Sound guide reverberation assembly driven by rear loudspeaker of Bluetooth earphone

Abstract

The utility model discloses a sound guide reverberation assembly driven by a rear loudspeaker of a Bluetooth earphone. The sound guide reverberation assembly is characterized in that a sound guide reverberation assembly penetrating through a whole shell and a through sound transmission channel are arranged at the front position of a Bluetooth earphone body; a sealing cavity is arranged below the rear position of the mainboard and between the sound guide reverberation assembly and the back shell, and the loudspeaker is located in the sealing cavity. When a user wears the sound guide reverberation assembly, the annularly arranged sound outlet holes of the sound guide reverberation assembly surround an ear canal opening, the sound transmission channel right faces the ear canal opening, and the loudspeaker is located at the auricle above the ear canal opening. When the loudspeaker works, the arrangement of the sealing cavity forces original sound waves emitted by the loudspeaker to only flow out from the sound outlet hole, and the original sound waves can be repeatedly reflected, propagated and flow in the sound transmission channel and are mixed with flowing air in the sound transmission channel, so that the original sound waves are repeatedly superposed to form reverberation sound waves, the sound quality is better, and better experience feeling is brought to a user; and through the sound transmission channel, the ventilation effect of the auditory meatus opening is good, and meanwhile, a user can hear external sound.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bluetooth headset, concretely relates to a back position loudspeaker driven sound guide and reverberation assembly of bluetooth headset. BACKGROUND

[0002] Bluetooth headset, wireless connection cell -phone, act on the input or output of audio, it is the small -size electronic equipment of modern life with the person carrying along with the sound, brings the convenience to the user. Bluetooth headset wears, the position of facing the user ear canal mouth is the front position, and the position of facing the ear canal mouth top or the pinna outside is the back position.

[0003] The bluetooth headset on the market currently, internally be equipped with loudspeaker and mainboard, wherein the loudspeaker all set up on the front position of mainboard and with mainboard electric connection, namely the user wears bluetooth headset, its loudspeaker faces the ear canal mouth of user, and the mainboard controls the loudspeaker to sound, and the sound wave of loudspeaker is directly into the ear canal mouth, and the user can hear the output audio frequency;But the setting mode of this front position loudspeaker has the defect:

[0004] 1, the user wears, and the loudspeaker faces the ear canal mouth of user, like this requires the face cover must be all -round cover in the ear canal mouth, and the original sound wave of loudspeaker directly into the ear canal mouth, cannot make the original sound wave form reverberation sound wave;

[0005] 2, the face cover of bluetooth headset all -round cover in the ear canal mouth, makes its sound insulation effect with the outside world is good, and the sound wave can all enter the ear canal, but like this makes the ear canal mouth not breathable, and the air is not ventilated, and the ear canal mouth is prone to breed bacteria and appear red / swelling after wearing for a long time, and the serious can cause eardrum inflammation, produces tinnitus etc.

[0006] 3, now many users like to wear earphone when walking, walks while listening, but like this is there is great risk, for example, when crossing the road, because the sound insulation effect with the outside world is good, the sound (such as vehicle horn sound etc.) of outside world is difficult to enter the ear canal again through earphone, thereby cannot avoid the danger and cause great security risk.

[0007] The utility model is new development on this basis. SUMMARY

[0008] The utility model provides a back position loudspeaker driven sound guide and reverberation assembly of bluetooth headset to solve the defect in the background art.

[0009] The utility model adopts the following schemes.

[0010] The application discloses a back-position loudspeaker-driven sound guide and reverberation assembly of a Bluetooth earphone.

[0011] The sound guide and reverberation assembly comprises an audio output transmission member, a sealing connecting member and a sound guide upper cover.

[0012] The audio output transmission member is a hollow cylinder, the lower end surface of the hollow cylinder is provided with a circular arc-shaped ring mouth, the back surface of the circular arc-shaped ring mouth is provided with a whole-circle protruding platform surface, the platform surface is provided with a plurality of ring-shaped and uniformly arranged audio output holes penetrating through the circular arc-shaped ring mouth, the outer end surface of the audio output hole is located on the circular arc surface of the circular arc-shaped ring mouth and is synchronously provided with a circular arc shape, and the upper end of the hollow cylinder is provided with an inwardly inclined clamping position.

