CN207968929U - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- loudspeaker enclosure
- upper cover
- cover board
- loudspeaker
- 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.)
- Expired - Fee Related
Links
- 229920001821 foam rubber Polymers 0.000 claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 23
- 239000000178 monomer Substances 0.000 claims abstract description 19
- 238000005187 foaming Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 8
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
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
【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.
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 |
Family
ID=63737117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820191699.8U Expired - Fee Related CN207968929U (en) | 2018-02-02 | 2018-02-02 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207968929U (en) |
Cited By (3)
| 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 |
| CN112399313A (en) * | 2020-10-30 | 2021-02-23 | 歌尔股份有限公司 | Sound production device |
| WO2021114016A1 (en) * | 2019-12-09 | 2021-06-17 | 瑞声声学科技(深圳)有限公司 | Speaker and speaker assembly |
-
2018
- 2018-02-02 CN CN201820191699.8U patent/CN207968929U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN112399313A (en) * | 2020-10-30 | 2021-02-23 | 歌尔股份有限公司 | Sound production device |
| CN112399313B (en) * | 2020-10-30 | 2022-09-16 | 歌尔股份有限公司 | Sounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |