CN108924318B - Electronic device and assembly method thereof - Google Patents

Abstract

The application provides an electronic device and an assembly method thereof. The electronic device comprises a middle frame, a glass panel and a receiver net, wherein the middle frame comprises a bottom wall and a side wall, the side wall bends and extends from the edge of the bottom wall, the glass panel is covered on the bottom wall and is abutted to the side wall, a containing hole is formed in the glass panel, the receiver net is assembled in the containing hole and in interference fit with the containing hole, and a sound outlet hole is formed in the receiver net. The utility model provides an efficiency that earphone net was dismantled and is maintained can be improved.

Description

An electronic device and its assembly method

Technical field

The present application relates to the technical field of electronic devices, and in particular to an electronic device and an assembly method thereof.

Background technique

With the popularization of electronic devices and the rapid development of electronic technology, devices such as mobile communication terminals (such as mobile phones), PDAs (Personal Digital Assistant, PDA), mobile computers, tablet computers and other devices are becoming more and more important in people's lives. For example, people use electronic device for making calls.

In the technical field of electronic devices, the earpiece net is generally installed inside the electronic device. Because the sound hole of the earpiece net is very small, it is difficult to block the sound hole of the earpiece net when too much dust is deposited on the earpiece net. Effective cleaning of dust. Only when the sound transmission effect of the earpiece net is seriously affected, the user has to disassemble the electronic device and take out the earpiece net for cleaning. This cleaning efficiency is low, and the electronic device is not easy to assemble back to its original state after being disassembled.

Contents of the invention

The present application provides an electronic device. The electronic device includes a middle frame, a glass panel and an earpiece net. The middle frame includes a bottom wall and a side wall. The side wall bends and extends from the edge of the bottom wall. The glass panel cover is provided on the bottom wall. On the glass panel and abutting against the side wall, the glass panel is provided with an accommodating hole. The earpiece net is assembled in the accommodating hole and interference-fits with the accommodating hole. The earpiece net is provided with a sound outlet.

This application also provides an assembly method of an electronic device. The electronic device includes a middle frame, a glass panel and a handset net. The middle frame includes a bottom wall and a side wall. The side wall bends and extends from the edge of the bottom wall. The glass panel has an opening. There is an accommodating hole, and the earpiece net is provided with a sound outlet; the assembly method includes: placing the glass panel cover on the bottom wall and abutting against the side wall; and assembling the earpiece net in the accommodating hole with an interference fit.

Beneficial effects of this application: the earpiece net is fixed on the receiving hole of the glass panel in an interference fit manner, and the glass panel and the middle frame are stacked. During the daily use of electronic devices, the sound hole of the earpiece mesh will be blocked by dust and other foreign matter. At this time, because the earpiece mesh is fixed on the glass panel with an interference fit, it can be removed without disassembly. Remove the earpiece net from the receiving hole without removing other parts of the electronic device. After cleaning the earpiece net, the earpiece net can be installed into the receiving hole with an interference fit from the outside of the glass panel. Therefore, the entire cleaning process of the earpiece net is reduced, thereby improving the cleaning efficiency of the earpiece net.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed 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 of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of an embodiment of an electronic device provided by the present application;

Figure 2 is a schematic cross-sectional view of an embodiment of the earpiece network area of the electronic device provided by the present application;

Figure 3 is a schematic three-dimensional structural diagram of an embodiment of the earpiece network provided by this application;

Figure 4 is a schematic three-dimensional structural diagram of another embodiment of the earpiece network provided by this application;

Figure 5 is a schematic cross-sectional structural diagram of another embodiment of the earpiece network provided by this application;

Figure 6 is a schematic cross-sectional view of another embodiment of the earpiece network area of the electronic device provided by the present application;

Figure 7 is a schematic structural diagram of an embodiment of the earpiece net and plastic matching parts provided by the present application in an exploded state;

Figure 8 is a schematic cross-sectional structural diagram of an embodiment of the assembly state of the earpiece net and plastic matching parts provided by the present application;

Figure 9 is a schematic cross-sectional view of another embodiment of the earpiece network area of the electronic device provided by the present application;

Figure 10 is a schematic cross-sectional structural diagram of another embodiment of the assembled state of the earpiece net and plastic matching parts provided by the present application;

Figure 11 is a schematic cross-sectional view of another embodiment of the earpiece network area of the electronic device provided by the present application;

FIG. 12 is a schematic flowchart of the assembly method of the electronic device of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for convenience of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of this application.

