CN114339521B - Connecting piece, bent arm and bone conduction earphone for ear-clamping earphone - Google Patents
Connecting piece, bent arm and bone conduction earphone for ear-clamping earphone Download PDFInfo
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- CN114339521B CN114339521B CN202111669077.4A CN202111669077A CN114339521B CN 114339521 B CN114339521 B CN 114339521B CN 202111669077 A CN202111669077 A CN 202111669077A CN 114339521 B CN114339521 B CN 114339521B
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Abstract
The invention discloses a connecting piece, a bent arm and a bone conduction earphone for a clip-on earphone, wherein the connecting piece comprises a hard main body, the main body comprises a straight line section and an arc line section, the straight line section and the arc line section are integrally molded to form the appearance of the main body, the straight line section extends out of a clamping hook structure in the direction away from the arc line section, the bending direction of the arc line section is opposite to the hooking direction of the clamping hook structure, and the section area of the arc line section is gradually reduced along the direction away from the straight line section. The connecting piece is more attached to the structure of the bent arm, is not easy to deform and break, and has higher stability; the memory steel wire is adopted in the bent arm, so that the elastic force is strong, the restoring force is better, and the clamping effect is not influenced after long-term use; the earphone is stable in clamping and better in wearing experience.
Description
[ field of technology ]
The invention relates to the technical field of bone conduction headphones, in particular to a connecting piece, a bent arm and a bone conduction headphone for a clamp ear type headphone.
[ background Art ]
The bone conduction earphone is internally provided with a bone conduction vibrator, and sound source signals such as electric signals are converted into mechanical vibrations through the bone conduction vibrator and then are contacted with human bones to transmit vibrations to the human body, so that the human can receive sound through the bones. The prior bone conduction earphone comprises a hanging type earphone, a clamping type earphone or a neck hanging type earphone, wherein the clamping type earphone is favored by more and more consumers due to the advantages of small structure, fashionable appearance, flexible wearing, convenient carrying and the like. The prior ear-clamping earphone mainly comprises a C-shaped elastic arm, and a vibration cavity and a control cavity which are hung at the two ends of the C-shaped elastic arm, when the ear-clamping earphone is used, the earphone is clamped on an auricle through deformation of the elastic arm, but the prior earphone is assembled and connected with the joint of two cavities by adopting a lock catch structure for production and assembly convenience, and the assembly mode is used for a long time, and the lock catch structure is loosened, distorted or even broken due to repeated deformation of the elastic arm in repeated wearing, so that the clamping effect is gradually reduced, and the wearing and the use experience of the earphone are influenced.
[ invention ]
The invention aims at overcoming the defects in the prior art, and provides a connecting piece, a bent arm and a bone conduction earphone for a clamp ear earphone, wherein the connecting piece adopts a hard main body and is formed by combining a straight line section and an arc line section, the connecting piece is more attached to the structure of the bent arm, deformation and fracture are not easy to occur, the stability is higher, a memory steel wire is adopted in the bent arm, the elasticity is higher, the restoring force is better, and the clamping effect is not influenced after long-term use.
Other features and advantages of the invention will be apparent from the following detailed description, or may be learned by the practice of the invention.
In a first aspect, the present invention provides a connector for a clip earphone, including a hard main body, where the main body includes a straight line segment and an arc segment, the straight line segment and the arc segment are integrally molded to define an appearance of the main body, the straight line segment extends out of a hook structure in a direction away from the arc segment, a turning direction of the arc segment is opposite to a hooking direction of the hook structure, and a tangential area of the arc segment gradually decreases in a direction away from the straight line segment.
Preferably, the method comprises the steps of,
the linear section of the main body is embedded with a locking piece.
Preferably, the method comprises the steps of,
the locking piece comprises a lock hole and a lock pin, and the lock pin is fixedly connected in the lock hole through threads.
Preferably, the method comprises the steps of,
the side of the straight line section is composed of a plane and a convex cambered surface, wherein the plane and the bending direction of the cambered section are on the same side, and the cambered surface and the hooking direction of the hook structure are on the same side.
Preferably, the method comprises the steps of,
the connecting piece comprises a first main body and a second main body, wherein the first main body and the second main body are a group of opposite main bodies, the straight line section of the first main body is of a solid structure, and the second main body is internally embedded with a locking piece.
