JP2006329093A - Power generating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power generating device capable of generating power efficiently and having the appearance protruding not from a running passage. <P>SOLUTION: This power generating device is provided with a seesaw 1 provided with a shaft 2 provided in the running passage R of a vehicle and being vertical for the direction of running and a tread 3 whose substantially center is supported by the shaft 2 so as to swing and which forms a part of the running passage R of the vehicle, a conversion part 10 for converting swing movement of the seesaw 1 into rotation movement, and a power generator G to which the rotation movement converted in the conversion part 10 is transmitted to swing the tread 3 by passing of the vehicle at a time and generate electric power on its both end sides. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement of a power generation device.

As this kind of power generation device, for example, a pump that is embedded in a vehicle traveling path and performs a pumping operation by passing a vehicle, a fluid pressure motor that is driven by fluid pressure sent from the pump, and a generator that is driven by a liquid pressure motor (For example, refer to Patent Document 1) or those equipped with a piezoelectric machine (for example, refer to Patent Document 2) that generates electric power using the fluid pressure generated by the pump.
Japanese Patent Application Laid-Open No. 55-139983 (FIGS. 1 and 2) JP-A-10-73073 (FIG. 1)

  However, the conventional power generator described above is inefficient because the pump reciprocates only once when the vehicle passes.

In addition, the pressing part for pressing the pump downward from the traveling road also protrudes visually, which makes the driver of the vehicle hesitate to pass and causes the driver to bypass the power generation device, depending on the case Therefore, it is conceivable that traffic congestion will occur on the road where the power generator is not installed. Therefore, an object of the present invention is to provide a power generator having an appearance that can efficiently generate power and does not protrude from the road. Is to provide.

  In order to achieve the above-described object, the power generation device is supported by an axis perpendicular to the traveling direction installed on the vehicle traveling path and the shaft so as to be able to swing substantially at the center, thereby forming a part of the vehicle traveling path. A seesaw provided with a tread, a conversion unit that converts the swaying motion of the tread into a rotary motion, and a generator that transmits the rotary motion converted by the conversion unit.

  According to the present invention, the seesaw treading plate swings once through the vehicle, so that power can be generated twice, and the power generation efficiency is improved compared to the conventional power generation apparatus.

  Further, the seesaw can be flush with the vehicle traveling path, so that the driver of the vehicle trying to pass through the power generation device does not feel uncomfortable from the outside, and the driver is allowed to pass the power generation device. There is nothing to do.

  Therefore, since it does not cause a situation that the driver intentionally bypasses the power generation device, not only does it cause a traffic jam on the vehicle traveling path where the power generation device is not installed, but also the power generation device. This makes it possible to generate electricity efficiently by promoting the passage of the battery, and the practicality of this type of power generation device is improved.

  The present invention will be described below based on the embodiments shown in the drawings. FIG. 1 is a schematic diagram of a power generation device according to an embodiment. FIG. 2 is a circuit diagram of the power storage device. FIG. 3 is a schematic view of a modification of the embodiment. FIG. 4 is a schematic diagram of a power generation device according to another embodiment.

  As shown in FIG. 1, a power generation device according to an embodiment includes a shaft 2 perpendicular to a traveling direction installed on a vehicle traveling path R and a vehicle traveling path that is pivotally supported by the shaft 2 so as to be able to swing substantially in the center. A seesaw 1 having a tread 3 that forms part of R, a conversion unit 10 that converts the vertical motion of the seesaw 1 into a rotational motion, and a power generation that transmits the rotational motion converted by the conversion unit 10 Machine G.

  Hereinafter, in detail, the part where the seesaw 1 of the vehicle travel path R is installed is dug down and recessed so that the tread 3 can swing about the shaft 2 and both ends thereof can move up and down. 20 is formed, and the shaft 2 is provided so as to hang over the side of the recess 20 in a direction penetrating the paper surface in the drawing perpendicular to the traveling direction of the vehicle.

  The tread plate 3 is pivotally supported by the shaft 2 so as to be able to swing substantially in the center. The tread plate 3 swings about the shaft 2 and both end portions thereof can move up and down by the depth of the recess 20. It has become.

  Further, a spring 21 is interposed between the recess 20 and both ends of the tread 3, and in a state where no load is applied to the tread 3, the tread 3 is flush with the vehicle travel path R. It comes to become.

  Further, the conversion unit 10 includes two rods 11 that reciprocate in cooperation with the swaying motion of the tread plate 3, each claw wheel 12 that is rotated in one direction by the reciprocation of each rod 11, and the rod 11 that claws the rod 11. An urging means 18 for urging in the direction of the vehicle 12 is provided.

  Specifically, each rod 11 is connected to both ends of the tread plate 3 so as to be swayable, and reciprocates in the vertical direction in accordance with the swaying motion with the shaft 2 of the tread plate 3 as a fulcrum.

