WO2001089066A1 - Dispositif de production d'une petite puissance et dispositif de robinet a eau - Google Patents
Dispositif de production d'une petite puissance et dispositif de robinet a eau Download PDFInfo
- Publication number
- WO2001089066A1 WO2001089066A1 PCT/JP2001/004079 JP0104079W WO0189066A1 WO 2001089066 A1 WO2001089066 A1 WO 2001089066A1 JP 0104079 W JP0104079 W JP 0104079W WO 0189066 A1 WO0189066 A1 WO 0189066A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- flow rate
- stator
- fluid
- small power
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 239000012530 fluid Substances 0.000 claims abstract description 67
- 238000010248 power generation Methods 0.000 claims description 37
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 description 21
- 239000010410 layer Substances 0.000 description 19
- 230000004907 flux Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
Definitions
- the present invention relates to a small power generation device using hydraulic power generated by a flow of water passing through a faucet, and a faucet device provided with the small power generation device.
- a rotating body integrally fixed to the rotating shaft of the water wheel is provided.
- the outer peripheral surface of the rotating body is a magnetized rotor magnet, and the rotor magnet is arranged to face the stator poles with the wall of the non-magnetic member interposed therebetween.
- a single-layer stator coil is provided so as to link with the magnetic flux passing through the stator pole.
- the rerotor magnet rotates relative to the stator pole when the above-described water turbine rotates by receiving the hydraulic power of flowing water. For this reason, the flow of the magnetic flux flowing through the rotor and the stator poles changes. As a result, the flow of the magnetic flux flows through the stator coil.
- a current flows in a direction that prevents changes, and this current is rectified and stored in a storage battery.
- the magnetic flux flows between the rotor and the stator poles of the power generation device.
- This magnetic flux serves as resistance when the water turbine is rotated by the hydraulic power of flowing water. That is, the magnetic flux generated between the mouth and the stator pole becomes the detent torque, and the operation of the turbine is braked when the turbine starts and rotates. Therefore, the turbine does not rotate unless it receives a certain flow rate and pressure. Therefore, if the flow rate is low or the water pressure received by the turbine is low, the turbine will not rotate and will not generate power. If the magnetic force of the rotor magnet is low, the detent torque is reduced and the water turbine itself rotates, but the induced voltage generated when the rotor rotates is also reduced, and the power generation amount is greatly reduced.
- the small power generator of the present invention includes a water turbine that is provided in a fluid passage and rotates with the passage of a predetermined amount of fluid, and a rotating body that is connected to the water wheel and rotates together with the water wheel.
- a stepper motor having a plurality of layers of stator portions, a rotor portion opposed to the stator portion, and electric power is generated by rotating the rotor portion relative to the stator portion with the passage of fluid.
- each layer acts so as to cancel the detent torque between the stator portion and the rotor, so that the detent torque can be reduced. As a result, it becomes possible to rotate the water turbine at a low flow rate and a low water pressure.
- a plurality of layers are set so that detent torque generated between the stator section and the rotor section cancels each other. For example, skew each layer (deliberately shift the poles of each layer by rotating in the circumferential direction), or set non-magnetic members between each layer to actively reduce the detent torque. As a result, the above-described operation becomes more effective.
- a small power generation device includes a water turbine that is disposed in a fluid passage and rotates with the passage of a predetermined amount of fluid, and a rotating body that is connected to the water wheel and rotates together with the water turbine includes a plurality of coil units.
- the water turbine can be rotated at a low flow rate and a low water pressure.
- the relationship between the number of poles magnetized in the rotor and the number of coils in the stator is reduced to 2-3, 4-3 or 4-6. Is set. Therefore, the detent torque between the stator and the rotor can be further reduced.
- an injection member having an injection hole for forming a part of a fluid passage and narrowing a flow rate to be injected to a blade portion of a water turbine. I have.
