Bone conduction loudspeaker and bone conduction earphone

Abstract

The invention discloses a bone conduction loudspeaker and a bone conduction earphone, the bone conduction loudspeaker comprises a shell, a driving mechanism, a support and a cover body, an accommodating space with an opening at one side is defined on the shell, and the driving mechanism is accommodated in the accommodating space and is used for generating a vibration signal; the support is arranged on the side, facing the opening, of the driving mechanism, connected with the driving mechanism and used for transmitting vibration signals, at least one receiving groove is formed in the support, and the cover is arranged on the side, away from the driving mechanism, of the support and buckled with the shell at the opening. The cover body is used for further transmitting the vibration signals transmitted by the support to the human skin, at least one supporting rib corresponding to the receiving grooves is arranged on the side, facing the support, of the cover body, and when the cover body and the shell are buckled, each supporting rib extends into the corresponding receiving groove and abuts against the bottom wall of the corresponding receiving groove. By means of the mode, the strength of the support can be improved, and then the stability of the bone conduction loudspeaker is improved.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 2019114170212 filed on December 31, 2019 and invention name “Bone conduction speaker and bone conduction earphones”. Technical Field

[0002] The present application relates to a speaker, and more particularly to a bone conduction speaker and a bone conduction earphone. Background Art

[0003] Normally, people hear sound because air passing through the ear canal transmits vibrations to the eardrum. The vibrations generated by the eardrum drive the auditory nerve, which then perceives the sound vibrations. Bone conduction technology, however, allows sound to be transmitted through the skin, subcutaneous tissue, and bones to the auditory nerve, allowing people to hear.

[0004] With the development of bone conduction technology, sound devices based on bone conduction technology, such as headphones and MP3 players, have gradually entered the public's field of vision. Due to the advantages of bone conduction sound devices such as openness and no damage to the eardrum, they are favored by consumers. Summary of the Invention

[0005] The present application provides a bone conduction speaker and a bone conduction headset, which can improve the strength of the bracket and thereby improve the stability of the bone conduction speaker.

[0006] In order to solve the above technical problems, the present application provides a bone conduction speaker, comprising: a shell, defining a accommodating space with an opening on one side; a driving mechanism, accommodated in the accommodating space, for generating a vibration signal; a bracket, arranged on a side of the driving mechanism facing the opening, and connected to the driving mechanism, for transmitting the vibration signal, wherein at least one receiving slot is provided on the bracket; a cover body, arranged on a side of the bracket away from the driving mechanism, and snapped with the shell at the opening, for further transmitting the vibration signal transmitted by the bracket to human skin, wherein at least one supporting rib corresponding to the receiving slot is provided on a side of the cover body facing the bracket, and when the cover body is snapped with the shell, each supporting rib extends into the corresponding receiving slot and abuts against the bottom wall of the corresponding receiving slot.

[0007] To solve the above technical problems, the present application also provides a bone conduction headset, which includes two bone conduction speakers, two ear hooks and a back hook. The two bone conduction speakers are respectively connected to one end of the two ear hooks, and the two ear hooks are respectively used to hang on the user's left ear and right ear. The other ends of the two ear hooks are respectively connected to the two ends of the back hook, and the back hook is used to be wrapped around the back of the user's head, wherein the bone conduction speakers are the bone conduction speakers described above.

[0008] The beneficial effects of the present application are as follows: Different from the prior art, the bone conduction speaker of the present application includes a shell, a driving mechanism, a bracket and a cover, wherein the shell is defined with a accommodating space with an opening on one side, and the driving mechanism is accommodated in the accommodating space for generating a vibration signal; the bracket is arranged on the side of the driving mechanism facing the opening and is connected to the driving mechanism for transmitting the vibration signal, wherein at least one receiving slot is opened on the bracket, the cover is arranged on the side of the bracket away from the driving mechanism, and is snapped with the shell at the opening for further transmitting the vibration signal transmitted by the bracket to human skin, wherein at least one supporting rib corresponding to the receiving slot is provided on the side of the cover facing the bracket, and when the cover is snapped with the shell, each supporting rib extends into the corresponding receiving slot and abuts against the bottom wall of the corresponding receiving slot, and the arrangement of the supporting ribs can improve the strength of the bracket, thereby playing a certain protective role on the bracket, reducing damage to the bracket caused by vibration signals, etc., and improving the stability of the bone conduction speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0010] Figure 1 This is a structural diagram of an embodiment of the bone conduction earphones of the present application;

