KR20200019412A - Mobile terminal - Google Patents

Abstract

In the case of a mobile terminal having a physical button of the post-bonding method to minimize the deformation or damage of the physical button that can occur during the coupling process, and at the same time to improve the user's click feeling, the case forming the appearance and openings, A button coupled to the case through an opening, a dome key provided in the case to be pressed by the movement of the button to generate an input signal, and provided between the button and the dome key to be moved by pressing the button so that the dome And a transmission member for urging a key, wherein the button is provided with a pressurization portion through which the pressing surface is exposed, an extension portion protruding outside the rear surface of the pressing surface, and an outer circumferential surface of the extension portion, and an inner surface of the case. A mobile terminal comprising a resilient portion forming a first hook to be caught Provided.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a mobile terminal including a button that is input by being physically pressed.

The mobile terminal may be provided with a physical button for generating an input signal as it is pressed. The physical button has an effect different from that of the touch button in that the user generates a click feeling that the user presses the button to determine whether an input has been made.

Therefore, click feeling becomes an important factor in physical buttons.

In recent years, the mobile terminal is often implemented to have a waterproof function. The above-described physical button has a structure that is inherently vulnerable to waterproofing.

In order to overcome this disadvantage, recently, there has been a case of adopting a method of post-coupling a physical button on the outside of the waterproof area.

This post coupling method may be advantageous in a waterproof structure, but may cause deformation or breakage of a physical button during the coupling process.

In addition, there is a problem that the user's click feeling may be degraded in the process of having a physical button structure for satisfying such a condition.

An object of the present invention is to minimize the deformation or damage of a physical button that may occur during the coupling process in a mobile terminal having a physical button of the coupling method described above, and at the same time improve the user's click feeling.

According to an aspect of the present invention to achieve the above or another object, a case forming an appearance and forming an opening, a button coupled to the case through the opening, is provided in the case is pressed by the behavior of the button A dome key for generating an input signal and a transmission member provided between the button and the dome key to move by pressing the button to press the dome key, wherein the button has a pressing surface exposed through the opening; Pressing, And an elastic portion protruding from the outer surface of the back surface of the pressing surface and an elastic portion provided around the outer circumferential surface of the extension portion and forming a first hook that is caught by the inner surface of the case.

In addition, according to another aspect of the present invention, the extension portion provides a mobile terminal, characterized in that to form a second hook protruding in the outward direction.

In addition, according to another aspect of the present invention, the undercut area protrudes 0.1mm, the elastic portion provides a mobile terminal, characterized in that overlapping with the inner surface of the case 0.18mm.

In addition, according to another aspect of the present invention, the elastic part provides a mobile terminal, characterized in that forming a chamfer in the outer and inner corners.

In addition, according to another aspect of the invention, the frame is provided inside the case further includes a frame including an insertion surface for providing an insertion hole into which the transmission member of the button is inserted, the insertion surface of the frame and the back surface of the button Provides a mobile terminal characterized in that forming a spaced space facing each other.

According to another aspect of the present invention, the rear surface of the button includes an inner region within a first distance from the transfer member and an outer region provided outside the inner region, wherein the inner region is larger than the outer region. It provides a mobile terminal, characterized in that protruding a second distance in the insertion direction of the transfer member.

In addition, according to another aspect of the present invention, the first distance is 2mm, the second distance provides a mobile terminal, characterized in that 0.2mm.

In addition, according to another aspect of the present invention, the inner region and the outer region of the pressing unit is provided with a mobile terminal, characterized in that connected to the inclined surface.

In addition, according to another aspect of the present invention, the pressing unit provides a mobile terminal, characterized in that the bar (bar) shape.

According to another aspect of the present invention, the extension part includes a rigid material, the elastic part includes a soft material, and the elastic part provides a mobile terminal, characterized in that the double injection molded in the extension. .

The effects of the mobile terminal according to the present invention will be described below.

