CN208402076U - Ear casing and earphone - Google Patents
Ear casing and earphone Download PDFInfo
- Publication number
- CN208402076U CN208402076U CN201820898577.2U CN201820898577U CN208402076U CN 208402076 U CN208402076 U CN 208402076U CN 201820898577 U CN201820898577 U CN 201820898577U CN 208402076 U CN208402076 U CN 208402076U
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- Prior art keywords
- side plate
- shell
- partition
- guide tube
- sound guide
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Abstract
The utility model provides a kind of ear casing and earphone.The ear casing includes shell and partition, and housing interior volume is separated into ante-chamber and back cavity by partition, and ante-chamber is used to accommodate the machine core of earphone.Sound guide tube is equipped in ante-chamber, the head end of sound guide tube is equipped with the first opening, so that sound guide tube is connected in head end with ante-chamber.The tail end of sound guide tube and the shell of shell connect, and tail end is equipped with the second opening, and second is opened on the shell of shell, so that sound guide tube is in communication with the outside in tail end.Tail end is additionally provided with third opening, so that tail end is connected to ante-chamber simultaneously.Third is arranged by the tail end in sound guide tube to be open, greatly reduces the intermediate frequency degree of loss in headphones sound, improves the intermediate frequency loudness of earphone, and then guarantee the pliable of earphone sound quality, and then improve the sound quality of earphone.
Description
Technical field
The utility model relates to ear phone technology fields, more particularly to a kind of ear casing and earphone.
Background technique
In daily life, people are often needed to be listened to music using earphone, watch movie, chat.The quality of earphone sound quality can be straight
It connects and influences user's experience sense by so the quality of earphone sound quality is to evaluate the key factor and user's purchase of earphone quality
Buy major consideration when use.The intermediate-frequency section loss of existing earphone sound quality is larger, makes the suitable of the sound of earphone sending
Property is poor, reduces earphone acoustical quality.
Utility model content
The technical problem that the utility model one embodiment solves is to provide a kind of better ear casing of sound quality and ear
Machine.
The utility model provides a kind of ear casing.The ear casing
Including shell and partition, the housing interior volume is separated into ante-chamber and back cavity by the partition, and the ante-chamber is used
In the machine core of accommodating earphone；Sound guide tube is equipped in the ante-chamber, the head end of the sound guide tube is equipped with the first opening, so that described lead
Sound tube is connected in the head end with the ante-chamber；The tail end of the sound guide tube is connect with the shell of the shell, and the tail end
Equipped with the second opening, described second is opened on the shell of the shell, so that the sound guide tube is in the tail end and outside
Boundary's connection；The tail end is additionally provided with third opening, so that the sound guide tube is connected to the ante-chamber simultaneously in the tail end.
In one embodiment, the sound guide tube is arranged in a ring.
In one embodiment, the sound guide tube is located at the junction of the partition and the shell, and the sound guide tube edge
The edge of the partition is extended.
In one embodiment, first opening is located on the end face of the head end.
In one embodiment, the third opening is located on the side of the sound guide tube side opposite with the partition.
In one embodiment, the sound guide tube includes cover board, and the first side plate and the second side plate that are oppositely arranged；It is described
First side plate and second side plate extend along the length direction of the sound guide tube, and first side plate and second side plate
The plate face of the partition is convexly equipped in form leading note slot, the cover board and the partition face are arranged, and fixed take is put in described the
On the edge of side plate and second side plate, the notch of the leading note slot of capping, for being enclosed the sound guide tube.
In one embodiment, first side plate and second side plate interval at the head end are arranged, and are used to form
First opening；First side plate is connected at the tail end with second side plate, and the third opening is located at institute
It states on cover board.
In one embodiment, second side plate relative to the first side plate close to the shell of the shell, the partition with
The shell is integrally formed, and second side plate is tightly attached on the shell and is integrally formed with the shell.
In one embodiment, outer edge of first side plate backwards to the partition side is convexly equipped with rib, with described
The inward flange of side plate is in step-like arrangement, and the cover board takes the inward flange for being put in first side plate.
In one embodiment, second side backboard is convexly equipped with rib to the outer edge of partition side, with described second side
The inward flange of plate is in step-like arrangement, and the cover board takes the inward flange for being put in second side plate.
In one embodiment, second side plate is formed by the internal partial wall of the shell.