Please refer to FIG. 1 , which is a schematic structural diagram of an embodiment of an electronic device provided by the present application.

The electronic device of this embodiment may include an earpiece net 10 , a glass panel 20 , a middle frame 30 , a back shell 40 and a receiver 50 . The earpiece net 10 is detachably fixed on the glass panel 20 . The glass panel 20 , the middle frame 30 , and the back shell 40 are stacked in sequence. The receiver 50 is fixed in the space between the middle frame 30 and the back shell 40 .

Electronic devices include electronic devices such as smartphones, tablet computers, smart wearable devices, digital audio and video players, e-readers, handheld game consoles and vehicle-mounted electronic devices. The receiver 50 is widely used in electronic devices. The receiver 50 is also called a handset, or Receiver in English. The receiver 50 is a device that converts audio electrical signals into The electroacoustic device for sound signals, the sound signal generated by the receiver 50 passes through the middle frame 30 and the earpiece net 10 on the glass panel 20 in turn and enters the human ear.

The glass panel 20 is the outermost glass of the display screen facing the user. The main function of the glass panel 20 is to protect the touch screen and display screen inside the electronic device and to decorate the appearance.

Please refer to FIG. 2 , which is a schematic cross-sectional view of an embodiment of the earpiece network 10 area of the electronic device provided by the present application.

Specifically, the middle frame 30 includes a bottom wall 31 and a side wall 32. The side wall 32 bends and extends from the edge of the bottom wall 31. The side wall 32 can extend perpendicular to the bottom wall 31, and the side wall 32 can also extend generally perpendicular to the bottom wall 31. The side wall 32 and the bottom wall 31 may be assembled from two separate parts, or the side wall 32 and the bottom wall 31 may be different components of a single part. The glass panel 20 is covered on the bottom wall 31 and abuts on the side wall 32 to complete the fixed installation of the glass panel 20 . The middle frame 30 has a communication hole 33 extending through the bottom wall 31 , and the receiver 50 is installed on the side of the bottom wall 31 away from the earpiece net 10 .

The glass panel 20 is provided with an accommodating hole 21 for placing the earpiece net 10. The shape of the accommodating hole 21 can be circular, the shape of the accommodating hole 21 can also be elliptical, and the shape of the accommodating hole 21 can also be a racetrack. The shape of the receiving hole 21 can also be square or other shapes, which is not limited here.

The shape of the outer surface of the earpiece mesh 10 is similar to or the same as the shape of the accommodating hole 21. When the earpiece mesh 10 is assembled in the accommodating hole 21, the earpiece mesh 10 elastically abuts the inner surface of the accommodating hole 21, thereby being in contact with the accommodating hole 21. 21 interference fit. Optionally, the outer side of the earpiece net 10 does not exceed the outer side of the glass panel 20 to prevent the electronic device from directly scratching the earpiece net 10 during daily use and affecting the normal operation of the earpiece net 10 . The outer side of the earpiece net 10 can also be flush with the outer side of the glass panel 20 to ensure the integrity of the appearance of the electronic device.

The earpiece net 10 is provided with a sound hole 11. The positions of the sound hole 11 and the communication hole 33 correspond to each other. The sound signal generated by the receiver 50 passes through the communication hole 33 and the sound hole 11 in sequence and enters the human ear.

The material of the earpiece net 10 may include metal materials such as stainless steel, aluminum or magnesium alloy. The material of the earpiece net 10 may also include PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene copolymer), TPU (thermoplastic Plastic materials such as polyurethane elastomer) or PMMA (polymethylmethacrylate).

