JP4714169B2 - Rotation mechanism integrated power generator - Google Patents

Description

  The present invention relates to a rotating climate integrated power generator that generates electric power by converting the energy of a fluid such as water or air into rotational energy, and more particularly to a rotating mechanism integrated power generator that supplies power to a portable device from daily operations such as walking. It is.

  In recent years, functions installed in mobile devices have increased and power consumption has increased, and thus power supplies such as mobile phones and music players may be cut off when going out. In order to solve this problem, it is necessary that the capacity of the battery mounted on the device is sufficiently large, can be charged anywhere even when going out, or obtains electric power by power generation.

  However, in the current battery technology, when the capacity of the battery is increased, the size and weight of the battery increase, and the portability deteriorates. There is currently no system that can be charged anywhere when going out. There are portable generators such as hand-charged chargers, but there is a problem that tires must be consciously charged in order to obtain a sufficient amount of power generation.

  Therefore, walking power generation has been devised to generate power without being conscious of it. For example, Patent Document 1 discloses a method in which a piezoelectric element is arranged in an operating part inside a shoe such as a shoe, and the piezoelectric element is distorted by stress caused by walking to obtain electric power. Patent Document 2 discloses walking motion. Discloses a method for obtaining electric power by electromagnetic induction by changing the distance between a magnet and a coil attached to the inside of the shoe.

  Also, by walking, the handle inside the shoe is pushed by weight, and the generator is rotated by the work to obtain power, or a pump is placed inside the shoe, air is taken in from the outside by walking pressure, and the turbine is A method for obtaining electric power by rotating a generator to rotate has been devised.

JP 2004-96980 A Japanese Patent No. 2870330

  However, the above-described conventional technique has a problem in practicality. For example, the method using a piezoelectric element has an advantage that there is almost no sense of incongruity during walking, but with the current technology, the output is at most several tens mW with a size that fits into the shoe sole. For example, the power consumption of a communication device such as a mobile phone is 1 W or more, but there is no practical material that can output 1 W or more.

  As for the method using electromagnetic induction, the electromotive voltage of electromagnetic induction is proportional to the differential of the change in the distance between the magnet and the coil, but an output of 1 W or more cannot be expected at a normal walking speed.

  The method of pushing the handle with the body weight can expect an output of 1 W or more, but a speed increasing mechanism is necessary to increase the efficiency. Therefore, although the gear is used in the conventional method, since noise is generated during operation from the gear, the sound is always generated from the feet when walking, which gives the user an unpleasant feeling. Further, the gear part is liable to deteriorate due to friction, and there is a problem in durability. In addition, if the stroke is increased in order to increase the amount of power generation, there is a problem that a sense of incongruity occurs during walking.

  Further, the method of rotating the turbine with the air pressure taken in from the outside can expect an output of 1 W or more, and there is no noise because the pressure change of the gas is used as the speed increasing mechanism. However, since the air near the shoe sole is close to the ground, it easily takes in dust, rainwater, and the like. Therefore, operating parts such as a turbine are likely to be worn or deteriorated. There are various types of turbines, such as propeller type, Francis type, Pelton type, and turbo type. Generally, any type used for power generation requires a stable flow rate and pressure against the fluid. If it deviates from the rotational speed, the efficiency will deteriorate. In particular, the efficiency is remarkably reduced when the rotational speed is lower than the rated value. During walking, the foot repeatedly touches and leaves the ground, so the pressure obtained by walking fluctuates greatly, and it is extremely inefficient if a general turbine is used. Also, it is difficult to incorporate various parts such as turbines and generators in the limited volume of the sole, which is not practical because the shoes become large or the shape of the shoes becomes strange. It was.

  As described above, the technology for generating power unconsciously in the present situation has problems such as low power, discomfort to the user, fragility, energy loss, and large volume. None were practical.

