CN215453249U - Device of adjustable audio amplifier low frequency - Google Patents
Device of adjustable audio amplifier low frequency Download PDFInfo
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- CN215453249U CN215453249U CN202121417769.5U CN202121417769U CN215453249U CN 215453249 U CN215453249 U CN 215453249U CN 202121417769 U CN202121417769 U CN 202121417769U CN 215453249 U CN215453249 U CN 215453249U
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Abstract
The utility model discloses a device capable of adjusting the low frequency of a sound box, which relates to the technical field of low frequency adjustment and comprises an outer box and a loudspeaker, wherein the loudspeaker is arranged at the upper end and the lower end of one side in the outer box, an adjusting structure is arranged at the middle position of the other side in the outer box, the adjusting structure comprises an electric box, the electric box is arranged at the middle position of the other side in the outer box, a sliding rheostat is arranged at one side in the electric box, a passive radiator is arranged on the inner wall of the outer box at one side of the electric box, and a coil magnet is arranged in the passive radiator. According to the utility model, the screw rod is rotated by rotating the rotating hand, so that the sleeve is driven to adjust the sliding rheostat, the current passing through the coil magnet is finally changed, the magnetic size of the coil magnet is changed, the resistance of the passive radiator during vibration is finally changed, the adjustment of low-frequency response is completed, and the problem that the low frequency cannot be adjusted is solved.
Description
Technical Field
The utility model relates to the technical field of low-frequency adjustment, in particular to a device capable of adjusting the low frequency of a sound box.
Background
The sound box is one of the most common sound equipment nowadays, and can convert an audio signal into sound, and simultaneously can amplify the audio signal, and the sound is played back by itself to make the sound become louder, wherein the low frequency effect is particularly important.
In the related art, the passive radiator is driven to vibrate by the vibration of the horn, so as to generate powerful bass and further increase the low-frequency effect.
However, when the above-mentioned low frequency effect is increased, free adjustment cannot be realized, so that only a single fixed effect can be generated, the feeling of people on different effects cannot be met, certain aesthetic fatigue can be caused, and even the outward playing experience of partial audio is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device capable of adjusting the low frequency of a sound box, which aims to solve the problem that the low frequency effect cannot be adjusted in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an apparatus for adjusting the low frequency of an enclosure, comprising:
an outer box;
a mesh disposed on one side of the outer carton;
the loudspeaker is arranged at the upper end and the lower end of one side in the outer box;
the adjusting structure is arranged at the middle position of the other side in the outer box, the adjusting structure comprises an electric box, the electric box is arranged at the middle position of the other side in the outer box, a sliding rheostat is arranged at one side in the electric box, a passive radiator is arranged on the inner wall of the outer box at one side of the electric box, a coil magnet is arranged in the passive radiator, and the coil magnet is connected with the sliding rheostat through a lead;
the reinforcing structure, the reinforcing structure sets up inside the outer container at loudspeaker both ends, the reinforcing structure includes the baffle, shakes circle and passive basin, the baffle is installed inside the outer container at loudspeaker both ends, and has the passive basin through the support mounting in one side of baffle, the circle is shaken to the outer wall installation of passive basin.
Preferably, the upper end and the lower extreme of outer container opposite side have all been seted up the through-hole, and the filter screen is installed to the inside one side of through-hole.
Preferably, the passive basin and the vibrating ring are combined to form a passive loudspeaker, and an air cavity is formed between the passive basin and the vibrating ring and the partition plate.
Preferably, one side in the electric box is rotatably connected with a screw rod, and the outer wall of the screw rod is rotatably connected with a sleeve.
Preferably, a first bevel gear disc is installed at the bottom end of the outer wall of the screw rod, and a second bevel gear disc is arranged inside the electric box on one side of the first bevel gear disc.
Preferably, the second bevel gear disc and the first bevel gear disc are meshed with each other, and the second bevel gear disc is located above the first bevel gear disc.
Preferably, the side wall of the outer box on one side of the screw rod is rotatably connected with a rotating hand, and one end of the rotating hand penetrates through the electric box and is connected with the second bevel gear disc.
Preferably, the sleeve is fixedly connected with the adjusting head on one side of the slide rheostat, and the sleeve forms a sliding connection in the electric box.
Compared with the related art, the device for adjusting the low frequency of the sound box provided by the utility model has the following beneficial effects:
the utility model provides a rotating hand, a second bevel gear disc, a first bevel gear disc, a screw rod, a sleeve, a sliding rheostat, a coil magnet and a passive radiator, wherein the rotating hand is rotated to drive the second bevel gear disc to rotate, so that the second bevel gear disc is meshed with the first bevel gear disc, the first bevel gear disc is driven to rotate the screw rod, the sleeve is driven to adjust the sliding rheostat, the current passing through the coil magnet is finally changed, the magnetic size of the coil magnet is changed, the resistance of the passive radiator during vibration is finally changed, the adjustment of low-frequency response is completed, and the problem that the low frequency cannot be adjusted is solved. Thereby the effect of low frequency has been improved greatly, and the filter screen has completely cut off external dust simultaneously for the better through-hole entering of external gas, thereby solved the not good problem of low frequency effect.
