WO1997039516A1 - Elektrischer generator einer elektronischen kleinuhr - Google Patents
Elektrischer generator einer elektronischen kleinuhr Download PDFInfo
- Publication number
- WO1997039516A1 WO1997039516A1 PCT/CH1997/000136 CH9700136W WO9739516A1 WO 1997039516 A1 WO1997039516 A1 WO 1997039516A1 CH 9700136 W CH9700136 W CH 9700136W WO 9739516 A1 WO9739516 A1 WO 9739516A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pole faces
- armature
- rotor
- stator
- magnetic pole
- Prior art date
Links
Classifications
-
- 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time pieces
Definitions
- the invention relates to an electric generator of a small electronic watch, the rotor of which can be driven by a flywheel and which is intended for charging a power source that feeds the clockwork, with a permanent magnet arrangement and with an armature arrangement which has at least armature plates which form a coil and armature poles, the circularly arranged magnetic poles and armature poles limit an annular air gap.
- the term armature is understood here in a conventional manner to mean the wound generator part, in which an electrical voltage is induced by rotation of a magnetic field.
- the armature can be fixed, ie belong to the stator or form the stator, or rotate itself, ie belong to the rotor or form the rotor.
- the permanent magnet arrangement forms the rotor, in the second case the stator.
- a small watch with a generator of the type mentioned, in which the armature forms the stator, is known (for example EP-A-0683442, US-A-4008566).
- the power source for example a small accumulator or a capacitor
- the generator is charged by the generator, the rotor of which is firmly connected to a flywheel, and the movement of the clock on the wrist is set in motion.
- the rotor which can be rotated around the center of the small clock, is magnetized or provided with permanent magnets in such a way that magnetic poles are located along its circumference, with the opposite polarity.
- the coil arrangement of the stator can in particular be a ring coil which concentrically surrounds the rotor in the known small clock according to LP-A 0683442.
- the magnetic field strength In order to generate a sufficiently large induction voltage when the rotor rotates, which is sufficient for reliable charging of the current source, the magnetic field strength must be as high as possible because the speed of the rotor that can be achieved by the movement of the wrist or gravity is generally not very high is great if you want to do without speed translation between the driving weight and the rotor.
- a high field strength requires the use of permanent magnets as strong as possible and a maximum possible number of poles.
- the present invention is based on the object of using simple means to reduce the holding torque ⁇ es of the rotor, but nevertheless utilize the magnetic flux from the permanent magnets in the induction phase, that is to say when the rotor is rotating, practically to the maximum for power generation.
- the generator according to the invention is characterized by the features specified in the characterizing part of claim 1 or claim 2.
- the magnetic pole faces and the armature pole faces are designed such that, when the rotor is at rest, at least the majority of the armature pole faces cover only part of a magnetic pole face in order to reduce the holding torque of the rotor in a rest position, but at Rotation of the rotor each armature pole area is covered by the entire area of a magnetic pole.
- the armature expediently forms the stator and the permanent magnet arrangement forms the rotor, so that no slip rings are required.
- stator and stator poles instead of armature and armature poles.
- a first embodiment consists of the stator pole faces being delimited on both sides, symmetrically with respect to their center line parallel to the rotor axis, by triangular edges, that is to say triangular or trapezoidal, while the magnetic pole faces are essentially rectangular.
- the dimension of the magnetic pole surfaces in the circumferential direction of the rotor can be smaller than the base line of the triangular or trapezoidal stator pole surface.
- the bevelled stator poles alternately engage from one side and from the other without touching one another.
- two disc-shaped stator laminations are provided on both sides of a toroidal coil, on the edges of which the stator poles are formed by punching out, which are bent at right angles to complete the stator, so that they protrude over the circumference of the toroidal coil in the assembled state of the generator .
- the stator poles of one plate engage between those of the other plate.
- a second embodiment consists in that the magnetic pole faces are not distributed aquidistantly over the rotor circumference, but are arranged in such a way that, when the rotor is at rest, a certain number of magnetic pole faces are suitably offset relative to the opposite stator pole faces, as will be described later in the description will be explained in more detail. Outside in this case there is a smaller one when the rotor is at rest Coverage of the stator poles by the magnetic poles and thus a smaller holding torque without the practically maximum utilization of the preceding magnetic field strength being neglected in the induction phase.
