CN218041681U - Sound effect enhancing device and sound box - Google Patents

Abstract

The utility model discloses a audio reinforcing means and audio amplifier, audio reinforcing means is used for installing on the audio amplifier and is located the box of audio amplifier, audio reinforcing means includes casing assembly and two passive vibrating diaphragms, casing assembly includes shell and baffle, the shell has the holding tank that is used for with the outside gas intercommunication, the baffle is located the holding tank and separates the holding tank for the sound production cavity that two intervals set up, the shell still sets up two trompils that communicate with two sound production cavities respectively, two passive vibrating diaphragms are installed respectively on two trompils. The utility model discloses a baffle separates the holding tank for two spaced sound production cavitys, when two passive vibrating diaphragms promote with the air current in the space, because the baffle can separate the low frequency offset that two passive vibrating diaphragms sent and produce the phenomenon of offsetting each other, makes its sound production efficiency higher, and has effectively utilized the inner space of box, makes the volume of box can further reduce, does not rely on the area of box surface, and the audio amplifier appearance can be more pleasing to the eye.

Description

Sound effect enhancing device and sound box

Technical Field

The utility model relates to an audio amplifier technical field especially relates to an audio reinforcing means and audio amplifier.

Background

The loudspeaker box comprises a box body which is provided with a loudspeaker and a passive vibrating diaphragm, the passive vibrating diaphragm can synchronously move due to the sound produced by the loudspeaker, and under the impact of air flow produced by the loudspeaker with different frequencies, the passive vibrating diaphragm can bounce back and forth, so that the loudspeaker box emits low frequency surge.

The audio amplifier wants to obtain sufficient low frequency, just must have enough big loudspeaker bore and the resonant cavity that corresponds, so the volume of audio amplifier all can be bigger, and the effectual vibration area who enlarges the audio amplifier of passive vibrating diaphragm, uses passive vibrating diaphragm on little audio amplifier, and little audio amplifier also can send the low frequency of surge.

The miniaturization of loudspeaker boxes has become a trend, the size of the low-frequency sound of loudspeaker boxes depends on the vibration area of the passive vibrating diaphragm to a great extent, however, the passive vibrating diaphragm is arranged on the surface of the loudspeaker box in the prior art, so that the minimum area of the loudspeaker boxes is limited, the loudspeaker boxes provided with the passive vibrating diaphragms cannot further reduce the volume, and the loudspeaker boxes with limited volumes and limited exposed surfaces cannot use the passive vibrating diaphragms.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sound reinforcing means and audio amplifier to solve current audio amplifier and all will be passive vibrating diaphragm setting in audio amplifier surface position, thereby limited the minimum area of audio amplifier, make the audio amplifier that is equipped with passive vibrating diaphragm can't further reduce the volume, also lead to some volume limited, expose the unable technical problem who uses passive vibrating diaphragm of surperficial limited audio amplifier.

The utility model provides an audio reinforcing means for install on the audio amplifier, audio reinforcing means is located the box of audio amplifier, audio reinforcing means includes:

the shell assembly comprises a shell and a partition plate, the shell is provided with a containing groove communicated with external air, the partition plate is positioned in the containing groove and divides the containing groove into two sounding cavities which are arranged at intervals and are communicated with the external air, and the shell is further provided with two openings which are respectively communicated with the two sounding cavities;

and the two passive vibrating diaphragms are respectively arranged on the two openings.

Further, the two openings are respectively formed in two outer wall surfaces of the housing, which are arranged oppositely.

Further, the two openings are coaxially arranged.

Furthermore, the shell comprises a support plate and a convex block which is convexly arranged on one side surface of the support plate, and the accommodating groove is concavely arranged from one side surface of the support plate, which is far away from the convex block, towards the convex block and extends into the convex block; the opening is formed in the bump.

Furthermore, the support plate is provided with a plurality of through holes for installation in a penetrating manner, and each through hole is annularly arranged on the periphery of the bump.

Furthermore, one surface of the partition board facing the passive diaphragm is an arc surface or a plane.

The utility model also discloses an audio amplifier, include box, woofer, high pitch loudspeaker and as aforesaid the audio enhancement device, woofer and high pitch loudspeaker all install in on the box, the box runs through and is equipped with the mounting hole, the audio enhancement device is fixed in on the mounting hole and be located inside the box.

