Charging-free bluetooth headset based on magnetic coupling wireless power transmission technology
A Bluetooth headset, wireless power transmission technology, applied in battery circuit devices, earpiece/headphone accessories, rechargeable batteries/devices, etc., can solve the problems of human biological injury, inability to bypass obstacles, long transmission distance, etc., to ensure normal work. Effect
Inactive Publication Date: 2017-06-20
ZHEJIANG UNIV
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Problems solved by technology
Although the Bluetooth headset is free from the shackles of the earphone cable, it needs to be charged regularly, and it is inconvenient to use normally due to the shackles of the charging cable during charging.
[0003] According to the principle of power transmission, wireless power transmission can be roughly divided into three categories: the first category is the direct coupling of the transformer principle. Although this method has a large power, it is only suitable for short distances; the second category is radio wave wireless energy transmission , directly using the principle that electromagnetic wave energy can be transmitted and received through the antenna. Although this method achieves long-distance and high-power energy transmission, the energy transmission is limited by the direction and cannot bypass obstacles, and the loss is large, which is harmful to the human body. The third type is the non-radiation coupling resonance method, which can transmit in the presence of obstacles, the transmission distance is relatively long, the transmission power is also large, and there is no harm to the human body
Method used
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[0017] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 , figure 2 As shown, the present invention discloses a charging-free Bluetooth headset based on magnetic coupling wireless power transmission technology, which includes a headset body 1 and a power transmission circuit with a sensing range of 0-60cm; the Bluetooth headset body 1 includes two headset units 101 and the connecting piece 102 connecting the two earphone units; the connecting piece 102 is provided with a data line and a power line connecting the two earphone units, one of the two earphone units 101 is provided with a bluetooth earphone function circuit, and the earphone unit The body 101 is provided with a rechargeable lithium battery, a power receiving circuit and a rectification and voltage regulation system. The power reception circuit receives the power of the power transmission circuit, and transmits t...
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The invention discloses a charging-free bluetooth headset based on magnetic coupling wireless power transmission technology. The charging-free bluetooth headset comprises a headset body and an electric energy emission circuit, the induction range of which is 0-60 cm. The bluetooth headset body comprises two earphone units and a connecting piece for connecting the two earphone units. Each earphone unit is provided with an ear muff matched with a human ear. Each earphone unit is internally provided with a rechargeable lithium battery, an electric energy receiving circuit and a rectification and voltage regulation system. The electric energy receiving circuit receives electric energy of the electric energy emission circuit, and transmits the electric energy to the rechargeable lithium battery through the rectification and voltage regulation system; and the rechargeable lithium battery provides a working voltage for a bluetooth headphone function circuit. The wireless bluetooth headset can carry out wireless charging on the lithium battery through the magnetic coupling wireless power transmission technology and provide power for inner parts in the wireless bluetooth headset body, so that the defects that a conventional bluetooth headset needs periodic charging, and due to dependence on a charging line, the bluetooth headset is not convenient to use are prevented.
Description
technical field [0001] The invention discloses a bluetooth earphone, in particular to a charge-free bluetooth earphone based on magnetic coupling wireless power transmission technology. Background technique [0002] Earphones are one of the most important external devices for computers and mobile phones, which provide great convenience for people's daily life and also play a very important role in our study and life. However, the earphone connection has brought great inconvenience and is easily damaged. With the development of wireless signal transmission technology, the technology of Bluetooth headset tends to be stable, which makes the headset get rid of the shackles of the headset cable, and can also transmit stably within a certain distance from the computer or mobile phone. Although the Bluetooth headset is free from the shackles of the earphone cable, it needs to be charged regularly, and it is inconvenient to use normally due to the shackles of the charging cable dur...
Claims
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Login to View More IPC IPC(8): H04R1/10H02J50/12H02J7/00
CPCH04R1/1025H02J7/025H04R2201/10
Inventor 章可可
Owner ZHEJIANG UNIV
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