A headset

Abstract

The present invention discloses an earphone, wherein a transverse partition located within the earphone cavity separates the earphone cavity into an acoustic cavity and an external cavity. A speaker unit comprises: a speaker bracket, a woofer and a tweeter mounted within the speaker bracket. The speaker unit is mounted within the acoustic cavity and separates the acoustic cavity into a front acoustic cavity and a rear acoustic cavity. The rear acoustic cavity is isolated into a bass rear acoustic cavity connected to the woofer and a treble rear acoustic cavity connected to the tweeter. The housing body is provided with a sound outlet connected to the front acoustic cavity, a bass tuning hole connected to the bass rear acoustic cavity, and a treble tuning hole connected to the treble rear acoustic cavity. The present invention provides treble and woofer speakers in the earphone, and employs independent sound leakage cavities to optimize airflow paths for different frequency bands, avoid frequency band interference, isolate low-frequency energy, and maintain high-frequency clarity. The independently designed sound leakage cavities can retain a complete frequency response curve.

Description

Technical Field

[0001] The invention belongs to the technical field of earphone products, and in particular relates to an earphone with a tweeter and a woofer. Background Art

[0002] The earphone's mid-range cavity consists of a front and rear cavities. The rear cavity is equipped with a tuning hole (also known as a pressure relief hole or vent). The tuning hole balances air pressure and improves wearing comfort. When the earphones are sealed, the vibration of the diaphragm causes pressure changes within the cavity (especially at low frequencies), which can cause a sense of pressure on the eardrum. The tuning hole relieves pressure, preventing the "stuffy" effect and improving comfort during extended wear.

[0003] In addition, in order to improve the sound quality of headphones, Bluetooth headphones with multiple speaker units are currently available on the market. Such headphones are equipped with at least two speakers. These two speakers are a woofer and a tweeter, which produce mid-bass or mid-high tones through a frequency division circuit. A common approach is to place the tweeter and woofer in a sound cavity within the headphone cavity. See patent document number CN210536918U, entitled "A Utility Model Patent for In-Ear Headphones," which adopts the following technical solution: a two-way frequency division circuit module is provided within the headphone housing, as well as a mid-high frequency speaker and a mid-low frequency speaker respectively connected to the audio output end of the two-way frequency division circuit module; independent front cavities are provided between the sound-emitting sides of the mid-high frequency speaker and the mid-low frequency speaker and the inner wall of the headphone housing; the outlets of the two sets of front cavities are connected to a sound guide tube, and a middle partition is provided within the sound guide tube. The middle partition divides the headphone into a mid-high frequency sound output channel corresponding to the mid-high frequency speaker and a mid-low frequency sound output channel corresponding to the mid-low frequency speaker.

[0004] The two speakers in the above-mentioned prior art are arranged horizontally. Since the overall size of general headphones is relatively small, this method is difficult to implement for ordinary headphones. Therefore, most of the products currently used are coaxial composite dual-speaker products, which use a coaxial structure to combine tweeters and woofers. For example, the utility model patent with the patent document number CN222464803U and the name is a coaxial tweeter and bass speaker; the utility model patent with the patent document number CN218336418U and the name is a dynamic flat-panel composite coaxial loudspeaker. Although this coaxial composite dual-speaker product can be directly used in headphones, the two speakers share the front sound cavity and the rear sound cavity (pressure relief cavity). Since the strong air pressure fluctuations of the low frequency share the cavity with the high frequency, it may cause high-frequency distortion or interference distortion.

[0005] In view of the above, the present invention proposes the following technical solutions. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide an earphone that combines a tweeter and a woofer. The earphone has a tweeter and a woofer arranged in parallel, and the tweeter and the woofer adopt an independent rear sound cavity design, which is conducive to optimizing the acoustic characteristics of different frequency bands, avoiding mutual interference, and thus improving the overall sound quality.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solution: the earphone includes: a shell body, a cover body, a transverse partition, a speaker unit and a circuit board, wherein the shell body and the cover body cooperate with each other to form an earphone cavity, the transverse partition located in the earphone cavity divides the earphone cavity into a sound cavity and an external cavity, the circuit board is located in the external cavity and is mounted on the transverse partition; the speaker unit includes: a speaker bracket and a woofer and a tweeter mounted in the speaker bracket, the speaker unit is mounted in the sound cavity, and the speaker unit divides the sound cavity into a front sound cavity and a rear sound cavity, the rear sound cavity is isolated into a bass rear sound cavity connected to the woofer, and a treble rear sound cavity connected to the tweeter; the shell body is provided with a sound outlet connected to the front sound cavity, a bass tuning hole connected to the bass rear sound cavity, and a treble tuning hole connected to the treble rear sound cavity; the sound generated by the woofer enters the front sound cavity and is conducted out through the sound outlet; the sound generated by the tweeter enters the front sound cavity and is conducted out through the sound outlet.

