CN204741559U - Loudspeaker module group - Google Patents
Loudspeaker module group Download PDFInfo
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- CN204741559U CN204741559U CN201520439878.5U CN201520439878U CN204741559U CN 204741559 U CN204741559 U CN 204741559U CN 201520439878 U CN201520439878 U CN 201520439878U CN 204741559 U CN204741559 U CN 204741559U
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Abstract
The utility model discloses a loudspeaker module group, including the speaker monomer and accommodating the free module casing of speaker, the speaker monomer includes magnetic circuit subassembly and vibration subassembly, and the module casing includes polycarbonate plastic material layer and the elastomer materials layer that has the decrement, and polycarbonate plastic material layer constitutes the inlayer of module casing, and the at least part in elastomer materials layer combines in the outside of polycarbonate plastic material layer, constitutes the skin of module casing, polycarbonate plastic material layer and elastomer materials layer dijection injection moulding. The utility model discloses a loudspeaker module group can solve the impaired problem of rigid contact of module casing and other spare parts of complete machine effectively to outer structural change resonant frequency can be utilized, thereby the resonance phenomenon of module casing is effectively improved, the optimizing produte performance.
Description
Technical field
The utility model relates to electroacoustic field, is specifically related to a kind of loud speaker module.
Background technology
Loud speaker is a kind of can be the device of acoustic energy by electric energy conversion, it is widely used in the terminal electronics such as mobile phone, computer, PAD, it is the most basic phonation unit, the assembling of itself and electronic installation, usual needs combine the peripheral housing of collecting loudspeaker monomer, namely complete assembly with the form of loud speaker module and terminal electronics.At present, loud speaker module shell material adopts PC (Merlon) usually, or adopts in PC the glass fibre adding 20%, comes the intensity of enhancement mode assembly housing and resistant to elevated temperatures characteristic with this.
In the process of loud speaker module and the final assembly of the electronic equipment such as mobile phone, flat board, often there will be loud speaker module and the phenomenon that close-fitting even overfulfils the profit target appears in other parts of mobile phone, because PC material is comparatively hard, this very stiff and demanding assembling easily makes loud speaker module shell impaired and is out of shape; In addition, electronic product is constantly tending towards slimming, miniaturization, current mobile phone pursues limit Design in thickness, so gap reserved between parts is very little, there is certain tolerance in the size of each parts own, be easier to occur situation very close to each other between parts when assembling, such loud speaker module shell is easily impaired because receiving stress deformation, even affects the performance of loud speaker.
Disclosed in 5 days March in 2014, a patent No. is in the patent of invention of CN201310659401.3, its module casing is provided with the spring structure with module casing integrated injection molding, elastic component is incorporated into module casing and goes forward on the end face of the operatic tunes or rear operatic tunes openend, and this spring structure is preferably TPU (TPUE), TPE (thermoplastic elastomer (TPE)) or silica gel material, this kind of design effectively can ensure that module and terminal assemble the sealing between rear mold group phonate hole and mobile phone acoustic aperture, simultaneously due in conjunction with elastic component, also certain elasticity can be ensured, but the elastic component in the program is only incorporated on the end face of operatic tunes openend on module casing, solve the problem of phonate hole sealing targetedly, for the improvement that the impaired problem of contact when module casing and final assembly is too not large.Therefore, be necessary to improve further on this basis, to avoid above-mentioned defect.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of loud speaker module, improve the structure of module casing, can avoid and the impaired problem of module casing that occurs in final assembly process, improve covibration simultaneously.
To achieve these goals, the utility model by the following technical solutions: a kind of loud speaker module, comprises loudspeaker monomer and accommodate the module casing of described loudspeaker monomer; Described loudspeaker monomer comprises magnetic circuit assembly and vibration component, and wherein, described module casing comprises Merlon plastic material layer and has the layer of elastomer material of decrement; Described Merlon plastic material layer forms the internal layer of described module casing; Described layer of elastomer material is incorporated into the outside of described Merlon plastic material layer at least partly, forms the skin of described module casing; Described Merlon plastic material layer and described layer of elastomer material dijection injection mo(u)lding.
Improve as one, described module casing is the composite construction of described Merlon plastic material layer and described layer of elastomer material at least partly.
Improve as one, the module lower casing that described module casing comprises module upper casing and combines with described module upper casing; Described module upper casing and described module lower casing are all the composite construction by described Merlon plastic material layer and described layer of elastomer material dijection injection mo(u)lding.
Improve as one, described layer of elastomer material is TPUE or thermoplastic elastomer (TPE).
