CN116436997A - Electronic equipment - Google Patents

Abstract

The application relates to the technical field of waterproofing, in particular to electronic equipment. An electronic device includes: the device comprises a middle frame provided with holes, a display screen, a circuit board, a flexible circuit board and a plugging part, wherein the display screen and the circuit board are arranged on two opposite sides of the middle frame; a line passing channel is formed between the plugging part and part of the wall of the hole and is connected with the rest walls of the hole in a sealing way; the flexible circuit board passes through the wire passing channel, and two ends of the flexible circuit board are respectively and electrically connected with the display screen and the circuit board and are in sealing connection with the channel wall surface of the wire passing channel, so that water cannot flow from one side of the middle frame to the other side through the wire passing channel. The waterproof capability of the electronic equipment is improved.

Description

Electronic equipment

Technical Field

The present application relates to a waterproof electronic device.

Background

Folding mobile phones with foldable screens are becoming more common, and various manufacturers have proposed a number of folding mobile phones with foldable screens. The connection between the screen of the folding mobile phone and the circuit board is usually realized by a flexible circuit board (Flexible Printed Circuit, abbreviated as FPC) penetrating through the middle frame, and a gap exists at the position where the FPC penetrates through the middle frame. However, the folding mobile phone has both an outer screen and an inner screen, and the inner screen is dislocated in the folding process of the folding mobile phone, so that the folding mobile phone cannot be waterproof in a traditional edge sealing manner.

Disclosure of Invention

The embodiment of the application provides electronic equipment, which can realize waterproof.

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

in a first aspect, the present application provides an electronic device, comprising: the device comprises a middle frame provided with holes, a display screen, a circuit board, a flexible circuit board and a plugging part, wherein the display screen and the circuit board are arranged on two opposite sides of the middle frame; a line passing channel is formed between the plugging part and part of the wall of the hole and is connected with the rest walls of the hole in a sealing way; the flexible circuit board passes through the wire passing channel, and two ends of the flexible circuit board are respectively and electrically connected with the display screen and the circuit board and are in sealing connection with the channel wall surface of the wire passing channel, so that water cannot flow from one side of the middle frame to the other side through the wire passing channel.

According to the embodiment of the application, the wire passing channel is in sealing connection with the flexible circuit board, and the rest parts except the wire passing channel are sealed and blocked by the blocking part, so that water cannot flow from one side of the middle frame to the other side through the wire passing channel. That is, water cannot flow between the display screen and the circuit board through the wire passing passage. The waterproof design of the hole position on the middle frame is realized, and the waterproof capability of the folding mobile phone is improved.

In one possible implementation of the first aspect, a portion of the plugging portion adjacent to a portion of a wall of the hole and forming the line passing channel is supported on the circuit board, and a remaining portion of the plugging portion is in sealing connection with a remaining wall of the hole.

In one possible implementation of the first aspect, the flexible circuit board includes a surface and another surface located on opposite sides, where one surface faces a portion of the wall of the hole and the other surface faces the plugging portion; a first sealing piece is adhered between one surface and part of the wall of the hole, and the other surface is in interference fit with the plugging part through an elastic supporting body.

In one possible implementation of the first aspect, the elastic support body is adhered to the blocking portion, and abuts against the other surface with an interference fit.

In one possible implementation of the first aspect, the elastic support is foam.

In one possible implementation of the first aspect, the first seal is a back adhesive.

In one possible implementation of the first aspect, the blocking portion is bonded to the second sealing member to achieve a sealed connection with the remaining wall of the hole.

In one possible implementation of the first aspect, the second seal is a back adhesive.

In one possible implementation of the first aspect, the wire passing channel includes a beveled portion, the beveled portion of the wire passing channel being adjacent to the display screen and being beveled in a direction toward the display screen toward the blocking portion.

In a possible implementation of the first aspect, a portion of the wall of the hole includes a hole slope, the plugging portion includes a plugging slope, and the hole slope and the plugging slope form a sloped portion.

In one possible implementation of the first aspect, the hole slope is parallel to the plugging slope.

