JP2008050850A - Generator for water faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a generator for a water faucet capable of stably holding a position in the axial direction of a preliminarily turning stationary blade provided on the upstream side of a moving blade which gives a swirl stream to the moving blade. <P>SOLUTION: This generator for the water faucet is provided with a cylindrical body allowing feed water to flow inside, the preliminarily turning stationary blade provided in the cylindrical body which gives a swirl stream to the downstream side, the moving blade provided on the downstream side of the preliminarily turning stationary blade and rotatable around a central axis of the cylindrical body by receiving the swirl stream, a magnet rotatable integrally with the moving blade, and a coil opposing the magnet. A coming-off prevention part for regulating the travel of the preliminarily turning stationary blade to the downstream side is provided on the internal wall of the cylindrical body, and the preliminarily turning stationary blade is inserted into the cylindrical body from a further upstream side of the coming-off prevention part and hooked in the coming-off prevention part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a faucet generator that generates electric power using a flow of water supply.

  2. Description of the Related Art Conventionally, there is known an automatic faucet device in which a sensor is detected by inserting a hand under a faucet and water is automatically discharged from the faucet. There is also known a device that arranges a small generator in the flow path of such an automatic water faucet device, stores electric power obtained by the generator, and supplements electric power of a circuit such as the above-described sensor. Yes.

For example, Patent Document 1 discloses a generator that includes a water wheel and a nozzle member that is provided on the upstream side of the water wheel and supplies water from a water discharge port as a jet flow toward the blades of the water wheel to rotate the water wheel. Has been. In this patent document 1, the nozzle member which forms the jet flow which gives a rotational force to a water wheel is fittingly fixed to the inner peripheral surface of the upper end part of the housing in the outer peripheral surface. In such a configuration, when the nozzle member receives a force from the water flow for a long time, the nozzle member disengages from the inner peripheral surface of the housing and moves to the downstream side, interfering with the water wheel and preventing the water wheel from rotating. There is a possibility.
JP 2005-113437 A

  The present invention provides a faucet generator that can be stably held in the axial position of a pre-swirl stationary blade that is provided upstream of a rotor blade and that imparts a swirling flow to the rotor blade.

  According to one aspect of the present invention, a cylindrical body through which water is supplied, a pre-rotating stationary blade provided inside the cylindrical body for providing a swirling flow downstream, and a downstream side of the pre-rotating stationary blade A rotating blade that receives the swirling flow and can rotate about a central axis of the cylindrical body, a magnet that can rotate integrally with the moving blade, and a coil that faces the magnet. An inner wall is provided with a retaining portion for restricting the downstream movement of the pre-turning stationary blade, and the pre-turning stationary blade is inserted into the cylindrical body from the upstream side with respect to the retaining portion. A faucet generator characterized by being hooked on a stopper is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the generator for faucets which can maintain stably the position of the axial direction of the pre-rotation stationary blade which is provided in the upstream of a moving blade and gives a turning flow to a moving blade is provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component.

FIG. 2 is a schematic diagram showing an example of attachment of an automatic faucet device with a generator (hereinafter also simply referred to as an automatic faucet device) according to an embodiment of the present invention.
FIG. 3 is a schematic diagram showing the internal configuration of the automatic faucet device.

  The automatic faucet device 3 according to the present embodiment is attached to the washstand 2 or the like, for example. The automatic water faucet device 3 is connected to an inflow port 5 such as tap water via a pipe 4. The automatic water faucet device 3 includes a cylindrical main body 3a and a water discharge portion 3b provided in an upper portion of the main body 3a so as to extend in a radially outward direction of the main body 3a. A water discharge port 6 is formed at the tip of the water discharge unit 3 b, and a sensor 7 is built in the vicinity of the water discharge port 6.

  Inside the automatic water faucet device 3, a water supply passage 10 is formed that guides the water supplied from the inlet 5 and flowing through the pipe 4 to the water outlet 6. An electromagnetic valve 8 that opens and closes the water supply flow path 10 is built in the main body 3a of the automatic water faucet device 3, and a constant flow valve 55 that restricts the amount of water discharged to the downstream side of the electromagnetic valve 8 is further provided. Built in. In addition, a pressure reducing valve or a pressure regulating valve (not shown) for reducing the pressure when the water supply source pressure is too higher than the working pressure is built in upstream of the electromagnetic valve 8. The constant flow valve 55, the pressure reducing valve, and the pressure regulating valve are appropriately provided as necessary.