Improve as one, the skin of described module upper casing and the skin of described module lower casing are described Thermoplastic polyurethane elastomer material layer.
Improve as one, the skin of described module upper casing and the skin of described module lower casing are described thermoplastic elastic material layer.
Improve as one, the skin of described module upper casing is described Thermoplastic polyurethane elastomer material layer, and the skin of described module lower casing is described thermoplastic elastic material layer.
Improve as one, the skin of described module upper casing is described thermoplastic elastic material layer, and the skin of described module lower casing is described Thermoplastic polyurethane elastomer material layer.
Improve as one, the magnetic circuit assembly of described loudspeaker monomer comprises magnetic conductive board, is fixed on the magnet on described magnetic conductive board and is covered in the washer of described magnet surface; Described vibration component comprises vibrating diaphragm and to bond fixing voice coil loudspeaker voice coil with described vibrating diaphragm.
Improve as one, described loudspeaker monomer is electrically connected with the external circuit of described loud speaker module by FPCB plate; Described module casing is also provided with leak holes; The surface of described leak holes has been sticked damping.
Compared to existing technologies, loud speaker module of the present utility model, because module casing entirety is divided into double-layer structure, its inner employing conventional P C (Merlon) plastic cement, the effect supporting profile can be played, skin then adopts TPU, TPE etc. have the material of certain decrement, the skin of module casing is made to have certain elasticity, even if with the phenomenon occurring close-fitting in final assembly process or overfulfil the profit target, cladding material also can play the effect of buffering, reduce the damage to inner PC layer, thus effectively can solve the impaired problem of hard contact of module casing and other parts, on the other hand, due in the technical program, internal layer and the outer dijection Shooting Technique that adopts of module casing are shaping, layer structure can be utilized to change resonance frequency, thus effectively improve the covibration of module casing, moreover, loud speaker module of the present utility model, layer of elastomer material is incorporated into PC material layer at least partly, module casing can be incorporated into according to specific needs and have with complete machine parts the position contacted, thus flexibly, targetedly solve module casing with the impaired problem of contact in terminal assembly process.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model loud speaker modular structure;
Fig. 2 is the vertical view of the utility model loud speaker modular structure;
Fig. 3 is the cutaway view of Fig. 2 along A-A line;
Fig. 4 is the enlarged drawing of I part in Fig. 3;
Fig. 5 is the vertical view of single body construction for loudspeaker in the utility model loud speaker module;
Fig. 6 is the cutaway view of Fig. 5 along B-B line;
Reference numeral wherein comprises: 1, module upper casing, and 11, Merlon plastic material layer, 12, layer of elastomer material, 2, module lower casing, 21, Merlon plastic material layer, 22, layer of elastomer material, 3, loudspeaker monomer, 4, FPCB plate, 5, damping, 6, magnetic conductive board, 7, centring magnet, 8, center washer, 9, limit magnet, 10, limit washer, 11, voice coil loudspeaker voice coil, 12, vibrating diaphragm, 13, protecgulum, 14, shell.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
Embodiment:
Consult Fig. 1, Fig. 2, Fig. 5 and Fig. 6 jointly shown in, loud speaker module of the present utility model comprises module casing and is contained in the loudspeaker monomer 3 in module casing, loud speaker module shown in present embodiment, its module casing comprises module upper casing 1 and module lower casing 2, and module upper casing 1 and module lower casing 2 are combined together to form the cavity of accommodating loudspeaker monomer 3.
Loudspeaker monomer 3 is the most basic phonation units, it comprises magnetic circuit assembly and vibration component, wherein, magnetic circuit assembly comprises magnetic conductive board 6, is fixed on the centring magnet 7 on the surface of magnetic conductive board 6 and is covered in the center washer 8 on centring magnet 7 surface, periphery around centring magnet 7 is also provided with four blocks of limit magnet 9, correspondingly, the surface of every block limit magnet 9 is coated with limit washer 10 respectively; Vibration component comprises vibrating diaphragm 12 and to bond fixing voice coil loudspeaker voice coil 11 with vibrating diaphragm 12, generally, in order to improve the high frequency performance of speaker product, often in the upside in vibrating diaphragm 12 centre position or downside in conjunction with strengthening course structure.Above-mentioned magnetic circuit assembly and vibration component are contained in the cavity that protecgulum 13 and shell 14 formed jointly.Loudspeaker monomer 3 generally realizes being electrically connected with loud speaker module external circuit by electrical connector, in the present embodiment, electrical connector is FPCB plate (flexible circuit board) 4, FPCB plate 4 connects module external circuit, loudspeaker monomer 3 is connected with FPCB plate by shell fragment or pad structure, therefore, the current signal of external circuit is finally passed to voice coil loudspeaker voice coil 11 by above-mentioned electric connection structure, voice coil loudspeaker voice coil 11 does the motion of the reciprocating cutting magnetic line of force under the active force of electromagnetic field, thus drive the vibration of vibrating diaphragm 12, and then outwardly radiative acoustic wave, complete by electric energy to sound transformation of energy.Under normal circumstances, module casing also can be provided with the leak holes being communicated with external environment, leak holes is sticked damping 5.
