Double-microphone earphone

Abstract

The utility model relates to the technical field of earphones, in particular to an earphone. An earphone comprises a main control unit, a clamping unit, a receiver, a transmitting unit and a connecting arm, the transmitting unit comprises two microphones, and the microphones have directional pickup, so that when a connecting line between the mouth of a user and a main microphone is a first connecting line and a connecting line between the main microphone and an auxiliary microphone is a second connecting line, the connecting line between the main microphone and the auxiliary microphone is a second connecting line; when the included angle between the first connecting line and the second connecting line is + / -60 degrees, the sound of a user can be clearly recognized, other directions are cleared to different degrees, and therefore the optimal pickup effect can be achieved through the arrangement of the double microphones. One end of the connecting arm is detachably connected with the main control unit, so that production of the earphone is facilitated, production is more optimized, maintenance is more convenient, meanwhile, one end of the connecting arm and the main control unit are coaxially and rotationally arranged, a certain degree of freedom is still kept in the axial direction, the receiver connected with the connecting arm can be conveniently adjusted to be tightly attached to the cheek, and the wearing experience of the earphone is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to a dual-microphone earphone. Background Art

[0002] The microphone in the communication system of existing ear-hook headphones has a low voice volume, resulting in poor communication quality. Furthermore, for those wearing glasses, the temples of the glasses often interfere with the upper ear helix ear hook, affecting the wearing experience. Furthermore, excessive weight placed on the upper ear helix can cause pain in the surrounding muscles over time. Furthermore, existing earphones are all integrally injection-molded, resulting in complex production processes and significant maintenance challenges. Utility Model Content

[0003] (1) Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a dual-microphone headset, which solves the technical problems of poor voice transmission effect, poor wearing effect, complex production process and difficult maintenance.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0007] An embodiment of the present invention provides a dual-microphone headset, including an earpiece, a transmitter unit, a main control unit, a clamping unit and a connecting arm; the main control unit is electrically connected to the earpiece and the transmitter unit respectively; the clamping unit is arranged on the main control unit to provide a clamping force for clamping on the side and / or lower part of the ear; one end of the connecting arm is detachably connected to the main control unit and is coaxially rotatable with the main control unit, and the other end is connected to the earpiece, and when worn, the connecting arm extends along the lower edge of the helix and bends upward to make the earpiece rest against the face or ear; the transmitter unit includes a main microphone and a secondary microphone, the main microphone and the secondary microphone are respectively located on any one or two of the earpiece, the main control unit, the clamping unit, or the connecting arm, and the main microphone is located on the side close to the user's mouth relative to the secondary microphone; the line connecting the user's mouth and the main microphone is a first line, and the line connecting the main microphone and the secondary microphone is a second line, and the angle between the first line and the second line is e, where -60°≤e≤60°.

[0008] Preferably, the connecting arm and the main control unit are plugged in; or connected by magnetic attraction.

[0009] Preferably, the connecting arm is simultaneously plug-connected or magnetically connected to the clamping unit.

[0010] Preferably, the first connecting line and the second connecting line coincide with each other.

[0011] Preferably, the main microphone and the secondary microphone are both located on the earpiece; or the main microphone is located on the connecting arm and the secondary microphone is located on the earpiece; or the main microphone is located on the connecting arm and the secondary microphone is located on the main control unit; or the main microphone and the secondary microphone are both located on the main control unit.

[0012] Preferably, the distance between the main microphone and the secondary microphone is G, wherein 10 mm ≤ G ≤ 50 mm; the distance between the user's mouth and the main microphone is K, wherein 70 mm ≤ K ≤ 130 mm.

[0013] Preferably, the clamping unit includes a first clamping component and a second clamping component that are arranged relative to each other to cooperate in providing clamping force; the first ends of the first clamping component and the second clamping component are both connected to the main control unit, and the second ends of the first clamping component and the second clamping component are arranged facing each other.