- the water pressure can be increased to some extent by the injection hole, and the water turbine can be rotated more smoothly to generate power.
- the diameter of the injection hole should be increased, and the water pressure should be increased accordingly. It is also possible to generate power without. With this setting, the risk of damage to the injection member due to high water pressure is reduced.
- the faucet device of the present invention has at least two modes, a water saving mode in which the flow rate flowing out to the fluid passage is smaller than usual by controlling the degree of opening of the valve, and a normal mode in which the flow rate is normal.
- the small power generator according to claim 6 or 9 is disposed in the fluid passage. As described above, the small power generator according to claim 6 or claim 9 disposed in the fluid passage has a reduced detent torque, so that power can be generated at a low flow rate and a low water pressure.
- the water wheel If the water pressure of the fluid supplied to the water is set lower, the risk of damage to components due to high water pressure in the normal mode can be reduced, and sufficient power can be generated even in the water saving mode Becomes
- the flow rate in the water saving mode is set to 2.0 liters to 3.0 liters. As a result, it is possible to save water sufficiently and at the same time, to make it possible to generate electricity with this low water flow.
- FIG. 1 is a longitudinal sectional view of a two-layer stepping motor type compact power generator according to a first embodiment of the present invention.
- FIG. 2 is a side view of the small power generator of FIG. 1 as viewed in the direction of arrow II in FIG.
- FIG. 3 is a bottom view of FIG. 2 as viewed from the direction of arrow III.
- FIG. 4 is a schematic diagram showing the relationship between a member (nozzle ring) for spraying the water turbine with the fluid passage being narrowed to increase the water pressure and the water turbine.
- FIG. 5 is a longitudinal sectional view of a brushless motor type small power generator according to a second embodiment of the present invention.
- FIG. 6 is a side view of the small power generator of FIG. 5 as viewed from the direction of arrow VI in FIG.
- FIG. 7 (a) shows a front sectional view of a faucet device using the small power generator of the present invention
- FIG. 7 (b) shows a side sectional view thereof.
- FIG. 1 is viewed in the direction of arrow II in FIG.
- FIG. 3 is a bottom view of FIG. 2 as viewed in the direction of arrow III.
- FIG. 4 is a schematic diagram showing a relationship between a member (nozzle ring) for spraying the water turbine with the fluid passage being narrowed to increase the water pressure and the water turbine.
- the small power generator using the two-layer stepping motor system according to the first embodiment includes a casing 1, a nozzle ring 2 provided in the casing 1, and a nozzle ring 2 provided in the casing 1.
- the casing 1 includes a main body 11 and an inflow channel 12 and an outflow channel 13 protruding outside the main body 11.
- the main body 11 includes a power generation unit mounting unit 11a for mounting a power generation unit including the rotating body 4 and the stator unit 6 described above.
- the power generation unit mounting portion 1 la is composed of an open end face portion formed on the right side of the main body portion 11 in FIG.
- the lid member 9 is in contact with the portion 11 d (see an enlarged view in FIG. 1), the lid member 9 is covered so as to be sandwiched between the above-described power generation portion mounting portion 11 a.
- the cup-shaped member 5 is pressed against the power-generating-unit mounting portion 11a while crushing the O-ring 8 in the groove 11b, and the lid member 9 is further covered thereon.
- the cup-shaped member 5 is positioned on the inner peripheral portion of the stator 6 by bringing the outer peripheral end of the flange 52 of the cup-shaped member 5 into contact with the inner peripheral portion of the convex lid. You. Then, as shown in FIG. 2, the four screws 10 are inserted into the screw holes formed at the four corners of the lid member 9 and screwed, so that the lid member 9 is attached to the main body 11 of the casing 1. Fixed. As a result, the power generation unit mounting portion 11 a serving as the open end surface of the casing 1 is closed by the cup-shaped member 5.