According to at least one of the embodiments of the present invention, there is an advantage that the deformation or damage of the physical button can be prevented.

In addition, according to at least one of the embodiments of the present invention, there is an advantage that it is possible to minimize the peeling of the specific member that is double-injected of the physical button.

In addition, according to at least one of the embodiments of the present invention, there is an advantage that the waterproof performance can be implemented despite the physical button.

Further scope of the applicability of the present invention will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, and therefore, specific embodiments, such as the detailed description and the preferred embodiments of the present invention, are given by way of example only. Should be.

1A is a block diagram illustrating a mobile terminal related to the present invention.
1B and 1C are conceptual views of one example of a mobile terminal, viewed from different directions.
2 is a perspective view of a button associated with the present invention.
3 is a cross-sectional view along the AA ′ direction of FIG. 1C.
4 is an enlarged view of a region M1 of FIG. 3.
FIG. 5 is an enlarged view of the region M2 of FIG. 3.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components will be given the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles. In addition, in the following description of the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easily understanding the embodiments disclosed in the present specification, the technical idea disclosed in the specification by the accompanying drawings are not limited, and all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

The mobile terminal described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant, a portable multimedia player, a navigation, a slate PC , Tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays, and the like. have.

However, it should be noted that the configuration according to the embodiments described herein may be applied to fixed terminals such as digital TVs, desktop computers, digital signages, and the like, except when applicable only to mobile terminals. It's easy for a technician to know.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual views of one example of the mobile terminal according to the present invention viewed from different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a controller 180, and a power supply unit 190. ) May be included. The components shown in FIG. 1A are not essential to implementing a mobile terminal, such that the mobile terminal described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 of the components, between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or the mobile terminal 100 and the external server It may include one or more modules that enable wireless communication therebetween. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of the broadcast receiving module 111, the mobile communication module 112, the wireless internet module 113, the short range communication module 114, and the location information module 115. .

The input unit 120 may include a camera 121 or an image input unit for inputting an image signal, a microphone 122 for inputting an audio signal, an audio input unit, or a user input unit 123 for receiving information from a user. , Touch keys, mechanical keys, and the like. The voice data or the image data collected by the input unit 120 may be analyzed and processed as a control command of the user.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. G-sensor, Gyroscope Sensor, Motion Sensor, RGB Sensor, Infrared Sensor, Infrared Sensor, Finger Scan Sensor, Ultrasonic Sensor Optical sensors (e.g. cameras 121), microphones (see 122), battery gauges, environmental sensors (e.g. barometers, hygrometers, thermometers, radiation detection sensors, Thermal sensors, gas sensors, etc.), chemical sensors (eg, electronic noses, healthcare sensors, biometric sensors, etc.). Meanwhile, the mobile terminal disclosed herein may utilize a combination of information sensed by at least two or more of these sensors.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154. can do. The display unit 151 forms a layer structure with or is integrally formed with the touch sensor, thereby implementing a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and the user, and may also provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 connects a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input / output (I / O) port, a video input / output (I / O) port, and an earphone port. In the mobile terminal 100, in response to an external device connected to the interface unit 160, appropriate control associated with the connected external device may be performed.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications that are driven in the mobile terminal 100, data for operating the mobile terminal 100, and instructions. At least some of these applications may be downloaded from an external server through wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for basic functions of the mobile terminal 100 (for example, a call forwarding, a calling function, a message receiving, and a calling function). Meanwhile, the application program may be stored in the memory 170 and installed on the mobile terminal 100 to be driven by the controller 180 to perform an operation (or function) of the mobile terminal.

In addition to the operation related to the application program, the controller 180 generally controls the overall operation of the mobile terminal 100. The controller 180 may provide or process information or a function appropriate to a user by processing signals, data, information, and the like, which are input or output through the above-described components, or driving an application program stored in the memory 170.

In addition, the controller 180 may control at least some of the components described with reference to FIG. 1A in order to drive an application program stored in the memory 170. In addition, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 to drive the application program.

