Wireless power transmission apparatus
A wireless power transmission and coil technology, applied in the direction of circuit devices, circuits, inductors, etc., can solve the problems of small coupling strength, increase the diameter and thickness of the coil, and difficulty in performance realization, so as to improve the electromagnetic coupling strength and improve the coupling strength Effect
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no. 1 example
[0045] figure 2 A schematic diagram showing a wireless power transmission device according to a first embodiment of the present invention.
[0046] Such as figure 2 As shown, the wireless power transmission device mainly includes a first coil 11 and a second coil 21 . The second coil 21 is electromagnetically coupled to the first coil 11 without being in contact. One of the first coil 11 and the second coil 21 is a transmitting coil, and the other is a receiving coil.
[0047] Please continue to see figure 2 , the first coil 11 is a helical coil, which defines a hollow annular space inside, the central axis of the first coil 11 passes through the annular space, and the second coil 21 passes through the first coil 11 via the annular space.
[0048] exist figure 2 In the illustrated embodiment, the central axis of the second coil 21 coincides with the central axis of the first coil 11 , that is, the second coil 21 has the same central axis as the first coil 11 . Please...
no. 2 example
[0060] image 3 A schematic diagram showing a wireless power transmission device according to a second embodiment of the present invention.
[0061] image 3 The wireless power transmission device of the second embodiment shown with figure 1 The wireless power transmission device of the first embodiment shown differs in that: figure 1 The wireless power transmission device of the first embodiment shown includes only one first coil assembly 10, and image 3 The wireless power transmission device of the illustrated second embodiment includes a plurality of first coil assemblies 10 .
[0062] Such as image 3 As shown, the wireless power transmission device includes a plurality of first coil assemblies 10 and a second coil assembly 20 . One second coil assembly 20 passes through the plurality of first coil assemblies 10 via the annular space defined by each first coil 11 of the plurality of first coil assemblies 10 , and is not in contact with each first coil assembly 10 . ...
no. 3 example
[0066] Figure 4 A schematic diagram showing a wireless power transmission device according to a third embodiment of the present invention.
[0067] Such as Figure 4 As shown, the wireless power transmission device mainly includes a first coil 110 and a second coil 210 . The second coil 210 is electromagnetically coupled to the first coil 110 without being in contact. One of the first coil 110 and the second coil 210 is a transmitting coil, and the other is a receiving coil.
[0068] Please continue to see Figure 4 , the first coil 110 includes a first portion 111 and a second portion 112 opposite to the first portion 111 . The first part 111 and the second part 112 of the first coil 110 are spaced apart from each other, however, please note that the first part 111 and the second part 112 of the first coil 110 are coiled by the same wire.
[0069] Such as Figure 4 As shown, a separation space is defined between the first portion 111 and the second portion 112 of the f...
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