CN219478114U

CN219478114U - Waterproof construction of earphone

Info

Publication number: CN219478114U
Application number: CN202320441711.7U
Authority: CN
Inventors: 毛华生; 马浩; 盖伟东
Original assignee: Dongguan Liesheng Electronic Co Ltd
Current assignee: Dongguan Liesheng Electronic Co Ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-08-04
Anticipated expiration: 2033-03-09

Abstract

The utility model discloses a waterproof structure of an earphone, which comprises an earphone seat, wherein key installation hole sites and interface installation hole sites are arranged on the earphone seat, and the keys comprise: the device comprises a pressing part made of a hard plastic material and a supporting part made of a flexible plastic material, wherein the pressing part is arranged on the supporting part, and a column body extends downwards from the bottom surface of the pressing part; the bearing part is fixedly sealed at the key installation hole site in an integral injection molding mode, and a cylinder groove matched with the cylinder is formed in the bearing part; the charging port is fixedly connected to the inner side of the interface mounting hole site, a sealing plug is connected to the interface mounting hole site, and the interface mounting hole site is sealed through close fit of the sealing plug and the interface mounting hole site. By adopting the technical scheme, the waterproof effect of the waterproof agent is greatly enhanced, and the waterproof effect of the waterproof agent can reach IPX7 level through test.

Description

Waterproof construction of earphone

Technical field:

the utility model relates to the technical field of earphone products, in particular to a waterproof structure of an earphone, which can improve the waterproof grade of the earphone.

The background technology is as follows:

in order to adapt to the use scene of the general wireless earphone, the earphone is required to achieve a certain waterproof effect. For example, the bluetooth wireless headset product produced by the applicant itself requires a waterproof grade up to IPX 6. For a common wireless earphone, in order to realize operation control of the earphone, a key (such as a key for adjusting volume) is arranged on the earphone. At present, keys in the earphone are pressed mechanically, so that an assembly gap is easily generated between the keys and the earphone, a sealing part is tight, and water is soaked into the shell, so that a higher waterproof level cannot be achieved.

In addition, the current wireless earphone is provided with a battery, so that the battery needs to be charged when the wireless earphone is used, the current charging interface is a miniature USB interface, and in order to prevent foreign matters or water molecules from entering the charging interface, a rubber plug is usually arranged on the charging interface, but the current rubber plug can prevent the foreign matters from entering, but has a certain defect on the waterproof effect, and cannot realize a higher waterproof grade.

In view of the above, the present inventors have proposed the following technical solutions for the guide ear waterproof level.

The utility model comprises the following steps:

the utility model aims to overcome the defects of the prior art and provide a waterproof structure of an earphone.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a waterproof construction of earphone, includes the earphone seat, the earphone seat on set up the button installation hole site that is used for installing the button and be used for installing the interface installation hole site that charges the mouth, the button include: the device comprises a pressing part made of a hard plastic material and a supporting part made of a flexible plastic material, wherein the pressing part is arranged on the supporting part, and a column body extends downwards from the bottom surface of the pressing part; the bearing part is fixedly sealed at the key installation hole site in an integral injection molding mode, and a cylinder groove matched with the cylinder is formed in the bearing part; the charging port is fixedly connected to the inner side of the interface mounting hole site, a sealing plug is connected to the interface mounting hole site, and the interface mounting hole site is sealed through close fit of the sealing plug and the interface mounting hole site.

Furthermore, in the above technical scheme, a switch is disposed in the earphone seat, and the switch is located below the cylinder groove, and by pressing the pressing portion, the cylinder forms downward pressure on the supporting portion, so as to push the cylinder groove to deform downward, and the pressure is transmitted to the switch to trigger the switch.

Furthermore, a hard plate is arranged between the cylinder groove and the switch in the technical scheme, and the hard plate is fixedly adhered to the bottom surface of the cylinder groove or the upper end of the switch.

