Patent Description:
Generally, electronic devices are provided with buttons, such that the electronic devices can be controlled through the buttons. Currently, the button is usually provided with a snap ring at one end of a button post, the snap ring abuts against a limit structure, and the limit structure is used to limit the snap ring, so as to prevent the button from being detached from a frame of the electronic device and prevent the button from being damaged. Due to a limited installation space at the end of the button post, the structural performance of the snap ring and the end of the button post is lowered, and there are difficulties in assembly.

<CIT> relates to a mobile terminal including a housing, a key cap, a guide piece, and a switch. The housing defines a guide hole. The key cap extends through the housing and can move relative to the housing. The guide piece is located in the guide hole and includes an elastic piece located at one end of the guide piece. One end of the guide piece away from the elastic piece is in contact with the key cap. The key cap can abut against the guide piece so that the elastic piece can abut against the switch.

An electronic device is provided in implementation of the disclosure. The electronic device includes a frame, a stop pin, and a button. The frame defines a button hole and a pin hole in communication with the button hole. An inner side wall of the button hole is provided with a stop protrusion at a position away from the pin hole. The stop pin is inserted into the pin hole and partially received in the button hole. The button is provided with a first hook and a second hook away from the first hook. The first hook is used for hooking the stop protrusion and the second hook is used for hooking the stop pin to cooperatively limit the button.

In the electronic device provided in the implementations of the disclosure, the frame defines the button hole and the pin hole in communication with the button hole, the inner side wall of the button hole is provided with the stop protrusion at a position away from the pin hole, the stop pin is inserted into the pin hole and partially received in the button hole, the first hook hooks the stop protrusion, and the second hook hooks the stop pin, and thus it can be ensured that the button cannot be detached from the frame to provide with a button safety limit, it is easy to assemble the button and the frame, and a structural stability is high.

To describe the technical solutions in the implementations of the disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the implementations. Apparently, the accompanying drawings in the following description illustrate some implementations of the disclosure. Those of ordinary skill in the art may also obtain other drawings based on these accompanying drawings without creative efforts.

Technical solutions in implementations of the disclosure will be described clearly and completely hereinafter with reference to the accompanying drawings in the implementations of the disclosure.

Referring to <FIG>, an electronic device <NUM> is provided. The electronic device <NUM> includes a frame <NUM>, a stop pin <NUM>, and a button <NUM>. The frame <NUM> defines a button hole <NUM> and a pin hole <NUM> in communication with the button hole <NUM>. An inner side wall of the button hole <NUM> is provided with a stop protrusion <NUM> at a position away from the pin hole <NUM>. The stop pin <NUM> is inserted into the pin hole <NUM> and partially received in the button hole <NUM>. The button <NUM> is provided with a first hook <NUM> and a second hook <NUM> away from the first hook <NUM>. The first hook <NUM> is used for hooking the stop protrusion <NUM> and the second hook <NUM> is used for hooking part of the stop pin <NUM> in the button hole <NUM>, to cooperatively limit the button <NUM>.

It can be understood that the electronic device <NUM> may be a terminal device such as a mobile phone, a tablet computer, a notebook computer, etc., and may also be a smart wearable device such as a smart watch, a smart earphone, smart glasses, etc. When the button <NUM> is pressed, the button <NUM> can slide toward an inside of the frame <NUM>, so that the button <NUM> triggers a signal trigger inside the frame <NUM>. When the button <NUM> is released, the first hook <NUM> hooks the stop protrusion <NUM> and the second hook <NUM> hooks the stop pin <NUM> to prevent the button <NUM> from being detached from the frame <NUM> and prevent the button <NUM> from being damaged.

The frame <NUM> defines the button hole <NUM> and the pin hole <NUM> in communication with the button hole <NUM>, the inner side wall of the button hole <NUM> is provided with the stop protrusion <NUM> at a position away from the pin hole <NUM>, the stop pin <NUM> is inserted into the pin hole <NUM> and partially received in the button hole <NUM>, the first hook <NUM> of the button <NUM> hooks the stop protrusion <NUM>, and the second hook <NUM> of the button <NUM> hooks the stop pin <NUM>, and thus it can be ensured that the button <NUM> cannot be detached from the frame <NUM> to provide the button <NUM> with a safety limit, it is easy to assemble the button <NUM> and the frame <NUM>, and a structural stability is high.

In this implementation, the frame <NUM>, serving as a framework of the electronic device <NUM>, can carry various components of the electronic device <NUM>, such that the electronic device <NUM> is stable in the overall structure. With the aid of rigid stresses of the frame <NUM>, the electronic device <NUM> has a protective performance such as safety, drop resistance, shatter resistance, and crack resistance. The frame <NUM> can be closely fit with exterior structures of the electronic device <NUM> to achieve dustproof, waterproof, fireproof, and other protective performance.

