KR20220112504A - Mount-type earjack and electronic device with the same - Google Patents

Abstract

According to various embodiments of the present disclosure, disclosed is an electronic device comprising an ear jack directly mounted on a printed circuit board. The electronic device according to various embodiments comprises: a housing including a printed circuit board having a plurality of openings formed thereon, a front plate disposed facing a first direction, a rear plate disposed facing a second direction opposite to the first direction, and a side member disposed in a direction perpendicular to the first direction and the second direction and surrounding an internal space between a first plate and a second plate; and an ear jack mounted on the printed circuit board and connectable to an external device through an ear jack hole formed in the side member, wherein the ear jack may include: an ear jack housing including a jack hole and a first surface facing the first direction, a second surface facing the second direction, and a side surface facing the first direction and the second direction, respectively, perpendicular to each other; a first waterproof structure disposed on the first surface facing the first direction; a plurality of connection terminals supported by the ear jack housing, each part of which is disposed to be exposed to the second surface in the second direction, and the part of which is inserted into the opening; and a second waterproof structure disposed on the second surface in the second direction and sealing some of the plurality of connection terminals. Other various embodiments are possible. According to various embodiments of the present invention, components such as a flexible circuit board or a BtoB connector can be eliminated, thereby contributing to the reduction in product costs.

Description

Mounting type ear jack and electronic device including same

Various embodiments of the present invention relate to a mounting structure of an ear jack included in an electronic device.

A component that connects the sound-related electrical signal of the electronic device to output or receive an input to an external sound device (eg, earphone or microphone) may be referred to as an earjack. By sending the corresponding electrical signal to the earphone, it is possible to listen to the sound through the corresponding device, or, conversely, by sending the acoustic signal of the microphone into the electronic device, the processing of the electrical signal may be possible.

In general, there is a standardized standard size for a jack, which is the counterpart of an ear jack, and a 3.5 pi jack is used for general portable communication electronic devices. The ear jack may include a terminal capable of making electrical contact with the jack, a jack hole into which the jack is inserted, and an ear jack housing capable of fixing the connection terminal. In order to move the electric (or sound) signal of the ear jack, a flexible circuit board (FPCB) for electrical connection with a printed circuit board (PCB) in the electronic device may be required.

In the case of an ear jack having a waterproof function mounted on an electronic device, the ear jack may be disposed in an assembly type to minimize exposure of the waterproof weak part. The assembly type ear jack may be electrically connected to a printed circuit board using a flexible circuit board (FPCB).

However, in the conventional assembly type ear jack, the size of the parts may be increased due to the addition of a mechanism structure for fixing parts.

For example, in the case of a conventional assembling type ear jack, since there is no separate fixing device other than fixing with a device, a separate mechanism structure for fastening the ear jack with a screw, for example, a coupling part may be required. If the ear jack is not secured by a separate mechanism structure, for example, a fastening part, leakage may occur, so a separate fastening structure may be an essential structure.

In addition, in the case of the conventional assembly method ear jack, it may be necessary to add a space for applying a waterproof coating agent and a mechanism for drawing out the waterproof coating agent to the weak waterproof part like the flexible circuit board (FPCB) drawing part of the ear jack. This addition of the mechanism structure may be a factor in increasing the part length size.

In addition, the conventional assembly method ear jack can increase the number of sub-components by mounting a flexible circuit board and a BtoB connector. For example, in the case of an Assembly Type Earjack, it is necessary to add parts due to the flexible circuit board and BtoB connector for the connection of the printed circuit board, and due to the increase in the number of corresponding sub-parts, all parts could be a factor in cost increase.

In addition, in the conventional assembly method ear jack, the path between the connection terminal and the printed circuit board may become longer, and as the corresponding path lengthens, a separate device mounting may be required to prevent deterioration of wireless communication or acoustic performance. Therefore, if the corresponding path can be designed to be short, the mounting of sub-components such as flexible circuit boards or sub-components for performance improvement can be omitted.

According to various embodiments of the present disclosure, it is an object to provide a mounting type ear jack capable of miniaturized design by reducing the width and length of the ear jack by eliminating a screw fastening structure and a flexible circuit board lead-out structure, and an electronic device including the same.

According to various embodiments of the present invention, there is provided a mounting type ear jack capable of directly disposing the ear jack on a printed circuit board by eliminating a screw fastening structure and a flexible circuit board lead-out structure, and an electronic device including the same.