[0013] The sealing connecting member is a cylindrical connecting groove, the lower end of the connecting groove is provided with a baffle, one side of the baffle is provided with a C-shaped opening, the opposite sides of the C-shaped opening are respectively provided with corresponding through holes, and the inner wall of the connecting groove is provided with a whole-circle protruding upward step.

[0014] The sound guide upper cover is a hollow cylinder, the upper end surface of the hollow cylinder is provided with a circular arc-shaped ring mouth, the back surface of the circular arc-shaped ring mouth is provided with a whole-circle protruding clamping position edge, and the inner wall of the lower end of the hollow cylinder is provided with a protruding downward step.

[0015] The lower end of the hollow cylinder of the sound guide upper cover penetrates through the circular through hole of the front position of the main plate and extends into the connecting groove of the sealing connecting member, the lower bottom edge of the sound guide upper cover is located on the step of the inner wall of the connecting groove, the charging column of the main plate penetrates through the through hole of the baffle of the sealing connecting member, the upper end of the hollow cylinder of the audio output transmission member is inserted into the connecting groove of the sealing connecting member until the clamping position is located on the step of the sound guide upper cover, the baffle and the platform surface are provided with a certain interval distance, and the audio output transmission member, the sealing connecting member and the sound guide upper cover are connected into a whole sound guide and reverberation assembly.

[0016] The shell comprises a face cover and a back shell, and the front position of the face cover and the back shell is respectively provided with a corresponding circular through hole II which is opposite to the circular through hole I arranged on the front position of the mainboard; the mainboard is assembled in the back shell of the shell; the clamping position edge of the sound guide upper cover abuts against the inner side edge of the circular through hole II of the face cover, and the circular arc-shaped ring opening II is located at the circular through hole II of the face cover; the outer side edge of the lower end surface of the platform surface of the sound outlet conducting element abuts against the inner side edge of the circular through hole II of the back shell, and the sound outlet hole on the circular arc-shaped ring opening I is located at the circular through hole II of the back shell; the sound guide reverberation assembly forms a sealed cavity with the space between the back shell and the lower rear position of the mainboard, the loudspeaker is located in the sealed cavity, and the edge of the loudspeaker is clamped into the C-shaped opening of the sealing connecting piece and tightly abuts against the C-shaped opening.

[0017] As a kind of preferred: the mainboard is provided with predetermined working procedure and electronic component.

[0018] As a kind of preferred: the back shell is provided with two small through holes, and the through hole of the baffle is opposite, and the charging column on the mainboard is contacted with the charging electrode in the charging bin to charge; the back shell is provided with a clamping column in the back shell, and the clamping column is used to fix the mainboard when the mainboard is installed; the back shell and the face cover are provided with corresponding clamping positions in the back shell and the face cover, and the clamping positions are used to fix the back shell and the face cover.

[0019] As a kind of preferred: the shell is connected with the battery end through the soft rubber ear hook, the battery is arranged in the battery end, and the battery is electrically connected with the mainboard through the connecting line in the soft rubber ear hook, so that the battery provides power supply for the mainboard.

[0020] As a kind of preferred: one side of the face cover of the shell is provided with an air inlet hole, and both sides are respectively provided with a wind pickup hole.

