WO2002058194A1 - Dispositif pour contact electrique pour materiau fibreux et son utilisation pour le chauffage par effet joule - Google Patents
Dispositif pour contact electrique pour materiau fibreux et son utilisation pour le chauffage par effet joule Download PDFInfo
- Publication number
- WO2002058194A1 WO2002058194A1 PCT/FR2002/000196 FR0200196W WO02058194A1 WO 2002058194 A1 WO2002058194 A1 WO 2002058194A1 FR 0200196 W FR0200196 W FR 0200196W WO 02058194 A1 WO02058194 A1 WO 02058194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrical contact
- fibrous material
- contact according
- electrical
- adhesive
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/04—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation using electrically conductive adhesives
Definitions
- the present invention relates to a device for electrical contact between an electrical supply and a layer of a fibrous flexible conductive material and the use of this device for Joule heating.
- An object of the present invention is therefore to overcome the aforementioned drawbacks by proposing a device making it possible to make effective electrical contact between a direct or alternating current electrical supply and a layer of predominantly fibrous flexible conductive material, without damaging the material. fibrous, nor alter its mechanical strength.
- Another object of the present invention is to provide a device making it possible to produce an almost continuous electrical contact area between said fibrous material and the electrical supply.
- these objectives are achieved with the device for electrical contact between an electrical supply and a layer of flexible electrically conductive and predominantly fibrous material, which is characterized in that the material is covered, on at least two separate overlap zones, of a layer of an electrically conductive adhesive and a metallic tape.
- the conductive adhesive which perfectly follows the irregularities of the surface of the fibrous material allows electrical contact at a multiplicity of points (and thus an almost continuous contact) between the fibrous material and the tape.
- metallic therefore electrically conductive, over the entire overlap area.
- the adhesive layer makes it possible both to secure the metal strip with the fibrous material and to allow the passage of current between the latter two.
- the adhesive can consist mainly of an adhesive or resin itself conductive, or an adhesive or resin doped for example with silver, copper, graphite ... or an adhesive or a resin containing electrically conductive (micro) particles.
- the separate overlap zones are arranged diametrically opposite, in order to allow the passage of electric current over the whole, or at least over a major part of the layer of said fibrous material.
- the total thickness of the device allows it to be folded at the level of the area covered with the adhesive and the metallic tape.
- This folding can be pleating, aliasing, winding of the layer on itself or on a support, or any other shaping that the flexibility of the layer of fibrous material allows.
- the thickness of the superimposition of the metallic tape and of the adhesive layer can be comprised within a wide range from 0.001 mm to 5 mm, and more particularly between 0.05 mm and 2 mm, the fibrous material possibly having a thickness between 0.1 mm and 10 mm, preferably between 0.4 mm and 5 mm.
- the intensity of the current delivered is a function of the contact resistance between the metal strip and the predominantly fibrous material and also depends on the width of the covering zone. This width can be between 0.001 mm (ribbon in the form of a wire) and approximately 500 mm (flat ribbon). It is important when said contact resistance or the resistivity of the conductive adhesive used is high. This width must also be important if it is necessary to have a power delivered in the high fibrous material.
- the overlap zone by virtue of its superimposed structure, makes it possible to stiffen the fibrous material and thus the conventional connections to an electrical supply can be used: metal clips, welds, rivets, screws, etc. without damaging said material.
- this connection can be at a single point or at a multiplicity of points. A single point is preferred, for technical and economic reasons, the metal strip having the advantage of distributing the current over the entire length of the overlap zone.
- the said material is coated with a conductive varnish, at least in said covering zone.
- the role of this varnish is mainly to stiffen the contact, to improve the interfiber contact, and therefore to decrease the electrical contact resistance while smoothing the surface of the fibrous material.
- this device can be embedded in an electrical and / or thermal insulating material.
- the insulating material is provided with at least one perforation allowing a connection to the electrical supply, for example by screwing or riveting, electrical terminal or "banana” type plug, or the device is embedded with its connection in the insulating material.
- the metal strip has a resistivity of approximately between 10 " and 10 " ⁇ .m, preferably between 10 "7 and 10 " 4 ⁇ .m. In all cases the resistance of this strip must be less than the contact resistance on the fibrous material.
- Said ribbon can for example be based on copper, zinc, aluminum, silver, nickel, iron, nickel-chromium, lead, or any other metal suitable for its properties that are both electrical, thermal and mechanical or based on an alloy of these metals.
- the metal strip can also be replaced by an electrically conductive polymer material.