In an implementation, the frame <NUM> has an outer side surface <NUM> and an inner side surface <NUM> opposite to the outer side surface <NUM>. The inner side surface <NUM> may be composed of flat surfaces and non-flat surfaces. That is, the inner side surface <NUM> of the frame <NUM> may have multiple recessions and multiple protrusions in such a way that the inner side surface <NUM> of the frame <NUM> can match various components. The inner side surface <NUM> is an interface of the frame <NUM> that can substantially enclose to define an inner space. The outer side surface <NUM> may be composed of flat surfaces and non-flat surfaces. That is, the outer side surface <NUM> may also have multiple recessions and multiple protrusions. The outer side surface <NUM> substantially forms the appearance surface of the frame <NUM>. The inner side surface <NUM> encloses to form an accommodating space. The accommodating space is used for accommodating various functional components such as a mainboard, a signal trigger, a camera, a sensor, a memory, an antenna, and the like.

The frame <NUM> further has a first end surface <NUM> and a second end surface <NUM> opposite to the first end surface <NUM>. The inner side surface <NUM> and the outer side surface <NUM> are in connection with the first end surface <NUM> and the second end surface <NUM>. The first end surface <NUM> can match front structural members of the electronic device <NUM>. The second end surface <NUM> can match rear structural members of the electronic device <NUM>. The front structural members refer to structural members facing a user of the electronic device <NUM> when the electronic device <NUM> is in use. The rear structural members refer to structural members facing away from the user of the electronic device <NUM> when the electronic device <NUM> is in use. For example, the front structural members include a display screen, and the rear structural members include a rear cover. The first end surface <NUM> and the second end surface <NUM> may both be composed of flat surfaces and non-flat surfaces. That is, the first end surface <NUM> and the second end surface <NUM> may both have multiple recessions and protrusions.

In this implementation, the button hole <NUM> extends from the outer side surface <NUM> toward the inner side surface <NUM>. The button hole <NUM> has a button opening <NUM> defined on the outer side surface <NUM>. The button <NUM> is inserted into the button hole <NUM> from the button opening <NUM>. The button hole <NUM> further has an inner circumferential wall extending from the button opening <NUM> toward the inner side surface <NUM>. The inner circumferential wall is in clearance fit with an outer circumferential wall of the button <NUM>. The inner circumferential wall can also provide slidable guide to the button <NUM>, so as to prevent the button <NUM> from being lifted up. The pin hole <NUM> penetrates the inner circumferential wall. The stop pin <NUM> extends into the button hole <NUM> through an opening of the pin hole <NUM> that penetrates the inner circumferential wall.

Optionally, the button hole <NUM> is a rectangular hole. The inner circumferential wall has two long side surfaces <NUM> substantially parallel to the first end surface <NUM> or the second end surface <NUM>, a first short inner side surface <NUM>, and a second short inner side surface <NUM> opposite to the first short inner side surface <NUM>. The first short inner side surface <NUM> and the second short inner side surface <NUM> are connected with the two long inner side surfaces <NUM>. The stop protrusion <NUM> extends from the first short inner side surface <NUM>. The pin hole <NUM> penetrates the long inner side surfaces <NUM> and is adjacent to the second short inner side surface <NUM>. Part of the stop pin <NUM> extending into the button hole <NUM> is adjacent to the second short inner side surface <NUM>. The stop pin <NUM> can penetrate the long inner side surface <NUM>.

Optionally, the button hole <NUM> is square. The stop protrusion <NUM> is disposed on one of the inner side walls. The stop pin <NUM> is adjacent to one inner side wall opposite to the stop protrusion <NUM>.

Optionally, the button hole <NUM> is circular. The stop protrusion <NUM> and the stop pin <NUM> are approximately symmetrically arranged about the central axis of the button hole <NUM>.

Optionally, the frame <NUM> is circular. The button <NUM> is disposed on a circumferential side of the frame <NUM>. Alternatively, the frame <NUM> defines multiple button holes <NUM> in a circumferential direction, and the electronic device <NUM> may also include multiple buttons <NUM> mounted in the button holes <NUM> respectively.

During installation of the button <NUM>, the first hook <NUM> of the button <NUM> first hooks the stop protrusion <NUM>, the second hook <NUM> is then inserted into the button hole <NUM>, and the second hook <NUM> is caused to be at a side of the pin hole <NUM> away from the button opening <NUM>, and finally the stop pin <NUM> is inserted into the pin hole <NUM>, so that the second hook <NUM> can hook the stop pin <NUM>.