[0008] Furthermore, in the above technical solution, a longitudinal partition is integrally formed in the shell body, and the internal cavity of the shell body is divided into a left space and a right space by the longitudinal partition. The left space cooperates with the transverse partition to form the sound cavity; the outer cavity is connected to the right space.

[0009] Furthermore, in the above technical solution, a microphone groove is formed in the right space, and a sound receiving pipe is installed in the microphone groove. One end of the sound receiving pipe is connected to the sound receiving hole on the shell body, and the other end of the sound receiving pipe is connected to the sound receiving microphone on the circuit board.

[0010] Furthermore, in the above technical solution, the woofer and tweeter are arranged horizontally and installed in a speaker bracket, and a bass communication hole and a treble communication hole are opened on the speaker bracket; the back of the woofer is connected to the bass rear sound cavity through the bass communication hole, and the back of the tweeter is connected to the treble rear sound cavity through the treble communication hole.

[0011] Furthermore, in the above technical solution, the volume ratio of the bass rear cavity and the treble rear cavity is 1:2~1:3.

[0012] Furthermore, in the above technical solution, a first positioning portion, a second positioning portion and a third positioning portion are sequentially provided on the inner wall of the shell body from the opening end downward, wherein the first positioning portion is used to cooperate with the cover body to achieve a fixed connection between the shell body and the cover body; the second positioning portion is used to cooperate with the horizontal partition; and the third positioning portion cooperates with the outer edge of the speaker bracket.

[0013] Furthermore, in the above technical solution, the bass tuning hole and the treble tuning hole provided in the shell body are located between the second positioning portion and the third positioning portion.

[0014] Furthermore, in the above technical solution, a snap-fit piece is formed at the open end of the transverse partition, and the transverse partition is positioned in the second positioning portion by the snap-fitting between the snap-fit piece and the side wall of the shell body; notches are respectively provided on both sides of the open end of the transverse partition corresponding to the positions of the bass tuning hole and the treble tuning hole.

[0015] Furthermore, in the above technical solution, the earphone is an ear-hook earphone, which includes an earphone part and an ear-hook part. The shell body, cover body, transverse partition, speaker unit and circuit board constitute the earphone part; the woofer and tweeter are installed side by side along the long axis direction of the earphone.

[0016] Furthermore, in the above technical solution, the sound outlet is located in the middle area between the woofer and the tweeter.

[0017] After adopting the above technical solution, the present invention has the following advantages over the existing technology: the present invention sets high and low frequency speakers in the earphones, and adopts independent sound leakage chambers to optimize the airflow path for different frequency bands, avoid frequency band interference, isolate low-frequency energy, and keep high-frequency clarity. The independently designed sound leakage chamber can retain the complete frequency response curve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of the present invention from a first viewing angle;

[0019] Figure 2 is a stereogram of the second viewing angle of the present invention;

[0020] Figure 3 is a stereogram of the present invention from a third viewing angle;

[0021] Figure 4 It is an exploded perspective view of the present invention;

[0022] Figure 5 is a perspective view of a transverse partition in the present invention;

[0023] Figure 6 is a three-dimensional diagram of the housing body of the present invention;

[0024] Figure 7 is a three-dimensional diagram of the speaker unit of the present invention;

[0025] Figure 8 is a cross-sectional view of the earphone of the present invention along the long axis direction;

[0026] Figure 9 It is a cross-sectional view of the present invention along the minor axis direction of the earphone part. DETAILED DESCRIPTION

[0027] The present invention will be further described below by taking an earhook headset as an example and with reference to the accompanying drawings.