  The claw wheel 12 includes a circular main body 13 and a claw 14 that engages with a tip that is the lower end of the rod 11 provided on the outer periphery of the main body 13 in the figure. And an engagement surface 15 that engages with the lower end of the rod 11 along the normal line of the outer periphery circle of the main body 13 and a curved surface 16 that is bent from the tip of the engagement surface 15 toward the outer periphery of the main body 13. Has been.

  Further, the rod 11 is urged from the side toward the claw wheel 12 by an urging means 18 such as a spring, and the rod 11 is always pressed against and brought into contact with the claw wheel 12.

  Therefore, the ratchet wheel 12 provided on the right side in the figure is engaged in the counterclockwise direction in the figure when the engagement surface 15 is engaged with the tip of the rod 11 with respect to the downward movement of the rod 11. On the other hand, when the rod 11 moves upward, the tip of the rod 11 slides on the curved surface 16 and does not engage with the claw 14, and the claw wheel 12 does not rotate. .

  That is, in this conversion unit 10, the reverse rotation of the claw wheel 12 is prevented, and the claw wheel 12 always rotates in one line with respect to the reciprocating movement of the rod 11.

  The central portion of the claw wheel 12 is connected to the shaft 25 of the generator G, and the swinging motion of the tread plate 3 is converted into the rotational motion of the claw wheel 12 by the conversion unit 10. It will be transmitted to the generator G.

  Further, a flywheel 26 is provided on the shaft 25 of the generator G, and the flywheel 26 accumulates the kinetic energy of the shaft 25 rotated by the claw wheel 12 to promote the rotational movement of the generator G. It is like that.

  Although the power generation device G is configured as described above, the operation will be described below. For example, when the vehicle tries to pass through the tread 3 from the left in FIG. 1, first, the front wheel of the vehicle gets on the left of the tread 3. The tread board 3 rotates counterclockwise in the figure with the shaft 2 as a fulcrum, and pushes down the left rod 11 downward, and the shaft 25 rotates together with the ratchet wheel 12 so that the generator G on the left side in the figure generates power.

  Subsequently, as the vehicle moves to the right in the figure, the vehicle weight loaded on the tread 3 gradually moves to the right, so that the vehicle now moves to the tread 3 as the vehicle progresses. Is rotated clockwise, the right end side of the tread plate 3 moves downward, and the right rod 11 in the figure is pushed downward, and the right generator G in the figure generates power.

  Therefore, this power generation device can generate power twice because the tread plate 3 of the seesaw 1 is swung by the passage of the vehicle once, and the power generation efficiency is improved with respect to the conventional power generation device.

  Further, since the seesaw 1 can be flush with the vehicle travel path R, the driver of the vehicle trying to pass through the power generation device does not feel strange from the outside, and the driver passes the power generation device. There is no hesitation.

  Therefore, since it does not cause a situation that the driver intentionally bypasses the power generation device, not only does it cause a traffic jam on the vehicle traveling path where the power generation device is not installed, but also the power generation device. This makes it possible to generate electricity efficiently by promoting the passage of the battery, and the practicality of this type of power generation device is improved.

  Each output terminal of the generator G is connected to a power storage device C that stores the electricity generated by the generator G. As shown in FIG. 2, this power storage device C includes a plurality of electric double layer capacitors 30 connected in series, and a resistance connected to each electric double layer capacitor 30 in parallel and connected in series. A first capacitor C1 configured with a capacitor 31, a plurality of electric double layer capacitors 32 connected in series, and a resistor connected in series to each electric double layer capacitor 32 and each connected in series The second capacitor C2 configured by the capacitor 33, the control unit 40, the converter 41, and the diode 42, and both ends of the first capacitor C1 are connected to the generator via the input terminals 50 and 51 of the power storage device, respectively. G is connected to both ends of the second battery C2. Furthermore, both ends of the second battery C2 are connected to the converter 41. Moreover, the control part 40 is installed in the middle of the wiring which connects one side of the 1st battery C1 and one side of the 2nd battery C2. In the present embodiment, an electric double layer capacitor capable of increasing the capacity so as to store a large charge is used.

  Then, when the voltage difference between both ends of the first capacitor C1 becomes constant, the control unit 40 connects the first capacitor C1 and the second capacitor C2, and discharges the first capacitor C1 to the second capacitor. When C2 is charged and then the voltage of the first capacitor C1 becomes a predetermined voltage or lower, the connection between the first capacitor C1 and the second capacitor C2 is disconnected. Specifically, for example, a charge controller or the like may be used for the control unit 40.

  Further, the converter 41 converts current into direct current or alternating current when the second battery C2 is discharged.

  Further, a diode 42 for rectifying current is installed between the first capacitor C1 and the input terminal 50, so that the current is prevented from flowing in the reverse direction, and the first capacitor C1 being charged is discharged. It is prevented.

