CN112468911A - Loudspeaker box and assembling process thereof - Google Patents
Loudspeaker box and assembling process thereof Download PDFInfo
- Publication number
- CN112468911A CN112468911A CN202011507873.3A CN202011507873A CN112468911A CN 112468911 A CN112468911 A CN 112468911A CN 202011507873 A CN202011507873 A CN 202011507873A CN 112468911 A CN112468911 A CN 112468911A
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- China
- Prior art keywords
- wall
- sound
- piece
- supporting
- rear cover
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- 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.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
Abstract
The invention provides a loudspeaker box, which comprises a shell and a sound generating monomer with a vibrating diaphragm, wherein the sound generating monomer is accommodated in the shell, the shell comprises a front cover and a rear cover covering the front cover, the front cover comprises a supporting piece for supporting one side of the sound generating monomer with the vibrating diaphragm, a sound guide channel which is in injection molding fixed connection with the supporting piece and a connecting piece which is fixedly connected with the supporting piece and the rear cover, the supporting piece comprises a bottom wall which is opposite to the vibrating diaphragm and is arranged at intervals, a supporting wall which is bent and extended from the bottom wall to the direction close to the sound generating monomer and supports the sound generating monomer and a blocking wall which is extended from the supporting wall to the direction of the rear, the back lid support piece and the connecting piece are made by metal material, and the sound production monomer encloses into the ante-chamber jointly with support piece and connecting piece, leads the sound passageway with ante-chamber and external intercommunication, sound production monomer, protecgulum and back lid form airtight back chamber jointly. The loudspeaker box is provided with the metal connecting piece and the rear cover, and the supporting piece and the sound guide channel are additionally arranged, so that the rear cavity is maximized, and the acoustic performance is improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of electroacoustic conversion, in particular to a loudspeaker box and an assembly process thereof.
[ background of the invention ]
With the rapid development of mobile communication technology in recent years, consumers increasingly use mobile communication devices with voice functions, such as: portable telephones, handheld game devices, portable computers, and the like. The speaker box is used as a voice playing device, and the design of the speaker box directly influences the voice performance of the mobile communication equipment product in the related technology. In order to meet the requirements of product thinning and high sound quality, the loudspeaker box is required to be developed towards the direction of facilitating the realization of thinning and high power as much as possible.
The loudspeaker box in the related art comprises a front cover, a rear cover and a sound generating unit, wherein the rear cover is covered on the front cover and jointly forms an accommodating space, the sound generating unit is accommodated in the accommodating space, and the accommodating space is divided into a front cavity and a rear cavity by the sound generating unit.
However, the front cover and the rear cover of the speaker box of the related art are made of plastic and are formed by injection molding, and the sound generating unit is sealed by ultrasonic welding, and the front cover and the rear cover made of plastic and the ultrasonic welding require more volume, so that the volume design of the front cavity and the rear cavity is limited, and further, the acoustic performance is limited.
Therefore, a new technical solution is needed to solve the above problems.
[ summary of the invention ]
The technical problem to be solved by the invention is to provide a loudspeaker box with a larger back cavity space and an assembly process thereof.
The invention is realized by the following technical scheme: the utility model provides a loudspeaker box, its includes the casing and accept in the sound production monomer that has the vibrating diaphragm in the casing, the casing includes the protecgulum and covers and fits the back lid of protecgulum, the protecgulum is including supporting sound production monomer have the support piece of one side of vibrating diaphragm, with support piece mould plastics fixed connection's leading sound passageway and fixed connection support piece with the connecting piece of back lid, support piece include with the vibrating diaphragm just to the diapire that the interval set up, certainly the diapire to being close to sound production monomer direction is buckled and is extended and is supported sound production monomer's supporting wall and certainly the supporting wall to back lid direction extends and encircles the fender wall that sound production monomer week side set up, back lid, support piece and the connecting piece is made by metal material, sound production monomer and support piece and the connecting piece encloses into the antetheca jointly, leading sound passageway will antetheca and external intercommunication, the sounding monomer, the front cover and the rear cover form a closed rear cavity together.
Preferably, the support wall is including being fixed in the free fixed plate of sound production and connection the fixed plate the connecting plate of diapire, keep off the wall certainly the outer peripheral edges of fixed plate extend and are fixed in the sound production monomer, the connecting plate buckle extend and include with connecting piece looks butt's step.
Preferably, the connecting piece including encircle the diapire and with the relative just interval of fixed plate sets up dull and stereotyped, certainly dull and stereotyped outer peripheral edges are followed and are close to the free direction of sound production extends and is fixed in the fixed part of back lid and certainly dull and stereotyped both ends are stretched out and are fixed in the fixed foot of sound conduction channel, dull and stereotyped inner peripheral edge butt in the step of connecting plate.
