JP2010283970A - Generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a generator that efficiently generates power by electromagnetic induction. <P>SOLUTION: The generator includes a push button 4 operated at the time of power generation, a power generation unit 10 that generates power by reciprocating a movable yoke 13, and a conversion mechanism 6 that converts the movement of the push button 4 operated into reciprocation of the movable yoke 13. The conversion mechanism 6 is provided with a first conversion mechanism portion 20 that converts displacement of the push button 4 operated into rotation of a rotary member 40, and a second conversion mechanism portion 21 that converts the rotation of the rotary member 40 into swing of a swing arm 45 connected to the movable yoke 13 and thereby reciprocates the movable yoke 13. The conversion mechanism 6 is so configured that the movable yoke 13 reciprocates more than once each time the push button 4 is operated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a power generation device, and more particularly to a power generation device that generates power by electromagnetic induction.

  In recent years, various wireless electronic devices have been provided using a radio frequency band of 2.4 GHz band that is widely open to electronic devices. As one of them, a wireless switch is known. This wireless switch is disposed on a wall or the like, for example, and is used to turn on / off a lighting fixture.

  In such a wireless switch, it is conceivable to use a dry cell or an indoor 100V power source as the power source. However, if a dry cell is used, the replacement is troublesome, and if an indoor power source is used, a wireless switch is provided. The position is fixed and cannot be moved, and in either case, the usability is poor. For this reason, it has been proposed to improve the usability of the wireless switch by providing a power generation device in the wireless switch.

  Conventionally, as a power generation device mounted on such a small electronic device, a magnetic flux penetrating the coil is changed by rotating a disk-shaped magnet inside the coil as shown in Patent Document 1, thereby generating power. A power generator to perform is known. As another power generation device, as shown in Patent Document 2, the magnet is configured to move relative to the planar coil, and the magnetic flux penetrating the planar coil is changed by the movement of the magnet, thereby generating power. There was a power generator to do.

JP 2005-102413 A JP 2004-159407 A

  However, since the power generation device having a structure in which the annular magnet is rotated inside the coil needs to dispose the coil outside the disk-shaped magnet, the electromotive force is weak until the magnet reaches a predetermined rotation speed. There was also a problem that the rise time of power generation became longer.

  On the other hand, in a power generation apparatus having a structure in which a magnet is moved with respect to a planar coil, it is necessary to move a relatively large magnet in the apparatus, and there is a problem that efficient power generation cannot be performed.

  This invention is made | formed in view of said point, and it aims at providing the electric power generating apparatus which can perform an efficient electric power generation.

From the first point of view, the above problem is
An operation unit (4) operated during power generation;
A power generation section (10) that generates power by reciprocating the movable section (13);
A conversion mechanism (6) for converting the movement of the operation unit (4) during operation into the reciprocating movement of the movable unit (13);
The conversion mechanism (6) can be solved by a power generator characterized in that the movable portion (13) is reciprocated a plurality of times by a single operation of the operation portion (4).

  In addition, the said reference code is a reference to the last, and description of a claim is not limited by this.

The disclosed power generation apparatus can generate power multiple times because the movable part can be reciprocated multiple times by the power generation unit by operating the operation unit once. Therefore, the power generation device generates power compared to a configuration in which only one power generation can be performed by one operation. The amount can be increased.
The apparatus can be thinned.

