CN210016518U

CN210016518U - Mobile phone with karaoke function

Info

Publication number: CN210016518U
Application number: CN201921389576.6U
Authority: CN
Inventors: 何丹琼; 林仰彬; 郑玉猛; 周毅
Original assignee: Shenzhen Ke Chaoda Science And Technology Ltd
Current assignee: Shenzhen Ke Chaoda Science And Technology Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-02-04
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a cell-phone with K sings function, include the cell-phone body, locate this internal audio mixing PCB board of cell-phone, locate respectively cell-phone body upper portion and lower part and respectively with two loudspeaker and a receiver that audio mixing PCB board electricity is connected, correspond on the audio mixing PCB board two loudspeaker are equipped with two audio amplifier respectively, each audio amplifier all is equipped with multimedia input interface and receiver input interface, multimedia input interface with the multimedia output end electric connection of cell-phone body, receiver input interface with receiver electric connection. The utility model discloses a set up two loudspeaker and receivers on the cell-phone body to this internal two audio amplifier that set up of cell-phone, it is controlled by solitary circuit, realizes that the sound track is controlled around the stereo broadcast and with the natural audio mixing of receiver audio frequency about the multi-media, can realize cell-phone K and song the function, satisfied special colony's user demand.

Description

Mobile phone with karaoke function

Technical Field

The utility model relates to a cell-phone technical field especially relates to a cell-phone with K sings function.

Background

With the rapid development of mobile phone technology, the functions of the mobile phone are more and more, but some functions are realized by means of the mobile phone APP, such as the Karaoke, and in most cases, networking operation is required, so that the use requirements of some people, such as the old, cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cell-phone with K sings function.

The technical scheme of the utility model as follows: the utility model provides a cell-phone with K sings function, include the cell-phone body, locate this internal audio mixing PCB board of cell-phone, locate respectively cell-phone body upper portion and lower part and respectively with two loudspeaker, and a receiver that audio mixing PCB board electricity is connected, correspond on the audio mixing PCB board two loudspeaker are equipped with two audio amplifier respectively, each audio amplifier all is equipped with multimedia input interface and receiver input interface, multimedia input interface with the multimedia output end electric connection of cell-phone body, receiver input interface with receiver electric connection cell-phone body.

Furthermore, a filter circuit connected between the input interfaces of the two telephone receivers and the telephone receivers is also arranged on the sound mixing PCB.

Furthermore, after the two speakers are installed on the mobile phone body, a steel wire mesh enclosure is sleeved outside the two speakers.

Further, each of the audio amplifiers includes: the single-pole double-throw microphone comprises a first multimedia input interface, a second multimedia input interface, a power amplification unit, a single-pole double-throw switch and a receiver input interface, wherein the single-pole double-throw switch is provided with a first input end, a second input end and an output end, the first multimedia input interface is connected with one input end of the power amplification unit, the second multimedia input interface is connected with the first input end of the single-pole double-throw switch, the second input end of the single-pole double-throw switch is connected with the receiver input interface, the output end of the single-pole double-throw switch is connected with the other input end of the power amplification unit, and the output end of the power amplification unit is connected with a loudspeaker.

Furthermore, the first multimedia input interface and the second multimedia input interface of one of the two audio amplifiers are connected with the left channel output end of the multimedia output end of the mobile phone body, and the first multimedia input interface and the second multimedia input interface of the other audio amplifier are connected with the right channel output end of the multimedia output end of the mobile phone body.

Further, the power amplification unit of one audio amplifier adopts a power amplification chip with the model of FT2820, and the power amplification unit of the other audio amplifier adopts a power amplification chip mobile phone body with the model of AW8733 ATQR.

Further, the mobile phone body comprises: the display device comprises a processor, a display driving unit connected with the processor, a display unit connected with the display driving unit, a storage unit connected with the processor and a key unit connected with the processor.

Furthermore, the mobile phone body is also provided with a USB interface connected with the processor and a USB soft rubber plug for protecting the USB interface.

Furthermore, a flashlight lamp is further arranged at the top of the mobile phone body, a push-pull switch is further arranged on the side face of the mobile phone body corresponding to the flashlight lamp, and the flashlight lamp is controlled to be turned on or off.

Further, the processor of the mobile phone is an MTK6261D processor arranged on the PCB.

Adopt above-mentioned scheme, the utility model discloses a cell-phone with K sings function through adopting MTK6261D treater, the inside audio amplifier of cell-phone body and setting up two loudspeaker and a receiver realize the audio mixing effect of multimedia music and receiver audio frequency, realized the function that cell-phone K sings, multimedia music and singing sound are all broadcast through two loudspeaker of rethread after two audio amplifier are developed, realize encircleing the stereophonic, experience well, have satisfied special crowd's demand.

Drawings

Fig. 1 is an internal structure diagram of the mobile phone with karaoke function of the present invention.

Fig. 2 is the utility model discloses whole schematic diagram after the assembly of cell-phone with K sings function.

Fig. 3 is the internal circuit diagram of the power amplifier chip AW8733ATQR of the power amplifier unit of the mobile phone with karaoke function.

