CN111430166B - Key assembly, key and electronic equipment - Google Patents

Abstract

The application relates to a key assembly, a key and an electronic device, wherein the key assembly comprises a frame body, a key main body and an elastic buckle. The framework is equipped with the mounting groove, and the framework includes spacing portion, and the button main part sets up in the mounting groove, and the elasticity buckle sets up in the button main part, and the elasticity buckle extends to in the framework and is connected with spacing portion buckle through the mounting groove. The application provides a key assembly passes through the elasticity buckle to be connected with spacing portion buckle, can be fixed in the mounting groove with the button main part, need not button fixed bolster, has simplified structural design, has saved material and manufacturing cost.

Description

Key assembly, key and electronic device

technical field

The present application relates to the technical field of keys, in particular to a key assembly, keys and electronic equipment.

Background technique

At present, when the button structure is put into the electronic equipment casing, in order to prevent the buttons from coming out, it is necessary to install a fixing bracket in the electronic equipment casing to fix the button from the inside, because the fixing bracket will cause a raised battery when the fixing bracket is not assembled in place. Cover and other problems, so it is necessary to continuously adjust the installation position and installation angle of the fixed bracket during assembly, the assembly is complicated, and the manufacturing cost and assembly cost are increased; at the same time, the structure of the fixed bracket is complicated, correspondingly, it is used to set the fixed The middle frame groove of the bracket needs to be opened with a small groove for the undercut position, which requires high processing accuracy and increases the processing cost.

Contents of the invention

The purpose of the embodiments of the present application is to provide a button assembly, a button and an electronic device to solve the above problems. The embodiment of the present application achieves the above object through the following technical solutions.

In a first aspect, the embodiment of the present application provides a button assembly, including a frame body, a button body, and an elastic buckle. The frame body is provided with an installation groove, and the frame body includes a limiting part; the key body is arranged in the installation groove; the elastic buckle is arranged in the button body, and the elastic buckle extends into the frame through the installation groove and is buckled connected with the limiting part.

In the second aspect, the embodiment of the present application also provides a button, including a key body and an elastic buckle, the key body is made of metal material, the elastic buckle is made of plastic material or metal material, and the elastic buckle is arranged on the key body .

In a third aspect, the embodiment of the present application further provides an electronic device, including a casing and the above-mentioned key assembly, and the casing is installed on the key assembly.

Compared with the prior art, the button assembly provided by the embodiment of the present application is connected to the limit part through the elastic buckle, so that the main body of the button can be fixed in the installation groove, and there is no need for a button fixing bracket, which simplifies the structural design and saves materials and manufacturing cost, and at the same time avoid problems such as topping the battery cover caused by the improper assembly of the fixed bracket; in addition, during the assembly process, the elastic buckle is directly inserted into the frame through the installation groove, and the elastic buckle can be aligned with the limit position after rebounding and reset. Internal buckle connection, the whole assembly process is convenient and quick, saving assembly cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 shows an exploded view of a button assembly provided by an embodiment of the present application.

Fig. 2 shows a cross-sectional view of the button assembly provided by the embodiment of the present application.

FIG. 3 shows a schematic structural diagram of a button assembly provided by an embodiment of the present application.

FIG. 4 shows a schematic structural diagram of the elastic buckle in the button assembly provided by the embodiment of the present application.

FIG. 5 shows another cross-sectional view of the button assembly provided by the embodiment of the present application.

Fig. 6 shows another cross-sectional view of the button assembly provided by the embodiment of the present application.

FIG. 7 shows an exploded view of a button provided by the embodiment of the present application.

FIG. 8 shows a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, are only for explaining the present application, and should not be construed as limiting the present application.

At present, a side button assembly method commonly used in the field of electronic equipment is to install the side button into the middle frame, and after the buckle of the side button enters the assembly groove in the middle frame, use the fixing bracket to insert the assembly groove to clamp the buckle of the side button. bit, to achieve the purpose of preventing the side key from coming out. However, the structure of the fixing bracket is complicated, and it is often necessary to open a T-shaped slot in the middle frame to limit the fixing bracket, which increases the manufacturing cost. At the same time, the disassembly of the fixing bracket is complicated, and tools are required to pry out the fixing bracket during disassembly, which is easy to damage the middle frame. On the other hand, the side key usually needs to use two fixing brackets, which increases the manufacturing cost and assembly cost, and the assembly is complicated. If the assembly is not in place, it will also cause problems such as a raised battery cover.

