CN206226710U - Loudspeaker module and mobile terminal - Google Patents

Abstract

The utility model provides a kind of loudspeaker module and mobile terminal, and the loudspeaker module includes upper shell, lower house, loudspeaker monomer, metal connecting sheet, circuit board.Wherein, sound cavity is provided with upper shell, circuit board is arranged on lower house, a groove for setting loudspeaker monomer is provided with circuit board, the position of the position diaphone cavity of groove, loudspeaker monomer includes voice coil loudspeaker voice coil tie point, voice coil loudspeaker voice coil tie point is located on the side wall of loudspeaker monomer, circuit board includes the Lu Tong areas being electrically connected with voice coil loudspeaker voice coil tie point, and Lu Tong areas are located on the side wall of groove, and loudspeaker monomer is electrically connected with circuit board by metal connecting sheet.Loudspeaker module of the present utility model and mobile terminal are laterally attached by the way that loudspeaker monomer and circuit board carried out so that sound cavity can obtain bigger space, so as to reduce low-frequency cut-off frequency, improve low frequency sound effect.

Description

Loudspeaker module and mobile terminal

Technical field

The utility model is related to loudspeaker field, more particularly to a kind of loudspeaker module and mobile terminal.

Background technology

Used as the conventional electro-acoustic transducer device for converting electrical energy into acoustic energy, it is very important in sound place system to loudspeaker Component.Loudspeaker includes sound chamber, and sound chamber can more fully play the performance of loudspeaker, moreover it is possible to sound is modified, is prevented Noise.

In recent years, as mobile terminal is to miniaturization, the development of slimming, the inner space of mobile terminal is less and less, Structure between each component is even more very compact.

But, in order to improve the sound effective value that of loudspeaker, all selections will go out acoustic aperture design in movement for many mobile terminal at present The side of terminal, and due to space limitation, the preceding sound chamber of loudspeaker (is formed equivalent to the sound cavity 112 in the utility model Inner chamber) space often very little, so as to the low-frequency cut-off frequency that result in loudspeaker is higher, the poor problem of low-frequency effect.

Therefore need to provide a kind of loudspeaker module and mobile terminal to solve above-mentioned technical problem.

Utility model content

The utility model provides a kind of loudspeaker module and mobile terminal, to solve loudspeaker module of the prior art The poor problem of low frequency audio that preceding sound cavity space is too small and triggers.

In order to solve the above technical problems, the technical solution of the utility model is：A kind of loudspeaker module, it includes upper casing Body, lower house, loudspeaker monomer, metal connecting sheet, circuit board；

Wherein, sound cavity is included on the upper shell, the circuit board is arranged on the lower house, on the circuit board Including a groove for being used to set the loudspeaker monomer, the position of the position correspondence sound cavity of the groove is described Loudspeaker monomer includes voice coil loudspeaker voice coil tie point, and the voice coil loudspeaker voice coil tie point is located on the side wall of the loudspeaker monomer, the circuit board Including the Lu Tong areas being electrically connected with the voice coil loudspeaker voice coil tie point, the Lu Tong areas are located on the side wall of the groove, described to raise one's voice Device monomer is electrically connected with the circuit board by the metal connecting sheet.

In the utility model, the metal connecting sheet includes the first connection end, the second connection end and conductive sections, described the One connection end is fixedly connected with the voice coil loudspeaker voice coil tie point, and second connection end and conductive sections are set in a set angle, in institute State and be provided with connecting hole on the second connection end, corresponding connecting pole is provided with the Lu Tong areas of the circuit board.

Further, the conductive sections of the metal connecting sheet be arc conductive sections, the Lu Tong areas be two at, it is described at two Lu Tong areas are located on two relative side walls of the groove respectively, and the loudspeaker monomer is by metal connecting sheet described in two panels point It is not connected with the Lu Tong areas at two.

In the utility model, the sound cavity is provided with one and is raised one's voice with described towards the side of the loudspeaker monomer The opening of device monomer connection, the edge of the opening is provided with oblique angle, and the inwall of the sound cavity is round and smooth cambered surface.

Further, the loudspeaker monomer is more than the bore of the opening towards the area of the opening side, described Seal is provided between loudspeaker monomer and the opening.

