CN204884554U - Audio playback device - Google Patents

Abstract

The utility model discloses an audio playing device, which belongs to the technical field of audio playing. The audio playback device includes a housing, an audio decoder and a rechargeable battery; the housing is provided with an earphone jack, a power supply interface and a USB interface, and the audio decoder and the rechargeable battery are all arranged inside the housing. The utility model is arranged inside the housing through a rechargeable battery, the rechargeable battery is electrically connected to the audio decoder, and the rechargeable battery is connected to the USB interface, and the power supply interface is connected to the rechargeable battery, so that the rechargeable battery can store electric energy and provide audio decoder and intelligent Device power supply, on the basis of ensuring the sound effect of audio files played by smart devices, integrate power banks and audio decoders into one, reduce the number of devices equipped for smart devices, reduce the volume of devices equipped for smart devices, and reduce the need for users to go out The weight of the luggage that is carried at the time is convenient for the user to carry.

Description

an audio playback device

technical field

The utility model relates to the technical field of audio playback, in particular to an audio playback device.

Background technique

A smart phone refers to a portable mobile terminal with an independent operating system, which can be installed by the user to expand the functions of the mobile phone through the installed software. However, with the increase of functions and the shrinkage of smart phones, the audio playback performance of smart phones is limited. The audio analog output of smart phones is distorted, and the output power is extremely limited. The sound quality of playing audio files directly with smart phones is not high. .

However, some users have high performance requirements for audio playback, and the sound quality of audio files directly played by smart phones can no longer meet the requirements of these users. At this time, users often connect an audio player to the smart phone, and the smart phone will need to play The digital audio information of the audio file is sent to the audio player, and the audio file is played after the digital audio information is processed by the audio player, so as to ensure that the sound quality of the audio file played by the user is high and meet the user's demand for sound quality.

In the process of realizing the utility model, the inventor finds that the prior art has at least the following problems:

In order to ensure high sound quality when playing audio files in smart phones, users often need to carry an audio player with them. When users go out, if the journey is long, in order to ensure that the smart phone is not powered on the way, the user also needs to equip the smart phone with an audio player. For chargers and charging treasures, users need to equip smartphones with many devices, which are relatively large in size and increase the weight of the user's luggage, making it extremely inconvenient to carry.

Utility model content

In order to solve the problem that the existing smart phone needs to be equipped with many devices and the equipment is large in size, which increases the weight of the user's luggage and is extremely inconvenient to carry, the embodiment of the utility model provides an audio playback device. Described technical scheme is as follows:

An audio playback device, the audio playback device includes a casing, an audio decoder and a rechargeable battery;

The shell is provided with an earphone jack, a power jack and a USB (UniversalSerialBus, Universal Serial Bus) interface, and the audio decoder and the rechargeable battery are all arranged inside the shell;

The audio decoder is electrically connected to the rechargeable battery, and the audio decoder is connected to the USB interface, the rechargeable battery is connected to the USB interface, and the power interface is connected to the rechargeable battery;

The earphone interface is used for connecting an external earphone, the USB interface is used for connecting a smart device through a data cable, and the power interface is used for connecting an external power supply.

Optionally, the housing includes a bottom plate, a panel and side walls;

said base plate, said panel and said side walls form an enclosed space;

The earphone jack, the power supply jack, and the USB jack are all arranged on the side wall of the housing.

Optionally, the audio playback device also includes a volume adjustment knob;

The volume adjustment knob is arranged on the housing;

The volume of the audio playback device is adjusted by the volume adjustment knob.

Preferably, the volume adjustment knob is arranged on the panel of the housing;

The edge of the panel of the housing is provided with a groove with an opening, the volume adjusting knob is installed in the groove, and the edge of the volume adjusting knob protrudes from the opening of the groove.

Preferably, the housing is a cuboid, and the intersection of any two surfaces of the housing has a circular arc transition.

Preferably, the earphone jack and the power supply jack are located on two opposite side walls of the casing.

Preferably, a plastic pad is provided on the bottom plate of the housing, and the audio playback device is attached to the smart device through the plastic pad.

Preferably, the audio playback device also includes a power indicator light;

The electric quantity indicator light is arranged on the housing, and the electric quantity indicator light is connected with the rechargeable battery, and the electric quantity in the rechargeable battery is displayed through the electric quantity indicator light.

Optionally, the audio playback device also includes a power amplifier interface;

The power amplifier interface is arranged on the casing, and the audio decoder is connected to a power amplifier device through the power amplifier interface.

Optionally, the audio playback device also includes a headphone gain knob;

The earphone gain knob is arranged on the housing, and the earphone gain knob is connected to the audio decoder;

The earphone gain knob is used to adjust the gain multiple of the earphone.

