Dual-channel frequency division earphone

Abstract

The invention discloses a dual-channel frequency-dividing earphone, comprising a coaxial front cavity, a rear cavity, a speaker, a conduit, and a tuning paper, wherein the interior of the conduit is a first sound outlet channel, the space between the outer periphery of the conduit and the inner wall of the front cavity is a second sound outlet channel, the tuning paper pasted on the sound outlet of the front cavity is 100-400 mesh, and the tuning paper pasted on the front end of the conduit is 500-1000 mesh. The invention has a simple structure, realizes effective separation of medium and low frequencies from medium and high frequencies, thereby achieving improvement of sound quality, making the spatial sense of music better, the spatial positioning more accurate, and the sense of hierarchy stronger, and having a more immersive auditory effect in listening to music, watching movies, playing games, and VR; the bass part is more condensed, making the bass more solid and thick in the sense of hearing, enhancing the bass effect, and having a strong sound restoration.

Description

Technical Field

[0001] The present invention relates to the technical field of earphones, and in particular to a dual-channel frequency-dividing earphone. Background Art

[0002] Music, movies, games, and VR products have greatly enriched people's daily entertainment life, and the headphones that match them are particularly important. Good headphones can restore the sound more realistically, allowing us to better appreciate the works. However, due to factors such as its internal structure, traditional headphones have average sound quality and frequency domain separation, which greatly reduces the enjoyment of hearing. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a dual-channel frequency-divided headset with a simple structure, which can effectively separate the mid-low frequency and the mid-high frequency, thereby improving the sound quality, making the music have a better sense of space, more accurate spatial positioning, and a stronger sense of layering, so that when listening to music, watching movies, playing games, and VR, there is a more immersive auditory effect; the bass part is more condensed, making the bass sound more solid and thick, enhancing the bass effect, and having a strong sound restoration ability.

[0004] The object of the present invention is achieved through the following technical solutions: a dual-channel frequency-dividing earphone, comprising a coaxial front cavity, a rear cavity, a speaker, a conduit, and a tuning paper;

[0005] The front cavity is hollow and has front and rear openings, and the front cavity is coaxial with its front and rear openings. The front opening of the front cavity is a sound outlet of the front cavity, and tuning paper is pasted on the sound outlet of the front cavity. An annular protrusion is arranged in the middle of the inner wall of the front cavity. The outer diameter of the speaker matches the inner diameter of the rear half of the front cavity, and the inner diameter of the front half of the front cavity is larger than the outer diameter of the hollow conduit with openings at both ends.

[0006] The rear cavity is hollow and open at the front, the outer diameter of the front opening of the rear cavity matches the inner diameter of the rear opening of the front cavity, the two are sleeved, the side of the rear cavity is opened with a rear cavity sound outlet hole, the side of the rear cavity is fixed with a hollow outlet positioning plug, and the outlet positioning plug is connected with the sound outlet hole;

[0007] A first sound outlet is arranged at the central axis of the front end of the speaker, and second sound outlets are arranged on both sides thereof. A coaxial hollow connecting tube is fixed to the outer periphery of the first sound outlet, and the outer diameter of the connecting tube matches the inner diameter of the conduit. The rear end of the conduit is nested and bonded with the connecting tube, and a tuning paper is pasted on the front end of the conduit.

[0008] The speaker is accommodated in the rear half of the front cavity and its front end is sealed and fixed to the annular protrusion. The side periphery of the speaker is sealed and connected to the inner wall of the front cavity. The conduit is accommodated in the front half of the front cavity. The interior of the conduit is a first sound outlet channel, and the space between the outer periphery of the conduit and the inner wall of the front cavity is a second sound outlet channel.

[0009] The tuning paper pasted on the sound outlet of the front cavity has a mesh size of 500-1000, and the tuning paper pasted on the front end of the conduit has a mesh size of 100-400.

[0010] Preferably, the audio transmitted through the first audio output channel is 20-2000 Hz, and the audio transmitted through the second audio output channel is greater than 2000 Hz;

[0011] Preferably, the tuning paper may also be tuning cotton;

[0012] Preferably, the catheter is made of elastic material.

[0013] Preferably, the elastic material may be PVC, TPU, EVA, TPE, TPR, or modified rubber.

[0014] Working principle: The audio signal is input from the audio signal input port and then enters the speaker, where it is converted into sound. The sound will be transmitted to the front cavity outlet along the first and second sound output channels. The front cavity outlet is pasted with 100-400 mesh tuning paper, and the front end of the duct is pasted with 500-1000 mesh tuning paper. The air permeability of the first channel is 500-1000 mesh, which limits the transmission of sounds above the frequency band of 2000HZ and transmits sounds in the frequency band of 20-2000HZ. The air permeability of the second sound output channel is 100-400 mesh, which can smoothly transmit sounds in the frequency band above 2000HZ, so that the mid-low frequency and mid-high frequency of the sound are transmitted through two different channels, thereby realizing the role of frequency division. At the same time, since the bass part is directly transmitted through the duct, the divergence of the sound is avoided, making the bass part more condensed, making the bass more solid and thick in listening, and enhancing the bass effect.

[0015] By changing the air permeability of the first and second channels, the transmission of sound in different frequency bands can be limited.