In one embodiment, the shell is located at the platform for being formed on the inner wall of the ante-chamber side and being parallel to the partition
Rank, first side plate are formed on the partition, and the inner wall interval for being located at the ante-chamber side with the shell is arranged, institute
It states cover board and is fixed on first side plate on the edge and the step of the partition.
In one embodiment, first side plate, second side plate, the partition and the shell are integrally formed.
In one embodiment, the partition is equipped with the 4th opening, for being directly connected to the ante-chamber and the back cavity.
In one embodiment, the shell includes shell main part, preceding cover and rear cover portion, the partition and the sound guide tube
In the shell main part；The opposite sides of the shell main part is in opening setting, the preceding cover and the rear cover portion
Be covered on two openings of the shell main part respectively, the partition and the preceding cover are used to form the ante-chamber, it is described every
Plate and the rear cover portion are used to form the back cavity.
The utility model additionally provides a kind of earphone, which includes any ear casing as described above.
The utility model provides a kind of ear casing.The ear casing includes shell and partition, and partition is by housing interior volume
It is separated into ante-chamber and back cavity, ante-chamber is used to accommodate the machine core of earphone；Sound guide tube is equipped in ante-chamber；The head end of sound guide tube is equipped with first
Opening, so that sound guide tube is connected in head end with ante-chamber；The tail end of sound guide tube and the shell of shell connect, and tail end is equipped with second and opens
Mouthful, second is opened on the shell of shell, so that tail end is in communication with the outside；Tail end is additionally provided with third opening, so that leading note
Pipe is connected to ante-chamber simultaneously in tail end.Third is arranged by the tail end in sound guide tube to be open, greatly reduces in headphones sound
Intermediate frequency degree of loss improves the intermediate frequency loudness of earphone, and then guarantees the pliable of earphone sound quality, and then improve the sound quality of earphone.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings the attached drawing of other embodiments.
Fig. 1 is a schematic diagram of an embodiment of the present invention earphone；
Fig. 2 is the schematic diagram of another angle of earphone shown in Fig. 1；
Fig. 3 is the schematic diagram of the shell main part of earphone shown in Fig. 1；
Fig. 4 is the schematic diagram of another angle of shell main body shown in Fig. 3；
Fig. 5 is the schematic diagram under a decomposing state of shell main body shown in Fig. 3；
Fig. 6 is that shell main body shown in Fig. 5 removes the schematic diagram after cover board；
Fig. 7 is the schematic diagram that shell main body shown in Fig. 6 removes another angle after cover board；
Fig. 8 is a sectional view of ear casing shown in Fig. 1；
Fig. 9 is that horizontal axis is frequency (unit HZ), and ordinate is the earphone curve comparison figure of loudness (unit dB), wherein
As indicated by the solid line in the figure is the curve graph of an embodiment earphone in the utility model, and dotted line is the earphone for being not provided with third opening
Curve graph.
Before 10 shell of ear casing, 100 shell main part 110 after 120 sound outlet hole of cover, 121 rear cover portion, 130 ante-chamber 140
150 partition of chamber, 200 plate face 210 the 4th opening 220 sound guide tube, 300 head end, 310 320 first side plate of tail end, 330 inner edge
331 rib of edge, 332 341 rib of bending part 333 second side plate, 340 inward flange, 342 cover board 350 first opening 360 the
Two opening 370 thirds, 380 leading note slots 390 of opening
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 8, the utility model provides a kind of ear casing 10.Including shell 100 and partition
200,100 inner space of shell is separated into ante-chamber 140 and back cavity 150 by partition 200, and ante-chamber 140 is used to accommodate the machine core of earphone；
Sound guide tube 300 is equipped in ante-chamber 140, sound guide tube 300 is between partition 200 and machine core；The head end 310 of sound guide tube 300 is equipped with
First opening 360, is connected to head end 310 with ante-chamber 140；The tail end 320 of sound guide tube 300 is connect with the shell of shell 100, and is set
There is the second opening 370, the second opening 370 is opened on the shell of shell 100, so that sound guide tube connects in 300 tail ends 320 with extraneous
It is logical；Tail end 320 is additionally provided with third opening 380, so that sound guide tube 300 is connected to ante-chamber 140 simultaneously in tail end 320.By leading
Third opening 380 is arranged in the tail end 320 of sound tube 300, greatly reduces the intermediate frequency degree of loss in headphones sound, improves in earphone
Frequency response degree, and then guarantee the pliable of earphone sound quality, and then improve the sound quality of earphone.
