Optical fingerprint module with limiting structure

Abstract

The embodiment of the utility model belongs to the technical field of optical fingerprint modules. The utility model further relates to an optical fingerprint module with the limiting structure, which comprises a circuit board, a reinforcing plate is arranged on one surface of the circuit board, the limiting structure is arranged on the side surface of the reinforcing plate, the limiting structure comprises the limiting plate, and the limiting plate is arranged on the side surface of the reinforcing plate in a protruding manner. The limiting structure is arranged on the reinforcing steel sheet, the installation accuracy of the whole machine can be remarkably improved, various problems caused by misoperation are avoided, the module can be rapidly and accurately positioned in the installation process through the design of the limiting structure, and therefore the installation time is greatly shortened, and bad losses are reduced; specifically, the limiting structure comprises a limiting plate, the limiting plate is arranged on the side face of the reinforcing plate in a protruding mode, physical limiting is provided, and it is ensured that the optical fingerprint module can be aligned with a corresponding structure on a whole machine during installation, so that installation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fingerprint module technical field, more specifically, relate to a kind of optical fingerprint module with limiting structure. BACKGROUND

[0002] As a kind of widely used in smart phone, tablet computer, access control system and other electronic devices in biological recognition component, its installation precision and reliability directly affect the performance and use experience of whole machine, optical fingerprint module;

[0003] In the existing optical fingerprint module assembly process, often because there is no limiting structure and lead to installation time is too long, connector damage or module appearance bad etc., these problems not only affect the assembly efficiency of whole machine, also increase the bad loss, bring unnecessary trouble to production, specifically, because of lack of limiting structure, installation worker when module installation, it is difficult to ensure that module head or connector and the accurate alignment of whole machine assembly position, this not only can lead to installation time extension, also can be damaged due to improper operation or cause module head appearance bruise etc. bad problem. Therefore we improve, propose a kind of optical fingerprint module with limiting structure. SUMMARY

[0004] The technical problem to be solved by the embodiment of the utility model is that there is no limiting structure, which leads to long installation time, connector damage or module appearance bad and other problems.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme as follows:

[0006] An optical fingerprint module with limiting structure, comprising: a circuit board, one side of the circuit board is provided with a reinforcing plate, the side surface of the reinforcing plate is provided with a limiting structure, the limiting structure comprises a limiting plate, and the limiting plate is protrudingly arranged on the side surface of the reinforcing plate. By arranging the limiting structure on the reinforcing steel sheet, the accuracy of the whole machine installation can be significantly improved, various problems caused by improper operation can be avoided, and the design of the limiting structure enables the module to be quickly and accurately positioned during installation, thereby greatly shortening the installation time and reducing the bad loss. Specifically, the limiting structure comprises a limiting plate, the limiting plate is protrudingly arranged on the side surface of the reinforcing plate, physical limiting is provided, and the optical fingerprint module can be aligned with the corresponding structure on the whole machine during installation, so as to facilitate installation.

[0007] As an improved mode of the utility model, the limiting groove is arranged on the side of the limiting plate away from the reinforcing plate, the limiting groove further optimizes the limiting effect, provides more accurate alignment, and realizes better alignment effect; the limiting groove can be positioned with the corresponding structure (such as a positioning hole and a positioning bolt) on the whole machine, thereby reducing the debugging time and cost due to inaccurate position during installation.

[0008] As an improved mode of the utility model, the reinforcing plate comprises a head reinforcing plate and a connector reinforcing plate, and the head reinforcing plate and the connector reinforcing plate are both installed on the circuit board.

[0009] As an improved mode of the utility model, the number of the limiting plates is two, the two limiting plates are arranged on the side surfaces of the head reinforcing plate and the connector reinforcing plate respectively, the two limiting plates are arranged on the side surfaces of different reinforcing plates, in the installation process, they can limit and position the module from multiple positions, provide more stable support and more accurate positioning, and the module is not easy to deviate in the installation process.

[0010] As an improved mode of the utility model, the circuit board is provided with a connector main body, and the connector main body is located on the side of the circuit board away from the connector reinforcing plate.

[0011] As an improved mode of the utility model, the circuit board is provided with an optical assembly, and the optical assembly is located on the side of the circuit board away from the head reinforcing plate.