Further, woofer and tweeter are all located on the same side of box, woofer is located tweeter's top, the audio reinforcing means is located on the another side of box.

Furthermore, the sound effect enhancing device and the woofer are located on two opposite sides of the box body and are arranged oppositely.

Furthermore, the sound box also comprises a first net cover plate, and the first net cover plate is arranged on the box body and covers the mounting hole; and/or the presence of a gas in the atmosphere,

the audio amplifier still includes second net apron, second net apron install in on the box and cover in woofer with tweeter.

Compared with the prior art, the beneficial effects of the utility model include at least:

the utility model discloses a be equipped with a baffle in the casing subassembly of audio reinforcing means, separate the holding tank for the sound production cavity that two intervals set up, when two passive diaphragms are promoted by the air current in the same space, two passive diaphragms can vibrate simultaneously, because the baffle can separate the low frequency offset that two passive diaphragms sent and produce the phenomenon of offsetting each other, the low frequency that two passive diaphragms produced can be released to the outside of audio amplifier by two sound production cavities respectively, two low frequencies can superpose, make sound increase, the sound production efficiency is higher;

and when the audio enhancement device is located the box of audio amplifier after, audio enhancement device's holding tank and outside gaseous intercommunication, the outside of audio amplifier is released through two sound production cavitys respectively to the low frequency that two passive vibrating diaphragms during operation produced, has effectively utilized the inner space of box, makes the volume of box can further reduce, does not rely on the area of box surface, and the audio amplifier appearance can be more pleasing to the eye, can send abundant low frequency simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a sound effect enhancing device according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural diagram of a housing assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a sound box according to an embodiment of the present invention;

FIG. 5 is an exploded view of FIG. 4;

fig. 6 is a schematic structural diagram of a sound box according to an embodiment of the present invention;

FIG. 7 is an exploded view of FIG. 6;

fig. 8 is a schematic structural view of the sound box provided in the embodiment of the present invention after the sound effect enhancing device and the first mesh cover plate are removed;

fig. 9 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 8.

In the figure:

10. a sound effect enhancing device; 11. a housing assembly; 111. a housing; 1111. accommodating grooves; 1112. a sounding cavity; 1113. opening a hole; 1114. a support plate; 1115. a bump; 1116. a through hole; 112. a partition plate; 12. a passive diaphragm; 121. a diaphragm body; 122. folding the ring; 20. a box body; 21. mounting holes; 22. a first accommodating space; 23. a second accommodating space; 24. a first embedding port; 25. a second inlet; 26. a third embedding port; 30. a woofer; 40. a high pitch loudspeaker; 50. a first mesh cover plate; 60. a control unit; 70. a second mesh cover plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1 to 3 and fig. 7, an embodiment of the present invention discloses a sound effect enhancing device 10, which is installed on a sound box and located in a box body 20 of the sound box, the sound effect enhancing device 10 includes a housing component 11 and two passive diaphragms 12, and the two passive diaphragms 12 are all fixed on the housing component 11.

In this embodiment, casing subassembly 11 includes shell 111 and baffle 112, shell 111 can be the preparation of stereoplasm material, for example plastic or iron sheet, shell 111 has holding tank 1111, holding tank 1111 is used for and outside gaseous intercommunication, baffle 112 is located holding tank 1111 and is fixed in on the inner wall of holding tank 1111, baffle 112 separates holding tank 1111 for the sound production cavity 1112 that two intervals set up, the shape of two sound production cavities 1112 can be the same or inequality, the shape of two sound production cavities 1112 is the same in this embodiment, two sound production cavities 1112 all communicate with outside gas, shell 111 has still seted up two respectively with two the trompil 1113 of sound production cavity 1112 intercommunication.

Two passive vibrating diaphragms 12 are installed respectively on two trompils 1113, two passive vibrating diaphragms 12 can be circular or square, its shape is decided according to the shape of trompil 1113, when two passive vibrating diaphragms 12 are promoted by the air current in with the space, two passive vibrating diaphragms 12 can vibrate simultaneously, owing to there is the partition of baffle 112, the produced low frequency of two passive vibrating diaphragms 12 can be released the outside of audio amplifier by two sound production cavities 1112 respectively, two low frequencies can superpose, make sound increase, the sound production efficiency is higher.

