Power generation device

Abstract

The invention relates to a power generation device which comprises a shell base used for being fixedly installed on a rotatable object, a rotor module coaxial with a horizontal axis and fixedly installed on the shell base, and a stator module capable of rotating around the horizontal axis relative to the shell base and installed on the shell base. And the counterweight module is fixedly arranged on the stator module, and the gravity center of the counterweight module is positioned below the horizontal axis. When the rotor module is driven by the object to rotate, the rotor module can rotate relative to the stator module driven by the vertical pendulum gravity of the counterweight module, one of the rotor module and the stator module can generate a magnetic field, and the other one of the rotor module and the stator module can induce magnetism to generate power. Through the structural design of the rotor module, the stator module and the counterweight module, the power generation device can be installed on a rotating object, and rotation kinetic energy of the object is converted into electric energy.

Description

Technical Field

[0001] The present invention relates to a power generation device, and particularly to a power generation device for being mounted on a rotating object. Background Art

[0002] Energy conservation and carbon reduction are policies vigorously promoted by countries around the world. In addition to achieving carbon reduction through energy conservation and using natural energy to generate electricity, another key development focus is how to convert the kinetic energy of a moving object into electrical energy for recycling, such as converting the rotational kinetic energy of vehicle wheels during driving into electrical energy. Summary of the Invention

[0003] The purpose of the present invention is to provide a power generation device that can be used to convert the rotational kinetic energy of a rotating object into electrical energy for reuse.

[0004] The power generation device of the present invention is suitable for being mounted on a rotating object. The power generation device includes a housing base for being fixedly mounted on the object, a rotor module coaxially mounted and fixed on the housing base with a horizontal axis, a stator module rotatably mounted on the housing base relative to the horizontal axis, and a counterweight module fixedly mounted on the stator module and having a center of gravity below the horizontal axis.

[0005] When the rotor module is driven to rotate by the object, it will rotate relative to the stator module driven by the pendulum gravity of the counterweight module. One of the rotor module and the stator module can generate a magnetic field required for magnetic induction power generation, and the other of the rotor module and the stator module can induce the magnetic field to generate electricity.

[0006] For the power generation device of the present invention, the rotor module is a coil assembly capable of magnetic induction power generation. The stator module includes a rotating shaft extending along the horizontal axis and rotatably mounted on the housing base, and a plurality of magnets arranged around the horizontal axis on the rotating shaft and capable of generating the magnetic field. The counterweight module is mounted on the rotating shaft.

[0007] For the power generation device of the present invention, the magnets of the stator module are arranged on the outer peripheral surface of the rotating shaft and are spaced radially inside the rotor module.

[0008] For the power generation device of the present invention, the magnets of the stator module are spaced axially on the side of the rotor module.

[0009] For the power generation device of the present invention, the rotor module has a plurality of magnets that are arranged around the horizontal axis, mounted and fixed on the housing base, and can generate the magnetic field. The stator module includes a rotating shaft that extends along the horizontal axis and is coaxially mounted on the housing base in a relatively rotatable manner, and a coil assembly that is sleeved outside the rotating shaft and can generate electricity by sensing magnetism. The counterweight module is mounted on the rotating shaft.

[0010] For the power generation device of the present invention, the magnets of the rotor module are located radially outside the coil assembly.

[0011] For the power generation device of the present invention, the magnets of the rotor module are located axially on the side of the coil assembly.

[0012] For the power generation device of the present invention, the housing base includes a seat body with a lateral opening and a side cover that is mounted on the seat body and seals the lateral opening. The side cover and the seat body cooperate to define an installation space for the rotor module and the stator module, and the rotating shaft is rotatably mounted between the seat body and the side cover.

[0013] For the power generation device of the present invention, the rotating shaft has an installation end that protrudes outside the side cover, and the counterweight module is mounted on the installation end and is exposed outside the housing base.

[0014] For the power generation device of the present invention, the counterweight module includes a circular sheet-shaped covering body that is coaxial with the rotating shaft and a counterweight body that is arranged on the covering body and defines the center of gravity. The counterweight module is mounted and fixed on the installation end through the covering body or the counterweight body.

[0015] The beneficial effects of the present invention are as follows: Through the structural design of the rotor module and the stator module mounted on the housing base, and the structural design of the counterweight module mounted on the stator module, the power generation device of the present invention can be installed on the rotating object for use, and can be used to convert the rotational kinetic energy of the object into electrical energy. Description of the Drawings

[0016] Figure 1 is a perspective view showing the structure of a first embodiment of the power generation device of the present invention;

[0017] Figure 2 is an exploded perspective view showing the structure of the first embodiment;

[0018] Figure 3 is a front view with a side cover omitted in the figure;

[0019] Figure 4 is a side sectional view showing the structure of the first embodiment;

[0020] Figure 5 is a front view with a side cover omitted, illustrating the structure of a second embodiment of the power generation device of the present invention;

[0021] Figure 6 is an exploded perspective view, illustrating the structure of a third embodiment of the power generation device of the present invention;

[0022] Figure 7 is a side sectional view, illustrating the structure of this third embodiment; and

[0023] Figure 8 is a side sectional view, illustrating the structure of a fourth embodiment of the power generation device of the present invention. Detailed Embodiment

[0024] Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same reference numerals.

[0025] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a first embodiment of the power generation device 200 of the present invention is adapted to be mounted on a rotatable object (not shown in the figures). The object is, for example but not limited to, the rim of a vehicle.

[0026] The power generation device 200 includes a housing base 3 for mounting and fixing along a horizontal axis 800 on the object, a rotor module 4 mounted and fixed coaxially with the horizontal axis 800 in the housing base 3, a stator module 5 rotatably mounted relative to the housing base 3 about the horizontal axis 800, and a counterweight module 6 mounted and fixed on the stator module 5. In this embodiment, the power generation device 200 is coaxially arranged with the rotation axis of the object along the horizontal axis 800, but this is not necessary during implementation.

[0027] The housing base 3 includes a base body 31 having a lateral opening 310, and a side cover 32 mounted on the base body 31 and closing the lateral opening 310. The base body 31 and the side cover 32 cooperate to define a circular mounting space 30 coaxial with the horizontal axis 800.

[0028] In this first embodiment, the rotor module 4 is an annular coil assembly mounted and fixed on the inner peripheral surface of the base body 31 and capable of generating electricity by magnetic induction. Since the coil assembly can generate electricity by magnetic induction and there are many types in the prior art, it will not be described in detail herein.

[0029] The stator module 5 includes a rotating shaft 51 that extends along the horizontal axis 800 and is rotatably mounted between the base body 31 and the side cover 32, and a plurality of magnets 52 that are arranged at intervals around the horizontal axis 800 and fixedly mounted on the outer peripheral surface of the rotating shaft 51. The rotating shaft 51 is rotatably mounted between the base body 31 and the side cover 32 via two bearings 50, and the rotating shaft 51 has a mounting end 511 that extends outward from the mounting space 30 and passes through the side cover 32. The magnets 52 are located radially inside the rotor module 4 and can generate the magnetic field required for magnetic induction power generation of the rotor module 4.

[0030] The counterweight module 6 is coaxially and fixedly mounted on the mounting end 511 of the rotating shaft 51 and is exposed beside the housing base 3, and the center of gravity of the counterweight module 6 is lower than the horizontal axis 800. The counterweight module 6 includes a counterweight body 61 that is fixedly mounted on the rotating shaft 51 and hangs downwards and defines the center of gravity, and a disc-shaped covering body 62 that is coaxially covered outside the counterweight body 61 with the rotating shaft 51.

[0031] When the first embodiment of the power generation device 200 of the present invention is mounted on the object for use, the housing base 3 will be driven by the rotation of the object, and then drive the rotor module 4 to rotate synchronously around the horizontal axis 800, so that the rotor module 4 rotates relative to the stator module 5 that is affected by the pendulum gravity of the counterweight module 6, and induces the magnetic field of the magnets 52 to generate electricity. During implementation, the rotor module 4 can be electrically connected to a power storage device (not shown in the figure) or a load device (not shown in the figure), and the electric energy generated by the rotor module 4 can be stored in the power storage device, or the electric energy generated by the rotor module 4 can be supplied to the load device.

[0032] Refer to Figure 5 In a second embodiment of the power generation device 200 of the present invention, the difference from the first embodiment lies in: the structural design of the rotor module 4 and the stator module 5. For the convenience of description, only the differences of each embodiment will be described below.

[0033] In this second embodiment, the rotor module 4 includes a plurality of magnets 41 that are arranged around the horizontal axis 800 and fixedly mounted on the inner peripheral surface of the base body 31. The stator module 5 includes the rotating shaft 51 that is rotatably mounted between the base body 31 and the side cover 32, and a coil assembly 53 that is sleeved outside the rotating shaft 51. The magnets 41 are located radially outside the coil assembly 53.

[0034] The usage mode of the second embodiment of the power generation device 200 of the present invention is the same as that of the first embodiment. When the housing base 3 is driven to rotate by the object, it will drive the magnets 41 of the rotor module 4 to rotate relative to the coil assembly 53 of the stator module 5, so that the coil assembly 53 induces the change of the magnetic field of the magnets 41 to generate electricity.

[0035] Refer to Figure 6 and Figure 7 , a difference between a third embodiment of the power generation device 200 of the present invention and the first embodiment lies in: the structural designs of the rotor module 4 and the stator module 5.

[0036] In this third embodiment, the base body 31 has a side wall 311 with a spacing facing the side cover 32. The rotor module 4 is a disc-shaped coil assembly coaxially fixed to the side wall 311. The magnets 52 of the stator module 5 are located on one side of the rotating shaft 51 facing the side wall 311, and are relatively located on the axial side of the rotor module 4.

