Fingerprint identification module and electronic equipment

By using a rigid-flex PCB and fasteners to connect the fingerprint recognition module, the problems of complex production and large thickness of the fingerprint recognition module are solved, achieving a thinner and lighter module with reduced costs, thus adapting to the trend of thinner and lighter electronic products.

CN223566175UActive Publication Date: 2025-11-18KUNSHAN QTECH BIOLOGICAL RECOGNITION TECH LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423099287.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-18
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing fingerprint recognition modules are complex to manufacture, thick, and costly, making them difficult to adapt to the trend of thinner and lighter electronic products. Furthermore, their cumbersome manufacturing processes limit technological optimization and application promotion.

Method used

A rigid-flex PCB (combining FPC and PCB) is used instead of a reinforcing board. The fingerprint sensor and fingerprint recognition motherboard are connected through a first connecting board and a second connecting board. Fixing components are used to snap the module into the electronic device body, simplifying the process and reducing module thickness and production costs.

Benefits of technology

It simplifies the production process, reduces production costs, saves internal space in electronic devices, improves production efficiency, and meets the demand for thinner and lighter electronic products.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223566175U_ABST
    Figure CN223566175U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of electronic equipment, and discloses a fingerprint identification module which comprises a fingerprint sensor, a connecting assembly and a fingerprint identification mainboard, the connecting assembly comprises a first connecting plate and a second connecting plate, one side of the first connecting plate is connected with the fingerprint sensor, the other side of the first connecting plate is connected with one side of the fingerprint identification mainboard, and the second connecting plate is connected with the fingerprint sensor. And the other side of the fingerprint identification mainboard is connected with the second connecting plate. According to the structural design, a reinforcing structure is omitted, the module thickness is reduced, the technological process is optimized, and the production efficiency is improved. The utility model further discloses the electronic equipment.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a fingerprint identification module and an electronic equipment. BACKGROUND

[0002] With the progress of science and technology, the design of electronic products gradually develops towards lightness and comfort, and the overall structure space is continuously compressed. In order to meet the needs of terminal users for electronic products, the design of side fingerprint identification modules also evolves towards narrower and thinner directions. However, the current production technology of fingerprint identification modules has certain limitations. The traditional side fingerprint identification module is usually composed of a fingerprint chip, a flexible circuit board, a 3D steel reinforcing plate, a 2D steel reinforcing plate and a key connecting structure. In the processing process, the flexible circuit board needs to cover both ends of the 3D steel reinforcing plate through multiple processes such as winding and folding. This design not only complicates the process, increases the module thickness, but also puts higher requirements on the overall assembly space, which is difficult to adapt to the trend of continuous lightness of electronic products. In addition, the complex production process leads to complicated process, more time-consuming and higher production cost, which further limits the optimization and application of technology. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above problems, the utility model provides a fingerprint identification module and an electronic equipment.

[0004] The utility model provides a fingerprint identification module, including fingerprint sensor, connecting assembly and fingerprint identification mainboard, the connecting assembly includes first connecting plate and second connecting plate, one side of first connecting plate is connected with fingerprint sensor, the other side is connected with one side of fingerprint identification mainboard, the other side of fingerprint identification mainboard is connected with second connecting plate.

[0005] In an embodiment, in a first direction parallel to the fingerprint identification mainboard, the length of the first connecting plate is greater than the length of the second connecting plate.

[0006] In an embodiment, the fingerprint identification module further comprises at least one fixing member, the fixing member is arranged on the side of the second connecting plate away from the fingerprint sensor.

[0007] In an embodiment, in a first direction parallel to the fingerprint identification mainboard, at least one end of the fixing member exceeds the edge of the second connecting plate, and forms a clamping gap with the fingerprint identification mainboard for connecting with the body of the electronic equipment. The fixing member is clamped with the body of the electronic equipment through the clamping gap, and the fixing member supports the fingerprint identification module through the body of the electronic equipment.

[0008] In an embodiment, at least one end of the fixing member exceeds the edge of the second connecting plate in the first direction parallel to the fingerprint identification main plate.

[0009] In an embodiment, the fixing member is two and is arranged at two ends of the side of the second connecting plate away from the fingerprint sensor, and at least one end of the fixing member exceeds the edge of the second connecting plate in the first direction parallel to the fingerprint identification main plate.

[0010] In an embodiment, the fingerprint identification module further comprises an unlocking button for unlocking the electronic device, and the unlocking button is arranged on the second connecting plate.

[0011] In an embodiment, the unlocking button comprises a button plate and at least one key cap, one side of the button plate is connected with the second connecting plate, and the other side is connected with the key cap.