[0014] Preferably, the first clamping assembly and the second clamping assembly each include at least one clamping member; the first ends of the clamping members of the first clamping assembly and the second clamping assembly are respectively connected to the two end surfaces opposite to each other of the main control unit, and the second ends of the clamping members of the first clamping assembly and the second clamping assembly form openings relative to each other, and are clamped on the side and / or lower part of the ear by adjusting the openings.

[0015] Preferably, the first clamping assembly and the second clamping assembly each include a plurality of clamping members; the clamping members in the first clamping assembly and the second clamping assembly are arranged along the extension direction of the main control unit, and the clamping members of the first clamping assembly and the clamping members of the second clamping assembly are arranged in a one-to-one correspondence.

[0016] Preferably, the connecting arm includes a first connecting arm and a second connecting arm, the first end of the first connecting arm is connected to the earpiece, the second end of the first connecting arm is hinged to the first end of the second connecting arm, and the second end of the second connecting arm is detachably connected to the main control unit.

[0017] The beneficial effects of the utility model are:

[0018] The present invention provides a dual-microphone headset, comprising a main control unit, a clamping unit, an earpiece, a transmitter unit and a connecting arm. Since the transmitter unit includes two microphones, and the microphones have directional sound pickup, when the line connecting the user's mouth and the main microphone is a first line, and the line connecting the main microphone and the secondary microphone is a second line, and the angle between the first line and the second line is between ±60°, the user's voice can be clearly recognized, and the other directions are cleared to varying degrees. Therefore, the dual-microphone setting in this application can achieve the best sound pickup effect.

[0019] Because the clamping unit on the dual-microphone headset provides a clamping force to clamp to the side of the ear and / or below the ear, i.e., away from the upper part of the ear, and the connecting arm extends along the lower edge of the helix and bends upward to place the earpiece against the face or ear, the problem of overlapping and compressing the headset and other devices when worn above the ear is solved, and the comfort of wearing with other devices is improved. The present invention provides a brand-new headset structure, which provides a reverse wearing method compared to existing headsets, is more personalized and fashionable, and conforms to the trend of fashion.

[0020] Since one end of the connecting arm is detachably connected to the main control unit, the production of the earphones is facilitated, making production more optimized and maintenance more convenient. At the same time, since one end of the connecting arm is coaxially rotated with the main control unit, the axial direction still maintains a certain degree of freedom, and the earpiece connected to the connecting arm can be easily adjusted to fit the cheek, thereby enhancing the earphone wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the human ear;

[0022] Figure 2 Schematic diagram of the structure of the voice transmission unit in some embodiments;

[0023] Figure 3 Schematic diagram of the structure of the voice transmission unit in some embodiments;

[0024] Figure 4 Schematic diagram of the structure of the voice transmission unit in some embodiments;

[0025] Figure 5 Schematic diagram of the structure of the voice transmission unit in some embodiments;

[0026] Figure 6 This is a schematic diagram of the structure of a dual-microphone headset;

[0027] Figure 7 Schematic diagram of two pairs of clamps, the connecting arm in front of the earlobe, and the main control unit in front of the helix;

[0028] Figure 8 A schematic diagram of two pairs of clamps, the connecting arms in front of the earlobes, and the main control unit behind the helix;

[0029] Figure 9 A schematic diagram of two pairs of clamps, a connecting arm on the back of the earlobe, and a main control unit on the side of the helix;

[0030] Figure 10 Dual-mic headphones with three pairs of clamps;

[0031] Figure 11 This is a structural diagram showing that the connecting arm is detachably connected to the clamping unit and the main control unit;

[0032] Figure 12 It is a structural diagram of the connection between the connecting arm and the main control unit;

[0033] Figure 13 This is a structural diagram of the magnetic connection between the connecting arm and the main control unit.

[0034] [Description of Reference Numerals]

[0035] 1: Receiver;

[0036] 2: Connecting arm;

[0037] 3: Main control unit;

[0038] 4: Clamping unit; 41: First clamping assembly; 42: Second clamping assembly; 4a: Clamping member;

[0039] 5: Main microphone;

[0040] 6: Metal wire;

[0041] 7: Audio cable;

[0042] 8: Secondary microphone. DETAILED DESCRIPTION

[0043] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0044] like Figure 1 As shown, the user's ear may include physiological parts such as the helix, antihelix, concha, antitragus, earlobe, external auditory canal, tragus, and antihelix fossa. Furthermore, the concha, helix fossa, and antihelix physiological parts have a certain volume and depth.

