CN217159766U

CN217159766U - Side fingerprint device and mobile terminal

Info

Publication number: CN217159766U
Application number: CN202122457589.6U
Authority: CN
Inventors: 石新兵
Original assignee: Kunshanqiu Titanium Biometric Technology Co ltd
Current assignee: Kunshanqiu Titanium Biometric Technology Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-08-09
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses a side fingerprint device, including shell, safety cover and fingerprint module, the side of shell is equipped with the through-hole, and the fingerprint module is installed in the shell and is set up in above-mentioned through-hole department, and fingerprint module top is located to the safety cover knot, and the safety cover is connected with the through-hole cooperation. The utility model discloses a side fingerprint device can prevent that liquid from getting into inside the fingerprint module, avoids the fingerprint module to become invalid. The utility model discloses still relate to a mobile terminal.

Description

Side fingerprint device and mobile terminal

Technical Field

The utility model relates to an electronic equipment technical field, in particular to side fingerprint device and mobile terminal.

Background

With the rapid development of the mobile internet era, the integrated functionality of the mobile phone is more complete, nowadays, the size of the screen has also developed to a critical point, in order to pursue a better visual effect, a comprehensive screen comes with the move, the arrival of the comprehensive screen inevitably causes the innovation and the update of the fingerprint identification technology, and one of the design schemes is to place the fingerprint at the side of the mobile phone to make a side fingerprint scheme, so the side fingerprint has become a trend, and the better use experience and the higher waterproof performance of the side fingerprint become urgent needs for the side fingerprint.

Fig. 1 is current mobile terminal's sectional structure schematic diagram, as shown in fig. 1, current mobile terminal includes shell 21, fingerprint protective layer 22 and fingerprint module 23, shell 21 is equipped with the mounting hole, fingerprint module 23 is located in the mounting hole, fingerprint protective layer 22 fixed connection is in fingerprint module 23, because there is the fit-up gap behind fingerprint module 23 and the assembly of shell 21, fingerprint module 23 is protected to the mode of current bottom and fit-up gap filling glue through at fingerprint module 23, but because glue is hardly filled up the fit-up gap, thereby lead to the partial fit-up gap that does not fill up still to have the risk that liquid got into, and then lead to fingerprint module 23 to become invalid.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a side fingerprint device can prevent that liquid from getting into inside the fingerprint module, avoids the fingerprint module to become invalid.

The utility model provides a side fingerprint device, includes shell, safety cover and fingerprint module, the side of shell is equipped with the through-hole, and the fingerprint module of institute installs in the shell and sets up in above-mentioned through-hole department, the safety cover is detained and is located fingerprint module top, just the safety cover with the through-hole cooperation is connected.

The utility model discloses in, above-mentioned fingerprint module includes fingerprint chip and circuit substrate, fingerprint chip electric connection in circuit substrate, the safety cover is equipped with the mounting groove, fingerprint chip installs in the mounting groove, circuit substrate locate outside the mounting groove of safety cover.

The utility model discloses in, above-mentioned safety cover with circuit substrate fixed connection, or the safety cover with shell fixed connection.

The utility model discloses in, the open end of above-mentioned safety cover with be connected with first sealed glue between the circuit substrate.

The utility model discloses in, above-mentioned safety cover includes the arc touching face, the arc touching face set up in outside the through-hole, the arc touching face is used for awakening up the fingerprint module.

In the present invention, the protective cover further comprises a touch portion and a connecting portion, wherein the connecting portion is connected to the touch portion; the touch part is arranged outside the through hole, and the arc touch surface is arranged on the touch part; connecting portion install in the through-hole, the safety cover still is equipped with the mounting groove, the mounting groove set up in on the connecting portion.

The utility model discloses in, the connecting portion of above-mentioned safety cover with it is sealed gluey to be connected with the second between the pore wall of through-hole.