Further, the button <NUM> is provided with a button cap <NUM> and a button post <NUM> connected with the button cap <NUM>. The button cap <NUM> matches the button hole <NUM>. The first hook <NUM> and the second hook <NUM> are respectively disposed at both ends of the button cap <NUM> in a length direction of the button cap. The button post <NUM> is connected with the button cap <NUM> and located between the first hook <NUM> and the second hook <NUM>. The button post <NUM> is connected with the button cap <NUM> at an inner side of the button cap <NUM> close to the frame <NUM>.

Specifically, an outer circumferential wall of the button cap <NUM> is in clearance fit with the inner circumferential wall of the button hole <NUM>. The button cap <NUM> has an outer end surface <NUM>, an inner end surface <NUM> opposite to the outer end surface <NUM>, and an outer circumferential surface connected between the outer end surface <NUM> and the inner end surface <NUM>. The outer circumferential surface has a first short outer side surface <NUM>, a second short outer side surface <NUM> opposite to the first short outer side surface <NUM>, and two long outer side surfaces connected between the first short outer side surface <NUM> and the second short outer side surface <NUM>. The first short outer side surface <NUM> matches the first short inner side surface <NUM> and the second short outer side surface <NUM> matches the second short inner side surface <NUM>. The two long outer side surfaces match the long inner side surfaces <NUM>. The inner end surface <NUM> is inside the button hole <NUM> and away from the button opening <NUM>. The first hook <NUM> and the second hook <NUM> extend from the inner end surface <NUM>. The first hook <NUM> is close to the first short outer side surface <NUM> and the second hook <NUM> is close to the second short outer side surface <NUM>.

Optionally, as illustrated in <FIG>, the frame <NUM> is arc-shaped. The button cap <NUM> is an arc-shaped curved plate. The button cap <NUM> matches the frame <NUM> in shape, so that the button cap <NUM> can have an increased length, and the button cap <NUM> can be connected with the button posts <NUM> at multiple positions. As such, various parts of the button cap <NUM> can be pressed, and various manipulations can be realized through multiple button posts <NUM>.

The button post <NUM> has a length direction which is substantially perpendicular to the inner side surface <NUM> and the outer side surface <NUM> of the frame <NUM>, such that it is convenient for the button post <NUM> to receive a pressing force applied by the button cap <NUM> to slide in a direction perpendicular to the inner side surface <NUM> and the outer side surface <NUM> of the frame <NUM>, and it can make a sliding force of the button post <NUM> focus on the signal trigger inside the frame <NUM>. The button post <NUM> is connected to the inner end surface <NUM> and is located between the first hook <NUM> and the second hook <NUM>. The first hook <NUM> and the second hook <NUM> exert a balanced limiting force on the button cap <NUM> to prevent the button cap <NUM> from being lifted up.

Optionally, when the button <NUM> is not pressed, a surface of the button cap <NUM> away from the button post <NUM> may protrude relative to the outer side surface <NUM>, such that the button cap <NUM> is easily to be perceived when the user touches an outer side of the frame <NUM>, and it is convenient for the user to press the button cap <NUM>.

Optionally, when the button <NUM> is not pressed, the surface of the button cap <NUM> away from the button post <NUM> may be substantially flush with the outer side surface <NUM> to improve flatness of outer structures of the frame <NUM>.

Optionally, when the button <NUM> is not pressed, the surface of the button cap <NUM> away from the button post <NUM> can be recessed relative to the outer side surface <NUM> to prevent the button <NUM> from being impacted when the electronic device <NUM> is dropped, so as to prevent the button <NUM> from being damaged.

Optionally, when the button <NUM> is not pressed, an end surface of the button post <NUM> away from the button cap <NUM> may protrude relative to the inner side surface <NUM>, which facilitates an abutment (or, contact) between the button post <NUM> and the signal trigger.

Optionally, when the button <NUM> is not pressed, the end surface of the button post <NUM> away from the button cap <NUM> may be flush with the inner side surface <NUM> to ensure the flatness of the interior structure of the frame <NUM> and improve the utilization rate of the accommodating space.

Optionally, when the button <NUM> is not pressed, the end surface of the button post <NUM> away from the button cap <NUM> may be recessed relative to the inner side surface <NUM>. By receiving the pressing force applied by the button cap <NUM>, one end of the button post <NUM> protrudes relative to the inner side surface <NUM> to abut against the signal trigger.