Furthermore, the key installation hole site in the above technical scheme includes: the earphone comprises a pressing key groove formed along the outer surface of the earphone seat and used for accommodating the pressing part, a stepped groove formed along the inner surface of the earphone seat and used for being matched with the bearing part, and a flange positioned between the pressing key groove and the stepped groove.

Further, the cylinder groove on the supporting portion in the above technical scheme is disposed in a boss, and the boss protrudes from the upper surface of the supporting portion.

Furthermore, in the above technical solution, an upper annular groove is formed on the periphery of the upper surface of the boss, a lower protrusion corresponding to the switch is formed on the lower surface of the boss in a downward extending manner, and a hard plate is fixedly adhered to the bottom surface of the lower protrusion.

Furthermore, in the above technical scheme, an integrally formed connecting pin is further arranged beside the cylinder on the lower surface of the pressing part, and a connecting pin groove is formed in the bearing part corresponding to the connecting pin.

Further, the sealing plug in the above technical solution includes: the sealing cover body is provided with a connecting plug and a connecting plunger, wherein the connecting plug and the connecting plunger are formed by extending from the lower surface of the sealing cover body; the interface plug inserts in the socket of the charging port to the outer fringe of interface plug shaping have with charging port socket interference fit's bulge loop.

Further, the interface installation bit in the above technical solution includes: a cover body groove for accommodating the sealing cover body is formed along the outer surface of the earphone seat), and a charging hole which is arranged in the cover body groove and is used for being matched with the charging port and a connecting hole for inserting the connecting plunger are formed.

Furthermore, in the above technical solution, the connecting plunger includes from top to bottom: a sealing part with larger diameter and an extension part with smaller diameter, wherein the sealing part is provided with a sealing bulge.

When the utility model is used, a user presses the pressing part, and the pressure is transmitted to the bearing part by the cylinder, and the bearing part deforms under the pressure of the cylinder and extends downwards because the whole bearing part is softer, so that the pressure is transmitted to the switch below to trigger the switch. When the pressing force of the user disappears, the supporting part elastically resets, and at the moment, the switch stops triggering. By adopting the technical scheme, the waterproof effect of the waterproof agent is greatly enhanced, and the waterproof effect of the waterproof agent can reach IPX7 level through test.

Description of the drawings:

fig. 1 is a perspective view of the present utility model applied to a bone conduction headset;

FIG. 2 is an exploded perspective view of the present utility model;

FIG. 3 is an exploded view of the assembly of the present utility model;

fig. 4 is an assembly view of a key part in the present utility model.

Figure 5 is a cross-sectional view of a sealing plug in accordance with the present utility model.

The specific embodiment is as follows:

the utility model will be further described with reference to specific examples and figures.

The utility model relates to a waterproof structure of an earphone, which is shown in fig. 1, and is a perspective view of the earphone applied to a bone conduction earphone 7, wherein an ear-hanging part of the bone conduction earphone 7 is used as a middle ear seat 1 of the utility model, a control circuit is arranged in the middle ear seat, keys and a charging port are arranged on the surface of the ear seat, and waterproof design is needed. The following describes the present utility model in detail with reference to bone conduction headphones.

As shown in fig. 2 to 5, the present utility model includes: a headset base 1. The earphone seat 1 is provided with a key installation hole site 11 for installing the key 2 and an interface installation hole site 12 for installing the charging port 3.

The key 2 includes: a pressing portion 21 and a supporting portion 22. The pressing part 21 is formed by injection molding of a hard plastic material. The support 22 is made of flexible plastic material, such as silica gel, rubber, etc. During installation, the bearing part 22 and the shell part of the earphone seat 1 are manufactured in an integral molding mode, and the inner space and the outer space of the key installation hole site 11 are completely isolated and sealed by combining injection molding, and the pressing part 21 is installed on the bearing part 22.