- the magnetic pole surfaces or the stator pole surfaces can be delimited by lines parallel to the circumferential direction, so that in the rest position of the rotor only a partial overlap of the stator pole and magnetic pole surfaces takes place.
- the magnetic pole faces are so narrow that the stator pole faces that in a rest position of the rotor, the stator pole face opposite a magnetic pole face protrudes beyond the lateral boundaries of the magnetic pole face in both circumferential directions, such that at the first moment of start-up do not change the coverage areas of the poles and thus the effective magnetic flux.
- triangular or trapezoidal or rectangular stator pole faces can be so large that they completely cover the opposite magnetic pole face when the rotor is at rest and protrude on both sides in the circumferential direction.
- At least two of the above-mentioned measures are combined, in particular the use of beveled srator poi areas in connection with the mentioned, in Magnet pole faces offset circumferentially.
- a magnetization of the permanent magnet arrangement that is sinusoidal in the circumferential direction of the rotor can be provided, each sine half-wave corresponding to a magnetic pole.
- FIG. 1 shows the example of a wristwatch in section, in which a generator according to the invention is housed
- FIG. 2 shows a plan view of one of the disk-shaped stator sheets with triangular poles formed by punching along its circumference, in the flat state before the poles are bent,
- FIG. 3 shows the stator plate according to FIG. 2 with poles bent at right angles, these poles being directed below the plane of the drawing in the illustration according to FIG. 3,
- FIG. 4 shows a schematic section through the stator sheet according to IV-IV according to FIG. 3,
- Figure 5 is a schematic plan view of the unwound stator pole faces, which belong to the two stator laminations which open the coil according to Figure 1 on both sides, the bent Engage the stator poles of the upper plate between the bent stator poles of the lower plate,
- FIG. 6 shows a view corresponding to FIG. 5 of the stator poles shown in a developed state, with a hint of the magnetic poles lying behind, in a rest position of the rotor,
- FIG. 7 shows a partial top view of a stator sheet with differently shaped stator poles, in the flat state
- FIG. 8 shows a schematic plan view of the interlocking stator poles of two sheets according to FIG.
- FIG. 9 shows a partial top view of a stator sheet with stator poles shaped differently, in the flat state
- FIG. 10 shows a schematic plan view of the interlocking stator poles of two stator laminations according to FIG.
- FIG. 11 shows a schematic representation of the stator pole and magnetic pole surfaces shown in a developed manner in accordance with another embodiment of the invention with magnetic poles offset in part in the circumferential direction
- FIG. 12 shows a further embodiment of the invention, according to which the magnetic pole surfaces shown in an unwound manner have boundaries oriented obliquely to the circumferential direction of the rotor.
- FIG. 13 shows a schematic representation of a further embodiment, according to which the magnetic pole surfaces are magnetized sinusoidally
- FIGS. 14 to 19 are schematic representations of further exemplary embodiments with different pole shapes and pole arrangements, and
- Figure 20 shows a preferred embodiment of the stator coil arrangement in a generator according to the invention.
- the small watch according to FIG. 1 has a housing with a middle housing part 1, which is closed at the top by a watch glass 2 and at the bottom by a base 3.
- An electronic clockwork 4 is held by means of a plastic retaining ring 5 and carries a dial 6.
- a generator is arranged, which has a stator arrangement 7 with two stator plates 8 and 9 and an annular coil 10 arranged therebetween and a rotor 20.
- stator laminations 8 and 9 the shape of which will be explained in more detail later with reference to FIGS. 2 to 6, have projections bent over at right angles at the edge, which form the stator poles, the stator laminate 8 which is bent upwards downward in the illustration according to FIG. 1 and the lower stator plate 9 has stator poles 90 which are bent upward and which engage alternately and lie on a circle which is concentric with the axis of the small clock.
- the toroid 10 is wound on an inner soft iron 11 which, together with the two stator sheets 8 and 9, which are provided with an opening in the middle, are pressed onto a central screw nut 13. This nut 13 is screwed onto a threaded projection 14 formed on the inside of the base 3. Between The outer circumference of the belt coil 10 and the circularly arranged stator poles 80 and 90, which surround the belt coil at a distance, are arranged a spacer ring 12.