As shown in connection with fig. 2,100 inner space of shell is divided into two cavitys, respectively ante-chamber 140 and back cavity by partition 200
150.Shell 100 includes shell main part 110, preceding cover 120 and rear cover portion 130, and partition 200 and sound guide tube 300 are located at shell main body
In portion 110.The opposite sides of shell main part 110 is in opening setting, and preceding cover 120 and rear cover portion 130 are covered on shell master respectively
Two openings in body portion 110, partition 200, part shell main part 110 and preceding cover 120 positioned at 200 side of partition are used to form
Ante-chamber 140, partition 200, part shell main part 110 and rear cover portion 130 positioned at 200 other side of partition are used to form back cavity 150.
Two opening face settings on partition 200 and shell main part 110, shell main part 110 are located at preceding cover 120 and 130 liang of rear cover portion
Between person, sound outlet hole 121 is located in preceding cover 120, and when in use, preceding cover 120 is at least partially disposed in the ear canal of user,
Earphone transfers out sound to user's ear by sound outlet hole 121.Partition 200 is equipped with the 4th opening 220, directly connection ante-chamber
After 140 and back cavity 150, for the cabling between ante-chamber 140 and back cavity 150.
Sound guide tube 300 is equal to a channel, by being set to the first opening 360 of head end 310 and set on the second of tail end 320
Opening 370, the ante-chamber 140 in earphone 10 is connected with the external world, with the low-frequency range effect for enhancing earphone, promotes earphone
Sound quality, the sound for issuing earphone is more resistance to be listened.Third opening 380 is set by the tail end 320 in sound guide tube 300, makes leading note
The tail end 320 of pipe 300 can also be directly connected to ante-chamber 140.The head end 310 of sound guide tube 300 is connected to ante-chamber 140 at this time, is led
The tail end 320 of sound tube 300 is connected with extraneous and ante-chamber 140 simultaneously.In this way, can effectively be mentioned when earphone work makes a sound
Sound is risen in the loudness of Mid Frequency, has more the sound of earphone relatively pliable.Referring to known to Fig. 9, after opening up third opening 380
Sound is relatively higher than the loudness of Mid Frequency when being not provided with third opening 380 in the loudness of Mid Frequency, and the loudness of sound is avoided to exist
Mid Frequency rapid decrease improves the pliable of sound entirety, i.e. Mid Frequency-loudness contour of Fig. 8 is relatively smoother, makes sound more
It is plump, improve the sound quality of earphone.Wherein, solid line is the curve being open equipped with third in Fig. 8, and dotted line is to be not provided with third opening
Curve.Sound guide tube 300 is arranged in a ring.Small volume in ear casing 10, space are limited.By making sound guide tube 300 in ring
The bigger sound guide tube 300 of relative length can be arranged in earphone, further enhance the low-frequency effect of earphone for shape.
The area of third opening 380 can be determined by following formula.The formula are as follows: Wherein, fobFor the resonance frequency of 300 inner chamber body of sound guide tube, VBFor the volume of 300 inner chamber body of sound guide tube, S
For the area of third opening 380, LVFor the length of sound guide tube 300.In this way, passing through the resonance frequency for obtaining 300 inner chamber body of sound guide tube
Rate fob, 300 inner chamber body of sound guide tube volume VBAnd the length L of sound guide tube 300V, so that it may obtain the face of third opening 380
Product.
In the present embodiment, earphone is bluetooth headset.Machine core includes the elements such as voice coil, magnet, iron core, for issuing sound
Sound；Back cavity 150 is for elements such as placing batteries.In other embodiments, earphone can also be the non-bluetooth-type without battery
Earphone.
Sound guide tube 300 is located at the junction of partition 200 and shell 100, and sound guide tube 300 extends along the edge of partition 200
Setting.It can be more reasonably utilized the space in ante-chamber 140, in this way convenient for making the more compact of each component arrangement in ante-chamber 140.Its
In, the first opening 360 is located on the end face of head end 310, and third opening 380 is located at opposite with partition 200 one in sound guide tube 300
On the side of side, i.e., third opening 380 is arranged with 200 face of partition.The first opening 360 of setting and third are opened in this way
Mouth 380, can further enhance the low-frequency effect of sound guide tube 300, can also preferably promote earphone in the loudness of Mid Frequency.