[0045] like Figure 2 As shown, an embodiment of the present invention provides an earphone, which includes an earphone 1, a main control unit 3, a clamping unit 4, a connecting arm 2 and a transmitter unit, wherein the earphone 1 is used to provide sound to the user, the main control unit 3 is electrically connected to the earphone 1 and the transmitter unit respectively, the ear clip 4 is arranged on the main control unit 3, and provides a clamping force to clamp it on the side and / or lower part of the ear, one end of the connecting arm 2 is detachably connected to the main control unit 3 and is coaxially rotatable with the main control unit 3, and the other end of the connecting arm 2 is connected to the earphone 1, and the connecting arm 2 extends along the lower edge of the helix and bends upward to make the earphone 1 close to the face or ear.

[0046] The voice transmission unit includes a main microphone 5 and a secondary microphone 8, wherein the main microphone (close to the user's mouth) is responsible for capturing the user's voice signal, while the secondary microphone (far away from the user's mouth) is responsible for capturing the surrounding environmental noise. The main microphone 5 and the secondary microphone 8 can be located on any one or both of the earpiece 1, the main control unit 3, the clamping unit 4, or the connecting arm 2. In this embodiment, Figure 2 As shown, the primary microphone 5 is located closer to the user's mouth than the secondary microphone 8. The line connecting the user's mouth and the primary microphone is a first line, and the line connecting the primary microphone 5 and the secondary microphone 8 is a second line. The angle between the first and second lines is e, where -60° ≤ e ≤ 60°. It should be noted that the angle between the first and second lines is based on the second line. When the first line is above the second line, the angle is positive, and when the first line is below the second line, the angle is negative.

[0047] Since the voice transmission unit includes two microphones, and the microphones have directional sound pickup, when the angle between the first line and the second line is between ±60°, the user's voice can be recognized most clearly, and the rest of the directions are cleared to varying degrees. More preferably, the first line and the second line overlap. Since both microphones point in the same direction, that is, toward the user's mouth, the sound from other directions will be relatively attenuated due to the distance and direction. In this way, the impact of ambient noise and other interfering sounds will be significantly reduced. And by controlling the angle between the first line and the second line within ±60°, it is more sensitive to the sound from the direction of the user's mouth, and less sensitive to the sound from other directions. Therefore, the specific setting of the dual microphones in this application can achieve the best sound pickup and noise reduction effects.

[0048] In order to achieve a better noise reduction effect, the distance between the main microphone 5 and the secondary microphone 8 should be satisfied so that the phases of the sounds emitted from the user's mouth are consistent when they reach the main microphone 5 and the secondary microphone 8 respectively. In this application, beamforming signal processing technology is adopted. By adjusting the phase difference of the sound signals received by the main microphone and the secondary microphone, the sound from the target direction is consistent in phase when received, while the sounds from other directions cancel each other out due to the phase difference. Two microphone arrays are used to enhance the sound signal in the direction of the user's mouth while suppressing noise from other directions. Common beamforming algorithms include delay-and-sum method, minimum variance distortionless response (MVDR), etc. Beamforming algorithms are already existing technologies and will not be described in detail here.

[0049] like Figure 2 As shown, preferably, the main microphone 5 and the secondary microphone 8 can be both located on the earpiece 1, or as shown in FIG. Figure 5 As shown, the main microphone 5 is located on the connecting arm 2, and the secondary microphone 8 is located on the earpiece 1; or as shown in FIG. Figure 3 As shown, the main microphone 5 is located on the connecting arm 2, and the auxiliary microphone 8 is located on the main control unit 3; or as shown Figure 4 As shown, the main microphone 5 and the auxiliary microphone 8 are both located on the main control unit 3. It can be understood that the settings of the main microphone 5 and the auxiliary microphone 8 only need to meet the requirements of directional sound pickup technology and beamforming signal processing technology.