- the coil ends are connected to an annular circuit board 16, which is arranged concentrically to the rotor axis.
- This printed circuit board 16 is electrically connected on the one hand to the charging circuit 16 ′ for the current source, for example a capacitor, consisting of an integrated circuit, and on the other hand by means of spring contacts 17 to the poles of the current source accommodated in the clockwork housing.
- the rotor consists of a ring 21 lying below the stator arrangement 7, which is rotatably mounted around the center of the clock by means of a ball bearing 24, and an annular permanent magnet arrangement 22 carried by this ring, the inner circumference of which surrounds the circularly arranged stator poles with the formation of an air gap.
- a flywheel 23 is attached, which extends in a sector-shaped manner only over part of the circumference of this ring 21 and therefore acts as an imbalance. It lies in a free annulus near the circumference of the housing.
- the inner ring of the ball bearing 24 is seated on a pin formed in the center of the base 3, which is extended inwards by the threaded bolt 14 mentioned.
- the ring-shaped permanent magnet arrangement 22 is magnetized such that there are magnetic poles opposite the stator poles with alternating polarity on its inner circumference.
- the permanent magnet arrangement can also consist of permanent magnets attached to the ring 21.
- FIGS. 2 to 6 represent a first exemplary embodiment.
- both stator sheets 8 and 9 each have 14 equidistant triangular stator poles, which are formed by stamping from a flat sheet, as shown in FIG. 2 for the upper stator sheet 8 with its 14 stator poles 80.
- FIG. 3 shows the same stator sheet with poles bent at a right angle in the direction of the underside of the drawing plane, as indicated in the section in FIG. 4.
- Both stator laminations 8 and 9, which are mounted on both sides of the coil 10 are aligned with one another in such a way that, in the assembled state, their stator poles 80 and 90 facing one another, as shown schematically in FIG.
- stator pole faces 81 and 91 face the annular permanent magnet arrangement 22.
- This permanent magnet arrangement has exactly as many magnetic poles as there are stator poles, in the example considered 28 magnetic poles which directly adjoin one another with their rectangular pole faces.
- FIG. 6 shows the development of the magnetic and stator poles in an idle state of the rotor, in which all stator pole faces 81, 91 face the rectangular magnetic pole faces N (north), S (south) of the magnetic poles, that is to say those shown in broken lines, parallel to the rotor axis oriented center lines of the stator pole and magnetic pole surfaces lie one above the other.
- the stator poles have the shape of a triangle, the base line of which is larger than the dimension of a magnetic pole surface in the circumferential direction, and a height, that is to say a dimension parallel to the rotor axis, which is at least equal to the height of a magnetic pole surface N, S.
- This configuration ensures that in the rest position shown, the stator pole faces are only covered by part of the magnetic pole faces, so that only part of the magnetic field strength acts as a holding torque.
- the region of each stator pole face adjacent to the base line, for example stator pole face 81 not only overlaps the opposite magnetic pole face N, but also the corners of the magnetic pole faces S adjacent on both sides, which further reduces the holding torque. Because of the oblique lateral delimitation of the stator pole faces, there is no sudden, but rather slow, steady change in flow direction when changing the pole, which is a further effect to facilitate the start-up.
- Deflection of the rotor from its rest position therefore requires a correspondingly lower force, that is to say only a slight movement of the wrist or only a slight tilting of the watch, so that the flywheel starts to move with the rotor.
- the entire magnetic pole surfaces are swept over the stator pole surfaces, so that the entire magnetic field strength is used for induction.
- stator poles 80 and 90 are chamfered on both sides, so that the stator pole faces 81 and 91 are delimited on both sides, preferably symmetrically with respect to the center line oriented parallel to the rotor axis, by sc rage edges and that their height is preferably at least as great is like the corresponding dimension of the magnetic pole surfaces in order to use the available magnetic flux as much as possible when the rotor is turned.
- the bevel angle ⁇ between the base line and a beveled side of a stator pole face which in the example considered according to FIG. 6 is approximately 55 °, can also be selected differently, in particular be chosen larger, as shown in the examples according to FIGS. 7 to 10.