[0011] Figure 2 This is a schematic diagram of an exploded structure from one perspective of an embodiment of the bone conduction speaker of the present application;

[0012] Figure 3 This is a schematic diagram of an exploded structure of an embodiment of the bone conduction speaker of the present application from another perspective;

[0013] Figure 4 This is a partial structural diagram of an embodiment of a bone conduction speaker of the present application;

[0014] Figure 5 This is another partial structural diagram of an embodiment of the bone conduction speaker of the present application. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] See also Figure 1 , Figure 1 The bone conduction earphones in this embodiment can be simple earphones or other devices with earphone functions, such as bone conduction MP3 players, bone conduction players, bone conduction hearing aids, etc.

[0017] The bone conduction headset may include two bone conduction speakers 100 , two ear hooks 200 and a back hook 300 .

[0018] The two bone conduction speakers 100 are connected to one end of two ear hooks 200, which are respectively mounted on the user's left and right ears. The other ends of the ear hooks 200 are connected to the two ends of the back hook 300, which is mounted behind the user's head. When wearing the bone conduction headphones, the back hook 300 is mounted behind the head and the ear hooks 200 are mounted on the left and right ears, respectively, so that the two bone conduction speakers 100 are placed at predetermined locations around the user's ears and in contact with the user.

[0019] For details, please refer to Figures 2 to 5 The bone conduction speaker may include a shell 10, a driving mechanism 20, a bracket 30 and a cover 40.

[0020] Specifically, the shell 10 defines a accommodating space 12 with an opening 11 on one side. The driving mechanism 20 is accommodated in the accommodating space 12 and is used to generate a vibration signal. Specifically, it can receive a certain audio signal and then convert the audio signal into a vibration signal; the bracket 30 can be arranged on the side of the driving mechanism 20 facing the opening 11 and connected to the driving mechanism 20 to transmit the vibration signal generated by the driving mechanism 20 to the cover body 40; and the cover body 40 is further arranged on the side of the bracket 30 away from the driving mechanism 20, and is snapped with the shell 10 at the opening 11 to accommodate the driving mechanism 20 and the bracket 30 in the above-mentioned accommodating space 12 in a relatively closed manner.

[0021] Specifically, the cover body 40 may include a flat top wall 41 and an annular side wall 42, wherein the flat top wall 41 can be used to contact human skin to further transmit the vibration signal transmitted by the bracket 30 to the human skin, and the annular side wall 42 is connected to the outer periphery of the flat top wall 41 and extends laterally to the flat top wall 41 in an arc-shaped transition manner, wherein the cover body 40 is buckled with the shell 10 through the end of the annular side wall 42 away from the flat top wall 41.

[0022] In one application scenario, the cover body 40 includes a hard cover body 43 and a soft conformable pad 44. The soft conformable pad 44 is wrapped around the side of the hard cover body 43 away from the bracket 30. When in use, the soft conformable pad 44 can contact the user's skin.

[0023] Furthermore, at least one receiving groove 31 may be provided on the bracket 30, and accordingly, at least one support rib 45 corresponding to the receiving groove 31 is provided on the side of the cover body 40 facing the bracket 30. When the cover body 40 is buckled with the shell 10, each support rib 45 extends into the corresponding receiving groove 31 and contacts the bottom wall of the corresponding receiving groove 31.