The utility model discloses in, be equipped with the sealing ring between the outer wall of above-mentioned safety cover and the pore wall of through-hole, sealed surrounding the circumference setting of safety cover, sealing ring elasticity support lean on in the pore wall of through-hole or the connecting portion of safety cover.

The utility model discloses still relate to a mobile terminal, including foretell side fingerprint device.

The utility model discloses a side fingerprint device designs into the safety cover with traditional protective layer, and the safety cover is detained and is established in fingerprint module top, installs the safety cover in the through-hole of shell again, can not only realize preventing liquid effect through the parcel of safety cover to the fingerprint module, can promote the antistatic behavior of fingerprint module greatly moreover, can also promote customer's sense of touch experience effect and outward appearance beautify the effect in addition.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a conventional mobile terminal.

Fig. 2 is a schematic view of a partial cross-sectional structure of a side fingerprint device according to a first embodiment of the present invention.

Fig. 3 is a schematic top view of a side fingerprint device according to a first embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a side fingerprint device according to a second embodiment of the present invention.

Fig. 5 is a schematic partial sectional view of a side fingerprint device according to a second embodiment of the present invention.

Fig. 6 is a schematic partial sectional view of a side fingerprint device according to a third embodiment of the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.

First embodiment

Fig. 2 is the utility model discloses side fingerprint device's of first embodiment sectional structure schematic diagram, fig. 3 is the utility model discloses side fingerprint device's of first embodiment overlook the schematic structure diagram, as shown in fig. 2 and fig. 3, side fingerprint device includes shell, safety cover 12 and fingerprint module 13, and the side of shell is equipped with the through-hole, and fingerprint module 13 is installed in the shell and is set up in through-hole department, and safety cover 12 detains and locates fingerprint module 13 top, and safety cover 12 is connected with the through-hole cooperation. In the present embodiment, the material of the protection cover 12 is, for example, glass or plastic, but not limited thereto.

The utility model discloses a side fingerprint device designs into safety cover 12 with traditional protective layer, and safety cover 12 is detained and is established in fingerprint module 13 top, installs safety cover 12 in the through-hole of shell again, can not only realize preventing liquid effect to fingerprint module 13's parcel through safety cover 12, can promote fingerprint module 13's antistatic effect greatly moreover, can also promote customer's sense of touch experience effect and outward appearance beautify effect in addition.

Further, the fingerprint module 13 includes a fingerprint chip 131 and a circuit board 132, the fingerprint chip 131 is electrically connected to the circuit board 132, specifically, in this embodiment, the fingerprint chip 131 and the circuit board 132 are electrically connected through solder paste; the protective cover 12 is provided with a mounting groove 101, the fingerprint chip 131 is mounted in the mounting groove 101, the circuit substrate 132 is arranged outside the mounting groove 101 of the protective cover 12, the protective cover 12 wraps the fingerprint chip 131 to prevent the fingerprint chip 131 from contacting with liquid, and the fingerprint chip 131 is prevented from losing efficacy.

Further, the protective cover 12 is fixedly attached to the circuit substrate 132, or the protective cover 12 is fixedly attached to the housing. In this embodiment, the opening end of the protective cover 12 abuts against the circuit substrate 132, the fingerprint chip 131 is fixedly arranged in the protective cover 12 through the adhesive, and the fingerprint chip 131 is fixedly connected with the bottom or the wall of the installation groove 101, specifically, the fingerprint chip 131 is fixedly connected with the bottom of the installation groove 101; the bonding adhesive is, for example, OCA adhesive or OCR adhesive, but not limited thereto. In another preferred embodiment, the protective cover 12 can be fixedly attached to the housing by glue or snap-in clips.

