Earphone

Abstract

The present application discloses an earphone, comprising: a main body portion comprising a sound production section and an extension section. One end of the extension section is connected to the sound production section, the other end of the extension section is bent towards a bent portion and is in transition connection with the bent portion, and in a wearing state, the extension section and the upper edge of an ear form a first contact position; in the wearing state, a connecting portion is located between the rear side of the ear and the head, and bends and extends from the upper side of the ear to the lower side of the ear; in the wearing state, the bent portion and the rear side of the ear form a second contact position; the first contact position and the second contact position undergo mechanical abstraction to obtain a first contact point and a second contact point to serve as mechanical action points of the ear on the first contact position and the second contact position, and compared with a natural state, in the wearing state, the linear distance between the projections of the first contact position and of the second contact position on a first reference plane parallel to a sagittal plane of a human body remains unchanged. Compared with the prior art, the present application improves the wearing comfort.

Description

A headset

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 30, 2023, with application number 202310794694X and application name “A Headphones”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of consumer electronic products, and in particular to a headset. Background Art

[0003] With the development of society, the application scope of headphones is becoming wider and wider, and they are widely used in office environments and anywhere for listening to music or entertainment.

[0004] Most of the current open-back headphones use the clamping force generated by the elastic deformation of the headphones themselves to achieve wearing. This wearing method will cause pressure and deformation on the ears, which can easily cause pain. This wearing method is not very comfortable.

[0005] Summary of the Invention

[0006] The main purpose of this application is to propose a headset that aims to improve the wearing comfort of the headset and enhance the user experience.

[0007] To achieve the above-mentioned object, the present application provides an earphone, comprising: a main body, a connecting portion, and a bending portion;

[0008] The main body includes a sound-generating section and an extension section, one end of the extension section is connected to the sound-generating section, and the other end of the extension section is bent toward and transitionally connected to the curved section; one end of the sound-generating section is connected to the extension section, and the other end of the sound-generating section is a second free end; in the worn state, the extension section bends and extends from the front side of the ear portion through the upper edge of the ear portion to the back side of the ear portion, forming a first contact position with the upper edge of the ear portion;

[0009] The connecting portion is used to connect the main body and the curved portion. When worn, the connecting portion is located between the back of the ear and the head, and extends from top to bottom along the back of the ear.

[0010] The curved portion has one end connected to the connecting portion and the other end being a first free end. When in a worn state, the curved portion extends downward along the contour of the back side of the ear and forms at least one second contact position with the back side of the ear or the head.

[0011] Performing mechanical abstraction on the first contact position and the second contact position to obtain a first contact point and a second contact point, respectively, and using the first contact point and the second contact point as mechanical action points of the ear on the first contact position and the second contact position, respectively.

[0012] In the worn state relative to the natural state, the straight-line distance between the projections of the first contact point and the second contact point on the first reference plane parallel to the sagittal plane of the human body remains unchanged.

[0013] A further technical solution of the present application is that, in the worn state relative to the natural state, the straight-line distance between the projections of the first contact point and the second contact point on a second reference plane parallel to the horizontal plane of the human body remains unchanged.

[0014] A further technical solution of the present application is that, in the worn state relative to the natural state, the straight-line distance between the projections of the first contact point and the second contact point on a third reference plane parallel to the coronal plane of the human body remains unchanged.

[0015] A further technical solution of the present application is that, in the worn state relative to the natural state, the minimum distance from the first free end to the first side surface of the connecting portion close to the ear remains unchanged, the minimum distance from the first free end to the second side surface of the extension section close to the ear remains unchanged, and the minimum distance from the first end where the first side surface is connected to the curved portion to the second end where the second side surface is connected to the connecting portion remains unchanged.

[0016] A further technical solution of the present application is that the sound-emitting segment forms a third contact position with the front side of the ear, the third contact position is mechanically abstracted to obtain a third contact point, and the third contact point is used as the mechanical action point of the ear on the third contact position.

[0017] A further technical solution of the present application is that, in the worn state relative to the natural state, the straight-line distance between the projections of any two of the first contact point, the second contact point and the third contact point on the first reference plane remains unchanged.

[0018] A further technical solution of the present application is that, in the worn state relative to the natural state, the straight-line distance between the projections of any two of the first contact point, the second contact point and the third contact point on a second reference plane parallel to the horizontal plane of the human body remains unchanged.

[0019] A further technical solution of the present application is that, in the worn state relative to the natural state, the straight-line distance between the projections of any two of the first contact point, the second contact point and the third contact point on the third reference plane parallel to the coronal plane of the human body remains unchanged.

[0020] A further technical solution of the present application is that, in the worn state, relative to the natural state, the minimum distance from the second free end to the first side surface of the connecting portion close to the ear remains unchanged, the minimum distance from the second free end to the second side surface of the extension section close to the ear remains unchanged, and the minimum distance from the second free end to the first free end remains unchanged;

[0021] The minimum distance from the first free end to the first side surface of the connecting portion close to the ear remains unchanged; the minimum distance from the first free end to the second side surface of the extension section close to the ear remains unchanged.

[0022] A further technical solution of the present application is that the connecting portion is elastic, and the main body and the curved portion are both made of a hard material structure.

[0023] A further technical solution of the present application is that an elastic metal strip connecting the extension section and the bending section is provided inside the connecting portion, and the diameter of the elastic metal strip is greater than or equal to 0.8 mm.

[0024] A further technical solution of the present application is that the connecting portion is elastic, and in the worn state relative to the natural state, the shape, overlapping ratio and position of the overlapping part of the orthographic projection of the curved portion on the second reference plane parallel to the horizontal plane and the orthographic projection of the sound segment on the second reference plane remain unchanged.