[0050] In this application, to reduce the size of the headset, the distance between the main microphone 5 and the secondary microphone 8 is G, 10mm≤G≤50mm. The distance between the user's mouth and the main microphone 5 is K, 70mm≤K≤130mm.

[0051] Because the clamping unit 4 on the earphone can provide a reciprocal clamping force to clamp the earphone to the side of the ear and / or the lower part of the ear, i.e., away from the upper part of the ear, and simultaneously cooperate with the connecting arm 2 to extend along the lower edge of the helix and bend upward to place the earpiece against the face or ear, the problem of overlapping and compressing the earphone with other devices when worn on the upper ear contour is solved, and the comfort of wearing with other devices is improved. The utility model provides a brand-new earphone structure, which provides a reverse wearing method compared to existing earphones, is more personalized and fashionable, and conforms to the trend of fashion.

[0052] The earpiece 1 can be a bone conduction speaker or a traditional air conduction speaker or other in-ear speaker. When the earpiece is an air conduction speaker or other in-ear speaker, the air conduction speaker or other in-ear speaker extends from the lower edge of the helix, passes in front of or behind the earlobe, then bends upward and rests against the external auditory canal of the ear. In this embodiment, the earpiece 1 is preferably a bone conduction speaker. The bone conduction speaker extends from the lower edge of the helix, passes in front of or behind the earlobe, then bends upward and rests against the user's face. This ensures that the bone conduction speaker does not interfere with the inner ear around the external auditory canal, and thus does not cause damage to the ear during long-term use. Preferably, the bone conduction speaker rests against the user's face, with its outer edge close to the tragus, to achieve a better bone conduction effect.

[0053] Bone conduction speakers transmit sound through the bones to the auditory system, thereby producing hearing. Generally speaking, bone conduction speakers generate and transmit sound through the following steps: Step 1: The bone conduction speaker acquires or generates a signal containing sound information, such as a current signal and / or voltage signal carrying audio information; Step 2: The driver in the bone conduction speaker vibrates in response to the signal; Step 3: The vibration is transmitted to the speaker housing via a transmission assembly.

[0054] Specifically, in step 1, the bone conduction speaker can acquire or generate a signal containing sound information in various ways. Sound information can refer to video or audio files in a specific data format, or it can generally refer to data or files that can ultimately be converted into sound through a specific method. The signal containing sound information can originate from the bone conduction speaker's own storage unit, or from an information generation, storage, or transmission system external to the bone conduction speaker. The sound signals discussed here are not limited to electrical signals and may also include other forms besides electrical signals, such as optical, magnetic, and mechanical signals. In principle, any signal containing sound information that can be used by the speaker to generate vibrations can be processed as a sound signal. Sound signals are not limited to a single signal source and can originate from multiple signal sources. These multiple signal sources can be related or independent. The sound signal transmission or generation method can be wired or wireless, and can be real-time or delayed. For example, the bone conduction speaker can receive an electrical signal containing sound information via wired or wireless means, or it can directly acquire data from a storage medium to generate the sound signal. In some embodiments, a component with a sound collection function may be added to the bone conduction hearing aid to achieve a noise reduction effect by picking up the ambient background sound and processing the received sound signal.

[0055] In this embodiment, the earpiece 1 is separately provided from the main control unit 3. The main control unit 3 is provided with control components such as a battery and a circuit board. The battery and the speaker in the earpiece 1 can be relatively large to meet the requirements of longer battery life and high-quality sound quality.

