Earphone button waterproof structure and earphone

Abstract

The utility model provides an earphone button waterproof structure and an earphone, the earphone button waterproof structure comprises a housing, the housing is provided with a mounting groove, the housing comprises a fixing part, the fixing part surrounds the mounting groove, the inner wall of the housing is provided with a fixing groove, one side of a rubber pad is connected with a rubber wall, one end of the rubber wall back to the rubber pad is connected in the fixing groove, the rubber pad is provided with a first connecting groove, and the first connecting groove is provided with a second connecting groove. The first connecting groove is matched with the fixing part, a water absorption silica gel strip is arranged in the first connecting groove, a plurality of vent holes are formed in the fixing part, a plurality of positioning holes are formed in the rubber mat and penetrate through the rubber mat, a plurality of positioning columns are arranged on one face of the key cap, and the positioning holes are matched with the positioning columns. The first connecting groove is matched with the fixing part, so that the sealing performance is enhanced, meanwhile, water left between the rubber mat and the fixing part is absorbed through the water-absorbing silica gel strip, the contact between the residual water and air is increased through the vent holes, air drying of the water and further air drying of the water-absorbing silica gel strip are facilitated, and the service life of the earphone is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to earphone technical field, especially earphone button waterproof structure and earphone. BACKGROUND

[0002] With the technical progress of consumer electronics, various daily wearing electronic devices begin to have requirements on waterproof performance, the button of the electronic device has a certain gap due to the space left for the button activity, and water is more likely to enter, so the waterproof of the button structure is crucial.

[0003] The waterproof effect of the earphone button is mainly achieved by reducing the gap through the one-piece design of the internal structure of the button to improve the waterproof performance, and by setting a waterproof structure to isolate the external water from the internal electronic elements, such as commonly using a film with waterproof performance, and how to connect the earphone shell and internal structure with the waterproof material in the waterproof structure and ensure a certain sealing directly affects the waterproof effect of the waterproof structure.

[0004] The existing waterproof structure usually relies on glue to connect the film with the shell of the earphone, however, the glue is not stable and aging, which makes the connection part unstable, the improved waterproof structure adopts the way of clamping and fixing between parts, such as clamping the outer edge of the film to the earphone shell, however, due to the certain stroke of the button, the film deforms when the button is pressed, the gap between the edge of the film and the earphone shell is easy to increase, if water enters at this time, the water is easy to stay in the gap when the button and the film reset, and due to the very narrow gap when the button is not pressed, it is difficult to dry with air, which is easy to cause the increase of water vapor in the earphone shell, and has a negative impact on the service life of the parts of the earphone. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide an earphone button waterproof structure and earphone, which aims to solve the problem that the elastic part in the waterproof structure of the prior art is easy to cause water to enter the gap due to deformation and difficult to dry.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0007] The utility model provides an earphone key waterproof structure, including the casing, the casing is provided with containing cavity, the casing is seted up the installation groove on, the installation groove is used to install the key cap, the casing includes fixed part, the fixed part surrounds the installation groove, the inner wall of casing is provided with fixed groove around the fixed part, the containing cavity is provided with the rubber pad, one side of rubber pad is connected with annular glue wall, the one end of glue wall is connected in the fixed groove to the rubber pad, the one side of rubber pad is connected with annular first connecting groove towards the glue wall, the first connecting groove is adapted with the fixed part, the first connecting groove is provided with water absorption silica gel strip, a plurality of air holes are seted up on the fixed part, the air hole penetrates the fixed part, and the water absorption silica gel strip is position corresponding, a plurality of positioning holes are seted up on the rubber pad, the positioning hole penetrates the rubber pad, a plurality of positioning columns are seted up on the one side of key cap towards the rubber pad, and the positioning hole is adapted with the positioning column.

[0008] Compared with the prior art, the utility model has the advantages that: through the matching of the first connecting groove and the fixed part, the sealing performance is enhanced, and through the water absorption silica gel strip, the moisture between the rubber pad and the fixed part is absorbed, the water absorption silica gel expands after absorbing water, the gap between the fixed part and the water absorption silica gel strip is further reduced, and water is prevented from entering the fixed groove and the glue wall, thereby affecting the stability of the connection between the two, when the key is not pressed and the moisture in the gap is not fully exposed to air, the contact between the residual moisture and air is increased, which is beneficial to air drying the moisture and further air drying the water absorption silica gel strip, thereby improving the service life of the earphone, and when the water absorption silica gel strip expands, the extrusion of the rubber pad on the positioning column is increased, thereby further improving the sealing performance and the waterproof effect.

[0009] Furthermore, a second connecting groove is set on the side of the rubber pad away from the glue wall, the plurality of positioning holes are communicated with the second connecting groove, and the second connecting groove is used for containing glue.

[0010] Furthermore, the second connecting groove is annular, the end of the positioning column away from the key cap penetrates the positioning hole, and the end of the plurality of positioning columns away from the key cap is connected with the same sealing ring.