Further, the first sealant 14 is connected between the open end of the protective cover 12 and the circuit board 132. In this embodiment, the housing includes a frame 11, the frame 11 includes an inner wall 111 and an outer wall 112 that are disposed opposite to each other, one side of the frame 11 close to the circuit substrate 132 is the inner wall 111, one side of the frame 11 away from the circuit substrate 132 is the outer wall 112, the through hole penetrates through the inner wall 111 and the outer wall 112, the circuit substrate 132 covers the through hole, a first sealant 14 is connected between the circuit substrate 132 and the inner wall 111, and a first sealant 14 is connected between an open end of the protective cover 12 and the circuit substrate 132. Circuit substrate 132 and inner wall 111, the open end of safety cover 12 all passes through first sealed 14 fixed connection that glues, first sealed glue 14 between the open end of circuit substrate 132 and safety cover 12 can prevent that liquid from getting into fingerprint module 13 through the clearance between safety cover 12 and the frame 11 inside, avoid fingerprint module 13's circuit substrate 132 to become invalid, and first sealed glue 14 between circuit substrate 132 and the inner wall 111 can prevent that liquid from permeating the shell between circuit substrate 132 and the inner wall 111.

Further, the fingerprint module 13 further includes a supporting plate 15, and the circuit board 132 is fixed on the supporting plate 15. In this embodiment, the supporting board 15 is disposed on a side of the circuit substrate 132 away from the fingerprint chip 131, and the supporting board 15 and the circuit substrate 132 are fixedly connected through a conductive adhesive, such as a conductive silver adhesive or a conductive silver-copper adhesive; the support plate 15 is used to structurally reinforce the circuit board 132, and the support plate 15 is, for example, a steel plate, an iron plate, or the like, but not limited thereto.

Further, the protective cover 12 includes an arc-shaped touch surface, the arc-shaped touch surface is disposed outside the through hole, and the arc-shaped touch surface is used for waking up the fingerprint module 13; the arc-shaped touch surface is, for example, a 3D arc-shaped touch surface, a wavy touch surface, a grid bump-shaped touch surface, a twill-shaped touch surface or a frosted touch surface, so that the appearance beautifying effect is increased, the touch experience effect of a client is greatly improved, and the limitation is not met.

Further, the protective cover 12 further includes a touch portion 121 and a connecting portion 122, the connecting portion 122 is connected to the touch portion 121, the touch portion 121 is disposed outside the through hole, and the arc-shaped touch surface is disposed on the touch portion 121; the connection portion 122 is installed in the through hole, and the installation groove 101 is disposed on the connection portion 122. In this embodiment, the connecting portion 122 is, for example, an oval or rectangular shape, and the end of the connecting portion 122 is fixedly connected to the circuit board 132 through the first sealant 14, so as to prevent liquid from entering the fingerprint module 13 through the gap between the protective cover 12 and the frame 11, thereby preventing the fingerprint module 13 from failing.

Further, the protective cover 12 is tightly connected with the wall of the through hole, and specifically, the protective cover 12 and the through hole can be tightly connected through a sealing member, such as a sealing ring, glue, an adhesive tape, or an elastic ring; the tight connection can also be made only by the interference fit in the dimension between the protective cover 12 and the through hole, but not limited to this.

Further, the side fingerprint device further includes a complete machine circuit board 16, the complete machine circuit board 16 is installed in the housing, and the circuit substrate 132 is electrically connected with the complete machine circuit board 16. In the present embodiment, the circuit board 132 and the circuit board 16 are electrically connected by a conductive material such as solder paste, but not limited thereto.

Second embodiment

Fig. 4 is a schematic cross-sectional view of a side fingerprint device according to a second embodiment of the present invention, and as shown in fig. 4, the side fingerprint device of this embodiment is substantially the same in structure as the side fingerprint device of the first embodiment, and is different in the structure of the sealing member between the protection cover 12 and the through hole.

Specifically, the second sealant 17 is connected between the outer wall 112 of the protective cover 12 and the wall of the through hole. In this embodiment, the second sealant 17 is fixedly connected to the connecting portion 122 of the protective cover 12 and the gap between the hole walls of the through holes, and the second sealant 17 can prevent liquid from entering the fingerprint module 13 through the gap between the protective cover 12 and the frame 11, thereby preventing the circuit board 132 of the fingerprint module 13 from failing.