In a second aspect, the present invention provides a crimping arm for a clip-on earphone, comprising:
the memory steel wire is bent to form an arc with the radian not more than two thirds pi;
the soft colloid is integrally poured and wrapped outside the middle section of the memory steel wire;
the connecting piece according to the first aspect, wherein the connecting piece comprises two hard bodies, and the hard bodies are respectively fixed at two ends of the memory steel wire and are tightly connected with the soft colloid.
Preferably, the method comprises the steps of,
one end of the memory steel wire is embedded and fixed in the hard main body of the connecting piece, and the other end of the memory steel wire extends out of the hard main body of the connecting piece to form a hook.
Preferably, the method comprises the steps of,
the hard main body comprises a first main body and a second main body, the first main body is of a solid structure, one end of the memory steel wire is embedded into the first main body and extends out of the hook in the direction away from the soft colloid, a locking piece is embedded into the second main body, and the other end of the memory steel wire is embedded into the second main body.
In a third aspect, the present invention provides a bone conduction headset comprising:
the bent arm according to the second aspect, wherein a memory steel wire is fixedly embedded in the bent arm, and the memory steel wire comprises a clamping state and an expanding state;
the first clamping body is fixedly connected with the bent arm through a first main body at one end of the bent arm, and a bone conduction oscillator is fixed in the first clamping body;
the second clamping body is fixedly connected with the bent arm through a second main body at the other end of the bent arm, and an electric control module is fixed in the second clamping body and is electrically connected with the bone conduction vibrator;
when the memory steel wire is in a clamping state, the horizontal central axes of the first clamping body and the second clamping body are parallel to each other; when the memory steel wire is in an expanded state, the first clamping body is intersected with an extension line of the horizontal central axis of the second clamping body.
Preferably, the method comprises the steps of,
the surface of the first clamping body, which is opposite to the second clamping body, is a plane, and the surface of the second clamping body, which is opposite to the first clamping body, is a concave cambered surface.
The invention has the advantages that:
1. the connecting piece adopts the hard main body, has better fixing effect, is not easy to deform, and is suitable for connecting the elastic piece and the fixing piece.
2. The connecting piece adopts a structure in which the straight line section and the arc line section are integrally formed, is more suitable for connection between the bending structure and the straight line structure, can prevent the elastic force generated by deformation of the bending structure from being transmitted to the straight line structure, and avoids deformation loosening or structural fracture and damage caused by the influence of the elastic force on the straight line structure.
3. The bent arm is formed by fixing the hard main bodies at the two ends of the memory steel wire and integrally casting the hard main bodies with the soft colloid, so that the bent arm can be shaped quickly, the problem of unstable rotation of the memory steel wire caused by a gap left between the memory steel wire and an outer cover can be avoided, and the use stability of the bent arm is improved.
4. The bone conduction earphone is fixed at the joint of the clamping body and the bent arm by adopting the hard main body, so that the stability of the connection between the clamping body and the bent arm is enhanced, the clamping body is prevented from being damaged by elastic force generated by the expansion of the bent arm, and the working efficiency of the bone penetrating vibrator in the clamping body is influenced.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the invention or the prior art solutions, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some of the embodiments described in the present invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic perspective view of a connector for a clip earphone according to the present invention in a first embodiment;
FIG. 2 is an exploded view of the structure of the connector for a ear-clip earphone of the present invention in a second embodiment;
fig. 3 is a longitudinal section of the connector for a ear-clip earphone according to the invention in a second embodiment;
fig. 4 is a schematic view of the structure of the connector for the ear-clip earphone according to the present invention in the third embodiment;
FIG. 5 is a schematic view of the structure of a flexure arm for a ear-clip earphone of the present invention in one embodiment;
FIG. 6 is a schematic diagram of the flexure arm exploded construction of the present invention for a clip-on earphone;
FIG. 7 is an exploded view of a flexure arm of the present invention for a clip-on earphone;
fig. 8 is a schematic structural view of a bone conduction headset according to the present invention;
FIG. 9 is a partial schematic view showing the structure of the connection between the first clamping body and the bent arm of the bone conduction headset according to the present invention;
fig. 10 is a partial schematic view showing a connection structure between the second clamping body and the bent arm of the bone conduction headset.
