WO2003104069A9 - Head lamp of bicycle and head lamp electric circuit - Google Patents
Head lamp of bicycle and head lamp electric circuitInfo
- Publication number
- WO2003104069A9 WO2003104069A9 PCT/JP2003/007448 JP0307448W WO03104069A9 WO 2003104069 A9 WO2003104069 A9 WO 2003104069A9 JP 0307448 W JP0307448 W JP 0307448W WO 03104069 A9 WO03104069 A9 WO 03104069A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- bicycle
- light emitting
- emitting diode
- coil
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
- B62J6/20—Arrangement of reflectors, e.g. on the wheel spokes ; Lighting devices mounted on wheel spokes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
- B62J6/01—Electric circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
- B62J6/02—Headlights
- B62J6/028—Headlights specially adapted for rider-propelled cycles with or without additional source of power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
- B62J6/06—Arrangement of lighting dynamos or drives therefor
-
- 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
- H02K7/1869—Linear generators; sectional generators
Definitions
- the present invention relates to a magnet mounted on a reel spoke of a bicycle rotating part.
- a stator including a rotor, and a generator coil mounted on the opposite side of the
- the present invention relates to a bicycle headlamp and an electric circuit including a circuit, a light emitting diode, and a condenser lens and at least 0, and generating electricity when the bicycle travels to turn on the light emitting diode.
- the first point is that if the side of the tire is pressed against the roller with a roller 1 when driving at night, frictional resistance to rotational movement occurs and the pedal becomes heavy.
- the second point is the muddy condition of the road surface between tire and roller, muddy There is a defect that the illuminance is reduced by the soil slip.
- the present invention is invented to provide a non-contact light-load bicycle headlamp and headlamp electric circuit according to the knowledge of the new technology except for the problems of the above-mentioned technology. Disclosure of the invention
- the headlight of a bicycle according to the invention of claim 1 comprises a plurality of magnets fanned alternately with N poles and S poles on the circumference of a reel spoke of a bicycle rotating part, etc.
- a rotor formed by attaching a plurality of magnet array plates having a shape of a partial circular arc portion of a predetermined circle arranged at intervals, an iron core fixed at a position facing the magnetic pole surface of the magnet array plate of the rotor
- a stator made of a generating coil composed of a plurality of coils, a generating coil of the stator and a capacitor connected in series to the generating coil resonate at a frequency synchronized with a predetermined relative velocity of each magnet,
- a headlamp electric circuit capable of rectifying, smoothing and outputting the electric power extracted from the power generation coil, a light emitting diode lit by the electric power supplied from the headlight electric circuit, a light of the light emitting diode
- a case body containing at least a conden
- the stator in the headlight of a bicycle according to claim 1, has a donut shape on the magnet net arrangement plate on the circumference of the reel spokes of the bicycle rotating part. Characterized by being arranged or divided like It is said that.
- the light emitting diode in the headlight of the bicycle according to claim 1, is provided with a white light emitting diode having a luminous intensity of at least two powers or more, and the lens is at a predetermined distance. It is characterized in that it is set to a focal length for securing a constant illuminance.
- the lens arranges hemispherical lenses for each light emitting diode.
- the respective hemispherical lenses calculate the R of the spherical surface, the diameter ⁇ , and the thickness t in order to obtain a predetermined illuminance by condensing the light within a prescribed circle of a prescribed distance, and
- the flat plate portion at the top of the lens is processed to be irregularly reflected to form a irregular reflection plate so that the presence of the bicycle from the front can be confirmed.
- a stator including the power generation coil, the headlight electric circuit, and the light emitting diode And the condenser lens is integrated in a case main body.
- the lighting electric circuit, the light emitting diode, and the collecting lens the case body And the stator including the power generation coil is provided separately on the outside of the case main body.
- the rectifying and smoothing circuit rectifies the electric power extracted from the power generation coil of the resonance circuit with a diode and uses a smoothing capacitor.
- a DC converter circuit for smoothing, and a constant current circuit comprising at least two transistors, two resistors and a capacitor, and supplying a DC current from the DC converter circuit to the light emitting diode with a constant current value. It is characterized by
- a light detection sensor and / or a manual switch is connected to the constant current circuit, and the constant current is
- the circuit is configured to supply or not supply a current to the light emitting diode based on a detection signal from the light detection sensor, or a current to the light emitting diode based on an on / off signal from the manual switch. It is characterized in that it has a circuit configuration to supply or not supply control, or a circuit configuration to supply or not supply current to the light emitting diode based on the signal of one or both of the light detection sensor and the manual switch. It is Brief description of the drawings
- FIG. 1 is a view showing a headlight of a bicycle according to a first embodiment of the present invention, and is a side view showing an example in which a magnet array plate is intermittently arranged on a reel spoke of the bicycle.
