CN217011369U

CN217011369U - Electronic device

Info

Publication number: CN217011369U
Application number: CN202122948380.XU
Authority: CN
Inventors: 于明润; 蔡明�; 黄学龙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-19
Anticipated expiration: 2031-11-29

Abstract

The application relates to an electronic device, including first body, second body and pivot subassembly, first body with the second body all with the pivot subassembly rotates continuously, wherein, the pivot subassembly includes the door plant, the door plant is fixed in respectively first body with the second body, the door plant includes main part and installed part, the installed part installation is fixed in the main part, the material of main part is the metallic glass material. The application provides an electronic equipment, the door plant chooses for use the metallic glass material to make, sets up the door plant into the main part and the installed part of split type structure, makes main part and the independent die-casting shaping of installed part, again with installed part and main part fixed connection to improved the structure adaptability of door plant production, improved the production limitation of door plant by a wide margin.

Description

Electronic device

Technical Field

The application relates to the technical field of electronic terminals, in particular to an electronic device.

Background

A folding screen mobile terminal (hereinafter referred to as a "folder") is a novel mobile communication device, and is also one of the main scenes of the next generation of internet of everything in the future. Among the various structural components of the folding machine, the rotating shaft structure is a key structure for ensuring the basic function of the folding machine and realizing the folding. In the rotating shaft structure, the door plate is a main structural part for protecting the flexible screen and connecting the machine body and the rotating shaft. The physical and chemical properties and the dimensional accuracy of the door plate have key influences on the reliability, the use experience and the like of the folding machine.

The door plate of the rotating shaft of the existing folding machine is mainly formed by one-time die-casting of an amorphous alloy material, and although the existing material has the advantages of high tensile strength, high surface hardness, good wear resistance and the like, in actual production, the existing door plate structure has large limitation, so that the production cost is high, and the further optimization of the structure of the folding machine is limited.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide an electronic equipment to solve the great problem of production limitation of door plant structure among the current electronic equipment.

The application provides an electronic device, including first body, second body and pivot subassembly, first body with the second body all with the pivot subassembly rotates continuously, wherein, the pivot subassembly includes the door plant, the door plant is fixed in respectively first body with the second body, the door plant includes main part and installed part, the installed part installation is fixed in the main part, the material of main part is the metallic glass material.

The application provides an electronic equipment, door plant select for use the metallic glass material to make, set up the door plant into the main part and the installed part of split type structure, make main part and the independent die-casting shaping of installed part, again with installed part and main part fixed connection to the structure adaptability of door plant production has been improved. By selecting the amorphous alloy material and adopting a mode of combining die casting and fixed connection, the technical goals that the dimensional precision of the door panel is less than or equal to 0.02mm, the planeness is less than or equal to 0.03mm, the through yield is more than 80% and the production cost is low can be realized, so that the production limitation of the door panel 1 is greatly improved. The tensile strength of the amorphous alloy material is higher than 1200MPa, and the surface hardness is higher than 500HV, so that the door plate also has higher supporting strength and higher wear resistance. In addition, compare in carbon-fibre composite door plant, stainless steel door plant or high-strength steel injection moulding door plant etc. the metallic glass door plant of this application still has the advantage that weight is lighter, is favorable to realizing the lightweight, promotes user experience.

In a possible design, the main body part is provided with a chimeric structure, and the mounting part is fixedly embedded in the chimeric structure, so that the connection reliability of the main body part and the mounting part can be ensured, and the stability of the door panel structure is ensured.

In a possible design, the engaging structure is a through hole or a groove, and the mounting member is mounted in the through hole or the groove and is welded and fixed with a side wall of the through hole or the groove. The installed part is welded and fixed with the side wall of one end of the through hole or the groove, and the installed part can be fixedly connected with the main body part.

In a possible design, the embedding structure is a through hole, a groove or an irregular special-shaped structure, and the installation part is fixed with the through hole, the groove or the irregular special-shaped structure through embedding casting, so that the door plate has better dimensional accuracy and stability compared with a welding fixing mode.

In a possible design, the mounting member includes a first connecting portion and a second connecting portion, one end of the second connecting portion is fixedly connected with the first connecting portion, the first connecting portion extends along the length direction of the door panel by a first length, and the second connecting portion extends along the width direction of the door panel by a second length, so that stable connection of the mounting member and the main body portion is realized.

