CN214381390U - Bone conduction listening device - Google Patents
Bone conduction listening device Download PDFInfo
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- CN214381390U CN214381390U CN202120588827.4U CN202120588827U CN214381390U CN 214381390 U CN214381390 U CN 214381390U CN 202120588827 U CN202120588827 U CN 202120588827U CN 214381390 U CN214381390 U CN 214381390U
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- bone conduction
- listening device
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- cavity
- receiving cavity
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- 210000005069 ears Anatomy 0.000 abstract description 8
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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Abstract
The utility model relates to a bone conduction listening device, bone conduction listening device includes elasticity centre gripping main part and balanced articulate in first holding chamber and the second holding chamber at this main part both ends, the inside fixed mounting in first holding chamber has the bone conduction speaker, the main part has initial state and the clamping state of this initial state relatively, in the main part state change process, first holding chamber with second holding chamber use this main part for the fulcrum take place wobbling self central line with the central line of main part changes in order to adapt to by the profile of centre gripping object, first holding chamber with second holding chamber provides this clamping-force by the centre gripping object of centre gripping, and passes through bone conduction speaker to by centre gripping object transmission sound vibration. The utility model discloses a bone conduction listening device makes the people can not need to go into the ear through bone identification sound and uses, wears comfortablely, and the different user auricles of laminating do not block up the ears simultaneously, have improved the safety in utilization.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a listening device is like the structural design technical field of equipment such as earphone, audiphone, specifically speaking, relates to a bone conduction listening device.
[ background of the invention ]
The listening device is a device for converting sound signals and transmitting sound to human ears, such as an earphone, a hearing aid and the like, and can be divided into an air conduction listening device and a bone conduction listening device, the air conduction listening device is based on the principle that the sound signals cause air vibration to generate sound waves, the sound waves are converted into the sound waves audible to the human ears through a loudspeaker, then the vibration is transmitted to eardrum through an external auditory canal and then transmitted to internal ear nerves through the eardrum, and the listening device can cause ear discomfort and damage hearing after being worn for a long time; the bone conduction listening device converts sound source signals (such as electric signals) into mechanical vibration through the bone conduction loudspeaker, and the vibration is transferred to human skeleton by contacting the human skeleton through the listening device, so that a person can recognize sound through the skeleton without entering the ear, the bone conduction listening device is comfortable to wear, and simultaneously the user can not block two ears, thereby improving the use safety and meeting the use requirements of people with hearing disorder. The existing bone conduction listening devices are generally designed into ear-hanging type, box type or earphone types inserted into ear canals, and the bone conduction listening devices of the types have discomfort and inconvenience of different degrees when being worn, so that the experience feeling of a user is difficult to improve, and the requirement of higher use comfort is met.
[ summary of the invention ]
The utility model aims at providing an osteoacusis listening device to not enough among the prior art, making the people can pass through bone identification sound, need not go into the ear and use, wear comfortablely, and the different user auricles of laminating and transmission sound are more clear, do not block up the ears simultaneously, have improved the safety in utilization, also can satisfy the use that has the hearing disorder crowd, promote user experience sense and travelling comfort demand.
In order to solve the technical problem, the utility model discloses a technical scheme does:
a bone conduction listening device comprises an elastic clamping main body, a first accommodating cavity and a second accommodating cavity, wherein the first accommodating cavity and the second accommodating cavity are hung at two ends of the main body in a balanced mode, a bone conduction loudspeaker is fixedly mounted in the first accommodating cavity, the main body has an initial state and a clamping state relative to the initial state, in the process of changing the state of the main body, the center line of the first accommodating cavity and the center line of the second accommodating cavity and the center line of the main body change to adapt to the outline of a clamped object while the main body swings around a fulcrum, the first accommodating cavity and the second accommodating cavity provide clamping force for clamping the clamped object, and sound vibration is transmitted to the clamped object through the bone conduction loudspeaker.
Further, in the above-mentioned case,
the main part includes that hold the piece and the cover is located hold the protection part of piece surface, hold the piece both ends and fix respectively first holding chamber with the second holding chamber.
