WO2008152676A1 - Cable trunk or the like, and method for its production - Google Patents
Cable trunk or the like, and method for its production Download PDFInfo
- Publication number
- WO2008152676A1 WO2008152676A1 PCT/IT2008/000482 IT2008000482W WO2008152676A1 WO 2008152676 A1 WO2008152676 A1 WO 2008152676A1 IT 2008000482 W IT2008000482 W IT 2008000482W WO 2008152676 A1 WO2008152676 A1 WO 2008152676A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container body
- metallic material
- cover
- cable trunk
- material layer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0418—Covers or lids; Their fastenings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0084—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition
Definitions
- the present invention relates to guide and protection systems for electric cables, telephone cables or the like, and particularly to cable trunks or the like.
- aim of the present invention is to provide a cable trunk or the like which can minimize the above described adverse effects, while being able to be manufactured at a low cost and to be adapted to the widest range of uses.
- an object of the present invention is a cable trunk or the like comprising a container body provided with a bottom wall and two side walls, and a cover, said cover and said side walls of said container body being provided with mutual coupling means, said container body and said cover being made of thermoplastic material, characterized in that the inward surface of said container body and the inward surface of said cover are covered with a metallic material layer.
- said metallic material layer is in a range from about 50 nm to about 1 ⁇ m in thickness; preferably, the thickness of such layer is in a range from about 100 nm to about 500 nm, and more preferably the thickness of such layer is in a range from about 200 nm to about 300 nm.
- the metallic material is a highly conductive metal; typically, such metal can be Cu, Al, Ag, Au.
- such metal is a light, inexpensive metal such as Cu and Al; the metallic material layer can also be made of alloys of the above-listed metals.
- the magnetron sputtering technology has been used.
- Another object of the present invention is a method for producing a cable trunk of the above-described type, comprising the steps of extruding the thermoplastic material to form the container body and the cover respectively, introducing said container body and said cover into a properly sized vacuum chamber respectively in the presence of suitable metallic material targets and excitation means, and depositing the metallic material layer on the desired surface.
- Fig. 1 is an enlarged cross-section view of an embodiment of the cable trunk according to the present invention.
- reference numeral 1 denotes the container body of the cable trunk according to the present invention, comprising a bottom wall 101 and two side walls 201. Both the bottom wall 101 and the side walls 201 are covered with a metallic material layer 301 on the inward face of said container body 1 , and the thickness of such metallic material layer has been exaggerated in the figure for the sake of illustration.
- a groove 211 is formed at the open end of each side wall 201 , on the outward face thereof.
- the container body 1 is coupled to a cover 2, comprising a closing plate 102 and two side tabs 202, through tooth projections 212 protruding from the open end of each tab 202, which cooperates with the corresponding groove 211 on the respective side wall 201 of the container body 1.
- Both said closing plate 102 and said side tabs 202 are covered with a metallic material layer 302 on the inward side of said cover 2, and also in this case the thickness of the metallic material 302 has been exaggerated for the sake of illustration.
- the features of the device of the present invention, as well as the method for the manufacture thereof, will be more apparent from the following description.
- the present invention relates to all types of electrically insulating supports, although with process variants, in order to make the support electrically conductive and to achieve functional properties concerning the ability to prevent or limit electromagnetic interferences as necessary.
- Such functional feature is reached by depositing a metallic layer; typically, such metal can be Cu 1 Al, Ag 1 Au.
- such metal is a light, inexpensive metal such as Cu and Al; the metallic material layer can also be made of alloys of the above- listed metals.
- the metallic material layer is in a range from about 50 nm to about 1 ⁇ m in thickness; preferably, the thickness of such layer is in a range from about 100 nm to about 500 nm, and more preferably the thickness of such layer is in a range from about 200 nm to about 300 nm.
- the technique uses a pulsed DC power supply (but, alternatively, an alternate or continuous power supply as well) which is applied to one or more magnetrons suitably arranged within the vacuum chamber and containing the requisite metallic targets. The application of such power to the magnetron source allows the production of a metallic plasma, followed by the deposition of nano-layers onto the substrate to be covered.
- the peculiarity of the process is to remarkably increase the shielding ability against RF noise, so as e.g. to dramatically limit interferences within the cable trunk among different types of uses (telephone, data, electric cables).
- Such procedure can be used to cover objects of any size so as to allow the application of both merely decorative and functional coatings such as, for example, in the production of flat-screen surfaces. Since the process is carried out under a high vacuum environment, no chemical residue is produced as an effluent material, therefore it is completely environmentally-compatible and it can be manufactured on an industrial scale.
- the process takes place within a vacuum chamber made of stainless steel, which is provided with series of (planar and/or circular) magnetrons powered by pulsed DC sources; the chamber is brought to a vacuum of about 5x10 5 mbar.
- the substrate to be covered is properly manipulated within the chamber by means of computer-aided robots which allow the substrate to be handled and then evenly exposed to a metallic plasma produced by the magnetrons.
- Further RF 1 DC, MF sources are used according to process variables in order to obtain RF plasmas and/or ionic discharges which are needed for the substrate to be cleaned, and such cleaning is carried out before the metallization process.
- Such pre-treatment plasmas/discharges can be produced by suitable ionic and/or RF sources, which are also placed within the vacuum chamber and then properly powered.
- the whole pre-treatment and metallization process occurs under a plasma environment aided by using various process gases such as nitrogen, argon and/or oxygen according to the cleaning and/or depositing plasmas.
- the process is preceded by a step of preparing the substrate whereby when the requisite vacuum has been attained within the chamber, an activating plasma is produced, and then the acceleration step and the metallization step are performed.
- the peculiarity of the procedure lies in the progressiveness of the metallization action produced on the insulating support and from the dynamic control of the process values, resulting in maintenance of a constant value of vacuum within the chamber.
- the deposition of the thin metallic layer produces a layer of conductive molecules which are "oriented" and perfectly attached to the support to be treated, so as to make the surface perfectly “rolled” with an ohmic value as defined by the resistivity of the employed metal and by the deposited thickness.
- the present process can avoid any subsequent protective coating treatment, so as to maintain unaltered the properties of the metallic coating such as, for example, electrical conductivity or natural oxidation property.
- hardening treatments can be carried out before the metallization process, by covering with different types of polymers through operative techniques under an high vacuum environment, or alternatively through dripping processes at atmospheric pressures.
- protective clear elements are applied by the same sputtering technique under a high vacuum environment, or alternatively by electron gun or thermal evaporation; such protective elements can be suitable compounds such as silica (SiO 2 ), alumina (AI 2 O 3 ) and/or other compounds selected according to specific requirements, or polymeric coatings produced by dipping or spraying techniques, such elements in all cases being able to remove the unwanted features.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physical Vapour Deposition (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Adornments (AREA)
Abstract
Cable trunk or the like comprising a container body (1) provided with a bottom wall (101) and two side walls (201), and a cover (2), said cover (2) and said side walls of said container body being provided with mutual coupling means, said container body (1) and said cover (2) being made of thermoplastic material; the inward surface of said container body (1) and the inward surface of said cover (2) are covered with a metallic material layer.
Description
CABLE TRUNK OR THE LIKE, AND METHOD FOR ITS
PRODUCTION TEXT OF THE DESCRIPTION
The present invention relates to guide and protection systems for electric cables, telephone cables or the like, and particularly to cable trunks or the like.
Today, distribution systems for a variety of cables which use cable trunks are widely employed, both for their easy deployment and for their accessibility every time the wired net has to be modified or implemented.
Since, in the last years, data transmission lines have acquired a more and more prominent role, above all in wiring nets for offices, an important problem is the noise which can exist on such lines due to magnetic fields induced by feeder lines. Cable shielding can be an answer, however the increase of costs can be extremely considerable, above all for nets of a given size.
Thus, aim of the present invention is to provide a cable trunk or the like which can minimize the above described adverse effects, while being able to be manufactured at a low cost and to be adapted to the widest range of uses.
Therefore, an object of the present invention is a cable trunk or the like comprising a container body provided with a bottom wall and two side walls, and a cover, said cover and said side walls of said container body being provided with mutual coupling means, said container body and said cover being made of thermoplastic material, characterized in that the inward surface of said container body and the inward surface of said cover are covered with a metallic material layer.
Advantageously, said metallic material layer is in a range from about 50 nm to about 1 μm in thickness; preferably, the thickness of such layer is in a range from about 100 nm to about 500 nm, and more preferably the thickness of such layer is in a range from about 200 nm
to about 300 nm. The metallic material is a highly conductive metal; typically, such metal can be Cu, Al, Ag, Au. Preferably, such metal is a light, inexpensive metal such as Cu and Al; the metallic material layer can also be made of alloys of the above-listed metals. In order to deposit a layer which can be consistent, continuous and perfectly attached to the support, the magnetron sputtering technology has been used. Another object of the present invention is a method for producing a cable trunk of the above-described type, comprising the steps of extruding the thermoplastic material to form the container body and the cover respectively, introducing said container body and said cover into a properly sized vacuum chamber respectively in the presence of suitable metallic material targets and excitation means, and depositing the metallic material layer on the desired surface. Other advantages and features of the present invention will be apparent from the description of an embodiment thereof, which is provided by way of illustration, and not by way of limitation, with reference to the accompanying drawing, wherein:
Fig. 1 is an enlarged cross-section view of an embodiment of the cable trunk according to the present invention.