In one possible design, the mounting member is a T-shaped structure or an i-shaped structure. When the mounting piece is of a T-shaped structure or an I-shaped structure, the welding length of the mounting piece and the main body part is longer, and the connection stability of the mounting piece and the main body part is further improved. Meanwhile, the mounting piece of the T-shaped structure or the I-shaped structure has high strength and is not easy to deform in the use process of the rotating shaft assembly.

In one possible design, the second connecting portion is provided with a guide portion provided with a guide hole in a thickness direction of the door panel. The guide part can match with other structures of pivot subassembly, and wherein, the guiding hole is arranged in nested or wears to establish other spare parts in the pivot subassembly, ensures the smooth of pivot subassembly process of opening and shutting to improve the motion ride comfort of door plant.

In one possible design, at least two of the installation parts are arranged along the length direction of the door panel, and at least two installation parts are distributed at intervals. With such a structure, the movement smoothness of the door panel can be further improved. When more than two mounting elements are provided, the mounting elements should be evenly distributed on the main body part, that is, the distance between two adjacent mounting elements is equal, so as to ensure that the stress on the connecting surface of the main body part and the mounting elements is even.

In a possible design, the centers of the guide parts of the at least two mounting parts are collinear, so that the centers of the guide holes of the at least two mounting parts are collinear, the size precision of the door panel is improved, and the smooth opening and closing of the rotating shaft assembly are ensured by matching with other structures in the rotating shaft assembly.

In one possible design, the back surface of the main body portion protrudes beyond the back surface of the mounting member, and the distance between the back surface of the main body portion and the back surface of the mounting member is 0.4mm to 0.5 mm. Adopt this kind of structure, the welding of being convenient for, simultaneously, the surface protrusion in the installed part of the back of the body part surface of the back of the body part for body part and installed part can have certain space, and the welding seam that the welding produced is located this space, thereby has guaranteed the plane degree of door plant.

In one possible design, the length of the main body part is L, L is more than or equal to 18mm and less than or equal to 22mm, the width of the main body part is D, D is more than or equal to 4mm and less than or equal to 6mm, the height of the main body part is H, and H is more than or equal to 2mm and less than or equal to 3 mm. In this length, width and height range, can satisfy the pivot subassembly and to the dimensional requirement of door plant, simultaneously, can not occupy the inside too much space of folder, be favorable to realizing the folder miniaturization.

In one possible design, the material of the main body portion includes, but is not limited to, one or more of zirconium-based amorphous, titanium-based amorphous, nickel-based amorphous, copper-based amorphous, iron-based amorphous, and high-entropy alloy.

In a possible design, the material of the mounting member includes but is not limited to one or more of iron-based alloy such as stainless steel, titanium alloy, copper alloy, nickel alloy, aluminum alloy, cobalt alloy, tungsten alloy and zirconium-based amorphous, titanium-based amorphous, nickel-based amorphous, copper-based amorphous, iron-based amorphous, cobalt-based amorphous, high-entropy alloy, metal-based composite material and amorphous metal-based composite material, and the production cost of the door panel can be reduced while the dimensional accuracy of the door panel is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a main body portion according to an embodiment of the present disclosure;

FIG. 3 is a schematic front view of the main body of FIG. 2 in a first embodiment;

FIG. 4 is a rear assembly view of the body portion and mounting member of FIG. 3;

FIG. 5 is a schematic front view of the main body of FIG. 2 in a second embodiment;

FIG. 6 is a schematic structural diagram of a mounting member provided in an embodiment of the present application;

fig. 7 is a front assembly view of the main body and the mounting member of fig. 5.

Reference numerals:

1-a door panel;

11-Main body part

A 111-chimeric structure;

112-a support structure;

12-a mounting member;

121-a first connection;

122-a second connection;

123-a guide;

123 a-a pilot hole;

2-a first body;

3-a second body.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

In one embodiment, the present application is described in further detail by the following embodiments with reference to the accompanying drawings.

The existing folding mobile terminal comprises two shells, wherein a complete flexible screen is arranged on the two shells, and the two shells are connected through a rotating shaft component in a rotating manner so as to be opened and closed through the rotating shaft component. The hinge is one of the core components of the folding mobile terminal, and ensures the basic opening and closing functions of the folding mobile terminal.

