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Enhanced wireless charging system

A wireless charging and enhanced technology, applied in electromagnetic wave systems, current collectors, electric vehicles, etc., can solve the problems that ultra-thin mobile phones are difficult to achieve, unfavorable for the promotion of wireless charging technology, etc., to achieve free-position charging, increase charging distance, space saving effect

Inactive Publication Date: 2013-08-14
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Generally, devices to be charged, such as mobile phones, etc., the ferrite thickness required by the existing technology is not less than 0.5mm, and mobile phones that provide wireless charging usually need to replace a thicker back cover, which is not conducive to the promotion of wireless charging technology. At the same time, ultra-thin mobile phones difficult to achieve in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] refer to image 3 , the wireless transmitting part 10 includes a transmitting coil 11 and a first ferrite 10, the first ferrite 10 is arranged below the transmitting coil 11, and the first ferrite 10 connects the transmitting coil 11 and other metals in the wireless charging device The components are spaced apart, and the first ferrite 10 is used to prevent metal components arranged in the wireless charging device from affecting the transmitting coil 11 to generate magnetic flux. The relay part 30 includes a relay coil 31 and a circuit part. The circuit part includes a capacitor 32 . The two ends of the capacitor 32 are connected to the two ends of the relay coil 31 to form a loop. The wireless receiving part 20 includes a receiving coil 202 and a second ferrite 203, the wireless receiving part 20 is arranged in the charged device, the charged device includes a battery 204, and the second ferrite 203 is arranged in the receiving coil 202 and the battery 204 between; th...

Embodiment 2

[0062] This embodiment is an improvement made on the basis of Embodiment 1. In this example, the wireless transmitting part 10 includes two transmitting coils, such as Figure 9 shown. The two transmitting coils are respectively the first transmitting coil 111 and the second transmitting coil 112 , and the first transmitting coil 111 and the second transmitting coil 112 are arranged side by side above the first ferrite 12 . The relay coil 31 is located above the middle of the first transmitting coil 111 and the second transmitting coil 112 . In this example, if Figure 10 As shown, the circuit part 33 connected to both ends of the relay coil 31 is provided with a switch 34 and a control part 35 in addition to the capacitor 32 . In this example, the relay coil 31 has a double function, and can be used as a backup transmitting coil, or can be used alone to realize the function of the transmitting coil. Except for the above-mentioned improvements, the rest of this embodiment i...

Embodiment 3

[0069] This embodiment is an improvement made on the basis of Embodiment 1 and Embodiment 2, such as Figure 11 As shown, this example includes two relay parts and one transmitting coil, and each relay part includes the circuit part as described in Embodiment 2, and the transmitting coil 11 is located below the middle of the two relay coils 31, The relay coil has dual functions of a transmitting coil and a relay coil, and is selected by the circuit part 33 . Except for the above-mentioned improvements, the rest of this embodiment is the same as the first embodiment. This embodiment realizes free charging at more locations.

[0070] The working principle of this embodiment is as follows:

[0071] refer to Figure 11 , when the position of the receiving coil is above the transmitting coil 11, such as Figure 11 Above position A shown in , the transmitting coil 11 receives the current from the signal source, the control circuit 35 controls the switch 34 to turn off, and the c...

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Abstract

The invention provides an enhanced wireless charging system, which comprises a wireless emitting part, at least one relay part, and a wireless receiving part, wherein the wireless emitting part comprises a first ferrite and at least one emitting coil, and the emitting coil is connected with a signal source; the relay part comprises a relay coil and a circuit part, and two ends of the relay coil and two ends of the circuit part form a return circuit; and the wireless receiving part comprises a receiving coil and a second ferrite. According to the system, a first coil is powered on to produce a first magnetic flow passing through the relay coil; the relay coil produces a first induced current; the circuit part conducts charging and discharging, so as to allow the relay coil to produce a second magnetic flux; and the second magnetic flux passes through the receiving coil, so that the receiving coil obtains energy to charge a battery. Through the adoption of the system, the relay coil and a capacitor are introduced, the charging distance increasing can be realized through the increment of the magnetic flow of the receiving coil; the ferrite is thinner to save space so as to realize the application of thinner mobile phones and other terminals; and additionally, a control part is introduced, and the relay coil or the emitting coil is increased, so as to realize charging at free position.

Description

[0001] technical field [0002] The invention relates to the technical field of design of mobile phone charging systems, in particular to an enhanced wireless charging system. [0003] Background technique [0004] Wireless terminals, such as PDA (Persional Digital Assistant), mobile phones and other power supplies are provided by a rechargeable battery. The existing charging methods include: an independent battery charging base, charging through a USB universal interface and wireless charging. The stand-alone battery charging base method requires at least two batteries, and the batteries do not work during charging. Charging through the USB universal interface requires only one battery, and the battery is in continuous working state during charging, but requires a USB connection. Wireless charging enables a battery to be charged at any time without any connecting wires. [0005] In recent years, the technology of wireless charging has developed rapidly and is rapidly ap...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J17/00H02J50/10
Inventor 何其娟孙劲
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS
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