[0025] A further technical solution of the present application is that the corresponding positions of the ear and the first contact point form a first supporting force F1 for the earphone, the first supporting force F1 points outward and upward, and the angle with the X direction is greater than 60° and less than 150°.

[0026] A further technical solution of the present application is that the contact position of the ear corresponding to the first contact position is located between the upper ear root and the upper apex of the helix tubercle.

[0027] A further technical solution of the present application is that the length L of the sound-generating section extends from the crus of the helix of the ear toward the antihelix.

[0028] A further technical solution of the present application is that the sound-producing section forms the third contact position with the inner wall of the concha cavity of the ear.

[0029] A further technical solution of the present application is that the sound-emitting section includes a fitting part for fitting with the concha cavity and a shell part located outside the concha cavity along the thickness direction, the third contact position is located on the fitting part, and the thickness h3 of the fitting part is 2-10 mm.

[0030] A further technical solution of the present application is that the sound-emitting section is inclined from one end connected to the extension section toward the second free end and in a direction away from the tragus of the ear, so that there is a gap d between the bottom surface of the sound-emitting section close to the tragus and the tragus, and the gap d is greater than or equal to 0.

[0031] A further technical solution of the present application is that the first contact point, the second contact point, and the third contact point form a triangle in space.

[0032] A further technical solution of the present application is that the sound-emitting section has a boss protruding toward the ear hole of the ear, and the sound hole is provided on the boss.

[0033] A further technical solution of the present application is that the distance between the first contact point and the third contact point in the coronal axis direction is 3.5-13.5 mm.

[0034] A further technical solution of the present application is that the extension section and the sound-generating section have a transition curve on the ear side of the curved transition position, and the curvature radius corresponding to the projection curve of the transition curve on the first reference plane is in the range of 1-10 mm.

[0035] A further technical solution of the present application is that the cross-sectional area of ​​the extension section gradually decreases from one end close to the sound-generating section to the other end.

[0036] A further technical solution of the present application is that the thickness h1 of the sound-emitting section is 8-20 mm.

[0037] A further technical solution of the present application is that the length ratio of the extension segment relative to the sounding segment in the sagittal axis direction is 0.2-1.

[0038] A further technical solution of the present application is that the length of the sounding segment in the sagittal axis direction ranges from 15 to 25 mm.

[0039] A further technical solution of the present application is that the length ratio of the connecting portion to the curved portion in the sagittal axis direction is less than 1.

[0040] A further technical solution of the present application is that the length of the curved portion in the sagittal axis direction is in the range of 30-45 mm.

[0041] A further technical solution of the present application is that the projection of the first side surface of the connecting portion close to the ear on the first reference plane forms a first curve, and the projection of the sound-emitting segment on the first reference plane forms a second curve. The first curve and the second curve have a spacing in the vertical axis direction, and the spacing gradually decreases from the side close to the bending portion to the side close to the extension segment.

[0042] A further technical solution of the present application is that the cross-sectional area of ​​the connecting portion gradually decreases and then gradually increases from an end close to the extending section to an end close to the curved portion.

[0043] A further technical solution of the present application is that the maximum outer diameter of the connecting portion is less than or equal to 15 mm.

[0044] A further technical solution of the present application is that the bent portion includes a transition section whose cross section gradually decreases toward the connecting portion, and a columnar contact section, and the second contact position is located on the contact section.

[0045] A further technical solution of the present application is that the ratio of the thickness h2 to the width w2 of the contact segment is less than 1.

[0046] A further technical solution of the present application is that the thickness h2 of the contact section is 5-15 mm.

[0047] A further technical solution of the present application is that the side surface of the curved portion is formed by a plurality of planes / curved surfaces connected in a smooth transition, so that the second contact position is a plane whose inclination angle matches the contour of the ear, or a curved surface whose curvature matches the contour of the ear.

[0048] A further technical solution of the present application is that the total mass M of the bending portion and the connecting portion and the total mass m of the main body satisfy that the difference between |Mm| is less than 5g.

[0049] Through the above-mentioned technical solution, the straight-line distance between the projections of the first contact point and the second contact point on the first reference plane parallel to the sagittal plane of the human body remains unchanged in the wearing state relative to the natural state, that is, no elastic deformation occurs between the first contact point and the second contact point in the first reference plane, and no clamping force caused by elastic deformation is generated on the ear in the first reference plane. When wearing the headphones, no clamping force is generated on the ear, thereby improving the wearing comfort of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0051] FIG1 is a schematic structural diagram of an ear;

[0052] FIG2 is a schematic front view of any embodiment of the headset of the present application in a wearing state;

[0053] FIG3 is a schematic top view of FIG2 ;

[0054] FIG4 is a left side schematic view of FIG2;

[0055] FIG5 is a schematic right view of FIG2;

[0056] FIG6 is a schematic front view of any embodiment of the earphone of the present application in a natural state;

[0057] FIG7 is another schematic front view of any embodiment of the earphone of the present application in a natural state;

[0058] FIG8 is a rear view schematic diagram of FIG6;

[0059] FIG9 is a schematic left view of FIG6;

[0060] FIG10 is a schematic right view of FIG6;

[0061] FIG11 is a schematic top view of FIG6 ;

[0062] FIG12 is a bottom view of FIG6;

[0063] FIG13 is a schematic diagram of any embodiment of the earphone of the present application in a natural state from another angle;

[0064] FIG14 is a schematic diagram of the internal structure of any embodiment of the earphone in the natural state of the present application.