- FIG. 2 is a perspective view showing a headlamp of the noncontact light-duty bicycle according to the first embodiment of the present invention.
- FIG. 3 is an enlarged perspective view of a portion of a rotor and a stator of a headlamp of a bicycle according to a first embodiment of the present invention.
- FIG. 4 is an enlarged view of a rotor portion of a headlamp of a bicycle according to a first embodiment of the present invention
- FIG. 4 (a) is a magnet array of the rotor
- Fig. 4 (b) is an enlarged side view showing a magnet array plate of the rotor.
- FIG. 5 is an enlarged view of a magnet attached to a magnet array plate of a rotor of a headlamp of a bicycle according to a first embodiment of the present invention
- FIG. Fig. 5 (b) is a front view showing a magnet attached to the magnet array plate of the rotor
- Fig. 5 (c) is a perspective view showing the magnet attached to the magnet array plate of the rotor. It is a front view which expands and shows the magnet attached to the magnet arrangement
- FIG. 6 is an enlarged view of a generator coil of a stator of a headlight of a bicycle according to a first embodiment of the present invention
- FIG. 6 ( a ) is a generator core of the same stator
- Fig. 6 (b) is a side view showing the generator coil of the same stator.
- FIG. 7 is an explanatory view showing the positional relationship between the teeth of the generator coil of the stator of the headlight of the bicycle according to the first embodiment of the present invention and the magnets of the magnet array plate of the rotor. It is.
- FIG. 8 is a headlight of a bicycle according to a first embodiment of the present invention, wherein a rotor position attached to a reel spoke of the bicycle, a bicycle speed, It is a figure for demonstrating the relationship with a power generation frequency.
- FIG. 9 is a perspective view showing a structure of a headlight and a state of light irradiation in a headlight of a bicycle according to a first embodiment of the present invention.
- FIG. 10 is a view showing a positional relationship between a light emitting diode and a condenser lens in a headlamp of a bicycle according to a first embodiment of the present invention.
- FIG. 11 is a view for explaining the configuration of the light collecting lens used for the headlight of the bicycle according to the first embodiment of the present invention
- FIG. 11 ( a ) is a side view of the light collecting lens
- Fig. 11 (b) shows the rear view of the focusing lens
- Fig. 11 (c) shows the front view of the focusing lens.
- FIG. 12 is a diagram showing a test circuit including a resonant rectifier circuit applied to a headlamp 1 of a bicycle according to a first embodiment of the present invention.
- Fig. 13 shows the results obtained in the test circuit with the resonant rectifier circuit employed in the headlamp 1 of the bicycle according to the first embodiment of the present invention, and the test circuit with the conventional voltage doubler rectifier circuit.
- Fig. 13 (a) is a characteristic diagram showing each of the obtained results and the results obtained by the test circuit with the conventional full-wave rectifier circuit, and Fig. 13 (a) shows the characteristics obtained with the test circuit with the resonant rectifier circuit.
- Fig. 13 (b) shows the characteristics obtained by the test circuit with the voltage doubler rectifier circuit, and
- Fig. 13 (c) shows the characteristics obtained with the test circuit with the conventional full-wave rectifier circuit. It is a thing.
- FIG. 14 is a speed-current characteristic diagram showing the relationship between the current obtained in FIG. 13 and the speed of the bicycle.
- FIG. 15 is a circuit diagram showing a headlamp electric circuit according to a second embodiment of the present invention.
- FIG. 16 is a diagram of a headlamp electric circuit according to a second embodiment of the present invention. It is a circuit diagram showing a DC conversion circuit of a resonant circuit and a rectification smoothing circuit.
- FIG. 17 is a circuit diagram showing a constant current circuit in a headlamp electric circuit according to a second embodiment of the present invention. '
- FIG. 18 shows a resonant type power generation characteristic adopted in a headlamp of a bicycle according to a first embodiment of the present invention and a headlamp electric circuit according to the second embodiment;
- FIG. 6 is a power generation characteristic diagram comparing the resonant power generation characteristics, with the horizontal axis representing the number of revolutions and the vertical axis representing the electromotive force.
- FIG. 19 is a waveform diagram showing voltage waveforms of respective portions in a headlamp electric circuit according to a second embodiment used for a headlamp of a bicycle according to the first embodiment of the present invention.
- the horizontal axis is time, and the vertical axis is the voltage of each part.
- FIG. 20 is a view for explaining an effective line of a headlight of a bicycle according to a first embodiment of the present invention.