- the cup-shaped member 5 is formed of a non-magnetic stainless steel member, and has a flange 52, a cylindrical portion 51, and a bottom 53 formed by drawing.
- a bearing 15 that receives one end of a shaft 7 that supports the water wheel 3 and the rotating body 4 so as to freely rotate is fitted into the bottom 53.
- the cup-shaped member 5 serves to isolate the stator portion 6 of the stepping motor from the fluid passing through the casing 1 and to prevent the fluid from flowing out of the casing 1.
- the inflow channel 12, the outflow channel 13 and the connecting channel 14 connecting these components formed in the casing 1 are one of the fluid passages of a faucet device (see FIG. 7) composed of a faucet, a valve, and the like.
- connection channel 14 The fluid that has entered the inflow channel 12 from the fluid source passes through the connection channel 14 and is discharged from the outflow channel 13.
- the fluid imparts a turning force to the water wheel 3 during this passage.
- a detailed description of this section will be described later.
- the connection path 14 the other end of the shaft 7 that supports rotation of the water wheel 3 and the rotating body 4 described later is rotatably arranged.
- This axis 7 The end is rotatably fitted into a bearing hole 14a formed in the connecting path 14 of the casing 1, the other end passes through the open end face described above, and the tip is disposed in the cup-shaped member 5. It is rotatably fitted in a bearing 15.
- the shaft 7 is cooperatively held by the casing 1 and the cup-shaped member 5.
- the connecting passage 14 of the casing 1 is formed as a part of the fluid passage of the faucet device described above, and the fluid flowing therethrough is throttled to be discharged to the blade portion 31 of the turbine 3 (see FIG. 4).
- the nozzle ring 2 as the injection member is press-fitted.
- the nozzle ring 2 has a substantially cylindrical ring portion 21 and a flange portion 22 formed by bending one open end of the ring portion 21 in the outer circumferential direction. Then, as shown in FIG. 4, the ring portion 21 narrows the inflow passage of the fluid that has entered the inflow passage 12 and serves as an injection hole for injecting into the blade portion 31 of the water turbine 3 disposed inside.
- Two nozzles 23 are provided at approximately 180 degrees symmetrical positions.
- the water wheel 3 provided inside the nozzle ring 2 which is a part of the fluid passage rotates with a predetermined flow rate of fluid.
- the water turbine 3 includes a cylindrical ring portion 32, and a blade portion 31 having an outer peripheral end portion connected to one end surface of the ring portion 32 and a center portion thereof fixed through the shaft 7 described above. .
- the blade portion 31 is curved in an arc shape so as to easily receive the pressure of the fluid from the nozzle 23. For this reason, the water turbine 3 enters the inflow passage 12, and the fluid whose pressure has been increased by the two nozzles 23 and whose pressure has been increased vigorously flows to the blade portion 31, so that the hydraulic power rotates around the shaft 7 as a rotation center. Has become.
- the fluid that has hit the blade portion 31 moves from the connection path 14 to the outflow path 13 through the open portion of the water wheel 3 and the inner peripheral portion of the ring portion 32.
- the rotating body 4 is formed integrally with the water turbine 3 via the connecting shaft 35, and is arranged coaxially with the water turbine 3. That is, the above-described water turbine 3, the connecting shaft 35, and the rotating body 4 are arranged so as to be connected in the direction in which the shaft 7 extends. Therefore, when the water wheel 3 is rotated by hydraulic power, the rotating body 4 rotates integrally with the water wheel 3 around the shaft 7 as a rotation center.
- the connecting shaft 35 and the rotating body 4 are formed with four communication holes 4a communicating with each other in the direction in which the shaft 7 extends, at regular intervals in the circumferential direction. These communication holes 4a are provided for smoothing the rotation of the shaft 7 with respect to the bearing 15 by flowing fluid also to the right side of the rotating body 4 in FIG.
