Double-loudspeaker headphone

Abstract

The utility model discloses a double-horn headphone, comprising a headband and two ear casings connected to the left end and the right end of the headband, a woofer and a tweeter are arranged in each ear casing, and the woofer and the tweeter carry out frequency division processing in different ranges through a frequency division circuit. And the earphone can cooperate in a treble and bass area. According to the headphone, through cooperation of the woofer and the tweeter, harmonious combination of bass, alto and tweeter is realized, so that the overall hearing feeling is finer and the layers are distinct; the added tweeter can capture subtle changes in high-frequency signals and enhance details and definition of sound, so that the situation of high-pitch missing in a high-pitch area is avoided, and the pursuit of a user for high-quality audio experience is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to earphone technical field especially relates to a double loudspeaker head -wearing earphone.

BACKGROUND

[0002] In modern society, earphones are audio output tools of digital devices, almost everyone has one, especially most young people wear them for a long time. The styles of earphones are various, and the head-wearing earphone is one of them.

[0003] The head-wearing earphone on the current market generally adopts single loudspeaker design, that is, one loudspeaker driving unit is arranged in each ear shell on the left and right sides of the earphone for audio output, but the design of single loudspeaker causes high sound loss in the high sound area of the head-wearing earphone, directly affects the overall sound quality of the earphone, limits the richness and level of the listening experience, and is difficult to meet the demand of users for high-quality audio.

UTILITARY MODEL CONTENT

[0004] In order to solve the technical problem that the head-wearing earphone is prone to high sound loss in the high sound area, affects the overall sound quality of the earphone, and is difficult to meet the demand of users for high-quality audio, the utility model provides a double loudspeaker head-wearing earphone.

[0005] The utility model is realized by the following technical schemes:

[0006] A double loudspeaker head-wearing earphone, comprising a headband and two ear shells connected to the left and right ends of the headband, a bass loudspeaker and a treble loudspeaker are arranged in each of the two ear shells, and the bass loudspeaker and the treble loudspeaker cooperate in the bass and treble area to improve the overall sound quality of the earphone.

[0007] The bass loudspeaker and the treble loudspeaker are processed by a frequency division circuit in different sound areas, so that the earphone can cooperate in the bass and treble area.

[0008] The bass loudspeaker is a moving coil loudspeaker, and the treble loudspeaker is a MEMS loudspeaker.

[0009] The double loudspeaker head-wearing earphone comprises:

[0010] A digital-to-analog converter, the input end of the digital-to-analog converter is connected to a digital audio signal, and the digital-to-analog converter is used for converting the digital audio signal into an analog audio signal;

[0011] A frequency divider, the input end of the frequency divider is connected to the output end of the digital-to-analog converter, the output end of the frequency divider is connected to the bass loudspeaker and the treble loudspeaker, and the frequency divider is used for distributing the analog audio signal to the bass loudspeaker and the treble loudspeaker.

[0012] As described above, a dual-speaker over-ear headphone includes an inner ear shell, which includes a front speaker cover and a rear speaker cover. The front speaker cover has a mounting hole for mounting a tweeter on the side closest to the ear, and a speaker cavity is provided between the other side of the front speaker cover and the rear speaker cover. A woofer is installed inside the speaker cavity.

[0013] As described above, in a dual-speaker over-ear headphone, a bass tube frame is provided on the side of the front cover of the speaker near the ear, and a bass tube is installed on the bass tube to enhance the bass effect of the headphone.

[0014] As described above, in a dual-speaker over-ear headphone, both the speaker back cover and the sound output side of the speaker cavity are provided with noise-canceling microphones for reducing noise, and the outer side of the speaker cavity is provided with a tuning mesh for filtering and adjusting the sound.

[0015] As described above, a dual-speaker over-ear headphone further includes an outer ear shell, inside which is a circuit board and a power supply battery for powering the circuit board. A function button is provided on the side of the outer ear shell, and the function button is electrically connected to the circuit board.

[0016] As described above, the function buttons of the dual-speaker over-ear headphones include a power button, an NC noise cancellation switch button, a pause button, and a volume control button.

[0017] As described above, in a dual-speaker over-ear headphone, each of the two ear shells is connected to an earcup, and the earcup is connected to a sound-emitting mesh.

[0018] Compared with the prior art, the dual-speaker over-ear headphones proposed in this utility model have the following beneficial effects:

[0019] 1. The headphones proposed in this utility model include a bass speaker and a tweeter. Through the coordinated operation of the bass speaker and the tweeter, a harmonious blend of bass, midrange and treble is achieved, making the overall listening experience more delicate and layered. The added tweeter can capture subtle changes in high-frequency signals, enhance the detail and clarity of the sound, and thus prevent the loss of high frequencies, satisfying users' pursuit of a high-quality audio experience.

[0020] 2. The tweeter proposed in this utility model is a miniature speaker manufactured on a silicon chip using microfabrication technology. It has a very high frequency response, supports high-definition audio resolution, and can provide more accurate sound reproduction and higher sound detail and clarity in the high frequency range, which greatly improves the sound quality and listening experience of headphones.