  A faucet generator 11 is built in the water discharger 3 b downstream of the constant flow valve 55. Inside the main body 3a, a charger 56 for charging the electric power generated by the faucet generator 11 and a controller 57 for controlling the driving of the sensor 7 and the opening / closing of the electromagnetic valve 8 are provided. Since the faucet generator 11 is disposed downstream of the solenoid valve 8 and the constant flow valve 55, the water supply source pressure (primary pressure) does not directly act on the faucet generator 11. Therefore, the faucet generator 11 does not require so high pressure resistance, and is advantageous in terms of reliability and cost.

  Next, a specific example of the faucet generator 11 will be described.

[First specific example]
FIG. 1 is a schematic cross-sectional view showing the inside of a faucet generator according to a first specific example of the present invention.
FIG. 4 is a perspective view of the pre-turning stationary blade 14, the moving blade 15, and the bearing 17 in the faucet generator.
FIG. 5 is a perspective view of the interposing member 48 provided on the pre-turning stationary blade 14 and the outer peripheral ring 46 thereof.
FIG. 6 is a perspective view in which a part of the outer peripheral ring 46 and the interposition member 48 in FIG. 5 is cut.
FIG. 7 is a schematic perspective view showing an arrangement relationship between the magnet M1 and the yoke pole teeth 33a and 34a in the faucet generator.

  The faucet generator according to this specific example mainly includes a cylindrical body 13, a pre-turning stationary blade 14, a moving blade 15, a magnet M1, and a coil 9, which are in a case 12 shown in FIG. Contained.

  The cylindrical body 13 has a stepped shape composed of a small diameter portion 13a and a large diameter portion 13b, and is incorporated in the water discharge portion 3b shown in FIGS. The central axis direction of the body 13 is installed so as to be substantially parallel to the flowing water direction. The cylindrical body 13 is disposed with the small diameter portion 13a facing the upstream side and the large diameter portion 13b facing the downstream side.

  Inside the cylindrical body 13, a pre-turning stationary blade 14, a moving blade 15, and a bearing 17 are provided in order from the upstream side. The pre-turning stationary blade 14 is provided inside the small diameter portion 13a, and the moving blade 15 and the bearing 17 are provided inside the large diameter portion 13b.

  The pre-turning stationary blade 14 has a shape in which a conical body is integrally provided on one end surface (a surface located on the upstream side) of the cylindrical body. On the peripheral surface of the pre-turning stationary blade 14, a plurality of protruding stationary blade blade portions 18 projecting in the radially outward direction are provided. As shown in FIG. 4, the stationary blade vane portion 18 is inclined from the upstream side toward the downstream side while twisting rightward with respect to the axial center of the pre-turning stationary blade 14. A space between the adjacent stationary blade blade portions 18 as viewed in the circumferential direction functions as a stationary blade channel 71.

  An outer peripheral ring 46 is integrally provided so as to surround the peripheral surface of the upper half of the cylindrical body portion in the pre-turning stationary blade 14. The inner peripheral surface of the outer peripheral ring 46 is fixed to the side end surface on the radially outer side of the stationary blade blade portion 18 and does not block the stationary blade channel 71.

  A retaining portion 45 is provided on the inner wall of the small diameter portion 13 a of the cylindrical body 13. The retaining portion 45 is provided as an annular step portion extending inward in the diameter when the inside of the small diameter portion 13a is viewed from the upstream side and formed along the inner circumferential direction.

  The pre-turning stationary blade 14 is inserted into the cylindrical body 13 from the opening end of the small-diameter portion 13 a upstream of the retaining portion 45, and is hooked on the retaining portion 45. That is, the pre-turning stationary blade 14 is held in the cylinder 13 with the lower end surface of the outer peripheral ring 46 being brought into contact with the retaining portion 45 so that the outer peripheral ring 46 is caught by the retaining portion 45. The movement of the pre-turning stationary blade 14 is restricted to the downstream side.

  An interposed member 48 is fitted on the upstream side of the pre-turning stationary blade 14 inside the cylindrical small-diameter portion 13a. The interposed member 48 has a cylindrical shape, and a lower end surface thereof is in contact with an upper end surface of the outer peripheral ring 46.