- FIG. 21 is a circuit diagram showing a circuit configuration capable of controlling lighting and extinguishing by adding a light detection sensor or a manual switch in a headlamp electric circuit according to a third embodiment of the present invention.
- FIG. 22 is a side view showing a state in which the magnet array plate is attached in a donut shape and an attached state of the headlight in a headlamp of a bicycle according to a fourth embodiment of the present invention.
- FIG. 23 is a perspective view showing a headlight of a bicycle according to a fifth embodiment of the present invention.
- BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.
- FIGS. 1 to 17 are views for explaining a headlamp and an electric circuit of the headlamp according to a first embodiment of the present invention.
- FIG. 1 is a view showing a headlight of a bicycle according to a first embodiment of the present invention, and is a side view showing an example in which a magnet array plate is intermittently arranged on a reel spoke of the bicycle. It is.
- FIG. 2 is a headlight of a bicycle according to a first embodiment of the present invention, showing a state in which the stator including the generating coil and the case main body part are separated in the embodiment of claim 7. It is a perspective view.
- FIG. 3 is an enlarged perspective view of an embodiment showing a stator and a rotor in a bicycle headlamp according to a first embodiment of the present invention.
- FIG. 4 is an enlarged view of a rotor portion of a headlamp of a bicycle according to a first embodiment of the present invention
- FIG. 4 (a) is a magnet array of the rotor
- Fig. 4 (b) is an enlarged side view showing a magnet array plate of the rotor.
- FIG. 5 is an enlarged view of a magnet attached to a magnet array plate of a rotor of a headlamp of a bicycle according to a first embodiment of the present invention
- FIG. Fig. 5 (b) is a front view showing a magnet attached to the magnet array plate of the rotor
- Fig. 5 (c) is a perspective view showing the magnet attached to the magnet array plate of the rotor. It is a front view which expands and shows the magnet attached to the magnet arrangement
- FIG. 6 is an enlarged view of a generator coil of a stator of a headlight of a bicycle according to a first embodiment of the present invention
- FIG. 6 ( a ) is a generator core of the same stator
- Fig. 5 (b) is a side view showing the generator coil of the same stator.
- FIG. 7 is an explanatory view showing the positional relationship between the teeth of the coil of the generator coil of the headlight of the bicycle according to the first embodiment of the present invention and the magnets of the magnet array plate of the rotor. It is.
- FIG. 8 is a headlight of a bicycle according to a first embodiment of the present invention, for explaining the relationship between a rotor position attached to a reel spoke of the bicycle, a bicycle speed, and a power generation frequency.
- FIG. 8 is a headlight of a bicycle according to a first embodiment of the present invention, for explaining the relationship between a rotor position attached to a reel spoke of the bicycle, a bicycle speed, and a power generation frequency.
- FIG. 9 is a perspective view showing a structure of a lens portion of the headlight and a state of light irradiation in a headlight of a bicycle according to a first embodiment of the present invention.
- FIG. 10 is a view showing a positional relationship between a light emitting diode and a condenser lens in a headlamp of a bicycle according to a first embodiment of the present invention.
- FIG. 11 is a view for explaining a configuration of a condenser lens used for a headlamp of a bicycle according to the first embodiment of the present invention
- FIG. 11 (a) is a side of the condenser lens
- Fig. 11 (b) shows the rear view of the focusing lens
- Fig. 11 (c) shows the front view of the focusing lens.
- the headlamp 1 of the bicycle is roughly divided into a rotor 3, a stator 5 and a case body 7 as shown in FIGS. 1 and 2.
- the case body 7 incorporates at least a headlamp electric circuit 71, a light emitting diode 73, a condenser lens 75, and a reflection plate 77.
- the rotor 3 is, as shown in FIG. 1 and FIG. Partial arc part of a predetermined circle in which several magnets 3 1, 3 1, ... are arranged at equal intervals in the form of a fan with N poles and S poles alternately on the circumference of the reel spoke 91 of the rotating part of the rolling stock 9
- a plurality of magnet array plates 33 having the following shape are arranged intermittently.
- the magnet array plate 33 is made of a high permeability material such as iron, preferably of a high permeability carbon steel, preferably having a predetermined radius r
- Base plate 33a having a shape of a part of a circular arc of a circle, and magnets 3, 1, 3 1, ... arranged on the base plate 33a at equal intervals p in the form of N poles and S poles alternately.
- a mounting hole 33b, 33b provided on the end side of the base flat plate 33a. Further, as shown in FIGS.
- the magnet 31 attached to the magnet array plate 33 has, for example, a length of 15 [thigh] and a width of, for example, 6 [mound].