FIG. 1 is a plan view of a wireless switch to which a power generation apparatus according to an embodiment of the present invention is applied, and shows a state where a swing arm swings in the B2 direction. FIG. 2 is a plan view of a wireless switch to which the power generation apparatus according to the embodiment of the present invention is applied, and shows a state where the swing arm swings in the B1 direction. FIG. 3 is a perspective view of a wireless switch to which the power generator according to one embodiment of the present invention is applied. FIG. 4 is a perspective view in plan view of the conversion mechanism of the power generator according to the embodiment of the present invention. FIG. 5 is a rear perspective view of the conversion mechanism of the power generator according to the embodiment of the present invention. FIG. 6 is a diagram (part 1) for explaining the operation of the power generation apparatus according to the embodiment of the present invention, (A) is a plan view of the conversion mechanism, (B) is a bottom view of the conversion mechanism, and (C ) Is a plan view showing a state in which the rotating member and the swing arm of the wireless switch are removed. FIG. 7 is a diagram (part 2) for explaining the operation of the power generation apparatus according to the embodiment of the present invention, (A) is a plan view of the conversion mechanism, (B) is a bottom view of the conversion mechanism, and (C ) Is a plan view showing a state in which the rotating member and the swing arm of the wireless switch are removed. FIG. 8 is a diagram (No. 3) for explaining the operation of the power generation apparatus according to the embodiment of the present invention, (A) is a plan view of the conversion mechanism, (B) is a bottom view of the conversion mechanism, and (C ) Is a plan view showing a state in which the rotating member and the swing arm of the wireless switch are removed. FIG. 9 is a diagram (part 4) for explaining the operation of the power generation apparatus according to the embodiment of the present invention, (A) is a plan view of the conversion mechanism, (B) is a bottom view of the conversion mechanism, and (C ) Is a plan view showing a state in which the rotating member and the swing arm of the wireless switch are removed. FIG. 10 is a diagram (No. 5) for explaining the operation of the power generation apparatus according to the embodiment of the present invention, (A) is a plan view of the conversion mechanism, (B) is a bottom view of the conversion mechanism, and (C) ) Is a plan view showing a state in which the rotating member and the swing arm of the wireless switch are removed.

  Next, embodiments of the present invention will be described with reference to the drawings.

  1 to 5 show a wireless switch 1 to which a power generation apparatus according to an embodiment of the present invention is applied. 1 and 2 are plan views of the wireless switch 1 with the cover removed, FIG. 3 is a perspective view of the wireless switch 1 with the cover removed, and FIG. 4 is a plan view of the case 2 removed. FIG. 5 is a perspective view in which the case 2 is removed and seen from the bottom.

  The wireless switch 1 includes a power generation device and a high-frequency communication device (not shown) inside. The power generation device generates power when the push button 4 is operated, and the high-frequency communication device is driven by the generated power. This high-frequency communication device transmits a 2.4 GHz band radio wave to an electric device (for example, a lighting device) operated by the wireless switch 1 by being driven, whereby the electric device is subjected to ON / OFF processing. .

  The power generation device provided in the wireless switch 1 generally includes a push button 4, a conversion mechanism 6, a power generation unit 10, and the like. The push button 4 serves as an operation unit operated during power generation, and is configured to be movable to the case 2 in the directions of arrows A1 and A2 (see FIG. 3).

  The power generation unit 10 includes coils 11A and 11B, a yoke, a permanent magnet 14, and the like. The coils 11 </ b> A and 11 </ b> B are wound around a resin bobbin 15. The coils 11 </ b> A and 11 </ b> B are connected in series, and both ends thereof are connected to the terminal 16. Therefore, as will be described later, the induced electromotive force generated in the coils 11A and 11B is taken out from the terminal 16.

  The yoke is formed of a soft magnetic material (for example, iron). In this embodiment, the yoke is separated into a fixed yoke 12 and a movable yoke 13. Therefore, the movable yoke 13 is configured to be movable with respect to the fixed yoke 12 in the directions of arrows X1 and X2 in FIG. That is, the movable yoke 13 is configured to reciprocate only in one axial direction with respect to the fixed yoke 12.

  A field permanent magnet 14 is provided on a portion of the fixed yoke 12 exposed from the bobbin 15. The permanent magnet 14 is a single pole magnetized one. The permanent magnet 14 is magnetically connected to the fixed yoke 12.

  In the above configuration, when the movable yoke 13 moves in the direction of the arrow X1, an air layer (air gap) is formed between the fixed yoke 12 and the movable yoke 13. Thus, the yokes 12 and 13 are in a magnetically separated state (hereinafter, this state is referred to as a separated state).

  On the other hand, when the movable yoke 13 moves in the direction of the arrow X2, the movable yoke 13 contacts the fixed yoke 12, and the yokes 12 and 13 are magnetically connected. At this time, the movable yoke 13 is attracted by the magnetic force of the permanent magnet 14 provided on the fixed yoke 12 (hereinafter, this state is referred to as an attracted state). In this attracted state, the fixed yoke 12 and the movable yoke 13 are in a magnetically connected state, and the magnetic flux from the permanent magnet 14 also flows to the movable yoke 13.

