WO2024037424A1

WO2024037424A1 - Assembly structure and mobile terminal

Info

Publication number: WO2024037424A1
Application number: PCT/CN2023/112302
Authority: WO
Inventors: 邓建华; 姚得磅; 汤电迎; 丁延明; 项晓敏
Original assignee: 华为技术有限公司
Priority date: 2022-08-16
Filing date: 2023-08-10
Publication date: 2024-02-22
Also published as: CN117640801A

Abstract

An assembly structure (1a) and a mobile terminal, which relate to the technical field of assembly. The assembly structure (1a) comprises: a first structural member, which comprises a horizontal assembly face (201) and a side vertical assembly face (202), the horizontal assembly face (201) being connected to the side vertical assembly face (202) so as to form an assembly region; a second structural member, which comprises a first surface and a second surface, which are connected to each other, and is placed in the assembly region, the first surface facing the horizontal assembly face (201), a first assembly seam being formed between the first surface and the horizontal assembly face (201), the second surface facing the side vertical assembly face (202), and a second assembly seam being formed between the second surface and the side vertical assembly face (202); a first sealing member (50), which is provided at the first assembly seam between the first surface and the horizontal assembly face (201); and a second sealing member (60), which is provided at the second assembly seam between the second surface and the side vertical assembly face (202). The assembly structure (1a) can not only reduce the thickness of the entire unit, but can also achieve the waterproofing effect of a simple waterproof path.

Description

A splicing structure and mobile terminal

This application claims priority to the Chinese patent application filed with the China Patent Office on August 16, 2022, with application number 202210983359. Applying.

Technical field

The present application relates to the field of splicing technology, and in particular to a splicing structure and a mobile terminal.

Background technique

The thickness of mobile terminals (such as mobile phones, foldable mobile phones, foldable tablets, foldable computers and other terminal devices) has a significant impact on consumers' experience. Thinner mobile phones are more likely to be favored by consumers. Existing mobile phone solutions have an integrated structure with a mid-frame battery compartment, and the thin wall thickness of the battery compartment is at least 0.35mm, which hinders the design goal of thinner and lighter mobile phones.

Contents of the invention

Embodiments of the present application provide a splicing structure. In order to achieve a thin and light design of the whole machine, a high-modulus aluminum sheet is used to splice the middle frame while ensuring the waterproof performance of the middle frame. A sealing waterproof structure is provided at the splicing seam. . The splicing structure solution can be used to reduce the thickness of the entire machine to improve the user experience, and can also achieve the waterproofing effect of a simple waterproof path to save costs.

In order to achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

In a first aspect, embodiments of the present application provide a splicing structure, including: a first structural member (for example, a middle frame), including a horizontal splicing surface and a lateral splicing surface. The horizontal splicing surface is connected to the lateral splicing surface to form a splicing structure. area; the second structural member (for example, a high-modulus aluminum sheet) includes a connected first surface and a second surface, and the second structural member is placed in the splicing area; the first surface is arranged facing the horizontal splicing surface, and the first surface and There is a first splicing seam between the horizontal splicing surfaces; the second surface is arranged facing the lateral splicing surface, and there is a second splicing seam between the second surface and the lateral splicing surface; a first sealing member is provided between the first surface and the lateral splicing surface. The first joint seam between the horizontal joint surfaces; the second sealing member is provided at the second joint seam between the second surface and the lateral joint surface.

The first joining seam between the first surface and the horizontal joining surface is provided with a first sealing member, and the first sealing member is used to achieve sealing and waterproofing; the second joining seam between the second surface and the lateral joining surface is provided with a first sealing member. The second sealing member is used to achieve sealing and waterproofing. Therefore, the splicing structure of the embodiment of the present application can not only reduce the thickness of the entire machine to improve user experience, but also achieve the waterproofing effect of a simple waterproof path and save costs.

In a possible implementation of the above first aspect, the second splicing seam includes a main splicing seam and a widened splicing seam. The main splicing seam and the widened splicing seam are connected, and are spliced along the first surface and side. In the opposite direction, the width of the widened splicing seam is greater than the width of the main splicing seam, and the widened splicing seam is provided with a second sealing member.

