A clip-on earphone

Abstract

The present application relates to a kind of earphone, comprising: sound production part, function part and connecting part, part or all of connecting part is flexible structure of extensible extension, and flexible structure makes connecting part can be lengthened or contracted, to support earphone wear on different size ear and provide different clamping force.The earphone of implementation of the present application has the following beneficial effects: by designing the connecting part with stretchable structure, the clamping force between the sound production part and the function part is adjusted, so that the user does not have to bear excessive clamping force, and the earphone will not fall off due to too small clamping force, and the length of the connecting part can also be adjusted to adjust the wearing position, so that the sound production part is closer to the external auditory meatus, so as to receive lower sound pressure level sound, greatly improve the wearing experience and sound experience of the earphone, and it can also have smaller size.

Description

Technical Field

[0001] The present invention relates to the field of audio devices, and more particularly to an ear-clip headphone. Background Art

[0002] Many clip-on earphones are already on the market. Most of these earphones utilize a U-shaped or C-shaped structure, which deforms to create a clamping force to support the earphones on the user's ears. Due to the limited U-shaped or C-shaped structure, the length of the ear clip and the clamping force on the ear cannot be properly balanced, resulting in them falling off or excessive clamping force, creating a poor wearing experience for the user. Furthermore, due to the fixed ear clip length, for users with large concha cavum, the sound source is far away from the external auditory canal, resulting in a lower sound pressure level and a poor sound experience. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an ear-clip earphone in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is: proposing an earphone with clips on the ear, comprising: a sound-producing part, a functional part and a connecting part, part or all of the connecting part is an extendable and retractable flexible structure, and the flexible structure enables the connecting part to stretch or shrink or deform and expand to support the earphone to be worn on ears of different sizes and provide different clamping forces.

[0005] In some embodiments, the connecting portion includes: a first connecting portion, a second connecting portion, and a third connecting portion;

[0006] The first connection part is connected to the sound-producing part, the third connection part is connected to the functional part, and the second connection part connects the first connection part and the third connection part;

[0007] Part or all of the first connection part, the second connection part and the third connection part are flexible structures that can be extended and retracted.

[0008] In some embodiments, the third connection portion is a coiled flexible structure, and the third connection portion is coiled around the central axis of the functional portion.

[0009] In some embodiments, the minimum value of the farthest distance from the third connection portion to the first connection portion 210 is 22 mm-30 mm, and the maximum value of the farthest distance is 24 mm-45 mm.

[0010] In some embodiments, the length of the wound flexible structure is 1 / 5-4 / 5 of the circumference of the functional part, the length of the wound flexible structure is 5mm-25mm, the width is 2mm-10mm, and the thickness is not greater than 4.5mm.

[0011] In some embodiments, the second connecting portion of the rolled flexible structure has a length of 10 mm to 22 mm, a thickness of 4 mm to 8 mm, and a width of 6 mm to 18 mm;

[0012] The thickness ratio of the third connecting portion to the second connecting portion is 0.3-1, and the width ratio is 0.2-1.

[0013] In some embodiments, the first connecting portion has a length of 3 mm to 8 mm, a thickness of 4 mm to 8 mm, and a width of 6 mm to 18 mm;

[0014] The included angle α1 between the first connecting portion and the second connecting portion is 70°-155°;

[0015] The included angle α2 between the first connecting portion and the sound-generating portion is 150°-180°.

[0016] In some embodiments, the first connecting portion is an arc-shaped extended structure, and the first connecting portion includes one or more arc-shaped structures, and the curvature of the arc-shaped structure is no more than 240°.

[0017] In some embodiments, the third connecting portion is an arc-shaped tension spring structure, the arc of the arc-shaped tension spring structure is 120°-220°, and the inner arc diameter is no greater than 4 mm, and the outer arc diameter is no greater than 8 mm.

[0018] In some embodiments, the third connecting portion is a folding spring structure, and the folding spring structure includes but is not limited to a triangle or a trapezoid.

[0019] In some embodiments, the third connecting portion is a circular spring structure, the wire diameter of the circular spring structure is not greater than 3.5 mm, the median diameter is not greater than 12 mm, and the number of spring coils is not less than 2.

[0020] In some embodiments, the sound-emitting portion, the first connecting portion, and the second connecting structure are an integrated structure, and the third connecting portion is a soft structure.

[0021] In some embodiments, the second connecting portion has a width of 15 mm and a thickness of 7 mm, and the third connecting portion has a width of 8 mm and a thickness of 2.5 mm.

[0022] In some embodiments, the third connecting portion is a rectangular or polygonal soft structure;

[0023] The included angle α3 between the third connecting portion and the second connecting portion is not greater than 120°;

[0024] An included angle α4 between the third connecting portion and the functional portion is no greater than 90°.

[0025] In some embodiments, the sound-emitting part includes: an electroacoustic transducer, and the cavity acoustically coupled to the electroacoustic transducer includes: a first cavity and a second cavity, and the volume of the first cavity and the second cavity is not greater than 1 cm 3 .

[0026] In some embodiments, the ratio of the size of the electroacoustic transducer in the length direction of the sound-emitting part to the size in the width direction of the sound-emitting part is 1-3, the size in the length direction of the sound-emitting part is 15mm-22mm, and the size in the width direction of the sound-emitting part is 12-16mm.

[0027] In some embodiments, the first cavity includes at least one first sound outlet hole, the second cavity includes at least one second sound outlet hole, and the maximum distance from the first sound outlet hole to the edge of the sound-emitting part does not exceed 4 mm.