In the rotating shaft assembly, the door plate is a main structural part for protecting the flexible screen and connecting the machine body and the rotating shaft. When the folding machine is opened, the door plate can provide support for the flexible screen; when the folder is closed, the gap between the door plates can provide a curling space for the flexible screen, and meanwhile, the structures such as the track grooves on the door plates directly determine the opening and closing experience of the rotating shaft. Therefore, the door panel needs high dimensional accuracy to ensure the smooth opening and closing process of the rotating shaft.

The material of current door plant mainly is metal amorphous material, though current material has tensile strength height, surface hardness height, advantage such as wearability is good, in actual production, the door plant is die-casting forming's integral type structure usually for the production limitation of door plant structure is great, has reduced the optimization potentiality of folder product, has hindered the further optimization of folder structure.

To this end, an embodiment of the present application provides an electronic device, as shown in fig. 1, the electronic device includes a first body 2, a second body 3, and a rotating shaft assembly, and both the first body 2 and the second body 3 are rotatably connected to the rotating shaft assembly. In this embodiment, the electronic device is a folding screen mobile terminal (hereinafter, referred to as a "folder"). The rotating shaft assembly comprises a door panel 1, the door panel 1 is fixed on a first body 2 and a second body 3 respectively, the door panel 1 comprises a main body portion 11 and an installation piece 12, the installation piece 12 is fixed on the main body portion 11, and the main body portion 11 is made of amorphous alloy materials.

In this embodiment, door plant 1 chooses for use the metallic glass material to make, sets up door plant 1 into main part 11 and the installed part 12 of split type structure, makes main part 11 and the independent die-casting shaping of installed part 12, again with installed part 12 and main part 11 fixed connection to the structure adaptability of door plant 1 production has been improved. By selecting the amorphous alloy material and adopting the mode of combining die casting and fixed connection, the technical goals that the dimensional precision of the door plate is less than or equal to 0.02mm, the planeness is less than or equal to 0.03mm, the through yield is more than 80 percent and the production cost is low can be realized, so that the production limitation of the door plate 1 is greatly improved.

The tensile strength of the amorphous alloy material is higher than 1200MPa, and the surface hardness is higher than 450HV, so that the door panel 1 also has higher supporting strength and higher wear resistance.

In addition, compare in carbon-fibre composite door plant, stainless steel door plant or high-strength steel injection moulding door plant etc. amorphous alloy door plant 1 of this application still has the advantage that weight is lighter, is favorable to realizing the lightweight, promotes user experience.

The main components of the metal raw material powder for preparing the door panel 1 include but are not limited to one or more of Fe, Cr, Ni, Co, Zr, Mo, Ti, Hf, Si, V, Al, Cu, Hf and rare earth or rare earth elements.

Specifically, as shown in fig. 2, the main body 11 is provided with a fitting structure 111, and the mounting piece 12 is fixedly fitted to the fitting structure 111.

In this embodiment, the fitting structure 111 is located on the main body 11, and the mounting device 12 is fixedly connected to the main body 11 through the fitting structure 111, so that the connection reliability between the main body 11 and the mounting device 12 can be ensured, thereby ensuring the structural stability of the door panel 1.

The main preparation process of the door panel 1 comprises the following steps: mixing materials, smelting, die casting, post-treatment, pre-welding treatment, assembly, welding, shape correction, post-treatment and the like. In the preparation process of the door plate 1, pure metal raw materials can be mixed and loaded into a vacuum melting crucible, and after the vacuum degree of a cavity meets the requirement, the pure metal raw materials are heated and melted, fully mixed and cooled to form an alloy ingot. Remelting the alloy ingot into molten metal in a die casting furnace, injecting the molten metal into the customized dies of the main body part 11 and the mounting part 12, respectively obtaining blanks of the main body part 11 and the mounting part 12 after the patterns are cooled and solidified, and then performing post-treatment processes such as cutting, deburring and the like on the blanks. After conventional post-processing, after polishing the region to be welded, cleaning the region with an organic solvent such as acetone, alcohol, gasoline, etc., and blow-drying the region at room temperature, and then assembling the body portion 11 and the mounting member 12, and welding the region by the fitting structure. After the welding is finished, the door plate 1 is shaped, and post-treatment processes such as deslagging, polishing and the like are carried out.