It should be noted that, if the partition plate 112 is not disposed in the accommodating groove 1111, under the pushing of the air flow in the same space, the phases of the low frequencies emitted by the two passive diaphragms 12 are opposite, although the low frequencies generated by the two passive diaphragms 12 may also be superimposed, because the two passive diaphragms 12 are disposed oppositely, the two emitted low frequency air flows will directly generate the counter-impact phenomenon after coming out from the two passive diaphragms 12, and a part of the sound will be offset during the counter-impact, thereby reducing the sound-generating efficiency of the two passive diaphragms 12.

In this embodiment, the partition plate 112 is disposed in the accommodating groove 1111, and low frequencies generated by the two passive diaphragms 12 are respectively guided into the two sound-generating cavities 1112, and the low frequencies generated by the two passive diaphragms 12 can be respectively discharged from the two sound-generating cavities 1112 after being refracted by the partition plate 112, although the refraction of the partition plate 112 can also cancel a part of sound, the problem of air current hedging (acoustic phase cancellation) caused by the installation positions of the two passive diaphragms 12 is thoroughly solved, the two sound-generating cavities 1112 do not interfere with each other, the sound cancelled by the partition plate 112 is less than that without the partition plate 112, the sound is corresponding to a larger sound, and the efficiency of the passive diaphragms 12 is greatly improved.

In a preferred embodiment, two openings 1113 are respectively opened on two opposite outer wall surfaces of the housing 111, and the two openings 1113 are coaxially arranged, so that the two passive diaphragms 12 have the same vibration amplitude and can radiate outwards to generate a clearer low frequency.

Of course, because of the arrangement of the partition 112, the low frequencies emitted by the two passive diaphragms 12 in the two sound-emitting cavities 1112 are independent, and the two passive diaphragms 12 may not be arranged on the same axis, and the effect generated by the two passive diaphragms 12 radiating outwards is slightly worse than that generated by the sound-effect enhancing device 10 in this embodiment, in which the two passive diaphragms 12 are arranged on the same axis.

In this embodiment, the housing 111 includes a support plate 1114 and a protrusion 1115 protruding from a side of the support plate 1114, the protrusion 1115 may be square, semicircular or ice cream, the receiving groove 1111 is recessed from a side of the support plate 1114 away from the protrusion 1115 toward the protrusion 1115 and extends into the protrusion 1115, the opening 1113 is disposed on the protrusion 1115, the partition plate 112 is fixed on an inner wall of the receiving groove 1111, and the partition plate 112 and the housing 111 are integrally formed, so as to reduce the manufacturing cost of the sound enhancement device 10.

In a preferred embodiment, the support 1114 has a plurality of through holes 1116 for installation, each through hole 1116 is disposed around the outer periphery of a corresponding protrusion 1115, the through holes 1116 are used for screws to pass through so as to fix the housing 111 to the case 20, the shape of the support 1114 is not limited, and the support 1114 may be circular, square, triangular, or the like.

In this embodiment, a concave arc surface is disposed on a surface of the partition plate 112 facing the passive diaphragm 12, so that the low frequency emitted by the passive diaphragm 12 can be quickly guided out from the sound-generating cavity 1112, and the arc surface plays a role of guiding the flow, thereby further reducing the noise reduction effect of the partition plate 112 on the passive diaphragm 12.

Of course, the side of the partition 112 facing the passive diaphragm 12 may also be a plane, and the low frequency emitted by the passive diaphragm 12 can also be quickly led out from the sound-generating cavity 1112, but the effect is inferior to that of the arc-shaped surface.

In this embodiment, the passive diaphragm 12 includes a diaphragm body 121 and a ring 122, the ring 122 is annular, and the diaphragm body 121 is fixed on the opening 1113 through the ring 122 to realize sound production.

Please further refer to fig. 4 to 9, the present invention further discloses a sound box, which comprises a box body 20, a woofer 30, a tweeter 40 and the sound effect enhancing device 10 as described above, wherein the woofer 30 and the tweeter 40 are both installed on the box body 20, the box body 20 is provided with a mounting hole 21 in a penetrating manner, the sound effect enhancing device 10 is fixed on the mounting hole 21 and is located inside the box body 20, the low frequency generated by the working of two passive diaphragms 12 in the sound effect enhancing device 10 of the present embodiment can be respectively released to the outside of the sound box through two sound-emitting cavities 1112, the internal space of the box body 20 is effectively utilized, and the sound box does not depend on the area of the outer surface of the box body 20.

