CN107493532B

CN107493532B - Bone conduction earphone

Info

Publication number: CN107493532B
Application number: CN201710716285.2A
Authority: CN
Inventors: 李永坚; 张浩锋; 游芬; 齐心
Original assignee: Shenzhen Voxtech Co Ltd
Current assignee: Shenzhen Voxtech Co Ltd
Priority date: 2017-08-18
Filing date: 2017-08-18
Publication date: 2023-08-25
Anticipated expiration: 2037-08-18
Also published as: CN116980794A; CN107493532A

Abstract

An embodiment of the invention provides a bone conduction headset comprising an ear-hook assembly comprising a first housing, a second housing, and a connecting member connecting the first housing and the second housing, wherein the connecting member comprises a first elastic coating having a wire channel disposed therein for communicating the first housing and the second housing, the ear-hook assembly further comprising a first wire set extending from the first housing to the second housing via the wire channel, the wire channel having a radial dimension configured to allow the first wire set to move along the wire channel. By the mode, the invention can be convenient to assemble and wire.

Description

Bone conduction earphone

Technical Field

The invention relates to the field of earphones, in particular to a bone conduction earphone.

Background

Bone conduction is a sound conduction mode, namely, sound is converted into mechanical vibration with different frequencies, and sound waves are transmitted through skull bones, bone labyrinth, inner ear lymph fluid transmission, a screw, auditory nerves and auditory centers of people. The bone conduction earphone is closely attached to the bone by using a bone conduction technology, and sound waves are directly transmitted to the acoustic nerve through the bone. Therefore, the double ears can be opened, the tympanic membrane is not damaged, and the utility model is popular with consumers. However, the internal wires of the existing bone conduction earphone are fixed inside in an injection molding mode, so that later assembly and wiring are complex, and rapid production is not facilitated.

Disclosure of Invention

The invention mainly solves the technical problem of providing the bone conduction earphone, which can solve the problems of complex assembly and wiring of the traditional bone conduction earphone and the like.

To solve the above-mentioned technical problem, an embodiment of the present invention provides an ear-hook assembly, including a first housing, a second housing, and a connection member connecting the first housing and the second housing, wherein the connection member includes a first elastic coating layer, a wire channel for communicating the first housing and the second housing is provided in the first elastic coating layer, and the ear-hook assembly further includes a first wire group extending from the first housing to the second housing through the wire channel, and a radial dimension of the wire channel is set to allow the first wire group to move along the wire channel.

Compared with the prior art, the invention has the beneficial effects that: through setting up the lead wire passageway, can be earlier with first wire group one end connect the component in one of first casing or second casing, pass the lead wire passageway with the component in the other with first wire group other end again, so can reduce the equipment technology, improve production efficiency.

Drawings

Fig. 1 is a schematic view of a bone conduction headset of an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating an overall structure of a bone conduction headset according to an embodiment of the present invention;

fig. 3 is another schematic structural view of a ear mount assembly according to an embodiment of the bone conduction headset of the present invention;

FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;

fig. 5 is a schematic diagram showing a partially disassembled structure of a bone conduction headset according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of C-C of FIG. 5;

FIG. 7 is a schematic circuit diagram of an embodiment of a bone conduction headset according to the present invention;

fig. 8 is a schematic structural view of a fourth housing in an embodiment of the bone conduction headset of the present invention;

fig. 9 is an enlarged schematic view of the structure of the bone conduction earphone plug and jack according to the embodiment of the invention;

FIG. 10 is a schematic cross-sectional view of a plug and socket in an embodiment of a bone conduction headset according to the present invention;

FIG. 11 is a schematic view of a jack structure of an embodiment of a bone conduction headset according to the present invention;

FIG. 12 is a schematic view of a structure of a plug in an embodiment of a bone conduction headset according to the present invention;

FIG. 13 is a schematic cross-sectional structure of B-B of FIG. 9;

fig. 14 is a schematic view showing an exploded structure of another portion of the bone conduction headset according to the embodiment of the invention;

FIG. 15 is a schematic cross-sectional view of a portion of the structure of FIG. 14;

fig. 16 is a schematic diagram showing the structure of a control circuit assembly in an embodiment of the bone conduction headset according to the present invention;

fig. 17 is a schematic diagram of another structure of a control circuit assembly in an embodiment of the bone conduction headset of the invention.

Detailed Description

Referring to fig. 1 and 2, an embodiment of the bone conduction earphone according to the present invention includes an ear hook assembly 11, where the ear hook assembly 11 includes a first housing 111, a second housing 112, and a connection member 113 connecting the first housing 111 and the second housing 112, and the connection member 113 includes a first elastic wire 1131 having two ends connected to the first housing 111 and the second housing 112, respectively, and a first elastic coating 1132 coated on the first elastic wire 1131.

Generally, the bone conduction headphones further include a bone conduction speaker, a battery, a control circuit, and the like, for example, the bone conduction speaker is used to output sound to a user by vibration in a bone conduction manner. The battery is used for supplying power to each element of the bone conduction headset. The control circuit is used for controlling the bone conduction earphone to realize the functions of adjusting volume, switching on and off, playing audio, bluetooth communication and the like.

The ear-hook assembly 11 is generally used for a user to hang on his ear when wearing the bone conduction headset, so that the bone conduction headset can be worn on the user's ear more firmly. The ear-hook assembly 11 needs to have good resistance to compression and deformation so that it is not easy for the user to damage or deform the bone conduction headset during use.

In this embodiment, the connecting component 113 can directly contact the ear and support the bone conduction earphone through the root of the human ear, the connecting component 113 includes a first elastic wire 1131 and a first elastic coating 1132 coated on the first elastic wire 1131, and the first shell 111 and the second shell 112 are connected through the first elastic wire 1131, so that the bending performance and the structural stability of the bone conduction earphone can be effectively enhanced, and the earhook assembly 11 can effectively recover to the original shape when being bent, so that the earhook assembly is not easy to deform. In addition, the first elastic metal wire 1131 can solve the problem that the traditional bone conduction earphone is easy to damage caused by using plastic as the material of the ear-hook component. Optionally, the connecting member 113 may include a plurality of first elastic wires 1131, for example, a plurality of fine first elastic wires 1131 may be provided to further improve the bending reliability of the ear hook assembly 11, for example, 3 first elastic wires 1131 may be provided, and the diameter of each first elastic wire 1131 may be 0.3mm, where the materials of the 3 first elastic wires may be the same or partially the same or completely different, and of course, the diameters of the respective first elastic wires 1131 may be the same, partially the same or completely different.

In this embodiment, the first elastic wire 1131 may be an elemental metal, or may be an alloy material including a plurality of metal materials, such as spring steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, titanium-nickel alloy, magnesium-lithium alloy, chromium-molybdenum steel, or the like, or may be a composite material including a metal material and a non-metal material. Optionally, the first resilient wire 1131 is a titanium alloy wire, or at least is made of a titanium alloy material, such as a titanium alloy wire having a diameter of 0.8-1.5mm, optionally 1.0-1.25mm.

In this embodiment, the first elastic wire 1131 is externally coated with the first elastic coating 1132, and the first elastic coating 1132 is directly contacted with the ear, so that the user can wear the bone conduction headset comfortably due to the elastic action of the first elastic coating 1132. In addition, the first elastic coating 1132 can more strongly coat the first elastic metal wire 1131 due to the elastic effect, and can effectively coat the first elastic metal wire 1131 even after being bent for many times, so that the effectiveness of the bone conduction headset structure is ensured. Optionally, the first elastic coating 1132 is a silicone layer, and in other embodiments, the first elastic coating 1132 may be a latex layer or a rubber layer, or other elastic plastic layers, or a composite material layer containing silicone.

Optionally, the first housing 111 and the second housing 112 are respectively and fixedly connected to two ends of the first elastic metal wire 1131 in an injection molding manner, and the first elastic coating 1132 is fixedly coated on the first elastic metal wire 1131 in an injection molding manner. Optionally, the first housing 111 and the second housing 112 are plastic housings, and are fixed at two ends of the first elastic metal wire 1131 in an injection molding manner, and the first elastic coating 1132 is integrally formed and covers the first elastic metal wire 1131, so that the connection between the first housing 111, the second housing 112 and the first elastic metal wire 1131 is more stable, and the integral sense and the texture of the bone conduction earphone are stronger, so that the structure of the bone conduction earphone is more compact and lighter. In the present embodiment, the injection molding method may be one of injection molding, thermoplastic molding, compression molding, and the like, but is not limited thereto.

Referring to fig. 3 and 4, alternatively, the first elastic coating 1132 is formed by joining two sub-elastic coatings 1132a, 1132b of different colors, wherein the joining seam of the two sub-elastic coatings 1132a, 1132b is located on two opposite side surfaces 113a, 113b of the connecting member 113, respectively, wherein the projections of the joining seam on the same side surface, for example on the outer side surface 113a, are offset from each other. For example, during injection molding, at least two sets of dies are used to mold the two sub-elastic coating layers 1132a and 1132b of the first elastic coating layer 1132 respectively, so that two colors with different proportions, such as light gray and dark gray or other colors, can be formed, and the split seams are located on two opposite side surfaces 113a and 113b of the connecting part 113, and the projections on the same side surface are staggered, so that the visual effect of the bone conduction headset is better, and further, the coating effect is better due to the staggered coating of the first elastic metal wire 1131. Of course, the first elastic coating 1132 may be formed by combining two sub elastic coatings of the same color. By forming the two sub elastic coating layers 1132a, 1132b on the both side surfaces 113a, 113b of the connection member 113 by two injection molding, respectively, it is possible to improve that the element in the first elastic coating layer 1132, for example, the first elastic wire 1131 is easily displaced due to the existence of injection pressure during one injection molding or upper and lower split injection molding, and the molding quality of the connection member 113 is reduced. Of course, in other embodiments, the first resilient coating 1132 may be formed directly as one coating, or as a number of more than two bullet-shaped coatings.

In the present embodiment, the two side surfaces of the connecting member 113 include an inner side surface 113b and an outer side surface 113a which are disposed opposite to each other, and the ear hook assembly 11 is hung on the human ear when worn, and the side of the connecting member 113 facing the human head is the inner side surface 113b and the side facing the human ear is the outer side surface 113a.

With continued reference to fig. 3 and 4, alternatively, the split seams of the two sub elastic covers 1132a, 1132b are located on the inner side 113b and the outer side 113a of the connecting member 113, respectively, and the projection of the split seam located on the outer side 113a of the connecting member 113 is closer to the contact position of the connecting member 113 with the human ear than the projection of the split seam located on the inner side 113b of the connecting member 113. It will be appreciated that one of the split seams is located on the outer side 113a near the ear and the other split seam is located on the inner side 113b such that the outer side 113a displays almost the same color of bullet-shaped coating 1132a or 1132b, e.g., the outer side 113a displays almost a pale gray, making the bone conduction headset more comfortable and more aesthetically pleasing.

Alternatively, the split seams may be arranged such that the areas of the two sub elastic covers 1132a, 1132b on the same side, for example 113a or 113b, are different from each other. In other embodiments, the splice seam may be disposed such that the areas of the two child elastic covers 1132a, 1132b on the same side are the same or substantially the same.

Referring to fig. 2-4, alternatively, the split seam may be configured such that the relatively light colored bullet-shaped coating 1132a of the two sub-shaped elastic coatings 1132a, 1132b occupies a relatively large area on the outer side 113 a. That is, the light colored bullet-shaped coating 1132a is more on the outer side 113a and the dark colored bullet-shaped coating 1132b is more on the inner side 113b, thus making the surface of the connecting member 113 more coordinated, and enhancing the aesthetic property of the bone conduction headset while ensuring the structural property.

