CN212649691U

CN212649691U - Multi-passive radiator sound box

Info

Publication number: CN212649691U
Application number: CN202021680932.2U
Authority: CN
Inventors: 蒋加星; 蔡禄军; 吴晓军
Original assignee: Wuxi Jiefu Electroacoustic Co Ltd
Current assignee: Wuxi Jiefu Electroacoustic Co Ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-03-02
Anticipated expiration: 2030-08-13

Abstract

The utility model relates to a many passive radiators audio amplifier, including the box, the box is prolate form, and box epitheca, inferior valve are along major axis direction to piecing together a plurality of speaker mounting holes that form, install a plurality of speaker units in a plurality of speaker mounting holes respectively, are close to the position of box minor face in the side of a plurality of speaker units, and the epitheca is provided with a plurality of radiator mounting holes, and the inferior valve also is provided with a plurality of radiator mounting holes. The upper casing and the lower casing radiator mounting holes are arranged along the mirror symmetry of the long axis direction of the box body, and a passive radiator is arranged in each radiator mounting hole. The sound radiation directions of the plurality of loudspeaker units face the right front of the box body; the sound radiation direction of the passive radiator is toward both sides of the cabinet. The utility model discloses the structure is ingenious, compact reasonable, and in small, three faces of box can both synchrotron radiation sound under the thin structure of thickness, can realize that the audio amplifier distortion is little, can bear the big acoustic characteristic of power.

Description

Multi-passive radiator sound box

Technical Field

The utility model belongs to the technical field of the speaker audio amplifier technique and specifically relates to a many passive radiator audio amplifiers.

Background

In the prior art, the sound box applied to the OLED television and the ultrathin notebook computer can only adopt a small-caliber short-stroke loudspeaker unit to radiate sound due to the thinning and miniaturization of the structure, so that the low frequency difference and the low sound pressure of the whole sound system are caused; as an improvement, a structure of an open-mouth sound box is generally adopted, and a phase inversion tube is provided to improve low-frequency response characteristics, but various sound defects such as sound coloration in a phase inversion tube, phase guide tube resonance, wind noise, and internal high-frequency sound reflected by the phase inversion tube are caused. The passive radiator can solve the defects of the inverter tube design, but the frequency response curve of the passive radiator sound box is steep at the initial section, is slightly weaker than the transient stability of the inverter tube open box, has higher cut-off frequency and larger total loss Ql value.

Disclosure of Invention

An object of the utility model is to overcome the not enough of existence among the prior art, provide a many passive radiator audio amplifier, its simple structure can realize the advantage of passive radiator audio amplifier, can improve again that the transient stability that hangs down is weak, and cutoff frequency is high, and the big shortcoming of total loss Ql value for the audio amplifier can reach better sound effect when radiating sound, especially low frequency sound.

According to the utility model provides a technical scheme: a multi-passive radiator sound box is characterized in that:

comprises an upper shell, a lower shell, a plurality of loudspeaker units and a plurality of passive radiators, wherein the upper shell and the lower shell are spliced to form a prolate box body, a plurality of mounting holes for accommodating the loudspeaker units are arranged in the box body, after the upper shell and the lower shell are spliced, the loudspeaker units are arranged in the mounting holes,

the upper shell and the lower shell of the box body are respectively provided with a plurality of radiator mounting holes in an up-down corresponding mode, and radiator units are arranged in the radiator mounting holes.

Furthermore, the upper shell and the lower shell are spliced into a loudspeaker mounting hole along the long axis direction, the loudspeaker mounting holes are arranged along the short axis of the box body in a bilateral symmetry way, a left loudspeaker unit and a right loudspeaker unit are respectively arranged in the loudspeaker mounting holes,

the side of speaker unit is close to the position of box minor face, and the epitheca is provided with passive radiator mounting hole on the left side and the passive radiator mounting hole on the right side along minor axis both sides symmetry respectively, and the inferior valve is also provided with passive radiator mounting hole under the left side and the passive radiator mounting hole under the right side corresponding left side radiator mounting hole and right side radiator mounting hole position department, is equipped with passive radiator and passive radiator down in the respective radiator mounting hole of epitheca and inferior valve respectively.

Further, the number of the plurality of passive radiators is at least 4, and the plurality of passive radiators are arranged in an even number.

Further, the number of the plurality of speaker units is at least 2, and the plurality of speaker units are arranged in an even number.

Further, the left side speaker unit and the right side speaker unit are identical in structure, and the radiation area of the speaker unit is identical to that of the passive radiator.

Furthermore, a plurality of shockproof rings are respectively and correspondingly arranged on the upper shell right above the plurality of passive radiator units.

Furthermore, the upper shell and the lower shell are made of plastic materials.

Compared with the prior art, the utility model, the advantage lies in:

the utility model has the advantages of ingenious, compact and reasonable structure, a plurality of loudspeaker units with consistent shape, size and material are respectively arranged on the same plane along the long axis direction of the oblong box body, and a plurality of passive radiator units are arranged on the positions close to the loudspeaker units; a plurality of speaker units and a plurality of passive radiators share the same box body, and the inner space is communicated. The passive radiator units are driven by the air driven by the loudspeaker units to radiate sound, and simultaneously radiate low-frequency sound to the upper side and the lower side of the box body, so that the sound radiation area of the whole sound box system is increased. The low frequency is improved, the transient stability is improved, and the total loss Ql value is reduced, so that the acoustic characteristics of small distortion, good low frequency and high bearable power are realized under the sound box structure with small volume and thin thickness.

Drawings

Fig. 1 is an exploded perspective view of a preferred embodiment of the present invention.

Fig. 2 is a sectional structure view of the preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of the preferred embodiment of the present invention with the upper shell removed.

Fig. 4 is a schematic cross-sectional view of the preferred embodiment of the present invention with the lower shell removed.

Fig. 5 is an outline view of the preferred embodiment of the present invention.

Detailed Description

The invention is further described with reference to the following specific drawings and examples.

As shown in fig. 1-5, a multi-passive radiator sound box comprises an upper shell 1, a lower shell 2, a plurality of loudspeaker units and a plurality of passive radiators, wherein the upper shell and the lower shell 2 are spliced to form a prolate box body, a plurality of mounting holes for accommodating the loudspeaker units are arranged in the box body, the loudspeaker units are arranged in the mounting holes after the upper shell and the lower shell are spliced, the upper shell and the lower shell of the box body are respectively provided with a plurality of radiator mounting holes in an up-and-down corresponding mode, and the radiator units are arranged in the radiator mounting holes.

The number of the plurality of loudspeaker units is at least 2, and the loudspeaker units are arranged in an even number. In the present embodiment, two speaker units are employed. The left side speaker unit 3 and the right side speaker unit 4 have the same structure, and the radiation area of the speaker units corresponds to the radiation area of the passive radiators.

The upper shell 1 and the lower shell 2 are spliced into a loudspeaker mounting hole along the long axis direction, the loudspeaker mounting holes are arranged along the short axis of the box body in a bilateral symmetry way, a left loudspeaker unit 3 and a right loudspeaker unit 4 are respectively arranged in the loudspeaker mounting holes,

the side of speaker unit is close to the position of box minor face, epitheca 1 along minor axis both sides respectively the symmetry be provided with passive radiator mounting hole 1.1 on the left side and passive radiator mounting hole 1.2 on the right side, inferior valve 2 is also being provided with passive radiator mounting hole 2.1 under the left side and passive radiator mounting hole 2.2 under the right side corresponding left side

radiator mounting hole

5 and 6 positions department of right side radiator mounting hole, to piecing together the back, the radiator mounting hole of epitheca 1 and inferior valve 2 is equipped with passive radiator and passive radiator down respectively in.

