A multifunctional speaker

Abstract

The present application relates to a multifunctional speaker, and to the technical field of electronic equipment. The multifunctional speaker in the present application includes a shell, in which a circuit board and a battery are fixedly arranged; a first sound amplification through hole is arranged at the upper end of the shell, and a sound amplification speaker facing the first sound amplification through hole is fixedly arranged in the shell; a second sound amplification through hole is arranged at the lower end of the shell, and a diaphragm assembly is fixedly arranged at the second sound amplification through hole in the shell; a display screen and a control button group are arranged on the front side of the shell, and a charging interface for charging the battery is arranged on the back side of the shell; the circuit board includes a main board and a key board both arranged vertically, the key board is close to the front side of the shell, the main board is close to the back side of the shell, and the diaphragm assembly is located between the main board and the key board. The present application optimizes the spatial layout of various components in the shell, so that its structural layout is reasonable and more compact, thereby making the entire multifunctional speaker more compact and beautiful, and easy to carry and move.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a multifunctional speaker. Background Art

[0002] A speaker generally refers to a device that converts audio signals into sound in an audio system. As the terminal of the entire audio system, it converts audio electrical energy into corresponding sound energy and radiates the sound signal into space. The sound-generating element in the speaker is a speaker, also known as a loudspeaker. The speaker is fixed to the speaker body, and the speaker body has a sound outlet. The speaker emits sound toward the sound outlet of the speaker body. Speakers have gradually become one of the indispensable electronic products in people's lives. Traditional speakers can generally only provide music playback functions, and their functions are too single, which affects their further promotion and popularization; and traditional speakers are either large in size or have poor sound quality. With the development of society and the improvement of living standards, people have higher and higher requirements for audio-visual electronic products, and the types of speakers are becoming more and more diverse, with more and more complete functions, and the sound effects are gradually improving. Small-volume speakers have very good portability and are gradually valued and accepted by consumers.

[0003] In the related technology, the smart speaker includes a shell, a sound-emitting element, a circuit board and a potentiometer. A accommodating cavity is opened in the shell. The circuit board is fixedly connected to the wall of the accommodating cavity. The sound-emitting element is fixedly connected to the circuit board. The sound-emitting element is used to emit a sound signal. The potentiometer is welded and fixedly connected to the circuit board. The potentiometer is used to control the volume of the sound signal emitted by the sound-emitting element. The smart speaker can be wirelessly connected to the mobile phone through the wireless connection module on the circuit board.

[0004] The speaker functions in the related technology are still not rich enough, the internal structure layout is not reasonable enough, the overall structure is not compact enough, and the sound quality effect still has room for further improvement. Summary of the invention

[0005] In order to improve the compactness of the speaker, enhance its sound quality and further enrich its functions, the present application provides a multifunctional speaker.

[0006] The multifunctional speaker provided in this application adopts the following technical solution:

[0007] A multifunctional sound box comprises a shell, wherein a circuit board and a storage battery are fixedly arranged in the shell;

[0008] The upper end of the housing is provided with a first sound amplification through hole, and a sound amplification speaker facing the first sound amplification through hole is fixedly arranged in the housing; the lower end of the housing is provided with a second sound amplification through hole, and a diaphragm assembly is fixedly arranged in the housing at the second sound amplification through hole;

[0009] The front side of the housing is provided with a display screen and a control button group, and the back side of the housing is provided with a charging interface for charging the battery;

[0010] The battery, display screen, charging interface and control button group are all electrically connected to the circuit board;

[0011] The circuit board comprises a main board and a key board both arranged vertically, the key board is close to the front side of the shell, the main board is close to the rear side of the shell, and the diaphragm assembly is located between the main board and the key board.

[0012] By adopting the above technical solution, a diaphragm assembly is arranged in the shell of the multi-functional speaker to improve the sound effect of the speaker; the diaphragm assembly and the loudspeaker are arranged separately and independently, and the loudspeaker is fixed on the upper side of the shell and emits sound upward; the diaphragm assembly is located on the lower side of the shell and emits sound downward to reduce the interference of sound waves between the two; and the diaphragm assembly is located between the main board and the key board, and the area is relatively closed, so that the sound waves of the diaphragm assembly are more concentrated toward the second sound amplification through hole; in the present application, the spatial layout of various components in the shell is optimized, so that its structural layout is reasonable and more compact, thereby making the entire multi-functional speaker more compact and beautiful, and easy to carry and move.