- the adhesive and the varnish must have a resistivity generally lower than that of said fibrous material. They can contain, for example, (micro) conductive particles which provide numerous contact points with very low electrical resistance.
- Said predominantly fibrous material which can be used in the present invention can be chosen from carbon or activated carbon materials in the form of a fabric, a felt or a fiber agglomerate. Their resistivity is generally of the order of 10 "4 to 10 " 1 ⁇ .m.
- This predominantly fibrous material can be reinforced with a mesh, a mesh or a network in another non-conductive mechanical reinforcement material.
- Said reinforcing material may for example be polypropylene, cellulosic fibers, glass or quartz fibers.
- the electrically conductive fibrous material then serves as a heating element, and can be used for example for panels radiant heaters, interior elements of ovens, chimneys, exhaust pipes, etc.
- the fibrous material is also an adsorbent material (based on activated carbon for example) and it has previously adsorbed molecules (for example odorous and / or polluting organic molecules), the heating of this allows the departure by desorption of these adsorbed molecules, and thus the regeneration of said material. It is also possible to use the device to simply measure the resistance or electrical resistivity of this type of fibrous material. Another use of the device according to the invention relates to the destocking of combustible molecules previously stored within the fibrous material.
- the device according to the present invention can also be used for the polarization of a fibrous surface, for example for the electrostatic capture of particles and dust.
- the fibrous material provided with the device according to the invention can also be used as an electrode in an electrolysis bath.
- FIG. 1 shows, in an exploded view, the superposition of the layers forming the device of the invention
- FIG. 4 shows in perspective a variant of the device of the invention embedded in an insulating material
- FIGS. 5 a and 5 b show in section two examples of connection of the device to the electrical supply
- FIG. 6 shows in perspective a reinforced fibrous material
- FIG. 7 shows a connection between two modules of fibrous material via an additional device according to the present invention.
- the fibrous material (1) is a carbon fabric (activated or not), here constituted of woven fibers (warp and weft) (2).
- This material (1) which is electrically conductive (with a resistivity of the order of 10 " ⁇ .m) is covered, on two overlapping zones Z ⁇ and z 2 of width li and 1 2 , located at the two opposite ends of the fabric of carbon (1), of an acrylic-based, conductive adhesive (3), itself covered with a metallic ribbon here made of copper (4).
- the dimensions of this metallic ribbon (4) correspond to those of the zones of respective overlap of width li, 1 2 and of length L 1? L 2
- the thickness of the copper strip (4) in this example is approximately 35 ⁇ m and its width (l l 5 1 2 ) of 19 mm, its resistivity is around 1.7 10 "8 ⁇ .m.
- a metallic / adhesive tape couple for example a commercial metallic tape can be used, used for shielding connectors and cables against electromagnetic interference, earthing and drainage of electrostatic charges.
- this metallic tape / adhesive assembly has the main role of ensuring the transmission of current between the electrical supply (5) and the fibrous material (1).
- the adhesive is an acrylic-based adhesive containing conductive microparticles (6), as shown in section in Figure 2.
- the resistivity through this adhesive is of the order of 5.10 "3 ⁇ .m.
- the device according to the invention can be doubled, that is to say be provided on both sides of the fibrous material (1), as shown diagrammatically in dotted lines in FIG. 2 (adhesive (3 ') and metallic tape (4 ')).
- the overlap zones z, and z 2 can be located, always on the opposite ends of the fibrous material (1), one on one face of said material, the other on the other. face of the same material, thus allowing better electrical circulation through this fibrous material.
- the carbonaceous fabric (1) would serve as an adsorbent material (for example if the fibrous material is a fabric or felt based on activated carbon) it is advantageous to have the largest possible exchange surface with a minimum space requirement. It may therefore be advantageous, for example, to roll up said material on itself or even to fold or pleat it.
- Figure 3 shows such an arrangement by pleating.
- the fibrous material (1) having here the general shape of a cylinder (7), is pleated in a multitude of folds (8) parallel to each other and parallel to the axis (9) of said cylinder (7).
- the device according to the invention can be placed at the two ends of said cylinder (7), on overlap zones (z) located either inside or outside the cylinder, or one inside , the other on the outside, or even inside and outside of this cylinder, at each end.
- connection (10) with the power supply (5) is here produced at a single point, by means of a weld made on the surface of the metal strip (4), at each end of said cylinder (7), of which only one end is shown in Figure 3.