  A cylindrical fixing member 47 is fitted on the outer peripheral side of the upstream end portion of the cylindrical small-diameter portion 13a. The inside of the fixing member 47 communicates with the inside of the interposed member 48. The fixing member 47 is provided with a protruding portion 47a that protrudes radially inwardly in the shape of an eave and is formed in an annular shape along the inner circumferential direction. The upper end surface of the interposed member 48 protruding slightly upstream from 13a is in contact. The fixing member 47 presses the interposed member 48 to the downstream side by the protruding portion 47a. That is, the interposed member 48 includes the protruding portion 47a of the fixing member 47 and the outer peripheral ring 46 of the pre-turning stationary blade 14. Thus, the outer peripheral ring 46 is sandwiched between the fixing member 47 and the retaining portion 45 in the axial direction via the interposition member 48. Thereby, the pre-turning stationary blade 14 is fixed to the cylindrical body 13.

  A moving blade 15 is provided on the downstream side of the pre-turning stator blade 14 with a gap from the pre-turning stator blade 14. The moving blade 15 has a columnar shape, and a plurality of protruding moving blade blade portions 19 protruding in the radially outward direction are provided on the circumferential surface thereof. As shown in FIG. 4, the moving blade blade portion 19 is inclined from the upstream side to the downstream side while being twisted in the left direction with respect to the axial center, contrary to the stationary blade blade portion 18. A space between adjacent blade blades 19 as viewed in the circumferential direction functions as a blade passage 72.

  The moving blade 15 is supported by the bearing 17 via a central shaft 24 substantially parallel to the water supply flow path, and the moving blade 15 is rotatable around the central shaft 24. The bearing 17 is provided on the downstream side of the moving blade 15 with a gap from the moving blade 15.

  The opening at the downstream end of the cylindrical large diameter portion 13 b is liquid-tightly closed by the sealing member 51 through the O-ring 52. A stepped hole is formed inside the sealing member 51, the stepped portion 51a is formed in an annular shape, and the bearing 17 is supported on the stepped portion 51a. A cylindrical outflow port 53 is integrally provided at the center of the downstream end face of the sealing member 51.

  The bearing 17 includes a ring member 21 supported on a step portion 51a inside the sealing member 51 and a shaft support portion 22 provided at the center of the ring member 21 by a connecting member 23 provided radially. Combined.

  A center shaft 24 fixed to the shaft center of the rotor blade 15 is rotatably supported on the shaft support portion 22 of the bearing 17. The tip of the central shaft 24 protrudes from the rotor blade 15 and is fitted into the pre-turning stationary blade 14. The tip end portion of the central shaft 24 and the pre-turning stationary blade 14 are not fixed to each other, and the central shaft 24 is rotatable with respect to the pre-turning stationary blade 14 fixed to the cylindrical body 13. . Alternatively, both end portions of the center shaft 24 may be fixed to the shaft support portion 22 and the pre-turning stationary blade 14, and the moving blade 15 may be fitted to the center shaft 24 so as to be rotatable.

  A cylindrical magnet M <b> 1 fixed to the moving blade blade 19 is provided outside the moving blade 15 inside the cylindrical large diameter portion 13 b so as to surround the moving blade flow path 72. In FIG. 4, the inner peripheral surface of the magnet M <b> 1 represented by a two-dot chain line is fixed to a radially outer side end surface of the rotor blade blade portion 19.

  A coil 9 is provided on the outer peripheral side of the cylindrical small-diameter portion 13a so as to face the upstream end surface of the magnet M1. The coil 9 includes a cylindrical yoke 31 and a coil wiring portion 9 a disposed inside the yoke 31. As shown in FIG. 7, the yoke 31 is formed by combining three yokes 32, 33, and 34 both made of a magnetic material.

  The yoke 33 has a peripheral surface portion 33b facing the peripheral surface portion of the coil wiring portion accommodated therein, and a plurality of pole teeth 33a facing the magnet M1. The plurality of pole teeth 33a protrude radially inward and are provided integrally with the peripheral surface portion 33b, and are provided at equal intervals along the circumferential direction.

  The yoke 34 has a plurality of pole teeth 34 a that protrude in the radially outward direction and are disposed between the pole teeth 33 a of the yoke 33. The pole teeth 33a and 34a are opposed to the yoke 32 with the coil wiring portion housed inside interposed therebetween.