Further, in the above-mentioned case,
two tail ends of the bearing piece are respectively fixed at the positions of the first containing cavity and the second containing cavity, which are linearly and furthest spaced.
Further, in the above-mentioned case,
and a signal receiver is fixedly arranged in the second accommodating cavity, and the signal receiver is electrically connected with the bone conduction loudspeaker through a lead arranged in the main body in a penetrating manner.
Further, in the above-mentioned case,
the signal receiver in the second accommodating cavity is integrated on a circuit board, and the circuit board is simultaneously connected with a battery for providing electric energy for the bone conduction listening device.
Further, in the above-mentioned case,
the opposite surfaces of the first accommodating cavity and the second accommodating cavity are respectively provided with a panel which is directly contacted with the skin of a human body and transmits the vibration signal of the bone conduction listening device to the bones of the human body.
Further, in the above-mentioned case,
when the main body is in an initial state, the panels of the first accommodating cavity and the second accommodating cavity are parallel to each other and keep a fixed interval.
Further, in the above-mentioned case,
when the main body is in an initial state, the panels of the first accommodating cavity and the second accommodating cavity are parallel to the surface of the central line of the main body; when the main body is in a clamping state, the panels of the first accommodating cavity and the second accommodating cavity form an acute angle on two opposite sides of the surface where the center line of the main body is located.
Further, in the above-mentioned case,
and the inner walls of the first accommodating cavity and the second accommodating cavity are provided with buffer structures, and the bone conduction loudspeaker is separated from the shells of the first accommodating cavity and the second accommodating cavity by the buffer structures.
Further, in the above-mentioned case,
the signal receiver includes a microphone electrically connected to the bone conduction speaker.
The invention has the beneficial effects that:
1. through first holding chamber with the second holding chamber uses this main part as the fulcrum to take place the swing simultaneously self central line with the central line of main part changes, adapts to the profile of being held the object, and the effect that can reach is that clamping structure laminates the centre gripping object more and transmits sound more clear, adapts to different users, and application scope is wider.
2. Two ends of the bearing part of the main body are respectively fixed at the positions with the farthest distance between the two straight lines on the first accommodating cavity and the second accommodating cavity, the comfort of the auricle is met in the relatively swinging areas of the two accommodating cavities, the clamping structure is easier to open, the resilience force is better, and a good clamping state is guaranteed.
3. Through setting up the main part into holding spare and protective member for clamping structure has the effect in two holding chambeies of elastic connection simultaneously, wears to establish the effect of wire or accomodate the wire and improves wearing comfort level and compactness between clamping structure and the people's auricle.
4. Through at the fixed bone conduction speaker of installation of holding intracavity portion, make the people can pass through skeleton identification sound, need not go into the ear and use, do not block up the ears simultaneously, improved the safety in utilization, guaranteed the quality effect of listening.
[ description of the drawings ]
In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings needed to be used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a bone conduction listening device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a main body of the bone conduction listening device of the present invention in a first embodiment;
fig. 3 is a schematic cross-sectional structure diagram of a bone conduction listening device according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bone conduction listening device according to a second embodiment of the present invention;
fig. 5 is a schematic cross-sectional structure diagram of a bone conduction listening device according to a second embodiment of the present invention;
fig. 6 is a schematic cross-sectional structure diagram of a bone conduction listening device according to a third embodiment of the present invention.
The reference numerals and components referred to in the drawings are as follows:
1. the bone conduction speaker comprises a main body, 11, a bearing piece, 12, a protection component, 21, a first accommodating cavity, 22, a second accommodating cavity, 23, a panel, 3, a bone conduction speaker, 4, a signal receiver, 5, a battery, 6, a microphone, 7, a lead and 8, and a buffer structure.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments and the corresponding drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that the descriptions of "first", "second", etc. used in the embodiments of the present invention are only for descriptive purposes, and should not be interpreted as indicating or implying any limitation to the number of technical features, and therefore, the features defined as "first", "second", etc. in the embodiments of the present invention may mean that at least one of the defined technical features is included.
In the description of the present application, it is to be understood that the orientations and positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like are the orientations and positions described based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation configuration and operation, and thus, should not be construed as limiting the present application.
The utility model discloses a bone conduction listening device utilizes bone conduction listening principle to realize receiving, conversion and propagation of sound signal, including but not limited to portable listening equipment such as earphone, audiphone, it include elasticity centre gripping main part 1 and balanced articulate in the first holding chamber 21 and the second holding chamber 22 at 1 both ends of main part, the inside fixed mounting in first holding chamber 21 has bone conduction speaker 3. It should be noted that the bone conduction speaker 3 described in the present embodiment is a device that converts a sound source signal (e.g., an electrical signal) into mechanical vibration and transmits the vibration to a human bone to enable a human to recognize sound through the bone, and the vibration mode is a mode that can convert an electrical sound signal into mechanical vibration, including but not limited to a voltage mode, an electromagnetic mode, and the like, and the bone conduction speaker 3 is also referred to as a bone conduction vibrator, a bone conduction transducer, a bone conduction vibrator or vibrator, a bone conduction horn, and the like in the art. The technical solution of the bone conduction listening device of the present invention will be described in detail with reference to the accompanying drawings.
Referring to the structural schematic diagram of the bone conduction listening device shown in fig. 1 in the first embodiment, the bone conduction listening device includes an elastic clamping main body 1, and a first accommodating cavity 21 and a second accommodating cavity 22 that are hung at two ends of the main body 1 in a balanced manner, and the first accommodating cavity 21 and the second accommodating cavity 22 at two ends of the clamping main body 1 are respectively of cylindrical structures with different sizes and compositions. In the first embodiment, the first receiving cavity 21 is configured as a flat cylinder cavity structure having an opening, the second receiving cavity 22 is configured as a long cylinder cavity structure formed by two semicylinders in a buckling manner, a plane where the opening of the first receiving cavity 21 is located and an arc-shaped side surface of the second receiving cavity 22 are oppositely arranged to form a clamping area, that is, a top surface of one cylinder receiving cavity is opposite to an arc-shaped side surface of the other receiving cavity. During actual assembly, after the components in the first accommodating cavity 21 are assembled, the openings of the components are sealed by the panel 23.
The main body 1 in this embodiment may be configured as an arc-shaped structure made of an elastic material, and has an initial state and a clamping state relative to the initial state, wherein the initial state refers to a natural state of the main body 1 of the bone conduction listening device under the condition of not being subjected to any external force, and the clamping state refers to an open or clamped state of the main body 1 of the bone conduction listening device under the condition of being subjected to an external force. Specifically, when the main part is at initial condition, the central line of first holding chamber 21 with the central line coincidence of second holding chamber 22 and with the central line of main part 1 is perpendicular, promptly the central line of first holding chamber 21 with contained angle between the central line of main part 1 is the right angle, simultaneously the central line of second holding chamber 22 with contained angle between the central line of main part 1 also is the right angle. When the main body 1 is in a clamping state, the first accommodating cavity 21 and the second accommodating cavity 22 swing with the main body 1 as a fulcrum, and simultaneously, center lines of the first accommodating cavity 21 and the second accommodating cavity 22 change to adapt to the outline of an object to be clamped, so that clamping force for clamping the object to be clamped is provided by means of deformation force of the first accommodating cavity 21 and the second accommodating cavity 22, different outline shapes of the object to be clamped are adapted by means of the swing amplitude of the main body 1, and the application range is expanded. The object to be held described in this embodiment includes, but is not limited to, a human auricle or a tissue similar to an auricle.