[0024] It should be pointed out that the provision of the support ribs 45 can improve the strength of the bracket 30, thereby providing a certain degree of protection for the bracket 30, reducing damage to the bracket 30 caused by vibration signals, and improving the stability of the bone conduction speaker.

[0025] Specifically, the bracket 30 may include an annular bottom 32 , a first extension portion 33 , a second extension portion 34 , and a plurality of reinforcing ribs 35 . The annular bottom 32 is connected to the driving mechanism 20 and defines a central hole 321 .

[0026] The first extension portion 33 is arranged on the annular bottom 32 around the center hole 321 and extends in a direction away from the driving mechanism 20. The extension direction of the first extension portion 33 can be specifically perpendicular to the main surface of the annular bottom 32 (that is, the surface with a larger area); multiple reinforcing ribs 35 are arranged on the side of the first extension portion 33 away from the center hole 321 and are spaced apart from each other along the circumference of the center hole 321. Specifically, each reinforcing rib 35 can be extended in a direction away from the first extension portion 33, and the extension direction can be perpendicular to the extension direction of the corresponding position of the first extension portion 33; the second extension portion 34 extends from the annular bottom 32 in a direction away from the driving mechanism 20 and is connected to one end of the multiple reinforcing ribs 35 away from the first extension portion 33.

[0027] The cross section of the second extension portion 34 along the direction perpendicular to the extension direction may be annular, in which case the second extension portion 34 may surround the periphery of the entire first extension portion 33; or the cross section of the second extension portion 34 along the direction perpendicular to the extension direction may be a ring segment, thereby only surrounding a portion of the periphery of the first extension portion 33.

[0028] Furthermore, the first extension portion 33 includes a first sub-extension portion 331 and a second sub-extension portion 332 that are arranged opposite to each other, and a first transition portion 333 and a second transition portion 334 connecting the first sub-extension portion 331 and the second sub-extension portion 332, wherein the first transition portion 333 is arranged at one end of the first sub-extension portion 331 and the second sub-extension portion 332, and the second transition portion 334 is arranged at the other end of the first sub-extension portion 331 and the second sub-extension portion 332.

[0029] It should be noted that the height of the first sub-extension 331 relative to the annular base 32 may be higher than the second sub-extension 332, wherein the heights of the first transition portion 333 and the second transition portion 334 may continuously transition between the first sub-extension 331 and the second sub-extension 332, thereby causing the height of the first extension 33 relative to the annular base 32 to vary continuously. Of course, the first transition portion 333 and the second transition portion 334 may also be configured such that the overall height of the first extension 33 relative to the annular base 32 varies in a stepped manner, which is not specifically limited herein.

[0030] Furthermore, an annular step surface 13 is provided on the inner side wall of the shell 10 of the bone conduction speaker near the opening 11, and the side of the annular bottom 32 of the bracket 30 facing away from the first extension portion 33 rests on the annular step surface 13, and the cover body 40 rests on the first sub-extension portion 331 and the second sub-extension portion 332, so that the normal direction of the contact surface between the cover body 40 and the human skin is inclined to the vibration direction of the driving mechanism 20, that is, the angle between the normal direction of the contact surface between the cover body 40 and the human skin and the vibration direction of the driving mechanism 20 is in the range of (0°, 90°).

[0031] The drive mechanism 20 may include a vibration transmitting plate disposed within the central hole 321 and connected to the bracket 30, a magnetic circuit assembly suspended from the vibration transmitting plate, and a coil disposed outside the central hole 321 and connected to the bracket 30. Specifically, the vibration direction of the drive mechanism 20 may be parallel to the central axis of the coil, the central axis of the magnetic circuit assembly, etc.

[0032] It should be pointed out that by tilting the normal direction of the contact surface between the cover 40 and the human skin and the vibration direction of the driving mechanism 20, the sound quality of the bone conduction earphone can be improved to a certain extent.

