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 output part and an ear clip part, the sound output part is provided with a containing cavity, the containing cavity is provided with a loudspeaker, a connecting sub-part of the ear clip part is connected between the sound output part and a hook-shaped sub-part of the ear clip part, at least part of the sound output part is located in an auricular conchae cavity of a user, and the ear clip part extends to the position between auricles and the head through an antihelix and a helix. The sound emitting surface of the sound emitting part and the outer surface of the hook-shaped sub-part are curved surfaces, and in a first projection plane where the width split of the hook-shaped sub-part is located, the tangent points of the common tangent of the projection of the sound emitting surface and the projection of the outer surface of the hook-shaped sub-part and the projection of the sound emitting surface and the projection of the outer surface of the hook-shaped sub-part are a first tangent point and a second tangent point respectively. An outer envelope line is projected on the shell, the outer envelope line comprises a first section and a second section which are connected, the first section extends to a second tangent point from a first tangent point in the first envelope direction, the second section extends to the second tangent point from the first tangent point in the second envelope direction, and the first section and the common tangent jointly define a first surface; the area of the first surface is greater than or equal to 300 mm and less than or equal to 1000 mm.

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] With the increasing popularity of headphones in daily use, the market demand for miniaturized and lightweight headphones is growing. However, in the current technology, while pursuing smaller size, headphones often struggle to achieve effective layout of internal components and address heat dissipation issues, thus limiting further improvements in headphone performance. 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 with a sound-emitting portion and an ear clip portion. The sound-emitting portion has a receiving cavity, and a speaker is disposed within the receiving cavity. The ear clip portion includes a connecting portion and a hook-shaped portion, with the connecting portion connecting between the sound-emitting portion and the hook-shaped portion. When a user wears the earphone, the sound-emitting portion is configured to be at least partially located within the user's concha, and the ear clip portion extends through the antihelix and the helix to the space between the auricle and the head. The sound-emitting part includes a sound-emitting surface and a back surface facing away from each other in the second direction A2. Both the sound-emitting surface and the outer surface of the hook-shaped sub-part are curved surfaces. The hook-shaped sub-part has a width-bisector Pw. Within the first projection plane Pw where the width-bisector Pw is located, the common tangent of the projection of the sound-emitting surface and the projection of the outer surface of the hook-shaped sub-part forms a first tangent point Q1 and a second tangent point Q2 with each of the projections of the sound-emitting surface and the outer surface of the hook-shaped sub-part, respectively. The projection of the housing has an outer envelope, which includes a first... The first segment extends from the first tangent point Q1 along the first envelope direction R1 to the second tangent point Q2, and the second segment extends from the first tangent point Q1 along the second envelope direction R2 to the second tangent point Q2. The first envelope direction R1 and the second envelope direction R2 are opposite. The first segment and the common tangent line together form a first surface P1, and the second segment and the common tangent line together form a second surface P2. The area S1 of the first surface P1 is greater than or equal to 300 mm² and less than or equal to 1000 mm².

[0005] In some embodiments, the area S1 of the first surface P1 is any value between 400 mm² and 950 mm²; or, the area S1 of the first surface P1 is any value between 480 mm² and 900 mm²; or, the area S1 of the first surface P1 is any value between 500 mm² and 800 mm²; or, the area S1 of the first surface P1 is any value between 550 mm² and 780 mm²; or, the area S1 of the first surface P1 is any value between 600 mm² and 700 mm².

[0006] 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.

[0007] 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 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.

[0008] In some embodiments, within the first projection plane Pw, 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 on the ear clip that is furthest from the sound outlet in the first direction A1. The inner contour has a concave point CP, which is located within the wearing space.

[0009] In some embodiments, the area S2 of the second surface P2 is greater than or equal to 60 mm² and less than or equal to 150 mm². The ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is greater than or equal to 0.1 and less than or equal to 0.5 mm².

[0010] In some embodiments, the area S2 of the second surface P2 is any value between 70 mm² and 140 mm²; or, the area S2 of the second surface P2 is any value between 75 mm² and 130 mm²; or, the area S2 of the second surface P2 is any value between 80 mm² and 120 mm²; or, the area S2 of the second surface P2 is any value between 90 mm² and 110 mm²; or, the area S2 of the second surface P2 is any value between 98 mm² and 100 mm².

[0011] In some embodiments, the length L1 of the earphone in the first direction A1 is greater than or equal to 15 mm and less than or equal to 30 mm.

[0012] In some embodiments, the length L1 is any value between 16mm and 29mm; or, the length L1 is any value between 17mm and 28mm; or, the length L1 is any value between 18mm and 23mm; or, the length L1 is any value between 19mm and 22mm; or, the length L1 is any value between 20mm and 21mm.

[0013] In some embodiments, the height H of the earphone in the second direction A2 is greater than or equal to 17 mm and less than or equal to 28 mm.

[0014] In some embodiments, the height H of the earphone 100 in the second direction A2 is any value between 18mm and 25mm; or, the height H of the earphone 100 in the second direction A2 is any value between 19mm and 24mm; or, the height H of the earphone 100 in the second direction A2 is any value between 20mm and 23.4mm; or, the height H of the earphone 100 in the second direction A2 is any value between 20.4mm and 23mm; or, the height H of the earphone 100 in the second direction A2 is any value between 21mm and 22mm.

[0015] In some implementations, when the user is wearing the headphones, the first included angle α1 between the width median and the cross-section of the human body is greater than or equal to 15° and less than or equal to 69°.

[0016] In some embodiments, the included angle α1 is any value between 18° and 55°; or, the included angle α1 is any value between 22° and 50°; or, the included angle α1 is any value between 25° and 45°; or, the included angle α1 is any value between 30° and 40°; or, the included angle α1 is any value between 35° and 38°.