The woofer 30 and the tweeter 40 are both disposed on the same side of the cabinet 20, the woofer 30 is located above the tweeter 40, the sound enhancement device 10 is disposed on the other side of the cabinet 20, sound waves generated by the tweeter 40 can be directly discharged out of the cabinet 20, and sound waves generated by the woofer 30 can compress airflow in the cabinet 20 to push airflow in the cabinet 20 to flow, so as to push the two passive diaphragms 12 to vibrate.

Neither tweeter 40 nor woofer 30 has a back volume design, and sound generated by tweeter 40 is diffused directly out of cabinet 20 without interference between tweeter 40 and woofer 30.

In this embodiment, the sound effect enhancing device 10 and the woofer 30 are located the relative both sides of the box 20 and just to setting up, the sound effect enhancing device 10 and the woofer 30 are located the same axis, the sound effect enhancing device 10 is located the woofer 30 directly behind, two passive vibrating diaphragms 12 in the sound effect enhancing device 10 can transversely set up, certainly also can vertically set up, as long as can guarantee that the distance between the woofer 30 to two passive vibrating diaphragms 12 equals, so that two passive vibrating diaphragms 12 vibrate at the same time, produce clear low frequency.

The sound effect enhancing device 10 of the present embodiment adopts the passive diaphragms 12 installed symmetrically, and the two passive diaphragms 12 are driven by the low-frequency sound waves generated by the woofer 30 to generate vibration, and the vibration amplitudes of the two passive diaphragms 12 are the same, and the directions are opposite, and the vibration force is completely offset, so that the whole cabinet 20 has very small mechanical vibration and no mechanical vibration displacement.

Certainly, the sound effect enhancing device 10 in this embodiment may also be disposed at other positions of the box 20, for example, the top or the bottom of the sound box, the distance between the woofer 30 and the two passive diaphragms 12 may also be unequal, under the unequal working condition of the distance, there may be a little time difference when the two passive diaphragms 12 produce sound, theoretically, the sound production effect is worse than the effect that the distance between the woofer 30 and the two passive diaphragms 12 is equal before, but because the propagation speed of sound is very fast, 340m/s can be reached, as long as within 35 milliseconds, it is not indiscernible that the human ear of a very professional is, thus, the installation position of the sound effect enhancing device 10 may be more flexible.

In a preferred embodiment, the sound enhancement device 10 is mounted on the mounting hole 21 from the outside of the cabinet 20 to facilitate later maintenance removal.

The sound box further comprises a first net cover plate 50, the first net cover plate 50 is installed on the box body 20 and covers the installation hole 21, and the first net cover plate 50 can prevent external objects from damaging the passive vibrating diaphragm 12.

The loudspeaker further comprises a control unit 60, the control unit 60 is fixed on the cabinet 20, the woofer 30 and the tweeter 40 are electrically connected to the control unit 60, and the control unit 60 is used for connecting to an external power source and external electronic equipment.

The speaker box further includes a second mesh cover 70, the second mesh cover 70 is mounted on the box body 20 and covers the woofer 30 and the tweeter 40, the second mesh cover 70 prevents external objects from damaging the woofer 30 and the tweeter 40, and the second mesh cover 70 is made of gauze in fig. 5.

With reference to fig. 5, fig. 7 and fig. 9, the case 20 has a first accommodating space 22 and a second accommodating space 23 spaced from the first accommodating space 22, the case 20 further has a first insertion opening 24, a second insertion opening 25 and a third insertion opening 26, the woofer 30 and the tweeter 40 are respectively mounted on the first insertion opening 24 and the second insertion opening 25, the first insertion opening 24 and the second insertion opening 25 are communicated with the first accommodating space 22, the control unit 60 is mounted on the third insertion opening 26, the third insertion opening 26 is communicated with the second accommodating space 23, the sound enhancement device 10, the woofer 30, the tweeter 40 and a portion of the case 20 form a sealed space, the woofer 30 compresses the air flow in the sealed space, and prevents other components from affecting the vibration amplitudes of the two passive diaphragms 12.

