Two-way two-unit two-division passive radiator earphone

Abstract

The utility model relates to a two -way two unit two -passive radiator earphone belongs to earphone field, including earphone department and the ear hanging department of rotation connection or fixed connection in earphone department, the inside of earphone department is provided with PCB board and first loudspeaker, the ear hanging department or earphone department inside is provided with battery, battery, first loudspeaker and PCB board electric connection, the front of first loudspeaker is provided with the acoustic cavity, the front end of acoustic cavity is provided with vibrating diaphragm, the inside of earphone department still is provided with second loudspeaker, second loudspeaker is located first loudspeaker one side. This two -way two unit two -passive earphone through setting up acoustic cavity and vibrating diaphragm, make the sound effect of earphone more have stereoscopic feeling, through setting up treble loudspeaker, realize two two -passive sound effect, the sound is more delicate, through setting up wireless charging receiving coil and the driving circuit of adaptation, cooperate external wireless charger, road for battery wireless charging, it is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, specifically to a two-channel, two-unit, two-crossover passive radiator headphone. Background Technology

[0002] In today's mobile communication, remote conferencing, and sports scenarios, single-ear headphones have become a portable tool for voice interaction and audio entertainment. Whether business people are answering calls during their commute or cyclists are listening to music or navigation prompts outdoors, single-ear headphones are widely used due to their small size and ease of wearing.

[0003] However, most existing single-ear headphones use a single dynamic driver architecture, which has a limited frequency response range, lacks high-frequency details, and is prone to low-frequency distortion. This makes it difficult to meet the needs of stereo sound field and delicate sound quality. Due to the single driver structure, users often need to repeatedly increase the volume in high-noise environments to compensate for insufficient resolution, which can easily cause hearing fatigue when listening at high volumes for a long time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a two-way, two-unit, two-crossover passive radiator headphone, which has the advantages of being a two-way, two-unit, two-crossover passive headphone. It solves the problems of existing single-ear headphones, which generally use a single dynamic driver architecture, resulting in limited frequency response range, loss of high-frequency details, and easy distortion in low frequencies, making it difficult to meet the usage requirements of stereo sound field and delicate sound quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including an earphone part and an ear hook part rotatably connected or fixedly connected to the earphone part, wherein a PCB board and a first speaker are disposed inside the earphone part, a battery is disposed inside the ear hook part or the earphone part, the battery, the first speaker and the PCB board are electrically connected, a sound cavity is disposed in front of the first speaker, and a diaphragm is disposed at the front end of the sound cavity.

[0006] Furthermore, a second speaker is also provided inside the earphone part. The second speaker is located to one side of the first speaker. The second speaker is connected to the PCB board. The second speaker is a tweeter. A mesh cover is embedded in front of the second speaker.

[0007] Furthermore, a Bluetooth module is provided on the PCB board.

[0008] Furthermore, the earphone unit also includes a wireless charging receiving coil disposed inside the earphone unit. The wireless charging receiving coil is electrically connected to the PCB board, and the PCB board is provided with wireless charging related driving circuitry and is used to charge the battery.

[0009] Furthermore, the cross-sectional shape of the ear loop is set to C-shape.

[0010] Furthermore, the mesh cover is flush with the front end face of the earphone housing.

[0011] Furthermore, the sound cavity is a stepped cylindrical structure with a smaller front and a larger rear, and its front outer diameter is smaller than its rear outer diameter. The diaphragm is attached to the front end face of the sound cavity, and the outer edge of the diaphragm is pressed and fixed by the front cover of the earphone part.

[0012] Furthermore, the second speaker is a disc-shaped tweeter with a diameter smaller than that of the first speaker, and the mesh cover is a circular metal mesh concentric with the second speaker.

[0013] Furthermore, the Bluetooth module supports multiple Bluetooth protocols to ensure compatibility with different devices.