[0013] The multifunctional speaker in this application can display a variety of different time dial interfaces on the display screen, set alarms, play music and play small games. The display screen can display song names and lyrics, and can also view album pictures. The entire speaker can also be used as a radio; the control button group can be used to play small games, turn on and off, adjust the volume, select and switch music, and switch various interfaces on the display screen. It has rich functions, is easy to operate, and is very interesting.

[0014] Optionally, the main board is electrically connected to the keypad, the charging port is fixedly connected to the main board, and a telescopic antenna electrically connected to the main board is provided near the upper end of the back side of the shell; the display screen and the control button group are directly connected to the keypad.

[0015] By adopting the above technical solution, the telescopic antenna can receive more signals, making it easier for the multifunctional speaker to be used as a radio. The main board and the keypad are arranged at different positions at the front and rear of the shell, corresponding to different electrical components at the front and rear of the shell, respectively, reducing the connection of internal circuits, further optimizing the spatial layout, improving the compactness of the overall structure, and facilitating assembly.

[0016] Optionally, the diaphragm assembly includes a mounting base in the form of an annular cylinder, with two ends of the mounting base facing the main board and the key board respectively, and passive diaphragms are symmetrically fixed at both ends of the mounting base; a sound outlet hole connected to the area between the two passive diaphragms in the mounting base is opened on the lower side of the mounting base, and the sound outlet hole faces the second sound amplification through hole; a plurality of supporting feet are also fixed on the lower side of the outer shell.

[0017] By adopting the above technical solution, the two passive diaphragms and the main board and the key board are all arranged vertically, ensuring the compactness of the internal space; the two passive diaphragms are located between the main board and the key board, and there is enough gap between the two passive diaphragms and the main board and the key board, and there is also enough space between the two passive diaphragms to form a sound wave output channel facing the second sound amplification through hole, which not only ensures high-quality output of sound quality, but also reduces vibration damage to the circuit board.

[0018] Optionally, the shell includes a rear shell cover, a front end plate, a front shell cover and a transparent glass cover shell, the front end plate and the front shell cover are fixedly connected to the rear shell cover on all sides, and the display screen and the keypad are both arranged on the front end plate; the glass cover shell is also fixedly connected to the rear shell cover on all sides, and the display screen and the keypad are located between the front end plate and the glass cover shell; the front shell cover and the glass cover shell are both provided with a first through hole for the control button group to pass through; the front shell cover is located between the front end plate and the glass cover shell and is covered on the front end plate, and the front shell cover is provided with a mounting hole for embedding the display screen.

[0019] By adopting the above technical solution, the assembly of various components is facilitated, while at the same time good protection can be provided for the internal components of the speaker without affecting the normal functions of the speaker.

[0020] Optionally, the rear inner wall of the rear shell cover has a plurality of first connecting columns for fixing the main board and the mounting seat; the left and right inner walls of the rear shell cover have a plurality of second connecting columns for fixing the front end plate; the left and right inner walls of the rear shell cover are also provided with a plurality of plug-in limit strips, and the front end plate is provided with plug-in limit holes around it that cooperate with the plug-in limit strips.

[0021] By adopting the above technical solution, the assembly connection between the rear shell cover, the main board and the mounting seat, as well as the rear shell cover and the front end plate is facilitated, while the stability and reliability of the connection between the shell cover, the main board and the mounting seat, as well as the rear shell cover and the front end plate are ensured.

[0022] Optionally, a step groove is provided on the four edges of the inner wall of the rear shell cover, a step surface matching the step groove is provided on the four edges of the glass cover shell, and the step surface of the glass cover shell is fitted on the groove wall of the step groove; a snap-fit ​​key is also provided on the step surface of the glass cover shell, and a snap-fit ​​groove matching the snap-fit ​​key is provided on the groove wall of the step groove of the rear shell cover.

[0023] By adopting the above technical solution, the glass cover can be conveniently snap-fitted with the rear cover, which is easy to assemble, and the snap-fit ​​key and the snap-fit ​​groove are used to achieve position limiting, which is stable and reliable and not easy to fall off.

[0024] Optionally, the mainboard is provided with a WIFI network connection module and a Bluetooth connection module; the mainboard is also provided with a memory card slot module, and a jack corresponding to the memory card slot module is opened on the lower side of the shell.

[0025] By adopting the above technical solution, the multifunctional speaker can be connected to the Internet using the WIFI network connection module, can also be connected to a mobile phone through the Bluetooth connection module, and can also play music, videos or pictures by inserting a memory card, with richer functions.

[0026] Optionally, the control button group includes a knob key for controlling the switch and adjusting the volume, a button key for controlling the return of the display screen interface, and a rocker key for selecting the display screen interface; the key panel is respectively provided with potentiometers corresponding to the knob key, button key and rocker key.

[0027] By adopting the above technical solution, the three groups of buttons are relatively simple, have rich functions, and are easy to operate.

[0028] Optionally, the front end panel has a third connecting column passing through the key panel, and a fixing seat is provided on the side of the key panel facing the glass cover, and the fixing seat is fixedly connected to the third connecting column of the front end panel by a fixing screw; one side of the fixing seat is covered on the potentiometers corresponding to the knob key, button key and rocker key, and the other side of the fixing seat has a protective sleeve inserted into the first through hole of the glass cover, and three second through holes for the knob key, button key and rocker key to pass through are respectively opened on the fixing seat along the length direction of the protective sleeve.

[0029] By adopting the above technical solution, the fixing seat can protect the potentiometer on the keypad, and at the same time, the protective sleeve on the fixing seat limits the knob key, button key and rocker key circumferentially, protecting the knob key, button key and rocker key while limiting their excessive movement amplitude and damaging the potentiometer; the design of the above third connecting column also facilitates the installation and connection of the fixing seat.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The multifunctional speaker in the present application is provided with a mutually independent loudspeaker and a diaphragm assembly in the outer shell, and the two emit sound in different directions, thereby reducing the interference of sound waves therebetween and improving the sound effect of the speaker; and the diaphragm assembly is located between the main board and the key board, and the area is relatively closed, so that the sound waves of the diaphragm assembly are more concentrated and diffused outward.

[0032] 2. In this application, the spatial layout of each component in the shell is optimized, making its structural layout reasonable and more compact, thereby making the entire multi-functional speaker more compact and beautiful, and easy to carry and move.

[0033] 3. The display screen provided in the present application can realize a variety of visual display functions. The control button group can be used to play small games, and can also be used to turn the machine on and off, adjust the volume, select and switch music, and switch various interfaces on the display screen. It is rich in functions, easy to operate, and interesting.

[0034] 4. In this application, by optimizing the connection structure of each component, the entire product is easy to assemble, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a first stereoscopic structural schematic diagram of the multifunctional speaker in this application.

[0036] Figure 2 It is a schematic diagram of the first exploded structure of the multifunctional speaker in this application.

[0037] Figure 3 It is a second exploded structural schematic diagram of the multifunctional speaker in this application.

[0038] Figure 4 It is a second stereoscopic structural diagram of the multifunctional speaker in this application.

[0039] Figure 5 It is a schematic cross-sectional view of the multifunctional speaker in this application.

[0040] Figure 6 yes Figure 5 Schematic diagram of the local enlarged structure at point A in the middle.

[0041] In the figure:

[0042] 10. Shell; 11. First sound amplification through hole; 12. Second sound amplification through hole; 13. Rear shell; 131. First connecting column; 132. Second connecting column; 133. Insertion limit strip; 134. Step groove; 135. Clamping groove; 14. Front end plate; 141. Insertion limit hole; 142. Third connecting column; 15. Front shell; 151. Mounting hole; 16. Glass cover shell; 161. Step surface; 162. Clamping key; 17. First through hole; 18. Insertion hole; 19. Support foot;

[0043] 20. Circuit board; 21. Main board; 22. Key board; 23. Potentiometer; 231. Potentiometer chassis; 232. Potentiometer joystick; 24. Memory card slot module;

[0044] 30. Battery;

[0045] 40. Loudspeaker;

