CN105516835A

CN105516835A - Sound box

Info

Publication number: CN105516835A
Application number: CN201510817276.3A
Authority: CN
Inventors: 刘向东
Original assignee: Shenzhen Abramtek Technology Co ltd
Current assignee: Shenzhen Abramtek Technology Co ltd
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2016-04-20

Abstract

The invention provides a sound box which comprises a sound box shell, a loudspeaker, a base and a vortex cavity, wherein an accommodating space is formed between the sound box shell and the base, the loudspeaker and the vortex cavity are arranged in the accommodating space, and the vortex cavity is positioned below the loudspeaker. After the technical scheme is adopted, when the loudspeaker makes a sound, downward thrust is generated, air flow is pushed, the air flow carries sound waves to enter the sound inlet hole and the sound transmission channel, the space is reduced from large to small, the low-frequency part is extended, meanwhile, certain resistance is generated, the resistance enables air pressure to rebound on a vibrating diaphragm of the loudspeaker, the vibration frequency of the loudspeaker is slowed down, the vibration period is obviously prolonged, large low-frequency playback is obtained at the position with small amplitude, and the bearable playback power of the loudspeaker is greatly improved, so that the low-frequency playback function of the loudspeaker box is expanded, and the low-frequency downward concentration extension effect is achieved.

Description

Sound box

Technical Field

The invention relates to the field of sound boxes, in particular to a sound box.

Background

The sound box is not only a carrier of the loudspeaker, but also a resonator of the loudspeaker, and particularly a bass box effect, if the auxiliary effect of the sound box is not available, the function of the sound box is difficult to play, and even the bass-free effect is generated.

Therefore, the volume of the bass box in the market is large, the structure is complex, or the bass effect is not obvious, and a small-sized sound box with a simple structure and a good bass effect is urgently needed in the market.

Disclosure of Invention

In view of the above, the present invention provides a sound box capable of solving the above problems, including a sound box housing, a speaker, a base, and a vortex cavity, wherein an accommodating space is formed between the sound box housing and the base, the speaker and the vortex cavity are installed in the accommodating space, and the vortex cavity is located below the speaker.

Wherein,the vortex flow cavity is characterized in that a partition plate is arranged above the vortex flow cavity, a sound transmission channel is arranged below the partition plate, and a sound inlet hole is formed in the partition plate and is located at the initial position of the sound transmission channel.

Wherein，The sound transmission channel is a long channel formed by a first channel and a second channel.

Wherein,the channel starts from the sound inlet hole on the partition board and is a vortex channel gradually becoming smaller from the big, and the channel II is crossed and connected with the channel I and is a vortex channel gradually becoming larger from the small at the cross.

Wherein,the sound transmission channel is provided with a middle plate below, the middle plate is provided with a sound outlet hole, and the sound outlet hole is positioned at the tail end of the sound transmission channel.

Wherein,the middle plate is tightly attached to the vortex cavity body and forms a closed sound transmission channel with the vortex cavity body.

Wherein,the vortex cavity and the middle plate are both provided with wire channels, and the wire channels are positioned on the edges of the side walls.

Wherein,and a circuit board is arranged below the middle plate, and a control circuit and an audio interface are arranged on the circuit board.

Wherein,the circuit board is fixed on the base, and the base is provided with a key hole, a USB hole and a sound outlet hole.

Wherein,and a key assembly is arranged below the base.

After adopting above technical scheme, when the speaker makes a sound, produce the thrust downwards, promote the air current, the air current carries the sound wave to get into sound inlet and sound transmission channel, the space is by big diminishing, the low frequency part obtains extending, produce certain resistance simultaneously, the resistance can make atmospheric pressure kick-back in the vibrating diaphragm of speaker, the vibration frequency of speaker slows down, vibration cycle obviously lengthens, obtain great low frequency playback in the less department of amplitude, thereby by a wide margin promotion speaker can bear playback power and expand the low frequency playback function of audio amplifier and the effect that the concentration extended down of low frequency. When the air flow reaches the tail end of the sound transmission channel, the tail end of the sound transmission channel is narrowed and widened, the air flow can rapidly pass through, and therefore the sound production of the whole sound box is more transparent.

Drawings

Fig. 1 is a schematic diagram of a vortex enhanced bass box according to an embodiment of the present invention.

Fig. 2 is an exploded view of the sound box of the present invention.

Fig. 3 is a partially exploded view of the sound box of the present invention.

Fig. 4 is a schematic diagram of a speaker according to the present invention.

Fig. 5 is a schematic view of the speaker stand according to the present invention.

