Sealing structure and bone conduction earphone

Abstract

The utility model discloses a sealing structure and a bone conduction earphone, and belongs to the technical field of bone conduction earphones. The sealing structure comprises a shell, a cover body, a circuit board, a key assembly, a sealing piece and a rear hanging piece. A containing groove is formed in one side of the shell, and a mounting hole communicating with the containing groove is formed in the circumferential wall of the shell; the cover body covers the notch of the accommodating groove; the circuit board is arranged in the accommodating groove; the key assembly is arranged in the accommodating groove and is electrically connected with the circuit board; the sealing piece is arranged between the circuit board and the cover body and abuts against the side wall of the containing groove, and an annular sealant containing groove used for containing sealant is formed in the circumferential edge of the side, away from the circuit board, of the sealing piece; one end of the rear hanging piece penetrates through the mounting hole and is arranged in the containing groove, an arc-shaped receding groove matched with the rear hanging piece is formed in the circumferential wall of the sealing piece, and the arc-shaped receding groove is communicated with the annular glue containing groove. According to the sealing structure provided by the invention, the waterproof and sweat-proof performance is effectively improved, and the service life of the circuit board and the key assembly is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bone conduction earphones, and particularly relates to a sealing structure and a bone conduction earphone. BACKGROUND

[0002] Bone conduction is a way of sound conduction, which converts sound into mechanical vibration of different frequencies, and transmits sound waves through the human skull, bone labyrinth, inner ear lymph, spiral organ and auditory center. The bone conduction earphone generally needs to have certain waterproof and sweat-proof performance, especially in the key and circuit board area. The existing bone conduction earphone has gaps at multiple positions of the shell, so that liquid can easily penetrate into the shell from the gaps, thereby causing short circuit of the key and circuit board and other elements. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to overcome the deficiencies in the prior art, and provide a sealing structure and a bone conduction earphone to solve the technical problem of poor waterproof and sweat-proof performance of the bone conduction earphone in the prior art.

[0004] To solve the above technical problems, the present application provides:

[0005] A sealing structure comprises:

[0006] A shell, one side of the shell is provided with a containing groove, and a circumferential wall of the shell is provided with a mounting hole in communication with the containing groove;

[0007] A cover body is arranged at a groove opening of the containing groove;

[0008] A circuit board is arranged in the containing groove;

[0009] A key assembly is arranged in the containing groove and electrically connected with the circuit board;

[0010] A sealing element is arranged between the circuit board and the cover body and abuts against a side wall of the containing groove, and a circumferential edge of a side of the sealing element away from the circuit board is provided with an annular glue containing groove for containing sealing glue;

[0011] A rear hanging piece is arranged in the containing groove through the mounting hole, a circumferential wall of the sealing element is provided with an arc-shaped avoiding groove matched with the rear hanging piece, and the arc-shaped avoiding groove is in communication with the annular glue containing groove.

[0012] In addition, the sealing structure according to the present application can also have the following additional technical features:

[0013] In some embodiments of the present application, a bottom wall of the annular glue containing groove is provided with a plurality of first glue containing grooves, and the plurality of first glue containing grooves are arranged at intervals along the circumference of the sealing element.

[0014] In some embodiments of the present application, the side wall of the accommodating groove is provided with a plurality of second glue accommodating grooves, and the plurality of second glue accommodating grooves are arranged at intervals along the inner periphery of the shell.

[0015] In some embodiments of the present application, the plurality of second glue accommodating grooves are in communication with the plurality of first glue accommodating grooves.

[0016] In some embodiments of the present application, the width of the annular glue accommodating groove is 1.2-1.6 mm.

[0017] In some embodiments of the present application, the depth of the annular glue accommodating groove is 0.5-1 mm.

[0018] In some embodiments of the present application, the radius of the arc-shaped avoiding groove is 2.5-2.8 mm.

[0019] In some embodiments of the present application, the depth of the arc-shaped avoiding groove is 2.6-3.6 mm.

[0020] In some embodiments of the present application, the depth of the arc-shaped avoiding groove is 3-3.2 mm.

