JP6366396B2 - Static induction generator - Google Patents

Description

The present invention relates to an electrostatic induction generator and a power generation apparatus that are excellent in power generation efficiency by efficiently using external vibration.
As the energy source of the power generator of the present invention, it is possible to use kinetic energy widely present in the environment, such as human motion, machine vibration, and the like. The present invention can be applied to a power generator, a power generation device, a portable electric device, a portable timepiece and the like using environmental vibration.

Practical power generators using electrostatic induction by electret materials are disclosed in Patent Documents 1 and 2.
The electrostatic induction is a phenomenon in which when a charged object is brought close to a conductor, charges having a polarity opposite to that of the charged object are attracted.
The power generation device using the electrostatic induction phenomenon is a structure in which a “film for holding electric charges” (hereinafter referred to as a charged film) and a “counter electrode” are arranged, and by using this phenomenon, the two are moved relative to each other. It is power generation that extracts the induced charge.

  FIG. 1 is an explanatory diagram for explaining the principle of power generation using the electrostatic induction phenomenon.

  Taking the case of an electret material as an example, the electret is one in which a charge is injected into a dielectric, and generates an electrostatic field semipermanently. In the power generation by this electret, as shown in FIG. 1, the electret and the counter electrode are brought close to each other, an induced charge is generated in the counter electrode by the electrostatic field formed by the electret, and the area of overlap between the electret and the counter electrode is changed ( If it vibrates etc., it can take out as an alternating current in an external electric circuit. The power generation by this electret has a relatively simple structure and is advantageous in that a higher output can be obtained in the low frequency region than that by electromagnetic induction, and has recently attracted attention as so-called “energy harvesting”.

  Patent Document 1 discloses an electrostatic induction power generating device that performs a reciprocating periodic rotation between an electret film and an electrode using a balance spring (a kind of spiral spring, a watch term). This prior art has a mechanism in which a rotating electrode with a weight is fixed to a rotating shaft and a balance spring is connected to the rotating shaft and a housing, and the rotating electrode reciprocally rotates by the spring effect of the balance spring to generate electric power. It is. According to this configuration, since there is no structure for restricting the rotation of the rotating electrode with the weight, when the vibration entering the generator is increased by the external vibration and the rotation amount of the rotating electrode increases too much, the elastic deformation region of the balance spring Deformation exceeding this will occur. In that case, the balance spring will not return to its original shape, and the generator will not rotate normally. Also in Patent Document 2, the rotating electrode reciprocates by the spring effect of the balance spring, and generates electricity. However, a structure that restricts the rotation of the rotating electrode with a weight is not recognized, and the above problem can be solved. is not.

  Patent Document 3 is known as a protection device for a balance spring of a mechanical timepiece. This prior art is composed of a plate-like protective member that prevents the balance spring from being deformed by an impact vibration such as dropping onto a concrete floor from a height of 1 m. The gap between the protective member and the balance spring is always present (0.1 mm or less) even when the balance spring is most widened. This prior art plate-shaped protection member is used to rotate a rotating electrode with a weight. It is not intended to be a structure that regulates

JP2013-59149A JP 2013-135544 A Japanese Utility Model Publication No. 51-301

  In an electrostatic induction generator that generates electricity by reciprocatingly rotating the charging film and the counter electrode due to the spring effect of the balance spring, the rotation of the rotating weight and the rotating member with the electrode rotates too much, and the deformation of the balance spring becomes too large. In view of the problem of breakage, it is an object to regulate these rotations.

  The electrostatic dielectric power generator according to the present invention includes a housing, a rotating weight rotatable with respect to the housing, a rotating member rotatable with respect to the housing, a fixed substrate fixed to the housing, and the rotating A charging film disposed on either one of the member and the fixed substrate, a counter electrode disposed opposite to the charging film on the other of the two, and between the charging film and the counter electrode In an electrostatic induction generator having an output section for outputting generated electric power and a spiral spring balance spring that generates a reciprocating rotary motion in the rotating member, a restriction for limiting a maximum amplitude in the radial direction of the balance spring A feature is provided.

  Because the vibration entering the generator becomes large and the amount of rotation between the electrodes (between the charging film and the counter electrode) increases too much, a regulating part for the balance spring is provided to regulate the balance spring so that it does not spread too much. The generator can be stably operated without being deformed beyond the elastic deformation region of the balance spring.

