TWI458360B - And a method for manufacturing the microphone - Google Patents

Description

Audio network assembly for microspeaker and manufacturing method thereof

The present invention relates to a microspeaker, and more particularly to a sound net assembly that utilizes injection molding to integrally form a mesh body and a seat body.

Micro-speakers, on mobile phones or tablets, are one of the indispensable parts. With the speaker, the phone or tablet can be played to achieve the function of sound amplification. The sound and the sound of the speaker also determine the sound quality. Good or bad.

As mobile phones or tablets become more and more thin, the size of micro-speakers is getting smaller and smaller. The traditional micro-speaker's sound network assembly is mainly provided with a mesh body on the wall of a channel. The mesh body is generally adhered to the leading edge of the channel wall by adhesive means. However, by means of adhesion, it is easy to cause the mesh body to be subjected to an external force or because the adhesion is not correct, causing the mesh body to fall off, thereby affecting the sound quality.

As shown in FIGS. 1 and 2, in order to improve the above-described method of fixing the mesh by adhesion, the conventional sound network assembly is mostly above the channel tube wall A, and the mesh body is used by a cover B. C is fixed at the upper end edge of the channel tube wall A. After the cover B covers the upper side of the channel tube wall A, the cover body B and the channel tube wall A are fixed by means of high frequency, etc., so that the mesh body C can be stably fixed to the channel tube. On wall A.

However, as the volume of the microspeaker is smaller, the above method of fixing the mesh C by the cover B is necessary because a certain volume must be reserved between the cover B and the wall A of the channel tube. With fixed and fixed, it can not meet the requirements of more miniaturization.

To this end, how to provide a sound network assembly that can meet the requirements of miniaturization of the speaker and provide a height reduction of the channel wall is the technical means to be solved by the present invention.

In view of the above problems, the present invention provides a sound net assembly for a microspeaker and a manufacturing method thereof, which are mainly formed by integrally forming a seat body having a channel wall by means of an injection method on a mesh body. The miniaturization of the speaker requires strengthening the structural strength between the channel wall and the mesh body.

To achieve the above object, the sound net assembly for a microspeaker of the present invention comprises a mesh body and a body. Wherein, a mesh is formed on the mesh body, and the seat body is integrally formed on the mesh body by injection molding, and a hollow channel wall is formed on the seat body, and the mesh system is fixed on the channel wall. Above the edge. In the manufacturing process, the mesh system is first adhered to a plate body, and the mesh body is installed in a mold through the plate body, and a seat body having a channel wall is formed in the mold by injection molding. The body can be integrally formed on the mesh body to strengthen the structural strength between the mesh body and the channel tube wall, and at the same time, the height of the channel tube wall can be changed in the injection molding stage according to the use requirement. Miniaturization requirements for speakers.

In order to achieve the above object, the present invention provides a method for manufacturing a sound net assembly for a microspeaker, comprising the steps of: positioning: a mesh body having a mesh, pre-fixed to a plate body, and fixing the plate body In the fixture, the mesh body is located above the fixture.

Molding: the fixture is placed in a first mold base, the plate body is fixed by the first mold base and the jig, and a second mold base is combined with the first mold base to form a forming space. The mesh body is located in the forming space, and a seat body having a channel wall is formed by injection molding in the forming space, so that the mesh body is formed on the channel tube wall, and the mesh body and the channel tube wall An overlapping contact region is formed therebetween, in which the channel tube wall is partially embedded in the mesh of the mesh body.

Demolding: After the seat body is cooled and solidified, the seat body is removed from the first mold base and the second mold base.

The conductor further includes a conductor. In the molding step, the conductor is first placed on the second mold base, and the first mold base and the second mold base are combined. When the seat body is formed by injection, the guide system is partially embedded. In the body, part of the body is exposed on the body, and a hole is formed on the conductor opposite to the lower edge of the channel wall, and a plurality of T-shaped fixing pieces are protruded from the periphery of the hole. The fixing piece is embedded at the lower edge of the channel tube wall so that its conductor can be fixed to the seat body.

Wherein, the periphery of the conductor is further formed with an embedded piece, the embedded piece and the conductor are located on different planes, and the embedded piece is embedded in the seat body, so that the conductor can be more effectively fixed on the seat body.

A‧‧‧ channel wall

B‧‧‧ cover

C‧‧‧ mesh

10‧‧‧ mesh

20‧‧‧Conductor

21‧‧‧Perforation

22‧‧‧T-type fixed piece

23‧‧‧ embedded film

30‧‧‧ body

31‧‧‧ channel wall

40‧‧‧ board

41‧‧‧Positioning holes

50‧‧‧ fixture

51‧‧‧ first mold base

52‧‧‧Second mold base

53‧‧‧Forming space

Figure 1 is a schematic cross-sectional view of a conventional speaker when installed.

