CN221900982U

CN221900982U - Active monitor speaker

Info

Publication number: CN221900982U
Application number: CN202323456425.7U
Authority: CN
Inventors: 郑建国; 张康禹
Original assignee: Soundking Electronics&sound Co ltd
Current assignee: Soundking Electronics&sound Co ltd
Priority date: 2023-12-19
Filing date: 2023-12-19
Publication date: 2024-10-25
Anticipated expiration: 2033-12-19

Abstract

The utility model provides an active monitoring sound box, which comprises a box body, wherein a loudspeaker and two phase inversion tubes are fixedly arranged in the box body, and the two phase inversion tubes are symmetrically arranged below the loudspeaker respectively; the two phase inversion pipes comprise bent pipes, straight pipes and installation parts which are communicated in sequence, the outlets of the installation parts are fixedly connected with a box body, the inlets of the bent pipes are opposite and are arranged at intervals, the inlet end faces of the bent pipes are arranged at a first preset angle alpha with the vertical surfaces, the inlets of the bent pipes are both provided with a vertical tangential plane, and the vertical tangential plane is arranged at a second preset angle beta with the vertical surfaces. According to the utility model, the two phase inversion pipes are symmetrically arranged, the inlets of the bent pipes of the two phase inversion pipes are opposite, so that the double-pipe coupling of the two phase inversion pipes is realized, and meanwhile, the vertical section on the bent pipe is combined, so that the wind noise entering the bent pipe in the box body can be reduced, and the excellent low-frequency characteristic of the sound box is ensured.

Description

Active monitoring sound box

Technical Field

The utility model relates to the technical field of active sound boxes, in particular to an active monitoring sound box.

Background

Along with the flourishing of music markets and the field of audio equipment, more and more music lovers are devoted to related works such as creation, recording, composing, manufacturing and the like, which means that a pair of good monitoring sound boxes are owned, and the method becomes a link of 'heavy'.

The main function of the monitoring sound box is to faithfully and accurately restore the real situation of sound content without adding, missing or modifying any component, and meanwhile, the harmful influence brought by the monitoring environment should be reduced to the minimum, so that a music producer, a singer and a sound engineer can be used as the basis of judgment and reference of tuning. Only such listening systems are possible to assist the sound worker in making the correct judgment. Besides sounding through the front of the loudspeaker, the sound box also introduces the radiation sound energy on the back of the loudspeaker to the front through the phase inversion tube, so that the low-frequency playback effect of the sound box is enhanced.

The traditional phase inversion tube is generally composed of a section of collecting tube and a section of mounting tube, the mounting tube is connected with the box body, and the collecting tube and the mounting tube are communicated at a certain angle in order to avoid the limitation of the internal structural space of the sound box. Some of the collecting pipes are arranged into straight pipes, some of the collecting pipes are arranged into serpentine bent pipes, but the sectional areas of the inner parts of the collecting pipes are all equal in size, so that wind noise can be mixed when the radiant sound energy in the box body is transmitted outwards, the low-frequency sound quality of the sound box is enhanced limitedly, and the sound box cannot be guaranteed to have excellent low-frequency characteristics.

Disclosure of utility model

The technical problems to be solved by the utility model are as follows: the active monitoring sound box solves the problem that wind noise is mixed when the phase inversion tube transmits the radiation sound energy in the box body outwards in the prior art.

The utility model solves the problems by adopting the following technical scheme: an active monitoring sound box comprises a box body, wherein a loudspeaker and two phase inversion tubes are fixedly arranged in the box body, and the two phase inversion tubes are symmetrically arranged below the loudspeaker respectively; the two phase inversion pipes comprise bent pipes, straight pipes and installation parts which are communicated in sequence, the outlets of the installation parts are fixedly connected with a box body, the inlets of the bent pipes are opposite and are arranged at intervals, the inlet end faces of the bent pipes are arranged at a first preset angle alpha with the vertical surfaces, the inlets of the bent pipes are both provided with a vertical tangential plane, and the vertical tangential plane is arranged at a second preset angle beta with the vertical surfaces.

