An ear-holding type Bluetooth earphone sound production system

Abstract

This utility model relates to the field of Bluetooth headset technology, and more particularly to a clip-on Bluetooth headset sound system, including a bone conduction cap, the internal components of which include a main board, electrical components, a rubber base, and a battery; an earbud, the internal components of which include a sub-plate, connecting threads, a connecting plate, a dynamic driver unit, and a balanced armature driver unit, the sub-plate and the connecting plate being integrally formed and connected, the connecting plate having a U-shaped structure and located below the sub-plate; an ear clip, disposed between the bone conduction cap and the earbud, the ear clip having a sound guide groove inside, and a sound guide tube fixedly connected inside the sound guide groove; a dynamic driver unit located in the middle of the connecting plate, including a circular diaphragm and a first voice coil, the circular diaphragm being located in the middle of the first voice coil; and a balanced armature driver unit located at the bottom of the connecting plate, including a second voice coil, a diaphragm, and a support post, the second voice coil being annular, and the diaphragm being located at the bottom of the annular second voice coil. This utility model provides a more natural stereo experience through binaural sound generation.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset technology, and in particular to a clip-on Bluetooth headset sound generation system. Background Technology

[0002] Clip-on Bluetooth headphones utilize air conduction technology to achieve an open-back design, offering multiple advantages such as comfortable wear, hearing protection, and safe use. This technology not only optimizes the user experience but also drives the headphone industry towards a healthier and more environmentally friendly direction.

[0003] Air conduction technology is a method of transmitting sound through the air. Unlike traditional in-ear headphones, it does not transmit sound directly to the eardrum. Instead, the sound is transmitted to the vicinity of the ear in the form of air vibrations through the sound-producing unit on the headphones, and then transmitted to the eardrum through the external auditory canal, where it is perceived by the auditory system. However, the sound quality of air conduction headphones may be slightly inferior to that of in-ear headphones.

[0004] Chinese Patent Publication No. CN204761668U discloses a Bluetooth headset combining dynamic and balanced armature drivers, including a housing, a circuit board and a driver unit disposed within the housing, and a cavity for accommodating the circuit board and driver unit. The circuit board has a Bluetooth wireless module and an antenna connected to the Bluetooth wireless module. The Bluetooth wireless module is also connected to a power circuit and a micro switch. The Bluetooth wireless module is electrically connected to the driver unit. The headset also includes a frequency divider circuit between the Bluetooth wireless module and the driver unit. The driver unit includes a dynamic driver unit and a balanced armature driver unit connected to the frequency divider circuit. Therefore, the Bluetooth headset combining dynamic and balanced armature drivers has the following problems:

[0005] In-ear headphones can easily cause pressure and blockage in the ear canal. Long-term wear can lead to ear canal discomfort or hearing loss. At the same time, users may not be able to hear external sounds while wearing headphones, which poses a safety hazard. Utility Model Content

[0006] Therefore, this utility model provides a clip-on Bluetooth earphone sound system to overcome the problems in the prior art where earphones easily compress the ear canal, causing ear canal discomfort, and at the same time, users cannot hear external sounds clearly when wearing earphones, posing a safety hazard.

[0007] To achieve the above objectives, this utility model provides a clip-on Bluetooth headset sound generation system, comprising:

[0008] The bone conduction cap has a spherical structure. The internal components of the bone conduction cap include a main board, electrical components, a rubber base, and a battery. The electrical components are attached to both sides of the main board, and the rubber base and the battery are respectively disposed on both sides of the main board.

[0009] The in-ear earbud has a spherical structure. The internal components of the in-ear earbud include a sub-plate, a connecting thread, a connecting plate, a moving coil unit, and a moving iron unit. The sub-plate and the connecting plate are integrally formed and connected. The connecting plate has a U-shaped structure and is located below the sub-plate.

[0010] The ear clip has a U-shaped structure and is positioned between the bone conduction cap and the earplug. The ear clip has a sound guide groove inside and a sound guide tube is fixedly connected inside the sound guide groove.

[0011] The moving coil unit is located in the middle of the connecting plate and includes a circular diaphragm and a first voice coil. The circular diaphragm is located in the middle of the first voice coil, and a retaining strip is provided on the surface of the moving coil unit.