In a possible implementation of the first aspect, the wire-passing channel further includes a straight section, and the straight section of the wire-passing channel is adjacent to the circuit board.

In a possible implementation of the first aspect, a portion of the wall of the hole further includes a straight hole surface, and the blocking portion further includes a blocking straight surface, where the straight hole surface and the blocking straight surface form a straight section of the line passing channel.

In one possible implementation of the first aspect, the hole straight surface is parallel to the plugging straight surface.

In one possible implementation of the first aspect, the blocking portion includes: the sealing device comprises a sealing plate and a sealing block, wherein one end of the sealing plate, which is adjacent to part of the hole wall of the hole, is connected with the sealing block, and the extending direction of the sealing block is consistent with the extending direction of the part of the hole wall of the hole;

a line passing channel is formed between the sealing block of the plugging part and part of the wall of the hole, and the plugging plate of the plugging part is in sealing connection with the rest of the walls of the hole.

In one possible implementation of the first aspect, the remaining walls of the hole are provided with bosses, the bosses are parallel to the plugging plate, and the bosses are in sealing connection with each other through a sealing element.

In one possible implementation of the first aspect, one end of the plugging plate is embedded in the sealing block.

In one possible implementation of the first aspect, the plugging plate includes a first portion and a second portion disposed at an obtuse angle, the first portion of the plugging plate is disposed obliquely toward the circuit board and embedded in the sealing block, and the second portion of the plugging plate is parallel to the circuit board and is bonded with a second sealing member between the remaining walls of the hole.

In one possible implementation of the first aspect, the hole has a tetragonal shape, the walls of the hole include four walls, a part of the walls are one of the walls of the hole, and the rest of the walls include three walls.

In one possible implementation of the first aspect, the second portion of the blocking portion is tetragonal.

In one possible implementation of the first aspect, the plugging plate is a hard body.

In one possible implementation of the first aspect, the hard body is metal.

In one possible implementation of the first aspect, the sealing block is formed by injection molding liquid silicone on the plugging plate.

In one possible implementation of the first aspect, two ends of the sealing block in the extending direction are in interference fit with walls of the hole.

Drawings

FIG. 1 illustrates a perspective view of a center of an electronic device, according to some embodiments of the present application;

FIG. 2 illustrates a cross-sectional view of a center frame of an electronic device in accordance with some embodiments of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 illustrates a second perspective view of a center of an electronic device, according to some embodiments of the present application;

FIG. 5 illustrates a third perspective view of a center of an electronic device, according to some embodiments of the present application;

FIG. 6 illustrates a perspective view of a center frame of an electronic device, according to some embodiments of the present application;

FIG. 7 is an enlarged view of portion B of FIG. 6;

FIG. 8 illustrates a second cross-sectional view of a middle frame of an electronic device, according to some embodiments of the present application;

fig. 9 is an enlarged view of a portion C of fig. 8;

FIG. 10 illustrates a third cross-sectional view of a center frame of an electronic device, in accordance with some embodiments of the present application;

fig. 11 is an enlarged view of a portion D in fig. 10;

FIG. 12 illustrates a partial enlarged view of a middle frame of an electronic device, according to some embodiments of the present application;

fig. 13 illustrates a perspective view of a plug portion of an electronic device, in accordance with some embodiments of the present application;

fig. 14 illustrates a second perspective view of a plug portion of an electronic device, according to some embodiments of the present application;

fig. 15 illustrates a cross-sectional view of a plug portion of an electronic device, according to some embodiments of the present application;

FIG. 16 illustrates a fifth perspective view of a center of an electronic device, according to some embodiments of the present application;

fig. 17 is an enlarged view of a portion E in fig. 16.

Detailed Description

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

The application provides electronic equipment, the flexible circuit board passes through the middle frame position department of electronic equipment and seals through shutoff portion, realizes waterproof.

The electronic device to which the technical solution of the present application may be applied includes, but is not limited to, a folding mobile phone, a folding tablet, a folding computer, a wearable device (e.g. a smart watch), a car computer, a portable multimedia player, a navigation device, a desktop computer, a television, and any device having a middle frame, a display screen and a circuit board located on opposite sides of the middle frame, and a flexible circuit board. The flexible circuit board penetrates through the middle frame and is respectively connected with the display screen and the circuit board.