With continued reference to fig. 1, alternatively, the two ends of the first elastic wire 1131 are disposed in a flat shape and are respectively embedded in the first housing 111 and the second housing 112. That is, the first and second housings 111 and 112 are formed in an injection molding manner and fixed to two ends of the first elastic wire 1131, which are disposed in a flat shape, so that the contact area between the first elastic wire 1131 and the first and second housings 111 and 112 can be increased, and the first elastic wire 1131 and the first and second housings 111 and 112 are more stably fixed to each other. Optionally, the width of the two ends of the first elastic wire 1131 that are in a flat arrangement is greater than the width of the connecting part that connects the two ends that are in a flat arrangement, so that a limiting effect is achieved after molding, and the first elastic wire 1131 is prevented from being pulled out or falling off from the first housing 111 and the second housing 112. Optionally, two ends of the first elastic wire 1131 are disposed in a thread shape. When in forming, part of the shell can be formed in the threads to play a role in fixing. Of course, both ends of the first elastic wire 1131 may be respectively provided in a flat shape and a screw shape. In other embodiments, the two ends of the first elastic wire 1131 may be concave to form a concave portion, and when the first housing 111 and the second housing 112 are formed, part of the first housing and the second housing are located in the concave portion to play a role in fixing.

Referring to fig. 1 and 2, optionally, the first elastic coating 1132 further coats at least a portion of, e.g., all of, the outer surfaces of the first housing 111 and the second housing 112. That is, the first elastic coating 1132 coats the first elastic metal wire 1131, at least part of the outer surface of the first housing 111 and at least part of the outer surface of the second housing 112 in an injection molding manner, so that the texture and the unity of the bone conduction headset are stronger, and the presence of the first elastic coating 1132 can further protect the housing and the elements inside the housing, so that the bone conduction headset is more wear-resistant.

Referring to fig. 5 and 6, optionally, a through hole 1121 is formed in the second housing 112. Namely, the through hole 1121 penetrates the inner side surface and the outer side surface of the second housing 112. The first elastic coating 1132 covers the through hole 1121 and further forms a key receiving portion 1121a on a side above the through hole 1121 and away from the second housing 112 (i.e., away from an inner side surface of the second housing 112). The key accommodating portion 1121a is formed by covering the through hole 1121 with the first elastic coating 1132 during the injection molding process, and moisture, dust, etc. can be isolated from entering the second housing 112 due to the first elastic coating 1132 in the key accommodating portion 1121a. The ear hook assembly 11 further includes a key 118 and a switch assembly 119, wherein the key 118 is disposed within the key receiving portion 1121a. The switch assembly 119 is disposed on a side of the second housing 112 away from the first elastic coating 1132, i.e., an inner side surface of the second housing 112, and abuts against the first elastic coating 1132 under the key 118. Optionally, a boss 1121b is disposed in the key accommodating portion 1121a, and the key 118 is fixed on the boss 1121b, for example, by adhesion. In the present embodiment, since the first elastic coating 1132 is fixedly coated on the second housing 112 in an injection molding manner and covers the through hole 1121, a better waterproof effect is provided. Alternatively, the boss 1121b is formed integrally with the first elastic coating 1132 while the first elastic coating 1132 covers the through hole 1121.

In the present embodiment, the switch assembly 119 on the second housing 112 is mainly used for controlling a function switch of the bone conduction headset, such as playing and suspending music, receiving and hanging up voice, connecting a wireless signal to connect a mobile device such as bluetooth communication, or selecting an operation mode of the bone conduction headset, but is not limited thereto.

Referring to fig. 1, 2, 4 and 7, optionally, the interior of the first elastic coating 1132 is further provided with a lead channel 1134 for communicating the first housing 111 and the second housing 112, and the ear-hook assembly 11 further includes a first lead set 1133 extending from the first housing 111 to the second housing 112 via the lead channel 1134, the lead channel 1134 being radially sized to allow the first lead set 1133 to move along the lead channel 1134.

By providing the lead channel 1134, for example, during the later assembly, one end of the first wire set 1133 may be connected (for example, in an on-board manner) to an element in the second housing 112, for example, a bone conduction speaker, and then the other end of the first wire set 1133 passes through the lead channel 1134 to connect with an element in the first housing 111, for example, the battery assembly 13, the control circuit assembly 14 or the switching circuit board 15, etc., so that the assembly process can be reduced, and the problems of difficult wiring and adverse later maintenance caused by embedding the first wire set 1133 in the first elastic coating 1132 during the injection molding of the existing bone conduction earphone can be improved. Of course, in the later assembly, one end of the first wire set 1133 may be connected (e.g. in an on-board manner) to the components in the first housing 111, such as the battery assembly 13, the control circuit assembly 14 or the switching circuit board 15, and then the other end of the first wire set 1133 may be passed through the lead channel 1134 to connect to the components in the second housing 112, such as the bone conduction speaker.

In this embodiment, the molding method of the lead channel 1134 includes, for example, providing an assembly of the first housing 111 and the second housing 112 to which the first elastic wire 1131 is connected, further providing an additional wire (not shown) between the second housing 112 and the first housing 111 in a detachable manner, further forming the first elastic coating 1132 on the first elastic wire 1131, the additional wire, and part of the outer surfaces of the first housing 111 and the second housing 112 in an injection molding manner, and drawing the additional wire after molding to form the lead channel 1134. In other embodiments, for example, the first elastic coating 1132 is injection molded with a fusible material embedded therein, and the fusible material melts and flows out to form the lead channels 1134 when the first elastic coating 1132 is injection molded. For another example, the lead channels 1134 may be formed by forming the channels by threading after the first elastic coating 1132 is formed, and then expanding the channels by thermal melting to form the lead channels 1134.