In a possible implementation of the above first aspect, a third sealing member is further included, covering the first structural member, the second structural member and the second sealing member at the same time.

In a possible implementation of the above first aspect, the first sealing member and the second sealing member are connected.

In a possible implementation of the above first aspect, the splicing area is in a ring shape, the horizontal splicing surface is in a ring shape, and the lateral splicing surface is in a ring shape.

In a possible implementation of the above first aspect, the first sealing member is in a ring shape, and the ring-shaped first sealing member is placed on a horizontal splicing surface of the ring shape.

In a possible implementation of the above first aspect, the main splicing seam in the second splicing seam is in a ring shape, and the widened splicing seam in the second splicing seam includes first widened splicing seams arranged oppositely along the first direction. The wide splicing seam and the second widening splicing seam, the first widening splicing seam and the second widening splicing seam are respectively provided with second sealing members.

In a possible implementation of the above first aspect, at least a part of the third sealing member that simultaneously covers the first structural member, the second structural member and the second sealing member extends along the first direction.

In a possible implementation of the above first aspect, the third sealing member includes dispensing glue.

In a possible implementation of the above first aspect, the first sealing member includes dispensing glue.

In a possible implementation of the above first aspect, the second sealing member includes dispensing glue.

In a possible implementation of the above first aspect, the first structural member includes a middle frame, and the second structural member includes an aluminum sheet.

In a possible implementation of the above first aspect, the middle frame and the aluminum sheet surround the battery compartment.

In a possible implementation of the above first aspect, the aluminum sheet is a high-modulus aluminum sheet, and the elastic modulus of the high-modulus aluminum sheet is greater than 100 Gpa.

In a second aspect, embodiments of the present application provide a mobile terminal using the splicing structure described in any one of the above first aspects.

In a possible implementation of the above second aspect, it also includes: a first body and a second body, the first body and the second body are rotationally connected through a rotating shaft to switch between the folded position and the unfolded position, and the rotating shaft is along the first Extending in the direction, the first body and/or the second body are provided with a splicing structure.

In a possible implementation of the above second aspect, a battery is also included, the splicing structure surrounds a battery compartment, and the battery is accommodated in the battery compartment.

Description of drawings

Figure 1 shows a perspective view of a foldable mobile phone according to some embodiments of the present application;

Figure 2 shows a top view of a foldable mobile phone according to some embodiments of the present application;

Figure 3 shows a side view of a foldable mobile phone according to some embodiments of the present application;

Figure 4 shows a partial enlarged view of a foldable mobile phone according to some embodiments of the present application;

Figure 5 shows a second perspective view of a foldable mobile phone according to some embodiments of the present application;

Figure 6 shows a third perspective view of a foldable mobile phone according to some embodiments of the present application;

Figure 7 shows a fourth perspective view of a foldable mobile phone according to some embodiments of the present application;

Figure 8 shows a first perspective view of the splicing structure in a foldable mobile phone according to some embodiments of the present application;

Figure 9 shows a top view of the splicing structure in a foldable mobile phone according to some embodiments of the present application;

Figure 10 shows a side view of the splicing structure in a foldable mobile phone according to some embodiments of the present application;

Figure 11 shows a second perspective view of the splicing structure in a foldable mobile phone according to some embodiments of the present application;

Figure 12 shows a third perspective view of the splicing structure in a foldable mobile phone according to some embodiments of the present application;

Figure 13 shows a fourth perspective view of the splicing structure in a foldable mobile phone according to some embodiments of the present application.

Detailed ways

Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Embodiments of the present application provide a splicing structure. In order to achieve a thin and light design of the whole machine, a solution of splicing high-modulus aluminum sheets with the middle frame is used, and a sealing and waterproof structure is provided at the splicing joint to ensure the waterproof performance of the middle frame. It not only reduces the thickness of the whole machine to improve the user experience, but also achieves the waterproof effect of a simple waterproof path, saving costs.

