CN211909050U - Loudspeaker - Google Patents

Abstract

The utility model provides a loudspeaker, which comprises a lower shell, a sound production unit and a hot melting screen cloth; the lower shell is provided with a surrounding retaining wall matched with the sound production unit in shape; the hot melt screen cloth covers on the surrounding side retaining wall so as to wrap the sound production unit in the surrounding side retaining wall. This design sets up the hot melt screen cloth on sound producing unit's fixed barricade, seals sound producing unit, and this kind of structural design and traditional set up the screen cloth in sound producing unit's a side, occupy some sound absorbing material's space and compare, can maximize remain filling sound absorbing material's back chamber space, the most effectual low frequency resonant frequency that has reduced improves the sound quality of speaker.

Description

Loudspeaker

Technical Field

The utility model relates to a technical field is made to the speaker, especially relates to a speaker.

Background

The conventional speaker includes a closed cabinet and a sound generating unit disposed on the closed cabinet, and a chamber is formed between the closed cabinet and the sound generating unit. Conventionally, in order to achieve a satisfactory bass reproduction effect in an acoustic system, a sound-absorbing material is provided in a cabinet of the acoustic system for adsorbing or desorbing gas in the cabinet, resulting in an effect of increasing a volume and thus lowering a low-frequency resonance frequency.

Among the prior art, in the scheme of adding sound absorbing material in the box, need realize sound absorbing material's good sealed package, otherwise very easily appear sound absorbing material and get into sound generating unit to harm sound generating unit's acoustic performance, influence sound generating unit's life. In order to prevent the sound-absorbing material from entering the sound-generating unit, the prior art has a mesh cloth added on the upper and lower shells of the sound-generating device to separate the sound-generating unit from the sound-absorbing material. Because the screen cloth is located the side of sound generating unit, lead to filling sound absorbing material's box space limited to can't reach furthest's reduction low frequency resonant frequency's effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the loudspeaker is provided, sound absorption materials are filled to the maximum degree, and the low-frequency resonance frequency is reduced most effectively.

In order to solve the technical problem, the utility model discloses a technical scheme be: a loudspeaker comprises a lower shell, a sound production unit and hot-melt screen cloth;

the lower shell is provided with a surrounding retaining wall matched with the sound production unit in shape;

the hot melt screen cloth covers on the surrounding side retaining wall so as to wrap the sound production unit in the surrounding side retaining wall.

Further, the device also comprises an FPC;

a notch is arranged on one side surface of the surrounding edge retaining wall;

the notch is provided with a hot melting column;

the FPC is provided with a long extending edge matched with the notch;

the extending edge is provided with a through hole matched with the hot melting column;

after the through hole on the extending edge of the FPC and the hot melting column are assembled in a hot melting mode, the gap is filled with sealant;

the FPC is electrically connected with the sounding unit in the surrounding side retaining wall through the extended long edge.

Furthermore, the height of the surrounding retaining wall is greater than or equal to that of the sound production unit.

Further, the thickness of the FPC is smaller than the depth of the notch;

the height of the hot melting column is larger than the thickness of the FPC.

Further, the gaps comprise two gaps;

the two notches are symmetrically arranged on one side surface of the surrounding edge retaining wall;

the extension edge is arranged corresponding to the notch.

Furthermore, four sound outlet holes are formed in the bottom surface, close to the hot-melt screen cloth, of the sound production unit;

the four sound holes are respectively positioned at four corners of the sound production unit.

The beneficial effects of the utility model reside in that: the utility model provides a loudspeaker, which comprises a lower shell, a sound production unit and a hot melting screen cloth; the lower shell is provided with a surrounding retaining wall matched with the appearance of the generating unit; the hot melt screen cloth covers the side wall to wrap the sound production unit in the side wall. This design sets up the hot melt screen cloth on sound producing unit's fixed barricade, seals sound producing unit, and this kind of structural design and traditional set up the screen cloth in sound producing unit's a side, occupy some sound absorbing material's space and compare, can maximize remain filling sound absorbing material's back chamber space, the most effectual low frequency resonant frequency that has reduced improves the sound quality of speaker.

