CN207251702U - Postposition fingerprint recognition component and mobile terminal - Google Patents

Abstract

The utility model discloses a kind of postposition fingerprint recognition component and mobile terminal.Postposition fingerprint recognition component includes rear shell, and rear shell includes the side wall of the edge extension of substrate and self-reference substrate, and substrate includes outer surface and inner surface, and substrate offers the installation through-hole through the inner surface and the outer surface；The support chip being fixedly connected with inner surface, support chip include the supporting part that the periphery of self installation through hole extends to the center of installation through-hole；And case ring, case ring are arranged in installation through-hole and are fixedly connected with supporting part.And fingerprint sensor, fingerprint sensor are contained in case ring.In the postposition fingerprint recognition component and mobile terminal of the utility model embodiment, since fingerprint sensor is arranged in rear shell, avoid fingerprint sensor from being set up in parallel in the vertical with display screen, so as to increase the size of display screen to improve the screen accounting of mobile terminal, be conducive to user experience.

Description

Postposition fingerprint recognition component and mobile terminal

Technical field

It the utility model is related to field of terminal, more particularly to a kind of postposition fingerprint recognition component and mobile terminal.

Background technology

In the related art, fingerprint recognition module is arranged in the glass rear shell of the mobile terminals such as mobile phone, fingerprint recognition mould Group is set up in parallel in the vertical with display screen, is caused the screen accounting of mobile terminal small, is unfavorable for user experience.

Utility model content

The utility model embodiment provides a kind of postposition fingerprint recognition component and mobile terminal.

The postposition fingerprint recognition component of the utility model embodiment includes rear shell, and the rear shell includes substrate and described in The side wall of the edge extension of substrate, the substrate include outer surface and inner surface, and the substrate is offered through the inner surface With the installation through-hole of the outer surface；The support chip being fixedly connected with the inner surface, the support chip are included from the installation The supporting part that the periphery of through hole extends to the center of the installation through-hole；And case ring, the case ring are arranged at the installation It is fixedly connected in through hole and with the supporting part.And fingerprint sensor, the fingerprint sensor are contained in the case ring.

In some embodiments, the case ring with the supporting part company of fixation by way of be bonded and/or weld Connect.

In some embodiments, the support chip includes being fixed on the fixed part of the inner surface, the fixed part with The supporting part is fixedly connected.

In some embodiments, the case ring includes basic ring and is supported from the top of the basic ring is outwardly extending Portion, the support division include the supporting surface being connected with the lateral surface of the basic ring, the lateral surface of the supporting surface and the basic ring Angle be right angle or obtuse angle, the supporting surface is resisted against in the rear shell, to limit the case ring relative to the rear shell Move inward.

In some embodiments, the intersection of the side of the installation through-hole and the outer surface, which tilts, connects to be formed Confined planes, the confined planes match with the supporting surface, and the supporting surface is resisted against on the confined planes.

In some embodiments, the support division includes the guide ramp opposite with the supporting surface, and the guiding is oblique Tilted in facing to the basic ring and to the fingerprint sensor.

In some embodiments, the fingerprint sensor includes fingerprint recognition chip and encapsulates the fingerprint recognition chip Packaging body.

In some embodiments, the postposition fingerprint recognition component includes the master positioned at the corresponding side of the inner surface Circuit board, the flexible PCB are connected with the main circuit board.

In some embodiments, the orthographic projection of the main circuit board on the internal surface covers the fingerprint sensing Device.

The postposition fingerprint recognition component of the mobile terminal of the utility model embodiment including any of the above embodiment and Battery, the battery are located at the corresponding side of the inner surface, and the battery is electrically connected with the fingerprint sensor.

In the postposition fingerprint recognition component and mobile terminal of the utility model embodiment, since fingerprint sensor is arranged on In rear shell, fingerprint sensor is avoided to be set up in parallel in the vertical with display screen, so as to increase the size of display screen to improve The screen accounting of mobile terminal, is conducive to user experience.In addition, support chip can limit case ring movement.

The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description In become obvious, or recognized by the practice of the utility model.

Brief description of the drawings

In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination accompanying drawings below to embodiment It will be apparent and be readily appreciated that, wherein：

Fig. 1 is the schematic rear view of the mobile terminal of the utility model embodiment；

Fig. 2 be the mobile terminal of Fig. 1 II-II to schematic cross-section；

Fig. 3 is the front-view schematic diagram of the mobile terminal of the utility model embodiment.

Main element symbol description：

Postposition fingerprint recognition component 100, mobile terminal 200, display screen 201, viewing area 202, non-display area 204, flash of light Lamp 206；

Rear shell 10, substrate 11, side wall 12, outer surface 111, inner surface 112, installation through-hole 13, the side of installation through-hole 13 131st, confined planes 14；

Case ring 20, basic ring 21, the lateral surface 211 of basic ring 21, the medial surface 212 of basic ring 21, centre bore 213, support division 22nd, supporting surface 221, guide ramp 222, support edge 23；

Fingerprint sensor 30, packaging body 31, fingerprint recognition chip 32；

Support chip 40, supporting part 41, fixed part 42, protrusion 43；

Flexible PCB 50；

Stiffening plate 60；

Main circuit board 70.

Embodiment

The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein Same or similar label represents same or similar element or has the function of same or like element from beginning to end.Lead to below Cross the embodiment being described with reference to the drawings to be exemplary, be only used for explaining the utility model, and it is not intended that to this practicality New limitation.

In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for Described easy to description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second " is only used for description purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more The feature.In the description of the utility model, " multiple " are meant that two or more, unless otherwise clearly specific Limit.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can mechanically connect or be electrically connected or can mutually communicate；It can be directly connected, can also be in Between medium be indirectly connected, can be the interaction relationship of connection inside two elements or two elements.For this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model. In order to simplify the disclosure of the utility model, hereinafter the component and setting of specific examples are described.Certainly, they are only Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.

- Fig. 2 is please referred to Fig.1, the postposition fingerprint recognition component 100 of the utility model embodiment includes rear shell 10, decoration Circle 20, fingerprint sensor 30 and support chip 40.

Rear shell 10 includes the side wall 12 of the edge extension of substrate 11 and self-reference substrate 11, and substrate 11 includes outer surface 111 and interior Surface 112, substrate 11 offer the installation through-hole 13 through inner surface 112 and outer surface 111.

Support chip 40 is fixedly connected with inner surface 112.The periphery of support chip 40 including self installation through hole 13 is to installation through-hole The supporting part 41 of 13 center extension, case ring 20 are arranged in installation through-hole 13 and are fixedly connected with supporting part 41.For example, dress Decorative circle 20 is fixedly connected with supporting part 41 by bonding mode.And for example, case ring 20 and supporting part 41 be by welding It is fixedly connected.Fingerprint sensor 30 is arranged in case ring 20.

The postposition fingerprint recognition component 100 of the utility model embodiment can be applied to mobile terminal 200, mobile terminal 200 be, for example, the mobile terminals 200 such as mobile phone, intelligent wearable device or tablet computer.It is appreciated that mobile terminal 200 include but It is not limited to the example of present embodiment.

Incorporated by reference to Fig. 3, in the postposition fingerprint recognition component 100 and mobile terminal 200 of the utility model embodiment, by It is arranged in fingerprint sensor 30 in rear shell 10, avoids fingerprint sensor 30 from being set up in parallel in the vertical with display screen 201, so that The size of display screen 201 can be increased to improve the screen accounting of mobile terminal 200, be conducive to user experience.

Further, since support chip 40 is fixedly connected with rear shell 10, and case ring 20 is fixedly connected with support chip 40, from And can prevent that case ring 20 from moving relative to rear shell 10, be conducive to user press case ring 20 in fingerprint sensor 30 with into Row fingerprint recognition operates.

Specifically, in mobile terminal 200, front surface and the 201 corresponding region of display screen of mobile terminal 200 are display Area 202, other regions of the front surface of mobile terminal 200 are non-display area 204, and the screen accounting of mobile terminal 200 refers to shifting The ratio of the area and the area of non-display area 204 of the viewing area 202 of dynamic terminal 200.

The mobile terminal 200 of the utility model embodiment includes battery (not shown), and battery is located at inner surface 112 and corresponds to Side, battery is electrically connected with fingerprint sensor 30.In this way, battery, which can be mobile terminal 200, provides electric energy.Inner surface 112 Corresponding side is the space of 112 direction of inner surface.

Mobile terminal 200 further includes flash lamp 206, and flash lamp 206 is exposed by rear shell 10, and flash lamp 206 can be to move Dynamic 200 back of terminal supplement light, for example, user in nocturnalism, can use flash lamp 206 to illuminate the scene of surrounding. And for example, when user is shot using the camera of mobile terminal 200, flash lamp 206 can be shooting process light filling to improve movement The shooting quality of terminal 200.

Rear shell 10 is the covering of mobile terminal 200, and rear shell 10 covers the inner body of mobile terminal 200, for example, rear shell 10 can cover the parts such as battery.The material of rear shell 10 is, for example, plastics or metal.When the material of rear shell 10 is metal, rear shell 10 can open up the window passed through for electromagnetic wave, and window is, for example, gap.

Together with fingerprint sensor 30 can be adhesively fixed with case ring 20 by colloid.

Referring to Fig. 2, in some embodiments, case ring 20 include basic ring 21 and from the top of basic ring 21 to The support division 22 of outer extension, support division 22 include the supporting surface 221 being connected with the lateral surface 211 of basic ring 21, supporting surface 221 and base The angle of the lateral surface 211 of ring 21 is right angle or obtuse angle, and supporting surface 221 is resisted against in rear shell 10, opposite to limit case ring 20 Moved inward in rear shell 10.

In this way, since case ring 20 can be resisted against in rear shell 10 by supporting surface 221, so that it is opposite to limit case ring 20 Moved inward in rear shell 10, be conducive to user experience.

Specifically, the intersection of the side 131 of installation through-hole 13 and outer surface 11, which tilts, connects to form confined planes 14, limits Plane 14 matches with supporting surface 221, and supporting surface 221 is resisted against on confined planes 14.

In this way, confined planes 14 can allow case ring 20 to be housed in installation through-hole 13, so that mobile terminal 200 it is more beautiful.

In some embodiments, support division 22 includes the guide ramp 222 opposite with supporting surface 221, guide ramp 222 Tilted in towards basic ring 21 and to fingerprint sensor 30.

In this way, the finger that guide ramp 222 can guide user smoothly enters in basic ring 21 to carry out fingerprint recognition operation, can Improve the accuracy rate that user carries out fingerprint recognition operation.It is possible to further plate shinny metal layer in guide ramp 222 (such as layers of chrome), so that basic ring 21 is more beautiful.

Guide ramp 222 is ring surface, can so facilitate user to be inserted finger in basic ring 21 with pressing from all directions Fingerprint sensor 30, so as to carry out fingerprint recognition operation.

In some embodiments, bottom of the case ring 20 including the medial surface 212 from basic ring 21 extends into basic ring 21 Support edge 23, further, fingerprint sensor 30 is supported on support edge 23.In this way, support edge 23 can support and position Fingerprint sensor 30, so as to improve the efficiency of assembling of fingerprint sensor 30 and case ring 20.

In other words, fingerprint sensor 30 is supported on support edge 23., can when fingerprint sensor 30 is loaded in basic ring 21 To press fingerprint sensor 30 from top to bottom, if the position of fingerprint sensor 30 cannot move again, then it represents that fingerprint sensor 30 have been resisted against on support edge 23, and are installed into precalculated position.

It is appreciated that basic ring 21 is located in centre bore 213 formed with centre bore 213, support edge 23.Centre bore 213 can be with In right cylinder shape, in other words, the medial surface 212 of basic ring 21 is in plane, in order to which fingerprint sensor 30 rapidly loads centre bore 213 It is interior.

The material that centre bore 213 and support edge 23 can be removed on part by way of machining is formed, can also Formed by modes such as castings.

In order to ensure the intensity of case ring 20, it is preferred that the material of case ring 20 is metal, such as stainless steel material, from And meet the intensity requirement of case ring 20, also with corrosion resistance, improve the service life of case ring 20.Certainly, case ring 20 The other materials such as plastics can be used to be made.

In some embodiments, medial surface 212 of the support edge 23 perpendicular to basic ring 21.

In this way, support edge 23 is easily formed, the manufacture cost of basic ring 21 can be reduced.In addition, know when making postposition fingerprint During other component 100, support edge 23 is horizontally situated, and the medial surface 212 of basic ring 21 is located at vertical position so that with support edge 23 faces of fingerprint sensors 30 coordinated are horizontal plane, can so simplify the fingerprint sensor 30 that is supported on support edge 23 Structure.

In some embodiments, fingerprint sensor 30 includes packaging body 31 and fingerprint recognition chip 32,31 envelope of packaging body Fill fingerprint recognition chip 32.

Specifically, when user carries out the operation of unlocked by fingerprint mobile terminal 200, finger can be placed on and fingerprint recognition core 32 corresponding position of piece.The signal of fingerprint recognition chip 32, to gather the fingerprint pattern of identification user, will be used through packaging body 31 The fingerprint pattern at family is matched with the fingerprint pattern to prestore, if successful match, unlocks mobile terminal 200.

It is appreciated that the surface of fingerprint recognition chip 32 towards the finger of user is provided with sensor pixel array, with collection The fingerprint pattern of user.Packaging body 31, which encapsulates fingerprint recognition chip 32, can reduce sensor pixel array when gathering fingerprint pattern Influenced be subject to other interference signals, to improve the accuracy rate of identification.

It is pointed out that in present embodiment, fingerprint recognition chip 32 is silicon wafer (die), and packaging body 31 is plastic packaging Material, such as the material of packaging body 31 is resin.

In some embodiments, support chip 40 includes the fixed part 42 for being fixed on the inner surface 112 of substrate 11, fixed part 42 are fixedly connected with supporting part 41.

In other words, the periphery of installation through-hole 13 is first extended to outside the periphery of 40 self installation through hole 13 of support chip, then from peace The periphery for filling through hole 13 extends to the center of installation through-hole 13.

The inner surface 112 that support chip 40 is fixed on substrate 11 is conducive to support chip 40 and is fixedly connected with rear shell 10, for example, branch Blade 40 can be fixed on the inner surface 112 of substrate 11 by way of bonding.

In some embodiments, supporting part 41 forms the protrusion 43 that oriented case ring 20 protrudes, and case ring 20 is resisted against In protrusion 43.

In this way, protrusion 43 can increase the intensity of supporting part 41, when pressing fingerprint sensor 30, supporting part 41 is not variable Shape.In one example, support chip 40 is made of sheet metal, and protrusion 43 is the die mould of support chip 40.It is raised in present embodiment 43 are scattered in multiple raised 43 around the circumferentially-spaced of supporting part 41, such as in fig. 2, protrusion 43 is spaced apart into 2 protrusions 43.

In some embodiments, postposition fingerprint recognition component 100 includes the flexible PCB of connection fingerprint sensor 30 50。

In this way, flexible PCB 50 can cause fingerprint sensor 30 to carry out data with outer member (such as processor) Transmission, for example, fingerprint sensor 30 gather user fingerprint image after, outer member can to fingerprint image carry out feature recognition with Obtain preferable fingerprint image.

Fingerprint sensor 30 can be fixed on flexible PCB 50 by welding, for example, fingerprint sensor 30 On formed with the first pad, pass through the first pad and second formed with the second pad, fingerprint sensor 30 on flexible PCB 50 Pad solder, so as to be weldingly fixed on flexible PCB 50.Certainly, fingerprint sensor 30 can also pass through anisotropic conductive Glue (Anisotropic Conductive Film, ACF) is fixedly connected with flexible PCB 50.

In some embodiments, postposition fingerprint recognition component 100 includes the stiffening plate being fixed on flexible PCB 50 60, stiffening plate 60 and fingerprint sensor 30 are respectively positioned at the opposite both sides of flexible PCB 50.

In this way, the defects of stiffening plate 60 can prevent flexible PCB 50 from producing curling, so that can not be with fingerprint sensor 30 effectively connect.Therefore, stiffening plate 60 can cause the reliability higher that fingerprint sensor 30 works normally.

In one example, when putting fingerprint recognition component 100 after assembling, stiffening plate 60 first can be passed through into bonding Mode is fixed on flexible PCB 50, is then by welding fixed on fingerprint sensor 30 opposite with stiffening plate 60 Flexible PCB 50 side, to form a fingerprint identification module, the fingerprint sensor 30 in last fingerprint identification module It is fitted into case ring 20.

In some embodiments, postposition fingerprint recognition component 100 includes the main electricity positioned at 112 corresponding side of inner surface Road plate 70, flexible PCB 50 are connected with main circuit board 70.For example, flexible PCB 50 can pass through connector and main circuit board 70 connections.

In this way, fingerprint sensor 30 can be by flexible PCB 50 and main circuit board 70 into row data communication.Specifically, The elements such as processor (not shown), receiver (not shown) are provided with main circuit board 70, processor is used to handle mobile terminal 200 Various data, and control each element manipulation of mobile terminal 200, such as the display screen of processor control mobile terminal 200 The different content of 201 displays.

In some embodiments, orthographic projection covering fingerprint sensor 30 of the main circuit board 70 on inner surface 112.

In this way, main circuit board 70 and fingerprint sensor 30 is closer to the distance, is conducive to fingerprint sensor 30 and passes through flexible electrical Road plate 50 connects main circuit board 70.

In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation In book, schematic expression of the above terms is not necessarily referring to identical embodiment or example.Moreover, the specific spy of description Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.

While there has been shown and described that the embodiment of the utility model, those of ordinary skill in the art can manage Solution：A variety of to the progress of these embodiments can change in the case where not departing from the principle and objective of the utility model, change, Replace and modification, the scope of the utility model are limited by claim and its equivalent.

Claims (10)

1. A kind of 1. postposition fingerprint recognition component, it is characterised in that including：

   Rear shell, the rear shell include substrate and the side wall extended from the edge of the substrate, and the substrate includes outer surface and interior Surface, the substrate offer the installation through-hole through the inner surface and the outer surface；

   The support chip being fixedly connected with the inner surface, the support chip are included from the periphery of the installation through-hole to the installation The supporting part of the center extension of through hole；

   Case ring, the case ring are arranged in the installation through-hole and are fixedly connected with the supporting part；

   Fingerprint sensor, the fingerprint sensor are contained in the case ring.
2. 2. postposition fingerprint recognition component as claimed in claim 1, it is characterised in that the case ring passes through with the supporting part Bonding and/or the mode of welding are fixedly connected.
3. 3. postposition fingerprint recognition component as claimed in claim 1, it is characterised in that the support chip includes being fixed in described The fixed part on surface, the fixed part are fixedly connected with the supporting part.
4. 4. postposition fingerprint recognition component as claimed in claim 1, it is characterised in that the case ring includes basic ring and described in The outwardly extending support division in top of basic ring, the support division includes the supporting surface being connected with the lateral surface of the basic ring, described The angle of supporting surface and the lateral surface of the basic ring is right angle or obtuse angle, and the supporting surface is resisted against in the rear shell, with limitation The case ring is moved inward relative to the rear shell.
5. 5. postposition fingerprint recognition component as claimed in claim 4, it is characterised in that the side of the installation through-hole with it is described outer The intersection on surface tilts connection to form confined planes, and the confined planes match with the supporting surface, and the supporting surface is resisted against On the confined planes.
6. 6. postposition fingerprint recognition component as claimed in claim 4, it is characterised in that the support division includes and the supporting surface Opposite guide ramp, the guide ramp are tilted towards in the basic ring and to the fingerprint sensor.
7. 7. postposition fingerprint recognition component as claimed in claim 1, it is characterised in that the fingerprint sensor includes fingerprint recognition Chip and the packaging body for encapsulating the fingerprint recognition chip.
8. 8. postposition fingerprint recognition component as claimed in claim 1, it is characterised in that the postposition fingerprint recognition component includes connecting Connect the flexible PCB of the fingerprint sensor and the main circuit board positioned at the corresponding side of the inner surface, the flexible circuit Plate is connected with the main circuit board.
9. 9. postposition fingerprint recognition component as claimed in claim 8, it is characterised in that the main circuit board is on the internal surface Orthographic projection cover the fingerprint sensor.
10. A kind of 10. mobile terminal, it is characterised in that including：

    Postposition fingerprint recognition component described in claim 1-9 any one；With

    Battery, the battery are located at the corresponding side of the inner surface, and the battery is electrically connected with the fingerprint sensor.