WO2022262466A1

WO2022262466A1 - Waterproof member and waterproof button module for side fingerprint button, and terminal

Info

Publication number: WO2022262466A1
Application number: PCT/CN2022/091535
Authority: WO
Inventors: 余斌
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-06-15
Filing date: 2022-05-07
Publication date: 2022-12-22
Also published as: CN216486510U

Abstract

A waterproof member and a waterproof button module for a side fingerprint button, and a terminal, wherein the waterproof member comprises: a waterproof member body (1). A side edge of the waterproof member body (1) is used for sealingly fitting to the inner side of a side bezel of the terminal. An accommodating slot (103) is formed on the waterproof member body (1). The accommodating slot (103) is used for accommodating a switch pressing head (7) of the side fingerprint button located on the outer side of the side bezel of the terminal. The switch pressing head (7) is attached to the elastic slot bottom of the accommodating slot (103).

Description

Waterproof part of side fingerprint button, waterproof button module and terminal

Cross References to Related Applications

This application claims the priority of the Chinese patent application CN202121322201.5 entitled "A Waterproof Part for Side Fingerprint Button, Waterproof Button Module and Terminal" filed on June 15, 2021, the entire content of which is incorporated herein by reference Applying.

technical field

The present disclosure relates to but not limited to the field of side fingerprint buttons, and specifically, relates to but not limited to a waterproof part of side fingerprint buttons, a waterproof button module and a terminal.

Background technique

The fingerprint button of the terminal can be set on the front, back or side of the terminal. Among them, setting the fingerprint button on the side can not only optimize the vision of the terminal screen, but also facilitate fingerprint identification and buttons, and is now widely used. At present, in order to prolong the service life of terminals, terminals such as mobile phones and tablet computers are required to have waterproof and dustproof functions. Because the side fingerprint button unlocks the screen fingerprint when touched, and triggers the button switch to realize the power switch and other functions when pressed, so the side fingerprint button needs to have a certain degree of activity for pressing, thus increasing the waterproofness of the side fingerprint button. The difficulty of dusting. At present, the side fingerprint button is mostly sealed by setting a sealing ring directly on the side wall of the fingerprint recognition chip of the fingerprint button, which not only restricts the pressing operation of the side fingerprint button, but also has a poor sealing effect at the side fingerprint button, which affects the terminal. service life.

Contents of the invention

The disclosure provides a waterproof part of a side fingerprint button, a waterproof button module, and a terminal, and solves the technical problem that the sealing effect of the side fingerprint button is poor, which shortens the service life of the terminal.

An embodiment of the present disclosure provides a waterproof part of a side fingerprint button, including: a waterproof part body, the side edge of the waterproof part body is used to seal and cooperate with the inner side of the side frame of the terminal, and a receiving groove is provided on the waterproof part body, and the receiving groove is used for The switch pressing head of the side fingerprint button located outside the side frame of the terminal is accommodated, and the switch pressing head is attached to the elastic groove bottom of the receiving groove.

An embodiment of the present disclosure also provides a waterproof button module for side fingerprint buttons, including: a fingerprint recognition chip, a first circuit board, and a second circuit board, and the fingerprint recognition chip is fixed on the first circuit board and electrically connected to the first circuit board , the fingerprint identification chip is located outside the side frame of the terminal, the switch pressing head is installed on the first circuit board, the first circuit board is located between the fingerprint identification chip and the switch pressing head, the second circuit board is located inside the side frame of the terminal, and the second circuit board is located on the inside of the side frame of the terminal. A key switch is arranged on the second circuit board. Between the first circuit board and the second circuit board, the waterproof part of the above-mentioned side fingerprint button is arranged, the switch pressing head is fitted in the receiving groove, and the groove bottom of the receiving groove is located between the switch pressing head and the key switch, and the first circuit The board is electrically connected to the second circuit board through the conductor passing through the relief part.

An embodiment of the present disclosure also provides a terminal, including the above-mentioned waterproof button module for side fingerprint buttons.

Other features and corresponding beneficial effects of the present disclosure are explained in the following part of the description, and it should be understood that at least part of the beneficial effects become obvious from the description in the present disclosure.