  As described above, the generator G generates power by the swaying of the tread 3, but the power generation is performed when the vehicle passes over the tread 3, and there is a case where power generation is not continuously performed. Therefore, the generator G may not be able to supply a stable power, but in the power storage device described above, the first power storage device C1 is charged and the second power storage device C2 is charged when the voltage exceeds a certain voltage. As a result, stable power supply can be performed.

  Next, a power generation device according to a modification of the embodiment shown in FIG. 3 will be described. In this modification, an amplifying means for amplifying the swing distance of the tread plate 3 and increasing the reciprocating distance of the rod 61 is added to the conversion unit 60.

  The conversion unit 60 of the power generator in this modification includes a pressing member 65 slidably coupled to both ends of the tread 3 of the seesaw 1, an lever device 62 as an amplifying means, a rod 61, and an embodiment. It is provided with the same claw wheel 12 and the urging means 18.

  The upper end of the pressing member 65 is slidably connected to the end of the tread plate 3, and can be reciprocated in the vertical direction by the swaying of the tread plate 3, and the lower end of the pressing member 65 is the link 63 of the lever device 62. It is in contact with one end.

  The lever device 62 includes a link 63 and a fulcrum 64, and the other end of the link 63 supports the lower end of the rod 61 from below. In the case of this modification, the lower end side outer periphery of the rod 61 is supported by a support portion 66 having a curved surface, and the rod 61 can be reciprocated in the vertical direction by being supported by this support portion 66. In addition, the swing required for exhibiting the function of preventing the reverse rotation of the claw wheel 12 on the tip side is made possible. Further, the fulcrum 64 is provided from the pressing member 65, and the vertical reciprocation of the pressing member 65 is amplified and transmitted to the rod 61.

  The rod 61 and the pressing member 65 may be slidably connected to the link 63 by hinge coupling or the like.

  And in the conversion part 60 in this modification, with the said structure, it is possible to amplify the swing distance of the tread board 3, and to increase the reciprocating distance of the rod 61, and to the electric power generating apparatus in one Embodiment. In comparison, since the reciprocating distance of the rod 61 is amplified, it is possible to increase the rotation amount of the ratchet wheel 12. Therefore, by providing this amplification means, it becomes possible to generate power more efficiently.

  Furthermore, a power generation device according to another embodiment will be described. As shown in FIG. 4, this power generation device is configured to include a seesaw 1, a conversion unit 70, and a generator G that are substantially the same as those in the embodiment provided on the vehicle travel path R. A portion different from the form of FIG.

  Hereinafter, the different conversion unit 70 will be described in detail, and other similar parts will not be described in detail because only the same reference numerals are given because the description is duplicated.

  The conversion unit 70 includes a hydraulic cylinder device 71 that expands and contracts by a swinging motion of the tread plate 3 and a hydraulic circuit 80 that rotates the hydraulic motor 75 in one line by the expansion and contraction of the hydraulic cylinder device 71. ing.

  The hydraulic cylinder device 71 includes a cylinder 72 that is stationary with respect to the vehicle traveling path R, a piston 73 that is slidably inserted into the cylinder 72, one end connected to the piston 73, and the other end to a tread. And a piston rod 74 that is slidably and rotatably connected to the tread plate 3 by a shaft 74a that is inserted into a guide hole 3a provided in the cylinder 3, and the cylinder 72 is filled with a liquid such as hydraulic oil.

  For example, when the tread plate 3 rotates clockwise in the figure, the hydraulic cylinder device 71 on the right side contracts when the piston rod 74 is pushed by the tread plate 3, and on the other hand, when the tread plate 3 rotates counterclockwise. The piston rod 74 is operated so as to be pulled up and extended by the tread plate 3 in the drawing. Therefore, the left and right hydraulic cylinder devices 71 are expanded and contracted by the swaying motion of the tread plate 3.

  The hydraulic circuit 80 includes a tank 82, passages 82 and 83 communicating with the tank 81 between the upper chamber A and the lower chamber B partitioned by the piston 73 in the cylinder 72, and the upper chamber A and the lower chamber B. The passages 84 and 85 communicate with the supply port for supplying the liquid for driving the hydraulic motor 75, the passage 86 for communicating the discharge port for discharging the liquid for driving the hydraulic motor 75 with the tank 81, and the respective passages 82. , 83 provided in the middle of each of the passages 84, 85 and check valves 87, 88 provided in the middle of the passages 84, 85 respectively for allowing the flow of liquid from the tank 81 toward the upper chamber A and the lower chamber B. Check valves 89 and 90 that allow the flow of liquid from the chamber B toward the supply port of the hydraulic motor 75 are provided.

