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WO1999065109A1 - Dispositif de decharge d'un element absorbant le rayonnement electromagnetique produit par des organes electriques ou electroniques - Google Patents

Dispositif de decharge d'un element absorbant le rayonnement electromagnetique produit par des organes electriques ou electroniques Download PDF

Info

Publication number
WO1999065109A1
WO1999065109A1 PCT/EP1999/003885 EP9903885W WO9965109A1 WO 1999065109 A1 WO1999065109 A1 WO 1999065109A1 EP 9903885 W EP9903885 W EP 9903885W WO 9965109 A1 WO9965109 A1 WO 9965109A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorber element
absorber
dissipator
electrical
support means
Prior art date
Application number
PCT/EP1999/003885
Other languages
English (en)
Inventor
Maurizio Padrin
Original Assignee
M.M.T. S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by M.M.T. S.R.L. filed Critical M.M.T. S.R.L.
Publication of WO1999065109A1 publication Critical patent/WO1999065109A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • 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

Definitions

  • This invention relates to a device for discharging an electromagnetic radiation absorber element in accordance with the introduction to the main claim.
  • An absorber element for electromagnetic radiation in particular emitted by electrical or electronic members such as an electronic processor, a portable telephone, a watch or the ike, is known for example from patent application MI98A000816 filed in the name of the present applicant. If positioned in proximity to a member generating electromagnetic radiation, this absorber element (and other such known elements) acts as a "catalyst" for this radiation, of which at least a part is trapped within the body of the element. This latter is, at least partly, a carbon-containing material and more preferably graphite, and is inserted into the member generating this radiation (for example into its outer casing) or into a specific container to be positioned in proximity to this member, for example into the housing of a portable telephone.
  • the absorber element (or more simply absorber) traps at least a part of the electromagnetic radiation and has to be discharged periodically in order to maintain its operability.
  • An object of the present invention is to provide a device for discharging the said absorber device in a simple and rapid manner.
  • a particular object of the invention is to provide a device of the aforesaid type which is of simple and low-cost construction.
  • Figure 1 is an exploded perspective view of a first device according to the invention during its use with a cylindrical absorber;
  • Figures 2 and 3 are respectively a side view and a top view of the device of Figure 1 ;
  • Figure 4 is a perspective view of a second device according to the invention for use in association with an electromagnetic radiation absorber element associated with a watch;
  • Figures 5 and 6 are respectively a side view and a top view of the device of Figure 4;
  • Figure 7 is a perspective view of a different device according to the invention for use in association with an electromagnetic radiation absorber element of "tablet" shape, also shown;
  • Figures 8 and 9 are respectively a side view and a top view of the device of Figure 7.
  • a discharge device for an electromagnetic radiation absorber element is indicated overall by 1.
  • the element itself is indicated by 2 and comprises a body 3, for example rectilinear, which is at least partly of carbon- containing material (preferably graphite) and is contained for example in a cylindrical container 4, for example of metal or at least of metal at its ends 4A and 43, with which the body 3 is in contact.
  • the body 3 can be positioned within a watch (not shown) or within its case, as indicated in a preceding patent application in the name of the present applicant.
  • the body 3 could alternatively be of "tablet" shape ( Figure 7).
  • the device 1 comprises a body 8 presenting an energy dissipator element 10, for example an electrical resistor, advantageously positioned within a protective member 11, for example of transparent (insulating) plastic.
  • This resistor is connected electrically, via conductors 13 and 14 connected to its opposite ends 10A, 10B, to end members 15, of which at least that portion 16 on which the absorber element 2 is to rest and which is connected to said conductors, is constructed of an electricity- conducting metal .
  • Said end members 15 support the resistor 10 by way of the conductors 13 and 14.
  • the end members 15 are of substantially parallelepiped shape, their portion 16 comprising a semicircular recessed seat 16A arranged to make contact with a corresponding metal end 4A, 43 of the container 4 in which the body 3 is located.
  • the body 8 presents a circular recessed seat 20, on the bottom 21 of which there rest the members 15 and the element 10 (which may be inserted into its protective member 11 or not, as the wall 22 of the seat 20 itself acts as a protection element for the dissipator element).
  • the members 15 are rigid with the bottom 21 of the seat 20, they being, preferably of insulating material, and have their (free) end portion 16 substantially flat to cooperate with the absorber element associated with a watch, for example positioned in a seat in the watch case.
  • the watch is positioned on the body 8, which is provided with a suitably shaped seat 27 lying above the said seat 20, and which is able to receive the watch such that the element 2 associated with it cooperates with the portions 16 (or such that the watch case makes contact with these latter).
  • each portion 16 is shaped in a manner very similar to that of Figures 1 to 3.
  • the seat 16A of each portion 16 is shaped as a slot with its inner wall 16 curved at a radius equal or at least approximately equal to that of the body 3.
  • Each device 1 represented in the accompanying figures and constructed in accordance with the invention is simple to use.
  • the absorber element (either free as in Figures 7-9, or inserted into its container as in Figures 1 to 3, or inserted into an element which contains it as in Figure 4) is placed in contact with the portions 16 of the members 15 such that the absorber 2 closes an electrical circuit comprising itself, the portions 16, the conductors 13 and 14, and the resistor 10.
  • the energy trapped within the body 3 of the absorber element discharges across the resistor which dissipates it as heat. This is reliably achieved in a very short time. As the electrical quantities in play are very low, there is no risk to the user.
  • the energy dissipator element 10 could be an electrical member different from that described, or could comprise several electrical members defining an actual electrical circuit, or another known element performing this function.
  • the body 8 could have a form different from that described and such as to be able to fit an absorber element 2 of complementary shape (such as an absorber element of pendant form).
  • the members 15 could be dispensed with and the body 8 comprise only the element 10 and the conductors 13 and 14 (suitably encapsulated) supporting said element 10 and enabling this latter to make electrical contact with the absorber 2.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