[0028] See Figures 1 to 9 As shown, this embodiment is an earhook headphone, which includes an earphone portion 91 and an earhook portion 92. The sound-producing portion of the headphone is installed in the earphone portion 91, and the battery power supply portion is installed in the earhook portion 92. The earhook headphone is worn on the user's auricle via the earhook portion 92.

[0029] Typically, the earphone portion 91 of an earhook headphone is generally shaped like an oblong or ellipse. That is, its length along the major axis is greater than its length along the minor axis. Compared to earbud-style headphones, the earphone portion 91 of an earhook headphone has a relatively large lateral space. With a reasonable structural design, two speakers can be installed side by side, thereby achieving independent high and low-frequency sound effects through a frequency divider circuit.

[0030] Combine Figure 3 As shown, the earphone unit 91 of the embodiment of the present invention includes: a housing body 1, a cover body 2, a transverse partition 3, a speaker unit 4, and a circuit board 5. The housing body 1 has a cavity, and the cover body 2 is fixed to the open end of the cavity by snap fastening or welding. The housing body 1 and the cover body 2 cooperate to form the earphone housing of the earphone unit 91, and the earphone cavity 100 is formed within the earphone housing.

[0031] The lower end surface of the housing body 1 is provided with a sound outlet 10, and the front and rear opposite sides of the housing body 1 are respectively provided with a bass tuning hole 11 and a treble tuning hole 12. Sound nets are respectively installed at the sound outlet 10, the bass tuning hole 11 and the treble tuning hole 12.

[0032] A sound receiving hole 15 is further provided on one side of the housing body 1 connected to the ear hook 92 , and the sound receiving hole 15 is used for receiving sound by the microphone 6 for conversation.

[0033] The transverse partition 3 is installed horizontally in the earphone cavity 100, dividing the earphone cavity 100 into: a sound cavity 101 on the lower side and an external cavity 102 on the upper side. The sound cavity 101 is used to install the speaker unit 4, and the circuit board 5 is located in the external cavity 102 and is fixedly installed above the transverse partition 3.

[0034] The shell body 1 is integrally formed with a longitudinal partition 13, which divides the housing cavity of the shell body 1 into a left space and a right space 105. The left space cooperates with the transverse partition 3 to form the sound cavity 101 of the earphone part 91; the outer cavity 102 is connected to the right space 105.

[0035] The right side space 105 is used to house other components of the headset. In this embodiment, a microphone slot 14 is provided within the right side space 105. This slot is integrally formed with the housing 1. A sound receiving duct 61 is mounted within this slot. One end of this duct communicates with the sound receiving hole 15 in the housing 1, and the other end of this duct connects to the sound receiving microphone 6 on the circuit board 5. The headset's charging electrodes and the magnet 8 used for charging and alignment are also housed within the right side space 105.

[0036] Combine Figure 8 As shown, the sound cavity 101 of the present invention forms a relatively independent cavity through the horizontal partition 3 and the longitudinal partition 13, which is used to install the speaker unit 4, thereby isolating the sound-emitting part from other components, which not only facilitates assembly but also avoids interference between the assembled components.

[0037] The speaker unit 4 includes a speaker stand 40, a woofer 41, and a tweeter 42 mounted within the speaker stand 40. The speaker unit 4 is mounted within the sound cavity 101 and divides the sound cavity 101 into a front sound cavity 103 adjacent to the sound outlet 10 and a rear sound cavity 104 adjacent to the transverse partition 3. The rear sound cavity 104 is separated into a rear bass cavity 1041 communicating with the woofer 41 and a rear tweeter cavity 1042 communicating with the tweeter 42.

[0038] The speaker bracket 40 is shaped like a cap with a downward opening, and the woofer 41 and tweeter 42 are mounted side by side along the long axis of the earphone portion 91. The sound-emitting surfaces of the two speakers face downward toward the sound outlet 10, meaning that the two speakers share a common front sound cavity 103. To avoid attenuation caused by sound wave reflection, the diameter of the opening area of the sound outlet 10 matches the diameter of the speaker's sound-emitting surface, and the sound outlet 10 should be located roughly between the woofer 41 and tweeter 42. In this way, the sound emitted by the woofer 41 and tweeter 42, after entering the front sound cavity 103, can be directly output from the sound outlet 10, reducing attenuation caused by sound reflection.