For convenience of explanation, the electronic device is taken as an example of a folding mobile phone, and the electronic device of the present application is described in the following specific embodiments.

Fig. 1 shows a perspective view of a center 1 of a folding cellular phone. The folding handset comprises a centre frame 1, one of which 1 is shown in figure 1. The middle frame 1 is provided with a hole 101 for the circuit board to pass through.

The specific structure of the center 1 is not limited in this application, and referring to fig. 2, fig. 2 shows a side view of the center 1 of the folding mobile phone, for example. Fig. 3 shows an enlarged view of the portion a in fig. 2. As shown in fig. 2, the middle frame 1 of the folding mobile phone of the present application has a partition plate 10, an upper mounting cavity 11, and a lower mounting cavity 12. Along the thickness direction (shown in the Z direction in fig. 2) of the center 1, the upper mounting chamber 11 and the lower mounting chamber 12 of the center 1 are located on opposite sides of the partition 10, respectively. Referring to fig. 3, the partition plate 10 of the middle frame 1 is provided with a hole 101 through which the circuit board passes.

Illustratively, referring to fig. 4, the upper mounting cavity 11 mounts the display screen 2. Referring to fig. 5, the lower mounting cavity 12 mounts the circuit board 3. Namely, the display 2 and the circuit board 3 are mounted on opposite sides of the middle frame 1, respectively. Illustratively, an adhesive substance (e.g., a foam) may be used to attach the display 2 and the circuit board 3 to opposite sides of the spacer 10 of the center 1. However, the connection between the center 1 and the display 2 and between the circuit board 3 is not limited to an adhesive material, as long as the assembly is possible.

Referring to fig. 6 and 7, fig. 6 shows a perspective view of the middle frame 1 of the folding cellular phone in a cross-sectional view, and fig. 7 shows an enlarged view of a portion B in fig. 6. The flexible circuit board 4 passes through the holes 101 on the partition board 10 of the middle frame 1, and two ends of the flexible circuit board 4 are respectively electrically connected with the display screen 2 and the circuit board 3. As shown in fig. 7, a gap exists at a position where the flexible circuit board 4 passes through the hole 101 of the middle frame 1, and the inner screen of the folding mobile phone is dislocated in the process of folding the folding mobile phone, so that water leakage is possible at the gap.

Therefore, a waterproof design is required. The hole 101 of the middle frame 1 for the flexible circuit board 4 to pass through is a non-circular hole, and the shape is more special. The flexible circuit board 4 is flexible and not strong enough to support the complete attachment of the waterproof material and cannot be waterproof in the conventional edge sealing manner.

For this reason, the present application proposes a waterproof solution to cope with perforation of a flexible wiring board. In this scheme, waterproof through setting up shutoff portion in the hole department of the baffle of center for folding mobile phone's waterproof ability obtains promoting.

The structure of the blocking portion and a specific waterproofing scheme are described in detail below with reference to the accompanying drawings.

In some possible embodiments, referring to fig. 8 and 9, a plugging portion 5 is disposed at a position of a hole 101 on a partition board 10 of a middle frame 1 of a folding mobile phone of the present application, and a line passing channel 10111 is formed between the plugging portion 5 and a part of a hole wall 1011 of the hole 101 and is in sealing connection with the rest of hole walls 1012 of the hole 101. That is, after the hole 101 of the middle frame 1 is provided with the blocking portion 5, the remaining portion of the hole 101 is sealed and blocked by the blocking portion 5 except the wire passage 10111. Also, the plugging portion 5 plugs a part of the hole 101, and the part of the hole 101 not plugged by the plugging portion 5 is the above-mentioned line-through passage 10111, and the line-through passage 10111 is provided for the flexible circuit board 4 to pass through.

Referring to fig. 10 to 12, fig. 10 shows a side view of the center 1, fig. 11 shows an enlarged view of a portion D in fig. 10, and fig. 12 is a schematic view of a structure in a perspective view of fig. 11.