Preferably, the rear cover includes a base wall, a plurality of side walls extending from an edge of the base wall, and a receiving groove formed by the base wall and the side walls for receiving the sound generating unit, one of the side walls is provided with an opening recessed from the edge thereof away from the base wall and communicating with the receiving groove, and the sound guide channel protrudes from the opening.
Preferably, the sound guide channel comprises a first wall abutting against the sound generating unit, a second wall connected with the first wall and protruding out of the opening, and a channel penetrating through the first wall and the second wall, and the channel is communicated with the front cavity and the outside.
Preferably, the first wall further includes fixing blocks located at both ends thereof and abutting against the side wall having the opening, and the fixing blocks include a pair of step portions located at one end thereof close to the bottom wall and accommodating the fixing legs of the connecting member.
Preferably, the second wall comprises a bar at its end remote from the bottom wall, the bar abutting the side wall with the opening.
Preferably, the connecting member and the rear cover are made of a metal material.
Preferably, the sounding unit comprises a basin frame, the blocking wall is fixed on the basin frame, and the first wall abuts against the basin frame.
The invention is realized by the following technical scheme: a process for assembling a loudspeaker enclosure, the process comprising the steps of: s1, injection molding the support piece and the sound guide channel integrally; s2, fixing the supporting piece, the sound guide channel and the connecting piece together by laser welding to form a front cover, and fixing the connecting part of the connecting piece and the sound guide channel by gluing; s3, assembling the sounding monomer and assembling the sounding monomer on the front cover; s4, assembling the rear cover to the front cover, and fixing the rear cover by laser welding; and S5, gluing and sealing the connection part of the front cover and the rear cover.
The loudspeaker box has the following advantages:
compared with the prior art, the loudspeaker box provided by the invention has the advantages that the supporting piece, the connecting piece and the rear cover of the front cover are made of metal materials, and compared with the plastic shell in the prior art, the loudspeaker box provided by the invention can be applied with thinner wall thickness on the premise of ensuring the strength, so that the volume in the shell of the loudspeaker box is increased, the volume of the rear cavity is improved, and the sound production effect is enhanced; in addition, compared with the prior art, the support piece prepared from the metal material can directly support the sounding single body, so that the space of the support structure below the sounding single body is saved, and the volume of the rear cavity of the loudspeaker box is further increased.
Compared with the prior art, in the assembling process of the loudspeaker box, the supporting piece and the sound guide channel are fixed through injection molding, the front cover and the rear cover are fixed through laser welding, and the loudspeaker box can be assembled.
[ description of the drawings ]
FIG. 1 is a perspective assembly view of a loudspeaker enclosure of the present invention;
FIG. 2 is a partial assembly view of an open connector of the speaker cabinet of the present invention;
FIG. 3 is an exploded perspective view of the speaker cabinet of the present invention;
FIG. 4 is a perspective view of the support member and sound guide channel of the speaker box of the present invention;
fig. 5 is a sectional view taken along a-a in fig. 1.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
The loudspeaker box of the invention can be applied to portable mobile communication devices, such as electronic products of mobile phones, game machines and the like.
As shown in fig. 1 to 5, the speaker box 100 of the present invention includes a sound generating unit 1 and a housing accommodating the sound generating unit 1. The housing includes a front cover 2 and a rear cover 3 covering the front cover 2.
The sounding unit 1 comprises a vibration system, a magnetic circuit system and a basin stand 13. The vibration system may vibrate in a vibration direction. In the present embodiment, the vibration system includes a diaphragm 11, and the magnetic circuit system includes a yoke 12.
As shown in fig. 2 and 3, the front cover 2 includes a support member 21 supporting one side of the sound generating unit 1 having the diaphragm 11, a sound guide channel 22 injection-molded and fixedly connected with the support member 21, and a connecting member 23 fixedly connecting the support member 21 and the rear cover 3.
The rear cover 3 includes a base wall 31, a plurality of side walls extending from an edge of the base wall 31, and a receiving groove 30 formed by the base wall 31 and the plurality of side walls, the sound generating unit 1 is received in the receiving groove 30, one of the plurality of side walls is provided with an opening 320 recessed from an edge thereof away from the base wall 31, the opening 320 is communicated with the receiving groove 30, and the sound guide channel 22 protrudes from the opening 320. In the present embodiment, the base wall 31 has a rectangular shape, and the plurality of side walls include a first side wall 32, a second side wall 33, a third side wall 3, and a fourth side wall 35, which extend perpendicularly from both edges of the base wall 31 located on the major axis, and which extend perpendicularly from both edges of the base wall 31 located on the minor axis. The opening 320 is located on the first sidewall 32 and has a trapezoidal shape.