- the magnetic pole faces are again rectangular and directly adjoin one another.
- the bevel angle ⁇ is approximately 60 ° and in the example according to FIGS. 9 and 10 approximately 70 °.
- their height is dimensioned so that the stator pole faces 81 and 91 have a trapezoidal shape according to FIGS. 8 and 10, as also shown in FIGS. 7 and 9 for the stator sheet 8 with its poles 80 , between which the end faces of the poles 90 shown bent are indicated.
- FIG. 11 shows the stator and magnetic poles in the unwound state, the stator poles again, as in the example 2 to 6, beveled to form triangular stator pole faces 81 and 91 and the immediately adjacent magnetic pole faces are rectangular.
- the base line of a triangular stator pole face is again larger than the dimension of a magnetic pole face in the circumferential direction.
- the stator poles are again arranged in an aquidistant manner, that is to say the center lines of the stator pole faces 81, 91 oriented parallel to the rotor axis are always at the same distance from one another, the magnetic poles are not aquidistant.
- the center lines of the stator pole faces 81, 91 and the center lines M of the magnetic pole faces N1, S1, N2, S2, etc., are drawn in dashed lines in FIG.
- 16 stator poles and 16 magnetic poles are present and that in the illustrated idle state of the rotor, only every fourth stator pole is aligned with a magnetic pole.
- Those pole pairs to which the magnetic poles N1, N3 and N5 belong are aligned according to FIG. With these pole pairs, the center lines of the pole flaps are aligned one above the other, which is indicated in FIG. 11 by the distance 0.
- the magnetic pole faces lying on both sides of an aligned pole pair are displaced by small distances x or 2x in the opposite sense in relation to the stator pole faces overlapping them, the sum of the displacements in one circumferential direction being at least approximately equal to the sum of the displacements m in the other circumferential direction.
- the three magnetic pole faces S2, N2, S1 which lie to the left of the aligned pole pair (N3, 81) between this and the following aligned pool pair (Nl, 81), with their center lines M around the distances x, 2 >. or xm of the one circumferential direction, according to FIG. 11, shifted to the right relative to the center lines of the opposite stator pole faces 81, 91.
- the magnetic pole faces lying on either side of them are again offset in the opposite sense, that is to say the magnetic pole faces S16, N16, etc. following one another on the left of the aligned pole pair (N16, 81) are around the corresponding distances x, 2x etc. are shifted to the left, while the magnetic pole faces S5 etc. lying on the right side of the pole pair (N5, 81) aligned to the right in FIG. 11 are shifted to the right by the corresponding distances x etc.
- stator poles can also be offset in an analogous manner as described, which results in the same effect.
- the above-described displacement of the magnetic pole surfaces can in principle also be the only measure for reducing the holding torque, that is to say it can be used with rectangular magnetic pole and stator pole surfaces of the same design. However, if this measure is combined with the measure of the beveled stator poles, as shown in FIG. II, is combined, the effect of reducing the holding torque is of course stronger, without having to forego the full utilization of the available magnetic flux.
- stator pole faces 82, 92 are rectangular pole faces of poles, which are formed on the edge of two stator sheets, similar to the stator sheets 8 and 9 according to FIG. 1, and which engage alternately from both sides.
- the stator pole faces 82, 92 seen in the circumferential direction of the rotor, completely cover the magnetic pole faces N22, S22 in the idle state.
- the arrangement can also be such that the obliquely oriented magnetic pole faces intersect the lateral edges of the stator pole faces opposite them in the idle state and possibly overlap the stator pole faces adjacent on both sides in a corner region.
- stator pole faces are delimited by parallel edges oriented obliquely to the circumferential direction and the magnetic pole faces are rectangular, these magnetic pole faces either directly adjoining one another in the circumferential direction or else in Distance from each other.
- Inclined magnetic pole faces can also be used with stators with triangular or trapezoidal stator pole faces.
- An additional measure to reduce the holding torque of the rotor is that the surface of the magnetic poles is not magnetized uniformly strong, but that the magnetization takes place in such a way that its strength changes in the circumferential direction across the pole faces in a sinusoidal manner, as schematically shown in FIG. 13 for the sequence the magnetic pole surfaces N ', S', etc. are shown.
