Earphone and earphone system

Abstract

The utility model discloses an earphone and an earphone system. The earphone comprises a shell, the shell comprises a sound making part and an ear clip part, the sound making part is provided with a containing cavity, a loudspeaker is arranged in the containing cavity, the ear clip part comprises a connecting sub-part and a hook-shaped sub-part, the connecting sub-part is connected between the sound making part and the hook-shaped sub-part, and under the condition that a user wears the earphone, the sound making part is configured to be at least partially located in a conchae cavity of the user, and the hook-shaped sub-part is configured to be at least partially located in the conchae cavity of the user. The ear clip part extends to the position between the auricles and the head through the antihelix and the helix, the loudspeaker is provided with a sound emitting surface for sound waves to penetrate out, the sound emitting part is provided with a sound emitting hole, the sound emitting hole is used for sound emitted by the loudspeaker to penetrate out of the sound emitting part, the sound emitting surface faces the sound emitting surface, and the value range of the ratio of the closure area of the sound emitting hole to the area of the sound emitting surface is larger than or equal to 0.2. And less than or equal to 0.65.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and more specifically, to an earphone and an earphone system. Background Technology

[0002] Headphones are widely used in people's daily lives, and they can be used with electronic devices such as mobile phones and computers to provide users with sound playback functionality. However, when users wear headphones to play sound, the sound emitted by the speakers in the headphones may not be able to accurately propagate through the sound outlet, resulting in limited sound entering the ear canal and poor sound quality. Utility Model Content

[0003] To address at least one of the aforementioned technical problems, this application provides an earphone and an earphone system.

[0004] This application provides an earphone, which includes a housing, a sound-emitting part, and an ear clip. The sound-emitting part has a receiving cavity, and a speaker is disposed within the receiving cavity. The ear clip includes a connecting part and a hook-shaped part, with the connecting part connecting between the sound-emitting part and the hook-shaped part. When a user wears the earphone, the sound-emitting part is configured to be at least partially located within the user's concha. The ear clip extends from the antihelix and the helix to the space between the auricle and the head. The speaker has a sound-emitting surface for sound waves to pass through. The sound-emitting part has a sound-emitting surface and a sound-emitting hole. The sound-emitting hole allows the sound emitted by the speaker to pass through to the outside of the sound-emitting part. The sound-emitting surface faces the sound-emitting surface. The ratio of the intercepting area of ​​the sound-emitting hole to the area of ​​the sound-emitting surface is greater than or equal to 0.2 and less than or equal to 0.65.

[0005] In some embodiments, the hook-shaped portion extends first away from the sound-emitting portion and then bends and extends towards the sound-emitting portion, so that the housing forms a wearing space for accommodating the auricle of a human body.

[0006] In some embodiments, the earphone includes a first side and a second side opposite to each other in a first direction A1, the sound-emitting part is located on the first side of the earphone, the ear clip is located on the second side of the earphone, the sound-emitting part includes a sound-emitting surface and a back side opposite to each other in a second direction A2, the sound-emitting surface is provided with a sound-emitting hole, the sound-emitting hole is used to allow the sound emitted by the speaker to pass through to the outside of the sound-emitting part, and the first direction A1 is perpendicular to the second direction A2.

[0007] In some embodiments, the hook-shaped part has a width dividing plane Pw. Within the first projection plane Pw where the width dividing plane Pw is located, the projection of the ear clip includes an inner contour and an outer contour. The outer contour has a protrusion BP, which is the point of the ear clip that is farthest from the sound outlet in the first direction A1. The inner contour has a concave point CP, which is located within the wearing space.

[0008] In some embodiments, when the user wears the headphones, the first distance D1 between the centroid C1 of the projection T1 of the sound outlet and the centroid C2 of the projection T2 of the sound outlet surface is less than or equal to 1 mm within the second projection plane Ps where the sagittal plane of the human body is located.

[0009] In some embodiments, the first distance D1 is any value between 0.2mm and 0.9mm; or, the first distance D1 is any value between 0.26mm and 0.8mm; or, the first distance D1 is any value between 0.3mm and 0.7mm; or, the first distance D1 is any value between 0.4mm and 0.67mm; or, the first distance D1 is any value between 0.5mm and 0.6mm.

[0010] In some embodiments, when the user wears the headphones, the ratio of the area S1 of the projection T1 of the sound outlet to the area S2 of the projection T3 of the sound outlet within the second projection plane Ps of the sagittal plane of the human body is greater than or equal to 0.1 and less than or equal to 0.4.

[0011] In some embodiments, when the user wears the headphones, the ratio of the area S3 of the concha of the human body to the area S2 of the projection T3 of the sound-emitting part within the second projection plane Ps of the sagittal plane of the human body is greater than or equal to 0.7 and less than or equal to 0.95.

[0012] In some embodiments, when the user wears the headphones, the second distance D2 between the centroid C3 of the projection T3 of the sound outlet and the centroid C4 of the projection of the external auditory canal is greater than or equal to 1.5 mm and less than or equal to 11 mm within the second projection plane Ps where the sagittal plane of the human body is located.

[0013] In some embodiments, the second distance D2 is any value between 2mm and 10.8mm; or, the second distance D2 is any value between 3mm and 10mm; or, the second distance D2 is any value between 4mm and 9mm; or, the second distance D2 is any value between 5mm and 8mm; or, the second distance D2 is any value between 6mm and 7mm.

[0014] In some embodiments, the earphone further includes a third direction A3, which is perpendicular to both the first direction A1 and the second direction A2. The ratio between the length L1 of the sound-emitting part in the first direction A1 and the length L2 of the sound-emitting part in the third direction A3 is greater than or equal to 1.3 and less than or equal to 2.3.

[0015] In some embodiments, when the user wears the headphones, the sound-emitting part is at least partially housed within the concha of the human ear, within the second projection plane Ps of the sagittal plane of the human body.

[0016] The projection of the sound-emitting part at least partially overlaps with the projection of the human auricle; and / or,

[0017] The ratio between the projection of the sound-emitting part housed in the concha cavity of the human ear and the projection of the sound-emitting part is greater than or equal to 0.6 and less than or equal to 1.

[0018] In some embodiments, when the user wears the headphones, the third distance D3 between the centroid C3 of the projection T3 of the sound outlet and the centroid C5 of the projection of the ear clip is greater than or equal to 8 mm and less than or equal to 18 mm within the second projection plane Ps where the sagittal plane of the human body is located.

[0019] In some embodiments, the third distance D3 is any value between 8.5mm and 17mm; or, the third distance D3 is any value between 9mm and 15mm; or, the third distance D3 is any value between 9.5mm and 14mm; or, the third distance D3 is any value between 10mm and 13mm; or, the third distance D3 is any value between 11mm and 12mm.

[0020] In some embodiments, when the user wears the headphones, the area of ​​the contact area between the ear clip and the human ear is greater than or equal to 15 mm² and less than or equal to 35 mm².

[0021] In some embodiments, the contact area between the ear clip and the human ear can be any value between 16 mm² and 33 mm²; or, the contact area between the ear clip and the human ear can be any value between 17 mm² and 28 mm²; or, the contact area between the ear clip and the human ear can be any value between 18 mm² and 23 mm²; or, the contact area between the ear clip and the human ear can be any value between 19 mm² and 22 mm²; or, the contact area between the ear clip and the human ear can be any value between 20 mm² and 21 mm².

[0022] In some embodiments, the headphones further include a circuit board, a communication unit, and a battery. The circuit board and the battery are housed in the housing cavity, the communication unit is disposed in the sound output section, and the communication unit, the battery, and the speaker are all electrically connected to the circuit board. The circuit board, the battery, and the speaker are stacked sequentially on the back of the housing in the direction from the sound output surface.

[0023] In some embodiments, the earphones further include a charging terminal, which is at least partially housed in the accommodating cavity and exposed from the housing, and the charging terminal is electrically connected to the circuit board.

[0024] This application also provides an earphone system. The earphone system includes the earphones and charging case described in any of the above embodiments, wherein the charging case is used to charge the earphones.

[0025] In the earphone and earphone system of this application embodiment, the sound-emitting part is housed in the concha cavity, which facilitates the fixation of the earphone to the concha cavity. The ear clip extends from the antihelix and helix to the space between the auricle and the head, which can further fix the earphone and improve the wearing stability of the earphone. The ratio of the cross-sectional area of ​​the sound outlet 1111 to the area of ​​the sound outlet surface 21 is between 0.2 and 0.65. The sound outlet 1111 can provide a suitable sound propagation channel, and the sound emitted by the speaker 20 can be effectively released through the sound outlet 1111, avoiding the restriction or excessive diffusion of sound propagation, and ensuring smooth and clear sound.

[0026] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0028] Figure 1 This is a three-dimensional structural diagram of a headphone system according to certain embodiments of this application;

[0029] Figure 2 yes Figure 1 The diagram shows a three-dimensional structural representation of the headphones in the headphone system from one perspective.

[0030] Figure 3 yes Figure 1 The diagram shows a three-dimensional structural representation of the headphones in the headphone system from another perspective.

[0031] Figure 4 yes Figure 1 The diagram shows a three-dimensional structure of the earphones worn on the ear in the earphone system.

[0032] Figure 5 yes Figure 3 The diagram shows a partial cross-section of the earphone along its width.

[0033] Figure 6 yes Figure 3 The diagram shown is a projection of the headphones being worn on the ear.

[0034] Figure 7 yes Figure 3 The diagram shown is a projection of the headphones being worn on the ear.

[0035] Figure 8 yes Figure 3 The diagram shows a planar structure of the headphones from another perspective.

[0036] Explanation of key component symbols:

[0037] Headphone system 1000; headphones 100, housing 10, wearing space 101, accommodating cavity 102, first side 103, second side 105, sound outlet 11, sound outlet surface 111, sound outlet hole 1111, back 113, ear clip 13, connecting part 131, hook-shaped part 133, speaker 20, sound outlet surface 21, circuit board 30, communication unit 40, battery 50, charging terminal 60, charging case 300. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0039] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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 technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0041] Please see Figures 1 to 3 The headphone system 1000 provided in this embodiment includes headphones 100 and a charging case 300. The charging case 300 is used to charge the headphones 100. Since the headphone system 1000 in this embodiment includes headphones 100, it is understood that the headphone system 1000 includes at least the same beneficial effects as headphones 100. Therefore, please refer to the beneficial effects of headphones 1000 described below for the beneficial effects of headphones 100.

[0042] Please combine Figure 4 The earphone 100 can be worn on the user's ear and can be used with mobile phones, computers, smart wearable devices (such as smartwatches, smart bracelets, smart glasses, and smart helmets), head-mounted displays, and virtual reality devices. It should be noted that the user's ear includes the auricle, external auditory canal, concha, helix, and antihelix. The auricle is the outer ear located on either side of the head. The upper part of the auricle is supported by elastic cartilage and covered with skin and a small amount of subcutaneous tissue. The lower part of the auricle includes the earlobe, which lacks cartilage and is mainly composed of connective tissue and fat, often used for blood collection. The auricle is a part used to collect sound waves, including the front of the auricle near the facial features and the back of the auricle opposite to the front. The external auditory canal is an organ structure inside the ear, serving as a passage connecting the outer and middle ear, transmitting external sound waves to the eardrum. The helix is ​​the outermost part of the ear's outer contour, also known as the edge of the auricle. It connects to the earlobe and is the curled part of the auricular cartilage, usually shaped like a question mark. It is located on the upper front of the auricle and extends towards the ear canal opening. The concha is a concave structure on the front of the auricle, the largest depression on its surface. The antihelix is ​​the Y-shaped raised portion opposite the helix, composed of the antihelix body, the superior crus of the antihelix, and the inferior crus of the antihelix.