Description of drawings

FIG. 1 is a schematic structural diagram of a waterproof part of a side fingerprint button according to Embodiment 1 of the present disclosure;

Fig. 2 is the A direction view of Fig. 1;

Fig. 3 is a schematic diagram of the waterproof part of the side fingerprint button according to the embodiment of the present disclosure, including the first sealing body and the solid body;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the B-B sectional view of Fig. 3;

6 is a schematic diagram of another structure of the waterproof part of the side fingerprint button according to the embodiment of the present disclosure;

FIG. 7 is another structural schematic diagram of the housing groove of the waterproof component of the side fingerprint button according to the embodiment of the present disclosure;

Fig. 8 is another structural schematic diagram of the waterproof part of the side fingerprint button according to the embodiment of the present disclosure;

9 is a schematic structural diagram of a waterproof button module for a side fingerprint button according to Embodiment 2 of the present disclosure;

FIG. 10 is a schematic diagram of cooperation between a fingerprint identification chip and a first circuit board according to an embodiment of the present disclosure;

11 is a schematic structural diagram of a second circuit board according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural view of a stent according to an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of a waterproof button module with a side fingerprint button installed on a terminal according to an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of cooperation between a waterproof component of a side fingerprint button and a side frame of a terminal according to an embodiment of the present disclosure.

detailed description

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below through specific implementation manners in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present disclosure, not to limit the present disclosure.

Embodiment one

In order to solve the problem of poor sealing effect at the side fingerprint button and shorten the service life of the terminal, a waterproof part for the side fingerprint button is provided. In this embodiment, the side fingerprint button can be but not limited to various mobile phones and full-screen mobile phones. , tablet computers, smart wearable devices, laptops, monitors, and other side fingerprint buttons. An example of the waterproof member provided in this embodiment is shown in FIGS. 1-8 .

As shown in FIG. 1 , the waterproof element of this embodiment includes a waterproof element body 1 , and side edges of the waterproof element body 1 are used to seal fit with the inner side of the side frame of the terminal. It can be understood that the side frame of the terminal is a frame located on the periphery of the terminal that protects the screen or fixes internal components, such as the front frame and middle frame of a mobile phone or a tablet computer, and the inner side of the side frame of the terminal is also the middle frame; among them, The sealing fit is that after the installation is completed, the side edge of the waterproof body 1 is in a sealed state with the side frame of the terminal, which can be clamped and fixed in the side frame of the terminal through the elastic deformation of the waterproof body 1, or bonded and fixed on the A seal is formed in the side bezel of the terminal. In an implementation manner of this embodiment, the waterproof element body 1 may be, but not limited to, a bar-shaped structure, and the width of the bar-shaped structure may be determined according to the lateral width of the side frame of the terminal.

The waterproof part body 1 of this embodiment is provided with a receiving groove 103, which is used to accommodate the switch pressing head 7 of the side fingerprint button located outside the side frame of the terminal, and the switching pressing head 7 and the receiving groove 103 have an elastic groove bottom. . Because the waterproof part body 1 is located at the receiving groove 103, there is a groove, so the thickness of the waterproofing part body 1 at the receiving groove 103 is the thickness of the groove bottom of the containing groove 103, where the thickness is thin, which is more conducive to having an elastic groove bottom. Elastic deformation of 105. It can be understood that the elastic groove bottom 105, that is, the groove bottom is made of an elastically deformable flexible material. When the groove bottom is pushed by the switch pressing head 7, it will elastically deform and protrude outward. When the thrust of head 7 just can return elastically to return.

In this embodiment, by sealing the waterproof part body 1 on the inner side of the side frame of the terminal, the first circuit board 3 of the side fingerprint button is sealed and isolated from the inside of the terminal, which enhances the sealing performance of the side fingerprint button. Prevent water or dust from entering the interior of the terminal from the side fingerprint button, prolonging the service life of the terminal. At the same time, through the elastic effect of the groove bottom 105 of the receiving groove 103, the flexible operation of the side fingerprint button when pressed is guaranteed.