Reference numerals and components referred to in the drawings are as follows:
1. the cable comprises a main body, 11, a straight line section, 111, a plane, 112, an arc surface, 113, a clamping hook structure, 12, an arc line section, 13, a locking piece, 131, a lock hole, 132, a pin, 101, a first main body, 102, a second main body, 2, a bent arm, 21, a memory steel wire, 211, a bent hook, 22, a soft colloid, 3, a bone conduction earphone, 31, a first clamping body, 32, a second clamping body and 4 a conducting wire.
[ detailed description ] of the invention
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The connecting piece for the ear-clamping earphone is mainly used for connecting the elastic component and the fixing component, plays a role of reducing the elastic force of the elastic component to be transmitted to the fixing component, and therefore enhances the tightness and rigidity of the connecting part. The bending arm is mainly used for connecting two clamping bodies, the bending radian of the bending arm forms a C-shaped structure or a U-shaped structure or other bending structures which are attached to the auricles of a human body, particularly to the auricles of the human body, and the bending structure of the bending arm is limited by the shape of a memory steel wire. The bone conduction earphone can be used alone or in pairs in the use process, and when the bone conduction earphone is used alone, the left ear and the right ear are not distinguished, and the bone conduction earphone is directly communicated with the sound source equipment to transmit sound signals; when the pair of the two-way earphone is used, the left ear and the right ear are distinguished, the technical scheme of the left ear bone conduction earphone and the right ear bone conduction earphone is completely the same, the structure is symmetrical, the left ear bone conduction earphone and the right ear bone conduction earphone can be used simultaneously or independently, communication can be established between the two, and the two can be independently communicated with the sound source equipment.
Three embodiments of the connector for a ear-clip earphone according to the first aspect of the present invention will be described below with reference to fig. 1 to 4.
Embodiment one:
referring to fig. 1, the connecting piece for the ear-clip earphone of the present invention comprises a hard main body 1, wherein the main body 1 comprises a straight line segment 11 and an arc line segment 12, the straight line segment 11 and the arc line segment 12 are integrally molded to define the appearance of the main body 1, the straight line segment 11 extends out of a hook structure 113 in a direction away from the arc line segment 12, the bending direction of the arc line segment 12 is opposite to the hooking direction of the hook structure 113, and the section area of the arc line segment 12 gradually decreases along the direction away from the straight line segment 11.
In a preferred embodiment, as shown in fig. 1, the main body 1 has an oblate or oblate-like structure as a whole, and a cross section of the main body 1 can be obtained by horizontally cutting at any position in the horizontal direction in the figure. The straight line segment 11 refers to a straight line structure without bending, and the arc line segment 12 refers to an arc line structure with arc bending. The invention ensures the stability and rigidity of the whole structure of the connecting piece through the integral molding of the straight line section 11 and the arc line section 12, and can play a better role in connection and fixation. The hook structure 113 extending from one end of the straight line segment 11 is a hooked right angle structure or an acute angle structure, and can play a role of locking and limiting during connection.
Preferably, the side surface of the straight line segment 11 is integrally formed by a plane 111 and a convex cambered surface 112, wherein the plane 111 and the bending direction of the cambered segment 12 are on the same side, and the cambered surface 112 and the hooking direction of the hook structure 113 are on the same side.
Example two
The difference between the present embodiment and the first embodiment is that the inside of the straight line segment 11 is a hollow structure, and the locking member 13 is embedded, and other technical solutions are the same as or similar to those of the first embodiment, so that the present embodiment is not repeated.
Referring to fig. 2 and 3, the hard main body 1 of the connector for the ear-clip earphone of the present invention comprises a straight line segment 11 and an arc line segment 12, which are integrally formed by transition, wherein a locking piece 13 is embedded in the straight line segment 11. Specifically, the outer part of the straight line segment 11 is a hard shell, the inner part of the straight line segment is hollow and fixed with a locking piece 13, and the locking piece 13 is designed to enable the connecting piece to achieve the connecting effect in a locking mode. Preferably, the locking member 13 includes a locking hole 131 and a locking pin 132, and the locking pin 132 is fixedly connected in the locking hole 131 through threads. Specifically, the lock hole 131 may be configured as a cylindrical structure, and is fixed inside the straight line segment 11 by casting or bonding, an internal thread is disposed in the lock hole 131, and is connected with the pin 132 by a thread, the pin 132 is designed as a nut structure, and one end of the nut structure is provided with a blocking plate, and the orthographic projection area of the blocking plate is larger than that of the lock hole 131, preferably, larger than that of the straight line segment 11 in horizontal section.
