CN212344051U - Loudspeaker module - Google Patents

Abstract

The utility model provides a loudspeaker module, which comprises a shell, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixed in the shell, the vibration system comprises a vibrating diaphragm and a voice coil for driving the vibrating diaphragm to vibrate and sound, and the edge of the vibrating diaphragm is fixedly combined with the shell; the casing is provided with an installation inclined plane for fixedly installing the vibrating diaphragm at a position corresponding to the edge of the vibrating diaphragm, and the installation inclined plane is of an inclined structure. Compared with the prior art, the loudspeaker module sets up the firmness of the combination of installation inclined plane increase vibrating diaphragm and casing through the casing, reduces the risk that the cavity appears in the bonding position, thereby promotes bonding stability and promotes product overall structure's stability.

Description

Loudspeaker module

Technical Field

The utility model belongs to the technical field of the electroacoustic transduction, specifically, the utility model relates to a speaker module.

Background

With the rapid development of scientific technology, the requirements of consumers on electronic products are higher and higher, and the designs of electronic products such as mobile phones and the like tend to be light and thin based on the requirements of consumers on electronic products. The speaker module, as a commonly used electroacoustic transducer device for converting electric energy into acoustic energy, plays an indispensable role in a sound reproduction system.

The loudspeaker module in the prior art usually adopts casing and vibrating diaphragm to connect the face bonding and come fixed vibrating diaphragm, and the bonding area depends on the thickness of casing wall, causes the area of bonding undersize very easily and the risk of appearing the cavity, leads to casing and vibrating diaphragm bonding firmness not enough and the phenomenon that drops, direct influence the acoustic performance of loudspeaker module.

Therefore, it is necessary to provide a new speaker module to solve the above problems.

Disclosure of Invention

The utility model aims at overcoming above-mentioned technical problem, provide an improved loudspeaker module. In order to solve the technical problem, the utility model discloses a speaker module, including the casing and being fixed in vibration system and magnetic circuit in the casing, the vibration system includes the vibrating diaphragm and the voice coil loudspeaker voice coil that drives the vibrating diaphragm vibration sound production, characterized in that, the edge of vibrating diaphragm and the casing fixed combination; the casing is provided with an installation inclined plane for fixedly installing the vibrating diaphragm at a position corresponding to the edge of the vibrating diaphragm, and the installation inclined plane is of an inclined structure.

Preferably, the included angle between the installation inclined plane and the horizontal direction is an acute angle or an obtuse angle.

Preferably, the housing includes a sidewall enclosing an accommodating space, the sidewall is provided with an installation inclined surface facing the accommodating space, and an edge of the diaphragm is fixed to the installation inclined surface.

Preferably, the mounting inclined plane is horizontally provided with a connecting surface facing the accommodating space, the connecting surface and one end of the mounting inclined plane far away from the side wall are located at the same horizontal height, and the edge of the diaphragm is fixed on the mounting inclined plane and the connecting surface.

Preferably, the side wall, the mounting slope and the connecting surface are integrally formed.

Preferably, the diaphragm includes a central portion, a corrugated portion surrounding the central portion, and an edge portion integrally provided with the corrugated portion; the edge portion is fixed to the mounting slope.

Preferably, the installation inclined plane is provided with a glue storage groove, and the glue storage groove can be a continuous annular groove or an intermittent groove.

Preferably, the glue storage grooves are uniformly arranged on the installation inclined plane.

Preferably, the magnetic circuit system comprises a magnetic conductive plate, a central magnetic steel arranged on the magnetic conductive plate, a side magnetic steel arranged around the central magnetic steel, and a central washer and a side washer respectively arranged on the central magnetic steel and the side magnetic steel.

Compared with the prior art, the loudspeaker module in the utility model has the advantages that,

the loudspeaker module sets up the bonding area that the installation inclined plane liberated vibrating diaphragm and casing through the casing and depends on the restriction of casing lateral wall thickness, sets up the firmness of the combination of installation inclined plane increase vibrating diaphragm and casing, reduces the risk that the cavity appears in bonding position, thereby promotes bonding stability and promotes product overall structure's stability.

