CN217522948U

CN217522948U - Horn device for reducing resonance of box body caused by horn

Info

Publication number: CN217522948U
Application number: CN202221617420.0U
Authority: CN
Inventors: 张小梅
Original assignee: Huizhou Jielin Photoelectric Co ltd
Current assignee: Huizhou Jielin Photoelectric Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-30
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a horn device for reducing box resonance caused by horn, belonging to the technical field of horn, the device comprises a horn box body, a horn and a mounting plate, wherein the horn screw is fixed on the mounting plate, a through groove is arranged on the horn box body, the mounting plate is positioned in the through groove, the mounting plate is elastically connected with the horn box body, a dustproof frame is also arranged inside the horn box body, the dustproof frame covers the whole horn, and a wire hole is arranged on the dustproof frame away from the horn end; the device avoids resonance generation through the damping through setting up a plurality of coupling spring between loudspeaker and loudspeaker box, and conveniently dismantles between loudspeaker and the loudspeaker box, the installation of being convenient for.

Description

Horn device for reducing resonance of box body caused by horn

Technical Field

The utility model belongs to the technical field of loudspeaker, especially, relate to a reduce loudspeaker and arouse resonant loudspeaker device of box.

Background

When the transcranial Doppler ultrasonic examination is carried out, the sound emitted by the loudspeaker causes self vibration, the vibration is transmitted to the box body, the box body is easy to resonate, images and sound acquired by transcranial Doppler equipment can be interfered, noise is brought, and the performance of a product is seriously influenced. Currently, the following methods are generally used to avoid harmful resonance:

one way is to increase the strength and stiffness of the horn securing plate, such as by increasing the thickness of the horn securing plate (as shown in fig. 1 and 2), or by replacing the stronger and stiffer material. This approach, however, wastes material and adds weight and cost to the product.

Another way is to increase the strength and rigidity of the entire box structure, which also increases the weight and cost of the product, and such a structure is also not reasonable, making the product too bulky.

There is also a need to design a special mechanical structure, which affects the aesthetic appearance of the product, the layout of the components installed inside, and the difficulty and cost of the design.

For the above reasons, when designing a fixing structure of a horn, it is necessary to consider what kind of horn is used, such as the power and size of the horn, and determine the installation position, and after determining, the fixing position of the horn cannot be changed arbitrarily, and the fixing position of the horn cannot be changed arbitrarily, otherwise resonance is easily generated. Especially, in some cases with sheet metal structures, the same horn may be installed at different positions of the same case, or the horn with different power may be replaced at the same position to generate resonance.

In summary, the conventional structure is to fix the speaker directly on a fixing plate, and it is necessary to ensure that the fixing plate and the surrounding area have sufficient strength and rigidity, otherwise, resonance is easily generated, which makes the product too heavy, greatly increases the material cost, and may result in an unattractive product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce loudspeaker and arouse resonant loudspeaker device of box, the device avoids resonance to produce through the damping through setting up a plurality of coupling spring between loudspeaker and loudspeaker box, and convenient the dismantlement between loudspeaker and the loudspeaker box, the installation of being convenient for.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a reduce loudspeaker and arouse resonant loudspeaker device of box, this reduce loudspeaker and arouse resonant loudspeaker device of box includes loudspeaker box, loudspeaker, mounting panel, the loudspeaker screw fixation has seted up logical groove on the mounting panel on the loudspeaker box, the mounting panel is located logical inslot, elastic connection between mounting panel and the loudspeaker box, and loudspeaker box is inside still to be equipped with dustproof frame, and dustproof frame covers whole loudspeaker, and dustproof frame keeps away from the loudspeaker end and has seted up the wire guide.

Furthermore, the mounting panel is provided with a through hole, the through hole is welded with a connecting lug towards the inside of the horn box body, the through groove is fixedly provided with a connecting block, a connecting spring is fixedly connected between the connecting lug and the connecting block, and the connecting lug is provided with a plurality of connecting lugs along the circumferential direction of the through groove.

Furthermore, the end, far away from the mounting plate, of the connecting lug plate is connected with a connecting nut in a welding manner.

Furthermore, both ends are connected with the dust collecting channel about the dustproof frame, and the dust collecting channel communicates with the dustproof frame, and the dust collecting channel is equipped with the derivation groove of seting up on the loudspeaker box body towards the outside side of loudspeaker box body.

Furthermore, the guide-out groove is internally hinged with a baffle plate, and the baffle plate is magnetically attracted with the loudspeaker box body.

The utility model has the advantages that:

1. this reduce loudspeaker and arouse resonant loudspeaker device of box, fix on the mounting panel at the loudspeaker screw, seted up logical groove on the loudspeaker box, the mounting panel is located logical inslot, through a plurality of coupling spring connection between mounting panel and the loudspeaker box, at loudspeaker during operation, can carry out the damping, avoids resonating.

2. This reduce loudspeaker and arouse resonant loudspeaker device of box, at the inside dustproof frame that sets up of loudspeaker box, both ends are connected with the dust and collect the passageway about the dustproof frame, the dust is collected passageway and dustproof frame intercommunication, the dust is collected the passageway and is equipped with the derivation groove of seting up on loudspeaker box towards the outside side of loudspeaker box, carry out the dust through dustproof frame and collect, collect the back dust and fall into the dust and collect inside the passageway, simultaneously to certain time collecting, can open the baffle, make things convenient for the dust to collect and derive, avoid the inside dust of loudspeaker box to gather too much, influence the loudspeaker function.