  N poles and S poles are alternately magnetized along the circumferential direction on the end face of the magnet M1 in the axial direction.

  The coil 9 may be disposed so as to face the downstream end surface of the magnet M1, or a pair of coils 9 may be disposed so as to face both the upstream and downstream end surfaces of the magnet M1. Good.

  Next, the operation of the faucet generator and the automatic faucet device according to this embodiment will be described.

  When the user holds his hand under the spout 6, the sensor 7 detects this and the control unit 57 opens the electromagnetic valve 8. Thereby, running water is supplied to the inside of the faucet generator, and the water flowing inside the faucet generator is discharged from the water outlet 6. When the user moves his hand away from the bottom of the spout 6, the solenoid valve 8 is closed and water automatically stops.

  In the faucet generator, first, flowing water flows into the fixing member 47, further flows through the interposition member 48, and flows into the pre-turning stationary blade 14. Then, the flowing water flows on the conical surface of the pre-swirl stationary blade 14 and is diffused in the radially outward direction. In this specific example, the running water becomes a swirl flow that swirls in the right direction with respect to the axial center. It flows through the stationary blade channel 71 between the blade portions 18.

  The swirl flow that has flowed through the stationary blade flow path 71 flows into the moving blade flow path 72 and collides with the upper inclined surface of the moving blade blade portion 19. In this specific example, the swirl flow that flows into the blade flow path 72 is a flow swirled in the right direction with respect to the axial center, so that a rightward force acts on the blade blade 19 and the blade 15 Rotate clockwise. The flowing water that has flowed through the blade flow path 72 passes through the inside of the bearing 17, and further passes through the inside of the sealing member 51 and the outflow port 53 to reach the water discharge port 6.

  When the rotor blade 15 rotates, the magnet M1 fixed thereto also rotates, and the polarities of the pole teeth 33a and 34a (FIG. 7) of the yokes 33 and 34 facing the magnet M1 change. That is, when the yoke 33 is the N pole, the yoke 34 is the S pole, and when the yoke 33 is the S pole, the yoke 34 is the N pole, so that the chain to the coil wiring portion disposed inside the yokes 33 and 34 is repeated. The magnetic flux changes, and an electromotive force is generated in the coil wiring portion to generate power. After the generated electric power is charged into the charger 56, it is used for driving the electromagnetic valve 8, the sensor 7, and the control unit 57, for example.

  In this specific example, the pre-swirl stationary blade 14 protrudes substantially perpendicular to the direction in which the force from the water flow is received and the retaining portion 45 is provided on the inner wall of the cylindrical body 13. The outer peripheral ring 46 of the swirling stationary blade 14 is pressed so as to be caught by the retaining portion 45, and the movement of the pre-turning stationary blade 14 to the downstream side is restricted. Therefore, the gap between the pre-turning stationary blade 14 and the moving blade 15 is not crushed, the interference between the moving blade 15 and the pre-turning stationary blade 14 can be prevented, and the rotating operation of the moving blade 15 can be stabilized. It can be carried out. Further, the pre-turning stationary blade 14 can be easily positioned by bringing the outer peripheral ring 46 into contact with the retaining portion 45.

  Further, when the fixing member 47 presses the outer peripheral ring 46 against the retaining portion 45 via the interposition member 48, the pre-turning stationary blade 14 is fixed to the cylindrical body 13. No. 14 is restricted from rotating about its axis. Accordingly, there is no loss of water energy consumed for rotating the pre-swirl stationary blade 14, and the energy of the water flow can be used effectively for the rotation of the moving blade 15, and the power generation efficiency is not lowered.

  A cylindrical interposition member 48 is fitted on the inner peripheral surface of the cylindrical body 13 on the upstream side of the pre-turning stationary blade 14, and the lower end surface of the interposition member 48 is fixed to the upper end surface of the outer peripheral ring 46 by the fixing member 47. Due to the pressure contact, the flow of the flowing water flowing from the upstream side of the pre-rotating stationary blade 14 is prevented from flowing on the outer peripheral surface side of the outer peripheral ring 46, and the stationary blade flow path formed inside the outer peripheral ring 46. The flowing water can be surely passed through 71.