[0056] The term "sound quality" used here can be understood as reflecting the quality of sound, referring to the fidelity of audio after processing, transmission, and other processes. Sound quality is primarily described by three elements: loudness, pitch, and timbre. Loudness is the subjective perception of sound intensity by the human ear. It is proportional to the logarithm of sound intensity; higher intensity sounds appear louder. It is also related to the frequency and waveform of the sound. Pitch, also known as pitch, refers to the subjective perception of the frequency of sound vibrations by the human ear. Pitch is primarily determined by the fundamental frequency of the sound; higher fundamental frequencies indicate higher pitch. It is also related to the intensity of the sound. Timbre refers to the subjective perception of the distinctive characteristics of the sound by the human ear. Timbre is primarily determined by the spectral structure of the sound, as well as factors such as loudness, duration, buildup, and decay. The spectral structure of a sound is described by the fundamental frequency, the number of harmonics, the distribution of harmonics, amplitude, and phase relationships. Different spectral structures correspond to different timbre. Even with the same fundamental frequency and loudness, different harmonic structures will result in different timbre.

[0057] In the present application, the main body of the earphone is clamped on the side of the ear and / or the lower part of the ear by the clamping unit 4 to avoid the upper part of the ear, that is, to avoid the position of the upper edge of the helix, thereby solving the problem of overlap and compression between the earphone and other devices when worn on the upper ear contour, and improving the comfort of wearing with other devices at the same time. Among them, the side of the ear can be the side of the helix, the helix fossa, the antihelix and the antitragus, and the lower part of the ear can be the position of the earlobe. In the present application, the clamping unit 4 can be clamped on the side of the ear and / or the lower part of the ear, and any existing position that can be clamped on the ear except the position above the helix can be clamped, as long as the earphone can be prevented from falling. Whether the clamping unit 4 is clamped on the side of the ear or the lower part of the ear, or clamps the side of the ear and the lower part of the ear at the same time is determined by the shape of the clamping unit.

[0058] like Figure 12 and Figure 13 As shown, one end of the connecting arm is detachably connected to the main control unit, which facilitates the production of the earphones, makes production more optimized and maintenance more convenient. At the same time, since one end of the connecting arm is coaxially rotated with the main control unit, the axial direction still maintains a certain degree of freedom, and the earpiece connected to the connecting arm can be easily adjusted to fit the cheek, thereby enhancing the wearing experience of the earphones.

[0059] like Figure 12 As shown, the connecting arm 2 and the main control unit 3 are plugged together, and a protrusion can be set on the connecting arm 2, and a corresponding clamping groove can be set on the main control unit 3; or a clamping groove can be set on the connecting arm 2, and a corresponding protrusion can be set on the main control unit 3. Figure 13 As shown, the connecting arm 2 and the main control unit 3 are also connected by magnetic attraction.

[0060] like Figure 11 As shown, in order to increase the stability of the connection of the connecting arm 2, the connecting arm 2 can also be plugged or magnetically connected to the clamping unit 4 at the same time.

[0061] like Figures 6-10 As shown, the clamping unit 4 includes a first clamping component 41 and a second clamping component 42 that are relatively arranged to cooperate in providing clamping force. The first ends of the first clamping component 41 and the second clamping component 42 are both connected to the main control unit 3, and the second ends of the first clamping component 41 and the second clamping component 42 are arranged facing each other and cooperate with each other to provide an interactive clamping force to clamp on the side of the ear and / or the lower part of the ear.

[0062] The first end of the first clamping assembly 41 and the first end of the second clamping assembly 42 can be connected to the same side of the main control unit 3 at the same time, or can be connected to two opposite ends of the main control unit 3, such as Figure 6As shown, for ease of connection, it is preferably connected to the opposite end surfaces of the main control unit 3. The connection between the first clamping component 41 and the second clamping component 42 and the main control unit 3 can be a fixed or movable connection method such as clamping, hot pressing, riveting, bonding, plugging, magnetic attraction or injection molding.

[0063] Each of the first and second clamping assemblies 41, 42 includes at least one clamping member 4a. The clamping members 4a in each of the first and second clamping assemblies 41, 42 protrude outwardly, away from the helix, to form a receiving space between the clamping members 4a of the first and second clamping assemblies 41, 42 for accommodating the outer edge of the helix. It should be noted that the number of clamping members 4a in the first and second clamping assemblies 41, 42 can be the same or different. When the number of clamping members 4a in the first and second clamping assemblies 41, 42 is different, the clamping members 4a in the first and second clamping assemblies 41, 42 are staggered to increase clamping stability.

