CN212181482U

CN212181482U - Fingerprint identification module and equipment

Info

Publication number: CN212181482U
Application number: CN202020904652.9U
Authority: CN
Inventors: 梅春兵; 燕晋武; 杨佳
Original assignee: Hangzhou Synochip Data Security Technology Co ltd
Current assignee: Hangzhou Synochip Data Security Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-12-18
Anticipated expiration: 2030-05-26

Abstract

A fingerprint identification module comprises a sensor, an FPC (flexible printed circuit), a tact switch and electronic components, wherein the sensor, the tact switch and the electronic components are all fixed on the FPC, the FPC penetrates through an upper cover and then is bent and respectively fixed with the upper side and the lower side of the cover surface of the upper cover, and the sensor and the tact switch are arranged in a positive and negative opposite mode; the touch switch is characterized in that a bottom shell is connected to the lower portion of the upper cover, an accommodating space for accommodating the touch switch is formed between the bottom shell and the accommodating space, the touch surface of the touch switch is arranged in contact with the bottom surface of the bottom shell, a metal ring is mounted on the FPC, and the metal ring covers the sensor. The utility model discloses set up mounting structure that upper cover and drain pan are connected and are formed and fix the sensor and touch the switch, guarantee to press and can not take place crooked.

Description

Fingerprint identification module and equipment

Technical Field

The utility model belongs to the technical field of the discernment, concretely relates to fingerprint identification module and equipment.

Background

Fingerprint identification is a branch of biological identification, is used for collecting fingerprint texture characteristics, and is mainly applied to locks. When the key is applied to a computer on-off key, the key has the main function of executing system switching and restarting; when a user logs in a user account at a computer end, a password needs to be input, and the track and the password of the input password can be stolen by others, so that the data and property safety is influenced, and the security is ensured by adopting fingerprint identification login.

The existing fingerprint identification module is shown in figure 1 and comprises a sensor 1 ', an FPC 2', a light touch switch 4 ', an electronic device 3', auxiliary materials and other parts; the fingerprint sensor identifies fingerprint data and exchanges data with the outside through the connector; after the FPC2 ' is folded, the bottom is a tact switch 4 ' and the upper part is a sensor 1 '. When the sensor 1 'is pressed by external force, the button of the tact switch 4' is pressed into the base to trigger the circuit to be conducted. When the external force is removed, the button of the tact switch 4' is pushed out by the elastic sheet in the base, and the circuit is disconnected. The fingerprint identification module is lack of an installation structure, and a customer needs to design the fingerprint identification module additionally; the split installation mode is inconvenient to operate. The edge is not provided with a supporting structure, and the pressing can have deflection risk. The whole body has no elastic support and has abnormal sound when shaking.

Disclosure of Invention

For solving the above-mentioned problem that prior art exists, the utility model provides a reduce and press crooked phenomenon, reduce installation error risk, reduce fingerprint identification module and equipment of abnormal sound phenomenon.

The utility model adopts the technical proposal that:

the utility model provides a fingerprint identification module, includes sensor, FPC, dabs switch, electronic components, the sensor, dabs switch, electronic components and all fix on FPC its characterized in that: the FPC penetrates through an upper cover and then is bent and fixed with the upper side and the lower side of the cover surface of the upper cover respectively, and the sensor and the tact switch are arranged oppositely; the touch switch is characterized in that a bottom shell is connected to the lower portion of the upper cover, an accommodating space for accommodating the touch switch is formed between the bottom shell and the accommodating space, the touch surface of the touch switch is arranged in contact with the bottom surface of the bottom shell, a metal ring is mounted on the FPC, and the metal ring covers the sensor. The utility model discloses set up mounting structure that upper cover and drain pan are connected and are formed and fix the sensor and touch the switch, guarantee to press and can not take place crooked.

Further, the metal ring is provided with a skirt edge, the size of the skirt edge is larger than 1mm, the connection reliability of the metal ring and the FPC is guaranteed, and the front IP protection grade can be improved to IP67 through structural adhesive.

Furthermore, interference elastic sheets are symmetrically arranged in the upper cover and are in contact with the bottom surface of the bottom shell. The interference shell fragment and the drain pan interference fit of upper cover withstand the drain pan for the drain pan does not rock, reduces the abnormal sound risk.

Furthermore, the upper cover is connected with the bottom shell through a buckle, a buckle groove is formed in the upper cover, and a buckle is arranged on the bottom shell corresponding to the buckle groove.

Furthermore, the upper cover is a stamping metal upper cover, and notches through which the FPC is bent are symmetrically formed in the wall surface of the upper cover.

Furthermore, the bottom shell is an injection molding bottom shell, and an installation guide edge is arranged at a position corresponding to the notch, so that the bottom shell and the upper cover can be assembled conveniently.

Furthermore, a reinforcing rib is arranged between the wall surface and the bottom surface of the bottom shell, so that the deformation risk of the bottom shell during pressing is reduced.

Furthermore, be equipped with on the upper surface of drain pan and prevent excessive pressure boss, when drain pan and upper shell lock installation, play and prevent to exert oneself and excessively make the upper cover warp.