In another implementation, the button cap <NUM> can also be in a disc shape, and the button hole <NUM> is circular. The button cap <NUM> is provided with multiple first hooks <NUM> and multiple second hooks <NUM>, and each of the multiple first hooks <NUM> and each of the multiple second hooks <NUM> is symmetrically arranged around the geometric center of the button cap <NUM>. The geometric center axis of the button cap <NUM> is aligned with the geometric center axis of the button post <NUM>. There are multiple stop protrusions <NUM> disposed on the inner side wall of the button hole <NUM>, and multiple stop pins <NUM> penetrating through an inner wall of the button hole <NUM>. The button cap <NUM> can also be a triangular, polygonal, or other arbitrary shape plate.

Further, the first hook <NUM> has a first boss <NUM> extending from the inner side of the button cap <NUM> and a first transverse arm <NUM> extending from one end of the first boss <NUM>. The second hook <NUM> has a second boss <NUM> extending from the button cap <NUM> and a second transverse arm <NUM> extending from one end of the second boss <NUM>. The stop protrusion <NUM> is movable between the first transverse arm <NUM> and the button cap <NUM>. The stop pin <NUM> is movable between the second transverse arm <NUM> and the button cap <NUM>.

In this implementation, the first boss <NUM> and the second boss <NUM> perpendicularly extend from the inner end surface <NUM> in a direction away from the outer end surface <NUM>. The first boss <NUM> is spaced apart from the first short outer side surface <NUM> and the second boss <NUM> is spaced apart from the second short outer side surface <NUM>. The first transverse arm <NUM> extends from one side of the first boss <NUM> away from the second boss <NUM>. The second transverse arm <NUM> extends from one side of the second boss <NUM> away from the first boss <NUM>. One end of the first transverse arm <NUM> away from the first boss <NUM> is approximately aligned with the first short outer side surface <NUM>. One end of the second transverse arm <NUM> away from the second boss <NUM> is approximately aligned with the second short outer side surface <NUM>. The first transverse arm <NUM> and the inner end surface <NUM> define a first chute therebetween. The second transverse arm <NUM> and the inner end surface <NUM> define a second chute therebetween. The stop protrusion <NUM> can slide in the first chute. The stop pin <NUM> can slide in the second chute. A distance by which the stop protrusion <NUM> slides in the first chute constitutes a pressing sliding distance of the button cap <NUM>. Alternatively, a distance by which the stop pin <NUM> slides in the second chute constitutes a pressing sliding distance of the button cap <NUM>. It can be understood that, both the first hook <NUM> and the second hook <NUM> can be integrally formed with the button cap <NUM>, which makes the button <NUM> simple in structure and easy to manufacture, and the button <NUM> and the frame <NUM> easy to assemble.

Further, referring to <FIG> and <FIG>, the button hole <NUM> has a bottom wall <NUM> opposite to the button cap <NUM>. The first boss <NUM> defines a first groove <NUM> with an opening facing the bottom wall <NUM>. The second boss <NUM> defines a second groove <NUM> with an opening facing the bottom wall <NUM>. The button <NUM> further includes a first elastic member <NUM> and a second elastic member <NUM>. The first elastic member <NUM> is partially received in the first groove <NUM> and the second elastic member <NUM> is partially received in the second groove <NUM>. The first elastic member <NUM> extends beyond one end of the first groove <NUM> and elastically abuts against the bottom wall <NUM>. The second elastic member <NUM> extends beyond one end of the second groove <NUM> and elastically abuts against the bottom wall <NUM>.

In this implementation, the first groove <NUM> extends from an end surface of the first boss <NUM> toward the inner end surface <NUM>. The second groove <NUM> extends from an end surface of the second boss <NUM> toward the inner end surface <NUM>. Both the first elastic member <NUM> and the second elastic member <NUM> are rectangular springs. The first elastic member <NUM> is fixed in the first groove <NUM> at one end of the first elastic member <NUM>, and abuts against the bottom wall <NUM> at the other end of the first elastic member <NUM>. The second elastic member <NUM> is fixed in the second groove <NUM> at one end of the second elastic member <NUM>, and abuts against the bottom wall <NUM> at the other end of the second elastic member <NUM>. Both the first elastic member <NUM> and the second elastic member <NUM> are used to provide the button cap <NUM> with elastic restoring forces in a direction away from the bottom wall <NUM>. When the button cap <NUM> is pressed, the first elastic member <NUM> and the second elastic member <NUM> are compressed, the button cap <NUM> is moved toward the bottom wall <NUM>, and the button post <NUM> can trigger the signal trigger. When the pressing force applied on the button cap <NUM> is removed, the elastic forces of the first elastic member <NUM> and the second elastic member <NUM> exert on the button cap <NUM> and make the button cap <NUM> slide away from the bottom wall <NUM>. When the first transverse arm <NUM> abuts against the stop protrusion <NUM> and the second transverse arm <NUM> abuts against the stop pin <NUM>, the first elastic member <NUM> and the second elastic member <NUM> are in a pre-compressed state, so that the button <NUM> remains in a pressable state.