FIG. 6 is a schematic view of a vortex chamber of the present invention.

Fig. 7 is a schematic view of an intermediate plate according to the present invention.

FIG. 8 is a schematic view of a base according to the present invention.

Fig. 9 is a schematic view of a key sheet according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-9, the present invention provides a schematic structural diagram of a vortex enhanced bass box, including a speaker enclosure 10, a speaker 20, a vortex cavity 30 and a base 50, wherein an accommodating space is formed between the speaker enclosure 10 and the base 50, the speaker 20 and the vortex cavity 30 are installed in the accommodating space, and the vortex cavity 30 is located below the speaker 20.

Referring to fig. 1-9, a partition plate 31 is disposed on the vortex chamber 30, a sound transmission channel 320 is disposed below the partition plate 31, a sound inlet hole 311 is disposed on the partition plate 31, and the sound inlet hole 311 is located at an initial position of the sound transmission channel 320.

When the loudspeaker 20 makes a sound, a downward thrust is generated to push an air flow, the air flow carries sound waves to enter the sound inlet hole 311 and the sound transmission channel, the space is changed from big to small, the low-frequency part is extended, and meanwhile, a certain resistance is generated, the resistance can enable the air pressure to rebound on a vibrating diaphragm of the loudspeaker 20, the vibration frequency of the loudspeaker 20 is slowed down, the vibration period is obviously prolonged, a large low-frequency is obtained at a position with a small amplitude for reproduction, and the bearable reproduction power of the loudspeaker is greatly improved, so that the low-frequency reproduction function of the sound box and the effect of low-frequency. When the air flow reaches the end of the sound transmission channel 320, the air flow is rapidly passed through the sound transmission channel 320 from narrow to wide, so that the sound of the whole sound is more transparent.

Referring to fig. 1-9, the sound transmission channel 320 is a long channel formed by first channels 321-323 and second channels 323-325, the first channel is a vortex-shaped channel starting from the sound inlet 311 and gradually narrowing from the sound inlet 311 to 323, the second channel is intersected with the first channel at the position of the first channel 323 and gradually enlarging from 323 to 325, and the whole sound transmission channel is changed from large to small, then from small to large, then from large to small and finally from small to large to small and repeats regular changes.

Referring to fig. 2-9, the middle plate 40 is disposed below the sound transmission channel 320, and the middle plate 40 is provided with a sound outlet 411, where the sound outlet 411 is located at the end of the sound transmission channel.

Referring to fig. 2-9, the middle plate 40 is provided with screw holes 413, and the screw holes are fixedly connected to the screw posts 330 on the vortex cavity 30 through screws, so that the upper end surface 41 of the middle plate 40 is tightly attached to the lower end surface 32 of the vortex cavity 30 to form a sealed one-way sound transmission channel 320, and the middle plate is fixedly connected through screws, and is firmly fixed, thereby facilitating installation and detachment.

When the air current carries the sound wave to propagate from vortex passageway 321 to vortex passageway 322, the passageway is by big diminishing gradually, the low frequency part of sound wave is extended once more, produce certain resistance simultaneously, then pass through vortex passageway 323 department, the passageway is crescent, the air current carries the propagation velocity of sound wave to cushion, be favorable to the propagation of sound wave, when the sound wave gets into vortex passageway 324 once more, the passageway is dwindled gradually, the low frequency part of sound wave obtains the extension once more, get into out sound hole 411 through vortex passageway 325 at last, the passageway is by little crescent, be favorable to the outside propagation of sound in vortex cavity 30, and increase the volume of sound under the prerequisite of low frequency effect.

Through the sound transmission channel 320, the bass enhancement type sound box can increase the low-frequency extension effect of the loudspeaker 20, thereby realizing the unprecedented low-frequency shocking effect under the same volume.

Referring to fig. 2-9, the wire channel 312 is disposed on the vortex chamber 30 and the wire channel 412 is disposed on the middle plate 40 to prevent the wires from falling into the sound transmission channels 321-325, thereby optimizing the wire arrangement device and avoiding interference in the process of sound wave transmission.

Referring to fig. 2-9, a circuit board 70 is disposed below the middle plate, a through hole is disposed on the circuit board 70, a screw passes through the through hole and is fixed on the stud 513, so that the circuit board is firmly and stably fixed on the base, a control circuit and an audio interface 71 are disposed on the circuit board 70, the audio interface 71 is mounted on a USB interface 512 on the base 50, the control circuit is configured to drive a speaker to generate sound according to an audio signal of the audio interface 71, and the circuit board 70 is located below the middle plate 40.