[0046] 50, diaphragm assembly; 51, mounting seat; 511, sound outlet; 52, passive diaphragm;

[0047] 60. Display screen;

[0048] 70. Control button group; 71. Knob key; 72. Button key; 73. Rocker key; 731. Hand-held rocker; 732. Connecting rod; 733. Soft rubber sleeve; 734. Fixing piece; 7341. Limiting groove; 74. Fixing seat; 741. Protective sleeve; 742. Second through hole;

[0049] 80. Charging port;

[0050] 90. Telescopic antenna. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0052] Reference Figure 1 and Figure 2As shown, the multifunctional speaker in the present application comprises a housing 10 , and a plurality of supporting feet 19 are fixedly disposed on the lower side of the housing 10 . The housing 10 includes a rear shell cover 13, a front end plate 14, a front shell cover 15 and a transparent glass cover shell 16 which are arranged in sequence from the rear side to the front side. The front end plate 14 and the front shell cover 15 are fixedly connected to the rear shell cover 13 on all sides. The left and right inner walls of the rear shell cover 13 are provided with a plurality of second connecting columns 132 for fixing the front end plate 14; the left and right inner walls of the rear shell cover 13 are also provided with a plurality of plug-in limit strips 133, and the front end plate 14 is provided with plug-in limit holes 141 which match the plug-in limit strips 133. When the rear shell cover 13 is fixedly connected and assembled with the front end plate 14, the plug-in limit strips 133 on the rear shell cover 13 are plugged into the plug-in limit holes 141 on the front end plate 14, and at the same time, a plurality of fixing screws pass through the screw holes on the front end plate 14 and are screwed on the corresponding second connecting columns 132 to realize the fixed connection between the rear shell cover 13 and the front end plate 14; the front shell cover 15 is then fixedly connected to the front end plate 14 by fixing screws.

[0053] Reference Figure 2 and Figure 3 As shown, the periphery of the glass cover shell 16 is also fixedly connected to the periphery of the rear shell cover 13. Specifically, a step groove 134 is provided on the periphery of the inner wall of the rear shell cover 13, and a step surface 161 matching the step groove 134 is provided on the periphery of the glass cover shell 16. The step surface 161 of the glass cover shell 16 fits on the groove wall of the step groove 134. A snap-fit ​​key 162 is also provided on the step surface 161 of the glass cover shell 16, and a snap-fit ​​groove 135 matching the snap-fit ​​key 162 is provided on the groove wall of the step groove 134 of the rear shell cover 13. When the rear shell cover 13 and the glass cover shell 16 are fixedly connected and assembled, the periphery of the glass cover shell 16 is embedded in the step groove 134 of the rear shell cover 13, and the snap-fit ​​key 162 on the glass cover shell 16 is snap-fitted into the snap-fit ​​groove 135 of the rear shell cover 13 to achieve snap-fit ​​assembly.

[0054] Reference Figure 2 , Figure 3 and Figure 4As shown, a circuit board 20 and a battery 30 are fixedly arranged in the housing 10; a first sound amplification through hole 11 is arranged at the upper end of the housing 10, and a sound amplification speaker 40 facing the first sound amplification through hole 11 is fixedly arranged in the housing 10; a second sound amplification through hole 12 is arranged at the lower end of the housing 10, and a diaphragm assembly 50 is fixedly arranged in the housing 10 at the second sound amplification through hole 12; a display screen 60 and a control button group 70 are arranged on the front side of the housing 10, and a charging interface 80 for charging the battery 30 is arranged on the back side of the housing 10; the battery 30, the display screen 60, the charging interface 80 and the control button group 70 are all electrically connected to the circuit board 20; the circuit board 20 includes a main board 21 and a key board 22 both of which are arranged vertically, the main board 21 is electrically connected to the key board 22, and the key board 22 is close to the front side of the housing 10 and the key board 22 is pressed. The key panel 22 is fixedly connected to the front end panel 14, and the main board 21 is close to the rear side of the outer shell 10. The rear inner wall of the rear shell cover 13 is provided with a plurality of first connecting columns 131 for fixing the main board 21; the main board 21 is fixedly connected to the first connecting columns 131 by screws, and the display screen 60 and the control button group 70 are directly connected to the key panel 22; the main board 21 and the key panel 22 are arranged at different positions in the front and back of the shell, corresponding to different electrical components in the front and back of the shell, respectively, to reduce the connection of internal circuits; the charging port 80 is fixedly connected to the main board 21, and a telescopic antenna 90 electrically connected to the main board 21 is also provided on the back side of the outer shell 10 near the upper end, and the telescopic antenna 90 passes through the outer shell 10 and extends out of the outer shell 10; the telescopic antenna 90 can receive more signals, so that the multi-functional speaker can be used as a radio. The diaphragm assembly 50 is located between the main board 21 and the key board 22, and the front end board 14 is located between the key board 22 and the diaphragm assembly 50. This facilitates the electrical connection between the display screen 60 and the control button group 70 and the key board 22. At the same time, the front end board 14 can isolate and protect the key board 22, effectively reducing the damage to the key board 22 caused by the vibration of the diaphragm assembly 50.

