CN211959451U - Loudspeaker back clip - Google Patents
Loudspeaker back clip Download PDFInfo
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- CN211959451U CN211959451U CN202020803572.4U CN202020803572U CN211959451U CN 211959451 U CN211959451 U CN 211959451U CN 202020803572 U CN202020803572 U CN 202020803572U CN 211959451 U CN211959451 U CN 211959451U
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- mobile phone
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- speaker
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Abstract
The utility model discloses a loudspeaker back clip, which comprises a main body internally provided with a storage battery, wherein the upper part of the main body is provided with a clamping piece for clamping a mobile phone, the lower end of the main body is provided with a supporting block for supporting the mobile phone, a main control board and two micro loudspeakers are arranged in the supporting block, the micro loudspeakers and the storage battery are respectively and electrically connected with the main control board, the supporting block is provided with a conductive interface electrically connected with the main control board, and the conductive interface is used for connecting the mobile phone to transmit electric energy and audio signals; the main control board is provided with a Bluetooth module and an audio signal processing module electrically connected with the micro loudspeaker, the audio signal processing module and the mobile phone are provided with two switchable signal connection channels, one signal connection channel is in signal connection with the mobile phone through the Bluetooth module, and the other signal connection channel is in signal connection with the mobile phone through a conductive interface. Two micro-speakers are arranged in the speaker back clip, and compared with a single micro-speaker arranged in a mobile phone, the mobile phone has more excellent tone quality and larger volume, and user experience is enhanced.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to a speaker back splint.
Background
With the widespread popularity of smart phones, people who like listening to music often play music with the phones. With the development of the technology, people have higher and higher requirements on sound, the traditional smart phone is designed for a single loudspeaker, no bass effect exists, the sound size is limited, and the requirements of people cannot be met gradually. Moreover, playing music with a smartphone is also a challenge to the endurance of the smartphone.
Traditional smart mobile phone back splint only has single function of charging, does not have the speaker function, if can be for its increase sound play function, expect to have good market prospect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the loudspeaker back clip can play sound and charge a mobile phone.
In order to solve the technical problem, the utility model discloses a technical scheme be: a speaker back clip comprises a main body, wherein a storage battery is arranged in the main body, a clamping piece used for clamping a mobile phone is arranged at the upper part of the main body, a supporting block used for supporting the mobile phone is arranged at the lower end of the main body, a main control board and two micro speakers are arranged in the supporting block, the micro speakers and the storage battery are respectively and electrically connected with the main control board, a conductive interface electrically connected with the main control board is arranged on the supporting block, and the conductive interface is used for connecting the mobile phone to transmit electric energy and audio signals; the main control board is provided with a Bluetooth module and an audio signal processing module electrically connected with the micro loudspeaker, the audio signal processing module and the mobile phone are provided with two switchable signal connection channels, one signal connection channel is through the Bluetooth module and the mobile phone signal connection, and the other signal connection channel is through the conductive interface and the mobile phone signal connection.
Furthermore, the conductive interface is arranged on the top surface of the supporting block, a sound outlet is arranged on the bottom surface of the supporting block, and the sound outlet of the micro-speaker is arranged right opposite to the sound outlet.
Further, the clamping piece is arc-shaped.
Furthermore, a main control chip is arranged on the main control board, and the main control chip controls the switching of the audio signal processing module and the mobile phone signal connection channel by detecting the on-off of the conductive interface and the mobile phone electric energy transmission channel.
Furthermore, a charging circuit is arranged on the main control panel and connected with the conductive interface and the storage battery.
Further, the storage battery is a lithium ion battery.
Furthermore, the audio signal processing module comprises a preceding power amplifier processing module and a subsequent power amplifier processing module, and after the bluetooth module or the conductive interface receives an audio signal from the mobile phone, the audio signal is sequentially subjected to audio amplification processing by the preceding power amplifier processing module and the subsequent power amplifier processing module and then is transmitted to the micro speaker; the preceding stage power amplifier processing module is used for optimizing an audio signal and amplifying a bass signal; and the rear-stage power amplifier processing module is used for integrally amplifying the audio signal.
Further, in the two micro speakers, one of the micro speakers is a left channel micro speaker, and the other of the micro speakers is a right channel micro speaker.
