CN207968929U - Loudspeaker enclosure - Google Patents

Loudspeaker enclosure Download PDF

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Publication number
CN207968929U
CN207968929U CN201820191699.8U CN201820191699U CN207968929U CN 207968929 U CN207968929 U CN 207968929U CN 201820191699 U CN201820191699 U CN 201820191699U CN 207968929 U CN207968929 U CN 207968929U
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CN
China
Prior art keywords
cover
loudspeaker enclosure
cover board
loudspeaker
resonant
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.)
Active
Application number
CN201820191699.8U
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Chinese (zh)
Inventor
张宁
时阳
任悦
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
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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.)
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Publication date
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Priority to CN201820191699.8U priority Critical patent/CN207968929U/en
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Abstract

The utility model provides a kind of loudspeaker enclosure.The loudspeaker enclosure includes upper cover, lower cover and loudspeaker monomer, the loudspeaker enclosure further includes the two-sided foam rubber for being covered on the cover board of the upper cover side and being located between the cover board and the upper cover, the cover board and the two-sided foam rubber form resonant structure, and the resonant structure is used to absorb the energy of the vibration under particular resonant frequency.The position that loudspeaker enclosure provided by the utility model corresponds to ante-chamber in upper cover opens up the through-hole through the upper cover, and the through-hole is covered using cover board made of pmma material, and the two-sided foam rubber of sandwiched between upper cover and cover board, cover board forms resonant structure with the foaming foam base in two-sided foam rubber, the resonant frequency of the resonant structure is equal to the high-frequency resonant frequency of the original moulding of loudspeaker enclosure, the high frequency distortion of loudspeaker enclosure can be effectively improved, improve the acoustical behavior of loudspeaker enclosure, and, the stable structure of the loudspeaker enclosure, it is highly reliable.

