Bone conduction earphone

Abstract

The utility model discloses a bone conduction earphone. The bone conduction earphone comprises a housing, a circuit assembly and a waterproof assembly. The shell comprises an inner cavity and a pickup hole communicated with the 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 and faces the pickup hole; the waterproof assembly comprises a waterproof breathable film and a rubber ring, the waterproof breathable film is attached to the inner wall of the shell and seals the pickup hole, and the rubber ring is located on the outer edge of the waterproof breathable film and connected with the shell. The rubber ring is located on the outer edge of the waterproof breathable film and connected with the shell, so that water can be blocked by the rubber ring even if the water laterally permeates from the bottom of the waterproof breathable film and the bottom of the sealing ring, and the waterproof effect is improved.

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 comprises a housing 1, a circuit board 201, a microphone 202, a water-permeable and breathable membrane 301 and a sealing ring 302. The water-permeable and breathable membrane 301 is attached to the sound pickup hole 101 opened on the housing 1, and the sealing ring 302 is crimped on the outer surface of the water-permeable and breathable membrane 301. However, when in use, water may still penetrate into the interior of the housing 1 from the outer periphery of the water-permeable and breathable membrane 301 and the sealing ring 302, that is, along the Figure 2 Path A in the figure penetrates into the bone conduction earphone, and the waterproof effect is not ideal.

[0004] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Utility Model Content

[0005] The utility model aims to provide a bone conduction earphone which can improve the waterproof effect.

[0006] In order to achieve the above-mentioned invention object, the utility model proposes a bone conduction headset, comprising

[0007] The housing comprises an inner cavity and a sound pickup hole connected to the inner cavity;

[0008] 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, and the sound inlet hole is arranged toward the sound pickup hole;

[0009] The waterproof component comprises a waterproof breathable membrane and a rubber ring, wherein the waterproof breathable membrane is fitted with the inner wall of the shell and seals the sound pickup hole, and the rubber ring is located at the outer edge of the waterproof breathable membrane and connected to the shell.

[0010] Furthermore, at least part of the rubber ring is connected to the outer peripheral surface of the waterproof breathable membrane, or at least part of the rubber ring is located on the upper surface of the waterproof breathable membrane.

[0011] Furthermore, the rubber ring is formed by curing UV glue, liquid silicone or hot melt glue, and its thickness is greater than the thickness of the waterproof breathable membrane.

[0012] Further, the housing comprises a first annular boss protruding from the inner wall, and the waterproof breathable membrane is arranged in the first annular boss;

[0013] The rubber ring is connected to the outer edge of the waterproof and breathable membrane and the first hole wall of the first annular boss.

[0014] Furthermore, the outer shell includes a first annular boss protruding from the inner wall, the waterproof breathable membrane is arranged in the first annular boss, the waterproof component also includes a sealing ring arranged in the first annular boss, the sealing ring is clamped between the circuit board and the inner wall of the outer shell, and the rubber ring is arranged on the outer edge of the waterproof breathable membrane and the sealing ring.

[0015] Furthermore, a first annular spacing groove is formed between the sealing ring, the waterproof breathable membrane and the first annular boss, and the rubber ring is filled in the first annular spacing groove and is connected to the waterproof breathable membrane, the sealing ring and the first hole wall of the first annular boss.

[0016] Furthermore, the waterproof component also includes a sealing ring, the waterproof breathable membrane and the sealing ring are both connected to the inner wall, and the waterproof breathable membrane is arranged in the sealing ring, and the rubber ring at least partially fills the annular space between the second hole wall of the waterproof breathable membrane and the sealing ring.

[0017] Furthermore, the waterproof component also includes a sealing ring, which is arranged on the end surface of the first annular boss facing the inner cavity and is clamped between the end surface and the circuit board.

[0018] Furthermore, the thickness of the rubber ring before compression ranges from 0.6 mm to 3.0 mm, and the ring width ranges from 0.4 mm to 2.0 mm.