An embodiment of the present application provides a mobile terminal using a splicing structure. Specifically, the mobile terminal includes but is not limited to mobile phones, foldable mobile phones, tablet computers (tablet personal computers), e-book readers, laptop computers (laptop computers), personal digital assistants (personal digital assistant, PDA), personal computers , laptops, vehicle equipment, wearable devices (such as watches), boxes and other electronic devices that use splicing structures.

For convenience of explanation, the following description takes the mobile terminal as a foldable mobile phone as an example. The following describes the foldable mobile phone of the present application with specific embodiments.

Figure 1 shows a perspective view (expanded state) of the foldable mobile phone 1 according to the embodiment of the present application. Figure 2 shows a top view (expanded state) of the foldable mobile phone 1 according to the embodiment of the present application. Figure 3 shows the foldable mobile phone 1 according to the embodiment of the present application. A side view of the foldable mobile phone 1. Figure 4 shows a partial enlarged view of the foldable mobile phone 1 according to the embodiment of the present application. Figure 5 shows the second perspective view (expanded state) of the foldable mobile phone 1 according to the embodiment of the present application.

As shown in FIGS. 1 to 5 , the foldable mobile phone 1 includes a first body (including a left middle frame 10 ), a second body (including a right middle frame 20 ), and a rotating shaft 30 . The first body and the second body are rotationally connected through a rotating shaft 30 to switch between the folding position and the unfolding position (shown in Figures 1, 2 and 5). Among them, the first body and the second body respectively extend along the length direction of the folding mobile phone 1 (shown in the Y direction in Figures 1, 2 and 5), and along the width direction of the folding mobile phone 1 (Figures 1, 2 and 5). (shown in the X direction in 5) are located on opposite sides of the rotating shaft 30. For example, the above-mentioned rotating shaft 30 extends along the length direction of the foldable mobile phone 1 . For example, the length direction and width direction of the foldable mobile phone 1 are perpendicular to each other.

For example, electronic components, such as batteries, control circuit boards and other components, are disposed inside the first body and the second body. The embodiment of the present application takes the battery installed inside the second body as an example. The second body is provided with a splicing structure 1a. The splicing structure 1a surrounds a battery compartment 21 (as shown in Figure 3), and a battery (not shown) is accommodated in the battery compartment 21. In some possible implementations, the first body is provided with the above-mentioned splicing structure 1a, that is, a battery is provided inside the first body.

In addition, in some possible implementations, the splicing structure 1 a is not limited to surrounding the battery compartment 21 . For example, both the first body and the second body are provided with splicing structures 1a. One of the splicing structures 1a surrounds the battery compartment 21, and the other splicing structure 1a surrounds the circuit board compartment (for placing circuit boards).

The specific structure of the splicing structure will be described in detail below with reference to the accompanying drawings.

Referring to Figures 1, 2, 4 and 5, the splicing structure 1a of the embodiment of the present application includes a spliced right middle frame 20 and an aluminum sheet 40. For example, the aluminum sheet 40 is a high-modulus aluminum sheet, and the elastic modulus of the high-modulus aluminum sheet is, for example, greater than 100 Gpa.

FIG. 6 shows the first perspective view of the right middle frame 20 without the aluminum sheets 40 being spliced. FIG. 7 shows the second perspective view of the right middle frame 20 without the aluminum sheets 40 being spliced. Referring to Figures 6 and 7, the right middle frame 20 includes a horizontal splicing surface 201 and a side elevation splicing surface (including a first side elevation splicing surface 202 and a second side elevation splicing surface 203 described later). The horizontal splicing surface 201 is connected to the side elevation splicing surface 203. The splicing surfaces are connected and form a splicing area. Figures 6 and 7 show that the splicing area has a ring shape (for example, a rectangle), the horizontal splicing surface 201 has a ring shape (for example, a rectangle), and the lateral splicing surface has a ring shape.

The lateral splicing surfaces include first lateral splicing surfaces 202 spaced apart along the length direction (shown in the Y direction in Figures 6 and 7), and spaced apart along the width direction (shown in the X direction in Figures 6 and 7). A second lateral splicing surface 203 is provided. Illustratively, the lateral joining surfaces (the first lateral joining surface 202 and the second lateral joining surface 203 ) are perpendicular to the horizontal joining surface 201 . That is, the side rising splicing surfaces (the first side rising joining surface 202 and the second side rising joining surface 203) extend in the thickness direction. Equivalently, the splicing area of the right middle frame 20 is in the shape of steps.