[0028] In some embodiments, an angle formed by a line connecting the center of the diaphragm of the electroacoustic transducer and the first sound outlet hole and a line connecting the center of the diaphragm and the second sound outlet hole is 135°-180°.

[0029] In some embodiments, the center distance between the first sound hole and the second sound hole is not less than 5 mm and not more than 15 mm;

[0030] The area of ​​the first sound hole and the second sound hole is not less than 3.7mm 2 ;

[0031] The area of ​​the first sound outlet hole is 0.5-2.3 times the area of ​​the second sound outlet hole.

[0032] In some embodiments, the invention further comprises: a bass enhancement duct, the bass enhancement duct comprising at least one third sound outlet hole;

[0033] The bass enhancement duct is connected to the second cavity and passes through the connecting portion, and is connected to the outside air through the third sound outlet hole.

[0034] In some embodiments, the distance between the first sound hole and the third sound hole is not less than 10 mm, and the cross-sectional area of ​​the third sound hole is 1 mm. 2 -5mm 2 .

[0035] The implementation of the ear-clip earphones of the present invention has the following beneficial effects: by designing a connecting part with a stretchable structure, the clamping force between the sound-emitting part and the functional part is adjusted, so that the user does not have to bear excessive clamping force, and the earphones will not fall off due to insufficient clamping force. The wearing position can also be adjusted by adjusting the length of the connecting part 200, so that the sound-emitting part is closer to the external auditory canal to receive sounds with lower sound pressure levels, which greatly improves the wearing experience and sound experience of the ear-clip earphones and can also be smaller in size. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0037] Figure 1 It is a three-dimensional structural diagram of the ear-clip earphone of the present invention;

[0038] Figure 2 1. It is a schematic structural diagram of the original state of the winding structure of the ear-clip earphone of the present invention;

[0039] Figure 3 2. It is a schematic structural diagram of the unfolded coiled structure of the ear-clip earphone of the present invention;

[0040] Figure 4 Schematic diagram of the ear clip earphone of the present invention worn at the helix and antihelix;

[0041] Figure 5 Schematic diagram of the ear-clip earphone of the present invention worn at the helix and antitragus;

[0042] Figure 6 is a schematic diagram of a first connecting portion of an arc-shaped extension structure;

[0043] Figure 7 is a schematic diagram of the third connection portion of the U-shaped structure;

[0044] Figure 8 is a schematic diagram of the third connection portion of the triangular structure;

[0045] Figure 9 is a schematic diagram of the third connecting portion of the trapezoidal structure;

[0046] Figure 10 is a schematic diagram of the third connection portion of the circular spring structure;

[0047] Figure 11 is a schematic diagram of the third connection portion of the soft structure;

[0048] Figure 12 yes Figure 11 A top view of

[0049] Figure 13 yes Figure 11 Front view of

[0050] Figure 14 yes Figure 11 Schematic diagram of polygonal software structure;

[0051] Figure 15 yes Figure 14 Schematic diagram of stretching;

[0052] Figure 16 A cross-sectional view of the earphones of the present invention when worn without earmuffs;

[0053] Figure 17 A cross-sectional view of the earphones of the present invention when worn with earmuffs;

[0054] Figure 18 is a cross-sectional view of the earphone of the present invention including a bass enhancement duct;

[0055] Figure 19 is a cross-sectional view of the earphones of the present invention including earmuffs;

[0056] Figure 20 The following are audio curves for different wearing modes.

[0057] Description of Figure Numbers:

[0058] Sound-emitting portion 100 , first cavity 110 , first sound outlet 111 , second cavity 120 , second sound outlet 121 , bass enhancement duct 122 , third sound outlet 123 , first tuning hole 130 , second tuning hole 140 , protruding structure 150 ;

[0059] Connecting portion 200, first connecting portion 210, second connecting portion 220, first sound pickup hole 221, second sound pickup hole 222, first windproof slot 223, second windproof slot 224, third connecting portion 230, first sensor 240, second sensor 250;

[0060] Functional unit 300;

[0061] In-ear earmuff 400 , third tuning hole 410 , ear cap 420 . DETAILED DESCRIPTION

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0063] The earphone of the present application comprises: a sound generating part 100 for mounting an electro-acoustic transducer and providing an acoustic cavity and sound holes for the electro-acoustic transducer to transmit sound signals outside; a functional part 300 for mounting a battery and a button switch; and a connecting part 200 for mounting a main board and a flexible circuit board and connecting the sound generating part 100 and the functional part 300, and part or all of the connecting part 200 is a flexible structure that can be extended and retracted, so that the connecting part 200 can be extended or retracted or deformed to support the earphone to be worn on ears of different sizes and provide different clamping forces.

[0064] It can be understood that, for the purpose of simplifying the structure and assembly, the battery can be mounted in the sound generating part or the connecting part, or the main board and the flexible circuit board are both mounted in the sound generating part, at this time the connecting part and the sound generating part jointly constitute the earphone structure and provide the clamping force.