[0019] Furthermore, the thickness of the rubber ring before compression ranges from 1.0 mm to 2.5 mm, and the ring width ranges from 0.6 mm to 1.4 mm.

[0020] Furthermore, the microphone and the waterproof breathable membrane are respectively located on two sides of the circuit board, and a sound transmission hole connecting the sound inlet hole and the sound pickup hole is opened on the circuit board.

[0021] 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.

[0022] Compared with the prior art, the utility model has the following beneficial effects: in the bone conduction earphone provided by the utility model, the rubber ring is located at the outer edge of the waterproof breathable membrane and is connected to the outer shell, so that even if moisture penetrates laterally from the bottom of the waterproof breathable membrane and the sealing ring, it can be blocked by the rubber ring, thereby improving the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional view of a bone conduction headset in the prior art;

[0024] Figure 2 middle Figure 1 The direction of water flow into the sound pickup hole;

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

[0026] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

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

[0028] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

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

[0030] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle;

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

[0032] Fig.10 yes Fig. 9 A partial enlarged view of point D in the middle;

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

[0034] Fig.12 yes Fig.11A partial enlarged view of point E in the middle;

[0035] Fig.13 It is a cross-sectional view of another embodiment of the waterproof component of the bone conduction earphone in the utility model;

[0036] Fig.14 yes Fig.13 A partial enlarged view of point F in the middle;

[0037] Fig.15 yes Fig.13 A cross-sectional view in which the waterproof component is removed;

[0038] Fig.16 It is a schematic diagram of the overall structure of the bone conduction earphone in the utility model. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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 locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with 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.

[0042] like Figures 3 to 8 As shown, the present application proposes a bone conduction headset, comprising a housing 1, a circuit component 2 and a waterproof component 3.

[0043] The housing 1 includes an inner cavity 102 and a sound pickup hole 101 communicating with the inner cavity 102 .

[0044] 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 , and the sound inlet hole 203 is disposed toward the sound pickup hole 101 .

[0045] The waterproof component 3 includes a waterproof breathable membrane 301 and a rubber ring 303 . The waterproof breathable membrane 301 is attached to the inner wall 103 of the housing 1 and seals the sound pickup hole 101 . The rubber ring 303 is located at the outer edge of the waterproof breathable membrane 301 and connected to the housing 1 .

[0046] The rubber ring 303 is located at the outer edge of the waterproof breathable membrane 301 and is connected to the housing 1. As some feasible examples, Figures 3 to 8 As shown, the rubber ring 303 can be arranged to be at least partially connected to the outer peripheral surface 3011 of the waterproof breathable membrane 301 and the housing 1, or the rubber ring 303 can be arranged to be at least partially located on the upper surface 3012 of the outer edge of the waterproof breathable membrane 301 and connected to the housing 1. The rubber ring 303 seals the outer edge area of ​​the waterproof breathable membrane 301, which can achieve a good waterproof effect. Even if moisture penetrates laterally from the bottom of the waterproof breathable membrane 301, it can be blocked by the rubber ring 303, thereby improving the waterproof effect. In addition, the arrangement of the rubber ring 303 enhances the connection force between the waterproof breathable membrane 301 and the housing 1, which can make the connection between the waterproof breathable membrane 301 and the housing 1 more secure.