It is explanatory drawing explaining the principle of the electric power generation using an electrostatic induction phenomenon. It is a typical sectional view showing a 1st embodiment of the present invention. It is a perspective view for demonstrating 1st Embodiment of this invention. It is a perspective view for demonstrating the control part of 1st Embodiment of this invention. It is a perspective view for demonstrating the control part of 1st Embodiment of this invention. It is a top view for demonstrating the action | operation (the balance spring is the maximum amplitude) of the control part of 1st Embodiment of this invention. It is a top view for demonstrating the control part (the balance spring is the minimum amplitude) of 1st Embodiment of this invention. It is a typical perspective view for demonstrating the coupled related vibration of the rotary weight and rotary member of 1st Embodiment of this invention. It is typical explanatory drawing for demonstrating the action | operation principle of 1st Embodiment of this invention. It is a figure which shows the pattern of the counter electrode 2 and the charging film 3 of 1st Embodiment of this invention. It is a figure which shows another pattern of the counter electrode 2 and the charging film 3 of 1st Embodiment of this invention. It is typical sectional drawing which shows 2nd Embodiment of this invention. It is typical sectional drawing which shows 3rd Embodiment of this invention. It is typical sectional drawing which shows 4th Embodiment of this invention. It is a perspective view for demonstrating the control part of 4th Embodiment of this invention. It is typical sectional drawing which shows 5th Embodiment of this invention. It is typical sectional drawing which shows 6th Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. About each embodiment, the same code | symbol is attached | subjected to the part of the same structure, and the description is abbreviate | omitted.

(First embodiment)
FIG. 2 is a schematic cross-sectional view showing the first embodiment of the present invention. 3A to 3C are perspective views for explaining the first embodiment of the present invention. 4A and 4B are plan views for explaining the operation of the restricting portion of the first embodiment of the present invention. FIG. 5 is a schematic perspective view for explaining the associated vibrations of the rotary weight and the rotary member according to the first embodiment of the present invention. FIG. 6 is a schematic explanatory view for explaining the operating principle of the first embodiment of the present invention.

  The present embodiment can be mainly applied to a wristwatch, a portable electronic electrical device, and the like, but is not limited thereto. The housing will be described with a name often used in the case of a wristwatch, that is, a base plate 33 and lower and upper receivers 34 and 35. However, the housing is not necessarily limited to a wristwatch and includes a portable electronic device and the like. Includes a general housing. The base plate 33 shown in FIG. 4 is formed in a cylindrical shape for simplicity, but is not limited to this, and may be a support base or casing incorporating various parts.

First, the outline of the first embodiment will be described.
The rotating member 4 is fixed to the first shaft 8. A charging film 3 is disposed on the lower surface of the rotating member 4. On the other hand, when the fixed substrate 1 is placed and fixed on the lower receiver 34 of the housing so as to face the charging film 3, the counter electrode 2 is arranged on the surface thereof, and the rotating member 4 rotates, electrostatic induction power generation The power generated between the charging film 3 and the counter electrode 2 is output to an output unit (not shown). The first shaft 8 is pivotally supported by a vertical earthquake-resistant device 50 (here, a parashock) provided in the lower and upper receivers 34 and 35. In addition, when the tenon 8 'is thick, it may be supported by a normal bearing without necessarily using a seismic device.

  The boss portion 11 of the rotary weight 10 is rotatably installed on a support plate 36 provided on the lower surface of the upper receiver 35 via a bearing 16. The first shaft 8 passes through the boss portion 11 of the rotary weight 10, but the boss portion 11 and the first shaft 8 of the rotary weight 10 are pivotally supported so that they can rotate independently of each other. As shown in FIG. 3C, the rotary weight 10 is semicircular, and a cylindrical surface 10 'is formed on the lower surface. A spiral spring (clock terminology) 12 that is a spiral spring has one end fixed to the rotary weight 10 with a mustache 13, and the other end of the balance spring 12 is press-fitted or crimped to the first shaft 8 by a mustache ball 12 ′. It is fixed with. Since the boss part 11 and the first shaft 8 of the rotary weight 10 can rotate independently of each other, the low frequency vibration of the rotary weight 10 is fixed to the first shaft 8 via the spiral spring balance spring 12. The rotation member 4 is transmitted and rotated.

  That is, since the rotary member 4 is connected to the rotary weight 10 via a spring (spring spring 12), when the rotary weight 10 rotates, the balance spring 12 is wound around the first shaft 8, and the reaction thereof The rotating member 4 rotates. The vibration applied to the rotary weight 10 is similar to the coupled vibration, which is to be called “coupled vibration” (see FIGS. 5 and 6), and is a mutual vibration between the rotary weight 10 and the rotating member 4. Thus, the low-frequency vibration obtained from the environmental vibration can be used very efficiently.

