CN219999522U - Loudspeaker box capable of filtering frequency bands - Google Patents

Abstract

The utility model relates to the technical field of sound boxes, in particular to a sound box capable of filtering frequency bands, which comprises a sound box main body, wherein the upper end of the sound box main body is provided with a mounting opening, a loudspeaker is mounted in the mounting opening, the upper end of the sound box main body is provided with an upper cover, the inner side of the upper cover is provided with a filter screen for filtering sound of the loudspeaker, the filter screen is connected with the upper cover through screws, and the filter screen is provided with filter holes.

Description

Loudspeaker box capable of filtering frequency bands

Technical Field

The utility model relates to the technical field of sound boxes, in particular to a sound box capable of filtering frequency bands.

Background

A sound box refers to a device that converts an audio signal into sound. In popular terms, the power amplifier is arranged in the main box body of the sound box or the bass box body, the sound is played back by the sound box after the audio signal is amplified, so that the sound is amplified, and the sound box is a terminal of the whole sound system and is used for converting audio electric energy into corresponding sound energy and radiating the sound energy to the space. The sound box is an extremely important component part of a sound system and is responsible for converting an electric signal into an acoustic signal for direct listening of ears of a person, and when the sound box works, the emitted sound can carry high-frequency sword front sounds which can influence the use experience of the sound box.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a sound box capable of filtering frequency bands.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a can filter audio amplifier of frequency channel, includes the audio amplifier main part, the installing port has been seted up to the upper end of audio amplifier main part, install the speaker in the installing port, the upper end of audio amplifier main part is provided with the upper cover, the inboard of upper cover is provided with the filter screen that is used for filtering speaker sound, the filter screen passes through screwed connection with the upper cover, the filtration pore has been seted up on the filter screen.

Preferably, the filter holes are round holes, and the diameter of the filter holes is 1.5mm.

Preferably, the filter holes are arranged in a straight line in the longitudinal direction and the transverse direction, the transverse filter holes and the adjacent longitudinal filter holes are staggered, the distance between the circle centers of the two groups of the filter holes which are adjacent in the transverse direction is 2.1mm, and the distance between the circle centers of the two groups of the filter holes which are adjacent in the longitudinal direction and are in the same straight line is 3.64mm.

Preferably, the upper end of the filter screen is provided with a lug, the upper end of the upper cover is provided with a clamping groove, and the lug is matched with the clamping groove.

Preferably, the position that is close to the four corners of upper end of upper cover is provided with the second through-hole, first through-hole has been seted up to the upper end of filter screen, first through-hole aligns with the second through-hole, the diameter of second through-hole is 9.5mm.

Preferably, the lower extreme fixedly connected with cardboard of upper cover, the cardboard pastes in the outside of audio amplifier main part when the upper cover is installed on the audio amplifier main part.

Preferably, the filter screen is made of iron.

Compared with the prior art, the utility model has the beneficial effects that:

1. this kind of can filter audio amplifier of frequency channel, the inboard of upper cover is fixed to the speaker through the screw, can make things convenient for the installation of lug through the draw-in groove, make filter screen and upper cover laminate more, then cover the upper end of audio amplifier main part with the upper cover, make the speaker install the top of the inboard filter screen of audio amplifier main part, make things convenient for the filter screen to filter the sound that the speaker sent, can filter the high frequency spike of 5Khz through the filtration pore on the filter screen, make the sound more clear, the utility model, can filter some unnecessary frequency wave bands that the speaker sent, guarantee tone quality.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

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

FIG. 3 is a schematic view of a portion of the structure of the present utility model;

FIG. 4 is a schematic diagram of a portion of a second embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of the portion A of the present utility model;

fig. 6 is a test chart of the present utility model.

In the figure: 1. a sound box main body; 2. an upper cover; 3. a speaker; 4. a filter screen; 41. a bump; 42. filtering holes; 43. a first through hole; 5. a second through hole; 6. a clamping groove; 7. and (5) clamping plates.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a can filter audio amplifier of frequency channel, includes audio amplifier main part 1, and the installing port has been seted up to audio amplifier main part 1's upper end, installs speaker 3 in the installing port, and audio amplifier main part 1's upper end is provided with upper cover 2, and upper cover 2's inboard is provided with the filter screen 4 that is used for filtering speaker 3 sound, and filter screen 4 passes through screwed connection with upper cover 2, has seted up filtration pore 42 on the filter screen 4.

In this embodiment, the filter holes 42 are circular holes, and the diameter of the filter holes 42 is 1.5mm.