As shown in fig. 11 and 12, after the flexible wiring board 4 passes through the wire passage 10111 (the wire passage 10111 is not shown in fig. 11 and 12), both ends of the flexible wiring board 4 are electrically connected to the display screen 2 and the circuit board 3 on opposite sides of the partition board 10, respectively, and are hermetically connected to the passage wall surface of the wire passage 10111. That is, the flexible wiring board 4 is hermetically connected to the wall surface of the hole wall 1011 and the wall surface of the portion of the plugging portion 5 of the hole 101 forming the line passage 10111, respectively, as shown in fig. 9. The specific manner of sealing will be described in detail later.

The wire passage 10111 is in sealing connection with the flexible circuit board 4, and the rest of the hole 101 except the wire passage 10111 is sealed and blocked by the blocking part 5, so that water cannot flow from one side of the middle frame 1 to the other side through the wire passage 10111. For example, water cannot flow from one side to the other side of the partition 10 of the center 1 through the wire passage 10111. That is, water cannot flow between the display screen 2 and the circuit board 3 through the wire passage 10111. The waterproof design of the position of the hole 101 on the partition board 10 of the middle frame 1 is realized, and the waterproof capability of the folding mobile phone is improved.

The specific structure of the plugging portion 5 is not limited, and the plugging of the hole 101 on the partition board 10 of the middle frame 1 can be realized, and the structure of forming the wire passing channel 10111 with the hole wall 1011 of the hole 101 on the partition board 10 of the middle frame 1 belongs to the protection scope of the application.

Illustratively, the holes 101 on the partition board 10 of the middle frame 1 through which the flexible circuit board 4 passes are square-shaped. The walls of the hole 101 comprise four walls. The partial walls 1011 are one of the walls of the hole 101, and the remaining walls 1012 include the remaining three walls. One of the hole walls (the above-described partial hole wall 1011) is a hole wall to which the flexible wiring board 4 is attached, and the remaining three hole walls are hole walls to which the flexible wiring board 4 is not attached. However, the number of the walls of the holes 101 in the present application is not limited to four, and the number of the walls of the holes 101 is five, six, etc. The following will exemplify that the hole 101 has four walls.

Accordingly, the blocking portion 5 has a tetragonal shape as a whole. Referring to fig. 13 and 14, the occlusion part 5 of the present application includes: a closure plate 50 and a sealing block 51. One end of the closure plate 50 of the present application adjacent to a portion of the bore wall 1011 of the bore 101 is connected to the sealing block 51. That is, the portion of the closure plate 50 adjacent the aperture wall 1011 of the aperture 101. Illustratively, referring to fig. 13 to 14, the extending direction of the sealing block 51 described above (shown in the X direction in fig. 13 and 14) coincides with the extending direction of the partial hole wall 1011 of the hole 101. As shown in fig. 9, the sealing block 51 of the plugging portion 5 is supported by the circuit board 3, and the line passage 10111 is formed between the sealing block 51 and a part of the wall 1011 of the hole 101, and the extending direction of the line passage 10111 is identical to the extending direction of the sealing block 51. The sealing block 51 is supported by the circuit board 3, and can provide a supporting force for sealing a seal (a back adhesive described later) of the flexible wiring board 4.

In the present application, the plugging plate 50 is a metal steel sheet, and the sealing block 51 is liquid injection molding silica gel. The sealing block 51 is formed by liquid silicone injection molding on the blocking plate 50. Namely, the liquid injection molding silica gel and the steel sheet are directly injected together. As shown in fig. 15, the blocking plate 50 is embedded in the sealing block 51. However, the specific material of the plugging plate 50 is not specifically described herein, for example, the plugging plate 50 is a hard body made of other metals. The shape of the plugging plate 50 and the shape of the sealing block 51 are not limited to this, and the structure capable of plugging the hole 101 of the center 1 falls within the scope of protection of the present application. In some possible embodiments, the sealing plate 50 and the sealing block 51 may be integrally formed of the same material (e.g., silicone).

