CN201789611U - Adjustable loudspeaker box - Google Patents
Adjustable loudspeaker box Download PDFInfo
- Publication number
- CN201789611U CN201789611U CN2010205108876U CN201020510887U CN201789611U CN 201789611 U CN201789611 U CN 201789611U CN 2010205108876 U CN2010205108876 U CN 2010205108876U CN 201020510887 U CN201020510887 U CN 201020510887U CN 201789611 U CN201789611 U CN 201789611U
- Authority
- CN
- China
- Prior art keywords
- leading note
- housing
- audio amplifier
- adjustable audio
- sound
- 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
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses an adjustable loudspeaker box, which comprises a casing, at least one loudspeaker unit and a sound guide part. The loudspeaker units and the sound guide part are arranged inside the casing; a hole is arranged on the casing; a sound cavity is formed among the loudspeaker units and the casing; the sound guide part is rotatably mounted at one end of the casing; one or a plurality of sound guide holes with different diameters are arranged on the sound guide part; one end of each sound guide hole is communicated with the outside while the other end can be communicated with the sound cavity; and the hole can be closed by the sound guide part or communicated with the outside by the aid of the sound guide holes. The adjustable loudspeaker box enables the sound guide holes with different diameters to be communicated with the sound cavity by rotating the sound guide part, obtains different low-frequency sound performances by adjusting air damping inside the sound cavity, and accordingly has the advantage of capability of adjusting low frequency.
Description
Technical field
The utility model relates to a kind of audio amplifier, particularly relates to a kind of adjustable audio amplifier that can adjust low-frequency effect that has.
Background technology
Existing audio amplifier generally comprises housing, is arranged at least one loudspeaker monomer and voice guide hole on the housing.Be formed with the sound chamber between housing and the loudspeaker monomer, voice guide hole is arranged at housing one end and is communicated with the sound chamber, to reach LF-response preferably.
But, as everyone knows, the size of everyone ear, duct structure is all variant, everyone is also often different to the hobby of music, and the voice guide hole of above-mentioned existing audio amplifier is because of being fixed on the housing, not movable, the consumer can't be adjusted sound effect, be difficult to satisfy people's individual sexual demand.
The utility model content
The purpose of this utility model is to provide a kind of adjustable audio amplifier that can easily adjust low-frequency effect at above-mentioned the deficiencies in the prior art.
For achieving the above object, the utility model provides adjustable audio amplifier, comprises housing, is located at least one loudspeaker monomer and leading note spare in the housing.Offer a perforate on the housing.Form the sound chamber between loudspeaker monomer and the housing.Leading note spare rotatably is installed in housing one end, offers one or the different voice guide hole of several diameters on the leading note spare, and each voice guide hole one end is in communication with the outside the other end and then can be communicated with the sound chamber, and perforate can be in communication with the outside by the sealing of leading note spare or by voice guide hole.
As mentioned above, the adjustable audio amplifier of the utility model makes the voice guide hole of different-diameter be communicated with the sound chamber by turn leading note spare, to adjust the air damping in the audio amplifier sound chamber, thereby make the adjustable audio amplifier of the utility model that different low-frequency sound performances can be arranged, thereby have the effect that to adjust low frequency.
Description of drawings
Fig. 1 is the stereogram of the adjustable audio amplifier of the utility model, is show internal structure, and housing has been carried out partly dissecing.
Fig. 2 is the three-dimensional exploded view of adjustable audio amplifier shown in Figure 1.
Fig. 3 is the frequency response curve schematic diagram of adjustable audio amplifier shown in Figure 1 when using.
Each description of reference numerals is as follows among the figure:
The structure that spins 12 spin the tube 121
Retaining wall 122 guiding faces 123
Align bar 124 grooves 13
Leading note spare 30 base portions 31
Friction decorative pattern 311 contraposition bars 313
32 card divisions 321, Access Division
Inclined-plane 322 voice guide holes 33
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1 and Fig. 2, the adjustable audio amplifier of the utility model comprises housing 10, is located at least one loudspeaker monomer 20, leading note spare 30 and a sealing ring 40 in the housing 10.Form sound chamber 14 between housing 10 and the loudspeaker monomer 20, one or several diameter differences and one end are in communication with the outside and voice guide hole 33 that the other end can be communicated with sound chamber 14 for offering of being centrosymmetric on the leading note spare 30.Offer the perforate 11 of a circle on the housing 10, leading note spare 30 rotatably is installed in housing 10 1 ends, and when adjusting leading note spare 30, perforate 11 can be in communication with the outside by 30 sealings of leading note spare or by a voice guide hole 33 wherein.
