Bone conduction earphone

Abstract

The utility model discloses a bone conduction earphone which comprises a shell, a circuit assembly, a sound transmission channel and a waterproof assembly. The shell comprises an inner cavity; the circuit assembly is arranged in the inner cavity and comprises a circuit board and a microphone connected with the circuit board, and a sound inlet hole is formed in the microphone; the sound transmission channel is communicated with the outside and the sound inlet hole; the waterproof assembly comprises a waterproof breathable film and a waterproof breathable net, and the waterproof assembly seals the sound transmission channel. According to the bone conduction earphone provided by the utility model, the waterproof breathable net is additionally arranged, a dual waterproof effect is achieved through the waterproof breathable film and the waterproof breathable net, and the sound quality of the bone conduction earphone is not affected while the waterproof performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of bone conduction sound generation, in particular to a bone conduction earphone. Background Art

[0002] Bone conduction headphones can convert electrical signals into mechanical vibration signals, and transmit the mechanical vibration signals to the human auditory nerve through human tissue and bones, so that the wearer can hear the sound. Since bone conduction headphones do not use air conduction speakers, there is no need to open a hole in front of the sound unit, so bone conduction headphones are usually more waterproof than air conduction headphones.

[0003] Bone conduction earphones with call functions are usually equipped with a microphone, which needs to be connected to the outside world. A sound pickup hole connecting the outside world and the microphone is provided on the ear shell, so the bone conduction earphones must be waterproof at the sound pickup hole. Figure 1 As shown, the bone conduction earphone includes a shell 1 and a circuit board 201, a microphone 202, a water-permeable and breathable membrane 301 and a sealing ring 206 arranged in the shell 1. The microphone 2022 is installed on the circuit board 201. The shell 1 is provided with a sound pickup hole 101 for the microphone 202 to pick up sound. In order to achieve the purpose of waterproofing, the waterproof and breathable membrane 301 is usually attached to the sound pickup hole 101. However, there are limitations on the waterproof effect of a single waterproof and breathable membrane 301. How to further improve the waterproof effect of the bone conduction earphone becomes a problem that needs to be solved. Utility Model Content

[0004] The utility model aims to provide a bone conduction earphone which can improve the waterproof effect.

[0005] In order to achieve the above-mentioned invention object, the utility model proposes a bone conduction headset, comprising

[0006] a housing, including an inner cavity;

[0007] A circuit assembly is arranged in the inner cavity, comprising a circuit board and a microphone connected to the circuit board, wherein the microphone is provided with a sound inlet hole;

[0008] A sound transmission channel connecting the outside world and the sound inlet hole; and

[0009] The waterproof component comprises a waterproof breathable membrane and a waterproof breathable net, and the waterproof component seals the sound transmission channel.

[0010] Furthermore, the shell is provided with a sound pickup hole connected to the inner cavity, the microphone is arranged on the surface of the circuit board facing away from the sound pickup hole, and the circuit board is provided with a sound transmission hole connected to the sound inlet hole;

[0011] It also includes a sound insulation component, which includes a sound insulation channel connecting the sound pickup hole and the sound inlet hole, and the sound pickup hole, the sound insulation channel and the sound transmission hole form the sound transmission channel.

[0012] Further, the waterproof breathable membrane is attached to the waterproof breathable net, the waterproof breathable net is attached to the inner wall of the shell and seals the sound pickup hole; or,

[0013] The waterproof and breathable membrane is in contact with the inner wall of the housing and seals the sound pickup hole.

[0014] Furthermore, the sound insulation component also includes a sealing ring clamped between the waterproof component and the circuit board, and the sound insulation channel is an inner hole of the sealing ring.

[0015] Furthermore, the waterproof breathable membrane is attached to the inner wall of the shell and seals the sound pickup hole; the waterproof breathable net is attached to the circuit board and seals the sound transmission hole.

[0016] Furthermore, the bone conduction earphone also includes a sealing ring clamped between the waterproof breathable membrane and the circuit board, the waterproof breathable net is located inside the sealing ring, and the sound insulation channel is the inner hole of the sealing ring.