The filter holes 42 are arranged in a straight line in the longitudinal direction and the transverse direction, the transverse filter holes 42 are staggered with the adjacent longitudinal filter holes 42, the center distance between the two groups of filter holes 42 which are adjacent in the transverse direction is 2.1mm, and the center distance between the two groups of filter holes 42 which are adjacent in the longitudinal direction and are in the same straight line is 3.64mm.

Specifically, the high-frequency peak of 5Khz can be filtered through the filter holes 42 on the filter screen 4, so that the sound is clearer.

In this embodiment, the upper end of the filter screen 4 is provided with a bump 41, the upper end of the upper cover 2 is provided with a clamping groove 6, and the bump 41 is engaged with the clamping groove 6.

Specifically, the mounting of the protruding block 41 can be facilitated through the clamping groove 6, so that the filter screen 4 is more attached to the upper cover 2.

In this embodiment, the upper end of the upper cover 2 is provided with second through holes 5 near the four corners, the upper end of the filter screen 4 is provided with first through holes 43, the first through holes 43 are aligned with the second through holes 5, and the diameter of the second through holes 5 is 9.5mm.

Specifically, the first through hole 43 and the second through hole 5 can facilitate the installation of screws, and the screws are convenient to fix the upper cover 2 and the filter screen 4 on the sound box main body 1.

In this embodiment, the lower end of the upper cover 2 is fixedly connected with a clamping plate 7, and the clamping plate 7 is tightly attached to the outer side of the sound box main body 1 when the upper cover 2 is mounted on the sound box main body 1.

Specifically, can block audio amplifier main part 1 through cardboard 7, make the installation of upper cover 2 more firm.

In this embodiment, the filter screen 4 is made of iron.

Specifically, the high-frequency peak of 5Khz can be filtered through the filter screen 4, so that the sound is clearer.

Working principle: the loudspeaker 3 is arranged on the inner side of the upper cover 2 by using the screw, the lug 41 is clamped into the inner side of the clamping groove 6, then the upper cover 2 is covered on the upper end of the loudspeaker box main body 1, the loudspeaker 3 is arranged above the inner side filter screen 4 of the loudspeaker box main body 1, then the upper cover 2 and the loudspeaker 3 are fixed by using the screw, the loudspeaker box main body 1 is started to emit sound by using the filter screen 4, the curve of the filter screen 4 is orange, the curve is not green, and the high-frequency peak of 5Khz can be filtered by the filter holes 42 on the filter screen 4, so that the sound is clearer.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims (7)

1. The utility model provides a can filter audio amplifier of frequency channel, includes audio amplifier main part (1), its characterized in that, the installing port has been seted up to the upper end of audio amplifier main part (1), install speaker (3) in the installing port, the upper end of audio amplifier main part (1) is provided with upper cover (2), the inboard of upper cover (2) is provided with filter screen (4) that are used for filtering speaker (3) sound, filter screen (4) pass through screwed connection with upper cover (2), filtration pore (42) have been seted up on filter screen (4).

2. A loudspeaker according to claim 1, wherein the filter holes (42) are circular holes, and the diameter of the filter holes (42) is 1.5mm.

3. The sound box with the filterable frequency band according to claim 2, wherein the filter holes (42) are arranged in a straight line in two directions of longitudinal direction and transverse direction, the transverse filter holes (42) are staggered with the adjacent longitudinal filter holes (42), the center distance between the two groups of filter holes (42) adjacent in the transverse direction is 2.1mm, and the center distance between the two groups of filter holes (42) adjacent in the longitudinal direction in the same straight line is 3.64mm.

4. A loudspeaker box with a filterable frequency band according to claim 3, characterized in that the upper end of the filter screen (4) is provided with a protruding block (41), the upper end of the upper cover (2) is provided with a clamping groove (6), and the protruding block (41) is matched with the clamping groove (6).

5. The sound box with the filterable frequency band according to claim 4, wherein the upper end of the upper cover (2) is provided with second through holes (5) near the four corners, the upper end of the filter screen (4) is provided with first through holes (43), the first through holes (43) are aligned with the second through holes (5), and the diameter of the second through holes (5) is 9.5mm.

6. The sound box with the filterable frequency band according to claim 5, wherein the lower end of the upper cover (2) is fixedly connected with a clamping plate (7), and the clamping plate (7) is tightly attached to the outer side of the sound box main body (1) when the upper cover (2) is installed on the sound box main body (1).

7. A loudspeaker box with a filterable frequency band according to claim 1, wherein the filter screen (4) is made of iron.