Description

Loudspeaker enclosure
【Technical field】
The utility model is related to acoustic-electric field more particularly to a kind of loudspeaker enclosures.
【Background technology】
With the fast development of science and technology, the popularity rate of audio frequency apparatus is higher and higher, high in numerous recreation and amusement modes The music enjoyment of quality is slowly popularized in crowd, and therefore, the loudspeaker enclosure for playing audio is widely applied intelligence till now In mobile device.
Since the effect of loudspeaker enclosure is the conversion for realizing electric signal to voice signal, the acoustics of loudspeaker enclosure It can be particularly important with reliability.In the loudspeaker enclosure of the relevant technologies, the loudspeaker enclosure includes upper cover, assembles shape with the upper cover Lower cover at receiving space and the loudspeaker monomer that is contained in the receiving space, upper cover adopt homogenous material system with lower cover At playing sound (especially labiodental) using the loudspeaker enclosure of this kind of structure, be susceptible to high frequency distortion, this phenomenon is in side It becomes apparent in sounding loudspeaker case, strong influence usage experience.
Therefore, it is necessary to provide a kind of new loudspeaker enclosure solution above-mentioned technical problem.
【Invention content】
The purpose of this utility model is to provide a kind of good loudspeaker enclosures of acoustical behavior.
In order to achieve the above object, the utility model provides a kind of loudspeaker enclosure, including upper cover and the upper cover assemble shape Lower cover at receiving space and the loudspeaker monomer that is contained in the receiving space, the loudspeaker monomer includes for shaking The vibrating diaphragm of dynamic sounding, the vibrating diaphragm are arranged to form the preceding operatic tunes with the upper cover relative spacing, and the loudspeaker enclosure further includes connection The preceding operatic tunes and it is extraneous lead sound channel, the preceding operatic tunes and described lead before sound channel collectively forms the loudspeaker enclosure Chamber, the position that the upper cover corresponds to the ante-chamber are equipped with the through-hole for running through the upper cover, and the loudspeaker enclosure further includes being covered on Side of the upper cover far from the loudspeaker monomer and cover the cover board of the through-hole and be located in the cover board with it is described The two-sided foam rubber being fixedly connected between upper cover and with the cover board and the upper cover, the cover board and the two-sided foam rubber group At resonant structure, the resonant structure is used to absorb the energy of the vibration under particular resonant frequency, the Young's modulus of the cover board Less than the Young's modulus of the upper cover.
Preferably, the cover board is made of pmma material.
Preferably, the thickness of the cover board is 0.2~1.0mm.
Preferably, the thickness of the cover board is 0.5mm.
Preferably, the two-sided foam rubber includes foaming foam base and the glue for being pasted on the foaming foam base both sides Stick, the foaming foam base be selected from ethylene-vinyl acetate copolymer foam, polyethylene foam, polyurethanes foam, One or more of acryl foam and foaming polypropylene occurred frequently.
Preferably, the upper cover includes roof, from the roof to the side wall extended far from the roof direction and from institute The wall extension that side wall extends towards the through-hole is stated, the two-sided foam rubber is located between the wall extension and the cover board.
Preferably, the loudspeaker enclosure further includes the outlet sound mouth set on the side wall, and the outlet sound mouth and the sound of leading lead to Road is connected to.
Preferably, the extension that the cover board includes the main part of loudspeaker monomer described in face, extends from the main part Portion and fixed part around the main part and the extension, the two-sided foam rubber are located in the wall extension and described solid Between determining portion, the main part and the vibrating diaphragm surround the preceding operatic tunes, and the extension and the side wall, which surround, described leads sound Channel.
Preferably, the particular resonant frequency is 3000~4000Hz.
Compared with the relevant technologies, the position that loudspeaker enclosure provided by the utility model corresponds to the ante-chamber in upper cover opens up and passes through The through-hole of the upper cover is worn, and the through-hole is covered using cover board made of pmma material, and between upper cover and cover board The two-sided foam rubber of sandwiched, cover board form resonant structure with the foaming foam base in two-sided foam rubber, and the resonant structure is total to Vibration frequency is equal to the high-frequency resonant frequency of the original moulding of loudspeaker enclosure, can be effectively improved the high frequency distortion of loudspeaker enclosure, raising is raised The acoustical behavior of sound device case, moreover, the stable structure of the loudspeaker enclosure, highly reliable.
【Description of the drawings】
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Other attached drawings are obtained, wherein:
Fig. 1 is the three-dimensional structure diagram of loudspeaker enclosure provided by the utility model;
Fig. 2 is the stereochemical structure decomposing schematic representation of loudspeaker enclosure shown in FIG. 1;
Fig. 3 is sectional view of the loudspeaker enclosure shown in FIG. 1 along line A-A;
Fig. 4 is the frequency response curve figure of the loudspeaker enclosure and loudspeaker enclosure in the related technology of the utility model.
Fig. 5 is the total harmonic distortion curve graph of the loudspeaker enclosure and loudspeaker enclosure in the related technology of the utility model.
【Specific implementation mode】
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The all other embodiment obtained, shall fall within the protection scope of the present invention.
Please refer to Fig. 1 to Fig. 5, the utility model provides a kind of loudspeaker enclosure 100 comprising upper cover 1, with it is described on Lid 1 assembles the lower cover 2 to form receiving space, the loudspeaker monomer 3 being contained in the receiving space, the upper cover 1 and described Ante-chamber 4 that loudspeaker monomer 3 surrounds, the back cavity 5 being oppositely arranged with the ante-chamber 4, the cover board 6 for being covered on the upper cover 1 and The two-sided foam rubber 7 being located between the upper cover 1 and the cover board 6.
The upper cover 1 includes roof 11 far from the loudspeaker monomer 3, through the through-hole 12 of the roof 11, from institute Roof 11 is stated to the side wall 13 extended far from the bending of 11 direction of the roof, prolonging of extending from the side wall 13 to the through-hole 12 Stretch wall 14 and set on the side wall 13 and the outlet sound mouth 15 that is connected to the ante-chamber 5.Specifically, the through-hole 12 with it is described before 4 face of chamber is arranged, and the wall extension 14 forms step-like structure with the side wall 13, described to speak for carrying the cover board 6 Mouth 15 by sound for being transferred to the external world.
The lower cover 2 assembles to form receiving space with the upper cover 1, and supports the loudspeaker monomer 3 comprising receiving Slot 20, the loudspeaker monomer 3 are set in the container 20.
The loudspeaker monomer 3 is used to the electric signal received being converted to acoustical signal comprising vibrating diaphragm 31.Specifically, The vibrating diaphragm 31 is used for vibration sounding.
The ante-chamber 4 and the back cavity 5 are separated the receiving space shape of the loudspeaker enclosure 100 by the loudspeaker monomer 3 At.The ante-chamber 4 includes the preceding operatic tunes 41 that the vibrating diaphragm 31 and upper cover 1 surround and the connection preceding operatic tunes 41 and the outlet sound mouth 15 lead sound channel 42.The sound channel 42 of leading takes shape in the upper cover 1, is used to form side vocal structure.The back cavity 5 is used In preventing low-frequency sound short-circuit, low-frequency sound is made more to have dynamics.
The lid of the cover board 6 is connected to side of the upper cover 1 far from the loudspeaker monomer 3 and covers the through-hole 12, institute The Young's modulus for stating cover board 6 is less than the Young's modulus of the upper cover 1.Further, the cover board 6 is by pmma material system At thickness is 0.2~1.0mm, it is preferred that the thickness of the cover board 6 is 0.5mm.Moreover, pmma material has preferably Chemical stability, mechanical property and weatherability, and there is easy dyeing, the advantages that easy processing, attractive appearance, strengthen described Loudspeaker enclosure 100 whole mechanical performance and stability.
The cover board 6 includes the main part 61 of loudspeaker monomer 3 described in face, from the main part 61 to far from the receipts Hold the extension 62 that direction in space extends and the fixed part 63 around the main part 61 and the extension 62.The main part 61, the extension 62 and the fixed part 63 are integrally formed.Further, the main part 61 and the vibrating diaphragm 31 surround institute The operatic tunes 41 before stating, the extension 62 and the side wall 13 lead sound channel 42 described in surrounding.
The both sides of the two-sided foam rubber 7 are glued with the cover board 6 and the upper cover 1 respectively and the two-sided foam rubber 7 Shape and the cross-sectional shape of the wall extension 14 match, specifically, the two-sided foam rubber 7 is located in the wall extension Between 14 and the fixed part 63.The two-sided foam rubber 7 is including foaming foam base material and is pasted on the foaming foam base The adhesive of both sides, the foaming foam base are selected from ethylene-vinyl acetate copolymer foam, polyethylene foam, poly- amino first One or more of acid esters foam, acryl foam and foaming polypropylene occurred frequently.
The two-sided foam rubber 7 have adhesion strength is strong, retentivity is good, antiultraviolet, temperature tolerance, water resistance, resistance to dissolubility and Can anti-plasticity the characteristics of, further enhance the cover board 6 install when stability.
The cover board 6 has the characteristics that density is small, Young's modulus is small, can be with the hair in the two-sided foam rubber 7 Bubble cotton base material forms resonant structure, and there are particular resonant frequencies for the resonant structure, when near the particular resonant frequency, The resonant structure will produce stronger vibration, and the central point amplitude of the resonant structure can reach 0.2mm, to more The energy in the ante-chamber 4 is consumed, achievees the purpose that absorb specific frequency energy nearby.By adjusting the cover board 6 Size can make the particular resonant frequency be equal to the high-frequency resonant frequency of the original moulding of loudspeaker enclosure, and then described in reduction Covibration of the loudspeaker enclosure 100 in high frequency, improves the high frequency distortion of the loud speaker 100.In the present embodiment, the spy It is 3000~4000Hz to determine resonant frequency.
Referring to Fig. 4, wherein curve I is the frequency response curve of the loudspeaker enclosure 100 of the utility model, curve II is related skill The frequency response curve of loudspeaker enclosure in art.It can be seen that the resonance peak of the loudspeaker enclosure 100 of the utility model is substantially reduced, you can drop Hyporesonance scene.
Referring to Fig. 5, wherein curve III is the total harmonic distortion curve of the loudspeaker enclosure 100 of the utility model, curve IV For the total harmonic distortion curve of loudspeaker enclosure in the related technology.It can be seen that the distortion point of the loudspeaker enclosure 100 of the utility model Peak is substantially reduced, you can improves distortion.
Compared with the relevant technologies, loudspeaker enclosure 100 provided by the utility model corresponds to the position of the ante-chamber 4 in upper cover 1 The through-hole 12 through the upper cover 1 is opened up, and the through-hole 12 is covered using cover board 6 made of pmma material, and upper The two-sided foam rubber 7 of sandwiched between lid 1 and cover board 6, cover board 6 form resonant structure with the foaming foam base in two-sided foam rubber 7, The resonant frequency of the resonant structure is equal to the high-frequency resonant frequency of the original moulding of loudspeaker enclosure, can be effectively improved loudspeaker enclosure 100 high frequency distortion improves the acoustical behavior of loudspeaker enclosure 100, moreover, the stable structure of the loudspeaker enclosure 100, reliability By force.
Above-described is only the embodiment of the utility model, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to this practicality Novel protection domain.

