Fingerprint module with auxiliary extension structure

Abstract

The utility model discloses a fingerprint module with an auxiliary extension structure, comprising a long strip-shaped main FPC board body and a circular auxiliary FPC board body, two sides of the auxiliary FPC board body are provided with auxiliary lifting ears, the upper surface of the auxiliary FPC board body is provided with an LGA module, the periphery of the LGA module is provided with a metal outer frame, the upper surface of the LGA module is provided with a cover plate, and the upper surface of the LGA module is provided with an auxiliary extension structure. A reinforcing steel sheet is arranged on the lower surface of the auxiliary FPC board body. When the fingerprint module is taken and placed, the fingers of a user can directly pinch the corresponding auxiliary lifting ears, and the auxiliary lifting ears are tilted, so that the fingerprint module is convenient to pinch and take, the operation difficulty is effectively reduced, and static electricity of a human body can be effectively prevented from being conducted to the fingerprint module. In addition, as the auxiliary lifting lugs and the auxiliary FPC board body are of an integrated structure, the auxiliary lifting lugs can be obtained through one-step processing, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to a fingerprint module, more specifically, to a fingerprint module with an auxiliary extension structure. Background Art

[0002] The fingerprint module is a very thin product. Usually, the thickness of the module is only 2 to 3 mm, which makes it difficult and inefficient for production staff to take and place the module. Therefore, a design solution is needed to facilitate taking and placing of the module, so as to facilitate taking and placing of the module and improve production efficiency.

[0003] Chinese invention patent document CN111198598A discloses a fingerprint module, which includes: a cover plate, which includes a front and a back, a mounting hole is opened at a preset position of the cover plate, and the inner wall of the mounting hole has an inner chamfer structure at one end close to the front; a fingerprint module body, the outer wall of the fingerprint module body has an outer chamfer structure at one end close to the front, and the outer chamfer structure cooperates with the inner chamfer structure to accommodate the fingerprint module body in the mounting hole; a sealing ring, which is arranged between the outer wall of the fingerprint module body and the inner wall of the mounting hole. The outer wall of the fingerprint module body has an annular limiting groove at one end close to the back; the sealing ring is arranged in the limiting groove and abuts against the inner wall of the mounting hole at one end close to the back. The inner wall of the mounting hole has an annular limiting groove at one end close to the back; the sealing ring is arranged in the limiting groove and abuts against the outer wall of the fingerprint module body at one end close to the back. The sealing ring is made of elastic material, and the sealing ring is interference fit with the outer wall of the fingerprint module body and the inner wall of the mounting hole. The fingerprint module also includes: a fixing screw and a fixing member; the fixing member is provided with a first screw hole that penetrates through; a second screw hole is provided at one end of the fingerprint module body close to the back of the cover plate; the fixing screw passes through the first screw hole and is screwed to the fingerprint module body through the second screw hole, so that the edge of the fixing member abuts against the back of the cover plate. The inner chamfer structure includes an annular first bevel; the width of the first bevel is a preset width, and the angle between the first bevel and the thickness direction of the cover plate is a preset angle, which is greater than 0 degrees and less than or equal to 90 degrees. The outer chamfer structure includes an annular second bevel; the width of the second bevel is the preset width, and the angle between the second bevel and the thickness direction of the fingerprint module body is the preset angle. The first inclined surface is provided with a first protrusion, and the second inclined surface is provided with a first groove matching with the first protrusion; and / or the first inclined surface is provided with a second groove, and the second inclined surface is provided with a second protrusion matching with the second groove.

[0004] Obviously, the projection part of the fingerprint module body in the thickness direction of the patent can cover the display screen, making the frame near the fingerprint module narrower and improving the overall screen-to-body ratio of the terminal. However, this structure cannot solve the existing pick-and-place problem.