[0017] Further, one of the waterproof breathable membrane and the waterproof breathable net is attached to the inner wall of the shell, and the other is attached to the outer wall of the shell, and both the waterproof breathable membrane and the waterproof breathable net seal the sound pickup hole; or,

[0018] The waterproof breathable membrane and the waterproof breathable net are attached to each other, and the waterproof component is attached to the inner wall or the outer wall of the shell.

[0019] Furthermore, the pore size of the waterproof breathable membrane is smaller than or equal to the pore size of the waterproof breathable net, and the pore size range of the waterproof breathable membrane is 0.1um-8um; the pore size range of the waterproof breathable net is 3um-40um.

[0020] Furthermore, the pore size of the waterproof breathable membrane is smaller than or equal to the pore size of the waterproof breathable net, and the pore size range of the waterproof breathable membrane is 0.2um-4um; the pore size range of the waterproof breathable net is 7um-18um.

[0021] Furthermore, the sound insulation component includes a first annular boss protruding from the inner wall of the outer shell and a sealing ring clamped between the first annular boss and the circuit board, the waterproof component is arranged in the first annular boss, and the first annular boss and the inner hole of the sealing ring form the sound insulation channel.

[0022] Furthermore, the bone conduction earphone includes a back hanging, a battery box and a control compartment connected to the back hanging, an earphone head connected to the battery box or the control compartment through the ear hanging, the shell is the shell of the earphone head or the control compartment or the battery box, and the circuit board is a PCB or FPC.

[0023] Compared with the prior art, the utility model has the following beneficial effects: the bone conduction earphones provided by the utility model are additionally provided with a waterproof breathable net, and achieve a double waterproof effect through the waterproof breathable membrane and the waterproof breathable net, while enhancing the waterproofness without affecting the sound quality of the bone conduction earphones. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of a bone conduction headset in the prior art;

[0025] Figure 2 It is a cross-sectional view of an embodiment of the bone conduction earphone in the utility model; Figure 3 It is a cross-sectional view of an embodiment of the bone conduction earphone in the utility model;

[0026] Figure 4 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0027] Figure 5 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0028] Figure 6 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0029] Figure 7 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0030] Figure 8 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0031] Fig. 9 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0032] Fig.10 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0033] Fig.11 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0034] Fig.12 It is a cross-sectional view of another embodiment of the bone conduction earphone in the utility model;

[0035] Fig.13 yes Fig.10 or Fig.11 or Fig.12 A cross-sectional view in which the waterproof component is removed;

[0036] Fig.14 It is a schematic diagram of the overall structure of the bone conduction earphone in the utility model. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] like Figure 2 , Figure 3 and Figure 6 As shown, the present application proposes a bone conduction earphone, comprising a housing 1, a circuit component 2, a sound transmission channel and a waterproof component 3.

[0041] The housing 1 includes an inner cavity 102 and a sound pickup hole 101 communicating with the inner cavity 102 .

[0042] The circuit assembly 2 is disposed in the inner cavity 102 , and includes a circuit board 201 and a microphone 202 connected to the circuit board 201 . A sound inlet hole 203 is provided on the microphone 202 .

[0043] The sound transmission channel is connected to the outside and the sound inlet hole 203 .

[0044] The waterproof component 3 includes a waterproof breathable membrane 301 and a waterproof breathable net 302 , and the waterproof component 3 seals the sound transmission channel 3 .

[0045] Compared with the waterproof breathable membrane 301 and the waterproof breathable net 302, the waterproof effect of the waterproof breathable membrane 301 can reach level 8 waterproof, but the sound transmission effect is slightly worse; the waterproof breathable net 302 has a good sound transmission effect, but the waterproof effect is weaker than the waterproof breathable membrane 301, generally reaching level 4 to 5, so adding a waterproof breathable net 302 can enhance the waterproof without having a great impact on the sound quality. In the utility model, in addition to the original waterproof breathable membrane 301, the waterproof component 3 is additionally provided with a waterproof breathable net 302. Even if water passes through the waterproof breathable membrane 301, there is still a waterproof breathable net 302 to prevent water from penetrating. The waterproof breathable membrane 301 and the waterproof breathable net 302 achieve a double waterproof effect, and the waterproof effect is better.