According to various embodiments of the present invention, it is possible to delete the flexible circuit board and the BtoB connector for electrically connecting the ear jack to the printed circuit board, thereby contributing to cost reduction, and an electronic device including the same. is doing

According to various embodiments of the present disclosure, an electronic device includes a printed circuit board having a plurality of openings formed thereon, a front plate is disposed to face in a first direction, and a second direction is disposed to face in a second direction opposite to the first direction. a housing including a rear plate and a side member disposed in a direction perpendicular to the first and second directions, respectively, and surrounding an inner space between the first and second plates; and an ear jack mounted on the printed circuit board and connectable to an external device through an ear jack hole formed in the side member, wherein the ear jack includes a jack hole, a first surface facing the first direction; , an ear jack housing including a second surface facing the second direction and side surfaces facing each other perpendicular to the first and second directions; a first waterproof structure disposed on the first surface to face the first direction; a plurality of connection terminals supported by the ear jack housing, each part of which is exposed to the second surface in the second direction, and the part of which is respectively inserted into the opening; and a second waterproof structure disposed on the second surface to face the second direction and sealing a portion of the plurality of connection terminals.

According to various embodiments of the present disclosure, the ear jack includes a jack hole, a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and the first and second surfaces an ear jack housing including side surfaces facing each other in a direction perpendicular to the direction; a first waterproof structure disposed on the first surface to face the first direction; a plurality of connection terminals supported by the ear jack housing and arranged such that a portion thereof is exposed to the second surface in the second direction; and a second waterproof structure disposed on the second surface to face the second direction and sealing a portion of the plurality of connection terminals.

Since the ear jack according to various embodiments of the present disclosure has a reduced width and length, a mounting space for being disposed in the electronic device housing may be reduced.

The ear jack according to various embodiments of the present invention eliminates the screw fastening structure and the flexible circuit board lead-out structure, so that the ear jack can be directly mounted on the printed circuit board, thereby improving assembly.

According to various embodiments of the present invention, it is possible to delete parts such as a flexible circuit board or a BtoB connector, thereby contributing to product cost reduction.

1 is a perspective view illustrating a front surface of a mobile electronic device according to various embodiments of the present disclosure;
FIG. 2 is a perspective view illustrating a rear surface of the electronic device of FIG. 1 .
3 is an exploded perspective view illustrating an internal configuration of the electronic device of FIG. 1 .
4 is a perspective view illustrating a state in which an ear jack according to various embodiments of the present invention is disposed on a printed circuit board.
5A and 5B are perspective views respectively illustrating an ear jack according to various embodiments of the present invention.
6A is a front view showing an ear jack according to various embodiments of the present invention, FIG. 6B is a bottom view showing an ear jack according to various embodiments of the present invention, and FIG. 6C is an ear jack according to various embodiments of the present invention. is a plan view, and FIG. 6D is a side view showing an ear jack according to various embodiments of the present invention.
7 is an exploded perspective view showing an ear jack according to various embodiments of the present invention.
8 is an exemplary view showing a first penetration path through which moisture can permeate according to various embodiments of the present invention.
9 is an exemplary view showing the second and third penetration paths through which moisture can permeate according to various embodiments of the present invention.
10 is a view showing a part of the exposed connection terminal of the ear jack according to various embodiments of the present invention, and FIG. 11 is an enlarged view of a part of FIG. 10 .
12 is a front view illustrating a connection terminal according to various embodiments of the present disclosure;
13 is a plan view illustrating an extended portion of a second waterproof structure according to various embodiments of the present disclosure;
14 is a comparative view showing whether or not leakage occurs according to the order of applying epoxy and silicone in the waterproof structure of a portion of the connection terminal of the ear jack according to various embodiments of the present invention.
15 is a view comparing the overall width and length between the ear jack according to various embodiments of the present invention and the conventional ear jack.

Hereinafter, various embodiments of the present disclosure are described with reference to the accompanying drawings. However, this is not intended to limit the present disclosure to specific embodiments, and should be understood to cover various modifications, equivalents, and/or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals may be used for like components.

An electronic device according to various embodiments of the present disclosure may include, for example, a smartphone, a tablet personal computer (PC), a mobile phone, a video phone, and an e-book reader (e-). book reader), desktop PC (desktop personal computer), laptop PC (laptop personal computer), netbook computer (workstation), server, PDA (personal digital assistant), PMP (portable multimedia player), MP3 Players, mobile medical devices, cameras, or wearable devices (e.g. smart glasses, head-mounted-device (HMD)), electronic garments, electronic bracelets, electronic necklaces, electronic apps accessory, electronic tattoo, smart mirror, or smart watch).