[0017] In some embodiments, in the first direction A1, the minimum first distance D1 between the protrusion BP and the sound-emitting part is greater than or equal to 13 mm and less than or equal to 16 mm.

[0018] In some embodiments, the first distance D1 is any value between 13.2 mm and 15.8 mm; or, the first distance D1 is any value between 13.7 mm and 15.7 mm; or, the first distance D1 is any value between 14.3 mm and 15.4 mm; or, the first distance D1 is any value between 14.4 mm and 15.1 mm; or, the first distance D1 is any value between 14.8 mm.

[0019] In some embodiments, in the first direction A1, the minimum second distance D2 between the concave point CP and the sound-emitting part is greater than or equal to 8 mm and less than or equal to 12 mm.

[0020] In some embodiments, the second distance D2 is any value between 8.1 mm and 11.6 mm; or, the second distance D2 is any value between 8.2 mm and 11.1 mm; or, the second distance D2 is any value between 8.8 mm and 10.8 mm; or, the second distance D2 is any value between 9.4 mm and 10.7 mm; or, the second distance D2 is any value between 9.9 mm and 10.1 mm.

[0021] In some embodiments, the ratio of the second distance D2 to the first distance D1 is greater than or equal to 0.60 and less than or equal to 0.85.

[0022] In some embodiments, a reference line RE is used, which is a straight line parallel to the second direction A2 and passes through the vertex of the projection of the sound-emitting surface into the first projection plane Pw. When the headphones are not worn, the second included angle α2 between the tangent of the inner contour passing through the concave point CP and the reference plane P3 perpendicular to the reference line is less than or equal to 90°.

[0023] In some embodiments, the second included angle α2 is any value between 30° and 85°; or, the second included angle α2 is any value between 35° and 78°; or, the second included angle α2 is any value between 40° and 70°; or, the second included angle α2 is any value between 45° and 60°; or, the second included angle α2 is any value between 50° and 55°.

[0024] In some implementations, when the user is wearing the headphones, the second included angle α2 is greater than or equal to 40° and less than or equal to 80°.

[0025] In some embodiments, the second included angle α2 is any value between 45° and 78°; or, the second included angle α2 is any value between 50° and 75°; or, the second included angle α2 is any value between 55° and 70°; or, the second included angle α2 is any value between 58° and 68°; or, the second included angle α2 is any value between 60° and 65°.

[0026] In some implementations, in the first direction A1, the third distance D3 between the convex point BP and the reference line RE is greater than or equal to 19 mm and less than or equal to 26 mm.

[0027] In some embodiments, the third distance D3 is any value between 20mm and 25mm; or, the third distance D3 is any value between 20.4mm and 24mm; or, the third distance D3 is any value between 21.6mm and 23.8mm; or, the third distance D3 is any value between 21.8mm and 23mm; or, the third distance D3 is any value between 22mm and 22.5mm.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] In the earphone and earphone system of this application, the sound-producing 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, further securing the earphone and improving its wearing stability. The area of ​​the first surface P1 is greater than or equal to 300 mm² and less than or equal to 1000 mm², ensuring sufficient internal space for the reasonable arrangement of acoustic components and other components, thereby ensuring good acoustic performance of the earphone. In addition, the sufficient internal space provides adequate heat dissipation space, which helps maintain the stable operation of the internal components of the earphone and improves its durability. At the same time, the reasonable design of the area of ​​the first surface P1 also makes the proportions of the earphone harmonious, avoiding an overly wide or overly compact design, which brings aesthetic appeal and enhances the user's convenience in daily activities.

[0032] 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

[0033] 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:

[0034] Figure 1 This is a three-dimensional structural diagram of a headphone system according to certain embodiments of this application;

[0035] Figure 2 yes Figure 1 The diagram shows a three-dimensional structural representation of the headphones in the headphone system from one perspective.

[0036] Figure 3 yes Figure 1 The diagram shows a three-dimensional structural representation of the headphones in the headphone system from another perspective.

[0037] Figure 4 yes Figure 1 The diagram shows a three-dimensional structure of the earphones worn on the ear in the earphone system.

[0038] Figure 5 yes Figure 3 The diagram shows a partial cross-section of the earphone along its width.

[0039] Figure 6 yes Figure 3 The diagram shows the planar structure of the headphones.

[0040] Figure 7 yes Figure 3 The diagram shows the planar structure of the headphones.

[0041] Figure 8 yes Figure 3 The diagram shows a three-dimensional structure of the earphones worn on the ear.

[0042] Explanation of key component symbols:

[0043] 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

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] Please combine Figure 4The 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.

[0049] 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.

[0050] 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 the receiving cavity 102 has a speaker 20. 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 between the auricle and the head.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] As before, 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.

[0063] Please see Figures 5 to 7In some embodiments, the outer surfaces of the sound-emitting surface 111 and the hook-shaped part 133 are both curved surfaces. 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 common tangent of the projection of the sound-emitting surface 111 and the projection of the outer surface of the hook-shaped part 133 to the projection of the sound-emitting surface 111 and the projection of the outer surface of the hook-shaped part 133 are respectively the first tangent point Q1 and the second tangent point Q2. The projection of the housing 10 has an outer envelope, which includes a first segment and a second segment that are connected. The first segment extends from the first tangent point Q1 along the first envelope direction R1. Figure 6 The second segment extends from the first tangent point Q1 along the second envelope direction R2 (in the clockwise direction shown) to the second tangent point Q2. Figure 7 Extending in the counterclockwise direction shown to the second tangent point Q2, the first envelope direction R1 and the second envelope direction R2 are opposite, and the first segment and the common tangent together form the first surface P1 ( Figure 6 The shaded area), the second segment and the common tangent together form the second surface P2 ( Figure 7 (Middle shaded area).