  In the present embodiment, as shown in FIGS. 3B and 3C, a restricting portion that restricts the maximum amplitude of the balance spring 12 in the radial direction (radial direction in polar coordinates) when a large rotational torque is applied to the rotary weight 10. (Cylindrical surface 10 ′ described below) is provided. The present embodiment is characterized in that a regulating portion is provided as a deformation preventing mechanism that prevents the balance spring from being deformed beyond a certain limit. When the outer peripheral portion of the balance spring 12 expands and comes into contact with the cylindrical surface 10 ′ (restricting portion) to reach the state shown in FIG. 4A (the rotating weight 10 rotates clockwise), the outer peripheral portion of the balance spring 12 and the cylinder of the rotating weight 10. The contact pressure is increased at the contact surface with the surface 10 ′, the first shaft 8 and the rotary weight 10 are integrally rotated, and the first shaft 8 rotates with the rotary weight 10. In the case of reverse rotation, as shown in FIG. 4B, the contact spring rotates in the tightening direction, and the balance spring is wound around the shaft diameter, thereby increasing the contact pressure on the contact surface between the first shaft 8 and the balance spring. After all, the first shaft 8 is rotated with the rotary weight 10. As described above, when a large rotational torque is applied to the rotary weight 10, the rotation of the balance spring is caused by the rotation of the balance spring due to the contact with the regulating portion 10 ′ or the winding up to the shaft diameter. There is an effect that it will not be deformed beyond the range.

  That is, when a force (torque) of a certain amount or more is applied from the rotary weight 10, the first shaft 8 rotates along with the rotary weight 10, and the force is released by the rotation, so that the balance spring 12 is wound or spread and regulated. Even if it collides with the part, the force exceeding the limit can be released by the total rotation of both. For this reason, even if the outer peripheral portion of the balance spring 12 comes into contact with the cylindrical surface 10 ′ with a large torque, the balance spring 12 is not deformed such as buckling.

Furthermore, since a phenomenon to be called “coupled vibration” occurs between the rotating weight 10 and the rotating member 4, low-frequency vibration obtained from the environmental vibration is converted into the rotating weight 10 and the rotating member 4. It can be used very efficiently by both vibrations. Therefore, it is possible to generate power efficiently without depending on the direction of the generator, and environmental vibrations from all directions of the space applied to the rotary weight 10 can also be used for power generation. It is extremely efficient. In addition, the effect described in this paragraph is an effect produced in this embodiment irrespective of the presence or absence of a restriction part. The mechanism for releasing the force from the rotating weight exceeding the limit by the regulating portion of the balance spring 12 described in the previous stage is a configuration using the coupled vibration in which the rotating weight 10 and the first shaft 8 operate mutually. However, the present invention is not limited to a mechanism based on coupled vibration, and is effective for a configuration in which one end of the balance spring is fixed with a mustache, for example.
In the present embodiment, since the cylindrical surface 10 ′ is formed on the lower surface of the rotary weight 10, the axial space of the first shaft 8 can be used effectively, which is preferable in configuring a thin power generator. Is.

  In the above description, the counter electrode 2 is installed on the fixed substrate 1 and the charging film 3 is arranged on the lower surface of the rotating member 4 that rotates. However, the present invention is not limited to this. The charging film 3 and the counter electrode 2 may be reversed and attached to the fixed substrate 1 and the rotating member 4, respectively, so that the charging film 3 of the fixed substrate 1 and the counter electrode 2 of the rotating member 4 face each other. In the present embodiment, the earthquake-resistant device 50 is used for the bearing to protect the narrow shaft 8 ′ of the first shaft 8, but other well-known bearings can be used without being limited thereto. In the present embodiment, the rotary weight 10 is pivotally supported on the housing, but the rotary weight 10 can also be pivotally supported on the first shaft 8 via a bearing.

Next, details of the present embodiment will be described below.
As the electret material used as the charging film in the present invention, a material that is easily charged is used. For example, silicon oxide (SiO 2) or a fluororesin material is used as a negatively charged material. Specifically, as a negatively charged material, there is CYTOP (registered trademark), which is a fluororesin material manufactured by Asahi Glass.

