CN210469684U - Fixing structure and in-ear earphone - Google Patents
Fixing structure and in-ear earphone Download PDFInfo
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- CN210469684U CN210469684U CN201921550519.1U CN201921550519U CN210469684U CN 210469684 U CN210469684 U CN 210469684U CN 201921550519 U CN201921550519 U CN 201921550519U CN 210469684 U CN210469684 U CN 210469684U
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Abstract
The utility model is suitable for an in-ear earphone field provides a fixed knot constructs and in-ear earphone, and wherein, fixed knot constructs and includes: the earphone shell is provided with an accommodating cavity and a sound outlet hole which communicates the accommodating cavity to the outside; the fastening sleeve comprises an interference fit barrel section and an external fit barrel section, and the interference fit barrel section is in interference sleeve fit with the sound outlet hole; the connecting sleeve is used for accommodating the loudspeaker, the connecting sleeve is in sleeve fit with the interference fit barrel section, and the connecting sleeve is in sleeve fit with the interference fit barrel section; the fastening sleeve deforms and extrudes the outer cylinder wall surface of the connecting sleeve when being sleeved in the sound outlet hole so as to limit the connecting sleeve to displace in the opening direction of the sound outlet hole. The utility model provides a fixed knot constructs, the assembly is simple to can reduce the degree of depth of deepening the duct when wearing and improve the travelling comfort of wearing and can improve the connection fastening nature of speaker.
Description
Technical Field
The utility model belongs to the earphone field especially relates to a fixed knot constructs and in-ear earphone.
Background
An in-ear headphone includes a headphone housing, a speaker, and other electronic components. The earphone shell comprises a shell main body and a microphone, wherein the shell main body is provided with a containing cavity used for containing electronic components such as a circuit board and the like, the microphone is provided with a downward opening, and the loudspeaker is arranged in the microphone due to the limitation of size and space. In the existing design, the microphone comprises an upper piece and a lower piece, the upper piece and the lower piece are buckled to fix the loudspeaker, and then the upper piece is connected with the shell main body in a threaded manner. Because the sizes of the microphone and the loudspeaker of the in-ear earphone are smaller, the loudspeaker has the problem of inconvenient assembly and connection.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a fixed knot constructs and in-ear earphone, it aims at solving the inconvenient problem of current speaker erection joint.
A fixing structure adapted for an in-ear headphone and for fixing a speaker, comprising:
the earphone shell is provided with an accommodating cavity and a sound outlet hole which communicates the accommodating cavity to the outside;
the fastening sleeve comprises an interference fit barrel section and an external fit barrel section which are sequentially connected from the accommodating cavity to the sound outlet hole, and the interference fit barrel section is in interference sleeve fit with the sound outlet hole;
the connecting sleeve is used for accommodating the loudspeaker, the connecting sleeve is in sleeve fit with the interference fit cylinder section, and the outer cylinder diameter of the connecting sleeve is smaller than or equal to the inner cylinder diameter of the interference fit cylinder section;
the fastening sleeve deforms and extrudes the outer cylinder wall surface of the connecting sleeve when being sleeved in the sound outlet hole so as to limit the connecting sleeve to displace in the opening direction of the sound outlet hole.
Further, the sound outlet hole comprises a first hole section and a second hole section which are sequentially arranged in the direction from the accommodating cavity to the outside, and the aperture of the first hole section is smaller than that of the second hole section;
the interference fit barrel section is in interference sleeve fit with the sound outlet hole at the second hole section;
the connecting sleeve deforms and extrudes the outer cylinder wall surface of the connecting sleeve when being sleeved in the second hole section.
Further, the interference fit barrel section is sunken to form an annular groove in the direction of the connecting sleeve on the peripheral side surface.
Further, the groove is close to the end face of the interference fit cylinder section facing the accommodating cavity.
Furthermore, the connection between the circumferential side surface of the interference fit cylinder section and the end surface facing the accommodating cavity is an arc chamfer.
Furthermore, the interference fit section of thick bamboo section is towards the outside direction in surface in holding chamber is seted up and is used for cup jointing connecting sleeve's fixed orifices, external cooperation section of thick bamboo section deviates from the inside direction in surface in holding chamber seted up with the sound conduction hole of fixed orifices intercommunication, the fixed orifices aperture is greater than the aperture of sound conduction hole.
