CN112073853A - Sound production device - Google Patents

Sound production device Download PDF

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Publication number
CN112073853A
CN112073853A CN202010880925.5A CN202010880925A CN112073853A CN 112073853 A CN112073853 A CN 112073853A CN 202010880925 A CN202010880925 A CN 202010880925A CN 112073853 A CN112073853 A CN 112073853A
Authority
CN
China
Prior art keywords
sounding
base
shell
sound
extending
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.)
Pending
Application number
CN202010880925.5A
Other languages
Chinese (zh)
Inventor
吴军
印兆宇
魏威
刘忠原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Optoelectronic Changzhou Co Ltd
Science and Education City Branch of AAC New Energy Development Changzhou Co Ltd
Original Assignee
AAC Optoelectronic Changzhou Co Ltd
Science and Education City Branch of AAC New Energy Development Changzhou Co Ltd
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 AAC Optoelectronic Changzhou Co Ltd, Science and Education City Branch of AAC New Energy Development Changzhou Co Ltd filed Critical AAC Optoelectronic Changzhou Co Ltd
Priority to CN202010880925.5A priority Critical patent/CN112073853A/en
Publication of CN112073853A publication Critical patent/CN112073853A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

Abstract

The invention provides a sounding device, which comprises a shell with an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the sounding monomer comprises a vibrating diaphragm for vibrating and sounding, the shell is made of a metal material and comprises a base and a rear shell which are respectively arranged on two opposite sides of the sounding monomer in a covering mode along the vibration direction of the vibrating diaphragm, and the base is provided with a sounding port penetrating through the base; the base comprises a ring-shaped base plate, a base extension wall bent and extended from the outer periphery of the base plate to the direction of the rear shell, and a flange obliquely extended from the inner periphery of the base plate to the rear shell and abutted and fixed on the peripheral side of the sounding monomer; the flanging is annular and surrounds the sounding opening, one side of the sounding monomer, which is provided with the vibrating diaphragm, faces the sounding opening, and the flanging and the sounding monomer surround the sounding monomer to form a glue dispensing groove; the rear shell, the base and the sounding monomer jointly enclose a rear sound cavity. Compared with the related art, the sound production device has better acoustic effect.