In order to simplify the assembly process of the key, in some methods, the two fixing brackets are combined into one to form a larger bracket. Therefore, although the number of fixing brackets is reduced and the assembly process is simplified, the opening of the middle frame is too large due to the greatly increased volume of the brackets, sacrificing the waterproof width of the middle frame. At the same time, the large volume and complex structure of the bracket also increase the difficulty of processing.

In order to solve the above problems, the inventor proposes the button assembly, the button and the electronic device in the embodiments of the present application after research.

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

Please refer to FIG. 1 , the button assembly 100 provided by the embodiment of the present application includes a frame body 110 , a button body 120 and an elastic buckle 130 . Wherein, the frame body 110 is provided with an installation groove 111, and the frame body 110 also includes a limit portion 112 (see FIG. It extends into the frame body 110 through the installation slot 111 and snap-connects with the limiting portion 112 .

The above-mentioned button assembly 100 is snap-connected with the stopper 112 through the elastic buckle 130, so that the button body 120 can be fixed in the installation groove 111 without a button fixing bracket, which simplifies the structural design, saves materials and manufacturing costs, and avoids Problems such as the top of the battery cover caused by the improper assembly of the fixed bracket; in addition, during the assembly process, the elastic buckle 130 is directly inserted into the frame body 110 through the installation groove 111, and the elastic buckle 130 can be connected to the limit part after rebounding and reset. 112 snap connection, the whole assembly process is convenient and fast, saving assembly cost.

The button assembly 100 provided in the embodiment of the present application can be applied to electronic equipment, and the electronic equipment can be but not limited to electronic devices such as mobile phones, tablet computers, and smart watches. In this embodiment, a mobile phone is taken as an example for illustration. The frame body 110 can be a middle frame or a side frame of a mobile phone. The frame body 110 includes adjacent first surfaces 113 and second surfaces 114. The first surface 113 can be the middle frame of the mobile phone. In terms of appearance, the second surface 114 may be the side of the middle frame of the mobile phone facing the battery cover or the rear cover. The installation slot 111 can be provided on the first surface 113, and the extension direction of the installation slot 111 is consistent with the length direction of the frame body 110. The key body 120 can be used as a power key, a volume key or other keys of the mobile phone.

In the embodiment of the present application, the key body 120 includes an appearance surface 121 and an inner surface 122 that are facing away from each other. The key body 120 is roughly strip-shaped, and the length direction of the key body 120 is consistent with the length direction of the frame body 110 . The key body 120 is adapted to the installation groove 111 , and there is only a slight gap between the key body 120 and the installation groove 111 for the key body 120 to press.

Please refer to FIG. 2, in the embodiment of the present application, the elastic buckle 130 includes a buckle body 131 and a buckle foot 132. One end of the buckle body 131 is arranged on the key body 120, and the other end of the buckle body 131 is provided with a buckle foot. 132 , the clamping foot 132 is snap connected with the limiting portion 112 . The above-mentioned elastic buckle 130 can form an undercut in the frame body 110 to hold against the limiting part 112 through the buckle 132, further increasing the stability and firmness of the connection, and the fixing method is simple, and the installation is convenient and fast.

In some embodiments, the buckle body 131 is roughly a columnar structure, the buckle foot 132 is roughly a sheet structure formed by bending one end of the buckle body 131 , and the angle between the buckle foot 132 and the buckle body 131 can be an acute angle. . After the clamping foot 132 rebounds and resets in the frame body 110 , the end of the clamping foot 132 away from the buckle main body 131 abuts against the limiting portion 112 , thereby achieving a snap connection with the limiting portion 112 . Since the clamping feet 132 are bent toward the buckling main body 131 , the occupied space between the clamping feet 132 and the buckling main body 131 can be reduced, making the structure more compact. As an example, the included angle between the clip foot 132 and the clip body 131 may be 50°-70°, and a stable triangular structure is formed between the clip foot 132 and the clip body 131, which can further increase the stability of the clip connection. sex and firmness.

In other possible implementation manners, the elastic buckle 130 may also have other shapes, for example, the buckle main body 131 and the buckle foot 132 are perpendicular to each other, and the buckle connection with the limiting portion 112 may also be realized.