  Here, the power generation principle of the power generation unit 10 will be described.

  The power generation unit 10 is configured to generate power using electromagnetic induction. Assuming that the induced electromotive voltage [V] is e (t), the number of coil turns [turns] is N, the magnetic flux [Wb] is φ (t), and the moving amount [m] of the movable yoke 13 is x (t), e (t) = − N (dφ / dt) = − N × (dφ / dx (t)) × (dx (t) / dt). Therefore, it can be seen from this equation that an induced electromotive voltage e (t) is generated in proportion to the change in the number of magnetic fluxes depending on the position of the movable yoke 13 and the moving speed of the movable yoke 13.

  In the attracted state, since the movable yoke 13 is attracted to the fixed yoke 12, the magnetic flux of the permanent magnet 14 forms a closed magnetic path in each of the yokes 12 and 13. For this reason, the number of magnetic fluxes (hereinafter referred to as complex magnetic fluxes) penetrating the coils 11A and 11B increases.

  On the other hand, when the movable yoke 13 is moved in the X1 direction so as to be separated, the magnetic flux does not enter the movable yoke 13 from the fixed yoke 12, and a magnetic flux loop is formed in the vicinity of the permanent magnet 14. Therefore, in the separated state, the number of interlaced magnetic fluxes for the coils 11A and 11B decreases rapidly.

  Thus, since the interlaced magnetic field that penetrates the coils 11A and 11B changes abruptly in a short time in the attracted state and the separated state, an induced electromotive force due to electromagnetic induction can be generated in the coils 11A and 11B. Based on the above principle, the power generation unit 10 generates power.

  A fixing hole 12a for fixing to the case 2 is formed in a portion exposed from the bobbin 15 of the fixed yoke 12, and a swing arm 45 described later is formed in a portion exposed from the bobbin 15 of the movable yoke 13. A connection hole 13a (see FIG. 5) for connection is formed.

  Next, the conversion mechanism 6 will be described. The conversion mechanism 6 has a function of converting the movement of the push button 4 at the time of operation into the reciprocating movement of the movable yoke 13 constituting the power generation unit 10. In short, the conversion mechanism 6 includes a first conversion mechanism unit 20 and a second conversion mechanism unit 21.

  As a basic operation of the conversion mechanism 6, the displacement in the A1 direction of the push button 4 at the time of operation is converted into rotation of the rotary member 40 (rotation in the directions of arrows E1 and E2) by the first conversion mechanism unit 20 and rotation. The rotation of the member 40 is converted into the swing of the swing arm 45 (the swing in the directions of arrows B1 and B2) by the second conversion mechanism unit 21. The movable arm 13 of the power generation unit 10 is connected to the swing arm 45. When the swing arm 45 swings in the B1 and B2 directions, the movable yoke 13 reciprocates in the directions of the arrows X1 and X2. Thus, power generation is performed in the power generation unit 10.

  Hereinafter, the structure of the 1st and 2nd conversion mechanism parts 20 and 21 is demonstrated.

  The first conversion mechanism unit 20 includes a first rack arm 22, a connecting arm 25, a second rack arm 30, a semicircular gear 34, and the like (see FIG. 5). The first rack arm 22 extends in the directions of arrows X1 and X2 at a substantially central position of the case 2. The X2 direction end portion of the first rack arm 22 is formed with a button engaging portion 23 that engages with the push button 4 (see FIG. 4). Therefore, by operating the push button 4 in the arrow A1 direction, the first rack arm 22 moves in the arrow X1 direction.

  A coil spring 29 is provided between the end of the first rack arm 22 in the X1 direction and the inner wall of the case 2. The coil spring 29 elastically biases the first rack arm 22 in the direction of the arrow X2. Further, a rack portion 24 is formed at a position near the button engaging portion 23 of the first rack arm 22.

  The connecting arm 25 is configured to be rotatable about the support shaft 27 in the directions of arrows C1 and C2 in the figure. A pinion portion 26 is formed at one end of the connecting arm 25 close to the first rack arm 22. The pinion portion 26 meshes with a rack portion 24 provided on the first rack arm 22.