Fig. 4 is the internal circuit diagram of the power amplifier chip FT2820 of the power amplifier unit of the mobile phone with karaoke function of the present invention.

Fig. 5 is a block diagram of the power amplification unit of the mobile phone with karaoke function according to the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1 and fig. 2, the utility model provides a cell-phone with K sings function, including cell-phone body 1 locate cell-phone body 1 in the audio mixing PCB board 12, locate respectively 1 upper portion of cell-phone body and lower part and respectively with two loudspeaker 13 and a receiver 14 that audio mixing PCB board 12 electricity is connected, correspond on the audio mixing PCB board 12 two loudspeaker 13 are equipped with two audio amplifier respectively, each audio amplifier all is equipped with multimedia input interface and receiver input interface, multimedia input interface with cell-phone body 1's multimedia output electric connection, receiver input interface with receiver electric connection. Specifically, the sound mixing PCB 12 is further provided with a filter circuit connected between the input interfaces of the two receivers and the receivers, and the filter circuit filters the audio frequency transmitted through the receivers 14, so as to filter other noises except the human voice, thereby improving the definition of the output audio frequency, and improving the experience of singing the song. The filter circuit is implemented by adopting the circuit design in the prior art, and the filter circuit which can realize the function is suitable for the embodiment. Preferably, after the two speakers 13 are mounted on the mobile phone body 1, a steel wire mesh enclosure 15 is sleeved outside the two speakers 13, so as to play a role in dust prevention and protection.

Referring to fig. 5, each of the audio amplifiers includes: the single-pole double-throw microphone comprises a first multimedia input interface, a second multimedia input interface, a power amplification unit, a single-pole double-throw switch and a receiver input interface, wherein the single-pole double-throw switch is provided with a first input end, a second input end and an output end, the first multimedia input interface is connected with one input end of the power amplification unit, the second multimedia input interface is connected with the first input end of the single-pole double-throw switch, the second input end of the single-pole double-throw switch is connected with the receiver input interface, the output end of the single-pole double-throw switch is connected with the other input end of the power amplification unit, and the output end of the power amplification unit is connected with a loudspeaker. The first multimedia input interface and the second multimedia input interface of one of the two audio amplifiers are connected with the left sound channel output end in the multimedia output end of the mobile phone body, and the first multimedia input interface and the second multimedia input interface of the other audio amplifier are connected with the right sound channel output end in the multimedia output end of the mobile phone body. The inconsistency of impedance of a sound source merging circuit and a sound source differential circuit is solved by designing a single-pole double-throw switch to switch the input sound source, so that the effect of natural sound mixing of multimedia audio and receiver audio is realized. Specifically, the input end of the single-pole double-throw switch is connected to the second multimedia input end and the receiver input end of an audio amplifier, the mobile phone body is disconnected from the receiver input end and connected with the second multimedia input end under the condition of only playing multimedia, the audio of the second multimedia input end and the audio of the first multimedia input end are amplified together through the power amplification unit and then played through a loudspeaker, it is worth mentioning that because the first multimedia input interface and the second multimedia interface in one audio amplifier are connected with the left channel of the multimedia output end of the mobile phone body, and the first multimedia input interface and the second multimedia interface in the other audio amplifier are connected with the right channel of the multimedia output end of the mobile phone body, when the mobile phone body plays multimedia audio, the two loudspeakers respectively play the audio of the left and right sound channels, so that the stereo surround effect is improved. When audio is input through the input end of the telephone receiver, the single-pole double-throw switch is disconnected from the second multimedia input end and connected to the input end of the telephone receiver, and the audio at the input end of the telephone receiver and the audio at the first multimedia input end are amplified through the power amplification unit and then are played through the loudspeaker, so that audio mixing of the multimedia audio and the audio of the telephone receiver is realized. Meanwhile, the receiver is also connected to the input end of the power amplification unit of the other audio amplifier through the single-pole double-throw switch of the other audio amplifier, the audio of the receiver is amplified through the two audio amplification units and then is played through the two loudspeakers, the audio mixing effect is achieved with the multimedia audio of the two first multimedia input ends, during audio mixing, the two audio amplifiers are respectively connected with the left and right sound channels of the multimedia output end of the mobile phone body, the receiver audio is also amplified through the two audio amplifiers and then is played, surround stereo sound is strong, and the K song experience of a K singer is greatly increased. The single-pole double-throw switch adopts the prior art to realize the control and the installation, and the single-pole double-throw switch which can achieve the effect is suitable for the embodiment. In this embodiment, the power amplification units of the one audio amplifier and the other audio amplifier may both adopt a power amplification chip with a model number FT2820 or a power amplification chip with a model number AW8733 ATQR. As shown in fig. 4, the power amplification unit of the audio amplifier adopts a power amplifier chip U904 with a model number FT2820, wherein a line 103 is a first multimedia input interface, a line 102 is a second multimedia input interface, and a line 101 is a receiver input interface; as shown in fig. 3, the power amplification unit of the another audio amplifier adopts a power amplifier chip U301 with model AW8733ATQR, the line 104 is a first multimedia input interface, the line 105 is a second multimedia input interface, and the line 106 is a receiver input interface. The power amplifier chips of the two power amplifying units can adopt any one of the two power amplifier chips or the two power amplifier chips for mixed use, and the technical effects can be realized.