  The present invention has been made to solve the above-described problems in the prior art and to solve the problems, and by integrating a turbine and a generator with low loss even in a situation where the flow rate and pressure greatly change, Solves the problem that the volume of the conventional power generation device was large, can be used to charge the mobile device without conscious work in the casual operation of human daily life, and can prevent the battery of the mobile device from running out It aims at providing a typical power generation device.

  In order to solve the above-described problems and achieve the object, a rotating mechanism-integrated power generator according to the invention of claim 1 includes an outer cylinder member having a fluid inlet and outlet and an inner side of the outer cylinder member. A rotatable rotor provided, and a vane provided so as to protrude and retract with respect to the rotor, the tip of the vane being in contact with the inner wall of the outer cylinder member, and the suction port side and the discharge port side In a rotating mechanism that converts a fluid pressure difference between the suction port side and the discharge port side into a rotation of the rotor by receiving the pressure difference between the suction port side and the discharge port side, the vane is magnetized or is placed inside the vane A magnet is provided, and a ferrite core around which a conductor coil is wound is provided inside the outer cylindrical member, and the magnetic flux density in the ferrite core is changed by an alternating magnetic field generated by the rotation of the rotor, thereby generating a voltage in the conductor coil. Characterized in that to.

  According to a second aspect of the present invention, there is provided the rotating mechanism-integrated power generator according to the first aspect of the present invention, wherein the vane is magnetized or has a magnet inside, and a ferrite core inside the outer cylinder member. The ferrite core is arranged so that a magnetic force between the two acts in a direction in which the vane protrudes.

  According to a third aspect of the present invention, there is provided the rotating mechanism-integrated power generator according to the first aspect, wherein the magnetic force acting between the plurality of vanes acts on the vane so that the vanes protrude in the protruding direction. It is characterized by the arrangement of magnets or magnets.

  According to a fourth aspect of the present invention, there is provided the rotating mechanism-integrated power generation device according to any one of the first to third aspects, wherein two or more fluid tanks whose internal volume is changed by an external load are provided. And a flow path for allowing fluid to flow between the two or more fluid tanks based on the change in the internal volume, wherein the outer cylinder member is provided on the flow path.

  According to a fifth aspect of the present invention, there is provided the rotating mechanism-integrated power generation device according to the fourth aspect of the invention, wherein the plurality of flow paths are provided, and the plurality of flow paths are pipes having backflow prevention valves. When the pressure is applied to any of the fluid tanks, the flowing fluid rotates the rotor in the same direction.

  According to a sixth aspect of the present invention, there is provided the rotating mechanism-integrated power generation device according to the fourth or fifth aspect of the present invention, wherein the weight of the fluid tank is changed in accordance with the operation of the user. The apparatus further comprises a mounting means for mounting on the body, and generates power by the user's action.

  According to a seventh aspect of the present invention, in the rotation mechanism integrated power generation device according to the sixth aspect of the present invention, the wearing means is a shoe, and the weight is applied to the vicinity of the toe of the user's foot and the vicinity of the heel It is characterized in that a load is applied to a fluid tank that is different from the state in which the body weight is applied.

  According to the first aspect of the present invention, the rotating mechanism-integrated power generator integrates the rotating mechanism that converts fluid energy into mechanical energy and the power generating mechanism that converts mechanical energy into electrical energy, so By creating an alternating magnetic field by the vanes located in the outer peripheral portion, the speed at which the magnetic charge of the vanes moves can be maximized, that is, the amount of change in the magnetic field can be increased. For this reason, compared with the structure which equips a turbine and a generator separately and connects an axis | shaft, there exists an effect that it is small and lightweight and can obtain the electric power generating apparatus with high voltage generation efficiency with the high voltage obtained.

  According to the second aspect of the present invention, the rotating mechanism-integrated power generator rotates while the magnetic vane is attracted by the magnetic force between the ferrite core and the inner wall of the outer cylinder member. This eliminates the need for a mechanism (for example, a spring) for pushing out the vanes, and can further reduce the size of the apparatus.