[0039] The top portion of the speaker bracket 40 is tightly integrated with the bottom surface of the transverse partition 3. The speaker bracket 40 divides the rear acoustic cavity 104 into two independent areas: a bass rear acoustic cavity 1041 connected to the woofer 41, and a treble rear acoustic cavity 1042 connected to the tweeter 42. Specifically, two opposing side surfaces of the top of the speaker bracket 40 are provided with a bass communication hole 401 and a treble communication hole 402. The bass communication hole 401 communicates with the rear side of the diaphragm of the woofer 41, while the treble communication hole 402 communicates with the rear side of the diaphragm of the tweeter 42. Simultaneously, the bass communication hole 401 communicates with the bass rear acoustic cavity 1041, while the treble communication hole 402 communicates with the treble rear acoustic cavity 1042. This ensures that the bass rear acoustic cavity 1041 and the treble rear acoustic cavity 1042, acting as sound leakage cavities for the woofer 41 and tweeter 42, respectively, are isolated from each other and do not interfere with each other.

[0040] In headphones with dual speakers for treble and woofer, the sonic characteristics of treble and bass differ significantly. Low frequencies have longer wavelengths, requiring larger air chambers and slower pressure release, while high frequencies have shorter wavelengths and require rapid pressure release to reduce reflections and phase distortion. The present invention utilizes independent sound leakage chambers for the treble and woofer speakers to optimize airflow paths for different frequency bands, avoid frequency interference, isolate low-frequency energy, and maintain high-frequency clarity. The independently designed sound leakage chambers preserve a complete frequency response curve.

[0041] In addition, since the wavelength of low frequencies is longer for woofers, a larger air chamber and slower air pressure release are required. Therefore, in this embodiment, the sizes of the woofer rear cavity 1041 and the treble rear cavity 1042 can be adjusted as needed. Typically, the volume ratio of the woofer rear cavity 1041 to the treble rear cavity 1042 is 1:2 to 1:3.

[0042] During installation, the inner wall of the housing body 1 is provided with a first positioning portion 16, a second positioning portion 17, and a third positioning portion 18, arranged in order from the open end downward. The first positioning portion 16 is configured to mate with the cover 2 to securely connect the housing body 1 and the cover 2. The second positioning portion 17 is configured to mate with the transverse partition 3. The third positioning portion 18 mates with the outer edge of the speaker bracket 40.

[0043] The bass tuning hole 11 and the treble tuning hole 12 formed in the housing body 1 are located between the second positioning portion 17 and the third positioning portion 18 .

[0044] Combine Figure 5 、 Figure 9As shown, the transverse baffle 3 is generally shaped like a cap with a downward opening, and its top surface is formed with a positioning pin for securing the circuit board 5. A latch 31 is formed at the open end of the transverse baffle 3. The latch 31 engages with the snap-fit on the side wall of the housing body 1 to position the transverse baffle 3 on the second positioning portion 17. To ensure communication between the bass tuning hole 11 and the treble tuning hole 12 and the bass rear sound cavity 1041 and the treble rear sound cavity 1042, notches 32 are provided on either side of the open end of the transverse baffle 3.

[0045] An upper notch 30 is formed at the lower end of the sidewall of the transverse partition 3 adjacent to the longitudinal partition 13, and a corresponding lower notch 130 is formed on the longitudinal partition 13. The upper and lower notches form a hole for inserting wires. Wiring holes 400 are formed in the speaker bracket 40 at positions corresponding to the upper notch 30 and lower notch 130, for connecting the woofer 41 and tweeter 42 to the circuit board 5 via wires.

[0046] Furthermore, a touch control FPC board 7 is installed on the inner surface of the cover 2, above the circuit board 5. The FPC board 7 is electrically connected to the circuit board 5 via electrodes. A noise reduction hole 21 is provided in the cover 2. This hole 21 corresponds to a noise reduction microphone 62 on the circuit board 5 and is used to collect external noise from the earphones.

[0047] During operation, the sound generated by the woofer 41 enters the front sound cavity 103 and is conducted out through the sound outlet 10; the bass rear sound cavity 1041 corresponding to the woofer 41 serves as an independent sound leakage cavity and is adjusted through the bass tuning hole 11; the sound generated by the tweeter 42 enters the front sound cavity 103 and is conducted out through the sound outlet 10, and the treble rear sound cavity 1042 corresponding to the tweeter 42 serves as an independent sound leakage cavity and is adjusted through the treble tuning hole 12.

