CN218587290U

CN218587290U - Phase inversion type Bluetooth sound box with integrated structure

Info

Publication number: CN218587290U
Application number: CN202222951519.0U
Authority: CN
Inventors: 郑伟濠
Original assignee: Dongguan Lezun Electronic Technology Co ltd
Current assignee: Dongguan Lezun Electronic Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-07
Anticipated expiration: 2032-11-07

Abstract

A phase inversion type Bluetooth sound box with an integrated structure comprises an integrated shell 1, a sound leading part 2, a control part 3, an anti-skid and anti-vibration part 4, a sound amplifying part 5, a power supply part 6, a driving part 7 and a sound cavity 8; the integrated shell 1 is a square annular body which is integrally formed and is communicated front and back, and the sound leading part 2, the control part 3, the anti-skid and anti-vibration part 4, the sound amplifying part 5, the power supply part 6 and the driving part 7 are sequentially and respectively arranged at the front side, the rear side, the top and the inside of the square annular body; leading note portion 2 includes back lid 23, establishes the paraphase hole 24 on back lid 23, installs the inboard connecting piece 22 in paraphase hole 24 installs leading note pipe 21 on connecting piece 22, leading note pipe 21 bends downwards perpendicularly, and its mouth of pipe is 1-5mm to the distance of 1 bottom inboard surface of integral type casing, the utility model discloses the setting of leading note portion will release the interior low frequency sound wave energy conversion of audio amplifier and derive, strengthens the total sound wave energy of audio amplifier.

Description

Phase inversion type Bluetooth sound box with integrated structure

Technical Field

The utility model relates to a sound box, in particular to a phase inversion type bluetooth sound box of an organic whole structure.

Background

When the diaphragm of the woofer vibrates back and forth, sound waves are radiated into the box in addition to being radiated forward (outside the box). In the case of a closed enclosure, the acoustic energy radiated into the enclosure is wasted, the electro-acoustic conversion efficiency of the horn is usually only a few percent, which is a serious problem, and unfortunately, because the phases of the acoustic waves radiated before and after the diaphragm are just opposite, if the low-frequency acoustic waves radiated into the enclosure are released, the total low-frequency energy cannot be strengthened, but can be offset and weakened.

Disclosure of Invention

To the problem that above-mentioned technical field exists, the utility model provides a phase reversal formula bluetooth speaker.

A phase inversion type Bluetooth sound box with an integrated structure comprises an integrated shell, a sound guide part, a control part, an anti-skid and anti-vibration part, a sound amplification part, a power supply part, a driving part and a sound cavity; the integrated shell is a square annular body which is integrally formed and is communicated front and back, and the sound guide part, the control part, the anti-skid and anti-vibration part, the sound amplification part, the power supply part and the driving part are sequentially and respectively arranged on the front side, the back side, the top and the inside of the square annular body;

the front side of the integrated shell is provided with a front cover embedding opening, the rear side of the integrated shell is provided with a rear cover embedding opening, and the top of the integrated shell is provided with a top cover embedding opening;

the sound guide part comprises a rear cover, a phase reversal hole arranged on the rear cover, a connecting piece arranged on the inner side of the phase reversal hole, and a sound guide pipe arranged on the connecting piece, wherein the sound guide pipe is bent vertically downwards, and the distance from the pipe orifice of the sound guide pipe to the inner side surface of the bottom of the integrated shell is 1-5mm;

the rear cover is fitted in the rear cover fitting opening 12.

The control part comprises a key board, a top cover arranged on the key board and a key decorative board arranged on the top cover, wherein the top cover is embedded in the top cover embedding opening.

The public address portion includes loudspeaker, protecgulum, cloth net and protection network, loudspeaker install the inboard at the protecgulum, the cloth net is equipped with in the outside subsides of protecgulum, the protection network is installed in the outside of cloth net. The cloth net is used for dust prevention and moisture prevention, and the protective net is used for protecting the loudspeaker from being collided by external force.

The integral type casing, protecgulum, back lid and top cap have enclosed into the sound chamber, the sound chamber is closed sound chamber, the leading note pipe is established in this closed sound chamber, the sound inlet of leading note pipe is located the bottom in sound chamber and does not contact with the bottom in sound chamber.