The power supply unit 190 receives power from an external power source and an internal power source under the control of the controller 180 to supply power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be a built-in battery or a replaceable battery.

At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of the mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170.

1B and 1C, the disclosed mobile terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, a swivel type, and two or more bodies which are coupled to be movable relative to each other. . Although related to a particular type of mobile terminal, a description of a particular type of mobile terminal may generally apply to other types of mobile terminals.

Here, the terminal body may be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an external appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the internal space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

The display unit 151 may be disposed in front of the terminal body to output information. As illustrated, the window 151A of the display unit 151 may be mounted to the front case 101 to form the front surface of the terminal body together with the front case 101.

In some cases, an electronic component may be mounted on the rear case 102. Electronic components attachable to the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear case 102 may be detachably coupled to the rear case 102 to cover the mounted electronic component. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic components mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a portion of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the coupling. On the other hand, the rear cover 103 may be provided with an opening for exposing the camera 121B or the sound output unit 152b to the outside.

The cases 101, 102, and 103 may be formed by injecting a synthetic resin, or may be formed of a metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case may provide the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, the mobile terminal 100 of the unibody that the synthetic resin or metal from the side to the rear may be implemented.

On the other hand, the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from seeping into the terminal body. For example, the waterproof portion is provided between the window 151A and the front case 101, between the front case 101 and the rear case 102 or between the rear case 102 and the rear cover 103, the combination thereof It may include a waterproof member for sealing the inner space.

The mobile terminal 100 includes a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, an optical output unit 154, and first and second devices. Cameras 121A and 121B, first and second manipulation units 123a and 123b, a microphone 122, an interface unit 160, and the like may be provided.

Hereinafter, as illustrated in FIGS. 1B and 1C, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the illuminance sensor 142, and the light output unit may be disposed on the front surface of the terminal body. 154, the first camera 121A and the first manipulation unit 123a are disposed, and the second manipulation unit 123b, the microphone 122, and the interface unit 160 are disposed on the side of the terminal body. The mobile terminal 100 in which the second sound output unit 152b and the second camera 121B are disposed on the rear surface of the mobile terminal 100 will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed or disposed on other sides. For example, the first manipulation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side of the terminal body instead of the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or user interface (UI) and graphical user interface (GUI) information according to the execution screen information. .

The display unit 151 may include a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). The display may include at least one of a 3D display and an e-ink display.

In addition, two or more display units 151 may exist according to the implementation form of the mobile terminal 100. In this case, the plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch on the display unit 151 so as to receive a control command by a touch method. By using this, when a touch is made to the display unit 151, the touch sensor may sense the touch, and the controller 180 may generate a control command corresponding to the touch based on the touch sensor. The content input by the touch method may be letters or numbers or menu items that can be indicated or designated in various modes.

Meanwhile, the touch sensor is formed of a film having a touch pattern and disposed between the window 151A and the display (not shown) on the rear surface of the window 151A or directly patterned on the rear surface of the window 151A. May be Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or provided inside the display.

As such, the display unit 151 may form a touch screen together with the touch sensor, and in this case, the touch screen may function as the user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first manipulation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear, and the second sound output unit 152b may include a loud speaker for outputting various alarm sounds or multimedia reproduction sounds. It can be implemented in the form of).

A sound hole for emitting sound generated from the first sound output unit 152a may be formed in the window 151A of the display unit 151. However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between the structures (eg, a gap between the window 151A and the front case 101). In this case, an externally formed hole may be invisible or hidden for sound output, thereby simplifying the appearance of the mobile terminal 100.

The light output unit 154 is configured to output light for notifying when an event occurs. Examples of the event may include message reception, call signal reception, missed call, alarm, calendar notification, email reception, information reception through an application, and the like. The controller 180 may control the light output unit 154 to terminate the output of the light when the user confirms the event confirmation.

