CN211128094U

CN211128094U - Dot-array type sound box

Info

Publication number: CN211128094U
Application number: CN202020219891.0U
Authority: CN
Inventors: 孙志国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-07-28
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses a point array formula audio amplifier, the load simulator comprises a case, the machine case is the frustum of pyramid structure, machine case rear end face is provided with the standing groove, machine case front end is provided with the vocal chamber, vocal chamber side surface is provided with the sound amplification board that is the pyramid form, the sound amplification board with the standing groove is linked together, the inside antimagnetic cover that is provided with of standing groove, antimagnetic cover internally mounted has the sound production unit that is used for the sound production, the limiting plate is installed to antimagnetic cover outside symmetry, standing groove both sides face symmetry is provided with and is used for the cooperation the spacing groove of limiting plate, the sound production unit is located inside the standing groove. Has the advantages that: the device adopts the mode of point sound emission for diffusion, has large coverage angle, can uniformly cover the whole sound field, effectively solves the fatal problem of sound interference between sound boxes, and can be flexibly built according to the required coverage range; the device has simple structure and is convenient to disassemble and assemble, thereby being convenient to replace and maintain when the device is damaged.

Description

Dot-array type sound box

Technical Field

The utility model belongs to the technical field of the stereo set technique and specifically relates to a point array formula audio amplifier is related to.

Background

One important device of an audio system is a sound box, which generally consists of a speaker unit and a box body. The loudspeaker unit is used as a sounding component, and the box body is used as a supplement of the loudspeaker unit and plays a role in correcting sound. The sound production principle of loudspeaker unit is a conversion of electric energy conversion to sound, and when different electronic energy passed to the coil, the coil produced the magnetic field interaction of an energy and magnet, and this kind of interaction caused the paper dish to vibrate, because electronic energy changes at any time, the coil of loudspeaker can be forward or backward motion, therefore the paper dish of loudspeaker will follow the motion, and this action makes the density degree of air produce the change and produce sound.

In the prior art, the sound boxes usually adopt linear array type sound boxes, and because the coverage angle is small, when the whole sound field needs to be uniformly covered, a plurality of sound boxes can meet the requirement by being hoisted side by side or vertically, the number of the sound boxes needs to be increased by multiple times, the corresponding power amplifiers are also increased, and meanwhile, the manufacturing cost is also increased by multiple times; the sound interference among the sound boxes is serious due to the increase of the number of the single sound boxes; meanwhile, the sound pressure attenuation is fast, the transmission distance is short, the common distance is doubled, the sound pressure level is reduced by 10dB, the obvious difference between the far-field sound pressure level and the near-field sound pressure level is achieved, the sound amplification requirement can be met only by adding a plurality of full-frequency auxiliary sound boxes, the cost is obviously increased, the sound interference is serious (the phenomenon is ubiquitous), and meanwhile, the decoration cost of acoustic environment construction can also be increased.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a spot array type speaker system for solving the above problems.

The technical scheme of the utility model is realized like this:

the utility model provides a point array formula audio amplifier, includes quick-witted case, quick-witted case is the frustum of pyramid structure, machine case rear end face is provided with the standing groove, machine case front end is provided with the vocal chamber, vocal chamber side surface is provided with the sound amplification board that is the pyramid form, the sound amplification board with the standing groove is linked together, the inside antimagnetic cover that is provided with of standing groove, antimagnetic cover internally mounted has the sound production unit that is used for the sound production, the limiting plate is installed to antimagnetic cover outside symmetry, standing groove both sides symmetry is provided with and is used for the cooperation the spacing groove of limiting plate, the sound production unit is located inside the standing groove, just it is right to install on the wall behind the machine case limiting plate with the machine case carries out the set screw that fixes.

Further, the sound production unit includes the magnetic conduction utmost point, the magnetic conduction utmost point fixed mounting is in antimagnetic cover top position, antimagnetic cover top face is provided with a plurality of support frames that evenly encircle the setting, install the vibrating diaphragm through rolling over the ring between the support frame, the magnetic conduction utmost point lower extreme is provided with the magnet, the magnet below is provided with the magnetic conduction lower extreme, the terminal surface is provided with and inserts in the magnetic conduction lower extreme the inside magnetic conduction post of vibrating diaphragm, the vibrating diaphragm outer wall is located magnetic conduction post top position department encircles and is provided with a plurality of voice coils, the magnetic conduction lower extreme terminal surface is provided with the back shroud body, back shroud body bottom surface with the antimagnetic cover inner bottom surface contacts, the inside inner chamber that is provided with of back shroud body, the inner chamber with vibrating diaphragm inner.