[0037] When the housing base 3 is driven by the object to rotate, the rotor module 4 will also rotate relative to the magnets 52 of the stator module 5 to generate electricity by magnetic induction.

[0038] Refer to Figure 8 , a difference between a fourth embodiment of the power generation device 200 of the present invention and the third embodiment lies in: the structural designs of the rotor module 4 and the stator module 5.

[0039] In this fourth embodiment, the rotor module 4 includes a plurality of magnets 41 fixed to the side wall 311 at intervals around the horizontal axis 800. The stator module 5 includes the rotating shaft 51 and the disc-shaped coil assembly 53 sleeved and fixed outside the rotating shaft 51. The magnets 41 are located on the axial side of the coil assembly 53.

[0040] With this design, when the housing base 3 is driven by the object to rotate, the magnets 41 of the rotor module 4 will rotate relative to the coil assembly 53 of the stator module 5, causing the coil assembly 53 to generate electricity by magnetic induction.

[0041] In the above-mentioned embodiments, the counterweight module 6 is always vertically pendulum-mounted and fixed to the rotating shaft 51 with the counterweight body 61, and the rotation of the rotating shaft 51 can be restricted by the vertical pendulum gravity of the counterweight body 61. However, in implementation, in another embodiment of the present invention, the counterweight module 6 can also be mounted and fixed to the rotating shaft 51 by the covering body 62, and the counterweight body 61 is eccentrically arranged on the covering body 62, and the rotation of the rotating shaft 51 can also be restricted by the vertical pendulum gravity of the counterweight body 61.

[0042] In summary, through the structural designs of the rotor module 4 and the stator module 5 mounted on the housing base 3, and the structural design of the counterweight module 6 mounted on the stator module 5, when the power generation device 200 of the present invention is used by being mounted on the rotatable object, it can be used to convert the rotational kinetic energy of the object into electrical energy for supplying a load device or charging an energy storage device. Therefore, the power generation device 200 of the present invention is indeed a quite innovative and practical creation, and can indeed achieve the purpose of the present invention.

[0043] The above are only the preferred embodiments of the present invention, but they are not intended to limit the scope of the present invention. Any person skilled in the art can make further improvements and changes based on this without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims of this application.

Claims

1. A power generation device adapted to be installed on a rotatable object, comprising a housing base for fixing and installing on the object, and a rotor module and a stator module installed on the housing base; characterized in that, the rotor module is coaxially installed and fixed on the housing base with respect to the horizontal axis, and the stator module is rotatably installed on the housing base around the horizontal axis with respect to the housing base, the power generation device further includes a counterweight module installed and fixed on the stator module, the center of gravity of the counterweight module is located below the horizontal axis, when the rotor module is driven to rotate by the object, it rotates relative to the stator module driven by the pendulum gravity of the counterweight module, one of the rotor module and the stator module can generate a magnetic field required for magnetic induction power generation, and the other of the rotor module and the stator module can induce the magnetic field to generate electricity.

2. The power generation device according to claim 1, wherein The rotor module is a coil assembly capable of magnetic induction power generation, the stator module includes a rotating shaft extending along the horizontal axis and rotatably installed on the housing base, and a plurality of magnets arranged around the horizontal axis on the rotating shaft and capable of generating the magnetic field, and the counterweight module is installed on the rotating shaft.

3. The power generation device according to claim 2, wherein, The magnets of the stator module are arranged on the outer peripheral surface of the rotating shaft and are spaced radially inside the rotor module.

4. The power generation device according to claim 2, characterized in that The magnets of the stator module are spaced axially of the rotor module.

5. The power generation device according to claim 1, characterized in that The rotor module has a plurality of magnets arranged around the horizontal axis and installed and fixed on the housing base and capable of generating the magnetic field, the stator module includes a rotating shaft extending along the horizontal axis and coaxially and rotatably installed on the housing base, and a coil assembly sleeved outside the rotating shaft and capable of magnetic induction power generation, and the counterweight module is installed on the rotating shaft.

6. The power generation device according to claim 5, characterized in that The magnets of the rotor module are located radially outside the coil assembly.

7. The power generation device according to claim 5, characterized in that, The magnets of the rotor module are located axially of the coil assembly.

8. The power generation device according to any one of claims 2 to 7, characterized in that, The housing base includes a seat body having a lateral opening and a side cover installed on the seat body and covering the lateral opening, the side cover and the seat body cooperate to define an installation space for the rotor module and the stator module, and the rotating shaft is rotatably installed between the seat body and the side cover.

9. The power generation device according to claim 8, characterized in that, The rotating shaft has an installation end protruding outside the side cover, and the counterweight module is installed on the installation end and is exposed outside the housing base.

10. The power generation device according to claim 9, characterized in that, The counterweight module includes a circular sheet-shaped covering body coaxial with the rotating shaft and a counterweight body provided on the covering body and defining the center of gravity, and the counterweight module is installed and fixed on the installation end through the covering body or the counterweight body.

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