[0012] The moving iron unit is located at the bottom of the connecting plate and includes a second voice coil, a diaphragm, and a support column. The second voice coil is annular, and the diaphragm is located at the bottom of the annular shape of the second voice coil.

[0013] Furthermore, the moving coil unit is fitted and connected to the middle of the connecting plate, one end of the support column of the moving iron unit passes through the vibrator and is connected to the bottom of the connecting plate, and the other end of the support column passes through the bottom shell of the earphone and is connected to the sound transmission hole of the bottom shell.

[0014] Furthermore, the sound guide tube has a hollow tube-shaped U-shaped structure, with one side located inside the bone conduction cap and the other side located inside the earplug, enabling it to transmit sound from inside the earplug to inside the bone conduction cap.

[0015] Furthermore, a limiting disc is integrally formed on one side of the ear clip, and a supporting base plate is integrally formed on the lower side of the other side of the ear clip.

[0016] Furthermore, the limiting disc is located inside the bone conduction cap, and the supporting base plate is located inside the earplug.

[0017] Furthermore, a plurality of limiting seats are provided on the side of the sub-plate near the bottom of the supporting base plate. The limiting seats are located between the sub-plate and the supporting base plate and can limit the relative position of the sub-plate and the supporting base plate.

[0018] Furthermore, the connecting thread passes through the sub-plate and is threadedly connected to the support base plate, connecting the sub-plate and the support base plate from bottom to top.

[0019] Furthermore, the limiting disc is provided with an elastic locking block, which can fix the battery to one side of the limiting disc.

[0020] Furthermore, two elastic retaining plates are provided on both sides of the battery. The battery is connected to the main board through the elastic retaining plates and fixed to the other side of the limiting disc by elastic retaining blocks.

[0021] Furthermore, a cavity is provided on the side of the battery near the motherboard, and the cavity is located below the sound guide tube.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] Furthermore, the sound guide tube is located inside the ear clip and connects to the sound guide groove at multiple points, which can eliminate interference with the sound signals of the dynamic and balanced armature units in the input earbud, increase the stability of signal transmission between the bone conduction cap and the earbud, and at the same time, the sound guide tube can transmit the sound of the dynamic and balanced armature units from inside the earbud to inside the bone conduction cap. This device is fixed to the ear with the ear clip, and the bone conduction cap conducts sound through the ear bone, directly transmitting the sound to the inner ear. The earbud is close to the ear canal and directly transmits the sound to the eardrum, avoiding ear canal pressure and blockage. At the same time, it allows users to hear external sounds while wearing headphones, thus having significant advantages in terms of safety, comfort and health.

[0024] Furthermore, the design of the clip-on earphones, which can emit sound from both ends, further optimizes the user experience. Binocular sound provides a more natural stereo experience, and compared to monophonic earphones, it can more realistically reproduce the spatial sense and layering of the sound. Binocular sound helps to balance the sound of the left and right channels, reducing the sound quality loss or distortion caused by monophonic sound, and avoiding ear canal discomfort or hearing loss caused by prolonged wearing of in-ear earphones. At the same time, the sound tube transmits the sound of the dynamic driver and balanced armature driver from inside the earbud to inside the bone conduction cap, and can improve the sound quality through the cavity between the battery and the limiting disc, thus improving the user experience.

[0025] Furthermore, the dynamic driver unit has a wide dynamic range and good low-frequency performance, while the balanced armature unit has excellent high-frequency resolution and rich detail. By combining the advantages of dynamic and balanced armature units, this device performs excellently in low, mid, and high frequencies, satisfying users with high requirements for sound quality and providing them with a more comprehensive and balanced sound experience. At the same time, by placing the dynamic driver unit and the balanced armature unit in the middle and bottom of the I-shaped connecting plate, the device can maintain connection stability while using a smaller connection structure. This maximizes the cavity volume of the internal cavity structure of the earbud while keeping the earbud size small, increasing the bass quality and loudness of the sound-producing device and improving the user's experience when using Bluetooth headphones.

[0026] Furthermore, the limiting seat is located between the sub-plate and the supporting base plate. It can limit the degree to which the connecting thread screws the sub-plate and the supporting base plate together, and also act as a buffer to absorb and reduce the energy generated by vibration or impact, thereby reducing the relative movement between the sub-plate and the supporting base plate, reducing noise and vibration transmission, and providing a certain degree of elasticity to prevent wear or damage caused by direct contact between the sub-plate and the supporting base plate. Through the limiting seat, the distance between the sub-plate and the supporting base plate can be adjusted to keep them in a stable relative position, isolating the sub-plate and the supporting base plate and improving the stability of the overall structure.