[0033] Furthermore, the at least one receiving groove 31 defined on the bracket 30 may include a plurality of first receiving grooves 311 and a plurality of second receiving grooves 312. The plurality of first receiving grooves 311 are disposed on the first extension portion 33 at intervals along the circumference of the center hole 321, and the second receiving grooves 312 are disposed on the second extension portion 34 at intervals along the circumference of the center hole 321.

[0034] Accordingly, the support ribs 45 provided on the inner wall of the cover 40 may include a plurality of first support ribs 451 and a plurality of second support ribs 452. Specifically, the first support ribs 451 and the second support ribs 452 may be provided in the arcuate transition region between the flat top wall 41 and the annular side wall 42 of the cover 40, and connected to the flat top wall 41 and the annular side wall 42. Specifically, the first support ribs 451 and the second support ribs 452, as well as the reinforcing ribs 35, may all be vertical surfaces provided on the inner wall of the cover 40.

[0035] Among them, multiple second receiving grooves 312 are respectively arranged in one-to-one correspondence with multiple first receiving grooves 311. When the cover body 40 is buckled with the shell 10, each second receiving groove 312 and the corresponding first receiving groove 311 jointly receive the same corresponding first supporting rib 451, so that the first supporting rib 451 is respectively in contact with the bottom wall of the corresponding first receiving groove 311 and the second receiving groove 312, thereby playing a role in strengthening the bracket 30 and improving the stability of the bone conduction speaker.

[0036] Specifically, the plurality of first receiving grooves 311 are respectively arranged at intervals on the first sub-extension portion 331 or at intervals on the first sub-extension portion 331 , the first transition portion 333 , and the second transition portion 334 .

[0037] In one application scenario, there are four first receiving slots 311, four second receiving slots 312, and four first support ribs 451. Two first receiving slots 311 are spaced apart on the first sub-extension 331, one first receiving slot 311 is located on the first transition portion 333, and another first receiving slot 311 is located on the second transition portion 334. Accordingly, the second extension 34 is disposed only around the first sub-extension 331, the portion of the first transition portion 333 near the first sub-extension 331, and the portion of the second transition portion 334 near the first sub-extension 331. Four second receiving slots 312 are spaced apart on the second extension 34, corresponding one-to-one with the four first receiving slots 311. Furthermore, two reinforcing ribs 35 are disposed at the junction of the first sub-extension 331 and the first transition portion 333, and at the junction of the first sub-extension 331 and the second transition portion 334, respectively. Another two reinforcing ribs 35 are disposed on the first transition portion 333 and the second transition portion 334, respectively.

[0038] Furthermore, the second support ribs 452 can be spaced apart from the first support ribs 451 along the circumference of the center hole 321. Specifically, multiple first support ribs 451 and multiple second support ribs 452 can be spaced apart and intersected with each other, or multiple first support ribs 451 can be provided in a portion of the cover 40, while multiple second support ribs 452 can be provided in another portion of the cover 40 without intersecting with each other. The specific arrangement can be based on actual conditions and is not specifically limited here. When the cover 40 is fastened to the housing 10, the multiple second support ribs 452 can all abut against the side of the annular bottom away from the drive mechanism 20, or cooperate with each other to abut against the side of the annular bottom facing the drive mechanism 20 and the side facing the cover 40, thereby further stabilizing the bracket 30.

[0039] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A bone conduction speaker, characterized in that: include: The housing defines a receiving space with an opening on one side; a driving mechanism, accommodated in the accommodation space, and configured to generate a vibration signal; a bracket, disposed on a side of the drive mechanism facing the opening and connected to the drive mechanism for transmitting the vibration signal, wherein the bracket includes an annular bottom and a first extension portion, the annular bottom being connected to the drive mechanism and defining a center hole, the first extension portion being disposed on the annular bottom around the center hole and extending in a direction away from the drive mechanism, the first extension portion being provided with a plurality of first receiving grooves spaced apart along the circumference of the center hole, the first receiving grooves communicating with a side of the first extension portion close to the center hole and a side of the first extension portion facing away from the center hole; The cover body is arranged on the side of the bracket away from the driving mechanism and is snapped with the shell at the opening, and is used to further transmit the vibration signal transmitted by the bracket to the human skin, wherein the side of the cover body facing the bracket is provided with a plurality of first support ribs corresponding to the plurality of first receiving grooves respectively, and when the cover body is snapped with the shell, each first support rib extends into the corresponding first receiving groove and abuts against the bottom wall of the corresponding first receiving groove.