Drawings

Fig. 1 is a top view structural diagram of the speaker module of the present invention with the front cover removed.

Fig. 2 is the perspective structure diagram of the loudspeaker module vibrating diaphragm of the present invention.

Fig. 3 is a cross-sectional view of the speaker module of the present invention along the line B-B.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the components set forth in these embodiments and the words "upper," "lower," etc. describing the location of structures are intended only to illustrate the manner in which the components of the invention are placed and are not intended to limit the scope of the invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Referring to fig. 3, the speaker module of the present embodiment includes a housing, and a vibration system and a magnetic circuit system fixed in the housing. The shell comprises a side wall 12 with an accommodating space, a top wall 11 and a bottom wall 13 are respectively and fixedly arranged at two ends of the side wall 12 to cover the accommodating space, and the vibration system and the magnetic circuit system are fixed in the accommodating space. The vibration system comprises a vibrating diaphragm 21 and a voice coil for driving the vibrating diaphragm 21 to vibrate and sound, the magnetic circuit system comprises a magnetic conduction plate 33, a central magnetic steel 311 fixed on the magnetic conduction plate 33, a side magnetic steel 312 arranged around the central magnetic steel 311 and forming a magnetic gap, a central washer 321 and a side washer 322 respectively arranged on the central magnetic steel 311 and the side magnetic steel 312, and the voice coil is suspended in the magnetic gap. When the loudspeaker module works, the voice coil is electrified with audio current, and the voice coil vibrates up and down under the action of ampere force under the action of the magnetic field to push the vibrating diaphragm 21 to vibrate and sound in a reciprocating mode.

Referring to fig. 2, the diaphragm 21 of the speaker module of the present invention includes a central portion, a corrugated portion surrounding the central portion, and an edge portion integrally formed with the corrugated portion; the center portion of the diaphragm 21 is combined with a fixed dome 22 to enhance the vibration strength, and the edge portion of the diaphragm 21 is fixed to the housing.

Referring to fig. 2 and 3, the housing is provided with an installation slope 121 at a position corresponding to the edge portion of the diaphragm, and specifically, the housing includes a sidewall 12, the sidewall 12 is provided with the installation slope 121 toward the receiving space, and the edge portion of the diaphragm 21 is fixed to the installation slope 121.

Further, the angle between the installation slope 121 and the horizontal direction may be an acute angle or an obtuse angle.

Further, the mounting inclined surface 121 horizontally arranges the connecting surface 122 toward the accommodating space, and the connecting surface 122 and one end of the mounting inclined surface 121 far away from the side wall 12 are at the same horizontal height. Correspondingly, the edge portion of the diaphragm 21 includes an inclined section 211 fixed to the mounting inclined surface 121 and a horizontal section 212 fixed to the connection surface 122. In combination with the installation slant 121 and the connection surface 122, the inclined section 211 of the diaphragm 21 may be formed by bending and extending the horizontal section 212 upwards or downwards.

Preferably, the housing sidewall 12, the mounting ramp 121 and the attachment face 122 are integrally formed.

The utility model discloses a loudspeaker module, vibrating diaphragm 21 bond fixedly with the casing, through set up installation inclined plane 121 on casing lateral wall 21, increase casing and vibrating diaphragm 21's bonding area to reduce the cavity risk point of casing and the 21 junctions of vibrating diaphragm, make vibrating diaphragm 21's bonding effect more stable.

In order to further increase the bonding effect and reduce the risk points of the cavity, the installation inclined surface 121 may be provided with a glue storage groove (not shown in the figure), which may be a continuous annular groove circumferentially arranged around the installation inclined surface 121, and may be one or more than one. The glue storage groove can be a groove which is discontinuously arranged, the groove is evenly arranged along the installation inclined plane, and can be a vertical groove or a horizontal groove. Through the setting of glue storage groove, increase the filler volume between installation inclined plane 121 and vibrating diaphragm 21, further increase strong bonding effect and prevent excessive gluey.

