CN201167272Y - multi-layer power generation device - Google Patents

Abstract

The utility model discloses a multi-layer power generation device, which is driven by the rotation of a wheel and converts mechanical kinetic energy into electrical energy. The multi-layer power generation device includes a setting seat, a plurality of stator units arranged on the setting seat and having a plurality of silicon steel sheets, and a rotor unit arranged on the setting seat and capable of rotating around the stator unit. The utility model utilizes a plurality of stator units, so that the back electromotive force generated between the stator units and the magnet ring can form several times of current output, and the position difference between the silicon steel sheets on two adjacent stator units can make the magnetic field induced by them form a staggered shape and offset the ripples in the output current, thereby reducing the magnetic inertia force generated between the stator unit and the corresponding magnet ring when the magnetic field is transformed, and improving the sense of frustration generated by the rotor unit when rotating.

Description

multi-layer power generation device

technical field

The utility model relates to a power generating device, in particular to a multi-layer power generating device.

Background technique

As shown in Figures 1 and 2, it is an existing wheel shaft power generation device, which is to cooperate with a wheel 100 of a bicycle to generate power, and includes: a wheel shaft 11 that provides the wheel 100 to pivot and rotate, and is set on The fixed part 12 on the wheel shaft 11 that does not rotate with the wheel shaft 11, a plurality of stator units 13 sleeved on the outside of the fixed part 12, and a shell seat fixed on the wheel 100 and surrounding the stator unit 13 14. Each stator unit 13 has a stator base 131 disposed on the fixing member 12, an induction coil 132 wound on the stator base 131, and two pole pieces 133 respectively disposed on opposite sides of the stator base 131 . A plurality of magnet rings 141 are disposed on the inner surface of the housing base 14 , and the magnet rings 141 are located on the outer side of the corresponding stator unit 13 .

When the wheel 100 rotates, the housing 14 connected to it will also drive the magnet ring 141 to rotate around the stator unit 13, but the fixing member 12 that is located in the housing 14 and is equipped with the stator unit 13 does not Therefore, the magnetic field generated by the moving magnet ring 141 will cooperate with the relatively stationary stator unit 13 to generate a back electromotive force, and then form a current in the induction coil 132 of the stator unit 13 and pass through A wire 200 is output.

This axle power generation device is to reach the current output of several times by a plurality of stator units 13, but, as can be clearly seen from Fig. Therefore, the generated magnetic field is also in the same direction and added to become a magnetic field with several times the intensity. Although this design method can effectively add the magnetic field generated by the stator unit 13 itself, and thereby make it compatible with the The magnetic field induction between the above-mentioned magnet rings 141 is bigger and obtains the current output of several times, but, because each magnet ring 141 all has two kinds of polarities (south pole and north pole), when this magnet ring 141 is relative to this stator unit 13 rotates, and when the polarity is changed (for example, between the south pole and the north pole), a magnetic inertial force will be generated between the magnetic field of the stator unit 13 itself, which will cause the frustration feeling when the housing base 14 rotates , and this phenomenon is more serious because the magnetic poles of the stator unit 13 are in the same direction (several times the magnetic field strength), which makes the frustration feeling when the shell base 14 rotates more obvious, and then makes the rider of the bicycle It takes more force to overcome this magnetic inertial force, which obviously creates an additional burden on the rider.

In addition, since the above-mentioned wheel shaft power generation device adopts the configuration mode of an axial motor, each pole induction coil 132 on each stator unit 13 must be wound on the same stator seat 131, except for the number of winding turns (the relative influence is The amount of current generated) will be limited by this, and it will also cause the instability of the polarity switching during the overall operation, and this phenomenon is also one of the reasons for the frustration during operation.

Moreover, although the above-mentioned axle power generator uses a plurality of stator units 13 to increase the current output by several times, as mentioned above, using a plurality of stator units 13 arranged in the same magnetic pole direction in the current produced Ripple noise will also add up, making the output current unstable, and thus unable to provide stable power to external electronic devices.

Contents of the invention

The purpose of this utility model is to provide a multi-layer power generation device that can generate a stable output of several times the current and effectively reduce the frustration during rotation.

In order to achieve the above purpose, the utility model multi-layer power generation device is driven by the rotation of a wheel, and converts mechanical kinetic energy into electrical energy. The multi-layer power generation device includes: a setting seat, a plurality of stator units, and a Rotor unit.

The setting seat has a base and a shaft tube extending vertically from the base.

Each stator unit has two stator frames that are sheathed on the shaft tube of the setting seat at intervals, an induction coil wound on the stator frames, and a plurality of stacked and interposed between the stator frames. , and cooperatingly define the silicon steel sheets of an induction surface, the silicon steel sheets of any stator unit and the silicon steel sheets of the adjacent stator unit are in a staggered arrangement in the axial direction, so that all the silicon steel sheets on the two adjacent stator units A potential difference is formed between the sensing surfaces.

