Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
  • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

Definitions

• This disclosure relates to a power generation module and a power generation device.
• a device has a power generating element unit that includes a composite magnetic wire (also called “Wiegand wire”) as a magnetic material that generates a large Barkhausen effect, a coil wound around the composite magnetic wire, and a magnet that moves relative to the power generating element unit.
• a composite magnetic wire also called "Wiegand wire”
• Patent Document 1 proposes a pulse generator using a magnetic material that generates the large Barkhausen effect.
• Patent Document 2 proposes a power generator using a magnetic material that generates the large Barkhausen effect.
• the present disclosure aims to provide a power generation module with high power generation efficiency and a power generation device including such a power generation module.
• the power generation module disclosed herein comprises a power generation element unit having a magnetic body with a first magnetic collecting surface and a second magnetic collecting surface and a coil wound around the magnetic body; and a magnet unit having a first magnet with a first magnetized surface of a first polarity and a second magnet with a second magnetized surface of a second polarity opposite to the first polarity; at least one of the power generation element unit and the magnet unit is installed so as to be able to move along a guide member, and the power generation element unit and the magnet unit are installed so that, during the movement, there are a first state in which the first magnetic collecting surface and the first magnetized surface face each other, and a second state in which the first magnetic collecting surface and the second magnetized surface face each other.
• the power generation device disclosed herein is characterized by having the above-mentioned power generation module, a rectifier that rectifies the positive and negative power generation pulses generated in the coil of the power generation module, and a power storage unit that stores the power of the power generation pulses output from the rectifier.
• the power generation module or power generation device disclosed herein can achieve high power generation efficiency.
• FIG. 2 is a perspective view schematically illustrating the configuration of the power generation module according to the first embodiment (when the first magnetic flux collecting surface of the power generation element portion faces the first magnetized surface of the first magnet).
• FIG. 2 is a perspective view schematically showing the configuration of the power generation module according to the first embodiment (when the first magnetic collecting surface of the power generation element portion faces the second magnetized surface of the second magnet).
• FIG. 2 is a diagram showing the flow of magnetic field lines in FIG. 1;
• FIG. 3 is a diagram showing the flow of magnetic field lines in FIG. 2 .
• 4A and 4B are a perspective view and a side view, respectively, that schematically show the configuration of a power generating element section.
• FIG. 10A and 10B are a perspective view and a side view schematically illustrating the configuration of another power generating element section.
• FIG. 10 is a diagram showing typical magnetic field lines when the first magnetic collecting surface of the power generating element portion faces the first magnetized surface of the first magnet.
• FIG. 10 is a diagram showing typical magnetic field lines when the first magnetic collecting surface of the power generating element portion faces the second magnetized surface of the second magnet.
• 1 is a graph showing the relationship between the position of the magnet [mm] and the magnetic flux density [mT] in the magnetic body.
• 1 is a block diagram showing the configuration of a power generation device having a power generation module according to a first embodiment; FIG.
• FIG. 10 is a diagram showing an induced voltage waveform (dashed line) when an iron core is used as the magnetic body, and an induced voltage waveform (solid line) when a composite magnetic wire that generates a large Barkhausen effect is used as the magnetic body.
• FIG. 10 is a diagram showing an induced voltage waveform when a composite magnetic wire and a magnetic collector (iron core) are used as a magnetic body.
• FIG. 11 is a perspective view schematically illustrating the configuration of a power generation module according to a second embodiment (when the first magnetic collecting surface of the power generation element portion faces the first magnetized surface of the first magnet).
• FIG. 11 is a perspective view schematically showing the configuration of a power generation module according to embodiment 3 (when the first magnetic collecting surface of the power generation element portion faces the first magnetized surface of the first magnet, and the second magnetic collecting surface faces the third magnetized surface of the third magnet).
• FIG. 10 is a perspective view schematically showing the configuration of a power generation module according to embodiment 3 (when the first magnetic collecting surface of the power generation element portion faces the second magnetized surface of the second magnet, and the second magnetic collecting surface faces the fourth magnetized surface of the fourth magnet).
• 10A is an oblique view showing a schematic configuration of a power generation module according to embodiment 4
• FIG. 10B is an oblique view showing a schematic internal configuration of the power generation module according to embodiment 4.
• FIG. 1 is a perspective view that schematically shows the configuration of a power generation module 10 according to embodiment 1 (when the first magnetic flux collecting surface 110a of the power generation element section 100 faces the first magnetized surface 210a of the first magnet 210).