[0065] Specifically, there is at least one sound hole in front of or behind the diaphragm of the electro-acoustic transducer, which is coupled with the diaphragm through the cavity, and the diaphragm vibrates to emit sound through the sound hole; the functional part 300 includes a battery and a battery board to provide power for the earphone, and the battery board is connected with the main board and the flexible circuit board of the connecting part 200; the electro-acoustic transducer is connected with the main board and the flexible circuit board of the connecting part 200, and the connection mode includes but is not limited to welding or connector connection, and the flexible circuit board can also be replaced by a wire; the internal structure of the electro-acoustic transducer, the main board and the flexible circuit board, and the wire use the prior art. The connecting part 200 connects the sound generating part 100 and the functional part 300, and in use, the sound generating part 100 is located in the concha cavity and the functional part 300 is located at the back of the auricle, and since the connecting part 200 is a flexible structure, a clamping force is formed between the sound generating part 100 and the functional part 300, so that the earphone can be worn on the user's ear. At the same time, since the connecting part 200 can be extended and retracted, the length of the connecting part 200 can be adjusted according to the size of the user's ear, and thus the clamping force between the sound generating part 100 and the functional part 300 can be adjusted, so that the user does not have to bear excessive clamping force, and the earphone will not fall off due to too small clamping force, and the length of the connecting part 200 can also be adjusted to adjust the wearing position, so that the sound generating part 100 is closer to the external auditory meatus, so as to receive lower sound pressure level sound and provide better wearing experience and sound experience for the user.

[0066] Further, as shown in Figure 1 the connecting part 200 is divided into multiple sections, including a first connecting part 210 connected with the sound generating part 100, a third connecting part 230 connected with the functional part 300, and a second connecting part 220 connecting the first connecting part 210 and the third connecting part 230. Part or all of the first connecting part 210, the second connecting part 220 and the third connecting part 230 are flexible structures that can be extended and retracted.

[0067] Further, in some embodiments, the third connecting part 230 is a coiled flexible structure. One end of the third connecting part 230 is connected to the second connecting part 220, and the other end of the third connecting part 230 is connected to the functional part 300, and the third connecting part 230 is coiled around the central axis of the functional part 300. When different users use the earphone or the user wears the earphone at different positions of the ear, the coiled flexible structure can be stretched to be longer, so that the sound production part 100 is closer to the position of the external auditory meatus.

[0068] Specifically, as shown in FIG. 8, the coiled flexible structure of the third connecting part 230 is in an original state, in which the farthest distance of the third connecting part 230 to the first connecting part 210 affects the overall size of the product. The smaller the farthest distance, the smaller the overall volume of the earphone, and the more convenient the user carries the earphone. At the same time, considering the shape and stacking of the earphone, the minimum value of the farthest distance is 22mm-30mm. Figure 2 Specifically, as shown in FIG. 8, the coiled flexible structure of the third connecting part 230 is in an original state, in which the farthest distance of the third connecting part 230 to the first connecting part 210 affects the overall size of the product. The smaller the farthest distance, the smaller the overall volume of the earphone, and the more convenient the user carries the earphone. At the same time, considering the shape and stacking of the earphone, the minimum value of the farthest distance is 22mm-30mm.

[0069] Figures 4-5 Specifically, as shown in FIG. 8, the coiled flexible structure of the third connecting part 230 is in an original state, in which the farthest distance of the third connecting part 230 to the first connecting part 210 affects the overall size of the product. The smaller the farthest distance, the smaller the overall volume of the earphone, and the more convenient the user carries the earphone. At the same time, considering the shape and stacking of the earphone, the minimum value of the farthest distance is 22mm-30mm. Figure 3 Specifically, as shown in FIG. 8, the coiled flexible structure of the third connecting part 230 is in an original state, in which the farthest distance of the third connecting part 230 to the first connecting part 210 affects the overall size of the product. The smaller the farthest distance, the smaller the overall volume of the earphone, and the more convenient the user carries the earphone. At the same time, considering the shape and stacking of the earphone, the minimum value of the farthest distance is 22mm-30mm.

[0070] Optionally, in some embodiments, the coiled shape of the third connecting part 230 includes but is not limited to a circular shape, and can also be an elliptical shape, a square shape, a polygonal shape, or an arc shape composed of multiple arcs with different radii. The length of the coiled flexible structure is 1 / 5-4 / 5 of the circumference of the functional part 300, and is 5mm-25mm.

[0071] Further, in some embodiments, in order to control the clamping force of the earphone, the third connecting part 230 includes but is not limited to a soft material such as silicone and TPE (thermoplastic elastomer), and the thickness of the third connecting part 230 is not greater than 4.5mm, and the width is 2mm-10mm.

[0072] Figure 6 ​​As shown, the first connecting part 210 is a circular arc structure, which is connected to the second connecting part 220 and the sound production part 100 respectively. When the sound production part 100 is in different positions of different users' auricles, the first connecting part 210 can be stretched to adjust the distance and the clamping force between the sound production part 100 and the functional part 300. The first connecting part 210 includes one or more arc structures, and each arc structure has an arc angle of no more than 240°.

[0073] Further, in some embodiments, the second connecting part 220 and the third connecting part 230 are physically connected by clamping and dispensing. To adapt to different users' ears and wearing methods, the length of the second connecting part 220 is 10mm-22mm, the thickness is 4mm-8mm, and the width is 6mm-18mm. The thickness ratio of the third connecting part 230 to the second connecting part 220 is 0.3-1, and the width ratio is 0.2-1.

[0074] Optionally, in some embodiments, the second connecting part 220 is made of a material harder than the third connecting part 230, including but not limited to ABS (acrylonitrile-butadiene-styrene copolymer, thermoplastic polymer structure material), PC (polycarbonate, high molecular polymer), and other hard materials, to form a cavity support structure for assembling the main board and the flexible circuit board.

[0075] Optionally, in some embodiments, the second connecting part 220 is made of the same material as the third connecting part 230, and the second connecting part 220 and the third connecting part 230 are an integral structure, and the main board and the flexible circuit board are wrapped by the integral structure. In order to prevent the main board from being damaged, an external support structure is added at the second connecting part 220, which can be made of metal or ABS, PC, and other hard materials.