La présente invention concerne un dispositif (1) servant à décharger un élément absorbant (2) destiné au rayonnement électromagnétique produit par des organes électriques ou électriques. Ces organes sont essentiellement les processeurs électroniques, les téléphones portables et les montres. L'élément absorbant considéré (2) comprend un corps (3) fait au moins partiellement d'un matériau contenant du carbone, de préférence du graphite. Ce corps (3), qui est associé à l'organe considéré, peut également être disposé dans un récipient associé à l'organe considéré. En outre, le dispositif de l'invention (1) comprend des organes (10) permettant de dissiper l'énergie électromagnétique absorbée par l'élément absorbant (2). Ces dissipateurs (10) sont associés à des organes supports (13, 14, 15) capables de coopérer fonctionnellement avec l'élément absorbant considéré (2).
PCT/EP1999/003885 1998-06-09 1999-06-04 Dispositif de decharge d'un element absorbant le rayonnement electromagnetique produit par des organes electriques ou electroniques WO1999065109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI98A001304 1998-06-09
ITMI981304 ITMI981304A1 (it) 1998-06-09 1998-06-09 Dispositivo di scarica di un elemento assorbitore di radiazioni elettromagnetiche generate da organi elettrici o elettronici

Publications (1)

Publication Number Publication Date
WO1999065109A1 true WO1999065109A1 (fr) 1999-12-16

Family

ID=11380206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/003885 WO1999065109A1 (fr) 1998-06-09 1999-06-04 Dispositif de decharge d'un element absorbant le rayonnement electromagnetique produit par des organes electriques ou electroniques

Country Status (2)

Country Link
IT (1) ITMI981304A1 (fr)
WO (1) WO1999065109A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012001725A1 (fr) * 2010-07-02 2012-01-05 Francesco Albano Dispositif apte à réduire les effets de la pollution électromagnétique sur le corps humain

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185568A (en) * 1991-01-22 1993-02-09 Circle Prime Mfg. Co. RF test load and method for internal use thereof
US5420588A (en) * 1993-04-14 1995-05-30 Bushman; Boyd B. Wave attenuation
US5565822A (en) * 1994-05-27 1996-10-15 Abb Management Ag TEM waveguide arrangement
WO1997036380A1 (fr) * 1996-03-26 1997-10-02 Euroconcept 2000 Limited Blindage pour un equipement radio

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185568A (en) * 1991-01-22 1993-02-09 Circle Prime Mfg. Co. RF test load and method for internal use thereof
US5420588A (en) * 1993-04-14 1995-05-30 Bushman; Boyd B. Wave attenuation
US5565822A (en) * 1994-05-27 1996-10-15 Abb Management Ag TEM waveguide arrangement
WO1997036380A1 (fr) * 1996-03-26 1997-10-02 Euroconcept 2000 Limited Blindage pour un equipement radio

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012001725A1 (fr) * 2010-07-02 2012-01-05 Francesco Albano Dispositif apte à réduire les effets de la pollution électromagnétique sur le corps humain

Also Published As

Publication number Publication date
ITMI981304A1 (it) 1999-12-09

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