[0021] The beneficial effects of the present application are: the sound guide reverberation assembly penetrating through the entire shell and the sound transmission channel are arranged on the front position of the Bluetooth earphone body; the sealed cavity is arranged between the back shell, the sound guide reverberation assembly and the lower rear position of the mainboard, and the loudspeaker is located in the sealed cavity; when the user wears the Bluetooth earphone, the annular sound outlet holes of the sound guide reverberation assembly are arranged around the ear canal opening, the sound transmission channel is opposite to the ear canal opening, and the loudspeaker is located above the auricle; when working, the sealed cavity forces the original sound wave emitted by the loudspeaker to flow out from the sound outlet hole, and the original sound wave can flow in the sound transmission channel multiple times, mix with the flowing air in the sound transmission channel, and form reverberation sound wave multiple times, so that the sound quality is better, and the user has a better experience; the sound transmission channel penetrating through the entire shell makes the ear canal opening have good ventilation effect, and the user can hear the sound from the outside; the sound guide reverberation assembly has simple structure, and all components can be molded and mass-produced, and the installation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a back shell face diagram of the Bluetooth earphone body of the present application;

[0023] Figure 2 It is the overall explosion view of the Bluetooth earphone body of the utility model;

[0024] Figure 3 It is the connection schematic view of the sound guide and reverberation assembly of the utility model;

[0025] Figure 4 It is the sectional view of the utility model;

[0026] Figure 5 It is another angle explosion view of the sound guide and reverberation assembly of the utility model;

[0027] Figure 6 It is the corresponding view of the sound guide and reverberation assembly and the shell of the utility model;

[0028] Figure 7 It is the cover surface schematic view of the Bluetooth earphone body of the utility model.

[0029] Among them: 100-Bluetooth earphone body, 100-1-front position, 100-2-rear position, 103-sealing cavity, 10-shell, 11-cover, 111-air inlet hole, 112-microphone pickup hole, 12-back shell, c-round hole two, 11-c-cover round hole two, 12-c-back shell round hole two, d-small hole, 121-clamping column, 122-clamping position, 20-mainboard, 20-1-front position, 20-2-rear position, a-round hole two, 23-charging column, 30-sound guide and reverberation assembly, 31-sound output transmission element, 311-hollow cylinder one, 3111-clamping position one, 312-arc-shaped ring one, 313-platform surface, 314-sound output hole, 32-sealing connecting piece, 321-connection groove, 3211-step one, 322-baffle, 3221-C-shaped port, c-via hole, 323-void, 33-sound guide upper cover, 331-hollow cylinder two, 3311-step two, 332-arc-shaped ring two, 333-clamping position edge, 34-sound transmission channel, 40-loudspeaker, 50-soft rubber ear hook, 60-battery end, 61-battery, → sound wave transmission direction. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] 2. It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0032] 3. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance, or implying the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] 4. In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing", "installation" and the like should be broadly understood, for example, "fixing" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Referring to Figures 1-7 A back position loudspeaker driven sound guide and reverberation assembly of a Bluetooth earphone, comprising a Bluetooth earphone body (100), a mainboard (20), a sound guide and reverberation assembly (30), and a loudspeaker (40) are arranged in a shell (10) of the Bluetooth earphone body (100); the sound guide and reverberation assembly (30) passes through a round through hole (a) of a front position (20-1) of the mainboard (20) and is installed through the front position (100-1) of the Bluetooth earphone body (100); the sound guide and reverberation assembly (30) is internally hollow and has a sound transmission channel (34) penetrating through the Bluetooth earphone body (100), wherein the sound transmission channel (34) located on one side of a back shell (12) of the shell (10) is provided with a plurality of sound outlet holes (314) arranged in a ring; a space between the sound guide and reverberation assembly (30) and a back position (20-2) below the mainboard (20) and the back shell (12) forms a sealed cavity (103); the loudspeaker (40) is located in the sealed cavity (103) and is electrically connected with the mainboard (20); when worn, the sound outlet holes (314) of the sound guide and reverberation assembly (30) located in the front position (100-1) of the Bluetooth earphone body (100) surround the ear canal opening, the sound transmission channel (34) in the middle is opposite to the ear canal opening, and the loudspeaker (40) located in the back position (100-2) of the Bluetooth earphone body (100) is located at the auricle above the ear canal opening.