The first camera 121A processes an image frame of a still image or a moving image obtained by the image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display unit 151 and stored in the memory 170.

The first and second manipulation units 123a and 123b may be collectively referred to as a manipulating portion as an example of the user input unit 123 that is manipulated to receive a command for controlling the operation of the mobile terminal 100. have. The first and second manipulation units 123a and 123b may be adopted in any manner as long as the user is tactile manner such as touch, push, scroll, and the like while the user is tactile. In addition, the first and second manipulation units 123a and 123b may be employed in such a manner that the first and second manipulation units 123a and 123b are operated without a tactile feeling by the user through proximity touch, hovering touch, or the like.

In the drawing, the first operation unit 123a is illustrated as being a touch key, but the present invention is not limited thereto. For example, the first manipulation unit 123a may be a mechanical key or a combination of a touch key and a push key.

Content input by the first and second manipulation units 123a and 123b may be variously set. For example, the first manipulation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second manipulation unit 123b is output from the first or second sound output units 152a and 152b. The user may receive a command such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151.

Meanwhile, as another example of the user input unit 123, a rear input unit (not shown) may be provided on the rear surface of the terminal body. The rear input unit is manipulated to receive a command for controlling the operation of the mobile terminal 100, and the input content may be variously set. For example, commands such as power on / off, start, end, scroll, etc., control of the volume of sound output from the first and second sound output units 152a and 152b, and the touch recognition mode of the display unit 151. Commands such as switching can be received. The rear input unit may be implemented in a form capable of input by touch input, push input, or a combination thereof.

The rear input unit may be disposed to overlap the display unit 151 on the front side in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body so that the user can easily manipulate the index by using the index finger when the user grips the terminal body with one hand. However, the present invention is not necessarily limited thereto, and the position of the rear input unit may be changed.

As such, when the rear input unit is provided at the rear of the terminal body, a new type user interface using the same may be implemented. In addition, when the touch screen or the rear input unit described above replaces at least some functions of the first operation unit 123a provided in the front of the terminal body, and the first operation unit 123a is not disposed on the front of the terminal body, The display unit 151 may be configured with a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 serves as a path for connecting the mobile terminal 100 to an external device. For example, the interface unit 160 may be connected to another device (eg, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), or a Bluetooth port (Bluetooth). Port), a wireless LAN port, or the like, or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented in the form of a socket for receiving an external card, such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The second camera 121B may be disposed on the rear surface of the terminal body. In this case, the second camera 121B has a photographing direction substantially opposite to that of the first camera 121A.

The second camera 121B may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix format. Such a camera may be referred to as an 'array camera'. When the second camera 121B is configured as an array camera, the plurality of lenses may be used to capture an image, and to obtain an image of better quality.

The flash 124 may be disposed adjacent to the second camera 121B. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121B.

The second sound output unit 152b may be further disposed on the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used to implement a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be built in the terminal body or formed in the case. For example, an antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1A) may be configured to be pulled out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner side of the rear cover 103, or may be configured such that a case containing a conductive material functions as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 embedded in the terminal body or detachably configured from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to enable wireless charging through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

Meanwhile, in the drawing, the rear cover 103 is coupled to the rear case 102 to cover the battery 191 to limit the detachment of the battery 191 and to protect the battery 191 from external shocks and foreign substances. To illustrate. When the battery 191 is detachably configured to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

An accessory may be added to the mobile terminal 100 to protect the appearance or to assist or expand the function of the mobile terminal 100. An example of such an accessory may be a cover or pouch that covers or accommodates at least one surface of the mobile terminal 100. The cover or pouch may be configured to extend the function of the mobile terminal 100 in cooperation with the display unit 151. Another example of the accessory may be a touch pen for assisting or extending a touch input to a touch screen.

2 is a perspective view of a button 200 associated with the present invention.