[0055] Combination Figure 5As shown, the diaphragm assembly 50 includes a mounting seat 51 in the shape of an annular cylinder, and the rear inner wall of the rear shell 13 also has a first connecting column 131 for fixing the mounting seat 51; the mounting seat 51 is fixedly connected to the first connecting column 131 by screws. The two ends of the mounting base 51 are respectively opposite to the main board 21 and the key board 22, and passive diaphragms 52 are symmetrically fixed at both ends of the mounting base 51; a sound outlet hole 511 connected to the area between the two passive diaphragms 52 in the mounting base 51 is opened on the lower side of the mounting base 51, and the sound outlet hole 511 is opposite to the second sound amplification hole 12; the two passive diaphragms 52 and the main board 21 and the key board 22 are vertically arranged to ensure the compactness of the internal space; the two passive diaphragms 52 are located between the main board 21 and the key board 22, and there is enough gap between the two passive diaphragms 52 and the main board 21 and the key board 22, and there is also enough space between the two passive diaphragms 52 to form a sound wave output channel facing the second sound amplification hole 12, which not only ensures the high-quality output of sound quality, but also reduces the vibration damage to the circuit board 20.

[0056] Combination Figure 5 As shown, in the present application, the display screen 60 and the keypad 22 are both arranged on the front end plate 14, and the display screen 60 and the keypad 22 are located between the front end plate 14 and the glass cover shell 16; the front shell cover 15 and the glass cover shell 16 are both provided with a first through hole 17 for controlling the key group 70 to pass through; the front shell cover 15 is located between the front end plate 14 and the glass cover shell 16 and is covered on the front end plate 14, and the front shell cover 15 is provided with a mounting hole 151 for embedding the display screen 60.

[0057] The main board 21 in this application is provided with a WIFI network connection module and a Bluetooth connection module; Figure 3 and Figure 4 As shown, a memory card slot module 24 is also provided on the main board 21, and a socket 18 corresponding to the memory card slot module 24 is provided on the lower side of the shell 10; the multifunctional speaker can be connected to the Internet using the WIFI network connection module, can also be connected to a mobile phone through the Bluetooth connection module, and can also play music, videos or pictures by inserting a memory card, and has rich functions.

[0058] Reference Figure 2 , Figure 3 and Figure 5As shown, the control button group 70 includes a knob key 71 for controlling the switch and adjusting the volume, a button key 72 for controlling the return of the display screen interface, and a rocker key 73 for selecting the display screen interface; the key board 22 is provided with potentiometers 23 corresponding to the knob key 71, the button key 72, and the rocker key 73. The front end plate 14 has a third connecting column 142 passing through the key board 22, and a fixing seat 74 is provided on the side of the key board 22 facing the glass cover 16. The fixing seat 74 is fixedly connected to the third connecting column 142 of the front end plate 14 by fixing screws; one side of the fixing seat 74 is covered on the potentiometers 23 corresponding to the knob key 71, the button key 72, and the rocker key 73, and the other side of the fixing seat 74 has a protective sleeve 741 inserted into the first through hole 17 of the glass cover 16. The fixing seat 74 Three second through holes 742 for the knob key 71, the button key 72 and the rocker key 73 to pass through are respectively opened along the length direction of the upper edge of the protective sleeve 741. The fixing seat 74 is used to protect the potentiometer 23 on the key plate 22. At the same time, the protective sleeve 741 on the fixing seat 74 limits the knob key 71, the button key 72 and the rocker key 73 circumferentially, protecting the knob key 71, the button key 72 and the rocker key 73 while limiting their excessive movement amplitude to prevent damage to the potentiometer 23.