In the present embodiment, the support member 21, the connecting member 23, and the rear cover 3 are made of a metal material, and the connecting member 23 and the rear cover 3 are fixed together by laser welding.
As shown in fig. 2 to 5, the support member 21 and the sound guide channel 22 are integrally formed by injection molding, but in other embodiments, the support member 21 and the sound guide channel 22 may be separately injection molded and then welded together.
The supporting member 21 includes a bottom wall 211 opposite to the diaphragm 11 and spaced apart from the diaphragm, a supporting wall 212 extending from the bottom wall 211 to a direction close to the sound generating unit 1 and supporting the sound generating unit 1, and a blocking wall 213 extending from the supporting wall 212 to the rear cover 3 and surrounding the sound generating unit 1.
The support wall 212 includes a fixing plate 2121 fixed to the diaphragm 11 of the sound generating unit 1 and a connecting plate 2122 connecting the bottom wall 211 and the fixing plate 2121. The connecting plate 2122 extends in a bent manner and includes a step 2123 abutting against the connecting member 23. In this embodiment, the blocking walls 213 include four walls and extend from the outer periphery of the fixed plate 2121. The blocking wall 213 is fixed on the frame 13 of the sound generating unit 1, and can be fixed by gluing or welding. By providing the blocking wall 213, the fixed connection strength of the front cover 2 and the sound generating unit 1 is improved.
The connector 23 includes a flat plate 231 surrounding the bottom wall 211 and opposing the fixing plate 2121 at an interval, a fixing portion 232 protruding from an outer peripheral edge of the flat plate 231 in a direction approaching the sound emitting unit 1, and fixing legs 233 protruding from both ends of the flat plate 231. The fixing portion 232 is fixed to the rear cover 3, and the fixing legs 233 are fixed to the sound guide passage 22. The inner periphery of the flat plate 231 is fixed to the step 2123 of the connecting plate 2122.
The sound guide channel 22 includes a first wall 221 abutting against the frame 13 of the sound generating unit 1, a second wall 222 connecting the first wall 221 and protruding from the opening 320, and a channel 220 penetrating the first wall 221 and the second wall 222. The first wall 221 further includes fixing blocks 2211 located at two ends thereof and abutting against the first side wall 32 of the rear cover 3, and the fixing blocks 2211 are wedge-shaped and include a pair of step portions 2212 located at one end thereof close to the bottom wall 211 and receiving the fixing legs 233 of the connecting member 23. The second wall 222 is located outside the housing and includes a stop 2221 at an end thereof away from the base plate 211, and the stop 2221 abuts against the first side wall 32, and can be fixed by gluing or welding at the abutting position.
The fixing portions 232 of the connecting member 23 are fixed to the plurality of side walls of the rear cover 3 by laser welding.
The sound generating unit 1, the supporting member 21 and the connecting member 23 jointly enclose a front cavity 41, the front cavity 41 is communicated with the outside through a channel 220 of the sound guide channel 22, and the sound generating unit 1, the front cover 2 and the rear cover 3 jointly form a closed rear cavity 42.
The support member 21 of the front cover 2 made of a metal material can directly support the sound generating unit 1, so that the volume of a support structure for supporting the sound generating unit in the prior art is saved, and the volume of the rear cavity is increased.
The invention also provides a process for assembling a loudspeaker enclosure, providing the loudspeaker enclosure 100 of the invention, the method comprising the steps of:
s1, injection molding the support piece 21 and the sound guide channel 22 integrally;
s2, the support member 21, the sound guide passage 22 and the connecting member 23 are fixed together by laser welding to form the front cover 2, and the fixing leg 233 of the connecting member 23 abuts against the step 2212 and is fixed by gluing;
s3, assembling the sounding monomer 1 on the front cover 2, fixing the vibrating diaphragm 11 of the sounding monomer 1 with the fixing plate 2121 of the supporting member 21, and fixing the blocking wall 213 with the basin stand 13;
s4, the rear cover 3 is assembled to the front cover 2 and fixed by laser welding.
And S5, gluing and sealing the connection part of the front cover 2 and the rear cover 3.
