CN206596185U - A kind of headphone acoustic cavity body structure - Google Patents
A kind of headphone acoustic cavity body structure Download PDFInfo
- Publication number
- CN206596185U CN206596185U CN201720384568.7U CN201720384568U CN206596185U CN 206596185 U CN206596185 U CN 206596185U CN 201720384568 U CN201720384568 U CN 201720384568U CN 206596185 U CN206596185 U CN 206596185U
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- CN
- China
- Prior art keywords
- loudspeaker
- passage
- body structure
- disc
- cavity body
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Abstract
The utility model provides a kind of headphone acoustic cavity body structure, including disc, loudspeaker and rear shell, the loudspeaker be arranged at disc and rear hull shape into cavity in, also include middle part tuning chamber, the middle part tuning chamber surrounds the side periphery for being arranged at loudspeaker, includes the passage of regulation middle part tuning intracavitary Air permenbility.By setting middle part tuning chamber, a small volume chamber is formed on the periphery of loudspeaker, and by adjusting the air damping of passage, it is highly effective different frequency range sound to be strengthened or weak adjustment, this earphone extremely can easily adjust 20 4000Hz frequency range, and it is important that reduce setting low-frequency filter and balanced device this part electronic circuit for earphone, more simplified adjustment mode is brought to headphones sound design.The problem of other manners such as Matching and modification electronic circuit or loudspeaker can not adjust multiple frequency ranges is solved, the utility model can allow designer to have wider range of material and size selection to each part.
Description
Technical field
The utility model is related to Headphone structure design field, more particularly to a kind of headphone acoustic cavity body structure.
Background technology
Traditional earphone cavity, it is impossible to targetedly adjust different frequency range sensitivity, and need to carry out precision with loudspeaker
Matching.It adjusts poor sensitivity, and adjustment difficulty is big, requires higher earphone for tonequality, is only capable of by loudspeaker and electronic circuit
It is adjusted etc. other accessories, it is difficult to possess comprehensive adaptability；And design in spare and accessory parts range of choice it is narrow, cost input
Height, is unfavorable for development.
Utility model content
The utility model aims to solve the problem that above mentioned problem, and providing one kind can enter without electronic circuit to different frequency range sound
The headphone acoustic cavity body structure of row adjustment.
To solve the above problems, the utility model provide a kind of headphone acoustic cavity body structure, including disc, loudspeaker and after
Shell, the loudspeaker be arranged at disc and rear hull shape into cavity in, in addition to middle part tuning chamber, the middle part tuning chamber is surrounded and set
The side periphery of loudspeaker is placed in, includes the passage of regulation middle part tuning intracavitary Air permenbility.
By setting middle part tuning chamber, a small volume chamber is formed on the periphery of loudspeaker, and by adjusting passage
Air damping, the adjustment for being strengthened or being decayed so as to the different frequency range to headphones sound.
It is preferred that, the cavity volume of the middle part tuning chamber is 1.5~3.5 times of loudspeaker volume.The conjunction of middle part tuning chamber
Volume is managed, makes passage Air permenbility controllable.Effectively adjust earphone frequency response curve.
It is further preferred that the cavity volume of the middle part tuning chamber is 2~3 times of loudspeaker volume.It is used as what is more optimized
Middle part tuning chamber volume, further strengthens the sensitivity of frequency range adjustment.
It is preferred that, the middle part tuning chamber is provided with loudspeaker positioning hole.By loudspeaker positioning hole, can make middle part tuning chamber and
Loudspeaker are located by connecting, and loudspeaker back is exposed from the position of positioning hole, so as to form gas-permeable channels with passage.
It is preferred that, the passage includes the first passage being arranged on the tuning chamber of middle part and be arranged on disc the
Two passages.Passage is opened up on the side of middle part tuning chamber and disc so that sound loop is easier to adjustment.
It is further preferred that being equipped with tuning material on first passage and the second passage.Pass through tuning material
Change the air damping of passage, so as to effectively adjust multiple frequency ranges.
It is further preferred that first passage is arranged at the side that middle part tuning chamber is contacted with rear shell.Pass through tuning
Density of material changes, and is equivalent to the change of lumen volume, and throughput reduces herein, then lumen volume reducing, herein throughput increase,
Then lumen volume increase.
It is further preferred that second passage is arranged on the disc of correspondence loudspeaker both sides.It is close by tuning material
Degree change, is equivalent to ante-chamber（The space that ear is contacted with earphone）Volume change, herein throughput reduce, then ante-chamber volume subtracts
It is few, throughput increase herein, then ante-chamber volume increase.
It is preferred that, the junction of the middle part tuning chamber and disc is provided with packing ring, and is connected by screw locking, it is described after
Shell and disc clamping simultaneously pass through screw locking.Tuning chamber in middle part is fitted close with disc, rear shell, and now the loudspeaker back side is sent out in auricular concha
The anti-phase sound wave gone out is completely cut off by middle part tuning chamber.More preferably pure sense of hearing can be obtained.