  In addition, other electret materials include polymer materials such as polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polystyrene (PS), polytetrafluoroethylene (PTFE), and polyvinyldendifluoride (PVDF). ), Polyvinyl fluoride (PVF), and the like, and the silicon oxide (SiO2) and silicon nitride (SiN) described above can be used as the inorganic material. In addition, a well-known charged film can be used.

  FIG. 7 is a diagram showing a pattern of the counter electrode 2 and the charging film 3 according to the first embodiment of the present invention. FIG. 8 is a diagram showing another pattern of the counter electrode 2 and the charging film 3 according to the first embodiment of the present invention.

  Since negative charges are held on the inner surface of the charging film 3 (electret film), positive charges are attracted to the counter electrode 2 by electrostatic induction. The counter electrode 2 provided on the fixed substrate 1 and the charging film 3 provided on the rotating member 4 have a pattern as shown in FIG. 7, and the radiating portions 2 ′ and 3 ′ having the same angle from the center are equally spaced. Is formed. In the pattern of FIG. 7, as seen in the perspective view of FIG. 3A, the radiating portions 3 ′ and 3 ′ are transparent holes, and electrodes are provided between the radiating portions 2 ′ and 2 ′. It is not done. The charging film 3 is formed in a pattern including individual radiating portions 3 ′, and is connected to the first shaft 8 of the conductive member via an electrical contact and is output (the first radiating portion 3 ′ has a first value). It may be connected to the shaft 8 or each radiating portion 3 ′ may be connected to the first shaft 8 after connection wiring). When the rotating member (substrate) 4 is a metal, each radiating portion 3 ′ is directly connected to the first shaft 8 through the substrate. On the other hand, the output of the counter electrode is taken out from the outer electrode portion. Both output terminals are connected to the rectifier circuit 20. About how to take out the electric current from the 1st axis | shaft 8, what is necessary is just to perform electrical connection, rotating using the conductor structure part of a brush electrode or a bearing part.

When the rotating member 4 fixed to the first shaft 8 is rotated by the rotation driving means, the overlapping area between the electret film 3 and the counter electrode 2 is increased or decreased, and the positive charge attracted to the counter electrode 2 is increased or decreased. An alternating current is generated between the membrane and the counter electrode.
The current between the counter electrode 2 and the charging film 3 is converted into a direct current through the rectifier circuit 20 as an output unit, and is taken out to generate power.

  The rectifier circuit 20 is a bridge type, includes four diodes, and the counter electrode 2 and the charging film 3 are connected to the input side. A power supply circuit (not shown) is connected to the output side through a smoothing circuit, and the generated DC-converted current is stored in a storage battery (not shown) to supply power to the electronic device. In the present embodiment, the charging film and the counter electrode are radially patterned. However, if the overlapping area increases or decreases when rotating relative to the fixed substrate 1 and the rotating member 4, they are patterned into other shapes. May be.

  As an example of other patterns, unlike the pattern shown in the lower part of FIG. 7, the radiating portions 2 ′ of the counter electrode 2 on the fixed substrate 1 are made independent of each other as shown in the lower part of FIG. The radiating unit 2 ′ may be connected to the input side of the rectifier circuit 20 as two terminals. The pattern of the charging film 3 in the upper part of FIG. 8 is the same as that in the upper part of FIG. 7, but no output terminal is required. (Patent Document 2 is cited and supplemented. Refer to the embodiment of FIGS. 9 and 10 of Patent Document 2.) In this case, it is only necessary to extract the current from the counter electrode 2 on the stationary substrate 1 that is stationary. This is convenient because the electrical connection of the members becomes unnecessary.

  In the present embodiment, the point that the first shaft 8 to which the rotating member 4 is fixed is rotatably supported by the upper bearing portion 50 and the lower bearing portion 50 will be described below. The upper bearing portion 50 and the lower bearing portion 50 constitute an earthquake resistant mechanism. Since the upper and lower parts are formed of the same member, the upper bearing portion 50 will be described. In the following description, a description will be given based on a known seismic device as a “para-shock” used in a mechanical timepiece, but the bearing portion is not limited to this, and other known seismic devices may be used. .

  The upper bearing portion 50 shown in FIG. 2 houses a stone receiving seat 56 in an outer frame body 55. The stone receiving seat 56 is inserted into the frame body 55 and supported by spring pieces 53 attached to two sides. The outer peripheral side of the spiral spring 54 is held on the inner bottom surface of the frame 55 so as to be sandwiched between the lower surfaces of the stone receiving seats 56. A hole 52 is integrated with and connected to the spiral spring 54 at the inner periphery. The end face of the tenon 8 ′ of the first shaft 8 is pivotally supported by a stone 51 fitted in the stone receiving seat 56. The upper bearing portion 50 and the lower bearing portion 50 are fixed so that there is no backlash in the axial direction of the first shaft 8 by fitting into the upper receiver 35 and the lower receiver 34, respectively.

