Tuning earphone main body and earphone

Abstract

The invention provides a tuning earphone main body and an earphone, and relates to the technical field of listening devices, and the earphone main body comprises a front housing, a rear housing, a sound production unit, a suspension, and a tuning assembly. The rear shell is arranged on one side of the front shell; the sound production unit is arranged between the front shell and the rear shell; the suspension frame is arranged between the front shell and the rear shell, the sound production unit is installed on the suspension frame, the suspension frame divides the internal space of the earphone main body into a tuning cavity and a rear sound cavity, the tuning cavity comprises a front sound cavity and a tuning diaphragm cavity, and the suspension frame is provided with a sound transmission channel for communicating the tuning cavity with the rear sound cavity; the tuning assembly is configured to control the closing degree of the sound transmission channel. The tuning earphone main body is provided with the sound transmission channel between the tuning cavity and the rear sound cavity, the closing degree of the sound transmission channel is controlled through the tuning assembly, then the air flow resistance between the front and rear sound cavities and the external environment is adjusted, and the effective adjustment of the frequency response curve, the tone and the sound insulation effect is realized through a physical means, so that the earphone is expanded to adapt to the listening sound type and the use scene.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present disclosure claims priority to Chinese patent application No. 2024115775571 filed on November 6, 2024, entitled “A New Type of Tuning Headphones”, the entire contents of which are incorporated by reference into the present disclosure. Technical Field

[0003] The present application belongs to the technical field of listening devices, and in particular relates to a tuning earphone body and an earphone. Background Art

[0004] As a common audio playback device, the sound transmission channel formed by the structure and position relationship of the internal shell and sound unit of the earphone determines the characteristics of the output audio. Even the existing professional-grade earphones that pursue ultimate sound quality are often designed with a focus on frequency response to adapt to specific music types or usage scenarios. This results in the earphones having excessive low frequencies, poor high-frequency response / excessive graininess / too sharp, poor sound field performance, and unbalanced mid-high and low frequencies, affecting the sound quality.

[0005] In order to solve the above problems, tuning earphones are now available on the market. However, current tuning earphones are usually tuned electrically. During actual use by users, it is found that electrical tuning often results in a loss of acoustic performance. Summary of the invention

[0006] In order to solve the above technical problems, the present application provides a tuning earphone body, comprising:

[0007] front housing;

[0008] A rear housing, wherein the rear housing 4 is arranged on one side of the front housing;

[0009] A sound unit, which is arranged between the front shell and the rear shell;

[0010] The suspension is arranged between the front shell and the rear shell, the sound unit is installed on the suspension, the suspension divides the internal space of the earphone body into a tuning cavity and a rear sound cavity, and the tuning cavity includes a front sound cavity and a tuning diaphragm cavity, and the suspension is provided with a sound-transmitting channel to connect the tuning cavity and the rear sound cavity;

[0011] The tuning component is configured to control the degree of closure of the sound-permeable channel to adjust the air flow resistance at the corresponding position.

[0012] In one embodiment, the suspension includes a main suspension and a transducer suspension, and the sound transmission channel includes:

[0013] A plurality of first sound-transmitting holes, which are arranged on the main suspension and are coaxially spaced;

[0014] A plurality of second sound-transmitting holes, which are arranged on the transducer suspension and are coaxially spaced;

[0015] Among them, the first sound-transmitting hole and the second sound-transmitting hole can both connect the tuning cavity and the rear sound cavity, and the tuning component is used to adjust the degree of closure of the first sound-transmitting hole and the second sound-transmitting hole to adjust the air flow resistance.

[0016] In one embodiment, the sound transmission channel includes a third sound transmission hole, and the rear housing is provided with a tuning channel located in the rear sound cavity, and the tuning channel corresponds to and communicates with at least one of the third sound transmission holes;

[0017] The tuning component includes a tuning valve, which is arranged in the tuning channel and configured to control the closing degree of the third sound-transmitting hole to adjust the corresponding air flow resistance.

[0018] In one embodiment, the suspension comprises a transducer suspension, and the sound-transmitting channel further comprises:

[0019] A plurality of second sound-transmitting holes, which are arranged on the transducer suspension and are coaxially spaced;

[0020] A third sound-transmitting hole, the third sound-transmitting hole is arranged at the center of the transducer suspension;

[0021] Among them, the second sound-transmitting hole and the third sound-transmitting hole can both connect the tuning cavity and the rear sound cavity, and the tuning component is also used to adjust the degree of closure of the second sound-transmitting hole and the third sound-transmitting hole to adjust the air flow resistance.

[0022] In one embodiment, the tuning assembly includes a second valve plate, which is rotatably mounted on the suspension frame to control the degree of closure of the second sound-transmitting hole;

[0023] Wherein, the second valve plate comprises:

[0024] A baffle plate, wherein a plurality of communication holes are provided on the baffle plate, and the communication holes correspond to the positions of the second sound-transmitting holes, so that the closing degree of the second sound-transmitting holes can be controlled by rotating the baffle plate;

[0025] The adjusting part is connected to the baffle plate and at least partially exposed outside the suspension.

[0026] In one embodiment, the suspension further comprises a main suspension, and a plurality of first sound-transmitting holes are arranged on the main suspension.

[0027] The tuning component also includes a first valve plate, which is rotatably covered on the main suspension frame to control the closing degree of the through hole of the first sound-transmitting hole.

[0028] In one embodiment, the tuning valve further has the following features:

[0029] A hollow portion is provided and can move relative to the rear housing;

[0030] When the tuning valve is rotatably connected to the rear housing, the rear housing is provided with a matching portion that matches the hollow portion, and is used to adjust the overlap between the hollow portion and the matching portion to control the closing degree of the corresponding third sound-transmitting hole;

[0031] When the tuning valve is slidably connected to the rear housing, the hollow portion is located in the tuning channel and adjacent to the third sound-transmitting hole;

[0032] When the overlap between the matching portion and the hollow portion increases, the air flow resistance of the hollow portion becomes smaller.