In conjunction with shown in Fig. 5, Fig. 6 and Fig. 7, sound guide tube 300 includes cover board 350 and two opposite first side plates 330 and the
Two side plates 340；First side plate 330 and the second side plate 340 extend along the length direction of sound guide tube 300, and the first side plate 330 and the
Two side plates 340 are convexly equipped in the plate face 210 of partition 200 to form leading note slot 390, and cover board 350 and 200 face of partition are arranged, fixed
In on 340 edge of the first side plate 330 and the second side plate, the notch of the leading note slot 390 of capping, for being enclosed sound guide tube 300.
It is understood that.The edge of first side plate 330 and the second side plate 340 refers to that both the first side plate 330 and the second side plate 340 are backwards
The edge of the side of partition 200.
First side plate 330 and the second side plate 340 are roughly annular setting, opposite first side plate 330 of the second side plate 340
Close to the shell of shell 100, i.e. opposite first side plate 330 of the second side plate 340 is closer to the edge of partition 200.First side plate 330
Divider plate 200 between the second side plate 340 and above-mentioned both side plate, has been enclosed leading note slot 390.It is understood that
It is that the first side plate 330, the second side plate 340 and partition 200 can be integrally formed by injection molding manner, the first side plate 330, second side
Plate 340 and partition 200 can also be directly integrally formed with shell main part 110, then taken cover board 350 and are put in the first side plate 330
On the edge of the second side plate 340, cover board 350 is fixed on 330 He of the first side plate by way of splicing or ultrasonic bonding
On second side plate 340, that is, cover the notch of leading note slot 390.In this way, sound guide tube 300 passes through the first side plate 330, the second side plate
340, cover board 350 and partition 200 are enclosed sound guide tube 300 jointly.By above-mentioned setting, make the production of sound guide tube 300 more
It is convenient.Wherein, partition 200 and shell 100 are integrally formed, the second side plate 340 be tightly attached on shell 100 and with 100 one of shell
Molding.Wherein, the first side plate 330 and the second side plate 340 are separately arranged at head end 310, and interval between the two forms the
One opening 360.Third opening 380 is set on cover board 350, and the first side plate 330 is equipped with a bending part 333, direction at tail end 320
The extension of second side plate 340 is connect with the second side plate 340, i.e. the first side plate 330 is bent at tail end 320 towards the second side plate 340
And extend on the second side plate 340, so that the first side plate 330 and the second side plate 340 is linked together at tail end 320.By upper
Setting is stated, the production of sound guide tube 300 can be made simpler.Outer edge of first side plate 330 backwards to 200 side of partition is convexly equipped with
Rib 332, the inward flange 331 with the first side plate 330 is in step-like arrangement, and cover board 350 takes the inward flange for being put in the first side plate 330
331.Meanwhile second the outer edge backwards to 200 side of partition of side plate 340 be convexly equipped with rib 342, the inner edge with the second side plate 340
Edge 341 is in step-like arrangement, and cover board 350 takes the inward flange 341 for being put in the second side plate 340.In this way, when assembling sound guide tube 300,
Cover board 350 is fixed on the inward flange 341 of the first side plate 330 and the second side plate 340, the rib 332 of the first side plate 330 and
The rib 342 of two side plates 340 plays position-limiting action, prevents cover board 350 from deviating；Also make the assembly of cover board 350 more accurate simultaneously
It is convenient.In other alternate embodiments, the edge of the second side plate 340 can also be not provided with rib 342, and cover board 350 is directly with second
The inner wall of the shell 100 of 340 edge of side plate abuts against, and can equally play the role of limiting cover board 350.
In one embodiment, the internal partial wall that the second side plate 340 can also directly be multiplexed shell 100 is formed, i.e., and
Two side plates 340 are formed by the internal partial wall of shell 100, and the second side plate is regarded as to a part of shell.It is located at this time in shell 100
The step for being roughly parallel to partition 200 is formed on the inner wall of 140 side of ante-chamber, and is formed on partition 200 relative to shell 100
Inner wall interval be arranged the first side plate 330, the inner wall and divider plate 200 between the two of the first side plate 330, shell 100
Leading note slot 390 is collectively formed, and then by the way that cover board 350 is fixed on the first side plate 330 backwards to the edge of partition 200 and above-mentioned
On rank, to cover leading note slot 390.It is appreciated that the first side plate 330, partition 200 can be integrally formed with shell main part 110.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (16)
1. a kind of ear casing, which is characterized in that including shell and partition, before the housing interior volume is separated by the partition
Chamber and back cavity, the ante-chamber are used to accommodate the machine core of earphone；Sound guide tube is equipped in the ante-chamber, the head end of the sound guide tube is equipped with
First opening, so that the sound guide tube is connected in the head end with the ante-chamber；The tail end of the sound guide tube and the shell
Shell connection, and the tail end is equipped with the second opening, described second is opened on the shell of the shell, so that described lead
Sound tube is in communication with the outside in the tail end；The tail end be additionally provided with third opening so that the sound guide tube the tail end simultaneously
It is connected to the ante-chamber.