[0012] In an embodiment, the fingerprint identification main plate comprises an interaction section, an extension section and a connecting section, the interaction section is arranged between the first connecting plate and the second connecting plate, one end of the extension section is connected with the interaction section, the other end is connected with the connecting section, and the connecting section is provided with an electrical connector.

[0013] Another aspect of the embodiment of the present application further provides an electronic device comprising an electronic device body and the fingerprint identification module provided by the foregoing embodiment, the fingerprint identification module is fixed on the electronic device body and is electrically connected with the electronic device body.

[0014] The utility model discloses beneficial effect lies in: through first connecting plate and second connecting plate have replaced the reinforcing plate, on one hand, the thickness of fingerprint identification module has been reduced, is favorable to save the internal space of electronic device, on the other hand, need not to be around and to be folded and a plurality of procedures, and the technological process is simpler, improves production efficiency, and reduces production cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be simply introduced to the drawing needed to be used in the embodiment, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be seen as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0016] Figure 1 It is a top view schematic diagram of the fingerprint identification module of an embodiment of the utility model.

[0017] Figure 2 It is a side view schematic diagram of the fingerprint identification module of an embodiment of the utility model.

[0018] Figure 3 For Figure 2 The structure enlarged schematic view at position A in the middle.

[0019] Figure 4 For the bottom view schematic view of the fingerprint identification module of an embodiment of the utility model.

[0020] Figure 5 For Figure 4 The structure enlarged schematic view at position B in the middle. DETAILED DESCRIPTION

[0021] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the description of the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0022] In the description of the utility model, unless explicitly defined and limited, the terms "arrange", "install", "connect" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the utility model product when it is usually placed, which is only for the convenience of description and simplification of description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] The terms "first", "second", "third" and the like are only for distinguishing similar attributes of elements, and are not intended to indicate or imply relative importance or a specific order.

[0025] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to containing the listed elements, other elements not explicitly listed can also be contained.

[0026] Please refer to Figures 1-5It shows that the fingerprint identification module is provided in the embodiment of the utility model, including fingerprint sensor 1, connecting assembly 2 and fingerprint identification mainboard 3, connecting assembly 2 includes first connecting plate 21 and second connecting plate 22, one side of first connecting plate 21 is connected with fingerprint sensor 1, the other side is connected with one side of fingerprint identification mainboard 3, the other side of fingerprint identification mainboard 3 is connected with second connecting plate 22.

[0027] As Figures 1-3 Shown in the embodiment, fingerprint sensor 1 is fingerprint sensing chip, is used to gather user fingerprint, fingerprint identification mainboard 3 is flexible circuit board, can transmit the fingerprint information gathered by fingerprint sensor 1 to the central control structure of electronic equipment, connecting assembly 2 is soft and hard combination board, namely flexible circuit board (FPC) and rigid circuit board (PCB), after pressing and other processes, it is combined together according to relevant process requirements, forms the circuit board with the characteristics of FPC and PCB. First connecting plate 21 and second connecting plate 22 are soft and hard combination board, fingerprint identification mainboard 3 is arranged between first connecting plate 21 and second connecting plate 22, and is electrically connected with fingerprint sensor 1 through first connecting plate 21. Because soft and hard combination board has certain flexible area and certain rigid area, it can replace reinforcing structure, meet the strength requirement, prolong the service life of fingerprint sensor 1, effectively reduce the thickness of fingerprint identification module, help to save the internal space of electronic equipment, do not affect the structural strength of electronic equipment body, also can improve the performance of fingerprint identification module, and also save multiple processes such as winding and folding in the processing process, the process flow is simpler, improves production efficiency and reduces production cost.

[0028] In an embodiment, as Figure 2 Shown, along the first direction C parallel with fingerprint identification mainboard 3, the length of first connecting plate 21 is greater than the length of second connecting plate 22.

[0029] As Figures 2-3 Shown, in the embodiment, along the first direction C parallel with fingerprint identification mainboard 3,

[0030] The length of fingerprint sensor 1 is longer, in order to fit fingerprint sensor 1 and better transmission fingerprint information, the length of first connecting plate 21 is greater than the length of second connecting plate 22, on the one hand, it helps fingerprint sensor 1 to transmit fingerprint information to the central control structure of electronic equipment through first connecting plate 21 and fingerprint identification mainboard 3, also meets the strength requirement, on the other hand, it also saves material cost.

[0031] In an embodiment, the fingerprint identification module further includes at least one fixing part 4, and the fixing part 4 is arranged on the side of the second connecting plate 22 away from the fingerprint sensor 1.

[0032] As Figures 2-3 And Figure 5As shown, in the embodiment, the fixing member 4 is used to be fixedly connected with the electronic device body, and the fixing member 4 can be made of stainless steel or other hard materials, which is more conducive to strengthening the structural strength of the fingerprint sensor 1, and the stainless steel has strong corrosion resistance and oxidation resistance, and is not easy to be damaged, thereby improving the reliability and stability of the whole fingerprint identification module.