- the thickness is, for example, 4 [thigh], and the NS polarity is formed in the thickness direction.
- neodymium 40 having a coercive force of 3200 to 3500 (G (G aus s)) is used as the magnet 31.
- the plurality of magnet arrays 33, 33,... are intermittently attached to and arranged on the reel spokes 91 of the motor vehicle 9 as shown in FIG. Enables intermittent power generation.
- the stator 5 is composed of a power generation unit case 51 having a mounting unit 51a and a power generation coil 53 provided inside the power generation unit case 51. There is. As shown in FIG. 1, the stator 5 fixes the mounting portion 5 1 a of the power generation case 5 1 to the fixed piece 93 a of the front wheel fork 93 of the bicycle 9, thereby generating the generator coil of the stator 5. 53 as shown in FIG. The magnet array plate 3 of the rotor 3 is fixed at a position facing the pole faces of the magnets 3 1, 3 1, ... of the rotor 3.
- the generator coil 53 of the stator 5 is formed in a substantially E shape of a material such as amorphous or silicon steel plate as shown in FIG. 2, FIG. 3, FIG. 6 (a) and FIG. 6 (b). It is comprised from the comprised iron core 53a, and the coil 53b wound by the iron core part of the middle of the substantially E shape of said iron core 53a.
- FIG. 7 The positional relationship between the magnets 3 1, 3 1,... On the magnet array plate 3 3 of the rotor 3 and the teeth of the iron core 5 3 a of the power generation coil 5 3 of the stator 5 is shown in FIG. Thus, the distance between the magnets 3 1, 3 1,... And the distance between the teeth of the iron cores 5 3 a are formed substantially the same. Further, the distance between the surface of the magnets 3 1, 3 1, ... of the magnet array plate 3 3 of the rotor 3 and the surface of the teeth of the iron core 5 3 a of the generator coil 5 3 of the stator 5 is , Figure 7
- the mounting position of the reel spokes 9 of the bicycle 9 of the magnet array board 3 3 is r 2 [mm]
- the magnet array board 3 3 from the wheel outer periphery Assuming that the distance to the mounting position of d is [mm],
- the power generation frequency f when the values of distance r 1 and distance r 2 are given for a 24-inch, 26-inch and 28-inch bicycle 9 using this equation 3 is as follows. For example, for a 24-inch bicycle 9, when the rl is 305 [mm] and r 2 is 1 70 [mm] and the bicycle speed is the standard speed (1 5 [km / h], the same applies below) f becomes 66.4 [H z]. Also, for example, for the 26-inch bicycle 9, when the r 1 is 330 mm and r 2 1 9 5 mm and the bicycle speed is the standard speed, the power generation frequency f is 70.3 Hz ].
- the power generation frequency f is 73.9 [Hz].
- the case main body 7 includes the generating coil 53 of the stator 5 and a capacitor (described later) connected in series to the generating coil 53 for each magnet of the rotor 3.
- Headlight electrical circuit 71 capable of resonating at a frequency synchronized with a predetermined relative speed of the target 31, 31, ..., rectifying, smoothing and outputting the electric power extracted from the generating coil 53, and the electric light of the headlight
- a light-emitting diode 73 which lights up by the power supplied from the circuit 71, and at least a condenser lens 75 for condensing the light of the light-emitting diode 73 on the front of the bicycle 9 to illuminate the road surface on the front of the bicycle 9 It is done.
- the headlight electrical circuit 7 1 of the case body 7 and the power generation coil 53 of the stator 5 are mutually connected by an electrical connection line 11.
- the light emitting diode 73 has a cannonball type having a luminous intensity performance of at least 2 [Candela (cd)] or more (Nichia Chemical Industry Co., Ltd., product name: NS PW31 2B S, NS PW300 BS) It is desirable to use a white light emitting diode under normal conditions of use, preferably a bullet type having a luminous performance of 6 [Candera (cd)] or more (manufactured by Nichia Chemical Industries, Ltd., product name: NS PW500 BS) A white light diode is used under normal use conditions of voltage and current value, and the focusing lens 75 is set to a focusing distance that can ensure a constant illuminance at a predetermined distance.
- two (several) light emitting diodes 73 are used in this embodiment, and two light collecting lenses 75 are used.
- a hemispherical lens is formed, and the condensing lens 75 of the hemispherical lens is disposed for each light emitting diode 73.
- the condenser lens 75 of each hemispherical lens condenses light within a prescribed circle of a prescribed distance to obtain a predetermined illuminance,
- the spherical radius R, diameter ⁇ , and thickness t of the lens formed as shown in FIG. 11 and FIG. 11 are calculated.
