CN219248051U - Horn - Google Patents

Abstract

The utility model discloses a loudspeaker, which comprises a protecting cover, a diaphragm, a voice coil, a washer, a magnet and a loudspeaker bracket; the loudspeaker comprises a loudspeaker support, a diaphragm, a voice coil, a magnet, a Hua Sidie and a loudspeaker sound outlet, wherein the diaphragm is covered on the upper end face of the loudspeaker support, the protecting cover is covered outside the diaphragm and limited by the upper end face of the loudspeaker support, the loudspeaker support is provided with an accommodating space, the voice coil is arranged on the diaphragm and extends into the accommodating space, the magnet is arranged in the accommodating space, the Hua Sidie is arranged on the magnet, the periphery side of the loudspeaker support is provided with the sound outlet, the sound outlet is communicated in the accommodating space, and the sound outlet is formed by the protecting cover, the diaphragm, the voice coil, the washer, the magnet and the structural design of the loudspeaker support, the interference of internal parts of the earphone to the rear cavity hole of the loudspeaker is reduced through the adjustment of the position of the sound outlet, the consistency of the ventilation quantity of the rear cavity of the loudspeaker is better ensured, and the quality of a final loudspeaker frequency response curve is more ensured; and the influence of the inside of the earphone on the ventilation quantity of the vent hole of the rear cavity of the loudspeaker is not needed to be considered too much.

Description

Horn

Technical Field

The utility model relates to the technology in the field of loudspeakers, in particular to a loudspeaker.

Background

At present, with the rapid development of the earphone industry, the requirements of consumers on earphones are higher and higher, and especially the TWS earphone market of relatively fire explosion, miniaturization and multifunction become mainstream. As shown in fig. 5, the TWS earphone in the conventional art adopts a middle hole structure, and includes a support, a membrane, a washer, a magnet, a voice coil, a PCB and the like, wherein the support has a sound outlet hole, through holes for communicating the sound outlet hole are formed in the washer and the magnet, and the support has a tuning effect by adopting the middle hole structure and attaching a back adhesive mesh cloth, wherein the middle hole structure is beneficial to miniaturization of the loudspeaker and can save limited space in the earphone, so that the loudspeaker is most widely used at present.

But TWS earphone cavity internal parts are more, like PCBA, battery, MIC, wire rod etc. cause the interference to the back cavity hole of loudspeaker easily during the equipment, there is great drawback: particularly, in the process assembly, the back cavity hole of the loudspeaker is easily blocked or influenced by other devices, so that the ventilation quantity is changed, and the problems of bad frequency response curve and inadaptation of hearing feel of the earphone are caused. Therefore, the design is influenced by the earphone cavity in the early stage, so that a plurality of restrictions are imposed on the ID design and the structure stacking, and fool-proof measures for horn interference are considered in the process, namely, when the horn is in welding operation with an earphone wire or an FPC, because the welding point of the PCB of the horn is relatively close to the mesh cloth, the mesh cloth is easily scalded or pressed in the operation, the ventilation is influenced, and the bad horn frequency response curve is caused. It can be seen that the horn structure of the existing TWS earphone has both early design difficulties and technical difficulties. Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide a loudspeaker, which utilizes the structural design of a protecting cover, a diaphragm, a voice coil, a washer, a magnet and a loudspeaker support, and utilizes the peripheral side of the loudspeaker support to be provided with a sound outlet hole, wherein the sound outlet hole is communicated in a containing space, and interference of an internal part of an earphone to a rear cavity hole of the loudspeaker is reduced through adjustment of the position of the sound outlet hole, so that consistency of ventilation volume of the rear cavity of the loudspeaker is better ensured, and quality of a final loudspeaker frequency response curve is more ensured; and can effectively avoid loudspeaker and earphone cord or FPC welding operation time, scald or press the screen cloth in the operation easily, influence the ventilation volume, cause the bad problem of loudspeaker frequency response curve, so, reduce the restriction to ID design and structure stack when earlier stage design, simultaneously for processing technology becomes simple.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a loudspeaker comprises a protecting cover, a diaphragm, a voice coil, a washer, a magnet and a loudspeaker bracket; the diaphragm covers in the up end of loudspeaker support, the protecting cover cladding is outside the diaphragm and is limited by the up end of loudspeaker support, loudspeaker support has the accommodation space, the voice coil loudspeaker voice coil is installed on the diaphragm and is extended to in the accommodation space, magnet installs in the accommodation space, hua Sidie locates on the magnet, loudspeaker support's periphery side is provided with the sound hole, the sound hole communicates in the accommodation space.

