CN212909946U - Bone conduction earphone based on shape memory alloy - Google Patents

Abstract

The utility model discloses a bone conduction earphone based on shape memory alloy, include: the bone line, the left sound box, the right sound box, the left headset, the right headset and the connecting part; two ends of the skeleton line are respectively connected with the top end of the left sound box and the top end of the right sound box; the bottom end of the left sound box is connected with the left earphone through a connecting part, and the bottom end of the right sound box is connected with the right earphone through a connecting part; the bone line is a metal bobbin of shape memory alloy. The sound box shells outside the left sound box and the right sound box are in mirror symmetry structures; the left sound box and the right sound box are internally provided with independent power supply lines and power supplies. The high-quality TiNi alloy wire is used as the bone line to replace the conventional structure that a circuit is added with a steel wire and silica gel is wrapped in the traditional earphone, so that the overall weight of the earphone is reduced, and the wearing comfort is improved; and because the deformation recovery characteristic of the shape memory alloy, the bone conduction earphone can still recover the original shape after being repeatedly twisted or extruded, thereby prolonging the service life of the whole earphone.

Description

Bone conduction earphone based on shape memory alloy

Technical Field

The utility model relates to an earphone sound equipment, the more specifically osteoacusis earphone based on shape memory alloy that says so.

Background

Bone conduction is a sound conduction mode, that is, sound is converted into mechanical vibration with different frequencies, and sound waves are transmitted through the skull, the bone labyrinth, the lymph fluid of the inner ear, the spiral organ, the auditory nerve and the auditory center of a human body. Compared with a classical sound conduction mode of generating sound waves through a vibrating diaphragm, the bone conduction mode omits a plurality of sound wave transmission steps, can realize clear sound restoration in a noisy environment, and does not influence other people due to the fact that the sound waves are diffused in the air.

The existing bone conduction earphone needs to communicate the circuits of the left and right ears, and the line part structure of the left and right earphone intermediate connections is in the form of adding steel wires by the circuits and coating silica gel on the outside, so that the overall weight of the earphone is too heavy, and the wearing comfort is affected. Meanwhile, as the form of coating the steel wire and the circuit by the silica gel is adopted, the connecting part is fragile in line structure, and the internal circuit is easily damaged by bending after long-term use, so that the normal use function of the earphone is influenced, and the earphone is seriously even scrapped.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a bone conduction earphone based on shape memory alloy.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a shape memory alloy based bone conduction headset comprising: the bone line, the left sound box, the right sound box, the left headset, the right headset and the connecting part; two ends of the skeleton line are respectively connected with the top end of the left sound box and the top end of the right sound box; the bottom end of the left sound box is connected with the left earphone through a connecting part, and the bottom end of the right sound box is connected with the right earphone through a connecting part; the bone line is a metal wire spool made of shape memory alloy.

The sound box comprises a left sound box, a right sound box, a left sound box and a right sound box, wherein sound box shells outside the left sound box and the right sound box are in mirror symmetry structures; and independent power supply lines and power supplies are arranged in the left sound box and the right sound box.

The further technical scheme is that the power supply circuit is a flexible circuit board, and the flexible circuit board is integrated with a sound track, a control end and a signal transceiving end.

The power supply is an electric storage lithium battery and is used for repeated charging and discharging.

The further technical scheme is that the repeated charging times of the electric power storage lithium battery are 10000-15000 times.

Its further technical scheme does, the connecting portion outside is equipped with the connecting portion shell, the inside interconnecting link that is equipped with of connecting portion is used for electric connection left audio amplifier and left headset to and be used for electric connection right audio amplifier and right headset.

The further technical proposal is that the connecting part shell and the sound box shell are in an integrated structure/fixed connection structure; the connecting part shell and the sound box shell are of a composite layered structure with a plastic inner layer and a laminated silica gel outer layer.