- the flat plate portion on the upper portion of the condenser lens 75 is processed to irregularly reflect the lens component.
- the irregular reflection plate 77 is configured so that the presence of the bicycle from the front can be confirmed.
- the central axes of the hemispherical lenses of the focusing lenses 75, 75 are positioned on the optical axes of the light emitting diodes 73, 73 to effectively focus the light.
- the condenser lens 75 has a thickness t of, for example, approximately 10 mm, a spherical surface R of, for example, approximately 13.8, and a diameter of ⁇ of, for example, 24.5 mm. .
- irregular reflection on the plate material constituting the lens is provided on the upper part of the condenser lens 75.
- the irregular reflection plate 77 is formed by processing.
- the irregular reflection plate 77 enables the presence of the bicycle 9 to be more easily confirmed than the forward direction.
- FIG. 12 is a diagram showing a test circuit including a resonant rectifier circuit employed in the headlamp 1 of the bicycle according to the first embodiment of the present invention.
- the test circuit shown in FIG. 12 is configured as follows. That is, 3 is a rotor, 3 1 is a magnet, and 3 3 is a magnet array plate. Further, reference numeral 53 denotes a power generation core, reference numeral 5 3 a denotes an iron core, and reference numeral 5 3 b denotes a coil. Further, as shown in FIG. 12, the capacitor C 0 is connected in series to the diode D 2 and is connected to both ends of the coil 5 3 b.
- Fig. 13 shows a test circuit with a resonant rectifier circuit adopted in the bicycle headlamp 1 according to the first embodiment of the present invention, a test circuit with a conventional voltage doubler rectifier circuit, and all the conventional test circuits.
- Fig.13 (a) shows the characteristic obtained by the test circuit with the resonant type rectifier circuit
- Fig.13 (b) shows the doubled voltage of the test circuit with the wave rectification circuit
- Figure 13 (c) shows the characteristics obtained in the test circuit with the conventional full-wave rectifier circuit.
- Fig. 14 The characteristic of the current with respect to the speed shown in Fig. 14 is shown in Fig. 14.
- the horizontal axis represents the speed [km / h] and the vertical axis represents the load. Shows the current value flowing to the
- the resonant rectifier circuit employed in the headlamp of the bicycle according to the first embodiment of the present invention as shown by "resonance type" in FIG.
- the current value increases with the speed when the fixed speed (for example, approximately 11 [km / h] in the figure) is exceeded, and the voltage doubler type is eliminated.
- the speed for example, approximately 2 6 [km / h] in the figure
- the current value does not become a certain value or more.
- the generated power does not increase, so there is an advantage that an excessive current does not flow to the load.
- the resonant rectifier circuit employed in the headlamp 1 of the bicycle according to the first embodiment of the present invention is effective.
- FIGS. 15 to 19 are diagrams for explaining a headlamp electric circuit according to a second embodiment of the present invention.
- FIG. 15 is a circuit diagram showing a headlamp electric circuit according to a second embodiment of the present invention.
- FIG. 16 is a circuit diagram showing a DC conversion circuit of a resonant circuit and a rectifying and smoothing circuit in a headlamp electric circuit according to a second embodiment of the present invention.
- FIG. 17 is a circuit diagram showing a constant current circuit in a headlamp electric circuit according to a second embodiment of the present invention.
- a headlamp electric circuit 7 1 according to a second embodiment of the present invention can be roughly divided into a resonant circuit 71 1 and a resonant circuit 71 1, as shown in FIGS. It consists of a rectifying and smoothing circuit 7 1 3.
- the rectifying and smoothing circuit 7 13 is divided into a direct current conversion circuit 7 1 3 a and a constant current circuit 7 1 3 b, as shown in FIGS.
- the resonant circuit 71 includes a power generation coil 5 3 of the stator 5 and a capacitor CO connected in series to the power generation coil 5 3.
- the condenser C 0 synchronize with the moving speed (already described with reference to FIG. 8) when moving at a predetermined relative speed in the illustrated magnet moving direction of each of the magnets 3 1, 3 1, ... It resonates at the frequency you
- the rectifying and smoothing circuit 7 13 is configured to rectify and smooth the power extracted from the power generation coil 5 3 of the resonant circuit 7 1 1 and to supply it to the light emitting diode 7 3.
- the DC conversion circuit 7 13 a of the rectifying and smoothing circuit 7 13 rectifies the electric power extracted from the power generation coil 53 of the resonance circuit 7 11 by means of the diode D 1 and D 2 and smoothes it.
- the circuit configuration is such that smoothing is performed by the capacitor C1.
