WO2019071453A1

WO2019071453A1 - Anti-swaying structure of fingerprint module and mobile terminal

Info

Publication number: WO2019071453A1
Application number: PCT/CN2017/105638
Authority: WO
Inventors: 余显波; 肖风; 朱朋; 刘雷刚; 陶玉华
Original assignee: 深圳传音通讯有限公司
Priority date: 2017-10-11
Filing date: 2017-10-11
Publication date: 2019-04-18
Also published as: CN111201536A

Abstract

Provided in the present invention is an anti-swaying structure of a fingerprint module, comprising a fingerprint module, a touch panel, a rubber sleeve, a conductive base and a support frame, wherein the touch panel and the support frame are fastened to form a receiving cavity; the rubber sleeve suspends and supports the fingerprint module; when, during the process of the fingerprint module being pressed to form a conductive circuit with the conductive base, the rubber sleeve generates a pulling force due to elastic deformation, and the tensioned rubber sleeve keeps the fingerprint module from swaying in the horizontal direction; meanwhile, the fingerprint module has no squeezing obstacles in a first direction, and may smoothly move within a trajectory range so that the hand is guaranteed to feel the movement, and consistency may be well controlled. A mobile terminal using the structure of the present invention has the characteristics of a fingerprint button being comfortable and smooth, and the trajectory and the return force being notable, thereby greatly improving the user experience.

Description

Fingerprint module anti-sway structure and mobile terminal

Technical field

The present invention relates to the field of mobile terminals, and more particularly to a mobile terminal including fingerprint recognition.

Background technique

At present, mobile terminals on the market have more and more devices with fingerprint recognition functions on the front side. These devices usually use a button press to drive the fingerprint module to turn on the conductive base to turn on the fingerprint authentication function. The assembly structure of the mobile terminal is complicated, and there are many components that cooperate with the fingerprint module. In addition, in order to ensure the lightness and thinness of the mobile device, the space provided by the mobile terminal manufacturer to provide the fingerprint module for further pressing is further compressed. Providing a pressing structure with moderate stroke and stable button in a limited space is an urgent problem to be solved.

At present, the existing fingerprint module button design on the market does not pay attention to the user's feeling or reduce the cost and other factors. There is no constraint on applying the lateral force during the pressing process of the fingerprint module. Although the feel of the button can be guaranteed, most of them exist. Swinging more serious problems left and right (see Figure 2). Some manufacturers are beginning to realize this problem and try to limit the left and right sway of the fingerprint module by using a tray type pad (see Figure 3) or using a bracket for hard support (see Figure 4) to shorten the stroke, but the effect is not as expected. Ideal: On the one hand, the support form of the tray type rubber sleeve is easy to be deformed, and the rubber sleeve cannot be overlapped in the process of being squeezed by the fingerprint module because the force point and the center cannot be ensured, and the stroke of each pressing is not guaranteed, and the pressing feeling is also affected. Consistency; When the fingerprint module is pressed down by the bracket, the stroke of the entire fingerprint module is relatively reduced. Although the shaking can be improved, the overall feel of the button is deteriorated.

Summary of the invention

The object of the present invention is to provide a simple structure, which can effectively control the fingerprint module during the pressing process. The right-swing structure provides the following technical solutions:

The fingerprint module, the touch panel, the rubber sleeve, the conductive base and the support frame; the touch panel and the support frame are fastened to form a receiving cavity to receive the fingerprint module, the rubber sleeve and the conductive base; a through hole that communicates with the receiving cavity is formed on the touch panel, a part of the fingerprint module is received in the receiving cavity, and another part is embedded in the through hole; the rubber sleeve is encircled in the fingerprint module a peripheral end, and one end of the rubber sleeve is fixed to the touch panel, and the other end is connected to the fingerprint module; the conductive base is fixed to the support frame, and the fingerprint module is facing along the first direction The fingerprint module and the conductive base are turned on under the pressure of the fingerprint module, and the rubber sleeve is elastically deformed by the pressing force, and the elastic tension of the rubber sleeve The fingerprint module is made to have no offset in the second direction, and the second direction is perpendicular to the first direction.

The invention further relates to a mobile terminal device comprising any of the above-mentioned fingerprint module anti-sloshing structures.