The technical solution of this embodiment has beneficial effects that are different from the prior art: the earpiece net 10 is fixed on the receiving hole 21 of the glass panel 20 in an interference fit manner, and the glass panel 20, the middle frame 30, and the rear shell 40 are stacked in sequence. The receiver 50 is fixed in the space between the middle frame 30 and the rear case 40 . During the daily use of the electronic device, the sound hole 11 of the earpiece net 10 will be blocked by foreign matter such as dust. At this time, because the earpiece net 10 is fixed on the glass panel 20 with an interference fit, it can be Take out the earpiece net 10 from the receiving hole 21 without disassembling other parts of the electronic device. After the earpiece net 10 is cleaned, the earpiece net 10 can be installed into the accommodating hole 21 with an interference fit from the outer side of the glass panel 20 . Therefore, the entire cleaning process of the earpiece net 10 is reduced, thereby improving the cleaning efficiency of the earpiece net 10 .

Please refer to Figure 2. The earpiece net 10 includes a main panel 12 and a side panel 13. The side panel 13 extends from the edge of the main panel 12 to form a deformation space 14. The main panel 12 is provided with a sound hole 11, and the side panel 13 is elastically abutted against the receiving hole. 21 on the inner surface. Further, the ends of the side plates 13 are bonded to the bottom wall 31 using, for example, double-sided tape or glue.

The outer side of the motherboard 12 does not exceed the outer side of the glass panel 20 to prevent the electronic device from directly scratching the earpiece net 10 during daily use and affecting the normal operation of the earpiece net 10 . The outer side of the main board 12 can also be flush with the outer side of the glass panel 20 to ensure the integrity of the appearance of the electronic device.

The side plate 13 can extend from the edge of the main board 12 at right angles to the main board 12. At this time, the earpiece net 10 can complete the interference fit with the accommodating hole 21 by virtue of the deformation of the main board 12 itself, such as the material of the earphone net 10. It is made of elastic plastic material.

The side panels 13 may also extend from the edge of the main panel 12 at an obtuse angle to the main panel 12 . Specifically, the side plate 13 extends from the edge of the main plate 12 in a direction away from the deformation space 14 so that the angle between the side plate 13 and the main plate 12 is an obtuse angle. At this time, the cross-sectional size of the side plate 13 in the direction from the end close to the main board 12 to the end far away from the main board 12 gradually increases. When the side plate 13 elastically abuts against the inner surface of the accommodating hole 21 , the side plate 13 will move toward It gradually shrinks in the direction close to the deformation space 14, so that the expansion force of the side plate 13 gradually increases until the earpiece net 10 and the accommodation hole 21 reach a balanced state.

Please refer to Figures 2 and 3 at the same time. The side plate 13 includes adjacent outer side 131, bottom surface 132 and inner side 133. The outer side 131 faces the inner surface of the receiving hole 21, and the bottom surface 132 faces the bottom wall 31 of the middle frame 30. The side surface 133 is arranged opposite to the outer side surface 131 .

In one embodiment, a rounded corner or a chamfered corner 15 is provided at the intersection between the outer surface 131 and the bottom surface 132 to facilitate guiding the earpiece net 10 to be inserted into the accommodating hole 21 .

Please refer to FIG. 4 . In another embodiment, at least one deformation groove 16 is formed on one end of the side plate 13 away from the main plate 12 . The deformation groove 16 penetrates the outer side 131 , the bottom surface 132 and the inner side 133 . It can be understood that the deformation direction of the side plate 13 in the deformation groove 16 is different from the deformation direction of the side plate 13 in the deformation space 14, so that a complementarity is formed between the deformation groove 16 and the deformation space 14, and the side plate of the earpiece net 10 is increased. 13 shape-shifting abilities. The shape of the deformation groove 16 may be a square notch, and the shape of the deformation groove 16 may also be a trapezoidal notch or other shapes. The number of deformation grooves 16 may be one, or the number of deformation grooves 16 may be multiple, and the plurality of deformation grooves 16 are evenly distributed on the side plate 13 . In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