[0059] Reference Figure 5 and Figure 6 As shown, the rocker key 73 in the present application includes a handheld rocker 731, a connecting rod 732, a soft rubber sleeve 733, and a fixing part 734. The potentiometer 23 corresponding to the rocker key 73 on the keypad 22 includes a potentiometer chassis 231 and a potentiometer rocker 232 located in the middle of the potentiometer chassis 231 and facing the front side of the housing 10; the potentiometer chassis 231 is square, and the potentiometer chassis 231 is welded on the side of the keypad 22 through pins; the fixing seat 74 is close to the case plate, the connecting rod 732 is inserted into the second through hole 742, one end of the handheld rocker 731 extends into the second through hole 742 and is fixedly connected to one end of the connecting rod 732, and a fixing part 734 is fixed in the second through hole 742 of the fixing seat 74, and the fixing part 734 is sleeved on the potentiometer 23 for limiting the potentiometer 23. The potentiometer 23 is fixed in position; the potentiometer rocker 232 of the potentiometer 23 passes through the fixing piece 734 and extends into the second through hole 742 to be fixedly connected with the other end of the connecting rod 732; the potentiometer chassis 231 is square, and the fixing piece 734 is provided with a limiting groove 7341 matching the shape of the potential chassis 231 on one side facing the potential chassis 231, and the potential chassis 231 is embedded in the limiting groove 7341, so that the potential chassis 231 of the potentiometer 23 is limited and fixed all around, reducing the shaking or movement of the potentiometer 23, making the potentiometer 23 more stable, and reducing the possibility of the potentiometer 23 falling off or being damaged during frequent use.

[0060] The implementation principle is as follows: in the present application, a diaphragm assembly 50 is arranged in the outer shell 10 of the multi-functional speaker to improve the sound effect of the speaker; the diaphragm assembly 50 and the loudspeaker 40 are arranged separately and independently, and the loudspeaker 40 is fixed on the upper side of the outer shell 10 and emits sound upward; the diaphragm assembly 50 is located on the lower side of the outer shell 10 and emits sound downward to reduce the interference of sound waves between the two; and the diaphragm assembly 50 is located between the main board 21 and the key board 22, and the area is relatively closed, so that the sound waves of the diaphragm assembly 50 are more concentrated toward the second sound amplification through hole 12; in the present application, the various components in the outer shell 10 optimize the spatial layout, so that its structural layout is reasonable and more compact, thereby making the entire multi-functional speaker more compact and beautiful, and easy to carry and move.

[0061] The multifunctional speaker in the present application can display a variety of different time dial interfaces on the display screen 60, can set alarms, play music and play small games, the display screen 60 can display song names and lyrics, can also view album pictures, and the entire speaker can also be used as a radio; the control button group 70 can be used to play small games, and can also be used to turn on and off, adjust the volume, select and switch music, and switch various interfaces on the display screen 60. It is rich in functions, easy to operate, and interesting.