- the constant current circuit 7 13 b of the rectifying and smoothing circuit 7 13 is composed of at least two transistors TR 1 and TR 2, two resistors R 1 and R 2, and a capacitor C 2.
- the circuit configuration is such that a direct current from the direct current conversion circuit 7 13 a is supplied to the light emitting diode 73 with a constant current value.
- a concrete circuit configuration of the resonant circuit 71 and the DC conversion circuit 7 13 a will be described.
- a capacitor CO is connected in series to the generating coil 53.
- a series resonant circuit The anode A side of the diode D1 is connected to one end of the power generation coil 53 connected in series.
- one end of the capacitor C0 connected in series is connected to the anode A side of the diode D2, and the cathode K side of the diode D2 is connected to the anode A side of the diode D1.
- the technical means of the above technical configuration provides a series resonant circuit for enhancing the power generation efficiency of the power generation coil.
- the plus (+) side of the smoothing capacitor C 1 is connected via the resistor R 1 to the collector (c) of the NPN transistor TR 1, the base (B) of the NPN transistor TR 2, and the plus of the capacitor C 2 +) Connected to terminal.
- the negative (-) side of the smoothing capacitor C1 is connected to the negative (one) terminal of the capacitor C2, the emitter (E) of the transistor TR1, and one end of the resistor R2. It is connected to the base (B) of the transistor TR 1, the emitter (E) of the transistor TR 2, and the other end of the resistor R 2.
- the output terminal of the constant current circuit 71 3 b one output terminal is the plus (+) side of the smoothing capacitor C 1, and the other output terminal is the collector (C) of the transistor TR 2.
- FIGS. 1 to 11 Description will be made based on FIGS. 15 to 17 and with reference to FIGS. 18 to 20.
- FIG. 18 is a resonant type power generation characteristic adopted in a headlamp of a bicycle according to a first embodiment of the present invention and a headlamp electric circuit according to the second embodiment;
- FIG. 10 is a power generation characteristic diagram comparing the conventional non-resonant power generation characteristics, in which the horizontal axis represents the number of revolutions and the vertical axis represents the electromotive force.
- FIG. 19 is a waveform diagram showing voltage waveforms of respective portions in a headlamp electric circuit according to a second embodiment used for a headlamp of a bicycle according to the first embodiment of the present invention.
- the horizontal axis is time, and the vertical axis is the voltage of each part.
- FIG. 20 is a view for explaining an effective line of a headlight of a bicycle according to a first embodiment of the present invention.
- the bicycle 9 moves, the wheels rotate, and when the rotor 3 consisting of the magnet array plates 3 3 3 3 ... arranged in divisions in the reel spokes 9 1 rotates, the generator coil 5 3 of the stator 5 Intermittently generated induced power (When the magnet array plate 33 of the rotor 3 is located in the generating coil 53 portion of the stator 5 and generates electricity, the magnet array plate of the rotor 3 is generated When the portion without 3 3 passes the generating coil 5 3 portion of the stator 5, no power is generated).
- a resonant circuit 7 11 is formed by the power generation coil 5 3 of the stationary element 5, the power generation coil 5 3 and the capacitor C 0. Since the series resonance is configured to be performed at the standard speed of the bicycle 9, the induced power generated by the power generation coil 53 has a speed from the low speed to the standard speed as shown by the symbol a in FIG. Increases rapidly, and when it exceeds the standard speed, it has a gentle electromotive force characteristic.
- the electromotive force increases in proportion to the speed as shown by the symbol b in FIG.
- the electromotive force induced by the power generation coil 53 of the stator 5 is stored in the smoothing capacitor C1 by the action of the diode D1 and the capacitor C0, and the diode D2 and the smoothing capacitor C1.
- the voltage V1 across the smoothing capacitor C1 has a characteristic as shown by a symbol V1 in FIG.
- the DC output of the smoothing capacitor C 1 is a voltage containing a large amount of ripples as shown by symbol VI in FIG. 19. Therefore, the resistor R is connected from the (+) side of the DC output across the smoothing capacitor C 1.
- the voltage V 1 containing a large amount of ripples in the DC output is delayed in the integration phase by the small capacity capacitor C 2 through the resistor R 1, and the ripple voltage V 2 of the reverse phase (see FIG.
- the current flowing between the collector (C) 'emitter (E) of the transistor TR 2 is controlled by applying V 2) to the base (B) of the transistor TR 2.
- This current control controls the current in reverse phase to the ripple voltage across the series connected light emitting diodes 73, 73 connected to the collector (C) of the transistor TR 2, so the series connected light emitting diodes 73, 73
- the flowing current I is greatly reduced in ripple as shown by symbol I in FIG.