  In the upper and lower bearings 50 as the earthquake-resistant device, the impact load in the radial direction of the first shaft 8 is received by the spiral spring 54 and the inner diameter portion 55 ′ of the frame 55, and the axial direction is received by the spring piece 53. Function. The hole stone 52 and the stone 51 are often made of ruby, but both may be wear-resistant metal materials.

(Second Embodiment)
FIG. 9 is a schematic cross-sectional view showing a second embodiment of the present invention.

  In the first embodiment, the cylindrical surface 10 ′ that regulates the balance spring 12 is installed on the rotary weight 10. However, in this embodiment, as shown in FIG. A cylindrical member 41 (regulating portion) having 'is installed. Other configurations are the same as those in the first embodiment.

  Similar to the first embodiment, the rotating member 4 is fixed to the first shaft 8. A charging film 3 is disposed on the lower surface of the rotating member 4. On the other hand, when the fixed substrate 1 is placed and fixed on the lower receiver 34 of the housing so as to face the charging film 3, the counter electrode 2 is arranged on the surface thereof, and the rotating member 4 rotates, electrostatic induction power generation The power generated between the charging film 3 and the counter electrode 2 is output to the output unit. On the contrary, the charging film 3 and the counter electrode 2 may be installed on the fixed substrate 1 and the rotating member 4, respectively. The boss portion 11 of the rotary weight 10 is rotatably installed on a support plate 36 provided on the lower surface of the upper receiver 35 via a bearing 16. The first shaft 8 passes through the boss portion 11 of the rotary weight 10, but the boss portion 11 and the first shaft 8 of the rotary weight 10 are pivotally supported so that they can rotate independently of each other.

  In the first embodiment, the cylindrical surface 10 ′ is half of the entire circumference. However, in this embodiment, the cylindrical member 41 is installed on the upper surface of the rotating member 4 to surround the balance spring 12 with the entire circumferential surface. it can. Therefore, in this embodiment, the balance spring 12 can be covered as a whole, and the function of the restricting portion can be further ensured to prevent the spread of the balance spring. In addition, it has the same effect as the first embodiment.

(Third embodiment)
FIG. 10 is a schematic cross-sectional view showing a third embodiment of the present invention.

This embodiment is an embodiment in which the vibration of the rotary weight 10 is transmitted to the rotating member 4 through the second power transmission gear 14 and the first power transmission gear 15 in the first embodiment.
Unlike FIG. 2, in FIG. 10, the shaft to which the rotating member is fixed is the first shaft 8, and the shaft that penetrates the boss portion 11 of the rotating weight 10 is the second shaft 9. Accordingly, the gears respectively fixed to the second shaft 9 and the first shaft 8 become the second power transmission gear 14 and the first power transmission gear 15 in the order of transmission of the vibration of the rotary weight 10. (A gear train may be formed by further interposing a gear between the second power transmission gear 14 and the first power transmission gear 15.)

  The boss portion 11 of the rotary weight 10 is rotatably installed on a support plate 36 provided on the lower surface of the upper receiver 35 via a bearing 16. The second shaft 9 passes through the boss portion 11 of the rotary weight 10. The rotary weight 10 can be directly supported on the second shaft 9 via a bearing instead of being supported on the housing by the support plate 36.

  As shown in FIG. 10, the rotary weight 10 is semicircular, and a cylindrical surface 10 ′ (regulator) is formed on the lower surface. One end of the balance spring 12 is fixed to the rotary weight 10 with a mustache 13 and the other end of the balance spring 12 is fixed to the second shaft 9 by press fitting or crimping. Since the boss portion 11 and the second shaft 9 of the rotating weight 10 can rotate independently of each other, the low-frequency vibration of the rotating weight 10 is fixed to the second shaft 9 via the spiral spring spring 12. The second power transmission gear 14 is transmitted. When the rotary weight 10 rotates, the balance spring 12 is wound around the second shaft 9, and the second power transmission gear 14 rotates by the reaction.