[0076] Further, in some embodiments, the length of the first connecting part 210 is 3mm-8mm, the thickness is 4mm-8mm, and the width is 6mm-18mm. The part where the first connecting part 210 and the second connecting part 220 are connected forms a certain included angle α1, and the size of the included angle α1 is 70°-155°, preferably 100°. The first connecting part 210 and the second connecting part 220 include but are not limited to hinges and hinge connections to adjust the angle size at the connection, so that the sound production part 100 fits the shape of the ear better.

[0077] Further, in some embodiments, the first connecting part 210 and the sound production part 100 include but are not limited to hinges and hinge connections to adjust the included angle α2 between the first connecting part 210 and the sound production part 100, and the size of the included angle α2 is 150°-180°.

[0078] Further, in some embodiments, as shown in FIG. 6, the first connecting part 210 is connected to the second connecting part 220 by a hinge structure, and the second connecting part 220 is connected to the third connecting part 230 by a hinge structure. Figures 7-10As shown, the first connecting part 210 and the second connecting part 220 comprise but are not limited to an integral structure, and the third connecting part 230 is a tensile spring structure to realize the adjustment of the distance and the clamping force between the sound generating part 100 and the functional part 300.

[0079] Specifically, as shown in the figure, Figure 7 the first connecting part 210 and the second connecting part 220 are an integral structure, and the third connecting part 230 is composed of a plurality of arc-shaped tensile spring structures, the arc of the arc-shaped tensile structure is 120°-220°, and preferably 180°. Considering the volume of the product, the inner arc diameter of the arc-shaped tensile structure is not greater than 4mm, the outer arc diameter of the arc-shaped tensile structure is not greater than 8mm, and the outer arc diameter is greater than the inner arc diameter. The length of the arc-shaped tensile structure after stretching and flattening is not greater than 25mm. Alternatively, the sizes of the plurality of arc-shaped tensile structures are the same, or change regularly according to the order from large to small or from small to large.

[0080] Alternatively, the tensile spring structure of the third connecting part 230 comprises but is not limited to an arc-shaped structure, and can also be a U-shaped structure. The arc of the U-shaped structure is 120°-220°, and preferably 180°. Considering the volume of the product, the inner arc diameter of the U-shaped structure is not greater than 4mm, the outer arc diameter of the U-shaped structure is not greater than 8mm, and the outer arc diameter is greater than the inner arc diameter. The length of the U-shaped structure after stretching and flattening is not greater than 25mm. Alternatively, the sizes of the plurality of U-shaped structures are the same, or change regularly according to the order from large to small or from small to large.

[0081] Alternatively, as shown in the figure, Figures 8-9 the third connecting part 230 can also be a folded spring structure, and the folded structure comprises but is not limited to a triangle, and can also be a trapezoid, and the triangle and the trapezoid can be hollowed out to save material cost and reduce the weight of the product.

[0082] Specifically, the folded structure comprises a plurality of triangles or trapezoids, wherein the side length of the triangle is not greater than 8mm, the short side length of the trapezoid is not greater than 4mm, and the long side length is not greater than 8mm, and the sizes of the plurality of triangles or trapezoids are the same, or change regularly according to the order from large to small or from small to large.

[0083] Alternatively, as shown in the figure, Figure 10 the third connecting part 230 can also be a circular spring structure, and in order to meet the miniaturization of the earphone, the wire diameter of the circular spring structure is not greater than 3.5mm, the middle diameter is not greater than 12mm, and the number of spring coils is not less than 2. The sizes of the circular spring structure are the same, or change regularly according to the order from large to small or from small to large.

[0084] Further, in some embodiments, the sound production part 100, the first connecting part 210 and the second connecting part 220 are designed in an integrated structure and made of hard material. As shown in FIG. 2, the connecting angle between the first connecting part 210 and the sound production part 100 is 180°, and the connecting angle between the first connecting part 210 and the second connecting part 220 is 100°. The third connecting part 230 is made of soft material, such as silica gel or TPE. Figures 11-13 Further, in some embodiments, the third connecting part 230 intersects with the second connecting part 220, and the intersecting circular arc tangent forms an included angle of 90°-170° with the second connecting part 220. As shown in FIG. 6, the width of the second connecting part 220 is 12 mm, and the thickness is 7 mm. The width of the third connecting part 230 is 8 mm, and the thickness is 2.5 mm. The third connecting part 230 is inserted into the second connecting part 220, positioned by the clamping groove, and fixedly connected by gluing.

[0085] Further, in some embodiments, the sound production part 100, the first connecting part 210 and the second connecting part 220 are designed in an integrated structure and made of hard material. As shown in FIG. 2, the connecting angle between the first connecting part 210 and the sound production part 100 is 180°, and the connecting angle between the first connecting part 210 and the second connecting part 220 is 100°. The third connecting part 230 is made of soft material, such as silica gel or TPE. Figures 11-13

[0086] Further, in some embodiments, the sound production part 100, the first connecting part 210 and the second connecting part 220 are designed in an integrated structure and made of hard material. As shown in FIG. 2, the connecting angle between the first connecting part 210 and the sound production part 100 is 180°, and the connecting angle between the first connecting part 210 and the second connecting part 220 is 100°. The third connecting part 230 is made of soft material, such as silica gel or TPE.