  As shown in FIG. 8, the pre-turning stationary blade 14 and the cylindrical interposition member 44 are integrally formed, and the interposition member 44 is sandwiched between the fixing member 47 and the retaining portion 45 in the axial direction. The pre-turning stationary blade 14 may be fixed to the cylindrical body 13 by pressing the lower end surface of the interposed member 44 against the retaining portion 45 by the fixing member 47. However, since the pre-swirl stationary blade 14 has a helical stationary blade portion 18 and has a complicated shape, it is desirable to produce it by resin molding in terms of cost and accuracy. When the outer ring 46 of the pre-turning stationary blade 14 is pressed against the retaining portion 45 via the member 48, the interposed member 48 can be manufactured separately from the pre-turning stationary blade 14. There is an advantage that the fixed structure of the pre-turning stationary blade 14 can be stably maintained by being made of a metal having higher strength than the resin.

  Further, in this specific example, since the coil 9 is disposed opposite to the magnet M1 in the axial direction, the radial dimension is reduced as compared with the case where the coil 9 is disposed opposite to the outer diameter of the magnet M1. For example, even if it is incorporated in the cylindrical water discharge portion 3b shown in FIG. 2, the fine and clean design of the water discharge portion 3b is not impaired.

[Second specific example]
FIG. 9 is a schematic diagram showing a cross-sectional structure of a main part in a faucet generator according to a second specific example of the present invention.

  In this specific example, as in the first specific example, the lower end surface of the outer peripheral ring 46 is brought into contact with the retaining portion 45 to restrict the downstream movement of the pre-turning stationary blade 14 and the outer periphery of the outer peripheral ring 46 is controlled. The surface 46a and a part of the inner peripheral surface of the cylindrical body 13 (a part of the inner peripheral surface on the upper stage side of the retaining portion 45) are screwed together, thereby restricting the rotation of the pre-turning stationary blade 14 around the axis. is doing. From the swirl flow, the fastening direction (screwing direction) between the outer peripheral surface 46 a of the outer ring 46 and the inner peripheral surface of the cylindrical body 13 is the same as the swirl direction of the swirl flow flowing through the stationary blade channel 71. The rotation of the pre-turning stationary blade 14 due to loosening of the screwing between the outer ring 46 and the inner peripheral surface of the cylinder 13 is prevented by the force received.

[Third example]
FIG. 10 is a schematic diagram showing a cross section of the main part of the faucet generator according to the third specific example of the present invention.

  In this specific example, a plurality of convex portions 58 protruding radially outward are provided intermittently along the circumferential direction on the outer peripheral surface of the outer peripheral ring 46, and the convex portions 58 are provided on the inner peripheral surface of the cylindrical body 13. An engaging recess 59 is provided. By the engagement between the convex portion 58 and the concave portion 59, the rotation of the pre-turning stationary blade 14 around the axis is restricted. Further, in the case of this specific example, the radial positioning of the pre-turning stationary blade 14 can be easily performed.

[Fourth specific example]
FIG. 11: is a schematic cross section showing the inside of the faucet generator concerning the 4th specific example of this invention.
FIG. 12 is a schematic perspective view showing the coil 16 in the faucet generator.
FIG. 13 is an exploded perspective view of the coil 16 shown in FIG.
FIG. 14 is a schematic plan view showing an arrangement relationship between the magnet M2 and the yoke pole teeth 25c and 26b in the faucet generator.

  In this specific example, the positional relationship between the magnet M2 and the coil 16 is different from the first specific example described above. That is, a cylindrical magnet M2 fixed to the rotor blade blade 19 so as to surround the rotor blade flow path 72 is provided outside the diameter of the rotor blade 15 inside the cylindrical large diameter portion 13b. A coil 16 is disposed outside the large-diameter portion 13b in the radially outward direction so as to face the outer peripheral surface of the magnet M2.

  The coil 16 includes a pair of yokes 25 and 26 shown in FIGS. 12 and 13 and a coil wiring portion 16a disposed in an annular space formed by combining the yokes 25 and 26.