Example III
The difference between the present embodiment and the first and second embodiments is that the connecting piece of the present invention is composed of a set of hard bodies, and other technical solutions are the same as or similar to those of the first embodiment, so that the present embodiment is not repeated.
Referring to fig. 4, the connector for the ear-clip earphone of the present invention is composed of a set of symmetrically arranged hard bodies, and the two bodies 1 may be identical or may be arranged to have a similar local appearance, or the two bodies 1 are respectively designed as the first technical solution and the second technical solution of the embodiment. As shown in the figure, the connecting piece includes a first main body 101 and a second main body 102, where the first main body 101 and the second main body 102 are a set of opposite main bodies 1, the straight line section 11 of the first main body 101 is of a solid structure, and the second main body 102 is embedded with a locking piece 13. The direction in which the locking member 13 is exposed from the second body 102 is the same as the extending direction of the hook structure 113.
In a second aspect the invention provides a solution for a crimping arm for a ear-clip earphone, the following description of which describes a specific embodiment of the crimping arm in connection with figures 5-7.
Referring to fig. 5 to 7, the arm 2 for a clip earphone of the present invention comprises a memory wire 21, a soft rubber body 22 and a connecting member, the memory wire 21 is bent to form an arc with an arc degree of not more than two thirds pi, and the initial bent configuration of the memory wire 21 defines the overall appearance of the arm 2; the soft colloid 22 is integrally poured and wrapped outside the middle section of the memory steel wire 21, the soft colloid 22 refers to an outer coating of the memory steel wire 21 which is made of a material with elasticity, flexibility and relatively soft touch, and the soft colloid 22 can also be made of thermoplastic polyurethane, TPE material or other materials with wear resistance, oil resistance, corrosion resistance or waterproofness; the connecting piece comprises two hard bodies (a first body 101 and a second body 102), wherein the hard bodies are respectively fixed at two ends of the memory steel wire 21 and are tightly connected with the soft colloid 22. In practical application, when the soft colloid 22 is formed by casting to the outside of the memory steel wire 21, in order to facilitate manufacturing and forming, the two ends of the memory steel wire 21 are fixed with the connecting piece, and then the soft colloid is cast between two hard bodies, so as to finally form an integral bent arm structure. In this embodiment, the memory steel wire 21 is bent to an original state when no external force is applied, and the original shape of the memory steel wire 21 is configured into an arc strip structure with a preset radian value according to the use scene of the bent arm when the memory steel wire 21 is manufactured.
In a preferred embodiment, the two ends of the memory wire 21 are structurally different, and one end is embedded and fixed in the hard body of the connecting piece, and the ends can be any shape, including but not limited to linear type, hook type, ring type, circular type, etc., and the other end extends out of the hard body of the connecting piece to form a stable hook 211. The hook 211 allows a hooking structure to be formed between the arm 2 and other fittings.
The hard bodies at the two ends of the bent arm 2 can be provided with the same structure, and the structures of the bodies 1 at the two ends can be provided differently according to the parts connected with the bent arm 2. Preferably, the hard body includes a first body 101 and a second body 102, the first body 101 is of a solid structure, one end of the memory wire 21 is embedded in the first body 101 and extends out of the hook 211 in a direction away from the soft colloid 22, the second body 102 is embedded with a locking member 13, and the other end of the memory wire 21 is embedded in the second body 102 and does not extend out. Preferably, the end of the memory wire 21 in the second body 102 is not in contact with the locking member 13, and both are fixed inside the second body 102 by casting.
As a preferred embodiment, in order to ensure that the memory wire 21 does not rotate or move inside the body 1, the first body 101 and the second body 102 are respectively formed by pouring or casting at both ends of the memory wire 21 during the manufacturing process of the bent arm 2, so that the memory wire 21 becomes a part of the body inside.