[0021] 3. This utility model uses a frequency division circuit to make the woofer mainly operate in the low and mid frequency ranges, while the tweeter mainly operates in the high frequency range, thereby providing a more uniform and natural sound quality, allowing users to obtain a more delicate and realistic listening experience when listening to different styles of audio. [Attached Image Description]

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the ear shell structure of this utility model;

[0025] Figure 3 This is an exploded view of the inner ear shell of this utility model;

[0026] Figure 4 This is an exploded view of the outer ear shell of this utility model;

[0027] Figure 5 This is a schematic diagram of the frequency divider circuit of this utility model.

Detailed Implementation Methods

[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] Specific embodiments, combined with Figures 1 to 5 As shown, the technical solution of this utility model is further explained: a dual-speaker over-ear headphone includes a headband 10 and two ear shells 11 connected to the left and right ends of the headband 10. Each of the two ear shells 11 is equipped with a bass speaker 21 and a tweeter 22. The bass speaker 21 and tweeter 22 work together in the high and low frequency ranges to improve the overall sound quality of the headphones. Through the coordinated operation of the bass speaker 21 and tweeter 22, this over-ear headphone achieves a harmonious blend of bass, mid-range, and treble frequencies, resulting in a more delicate and layered overall listening experience. The added tweeter 22 can capture subtle changes in high-frequency signals, enhancing the detail and clarity of the sound, thus preventing the loss of high frequencies and satisfying users' pursuit of a high-quality audio experience.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the woofer 21 is a dynamic woofer and the tweeter 22 is a MEMS woofer.

[0031] In this embodiment, the subwoofer is a mature and widely used dynamic driver, which has high efficiency and high reliability, and can provide good sound quality in the low-frequency range to the mid-frequency range; at the same time, the dynamic driver can provide deep and powerful bass in the low-frequency range, so that the headphones can also provide users with a more delicate and rich listening experience in the low-frequency range.

[0032] MEMS (Micro-Electro-Mechanical Systems) speakers are miniature speakers manufactured on silicon chips using microfabrication technology. They have a very high frequency response and support high-definition audio resolution. In the high frequency range, MEMS speakers can provide more accurate sound reproduction and higher sound detail and clarity, which greatly improves the sound quality and listening experience of headphones.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the woofer 21 and tweeter 22 are frequency-divided in different frequency ranges through a frequency division circuit, so that the headphones can work together in the high and low frequency ranges. The frequency division circuit includes a digital-to-analog converter and a frequency divider. The input terminal of the digital-to-analog converter is connected to a digital audio signal, and the digital-to-analog converter is used to convert the digital audio signal into an analog audio signal. The input terminal of the frequency divider is connected to the output terminal of the digital-to-analog converter, and the output terminal of the frequency divider is connected to the woofer 21 and tweeter 22. The frequency divider is used to distribute the analog audio signal to the woofer 21 and tweeter 22.

[0034] in, Figure 5 This is the schematic diagram of the crossover circuit for the woofer 21 and the tweeter 22. Figure 5 U5 and U7 are connected to tweeter 22, and SPKL and SPKR are connected to woofer;

[0035] Specifically, the audio signal enters the system from an external source through the interface on the left side of the circuit. The digital audio signal is converted into an analog audio signal by a digital-to-analog converter (DAC, component U32). The analog audio signal is then sent to the crossover (U4 and U6). The output of the crossover is first connected to the woofers 21 (SPKL and SPKR). This part of the signal is processed by a filter network composed of capacitors (C9 and C10) and inductors (L2) to help adjust the frequency response of the signal and ensure that the main audio content (such as vocals and most instrument sounds) is played effectively. The signal processing before the tweeter 22 includes the selection and enhancement of high-frequency signals through specific filters (formed by resistors R1 and R5, capacitors C4 and C8 and other connected components) to ensure that the tweeter 22 only plays the audio frequency band it is best at. Finally, the filtered audio signal is distributed to the tweeters 22 (U5 and U7).

[0036] In this embodiment, the crossover circuit allows the woofer to operate primarily in the low and mid-range frequencies, while the tweeter operates primarily in the high-range, thus providing a more uniform and natural sound quality. This allows users to have a more delicate and realistic listening experience when listening to different styles of audio.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the ear shell 11 includes an inner ear shell 12, the inner ear shell 12 includes a front speaker cover 121 and a rear speaker cover 122, the front speaker cover 121 is provided with a mounting hole 1211 for mounting a tweeter 22 on the side near the ear, a speaker cavity 123 is provided between the other side of the front speaker cover 121 and the rear speaker cover 122, a woofer 21 is installed in the cavity of the speaker cavity 123, and a tuning screen 25 for filtering and adjusting sound is provided on the outside of the speaker cavity 123;

[0038] The speaker front cover 121 is also provided with a bass tube frame 1212 on the side near the ear, and the bass tube frame 1212 is equipped with a bass tube 23 for enhancing the bass effect of the headphones.