- the rotating body 4 that is connected to the water wheel 3 and rotates together with the water wheel 3 is a rotor part of a stepping motor, is formed of a rotor magnet Mg, and has eight poles magnetized on its outer peripheral surface.
- the outer peripheral surface of the stepping motor 5 is arranged to pass through the cylindrical portion 51 of the cup-shaped member 5 and face the spreader portion 6 of the stepping motor.
- the stator section 6 is composed of two layers 6a and 6b which are arranged so as to overlap in the axial direction.
- Each of the layers 6a and 6b includes an outer yoke (disposed outside in an overlapped state) 61, outer pole teeth 61a formed integrally with the outer yoke 61, and an inner yoke (in an overlapping state).
- 62 an inner pole tooth 62a formed integrally with the inner yoke 62, and a coil 63 wound around a coil pobin.
- the winding start portion and the winding end portion of the coil 63 are connected to terminals 64, respectively.
- the stator portion 6 configured as described above is fitted into an outer portion of the cylindrical portion 51 of the cup-shaped member 5. Therefore, a magnetic flux flows between the pole teeth 61 a and 62 a of the stator section 6 and the magnetized section of the rotating body 4.
- a change occurs in the flow of the magnetic flux, and an induced voltage is generated in the coil 63 in a direction to prevent the change in the flow.
- This induced voltage is taken out from the terminal 64.
- the induced voltage extracted in such a manner is converted into direct current by a circuit, rectified through a predetermined circuit (not shown), and charged into the battery. A specific flow rate for rotating the water turbine 3 will be described below.
- the rotational force received by the water turbine 3 is set by the flow rate and the water pressure of the fluid.
- the fluid that has entered the above-described inflow passage 12 is squeezed to some extent by the nozzle 23 and is vigorously applied to the blade portion 31 of the water turbine 3, whereby the water turbine 3 receives rotational force from the fluid.
- the water turbine 3 rotates if the flow rate itself is sufficient.
- the fluid passage is narrowed to increase the water pressure. If the water pressure is excessively increased, the blade portion 31 of the water turbine 3, the nozzle ring 2, and other fluid flow paths may be damaged. Occurs. Conversely, if the water pressure is too low, the flow rate will be insufficient and satisfactory power generation will not be possible. Therefore, it is necessary to appropriately set the water pressure depending on the material and thickness of the water turbine 3 and the nozzle ring 2. Further, in addition to the shape of the blade portion 31 of the turbine 3 and the total weight of the turbine 3 (including the weight of the rotating body 4), the detent torque generated between the rotating body 4 and the stator section 6 increases.
- the main part of the present invention is to reduce the detent torque part.
- the stator portion 6 has a two-layer structure and is skewed (shifting each layer in the circumferential direction), for example, by shifting the above-described pole tooth position in the circumferential direction, and The detent torque generated between the magnetized portion of FIG. 4 and the magnetized portion is canceled each other. As a result, detent torque is reduced. For this reason, the detent torque force between the rotating body 4 and the stator portion 6 when rotating the water wheel 3 does not provide so strong braking, and the water wheel 3 can rotate smoothly with the rotating body 4 with a small amount of flow and water pressure.
- the stator section 6 of the stepping motor has a two-layer structure and the shape and thickness of the blade section 31 are set to predetermined dimensions.
- the minimum starting current amount at which the generator starts rotating is 1.2 to
- the amount of power generation is small, and considering the voltage required to store it in the power storage unit (not shown), At least 5V is required.
- power generation is possible at a flow rate slightly less than 2.0 liters. A power that is at least 2.0 liters / minute is required to actually generate power.
- the flow rate of 2.0 liters Z is the minimum flow rate used for hand washing.
- the flow rate of 2.0 to 3.0 liters Z is set as the water saving mode, and the flow rate exceeding 3.0 liters is set as the normal mode.
- FIG. 5 shows a vertical cross-sectional view of a small power generator according to the second embodiment of the present invention.