In the present embodiment, housing 10 is one cylindric, and perforate 11 is opened on the tube diapire of housing 10, and voice guide hole 33 can be communicated with sound chamber 14 by perforate 11.Housing 10 is provided with the groove 13 of an annular in perforate 11 borders.Be equiped with sealing ring 40 in this groove 13, and a side of sealing ring 40 bears against on leading note spare 30.Housing 10 stretches out in perforate 11 and groove 13 borders and is provided with the structure 12 that spins, this structure 12 that spins comprises the spin tube 121 and the retaining wall 122 that extends to form to the inside of tube 121 barrel ends that spins of a central column, and retaining wall 122 outer ends form one to the inboard guiding face 123 that tilts of the tube 121 of spinning.The outer surface of 10 sidewalls of housing be provided with one with perforate 11 central axes align bar 124.
In the present embodiment, loudspeaker monomer 20 is installed in the other end in the housing 10.
Leading note spare 30 comprises a columned base portion 31 and by the extended columned Access Division 32 of base portion 31 1 ends, the end of Access Division 32 stretches out and forms the card division 321 of central column, and 321 terminal lateral border places, card division form the inclined-plane 322 of inclination laterally.Base portion 31 outer surfaces are provided with friction decorative pattern 311, and the frictional force the when setting of friction decorative pattern 311 can increase rotation is convenient to rotation.What further be centrosymmetric on base portion 31 outer surfaces of leading note spare 30 is provided with at least one contraposition bar 313.In the present embodiment, what be centrosymmetric is provided with three contraposition bars 313, leading note spare 30 corresponding to just wherein two contraposition bars 313 offered two voice guide holes 33 that diameter is different, corresponding to another contraposition bar 313 places wherein not offering voice guide hole 33.
During assembling, earlier sealing ring 40 is placed in the groove 13, the base portion 31 of hand-held leading note spare 30 is pushed Access Division 32 in the tube 121 that spins then, inclined-plane 322 slips over guiding face 123, thereby card division 321 rotatably is installed in the space that spin tube 121 barrels and the retaining wall 122 of the structure 12 that spins surround.Sealing ring 40 adopts flexible elastomeric material to make, its thickness is slightly larger than the degree of depth of groove 13, after in the space that barrel 121 that leading note spare 30 rotatably is installed in the structure 12 that spins and retaining wall 122 surround, one side of sealing ring 40 bears against on leading note spare 30, can prevent that thus air from revealing from the assembly clearance between housing 10 and the leading note spare 30.
See also Fig. 3, for when leading note spare 30 rotates to diverse location, the schematic diagram of the variation of the frequency curve of the adjustable audio amplifier of the utility model.As shown in the figure, the bigger voice guide hole 33 and 11 pairs of timings of perforate of diameter on rotation leading note spare 30 can cause more air mass flow variation and reach the effect that the low frequency volume just changes, and the frequency response curve of its bass is curve III demonstration among the figure; The less voice guide hole of diameter 33 and 11 pairs of timings of perforate on rotation leading note spare 30 can cause the less air changes in flow rate and reach the effect that the low frequency volume just changes, and the frequency response curve of its bass is that curve II shows among the figure; When rotating to perforate 11 and any one voice guide hole 33 not to timing, the frequency response curve of its bass is curve I demonstration among the figure.By this curve chart as seen, on the adjustable audio amplifier of the utility model leading note spare 30 is set, makes low frequency that different sound performances can be arranged.
In sum, the adjustable audio amplifier of the utility model is by turn leading note spare 30, the voice guide hole 33 of different-diameter is communicated with sound chamber 14, to adjust the air damping in the audio amplifier sound chamber 14, so can make the adjustable audio amplifier of the utility model that different low-frequency sound performances can be arranged, thereby can easily adjust low-frequency effect.