- FIG. 4 shows a variant of the device according to the invention, where the superposition of a fibrous material (1), sandwiched between two pairs of conductive adhesive (3) / metallic tape (4), is embedded in a insulating material (11) both electric and thermal, which is for example an epoxy resin.
- FIG. 5a it is the cable (12) of the electrical supply which is directly connected to one of the metal strips (4), by means of a welding of the wires (13) of said cable, after having removed the insulating sheath (14).
- a conductive element (15) is welded to one of the metal strips (4) before being embedded in the insulating material (11).
- This element (15) has a female part (16) which communicates with the outside of the block of insulating material (11) and makes it possible to receive a "banana” type plug (not shown), of a cable connected to the power supply.
- the fibrous material (1) can be reinforced by co-laminating with a more mechanically resistant material (18).
- a more mechanically resistant material (18) is presented in FIG. 6, or the laminated part (19) is arranged opposite the overlap zone by the adhesive (3) and the metal strip (4) of the device according to the invention, by compared to the fibrous material (1).
- FIG. 6 also shows another variant according to which the fibrous material (1) is covered, on at least one of its faces, with a varnish (17), conductive, on which the superposition of the adhesive is then placed. (3) and conductive tape (4) (in this figure, the tape has been shifted towards the top of the figure relative to its actual position, for better clarity).
- the device according to the present invention can also serve as an electrical contact between two identical or different modules of fibrous materials (la and lb).
- An example is shown diagrammatically in FIG. 7.
- the two fibrous materials (la and lb) are provided at their neighboring ends with a device according to the invention (respective pairs of conductive adhesive (3a, 3b) (not shown) / metallic tape (4a, 4b)) between which is fixed, by bonding also by means of a conductive adhesive not shown, an additional device comprising at least one (preferably two) metal tape (4c).
- Example of embodiment A device as presented in FIG. 1 is used, in which the constituents have the following characteristics:
- -adhesive (3) (acrylic based containing conductive particles) of resistance 0.005 ⁇ and thickness 0.031mm
- - fibrous material (1) made of activated carbon fabric of resistivity 16 10 "4 ⁇ .m at 20 ° C and 0.5 mm thick
Landscapes
- Resistance Heating (AREA)
- Laminated Bodies (AREA)
- Multicomponent Fibers (AREA)
- Surface Heating Bodies (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Inorganic Fibers (AREA)
- Central Heating Systems (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT02712001T ATE446597T1 (de) | 2001-01-19 | 2002-01-18 | Elektrische kontaktanordnung für fasermaterial und anwendung zur joule-effekt-heizung |
CA2434598A CA2434598C (fr) | 2001-01-19 | 2002-01-18 | Dispositif pour contact electrique pour materiau fibreux et son utilisation pour le chauffage par effet joule |
EP02712001A EP1352449B1 (fr) | 2001-01-19 | 2002-01-18 | Dispositif pour contact electrique pour materiau fibreux et son utilisation pour le chauffage par effet joule |
BR0206287-9A BR0206287A (pt) | 2001-01-19 | 2002-01-18 | Dispositivo para contato elétrico para material fibroso e sua utilização para o aquecimento por efeito joule |
JP2002558372A JP2004523861A (ja) | 2001-01-19 | 2002-01-18 | 繊維製品用電気接点装置及びジュール加熱のためのその使用 |
DE60234080T DE60234080D1 (de) | 2001-01-19 | 2002-01-18 | Elektrische kontaktanordnung für fasermaterial und anwendung zur joule-effekt-heizung |
US10/250,944 US6891107B2 (en) | 2001-01-19 | 2002-01-18 | Device for electric contact for textile material and use thereof for joule heating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/00752 | 2001-01-19 | ||
FR0100752A FR2819942B1 (fr) | 2001-01-19 | 2001-01-19 | Dispositif pour contact electrique pour materiaux fibreux et son uitilisation pour le chauffage par effet joule |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002058194A1 true WO2002058194A1 (fr) | 2002-07-25 |
Family