The above-mentioned aluminum sheet 40 is in a plate shape. The surface of the aluminum sheet 40 includes an upper surface, a lower surface and surrounding side surfaces. The upper surface and lower surface of the aluminum sheet 40 are spaced apart along the thickness direction (shown in the Z direction in Figure 5). The surrounding side surfaces of the sheet 40 are connected to the upper surface and the lower surface respectively. When the aluminum sheet 40 is placed in the splicing area, the lower surface of the aluminum sheet 40 faces the horizontal splicing surface 201 of the right middle frame 20 , and the surrounding side surfaces of the aluminum sheet 40 face the ring-shaped side splicing surface (the first side splicing surface). The surface 202 and the second lateral splicing surface 203) are provided. That is, the lower surface of the aluminum sheet 40 is placed on the horizontal splicing surface 201 of the right middle frame 20 . The shape of the splicing area is adapted to the shape of the aluminum sheet 40 . When the aluminum sheet 40 is placed in the splicing area of the right middle frame 20 , the aluminum sheet 40 and the right middle frame 20 form a battery compartment 21 , in which the lower surface of the aluminum sheet 40 can be used to carry the battery contained in the battery compartment 21 .

Compared with the integrated structure of the middle frame battery compartment, the splicing scheme of the high modulus aluminum sheet 40 and the right middle frame 20 in the embodiment of the present application can reduce the thickness of the battery compartment 21 from 0.35mm to 0.20mm, and can reduce the thickness of the right middle frame. Frame 20 thickness reduces the weight of the whole machine.

In addition, the lower surface of the above-mentioned aluminum sheet 40 is placed behind the horizontal splicing surface 201, and there is a first splicing seam between the lower surface and the horizontal splicing surface 201 (for example, the location of the first sealing member 50 described later). The aluminum sheet 40 There is a second joining seam (for example, the location of the second sealing member 60 described later) between the surrounding sides and the lateral joining surfaces (for example, the first lateral joining surface 202 and the second lateral joining surface 203). The first joining seam and the second joining seam intersect the waterproof path of the right middle frame 20 .

The first joint between the lower surface and the horizontal joint surface 201 is provided with a first seal 50. The first seal 50 is used to achieve sealing and waterproofing; The second joint seam between the lateral joining surface 202 and the second lateral joining surface 203) is provided with a second sealing member 60, and the second sealing member 60 is used to achieve sealing and waterproofing.

Therefore, the splicing structure 1a of the embodiment of the present application can not only reduce the thickness of the entire machine to improve user experience, but also achieve a waterproof effect with a simple waterproof path and save costs. Although the first stitching seam and the second stitching seam intersect the waterproof path of the right middle frame 20, the waterproofing does not fail.

For example, referring to FIGS. 6 and 7 , the first sealing member 50 is in a ring shape, and the ring-shaped first sealing member 50 is placed on the ring-shaped horizontal splicing surface 201 . Illustratively, the first seal 50 includes a dispensing glue. That is, at the splicing seam between the right middle frame 20 and the aluminum sheet 40, the horizontal splicing surface 201 of the right middle frame 20 is bonded to the aluminum sheet 40 with one glue dispensing, thereby achieving waterproofing of the horizontal splicing surface 201.

Illustratively, the second seal 60 includes a dispensing glue. That is, at the joint between the right middle frame 20 and the aluminum sheet 40, the lateral splicing surface of the right middle frame 20 (for example, the first lateral splicing surface 202 and the second lateral splicing surface 203) is dispensed with the aluminum sheet twice. 40% bonding to achieve waterproofing of the side splicing surface. In some possible implementations, primary glue dispensing and secondary glue dispensing are connected together, thus improving the sealing and waterproof performance of the spliced structure 1a.