Illustratively, the flexible wiring board 4 is matched in size in the extending direction of the sealing block 51 and the extending direction of the wire passing passage 10111 to facilitate sealing and waterproofing. The flexible circuit board 4 passes through the line-passing channel 10111 and is respectively in sealing connection with part of the hole wall 1011 and the sealing block 51 of the hole 101, and the sealing plate 50 of the sealing part 5 is in sealing connection with the rest of the hole walls 1012 (the rest three hole walls) of the hole 101. That is, the side of the plugging portion 5 on which the sealing block 51 is provided (flexible wiring board side) is hermetically connected to the flexible wiring board 4, and the side of the plugging portion 5 on which the plugging plate 50 is provided (flexible wiring board-free side) is hermetically connected to the remaining walls 1012 (remaining three walls) of the hole 101.

Illustratively, referring to fig. 15, the above-described closure plate 50 includes a first portion 501 and a second portion 502 disposed at an obtuse angle. Referring to fig. 11 and 12, the first portion 501 of the plugging plate 50 is disposed obliquely toward the circuit board 3 and is embedded in the sealing block 51; the second portion 502 of the blocking plate 50 is parallel to the circuit board 3. Illustratively, the second portion 502 of the closure plate 50 is tetragonal in shape to close off a portion of the aperture 101 in the partition 10 of the mullion 1. As shown in connection with fig. 13, the second portion 502 of the closure plate 50 includes a first end 5021, a second end 5022, and a third end 5023 that are connected in sequence. The first end 5021, the second end 5022 and the third end 5023 of the second portion 502 of the closure plate 50 are in one-to-one correspondence with the remaining walls 1012 (the remaining three walls) of the hole 101.

Wherein the first end 5021 and the third end 5023 of the second portion 502 of the blanking plate 50 are disposed at intervals along the length direction (X direction in fig. 13) of the blanking plate 50 and extend along the width direction (Y direction in fig. 13) of the blanking plate 50, respectively. The second end 5022 of the second portion 502 of the blanking plate 50 extends along the length direction of the blanking plate 50, is disposed opposite the first portion 501 of the blanking plate 50 along the width direction of the blanking plate 50, and is connected to the first end 5021 and the third end 5023 of the second portion 502 of the blanking plate 50, respectively.

With continued reference to fig. 14, in combination with fig. 16 and 17, fig. 16 shows a perspective view of the middle frame 1 from a cross-sectional view, and fig. 17 shows an enlarged view of portion E of fig. 16. The side of the sealing block 51 facing the part of the hole wall 1011 of the hole 101 is provided with an elastic supporting body 54, and the elastic supporting body 54 is adhered to the side of the sealing block 51 facing the part of the hole wall 1011 of the hole 101 through a first back adhesive 55. The elastic support 54 is, for example, foam. The second back glue 52 is disposed on a side of the second portion 502 of the plugging plate 50 facing the remaining wall 1012 of the hole 101, and specifically, the first end 5021, the second end 5022 and the third end 5023 of the plugging plate 50 facing the remaining wall 1012 of the hole 101 are respectively disposed with the second back glue 52. Illustratively, the second adhesive-backed sheet 52 and the sealing block 51 enclose a quadrangular frame body with an open upper end and a closed bottom, so as to seal a part of the hole wall 1011 of the hole 101.

The sealing block 51 and the flexible circuit board 4 are sealed and waterproof, that is, the sealing block 5 is waterproof on the side with the flexible circuit board.

With continued reference to fig. 11, the flexible wiring board 4 includes first and second surfaces on opposite sides, the first surface of the flexible wiring board 4 being disposed facing a portion of the hole wall 1011 of the hole 101, and the second surface of the flexible wiring board 4 being disposed facing the sealing block 51 of the plugging portion 5. A third back glue 53 is adhered between the first surface of the flexible circuit board 4 and a part of the hole wall 1011 of the hole 101, that is, the first surface of the flexible circuit board 4 is adhered between the part of the hole wall 1011 of the hole 101 through the third back glue 53. The sealing element between the first surface of the flexible circuit board 4 and the part of the hole wall 1011 of the hole 101 is not limited to back glue, and can be other sealing elements.