The lower surface of the pressing portion 21 is integrally formed with a cylinder 211 and a connecting pin 212. In this embodiment, two columns 211 and two connecting pins 212 are provided, wherein the columns 211 correspond to the positions of the switches 5, and in order to avoid interference, they are located outside the pressing portion 21, and the connecting pins 212 are located at the intermediate positions of the two columns 211. The switch 5 is mounted on the circuit board in the earphone seat 1, and the switch 5 is located under the column groove 221, and by pressing the pressing portion 21, the column 211 forms downward pressure on the supporting portion 22, so as to push the column groove 221 to deform downward, and the pressure is transmitted to the switch 5 to trigger the switch 5.

The support portion 22 is provided with a cylinder groove 221 and a connecting pin groove 224 corresponding to the cylinder 211 and the connecting pin 212, respectively. Since the holding portion 22 is required not only to hold the pressing portion 21 but also to complete the downward deformation at the time of pressing to trigger the lower switch 5. Therefore, a space capable of deforming up and down is required, and as shown in fig. 4, the cylindrical groove 221 of the supporting portion 22 is disposed in a boss 220, and the boss 220 protrudes from the upper surface of the supporting portion 22. An upper annular groove 222 is formed on the periphery of the upper surface of the boss 220, and a lower protrusion 223 corresponding to the switch 5 is formed on the lower surface of the boss 220 in a downward extending manner. Because of the upper ring groove 222 and the boss 220, the boss 220 has a larger movable space in the process of being pressed down by the column body 211 to deform, and key triggering can be successfully completed. Meanwhile, in order to improve the touch of the key, a hard plate 6 is fixedly adhered to the bottom surface of the lower convex portion 223, and when the key is pressed, the lower convex portion 223 transmits pressure to the switch 5 through the hard plate 6, so that the hard plate 6 of the switch 5 is directly triggered, and the touch of the user is improved. The hard plate 6 can be made of hard plastic, such as PET material.

The pressing part 21 and the supporting part 22 can be fixed by adopting a glue bonding mode.

Referring to fig. 4, the key mounting hole 11 includes: a key groove 111 formed along an outer surface of the earphone seat for receiving the pressing portion 21, a stepped groove 113 formed along an inner surface of the earphone seat for engaging the receiver 22, and a flange 112 between the key groove 111 and the stepped groove 113. The key groove 111 is used for providing an accommodating space for the pressing portion 21, and the flange 112 can play a role in limiting the descending distance of the pressing portion 21, so as to play a limiting role and prevent the pressing portion 21 from being pressed too far down and damaging the supporting portion 22.

The charging port 3 is fixedly connected to the inner side of the interface installation hole site 12, a sealing plug 4 is connected to the interface installation hole site 12, and the interface installation hole site 12 is sealed through the close fit between the sealing plug 4 and the interface installation hole site 12. In this embodiment, the charging port 3 employs a TPYE-C interface,

referring to fig. 5, the sealing plug 4 includes: a sealing cap 41, a connector plug 42 and a connecting plunger 43 formed by extending from the lower surface of the sealing cap 41; the interface plug 42 insert in the socket of charging mouth 3 to the outer fringe shaping of interface plug 42 have with charging mouth socket interference fit's bulge loop 421, through bulge loop 421 and charging mouth 3 socket interference fit, can be with charging mouth 3's socket totally seal, prevent that moisture from soaking in, thereby play good water-proof effects.

The interface mounting location 12 includes: a cover groove 121 for accommodating the sealing cover 41, a charging hole 122 for matching with the charging port 3 and a connecting hole 123 for inserting the connecting plunger 43 are formed along the outer surface of the earphone seat 1. The connecting plunger 43 includes from top to bottom: a sealing portion 431 with a larger diameter and an extension portion 432 with a smaller diameter, wherein a sealing protrusion 433 is formed on the sealing portion 431. The sealing protrusion 433 not only has the effect of sealing the connecting hole 123, but also plays a role in connection, so that stable connection between the connecting plunger 43 and the connecting hole 123 is realized, and the sealing plug 4 is not caused to fall off.