[0047] The rubber ring 303 is formed by applying glue on the outer edge of the waterproof breathable membrane 301 and then curing it. The material of the rubber ring 303 can be, for example, UV glue, liquid silicone or hot melt glue, etc. It is mainly applied by a rubber tube through a needle and then cured. It is actually an irregular shape. In some embodiments, the thickness of the rubber ring 303 is set to be greater than the thickness of the waterproof breathable membrane 301 to further improve the waterproof and connection effects. Optionally, the thickness D of the rubber ring 303 before compression is in the range of 0.6mm to 3.0mm, and the ring width W is in the range of 0.4mm to 2.0mm. Further preferably, the thickness D of the rubber ring 303 before compression is in the range of 1.0mm to 2.5mm, and the ring width W is in the range of 0.6mm to 1.4mm. The rubber ring 303 needs to maintain a certain height to ensure that a certain amount of compression and pressure are maintained after being compressed, so that the rubber ring 303 can be compressed to ensure waterproof performance. The thickness D of the rubber ring 303 cannot be too small, otherwise the compression amount is insufficient and water leakage occurs. The thickness D cannot be too large either, as it will take up space. At the same time, too much compression will cause the boss and the circuit board to be subjected to too much internal stress, which may cause damage to the structural parts after long-term use. The ring width W of the rubber ring 303 cannot be too narrow, as it will result in poor or failure of the waterproof effect. If it is too wide, although the waterproof effect can be guaranteed, it will occupy too much internal space and the product cannot be miniaturized. The waterproof performance is enhanced by the rubber ring 302 to prevent moisture from penetrating laterally along the bottom of the waterproof breathable membrane 301 into the front cavity 204 formed between the sound inlet hole 203 and the sound pickup hole 101 .

[0048] In some embodiments, Figures 3 to 8 As shown, the housing 1 includes a first annular boss 1031 protruding from the inner wall 103 , and the waterproof breathable membrane 301 and the rubber ring 303 are both arranged in the first annular boss 1031 ; the rubber ring 303 is connected to the outer edge of the waterproof breathable membrane 301 and the first hole wall 1035 of the first annular boss 1031 .

[0049] In some possible embodiments, such as Figure 3 and Figure 4 As shown, the rubber ring 303 is connected to the outer peripheral surface 3011 of the waterproof breathable membrane 301, and is connected to the inner wall 103 of the housing 1 and the first hole wall 1035 of the first annular boss 1031, that is, the rubber ring 303 is filled in the annular gap between the waterproof breathable membrane 301 and the housing 103. It can be understood that the rubber ring 303 may not be connected to the first hole wall 1035 of the first annular boss 1031, and a certain waterproof effect can also be achieved. However, the rubber ring 303 is arranged to be connected to the first hole wall 1035 of the first annular boss 1031, the waterproof effect is better, and it is more convenient to arrange the rubber ring 303 on the outer edge of the waterproof breathable membrane 301.

[0050] In other feasible embodiments, such as Figure 5 and Figure 6As shown, the rubber ring 303 is connected to the upper surface 3012 of the waterproof breathable membrane 301 , and is also connected to the first hole wall 1035 of the first annular boss 1031 .

[0051] In some other feasible embodiments, Figure 7 and Figure 8 As shown, the rubber ring 303 is connected to the outer peripheral surface 3011 and the upper surface 3012 of the waterproof breathable membrane 301. At the same time, the rubber ring 303 is also connected to the inner wall 103 of the shell 1 and the first hole wall 1035 of the first annular boss 1031. The rubber ring 303 is wrapped around the outer edge of the waterproof breathable membrane 301, and the waterproof effect is better.

[0052] The above three configurations of the rubber ring 303 can effectively prevent moisture from penetrating laterally from the bottom of the waterproof breathable membrane 301, thereby improving the waterproof effect.

[0053] In some embodiments, Fig. 9 and Fig.10 As shown, the housing 1 includes a first annular boss 1031 protruding from the inner wall 103, the waterproof breathable membrane 301 and the rubber ring 303 are arranged in the first annular boss 1031, and the waterproof component 3 also includes a sealing ring 302 arranged in the first annular boss 1031, the sealing ring 302 is clamped between the circuit board 201 and the inner wall 103 of the housing 1, and the rubber ring 303 is arranged on the outer edges of the waterproof breathable membrane 301 and the sealing ring 302.