- a negative feedback 'bag (negative feedback) is applied by the resistor R2 connected between the emitter (E) of the transistor TR 2 and the negative (one) side of the smoothing capacitor C 1 to further reduce the ripple. It is measured.
- the test apparatus used for this test used a DC constant current power supply and a luminometer as a test apparatus based on JISC9502.
- the same voltage and current are supplied from the test DC constant current power supply as the light-emitting diodes 73 and 73 of the headlight 1 of the bicycle are supplied from the headlight circuit 71, and the position shown in FIG.
- the illuminance was measured with a test luminometer in the context. That is, in FIG. 20, the position A is an extension of the central axis of the lens, and the positions B to E are positions 30 cm apart from the position A, respectively. The illuminance was measured by placing a test light meter at.
- test results are as follows. When 25 mA is applied to the light emitting diode 73, point A is 135 cd, point B is 92.3 cd, point C is 1 1 9 cd, and point D is The score was 124 cd and the E point was 121 cd. The average illuminance of these points B to E was 1 14 [cd].
- the A point is 400 [cd] or more, and the average value of the B point to E point needs to be 100 [cd] or more. There is. Therefore, it is clear that the average value is passed.
- the color of the light emitted from the headlight 1 of the bicycle is white or yellowish light in JIS, and it is necessary to be as shown in the table given in JIS.
- the color of the light emitted from the headlight of the bicycle according to the first embodiment is white and conforms to the standard.
- the headlamp 1 of the bicycle according to the first embodiment of the present invention and the headlamp electrical circuit 71 according to the second embodiment, the following advantages can be obtained.
- the generator is non-contacting, so there is no frictional resistance and power can be generated, and the labor when traveling can be significantly reduced.
- the capacitor C 0 is connected in series to the power generation coil 53 so that series resonance can be made to the standard traveling speed of the bicycle 9, compared to the conventional non-resonance type automobile headlight.
- the headlight of the bicycle according to the present invention provides a 50% increase in power generation effect.
- the rectifying and smoothing circuit is configured to amplify the capacity of the capacitor C 1, the capacity of about 10 or less is sufficient and the feedback circuit is provided. Can be set.
- the condensing lens As a hemispherical lens and positioning it on the optical axis of the light emitting diode to effectively focus the light, at the bicycle standard speed At a distance of 5 [m] ahead, in a circle with a radius of 3 0 [cm], illuminance of 5 [Lx] or more can be obtained.
- the headlight of the bicycle of the present invention it is possible to obtain illuminance sufficient to confirm an object of about 10 cm at a distance of 10 m.
- the irregular reflection plate By forming the irregular reflection plate on the upper side to form the irregular reflection plate 77, the existence of the rotating vehicle 9 can be easily confirmed from the front direction, which is effective in preventing traffic accidents.
- the stator 5 and the case main body 7 are separated, so that the case main body 7 part can be located at any position, for example, the steering wheel position. It can be attached to etc.
- FIG. 21 is a circuit diagram showing a circuit configuration in which a light detection sensor or a manual switch can be added to control lighting and extinguishing in the electric circuit according to the third embodiment of the present invention. .
- a light detection sensor 13 and a manual or manual switch 15 are attached to the constant current circuit 7 13 b of the rectifying and smoothing circuit 7 13. That is, in the constant current circuit 7 1 3 b, between the base (B 1) of the transistor TR 2 and the emitter (E 2) of the transistor TR 1 connected via the resistor R 2, ie, TR Collector (C) of 1 and Emitter (E) The light detection sensor 13 is connected between. As a result, the transistor TR 2 is turned on / off based on the detection signal from the light detection sensor, and the current is supplied to the light emitting diodes 73, 73 in accordance with this, and control is performed.
- both the light detection sensor 13 and the manual switch 15 are connected in series or in parallel, and one or both signals of the light detection sensor and the manual switch are Based on this, the transistor TR 2 is on / off controlled, and current is supplied to the light emitting diodes 73, 73 to perform control so as not to be supplied.
- FIG. 22 is a front view of a bicycle according to a fourth embodiment of the present invention, showing a state in which the magnet array plate is attached in a donut shape and a state of attachment of the headlight. It is a side view which shows a state.
- the rotor 3 is formed by: the magnet array plate 33 on the circumference of the reel spokes 91 of the rotating part of the bicycle 9; As shown in FIG. 2, they are arranged in a donut shape.
- continuous power generation is performed in which induced power is continuously generated in the power generation coil 53 of the stator 5, and the headlights 1 and 2 of the bicycle according to the first embodiment of the present invention.
- averaging can be performed more reliably, and the light emitting diodes 7 3 and 7 3 can be continuously lit.
- FIG. 23 is a perspective view showing a headlight of a bicycle according to a fifth embodiment of the present invention.
- the stator 5 and the case main body 7 are integrally formed. That is, the stator 5 including the power generation coil 53, the headlamp electric circuit 71, the light emitting diodes 73 and 73, the condenser lens 75, and the irregular reflection plate 77. , It is built into the case body 7 and integrated.
- symbol 7a is an attachment piece to bicycle 9 3a.
- stator 5 and the case body 7 are integrally formed, they can be attached to the existing bicycle headlight position. It is easy to replace. Industrial applicability
- the generator due to the above-described construction action, compared to the conventional roller-type dynamo generator, the generator can be made non-contacting to generate power without friction resistance, and the labor at the time of traveling is significantly reduced. Have an effect.
- a capacitor is connected in series to the power generation coil and series resonance is performed to increase the power generation effect by 50% compared to the conventional non-resonance type bicycle headlight. You can get it.
- the constant of the resonance frequency as the standard speed, it is possible to suppress the current at the time of the overspeed of the motor vehicle and to protect the light emitting diode.
- the constant current circuit since the constant current circuit has a circuit configuration capable of amplifying the capacitance of the capacitor, there is an effect of being able to reliably smooth even if it contains a large ripple, and to set a current limit.
- the present invention it is possible to automatically turn on / off according to the ambient brightness, or to turn on / off when it is desired to turn on / off with a simple operation.
- the lens is a hemispherical lens, and by locating the light effectively on the optical axis of each light emitting diode, a predetermined illuminance is obtained within a circle at a predetermined distance at a bicycle standard speed. be able to.
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004511155A JP4145872B2 (ja) | 2002-06-11 | 2003-06-11 | 自転車の前照灯及び前照灯電気回路 |
EP03733383A EP1532042A1 (en) | 2002-06-11 | 2003-06-11 | Head lamp of bicycle and head lamp electric circuit |
KR10-2004-7020055A KR20050004298A (ko) | 2002-06-11 | 2003-06-11 | 자전거의 전조등 및 전조등 전기 회로 |
US10/516,513 US7275844B2 (en) | 2002-06-11 | 2003-06-11 | Generator powered bicycle headlamp and electrical circuit |
AU2003242292A AU2003242292A1 (en) | 2002-06-11 | 2003-06-11 | Head lamp of bicycle and head lamp electric circuit |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-204822 | 2002-06-11 | ||
JP2002204822 | 2002-06-11 | ||
JP2003-165772 | 2003-05-07 | ||
JP2003165772 | 2003-05-07 |
Publications (2)
Publication Number | Publication Date |
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WO2003104069A1 WO2003104069A1 (ja) | 2003-12-18 |
WO2003104069A9 true WO2003104069A9 (en) | 2006-09-21 |
Family
ID=29738486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/007448 WO2003104069A1 (ja) | 2002-06-01 | 2003-06-11 | 自転車の前照灯及び前照灯電気回路 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7275844B2 (ja) |
EP (1) | EP1532042A1 (ja) |
JP (1) | JP4145872B2 (ja) |
KR (1) | KR20050004298A (ja) |
CN (1) | CN1649766A (ja) |
AU (1) | AU2003242292A1 (ja) |
WO (1) | WO2003104069A1 (ja) |
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-
2003
- 2003-06-11 EP EP03733383A patent/EP1532042A1/en not_active Withdrawn
- 2003-06-11 JP JP2004511155A patent/JP4145872B2/ja not_active Expired - Fee Related
- 2003-06-11 WO PCT/JP2003/007448 patent/WO2003104069A1/ja not_active Application Discontinuation
- 2003-06-11 CN CNA038097710A patent/CN1649766A/zh active Pending
- 2003-06-11 US US10/516,513 patent/US7275844B2/en not_active Expired - Fee Related
- 2003-06-11 AU AU2003242292A patent/AU2003242292A1/en not_active Abandoned
- 2003-06-11 KR KR10-2004-7020055A patent/KR20050004298A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1532042A1 (en) | 2005-05-25 |
JP4145872B2 (ja) | 2008-09-03 |
US7275844B2 (en) | 2007-10-02 |
AU2003242292A1 (en) | 2003-12-22 |
WO2003104069A1 (ja) | 2003-12-18 |
KR20050004298A (ko) | 2005-01-12 |
CN1649766A (zh) | 2005-08-03 |
AU2003242292A8 (en) | 2003-12-22 |
US20050243545A1 (en) | 2005-11-03 |
JPWO2003104069A1 (ja) | 2005-10-06 |
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