With continued reference to fig. 1 and 4, in this embodiment, optionally, a lead channel 1134 is provided on the underside of the first resilient wire 1131 to be closer to the contact location of the connecting member 113 with the human ear than the first resilient wire 1131 is in use. In this embodiment, the first lead channel 1134 is disposed separately from the first resilient wire 1131. In other embodiments, the first lead channel 1134 may be provided in combination with the first resilient wire 1131, i.e., the first lead set 1133 may contact the first resilient wire 1131 within the first lead channel 1134. In this embodiment, the lead channel 1134 is disposed below the first elastic wire 1131, so that the lead channel 1134 is closer to the contact position between the connecting member 113 and the human ear than the first elastic wire 1131 is, and the first elastic coating 1132 close to the human ear is softer and more comfortable to wear due to the presence of the lead channel 1134. In other embodiments, of course, the first lead channel 1134 may also be disposed on the upper side of the first resilient wire 1131, with the first resilient wire 1131 being closer to the human ear in use.

Referring to fig. 1, 2 and 8, the ear-hook assembly 11 optionally includes a third housing 114 and a fourth housing 115. Wherein the third housing 114 cooperates with the first housing 111 to form a first receiving space 116 for receiving the battery assembly 13 or the control circuit assembly 14. The fourth housing 115 is mated with the second housing 112 to form a second receiving space 117 for receiving the bone conduction speaker. Optionally, the fourth housing 115 and the third housing 114 are plastic housings.

Optionally, the second housing 112 is connected to the fourth housing 115 through a first fastening component (not labeled), where the first fastening component includes a first fastening portion and a first fastening portion, the first fastening portion is disposed on the fourth housing 115, the first fastening portion is disposed on the second housing 112, and when the second housing 112 is mated with the fourth housing 115, the first fastening portion on the fourth housing 115 is fastened to the first fastening portion of the second housing 112, so as to fix the second housing 112 and the fourth housing 115 together. Optionally, the second housing 112 and the fourth housing 115 are connected by at least one set of first snap assemblies, e.g. 4 sets of first snap assemblies. Of course, the second casing 112 and the fourth casing 115 may be adhered by glue, or fixed by the first clamping assembly and the glue simultaneously, or connected and fixed by a fastener such as a screw.

Optionally, the third housing 114 is connected to the first housing 111 through a second fastening assembly (not labeled), where the second fastening assembly includes a second fastening portion and a second fastening portion, the second fastening portion is disposed on the third housing 114, the second fastening portion is disposed on the first housing 111, and when the first housing 111 is mated with the third housing 114, the second fastening portion of the third housing 114 is fastened to the second fastening portion of the first housing 111, so as to fix the first housing 111 and the third housing 114 together.

In the present embodiment, the third housing 114 of the ear-hook assembly 11 cooperates with the first housing 111 to form a first accommodating space 116 for accommodating the battery assembly 13 or the control circuit assembly 14, the fourth housing 115 cooperates with the second housing 112 to form a second accommodating space 117 for accommodating the bone conduction speaker, and the first wire set 1133 is movable through the wire guide channel 1134 for electrically connecting the bone conduction speaker with the battery assembly 13 or the control circuit assembly 14. In the present embodiment, the battery assembly 13 includes, for example, a battery that supplies power to other components of the bone conduction headset through a battery management circuit, such as a charging circuit, an over-current protection circuit, an over-voltage protection circuit, and the like. For example, the battery is a rechargeable battery, such as a lithium battery. Referring to fig. 7, optionally, the bone conduction earphone further includes, for example, a switching circuit board 15 disposed in the first accommodating space 116, where the battery assembly 14 is divided into a plurality of wire bonding pads by the switching circuit board 15, so as to correspondingly connect the two bone conduction speakers, the control circuit assembly 14, the microphone, and the switch assembly 119 of the bone conduction earphone, where the related wires of the elements are connected to the wire bonding pads and conducted in the manner of fig. 7, so as to facilitate connection and assembly. For example, the battery assembly 14 is connected to the patch circuit board 15 through two wire bond pads of the positive and negative electrodes, and the patch circuit board 15 is split by 10 wire bond pads to connect other components of the bone conduction headset.

Referring to fig. 1 and 2, optionally, a first sub-accommodating space 116a is disposed in the first housing 111, a second sub-accommodating space 116b is disposed in the third housing 114, and the first sub-accommodating space 116a is formed together with the third housing 114 and the first housing 111 when the third housing 114 is mated with the first housing 116a, for example, the first sub-accommodating space 116 is fixedly connected by a first fastening component. Wherein the second sub-receiving space 116b has a larger volume than the first sub-receiving space 116a. For example, the volume of the second sub-receiving space 116b is 2-5 times, for example, 3-4 times, for example, 3.2 times, or for example, 2.5 times, the volume of the first sub-receiving space 116a.

In assembling the battery assembly 13 or the control circuit assembly 14, for example, the battery assembly 13 or the control circuit assembly 14 is placed in the first sub-accommodating space 116a, for example, the battery is adhered in the first sub-accommodating space 116a by a glue material or a double-sided tape, or the control circuit assembly 14 is fixed in the first sub-accommodating space 116a by a clamping structure, so that most of the battery assembly 13 or the control circuit assembly 14 is exposed, the processes of assembling and wiring are convenient, and the like, then the third shell 114 is covered with the first shell 111 by a second clamping assembly, and the first sub-accommodating space 116a and the second sub-accommodating space 116b form the first accommodating space 116, thereby solving the problem of complex assembling procedures caused by the fact that the traditional bone conduction earphone needs to assemble and accommodate the battery or the control circuit board in the shell integrally formed with the ear-hook and further use the silicon glue tape to be adhered on the outer part of the battery control circuit board for coating.