- the brushless motor type small power generation device of the second embodiment has almost the same configuration as that of the first embodiment, and includes a casing 1 and a casing 1.
- the nozzle ring 2 provided, a water wheel 3 rotatably arranged on the inner peripheral side of the nozzle ring 2, a rotating body 4 that rotates integrally with the water wheel 3, and an outer peripheral side of the rotating body 4. It includes a cup-shaped member 105 made of stainless steel, and a stator portion 106 of a brushless motor disposed outside the cup-shaped member 105.
- the main body section 111 of the casing 1 includes a power generation section mounting section 11 la for mounting a power generation section composed of the rotating body 4 and the stator section 106 described above.
- the power generation part mounting part 111a is composed of a concave part 111c having a hole in the center part formed on the right side of FIG. 5 of the main body part 111 and its outer peripheral part, and the outer peripheral part has a circumferential part.
- a groove 1 1 1 b is formed.
- the O-ring 8 is embedded in the groove 1 1 1b. Further, the O-ring 8 is pressed against a flange 1 52 formed on the outermost peripheral portion of the cup-shaped member 105 so as to be sealed in the groove 111 b.
- I sandwich it with a The dish-shaped member 90 is covered. That is, the cup-shaped member 105 is pressed against the O-ring 8 while pressing the O-ring 8 within the groove 11 lb, and the dish-shaped member 90 is put on the O-ring 8 from above. Become. Then, as shown in FIG. 6, four screws 10 are inserted into the screw holes formed at the four corners of the dish-shaped member 90, and the screws are tightened. It is fixed to the main body 1 1 1.
- the power generation unit mounting portion 111 a serving as the open end surface of the casing 1 is closed by the cup-shaped member 105.
- the cup-shaped member 105 is formed of a non-magnetic stainless steel member, and is formed of a flange portion 152 by drawing, an outer cylindrical portion 1 55 continuous with the flange portion 152, and an outer cylindrical portion 155.
- An inner tubular portion 151 arranged inside, a connecting surface portion 156 connecting the two tubular portions 151, 155, and a bottom portion 153 are formed. Then, the cup-shaped member 105 configured as described above is fitted into the recessed portion 111c of the power generation unit mounting portion 111a, and the casing 1 and the dish-shaped member 90 are connected as described above.
- a bearing 15 that receives one end of a shaft 7 that supports the water wheel 3 and the rotating body 4 in a rotating manner is fitted into the bottom portion 153.
- This cup-shaped member 105 serves to isolate the stator portion 106 of the brushless motor from the fluid passing through the casing 1 and to prevent the fluid from flowing out of the casing 1.
- the connecting path 14 of the casing 1 serves as an injection member for forming a part of the fluid path of the faucet device described above, and also as an injection member for restricting the flow rate of the passing fluid and injecting it to the blade portion 31 of the water turbine 3.
- Nozzle ring 2 is fitted by press fitting. The configuration of the nozzle ring 2 is similar to that of the first embodiment.
- the rotating body 4 which is connected to the water wheel 3 and rotates together with the water wheel 3 is a rotor part of a brushless motor, is composed of a rotor magnet Mg, and has a two-pole magnetized outer peripheral surface.
- the outer peripheral surface of the brushless motor is opposed to the stator portion 106 of the brushless motor through the inner cylindrical portion 151 of the cup-shaped member 105. Therefore, when the rotating body 4 rotates together with the water wheel 3, the rotating body 4 rotates relatively to the stator portion 106. As shown in FIG.
- the stator section 106 is composed of three coil sections 106a, 106b, and 106c that are equally arranged in the circumferential direction.
- Each of the kosole sections 106a, 106b, and 106c includes a stator core 161 and a coil 163 wound around the stator core 161.
- the winding start portion and the winding end portion of the coil 163 are connected to the terminal 164, respectively.
- the stator portion 106 configured as described above is fitted into a portion between the inner tubular portion 151 and the outer tubular portion 155 of the cup-shaped member 105.