[0035] The utility model discloses a connection of guide sound reverberation subassembly (30);

[0036] The guide sound reverberation subassembly (30) includes sound emission transmission (31), sealed connecting piece (32), guide sound upper cover (33);

[0037] The lower end of the cylindrical body of guide sound upper cover (33) passes through the through hole (a) of the front position (20-1) of mainboard (20), and extends into the connecting groove (321) of sealed connecting piece (32), and the lower bottom edge of guide sound upper cover (33) is supported on the step one (3211) of the inner wall of connecting groove (321), wherein the charging column (23) on mainboard (20) passes through the via hole (b) of the baffle (322) of sealed connecting piece (32);The upper end of the hollow cylindrical body one (311) of sound emission transmission (31) is inserted into the connecting groove (321) of sealed connecting piece (32) until the stop one (3111) is supported on the step two (3311) of guide sound upper cover (33), so that the baffle (322) and the platform surface (313) are left with the empty space (323) with a certain interval distance;Sound emission transmission (31), sealed connecting piece (32), guide sound upper cover (33) are connected into the guide sound reverberation subassembly (30) of whole, wherein the hollow cylindrical body one (311) of sound emission transmission (31), the connecting groove (321) of sealed connecting piece (32), the hollow interior of the hollow cylindrical body two (331) of guide sound upper cover (33) are communicated, and the sound transmission channel (34) is formed.

[0038] The utility model discloses the formation of sealed cavity (101) in the utility model:

[0039] The housing (10) comprises a face cover (11) and a back shell (12), and the front position of the face cover (11) and the back shell (12) is provided with a corresponding circular through hole one (c) which is opposite to a circular through hole two (a) arranged on the front position (20-1) of the main plate (20); the main plate (20) is assembled in the back shell (12) of the housing (10); the clamping position edge (333) of the sound guide upper cover (33) abuts against the inner side edge of the circular through hole two (11-c) of the face cover (11), and the circular arc shaped ring mouth two (332) is located at the circular through hole two (11-c) of the face cover (11); the outer side edge of the lower end face of the platform face (313) of the sound outlet conducting element (31) abuts against the inner side edge of the circular through hole two (12-a) of the back shell (12), and the sound outlet hole (314) on the circular arc shaped ring mouth one (312) is located at the circular through hole two (12-a) of the back shell (12); the charging column (20) of the main plate (20) passes through the through hole (c) of the baffle (322) of the sealing connecting element (32) and extends into the small through hole (d) of the back shell; so that the space below the rear position (20-2) of the main plate (20) is blocked upward by the main plate (20), blocked rightward by the sound guide reverberation assembly (30), blocked downward by the back shell (12) and blocked leftward by the left inner wall of the back shell (12), so that the space forms a sealed cavity (101), and the loudspeaker is arranged below the rear position (20-2) of the main plate (20) and located in the sealed cavity (101).

[0040] The working principle of the utility model is as follows:

[0041] 1, the original sound wave emitted by the loudspeaker:

[0042] After the predetermined working program arranged on the main plate receives information, the loudspeaker is controlled to emit sound:

[0043] The loudspeaker is located in the sealed cavity, so that the original sound wave emitted by the loudspeaker can only propagate and flow in the sealed cavity; firstly, the original sound wave propagates to the front direction, i.e. the back shell direction, is blocked by the back shell, propagates to the opposite direction, i.e. the main plate and baffle direction, is also blocked by the main plate and baffle, is blocked rightward by the sound guide reverberation assembly, and is blocked leftward by the inner wall of the back shell, so that the sound wave can only propagate to the left empty position and finally flows out from the sound outlet hole of the platform face below the left empty position;

[0044] 2, the formation of reverberation sound wave:

[0045] When the Bluetooth earphone body is worn, the ring-shaped sound outlet holes arranged at the front position are located at the ear canal opening, and the sound transmission channel is opposite to the ear canal opening;

