Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
  • A61N1/00—Electrotherapy; Circuits therefor
  • A61N1/18—Applying electric currents by contact electrodes
  • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
  • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
  • A61N1/372—Arrangements in connection with the implantation of stimulators
  • A61N1/378—Electrical supply
  • A61N1/3785—Electrical supply generated by biological activity or substance, e.g. body movement
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C10/00—Arrangements of electric power supplies in time pieces
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
  • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

Definitions

• Portable mini AC generator/DC accumulator for a mini power capacity Portable mini AC generator/DC accumulator for a mini power capacity.
• the invention relates to a portable mini AC generator/DC accumulator for a mini power capacity as used e.g. for e wrist, a pocket or s necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of the bearer, a mass inertia or a rotor, set into motion with respect, to a stator not moving simultaneously therewith, and under the application of the pricipal of generating magnetic induction ' currents and via a rectifier known per se, transferring a mini AC into a mini DC, servicing the purpose of supplying directly or temporarily accumula ⁇ ting respectively a mini current.
• a portable mini AC generator/DC accumulator for a mini power capacity as used e.g. for e wrist, a pocket or s necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of the bearer, a mass inertia or a rotor, set into motion with respect
• a mini AC generator/DC accumulator contains a mutually cooperating selective magnetic system of a rotor and a stator, provided with a permanent magnet having at least 4 poles.
• a lithiumcell can be applied, which by its characteristic prevents a discharge of the accumulator.
• the main problem is to generate a sufficiently powerfull and high grade magnetic field and thus the required high voltage remaining within the res- tricted available space.
• Supreme material for permanent magnets is extremely expensive.
• material costs are less decisive for the ultimate price, so that for the mini generator/accumulator of the invention successivefull use can be made of a permanent magnet of the samarium-cobalt type pereformed in its isotropic or anisotropic version.
• resins plastic bonded material
• Even a disadvantage of less magnetic field strength can be compensated by the greater freedom of design engineering. This also makes it possible to apply a permanent mag ⁇ net with radial or axial magnetisation for the rotor/stat ⁇ r.
• Fig. 1 shows the schematic drawing ⁇ f a selfloading quartz generator watch.
• Fig. 2 shows perspectively a similar watch in which the invention is embodied.
• Fig. 3 is a modified version according to Fig. 3 of a quartz generator watch.
• Fig. 4-9 each show various embodiments of the construction of the generator/ accumulator in a top view and in a vertical cross section respectively;
• Fig. 10 is a cross se tion of a permanent magnet.
• a quartz generator watch 1 is powered by an accumulator 2.
• This mini accumulator is charged by a mini
• the watch 1 is, by resorption of kinetic energy provided by its bearer powered by the mini generator/accu ⁇ mulator, no battery replacement being required and thereby enjoying the advantages of the invention.
• Fig. 2 and 3 various parts of a quartz generator watch according to the scheme of Fig. 1 can be found back.
• the usual parts of the analog quartz watch consist of the battery 7, the oscillating circuit with quarz crystal 8, the coil 9 of the step by step motor 10 with its rotor.
• the watch is provided with a rotor 11 and a stator 12 and on the rotor 11 there are mounted a number of permanent magnets 13, which magnets also provide for the mass inertia causing the rotor 1 1 to be brought out of balance.
• the way of generating energy shall not be discussed hereinafter since this is supposed to be known.
• a rotor can also in it self be selectively become magnetised and the stator instead of containing a single coil, can consists of a number of self inductions or otherwise be made of a self inductive element.
• the stator instead of containing a single coil, can consists of a number of self inductions or otherwise be made of a self inductive element.
• the rotor is selectively magnetic and the stator is selectively inductive or reversely, it is only necessary to take the generated current away to the accumulator 7 via the rectifier ccircuit, see Fig. 1.
• To generate a mini power, caused by the bearer's kinetic energy, in stead of a rotating movement also an alternating movement can be used, in the plane of the rotor but also perpendicular thereto.
• Fig. 3 shows a perpective view of another quatrs generator watch, the shape of the generator rotor 14 being different whereas the accumulator 15 and the combined rectifier circuit/voltage regulator/discharge protection 16 are shown as a single unit. From the difference in design between the genera ⁇ tor 1 1 and 14 some freedom in design is apparent, this being the result of the application of permanent magnets of the samarium-cobalt type in its isotropic or anisotropic version. It appears that this material is highly suitable for the mini power aimed at, despite its relatively high price, in combination with the advantages already discussed before.
• Figs. 4-9 there are shown some constructional embodiments of the mini generator making it possible to provide for a loose unit having minimum and optimal dimensions respectively.
• a stator 17 with an induction coil 18 and a permanent magnet 19 of samarium-cobalt have been applied, together with a rotor 20 which is turnable around a fixed shaft 21.
• the embodiments shown in the Figs enable to give the complete loose unit for use in a quartz watch a minimum thickness of 1,5 mm with a diameter of 5mm and having a thickness of at most 4 mm with a diameter of 11 ,5 mm.
• Fig. 10 shows a possible embodiment in a cross section of a permanent magnet in the shape of an ellipsoide, having such an iron yoke, that magnetic satura ⁇ tion is just being prevented. This can e.g. be done by making the iron thicker at the critical points.
• the permanent magnet 22 is surrounded fay the iron yoke 23 which provides for a cylindrical assembly.

Landscapes

• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• General Physics & Mathematics (AREA)
• Molecular Biology (AREA)
• Biomedical Technology (AREA)
• Physics & Mathematics (AREA)
• Radiology & Medical Imaging (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Electromechanical Clocks (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19840221

Family Applications (1)

Country Status (3)

Families Citing this family (15)

Family Cites Families (9)

• 1982
  • 1982-09-03 NL NL8203443A patent/NL8203443A/nl not_active Application Discontinuation
• 1983
  • 1983-09-02 WO PCT/NL1983/000034 patent/WO1984001041A1/en unknown
  • 1983-09-02 EP EP19830902826 patent/EP0119223A1/de not_active Withdrawn

Non-Patent Citations (1)

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