- a magnetic flux flows between the inner facing surface 161 a of each yoke member 161 serving as a pole of the stator portion 106 and the magnetized portion of the rotating body 4.
- a change occurs in the flow of the magnetic flux, and an induced voltage is generated in the coil 163 in a direction to prevent the change in the flow.
- This induced voltage is extracted from terminal 164.
- the induced voltage extracted in such a manner is converted into direct current by a circuit. That is, the AC voltage induced by the power generation unit whose output coil is three-phase Y-connected is rectified and converted to DC through a three-phase bridge circuit (not shown) consisting of six diodes and one smoothing capacitor.
- the battery is charged.
- the stator section 106 is composed of three coil sections 106a, 106b, and 106c as described above, and has three poles.
- the rotating body 4 disposed opposite to the stator section 106 is two-pole magnetized as described above. That is, in the present embodiment, a brushless motor system is used, and the relationship between the number of poles magnetized on the rotating body (rotor section) 4 and the number of coil sections (number of poles) of the stator section 106 is 2-3. It is. Therefore, unlike the conventional single-layer stepping motor system, the detent torque generated between the stator unit 106 and the rotating body 4 is not large.
- the detent torque between the rotating body 4 and the stator portion 106 when rotating the turbine 3 does not provide a very strong brake, and the turbine 3 can rotate smoothly with the rotating body 4 with a small amount of flow and water pressure.
- the relationship between the number of poles magnetized on the rotating body (rotor section) 4 and the number of coils (poles) of the stator section 106 is, for example, 4 ⁇ 3, which is not 2-3 as in this embodiment.
- One 3 or 4-6 may be used.
- 2.0 to 3.0 liters of the inflow path 1 It is acceptable to rotate the water wheel 3 using the fluid flowing into 2.
- the detent torque is strong and the brake is used as a brake.
- the turbine 3 does not rotate smoothly unless the flow rate exceeds 3 liters Z.
- the small power generator of each embodiment described above can generate power using a small flow rate of 2.0 to 3.0 liters Z.
- the flow rate of the faucet device to which the small power generation device of each of the above-described embodiments is attached is reduced by controlling the degree of opening of the valve so that the flow rate to the fluid passage is reduced.
- At least two modes, water saving mode and normal mode with normal flow rate, may be used, and the flow rate in water saving mode may be set to the above-mentioned 2.0 to 3.0 liters. By doing so, it is possible to generate power even in the water saving mode, and it is possible to obtain efficient power generation output in the normal mode.
- the detent torque can be reduced as compared with the conventional single-layer stepping motor system, this is used to increase the hole diameter of the nozzle 23, for example.
- the water pressure to the turbine 3 may be reduced to further reduce the risk of breakage of the nozzle ring 2 and the turbine 3 due to the water pressure.
- the minimum flow rate at which the water turbine 3 can rotate slightly increases by the amount of increase in the hole diameter of the nozzle 23 and the decrease in water pressure, but if the flow rate is, for example, about 2.5 liters per minute, It can be said that the performance is sufficiently high as compared with the conventional one.
- FIGS. 7A and 7B are cross-sectional views of a faucet device using the small power generation device of the present invention.
- the faucet device 1000 has a water outlet and a human body detection sensor 1001 for detecting a human hand at its tip.
- a solenoid valve 1003 for opening and closing the fluid passage 1004, a small power generator 1005 shown in FIG. 1 or FIG. 5, and opening and closing of the above-described solenoid valve 1003 are controlled.
- a DC conversion circuit (not shown) for converting the induced voltage generated by the small power generating device 1005 into DC
- a rectifier circuit not shown
- a power storage unit for storing the rectified current. (Not shown) and the like.
- the signal is output to the human body detection sensor 1001 and the signal power controller 1002.