[0065] Description of Figure Numbers:

[0066] Main body 10; connecting portion 20; bending portion 30; sound-emitting section 40; extension section 50; first contact position 60; third contact position 70; second contact position 80; second free end 90; first contact point A; second contact point B; third contact point C; first free end 100; first side surface 110; second side surface 120; first end 130; second end 140; elastic metal strip 150; boss 160; sound-emitting hole 170; transition curve 180; first curve 190; second curve 200; transition section 210; contact section 220; inclined surface 230; interlocking portion 240; shell portion 250.

[0067] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0068] To make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0069] The following first explains the wearing state involved in the article, the front, back, upper and lower sides of the ear, the human body's sagittal plane, coronal plane, horizontal plane, sagittal axis, coronal axis, horizontal axis, and the definitions of X, Y, and Z directions.

[0070] The front and back sides of the ear are defined as follows: The "front side of the ear" mentioned in this application is a concept relative to the "back side of the ear". The former refers to the side of the ear away from the head, and the latter refers to the side of the ear facing the head. The "upper edge of the ear" refers to the outer edge of the ear's helix facing upward, and the "lower edge of the ear" refers to the outer edge of the ear's helix facing downward. They are both aimed at the user's ear.

[0071] The sagittal plane, coronal plane, horizontal plane, sagittal axis, coronal axis, and horizontal axis of the human body are defined as follows: As is well known in fields such as medicine and anatomy, the three basic planes of the human body are the sagittal plane, coronal plane, and horizontal plane, as well as the three basic axes of the human body are the sagittal axis, coronal axis, and vertical axis. The sagittal plane is a plane perpendicular to the ground, taken along the anterior-posterior direction of the body, dividing the human body into left and right parts; the coronal plane is a plane perpendicular to the ground, taken along the lateral direction of the body, dividing the human body into anterior-posterior parts; and the horizontal plane is a plane parallel to the ground, taken along the lateral direction of the body, dividing the human body into upper and lower parts. Accordingly, the sagittal axis is the axis perpendicular to the coronal plane, passing through the anterior-posterior direction; the coronal axis is the axis perpendicular to the sagittal plane, passing through the lateral direction of the body; and the vertical axis is the axis perpendicular to the horizontal plane, passing through the lateral direction of the body.

[0072] The definitions of the X, Y, and Z directions are as follows: As shown in Figure 2, for the convenience of description, the X, Y, and Z directions are defined separately, the X direction is defined as being parallel to the sagittal axis and pointing to the front of the human body, the Y direction is defined as being parallel to the coronal axis and pointing to the right side of the human body (outward along the paper surface of Figure 2), and the Z direction is defined as being parallel to the vertical axis and pointing upward to the human body.

[0073] The above direction definitions are only for ease of description. In accordance with the principles of this technical solution, the X, Y, and Z directions can be defined arbitrarily, including but not limited to axial symmetry, angular symmetry, and other definitions of the above directions.

[0074] The definitions of wearing state and natural state are as follows: Based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, a simulator containing a head and its (left and right) ears can be made, such as GRASKB0065. Based on this, the "wearing state" described in this application refers to the stable wearing state after the earphones are stably worn on the ears of the aforementioned simulator (as shown in Figure 2), and the "natural state" refers to the state in which the earphones are not subjected to any external force after being removed from the ears. Of course, due to individual differences among users, the actual wearing state of the earphones may be different from the aforementioned wearing state.

[0075] The following method is used to compare the wearing state and the natural state: in the wearing state, the earphone forms corresponding first contact points A, second contact points B, and third contact points C with the ear, which are marked and then compared with the first contact points A, second contact points B, and third contact points C in the natural state after the earphone is removed. For ease of description, the circles corresponding to the first contact points A, second contact points B, and third contact points C in all the drawings of this application are only schematic representations of their approximate locations and do not indicate their actual locations.

[0076] The present application proposes an earphone. Referring to Figures 1 to 14 , the present application provides an embodiment, which includes a main body 10, a connecting portion 20, and a curved portion 30. The main body 10 includes a sound-emitting section 40 and an extension section 50. One end of the extension section 50 is connected to the sound-emitting section 40, and the other end of the extension section 50 bends toward and transitions to the curved portion 30. One end of the sound-emitting section 40 is connected to the extension section 50, and the other end of the sound-emitting section 40 is a second free end 90. When worn, the extension section 50 bends and extends from the front side of the ear through the upper edge of the ear to the back side of the ear, forming a first contact position 60 with the upper edge of the ear.

[0077] The connecting portion 20 is used to connect the main body 10 and the curved portion 30. When worn, the connecting portion 20 is located between the back of the ear and the head, extending downwardly along the back of the ear in a curved manner. The curved portion 30 is connected to the connecting portion 20 at one end and has a first free end 100 at the other end. When worn, the curved portion 30 extends downwardly along the contour of the back of the ear and forms at least one second contact point 80 with the back of the ear or the head.

[0078] A mechanical abstraction is performed on the first contact position 60 and the second contact position 80 to obtain a first contact point A and a second contact point B. The first contact point A and the second contact point B are used as the mechanical action points of the ear on the first contact position 60 and the second contact position 80, respectively. In the worn state, the linear distance between the projections of the first contact point A and the second contact point B on a first reference plane (ZX plane) parallel to the sagittal plane of the human body remains unchanged compared to the natural state.

[0079] It is worth mentioning that in this embodiment, in the wearing state relative to the natural state, the straight-line distance between the first contact point A and the second contact point B in the first reference plane remains unchanged, that is, no elastic deformation occurs between the first contact point A and the second contact point B in the first reference plane, and no clamping force caused by elastic deformation will be generated on the ear in the first reference plane, thereby improving wearing comfort.

[0080] In addition, in this state, the earphones do not need the clamping force generated by elastic deformation, but can maintain wearing stability only by relying on the supporting force of the first contact position 60 and the second contact position 80 and the corresponding friction force.

[0081] Furthermore, in the worn state, the linear distance between the projections of the first contact point A and the second contact point B on the second reference plane (YX plane) parallel to the horizontal plane of the human body remains unchanged compared to the natural state. This means that no elastic deformation occurs within the second reference plane, and thus no clamping force is generated on the ear due to elastic deformation within the second reference plane, thereby improving wearing comfort.

[0082] Furthermore, the linear distance between the projections of the first contact point A and the second contact point B on a third reference plane (ZY plane) parallel to the human body's coronal plane remains unchanged in the worn state relative to the natural state. This means that no elastic deformation occurs within the third reference plane, and thus no clamping force is generated on the ear within the third reference plane, thereby improving wearing comfort.

[0083] By way of example, in the worn state, relative to the natural state, the minimum distance between the first free end 100 and the first side surface 110 of the connecting portion 20 near the ear remains unchanged, the minimum distance between the first free end 100 and the second side surface 120 of the extension section 50 near the ear remains unchanged, and the minimum distance between the first end 130 connecting the first side surface 110 and the curved portion 30 and the second end 140 connecting the second side surface 120 and the connecting portion 20 remains unchanged. With this arrangement, relative to the natural state, no elastic deformation occurs between the curved section, connecting portion 20, and extension section 50 in the worn state. That is, the absolute spatial position of the first contact point A relative to the second contact point B remains unchanged, eliminating the clamping force on the ear caused by elastic deformation, thereby improving wearing comfort.

[0084] Continuing with Figures 2 to 14 , another embodiment provided by the present application differs from the above-described embodiments in that the sound-emitting segment 40 forms a third contact position 70 with the front side of the ear. A mechanical abstraction of the third contact position 70 yields a third contact point C, which serves as the mechanical point of application of the ear to the third contact position 70. By adding the third contact point C between the sound-emitting segment 40 and the front side of the ear, this embodiment further enhances the wearing stability of the earphone.

[0085] Furthermore, in the worn state, the linear distance between the projections of any two of the first contact point A, the second contact point B, and the third contact point C on the first reference plane remains unchanged relative to the natural state. This arrangement maintains the linear distance between any two points on the first reference plane, meaning there is no elastic deformation within the first reference plane, and thus no clamping force generated by elastic deformation on the ear, thereby improving wearing comfort.

[0086] Furthermore, in the worn state, the linear distance between the projections of any two of the first contact point A, the second contact point B, and the third contact point C on a second reference plane parallel to the horizontal plane of the human body remains unchanged relative to the natural state. This arrangement ensures that the linear distance between any two points on the second reference plane remains unchanged, meaning there is no elastic deformation within the second reference plane, and thus no clamping force generated by elastic deformation is generated on the ear, thereby improving wearing comfort.

[0087] Furthermore, in the worn state, the linear distance between the projections of any two of the first contact point A, the second contact point B, and the third contact point C on a third reference plane parallel to the human body's coronal plane remains unchanged relative to the natural state. This arrangement maintains the linear distance between any two points on the third reference plane, meaning there is no elastic deformation within the third reference plane, and thus no clamping force generated by elastic deformation on the ear, thereby improving wearing comfort.

[0088] By way of example, in the worn state, relative to the natural state, the minimum distance between the second free end 90 and the first side surface 110 of the connecting portion 20 near the ear remains unchanged, as does the minimum distance between the second free end 90 and the second side surface 120 of the extension section 50 near the ear. Furthermore, the minimum distance between the first free end 100 and the first side surface 110 of the connecting portion 20 near the ear remains unchanged, as does the minimum distance between the first free end 100 and the second side surface 120 of the extension section 50 near the ear. With this arrangement, the spatial position of the first free end 100 relative to the second free end 90 remains unchanged, preventing elastic deformation of the earphone components, such as the sound-emitting section 40, the connecting portion 20, the curved portion 30, and the extension section 50. Consequently, the earphone exhibits no elastic deformation. Specifically, the absolute position between any two of the first, second, and third contact points C remains unchanged, preventing elastically deformed clamping forces on the ear and improving wearing comfort.

[0089] Furthermore, the first contact point A, the second contact point B, and the third contact point C form a triangle in space. This arrangement makes the earphone more stable and reliable to wear.

[0090] Furthermore, the distance between the first contact point A and the third contact point C along the coronal axis is 3.5-13.5 mm. Within this distance range, it can accommodate the ear thickness of most users, preventing compression along the ear thickness direction while providing stable support. In a preferred embodiment, this distance can be set to 5.5 to 11.5 mm, more preferably 6.5 to 10.5 mm, and even more preferably 8.5 mm.

[0091] For any of the above embodiments, further, the connecting portion 20 is elastic, and the main portion 10 and the curved portion 30 are both constructed of a hard material. To increase the distance between the main portion 10 and the curved portion 30 during wear and facilitate the user's wearing process, the connecting portion 20 is configured to be elastic. However, after wearing, the distance between the main portion 10 and the curved portion 30 returns to a natural state, eliminating the clamping force caused by elastic deformation on the ear and maintaining wearing comfort.

[0092] The main body 10 and the curved portion 30 are made of a hard material structure, which means that the main skeleton of the main body 10 and the curved portion 30 is made of a material with relatively high rigidity, so that the overall structure is not easily deformed. The exterior of the connecting portion 20, the main body 10 and the curved portion 30 can be covered with or not covered with a flexible material (such as polycarbonate, polyamide, acrylonitrile-butadiene-styrene copolymer, silicone, etc.) as needed, or can be partially covered with or fully covered with a flexible material as needed, thereby improving wearing comfort as needed.