Drawings
FIG. 1 is a schematic front view, cross-sectional view of a first embodiment of an apparatus for adjusting a low frequency of a loudspeaker according to the present invention;
FIG. 2 is a schematic side view, cross-sectional structure of a first embodiment of the device for adjusting the low frequency of a loudspeaker according to the present invention;
FIG. 3 is a schematic top sectional view of a first embodiment of the device for adjusting the low frequency of a loudspeaker according to the present invention;
FIG. 4 is a schematic front view, cross-sectional view of a first embodiment of the apparatus for adjusting the low frequency of a loudspeaker according to the present invention;
fig. 5 is an enlarged schematic view of the utility model at a in fig. 1.
In the figure:
1. an outer box;
2. a mesh;
3. a horn;
4. a passive radiator;
5. a coil magnet;
6. a reinforcing structure; 601. a partition plate; 602. vibrating the ring; 603. a passive basin;
7. a filter screen;
8. turning the hand;
9. a through hole;
10. an electric box;
11. a slide rheostat;
12. a first bevel gear plate;
13. a second bevel gear plate;
14. a screw rod;
15. a sleeve.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
First embodiment
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, fig. 1 is a schematic front sectional view illustrating a first embodiment of an apparatus for adjusting a low frequency of a sound box according to the present invention; FIG. 2 is a schematic side view, cross-sectional structure of a first embodiment of the device for adjusting the low frequency of a loudspeaker according to the present invention; FIG. 3 is a schematic top sectional view of a first embodiment of the device for adjusting the low frequency of a loudspeaker according to the present invention; FIG. 4 is a schematic front view, cross-sectional view of a first embodiment of the apparatus for adjusting the low frequency of a loudspeaker according to the present invention; fig. 5 is an enlarged schematic view of the utility model at a in fig. 1.
An apparatus for adjusting the low frequency of an enclosure, comprising:
an outer case 1;
the mesh 2 is arranged on one side of the outer box 1;
the loudspeaker 3 is arranged at the upper end and the lower end of one side in the outer box 1;
the adjusting structure is arranged at the middle position of the other side in the outer box 1, the adjusting structure comprises an electric box 10, the electric box 10 is arranged at the middle position of the other side in the outer box 1, a sliding rheostat 11 is arranged at one side in the electric box 10, a passive radiator 4 is arranged on the inner wall of the outer box 1 at one side of the electric box 10, a coil magnet 5 is arranged in the passive radiator 4, and the coil magnet 5 is connected with the sliding rheostat 11 through a lead;
a screw rod 14 is rotatably connected to one side inside the electric box 10, and a sleeve 15 is rotatably connected to the outer wall of the screw rod 14;
a first bevel gear disc 12 is mounted at the bottom end of the outer wall of the screw rod 14, and a second bevel gear disc 13 is arranged inside the electric box 10 on one side of the first bevel gear disc 12;
the second bevel gear disc 13 and the first bevel gear disc 12 are meshed with each other, and the second bevel gear disc 13 is positioned above the first bevel gear disc 12;
the side wall of the outer box 1 at one side of the screw rod 14 is rotatably connected with a rotating hand 8, and one end of the rotating hand 8 penetrates through the electric box 10 to be connected with a second bevel gear disc 13;
the sleeve 15 is fixedly connected with the adjusting head at one side of the slide rheostat 11, and the sleeve 15 forms sliding connection in the electric box 10;
specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, when the low frequency band needs to be adjusted, the rotating handle 8 is rotated to drive the second bevel gear disc 13 to rotate, so that the second bevel gear disc 13 is engaged with the first bevel gear disc 12, the first bevel gear disc 12 is driven to rotate the lead screw 14, the sleeve 15 is driven to adjust the sliding rheostat 11, the current passing through the coil magnet 5 is finally changed, the magnetic size of the coil magnet 5 is changed, the resistance of the passive radiator 4 during vibration is finally changed, and the adjustment of the low frequency response is completed.