Third embodiment

Fig. 5 is a schematic partial sectional view of a side fingerprint device according to a third embodiment of the present invention, and as shown in fig. 5, the side fingerprint device of this embodiment is substantially the same as the side fingerprint device of the first embodiment in structure, and the difference is that the connection structure between the protection cover 12 and the through hole is different.

Specifically, the connecting portion 122 of the protective cover 12 is provided with the sealing ring 18, the sealing ring 18 is disposed around the circumference of the protective cover 12, and the sealing ring 18 elastically abuts against the hole wall of the through hole. In this embodiment, the number of the sealing rings 18 is, for example, 1, 2 or 3, and the sealing rings 18 are, for example, elastic materials such as silica gel or rubber, but not limited thereto, the sealing rings 18 can prevent liquid from entering the interior of the fingerprint module 13 through the gap between the protection cover 12 and the frame 11, and prevent the circuit substrate 132 of the fingerprint module 13 from failing.

Fourth embodiment

Fig. 6 is a schematic partial sectional view of a side fingerprint device according to a fourth embodiment of the present invention, and as shown in fig. 6, the side fingerprint device of this embodiment is substantially the same as the side fingerprint device of the first embodiment in structure, and the difference is that the connection structure between the protection cover 12 and the through hole is different.

Specifically, the hole wall of the through hole is fixed with an elastic ring 19, the elastic ring 19 is arranged around the axis of the through hole, and the elastic ring 19 is elastically abutted against the outer wall 112 of the protective cover 12. In this embodiment, the elastic ring 19 can prevent liquid from entering the interior of the fingerprint module 13 through the gap between the protective cover 12 and the frame 11, and avoid the circuit board 132 of the fingerprint module 13 from failing, and the number of the elastic ring 19 is, for example, 1, 2, or 3, but not limited thereto.

The utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses a within the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. A side fingerprint device is characterized by comprising a shell, a protective cover (12) and a fingerprint module (13), wherein a through hole is formed in the side of the shell; the fingerprint module (13) is arranged in the shell and is arranged at the through hole, the protective cover (12) is buckled above the fingerprint module (13), the protective cover (12) is matched and connected with the through hole, the protective cover (12) comprises a touch part (121) and a connecting part (122), the connecting part (122) is connected with the touch part (121), the touch part (121) is arranged outside the through hole, an arc touch surface is arranged on the touch part (121), and the arc touch surface is used for awakening the fingerprint module (13); connecting portion (122) with the through-hole cooperation is connected, just connecting portion (122) are detained and are located fingerprint module (13) top.

2. The side fingerprint device according to claim 1, wherein the fingerprint module (13) comprises a fingerprint chip (131) and a circuit board (132), the fingerprint chip (131) is electrically connected to the circuit board (132), a mounting groove (101) is disposed on the connecting portion (122), the fingerprint chip (131) is mounted in the mounting groove (101), and the circuit board (132) is disposed outside the mounting groove (101).

3. The side fingerprint apparatus of claim 2, wherein the protective cover (12) is fixedly attached to the circuit substrate (132) or the protective cover (12) is fixedly attached to the housing.

4. The side edge finger printing apparatus according to claim 2, wherein a first sealant (14) is connected between the open end of the protective cover (12) and the circuit substrate (132).

5. The side fingerprint apparatus of claim 1, wherein a second sealant (17) is attached between the connecting portion (122) of the protective cover (12) and the wall of the through hole.

6. The side fingerprint device of claim 1, wherein a sealing ring (18) is provided between the connecting portion (122) of the protective cover (12) and the wall of the through hole, the sealing ring (18) is disposed around the circumference of the protective cover (12), and the sealing ring (18) is elastically abutted against the wall of the through hole.

7. A mobile terminal, characterized in that it comprises a side fingerprint device according to any one of claims 1 to 6.