In Fig. 1, reference numeral 1 denotes the container body of the cable trunk according to the present invention, comprising a bottom wall 101 and two side walls 201. Both the bottom wall 101 and the side walls 201 are covered with a metallic material layer 301 on the inward face of said container body 1 , and the thickness of such metallic material layer has been exaggerated in the figure for the sake of illustration. A groove 211 is formed at the open end of each side wall 201 , on the outward face thereof. The container body 1 is coupled to a cover 2, comprising a closing plate 102 and two side tabs 202, through tooth projections 212 protruding from the open end of each tab 202, which cooperates with the corresponding groove 211 on the respective side wall 201 of the
container body 1. Both said closing plate 102 and said side tabs 202 are covered with a metallic material layer 302 on the inward side of said cover 2, and also in this case the thickness of the metallic material 302 has been exaggerated for the sake of illustration. The features of the device of the present invention, as well as the method for the manufacture thereof, will be more apparent from the following description. The present invention relates to all types of electrically insulating supports, although with process variants, in order to make the support electrically conductive and to achieve functional properties concerning the ability to prevent or limit electromagnetic interferences as necessary. Such functional feature is reached by depositing a metallic layer; typically, such metal can be Cu1 Al, Ag1 Au. Preferably, such metal is a light, inexpensive metal such as Cu and Al; the metallic material layer can also be made of alloys of the above- listed metals. The metallic material layer is in a range from about 50 nm to about 1 μm in thickness; preferably, the thickness of such layer is in a range from about 100 nm to about 500 nm, and more preferably the thickness of such layer is in a range from about 200 nm to about 300 nm. The technique uses a pulsed DC power supply (but, alternatively, an alternate or continuous power supply as well) which is applied to one or more magnetrons suitably arranged within the vacuum chamber and containing the requisite metallic targets. The application of such power to the magnetron source allows the production of a metallic plasma, followed by the deposition of nano-layers onto the substrate to be covered.
The peculiarity of the process, as described below in detail, is to remarkably increase the shielding ability against RF noise, so as e.g. to dramatically limit interferences within the cable trunk among different types of uses (telephone, data, electric cables). Such procedure can be used to cover objects of any size so as to allow the application of both
merely decorative and functional coatings such as, for example, in the production of flat-screen surfaces. Since the process is carried out under a high vacuum environment, no chemical residue is produced as an effluent material, therefore it is completely environmentally-compatible and it can be manufactured on an industrial scale.
The process takes place within a vacuum chamber made of stainless steel, which is provided with series of (planar and/or circular) magnetrons powered by pulsed DC sources; the chamber is brought to a vacuum of about 5x105 mbar. The substrate to be covered is properly manipulated within the chamber by means of computer-aided robots which allow the substrate to be handled and then evenly exposed to a metallic plasma produced by the magnetrons. Further RF1 DC, MF sources are used according to process variables in order to obtain RF plasmas and/or ionic discharges which are needed for the substrate to be cleaned, and such cleaning is carried out before the metallization process. Such pre-treatment plasmas/discharges can be produced by suitable ionic and/or RF sources, which are also placed within the vacuum chamber and then properly powered. The whole pre-treatment and metallization process occurs under a plasma environment aided by using various process gases such as nitrogen, argon and/or oxygen according to the cleaning and/or depositing plasmas.
Initially, the process is preceded by a step of preparing the substrate whereby when the requisite vacuum has been attained within the chamber, an activating plasma is produced, and then the acceleration step and the metallization step are performed.
The peculiarity of the procedure lies in the progressiveness of the metallization action produced on the insulating support and from the dynamic control of the process values, resulting in maintenance of a constant value of vacuum within the chamber. The deposition of the thin metallic layer produces a layer of conductive molecules which are "oriented" and perfectly attached to the
support to be treated, so as to make the surface perfectly "rolled" with an ohmic value as defined by the resistivity of the employed metal and by the deposited thickness.
In contrast with ordinary scenarios, since such deposited build-up is structurally anchored to the substrate, the present process can avoid any subsequent protective coating treatment, so as to maintain unaltered the properties of the metallic coating such as, for example, electrical conductivity or natural oxidation property. Alternatively, in the presence of specifically high requirements of wear- and rubbing- resistance, hardening treatments can be carried out before the metallization process, by covering with different types of polymers through operative techniques under an high vacuum environment, or alternatively through dripping processes at atmospheric pressures.
If some properties such as, for example, oxidation property are not desired, then, in a final step, protective clear elements are applied by the same sputtering technique under a high vacuum environment, or alternatively by electron gun or thermal evaporation; such protective elements can be suitable compounds such as silica (SiO2), alumina (AI2O3) and/or other compounds selected according to specific requirements, or polymeric coatings produced by dipping or spraying techniques, such elements in all cases being able to remove the unwanted features.