The rotor unit rotates through contact with the wheel, and has a rotating member, a rotating shaft that penetrates and is fixed to the rotating member, and a plurality of magnet rings arranged on the inner wall surface of the rotating member , the rotating shaft is rotatably inserted in the shaft tube around its own axis, the rotating member surrounds the stator unit, and the magnet rings located on the inner wall of the rotating member are respectively located on the corresponding stator unit The relative outer side of the sensing surface.

The effect of the utility model is to utilize multiple stator units, so that it can form several times the current output due to the counter electromotive force generated between the magnet rings, and the induction of the silicon steel sheets on the two adjacent stator units The potential difference between the surfaces will cause the induced magnetic field to form a staggered shape and offset the ripple generated by the output current, thereby reducing the magnetic field change between the stator unit and the corresponding magnet ring. The generated magnetic inertial force effectively improves the frustration feeling of the rotor unit when it rotates.

Description of drawings

Fig. 1 is a three-dimensional exploded view illustrating the disassembled state of each component of a conventional axle power generating device.

Fig. 2 is a cross-sectional view illustrating the combination of the axle power generating device in Fig. 1 with a wheel and a vehicle frame.

Fig. 3 is a perspective view illustrating the installation seat and the stator unit of the preferred embodiment of the multi-layer power generation device of the present invention.

Fig. 4 is a perspective view illustrating the assembled appearance of the preferred embodiment.

Fig. 5 is a cross-sectional view illustrating the assembled internal form of the preferred embodiment.

Detailed ways

The multi-layer power generation device of the present utility model will be described in detail below through preferred embodiments and accompanying drawings.

As shown in Figure 3, the first preferred embodiment of the multi-layer power generation device of the present invention is driven by the rotation of a bicycle front wheel (not shown), and converts mechanical kinetic energy into electrical energy for other electronic equipment In use, the multi-layer power generation device includes: a setting base 2, two stator units 3, and a rotor unit 4 (shown in FIG. 4 ).

The installation seat 2 has a base 21 and a shaft tube 22 vertically extending from the base 21 .

Each stator unit 3 has two stator frames 31 that are sheathed on the shaft tube 22 of the installation base 2 at intervals, an induction coil 32 wound on the stator frame 31, and a plurality of stacked and sandwiched Between the stator frames 31, the silicon steel sheet 33 (such as the stator form of a radial motor) that cooperates to define an induction surface 331, in this embodiment, each stator unit has four sets of spaced apart stacked The silicon steel sheets 33 of any stator unit 3 and the silicon steel sheets 33 of its adjacent stator unit 3 are in a staggered arrangement in the axial direction, so that the induction surfaces 331 on the adjacent two stator units 3 A potential difference of 45 degrees is formed between them. In this embodiment, each stator frame 31 also extends four coil winding areas for fixing its corresponding stacked silicon steel sheets 33, and for the induction coils 32 to be respectively positioned in the corresponding winding areas relative to the coil winding areas. The shaft tube 22 is wound radially.

In this embodiment, the current output is designed to be about double (compared with the use of a single stator unit), so the configuration of double-layer (two) stator units 3 is adopted, but attention should be paid The most important thing is that all motor components will have unavoidable power loss during actual implementation. Therefore, "double" current output is only feasible in theory, and it is impossible to achieve double current output in actual implementation. But the following is still an example of double or triple.

As mentioned above, there is a potential difference of 45 degrees between the sensing surfaces 331 formed by the silicon steel sheets 33 on the two stator units 3. However, the number of the stator units 3 can also vary depending on the current output. The demand changes, for example, three times the current output needs to adopt the configuration mode of three-layer (three) stator units 3, and when using the configuration mode of three stator units 3, the silicon steel on the three stator units 3 The potential difference between the sensing surfaces 331 of the sheet 33 can be adjusted to 30 degrees, and the configuration of other multiples can be deduced by analogy.

As shown in Figures 4 and 5, the rotor unit 4 is rotated through contact with the wheel, and has a cylindrical rotating member 41, a rotating shaft 42 extending through and fixed to the rotating member 41 , and two magnet rings 43 arranged on the inner wall surface of the rotating member 41, the rotating shaft 42 is rotatably inserted in the shaft tube 22 around its own axis, the rotating member 41 surrounds the stator unit 3, and is located at The magnet rings 43 on the inner wall surface of the rotating member 41 are respectively located on the outer side of the corresponding induction surface 331 of the stator unit 3 . The open end of the rotating shaft 42 is in contact with the front wheel (not shown) of the bicycle, and the rotating shaft can be driven by the rotation of the front wheel and the friction between the front wheel and the open end of the rotating shaft 42 42 drives the rotating member 41 to rotate around its own axis. In this embodiment, the open end of the rotating shaft 42 is coated with a contact member 421 , thereby increasing the frictional force between the open end of the rotating shaft 42 and the front wheel.