In order to reduce the overall thickness of the speaker module, the bottom wall 13 of the speaker module of this embodiment is provided with a through hole, and the magnetic circuit system is fixed in the through hole and is in the same horizontal plane with the bottom wall 13. In detail, the bottom wall 13 of the casing is provided with a through hole, and the magnetic conduction plate 33 covers the through hole. The bottom wall 13 is provided with an abdicating step 131 around the through hole, and the yoke 33 is provided with a combining part combined with the abdicating step 131, and the combining part is fixed on the abdicating step 131. The bottom wall 13 includes a first bottom surface facing the accommodating space and a second bottom surface opposite to the first bottom surface, the magnetic yoke 33 includes a fixing surface for fixing the magnetic steel assembly and a third bottom surface opposite to the fixing surface, the third bottom surface of the magnetic yoke 33 and the second bottom surface of the bottom wall 13 are located on the same connecting surface, and the fixing surface of the magnetic yoke 33 and the first bottom surface of the bottom wall are located on the same connecting surface.

Roof 11, lateral wall 12 and diapire 13 of speaker module, in other embodiments, also can be the epitheca, mesochite, the combination of the three casing of inferior valve or the combination of first casing and second casing, wherein, the second casing is including enclosing into accommodating space's lateral wall and diapire. The utility model discloses a loudspeaker module does not require to the concrete constitution of casing, as long as can realize the utility model discloses a loudspeaker module's lateral wall sets up the design on installation inclined plane can.

The embodiment of the utility model provides a loudspeaker module, this loudspeaker module set up the firmness that the combination of installation inclined plane increases vibrating diaphragm and casing through the casing, and the bonding area of liberation vibrating diaphragm and casing depends on the restriction of casing thickness, reduces the risk that the cavity appears in the bonding position, thereby promotes bonding stability and promotes product overall structure's stability.

Above-mentioned embodiment is the utility model discloses a concrete implementation mode, in the practical application, can be right in form and detail the utility model discloses do various changes, the fan is in the utility model discloses various alternations of making on the basic idea realize the technical effect, all be within the protection scope.

Claims (9)

1. A loudspeaker module comprises a shell, and a vibration system and a magnetic circuit system which are fixed in the shell, wherein the vibration system comprises a vibrating diaphragm and a voice coil for driving the vibrating diaphragm to vibrate and sound; the casing is provided with an installation inclined plane for fixedly installing the vibrating diaphragm at a position corresponding to the edge of the vibrating diaphragm, and the installation inclined plane is of an inclined structure.

2. The speaker module as claimed in claim 1, wherein the mounting ramp is at an acute or obtuse angle to the horizontal.

3. The speaker module as claimed in claim 1, wherein the housing includes a sidewall enclosing a receiving space, the sidewall having a mounting slope facing the receiving space, and an edge of the diaphragm is fixed to the mounting slope.

4. The speaker module as claimed in claim 3, wherein the mounting inclined plane has a connecting plane horizontally disposed toward the receiving space, the connecting plane and an end of the mounting inclined plane away from the sidewall are at the same horizontal level, and an edge of the diaphragm is fixed to the mounting inclined plane and the connecting plane.

5. The speaker module as recited in claim 4, wherein said side wall, said mounting ramp and said attachment face are integrally formed.

6. The speaker module as recited in claim 1, wherein the diaphragm comprises a central portion, a corrugated portion disposed around the central portion, and an edge portion disposed integrally with the corrugated portion; the edge portion is fixed to the mounting slope.

7. The speaker module as claimed in claim 1, wherein the mounting ramp is provided with a glue reservoir, the glue reservoir being a continuous annular groove or an intermittent groove.

8. The speaker module as recited in claim 7, wherein said glue reservoirs are uniformly disposed on said mounting ramp.

9. The speaker module as claimed in claim 1, wherein the magnetic circuit system comprises a magnetic conductive plate, a central magnetic steel disposed on the magnetic conductive plate, a side magnetic steel disposed around the central magnetic steel, and a central washer and a side washer disposed on the central magnetic steel and the side magnetic steel, respectively.

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