Please refer to FIG. 2 and FIG. 3 together. In the embodiment of the present application, the frame body 110 is provided with a dismantling hole 115 (see FIG. 1 for details), and the dismantling hole 115 and the installation groove 111 communicate with each other in the frame body 110 , the clamping feet 132 are exposed in the dismantling hole 115 . Thus, when the key body 120 needs to be disassembled, a tool can be inserted into the frame body 110 through the dismantling hole 115 and the clamping feet 132 can be squeezed to move toward the buckle main body 131 , and the locking feet 132 can be separated from the limiting portion 112 , so as to remove the key body 120 , the whole dismantling process is convenient and fast, and will not cause mechanical damage to the frame body 110 . At the same time, the dismantling hole 115 has a simple structure, as long as it can expose the clamping feet 132 and facilitate the insertion of foreign objects, there is no need to process redundant assembly features, and it is not necessary to accurately control the machining accuracy. The machining is convenient and can effectively reduce the manufacturing cost. In addition, the dismantling hole 115 is only used to apply external force to the clip 132 , and the cross-sectional area of the dismantling hole 115 can be made very small, thereby avoiding damage to the structural strength of the frame body 110 and reducing the risk of water leakage.

In the embodiment of the present application, the frame body 110 includes an inner surface 116, and the inner surface 116 and the limiting portion 112 are arranged opposite to each other. Groove 117. The limiting groove 117 is used for accommodating the clamping foot 132 and providing a moving space for the elastic buckle 130 . When the key body 120 is pressed, the elastic buckle 130 can move back and forth in the limiting groove 117 .

In some embodiments, the inner surface 116 includes a stepped first inner surface 1161 and a second inner surface 1162, and the distance between the first inner surface 1161 and the first surface 113 is smaller than the distance between the second inner surface 1162 and the first surface. 113 , the first inner surface 1161 is opposite to the limiting portion 112 .

Wherein, the distance between the second inner surface 1162 and the first surface 113 is greater than the distance between the first inner surface 1161 and the first surface 113 to provide a moving space for the elastic buckle 130 when pressed. The first inner surface 1161 is opposite to the limiting portion 112 , and the clamping foot 132 can be squeezed through the distance between the first inner surface 1161 and the limiting portion 112 , so that the key body 120 can be disassembled. In this embodiment, by setting the stepped inner surface 116, the size of the limiting groove 117 can be further reduced under the premise that the limiting groove 117 is used to accommodate the clip 132 and at the same time provide a moving space for the elastic buckle 130 , to avoid reducing the structural strength of the frame body 110 due to excessively large slots.

In the embodiment of the present application, the limiting portion 112 at least partially extends between the limiting groove 117 and the installation groove 111 . The limiting portion 112 may be a protrusion extending integrally from the inner wall of the frame body 110 , and the protrusion is located between the limiting groove 117 and the installation groove 111 . Thus, the limiting part 112 can be used to snap fit with the clip 132, and at the same time, the limiting part 112 can support the key body 120, provide support for the key body 120, and realize the reliable fixing of the key body 120 in the installation groove 111 , to avoid abnormal phenomena such as falling off and misalignment of the key body 120 .

Please refer to FIG. 2 and FIG. 4 together. In some embodiments, the buckle body 131 includes a first body part 1311 and a second body part 1312 integrally formed. One end of the first body part 1311 is set on the key body 120. The other end of the first main body 1311 is provided with a second main body 1312 , the locking feet 132 are disposed on the second main body 1312 , and the width of the first main body 1311 is greater than the width of the second main body 1312 . After the key body 120 is assembled, the first body part 1311 is located in the installation groove 111 , and the second body 1312 passes through the installation groove 111 and extends to the limiting groove 117 . It should be noted that, the width direction of the above-mentioned first body part 1311 and the second body part 1312 is consistent with the length direction of the frame body 110 .

The width of the first main body 1311 is greater than that of the second main body 1312 , on the one hand, it can increase the contact area between the elastic buckle 130 and the button main body 120 to ensure the stability of the connection between the two. On the other hand, reducing the width of the second main body portion 1312 can correspondingly reduce the distance between the limiting portion 112 and the inner wall of the frame body 110, as well as the size of the dismantling hole 115 and the limiting groove 117, resulting in a more compact structure. Avoid reducing the structural strength of the frame body 110 due to too large openings.