The button 200 having a feature of the present invention refers to a configuration in which an electric signal is generated by pressing a dome key provided in the mobile terminal by being physically pressed. The button 200 of the present invention may be a side button, a front button, a rear button, or the like depending on the position provided in the mobile terminal. In addition, the button of the present invention may be a power button, a volume button, a home button, a fingerprint button and the like according to a function.

The button 200 of the present invention may correspond to the above-described second operation unit 123b (see FIG. 1C).

The button 200 may be provided in a bar shape or a disc shape. When the button 200 is provided in a bar shape, the button 200 is generally provided on the side of the mobile terminal, and when the button 200 is provided in a disc shape, the button 200 is generally provided on the front or rear surface of the mobile terminal.

The drawings of the present invention are described on the premise that the button 200 is a bar shape, but may be provided in a disc shape, and any shape may be used as long as the features of the present invention can be applied to the contradiction.

3 is a cross-sectional view along the line AA ′ of FIG. 1C.

The case 310 has an opening 311 for the button 200 to be provided. The opening 311 may have a shape corresponding to the shape of the button 200. The case 310 may be any one of the front case, the middle case, and the rear case described above, or may be a concept encompassing at least two members.

The button 200 is located in the opening 311 of the case 310.

The button 200 may be provided to protrude a predetermined depth from the outer surface 3101 of the case 310 or may form the same surface as the outer surface 3101 of the case 310.

The button 200 may be pressed inward in the thickness direction.

The dome key 410 may be provided inside the pressing direction of the button 200. The dome key 410 is compressed according to the pressing of the button 200 to generate an electrical signal, and is restored when the pressing is released to block the generation of the electrical signal. The electrical signal generated at this time can be treated as a user input signal.

The button 200 may be fixed to the frame 320 provided in the case 310. The dome key 410 is mounted inside the frame 320 to face the button 200.

The button 200 may be composed of a pressing unit 210, an extension 220, and an elastic unit 230. The pressing unit 210 forms the outermost region in the thickness direction of the button 200. The pressing surface 211 of the pressing unit 210 is exposed to the outside through the opening 311. The pressing unit 210 is an area directly receiving a user input.

The transmission member 240 is positioned at the center of the pressing surface 210 of the pressing surface 210 and moves when the button 200 is pressed to press the dome key 410. The transmission member 240 may be integrally formed with the button 200 or may be provided as a separate member from the button 200. Although the latter case is illustrated in the drawings of the present invention, it is not limited thereto.

The extension part 220 is provided on the pressing surface rear surface 2102 of the pressing part 210 to provide a counterpart to which the elastic part 230 to be described below is coupled. The extension part 220 has a shape protruding inward in the thickness direction.

The elastic part 230 is caught by the case 310 to prevent the button 200 from exiting the opening 311. Therefore, the extension part 220 coupled with the elastic part 230 should be provided on the outer side so as to span the boundary around the opening 311 of the case 310.

It is preferable that the extension part 220 and the elastic part 230 are provided in plurality so that the button 200 can be stably coupled to the opening 311 without being pulled out.

The elastic part 230 may be coupled to only one end of the circumference and the protruding direction of the outer circumferential surface of the extension part 220, and may be provided on the minimum surface of the pressing surface 2102.

The transmission member 240 may be inserted into and fixed to the insertion hole 321 of the frame 320.

The waterproof rib 241 is provided along the outer circumference of the transmission member 240 to fix the transmission member 240 to the frame 320 and to block the insertion hole 321 of the frame 320 to waterproof the interior of the frame 320. Implement

In order to improve the waterproof reliability, the case 310 and the frame 320 may be provided integrally.

In order to achieve the purpose of the waterproof rib 241 described above, the waterproof rib 241 includes an elastic material. The waterproof rib 241 may be generated by the double injection method on the delivery member 240.