1 is a perspective view illustrating a front surface of an electronic device according to various embodiments of the present disclosure; FIG. 2 is a perspective view illustrating a rear surface of the electronic device of FIG. 1 .

1 and 2 , an electronic device 100 according to various embodiments includes a first surface (or front surface) 110A, a second surface (or rear surface) 110B, and a first surface 110A and The housing 110 may include a side surface 110C surrounding the space between the second surfaces 110B. In another embodiment (not shown), the housing may refer to a structure forming a part of the first surface 110A, the second surface 110B, and the side surface 110C of FIG. 1 . According to various embodiments, the first surface 110A may be formed by the front plate 102 (eg, a glass plate comprising various coating layers, or a polymer plate) at least a portion of which is substantially transparent. The second surface 110B may be formed by the substantially opaque back plate 111 . The back plate 111 is formed by, for example, coated or colored glass, ceramic, polymer, metal (eg, aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. can be The side surface 110C is coupled to the front plate 102 and the rear plate 111 and may be formed by a side bezel structure (or "side member") 118 including a metal and/or a polymer. In some embodiments, the back plate 111 and the side bezel structure 118 are integrally formed and may include the same material (eg, a metal material such as aluminum).

In the illustrated embodiment, the front plate 102 includes two first regions 110D that extend seamlessly from the first surface 110A toward the rear plate 111 by bending the front plate. It may include both ends of the long edge of (102). In the illustrated embodiment (see FIG. 2 ), the rear plate 111 has two second regions 110E that extend seamlessly by bending from the second surface 110B toward the front plate 102 with long edges. It can be included at both ends. In some embodiments, the front plate 102 (or the back plate 111 ) may include only one of the first regions 110D (or the second regions 110E). In another embodiment, some of the first regions 110D or the second regions 110E may not be included. In the above embodiments, when viewed from the side of the electronic device 100 , the side bezel structure 118 is the first side bezel structure 118 on the side that does not include the first area 110D or the second area 110E as described above. It may have a thickness (or width) of 1, and a second thickness that is thinner than the first thickness on the side surface including the first region 110D or the second region 110E.

According to various embodiments, the electronic device 100 includes a display 101 , an audio module 103 , 107 , 114 , a sensor module 104 , 116 , 119 , a camera module 105 , 112 , 113 , and a key input. at least one of a device 117 , a light emitting element 106 , and connector holes 108 , 109 . In some embodiments, the electronic device 100 may omit at least one of the components (eg, the key input device 117 or the light emitting device 106 ) or additionally include other components.

According to various embodiments, the display 101 may be exposed, for example, through a substantial portion of the front plate 102 . In some embodiments, at least a portion of the display 101 may be exposed through the front plate 102 forming the first area 110D of the first surface 110A and the side surface 110C. In some embodiments, the edge of the display 101 may be formed to be substantially the same as an adjacent outer shape of the front plate 102 . In another embodiment (not shown), in order to expand the area to which the display 101 is exposed, the distance between the outer periphery of the display 101 and the outer periphery of the front plate 102 may be substantially the same.

In another embodiment (not shown), a recess or opening is formed in a part of the screen display area of the display 101, and the audio module 114 is aligned with the recess or the opening, the sensor It may include at least one of a module 104 , a camera module 105 , and a light emitting device 106 . In another embodiment (not shown), an audio module 114 , a sensor module 104 , a camera module 105 , a fingerprint sensor 116 , and a light emitting element 106 on the rear surface of the screen display area of the display 101 . ) may include at least one or more of. In another embodiment (not shown), the display 101 is coupled to or adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a digitizer that detects a magnetic field type stylus pen. can be placed. In some embodiments, at least a portion of the sensor module 104 , 119 , and/or at least a portion of a key input device 117 is located in the first area 110D and/or the second area 110E. can be placed.

According to various embodiments, the audio modules 103 , 107 , and 114 may include a microphone hole 103 and speaker holes 107 and 114 . In the microphone hole 103, a microphone for acquiring an external sound may be disposed therein, and in some embodiments, a plurality of microphones may be disposed to detect the direction of the sound. The speaker holes 107 and 114 may include an external speaker hole 107 and a receiver hole 114 for a call. In some embodiments, the speaker holes 107 and 114 and the microphone hole 103 may be implemented as one hole, or a speaker may be included without the speaker holes 107 and 114 (eg, a piezo speaker).