Figure 2 is a schematic cross-sectional view of a conventional speaker after installation.

Figure 3 is a schematic view of the present invention.

Figure 4 is a schematic view showing the relative position of the conductor and the mesh body of the present invention.

Figure 5 is a schematic cross-sectional view of the present invention.

Fig. 6 is a partially enlarged schematic view of Fig. 5.

Figure 7 is a schematic flow chart of the present invention.

Figure 8 is a schematic view showing the mesh body of the present invention fixed on the plate body.

Figure 9 is a cross-sectional view showing the mold of the present invention.

Figure 10 is a cross-sectional view of the present invention before molding.

As shown in FIGS. 3 and 4, the sound network assembly of the present invention comprises a mesh body 10, a conductor 20, and a body 30.

The mesh body 10 is provided with a grid (not shown in the drawing). The conductor 20 is located below the mesh body 10 and has a spacing formed between the mesh body 10. The conductor 20 is formed with a through hole 21 at a position below the mesh body 10, and a plurality of T-shaped fixing pieces 22 are disposed inside the through hole 21. The T-shaped fixing pieces 22 are slightly bent in the direction of the mesh body 10, and the peripheral edge of the conductor 20 is outwardly convexly provided with the embedded piece 23, and the conductor 20 and the embedded piece 23 are located on different planes. In the present embodiment, the embedded piece 23 is formed by obliquely extending the peripheral edge of the conductor 20 in the outward direction.

As shown in Fig. 5, the base body 30 is integrally formed between the mesh body 10 and the conductor 20 by injection molding, and is used to fix the mesh body 10 and the conductor 20, and the embedded piece 23 of the conductor 20 is attached. It is embedded in the base 30 to expose a portion of the conductor 20 to the base 30. The hollow body tube wall 31 is formed on the base body 30, and the channel tube wall 31 is formed by the through hole 21 of the conductor 20 extending toward the mesh body 10. The T-shaped fixing piece 22 of the conductor 20 is embedded in The lower edge of the channel tube wall 31 is located, and the mesh body 10 is embedded at the upper edge of the channel tube wall 31.

As shown in Figures 5 and 6, the mesh body 10 and the conductor 20 are utilized. The base body 30 is coupled and fixed, and since the base body 30 is formed between the mesh body 10 and the conductor 20 by injection molding, the peripheral edge of the mesh body 10 and the channel tube wall 31 of the base body 30 are overlapped. In the contact area, the channel tube wall 31 is partially embedded in the mesh 11 of the mesh body 10 in the overlapping contact area, so that the channel tube wall 31 is embedded in the mesh 11 of the mesh body 10, so that the contact area is Its mesh body 10 is effectively fixed at the upper edge of the channel tube wall 31 of the seat.

In the present embodiment, the mesh body 10 is fixed at the upper edge of the channel tube wall 31, and the upper edge of the channel tube wall 31 is substantially coplanar with the upper edge of the mesh body 10. However, in practice, the upper edge of the mesh body 10 may also be slightly lower than the upper edge of the channel tube wall 31.

It should be noted that in the present invention, the base body 30 is mainly formed on the mesh body 10 by injection molding, and a part of the channel tube wall 31 is embedded in the partial mesh 11 of the mesh body 10. Therefore, the mesh body 10 can be more effectively fixed on the channel tube wall 31, and the structural strength of the mesh body 10 and the channel tube wall 31 can be increased, and the height of the channel tube wall 31 can also be seen as needed. In the injection molding stage, the height is set first, so that the height of the body channel wall 31 can be adjusted according to the use requirements, thereby satisfying the miniaturization requirements of the speaker.

As shown in FIG. 5 and FIG. 7 to FIG. 10, in order to achieve the structure of the above sound network assembly, the manufacturing method of the sound network assembly of the present invention comprises the following steps: positioning: mesh having a mesh The body 10 is positioned on a plate 40, and the plate 40 is positioned on a jig 50 such that the mesh body 10 is located above the jig 50. The plate body 40 has at least one positioning hole 41 so that the plate body 40 can be fixed to the jig 50 through the positioning hole 41.

Molding: placing the jig 50 into a first mold base 51, using the first mold The seat 51 and the jig 50 fix the plate body 40, and then combine with a first die holder 52 by a second die holder 52 to form a forming space 53 for exposing the periphery of the mesh body 10 to the forming space 53. A seat body 30 having a channel tube wall 31 is formed in the forming space 53 by injection molding, so that the mesh body 10 is formed on the channel tube wall 31, and the mesh body 10 and the channel tube wall 31 are formed. An overlapping contact area is formed in which the channel tube wall 31 is partially embedded in the grid of the mesh body 10.