Further, the length of the connecting sleeve is larger than the depth of the fixing hole, and the end of the connecting sleeve, which deviates from the fastening sleeve, is connected with the loudspeaker.
Further, the connecting sleeve extends from the fixing hole to the accommodating cavity.
Furthermore, the diameter of the peripheral side surface of the interference fit barrel section is gradually increased from the accommodating cavity to the outer direction.
An in-ear headphone comprising a fixing structure as described above.
The utility model discloses the in-ear earphone assembly that this embodiment provided is as follows: the tight interference fit section of thick bamboo of connecting sleeve from the top grafting of fastening sleeve that will settle the speaker, then upwards insert the play sound hole with interference fit section of thick bamboo, the assembly is simple. And because the fixed mode of cup jointing, fastening sleeve and the cup jointing of going out the sound hole that adopts connecting sleeve and fastening sleeve for the whole height of connecting sleeve, fastening sleeve can reduce, thereby the degree of depth of deepening the duct when reducing the pleasant formula earphone and wearing and improve the travelling comfort of wearing. The fastening sleeve has elasticity and takes place deformation in order to extrude the connecting sleeve when cup jointing out the sound hole to further improve the connection fastening nature between sound hole, fastening sleeve and the connecting sleeve, and then ensure the connection fastening nature of speaker.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a fixing structure according to an embodiment of the present invention
Fig. 2 is a disassembled schematic view of a fixing structure according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a fixing structure according to a first embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Earphone |
20 | Fastening |
| 11 | Containing |
21 | Interference |
| 12 | |
22 | External connection |
| 121 | |
211 | |
| 122 | |
221 | |
| 30 | Connecting sleeve |
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.
It should be noted that the terms of left, right, upper and lower directions in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, and should not be considered as limiting.
Example one
The fixing structure provided by the embodiment is suitable for an in-ear earphone and used for fixing a loudspeaker. In the conventional in-ear headphone, a headphone housing includes a housing main body having a housing chamber for housing electronic components such as a circuit board, and a microphone having a downward opening. The loudspeaker is arranged in the accommodating cavity or in the microphone. The microphone is used for transmitting sound generated by the loudspeaker to the outside. Since the in-ear earphone is small and the number of electronic components built in the earphone housing is large, especially when a battery is built in, the battery occupies most of the volume of the accommodating cavity, and secondly, the speaker is disposed in the microphone. The microphone is detachably connected to the housing main body to facilitate installation of the speaker. The microphone comprises an upper piece and a lower piece, wherein the upper piece and the lower piece are buckled to fix the loudspeaker, and then the upper piece is connected with the shell main body in a threaded manner. The sizes of the microphone and the loudspeaker of the in-ear earphone are small, and the relative number of the connecting parts is large, so that the loudspeaker is inconvenient to assemble and connect. In order to solve the problem, the embodiment provides an improvement scheme, which specifically includes:
a fixing structure as shown in fig. 1 to 3 is suitable for an in-ear earphone and for fixing a speaker. The in-ear headset may be a bluetooth headset or a general headset.
The earphone housing 10 is provided with a receiving cavity 11 and a sound outlet hole 12 for communicating the receiving cavity 11 to the outside.
The fastening sleeve 20 comprises an interference fit barrel section 21 and an external fit barrel section 22 which are sequentially connected from the accommodating cavity 11 to the sound outlet hole 12, wherein the interference fit barrel section 21 is in interference fit with the sound outlet hole 12.
The connecting sleeve 30 is used for arranging a loudspeaker, the connecting sleeve 30 is in sleeve fit with the interference fit cylinder section 21, and the outer cylinder diameter of the connecting sleeve 30 is smaller than or equal to the inner cylinder diameter of the interference fit cylinder section 21.
The fastening sleeve 20 deforms and presses the outer wall of the connecting sleeve 30 when being sleeved in the sound outlet 12, so as to limit the displacement of the connecting sleeve 30 in the opening direction of the sound outlet 12.
