CN212850914U

CN212850914U - Multifunctional Bluetooth sound box capable of receiving sound in all directions and shielding echo

Info

Publication number: CN212850914U
Application number: CN202022260761.4U
Authority: CN
Inventors: 龙新华
Original assignee: Dongguan Taisheng Sound Technology Co ltd
Current assignee: Dongguan Taisheng Sound Technology Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-03-30
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses a multifunctional Bluetooth sound box capable of receiving sound in all directions and shielding echo, which comprises an upper shell, a lower shell, a loudspeaker, a microphone, a control circuit board and a microphone PCB board, wherein the loudspeaker is arranged at the middle position of the sound box, and the microphone is respectively arranged at the two ends close to the sound box; the microphone comprises six microphones, and the three microphones are arranged in a regular triangle and close to the end part of the whole sound box. The utility model discloses a make up two sets of equilateral triangle with 6 noise elimination microphones and distribute on four miaow head PCB boards, and fix the position farthest away from two loudspeaker in the upper housing through the screw, greatly reduced loudspeaker frequency response to the interference of microphone like this, can receive 360 all-round conversations again, cooperate the echo and noise elimination structural design, in order to realize better conversation effect; two external charging interfaces are designed, and the device can also be used for the endurance of electronic equipment such as a mobile phone. And the two sides and the touch part are respectively designed with light effect, so that the sound box is more beautiful.

Description

Multifunctional Bluetooth sound box capable of receiving sound in all directions and shielding echo

Technical Field

The utility model relates to an audio amplifier product technical field, concretely relates to wireless bluetooth conference conversation audio amplifier.

Background

With the development of society, people have new requirements for meeting discussion of multiple people or conversation among family members due to special scenes such as life and work, and the portable conference-trial conversation noise-reduction Bluetooth loudspeaker box capable of receiving sound in all directions meets the characteristics of the Bluetooth loudspeaker box, particularly has strong audio signal collecting and processing capacity, and has strong noise filtering capacity, so that the use requirements of the Bluetooth loudspeaker box in diversified application scenes such as indoor scenes and outdoor scenes are firmly met. The existing communication sound box product also has a communication function, but a microphone is usually arranged at a certain position to collect sound signals, but the direction control is not accurate enough, so that inaccurate sound reception and more noise are caused, the communication quality is influenced, and obvious echo interference exists. In addition, the existing portable bluetooth communication speaker is not ideal in aesthetic property, and therefore a multifunctional communication speaker capable of satisfying the requirements of consumers in the aspects of all-directional sound reception, noise reduction, echo interference prevention, aesthetic property and the like is urgently needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a structural design is more reasonable, the product is more pleasing to the eye, the radio reception effect, prevent that echo interference effect and noise reduction are better, can all-round radio reception and shield the multi-functional bluetooth speaker of echo.

In order to solve the technical problem, the utility model adopts the following technical scheme: a multifunctional Bluetooth sound box capable of receiving sound in all directions and shielding echoes comprises a shell, a loudspeaker, a microphone, a control circuit board and a microphone PCB, wherein the loudspeaker is connected with the control circuit board; the control circuit board is provided with a Bluetooth module, and the microphone is connected with the microphone PCB; the casing is including casing and last casing down, and both combinations are fixed with loudspeaker and control circuit board assembly, and the miaow head then assembles in last casing to cover its characterized in that through the screen frame with miaow head and last casing: the loudspeaker box is of a flat structure, the loudspeaker is arranged in the middle of the loudspeaker box, and the microphone is respectively arranged at the two ends close to the loudspeaker box; the microphone comprises six microphones, and three microphones are arranged in a regular triangle and close to the end part of the whole sound box, so that the left side and the right side of the loudspeaker are respectively provided with one microphone group; three independent microphone cavities which are arranged in a regular triangle shape are respectively arranged at the positions, close to the two ends, of the upper shell, one microphone cavity corresponds to one microphone, and each microphone is respectively fixed on the bottom surface of the corresponding microphone PCB and embedded in the microphone cavity; the microphone PCB and the upper shell are pressed and sealed through a double-sided gum sealing gasket to seal the microphone cavity, and the microphone PCB and the upper shell are assembled and fixed; the microphone is exposed out of a position avoiding hole formed in the double-sided back-adhesive foam rubber pad; a plurality of silica gel plugs are inserted into the upper shell, and the net frame is pressed on the silica gel plugs to form a shock insulation structure between the net frame and the upper shell. Therefore, the influence of vibration sound caused by the screen frame can be effectively reduced, the Echo THD of the whole machine is reduced to be below 2.0 percent, and good acoustic conditions are created for achieving a high-quality call effect.