Claims (9)

1. a kind of loudspeaker enclosure, including upper cover and the upper cover assemble the lower cover to form receiving space and are contained in the receipts Hold the loudspeaker monomer in space, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, the vibrating diaphragm and the upper cover Relative spacing is arranged to form the preceding operatic tunes, the loudspeaker enclosure further include the connection preceding operatic tunes and it is extraneous lead sound channel, it is described The preceding operatic tunes and the ante-chamber led sound channel and collectively form the loudspeaker enclosure, the position that the upper cover corresponds to the ante-chamber is equipped with Through the through-hole of the upper cover, which is characterized in that the loudspeaker enclosure further includes being covered on the upper cover far from the loud speaker The side of monomer and cover the cover board of the through-hole and be located between the cover board and the upper cover and with the cover board and The two-sided foam rubber that the upper cover is fixedly connected, the cover board and the two-sided foam rubber form resonant structure, the resonance knot Structure is used to absorb the energy of the vibration under particular resonant frequency, and the Young's modulus of the cover board is less than the Young mould of the upper cover Amount.
2. loudspeaker enclosure according to claim 1, which is characterized in that the cover board is made of pmma material.
3. loudspeaker enclosure according to claim 1, which is characterized in that the thickness of the cover board is 0.2~1.0mm.
4. loudspeaker enclosure according to claim 3, which is characterized in that the thickness of the cover board is 0.5mm.
5. loudspeaker enclosure according to claim 1, which is characterized in that the two-sided foam rubber include foaming foam base and It is pasted on the adhesive of the foaming foam base both sides, the foaming foam base steeps selected from ethylene-vinyl acetate copolymer One or more of cotton, polyethylene foam, polyurethanes foam, acryl foam and foaming polypropylene occurred frequently.
6. loudspeaker enclosure according to claim 1, which is characterized in that the upper cover includes roof, from the roof to remote The side wall extended from the roof direction and the wall extension extended from the side wall towards the through-hole, the two-sided foam rubber folder Between the wall extension and the cover board.
7. loudspeaker enclosure according to claim 6, which is characterized in that the loudspeaker enclosure further includes being set to the side wall Outlet sound mouth, the outlet sound mouth are connected to the sound channel of leading.
8. loudspeaker enclosure according to claim 6, which is characterized in that the cover board includes loudspeaker monomer described in face Main part, the extension extended from the main part and the fixed part around the main part and the extension, it is described two-sided Foam rubber is located between the wall extension and the fixed part, and the main part and the vibrating diaphragm surround the preceding operatic tunes, institute It states extension and the side wall surrounds and described leads sound channel.
9. loudspeaker enclosure according to claim 1, which is characterized in that the particular resonant frequency is 3000~4000Hz.
CN201820191699.8U 2018-02-02 2018-02-02 Loudspeaker enclosure Active CN207968929U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820191699.8U CN207968929U (en) 2018-02-02 2018-02-02 Loudspeaker enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820191699.8U CN207968929U (en) 2018-02-02 2018-02-02 Loudspeaker enclosure

Publications (1)

Publication Number Publication Date
CN207968929U true CN207968929U (en) 2018-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820191699.8U Active CN207968929U (en) 2018-02-02 2018-02-02 Loudspeaker enclosure

Country Status (1)

Country Link
CN (1) CN207968929U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110856088A (en) * 2019-12-03 2020-02-28 瑞声科技(新加坡)有限公司 Loudspeaker and assembling method thereof
WO2021114016A1 (en) * 2019-12-09 2021-06-17 瑞声声学科技(深圳)有限公司 Speaker and speaker assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110856088A (en) * 2019-12-03 2020-02-28 瑞声科技(新加坡)有限公司 Loudspeaker and assembling method thereof
WO2021114016A1 (en) * 2019-12-09 2021-06-17 瑞声声学科技(深圳)有限公司 Speaker and speaker assembly

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