  The first power transmission gear 15 meshes with the second power transmission gear 14 to rotate the first shaft 8 to which the first power transmission gear 15 is fixed. The rotating member 4 is fixed to the first shaft 8. A charging film 3 is disposed on the lower surface of the rotating member 4. On the other hand, when the fixed substrate 1 is placed and fixed on the lower receiver 34 of the housing so as to face the charging film 3, the counter electrode 2 is arranged on the surface thereof, and the rotating member 4 rotates, electrostatic induction power generation The power generated between the charging film 3 and the counter electrode 2 is output to the output unit. On the contrary, the charging film 3 and the counter electrode 2 may be installed on the fixed substrate 1 and the rotating member 4, respectively. The first shaft 8 is pivotally supported by an upper and lower seismic resistance device 50 (here, a parashock) provided in the lower and upper receivers 34 and 35. It may be supported by a normal bearing similarly to the second shaft 9 without being used.

  If the diameter of the second power transmission gear 14 is larger than that of the first power transmission gear 15, the rotation of the rotary weight 10 (rotational reciprocating vibration of the balance spring 12) is increased and transmitted to the first shaft 8. The rotating member 4 rotates at a higher speed. For this reason, acquisition electric power can be increased. The first power transmission gear 15 and the second power transmission gear 14 also serve as a flyhole effect. In addition, it has the same effect as the first embodiment.

(Fourth embodiment)
FIG. 11 is a schematic cross-sectional view showing a fourth embodiment of the present invention. FIG. 12 is a perspective view for explaining a restricting portion of the fourth embodiment of the present invention.

  As in the third embodiment, the present embodiment is an embodiment in which the vibration of the rotary weight 10 is transmitted to the rotating member 4 through the second power transmission gear 14 and the first power transmission gear 15. In the present embodiment, the position of the balance spring is changed between the first power transmission gear 15 and the first shaft 8. The first shaft 8, the second shaft 9, the first power transmission gear 15, and the second power transmission gear 14 are the same as in the third embodiment. (A gear train may be formed by further interposing a gear between the second power transmission gear 14 and the first power transmission gear 15.)

  The second shaft 9 is pivotally supported with respect to the housing. Although the upper and lower ends of the second shaft 9 are supported by the bearings 16, the present invention is not limited to this and may be supported by ordinary bearings like the second shaft 9 of FIG. 10. A rotating weight 10 and a second power transmission gear 14 are fixed to the second shaft 9. The first power transmission gear 15 is engaged with the second power transmission gear 14, and the rotation of the rotary weight 10 rotates the first power transmission gear 15. On the other hand, unlike the third embodiment, the first power transmission gear 15 and the first shaft 8 are independently rotatable via a bearing 16.

  As shown in FIG. 12, one end of the balance spring 12 is fixed to the first power transmission gear 15 with a mustache 13, and the other end of the balance spring 12 is press-fitted and applied to the first shaft 8 by a mustache ball 12 ′. It is fixed by tightening. Since the first power transmission gear 15 and the first shaft 8 can rotate independently of each other, the low-frequency vibration of the rotary weight 10 passes through the second power transmission gear 14, the first power transmission gear 15, and the balance spring 12. Then, it is transmitted to the rotating member 4 fixed to the first shaft 8. When the rotary weight 10 rotates, the balance spring 12 is wound around the first shaft 8, and the rotating member 4 rotates by the reaction.

  In the present embodiment, a cylindrical member 151 (regulator) having a cylindrical surface 10 ′ on the inner surface is installed on the lower surface of the first power transmission gear 15, and the balance spring 12 can be surrounded by the entire circumferential surface. Therefore, in this embodiment, the balance spring 12 can be covered as a whole, and the function of the restricting portion can be further ensured to prevent the spread of the balance spring. Similarly to the second embodiment, a cylindrical member 151 can be installed on the upper surface of the rotating member 4 to surround the balance spring 12 with the entire circumferential surface. Further, it is preferable that the first power transmission gear 15 is substantially coincident with the outer periphery of the cylindrical member 151. If this gear is smaller than the outer periphery of the cylindrical member 151, it will not be structurally established, and if the gear is too large from the outer periphery of the cylindrical member 151, the speed increasing mechanism from the rotary weight 10 will be large.

  The charging film 3 is disposed on the lower surface of the rotating member 4 fixed to the first shaft 8. On the other hand, when the fixed substrate 1 is placed and fixed on the lower receiver 34 of the housing so as to face the charging film 3, the counter electrode 2 is arranged on the surface thereof, and the rotating member 4 rotates, electrostatic induction power generation The power generated between the charging film 3 and the counter electrode 2 is output to the output unit. On the contrary, the charging film 3 and the counter electrode 2 may be installed on the fixed substrate 1 and the rotating member 4, respectively. The first shaft 8 is pivotally supported by a vertical earthquake-resistant device 50 (here, a parashock) provided in the lower and upper receivers 34 and 35, but may be pivotally supported by a normal bearing.