[0064] When the number of clamps in the first clamping assembly 41 and the second clamping assembly 42 is the same, the clamping members 4a in the first clamping assembly 41 and the clamping members 4a in the second clamping assembly 42 are arranged in a one-to-one correspondence. Each corresponding two clamping members 4a in the first clamping assembly 41 and the second clamping assembly 42 can be called a pair of clamping members 4a. In order to achieve clamping balance, the spacing in each pair of clamping members 4a can be changed. Multiple pairs of clamping members 4a can be set, such as Figure 6-Figure 9 For two pairs of clamping members 4a, such as Figure 10-11 There are three pairs of clamping members 4a, and of course one pair, two pairs, or four or more pairs of clamping members 4a can be provided according to actual conditions.

[0065] like Figures 6-10 Preferably, the clamping unit 4 includes two or three pairs of clamping members 4a. The clamping members 4a of the first clamping assembly 41 and the second clamping assembly 42 are arranged along the extension direction of the main control unit 3. The clamping members 4a of the first clamping assembly 41 and the clamping members 4a of the second clamping assembly 42 are arranged in a one-to-one correspondence. It should be noted that when the clamping members 4a extend a short distance, the clamping unit 4 clamps to the side of the ear or the lower part of the ear. When the clamping members 4a extend a long distance, the clamping unit 4 can clamp to both the side of the ear and the lower part of the ear.

[0066] Preferably, the clamping member 4a is made of elastic material, and can be clamped to the side and / or lower part of the ear through the elastic opening and closing angle of the clamping unit 4. The first ends of the clamping members 4a of the first clamping component 41 and the second clamping component 42 are respectively connected to the two opposite end surfaces of the main control unit 3, and the second ends of the first clamping component 41 and the second clamping component 42 form openings relative to each other, and the second ends of the first clamping component 41 and the second clamping component 42 elastically clamp the side and / or lower part of the ear.

[0067] Of course, the clamping member 4a can also be made of hard plastic material. The first ends of the clamping members 4a of the first clamping component 41 and the second clamping component 42 are respectively hinged to the two opposite end surfaces of the main control unit 3, and the second ends of the first clamping component 41 and the second clamping component 42 are relatively arranged to cooperate in clamping the side and / or lower part of the ear.

[0068] like Figure 11 As shown, in some embodiments, the connecting arm 2 can be made of an elastic material with an integrated structure, wherein the first end of the connecting arm 2 is connected to the earpiece 1, and the second end of the connecting arm 2 can also be detachably connected to the main control unit 3 and the clamping unit 4 at the same time, depending on the specific shape of the connecting arm 2. The elastic material refers to a shape memory alloy, which is an intelligent material that can restore its original shape under certain conditions. Preferably, it is a metal wire 6 and a soft rubber provided on the outside of the metal wire 6. The metal wire 6 is wrapped around the outside of the audio cable 7, thereby improving the wearing comfort. At the same time, after being stretched or torsionally deformed by a large force, it can still return to its original state. At the same time, the light weight of the connecting arm 2 further improves the comfort.

[0069] like Figure 7 As shown, in other embodiments, the connecting arm 2 is a hard plastic part and will not deform when worn. The connecting arm 2 includes a first connecting arm and a second connecting arm. The first end of the first connecting arm is connected to the earpiece 1, and the second end of the first connecting arm is hinged to the first end of the second connecting arm. The second end of the second connecting arm is detachably connected to the main control unit 3. Of course, the second end of the second connecting arm can also be detachably connected to the main control unit 3 and the clamping unit 4 at the same time, which is determined by the specific shape of the connecting arm 2.

[0070] It should be noted that in the actual application process, according to the actual situation, such as Figure 7-Figure 9 As shown, the connecting arm 2 is bent upward in front of or behind the earlobe. When worn, the main control unit 3 can be arranged on the front side, side or back side of the ear side and / or the lower part of the ear.