The second surface of the flexible circuit is in interference fit with the plugging portion 5 via the elastic support body 54. The sealing block 51 supports the foam while the circuit board 3 supports the sealing block 51, thereby providing a force to press the foam and the flexible wiring board 4, and the flexible wiring board 4 is pressed against a part of the hole wall 1011 of the hole 101 of the center 1 by the foam. The gap is compressed, so that the sealing part 5 is waterproof on the side with the flexible circuit board 4.

The elastic support body 54 is adhered to the sealing block 51 through the first back adhesive 55, and abuts against the second surface of the flexible circuit board 4 to be in interference fit. The elastic support body 54 may be bonded to the blocking portion 5 by another structure. In some possible embodiments, the second surface of the flexible circuit board 4 is adhered with an elastic support 54 (e.g., foam) by back-adhesive, and the elastic support 54 is in an interference fit with the sealing block 51.

The elastic support 54 is not limited to foam, and may be other structures such as sponge.

In some possible embodiments, the above-mentioned wire passage 10111 includes a sloped portion, and the sloped portion of the wire passage 10111 is adjacent to the display screen 2 and is sloped in a direction facing the plugging portion 5 toward the display screen 2. That is, the shape of a portion of the wire passage 10111 adjacent to the display screen 2 is contoured to the shape of the curved flexible wiring board 4. This facilitates the flexible wiring board 4 to pass through the inclined section portion of the wire passage 10111 after bending.

Illustratively, referring to fig. 11 and 17, a portion of the bore wall 1011 of the bore 101 includes a bore chamfer 10112, the seal block 51 includes a seal chamfer, and the bore chamfer 10112 and the seal chamfer form a beveled portion of the line passage 10111. Illustratively, the bore ramp 10112 is parallel to the plugging ramp. The bent flexible circuit board 4 is parallel to the hole inclined plane 10112 and the plugging inclined plane at the part corresponding to the inclined section part of the wire passing channel 10111, so that the flexible circuit board 4 can pass through the wire passing channel 10111.

In some possible embodiments, referring to fig. 9 and 17, the above-mentioned wire passage 10111 further includes a straight portion extending in the thickness direction of the middle frame 1. Illustratively, the partial bore wall 1011 of the bore 101 further includes a bore straight face 10113, and the sealing block 51 includes a blocking straight face, the bore straight face 10113 and the blocking straight face forming a straight section of the through-line channel 10111. Illustratively, the bore straight face 10113 is parallel to the plugging straight face. The portions of the flexible wiring board 4 after bending, which correspond to the straight sections of the wiring passages 10111, are parallel to the hole straight face 10113 and the blocking straight face, respectively. Equivalently, one end of the flexible circuit board 4 is electrically connected with the display screen 2, and sequentially passes through the inclined section part and the straight section part of the wire passing channel 10111 and is electrically connected with the circuit board 3.

The sealing and waterproofing mode of the plugging sheet 50 and the remaining walls 1012 of the hole 101, that is, the waterproofing of the plugging portion 5 on the side without the flexible wiring board, will be described.

Referring to fig. 12 and 15, the second portion 502 of the plugging plate 50 of the plugging portion 5 is adhered to the remaining hole walls 1012 of the hole 101 of the middle frame 1 (the three hole walls of the hole 101 except the above-mentioned partial hole wall 1011) by the second back adhesive 52 to achieve a sealed connection. Illustratively, the remaining walls 1012 of the hole 101 of the middle frame 1 include a first wall, a second wall, and a third wall. The first hole wall corresponds to the first end 5021 of the plugging plate 50 shown in fig. 13, and is bonded by the second back adhesive 52; the second hole wall corresponds to the second end 5022 of the plugging plate 50 shown in fig. 13, and is bonded by the second back adhesive 52; the third hole wall corresponds to the third end 5023 of the plugging plate 50 shown in fig. 13, and is bonded by the second back adhesive 52. The second back glue 52 and the sealing block 51 enclose a closed frame body, the plugging plate 50 and the rest hole walls 1012 of the holes 101 of the middle frame 1, and then the closed cavity is formed after the sealing block is bonded together, so that the gap is eliminated, and the waterproof effect is realized.