  The yokes 25 and 26 are both made of a magnetic material. The yoke 25 has an annular portion 25a facing one end surface portion of the coil wiring portion 16a, and a peripheral surface portion 25b facing the peripheral surface portion of the coil wiring portion 16a, and further on the inner peripheral edge portion of the annular portion 25a. Are provided with a plurality of pole teeth 25c protruding in the axial direction. The yoke 26 has an annular portion 26a facing the other end surface portion of the coil wiring portion 16a, and a plurality of pole teeth 26b provided on the inner peripheral edge portion of the annular portion 26a so as to protrude in the axial direction. The pole teeth 25c of the yoke 25 are provided at equal intervals along the circumferential direction, and the pole teeth 26b of the yoke 26 are also provided at equal intervals along the circumferential direction. As shown in FIG. The pole teeth of the other yoke are positioned between the pole teeth of the yoke, and the pole teeth 25c and 26b of both yokes 25 and 26 face the inner peripheral surface of the coil wiring portion 16a.

  As shown in FIG. 14, the magnet M <b> 2 is alternately magnetized with N and S poles in the circumferential direction, and the pole teeth 25 c and 26 b of the yokes 25 and 26 sandwich the cylindrical body 13. It faces the N or S pole of the magnet M2. The coil wiring portion 16a faces the magnet M2 with the pole teeth 25c and 26b and the tube wall of the cylindrical body 13 interposed therebetween.

  Also in this specific example, as in the first specific example, when the moving blade 15 is rotated by the hydrodynamic force of the swirling flow formed by the pre-rotating stationary blade 14, the magnet M2 fixed thereto is also rotated. As shown in FIG. 14, the magnet M2 is magnetized by alternately arranging N poles and S poles along the circumferential direction. Therefore, the pole teeth 25c of the yokes 25 and 26 facing the magnet M2. , 26b changes in polarity. That is, the state in which the yoke 26 is the S pole when the yoke 25 is the N pole and the yoke 26 is the N pole when the yoke 25 is the S pole is repeated, whereby the interlinkage magnetic flux with respect to the coil wiring portion 16a is changed. An electromotive force is generated in 16a to generate power.

  Also in this specific example, since the pre-swirl stationary blade 14 protrudes substantially perpendicular to the direction of receiving the force from the water flow and the retaining portion 45 is provided on the inner wall of the cylindrical body 13, the force from the water flow is received. Even in this case, the outer peripheral ring 46 of the pre-turning stationary blade 14 is pressed so as to be caught by the retaining portion 45, and the movement of the pre-turning stationary blade 14 to the downstream side is restricted. Therefore, the gap between the pre-turning stationary blade 14 and the moving blade 15 is not crushed, the interference between the moving blade 15 and the pre-turning stationary blade 14 can be prevented, and the rotating operation of the moving blade 15 can be stabilized. It can be carried out.

[Fifth Example]
FIG. 15: is a schematic cross section showing the inside of the faucet generator concerning the 5th example of this invention.

  In this specific example, a convex portion 61 is provided on the inner wall of the small diameter portion 13 a of the cylindrical body 13 on the upstream side of the retaining portion 45. For example, four protrusions 61 are provided at equal intervals in the circumferential direction, but may be other than four, and may be further connected in an annular shape.

  The outer peripheral ring 46 of the pre-rotating stationary vane 14 made of resin is fixed to the cylindrical body 13 by being fitted between the convex portion 61 and the retaining portion 45 using the flexibility of the resin. . The pre-turning stationary blade 14 is prevented from rotating by the stress acting on the pre-turning stationary blade 14 and the cylindrical body 13. Further, the outer peripheral ring 46 may be provided with a concave portion corresponding to the convex portion 61 to prevent rotation.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to them, and various modifications can be made based on the technical idea of the present invention.

  The magnet is not limited to be disposed on the outer peripheral side of the coil, but may be disposed on the downstream side of the moving blade 15.

  The faucet fitting of the present invention is suitably used in a living space. Examples of usage purposes include kitchen faucets, living-dining faucets, shower faucets, toilet faucets, toilet faucets, and the like. In addition to automatic faucet fittings using human body detection sensors, for example, one-touch faucet fittings by turning on / off a manual switch, fixed-quantity water faucet fittings that stop water by counting the flow rate, and stop when a set time has elapsed. It can also be applied to water faucet fittings. The generated power may be used for, for example, light-up, generation of electrolyzed functional water such as alkali ion water or silver ion-containing water, flow rate display (metering), temperature display, voice guidance, and the like.