[0005] Chinese invention patent document CN110456203A discloses a fingerprint module detection device, including a test fixture, the test fixture includes a test mainboard and a model circuit, and the model circuit pre-stores the model name of the fingerprint module that the test fixture can test. The fingerprint module detection device also includes a test machine, and the model circuit signal is connected to the test machine. The model circuit is arranged on the test mainboard, the test mainboard signal is connected to the test machine, and the model circuit is electrically connected to the test mainboard. The test mainboard and the model circuit are respectively arranged on the test fixture, and the test mainboard and the model circuit are respectively connected to the test machine. The model circuit is a read-write memory. Obviously, in this patent, since the model circuit can identify the model of the fingerprint module that the test fixture can detect, it avoids manual inspection of the test fixture, on the one hand, avoids the error of matching the test fixture with the fingerprint module, and on the other hand, improves work efficiency. However, this structure cannot solve the existing pick-and-place problem. Utility Model Content

[0006] Based on this, it is necessary to provide a fingerprint module with an auxiliary extension structure to address the above technical problems. The fingerprint module with an auxiliary extension structure comprises a long strip-shaped main FPC board and a circular auxiliary FPC board. Auxiliary lifting ears are provided on both sides of the auxiliary FPC board. An LGA module is provided on the upper surface of the auxiliary FPC board. A metal outer frame is provided around the LGA module. A cover plate is provided on the upper surface of the LGA module. A reinforcing steel sheet is provided on the lower surface of the auxiliary FPC board. When taking and placing the fingerprint module, the user's fingers can directly pinch the corresponding auxiliary lifting ears. Since the auxiliary lifting ears are tilted, pinching is convenient, which effectively reduces the difficulty of operation and can effectively prevent the static electricity of the human body from being conducted to the fingerprint module. In addition, since the auxiliary lifting ears and the auxiliary FPC board are an integrated structure, they can be processed in one step, and the production cost is low.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A fingerprint module with an auxiliary extension structure, characterized in that the fingerprint module with the auxiliary extension structure comprises a long strip-shaped main FPC board and a circular auxiliary FPC board, auxiliary lifting ears are provided on both sides of the auxiliary FPC board, an LGA module is provided on the upper surface of the auxiliary FPC board, a metal outer frame is provided around the LGA module, a cover plate is provided on the upper surface of the LGA module, and a reinforcing steel sheet is provided on the lower surface of the auxiliary FPC board.

[0009] As a preferred implementation of the fingerprint module with auxiliary extension structure provided by the utility model, the auxiliary ear-lifting structure is in a "C" shape.

[0010] As a preferred embodiment of the fingerprint module with auxiliary extension structure provided by the utility model, the auxiliary ear lifting structure and the auxiliary FPC board are an integrated structure.

[0011] As a preferred embodiment of the fingerprint module with auxiliary extension structure provided by the utility model, the angle between the setting direction of the auxiliary ear lifting structure and the extension direction of the secondary FPC board is greater than 30°.

[0012] As a preferred embodiment of the fingerprint module with auxiliary extension structure provided by the utility model, the angle between the setting direction of the auxiliary ear lifting structure and the extension direction of the secondary FPC board is 90°.

[0013] As a preferred embodiment of the fingerprint module with auxiliary extension structure provided by the utility model, the width of the auxiliary ear lifting structure is 0.6 mm to 1.2 mm.

[0014] As a preferred implementation of the fingerprint module with auxiliary extension structure provided by the utility model, the width of the auxiliary ear lifting structure is 1 mm.

[0015] As a preferred embodiment of the fingerprint module with auxiliary extension structure provided by the utility model, a stamp hole is provided at the junction of the auxiliary ear lifting structure and the auxiliary FPC plate.

[0016] As a preferred embodiment of the fingerprint module with auxiliary extension structure provided by the utility model, a first infrared radiation coating is provided between the reinforcing steel sheet and the auxiliary FPC board, and a second infrared radiation coating is provided on the lower surface of the reinforcing steel sheet.

[0017] As a preferred implementation of the fingerprint module with auxiliary extension structure provided by the utility model, the thickness of the second infrared radiation coating is greater than that of the first infrared radiation coating.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a fingerprint module with an auxiliary extension structure. When taking or placing the fingerprint module, the user's fingers can directly pinch the corresponding auxiliary lifting ears. Since the auxiliary lifting ears are tilted, it is convenient to pinch and take, effectively reducing the difficulty of operation, and can also effectively prevent the static electricity of the human body from being transmitted to the fingerprint module. In addition, since the auxiliary lifting ears and the auxiliary FPC board are an integrated structure, they can be processed in one step, and the manufacturing cost is low.