It is preferred that, the compressed part for strengthening that middle part tuning chamber and disc are combined is additionally provided with the rear shell.In further strengthening
The sealing that tuning chamber in portion's is connected with disc, so that sound is purer.
Compared with prior art, the utility model has the following advantages that：
The utility model provides a kind of headphone acoustic cavity body structure, by setting middle part tuning chamber, in the periphery shape of loudspeaker
It is highly effective that different frequency range sound is strengthened into a small volume chamber, and by adjusting the air damping of passage
Or weak adjustment, this earphone extremely can easily adjust 20-4000Hz frequency range, and it is important that earphone is reduced
Low-frequency filter and balanced device this part electronic circuit are set, more simplified adjustment mode is brought to headphones sound design.Solution
The problem of other manners such as Matching and modification electronic circuit or loudspeaker of having determined can not adjust multiple frequency ranges, the utility model can allow
Designer has wider range of material and size selection to each part.
Brief description of the drawings
Fig. 1 is the explosive view of the utility model embodiment headphone acoustic cavity body structure.
Fig. 2 is the correspondence knot of the rear shell, middle part tuning chamber and disc of the utility model embodiment headphone acoustic cavity body structure
Structure schematic diagram.
Fig. 3 is the sectional view of the utility model embodiment headphone acoustic cavity body structure.
Fig. 4 is the middle part tuning intracavitary portion structural perspective of the utility model embodiment headphone acoustic cavity body structure.
Fig. 5 is the back cover structure stereogram of the utility model embodiment headphone acoustic cavity body structure.
Fig. 6 is the disc internal structure stereogram of the utility model embodiment headphone acoustic cavity body structure.
Fig. 7 is the disc positive structure schematic of the utility model embodiment headphone acoustic cavity body structure.
Fig. 8 is shadow of the Air permenbility to frequency response curve of the utility model embodiment headphone acoustic the first passage of cavity body structure
Ring schematic diagram.
Fig. 9 is shadow of the Air permenbility to frequency response curve of the utility model embodiment headphone acoustic the second passage of cavity body structure
Ring schematic diagram.
Wherein, 1 is disc, and 11 be the second passage, and 12 be bellmouth orifice, and 2 be loudspeaker, and 3 be rear shell, and 31 be compressed part, 32
For the 3rd passage, 4 be middle part tuning chamber, and 41 be loudspeaker positioning hole, and 42 be the first passage, and 43 be loudspeaker string holes, and 51 be the
One tuning material, 52 be the second tuning material.
Embodiment
The following example is explained further and supplemented to of the present utility model, does not constitute any limit to the utility model
System.
Headphone acoustic cavity body structure disclosed in the utility model is applied to a variety of headset types, such as In-Ear, ear suspension type
With wear-type etc., the present embodiment is the embodiment of headphone.
As Figure 1-3, a kind of headphone acoustic cavity body structure, including the rear shell and disc being fixedly connected, rear shell and disc
Fixed by buckle structure clamping and by screw locking, loudspeaker are provided with rear shell and disc, the surface of loudspeaker is exposed to disc
Outside, side periphery is surrounded by middle part tuning chamber, and middle part tuning chamber is exposed towards rear shell inner chamber in the back side.Tuning chamber in middle part surrounds loudspeaker
Side periphery is simultaneously fixedly connected with disc tight fit, and the junction of middle part tuning chamber and disc is provided with packing ring, middle part tuning chamber
It is screwed again after being engaged with disc by buckle.The cavity volume of middle part tuning chamber is 2.3 times of loudspeaker volume, is loudspeaker
The middle part tuning area of one smaller volume of offer, and by setting the first passage on middle part tuning chamber, set on disc
Put to set on the second passage, the first passage and the second adjustable sound paper is set on the first adjustable sound paper, the second passage, by changing the
The Air permenbility of one passage and the second passage, so as to reach the effect for adjusting multiple band limits respectively, adjusts Air permenbility side
Formula can be using the adjustable sound paper or the establishment net class material of different meshes that different densities are covered on the first passage and the second passage
Material.
Wherein, as shown in figure 5, rear shell is lid, middle part tuning chamber and loudspeaker is surrounded, are fixed on disc, rear shell
Inside is provided with compressed part, and compressed part compresses middle part tuning chamber to disc direction in assembling, improves integrally-built firmness
The sealing connected with middle part tuning chamber and disc.The position of the first passage of shell correspondence is provided with the 3rd passage afterwards, and first leads to
The position of stomata and the 3rd passage is the side that middle part tuning chamber and rear shell are contacted.Earphone bracket connection knot is additionally provided with shell afterwards
Provided with screw and buckle position in structure, rear shell.