  The other end of the connecting arm 25 is connected to the second rack arm 30 via the engagement pin 28. Therefore, when the connecting arm 25 rotates in the C1 direction, the second rack arm 30 moves in the X2 direction, and when the connecting arm 25 rotates in the C2 direction, the second rack arm 30 moves in the X1 direction. The second rack arm 30 is formed with a rack portion 31. The rack portion 31 is engaged with a gear portion 35 provided on the semicircular gear 34 (see FIG. 6C).

  The semicircular gear 34 is configured to be rotatable about the support shaft 38 in the directions of arrows D1 and D2 in the figure. Therefore, when the second rack arm 30 moves in the X1 direction, the semicircular gear 34 rotates in the direction of arrow D2, and when the second rack arm 30 moves in the X2 direction, the semicircular gear 34 rotates in the direction of arrow D1. Further, the semicircular gear 34 has U-shaped grooves 37A and 37B formed in the semicircular portion. The separation distance between the side wall portion 36 and the U-shaped groove 37A is, for example, about 55 ° to 60 °, and the separation distance between the U-shaped grooves 37A, 37B is also, for example, about 55 ° to 60 °. (These separated songs vary depending on the size of the semicircular gear 34, etc.).

  Here, the rotating member 40 will be described. The rotating member 40 is configured to be rotatable in the directions of arrows E1 and E2 around the support shaft 41. However, a torsion spring 52 is connected to the rotating member 40, and this torsion spring 52 always urges the rotating member 40 to rotate in the direction of arrow E1.

  On the surface side of the rotating member 40, six engaging arm portions 42A to 42F extending radially outward from the support shaft 41 are formed so as to protrude (see FIG. 3). The six engagement arm portions 42A to 42F are formed at equal intervals. That is, the interval between the adjacent arm portions of the engagement arm portions 42A to 42F is set to 60 °.

  Moreover, six engagement protrusions 43A to 43F are provided on the back surface side of the rotating member 40 (see FIG. 5). The engaging protrusions 43A to 43F are formed to protrude in a pin shape and are formed at equal intervals. That is, the interval between the adjacent engagement protrusions of each of the engagement protrusions 43A to 43F is 60 °.

  The engaging protrusions 43A to 43F are configured to engage with the side wall portion 36 and the U-shaped grooves 37A and 37B formed on the semicircular gear 34 described above. Therefore, the rotation of the semicircular gear 34 is transmitted to the rotating member 40, whereby the rotating member 40 rotates (the specific operation of the rotating member 40 will be described in detail later).

  Next, the configuration of the second conversion mechanism unit 21 will be described.

  The second conversion mechanism portion 21 includes engagement arm portions 42A to 42F formed on the surface side of the rotating member 40, an engagement wall 48 formed on the swing arm 45, an arm insertion groove 49, and the like. Yes.

  The swing arm 45 is configured to be swingable about the support shaft 46 in the directions of arrows B1 and B2 in the figure. An engaging pin 47 is provided in the vicinity of the support shaft 46 of the swing arm 45, and this engaging pin 47 is connected to the connecting hole 13 a formed in the movable yoke 13 of the power generation unit 10 described above. Yes. Therefore, when the swing arm 45 swings in the B1 and B2 directions as described above, the movable yoke 13 reciprocates in the directions of the arrows X1 and X2, thereby generating power in the power generation unit 10.

  The engagement wall 48 is formed at the upper end of the swing arm 45 (the end separated from the support shaft 46). The engaging wall 48 is configured to engage with engaging arm portions 42 </ b> A to 42 </ b> F formed on the surface side of the rotating member 40 as the rotating member 40 rotates. Therefore, when the rotation member 40 rotates in the direction of the arrow E1, any one of the engagement arm portions 42A to 42F (here, the engagement arm portion 42A) comes into contact with the engagement wall 48. FIG. 1 shows a state in which the engaging arm portion 42 </ b> A is in contact with the engaging wall 48.