[0011] Furthermore, the second connecting groove is located in the projection of the sealing ring on the rubber pad.

[0012] Furthermore, the water absorption silica gel strip is annular and adapted with the first connecting groove, and the side of the water absorption silica gel strip towards the casing is connected with the fixed part.

[0013] Further, a convex strip is arranged on the side of the rubber pad facing the key cap, the convex strip is annular and forms a positioning cavity.

[0014] Further, a key part is arranged on the side of the key cap facing the rubber pad, and a key groove is arranged on the side of the rubber pad facing the key cap and matched with the key part.

[0015] Further, a pressure transmission part is arranged on the side of the rubber pad facing away from the key cap, the pressure transmission part is matched with the key groove in position, a main board is arranged in the accommodating cavity, a key switch is arranged on the side of the main board facing the key cap, the pressure transmission part is located between the rubber pad and the key switch and matched with the key switch in position.

[0016] An earphone comprises the earphone key waterproof structure as described in the above technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the earphone key waterproof structure in the embodiment of the utility model;

[0018] Figure 2 It is a structural schematic view of the rubber pad in the earphone key waterproof structure in the embodiment of the utility model;

[0019] Figure 3 It is a disassembled structural schematic view of the rubber pad and the sealing ring in the earphone key waterproof structure in the embodiment of the utility model;

[0020] Figure 4 It is a structural schematic view of the rubber pad and the sealing ring in the earphone key waterproof structure in the embodiment of the utility model;

[0021] Figure 5 It is a partial structural schematic view of pressing the key cap in the earphone key waterproof structure in the embodiment of the utility model;

[0022] Explanation of main element symbols:

[0023] housing 100 fixed part 110 vent hole 111 fixed groove 120 rubber pad 200 rubber wall 210 first connecting groove 220 water-absorbing silica gel strip 221 convex strip 230 positioning hole 240 key groove 250 pressure transmission part 251 second connecting groove 260 key cap 300 positioning column 310 key part 320 sealing ring 400 main plate 500 key switch 510

[0024] The following specific embodiments will further illustrate the utility model in combination with the above drawings. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See also Figures 1 to 4 The earphone button waterproof structure in the embodiment of the present invention includes a housing 100, a housing 100 having an accommodating cavity, a mounting groove formed on the housing 100, and a mounting groove for mounting a button cap 300. The housing 100 includes a fixing portion 110, the fixing portion 110 surrounding the mounting groove, a fixing groove 120 formed on the inner wall of the housing 100 surrounding the fixing portion 110, a rubber pad 200 is provided in the accommodating cavity, one side of the rubber pad 200 is connected to a ring-shaped rubber wall 210, and the end of the rubber wall 210 facing away from the rubber pad 200 is connected to the fixing groove 120. 0, the rubber pad 200 is provided with a first annular connecting groove 220 on a side facing the rubber wall 210, and the first connecting groove 220 is adapted to the fixing portion 110. A water-absorbing silicone strip 221 is provided in the first connecting groove 220, and the water-absorbing silicone strip 221 is annular and adapted to the first connecting groove 220. The water-absorbing silicone strip 221 is connected to the fixing portion 110 on a side facing the housing 100, and a plurality of ventilation holes 111 are provided on the fixing portion 110, and the ventilation holes 111 pass through the fixing portion 110 and correspond to the positions of the water-absorbing silicone strip 221. Preferably, the fixing portion 110 is adjacent to the fixing groove 120, and the adhesive wall 210 is adjacent to the first connecting groove 220. The fixing portion 110 includes a boss, which is located at the bottom of the side of the fixing portion 110 facing the key cap 300 and surrounds the mounting groove. The boss is used to limit the downward travel of the key cap 300. The fixing groove 110 and the adhesive wall 210 are connected by adhesive. It can be understood that, please refer to Figure 5The glue pad 200 is deformed when the key cap 300 is pressed, the gap between the fixed part 110 and the water-absorbing silica gel strip 221 is increased due to the deformation, and if water enters at this time, part of the water will enter the gap. The water-absorbing silica gel strip 221 has a certain absorption effect on water, and expands after absorbing water, which helps to reduce the gap to improve the sealing performance. When the key cap 300 is reset, the shape of the glue pad 200 is restored, the gap is reduced, and the water-absorbing silica gel strip 221 increases the contact area with air through the air vent 111, which is beneficial to the dispersion of water and prevents water vapor from accumulating inside the shell 100, thereby preventing negative effects on the service life of the earphone.