As shown in figure 4, tuning chamber in middle part is provided with loudspeaker positioning hole, is positioned for loudspeaker and expose the loudspeaker back side, loudspeaker are fixed
Position hole side is additionally provided with loudspeaker string holes, and middle part tuning chamber side is contacted with rear shell, and side is not contacted with rear shell, is contacted with rear shell
Side sets the first passage, by being set in the first passage in the first tuning material, the cavity of control middle part tuning chamber
Air permenbility, as shown in figure 8, dotted line is the frequency response curve for adjusting the Air permenbility of the first passage when being minimum, solid line is adjustment the
The Air permenbility of one passage for it is maximum when frequency response curve, therefore understand, the Air permenbility adjustable 20 of the first passage of adjustment~
400Hz frequency ranges about 1~30dB, 800~2000Hz frequency ranges about 1~7dB, 2000-4000Hz frequency ranges about 1~9dB.Such as Fig. 6,7 institutes
Show, disc is provided with the second passage, then can be by changing the second tuning material thereon, as shown in figure 9, dotted line is adjustment the
The Air permenbility of two passages for it is minimum when frequency response curve, solid line is to adjust the frequency response when Air permenbility of the second passage is maximum
Curve, therefore understand, the Air permenbility of the second passage of adjustment can adjust 20~350Hz frequency ranges about 1~6dB, 400~2000Hz frequency ranges
About 1~2dB.
Headphone acoustic cavity body structure disclosed in the present application enables earphone extremely easily to adjust 20-4000Hz frequency range,
And do not need the electronic circuit such as low-frequency filter and balanced device.Above structure brings more simplified tune to headphones sound design
Perfect square formula.Especially when other manner can not be adjusted, this scheme can allow designer to have wider range of material to each part
With size selection.
It is wherein specific implementation of the present utility model above, therefore it describes more specific and detailed, but can not be
And it is interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the concept of the premise utility, various modifications and improvements can be made, these obviously replace shape
Formula belongs to protection domain of the present utility model.
Claims (10)
1. a kind of headphone acoustic cavity body structure, including disc（1）, loudspeaker（2）With rear shell（3）, the loudspeaker（2）It is arranged at disc
（1）With rear shell（3）In the cavity of formation, it is characterised in that：Also include middle part tuning chamber（4）, the middle part tuning chamber（4）Surround
It is arranged at loudspeaker（2）Side periphery, in addition to regulation middle part tuning chamber（4）The passage of interior Air permenbility.
2. headphone acoustic cavity body structure according to claim 1, it is characterised in that：The middle part tuning chamber（4）Cavity
Volume is 1.5~3.5 times of loudspeaker volume.
3. headphone acoustic cavity body structure according to claim 2, it is characterised in that：The middle part tuning chamber（4）Cavity
Volume is 2~3 times of loudspeaker volume.
4. headphone acoustic cavity body structure according to claim 1, it is characterised in that：The middle part tuning chamber（4）It is provided with
Loudspeaker positioning hole（41）.
5. headphone acoustic cavity body structure according to claim 1, it is characterised in that：The passage includes being arranged at middle part
Tuning chamber（4）On the first passage（42）Be arranged at disc（1）On the second passage（11）.
6. headphone acoustic cavity body structure according to claim 5, it is characterised in that：First passage（42）With second
Passage（11）On be equipped with tuning material.
7. headphone acoustic cavity body structure according to claim 5, it is characterised in that：First passage（42）It is arranged at
Middle part tuning chamber（4）With rear shell（3）The side of contact.
8. headphone acoustic cavity body structure according to claim 5, it is characterised in that：Second passage（11）It is arranged at
Correspondence loudspeaker（2）The disc of both sides（1）On.
9. headphone acoustic cavity body structure according to claim 1, it is characterised in that：The middle part tuning chamber（4）And disc
（1）Junction be provided with packing ring（12）, and connected by screw locking, the rear shell（3）With disc（1）Clamping simultaneously passes through screw
Locking.
10. headphone acoustic cavity body structure according to claim 1, it is characterised in that：The rear shell（3）Inside it is additionally provided with reinforcement
Middle part tuning chamber（4）And disc（1）With reference to compressed part（31）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720384568.7U CN206596185U (en) | 2017-04-13 | 2017-04-13 | A kind of headphone acoustic cavity body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720384568.7U CN206596185U (en) | 2017-04-13 | 2017-04-13 | A kind of headphone acoustic cavity body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206596185U true CN206596185U (en) | 2017-10-27 |
Family
ID=60120842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720384568.7U Expired - Fee Related CN206596185U (en) | 2017-04-13 | 2017-04-13 | A kind of headphone acoustic cavity body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206596185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106878854A (en) * | 2017-04-13 | 2017-06-20 | 广东得胜电子有限公司 | A kind of headphone acoustic cavity body structure |
-
2017
- 2017-04-13 CN CN201720384568.7U patent/CN206596185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106878854A (en) * | 2017-04-13 | 2017-06-20 | 广东得胜电子有限公司 | A kind of headphone acoustic cavity body structure |
| CN106878854B (en) * | 2017-04-13 | 2023-06-06 | 广东得胜电子有限公司 | Earphone acoustic cavity structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 |