[0043] In some embodiments, when the earphone 100 is placed in the charging case 300, the charging case 300 can deliver electrical energy to the earphone 100 to charge the earphone 100. The charging case 300 is provided with a power terminal (not shown), and the earphone 100 is provided with a charging terminal. The charging terminal is at least partially housed in the housing 10 of the earphone 100 and exposed from the housing 10. The charging terminal 60 is electrically connected to the circuit board 30 of the earphone 100. When the earphone 100 is placed in the charging case 300, the charging terminal 60 and the power terminal are electrically connected.

[0044] Please see Figures 2 to 5 The earphone 100 includes a housing 10. The housing 10 includes a sound-emitting part 11 and an ear clip part 13. The sound-emitting part 11 has a receiving cavity 102, and a speaker 20 is provided in the receiving cavity 102. The ear clip part 13 includes a connecting part 131 and a hook-shaped part 133. The connecting part 131 is connected between the sound-emitting part 11 and the hook-shaped part 133. When the user wears the earphone 100, the sound-emitting part 11 is configured to be at least partially located in the user's concha cavity, and the ear clip part 13 extends from the antihelix and the helix to the space between the auricle and the head.

[0045] Specifically, the housing 10 is a structure used to house other components besides the housing 10 itself, and to house these other components within the housing 10. The housing 10 of this application is used to mount other components of the earphone 100 (e.g., speaker 20), and to house these other components within the housing 10, thus protecting them. The housing 10 can be made of plastic and / or metal, etc. When the housing 10 is made of plastic, it has good insulation properties, low cost, and light weight. When the housing 10 is made of metal, it has high strength, good wear resistance, and a long service life. When the housing 10 is made of a composite material of plastic and metal, it combines the advantages of high strength and light weight.

[0046] It is understood that the housing 10 is not only used to house other components, but also, when the user wears the headphones 100, at least a portion of the housing 10 contacts the user's ear, thereby securing the headphones 100 to the user's ear. Therefore, the size, shape, and material parameters of the housing 10 directly affect the user's comfort when wearing the headphones 100 and the acoustic performance of the headphones 100.

[0047] The sound outlet 11 houses components such as the speaker 20. The speaker 20 is fixed within the sound outlet 11, which provides a stable position for the speaker 20, ensuring its operation is unaffected by external vibrations or movement. Sound can propagate from the sound outlet 11 to the outside. When the user wears the headphones 100, the sound outlet 11 is at least partially located within the user's concha, close to the external auditory canal. The concha is a natural acoustic cavity that provides initial focusing and guidance of sound. The sound emitted by the speaker 20 propagates from the sound outlet 11 into the concha and then into the external auditory canal. This short propagation path improves sound transmission efficiency and enhances clarity. Furthermore, the short propagation path reduces energy loss during propagation, allowing the speaker 20 to output sound at lower power, thus extending the headphone 100's battery life.

[0048] The ear clip 13 is a component used to further secure the earphone 100 to the ear. The ear clip 13 includes a connecting part 131 and a hook-shaped part 133. The connecting part 131 connects the sound outlet part 11 and the hook-shaped part 133. In some embodiments, the connecting part 131 and the hook-shaped part 133 are an integral structure; in another embodiment, the connecting part 131 and the hook-shaped part 133 are two separate structures, which are subsequently combined into the ear clip 13 by a specific connection method. The "specific connection method" includes, but is not limited to, detachable connection methods, such as threaded connection, snap-fit, etc., and non-detachable connection methods, such as welding, gluing, etc. In some embodiments, the sound-emitting part 11 and the connecting part 131 may be an integral structure, that is, the sound-emitting part 11 and the connecting part 131 are a single unit. This improves the bonding strength between the sound-emitting part 11 and the connecting part 131, preventing separation of the sound-emitting part 11 and the connecting part 131 during the operation of the housing 10, thereby ensuring the stability and reliability of the housing 10. In other embodiments, the sound-emitting part 11 and the connecting part 131 are separate structures, that is, the sound-emitting part 11 and the connecting part 131 are two different structures. In one example, the sound-emitting part 11 and the connecting part 131 may be joined together by a detachable connection method, including but not limited to snap-fit ​​connections or threaded connections. In another example, the sound-emitting part 11 and the connecting part 131 may be joined together by a non-detachable connection method, including but not limited to bonding or welding.

[0049] The hook-shaped part 133 is an extension of the ear clip part 13, and has a certain curvature. Its shape is curved or hook-shaped so that it extends from the antihelix and auricle of the user's ear to the space between the auricle and the head, thereby supporting and fixing the earphone 100. In this application, the auricle is defined based on the sagittal plane of the human body, including the opposite back and front of the auricle, with the front of the auricle being closer to the facial features than the back.

[0050] Please see Figure 2 , Figure 3 and Figure 5 In some embodiments, the hook-shaped portion 133 extends first away from the sound-emitting portion 11 and then bends and extends towards the sound-emitting portion 11 so that the housing 10 forms a wearing space 101 for accommodating the auricle of a human body.

[0051] Specifically, the wearing space 101 is the area enclosed by the ear clip 13 and the sound outlet 11. Its size and shape are suitable for accommodating the auricle of the human body to ensure the stability and comfort of the headphones 100 when worn. The hook-shaped part 133 extends first away from the sound outlet 11, providing sufficient initial space to accommodate auricles of different sizes; then it bends and extends closer to the sound outlet 11 to help hook onto the auricle, improving the fixation performance of the headphones 100. The wearing space 101 can adapt to the natural curve of the auricle, thereby avoiding compression or slippage of the auricle and improving the comfort and stability when worn.

[0052] Please see Figure 2 , Figure 3 and Figure 5 In some embodiments, the earphone 100 includes a first side 103 and a second side 105 opposite to each other in the first direction A1. The sound output part 11 is located on the first side 103 of the earphone 100, and the ear clip part 13 is located on the second side 105 of the earphone 100. The sound output part 11 includes a sound output surface 111 and a back surface 113 opposite to each other in the second direction A2. The sound output surface 111 is provided with a sound output hole 1111, which is used to allow the sound emitted by the speaker 20 to pass through to the outside of the sound output part 11. The first direction A1 is perpendicular to the second direction A2.