[0054] In some embodiments, Fig. 9 and Fig.10 As shown, the sealing ring 302 is arranged on the upper surface 3012 of the waterproof breathable membrane 301, and the sealing ring 302, the waterproof breathable membrane 301 and the first annular boss 1031 form a first annular spacing groove 1032. The rubber ring 303 is filled in the first annular spacing groove 1032, and is connected with the waterproof breathable membrane 301, the sealing ring 302, the inner wall 103 of the housing 1 and the first hole wall 1035 of the first annular boss 1031. Since the rubber ring 303 is arranged on the outer edge of the waterproof breathable membrane 301 and the sealing ring 302, it can effectively prevent moisture from penetrating into the front cavity 204 from the gap between the waterproof breathable membrane 301 and the sealing ring 303. The waterproof breathable membrane 301, the sealing ring 302 and the rubber ring 303 play a waterproof role together, and the waterproof performance is enhanced. In addition, the sealing ring 302 can guide the sound into the microphone 202 and block the external sound, which is conducive to improving the sound pickup effect.

[0055] In other embodiments, Fig.11 and Fig.12As shown, the waterproof breathable membrane 301 and the sealing ring 302 are both connected to the inner wall 103, and the waterproof breathable membrane 301 is arranged in the sealing ring 302 to form an annular space with the sealing ring 302, and the rubber ring 303 is at least partially filled in the annular space between the waterproof breathable membrane 301 and the second hole wall 3021 of the sealing ring 302. The rubber ring 303 shown in the figure is connected to the surface of the waterproof breathable membrane 301 facing the inner cavity 102, the second hole wall 3021 of the sealing ring 302 and the inner wall 103 of the shell 1.

[0056] In other embodiments, Fig.13 and Fig.14 As shown, the sealing ring 302 is disposed on the end surface 1033 of the first annular boss 1031 facing the inner cavity 102, and is clamped between the end surface 1033 and the circuit board 201. The rubber ring 303 is disposed on the surface of the waterproof and breathable membrane 301 facing the inner cavity 102 (i.e., the upper surface 3012). Fig.15 As shown, Fig.15 It is shown that the end surface 1033 of the first annular boss 1031 facing the inner cavity 102 is provided with a second annular boss 1034 protruding outward, and the sealing ring 302 is adapted to the second annular boss 1034 and is limited inside the second annular boss 1034. It can be understood that the waterproof breathable membrane 301 and the sealing ring 302 are arranged at intervals, so that the sealing ring 302 does not directly press on the waterproof breathable membrane 301, which can effectively prevent the sealing ring 302 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 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 sealing ring 302 and the rubber ring 303 work together to play a waterproof role, and enhance the waterproof performance.

[0057] The sealing ring 302 is preferably made of a material with good waterproof performance, good sound insulation effect, and certain elasticity, such as foam material or silicone material. The sealing ring 302 has a certain amount of compression after installation to improve the waterproof effect.

[0058] like Figure 3 , Figure 5 , Figure 7 , Fig. 9 , Fig.11 and Fig.13As shown, the microphone 202 and the waterproof breathable membrane 301 are respectively located on both sides of the circuit board 201, and the microphone 202 is attached to the upper surface of the circuit board 201. The circuit board 201 is provided with a sound transmission hole 205 connecting the sound inlet hole 203 and the sound pickup hole 101, so that the sound inlet hole 101 of the microphone 202 is connected to the outside world through the sound pickup hole 101, which facilitates the microphone 202 to pick up the sound of the outside world. Preferably, the diameter of the inner hole of the sealing ring 302 is larger than the diameter of the sound pickup hole 101, and the diameter of the sound transmission hole 205 is larger than the diameter of the sound inlet hole 203. In other embodiments, the microphone 202 can also be attached to the lower surface of the circuit board 201.