[0046] As an optional embodiment, the aperture of the waterproof breathable membrane 301 is less than or equal to the aperture of the waterproof breathable net 302, and the aperture range of the waterproof breathable membrane 301 is 0.1um-8um; the aperture range of the waterproof breathable net 302 is 3um-40um, and further preferably, the aperture range of the waterproof breathable membrane 301 is 0.2um-4um; the aperture range of the waterproof breathable net 302 is 7um-18um. The apertures of the waterproof breathable membrane 301 and the waterproof breathable net 302 cannot be too large or too small. If the aperture is too large, the waterproof effect cannot be achieved, and liquid will leak into the inner cavity, resulting in waterproof failure. If the aperture is too small, although the waterproof effect is good, it will cause too much acoustic resistance, which will eventually affect the performance of the microphone, such as poor pickup effect or poor noise reduction effect. Therefore, on the basis of ensuring waterproof and microphone performance, it is a factor that needs to be comprehensively considered to select appropriate apertures for the waterproof breathable membrane 301 and the waterproof breathable net 302.

[0047] As a preferred embodiment, the microphone 202 is disposed on the surface of the circuit board 201 facing away from the sound pickup hole 101 , and a sound transmission hole 204 communicating with the sound inlet hole 203 is opened on the circuit board 201 .

[0048] In some embodiments, Figure 2 and Figure 3 As shown, the waterproof breathable membrane 301 and the waterproof breathable net 302 are attached to each other and the two are stacked together. It can be understood that the waterproof breathable net 302 can be attached to the top of the waterproof breathable membrane 301, or the waterproof breathable membrane 301 can be attached to the top of the waterproof breathable net 302. For example, Figure 2 In the illustrated embodiment, the waterproof and breathable mesh 302 is in contact with the inner wall 103 of the housing 1 and seals the sound pickup hole 101. Figure 3 In the illustrated embodiment, the waterproof breathable membrane 301 is in contact with the inner wall 103 of the housing 1 and seals the sound pickup hole 101 .

[0049] In some embodiments, the bone conduction earphone further includes a sound insulation component, which includes a sound insulation channel 205 connecting the sound pickup hole 101 and the sound inlet hole 203. The sound pickup hole 101, the sound insulation channel 205 and the sound transmission hole 204 form a sound transmission channel. The sound inlet hole 203 of the microphone 202 is connected to the outside world through the sound transmission channel, so that the microphone 202 can pick up the sound from the outside world. Figure 4 and Figure 5 As shown, the sound insulation component 4 includes a sealing ring 206 clamped between the waterproof component 3 and the circuit board 201, and the sound insulation channel 205 is the inner hole of the sealing ring 206. Depending on the position of the waterproof breathable membrane 301 and the waterproof breathable net 302, the parts where the sealing ring 206 abuts against the waterproof component 3 are also different. Figure 4 The figure shows the situation where the sealing ring 206 is clamped between the waterproof breathable membrane 301 and the circuit board 201; Figure 5 The seal ring 206 is shown to be clamped between the waterproof breathable net 302 and the circuit board 201. The waterproof breathable membrane 301, the waterproof breathable net 302 and the seal ring 206 work together to achieve waterproofing, thereby enhancing the waterproofing performance. It is understandable that the seal ring 206 can play a role in sound insulation, so that the sound can be more reliably transmitted to the microphone 202, thereby improving the sound pickup effect. The seal ring 206 is preferably made of a material with good waterproofing performance, good sound insulation effect, and a certain elasticity, such as a foam material or a silicone material. After the seal ring 206 is installed, it has a certain amount of compression to improve the waterproofing effect.

[0050] In other embodiments, the waterproof breathable membrane 301 and the waterproof breathable net 302 are arranged at intervals. Figure 6 As shown, the waterproof breathable membrane 301 is attached to the inner wall 103 of the housing 1 and seals the sound pickup hole 101 , and the waterproof breathable mesh 302 is attached to the surface of the circuit board 201 facing the sound pickup hole 101 and seals the sound transmission hole 204 .