In an example of this embodiment, one end of the waterproof member body 1 extends longitudinally along the side frame of the terminal to form an extended sealing end 109, and the extended sealing end 109 is provided with a relief portion 104, which is used for the side fingerprint button The conductor 301 electrically connected between the first circuit board 3 of the terminal and the second circuit board 4 of the terminal passes through, the waterproof member body 1 is located between the first circuit board 3 and the second circuit board 4, and the extended sealing end 109 is connected to the second circuit board 4. A circuit board 3 is attached. The groove bottom 105 of the receiving groove 103 is located between the switch pressing head 7 and the key switch 401 of the second circuit board 4 . In this embodiment, the bottom of the receiving groove 103 is closed, which can form a seal between the switch pressing head 7 and the key switch 401 of the second circuit board 4 . The extended sealing end 109 not only ensures the electrical connection between the first circuit board 3 and the second circuit board 4 , but also forms a seal between the first circuit board 3 and the second circuit board 4 . The relief portion 104 is tightly attached to the conductor 301 passing therethrough to form a seal, and at the same time, the extended sealing end 109 is pressed against the first circuit board 3 to form a seal. Wherein, it can be understood that the first circuit board 3 is a circuit board that is electrically connected with the fingerprint recognition chip 1 and plays the role of fingerprint collection, and the second circuit board 4 is a circuit board that is electrically connected with the main board of the terminal and plays the role of transferring fingerprint signals . The first circuit board 3 can be a flexible circuit board (Flexible Printed Circuit, FPC). In order to ensure the strength of the FPC, the FPC can be fixed on the reinforcing steel sheet 5 by glue, and the reinforcing steel sheet 5 has solidified the FPC, which is convenient for the FPC. installation; or the first circuit board 3 may also be a hard circuit board, which is not limited in this embodiment. The second circuit board 4 can also be a flexible circuit board FPC or a hard circuit board. When it is a flexible circuit board FPC, it can also be solidified with a reinforced steel sheet. The key switch 401 on the second circuit board 4 acts as a terminal power switch. In some application scenarios, the waterproof body 1 may not be provided with the extended sealing end 109. As shown in FIG. 8, the waterproof body can still form a seal between the first circuit board 3 of the side fingerprint button and the interior of the terminal.

In this example, the relief portion 104 may be, but not limited to, a through hole, at least one of which is provided. In one example, one through hole can be provided, that is, no matter how many conductors 301 there are, each conductor 301 passes through this one through hole, and is formed by pressing the extended sealing end 109 and the first circuit board 3 seal. In another example, multiple through holes may be provided, and the number of through holes may correspond to the number of conductors 301 electrically connected between the first and second circuit boards, that is, one conductor 301 passes through one through hole. Alternatively, the number of through holes may be less than the number of conductors 301, that is, two or three conductors 301 pass through one through hole. It can be understood that the position of the through hole can correspond to the position of the conductor 301 passing through. For example, if the conductive copper column is set on the first circuit board 3, the position of the through hole is the same as the position of the conductive copper column on the first circuit board 3. Corresponding; when the conductor 301 is flexible, the position of the through hole may not correspond to the position of the conductor 301 passing through.

In an example of this embodiment, as shown in FIG. 2 , the waterproof element body 1 is an integral flexible sealing body 108 formed by injection molding. The flexible sealing body 108 is an elastically deformable sealing body, which can play a sealing role through elastic deformation. The integrated flexible sealing body 108 has a simple structure, which not only ensures the sealing of the side fingerprint buttons, but also has simple processing and low manufacturing cost. In this embodiment, the flexible sealing body 108 can be integrally injection-molded using, but not limited to, plastic, silicone, and rubber.