[0027] Furthermore, the rubber seat can reduce the vibration generated when the bone conduction cap shell is subjected to external force, thus preventing the bone conduction cap shell from interfering with the transmission of electrical signals in electrical components. Attached Figure Description

[0028] Figure 1 This is a semi-transparent structural diagram of the clip-on Bluetooth earphone in an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the main structure of the clip-on Bluetooth headset sound system in this embodiment of the present invention;

[0030] Figure 3 This is a top view of the clip-on Bluetooth headset sound system in an embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of the moving coil unit and the moving iron unit in the embodiments of this utility model;

[0032] Figure 5 This is a side view of the battery in an embodiment of the present invention;

[0033] In the diagram: 1-Bone conduction cap, 2-Earplug, 3-Ear clip, 11-Main board, 12-Rubber base, 13-Battery, 131-Elastic retaining plate, 21-Sub-board, 22-Connecting plate, 23-Connecting thread, 24-Limiting seat, 25-Dynamic coil unit, 26-Modal iron unit, 27-Sound transmission hole, 251-Clamping strip, 252-First voice coil, 261-Second voice coil, 262-Voice diaphragm, 263-Support column, 31-Sound guide groove, 32-Sound guide tube, 33-Limiting disc, 34-Support base plate, 331-Elastic retaining block. Detailed Implementation

[0034] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0035] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Please see Figures 1-5 As shown, Figure 1 This is a semi-transparent structural diagram of the clip-on Bluetooth earphone in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the main structure of the clip-on Bluetooth headset sound system in this embodiment of the present invention; Figure 3 This is a top view of the clip-on Bluetooth headset sound system in an embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of the structure of the moving coil unit and the moving iron unit in the embodiments of this utility model; Figure 5 This is a side view of the battery in an embodiment of the present invention.

[0040] This utility model provides a clip-on Bluetooth headset sound system, including:

[0041] The bone conduction cap 1 has a spherical structure. The internal components of the bone conduction cap 1 include a main board 11, electrical components, a rubber base 12, and a battery 13. The electrical components are attached to both sides of the main board 11, and the rubber base 12 and the battery 13 are respectively disposed on both sides of the main board 11.

[0042] Specifically, the rubber seat 12 can reduce the degree of vibration when the outer shell of the bone transmission cap 1 is subjected to external force, and prevent the outer shell of the bone transmission cap 1 from interfering with the transmission process of electrical signals in electrical components.

[0043] The in-ear plug 2 has a spherical structure. The internal components of the in-ear plug 2 include a sub-plate 21, a connecting thread 23, a connecting plate 22, a moving coil unit 25, and a moving iron unit 26. The sub-plate 21 and the connecting plate 22 are integrally formed and connected.

[0044] The sub-plate 21 is provided with a plurality of limiting seats 24 on the side near the bottom of the supporting base plate 34. The limiting seats 24 are located between the sub-plate 21 and the supporting base plate 34 and are used to limit the relative position of the sub-plate 21 and the supporting base plate 34.

[0045] The connecting thread 23 passes through the sub-plate 21 and is threadedly connected to the support base plate 34, for connecting the sub-plate 21 and the support base plate 34 from bottom to top;

[0046] Specifically, the limiting seat 24 is located between the sub-plate 21 and the supporting base plate 34. It can limit the degree to which the connecting thread 23 screws the sub-plate 21 and the supporting base plate 34 together, and also play a buffering role, absorbing and reducing the energy generated by vibration or impact, thereby reducing the relative movement between the sub-plate 21 and the supporting base plate 34, reducing noise and vibration transmission, and providing a certain degree of elasticity to prevent wear or damage caused by direct contact between the sub-plate 21 and the supporting base plate 34. Through the limiting seat 24, the distance between the sub-plate 21 and the supporting base plate 34 can be adjusted to keep them in a stable relative position, isolating the sub-plate 21 and the supporting base plate 34 and improving the stability of the overall structure.

[0047] The ear clip 3 has a U-shaped structure and is positioned between the bone conduction cap 1 and the earplug 2. The ear clip 3 has a sound guide groove 31 inside and a sound guide tube 32 is fixedly connected inside the sound guide groove 31.