[0046] The original sound waves emitted by the loudspeaker flow out from the sound outlet, the outer end surface of the sound outlet of the sound guide and reverberation assembly and the circular-arc annular opening are synchronously arranged in a circular-arc shape; the multiple original sound waves emitted by the multiple sound outlets arranged in a ring shape are emitted and propagated in multiple directions around, and when reaching the corresponding symmetrical surface, the multiple original sound waves are reflected, the original sound waves can be reflected multiple times in the sound transmission channel, and the original sound waves are mixed with the circulating air in the sound transmission channel, the original sound waves are superimposed multiple times in the air, so that the original sound waves form reverberation sound waves, the reverberation sound waves enter the ear canal, and the user hears the sound; meanwhile, the circular-arc annular opening is uniformly arranged in a ring shape, so that the original sound waves are uniformly emitted, which is more conducive to improving the sound quality and the listening experience; the sound transmission channel is hollow, so that the ear canal is more breathable, meanwhile, the user can hear the sound outside, and the reception and discrimination of the user to the external situation are improved.

[0047] Reasons for the superposition of sound waves in the air:

[0048] The superposition function of the sound waves is utilized; in the same medium, two or more sound wave signals exist and propagate in the air, each column of waves can maintain its own propagation law without interfering with each other, the vibration physical quantity of each point in the overlapping area of the waves is equal to the vector sum of the physical quantities caused by each column of waves at the point, so that the superposition of the sound waves is formed, thereby a new wave form is generated, the multiple sound outlets arranged in a ring shape of the sound outlet guide can generate multiple sound waves, the multiple sound waves are mixed and superimposed with the air in the sound transmission channel, and mixed sound waves are formed. This is a known physical principle, and the present application does not need to be stated again.

[0049] The above description is only the preferred embodiment of the present application, and the above specific embodiments are not a limitation on the present application. Within the technical concept of the present application, various modifications and changes can occur, and any modification, change or equivalent replacement made by those skilled in the art according to the above description belongs to the scope of the present application.