In some possible implementations, the secondary dispensing is in the shape of a ring. That is, glue is dispensed twice between the first lateral splicing surface 202 and the side surface of the aluminum sheet 40 , and at the same time, glue is also dispensed twice between the second lateral splicing surface 203 and the side surface of the aluminum sheet 40 . Thereby, the glue at the first splicing seam and the glue at the second splicing seam are connected together to improve the sealing and waterproof performance.

Referring to Figure 5, the second splicing seam in the embodiment of the present application includes a main splicing seam P1 and a widened splicing seam P2. The main splicing seam P1 and the widened splicing seam P2 are connected, along the sides of the aluminum sheet 40 and In the direction opposite to the side splicing surface of the right middle frame 20 (shown in the Y direction in Figure 5), the width of the widened splicing seam P2 is greater than the width of the main splicing seam P1, and the widened splicing seam P2 is provided with a second Seal 60. That is, the second joining seam is locally widened. As a result, the waterproof glue dispensing path of the second splicing seam is widened. By partially widening the splicing seam P2 and dispensing glue and scraping the glue, the waterproof effect of the waterproof glue dispensing path passing through the second splicing seam is guaranteed.

The setting of widening the splicing seam P2 makes the splicing seam between the side of the aluminum sheet 40 and the first side standing splicing surface 202 of the right middle frame 20 Improved waterproof performance. This can prevent water at the rotating shaft of the foldable mobile phone 1 from flowing into the battery compartment 21 from left to right. That is, the glue dispensing at the widened joint P2 blocks water from entering the battery compartment 21 .

This application does not limit the formation form of the widened splicing seam P2, and any form that can widen the splicing seam P2 belongs to the protection scope of this application. For example, referring to FIG. 7 , in the embodiment of the present application, concave first notches 2023 are respectively provided on the two first lateral splicing surfaces 202 of the right middle frame 20 . Each first side standing splicing surface 202 includes a first sub-side standing splicing surface 2022 and a second sub-side standing splicing surface 2021 . Each first notch 2023 has a first sub-side upright splicing surface 2022, and the first sub-side upright splicing surface 2022 and the second sub-side upright splicing surface 2021 are not on the same plane. That is, along the length direction, the length between two oppositely arranged first sub-side upright splicing surfaces 2022 is greater than the length between two oppositely arranged second sub-side upright splicing surfaces 2021 . When the aluminum sheet 40 is placed on the horizontal splicing surface 201, the side surface (for example, a flat surface) of the aluminum sheet 40 and the first sub-side joint surface 2022 form a widened joint seam P2, and the side surface of the aluminum sheet 40 is vertically connected to the second sub-side joint surface 2022. The splicing surface 2021 forms the main splicing seam P1. For example, glue is dispensed twice at the main seam P1 and the widened seam P2. In some possible implementations, glue may be dispensed twice only at the widened seam P2.

In addition, due to the widened width of the widened splicing seam P2, it is also convenient to implement secondary dispensing here, which is conducive to the formation of a waterproof path.

Figure 7 shows that the main splicing seam P1 in the second splicing seam is in the shape of a ring, and the widened splicing seam P2 in the second splicing seam includes two widened splicing seams P2 arranged oppositely along the first direction. , the two widened joint seams P2 are respectively provided with second sealing members 60. In some possible implementations, a concave first notch 2023 is provided on one of the two first side joining surfaces 202 of the right middle frame 20 to form the above-mentioned widened joining seam P2.

Continuing to refer to Figures 1, 2 and 4, the splicing structure 1a of the embodiment of the present application also includes a third seal 70. The third seal 70 simultaneously covers the right middle frame 20, the aluminum sheet 40 and the above-mentioned second seal 60. . Illustratively, the third seal 70 extends along the length direction. Illustratively, the third seal 70 includes dispensing glue. That is, based on the above-mentioned first sealing member 50 and second sealing member 60, a third sealing member 70 is further provided. That is, on the basis of the above-mentioned primary dispensing and secondary dispensing, three dispensings are performed to complete the waterproofing of the waterproof path. A in FIGS. 1 and 2 shows a waterproof path, which includes primary dispensing (first seal 50 ), secondary dispensing (second seal 60 ), and third dispensing (third seal 70 ).