[0012] As an improved mode of the utility model, the optical assembly comprises a chip, the chip is arranged on the circuit board, and the chip is provided with a filter on the side away from the circuit board, the filter only allows the required light to reach the chip, in actual application, ambient light often contains light of various wavelengths, some of which may interfere with the sensing of the chip, resulting in inaccurate fingerprint recognition, the filter can block these interfering light outside, so that the chip can more accurately sense the effective light related to the fingerprint, which can enhance the accuracy and stability of optical fingerprint recognition, reduce the occurrence of misidentification and missed identification, improve the use experience of users and the reliability of the product.

[0013] As an improved mode of the utility model, the circuit board is provided with a protection assembly for protecting the chip and the filter.

[0014] As an improved mode of the utility model, the protection assembly comprises a support, the support is bonded to the circuit board, and the chip and the filter are both located in the support.

[0015] As an improved mode of the utility model, the support is provided with a lens hole, and an optical lens is arranged in the lens hole.

[0016] Compared with the prior art, the embodiments of the utility model have the following beneficial effects:

[0017] In order to solve the problem of long installation time, connector damage or poor appearance of module caused by the absence of limiting structure in the prior art, the application sets the limiting structure on the reinforcing steel sheet, which can significantly improve the accuracy of the whole machine installation, avoid various problems caused by improper operation, and the design of the limiting structure enables the module to be quickly and accurately positioned during installation, thereby greatly shortening the installation time and reducing the defective loss; specifically, the limiting structure includes a limiting plate, which is protrudingly arranged on the side surface of the reinforcing plate to provide physical limiting and ensure that the optical fingerprint module can be aligned with the corresponding structure on the whole machine during installation, thereby facilitating installation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure diagram of the optical fingerprint module with the limiting structure provided by the application is provided;

[0019] Figure 2 The structure diagram of the optical fingerprint module with the limiting structure provided by the application is provided Figure 1 The exploded view of the optical fingerprint module with the limiting structure provided by the application is provided;

[0020] Figure 3 The bottom structure diagram of the optical fingerprint module with the limiting structure provided by the application is provided;

[0021] Figure 4 The structure diagram of the optical fingerprint module with the limiting structure provided by the application is provided Figure 3 The exploded view of the optical fingerprint module with the limiting structure provided by the application is provided.

[0022] Indicated in the figure:

[0023] 1, circuit board; 101, head reinforcing plate; 102, connector reinforcing plate; 103, chip; 104, optical filter; 105, support; 106, lens hole; 107, optical lens; 108, connector main body; 2, limiting plate; 201, limiting groove. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. The term "comprising" means "including, but not limited to." The term "consisting essentially of means "including and limited to." The term "consisting of means "including and limited to."

[0025] As described in the background, in the existing optical fingerprint module assembly process, often due to the lack of limiting structure, resulting in long installation time, connector damage or module appearance bad and other problems, these problems not only affect the assembly efficiency of the whole machine, but also increase the loss of bad, bring unnecessary trouble to the production, specifically, due to the lack of limiting structure, the installation worker installs the module, it is difficult to ensure that the module head or the connector is accurately aligned with the assembly position of the whole machine, which not only may cause the installation time to be prolonged, but also may damage the connector or cause the appearance of the module head to be pressed due to improper operation.

[0026] In order to solve this technical problem, the utility model provides a kind of optical fingerprint module with limiting structure.

[0027] Specifically, please refer to Figures 1-4 Optical fingerprint module with limiting structure specifically includes:

[0028] Circuit board 1, one side of circuit board 1 is provided with reinforcing plate, and the side of reinforcing plate is provided with limiting structure, and limiting structure includes limiting plate 2, limiting plate 2 is protrudingly arranged on the side of reinforcing plate.

[0029] The optical fingerprint module with limiting structure provided by the utility model can significantly improve the accuracy of the whole machine installation by setting limiting structure on the reinforcing steel sheet, avoid various problems caused by improper operation, the design of limiting structure enables the module to be quickly and accurately positioned during installation, thereby greatly shortening the installation time and reducing the loss of bad;Specifically, limiting structure includes limiting plate 2, limiting plate 2 is protrudingly arranged on the side of reinforcing plate, provides physical limiting, ensures that optical fingerprint module can be aligned with the corresponding structure on the whole machine during installation, so as to facilitate installation.

[0030] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be described clearly and completely in conjunction with the drawings.

[0031] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0032] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it need not be further defined and explained in subsequent views.