2. The bone conduction speaker according to claim 1, wherein The cover body includes a flat top wall for contacting the human skin and an annular side wall connected to the outer periphery of the flat top wall and extending laterally to the flat top wall in an arc-shaped transition manner. The first supporting rib is arranged in the arc-shaped transition area between the flat top wall and the annular side wall, and is connected to the flat top wall and the annular side wall.

3. The bone conduction speaker according to claim 1, wherein The bracket further includes a plurality of reinforcing ribs arranged on a side of the first extension portion away from the central hole and spaced apart from each other along the circumference of the central hole.

4. The bone conduction speaker according to claim 3, wherein: The bracket also includes a second extension portion, which extends from the annular bottom in a direction away from the driving mechanism and is connected to one end of the multiple reinforcement ribs away from the first extension portion, wherein the second extension portion is provided with a plurality of second receiving grooves arranged at circumferential intervals along the center hole, and the plurality of second receiving grooves are respectively arranged corresponding to the plurality of first receiving grooves, and when the cover body is buckled with the shell, each second receiving groove and the corresponding first receiving groove jointly receive the same corresponding first support rib, and the first support rib further conflicts with the bottom wall of the corresponding second receiving groove.

5. The bone conduction speaker according to claim 4, characterized in that A plurality of second support ribs are provided on the side of the cover body facing the bracket and spaced apart from the first support rib along the circumference of the center hole. When the cover body is buckled with the shell, the plurality of second support ribs all abut against the side of the annular bottom away from the driving mechanism, or cooperate with each other to abut against the side of the annular bottom facing the driving mechanism and the side facing the cover body respectively.

6. The bone conduction speaker according to claim 4, characterized in that The first extension portion includes a first sub-extension portion and a second sub-extension portion that are opposite to each other, and a first transition portion and a second transition portion that connect the first sub-extension portion and the second sub-extension portion. The first sub-extension portion is higher than the second sub-extension portion relative to the annular bottom portion, and the plurality of first receiving grooves are respectively arranged on the first sub-extension portion or on the first sub-extension portion, the first transition portion and the second transition portion.

7. The bone conduction speaker according to claim 6, wherein: The reinforcing rib and the second extension portion are arranged on a side of the first sub-extension portion away from the central hole.

8. The bone conduction speaker according to any one of claims 1 to 7, characterized in that: The first extension portion includes a first sub-extension portion and a second sub-extension portion arranged opposite to each other, the center hole is located between the first sub-extension portion and the second sub-extension portion, and the cover body is against the first sub-extension portion and the second sub-extension portion so that the normal direction of the contact surface between the cover body and the human skin is inclined to the vibration direction of the driving mechanism.

9. The bone conduction speaker according to claim 1, wherein The inner wall of the shell is provided with an annular step surface near the opening, and the side of the annular bottom facing away from the first extension portion rests on the annular step surface. The driving mechanism includes a vibration transmission plate arranged in the center hole and connected to the bracket, a magnetic circuit assembly suspended on the vibration transmission plate, and a coil arranged on the periphery of the center hole and connected to the bracket.

10. A bone conduction headset, characterized in that: The bone conduction headset includes two bone conduction speakers, two ear hooks and a back hook, the two bone conduction speakers are respectively connected to one end of the two ear hooks, the two ear hooks are respectively used to hang on the user's left ear and right ear, the other ends of the two ear hooks are respectively connected to the two ends of the back hook, and the back hook is used to be wrapped around the back of the user's head, wherein the bone conduction speaker is the bone conduction speaker according to any one of claims 1 to 9.

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