Referring to fig. 2-9, the periphery of the base 50 is provided with sound holes 511 for playing sound and dissipating heat of the circuit board 70, the base is further provided with a USB interface 512 for mounting the audio interface 71 on the circuit board, the base is further provided with positioning holes 514, key holes 515, key assembly fixing holes 516, screw holes 517 and screw posts 513, and the screws fix the base lock 50 on the middle plate 40 through the screw holes 517.

Referring to fig. 2-9, the present embodiment further includes a key assembly 80, the key assembly is provided with a key 821, the lower end of the key 821 is provided with a key boss, the key boss is connected to the control circuit through a key hole 515 on the base 50 for being operated by a person, the key assembly is further provided with a fixing boss 812 and a positioning boss 811, and the fixing boss 812 on the key assembly 50 is fastened to a key fixing hole 516 on the base 50 through a positioning relationship between the positioning boss 811 on the key assembly 80 and a positioning hole 514 on the base 50.

Referring to fig. 2-9, the present embodiment further includes a speaker supporting frame 60, an inner frame edge 611 and a limiting plane 612 are disposed in an upper portion 61 of the speaker supporting frame 60, and the limiting plane is used to limit the speaker from moving forward, wherein the inner frame edge 611, the limiting plane 612 and the speaker supporting frame 61 form a combination, there are only four supporting points between the inner frame edge 612 and the speaker supporting frame 61, and the four supporting points are uniformly distributed on the speaker supporting frame 61, so as to ensure the extensibility of the inner frame edge, and ensure the speaker 20 is firmly and stably fixed, and in addition, there are only four supporting pillars in a lower portion 62 of the speaker supporting frame, and the rest of the materials are removed, so as to reduce the cost and save the materials, and each supporting pillar is provided with a positioning boss 622, and the inner.

Referring to fig. 2-9, the vortex chamber 30 is screwed into the L-shaped clip 621 of the speaker support bracket 60 through the outer clip 313, and the positioning boss 622 of the speaker support bracket is tightly attached to the flange 314 of the vortex chamber 30.

Referring to fig. 2-9, the present embodiment further includes a battery 90 for supplying power to the components of the speaker box, wherein the battery 90 is located at the lower end of the speaker 20 and is mounted on the vortex chamber 30.

Referring to fig. 2-9, the upper end surface of the enclosure 10 is provided with small holes in an annular array, and the rest are all closed metal enclosures for protecting the speaker and the sound transmission, so that the enclosure is beautiful and simple.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a sound box, includes audio amplifier shell, speaker and base, its characterized in that: the loudspeaker box comprises a loudspeaker box shell and a base, and is characterized by further comprising a vortex cavity, an accommodating space is formed between the loudspeaker box shell and the base, the loudspeaker and the vortex cavity are installed in the accommodating space, and the vortex cavity is located below the loudspeaker.

2. An acoustic enclosure as claimed in claim 1, characterized in that: the vortex flow cavity is characterized in that a partition plate is arranged above the vortex flow cavity, a sound transmission channel is arranged below the partition plate, and a sound inlet hole is formed in the partition plate and is located at the initial position of the sound transmission channel.

3. An acoustic enclosure as claimed in claim 2, wherein: the sound transmission channel is a long channel formed by a first channel and a second channel.

4. An acoustic enclosure as claimed in claim 3, wherein: the channel starts from the sound inlet hole on the partition board and is a vortex channel gradually becoming smaller from the big, and the channel II is crossed and connected with the channel I and is a vortex channel gradually becoming larger from the small at the cross.

5. An acoustic enclosure as claimed in claim 2, wherein: the sound transmission channel is provided with a middle plate below, the middle plate is provided with a sound outlet hole, and the sound outlet hole is positioned at the tail end of the sound transmission channel.

6. An acoustic enclosure as claimed in claim 5, wherein: the middle plate is tightly attached to the vortex cavity body and forms a closed sound transmission channel with the vortex cavity body.

7. An acoustic enclosure as claimed in claim 6, wherein: the vortex cavity and the middle plate are both provided with wire channels, and the wire channels are positioned on the edges of the side walls.

8. An acoustic enclosure as claimed in claim 7, wherein: and a circuit board is arranged below the middle plate, and a control circuit and an audio interface are arranged on the circuit board.

9. An acoustic enclosure as claimed in claim 8, wherein: the circuit board is fixed on the base, and the base is provided with a key hole, a USB hole and a sound outlet hole.

10. An acoustic enclosure as claimed in claim 9, wherein: and a key assembly is arranged below the base.