- the controller 1002 outputs an open signal to the solenoid valve 1003, and the solenoid valve 1003 opens to discharge water.
- Water flows through the fluid passage 1004 in the faucet 100000 and reaches the small power generator 1005.
- the small power generator 1005 as described above, the water that has entered the inflow passage is raised by a nozzle or the like to raise the water pressure and hits the blades of the water turbine, and receives a rotational force from the water to generate an induced voltage. I do.
- This induced voltage is converted to DC by a DC conversion circuit (not shown), rectified through a rectifier circuit (not shown), and stored in a power storage unit (not shown).
- the current stored in the power storage unit (not shown) is supplied to the controller 1002.
- the human body detection sensor 1101 detects it, outputs a signal to the controller 1002, and closes the solenoid valve 1003.
- the operation of the faucet device 1000 is not limited to the above-described operation.
- the water may be automatically stopped.
- the small power generator according to the present invention is configured such that a rotating body connected to a water turbine rotated by passage of a fluid is used as a rotor part opposed to a stator part of a stepping motor having a stator part having a plurality of layers. I have. Therefore, each layer acts to cancel the detent torque between the stator portion and the rotor, and the detent torque can be reduced. As a result, the water turbine can be rotated at a low flow rate and a low water pressure.
- a small-sized power generator in which a rotating body connected to a water wheel that rotates by passage of a fluid is opposed to a stator part of a brushless motor provided with a stator part having a plurality of coils.
- the mouth part is arranged. Therefore, it is possible to reduce the detent torque. As a result, it becomes possible to rotate the water turbine at a low flow rate and a low water pressure.
- the faucet device of the present invention has at least two modes of the water saving mode and the normal mode by controlling the degree of opening of the valve, and the above-mentioned small power generator is disposed in the fluid passage.
- the faucet device of the present invention can generate electric power at a low flow rate and a low water pressure by arranging the small power generation device in which the detent torque is reduced in the fluid passage. Therefore, if the water pressure of the fluid supplied to the water turbine is set lower, the risk of damage to members due to high water pressure in the normal mode can be reduced, and sufficient power generation can be performed even in the water saving mode. It becomes possible to do.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Hydraulic Turbines (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01930184A EP1306962B1 (en) | 2000-05-17 | 2001-05-16 | Small power generating device and water faucet device |
US10/276,265 US6876100B2 (en) | 2000-05-17 | 2001-05-16 | Small power generating device and water faucet device |
AU56766/01A AU5676601A (en) | 2000-05-17 | 2001-05-16 | Small power generating device and water faucet device |
DE60141208T DE60141208D1 (de) | 2000-05-17 | 2001-05-16 | Kleine energieerzeugungseinrichtung und wasseransatzeinrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000144546 | 2000-05-17 | ||
JP2000-144546 | 2000-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001089066A1 true WO2001089066A1 (fr) | 2001-11-22 |
Family
ID=18651190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/004079 WO2001089066A1 (fr) | 2000-05-17 | 2001-05-16 | Dispositif de production d'une petite puissance et dispositif de robinet a eau |
Country Status (6)
Country | Link |
---|---|
US (1) | US6876100B2 (ja) |
EP (1) | EP1306962B1 (ja) |
CN (1) | CN1293694C (ja) |
AU (1) | AU5676601A (ja) |
DE (1) | DE60141208D1 (ja) |
WO (1) | WO2001089066A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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Also Published As
Publication number | Publication date |
---|---|
EP1306962B1 (en) | 2010-01-27 |
EP1306962A1 (en) | 2003-05-02 |
CN1293694C (zh) | 2007-01-03 |
CN1429423A (zh) | 2003-07-09 |
DE60141208D1 (de) | 2010-03-18 |
US20030164612A1 (en) | 2003-09-04 |
US6876100B2 (en) | 2005-04-05 |
EP1306962A4 (en) | 2003-07-09 |
AU5676601A (en) | 2001-11-26 |
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