Furthermore, the bilateral symmetry of drain pan is provided with fixed ear, and the customer of being convenient for installs on equipment.

A fingerprint recognition device characterized by: including a fingerprint identification module of foretell.

The utility model has the advantages that: the phenomenon of pressing skew is reduced, the risk of installation errors is reduced, the phenomenon of abnormal sound is reduced, and the installation by customers is facilitated.

Drawings

FIG. 1 is a schematic diagram of a conventional fingerprint recognition module;

fig. 2 is a schematic cross-sectional view of the fingerprint recognition module of the present invention;

fig. 3 is an exploded schematic view of the circular structure of the fingerprint recognition module of the present invention;

fig. 4 is a schematic structural view of the circular upper cover of the present invention;

fig. 5 is a schematic structural view of the circular bottom case of the present invention;

fig. 6 is an exploded schematic view of the square structure of the fingerprint recognition module of the present invention;

fig. 7 is a schematic structural view of a square upper cover of the present invention;

fig. 8 is a schematic structural view of a square bottom case of the present invention;

in the figure, 1, a sensor, 2, a metal ring, 3, FPC, 4, an upper cover, 41, a clamping groove, 42, an interference elastic sheet, 43, a notch, 5, a tact switch, 6, a bottom shell, 61, a buckle, 62, a reinforcing rib, 63, an installation guide edge, 64, an overvoltage-preventing boss, 7, an electronic component, 8 and a hinged end.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Interpretation of professional terms

1, FPC: a Flexible Printed Circuit (FPC) is a highly reliable and excellent Flexible Printed Circuit board made of polyimide or polyester film as a base material. The high-density light-weight LED lamp has the characteristics of high wiring density, light weight, thin thickness and good bending property.

2. Fingerprint sensor: also known as a fingerprint Sensor, is a key device for realizing automatic fingerprint acquisition.

3. And (3) lightly touching a switch: when the pressure is removed, the switch is switched off, and the internal structure of the switch is switched on and off by the stress change of the metal elastic sheet. The tact switch is composed of: the embedded part, the base, the elastic sheet, the button and the cover plate.

IP (IP) protection level system is drafted by IEC (International ELECTROTECHNICAL Commission) and the electric appliances are classified according to their dust-proof and moisture-proof characteristics. The IP protection grade is composed of two numbers, wherein the 1 st number represents the grade of the electrical appliance for preventing dust and foreign matters from entering, the 2 nd number represents the airtight degree of the electrical appliance for preventing moisture and water from entering, and the larger the number is, the higher the protection grade is.

Example one

Referring to fig. 2 to 8, the embodiment provides a fingerprint identification module, which includes a sensor 1, an FPC 3, a tact switch 5, an electronic component 7, a metal ring 2, an upper cover 4, a bottom case 6, and an auxiliary material, where the tact switch 5, the sensor 1, the electronic component 7, and a hinge end 8 are sequentially fixed on the FPC 3, and the FPC 3 passes through the upper cover 4, is bent and fixed to upper and lower sides of a cover surface of the upper cover 4 by double-sided adhesive tape, so that the sensor 1 and the tact switch 5 are arranged in a manner of opposing in the forward and reverse directions; a bottom shell 6 is connected below the upper cover 4, an accommodating space for accommodating the tact switch 5 is formed between the bottom shell 6 and the bottom shell 6, the contact surface of the tact switch 5 is arranged in contact with the bottom surface of the bottom shell 6, a metal ring 2 is installed on the FPC 3, and the metal ring 2 covers the sensor 1. The utility model discloses set up upper cover 4 and drain pan 6 and connected the mounting structure who forms and come fixed sensor 1 and dab switch 5, guarantee to press and can not take place crooked.

This embodiment the becket 2 is provided with the shirt rim, the size of shirt rim is greater than 1mm, guarantees the reliability that becket 2 and FPC 3 are connected, and can promote positive IP protection level to IP67 through the structure glue.

In this embodiment, the upper cover 4 is a stamped metal upper cover, and the wall surface of the upper cover is symmetrically provided with notches 43 through which the FPC 3 is bent. The upper cover 4 is internally provided with interference elastic sheets 42 which are symmetrically arranged, and the interference elastic sheets 42 are in contact with the bottom surface of the bottom shell 6. The interference elastic sheet 42 of the upper cover 4 is in interference fit with the bottom shell 6 to prop against the bottom shell 6, so that the bottom shell 6 does not shake, and abnormal sound risks are reduced.

In this embodiment, the bottom case 6 is an injection molded bottom case, and the outer side of the wall surface corresponding to the notch 43 is provided with a mounting guiding edge for facilitating the assembly of the bottom case 6 and the upper cover 4. A plurality of reinforcing ribs 62 are uniformly distributed between the wall surface and the bottom surface of the bottom shell 6, so that the deformation risk of the bottom shell 6 during pressing is reduced. The upper surface of the bottom shell 6 is provided with an overpressure-proof boss 64, which plays a role in preventing the upper cover 4 from deforming due to excessive force when the bottom shell 6 and the upper cover 4 are installed in a matching way. The two sides of the bottom shell 6 are symmetrically provided with fixing lugs 65, so that a client can conveniently install the device.