Optionally, at least one of the first elastic member <NUM> or the second elastic member <NUM> is a rectangular spring.

Optionally, at least one of the first elastic member <NUM> or the second elastic member <NUM> is a torsion spring.

Optionally, at least one of the first elastic member <NUM> or the second elastic member <NUM> is an elastic silicone block or an elastic rubber block.

Further, the frame <NUM> defines a button-post guide hole <NUM> penetrating the bottom wall <NUM>. The button-post guide hole <NUM> is in clearance fit with the button post <NUM>. The button <NUM> is provided with a sealing ring <NUM> which is fastened to a circumferential side of the button post <NUM> and sealingly matches the button-post guide hole <NUM>.

In this implementation, the button-post guide hole <NUM> extends from the inner side surface <NUM> to the bottom wall <NUM>. The button-post guide hole <NUM> serves as a pressing-sliding guide structure of the button <NUM>, so that the button post <NUM> can maintain a slide in a fixed direction aligned with the signal trigger. The button-post guide hole <NUM> penetrates the inner side surface <NUM> so that one end of the button post <NUM> can pass through the inner side surface <NUM> of the frame <NUM> under a pressing action of the button cap <NUM>. Specifically, the bottom wall <NUM> is provided with an extension boss matching the first boss <NUM> and the second boss <NUM>, and the button-post guide hole <NUM> penetrates through to an end surface of the extension boss, so as to increase a depth of the button-post guide hole <NUM> and a guiding stability of the button post <NUM>.

Optionally, the length of the button post <NUM> is greater than the depth of the button-post guide hole <NUM>, which ensures that one end of the button post <NUM> can move out of the button-post guide hole <NUM>.

Optionally, one end of the button-post guide hole <NUM> away from the inner side surface <NUM> is substantially adjacent to the outer side surface <NUM>, such that most of the button cap <NUM> is exposed to the outside of the outer side surface <NUM>, and it is convenient for the button cap <NUM> to receive the pressing force.

Optionally, one end of the button-post guide hole <NUM> away from the inner side surface <NUM> is substantially located at a middle position between the outer side surface <NUM> and the inner side surface <NUM>, thus, there is a safety distance between the button-post guide hole <NUM> and the outer side surface <NUM>, so as to prevent dust and impurities outside the frame <NUM> from entering the button-post guide hole <NUM> to interfere with sliding of the button post <NUM> relative to the frame <NUM>.

In this implementation, the sealing ring <NUM> is elastically deformable. The sealing ring <NUM> in a free state has an outer diameter greater than an inner diameter of the button-post guide hole <NUM>. When the sealing ring <NUM> is inserted into the button-post guide hole <NUM> along with the button post <NUM>, the sealing ring <NUM> will be compressed and deformed under compression action of the inner circumferential wall of the button-post guide hole <NUM>, so that the sealing ring <NUM> can be in close contact with the inner circumferential wall of the button-post guide hole <NUM> to a large extent, and the sealing ring <NUM> can seal a gap between the inner circumferential wall of the button-post guide hole <NUM> and the outer circumferential wall of the button post <NUM>. The sealing ring <NUM> can effectively prevent water, dust, and impurities from entering the inside of the frame <NUM> through the gap between the outer circumferential wall of the button post <NUM> and the inner circumferential wall of the button-post guide hole <NUM>. For example, the electronic device <NUM> is a smart watch, and the electronic device <NUM> uses the sealing ring <NUM> to seal the gap between the button post <NUM> and the inner circumferential wall of the button-post guide hole <NUM>, so that the electronic device <NUM> can meet <NUM> atmospheres (ATMs) waterproof requirement.

In an implementation, the button post <NUM> defines a clamping groove along a circumferential direction at one end of the button post <NUM> away from the button cap <NUM>. The clamping groove has a width which is substantially equal to a difference between the outer diameter and the inner diameter of the sealing ring <NUM>. The sealing ring <NUM> is sleeved on the button post <NUM>. The sealing ring <NUM> is partially clamped into the clamping groove. The sealing ring <NUM> is detachably connected with the button post <NUM> to facilitate disassembly and maintenance of the sealing ring <NUM>. When mounting the button <NUM> to the frame <NUM>, the sealing ring <NUM> is first sleeved on the button post <NUM>, and then the button post <NUM> and the sealing ring <NUM> are integrally inserted into the button-post guide hole <NUM>.

Optionally, the sealing ring <NUM> and the button post <NUM> are formed integrally to increase tightness between the sealing ring <NUM> and the button post <NUM>.

Optionally, the sealing ring <NUM> is made of silicone to improve elastic sealing performance and friction resistance of the sealing ring <NUM>.

Optionally, the sealing ring <NUM> is made of rubber to prolong the service life of the sealing ring <NUM>.

Further, the button <NUM> is further provided with an elastic cushion <NUM>, and the elastic cushion <NUM> is elastically connected with the button post <NUM> and the button cap <NUM>.

In conventional technical schemes, the button cap <NUM> and the button post <NUM> of the button <NUM> are formed integrally, or are firmly fixed together by other means. Generally, the button cap <NUM> has a relative large length between two ends. When pressing one end of the button cap <NUM>, the other end will be lifted up. At the same time, the electronic device <NUM> is provided with a guide structure for slidably guiding the button post <NUM>. When the button cap <NUM> is tilted up, it is easy to cause the button post <NUM> and the guide structure to be non-coaxial and in turn cause the button <NUM> to be stuck. Therefore, the button <NUM> and the button cap <NUM> are designed to form separately, and the button cap <NUM> is movably connected with the button post <NUM>, which is beneficial to allowing the button cap <NUM> to withstand various pressing forces in various forms. As such, even if the button cap <NUM> is tilted up, it will not cause the button post <NUM> to be non-coaxial with the guide structure, and the availability of the button <NUM> is ensured.

In implementations of the disclosure, the elastic cushion <NUM> is connected between the button cap <NUM> and the button post <NUM>, the elastic deformation performance of the elastic cushion <NUM> allows the button cap <NUM> to be movable relative to the button post <NUM>, such that the button post <NUM> is prevented from being stuck due to tilt-up of the button post <NUM>, failure of the button <NUM> can be prevented, the effective pressing performance of the button <NUM> can be ensured, and the service life of the button <NUM> can be prolonged.

In this implementation, the button cap <NUM>, the elastic cushion <NUM>, and the button post <NUM> are sequentially stacked, and integrally extend through the frame <NUM>. The button cap <NUM> is adjacent to the outer side surface <NUM> of the frame <NUM>. The button post <NUM> is adjacent to the inner side surface <NUM> of the frame <NUM>. The button post <NUM> is at least partially located between the outer side surface <NUM> and the inner side surface <NUM>, which is beneficial for supporting button post <NUM> and pressing and directing the button post <NUM> by the frame <NUM>. The elastic cushion <NUM> is located between the outer side surface <NUM> and the inner side surface <NUM>.

During assembling of the button <NUM>, the button post <NUM> and the sealing ring <NUM> are first penetrated into the button-post guide hole <NUM>, such that one end of the button post <NUM> is aligned with the signal trigger inside the frame <NUM>. The elastic cushion <NUM> is then fixed to the other end of button post <NUM> away from the signal trigger, such that the button post <NUM> is securely connected with the elastic cushion <NUM>. And then, the first hook <NUM> of the button cap <NUM> hooks the stop protrusion <NUM>, and the button cap <NUM> is firmly connected to the elastic cushion <NUM>. Finally, the second hook <NUM> is inserted into the button hole <NUM>, and the stop pin <NUM> is inserted into the pin hole <NUM>, so that the second hook <NUM> hooks the stop pin <NUM>.

The elastic cushion <NUM> is substantially perpendicular to the length direction of the button post <NUM>. The elastic cushion <NUM> is attached to the end surface of the button post <NUM> at one surface of the elastic cushion <NUM> which has a relatively large area. A surface of the button cap <NUM> close to the button post <NUM> is attached to the other surface of the elastic cushion <NUM> which has a relatively large area. The button cap <NUM> completely covers the elastic cushion <NUM> to ensure effective contact between the button cap <NUM> and the elastic cushion <NUM>.

It is understood that, when a direction of a pressing force exerted on the button cap <NUM> is inclined relative to the button post <NUM>, one end of the button cap <NUM> will be lifted up, one end of the elastic cushion <NUM> is compressed while the other end of the elastic cushion <NUM> is stretched. That is, the elastic cushion <NUM> absorbs an inclined force applied by the button cap <NUM>, which prevents the inclined force from being transferred to the button post <NUM>, and in turn prevents the button post <NUM> from tilting. The elastic cushion <NUM> is connected with the button post <NUM> and the button cap <NUM>, such that the button cap <NUM> is spaced apart from the button post <NUM>. The length direction of the button post <NUM> can remain aligned with the signal trigger. As such, the button post <NUM> can effectively trigger the signal trigger and can be reset effectively to avoid being stuck.