Description

Sound production device
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of electroacoustic conversion, in particular to a sounding device applied to a portable mobile electronic product.
[ background of the invention ]
The sound generating device is also called a loudspeaker, and is widely applied to portable mobile electronic products, such as mobile phones, so that an audio signal is converted into sound to be played, and the sound generating device has high loudness and vibration amplitude.
The sound production device of the related art comprises a sound production unit for producing sound, a base and a rear shell, wherein the base and the rear shell are respectively covered on two opposite sides of the sound production unit, the base and the rear shell jointly enclose an accommodating space, and the base and the rear shell are subjected to injection molding and are fixed through ultrasonic welding.
However, if the base and the rear shell of the sound device in the related art need to be fixed by ultrasonic welding, more space is needed, and the size of the space in the internal cavity of the sound device is limited.
Therefore, there is a need to provide a new sound generation device to solve the above technical problems.
[ summary of the invention ]
The invention aims to provide a sound production device with better acoustic effect.
In order to achieve the above object, the present invention provides a sound generating device, which includes a housing having an accommodating space and a sound generating unit accommodated in the accommodating space, wherein the sound generating unit includes a vibrating diaphragm for vibrating sound, the housing is made of a metal material, and includes a base and a rear housing respectively covering two opposite sides of the sound generating unit along a vibration direction of the vibrating diaphragm, and the base is provided with a sound generating port penetrating through the base;
the base comprises an annular base plate, a base extending wall bent and extending from the outer periphery of the base plate to the rear shell, and a flange obliquely extending from the inner periphery of the base plate to the rear shell and fixedly connected with the periphery of the sounding monomer in an abutting mode; the flanging is annular and surrounds the sounding opening, one side of the sounding monomer, which is provided with the vibrating diaphragm, is arranged towards the sounding opening, and the flanging and the sounding monomer surround the glue dispensing groove together;
the rear shell, the base and the sounding monomer form a rear sound cavity together in an enclosing mode.
Preferably, a sealing ring is arranged in the dispensing groove to seal the base and the sounding monomer.
Preferably, the backshell is including being located the sound production monomer is kept away from base one side and with sound production monomer spaced backshell board, by the periphery of backshell board to the backshell extension wall that the base direction is buckled and is extended, backshell extension wall butt in base extension wall and with base extension wall welded fastening.
Preferably, the sounding unit is at least partially exposed out of the casing.
Preferably, the sealing ring is formed by filling glue into the glue dispensing groove.
Preferably, the sounding device further comprises a breathable isolating piece located in the rear sound cavity, and the breathable isolating piece is fixed to the flange and separates the sounding monomer from the rear sound cavity.
Preferably, the breathable isolating piece comprises an isolating piece body arranged opposite to the rear shell plate at intervals, an isolating piece extending part bent and extending from the periphery of the isolating piece body to the base, and an isolating piece fixing part bent and extending from one end, far away from the isolating piece body, of the isolating piece extending part; the partition extending part and the rear shell extending wall are arranged at intervals, the partition fixing part is fixed on the flanging, and the breathable partition, the rear shell and the base together enclose a powder filling space.
Preferably, the sounding device further comprises a rubber ring attached to one side of the base plate, which is far away from the sounding monomer.
Preferably, the rubber ring is made of double-sided adhesive tape.
Preferably, the sounding device further comprises a conductive member extending through the housing toward the sounding unit and electrically connected to the sounding unit.
Preferably, the conductive piece comprises a conductive piece body, a connecting arm extending towards the direction of the sounding monomer from two ends of the conductive body and fixedly and electrically connected with the sounding monomer, and an extending arm extending towards the direction far away from the sounding monomer and penetrating through the shell.
Compared with the prior art, the sounding device comprises a shell with an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the shell is designed into a base and a rear shell which are respectively arranged on two opposite sides of the sounding monomer in a covering manner, meanwhile, the flanging is fixed with the peripheral side of the sounding monomer, the rear shell, the base and the sounding monomer form a rear sound cavity in a surrounding manner, and the shell is made of a metal material; under the condition of not increasing the overall dimension, the space of the rear sound cavity is increased, so that the acoustic effect of the sound production device is better; the flanging and the sounding single body jointly form a dispensing groove, and the dispensing groove is used for accommodating a sealing ring, so that the shell and the sounding single body are better in sealing performance, do not occupy space and are high in space utilization rate; the turnup is obliquely arranged, so that the glue dispensing groove can dispense glue more easily; in addition, the fixing with the sounding monomer is realized only by utilizing the base and the rear shell, and the rear sound cavity is formed, so that the number of parts is minimized, and the cost is saved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a sound device according to the present invention;
FIG. 2 is an exploded perspective view of a sound device according to the present invention;
fig. 3 is a sectional view taken along line a-a in fig. 1.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a sound generating device 100, which includes a housing 1 having an accommodating space 10, a sound generating unit 2 accommodated in the accommodating space 10, a ventilation spacer 4, a conductive member 5 and a rubber ring 6.
The sounding monomer 2 comprises a metal basin frame 22 and a vibrating diaphragm 21 which is fixed on the metal basin frame 22 and used for vibrating and sounding.
Specifically, the casing 1 includes a base 11 and a rear shell 12, the base 11 and the rear shell 12 are respectively covered on two opposite sides of the sound generating unit 2 along the vibration direction of the vibrating diaphragm 21, the base 11 and the rear shell 12 are covered on two opposite sides of the metal basin frame 22 along the vibration direction of the vibrating diaphragm 21 in this embodiment, and the base 11 is provided with a sound generating port 1110 penetrating through the base 11; the base 11 and the rear shell 12 are both made of metal material, so that the whole housing 1 becomes thin, and the size of the accommodating space 10 is further increased.
The base 11 comprises a ring-shaped base plate 111, a base extension wall 112 bent and extended from the outer periphery of the base plate 111 to the direction of the rear shell 12, and a flange 113 inclined and extended from the inner periphery of the base plate 111 to the rear shell 12, wherein the flange 113 abuts against the sounding unit 2 and is fixed with the periphery of the sounding unit 2; the flanging 113 is annular and encloses into the sound-emitting opening 1110, the sound-emitting unit 2 is provided with one side of the vibrating diaphragm 21 faces the sound-emitting opening 1110, the flanging 113 and the sound-emitting unit 2 jointly enclose into a dispensing groove 14a, and a sealing ring 141a is arranged in the dispensing groove 14a so as to seal the base 11 and the sound-emitting unit 2. Specifically, the flange 113 and the metal frame 22 together form a dispensing groove 14a, the dispensing groove 14a is used for accommodating glue to form a sealing ring 141a, that is, the sealing ring 141a is formed by filling glue into the dispensing groove 14a, so that the casing 1 and the sounding unit 2 have better sealing performance and do not occupy space, and the space utilization rate is high; the turned edge 113 is obliquely arranged, so that the glue dispensing groove 14a can dispense glue more easily; meanwhile, the sealing ring can be assembled with the whole machine, and materials are saved. The sounding monomer 2 is at least partially exposed out of the casing 1, that is, the diaphragm 21 is exposed out of the casing 1, so that the sounding effect of the diaphragm 21 is better.
The rear shell 12 includes a rear shell plate 121 located on one side of the sound generating unit 2 away from the base 11 and spaced from the sound generating unit 2, and a rear shell extension wall 122 extending from the periphery of the rear shell plate 121 to the base 11 in a bending manner. Specifically, the extending direction of the rear shell extending wall 122 is parallel to the vibration direction of the diaphragm 21, and the rear shell extending wall 122 abuts against the base extending wall 112 and is fixed to the base extending wall 112 by welding, so that the reliability is better.
In this embodiment, the rear shell 12, the base 11 and the sound generating unit 2 together enclose a rear sound cavity 20. Thus, the sound-generating device 100 of the present invention forms a relatively closed rear sound cavity structure, which is simple in structure and improves the acoustic performance, especially the low frequency acoustic performance, of the sound-generating device 100. In this embodiment, a leakage portion 23 is further disposed on one side of the sounding unit 2 away from the diaphragm 21, and the leakage portion 23 is communicated with the rear acoustic cavity 20.
The air permeable partition 4 is located in the rear sound cavity 20, fixed to the flange 113 and separating the sound generating unit 1 from the rear sound cavity 20.
Specifically, the ventilation spacer 4 includes a spacer body 41 disposed opposite to the rear casing panel 121 at a distance, a spacer extension portion 42 extending from the periphery of the spacer body 41 to the base 11 in a bending manner, and a spacer fixing portion 43 extending from one end of the spacer extension portion 42 away from the spacer body 41 in a bending manner; the partition extending part 42 and the rear casing extending wall 122 are arranged at intervals, the partition fixing part 43 is fixed on the turned-over edge 113, the breathable partition 4, the rear casing 12 and the base 11 jointly form a powder filling space 30, and the powder filling space 30 is used for packaging sound absorption particles and improving the acoustic effect of the sound generating device 100.
The rubber ring 6 is attached to one side, away from the sounding monomer 2, of the base plate 111, and the sounding device 100 is assembled and sealed with the whole machine through the rubber ring 6; preferably, the rubber ring 6 is made of double-sided adhesive tape.
The housing 1 includes a gap 13a penetrating therethrough, and the sound generating device 100 further includes a conductive member 5 extending toward the sound generating unit 2 through the gap 13a and electrically connected to the sound generating unit 2.
Specifically, the conductive device 5 includes a conductive device body 52, a connecting arm 53 extending from two ends of the conductive device body 52 to the sounding single body 2 and electrically connected to the sounding single body 2, and an extending arm 51 extending from the conductive device body 52 to a direction away from the sounding single body 2 and penetrating through the gap 13 a. Through the structural design of the conductive piece 5, the whole conductive piece 5 occupies a small space of the sounding device 100, and meanwhile, the electric connection with the sounding unit 2 is realized, so that the space utilization rate is higher.
Compared with the prior art, the sounding device comprises a shell with an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the shell is designed into a base and a rear shell which are respectively arranged on two opposite sides of the sounding monomer in a covering manner, meanwhile, the flanging is fixed with the peripheral side of the sounding monomer, the rear shell, the base and the sounding monomer form a rear sound cavity in a surrounding manner, and the shell is made of a metal material; under the condition of not increasing the overall dimension, the space of the rear sound cavity is increased, so that the acoustic effect of the sound production device is better; the flanging and the sounding single body jointly form a dispensing groove, and the dispensing groove is used for accommodating a sealing ring, so that the shell and the sounding single body are better in sealing performance, do not occupy space and are high in space utilization rate; the turnup is obliquely arranged, so that the glue dispensing groove can dispense glue more easily; in addition, the fixing with the sounding monomer is realized only by utilizing the base and the rear shell, and the rear sound cavity is formed, so that the number of parts is minimized, and the cost is saved.
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 (11)