[0033] In one embodiment, a tuning damping member may be provided on the sound-transmitting channel or the tuning component, and the tuning damping member is used to provide additional air flow resistance and realize a dust-proof function.

[0034] In one embodiment, the sound generating unit includes a transducer assembly and a diaphragm, and the diaphragm is fixedly connected to a side of the suspension away from the rear housing;

[0035] The tuning diaphragm cavity includes:

[0036] A tuning first diaphragm cavity is arranged along the periphery of the suspension;

[0037] The tuning second diaphragm cavity is arranged at the center of the tuning second diaphragm cavity on the suspension;

[0038] The energy conversion component is one or more of a coil, a magnet, a piezoelectric element, and an electrostatic element.

[0039] The present invention also provides an earphone, comprising an earphone beam and a tuning earphone body, wherein the earphone beam is connected to the tuning earphone body.

[0040] The present application provides a technical solution for a tuning earphone body and earphones, wherein the tuning earphone body includes a front shell, a rear shell, a sound unit, a suspension and a tuning assembly; the rear shell is arranged on one side of the front shell; the sound unit is arranged between the front shell and the rear shell; the suspension is arranged between the front shell and the rear shell, the sound unit is mounted on the suspension, the suspension divides the internal space of the earphone body into a tuning cavity and a rear sound cavity, the tuning cavity includes a front sound cavity and a tuning diaphragm cavity, the suspension is provided with a sound-transmitting channel to connect the tuning cavity and the rear sound cavity; the tuning assembly is configured to control the degree of closure of the sound-transmitting channel. The tuning earphone body is provided with a sound-transmitting channel between the tuning cavity and the rear sound cavity, the degree of closure of the sound-transmitting channel is controlled by the tuning assembly, and then the air flow resistance between the front and rear sound cavities and the external environment is adjusted, and the sound field, frequency response range, high, medium and low frequency bands, timbre, and sound insulation effect are effectively adjusted by physical means, thereby expanding the types of sounds and usage scenarios that the earphone body can adapt to listening. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 work.

[0042] Figure 1 A schematic diagram of the cross-sectional structure of the tuning earphone body provided in an embodiment of the present application;

[0043] Figure 2 Schematic diagram of the exploded structure of the tuning earphone body provided in the embodiment of the present application Figure 1 ;

[0044] Figure 3 Schematic diagram of the exploded structure of the tuning earphone body provided in the embodiment of the present application Figure 2 ;

[0045] Figure 4 The three-dimensional structure of the rear housing and the tuning valve provided in the embodiment of the present application Figure 1 ;

[0046] Figure 5 The three-dimensional structure of the rear housing and the tuning valve provided in the embodiment of the present application Figure 2 ;

[0047] Figure 6 Schematic diagram of the exploded structure of the tuning earphone body provided in another embodiment of the present application Figure 1 ;

[0048] Figure 7 Schematic diagram of the exploded structure of the tuning earphone body provided in another embodiment of the present application Figure 1 ;

[0049] Figure 8 A three-dimensional structural diagram of a rear housing and a tuning valve provided in another embodiment of the present application;

[0050] Fig. 9 for Figure 8 A three-dimensional structural diagram of the rear housing and the tuning valve with the tuning valve located at different positions;

[0051] Fig.10 A three-dimensional structural diagram of the tuning earphone body provided in an embodiment of the present application;

[0052] Fig.11 for Fig.10 A three-dimensional structural diagram of the rear housing and the tuning valve;

[0053] Fig.12 This is a three-dimensional structural diagram of a part of the tuning earphone body in the embodiment of the present application;

[0054] Fig.13 for Fig.12 A three-dimensional structural diagram of a portion of the tuning earphone body with the middle valve plate located in another position;

[0055] Fig.14 for Fig.12 A three-dimensional structural diagram of a portion of the tuning earphone body with the middle valve plate located at another position;

[0056] Fig.15 This is a schematic diagram of the exploded structure of a part of the tuning earphone body in the embodiment of the present application;

[0057] Fig.16 It is the frequency response curve of the tuning earphone body when the tuning valve is fully open / half open / fully closed and the valve is half open;

[0058] Fig.17 This is the frequency response curve of the tuning earphone body when the tuning valve is opened 1 / 6 and the valve is half-open;

[0059] Fig.18 This is the frequency response curve of the tuning earphone body when the tuning valve is opened 5 / 6 and the valve is half-open;

[0060] Fig.19 It is the frequency response curve of the tuning earphone body when the transducer valve is fully open / half open / fully closed;

[0061] Fig. 20 The frequency response curve of the tuning earphone body when the main suspension valve is fully open / half open / fully closed;

[0062] Fig.21 The frequency response curve of the tuning earphone body controlled by the linkage of the tuning valve, the transducer valve plate and the main suspension valve plate.

[0063] Description of main component symbols:

[0064] 1. Front shell; 11. Front sound cavity; 12. Through-hole area; 2. Sound-emitting unit; 21. Transducer assembly; 22. Diaphragm; 23. Tuning diaphragm cavity; 231. Tuning first diaphragm cavity; 232. Tuning second diaphragm cavity; 3. Suspension; 31. Main suspension; 32. Transducer suspension; 4. Rear shell; 42. Rear sound cavity; 43. Matching part; 5. Sound-transmitting channel; 51. First sound-transmitting hole; 52. Second sound-transmitting hole; 53. Third sound-transmitting hole; 6. Tuning cavity; 7. Vibration sound-conducting isthmus; 8. Tuning assembly; 81. First valve plate; 82. Second valve plate; 821. Baffle; 8211. Connecting hole; 822. Adjustment part; 83. Tuning valve; 831. Hollow part; 833. Screw part; 9. Tuning damping member; 10. Let hole. DETAILED DESCRIPTION

[0065] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixedly connected" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] Definition of noun:

[0069] Headphone SPL chart: It is a graph showing the relationship between the sound pressure level (SPL) of headphones and frequency. SPL is a unit of measurement of sound intensity, expressed in decibels (dB), which is used to describe the volume of sound that headphones can produce under specific conditions.

[0070] Frequency Response (FR): It reflects the conversion efficiency of electroacoustic devices in converting electrical energy into sound vibrations. It is received by the built-in microphone in the artificial ear or head and torso simulator and presented in the form of dB / SPL in the graph. It is usually tested using a microphone with a frequency response range of 20-20KHz.

[0071] Harman Over-Ear 2018 (Harman OE 2018): A headphone frequency response curve developed by Harman International Industries to optimize the listening experience of headphones. This curve is based on a large amount of listening test data and subjective listening surveys, reflecting the preferences of most users for ideal sound and is suitable for most music types and users. The Harman OE 2018 frequency response curve is widely used in the design and tuning of headphones. Many headphone manufacturers use this curve as a reference to design headphone products that meet the public's listening preferences. The goal is to achieve natural and balanced sound quality so that users are not easily fatigued when listening for a long time.

[0072] Harman Over-Ear Linear 2018 (Harman OE Linear 2018): is another frequency response curve proposed by the Harman research team based on Harman OE 2018. Unlike Harman OE 2018, which aims to meet subjective listening preferences, Harman OE Linear 2018 pays more attention to linear response, with the goal of minimizing audio distortion and providing accurate and realistic sound reproduction. This curve best fits the head-related transfer function (HRTF).

[0073] Head-Related Transfer Function (HRTF): Head-Related Transfer Function (HRTF) is a function that describes the transmission path of sound from the sound source to the listener's ear canal. It comprehensively considers the influence of the auricle, head, shoulders and external auditory canal, and reflects the spatial positioning and directional characteristics. In headphones, the relationship between the head-related transfer function (HRTF) and the frequency response curve (FR) can be understood as follows: the closer the headphone's frequency response curve FR is to the head-related transfer function (HRTF), the more accurate and restored the headphone sound is. Target Response is the frequency response curve of the headphone under ideal conditions, or the international standard headphone curve.

[0074] The following is combined with Figure 1-Figure 21 The technical solution of this application is further elaborated and illustrated with specific embodiments.

[0075] Specifically, if Figure 1 , Figure 2 and Figure 3 As shown, the tuning earphone body provided by the present application includes a front shell 1, a sound unit 2, a suspension 3 and a rear shell 4. The front shell 1, the suspension 3 and the rear shell 4 are stacked in the front-to-back direction, that is, the suspension 3 is located between the front shell 1 and the rear shell 4. It should be noted that the connection relationship between the suspension 3 and the front shell 1 and the rear shell 4 is not limited, for example, it can be connected by snap connection, one-piece molding connection, bolt connection, 3D printing molding, etc. In this embodiment, the sound unit 2 is installed on the suspension 3. The front can be understood as the side close to the wearer, and the rear can be understood as the side away from the wearer.

[0076] The front shell 1 and the rear shell 4 are assembled to form an accommodating space inside the earphone body. The front shell 1 and the rear shell 4 can be designed in a split type. The suspension 3 divides the internal space of the earphone body into a tuning cavity and a rear sound cavity 42. The suspension 3 is provided with a sound-transmitting channel 5 to connect the tuning cavity and the rear sound cavity 42. The tuning earphone body also includes a tuning component 8, and the tuning component 8 is configured to control the degree of closure of the sound-transmitting channel 5 to adjust the air flow resistance at the corresponding position.

[0077] The suspension 3 is provided to isolate the front and rear sound waves emitted by the sound unit 2, thereby reducing the situation of complete "sound short circuit". Among them, "sound short circuit" can be understood as the situation that the front and rear sound waves emitted by the sound unit 2 are not effectively isolated, and the front and rear sound waves will cancel each other out, resulting in a weakened sound effect. The characteristics of "sound short circuit" can be used to adjust the frequency and frequency response range of the sound.

[0078] Therefore, by setting the tuning component 8 and using physical means to control the degree of closure of the sound-transmitting channel 5, the air flow resistance between the tuning cavity, the rear sound cavity 42 and the outside world can be adjusted, that is, the degree of "sound short circuit" can be controlled, and then the frequency band of the sound reception can be adjusted to achieve effective adjustment of the sound field, frequency response range, high, medium and low frequency bands, timbre, and sound insulation effect, thereby expanding the types of music and usage scenarios that the earphone body can adapt to listening. This product does not need to achieve tuning by electrical means, which reduces the loss of acoustic performance, that is, reduces the distortion in the sound generation process of the earphone.

[0079] In one embodiment of the present application, the rear shell 4 is a sound-invisible structure. The sound processing of the rear shell is infinitely close to that of open headphones, and has excellent sound field and acoustic performance. The sound waves emitted by the sound unit 2 will hardly reflect when passing through the rear shell. On the one hand, it avoids the sound clutter caused by sound reflection and resonance, and on the other hand, it shows the adjustment effect of the adjustment component 8 on the sound. When adjusting the tuning component 8, it is equivalent to directly adjusting the flow resistance between the sound cavity and the external environment. By controlling the opening of the tuning valve, the characteristics of the sound can be sensitively and effectively changed by adjusting the flow resistance, and the sound field, frequency response range, high, medium and low frequency bands, timbre, and sound insulation effect of the headphones can be adjusted in combination with the control of the opening of the suspension sound hole. Optionally, refer to Figure 8-Figure 11 The rear shell 4 is provided with sound-invisible holes arranged in an array. The sound-invisible holes are horn-shaped through holes that gradually expand or converge from front to back. The rear shell adopts this sound-invisible structure, which is conducive to the lossless passage of sound through the rear shell, while retaining a certain degree of flow resistance to the air, effectively avoiding bass sound short-circuiting, thereby obtaining excellent bass performance.