Furthermore, thin transparent light transmission parts are respectively designed on two sides of the upper shell, an LED lamp panel with a plurality of LED lamps is arranged at a position close to the light transmission parts, the LED lamp panel is installed on a fixed support, and the fixed support is fixed in the lower shell; the LED lamp comprises an LED lamp panel, an upper shell and a light guide plate, wherein the light guide plate is arranged between the LED lamp panel and the upper shell, the light guide plate extends from the upper part of the LED lamp to be attached to a light transmission part of the upper shell, and a structure for transmitting light of the LED lamp to the light transmission part is formed. The transmission of light rays on two sides is realized by utilizing the local thin glue position, so that the structure is simplified, and the material cost and the die cost are saved. The light guide plate adopts the two-sided gum mode and carries on that 20 high resolution LED RGB lamp plates are tightly glued on last casing, locks the screw after compressing tightly with the fixed bolster at last, has simplified assembly process, has avoided light leak phenomenon and the sound problem emergence of shaking. The gorgeous lighting effect enables the user not to feel lonely and boring in a dark meeting environment, thereby experiencing a pleasant feeling of physical and mental.

Further, a passive radiator is provided in the cabinet, the passive radiator being located at a position between the two horns and mounted on the lower case, so that the cabinet has more excellent acoustic performance.

Further, the lower shell is provided with two USB 2.0 interfaces, one USB 3.0 interface and one TYPE-C interface, wherein the two USB 2.0 interfaces are arranged on the side face of one end of the lower shell, and the USB 3.0 interface and the TYPE-C interface are arranged on the bottom face of the lower shell; a clearance groove is arranged in the bottom plate of the lower shell, and the USB 3.0 interface and the TYPE-C interface are arranged on the groove wall of the clearance groove. The external double-USB rapid charging and data transmission and exchange can be realized, the NFC function can be supported, the powerful function design breaks through the convention that the traditional loudspeaker box can only monotonously play music or conference call, and a user can experience the fun of high-quality and high-configuration intelligent loudspeaker box.

Furthermore, two assembling grooves are respectively arranged in the areas for mounting the microphone on the two sides of the upper shell, each microphone is provided with two microphone PCB boards, each microphone PCB board is respectively arranged in one assembling groove, and a wiring groove for connecting a lead is arranged between the two assembling grooves; one of the fitting grooves is provided with a microphone hole, and the other fitting groove is provided with two microphone holes.

Furthermore, a seam allowance lower concave part is arranged on the upper end edge of the lower shell, and a seam allowance lower convex part is arranged on the lower end edge of the upper shell; a sealing strip is arranged in the lower concave part of the seam allowance, and the lower convex part of the seam allowance of the upper shell is clamped into the lower concave part of the seam allowance of the lower shell and is pressed on the sealing strip; the edge of the top of the upper shell is provided with a spigot upper concave part protruding upwards, the top of the light guide plate is provided with a spigot upper convex part, the spigot upper convex part is clamped into the spigot upper concave part after the upper shell is tightly covered, and the spigot upper convex part is matched with the spigot lower convex part to form a double-spigot assembly structure of the upper shell and the lower shell so as to achieve good sealing and waterproof performance. Meanwhile, the sealing strips are extruded through the upper shell and the lower shell to form a fully-closed loudspeaker rear sound cavity, the closed sound cavity can completely block sound emitted when the loudspeaker is driven backwards, acoustic short circuit and interference between the front cavity and the rear cavity are eliminated, and therefore the sound box can obtain lower playback frequency, and soft and deep high-fidelity sound quality is formed.

Furthermore, a touch control board is arranged on one side of the upper shell and connected with the control circuit board to provide a touch screen control function.

Further, a touch PCB is arranged below the touch control panel, the touch surface of the touch control panel is transparent beer plastic and is sprayed with a black oil layer, Icon (Icon) characters are formed through laser, a metal finish paint layer is sprayed on the Icon characters, and a silica gel conducting strip with high conductivity coefficient is additionally arranged between the bottom of each Icon character and a touch coil of the touch PCB.

Furthermore, two LED lamps are arranged on the touch PCB corresponding to each Icon character and respectively irradiate from two sides of each Icon character, soft light can be emitted when a key is touched, and the Icon characters can be automatically hidden in an inoperative state.