Drawings

Fig. 1 is an assembly diagram of a speaker according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a speaker according to an embodiment of the present invention;

fig. 3 is a first internal structure diagram of a speaker according to an embodiment of the present invention;

fig. 4 is a second internal structure diagram of a speaker according to an embodiment of the present invention;

fig. 5 is a structural diagram of a sound generating unit of a speaker according to an embodiment of the present invention;

fig. 6 is a structural diagram of a lower shell of a speaker according to an embodiment of the present invention;

description of reference numerals:

1. a lower case; 2. a sound emitting unit; 3. carrying out hot melting on the mesh cloth; 4. a surrounding edge retaining wall; 5. FPC; 6. a notch; 7. hot melting the column; 8. extending the long side; 9. a through hole; 10. a sound outlet; 11. and (4) an upper shell.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 6, a speaker includes a lower case, a sound generating unit and a heat-fusible mesh;

the lower shell is provided with a surrounding retaining wall matched with the sound production unit in shape;

the hot melt screen cloth covers on the surrounding side retaining wall so as to wrap the sound production unit in the surrounding side retaining wall.

From the above description, the beneficial effects of the present invention are: the utility model provides a loudspeaker, which comprises a lower shell, a sound production unit and a hot melting screen cloth; the lower shell is provided with a surrounding retaining wall matched with the appearance of the generating unit; the hot melt screen cloth covers the side wall to wrap the sound production unit in the side wall. This design sets up the hot melt screen cloth on sound producing unit's fixed barricade, seals sound producing unit, and this kind of structural design and traditional set up the screen cloth in sound producing unit's a side, occupy some sound absorbing material's space and compare, can maximize remain filling sound absorbing material's back chamber space, the most effectual low frequency resonant frequency that has reduced improves the sound quality of speaker.

Further, the device also comprises an FPC;

a notch is arranged on one side surface of the surrounding edge retaining wall;

the notch is provided with a hot melting column;

the FPC is provided with a long extending edge matched with the notch;

the extending edge is provided with a through hole matched with the hot melting column;

after the through hole on the extending edge of the FPC and the hot melting column are assembled in a hot melting mode, the gap is filled with sealant;

the FPC is electrically connected with the sounding unit in the surrounding side retaining wall through the extended long edge.

As can be seen from the above description, the notch serves as both a relief groove and a guiding and positioning function for the installation of the FPC. Secondly, the hot melting column can be fine and play the fixed action to FPC, avoids speaker FPC to appear the aversion phenomenon in the use, leads to the circuit contact failure.

Furthermore, the height of the surrounding retaining wall is greater than or equal to that of the sound production unit.

According to the description, the height of the surrounding retaining wall is larger than or equal to that of the sound generating unit, and the arrangement of the height of the sound generating unit aims to ensure that the hot-melt screen cloth is not extruded by the sound generating unit after being bonded and fixed, so that the hot-melt screen cloth is more reliable to fix.

Further, the thickness of the FPC is smaller than the depth of the notch;

the height of the hot melting column is larger than the thickness of the FPC.

From the above description, the thickness of the FPC is smaller than the depth of the notch, and the design purpose of the FPC is to ensure that the bonding position of the hot-melt screen cloth and the surrounding retaining wall is smoother. The height of the hot melting column is larger than the thickness of the FPC, the design aim is to ensure the fixing reliability of the FPC, and the subsequent hot melting fixing processing procedure is simple and convenient.

Further, the gaps comprise two gaps;

the two notches are symmetrically arranged on one side surface of the surrounding edge retaining wall;

the extension edge is arranged corresponding to the notch.

As can be seen from the above description, the provision of a plurality of notches can improve the fixing stability of the FPC.

Furthermore, four sound outlet holes are formed in the bottom surface, close to the hot-melt screen cloth, of the sound production unit;

the four sound holes are respectively positioned at four corners of the sound production unit.

Referring to fig. 1 to 6, a first embodiment of the present invention is: a loudspeaker comprises a lower shell 1, a sound production unit 2 and hot-melt screen cloth 3;

the lower shell 1 is provided with a surrounding retaining wall 4 matched with the sound generating unit 2 in shape;

the hot melt screen cloth 3 cover in on the surrounding edge barricade 4 in order to incite somebody to action 2 parcel in the surrounding edge barricade 4.

Specifically, the hot-melt mesh cloth 3 is fixedly connected with the upper part of the surrounding retaining wall 4 in a hot-melt fixing mode; or fixed by adopting a glue bonding mode.

Referring to fig. 2 and 3, specifically, the height of the surrounding wall 4 is greater than or equal to the height of the sound generating unit 2.