The button 200 may be fitted from the outside through the opening 311 of the case 310 to be waterproof. That is, since the delivery member 240 is coupled to the frame 320, the interior of the frame 320 is satisfied with the waterproof performance. Thus, the button 200 is indirectly coupled to the dome key 410 by coupling from the outside of the frame 320. Pressurizing is desirable for implementing waterproof performance.

The elastic portion 230 includes a first hook 231 protruding outwardly and is caught by the case boundary back surface 3102 around the opening 311. When the button 200 is fitted outside the opening 311 of the case 310, it is compressed and deformed, and after being fully inserted, the button 200 is restored so that the button 200 does not fall out again. Therefore, the elastic portion 230 is preferably formed of an elastic material.

Meanwhile, the pressing unit 210 and the extension unit 220 may be made of a material capable of securing sufficient rigidity to provide a sufficient click feeling.

For the same reason, the extension part 220 and the elastic part 230 may be formed of different materials, and the elastic part 230 may be coupled to the extension part 220 by being formed by double injection.

4 is an enlarged view of a region M1 of FIG. 3.

The elastic part 230 serves to prevent the button 200 from falling out of the opening 311 of the case 310 and to fix the button 200, thereby receiving the force applied to the case 310. Therefore, it is important to maintain the coupling force between the extension part 220 and the elastic part 230. This is because when the coupling force between the extension part 220 and the elastic part 230 is weak, the extension part 220 may be separated from the elastic part 230 and may be separated out of the case 310.

In order to maintain the coupling force between the extension part 220 and the elastic part 230, the extension part 220 may form a second hook 221 protruding outward. The second hook 221 of the extension 220 may be provided in the form of a protrusion protruding outward. The second hook 221 has a joining surface with respect to the width direction to prevent the extension portion 220 and the elastic portion 230 when the force applied to each other in the thickness direction.

The second hook 221 of the extension part 220 and the first hook 231 of the elastic part 230 preferably have shapes corresponding to each other. That is, since the first hook 231 has a hook shape, the second hook 221 may also have a hook shape. This makes it possible to secure the coupling of the extension part 220 and the elastic part 230 by making the thickness of the elastic part 230 relatively constant.

When the extension part 220 and the pressing part 210 are integrally formed through a mold, an undercut area is formed from the second hook 221 of the extension part 220 to the back surface 212 of the pressing part. You will need to have additional mold parts to implement.

The thickness T1 of the second hook 221 is preferably about 0.1 mm. If excessively thick, there is a risk of being caught by the rigid second hook 221 case, and if excessively thin, the existing purpose of improving the bonding force of the extension part 220 and the elastic part 230 cannot be achieved.

It is preferable that the distance T2 from one end of the extension part 220 in the inner direction to one end of the elastic part 230 is about 0.35 mm. This is to ensure sufficient injection gate positions and flow paths during injection formation of the elastic portion 230.

The widthwise outer side and the thicknesswise inner boundary corners of the elastic part 230 may have a chamfer 232 shape. When the button 200 is inserted into the case 310 and the opening 311 without the chamfer 232, the face-to-face may face each other so that the button 200 may not be properly inserted. The chamfer 232 allows the button 200 and the case 310 to abut on a face to face line to facilitate coupling.

When the thickness of the first hook 231 of the elastic portion 230 is too thick, the coupling of the button 200 is not easy and when the thickness is too thin, the combined button 200 may be separated again. In consideration of this, the thickness T3 of the first hook 231 is preferably about 0.18 mm.

FIG. 5 is an enlarged view of the region M2 of FIG. 3.

The pressing unit 210 is pressurized as a place for receiving a user's input to press the delivery member 240. When the transmission member 240 is positioned at the center in the width direction of the pressing unit 210, when the pressure member 210 presses the width direction outer side of the pressing unit 210, the pressing unit 210 may bend, but the transmission member 240 may be formed. It may not be pressed. This situation affects the deterioration of the click feeling of the button 200. Therefore, it is preferable to have a structure in which the transmission member 240 is pressed even when the widthwise outer region of the pressing unit 210 is pressed.