[0093] The above-mentioned hard material refers to a material with high rigidity that is not easily deformed under normal circumstances. Preferably, a material with an elastic modulus greater than 2.0 GPa can be selected, including but not limited to polycarbonate (PC), polyamides (PA), acrylonitrile butadiene styrene (ABS), polystyrene (PS), high impact polystyrene (HIPS), polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyurethanes (PU), polyethylene (PE), phenolic resin (PF), poly (ester sulfones) (PES), polyvinylidene chloride (PVDC), polymethyl methacrylate (PMMA), polyvinyl chloride (PVDC), polymethyl methacrylate (PMMA), polyvinyl chloride (PVDC), polyvinyl chloride (PVDC), polyvinyl acrylate (PVA ... Methacrylate, PMMA), polyetheretherketone (PEEK), etc., or a mixture of at least two thereof, or a mixture thereof with reinforcing agents such as glass fiber and carbon fiber.

[0094] As a preferred embodiment, the hard material selected is greater than 2.32 GPa and has a Poisson's ratio of about 0.390212, such as PC material.

[0095] For any of the above embodiments, illustratively, an elastic metal strip 150 is disposed within the connecting portion 20, connecting the extension section 50 and the curved portion 30. The diameter of the elastic metal strip 150 is greater than or equal to 0.8 mm. Selecting an elastic metal strip 150 within this diameter range allows for a certain degree of elasticity while maintaining a certain degree of rigidity, making it less susceptible to breakage and bending. This allows the earphones to maintain their shape when worn, reducing pressure on the ear, while also reducing the number of bends and protecting the internal flexible circuit board. As a preferred embodiment, the diameter is greater than or equal to 1 mm. To prevent the elastic metal strip 150 from being too thick and difficult to bend, this embodiment may further preferably have a diameter less than 2 mm.

[0096] In order to better protect the circuit board and prevent the circuit board from being damaged when the connecting portion 20 is bent, the elastic metal strip 150 and the flexible circuit board in the connecting portion 20 are arranged side by side and extend in the same direction.

[0097] For any of the above embodiments, further as shown in Figures 11-12, the connecting portion 20 is elastic. In the wearing state, relative to the natural state, the shape, proportion, and position of the overlapping portion of the orthographic projection of the curved portion 30 on a second reference plane parallel to the horizontal plane and the orthographic projection of the sound-emitting segment on the second reference plane remain unchanged. That is, for the present application, the overlapping portion is intended to make the shape of the earphone more compatible with the shape of the ear and increase wearing stability, rather than to generate an elastic clamping force. The elasticity of the connecting portion 20 is intended to expand the distance between the main body 10 and the curved portion 30 during wearing, thereby facilitating the user's wearing process. However, after wearing, the distance between the main body 10 and the curved portion 30 returns to its natural state, and no clamping force generated by elastic deformation is applied to the ear, thereby improving wearing comfort.

[0098] For any of the above embodiments, as exemplarily shown in Figures 6-8 , in both the worn and natural states, the orthographic projections of the main body 10 and the connecting portion 20 on the first reference plane do not overlap, and the positions and shapes of the corresponding orthographic projections of the main body 10 and the connecting portion 20 on the first reference plane remain unchanged. This arrangement prevents elastic deformation of the main body 10 and the connecting portion 20 within the first reference plane, and thus eliminates the clamping force generated by elastic deformation on the ear, thereby improving wearing comfort.

[0099] For any of the above embodiments, as exemplarily shown in Figures 6-8 , in both the worn and natural states, the orthographic projections of the main portion 10 and the curved portion 30 on the first reference plane do not overlap, and the positions and shapes of the corresponding orthographic projections of the main portion 10 and the curved portion 30 on the first reference plane remain unchanged. This arrangement prevents elastic deformation of the main portion 10 and the curved portion 30 within the first reference plane, preventing the clamping force generated by elastic deformation from being applied to the ear, thereby improving wearing comfort.

[0100] For any of the above embodiments, further, the position corresponding to the ear and the first contact point A forms a first support force F1 against the earphone. The first support force F1 points outward and upward, and the angle with the X-direction is greater than 60° and less than 150°. For any of the above embodiments, gravity is primarily overcome by the first support force F1. The first support force F1 in this direction minimizes pressure on the ear and improves wearing comfort. More preferably, as shown in Figure 2, the angle between the first support force F1 and the X-direction is 90°.

[0101] For any of the above embodiments, as further shown in FIG2 , the corresponding contact position between the ear and the first contact position 60 is located between the upper ear root and the upper apex of the helix tubercle. Because the upper ear root is sensitive and prone to discomfort, the first contact position 60 does not directly contact the upper ear root. However, if the first contact position 60 contacts the ear beyond the upper apex of the helix tubercle, the wearer will be unstable and prone to slipping. Therefore, within this contact position range, both wearing comfort and stability are achieved.

[0102] For any of the above embodiments, as further shown in FIG7 , the length L of the sound-producing section 40 extends from the crus of the helix toward the anti-helix. This direction of the sound-producing section 40 prevents it from being squeezed or collided with the ear during use, thereby improving wearing comfort.