[0080] In one embodiment of the present application, reference Figures 2 to 5 The rear shell body 4 extends into the earphone body and is provided with an annular wall to form a tuning channel 6. The annular wall is located at the center of the earphone body, and in the rear sound cavity 42, the tuning channel 6 corresponds to and is connected with at least one sound-transmitting channel 5.

[0081] The tuning assembly 8 includes a tuning valve 83, which is disposed inside the tuning channel 6. The tuning valve 83 may be completely located inside the tuning channel 6, or the top end of the tuning valve 83 may extend to the outside of the rear housing 4, so that the user can control the tuning valve 83. The tuning valve 83 is configured to control the degree of closure of the sound-transmitting channel 5 corresponding to the tuning channel 6 to adjust the corresponding air flow resistance.

[0082] In one embodiment of the present application, the tuning valve 83 is provided with a hollow portion 831, and the tuning valve 83 can move relative to the rear housing 4 to adjust the degree of closure of the corresponding sound-transmitting channel 5. Optionally, the hollow portion 831 is a groove structure, and sound waves can pass through the hollow portion 831. Optionally, a screwing portion 833 is provided at one end of the tuning valve 83 away from the sound unit 2, and the rotation position of the tuning valve 83 is controlled by rotating the screwing portion 833.

[0083] See also Figures 3 to 9 In one embodiment of the present application, the rear housing 4 is provided with a matching portion 43 matching with the hollow portion 831, and the tuning valve 83 is rotatably connected to the rear housing 4 to adjust the overlap between the hollow portion 831 and the matching portion 43 to control the closure degree of the corresponding sound transmission channel 5. Optionally, the matching portion 43 is a groove structure, and when the matching portion 43 overlaps with the hollow portion 831, the sound wave can pass through the hollow portion 831 and the matching portion 43.

[0084] By turning the tuning valve 83, the relative position of the hollow portion 831 and the matching portion 43 can be controlled, and the overlap degree of the hollow portion 831 and the matching portion 43 can be controlled. When the overlap degree of the hollow portion 831 and the matching portion 43 increases, the closing degree of the sound-transmitting channel 5 decreases accordingly, in other words, the air flow resistance decreases. Conversely, when the overlap degree of the hollow portion 831 and the matching portion 43 decreases, the closing degree of the sound-transmitting channel 5 increases accordingly, in other words, the air flow resistance increases.

[0085] The tuning valve 83 can be rotated to infinitely adjust the closing degree of the hollow portion 831, from fully open to fully closed, thereby changing the air flow resistance inside and outside the tuning valve 83 and adjusting the sound characteristics of the headphone main audio.

[0086] See also Figures 3 to 5 In one embodiment of the present application, the hollow portion 831 is located on a side of the tuning valve 83 close to the sound unit 2; the matching portion 43 is disposed on a side of the rear housing 4 close to the sound unit 2, so that the tuning channel 6 is connected to the rear sound cavity 42;

[0087] When the overlap between the matching portion 43 and the hollow portion 831 increases, the air flow resistance of the hollow portion 831 decreases. In this embodiment, the screwing portion 833 is preferably a top-closed screwing portion, and optionally, the screwing portion 833 is a groove suitable for screwing with a tool, a mechanical or electric control knob or button.

[0088] See also Figures 6 to 9 In another embodiment of the present application, the hollow portion 831 penetrates the tuning valve 83 along the front-to-back direction, and the matching portion 43 penetrates the rear shell 4 along the front-to-back direction.

[0089] When the overlap between the matching portion 43 and the hollow portion 831 increases, the air flow resistance of the hollow portion 831 decreases.

[0090] See also Fig.10 and Fig.11 In another embodiment of the present application, the movement mode between the tuning valve 83 and the rear shell 4 is as follows: the tuning valve 83 is slidably connected to the rear shell 4, and the hollow portion 831 is located in the tuning channel 6 and adjacent to the corresponding sound-transmitting channel 5.

[0091] When the position of the hollow portion 831 is directly opposite to the position of the corresponding sound-transmitting channel 5, the sound wave can pass through the hollow portion 831. By sliding the tuning valve 83, the overlap degree of the hollow portion 831 and the corresponding sound-transmitting channel 5 can be controlled.

[0092] In one embodiment of the present application, reference Figure 2 and Figure 3 The sound unit 2 includes a transducer assembly 21 and a diaphragm 22, and the diaphragm 22 is fixedly connected to the side of the suspension 3 facing the front shell 1. Specifically, the tuning diaphragm cavity 23 includes a tuning first diaphragm cavity 231 and a tuning second diaphragm cavity 232, wherein the position of the tuning first diaphragm cavity 231 corresponds to the periphery of the suspension 3, and the position of the tuning second diaphragm cavity 232 corresponds to the center of the suspension 3.

[0093] The first tuning diaphragm cavity 231 and the second tuning diaphragm cavity 232 are arc-shaped and form a sound-generating space connected to the sound-transmitting channel 5 of the suspension 3. The pressure wave generated by the vibration of the diaphragm 22 matches the frequency of the original sound signal and is transmitted to the human ear for analysis. The sound-generating space not only provides a vibration space for the diaphragm 22, but also adapts to the sound-transmitting channel 5 to form a sound channel connecting the tuning cavity and the rear sound cavity 42. Moreover, through the tuning second diaphragm cavity 232 and the tuning valve 83 corresponding to the center of the suspension 3, a tuning space with adjustable opening between the rear sound cavity 42 and the external environment is formed.