Moreover, as shown in FIG. 4 , the primary dispensing (first sealing member 50 ), the second dispensing (second sealing member 60 ), and the third dispensing (third sealing member 70 ) are connected along the thickness direction (Fig. (shown in the Z direction in 4) overlap. That is, after completing the first dispensing, when performing the second dispensing, the second dispensing and the first dispensing will intersect and connect; after completing the second dispensing, during the third dispensing, the third dispensing will be connected with the second dispensing. Interchange connection.

This can effectively prevent water at the rotating axis of the foldable mobile phone 1 from flowing into the battery compartment 21 from left to right (B in Figures 1 and 2 shows the flow of water). That is, the first glue dispensing (the first sealing member 50 ), the second glue dispensing (the second sealing member 60 ), and the third glue dispensing (the third sealing member 70 ) form a waterproof blocking strip. With this setting, you can not only use the splicing solution to thin the thickness of the entire machine to improve the user experience, but also achieve the waterproofing effect of a simple waterproof path, saving costs.

Figure 8 shows a first perspective view of another splicing structure 1a of the mobile phone according to the embodiment of the present application. Figure 9 shows a top view of another splicing structure 1a of the mobile phone according to the embodiment of the present application. Figure 10 shows the first perspective view of another splicing structure 1a of the mobile phone according to the embodiment of the present application. A side view of another splicing structure 1a of the mobile phone according to the embodiment. Figure 11 shows the second perspective view of another splicing structure 1a of the mobile phone according to the embodiment of the present application. Figure 12 shows another another splicing structure 1a of the mobile phone according to the embodiment of the present application. The third perspective view of a splicing structure 1a. Figure 13 shows the fourth perspective view of another splicing structure 1a of the mobile phone according to the embodiment of the present application.

As shown in Figures 8 to 13, the splicing structure 1a of the embodiment of the present application also includes a spliced right middle frame 20 and an aluminum sheet 40. The right middle frame 20 includes a horizontal splicing surface 201 and a first side splicing surface 202. The horizontal splicing surface 201 is connected to the first side splicing surface 202 and forms a splicing area. At the joint between the right middle frame 20 and the aluminum sheet 40, the horizontal splicing surface 201 of the right middle frame 20 is glued to the aluminum sheet 40 at one time, thereby achieving waterproofing of the horizontal splicing surface 201; the first side of the right middle frame 20 is vertically The splicing surface 202 is glued to the aluminum sheet 40 twice to achieve waterproofing of the first vertical splicing surface 202; glue is dispensed three times to complete the overall waterproofing. The dotted line A in FIG. 9 shows a waterproof path, which includes primary dispensing (first seal 50 ), secondary dispensing (second seal 60 ), and third dispensing (third seal 70 ). This can effectively prevent water at the rotating axis of the foldable mobile phone 1 from flowing from right to left (B in FIG. 9 shows the flow direction of water) from flowing into the battery compartment 21 .

For example, the right middle frame 20 and the aluminum sheet 40 are also connected by bolts to improve the connection stability of the right middle frame 20 and the aluminum sheet 40 . As shown in Figure 11, the aluminum sheet 40 includes a lug 41. The right middle frame 20 is provided with a groove 204 at a position corresponding to the lug 41 of the aluminum sheet 40. The lug 41 is placed in the groove 204 and passes through the lug 41. Bolted. For example, the lug 41 of the aluminum sheet 40 protrudes from the second notch 401 of the aluminum sheet 40 described below.

As shown in Figure 10, the primary dispensing (first seal 50), the second dispensing (second seal 60) and the third dispensing (third seal) The seals 70) are connected and overlap along the thickness direction (shown in the Z direction in Figure 10). For details, please refer to the above related descriptions about primary dispensing (first sealing member 50 ), secondary dispensing (second sealing member 60 ), and third dispensing (third sealing member 70 ).