Optionally, one surface of the elastic cushion <NUM> connected with the button post <NUM> completely covers the end surface of the button post <NUM>.

Optionally, one surface of the elastic cushion <NUM> connected with the button post <NUM> partially covers the end surface of the button post <NUM>.

In implementations of the disclosure, the elastic cushion <NUM> is made of silicone. The elastic cushion <NUM> may be bonded with the button post <NUM> and the button cap <NUM> via double-sided adhesive.

Optionally, the elastic cushion <NUM> may also be made of metal. The elastic cushion <NUM> can be fixedly bonded to the button cap <NUM> and the button post <NUM> via glue.

Optionally, the elastic cushion <NUM> may also be an elastic foam sheet.

Further, the button cap <NUM> defines a fixing groove <NUM>. The elastic cushion <NUM> is partially fixed within the fixing groove <NUM>. The button cap <NUM> defines the fixing groove <NUM> between the first protrusion <NUM> and the second protrusion <NUM>. The elastic cushion <NUM> is partially fixed inside the fixing groove <NUM> to increase the stability between the elastic cushion <NUM> and the button cap <NUM>. Due to the compressibility of the elastic cushion <NUM>, the elastic cushion <NUM> can effectively compensate a tolerance between the button cap <NUM> and the button post <NUM>, so that the button <NUM> can work normally within the tolerance. Due to the cushioning performance of the elastic cushion <NUM>, even under extreme conditions, an impact force applied on the button <NUM> during a collision can be transferred to and absorbed by the elastic cushion <NUM> without being transferred to the button post <NUM> to cause an impact to the signal trigger, which helps to avoid the failure of the electronic device <NUM> when the electronic device <NUM> is dropped, to prolong the service life of the electronic device <NUM>.

Optionally, the elastic cushion <NUM> is bonded in the fixing groove <NUM> via glue. The fixing groove <NUM> can also prevent the glue from overflowing.

Optionally, the elastic cushion <NUM> can also be completely fixed in the fixing groove <NUM>.

Further, referring to <FIG>, the electronic device <NUM> further includes a display screen assembly <NUM> matching the first end surface <NUM> of the frame <NUM> and a rear cover <NUM> matching the second end surface <NUM>.

In this implementation, the display screen assembly <NUM> further includes a transparent cover plate <NUM> matching the first end surface <NUM> and a display screen <NUM> attached to the transparent cover plate <NUM> and located inside the frame <NUM>. The transparent cover plate <NUM> is sealingly connected with the frame <NUM> and the rear cover <NUM> is sealingly connected with the frame <NUM>, so as to ensure the waterproof requirement of the electronic device <NUM>. The display screen <NUM> is electrically coupled with the mainboard inside the frame <NUM> to receive control signals from a processor on the mainboard, so that the display screen <NUM> can display images.

The electronic device <NUM> further includes the signal trigger <NUM> fixed inside the frame <NUM> and opposite to the button <NUM>. The button <NUM> can trigger the signal trigger <NUM> to send an instruction. The electronic device <NUM> further includes a mainboard <NUM> fixed inside the frame <NUM>. The signal trigger <NUM> is disposed on the mainboard <NUM>.

In this implementation, the mainboard <NUM> is fixed inside the accommodating space. The signal trigger <NUM> is disposed on an edge of the mainboard <NUM> adjacent to the inner side surface <NUM>. A processor is disposed on the mainboard <NUM>. The signal trigger <NUM> is electrically coupled with the processor to send electrical signals to the processor. The processor converts electrical signals from the signal trigger <NUM> into various control instructions, and sends the control instructions to various functional components of the electronic device <NUM>, so as to control operations of the functional components of the electronic device <NUM> through the button <NUM>.

In an implementation, referring to <FIG>, the electronic device <NUM> further includes a wearable accessory <NUM> which is detachably connected to the frame <NUM>. The frame <NUM> has two connecting portions opposite to one another. The wearable accessory <NUM> is a watch strap. Ends of the wearable accessory <NUM> are detachably connected to the connecting portions of the frame <NUM>. The electronic device <NUM> is a smart watch. The frame <NUM> defines the button hole <NUM> between the two connections, such that it is easy for the user to operate the button <NUM>.

Optionally, the electronic device <NUM> may also be a smart wristband. The wearable accessory <NUM> is a wrist strap.