[0033] Embodiment one of the optical fingerprint module with a limiting structure

[0034] Please refer to Figures 1-4 The optical fingerprint module with a limiting structure comprises a circuit board 1, one side of the circuit board 1 is provided with a reinforcing plate, the side of the reinforcing plate is provided with a limiting structure, the limiting structure comprises a limiting plate 2, the limiting plate 2 is protrusively arranged on the side of the reinforcing plate; the limiting structure is arranged on the reinforcing steel sheet, the precision of the whole machine installation can be significantly improved, various problems caused by improper operation can be avoided, the design of the limiting structure enables the module to be quickly and accurately positioned during the installation process, so that the installation time is greatly shortened, and the defective loss is reduced; specifically, the limiting structure comprises the limiting plate 2, the limiting plate 2 is protrusively arranged on the side of the reinforcing plate, physical limiting is provided, and it is ensured that the optical fingerprint module can be aligned with the corresponding structure on the whole machine during installation, so as to facilitate installation.

[0035] As a key part of the limiting structure, the limiting plate 2 is protrusively arranged on the side of the reinforcing plate, and when the module is installed, it can be in close contact with the corresponding structure on the whole machine, clear and definite physical limiting boundaries are formed, the installer can quickly and accurately place the module to the predetermined position, and repeated adjustment due to position deviation is reduced.

[0036] Further, as shown in Figures 1-4 The limiting groove 201 is arranged on the side, away from the reinforcing plate, of the limiting plate 2, the limiting groove 201 functions to further optimize the limiting effect and provide more accurate alignment, so as to achieve better alignment effect; the limiting groove 201 can be positioned in cooperation with the corresponding structure (such as a positioning hole and a positioning bolt) on the whole machine, so that the debugging time and cost due to inaccurate position during installation are reduced.

[0037] Further, as shown in Figures 3-4 The reinforcing plate comprises a head reinforcing plate 101 and a connector reinforcing plate 102, the head reinforcing plate 101 and the connector reinforcing plate 102 are both installed on the circuit board 1, and the connector reinforcing plate 102 and the connector reinforcing plate 102 are respectively used for reinforcing the head of the head reinforcing plate 101 and the area where the connector is arranged.

[0038] The head reinforcing plate 101 and the connector reinforcing plate 102 reinforce the key areas of the circuit board 1 respectively, in the actual use process of the module, the head area and the area where the connector is arranged often bear greater external force, such as the pulling force and impact force generated when the connector is plugged and unplugged, the arrangement of the reinforcing plate increases the strength and stability of the corresponding position, which enables the circuit board 1 to better resist deformation and damage, thereby improving the durability and reliability of the module, reducing the module failure caused by damage of the circuit board 1, prolonging the service life of the module, and reducing the use cost of the user and the after-sales maintenance cost of the enterprise.

[0039] Further, as shown in Figures 1-4 The two limiting plates 2 are arranged on the side surfaces of the head reinforcing plate 101 and the connector reinforcing plate 102 respectively, and they can limit and position the module from multiple positions in the installation process, provide more stable support and more accurate positioning, and prevent the module from deviating in the installation process.

[0040] Embodiment two of the optical fingerprint module with a limiting structure

[0041] The optical fingerprint module with a limiting structure further comprises a connector main body 108 arranged on the circuit board 1. Figure 1 The connector main body 108 is arranged on the side of the circuit board 1 away from the connector reinforcing plate 102, which effectively avoids the interference of the connector reinforcing plate 102 on the connection of the connector main body 108 and other components.

[0042] Further, the circuit board 1 is provided with an optical assembly, and the optical assembly is located on the side of the circuit board 1 away from the head reinforcing plate 101.

[0043] Further, as shown in Figure 2 The optical assembly comprises a chip 103 arranged on the circuit board 1, and the chip 103 is provided with a filter 104 on the side away from the circuit board 1. In actual application, ambient light often contains light of various wavelengths, some of which may interfere with the sensing of the chip 103 and cause inaccurate fingerprint recognition. The filter 104 can block these interfering light outside, so that the chip 103 can more accurately sense the effective light related to the fingerprint, which can enhance the accuracy and stability of optical fingerprint recognition, reduce the occurrence of misidentification and missed identification, and improve the user experience and reliability of the product.