Referring to fig. 2 and 8, optionally, the fourth housing 115 is disposed in a prismatic shape, wherein a strip-shaped sound guiding hole 1151 is disposed on at least one side surface of the fourth housing 115, wherein a length direction of the strip-shaped sound guiding hole 1151 is parallel or substantially parallel to a bottom surface of the fourth housing 115, and a length of the strip-shaped sound guiding hole 1151 is not less than two thirds of a width of a side surface thereof. In this embodiment, the bottom surface 115e of the bar-shaped sound guiding hole, which is relatively parallel, refers to a plane defined by an opening edge of a face of the fourth housing 115 facing the face of the human body when worn.

In general, the bone conduction speaker transmits sound to the surrounding environment during vibration, and other people in the environment can hear the sound of the speaker in addition to the wearer, for example, the vibration of the bone conduction speaker causes the vibration of the air in the second accommodating space 117 and the vibration of the fourth housing 115, etc., so that a sound leakage phenomenon occurs, which affects the sound quality of the bone conduction speaker. The sound guiding hole 1151 guides and propagates the sound wave in the second accommodating space 117 to the outside of the space, and interferes with the sound wave of the leakage sound to propagate in the air, thereby reducing the amplitude of the sound wave of the leakage sound and reducing the leakage sound.

With continued reference to fig. 8, in order to further improve the sound leakage, the present embodiment improves the problem of the conventional bone conduction earphone that the sound leakage is still serious by providing the strip-shaped sound guiding hole 1151 on at least one side of the fourth housing 115 and properly providing the size and the direction thereof. Further, the length direction of the strip-shaped sound guiding hole 1151 is arranged in parallel with the bottom surface of the fourth housing 115, which not only ensures the beauty, but also ensures the uniformity of the intensity of the parallel guided sound waves, thereby ensuring the interference effect. In the present embodiment, the length of the strip-shaped sound guiding hole 1151 is not less than two-thirds of the width of the side face where it is located, so that the sound waves in the second accommodating space 117 can be effectively guided. Alternatively, the length of the bar-shaped sound introducing hole 1151 is three-fourths of the width of the side on which it is located. Of course, in other embodiments, at least two strip-shaped sound guiding holes 1151 are disposed in parallel on at least one side of the fourth housing 115, for example, two parallel strip-shaped sound guiding holes 1151 are disposed on at least one side and parallel to the bottom surface 115e of the fourth housing 115.

Alternatively, the fourth housing 115 is not provided with a bar-shaped sound introducing hole 1151 on the side 115d near the human ear when the bone conduction headset is in use. Of course, in other embodiments, a sound guiding hole may be provided on the side 115d of the fourth housing 115, which is close to the ear when the bone conduction headset is in use, and may be a point sound guiding hole or a bar sound guiding hole 1151.

With continued reference to fig. 2 and 8, optionally, the fourth housing 115 is disposed in a quadrangular prism shape, in which a strip-shaped sound guiding hole 1151 is disposed on two side surfaces 115a and 115c of the fourth housing 115 disposed adjacent to the connection member 113, a strip-shaped sound guiding hole 1151 is also disposed on a side surface 115b of the remaining two side surfaces 115b and 115d, which is far from the human ear when the bone conduction headset is in use, and a strip-shaped sound guiding hole 1151 is not disposed on a side surface 115b of the remaining two side surfaces 115b and 115d, which is near to the human ear when the bone conduction headset is in use. That is, three strip-shaped sound leading holes 1151 are formed in the three side surfaces 115a, 115b and 115c, and the strip-shaped sound leading holes 1151 are not formed in the side surface 115d, which is close to the human ear, of the bone conduction headset when the bone conduction headset is in use, so that the phenomenon of sound leakage can be further reduced, and the tone quality of the bone conduction headset is ensured.

In the present embodiment, the fourth housing 115 is disposed in a quadrangular prism shape, and includes, for example, a regular quadrangular prism and a quadrangular prism-like shape. For example, specifically, the length of either one of the two side surfaces 115a, 115c of the fourth housing 115 disposed adjacent to the connecting member 113 is larger than the length of either one of the remaining two side surfaces 115b, 115d, and further, the lengths of the two side surfaces 115a, 115c of the fourth housing 115 disposed adjacent to the connecting member 113 are not equal or equal. In other embodiments, the fourth housing 115 is disposed in a quadrangular shape, and the lengths of the four sides thereof may be equal.

In this embodiment, the angle between the two sides 115a, 115c of the fourth housing 115, which are arranged adjacent to the connecting member 113, is optionally 90 ° -150 °, optionally 100 ° -130 °, optionally 110 ° -120 °.

Optionally, a waterproof and dustproof filter screen, such as a waterproof and breathable film (not shown), covering the strip-shaped sound-guiding holes 1151 is further disposed in the fourth housing 115. The waterproof dustproof filter screen is arranged, so that dust outside the bone conduction earphone can be prevented, and water enters the waterproof bone conduction earphone to damage the bone conduction loudspeaker.

In this embodiment, a microphone hole (not shown) is respectively disposed on the second housing 112 and the fourth housing 115, specifically, the first microphone hole is disposed at a connection portion of the remaining two side surfaces 115b and 115d of the fourth housing 115, which are not directly connected to the connecting member 113, and the second microphone hole is disposed at an outer side surface of the second housing 112 and is close to a connection portion of the fourth housing 115 and the connecting member 113. Through set up two microphones in two microphone holes that stagger the setting, can strengthen the speech input quality, and play effectual effect of making an uproar that falls, improve speech input's definition from this.

Referring to fig. 2 and 9, in the present embodiment, the number of ear-hanging components 11 is two, and the bone conduction headset further includes a rear-hanging component 12. The rear suspension assembly 12 includes a second elastic wire 121, a second elastic coating 122 coated on the second elastic wire 121, and connectors 123 disposed at both ends of the second elastic wire 121. The plugging portions 123 are respectively plugged and matched with the first shells 111 of the two ear hook assemblies 11, and are fixedly connected. Alternatively, the connector 123 is fixed to both ends of the second elastic wire 121 by injection molding, so that the connector 123 can be more firmly fixed to both ends of the second elastic wire 121. Alternatively, the second elastic wire 121 may be a metal element, or may be an alloy material including various metal materials, such as spring steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, titanium nickel alloy, magnesium lithium alloy, chrome molybdenum steel, or the like, or may be a composite material including a metal material and a non-metal material. In this embodiment, the second elastic wire 121 is a titanium alloy wire, or at least is made of a titanium alloy material. In this embodiment, the second elastic coating 122 is a silicone layer. In other embodiments, the second elastic coating 122 may also be a rubber or latex layer, or a composite layer including silicone.