The seal between the plugging plate 50 and the remaining walls 1012 of the hole 101 is not limited to a back adhesive, and may be other seals.

In some possible embodiments, referring to fig. 12 and 17, the remaining walls 1012 of the hole 101 are provided with bosses parallel to the plugging plate 50 and in one-to-one correspondence with the first end 5021, the second end 5022 and the third end 5023 of the plugging plate 50 shown in fig. 13, respectively. The boss and the plugging plate 50 are bonded together by a second back adhesive 52 for sealing connection. After the boss is arranged, the plugging plate 50 is adhered to the rest hole walls 1012 of the middle frame 1 through the second back glue 52. That is, it is convenient to fix the closure plate 50 of the closure portion 5 to the center 1.

Thus, the plugging portion 5 of the present application realizes waterproofing both on the flexible wiring board side and on the side without the flexible wiring board and on the wall of the hole 101 on the partition board 10 of the center 1. The waterproof of the plugging part 5 on the side with the flexible circuit board mainly relies on foam to press the flexible circuit board 4 on the middle frame 1, and the gap at the place is compressed, so that the waterproof at the place is realized. The side of the plugging part 5, which is provided with the flexible circuit board, is used for fixing the middle frame 1 and the plugging plate 50 in a back adhesive mode, and meanwhile, gaps at the position are eliminated, so that the waterproof effect at the position is realized. The waterproof ability of the entire hole 101 of the partition plate 10 of the center 1 is improved.

In some possible embodiments, at the position where the plugging portion 5 has the flexible circuit board side connected to the wall of the hole 101 at both sides (i.e., at the corner of the hole 101), both ends of the sealing block 51 in the extending direction are interference fit with the wall of the hole 101. I.e. the sealing here is achieved by deformation of the sealing block 51 (liquid injection moulded silicone).

Illustratively, referring to fig. 13, both ends of the sealing block 51 in the extending direction have concave-convex portions 511, respectively; referring to fig. 17, the middle frame 1 has projections and depressions 1015 at corners of the walls of the two sides of the hole 101. The outer shape of the concave-convex portions 511 at both ends of the extending direction of the seal block 51 is fitted with the outer shape of the concave-convex portions 1015 at the corners of the wall of the hole 101 at both sides of the hole of the middle frame 1 to achieve concave-convex fitting. Illustratively, the concave-convex portion 511 of the sealing block 51 is slightly larger in size, and is in interference fit with the concave-convex portion 1015 on the wall of the hole 101 of the middle frame 1, thereby realizing waterproofing of corners therein.

That is, the blocking portion 5 of the present application can realize waterproofing in three aspects of the hole 101 of the center 1.

On the one hand, part of the hole wall 1011 of the hole 101 is waterproof on the flexible circuit board side, the flexible circuit board 4 is pressed on the middle frame 1 by foam on the sealing block 51, and the gap at the position is compressed, so that the waterproof at the position is realized.

On the other hand, the rest hole walls 1012 (three hole walls) of the hole 101 are waterproof on the side without the flexible circuit board, the middle frame 1 and the plugging plate 50 are fixed in a back glue mode, gaps at the positions are eliminated, and waterproof on the rest hole walls 1012 (three hole walls) of the hole 101 is achieved.

Finally, at the positions where the two ends of the extending direction of the sealing block 51 are connected with the wall of the two sides of the hole 101, the two ends of the extending direction of the sealing block 51 are in interference fit with the wall of the hole 101, so that the sealing is realized.

To sum up, this application has set up the shutoff portion through the hole department at the center, and the shutoff portion is for the combination form of gum, bubble cotton, steel sheet and liquid injection molding silica gel, realizes the control to the clearance of flexible line way board and center to realized folding mobile phone inner screen department waterproof, made folding mobile phone's waterproof ability obtain promoting.