[0064] Specifically, when the user wears the headphones 100, the sound-emitting surface 111 faces the concha cavity and is at least partially housed within it, while the back surface 113 is away from the concha cavity. The fact that the sound-emitting surface 111 is at least partially located within the concha cavity ensures that the sound emitted by the speaker 20 can be effectively transmitted to the external auditory canal. The curved surface 111 reduces direct contact pressure on the concha cavity, avoiding friction or scratches that might occur from right angles or sharp edges, resulting in smoother contact between the sound-emitting part 111 and the concha cavity, thus improving wearing comfort. The outer surface of the hook-shaped part 133 is designed to be curved, helping it adapt to the curve of the auricle. The curved hook-shaped part 133 can smoothly bypass the helix and transition to the back surface 113 of the auricle, reducing the risk of bumping the helix and further improving wearing comfort.

[0065] The size of the first surface P1 characterizes the overall size of the earphone 100, determining whether it matches the curve and shape of the ear. If the area of ​​the first surface P1 is too large or too small, it will affect the stability and comfort of the earphone 100's fit with the ear, potentially leading to unstable wearing or discomfort. When the user is wearing the earphone 100, the second surface P2 represents the size of the cross-section accommodating the auricle. The size of the second surface P2 directly affects the degree of contact between the earphone 100 and the ear during wear. If the area of ​​the second surface P2 is too large, the earphone 100 cannot fit securely with the ear and may easily slide off or fall out; if the area of ​​the second surface P2 is too small, the earphone 100 may compress the auricle, causing discomfort.

[0066] Please continue reading. Figures 5 to 7In some embodiments, the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is greater than or equal to 0.1 and less than or equal to 0.5 mm. The area S2 of the second surface P2 is any value between 70 mm² and 140 mm²; or, any value between 75 mm² and 130 mm²; or, any value between 80 mm² and 120 mm²; or, any value between 90 mm² and 110 mm²; or, any value between 98 mm² and 100 mm².

[0067] Specifically, the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 can be 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.38, 0.4, 0.45, or 0.5. Preferably, the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is 0.2.

[0068] If the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is less than 0.1, then the area S2 of the second surface P2 is too small compared to the area S1 of the first surface P1. When the user wears the earphone 100, the second surface P2 cannot fully accommodate the auricle, which may cause pressure to concentrate in local areas such as the helix and antihelix, easily causing discomfort to the user. It may also reduce the stability of the earphone 100 when worn, increasing the risk of slipping off. If the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is greater than 0.5, then the area S2 of the second surface P2 is too large, and the earphone 100 cannot be securely attached to the ear, easily slipping off or falling out. Therefore, in this embodiment, the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is greater than or equal to 0.1 and less than or equal to 0.5. This ensures that the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is within a reasonable range. When the user wears the earphone 100, the area where the second surface P2 is located can fully accommodate the auricle. It can also disperse the pressure on the auricle through an appropriate contact area, reducing pressure on the auricle. Furthermore, it can control the overall size of the earphone 100, reducing the bulkiness of the earphone 100 and making the earphone 100 more compact, thus making it more convenient for the user to wear.

[0069] Please refer to [link / reference] Figures 5 to 7 In some embodiments, the area S1 of the first surface P1 is greater than or equal to 300 mm² and less than or equal to 1000 mm².

[0070] The area S1 of the first surface P1 can be 300mm², 400mm², 500mm², 600mm², 700mm², 800mm², 900mm², 950mm², or 1000mm². Preferably, the area S1 of the first surface P1 is 480mm². The area S1 of the first surface P1 can be any value between 400mm² and 950mm²; or, the area S1 of the first surface P1 can be any value between 480mm² and 900mm²; or, the area S1 of the first surface P1 can be any value between 500mm² and 800mm²; or, the area S1 of the first surface P1 can be any value between 550mm² and 780mm²; or, the area S1 of the first surface P1 can be any value between 600mm² and 700mm².

[0071] The area S1 of the first surface P1 characterizes the size of the earphone 100. If the area S1 of the first surface P1 is less than 300 mm², the overall size of the earphone 100 is too small, which may limit the layout of components inside the housing 10. For example, the layout of core components such as the speaker 20, heat dissipation module, and battery 50 may be restricted. An insufficient area S1 of the first surface P1 may also lead to insufficient internal space in the earphone 100, causing a decrease in acoustic performance, such as insufficient low-frequency response and limited sound field. In addition, insufficient internal space in the earphone 100 will lead to limited heat dissipation space, resulting in heat accumulation and affecting the performance and lifespan of components.

[0072] If the area S1 of the first surface P1 is greater than 1000mm², it not only makes the earphone 100 appear bulky and affects its aesthetics, but may also increase the burden of wearing it. An excessively large area S1 of the first surface P1 may put greater pressure on the ears, especially during prolonged wear, potentially causing fatigue. Furthermore, an excessively large area S1 of the first surface P1 makes the earphone 100 more prone to bumping into surrounding objects during daily use, causing it to slip off and increasing the risk of it falling or being damaged.

[0073] Therefore, in this embodiment, the area S1 of the first surface P1 is greater than or equal to 300 mm² and less than or equal to 1000 mm², which ensures sufficient internal space in the housing 10 for the reasonable arrangement of acoustic components and other components, thereby ensuring that the earphone 100 has good acoustic performance. Furthermore, the sufficient internal space of the housing 10 provides adequate heat dissipation space, helping to maintain the stable operation of the internal components of the earphone 100 and improving its durability. At the same time, the reasonable design of the area S1 of the first surface P1 also ensures that the earphone 100 has a harmonious appearance proportion, avoiding designs that are too wide or too compact, thus improving its aesthetic appeal and enhancing the user's convenience in daily activities.