The plug-in part 123 of the rear hanging component 12 is matched with the first shell 111 of the two ear hanging components 11 in a plug-in mode, so that the problems of large earphone size and the like caused by the fact that an existing bone conduction earphone adopts a screw and other fixing modes are solved, the structure is simplified, the weight of the bone conduction earphone is reduced, later wiring is facilitated, and cost can be reduced.

Referring to fig. 9 and 10, optionally, an end portion of the first housing 111 is provided with a socket 1111 for allowing the insertion of the socket 123 and an opening 1112 communicating the socket 1111 with the outside in a direction perpendicular to the insertion direction of the socket 123, to allow glue or mounting a stopper (not shown) to be applied into the socket 1111 from the outside through the opening 1112, so that the socket 123 is fixed in the socket 1111 by the glue or the stopper. In this embodiment, the opening 1112 is located in the first sub-accommodating space 116 a. In other embodiments, the end of the first housing 111 is provided with a socket 1111 for allowing the socket 123 to be inserted, the socket 123 has a concave portion, and an elastic protrusion is disposed in the socket 1111, and when the socket 123 is inserted into the socket 1111, the elastic protrusion is snapped into the concave portion to fix the socket 123 and the socket 1111 in a matching manner. For example, when the connector 123 is inserted into the connector hole 1111, the elastic protruding portion is pressed first and then is caught in the concave portion by the elastic restoring force. Alternatively, the depth of insertion of the connector 123 into the connector insertion hole 1111 is 6-11mm, and alternatively 8-10mm.

With continued reference to fig. 9 and 10, the side wall of the connector 123 may optionally be provided with a slot 1231. The slot 1231 is exposed or partially exposed through the aperture 1112 and is configured to receive glue or a detent. Optionally, at least one side wall of the connector 123 is provided with a slot 1231, for example, both side walls are provided with slots 1231. In other embodiments, the glue and the locking member may be used simultaneously, for example, the locking member is used to fix the device, and then the glue is applied to fix the device further. In this embodiment, the locking member is, for example, a wedge or a pin, or a fixing member having a certain elasticity is inserted into the slot 1231 to perform an interference fit.

Referring to fig. 2, 9 and 10, alternatively, the socket 123 includes a first socket segment 123a connected to the second elastic wire 121 and a second socket segment 123b connected to the first socket segment 123a and disposed away from the second elastic wire 121. The socket 1111 is divided into a first hole section 1111a for receiving the first socket section 123a and a second hole section 1111b for receiving the second socket section 123b along the insertion direction of the socket section 123. Wherein the first hole section 1111a is sized to allow the second connector section 123b to move freely within the first hole section 1111a in the insertion direction and to provide a tight fit between the first connector section 123a and the first hole section 1111 a. Through the cooperation respectively of two sections of inserting section and both ends hole section fixed, can make inserting portion 123 fix in first casing 111 more firmly, strengthen bone conduction earphone's structural stability.

With continued reference to fig. 9 and 10, optionally, a slot 1231 is further provided in a sidewall of the second connector segment 123 b. The opening 1112 communicates with the second bore section 1111b of the socket 1111. In the present embodiment, the second connector segment 123b sequentially passes through the first hole segment 1111a and the second hole segment 1111b at the connector 123, so that the first connector segment 123a is tightly matched with the first hole segment 1111a, and the slot 1231 of the second connector segment 123b is exposed through the opening 1112 for receiving glue or a locking member. By the tight fit of the first connector section 123a with the first aperture section 1111a and the further fit fixation of the second connector aperture 1111 with the second aperture section 1111b, the rear hook can be effectively fixedly connected with the ear hook. In other embodiments, slots 1231 may be provided on the side walls of the first connector segment 123 a. The opening 1112 communicates with the second bore section 1111b of the socket 1111.

Optionally, the second hole section 1111b is sized such that there is a tight fit between the second socket section 123b and the second hole section 1111b. So through the tight fit of first jack section 123a and first hole section 1111a, the tight fit of second jack 1111 and second hole section 1111b and glue or the fastener of applying fix, further hang back and ear-hang fixed connection effectively, and can simplify the structure, make bone conduction earphone lightweight. Of course, in other embodiments, the first connector segment 123a and the first aperture segment 1111a are a tight fit, while the second connector segment 123b and the second aperture segment 1111b may be other types of fixed fits, such as a snap fit.

Referring to fig. 11, alternatively, contact surfaces of both sides of the first socket section 123a with the first hole section 1111a are different in shape. The first socket segment 123a has different shapes on both sides, and correspondingly, the first hole segment 1111a is different from the two sides 1111a1 and 1111a2 of the first socket segment 123 a. For example, both sides of the first hole section 1111a are arc-shaped, the radius of curvature of the inner side 1111a2 is larger than that of the outer side 1111a1, that is, the change of arc of the inner side 1111a2 is relatively slow, and the change of arc of the outer side 1111a1 is relatively large, and both sides of the first socket section 123a are correspondingly arranged. Of course, in other embodiments, both sides of the first hole section 1111a are disposed in an arc shape, and the radius of curvature of the inner side 1111a2 is smaller than that of the outer side 1111a1, that is, the curvature of the inner side 1111a2 varies relatively more, and the curvature of the outer side 1111a1 varies relatively less. The two sides of the first hole section 1111a are close to the human head when worn, i.e. inner side 1111a2, and far from the human head, i.e. outer side 1111a1. The contact surfaces of the two sides of the first plugging section 123a and the first hole section 1111a are different in shape, so that the first plugging section 123a cannot be reversely plugged, and the two plugging parts 123 hung at the back cannot be mixed and plugged, thereby having an effective foolproof effect and being convenient to assemble.