• Fig. 2 is a perspective view that schematically shows the configuration of a power generation module 10 (when the first magnetic flux collecting surface 110a of the power generation element section 100 faces the second magnetized surface 220a of the second magnet 220).
• the power generation module 10 has a power generation element section 100 and a magnet section 200.
• the power generation element section 100 and the magnet section 200 are provided so that their relative positions can be changed.
• the power generating element unit 100 has a magnetic body 110 having a first magnetic collecting surface 110a and a second magnetic collecting surface 110b, and a coil 120 wound around the magnetic body 110.
• FIG. 3 magnetic field lines emerging from magnetized surface 210a (north pole) of magnet 210 enter first magnetic field collecting surface 110a, pass through magnetic body 110, and emerge into the air from second magnetic field collecting surface 110b.
• the magnetic field lines passing through first magnetic field collecting surface 110a and second magnetic field collecting surface 110b both point in the +Y direction.
• the first magnetic field collecting surface 110a faces the magnetized surface 210a (south pole) of the magnet 220, so the magnetic field lines pass from the second magnetic field collecting surface 110b through the magnetic body 110, via the first magnetic field collecting surface 110a, and toward the magnetized surface 210a (south pole).
• the magnetic field lines passing through the first magnetic field collecting surface 110a and the second magnetic field collecting surface 110b both point in the -Y direction.
• the magnetized surface of the magnet and the magnetized surface of the magnetic body face each other, and the longitudinal direction of the magnetized surface and the magnetic body (the direction of the magnetic field lines that contribute to power generation in the coil) are perpendicular, the magnetic field lines emerging from the magnetized surface of the magnet enter the magnetized surface in a straight line, travel almost straight through the magnetic body, and emerge from the magnetized surface on the opposite side. This means that there is very little loss in the magnetic field lines emerging from the magnet, resulting in the most efficient electromagnetic induction power generation.
• the magnet section 200 has a first magnet 210 having a first magnetized surface 210a of a first polarity, and a second magnet 220 having a second magnetized surface 220a of a second polarity that is opposite to the first polarity.
• first polarity is the north pole and the second polarity is the south pole.
• first polarity may be the south pole and the second polarity may be the north pole.
• At least one of the power generation element unit 100 and the magnet unit 200 is installed so as to be able to move (i.e., displace) along the guide member 300.
• Movement along the guide member 300 is, for example, linear movement parallel to the first magnetized surface 210a of the first magnet 210 and the second magnetized surface 220a of the second magnet 220.
• the magnet unit 200 moves along the guide member 300, but instead of or in addition to such movement, the power generation element unit 100 may move along a guide member parallel to the guide member 300.
• the guide member 300 may include a drive shaft, rail, rotary shaft, linear motion shaft, etc.
• the guide member 300 is attached, for example, to a guide rail parallel to one of the X, Y, and Z axes of a five-axis machining center, a window sash rail, a linear motion spring, etc.
• the guide member 300 may be part of a device having a movement mechanism (e.g., a machining center), or may be part of the power generation module 10.
• the power generation module 10 may have a power generation element section 100, a magnet section 200, and a guide member 300.
• the power generation module 10 is configured so that, during the movement of the magnet section 200, there are two states: a first state (i.e., the state shown in Figure 1) in which the first magnetic collection surface 110a of the magnetic body 110 and the first magnetized surface 210a of the first magnet 210 face each other; and a second state (e.g., the state shown in Figure 2) in which the first magnetic collection surface 110a of the magnetic body 110 and the second magnetized surface 220a of the second magnet 220 face each other.
• the first magnetic collection surface 110a of the magnetic body 110 is a planar magnetic pole surface
• the first magnetized surface 210a of the first magnet 210 is also a planar magnetic pole surface.
• the first magnetic collection surface 110a and the first magnetized surface 210a are parallel and close to each other with a small gap between them, i.e., the surfaces face each other, so that the magnetic flux of the first magnet 210 can be efficiently guided to the magnetic body 110.
• the first magnetic collecting surface 110a of the magnetic body 110 is a planar magnetic pole surface
• the second magnetized surface 220a of the second magnet 220 is also a planar magnetic pole surface.