[0053] Although the earphone 100 has an irregular shape, according to the common definition of length, width, and height (thickness), the first direction A1 in this application can be understood as the length direction of the earphone 100, the second direction A2 can be understood as the width direction of the earphone 100, and the third direction A3 in the following text can be understood as the thickness direction of the earphone 100. When a user wears the earphone 100, the first direction A1 is approximately parallel to the sagittal plane of the human body, and the second direction A2 is approximately perpendicular to the sagittal plane of the human body.

[0054] The sound-emitting part 11 includes a sound-emitting surface 111 and a back surface 113 opposite to the sound-emitting surface 111 in the second direction A2. The sound-emitting surface 111 is provided with a sound-emitting hole 1111, through which the sound emitted by the speaker 20 can pass through the sound-emitting part 11 and propagate to the outside. When the user wears the headphones 100, the sound-emitting surface 111 faces the concha cavity, and the sound can directly enter the external auditory canal from the concha cavity, which can reduce the sound quality loss caused by sound scattering and improve the acoustic effect. The shape of the sound-emitting hole 1111 can be, but is not limited to, a circle, an ellipse, a triangle, a quadrilateral or other polygons. There can be one or more sound-emitting holes 1111, which is not limited in this application. On the other hand, the back surface 113 is away from the concha cavity and is located on the side opposite to the sound-emitting surface 111 in the second direction A2. The back surface 113 can block the sound emitted by the speaker 20 from propagating in the opposite direction. Specifically, the back surface 113 can be flat, curved, or other geometrically shaped to fit the overall shape of the headphones 100 and meet acoustic requirements. The material of the back surface 113 can be a material with good sound absorption properties, such as composite materials, plastics, or metals coated with sound-absorbing coatings, to further reduce interference caused by sound propagation through the housing 10.

[0055] Please see Figure 2 , Figure 3 and Figure 5 The hook-shaped part 133 has a width dividing plane Pw. Within the first projection plane Pw where the width dividing plane Pw is located, the projection of the ear clip part 13 includes an inner contour and an outer contour. The outer contour has a protrusion BP, which is the point of the ear clip part 13 farthest from the sound outlet part 11 in the first direction A1. The inner contour has a concave point CP, which is located within the wearing space 101.

[0056] As mentioned earlier, the width direction is... Figure 2 or Figure 3 The third direction A3 shown has a width-bisector plane that passes through the midpoint of the width and is perpendicular to the width direction. The inner contour of the projection of the ear clip 13 is the contour close to the sound outlet 11, and the outer contour of the projection of the ear clip 13 is the contour away from the sound outlet 11. The outer contour of the projection of the ear clip 13 is a convex surface protruding from the first side 103 to the second side 105, and the point of this convex surface farthest from the sound outlet 11 in the first direction A1 is the convex point BP. The inner contour of the ear clip 13 is a concave surface recessed from the first side 103 to the second side 105, and the point of this concave surface farthest from the sound outlet 11 in the first direction A1 is the concave point CP. The concave point CP is located inside the wearing space 101, and the convex point BP is located outside the wearing space 101.

[0057] Please see Figure 4 and Figure 5In some embodiments, the loudspeaker 20 has a sound-emitting surface 21 through which sound waves pass, the sound-emitting surface 21 facing the sound-emitting surface 111, and the ratio of the intercepting area of ​​the sound-emitting hole 1111 to the area of ​​the sound-emitting surface 21 is greater than or equal to 0.2 and less than or equal to 0.65.

[0058] Specifically, the ratio of the intercepting area of ​​the sound outlet 1111 to the area of ​​the sound outlet surface 21 can be: 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, or 0.65. Preferably, the ratio of the intercepting area of ​​the sound outlet 1111 to the area of ​​the sound outlet surface 21 is 0.62.

[0059] If the ratio of the cross-sectional area of ​​the sound outlet 1111 to the area of ​​the sound outlet surface 21 is less than 0.2, it indicates that the area of ​​the sound outlet 1111 is too small relative to the sound outlet part 11 of the speaker 20. Insufficient area of ​​the sound outlet 1111 prevents the sound emitted by the speaker 20 from propagating through the sound outlet 1111, resulting in obstructed sound output. The sound is constrained during propagation and cannot fully release its energy, making the overall sound effect muffled and lacking penetration. Furthermore, an excessively small sound outlet 1111 may also cause the sound to be too concentrated, producing a local compression effect, resulting in unbalanced sound and further reducing sound quality.

[0060] If the ratio of the cross-sectional area of ​​the sound outlet 1111 to the area of ​​the sound outlet surface 21 is greater than 0.65, then the area of ​​the sound outlet 1111 is too large relative to the area of ​​the speaker 20, resulting in excessive sound diffusion during propagation. This causes the sound energy to attenuate rapidly during propagation, and excessive sound diffusion may lead to unclear sound quality and poor sound output.

[0061] The ratio of the cross-sectional area of ​​the sound outlet 1111 to the area of ​​the sound outlet surface 21 is between 0.2 and 0.65. The sound outlet 1111 can provide a suitable sound propagation channel, and the sound emitted by the speaker 20 can be effectively released through the sound outlet 1111, avoiding the constraint or excessive diffusion of sound propagation, and ensuring the smoothness and clarity of the sound.

[0062] Please see Figure 4 , Figure 5 and Figure 6 In some embodiments, when the user wears the headphones 100, the first distance D1 between the centroid C1 of the projection T1 of the sound outlet 1111 and the centroid C2 of the projection T2 of the sound outlet surface is less than or equal to 1 mm within the second projection plane Ps where the sagittal plane of the human body is located.

[0063] Specifically, the first distance D1 can be 0.1mm, 0.2mm, 0.26mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.67mm, 0.7mm, 0.8mm, 0.9mm, or 1mm. In some embodiments, the first distance D1 is any value between 0.2mm and 0.9mm; or, the first distance D1 is any value between 0.26mm and 0.8mm; or, the first distance D1 is any value between 0.3mm and 0.7mm; or, the first distance D1 is any value between 0.4mm and 0.67mm; or, the first distance D1 is any value between 0.5mm and 0.6mm.