In this embodiment, the upper cover 4 and the bottom case 6 are connected by a snap, 4 snap grooves 41 are formed between the wall surface and the cover surface of the upper cover 4, and a snap 61 is arranged on the bottom case 6 at a position corresponding to the outer side of the wall surface of the snap groove 41. The catch 61 engages with the catch groove 41 so that the bottom case 6 and the upper cover 4 cannot be separated. Of course, the buckling groove can be arranged on the bottom shell, and the buckle is arranged on the upper cover. The same connection between the upper lid 4 and the bottom shell 6 can be achieved by other means, such as a screw connection.

Referring to fig. 3 to 5, the metal ring 2, the sensor 1, the upper cover 4 and the bottom case 6 may have a circular structure. Referring to fig. 6-8, the metal ring 2, the sensor 1, the upper cover 4, and the bottom case 6 may also be square.

The utility model discloses during the installation, FPC 3 surface subsides sensor 1, becket 2, electronic components 7, dabs behind the switch 5, passes upper cover 4 and bends, makes sensor 1 just anti opposite with dabbing switch 5 after pasting through the double faced adhesive tape, packs in the buckle with drain pan 6 again and connects in the upper cover 4.

The utility model discloses reduce and press crooked phenomenon, reduce installation mistake risk, reduce abnormal sound phenomenon, the customer installation of being convenient for.

Example two

The embodiment provides fingerprint identification equipment, which comprises a fingerprint identification module according to the first embodiment, wherein the fingerprint identification module comprises a sensor 1, an FPC 3, a tact switch 5, an electronic component 7, a metal ring 2, an upper cover 4, a bottom shell 6 and auxiliary materials, the tact switch 5, the sensor 1, the electronic component 7 and a hinged end 8 are sequentially fixed on the FPC 3, the FPC 3 penetrates through the upper cover 4 and then is bent and is respectively fixed with the upper side and the lower side of the cover surface of the upper cover 4 through double-sided adhesive tapes, so that the sensor 1 and the tact switch 5 are arranged in a positive-negative opposite mode; a bottom shell 6 is connected below the upper cover 4, an accommodating space for accommodating the tact switch 5 is formed between the bottom shell 6 and the bottom shell 6, the contact surface of the tact switch 5 is arranged in contact with the bottom surface of the bottom shell 6, a metal ring 2 is installed on the FPC 3, and the metal ring 2 covers the sensor 1. The utility model discloses set up upper cover 4 and drain pan 6 and connected the mounting structure who forms and come fixed sensor 1 and dab switch 5, guarantee to press and can not take place crooked.

The utility model discloses during the installation, FPC 3 surface pastes sensor 1, becket 2, electronic components 7 back, passes upper cover 4 and bends, makes sensor 1 and dabs switch 5 just anti after pasting through the double faced adhesive tape, fills in the buckle with drain pan 6 again and connects in upper cover 4.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.

Claims

1. The utility model provides a fingerprint identification module, includes sensor, FPC, dabs switch, electronic components, the sensor, dabs switch, electronic components and all fix on FPC its characterized in that: the FPC penetrates through an upper cover and then is bent and fixed with the upper side and the lower side of the cover surface of the upper cover respectively, and the sensor and the tact switch are arranged oppositely; the touch switch is characterized in that a bottom shell is connected to the lower portion of the upper cover, an accommodating space for accommodating the touch switch is formed between the bottom shell and the accommodating space, the touch surface of the touch switch is arranged in contact with the bottom surface of the bottom shell, a metal ring is mounted on the FPC, and the metal ring covers the sensor.

2. The fingerprint identification module of claim 1, wherein: the metal ring is provided with a skirt edge, and the size of the skirt edge is larger than 1 mm.

3. The fingerprint identification module of claim 1, wherein: the upper cover is internally provided with interference elastic sheets which are symmetrically arranged, and the interference elastic sheets are in contact with the bottom surface of the bottom shell.

4. The fingerprint identification module of claim 1, wherein: the upper cover is connected with the bottom shell through a buckle, a buckle groove is formed in the upper cover, and a buckle is arranged on the bottom shell corresponding to the buckle groove.

5. The fingerprint identification module of claim 1, wherein: the upper cover is a stamping metal upper cover, and notches for bending and penetrating the FPC are symmetrically formed in the wall surface of the upper cover.

6. The fingerprint identification module of claim 5, wherein: the bottom shell is an injection molding bottom shell, and an installation guide edge is arranged at a position corresponding to the notch.

7. The fingerprint identification module of claim 1, wherein: and reinforcing ribs are arranged between the wall surface and the bottom surface of the bottom shell.

8. The fingerprint identification module of claim 1, wherein: and an overpressure-preventing boss is arranged on the upper surface of the bottom shell.

9. The fingerprint identification module of claim 1, wherein: the both sides symmetry of drain pan is provided with fixed ear.

10. A fingerprint recognition device characterized by: a fingerprint recognition module comprising any one of claims 1-9.