[0051] In some possible embodiments, such as Figure 7 As shown, the sealing ring 206 is clamped between the waterproof breathable membrane 301 and the circuit board 201 , the waterproof breathable net 302 is located inside the sealing ring 206 , and the sound insulation channel 205 is the inner hole of the sealing ring 206 .

[0052] In other embodiments, the waterproof component 3 may also be partially located outside the housing 1, for example, one of the waterproof breathable membrane 301 and the waterproof breathable net 302 is attached to the inner wall 103 of the housing 1, and the other is attached to the outer wall 104 of the housing 1, and the waterproof breathable membrane 301 and the waterproof breathable net 302 both seal the sound pickup hole 101. Figure 8It shows a situation where the waterproof breathable mesh 302 is attached to the inner wall 103 of the outer shell 1 , and the waterproof breathable membrane 301 is attached to the outer wall 104 of the outer shell 1 .

[0053] The waterproof components can also be completely located outside the housing 1 , with the waterproof breathable membrane 301 and the waterproof breathable net 302 being attached to each other, and the waterproof component 3 being attached to the outer wall 104 of the housing 1 through its waterproof breathable membrane 301 or the waterproof breathable net 302 .

[0054] In other embodiments, Figures 10 to 12 As shown, the sound insulation component 4 includes a first annular boss 207 protruding from the inner wall 103 of the housing 1 and a sealing ring 206 clamped between the first annular boss 207 and the circuit board 201, and the waterproof component 3 is arranged in the first annular boss 207, and the inner hole of the first annular boss 207 and the sealing ring 206 forms a sound insulation channel 205. It can be understood that the sealing ring 206 is arranged on the end face 208 of the first annular boss 207 facing the inner cavity 102, and is clamped between the end face 208 and the circuit board 201, and the waterproof breathable membrane 301 and the waterproof breathable net 302 are attached and located in the first annular boss 207.

[0055] Figures 10 to 13 It is shown that the end surface 208 of the first annular boss 207 facing the inner cavity 102 is provided with a second annular boss 209 protruding outward, and the sealing ring 206 is adapted to the second annular boss 404 and is limited inside the second annular boss 404. It can be understood that the waterproof breathable membrane 301 and the sealing ring 206 are arranged at intervals, so that the sealing ring 206 does not directly press on the waterproof breathable membrane 301, which can effectively prevent the sealing ring 206 from squeezing the waterproof breathable membrane 301 to avoid wrinkling the waterproof breathable membrane 301, and can effectively reduce the water from the outer periphery of the waterproof breathable membrane 301. Infiltrate into the interior of the housing 1, achieve a good waterproof effect, even if water infiltrates laterally from the bottom of the waterproof breathable membrane 301, the waterproof breathable membrane 301, the waterproof breathable net 302 and the sealing ring 206 jointly play a waterproof role, and enhance the waterproof performance. At the same time, the waterproof breathable mesh 302 can be attached to the top of the waterproof breathable membrane 301, or the waterproof breathable membrane 301 can be attached to the top of the waterproof breathable mesh 302, or the waterproof breathable membrane 301 can be attached to the inner wall of the shell 1, and the waterproof breathable mesh 302 can be attached to the circuit board 201. The waterproof breathable membrane 301, the waterproof breathable mesh 302 and the sealing ring 206 can play a waterproof role together to enhance the waterproof performance.

[0056] like Fig.14 As shown, Fig.14A bone conduction headset of an embodiment is shown, which includes a back hanger 4, a battery box 5 and a control compartment 6 connected to the back hanger 4, and an earphone head 8 connected to the battery box 5 or the control compartment 6 via an ear hanger 7. The housing 1 can be a housing of the earphone head 8, a housing of the control compartment 6, or a housing of the battery box 5, that is, at least one control compartment 6, at least one battery box 5, or at least one earphone head 8 includes the above-mentioned housing 1 and a matching sound pickup and waterproof structure. For example, one earphone head 8 and one control compartment 6 can be provided with the above-mentioned housing 1 and a matching sound pickup and waterproof structure. For another example, only one earphone head 8 can be provided with the above-mentioned housing 1 and a matching sound pickup and waterproof structure.