Consult shown in Fig. 3 and Fig. 4, the loud speaker module of present embodiment, its module casing (module upper casing 1 and module lower casing 2) comprises Merlon plastic material layer (11 and 21) and has the layer of elastomer material (12 and 22) of decrement, can obviously see from diagram, Merlon plastic material layer 11 and 21 forms the internal layer of module upper casing 1 and module lower casing 2 respectively, the effect supporting profile can be played like this to module casing, layer of elastomer material 12 and 22 is then incorporated into the outside of Merlon plastic material layer (11 and 21), form the skin of module upper casing 1 and module lower casing 2 respectively, because elastomeric material itself has certain decrement, the skin of module casing is made to have certain elasticity, even if with the phenomenon occurring close-fitting in final assembly process or overfulfil the profit target, cladding material also can play the effect of buffering, reduce the damage to internal layer, thus effectively can solve the impaired problem of hard contact of module casing and other parts.
In present embodiment, Merlon plastic material layer (11 and 21) is one-body molded by dijection Shooting Technique with layer of elastomer material (12 and 22).During concrete enforcement, this technique comprises two steps: one is penetrate injection moulding inner layer material by one, i.e. Merlon plastic material layer (11 and 21), because this Material texture is comparatively hard, and can as the framework of outer layer forming material after it is shaping; Two is after inner layer material completes injection moulding, penetrates injection moulded elastomer material layer (12 and 22) by two, and this is because the material of elastomeric material is relatively softer, if support can not be easy to distortion.Like this, layer of elastomer material (12 and 22) and penetrates the Merlon plastic material layer (11 and 21) of injection mo(u)lding, and permeate body structure, respectively obtained module upper casing 1 and module lower casing 2.In present embodiment, internal layer and the outer dijection Shooting Technique that adopts of module casing are shaping, layer structure so just can be utilized to change resonance frequency, thus effectively improve the covibration of module casing.
It should be noted that, shown in present embodiment is a kind of module upper casing 1 with module lower casing 2 all by the example of Merlon plastic material layer (11 and 21) and layer of elastomer material (12 and 22) dijection injection mo(u)lding, but in the specific implementation, be not limited to this kind of mode, can according to real needs design flexibility body material and the position that Merlon plastic material is combined, generally speaking, for the technical program technical problem to be solved, module casing should be chosen and have with complete machine parts the position contacted, can reach the effect avoiding module casing impaired equally like this, that is, in the technical program, layer of elastomer material is incorporated into Merlon plastic material layer at least partly, module casing is the two composite construction at least partly.
It should be noted that in addition, loud speaker module shown in present embodiment, its module casing comprises the module upper casing 1 and module lower casing 2 two parts that combine, but the applicable of this programme is not limited to this kind of module, it is equally applicable to module casing and comprises upper casing, mesochite and lower casing three structure of partial shell, namely upper casing, mesochite, lower casing can be partly the composite construction of Merlon plastic material and elastomeric material, can entirety be also all the composite construction of above-mentioned bi-material; Moreover, loudspeaker monomer 3 shown in present embodiment, its magnetic circuit assembly is multipath magnetic circuit structure, but being suitable for of the technical program is equally also not limited thereto, loud speaker module for the loud speaker module of magnetic circuit assembly or the magnetic circuit assembly of two magnetic route structure (two blocks of limit magnet) that comprise single magnetic structure is applicable equally, that is, the structure of magnetic circuit does not affect the enforcement of the technical program.
Preferably, layer of elastomer material (12 and 22) is TPUE (TPU) or thermoplastic elastomer (TPE) (TPE), corresponds to module upper casing 1 and module lower casing 2, can have following four kinds of combinations:
A. the skin of module upper casing 1 and the skin of module lower casing 2 are Thermoplastic polyurethane elastomer material layer, that is, module casing is by inside and outside two-layer formation, and internal layer is Merlon plastic material layer, and skin is Thermoplastic polyurethane elastomer material layer.
B. the skin of module upper casing 1 and the skin of module lower casing 2 are thermoplastic elastic material layer, and that is, module casing is by inside and outside two-layer formation, and internal layer is Merlon plastic material layer, and skin is thermoplastic elastic material layer.