Claims
1. Cable trunk or the like comprising a container body (1) provided with a bottom wall (101) and two side walls (201), and a cover (2), said cover (2) and said side walls of said container body being provided with mutual coupling means (211 , 212), said container body (1) and said cover (2) being made of thermoplastic material, characterized in that the inward surface of said container body (1) and the inward surface of said cover (2) are covered with a metallic material layer (301, 302) .
2. Cable trunk according to Claim 1, wherein said metallic material layer (301 , 302) is in a range from about 50 nm to about 1 μm in thickness.
3. Cable trunk according to Claim 2, wherein said metallic material layer (301 , 302) is in a range from about 100 nm to about 500 nm in thickness.
4. Cable trunk according to Claim 3, wherein said metallic material layer (301 , 302) is in a range from about 200 to about 300 nm in thickness.
5. Cable trunk according to any one of the preceding Claims 1 to 4, wherein the metallic material layer (301 , 302) is consisted of a highly conductive metal.
6. Cable trunk according to Claim 5, wherein said metal is selected from the group consisting of Cu, Al, Ag, Au.
7. Cable trunk according to Claim 6, wherein said metal is Cu or Al.
8. Cable trunk according to any one of Claims 1 to 5, wherein said metallic material layer is made of a highly conductive metal alloy.
9. Method for producing a cable trunk according to any one of the preceding claims, comprising the steps of extruding the thermoplastic material to form the container body (1) and the cover (2) respectively, introducing said container body (1) and said cover (2) into a properly sized vacuum chamber respectively in the presence of suitable metallic material targets and excitation means, and depositing the metallic material layer (301 , 302) on the desired surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITGE20070053 ITGE20070053A1 (en) | 2007-06-15 | 2007-06-15 | KEYCHAIN OR SIMILAR CHANNEL, AND METHOD FOR ITS MANUFACTURE |
| ITGE2007A000053 | 2007-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008152676A1 true WO2008152676A1 (en) | 2008-12-18 |
Family
ID=39870527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2008/000482 WO2008152676A1 (en) | 2007-06-15 | 2008-06-13 | Cable trunk or the like, and method for its production |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITGE20070053A1 (en) |
| WO (1) | WO2008152676A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510142A (en) * | 2013-09-17 | 2014-01-15 | 兰继红 | Cable line slot for electrolytic solution pool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1963292B1 (en) * | 1969-12-17 | 1970-11-12 | Manfred Dahl | Installation channel |
| FR2692731A1 (en) * | 1992-06-18 | 1993-12-24 | Jacquelin Henri Charles | Fully screened plastic trunking for electric cables - has metal foil sandwiched within or lining, plastic walls and cover, with continuity contact across joints |
| EP0597670A1 (en) * | 1992-11-09 | 1994-05-18 | Chugai Ings Co., Ltd | Method of manufacturing electromagnetic wave shielding plastic molding |
| EP0647089A1 (en) * | 1993-09-30 | 1995-04-05 | Siemens Aktiengesellschaft | Process for the manufacture of three dimensional plastic parts having integrated conductive tracks |
| EP1225248A1 (en) * | 2001-01-18 | 2002-07-24 | Matsushita Electric Works, Ltd. | Resin moldings for application in electronical components |
-
2007
- 2007-06-15 IT ITGE20070053 patent/ITGE20070053A1/en unknown
-
2008
- 2008-06-13 WO PCT/IT2008/000482 patent/WO2008152676A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1963292B1 (en) * | 1969-12-17 | 1970-11-12 | Manfred Dahl | Installation channel |
| FR2692731A1 (en) * | 1992-06-18 | 1993-12-24 | Jacquelin Henri Charles | Fully screened plastic trunking for electric cables - has metal foil sandwiched within or lining, plastic walls and cover, with continuity contact across joints |
| EP0597670A1 (en) * | 1992-11-09 | 1994-05-18 | Chugai Ings Co., Ltd | Method of manufacturing electromagnetic wave shielding plastic molding |
| EP0647089A1 (en) * | 1993-09-30 | 1995-04-05 | Siemens Aktiengesellschaft | Process for the manufacture of three dimensional plastic parts having integrated conductive tracks |
| EP1225248A1 (en) * | 2001-01-18 | 2002-07-24 | Matsushita Electric Works, Ltd. | Resin moldings for application in electronical components |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510142A (en) * | 2013-09-17 | 2014-01-15 | 兰继红 | Cable line slot for electrolytic solution pool |
Also Published As
| Publication number | Publication date |
|---|---|
| ITGE20070053A1 (en) | 2008-12-16 |
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