[0094] In one embodiment of the present application, the sound unit 2 adopts a combination of a moving iron and a moving coil sounding mode, and the transducer assembly 21 includes a coil and a magnet. Optionally, the transducer assembly 21 is one or more of a coil, a magnet, a piezoelectric element, and an electrostatic element to match the performance of different headphone bodies. Another embodiment may also select a planar diaphragm 22 as a special type of headphone body driving unit. The headphone body with a planar diaphragm 22 can generally provide low distortion, high resolution, and wide frequency response sound feedback, which is suitable for high-fidelity audio applications.

[0095] Specifically, the planar diaphragm 22 is usually made of a lightweight but rigid material such as polyimide film or aluminum. The diaphragm 22 is covered with a conductive material, and magnets are arranged on both sides or around the diaphragm 22. The conductive material is responsible for converting electrical signals into mechanical vibrations of the diaphragm 22, and the magnets are used to generate a stable magnetic field.

[0096] In one embodiment of the present application, reference Figures 1 to 3 A through hole area 12 is provided at the center of the front shell body 1, and a connected vibration guide isthmus 7 is formed between the through hole area 12 and the diaphragm 22, so as to reserve a certain vibration space of the diaphragm 22 and the transducer assembly 21 in the front shell body 1, so that the split vibration phenomenon of the transducer assembly 21 is relatively minimized in the vibration of different frequencies, thereby improving the smoothness of the overall sound frequency range curve and reducing the overall harmonic resonance distortion.

[0097] In one embodiment of the present application, reference Figure 2 and Figure 3 The suspension 3 includes a main suspension 31 and a transducer suspension 32. The sound channel 5 includes a plurality of first sound holes 51, a plurality of second sound holes 52 and a plurality of third sound holes 53. The plurality of first sound holes 51 are arranged on the main suspension 31 and are arranged coaxially and spaced apart. The plurality of second sound holes 52 are arranged on the transducer suspension 32 and are arranged coaxially and spaced apart. The third sound hole 53 is arranged in the center of the suspension 3 corresponding to the sound unit 2, that is, the main suspension 31. The first sound hole 51, the second sound hole 52 and the third sound hole 53 can connect the tuning cavity and the rear sound cavity 42. The tuning component 8 is used to adjust the degree of closure of the first sound hole 51, the second sound hole 52 and the third sound hole 53.

[0098] It should be understood that the first sound hole 51, the second sound hole 52 and the third sound hole 53 can be arranged in a circular, symmetrical or irregular arrangement to form a plurality of through holes, for example, 8, 9, etc. In some other embodiments, the through holes of the first sound hole 51, the second sound hole 52 and the third sound hole 53 can be arranged in a square, circular, elliptical or other shape, and the present application does not impose any specific limitation.

[0099] By providing the first sound transmission hole 51 , the second sound transmission hole 52 and the third sound transmission hole 53 , a plurality of sound paths are formed in the front and rear sound cavities 42 .

[0100] Specifically, the position of the third sound-transmitting hole 53 is opposite to the position of the tuning channel 6 , and the tuning valve 83 is used to adjust the closing degree of the third sound-transmitting hole 53 .

[0101] Optionally, refer to Figure 2 and Figure 3 The main suspension 31 and the transducer suspension 32 are configured as separate concentric rings, which can also be referred to Figure 6 and Figure 7 It is configured to be integrally formed, and the size, spacing and position of the sound channel 5 can be set according to the tuning needs of the earphone body.

[0102] In one embodiment of the present application, reference Figures 12 to 15 The tuning assembly 8 includes a first valve plate 81 and a second valve plate 82, wherein the first valve plate 81 is used to correspond to the first sound-transmitting hole 51, and the second valve plate 82 is used to correspond to the second sound-transmitting hole 52, and the first valve plate 81 and the second valve plate 82 have the same structure.

[0103] Specifically, the first valve plate 82 is rotatably mounted on the main suspension 31 to control the closing degree of the through hole of the first sound-transmitting hole 51. The second valve plate 82 is rotatably mounted on the transducer suspension 32 to control the closing degree of the second sound-transmitting hole 52. The first valve plate 81, the second valve plate 82 and the tuning valve 83 are used to coordinately adjust the sound propagation path between the tuning cavity and the rear sound cavity 42, thereby adjusting the acoustic characteristics of the sound.

[0104] It should be noted that the tuning valve 83 and the first valve plate 81 and the second valve plate 82 can be adjusted separately, that is, the tuning component 8 can include only the tuning valve 83, or include the first valve plate 81 and the second valve plate 82, or include the tuning valve 83 and one of the first valve plate 81 and the second valve plate 82, or include the tuning valve 83 and the first valve plate 81 and the second valve plate 82.

[0105] That is, the number of valve plates is not limited to two, and may be only one. When the number of valve plates is one, it can be used only to adjust the closing degree of the first sound-transmitting hole 51 or the second sound-transmitting hole 52, or the size of the valve plate can be increased to adjust the closing degree of the first sound-transmitting hole 51 and the second sound-transmitting hole 52 at the same time (e.g. Figure 6 and Figure 7 shown).

[0106] In other words, by adjusting only the tuning valve 83, the first valve plate 81 corresponding to the first sound hole 51, or the second valve plate 82 corresponding to the second sound hole 52, or two of them, or a combination of all three, the frequency band of the received sound can be adjusted to achieve effective adjustment of the sound field, frequency response range, high, medium and low frequency bands, timbre, and sound insulation effect, thereby expanding the types of music and usage scenarios that the earphone body can adapt to.