[0103] In some embodiments, as further shown in Figures 5, 12, and 13, the sound-producing segment 40 forms a third contact point 70 with the inner wall of the cavum concha of the ear. This third contact point 70 is located within the cavum concha, providing more stable wear. Furthermore, the sound-producing segment 40 includes, along its thickness, a fitting portion 240 for fitting into the cavum concha, and a shell portion 250 located outside the cavum concha. The third contact point 70 is located on the fitting portion 240. The thickness h3 of the fitting portion 240 is 2-10 mm. Dividing the sound-producing segment 40 into the fitting portion 240 and the shell portion 250 allows for improved customization of the fitting portion 240 without affecting the placement of components within the sound-producing segment 40. Furthermore, the thickness h3 of the fitting portion 240 is within a range that better matches the depth of the cavum concha. Preferably, the thickness h3 of the fitting portion 240 is 3-9 mm, more preferably 4-8 mm. To further enhance wearing stability, the fitting portion 240 is provided with an inclined surface 230 that matches the shape of the cavum concha.

[0104] For any of the above embodiments, as further shown in FIG5 , the sound-emitting segment 40 is inclined from the end connected to the extension segment 50 toward the second free end 90, in a direction away from the tragus of the ear, such that a gap d exists between the bottom surface 40a of the sound-emitting segment 40 near the tragus and the tragus, and the gap d is greater than or equal to 0. This arrangement prevents the sound-emitting segment 40 from squeezing the tragus when worn, thereby improving wearing comfort.

[0105] For any of the above embodiments, as further shown in FIG12 , the sound-emitting section 40 has a boss 160 that protrudes toward the ear hole, and the sound hole 170 is provided on the boss 160. The boss 160 not only improves the sound quality but also can form contact with the ear during exercise, thereby further improving wearing stability.

[0106] For any of the above embodiments, exemplarily in combination with Figures 7 and 14, the specific ranges of the sounding section 40, the extension section 50, the connecting portion 20, and the bending portion 30 are as follows: the starting point of the sounding section 40 is the first end point CP1 on the rightmost side of the main body 10, and the end point of the sounding section 40 is the second end point CP2 on the leftmost side of the sounding section 40; the starting point of the extension section 50 is the first end point CP1 on the rightmost side of the main body 10, and the end point of the extension section 50 is the third end point CP3 on the leftmost side of the end where the main body 10 is connected to the elastic metal strip 150; the starting point of the connecting portion 20 is the third end point CP3 on the leftmost side where the main body 10 is connected to the elastic metal strip 150, and the end point of the connecting portion 20 is the fourth end point CP4 on the uppermost side where the bending portion 30 is connected to the elastic metal strip 150; the starting point of the bending portion 30 is the fourth end point CP4 on the uppermost side where the bending portion 30 is connected to the elastic metal strip 150, and the end point of the bending portion 30 is the fifth end point CP5 on the lowermost side of the bending portion 30. The numerical ranges of the following parts are based on this defined range.

[0107] As further shown in Figures 7 and 14, the extension section 50 and the sound-emitting section 40 have a transition curve 180 on the side facing the ear at the curved transition position, and the projection curve of the transition curve 180 on the first reference plane corresponds to a curvature radius in the range of 1-10 mm. Within this curvature radius range, it can accommodate the ears of most users, prevent squeezing of the ears, and maintain good wearing stability. Exemplarily, the starting point of the transition curve 180 is the first intersection CP6 of the reverse extension line of the third endpoint CP3 in the Z direction and the side of the extension section 50 close to the ear, and the end point of the transition curve 180 is the second intersection CP7 of the reverse extension line of the first endpoint CP1 in the X direction and the side of the extension section 50 close to the ear. Preferably, the range of the curvature radius is 2-8 mm, and more preferably, the range of the curvature radius is 3-7 mm.

[0108] As shown in Figures 7 and 14 , the cross-sectional area of ​​the extension section 50 gradually decreases from one end near the sound-generating section 40 to the other end. This shape of the extension section 50 accommodates the gap between the ear and the head, preventing ear compression during wear. Furthermore, the thickness h1 of the sound-generating section 40 is 8-20 mm, preferably 9-18 mm, and even more preferably 10-16 mm.

[0109] Exemplarily as shown in Figures 7 and 14, the length ratio of the extension section 50 relative to the sounding section 40 in the sagittal axis direction is 0.2-1. The length of the extension section 50 is controlled within this range to prevent the bending position between the sounding section 40 and the extension section 50 from being too far away from the first contact position when worn, thereby affecting the wearing stability. Preferably, the length ratio of the extension section 50 relative to the sounding section 40 in the sagittal axis direction is 0.3-0.9, and more preferably, the length ratio is 0.4-0.8. Furthermore, the length range of the sounding section 40 in the sagittal axis direction is 15-25 mm, preferably 17-23 mm, and more preferably 18-22 mm.

[0110] As shown in Figures 7 and 14 , the length ratio of the connecting portion 20 to the curved portion 30 in the sagittal axis direction is less than 1. This length ratio range can increase the length of the curved portion 30, allowing the curved portion 30 to contact the user's ear to a greater extent, thereby improving wearing stability. Preferably, the length ratio of the connecting portion 20 to the curved portion 30 in the sagittal axis direction is less than 0.9, and more preferably less than 0.8. Furthermore, the length range of the curved portion 30 in the sagittal axis direction is 30-45 mm, preferably 32-43 mm, and more preferably 33-40 mm.

[0111] As shown in Figures 7 and 14 , the projection of the first side surface 110 of the connecting portion 20 near the ear on the first reference plane forms a first curve 190, and the projection of the sound-emitting segment 40 on the first reference plane forms a second curve 200. The first curve 190 and the second curve 200 are spaced apart in the vertical axis direction, with the spacing gradually decreasing from the side near the curved portion 30 to the side near the extension segment 50. This arrangement facilitates keeping the connecting portion 20 away from the ear when worn, maintaining a distance from the ear, and preventing the connecting portion 20 from directly squeezing the ear and causing discomfort. Specifically, the first curve 190 starts at the first intersection point CP6 and ends at the third intersection point CP8 of the side surface of the connecting portion near the ear, extending from the fourth endpoint CP4 along the X-direction. The second curve 200 starts at the second intersection point CP7 and ends at the second endpoint CP2.