Preferably, the height of the surrounding wall 4 is equal to the height of the sound generating unit 2.

Referring to fig. 3 and 5, specifically, four sound holes 10 are formed in a bottom surface of the sound generating unit 2 close to the hot-melt mesh cloth 3;

the four sound outlet holes 10 are respectively located at four corners of the sound generating unit 2.

Referring to fig. 2, in particular, the sound-absorbing speaker further includes an upper shell 11, the upper shell 11 and the lower shell 1 form a housing of the speaker, and the sound-absorbing material and the sound-generating unit 2 are respectively disposed in the housing formed by the upper shell 11 and the lower shell 1.

Referring to fig. 1 to 5, a second embodiment of the present invention is: the embodiment further includes an FPC5 on the basis of the first embodiment;

a notch 6 is arranged on one side surface of the surrounding edge retaining wall 4;

the notch 6 is provided with a hot melting column 7;

an extension edge 8 matched with the notch 6 is arranged on the FPC 5;

the elongated edge 8 is provided with a through hole 9 matched with the hot melting column 7;

after the through hole 9 on the extending edge 8 of the FPC5 is assembled with the hot melting column 7 in a hot melting way, the gap 6 is filled by using sealant;

the FPC5 is electrically connected with the sounding unit 2 in the surrounding retaining wall 4 through the extending edge 8.

Referring to fig. 2 and 3, specifically, the thickness of the FPC5 is smaller than the depth of the notch 6;

the height of the heat-melting column 7 is larger than the thickness of the FPC 5.

Referring to fig. 6, specifically, the two gaps 6 are included;

the two notches 6 are symmetrically arranged on one side surface of the surrounding edge retaining wall 4;

the extending edge 8 is arranged corresponding to the notch 6.

To sum up, the utility model provides a loudspeaker, which comprises a lower shell, a sound production unit and a hot melting mesh cloth; the lower shell is provided with a surrounding retaining wall matched with the appearance of the generating unit; the hot melt screen cloth covers the side wall to wrap the sound production unit in the side wall. This design sets up the hot melt screen cloth on sound producing unit's fixed barricade, seals sound producing unit, and this kind of structural design and traditional set up the screen cloth in sound producing unit's a side, occupy some sound absorbing material's space and compare, can maximize remain filling sound absorbing material's back chamber space, the most effectual low frequency resonant frequency that has reduced improves the sound quality of speaker. Furthermore, a gap for installing the FPC is formed in the surrounding retaining wall, a hot melting column is arranged on the gap, the hot melting column is installed in the through hole in the FPC and then is subjected to hot melting and fixing, the hot melting column and the gap can well fix the FPC, and the phenomenon that the FPC is displaced in the using process of the loudspeaker to cause poor circuit contact is avoided; but also can improve the production and assembly efficiency and the productivity.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims (6)

1. A loudspeaker is characterized by comprising a lower shell, a sound production unit and hot-melt screen cloth;

the lower shell is provided with a surrounding retaining wall matched with the sound production unit in shape;

the hot melt screen cloth covers on the surrounding side retaining wall so as to wrap the sound production unit in the surrounding side retaining wall.

2. A loudspeaker according to claim 1, further comprising an FPC;

a notch is arranged on one side surface of the surrounding edge retaining wall;

the notch is provided with a hot melting column;

the FPC is provided with a long extending edge matched with the notch;

the extending edge is provided with a through hole matched with the hot melting column;

after the through hole on the extending edge of the FPC and the hot melting column are assembled in a hot melting mode, the gap is filled with sealant;

the FPC is electrically connected with the sounding unit in the surrounding side retaining wall through the extended long edge.

3. The speaker of claim 1, wherein the height of the retaining wall is greater than or equal to the height of the sound generating unit.

4. A loudspeaker according to claim 2, wherein the thickness of the FPC is less than the depth of the notch;

the height of the hot melting column is larger than the thickness of the FPC.

5. A loudspeaker according to claim 2, wherein said notches comprise two;

the two notches are symmetrically arranged on one side surface of the surrounding edge retaining wall;

the extension edge is arranged corresponding to the notch.

6. The loudspeaker according to claim 1, wherein four sound holes are formed in a bottom surface of the sound generating unit close to the hot-melt mesh cloth;

the four sound holes are respectively positioned at four corners of the sound production unit.

Images