In another example, as shown in FIG. 3 , the waterproof body 1 includes a first sealing body 101 and a solid body 102, the first sealing body 101 is fixed on the outer periphery of the solid body 102, and the hardness of the first sealing body 101 is less than that of the solid body. The hardness of the body 102. The side edge of the waterproof element body 1 is the first sealing body 101 for sealing fit with the inner side of the side frame of the terminal, and the groove bottom of the receiving groove 103 is the elastic bottom of the receiving groove 103 formed by the first sealing body 101 . In this example, the first sealing body 101 plays the role of sealing or elastic relief, ensuring the sealing effect of the waterproof body 1; the solid body 102 mainly plays the role of fixing the shape, which can increase the strength of the waterproof body 1 and facilitate waterproofing Installation of the piece body 1. In this example, the first sealing body 101 can be made of but not limited to soft rubber, silica gel or sealing foam, and the solid body 102 can be made of but not limited to plastic or rubber. In one embodiment of this example, the first sealing body 101 is fixed on the outer periphery of the solid body 102 by injection molding. The fixation on the body 102 is also good. In another implementation manner of this example, the first sealing body 101 may also be fixed on the outer periphery of the solid body 102 in a way of pasting and fixing, and the processing cost of this way is relatively low.

In an example of this embodiment, when the waterproof member body 1 includes the first sealing body 101 and the solid body 102, the front end face 107 of the extended sealing end 109 is the first sealing body 101, and the front end face 107 is the extension sealing end 109 and the solid body 102. The attached side of the first circuit board 3 is shown in FIG. 5 . The first sealing body 101 of the front end surface 107 is subjected to the pressure of the first circuit board 3, and has the effect of positive pressure and waterproof. The electrical conductor 301 electrically connected between the first circuit board 3 and the second circuit board 4 can prevent water or dust from entering the interior of the terminal through the via hole 104, and enhance the sealing effect of the waterproof member. It should be understood that when the waterproof body 1 is an integral flexible sealing body 108 formed by injection molding, the via hole 104 still has a good sealing effect, and the flexible sealing body 108 will wrap the gap between the first circuit board 3 and the second circuit board 4 Conductors 301 electrically connected between them form a seal. In this example, the first sealing body 101 of the front end face 107 can be integrated with the first sealing body 101 of the side edge of the waterproof element body 1 , at this time, the first sealing body 101 of the front end face 107 and the waterproof element body 1 The first sealing body 101 on the side edge of the waterproof body 1 can be made of the same soft rubber or silica gel; or, the first sealing body 101 on the front end 107 may not be connected to the first sealing body 101 on the side edge of the waterproof member body 1. At this time, the first sealing body 101 of the front end surface 107 can be fixed on the front end surface 107 of the solid body 102 by using sealing foam material, and the first sealing body 101 of the side edge can still be made of soft rubber or silica gel. .

In another example of this embodiment, as shown in FIG. 6, the solid body 102 can be completely wrapped by the first sealing body 101, that is, the solid body 102 is located in the first sealing body 101 without an external leakage surface, and it can also be The waterproof part not only has a sealing function and an elastic function, but also has a certain strength and is convenient for installation.

In yet another example of this embodiment, the rear end surface of the solid body 102 is leaking, and the first sealing body 101 is wrapped around the front end surface and the side edge of the solid body 102. At this time, the rear end surface of the solid body 102 is also waterproof. The rear end surface 106 of the component body 1.

In an implementation of this embodiment, the groove bottom 105 of the receiving groove 103 protrudes from the rear end surface 106 of the waterproof element body 1 , and the rear end surface 106 is the opposite side of the waterproof element body 1 to the second circuit board 4 . The elastic deformation of the protruding groove bottom 105 is better, which can increase the amount of elastic deformation of the groove bottom 105, that is, the movable space of the switch pressing head 7 is larger, which is convenient for the switch pressing head 7 to switch the button of the second circuit board 4 401's pressing force. In one example, the protruding groove bottom 105 may be in a stepped shape corresponding to the shape of the switch pressing head 7 , as shown in FIG. 5 . In another example, the protruding groove bottom 105 can also be a plane, as shown in FIG. 7 , the plane groove bottom 105 can also ensure the pressing effect of the switch pressing head 7 on the key switch 401 .