In some embodiments, the locking foot 132 is a sheet structure, and the thickness of the locking foot 132 is smaller than the width of the second main body portion 1312 . For example, the thickness of the locking foot 132 may be 0.3-0.5 times the width of the second main body portion 1312 . The thickness of the above-mentioned clip 132 is relatively thin, which can make the clip 132 more elastic, so that it can quickly rebound and reset after being compressed, and also makes the clip 132 easier to be squeezed, which is convenient for pressing the key body 120. Disassemble.

In the embodiment of the present application, a chamfer 118 is provided at an end of the limiting portion 112 , and the chamfer 118 is located on a side of the limiting portion 112 facing the installation groove 111 . Utilizing the guiding function of the chamfer 118 can reduce the contact friction force generated between the elastic buckle 130 inserted into the limiting slot 117 and the limiting portion 112 , which is convenient for assembly.

In the embodiment of the present application, the key body 120 is made of metal material, and the elastic buckle 130 is made of plastic material or metal material. As an implementation, the key body 120 can be made of metal materials such as aluminum, copper, iron, etc., which have excellent physical and chemical properties, such as stable structure, high strength, easy processing, low density, light portability, corrosion resistance and durability. grinding, etc., and make the key body 120 present a metal texture, adapt to the metal shell of the electronic device, and improve the appearance consistency.

In other possible implementation manners, the key body 120 can also be made of plastic or ceramic material, and the key body 120 made of plastic or ceramic material can also have the advantages of stable structure, high strength, corrosion resistance and wear resistance.

In this embodiment, the elastic buckle 130 can be made of ABS (acrylonitrile-butadiene-styrene copolymer), PC (polycarbonate), TPU (polyoxymethylene) and other plastic materials, these plastic materials have high It has the advantages of elasticity, high resilience and easy processing. Elastic buckle 130 can also be made of metal materials with strong elasticity such as spring steel and beryllium bronze, and clip foot 132 can be metal shrapnel made by sheet metal processing technology. Utilizing the elasticity of metal shrapnel can also be convenient and fast. Perform assembly and disassembly of the elastic buckle 130 .

In this embodiment, the elastic buckle 130 is glued to the key body 120 . As an implementation manner, the elastic buckle 130 and the key body 120 can be bonded and formed with an adhesive material, such as silicone, epoxy resin, urethane glue, etc., and the processing process is convenient and fast. The connection between the key body 120 and the elastic buckle 130 can also be formed through an in-mold injection molding process. The key body 120 is formed together, and the combination between the key body 120 and the elastic buckle 130 is strong, which can effectively ensure the structural strength of the key assembly 100 .

Please refer to Figure 1 and Figure 5 together, in this embodiment, the frame body 110 is provided with a circuit board assembly groove 141 and a communication hole 142, the circuit board assembly groove 141 is located on the second surface 114, and the communication hole 142 is located on Between the installation groove 111 and the circuit board assembly groove 141 , and communicate with the installation groove 111 and the circuit board assembly groove 141 . The button assembly 100 further includes a circuit board 151 and a circuit board fixing bracket 152 , the circuit board fixing bracket 151 is installed in the circuit board mounting groove 141 , and the circuit board 151 is arranged in the circuit board fixing bracket 152 .

The button assembly 100 further includes a touch terminal 160 disposed on the button body 120 and extending to the circuit board assembly slot 141 through the communication hole 142 . When the key body 120 is pressed, the touch terminal 160 triggers the circuit board 151 to generate a trigger signal, so that the key assembly 100 can execute the function that the user wants to input. As an implementation manner, the touch terminal 160 can be integrally formed with the button main body 120, which is convenient for processing and manufacturing.

The outer periphery of the touch terminal 160 is also provided with a sealing part 161, and the sealing part 161 is against the inner wall of the frame body 110, so as to prevent water or dust entering the installation groove 111 from entering the interior of the electronic device along the communication hole 142. To achieve the purpose of waterproof and dustproof. As an implementation manner, the sealing portion 161 may be a plastic ring sheathed on the outer periphery of the touch terminal 160 , so as to tightly fill the gap between the touch terminal 160 and the inner wall of the frame body 110 .