Demolding: After the seat body 10 is cooled and solidified, the seat body 10 is removed from between the first mold base 51 and the second mold base 52.

In the molding step, in addition to fixing the mesh body 10 to the first mold base 51, the conductor 20 is also fixed on the second mold base 52, and then the first mold base 51 and the second mold base 52 are further 52. The meshing body 10 and the conductor 20 are partially exposed in the forming space. After the body 30 is formed and formed, the conductor 20 and the mesh body 10 can be effectively fixed to the seat body 30.

In addition, when the conductor 20 is fixed on the second die holder 52, the T-shaped fixing piece 22 and the embedded piece 23 of the conductor 20 are also exposed in the forming space 53 between the first die holder 51 and the second die holder 52, thereby After the base body 30 is injection molded, the T-shaped fixing piece 22 and the embedded piece 23 on the conductor 20 are fixed inside the seat body 30 to prevent the conductor 20 from coming off the seat body 30.

Therefore, by using the above-described manufacturing method, in addition to effectively fixing the mesh body 10, the base body 30 can be integrally formed on the mesh body 10 in an injection manner, thereby not only increasing the mesh body 10 and the seat body 30. The structural strength between the channel walls 31 can also prevent the mesh body 10 from falling off the channel tube wall 31.

Furthermore, the height of the channel wall 31 can also be adjusted by the depth of the forming space 53. When the depth of the forming space 53 is shallow, the height of the channel tube wall 31 is lower; When the depth of the forming space 53 is deep, the height of the channel tube wall 31 after forming is high, and the effect of integrally forming the channel tube wall and the mesh body by injection molding can also effectively reduce the channel wall. The height, in turn, reaches the miniaturization requirements of the sound network assembly.

10‧‧‧ mesh

20‧‧‧Conductor

22‧‧‧T-type fixed piece

23‧‧‧ embedded film

30‧‧‧ body

31‧‧‧ channel wall

Claims (10)

A sound net assembly for a microspeaker, comprising: a mesh body having a mesh thereon; and a body body integrally formed on the mesh body by an injection method, wherein a channel wall is formed thereon. The mesh system is fixed on the wall of the channel tube, and an overlapping contact area is formed between the mesh body and the wall of the channel tube. In the contact area, the wall of the channel tube is partially embedded in the mesh body. Within the grid. The audio network assembly for a microspeaker according to claim 1, further comprising a conductor, the guiding system being embedded on the base, and the guiding system partially exposed to the base. A sound net assembly for a microspeaker according to claim 2, wherein the conductor is located at a position below a lower edge of the channel wall, and a through hole is formed. The sound net assembly for a microspeaker according to claim 3, wherein a plurality of T-shaped fixing pieces are protruded from a periphery of the perforation, and the T-shaped fixing pieces are embedded at a lower edge of the channel tube wall. The sound net assembly for a microspeaker according to claim 2, wherein a periphery of the conductor has an embedded piece, the embedded piece is located on a non-uniform plane with the conductor, and the embedded piece is embedded in the wire Inside the body. A method for manufacturing a sound network assembly for a microspeaker, comprising: positioning: positioning a mesh body having a mesh on a plate body. And positioning the plate body on a jig, the mesh body is located above the jig; molding: placing the jig in a first mold base, using the first mold base and the jig Fixing the plate body, and combining a second die holder with the first die holder to form a forming space, the mesh body is located in the forming space, and the injection molding side is utilized in the forming space Forming a seat body having a channel wall, the mesh body is formed on the channel tube wall, and the mesh body and the channel tube wall form an overlapping contact area in the contact area. The channel tube wall is partially embedded in the mesh of the mesh body; and demoulding: when the block body is cooled and solidified, the block body is removed from the first die holder and the second die holder. The method for manufacturing a sound network assembly for a microspeaker according to claim 6, wherein, in the molding, a conductor is further fixed in the second mold base, and when the seat body is injection molded, the guide system has Part of the exposure to the body. The method for manufacturing a sound net assembly for a microspeaker according to claim 7, wherein the conductor has a through hole, and when the first mold base is combined with the second mold base, the mesh body is located at the same One side of the perforation, and the channel tube wall extends from the perforation position in the direction of the mesh body. The method for manufacturing a sound net assembly for a microspeaker according to claim 8, wherein the through hole is further convexly provided with a plurality of T-shaped fixing pieces embedded on the channel tube wall away from the One side of the mesh. The method for manufacturing a sound network assembly for a microspeaker according to claim 7, wherein the periphery of the conductor further extends an embedded piece, the embedded piece is embedded in the base body and is located in a different plane from the conductor.