Claims (6)
1. adjustable audio amplifier, comprise housing, be located at least one loudspeaker monomer in the housing, form the sound chamber between loudspeaker monomer and the housing, it is characterized in that: this adjustable audio amplifier also comprises a leading note spare, offer a perforate on the housing, leading note spare rotatably is installed in housing one end, offers at least one voice guide hole on the leading note spare, each voice guide hole one end is in communication with the outside the other end and then can be communicated with the sound chamber, and perforate can be in communication with the outside by the sealing of leading note spare or by voice guide hole.
2. adjustable audio amplifier as claimed in claim 1 is characterized in that: can be provided with the different voice guide hole of several diameter on the described leading note spare.
3. adjustable audio amplifier as claimed in claim 2 is characterized in that: described housing is provided with the groove of an annular in the perforate border, be equiped with a sealing ring in this groove, and a side of sealing ring bears against on leading note spare.
4. adjustable audio amplifier as claimed in claim 2 is characterized in that: the outer surface of described housing is provided with one and aligns bar, and leading note spare outer surface is provided with at least one contraposition bar.
5. adjustable audio amplifier as claimed in claim 2, it is characterized in that: described housing stretches out in perforate and groove border and is provided with the structure that spins, this structure that spins comprises the spin tube and a retaining wall that the barrel end extends to form to the inside that spins of a central column, and the retaining wall outer ends forms a guiding face to the inboard inclination of tube that spins; Leading note spare comprises that a columned base portion reaches by the extended columned Access Division of base portion one end, the end of Access Division stretches out and forms the card division of central column, terminal lateral border place, card division forms the inclined-plane that tilts laterally, and the card division rotatably is installed in the space that spin a barrel and retaining wall surround.
6. adjustable audio amplifier as claimed in claim 5 is characterized in that: described base portion outer surface is provided with the friction decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205108876U CN201789611U (en) | 2010-08-20 | 2010-08-20 | Adjustable loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205108876U CN201789611U (en) | 2010-08-20 | 2010-08-20 | Adjustable loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789611U true CN201789611U (en) | 2011-04-06 |
Family
ID=43821559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205108876U Expired - Fee Related CN201789611U (en) | 2010-08-20 | 2010-08-20 | Adjustable loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789611U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833656A (en) * | 2012-09-03 | 2012-12-19 | 何朝阳 | Moving iron unit for loudspeaker |
| CN103237280A (en) * | 2013-04-24 | 2013-08-07 | 北京小米科技有限责任公司 | Method and device for adjusting sound effect, and mobile terminal |
| CN103458338A (en) * | 2013-08-09 | 2013-12-18 | 苏州百丰电子有限公司 | Acoustics device with adjustable frequency |
| CN107277703A (en) * | 2017-06-14 | 2017-10-20 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Anti- hygrechema chamber |
| CN109104677A (en) * | 2018-08-24 | 2018-12-28 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its low frequency adjustment structure |
| CN116261073A (en) * | 2023-03-06 | 2023-06-13 | 先歌国际影音股份有限公司 | Sound box intermediate frequency regulator structure |
-
2010
- 2010-08-20 CN CN2010205108876U patent/CN201789611U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833656A (en) * | 2012-09-03 | 2012-12-19 | 何朝阳 | Moving iron unit for loudspeaker |
| CN103237280A (en) * | 2013-04-24 | 2013-08-07 | 北京小米科技有限责任公司 | Method and device for adjusting sound effect, and mobile terminal |
| CN103237280B (en) * | 2013-04-24 | 2016-04-13 | 小米科技有限责任公司 | A kind of method, device and mobile terminal regulating audio |
| CN103458338A (en) * | 2013-08-09 | 2013-12-18 | 苏州百丰电子有限公司 | Acoustics device with adjustable frequency |
| CN107277703A (en) * | 2017-06-14 | 2017-10-20 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Anti- hygrechema chamber |
| CN107277703B (en) * | 2017-06-14 | 2020-06-09 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Waterproof sound cavity |
| CN109104677A (en) * | 2018-08-24 | 2018-12-28 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its low frequency adjustment structure |
| CN109104677B (en) * | 2018-08-24 | 2020-08-28 | 歌尔科技有限公司 | Audio equipment and low frequency adjusting structure thereof |
| CN116261073A (en) * | 2023-03-06 | 2023-06-13 | 先歌国际影音股份有限公司 | Sound box intermediate frequency regulator structure |
| CN116261073B (en) * | 2023-03-06 | 2024-05-03 | 先歌国际影音股份有限公司 | Sound box intermediate frequency regulator device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |