Coaxial integrated earphone loudspeaker

Abstract

The utility model discloses a coaxial one-piece earphone horn, which comprises a surface cover, a support, a low-frequency driving unit, a high-frequency driving unit and a PCB (printed circuit board), the surface cover is arranged on the surface of the support, the low-frequency driving unit and the high-frequency driving unit are arranged in the support, and the PCB is arranged on the back of the support. The low-frequency driving unit comprises a low-pitch voice coil, a low-pitch voice diaphragm, a low-pitch washer, a low-pitch magnet and a low-pitch U-shaped cup, the high-frequency driving unit comprises a high-pitch voice diaphragm, a high-pitch voice coil, a high-pitch washer, a high-pitch magnet, a high-pitch U-shaped cup and a high-pitch tuning net, the high-pitch U-shaped cup is connected to the bottom of the surface cover, the high-pitch voice diaphragm is arranged at the center of the support in a wrapping mode, and a second cavity is formed by the high-pitch voice diaphragm and the high-pitch U-shaped cup. The high-pitch voice coil, the high-pitch washer and the high-pitch magnet are installed in the second cavity. The method has the advantages of good transient response, low harmonic distortion, and good flexibility and dynamic mechanical properties.

Description

Technical Field

[0001] The utility model relates to the technical field of audio equipment, and in particular to the improvement of an integrated earphone speaker. Background Art

[0002] With the popularity of mobile devices, users' demand for headphones is growing, especially the pursuit of sound quality and portability. Traditional headphone speaker designs usually use separate drive units, such as dynamic drivers and balanced armature drivers, which are responsible for low-frequency and high-frequency output respectively.

[0003] When audio is input to existing headphone speakers, especially low-frequency input, the sound from the rear side of the diaphragm will directly pass through the tuning holes and form sound waves in opposite directions with the sound from the front side of the diaphragm, causing the sound waves in front and behind the speaker diaphragm to cancel each other out, forming an acoustic short circuit. This causes more noise when the ear is close to the subwoofer, and only weak bass can be felt at a very small position. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a coaxial integrated headphone speaker having better transient response and lower harmonic distortion, as well as the advantages of better flexibility and dynamic mechanical properties, thereby solving the problem of the sound waves before and after the speaker diaphragm canceling each other out, forming an acoustic short circuit, and causing more noise when the ear is close to the subwoofer.

[0005] In order to achieve the above advantages of better transient response and lower harmonic distortion, better flexibility and dynamic mechanical properties, the specific technical solutions adopted by the utility model are as follows:

[0006] A coaxial integrated earphone speaker, comprising a face cover, a bracket, a low-frequency drive unit, a high-frequency drive unit and a PCB board, wherein the face cover is arranged on the surface of the bracket, the low-frequency drive unit and the high-frequency drive unit are arranged in the bracket, and the PCB board is arranged on the back of the bracket, the low-frequency drive unit comprises a bass voice coil, a bass sound membrane, a bass washer, a bass magnet, a bass U cup, a bass tuning paper, and a bass tuning net, the bass U cup is arranged on the inner side of the bracket, the bass sound membrane is wrapped and arranged on the surface of the bracket, and forms a cavity with the bass U cup, the bass voice coil, the bass washer and the bass magnet are installed in the cavity, the bass tuning paper and the bass tuning net are arranged on the bottom surface of the PCB board, the high-frequency drive unit comprises a treble sound membrane, a treble voice coil, a treble washer, a treble magnet, a treble U cup, and a treble tuning net, the treble U cup is connected to the bottom of the face cover, the treble sound membrane is wrapped and arranged in the center of the bracket, and forms a second cavity with the treble U cup, and the treble voice coil, the treble washer and the treble magnet are installed in the second cavity.

[0007] Furthermore, the high-frequency driving unit and the low-frequency driving unit share the same axis, and the sound-emitting surfaces of the two face the same direction.

[0008] Furthermore, a mounting cavity and a stepped surface are provided inside the bracket, and the stepped surface is in contact with the upper side surface of the bottom edge of the bracket.

[0009] Furthermore, the PCB board is provided with an inductor, a chip resistor, and a chip capacitor, and the inductor, the chip resistor, and the chip capacitor are fastened and welded on the PCB board.