[0059] like Fig.16 As shown, Fig.16 The present invention shows a bone conduction earphone according to an embodiment, which further comprises a rear hanging 4, a battery box 5 and a control compartment 6 connected to the rear hanging 4, and an earphone head 8 connected to the battery box 5 or the control compartment 6 via an ear hanging 7. The outer shell 1 may be an outer shell of the earphone head 8, or an outer shell of the control compartment 6, or an outer shell 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 comprises the above-mentioned outer shell 1 and a matching sound pickup and waterproof structure. For example, one earphone head 8 and one control compartment 6 may be provided with the above-mentioned outer shell 1 and a matching sound pickup and waterproof structure. For another example, only one earphone head 8 may be provided with the above-mentioned outer shell 1 and a matching sound pickup and waterproof structure.

[0060] Optionally, the circuit board 201 mentioned above is a PCB or an FPC, which can be selected as needed.

[0061] It is understandable that, in addition to Fig.13 In addition to the binaural bone conduction headphones shown, the bone conduction headphones can also be monaural.

[0062] 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 The housing comprises an inner cavity and a sound pickup hole connected to the 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, and the sound inlet hole is arranged toward the sound pickup hole; The waterproof component comprises a waterproof breathable membrane and a rubber ring, wherein the waterproof breathable membrane is fitted with the inner wall of the shell and seals the sound pickup hole, and the rubber ring is located at the outer edge of the waterproof breathable membrane and connected to the shell.

2. The bone conduction earphone according to claim 1, characterized in that: At least part of the rubber ring is connected to the outer peripheral surface of the waterproof breathable membrane, or at least part of the rubber ring is located on the upper surface of the waterproof breathable membrane.

3. The bone conduction earphone according to claim 2, characterized in that: The rubber ring is formed by curing UV glue, liquid silicone or hot melt glue, and its thickness is greater than the thickness of the waterproof breathable membrane.

4. The bone conduction earphone according to claim 3, characterized in that: The housing comprises a first annular boss protruding from the inner wall, and the waterproof breathable membrane is arranged in the first annular boss; The rubber ring is connected to the outer edge of the waterproof and breathable membrane and the first hole wall of the first annular boss.

5. The bone conduction earphone according to claim 3, characterized in that: The shell includes a first annular boss protruding from the inner wall, the waterproof breathable membrane is arranged in the first annular boss, the waterproof component also includes a sealing ring arranged in the first annular boss, the sealing ring is clamped between the circuit board and the inner wall of the shell, and the rubber ring is arranged on the outer edge of the waterproof breathable membrane and the sealing ring.

6. The bone conduction earphone according to claim 5, characterized in that: A first annular spacing groove is formed between the sealing ring, the waterproof breathable membrane and the first annular boss. The rubber ring is filled in the first annular spacing groove and is connected to the waterproof breathable membrane, the sealing ring and the first hole wall of the first annular boss.

7. The bone conduction earphone according to claim 3, characterized in that: The waterproof component also includes a sealing ring. The waterproof breathable membrane and the sealing ring are both connected to the inner wall, and the waterproof breathable membrane is arranged in the sealing ring. The rubber ring at least partially fills the annular space between the second hole wall of the waterproof breathable membrane and the sealing ring.

8. The bone conduction earphone according to claim 4, characterized in that: The waterproof component also includes a sealing ring, which is arranged on the end surface of the first annular boss facing the inner cavity and is clamped between the end surface and the circuit board.

9. The bone conduction earphone according to any one of claims 1 to 8, characterized in that: The thickness of the rubber ring before compression ranges from 0.6 mm to 3.0 mm, and the ring width ranges from 0.4 mm to 2.0 mm.

10. The bone conduction earphone according to any one of claims 1 to 8, characterized in that: The thickness of the rubber ring before compression is in the range of 1.0 mm to 2.5 mm, and the ring width is in the range of 0.6 mm to 1.4 mm.

11. The bone conduction earphone according to any one of claims 1 to 8, characterized in that: The microphone and the waterproof breathable membrane are respectively located on two sides of the circuit board, and a sound transmission hole connecting the sound inlet hole and the sound pickup hole is opened on the circuit board.

12. The bone conduction earphone according to any one of claims 1 to 8, 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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