  Thereafter, when the rotating member 40 further rotates in the direction of the arrow E1, the distal end portion of the engaging arm portion 42A slides in the direction indicated by the arrow G in FIG. To do. With this pressing force, the swing arm 45 rotates in the direction of the arrow B1. FIG. 2 shows a state in which the engagement arm portion 42 </ b> A has slid to the end of the engagement wall 48 in the arrow G direction.

  The arm insertion groove 49 is formed on the back side of the swing arm 45 and is formed from the end of the engagement wall 48 in the arrow G direction. A broken line in FIG. 8A shows a region where the arm insertion groove 49 is formed. As shown in the figure, the arm insertion groove 49 has a size capable of accommodating at least two of the six engaging arm portions 42A to 42F.

  Therefore, when the rotating member 40 further rotates in the E1 direction from the state shown in FIG. 2, the engaging arm portion 42A is detached from the engaging wall 48 and enters the arm insertion groove 49 as shown in FIG. 8A. . A return spring 50 is connected to the swing arm 45, and the swing arm 45 is always elastically biased in the direction of the arrow B2 by the return spring 50.

  Therefore, the swing arm 45 that has been moved in the arrow B1 direction by the engaging arm portion 42A moves in the arrow B2 direction and returns to the same position as shown in FIG. By performing this operation on each of the engagement arm portions 42A to 42F, the swing arm 45 swings, and accordingly, the movable yoke 13 reciprocates in the X1 and X2 directions.

  Next, a power generation operation in the wireless switch 1 configured as described above will be described with reference to FIGS.

  FIG. 6 shows a state where the push button 4 is not operated (referred to as a pre-operation state). In this pre-operation state, the push button 4 is in a position moved in the A2 direction, and the first rack arm 22 is moved in the arrow X2 direction by the elastic biasing force of the coil spring 29.

  Therefore, the connecting arm 25 rotates in the C2 direction, and the second rack arm 30 moves in the arrow X1 direction. Further, since the second rack arm 30 is moved in the arrow X1 direction, the semicircular gear 34 is rotated in the D2 direction. Furthermore, the swing arm 45 has moved in the B2 direction, so that the movable yoke 13 of the power generation unit 10 is attracted to the fixed yoke 12.

  Here, in the following description, the engaging arm portion 42A of the rotating member 40 faces the engaging wall 48 of the swing arm 45 and the engaging protrusion 43A of the rotating member 40 is the side wall of the semicircular gear 34 in the pre-operation state. The description will be made assuming that the part 36 is in a state of facing the part 36.

  When the push button 4 is operated in the A1 direction, the first conversion mechanism unit 20 is activated. The first rack arm 22 constituting the first conversion mechanism unit 20 moves in the X1 direction when the push button 4 is operated in the A1 direction. As a result, the connecting arm 25 rotates in the C1 direction, the second rack arm 30 moves in the X2 direction, and thus the semicircular gear 34 rotates in the D1 direction. FIG. 7 shows a state (referred to as an initial state) in which the semicircular gear 34 is rotated and the side wall portion 36 has moved to a position where it abuts on the engaging protrusion 43A.

  In this initial state, the oscillating arm 45 is not moved, and is therefore in a state of moving in the direction of arrow B2 in the figure. For this reason, the movable yoke 13 connected to the swing arm 45 via the engagement pin 47 is also in the state of moving in the direction of the arrow X2, and is in a state of being attracted to the fixed yoke 12. When the movable yoke 13 is attracted to the fixed yoke 12, the magnetic flux of the permanent magnet 14 forms a loop passing through the yokes 12 and 13, so that the magnetic flux penetrates the coils 11A and 11B (hereinafter referred to as an interlaced magnetic flux). It becomes.

  When the push button 4 is further operated in the A1 direction from this initial state, the semicircular gear 34 further rotates in the D1 direction. By this rotation, the side wall portion 36 of the semicircular gear 34 presses the engaging protrusion 43A downward in FIG. 7B. Thereby, the rotation member 40 rotates in the arrow E1 direction.

  With the rotation of the rotating member 40, the engaging arm portion 42A formed on the surface side of the rotating member 40 presses the engaging wall 48 of the swing arm 45, whereby the swing arm 45 causes the support shaft 46 to move. It rotates in the direction of arrow B1 about the center. Therefore, the movable yoke 13 of the power generation unit 10 is urged in the direction of the arrow X1 by the rotation of the swing arm 45 and is separated from the fixed yoke 12.

  When the movable yoke 13 is separated from the fixed yoke 12, the magnetic flux of the permanent magnet 14 forms a narrow loop in the fixed yoke 12, and the interlaced magnetic flux of the coils 11A and 11B rapidly decreases. Due to this magnetic flux change, an induced electromotive force is generated in the coils 11A and 11B.

  When the push button 4 is further operated in the A1 direction, the rotating member 40 is further rotated in the E1 direction by the first conversion mechanism portion 20, and the distal end portion of the engaging arm portion 42A moves on the engaging wall 48 in the G direction. Sliding. When the semicircular gear 34 rotates 60 ° from the pre-operation state, that is, when the rotating member 40 rotates 60 °, the engaging arm portion 42A reaches the position where the arm insertion groove 49 is formed.

  As described above, the swing arm 45 is elastically biased by the return spring 50 in the direction of the arrow B2. Therefore, when the engagement between the engagement arm portion 42A and the engagement wall 48 is released and the engagement arm portion 42A is inserted into the arm insertion groove 49, the swing arm 45 is suddenly moved by the elastic biasing force of the return spring 50. Then, the engagement arm portion 42A is inserted into the arm insertion groove 49. FIG. 8 shows a state where the engaging arm portion 42A is inserted into the arm insertion groove 49 (referred to as a first swing end state).

  Further, when the swing arm 45 rotates in the B2 direction, the movable yoke 13 connected to the swing arm 45 moves in the X2 direction, and the movable yoke 13 is again attracted to the fixed yoke 12. Therefore, the magnetic flux of the permanent magnet 14 again forms a loop passing through the yokes 12 and 13, and the coils 11 </ b> A and 11 </ b> B generate induced electromotive force due to the change in the magnetic flux.

  Thus, while the push button 4 is operated and the rotation member 40 is rotated by 60 ° by the first conversion mechanism unit 20, the swing arm 45 swings in the B1 and B2 directions once. The movable yoke 13 reciprocates once in the X1 and X2 directions during the single swing of the swing arm 45, whereby the power generation unit 10 generates two induced electromotive forces.

  When the push button 4 is further operated in the A1 direction after the first swing end state is reached, the semicircular gear 34 further rotates in the D1 direction from the first swing end state (the state shown in FIG. 8). As a result, the side wall 36 is detached from the engaging protrusion 43A, and instead, the U-shaped groove 37A formed in the semicircular gear 34 is newly engaged with the engaging protrusion 43B. Therefore, the rotating member 40 continues to rotate in the E1 direction by the semicircular gear 34 even after the side wall 36 is separated from the engaging protrusion 43A.

  When the rotation of the rotation member 40 is continued in this way, the engagement arm portion 42B engages with the engagement wall 48 of the swing arm 45 in place of the engagement arm portion 42A and presses it. As a result, the swing arm 45 rotates again in the direction of the arrow B1 around the support shaft 46. Therefore, the movable yoke 13 of the power generation unit 10 is urged in the direction of the arrow X1 by the rotation of the swing arm 45 and is separated from the fixed yoke 12. Thereby, like the above, the interlaced magnetic flux of the coils 11A and 11B rapidly decreases, and induced electromotive force is generated in the coils 11A and 11B due to this magnetic flux change.

  When the push button 4 is further operated in the A1 direction, the rotating member 40 is further rotated in the E1 direction by the first conversion mechanism portion 20, and the distal end portion of the engagement arm portion 42B is moved on the engagement wall 48 in the G direction. Sliding. When the semicircular gear 34 and the rotating member 40 are rotated 60 ° from the state where the first swing is finished (when rotated 120 ° from the pre-operation state), the engaging arm portion 42B reaches the position where the arm insertion groove 49 is formed. .

  Then, the engagement between the engagement arm portion 42B and the engagement wall 48 is released, the engagement arm portion 42B is inserted into the arm insertion groove 49, and the swing arm 45 is suddenly B2 by the elastic biasing force of the return spring 50. Rotate in the direction. As a result, the engagement arm portion 42B is inserted into the arm insertion groove 49. FIG. 9 shows a state where the engaging arm portion 42B is inserted into the arm insertion groove 49 (referred to as a second swing end state).

  Further, when the swing arm 45 rotates in the B2 direction, the movable yoke 13 moves in the X2 direction, and the movable yoke 13 is again attracted to the fixed yoke 12. Therefore, the magnetic flux of the permanent magnet 14 again forms a loop passing through the yokes 12 and 13, and the coils 11 </ b> A and 11 </ b> B generate induced electromotive force due to the change in the magnetic flux.

  When the push button 4 is further operated in the A1 direction after the second swing end state is reached, the semicircular gear 34 further rotates in the D1 direction from the second swing end state (the state shown in FIG. 9). As a result, the U-shaped groove 37A is detached from the engaging protrusion 43B, and instead, the U-shaped groove 37B of the semicircular gear 34 is newly engaged with the engaging protrusion 43C, so that the rotation member 40 rotates in the E1 direction. Will continue.

  When the rotation of the rotating member 40 is continued in this way, the engaging arm portion 42C engages with the engaging wall 48 of the swing arm 45 in place of the engaging arm portion 42B and presses it. As a result, the swing arm 45 rotates again in the direction of arrow B1 about the support shaft 46, so that the movable yoke 13 of the power generation unit 10 is biased in the direction of arrow X1 and is separated from the fixed yoke 12. Thereby, like the above, the interlaced magnetic flux of the coils 11A and 11B rapidly decreases, and induced electromotive force is generated in the coils 11A and 11B due to this magnetic flux change.

  When the push button 4 is further operated in the A1 direction, the rotating member 40 is further rotated in the E1 direction by the first conversion mechanism portion 20, and the distal end portion of the engagement arm portion 42C moves on the engagement wall 48 in the G direction. Sliding. When the semicircular gear 34 and the rotating member 40 are rotated 60 ° from the state where the second swing is finished (when rotated 180 ° from the pre-operation state), the engaging arm portion 42C reaches the position where the arm insertion groove 49 is formed. .

  Then, the engagement between the engagement arm portion 42C and the engagement wall 48 is released, the engagement arm portion 42C is inserted into the arm insertion groove 49, and the swing arm 45 is suddenly B2 by the elastic biasing force of the return spring 50. Rotate in the direction. Thereby, the engagement arm portion 42 </ b> C is inserted into the arm insertion groove 49. FIG. 10 shows a state where the engaging arm portion 42C is inserted into the arm insertion groove 49 (referred to as a third swing end state).

  Further, when the swing arm 45 rotates in the B2 direction, the movable yoke 13 moves in the X2 direction, and the movable yoke 13 is again attracted to the fixed yoke 12. Therefore, the magnetic flux of the permanent magnet 14 again forms a loop passing through the yokes 12 and 13, and the coils 11 </ b> A and 11 </ b> B generate induced electromotive force due to the change in the magnetic flux.

  The wireless switch 1 according to the present embodiment is configured such that the rotation member 40 is rotated by 180 ° by the first conversion mechanism unit 20 by one operation of the push button 4 in the A1 direction. Further, among the six engagement protrusions 43A to 43F formed on the surface side of the rotation member 40 while the rotation member 40 rotates 180 °, the three engagement protrusions 43A to 43C are the swing arm 45. The swing arm 45 is configured to swing three times by being engaged and pressed and released.

  As described above, when the swing arm 45 swings once, the movable yoke 13 also reciprocates once in the X1 and X2 directions, whereby the power generation unit 10 generates one induced electromotive force. Therefore, in the wireless switch 1 according to the present embodiment, the power generation unit 10 generates the induced electromotive force three times by one operation of the push button 4, and high power is generated by one operation of the push button 4. It can generate electricity.

  Next, the operation (return operation) of the conversion mechanism 6 that returns the push button 4 to the original position after the push operation of the push button 4 in the A1 direction is completed will be described.

  As described above, the coil spring 29 is attached to the first rack arm 22, and this coil spring 29 always elastically biases the first rack arm 22 in the direction of the arrow X <b> 2. Therefore, when the operation of the push button 4 is released, the first rack arm 22 is moved in the X2 direction by the coil spring 29.