The difference from the above-mentioned splicing structure 1a shown in FIGS. 1 to 7 is at least that, with reference to FIGS. 8 and 9 , the third seal 70 not only extends along the length direction (shown in the Y direction in FIG. 9 ), but also The member 70 also extends in the width direction (shown in the X direction in Figure 9). That is, glue is dispensed on the aluminum sheet 40 and the right middle frame 20 not only along the length direction but also along the width direction. FIG. 11 shows that the surface of the middle right frame 20 is provided with a glue dispensing area P3. The shape of the dispensing area P3 is not limited, and any shape that can realize dispensing falls within the protection scope of this application. Figure 11 shows that the dispensing area P3 is roughly L-shaped.

In addition, in the above embodiment, FIG. 7 shows that the first lateral splicing surface 202 of the right middle frame 20 is provided with a concave first notch 2023 to form the above-mentioned widened splicing seam P2. Referring to FIG. 11 , in the embodiment of the present application, a concave second notch 401 is provided on the side of the aluminum sheet 40 facing the first lateral joining surface 202 of the right middle frame 20 . A widened joint seam P2 is formed between the two notches 401 and the first lateral joining surface 202 (for example, a plane) of the right middle frame 20 . Similarly, along the direction opposite to the side surface of the aluminum sheet 40 and the first side vertical splicing surface 202 of the right middle frame 20 (shown in the Y direction in FIG. 11 ), the width of the widened splicing seam is greater than the width of the main splicing seam P1 .

In some possible implementations, the first lateral splicing surface 202 of the right middle frame 20 is provided with a concave first notch 2023 , and the aluminum sheet 40 faces the first lateral splicing surface 202 of the right middle frame 20 . A concave second notch 401 is provided on the side, and the first notch 2023 and the second notch 401 are arranged oppositely to form a widened joint seam P2.

Referring to Figures 12 and 13, the horizontal splicing surface 201 and the first lateral splicing surface 202 of the right middle frame 20 of the embodiment of the present application are linear. As shown in FIGS. 12 and 13 , the splicing area of the right middle frame 20 also includes a blocking portion 205 . For example, the blocking portion 205 is arranged parallel to the first lateral splicing surface 202 of the right middle frame 20 and protrudes from the horizontal splicing surface 201 of the right middle frame 20 . Therefore, the horizontal splicing surface 201, the first lateral splicing surface 202 and the blocking portion 205 of the right middle frame 20 surround the dispensing groove P4. The above-mentioned first sealing member 50 is formed by dispensing glue once in the dispensing groove P4, and the first sealing member 50 will not leak.

Moreover, as shown in FIGS. 11 and 12 , after the glue dispensing groove P4 is dispensed and scraped once, the first sealing member 50 and the blocking portion 205 are on the same plane. When the aluminum sheet 40 is bonded to the first sealing member 50, the first sealing member 50 and the blocking portion 205 can play a role in supporting the aluminum sheet 40, and at the same time, the aluminum sheet 40 can be placed on a horizontal plane, thereby improving the splicing quality of the splicing structure 1a. .

It should be noted that this solution is not limited to waterproofing the internal splicing solutions of mobile phones, but can also solve similar waterproofing problems in other electronic products. That is, the splicing structure 1 a is not limited to being formed by splicing the right middle frame 20 and the aluminum sheet 40 . The right middle frame 20 and the aluminum sheet 40 can also be other structural components. For example, the splicing structure 1a is formed by splicing a first structural component and a second structural component. The first structural component includes the above-mentioned horizontal splicing surface 201 and the above-mentioned first side. The vertical splicing surface 202 and the horizontal splicing surface 201 are connected with the first side vertical splicing surface 202 and form a splicing area. The second structural member includes a connected first surface and a second surface, and the second structural member is placed in the splicing area; the first surface is arranged facing the horizontal splicing surface 201, and there is a first splicing between the first surface and the horizontal splicing surface 201. seam; the second surface is arranged facing the first lateral splicing surface 202, and there is a second seam between the second surface and the first lateral splicing surface 202; the above-mentioned first seal 50 is provided on the first surface and the horizontal splicing surface The first joining seam between the surfaces 201; the above-mentioned second sealing member 60 is provided at the second joining seam between the second surface and the first lateral joining surface 202.