• the first magnetic collecting surface 110a and the second magnetized surface 220a are parallel and close to each other with a small gap between them, i.e., the surfaces face each other, so that the magnetic flux of the second magnet 220 can be efficiently guided to the magnetic body 110.
• the magnet unit 200 is moved, for example, by the driving force of a processing machine (machine tool). Alternatively, the magnet unit 200 can be moved by human force (for example, the force used to open or close a window).
• Figure 5(A) is a perspective view showing a schematic configuration of the power generation element section 100
• Figure 5(B) is a side view thereof.
• the magnetic body 110 has a composite magnetic wire that is a magnetic core 111 that generates a large Barkhausen effect in response to changes in magnetic flux.
• the magnetic body 110 preferably has a magnetic collector (soft magnetic material) 112 that surrounds the outer periphery of the magnetic core 111.
• the magnetic collector 112 is disposed at both ends of the magnetic core 111, and the coil 120 is wound around the magnetic core 111.
• the soft magnetic material used for the magnetic collector 112 is preferably a steel material such as SS400 (general structural rolled steel material specified in JIS G3101) or S45C (carbon steel material for mechanical structures specified in JIS G4051), a magnetic stainless steel material such as SUS430 or SUS440 (hot-rolled stainless steel plate specified in JIS G4304), or a high-permeability material such as permalloy or permendur, but any material with a magnetic permeability greater than that of air (a material with a relative magnetic permeability greater than 1) will suffice.
• SS400 general structural rolled steel material specified in JIS G3101
• S45C carbon steel material for mechanical structures specified in JIS G4051
• a magnetic stainless steel material such as SUS430 or SUS440 (hot-rolled stainless steel plate specified in JIS G4304)
• a high-permeability material such as permalloy or permendur
• FIG. 6(A) is a perspective view that schematically illustrates a different configuration of the power generating element unit 100 from the configurations shown in FIGS. 5(A) and (B), and FIG. 6(B) is a side view thereof.
• the magnetic body 110 has a bobbin shape.
• the magnetic body 110 is also called a magnetic bobbin.
• the coil 120 is wound around the narrowed portion of the magnetic bobbin.
• the magnetic material 110 of the power generating element section 100 can be made solely from a soft magnetic material such as iron, as shown in Figures 6(A) and (B), but power generation efficiency is improved by providing a magnetic core 111 that generates the large Barkhausen effect, as shown in Figures 5(A) and (B).
• the length (i.e., width) of the first magnetized surface 210a of the first magnet 210 and the second magnetized surface 220a of the second magnet 220 in the direction D1 of movement of the magnet part 200 is a first length L1
• the length (i.e., width) of the first magnetized surface 110a and the second magnetized surface 110b of the magnetic body 110 in the direction D1 of movement of the magnet part 200 is a second length L2
• the second length L2 be shorter than the first length L1.
• the first distance I1 be equal to or greater than the first length L1.
• Figure 7 is a diagram showing typical magnetic field lines M when the first magnetic collection surface 110a of the magnetic body 110 of the power generation element unit 100 faces the first magnetized surface 210a of the first magnet 210 (i.e., the state of Figure 1).
• Figure 8 is a diagram showing typical magnetic field lines M when the first magnetic collection surface 110a of the magnetic body 110 of the power generation element unit 100 faces the second magnetized surface 220a of the second magnet 220 (i.e., the state of Figure 2).
• 251 and 252 indicate the magnetization directions.
• the first magnetized surface 210a of the first magnet 210 is flat, and the first magnetic collection surface 110a of the magnetic body 110 is also flat, with the flat surfaces facing each other.
• magnetic field lines M are emitted from the entire first magnetized surface 210a of the first magnet 210, which faces the first magnetic collection surface 110a of the power generation element section 100, and most of these magnetic field lines M are collected in the magnetic core 111 from the first magnetic collection surface 110a of the magnetic body 110, via the magnetic collection body (soft magnetic material) 112.
• the second magnetized surface 220a of the second magnet 220 is flat, and the first magnetic collection surface 110a of the magnetic body 110 is also flat, with the flat surfaces facing each other.
• magnetic field lines M are formed toward the entire second magnetized surface 220a of the second magnet 220, which faces the first magnetic collection surface 110a of the power generation element section 100.
• the first magnetized surface 210a of the first magnet 210 and the first magnetized surface 110a of the magnetic body 110 are flat surfaces, and in the first state (FIGS. 1 and 7), the flat surfaces are positioned opposite each other.