[0064] If the first distance D1 is greater than 1mm, the sound outlet 1111 will be significantly offset from the direction of sound propagation. The sound propagation path may be obstructed or deviated, resulting in a large deviation between the direction of sound propagation and the concha cavity, thus affecting the sound quality.

[0065] If the first distance D1 is less than or equal to 1mm, the sound outlet 1111 is closer to the direction of sound propagation, and the sound can be effectively transmitted to the concha cavity, avoiding problems of distortion or excessive diffusion. At the same time, because the alignment of the sound outlet 1111 with the direction of sound propagation is more precise, the earphone 100 is more stable when worn, avoiding sound leakage or unevenness.

[0066] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, when the user wears the headphones 100, the ratio of the area S3 of the projection T1 of the sound outlet 1111 to the area S2 of the projection T3 of the sound outlet 11 within the second projection plane Ps where the sagittal plane of the human body is located is greater than or equal to 0.1 and less than or equal to 0.4.

[0067] Specifically, the ratio of area S3 to area S4 can be: 0.1, 0.12, 0.14, 0.16, 0.18, 0.2, 0.25, 0.3, 0.35, or 0.4. Preferably, the ratio of area S3 to area S4 is 0.16.

[0068] Understandably, the ratio of area S3 to area S4 reflects the degree of coverage of the sound outlet 1111 over the sound outlet part 11 of the loudspeaker 20, and characterizes the effective area through which sound passes through the sound outlet 1111.

[0069] If the ratio of area S3 to area S4 is less than 0.1, it indicates that the area of ​​the sound outlet 1111 is too small relative to the area of ​​the sound outlet 11. The sound outlet 1111 cannot effectively output the sound emitted by the speaker 20, resulting in insufficient sound release and a muffled or lacking-penetration sound quality. Simultaneously, an excessively small sound outlet 1111 may restrict sound propagation, causing uneven or distorted sound, further reducing sound quality. If the ratio of area S3 to area S4 is greater than 0.4, the area of ​​the sound outlet 1111 is relatively too large, potentially leading to excessive sound diffusion and unstable sound propagation direction, resulting in a blurry or unclear sound quality, especially poor performance in the high-frequency range. A ratio of area S3 to area S4 between 0.1 and 0.4 ensures a reasonable match between the area of ​​the sound outlet 1111 and the area of ​​the sound outlet 11, guaranteeing effective sound output while avoiding excessive sound diffusion or confinement, thus ensuring clear sound quality.

[0070] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, when the user wears the headphones 100, the ratio of the area S3 of the projection T4 of the concha cavity of the human body to the area S2 of the projection T3 of the sound output part 11 within the second projection plane Ps where the sagittal plane of the human body is located is greater than or equal to 0.7 and less than or equal to 0.95.

[0071] Specifically, the ratio of the projected area S3 of the concha cavity to the projected area S2 of the sound outlet 11 can be 0.7, 0.72, 0.74, 0.76, 0.78, 0.8, 0.82, 0.84, 0.86, 0.9 or 0.95, preferably 0.86.

[0072] If the ratio of the projected area S3 of the concha cavity to the projected area S2 of the sound output part 11 is less than 0.7, the projected area S2 of the sound output part 11 is too large relative to the concha cavity. This mismatch between the size of the sound output part 11 and the concha cavity may prevent the earphone 100 from making a tight contact with the concha cavity when worn, resulting in a loose feeling, unstable fit, and easy slippage or falling out, affecting the comfort and stability of wearing the earphone. In addition, an excessively large sound output part 11 may exert strong contact pressure on the auricle, causing excessive compression of the auricle, which may lead to discomfort or pain, affecting the comfort of wearing the earphone 100 for extended periods.

[0073] If the ratio of the projected area S3 of the concha cavity to the projected area S2 of the sound-emitting part 11 exceeds 0.95, the sound-emitting part 11 is relatively small, resulting in insufficient contact area between the sound-emitting part 11 and the concha cavity, and thus the headphone 100 cannot be stably fixed. At the same time, a smaller sound-emitting part 11 may lead to insufficient contact area between the headphone 100 and the auricle, making the headphone 100 prone to sound leakage.

[0074] The ratio of the projected area S3 of the concha cavity (T4) to the projected area S2 of the sound output part 11 (T3) is greater than or equal to 0.7 and less than or equal to 0.95. The projected area T4 of the sound output part 11 is relatively balanced with the projected area T5 of the concha cavity. This ensures sufficient contact area between the earphone 100 and the concha cavity, providing a stable wearing effect, while avoiding excessive pressure on the auricle and improving wearing comfort. Simultaneously, it also ensures good sound output from the earphone 100 and reduces sound leakage.

[0075] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, when the user wears the headphones 100, the second distance D2 between the centroid C3 of the projection T3 of the sound output part 11 and the centroid C4 of the projection of the external auditory canal is greater than or equal to 1.5 mm and less than or equal to 11 mm within the second projection plane Ps where the sagittal plane of the human body is located.

[0076] Specifically, the second distance D2 can be 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 10.8mm, or 11mm. In some embodiments, the second distance D2 is any value between 2mm and 10.8mm; or, the second distance D2 is any value between 3mm and 10mm; or, the second distance D2 is any value between 4mm and 9mm; or, the second distance D2 is any value between 5mm and 8mm; or, the second distance D2 is any value between 6mm and 7mm.

[0077] If the second distance D2 is less than 1.5mm, the sound outlet 1111 of the sound outlet 11 may be too close to the ear canal, causing the earphone 100 to make too tight a contact with the ear canal. The ear canal may be subjected to excessive pressure from the earphone 100, causing discomfort to the user. In addition, an excessively small second distance D2 may also affect the sound transmission path. When the earphone 100 is in too tight a contact with the ear canal, the shape of the ear canal may restrict the natural propagation of sound, resulting in uneven sound transmission or local distortion.

