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EP-4738665-A1 - ROTARY SELF-POWER GENERATING DEVICE

EP4738665A1EP 4738665 A1EP4738665 A1EP 4738665A1EP-4738665-A1

Abstract

A rotary self-power generating device, comprising: a power generation coil module (1), a magnetic member (2), and a reciprocating rotary assembly (3); wherein the rotary assembly is operatively connected to a drive mechanism; wherein one of the power generation coil module and the magnetic member is mounted on the rotary assembly and is driven by the rotary assembly to undergo relative rotation with respect to the other thereof, thereby changing a magnetic flux within the power generation coil module; wherein output terminals of the power generation coil module are configured for connection to an electrical load. The relative separation between the power generation coil module (1) and the magnetic member (2) allows for adaptation of their relative positions to match a motion of an article, enabling self-power generation and providing sufficient electrical energy for different electrical loads, in contrast to conventional oscillating magnetic core structures.

Inventors

  • NG, CHI CHIU

Assignees

  • Oodles Systems Limited

Dates

Publication Date
20260506
Application Date
20251023

Claims (13)

  1. A rotary self-power generating device, comprising: a power generation coil module (1); a magnetic member (2); and a rotary assembly (3) operatively connected to a drive mechanism; wherein one of the power generation coil module (1) and the magnetic member (2) is mounted on the rotary assembly (3) such that, upon actuation by the drive mechanism, the rotary assembly (3) causes a relative rotational movement between the power generation coil module (1) and the magnetic member (2); wherein said relative rotation is configured to correspondingly induce a change in magnetic flux within the power generation coil module (1) to generate electrical energy in the power generation coil module (1); and wherein output terminals of the power generation coil module (1) are configured for connection to an electrical load to output the generated electrical energy.
  2. The rotary self-power generating device of claim 1, wherein the rotary assembly (3) comprises a rotating member (31) and a fixed member (32), the rotating member (31) is pivotally connected to the fixed member (32) by a rotating shaft, the power generation coil module (1) and the magnetic member (2) are respectively installed on the rotating member (31) and the fixed member (32), and the rotating member (31) is connected to the drive mechanism.
  3. The rotary self-generating device of claim 1, wherein: said power generation coil module (1) is mounted on said rotating member (31); and two magnetic members (2) are disposed radially outward of an outer periphery of said rotating member (31) and at a position corresponding to said power generating coil module (1).
  4. The rotational self-generating device of claim 2, wherein a portion of said power generation coil module (1) extends toward said fixed member (32), and is positioned between two magnetic members (2).
  5. The rotary self-generating device of claim 2, wherein the power generation coil module (1) comprises a magnetic core (11) and a coil winding (12) wound around the magnetic core (11), wherein a portion of the magnetic core (11) extends to the fixing member (32) and is positioned between two magnetic members (2).
  6. The rotary self-generating device of claim 2, wherein: the rotating member (31) comprises a rotating block (33); the rotating block (33) is pivotally connected to the rotating member (31), the rotating member (31) comprises two limiting blocks (34) configured to limit a range of pivotal movement of the rotating block (33); the rotating block (33) is connected to the drive mechanism.
  7. The rotational self-generating device of claim 6, wherein the device is installed on a door and operatively connected to a lock assembly thereof, and wherein the drive mechanism is a latch bolt, a lock cylinder, or a locking bolt of the lock assembly; the rotating member (31) further comprises a reset device; wherein the drive mechanism is arranged to push the rotating block (33) to rotate, and one of limiting blocks (34) is arranged to push the rotating member (31) to drive the power generation coil module (1) to separate from one of magnetic members (2); wherein a change in magnetic flux of the power generation coil module (1) causes the coil winding (12) to generate induced power; and as the power generation coil module (1) approaches another one of magnetic members (2), the magnetic flux of the power generation coil module (1) changes again to cause the coil winding (12) generating induced power; while during the resetting of the drive mechanism, the reset device drives the rotating block (33) to rotate in a reverse direction, and one of the limiting blocks (34) pushes the rotating member (31) to drive the power generation coil module (1) to separate from one of the magnetic members (2); wherein a change in magnetic flux of the power generation coil module (1) causes the coil winding (12) to generate induced power; and as the power generation coil module (1) approaches another one of the magnetic members (2), the magnetic flux of the power generation coil module (1) changes again, inducing the coil winding (12) to generate induced power.
  8. The rotary self-generating device of claim 6, wherein: the device is mounted on a guide rail, the guide rail being provided with a protrusion configured to abut against a rotating block (33), the rotating member (31) is further provided with a reset device; wherein the guide rail slides, inducing the protrusion to push the rotating block (33) to rotate, and one of the limiting blocks (34) pushes the rotating member (31) to drive the power generation coil module (1) to separate from one of the magnetic members (2), thereby the magnetic flux of the power generation coil module (1) changes, inducing power generation in the coil winding (12); while the power generation coil module (1) approaches another one of the magnetic members (2), the magnetic flux of the power generation coil module (1) changes again, inducing power generation in the coil winding (12); while the drive mechanism resets, the reset device drives the rotating block (33) to rotate in a reverse direction, and another one of limiting blocks (34) pushes the rotating member (31) to drive the power generation coil module (1) to separate from the magnetic member (2), thereby the magnetic flux of the power generation coil module (1) changes, inducing power generation in the coil winding (12); while the power generation coil module (1) approaches another one of the magnetic members (2), the magnetic flux of the power generation coil module (1) changes again, inducing power generation in the coil winding (12).
  9. The rotational self-generating device of claim 6, wherein: the device is mounted on a device with a rotating shaft, the rotating shaft is connected to the rotating block (33) and is arranged to drive the rotating block (33) to rotate, and one of the limiting blocks (34) is arranged to push the rotating member (31) to drive the power generation coil module (1) to separate from one of the magnetic members (2), wherein a change in magnetic flux of the power generation coil module (1) induces a coil winding (12) to generate electricity; while the power generation coil module (1) approaches another one of the magnetic members (2), the magnetic flux of the power generation coil module (1) changes again, inducing the coil winding (12) to inductively generate electricity; the rotating shaft is arranged to reversely rotate to drive the rotating block (33) to reversely rotate , and another one of the limiting blocks (34) is arranged to push the rotating member (31) to drive the power generation coil module (1) to separate from the magnetic member (2), wherein a change in magnetic flux of the power generation coil module (1) induces the coil winding (12) to generate electricity; while the power generation coil module (1) approaches another one of the magnetic member (2), the magnetic flux of the power generation coil module (1) changes again, inducing the coil winding (12) to inductively generate electricity.
  10. The rotary self-generating device of claim 9, wherein the rotating shaft is a hinged rotating shaft, and the rotating shaft is connected to the rotating block (33) by a gear transmission device.
  11. The rotary self-generating device of claim 9, wherein the rotating shaft is a rotating shaft of a rotary switch.
  12. The rotatable self-generating device of claim 9, wherein the rotating shaft is coupled to a push-button switch, the coupling between said push-button switch and said rotating shaft being formed by an interengaging rack and a gear.
  13. The rotary self-generating device of claim 9, wherein the rotary shaft is coupled to a pedal assembly.