[0107] In one embodiment of the present application, reference Fig.15 The second valve plate 82 includes a baffle plate 821 and an adjusting portion 822. The baffle plate 821 is provided with a plurality of communication holes 8211. The plurality of communication holes 8211 are arranged around the axis of the baffle plate 821. The communication holes 8211 correspond to the positions of the second sound-transmitting holes 52, so that the baffle plate 821 is rotated to control the closing degree of the second sound-transmitting holes 52. The adjusting portion 822 is connected to the baffle plate 821 and at least partially exposed outside the suspension 3.

[0108] Optionally, the adjustment part 822 is an adjustment rod, which extends out of the earphone body and moves within the range of the hole 10 set by the main suspension 31. The user can control the relative movement of the baffle 821 inside the earphone body relative to the first sound hole 51 and the second sound hole 52 by moving the adjustment rod on the outside of the earphone body, and complete the stepless adjustment of the closing degree of the first sound hole 51 and the second sound hole 52 by the baffle 821.

[0109] In other embodiments, the earphone body can also control the rotation of the first valve plate 81 or the second valve plate 82 by a knob or button arranged outside the rear shell 4. This process can be achieved mechanically or electrically, and the number of valve plates, adjustment rods, buttons or buttons can be selected as needed.

[0110] In one embodiment of the present application, reference Figure 2 , Figure 3 The first sound-transmitting hole 51, the second sound-transmitting hole 52 and the third sound-transmitting hole 53 arranged in the center of the suspension 3 are all provided with a tuning damping member 9, which is used to prevent dust from the earphone body and the inside of the transducer assembly 21, and at the same time provides a certain air flow resistance for tuning the earphone body. Optionally, the tuning damping member 9 is tuning cotton or tuning paper.

[0111] Multiple sound-transmitting paths are set between the tuning cavity and the rear sound cavity 42 and a corresponding tuning component 8 is set, which is used to control the air flow resistance between the tuning cavity, the rear sound cavity 42 and the external environment. When the tuning valve 83 is rotated, it is equivalent to directly adjusting the air flow resistance between the tuning cavity, the rear sound cavity 42 and the external environment. By controlling the tuning valve 83, the characteristics of the sound can be changed sensitively and effectively by adjusting the air flow resistance, and the sound field, frequency response range, high, medium and low frequency bands, timbre and sound insulation effect of the headphone main body can be adjusted in combination with the closing degree of the sound-transmitting channel 5.

[0112] To further illustrate the sound performance of the tuning earphone body provided by the present application, the inventor conducted the following experiments:

[0113] (1) The tuning valve 83 is fully open / half open / fully closed, and the first valve plate 81 and the second valve plate 82 are half open (i.e., the first sound-transmitting hole 51 and the second sound-transmitting hole 52 are half closed).

[0114] in, Fig.16 The middle curve A1 represents the experimental data curve when the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is fully opened;

[0115] The A2 curve represents the Harman Over-Ear curve;

[0116] Curve A3 represents the experimental data curve when the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is half-opened;

[0117] Curve A4 represents an experimental data curve in which the first sound transmission hole 51 is half-open, the second sound transmission hole 52 is half-open, and the third sound transmission hole 53 is fully closed.

[0118] The closing degree of the third sound-transmitting hole 53 is adjusted by the tuning valve 83. Fig.16 It can be seen that the degree of closure of the third sound-permeable hole 53 has a greater impact on the sound intensity of the low-frequency band, and the tuning valve 83 can effectively adjust the bass.

[0119] When the tuning valve 83 is in the fully open state (the tuning valve 83 is at the 0 degree position, such as Fig.16 The sound channel of the third sound-transmitting hole 53 is at its maximum opening, and is in the fully open position at this time. The sound pressure level at 30 Hz is 106 dB.

[0120] When the tuning valve 83 is in a half-open state (the tuning valve 83 is at a 45 degree position, Fig.16 The third sound-transmitting hole 53 is in a half-open position, and the sound pressure level at 30 Hz is 102 dB;

[0121] When the tuning valve 83 is in the fully closed state (the tuning valve 83 is at the 90 degree position, Fig.16In the figure, the third sound hole 53 is in the closed position, the sound pressure level at 30 Hz is 97 dB, and when the tuning valve 83 is in the fully open position and the fully closed position, the sound pressure level of the earphone body at the bass position has a sound difference of 9 dB, which is enough to produce a 3-fold volume difference in hearing. That is to say, the present application can effectively adjust the bass hearing of the earphone body by steplessly adjusting the tuning valve 83, thereby adapting to music types with different bass requirements.

[0122] (2) The tuning valve 83 is opened 1 / 6, and the first valve plate 81 and the second valve plate 82 are half open (i.e., the first sound-transmitting hole 51 and the second sound-transmitting hole 52 are half closed).

[0123] in, Fig.17 The curve B2 in the middle represents an experimental data curve in which the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is 25% open.

[0124] Fig.17 It can be seen that when the tuning valve 83 is opened 1 / 6 (the tuning valve 83 is at a position of about 25 degrees), the frequency response curve of the headphone body (i.e. Fig.17 The B2 curve in the middle is very consistent with Harman Over-Ear 2018 (Harman OE 2018), that is, Fig.17 In the middle B1 curve, the main audio of the earphones is more in line with the hearing needs of most users and their preference for ideal sound. It has a natural and balanced sound quality and is suitable for most music types.

[0125] (3) The tuning valve 83 is opened 5 / 6, and the first valve plate 81 and the second valve plate 82 are half open (i.e., the first sound-transmitting hole 51 and the second sound-transmitting hole 52 are in a half-closed state)

[0126] in, Fig.18 The C1 curve in the middle represents an experimental data curve in which the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is 75% open.

[0127] Fig.18 It can be seen that when the tuning valve 83 is opened 5 / 6 (the tuning valve 83 is at a position of about 75 degrees), the frequency response curve of the headphone body ( Fig.18 The C1 curve in the middle is very consistent with Harman OE Linear 2018, that is Fig.18 In the middle C2 curve, the main audio of the earphone can reduce audio distortion as much as possible, provide accurate and true sound restoration, and capture more sound details in the music.

