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Composite audio and electric power switching device and power adapter thereof

A power transfer and composite technology, which is applied to coupling devices, parts of connecting devices, and output power conversion devices, etc., to achieve the effects of low cost, strong applicability and simple design

Inactive Publication Date: 2009-06-10
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when users use the mobile electronic product, they generally do not listen to the audio signal while charging it, so the audio interface and the power interface are rarely used at the same time

Method used

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  • Composite audio and electric power switching device and power adapter thereof
  • Composite audio and electric power switching device and power adapter thereof
  • Composite audio and electric power switching device and power adapter thereof

Examples

Experimental program
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Embodiment Construction

[0015] Please refer to image 3 , the composite audio and power transfer device of the present invention is set in an electronic product, and its preferred embodiment includes an audio interface 30, an audio module 40, a power module 50, a first relay and a second relay, so The audio interface 30 includes two composite connection terminals 32, 34 and a ground terminal 36, the audio module 40 includes two audio terminals 42, 44 and a ground terminal 46, and the power module 50 includes a positive terminal 52 and a negative terminal 54. The first relay includes a coil L1 and three contacts A1, A2 and A3, and the second relay includes a coil L2 and three contacts B1, B2 and B3. Wherein, the audio interface 30 may be a 2.5mm or 3.5mm standard audio female connector.

[0016] A composite connection end 32 of the audio interface 30 is connected to the contact A1 of the first relay, an audio end 42 of the audio module 40 is connected to the contact A2 of the first relay, and the pow...

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Abstract

The invention provides a combined type audio frequency and power supply switching device, which comprises an audio frequency interface and two three-contact relays, wherein a first combined connection end of the audio frequency interface is connected with a first contact of the first relay, a second combined connection end of the audio frequency interface is connected with an audio frequency end of an audio frequency module, and a grounding end of the audio frequency interface is connected with a first contact of the second relay; and a second contact and a third contact of the first relay are connected with the other audio frequency end of the audio frequency module and an anode end of a power supply module respectively, and the first contact and a second contact of the second relay are connected with the grounding end of the audio frequency module and a cathode end of the power supply module respectively. The combined type audio frequency and power supply switching device can receive an audio signal of electronic products as well as charge the electronic products, so that the device has stronger applicability. The invention also provides a power adapter which can charge or supply power to the electronic products comprising the combined type audio frequency and power supply switching device.

Description

technical field [0001] The invention relates to a composite audio and power transfer device and a power adapter for charging or powering electronic products including the composite audio and power transfer device. Background technique [0002] At present, various mobile electronic products such as mobile phones, handheld game consoles, MP3 and MP4, etc. all contain audio devices and charging devices. [0003] Please refer to figure 1 , which is a structural schematic diagram of an existing mobile electronic product, which includes an audio interface 10, a power interface 12, an audio module 14 and a power module 16, the audio interface 10 receives the audio signal of the audio module 14, The power interface 12 is used to transmit power to the power module 16 . When in use, an earphone or a sound box is connected with the audio interface 10 to listen to the audio signal of the mobile electronic product; a power adapter is connected to the power interface 12 to provide work ...

Claims

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Application Information

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IPC IPC(8): H01R31/06H02M1/00
CPCH01R31/065H01R13/703H01R13/7039H01R29/00
Inventor 刘长春甘小林何友光
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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