2. ear casing as described in claim 1, which is characterized in that the sound guide tube is arranged in a ring.
3. ear casing as described in claim 1, which is characterized in that the sound guide tube is located at the friendship of the partition and the shell
Place is met, and the sound guide tube is extended along the edge of the partition.
4. ear casing as claimed in claim 3, which is characterized in that first opening is located on the end face of the head end.
5. ear casing as claimed in claim 3, which is characterized in that the third opening is located at the sound guide tube and the partition
On the side of opposite side.
6. ear casing as described in any one in claim 1-5, which is characterized in that the sound guide tube includes cover board, and opposite
The first side plate and the second side plate being arranged；First side plate and second side plate prolong along the length direction of the sound guide tube
It stretches, and first side plate and second side plate are convexly equipped in the plate face of the partition to form leading note slot, the cover board and institute
The setting of partition face is stated, the cover board is fixed on the edge of first side plate and second side plate, and the described of capping is led
The notch of sound slot, for being enclosed the sound guide tube.
7. ear casing as claimed in claim 6, which is characterized in that first side plate and second side plate are in the head end
The setting of place interval is used to form first opening；First side plate is connected at the tail end with second side plate,
The third opening is located on the cover board.
8. ear casing as claimed in claim 6, which is characterized in that second side plate is relative to the first side plate close to described outer
The shell of shell, the partition and the shell are integrally formed, second side plate be tightly attached on the shell and with the shell
It is integrally formed.
9. ear casing as claimed in claim 6, which is characterized in that outer edge of first side plate backwards to the partition side
It is convexly equipped with rib, the inward flange with first side plate is in step-like arrangement, and the cover board, which is taken, is put in the interior of first side plate
Edge.
10. ear casing as claimed in claim 6, which is characterized in that the outer edge of second side backboard to the partition side is convex
Equipped with rib, the inward flange with second side plate is in step-like arrangement, and the cover board takes the inner edge for being put in second side plate
Edge.
11. ear casing as claimed in claim 6, which is characterized in that second side plate by the shell internal partial wall shape
At.
12. ear casing as claimed in claim 11, which is characterized in that the shell is located at shape on the inner wall of the ante-chamber side
At the step for being parallel to the partition, first side plate is formed on the partition, and with the shell be located at it is described before
The inner wall interval of chamber side is arranged, and the cover board is fixed on edge and the step of first side plate backwards to the partition
On.
13. ear casing as claimed in claim 6, which is characterized in that first side plate, second side plate, the partition
It is integrally formed with the shell.
14. ear casing as described in claim 1, which is characterized in that the partition is equipped with the 4th opening, for being directly connected to
The ante-chamber and the back cavity.
15. ear casing as described in claim 1, which is characterized in that the shell includes shell main part, preceding cover and rear cover
Portion, the partition and the sound guide tube are located in the shell main part；The opposite sides of the shell main part is in opening setting,
The preceding cover and the rear cover portion are covered on two openings of the shell main part respectively, and the partition and the preceding cover are used
In forming the ante-chamber, the partition and the rear cover portion are used to form the back cavity.
16. a kind of earphone, which is characterized in that the earphone includes such as the described in any item ear casings of claim 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898577.2U CN208402076U (en) | 2018-06-11 | 2018-06-11 | Ear casing and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898577.2U CN208402076U (en) | 2018-06-11 | 2018-06-11 | Ear casing and earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208402076U true CN208402076U (en) | 2019-01-18 |
Family
ID=65135305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820898577.2U Active CN208402076U (en) | 2018-06-11 | 2018-06-11 | Ear casing and earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208402076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114286221A (en) * | 2020-07-29 | 2022-04-05 | 深圳市韶音科技有限公司 | Earphone set |
-
2018
- 2018-06-11 CN CN201820898577.2U patent/CN208402076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114286221A (en) * | 2020-07-29 | 2022-04-05 | 深圳市韶音科技有限公司 | Earphone set |
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