[0062] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional speaker, comprising a housing (10), wherein a circuit board (20) and a storage battery (30) are fixedly arranged in the housing (10); It is characterized in that The upper end of the housing (10) is provided with a first sound amplification through hole (11), and a sound amplification speaker (40) facing the first sound amplification through hole (11) is fixedly arranged in the housing (10); the lower end of the housing (10) is provided with a second sound amplification through hole (12), and a diaphragm assembly (50) is fixedly arranged in the housing (10) at the location of the second sound amplification through hole (12); The front side of the housing (10) is provided with a display screen (60) and a control button group (70), and the back side of the housing (10) is provided with a charging interface (80) for charging the storage battery (30); The storage battery (30), display screen (60), charging interface (80) and control button group (70) are all electrically connected to the circuit board (20); The circuit board (20) comprises a main board (21) and a key board (22) both of which are arranged vertically, the key board (22) is close to the front side of the housing (10), the main board (21) is close to the rear side of the housing (10), and the diaphragm assembly (50) is located between the main board (21) and the key board (22); The diaphragm assembly (50) comprises a mounting seat (51) in the shape of an annular cylinder, the two ends of the mounting seat (51) respectively facing the main board (21) and the key board (22), and the two ends of the mounting seat (51) are symmetrically fixed with passive diaphragms (52); a sound outlet hole (511) connected to the area between the two passive diaphragms (52) in the mounting seat (51) is opened on the lower side of the mounting seat (51), and the sound outlet hole (511) faces the second sound amplification through hole (12); a plurality of supporting feet (19) are also fixed on the lower side of the housing (10); The housing (10) comprises a rear housing (13), a front end plate (14), a front housing (15) and a transparent glass cover (16); the front end plate (14) and the front housing (15) are all fixedly connected to the rear housing (13); the display screen (60) and the keypad (22) are both arranged on the front end plate (14); the glass cover (16) is also fixedly connected to the rear housing (13); the display screen (60) and the keypad (22) are both fixedly connected to the rear housing (13); (22) is located between the front end plate (14) and the glass cover shell (16); the front cover shell (15) and the glass cover shell (16) are both provided with a first through hole (17) for the control button group (70) to pass through; the front cover shell (15) is located between the front end plate (14) and the glass cover shell (16) and is covered on the front end plate (14); the front cover shell (15) is provided with a mounting hole (151) for embedding the display screen (60); The control key group (70) comprises a knob key (71) for controlling a switch and adjusting a volume, a button key (72) for controlling a display screen interface to return, and a rocker key (73) for selecting a display screen interface; potentiometers (23) corresponding to the knob key (71), the button key (72), and the rocker key (73) are respectively arranged on the key board (22); The front end plate (14) is provided with a third connecting column (142) passing through the key plate (22); a fixing seat (74) is provided on a side of the key plate (22) facing the glass cover shell (16); the fixing seat (74) is fixedly connected to the third connecting column (142) of the front end plate (14) by fixing screws; one side of the fixing seat (74) is covered on the potentiometer (23) corresponding to the knob key (71), the button key (72) and the rocker key (73); the other side of the fixing seat (74) is provided with a protective sleeve (741) inserted into the first through hole (17) of the glass cover shell (16); and three second through holes (742) for the knob key (71), the button key (72) and the rocker key (73) to pass through are respectively opened on the fixing seat (74) along the length direction of the protective sleeve (741).

2. The multifunctional speaker according to claim 1, characterized in that: The main board (21) is electrically connected to the key board (22); the charging interface (80) is fixedly connected to the main board (21); a telescopic antenna (90) electrically connected to the main board (21) is also provided on the back side of the housing (10) near the upper end; the display screen (60) and the control key group (70) are both directly connected to the key board (22).

3. The multifunctional speaker according to claim 1, characterized in that: The rear inner wall of the rear shell cover (13) is provided with a plurality of first connection columns (131) for fixing the main board (21) and the mounting seat (51); the left and right inner walls of the rear shell cover (13) are provided with a plurality of second connection columns (132) for fixing the front end plate (14); the left and right inner walls of the rear shell cover (13) are also provided with a plurality of plug-in limit strips (133); the front end plate (14) is provided with plug-in limit holes (141) around the four sides thereof which match the plug-in limit strips (133).

4. The multifunctional speaker according to claim 1, characterized in that: The inner wall of the rear housing (13) is provided with a step groove (134) on four sides, and the glass cover shell (16) is provided with a step surface (161) matching the step groove (134) on four sides, and the step surface (161) of the glass cover shell (16) is attached to the groove wall of the step groove (134); the step surface (161) of the glass cover shell (16) is also provided with a snap-in key (162), and the groove wall of the step groove (134) of the rear housing (13) is provided with a snap-in groove (135) matching the snap-in key (162).

5. The multifunctional sound box according to claim 1 or 2, characterized in that: The mainboard (21) is provided with a WIFI network connection module and a Bluetooth connection module; the mainboard (21) is also provided with a memory card slot module (24), and a socket (18) corresponding to the memory card slot module (24) is provided on the lower side of the housing (10).

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