More specifically, the fitting structure 111 is a through hole or a groove, and the mounting member 12 is mounted in the through hole or the groove and is welded and fixed to a sidewall of the through hole or the groove.

In this embodiment, the mounting member 12 is welded and fixed to one end side wall of the through hole or the groove to achieve a fixed connection with the main body portion 11. The specific shape of the through hole or the groove is not limited, and as shown in fig. 3 and 4, the fitting structure 111 is a through hole, and the shape of the through hole matches the shape of the mounting member 12, and at this time, the welding length of the fitting structure 111 and the mounting member 12 is longer, and the connection stability is higher. Alternatively, the fitting structure 111 may have a plurality of through holes as shown in fig. 5, and the attachment 12 may be fixed to the side walls of the plurality of through holes by welding, thereby improving the connection strength between the attachment 12 and the fitting structure 111.

When the mounting member 12 and the fitting structure 111 are welded, the front surface welding or the back surface welding may be performed. As shown in fig. 3 to 5, when the front welding method is selected, the supporting structure 112 is provided around the fitting structure 111 on the main body 11, and compared with the back welding method, no other workpiece is needed to support the mounting member 12 during welding, so that the mold opening cost of the workpiece can be saved, and the production cost of the door panel 1 can be reduced.

The main body 11 and the mounting member 12 may be welded by one or more welding methods such as laser welding, arc welding, ultrasonic welding, friction welding, and electric heating welding.

The fitting structure 111 may be a zigzag structure, and the main body 11 and the attachment 12 may be assembled by means of bonding, wrapping, block insertion, or the like, thereby improving the connection strength between the main body 11 and the attachment 12.

In another embodiment, the engaging structure 111 is a through hole, a groove or an irregular shaped structure, and the mounting member 12 is fixed to the through hole, the groove or the irregular shaped structure by insert molding.

In this embodiment, the door panel 1 is produced as follows.

Pure metal raw materials are mixed and loaded into a vacuum melting crucible, heated and melted after the vacuum degree of a cavity meets the requirement, fully mixed and cooled to form an alloy ingot. Remelting the alloy ingot into molten metal in a die casting furnace, die-casting the molten metal into a die of the customized installation part 12, cooling and solidifying the die to obtain a blank of the installation part 12, taking out the solidified installation part 12, cutting, and performing post-treatment processes such as removing mantle and burrs. After the treatment, the mounting pieces 12 are assembled into a die of the customized main body portion 11, and the molten metal is poured into the die of the main body portion 11 to perform secondary die casting, thereby obtaining the completed door panel 1. And finally, carrying out post-treatment processes such as cutting, CNC (computerized numerical control) machining and the like on the door panel 1. In the embodiment, the amorphous installation part 12 is embedded and cast in the amorphous main body part 11 to obtain the complete door panel 1, the flatness of the final finished product is less than or equal to 0.1mm, and the concentricity of the guide hole 123a is +/-0.02 mm. Compared with the door panel 1 in which the main body part 11 and the mounting part 12 are fixedly connected in a welding manner, the preparation method in the embodiment improves the integrity of the door panel 1, and compared with the welding and fixing manner, the door panel 1 has better dimensional accuracy and stability through secondary die casting.

The door panel 1 can also be produced as follows.

Pure metal raw materials are mixed and loaded into a vacuum melting crucible, and after the vacuum degree of a cavity meets the requirement, the mixture is heated and melted, fully mixed and cooled to form an alloy ingot. Remelting the alloy ingot into molten metal in a die casting furnace, assembling the purchased finished product mounting piece 12 into a customized die of the main body part 11, injecting the molten metal into the die of the main body part 11, cooling and solidifying the die to obtain a blank of the door panel 1, taking out and cutting the solidified door panel 1, and finally performing post-treatment processes such as removing mantles, burrs and the like. In the embodiment, the mounting piece 12 made of a material different from that of the main body part 11, such as high-strength steel, is selected for die casting, so that the complete door panel 1 is obtained, the flatness of the final product is less than or equal to 0.1mm, and the concentricity of the guide hole 123a is +/-0.03 mm. The method of using the amorphous main body 11 to insert and cast the heterogeneous mounting member 12, the mounting member 12 can be made of stainless steel, titanium alloy, etc. formed by injection molding of metal powder, and compared with the door panel 1 in which the main body 11 and the mounting member 12 are made of the same material, the manufacturing method in this embodiment can improve the wear resistance of the guide 123, but needs to be purchased separately because of small size. The costs required for the production of the door panel 1 are therefore slightly higher.