  In the faucet fitting according to the present embodiment, the discharge flow rate is set to, for example, 100 liters per minute or less, desirably 30 liters per minute or less. In particular, it is desirable that the toilet faucet is set to 5 liters per minute or less. In addition, when the discharge flow rate is relatively high, such as a toilet faucet, the water flow flowing from the water supply pipe to the generator 11 can be branched to adjust the flow rate flowing through the generator 11 to 30 liters per minute or less. desirable. This is because if the entire water flow from the water supply pipe is flowed to the generator 11, the rotational speed of the rotor blade 15 increases, and there is a concern that noise and shaft wear may increase, and even if the rotational speed increases. This is because if the rotational speed is not less than the appropriate number of revolutions, energy loss due to eddy currents and coil heat occurs, and the power generation amount does not increase. In addition, the water supply pressure of the water pipe to which the faucet fitting is attached may be a low water pressure of about 0.05 (MPa) in Japan, for example.

It is a schematic cross section showing the inside of the faucet generator concerning the 1st example of the present invention. It is a schematic diagram showing the example of attachment of the automatic faucet device with a generator which concerns on embodiment of this invention. It is a schematic diagram showing the internal structure of the automatic water faucet device. It is a perspective view of the pre-rotation stationary blade, the moving blade, and the bearing in the faucet generator. It is a perspective view of the interposed member provided on a pre-rotation stator blade and its outer periphery ring. It is the perspective view which cut | disconnected a part of outer periphery ring and intervention member in FIG. It is a model perspective view showing the arrangement | positioning relationship of the magnet and yoke pole tooth in the generator for the faucets. It is a perspective view showing the specific example which formed the moving blade and the interposition member integrally. It is a schematic diagram showing the principal part cross-section in the faucet generator which concerns on the 2nd example of this invention. It is a schematic diagram showing the cross section of the principal part in the generator for faucets concerning the 3rd example of the present invention. It is a schematic cross section showing the inside of the faucet generator concerning the 4th example of the present invention. It is a model perspective view showing the coil in the faucet generator which concerns on the same 4th example. It is a disassembled perspective view of the coil represented by FIG. It is a model top view showing the arrangement | positioning relationship between the magnet and yoke pole teeth in the faucet generator which concerns on the 4th example. It is a schematic cross section showing the inside of the faucet generator concerning the 5th example of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 3 ... Automatic faucet device, 7 ... Sensor, 8 ... Solenoid valve, 9, 16 ... Coil, 11 ... Generator for faucet, 14 ... Pre-rotation stationary blade, 15 ... Rotor blade, 17 ... Bearing, 18 ... Stator blade Blade part, 19 ... Rotor blade part, 24 ... Center shaft, 45 ... Retaining part, 46 ... Outer ring, 47 ... Fixed member, 48 ... Interposing member, 55 ... Constant flow valve, 56 ... Charger, 57 ... Control part 71 ... Stator blade flow path 72 ... Rotor blade flow path M1-M2 ... Magnet

Claims (5)

A cylinder through which water flows,
A pre-swirl stationary blade provided inside the cylindrical body to give a swirl flow downstream;
A moving blade provided on the downstream side of the pre-swirl stationary blade and capable of rotating around the central axis of the cylindrical body in response to the swirling flow;
A magnet rotatable integrally with the moving blade;
A coil facing the magnet;
With
A retaining portion for restricting the downstream movement of the pre-turning stationary blade is provided on the inner wall of the tubular body, and the pre-turning stationary blade is inserted into the cylindrical body from the upstream side of the retaining portion. A faucet generator characterized by being hooked on the retaining portion.   A fixing member that sandwiches the pre-turning stationary blade in the axial direction of the cylindrical body with the retaining portion and fixes the pre-turning stationary blade to the cylindrical body is disposed upstream of the pre-turning stationary blade. The faucet generator according to claim 1, wherein the faucet generator is provided.   The faucet generator according to claim 2, wherein an interposition member is interposed between the fixed member and the pre-turning stationary vane.   2. The faucet generator according to claim 1, wherein the pre-turning stationary blade engages with an inner wall of the cylindrical body and is restricted from rotating about an axis. 3.   5. The magnet according to claim 1, wherein the magnet has a cylindrical shape surrounding the rotor blade, and the coil is disposed to face at least one of an upstream end surface and a downstream end surface of the magnet. The faucet generator according to any one of the above.

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