• the second magnetized surface 220a of the second magnet 220 and the first magnetized surface 110a of the magnetic body 110 are flat surfaces, and in the second state (FIGS. 2 and 8), the flat surfaces are positioned opposite each other. Therefore, magnetic field lines M are emitted from or toward the entire first magnetized surface 210a of the first magnet 210 of the magnet section 200 facing the power generation element section 100, resulting in highly efficient power generation.
• the magnetic body 110 collects magnetic field lines from the first magnetic field collecting surface 110a via the magnetic field collecting body (soft magnetic body) 112 to the magnetic core 111, which generates a large Barkhausen effect, making it possible to generate electricity with high power generation efficiency.
• the gap I1 between the first magnet 210 and the second magnet 220 is narrow and the magnetic body 110 of the power generating element unit 100 straddles the first magnet 210 and the second magnet 220, the upward magnetic field lines of the first magnet 210 and the downward magnetic field lines of the second magnet 220 will cancel each other out, slowing down the change in magnetic flux within the magnetic core 111. If the gap I1 between the first magnet 210 and the second magnet 220 is set to be equal to or greater than the width of the first magnetic field collecting surface 110a, the first magnetic field collecting surface will no longer straddle the first magnet 210 and the second magnet 220, allowing for greater change in magnetic flux within the magnetic core 111.
• FIG. 9 is a graph showing the relationship between the position [mm] in the direction of movement (X direction) of the first magnet 210 (or the second magnet 220) and the magnetic flux density [mT] at a position spaced a gap G from the first magnetized surface 210a of the first magnet 210 (or the second magnetized surface 220a of the second magnet 220).
• Figure 9 also shows the magnetic flux density [mT] when the gap G, which is the distance from the first magnetic collecting surface 110a of the magnetic body 110 of the power generating element section 100, is 0.5 mm, 1 mm, and 2 mm. As can be seen from Figure 9, the narrower the gap G, the greater the magnetic force acting on the magnetic core 111, resulting in a greater power generation effect.
• the magnetic flux density is at its highest when gap G is 0.5 mm; however, because a magnetic attraction force acts between first magnetized surface 210a of first magnet 210 and first magnetization surface 110a of magnetic body 110 (and between second magnetized surface 220a of second magnet 220 and first magnetization surface 110a of magnetic body 110), the minimum gap G that can actually be assembled is 1 mm or more.
• Figure 9 shows that the magnetic flux density [mT] at a position spaced apart in the thickness direction (Y direction) from the first magnet 210 (or second magnet 220) by the gap G has two peaks on the positive side of the magnetic flux density.
• the gap G is 1 mm
• the distance between the two peaks of the waveform in the direction of movement (horizontal axis) is approximately 6 mm, so the width of the magnetic collecting surface (first magnetic collecting surface 110a in Figure 1) of the most efficient magnetic body 110 is 6 mm.
• first magnetic collecting surface 110a in Figure 1 In order to obtain even more magnetic force when the gap G is 1 mm, for example, by installing a magnetic body 110 with a magnetic collecting surface (first magnetic collecting surface 110a in Figure 1) with a width of approximately 8 mm, it is possible to induce even more magnetic lines of force M to the magnetic core 111. It is possible to induce approximately 90% of the magnetic flux of the magnet unit 200 to the magnetic core 111.
• the power generation module 10 at least two magnets are required: a first magnet 210 and a second magnet 220. From the perspective of improving power generation efficiency, a narrower gap I1 between the first magnet 210 and the second magnet 220 is desirable. Air or a non-magnetic material is provided in this gap. Furthermore, if the length L2, which is the width in the direction D1 ( ⁇ X directions) of movement of the magnetic body 110, is wide, the installation gap I1 must be correspondingly wider. Therefore, exceeding the most efficient width (6 mm) is disadvantageous in terms of magnet spacing.
• the width (length L2) of the first magnetic collection surface 110a of the magnetic body 110 be within the range of 60 to 80% of the width (length L1) of each of the first magnet 210 and the second magnet 220.
• FIG. 10 is a block diagram showing the configuration of a power generation device 50 including a power generation module 10 according to embodiment 1.
• the power generation module 10 includes a power generation element section 100 and a magnet section 200. Displacement of the magnet section 200 relative to the power generation element section 100 (linear movement in the ⁇ X direction in embodiment 1) generates a voltage in the coil 120.