[0112] As shown in Figures 7 and 14 , the cross-sectional area of ​​the connecting portion 20 gradually decreases and then increases from the end closest to the extension section 50 toward the end closest to the curved portion 30. This shape of the connecting portion 20 minimizes its volume, preventing pressure on the ear or head and improving wearing comfort. Furthermore, the maximum outer diameter of the connecting portion 20 is less than or equal to 15 mm, preferably less than or equal to 12 mm, and even more preferably less than or equal to 10 mm.

[0113] As shown in Figures 7 and 14 , the curved portion 30 includes a transition section 210 whose cross-section gradually decreases toward the connecting portion 20, and a cylindrical contact section 220. The second contact position 80 is located on the contact section 220. This shape minimizes the volume of the transition section 210 to prevent elastic deformation and clamping force on the ear, while expanding the volume of the contact section 220 and increasing the area of ​​the second contact position 80, thereby improving wearing comfort and stability.

[0114] As further shown in Figures 7, 13, and 14, the ratio of the thickness h2 to the width w2 of the contact segment 220 is less than 1. Within this ratio range, the flat cylindrical shape of the contact segment 220 can further expand the area of ​​the second contact position 80 and improve wearing comfort. Preferably, the ratio of the thickness h2 to the width w2 of the contact segment 220 is less than 0.9, more preferably less than 0.8. Furthermore, the thickness h2 of the contact segment 220 is 5-15 mm, preferably 6-14 mm, and even more preferably 8-13 mm.

[0115] As shown in Figures 6, 7, 13, and 14, the side surface of the curved portion 30 is formed by a plurality of planes / curved surfaces smoothly connected together, so that the second contact position 80 is a plane with an inclination angle that matches the contour of the ear, or a curved surface with a curvature that matches the contour of the ear. By splicing multiple planes / curved surfaces, the second contact position 80 for contacting the ear is a plane with an inclination angle that matches the shape of the ear, or a curved surface with a curvature that matches the shape of the ear. This changes the contact between the contact segment 220 and the user's ear from traditional point contact or line contact to surface contact, expanding the surface area in contact with the ear, reducing the sense of pressure on the ear, and improving user comfort.

[0116] As shown in Figures 7 and 14 , the difference between the total mass M of the curved portion 30 and the total mass m of the main body 10, |Mm|, is less than 5g. This weight distribution ensures that the weight on both sides of the first contact point A is as balanced as possible, preventing the earphones from tilting when worn. Preferably, the difference between |Mm| is less than 4g, more preferably, less than 3g, and even more preferably, zero.

[0117] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A headset, characterized in that: include: A main body, a connecting portion and a bending portion; The main body includes a sound-generating section and an extension section, one end of the extension section is connected to the sound-generating section, and the other end of the extension section is bent toward the bending section and transitionally connected; One end of the sound-generating section is connected to the extension section, and the other end of the sound-generating section is a second free end; in a wearing state, the extension section bends and extends from the front side of the ear through the upper edge of the ear to the rear side of the ear, forming a first contact position with the upper edge of the ear; The connecting portion is used to connect the main body portion and the curved portion. When worn, the connecting portion is located between the rear side of the ear and the head, and extends along the rear side of the ear from top to bottom; The curved portion has one end connected to the connecting portion and the other end being a first free end. In a wearing state, the curved portion extends downward along the contour of the rear side of the ear and forms at least one second contact position with the rear side of the ear or the head; Performing mechanical abstraction on the first contact position and the second contact position to obtain a first contact point and a second contact point, respectively, and using the first contact point and the second contact point as mechanical action points of the ear on the first contact position and the second contact position, respectively. In the worn state relative to the natural state, the straight-line distance between the projections of the first contact point and the second contact point on the first reference plane parallel to the sagittal plane of the human body remains unchanged.

2. The earphone according to claim 1, characterized in that: In the worn state relative to the natural state, the straight-line distance between the projections of the first contact point and the second contact point on the second reference plane parallel to the horizontal plane of the human body remains unchanged.

3. The earphone according to claim 1, characterized in that: In the worn state relative to the natural state, the straight-line distance between the projections of the first contact point and the second contact point on the third reference plane parallel to the coronal plane of the human body remains unchanged.

4. The headset according to any one of claims 1 to 3, characterized in that: In the worn state relative to the natural state, the minimum distance from the first free end to the first side surface of the connecting portion close to the ear remains unchanged, the minimum distance from the first free end to the second side surface of the extension section close to the ear remains unchanged, and the minimum distance from the first end where the first side surface is connected to the curved portion to the second end where the second side surface is connected to the connecting portion remains unchanged.

5. The earphone according to claim 1, characterized in that: The sound-generating segment and the front side of the ear form a third contact position, and the third contact position is mechanically abstracted to obtain a third contact point, and the third contact point is used as a mechanical action point of the ear on the third contact position.

6. The earphone according to claim 5, characterized in that: In the worn state relative to the natural state, the straight-line distance between the projections of any two of the first contact point, the second contact point and the third contact point on the first reference plane remains unchanged.

7. The earphone according to claim 5, characterized in that: In the worn state relative to the natural state, the straight-line distance between the projections of any two of the first contact point, the second contact point and the third contact point on the second reference plane parallel to the horizontal plane of the human body remains unchanged.