  Therefore, when the hydraulic cylinder device 71 expands and contracts, the liquid pushed out from one of the upper chamber A or the lower chamber B in the cylinder 72 is sent to the supply port of the hydraulic motor 75, and the upper chamber A or The liquid deficient in the other of the lower chambers B is supplied from the tank 81, and the output shaft (not shown) of the hydraulic motor 75 is driven to rotate by the expansion and contraction of the hydraulic cylinder device 71.

  The output shaft of the hydraulic motor 75 is connected to the shaft 25 of the generator G via the clutch 76, and the generator is driven by the hydraulic motor 75 that is driven to rotate by the swing motion of the tread plate 3 of the seesaw 1. Electric power can be generated by rotating the shaft 25 of G. The clutch 76 is used to disconnect the hydraulic motor 75 and the generator G from each other when the generator G is not desired to generate power or when the power generator is maintained.

  And in the electric power generating apparatus in other embodiment, when the vehicle passes the seesaw 1, the hydraulic cylinder device 71 is expanded and contracted by the swinging motion of the tread plate 3 by the converters 70 provided at both ends of the tread plate 3. The hydraulic motor 75 can be driven to rotate, and the generator G can be driven by the hydraulic motor 75.

  Therefore, even in the power generation apparatus according to the other embodiment, as in the power generation apparatus according to the one embodiment, the seesaw 1 is swung by the passage of the vehicle once, so that the power generation is performed twice at both ends of the tread 3. As a result, the power generation efficiency is improved with respect to the conventional power generation apparatus.

  In this case as well, the seesaw 1 can be flush with the vehicle travel path R, so that the driver of the vehicle trying to pass through the power generation device does not feel uncomfortable from the outside, and the driver It does not hesitate to pass through the power generation device, and further, it does not cause a situation that the driver intentionally bypasses the power generation device, causing traffic congestion on the vehicle travel path where the power generation device is not installed. Not only will this not be a trigger, but it will also be possible to efficiently generate power by promoting the passage of the power generator, and the practicality of this type of power generator will be improved.

  If the conversion unit 70 is provided with the same amplifying means as in the embodiment, and the hydraulic cylinder device 71 is provided upside down in the portion where the rod 61 was provided in the modification of the embodiment, the above modification Similarly to the example, it is possible to amplify the swing distance of the tread plate 3 and increase the stroke when the hydraulic cylinder device 71 contracts. In this case, a guide hole similar to that provided in the tread plate 3 may be provided in the link 63, and the shaft 74a received by the piston rod 74 may be inserted.

  Although the cylinder 72 is fixed with respect to the vehicle travel path R, it is not preferable because the mounting of the hydraulic circuit 80 is complicated, but conversely, the piston 72 is fixed and the cylinder 72 itself is fixed to the step board 3. It is also possible to reciprocate with respect to the piston rod 74 in cooperation with the sway.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

It is the schematic of the electric power generating apparatus in one embodiment. It is a circuit diagram of a power storage device. It is the schematic in the modification of one embodiment. It is the schematic of the electric power generating apparatus in other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seesaw 2 Shaft 3 Tread board 3a Guide hole 10, 60, 70 Conversion part 11, 61 Rod 12 Claw wheel 13 Main body 14 Claw 18 Energizing means 20 Recessed part 21 Spring 62 Amplifying means lever apparatus 63 Link 64 Supporting point 71 Hydraulic cylinder apparatus 75 Hydraulic motor 80 Hydraulic circuit C Power storage device G Generator R Vehicle travel path

Claims (5)

A seesaw comprising an axis perpendicular to the traveling direction installed on the vehicle traveling path and a tread plate that is pivotally supported by the shaft so as to be able to swing substantially in the center, and forms a part of the vehicle traveling path, and the swing of the tread A power generation apparatus comprising: a conversion unit that converts motion into rotational motion; and a generator to which the rotational motion converted by the conversion unit is transmitted. The conversion unit is a rod that reciprocates in cooperation with the end of the tread, and engages with the tip of the rod for movement in one direction of the rod and engages with the tip of the rod for movement in the other row. A claw wheel provided with a plurality of claws on the outer periphery and an urging means for urging the rod in the direction of the claw wheel are provided, and the vertical movement of the end portion of the tread is converted into a rotational movement of the claw wheel. The power generation device according to claim 1. The power generation device according to claim 2, wherein the conversion unit includes an amplifying unit that amplifies the swing distance of the tread plate to increase the reciprocating distance of the rod. The conversion unit includes a hydraulic cylinder device that expands and contracts by a swinging movement of the tread board, and a hydraulic circuit that rotationally drives the hydraulic motor by expansion and contraction of the hydraulic cylinder device, and drives the generator by the hydraulic motor. The power generator according to claim 1. 5. The power generator according to claim 4, wherein the conversion unit includes an amplifying unit that amplifies a swing distance of the tread plate to increase a stroke when the hydraulic cylinder is expanded and contracted.

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