Fingerprint module capable of preventing golden finger from being damaged
By setting a step-shaped second reinforcing plate in the fingerprint module, the problems of excessive force and misalignment during operation are solved, improving operation efficiency and reducing the risk of damage to the gold finger.
Patent Information
- Application Number
- CN202520040836.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing fingerprint modules are prone to damage to the gold fingers due to excessive force or misalignment during operation.
A second reinforcing plate is set in the fingerprint module to form a stepped structure. The height of the plate is equal to the height of the connector into which the gold finger is inserted. This plate is used to limit the movement and prevent excessive force or misalignment.
It improves operational efficiency and reduces the possibility of damage to the FPC gold fingers.
Smart Images
Figure CN223843949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fingerprint recognition technology, and more specifically, to a fingerprint module that avoids damage to the gold finger. Background Technology
[0002] The main connection types between fingerprint modules and motherboards are BTB and ZIF. ZIF, also known as a plug-in interface design, typically features exposed copper gold fingers on the front of the FPC interface and a reinforcing plate on the back. After the gold fingers are inserted into the connector, they connect to the connector to achieve electrical signal communication. However, because this method lacks clear positioning and handles, employees may use excessive force or insert the gold fingers at an angle, which can easily lead to poor contact and damage to the gold fingers. Utility Model Content
[0003] The technical problem to be solved by this utility model is how to avoid excessive force and misalignment during actual operation, thereby improving operating efficiency and reducing the possibility of damage to FPC gold fingers.
[0004] The technical problem to be solved by this utility model is achieved through the following technical solution:
[0005] To solve the above-mentioned technical problems, this utility model provides a fingerprint module that avoids damage to the gold finger, which includes a module body and an FPC disposed below the module body. A reinforcing steel sheet is disposed on the lower surface of the FPC, and a gold finger is disposed on the lower surface of the end of the FPC. A first reinforcing plate is disposed on the upper surface of the FPC located at the gold finger, and a second reinforcing plate is disposed above the first reinforcing plate. The second reinforcing plate is shorter than the first reinforcing plate and forms a step. The height of the second reinforcing plate is equal to the height of the connector that is inserted into the gold finger.
[0006] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the distance between the end of the second reinforcing plate and the end of the gold finger is equal to the designed insertion depth of the gold finger, and the shape of the second reinforcing plate is rectangular.
[0007] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the height of the second reinforcing plate is 1±0.1mm and the width of the second reinforcing plate is 3±0.3mm.
[0008] In a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the first reinforcing plate and the second reinforcing plate are made of PI.
[0009] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the flame retardant material grade of the first reinforcing plate and the second reinforcing plate is FR-4.
[0010] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the outer surface of the second reinforcing plate is provided with a surface treatment layer that increases the surface roughness.
[0011] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the surface treatment layer is diamond knurled.
[0012] In a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the surface treatment layer is a frosted layer.
[0013] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, the second reinforcing plate is provided with extension portions on both sides.
[0014] As a preferred embodiment of the fingerprint module for avoiding damage to the gold finger provided by this utility model, an arc-shaped groove is provided on the extension portion.
[0015] This utility model has the following beneficial effects:
[0016] The step is formed by the second reinforcing plate, and the height of the second reinforcing plate is equal to the height of the connector that the gold finger is inserted into. When the gold finger is inserted into the connector, the second reinforcing plate can be used to limit the movement, so as to avoid excessive force or misalignment during actual operation, thereby improving operating efficiency and reducing the possibility of damage to the FPC gold finger. Attached Figure Description
[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a fingerprint module that avoids damage to the gold finger, as provided by this utility model.
[0019] Figure 2 for Figure 1 The left view.
[0020] Figure 3 for Figure 1 The right view.
[0021] Figure 4 for Figure 1 Enlarged view of point A in the image.
[0022] Figure 5 This is a schematic diagram of the structure where the gold fingers mate with the connector.
[0023] Figure 6 This is a schematic diagram of the improved structure of the second reinforcing plate.
[0024] Explanation of icon numbers:
[0025] Module body 1; FPC 2; reinforcing steel sheet 3; gold finger 4; first reinforcing plate 5; second reinforcing plate 6; connector 100; extension part 7; arc groove 8. Detailed Implementation
[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0029] This invention provides a fingerprint module that avoids damage to the gold finger, comprising a module body and an FPC disposed below the module body. A reinforcing steel sheet is disposed on the lower surface of the FPC, and a gold finger is disposed on the lower surface of the end of the FPC. A first reinforcing plate is disposed on the upper surface of the FPC located at the gold finger, and a second reinforcing plate is disposed above the first reinforcing plate. The second reinforcing plate is shorter than the first reinforcing plate and forms a step. The height of the second reinforcing plate is equal to the height of the connector that is inserted into the gold finger.