Please refer to FIGS. 2 and 5 simultaneously. In another embodiment, the side plate 13 includes a first side part 134 and a second side part 135. Opposite ends of the first side part 134 are respectively connected with the main board 12 and the second side part. 135 is connected, the first side part 134 extends from the edge of the main plate 12 in a direction away from the deformation space 14, and the second side part 135 extends from the edge of the first side part 134 in a direction close to the deformation space 14, so that the side plate 13 forms An arcuate structure facing away from the deformation space 14 . The cross-sectional size of the first side portion 134 gradually increases from the end close to the main board 12 to the end far away from the main board 12 . When the first side portion 134 elastically abuts against the inner surface of the accommodating hole 21 , the first side portion 134 134 will gradually shrink in the direction closer to the deformation space 14, so that the expansion force of the first side portion 134 gradually increases until the earpiece mesh 10 and the accommodating hole 21 reach a balanced state. The cross-sectional size of the second side part 135 gradually decreases in the direction from an end close to the first side part 134 to an end far away from the first side part 134. When the earpiece net 10 is assembled into the receiving hole 21, the second side The first side portion 135 first enters the accommodating hole 21 , and the first side portion 134 is gradually deformed under the guidance of the second side portion 135 until it is an interference fit in the accommodating hole 21 .

Please refer to Figure 6. The earpiece net 10 includes a main board 12, a side plate 13 and a plastic fitting 60. The side plate 13 extends from the edge of the main board 12 to form a deformation space 14. The main board 12 is provided with a sound hole 11. The plastic fitting 60 and The side plates 13 are connected, and the plastic fitting 60 is elastically compressed between the accommodating hole 21 and the side plate 13 so that the earpiece mesh 10 and the accommodating hole 21 are interference-fitted. The material of the plastic fitting 60 may include PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene copolymer), TPU (thermoplastic polyurethane elastomer) or silicone and other plastic materials with certain deformability.

Please refer to Figures 6 and 7 at the same time. The side plate 13 includes adjacent outer side 131, bottom surface 132 and inner side 133. The outer side 131 faces the inner surface of the receiving hole 21, and the bottom surface 132 faces the bottom wall 31 of the middle frame 30. The side surface 133 is arranged opposite to the outer side surface 131 . The side plate 13 is provided with a notch 17 at the junction of the outer surface 131 and the bottom surface 132 , and the plastic fitting 60 is assembled in the notch 17 . The plastic fitting 60 can be fixed in the notch 17 by bonding, such as double-sided tape or glue; the plastic fitting 60 can also be fixed in the notch 17 by integral molding, such as integral injection molding.

Optionally, the side plate 13 is provided with a boss 18 on the surface of the notch 17 , and the plastic fitting 60 cooperates with the boss 18 to increase the connection strength of the plastic fitting 60 and the side plate 13 in one piece. Furthermore, the cross-sectional area of the boss 18 gradually increases from the end in contact with the side plate 13 to the opposite end thereof, so that the plastic fitting 60 and the side plate 13 form an undercut fixing mechanism after being integrally formed.

Please refer to FIGS. 6 to 8 . In another embodiment, the side panel 13 extends from the edge of the main panel 12 at right angles to the main panel 12 . The plastic fitting 60 is assembled in the notch 17 and at least partially protrudes from the side panel. The outer side 131 of 13 ensures that when the earpiece net 10 is assembled in the accommodating hole 21, the plastic fitting 60 can be elastically compressed between the accommodating hole 21 and the side plate 13. It can be understood that when the side panel 13 extends from the edge of the main panel 12 at an obtuse angle to the main panel 12 , the plastic fitting 60 is assembled in the notch 17 , and the plastic fitting 60 can be aligned with or protrude from the outer surface 131 of the side panel 13 . on the outer surface 131 of the side plate 13 .

Please refer to Figures 9 and 10. In another embodiment, the plastic fitting 60 includes a main body part 61 and an extension part 62. The main body part 61 is assembled in the notch 17 (see Figure 7) and is elastically compressed in the receiving hole 21. Between the glass panel 13 and the side plate 13 , the extension portion 62 extends from the edge of the main body portion 61 in a direction away from the deformation space 14 and contacts the inner surface of the glass panel 20 to further enhance the stability of the earpiece net 10 .

