CN207337422U - 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, case ring and fingerprint sensor.Rear shell include substrate and and self-reference substrate edge extension side wall, substrate includes outer surface and inner surface, and substrate offers the installation through-hole through the inner surface and the outer surface, and the side of installation through-hole and the intersection of outer surface form fluted；The butting section that case ring includes the basic ring being located in installation through-hole and the top from basic ring extends to groove, butting section is resisted against the bottom surface of groove.Fingerprint sensor is contained in basic 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 on the glass cover-plate 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, case ring and fingerprint sensor.It is described Rear shell include substrate and and the side wall that extends from the edge of the substrate, the substrate include outer surface and inner surface, the base Plate offers the installation through-hole through the inner surface and the outer surface, side and the outer surface of the installation through-hole Intersection forms fluted；The case ring includes the basic ring being located in the installation through-hole and from the top of the basic ring to institute The butting section of groove extension is stated, the butting section is resisted against the bottom surface of the groove.The fingerprint sensor is contained in the base In ring.

In some embodiments, the butting section includes the abutment face being connected with the lateral surface of the basic ring, described to support Vertical with the lateral surface of the basic ring by face, the abutment face is against the bottom surface of the groove.

In some embodiments, the butting section is included towards in the basic ring and inclined to the fingerprint sensor Guide ramp, the guide ramp are disposed opposite to each other with the abutment face.

In some embodiments, the postposition fingerprint recognition component includes the flexible circuit for connecting the fingerprint sensor Plate.

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

In some embodiments, the stiffening plate is contained in the installation through-hole, the stiffening plate and the substrate It is adhesively fixed.

In some embodiments, the case ring is supported on the stiffening plate.

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 mobile terminal of the utility model embodiment includes the postposition fingerprint recognition group described in any of the above embodiment Part 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.

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：

It is postposition fingerprint recognition component 100, the first colloid 102, the second colloid 104, mobile terminal 200, display screen 201, aobvious Show area 202, non-display area 204, flash lamp 206；

Rear shell 10, substrate 11, outer surface 111, inner surface 112, side wall 12, installation through-hole 13, the side of installation through-hole 13 131st, the bottom surface 141 of groove 14, groove 14；

Case ring 20, basic ring 21, the lateral surface 211 of basic ring 21, butting section 22, abutment face 221, guide ramp 222；

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

Flexible PCB 40；

Stiffening plate 50；

Main circuit board 60.

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.

Please refer to Fig.1 and Fig. 2, the postposition fingerprint recognition component 100 of the utility model embodiment include rear shell 10, decoration Circle 20 and fingerprint sensor 30.

Rear shell 10 include substrate 11 and and self-reference substrate 11 edge extension side wall 12, substrate 11 includes 111 He of outer surface Inner surface 112, substrate 11 offer the installation through-hole 13 through inner surface 112 and outer surface 111, the side of installation through-hole 13 131 form fluted 14 with the intersection of outer surface 111.

Case ring 20 includes the basic ring 21 being located in installation through-hole 13 and what is extended from the top of basic ring 21 to groove 14 support Relying part 22, butting section 22 are resisted against the bottom surface 141 of groove 14.Fingerprint sensor 30 is contained in basic ring 21.

Incorporated by reference to Fig. 3, the postposition fingerprint recognition component 100 of the utility model embodiment can be applied to mobile terminal 200, Mobile terminal 200 is, for example, the electronic devices such as mobile phone, intelligent wearable device or tablet computer.It is appreciated that mobile terminal 200 wraps Include but be 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, due to Fingerprint sensor 30 is arranged in rear shell 10, avoids fingerprint sensor 30 from being set up in parallel in the vertical with display screen 201, so as to The screen accounting of mobile terminal 200 is improved to increase the size of display screen 201, is conducive to user experience.

In addition, butting section 22 is resisted against the bottom surface 141 of groove 14, it can so limit case ring 20 and be moved into rear shell 10 It is dynamic, prevent that case ring 20 moves and influences to refer to user when pressing fingerprint sensor 30 and case ring 20 to carry out fingerprint recognition The effect of line identification.