[0078] If the second distance D2 is greater than 11mm, the distance between the sound outlet 11 and the external auditory canal is too large, causing excessive diffusion of sound during propagation. This excessive distance causes the sound to diffuse rapidly along its propagation path, resulting in attenuation of sound energy. This attenuation leads to insufficient sound intensity received by the external auditory canal, failing to provide ideal sound quality and auditory experience. The sound fails to be effectively focused and conducted into the external auditory canal, affecting the user's hearing.

[0079] In this embodiment, the second distance D2 is greater than or equal to 1.5mm and less than or equal to 11mm, ensuring that there is an appropriate distance between the earphone 100 and the external ear canal. This ensures that the earphone 100 does not put too much pressure on the external ear canal when worn, and that the sound can be effectively transmitted within the external ear canal, avoiding excessive diffusion or attenuation, releasing sound energy to the maximum extent, and maintaining the clarity and intensity of the sound.

[0080] Please see Figure 4 , Figure 5 and Figure 8 In some embodiments, the headphone 100 further includes a third direction A3, which is perpendicular to both the first direction A1 and the second direction A2. The ratio between the length L1 of the sound output part 11 in the first direction A1 and the length L2 of the sound output part 11 in the third direction A3 is greater than or equal to 1.3 and less than or equal to 2.3.

[0081] Specifically, the ratio of the length L1 of the sound-emitting part 11 in the first direction A1 to the length L2 of the sound-emitting part 11 in the third direction A3 can be 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, or 2.3. Preferably, the ratio of the length L1 of the sound-emitting part 11 in the first direction A1 to the length L2 of the sound-emitting part 11 in the third direction A3 is 1.57.

[0082] The length L1 of the sound-emitting part 11 in the first direction A1 represents the size of the sound-emitting part 11 in the first direction A1, which is related to the distance from the concha cavity to the auricle of the earphone 100. The length L2 of the sound-emitting part 11 in the third direction A3 represents the size of the sound-emitting part 11 in the third direction A3, which is related to the size of the concha cavity.

[0083] If the ratio of the length L1 in the first direction A1 to the length L2 of the sound-emitting part 11 in the third direction A3 is less than 1.3, then the length L2 of the sound-emitting part 11 in the third direction A3 is too small, making it difficult for at least a portion of the sound-emitting part 11 to engage with the concha cavity. This results in unstable or uncomfortable wearing, causing the earphone 100 to slip or fall off during wear, affecting the stability of the fit. Simultaneously, because the earphone 100 cannot engage well with the concha cavity, sound cannot effectively enter the external auditory canal, causing a decrease in sound propagation efficiency, leading to sound quality distortion or insufficient transmission, affecting the user's listening experience. If the ratio of the length L1 in the first direction A1 to the length L2 of the sound-emitting part 11 in the third direction A3 is greater than 2.3, then the length L2 of the sound-emitting part 11 in the third direction A3 is too large, making it difficult for the sound-emitting part 11 to partially enter the concha cavity, resulting in unstable wearing and affecting wearing comfort and sound quality transmission within the external auditory canal.

[0084] The ratio of the length L1 in the first direction A1 to the length L2 of the sound output part 11 in the third direction A3 is greater than or equal to 1.3 and less than or equal to 2.3. This ensures that the earphone 100 can comfortably fit the structure of the concha cavity, that the sound output part 11 can properly connect with the concha cavity, and that the stability and comfort during wearing are guaranteed. At the same time, it also ensures that the sound can be transmitted into the ear canal, thereby improving the sound propagation efficiency.

[0085] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, when the user wears the headphones 100, the sound output part 11 is at least partially housed in the concha cavity of the human body, and the projection of the sound output part 11 at least partially coincides with the projection of the helix of the human body in the second projection plane Ps where the sagittal plane of the human body is located.

[0086] Specifically, the sound-emitting part 11 is at least partially housed within the concha cavity, ensuring that the sound outlet 1111 of the earphone 100 is aligned with the concha cavity, thereby preventing excessive diffusion or energy attenuation of sound during propagation. The projection of the sound-emitting part 11 at least partially overlaps with the projection of the helix, enabling the earphone 100 to partially contact the helix and enhancing the stability of wearing the earphone 100. The helix is ​​an important structure of the ear, and good contact helps to secure the earphone 100, preventing it from slipping or loosening during wear.

[0087] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, the ratio between the projection of the sound-emitting part 11 located in the concha cavity of the human body and the projection of the sound-emitting part 11 is greater than or equal to 0.6 and less than or equal to 1.

[0088] Specifically, the ratio between the projection of the sound-emitting part 11 located in the concha cavity of the human ear and the projection of the sound-emitting part 11 can be 0.6, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68 or 1. Preferably, the ratio is 0.7.

[0089] If the ratio between the projection of the sound-emitting part 11 within the concha cavity and the projection of the sound-emitting part 11 itself is less than 0.6, the projected area of ​​the sound-emitting part 11 within the concha cavity is too small, causing the earphone 100 to be unable to be securely fixed to the ear, increasing the risk of the earphone 100 slipping or falling out. An excessively small ratio may also result in wasted space in the design of the earphone 100, failing to make reasonable use of the space within the concha cavity. This not only affects wearing comfort but may also lead to an ergonomic design of the earphone 100, resulting in unnecessary size waste.

[0090] If the ratio between the projection of the sound-emitting part 11 within the concha cavity and the projection of the sound-emitting part 11 is greater than or equal to 0.6 and less than or equal to 1, the sound-emitting part 11 can reasonably adapt to the space of the concha cavity, ensuring that the earphone 100 is fixed and stable within the concha cavity, avoiding instability and discomfort caused by excessively small size. Furthermore, an appropriate ratio can effectively utilize the space of the concha cavity, avoiding waste due to an excessively large earphone 100 size and improving wearing comfort.

[0091] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, when the user wears the headphones 100, the third distance D3 between the centroid C3 of the projection T3 of the sound output part 11 and the centroid C5 of the projection of the ear clip part 13 within the second projection plane Ps where the sagittal plane of the human body is located is greater than or equal to 8 mm and less than or equal to 18 mm.