Furthermore, the rear-stage power amplifier processing module comprises a dual-channel digital power amplifier chip, and is used for controlling the left-channel micro speaker and the right-channel micro speaker to work and analyzing the audio signals.
The beneficial effects of the utility model reside in that: two micro-speakers are arranged in the speaker back clip, and compared with a single micro-speaker arranged in a mobile phone, the mobile phone has more excellent tone quality and larger volume, and user experience is greatly improved. When the mobile phone and the conductive interface do not form an electric energy transmission channel (namely the loudspeaker back clamp does not charge the mobile phone), the loudspeaker back clamp and the mobile phone transmit audio signals through the Bluetooth module, and the loudspeaker back clamp can be regarded as a Bluetooth sound box; when the mobile phone and the conductive interface form an electric energy transmission channel (namely, the speaker back clip charges the mobile phone), the speaker back clip and the mobile phone transmit an audio signal through the conductive interface, and at the moment, the speaker back clip integrates the functions of sound emission and charging.
Drawings
Fig. 1 is a schematic view of a speaker back clip and a mobile phone according to a first embodiment of the present invention;
fig. 2 is an exploded view of a speaker back clip according to a first embodiment of the present invention.
Description of reference numerals:
1. a main body;
2. a mobile phone;
3. a clip;
4. a support block;
5. a main control board;
6. a micro speaker;
7. a conductive interface;
8. a sound outlet hole;
9. and (4) a storage battery.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, a speaker back clip includes a main body 1 having a storage battery 9 inside, a clip 3 for holding a mobile phone 2 is disposed on an upper portion of the main body 1, a support block 4 for supporting the mobile phone 2 is disposed on a lower end of the main body 1, a main control board 5 and two micro speakers 6 are disposed in the support block 4, the micro speakers 6 and the storage battery 9 are respectively electrically connected to the main control board 5, a conductive interface 7 electrically connected to the main control board 5 is disposed on the support block 4, and the conductive interface 7 is used for connecting the mobile phone 2 to transmit electric energy and audio signals; the main control board 5 is provided with a Bluetooth module and an audio signal processing module electrically connected with the micro loudspeaker 6, the audio signal processing module and the mobile phone 2 are provided with two switchable signal connection channels, one signal connection channel is used for passing through the Bluetooth module and the mobile phone 2, and the other signal connection channel is used for passing through the conductive interface 7 and the mobile phone 2.
From the above description, the beneficial effects of the present invention are: two micro-speakers 6 are arranged in the speaker back clip, and compared with a single micro-speaker 6 arranged in the mobile phone 2, the micro-speaker has more excellent tone quality and larger volume, and user experience is greatly improved. When the mobile phone 2 does not form an electric energy transmission channel with the conductive interface 7 (namely, the mobile phone 2 is not charged by the speaker back clip), the speaker back clip and the mobile phone 2 transmit an audio signal through the bluetooth module, and at the moment, the speaker back clip can be regarded as a bluetooth sound box; when the mobile phone 2 and the conductive interface 7 form an electric energy transmission channel (i.e. the speaker back clip charges the mobile phone 2), the speaker back clip and the mobile phone 2 transmit an audio signal through the conductive interface 7, and at the moment, the speaker back clip integrates the functions of sound emission and charging.
Further, the conductive interface 7 is arranged on the top surface of the supporting block 4, a sound outlet 8 is arranged on the bottom surface of the supporting block 4, and a sound outlet of the micro-speaker 6 is arranged opposite to the sound outlet 8.
As is apparent from the above description, the sound outlet hole 8 is provided so that the support block 4 does not affect the transmission of the sound produced by the micro-speaker 6, which is advantageous for further improving the sound quality.
Further, the clip 3 is arc-shaped.
As can be seen from the above description, the mobile phone 2 is connected to the speaker back clip in an inserting manner, so that the user operation is simple and convenient, and the user experience is further enhanced.
Further, a main control chip is arranged on the main control board 5, and the main control chip controls the switching of the audio signal processing module and the signal connection channel of the mobile phone 2 by detecting the on-off of the electric energy transmission channel of the conductive interface 7 and the mobile phone 2.