Please refer to Figure 11. In another embodiment, the earpiece net 10 includes a main board 12, a side plate 13 and a connecting plate 70. The side plate 13 extends from the edge of the main board 12 to form a deformation space 14. The main board 12 is provided with a sound hole 11. , the side plate 13 elastically contacts the inner surface of the accommodating hole 21 , the connecting plate 70 is connected to the edge of the side plate 13 and bent and extended toward the direction of the deformation space 14 , the side plate 13 is bonded to the bottom wall 31 through the connecting plate 70 connection to increase the bonding area between the earpiece mesh 10 and the bottom wall 31 . The connecting plate 70 and the side plate 13 may be two separate parts assembled together, or the connecting plate 70 and the side plate 13 may be two different parts of a single part.

The electronic device further includes foam 80. Opposite sides of the foam 80 are respectively in contact with the bottom wall 31 and the glass panel 20. The projection of the foam 80 on the bottom wall 31 is arranged around the projection of the accommodating hole 21 on the bottom wall 31. This prevents external impurities from entering the internal environment of the electronic device when the earpiece net 10 is disassembled and repaired.

Optionally, a stop portion 34 is protruding from the side of the bottom wall 31 facing the earpiece net 10 . The stop portion 34 surrounds the projection of the accommodating hole 21 on the bottom wall 31 to form an accommodating space together with the bottom wall 31 . groove, when the earpiece net 10 is disassembled and replaced, external dust will inevitably enter the inside of the electronic device, and the receiving groove effectively isolates the external dust. Further, the opposite sides of the foam 80 are in contact with the bottom wall 31 and the glass panel 20 respectively, and are accommodated in the accommodating groove at the same time, so as to increase the dust-proof effect of the accommodating groove.

Reference herein to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

All directional indications (such as outer and inner) in the embodiments of this application are only used to explain a certain component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

Please refer to FIG. 1 , FIG. 2 and FIG. 12 . FIG. 12 is a schematic flowchart of an embodiment of an assembly method of an electronic device provided by the present application. The electronic device includes a middle frame 30, a glass panel 20 and an earpiece mesh 10. The middle frame 30 includes a bottom wall 31 and a side wall 32. The side wall 32 bends and extends from the edge of the bottom wall 31. The glass panel 20 has a receiving hole 21. , the earpiece net 10 is provided with a sound hole 11 .

M101: Cover the glass panel 20 on the bottom wall 31 and contact the side wall 32 .

The electronic device also includes parts such as a back case 40 and a receiver 50. First, the electronic components such as the receiver 50 are fixed on one side of the bottom wall 31 of the middle frame 30, and the back case 40 is covered on the middle frame 30. Electronic components such as the receiver 50 are assembled between the middle frame 30 and the rear case 40 ; and then the glass panel 20 is covered on the side of the bottom wall 31 away from the receiver 50 and abuts against the side wall 32 .

M102: Assemble the earpiece net 10 into the accommodating hole 21 with an interference fit.

After assembling the main frame of the electronic device, install the earpiece net 10 into the accommodating hole 21 from the outer side of the glass panel 20. The earpiece net 10 interferes with the accommodating hole 21, thereby completing the fixation of the earpiece net 10. In the electronic device During daily use, when the sound outlet 11 of the earpiece net 10 is blocked by foreign matter such as dust, the earpiece net 10 can be taken out from the accommodating hole 21 without disassembling other parts of the electronic device. After the earpiece net 10 is cleaned, the earpiece net 10 can be installed into the accommodating hole 21 with an interference fit from the outer side of the glass panel 20 .

The above descriptions are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies fields are equally included in the scope of patent protection of this application.

