Capacitive fingerprint module

Abstract

The utility model discloses a capacitance fingerprint module group, comprising a capacitance fingerprint module and two digital processor circuit boards, the lower surface of the capacitance fingerprint module and the upper surface of the digital processor circuit board are respectively and fixedly provided with a flat cable splicing mechanism; an electronic flat cable is fixedly connected between the flat cable splicing mechanisms, and a wiping protective cover is fixedly installed on the upper surface of the capacitance fingerprint module. According to the capacitive fingerprint module, the capacitive fingerprint module, the digital processor circuit board and the electronic flat cable are more convenient to split and splice through the flat cable splicing mechanism, clamping and fixing are firmer, disassembly, assembly and maintenance of the capacitive fingerprint module are facilitated, and the surface and the thumb belly of the capacitive fingerprint module can be wiped through the wiping shield. Stain and last fingerprint residue are reduced, fingerprint identification is clearer, the cleaning structure can be detached, cleaned and replaced, a protection structure is arranged, and dust adhering to the surface of the capacitive fingerprint module is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitive fingerprint module structures, and particularly relates to a capacitive fingerprint module. Background Technique

[0002] A capacitive fingerprint module is an intelligent integrated module dedicated to secondary development and integrated applications, with characteristics such as high speed, fast recognition, and high stability. The fingerprint module is the core component of a fingerprint lock and is installed on devices such as fingerprint access control or hard disks to complete the fingerprint collection and fingerprint recognition modules.

[0003] There are certain drawbacks when the existing capacitive fingerprint modules are in use. In traditional capacitive fingerprint modules, the connection between the capacitive fingerprint module, the digital processor circuit board, and the electronic cable is not firm enough, the disassembly and assembly are not convenient enough, and both ends of the electronic cable are prone to slipping off the capacitive fingerprint module and the digital processor circuit board. Moreover, there is no cleaning and protection structure on the surface of the capacitive fingerprint module, and dust, stains, and the previous fingerprints will affect the fingerprint recognition result. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a capacitive fingerprint module, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A capacitive fingerprint module includes a capacitive fingerprint module and a digital processor circuit board. The number of the digital processor circuit boards provided is two. A cable splicing mechanism is respectively fixedly installed on the lower surface of the capacitive fingerprint module and the upper surface of the digital processor circuit board. An electronic cable is fixedly connected between the cable splicing mechanisms. A wiping protective cover is fixedly installed on the upper surface of the capacitive fingerprint module.

[0007] Preferably, the cable splicing mechanism includes a terminal block, a limit terminal, a spring piece, a rubber pressing strip, and a cable connector.

[0008] Preferably, the terminal block is fixedly installed on the lower surface of the capacitive fingerprint module and the upper surface of the digital processor circuit board. The limit terminal is fixedly installed inside the terminal block. The number of the limit terminals installed is several, and the limit terminals are evenly distributed inside the terminal block. The lower end of the limit terminal is fixedly connected to the capacitive fingerprint module and the digital processor circuit board.

[0009] Preferably, the spring piece is fixedly installed on the lower surface of the capacitive fingerprint module and the upper surface of the digital processor circuit board. The rubber pressing strip is fixedly installed at the position at the front end of the lower surface of the spring piece. The wiring harness connector is clamped between the rubber pressing strip and the limiting wiring terminal. The rear end of the wiring harness connector is fixedly connected to both ends of the electronic wiring harness. The hemispherical body at the upper end of the limiting wiring terminal is snapped into the groove on the lower surface of the wiring harness connector.

[0010] Preferably, the wiping shield includes an elastic guide rail frame, a sponge roller, a round hole plate pile, a movable pin pile and a transparent cover.

[0011] Preferably, the elastic guide rail frame is fixedly installed at a position near the edge of the upper surface of the capacitive fingerprint module. Both ends of the sponge roller are snapped into the inside of the elastic guide rail frame.

[0012] Preferably, the round hole plate pile is fixedly installed at the front end of the elastic guide rail frame. The movable pin pile is inserted into the inside of the round hole plate pile. The transparent cover is fixedly installed at the rear end of the movable pin pile.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, through the arranged wiring harness splicing mechanism, the wiring harness splicing mechanism makes it more convenient for the capacitive fingerprint module, the digital processor circuit board and the electronic wiring harness to be disassembled and spliced, the clamping and fixing is more firm, not easy to loosen, which is beneficial to the disassembly, installation and maintenance of the capacitive fingerprint module group. Through the arranged wiping shield, the wiping shield can wipe the surface of the capacitive fingerprint module and the thumb pulp, reduce stains and the residue of the previous fingerprint, make the fingerprint recognition clearer, the cleaning structure can be disassembled, cleaned and replaced, and has a protection structure, reducing the adhesion of dust to the surface of the capacitive fingerprint module. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of a capacitive fingerprint module group of the utility model;

[0016] Figure 2 It is a schematic diagram of the decomposition of the wiring harness splicing mechanism of a capacitive fingerprint module group of the utility model;

[0017] Figure 3 It is a schematic diagram of the decomposition of the wiping shield of a capacitive fingerprint module group of the utility model and the structure of the capacitive fingerprint module;

[0018] Figure 4 It is a capacitive fingerprint module group of the utility model Figure 1 The enlarged schematic diagram of part A;

[0019] Figure 5 It is a capacitive fingerprint module group of the utility model Figure 1 The enlarged schematic diagram of part B.