- the stator pole faces 81, 91 are again triangular.
- the density of the vertical lines on the pole faces is intended to indicate the magnetic flux density which becomes stronger towards the center of the pole, which is illustrated below in FIG. 13 by a sinusoidal magnetization film. Each sine half-wave corresponds to one pole face.
- This sinusoidal magnetization ensures that the range of maximum field strengths moves over the same stator pole at the first moment of start-up and thus practically does not cause any holding torque. Furthermore, the magnetic flux density changes its direction continuously and not abruptly when changing poles, which also makes it easier for the rotor to start up.
- a preferred embodiment of the generator according to the invention consists in the use of all three measures described, that is to say the combination of stator poles with bevelled sides, staggered magnetic poles and sinusoidal magnetization of the magnetic pole surfaces.
- This preferred embodiment therefore has the combined features of the exemplary embodiments explained in FIGS. 11 and 13, the maxima and Mmima of the sinusoidal magnetization curve not following one another at uniform intervals, but rather being offset in accordance with the pole center glues M according to FIG.
- FIGS. 14 to 17 schematically show four further possible combinations of rectangular magnetic pole faces, which are spaced apart from one another in the examples considered, and triangular stator pole faces of poles, which in turn can be formed on two stator plates, as in the example according to FIG. 1, and both Alternate sides.
- the base lines of the triangular stator pole faces 83, 93 are as large as the dimension of the magnetic pole faces N23, S23 in the circumferential direction, so that the lateral boundaries of the magnetic pole faces are not exceeded by the stator pole faces in the idle state of the rotor.
- the baselines of the triangular stator pole faces 84, 94 are substantially smaller than the dimension of the magnetic pole faces N24, S24 in the circumferential direction, so that when the rotor is at rest, the magnetic pole faces project beyond the stator pole faces on both sides, that is to say in the circumferential direction.
- This configuration and arrangement of the poles creates a further effect according to the invention, which reduces the holding torque and consists in that the true ⁇ the first period of startup, in one or the other circumferential direction, the covering areas of the stator and magnetic poles and thus the viable magnetic flux do not change.
- the magnetic pole surfaces completely cover the opposite stator pole surfaces during startup, practically no holding torque is effective at all and there is no holding force to be overcome.
- the rotor is at rest, there is a kind of indifferent equilibrium, so that the rotor starts to move under the action of a very small external force and, when the magnetic forces begin to take effect when changing poles, already has a certain momentum.
- FIG. 16 shows an exemplary embodiment in which the above-described effect also occurs, namely that practically no change in the magnetic flux is effective in the first moments of the start-up and therefore the rotor does not need to overcome any force in the first moment of the start-up.
- stator pole and magnetic pole surfaces are reversed.
- the dimensions of the rectangular magnetic pole faces N25, S25, which are practically square in the example considered, are so much smaller than the triangular stator pole faces 85, 95 that in the rest position oes
- Each magnetic pole surface is surmounted on both sides by the opposite stator pole surface.
- the triangular stator pole faces also have the effect that the direction of the magnetic flux does not change abruptly but continuously when the pole is changed.
- the example according to FIG. 17 is a variant of the embodiment according to FIG. 6, in which the rectangular magnetic pole surfaces N21, S21 are at a distance from one another and the triangular stator pole surfaces 81, 91 are so long at their base that they do not only partially the when the rotor is at rest opposite magnetic pole surface, but also overlap the two adjacent magnetic pole surfaces in a corner area.
- both the magnetic pole faces and the stator pole faces are rectangular.
- the stator pole faces 86, 96 are narrower, namely in the example considered by about a third narrower than the magnetic pole faces N26, S26. This again results in the already mentioned effect that practically no holding torque is effective in the first phase of the start-up because the effective magnetic flux does not change. Since the stator pole faces only partially cover the magnetic pole faces in the idle state, the effect previously described due to only partial pole coverage is also effective in this embodiment according to FIG. 18.
- stator pole In the rest position of the rotor, the stator pole only partially covers a magnetic pole, but preferably, parallel to the rotor axis, has a height which is at least as large as the height of the magnetic pole surface in order to make full use of the flux available during rotation. This effect is effective in the examples according to FIGS. 6 to 11, 13, 14, 15, 17 and 18.