It should be noted that the tightening sleeve 20 is a tubular knot. The sound outlet hole 12 and the fastening sleeve 20 are coaxially arranged. In practical use, the fastening sleeve 20 is placed in the ear canal of a human body, and in order to improve wearing comfort, the axis of the sound outlet hole 12 forms an included angle with the central line of the earphone shell 10.
The in-ear headphone provided by the present embodiment is assembled as follows: the connecting sleeve 30 with the loudspeaker is inserted into the tight interference fit barrel section 21 from the upper part of the tight sleeve 20, and then the tight interference fit barrel section 21 is inserted upwards into the sound outlet hole 12. The assembly is simple. And because the connecting sleeve 30 and the fastening sleeve 20 are sleeved and the fastening sleeve 20 and the sound outlet hole 12 are sleeved and fixed, the overall height of the connecting sleeve 30 and the fastening sleeve 20 can be reduced, so that the depth of the in-ear earphone penetrating into the ear canal when being worn is reduced, and the wearing comfort is improved. The fastening sleeve 20 has elasticity and is deformed to press the connection sleeve 30 when the sound outlet hole 12 is coupled, so that the connection tightness among the sound outlet hole 12, the fastening sleeve 20 and the connection sleeve 30 is further improved, and the connection tightness of the speaker is further ensured.
The fastening sleeve 20 has elasticity at least in the interference fit cylinder section 21, so that when the fastening sleeve 20 is sleeved in the sound outlet hole 12, the interference fit cylinder section 21 deforms and presses the outer cylinder wall surface of the connecting sleeve 30 to limit the displacement of the connecting sleeve 30 in the opening direction of the sound outlet hole 12. In this embodiment, the interference fit cylinder section 21 and the external fit cylinder section 22 are integrally provided.
In the illustrated embodiment, the earphone housing 10 includes a housing body having a receiving cavity 11 and an extending pipe connected to the housing body and extending outward, and the extending pipe is hollow to form a sound outlet 12. The length of the sound outlet 12 can be set by those skilled in the art according to actual needs. As long as the fastening sleeve 20 can be fixed.
Preferably, the sound outlet hole 12 includes a first hole section 121 and a second hole section 122 sequentially arranged in an outward direction from the accommodating cavity 11, and an aperture of the first hole section 121 is smaller than an aperture of the second hole section 122;
the interference fit cylinder section 21 is in interference fit with the sound outlet hole 12 at the second hole section 122;
when the connection sleeve 30 is sleeved in the second hole section 122, the connection sleeve is deformed and presses the outer cylindrical wall surface of the connection sleeve 30.
The first hole section 121 and the second hole section 122 form a first table surface for limiting the movement of the interference fit barrel section 21 towards the accommodating cavity 11, so that the installation depth of the interference fit barrel section 21 is limited, and the interference fit barrel section 21 and the loudspeaker are prevented from being too deep to press the space of other structures.
Referring to fig. 3, the interference fit cylinder section 21 is provided with a fixing hole for sleeving the connecting sleeve 30 in an outward direction toward the surface of the accommodating cavity 11, the external fit cylinder section 22 is provided with a sound transmission hole 221 communicated with the fixing hole in an inward direction away from the surface of the accommodating cavity 11, and the aperture of the fixing hole is larger than that of the sound transmission hole 221. The aperture of the fixing hole is larger than that of the sound transmission hole 221, so that when the connecting sleeve 30 is inserted into the interference fit cylinder section 21, the sound transmission hole 221 and the fixing hole form a second table surface which is abutted against the connecting sleeve 30 due to the aperture difference, and the connecting sleeve 30 is limited to move outwards. It should be noted that the location of the second land defines the depth to which the coupling sleeve 30 can be inserted into the interference fit barrel section 21. That is, one skilled in the art can design the depth to which the connection sleeve 30 can penetrate into the interference fit barrel section 21 by locating the second land.