1. A sounding device comprises a shell with an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the sounding monomer comprises a vibrating diaphragm for vibrating and sounding, and the sounding device is characterized in that the shell is made of a metal material and comprises a base and a rear shell which are respectively covered on two opposite sides of the sounding monomer along the vibration direction of the vibrating diaphragm, and the base is provided with a sounding port penetrating through the base;
the base comprises an annular base plate, a base extending wall bent and extending from the outer periphery of the base plate to the rear shell, and a flange obliquely extending from the inner periphery of the base plate to the rear shell and fixedly connected with the periphery of the sounding monomer in an abutting mode; the flanging is annular and surrounds the sounding opening, one side of the sounding monomer, which is provided with the vibrating diaphragm, is arranged towards the sounding opening, and the flanging and the sounding monomer surround the glue dispensing groove together;
the rear shell, the base and the sounding monomer form a rear sound cavity together in an enclosing mode.
2. The sound production device of claim 1, wherein a sealing ring is disposed in the dispensing groove to seal the base with the sound production unit.
3. The sounding device according to claim 1, wherein the rear housing includes a rear housing plate spaced apart from the sounding unit and located on a side of the sounding unit away from the base, and a rear housing extension wall extending from a periphery of the rear housing plate in a bending manner in a direction of the base, the rear housing extension wall abutting against the base extension wall and being welded to the base extension wall.
4. The sound-producing device of claim 1, wherein the sound-producing unit is at least partially exposed to the housing.
5. The sounder device according to claim 1, wherein the sealing ring is formed by filling glue into the glue dispensing groove.
6. The sound-producing device of claim 1 further comprising a gas-permeable spacer positioned within the rear sound cavity, the gas-permeable spacer being secured to the cuff and separating the sound-producing unit from the rear sound cavity.
7. The sounder device according to claim 6, wherein the vent spacer comprises a spacer body disposed in spaced relation to the rear housing plate, a spacer extension extending from a periphery of the spacer body toward the base, and a spacer fixing portion extending from an end of the spacer extension remote from the spacer body; the partition extending part and the rear shell extending wall are arranged at intervals, the partition fixing part is fixed on the flanging, and the breathable partition, the rear shell and the base together enclose a powder filling space.
8. The sounder device according to claim 1, further comprising a rubber ring attached to a side of the base plate remote from the sound generating unit.
9. The sound production device of claim 1, wherein the rubber ring is made of double-sided adhesive tape.
10. The sounder device according to claim 1, further comprising a conductive member extending through the housing toward and electrically connected to the sound emitting cells.
11. The sounding device according to claim 10, wherein the conductive member comprises a conductive member body, a connecting arm extending from two ends of the conductive member body to the sounding unit and electrically connected to the sounding unit, and an extending arm extending from the conductive member body to a direction away from the sounding unit and penetrating through the housing.
CN202010880925.5A 2020-08-27 2020-08-27 Sound production device Pending CN112073853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010880925.5A CN112073853A (en) 2020-08-27 2020-08-27 Sound production device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010880925.5A CN112073853A (en) 2020-08-27 2020-08-27 Sound production device