- the magnetic pole surface is narrower in the circumferential direction than the stator pole surface (example according to FIGS. 16 and 19).
- stator pole face In the rest position of the rotor, a stator pole face not only overlaps the opposite magnetic pole face, but also somewhat the two adjacent magnetic pole faces (examples according to Figures 6, 11, 13 and 17).
- stator poles or the magnetic poles are offset by certain distances m in one or the other circumferential direction with respect to the pole faces lying opposite in the rest position, but the sum of all displacements in one direction is equal to the sum of all displacements in the other direction is (example according to Figure 11).
- FIG. 20 shows a preferred embodiment of the stator coil arrangement which consists of a double coil, that is to say of two coils 10a and 10b which are expediently wound at the same time and are therefore the same.
- These two coils can be connected in series or in parallel, taking into account the winding direction, using an electronic switch 30, depending on the size of the generator.
- an electronic switch 30 depending on the size of the generator.
- the two coils are connected in series, there are twice the number of turns and twice the resistance compared to the parallel connection. With the optional switchover, the number of turns and the resistance can be doubled or halved.
- the induced voltage is proportional to the number of turns of the coil.
- the resistance of the coil increases with its number of turns and thus reduces the charging current generated. Since the induced voltage of depends on the speed of the rotor and this can vary from case to case, the optimal combination of the number of turns and the resistance of the coil is not a constant value, but changes with the value of the voltage. With slow movements, a large number of turns is advantageous in order to maintain an effective charging voltage. In contrast, with faster movements to adjust the resistance, the resistance should be as small as possible in order to achieve an optimal charge. Since, for reasons of space, only the smallest possible coil volume is available, only the eme or the other type of coil can be used.
- the switchover point can now be selected for any given generator configuration with regard to optimal charging as a function of a company size, which can depend on the rotor speed or the frequency of the pole change, the induced voltage and the charging voltage of the current source.
- the switchover points can be stored in a switchover logic on the basis of calculated data or can be determined as a function of the currently measured values.
- a further measure for reducing the holding torque is that the coil arrangement 10 according to FIG. 1 or the two coils 10a and 10b forming the coil arrangement according to FIG. 20 can be switched on and off by an electronic switch 31 (FIG. 20), that is to say by the La ⁇ esclien switched off for the current source and can be connected to this charging circuit.
- the coil arrangement in the In the idle state, the coil arrangement is switched off, so that the starting torque is reduced accordingly.
- the coil arrangement is then switched on in each case to use the induced voltage for charging the current source.
- This electronic switch 31 can also be operated automatically by a corresponding switchover logic.
- the invention is not limited to the exemplary embodiments described, but includes multiple variants, in particular with regard to the construction of the generator and the stator pole shapes.
- the coil arrangement of the stator can also surround the internal permanent magnet arrangement.
- the configuration described with reference to FIG. 1, according to which the ring-shaped permanent magnet arrangement surrounds the coil arrangement of the stator on the outside, has the advantage, however, that the coil has a smaller resistance due to its shorter length, with the same number of turns, otherwise.