[0087] Specifically, as shown in FIG. 8, the third connecting part 230 has at least two included angles (corner features), which provide the third connecting part 230 with an extension deformation structure. The included angle α3 between the third connecting part 230 and the second connecting part 220 is not greater than 120°, and the included angle α4 between the third connecting part 230 and the functional part 300 is not greater than 90°. When the surface of the functional part 300 is a curved surface, the included angle α4 between the third connecting part 230 and the curved surface circular arc tangent of the functional part 300 is not greater than 90°. Figures 14-15 ​As shown, the two angles α5 and α6 of the third connecting portion 230 are rounded, and the thickness of the angled portion is no less than the thickness of the other portions of the third connecting portion 230. When the earphone is worn on the auricle, the angles α5 and α6 are subjected to the greatest force. As the functional portion 300 rotates approximately counterclockwise with angle α5 as a reference, angle α5 increases, increasing the distance between the functional portion 300 and the sound-emitting portion 100. This creates a clamping force between the functional portion 300 and the sound-emitting portion 100, supporting the earphone in place on the auricle. Due to differences in the user's auricle, the distance between the helix and the antihelix varies, or the earphone is worn in a different position on the auricle. Angle α6 serves as an auxiliary force to provide a clamping force between the functional portion 300 and the sound-emitting portion 100, and in this case, angle α6 also increases accordingly.

[0088] Furthermore, in some embodiments, in order to consider wearing comfort and the smaller size of the ear clip earphones when not worn, the equivalent diameter of the cross-sectional area of ​​the functional part 300 does not exceed 15 mm. When the earphones are not worn, the shortest distance between the outer surface of the functional part 300 and the second connecting part 220 is not greater than 6 mm, and the shortest distance between the functional part 300 and the sound-emitting part 100 is not greater than 5 mm.

[0089] like Figures 16-19 As shown, the sound-emitting part 100 provides an acoustic cavity and a sound outlet for the electroacoustic transducer. The acoustic cavity in front of the diaphragm of the electroacoustic transducer is the first cavity 110, and the acoustic cavity behind the diaphragm of the electric energy transducer and close to the magnetic circuit system is the second cavity 120. The volume of the first cavity 110 and the second cavity 120 is not more than 1 cm 3 . The first cavity 110 has at least one first sound outlet 111, and the first sound outlet 111 is located on the first surface or the raised structure 150 on the first surface, and the raised structure 150 is arranged on the first surface or the side of the sound-emitting part 100. The second cavity 120 has at least one second sound outlet 121, and the second sound outlet 121 is located on the second surface. The first surface is the surface of the sound-emitting part 100 facing away from the functional part 300, and the second surface is the surface opposite to the first surface, and the second surface faces the functional part. The diaphragm vibrates to emit sound through the first sound outlet 111 and the second sound outlet 121, and makes the amplitude of the sound emitted by the first sound outlet 111 and the second sound outlet 121 close, and the phase is close to 180°.

[0090] The maximum distance from the center of the first sound outlet 111 to the edge of the sound-emitting part 100 does not exceed 4 mm. This distance allows the first sound outlet to be closer to the external auditory canal when the earphones are worn, so that the sound effect received by the external auditory canal is better. The angle formed by the line connecting the center of the electroacoustic transducer diaphragm and the first sound outlet 111, and the line connecting the center of the electroacoustic transducer diaphragm and the center of the second sound outlet 121 is 135°-180°. This angle brings the first sound outlet 111 and the second sound outlet 121 closer to the edge of the electroacoustic transducer or the edge of the sound-emitting part. The line connecting the centers of the first sound outlet 111 and the second sound outlet 121 forms an angle of no more than 90° with the plane perpendicular to the vibration direction of the electroacoustic transducer diaphragm. The smaller the angle, the farther the first sound outlet 111 and the second sound outlet 121 are from each other.

[0091] The center distance between the first sound hole 111 and the second sound hole 121 is not less than 5mm and not more than 15mm. The area of ​​the first sound hole 111 and the second sound hole 121 is not less than 3.7mm 2 , the area of ​​the first sound outlet hole 111 is 0.5-2.3 times the area of ​​the second sound outlet hole 121 .

[0092] The raised structure 150 helps the sound emitted by the electroacoustic transducer to enter the external auditory canal, and at the same time increases the distance between the first sound outlet 111 and the second sound outlet 121, which helps more energy of the sound signal to enter the external auditory canal. Figure 11 As shown, the first sound hole 111 is located on the end face of the raised structure 150, and the end face is parallel to the first surface or forms an angle of no more than 180°. When the first surface is an arc surface, the end face is parallel to the average normal perpendicular plane of the first surface or forms an angle of no more than 180°.

[0093] From the perspective of ergonomics, in order to enhance the user's comfort when wearing headphones, that is, the connection part 200 supports the sound-emitting part 100 to be completely or partially located in the concha, or from the perspective of sound quality, a larger electroacoustic transducer needs to be used. Optionally, the electroacoustic transducer is circular with a diameter of 12mm-22mm, or it can be non-circular, including but not limited to rectangular, runway-shaped or elliptical. The non-circular electroacoustic transducer has a larger size in the direction toward the first connection part 210 and a smaller size in the direction perpendicular to the first connection part 210. Specifically, as Figure 4 As shown, the electroacoustic transducer has the same or larger size in the direction toward the top of the sound-emitting part than in the direction of the width of the sound-emitting part, that is, the electroacoustic transducer has a larger size in the length direction of the sound-emitting part and a smaller or the same size in the width direction of the sound-emitting part, thereby realizing an electroacoustic transducer with a diaphragm with a larger vibration area, thereby reducing the low-frequency resonant frequency F0 of the electroacoustic transducer and improving the low-frequency sound quality performance of the headphones.

