CN203301737U - Loudspeaker module - Google Patents

Loudspeaker module Download PDF

Info

Publication number
CN203301737U
CN203301737U CN2013203825312U CN201320382531U CN203301737U CN 203301737 U CN203301737 U CN 203301737U CN 2013203825312 U CN2013203825312 U CN 2013203825312U CN 201320382531 U CN201320382531 U CN 201320382531U CN 203301737 U CN203301737 U CN 203301737U
Authority
CN
China
Prior art keywords
magnetic conductive
conductive board
housing
shell
loud speaker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2013203825312U
Other languages
Chinese (zh)
Inventor
伍迪
王新
Original Assignee
Goertek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to CN2013203825312U priority Critical patent/CN203301737U/en
Application granted granted Critical
Publication of CN203301737U publication Critical patent/CN203301737U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a loudspeaker module which relates to the technical field of electroacoustic products. The loudspeaker module comprises a casing. A vibration system and a magnetic circuit system are accommodated in the casing. The magnetic circuit system comprises a magnetic conductive plate which is combined with the casing. The casing is provided with an opening. A part of the magnetic conductive plate is located in the opening and is exposed out of the casing to be flush with the surface of the casing. The other part of the magnetic conductive plate is located in the casing. The magnetic conductive plate is combined with the casing at the edge part of the opening. A sunken part is arranged at the part, which is combined with the casing, on the magnetic conductive plate. A glue accommodation groove of the sunken part is formed between the magnetic conductive plate and the casing. According to the loudspeaker module provided by the utility model, the technical problems of small loudspeaker module rear sound cavity and poor low frequency performance in the prior art are solved; the low frequency performance of the module is improved under the condition that the volume of the magnetic circuit system is not changed; and the optimal acoustic performance is acquired.