[0020] In addition, a stamp hole can be provided at the junction of the auxiliary lifting ear and the auxiliary FPC board. After the fingerprint module is installed in place, the user can use the stamp hole to directly tear off the auxiliary lifting ear without affecting the appearance and performance of the auxiliary FPC board.

[0021] In addition, a first infrared radiation coating can be provided between the reinforcing steel sheet and the auxiliary FPC board, and a second infrared radiation coating can be provided on the lower surface of the reinforcing steel sheet. The thickness of the second infrared radiation coating is greater than that of the first infrared radiation coating. The use of the reinforcing steel sheet can effectively improve the overall strength of the auxiliary FPC board. The use of the first infrared radiation coating and the second infrared radiation coating can effectively improve the thermal conductivity of the reinforcing steel sheet, prevent heat accumulation, and improve the heat dissipation performance of the auxiliary FPC board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of a fingerprint module with an auxiliary extension structure of the present utility model;

[0024] Figure 2 for Figure 1 The schematic diagram of the structure of the fingerprint module with the auxiliary extension structure in FIG. 1 is another perspective;

[0025] Figure 3 for Figure 1 A structural diagram of another embodiment of a fingerprint module with an auxiliary extension structure;

[0026] Figure 4 for Figure 3 A detailed enlarged schematic diagram of area A in FIG.

[0027] The markings in the figure are as follows: 1. Main FPC board; 2. Auxiliary FPC board; 21. Auxiliary lifting ear; 211. Stamp hole; 3. Cover plate; 4. LGA module; 5. Metal frame; 6. Reinforcement steel sheet; 7. First infrared radiation coating; 8. Second infrared radiation coating. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0029] As described in the background technology, the existing technology is that the fingerprint module is a very light and thin product. Usually, the thickness of the module is only 2 to 3 mm, which makes the production staff's picking and placing operations difficult and inefficient. Therefore, a design solution is needed that can facilitate the employees' picking and placing, so as to facilitate picking and placing and improve production efficiency.

[0030] In order to solve this technical problem, the utility model provides a fingerprint module with an auxiliary extension structure, including a long strip-shaped main FPC board 1 and a circular auxiliary FPC board 2, auxiliary lifting ears 21 are provided on both sides of the auxiliary FPC board 2, an LGA module 4 (LGA, i.e. Land Grid Array, fingerprint recognition chip) is provided on the upper surface of the auxiliary FPC board 2, a metal outer frame 5 is provided around the LGA module 4, a cover plate 3 is provided on the upper surface of the LGA module 4, and a reinforcing steel sheet 6 is provided on the lower surface of the auxiliary FPC board 2.

[0031] With the above structural design, when taking and placing the fingerprint module, the user can directly pinch the corresponding auxiliary lifting ear 21 with his fingers. Since the auxiliary lifting ear 21 is tilted, it is convenient to pinch and take, which effectively reduces the difficulty of operation and can effectively prevent the static electricity of the human body from being transmitted to the fingerprint module. In addition, since the auxiliary lifting ear 21 and the auxiliary FPC board 2 are an integrated structure, they can be processed in one step, and the manufacturing cost is low.

[0032] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] like Figure 1 and Figure 2 As shown, the fingerprint module with an auxiliary extension structure comprises a main FPC board 1 in an elongated strip shape and a circular auxiliary FPC board 2, auxiliary lifting ears 21 are provided on both sides of the auxiliary FPC board 2, an LGA module 4 (LGA, i.e., Land Grid Array, fingerprint recognition chip) is provided on the upper surface of the auxiliary FPC board 2, a metal outer frame 5 is provided around the LGA module 4, a cover plate 3 is provided on the upper surface of the LGA module 4, and a reinforcing steel sheet 6 is provided on the lower surface of the auxiliary FPC board 2.

[0036] It should be noted that the auxiliary lifting ear 21 is in a "C" shape. In addition, the auxiliary lifting ear 21 and the auxiliary FPC board 2 are an integral structure.

[0037] In addition, the angle between the setting direction of the auxiliary lifting ear 21 and the extension direction of the auxiliary FPC board 2 is greater than 30°. Preferably, the angle between the setting direction of the auxiliary lifting ear 21 and the extension direction of the auxiliary FPC board 2 is 90°.

[0038] It should be noted that the width of the auxiliary ear lifting device 21 is 0.6 mm to 1.2 mm. Preferably, the width of the auxiliary ear lifting device 21 is 1 mm.