  The rotating mechanism-integrated power generator according to the invention of claim 3 rotates while the vanes are pushed out of the rotor and contact the inner wall of the outer cylinder member due to repulsion between the magnetic charges of the plurality of vanes. This eliminates the need for a mechanism (for example, a spring) for pushing out the vanes, and can further reduce the size of the apparatus.

  According to a fourth aspect of the present invention, there is provided a rotating mechanism-integrated power generation device comprising two or more fluid tanks whose inner volume changes due to external load, and the two or more fluid tanks based on the change in the inner volume. A flow path for allowing fluid to flow between the two, and by providing the outer cylinder member on the flow path, if there are two or more places where pressure or weight changes, the pressure and flow rate change greatly. This produces the effect of being able to generate power efficiently even in situations where it does.

  Further, the rotating mechanism-integrated power generator according to the invention of claim 5 can always supply the rotational force without stopping the rotating device from rotating due to inertia by rotating the rotating device in the same direction. There is an effect that efficiency is improved.

  According to a sixth aspect of the present invention, the rotating mechanism-integrated power generation device further includes mounting means for mounting on the user's body so that the weight applied to the fluid tank changes with the user's operation. By generating electricity by user's action, fluid is made to flow by user's action, and power is generated efficiently by using the pressure and momentum of flow, so it is conscious in the casual action of human daily life There is an effect that power can be generated efficiently without work.

  Further, the rotating mechanism integrated power generation device according to the invention of claim 7 causes the fluid to flow by moving the weight of the user, and efficiently uses the pressure and momentum of the flow. There is an effect that power can be generated efficiently in daily operation.

  Exemplary embodiments of a rotating mechanism-integrated power generator according to the present invention will be described below in detail with reference to the accompanying drawings.

  In the present invention, rotational energy is extracted from an energy source whose flow rate and flow rate vary greatly. In this embodiment, a flow is generated from human walking, and the rotational energy extracted from the flow as an energy source is used for power generation. The case of using will be described.

  First, FIG. 1 shows a schematic configuration of a rotating device as a premise of the present invention. In the same figure, the top view of the turbine 1 which is a rotation apparatus, and the AA sectional view are shown. In the turbine 1, a rotor 12 is eccentrically arranged in a casing (outer cylinder) 11 having a circular inner wall. A plurality of vanes (six vanes 13a, 13b, 13c, 13d, 13e, and 13f in the figure) are accommodated in the rotor 12, and each vane is pushed by a spring and is always in contact with the inner wall of the casing 11. Yes. The spring is provided for each vane, and for example, the spring 14d corresponds to the vane 13d.

  When a pressure difference occurs between the fluid at the suction port 15 and the fluid at the discharge port 16, a force of cross-sectional area × pressure is applied to each vane, and this force becomes the rotational force of the rotor 12. For example, when the pressure at the suction port 15 becomes high, pressure is applied to each vane, but the rotor is located at an eccentric position with respect to the casing. The cross-sectional area is also different. Since the rotor rotates by the sum of the rotational direction components of the force applied to each vane, as a result, it rotates clockwise in the figure.

  Inside the rotor 12, magnets (in the figure, magnets 17a, 17b, 17c, 17d, 17e, and 17f) are embedded. A U-shaped ferrite core is attached to the casing 11 so as to sandwich the magnet from the upper surface and the lower surface, and a coil is wound around the ferrite core. It is installed so as to be able to form a magnetic path from the north pole of the rotor magnet, through the ferrite core, through the coil, and back to the south pole of the rotor magnet. For example, the magnetic flux emitted from the magnet 17a passes through the ferrite core 18a, passes through the coil 19a, and returns to the magnet 17a again.

  When the rotor rotates in this configuration, the magnet embedded in the rotor also rotates, and an alternating magnetic field is generated at the upper and lower portions of the rotor. Due to this alternating magnetic field, the magnetic flux density in the ferrite core changes, an induced electromotive force is generated in the coil, and the electric power can be taken out.