According to various embodiments, the sensor modules 104 , 116 , and 119 may generate an electrical signal or data value corresponding to an internal operating state of the electronic device 100 or an external environmental state. The sensor modules 104 , 116 , 119 include, for example, a first sensor module 104 (eg, a proximity sensor) and/or a second sensor module ( (not shown) (eg, a fingerprint sensor), and/or a third sensor module 119 (eg, HRM sensor) and/or a fourth sensor module 116 disposed on the second side 110B of the housing 110 . ) (eg fingerprint sensor). The fingerprint sensor may be disposed on the first surface 110A (eg, the display 101) as well as on the second surface 110B of the housing 110. The electronic device 100 may include a sensor module not shown, for example, For example, at least one of a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor 104 is further added. may include

According to various embodiments, the camera modules 105 , 112 , and 113 are disposed on the first camera device 105 on the first surface 110A of the electronic device 100 , and on the second surface 110B of the electronic device 100 . It may include a second camera device 112 , and/or a flash 113 . The camera module 105 , 112 may include one or more lenses, an image sensor, and/or an image signal processor. The flash 113 may include, for example, a light emitting diode or a xenon lamp. In some embodiments, two or more lenses (infrared cameras, wide angle and telephoto lenses) and image sensors may be disposed on one side of the electronic device 100 .

According to various embodiments, the key input device 117 may be disposed on the side surface 110C of the housing 110 . In another embodiment, the electronic device 100 may not include some or all of the above-mentioned key input devices 117 and the not included key input devices 117 are displayed on the display 101 as soft keys or the like. It may be implemented in other forms. In some embodiments, the key input device may include a sensor module 116 disposed on the second surface 110B of the housing 110 .

According to various embodiments, the light emitting device 106 may be disposed on the first surface 110A of the housing 110 , for example. The light emitting device 106 may provide, for example, state information of the electronic device 100 in the form of light. In another embodiment, the light emitting device 106 may provide, for example, a light source that is interlocked with the operation of the camera module 105 . The light emitting element 106 may include, for example, an LED, an IR LED, and a xenon lamp.

According to various embodiments, the connector holes 108 and 109 include a first connector hole 108 capable of receiving a connector (eg, a USB connector) for transmitting and receiving power and/or data with an external electronic device; and/or a second connector hole (eg, earphone jack) 109 capable of accommodating a connector for transmitting and receiving audio signals to and from an external electronic device.

3 is an exploded perspective view illustrating an internal configuration of the electronic device of FIG. 1 .

Referring to FIG. 3 , according to various embodiments, the electronic device 300 includes a side bezel structure 310 , a first support member 311 (eg, a bracket), a front plate 320 , a display 330 , It may include a printed circuit board 340 , a battery 350 , a second support member 360 (eg, a rear case), an antenna 370 , and a rear plate 380 . In some embodiments, the electronic device 300 may omit at least one of the components (eg, the first support member 311 or the second support member 360 ) or additionally include other components. . At least one of the components of the electronic device 300 may be the same as or similar to at least one of the components of the electronic device 100 of FIG. 1 or 2 , and overlapping descriptions will be omitted below.

According to various embodiments, the first support member 311 may be disposed inside the electronic device 300 and connected to the side bezel structure 310 , or may be integrally formed with the side bezel structure 310 . The first support member 311 may be formed of, for example, a metal material and/or a non-metal (eg, polymer) material. The first support member 311 may have a display 330 coupled to one side and a printed circuit board 340 coupled to the other side thereof. The printed circuit board 340 may be equipped with a processor, memory, and/or an interface. The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit, an image signal processor, a sensor hub processor, or a communication processor.

According to various embodiments, the memory may include, for example, volatile memory or non-volatile memory.

According to various embodiments, the interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and/or an audio interface. The interface may, for example, electrically or physically connect the electronic device 300 to an external electronic device, and may include a USB connector, an SD card/MMC connector, or an audio connector.

According to various embodiments, the battery 350 is a device for supplying power to at least one component of the electronic device 300 , for example, a non-rechargeable primary battery, or a rechargeable secondary battery, or fuel. It may include a battery. At least a portion of the battery 350 may be disposed substantially on the same plane as the printed circuit board 340 , for example. The battery 350 may be integrally disposed inside the electronic device 300 , or may be disposed detachably from the electronic device 300 .