[0021] In a second aspect, the present application also provides a bone conduction earphone comprising the sealing structure of any one of the above embodiments.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The present application provides a sealing structure and a bone conduction earphone. The sealing structure comprises a shell, a cover, a circuit board, a key assembly, a sealing element and a rear hanger. The shell is provided with an accommodating groove on one side. The cover is arranged at the opening of the accommodating groove. The circuit board and the key assembly electrically connected to the circuit board are arranged in the accommodating groove. The sealing element is arranged between the circuit board and the cover and abuts against the side wall of the accommodating groove. An annular glue accommodating groove for accommodating sealing glue is arranged on the circumferential edge of the side of the sealing element away from the circuit board. When the sealing glue in the annular glue accommodating groove solidifies, on the one hand, it can seal the gap between the sealing element and the side wall of the accommodating groove, thereby preventing water, sweat and the like from contacting the circuit board or the key assembly through the gap between the sealing element and the side wall of the accommodating groove to cause short circuit, improving the waterproof and sweatproof capability and effectively prolonging the service life of the circuit board and the key assembly. On the other hand, the solidified sealing glue also has adhesion, which is beneficial to improving the installation stability of the sealing element, thereby being beneficial to ensuring the stability of the gap between the sealing element and the side wall of the accommodating groove.

[0024] Meanwhile, the circumferential wall of the shell is provided with a mounting hole in communication with the accommodating groove, one end of the rear hanging piece is arranged in the accommodating groove through the mounting hole, and an arc-shaped avoiding groove that is matched with the rear hanging piece and in communication with the annular glue accommodating groove is arranged on the circumferential wall of the sealing piece, so that part of the sealing glue in the annular glue accommodating groove can flow into the arc-shaped avoiding groove and fill the gap between the circumferential wall of the arc-shaped avoiding groove and the rear hanging piece, thereby preventing the problem of short circuit caused by water, sweat and the like contacting the circuit board or the key assembly through the gap between the rear hanging piece and the mounting hole after the part of the sealing glue solidifies, improving the waterproof and sweatproof capability and effectively prolonging the service life of the circuit board and the key assembly. On the other hand, the part of the sealing glue also has the adhesion after solidification, which is beneficial to improving the installation stability of the rear hanging piece. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0026] Figure 1 A perspective view of a sealing structure in some embodiments of the present application is shown;

[0027] Figure 2 A perspective view of a sealing structure without a cover in some embodiments of the present application is shown;

[0028] Figure 3 An exploded view of a sealing structure in some embodiments of the present application is shown;

[0029] Figure 4 A perspective view of a sealing piece in some embodiments of the present application is shown;

[0030] Figure 5 A perspective view of a bone conduction earphone in some embodiments of the present application is shown.

[0031] Main element symbol explanation:

[0032] 100 - sealing structure;

[0033] 110 - shell; 111 - accommodating groove; 1111 - second glue accommodating groove; 112 - mounting hole;

[0034] 120 - cover;

[0035] 130 - circuit board;

[0036] 140 - key assembly;

[0037] 150-seal; 151-annular glue groove; 1511-first glue groove; 152-arc-shaped avoiding groove;

[0038] 160-posterior hanger;

[0039] 1000-bone conduction earphone. DETAILED DESCRIPTION

[0040] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “plurality” is two or more, unless otherwise explicitly specified and limited.

[0043] In the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. 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.

[0044] In the present application, unless specifically defined and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0045] As shown in Figure 1 , Figure 2 and Figure 3 , the embodiment of the present application provides a sealing structure 100, mainly applied to a bone conduction earphone 1000. The sealing structure 100 comprises a shell 110, a cover 120, a circuit board 130, a key assembly 140, a sealing member 150 and a rear hanging piece 160.

[0046] Among them, one side of the shell 110 is provided with a containing groove 111, and the circumferential wall of the shell 110 is provided with a mounting hole 112 communicated with the containing groove 111, and the cover 120 is covered at the slot opening of the containing groove 111. The circuit board 130 is arranged in the containing groove 111, the key assembly 140 is arranged in the containing groove 111, and is electrically connected with the circuit board 130.

[0047] Referring to Figure 4 , the sealing member 150 is arranged between the circuit board 130 and the cover 120, and abuts against the side wall of the containing groove 111, and the circumferential edge of one side of the sealing member 150 away from the circuit board 130 is provided with an annular glue containing groove 151 for containing sealing glue. One end of the rear hanging piece 160 is arranged in the mounting hole 112 in the containing groove 111, the circumferential wall of the sealing member 150 is provided with an arc-shaped avoiding groove 152 matched with the rear hanging piece 160, and the arc-shaped avoiding groove 152 is communicated with the annular glue containing groove 151.

[0048] The sealing structure 100 provided by the embodiment of the present application can prevent the problem of short circuit caused by water, sweat, etc. contacting the circuit board 130 or the key assembly 140 through the gap between the sealing member 150 and the side wall of the accommodating groove 111, improve the waterproof and sweatproof capability, and effectively prolong the service life of the circuit board 130 and the key assembly 140. On the other hand, the sealant has adhesion after solidification, which is beneficial to improve the installation stability of the sealing member 150, thereby ensuring the stability of the gap between the sealing member 150 and the side wall of the accommodating groove 111.