[0071] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0072] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0073] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0074] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0075] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A dual-microphone headset, characterized in that: It comprises a receiver (1), a transmitter unit, a main control unit (3), a clamping unit (4) and a connecting arm (2); The main control unit (3) is electrically connected to the earpiece (1) and the transmitter unit respectively; the clamping unit (4) is arranged on the main control unit (3) and provides a clamping force to clamp the earphone on the side and / or the bottom of the ear; One end of the connecting arm (2) is detachably connected to the main control unit (3) and is coaxially rotatable with the main control unit (3), and the other end is connected to the earpiece (1). In the wearing state, the connecting arm (2) extends along the lower edge of the helix and bends upward to make the earpiece (1) close to the face or ear. The voice transmission unit comprises a main microphone (5) and a secondary microphone (8), wherein the main microphone (5) and the secondary microphone (8) are respectively located on one or both of the receiver (1), the main control unit (3), the clamping unit (4), or the connecting arm (2), and the main microphone (5) is located on a side closer to the user's mouth relative to the secondary microphone (8); The line connecting the user's mouth and the main microphone is a first line, the line connecting the main microphone (5) and the auxiliary microphone (8) is a second line, and the angle between the first line and the second line is e, wherein -60°≤e≤60°.

2. The dual-microphone headset according to claim 1, wherein: The connecting arm (2) and the main control unit (3) are plugged in or connected by magnetic attraction.

3. The dual-microphone headset according to claim 2, wherein: The connecting arm (2) is simultaneously plug-connected or magnetically connected to the clamping unit (4).

4. The dual-microphone headset according to claim 1, wherein: The first connecting line and the second connecting line coincide with each other.

5. The dual-microphone headset according to claim 1, wherein: The main microphone (5) and the secondary microphone (8) are both located on the earpiece (1); or The main microphone (5) is located on the connecting arm (2), and the secondary microphone (8) is located on the earpiece (1); or The main microphone (5) is located on the connecting arm (2), and the auxiliary microphone (8) is located on the main control unit (3); or The main microphone (5) and the auxiliary microphone (8) are both located on the main control unit (3).

6. The dual-microphone headset according to any one of claims 1 to 5, wherein: The distance between the main microphone (5) and the auxiliary microphone (8) is G, wherein 10 mm ≤ G ≤ 50 mm; The distance between the user's mouth and the main microphone (5) is K, wherein 70 mm ≤ K ≤ 130 mm.

7. The dual-microphone headset according to claim 1, wherein: The clamping unit (4) comprises a first clamping component (41) and a second clamping component (42) which are arranged relative to each other to cooperate in providing the clamping force; The first ends of the first clamping assembly (41) and the second clamping assembly (42) are both connected to the main control unit (3), and the second ends of the first clamping assembly (41) and the second clamping assembly (42) are arranged facing each other.

8. The dual-microphone headset according to claim 7, wherein: The first clamping assembly (41) and the second clamping assembly (42) each include at least one clamping member (4a); The first ends of the clamping members (4a) of the first clamping assembly (41) and the second clamping assembly (42) are respectively connected to the two opposite end surfaces of the main control unit (3), and the second ends of the clamping members (4a) of the first clamping assembly (41) and the second clamping assembly (42) are relatively formed with openings, and are clamped on the side of the ear and / or the lower part of the ear by adjusting the openings.

9. The dual-microphone headset according to claim 7, wherein: The first clamping assembly (41) and the second clamping assembly (42) both include a plurality of clamping members (4a); The clamping members (4a) in the first clamping assembly (41) and the second clamping assembly (42) are both arranged along the extension direction of the main control unit (3), and the clamping members (4a) of the first clamping assembly (41) and the clamping members (4a) of the second clamping assembly (42) are arranged in a one-to-one correspondence.

10. The dual-microphone headset according to claim 1, wherein: The connecting arm (2) comprises a first connecting arm and a second connecting arm, wherein the first end of the first connecting arm is connected to the earpiece (1), the second end of the first connecting arm is hinged to the first end of the second connecting arm, and the second end of the second connecting arm is detachably connected to the main control unit.

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