  By integrating the turbine that converts fluid energy into rotational energy and the generator that converts rotational energy into electrical energy, downsizing can be realized, making it ideal for incorporation in narrow places such as shoe soles. Become. Moreover, since it is not necessary to take out the power shaft from the inside of the turbine filled with fluid into the outside air, the rotor can be completely sealed in the casing, and the loss related to sealing such as an O-ring can be eliminated. I can do it.

  Here, in order to increase the induced electromotive force generated in the coil, it is necessary to increase the amount of change in the magnetic field. Therefore, in the present invention, as shown in FIG. 2, power is generated by incorporating a magnet inside the vane.

  Thus, since the magnet rotates with a longer radius than the configuration in which the magnet is embedded in the rotor, the magnet rotates at a higher speed if the rotation speed of the turbine is the same. For this reason, the voltage induced in the coil becomes higher and it becomes easier to obtain power.

  Here, the configuration in which the magnet is embedded in the vane is described as an example, but the same effect can be obtained even when the vane is magnetized.

  Further, in such a configuration in which a magnet is provided inside the vane (or the vane itself is magnetized), an attractive force acts between the vane and the ferrite coil. Using this force, the vane can be pulled out of the rotor even if the spring for protruding the vane is removed. A configuration example in this case is shown in FIG.

  As shown in the figure, in the configuration in which the vane is pulled out by a magnetic force, the position of the ferrite core is adjusted so that a force for pulling out the vane works just until the vane contacts the inner wall of the casing or slightly outside the inner wall of the casing.

  In this way, the tip of the vane is always in contact with the inner wall of the casing by the magnetic force, so that the friction between the vane and the casing generated by being pressed against the contracted spring, and the elasticity required to expand and contract the spring. Loss of energy can be eliminated. Further, since a space for storing the spring is not required, the size can be reduced.

  By the way, in the configuration of FIGS. 2 and 3, the S pole and the N station are arranged in the vane in the direction from the upper surface to the lower surface, but when the pressure of the fluid is relatively high, the fluid is separated from the vane and the inner wall of the casing. There may be a problem that the efficiency is lowered due to the gap between the gaps.

  Therefore, in order to prevent the fluid from leaking from the gap between the vane and the casing by bringing the vane and the inner wall of the casing into contact with each other with a stronger force, as shown in FIG. It is effective to arrange the N pole.

  In this case, the ferrite core is disposed so as to extend from the side surface inside the casing to the lower surface or the upper surface. Thereby, the attractive force which acts between a magnet and a ferrite core becomes a rotor radial direction, and becomes stronger than the structure of FIG. Further, if the inner poles of the magnets are the same for all the vanes, the magnets in the vane will repel each other in the other vane. This repulsive force is also a force that pushes the vane outward and contacts the inner wall of the casing. Therefore, since the vane can be pressed against the casing without using a spring, it is possible to make a turbine that is small and has little leakage loss.

  The fluid introduced into the turbine may be water, oil, or air, and can generate electricity as long as there is a pressure difference. In addition, by supplying fluid to the turbine using two or more tanks and pipes in which the fluid is confined, it is possible to generate electric power as long as the pressure difference and the load change alternately.

  For example, in the configuration shown in FIG. 5, two tanks 31 and 32 are connected by a pipe 33, and a turbine 34 is located between them. When pressure is alternately applied to the tank 31 and the tank 32, the fluid moves in the pipe 33. A turbine 34 is provided on the moving system path to generate power.

  The electric power generated in the turbine 34 is sent to the electric storage element 36 through the charging circuit 35 and stored. The charging circuit 35 is located between the turbine 34 and the power storage element 36 and has a function of rectifying an alternating current generated in the turbine 34 and a function of adjusting the voltage of the power storage element 36.

  Here, the configuration in the case where the generated electric power is once stored in the electric storage element 36 is described as an example. However, for example, the electric power generated in the turbine 34 may be directly output to the outside.