Referring to fig. 2, the main body 1 includes a carrier 11 for forming the shape of the auricle holding structure and a protection component 12 sleeved on the outer surface of the carrier 11, wherein the carrier 11 is made of hard elastic material and is generally configured as a C-shape or an arc structure corresponding to the contour of the object to be held. The protection component 12 may be made of a wear-resistant material, and may completely cover the carrier 11, or may be clamped on a side of the carrier 11 away from the clamped object to protect the main body 1 and reduce wear of the main body 1. In an embodiment, the bearing member 11 is completely and fixedly connected with the first accommodating cavity 21 and the second accommodating cavity 22 as a whole, and the protection member 12 and the first accommodating cavity 21 and the second accommodating cavity 22 are not completely fixed, so that the protection member 12 can move relative to the first accommodating cavity 21 and the second accommodating cavity 22, because the main body 1 is an elastic clamping structure, in a clamping state of the main body 1, the protection member 12 can move relative to the two accommodating cavities when the main body 1 is elastically deformed, without preventing the main body 1 from being deformed in a direction of opening the first accommodating cavity 21 and the second accommodating cavity 22, and can keep a state that the first accommodating cavity 21 and the second accommodating cavity 22 are worn in close contact with the clamped object through a resilience force of the main body 1. In order to improve the wearing comfort, the protection component 12 is made of soft materials such as silica gel or the contact surface of the bearing component 11 and the object to be clamped is coated or attached by soft materials such as silica gel.
In an embodiment, two ends of the bearing component 11 are respectively fixed at positions on the first receiving cavity 21 and the second receiving cavity 22 where the two straight lines are most distant from each other, at this time, the length of the main body 1 is longest, so that a relative swinging area of the two receiving cavities is ensured, the deformability of the main body 1 can be improved, the first receiving cavity 21 and the second receiving cavity 22 can be opened more easily when the main body is worn, and meanwhile, the resilience is better, so that a good clamping state is ensured. The fixed connection mode between main part 1 and two holding chambeies, include but not limited to: integral fixation, detachable fixation, adhesive fixation or fusion fixation, etc.
Referring to fig. 3, a schematic cross-sectional structure of a bone conduction listening device in a first embodiment shows an arrangement structure of internal components of the bone conduction listening device, the bone conduction speaker 3 is fixedly installed in the first accommodating cavity 21, the bone conduction speaker 3 is a part for converting an input electrical signal into mechanical vibration and outputting the vibration, specifically, the bone conduction speaker 3 is vibrated by the electrical signal, so that the electrical signal is converted into the mechanical vibration and transmitted to a human bone. The signal receiver 4 is fixedly installed in the second accommodating cavity 22 and used for receiving sound source signals, and the signal receiver 4 and the bone conduction speaker 3 are electrically connected through a conducting wire 7 penetrating through the main body 1. In practical applications, the signal receiver 4 includes, but is not limited to, a control module for controlling the bone conduction speaker 3 and a communication module for performing communication, the communication module receives a sound signal from another terminal or in the air by using a wireless communication method or a wired communication method, and the wireless communication method may use a short-range wireless communication technology such as bluetooth or a short-range magnetic induction method; the signal receiver 4 may further include an operation module that can adjust the volume and a storage module that can store information. The bone conduction listening device in the embodiment has an independent and complete listening system, so that the bone conduction listening device can be used by clamping one single ear alone, and can also be used by clamping and wearing the right ear and the left ear in combination with two accessories.
As can be seen from fig. 3, in actual assembly, the signal receiver 4 may be integrated into a circuit board structure, and the circuit board is integrated with the battery 5 for supplying power to the whole bone conduction listening device, because the signal receiver 4 integrated into the circuit board structure is relatively large in size, it is generally fixedly mounted in the second receiving cavity 22 of the large cylindrical cavity structure, and the bone conduction speaker 3 is fixedly mounted in the first receiving cavity 21 at a position close to the second receiving cavity 22.
Referring to the schematic structural diagram of the bone conduction listening device shown in fig. 4 in the second embodiment, the first receiving cavity 21 and the second receiving cavity 22 at two ends of the clamping structure body 1 are respectively cylinder structures with different sizes, wherein the first receiving cavity 21 is configured as a flat cylinder cavity structure with an opening, the second receiving cavity 22 is configured as a long cylinder cavity structure with an opening, and a surface where the opening of the first receiving cavity 21 is located and a surface where the opening of the second receiving cavity 22 is located are oppositely disposed to form a clamping area. During actual assembly, after the components in the first accommodating cavity 21 and the second accommodating cavity 22 are assembled, the openings of the components are sealed by the panel 23.