• the voltage generated in the coil 120 i.e., the power generation pulse
• a rectifier 51 is provided for each power generation element section 100 constituting the power generation module 10. Therefore, if the power generation module 10 has multiple power generation element sections 100, multiple rectifiers 51 are provided corresponding to the multiple power generation element sections 100, respectively.
• the rectifier 51 may have a half-wave rectifier circuit rather than a full-wave rectifier circuit.
• the voltage rectified by one or more rectifiers 51 (i.e., the power of the power generation pulses output from one or more rectifiers 51) is stored in the power storage unit 52.
• the power storage unit 52 is a rechargeable secondary battery, a capacitor, or the like.
• Figure 11 shows the induced voltage waveform (dashed line) when only an iron core is used as the magnetic body 110 of the power generating element section 100, and the induced voltage waveform (solid line) when only composite magnetic wire that generates the Large Barkhausen effect is used as the magnetic body.
• the induced voltage waveform (dashed line) generated in a coil wound around a magnetic body consisting only of an iron core without the Large Barkhausen effect has a wide pulse width and a large amount of generated charge, but a low peak voltage of around 5V.
• the induced voltage waveform (solid line) generated in a coil wound around a magnetic body consisting only of composite magnetic wire that generates the Large Barkhausen effect has a narrow pulse width of 80 ⁇ s or less and a small amount of generated charge, but a high peak voltage of 15V to 20V.
• FIG. 12 shows the waveform of an induced voltage when the magnetic body 110 has a composite magnetic wire as a magnetic core and a soft magnetic body as a magnetic collector (iron core).
• FIG. 12 shows the waveform of the voltage generated in the coil 120 by the voltage due to electromagnetic induction (dashed line in FIG. 11) and the voltage due to the large Barkhausen effect (solid line in FIG. 11) in the power generation module according to embodiment 1.
• a high voltage of approximately 20V to 25V can be obtained by superimposing a voltage waveform due to the large Barkhausen effect, which has a significant peak voltage, on a voltage waveform with a large amount of charge due to electromagnetic induction. Efficient charging of a capacitor requires both a large potential difference and a large amount of charge.
• the power generation module according to embodiment 1, which can generate an induced voltage with the waveform shown in FIG. 12, is particularly suitable for charging capacitors.
• At least one of the power generation element section 100 and the magnet section 200 is installed so that it can move along the guide member 300, and the power generation element section 100 and the magnet section 200 are installed so that, during this movement, a first state exists in which the first magnetization surface 110a and the first magnetized surface 210a face each other, and a second state exists in which the first magnetization surface 110a and the second magnetized surface 220a face each other.
• the magnetic flux of the first magnet 210 and the magnetic flux of the second magnet 220 can be efficiently introduced into the magnetic body 110, thereby improving power generation efficiency.
• the amount of charge is small, but it is suitable for charging a capacitor.
• the magnetic field lines can be collected from the first magnetic collector surface 110a via the magnetic collector 112 to the magnetic core 111 that generates the large Barkhausen effect, resulting in the effects of being able to generate electricity with high power generation efficiency and being suitable for charging a capacitor.
• the magnetic core is made of a soft magnetic material such as an iron core
• the magnetic collector and magnetic core can be integrated using the same material.
• the winding process of the coil 120 can be automated, enabling cost reductions in terms of both materials and labor.
• the magnet unit 200 has been described as having a first magnet 210 and a second magnet 220.
• the number of magnets included in the magnet unit may be three or more.
• the magnet unit has four magnets.
• Figure 13 is a perspective view that schematically shows the configuration of the power generation module 20 according to embodiment 2 (when the first magnetic collecting surface 110a of the magnetic body 110 of the power generation element section 100 faces the first magnetized surface 210a of the first magnet 210).
• the power generation module 20 has the power generation element section 100 and a magnet section 200a.
• the power generation element section 100 and the magnet section 200a are arranged so that their relative positions can be changed.
• the structure of the power generation element unit 100 is the same as that of embodiment 1.
• the magnet unit 200a has a first set (pair) of a first magnet 210 having a first magnetized surface 210a of a first polarity and a second magnet 220 having a second magnetized surface 220a of a second polarity, as well as a second set (pair) of a magnet 211 having a magnetized surface 211a of a first polarity (having the same structure as the first magnet 210 and positioned in the same location) and a magnet 221 having a magnetized surface 221a of a second polarity (having the same structure as the second magnet 220 and positioned in the same location).