In another implementation, the electronic device <NUM> is a mobile phone. The frame <NUM> has two short sides opposite to one another and two long sides <NUM> opposite to one another. The button <NUM> penetrates the long side.

Optionally, the buttons <NUM> penetrate the two long sides of the electronic device <NUM>.

Optionally, two buttons <NUM> penetrate the long side of the electronic device <NUM>, and the two buttons <NUM> may include a volume up key and a volume down key.

Optionally, one button <NUM> penetrates the long side of the electronic device <NUM>. The button <NUM> can be a screen wake-up key, which can also be operated to turn on/off the mobile phone.

Optionally, the button <NUM> can also penetrate the short side of the frame <NUM>.

Further, referring to <FIG> and <FIG>, the stop pin <NUM> has an unlocking end <NUM> exposing an opening of the pin hole <NUM> on an outer surface of the frame <NUM>. The unlocking end <NUM> is provided with a pull clasp <NUM>. The pull clasp <NUM> is configured to drive the stop pin <NUM> to slide out of and unlock from the pin hole <NUM>.

In this implementation, the pull clasp <NUM> is formed on an inner wall of an annular clamping slot at one end of the stop pin <NUM>. The pull clasp <NUM> is provided at one end of the stop pin <NUM>. The stop pin <NUM> can be detached from the frame <NUM> by snapping a tool such as a caliper into the pull clasp <NUM>, which facilitates a detachment of the button <NUM>, so as to realize disassembly and maintenance of the frame <NUM> and the button <NUM>.

In another implementation, referring to <FIG>, the button <NUM> is provided with two elastic cushions <NUM> and two button posts <NUM>. The two elastic cushions <NUM> and the two button posts <NUM> are located between the first hook <NUM> and the second hook <NUM>. One button cap <NUM> can be connected with the two button posts <NUM> via the two elastic cushions <NUM>, respectively. Pressing two ends of the button cap <NUM> can drive the two button posts <NUM> to trigger the two signal triggers <NUM> respectively, so that various pressing operations can be exerted on the one button cap <NUM>.

In another implementation, referring to <FIG>, the button <NUM> is provided with three elastic cushions <NUM> and three button posts <NUM>. The three elastic cushions <NUM> and the three button posts <NUM> are located between the first hook <NUM> and the second hook <NUM>. One button cap <NUM> can be connected with the three button posts <NUM> via the three elastic cushions <NUM> respectively. Pressing two ends and a middle position of the button cap <NUM> can drive the three button posts <NUM> to trigger the three signal triggers <NUM> respectively, so that various pressing operations can be exerted on the one button cap <NUM>.

Claim 1:
An electronic device (<NUM>) comprising a frame (<NUM>), a stop pin (<NUM>), and a button (<NUM>), wherein
the frame (<NUM>) defines a button hole (<NUM>) and a pin hole (<NUM>) in communication with the button hole (<NUM>), wherein an inner side wall of the button hole (<NUM>) is provided with a stop protrusion (<NUM>) at a position away from the pin hole (<NUM>);
the stop pin (<NUM>) is inserted into the pin hole (<NUM>) and partially received in the button hole (<NUM>);
the button (<NUM>) is provided with a first hook (<NUM>) and a second hook (<NUM>) away from the first hook (<NUM>), wherein the first hook (<NUM>) is used for hooking the stop protrusion (<NUM>) and the second hook (<NUM>) is used for hooking the stop pin (<NUM>) to cooperatively limit the button (<NUM>);
the frame (<NUM>) has an outer side surface (<NUM>) and an inner side surface (<NUM>) opposite to the outer side surface (<NUM>), wherein the button hole (<NUM>) extends from the outer side surface (<NUM>) toward the inner side surface (<NUM>) and has a button opening (<NUM>) defined on the outer side surface (<NUM>), and the button (<NUM>) is inserted into the button hole (<NUM>) from the button opening (<NUM>);
the button hole (<NUM>) further has an inner circumferential wall extending from the button opening (<NUM>) toward the inner side surface (<NUM>), wherein the inner circumferential wall is in clearance fit with an outer circumferential wall of the button (<NUM>), wherein the inner circumferential wall has two long inner side surfaces (<NUM>), a first short inner side surface (<NUM>), and a second short inner side surface (<NUM>) opposite to the first short inner side surface (<NUM>), and wherein the first short inner side surface (<NUM>) and the second short inner side surface (<NUM>) are connected with the two long inner side surfaces (<NUM>);
characterized in that
the stop protrusion (<NUM>) extends from the first short inner side surface (<NUM>), and the pin hole (<NUM>) penetrates the long inner side surfaces (<NUM>) and is adjacent to the second short inner side surface (<NUM>).