[0092] Specifically, the third distance D3 can be 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, or 18mm. Preferably, the third distance D3 is 13.86mm. In some embodiments, the third distance D3 is any value between 8.5mm and 17mm; or, the third distance D3 is any value between 9mm and 15mm; or, the third distance D3 is any value between 9.5mm and 14mm; or, the third distance D3 is any value between 10mm and 13mm; or, the third distance D3 is any value between 11mm and 12mm.

[0093] If the third distance D3 is less than 8mm, the shape of the earphone 100 will be too compact, and the distance between the sound output part 11 and the ear clip part 13 will be insufficient, making it difficult to fit the structure of the ear, especially the distance from the concha to the helix. This design will cause the sound output part 11 to not be able to fully accommodate the concha, affecting the wearing comfort and stability of the earphone 100. The earphone 100 may become unstable and even slip off during wear. In addition, an excessively small third distance D3 will result in an unreasonable size of the earphone 100, which may affect the sound propagation effect and lead to a poor sound quality experience.

[0094] If the third distance D3 is greater than 18mm, the shape of the earphone 100 will be too loose, and the distance between the sound output part 11 and the ear clip 13 will be too large. This will make it difficult for the sound output part 11 to adapt to the shape of the concha and completely fit into the concha. At the same time, the distance between the ear clip 13 and the back of the auricle 113 will be too large, making the earphone 100 unstable and potentially causing it to loosen or slip off during wear, affecting the wearing experience and the stability of the earphone 100. More seriously, an excessively large fifth distance S5 will result in an excessively long sound propagation path between the earphone 100 and the ear, causing the sound to not be effectively transmitted into the ear canal, resulting in reduced sound quality. Therefore, an excessively large third distance D3 will not only affect the wearing stability of the earphone 100 but may also cause sound attenuation and reduced transmission efficiency, affecting the final audio experience.

[0095] When the third distance D3 is between 8mm and 18mm, it can ensure a good fit between the sound output part 11 and the concha cavity. The earphone 100 can maintain stable contact between the ear clip part 13 and the back of the auricle 113 to avoid slipping, and can also ensure that the sound output part 11 can effectively transmit sound, guaranteeing the clarity and accuracy of the sound quality, while improving the comfort and stability of wearing.

[0096] Please see Figure 4 and Figure 5 In some embodiments, when the user wears the earphone 100, the contact area between the ear clip 13 and the human ear is greater than or equal to 15 mm² and less than or equal to 35 mm².

[0097] Specifically, the contact area between the ear clip 13 and the human ear can be 15mm², 16mm², 17mm², 18mm², 19mm², 20mm², 21mm², 22mm², 23mm², 28mm², 33mm², or 35mm², with a preferred value of 24mm². In some embodiments, the contact area between the ear clip 13 and the human ear can be any value between 16mm² and 33mm²; or, the contact area between the ear clip 13 and the human ear can be any value between 17mm² and 28mm²; or, the contact area between the ear clip 13 and the human ear can be any value between 18mm² and 23mm²; or, the contact area between the ear clip 13 and the human ear can be any value between 19mm² and 22mm²; or, the contact area between the ear clip 13 and the human ear can be any value between 20mm² and 21mm².

[0098] If the contact area between the ear clip 13 and the human ear is less than 15mm², the pressure will be concentrated in a certain area of ​​the ear, and the pressure cannot be distributed. Wearing it for a long time will cause discomfort, pain or irritation to the ear.

[0099] If the contact area between the ear clip 13 and the human ear is greater than 35mm², the contact area will increase the contact area between the ear clip 13 and the skin. Especially during exercise, the ear is prone to friction with the ear clip 13 for a long time. The accumulation of sweat and the large contact area will cause the skin to feel stuffy, damp or not breathable, causing discomfort or even allergic reactions, affecting the overall wearing experience.

[0100] Therefore, the contact area between the ear clip 13 and the human ear is greater than or equal to 15mm² and less than or equal to 35mm², which can effectively balance the clamping force and comfort of the earphone 100. This can avoid discomfort caused by excessive local pressure and reduce the stuffiness and lack of breathability caused by excessive contact area, providing a more comfortable and stable wearing experience.

[0101] Please see Figure 4 and Figure 5 In some embodiments, the earphone 100 further includes a circuit board 30, a communication unit 40, and a battery 50. The circuit board 30 and the battery 50 are housed in a housing cavity 102. The communication unit 40 is disposed in the sound outlet 11. The communication unit 40, the battery 50, and the speaker 20 are all electrically connected to the circuit board 30. The circuit board 30, the battery 50, and the speaker 20 are stacked sequentially in the direction from the back surface 113 of the housing 10 to the sound outlet surface 111.

[0102] The circuit board 30, battery 50, and speaker 20 are stacked sequentially from the back 113 of the housing 10 to the sound outlet 111, which saves space and allows for a reasonable layout of the components, making the headphone 100 compact overall. At the same time, the components are concentrated in the sound outlet 11, and the weight is concentrated in the part of the headphone 100 that is worn into the concha, so the ear clip 13 is less likely to slip off.

[0103] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0104] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An earphone, characterized in that, include: The housing includes a sound-emitting part and an ear clip. The sound-emitting part has a receiving cavity in which a speaker is disposed. The ear clip includes a connecting part and a hook-shaped part. The connecting part connects the sound-emitting part and the hook-shaped part. When the user wears the headphones, the sound-emitting part is configured to be at least partially located in the user's concha. The ear clip extends from the antihelix and the helix to the space between the auricle and the head. The speaker has a sound-emitting surface for sound waves to pass through. The sound-emitting part has a sound-emitting surface and a sound-emitting hole. The sound-emitting hole allows the sound emitted by the speaker to pass through to the outside of the sound-emitting part. The sound-emitting surface faces the sound-emitting surface. The ratio of the intercepting area of ​​the sound-emitting hole to the area of ​​the sound-emitting surface is greater than or equal to 0.2 and less than or equal to 0.