Further, in the sound cavity towards being additionally provided with one in the one side of the loudspeaker monomer for described Loudspeaker monomer is fixed spacing fixed frame.

In the utility model, the sound cavity also includes the multiple outlet sound mouths for connecting the external world, the outlet sound mouth position In the sound cavity on the side wall of the circuit board, the edge of the outlet sound mouth is provided with fillet.

In the utility model, leak is additionally provided with the upper shell, in the upper shell towards the lower casing The damping sheet corresponding with the leak is provided with the one side of body, the damping sheet is solid with the upper shell by connecting pole Fixed connection.

In the utility model, the side of the lower house four is extension board, and four sides of the upper shell are provided with prolongs with described Stretch the locating slot that plate is engaged.

The utility model also includes a kind of mobile terminal using any of the above-described loudspeaker module.

The utility model is compared to prior art, its advantage：Loudspeaker module of the present utility model and mobile terminal By opening up groove on circuit boards, loudspeaker monomer is arranged in the groove, loudspeaker monomer and circuit board are carried out laterally Connection, so that the sound cavity above loudspeaker can obtain bigger space, the sound cavity of greater room can reduce low-frequency cutoff Frequency, improves low frequency sound effect.

Brief description of the drawings

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below in embodiment The required accompanying drawing for using is briefly described, and drawings in the following description are only corresponding section Example of the present utility model Accompanying drawing.

Fig. 1 is the schematic cross-section of loudspeaker module of the present utility model.

Fig. 2 is the loudspeaker monomer of loudspeaker module of the present utility model and the structural representation of lower house.

Fig. 3 is the structural representation of the upper shell of loudspeaker module of the present utility model.

Fig. 4 is the structural representation of the metal connecting sheet of loudspeaker module of the present utility model.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those skilled in the art are obtained under the premise of creative work is not made The every other embodiment for obtaining, belongs to the scope of the utility model protection.

The mobile terminal device being thinned currently on the market is more favored by consumer, and this allows for mobile terminal device Structure need compacter, there is no unnecessary space, and at the same time, the mobile terminal device for laterally going out sound also allows the user to have More preferable audio experience, but laterally go out the space often very little in the preceding sound chamber of the loudspeaker of sound, so as to result in the low of loudspeaker Frequency cut-off frequency is higher, the poor problem of low-frequency effect.

A kind of preferred embodiment of loudspeaker module that can solve above technical problem of the utility model offer is provided.

Fig. 1, Fig. 2 and Fig. 3 are refer to, wherein Fig. 1 is the schematic cross-section of loudspeaker module of the present utility model, and Fig. 2 is The loudspeaker monomer of loudspeaker module of the present utility model and the structural representation of lower house, Fig. 3 raise one's voice for of the present utility model The structural representation of the upper shell of device module.

In figure, the similar unit of structure is represented with identical label.

The preferred embodiment of loudspeaker module that the utility model is provided is：A kind of loudspeaker module, it includes upper shell 11st, lower house 12, loudspeaker monomer 13, metal connecting sheet 18, circuit board 14；

Wherein, sound cavity 112 is included on upper shell 11, circuit board 14 is arranged on lower house 12, includes on circuit board 14 One is used to setting the groove 141 of loudspeaker monomer 13, the position of the position diaphone cavity 112 of groove 141；

Loudspeaker monomer 13 includes voice coil loudspeaker voice coil tie point, and voice coil loudspeaker voice coil tie point is located on the side wall of loudspeaker monomer 13, circuit board 14 include with voice coil loudspeaker voice coil tie point be electrically connected with Lu Tong areas, Lu Tong areas be located at groove 141 side wall on, loudspeaker monomer 13 with electricity Road plate 14 is electrically connected with by metal connecting sheet 18.

Fig. 4 is refer to, wherein Fig. 4 is the structural representation of the metal connecting sheet of loudspeaker module of the present utility model.