[0033] In an embodiment, along the first direction C parallel to the fingerprint identification main plate 3, at least one end of the fixing member 4 exceeds the edge of the second connecting plate 22 and forms a clamping gap 7 with the fingerprint identification main plate 3 for connecting with the electronic device body, the fixing member 4 is clamped with the electronic device body through the clamping gap 7, and the fixing member 4 supports the fingerprint identification module through the electronic device body.

[0034] In an embodiment, the fixing member 4 is a cubic structure, for example, the fixing member 4 can be a cuboid structure or a square structure.

[0035] As shown in Figures 2-3 and Figure 5 In the embodiment, the fixing member 4 is a cuboid structure, and one end of the fixing member 4 close to the fingerprint sensor 1 exceeds the edge of the second connecting plate 22 and forms a clamping gap 7 with the fingerprint identification main plate 3 for connecting with the electronic device body, so that the fixing member 4 is snap connected with the electronic device body. The electronic device body is further provided with a limiting groove, and the fixing member 4 can be further clamped in the limiting groove. Since the fixing member 4 is fixedly connected with the electronic device body and abuts against each other, the fixing member 4 has a certain support to the fingerprint identification module, thereby playing a reinforcing role on the fingerprint identification module.

[0036] In an embodiment, along the first direction C parallel to the fingerprint identification main plate 3, at least one end of the fixing member 4 exceeds the edge of the second connecting plate 22 and does not exceed the edge of the first connecting plate 21.

[0037] As shown in Figures 2-3 and Figure 5 In the embodiment, one end of the fixing member 4 close to the fingerprint sensor 1 exceeds the edge of the second connecting plate 22 and does not exceed the edge of the first connecting plate 21, which is more conducive to the stability of the whole.

[0038] In an embodiment, the fixing member 4 has two and is respectively arranged at two ends of the side of the second connecting plate 22 away from the fingerprint sensor 1, and along the first direction C parallel to the fingerprint identification main plate 3, at least one end of the fixing member 4 exceeds the edge of the second connecting plate 22.

[0039] As shown in Figures 2-3 and Figure 5As shown, in this embodiment, the ends of the two fasteners 4 that are close to the fingerprint sensor 1 extend beyond the edges of both ends of the second connecting plate 22, which can improve the support effect on other components, increase the strength of the module, and ensure the reliability of the installation.

[0040] In one embodiment, the fingerprint recognition module further includes an unlock button 5 for unlocking the electronic device, the unlock button 5 being disposed on the second connecting plate 22.

[0041] like Figures 2-3 and Figure 5 As shown, in this embodiment, the unlock button 5 is located in the middle of the side of the second connecting plate 22 away from the fingerprint sensor 1, and is electrically connected to the second connecting plate 22. The unlock button 5 transmits the unlock signal to the central control structure of the electronic device through the second connecting plate 22 and the fingerprint recognition motherboard 3.

[0042] In one embodiment, the unlock button 5 includes a button plate 51 and at least one keycap 52. One side of the button plate 51 is connected to the second connecting plate 22, and the other side is connected to the keycap 52.

[0043] like Figures 2-3 and Figure 5 As shown, in this embodiment, one side of the button plate 51 is electrically connected to the middle of the second connecting plate 22, and the other side is connected to the keycap 52. The keycap 52 can be set with one or more as needed to improve the convenience of unlocking.

[0044] In one embodiment, the fingerprint recognition motherboard 3 includes an interaction section 31, an extension section 32, and a connection section 33. The interaction section 31 is located between the first connection board 21 and the second connection board 22. One end of the extension section 32 is connected to the interaction section 31, and the other end is connected to the connection section 33. An electrical connector 6 is provided on the connection section 33.

[0045] like Figures 2-3 Figure 5 Figures 2-3 Figure 5 Figures 2-3 Figure 5 Figures 3-4 As shown, in this embodiment, the interaction segment 31, extension segment 32, and connecting segment 33 are flexible parts of the fingerprint recognition motherboard 3. The flexible interaction segment 31 connects the first connecting plate 21 and the second connecting plate 22. This not only makes the fingerprint recognition module less thick due to the thinner interaction segment 31, but also allows the interaction segment 31 to fit snugly against the first and second connecting plates 21 and 22. This further reduces the thickness and makes it easier for the connecting component 2 to transmit support force to the fingerprint sensor 1. The connecting segment 33 is equipped with an electrical connector 6 for electrical connection to the central control structure of the electronic device, facilitating assembly and information exchange. Simultaneously, the flexible extension segment 32 connects the interaction segment 31 and the connecting segment 33, allowing for distance adjustment.