[0044] Embodiment three of the optical fingerprint module with a limiting structure

[0045] The optical fingerprint module with the limiting structure further has a protection assembly arranged on the circuit board 1, and the protection assembly is used for protection of the chip 103 and the optical filter 104; the chip 103 and the optical filter 104 are core components in the optical fingerprint module, and they are very fragile and are easily affected by external environmental factors; dust may be attached to the surface of the optical filter 104, affecting the light transmittance and further affecting the accuracy of fingerprint identification; the arrangement of the protection assembly can effectively block the invasion of external factors, and provide a relatively stable and safe working environment for the chip 103 and the optical filter 104, so that the performance of the module is stable in a long-term use process, and the probability of failure is reduced.

[0046] Further, as shown in Figures 1-2 The protection assembly includes a support 105, the support 105 is bonded to the circuit board 1, and the chip 103 and the optical filter 104 are located in the support 105, and the support 105 can provide physical protection for the chip 103 and the optical filter 104.

[0047] Further, as shown in Figure 2 The support 105 is provided with a lens hole 106, and the lens hole 106 is provided with an optical lens 107; the lens hole 106 is used for providing space for arrangement of the optical lens 107.

[0048] In the whole machine assembly process, an operator aligns the limiting plate 2 and the limiting groove 201 of the optical fingerprint module with corresponding structures on the whole machine, the limiting plate 2 is in contact with the corresponding structure (such as a shell) on the whole machine, preliminary limiting and alignment are provided, the limiting groove 201 is positioned with the structure (such as a positioning hole and a positioning bolt) of the corresponding structure on the whole machine, and accurate positioning of the optical fingerprint module is further ensured; through the double limiting of the limiting plate 2 and the limiting groove 201, the optical fingerprint module can be quickly and accurately positioned in the installation process, and problems such as damage of the connector or bruising of the appearance of the module caused by improper operation are avoided.

[0049] Obviously, the above-described embodiments are only some embodiments of the utility model, rather than all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but the utility model is not limited by the patent range. The utility model can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments or make equivalent replacement to some technical features. Any equivalent structure made by referring to the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection range of the utility model.

Claims

1. An optical fingerprint module with a limiting structure, characterized in that, Include: The circuit board (1), one side of the circuit board (1) is provided with a reinforcing plate, the side of the reinforcing plate is provided with a limiting structure, the limiting structure includes a limiting plate (2), the limiting plate (2) is protrudingly arranged on the side of the reinforcing plate.

2. The optical fingerprint module with a limiting structure according to claim 1, wherein, The limiting plate (2) is provided with a limiting groove (201) on the side away from the reinforcing plate.

3. The optical fingerprint module with limiting structure according to claim 1 or 2, characterized in that, The reinforcing plate includes a head reinforcing plate (101) and a connector reinforcing plate (102), and the head reinforcing plate (101) and the connector reinforcing plate (102) are installed on the circuit board (1).

4. The optical fingerprint module with a limiting structure according to claim 3, wherein, The number of the limiting plate (2) is two, and the two limiting plates (2) are arranged on the side of the head reinforcing plate (101) and the connector reinforcing plate (102) respectively.

5. The optical fingerprint module with a limiting structure according to claim 4, wherein, The circuit board (1) is provided with a connector main body (108), and the connector main body (108) is located on the side of the circuit board (1) away from the connector reinforcing plate (102).

6. The optical fingerprint module with a limiting structure according to claim 5, wherein, The circuit board (1) is provided with an optical assembly, and the optical assembly is located on the side of the circuit board (1) away from the head reinforcing plate (101).

7. The optical fingerprint module with a limiting structure according to claim 6, wherein, The optical assembly includes a chip (103), the chip (103) is arranged on the circuit board (1), and the chip (103) is provided with a filter (104) on the side away from the circuit board (1).

8. The optical fingerprint module with a limiting structure according to claim 7, wherein, The circuit board (1) is provided with a protection assembly, and the protection assembly is used for protecting the chip (103) and the filter (104).

9. The optical fingerprint module with a limiting structure according to claim 8, wherein, The protection assembly includes a support (105), the support (105) is bonded to the circuit board (1), and the chip (103) and the filter (104) are located in the support (105).

10. The optical fingerprint module with a limiting structure according to claim 9, wherein, The support (105) is provided with a lens hole (106), and the lens hole (106) is provided with an optical lens (107).

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