In the preferred embodiment, metal connecting sheet 18 includes the first connection end 181, the second connection end 182 and conductive sections 183, the first connection end 181 is fixedly connected with voice coil loudspeaker voice coil tie point, and the second connection end 182 and conductive sections 183 set in a set angle Put, connecting hole 1821 is provided with the second connection end 182, corresponding connecting pole is provided with the Lu Tong areas of circuit board 14 142。

Wherein, the set angle sets according to connecting hole 1821 relative to the relative position of connecting pole 142, to be conducive to What metal connecting sheet 18 was connected to Lu Tong areas stabilizes to principle.

In addition, the conductive sections 183 of metal connecting sheet 18 are arc conductive sections, be conducive to the bending of metal connecting sheet, make company Connecing hole 1821 can preferably be connected with connecting pole 142.

Lu Tong areas are that at two, Liang Chulutong areas are located on two relative side walls of groove 141 respectively, and loudspeaker monomer 13 leads to Two panels metal connecting sheet 18 is crossed to be connected with Liang Chulutong areas respectively.

The side of loudspeaker monomer 13 is provided with an opening being connected with loudspeaker monomer 13 in sound cavity 112 1123, the edge of opening 1123 is provided with oblique angle, and the inwall of sound cavity 112 is round and smooth cambered surface, so in sound transmission process In, sound loss is small, and is conducive to the reflection of sound.

Meanwhile, loudspeaker monomer 13 is conducive to loudspeaker list towards the bore of the area more than opening 1123 of opening side Seal 17 is set between body 13 and opening 1123, it is to avoid (sound chamber is upper shell 11 and lower house 12 afterwards for preceding sound chamber and rear sound chamber Between formed inner chamber) between acoustic short circuit.

And in sound cavity 112 towards being additionally provided with one in the one side of loudspeaker monomer 13 for loudspeaker monomer 13 Spacing fixed frame 1122 is fixed, the structural stability of loudspeaker module can be improved.

Sound cavity 112 also includes the multiple outlet sound mouths 1121 for connecting the external world, and outlet sound mouth 1121 hangs down positioned at sound cavity 112 Directly on the side wall of circuit board 14, the edge of outlet sound mouth 1121 is provided with fillet, to reduce the loss of sound.

In addition, leak 111 is additionally provided with upper shell 11, in upper shell 11 towards setting in the one side of lower house 12 There is the damping sheet 15 corresponding with leak 111, damping sheet 15 is fixedly connected by connecting pole 16 with upper shell 11.

The effect of leak 111 is the inner and outer air pressure in sound chamber after balance, prevents the vibrating diaphragm of loudspeaker monomer 13 because of front and rear gas Pressure does not cause etc. vibrating diaphragm bulging or recessed contracting, the i.e. leak to make the sky in rear sound chamber in the case of the change of environment temperature Can effectively be discharged after gas expansion, or make the entrance of outside air after contraction, loudspeaker sounding is not interfered with thus.

Damping sheet 15 can increase the acoustic resistance of leak, so as to reduce the influence that leak brings to acoustical behavior.

In the preferred embodiment, the side of lower house 12 4 is extension board, and four sides of upper shell 11 are provided with and extension board phase The locating slot 113 of cooperation, makes more rapidly can easily be fitted together between lower house 12 and upper shell 11, also makes between them There is more stable annexation.

The utility model also includes a kind of mobile terminal using above-mentioned loudspeaker module, it is preferred that the mobile terminal can Think the electronic products such as mobile phone, panel computer and notebook computer.

Operation principle of the present utility model：Loudspeaker monomer 13 is arranged in the groove 141 of circuit board 14, while loudspeaker Monomer 13 is electrically connected with by metal connecting sheet 18 with circuit board, and is the lateral and groove 141 in loudspeaker monomer 13 Side wall is attached；

Loudspeaker monomer 13 is outwardly spread out of to the sounding of sound cavity 112 by the lateral acoustic aperture 1121 that goes out, and is existed in addition Seal 17 is set between loudspeaker monomer 13 and opening 1123, the acoustic short circuit between preceding sound chamber and rear sound chamber can be prevented.

By opening up groove on circuit boards, loudspeaker monomer is arranged on into this leads to the loudspeaker module of this preferred embodiment In groove, loudspeaker monomer and circuit board carry out it is laterally attached so that the sound cavity above loudspeaker can obtain bigger space, The sound cavity of greater room can reduce low-frequency cut-off frequency, improve low frequency sound effect.

In sum, although the utility model is disclosed above with preferred embodiment, but above preferred embodiment is not used To limit the utility model, one of ordinary skill in the art is not departing from spirit and scope of the present utility model, can make Various changes are defined with retouching, therefore protection domain of the present utility model by the scope that claim is defined.

Claims (10)

1. a kind of loudspeaker module, it is characterised in that the loudspeaker module includes upper shell, lower house, loudspeaker monomer, gold Category connection sheet, circuit board；

Wherein, sound cavity is included on the upper shell, the circuit board is arranged on the lower house, includes on the circuit board One groove for being used to set the loudspeaker monomer, the position of the position correspondence sound cavity of the groove is described to raise one's voice Device monomer includes voice coil loudspeaker voice coil tie point, and the voice coil loudspeaker voice coil tie point is located on the side wall of the loudspeaker monomer, and the circuit board includes The Lu Tong areas being electrically connected with the voice coil loudspeaker voice coil tie point, the Lu Tong areas are located on the side wall of the groove, the loudspeaker list Body is electrically connected with the circuit board by the metal connecting sheet.

2. loudspeaker module according to claim 1, it is characterised in that the metal connecting sheet include the first connection end, Second connection end and conductive sections, first connection end are fixedly connected with the voice coil loudspeaker voice coil tie point, second connection end and biography The setting of Duan Chengyi set angles is led, connecting hole is provided with second connection end, set in the Lu Tong areas of the circuit board It is equipped with corresponding connecting pole.

3. loudspeaker module according to claim 2, it is characterised in that the conductive sections of the metal connecting sheet are that arc is passed Section is led, the Lu Tong areas are that at two, the Lu Tong areas are located on two relative side walls of the groove respectively at two, described to raise one's voice Device monomer is connected with the Lu Tong areas at two respectively by metal connecting sheet described in two panels.

4. loudspeaker module according to claim 1, it is characterised in that the sound cavity is towards the loudspeaker monomer Side is provided with an opening being connected with the loudspeaker monomer, and the edge of the opening is provided with oblique angle, the sound cavity Inwall be round and smooth cambered surface.

5. loudspeaker module according to claim 4, it is characterised in that the loudspeaker monomer is towards the opening side Area more than the opening bore, be provided with seal between the loudspeaker monomer and the opening.

6. loudspeaker module according to claim 5, it is characterised in that in the sound cavity towards the loudspeaker monomer One side on be additionally provided with one for being fixed spacing fixed frame to the loudspeaker monomer.

7. loudspeaker module according to claim 1, it is characterised in that the sound cavity is also included for connecting the external world Multiple outlet sound mouths, the outlet sound mouth be located at the sound cavity on the side wall of the circuit board, the edge of the outlet sound mouth It is provided with fillet.

8. loudspeaker module according to claim 1, it is characterised in that be additionally provided with leak on the upper shell, In the upper shell towards being provided with the damping sheet corresponding with the leak, the damping sheet in the one side of the lower house It is fixedly connected with the upper shell by connecting pole.

9. loudspeaker module according to claim 1, it is characterised in that the side of the lower house four is extension board, it is described on Four sides of housing are provided with the locating slot being engaged with the extension board.

10. in a kind of use the claims 1 to 9 any one loudspeaker module mobile terminal, it is characterised in that it is described Loudspeaker module includes upper shell, lower house, loudspeaker monomer, metal connecting sheet, circuit board；

Wherein, sound cavity is included on the upper shell, the circuit board is arranged on the lower house, includes on the circuit board One groove for being used to set the loudspeaker monomer, the position of the position correspondence sound cavity of the groove is described to raise one's voice Device monomer includes voice coil loudspeaker voice coil tie point, and the voice coil loudspeaker voice coil tie point is located on the side wall of the loudspeaker monomer, and the circuit board includes The Lu Tong areas being electrically connected with the voice coil loudspeaker voice coil tie point, the Lu Tong areas are located on the side wall of the groove, the loudspeaker list Body is electrically connected with the circuit board by the metal connecting sheet.