[0010] Furthermore, the bass diaphragm is composed of three layers of TPE diaphragms and an excellent polymer damping layer.

[0011] Furthermore, the tweeter diaphragm is made of titanium diaphragm, and the tweeter voice coil is a HCCAW coil.

[0012] Furthermore, the treble magnet and the woofer magnet are both NdFeB magnets.

[0013] Compared with the prior art, the utility model provides a coaxial integrated earphone speaker, which has the following beneficial effects:

[0014] It has good transient response and low harmonic distortion, and its flexibility and dynamic mechanical properties are better. The low frequency dives deep, the high frequency is bright and transparent, and the bass is matched with the TPE three-layer polymer composite diaphragm, which brings a wide frequency response range, accurately presents the rich details of high-resolution music, and makes the sound vivid, clear, friendly and natural. The treble part uses a titanium diaphragm material with stronger rigidity and lighter weight, and is matched with the HCCAW coil. After being processed by the frequency division circuit, the treble has the advantages of clear and transparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the PCB board 17 in the present utility model.

[0020] In the figure: cover 1, bracket 2, bass voice coil 3, bass diaphragm 4, bass washer 5, bass magnet 6, bass U cup 7, bass tuning paper 18, bass tuning net 19, PCB board 17, tweeter diaphragm 8, tweeter voice coil 9, tweeter washer 10, tweeter magnet 11, tweeter U cup 12, tweeter tuning net 13. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] According to an embodiment of the utility model, a coaxial integrated earphone speaker is provided.

[0023] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to an embodiment of the utility model, a coaxial integrated earphone speaker comprises a cover 1, a bracket 2, a low-frequency drive unit, a high-frequency drive unit and a PCB board 17, wherein the cover 1 is arranged on the surface of the bracket 2, the low-frequency drive unit and the high-frequency drive unit are arranged in the bracket 2, the PCB board 17 is arranged on the back of the bracket 2, the low-frequency drive unit comprises a bass voice coil 3, a bass diaphragm 4, a bass washer 5, a bass magnet 6, a bass U cup 7, a bass tuning paper 18, and a bass tuning net 19, the bass U cup 7 is arranged on the inner side of the bracket 2, and the bass diaphragm 4 is wrapped and arranged on the bracket 2. The surface of the bracket 2 forms a cavity with the bass U cup 7, the bass voice coil 3, the bass washer 5 and the bass magnet 6 are installed in the cavity, the bass tuning paper 18 and the bass tuning net 19 are arranged on the bottom of the PCB board 17, the high-frequency driving unit includes a tweeter diaphragm 8, a tweeter voice coil 9, a tweeter washer 10, a tweeter magnet 11, a tweeter U cup 12 and a tweeter tuning net 13, the tweeter U cup 12 is connected to the bottom of the cover 1, the tweeter diaphragm 8 is wrapped and arranged in the center of the bracket 2, and forms a cavity 2 with the tweeter U cup 12, the tweeter voice coil 9, the tweeter washer 10 and the tweeter magnet 11 are installed in the cavity 2.

[0024] In one embodiment, the high-frequency driving unit and the low-frequency driving unit share the same axis, and the sound-emitting surfaces of the two face the same direction.

[0025] In one embodiment, a mounting cavity and a stepped surface are provided inside the bracket 2 , and the stepped surface is in contact with the upper side surface of the bottom edge of the bracket 2 .

[0026] In one embodiment, the PCB board 17 is provided with an inductor 14 , a chip resistor 15 , and a chip capacitor 16 , and the inductor 14 , the chip resistor 15 , and the chip capacitor 16 are fastened and welded on the PCB board 17 .

[0027] In one embodiment, the bass diaphragm 4 is composed of three layers of TPE diaphragms and an excellent polymer damping layer, so that the bass part has high resilience, sufficient low-frequency strength, and excellent transient response.

[0028] In one embodiment, the tweeter diaphragm 8 is made of titanium diaphragm material, and the tweeter voice coil 9 is a HCCAW coil. An acoustic damping material is provided on the back of the diaphragm to optimize the low-frequency response and reduce distortion.