  By the way, in the structure shown in FIG. 5, when the tanks 31 and 32 are pushed alternately, the direction of the fluid flowing through the turbine 34 is reversed. That is, the turbine repeats clockwise and counterclockwise alternately. This repeats the fact that the rotating turbine is temporarily stopped and rotated in the reverse direction, so that a loss for stopping the rotation of the turbine and a loss due to a large static friction are generated.

  An example of a structure in which the rotation of the turbine is not stopped by limiting the rotation of the turbine to only one direction will be described with reference to FIG. As shown in the figure, the tanks 41 and 42 are connected by pipes 43 and 44. Further, the pipe 45 is connected to the pipes 43 and 44, and the check valve 46, 47, 48 and 49 allows the fluid to always flow through the pipe 43 only in one direction.

  For example, when pressure is applied to the tank 41, the check valves 47 and 48 are closed, and the liquid flows from the check valve 46 through the pipe 45 to the check valve 49. Similarly, when pressure is applied to the tank 42, the check valves 46 and 49 are closed, and liquid flows from the check valve 47 through the pipe 45 to the check valve 48. The turbine 50 in the middle of the pipe 45 is rotated by the pressure and momentum of the liquid flowing through the pipe 45.

  As a result, when pressure is alternately applied to the two tanks, fluid continuously flows into the turbine in the same direction, the turbine can continue to rotate in the same direction, and the rotation speed does not drop. The generated power is stored in the charging element 52 through the charging circuit 51.

  The place where this power generator is used can be any place where a pressure difference can be created alternately. For example, as shown in FIG. 7, a point where pressure is applied in the shoe, for example, the base of the heel and toes It is also possible to place a tank underneath and generate electricity using the change in the center of gravity associated with walking.

  In the present invention, power can be generated not only during walking and running, but also by moving the center of gravity. For example, just standing on a swinging train shifts the center of gravity due to the shaking of the train and can generate electricity.

  Note that the configuration shown in FIG. 7 is merely an example, and can be implemented with appropriate modifications. The installation location is not limited to the shoe, and it is also possible to generate electricity by installing a pressure difference, for example, a hip joint as shown in FIG. 8 and bending and stretching the hip joint.

  As described above, in the rotating mechanism-integrated power generation device according to the present invention, the suction side and the discharge side are completely separated from each other by the vane rotating while contacting the inner wall of the casing. As a result, the flow rate and pressure are small, and even if the rotation is extremely low, the fluid does not flow through the gap between the turbines. If the pressure of the fluid exceeds the static friction, the turbine can be reliably rotated.

  Further, since the rotation is performed by utilizing the pressure difference of the fluid, the speed of the fluid can be reduced. Therefore, even if the size of the rotating device is reduced, the loss is small as compared with the conventional turbine.

  Therefore, it becomes possible to use various energies that could not be used because a stable flow rate and flow rate cannot be obtained. For example, it is a force caused by human movement.

  Moreover, since the electric power generating apparatus which concerns on this invention incorporates the electric power generation function in the turbine, the whole apparatus can be reduced in size. Therefore, it is easy to wear on the body, and power can be efficiently obtained by an operation that applies pressure, such as walking, in daily life.

  Further, by rotating the turbine with the fluid confined in the two tanks, impurities such as dust can enter the interior, and the turbine and the tank can be prevented from deteriorating. As this fluid, a fluid of an optimum material that is easy to turn the turbine can be used, and the efficiency of the turbine can be increased.

  Furthermore, since the soft tank containing the fluid also serves to absorb the impact on the foot during walking and running, the function of protecting the original foot of the shoe is not lost.

  According to the present invention, the battery of an existing portable device can be prevented. In addition, due to the high power consumption, various portable devices that have been impractical until now can be used practically in combination with the present invention. Further, by using the power generation device, the user can reduce the cost of electricity and the dry battery and contribute to the environment by not using the commercial power generated by discharging CO2 or the dry battery. In addition, they will actively exercise such as walking to obtain electric power, and can expect health benefits.