By adopting the technical scheme, the waterproof effect of the waterproof agent is greatly enhanced, and the waterproof effect of the waterproof agent can reach IPX7 level through test.

It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.

Claims

1. The utility model provides a waterproof construction of earphone, includes earphone seat (1), earphone seat (1) on set up button installation hole site (11) that are used for installing button (2) and be used for installing interface installation hole site (12) of mouth (3) that charges, its characterized in that:

the key (2) comprises: the device comprises a pressing part (21) made of a hard plastic material and a supporting part (22) made of a flexible plastic material, wherein the pressing part (21) is arranged on the supporting part (22), and a column body (211) extends downwards from the bottom surface of the pressing part (21); the bearing part (22) is fixedly sealed at the key installation hole position (11) in an integral injection molding mode, and a cylinder groove (221) matched with the cylinder (211) is formed in the bearing part (22);

the charging port (3) is fixedly connected to the inner side of the interface installation hole site (12), a sealing plug (4) is connected to the interface installation hole site (12), and the interface installation hole site (12) is sealed through close fit of the sealing plug (4) and the interface installation hole site (12).

2. The waterproof structure of an earphone according to claim 1, wherein: the earphone seat (1) in be provided with switch (5), and switch (5) are located cylinder groove (221) below, through pressing press portion (21), make cylinder (211) form decurrent pressure to supporting portion (22), promote cylinder groove (221) deformation downwards, on transmitting pressure to switch (5), trigger switch (5).

3. A waterproof structure of an earphone according to claim 2, wherein: a hard plate (6) is arranged between the cylinder groove (221) and the switch (5), and the hard plate (6) is fixedly adhered to the bottom surface of the cylinder groove (221) or the upper end of the switch (5).

4. The waterproof structure of an earphone according to claim 1, wherein: the key installation hole site (11) include: a key groove (111) formed along the outer surface of the earphone seat for accommodating the pressing part (21), a step groove (113) formed along the inner surface of the earphone seat for matching with the bearing part (22), and a flange (112) positioned between the key groove (111) and the step groove (113).

5. A waterproof structure of an earphone according to claim 2, wherein: the column groove (221) on the supporting part (22) is arranged in a boss (220), and the boss (220) protrudes out of the upper surface of the supporting part (22).

6. The waterproof structure of an earphone according to claim 5, wherein: an upper annular groove (222) is formed on the periphery of the upper surface of the boss (220), a lower convex part (223) corresponding to the switch (5) is formed on the lower surface of the boss (220) in a downward extending mode, and a hard plate (6) is fixedly adhered to the bottom surface of the lower convex part (223).

7. The waterproof structure of an earphone according to claim 1, wherein: the side of the cylinder (211) on the lower surface of the pressing part (21) is also provided with an integrally formed connecting pin (212), and the bearing part (22) is provided with a connecting pin groove (224) corresponding to the connecting pin (212).

8. A waterproof structure of an earphone according to any one of claims 1 to 7, wherein: the sealing plug (4) comprises: a sealing cover body (41), an interface plug (42) and a connecting plunger (43) which are formed by extending from the lower surface of the sealing cover body (41); the interface plug (42) is inserted into the socket of the charging port (3), and a convex ring (421) in interference fit with the socket of the charging port is formed on the outer edge of the interface plug (42).

9. The waterproof structure of an earphone according to claim 8, wherein: the interface installation hole site (12) includes: a cover body groove (121) for accommodating the sealing cover body (41) is formed along the outer surface of the earphone seat (1), and a charging hole (122) and a connecting hole (123) for inserting the connecting plunger (43) are formed in the cover body groove (121) and are used for matching with the charging port (3).

10. The waterproof structure of an earphone according to claim 8, wherein: the connecting plunger (43) comprises from top to bottom: a sealing part (431) with a larger diameter and an extension part (432) with a smaller diameter, wherein a sealing bulge (433) is formed on the sealing part (431).