Compared with the prior art, the utility model has the advantages that: through setting up two phase inversion pipes symmetrically, and the return bend import of two phase inversion pipes is relative, realizes two phase inversion pipe double-barrelled couplings, combines the vertical tangent plane on the return bend again simultaneously, can reduce the wind noise that gets into the return bend in the box, guarantees that the audio amplifier has outstanding low frequency characteristic.

Preferably, the inner cross section area of the bent pipe gradually decreases from the inlet to the outlet, the inner cross section area of the outlet of the bent pipe is equal to the inner cross section area of the straight pipe, and the inner cross section areas of all the straight pipe are equal.

The technical scheme has the technical effects that: the phase inversion tube realizes long stroke through the combination of the bent tube and the straight tube, and meanwhile, wind noise can be further reduced through the gradual change structure of the bent tube, so that low-frequency tone quality is clearer.

Preferably, the first preset angle α is 40 ° to 45 °.

Preferably, the first preset angle α is 40 °.

Preferably, the second preset angle β is less than or equal to 5 °.

Preferably, the second preset angle β is 5 °, and the vertical tangential plane faces the inner bottom of the middle frame.

Preferably, the inlet end face and the outlet end face of the bent pipe are perpendicular.

The technical scheme has the technical effects that: through smooth transition of the bent pipe structure, airflow sound in the phase inversion pipe can be reduced; the bent pipe and the straight pipe are vertically arranged, so that the transverse length of the phase inversion pipe in the loudspeaker box can be reduced, and the space is fully utilized.

Preferably, the box comprises a front shell and a middle frame, the front shell forms a horn mouth towards the middle frame in a concave manner, the mounting part is sleeved at the inlet of the horn mouth and is fixedly connected with the inner side surface of the front shell, the inlet end of the horn mouth is abutted with the outlet end of the straight pipe, and the inner sectional area of the inlet of the horn mouth is equal to the inner sectional area of the straight pipe.

The technical scheme has the technical effects that: the horn mouth that the indent formed of preceding shell, and the interior cross-section of horn mouth and the interior cross-section of straight tube are equal, guarantee through the audio frequency of straight tube flow direction horn mouth can smooth transition, prevent the noise from appearing.

Preferably, a phase inversion pipe gasket for sealing is arranged between the outlet end of the straight pipe and the inlet end of the bell mouth.

The technical scheme has the technical effects that: through the phase inversion pipe gasket, a sealing structure is ensured, and noise is prevented from occurring when the audio flows out from the interface.

Preferably, the installation department passes through the screw fixation in preceding shell medial surface, the opening terminal surface of installation department is equipped with a plurality of erection column along radial outside extension, every all be equipped with first mounting hole on the erection column, be equipped with on the preceding shell with first mounting hole assorted second mounting hole, the screw runs through first mounting hole and second mounting hole fixed connection.

The technical scheme has the technical effects that: through setting up the erection column, make things convenient for inverter tube and audio amplifier to be connected fixedly.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an active listening speaker of the present utility model;

FIG. 2 is a cross-sectional view of an active listening speaker of the present utility model;

FIG. 3 is an enlarged schematic view of the utility model at A in FIG. 2;

Fig. 4 is a schematic diagram of an internal structure of an active listening speaker according to the present utility model;

FIG. 5 is a schematic diagram of the installation of two inverter tubes of an active monitor speaker of the present utility model;

fig. 6 is a schematic diagram of a phase inverter tube structure of an active listening speaker of the present utility model.

Reference numerals illustrate:

1-a box body; 11-a front shell; 111-flare; 12-middle frame;

2-speakers;

3-inverter tube; 31-bending the pipe; 311-vertical tangential plane; 32-straight pipes; 33-an installation part; 331-mounting posts; 332-a first mounting hole;

4-inverter tube gasket.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

As shown in fig. 1 to 6, the present embodiment relates to an active listening speaker, which includes a case 1, and a speaker 2 and two inverter tubes 3 are fixedly disposed in the case 1.

Wherein, speaker 2 includes tweeter and woofer, and tweeter sets up in the top in box 1, and woofer sets up in the below in box 1, and two inverter tubes 3 symmetry set up respectively in the woofer below.