In this embodiment, the number of elastic buckles 130 is two, and the two elastic buckles 130 are respectively arranged on both sides of the touch terminal 160 , and the two elastic buckles 130 and the touch terminal 160 are facing toward the side of the key body 120 . Same side extension setting. Correspondingly, the frame body 110 is provided with two limiting portions 112 corresponding to the two elastic buckles 130 , two disassembly holes 115 and two limiting grooves 117 . Of course, in other embodiments, the key body 120 may also be provided with a plurality of elastic buckles 130 and touch terminals 160 , which will not be listed and described in detail here. It should be noted that, in the description of this embodiment, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

The assembly and disassembly process of the button assembly 100 will be described in detail below with reference to FIGS. 2 to 7 .

Please refer to FIG. 5 , before the elastic buckle 130 is inserted into the limiting groove 117 , the clamping foot 132 is in the unfolded state, and the width of the elastic buckle 130 is greater than the distance between the limiting portion 112 and the inner wall of the frame body 110 . It should be noted that the extending direction of the width of the elastic buckle 130 mentioned in this embodiment is consistent with the length direction of the frame body 110 , and the width of the elastic buckle 130 is at the maximum width of the buckle body 131 and the locking foot 132 .

Please refer to FIG. 6 , when the elastic buckle 130 is inserted into the limiting slot 117 , the limiting portion 112 compresses the clamping foot 132 and bends toward the buckle body 131 . The distance to the inner wall of the frame body 110 is compatible with each other, and the elastic buckle 130 can smoothly enter the limiting groove 117 .

Please refer to FIG. 2 , after the elastic buckle 130 enters the limiting groove 117, the clamping foot 132 resets by its own elastic rebound, forms an undercut against the side wall of the limiting part 112, and realizes the contact with the limiting part 112. 112 to fix the key body 120 and complete the assembly of the key body 120 .

Please refer to FIG. 3 , when the key body 120 needs to be disassembled, the clamping feet 132 are squeezed toward the buckle body 131 through the dismantling hole 115, the clamping feet 132 are separated from the limit portion 112, and the key body 120 can come out. .

During the assembly process of the button assembly 100 provided in this embodiment, the elastic buckle 130 is directly inserted into the frame body 110 through the installation groove 111, and the elastic buckle 130 can be snapped and connected with the limiting part 112 after being reset by its own elasticity. Therefore, the button main body 120 is fixed in the installation groove 111, and the whole assembly process is simple and quick, and at the same time, there is no need for a button fixing bracket, which saves material, processing and assembly costs.

Please refer to FIG. 7 , this embodiment also provides a button 200, the button 200 includes a key body 210 and an elastic buckle 220, the key body 210 is made of metal material, and the elastic buckle 220 is made of plastic material or metal material , and the elastic buckle 220 is disposed on the key body 210 .

As an embodiment, the key body 210 can be made of metal materials such as aluminum, copper, iron, etc., the elastic buckle 220 can be made of plastic materials such as ABS, PC, TPU, etc., and the elastic buckle 220 can also be made of spring steel, beryllium, etc. Made of metal materials with strong elasticity such as bronze. The key body 210 and the elastic buckle 220 can be bonded and formed with an adhesive material, or can be connected and formed through an in-mold injection molding process.

The button 200 provided in this embodiment can be applied to electronic equipment, and the electronic equipment can be but not limited to electronic devices such as mobile phones, tablet computers, and smart watches.

Please refer to FIG. 2 and FIG. 7 together. In this embodiment, a mobile phone is taken as an example for illustration. The key 200 can be installed in the frame body 110 to serve as a side key of the mobile phone. For the detailed structure of the frame body 110 , please refer to the relevant descriptions in the above embodiments. The key body 210 can be installed in the installation groove 111 , and the elastic buckle 220 is used for the buckle connection of the limiting part 112 .