Furthermore, a charging circuit is arranged on the main control panel 5 and connected with the conductive interface 7 and the storage battery 9.
Further, the storage battery 9 is a lithium ion battery.
Furthermore, the audio signal processing module comprises a preceding power amplifier processing module and a subsequent power amplifier processing module, and after the bluetooth module or the conductive interface 7 receives the audio signal from the mobile phone 2, the audio signal is amplified by the preceding power amplifier processing module and the subsequent power amplifier processing module in sequence and then transmitted to the micro speaker 6; the preceding stage power amplifier processing module is used for optimizing an audio signal and amplifying a bass signal; and the rear-stage power amplifier processing module is used for integrally amplifying the audio signal.
Further, in the two micro speakers 6, one micro speaker 6 is a left channel micro speaker 6, and the other micro speaker 6 is a right channel micro speaker 6.
Furthermore, the rear-stage power amplifier processing module comprises a dual-channel digital power amplifier chip, and is used for controlling the left-channel micro speaker 6 and the right-channel micro speaker 6 to work and analyzing the audio signals.
Example one
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a speaker back clip comprises a main body 1 internally provided with a storage battery 9, wherein a clamping piece 3 used for clamping a mobile phone 2 is arranged at the upper part of the main body 1, a supporting block 4 used for supporting the mobile phone 2 is arranged at the lower end of the main body 1, a main control board 5 and two micro speakers 6 are arranged in the supporting block 4, the micro speakers 6 and the storage battery 9 are respectively and electrically connected with the main control board 5, a conductive interface 7 electrically connected with the main control board 5 is arranged on the supporting block 4, and the conductive interface 7 is used for connecting the mobile phone 2 to transmit electric energy and audio signals; the main control board 5 is provided with a Bluetooth module and an audio signal processing module electrically connected with the micro loudspeaker 6, the audio signal processing module and the mobile phone 2 are provided with two switchable signal connection channels, one signal connection channel is used for passing through the Bluetooth module and the mobile phone 2, and the other signal connection channel is used for passing through the conductive interface 7 and the mobile phone 2. The conductive interface 7 may be a USB interface. The audio signal processing module is a common technical means in the technical field of electroacoustic transducers, and is not described herein again.
The conductive interface 7 is arranged on the top surface of the supporting block 4, a sound outlet 8 is arranged on the bottom surface of the supporting block 4, and the sound outlet of the micro-speaker 6 is arranged right opposite to the sound outlet 8. In this embodiment, the clamping piece 3 is the arc, the quantity of clamping piece 3 is two, two the clamping piece 3 sets up relatively. Optionally, a portion of the main body 1, the clip 3 and the support block 4 are integrally injection molded.
Further, a main control chip is arranged on the main control board 5, and the main control chip controls the switching of the audio signal processing module and the signal connection channel of the mobile phone 2 by detecting the on-off of the electric energy transmission channel of the mobile phone 2 and the conductive interface 7; the main control chip can select an AC4602 chip produced by Jieli corporation. When the main control chip detects that the conductive interface 7 is disconnected with the electric energy transmission channel of the mobile phone 2, the main control chip controls the audio signal processing module to be in signal connection with the mobile phone 2 through the Bluetooth module; when the main control chip detects that conductive interface 7 and cell-phone 2 electric energy transmission channel switch-on back, main control chip control the audio signal processing module pass through conductive interface 7 with cell-phone 2 signal connection, so can let 2 audio signal of cell-phone transmit more steadily, do not receive external disturbance, do benefit to assurance tone quality, reinforcing user experience.
The main control panel 5 is provided with a charging circuit, and the charging circuit is connected with the conductive interface 7 and the storage battery 9. Optionally, the storage battery 9 is a lithium ion battery.
In other embodiments, the audio signal processing module includes a preceding power amplifier processing module and a subsequent power amplifier processing module, and after the bluetooth module or the conductive interface 7 receives the audio signal from the mobile phone 2, the audio signal is sequentially subjected to audio amplification processing by the preceding power amplifier processing module and the subsequent power amplifier processing module, and then is transmitted to the micro speaker 6; the preceding stage power amplifier processing module is used for optimizing an audio signal and amplifying a bass signal; and the rear-stage power amplifier processing module is used for integrally amplifying the audio signal.