According to various embodiments, the antenna 370 may be disposed between the rear plate 380 and the battery 350 . The antenna 370 may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and/or a magnetic secure transmission (MST) antenna. The antenna 370 may, for example, perform short-range communication with an external device or wirelessly transmit/receive power required for charging. In another embodiment, the antenna structure may be formed by a part of the side bezel structure 310 and/or the first support member 311 or a combination thereof.

4 is a perspective view illustrating a state in which an ear jack according to various embodiments of the present invention is disposed on a printed circuit board.

Referring to FIG. 4 , according to various embodiments, the ear jack 40 is an electrical connection device or a connection device, and a printed circuit board ( Example: It may be mounted on the printed circuit board 340 shown in FIG. According to various embodiments, a plurality of openings 340 and 3401 may be formed in the printed circuit board 340 (eg, the printed circuit board 340 illustrated in FIG. 3 ). For example, the opening 3400 may be an opening for receiving the ear jack, and the opening 3401 may be an opening through which a portion 420 of each connection terminal is inserted. According to various embodiments, the ear jack 40 may be a mounting type directly connected to one surface of the printed circuit board 340 . According to various embodiments, the ear jack 40 is mounted in a state accommodated in the opening while maintaining a state parallel to the opening 3400 formed in the printed circuit board 340 , and each connection terminal of the ear jack 40 . A portion 420 (eg, an end) of the portion 420 may be connected in such a way that it is inserted into each opening 3401 formed in the printed circuit board 340 . After the portion 420 of each connection terminal is inserted into each opening 3401 , a connection structure and a fixing structure may be formed by a soldering operation.

According to various embodiments, when the ear jack 40 is accommodated in the opening 3400 of the printed circuit board, the insertion height may be constantly maintained by the seating protrusion 414 .

A detailed configuration of the ear jack 40 for mounting directly on the printed circuit board 340 according to various embodiments will be described with reference to the following drawings.

5A and 5B are perspective views respectively illustrating an ear jack according to various embodiments of the present invention. 6A is a front view showing an ear jack according to various embodiments of the present invention, FIG. 6B is a bottom view showing an ear jack according to various embodiments of the present invention, and FIG. 6C is an ear jack according to various embodiments of the present invention. is a plan view, and FIG. 6D is a side view illustrating an ear jack according to various embodiments of the present invention. 7 is an exploded perspective view showing an ear jack according to various embodiments of the present invention.

5A to 7 , the ear jack 40 according to various embodiments may include an ear jack housing 41 , a plurality of connection terminals 42 , and at least one waterproof structure 43 . .

According to various embodiments, the ear jack housing 41 has a first surface 41a facing in a first direction (①) (eg, upward direction), and a second direction (②) opposite to the first direction (①). ) (eg; downward direction), and a plurality of side surfaces 41c directed perpendicular to the first and second directions (①,②). According to various embodiments, the ear jack housing 41 is an injection molded product and may include a jack hole 413 through which a connection part of an external device is inserted. For example, the external device may be a jack (not shown) that is a connection terminal. According to various embodiments, the jack hole may be spatially connected to the second connector hole (eg, the second connector hole 109 shown in FIG. 1 ).

According to various embodiments, the ear jack housing 41 includes at least one or more side protrusions 410 and 411 formed on both side surfaces 41c of the plurality of side surfaces 41c that are directed in a direction perpendicular to the direction in which the jack hole 413 is directed. may include. According to various embodiments, the side protrusions 410 and 411 are formed symmetrically or asymmetrically on the two side surfaces 41c, respectively, so that a portion 420 of each connection terminal 42 is accommodated and is a waterproof portion. can According to various embodiments, an auxiliary member 45 made of a rubber material may be disposed at the front of the ear jack housing 41 . The auxiliary relief 45 may be disposed to surround the entrance of the jack hole 413 .

According to various embodiments, in the ear jack 40 , at least one waterproof structure 43 , 46 may be disposed in order to seal the plurality of connection terminals 42 accommodated in the ear jack housing 41 from the external environment. According to various embodiments, the waterproof structure may include a first waterproof structure 43 covering the first surface 41a of the ear jack housing 41 . According to various embodiments, the first waterproof structure 43 is a waterproof cover for protecting the accommodated plurality of connection terminals 42 , and is an outermost waterproof member disposed on the first surface 41a of the ear jack housing 41 . can be For example, the first waterproof structure 43 may be formed of an epoxy material, which is applied to the first surface 41a of the ear jack housing 41 and then cured.