[0094] Specifically, the ratio of the size of the electroacoustic transducer in the length direction of the sound-emitting part to the size in the width direction of the sound-emitting part is between 1-3. Preferably, the size of the electroacoustic transducer in the length direction of the sound-emitting part is 15mm-22mm, and the size in the width direction of the sound-emitting part is 12-16mm.

[0095] Further, if Figure 18 As shown, in some embodiments, the second cavity 120 is connected to at least one bass enhancement duct 122, and the bass enhancement duct 122 has at least one third sound outlet 123 that communicates with the outside air. When the electroacoustic transducer vibrates and emits sound, the sound signal is radiated outward from the second cavity 120, the bass enhancement duct 122, and its third sound outlet 123, thereby enhancing low-frequency sound quality. Specifically, the bass enhancement duct 122 is located within the first connecting portion 210 and the second connecting portion 220 through the second cavity, and the third sound outlet 123 is located away from the first sound outlet 111 to prevent the acoustic dipole effect from canceling out low frequencies. Preferably, the third sound outlet 123 is disposed outside the surface forming the second cavity, located on the surface of the first connecting portion 210, the surface of the second connecting portion 220, or the intersection of the first connecting portion 210 and the second connecting portion 220, and the distance between the third sound outlet 123 and the first sound outlet 111 is no less than 10 mm. The cross-section of the bass enhancement duct 122 includes but is not limited to a circle, and can also be a rectangle, a square, a racetrack, an ellipse, etc. Its shape is mainly determined by the shape of the electroacoustic transducer and the second cavity 120. Its cross-sectional area is 1mm 2 -5mm 2 , the length is not less than 7mm, and the cross-sectional area of ​​the third sound hole 123 is 1mm 2 -5mm 2 .

[0096] The headset also includes a microphone for calls, which is located on the second connecting portion 220 and picks up external sound through a first sound pickup hole 221 and a second sound pickup hole 222. The first sound pickup hole 221 and the second sound pickup hole 222 are located on the inner side of the second connecting portion 220. The inner side is the side closest to the functional portion 300, which is closer to the ear and faces the windward direction, thus preventing wind from directly hitting the microphone. Preferably, the first sound pickup hole 221 is located on the midline of the short side of the inner side of the connecting portion 200 to minimize wind from directly hitting the microphone's sound pickup hole.

[0097] Specifically, if Figure 4 and Figure 11As shown, the inner side is the surface of the second connecting portion that rests against the ear when the earphone is worn. The first side is the upper surface of the second connecting portion 220, the second side is the lower surface of the second connecting portion 220, and the third side is the front surface of the second connecting portion 220. The third side is opposite the inner side and is the windward side. The first sound pickup hole 221 is located near the second side and the first connecting portion, and its distance from the second side is greater than or equal to its distance from the first connecting portion. The second sound pickup hole 222 is located near the first side and the functional portion, and its distance from the first side is greater than or equal to its distance from the third connecting portion. The first sound pickup hole 221 is located near the second sound outlet 121, and the distance between the first sound pickup hole 221 and the second sound outlet 121 is no less than 6 mm to reduce the sound emitted by the second sound outlet 121 being picked up by the first sound pickup hole 221.

[0098] Furthermore, a first windproof groove 223 is provided in front of the first sound pickup hole 221, and a second windproof groove 224 is provided in front of the second sound pickup hole 222. The first windproof groove 223 extends from the first sound pickup hole 221 to the second side surface of the second connecting portion 220, and the second windproof groove 224 extends from the second sound pickup hole 222 to the first side surface of the second connecting portion 220. The first windproof groove 223 and the second windproof groove 224 are arc-shaped structures, and the angle formed by the tangent of the arc structure slot and its corresponding side surface is less than 90°. This angle makes the windproof groove and the oncoming wind approximately in the same direction. When wind acts on the sound pickup hole, the wind groove can unload some of the wind force, reducing the wind force acting on the microphone pickup hole. The width of the windproof groove is 1-2 times the equivalent diameter of the sound pickup hole, the depth is 1-2mm, and the length is 4-8mm.

[0099] Furthermore, in some embodiments, the earphones further include a first sensor 240 , which is disposed on the inner side of the second connecting portion 220 or the inner side of the sound-emitting portion 100 , and is used to detect whether the earphones are worn on a human ear.

[0100] The mainboard is mounted within the cavity of the second connecting portion 220, and control keys are provided on the surface of the second connecting portion 220. These keys can be used to control the mainboard through touch, sliding, tapping, pressing, and other methods, thereby enabling operations on the headset, such as answering calls, playing music, adjusting the volume, etc. As can be understood, the second connecting portion 220 is larger in size, and therefore, compared to existing control keys located in the function portion 300, placing the control keys there is more convenient for operation.

[0101] The functional unit 300 houses a battery, charging pins, and a power button for controlling the earphones, providing power and charging connectivity. The power button and charging pins are located on the top and bottom of the functional unit 300, with the power button located on the top and the charging pins on the bottom. The bottom surface is flat or concave, ensuring a more secure connection between the earphones and the charging dock. If liquids such as sweat are deposited on the earphones, the liquid is distributed around the circular area of ​​the functional unit 300, surrounding the charging pins. This reduces corrosion from sweat and improves the durability of the earphones.

[0102] Furthermore, in some embodiments, the ear-clip earphone further includes: a first tuning hole 130 , a second tuning hole 140 and an in-ear earmuff 400 .

