CN107690106A - Loudspeaker enclosure - Google Patents

Loudspeaker enclosure Download PDF

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Publication number
CN107690106A
CN107690106A CN201710536963.7A CN201710536963A CN107690106A CN 107690106 A CN107690106 A CN 107690106A CN 201710536963 A CN201710536963 A CN 201710536963A CN 107690106 A CN107690106 A CN 107690106A
Authority
CN
China
Prior art keywords
loudspeaker enclosure
housing
loudspeaker
cover plate
elastic cover
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.)
Granted
Application number
CN201710536963.7A
Other languages
Chinese (zh)
Other versions
CN107690106B (en
Inventor
秦鹏
施胜荣
张哲�
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 Technologies Pte Ltd
Original Assignee
AAC Technologies Pte 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 Technologies Pte Ltd filed Critical AAC Technologies Pte Ltd
Priority to CN201710536963.7A priority Critical patent/CN107690106B/en
Publication of CN107690106A publication Critical patent/CN107690106A/en
Application granted granted Critical
Publication of CN107690106B publication Critical patent/CN107690106B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
    • H04R1/28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • 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
    • H04R1/021Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • 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
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
    • H04R1/28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers

Abstract

The present invention discloses a kind of loudspeaker enclosure, including housing and the loudspeaker monomer being contained in the housing, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, the vibrating diaphragm is arranged at intervals to form the preceding operatic tunes with the housing, the loudspeaker enclosure also includes the connection preceding operatic tunes and leads sound passage with extraneous, the preceding operatic tunes and the ante-chamber led sound passage and collectively form the loudspeaker enclosure, the position that the ante-chamber is corresponded on the housing is provided with the through hole for running through housing, the loudspeaker enclosure also includes the elastic cover plate for being used to absorb the energy of the vibration under particular resonant frequency that the through hole is connected and covered with the housing, the elastic cover plate includes the elastomeric layer of sheet metal and stacking located at the sheet metal.Loudspeaker enclosure provided by the invention, ante-chamber resonance can be weakened, resonance peak is reduced, improve distortion.

