CN107592596B

CN107592596B - Portable sound box

Info

Publication number: CN107592596B
Application number: CN201711049729.8A
Authority: CN
Inventors: 李唐; 余亚光
Original assignee: Shenzhen Jonter Digital Co ltd
Current assignee: Shenzhen Jonter Digital Co ltd
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2024-04-02
Anticipated expiration: 2037-10-31
Also published as: CN107592596A

Abstract

The invention discloses a portable sound box, which comprises a front shell, a rear cover, a loudspeaker and two vibrating diaphragms, wherein the front shell and the rear cover jointly form a cavity, and the loudspeaker is arranged in the cavity; the two vibrating diaphragms are inlaid on the rear cover, a distance is arranged between the two vibrating diaphragms, and magnetic steel of the loudspeaker is right opposite to the distance between the two vibrating diaphragms. Compared with the loudspeaker box with a single vibrating diaphragm in the prior art, the loudspeaker box can effectively improve the volume and the tone quality; the magnetic steel setting of loudspeaker can be avoided to two vibrating diaphragms, can guarantee that the vibration stroke of loudspeaker is not influenced, can make the audio amplifier very thin again, accords with the user to the big small demand of audio amplifier volume.

Description

Portable sound box

Technical Field

The invention relates to the technical field of sound boxes, in particular to a portable sound box.

Background

Portable sound boxes are deeply favored by outdoor sporters at present, and the popular trend of the portable sound boxes is that the portable sound boxes are small in volume and large in volume, but the portable sound boxes are conflicted with each other, so that the portable sound boxes are always a great trouble in sound box design. In traditional audio amplifier design, the vibrating diaphragm is in the condition of putting in the front and can not put down, is put behind the loudspeaker in general and covers, and the magnet steel that is just facing to loudspeaker is just to the vibrating diaphragm promptly, and the vibrating diaphragm has the stroke when vibrating, can hit the magnet steel of loudspeaker when vibrating the range of vibrating diaphragm is too big, influences the tone quality of audio amplifier. In order to ensure that the sound box has larger volume and better tone quality, the magnetic steel is prevented from being bumped by the vibrating diaphragm in the vibration process, and the sound box has to be made thick.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the portable sound box has the advantages of large volume, good sound quality and small volume.

In order to solve the technical problems, the invention adopts the following technical scheme:

the portable sound box comprises a front shell, a rear cover, a loudspeaker and two vibrating diaphragms, wherein the front shell and the rear cover jointly form a cavity, and the loudspeaker is arranged in the cavity; the two vibrating diaphragms are inlaid on the rear cover, a distance is arranged between the two vibrating diaphragms, and magnetic steel of the loudspeaker is right opposite to the distance between the two vibrating diaphragms.

The invention has the beneficial effects that: compared with the loudspeaker box with a single vibrating diaphragm in the prior art, the loudspeaker box can effectively improve the volume and the tone quality; the magnetic steel setting of loudspeaker can be avoided to two vibrating diaphragms, can guarantee that the vibration stroke of loudspeaker is not influenced, can make the audio amplifier very thin again, accords with the user to the big small demand of audio amplifier volume.

Drawings

FIG. 1 is an exploded view of a portable speaker according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a rear cover and a diaphragm of a portable speaker according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a portable audio amplifier according to an embodiment of the present invention;

description of the reference numerals:

1. a front shell; 2. a rear cover; 3. a vibrating diaphragm; 4. a horn; 41. magnetic steel; 5. a horn bracket; 6. a PCB board; 7. a hard sheet; 8. a USB cover; 9. an iron net; 10. foot pad.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

The most critical concept of the invention is that two vibrating diaphragms 3 are arranged on the end face of the rear cover 2, and a space is arranged between the two vibrating diaphragms 3, so that the magnetic steel 41 of the loudspeaker 4 is arranged opposite to the space between the two vibrating diaphragms 3.

Referring to fig. 1 and 2, a portable sound box includes a front shell 1, a rear cover 2, a speaker 4 and two diaphragms 3, wherein the front shell 1 and the rear cover 2 together form a cavity, and the speaker 4 is disposed in the cavity; the two vibrating diaphragms 3 are inlaid on the rear cover 2, a distance is arranged between the two vibrating diaphragms 3, and the magnetic steel 41 of the loudspeaker 4 is opposite to the distance between the two vibrating diaphragms 3.

From the above description, the beneficial effects of the invention are as follows: compared with the loudspeaker box with a single vibrating diaphragm in the prior art, the loudspeaker box can effectively improve the volume and the tone quality; the magnetic steel setting of loudspeaker can be avoided to two vibrating diaphragms, can guarantee that the vibration stroke of loudspeaker is not influenced, can make the audio amplifier very thin again, accords with the user to the big small demand of audio amplifier volume.

Further, the two diaphragms 3 are symmetrically disposed with respect to the magnetic steel 41.

From the above description, the consistency of the vibration of the two diaphragms can be ensured, and the tone quality of the loudspeaker box is ensured.

Further, the distance between the two diaphragms 3 is greater than or equal to the diameter of the magnetic steel 41.

Further, the diaphragm 3 and the rear cover 2 are integrally formed.

According to the above description, the vibrating diaphragm and the rear cover which are integrally formed can ensure that a gap cannot appear at the joint of the vibrating diaphragm and the rear cover, and good sound quality of the loudspeaker box is ensured.

Further, a hard sheet 7 is adhered to the side surface of the diaphragm 3, which is close to the cavity.

From the above description, the arrangement of the hard sheet can increase the low frequency dynamics of the sound box.