[0029] In one embodiment, the treble magnet 11 and the bass magnet 6 are both NdFeB magnets, which greatly improves the driving power and can quickly respond to high-resolution audio signals, giving you stronger, clearer and brighter sound.

[0030] Working principle: By setting the cover 1 on the surface of the bracket 2, the low-frequency drive unit and the high-frequency drive unit are set in the bracket 2, the PCB board 17 is set on the back of the bracket 2, the bass U cup 7 is set on the inside of the bracket 2, the bass diaphragm 4 is wrapped and set on the surface of the bracket 2, and forms a cavity with the bass U cup 7, the bass voice coil 3, the bass washer 5 and the bass magnet 6 are installed in the cavity, the bass tuning paper 18 and the bass tuning net 19 are set on the bottom of the PCB board 17, the treble U cup 12 is connected to the bottom of the cover 1, the treble diaphragm 8 is wrapped and set in the center of the bracket 2, and forms a cavity 2 with the treble U cup 12, the treble voice coil 9, the treble washer 10 and the treble magnet 11 are installed in the cavity 2, and the bass diaphragm 4 is composed of three layers of PET diaphragms with excellent polymer damping layers. The bass part has high resilience, sufficient low-frequency strength, and excellent transient response. The treble diaphragm 8 is made of titanium diaphragm, and the treble voice coil 9 is a HCCAW coil. Acoustic damping material is provided on the back of the diaphragm to optimize low-frequency response and reduce distortion. The tweeter magnet 11 and the bass magnet 6 are both NdFeB magnets. They greatly improve the driving power and can quickly respond to high-resolution audio signals, giving you a stronger, clearer and brighter sound.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coaxial integrated earphone speaker, characterized in that: The invention comprises a cover (1), a bracket (2), a low-frequency drive unit, a high-frequency drive unit and a PCB board (17); the cover (1) is arranged on the surface of the bracket (2); the low-frequency drive unit and the high-frequency drive unit are arranged inside the bracket (2); the PCB board (17) is arranged on the back of the bracket (2); the low-frequency drive unit comprises a bass voice coil (3), a bass diaphragm (4), a bass washer (5), a bass magnet (6), a bass U cup (7), a bass tuning paper (18) and a bass tuning net (19); the bass U cup (7) is arranged on the inner side of the bracket (2); the bass diaphragm (4) is wrapped around the surface of the bracket (2) and is connected to the bass U cup (7). A cavity is formed, a bass voice coil (3), a bass washer (5) and a bass magnet (6) are installed in the cavity, a bass tuning paper (18) and a bass tuning net (19) are arranged on the bottom surface of a PCB board (17), the high-frequency driving unit comprises a treble diaphragm (8), a treble voice coil (9), a treble washer (10), a treble magnet (11), a treble U cup (12), and a treble tuning net (13), the treble U cup (12) is connected to the bottom of the cover (1), the treble diaphragm (8) is wrapped and arranged at the center of the bracket (2), and forms a second cavity with the treble U cup (12), the treble voice coil (9), the treble washer (10) and the treble magnet (11) are installed in the second cavity.

2. The coaxial integrated earphone speaker according to claim 1, characterized in that: The high-frequency driving unit and the low-frequency driving unit share the same axis, and the sound-emitting surfaces of the two face the same direction.

3. The coaxial integrated earphone speaker according to claim 1, characterized in that: The bracket (2) is provided with a mounting cavity and a stepped surface inside, and the stepped surface is in contact with the upper side surface of the bottom edge of the bracket (2).

4. The coaxial integrated earphone speaker according to claim 1, characterized in that: An inductor (14), a chip resistor (15), and a chip capacitor (16) are arranged on the PCB board (17); the inductor (14), the chip resistor (15), and the chip capacitor (16) are fixedly welded on the PCB board (17).

5. The coaxial integrated earphone speaker according to claim 1, characterized in that: The bass diaphragm (4) is composed of three layers of TPE diaphragms and a polymer damping layer.

6. The coaxial integrated earphone speaker according to claim 1, characterized in that: The tweeter diaphragm (8) is made of titanium diaphragm material, and the tweeter voice coil (9) is a HCCAW coil.

7. The coaxial integrated earphone speaker according to claim 1, characterized in that: The treble magnet (11) and the bass magnet (6) are both NdFeB magnets.

Images