[0074] Please refer to [the original text]. Figures 5 to 7In some embodiments, the area S2 of the second surface P2 is greater than or equal to 60 mm² and less than or equal to 150 mm².

[0075] Specifically, the area S2 of the second surface P2 can be: 60mm², 70mm², 80mm², 90mm², 100mm², 110mm², 120mm², 130mm², 140mm², or 150mm². Preferably, the area S2 of the second surface P2 is 150mm².

[0076] Understandably, the area S2 of the second surface P2 characterizes the size of the wearing space 101. The wearing space 101, where the second surface P2 is located, is the main area where the earphone 100 accommodates the user's auricle. The surrounding structure of this area directly contacts the helix and antihelix of the auricle. Therefore, if the area S2 of the second surface P2 is less than 60 mm², the size of the wearing space 101 is too small. When the user wears the earphone 100, the wearing space 101 cannot fully accommodate the auricle, and the earphone 100 is prone to slipping or falling out, affecting the stability and reliability of the wearing experience. Furthermore, an excessively small wearing space 101 can easily cause excessive pressure from the earphone 100 on the auricle, affecting wearing comfort. When the area S2 of the second surface P2 is greater than 150 mm², the size of the wearing space 101 is too large and does not match the actual size of the human auricle. The contact force between the earphone 100 and the auricle is insufficient, resulting in a loose fit, easy slippage or falling out, thus affecting the stability and comfort of the wearing experience.

[0077] The area S2 of the second surface P2 is greater than or equal to 60mm² and less than or equal to 150mm², which helps to ensure that the earphone 100 has enough wearing space 101 to accommodate the auricle, antihelix, and other parts of the ear when worn, making the earphone 100 more secure during wearing and reducing the possibility of slipping or falling off. It also helps to ensure that the earphone 100 has a moderate pressure distribution when worn, avoiding discomfort caused by local pressure and improving the stability and comfort of wearing.

[0078] Please see Figure 7 The length L1 of the earphone 100 in the first direction A1 is greater than or equal to 15mm and less than or equal to 30mm.

[0079] Wherein, the length L1 of the earphone 100 in the first direction A1 refers to the distance between the point on the first side 103 of the housing 10 furthest from the second side 105 and the point on the second side 105 furthest from the first side 103. Specifically, the length L1 of the earphone 100 in the first direction A1 can be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, or 30mm, with a preferred value of 29mm. The length L1 can be any value between 16mm and 29mm; or, any value between 17mm and 28mm; or, any value between 18mm and 23mm; or, any value between 19mm and 22mm; or, any value between 20mm and 21mm.

[0080] If the length L1 of the earphone 100 in the first direction A1 is less than 15mm, the earphone 100 is too short. This may result in the outer contour of the earphone 100 not being able to fully accommodate the distance between the concha and the helix, causing the contact area between the earphone 100 and the ear to be too small, which may cause discomfort or instability when wearing it. In addition, the earphone 100 being too short may also result in an excessively large gap between the earphone 100 and the external auditory canal, affecting the sound transmission effect and leading to a decrease in sound quality.

[0081] If the length L1 of the earphone 100 in the first direction A1 is greater than 30mm, then the earphone 100 is too long and may exceed the natural contour of the ear, causing the outer contour of the earphone 100 to protrude excessively. An excessively long earphone 100 may result in an excessive distance from the helix to the concha, increasing the likelihood of the earphone 100 coming into contact with external objects and making it more susceptible to minor bumps or knocks, thus affecting wearing stability and comfort. Furthermore, an excessively long earphone 100 may also increase its weight and size, causing uneven pressure during wear and placing additional burden on the ear; prolonged wear may lead to discomfort or fatigue.

[0082] Therefore, in this embodiment, the length L1 of the earphone 100 in the first direction A1 is greater than or equal to 15mm and less than or equal to 30mm, which can ensure that the distance between the earphone 100 and the helix and concha is moderate when wearing it, so as not to cause excessive pressure and to provide sufficient stability. This avoids the discomfort and unstable wearing caused by the earphone 100 being too short or too long, thereby improving the wearing comfort and sound quality.

[0083] Please see Figure 7 In some embodiments, the height H of the earphone 100 in the second direction A2 is greater than or equal to 17 mm and less than or equal to 28 mm.

[0084] The height H of the earphone 100 in the second direction A2 refers to the distance between the point on the sound-emitting surface 111 of the housing 10 furthest from the back surface 113 and the point on the back surface 113 furthest from the sound-emitting surface 111. Specifically, the height H of the earphone 100 in the second direction A2 can be 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm or 28mm, with a preferred value of 19.5mm.

[0085] The height H of the earphone 100 in the second direction A2 is any value between 18mm and 25mm; or, the height H of the earphone 100 in the second direction A2 is any value between 19mm and 24mm; or, the height H of the earphone 100 in the second direction A2 is any value between 20mm and 23.4mm; or, the height H of the earphone 100 in the second direction A2 is any value between 20.4mm and 23mm; or, the height H of the earphone 100 in the second direction A2 is any value between 21mm and 22mm.

[0086] If the height H of the earphone 100 in the second direction A2 is less than 17mm, the size of the earphone 100 in the second direction A2 may be smaller than the distance between the concha cavity and the helix on the coronal plane, making it difficult for the sound output part 11 to be partially inserted into the concha cavity.

[0087] If the height H of the earphone 100 in the second direction A2 is greater than 28mm, the size of the sound output part 11 of the earphone 100 in the second direction A2 is too large, which is likely to protrude from the ear contour, causing the outer contour of the earphone 100 to be inconsistent with the helix of the ear, affecting the stability of wearing. At the same time, the earphone 100 with an excessively large size of the sound output part 11 in the second direction A2 is also more likely to collide or bump with external objects. Especially during sports or daily activities, the earphone 100 is more susceptible to interference from external forces, which may cause the earphone 100 to loosen or fall off, further affecting the stability and safety of wearing.

[0088] The height H of the earphone 100 in the second direction A2 is greater than or equal to 17mm and less than or equal to 28mm, which ensures that the distance between the earphone 100 and the ear canal is moderate. This ensures good sound propagation while maintaining wearing stability and comfort. It avoids the instability caused by too small a height H and the external impact caused by too large a height H, thus improving the secure fit of the earphone 100.

[0089] Please see Figure 7 In some embodiments, in the first direction A1, the minimum first distance D1 between the protrusion BP and the sound output portion 11 is greater than or equal to 13 mm and less than or equal to 16 mm.

[0090] Specifically, the value of the first distance D1 can be 13mm, 13.1mm, 13.2mm, 13.3mm, 13.4mm, 13.5mm, 13.6mm, 13.7mm, 13.8mm, 14mm, or 16mm, preferably 14.7mm. The first distance D1 can be any value between 13.2mm and 15.8mm; or, the first distance D1 can be any value between 13.7mm and 15.7mm; or, the first distance D1 can be any value between 14.3mm and 15.4mm; or, the first distance D1 can be any value between 14.4mm and 15.1mm; or, the first distance D1 can be any value between 14.8mm.

[0091] If the first distance D1 is less than 13mm, the distance between the protrusion BP and the sound output part 11 is too close, and the outer contour of the ear clip 13 is too close to the sound output part 11. This may result in excessive clamping force between the ear clip 13 and the ear during wearing, thus compressing the auricle and causing discomfort. Simultaneously, an excessively small distance between the protrusion BP and the sound output part 11 may result in an unsatisfactory docking angle between the sound output part 11 and the external auditory canal, affecting the sound propagation path and effect, leading to a decline in sound quality. An overly compact design of the earphone 100 may also negatively impact its structure and lifespan, especially during prolonged wear, potentially causing damage due to excessive deformation.

[0092] If the first distance D1 is greater than 16mm, the distance between the ear clip 13 and the sound output part 11 is too large, resulting in insufficient contact between the ear clip 13 and the ear during wear. This can cause the earphone 100 to slip or loosen during wear, affecting stability and comfort. An excessively large distance between the ear clip 13 and the sound output part 11 may also result in an unsuitable angle between the sound output part 11 and the external auditory canal, causing a longer sound propagation path before entering the external auditory canal. This can lead to sound attenuation and distortion, especially in the low-frequency range, resulting in a less clear and full sound.

[0093] Therefore, designing the first distance D1 between 13mm and 16mm ensures that the contact force between the ear clip 13 and the ear is moderate, neither pressing too hard on the ear and affecting comfort, nor compromising wearing stability. In addition, the moderate distance helps to ensure the ideal docking angle between the sound output part 11 and the external auditory canal, allowing sound to propagate smoothly and thus providing a clearer, richer, and more natural sound quality experience.

[0094] Please see Figure 4 and Figure 8 In some implementations, when the user is wearing headphones 100, the first included angle α1 between the width median plane Pw and the cross-section of the human body is greater than or equal to 15° and less than or equal to 69°.

[0095] Specifically, the first included angle α1 between the width dividing plane Pw and the cross-section of the human body can be 15°, 18°, 22°, 25°, 30°, 35°, 40°, 45°, 50°, or 69°. Preferably, the included angle α1 is 22°. The included angle α1 can be any value between 18° and 55°; or, the included angle α1 can be any value between 22° and 50°; or, the included angle α1 can be any value between 25° and 45°; or, the included angle α1 can be any value between 30° and 40°; or, the included angle α1 can be any value between 35° and 38°.

[0096] The helix has a curved structure, gradually converging from the external auditory canal to the earlobe. If the first angle α1 between the width median plane Pw and the cross-section of the human body is less than 15°, the earphone 100 will tend to slide towards the earlobe during wear, making it impossible to secure and potentially causing it to fall off. This will affect the wearer's comfort and the sound quality output of the earphone 100. If the first angle α1 between the width median plane Pw and the cross-section of the human body exceeds 69°, the sound output part 11 of the earphone 100 will have an excessively large tilt angle, causing the earphone 100 to exert excessive pressure on the concha and helix during wear, resulting in ear discomfort and pressure, affecting wearing comfort and potentially limiting the stability of the earphone 100, leading to discomfort or ear fatigue for the wearer.

[0097] The first included angle α1 between the width split plane Pw and the cross-section of the human body is greater than or equal to 15° and less than or equal to 69°, which enables the earphone 100 to form an appropriate contact angle with the auricle. This ensures that the earphone 100 is firmly fixed to the ear and avoids discomfort caused by pressure on the ear, providing a more comfortable and stable wearing experience.

[0098] Please see Figure 7 In some embodiments, in the first direction A1, the minimum second distance D2 between the concave point CP and the sound-emitting part 11 is greater than or equal to 8 mm and less than or equal to 12 mm.

[0099] Specifically, the value of the second distance D2 can be 8mm, 8.1mm, 8.2mm, 8.3mm, 8.4mm, 8.5mm, 8.6mm, 8.7mm, 8.8mm, or 12mm, preferably 11mm. The second distance D2 can be any value between 8.1mm and 11.6mm; or, the second distance D2 can be any value between 8.2mm and 11.1mm; or, the second distance D2 can be any value between 8.8mm and 10.8mm; or, the second distance D2 can be any value between 9.4mm and 10.7mm; or, the second distance D2 can be any value between 9.9mm and 10.1mm.