Claims

1. A back-positioned bit-loudspeaker-driven sound-guiding reverberation assembly of a Bluetooth earphone, comprising a Bluetooth earphone body (100), a mainboard (20), a sound-guiding reverberation assembly (30), and a loudspeaker (40) being arranged in a shell (10) of the Bluetooth earphone body (100); characterized in that: The sound guide and reverberation assembly (30) passes through the round through hole a of the front position (20-1) of the main plate (20), penetrates the front position (100-1) of the Bluetooth earphone body (100), and is provided with an internally hollow and penetrating sound transmission channel (34), wherein the sound transmission channel (34) located at the side of the back shell (12) of the shell (10) is provided with a ring-shaped and uniformly arranged sound outlet hole (314); the sound guide and reverberation assembly (30) and the space between the rear position (20-2) of the main plate (20) and the back shell (12) form a sealed cavity (103); the loudspeaker (40) is located in the sealed cavity (103) and is electrically connected with the main plate (20); when worn, the sound outlet hole (314) of the sound guide and reverberation assembly (30) located at the front position (100-1) of the Bluetooth earphone body (100) surrounds the ear canal opening, the middle sound transmission channel (34) is opposite to the ear canal opening, and the loudspeaker (40) located at the rear position (100-2) in the Bluetooth earphone body (100) is located at the auricle above the ear canal opening; The sound guide and reverberation assembly (30) comprises a sound outlet guide (31), a sealing connecting piece (32) and a sound guide upper cover (33); The sound outlet guide (31) is an internally hollow hollow cylinder one (311), the lower end face of the hollow cylinder one (311) is provided as a circular arc ring one (312), the back face close to the circular arc ring one (312) is provided with a whole circle of protruding platform face (313), the platform face (313) is provided with a plurality of ring-shaped and uniformly arranged sound outlet holes (314) penetrating the circular arc ring one (312), the outer end face of the sound outlet hole (314) is located on the circular arc face of the circular arc ring one (312) and is provided as a circular arc at the same time; the upper end of the hollow cylinder one (311) is provided with an inwardly inclined clamping position one (3111); The sealing connecting piece (32) is an internally hollow cylindrical connecting groove (321), the lower end of the connecting groove (321) is provided with a baffle (322), one side of the baffle (322) is provided as a C-shaped port (3221); the C-shaped port (3221) is provided with corresponding through holes (b) on both sides; the inner wall of the connecting groove (321) is provided with a whole circle of protruding upward step one (3211); The sound guide upper cover (33) is an internally hollow hollow cylinder two (331), the upper end face of the hollow cylinder two (331) is provided as a circular arc ring two (332), and the back face close to the circular arc ring two (332) is provided with a whole circle of protruding clamping position edge (333); the lower end of the sound guide upper cover (33) is provided with a protruding downward step two (3311) in the cylinder. The hollow cylinder two (331) of the sound guide upper cover (33) has a circular through hole one (a) at the lower end, which passes through the front position (20-1) of the main plate (20) and extends into the connecting groove (321) of the sealing connector (32). The lower bottom edge of the sound guide upper cover (33) is supported on the step one (3211) of the inner wall of the connecting groove (321), wherein the charging column (23) of the main plate (20) passes through the through hole (b) of the baffle (322) of the sealing connector (32); the upper end of the hollow cylinder one (311) of the sound outlet conductor (31) is inserted into the connecting groove (321) of the sealing connector (32) until the stop one (3111) abuts against the step two (3311) of the sound guide upper cover (33); the baffle (322) and the platform surface (313) have a space (323) with a certain interval distance; the sound guide reverberation assembly (30) is formed by connecting the sound outlet conductor (31), the sealing connector (32) and the sound guide upper cover (33) into an integral whole, wherein the hollow interiors of the hollow cylinder one (311), the connecting groove (321) and the hollow cylinder two (331) are in communication to form a sound transmission channel (34); The outer shell (10) includes a face cover (11) and a back shell (12), and the front position of the face cover (11) and the back shell (12) is provided with a corresponding circular through hole two (c) which is opposite to the circular through hole one (a) provided on the front position (20-1) of the main plate (20); the main plate (20) is assembled in the back shell (12) of the outer shell (10); the stop edge (333) of the sound guide upper cover (33) abuts against the inner side edge of the circular through hole two (11-c) of the face cover (11), and the circular arc ring two (332) is located at the circular through hole two (11-c) of the face cover (11); the outer side edge of the lower end surface of the platform surface (313) of the sound outlet conductor (31) abuts against the inner side edge of the circular through hole two (12-c) of the back shell (12), and the sound outlet hole (314) on the circular arc ring one (312) is located at the circular through hole two (12-c) of the back shell (12); the sound guide reverberation assembly (30) and the space between the back shell (12) and the rear position (20-2) of the main plate (20) form a sealed cavity (101), and the loudspeaker (40) is located in the sealed cavity (101), and the edge of the loudspeaker (40) is clamped into the C-shaped port (3221) of the sealing connector (32) and tightly abuts against it.

2. The back position loudspeaker driven sound guiding and reverberation assembly of a Bluetooth earphone according to claim 1, characterized in that: The main plate (20) is provided with a predetermined working program and electronic components.

3. The back position loudspeaker driven sound guiding and reverberation assembly of a Bluetooth earphone according to claim 1, characterized in that: The back shell (12) is provided with two small through holes (d) which are opposite to the through hole (b) of the baffle and act on the charging column (23) of the main plate (20) which extends out; the back shell (12) is provided with a clamping column (121) which acts on the main plate (20) to fix the main plate (20) during installation; the back shell (12) and the face cover (11) are provided with corresponding stops (122) which act on the back shell (12) and the face cover (11) to be clamped and fixed.

4. The back position loudspeaker driven sound guiding and reverberation assembly of a Bluetooth earphone according to claim 1, characterized in that: The shell (10) is connected with a battery end (60) through a soft rubber ear hook (50), the battery end (60) is internally provided with a battery (61), and the battery (61) is electrically connected with the mainboard (20) through a connecting wire in the soft rubber ear hook (50).

5. The back-ported vented loudspeaker driver of a Bluetooth earphone according to claim 4, wherein: The side of the face cover of the shell is provided with an air inlet hole, and the two sides are respectively provided with a wind pickup hole.

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