CN215581684U

CN215581684U - Ultra-thin earphone core structure

Info

Publication number: CN215581684U
Application number: CN202121596781.7U
Authority: CN
Inventors: 郑谏齐; 席丽姝; 陈祯
Original assignee: Dolphin Communication Dongguan Co ltd
Current assignee: Dolphin Communication Dongguan Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-01-18
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses an ultrathin earphone core structure, which belongs to the technical field of micro speakers and comprises a sound film and a voice coil arranged at the bottom of the sound film; the method is characterized in that: the edge of the sound film is directly fixed with the upper end face of the basin frame in a gluing mode, and the upper end face of the basin frame positioned at the outer side of the sound film is also provided with a glue overflow groove, so that the sound film basin has the beneficial effects that: the copper ring cancellation with the sound membrane, the adjustment is the direct veneer of sound membrane and basin frame, the whole thickness of earphone core reduces, possible ultra-thin structure, the complete machine inner space has been increased, the draw-in groove that has saved block copper ring adjusts sound membrane and basin frame and combines the width and can realize fine waterproof performance, the roughness of the adjustable difference of basin frame face that combines with the sound membrane, the combination of reinforcing and sound membrane, increase the excessive gluey groove structure, realize the effective fixed of sound membrane, prevent that glue from surpassing the assembly of appearance and follow-up area protecgulum, better optimization can be done to sound membrane and magnetic circuit, the acoustic performance of earphone core is more excellent.

Description

Ultra-thin earphone core structure

The technical field is as follows:

the utility model belongs to the technical field of micro speakers, and particularly relates to an ultrathin earphone core structure.

Background art:

the loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. The speakers are of various kinds and have very different prices, and can be classified into an electrodynamic type, i.e., moving coil type, an electrostatic type, i.e., capacitance type, an electromagnetic type, i.e., tongue type, a piezoelectric type, i.e., crystal type, and the like according to the transduction principle, and audio electric energy vibrates a cone or a diaphragm through an electromagnetic, piezoelectric or electrostatic effect and generates resonance with surrounding air to make sound.

With the development of TWS earphones, the earphones are more miniaturized, and consumers have higher requirements on audio performance, water resistance, endurance and the like; in order to realize good acoustic performance and obtain good tone quality, the sound film in the earphone core is usually designed to be of a copper ring structure, so that the sound film is protected and supported; on the other hand, the copper ring structure increases the thickness of the earphone core, occupies the structural space, improves the material cost, and particularly limits the performance improvement of the earphone core with the diameter of less than 11 mm.

The utility model has the following contents:

in order to solve the problems and overcome the defects of the prior art, the utility model provides an ultrathin earphone core structure;

the first technical problem to be solved is that: the structure with the copper ring increases the thickness of the earphone core, occupies structural space, improves material cost, and particularly limits the improvement of performance of the earphone core with the diameter of less than 11 mm.

The specific technical scheme for solving the technical problems comprises the following steps: the ultrathin earphone core structure comprises a sound film and a voice coil arranged at the bottom of the sound film; the method is characterized in that: the edge of the sound film is directly fixed with the upper end face of the basin frame in a gluing mode, and the upper end face of the basin frame positioned on the outer side of the sound film is further provided with a glue overflow groove.

Furthermore, the upper end surface of the basin stand is arranged into a horizontal plane.

Furthermore, the upper end surface of the basin frame combined with the sound film is set to be a rough surface.

Furthermore, a yoke is embedded at the bottom of the basin stand.

Furthermore, a magnetic steel is arranged on the concave surface of the yoke, a washer is arranged on the upper end surface of the magnetic steel, a voice coil is arranged on the outer side of the washer, and a sound film is arranged above the washer.

Furthermore, the bottom of the basin frame positioned on one side is provided with a sound hole screen cloth.

The utility model has the beneficial effects that:

the copper ring of the sound film is cancelled, the sound film is adjusted to be directly glued with the basin frame, the whole thickness of the earphone core is reduced, the ultra-thin structure can be realized, the internal space of the whole machine is increased, the stacking of the structure of the whole machine is facilitated, the performance of all aspects is improved, such as the capacity of a battery is increased, more components are arranged, and the like;

secondly, an excessive glue groove structure is added, so that the sound film is effectively fixed, glue is prevented from exceeding the appearance and being assembled with a front cover subsequently, the sound film and a magnetic circuit system can be optimized better, and the acoustic performance of the earphone core is better;

and the clamping groove for clamping the copper ring is omitted to adjust the combination width of the sound film and the basin frame, so that good waterproof performance can be realized, different roughness can be adjusted on the surface of the basin frame combined with the sound film, and the combination with the sound film is enhanced.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partially enlarged schematic view of the present invention;

FIG. 3 is a schematic view of a prior art structure;

FIG. 4 is a partially enlarged schematic view of a prior art; in the drawings:

1. a sound membrane; 2. a voice coil; 3. a basin stand; 4. a sound hole mesh cloth; 5. magnetic steel; 6. a yoke; 7. a glue overflow groove; 8. washer; 9. a copper ring; 10. a clamping groove.