[0100] If the second distance D2 is less than 8mm, the distance between the concave point CP and the sound outlet 11 is too small, causing the distance from the concha to the helix of the earphone 100 to be compressed. When wearing it, the concave point CP may press on the helix area, causing discomfort and excessive pressure on the auricle, affecting the wearing comfort. At the same time, because the wearing space 101 is too narrow, the fixation of the earphone 100 may be poor, which may easily lead to the earphone 100 being worn unstablely.

[0101] If the second distance D2 is greater than 12mm, the distance between the concave point CP and the sound output part 11 is too large. When the user wears the earphone 100, the ear clip part 13 protrudes too much from the ear helix, causing the earphone 100 to protrude from the ear contour when worn. This increases the risk of the earphone 100 coming into contact with or colliding with external objects. The earphone 100 is more susceptible to interference from external forces, causing the position to shift or even fall off.

[0102] If the second distance D2 between the concave point CP and the sound output part 11 is greater than or equal to 8mm and less than or equal to 12mm, then the distance between the concave point CP and the sound output part 11 is moderate, which will not put too much pressure on the helix area, improve the wearing comfort, and also ensure that the earphone 100 can be firmly fixed in the ear, reducing the risk of the earphone 100 falling off due to external touch or collision.

[0103] Please see Figure 7 In some embodiments, the ratio of the second distance D2 to the first distance D1 is greater than or equal to 0.60 and less than or equal to 0.85.

[0104] Specifically, the ratio of the second distance D2 to the first distance D1 can be 0.60, 0.65, 0.69, 0.70, 0.75, 0.80, 0.81, 0.83, or 0.85. Preferably, the ratio is 0.75.

[0105] If the ratio of the second distance D2 to the first distance D1 is less than 0.60, it indicates that the distance between the concave point CP and the sound-emitting part 11 is relatively small. This may result in the outer contour of the ear clip 13 being too tight, which could cause the earphone 100 to exert greater pressure on the auricle when worn, leading to discomfort, increased pressure on the auricle, and affecting wearing comfort. In addition, because the distance between the concave point CP and the sound-emitting part 11 is too small, the stability of the earphone 100 may deteriorate when worn, making it difficult to securely fix the earphone 100 to the ear, resulting in unstable wearing and even affecting the durability of wearing.

[0106] If the ratio of the second distance D2 to the first distance D1 is greater than 0.85, the distance between the concave point CP and the sound output part 11 is too large. This may cause the outer contour of the ear clip 13 to be too loose, lacking support for the ear and reducing wearing stability. During wear, the earphone 100 may easily slip due to insufficient contact force, resulting in loose contact between the earphone 100 and the helix, and a poor wearing experience. More importantly, an excessively large distance between the concave point CP and the sound output part 11 may cause the outer contour of the earphone 100 to protrude, increasing the probability of contact with external objects, making it more susceptible to collisions or bumps, thus affecting the stability and safety of the earphone 100, and even causing the earphone 100 to fall off.

[0107] Therefore, the ratio of the second distance D2 to the first distance D1 should be greater than or equal to 0.60 and less than or equal to 0.85. This ensures the appropriate compactness and support of the outer contour of the earphone 100, thereby achieving a comfortable and stable wearing effect. This reasonable configuration within the ratio range not only avoids discomfort and instability caused by the earphone 100 being too tight or too loose, but also ensures that the earphone 100 is more secure when worn, reduces external interference, and improves wearing comfort and safety.

[0108] Please see Figure 7 In some embodiments, a reference line RE is used, which is a straight line parallel to the second direction A2 and passes through the vertex of the projection of the sound-emitting surface 111 into the first projection plane Pw. When the earphone 100 is not worn, the second included angle α2 between the tangent of the inner contour passing through the concave point CP and the reference plane P3 perpendicular to the reference line is less than or equal to 90°.

[0109] Specifically, the second included angle α2 is the included angle when the user is not wearing headphones 100°. The second included angle α2 can be 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, or 90°, with a preferred value of 50°. The second included angle α2 can be any value between 30° and 85°; or, the second included angle α2 can be any value between 35° and 78°; or, the second included angle α2 can be any value between 40° and 70°; or, the second included angle α2 can be any value between 45° and 60°; or, the second included angle α2 can be any value between 50° and 55°.

[0110] In some embodiments, the second included angle α2 is less than 90° (preferably 50°). If the second included angle α2 is greater than 90°, the wearing space 101 is too large, resulting in insufficient clamping force of the earphone 100, reducing the contact area between the earphone 100 and the ear, leading to poor fixation of the earphone 100 and making it easy to slip or fall off during wear. This is because a larger second included angle α2 causes the design of the earphone 100 to be biased towards the outer side of the auricle, reducing the contact area between the earphone 100 and the ear, thus making it impossible for the earphone 100 to firmly rely on the helix and auricle for stability during wear, affecting the stability and comfort of wearing. If the second included angle α2 is too small, the wearing space 101 is reduced, and the earphone 100 will tightly compress the helix and auricle, increasing local pressure and causing discomfort, especially during long-term wear, which may cause pressure on the helix and ear discomfort, and in severe cases, even ear pain. In addition, if the wearing space 101 is too small, the design of the headphones 100 will not be able to adapt to different ear shapes and structures, affecting the flexibility of wearing and limiting the natural adaptability of the headphones 100 to the ear.

[0111] Therefore, the second angle α2 is less than 90°, and preferably 50°, which can effectively balance the size of the wearing space 101, ensuring that the earphone 100 provides sufficient clamping force to prevent it from falling off during wear, while also avoiding excessive pressure concentrated on the auricle, which could lead to discomfort. By rationally designing the second angle α2, the earphone 100 can fit properly against the auricle during wear and form a stable contact with the ear, making the wearing experience more comfortable and secure, reducing the unpleasant experience caused by insufficient clamping force or excessive pressure, and improving the comfort and stability of wearing.