In a specific embodiment, as shown in fig. 6, the mounting member 12 includes a first connecting portion 121 and a second connecting portion 122, one end of the second connecting portion 122 is fixedly connected to the first connecting portion 121, the first connecting portion 121 extends along the length direction of the door panel 1 by a first length, and the second connecting portion 122 extends along the width direction of the door panel by a second length.

In this embodiment, the mounting member 12 includes a first connecting portion 121 and a second connecting portion 122 fixedly connected to each other, and the first connecting portion 121 and the second connecting portion 122 extend along the length direction and the width direction of the door panel 1, respectively, so that the welding length can be extended and the stable connection with the main body portion 11 can be achieved.

The first connection portion 121 and the second connection portion 122 may be an integral structure or a separate structure, so that the flexibility of the structure of the mounting member 12 is improved. And the materials of the first connecting portion 121 and the second connecting portion 122 may be the same or different, when the mounting member 12 is composed of the first connecting portion 121 and the second connecting portion 122 which are made of different materials, the dimensional accuracy of the mounting member 12 is higher.

Specifically, the mounting member 12 is a T-shaped structure or an I-shaped structure.

When the mounting member 12 has a T-shaped structure or an i-shaped structure, the welding length between the mounting member 12 and the main body 11 is longer, and the connection stability between the mounting member 12 and the main body 11 is further improved. Meanwhile, the strength of the mounting part 12 of the T-shaped structure or the I-shaped structure is high, and the mounting part is not easy to deform in the use process of the rotating shaft assembly, so that the bearing capacity of the mounting part 12 is improved.

In a specific embodiment, in the thickness direction of the door panel 1, as shown in fig. 6, the second connecting portion 122 is provided with a guide portion 123, and the guide portion 123 is provided with a guide hole 123 a.

In this embodiment, the guide portion 123 can be matched with other structures of the rotating shaft assembly, wherein the guide hole 123a is used for nesting or penetrating other parts in the rotating shaft assembly, so that the rotating shaft assembly is ensured to be smoothly opened and closed, and the smoothness of movement of the door panel 1 is improved.

In a specific embodiment, at least two installation parts 12 are arranged along the length direction of the door panel 1, and the two installation parts 12 are distributed at intervals.

In this embodiment, along the length direction of door plant 1, two at least installed part 12 interval distribution can further improve the motion smoothness of door plant 1. When more than two mounting pieces 12 are provided, the mounting pieces 12 are uniformly distributed on the main body 11, that is, the distances between two adjacent mounting pieces 12 are equal, so as to ensure uniform stress on the connecting surface of the main body 11 and the mounting pieces 12.

Specifically, the centers of the guide portions 123 of at least two of the mounting members 12 are collinear.

In this embodiment, the centers of the guiding portions 123 of the at least two installation members 12 are collinear, so that the centers of the guiding holes 123a of the at least two installation members 12 are collinear, thereby improving the dimensional accuracy of the door panel 1, and ensuring smooth opening and closing of the rotating shaft assembly by matching with other structures in the rotating shaft assembly.

Wherein, the concentricity of each guide hole 123a on the door panel 1 welded by adopting a front welding mode is +/-0.05 mm; the concentricity of each guide hole 123a on the door panel 1 welded by the back welding method is ± 0.03 mm. Therefore, welding the main body portion 11 and the attachment 12 to the back surface can improve the dimensional accuracy of the door panel 1.

In a specific embodiment, as shown in the back assembly view of the main body part and the mounting part in fig. 4, the back surface of the main body part 11 protrudes from the back surface of the mounting part 12, and the distance between the back surface of the main body part 11 and the back surface of the mounting part 12 is 0.4mm to 0.5 mm.