Description

The loud speaker module
Technical field
The utility model relates to the electro-acoustic product technical field, particularly a kind of integrated loud speaker module.
Background technology
Develop rapidly along with electronic industry, portable electric appts is easy to carry with it, complete function, can meet many-sided demand such as people's online, communication and amusement and be favourably welcome, and as the loud speaker module of the important acoustic element of electronic equipment, also is widely used.Existing loud speaker module mainly contains two kinds of structures: a kind of is to contain loudspeaker monomer in module shell, and loudspeaker monomer comprises shell, contains vibrational system and magnetic circuit system in shell; Another kind is to contain loudspeaker monomer in module shell, and itself does not have shell loudspeaker monomer, directly accommodates vibrational system and magnetic circuit system in module shell, i.e. integrated loud speaker module.
Integrated loud speaker module when the design acoustic element,, in order to obtain higher acoustical behavior, can expose shell with the magnetic conductive board in magnetic circuit system, and concordant with case surface.The structure of existing loud speaker module is as shown in Figure 7: whole magnetic conductive board 34d exposes shell, and the edge of magnetic conductive board 34d is provided with corresponding structure and is combined with body seal.The weak point of the loud speaker module of this kind structure is: magnetic conductive board 34d all exposes the design of shell, is that the volume that need to sacrifice certain rear operatic tunes 40d just can be achieved, thereby causes the low frequency performance of loud speaker module to reduce.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of loud speaker module, and this loud speaker module is in the situation that guaranteed that the magnetic circuit system constancy of volume has obtained low frequency sound effect preferably; And magnetic conductive board is combined with shell firmly, rear operatic tunes good airproof performance, and whole acoustical behavior is high.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of loud speaker module, comprise shell, contain vibrational system and magnetic circuit system in described shell, described magnetic circuit system comprises the magnetic conductive board that combines with described shell, described shell is provided with perforate, the part of described magnetic conductive board is positioned at described tapping, and the described magnetic conductive board that is positioned at described tapping exposes described shell and with described case surface, flushes, and another part of described magnetic conductive board is positioned at described enclosure; Described magnetic conductive board combines with the described shell at described verge of opening position, and the position that combines with described shell on described magnetic conductive board is provided with depression, and described depression is formed with glue groove between described magnetic conductive board and described shell.
Wherein, the described magnetic conductive board that is positioned at described enclosure is positioned at the rear operatic tunes of described loud speaker module, and the part of the described rear operatic tunes is positioned at the downside of described magnetic conductive board.
Wherein, described shell comprises the first housing, the second housing and the 3rd housing that is combined as a whole, and described the first housing and described the 3rd housing are incorporated into the two ends of described the second housing, and described perforate is positioned on described the 3rd housing.
As a kind of execution mode, one side of something of described magnetic conductive board is positioned at described tapping; The part of described depression has formed groove structure at the middle part of described magnetic conductive board, and another part of described depression has formed ledge structure at the edge part of described magnetic conductive board.
Wherein, described the 3rd housing of the ledge structure of corresponding described magnetic conductive board is provided with the chamfering plane.
As another kind of execution mode, the middle part of described magnetic conductive board is positioned at described tapping, and described depression forms the groove structure of ring-type on described magnetic conductive board.
Wherein, described the 3rd housing of the groove structure of corresponding described magnetic conductive board is provided with the clinoplain that extends to described groove structure.
After having adopted technique scheme, the beneficial effects of the utility model are:
Because the shell of the utility model loud speaker module is provided with perforate, the part of magnetic conductive board is positioned at tapping and exposes shell and flushes with case surface, and another part of magnetic conductive board is positioned at enclosure; The position that combines with shell on magnetic conductive board is provided with depression, and depression is formed with glue groove between magnetic conductive board and shell.The part of magnetic conductive board is exposed shell and is flushed (as shown in Figure 2) with shell, has increased to greatest extent the volume of magnetic circuit system, has obtained acoustical behavior preferably; Another part of magnetic conductive board is positioned at shell simultaneously, make the housing of shell to extend to the direction of magnetic conductive board, thereby enlarged the volume of the rear operatic tunes, the increase of rear operatic tunes volume, improved greatly the low frequency performance of loud speaker module, in the situation that guaranteed that the constancy of volume of magnetic circuit system has obtained low frequency sound effect preferably.And the position that combines with shell on magnetic conductive board is provided with depression, and depression is formed with glue groove between magnetic conductive board and shell.The setting of glue groove, increased the contact area of magnetic conductive board and shell and fluid sealant, thereby increased the bond strength between magnetic conductive board and shell, strengthened the sealing effectiveness of the rear operatic tunes, further promoted the acoustical behavior of loud speaker module.
In sum, it is little that the utility model loud speaker module has solved in prior art after the loud speaker module operatic tunes, the technical problem that low frequency performance is poor.The utility model loud speaker module has been in the situation that kept the magnetic circuit system constancy of volume to promote the low frequency performance of module, thereby obtained best acoustical behavior.
Description of drawings
Fig. 1 is the structural representation of the utility model loud speaker module embodiment one;
Fig. 2 is the A-A line cutaway view Amplified image of Fig. 1;
Fig. 3 is the B section enlarged drawing of Fig. 2;
