CN212034157U

CN212034157U - Waterproof sealing structure and electronic terminal

Info

Publication number: CN212034157U
Application number: CN202020893113.XU
Authority: CN
Inventors: 李峰; 刘钧; 黄玉光; 刘璐
Original assignee: Wuxi Ruiqin Technology Co Ltd
Current assignee: Wuxi Ruiqin Technology Co Ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-11-27
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a waterproof construction technical field specifically discloses a waterproof sealing structure and electronic terminal, waterproof sealing structure includes: the fixing piece is provided with a mounting groove; the sealing element is positioned on the inner side of the fixing piece and surrounds the notch of the mounting groove; the device comprises an acquisition device main body, a connection circuit board and a reinforcing plate, wherein the acquisition device main body comprises an information acquisition module, the connection circuit board and the reinforcing plate; the information acquisition module is positioned in the mounting groove, one end of the connecting circuit board is electrically connected with the information acquisition module, the other end of the connecting circuit board penetrates through the reinforcing plate to be electrically connected with the main board, and the part of the connecting circuit board penetrating through the reinforcing plate is hermetically connected with the reinforcing plate; the reinforcing plate is positioned on one side, far away from the fixing piece, of the sealing piece and used for pressing the sealing piece with the fixing piece. The utility model provides a waterproof sealing structure and electronic terminal has higher sealing performance.

Description

Waterproof sealing structure and electronic terminal

Technical Field

The utility model relates to a waterproof construction technical field especially relates to a waterproof sealing structure and electronic terminal.

Background

Many mobile phones on the market are provided with fingerprint acquisition devices. Referring to fig. 1 to 3, the fingerprint acquisition device 1 is usually installed in a key slot 201 of the mobile phone housing 2, and the fingerprint acquisition device 1 is sequentially provided with a fingerprint sensing module 101, a flexible circuit board 102 for electrically connecting the fingerprint sensing module 101 and a mobile phone motherboard, and a reinforcing steel sheet 103 for supporting from outside to inside. For convenient assembly, the fingerprint acquisition device 1 and the key slot 201 are usually in clearance fit, that is, a fit clearance 202 is often arranged between the fingerprint acquisition device 1 and the key slot 201.

However, during actual use, moisture outside the mobile phone easily enters the inside of the mobile phone through the fitting gap 202, which greatly reduces the sealing performance of the mobile phone. Therefore, it is necessary to improve the mounting structure of the existing fingerprint acquisition device to solve the problem of poor sealing performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof sealing structure and electronic terminal has higher sealing performance.

To achieve the above object, in one aspect, the present invention provides a waterproof sealing structure, including:

the fixing piece is provided with a mounting groove;

the sealing element is positioned on the inner side of the fixing piece and surrounds the notch of the mounting groove;

the device comprises an acquisition device main body, a connection circuit board and a reinforcing plate, wherein the acquisition device main body comprises an information acquisition module, the connection circuit board and the reinforcing plate; the information acquisition module is positioned in the mounting groove, one end of the connecting circuit board is electrically connected with the information acquisition module, the other end of the connecting circuit board penetrates through the reinforcing plate to be electrically connected with the main board, and the part of the connecting circuit board penetrating through the reinforcing plate is hermetically connected with the reinforcing plate; the reinforcing plate is positioned on one side, far away from the fixing piece, of the sealing piece and used for pressing the sealing piece with the fixing piece.

Preferably, the reinforcing plate is provided with a through groove, the connecting circuit board penetrates through the through groove, and a sealing filler is filled between the connecting circuit board and the wall of the through groove.

Preferably, the fixing piece is further provided with a limiting baffle, and the limiting baffle is located on one side, away from the sealing element, of the reinforcing plate and used for limiting the movement of the reinforcing plate towards the direction away from the sealing element.

Preferably, a compression spring is arranged between the limiting baffle and the reinforcing plate.

Preferably, the sealing element is a rubber element, a silica gel element or waterproof foam.

Preferably, one side of the sealing member close to the reinforcing plate is bonded to the reinforcing plate.

Preferably, one side of the fixing piece, which is close to the sealing piece, is provided with a positioning groove with a shape matched with that of the sealing piece, and the sealing piece is inserted into the positioning groove.

Preferably, the information acquisition module is a fingerprint sensing module, a face sensing module, an iris sensing module or a voice acquisition module.

On the other hand, the utility model provides an electronic terminal, including mainboard and any kind of waterproof sealing structure of above-mentioned, the mainboard with the connecting circuit board electricity is connected.