[0049] Meanwhile, the circumferential wall of the shell 110 is provided with a mounting hole 112 in communication with the accommodating groove 111, one end of the rear hanging member 160 is arranged in the accommodating groove 111 through the mounting hole 112, and an arc-shaped avoiding groove 152 is arranged on the circumferential wall of the sealing member 150 and in communication with the annular sealant accommodating groove 151 and matched with the rear hanging member 160. Thus, part of the sealant in the annular sealant accommodating groove 151 can flow into the arc-shaped avoiding groove 152 and fill the gap between the circumferential wall of the arc-shaped avoiding groove 152 and the rear hanging member 160. Thus, after solidification of the part of the sealant, the gap between the circumferential wall of the arc-shaped avoiding groove 152 and the rear hanging member 160 can be sealed, thereby preventing the problem of short circuit caused by water, sweat, etc. contacting the circuit board 130 or the key assembly 140 through the gap between the rear hanging member 160 and the mounting hole 112, improving the waterproof and sweatproof capability, and effectively prolonging the service life of the circuit board 130 and the key assembly 140. On the other hand, the part of the sealant has adhesion after solidification, which is beneficial to improve the installation stability of the rear hanging member 160.

[0050] For example, the circuit board 130 can be a printed circuit board, the key assembly 140 can include a button and a control switch, the button is in abutment with the control switch, and the control switch is electrically connected with the circuit board 130. The material of the sealing member 150 can be rubber or silicone.

[0051] As shown in Figure 2 , Figure 3 and Figure 4 , in one embodiment of the present application, the bottom wall of the annular sealant accommodating groove 151 is provided with a plurality of first sealant accommodating grooves 1511, and the plurality of first sealant accommodating grooves 1511 are arranged at intervals along the circumference of the sealing member 150.

[0052] In the embodiment, by arranging the first glue accommodating grooves 1511 on the bottom wall of the annular glue accommodating groove 151, the contact area between the sealant and the side wall of the accommodating groove 111 and the seal 150 can be effectively increased, so that the waterproof and sweatproof performance and the installation stability of the seal 150 can be improved.

[0053] As shown in Figure 2 and Figure 3 In the above-mentioned embodiments of the present application, the side wall of the accommodating groove 111 is provided with a plurality of second glue accommodating grooves 1111, and the plurality of second glue accommodating grooves 1111 are arranged along the inner circumferential direction of the shell 110.

[0054] In the embodiment, by arranging the second glue accommodating grooves 1111 on the side wall of the accommodating groove 111 along the inner circumferential direction of the shell 110, the contact area between the sealant and the side wall of the accommodating groove 111 and the seal 150 can be further increased, so that the waterproof and sweatproof performance and the installation stability of the seal 150 can be further improved.

[0055] As shown in Figure 2 and Figure 3 In some embodiments, the plurality of second glue accommodating grooves 1111 can be in one-to-one correspondence with the plurality of first glue accommodating grooves 1511.

[0056] In other embodiments, the plurality of second glue accommodating grooves 1111 and the plurality of first glue accommodating grooves 1511 are staggered.

[0057] In any one of the above-mentioned embodiments of the present application, the groove width of the annular glue accommodating groove 151 is 1.2-1.6mm.

[0058] In the embodiment, by controlling the groove width of the annular glue accommodating groove 151 to be between 1.2mm and 1.6mm, on the one hand, the groove width of the annular glue accommodating groove 151 can be prevented from being too small, which can cause the glue accommodating capacity of the annular glue accommodating groove 151 to be too small and affect the waterproof and sweatproof performance and the installation stability. On the other hand, the groove width of the annular glue accommodating groove 151 can be prevented from being too large, which can cause too much sealant and waste of sealant.

[0059] For example, the groove width of the annular glue accommodating groove 151 can be 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, etc., and can be designed according to the actual needs of the product, which will not be listed here.

[0060] In any one of the above-mentioned embodiments of the present application, the groove depth of the annular glue accommodating groove 151 is 0.5-1mm.

[0061] In the embodiment, the groove depth of the annular glue containing groove 151 is controlled between 0.5mm and 1mm, which can avoid the groove depth of the annular glue containing groove 151 being too small to affect the waterproof and sweatproof performance and installation stability of the annular glue containing groove 151, and can also avoid the groove depth of the annular glue containing groove 151 being too large to cause waste of the sealant.