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.

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.In addition, the decoration of metal Circle 20 can prevent electromagnetic wave from causing to do to the signal of fingerprint sensor 30 with the electromagnetic wave around shield fingerprints sensor 30 Disturb.Case ring 20 can be adhesively fixed by viscose glue and rear shell 10.

In present embodiment, basic ring 21 is cylindrical.Certainly, in other embodiments, the cross section of basic ring 21 can be with In other shapes, such as the shape such as side's annular or oval ring.Therefore, the example of the shape of the basic ring 21 of present embodiment is not It is understood that as the limitation to the utility model.

In present embodiment, fingerprint sensor 30 can be capacitive fingerprint sensing device, or ultrasonic type fingerprint Sensor.

Referring to Fig. 2, in some embodiments, butting section 22 includes what is be connected with the lateral surface 211 of basic ring 21 Abutment face 221, abutment face 221 is vertical with the lateral surface 211 of basic ring 21, and abutment face 221 is against the bottom surface 141 of groove 14.

In this way, abutment face 221 can stably be resisted against the bottom surface 141 of groove 14.It is pointed out that present embodiment In, contacted against against two elements are also referred to, can also refer to that two elements are supported by the way that other objects are contactless Lean on.For example, in present embodiment, abutment face 221 is by the first colloid 102 against the bottom surface 141 of groove 14.

In some embodiments, butting section 22 includes guide ramp 222, guide ramp 222 towards in basic ring 21 and to Fingerprint sensor 30 tilts, and guide ramp 222 is disposed opposite to each other with abutment face 221.

In this way, the finger that guide ramp 222 can guide user smoothly enters in case ring 20 to carry out fingerprint recognition operation, The accuracy rate that user carries out fingerprint recognition operation can be improved.Further, shinny metal layer can be plated in guide ramp 222 (such as layers of chrome), so that case ring 20 is more beautiful.

It is appreciated that guide ramp 222 is ring surface, so it can facilitate user that finger is inserted case ring from all directions To press fingerprint sensor 30 in 20, so as to carry out fingerprint recognition operation.

In some embodiments, fingerprint sensor 30 includes fingerprint recognition chip 31 and encapsulates fingerprint recognition chip 31 Packaging body 32.

Specifically, when user carries out the operation of unlocked by fingerprint mobile terminal 200, finger can be placed on and fingerprint recognition core 31 corresponding position of piece.The signal of fingerprint recognition chip 31, to gather the fingerprint pattern of identification user, will be used through packaging body 32 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 31 towards the finger of user is provided with sensor pixel array, with collection The fingerprint pattern of user.Packaging body 32, which encapsulates fingerprint recognition chip 31, 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 31 is silicon wafer (die), and packaging body 32 is plastic packaging Material, such as the material of packaging body 32 is resin.

In some embodiments, postposition fingerprint recognition component 100 includes the flexible PCB of connection fingerprint sensor 30 40。

In this way, flexible PCB 40 can cause fingerprint sensor 30 to carry out data biography with outer member (such as processor) Defeated, for example, after fingerprint sensor 30 gathers user fingerprint image, outer member can carry out feature recognition to obtain to fingerprint image Obtain preferable fingerprint image.

Fingerprint sensor 30 can be fixed on flexible PCB 40 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 40 Pad solder, so as to be weldingly fixed on flexible PCB 40.Certainly, fingerprint sensor 30 can also pass through anisotropic conductive Glue (Anisotropic Conductive Film, ACF) is fixedly connected with flexible PCB 40.

In some embodiments, postposition fingerprint recognition component 100 includes the stiffening plate 50 for being fixed on flexible PCB 40, Stiffening plate 50 and fingerprint sensor 30 are respectively positioned at the opposite both sides of flexible PCB 40.

In this way, the defects of stiffening plate 50 can prevent flexible PCB 40 from producing curling, so that can not be with fingerprint sensor 30 effectively connect.Therefore, stiffening plate 50 can cause the reliability higher that fingerprint sensor 30 works normally.