It should be noted that the memory steel wire of the present invention is an elastic member with a shape memory function, which can deform under the action of external force, and can completely recover the original shape after the external force is eliminated, and the material of the memory steel wire includes but is not limited to a specific elastic strip member made of metal wires, fiber wires, alloy wires or other rigid materials.
According to a third aspect of the invention, a technical solution is provided for a bone conduction headset, wherein the bone conduction headset is mainly connected with two clamping bodies through the connecting piece of the first aspect and the bent arm of the second aspect, so that the headset can be worn in a clamping mode. The following describes embodiments of the bone conduction headset in connection with fig. 8-10.
Referring to fig. 8, the bone conduction headset 3 of the present invention includes a bent arm 2, and a first clamping body 31 and a second clamping body 32 which are hung at both ends of the bent arm 2, and the first clamping body 31 and the second clamping body 32 are respectively fixed at both sides of an auricle by controlling deformation of the bent arm 2 when the bone conduction headset is worn. The memory steel wire 21 is fixedly embedded in the bent arm 2, the memory steel wire 21 comprises a clamping state and an expanding state, the clamping state refers to an original state that the bone conduction earphone 3 is not subjected to any external force, in the state, the bone conduction earphone 3 can be stored in an earphone bin or naturally placed or just clamped on an auricle, and in the expanding state, the bone conduction earphone 3 is subjected to the external force, and the bent arm 2 is unfolded, so that the wearing operation is convenient; the first clamping body 31 is fixedly connected with the bent arm 2 through a first main body 101 at one end of the bent arm 2, and a bone conduction oscillator (not shown in the figure) is fixed in the first clamping body 31, and the bone conduction oscillator is a core component for ensuring that the bone conduction earphone 3 of the present invention can normally listen to sound, and since any oscillator (or a loudspeaker, an amplifier, etc.) capable of realizing bone conduction vibration listening sound can be applied to the bone conduction earphone of the present invention, the specific structure of the bone conduction oscillator is not described in the present embodiment; the second clamping body 32 is fixedly connected with the bent arm 2 through a second main body 102 at the other end of the bent arm 2, and an electric control module is fixed in the second clamping body 32 and is electrically connected with the bone conduction vibrator; when the memory wire 21 is in a clamped state, the horizontal axis m1 of the first clamping body 31 and the horizontal axis m2 of the second clamping body 32 are parallel to each other; when the memory wire 21 is in an expanded state, the first clamping body 31 intersects with an extension line of the horizontal central axis of the second clamping body 32.
Specifically, all the implementation manners and technical features of the bent arm 2 used in the present embodiment are the same as those of the second aspect, so that the description is omitted herein, but the technical features of the second aspect may be directly referred to describe the technical solution of the bone conduction headset of the present embodiment. Referring specifically to fig. 9, the first clamping body 31 is fixedly connected to one end of the bent arm 2 through the first main body 101, and the fixing manner includes: the first clamping body 31 is clamped and fixed through the clamping hook structure 113 on the first main body 101, then the memory steel wire 21 extends out of the hook 211 of the first main body 101 to be hung on the protruding structure in the first clamping body 31 to play a role in reinforcing and fixing, and finally the connecting part of the first clamping body 31 is bent and sleeved on the periphery of the straight line section 11 of the first main body 101, and the two parts are attached. With continued reference to fig. 10, the second clamping body 32 is fixedly connected to one end of the bent arm 2 through the second main body 102, and the fixing manner includes: the connecting part of the second clamping body 32 is firstly completely sleeved on the periphery of the straight line section 11 of the second main body 102, then the clamping and positioning of the second clamping body 32 are carried out by utilizing the clamping hook structure 113 of the second main body 102, and finally the second clamping body 32 and the second main body 102 are locked by the locking piece 13.
In another preferred embodiment, the two clamping bodies of the bone conduction headset of the invention adopt different shapes, wherein a surface of the first clamping body 31 opposite to the second clamping body 32 is a plane, and a surface of the second clamping body 32 opposite to the first clamping body 31 is a concave cambered surface. Through this kind of design structure, can make the structure of clamping body and human auricle laminate more, promote and wear experience.