[0016] The beneficial effects of the present invention are:

[0017] (1) Simple structure;

[0018] (2) Effectively separate the mid-low frequency and the mid-high frequency, thereby improving the sound quality, making the music space feel better, the spatial positioning more accurate, and the sense of layering stronger, making the listening experience more immersive when listening to music, watching movies, playing games, and VR;

[0019] (3) The bass part is more cohesive, making the bass sound more solid and rich, enhancing the bass effect and the sound restoration ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is an exploded view of the present invention;

[0022] Figure 2 It is a cross-sectional view of the present invention;

[0023] Figure 1 , Figure 2 In the figure, 1-front cavity, 2-rear cavity, 3-speaker, 4-duct, 5-tuning paper or tuning cotton, 11-front cavity sound outlet, 12-annular protrusion, 21-rear cavity sound outlet, 22-line positioning plug, 31-first sound outlet, 32-second sound outlet, 33-connecting tube. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] like Figure 1 , Figure 2 As shown, a dual-channel frequency-dividing earphone comprises a coaxial front cavity 1, a rear cavity 2, a speaker 3, a conduit 4, and a tuning paper 5;

[0027] The front cavity 1 is hollow and has front and rear openings, and the front cavity 1 is coaxial with its front and rear openings. The front opening of the front cavity 1 is a front cavity sound outlet 11, and a tuning paper is pasted on the front cavity sound outlet 11. An annular protrusion 12 is arranged in the middle of the inner wall of the front cavity 1. The outer diameter of the speaker 3 matches the inner diameter of the rear half of the front cavity 1, and the inner diameter of the front half of the front cavity 1 is larger than the outer diameter of the hollow conduit 4 with front and rear openings.

[0028] The rear cavity 2 is hollow and open at the front. The outer diameter of the front opening of the rear cavity 2 matches the inner diameter of the rear opening of the front cavity 1. The two are sleeved. A rear cavity sound outlet hole 21 is opened on the side of the rear cavity 2. A hollow outlet positioning plug 22 is fixed on the side of the rear cavity 2. The outlet positioning plug 22 is communicated with the sound outlet hole 21.

[0029] A first sound outlet 31 is arranged at the central axis of the front end of the speaker 3, and second sound outlets 32 are arranged on both sides thereof. A coaxial hollow connecting tube 33 is fixed to the outer periphery of the first sound outlet 31, and the outer diameter of the connecting tube 33 matches the inner diameter of the conduit 4. The rear end of the conduit 4 is nested and bonded with the connecting tube 33, and a tuning paper 5 is pasted on the front end of the conduit 4.

[0030] The speaker 3 is accommodated in the rear half of the front cavity 1 and its front end is sealed and fixed to the annular protrusion 12. The side of the speaker 3 is sealed and connected to the inner wall of the front cavity 1. The conduit 4 is accommodated in the front half of the front cavity 1. The interior of the conduit 4 is a first sound outlet channel, and the space between the outer periphery of the conduit and the inner wall of the front cavity is a second sound outlet channel.

[0031] The tuning paper 5 of the front cavity sound outlet 11 has a mesh size of 500-1000, and the tuning paper 5 at the front end of the conduit 4 has a mesh size of 100-400.

[0032] In this embodiment, the audio transmitted through the first sound output channel is 20-2000HZ, and the audio transmitted through the second sound output channel is greater than 2000HZ. The tuning paper 5 can also be tuning cotton, and the conduit 4 is made of elastic material, which can be PVC, TPU, EVA, TPE, TPR, or modified rubber.

[0033] The invention has a simple structure and can effectively separate the mid-low frequency from the mid-high frequency, thereby improving the sound quality, making the music space feel better, the spatial positioning more accurate, and the sense of hierarchy stronger, so that the user can have a more immersive auditory effect when listening to music, watching movies, playing games, and VR. The bass part is more condensed, making the bass more solid and rich in hearing, thereby enhancing the bass effect and achieving strong sound restoration.

[0034] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A dual-channel frequency division headset, characterized in that: It includes a coaxial front cavity, a rear cavity, a speaker, a conduit, and tuning paper; The front cavity is hollow and has front and rear openings, and the front cavity is coaxial with its front and rear openings. The front opening of the front cavity is a sound outlet of the front cavity, and tuning paper is pasted on the sound outlet of the front cavity. An annular protrusion is arranged in the middle of the inner wall of the front cavity. The outer diameter of the speaker matches the inner diameter of the rear half of the front cavity, and the inner diameter of the front half of the front cavity is larger than the outer diameter of the hollow conduit with openings at both ends. The rear cavity is hollow and open at the front, the outer diameter of the front opening of the rear cavity matches the inner diameter of the rear opening of the front cavity, the two are sleeved, the side of the rear cavity is opened with a rear cavity sound outlet hole, the side of the rear cavity is fixed with a hollow outlet positioning plug, and the outlet positioning plug is connected with the sound outlet hole; A first sound outlet is arranged at the central axis of the front end of the speaker, and second sound outlets are arranged on both sides thereof. A coaxial hollow connecting tube is fixed to the outer periphery of the first sound outlet, and the outer diameter of the connecting tube matches the inner diameter of the conduit. The rear end of the conduit is nested and bonded with the connecting tube, and a tuning paper is pasted on the front end of the conduit. The speaker is accommodated in the rear half of the front cavity and its front end is sealed and fixed to the annular protrusion. The side periphery of the speaker is sealed and connected to the inner wall of the front cavity. The conduit is accommodated in the front half of the front cavity. The interior of the conduit is a first sound outlet channel. The space between the outer periphery of the conduit and the inner wall of the front cavity is a second sound outlet channel. The audio transmitted by the first sound outlet channel is 20-2000HZ, and the audio transmitted through the second sound outlet channel is greater than 2000HZ. The tuning paper pasted on the sound outlet of the front cavity has a mesh size of 500-1000, the tuning paper pasted on the front end of the conduit has a mesh size of 100-400, and the conduit is made of elastic material.

2. The dual-channel frequency division headset according to claim 1, characterized in that: The tuning paper can also be tuning cotton.

3. The dual-channel frequency division headset according to claim 1, characterized in that: The elastic material may be PVC, TPU, EVA, TPE, TPR, or modified rubber.

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