The anti-sloshing structure of the fingerprint module of the invention designs the accommodating space of the fingerprint module, suspending the fingerprint module in the accommodating space to ensure the stroke of the pressing, and simultaneously changing the previous pressure-type rubber sleeve into the tension-type rubber sleeve The rubber sleeve is pressed and fixed on the top of the accommodating space through the touch panel and the support frame, and the rubber sleeve extends in the first direction to support the bottom of the fingerprint module, so that the rubber sleeve is elastically deformed during the pressing process. The tension is generated, and the tensioned rubber sleeve keeps the fingerprint module from shaking in the second direction. At the same time, the fingerprint module has no extrusion obstruction in the first direction, and can smoothly move in the range of travel, and the hand feel is guaranteed, and at the same time, Consistency can also be better controlled. The mobile terminal equipped with the structure of the invention has the characteristics that the fingerprint button is comfortable and smooth, and the stroke and the feedback force are obvious, thereby greatly improving the user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic view of a sway prevention structure of a fingerprint module of the present invention;

2 is a schematic diagram of a fingerprint module without lateral force constraints;

3 is a schematic view of a fingerprint module tray type pad support;

4 is a schematic view of the structural support of the fingerprint module support.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Please refer to the fingerprint module anti-sloshing structure of FIG. 1 , which includes a fingerprint module 01 , a touch panel 02 , a rubber sleeve 03 , a conductive base 04 and a support frame 05 . The touch panel 02 is fastened with the support frame 05 to form a housing. In the cavity 06, the fingerprint module 01, the rubber sleeve 03 and the conductive base 04 are sequentially housed in the receiving cavity 06 along the first direction. In this embodiment, the first direction is a vertical direction, and the second direction is a horizontal direction. One end of the rubber sleeve 03 is further fixed on a bottom surface of the touch panel 02, and the other end of the rubber sleeve 03 is oriented. a lower extension is disposed around the periphery of the fingerprint module 01, and is connected to the bottom surface of the fingerprint module 01. The fingerprint module 01 is supported from below, and the fingerprint module 01 is suspended and supported by the fingerprint module 01. A through hole 21 communicating with the receiving cavity 06 is defined in the receiving cavity 06. A part of the fingerprint module 01 is suspended in the receiving cavity 06, and another part is extended by the through hole 21. Out, for the user's finger contact pressing. The rubber sleeve 03 is connected to the bottom surface of the fingerprint module 01 in a centrally symmetric manner with respect to the fingerprint module 01, so as to ensure that the user presses the fingerprint. When the module 01 is used, the force of the rubber sleeve 03 is balanced. The conductive base 04 is fixed on the bottom surface of the support frame 05, facing the bottom surface of the fingerprint module 01, and the distance between the fingerprint module 01 and the vertical direction of the conductive base 04 in the free state. It is the fingerprint button stroke of the anti-sloshing structure of the present invention.

After the fingerprint button is pressed, the user pushes the fingerprint module 01 downward, and the rubber sleeve 03 is elastically deformed by being pulled by the fingerprint module 01 during the movement, and the fingerprint module 01 is in the Under the elastic tension of the rubber sleeve 03, since the horizontal force displacement does not occur due to the force balance, direct vertical downward movement is made to contact at the conductive base 04, thereby turning on the circuit for fingerprint recognition.

In some embodiments, because the direct connection process of the assembled fingerprint module 01 and the formed rubber sleeve 03 is complicated, and the process of directly bonding metal and rubber is relatively high, the fingerprint module 01 and the fingerprint module 01 are directly connected. The rubber sleeve 03 easily affects the yield of the process. To this end, at the bottom of the fingerprint module 01, a fixed adhesive 07 is provided in advance at the connection with the rubber sleeve 03. The fixed adhesive 07 is attached to the bottom surface of the fingerprint module 01. It is relatively easy to make the connection, and the connection of the fixing adhesive 07 as a transition piece to the rubber sleeve 03 can improve the reliability of the connection and the connection quality.