[0112] Please see Figure 7 In some implementations, when the user is wearing headphones 100, the second included angle α2 is greater than or equal to 40° and less than or equal to 80°.

[0113] Specifically, when the user is wearing headphones 100, the second included angle α2 can be 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 78°, or 80°, with a preferred value of 60°. The second included angle α2 can be any value between 45° and 78°; or, the second included angle α2 can be any value between 50° and 75°; or, the second included angle α2 can be any value between 55° and 70°; or, the second included angle α2 can be any value between 58° and 68°; or, the second included angle α2 can be any value between 60° and 65°.

[0114] If the second included angle α2 is less than 40°, the wearing space 101 is too tight. An excessively small wearing space 101 will increase the pressure on the auricle and concave point CP, causing discomfort or pressure, and weakening the wearing comfort and the tolerance of wearing for a long time.

[0115] If the second included angle α2 is greater than 80°, the wearing space 101 will be too large, causing the earphone 100 to protrude relatively beyond the ear's contour, making it more likely to come into contact with or collide with external objects. An excessively large wearing space 101 will also reduce the contact area between the earphone 100 and the ear, thereby reducing the stability of the earphone 100, leading to an insecure fit and increasing the risk of it falling out.

[0116] The second included angle α2 is greater than or equal to 40° and less than or equal to 80°, providing adequate wearing space 101 when the user wears the headphones 100. This space accommodates the helix and antihelix while avoiding an overly cramped or excessively large design. A suitably sized second included angle α2 ensures the secure fit and stability of the headphones 100, reducing the risk of displacement during wear. Simultaneously, the well-designed wearing space 101 prevents the headphones 100 from protruding, reducing the probability of contact with external objects, minimizing the risk of bumps and knocks, and ensuring wearing comfort and safety. This ultimately improves the user's wearing experience and the practicality of the headphones 100.

[0117] Please see Figure 7 In some embodiments, in the first direction A1, the third distance D3 between the protrusion BP and the reference line RE is greater than or equal to 19 mm and less than or equal to 26 mm.

[0118] Specifically, the third distance D3 can be 19mm, 20mm, 20.4mm, 21.6mm, 21.8mm, 22mm, 22.5mm, 23mm, 24mm, 25mm, or 26mm, with a preferred value of 22.6mm. The third distance D3 can be any value between 20mm and 25mm; or, the third distance D3 can be any value between 20.4mm and 24mm; or, the third distance D3 can be any value between 21.6mm and 23.8mm; or, the third distance D3 can be any value between 21.8mm and 23mm; or, the third distance D3 can be any value between 22mm and 22.5mm.

[0119] If the third distance D3 is less than 19mm, the third distance D3 between the convex point BP and the reference line RE is too small. The earphone 100 may not be able to fully adapt to the distance between the concha and the helix on the coronal plane, making it difficult or unstable to wear the earphone 100. The sound output part 11 will have difficulty extending into the concha, thus affecting the stability of the fit.

[0120] If the third distance D3 is greater than 26mm, then the third distance D3 between the protrusion BP and the reference line RE is too large. The hook-shaped part 133 where the protrusion BP is located is likely to be too far away from the helix. When wearing the earphone 100, it is easy to collide or rub against external objects, affecting the stability of the wearing.

[0121] The third distance D3 is greater than or equal to 19mm and less than or equal to 26mm, ensuring that the earphone 100 has sufficient wearing space 101 between the concha and the helix, which can avoid the risk of wearing discomfort and external collision, improve the comfort and stability of the earphone 100, and make it remain secure and comfortable during long-term wear.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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 provided. 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 cavity. The ear clip extends through the antihelix and the helix to the space between the auricle and the head. The sound-emitting part includes a sound-emitting surface and a back surface facing away from each other in the second direction A2. Both the sound-emitting surface and the outer surface of the hook-shaped sub-part are curved surfaces. The hook-shaped sub-part has a width-bisector Pw. Within the first projection plane Pw where the width-bisector Pw is located, the common tangent of the projection of the sound-emitting surface and the projection of the outer surface of the hook-shaped sub-part forms a first tangent point Q1 and a second tangent point Q2 with each of the projections of the sound-emitting surface and the outer surface of the hook-shaped sub-part, respectively. The projection of the housing has an outer envelope, which includes a first... The first segment extends from the first tangent point Q1 along the first envelope direction R1 to the second tangent point Q2, and the second segment extends from the first tangent point Q1 along the second envelope direction R2 to the second tangent point Q2. The first envelope direction R1 and the second envelope direction R2 are opposite. The first segment and the common tangent line together form a first surface P1, and the second segment and the common tangent line together form a second surface P2. The area S1 of the first surface P1 is greater than or equal to 300 mm² and less than or equal to 1000 mm².

2. The earphone according to claim 1, characterized in that, The area S1 of the first surface P1 is any value between 400mm² and 950mm²; or, the area S1 of the first surface P1 is any value between 480mm² and 900mm²; or, the area S1 of the first surface P1 is any value between 500mm² and 800mm²; or, the area S1 of the first surface P1 is any value between 550mm² and 780mm²; or, the area S1 of the first surface P1 is any value between 600mm² and 700mm².

3. 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.

4. The earphone according to claim 3, 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 surface is provided with a sound-emitting hole, which is used to allow the sound emitted by the speaker to pass out of the sound-emitting part. The first direction A1 is perpendicular to the second direction A2.