Claims (8)

1. An electronic device, the electronic device comprising:

the middle frame comprises a bottom wall and a side wall, and the side wall is bent and extended from the edge of the bottom wall;

a glass panel, which is covered on the bottom wall and is abutted against the side wall, wherein the glass panel is provided with an accommodating hole; and

The earphone net is assembled in the accommodating hole and in interference fit with the accommodating hole, and a sound outlet hole is formed in the earphone net;

the bottom wall is provided with a communication hole at a position corresponding to the sound outlet hole;

the electronic device further comprises a receiver which is arranged on one side of the bottom wall, which is far away from the receiver net, wherein sound signals generated by the receiver can sequentially pass through the communication hole and the sound outlet hole;

the earphone net comprises a main board and a side board, the side board extends from the edge of the main board to form a deformation space, the main board is provided with the sound outlet hole, and the side board is elastically abutted to the accommodating hole;

the side plates extend from the edges of the main plate to the direction deviating from the deformation space, so that an included angle between the side plates and the main plate is an obtuse angle;

one end of the side plate, which is away from the main plate, is provided with at least one deformation groove;

the side plate comprises a first side part and a second side part, two opposite ends of the first side part are respectively connected with the main plate and the second side part, the first side part extends from the edge of the main plate to the direction deviating from the deformation space, and the second side part extends from the edge of the first side part to the direction approaching to the deformation space.

2. The electronic device of claim 1, wherein the electronic device comprises a plurality of electronic devices,

the end parts of the side plates are connected with the bottom wall in an adhesive mode.

3. The electronic device of claim 2, wherein the electronic device comprises a plurality of electronic devices,

the electronic device further comprises a connecting plate, the connecting plate is connected with the edge of the side plate and bends and extends towards the direction of the deformation space, and the side plate is connected with the bottom wall in an adhesive mode through the connecting plate.

4. The electronic device of claim 1, wherein the electronic device comprises a plurality of electronic devices,

the side plate is provided with an outer side face and a bottom face which are adjacently connected, the outer side face faces the inner face of the accommodating hole, the bottom face faces the bottom wall, and a notch is formed in the joint of the outer side face and the bottom face;

the electronic device further comprises a plastic matching piece, the plastic matching piece is assembled in the notch, and the plastic matching piece is elastically compressed between the accommodating hole and the side plate.

5. The electronic device of claim 4, wherein the electronic device comprises a plurality of electronic devices,

the plastic matching piece comprises a main body part and an extension part, wherein the main body part is assembled in the notch and elastically compressed between the accommodating hole and the side plate, and the extension part extends from the edge of the main body part to the direction away from the deformation space and is abutted to the inner side surface of the glass panel.

6. The electronic device of claim 5, wherein the electronic device comprises a plurality of electronic devices,

the earphone net and the plastic matching piece are of an integrated structure.

7. The electronic device of claim 6, wherein the electronic device comprises a plurality of electronic devices,

the side plate is provided with a boss on the surface of the notch, and the plastic matching piece is matched with the boss so as to increase the connection strength of the plastic matching piece and the side plate.

8. A method of assembling an electronic device, comprising:

the electronic device comprises a middle frame, a glass panel and a receiver net, wherein the middle frame comprises a bottom wall and side walls, the side walls bend and extend from the edges of the bottom wall, the glass panel is provided with a containing hole, and the receiver net is provided with a sound outlet hole; the bottom wall is provided with a communication hole at a position corresponding to the sound outlet hole; the electronic device further comprises a receiver which is arranged on one side of the bottom wall, which is far away from the receiver net, wherein sound signals generated by the receiver can sequentially pass through the communication hole and the sound outlet hole; the earphone net comprises a main board and a side board, the side board extends from the edge of the main board to form a deformation space, the main board is provided with the sound outlet hole, and the side board is elastically abutted to the accommodating hole; the side plates extend from the edges of the main plate to the direction deviating from the deformation space, so that an included angle between the side plates and the main plate is an obtuse angle; one end of the side plate, which is away from the main plate, is provided with at least one deformation groove; the side plate comprises a first side part and a second side part, opposite ends of the first side part are respectively connected with the main plate and the second side part, the first side part extends from the edge of the main plate to the direction deviating from the deformation space, and the second side part extends from the edge of the first side part to the direction approaching to the deformation space;

the assembly method comprises the following steps:

the glass panel cover is arranged on the bottom wall and is abutted against the side wall;

and the receiver net is assembled in the accommodating hole in an interference fit mode.