[0039] In this embodiment, the bass tube can effectively enhance the bass effect of the headphones and enhance the resonance effect of the low frequency band, making the bass more powerful and robust; the tuning mesh can not only filter dust and other impurities to prevent them from entering the speaker cavity and affecting the audio effect of the headphones, but also adjust the sound, making the overall sound quality smoother and more natural.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, both the speaker rear cover 122 and the speaker cavity 123 are provided with noise-canceling microphones 24 for reducing noise, and the noise-canceling microphones 24 are FB MICs.

[0041] The speaker rear cover 122 has two noise-canceling microphones.

[0042] In this embodiment, the FB MIC noise-canceling microphone is used to capture noise entering the user's ear and feed it back to the noise-canceling system. By analyzing and generating anti-phase sound waves, the noise is canceled out, achieving an active noise cancellation effect. This allows users to enjoy a more immersive audio experience or clear call quality in any environment, thereby satisfying users' pursuit of a high-quality music experience. The collaborative work of multiple noise-canceling microphones can better identify and filter noise, resulting in a better noise cancellation effect.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation, the ear shell 11 also includes an outer ear shell 13, which contains a circuit board 131 and a power supply battery 132 for powering the circuit board 131. The outer ear shell 13 also has a function button 133 on its side, which is electrically connected to the circuit board 131. The function button 133 includes a power on / off switch, an NC noise reduction switch, a pause button, and a volume control button.

[0044] In addition, in this embodiment, the function buttons 133 are distributed as follows: the function buttons on the earcups 11 near the left end of the headband 10 are the power on / off button and the NC noise cancellation switch button; the function buttons on the earcups 11 near the right end of the headband 10 are the pause button and the volume adjustment button. In specific design and development, the distribution of the function buttons 133 can be adjusted or added or deleted according to actual needs.

[0045] In this embodiment, the design of the function buttons allows users to quickly access and control the main functions of the headphones without relying on external devices or applications, improving the intelligence and ease of use of the headphones; in addition, the intelligent operation allows users to have a smoother user experience, thereby improving user satisfaction.

[0046] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, both of the ear shells 11 are connected to ear covers 14, and a sound-emitting mesh (not shown in the figure) is connected inside the ear covers 14.

[0047] Those skilled in the art should understand that the above description is one embodiment provided in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Furthermore, due to differences in industry naming conventions, it is not limited to the above names or English names. Any methods or structures similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A dual-speaker over-ear headphone, characterized in that, Includes a headband (10) and two ear shells (11) connected to the left and right ends of the headband (10). Each of the two ear shells (11) is equipped with a bass speaker (21) and a tweeter (22). The bass speaker (21) and the tweeter (22) are divided into different frequency ranges through a frequency division circuit, so that the headphones can work together in the high and low frequency ranges. The frequency divider circuit includes: A digital-to-analog converter, wherein the input terminal of the digital-to-analog converter is connected to a digital audio signal, and the digital-to-analog converter is used to convert the digital audio signal into an analog audio signal; A frequency divider, the input of which is connected to the output of a digital-to-analog converter, and the output of which is connected to a woofer (21) and a tweeter (22), the frequency divider being used to distribute analog audio signals to the woofer (21) and the tweeter (22).

2. The dual-speaker over-ear headphone according to claim 1, characterized in that, The woofer (21) is a dynamic woofer, and the tweeter (22) is a MEMS woofer.

3. The dual-speaker over-ear headphone according to claim 1, characterized in that, The ear shell (11) includes an inner ear shell (12), which includes a front cover (121) and a rear cover (122). The front cover (121) has a mounting hole (1211) for mounting a tweeter (22) on the side closest to the ear. A horn cavity (123) is provided between the other side of the front cover (121) and the rear cover (122). A woofer (21) is installed inside the horn cavity (123).

4. A dual-speaker over-ear headphone according to claim 3, characterized in that, The speaker front cover (121) is also provided with a bass tube frame (1212) on the side near the ear, and the bass tube frame (1212) is equipped with a bass tube (23) for enhancing the bass effect of the headphones.

5. A dual-speaker over-ear headphone according to claim 4, characterized in that, The speaker rear cover (122) and the speaker cavity (123) are both provided with noise-canceling microphones (24) for reducing noise on the sound output side, and the speaker cavity (123) is provided with a tuning screen (25) for filtering and adjusting the sound on the outside.

6. A dual-speaker over-ear headphone according to claim 1, characterized in that, The ear shell (11) also includes an outer ear shell (13), which has a circuit board (131) and a power supply battery (132) for powering the circuit board (131) inside. The outer ear shell (13) has a function button (133) on its side, which is electrically connected to the circuit board (131).

7. A dual-speaker over-ear headphone according to claim 6, characterized in that, The function buttons (133) include a power switch, an NC noise reduction switch, a pause button, and a volume control button.

8. A dual-speaker over-ear headphone according to claim 1, characterized in that, Both of the ear shells (11) are connected to ear covers (14), and the ear covers (14) are connected to sound-emitting mesh.

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