[0014] Furthermore, the outer side of the earphone part is provided with a sound outlet located at the front end of the diaphragm, and a dustproof mesh located in front of the diaphragm is provided inside the sound outlet.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This two-way, two-unit, two-crossover passive headphone, through the design of the acoustic chamber and diaphragm, makes the sound effect of the headphone more three-dimensional.

[0016] 2. This two-way, two-unit, two-crossover passive headphone achieves a two-way crossover sound effect by setting up a tweeter, resulting in a more delicate sound.

[0017] 3. This dual-channel, dual-unit, dual-crossover passive headphone, by setting up a wireless charging receiving coil and a matching driving circuit, can wirelessly charge the battery with an external wireless charger, which is very convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the earphone part of this utility model; Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a partial cross-sectional view of the earphone part and ear hook part of this utility model.

[0019] In the diagram: 1. Earphone part; 2. Ear hook part; 3. PCB board; 4. First speaker; 5. Battery; 6. Sound cavity; 7. Diaphragm; 8. Second speaker; 9. Mesh cover; 10. Bluetooth module; 11. Wireless charging receiver coil. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This embodiment of a two-channel, two-unit, two-way passive radiator earphone includes an earphone part 1 and an ear hook part 2 rotatably or fixedly connected to the earphone part 1. The earphone part 1 is provided with a PCB board 3 and a first speaker 4. The ear hook part 2 or the earphone part 1 is provided with a battery 5. The battery 5, the first speaker 4 and the PCB board 3 are electrically connected. The first speaker 4 is provided with a sound cavity 6 in front of it. The front end of the sound cavity 6 is provided with a diaphragm 7.

[0022] It should be noted that the storage battery 5 is the power source that provides power to the headphone unit 1.

[0023] In this embodiment, the earphone part 1 is also provided with a second speaker 8. The second speaker 8 is located on one side of the first speaker 4. The second speaker 8 is connected to the PCB board 3. The second speaker 8 is a tweeter. A mesh cover 9 is embedded in front of the second speaker 8.

[0024] It should be noted that PCB board 3, first speaker 4, and second speaker 8 are responsible for audio signal processing and sound playback.

[0025] In this embodiment, a Bluetooth module 10 is provided on the PCB board 3.

[0026] Specifically, the Bluetooth module 10 is located on the PCB board 3 to receive and decode wireless audio data sent by mobile phones and other devices. The decoded analog audio signal is split into two paths on the PCB board 3 by a passive frequency divider network. The low-frequency current is directly sent to the first speaker 4, and the high-frequency current is sent to the second speaker 8.

[0027] In this embodiment, the earphone part 1 further includes a wireless charging receiving coil 11 disposed inside the earphone part 1. The wireless charging receiving coil 11 is electrically connected to the PCB board 3. The PCB board 3 is provided with a wireless charging related driving circuit and is used to charge the battery 5.

[0028] It should be noted that the wireless charging receiving coil 11 inside the earphone part 1 is coupled with the transmitting coil of the external wireless charging board to generate an induced current. After being rectified and regulated by the wireless charging drive circuit on the PCB board 3, it wirelessly charges the battery 5.

[0029] In this embodiment, the cross-sectional shape of the ear loop 2 is set to C-shape.

[0030] In this embodiment, the mesh cover 9 is flush with the front end face of the earphone part 1.

[0031] In this embodiment, the sound cavity 6 is a stepped cylindrical structure with a smaller front and a larger rear. Its front outer diameter is smaller than its rear outer diameter. The diaphragm 7 is attached to the front end face of the sound cavity 6, and the outer edge of the diaphragm 7 is pressed and fixed by the front cover of the earphone part 1.

[0032] Specifically, the first speaker 4 has a sound cavity 6 in front of its diaphragm, and a diaphragm 7 is attached to the front end of the sound cavity 6. After the bass sound wave resonates in the sound cavity 6, it radiates outward through the diaphragm 7, which enhances the bass response and reduces distortion. The second speaker 8 directs the high-frequency sound wave towards the ear canal and extends the high frequency, achieving two-way crossover between the two units. The two sound waves are finally synthesized in the ear canal to form a rich and clearly positioned stereo sound field.