After the loudspeaker 100 is assembled, the space of the rear cavity 42 is enlarged through the arrangement of the support piece 21 and the sound guide channel 22, so that the rear cavity is maximized, and the acoustic performance is improved. Compared with the prior injection molding shell, the connecting piece 23 and the rear cover 3 made of metal materials can reduce the thickness while ensuring the structural strength, and meet the requirement of product miniaturization.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a loudspeaker box, its include the casing with accept in sound production monomer that has a vibrating diaphragm in the casing, its characterized in that: the shell comprises a front cover and a rear cover covering the front cover, the front cover comprises a support piece for supporting one side of the sound generating unit with the vibrating diaphragm, a sound guide channel fixedly connected with the support piece in an injection molding manner and a connecting piece fixedly connected with the support piece and the rear cover, the supporting piece comprises a bottom wall which is opposite to the vibrating diaphragm and is arranged at an interval, a supporting wall which is bent and extended from the bottom wall to the direction close to the sound production monomer and supports the sound production monomer, and a blocking wall which is extended from the supporting wall to the direction of the rear cover and surrounds the sound production monomer, the rear cover, the supporting piece and the connecting piece are made of metal materials, the sounding unit, the supporting piece and the connecting piece enclose a front cavity together, the sound guide channel is used for communicating the front cavity with the outside, and the sound generating unit, the front cover and the rear cover form a closed rear cavity together.
2. A loudspeaker enclosure as claimed in claim 1, wherein: the support wall is including being fixed in the free fixed plate of sound production and connection the fixed plate with the connecting plate of diapire, keep off the wall certainly the outer peripheral edges of fixed plate extend and are fixed in the sound production monomer, the connecting plate buckle extend and include with connecting piece looks butt's step.
3. A loudspeaker enclosure as claimed in claim 2, wherein: the connecting piece including encircle the diapire and with the relative just dull and stereotyped that the interval set up of fixed plate, certainly dull and stereotyped outer peripheral edge is close to the free direction of sound production extends and is fixed in the fixed part of back lid and certainly dull and stereotyped both ends are stretched out and are fixed in lead the fixed foot of sound passageway, dull and stereotyped inner peripheral edge butt in the step of connecting plate.
4. A loudspeaker enclosure as claimed in claim 3, wherein: the rear cover comprises a base wall, a plurality of side walls extending from the edge of the base wall and an accommodating groove formed by the base wall and the side walls for accommodating the sounding monomers, wherein one of the side walls is provided with an opening which is recessed from the edge of the side wall far away from the base wall and communicated with the accommodating groove, and the sound guide channel protrudes out of the opening.
5. A loudspeaker enclosure as claimed in claim 4, wherein: the sound guide channel comprises a first wall, a second wall and a channel, wherein the first wall is abutted to the sound generating monomer, the second wall is connected with the first wall and protrudes out from the opening, the channel penetrates through the first wall and the second wall, and the channel is communicated with the front cavity and the outside.
6. A loudspeaker enclosure as claimed in claim 5, wherein: the first wall further comprises fixing blocks which are located at two ends of the first wall and abut against the side wall with the opening, and each fixing block comprises a pair of step portions which are located at one end, close to the bottom wall, of the fixing block and accommodate fixing pins of the connecting piece.
7. A loudspeaker enclosure as claimed in claim 6, wherein: the second wall comprises a blocking strip at one end far away from the bottom wall, and the blocking strip is abutted with the side wall with the opening.
8. A loudspeaker enclosure as claimed in claim 7, wherein: the sounding unit comprises a basin frame, the baffle wall is fixed on the basin frame, and the first wall is abutted to the basin frame.
9. A process of assembling a loudspeaker enclosure according to any one of claims 1 to 8, wherein: the process comprises the following steps:
s1, injection molding the support piece and the sound guide channel integrally;
s2, fixing the supporting piece, the sound guide channel and the connecting piece together by laser welding to form a front cover, and fixing the connecting part of the connecting piece and the sound guide channel by gluing;
s3, assembling the sounding monomer and assembling the sounding monomer on the front cover;
s4, assembling the rear cover to the front cover, and fixing the rear cover by laser welding;
and S5, gluing and sealing the connection part of the front cover and the rear cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507873.3A CN112468911B (en) | 2020-12-18 | 2020-12-18 | Loudspeaker box and assembling process thereof |
| PCT/CN2020/141861 WO2022126788A1 (en) | 2020-12-18 | 2020-12-30 | Loudspeaker box and assembling process therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507873.3A CN112468911B (en) | 2020-12-18 | 2020-12-18 | Loudspeaker box and assembling process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112468911A true CN112468911A (en) | 2021-03-09 |
| CN112468911B CN112468911B (en) | 2022-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011507873.3A Active CN112468911B (en) | 2020-12-18 | 2020-12-18 | Loudspeaker box and assembling process thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112468911B (en) |
| WO (1) | WO2022126788A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852708A (en) * | 2021-09-13 | 2021-12-28 | 歌尔股份有限公司 | Electronic device, sound production device for electronic device and assembling method of sound production device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022126788A1 (en) | 2022-06-23 |
| CN112468911B (en) | 2022-05-31 |
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