KR-20260062546-A - WIRELESS POWER SUPPLYING SYSTEM

Abstract

The present invention relates to a wireless power supply system, wherein a wireless power supply system according to an embodiment disclosed in the present invention comprises a transmitter that transmits directional RF radio waves generated through beamforming, and a receiver that receives the directional RF radio waves transmitted from the transmitter and converts them into direct current.

Inventors

• 민진기

Assignees

• 주식회사 바이너리컬

Dates

Publication Date

20260507

Application Date

20241029

Claims (2)

1. A transmitter that transmits directional RF waves generated through beamforming; and A wireless power supply system characterized by including a receiver that receives the directional RF radio waves transmitted from the transmitter and converts them into direct current.
2. In claim 1, The above receiver is, A wireless power supply system characterized by including at least one receiver-side antenna for receiving the above-mentioned directional RF radio waves and transmitting location information of a device including the receiver to the transmitter.

Description

Wireless Power Supply System The present invention relates to a wireless power supply system, and more specifically, to a wireless power supply system that minimizes wasted energy. Recently, new wireless form factor products such as new wearables, healthcare devices, and IoT devices are continuously being released, but power consumption is increasing due to the rising computational demands and the addition of various functions, whereas the battery energy density of these products is unable to handle the power consumption. Regarding this issue, there has been a limitation in that a choice had to be made between device duration and battery capacity. More specifically, there were form factor limitations, such as inconvenience caused by frequent charging if the device's battery capacity is designed to be small, and inconvenience caused by weight if the device's battery capacity is designed to be large. Among devices, there are limitations to battery usage itself in the case of devices and infrastructure that cannot be charged frequently or receive power via external connections, such as implantable devices (e.g., defibrillators), smart homes, and smart cities. In particular, in the healthcare sector, device reliability is critical as it is closely linked to user safety, but there is a problem where the introduction of wireless devices becomes somewhat difficult in areas with limited operating time. Battery usage is surging due to the increasing demand for wireless form factor products and the continuous launch of new wearable, healthcare, and IoT devices. In particular, the energy consumed to produce batteries and battery stability are also becoming issues. More specifically, key raw materials for batteries, such as lithium, cobalt, and nickel, are primarily mined in developing countries; the mining process consumes significant energy and has a negative impact on the environment. Additionally, refining these mined raw materials consumes a large amount of energy. The production and assembly of battery cells also require substantial power, and carbon emissions increase significantly if this power is supplied from a fossil fuel-based grid. Taking all these factors into account, a single smartwatch (approximately 1.58Wh), a type of wearable device, generates a carbon footprint of about 158g. Furthermore, batteries are consumables with limited charge-discharge cycles, and there is a high likelihood of environmental pollution caused by various toxic substances released internally upon disposal. Additionally, due to the nature of batteries storing energy in a confined space, external impact or chemical damage can lead to spontaneous combustion, resulting in safety accidents and negative environmental impacts. In summary, the aforementioned problems include issues with wearable healthcare devices, such as limited operating time and difficulties in user-friendly design due to the reliance on batteries; limitations in battery technology, where the pace of technological advancement fails to keep up with computational demands, imposing constraints on product design; and energy density issues, such as the need for frequent charging due to insufficient battery capacity, design constraints based on size, causing UX inconvenience, and problems with battery life and stability. These issues are particularly prominent in medical devices where reliability and stability are essential, leading to a growing demand for technologies that can resolve battery issues in stable wireless devices (especially in the healthcare sector). Meanwhile, radio wave energy emitted from wireless networks, such as routers and repeaters, is being wasted instead of being reused. For example, to ensure seamless communication and fast response times, wireless networks continuously emit at least 5W to over 100W of wireless energy even in an IDLE state. Furthermore, wireless network devices propagate energy across wide areas by emitting it in all directions; consequently, any wireless energy transmitted in directions other than that used for communication with other devices is lost. In particular, wireless communication environments exist in almost every location, and massive energy loss is occurring through this wireless network infrastructure present in such widespread places. Measures are needed to minimize such energy loss. FIG. 1 is a conceptual diagram of a wireless power supply system according to a disclosed embodiment of the present invention. FIG. 2 is intended to illustrate directional RF radio waves by a transmitter of a wireless power supply system according to an embodiment disclosed in the present invention. FIG. 3 is intended to explain the power supply process by transmitting and receiving directional RF waves in a wireless power supply system according to an embodiment disclosed in the present invention. Hereinafter, a wireless power supply system according to one embodiment of the present invention will be described in detail with reference