In this embodiment, the bone conduction speaker 3 is fixedly installed in at least one of the two accommodating cavities of the bone conduction listening device, and the embodiment of fixing the bone conduction speaker 3 in only one of the two accommodating cavities is similar to the embodiment of the bone conduction listening device in the first embodiment, and therefore, the details are not repeated herein. Fig. 5 of the present embodiment shows a situation that the bone conduction speakers 3 are disposed in the two accommodating cavities, that is, the bone conduction speakers 3 are disposed at the positions where the first accommodating cavity 21 and the second accommodating cavity 22 are opposite to each other, and when the bone conduction device is used, both the front side and the back side of the clamped object, that is, the auricle of the human body, can be in contact with the bone conduction speakers 3, so as to enhance the sound transmission effect.
Two states of the main body 1 of the bone conduction listening device will be described below by taking the second embodiment as an example, when the main body 1 is in the initial state, the panels 23 of the first accommodating cavity 21 and the second accommodating cavity 22 which are oppositely arranged are parallel and keep a fixed interval, and at this time, the panels 23 of the first accommodating cavity 21 and the second accommodating cavity 22 are both parallel to the center line of the main body 1; when the main body 1 is in the clamped state, the panels 23 of the first accommodating cavity 21 and the second accommodating cavity 22 form acute angles on two opposite sides of the surface where the center line of the main body 1 is located, specifically, when the thickness of the object to be clamped is small, the clamping force provided by the main body 1 is small, the amplitude of the swing of the first accommodating cavity 21 and the second accommodating cavity 22 with the main body 1 as a fulcrum is not large, and even when the thickness of the object to be clamped is small, such as a user with a small auricle thickness, and after the bone conduction hearing device is clamped on the auricle, the main body 1 rebounds to the initial state and is stabilized on the auricle of the human body; on the contrary, when the thickness of the object to be held is larger, the swing amplitude of the first accommodating cavity 21 and the second accommodating cavity 22 with the main body 1 as a fulcrum is correspondingly increased, so that the wearing comfort of different users can be satisfied.
In this embodiment, in order to restrain the vibration transmission of bone conduction speaker 3 to cause the tone quality loss on the casing of first holding chamber 21 with second holding chamber 22, the utility model discloses first holding chamber 21 with the position department of installing bone conduction speaker 3 on the inner wall of second holding chamber 22 sets up buffer structure 8, buffer structure 8 includes but is not limited to the material that has the function of restraining the vibration transmission such as sponge. It should be noted that the bone conduction speaker 3 is preferably installed on the opposite surfaces of the first receiving cavity 21 and the second receiving cavity 22, and the opening end of the cylindrical cavity structure is sealed by the panel 23, so that the panel 23 and the bone conduction speaker 3 are tightly assembled into a whole, and when in use, the vibration signal of the bone conduction speaker 3 is transmitted to the human bone through the panel 23. Since the panel 23 is in direct contact with the skin of the wearer, it is preferable that the panel 23 is made of a material that does not cause pain or discomfort when worn, including, but not limited to, synthetic resin, synthetic rubber, or the like.