The drive portion is a mainboard, the mainboard is installed in the middle of the inboard lower end of the rear cover and comprises a main control circuit, a power supply circuit and an audio output circuit, the main control circuit is connected with the key board, and the audio output circuit is connected with the loudspeaker.

The power supply part is a battery, the battery is installed at the right end of the inner side of the rear cover, and the power supply circuit is connected with the battery.

The anti-skidding and anti-vibration parts are inverted conical foot pads, the number of the inverted conical foot pads is four, and the four inverted conical foot pads are uniformly distributed at four corners of the bottom surface of the integrated shell.

The beneficial effects of the utility model are that the setting of leading note portion will release the low frequency sound wave energy conversion derivation in the audio amplifier, strengthens the total sound wave energy of audio amplifier.

Drawings

FIG. 1 is an overall structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is a back structural view of the present invention.

In the figure: 1. an integral housing; 11. the front cover is embedded with the opening; 12. the rear cover is embedded with the opening; 13. a top cover embedding opening; 2. a sound guide part; 21. a sound guide tube; 211. a sound inlet; 22. a connecting member; 23. a rear cover; 24. an inverter hole; 4. an anti-skid vibration-damping portion; 5. a sound amplification unit; 51. a horn; 52. a front cover; 53. laying a net; 54. a protective net; 6. a power supply unit; 7. a drive section; a sound chamber 8.

Detailed Description

The present invention will be described more fully with reference to the accompanying drawings and specific embodiments, which are only some of the embodiments of the present invention, and those skilled in the art will be able to understand the present invention without any creative effort.

As shown in fig. 1 and 3, the phase inversion type bluetooth sound box with an integrated structure comprises an integrated casing 1, a sound leading part 2, a control part 3, an anti-slip and anti-vibration part 4, a sound amplifying part 5, a power supply part 6, a driving part 7 and a sound cavity 8, wherein the integrated casing 1 is a square annular body which is integrally formed and is communicated from front to back, the front side of the square annular body is provided with the sound amplifying part 5, the rear side is provided with the sound leading part 2, the top part of the square annular body is provided with the control part 3, and a battery 6 and a mainboard 7 are installed inside the square annular body.

The front side of the integrated shell 1 is provided with a front cover embedding opening 11, the rear side is provided with a rear cover embedding opening 12, and the top is provided with a top cover embedding opening 13.

As shown in fig. 2 and 3, the sound guide 2 includes a rear cover 23, an inverter hole 24 provided in the rear cover 23, a connector 22 attached to the inside of the inverter hole 24, and a sound guide tube 21 attached to the connector 22. The sound guide pipe 21 is vertically bent downwards, and the distance from the pipe orifice to the inner side surface of the bottom of the integrated shell 1 is 1-5mm. The rear cover 23 is fitted in the rear cover fitting opening 12.

The control part 3 comprises a key plate 31, a top cover 32 mounted on the key plate 31, and a key decorative plate 33 mounted on the top cover 32, wherein the top cover 32 is embedded in the top cover embedding opening 13.

The anti-slip and anti-vibration part 4 is an inverted conical foot pad, and the number of the inverted conical foot pads is four, and the four conical foot pads are uniformly distributed at four corners of the bottom surface of the integrated shell 1. Because the area of the upper part of the inverted conical foot pad is larger than that of the lower part of the inverted conical foot pad, the gravity from the integrated shell 1 is the bearing force, and the vibration damping performance is good.

The sound amplifying part 5 comprises a loudspeaker 51, a front cover 52, a cloth net 53 and a protective net 54, wherein the loudspeaker 51 is installed on the inner side of the front cover 52, the cloth net 53 is attached to the outer side of the front cover 52, and the protective net 54 is installed on the outer side of the cloth net 53. The cloth net 53 is used for dust and moisture prevention, and the protection net 54 is used for protecting the horn 51 from being collided by external force.

As shown in fig. 2, the power supply unit 6 is a battery mounted on the right end inside the rear cover 23.

The drive portion 7 is a main board, the main board is installed in the middle of the inner side lower end of the rear cover 23 and comprises a main control circuit, a power supply circuit and an audio output circuit, the main control circuit is connected with the key board, the audio output circuit is connected with the loudspeaker, and the power supply circuit is connected with the battery.