[0103] Specifically, a first tuning hole 130 is provided on the surface forming the first cavity 110, and a second tuning hole 140 is provided on the surface forming the second cavity 120. The first tuning hole 130 is located on the first surface, and the second tuning hole 140 is located on the second surface. The in-ear earmuff 400 is placed outside the sound-emitting portion and blocks the second sound outlet 121. The spacing between the first tuning hole 130 and the first sound outlet 111 is 4mm-8mm, and the spacing between the second tuning hole 130 and the second sound outlet 121 is also 4mm-8mm. The first tuning hole 130 should be as close as possible to the first sound outlet 111, and the second tuning hole 140 should be close to the second sound outlet 121.

[0104] The first tuning hole 130 primarily adjusts the damping of the front side of the electroacoustic transducer diaphragm (i.e., the first cavity 110) to adjust low frequencies, control bass, and prevent the sound from the front side of the electroacoustic transducer diaphragm from being transmitted entirely into the external auditory canal, resulting in excessive low frequencies. This optimizes the frequency response curve and sound quality. The second tuning hole 140 primarily adjusts the damping of the rear side of the electroacoustic transducer diaphragm (i.e., the second cavity 120) to prevent the rear side of the electroacoustic transducer diaphragm from being completely sealed, which would result in the diaphragm being unable to vibrate significantly and producing less low frequencies. This optimizes the frequency response curve and sound quality.

[0105] Furthermore, the in-ear earmuff 400 includes a third sound adjustment hole 410, a fourth sound adjustment hole, and an ear cap 420. The ear cap 420 includes a sound guide tube. The third sound adjustment hole 410 is aligned with the first sound adjustment hole 130 in the first cavity 110, the fourth sound adjustment hole is aligned with the second sound adjustment hole 140 in the second cavity 120, and the sound guide hole is aligned with the first sound outlet hole 111 and transmits sound outward through the guide tube. The in-ear earmuff 400 is a detachable structure.

[0106] Specifically, if Figure 17As shown, the ear-clip earphone sleeve is provided with an in-ear earmuff. At this time, the earphone is in the in-ear state, the fourth tuning hole of the earmuff is aligned with the center of the second tuning hole 140, and the sound signal of the second cavity 120 is transmitted to the fourth tuning hole through the second tuning hole 140, and finally transmitted to the outside air; the third tuning hole 410 is aligned with the center of the first tuning hole 130, and the sound guide tube of the ear cap 420 is aligned with the center of the first sound outlet hole 111. Most of the sound signal of the first cavity 110 is transmitted into the ear canal through the first sound outlet hole 111 and the sound guide tube of the ear cap 420. The low-frequency sound signal in the first cavity 110 is transmitted to the third tuning hole 410 through the first tuning hole 130, and finally transmitted to the outside air.

[0107] Furthermore, the first sound outlet 111 and the second sound outlet 121 are made of acoustic mesh with low acoustic impedance, and the acoustic impedance is not greater than 2*10 7 Pa*s / m 3 The acoustic impedance of the acoustic mesh fabric of the first tuning hole 130 and the second tuning hole 140 is not less than 5*10 7 Pa*s / m 3 The volume of the second cavity 120 is 100mm 3 -1000mm 3 The first cavity 110, the second cavity 120, the first tuning hole 130 and the second tuning hole 140 provide greater damping to meet the tuning requirements when the acoustic mode is switched.

[0108] When the ear-clip earphones are not equipped with the in-ear earmuffs 400, the earphones are in an open state. In this state, since the acoustic impedance of the mesh fabric at the first tuning hole 130 and the second tuning hole 140 is large, the sound emitted by the electroacoustic transducer is mainly radiated outward through the first sound outlet hole 111 and the second sound outlet hole 121. Therefore, the first tuning hole 130 and the second tuning hole 140 have little effect on the frequency response in this state.

[0109] Specifically, in the open state, sound is radiated outward through the first sound outlet hole 111 and the second sound outlet hole 121. The acoustic mesh at the first sound outlet hole 111 and the second sound outlet hole 121 generally has the characteristic of low acoustic impedance. In the in-ear state, sound is mainly transmitted into the ear canal through the first sound outlet hole 111 and the sound guide tube of the ear cap 420, and the damping on the back side of the electroacoustic transducer diaphragm is relatively large.

[0110] Furthermore, the equivalent area of ​​the third tuning hole 410 is 1-1.2 times the equivalent area of ​​the first tuning hole 130, the equivalent area of ​​the fourth tuning hole is 1-1.2 times the equivalent area of ​​the second tuning hole 140, and the cross-sectional area of ​​the first tuning hole 130 and the second tuning hole 140 is not less than 0.5mm 2 .

[0111] Furthermore, a second sensor 250 is provided on the sound-emitting portion, and the second sensor 250 is used to sense whether the in-ear earmuff 400 is worn on the sound-emitting portion 100 .

[0112] The in-ear earmuffs 400 are used to physically switch the earphones from open to in-ear. Due to the presence of the second sensor 250, the earphones are identified as being in the open state or in-ear state, thereby issuing a command to the mainboard to output the audio equalizer (EQ) in the current state, thereby completing the switch of the audio frequency response curve from open earphones to in-ear earphones, so that users can have a good sound quality experience in different states. The frequency response curve is as follows: Figure 20 shown.

[0113] The earphones according to the present invention have the following advantages:

[0114] 1. By designing a connecting portion 200 with a stretchable structure, the clamping force between the sound-emitting portion 100 and the functional portion 300 is adjusted, so that the user does not have to bear excessive clamping force, and the earphones will not fall off due to insufficient clamping force. The wearing position can also be adjusted by adjusting the length of the connecting portion 200, so that the sound-emitting portion 100 is closer to the external auditory canal to receive sounds with lower sound pressure levels. This greatly improves the wearing and sound experience of the ear-clip earphones and allows for a smaller size.