The beneficial effect of the technical scheme that the utility model embodiment provides is:

The utility model is arranged inside the housing through a rechargeable battery, the rechargeable battery is electrically connected to the audio decoder, and the rechargeable battery is connected to the USB interface, and the power supply interface is connected to the rechargeable battery, so that the rechargeable battery can store electric energy and provide audio decoder and intelligent Device power supply, on the basis of ensuring the sound effect of audio files played by smart devices, integrate power banks and audio decoders into one, reduce the number of devices equipped for smart devices, reduce the volume of devices equipped for smart devices, and reduce the need for users to go out The weight of the luggage that is carried at the time is convenient for the user to carry.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural diagram of an audio playback device provided by an exemplary embodiment of the present invention;

Fig. 2 is a schematic structural diagram of an audio playback device provided by another exemplary embodiment of the present invention;

Fig. 3 is a block diagram of the use state of the audio playback device provided by an exemplary embodiment of the present invention;

Fig. 4 is a schematic top view of Fig. 2;

Fig. 5 is a schematic front view of Fig. 2;

FIG. 6 is a schematic bottom view of FIG. 2 .

in:

1 shell, 11 panel, 12 bottom plate, 13 side wall, 14 plastic pad,

2 switch keys,

3 headphone jacks,

4 power connectors,

5USB interface,

6 volume adjustment knob,

7 grooves,

8 power indicator light,

9 power amplifier interface,

10 gain knobs.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, also can refer to Fig. 2, the utility model embodiment provides a kind of audio playback device, and this audio playback device comprises shell 1, audio frequency decoder (not shown in the figure) and rechargeable battery (in the figure not shown);

The housing 1 is provided with an earphone jack 3, a power supply interface 4 (see FIG. 5) and a USB interface 5, and an audio decoder and a rechargeable battery are arranged inside the housing 1;

As shown in Figure 3, the audio decoder is electrically connected to the rechargeable battery, and the audio decoder is connected to the USB interface 5, the rechargeable battery is connected to the USB interface 5, and the power supply interface 4 (see Figure 5) is connected to the rechargeable battery;

As shown in FIG. 3 , the earphone interface 3 is used for connecting an external earphone, the USB interface is used for connecting a smart device, and the power interface 4 is used for connecting an external power supply.

In the utility model, a rechargeable battery is arranged inside the housing 1, the rechargeable battery is electrically connected to the audio decoder, and the rechargeable battery is connected to the USB interface 5, and the power supply interface 4 is connected to the rechargeable battery, so that the rechargeable battery can store electric energy and decode audio On the basis of ensuring the sound effect of audio files played by smart devices, the power bank and audio decoder are integrated to reduce the number of devices equipped for smart devices and reduce the volume of devices equipped for smart devices. Reduce the weight of the luggage carried by the user when going out, making it easy for the user to carry.

As shown in Figure 4, in the utility model embodiment, the USB interface of the audio decoder and the USB interface of the rechargeable battery are integrated into a USB interface 5, and the USB interface 5 is connected with the smart device through the data line, thereby can pass through the USB interface 5 The digital information of the audio file played in the smart device is sent to the audio decoder, and the electric energy in the rechargeable battery is delivered to the smart device through the USB interface 5 . Wherein, the smart device sends the digital information of the audio file to the audio decoder through the USB interface 5 and the process that the rechargeable battery charges the smart device through the USB interface 5 can be performed separately or simultaneously. The functions of charging and digital information transmission of audio files can be realized through a USB interface 5 , the structure is simple and the consumption of data lines is reduced.

As shown in FIG. 1 , also refer to FIG. 2-FIG. 5 , in the embodiment of the present utility model, the housing 1 includes a bottom plate 12 , a panel 11 and a side wall 13 ;

The bottom plate 12, the panel 11 and the side wall 13 form a closed space;

The earphone interface 3, the power interface 4 and the USB interface are all arranged on the side wall 13 of the housing 1, which has a beautiful structure and is easy to operate.

As shown in Figure 1, also refer to Figure 2, preferably, the housing 1 is a cuboid, and the intersection of any two surfaces of the housing 1 has a circular arc transition, which is convenient for the user to hold and avoids the edges of the housing 1 Injury to the user, wherein, the earphone interface 3 and the power interface 4 are located on the two opposite side walls 13 of the housing 1, which is convenient for internal circuit layout, and if the user plays the audio file while charging the utility model, that is, the utility model The two opposite side walls 13 of the utility model are respectively connected with earphones and data lines, so that the user can hold the utility model with a better balance and improve the user experience.

As shown in Figure 5, in the utility model embodiment, the audio playback device also includes a switch key 2, the switch key 2 is arranged on the side wall 13 of the housing 1, and the switch key 2 is arranged on the housing 1 without an earphone jack 3 and the side wall 13 of the power interface 4, and the position of the switch key 2 needs to be such that when the user normally holds the utility model, the user's thumb can easily press the switch key 2. Certainly, those skilled in the art know that, as shown in FIG. 1 , the switch key can also be arranged on the side wall of the housing 1 where the power interface 3 is arranged.

As shown in Figure 5, also can refer to Figure 1 and Figure 2, in the utility model embodiment, audio playback device also comprises volume adjustment knob 6; Volume adjustment knob 6 is arranged on housing 1; The volume of the audio playback device is convenient for the user to intuitively feel the volume adjustment process of the audio playback device.

As shown in Figure 5, the volume adjustment knob 6 is arranged on the panel 11 of the housing 1; the edge of the panel 11 of the housing 1 is provided with a groove 7 with an opening, the volume adjustment knob 6 is installed in the groove 7, and The edge of the volume adjustment knob 6 protrudes from the opening of the groove 7 . Preferably, the opening of the groove 7 and the switch key 2 are located on the opposite side walls 13 of the housing 1, and the position where the volume adjustment knob 6 protrudes from the opening of the groove 7 basically corresponds to the position of the switch key 2. When the user normally When holding the mobile phone, the volume adjustment knob 6 can be moved by the middle finger to adjust the volume of the audio playback device. The structure is simple, the operation is easy, and the design principles of ergonomics are met.

As shown in Figure 6, also can refer to Figure 1, in the utility model embodiment, audio playback device also comprises electric quantity indicator light 8; Electric quantity indicator light 8 is arranged on housing 1, and electric quantity indicator light 8 is connected with rechargeable battery , the electric quantity in the rechargeable battery is displayed by the electric quantity indicator light 8. Wherein, preferably, the power indicator light 8 is arranged on the side wall 13 of the housing 1 , and the power indicator light 8 and the earphone jack 3 are located on the same side wall 13 of the housing 1 .

As shown in Figure 6, also can refer to Figure 1 and Figure 2, in the utility model embodiment, audio playback device also comprises power amplifier interface 9; amplifier equipment. Wherein, the power amplifier device can be a microphone, and the user transmits a sound signal to the smart device through the microphone and the power amplifier interface 9, such as when the user uses a smart phone to sing online, the sound signal of the user singing is transmitted to the smart phone through the microphone and the power amplifier interface 9.

As shown in Figure 4, in the utility model embodiment, audio playback device also comprises earphone gain knob 10; Earphone gain knob 10 is arranged on the housing 1, and earphone gain knob 10 is connected with audio decoder; Earphone gain knob 10 uses It is used to adjust the gain multiple of the earphone to ensure the sound quality of the earphone.

As shown in FIG. 1 , in the embodiment of the present invention, the audio playback device can be fixed on the back of the smart device, or can be used separately from the smart device. When the utility model is fixed on the back of the smart device, the bottom plate 12 of the housing 1 is provided with a plastic pad 14, and the audio playback device is pasted on the smart device through the plastic pad 14, so as to avoid wearing the smart device and the audio playback device. The bottom plate 12 is in contact with the back of the smart device, and has a beautiful structure and is easy to operate.

The serial numbers of the above-mentioned embodiments of the utility model are only for description, and do not represent the advantages and disadvantages of the embodiments.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. An audio playback device, characterized in that, the audio playback device includes a casing, an audio decoder and a rechargeable battery; The housing is provided with an earphone jack, a power supply interface and a USB interface, and the audio decoder and the rechargeable battery are all arranged inside the housing; The audio decoder is electrically connected to the rechargeable battery, and the audio decoder is connected to the USB interface, the rechargeable battery is connected to the USB interface, and the power interface is connected to the rechargeable battery; The earphone interface is used for connecting an external earphone, the USB interface is used for connecting a smart device through a data cable, and the power interface is used for connecting an external power supply. 2. The audio playback device according to claim 1, wherein the housing comprises a bottom plate, a panel and a side wall; said base plate, said panel and said side walls form an enclosed space; The earphone interface, the power interface and the USB interface are all arranged on the side wall of the housing. 3. The audio playback device according to claim 2, wherein the audio playback device also includes a volume adjustment knob; The volume adjustment knob is arranged on the housing; The volume of the audio file played by the audio playback device is adjusted by the volume adjustment knob. 4. The audio playback device according to claim 3, wherein the volume adjustment knob is arranged on the panel of the housing; The edge of the panel of the housing is provided with a groove with an opening, the volume adjusting knob is installed in the groove, and the edge of the volume adjusting knob protrudes from the opening of the groove. 5 . The audio playback device according to claim 2 , wherein the casing is a cuboid, and the intersection of any two surfaces of the casing has a circular arc transition. 6 . 6. The audio playback device according to claim 5, wherein the earphone jack and the power supply jack are located on two opposite side walls of the casing. 7. The audio playback device according to claim 2, wherein a plastic pad is provided on the bottom plate of the housing, and the audio playback device is attached to the smart device through the plastic pad. 8. The audio playback device according to claim 1, characterized in that, the audio playback device also includes a power indicator light; The electric quantity indicator light is arranged on the housing, and the electric quantity indicator light is connected with the rechargeable battery, and the electric quantity in the rechargeable battery is displayed through the electric quantity indicator light. 9. The audio playback device according to claim 1, wherein the audio playback device further comprises a power amplifier interface; The power amplifier interface is arranged on the casing, and the audio decoder is connected to a power amplifier device through the power amplifier interface. 10. The audio playback device according to any one of claims 1-9, wherein the audio playback device further comprises an earphone gain knob; The earphone gain knob is arranged on the housing, and the earphone gain knob is connected to the audio decoder; The earphone gain knob is used to adjust the gain multiple of the earphone.