According to various embodiments, the first waterproof structure 43 may have a negative effect on the flow of the connection terminal 42 as the epoxy resin flows toward the connection terminal 42 and is cured during the epoxy resin application process. . According to various embodiments, the ear jack 40 may additionally include a dummy cover 44 for sealing the plurality of connection terminals 42 from an epoxy resin. According to various embodiments, the dummy cover 44 may be disposed between the plurality of connection terminals 42 accommodated in the ear jack housing 41 and the first waterproof structure 43 . According to various embodiments, the dummy cover 44 may be a protection member for preventing the epoxy resin, which is a material of the first waterproof structure 43 , from flowing to the connection terminals 42 . For example, the dummy cover may be made of FR4 (Frame Retardant 4) material.

According to various embodiments, each of the connection terminals 42 has a portion, for example, one end disposed to be exposed to the jack hole 413 , and the other portion, for example, the other end, from the second surface 41b of the ear jack housing 41 . It may be disposed to be exposed toward the second direction. According to various embodiments, a portion 420 of each of the connection terminals 42 is disposed on the side protrusions 410 and 411 , and an end of the portion 420 is exposed so as to be connected to a printed circuit board. According to various embodiments, one end of each connection terminal 42 may be connected to an external device, for example, a jack, and the other end may be connected to the printed circuit board 340 . According to various embodiments, each of the connection terminals 42 is bent in an alphabetic U shape, so that a portion 420 of each connection terminal 42 is directed in the second direction (②), and the portion 420 is a side protrusion. (410,411) can be accommodated.

According to various embodiments, seating protrusions 414 may be formed on both side surfaces 41c of the ear jack housing 41 . According to various embodiments, the seating protrusion 414 may be a protrusion serving as a stopper when the ear jack accommodates a printed circuit board.

8 is an exemplary view showing a first penetration path through which moisture can permeate according to various embodiments of the present invention. 9 is an exemplary view showing the second and third penetration paths through which moisture can permeate according to various embodiments of the present invention.

8 and 9 , according to various embodiments, the ear jack 40 protrudes toward the jack hole 413 with one end of each connection terminal 42 exposed into the jack hole 413 . and may be movably positioned, and the other end may be exposed while being fixed to the side protrusions 410 and 411 of the ear jack housing 41 .

The ear jack 40 according to various embodiments includes a plurality of connection terminals 42 and a printed circuit board (eg, the printed circuit board 340 shown in FIG. 4 ) from foreign substances, such as moisture, entering through the jack hole 413 . ) may require a waterproof structure to protect the According to various embodiments, the ear jack 40 has a weak waterproof portion where moisture easily penetrates, and at least one waterproof structure 43 may be required for the waterproof vulnerable portion.

According to various embodiments, the ear jack 40 is a first penetration path (p1), which is a weak waterproof portion between the printed circuit board (eg, the printed circuit board 340 shown in FIG. 4) in the jack hole 413, A second permeation path p2 and a third permeation path p3 may exist.

For example, the first penetration path p1 is a path penetrating through the jack hole 413 , and the second penetration path p2 is a path penetrating through a flexible part (eg, one end) of the connection terminal 42 . , and the third penetration path p3 may be a path penetrating through the other part 420 (eg, the other end) of the connection terminal 42 . According to various embodiments, the ear jack 40 includes the dummy cover 44 and the first to prevent moisture entering the jack hole 413 through the first permeation path p1 from entering the second permeation path p2. One waterproof structure 43 may be disposed. For example, the dummy cover 44 may primarily prevent penetration of moisture that has entered through the second penetration path p2 . According to various embodiments, the dummy cover 44 may prevent the epoxy resin, which is a material of the first waterproof structure 43 , from penetrating into a portion of the connection terminal 42 . For example, moisture that has penetrated through the second permeation path p2 may be directed to the third permeation path p3, and the second waterproof structure 46 can prevent moisture permeation through the third permeation path p3. have.

According to various embodiments, the ear jack 40 is double waterproofed by the first and second waterproof structures 43 and 46 foreign substances, such as moisture, that have penetrated through the second and third penetration paths p2 and p3. As such, moisture entering through the jack hole 413 may be suppressed from penetrating to the printed circuit board.

10 is a view showing a part of the exposed connection terminal of the ear jack according to various embodiments of the present invention, and FIG. 11 is an enlarged view of a part of FIG. 10 .