Fig. 4 is the structural representation of the magnetic conductive board of the utility model loud speaker module embodiment one;
Fig. 5 is the structural representation of the magnetic conductive board of the utility model loud speaker module embodiment two;
Fig. 6 is the structural representation of the magnetic conductive board of the utility model loud speaker module embodiment three;
Fig. 7 is the structural representation of loud speaker module in prior art;
In figure: 10, the 3rd housing, 100, the chamfering plane, 102, clinoplain, the 12, second housing, 14, the first housing, 20, ball top, 22, vibrating diaphragm, 24, voice coil loudspeaker voice coil, 300, outer washer, 302, interior washer, 320, external magnet, 322, internal magnet, 34a, magnetic conductive board, 34b, magnetic conductive board, 34c, magnetic conductive board, 34d, magnetic conductive board, 340a, depression, 340b, depression, 340c, depression, 40a, the rear operatic tunes, 40d, the rear operatic tunes, 50, glue groove.
Embodiment
, below in conjunction with drawings and Examples, further set forth the utility model.
Embodiment one:
As shown in Fig. 1 and Fig. 2 were common, a kind of loud speaker module, comprised shell, and shell is combined into by the first housing 14, the second housing 12 and the 3rd housing 10, and the first housing 14 and the 3rd housing 10 are incorporated into respectively the two ends of the second housing 12.The first housing 14, the second housing 12 and the 3rd housing 10 surround the module inner chamber, contain vibrational system and magnetic circuit system in the module inner chamber.Magnetic circuit system comprises the magnetic conductive board 34a that combines with the 3rd housing 10, the 3rd housing 10 is provided with perforate, one side of magnetic conductive board 34a is positioned at tapping and exposes the 3rd housing 10, and the surface of magnetic conductive board 34a flushes with the outer surface of the 3rd housing 10, the another side of magnetic conductive board 34a is positioned at rear operatic tunes 40a, the part of rear operatic tunes 40a is positioned at the downside of magnetic conductive board 34a, and magnetic conductive board 34a combines with the 3rd housing 10 of the edge of perforate.This magnetic conductive board 34a partly exposes the 3rd housing 10, and part is positioned at the structure of rear operatic tunes 40a, in the situation that guaranteed that the constancy of volume of magnetic circuit system has obtained low frequency sound effect preferably.
As shown in Figure 2, be fixed with internal magnet 322 and external magnet 320 on magnetic conductive board 34a, external magnet 320 be surrounded on internal magnet 322 periphery and and internal magnet 322 between leave gap, be fixed with respectively interior washer 302 and outer washer 300 on internal magnet 322 and external magnet 320, internal magnet 322 forms internal magnetic circuit with interior washer 302, external magnet 320 and outer washer 300 form external magnetic circuit, leave magnetic gap between internal magnetic circuit and external magnetic circuit.Vibrational system comprises that edge part is fixed on the vibrating diaphragm 22 between the second housing 12 and the first housing 14, and the middle part of vibrating diaphragm 22 1 sides is provided with ball top 20, and vibrating diaphragm 22 opposite side secure bond have voice coil loudspeaker voice coil 24, and the end of voice coil loudspeaker voice coil 24 is positioned at magnetic gap.Voice coil loudspeaker voice coil 24, according to by sense of current and size, doing the operation of the reciprocating cutting magnetic line of force in magnetic gap, drives vibrating diaphragm 22 and produces vibration, thereby instigate air, sounds.
Shown in common as shown in Figure 1, Figure 3 and Figure 4, magnetic conductive board 34a is track type, combine with the verge of opening position of the 3rd housing 10, the upper position that combines with the 3rd housing 10 of magnetic conductive board 34a is provided with depression 340a, and depression 340a is formed with glue groove 50 between magnetic conductive board 34a and the 3rd housing 10.Glue groove 50 has increased the contact area of magnetic conductive board 34a and the 3rd housing 10 and fluid sealant, thereby increased the bond strength between magnetic conductive board 34a and the 3rd housing 10, strengthened rear operatic tunes 40a(as shown in Figure 2) sealing effectiveness, promoted the acoustical behavior of loud speaker module.
As shown in Figure 4, the part of depression 340a has formed groove structure at the middle part of magnetic conductive board 34a, and groove structure extends along the long axis direction of magnetic conductive board 34a, and another part of depression 340a has formed ledge structure at the edge part of magnetic conductive board 34a.
As shown in Figure 3, the 3rd housing 10 of the ledge structure of corresponding magnetic conductive board 34a is provided with chamfering plane 100, and the 3rd housing 10 of the groove structure of corresponding magnetic conductive board 34a is provided with the clinoplain 102 that extends to groove structure.The setting of chamfering plane 100 and clinoplain 102, further increased the volume of glue groove 50, also increased simultaneously the contact area of the 3rd housing 10 with fluid sealant, further strengthened the bond strength between magnetic conductive board 34a and the 3rd housing 10, strengthened rear operatic tunes 40a(as shown in Figure 2) sealing.
Embodiment two:
As shown in Figure 5, present embodiment and embodiment one are basic identical, and its difference is:
The part of depression 340b has formed groove structure at the middle part of magnetic conductive board 34b, and groove structure extends along the short-axis direction of magnetic conductive board 34b, and another part of depression 340b has formed ledge structure at the edge part of magnetic conductive board 34b.
Embodiment three:
As shown in Figure 6, present embodiment and embodiment one are basic identical, and its difference is:
The middle part of magnetic conductive board 34c is positioned at tapping and exposes the 3rd housing, and the edge of magnetic conductive board 34c is in the rear operatic tunes, and depression 340c forms the groove structure of ring-type on magnetic conductive board 34c.On the 3rd housing, the position of the groove structure of corresponding magnetic conductive board 34c is provided with the clinoplain that extends to groove structure, the setting of clinoplain, further increased the volume of glue groove, increased the contact area of the 3rd housing and fluid sealant, strengthen the bond strength between magnetic conductive board 34c and the 3rd housing, strengthened the sealing of the rear operatic tunes.
The name of the first housing in the utility model, the second housing and the 3rd housing is in order to distinguish technical characterictic, does not represent assembling sequence and job order between the three.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection range of the present utility model.