C. the skin of module upper casing 1 is Thermoplastic polyurethane elastomer material layer, and the skin of module lower casing 2 is thermoplastic elastic material layer, that is, module upper casing 1 is the composite construction by Merlon plastic material layer and Thermoplastic polyurethane elastomer material layer, and module lower casing 2 is then the composite construction by Merlon plastic material layer and thermoplastic elastic material layer.
D. the skin of module upper casing 1 is thermoplastic elastic material layer, and the skin of module lower casing 2 is Thermoplastic polyurethane elastomer material layer, that is, module upper casing 1 is the composite construction by Merlon plastic material layer and thermoplastic elastic material layer, and module lower casing 2 is then the composite construction by Merlon plastic material layer and Thermoplastic polyurethane elastomer material layer.
It should be noted that, layer of elastomer material (12 and 22) is not limited to above-mentioned bi-material, can also be that other have the material of similar characteristics, as long as itself have certain decrement, can ensure certain elasticity, and be convenient to injection moulding.
These are only the utility model case study on implementation, be not limited to the utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that the utility model institute disclosure is done, all should include in the protection range recorded in claims.
Claims (10)
1. a loud speaker module, comprises loudspeaker monomer and accommodates the module casing of described loudspeaker monomer; Described loudspeaker monomer comprises magnetic circuit assembly and vibration component, it is characterized in that: described module casing comprises Merlon plastic material layer and has the layer of elastomer material of decrement; Described Merlon plastic material layer forms the internal layer of described module casing; Described layer of elastomer material is incorporated into the outside of described Merlon plastic material layer at least partly, forms the skin of described module casing; Described Merlon plastic material layer and described layer of elastomer material dijection injection mo(u)lding.
2. loud speaker module according to claim 1, is characterized in that: described module casing is the composite construction of described Merlon plastic material layer and described layer of elastomer material at least partly.
3. loud speaker module according to claim 2, is characterized in that: the module lower casing that described module casing comprises module upper casing and combines with described module upper casing; Described module upper casing and described module lower casing are all the composite construction by described Merlon plastic material layer and described layer of elastomer material dijection injection mo(u)lding.
4. loud speaker module according to claim 3, is characterized in that: described layer of elastomer material is TPUE or thermoplastic elastomer (TPE).
5. loud speaker module according to claim 3, is characterized in that: the skin of described module upper casing and the skin of described module lower casing are described Thermoplastic polyurethane elastomer material layer.
6. loud speaker module according to claim 3, is characterized in that: the skin of described module upper casing and the skin of described module lower casing are described thermoplastic elastic material layer.
7. loud speaker module according to claim 3, is characterized in that: the skin of described module upper casing is described Thermoplastic polyurethane elastomer material layer, and the skin of described module lower casing is described thermoplastic elastic material layer.
8. loud speaker module according to claim 3, is characterized in that: the skin of described module upper casing is described thermoplastic elastic material layer, and the skin of described module lower casing is described Thermoplastic polyurethane elastomer material layer.
9. loud speaker module according to claim 1, is characterized in that: the magnetic circuit assembly of described loudspeaker monomer comprises magnetic conductive board, is fixed on the magnet on described magnetic conductive board and is covered in the washer of described magnet surface; Described vibration component comprises vibrating diaphragm and to bond fixing voice coil loudspeaker voice coil with described vibrating diaphragm.
10. loud speaker module according to claim 9, is characterized in that: described loudspeaker monomer is electrically connected with the external circuit of described loud speaker module by FPCB plate; Described module casing is also provided with leak holes; The surface of described leak holes has been sticked damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439878.5U CN204741559U (en) | 2015-06-24 | 2015-06-24 | Loudspeaker module group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439878.5U CN204741559U (en) | 2015-06-24 | 2015-06-24 | Loudspeaker module group |
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| CN204741559U true CN204741559U (en) | 2015-11-04 |
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| CN201520439878.5U Active CN204741559U (en) | 2015-06-24 | 2015-06-24 | Loudspeaker module group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980851A (en) * | 2015-06-24 | 2015-10-14 | 歌尔声学股份有限公司 | Loudspeaker module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980851A (en) * | 2015-06-24 | 2015-10-14 | 歌尔声学股份有限公司 | Loudspeaker module |
| WO2016206286A1 (en) * | 2015-06-24 | 2016-12-29 | 歌尔声学股份有限公司 | Loudspeaker module |
| US10433038B2 (en) | 2015-06-24 | 2019-10-01 | Goertek, Inc. | Loudspeaker module |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |