CN202269004U - Portable music player - Google Patents

Abstract

The utility model discloses a portable music player, which comprises an integrated box body and a control module and a power supply module located in the box body. The inside of the box body has a left sound cavity, a bass cavity and a right sound cavity connected to each other. The left sound chamber and the right sound chamber are located on the left and right sides of the bass chamber, and the front parts of the left sound chamber and the right sound chamber are respectively provided with a left channel speaker and a right channel speaker, and the box body is also provided with a middle passive radiator, a left passive radiator and a right passive radiator, the middle passive radiator is arranged at the front of the bass cavity, the left passive radiator is arranged at the left The rear part of the sound chamber, the right passive radiator is arranged at the rear part of the right sound chamber. The utility model has the advantages of compact and reasonable structure, small volume and elegant appearance, which can be adapted to be carried on the shoulder or on the waist, and can be placed on the bedside table or the desktop at home.

Description

A portable music player

technical field

The utility model relates to the field of audio-visual equipment, in particular to a portable music player capable of playing current mainstream digital audio, equipped with an audio power amplifier and a sound box, and powered by a battery.

Background technique

Portable audio refers to audio that has a combination of power amplifier and speaker box and is mobile and powered by its own battery. The early products used tape or radio as the sound source, and most of them listened to the sound with earphones. Some of them had built-in speakers, but the power was large and the sound quality was average. With the emergence of digital music (such as MP3, WMA, DRMWMA, OGG, APE, FLAC, WAV, AAC, RM, RMVB, AVI, MKV, WMV, VOB, MP4, 3GP, MPG, MPEG, etc.), especially the recent lossless With the popularity of compressed digital music, digital speakers that can use USB and data card audio sources (commonly known as plug-in speakers) have sprung up in China, and the market prospect is bright. Due to the small size of this type of product, it is difficult to install power amplifiers and speakers to meet the requirements of high-standard sound quality. Although it is easy to carry, it is limited to holding it in the hand, and it is extremely inconvenient to listen to music in the wild. Furthermore, most of the traditional portable speakers only have one set of batteries for power supply, and the working hours are short. Although they can be charged, it is extremely inconvenient to find a place to charge them in the wild.

With the development of society and the rapid advancement of science and technology, urbanites have noticed sub-health problems in their bodies during their busy work. It has become a trend for people to do various physical exercises in groups, especially health exercises and various fitness dances. The first choice for physical fitness. It is the icing on the cake to be able to dance with the music without condensing during fitness. As we all know, the speakers used in outdoor square fitness have requirements for sound pressure. Generally, the sound of digital card speakers is too small to be competent. Although some sports squares have installed large-scale sound reinforcement equipment , but many public welfare services cannot meet individual requirements, and can only enjoy themselves in the prescribed repertoire and dance steps. If a kind of volume is not big, and the sound pressure sound effect is good, and the digital music player that battery life is strong and portable appears, is a good thing that benefits the public undoubtedly. But the problem of sound pressure must be solved. The caliber and power of the speaker and the size of the cabinet are a pair of contradictions, so the structural design and sound characteristics of the cabinet are very important! In particular, how to effectively use the sound at the back of the speaker and the sound at the front to superimpose without producing other noises is a difficult problem for every audio designer. High-level audio and reasonable sound path design are the basis for good sound effects. Most traditional speakers with excellent sound effects adopt phase-inverting design to increase the sound pressure, but they are generally large in size. This technology for increasing sound pressure is obviously not suitable for small portable speakers.

Utility model content

The purpose of the utility model is to provide a music player with scientific and reasonable structure, small volume, elegant appearance, easy to carry and suitable for placing on the bedside table or desktop.

In order to achieve the above object, the utility model provides a portable music player, comprising an integrated box body and a control module and a power module located in the box body, the box body has a left sound cavity, a bass cavity and a The right sound cavity, the left sound cavity and the right sound cavity are located on the left and right sides of the bass cavity, and the front parts of the left sound cavity and the right sound cavity are respectively provided with a left channel speaker and a right channel speaker. A middle passive radiator, a left passive radiator and a right passive radiator are also arranged in the cabinet, the middle passive radiator is arranged at the front of the bass chamber, and the left passive radiator It is arranged at the rear of the left sound chamber, and the right passive radiator is arranged at the rear of the right sound chamber.