[0128] (4) The second valve plate 82 is fully open / half open / fully closed

[0129] in, Fig.19The middle D1 curve represents the experimental data curve when the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is fully opened;

[0130] Curve D2 represents an experimental data curve in which the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is fully opened, and the third sound transmission hole 53 is fully opened;

[0131] Curve D3 represents an experimental data curve in which the first sound transmission hole 51 is half-open, the second sound transmission hole 52 is completely closed, and the third sound transmission hole 53 is completely open.

[0132] Fig.19 It can be seen that when the second valve plate 82 is in the fully open state, the second sound-transmitting hole 52 is closed to the minimum, that is, the second sound-transmitting hole 52 is in the fully open state. At this time, the frequency response curve of the earphone body (i.e. Fig.19 The trend of the middle D1 curve is flat;

[0133] When the second valve plate 82 is in a half-open state, the second sound-transmitting hole 52 is in a standard half-open position, that is, the second sound-transmitting hole 52 is in a half-open state. At this time, the frequency response curve of the earphone body (i.e. Fig.19 The low frequency and high frequency of the middle D2 curve) are raised to a certain extent compared with the fully open state of the second valve plate 82;

[0134] When the second valve plate 82 is in a fully closed state, the second sound-transmitting hole 52 is in a closed state, that is, the second sound-transmitting hole 52 is in a fully closed state, at this time, the frequency response curve of the earphone body (i.e. Fig.19 The middle D3 curve is obviously closer to U-shaped deformation, and the low and high frequencies are significantly enhanced.

[0135] That is to say, the present application controls the closing degree of the second sound-transmitting hole 52 by infinitely adjusting the second valve plate 82, thereby achieving effective adjustment of the high-frequency and low-frequency outputs of the headphone body at the same time, thereby optimizing the timbre, sound field, sound details, etc. of the audio by balancing the high and low frequencies. The frequency point or base point of the change in the frequency response curve of the headphone body caused by the closing degree of the second sound-transmitting hole 52 is at 1500 Hz, which is mainly reflected in the change of the low frequency below 1000 Hz and the high frequency sound above 2000 Hz.

[0136] (5) The first valve plate 81 is fully open / half open / fully closed

[0137] in, Fig. 20 The curve E1 in the middle represents the experimental data curve when the first sound transmission hole 51 is fully opened, the second sound transmission hole 52 is half opened, and the third sound transmission hole 53 is fully opened;

[0138] Curve E2 represents an experimental data curve in which the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is fully opened;

[0139] Curve E3 represents an experimental data curve in which the first sound transmission hole 51 is completely closed, the second sound transmission hole 52 is half opened, and the third sound transmission hole 53 is completely opened;

[0140] Fig. 20 It can be seen that when the first valve plate 81 is in the fully open position, the closing degree of the second sound-transmitting hole 51 is the smallest, that is, Fig.19 The middle E1 curve, that is, the first sound-transmitting hole 51 is in a fully open state, wherein, Fig.19 The curve E2 in the middle indicates that the first valve plate 81 is in a half-open position. Fig.19 The curve E3 in the middle indicates that the first valve plate 81 is in the fully closed position.

[0141] Depend on Fig. 20 It can be seen that compared with the first valve plate 81 being in the half-open and closed positions, the sound pressure level from the midrange part to the bass part of the headphone main frequency response curve will be reduced as a whole, and the smaller the degree of closure of the first sound-permeable hole 51, the lower the sound pressure level.

[0142] That is to say, the present application controls the degree of closure of the first sound-permeable hole 51 by steplessly adjusting the first valve plate 81, thereby achieving effective adjustment of the overall sound pressure level of the low-frequency output of the earphone body.

[0143] It can be further seen from the figure that the adjustment of the mid-low frequency by the first valve plate 81 is basically equivalent adjustment, and the overall sound pressure level of the mid-low frequency can be raised or lowered by adjusting the first valve plate 81 as a whole and in a balanced manner, thereby optimizing the timbre, sound field, sound details, etc. of the audio. The frequency point or base point of the change in the frequency response curve of the headphone body caused by the degree of closure of the first sound-transmitting hole 51 is around 1200hz, which is mainly reflected in the change of low-frequency sounds below 1200hz.

[0144] (6) Linkage control

[0145] The above lists only a limited number of linkage control combinations. Fig.21 It can be seen that through the linkage control of the tuning valve 83, the first valve plate 81 and the second valve plate 82, the intermediate frequency, low frequency, high frequency intensity of the headphone main audio and the frequency point or base point of the sound change can be adjusted in multiple ways, thereby changing the timbre, sound field, and sound details of the audio, and expanding its suitability for different user groups and music types.

[0146] in, Fig.21 The F1 curve in the middle represents the experimental data curve when the first sound transmission hole 51 is fully opened, the second sound transmission hole 52 is fully closed, and the third sound transmission hole 53 is fully opened;

[0147] Curve F2 represents an experimental data curve in which the first sound transmission hole 51 is half-opened, the second sound transmission hole 52 is half-opened, and the third sound transmission hole 53 is fully opened;

[0148] Curve F3 represents an experimental data curve in which the first sound transmission hole 51 is completely closed, the second sound transmission hole 52 is completely opened, and the third sound transmission hole 53 is completely opened.

[0149] An embodiment of the present application also discloses an earphone, which includes an earphone beam and a tuning earphone body in any of the above embodiments. It should be understood that there are two tuning earphone bodies symmetrically arranged, and the two tuning earphone bodies are respectively installed on the two ends of the earphone beam.