The reinforcing structure 6 is arranged inside the outer boxes 1 at two ends of the loudspeaker 3, the reinforcing structure 6 comprises a partition plate 601, a vibrating ring 602 and a driven basin 603, the partition plate 601 is arranged inside the outer boxes 1 at two ends of the loudspeaker 3, the driven basin 603 is arranged on one side of the partition plate 601 through a support, and the vibrating ring 602 is arranged on the outer wall of the driven basin 603;
the upper end and the lower end of the other side of the outer box 1 are both provided with through holes 9, and a filter screen 7 is arranged on one side inside the through holes 9;
the passive basin 603 and the vibrating ring 602 are combined to form a passive loudspeaker, and an air cavity is formed between the passive basin 603 and the vibrating ring 602 and the partition board 601;
specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, firstly, by the principle of vibration of the horn 3 and compression and expansion of air, the effective vibration area of a single horn 3 becomes the effective vibration area of two passive basins 603, so that the low-frequency effect is greatly improved, and meanwhile, the filter screen 7 isolates external dust, so that external air can better enter through the through holes 9.
The working principle is as follows: when the device is used, the installation of the device is firstly completed;
by the vibration of the horn 3 and the compression and expansion principle of air, the effective vibration area of a single horn 3 is changed into the effective vibration areas of the two passive basins 603, so that the low-frequency effect is greatly improved;
the filter screen 7 isolates external dust, so that external gas can better enter through the through hole 9.
The rotating handle 8 is rotated to drive the second bevel gear disc 13 to rotate, so that the second bevel gear disc 13 is meshed with the first bevel gear disc 12, the first bevel gear disc 12 is driven to rotate the screw rod 14, and the sleeve 15 is driven to adjust the slide rheostat 11;
the change of the slide rheostat 11 changes the current passing through the coil magnet 5, so that the magnetic size of the coil magnet 5 is changed, and finally, the resistance of the passive radiator 4 during vibration is changed, and the adjustment of low-frequency response is completed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An apparatus for adjusting the low frequency of a speaker, comprising:
an outer box;
a mesh disposed on one side of the outer carton;
the loudspeaker is arranged at the upper end and the lower end of one side in the outer box;
the adjusting structure is arranged at the middle position of the other side in the outer box, the adjusting structure comprises an electric box, the electric box is arranged at the middle position of the other side in the outer box, a sliding rheostat is arranged at one side in the electric box, a passive radiator is arranged on the inner wall of the outer box at one side of the electric box, a coil magnet is arranged in the passive radiator, and the coil magnet is connected with the sliding rheostat through a lead;
the reinforcing structure, the reinforcing structure sets up inside the outer container at loudspeaker both ends, the reinforcing structure includes the baffle, shakes circle and passive basin, the baffle is installed inside the outer container at loudspeaker both ends, and has the passive basin through the support mounting in one side of baffle, the circle is shaken to the outer wall installation of passive basin.
2. The apparatus of claim 1, wherein the means for adjusting the bass frequency of the speaker comprises: the upper end and the lower extreme of outer container opposite side have all been seted up the through-hole, and the filter screen is installed to the inside one side of through-hole.
3. The apparatus of claim 1, wherein the means for adjusting the bass frequency of the speaker comprises: the passive cone and the vibrating ring are combined to form a passive loudspeaker, and an air cavity is formed between the passive cone and the vibrating ring and the partition plate.
4. The apparatus of claim 1, wherein the means for adjusting the bass frequency of the speaker comprises: one side in the electric box is rotatably connected with a screw rod, and the outer wall of the screw rod is rotatably connected with a sleeve.
5. The apparatus of claim 4, wherein the means for adjusting the bass frequency of the speaker comprises: a first bevel gear disc is installed at the bottom end of the outer wall of the screw rod, and a second bevel gear disc is arranged inside the electric box on one side of the first bevel gear disc.
6. The apparatus of claim 5, wherein the means for adjusting the bass frequency of the speaker comprises: the second bevel gear disc and the first bevel gear disc are meshed with each other, and the second bevel gear disc is located above the first bevel gear disc.
7. The apparatus of claim 4, wherein the means for adjusting the bass frequency of the speaker comprises: the outer container lateral wall of lead screw one side rotates and is connected with the rotary hand, and the one end of rotary hand runs through the electronic box and links to each other with the second bevel gear dish.
8. The apparatus of claim 4, wherein the means for adjusting the bass frequency of the speaker comprises: the sleeve is fixedly connected with the adjusting head on one side of the slide rheostat, and the sleeve is in sliding connection in the electric box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121417769.5U CN215453249U (en) | 2021-06-25 | 2021-06-25 | Device of adjustable audio amplifier low frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121417769.5U CN215453249U (en) | 2021-06-25 | 2021-06-25 | Device of adjustable audio amplifier low frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215453249U true CN215453249U (en) | 2022-01-07 |
Family
ID=79713082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121417769.5U Active CN215453249U (en) | 2021-06-25 | 2021-06-25 | Device of adjustable audio amplifier low frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215453249U (en) |
-
2021
- 2021-06-25 CN CN202121417769.5U patent/CN215453249U/en active Active
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