Compared with the prior art, the portable music player of the utility model adopts a composite cabinet design, which ensures the strength of the cabinet and reduces the noise of the cabinet. At the same time, the design of dual speakers and three passive radiators is adopted, which effectively broadens the range of the sound field and enhances the low frequency content. The three passive radiators form a 3D physical sound field when they emit sound, which basically fully utilizes the sound sources on the back of the left and right channel speakers, increases the thickness of the sound, and avoids the noise caused by the vibration of the cabinet. The utility model has the advantages of compact and reasonable structure, small volume and elegant appearance, which can be adapted to be carried on the shoulder or on the waist, and can be placed on the bedside table or the desktop at home.

Preferably, an independent cavity isolated from the bass cavity is provided above the bass cavity, the control module is arranged in the independent cavity, and the front or top of the independent cavity is provided with a Display of the control module. The independent cavity is completely isolated from the bass cavity, which effectively solves the problem of air leakage affecting the sound quality of the active audio box. The display screen shows not only the playback information, but in the standby state, it is a standard electronic clock with a powerful music alarm clock function. After the alarm, it will play the music selected by itself for 30 minutes and automatically shut down . In addition, the display screen can also be freely flipped to display the current working status, which is convenient for viewing playback information when carrying it around.

The bottom surface and the back of the box body are respectively provided with anti-vibration pads, which can reduce the vibration noise of the box body during playback, and also make the music player more beautiful as a whole. When the music player of the utility model is used as a bedside table or a desktop audio system, since the bottom surface and the back of the box are provided with anti-vibration pads, the music player can also be placed in a horizontal position in addition to the conventional vertical placement. Orientation (top facing forward). When placed horizontally, the anti-vibration pad on the back of the cabinet not only achieves the purpose of vibration reduction, but also raises the height of the back, and at the same time expands the listening area of the passive bass radiator.

The left and right ends of the box body are respectively provided with shoulder strap connecting parts for connecting shoulder straps, and the back of the box body is provided with waist strap connecting parts for connecting waist straps. The connecting part of the shoulder strap is isolated from the sound cavity of the box body, so there will be no air leakage due to wearing the strap. When the shoulder strap is not used, the two connecting parts of the shoulder strap are basically hidden from the front and rear directions, which is in line with the conventional shoulder strap method and Adds to the aesthetic.

The back of the box body is an inner concave arc surface, which is convenient for fitting with the abdomen of the human body when worn on the waist, and is comfortable and secure.

The back of the box is also provided with a left rear sound outlet corresponding to the left passive radiator and a right rear sound outlet corresponding to the right passive radiator. When carried on the waist, the audio-frequency airflow vibration and the magnetic field of the loudspeaker magnet can be used to massage the lower abdomen of the human body, so as to achieve the purpose of health care while listening to music while walking.

The power supply module is placed at the lower part of the bass chamber and between the left sound chamber and the right sound chamber. The power module can be a battery box, and dry batteries or lithium batteries are installed in the battery box.

The box body is composed of a front panel and a back shell. The back shell is an integral injection molding structure. The walls of the left and right sound chambers are provided with sound-absorbing cotton, which avoids the plastic noise of the plastic box body. , making it basically consistent with the sound quality of wooden speakers.

The left channel speaker, the middle passive radiator and the right channel speaker are respectively fixed on the inner surface of the front panel. The positions of the channel speakers are respectively provided with a left front sound outlet, a middle front sound outlet and a right front sound outlet.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Fig. 1 is a perspective view of an embodiment of the portable music player of the present invention.

Fig. 2 is a vertically placed front view of the portable music player shown in Fig. 1 .

Fig. 3 is a front view of the horizontal arrangement of the portable music player shown in Fig. 1 .

Fig. 4 is a rear view of the portable music player shown in Fig. 1 .

Fig. 5 is a bottom view of the portable music player shown in Fig. 1 .

Fig. 6 is a right side view of the portable music player shown in Fig. 1 .

Fig. 7 is a perspective view of the portable music player shown in Fig. 1 with the net cover hidden.

Fig. 8 is a schematic diagram of the internal structure of the portable music player shown in Fig. 1 with the front panel hidden.

FIG. 9 is a schematic structural view of the rear case of the portable music player shown in FIG. 1 .

FIG. 10 is a schematic view of the inner surface of the front panel portion of the portable music player shown in FIG. 1 .

Fig. 11 is a diagram of the portable music player shown in Fig. 1 in use on the shoulder.

Fig. 12 is a diagram of the portable music player shown in Fig. 1 in use on the waist.

Detailed ways

As shown in Figures 1 to 10, a preferred embodiment of the utility model portable music player includes an integrated box body 1 and a left channel speaker 21 located in the box body 1, a middle passive radiator 22, Right channel speaker 23, left passive radiator 24, right passive radiator 25, power supply module 3, control module 4, button module 5, etc. The box body 1 is composed of a front panel 11 and a rear shell 12. The rear shell 12 is an integral injection molding structure. The outer surface of the front panel 11 is provided with a rigid mesh cover 9 for preventing foreign matter from damaging the speaker. There are left sound chamber 13, bass chamber 14 and right sound chamber 15 that communicate with each other inside casing 1, and left sound chamber 13 and right sound chamber 14 are positioned at the left and right sides of bass chamber 14, left channel speaker 21 and right channel speaker 23 are respectively arranged at the front of the left sound chamber 13 and the right sound chamber 15, the middle passive radiator 22 is arranged at the front of the bass chamber 14, the left passive radiator 24 is arranged at the rear of the left sound chamber 13, and the right passive radiator 24 is arranged at the rear of the left sound chamber 13. The source radiator 25 is disposed at the rear of the right sound cavity 15 . The walls of the left sound chamber 13 and the right sound chamber 15 are provided with sound-absorbing cotton, which avoids the plastic noise of the plastic box and makes it basically consistent with the sound quality of the wooden sound box. In this embodiment, the power supply module 3 is a battery box, and dry batteries or lithium batteries can be installed in the battery box for power supply. between.

As shown in FIG. 7 and FIG. 10 , the left channel speaker 21 , the middle passive radiator 22 and the right channel speaker 23 are respectively fixed on the inner surface of the front panel 11 . The front panel 11 is respectively provided with a left front sound outlet 111, a middle front sound outlet 112 and a right front sound outlet at positions corresponding to the left channel speaker 21, the middle passive radiator 22 and the right channel speaker 23. 113.

As shown in Fig. 8 to Fig. 10, an independent cavity 16 isolated from the bass cavity 14 is provided above the bass cavity 14, and the control module 4 is arranged in the independent cavity 16, and the independent cavity 16 can be in the front A front display screen 6 connected to the control module 4 is provided on the top, and a top display screen 7 connected to the control module 4 may also be provided on the top as another option. The independent cavity 16 is completely isolated from the bass cavity 14, which effectively solves the problem that the air leakage of the active audio box affects the sound quality. What the front display screen 6 or the top display screen 7 shows is not only the playback information, but in standby mode, it is a standard electronic clock with a powerful music alarm clock function, after the alarm will play 30 minutes of self-selected Music and automatically shut down. In addition, the front display screen 6 or the top display screen 7 can also be freely flipped to display the current working status, which is convenient for carrying and watching playback information in any direction during playback.

As shown in Fig. 2 and Fig. 3, the bottom surface and the back side of the box body 1 are respectively provided with a bottom anti-vibration pad 17 and a back anti-vibration pad 18, which can reduce the vibration noise of the box body 1 during playback, and also make the overall music player more compact. For aesthetics. When the music player of the present utility model is used as a bedside table or a desktop audio system, since the bottom surface and the back of the box body 1 are provided with anti-vibration pads, the music player adopts the vertical placement method shown in Fig. 2 , you can also use the horizontal placement as shown in Figure 3 (the top is facing forward). When placed horizontally, the back anti-vibration pad 18 on the back of the cabinet not only achieves the purpose of vibration reduction, but also raises the height of the back, and also expands the listening area of the passive bass radiator.

As shown in Fig. 11 and Fig. 12, the left and right ends of the box body 1 are respectively provided with shoulder strap connecting parts 81, 82 for connecting the shoulder straps 8, and the back side of the box body 1 is provided with a waist strap for connecting the waist strap 9. Belt connection parts 91,92. The shoulder strap connecting parts 81, 82 are isolated from the sound cavity of the box body 1, so there is no air leakage due to wearing the straps. When the shoulder strap 8 is not used, the two shoulder strap connecting parts 81, 82 are basically viewed from the front and rear directions of the box body 1 It is hidden, which not only conforms to the conventional shoulder strap method but also increases the aesthetic feeling.

As shown in FIG. 3 and FIG. 4 , the back of the box body 1 is further provided with a left rear sound outlet 241 corresponding to the left passive radiator 24 and a right rear sound outlet 251 corresponding to the right passive radiator 25 . When carried on the waist, the audio-frequency airflow vibration and the magnetic field of the loudspeaker magnet can be used to massage the lower abdomen of the human body, so as to achieve the purpose of health care while listening to music while walking. In addition, the back 19 of the box body 1 is a concave arc surface, which is convenient to fit the abdomen of the human body when worn on the waist, comfortable and secure.

The portable music player of the utility model adopts a composite cabinet design, which ensures the strength of the cabinet and reduces the noise of the cabinet. At the same time, the design of dual speakers and three passive radiators is adopted, which effectively broadens the range of the sound field and enhances the low frequency content. The three passive radiators form a 3D physical sound field when they emit sound, which basically fully utilizes the sound sources on the back of the left and right channel speakers, increases the thickness of the sound, and avoids the noise caused by the vibration of the cabinet. The utility model has the advantages of compact and reasonable structure, small volume and elegant appearance, which can be adapted to be carried on the shoulder or on the waist, and can be placed on the bedside table or the desktop at home.

Claims (9)

1. A portable music player, comprising an integrated box body and a control module and a power supply module positioned in the box body, the inside of the box body has a left sound cavity, a bass cavity and a right sound cavity connected to each other, the left sound cavity The cavity and the right sound cavity are located on the left and right sides of the bass cavity, and the front parts of the left sound cavity and the right sound cavity are respectively provided with a left channel speaker and a right channel speaker, and it is characterized in that: the box is also provided with There is a center passive radiator positioned at the front of the bass chamber, a left passive radiator positioned at the front of the The rear part of the left sound chamber, the right passive radiator is arranged at the rear part of the right sound chamber. 2. The portable music player according to claim 1, characterized in that: the top of the bass cavity is provided with an independent cavity isolated from the bass cavity, the control module is arranged in the independent cavity, the The front or top of the independent cavity is provided with a display screen connected to the control module. 3. The portable music player according to claim 2, characterized in that: the bottom surface and the back of the box body are respectively provided with anti-vibration pads. 4. The portable music player according to claim 1, characterized in that: the left and right ends of the box body are respectively provided with shoulder strap connecting parts for connecting shoulder straps, and the back side of the box body is provided with straps for connecting waist straps. The waist strap connection part of the belt. 5. The portable music player according to claim 4, characterized in that: the back of the box body is a concave arc surface. 6. The portable music player according to claim 4, characterized in that: the back side of the box body is also provided with a left rear sound hole corresponding to the left passive radiator and a right hole corresponding to the right passive radiator. Rear sound hole. 7. The portable music player according to claim 1, wherein the power module is placed under the bass chamber, and is located between the left and right chambers. 8. The portable music player according to claim 1, characterized in that: the box body is composed of a front panel and a rear shell, the rear shell is an integral injection molding structure, the left sound chamber and the right sound chamber Sound-absorbing cotton is arranged on the cavity wall of the cavity. 9. The portable music player according to claim 1, wherein the left channel speaker, the middle passive radiator and the right channel speaker are respectively fixed on the inner surface of the front panel, and the front panel A left front sound outlet, a middle front sound outlet and a right front sound outlet are respectively provided at positions corresponding to the left channel speaker, the middle passive radiator and the right channel speaker.

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