Further, the inner cavity is filled with a sound attenuation material.

Furthermore, the support frame is provided with 6, and encircles the setting and is in magnetic conduction top surface.

Furthermore, fixed mounting has between the support frame right the safety cover that sound generating unit inside spare part protected.

Furthermore, the surface of the limiting plate is provided with a threaded hole, and the threaded hole corresponds to the fixing screw installed on the rear end face of the case.

Furthermore, a resonance groove is arranged on the surface of the sound reinforcement plate.

By adopting the technical scheme, the beneficial effects of the utility model are that: the device adopts the mode of point sound emission for diffusion, has large coverage angle, can uniformly cover the whole sound field, effectively solves the fatal problem of sound interference between sound boxes, and can be flexibly built according to the required coverage range; the device has simple structure and is convenient to disassemble and assemble, thereby being convenient to replace and maintain when the device is damaged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a spatial perspective view of the present invention;

fig. 2 is a schematic structural diagram of the sound generating unit of the present invention;

fig. 3 is a rear partial cross-sectional view of the present invention;

fig. 4 is a schematic view of the installation structure of the present invention.

The reference numerals are explained below:

1. a chassis; 101. a placement groove; 102. a limiting groove; 2. a sound emitting unit; 201. a magnetic lower pole; 202. a voice coil; 203. folding the ring; 204. a protective cover; 205. vibrating diaphragm; 206. a support frame; 207. a magnetic conductive upper pole; 208. a magnet; 209. a magnetically conductive post; 210. a rear cover body; 211. an inner cavity; 3. a sound amplification plate; 301. a resonance tank; 4. a sound-emitting cavity; 5. a magnetic shield; 6. a limiting plate; 601. a threaded hole; 7. and fixing the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-4, a point array type sound box includes a cabinet 1, the cabinet 1 is of a pyramid structure, a placement groove 101 is provided on a rear end face of the cabinet 1, a sounding cavity 4 is provided on a front end of the cabinet 1, a sound amplification plate 3 in a pyramid shape is provided on a side surface of the sounding cavity 4, the sound amplification plate 3 is communicated with the placement groove 101, a antimagnetic cover 5 is provided inside the placement groove 101, a sounding unit 2 for sounding is mounted inside the antimagnetic cover 5, limiting plates 6 are symmetrically mounted on outer sides of the antimagnetic cover 5, limiting grooves 102 for matching the limiting plates 6 are symmetrically provided on two side faces of the placement groove 101, the sounding unit 2 is located inside the placement groove 101, and a fixing screw 7 for fixing the limiting plates 6 and the cabinet 1 is mounted on a rear wall of the cabinet 1.

In this embodiment, the sound generating unit 2 includes a magnetic conduction upper pole 207, the magnetic conduction upper pole 207 is fixedly installed at the top end position of the antimagnetic housing 5, the top end surface of the antimagnetic housing 5 is provided with a plurality of support frames 206 which are uniformly arranged around, a vibrating diaphragm 205 is installed between the support frames 206 through a folding ring 203, the lower end of the magnetic conduction upper pole 207 is provided with a magnet 208, a magnetic conduction lower pole 201 is arranged below the magnet 208, the inner end surface of the magnetic conduction lower pole 201 is provided with a magnetic conduction column 209 which is inserted into the vibrating diaphragm 205, the outer wall of the vibrating diaphragm 205 is located at the top position of the magnetic conduction column 209 and is provided with a plurality of voice coils 202 around, the lower end surface of the magnetic conduction lower pole 201 is provided with a rear housing body 210, the bottom surface of.

In this embodiment, the inner cavity 211 is filled with a sound-deadening material, so that sound can be reduced from propagating to the rear end surface of the housing 1 by the sound-deadening material.

In this embodiment, the number of the support frames 206 is 6, and the support frames are disposed on the surface of the magnetic conductive upper pole 207 in a surrounding manner, so that the installation stability of the folded ring 203 can be ensured, and the installation stability of the folded ring 203 on the diaphragm 205 can be ensured.

In this embodiment, a protection cover 204 for protecting the internal components of the sound generating unit 2 is fixedly installed between the support frames 206, so that the components in the sound generating unit 2 can be protected by the protection cover 204.

In this embodiment, the surface of the limiting plate 6 is provided with a threaded hole 601, and the threaded hole 601 corresponds to the fixing screw 7 installed on the rear end face of the case 1, so that the installation stability of the limiting plate 6 and the case 1 can be ensured through the fixing screw 7.