The further technical scheme is that the metal bobbin is made of TiNi alloy wires, and the radial diameter of the metal bobbin is 2.5mm-3 mm.

Compared with the prior art, the utility model beneficial effect be: the utility model provides a bone conduction earphone based on shape memory alloy, adopt high-quality TiNi alloy silk as the bone line, replace the conventional structure that the circuit that traditional earphone adopted adds the steel wire and wraps up silica gel, reduce earphone whole weight, improve and wear the comfort level; due to the deformation recovery characteristic of the shape memory alloy, the bone conduction earphone can still recover the original shape after being repeatedly twisted or extruded, so that the service life of the whole earphone is prolonged; based on the technical characteristics of the sound supply systems of the left ear and the right ear, the left sound box corresponds to the left earphone, the right sound box corresponds to the right earphone, the sound supply flexibility is improved, and when the headset on the corresponding side is damaged, the damaged part can be conveniently and accurately positioned; the utility model provides a bone conduction earphone simple structure, be convenient for wear, long service life, be applicable to the environment of buckling of harsh deformation and do not damage, have extensive practical value.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is a schematic view of the overall structure of the bone conduction earphone based on the shape memory alloy of the present invention;

fig. 2 is a side view of the bone conduction earphone in a non-deformed state;

fig. 3 is a side view of the structure of fig. 2 in a deformed state.

Reference numerals

1. Bone line; 2. a left speaker; 3. a left headset; 4. a right speaker; 5. a right ear microphone; 6. a connecting portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Referring to fig. 1, the present embodiment provides a bone conduction earphone based on shape memory alloy, including: the loudspeaker comprises a bone line 1, a left sound box 2, a right sound box 4, a left earphone 3, a right earphone 5 and a connecting part 6; two ends of the bone line 1 are respectively connected with the top end of the left sound box 2 and the top end of the right sound box 4; the bottom end of the left sound box 2 is connected with the left earphone 3 through a connecting part 6, and the bottom end of the right sound box 4 is connected with the right earphone 5 through a connecting part 6.

Referring to fig. 2-3, a bone line 1 is a metal bobbin made of shape memory alloy, fig. 2 shows that the shape of the bone conduction earphone is substantially the same as that of a conventional earphone in a non-deformed state, fig. 3 shows that the bone line 1 is bent by an external force at a certain angle in a deformed state, the bending angle is determined by the magnitude of the external force, and the bending duration is also determined by the external force application duration. However, when the external force is removed, the bone conduction earphone in the state shown in fig. 3 is restored to the state shown in fig. 2, and the shape memory alloy automatically restores the bone line 1 to the normal use state, so that there is no need to worry about the damage caused by bending. Different from the structure that this part of conventional earphone adopts outer cladding silica gel, inlayer to be equipped with circuit and steel wire more, the bone conduction earphone based on shape memory alloy of this embodiment, the bone line part adopts shape memory alloy, no longer additionally increases the silica gel layer, and the durable degree also is showing and is improving when earphone weight reduces.

The sound box shells outside the left sound box 2 and the right sound box 4 are in a mirror symmetry structure; the left sound box 2 and the right sound box 4 are both internally provided with independent power supply lines and power supplies.

The power supply circuit is a flexible circuit board which is integrated with a sound track, a control end and a signal transceiving end. The flexible circuit board integrated level is high, and whole light in weight further reduces the weight of earphone, increases and wears the comfort level.

The power supply is a storage lithium battery and is used for repeated charging and discharging. The number of times of repeated charging of the storage lithium battery is 10000-15000 times. Compared with a conventional disposable battery, the rechargeable battery is more energy-saving, meanwhile, the lower portion of the sound box shell is provided with the charging port for charging the storage battery, and besides the conventional socket power supply, the rechargeable battery can also be used for supplying power to the bone conduction earphone at any time, so that the trouble that the earphone cannot be used due to no power supply when going out is avoided.