[0048] The ear clip 3 has a limiting disc 33 integrally formed on one side, and a supporting base plate 34 integrally formed on the lower side of the other side;

[0049] The limiting disc 33 is located inside the bone conduction cap 1, and the supporting base plate 34 is located inside the earplug 2;

[0050] The limiting disc 33 is also provided with an elastic locking block 331 for fixing the battery 13;

[0051] Specifically, the sound guide tube 32 is located inside the ear clip 3 and is connected to the sound guide groove 31 through multiple points. This eliminates interference with the sound signals of the dynamic driver unit 25 and the balanced armature driver unit 26 in the input earbud 2, increases the stability of signal transmission between the bone conduction cap 1 and the earbud 2, and allows the sound from the dynamic driver unit 25 and the balanced armature driver unit 26 to be transmitted from inside the earbud 2 to inside the bone conduction cap 1. This device is fixed to the ear by the ear clip 3, and the bone conduction cap 1 transmits the sound directly to the inner ear through the ear bone. The earbud 2 is close to the ear canal and transmits the sound directly to the eardrum, avoiding ear canal pressure and blockage. At the same time, it allows users to hear external sounds while wearing headphones, thus having significant advantages in terms of safety, comfort and health.

[0052] Two elastic retaining plates 131 are provided on both sides of the battery 13. The battery 13 is connected to the main board 11 through the elastic retaining plates 131 and is fixed to one side of the limiting disk 33 by the elastic retaining block 331.

[0053] The battery 13 has a cavity on the side near the motherboard 11, and the cavity is located below the sound guide tube 32;

[0054] Specifically, the design of the clip-on earphones, which can emit sound from both ends, further optimizes the user experience. Binocular sound provides a more natural stereo experience. Compared with monophonic earphones, it can more realistically reproduce the spatial sense and layering of the sound. Binocular sound helps to balance the sound of the left and right channels, reducing the sound quality loss or distortion caused by monophonic sound, and avoiding ear canal discomfort or hearing loss caused by long-term wearing of in-ear earphones. At the same time, after the sound tube 32 transmits the sound of the dynamic driver unit 25 and the balanced armature unit 26 from inside the earplug 2 to inside the bone conduction cap 1, the sound quality can be improved through the cavity between the battery 13 and the limiting disk 33, thus improving the user experience.

[0055] The connecting plate 22 has a U-shaped structure and is located below the sub-plate 21;

[0056] The moving coil unit 25 is located in the middle of the connecting plate 22 and includes a circular diaphragm and a first voice coil 252. The circular diaphragm is located in the middle of the first voice coil 252. A retaining strip 251 is provided on the surface of the moving coil unit 25. The moving coil unit 25 is attached to the connecting plate 22.

[0057] The moving iron unit 26, located at the bottom of the connecting plate 22, includes a second voice coil 261, a diaphragm 262, and a support post 263. The second voice coil 261 is annular, the diaphragm 262 is located at the bottom of the annular shape of the second voice coil 261, one end of the support post 263 passes through the diaphragm 262 and is connected to the bottom of the connecting plate 22, and the other end of the support post 263 passes through the bottom shell of the earphone 2 and is connected to the sound transmission hole 27 of the bottom shell.

[0058] The sound tube 32 is a hollow tube-shaped U-shaped structure, with one side located inside the bone conduction cap 1 and the other side located inside the earplug 2, which can transmit the sound inside the earplug 2 to the bone conduction cap 1.

[0059] Specifically, the dynamic driver unit 25 has a wide dynamic range and good low-frequency performance, while the balanced armature unit 26 has excellent high-frequency resolution and rich detail. By combining the advantages of the dynamic driver and the balanced armature unit 26, this device performs well in low, mid, and high frequencies, satisfying users with high requirements for sound quality and providing them with a more comprehensive and balanced sound experience. At the same time, by placing the dynamic driver unit 25 and the balanced armature unit 26 in the middle and bottom of the I-shaped connecting plate 22, the connection stability can be ensured while adopting a smaller connection structure volume. Under the premise of a small earbud 2 volume, the cavity volume of the internal cavity structure of the earbud is preserved to the maximum extent, increasing the bass quality and loudness of the sound-producing device and improving the user's experience when using Bluetooth headphones.