[0030] The step is formed by the second reinforcing plate, and the height of the second reinforcing plate is equal to the height of the connector that the gold finger is inserted into. When the gold finger is inserted into the connector, the second reinforcing plate can be used to limit the movement, so as to avoid excessive force or misalignment during actual operation, thereby improving operating efficiency and reducing the possibility of damage to the FPC gold finger.
[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0032] Example 1, please refer to Figures 1 to 5 This invention provides a fingerprint module to prevent damage to the gold finger 4. It includes a module body 1 and an FPC 2 disposed below the module body 1. A reinforcing steel sheet 3 is provided on the lower surface of the FPC 2, and a gold finger 4 is provided on the lower surface of the end of the FPC 2. A first reinforcing plate 5 is provided on the upper surface of the FPC 2 at the gold finger 4, and a second reinforcing plate 6 is provided above the first reinforcing plate 5. The second reinforcing plate 6 is shorter than the first reinforcing plate 5, forming a step, and its height is equal to the height of the connector 100 into which the gold finger 4 is inserted. Because the second reinforcing plate 6 forms a step, and its height is equal to the height of the connector 100, when the gold finger 4 is inserted into the connector 100, the second reinforcing plate 6 can limit its movement, preventing excessive force or misalignment during operation, thereby improving operational efficiency and reducing the possibility of damage to the gold finger 4 of the FPC 2.
[0033] Furthermore, the distance between the end of the second reinforcing plate 6 and the end of the gold finger 4 is equal to the designed insertion depth of the gold finger 4. The second reinforcing plate 6 is rectangular in shape to ensure that when the gold finger 4 is inserted into the connector 100, the second reinforcing plate 6 can be used for limiting, so as to avoid excessive force and misalignment during actual operation.
[0034] Furthermore, the height of the second reinforcing plate 6 is 1±0.1mm, and the width of the second reinforcing plate 6 is 3±0.3mm.
[0035] Furthermore, the first reinforcing plate 5 and the second reinforcing plate 6 are made of PI material, and the fire-resistant material grade of the first reinforcing plate 5 and the second reinforcing plate 6 is FR-4, which has a high cost performance.
[0036] Furthermore, the outer surface of the second reinforcing plate 6 is provided with a surface treatment layer that increases surface roughness. This surface treatment layer is a diamond knurled or frosted layer, so as to provide sufficient friction when inserting the gold finger 4 and reduce the difficulty of insertion and removal.
[0037] Example 2, please refer to Figure 6 As a further optimization of Embodiment 1, in this embodiment, extension portions 7 are provided on both sides of the second reinforcing plate 6. Insertion and removal can be performed through the extension portions 7 to improve the efficiency and effect of insertion and removal. More preferably, arc-shaped grooves 8 are provided on the extension portions 7 to facilitate insertion and removal and improve the efficiency and effect of insertion and removal.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.
Claims
1. A fingerprint module that avoids damage to the fingerprint sensor, characterized in that, It includes a module body and an FPC disposed below the module body. The lower surface of the FPC is provided with a reinforcing steel sheet, and the lower surface of the end of the FPC is provided with a gold finger. The upper surface of the FPC located at the gold finger is provided with a first reinforcing plate, and a second reinforcing plate is provided above the first reinforcing plate. The second reinforcing plate is shorter than the first reinforcing plate and forms a step. The height of the second reinforcing plate is equal to the height of the connector that is inserted into the gold finger.
2. The fingerprint module for avoiding damage to the gold finger according to claim 1, characterized in that, The distance between the end of the second reinforcing plate and the end of the gold finger is equal to the designed insertion depth of the gold finger, and the shape of the second reinforcing plate is rectangular.
3. The fingerprint module for avoiding damage to the gold finger according to claim 1, characterized in that, The height of the second reinforcing plate is 1±0.1mm, and the width of the second reinforcing plate is 3±0.3mm.
4. The fingerprint module for avoiding damage to the gold finger according to claim 1, characterized in that, The first and second reinforcing plates are made of PI.
5. The fingerprint module for avoiding damage to the gold finger according to claim 1, characterized in that, The first and second reinforcing plates are made of FR-4 fire-resistant materials.
6. The fingerprint module for avoiding damage to the gold finger according to claim 1, characterized in that, The outer surface of the second reinforcing plate is provided with a surface treatment layer to increase surface roughness.
7. The fingerprint module for avoiding damage to the gold finger according to claim 6, characterized in that, The surface treatment layer is a diamond-shaped knurled layer.
8. The fingerprint module for avoiding damage to the gold finger according to claim 6, characterized in that, The surface treatment layer is a frosted layer.
9. The fingerprint module for avoiding damage to the gold finger according to claim 1, characterized in that, The second reinforcing plate has extensions on both sides.
10. The fingerprint module for avoiding damage to the gold finger according to claim 9, characterized in that, An arc-shaped groove is provided on the extension portion.