Description

FIELD OF THE INVENTION The present invention relates to an apparatus capable of self-generating electricity through rotation. BACKGROUND OF THE INVENTION The continuous development and proliferation of the Internet of Things (IoT) in recent years have created a demand for monitoring the status of various objects through the integration of sensors and wirelessly transmitting corresponding status signals. This capability is essential for enabling intelligent linkage and automated control. However, sensors and wireless transmission components require a power source to operate. A relatively common conventional method for providing such power is the integration of batteries. Nonetheless, batteries are susceptible to depletion, necessitating periodic maintenance by personnel to replace or recharge them. This requirement introduces numerous inconveniences and operational drawbacks. In light of this, for certain objects where the control signals to be transmitted are relatively simple, and which typically undergo corresponding physical actions when signals need to be sent (e.g., the opening and closing of a door lock), it has been proposed to harness these actions to drive a self-generating device. Such a device would produce electrical power to consequently trigger a wireless signal transmission circuit to send a signal. Conventionally, a common type of self-generating device employs a coil winding in conjunction with a movable or oscillating magnetic core. Electrical power is generated when the movement or oscillation of this magnetic core brings it into proximity or contact with different magnetic bodies, thereby altering the magnetic flux linkage within the coil winding and inducing an electrical current. However, a significant drawback of such conventional designs is that the oscillation of the magnetic core is typically constrained to occur within or in very close proximity to the coil winding. For the coil winding to generate a sufficient amount of electrical power, a substantial change in magnetic flux linkage is required, which in turn necessitates the magnetic core to remain relatively close to the coil. Consequently, this structural arrangement inherently limits the amplitude of the magnetic core's oscillation. This limitation results in a relatively low power output, often insufficient to effectively drive certain electronic devices that have comparatively higher power consumption requirements. SUMMARY OF THE INVENTION The present invention provides a device for self-power generation, which is configured to rotationally drive a power generation coil module or a magnetic member. The device as a whole is adapted to cooperate with the movement of a corresponding article to drive relative rotation between the power generation coil module and the magnetic member of the self-power generation device, thereby enabling inductive power generation in the power generation coil module to satisfy the power supply requirements of an electrical load. A rotary self-power generating device, comprising: a power generation coil module;a magnetic member; anda rotary assembly operatively connected to a drive mechanism;wherein one of the power generation coil module and the magnetic member is mounted on the rotary assembly such that, upon actuation by the drive mechanism, the rotary assembly causes a relative rotational movement between the power generation coil module and the magnetic member; wherein said relative rotation is configured to correspondingly induce a change in magnetic flux within the power generation coil module to generate electrical energy in the power generation coil module;and wherein output terminals of the power generation coil module are configured for connection to an electrical load to output the generated electrical energy. Furthermore, he rotary assembly includes a rotating member and a fixed member, the rotating member is pivotally connected to the fixed member by a rotating shaft, the power generation coil module and the magnetic member are respectively installed on the rotating member and the fixed member, and the rotating member is connected to the drive mechanism. Furthermore, said power generation coil module is mounted on said rotating member; and two magnetic members are disposed radially outward of an outer periphery of said rotating member and at a position corresponding to said power generating coil module. Furthermore, a portion of said power generation coil module extends toward said fixed member, and is positioned between two magnetic members. Furthermore, the power generation coil module comprises a magnetic core and a coil winding wound around the magnetic core, wherein a portion of the magnetic core extends to the fixing member and is positioned between two magnetic members. Furthermore, the rotating member comprises a rotating block; the rotating block is pivotally connected to the rotating member,the rotating member comprises two limiting blocks configured to limit a range of pivo