[0029] A plurality of positioning holes 240 are formed in the glue pad 200, the positioning holes 240 penetrate the glue pad 200, a plurality of positioning columns 310 are arranged on the side of the key cap 300 facing the glue pad 200, the positioning holes 240 are matched with the positioning columns 310, a second connecting groove 260 is formed on the side of the glue pad 200 away from the glue wall 210, the plurality of positioning holes 240 are all connected to the second connecting groove 260, the second connecting groove 260 is used to accommodate glue, the second connecting groove 260 is annular, one end of the positioning column 310 away from the key cap 300 penetrates the positioning hole 240, one end of the plurality of positioning columns 310 away from the key cap 300 is connected to the same sealing ring 400, the second connecting groove 260 is located in the projection of the sealing ring 400 on the glue pad 200, and the positioning column 310 and the positioning hole 240 are in interference fit. Preferably, the plurality of positioning holes 240 are annularly and spacedly distributed, the second connecting groove 260 is filled with the glue and is used to bond the sealing ring 400, the projection area of the sealing ring 400 on the glue pad 200 is larger than the second connecting groove 260, and it can be understood that the second connecting groove 260 is covered by the glue and the sealing ring 400, which helps to further prevent water vapor from entering the bottom of the glue pad 200 through the gap between the positioning hole 240 and the positioning column 310, and the plurality of positioning columns 310 are all connected to the sealing ring 400, which helps to balance the stress during the pressing of the key, stabilize the key cap 300, and thus improve the key feeling, and further, when the water-absorbing silica gel strip 221 expands, the glue pad 200 has a certain elasticity, the water-absorbing silica gel strip 221 expands to make the glue pad 200 press the positioning column 310 more strongly, thereby improving the sealing performance and the waterproof effect of the earphone key waterproof structure.

[0030] The convex strip 230 is annular and encloses a positioning cavity which is matched with one end of the key cap 300 facing the rubber pad 200, the key cap 300 is provided with a key part 320 at one end facing the rubber pad 200, the rubber pad 200 is provided with a key slot 250 at one surface facing the key cap 300, the key slot 250 is matched with the key part 320, the rubber pad 200 is provided with a pressure transmission part 251 at one surface away from the key cap 300, the pressure transmission part 251 is in position correspondence with the key slot 250, the accommodating cavity is provided with a main board 500, the main board 500 is provided with a key switch 510 at one surface facing the key cap 300, the pressure transmission part 251 is located between the rubber pad 200 and the key switch 510 and in position correspondence with the key switch 510.

[0031] The utility model embodiment further provides an earphone, the earphone includes earphone key waterproof structure as above described in the embodiment.

[0032] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 utility model. 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 one or more embodiments or examples in a suitable manner.

[0033] The above described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A waterproof structure for earphone buttons, characterized in that: The keypad is provided with a housing, and the housing has a mounting groove, the mounting groove being used for mounting a button cap. The housing includes a fixing portion, the fixing portion surrounds the mounting groove, a fixing groove is provided on the inner wall of the housing around the fixing portion, a rubber pad is provided in the housing, one side of the rubber pad is connected to an annular rubber wall, the end of the rubber wall facing away from the rubber pad is connected to the fixing groove, a first annular connecting groove is provided on the side of the rubber pad facing the rubber wall, the first connecting groove is adapted to the fixing portion, a water-absorbing silicone strip is provided in the first connecting groove, a plurality of ventilation holes are provided on the fixing portion, the ventilation holes pass through the fixing portion and correspond to the positions of the water-absorbing silicone strips, a plurality of positioning holes are provided on the rubber pad, the positioning holes pass through the rubber pad, a plurality of positioning posts are provided on the side of the key cap facing the rubber pad, the positioning holes are adapted to the positioning posts.

2. The headphone button waterproof structure according to claim 1, characterized in that: A second connecting groove is provided on a side of the rubber pad facing away from the rubber wall, and a plurality of the positioning holes are connected to the second connecting groove, and the second connecting groove is used to accommodate the colloid.

3. The earphone button waterproof structure according to claim 2, characterized in that: The second connecting groove is annular, and one end of the positioning column facing away from the key cap passes through the positioning hole. The ends of several positioning columns facing away from the key cap are all connected to the same sealing ring.

4. The earphone button waterproof structure according to claim 3, characterized in that: The second connecting groove is located within the projection of the sealing ring toward the rubber pad.

5. The earphone button waterproof structure according to claim 1, characterized in that: The water-absorbing silicone strip is annular and fits into the first connecting groove. The side of the water-absorbing silicone strip facing the shell is connected to the fixing portion.

6. The earphone button waterproof structure according to claim 1, characterized in that: A convex strip is provided on one side of the rubber pad facing the key cap. The convex strip is annular and encloses a positioning cavity. The positioning cavity is adapted to one end of the key cap facing the rubber pad.

7. The earphone button waterproof structure according to claim 1, characterized in that: A button portion is provided on a side of the button cap facing the rubber pad, and a button groove is provided on a side of the rubber pad facing the button cap, and the button groove is adapted to the button portion.

8. The earphone button waterproof structure according to claim 7, characterized in that: A pressure transmission portion is provided on the side of the rubber pad facing away from the key cap, and the pressure transmission portion corresponds to the position of the key slot. A main board is provided in the accommodating cavity, and a key switch is provided on the side of the main board facing the key cap. The pressure transmission portion is located between the rubber pad and the key switch and corresponds to the position of the key switch.

9. A headset, characterized in that: The invention comprises the earphone button waterproof structure according to any one of claims 1 to 8.

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