Similarly, the above-mentioned third sealing member 70 may also be included. For the arrangement form of the third sealing member 70, refer to the relevant descriptions of the above-mentioned embodiments. In addition, the second splicing seam also includes the above-mentioned main splicing seam P1 and the widened splicing seam P2. For details, please refer to the relevant description of the above embodiment.

To sum up, the embodiment of the present application adopts a design of a waterproof sealing structure for the splicing seams: the horizontal splicing surface of the middle frame is glued once and bonded to the aluminum sheet to achieve waterproofing of the horizontal splicing surface; the joints are partially widened and glued twice. Squeeze glue to achieve waterproofing on the side splicing surface; apply glue three times on the waterproof path of the middle frame to complete the waterproofing of the entire waterproof path, and ultimately achieve the waterproof goal of the entire machine. It can not only reduce the thickness of the whole machine and improve the user experience, but also achieve the waterproof effect of a simple waterproof path to save costs.

Claims

A splicing structure, characterized by including:

The first structural member includes a horizontal splicing surface and a lateral splicing surface. The horizontal splicing surface is connected to the lateral splicing surface and forms a splicing area;

A second structural member includes a connected first surface and a second surface, and the second structural member is placed in the splicing area;

The first surface is arranged facing the horizontal splicing surface, and there is a first splicing seam between the first surface and the horizontal splicing surface;

The second surface is arranged facing the lateral splicing surface, and there is a second splicing seam between the second surface and the lateral splicing surface;

A first sealing member is provided at the first splicing seam between the first surface and the horizontal splicing surface;

A second sealing member is provided at the second joint seam between the second surface and the lateral joint surface.
The splicing structure according to claim 1, wherein the second splicing seam includes a main splicing seam and a widened splicing seam, and the main splicing seam and the widened splicing seam are connected, Along the direction opposite to the first surface and the lateral splicing surface, the width of the widened splicing seam is greater than the width of the main splicing seam, and the widened splicing seam is provided with the second Seals.
The spliced structure according to claim 1 or 2, further comprising a third sealing member covering the first structural member, the second structural member and the second sealing member simultaneously.
The splicing structure according to any one of claims 1 to 3, characterized in that the first sealing member and the second sealing member are connected.
The splicing structure according to any one of claims 1 to 4, wherein the splicing area is in a ring shape, the horizontal splicing surface is in a ring shape, and the lateral splicing surface is in a ring shape.
The splicing structure according to claim 5, wherein the first sealing member is in a ring shape, and the ring-shaped first sealing member is placed on the ring-shaped horizontal splicing surface.
The splicing structure according to claim 5, characterized in that the main splicing seam in the second splicing seam is in a ring shape, and the widened splicing seam in the second splicing seam includes a shape along the first direction. The first widened joint seam and the second widened joint seam are arranged oppositely, and the first widened joint seam and the second widened joint seam are respectively provided with the second sealing member.
The spliced structure according to claim 7, wherein at least a portion of the third sealing member that simultaneously covers the first structural member, the second structural member and the second sealing member extends along the first direction. extend.
The splicing structure according to claim 3 or 8, characterized in that the third sealing member includes glue.
The splicing structure according to any one of claims 1 to 9, wherein the first sealing member includes glue.
The splicing structure according to any one of claims 1 to 10, wherein the second sealing member includes glue.
The spliced structure according to any one of claims 1 to 11, wherein the first structural member includes a middle frame, and the second structural member includes an aluminum sheet.
The spliced structure of claim 12, wherein the middle frame and the aluminum sheet form a battery compartment.
The spliced structure of claim 12, wherein the aluminum sheet is a high-modulus aluminum sheet, and the elastic modulus of the high-modulus aluminum sheet is greater than 100 Gpa.
A mobile terminal, characterized by comprising: the splicing structure according to any one of claims 1 to 14.
The mobile terminal of claim 15, further comprising: a first body and a second body, the first body and the second body being rotationally connected through a rotating shaft so as to move between the folded position and the unfolded position. Switching, the rotating shaft extends along the first direction, and the first body and/or the second body are provided with the splicing structure.
The mobile terminal of claim 16, further comprising a battery, the splicing structure surrounds a battery compartment, and the battery is accommodated in the battery compartment.