The integrated shell 1, the front cover 52, the rear cover 23 and the top cover 32 enclose a sound cavity 8, the sound cavity 8 is a closed sound cavity, the sound guide tube 21 is arranged in the closed sound cavity, and in order that sound waves radiated from the rear can enter the sound guide tube 21, the sound inlet 211 of the sound guide tube 21 is located at the bottom of the sound cavity 8 and is not in contact with the bottom of the sound cavity 8.

The loudspeaker makes sound under the drive of the main board, the phases of sound waves radiated from the front and back of the loudspeaker are opposite, the sound waves radiated forwards penetrate through the protective net 54 and are emitted outwards, the sound waves radiated backwards revolve in the sound cavity 8, part of the sound waves enter the sound guide tube 21 from the sound inlet 211 at the bottom end of the sound guide tube, the sound waves are bent by 90 degrees and are transmitted upwards, the sound waves are bent by 90 degrees and are emitted from the phase inversion hole 24, the same-phase sound waves unified with the forward sound waves are formed through two times of bending, and the sound wave function is enhanced after the front sound waves and the back sound waves are combined.

Claims

1. An integrally-structured phase inversion type Bluetooth sound box comprises an integrated shell (1), a sound guide part (2), a control part (3), an anti-skidding and anti-vibration part (4), a sound amplification part (5), a power supply part (6), a driving part (7) and a sound cavity (8); the integrated shell (1) is a square annular body which is integrally formed and is conducted front and back, and the sound guide part (2), the control part (3), the anti-skid and anti-vibration part (4), the sound amplification part (5), the power supply part (6) and the driving part (7) are sequentially and respectively arranged on the front side, the back side, the top and the inside of the square annular body;

the integrated shell is characterized in that a front cover embedding opening (11) is formed in the front side of the integrated shell (1), a rear cover embedding opening (12) is formed in the rear side of the integrated shell, and a top cover embedding opening (13) is formed in the top of the integrated shell;

the sound guide part (2) comprises a rear cover (23), an inverter hole (24) arranged on the rear cover (23), a connecting piece (22) arranged on the inner side of the inverter hole (24), and a sound guide pipe (21) arranged on the connecting piece (22), wherein the sound guide pipe (21) is bent vertically downwards, and the distance from the pipe orifice of the sound guide pipe to the inner side surface of the bottom of the integrated shell (1) is 1-5mm;

the rear cover (23) is embedded in the rear cover embedding opening (12).

2. The inverted bluetooth speaker with an integrated structure as claimed in claim 1, wherein said control portion (3) comprises a key sheet (31), a top cover (32) mounted on said key sheet (31), and a key decorative plate (33) mounted on said top cover (32), said top cover (32) being fitted into said top cover fitting opening (13).

3. The inverted Bluetooth speaker of an integrated structure as claimed in claim 2, wherein the speaker unit (5) comprises a speaker (51), a front cover (52), a cloth net (53) and a protective net (54), the speaker (51) is mounted inside the front cover (52), the cloth net (53) is mounted outside the front cover (52), the protective net (54) is mounted outside the cloth net (53), the cloth net (53) is used for dust and moisture protection, and the protective net (54) is used for protecting the speaker (51) from external impact.

4. The inverted Bluetooth speaker of an integrated structure as claimed in claim 1, 2 or 3, wherein the integrated casing (1), the front cover (52), the rear cover (23) and the top cover (32) enclose a sound cavity (8), the sound cavity (8) is a closed sound cavity, the sound guiding tube (21) is disposed in the closed sound cavity, and the sound inlet (211) of the sound guiding tube (21) is located at the bottom of the sound cavity (8) and is not in contact with the bottom of the sound cavity (8).

5. The bluetooth speaker with phase inversion type of integrated structure as claimed in claim 4, wherein said driving portion (7) is a main board, said main board is installed in the middle of the inner lower end of the back cover (23) and comprises a main control circuit, a power supply circuit and an audio output circuit, said main control circuit is connected with the key board, said audio output circuit is connected with the speaker.

6. The inverted Bluetooth speaker as claimed in claim 5, wherein the power supply unit (6) is a battery, the battery is mounted on the right end of the inner side of the rear cover (23), and the power supply circuit is connected to the battery.

7. The inverted Bluetooth speaker of an integrated structure as claimed in claim 4, wherein the anti-slip and anti-vibration portions (4) are inverted conical foot pads, four of which are uniformly distributed at four corners of the bottom surface of the integrated casing (1).