The beneficial effects of the utility model reside in that: the utility model provides a waterproof sealing structure and electronic terminal, the mounting groove is close to the inboard notch periphery of mounting and is enclosed by the sealing member, sealing connection between mounting and the stiffening plate can be realized to the sealing member, even if so the outside steam of electronic terminal also can get into in the mounting groove and also can be because of being blocked and can't get into electronic terminal through the clearance between mounting and the stiffening plate inside by the sealing member, and then realized the sealing connection between collection system main part and the mounting, improved electronic terminal's sealing performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of an external side of a fingerprint acquisition device provided in the prior art;

FIG. 2 is an inside schematic view of a fingerprint acquisition device provided in the prior art;

FIG. 3 is a schematic cross-sectional view of a fingerprint acquisition device provided in the prior art;

fig. 4 is a schematic sectional view of a waterproof and sealing structure provided by an embodiment;

fig. 5 is an inside schematic view of a waterproof sealing structure provided by an embodiment;

fig. 6 is a schematic structural view of a sealing member and a reinforcing plate according to an embodiment.

In the figure:

1. a fingerprint acquisition device; 101. a fingerprint sensing module; 102. a flexible circuit board; 103. reinforcing steel sheets;

2. a handset housing; 201. a keyway; 202. fitting gaps;

3. a fixing member; 301. mounting grooves; 302. a limit baffle;

4. a seal member;

5. a collection device body; 501. an information acquisition module; 502. connecting the circuit board; 503. a reinforcing plate; 5031. a through groove; 504. and (5) sealing and filling.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment provides an electronic terminal which comprises a main board and a waterproof sealing structure. Referring to fig. 4 and 5, the waterproof sealing structure includes a fixing member 3, a sealing member 4, and an acquisition device main body 5. The fixing member 3 is provided with a mounting groove 301. The sealing member 4 is positioned inside the fixing member 3 and surrounds the notch of the mounting groove 301. The acquisition device main body 5 comprises an information acquisition module 501, a connecting circuit board 502 and a reinforcing plate 503; the information acquisition module 501 is located in the mounting groove 301, one end of the connecting circuit board 502 is electrically connected with the information acquisition module 501, the other end of the connecting circuit board runs through the reinforcing plate 503 to be electrically connected with the main board, and the part of the connecting circuit board 502 running through the reinforcing plate 503 is hermetically connected with the reinforcing plate 503. The reinforcing plate 503 is located on a side of the sealing member 4 away from the fixing member 3, and is used for pressing the sealing member 4 with the fixing member 3.

It should be noted that the electronic terminal described in this embodiment may be a mobile phone, a notebook, a tablet computer, a code scanning device, or a POS. The fixing member 3 may be a side frame, a front case, a rear cover, or the like of the electronic terminal. The information acquisition module 501 may be a fingerprint sensing module, a face sensing module, an iris sensing module, or a voice acquisition module. The connection circuit board 502 is preferably a flexible circuit board.

Optionally, the information acquisition module 501 is bonded to the reinforcing plate 503 through a back adhesive.

In the waterproof sealing structure provided by the embodiment, the periphery of the notch of the mounting groove 301 close to the inner side of the fixing piece 3 is surrounded by the sealing piece 4, and the sealing piece 4 can realize the sealing connection between the fixing piece 3 and the reinforcing plate 503, so that the water vapor outside the electronic terminal can enter the mounting groove 301 and can not enter the electronic terminal through the gap between the fixing piece 3 and the reinforcing plate 503 due to the blocking of the sealing piece 4, thereby realizing the sealing connection between the acquisition device main body 5 and the fixing piece 3 and improving the sealing performance of the electronic terminal.

It should be noted that the information acquisition module 501 and the connection circuit board 502 are waterproof, and have waterproof functions, and the joint between the two modules can be waterproof by using a waterproof plug or by dispensing waterproof glue.

Referring to fig. 6, in the embodiment, the reinforcing plate 503 is made of a steel plate and has a through groove 5031, the connecting circuit board 502 penetrates through the through groove 5031, and a sealing filler 504 is filled between the connecting circuit board 502 and the groove wall of the through groove 5031. Optionally, the sealing filler 504 is waterproof foam or waterproof viscose. The sealing filler 504 is mainly used to close the gap between the connection circuit board 502 and the groove wall of the through groove 5031 to prevent water vapor from entering the fixing member 3 through the gap.