The quantity of a plurality of passive radiators is 4 at least, and is the setting of dual, in this embodiment, because the epitheca includes two passive radiator mounting holes on the left and right sides, consequently is equipped with two passive radiators in the epitheca: passive radiator 6 on passive radiator 5 and the right side on the left side, the inferior valve includes two lower passive radiator mounting holes in the left and right sides, consequently is equipped with two passive radiators in the inferior valve: a left lower passive radiator 7 and a right lower passive radiator 8,

the

passive radiators

5, 6, 7 and 8 are completely consistent in size, shape and material, and the

passive radiators

5 and 7 are arranged in a mirror image mode along the long axis direction of the box body; the

passive radiators

6 and 8 are arranged in a mirror image mode along the long axis direction of the box body.

The sound radiation direction of the

speaker units

3, 4 is toward the front of the cabinet;

the sound radiation directions of the

passive radiators

5, 6, 7 and 8 face to the upper side and the lower side of the box body; a plurality of speaker unit and a plurality of passive radiator share the box that same epitheca 1, inferior valve 2 were pieced together and are formed, and the inner space link up.

The size, shape and material of each passive radiator are completely consistent, and the

passive radiators

6 and 8 are arranged in a mirror image mode along the long axis direction of the box body. The passive radiator 5 and the sound radiation direction of the passive radiator 7 are arranged in a 180-degree direction; the passive radiator 6 is disposed at 180 degrees to the sound radiation direction of the passive radiator 8.

The sound radiation directions of the

speaker units

3 and 4 are kept the same, and they are both arranged at 90 degrees to the sound radiation directions of the

passive radiators

5, 6, 7, 8.

A plurality of shockproof rings are respectively and correspondingly arranged on the upper shell 1 right above the plurality of passive radiator units. In this embodiment, two radiators are included in the upper shell, thus corresponding to the two

anti-vibration rings

9, 10.

The upper shell 1 and the lower shell 2 are made of plastic materials.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A multi-passive radiator sound box is characterized in that:

comprises an upper shell (1), a lower shell (2), a plurality of loudspeaker units and a plurality of passive radiators, wherein the upper shell (1) and the lower shell (2) are spliced into a prolate box body, a plurality of mounting holes for accommodating the loudspeaker units are arranged in the box body, after the upper shell and the lower shell are spliced, the loudspeaker units are arranged in the mounting holes,

2. The multiple passive radiator loudspeaker enclosure of claim 1, wherein:

the upper shell (1) and the lower shell (2) are spliced into loudspeaker mounting holes along the long axis direction, the loudspeaker mounting holes are arranged along the short axis of the box body in a bilateral symmetry manner, a left loudspeaker unit (3) and a right loudspeaker unit (4) are respectively arranged in the loudspeaker mounting holes,

the side surface of the loudspeaker unit is close to the short side of the box body, the upper shell (1) is respectively and symmetrically provided with a left upper passive radiator mounting hole (1.1) and a right upper passive radiator mounting hole (1.2) along the two sides of the short axis,

the lower shell (2) is also provided with a left lower passive radiator mounting hole (2.1) and a right lower passive radiator mounting hole (2.2) at the positions corresponding to the left radiator mounting hole (5) and the right radiator mounting hole (6),

an upper passive radiator and a lower passive radiator are respectively assembled in the radiator mounting holes of the upper shell (1) and the lower shell (2).

3. The multiple passive radiator loudspeaker enclosure of claim 1, wherein:

the number of the plurality of passive radiators is at least 4, and the passive radiators are arranged in an even number.

4. The multiple passive radiator loudspeaker enclosure of claim 1, wherein:

the number of the plurality of loudspeaker units is at least 2, and the loudspeaker units are arranged in an even number.

5. The multiple passive radiator loudspeaker enclosure of claim 1, wherein:

the left side loudspeaker unit (3) and the right side loudspeaker unit (4) are consistent in structure, and the radiation area of the loudspeaker units is consistent with that of the passive radiator.

6. The multiple passive radiator loudspeaker enclosure of claim 1, wherein: and a plurality of shockproof rings are respectively and correspondingly arranged right above the plurality of passive radiator units on the upper shell (1).

7. The multiple passive radiator loudspeaker enclosure of claim 1, wherein: the upper shell (1) and the lower shell (2) are made of plastic materials.