The utility model discloses a constitute two sets of equilateral triangle with 6 noise elimination microphones and distribute on four miaow head PCB boards, and fix the position farthest away from two loudspeaker in last casing through the screw, so greatly reduced loudspeaker frequency response to the interference of microphone, can receive 360 all-round conversations again, cooperate echo and noise elimination structural design, 6 microphones fall the noise automatically, rethread bluetooth connection computer or mobile phone equipment realize clear, smooth video teleconference; two external charging interfaces are designed, and the mobile phone and other electronic equipment can be continued in outdoor and other scenes. And the two sides and the touch part are respectively designed with light effect, so that the whole sound box is more beautiful.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention from another angle;

FIG. 3 is an internal structure view of the present invention;

FIG. 4 is an exploded view of the main body of the present invention;

FIG. 5 is a view showing the arrangement of a microphone cavity;

fig. 6 is a schematic partial cross-sectional view of the present invention.

In the figure, 1 is an upper shell, 2 is a lower shell, 3 is a touch control panel, 4 is a screen frame, 5 is a microphone, 6 is a microphone PCB, 7 is a loudspeaker, 8 is an LED lamp panel, 9 is a light guide plate, 91 is a top convex part, 10 is a fixing support, 11 is a double-sided gum foam pad, 12 is a passive radiator, 13 is a silica gel plug, 14 is an assembly groove, 15 is a microphone cavity, 16 is a wiring groove, 17 is a light transmission part, 18 is a bottom convex part, 19 is a sealing strip, 21 is a bottom plate, 22 is a clearance groove, 23 is a TYPE-C interface, 24 is a USB 3.0 interface, 25 is a USB 2.0 interface, 31 is a touch PCB, and 32 is a silica gel conducting strip.

Detailed Description

In this embodiment, referring to fig. 1 to 6, the multifunctional bluetooth speaker capable of receiving sound in all directions and shielding echoes includes a housing, a speaker 7, a microphone 5, a control circuit board and a microphone PCB 6, where the speaker 7 is connected to the control circuit board; the control circuit board is provided with a Bluetooth module, and the microphone 5 is connected with the microphone PCB 6; the shell comprises a lower shell 2 and an upper shell 1, the combination of the lower shell 2 and the upper shell fixes the loudspeaker 7 and the control circuit board, the microphone 5 is assembled in the upper shell 1, and the microphone 5 and the upper shell 1 are covered by a screen frame 4; the sound box is of a flat structure, is similar to a mobile phone, the loudspeaker 7 is arranged in the middle of the sound box, and the microphone 5 is respectively arranged at the two ends close to the sound box; the microphone 5 comprises six microphones, and three microphones 5 are arranged in a regular triangle and close to the end part of the whole sound box, so that a group of microphones are arranged on the left side and the right side of the loudspeaker 7 respectively; three independent microphone cavities 15 which are arranged in a regular triangle shape are respectively arranged at the positions, close to the two ends, of the upper shell 1, one microphone cavity 15 corresponds to one microphone 5, and each microphone 5 is respectively fixed on the bottom surface of the corresponding microphone PCB 6 and embedded in the microphone cavity 15; the microphone PCB 6 and the upper shell 1 are pressed and sealed through a double-sided adhesive-backed sealing gasket to seal the microphone cavity 15, and the microphone PCB 6 and the upper shell 1 are assembled and fixed; the net frame 4 is fastened on the upper shell 1, a double-sided back-adhesive foam rubber pad 11 is padded between the upper shell 1 and the net frame 4, and the microphone 5 is exposed in a position avoiding hole formed in the double-sided back-adhesive foam rubber pad 11; a plurality of silica gel plugs 13 are inserted into the upper shell 1, and the net frame 4 is pressed on the silica gel plugs 13 to form a shock insulation structure between the net frame 4 and the upper shell 1. Therefore, the influence of vibration sound caused by the screen frame 4 can be effectively reduced, the Echo THD of the whole machine is reduced to be below 2.0 percent, and good acoustic conditions are created for achieving a high-quality call effect.