In this embodiment, it also includes a spring 5 set on the rotating shaft 42 of the rotor unit 4. The two opposite ends of the spring 5 are respectively pressed against the end surface of the shaft tube 22 of the installation seat 2 and the rotating member. 41 surrounds the end surface of the rotating shaft 42, thereby forming a buffer between the rotor unit 4 and the shaft tube 22 of the seat 2, and at the same time, the vibration (and slight inclination) of the rotating member 41 due to the rotational inertia can also be It is absorbed by the elasticity of the spring 5, thereby providing the shock absorbing function.

When the bicycle is moving, the rotation of its front wheel will drive the rotating shaft 42 to rotate around its own axis through the contact piece 421 of the rotor unit 4 in contact with the front wheel, and thereby drive the rotating piece 41 to rotate around its own axis. axis rotates, at this time, the magnetic field of the magnet ring 43 located on the inner wall of the rotating member 41 will induce each other with the corresponding induction coil 32 on the stator unit 3, and form a counter electromotive force to A current is generated on the induction coil 32 , and the generated current can be exported through wires for use by external electronic equipment (such as a car light).

It should be noted here that, since this embodiment adopts the design of the double-layer stator unit 3, compared with a motor with only one stator unit 3, it can generate about double the current output. However, because in this embodiment In the embodiment, a 45-degree potential difference is formed between the sensing surfaces 331 of the silicon steel sheets 33 of the adjacent stator units 3. Therefore, the magnetic fields of the magnet ring 42 induced by the two stator units 3 themselves will form two The staggered magnetic field makes the magnet ring 43 that rotates around the stator unit 3 receive less magnetic inertial force in the opposite direction when the magnetic field is converted. In contrast, the rotating member 41 that carries the magnet ring 43 rotates is rotating The feeling of frustration during riding is also small, so that the rider needs to spend less power to drive the rotor unit 4 when riding, so that no additional burden will be caused; moreover, because the two stators The magnetic field of the magnet ring 42 induced by the unit 3 itself will form two interlaced magnetic fields, so the ripples generated by the output current can be effectively offset, and then a stable current output of several times can be generated.

In addition, the utility model drives the rotor unit 4 to rotate through the friction with the front wheel, instead of fixing each component on the front wheel as in the existing axle power generation device, this kind of rotor unit 4 with contact The advantage of the multi-layer power generation device is that the multi-layer power generation device can be installed on the frame of the bicycle with a movable mount (not shown), and the multi-layer power generation device does not need to be used when riding the bicycle. When the power generation unit is used, it is only necessary to move the rotor unit 4 to a position where it will not be in contact with the front wheel, and it is not necessary to disassemble the overall structure from the front wheel as in the existing axle power generation device. Therefore, The utility model has considerable advantages in practicality and ease of use.

To sum up the above, the multi-layer power generation device of the present utility model utilizes a plurality of stator units 3, so that it can form several times the current output due to the counter electromotive force generated between the corresponding magnet rings 43, and the two-phase The potential difference between the sensing surfaces 331 of the silicon steel sheet 33 on the adjacent stator unit 3 will cause the induced magnetic field to form a staggered shape and offset the ripple generated by the output current, thereby reducing the stator unit 3 The magnetic inertial force generated between the corresponding magnet rings 43 when the magnetic field changes can effectively improve the frustration feeling of the rotor unit 4 when rotating, so the purpose of the present utility model can indeed be achieved.

Claims (4)

1. A multi-layer power generation device, which is driven in conjunction with the rotation of a wheel, and converts mechanical kinetic energy into electrical energy. The multi-layer power generation device includes a setting seat, a plurality of stator units arranged on the setting seat, and a rotor unit that rotates through contact with the wheel, the setting seat has a base, and a shaft tube extending vertically from the base, and each stator unit has two spaced sleeves on the setting The stator frame on the shaft tube of the seat, an induction coil wound on the stator frame, and a plurality of silicon steel sheets stacked and sandwiched between the stator frames and cooperatively defining an induction surface, the The rotor unit has a rotating part surrounding the stator unit, a rotating shaft that penetrates and is fixedly connected to the rotating part and is inserted into the shaft tube so as to be rotatable around its own axis, and a plurality of inner wall surfaces of the rotating part The magnet rings, and the magnet rings are respectively located on the relative outer side of the corresponding induction surface of the stator unit, characterized in that: The silicon steel sheets of any stator unit and the silicon steel sheets of its adjacent stator units are staggered in the axial direction, so that a potential difference is formed between the sensing surfaces of two adjacent stator units. 2. The multi-layer power generation device according to claim 1, characterized in that: the number of magnet rings of the stator unit and the rotor unit is two respectively, and a 45 degree of bit difference. 3. The multi-layer power generation device according to claim 2, characterized in that: the induction coil on the stator frame of each stator unit is wound radially with respect to the shaft tube of the installation seat. 4. The multi-layer power generation device according to claim 1, 2 or 3, characterized in that: the multi-layer power generation device further comprises a set of springs arranged on the rotating shaft of the rotor unit, and the two opposite ends of the spring are respectively The shaft tube against the setting seat and the end surface of the rotating member surrounding the rotating shaft.

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