Preferably, the barrel length of the connecting sleeve 30 is greater than the bore depth of the fastening bore, and the barrel end of the connecting sleeve 30 facing away from the fastening sleeve 20 is connected to the loudspeaker. That is, when the connection sleeve 30 is inserted into the fixing hole, the end tube of the connection sleeve 30 facing the accommodating cavity 11 protrudes out of the fixing hole and is close to the accommodating cavity 11, and the speaker is disposed on the end tube. Since the fastening sleeve 20 deforms and presses the outer cylindrical wall surface of the connection sleeve 30 when being fitted in the sound outlet hole 12, that is, the outer cylindrical wall surface of the connection sleeve 30 receives the pressing force from the fastening sleeve 20, the connection sleeve 30 generates internal stress under the pressing force, and the internal stress is mainly concentrated in the pressed region. Since the loudspeaker is arranged in the end sleeve remote from the fastening sleeve 20, which projects beyond the fastening hole, i.e. at a distance from the compressed region, the influence of the pressing force on the region of the connecting sleeve 30 for fixing the loudspeaker is reduced, so that the loudspeaker is protected to a certain extent against the pressing force.
Further preferably, the connecting sleeve 30 extends from the fixing hole to the accommodating chamber 11. That is, the barrel end of the connecting sleeve 30 facing away from the fixing hole is located in the accommodating chamber 11, and the speaker is disposed at the barrel end so that the speaker is located in the accommodating chamber 11. Since the electronic components of the in-ear earphone, such as the circuit board, except the speaker, are disposed in the accommodating chamber 11, the speaker is electrically connected to the circuit board through the electrical leads to receive electrical signals, and the speaker converts the electrical signals into sound. The connection sleeve 30 extends from the fixing hole to the accommodation chamber 11, so that the speaker is located in the accommodation chamber 11, so that the distance between the speaker and the circuit board is shortened, thereby reducing the length of an electrical lead connecting the speaker and the circuit board.
In this embodiment, the connection between the circumferential surface of the interference fit cylinder section 21 and the end surface facing the accommodating cavity 11 is a circular arc chamfer. The setting of circular arc chamfer on the one hand avoids adopting right angle transition and causes the fish tail or cause the fish tail to operating personnel to going out the sound hole 12 when interference fit section of thick bamboo section 21 pegs graft out the sound hole 12, and on the other hand, interference fit section of thick bamboo section 21 is towards the terminal surface of holding chamber 11 to the week side surface arc transition of interference fit section of thick bamboo section 21 to reduce the degree of difficulty that interference fit section of thick bamboo section 21 pegs graft out sound hole 12.
The diameter of the circumferential side surface of the interference fit cylinder section 21 is gradually increased from the accommodating cavity 11 to the outer direction. In the process that the interference fit cylinder section 21 is inserted into the sound outlet hole 12, clearance between the interference fit cylinder section 21 and the sound outlet hole is in clearance fit and transition fit with the interference fit, so that the difficulty of inserting the interference fit cylinder section 21 into the sound outlet hole 12 is reduced, and meanwhile, the tightness of connection between the interference fit cylinder section 21 and the sound outlet hole 12 is guaranteed.
In another embodiment, the interference fit barrel section 21 is recessed in the circumferential side surface in the direction of the connecting sleeve 30 to form an annular groove 211. The interference-fit cylinder section 21 is divided into an upper portion and a lower portion according to the positional relationship with respect to the groove 211. Need counterpoint before interference fit section of thick bamboo 21 and play sound hole 12 peg graft, because manual operation, insert the insertion angle of a sound hole 12 with interference fit section of thick bamboo section 21 and the degree of accuracy of counterpointing and be difficult to have accurate assurance, and under this deviation of counterpointing, interference fit section of thick bamboo 21 receives the conflict production deformation of a sound hole 12 pore wall. The setting of recess 211 for under this deviation of counterpointing, the upper portion of interference fit section of thick bamboo 21 and the pore wall butt of play sound hole 12, and produce deformation in recess 211 department, in order to offset the pressure of the pore wall of play sound hole 12 to interference fit section of thick bamboo 21, thereby protected the lower part of interference fit section of thick bamboo 21 to a certain extent, in order to avoid the deformation of interference fit section of thick bamboo 21 lower part and influence the fastening nature that interference fit section of thick bamboo 21 lower part and play sound hole 12 are connected.
Preferably, the groove 211 is disposed near the end surface of the interference fit cylinder section 21 facing the accommodating cavity 11. That is, the size of the upper portion of the interference fit cylinder section 21 is smaller than that of the lower portion, and the deformation position (the groove 211) of the interference fit cylinder section 21 is close to the end face of the interference fit cylinder section 21 facing the accommodating cavity 11, so as to further reduce the deformation amount of the lower portion of the interference fit cylinder section 21, and further reduce the influence of the alignment deviation on the tightness of the connection of the lower portion of the interference fit cylinder section 21 and the sound outlet hole 12.