Claims (7)

1. loud speaker module, comprise shell, contain vibrational system and magnetic circuit system in described shell, described magnetic circuit system comprises the magnetic conductive board that combines with described shell, it is characterized in that, described shell is provided with perforate, and the part of described magnetic conductive board is positioned at described tapping, the described magnetic conductive board that is positioned at described tapping exposes described shell and with described case surface, flushes, and another part of described magnetic conductive board is positioned at described enclosure; Described magnetic conductive board combines with the described shell at described verge of opening position, and the position that combines with described shell on described magnetic conductive board is provided with depression, and described depression is formed with glue groove between described magnetic conductive board and described shell.
2. loud speaker module according to claim 1, is characterized in that, the described magnetic conductive board that is positioned at described enclosure is positioned at the rear operatic tunes of described loud speaker module, and the part of the described rear operatic tunes is positioned at the downside of described magnetic conductive board.
3. loud speaker module according to claim 2, it is characterized in that, described shell comprises the first housing, the second housing and the 3rd housing that is combined as a whole, and described the first housing and described the 3rd housing are incorporated into the two ends of described the second housing, and described perforate is positioned on described the 3rd housing.
4. loud speaker module according to claim 3, is characterized in that, one side of something of described magnetic conductive board is positioned at described tapping; The part of described depression has formed groove structure at the middle part of described magnetic conductive board, and another part of described depression has formed ledge structure at the edge part of described magnetic conductive board.
5. loud speaker module according to claim 4, is characterized in that, described the 3rd housing of the ledge structure of corresponding described magnetic conductive board is provided with the chamfering plane.
6. loud speaker module according to claim 3, is characterized in that, the middle part of described magnetic conductive board is positioned at described tapping, and described depression forms the groove structure of ring-type on described magnetic conductive board.
7. according to claim 4 or 6 described loud speaker modules, is characterized in that, described the 3rd housing of the groove structure of corresponding described magnetic conductive board is provided with the clinoplain that extends to described groove structure.
CN2013203825312U 2013-06-29 2013-06-29 Loudspeaker module Expired - Fee Related CN203301737U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203825312U CN203301737U (en) 2013-06-29 2013-06-29 Loudspeaker module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203825312U CN203301737U (en) 2013-06-29 2013-06-29 Loudspeaker module

Publications (1)

Publication Number Publication Date
CN203301737U true CN203301737U (en) 2013-11-20

Family

ID=49577713

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203825312U Expired - Fee Related CN203301737U (en) 2013-06-29 2013-06-29 Loudspeaker module

Country Status (1)

Country Link
CN (1) CN203301737U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109348374A (en) * 2018-10-26 2019-02-15 歌尔股份有限公司 A kind of loudspeaker
WO2019137192A1 (en) * 2018-01-10 2019-07-18 歌尔股份有限公司 Sound-emitting apparatus
CN111343549A (en) * 2020-03-05 2020-06-26 瑞声科技(新加坡)有限公司 Loudspeaker box

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019137192A1 (en) * 2018-01-10 2019-07-18 歌尔股份有限公司 Sound-emitting apparatus
US11178494B2 (en) 2018-01-10 2021-11-16 Goertek Inc. Sound generating device
CN109348374A (en) * 2018-10-26 2019-02-15 歌尔股份有限公司 A kind of loudspeaker
CN111343549A (en) * 2020-03-05 2020-06-26 瑞声科技(新加坡)有限公司 Loudspeaker box
CN111343549B (en) * 2020-03-05 2021-02-19 瑞声科技(新加坡)有限公司 Loudspeaker box

Similar Documents

Publication Publication Date Title
US10178467B2 (en) Thin speaker module with a front acoustic cavity
CN104540080A (en) Loudspeaker module
WO2017000504A1 (en) Miniature loudspeaker
CN204180267U (en) Loud speaker module
CN104168528A (en) Loudspeaker module
CN203661282U (en) Magnetic circuit system and loudspeaker provided with magnetic circuit system
CN204291372U (en) Microspeaker
CN203301737U (en) Loudspeaker module
CN104540076A (en) Loudspeaker module
CN202352325U (en) Novel piezoelectric buzzer
CN202841515U (en) Loudspeaker unit
CN104168527A (en) Miniature loudspeaker
CN203984670U (en) Microspeaker
CN203574851U (en) Loudspeaker module
CN203984667U (en) Microspeaker
CN202841501U (en) Speaker module
CN202799034U (en) Speaker module
CN203446021U (en) Loudspeaker module
CN101227767A (en) Minitype moving-coil type electro-acoustic conversing device
CN202949564U (en) Loudspeaker
CN203027479U (en) Piezoelectric speaker
CN203912190U (en) Mini loudspeaker
CN203301738U (en) Loudspeaker module
CN203301734U (en) Loudspeaker
CN203840527U (en) Loudspeaker module group

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

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.

C56 Change in the name or address of the patentee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131120

Termination date: 20200629

CF01 Termination of patent right due to non-payment of annual fee