The rubber sleeve 03 has a section of the clamping portion 031 and a section of the bearing portion 032. The clamping portion 031 is disposed between the bottom surface of the touch panel 02 and the support frame 05. The portion 031 is for fixing the rubber sleeve 03. The bearing portion 03 is horizontally disposed at the bottom of the fingerprint module 01, and bears and holds the fingerprint module 01 upward. Between the clamping portion 031 and the bearing portion 032 is a hanging portion 033, the hanging portion 033 is a free segment, and the clamping portion 031 and the process are performed during the downward movement of the fingerprint module 01 Since the bearing portion 032 is not deformed because it is fixed, only the hanging portion 033 is deformed, thereby providing the elastic pulling force of the rubber sleeve 03.

The hanging portion 033 can also be provided with a curved portion 331. The curved portion 331 does not elastically deform at the beginning of the downward movement of the fingerprint module 01, but travels to the fingerprint module 01 to After the curved section 331 is straightened, the elastic pulling force is started. Therefore, the design of the curved section 331 The elastic deformation starting point of the hanging portion 033 during the pressing of the fingerprint module 01 can be adjusted.

If the fingerprint module 01 is pressed into contact with the conductive base 04, if the distance between the rubber sleeve 03 and the fingerprint module 01 is relatively close, and the elastic deformation generated after pressing, The frame of the fingerprint module 01 may be in contact with the rubber sleeve 03. If the border of the fingerprint module 01 is not processed correspondingly, the fingerprint module 01 that is too sharp and hard is repeatedly repeated. After the friction, the rubber sleeve may be scratched or even repaired. Therefore, it is necessary to perform a circular arc transition process on the corner of the frame of the fingerprint module 01 received in the receiving cavity 06.

For the same reason, the side surface of the frame that is not received in the receiving cavity 06 of the fingerprint module 01 may not be set as a vertical surface, but may be set to an inverted trapezoidal structure with a lower portion smaller than the upper portion, and an acute angle of the inverted trapezoid. The angle value is α, when the fingerprint module 01 is pressed down to the conductive base 04, the angle between the hanging portion 033 of the rubber sleeve 03 and the horizontal direction is β, and the hanging portion is The maximum deformation position of the 033 in the entire receiving cavity 06 is also the position where the angle between the hanging portion 033 and the horizontal direction is the largest. As long as α is greater than or equal to β, the frame of the fingerprint module 01 can be ensured not to contact. To the rubber sleeve 03, the scratching of the rubber sleeve 03 is avoided.

Since the suspension portion 033 needs to be repeatedly subjected to repeated elastic deformation, if the cross section of the hanging portion 033 is too thin, it is disadvantageous for the maintenance of its own service life. However, the current mobile device tends to be light and thin, and the clamping portion 031 of the rubber sleeve 03 is clamped between the touch panel 01 and the support frame 05 if the cross section of the clamping portion 03 Too thick, it will be very detrimental to the overall thickness control of mobile devices. If the bearing portion 032 is relatively thick, the bearing portion 032 may be in contact with the conductive base 04 or the support frame 05 in the downward process, thereby affecting the fingerprint module 01 and the conductive base. 04 contact. Therefore, the rubber sleeve 03 can be differently disposed on the cross-sectional thickness of different portions. Specifically, the clamping portion 031 and the bearing portion 032 are both thinner than the cross-section of the hanging portion 033.

When the user presses the fingerprint button, often because of various deviations, it is not directly pressed in the The center position of the fingerprint module 01, and in the case of eccentric pressing, if the hanging portion 033 is not connected to the fingerprint module 01 closest to the pressing portion, the hanging portion 033 is required to provide an elastic force to perform the opposite operation. The limitation of the shaking of the fingerprint module 01 is obvious. If the hanging portion 033 is too far away, the restraining force that can be provided is relatively small, and the effect that the anti-sloshing structure of the present invention can achieve is relatively weak. In order to achieve a better anti-sloshing effect, the hanging portion 033 should be continuously connected to the side of the fingerprint module 01 to ensure that the suspension portion 033 provides elastic support at any eccentric position.

Since the receiving cavity 06 is a sealed space, the uninterrupted connection of the hanging portion 033 divides the receiving cavity 06 into upper and lower portions, and the upper and lower portions are easily caused during the pressing of the fingerprint module 01. The air pressure is uneven, which has a certain influence on the feel of the button. Therefore, the venting hole 332 is disposed on the hanging portion 033 for balancing the gas pressure inside the receiving cavity, which may help to improve the button feel.