The above-mentioned waterproof part is arranged between the first circuit board 3 and the second circuit board 4, and the waterproof part body 1 is clamped and fixed in the hole provided on the side frame of the terminal, preventing water or dust from coming from the side edge of the waterproof part of the side fingerprint button. Or the abdication portion 104 enters the interior of the terminal to form a seal at the side fingerprint button, which improves the sealing performance of the terminal and prolongs the service life of the terminal. Simultaneously, the switch pressing head 7 is located in the receiving groove 103, and the groove bottom 105 of the receiving groove 103 has elasticity, thus exerting force to press the fingerprint identification chip 2 can make the switch pressing head 7 exert pressure on the key switch 401 of the second circuit board 4. Press hard to realize the power switch function of the side fingerprint button, which ensures the flexible operation of the side fingerprint button when pressed, and the groove bottom 105 of the receiving groove 103 is located between the switch pressing head 7 and the key switch 401 to realize sealing.

Embodiment two

This embodiment provides a waterproof button module for side fingerprint buttons. As shown in Figure 9-14, the waterproof button module includes: a fingerprint identification chip 2, a first circuit board 3, a second circuit board 4, a The chip 2 is fixed on the first circuit board 3 and is electrically connected with the first circuit board 3. The fingerprint identification chip 2 is located outside the side frame of the terminal. The switch pressing head 7 is installed on the first circuit board 3. The first circuit board 3 is located on the fingerprint Between the identification chip 2 and the switch pressing head 7 , the second circuit board 4 is located inside the side frame of the terminal, and a key switch 401 is arranged on the second circuit board 4 .

Between the first circuit board 3 and the second circuit board 4, the waterproof part of the above-mentioned side fingerprint button is arranged, the switch pressing head 7 is matched in the receiving groove 103, and the groove bottom of the receiving groove 103 is located between the switch pressing head 7 and the key switch. 401 , the first circuit board 3 is electrically connected to the second circuit board 4 through the abdication portion 104 through a conductor.

In this embodiment, the conductor 301 can be a conductive post or other conductive parts. When it is a conductive post, the second circuit board 4 can be provided with a conductive shrapnel 402 correspondingly. The conductive shrapnel 402 has the effect of elastic deformation, which can make the conductive The elastic piece 402 is always against the conductive column, which ensures the stability of the electrical connection between the first circuit board 3 and the second circuit board 4 .

In an implementation of this embodiment, the fingerprint identification chip 2 is fixed on the first circuit board 3 by bonding, the first circuit board 3 is fixed on the switch pressing head 7 by bonding, and the second circuit board 4 is fixed on the bracket by bonding 6, the bracket 6 is provided with a groove 601 for placing the second circuit board 4, the bracket 6 is fixed on the side frame 8 of the terminal by screws, the bracket 6 facilitates the installation of the second circuit board 4, and the groove 601 forms a bit, which facilitates the arrangement of the terminal structure.

The above-mentioned waterproof button module of the side fingerprint button is easy to install, and by sealing the waterproof part inside the side frame of the terminal, the first circuit board 3 of the side fingerprint button is sealed and isolated from the inside of the terminal. The sealing of the side fingerprint button is formed, which increases the sealing performance of the terminal and prolongs the service life of the terminal; and ensures the flexible operation of pressing the side fingerprint button when it is used as a power switch.

This embodiment also provides a terminal, including the above-mentioned waterproof button module for side fingerprint buttons. The waterproof button module of the terminal has good sealing performance, which increases the sealing performance of the terminal and prolongs the service life of the terminal, and the pressing operation of the terminal is also flexible when using the side fingerprint button.

In summary, using the waterproof part of the side fingerprint button, the waterproof button module, and the terminal provided by the present disclosure, the first circuit board of the side fingerprint button can be made It forms a sealed isolation with the interior of the terminal, thereby achieving the effect of enhancing the sealing performance of the side fingerprint button, preventing water or dust from entering the interior of the terminal from the side fingerprint button, and prolonging the service life of the terminal. At the same time, the switch pressing head is located in the receiving groove, and the groove bottom of the receiving groove is elastic, so that the switch pressing head can directly press the button switch of the second circuit board to realize the power switch function of the side fingerprint button and ensure the side fingerprint button. The fingerprint button can be operated flexibly when pressed, and the groove bottom of the receiving groove also has a sealing effect.