In this embodiment, a distance of 0.4mm to 0.5mm is provided between the back surface of the main body 11 and the back surface of the mounting member 12, which facilitates welding. Meanwhile, the back surface of the main body 11 protrudes out of the back surface of the mounting part 12, so that the main body 11 and the mounting part 12 can have a certain space, and the solder and the welding seam generated by welding are located in the space, thereby ensuring the flatness of the door panel 1.

Wherein, the flatness of the finished product of the door panel 1 welded by adopting a front welding mode is less than or equal to 0.15 mm; the flatness of the finished door panel 1 welded by the back welding mode is less than or equal to 0.1 mm. Therefore, welding the main body portion 11 and the attachment 12 to the back surface can improve the dimensional accuracy of the door panel 1.

In a specific embodiment, the length of the main body portion 11 is L, 18mm L22 mm, the width of the main body portion 11 is D, 4mm D6 mm, the height of the main body portion 11 is H, 2mm H3 mm. Within the length, width and height ranges, the size requirement of the rotating shaft assembly on the door plate 1 can be met, meanwhile, the excessive space inside the folding machine cannot be occupied, and the miniaturization of the folding machine is facilitated. Preferably, the body portion 11 may have a length L of 19mm, 20mm or 21mm, a width D of 4mm, 5mm or 6mm and a height H of 2mm, 2.5mm or 3 mm.

In the electronic device provided by the present application, the material of the main body portion 11 of the door panel 1 includes, but is not limited to, one or more of zirconium-based amorphous, titanium-based amorphous, nickel-based amorphous, copper-based amorphous, iron-based amorphous, and high-entropy alloy, and the material of the mounting member 12 includes, but is not limited to, one or more of iron-based alloy such as stainless steel, titanium alloy, copper alloy, nickel alloy, aluminum alloy, cobalt alloy, tungsten alloy, zirconium-based amorphous, titanium-based amorphous, nickel-based amorphous, copper-based amorphous, iron-based amorphous, cobalt-based amorphous, high-entropy alloy, metal-based composite material, and amorphous metal-based composite material, so that the production cost of the door panel 1 can be reduced while the dimensional accuracy of the door panel 1 is improved.

It is noted that a portion of this patent application contains material which is subject to copyright protection. The copyright owner reserves the copyright rights whatsoever, except for making copies of the patent files or recorded patent document contents of the patent office.

Claims

1. The utility model provides an electronic equipment, includes first body, second body and pivot subassembly, first body with the second body all with the pivot subassembly rotates continuously, its characterized in that, the pivot subassembly includes the door plant, the door plant is fixed in respectively first body with the second body, the door plant includes main part and installed part, the installed part installation is fixed in the main part, the material of main part is the metallic glass material.

2. The electronic apparatus according to claim 1, wherein the main body portion is provided with a fitting structure, and the mounting member is fixedly fitted to the fitting structure.

3. The electronic device of claim 2, wherein the fitting structure is a through hole or a groove, and the mounting member is mounted in the through hole or the groove and is welded to a sidewall of the through hole or the groove.

4. The electronic device of claim 2, wherein the fitting structure is a through hole or a groove, and the mounting member is fixed to the through hole or the groove by insert casting.

5. The electronic device according to any one of claims 1 to 4, wherein the mounting member includes a first connecting portion and a second connecting portion, one end of the second connecting portion is fixedly connected to the first connecting portion, the first connecting portion extends along a length direction of the door panel by a first length, and the second connecting portion extends along a width direction of the door panel by a second length.

6. The electronic device of claim 5, wherein the mounting member is a T-shaped structure or an I-shaped structure.

7. The electronic apparatus according to claim 6, wherein the second connecting portion is provided with a guide portion provided with a guide hole in a thickness direction of the door plate.

8. The electronic device of claim 7, wherein at least two of the mounting elements are disposed along a length of the door panel, and at least two of the mounting elements are spaced apart.

9. The electronic device of claim 8, wherein centers of the guides of the at least two mounts are collinear.

10. The electronic device of claim 3, wherein the back surface of the main body portion protrudes beyond the back surface of the mounting member, and a distance between the back surface of the main body portion and the back surface of the mounting member is 0.4mm to 0.5 mm.

11. The electronic device of claim 9, wherein the length of the main body portion is L, 18mm L22 mm, the width of the main body portion is D, 4mm D6 mm, the height of the main body portion is H, 2mm H3 mm.