Thin transparent light transmission parts 17 are respectively designed at two sides of the upper shell 1, an LED lamp panel 8 with a plurality of LED lamps is arranged at a position close to the light transmission parts 17, the LED lamp panel 8 is installed on a fixed support 10, and the fixed support 10 is fixed in the lower shell 2; a light guide plate 9 is provided between the LED lamp panel 8 and the upper housing 1, and the light guide plate 9 extends from above the LED lamp to be attached to the light transmission portion 17 of the upper housing 1, thereby forming a structure for transmitting light of the LED lamp to the light transmission portion 17. The transmission of light rays on two sides is realized by utilizing the local thin glue position, so that the structure is simplified, and the material cost and the die cost are saved. The light guide plate 9 is tightly stuck on the upper shell 1 by adopting a double-sided back glue mode and carrying 20 high-resolution LED RGB lamp panels, and finally screws are locked after being pressed by the fixing support 10, so that the assembly process is simplified, and the light leakage phenomenon and the vibration sound problem are avoided.

In which a passive radiator 12 is provided, the passive radiator 12 being located at a position between the two horns 7 and being mounted on the lower casing 2, so that the cabinet has more excellent acoustic performance.

The lower shell 2 is provided with two USB 2.0 interfaces 25, one USB 3.0 interface 24 and one TYPE-C interface 23, wherein the two USB 2.0 interfaces 25 are arranged on the side surface of one end of the lower shell 2, and the USB 3.0 interface 24 and the TYPE-C interface 23 are arranged on the bottom surface of the lower shell 2; a clearance groove 22 is formed in the bottom plate 21 of the lower case 2, and the USB 3.0 interface 24 and the TYPE-C interface 23 are formed on the wall of the clearance groove 22. The external double-USB rapid charging and data transmission and exchange can be realized, the NFC function can be supported, the powerful function design breaks through the convention that the traditional loudspeaker box can only monotonously play music or conference call, and a user can experience the fun of high-quality and high-configuration intelligent loudspeaker box.

Two assembling grooves 14 are respectively arranged in the areas for mounting the microphone 5 on the two sides of the upper shell 1, each microphone is provided with two microphone PCB boards 6, each microphone PCB board 6 is respectively arranged in one assembling groove 14, and a wiring groove 16 for connecting a lead is arranged between the two assembling grooves 14; one of the fitting grooves 14 is provided with one of the microphone holes 15, and the other fitting groove 14 is provided with two microphone holes 15 arranged in a regular triangle.

A spigot lower concave part is arranged on the upper end edge of the lower shell 2, and a spigot lower convex part 18 is arranged on the lower end edge of the upper shell 1; a sealing strip 19 is arranged in the lower recess of the spigot, and the lower convex part 18 of the spigot of the upper shell 1 is clamped into the lower recess of the spigot of the lower shell 2 and pressed on the sealing strip 19; the edge of the top of the upper shell 1 is provided with a spigot upper concave part protruding upwards, the top of the light guide plate 9 is provided with a spigot upper convex part 91, the spigot upper convex part 91 is clamped into the spigot upper concave part after the upper shell 1 is tightly covered, and the spigot upper convex part and the spigot lower convex part 18 are matched to form a double-spigot assembling structure of the upper shell 1 and the lower shell 2, so that good sealing and waterproof performance is achieved, such as IPX 45. Meanwhile, the sealing strip 19 is extruded through the upper shell and the lower shell to form a fully-closed loudspeaker rear sound cavity, the closed sound cavity can completely block sound emitted when the loudspeaker is driven backwards, acoustic short circuit and interference between the front cavity and the rear cavity are eliminated, and therefore the sound box can obtain lower replay frequency, and soft and deep high-fidelity sound quality is formed.

A touch control panel 3 is disposed on one side of the upper casing 1, and the touch control panel 3 is connected to the control circuit board to provide a touch screen control function.

A touch PCB 31 is disposed below the touch control panel 3, the touch surface of the touch control panel 3 is transparent beer plastic and is sprayed with a black oil layer, Icon (Icon) characters are formed by laser, a metal finish paint layer is sprayed on the Icon characters, and a silica gel conductive sheet 32 with a high conductivity coefficient is additionally padded between the bottom of each Icon character and a touch coil of the touch PCB.