  Also in the present embodiment, as in the third embodiment, if the diameter of the second power transmission gear 14 is larger than that of the first power transmission gear 15, the rotational vibration of the rotary weight 10 is accelerated and the first power transmission gear 14 is increased. It can transmit to the axis | shaft 8, and the rotating member 4 rotates at higher speed. For this reason, acquisition electric power can be increased. The first power transmission gear 15 and the second power transmission gear 14 also serve as a flyhole effect. In addition, it has the same effect as the first embodiment.

(Fifth embodiment)
FIG. 13 is a schematic cross-sectional view showing a fifth embodiment of the present invention.

  A rotating member 4 and a rotating weight 10 are fixed to the first shaft 8. A charging film 3 is disposed on the lower surface of the rotating member 4. On the other hand, when the fixed substrate 1 is placed and fixed on the lower receiver 34 of the housing so as to face the charging film 3, the counter electrode 2 is arranged on the surface thereof, and the rotating member 4 rotates, electrostatic induction power generation The power generated between the charging film 3 and the counter electrode 2 is output to the output unit. The first shaft 8 is pivotally supported by a vertical earthquake-resistant device 50 (here, a parashock) provided in the lower and upper receivers 34 and 35.

  The rotary weight 10 is semicircular and has a cylindrical surface 10 '(regulator) formed on the lower surface. One end of the balance spring 12 is fixed by a beard holder 13 installed on the ground plate 33 or a bracket 37 protruding from the receiver, and the other end of the balance spring 12 is press-fitted or crimped to the first shaft 8 by a bead ball 12 '. It is fixed. The balance spring 12 is deflected by the vibration of the rotary weight 10 to increase the rotational amplitude of the rotary member 4 and improve the power generation efficiency. In this embodiment, the cylindrical surface 10 ′ is provided as a restricting portion that restricts the maximum amplitude in the radial direction of the balance spring 12 when a large rotational torque is applied to the rotary weight 10. When the portion expands, the rotation is restricted by contacting the cylindrical surface 10 '. This configuration is the same as in FIGS. 4A and 4B. Thereby, when the vibration which enters into a generator becomes large and the rotation amount of the rotation member 4 increases too much, it will prevent that it deform | transforms beyond the elastic deformation range of a balance spring.

(Sixth embodiment)
FIG. 14 is a schematic cross-sectional view showing a sixth embodiment of the present invention.

  In the sixth embodiment, in the fifth embodiment, the cylindrical surface 10 ′ for regulating the balance spring 12 is installed on the rotary weight 10. However, in the sixth embodiment, as shown in FIG. A cylindrical member 41 (regulator) having a cylindrical surface 10 ′ on the inner surface is installed on the upper surface. In the present embodiment, the rotating weight 42 is integrated and incorporated in the rotating member 4. Other configurations are the same as those of the fifth embodiment, and the effects are also the same. When the rotating member 4 and the rotating weight 10 of the fifth embodiment are separate, the balance spring 12 may be regulated by installing a cylindrical member 41 on the upper surface of the rotating member 4 as shown in FIG.

  It should be noted that the technical scope of the present invention is not limited to the above-described embodiments, and includes those in which various modifications are made to the above-described embodiments without departing from the spirit of the present invention. That is, the specific configuration described in the embodiment is merely an example, and can be changed as appropriate. In addition, the cylindrical surface 10 ′ of the restricting portion in each of the above embodiments is not necessarily limited to a continuously configured cylindrical surface, and is configured to be discontinuous to form a cylindrical surface (a part of the entire circumference). (For example, when a virtual cylindrical surface is configured with a large number of pins and protrusions) is also included in the cylindrical surface in the present specification.