[0062] For example, the groove depth of the annular glue containing groove 151 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc., which can be designed according to the actual needs of the product.

[0063] In any one of the above embodiments of the application, the radius of the arc-shaped avoiding groove 152 is 2.5-2.8mm.

[0064] In the embodiment, the radius of the arc-shaped avoiding groove 152 is controlled between 2.5mm and 2.8mm, which can avoid the radius of the arc-shaped avoiding groove 152 being too small to cause the technical problem of structural interference with the rear hanging piece 160, and can also avoid the radius of the arc-shaped avoiding groove 152 being too large to cause the technical problem of the gap between the arc-shaped avoiding groove 152 and the circumferential wall of the rear hanging piece 160 being too large, thereby causing waste of the sealant.

[0065] For example, the radius of the arc-shaped avoiding groove 152 can be 2.5mm, 2.6mm, 2.7mm, 2.8mm, etc., which can be designed according to the actual needs of the product.

[0066] In any one of the above embodiments of the application, the groove depth of the arc-shaped avoiding groove 152 is 2.6-3.6mm.

[0067] In the embodiment, the groove depth of the arc-shaped avoiding groove 152 is controlled between 2.6mm and 3.6mm, which can avoid the groove depth of the arc-shaped avoiding groove 152 being too small to cause the technical problem of structural interference with the rear hanging piece 160, and can also avoid the groove depth of the arc-shaped avoiding groove 152 being too large to cause the technical problem of the gap between the arc-shaped avoiding groove 152 and the end wall of the rear hanging piece 160 being too large, thereby causing waste of the sealant.

[0068] For example, the groove depth of the arc-shaped avoiding groove 152 can be 2.6mm, 2.7mm, 2.8mm, 3mm, 3.2mm, 3.5mm, 3.6mm, etc., which can be designed according to the actual needs of the product.

[0069] Preferably, the groove depth of the arc-shaped avoiding groove 152 is 3-3.2mm. More preferably, the groove depth of the arc-shaped avoiding groove 152 is 3.1mm.

[0070] As shown in Figure 5 The bone conduction earphone 1000 has the sealing structure 100 in any of the above embodiments, and thus has all the beneficial effects of the sealing structure 100, which will not be repeated here.

[0071] The bone conduction earphone 1000 has the sealing structure 100 in any of the above embodiments, and thus has all the beneficial effects of the sealing structure 100, which will not be repeated here.

[0072] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it is to be understood that the above-described embodiments are exemplary, and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A sealing structure, characterized in that, include: The housing has a receiving groove on one side and a mounting hole communicating with the receiving groove on the circumferential wall of the housing. A cover is provided at the opening of the receiving groove; The circuit board is disposed within the receiving groove; A button assembly is disposed within the receiving slot and is electrically connected to the circuit board; A sealing element is disposed between the circuit board and the cover and abuts against the side wall of the receiving groove. The circumferential edge of the sealing element away from the circuit board has an annular sealant groove for accommodating sealant. The rear hanger has one end inserted through the mounting hole and positioned in the receiving groove. The circumferential wall of the seal has an arc-shaped clearance groove adapted to the rear hanger, and the arc-shaped clearance groove is connected to the annular rubber groove.

2. The sealing structure according to claim 1, characterized in that, The bottom wall of the annular adhesive groove is provided with a plurality of first adhesive grooves, which are spaced apart along the circumference of the seal.

3. The sealing structure according to claim 2, characterized in that, The sidewall of the receiving groove is provided with a plurality of second adhesive receiving grooves, which are spaced apart along the inner circumference of the shell.

4. The sealing structure according to claim 3, characterized in that, The plurality of second adhesive reservoirs are connected to the plurality of first adhesive reservoirs one by one.

5. The sealing structure according to any one of claims 1 to 4, characterized in that, The width of the annular rubber groove is 1.2-1.6 mm.

6. The sealing structure according to any one of claims 1 to 4, characterized in that, The depth of the annular rubber groove is 0.5-1mm.

7. The sealing structure according to any one of claims 1 to 4, characterized in that, The radius of the arc-shaped clearance groove is 2.5-2.8 mm.

8. The sealing structure according to any one of claims 1 to 4, characterized in that, The depth of the arc-shaped clearance groove is 2.6-3.6 mm.

9. The sealing structure according to claim 8, characterized in that, The depth of the arc-shaped clearance groove is 3-3.2 mm.

10. A bone conduction headphone, characterized in that, The sealing structure includes any one of claims 1 to 9.

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