As the thickness of the pressing unit 210 is increased, the rigidity increases, so even when the outside of the pressing unit is pressed, bending is minimized and the pressing member 210 is pressurized in the thickness direction. However, the pressing unit 210 needs a minimum separation space 421 for the stroke to be pressed. That is, the insertion surface 322 forming the insertion hole 321 of the frame 320 and the back surface 212 of the pressing surface of the button 200 face each other to provide a space 421.

However, as described above, as the thickness of the pressing unit 210 is thicker, a feeling of click is improved, and thus the shape design of the pressing surface back surface 212 is necessary.

An area within the width direction outside of the inner region 2121 and the inner region 2121 of the rear surface of the button 200, that is, the region within the first distance with respect to the width direction of the pressing surface rear surface 212 from the transmission member 240. When the outer region 2122 is referred to, the inner region 2121 may be provided to protrude a second distance in the inner direction of the thickness direction of the transmission member 240 than the outer region 2122.

This means that the inner region 2121 has a protruding shape because only a minimum region for the stroke is left and the pressing portion 210 is thickened to increase the feeling of click, whereas the outer region 2122 is the outer side pressing of the pressing portion 210 in the width direction. This is because the pressurizing unit 210 should secure a free space so as not to interfere with the frame 320 when being bent.

In this case, the first distance is preferably about 2 mm, and the second distance is about 0.2 mm.

The inner region 2121 and the outer region 2122 of the pressing surface back surface 212 may be connected to the inclined surface 2123. The reason why the inclined surface 2123 is provided is to secure a region as thick as possible within the range in which the pressing unit 210 does not interfere with the frame 320. An ideal inclined surface 2123 for this purpose may have an inclination such that the inclined surface 2123 and the insertion surface 322 of the frame 320 are parallel when the pressing unit 210 is bent at the maximum.

It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

The foregoing detailed description should not be construed as limiting in all respects, but should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

100: mobile terminal 200: button
210: pressing portion 211: pressing surface
212: pressing surface 220: extension part
230: elastic portion 231: hook
232: chamfer 240: transmission member
241: waterproof rib 310: case
3101: case outer side 3102: case boundary back
311: opening 320: frame
321: insertion hole 322: insertion surface
410: Dome Key 421: Space

Claims (10)

A case forming an appearance and forming an opening;
A button coupled to the case through the opening;
A dome key provided in the case and pressed by the button to generate an input signal; And
A transmission member provided between the button and the dome key to move by pressing the button to press the dome key;
The button is
A pressing unit to expose a pressing surface through the opening;
An extension part protruding outside the back surface of the pressing surface; And
And a resilient portion provided around the outer circumferential surface of the extension portion and forming a first hook on the inner surface of the case. According to claim 1,
The extension unit is characterized in that for forming a second hook protruding in the outward direction. The method of claim 2,
The undercut region protrudes 0.1 mm, and the elastic portion overlaps the inner surface of the case 0.18 mm. According to claim 1,
And the elastic portion forms a chamfer at outer and inner corners. According to claim 1,
The frame further includes a frame including an insertion surface provided inside the case to provide an insertion hole into which the transmission member of the button is inserted,
Mobile terminal, characterized in that the insertion surface of the frame and the back surface of the button to form a space facing each other. The method of claim 5,
The back side of the button,
An inner region within a first distance from the transfer member; And
An outer region provided outside the inner region,
And the inner region protrudes a second distance in an insertion direction of the transmission member from the outer region. The method of claim 6,
The first distance is 2 mm,
The second distance is a mobile terminal, characterized in that 0.2mm. The method of claim 6,
The inner region and the outer region of the pressing unit is connected to the inclined surface. According to claim 1,
The pressing unit has a bar shape. According to claim 1,
The extension portion comprises a rigid material, the elastic portion includes a flexible material,
The elastic unit is a mobile terminal, characterized in that the double injection molded in the extension.

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