In one example, when putting fingerprint recognition component 100 after assembling, the side that stiffening plate 50 first can be passed through into bonding Formula is fixed on flexible PCB 40, is then by welding fixed on fingerprint sensor 30 opposite with stiffening plate 50 The side of flexible PCB 40, to form a fingerprint identification module, the fingerprint sensor 30 in last fingerprint identification module is set Put in case ring 20.

In some embodiments, stiffening plate 50 is contained in installation through-hole 13, and stiffening plate 50 is adhesively fixed with substrate 11.

In this way, stiffening plate 50 is housed in the integral thickness that can reduce rear cover fingerprint recognition component in installation through-hole 13, mend Strong plate 50 is adhesively fixed with substrate 11 and can further prevent fingerprint sensor 30 from being moved relative to substrate 11.

In present embodiment, stiffening plate 50 is adhesively fixed by the second colloid 104 with substrate 11.

In some embodiments, case ring 20 is supported on stiffening plate 50.In this way, the supporting point increase of case ring 20, The stability of case ring 20 can be further improved.

In some embodiments, postposition fingerprint recognition component 100 includes the main electricity positioned at 112 corresponding side of inner surface Road plate 60, flexible PCB 40 are connected with main circuit board 60.For example, flexible PCB 40 can pass through connector and main circuit board 60 connections.

In this way, fingerprint sensor 30 can be by flexible PCB 40 and main circuit board 60 into row data communication.Specifically, The elements such as processor (not shown), receiver (not shown) are provided with main circuit board 60, 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 60 on inner surface 112.

In this way, main circuit board 60 and fingerprint sensor 30 is closer to the distance, is conducive to fingerprint sensor 30 and passes through flexible electrical Road plate 40 connects main circuit board 60.

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 (9)

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

   Rear shell, the rear shell include substrate and and the side wall that extends from the edge of the substrate, the substrate include outer surface and Inner surface, the substrate offer the installation through-hole through the inner surface and the outer surface, the side of the installation through-hole Formed with the intersection of the outer surface fluted；

   Case ring, the case ring include the basic ring being located in the installation through-hole and from the tops of the basic ring to the groove The butting section of extension, the butting section are resisted against the bottom surface of the groove；With

   Fingerprint sensor, the fingerprint sensor are contained in the basic ring；

   The butting section includes the abutment face being connected with the lateral surface of the basic ring, the lateral surface of the abutment face and the basic ring Vertically, the abutment face is against the bottom surface of the groove.
2. 2. postposition fingerprint recognition component as claimed in claim 1, it is characterised in that the butting section is included towards the basic ring It is interior and be disposed opposite to each other to the inclined guide ramp of the fingerprint sensor, the guide ramp with the abutment face.
3. 3. 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.
4. 4. postposition fingerprint recognition component as claimed in claim 3, it is characterised in that the postposition fingerprint recognition component includes solid The stiffening plate of the flexible PCB is scheduled on, the stiffening plate is located at the flexible PCB phase respectively with the fingerprint sensor The both sides of the back of the body.
5. 5. postposition fingerprint recognition component as claimed in claim 4, it is characterised in that it is logical that the stiffening plate is contained in the installation In hole, the stiffening plate is fixed with the substrate bonding.
6. 6. postposition fingerprint recognition component as claimed in claim 4, it is characterised in that the case ring is supported on the stiffening plate On.
7. 7. postposition fingerprint recognition component as claimed in claim 3, it is characterised in that the postposition fingerprint recognition component includes position Main circuit board in the corresponding side of the inner surface, the flexible PCB are connected with the main circuit board.
8. 8. postposition fingerprint recognition component as claimed in claim 7, it is characterised in that the main circuit board is on the internal surface Orthographic projection cover the fingerprint sensor.
9. A kind of 9. mobile terminal, it is characterised in that including：

   Claim 1-8 any one of them postposition fingerprint recognition components；With

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