[0057] Optionally, the circuit board 201 mentioned above is a PCB or an FPC, which can be selected as needed.

[0058] It is understandable that, in addition to Fig.14 In addition to the binaural bone conduction headphones shown, the bone conduction headphones can also be monaural.

[0059] The above are only specific implementations of the present invention, and any improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A bone conduction headset, characterized in that: include: a housing, including an inner cavity; A circuit assembly is arranged in the inner cavity, comprising a circuit board and a microphone connected to the circuit board, wherein the microphone is provided with a sound inlet hole; A sound transmission channel connecting the outside world and the sound inlet hole; and The waterproof component comprises a waterproof breathable membrane and a waterproof breathable net, and the waterproof component seals the sound transmission channel.

2. The bone conduction earphone according to claim 1, characterized in that: The shell is provided with a sound pickup hole connected to the inner cavity, the microphone is arranged on the surface of the circuit board facing away from the sound pickup hole, and the circuit board is provided with a sound transmission hole connected to the sound inlet hole; It also includes a sound insulation component, which includes a sound insulation channel connecting the sound pickup hole and the sound inlet hole, and the sound pickup hole, the sound insulation channel and the sound transmission hole form the sound transmission channel.

3. The bone conduction earphone according to claim 2, characterized in that: The waterproof breathable membrane is in contact with the waterproof breathable net, and the waterproof breathable net is in contact with the inner wall of the housing and seals the sound pickup hole; or, The waterproof and breathable membrane is in contact with the inner wall of the housing and seals the sound pickup hole.

4. The bone conduction earphone according to claim 3, characterized in that: The sound insulation component also includes a sealing ring clamped between the waterproof component and the circuit board, and the sound insulation channel is an inner hole of the sealing ring.

5. The bone conduction earphone according to claim 2, characterized in that: The waterproof breathable membrane is attached to the inner wall of the shell and seals the sound pickup hole; the waterproof breathable net is attached to the circuit board and seals the sound transmission hole.

6. The bone conduction earphone according to claim 5, characterized in that: The bone conduction earphone also includes a sealing ring clamped between the waterproof breathable membrane and the circuit board, the waterproof breathable net is located inside the sealing ring, and the sound insulation channel is the inner hole of the sealing ring.

7. The bone conduction earphone according to claim 2, characterized in that: One of the waterproof breathable membrane and the waterproof breathable net is attached to the inner wall of the shell, and the other is attached to the outer wall of the shell, and both the waterproof breathable membrane and the waterproof breathable net seal the sound pickup hole; or, The waterproof breathable membrane and the waterproof breathable net are attached to each other, and the waterproof component is attached to the inner wall or the outer wall of the shell.

8. The bone conduction earphone according to any one of claims 1 to 7, characterized in that: The pore size of the waterproof breathable membrane is smaller than or equal to the pore size of the waterproof breathable net, and the pore size range of the waterproof breathable membrane is 0.1um-8um; the pore size range of the waterproof breathable net is 3um-40um.

9. The bone conduction earphone according to any one of claims 1 to 7, characterized in that: The pore size of the waterproof breathable membrane is smaller than or equal to the pore size of the waterproof breathable net. The pore size of the waterproof breathable membrane ranges from 0.2um to 4um; the pore size of the waterproof breathable net ranges from 7um to 18um.

10. The bone conduction earphone according to any one of claims 2 to 6, characterized in that: The sound insulation component includes a first annular boss protruding from the inner wall of the shell and a sealing ring clamped between the first annular boss and the circuit board. The waterproof component is arranged in the first annular boss. The first annular boss and the inner hole of the sealing ring form the sound insulation channel.

11. The bone conduction earphone according to any one of claims 1 to 7, characterized in that: The bone conduction earphone includes a back hanging, a battery box and a control compartment connected to the back hanging, and an earphone head connected to the battery box or the control compartment through the ear hanging, the shell is the shell of the earphone head or the control compartment or the battery box, and the circuit board is a PCB or an FPC.

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