The specific implementation mode is as follows:

in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplification of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation mode of the utility model is as follows: the ultrathin earphone core structure comprises a sound film 1 and a voice coil 2 arranged at the bottom of the sound film 1; the method is characterized in that: the edge of the sound membrane 1 is directly fixed with the upper end face of the basin frame 3 in a gluing mode, and the upper end face of the basin frame 3 positioned on the outer side of the sound membrane 1 is also provided with a glue overflow groove 7.

Further, the upper end surface of the tub stand 3 is set to a horizontal surface.

Furthermore, the upper end surface of the basin frame 3 combined with the sound film 1 is set to be a rough surface.

Further, a yoke 6 is embedded at the bottom of the basin stand 3.

Further, a magnetic steel 5 is arranged on the concave surface of the yoke 6, a washer 8 is arranged on the upper end surface of the magnetic steel 5, a voice coil 2 is arranged on the outer side of the washer 8, and a sound film 1 is arranged above the washer 8.

Furthermore, the bottom of the basin stand 3 positioned at one side is provided with a sound hole mesh cloth 4.

It should be noted that the utility model relates to an ultra-thin earphone core structure, and when in specific work,

1. the bottom of the basin frame 3 is embedded with a yoke 6, a magnetic steel 5 is arranged on a concave surface of the yoke 6, an upper end face of the magnetic steel 5 is provided with a washer 8, the outer side of the washer 8 is provided with a voice coil 2, a sound film 1 is arranged above the washer 8, the edge of the sound film 1 is directly fixed with the upper end face of the basin frame 3 in a gluing mode, and the upper end face of the basin frame 3, which is positioned outside the sound film 1, is also provided with a glue overflow groove 7;

2. the conventional sound membrane with the earphone core structure is of a copper ring structure, a positioning steel ring structure is additionally designed, the thickness direction also occupies space, and the acoustic performance and the waterproofness are reduced; the earphone core that this embodiment set up adjusts copper ring peripheral structure design on the sound membrane according to step 1, and the basin frame is the plastic material, especially to the earphone core below 11mm diameter:

the copper ring 9 of the sound film is eliminated and adjusted to be directly glued with the basin frame, the whole thickness of the earphone core is reduced, the ultra-thin structure can be realized, the internal space of the whole machine is increased, the structure stacking of the whole machine is facilitated, the performance of all aspects is improved, such as the capacity of a battery is increased, and more components and parts are arranged;

and thirdly, the clamping groove 10 for clamping the copper ring 9 is omitted to adjust the combination width of the sound film and the basin frame, so that good waterproof performance can be realized, the surface of the basin frame combined with the sound film can adjust different roughness, and the combination with the sound film is enhanced.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An ultrathin earphone core structure comprises a sound film (1) and a voice coil (2) arranged at the bottom of the sound film (1); the method is characterized in that: the edge of the sound membrane (1) is directly fixed with the upper end face of the basin frame (3) in a gluing mode, and the upper end face of the basin frame (3) positioned on the outer side of the sound membrane (1) is further provided with a glue overflow groove (7).

2. The ultra-thin earphone movement structure according to claim 1, characterized in that the upper end face of the frame (3) is arranged in a horizontal plane.

3. The ultra-thin earphone core structure according to claim 2, wherein the upper end surface of the frame (3) combined with the sound film (1) is provided as a rough surface.

4. The ultra-thin earphone movement structure according to claim 1, characterized in that a yoke (6) is embedded at the bottom of the frame (3).

5. The ultrathin earphone core structure according to claim 4, characterized in that the concave surface of the yoke (6) is provided with a magnetic steel (5), the upper end surface of the magnetic steel (5) is provided with a washer (8), the outer side of the washer (8) is provided with a voice coil (2), and a sound diaphragm (1) is arranged above the washer (8).

6. Ultra-thin earphone core structure according to claim 1, characterized in that the bottom of the frame (3) on one side is provided with a sound hole mesh (4).