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Portable wireless sound box

A wireless speaker, portable technology, applied in transducer circuits, frequency/direction characteristic devices, sensors, etc., can solve the problems of increasing the volume of the speaker, waste of supporting products, poor sound quality, etc., to achieve beautiful appearance and convenient use. , the effect of small speaker volume

Pending Publication Date: 2018-01-12
申桂花
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The switch on the above-mentioned wireless speaker is usually fixed directly with the main board of the circuit. For the convenience of operation, the main board of the circuit needs to be fixed on the casing of the speaker. In this way, the toggle parts or pressing parts of the switch can be exposed outside the casing.
The switch is a movable part and is usually not easy to make a sealed structure. Therefore, the wireless speaker in the prior art almost installs the switch and the circuit main board outside the airtight cavity of the speaker in the wireless speaker casing, that is, in the wireless speaker casing. A certain space should be reserved between the airtight cavity and the casing to install switches and circuit boards. In this way, when the volume of the entire wireless speaker is determined, the volume of the airtight cavity will be compressed (volume compression will reduce the sound quality effect. worse), in turn, when the design size of the airtight cavity is determined, it will increase the volume of the entire speaker
[0004] Since different speakers are equipped with different sizes and shapes of circuit boards, in order to make full use of the space in the cabinet, the entire shape of the speaker will change with the shape and size of the circuit board. In this way, the shape of the speaker There are also various types, which is not conducive to standardization. As a result, it can also cause great waste in the production of supporting products in factories.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Such as image 3 As shown, the transistor Q1 is of PNP type, and its model is 9015, and the MOS tube is an NMOS tube, whose model is Z2302.

[0059] The base of the transistor Q1 is connected to one end of the swing switch 4 through a resistor R1, the other end of the swing switch 4 is connected to the negative electrode of the battery 5, and the emitter of the transistor Q1 is connected to the positive electrode of the battery 5 all the way. One way is connected to the power input end of the sound power amplifier circuit; its collector is connected to the gate of the MOS transistor Q2.

[0060] The source of the MOS transistor Q2 is connected to the negative electrode of the battery 5; the drain of the MOS transistor is grounded.

[0061] The resistor R2 is connected across the base and the emitter of the transistor Q1, and the resistor R4 is connected across the source and the gate of the MOS transistor Q2;

[0062] One end of the resistor R3 is connected to the base of the t...

Embodiment 2

[0067] Such as Figure 4 As shown, the transistor Q1 is of the NPN type, and its model is 9014, and the MOS tube is a PMOS tube, and the model is Z2301.

[0068] The base of the transistor Q1 is connected to one end of the swing switch 4 through a resistor R1, the other end of the swing switch 4 is connected to the positive electrode of the battery 5, and the emitter of the transistor Q1 is connected to the negative electrode of the battery 5. One ground terminal; its collector is connected to the gate of the MOS transistor Q2.

[0069] The source of the MOS tube Q2 is connected to the positive electrode of the battery 5; the drain of the MOS tube is connected to the power supply terminal of the sound power amplifier circuit.

[0070] The resistor R2 is connected across the base and the emitter of the transistor Q1, and the resistor R4 is connected across the source and the gate of the MOS transistor Q2;

[0071] One end of the resistor R3 is connected to the base of the transistor Q...

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PUM

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Abstract

Disclosed is a portable wireless sound box which is good in sealing and large in volume of a sound cavity inside a casing and has a good speaker sound effect. The sound box comprises speakers, a circuit mainboard and a battery which are arranged in the casing. A switch of the sound box is a swing switch built in the casing. When the wireless sound box is started to work, delayed boot operation without connection can be realized only by swinging. The volume of the sound box in such a structure can be made smaller, and the modeling can be made more beautiful; compared to a sound box with the same volume, the sealing cavity of the sound box provided by the invention is larger, and the bass can be made better; the circuit mainboard can be universal to sound boxes in various shapes; since thereare no external movable switch buttons, a waterproof sound box can be made at a lower cost; since there are no movable switch buttons, the sealing and the assembling of the portable sound box are simpler and more reliable; and after the sound box is connected by use of a mobile phone, the sound box can be automatically shut down after a time delay simply by breaking the connection between the mobile phone and the sound box without separate operation of turning off the power supply of the sound box, and the use is more convenient.

Description

Technical field [0001] The invention relates to a portable wireless sound box, in particular to a wireless sound box with a closed cavity and a swing switch. Background technique [0002] Wireless speakers are also called wireless Bluetooth speakers. They are equipped with a toggle switch or key switch (hereinafter referred to as switch) to turn on the power. When in use, turn on the switch and pair with other Bluetooth audio devices to connect the audio signal output by the Bluetooth audio device Broadcast by this wireless speaker. [0003] The switch on the above-mentioned wireless speaker is usually directly fixed to the mainboard of the circuit. In order to facilitate the operation, the mainboard of the circuit needs to be fixed on the casing of the speaker. In this way, the toggle or pressing parts of the switch can be exposed outside the casing. However, the switch is a movable part and it is usually difficult to make a sealed structure. Therefore, in the prior art wireless ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/28H04R3/00
Inventor 申桂花
Owner 申桂花
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