The present invention also relates to a mobile terminal including the anti-sloshing structure. The mobile terminal has the characteristics of the rubber sleeve 03 and the like suspended, thereby obtaining an effect that the fingerprint button does not sway when pressed.

The anti-sloshing structure of the fingerprint module of the mobile terminal of the present invention comprises the fingerprint module, the touch panel, the rubber sleeve, the conductive base and the support frame, and the touch panel and the support frame are buckled together The plastic sleeve suspends and supports the fingerprint module, and the fingerprint module generates a pulling force due to elastic deformation during the process of forming a passage with the conductive base, and the tensioned rubber sleeve maintains the fingerprint The module does not sway horizontally, and the fingerprint module has no squeezing obstacles in the vertical direction, which can smoothly move within the range of travel, the hand feel is guaranteed, and the consistency can be better controlled. In addition, the further setting of the rubber sleeve further optimizes the thickness of the entire mobile device and the comfort of the button, and obtains a better user experience.

The embodiments described above do not constitute a limitation on the scope of protection of the technical solutions. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above-described embodiments are intended to be included within the scope of the technical solutions.

Claims

A fingerprint module anti-sloshing structure, characterized in that:

Including a fingerprint module, a touch pad, a rubber sleeve, a conductive base and a support frame;

The touch panel and the support frame are fastened to form a receiving cavity to receive the fingerprint module, the rubber sleeve and the conductive base;

The touch panel is provided with a through hole that communicates with the receiving cavity, and a part of the fingerprint module is received in the receiving cavity, and another part is embedded in the through hole;

The rubber sleeve is disposed around the periphery of the fingerprint module, and one end of the rubber sleeve is fixed to the touch panel, and the other end is connected to the fingerprint module;

The conductive base is fixed to the support frame and faces the fingerprint module along a first direction;

The fingerprint module and the conductive base are turned on under the pressure state of the fingerprint module, and the rubber sleeve is elastically deformed by the pressing force, and the elastic tension of the rubber sleeve makes The fingerprint module has no offset in the second direction, and the second direction is perpendicular to the first direction.
The anti-sloshing structure of the fingerprint module of claim 1 , wherein the fingerprint module and the rubber sleeve are connected with a fixed adhesive as a transitional connection.
The anti-sloshing structure of the fingerprint module of claim 1 , wherein the fingerprint module is located at an edge of the frame in the receiving cavity to make a circular arc transition.
The anti-sloshing structure of the fingerprint module according to claim 1, wherein the rubber sleeve has a clamping portion and a length of a bearing portion, and the clamping portion is fixed to the bottom surface of the touch panel and the support frame. The weight bearing portion is deployed in the second direction to hold the fingerprint module along the first direction. Between the clamping portion and the bearing portion is a hanging portion, and the hanging portion is a free portion, and provides an elastic pulling force of the rubber sleeve due to deformation.
The anti-sloshing structure of the fingerprint module according to claim 4, wherein the hanging portion includes a curved portion, and the curved portion is used for adjusting an elastic deformation of the hanging portion during the pressing process of the fingerprint module Start point.
The sway prevention structure of the fingerprint module according to claim 4, wherein the side surface of the frame that is not received in the receiving cavity of the fingerprint module is not a vertical surface, and the inverted trapezoid is disposed at a lower portion than the upper portion. The acute angle value is greater than or equal to an angle between the hanging portion of the rubber sleeve and the horizontal direction when the fingerprint module is pressed down to the conductive base.
The anti-sloshing structure of the fingerprint module according to claim 4, wherein the thickness of the rubber sleeve is not uniform, and the clamping portion and the bearing portion are both thinner than the hanging portion.
The anti-sloshing structure of the fingerprint module according to claim 4, wherein the hanging portion is connected to the side of the fingerprint module without interruption.
The anti-sloshing structure of the fingerprint module according to claim 8, wherein the hanging portion is provided with a venting hole for balancing the gas pressure inside the receiving cavity.
A mobile terminal device comprising the fingerprint module anti-sloshing structure according to any one of claims 1 to 9.