Publications (1)

Publication Number Publication Date
CN112073853A true CN112073853A (en) 2020-12-11

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ID=73659063

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010880925.5A Pending CN112073853A (en) 2020-08-27 2020-08-27 Sound production device

Country Status (1)

Country Link
CN (1) CN112073853A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112468906A (en) * 2020-12-18 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker box and assembling process thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012134640A (en) * 2010-12-20 2012-07-12 Minebea Co Ltd Speaker
CN109831722A (en) * 2018-12-30 2019-05-31 瑞声声学科技(深圳)有限公司 A kind of loudspeaker
CN110213697A (en) * 2019-05-09 2019-09-06 瑞声光电科技(常州)有限公司 Microphone device
CN211321501U (en) * 2020-01-09 2020-08-21 瑞声科技(新加坡)有限公司 Loudspeaker box

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012134640A (en) * 2010-12-20 2012-07-12 Minebea Co Ltd Speaker
CN109831722A (en) * 2018-12-30 2019-05-31 瑞声声学科技(深圳)有限公司 A kind of loudspeaker
CN110213697A (en) * 2019-05-09 2019-09-06 瑞声光电科技(常州)有限公司 Microphone device
CN211321501U (en) * 2020-01-09 2020-08-21 瑞声科技(新加坡)有限公司 Loudspeaker box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112468906A (en) * 2020-12-18 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker box and assembling process thereof

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