The mobile phone body 1 comprises a processor, a display driving unit connected with the processor, a display unit 20 connected with the display driving unit, a storage unit connected with the processor and a key unit 21 connected with the processor, wherein the display unit is used for displaying an operation interface, the key unit is convenient for a user to perform key operation, and the storage unit can be used for storing multimedia audio, such as accompaniment. In this embodiment, the processor of the mobile phone body 1 is an MTK6261D processor disposed on the PCB. Preferably, the mobile phone body 1 is further provided with a USB interface 16 and a USB soft rubber plug 17 for protecting the USB interface 16, multimedia audio can be downloaded through a network, and stored in the mobile phone body 1 through the USB interface 16, and data in the mobile phone body 1 can also be exported through the USB interface 16, one end of the soft rubber plug 17 is connected to the mobile phone body 1, and the other end of the soft rubber plug is fixed in the USB interface 16 in a pluggable manner, so as to protect the USB interface 16. The top of the mobile phone body 1 is further provided with a flashlight lamp 18, the side of the mobile phone body 1 is further provided with a push-pull switch 19 corresponding to the flashlight lamp 18, the flashlight lamp 18 is controlled to be turned on and off, specifically, the push-pull switch 19 is connected with an internal conducting piece, and therefore the purpose that the flashlight 18 is turned on when a circuit is conducted and the flashlight 18 is turned off when the circuit is disconnected is achieved. The switch-controlled flashlight can be switched on and off without opening a mobile phone screen, is convenient to use, and is more convenient for the old to use and operate.

To sum up, the utility model provides a cell-phone with K sings function through set up two loudspeaker and receivers on the cell-phone body to at this internal two audio amplifier that set up of cell-phone, it is controlled by solitary circuit, realize that the sound track is controlled around the stereo broadcast and with the natural audio mixing of receiver audio frequency about the multi-media, realize cell-phone K and song the function, and the audio is good, has the communication function of cell-phone again concurrently, very big user demand who has satisfied special colony.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a cell-phone with K sings function, includes the cell-phone body, its characterized in that still including locate the cell-phone body in the audio mixing PCB board, locate respectively cell-phone body upper portion and lower part and respectively with two loudspeaker and a receiver of audio mixing PCB board electric connection, correspond on the audio mixing PCB board two loudspeaker are equipped with two audio amplifier respectively, each audio amplifier all is equipped with multimedia input interface and receiver input interface, multimedia input interface with the multimedia output electric connection of cell-phone body, receiver input interface with receiver electric connection.

2. The mobile phone with karaoke function as claimed in claim 1, wherein a filter circuit connected between the two receiver input interfaces and the receivers is further disposed on the mixing PCB.

3. The mobile phone with karaoke function as claimed in claim 1, wherein the two speakers are mounted on the mobile phone body and covered with a steel mesh enclosure.

4. The mobile phone with karaoke function as claimed in claim 1, wherein each of said audio amplifiers comprises: the single-pole double-throw microphone comprises a first multimedia input interface, a second multimedia input interface, a power amplification unit, a single-pole double-throw switch and a receiver input interface, wherein the single-pole double-throw switch is provided with a first input end, a second input end and an output end, the first multimedia input interface is connected with one input end of the power amplification unit, the second multimedia input interface is connected with the first input end of the single-pole double-throw switch, the second input end of the single-pole double-throw switch is connected with the receiver input interface, the output end of the single-pole double-throw switch is connected with the other input end of the power amplification unit, and the output end of the power amplification unit is connected with a loudspeaker.

5. The mobile phone with karaoke function as claimed in claim 4, wherein the first multimedia input interface and the second multimedia input interface of one of the two audio amplifiers are connected to the left audio channel output terminal of the multimedia output terminal of the mobile phone body, and the first multimedia input interface and the second multimedia input interface of the other audio amplifier are connected to the right audio channel output terminal of the multimedia output terminal of the mobile phone body.

6. The handset according to claim 5, wherein the power amplifier unit of one audio amplifier is FT2820, and the power amplifier unit of the other audio amplifier is AW8733 ATQR.

7. The mobile phone with karaoke function as claimed in claim 1, wherein said mobile phone body comprises: the display device comprises a processor, a display driving unit connected with the processor, a display unit connected with the display driving unit, a storage unit connected with the processor and a key unit connected with the processor.

8. The mobile phone with a karaoke function according to claim 7, wherein the mobile phone body is further provided with a USB interface connected with the processor and a USB soft rubber plug for protecting the USB interface.

9. The mobile phone with a karaoke function according to claim 7, wherein a flashlight lamp is further arranged at the top of the mobile phone body, a push-pull switch is further arranged on the side surface of the mobile phone body corresponding to the flashlight lamp, and the flashlight lamp is controlled to be turned on and off.

10. The mobile phone with karaoke function as claimed in claim 7, wherein the processor of the mobile phone is MTK6261D processor provided on the PCB.