Referring to fig. 9 and 10, alternatively, the bottom surfaces of the first and second socket segments 123a and 123b are arranged in a stepped shape, a first wedge-shaped transition segment 123c is disposed at the junction of the first and second socket segments 123a and 123b, and a second wedge-shaped transition segment 1111c corresponding to the first wedge-shaped transition segment 123c is disposed at the junction of the first and second hole segments 1111a and 1111 b.

In this embodiment, the bottom surfaces of the first and second connector segments 123a and 123b are surfaces near the root of the human ear when worn. The top surface is far away from the root of the human ear.

In this embodiment, the thickness of the first plugging section 123a is larger than that of the second plugging section 123b, that is, the first plugging section 123a is in a stepped shape, a thickness difference exists at the joint of the first plugging section and the second plugging section, and a first wedge-shaped transition section 123c is provided at the joint of the first hole section 1111a and the second hole section 1111b, a second wedge-shaped transition section 1111c corresponding to the first wedge-shaped transition section 123c is provided at the joint of the first hole section 1111a and the second hole section 1111b, and when the first plugging section 123a and the second plugging section 123b are sequentially inserted into the first hole section 1111a and the second hole section 1111b, the first wedge-shaped transition section 123c and the second wedge-shaped transition section 1111c are abutted against each other, so that the second plugging section 123b and the first plugging section 123a can be conveniently inserted, and the functions of buffer transition, limiting and further fixing are achieved.

Referring to fig. 9, 12 and 13, the rear suspension assembly 12 may further include a second wire set 124 covered by a second elastic coating 122, wherein both ends of the second wire set 124 are exposed from the second elastic coating 122, and a buried groove 1232 for receiving the exposed portion of the second wire set 124 is provided at the top surface of the connector 123. In the present embodiment, the second wire set 124 is used to connect elements in the two ear-hook assemblies 11, such as the battery and the control circuit assembly 14. The provision of the buried wire groove 1232 can effectively arrange and fix the second wire group 124 on the one hand and reduce the volume on the other hand. In other embodiments, the buried groove 1232 may be omitted, and the second wire set 124 may be fixed by other means, such as glue or double-sided adhesive, or two rows of bumps (not shown) are disposed on the top surface of the connector 123, and the second wire set 124 may be accommodated between the two rows of bumps.

Referring to fig. 2, optionally, the bone conduction earphone further includes a battery assembly 13 and a control circuit assembly 14, wherein the battery assembly 13 is disposed in the first accommodating space 116 of one of the two ear-hook assemblies 11, and the control circuit assembly 14 is disposed in the first accommodating space 116 of the other of the two ear-hook assemblies 11.

Referring to fig. 14 and 15, optionally, a third housing 114 of the ear hook assembly 11 for accommodating the control circuit assembly 14 is provided with a key hole 1141 and a receiving slot 1142 in communication with the key hole 1141, the control circuit assembly 14 includes a circuit board 141, a switch 142 fixed on the circuit board 141, a waterproof liner plate 143, and a key 144, wherein the key 144 is disposed in the key hole 1141 and exposed through the key hole 1141, the waterproof liner plate 143 includes a liner plate body 143a and a third elastic coating 143b coated on the liner plate body 143a in an injection molding manner, the waterproof liner plate 143 is disposed in the receiving slot 1142 and the third elastic coating 143b elastically abuts against a side wall of the receiving slot 1142, and the key 144 and the switch 142 are disposed on two sides of the waterproof liner plate 143 and respectively abut against the waterproof liner plate 143. In the present embodiment, the third elastic coating layer 143b covers one side surface of the liner body 143a and the edge of the liner body 143a, and of course, covers at least a part of the edge or all of the edge. In other embodiments, the third elastic coating 143b may entirely cover the liner body 143a, i.e., cover both sides of the liner body 143 a.

In the present embodiment, the switch 142 on the circuit board 141 is mainly used for on/off, volume adjustment, or other switching functions.

With continued reference to fig. 14 and 15, the waterproof liner plate 143 is coated with the third elastic coating 143b in an injection molding manner, so that the third elastic coating 143b is not easy to fall off from the waterproof liner plate 143, and the compactness between the third elastic coating 143b and the waterproof liner plate 143a is better, so that the waterproof performance of the conventional bone conduction earphone is improved, and the waterproof effectiveness is ensured. In this embodiment, the liner body 143a may be plastic, and the third elastic coating 143b may be silica gel, latex, rubber, or a composite.

Optionally, a positioning groove 1431 for accommodating the switch 142 is provided on a side of the waterproof liner 143 adjacent to the switch 142.

In the present embodiment, the method for assembling the control circuit assembly 14 includes, for example, sequentially disposing the key 144 and the waterproof liner 143 on the third housing 114, exposing the key 144 through the key hole 1141, and abutting the circuit board 141 with the waterproof liner 143 through the switch 142 and the positioning slot 1431 of the waterproof liner 143. By providing the positioning groove 1431, the switch 142 can be accurately positioned and matched with the key 144, so that the switch 142 can be effectively operated by the key 144.

Referring to fig. 16 and 17, optionally, the control circuit assembly 14 further includes an antenna 145 disposed on the circuit board 141, the antenna 145 including an antenna body 145a disposed spaced apart from the circuit board 141, and a ground portion 145b and a feeding portion 145c connecting the antenna body 145a and the circuit board 141, wherein the antenna body 145a is bent and extended from the ground portion 145b to one side of the circuit board 141 when viewed in a direction perpendicular to the circuit board 141. In the present embodiment, the antenna body 145a is bent to one side of the circuit board 141, and the length of the antenna 145 can be increased in a limited space, thereby increasing radiation efficiency. In this embodiment, the antenna 145 is typically used for wireless communication, such as bluetooth communication. In other embodiments, wiFi communication, cellular data communication, NFC near field communication, and the like may also be used.