Optionally, two among the micro speaker 6, one the micro speaker 6 is left channel micro speaker, another the micro speaker 6 is right channel micro speaker, back level power amplifier processing module includes dual track digital power amplifier chip for control the work of left channel micro speaker and right channel micro speaker, analysis audio signal.
To sum up, the utility model provides a speaker back splint has two micro loudspeaker, compares in built-in single micro loudspeaker of cell-phone have more outstanding tone quality and bigger volume, has improved user experience greatly. When the mobile phone is not charged by the loudspeaker back clip, the loudspeaker back clip and the mobile phone transmit audio signals through the Bluetooth module, and the loudspeaker back clip can be regarded as a Bluetooth sound box; when the loudspeaker back clamp charges the mobile phone, the loudspeaker back clamp and the mobile phone transmit audio signals through the conductive interface, and the loudspeaker back clamp integrates the functions of sound emission and charging, so that the endurance time of the mobile phone is prolonged.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a speaker back splint, includes the inside main part that is equipped with the battery, the upper portion of main part is equipped with the clamping piece that is used for the centre gripping cell-phone, the lower extreme of main part is equipped with the supporting shoe that is used for supporting the cell-phone, its characterized in that: a main control board and two micro speakers are arranged in the supporting block, the micro speakers and the storage battery are respectively and electrically connected with the main control board, a conductive interface electrically connected with the main control board is arranged on the supporting block, and the conductive interface is used for connecting a mobile phone to transmit electric energy and audio signals; the main control board is provided with a Bluetooth module and an audio signal processing module electrically connected with the micro loudspeaker, the audio signal processing module and the mobile phone are provided with two switchable signal connection channels, one signal connection channel is through the Bluetooth module and the mobile phone signal connection, and the other signal connection channel is through the conductive interface and the mobile phone signal connection.
2. The speaker clip of claim 1, wherein: the conductive interface is arranged on the top surface of the supporting block, a sound outlet is formed in the bottom surface of the supporting block, and the sound outlet of the micro speaker is opposite to the sound outlet.
3. The speaker clip of claim 2, wherein: the clamping piece is arc-shaped.
4. The speaker clip of claim 1, wherein: the main control board is provided with a main control chip, and the main control chip controls the switching of the audio signal processing module and the mobile phone signal connection channel by detecting the on-off of the conductive interface and the mobile phone electric energy transmission channel.
5. The speaker clip of claim 1, wherein: the main control panel is provided with a charging circuit, and the charging circuit is connected with the conductive interface and the storage battery.
6. The speaker clip of claim 1, wherein: the storage battery is a lithium ion battery.
7. The speaker clip of claim 1, wherein: the audio signal processing module comprises a front-stage power amplifier processing module and a rear-stage power amplifier processing module, and after the Bluetooth module or the conductive interface receives an audio signal from the mobile phone, the audio signal is amplified by the front-stage power amplifier processing module and the rear-stage power amplifier processing module in sequence and then is transmitted to the micro loudspeaker; the preceding stage power amplifier processing module is used for optimizing an audio signal and amplifying a bass signal; and the rear-stage power amplifier processing module is used for integrally amplifying the audio signal.
8. The speaker clip of claim 7, wherein: in the two micro-speakers, one micro-speaker is a left channel micro-speaker, and the other micro-speaker is a right channel micro-speaker.
9. The speaker clip of claim 8, wherein: the rear-stage power amplifier processing module comprises a dual-channel digital power amplifier chip and is used for controlling the left-channel micro loudspeaker and the right-channel micro loudspeaker to work and analyzing audio signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020803572.4U CN211959451U (en) | 2020-05-14 | 2020-05-14 | Loudspeaker back clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020803572.4U CN211959451U (en) | 2020-05-14 | 2020-05-14 | Loudspeaker back clip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211959451U true CN211959451U (en) | 2020-11-17 |
Family
ID=73171624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020803572.4U Active CN211959451U (en) | 2020-05-14 | 2020-05-14 | Loudspeaker back clip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211959451U (en) |
-
2020
- 2020-05-14 CN CN202020803572.4U patent/CN211959451U/en active Active
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