[0046] In addition, the interaction section 31 is connected between the first connecting plate 21 and the second connecting plate 22 and is electrically connected with the fingerprint sensor 1 through the first connecting plate 21, so that the electrical connection between the interaction section 31 and the fingerprint sensor 1 can be protected by the connecting assembly 2, and the electrical connection between the interaction section 31 and the fingerprint sensor 1 can be prevented from being damaged during transportation, installation, disassembly and maintenance.

[0047] The embodiment of another aspect of the present application also provides an electronic device, which comprises an electronic device body and the fingerprint identification module provided by the foregoing embodiment, and the fingerprint identification module is fixed on the electronic device body and electrically connected with the electronic device body.

[0048] In the embodiment, the electronic device is one of a notebook computer, a mobile phone, a tablet computer, an attendance machine and an access control device. The fingerprint identification module further comprises at least one fixing member 4, which is arranged on the side of the second connecting plate 22 away from the fingerprint sensor 1. An end of the fixing member 4 close to the fingerprint sensor 1 is beyond the edge of the second connecting plate 22 and forms a clamping gap 7 with the fingerprint identification main plate 3 for connecting with the electronic device body, so that the fixing member 4 is clamped and connected with the electronic device body. The electronic device body is further provided with a limiting groove, and the fixing member 4 can be further clamped in the limiting groove. Since the fixing member 4 is fixedly connected with the electronic device body and abuts against the electronic device body, the fingerprint identification module is supported to some extent, so that the fingerprint identification module is reinforced. The fingerprint identification module is fixed on the electronic device body and electrically connected with the central control structure of the electronic device body. Since the thickness of the fingerprint identification module is small, the assembly space occupied in the electronic device body is small, which is beneficial to the lightness and thinness of the electronic device. In addition, the fingerprint identification module has a simple processing process, improves the production efficiency and reduces the production cost.

[0049] The above merely provides a specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A fingerprint recognition module, characterized in that, It includes a fingerprint sensor (1), a connection component (2) and a fingerprint recognition motherboard (3). The connection component (2) includes a first connection board (21) and a second connection board (22). One side of the first connection board (21) is connected to the fingerprint sensor (1), and the other side is connected to one side of the fingerprint recognition motherboard (3). The other side of the fingerprint recognition motherboard (3) is connected to the second connection board (22).

2. The fingerprint recognition module according to claim 1, characterized in that, Along a first direction (C) parallel to the fingerprint recognition motherboard (3), the length of the first connecting plate (21) is greater than the length of the second connecting plate (22).

3. The fingerprint recognition module according to claim 1, characterized in that, The fingerprint recognition module also includes at least one fixing member (4), which is located on the side of the second connecting plate (22) away from the fingerprint sensor (1).

4. The fingerprint recognition module according to claim 3, characterized in that, Along a first direction (C) parallel to the fingerprint recognition motherboard (3), at least one end of the fixing member (4) extends beyond the edge of the second connecting plate (22) and forms a snap-fit ​​gap (7) with the fingerprint recognition motherboard (3) for connection with the electronic device body. The fixing member (4) snaps into the electronic device body through the snap-fit ​​gap (7), and the fixing member (4) supports the fingerprint recognition module through the electronic device body.

5. The fingerprint recognition module according to claim 4, characterized in that, Along a first direction (C) parallel to the fingerprint recognition motherboard (3), at least one end of the fixing member (4) extends beyond the edge of the second connecting plate (22) but does not extend beyond the edge of the first connecting plate (21).

6. The fingerprint recognition module according to claim 4, characterized in that, There are two fixing members (4) respectively located at both ends of the second connecting plate (22) away from the fingerprint sensor (1) along a first direction (C) parallel to the fingerprint recognition motherboard (3), and at least one end of the fixing member (4) extends beyond the edge of the second connecting plate (22).

7. The fingerprint recognition module according to claim 1, characterized in that, The fingerprint recognition module also includes an unlock button (5) for unlocking electronic devices, which is located on the second connecting plate (22).

8. The fingerprint recognition module according to claim 7, characterized in that, The unlock button (5) includes a button plate (51) and at least one keycap (52). One side of the button plate (51) is connected to the second connecting plate (22), and the other side is connected to the keycap (52).

9. The fingerprint recognition module according to claim 1, characterized in that, The fingerprint recognition motherboard (3) includes an interaction section (31), an extension section (32) and a connection section (33). The interaction section (31) is located between the first connection board (21) and the second connection board (22). One end of the extension section (32) is connected to the interaction section (31), and the other end is connected to the connection section (33). The connection section (33) is provided with an electrical connector (6).

10. An electronic device, characterized in that, The device includes an electronic device body and a fingerprint recognition module as described in any one of claims 1 to 9, wherein the fingerprint recognition module is fixed to the electronic device body and electrically connected to the electronic device body.