[0060] Working process: The ear clip 3 is fixed to the ear, the earplug 2 is located on the side of the auricle near the ear canal, and the bone conduction cap 1 is located on the back of the auricle. When the audio signal passes through the voice coil of the dynamic unit 25, the voice coil will vibrate in the magnetic field of the permanent magnet, driving the diaphragm to move, thereby producing sound. When the audio signal passes through the voice coil of the balanced armature unit 26, the voice coil drives the vibrator 262 to vibrate through electromagnetic force, thereby producing sound. This device adopts a sound production mode setting in which the low frequency is handled by the dynamic unit 25, the mid frequency is combined by both, and the high frequency is handled by the balanced armature unit 26. At the same time, the sound tube 32 transmits the sound from the inside of the dynamic unit 25 and the balanced armature unit 26 from the inside of the earplug 2 to the inside of the bone conduction cap 1. The bone conduction cap 1 transmits the sound directly to the inner ear through the ear bone, and the earplug 2, close to the ear canal, directly transmits the sound to the eardrum.

[0061] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clip-on Bluetooth headset sound generation system, characterized in that, include: The bone conduction cap has a spherical structure. The internal components of the bone conduction cap include a main board, electrical components, a rubber base, and a battery. The electrical components are attached to both sides of the main board, and the rubber base and the battery are respectively disposed on both sides of the main board. The in-ear earbud has a spherical structure. The internal components of the in-ear earbud include a sub-plate, a connecting thread, a connecting plate, a moving coil unit, and a moving iron unit. The sub-plate and the connecting plate are integrally formed and connected. The connecting plate has a U-shaped structure and is located below the sub-plate. The ear clip has a U-shaped structure and is positioned between the bone conduction cap and the earplug. The ear clip has a sound guide groove inside and a sound guide tube is fixedly connected inside the sound guide groove. The moving coil unit is located in the middle of the connecting plate and includes a circular diaphragm and a first voice coil. The circular diaphragm is located in the middle of the first voice coil, and a retaining strip is provided on the surface of the moving coil unit. The moving iron unit is located at the bottom of the connecting plate and includes a second voice coil, a diaphragm, and a support column. The second voice coil is annular, and the diaphragm is located at the bottom of the annular shape of the second voice coil.

2. The ear-clamp Bluetooth headset sound system according to claim 1, characterized in that, The moving coil unit is attached to the middle of the connecting plate. One end of the support column of the moving iron unit passes through the vibrator and is connected to the bottom of the connecting plate. The other end of the support column passes through the bottom shell of the earphone and is connected to the sound transmission hole of the bottom shell.

3. The ear-clamp Bluetooth headset sound-generating system according to claim 1, characterized in that, The sound guide tube has a hollow U-shaped structure, with one side located inside the bone conduction cap and the other side located inside the earplug, enabling the sound inside the earplug to be transmitted to the bone conduction cap.

4. The ear-clamp Bluetooth headset sound system according to claim 1, characterized in that, One side of the ear clip has an integrally formed limiting disc, and the other side of the ear clip has an integrally formed supporting base plate.

5. The ear-clamp Bluetooth headset sound system according to claim 4, characterized in that, The limiting disc is located inside the bone conduction cap, and the supporting base plate is located inside the earplug.

6. The ear-clamp Bluetooth headset sound system according to claim 1, characterized in that, The sub-plate is provided with several limiting seats on the side near the bottom of the supporting base plate. The limiting seats are located between the sub-plate and the supporting base plate and can limit the relative position of the sub-plate and the supporting base plate.

7. The ear-clamp Bluetooth headset sound-generating system according to claim 1, characterized in that, The connecting thread passes through the sub-plate and is threadedly connected to the support base plate, connecting the sub-plate and the support base plate from bottom to top.

8. The ear-clamp Bluetooth headset sound-generating system according to claim 4, characterized in that, The limiting disc is provided with an elastic locking block, which can fix the battery to one side of the limiting disc.

9. The ear-clamp Bluetooth headset sound-generating system according to claim 1, characterized in that, Two elastic retaining plates are provided on both sides of the battery. The battery is connected to the main board through the elastic retaining plates and fixed to the other side of the limiting disc by elastic retaining blocks.

10. The ear-clip Bluetooth headset sound-generating system according to claim 1, characterized in that, The battery has a cavity on the side closest to the motherboard, and the cavity is located below the sound guide tube.

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