[0048] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A headset, comprising: The housing body, the cover body, the transverse partition, the speaker unit and the circuit board, wherein the housing body and the cover body cooperate with each other to form an earphone cavity, characterized in that: A transverse partition located in the earphone cavity divides the earphone cavity into an acoustic cavity and an external cavity. The circuit board is located in the external cavity and is mounted on the transverse partition. The speaker unit includes: a speaker bracket and a woofer and a tweeter mounted in the speaker bracket. The speaker unit is mounted in a sound cavity, and the speaker unit divides the sound cavity into a front sound cavity and a rear sound cavity. The rear sound cavity is isolated into a bass rear sound cavity connected to the woofer and a treble rear sound cavity connected to the tweeter. The woofer and tweeter are arranged horizontally and installed in the speaker bracket, and the two speakers share a front sound cavity. The top part of the speaker bracket is tightly combined with the bottom surface of the horizontal partition. The speaker bracket divides the rear sound cavity into two independent areas, which serve as a bass rear sound cavity connected to the woofer and a treble rear sound cavity connected to the tweeter. The top of the speaker bracket is provided with a bass communication hole and a treble communication hole on two opposite side surfaces. The bass communication hole is connected to the rear side of the woofer diaphragm, and the treble communication hole is connected to the rear side of the diaphragm of the tweeter. The bass communication hole is connected to the bass rear sound cavity, and the treble communication hole is connected to the treble rear sound cavity. The bass rear sound cavity and the treble rear sound cavity serve as sound leakage cavities of the woofer and tweeter respectively, and are isolated from each other. The shell body is provided with a sound outlet connected to the front sound cavity, a bass tuning hole connected to the bass rear sound cavity, and a treble tuning hole connected to the treble rear sound cavity. The bass tuning hole and the treble tuning hole are respectively provided on opposite front and rear side surfaces of the shell body. Notches are respectively provided on both sides of the open end of the transverse partition to achieve communication between the bass tuning hole, the treble tuning hole and the bass rear sound cavity and the treble rear sound cavity; The sound produced by the woofer enters the front sound cavity and is conducted out through the sound outlet; The sound produced by the tweeter enters the front sound cavity and is conducted out through the sound outlet; The earphone is an ear-hook type earphone, which includes an earphone part and an earhook part. The earphone part is composed of a shell body, a cover body, a transverse partition, a speaker unit and a circuit board; the woofer and the tweeter are installed side by side along the long axis of the earphone.

2. The earphone according to claim 1, wherein: A longitudinal partition is integrally formed in the shell body, which divides the internal cavity of the shell body into a left space and a right space. The left space cooperates with the transverse partition to form the sound cavity; the outer cavity is connected to the right space.

3. The earphone according to claim 2, wherein: A microphone slot is formed in the right side space, and a sound receiving pipe is installed in the microphone slot. One end of the sound receiving pipe is connected to the sound receiving hole on the shell body, and the other end of the sound receiving pipe is connected to the sound receiving microphone on the circuit board.

4. The earphone according to claim 1, wherein: The volume ratio of the bass rear sound cavity to the treble rear sound cavity is 1:2 to 1:

3.

5. The earphone according to claim 1, characterized in that: The inner wall of the shell body is provided with a first positioning portion, a second positioning portion and a third positioning portion in sequence from the opening end downward, wherein the first positioning portion is used to cooperate with the cover body to achieve a fixed connection between the shell body and the cover body; the second positioning portion is used to cooperate with the horizontal partition; and the third positioning portion cooperates with the outer edge of the speaker bracket.

6. The earphone according to claim 1, characterized in that: The bass tuning hole and the treble tuning hole formed on the shell body are located between the second positioning portion and the third positioning portion.

7. The earphone according to claim 5, characterized in that: A snap fit piece is formed on the open end of the transverse partition, and the transverse partition is positioned at the second positioning portion through the snap fit of the snap fit piece and the side wall of the shell body.

8. The earphone according to any one of claims 1 to 7, characterized in that: The sound outlet is located in the middle area between the woofer and the tweeter.

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