  As described above, the rotation mechanism-integrated power generation device according to the present invention is useful as a device that efficiently converts the energy of a fluid into rotation energy to generate power, and generates power by human power, particularly power generation by daily operations such as walking. Suitable for

It is a schematic block diagram which shows the schematic structure of the rotating apparatus used as the premise of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing a schematic configuration of a rotating mechanism-integrated power generator that is an embodiment of the present invention. It is a schematic block diagram which shows the schematic structure of the rotation mechanism integrated power generator which draws out a vane with magnetic force. It is a schematic block diagram which shows the general | schematic structure of the rotation mechanism integrated power generator which pushes out a vane with the magnetic force between vanes. It is explanatory drawing explaining the case where a rotation mechanism integrated power generator is installed in the fluid movement path | route between tanks. It is explanatory drawing explaining an example of the structure which rotates a turbine in the same direction. It is explanatory drawing explaining the example which applies this invention to shoes. It is explanatory drawing explaining the case where this invention is mounted | worn to a waist.

Explanation of symbols

1, 34, 50 Turbine 11 Casing 12 Rotor 13a, 13b, 13c, 13d, 13e, 13f, 23a, 23b, 23c, 23d Vane 14a, 14b, 14c, 14d, 14e, 14f, 27 Spring 15 Inlet 16 Outlet 17a, 17b, 17c, 17d, 17e, 17f, 23a, 23b, 23c, 23d Magnet 31, 32, 41, 42 Tank 33, 43, 44, 45 Pipe 35, 51 Charging circuit 36, 52 Power storage element 46, 47, 48, 49 Check valve

Claims (7)

An outer cylinder member having a fluid inlet and outlet, a rotatable rotor provided inside the outer cylinder member, and a vane provided so as to protrude and retract with respect to the rotor, The tip of the vane is in contact with the inner wall of the outer cylinder member to isolate the suction port side from the discharge port side, and the pressure difference between the suction port side and the discharge port side is received by the vane and the rotor In the rotation mechanism that converts to rotation,
The vane is magnetized or has a magnet inside the vane,
A ferrite core around which a conductive wire coil is wound is provided inside the outer cylindrical member,
A rotating mechanism-integrated power generation apparatus, wherein a magnetic flux density in the ferrite core is changed by an alternating magnetic field generated by rotation of the rotor to generate a voltage in the conductive coil.   The ferrite core is arranged so that a magnetic force between the magnetized vane having a magnet or an inner magnet and a ferrite core inside the outer cylindrical member works in a direction in which the vane protrudes. The rotating mechanism integrated power generator according to claim 1.   2. The rotating mechanism-integrated power generator according to claim 1, wherein the magnetic force acting between the plurality of vanes is magnetized on the vanes or the magnets are arranged so that the vanes protrude in a protruding direction. Two or more fluid tanks whose internal volume changes due to external load,
A flow path for flowing a fluid between the two or more fluid tanks based on the change in the internal volume;
Further comprising
The rotating mechanism-integrated power generator according to any one of claims 1 to 3, wherein the outer cylinder member is provided on the flow path.   By providing a plurality of the flow paths, and the plurality of flow paths are pipes having a backflow prevention valve, the flowing fluid can move the rotor in the same direction when pressure is applied to any of the fluid tanks. The rotating mechanism-integrated power generator according to claim 4, wherein the rotating mechanism-integrated power generator is rotated.   5. The apparatus according to claim 4, further comprising mounting means for mounting on the user's body so that a weight applied to the fluid tank is changed according to a user's operation, and generating electricity by the user's action. Alternatively, the rotating mechanism integrated power generation device according to 5.   The load device is a shoe, and a load is applied to different fluid tanks in a state in which a weight is applied in the vicinity of a toe of the user's foot and a state in which the weight is applied in the vicinity of a heel. Rotation mechanism integrated power generator.

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