Further, the loudspeaker comprises a loudspeaker bracket 5 and a PCB 6, wherein a mounting hole is formed in the loudspeaker bracket 5, and the loudspeaker 4 is arranged in the mounting hole; the PCB 6 is connected to the side edge of the horn bracket 5.

Further, a USB socket is disposed at a position corresponding to the PCB 6 on the side of the front case 1, and a USB cover 8 is disposed at the USB socket.

As can be seen from the above description, the user can plug in other storage devices through the USB interface, so as to play audio on the sound box.

Further, through holes are formed in positions, corresponding to the loudspeaker 4, of the front shell 1, and a layer of iron net 9 is arranged on the front surface of the front cover.

Further, the diaphragm 3 is made of silica gel.

Example 1

Referring to fig. 1, a first embodiment of the present invention is as follows: the utility model provides a portable sound box, includes preceding shell 1, back lid 2, loudspeaker 4 and two vibrating diaphragms 3, back lid 2 lid is located the back of preceding shell 1, preceding shell 1 and back lid 2 form a cavity jointly, loudspeaker 4 set up in the cavity, just loudspeaker 4's magnet steel 41 orientation back lid 2 sets up.

As shown in fig. 2 and 3, the two diaphragms 3 are inlaid on the rear cover 2, a space is provided between the two diaphragms 3, and the magnetic steel 41 of the loudspeaker 4 is opposite to the space between the two diaphragms 3. Preferably, the two diaphragms 3 are symmetrically arranged with respect to the magnetic steel 41 of the loudspeaker 4, that is, the two diaphragms 3 are respectively arranged at the left and right sides of the magnetic steel 41. The distance between the two diaphragms 3 is larger than or equal to the diameter of the magnetic steel 41, so that the diaphragms 3 can avoid the interference of the magnetic steel 41 completely in the vibration direction. In this embodiment, the distance between the two diaphragms 3 is 1.1-1.4mm larger than the diameter of the magnetic steel 41. In order to ensure a good sealing effect between the diaphragm 3 and the rear cover 2, the diaphragm 3 and the rear cover 2 are integrally formed, and of course, the diaphragm 3 and the rear cover 2 can also be independently formed, and finally are tightly adhered by glue. The vibrating diaphragm 3 is made of silica gel. Preferably, a hard sheet 7 is adhered to the inner side (i.e. the side close to the cavity) of the diaphragm 3, so that the bass effect of the loudspeaker box is better.

The portable sound box further comprises a loudspeaker bracket 5 and a PCB 6, wherein a mounting hole is formed in the loudspeaker bracket 5, and the loudspeaker 4 is arranged in the mounting hole; the PCB 6 is connected to the side edge of the horn bracket 5. The side of the front shell 1 is provided with a USB socket at a position corresponding to the PCB 6, and a USB cover 8 is arranged at the USB socket. Through holes are formed in positions, corresponding to the loudspeaker 4, of the front side of the front shell 1, and a layer of iron net 9 is arranged on the front surface of the front cover. The bottom of the front shell 1 is provided with two foot pads 10, which facilitate the stable placement of the sound box on the ground or other platforms.

In summary, the portable loudspeaker box provided by the invention is provided with the double vibrating diaphragms, and the double vibrating diaphragms are completely avoided from being arranged on the magnetic steel 41 of the loudspeaker 4, so that the loudspeaker box can be ensured to have larger volume, and the volume of the loudspeaker box can be reduced.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.

Claims

1. The portable sound box is characterized by comprising a front shell, a rear cover, a loudspeaker and two vibrating diaphragms, wherein the front shell and the rear cover jointly form a cavity, and the loudspeaker is arranged in the cavity; the two vibrating diaphragms are inlaid on the rear cover, a distance is arranged between the two vibrating diaphragms, the magnetic steel of the loudspeaker is opposite to the distance between the two vibrating diaphragms, and the distance between the two vibrating diaphragms is 1.1-1.4mm larger than the diameter of the magnetic steel; perspective is carried out along the front-back direction of the portable sound box, and the area corresponding to the vibrating diaphragm is partially overlapped with the area corresponding to the loudspeaker; the vibrating diaphragm includes a ring portion, the whole rectangle frame form that is of ring portion, ring portion includes four end to end's indent limit, two in the vibrating diaphragm, two that are close to each other distance between the central line of indent limit is greater than the diameter of magnet steel, and carries out perspective along portable audio amplifier fore-and-aft direction, two that are close to each other the region that the indent limit corresponds with the region that the loudspeaker corresponds exists the coincidence region.

2. The portable speaker of claim 1, wherein the two diaphragms are symmetrically disposed with respect to the magnetic steel.

3. The portable audio enclosure of claim 1, wherein the diaphragm is integrally formed with the rear cover.

4. The portable speaker of claim 1, wherein a rigid sheet is affixed to a side of the diaphragm adjacent the cavity.

5. The portable sound box according to claim 1, further comprising a speaker bracket and a PCB board, wherein the speaker bracket is provided with a mounting hole, and the speaker is installed in the mounting hole; the PCB board is connected to the side edge of the loudspeaker support.

6. The portable speaker of claim 5, wherein a USB socket is provided at a location of a side of the front case corresponding to the PCB, and a USB cover is provided at the USB socket.

7. The portable speaker of claim 5, wherein the front shell has a through hole at a position corresponding to the speaker, and a layer of iron net is disposed on a front surface of the front shell.

8. The portable speaker of claim 1, wherein the diaphragm is made of silica gel.