As a preferable scheme, the peripheral side of the loudspeaker bracket is attached with a back adhesive mesh cloth corresponding to the sound outlet hole, and the back adhesive mesh cloth with the matched size is attached to adjust the ventilation quantity.

As a preferable scheme, the sound outlet holes are arranged at intervals on the outer periphery side of the loudspeaker bracket, so that the sound area is increased.

As a preferable scheme, the sound outlet is round, elliptical or key.

As a preferable scheme, the upper part of the loudspeaker bracket is concavely provided with a diaphragm mounting position, the diaphragm is arranged in the diaphragm mounting position, and the diaphragm mounting position is designed to ensure stable diaphragm mounting.

As a preferable scheme, the upper end face circumference side of the loudspeaker support is provided with a horizontal annular edge, the circumference side of the protecting cover is provided with a bending cover edge, the bending cover edge is provided with a transverse annular part and a vertical annular part integrally connected with the outer periphery of the transverse annular part, and the transverse annular part is pressed on the horizontal annular edge of the loudspeaker support.

As a preferable scheme, the protecting cover is provided with a plurality of through holes which are communicated with the upper side and the lower side of the protecting cover, and the through holes are communicated in the accommodating space, so that sound transmission is facilitated.

As a preferable scheme, the loudspeaker further comprises a PCB (printed circuit board) which is positioned on the lower end face of the loudspeaker bracket.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal is that the utility model mainly adopts the structural design of a protecting cover, a diaphragm, a voice coil, a washer, a magnet and a loudspeaker bracket, wherein the loudspeaker bracket is provided with a containing space, the periphery side of the loudspeaker bracket is provided with a sound outlet hole, the sound outlet hole is communicated in the containing space, the interference of the inner part of the earphone to the back cavity hole of the loudspeaker is reduced through the adjustment of the position of the sound outlet hole, the consistency of the ventilation volume of the back cavity of the loudspeaker is better ensured, and the quality of the final loudspeaker frequency response curve is more ensured; and the influence of the inside of the earphone on the ventilation quantity of the vent hole of the rear cavity of the loudspeaker is not needed to be considered too much; and can effectively avoid loudspeaker and earphone cord or FPC welding operation time, scald or press the screen cloth in the operation easily, influence the ventilation volume, cause the bad problem of loudspeaker frequency response curve. Thus, restrictions on ID design and structure stacking are reduced in the early design, and meanwhile, the processing technology is simplified.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

FIG. 3 is an exploded view of an embodiment of the present utility model;

FIG. 4 is a schematic view of a horn bracket according to an embodiment of the present utility model;

fig. 5 is a sectional view of a conventional TWS earphone using a mesoporous structure.

The attached drawings are used for identifying and describing:

10. cover 11, through hole

12. Bending hood edge 13, transverse annular portion

14. Vertical annular part

20. Diaphragm 30, voice coil

40. Washer 50, magnet

60. Horn bracket 61 and accommodation space

62. Sound outlet 63 and back adhesive net cloth

64. Diaphragm mounting location 65, horizontal annular edge

70. And a PCB board.

Detailed Description

Referring to fig. 1 to 5, specific structures of embodiments of the present utility model are shown.

In the description of the present utility model, it should be noted that, for the azimuth words, terms such as "upper", "lower", "front", "rear", "left", "right", etc., indicate azimuth and positional relationships as shown based on the drawings or when worn normally, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the device or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

A loudspeaker comprises a protecting cover 10, a diaphragm 20, a voice coil 30, a washer 40, a magnet 50, a loudspeaker bracket 60 and a PCB 70.

The membrane covers the upper end face of the speaker bracket 60, the protecting cover 10 covers the membrane 20 and is limited on the upper end face of the speaker bracket 60, the speaker bracket 60 has a containing space 61, preferably, the protecting cover 10 has a plurality of through holes 11 penetrating through the upper and lower sides of the protecting cover 10, and the through holes 11 are communicated in the containing space 61, which is more beneficial to sound transmission. The diaphragm mounting position 64 is concavely arranged above the horn bracket 60, the diaphragm 20 is arranged in the diaphragm mounting position 64, and the diaphragm mounting position 64 ensures stable mounting of the diaphragm 20.

The upper end face circumference side of the horn support 60 is provided with a horizontal annular edge 65, the circumference side of the protecting cover 10 is provided with a bending cover edge 12, the bending cover edge 12 is provided with a transverse annular part 13 and a vertical annular part 14 integrally connected with the outer circumference of the transverse annular part 13, and the transverse annular part 13 is pressed on the horizontal annular edge 65 of the horn support 60.