  Therefore, in the 1st conversion mechanism part 20, the connection arm 25 rotates to C2 direction, and the 2nd rack arm 30 moves to X1 direction in connection with this. As described above, since the rack portion 31 of the second rack arm 30 meshes with the gear portion 35 of the semicircular gear 34, the semicircular gear 34 is moved by moving the second rack arm 30 in the X1 direction. It rotates in the direction of arrow D2.

  Here, the rotating member 40 is connected to a torsion spring 52 provided in the case 2, and is always elastically biased in the direction of the arrow E 1 by the elastic force of the torsion spring 52. Therefore, even if the semicircular gear 34 rotates in the direction D2 from the state where the third swing is completed as shown in FIG. 10, even if the engagement protrusion 43C engages with the U-shaped groove 37B for a moment, it immediately disengages from the engagement protrusion 43C. Thus, the engaging protrusion 43C does not move.

  Further, even if the first rack arm 22 moves in the X2 direction and the semicircular gear 34 rotates to the position where the engagement protrusion 43C and the U-shaped groove 37A face each other, the engagement protrusion is inserted into the U-shaped groove 37A in the same manner as described above. Even if 43C is engaged for a moment, it immediately disengages from the engaging protrusion 43C, and the engaging protrusion 43C does not move. In other words, the conversion mechanism 6 according to the present embodiment includes the first rack arm 22 constituting the first conversion mechanism unit 20 when the first conversion mechanism unit 20 returns from the third swing end state to the pre-operation state. The connecting arm 25, the second rack arm 30, and the semicircular gear 34 move toward the pre-operation state, but the rotating member 40 maintains the third swing end state without rotating.

  Therefore, when the push button 4 is pressed next time, the side wall portion 36 of the semicircular gear 34 is engaged with the engaging protrusion 43D to rotate the rotating member 40. Further, when the swing arm 45 swings, the engagement arm portion 42D first engages with the engagement wall 48 of the swing arm 45 and presses it.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments described above, and various modifications are possible within the scope of the gist of the present invention described in the claims. It can be modified and changed.

  For example, in the above-described embodiment, an example in which the power generation device is applied to a wireless switch has been described. However, the application of the power generation device according to the present invention is not limited to this, and various electric devices that are desired to be battery-less and It can be applied to electronic devices.

  In the above-described embodiment, the swing arm is configured to swing three times by one operation of the push button. The number of oscillations by one operation can be set as appropriate.

DESCRIPTION OF SYMBOLS 1 Wireless switch 2 Case 4 Push button 6 Conversion mechanism 10 Electric power generation part 11A, 11B Coil 12 Fixed yoke 13 Movable yoke 14 Permanent magnet 20 1st conversion mechanism part 21 2nd conversion mechanism part 22 1st rack arm 24 Rack part 25 connecting arm 26 pinion part 30 second rack arm 31 rack part 34 semi-circular gear 35 gear part 36 side wall part 37A, 37B U-shaped groove 40 rotating member 42A to 42F engaging arm part 43A to 43F engaging protrusion 45 swinging Arm 46 Support shaft 47 Engagement pin 48 Engagement wall 49 Arm insertion groove 50 Return spring 52 Torsion spring

Claims (4)

An operation unit operated during power generation;
A power generation unit that generates power by reciprocating the movable unit;
A conversion mechanism that converts the movement of the operation unit during operation into the reciprocating movement of the movable unit;
The power generation apparatus according to claim 1, wherein the conversion mechanism is configured to reciprocate the movable portion a plurality of times by one operation of the operation portion. The conversion mechanism is:
A first conversion mechanism that converts the displacement of the operation unit during operation into rotation of the rotating member;
A swing arm connected to the movable portion, and a second conversion mechanism for reciprocating the movable portion by converting rotation of the rotating member into swing of the swing arm. The power generation device according to claim 1, wherein A plurality of engagement portions that engage with the swing arm are provided in a rotation range by an operation at one time of the operation portion of the rotation member,
The power generator according to claim 2, wherein the engaging portion is configured to swing and urge the swing arm by engaging the swing arm. The conversion mechanism is:
The power generation device according to claim 1, further comprising a return mechanism that returns the operation unit displaced during the operation to a position before the operation.

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