In some other embodiments, the reinforcing plate 503 may be made of rigid plastic, and the connecting circuit board 502 is connected to the reinforcing plate 503 by injection molding, that is, the connecting circuit board 502 penetrates through a mold cavity of the reinforcing plate 503, and then the rigid plastic is poured into the mold cavity, so that the reinforcing plate 503 connected to the connecting circuit board 502 in a sealing manner is obtained after the rigid plastic is cured.

The fixing member 3 is further provided with a limit baffle 302. The limit baffle 302 is located on a side of the stiffening plate 503 away from the sealing element 4, and is used for limiting the stiffening plate 503 to move towards a direction away from the sealing element 4. Specifically, the sum of the dimension of the sealing member 4 in the thickness direction of the reinforcing plate 503 in an uncompressed state and the thickness of the reinforcing plate 503 should be slightly smaller than the distance from the surface of the fixing member 3 to which the sealing member 4 is attached to the surface of the limit stop 302 to which the reinforcing plate 503 is attached. This makes it possible to keep the reinforcing plate 503 pressed against the sealing member 4, and the sealing member 4 is always in a compressed state, thereby further improving the sealing performance between the reinforcing plate 503 and the fixing member 3.

Specifically, a limit baffle 302 may be disposed at each of two opposite corners of the stiffening plate 503, or a limit baffle 302 may be disposed at each of four corners of the stiffening plate 503.

Optionally, a compression spring is disposed between the limit baffle 302 and the reinforcing plate 503. Along with the lapse of time, sealing member 4 receives the extrusion of stiffening plate 503 for a long time, and deformation recovery ability descends, and the sealing performance between mounting 3 and the stiffening plate 503 also can descend, sets up compression spring after, compression spring can continuously make stiffening plate 503 compress tightly sealing member 4 towards the direction that is close to mounting 3, effectively eliminates the influence that sealing member 4 ages and brings.

In this embodiment, the sealing member 4 is a rubber member, a silicone member, or a waterproof foam. One side of the sealing member 4 close to the reinforcing plate 503 is bonded to the reinforcing plate 503 through waterproof glue or foam viscose glue or the like. Optionally, when the reinforcing plate 503 is made of hard plastic, the reinforcing plate 503 and the sealing element 4 may be hermetically connected by a two-color injection molding process.

Optionally, a positioning groove with a shape matched with that of the sealing element 4 is formed in one side, close to the sealing element 4, of the fixing element 3, and the sealing element 4 is inserted into the positioning groove. Specifically, the positioning groove can provide a positioning basis for the sealing element 4, and assembly is convenient to achieve.

The waterproof sealing structure and the electronic terminal provided by the embodiment are suitable for an application scene of waterproof sealing on clearance fit electrical elements, the sealing element is arranged between the reinforcing plate and the fixing part, the connecting circuit board penetrates through the reinforcing plate, then the connecting circuit board penetrates through the position of the reinforcing plate to be sealed, the electric connection between the acquisition device main body and the main board can be realized, the sealing of the inner side of the fixing part can be realized, and the sealing performance of the electronic terminal is further improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A waterproof and sealing structure, comprising:

the fixing piece is provided with a mounting groove;

2. The waterproof sealing structure according to claim 1, wherein the reinforcing plate is provided with a through groove, the connecting circuit board penetrates through the through groove, and a sealing filler is filled between the connecting circuit board and the groove wall of the through groove.

3. The waterproof sealing structure according to claim 1, wherein the fixing member is further provided with a limit baffle, and the limit baffle is located on a side of the reinforcing plate away from the sealing member and used for limiting the movement of the reinforcing plate in a direction away from the sealing member.

4. The waterproof sealing structure according to claim 3, wherein a compression spring is provided between the limit baffle and the reinforcing plate.

5. The waterproof sealing structure according to claim 1, wherein said sealing member is a rubber member, a silicone member, or waterproof foam.

6. The waterproof sealing structure according to claim 5, wherein a side of said sealing member adjacent to said reinforcing plate is bonded to said reinforcing plate.

7. The waterproof sealing structure according to claim 1, wherein a side of said fixing member adjacent to said sealing member is provided with a positioning groove having a shape matching with that of said sealing member, and said sealing member is inserted into said positioning groove.

8. The waterproof sealing structure according to claim 1, wherein the information acquisition module is a fingerprint sensing module, a human face sensing module, an iris sensing module or a voice acquisition module.

9. An electronic terminal comprising a main board and the waterproof and sealing structure of any one of claims 1 to 8, wherein the main board is electrically connected to a connection circuit board.