[0115] 2. By providing a pickup hole and a windproof groove for the call microphone on the connecting part 200, the call quality of the user is improved, especially the call quality in windy conditions such as walking, running or riding, thereby improving the user experience.

[0116] 3. Through the in-ear earmuffs 400, the physical switch from open-ear to in-ear headphones is achieved, so that users can have a good sound quality experience in different states.

[0117] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. All equivalent variations and modifications within the scope of the claims of the present invention are intended to be covered by the claims of the present invention.

[0118] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An earphone comprising: The sound-generating part, the functional part and the connecting part are characterized in that part or all of the connecting part is a flexible structure that can be extended or retracted, and the flexible structure enables the connecting part to stretch or shrink or deform and expand to support the earphones worn on ears of different sizes and provide different clamping forces. The connecting portion includes: a first connecting portion, a second connecting portion and a third connecting portion; The first connection part is connected to the sound-producing part, the third connection part is connected to the functional part, and the second connection part connects the first connection part and the third connection part; Part or all of the first connecting portion, the second connecting portion and the third connecting portion are flexible structures that can be extended and retracted; The third connecting portion is a winding flexible structure, and the third connecting portion is wound around the central axis of the functional portion.

2. The ear-clip headphone according to claim 1, characterized in that: The minimum value of the farthest distance from the third connection portion to the first connection portion (210) is 22 mm to 30 mm, and the maximum value of the farthest distance is 24 mm to 45 mm.

3. The ear-clip headphone according to claim 2, characterized in that: The length of the wound flexible structure is 1 / 5-4 / 5 of the circumference of the functional part. The length of the wound flexible structure is 5mm-25mm, the width is 2mm-10mm, and the thickness is not more than 4.5mm.

4. The ear-clip headphone according to claim 3, characterized in that: The second connecting portion of the rolled flexible structure has a length of 10 mm to 22 mm, a thickness of 4 mm to 8 mm, and a width of 6 mm to 18 mm; The thickness ratio of the third connecting portion to the second connecting portion is 0.3-1, and the width ratio is 0.2-1.

5. The ear-clip headphone according to claim 2, characterized in that: The first connecting portion has a length of 3 mm to 8 mm, a thickness of 4 mm to 8 mm, and a width of 6 mm to 18 mm; The included angle α1 between the first connecting portion and the second connecting portion is 70°-155°; The included angle α2 between the first connecting portion and the sound-generating portion is 150°-180°.

6. The ear-clip headphone according to claim 1, characterized in that: The first connecting portion is an arc-shaped extending structure, and the first connecting portion includes one or more arc-shaped structures, and the curvature of the arc-shaped structure is not greater than 240°.

7. The ear-clip headphone according to claim 1, characterized in that: The third connecting portion is an arc-shaped tension spring structure, the arc of the arc-shaped tension spring structure is 120°-220°, the inner arc diameter is not greater than 4mm, and the outer arc diameter is not greater than 8mm.

8. The ear-clip headphone according to claim 1, wherein: The third connecting portion is a folding spring structure, and the folding spring structure includes but is not limited to a triangle or a trapezoid.

9. The ear-clip headphone according to claim 1, characterized in that: The third connecting portion is a circular spring structure, the wire diameter of the circular spring structure is not greater than 3.5 mm, the median diameter is not greater than 12 mm, and the number of spring coils is not less than 2; The sound-generating part, the first connecting part and the second connecting structure are an integrated structure, and the third connecting part is a soft structure; The width of the second connecting portion is 15 mm and the thickness is 7 mm, and the width of the third connecting portion is 8 mm and the thickness is 2.5 mm; The third connecting portion is a rectangular or polygonal soft structure; The included angle α3 between the third connecting portion and the second connecting portion is not greater than 120°; The included angle α4 between the third connecting portion and the functional portion is not greater than 90°; The sound-generating part includes an electroacoustic transducer, and the cavity acoustically coupled with the electroacoustic transducer includes a first cavity and a second cavity, wherein the volume of the first cavity and the second cavity is not greater than 1 cm 3 ; The ratio of the size of the electroacoustic transducer in the length direction of the sound-emitting portion to the size in the width direction of the sound-emitting portion is 1-3, the size in the length direction of the sound-emitting portion is 15 mm-22 mm, and the size in the width direction of the sound-emitting portion is 12-16 mm; The first cavity includes at least one first sound outlet hole, the second cavity includes at least one second sound outlet hole, and the maximum distance from the first sound outlet hole to the edge of the sound-emitting part does not exceed 4 mm; The angle formed by the line connecting the center of the diaphragm and the second sound outlet is 135°-180°; The center distance between the first sound hole and the second sound hole is not less than 5 mm and not more than 15 mm; The area of ​​the first sound hole and the second sound hole is not less than 3.7mm 2 ; The area of ​​the first sound outlet is 0.5-2.3 times the area of ​​the second sound outlet; The invention also includes: a bass enhancement duct, wherein the bass enhancement duct includes at least one third sound outlet hole; The bass enhancement duct is connected to the second cavity and passes through the connecting portion, and is connected to the outside air through the third sound outlet hole; The distance between the first sound hole and the third sound hole is not less than 10 mm, and the cross-sectional area of ​​the third sound hole is 1 mm. 2 -5mm 2 .

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