[0039] The working mode of this embodiment is described below.

[0040] When taking or placing the fingerprint module, the user can directly pinch the corresponding auxiliary lifting ear 21 with his / her finger. Since the auxiliary lifting ear 21 is tilted, it is convenient to pinch and take, which effectively reduces the difficulty of operation and can also effectively prevent the static electricity of the human body from being transmitted to the fingerprint module. In addition, since the auxiliary lifting ear 21 and the auxiliary FPC board 2 are an integrated structure, they can be processed in one step, and the manufacturing cost is low.

[0041] like Figure 3 and Figure 4 As shown, the fingerprint module with the auxiliary extension structure provided in Example 1 is further optimized. Specifically, a stamp hole 211 is provided at the junction of the auxiliary ear lifting 21 and the auxiliary FPC board 2.

[0042] The working mode of this embodiment is described below.

[0043] After the fingerprint module is installed in place, the user can use the stamp hole 211 to directly tear off the auxiliary lifting ear 21 without affecting the appearance and performance of the auxiliary FPC board 2.

[0044] like Figure 2 As shown, the fingerprint module with an auxiliary extension structure provided in Example 1 or 2 is further optimized. Specifically, a first infrared radiation coating 7 is provided between the reinforcing steel sheet 6 and the auxiliary FPC board 2, and a second infrared radiation coating 8 is provided on the lower surface of the reinforcing steel sheet 6.

[0045] The second infrared radiation coating 8 is thicker than the first infrared radiation coating 7 .

[0046] The working mode of this embodiment is described below.

[0047] The reinforcement steel sheet 6 can effectively improve the overall strength of the auxiliary FPC board 2. The first infrared radiation coating 7 and the second infrared radiation coating 8 can effectively improve the thermal conductivity of the reinforcement steel sheet 6, prevent heat accumulation, and improve the heat dissipation performance of the auxiliary FPC board 2.

[0048] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A fingerprint module with an auxiliary extension structure, characterized in that: The fingerprint module with auxiliary extension structure comprises a main FPC board (1) in the shape of a long strip and a secondary FPC board (2), auxiliary lifting ears (21) are provided on both sides of the secondary FPC board (2), an LGA module (4) is provided on the upper surface of the secondary FPC board (2), a metal outer frame (5) is provided around the LGA module (4), a cover plate (3) is provided on the upper surface of the LGA module (4), and a reinforcing steel sheet (6) is provided on the lower surface of the secondary FPC board (2).

2. The fingerprint module with auxiliary extension structure according to claim 1, characterized in that: The auxiliary ear lifting device (21) is in a "C" shape.

3. The fingerprint module with auxiliary extension structure according to claim 1, characterized in that: The auxiliary ear lifting device (21) and the auxiliary FPC plate body (2) are an integrated structure.

4. The fingerprint module with auxiliary extension structure according to claim 1, characterized in that: The angle between the setting direction of the auxiliary ear lifting device (21) and the extension direction of the auxiliary FPC plate (2) is greater than 30°.

5. The fingerprint module with auxiliary extension structure according to claim 4, characterized in that: The angle between the setting direction of the auxiliary ear lifting device (21) and the extension direction of the auxiliary FPC plate (2) is 90°.

6. The fingerprint module with auxiliary extension structure according to claim 2, characterized in that: The auxiliary ear lifting device (21) has a width of 0.6 mm to 1.2 mm.

7. The fingerprint module with auxiliary extension structure according to claim 6, characterized in that: The width of the auxiliary ear lifting device (21) is 1 mm.

8. The fingerprint module with auxiliary extension structure according to claim 1, characterized in that: A stamp hole (211) is provided at the junction of the auxiliary lifting ear (21) and the auxiliary FPC plate body (2).

9. The fingerprint module with auxiliary extension structure according to claim 1, characterized in that: A first infrared radiation coating (7) is provided between the reinforcing steel sheet (6) and the auxiliary FPC plate body (2), and a second infrared radiation coating (8) is provided on the lower surface of the reinforcing steel sheet (6).

10. The fingerprint module with auxiliary extension structure according to claim 9, characterized in that: The thickness of the second infrared radiation coating (8) is greater than that of the first infrared radiation coating (7).

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