Two LED lamps are arranged on the touch PCB 31 corresponding to each Icon character and respectively irradiate from two sides of each Icon character, soft light can be emitted when a key is touched, and the Icon character can be automatically hidden when the key is not in operation.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims

1. A multifunctional Bluetooth sound box capable of receiving sound in all directions and shielding echoes comprises a shell, a loudspeaker, a microphone, a control circuit board and a microphone PCB, wherein the loudspeaker is connected with the control circuit board; the control circuit board is provided with a Bluetooth module, and the microphone is connected with the microphone PCB; the casing is including casing and last casing down, and both combinations are fixed with loudspeaker and control circuit board assembly, and the miaow head then assembles in last casing to cover its characterized in that through the screen frame with miaow head and last casing: the loudspeaker box is of a flat structure, the loudspeaker is arranged in the middle of the loudspeaker box, and the microphone is respectively arranged at the two ends close to the loudspeaker box; the microphone comprises six microphones, and three microphones are arranged in a regular triangle and close to the end part of the whole sound box, so that the left side and the right side of the loudspeaker are respectively provided with one microphone group; three independent microphone cavities which are arranged in a regular triangle shape are respectively arranged at the positions, close to the two ends, of the upper shell, one microphone cavity corresponds to one microphone, and each microphone is respectively fixed on the bottom surface of the corresponding microphone PCB and embedded in the microphone cavity; the microphone PCB and the upper shell are pressed and sealed through a double-sided gum sealing gasket to seal the microphone cavity, and the microphone PCB and the upper shell are assembled and fixed; the screen frame is fastened on the upper shell, a double-sided gum foam rubber pad is padded between the upper shell and the screen frame, and the microphone is exposed out of a position avoiding hole formed in the double-sided gum foam rubber pad; a plurality of silica gel plugs are inserted into the upper shell, and the net frame is pressed on the silica gel plugs to form a shock insulation structure between the net frame and the upper shell.

2. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 1, wherein: thin transparent light transmission parts are respectively designed on two sides of the upper shell, an LED lamp panel with a plurality of LED lamps is arranged at a position close to the light transmission parts, the LED lamp panel is installed on a fixed support, and the fixed support is fixed in the lower shell; the LED lamp comprises an LED lamp panel, an upper shell and a light guide plate, wherein the light guide plate is arranged between the LED lamp panel and the upper shell, the light guide plate extends from the upper part of the LED lamp to be attached to a light transmission part of the upper shell, and a structure for transmitting light of the LED lamp to the light transmission part is formed.

3. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 1, wherein: a passive radiator is arranged in the sound box, is positioned between the two horns and is arranged on the lower shell.

4. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 1, wherein: the lower shell is provided with two USB 2.0 interfaces, one USB 3.0 interface and one TYPE-C interface, wherein the two USB 2.0 interfaces are arranged on the side face of one end of the lower shell, and the USB 3.0 interface and the TYPE-C interface are arranged on the bottom face of the lower shell; a clearance groove is arranged in the bottom plate of the lower shell, and the USB 3.0 interface and the TYPE-C interface are arranged on the groove wall of the clearance groove.

5. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 1, wherein: two assembling grooves are respectively arranged in the areas for mounting the microphone on the two sides of the upper shell, each microphone is provided with two microphone PCB boards, each microphone PCB board is respectively arranged in one assembling groove, and a wiring groove for connecting a lead is arranged between the two assembling grooves; one of the fitting grooves is provided with a microphone hole, and the other fitting groove is provided with two microphone holes.

6. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 1, wherein: a seam allowance lower concave part is arranged at the edge of the upper end of the lower shell, and a seam allowance lower convex part is arranged at the edge of the lower end of the upper shell; a sealing strip is arranged in the lower concave part of the seam allowance, and the lower convex part of the seam allowance of the upper shell is clamped into the lower concave part of the seam allowance of the lower shell and is pressed on the sealing strip; the edge of the top of the upper shell is provided with a spigot upper concave part protruding upwards, the top of the light guide plate is provided with a spigot upper convex part, the spigot upper convex part is clamped into the spigot upper concave part after the upper shell is tightly covered, and the spigot upper convex part is matched with the spigot lower convex part to form a double-spigot assembling structure of the upper shell and the lower shell.

7. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 1, wherein: one side of the upper shell is provided with a touch control panel, and the touch control panel is connected with the control circuit board.

8. The multifunctional Bluetooth speaker capable of receiving sound in all directions and shielding echoes as claimed in claim 7, wherein: the touch control panel is characterized in that a touch PCB is arranged below the touch control panel, the touch surface of the touch control panel is transparent beer plastic and is sprayed with a black oil layer, icon characters are formed through laser, a metal finish paint layer is sprayed on the icon characters, and a silica gel conducting strip with high conductivity coefficient is additionally arranged between the bottom of each icon character and a touch coil of the touch PCB.

9. The multifunctional bluetooth speaker capable of receiving sound and shielding echo in all directions as claimed in claim 8, wherein: two LED lamps are arranged on the touch PCB corresponding to each icon character and respectively irradiate from two sides of each icon character.