Claims (24)

1. An electronic device, comprising: the device comprises a middle frame provided with holes, a display screen, a circuit board, a flexible circuit board and a plugging part, wherein the display screen and the circuit board are arranged on two opposite sides of the middle frame;

a line passing channel is formed between the plugging part and part of the wall of the hole and is in sealing connection with the rest walls of the hole;

the flexible circuit board passes through the wire passing channel, and two ends of the flexible circuit board are respectively and electrically connected with the display screen and the circuit board and are in sealing connection with the channel wall surface of the wire passing channel.

2. The electronic device of claim 1, wherein a portion of the blocking portion adjacent to the portion of the wall of the hole and forming the wire-passing channel is supported on the circuit board, and a remaining portion of the blocking portion is sealingly connected to the remaining wall of the hole.

3. The electronic device of claim 1 or 2, wherein the flexible circuit board includes a surface facing the partial wall of the hole and another surface facing the plugging portion on opposite sides;

and a first sealing piece is adhered between one surface and part of the hole wall of the hole, and the other surface is in interference fit with the plugging part through an elastic support body.

4. The electronic device of claim 3, wherein the resilient support is bonded to the plug portion against the other surface with an interference fit.

5. The electronic device of claim 3 or 4, wherein the elastic support is foam.

6. The electronic device of any of claims 3-5, wherein the first seal is a back adhesive.

7. The electronic device of any one of claims 1-6, wherein the plug portion is bonded to the remaining walls of the hole with a second seal to achieve a sealed connection.

8. The electronic device of claim 7, wherein the second seal is a back adhesive.

9. The electronic device of any one of claims 1-8, wherein the wire-passing channel includes a beveled portion, the beveled portion of the wire-passing channel being adjacent the display screen and sloping in a direction toward the display screen facing the plug.

10. The electronic device of claim 9, wherein the portion of the hole wall of the hole comprises a hole slope, the plug comprises a plug slope, and the hole slope and the plug slope form the sloped portion.

11. The electronic device of claim 10, wherein the hole slope is parallel to the plugging slope.

12. The electronic device of any of claims 1-10, wherein the wire-passing channel further comprises a straight section portion, the straight section portion of the wire-passing channel being adjacent to the circuit board.

13. The electronic device of claim 12, wherein a portion of the wall of the hole further comprises a hole straight surface, the blocking portion further comprises a blocking straight surface, and the hole straight surface and the blocking straight surface form a straight section of the via.

14. The electronic device of claim 13, wherein the aperture straight surface is parallel to the plugging straight surface.

15. The electronic device of any one of claims 1-14, wherein the plug portion comprises: the sealing device comprises a sealing plate and a sealing block, wherein one end of the sealing plate adjacent to the part of the hole wall of the hole is connected with the sealing block, and the extending direction of the sealing block is consistent with the extending direction of the part of the hole wall of the hole;

the sealing block of the plugging part and the part of the hole wall of the hole form the line passing channel, and the plugging plate of the plugging part is in sealing connection with the rest of the hole walls of the hole.

16. The electronic device of claim 15, wherein the remaining walls of the hole are provided with bosses parallel to the plugging plate and sealingly connected by a seal.

17. The electronic device of claim 15 or 16, wherein the one end of the sealing plate is embedded within the sealing block.

18. The electronic device of claim 17, wherein the blocking plate comprises a first portion and a second portion disposed at an obtuse angle, the first portion of the blocking plate is disposed obliquely toward the circuit board and embedded in the sealing block, and the second portion of the blocking plate is parallel to the circuit board and bonded with a second seal between the remaining walls of the hole.

19. The electronic device of claim 18, wherein the hole is tetragonal, the walls of the hole comprise four walls, the portion of the walls is one of the walls of the hole, and the remaining walls comprise the remaining three walls.

20. The electronic device of claim 18 or 19, wherein the second portion of the plug is tetragonal.

21. The electronic device of any one of claims 15-20, wherein the occluding plate is a hard body.

22. The electronic device of claim 21, wherein the hard body is a metal.

23. The electronic device of any one of claims 15 to 22, wherein the sealing block is formed by liquid silicone injection molding on the plugging plate.

24. The electronic device of any one of claims 15 to 23, wherein both ends of the sealing block in the extending direction are interference fit with a wall of the hole.

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