The voice coil 30 is mounted on the diaphragm 20 and extends into the accommodating space 61, the magnet 50 is mounted in the accommodating space 61, the washer 40 is stacked on the magnet 50, the outer peripheral side of the speaker bracket 60 is provided with a sound outlet hole 62, the sound outlet hole 62 is communicated in the accommodating space 61, preferably, a back adhesive mesh 63 is attached to the outer peripheral side of the speaker bracket 60 corresponding to the sound outlet hole 62, and a back adhesive mesh 63 of a matched size is attached to adjust the ventilation amount. Preferably, the sound outlet holes 62 are arranged at intervals on the outer peripheral side of the horn bracket 60, and the number or size of the holes can be increased according to actual needs, thereby increasing the sound area. Preferably, if the ventilation is insufficient, the sound outlet 62 may be changed to a circular or elliptical shape or a key shape. Wherein, the magnet 50, the magnetic conductive material and the magnetic gap of the loudspeaker form a magnetic loop, so many gaps are formed among the mesh fabric fibers, which can be equivalent to many capillaries, the air is blocked and absorbed in different degrees when passing through, and the air permeability can be changed by changing the density and the area. The coupling of adjacent space air changes its damping through changing the ventilation volume between them, realizes the absorption to the sound energy in order to influence the vibration of loudspeaker diaphragm to influence the frequency response of loudspeaker, play the effect of tuning.

The horn also comprises a PCB 70, wherein the PCB 70 is positioned on the lower end surface of the horn bracket 60.

The design of the utility model is mainly characterized in that the loudspeaker bracket is provided with a containing space through the structural design of a protecting cover, a diaphragm, a voice coil, a washer, a magnet and a loudspeaker bracket, the periphery side of the loudspeaker bracket is provided with a sound outlet hole, the sound outlet hole is communicated in the containing space, the interference of the inner part of the earphone to the rear cavity hole of the loudspeaker is reduced through the adjustment of the position of the sound outlet hole, the consistency of the ventilation quantity of the rear cavity of the loudspeaker is better ensured, and the quality of a final loudspeaker frequency response curve is better ensured; and the influence of the inside of the earphone on the ventilation quantity of the vent hole of the rear cavity of the loudspeaker is not needed to be considered too much; and can effectively avoid loudspeaker and earphone cord or FPC welding operation time, scald or press the screen cloth in the operation easily, influence the ventilation volume, cause the bad problem of loudspeaker frequency response curve. Thus, restrictions on ID design and structure stacking are reduced in the early design, and meanwhile, the processing technology is simplified.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims (8)

1. A loudspeaker comprises a protecting cover, a diaphragm, a voice coil, a washer, a magnet and a loudspeaker bracket; the method is characterized in that: the diaphragm covers in the up end of loudspeaker support, the protecting cover cladding is outside the diaphragm and is limited by the up end of loudspeaker support, loudspeaker support has the accommodation space, the voice coil loudspeaker voice coil is installed on the diaphragm and is extended to in the accommodation space, magnet installs in the accommodation space, hua Sidie locates on the magnet, loudspeaker support's periphery side is provided with the sound hole, the sound hole communicates in the accommodation space.

2. A horn according to claim 1, the method is characterized in that: and a back adhesive mesh cloth is attached to the peripheral side of the horn bracket corresponding to the sound outlet hole.

3. A horn according to claim 1, characterized in that: the sound outlet holes are arranged at intervals on the outer periphery side of the loudspeaker support.

4. A horn according to claim 1, characterized in that: the sound outlet holes are round, elliptic or key-type.

5. A horn according to claim 1, characterized in that: the upper part of the loudspeaker bracket is concavely provided with a diaphragm mounting position, and the diaphragm is arranged in the diaphragm mounting position.

6. A horn according to claim 4, wherein: the upper end face periphery side of loudspeaker support has horizontal annular limit, the week side of protecting cover has the cover limit of buckling, the cover limit of buckling has horizontal annular portion and an organic whole to connect in the vertical annular portion of the outer periphery of horizontal annular portion, horizontal annular portion presses the horizontal annular edge of locating loudspeaker support.

7. A horn according to claim 5, wherein: the protecting cover is provided with a plurality of through holes which are communicated with the upper side and the lower side of the protecting cover, and the through holes are communicated in the accommodating space.

8. A horn according to claim 1, characterized in that: the loudspeaker also comprises a PCB (printed circuit board) which is positioned on the lower end face of the loudspeaker bracket.

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