Description

Loudspeaker enclosure
【Technical field】
The present invention relates to electroacoustic switch technology field, and in particular to a kind of loudspeaker enclosure.
【Background technology】
With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly most common, most portable mobile terminal device.At present, the function of mobile phone is extremely various, and one of them is just It is the music function of high-quality, therefore, the loudspeaker enclosure for playing sound is widely applied Intelligent mobile equipment till now Among.
Loudspeaker enclosure includes housing, the loudspeaker monomer being contained in the housing, and the loudspeaker monomer includes being used for The vibrating diaphragm of vibration sounding, the vibrating diaphragm are arranged at intervals to form the preceding operatic tunes with the housing, and the preceding operatic tunes connects with leading sound passage Form ante-chamber.In correlation technique, housing is made of hard plastic material and metal material, and region corresponding to the preceding operatic tunes is firm Property wall.The damping of rigid walls is small, and Oscillation Amplitude is small, and emittance is limited, and cavity energy effectively can not blaze abroad, because And the energy of some assigned frequencies can not be absorbed.Ante-chamber resonance is produced during the loudspeaker enclosure sounding, due to resonance effect, in High frequency forms resonance peak, while 2 times, 3 inferior distortion spikes can be produced in distortion, influences sense of hearing.
Therefore, it is necessary to providing a kind of new loudspeaker enclosure solves above-mentioned technical problem.
【The content of the invention】
The purpose of the present invention is to overcome above-mentioned technical problem, there is provided one kind weakens ante-chamber resonance, reduces resonance peak, improves and lose Genuine loudspeaker enclosure.
Technical scheme is as follows:A kind of loudspeaker enclosure, including housing and the loudspeaker that is contained in the housing Monomer, the loudspeaker monomer include the vibrating diaphragm for vibration sounding, and the vibrating diaphragm is arranged at intervals to form preceding sound with the housing Chamber, the loudspeaker enclosure also include the connection preceding operatic tunes and lead sound passage with extraneous, and the preceding operatic tunes leads sound passage with described The ante-chamber of the loudspeaker enclosure is collectively formed, the position that the ante-chamber is corresponded on the housing is provided with the through hole for running through housing, institute State loudspeaker enclosure also include be connected and cover with the housing through hole for absorbing vibration under particular resonant frequency The elastic cover plate of energy, the elastic cover plate include the elastomeric layer of sheet metal and stacking located at the sheet metal.
Preferably, the through hole is set with the loudspeaker monomer face.
Preferably, the elastomeric layer is formed at the sheet metal by spraying coating process.
Preferably, the elastomeric layer is bonded and fixed to the sheet metal.
Preferably, the elastomeric layer is one in TPUE, methyl cyclopentenyl ketone or silica gel Kind.
Preferably, the elastic cover plate absorbs the energy for the vibration that resonant frequency is 3000~7000Hz.
Compared with correlation technique, loudspeaker enclosure beneficial effect provided by the invention is:The housing is included described in correspondence The through hole that preceding cavity region is formed, the loudspeaker enclosure also include being connected with the housing and covering the elastic cover plate of the through hole, For absorbing the energy of the vibration under particular resonant frequency, so as to weaken the resonance effect of the loudspeaker enclosure and reduce its mistake Very, and then the acoustical behavior of the loudspeaker enclosure is improved.
【Brief description of the drawings】
Fig. 1 is the stereogram of loudspeaker enclosure provided by the invention;
Fig. 2 is the exploded view of loudspeaker enclosure shown in Fig. 1;
Fig. 3 is sectional view of the loudspeaker enclosure along line A-A shown in Fig. 1;
Fig. 4 is the amplitude measurement result of elastic cover plate in loudspeaker enclosure provided by the invention;
Fig. 5 is the resonance peak of loudspeaker enclosure provided by the invention loudspeaker enclosure corresponding with using rigid walls in correlation technique Contrast curve;
Fig. 6 is loudspeaker enclosure provided by the invention loudspeaker enclosure distortion spike corresponding with using rigid walls in correlation technique Contrast curve.
【Embodiment】
Below in conjunction with drawings and embodiments, the invention will be further described.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, wherein Fig. 1 is the stereogram of loudspeaker enclosure provided by the invention;Fig. 2 is Fig. 1 The exploded view of shown loudspeaker enclosure;Fig. 3 is sectional view of the loudspeaker enclosure along line A-A shown in Fig. 1.The loudspeaker enclosure 100 includes Housing 11, the loudspeaker monomer 12 being contained in the housing 11.The loudspeaker monomer 12 includes shaking for vibration sounding Film 121.
The housing 11 includes upper lid 111 and lower cover 112, and the upper lid 111 and the lower cover 112 enclose to form a collecting Space, the loudspeaker monomer 12 are contained in the receiving space.
The inwall of the vibrating diaphragm 121 and the upper lid 111 is arranged at intervals to form the preceding operatic tunes 113, and the upper lid 111 also includes Connect the preceding operatic tunes 113 and lead sound passage 114 with extraneous, the preceding operatic tunes 113 collectively forms institute with the sound passage 114 of leading The ante-chamber 110 of loudspeaker enclosure 100 is stated, the ante-chamber 110 is by outside sound conduction caused by the vibrating diaphragm 121 to the housing 11.