ID=8859036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/000196 WO2002058194A1 (fr) | 2001-01-19 | 2002-01-18 | Dispositif pour contact electrique pour materiau fibreux et son utilisation pour le chauffage par effet joule |
Country Status (9)
Country | Link |
---|---|
US (1) | US6891107B2 (fr) |
EP (1) | EP1352449B1 (fr) |
JP (1) | JP2004523861A (fr) |
AT (1) | ATE446597T1 (fr) |
BR (1) | BR0206287A (fr) |
CA (1) | CA2434598C (fr) |
DE (1) | DE60234080D1 (fr) |
FR (1) | FR2819942B1 (fr) |
WO (1) | WO2002058194A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7840272B2 (en) | 2005-06-03 | 2010-11-23 | Medrelief Inc. | Methods for modulating osteochondral development using bioelectrical stimulation |
US10398377B2 (en) * | 2015-09-04 | 2019-09-03 | Japan Science And Technology Agency | Connector substrate, sensor system, and wearable sensor system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588127A1 (fr) * | 1985-10-02 | 1987-04-03 | Pernot Roger | Gant de mise a la masse |
US4660908A (en) * | 1985-08-05 | 1987-04-28 | Ameron, Inc. | Grounding saddle |
EP0477069A2 (fr) * | 1990-09-21 | 1992-03-25 | Saint-Gobain Vitrage International | Elément de connexion électrique pour un vitrage automobile chauffant |
EP0574310A1 (fr) * | 1992-06-11 | 1993-12-15 | Seb S.A. | Plaque chauffante pour récipient chauffant, notamment pour bouilloire |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU502325B2 (en) * | 1975-07-29 | 1979-07-19 | Zirconal Processes Ltd. | The modular construction of furnaces |
US4442139A (en) * | 1979-12-11 | 1984-04-10 | Raychem Corporation | Elements comprising fibrous materials |
US4367585A (en) * | 1979-12-26 | 1983-01-11 | Western Electric Company, Inc. | Methods for the termination and connectorization of multi-conductor flat cable |
US4918814A (en) * | 1984-12-20 | 1990-04-24 | Redmond John P | Process of making a layered elastomeric connector |
US4733059A (en) * | 1987-06-15 | 1988-03-22 | Thermon Manufacturing Company | Elongated parallel, constant wattage heating cable |
US6734363B1 (en) * | 1992-07-07 | 2004-05-11 | International Business Machines Corporation | Lightweight electronic equipment conductor with coolant permeable support |
US6080267A (en) * | 1994-04-26 | 2000-06-27 | Lithium Technology Corporation | Method of electroconductive fastening of current collectors and terminals in electrochemical devices |
US6414286B2 (en) * | 1999-04-22 | 2002-07-02 | Malden Mills Industries, Inc. | Electric heating/warming fibrous articles |
-
2001
- 2001-01-19 FR FR0100752A patent/FR2819942B1/fr not_active Expired - Fee Related
-
2002
- 2002-01-18 US US10/250,944 patent/US6891107B2/en not_active Expired - Fee Related
- 2002-01-18 BR BR0206287-9A patent/BR0206287A/pt not_active Application Discontinuation
- 2002-01-18 DE DE60234080T patent/DE60234080D1/de not_active Expired - Lifetime
- 2002-01-18 WO PCT/FR2002/000196 patent/WO2002058194A1/fr active Application Filing
- 2002-01-18 EP EP02712001A patent/EP1352449B1/fr not_active Expired - Lifetime
- 2002-01-18 AT AT02712001T patent/ATE446597T1/de not_active IP Right Cessation
- 2002-01-18 CA CA2434598A patent/CA2434598C/fr not_active Expired - Fee Related
- 2002-01-18 JP JP2002558372A patent/JP2004523861A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4660908A (en) * | 1985-08-05 | 1987-04-28 | Ameron, Inc. | Grounding saddle |
FR2588127A1 (fr) * | 1985-10-02 | 1987-04-03 | Pernot Roger | Gant de mise a la masse |
EP0477069A2 (fr) * | 1990-09-21 | 1992-03-25 | Saint-Gobain Vitrage International | Elément de connexion électrique pour un vitrage automobile chauffant |
EP0574310A1 (fr) * | 1992-06-11 | 1993-12-15 | Seb S.A. | Plaque chauffante pour récipient chauffant, notamment pour bouilloire |
Also Published As
Publication number | Publication date |
---|---|
BR0206287A (pt) | 2004-01-13 |
EP1352449A1 (fr) | 2003-10-15 |
FR2819942B1 (fr) | 2003-05-30 |
US20040053518A1 (en) | 2004-03-18 |
CA2434598A1 (fr) | 2002-07-25 |
FR2819942A1 (fr) | 2002-07-26 |
EP1352449B1 (fr) | 2009-10-21 |
DE60234080D1 (de) | 2009-12-03 |
ATE446597T1 (de) | 2009-11-15 |
JP2004523861A (ja) | 2004-08-05 |
CA2434598C (fr) | 2010-12-21 |
US6891107B2 (en) | 2005-05-10 |
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