Desktop wireless group charging system
A wireless and energy management system technology, applied in the field of power electronics conversion, can solve problems such as heavy weight, limited capacity, and inability to charge multiple devices at the same time
Inactive Publication Date: 2016-04-20
YANGZHOU UNIV
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Problems solved by technology
Portable rechargeable batteries (power banks) can also complete the charging of portable electronic devices, but their limitations are: 1. Limited capacity; 2. Heavy weight; 3. Cannot charge multiple devices at the same time; 4. Carrying is limited by traffic modes
At present, the existing wireless chargers on the market can only realize 1-to-1 charging, and the transmitting end of the wireless energy also needs to be connected to the DC or AC input with a wire, which cannot be well integrated with the desktop in terms of space.
At the same time, the current charging method for charging in public places is still limited to the coin-operated method. For the operator, additional human resources are required to manage the charging
Method used
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[0010] Such as figure 1 , 2 As shown, the desktop wireless group charging system of the present invention includes a desktop 3 made of non-conductive material, a transmitting coil 2 integrated on the back of the desktop 3, and several relay coils 4 coupled to the transmitting coil 2 are distributed on the upper surface of the desktop 3 , 5 is the electric load.
[0011] The emission source 1 is composed of a rectifier circuit B composed of an input EMI filter, a bridge diode rectifier, a power factor correction converter, and a cascaded full-bridge inverter composed of a high-frequency inverter circuit C. The input of the transmitting source is connected to the single-phase power frequency AC mains A, and the output of the transmitting source is a single-phase high-frequency square wave voltage. The transmitting coil 2 can be installed under the desktop 3 through a non-metallic clamp. The operating frequency of the transmitting source is between 20kHz and 20MHz, and the pow...
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The invention discloses a desktop wireless group charging system suitable for conference rooms, restaurants and entertainment sites, belongs to the technical field of power conversion and electronic conversion, and particularly discloses a wireless power transmitting system. The system comprises an emitting source, a sending side coil, a relay coil, electrified loads and an energy management system, wherein the emitting source, the sending side coil, the relay coil, the electrified loads and the energy management system are integrated on a desktop, the electrified loads are provided with receiving coils, and the energy management system is based on a microcontroller. The system has the advantages that energy transmission of the emitting source and the loads can be achieved, the optimal frequency of the system can be tracked so that the stable running of the system can be ensured, the switch-in and switch-out of the loads can be managed, foreign matter can be distinguished, and power charging and billing can be conducted for the electrified loads.
Description
technical field [0001] The invention belongs to the technical field of power electronic conversion, in particular to a wireless energy transmission system. Background technique [0002] At present, the personal ownership of mobile electronic devices such as mobile phones and portable computers is increasing year by year, and the charging problem has gradually become a problem for device owners. Because the construction of infrastructure in public places will first consider cost and safety issues, it is rare to provide charging for portable devices. Therefore, at present, charging or free charging services are mainly provided for portable electronic device owners in the form of centralized counters in public places, and portable electronic device owners need to wait nearby for charging to complete. Portable rechargeable batteries (power banks) can also complete the charging of portable electronic devices, but their limitations are: 1. Limited capacity; 2. Heavy weight; 3. Can...
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IPC IPC(8): H02J7/02H02J50/10G07F15/00
CPCG07F15/003H02J7/025Y02T90/12
Inventor 蒋伟莫岳平史旺旺
Owner YANGZHOU UNIV