10 and 11 , according to various embodiments, a portion 420 of each connection terminal 42 is exposed on one surface of the side protrusions 410 and 411 directed in the second direction (②), and the second direction It can be positioned in a state that protrudes into According to various embodiments, a portion 420 of each of the connection terminals 42 is two waterproof for preventing moisture from entering through the second penetration path (eg, the second penetration path p2 shown in FIG. 9 ). Structure 46 may be disposed. According to various embodiments, the second waterproof structure 46 may be formed by applying a heat-resistant silicone material and then curing it. For example, silicon basically exhibits superior performance than epoxy in bonding to metal, and may have heat resistance capable of maintaining the same level of bonding as at room temperature even at high temperatures. According to various embodiments, the second waterproof structure 46 may be formed as a silicon-coated structure in an intaglio shape to facilitate bonding with a metal such as the connection terminal 42 .

12 is a front view illustrating a connection terminal according to various embodiments of the present disclosure;

Referring to FIG. 12 , according to various embodiments, an opening 421 may be formed in an end region of a portion of each connection terminal 42 , which is manufactured as a free end state. For example, the opening 421 may be a hole.

According to various embodiments, the moisture leakage of the waterproof vulnerable part, such as the first to third permeation paths (eg, the first to third permeation paths (p1, p2, p3) shown in FIG. 9 ) is reflow ( It may be caused by lead burning during reflow). As the solder melted at high heat burns the entire connection terminal 42 , a joint portion between a portion of the connection terminal 42 and the second waterproof structure 46 may be weakened.

According to various embodiments, each of the connection terminals 42 in which the opening 421 is formed in the portion 420 is diverted from the lead propagation path due to the burning of lead and split, so that the height of the burning of lead may be lowered.

According to various embodiments, a portion 420 of each connection terminal 42 may be plated with gold (Au). According to various embodiments, a portion 420 of each connection terminal 42 may be a gold-plated region 422 in order to prevent leakage due to burning of lead occurring during reflow of lead due to high heat. . According to various embodiments, a portion 420 of the connection terminal may form a Ni-barrier area 423 . Since normal lead flows toward the good wettability, lead is driven toward the gold-coated portion, for example, the gold-plated region 422, rather than the Ni-barrier region 423, thereby suppressing the occurrence of lead burning.

13 is a plan view illustrating an expanded portion of a second waterproof structure according to various embodiments of the present disclosure;

Referring to FIG. 13 , the second waterproof structure 46 according to various embodiments may be a structure formed by applying heat-resistant silicone and then curing it. According to various embodiments, the second waterproof structure 46 expands the application area so that the needle of the dispenser (not shown) can be located without overlapping the connection terminal 42 for smooth application of silicone. can do. According to various embodiments, the second waterproof structure 46 may include an expanded portion 460 . According to various embodiments, the extension portion 460 may protrude from the second waterproof structure 46 in the direction of the jack hole 413 and may have an extended shape. As the position between the needle of the dispenser and a portion of the connection terminal 42 is moved away, it is possible to prevent a phenomenon in which the applied silicone invades the portion 420 (eg, an end) of the connection terminal 42 .

14 is a comparative view showing whether or not leakage occurs according to the order of applying epoxy and silicone in the waterproof structure of a portion of the connection terminal of the ear jack according to various embodiments of the present invention.

Referring to FIG. 14 , according to various embodiments, after each of the first and second waterproof structures included in the ear jack 40 is applied on the plurality of connection terminals 42 accommodated in the ear jack housing 41 , may be disposed in a cured manner. According to various embodiments, when the first waterproof member uses an epoxy resin and the second waterproof member uses silicone, the application sequence is as follows.

First, silicone is coated on the portion 420 of the connection terminal 42 and then cured, and secondly, epoxy is coated on the rear surface of the ear jack housing 41 and then cured. If the epoxy is first applied to the rear surface of the ear jack housing 41, the epoxy application line flowing down to the part 420 of the connection terminal 42 exists outside the silicone application line, so a leak problem may occur. can

15 is a view comparing the overall width and length between the ear jack according to various embodiments of the present invention and the conventional ear jack.

Referring to FIG. 15 , the ear jack 40 according to various embodiments has a reduced width and length compared to the conventional ear jack 50 , thereby making it possible to miniaturize the ear jack.