8. The earphone according to claim 5, characterized in that: In the worn state relative to the natural state, the straight-line distance between the projections of any two of the first contact point, the second contact point and the third contact point on the third reference plane parallel to the coronal plane of the human body remains unchanged.

9. The earphone according to any one of claims 6 to 8, characterized in that: In the wearing state, relative to the natural state, the minimum distance from the second free end to the first side surface of the connecting portion close to the ear remains unchanged, the minimum distance from the second free end to the second side surface of the extension section close to the ear remains unchanged, and the minimum distance from the second free end to the first free end remains unchanged; The minimum distance from the first free end to the first side surface of the connecting portion close to the ear portion remains unchanged; the minimum distance from the first free end to the second side surface of the extension section close to the ear portion remains unchanged.

10. The earphone according to claim 1, characterized in that: The connecting portion is elastic, and the main body and the bending portion are both made of hard material.

11. The earphone according to claim 10, characterized in that: An elastic metal strip connecting the extension section and the bending section is arranged inside the connecting portion, and the diameter of the elastic metal strip is greater than or equal to 0.8 mm.

12. The earphone according to claim 1, characterized in that: The connecting portion is elastic, and in the worn state relative to the natural state, the shape, overlapping ratio and position of the overlapping part of the orthographic projection of the curved portion on a second reference plane parallel to the horizontal plane and the orthographic projection of the sound emitting segment on the second reference plane remain unchanged.

13. The earphone according to claim 1, characterized in that: The positions of the ear and the first contact point corresponding to each other form a first supporting force F1 for the earphone, and the first supporting force F1 points outwardly and upwards, and an angle with the X direction is greater than 60° and less than 150°.

14. The earphone according to claim 1, characterized in that: The contact position of the ear corresponding to the first contact position is located between the upper ear root and the upper apex of the helix tubercle.

15. The earphone according to claim 5, characterized in that: The length L of the sound-generating section extends from the helix crus of the ear toward the anti-helix.

16. The earphone according to claim 15, characterized in that: The sound-generating section and the inner wall of the concha cavity of the ear form the third contact position.

17. The earphone according to claim 16, characterized in that: The sound-generating section includes, along the thickness direction, a fitting portion 240 for fitting with the concha cavity, and a shell portion 250 located outside the concha cavity. The third contact position is located on the fitting portion 240. The thickness h3 of the fitting portion 240 is 2-10 mm.

18. The earphone according to claim 15, characterized in that: The sound-emitting section is inclined from one end connected to the extension section toward the second free end and in a direction away from the tragus of the ear, so that there is a gap d between the bottom surface of the sound-emitting section close to the tragus and the tragus, and the gap d is greater than or equal to 0.

19. The earphone according to claim 5, characterized in that: The first contact point, the second contact point, and the third contact point form a triangle in space.

20. The earphone according to claim 5, characterized in that: The sound-generating section has a boss protruding toward the ear hole of the ear, and the sound outlet is arranged on the boss.

21. The earphone according to claim 5, characterized in that: The distance between the first contact point and the third contact point in the coronal axis direction is 3.5-13.5 mm.

22. The headset according to claim 21, characterized in that: The extension section and the sound-generating section have a transition curve on the side facing the ear at the curved transition position, and the curvature radius corresponding to the projection curve of the transition curve on the first reference plane is in the range of 1-10 mm.

23. The earphone according to any one of claims 1 to 22, characterized in that: The cross-sectional area of ​​the extension section gradually decreases from one end close to the sound-generating section to the other end.

24. The headset according to claim 23, characterized in that: The thickness h1 of the sound-emitting section is 8-20 mm.

25. The headset according to any one of claims 1 to 22, characterized in that: The length ratio of the extension segment to the sound-generating segment in the sagittal axis direction is 0.2-1.

26. The earphone according to claim 25, characterized in that: The length of the sound-generating segment in the sagittal axis direction ranges from 15 to 25 mm.

27. The headset according to any one of claims 1 to 22, characterized in that: A length ratio of the connecting portion to the bending portion in the sagittal axis direction is less than 1.

28. The headset according to claim 27, characterized in that: The length of the curved portion in the sagittal axis direction ranges from 30 to 45 mm.

29. The headset according to any one of claims 1 to 22, characterized in that: The projection of the first side surface of the connecting portion close to the ear on the first reference plane forms a first curve, and the projection of the sound-emitting segment on the first reference plane forms a second curve. The first curve and the second curve have a spacing in the vertical axis direction, and the spacing gradually decreases from the side close to the bending portion to the side close to the extension segment.

30. The earphone according to any one of claims 1 to 22, characterized in that: The cross-sectional area of ​​the connecting portion gradually decreases and then gradually increases from an end close to the extending section to an end close to the bending portion.

31. The earphone according to claim 30, characterized in that: The maximum outer diameter of the connecting portion is less than or equal to 15 mm.

32. The headset according to any one of claims 1 to 22, characterized in that: The bent portion comprises a transition section with a cross section gradually reduced toward the connecting portion, and a columnar contact section, and the second contact position is located on the contact section.

33. The earphone according to claim 32, characterized in that: The ratio of the thickness h2 to the width w2 of the contact section is less than 1.

34. The earphone according to claim 33, characterized in that: The thickness h2 of the contact section is 5-15 mm.

35. The headset according to any one of claims 1 to 22, characterized in that: The side surface of the curved portion is formed by a plurality of planes / curved surfaces connected in a smooth transition, so that the second contact position is a plane whose inclination angle matches the contour of the ear, or a curved surface whose curvature matches the contour of the ear.

36. The headset according to any one of claims 1 to 22, characterized in that: The total mass M of the bending portion and the connecting portion and the total mass m of the main body satisfy that the difference between |Mm| is less than 5 g.

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