The position that the ante-chamber 110 is corresponded on the upper lid 111 is provided with the through hole 1111 for running through upper lid 111, the upper lid 111 are additionally provided with groove 1112 at the through hole 1111, and the loudspeaker enclosure 100 also includes being connected and covering with the upper lid 111 The elastic cover plate 13 of the through hole 1111 is covered, the elastic cover plate 13 is fixedly connected the through hole 1111 with the upper lid 111 Sealing, the elastic cover plate 13 include sheet metal 131 and stacking located at the elastomeric layer 132 of the sheet metal 131, the bullet Property cover plate 13 be housed in the groove 1112 and set with the flush with outer surface of the upper lid 111.Preferably, the through hole 1111 are set with the face of loudspeaker monomer 12, and certainly, the through hole 1111, which can also be arranged at, described leads sound passage 114 Position.
Rigid walls in correlation technique are replaced by the elastic cover plate 13 in the present invention, and the elastic cover plate 13 Elastomeric layer 132, which can increase, damps and reduces overall Young's modulus, and the elastic cover plate 13 has a resonant frequency, By designing, when the resonant frequency of the elastic cover plate 13 is adjusted into a certain frequency, near resonant frequency, the elastomeric cap Plate 13 can produce stronger vibration, in 100 sounding of loudspeaker enclosure, when loudspeaker monomer 12 vibrates, make in ante-chamber 110 Air compression produces energy, and energy driving elastic cover plate 13 vibrates, so as to consume the energy in ante-chamber 110, elastic cover plate 13 Preferably vibrate at the resonant frequency fx, now oscillation intensity reaches maximum, so as to consume more energy;And then absorb The purpose of energy near assigned frequency;Can be by medium in the ante-chamber 110 in addition, substituting rigid walls by the elastic cover plate 13 Density is passed to outside the ante-chamber 110, and then is reduced the covibration of the loudspeaker enclosure 100 and improved distortion.
Especially by the entirety to the elastic cover plate 13 or part material, area, shape and thickness be designed with Realize above-mentioned purpose.The elastomeric layer 132 is preferably Thermoplastic polyurethane elastomer material (TPU), methyl cyclopentene alcohol One kind in ketone (MCP) or silica gel, the elastomeric layer 132 are formed at the sheet metal 131, or bonding by spraying coating process It is fixed on the sheet metal 131.The elastic cover plate 13 forms a fixed connection to form the part of ante-chamber 110 with the upper lid 111 Structure, the energy near the resonance peak of the ante-chamber 110 of the loudspeaker enclosure 100 is absorbed, reaching reduces resonance peak, improves and lose Very, the purpose of the acoustical behavior of the loudspeaker enclosure 100 is improved.The resonant frequency range that elastic cover plate 13 can absorb as needed It is designed adjustment.Specific resonant frequency is the resonant frequency range that the needs set absorb.
Loudspeaker enclosure 100 provided by the invention is subjected to elastic cover plate amplitude measurement.Referring to Fig. 4, provided for the present invention Loudspeaker enclosure in elastic cover plate amplitude measurement result, wherein curve a represent elastic cover plate amplitude maximum, curve b represent Elastic cover plate amplitude minimums.Elastic cover plate resonant frequency is 3000-7000Hz in the present embodiment it can be seen from accompanying drawing 4, Stronger vibration can be produced near elastic cover plate resonant frequency.
Loudspeaker enclosure provided by the invention loudspeaker enclosure corresponding with using rigid walls in correlation technique is subjected to performance pair Than test, the performance datas such as resonance peak and the distortion spike of the loudspeaker enclosure are detected.Fig. 5, Fig. 6 are referred to, wherein Fig. 5 is this The resonance peak contrast curve of the loudspeaker enclosure provided loudspeaker enclosure corresponding with using rigid walls in correlation technique is provided;Fig. 6 For loudspeaker enclosure provided by the invention loudspeaker enclosure distortion spike contrast curve corresponding with using rigid walls in correlation technique. Curve c represents to use the resonance peak curve of loudspeaker enclosure corresponding to rigid walls in correlation technique in accompanying drawing 5, and curve d represents this hair The resonance peak curve of the loudspeaker enclosure of bright offer;Curve e represents to use loudspeaker corresponding to rigid walls in correlation technique in accompanying drawing 6 The distortion spiked profiles of case, curve f represent the distortion spiked profiles of loudspeaker enclosure provided by the invention.
By accompanying drawing 5, Fig. 6 data it can be seen from using the loudspeaker enclosure of elastic cover plate compared to being used in correlation technique The loudspeaker enclosure of rigid walls, its resonance peak substantially reduce;And distortion spike equally substantially reduces.
Compared with correlation technique, loudspeaker enclosure beneficial effect provided by the invention is:The housing is included described in correspondence The through hole that preceding cavity region is formed, the loudspeaker enclosure also include being connected with the housing and covering the elastic cover plate of the through hole, For absorbing the energy of the vibration under particular resonant frequency, so as to weaken the resonance effect of the loudspeaker enclosure and reduce its mistake Very, and then the acoustical behavior of the loudspeaker enclosure is improved.
Above-described is only embodiments of the present invention, it should be noted here that for one of ordinary skill in the art For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to the protection model of the present invention Enclose.

