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Close-contact wireless speaker

A wireless speaker, close-range technology, applied in transducer circuits, frequency/directional characteristic devices, sensors, etc., can solve the problems of increasing the power consumption of the speaker itself and mobile devices, difficulty, and complicated operation.

Inactive Publication Date: 2017-10-20
湖州致远互联软件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, Bluetooth wireless speakers need to be paired with mobile devices before using Bluetooth. It’s a cumbersome speaker, I guess I’m not in the mood to turn it on
At the same time, the bluetooth after pairing will greatly increase the power consumption of the speaker itself and the mobile device, which will affect the portability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] to combine figure 1 and figure 2 , a close-contact wireless speaker, including a box body 1, a U-shaped through groove 2 is opened on the upper surface of the box body 1, and the two sides of the U-shaped through groove 2 are magnetic induction areas 3; the two long sides of the box body 1 are provided with There is a speaker area 4, a wide side of the box body 1 is provided with an external interface area, the external interface area includes a power switch 5, a Micro USB interface 6 and a 3.5mm headphone jack 7; a circle of LED indicator lights 4 is provided on the surface of the box body 1, and the LED The indicator light 4 is located between the speaker area 4 and the external interface area; a circuit board is arranged inside the box body 1, and the circuit board includes a preamplifier module, an equalizer module, a power amplifier module, a processor module and a power management module.

[0021] The width and height of the U-shaped channel 2 are 2 cm, so that ...

Embodiment 2

[0026] to combine figure 1 and figure 2 , explaining how the speaker works.

[0027] Most of the speakers of mobile devices are electromagnetic moving coil, generally composed of magnets, coils, diaphragms, etc. When the speaker is energized, the changing current passes through the coil to generate a changing magnetic field. The excited magnetic field and the magnetic field of the magnet itself cause the diaphragm to vibrate and produce sound. Since electromagnetic fields pervade the space around the loudspeaker, placing an induction coil near the loudspeaker induces a current.

[0028] Based on this, first turn on the power switch 5 of the speaker, and the LED indicator light 4 starts to flash, place the mobile device horizontally in the U-shaped slot 2, make one side of the speaker close to the magnetic induction area 3, and play the music of the mobile device. The induction coil senses the magnetic field emitted by the speaker of the mobile device, and converts the magn...

Embodiment 3

[0030] Such as image 3 As shown, the circuit includes operational amplifier U1, transistor Q1, capacitors C1 and C2, resistors R1~R6, and variable resistors R7~R9. The operational amplifier U1 is TL072. By adjusting the resistance of variable resistors R7~R9, The change of the system frequency f from 60Hz to 20KHz can be realized, which meets the range requirement of the selected speaker output frequency.

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Abstract

The invention provides a close-contact wireless speaker, which includes a box body, a U-shaped through groove is opened on the upper surface of the box body, and the two sides of the U-shaped through groove are magnetic induction areas; the two long sides of the box body are provided with speaker areas , one wide side of the box is provided with an external interface area, the external interface area includes a power switch, a Micro USB interface and a 3.5mm headphone jack; there is a circle of LED indicators on the surface of the box, and the LED indicator is located between the speaker area and the external interface area There is a circuit board inside the cabinet, and the circuit board includes a preamplifier module, an equalizer module, a power amplifier module, a processor module and a power management module. The present invention uses near-field magnetic coupling induction technology to transmit audio data so that any mobile device with a built-in speaker can play music as long as it is placed in the U-shaped slot of the speaker without loading any software or making any settings.

Description

technical field [0001] The invention relates to the technical field of wireless speakers, in particular to a close-contact wireless speaker. Background technique [0002] Wireless speakers are generally called by the way of wireless transmission instead of the traditional wired transmission mode, which can be enjoyed wirelessly without the connection of wires. From early low-cost FM wireless speakers and high-cost 2.4G wireless speakers to the current Bluetooth wireless speakers and Wifi wireless speakers, Bluetooth wireless speakers are popular in terms of price, anti-interference effect, sound quality, portability and universality. Consumers accept it, so now most of the market is dominated by Bluetooth wireless speakers. [0003] However, Bluetooth wireless speakers need to be paired with mobile devices before using Bluetooth. It is estimated that I am not in the mood to turn on such a cumbersome speaker. At the same time, after pairing, Bluetooth will greatly increase...

Claims

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Application Information

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IPC IPC(8): H04R1/20H04R3/00
CPCH04R1/20H04R3/00H04R2430/00
Inventor 徐坤
Owner 湖州致远互联软件有限公司
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