Drawings

Fig. 1 is a schematic structural diagram of a horn device for reducing resonance of a box body caused by a horn according to the present invention;

fig. 2 is a schematic rear side structural view of fig. 1 of a horn device for reducing box resonance caused by a horn according to the present invention;

fig. 3 is a schematic diagram of the internal structure of the horn box of the horn device provided by the present invention for reducing the resonance of the box caused by the horn.

In the figure: 1. a horn box body; 2. a horn; 3. mounting a plate; 4. a through groove; 5. a dust-proof frame; 6. a wire guide hole; 7. a through hole; 8. connecting a lug plate; 9. connecting blocks; 10. a connecting spring; 11. a connecting nut; 12. a dust collection channel; 13. a lead-out slot; 14. and a baffle plate.

Detailed Description

In order to further understand the contents, features and functions of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

Referring to fig. 1 to fig. 3, a horn device for reducing resonance of a horn caused by a box according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, this reduce loudspeaker and arouse resonant loudspeaker device of box includes loudspeaker 2 box 1, loudspeaker 2, mounting panel 3, loudspeaker 2 fix with screw on mounting panel 3 has seted up logical groove 4 on loudspeaker 2 box 1, mounting panel 3 is located logical inslot 4, elastic connection between mounting panel 3 and the loudspeaker 2 box 1, and loudspeaker 2 box 1 is inside still to be equipped with dustproof frame 5, and dustproof frame 5 covers whole loudspeaker 2, and dustproof frame 5 keeps away from loudspeaker 2 end and has seted up wire guide 6.

Through hole 7 has been seted up on mounting panel 3, and through hole 7 has connection auricle 8 towards 2 box 1 internal weld of loudspeaker, it is fixed with connecting block 9 on the logical groove 4, fixedly connected with coupling spring 10 between connection auricle 8 and the connecting block 9, and connection auricle 8 is equipped with a plurality ofly along leading to 4 circumferencial directions, and 3 end welded connections of mounting panel 11 are kept away from to connection auricle 8.

When loudspeaker installation, at first with the screw fixation between loudspeaker and the mounting panel, after fixed the completion, with the mounting panel screw fixation inside coupling nut 11, accomplish loudspeaker fixed, fixed connection coupling spring 10 between coupling nut 11 and connecting block 9, when loudspeaker sound production vibration, can carry out the damping through a plurality of coupling spring 10 that set up all around, reduce resonance.

The upper end and the lower end of the dustproof frame 5 are connected with a dust collecting channel 12, the dust collecting channel 12 is communicated with the dustproof frame 5, the dust collecting channel 12 is provided with a guide groove 13 arranged on the horn 2 box body 1 towards the outer side of the horn 2 box body 1, a baffle 14 is hinged in the guide groove 13, and the baffle 14 is magnetically attracted and connected with the horn 2 box body 1.

In loudspeaker installation, set up dustproof frame 5, carry out the dust through dustproof frame 5 and collect, collect the back dust and fall into inside dust collection passageway 12, simultaneously to certain time collecting, can open baffle 14, wherein can set up magnet between baffle 14 and the loudspeaker box 1, open baffle 14 after, take out the dust, wherein dust collection passageway 12 all sets up at dustproof frame 1 both ends, regardless of loudspeaker box 1 is put promptly, all can collect the dust.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Reduce loudspeaker and arouse loudspeaker device of box resonance, its characterized in that, this loudspeaker device that reduces loudspeaker and arouse box resonance include loudspeaker (2) box (1), loudspeaker (2), mounting panel (3), loudspeaker (2) screw fixation is on mounting panel (3), has seted up logical groove (4) on loudspeaker (2) box (1), mounting panel (3) are located logical groove (4), and elastic connection between mounting panel (3) and loudspeaker (2) box (1), loudspeaker (2) box (1) inside still is equipped with dustproof frame (5), and dustproof frame (5) cover whole loudspeaker (2), and dustproof frame (5) are kept away from loudspeaker (2) end and have been seted up wire guide (6).

2. The horn device for reducing the resonance of the horn-induced box body as claimed in claim 1, wherein a through hole (7) is formed in the mounting plate (3), the through hole (7) is welded with a connecting lug (8) towards the inside of the horn (2) box body (1), a connecting block (9) is fixed on the through groove (4), a connecting spring (10) is fixedly connected between the connecting lug (8) and the connecting block (9), and a plurality of connecting lugs (8) are arranged along the circumferential direction of the through groove (4).

3. A horn device for reducing the resonance of a box body caused by a horn according to claim 2, wherein the end of the connecting lug piece (8) far away from the mounting plate (3) is welded with a connecting nut (11).

4. The horn device for reducing the resonance of the horn-induced box according to claim 1, wherein the dust-collecting channel (12) is connected to the upper and lower ends of the dust-proof frame (5), the dust-collecting channel (12) is communicated with the dust-proof frame (5), and the dust-collecting channel (12) is provided with a leading-out groove (13) formed on the box (1) of the horn (2) towards the outer side of the box (1) of the horn (2).

5. The horn device for reducing the resonance of the horn-induced box body according to claim 4, wherein the guiding-out slot (13) is hinged with a baffle (14), and the baffle (14) is magnetically connected with the box body (1) of the horn (2).