DESCRIPTION OF SYMBOLS 1 Fixed board | substrate 2 Counter electrode 3 Charged film 4 Rotating member 8 1st shaft 9 2nd shaft 14 2nd power transmission gear 15 1st power transmission gear

Claims (11)

A housing;
A rotating weight rotatable with respect to the housing;
A rotating member rotatable with respect to the housing;
A fixed substrate fixed to the housing;
A charging film installed on either one of the rotating member and the fixed substrate;
The other of the front Symbol both a counter electrode disposed to face the charged membrane,
An output unit for outputting electric power generated between the charging film and the counter electrode;
A spiral spring spring that generates reciprocating rotational motion on the rotating member ;
A restricting portion for restricting the maximum amplitude in the radial direction of the balance spring ;
A first shaft fixed to the rotating member and supported by the housing;
The rotating weight is pivotally supported on the housing by a bearing at a boss portion of the rotating weight, and is fitted to the first shaft so as to be relatively rotatable,
One end of the balance spring is fixed to the rotary weight, and the other end of the balance spring is fixed to the first shaft . The regulating unit, an electrostatic induction generator according to claim 1, characterized in that a circular cylindrical surface provided in a radial direction of the hairspring. The electrostatic induction generator according to claim 2 , wherein the cylindrical surface is provided on the rotary weight. The electrostatic induction generator according to claim 2 , wherein the cylindrical surface is provided on the rotating member. A housing;
A rotating weight rotatable with respect to the housing;
A rotating member rotatable with respect to the housing;
A fixed substrate fixed to the housing;
A charging film installed on either one of the rotating member and the fixed substrate;
On the other of the two, a counter electrode disposed to face the charging film,
An output unit for outputting electric power generated between the charging film and the counter electrode;
A spiral spring spring that generates reciprocating rotational motion on the rotating member;
A restricting portion for restricting the maximum amplitude in the radial direction of the balance spring;
A first shaft fixed to the rotating member and pivotally supported by the housing;
A boss portion of the rotating weight is fitted in a relatively rotatable manner, and a second shaft rotatably supported with respect to the housing;
A first power transmission gear fixed to the first shaft;
Possess a second power transmission gear which is fixed to the front Stories second axis, and
The first power transmission gear and the second power transmission gear constitute a gear train that meshes directly or via another gear;
One end of the hairspring is fixed to the rotary spindle, electrostatic induction power generator and the other end of the hairspring is fixed to the second shaft. The electrostatic induction generator according to claim 5 , wherein the boss portion is pivotally supported on the housing or the second shaft via a bearing. The restricting portion is a circular cylindrical surface provided in a radial direction of the hairspring, the cylindrical surface, electrostatic induction according to claim 5 or 6, characterized in that provided on the rotary spindle Generator. A housing;
A rotating weight rotatable with respect to the housing;
A rotating member rotatable with respect to the housing;
A fixed substrate fixed to the housing;
A charging film installed on either one of the rotating member and the fixed substrate;
On the other of the two, a counter electrode disposed to face the charging film,
An output unit for outputting electric power generated between the charging film and the counter electrode;
A spiral spring spring that generates reciprocating rotational motion on the rotating member;
A restricting portion for restricting the maximum amplitude in the radial direction of the balance spring;
The rotary member is fixed, a first shaft journaled in said housing,
A second shaft prior Symbol rotating weight is pivotally supported on fixed the housing,
A first power transmission gear fitted to the first shaft through a bearing so as to be relatively rotatable;
And a second power transmission gear which is fixed to the front Stories second axis, and
The first power transmission gear and the second power transmission gear constitute a gear train that meshes directly or via another gear;
One end of the balance spring is fixed to the first power transmission gear, the other end of the balance spring is fixed to the first shaft ,
The electrostatic induction generator according to claim 1, wherein the restricting portion is a cylindrical surface provided in a radial direction of the balance spring, and the cylindrical surface is provided in the first power transmission gear . The electrostatic induction power generation according to any one of claims 5 to 8 , wherein a gear train is configured such that the first power transmission gear rotates at a higher speed with respect to the second power transmission gear. vessel. A housing;
A rotating weight rotatable with respect to the housing;
A rotating member rotatable with respect to the housing;
A fixed substrate fixed to the housing;
A charging film installed on either one of the rotating member and the fixed substrate;
On the other of the two, a counter electrode disposed to face the charging film,
An output unit for outputting electric power generated between the charging film and the counter electrode;
A spiral spring spring that generates reciprocating rotational motion on the rotating member;
A restricting portion for restricting the maximum amplitude in the radial direction of the balance spring;
The rotating member and the rotating weight are fixed , and the first shaft is pivotally supported by the housing.
One end of the balance spring is fixed to the housing, the other end of the balance spring is fixed to the first shaft ,
The electrostatic induction generator according to claim 1, wherein the restricting portion is a cylindrical surface provided in a radial direction of the balance spring, and the cylindrical surface is provided on the rotary weight . Electrostatic induction generator according to claim 1 0, characterized in that the rotary weight and the rotary member are integrated.

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