The utility model discloses but be equipped with two-sided extrusion formula audio reinforcing means 10 in the audio amplifier, woofer 30 is the initiative speaker, the produced sound wave of woofer 30 can compress the air current in the box 20, promote the air current in the box 20 to flow, vibrate in order to promote two passive vibrating diaphragms 12, the air jet that air formed higher volumetric speed in the narrow space of passive vibrating diaphragm 12 extrusion goes out, radiate out the low frequency sound wave, because passive vibrating diaphragm 12 is installed inside the audio amplifier, so only need very little area occupied on the audio amplifier surface, relatively be applicable to little volume audio amplifier, and passive vibrating diaphragm 12 area can be done greatly, and it doubles to be two-sided vibrating diaphragm area, utilize less linear amplitude just can effectually conduct away the vibration of sound production cavity 1112 inside air, can produce higher volumetric speed radiation out low frequency sound wave.

To sum up, the utility model discloses a be equipped with a baffle 112 in casing assembly 11 of audio reinforcing means 10, separate holding tank 1111 for the sound production cavity 1112 that two intervals set up, when two passive vibrating diaphragms 12 are promoted by the air current in with the space, two passive vibrating diaphragms 12 can vibrate simultaneously, owing to there is the separation of baffle 112, baffle 112 can separate the low frequency offset that two passive vibrating diaphragms 12 sent and produce the phenomenon of offsetting each other, the produced low frequency of two passive vibrating diaphragms 12 can be released the outside of audio amplifier by two sound production cavities 1112 respectively, two low frequencies can superpose, make the sound increase, the sound production efficiency is higher.

And after the sound effect enhancing device 10 is located in the box 20, the holding tank 1111 of the sound effect enhancing device 10 is communicated with the outside air, and the low frequencies generated by the two passive diaphragms 12 during operation are respectively released to the outside of the sound box through the two sounding cavities 1112, thereby effectively utilizing the internal space of the box 20, further reducing the volume of the box 20, not depending on the area of the outer surface of the box 20, making the appearance of the sound box more beautiful, and simultaneously emitting abundant low frequencies.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides an audio reinforcing means for install on the audio amplifier, its characterized in that, audio reinforcing means is located the box of audio amplifier, audio reinforcing means includes:

the shell comprises a shell body and a partition plate, wherein the shell body is provided with an accommodating groove used for being communicated with external air, the partition plate is positioned in the accommodating groove and divides the accommodating groove into two sounding cavities which are arranged at intervals and are communicated with the external air, and the shell is also provided with two open holes which are respectively communicated with the two sounding cavities;

two passive vibrating diaphragms, two the passive vibrating diaphragm install respectively in two on the trompil.

2. The sound enhancement device of claim 1 wherein the openings are formed in two opposing outer walls of the housing.

3. The sound enhancement device of claim 1 wherein the openings are coaxial.

4. The sound-effect enhancement device according to claim 1, wherein the casing comprises a support plate and a protrusion protruding from a side of the support plate, and the receiving groove is recessed from a side of the support plate away from the protrusion toward the protrusion and extends into the protrusion; the opening is formed in the bump.

5. The sound effect enhancement device of claim 4 wherein a plurality of through holes for mounting are formed through the support plate, each through hole being formed around the periphery of the protrusion.

6. The sound enhancement device of claim 1 wherein the side of the spacer facing the passive diaphragm is curved or flat.

7. An audio enclosure comprising a cabinet, a woofer, a tweeter, and the sound enhancement apparatus of any one of claims 1 to 6, the woofer and the tweeter being mounted to the cabinet, the cabinet having mounting holes therethrough, the sound enhancement apparatus being secured to the mounting holes and located within the cabinet.

8. An enclosure as claimed in claim 7, wherein the woofer and tweeter are both provided on the same side of the enclosure, the woofer being located above the tweeter, the sound-enhancement means being provided on the other side of the enclosure.

9. An enclosure as claimed in claim 7 in which the sound-enhancement means are located opposite the woofer on opposite sides of the enclosure.

10. The sound box of claim 7, further comprising a first mesh cover plate mounted on the box body and covering the mounting hole; and/or the presence of a gas in the atmosphere,

the loudspeaker box further comprises a second net cover plate, and the second net cover plate is installed on the box body and covers the bass loudspeaker and the treble loudspeaker.

Images