- the permanent magnet arrangement can also be fixedly mounted, while the coil arrangement with its pole plates is movable, that is to say mounted on the rotor.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19780318T DE19780318D2 (de) | 1996-04-17 | 1997-04-04 | Elektrischer Generator einer elektronischen Kleinuhr |
AU21480/97A AU2148097A (en) | 1996-04-17 | 1997-04-04 | Electrical generator for an electronic watch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH983/96 | 1996-04-17 | ||
CH00983/96A CH691238A5 (de) | 1996-04-17 | 1996-04-17 | Elektrischer Generator einer elektronischen Kleinuhr. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997039516A1 true WO1997039516A1 (de) | 1997-10-23 |
Family
ID=4199751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000136 WO1997039516A1 (de) | 1996-04-17 | 1997-04-04 | Elektrischer generator einer elektronischen kleinuhr |
Country Status (5)
Country | Link |
---|---|
CN (1) | CN1216643A (de) |
AU (1) | AU2148097A (de) |
CH (1) | CH691238A5 (de) |
DE (2) | DE29724154U1 (de) |
WO (1) | WO1997039516A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1039074A1 (de) * | 1999-03-23 | 2000-09-27 | EVVA-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. Kommanditgesellschaft | Schlüssel für die Betätigung von elektronisch gesicherten Schlössern |
EP1239567A3 (de) * | 2001-03-09 | 2004-01-02 | Siemens Aktiengesellschaft | Mobiles Kommunikationsendgerät |
AT501725B1 (de) * | 2006-02-21 | 2006-11-15 | Evva Werke | Vorrichtung zum betätigen eines sperrgliedes mit einem elektrischen generator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6886902B2 (ja) * | 2017-09-08 | 2021-06-16 | シチズン時計株式会社 | 電子時計のムーブメント及び電子時計 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4008566A (en) * | 1975-11-10 | 1977-02-22 | Mcclintock Richard D | Electronic watch generator |
US4201930A (en) * | 1977-07-15 | 1980-05-06 | Nippon Soken, Inc. | AC Generator having a clawtooth rotor with irregular trapizoidal teeth |
JPS59127566A (ja) * | 1983-01-11 | 1984-07-23 | Nobuo Kiyokawa | 多極交流磁石発電機 |
JPH03218245A (ja) * | 1990-01-23 | 1991-09-25 | Seiko Instr Inc | 小型発電機 |
EP0544310A2 (de) * | 1991-11-26 | 1993-06-02 | Mitsubishi Denki Kabushiki Kaisha | Dauermagneterregter Läufer für eine dynamoelektrische Maschine |
-
1996
- 1996-04-17 CH CH00983/96A patent/CH691238A5/de not_active IP Right Cessation
-
1997
- 1997-04-04 DE DE29724154U patent/DE29724154U1/de not_active Expired - Lifetime
- 1997-04-04 AU AU21480/97A patent/AU2148097A/en not_active Abandoned
- 1997-04-04 CN CN97193908A patent/CN1216643A/zh active Pending
- 1997-04-04 WO PCT/CH1997/000136 patent/WO1997039516A1/de active Application Filing
- 1997-04-04 DE DE19780318T patent/DE19780318D2/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4008566A (en) * | 1975-11-10 | 1977-02-22 | Mcclintock Richard D | Electronic watch generator |
US4201930A (en) * | 1977-07-15 | 1980-05-06 | Nippon Soken, Inc. | AC Generator having a clawtooth rotor with irregular trapizoidal teeth |
JPS59127566A (ja) * | 1983-01-11 | 1984-07-23 | Nobuo Kiyokawa | 多極交流磁石発電機 |
JPH03218245A (ja) * | 1990-01-23 | 1991-09-25 | Seiko Instr Inc | 小型発電機 |
EP0544310A2 (de) * | 1991-11-26 | 1993-06-02 | Mitsubishi Denki Kabushiki Kaisha | Dauermagneterregter Läufer für eine dynamoelektrische Maschine |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 008, no. 250 (E - 279) 16 November 1984 (1984-11-16) * |
PATENT ABSTRACTS OF JAPAN vol. 015, no. 502 (E - 1147) 18 December 1991 (1991-12-18) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1039074A1 (de) * | 1999-03-23 | 2000-09-27 | EVVA-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. Kommanditgesellschaft | Schlüssel für die Betätigung von elektronisch gesicherten Schlössern |
EP1239567A3 (de) * | 2001-03-09 | 2004-01-02 | Siemens Aktiengesellschaft | Mobiles Kommunikationsendgerät |
AT501725B1 (de) * | 2006-02-21 | 2006-11-15 | Evva Werke | Vorrichtung zum betätigen eines sperrgliedes mit einem elektrischen generator |
US7948097B2 (en) | 2006-02-21 | 2011-05-24 | EVVA-WERK Spezialerzeugung von Zylinder-und Sicherheitsschlosser Gesellschaft GmbH & Co. KG | Apparatus for actuating a locking element with an electrical generator |
Also Published As
Publication number | Publication date |
---|---|
CN1216643A (zh) | 1999-05-12 |
DE19780318D2 (de) | 1999-07-01 |
DE29724154U1 (de) | 2000-05-04 |
AU2148097A (en) | 1997-11-07 |
CH691238A5 (de) | 2001-05-31 |
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