil device thereof |
| CN112771632B (en) * | 2019-06-19 | 2022-08-02 | 韩宇南 | Filtering cable |
| CN116533260B (en) * | 2023-04-28 | 2024-04-09 | 上海长征医院 | Anti-interference method of vein anesthesia robot system for ship |
-
2007
- 2007-02-12 CN CNB2007100049291A patent/CN100508076C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 接地技术. 刘鉴莹.航空兵器，第3期. 2001 |
| 接地技术. 刘鉴莹.航空兵器，第3期. 2001 * |
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| Publication number | Publication date |
|---|---|
| CN101038802A (en) | 2007-09-19 |
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Owner name: GUANGZHOU JIENENG POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: MENG LI Effective date: 20101123 |
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Free format text: CORRECT: ADDRESS; FROM: 100044 201, UNIT 1, BUILDING 18, YARD 59, GAOLIANGQIAO BYWAY, HAIDIAN DISTRICT, BEIJING TO: 510760 ROOM 103, 1/F, PHASE TCL CULTURAL INDUSTRIAL PARK, NO. 69, GUANGPU WEST ROAD, SCIENCE CITY, GUANGZHOU NEW + HIGH TECHNOLOGY INDUSTRY DEVELOPMENT ZONE, GUANGZHOU CITY, GUANGDONG PROVINCE |
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Effective date of registration: 20101123 Address after: 510760, Guangdong Guangzhou hi tech Industrial Development Zone, Science City, 69 West spectrum, No. 103, TCL Cultural Industry Park, 1st floor, room No. 1, Guangzhou Patentee after: Guangzhou Jieneng Electric Power Technology Co.,Ltd. Address before: 100044 No. 1, building 18, No. 59, sorghum oblique street, Haidian District, Beijing, 201 Patentee before: Meng Li |
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