5. The earphone according to claim 4, characterized in that, Within the first projection plane Pw, 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 on the ear clip that is furthest from the sound outlet in the first direction A1. The inner contour has a concave point CP, which is located within the wearing space.

6. The headphones according to any one of claims 1-5, characterized in that, The area S2 of the second surface P2 is greater than or equal to 60 mm² and less than or equal to 150 mm²; the ratio of the area S2 of the second surface P2 to the area S1 of the first surface P1 is greater than or equal to 0.1 and less than or equal to 0.5 mm.

7. The earphone according to claim 6, characterized in that, The area S2 of the second surface P2 is any value between 70mm² and 140mm²; or, the area S2 of the second surface P2 is any value between 75mm² and 130mm²; or, the area S2 of the second surface P2 is any value between 80mm² and 120mm²; or, the area S2 of the second surface P2 is any value between 90mm² and 110mm²; or, the area S2 of the second surface P2 is any value between 98mm² and 100mm².

8. The earphone according to claim 6, characterized in that, The length L1 of the earphone in the first direction A1 is greater than or equal to 15mm and less than or equal to 30mm.

9. The earphone according to claim 8, characterized in that, The length L1 is any value between 16mm and 29mm; or, the length L1 is any value between 17mm and 28mm; or, the length L1 is any value between 18mm and 23mm; or, the length L1 is any value between 19mm and 22mm; or, the length L1 is any value between 20mm and 21mm.

10. The headphones according to claim 4 or 5, characterized in that, The height H of the earphone in the second direction A2 is greater than or equal to 17mm and less than or equal to 28mm.

11. The earphone according to claim 10, characterized in that, The height H of the earphone 100 in the second direction A2 is any value between 18mm and 25mm; or, the height H of the earphone 100 in the second direction A2 is any value between 19mm and 24mm; or, the height H of the earphone 100 in the second direction A2 is any value between 20mm and 23.4mm; or, the height H of the earphone 100 in the second direction A2 is any value between 20.4mm and 23mm; or, the height H of the earphone 100 in the second direction A2 is any value between 21mm and 22mm.

12. The earphone according to claim 5, characterized in that, When the user is wearing the headphones, the first included angle α1 between the width median Pw and the cross-section of the human body is greater than or equal to 15° and less than or equal to 69°.

13. The earphone according to claim 12, characterized in that, The included angle α1 is any value between 18° and 55°; or, the included angle α1 is any value between 22° and 50°; or, the included angle α1 is any value between 25° and 45°; or, the included angle α1 is any value between 30° and 40°; or, the included angle α1 is any value between 35° and 38°.

14. The earphone according to claim 13, characterized in that, In the first direction A1, the minimum first distance D1 between the protrusion BP and the sound-emitting part is greater than or equal to 13mm and less than or equal to 16mm.

15. The earphone according to claim 14, characterized in that, The first distance D1 is any value between 13.2mm and 15.8mm; or, the first distance D1 is any value between 13.7mm and 15.7mm; or, the first distance D1 is any value between 14.3mm and 15.4mm; or, the first distance D1 is any value between 14.4mm and 15.1mm; or, the first distance D1 is any value between 14.8mm.

16. The earphone according to claim 15, characterized in that, In the first direction A1, the minimum second distance D2 between the concave point CP and the sound-emitting part is greater than or equal to 8 mm and less than or equal to 12 mm.

17. The earphone according to claim 16, characterized in that, The second distance D2 is any value between 8.1mm and 11.6mm; or, the second distance D2 is any value between 8.2mm and 11.1mm; or, the second distance D2 is any value between 8.8mm and 10.8mm; or, the second distance D2 is any value between 9.4mm and 10.7mm; or, the second distance D2 is any value between 9.9mm and 10.1mm.

18. The headphones according to claim 16, characterized in that, The ratio of the second distance D2 to the first distance D1 is greater than or equal to 0.60 and less than or equal to 0.

85.

19. The earphone according to claim 5, characterized in that, Using the straight line parallel to the second direction A2 and passing through the vertex of the projection of the sound-emitting surface into the first projection plane Pw as the reference line RE, when the headphones are not worn, the second included angle α2 between the tangent of the inner contour passing through the concave point CP and the reference plane P3 perpendicular to the reference line is less than or equal to 90°.

20. The earphone according to claim 19, characterized in that, The second included angle α2 is any value between 30° and 85°; or, the second included angle α2 is any value between 35° and 78°; or, the second included angle α2 is any value between 40° and 70°; or, the second included angle α2 is any value between 45° and 60°; or, the second included angle α2 is any value between 50° and 55°.

21. The earphone according to claim 19, characterized in that, When the user is wearing the headphones, the second included angle α2 is greater than or equal to 40° and less than or equal to 80°.

22. The earphone according to claim 21, characterized in that, The second included angle α2 is any value between 45° and 78°; or, the second included angle α2 is any value between 50° and 75°; or, the second included angle α2 is any value between 55° and 70°; or, the second included angle α2 is any value between 58° and 68°; or, the second included angle α2 is any value between 60° and 65°.

23. The headphones according to claim 19, characterized in that, In the first direction A1, the third distance D3 between the convex point BP and the reference line RE is greater than or equal to 19 mm and less than or equal to 26 mm.

24. The headphones according to claim 23, characterized in that, The third distance D3 is any value between 20mm and 25mm; or, the third distance D3 is any value between 20.4mm and 24mm; or, the third distance D3 is any value between 21.6mm and 23.8mm; or, the third distance D3 is any value between 21.8mm and 23mm; or, the third distance D3 is any value between 22mm and 22.5mm.

25. 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.

26. The earphone according to claim 25, 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.

27. A headphone system, characterized in that, include: The headphones according to any one of claims 1-26; and A charging case for charging the earphones.

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