In the present embodiment, both inverter tubes 3 include a bent tube 31, a straight tube 32, and a mounting portion 33 that are sequentially communicated. The inlet of the bent pipe 31 is communicated with the air inside the box body 1, the outlet of the bent pipe 31 is communicated with the inlet of the straight pipe 32, the outlet of the straight pipe 32 is communicated with the inlet of the mounting part 33, the outlets of the mounting part 33 are fixedly connected with the inner side surface of the box body 1, and the outlet of the mounting part 33 is communicated with the air outside the box body 1.

In the actual use process, the bent pipe 31, the straight pipe 32 and the mounting part 33 are hollow structures, so that low-frequency sound inside the box body 1 is conveniently led out of the front surface of the box body 1, and the low-frequency sound effect is improved.

Referring to fig. 5, inlets of the two elbows 31 are opposite and are arranged at intervals, inlet end faces of the two elbows 31 are arranged at a first preset angle alpha with the vertical plane, a vertical tangential plane 311 is arranged on inlets of the two elbows 31, and the vertical tangential plane 311 is arranged at a second preset angle beta with the vertical plane.

Wherein the first preset angle alpha is 40-45 degrees. In this embodiment, the first preset angle α is 40 °.

Wherein the second preset angle beta is less than or equal to 5 degrees. In this embodiment, the second preset angle β is 5 °, and the vertical tangential plane 311 faces the inner bottom of the middle frame 12.

Through setting up two phase inversion pipes 3 symmetrically, and the return bend 31 import of two phase inversion pipes 3 is relative, realizes two phase inversion pipe 3 double-barrelled couplings, combines the vertical tangent plane 311 on the return bend 31 again simultaneously, can reduce the wind noise that gets into return bend 31 in the box 1, guarantees that the audio amplifier has outstanding low frequency characteristic.

The two phase inversion tubes 3 are oppositely arranged, so that the vertical tangential surface 311 is designed to face the inner bottom of the middle frame 12, and thus, the upper part and the lower part of the phase inversion tubes 3 are respectively provided with a relatively large space, and low-frequency sound inside the box body 1 is conveniently led out of the front surface of the box body 1.

In actual use, the vertical tangential plane 311 may be designed to face the inner top of the center frame 12.

Referring to fig. 2, in the present embodiment, the inner cross-sectional area of the bent pipe 31 gradually decreases from the inlet to the outlet, and the inner cross-sectional area of the outlet of the bent pipe 31 is equal to the inner cross-sectional area of the straight pipe 32, and the inner cross-sectional areas of the straight pipe 32 are equal.

The phase inversion tube 3 realizes long stroke through the combination of the bent tube 31 and the straight tube 32, and meanwhile, wind noise can be further reduced through the gradual change structure of the bent tube 31, so that low-frequency sound quality is clearer.

In this embodiment, the inlet end face and the outlet end face of the elbow 31 are perpendicular. Through smooth transition of the bent pipe structure, airflow sound in the phase inversion pipe 3 can be reduced; the bent pipe 31 and the straight pipe 32 are arranged vertically, so that the transverse length of the phase inversion pipe 1 in the loudspeaker box can be reduced, and the space can be fully utilized.

The cross sections of the straight pipe 32 and the bent pipe 31 are circular rings or elliptical rings, and the inner diameters of the straight pipe 32 are equal everywhere.

Referring to fig. 1 to 3, the case 1 includes a front shell 11 and a middle frame 12, the front shell 11 is concaved inward toward the middle frame 12 to form a bell mouth 111, a mounting portion 33 is sleeved at an inlet of the bell mouth 111 and fixedly connected with an inner side surface of the front shell 11, an inlet end of the bell mouth 111 is abutted with an outlet end of the straight tube 32, and an inner cross-sectional area of an inlet of the bell mouth 111 is equal to an inner cross-sectional area of the straight tube 32.

The horn mouth 111 that the front shell 11 indent formed, and the interior cross-section of horn mouth 111 and the interior cross-section of straight tube 31 are equal, guarantee that the audio through straight tube 32 flow to horn mouth 111 can smooth transition, prevent the noise from appearing.

In this embodiment, a phase inversion pipe gasket 4 for sealing is provided between the outlet end of the straight pipe 32 and the inlet end of the bell mouth 111. By means of the inverter tube gasket 4, a sealing structure is ensured, and noise is prevented from occurring when audio flows out of the interface.