The width w1 of the ear jack 40 according to various embodiments is smaller than the width w2 of the conventional ear jack 50, and the length l1 of the ear jack 40 according to various embodiments is the conventional ear jack. It may be smaller than the length l2 of the jack 50 . The conventional ear jack 50 has a large width w2 by a fastening part 52 having a fastening hole 520 formed therein for fastening using a fastener (not shown) inside the housing, and the lead-out part of the flexible circuit board. Although the overall length of the ear jack 50 is increased due to the structure in which the (51) protrudes in the longitudinal direction, the ear jack 40 according to various embodiments deletes the fastening part 52 and the withdrawing part 51, so that the conventional It may be possible to design a smaller size than the ear jack 50 of the.

Various embodiments of the present disclosure disclosed in the present specification and drawings are merely provided for specific examples to easily explain the technical content of the present disclosure and help the understanding of the present disclosure, and are not intended to limit the scope of the present disclosure. Therefore, the scope of the present disclosure should be construed as including all changes or modifications derived based on the technical spirit of the present disclosure in addition to the embodiments disclosed herein as being included in the scope of the present disclosure.

Claims (20)

In an electronic device,
A front plate including a printed circuit board having a plurality of openings formed thereon, a front plate facing in a first direction, a rear plate facing in a second direction opposite to the first direction, and the first and second directions, respectively a housing disposed to face in a vertical direction and including a side member surrounding the inner space between the first and second plates; and
and an ear jack mounted on the printed circuit board and connectable to an external device through an ear jack hole formed in the side member;
The ear jack
an ear jack housing including a jack hole and having a first surface facing the first direction, a second surface facing the second direction, and side surfaces facing each other perpendicular to the first and second directions;
a first waterproof structure disposed on the first surface to face the first direction;
a plurality of connection terminals supported by the ear jack housing, each part of which is exposed to the second surface in the second direction, and the part of which is respectively inserted into the opening; and
and a second waterproof structure disposed on the second surface facing the second direction and sealing a portion of the plurality of connection terminals. The electronic device of claim 1 , wherein the first waterproof structure covers a plurality of connection terminals mounted on the ear jack housing. The electronic device of claim 2 , wherein the first waterproof structure is formed by applying an epoxy resin to the first surface and then curing it. The electronic device of claim 3 , further comprising a dummy cover between the plurality of connection terminals and the first waterproof structure to prevent the epoxy resin from flowing to the connection terminals. The electronic device of claim 4 , wherein the ear jack housing further includes at least one side protrusion on the side surface in which a portion of each of the connection terminals is accommodated. The electronic device of claim 5, wherein an end of each of the connection terminals accommodated in the side protrusion is sealed by the second waterproof structure. The electronic device of claim 6 , wherein the second waterproof structure is disposed on a second surface of the side protrusion using a silicon material. The electronic device of claim 1 , wherein the second waterproof structure further includes an extension portion facing the jack hole. The electronic device according to claim 1, wherein an end region of each of the connection terminals is partially gold-plated. The electronic device of claim 1, wherein the ear jack housing has at least one seating protrusion formed on the side surface to operate as a stopper. The electronic device of claim 6, wherein an opening is formed in an end region of each of the connection terminals. In the ear jack,
An ear including a jack hole, a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a side surface facing each other perpendicular to the first and second directions jack housing;
a first waterproof structure disposed on the first surface to face the first direction;
a plurality of connection terminals supported by the ear jack housing and arranged such that a portion thereof is exposed on the second surface in the second direction; and
and a second waterproof structure disposed on the second surface to face the second direction and sealing a portion of the plurality of connection terminals. The ear jack of claim 12 , further comprising a dummy cover between the plurality of connection terminals and the first waterproof structure to prevent the epoxy resin from flowing to the connection terminals. The ear jack according to claim 12, wherein the ear jack housing further includes at least one side protrusion on the side surface in which a portion of each of the connection terminals is accommodated. The ear jack according to claim 14, wherein an end of each of the connection terminals accommodated in the side protrusion is sealed by the second waterproof structure. The ear jack according to claim 6, wherein the second waterproof structure is disposed on the second surface of the side protrusion using a silicone material. The ear jack of claim 12 , wherein the second waterproof structure further includes an extension portion facing the jack hole. The ear jack according to claim 12, wherein an end region of each of the connection terminals is partially plated with gold. The ear jack according to claim 12, wherein the ear jack housing has at least one seating protrusion formed on the side surface to operate as a stopper. The ear jack according to claim 12, wherein an opening is formed in an end region of each of the connection terminals.

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