In this embodiment, the surface of the acoustic panel 3 is provided with the resonance groove 301, so that resonance can be formed between the resonance groove 301 and the acoustic panel 3, and acoustic amplification and sound conduction can be facilitated.

The utility model discloses a theory of operation does: when the device is used, the device is annularly installed according to a sound amplification range, a signal connecting line and a power line are installed on the device, a power supply is switched on, the signal connecting line transmits an electric signal to the sound production unit 2, the antimagnetic cover 5 produces sound, and resonance and sound amplification are carried out through the sound production cavity 4 formed by the conical sound amplification plate 3, so that a point-array sound source is formed, the sound transmission range is gradually expanded to the outside, and the sound production cavity 4 is conical, so that sound amplification is facilitated; when the device needs to be maintained, the fixing of the limiting plate 6 and the case 1 by the fixing screw 7 is released, the antimagnetic cover 5 is rotated, the antimagnetic cover 5 drives the limiting plate 6 to rotate in the limiting groove 102 until the limiting plate 6 rotates into the placing groove 101, the sounding unit 2 can be taken out of the placing groove 101 at the moment, the sounding unit 2 is convenient to maintain, and after the maintenance is finished, the sounding unit 2 is reinstalled to the original position, the device adopts the mode of point sounding diffusion, has large covering angle, can uniformly cover the whole sound field, has the advantages of sound pressure attenuation and long transmission distance, usually doubles the distance, reduces the sound pressure level by only 1dB, and achieves the effect that the far field and the near field can hardly feel the sound pressure difference; flexible building and combining; the characteristics of sound: clean, sweet and big sound pressure without dryness.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A point array type sound box is characterized in that: comprises a case (1), the case (1) is of a pyramid structure, a placing groove (101) is arranged on the rear end face of the case (1), a sounding cavity (4) is arranged at the front end of the case (1), a pyramid-shaped sound expansion plate (3) is arranged on the side surface of the sounding cavity (4), the sound amplification plate (3) is communicated with the placing groove (101), the interior of the placing groove (101) is provided with a antimagnetic cover (5), a sound production unit (2) for producing sound is arranged in the antimagnetic cover (5), limiting plates (6) are symmetrically arranged on the outer side of the antimagnetic cover (5), limiting grooves (102) used for being matched with the limiting plates (6) are symmetrically arranged on two side surfaces of the placing groove (101), the sound generating unit (2) is positioned in the placing groove (101), and a fixing screw (7) for fixing the limiting plate (6) and the case (1) is installed on the rear wall of the case (1).

2. The loudspeaker of claim 1, wherein: the sound production unit (2) comprises a magnetic conduction upper pole (207), the magnetic conduction upper pole (207) is fixedly installed at the top end position of the magnetic shield (5), a plurality of support frames (206) which are uniformly arranged in a surrounding mode are arranged on the top end surface of the magnetic shield (5), a vibrating diaphragm (205) is installed between the support frames (206) through a folding ring (203), a magnet (208) is arranged at the lower end of the magnetic conduction upper pole (207), a magnetic conduction lower pole (201) is arranged below the magnet (208), a magnetic conduction column (209) inserted into the vibrating diaphragm (205) is arranged on the inner end surface of the magnetic conduction lower pole (201), a plurality of voice coils (202) are arranged at the top position of the magnetic conduction column (209) in a surrounding mode on the outer wall of the vibrating diaphragm (205), a rear cover body (210) is arranged on the lower end surface of the magnetic conduction lower pole (201), and the bottom surface of the rear cover, an inner cavity (211) is formed in the rear cover body (210), and the inner cavity (211) is communicated with the inner space of the vibrating diaphragm (205).

3. The loudspeaker of claim 2, wherein: the inner cavity (211) is filled with sound attenuation materials.

4. The loudspeaker of claim 2, wherein: the number of the support frames (206) is 6, and the support frames are arranged on the surface of the magnetic conduction upper pole (207) in a surrounding mode.

5. The loudspeaker of claim 2, wherein: fixed mounting has between support frame (206) right sound generating unit (2) inside spare part carries out the safety cover (204) of protection.

6. The loudspeaker of claim 1, wherein: the surface of the limiting plate (6) is provided with a threaded hole (601), and the threaded hole (601) corresponds to the fixing screw (7) arranged on the rear end face of the case (1).

7. The loudspeaker of claim 1, wherein: and a resonance groove (301) is formed in the surface of the sound expansion plate (3).