[0150] The above is a detailed introduction to a tuning earphone body provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. At the same time, for those skilled in the art, according to the ideas and methods of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A tuning earphone body, characterized in that: include: A front housing (1); A rear housing (4), the rear housing (4) being arranged on one side of the front housing (1); A sound-generating unit (2), the sound-generating unit (2) being arranged between the front housing (1) and the rear housing (4); A suspension (3), wherein the suspension (3) is arranged between the front housing (1) and the rear housing (4), the sound generating unit (2) is mounted on the suspension (3), the suspension (3) divides the internal space of the earphone body into a tuning cavity and a rear sound cavity (42), and the tuning cavity comprises a front sound cavity (11) and a tuning diaphragm cavity (23), and the suspension (3) is provided with a sound-transmitting channel (5) to connect the tuning cavity and the rear sound cavity (42); A tuning component (8), wherein the tuning component (8) is configured to control the degree of closure of the sound-permeable channel (5) to adjust the air flow resistance at a corresponding position.

2. The tuning earphone body according to claim 1, characterized in that: The suspension (3) comprises a main suspension (31) and a transducer suspension (32), The sound-transmitting channel (5) comprises: A plurality of first sound-transmitting holes (51), wherein the plurality of first sound-transmitting holes (51) are arranged on the main suspension frame (31) and are coaxially spaced and arranged; A plurality of second sound-transmitting holes (52), wherein the plurality of second sound-transmitting holes (52) are arranged on the transducer suspension (32) and are coaxially spaced and arranged; The first sound-transmitting hole (51) and the second sound-transmitting hole (52) are both capable of connecting the tuning cavity and the rear sound cavity (42), and the tuning component (8) is used to adjust the degree of closure of the first sound-transmitting hole (51) and the second sound-transmitting hole (52) to adjust the air flow resistance.

3. The tuning earphone body according to claim 1, characterized in that: The sound transmission channel (5) includes a third sound transmission hole (53), the rear housing (4) is provided with a tuning channel (6) located in the rear sound cavity (42), and the tuning channel (6) corresponds to and communicates with at least one of the third sound transmission holes (53); The tuning component (8) comprises a tuning valve (83), which is arranged in the tuning channel (6) and configured to control the degree of closure of the third sound-transmitting hole (53) to adjust the corresponding air flow resistance.

4. The tuning earphone body according to claim 1, characterized in that: The suspension (3) includes a transducer suspension (32), and the sound-transmitting channel (5) further includes: A plurality of second sound-transmitting holes (52), wherein the plurality of second sound-transmitting holes (52) are arranged on the transducer suspension (32) and are coaxially spaced and arranged; A third sound-transmitting hole (53), wherein the third sound-transmitting hole (53) is arranged at the center of the transducer suspension (32); The second sound-transmitting hole (52) and the third sound-transmitting hole (53) are both capable of connecting the tuning cavity and the rear sound cavity (42), and the tuning component (8) is also used to adjust the degree of closure of the second sound-transmitting hole (52) and the third sound-transmitting hole (53) to adjust the air flow resistance.

5. The tuning earphone body according to claim 4, characterized in that: The tuning component (8) comprises a second valve plate (82), wherein the second valve plate (82) is rotatably mounted on the suspension (3) to control the degree of closure of the second sound-transmitting hole (52); Wherein, the second valve plate (82) comprises: a baffle (821), wherein the baffle (821) is provided with a plurality of communication holes (8211), wherein the communication holes (8211) correspond to the positions of the second sound-transmitting holes (52), so that the baffle (821) can be rotated to control the degree of closure of the second sound-transmitting holes (52); An adjusting portion (822), the adjusting portion (822) being connected to the baffle (821) and at least partially exposed outside the suspension (3).

6. The tuning earphone body according to claim 4, characterized in that: The suspension (3) further comprises a main suspension (31), and a plurality of first sound-transmitting holes (51) are arranged on the main suspension (31). The tuning component (8) further comprises a first valve plate (81), wherein the first valve plate (81) is rotatably mounted on the main suspension (31) to control the degree of closure of the through hole of the first sound-transmitting hole (51).

7. The tuning earphone body according to claim 2, characterized in that: The tuning valve (83) further has the following features: A hollow portion (831) is provided and can move relative to the rear housing (4); When the tuning valve (83) is rotatably connected to the rear housing (4), the rear housing (4) is provided with a matching portion (43) matching with the hollow portion (831), which is used to adjust the overlap degree between the hollow portion (831) and the matching portion (43) so as to control the closing degree of the corresponding third sound-transmitting hole (53); When the tuning valve (83) is slidably connected to the rear housing (4), the hollow portion (831) is located in the tuning channel (6) and is adjacent to the third sound-transmitting hole (53); When the overlap between the matching portion (43) and the hollow portion (831) increases, the air flow resistance of the hollow portion (831) decreases.

8. The tuning earphone body according to claim 1, characterized in that: A tuning damping member (9) may be provided on the sound-transmitting channel (5) or the tuning component (8), and the tuning damping member (9) is used to provide additional air flow resistance and realize a dust-proof function.

9. The tuning earphone body according to claim 1, characterized in that: The sound-generating unit (2) comprises a transducer assembly (21) and a diaphragm (22), wherein the diaphragm (22) is fixedly connected to a side of the suspension (3) facing away from the rear housing (4); The tuning diaphragm cavity (23) comprises: A tuning first diaphragm cavity (231) is arranged along the periphery of the suspension (3); A tuning second diaphragm cavity (232), wherein the center of the tuning second diaphragm cavity (232) is arranged on the suspension (3); Furthermore, the energy conversion component (21) is one or more of a coil, a magnet, a piezoelectric element, and an electrostatic element.

10. A headset, characterized in that: It comprises an earphone beam and a tuning earphone body as described in any one of claims 1 to 9, wherein the earphone beam is connected to the tuning earphone body.

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