[0033] In this embodiment, the second speaker 8 is a disc-shaped tweeter with a diameter smaller than that of the first speaker 4, and the mesh cover 9 is a circular metal mesh concentric with the second speaker 8.

[0034] In this embodiment, the Bluetooth module 10 supports multiple Bluetooth protocols to ensure compatibility with different devices.

[0035] In this embodiment, the outer side of the earphone part 1 is provided with a sound outlet located at the front end of the diaphragm 7, and a dustproof mesh located in front of the diaphragm 7 is provided inside the sound outlet.

[0036] The working principle of the above embodiments is as follows: The Bluetooth module 10, located on the PCB board 3, receives and decodes wireless audio data sent by devices such as mobile phones. The decoded analog audio signal is split into two paths on the PCB board 3 by a passive crossover network. The low-frequency current is directly sent to the first speaker 4, and the high-frequency current is sent to the second speaker 8. The first speaker 4 has a sound cavity 6 in front of its diaphragm, and a diaphragm 7 is attached to the front end of the sound cavity 6. After the bass sound wave resonates in the sound cavity 6, it radiates outward through the diaphragm 7, which enhances the bass response and reduces distortion. The second speaker 8 directs the high-frequency sound wave towards the ear canal and extends the high frequency, achieving two-way crossover between the two units. The two sound waves are finally synthesized in the ear canal to form a rich and clearly positioned stereo sound field.

[0037] If this patent discloses or relates to components or structural parts that are fixedly connected to each other, then unless otherwise stated, a fixed connection can be understood as: a fixed connection that can be detached (e.g., using bolts or screws), or a fixed connection that cannot be detached (e.g., riveting, welding). Of course, a fixed connection can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A two-channel, two-unit, two-crossover passive radiator headphone, characterized in that: The device includes an earphone part and an ear hook part that is rotatably or fixedly connected to the earphone part. The earphone part has a PCB board and a first speaker inside. The ear hook part or the earphone part has a battery inside. The battery, the first speaker and the PCB board are electrically connected. A sound cavity is provided in front of the first speaker. A diaphragm is provided at the front end of the sound cavity.

2. The two-channel, two-unit, two-frequency-division passive radiator earphone according to claim 1, characterized in that: The earphone section is also provided with a second speaker, which is located to one side of the first speaker. The second speaker is connected to the PCB board and is a tweeter. A mesh cover is embedded in front of the second speaker.

3. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 2, characterized in that: A Bluetooth module is installed on the PCB board.

4. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 3, characterized in that: The earphone unit also includes a wireless charging receiving coil disposed inside the earphone unit. The wireless charging receiving coil is electrically connected to the PCB board. The PCB board is provided with wireless charging related driving circuitry and is used to charge the battery.

5. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 4, characterized in that: The cross-sectional shape of the ear loop is set to C-shape.

6. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 5, characterized in that: The mesh cover is flush with the front end of the earphone housing.

7. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 6, characterized in that: The sound cavity is a stepped cylindrical structure with a smaller front and a larger rear. Its front outer diameter is smaller than its rear outer diameter. The diaphragm is attached to the front end face of the sound cavity, and the outer edge of the diaphragm is pressed and fixed by the front cover of the earphone part.

8. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 7, characterized in that: The second speaker is a disc-shaped tweeter with a smaller diameter than the first speaker, and the mesh cover is a circular metal mesh concentric with the second speaker.

9. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 3, characterized in that: The Bluetooth module supports multiple Bluetooth protocols to ensure compatibility with different devices.

10. A two-channel, two-unit, two-frequency-division passive radiator headphone according to claim 1, characterized in that: The outer side of the earphone part has a sound outlet located at the front end of the diaphragm, and a dustproof mesh located in front of the diaphragm is provided inside the sound outlet.

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