The key 200 provided in this embodiment can be fixedly installed in the key body 210 and the installation groove 111 through the buckle connection of the elastic buckle 220 and the limit part 112, thereby eliminating the need for an additional key fixing bracket, which simplifies the assembly structure and saves Material and manufacturing costs. In addition, during the process of assembling the button 200, the elastic buckle 220 is directly inserted into the frame body 110 through the installation groove 111, and the elastic buckle 220 can form a buckle connection with the limiting part 112 after rebounding and resetting, and the whole assembly process is simple. , Fast, can save assembly cost. In addition, when the button 200 needs to be disassembled, a tool can be inserted into the frame body 110 through the dismantling hole 115 and an external force is applied to the elastic buckle 220, so that the elastic buckle 220 is deformed and disengaged from the stopper 112, and can be removed. Press the button 200, and the whole dismantling process is convenient and fast.

In the button 200 provided in the embodiment of the present application, the key body 210 is made of a metal material, so that the key body 210 can present a metallic texture, adapt to the metal casing of the electronic device, and improve the appearance consistency. At the same time, ensure that the key body 210 has the advantages of stable structure, high strength, easy processing, low density, light portability, corrosion resistance and wear resistance. The elastic buckle 220 utilizes its own elasticity to facilitate the assembly and disassembly of the button 200, and at the same time does not require a button fixing bracket, which saves material, processing and manufacturing costs.

In other possible implementation manners, the key body 210 can also be made of plastic or ceramic material, and the key body 210 made of plastic or ceramic material can also have the advantages of stable structure, high strength, corrosion resistance and wear resistance.

Regarding the structural features of other parts of the button 200 , please refer to the detailed description of the button body 120 and the elastic buckle 130 in the above embodiment, and details will not be repeated here.

Please refer to FIG. 8 , the embodiment of the present application also provides an electronic device 300 , which may be, but not limited to, electronic devices such as mobile phones, tablet computers, and smart watches. In this embodiment, a mobile phone is taken as an example for illustration, and the electronic device 300 includes a casing 310 and a key assembly 100 . Wherein, the casing 310 can be a battery cover or a back cover, and the frame 110 in the button assembly 100 can be a middle frame or a frame of a mobile phone, and the casing 310 is arranged on the frame 110, and the casing 310 and the frame 110 can be connected by gluing , can also be integrally formed. The structural features of other parts of the electronic device 300 are within the comprehension scope of those skilled in the art, and will not be repeated here. For the detailed structural features of the key assembly 100 , please refer to the relevant descriptions of the above-mentioned embodiments. Since the electronic device 300 includes the key assembly 100 in the above-mentioned embodiment, it has all the beneficial effects of the key assembly 100 , so it will not be repeated here.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (6)

1. A portable electronic device, comprising:

a housing;

the middle frame is connected to the shell; the middle frame comprises a first surface and a second surface, the first surface is an appearance surface of the middle frame, and the second surface is a surface of the middle frame facing to a rear cover of the portable electronic device; the middle frame is provided with an installation groove and a disassembly hole, the installation groove is arranged on the first surface and penetrates through the first surface, the disassembly hole is arranged on the second surface and penetrates through the second surface, the disassembly hole and the installation groove are mutually communicated in the middle frame, so that the direction of the disassembly hole penetrating through the second surface is intersected with the direction of the installation groove penetrating through the first surface, and the middle frame comprises a limiting part;

the key body is arranged in the mounting groove; and

the elastic buckle is arranged on the key body, extends into the middle frame through the mounting groove and is connected with the limiting part in a buckling mode; the elastic buckle comprises a buckle main body and a clamping pin, one end of the buckle main body is arranged on the key main body, the other end of the buckle main body is provided with the clamping pin, the clamping pin and an included angle between the buckle main bodies are acute angles, the clamping pin is connected with the limiting part buckle, and the clamping pin and the included angle between the buckle main bodies are exposed out of the disassembling hole.

2. The portable electronic device of claim 1, wherein the middle frame comprises an inner surface, the inner surface and the limiting portion are arranged oppositely, a limiting groove is arranged between the inner surface and the limiting portion, and the clamping pin is accommodated in the limiting groove.

3. The portable electronic device of claim 2, wherein the retaining portion extends at least partially between the retaining groove and the mounting groove.

4. The portable electronic device of claim 1, wherein an end of the position-limiting portion is provided with a chamfer, and the chamfer is located on a side of the position-limiting portion facing the mounting groove.

5. The portable electronic device of claim 1, wherein the elastic buckle is made of plastic material or metal material, and the key body is made of metal material.

6. The portable electronic device of claim 1, wherein the resilient snap is glued to the key body.

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