Example two
The present embodiments provide an in-ear headphone including a securing structure. Please refer to the first embodiment for the specific structure of the fixing structure. Since the present embodiment adopts all the technical solutions of the first embodiment, all the technical effects brought by all the technical solutions of the above embodiments are also achieved, and are not described in detail herein.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. A fixing structure adapted for an in-ear headphone and for fixing a speaker, comprising:
the earphone shell is provided with an accommodating cavity and a sound outlet hole which communicates the accommodating cavity to the outside;
the fastening sleeve comprises an interference fit barrel section and an external fit barrel section which are sequentially connected from the accommodating cavity to the sound outlet hole, and the interference fit barrel section is in interference sleeve fit with the sound outlet hole;
the connecting sleeve is used for accommodating the loudspeaker, the connecting sleeve is in sleeve fit with the interference fit cylinder section, and the outer cylinder diameter of the connecting sleeve is smaller than or equal to the inner cylinder diameter of the interference fit cylinder section;
the fastening sleeve deforms and extrudes the outer cylinder wall surface of the connecting sleeve when being sleeved in the sound outlet hole so as to limit the connecting sleeve to displace in the opening direction of the sound outlet hole.
2. The fixing structure according to claim 1, wherein the sound outlet hole comprises a first hole section and a second hole section sequentially arranged in an outward direction from the accommodating cavity, and an aperture of the first hole section is smaller than an aperture of the second hole section;
the interference fit barrel section is in interference sleeve fit with the sound outlet hole at the second hole section;
the connecting sleeve deforms and extrudes the outer cylinder wall surface of the connecting sleeve when being sleeved in the second hole section.
3. The fixing structure according to claim 1, wherein the interference fit cylinder section is recessed in a direction of the connecting sleeve at a peripheral side surface to form an annular groove.
4. The fixation structure of claim 3, wherein the groove is disposed proximate to an end surface of the interference fit barrel section facing the receiving cavity.
5. The fixation structure according to claim 1, wherein a junction of a peripheral side surface of the interference fit cylinder section and an end surface facing the accommodation chamber is a rounded chamfer.
6. The fixing structure of claim 1, wherein the interference fit cylinder section is provided with a fixing hole for sleeving the connecting sleeve in an outward direction towards the surface of the accommodating cavity, the external fit cylinder section is provided with a sound transmission hole communicated with the fixing hole in an inward direction away from the surface of the accommodating cavity, and the diameter of the fixing hole is larger than that of the sound transmission hole.
7. The fastening arrangement as claimed in claim 6, characterized in that the barrel length of the connecting sleeve is greater than the bore depth of the fastening bore, and that the barrel end of the connecting sleeve facing away from the fastening sleeve is connected to the loudspeaker.
8. The fixation structure of claim 7, wherein the connecting sleeve extends from the fixation hole to the receiving cavity.
9. The fixing structure according to any one of claims 1 to 8, wherein the diameter of the peripheral side surface of the interference fit cylinder section is set gradually larger in a direction outward from the housing cavity.
10. An in-ear headphone, characterized in that it comprises a fixing structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550519.1U CN210469684U (en) | 2019-09-16 | 2019-09-16 | Fixing structure and in-ear earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550519.1U CN210469684U (en) | 2019-09-16 | 2019-09-16 | Fixing structure and in-ear earphone |
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| Publication Number | Publication Date |
|---|---|
| CN210469684U true CN210469684U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921550519.1U Active CN210469684U (en) | 2019-09-16 | 2019-09-16 | Fixing structure and in-ear earphone |
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| Country | Link |
|---|---|
| CN (1) | CN210469684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111741398A (en) * | 2020-07-13 | 2020-10-02 | 惠州市裕和源科技有限公司 | Earphone set |
-
2019
- 2019-09-16 CN CN201921550519.1U patent/CN210469684U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111741398A (en) * | 2020-07-13 | 2020-10-02 | 惠州市裕和源科技有限公司 | Earphone set |
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