• the first and second sets (pairs) have the same structure, are aligned in a straight line, and the distance between the first and second sets (pairs) is the same as the distance I1 described in embodiment 1.
• Figure 13 shows an example in which four magnets are arranged linearly in the X direction, but it is also possible to arrange them in a curved line and move the power generating element unit 100 parallel to the curved line.
• At least one of the power generating element unit 100 and the magnet unit 200a is supported by the guide member 300 so as to be able to move (i.e., displace) along the guide member 300.
• the magnet unit 200a is supported by the guide member 300, but the power generating element unit 100 may also be supported by the guide member 300.
• the guide member 300 is the same as that in embodiment 1.
• the power generation module 20 is configured so that, during the movement of the magnet section 200a, the following states alternate: a first state in which the first magnetic collecting surface 110a of the magnetic body 110 faces the first magnetized surface 210a of the first magnet 210; a second state in which the first magnetic collecting surface 110a of the magnetic body 110 faces the second magnetized surface 220a of the second magnet 220; a first state in which the first magnetic collecting surface 110a faces the magnetized surface 211a of the magnet 211; and a second state in which the first magnetic collecting surface 110a faces the magnetized surface 221a of the magnet 221.
• the power generation module 20 has the effect of efficiently introducing magnetic flux into the magnetic body 110, thereby improving power generation efficiency.
• the amount of charge is small, but it is suitable for charging a capacitor.
• a composite magnetic wire that generates the large Barkhausen effect is used as the magnetic core 111 and a soft magnetic material that surrounds the magnetic core 111 is used as the magnetic collector 112, it is possible to obtain the effects of generating electricity with high power generation efficiency and being suitable for charging a capacitor.
• embodiment 2 is the same as embodiment 1.
• the magnets of the magnet section 200 are described as being arranged on one side of the power generating element section 100. In the third embodiment, the magnets of the magnet section are described as being arranged on both sides of the power generating element section 100.
• Figure 14 is a perspective view that schematically shows the configuration of the power generation module 30 according to embodiment 3 (when the first magnetization surface 110a of the power generation element section 100 faces the first magnetized surface 210a of the first magnet 210, and the second magnetization surface 110b faces the third magnetized surface 230a of the third magnet 230).
• Figure 15 is a perspective view that schematically shows the configuration of the power generation module 30 (when the first magnetization surface 110a of the power generation element section 100 faces the second magnetized surface 220a of the second magnet 220, and the second magnetization surface 110b faces the fourth magnetized surface 240a of the fourth magnet 240).
• the power generation module 30 according to the third embodiment differs from the power generation module 10 according to the first embodiment in that the magnet section 200b further includes a third magnet 230 having a third magnetized surface 230a of the second polarity and a fourth magnet 240 having a fourth magnetized surface 240a of the first polarity; in that in the first state (FIG. 14), the first magnetized surface 110a and the first magnetized surface 210a face each other and the second magnetized surface 110b and the third magnetized surface 230a face each other; and in the second state (FIG. 15), the first magnetized surface 110a and the second magnetized surface 220a face each other and the second magnetized surface 110b and the fourth magnetized surface 240a face each other.
• the normal to the first magnetized surface 210a and the normal to the second magnetized surface 220a extend in the same first direction (+Y direction), and the normal to the third magnetized surface 230a and the normal to the fourth magnetized surface 240a extend in a second direction (-Y direction) opposite to the first direction.
• the magnet section 200b further includes a first magnetic yoke 250 connecting the first magnet 210 and the third magnet 230, and a second magnetic yoke 260 connecting the second magnet 220 and the fourth magnet 240.
• the length of each of the first magnetized surface 210a, the second magnetized surface 220a, the third magnetized surface 230a, and the fourth magnetized surface 240a in the direction of movement D1 is a first length L1
• the length of each of the first magnetized surface 110a and the second magnetized surface 110b in the direction of movement D1 is a second length L2
• the length of each of the first magnetized surface 210a, the second magnetized surface 220a, the third magnetized surface 230a, and the fourth magnetized surface 240a in the direction of movement D1 is a first length L1
• first length L1 when the first magnet 210 and the second magnet 220 are arranged with a first distance I1 in the direction of movement D1
• third magnet 230 and the fourth magnet 240 when the third magnet 230 and the fourth magnet 240 are arranged with a first distance I1 in the direction of movement D1, it is desirable that the first distance I1 be equal to or greater than the first length L1.
• the power generation module 30 can efficiently introduce magnetic flux into the magnetic body 110, thereby improving power generation efficiency.
• the magnetic core 111 when a composite magnetic wire that generates the large Barkhausen effect is used as the magnetic core 111, the amount of charge is small, but it has the effect of being suitable for charging a capacitor. Furthermore, when a magnetic collector 112 and magnetic core 111 are provided, it has the effect of being able to generate electricity with high power generation efficiency and is suitable for charging a capacitor.
• embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, embodiment 3 is the same as embodiment 1 or 2. Furthermore, the number of magnets aligned in the X direction may be three or more.
• FIG. 16(A) is a perspective view schematically showing the configuration of a power generation module 40 according to embodiment 4, and Fig. 16(B) is a perspective view schematically showing the internal configuration of the power generation module 40.
• the power generation module 40 according to embodiment 4 has a rotor 410 supported rotatably about a central axis 411, and a stator 420.
• the rotor 410 has an inner base 430, one or more first magnets 431 and one or more second magnets 432 arranged on the outer peripheral surface of the inner base 430, an outer base 440, and one or more third magnets 441 and one or more fourth magnets 442 arranged on the inner peripheral surface of the outer base 440.
• the first magnets 431 of the inner base 430 have their north poles facing outward, and the second magnets 432 have their south poles facing outward.
• the first magnets 431 and second magnets 432 are alternately arranged around the circumferential direction of the inner base 430 at central angles of 30° (equidistant angular intervals).
• first magnetized surface (north pole) of the first magnet 431 and the second magnetized surface (south pole) of the second magnet 432 face outward, which is the opposite direction (third direction) toward the center of the same circle.
• first magnetized surface and the second magnetized surface face outward relative to the central axis.
• the third magnet 441 and the fourth magnet 442 are alternately arranged at 30° central angle intervals (equidistant intervals) around the circumferential direction of the outer base 440.
• the third magnetized surface (south pole) of the third magnet 441 and the fourth magnetized surface (south pole) of the fourth magnet 442 face inward, which is a direction toward the center of the same circle (fourth direction).
• the third magnetized surface and the fourth magnetized surface face inward relative to the central axis.
• the guide member is the central axis 411, and movement along the guide member is movement in the circumferential direction of the rotor 410 (i.e., the rotor outer circumferential circle).
• first magnetized surface (north pole) of the first magnet 431 and the third magnetized surface (south pole) of the third magnet 441 face each other across the space in which the power generation element unit 100 is placed
• second magnetized surface (south pole) of the second magnet 432 and the fourth magnetized surface (north pole) of the fourth magnet 441 face each other across the space in which the power generation element unit 100 is placed.
• the stator 420 has one or more power generating element units 100 arranged on the same arc centered on the central axis 411 of the rotor 410.
• multiple (12) power generating element units 100 are arranged alternately at central angles of 30° (at equal angular intervals).
• the power generation module 40 according to embodiment 4 like embodiments 1 to 3, has the effect of efficiently introducing magnetic flux into the magnetic body 110, thereby improving power generation efficiency.
• the magnetic core 111 when a composite magnetic wire that generates the large Barkhausen effect is used as the magnetic core 111, the amount of charge is small, but it has the effect of being suitable for charging a capacitor. Furthermore, when a magnetic collector 112 and magnetic core 111 are provided, it has the effect of being able to generate electricity with high power generation efficiency and is suitable for charging a capacitor.
• embodiment 4 is the same as any of embodiments 1 to 3.
• Power generation module 50 Power generation device, 51 Rectifier, 52 Power storage unit, 100 Power generation element unit, 110 Magnetic material, 110a First magnetic collecting surface, 110b Second magnetic collecting surface, 120 Coil, 200, 200a, 200b Magnet unit, 210, 431 First magnet, 210a First magnetized surface, 220, 432 Second No. 2 magnet, 220a second magnetized surface, 230, 441 third magnet, 230a third magnetized surface, 240, 442 fourth magnet, 240a fourth magnetized surface, 300 guide member, 410 rotor, 411 central axis, 420 stator, D1 direction of movement (direction of displacement), L1 first length, L2 second length, I1 first interval.

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  • 2024-01-22 JP JP2025514404A patent/JPWO2025158493A1/ja active Pending
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