Referring to fig. 6, a schematic cross-sectional view of a bone conduction listening device according to a third embodiment of the present invention shows an arrangement of internal components of the bone conduction listening device when the bone conduction listening device is used as a hearing aid. As shown in the drawings, when the bone conduction listening device is used as a hearing aid, the signal receiver 4 is further provided with a microphone 6, and when the bone conduction listening device of the present invention performs sound signal processing, the sound signal sources received by the bone conduction speaker 3 include: 1) receiving sound signals through a wired or wireless communication mode of the signal receiver 4, 2) receiving sound information through the microphone 6 of the signal receiver 4, collecting sound by the microphone 6, amplifying the sound, transmitting the sound as an electric signal to the bone conduction speaker 3 inside the first accommodating cavity 21 through the wire 7, converting the electric signal into mechanical vibration by the bone conduction speaker 3, and transmitting the sound information to a user by using a bone conduction sound transmission principle. When used by both ears, the user may use the listening device with the microphone 6 in one ear, use the listening device without the microphone 6 in the other ear, or use the listening devices with microphones 6 in both ears.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A bone conduction listening device is characterized by comprising an elastic clamping main body, a first containing cavity and a second containing cavity, wherein the first containing cavity and the second containing cavity are hung at two ends of the main body in a balanced mode, a bone conduction loudspeaker is fixedly installed in the first containing cavity, the main body has an initial state and a clamping state relative to the initial state, in the process of change of the state of the main body, the center line of the first containing cavity and the center line of the second containing cavity and the center line of the main body change to adapt to the outline of a clamped object while the main body swings around a fulcrum, the first containing cavity and the second containing cavity provide clamping force for clamping the clamped object, and sound vibration is transmitted to the clamped object through the bone conduction loudspeaker.
2. The bone conduction listening device of claim 1, wherein the main body comprises a supporting member and a protection member covering an outer surface of the supporting member, and the first receiving cavity and the second receiving cavity are respectively fixed at two ends of the supporting member.
3. The bone conduction listening device of claim 2, wherein the two ends of the bearing member are fixed to the first receiving cavity and the second receiving cavity at positions that are linearly spaced apart most.
4. The bone conduction listening device of any one of claims 1-3, wherein a signal receiver is fixedly mounted in the second receiving cavity, and the signal receiver and the bone conduction speaker are electrically connected through a wire passing through the main body.
5. The bone conduction listening device of claim 4, wherein the signal receiver in the second receiving cavity is integrated on a circuit board, and the circuit board is also connected with a battery for providing electrical energy to the bone conduction listening device.
6. The bone conduction listening device of claim 4, wherein the first receiving cavity and the second receiving cavity are respectively provided with a panel on opposite surfaces thereof, and the panels are directly contacted with the skin of the human body and transmit the vibration signal of the bone conduction listening device to the bones of the human body.
7. The bone conduction listening device of claim 6, wherein the panels of the first receiving cavity and the second receiving cavity are parallel to each other and maintain a fixed spacing when the main body is in the initial state.
8. The bone conduction listening device of claim 6, wherein the panels of the first and second receiving cavities are parallel to the plane of the center line of the main body when the main body is in the initial state; when the main body is in a clamping state, the panels of the first accommodating cavity and the second accommodating cavity respectively form acute angles on two opposite sides of the surface where the center line of the main body is located.
9. The bone conduction listening device of claim 4, wherein the first receiving cavity and the second receiving cavity have a buffer structure disposed on an inner wall thereof, and the bone conduction speaker is spaced apart from the housings of the first receiving cavity and the second receiving cavity by the buffer structure.
10. The bone conduction listening device of claim 4, wherein the signal receiver comprises a microphone electrically connected to the bone conduction speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120588827.4U CN214381390U (en) | 2021-03-23 | 2021-03-23 | Bone conduction listening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120588827.4U CN214381390U (en) | 2021-03-23 | 2021-03-23 | Bone conduction listening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214381390U true CN214381390U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120588827.4U Ceased CN214381390U (en) | 2021-03-23 | 2021-03-23 | Bone conduction listening device |
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| CN (1) | CN214381390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114339521A (en) * | 2021-12-31 | 2022-04-12 | 杭州声联智能科技有限公司 | Connecting piece, curved arm and bone conduction earphone |
-
2021
- 2021-03-23 CN CN202120588827.4U patent/CN214381390U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114339521A (en) * | 2021-12-31 | 2022-04-12 | 杭州声联智能科技有限公司 | Connecting piece, curved arm and bone conduction earphone |
| CN114339521B (en) * | 2021-12-31 | 2023-11-14 | 杭州声联智能科技有限公司 | Connecting piece, bent arm and bone conduction earphone for ear-clamping earphone |
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