Alternatively, the antenna main body 145a includes a parallel portion 145a1 and a bending portion 145a2, the width of the parallel portion 145a1 is larger than the width of the bending portion 145a2 when viewed in a direction perpendicular to the circuit board 141, one end of the parallel portion 145a1 is connected to the grounding portion 145b and the feeding portion 145c, the other end is connected to the bending portion 145a2, the parallel portion 145a1 and the bending portion 145a2 are arranged in a step shape at a connection portion, and the bending portion 145a2 is bent from the connection portion to one side of the circuit board 141.

Optionally, the control circuit assembly 14 further includes a grounding part 146 disposed on the circuit board 141, wherein the antenna body 145a is bent and extended toward a side of the circuit board 141 remote from the grounding part 146. In this embodiment, the grounding element 146 is a switch 142 on a USB interface and/or circuit, or other grounding element 146. In general, the grounding component 146, such as a USB interface, may cause a certain interference to the antenna 145, and in this embodiment, the antenna main body 145a is bent and extended toward a side of the circuit board 141 away from the grounding component 146, so that the interference of the grounding component 146 to the antenna 145 signal can be improved in a limited space, and the signal quality can be ensured. In this embodiment, the USB interface may be used to transmit data between the bone conduction headset and an external device, such as a mobile terminal, and may also be used to charge the battery assembly 13.

Alternatively, the width of the antenna body 145a is gradually smaller in the extending direction of the antenna body 145 a. For example, specifically, the width of the parallel portion 145a1 is constant from one end to the other end, and the width of the bent portion 145a2 gradually becomes smaller in the extending direction. Of course, in other embodiments, the width of the parallel portion 145a1 may gradually decrease from one end to the other end, but the width of the other end of the parallel portion 145a1 is still greater than the width of the bent portion 145a 2.

Alternatively, the bending angle of the antenna body 145a becomes gradually larger in the extending direction of the antenna body 145 a. Such as the bending angle, is gradually increased, generally to be away from the ground member 146, such as USB, etc., so as to ensure the radiation efficiency of the antenna 145. Optionally, the bending portion 145a2 has a bending foot 145a3 at an end far from the parallel portion 145a1, where the bending angle is the largest, so as to meet the requirement of the size of the antenna 145 on the one hand, and to improve the radiation efficiency on the other hand.

The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. A bone conduction headset comprising an ear-hook assembly comprising a first housing, a second housing, and a connecting member connecting the first housing and the second housing, wherein the connecting member comprises a first elastic coating having a wire channel disposed therein for communicating the first housing and the second housing, the ear-hook assembly further comprising a first wire set extending from the first housing to the second housing via the wire channel, the wire channel being radially sized to allow the first wire set to move along the wire channel; the connecting part further comprises a first elastic metal wire, two ends of the first elastic metal wire are respectively connected with the first shell and the second shell, and the first elastic coating is fixedly coated on the first elastic metal wire in an injection molding mode.

2. The bone conduction headset of claim 1, wherein the first elastic coating covers at least a portion of the outer surfaces of the first and second housings.

3. The bone conduction headset of claim 2, wherein the lead channel is disposed on an underside of the first resilient wire to be closer to a contact location of the connection member with a human ear than the first resilient wire when in use.

4. The bone conduction headset of claim 3, wherein the first elastic wire has two ends arranged in a flat shape and is embedded in the first and second housings, respectively.

5. The bone conduction headset of claim 4, wherein the first and second housings are fixedly connected to both ends of the first elastic wire in an injection molding manner; and/or the first elastic metal wire is made of at least a titanium alloy material.

6. The bone conduction headset of claim 5, wherein the ear-hook assembly includes a third housing and a fourth housing, wherein the third housing cooperates with the first housing to form a first receiving space for receiving a battery assembly or a control circuit assembly, and the fourth housing cooperates with the second housing to form a second receiving space for receiving a bone conduction speaker, and the first wire set is configured to electrically connect the bone conduction speaker with the battery assembly or the control circuit assembly.

7. The bone conduction headset of claim 6, wherein a key opening and a receiving groove communicated with the key opening are formed in the third housing for receiving the control circuit assembly, the control circuit assembly comprises a circuit board, a switch fixed on the circuit board, a waterproof lining plate and a key, wherein the key is arranged in the key opening and exposed through the key opening, the waterproof lining plate comprises a lining plate main body and a third elastic coating coated on the lining plate main body in an injection molding mode, the waterproof lining plate is arranged in the receiving groove and elastically abuts against the side wall of the receiving groove, and the key and the switch are respectively arranged on two sides of the waterproof lining plate and respectively abut against the waterproof lining plate.

8. The bone conduction headset of claim 2, wherein a through hole is formed in the second housing, the first elastic coating covers the through hole, and a key receiving portion is further formed on a side above the through hole and away from the second housing, the ear hook assembly further comprises a key and a switch assembly, wherein the key is disposed in the key receiving portion, and the switch assembly is disposed on a side of the second housing away from the first elastic coating and abuts against the first elastic coating below the key.

9. The bone conduction headset of claim 2, wherein the number of ear-hook components is two, the bone conduction headset further comprises a rear-hook component, the rear-hook component comprises a second elastic metal wire, a second elastic coating coated on the second elastic metal wire, and plug-in parts arranged at two ends of the second elastic metal wire, and the plug-in parts are respectively matched with and fixedly connected with the first shells of the two ear-hook components.

10. The bone conduction headset according to claim 9, wherein an end portion of the first housing is provided with a socket for allowing the insertion of the socket and an opening communicating the socket with the outside in a direction perpendicular to an insertion direction of the socket, to allow glue or mounting of a stopper to be applied from the outside into the socket through the opening, so that the socket is fixed in the socket by the glue or the stopper.