65.

2. The earphone according to claim 1, characterized in that, The hook-shaped part first extends away from the sound-emitting part and then bends and extends towards the sound-emitting part so that the shell forms a wearing space for accommodating the auricle of the human body.

3. The earphone according to claim 2, characterized in that, The earphone includes a first side and a second side opposite to each other in a first direction A1. The sound-emitting part is located on the first side of the earphone, and the ear clip is located on the second side of the earphone. The sound-emitting part includes a sound-emitting surface and a back side opposite to each other in a second direction A2. The sound-emitting surface is provided with the sound-emitting hole. The first direction A1 is perpendicular to the second direction A2.

4. The earphone according to claim 3, characterized in that, The hook-shaped part has a width dividing plane Pw. Within the first projection plane Pw where the width dividing plane Pw is located, the projection of the ear clip part includes an inner contour and an outer contour. The outer contour has a protrusion BP, which is the point of the ear clip part that is farthest from the sound outlet part in the first direction A1. The inner contour has a concave point CP, which is located within the wearing space.

5. The headphones according to any one of claims 1-4, characterized in that, When the user is wearing the headphones, the first distance D1 between the centroid C1 of the projection T1 of the sound outlet and the centroid C2 of the projection T2 of the sound outlet surface is less than or equal to 1 mm within the second projection plane Ps where the sagittal plane of the human body is located.

6. The earphone according to claim 5, characterized in that, The first distance D1 is any value between 0.2mm and 0.9mm; or, the first distance D1 is any value between 0.26mm and 0.8mm; or, the first distance D1 is any value between 0.3mm and 0.7mm; or, the first distance D1 is any value between 0.4mm and 0.67mm; or, the first distance D1 is any value between 0.5mm and 0.6mm.

7. The headphones according to any one of claims 1-4, characterized in that, When the user is wearing the headphones, in the second projection plane Ps where the sagittal plane of the human body is located, the ratio of the area S1 of the projection T1 of the sound outlet to the area S2 of the projection T3 of the sound outlet is greater than or equal to 0.1 and less than or equal to 0.

4.

8. The headphones according to any one of claims 1-4, characterized in that, When the user is wearing the headphones, the ratio of the area S3 of the projection T4 of the human concha to the area S2 of the projection T3 of the sound-emitting part within the second projection plane Ps of the sagittal plane of the human body is greater than or equal to 0.7 and less than or equal to 0.

95.

9. The headphones according to any one of claims 1-4, characterized in that, When the user is wearing the headphones, in the second projection plane Ps where the sagittal plane of the human body is located, the second distance D2 between the centroid C3 of the projection T3 of the sound outlet and the centroid C4 of the projection of the external auditory canal is greater than or equal to 1.5 mm and less than or equal to 11 mm.

10. The earphone according to claim 9, characterized in that, The second distance D2 is any value between 2mm and 10.8mm; or, the second distance D2 is any value between 3mm and 10mm; or, the second distance D2 is any value between 4mm and 9mm; or, the second distance D2 is any value between 5mm and 8mm; or, the second distance D2 is any value between 6mm and 7mm.

11. The headphones according to any one of claims 3-4, characterized in that, The earphone also includes a third direction A3, which is perpendicular to both the first direction A1 and the second direction A2. The ratio between the length L1 of the sound-emitting part in the first direction A1 and the length L2 of the sound-emitting part in the third direction A3 is greater than or equal to 1.3 and less than or equal to 2.

3.

12. The headphones according to any one of claims 1-4, characterized in that, When the user wears the headphones, the sound-emitting part is at least partially housed within the concha cavity of the human ear, within the second projection plane Ps of the sagittal plane of the human body. The projection of the sound-emitting part at least partially overlaps with the projection of the human auricle; and / or, The ratio between the projection of the sound-emitting part housed in the concha cavity of the human ear and the projection of the sound-emitting part is greater than or equal to 0.6 and less than or equal to 1.

13. The headphones according to any one of claims 1-4, characterized in that, When the user is wearing the headphones, within the second projection plane Ps where the sagittal plane of the human body is located, The third distance D3 between the centroid C3 of the projection T3 of the sound outlet and the centroid C5 of the projection of the ear clip is greater than or equal to 8 mm and less than or equal to 18 mm.

14. The earphone according to claim 13, characterized in that, The third distance D3 is any value between 8.5mm and 17mm; or, the third distance D3 is any value between 9mm and 15mm; or, the third distance D3 is any value between 9.5mm and 14mm; or, the third distance D3 is any value between 10mm and 13mm; or, the third distance D3 is any value between 11mm and 12mm.

15. The headphones according to any one of claims 1-4, characterized in that, When the user wears the headphones, the area of ​​the contact area between the ear clip and the human ear is greater than or equal to 15 mm² and less than or equal to 35 mm².

16. The earphone according to claim 15, characterized in that, The contact area between the ear clip and the human ear can be any value between 16mm² and 33mm²; or, the contact area between the ear clip and the human ear can be any value between 17mm² and 28mm²; or, the contact area between the ear clip and the human ear can be any value between 18mm² and 23mm²; or, the contact area between the ear clip and the human ear can be any value between 19mm² and 22mm²; or, the contact area between the ear clip and the human ear can be any value between 20mm² and 21mm².

17. The earphone according to claim 1, characterized in that, The earphone also includes a circuit board, a communication unit, and a battery. The circuit board and the battery are housed in the housing cavity. The communication unit is disposed in the sound output section. The communication unit, the battery, and the speaker are all electrically connected to the circuit board. The circuit board, the battery, and the speaker are stacked sequentially on the back of the housing in the direction from the sound output surface.

18. The earphone according to claim 17, characterized in that, The earphones also include a charging terminal, which is at least partially housed in the accommodating cavity and exposed from the housing, and the charging terminal is electrically connected to the circuit board.

19. A headphone system, characterized in that, include: The headphones according to any one of claims 1-18; and A charging case for charging the earphones.

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