In practical use, in order to prevent interference, the bone conduction vibrator is usually fixed in the first clamping body 31, the electronic control module is fixedly assembled in the second clamping body 32, and the two clamping bodies are electrically connected through the wire 4, so that the wire 4 is usually fixed inside the bent arm 2 for better accommodating and protecting the wire, and the fixing modes include but are not limited to: in the process of manufacturing and forming the bent arm 2, the lead 4 and the memory steel wire are simultaneously poured and fixed in the bent arm 2, or a lead 4 penetrating channel is arranged at the inner side or the outer side or the edge of the bent arm 2.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are to be included in the scope of the claims of the present invention.
Claims (10)
1. A connecting piece for pressing from both sides ear earphone, its characterized in that includes the stereoplasm main part, the main part includes straightway and pitch arc section, straightway with pitch arc section integrated into one piece is pour and is formed the outward appearance of prescribing a limit to the main part, straightway to keeping away from the direction of pitch arc section extends the pothook structure, the direction of turning over of pitch arc section with the direction of hooking of pothook structure is opposite, the tangent plane area of pitch arc section is followed and is kept away from straightway's direction reduces gradually.
2. The connector for a clip-on earphone of claim 1 wherein the straight section of the body is embedded with a locking member.
3. The connector for a ear speaker of claim 2, wherein the locking member comprises a locking hole and a locking pin, the locking pin being fixedly connected within the locking hole by a screw.
4. The connector for ear-clip headphones as recited in claim 1, wherein the side of the straight section is formed by a flat surface and a convex arcuate surface, wherein the flat surface is on the same side as the arcuate section in the direction of deflection and the arcuate surface is on the same side as the hook-up direction of the hook structure.
5. The connector for a pair of ear phones of claim 1, wherein the connector comprises a first body and a second body, the first body and the second body being a set of opposing bodies, wherein the straight section of the first body is a solid structure, and the second body is embedded with a locking member.
6. A crimping arm for a clip-on earphone, comprising:
the memory steel wire is bent to form an arc with the radian not more than two thirds pi;
the soft colloid is integrally poured and wrapped outside the middle section of the memory steel wire;
the connector of any one of claims 1-5, comprising two hard bodies respectively fixed to both ends of the memory wire and closely connected to the soft colloid.
7. A flexure arm for a ear-clip headset as recited in claim 6, wherein said memory wire is embedded and secured at one end within said rigid body of said connector and extends beyond said rigid body of said connector at the other end to form a hook.
8. The flexure arm for a ear speaker of claim 7 wherein the rigid body comprises a first body and a second body, the first body is of solid construction, one end of the memory wire is embedded in the first body and extends out of the hook in a direction away from the soft gel, the second body is embedded with a locking member, and the other end of the memory wire is embedded in the second body.
9. A bone conduction headset, comprising:
a crimping arm according to any one of claims 6 to 8, wherein a memory wire is fixedly embedded in the crimping arm, the memory wire comprising a gripping state and an expanded state;
the first clamping body is fixedly connected with the bent arm through a first main body at one end of the bent arm, and a bone conduction oscillator is fixed in the first clamping body;
the second clamping body is fixedly connected with the bent arm through a second main body at the other end of the bent arm, and an electric control module is fixed in the second clamping body and is electrically connected with the bone conduction vibrator;
when the memory steel wire is in a clamping state, the horizontal central axes of the first clamping body and the second clamping body are parallel to each other; when the memory steel wire is in an expanded state, the first clamping body is intersected with an extension line of the horizontal central axis of the second clamping body.
10. The bone conduction headset of claim 9, wherein a face of the first clamping body opposite the second clamping body is a planar face and a face of the second clamping body opposite the first clamping body is a concave cambered face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111669077.4A CN114339521B (en) | 2021-12-31 | 2021-12-31 | Connecting piece, bent arm and bone conduction earphone for ear-clamping earphone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111669077.4A CN114339521B (en) | 2021-12-31 | 2021-12-31 | Connecting piece, bent arm and bone conduction earphone for ear-clamping earphone |
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| CN114339521B true CN114339521B (en) | 2023-11-14 |
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|---|---|
| CN114339521A (en) | 2022-04-12 |
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