The outside of connecting portion 6 is equipped with the connecting portion shell, and the inside interconnecting link that is equipped with of connecting portion 6 for left audio amplifier 2 of electric connection and left headset 3, and be used for right audio amplifier 4 of electric connection and right headset 5.

The connecting part shell and the sound box shell are of an integrally formed structure/fixed connection structure; the connecting part shell and the sound box shell are of a composite layered structure with a plastic inner layer and a laminated silica gel outer layer.

The metal bobbin of the bone line 1 is TiNi alloy wire, TiNi alloy is widely applied to the field of glasses manufacturing as a glasses frame, and the TiNi alloy can be assembled on the nose bridge and the ear of the glasses frame to enable people to feel comfortable and resist wear. TiNi alloys have been widely used to change the fashion world for eyeglasses because of their flexibility. The bone conduction earphone bone wire 1 made of the TiNi alloy super-elastic alloy has large deformation capability, and the common earphone back neck connecting part support structure cannot realize large deformation and rebound. The diameter of the metal wire spool is 2.5mm-3mm in the radial direction. The shape memory alloy in the range has high flexibility under the condition of proper weight, and is beneficial to increasing the wearing experience.

Compared with the prior art, the bone conduction earphone based on the shape memory alloy adopts the high-quality TiNi alloy wire as the bone line, replaces the conventional structure that a circuit adds steel wires and wraps silica gel, which is adopted by the traditional earphone, reduces the whole weight of the earphone, and improves the wearing comfort; due to the deformation recovery characteristic of the shape memory alloy, the bone conduction earphone can still recover the original shape after being repeatedly twisted or extruded, so that the service life of the whole earphone is prolonged; based on the technical characteristics of the sound supply systems of the left ear and the right ear, the left sound box corresponds to the left earphone, the right sound box corresponds to the right earphone, the sound supply flexibility is improved, and when the headset on the corresponding side is damaged, the damaged part can be conveniently and accurately positioned; the utility model provides a bone conduction earphone simple structure, be convenient for wear, long service life, be applicable to the environment of buckling of harsh deformation and do not damage, have extensive practical value.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims (8)

1. A shape memory alloy based bone conduction headset, comprising: the bone line, the left sound box, the right sound box, the left headset, the right headset and the connecting part; two ends of the skeleton line are respectively connected with the top end of the left sound box and the top end of the right sound box; the bottom end of the left sound box is connected with the left earphone through a connecting part, and the bottom end of the right sound box is connected with the right earphone through a connecting part; the bone line is a metal wire spool made of shape memory alloy.

2. The bone conduction earphone according to claim 1, wherein the enclosure of the left and right speakers is a mirror-symmetric structure; and independent power supply lines and power supplies are arranged in the left sound box and the right sound box.

3. The shape memory alloy-based bone conduction headset of claim 2, wherein the power supply line is a flexible circuit board that incorporates a track, a control terminal, and a signal transceiver terminal.

4. The shape memory alloy-based bone conduction headset of claim 2, wherein the power source is a lithium storage battery for repeated charge and discharge use.

5. The bone conduction earphone based on shape memory alloy as claimed in claim 4, wherein the rechargeable lithium battery has a recharging frequency of 10000-15000 times.

6. A bone conduction earphone according to claim 2, wherein the connection portion is externally provided with a connection portion housing, and the connection portion is internally provided with a connection circuit for electrically connecting the left speaker and the left earphone and for electrically connecting the right speaker and the right earphone.

7. The bone conduction earphone based on shape memory alloy of claim 6, wherein the connection part housing and the sound box housing are of an integrally formed structure/fixed connection structure; the connecting part shell and the sound box shell are of a composite layered structure with a plastic inner layer and a laminated silica gel outer layer.

8. The shape memory alloy based bone conduction earpiece of claim 1, wherein the metal bobbin is a TiNi alloy wire, the metal bobbin having a radial diameter of 2.5mm-3 mm.

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