The above content is a further detailed description of the embodiments of the present disclosure in conjunction with specific implementation modes, and it cannot be assumed that the specific implementation of the present disclosure is limited to these descriptions. Those of ordinary skill in the technical field to which the present disclosure belongs can make some simple deduction or substitution without departing from the concept of the present disclosure, which should be deemed to belong to the protection scope of the present disclosure.

Claims

A waterproof part of a side fingerprint button, comprising: a waterproof part body (1), the side edge of the waterproof part body (1) is used to seal and cooperate with the inner side of the side frame of the terminal, and the waterproof part body (1) An accommodating groove (103) is provided, and the accommodating groove (103) is used to accommodate the switch pressing head (7) of the side fingerprint button located outside the side frame of the terminal, and the switch pressing head (7) is connected with the accommodating groove (103) Elastic grooved bottom fit.
The waterproof part of the side fingerprint button according to claim 1, wherein one end of the waterproof part body (1) extends longitudinally along the side frame of the terminal as an extended sealing end (109), and the extended sealing end (109) A step-off part (104) is provided, and the step-off part (104) is used for the conductor electrically connected between the first circuit board (3) of the side fingerprint button and the second circuit board (4) of the terminal to pass through, The waterproof member body (1) is located between the first circuit board (3) and the second circuit board (4), and the extended sealing end (109) is attached to the first circuit board (3) combine.
The waterproof component for side fingerprint buttons according to claim 2, wherein the relief part (104) is a through hole, and at least one of the through holes is provided.
The waterproof part of the side fingerprint button according to any one of claims 1-3, wherein the waterproof part body (1) is an injection-molded integral flexible sealing body (108);

or,

The waterproof body (1) includes a first sealing body (101) and a solid body (102), the first sealing body (101) is fixed on the outer periphery of the solid body (102), and the first sealing body The hardness of (101) is less than that of the solid body (102), and the side edge of the waterproof body (1) is used for the first sealing body (101) to seal and cooperate with the inner side of the side frame of the terminal, so The groove bottom of the accommodation groove (103) forms an elastic groove bottom of the accommodation groove (103) for the first sealing body (101).
The waterproof part of the side fingerprint button according to claim 4, wherein the waterproof part body (1) comprises a first sealing body (101) and a solid body (102), and the first sealing body (101) is formed by injection molding The molding is fixed on the periphery of said solid body (102).
The waterproof part of the side fingerprint button according to claim 4, wherein the waterproof part body (1) comprises a first sealing body (101) and a solid body (102), and the front end surface of the extending sealing end (109) It is the first sealing body (101), and the front end surface is the surface where the extended sealing end (109) is attached to the first circuit board (3).
The waterproof part of the side fingerprint button according to any one of claims 1-3, wherein the bottom of the receiving groove (103) protrudes from the rear end face of the waterproof part body (1), and the rear end face is The side of the waterproof element body (1) opposite to the second circuit board (4).
A waterproof button module for side fingerprint buttons, comprising: a fingerprint identification chip (2), a first circuit board (3), and a second circuit board (4), the fingerprint identification chip (2) is fixed on the first The circuit board (3) is electrically connected to the first circuit board (3), the fingerprint recognition chip (2) is located outside the side frame of the terminal, and a switch pressing head ( 7), the first circuit board (3) is located between the fingerprint recognition chip (2) and the switch pressing head (7), and the second circuit board (4) is located inside the side frame of the terminal, A key switch (401) is set on the second circuit board (4);

The waterproof part of the side fingerprint button according to claims 1-7 is arranged between the first circuit board (3) and the second circuit board (4), and the switch pressing head (7) is fitted on the In the accommodating groove (103), the bottom of the accommodating groove (103) is located between the switch pressing head (7) and the key switch (401), and the first circuit board (3) is passed through a conductor. The electric connection between the relief part (104) and the second circuit board (4) is carried out.
The waterproof button module for side fingerprint buttons according to claim 8, wherein the second circuit board (4) is fixed on the bracket (6), and the bracket (6) is provided with a circuit board for placing the second circuit board. The groove (601) of the board (4), the bracket (6) is used for fixing with the side frame of the terminal.
A terminal, comprising the waterproof key module of the side fingerprint key according to claim 8 or 9.