The front shell 11 is of an integrally formed plastic structure, and the middle frame 12 is of a wooden structure, so that a good sound conduction effect can be ensured. The middle frame 12 is connected with a rear shell on one side far away from the front shell 11, and the rear shell is of an iron structure, so that the power amplifier, the interface and other components can be conveniently fixed.

Referring to fig. 6, the mounting portion 33 is fixed on the inner side surface of the front shell 11 by a screw, a plurality of mounting posts 331 are radially and outwardly extended from the opening end surface of the mounting portion 33, each mounting post 331 is provided with a first mounting hole 332, the front shell 11 is provided with a second mounting hole matched with the first mounting hole 332, and the screw penetrates through the first mounting hole 332 and is fixedly connected with the second mounting hole.

By arranging the mounting column 331, the inverter tube 3 is conveniently connected and fixed with the box body 1.

The beneficial effects of the utility model are as follows: through setting up two phase inversion pipes 3 symmetrically, and the return bend 31 import of two phase inversion pipes 3 is relative, realizes two phase inversion pipe 3 double-barrelled couplings, combines the vertical tangent plane 311 on the return bend 31 again simultaneously, can reduce the wind noise that gets into return bend 31 in the box 1, guarantees that the audio amplifier has outstanding low frequency characteristic.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims

1. An active monitoring speaker, comprising a box (1), characterized in that: a speaker (2) and two inverted tubes (3) are fixedly arranged in the box (1), and the two inverted tubes (3) are symmetrically arranged below the speaker (2);

The two inverter tubes (3) each comprise a bent tube (31), a straight tube (32) and a mounting portion (33) which are connected in sequence; the outlets of the two mounting portions (33) are fixedly connected to the box body (1); the inlets of the two bent tubes (31) are opposite to each other and arranged at intervals; the inlet end faces of the two bent tubes (31) are arranged at a first preset angle α with a vertical plane; the inlets of the two bent tubes (31) are each provided with a vertical section (311); the vertical section (311) is arranged at a second preset angle β with the vertical plane.

2. An active monitoring speaker according to claim 1, characterized in that: the inner cross-sectional area of the curved pipe (31) decreases gradually from the inlet to the outlet, the inner cross-sectional area of the outlet of the curved pipe (31) is equal to the inner cross-sectional area of the straight pipe (32), and the inner cross-sectional areas of the straight pipe (32) are equal at all locations.

3. The active monitoring speaker according to claim 2, wherein the first preset angle α is 40° to 45°.

4 . The active monitoring speaker according to claim 3 , wherein the first preset angle α is 40°.

5 . The active monitoring speaker according to claim 2 , wherein the second preset angle β is less than or equal to 5°.

6. An active monitoring speaker according to claim 5, characterized in that: the second preset angle β is 5°, and the vertical section (311) faces the inner bottom of the middle frame (12).

7. An active monitoring speaker according to claim 2, characterized in that the inlet end face and the outlet end face of the curved pipe (31) are perpendicular.

8. An active monitoring speaker according to claim 2, characterized in that: the box body (1) comprises a front shell (11) and a middle frame (12), the front shell (11) is concave toward the middle frame (12) to form a bell mouth (111), the mounting portion (33) is sleeved on the inlet of the bell mouth (111) and is fixedly connected to the inner side surface of the front shell (11), the inlet end of the bell mouth (111) is abutted against the outlet end of the straight tube (32), and the inner cross-sectional area of the inlet of the bell mouth (111) is equal to the inner cross-sectional area of the straight tube (32).

9. An active monitoring speaker according to claim 8, characterized in that a bass reflex tube gasket (4) for sealing is provided between the outlet end of the straight tube (32) and the inlet end of the bell mouth (111).

10. An active monitoring speaker according to claim 8, characterized in that: the mounting portion (33) is fixed to the inner side of the front shell (11) by screws, the open end surface of the mounting portion (33) is provided with a plurality of mounting posts (331) extending radially outward, each of the mounting posts (331) is provided with a first mounting hole (332), the front shell (11) is provided with a second mounting hole matching the first mounting hole (332), and the screw passes through the first mounting hole (332) and is fixedly connected to the second mounting hole.