Claims (6)

1. a kind of loudspeaker enclosure, including housing and the loudspeaker monomer that is contained in the housing, the loudspeaker monomer include For the vibrating diaphragm of vibration sounding, the vibrating diaphragm is arranged at intervals to form the preceding operatic tunes with the housing, and the loudspeaker enclosure also includes connecting Lead to the preceding operatic tunes and lead sound passage with extraneous, the preceding operatic tunes is led before sound passage collectively forms the loudspeaker enclosure with described Chamber, it is characterised in that the position that the ante-chamber is corresponded on the housing is provided with the through hole for running through housing, and the loudspeaker enclosure also wraps The elastic cover plate for being used to absorb the energy of the vibration under particular resonant frequency that the through hole is connected and covered with the housing is included, The elastic cover plate includes the elastomeric layer of sheet metal and stacking located at the sheet metal.
2. loudspeaker enclosure according to claim 1, it is characterised in that the through hole is set with the loudspeaker monomer face Put.
3. loudspeaker enclosure according to claim 1, it is characterised in that the elastomeric layer is formed at by spraying coating process The sheet metal.
4. loudspeaker enclosure according to claim 1, it is characterised in that the elastomeric layer is bonded and fixed to the metal Piece.
5. loudspeaker enclosure according to claim 1, it is characterised in that the elastomeric layer is thermoplastic polyurethane elastic One kind in body, methyl cyclopentenyl ketone or silica gel.
6. loudspeaker enclosure according to any one of claim 1 to 5, it is characterised in that the elastic cover plate absorbs resonance Frequency is the energy of 3000~7000Hz vibration.
CN201710536963.7A 2017-07-04 2017-07-04 Loudspeaker box Active CN107690106B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710536963.7A CN107690106B (en) 2017-07-04 2017-07-04 Loudspeaker box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710536963.7A CN107690106B (en) 2017-07-04 2017-07-04 Loudspeaker box

Publications (2)

Publication Number Publication Date
CN107690106A true CN107690106A (en) 2018-02-13
CN107690106B CN107690106B (en) 2020-02-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108712693A (en) * 2018-03-26 2018-10-26 广东欧珀移动通信有限公司 Housing unit and electronic equipment with it
WO2020258150A1 (en) * 2019-06-27 2020-12-30 瑞声声学科技(深圳)有限公司 Electronic device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203590383U (en) * 2013-09-12 2014-05-07 歌尔声学股份有限公司 Loudspeaker module
US20150063595A1 (en) * 2013-08-29 2015-03-05 Nokia Corporation Speaker apparatus
CN204231652U (en) * 2014-12-15 2015-03-25 歌尔声学股份有限公司 A kind of loud speaker module
CN204350291U (en) * 2015-02-03 2015-05-20 歌尔声学股份有限公司 Loud speaker module
CN204733358U (en) * 2015-07-01 2015-10-28 歌尔声学股份有限公司 Microspeaker
CN205195972U (en) * 2015-10-21 2016-04-27 歌尔声学股份有限公司 Loudspeaker module group
CN205847524U (en) * 2016-07-20 2016-12-28 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN206061094U (en) * 2016-07-20 2017-03-29 瑞声科技(新加坡)有限公司 Loudspeaker enclosure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150063595A1 (en) * 2013-08-29 2015-03-05 Nokia Corporation Speaker apparatus
CN203590383U (en) * 2013-09-12 2014-05-07 歌尔声学股份有限公司 Loudspeaker module
CN204231652U (en) * 2014-12-15 2015-03-25 歌尔声学股份有限公司 A kind of loud speaker module
CN204350291U (en) * 2015-02-03 2015-05-20 歌尔声学股份有限公司 Loud speaker module
CN204733358U (en) * 2015-07-01 2015-10-28 歌尔声学股份有限公司 Microspeaker
CN205195972U (en) * 2015-10-21 2016-04-27 歌尔声学股份有限公司 Loudspeaker module group
CN205847524U (en) * 2016-07-20 2016-12-28 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN206061094U (en) * 2016-07-20 2017-03-29 瑞声科技(新加坡)有限公司 Loudspeaker enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108712693A (en) * 2018-03-26 2018-10-26 广东欧珀移动通信有限公司 Housing unit and electronic equipment with it
WO2020258150A1 (en) * 2019-06-27 2020-12-30 瑞声声学科技(深圳)有限公司 Electronic device

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