[0020] In the figure: 1. Capacitive fingerprint module; 2. Digital processor circuit board; 3. Cable splicing mechanism; 301. Terminal block; 302. Limit terminal; 303. Spring piece; 304. Rubber pressing strip; 305. Cable joint; 4. Electronic cable; 5. Wiping shield; 501. Elastic guide frame; 502. Sponge roller; 503. Round hole plate pile; 504. Movable pin pile; 505. Transparent cover. Detailed implementation mode

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0022] As Figure 1-5 shown, a capacitive fingerprint module includes a capacitive fingerprint module 1 and a digital processor circuit board 2. The number of digital processor circuit boards 2 is two. A cable splicing mechanism 3 is fixedly installed on the lower surface of the capacitive fingerprint module 1 and the upper surface of the digital processor circuit board 2 respectively. An electronic cable 4 is fixedly connected between the cable splicing mechanisms 3. A wiping shield 5 is fixedly installed on the upper surface of the capacitive fingerprint module 1. The cable splicing mechanism 3 makes it more convenient to disassemble, splice, clamp and fix the capacitive fingerprint module 1, the digital processor circuit board 2 and the electronic cable 4, and it is not easy to loosen, which is beneficial to the disassembly, installation and maintenance of the capacitive fingerprint module. The wiping shield 5 can wipe the surface of the capacitive fingerprint module 1 and the thumb pulp, reduce stains and the residue of the previous fingerprint, make fingerprint recognition clearer, the cleaning structure can be disassembled, cleaned and replaced, and has a protective structure to reduce dust sticking to the surface of the capacitive fingerprint module 1.

[0023] The flexible cable splicing mechanism 3 includes a terminal block 301, a limit terminal 302, a spring piece 303, a rubber pressing strip 304 and a flexible cable connector 305; the terminal block 301 is fixedly installed on the lower surface of the capacitive fingerprint module 1 and the upper surface of the digital processor circuit board 2, the limit terminal 302 is fixedly installed inside the terminal block 301, and the number of the installed limit terminals 302 is several. The limit terminals 302 are evenly distributed inside the terminal block 301, and the lower end of the limit terminal 302 is fixedly connected to the capacitive fingerprint module 1 and the digital processor circuit board 2; the spring piece 303 is fixedly installed on the lower surface of the capacitive fingerprint module 1 and the upper surface of the digital processor circuit board 2, the rubber pressing strip 304 is fixedly installed at the front end position on the lower surface of the spring piece 303, the flexible cable connector 305 is clamped between the rubber pressing strip 304 and the limit terminal 302, the rear end of the flexible cable connector 305 is fixedly connected to both ends of the electronic flexible cable 4, and the hemispherical body at the upper end of the limit terminal 302 is inserted into the groove on the lower surface of the flexible cable connector 305; the wiping shield 5 includes an elastic guide rail frame 501, a sponge roller 502, a round hole plate pile 503, a movable pin pile 504 and a transparent cover 505; the elastic guide rail frame 501 is fixedly installed at a position near the edge on the upper surface of the capacitive fingerprint module 1, and both ends of the sponge roller 502 are clamped inside the elastic guide rail frame 501; the round hole plate pile 503 is fixedly installed at the front end of the elastic guide rail frame 501, the movable pin pile 504 is inserted into the round hole plate pile 503, and the transparent cover 505 is fixedly installed at the rear end of the movable pin pile 504.

[0024] It should be noted that the utility model is a capacitive fingerprint module. When in use, in the cable splicing mechanism 3, the cable connector 305 is pulled out backwards, so that the hemisphere on the upper surface of the limit terminal 302 is withdrawn from the slot on the lower surface of the cable connector 305, and the capacitive fingerprint module 1, the digital processor circuit board 2 and the electronic cable 4 can be disassembled. When re-splicing, the cable connector 305 is inserted between the rubber strip 304 and the terminal row 301, so that the hemisphere on the upper surface of the limit terminal 302 is inserted into the groove on the lower surface of the cable connector 305, and the spring sheet 303 clamps the cable connector 305 through the rubber strip 304. The rubber strip 304 plays an anti-slip role. The cable splicing mechanism 3 makes it more convenient to disassemble and splice the capacitive fingerprint module 1, the digital processor circuit board 2 and the electronic cable 4, and the clamping and fixing are more firm and not easy to loosen, which is beneficial to the capacitive fingerprint. Module disassembly and maintenance: in the wiping shield 5, the rotatable transparent cover 505 is opened, the movable latch pile 504 rotates in the circular hole sheet pile 503, and the disinfectant is dripped into the sponge roller 502. The sponge roller 502 can be pulled along the elastic guide frame 501, and the thumb can also rub the sponge roller 502. The surface of the capacitive fingerprint module 1 and the thumb are wiped clean, and the sponge roller 502 can be withdrawn from the rear end gap of the elastic guide frame 501. When reinstalling, let the two ends of the sponge roller 502 pass through the rear end gap of the elastic guide frame 501, and re-insert the two ends of the sponge roller 502 into the interior of the elastic guide frame 501. The wiping shield 5 can wipe the surface of the capacitive fingerprint module 1 and the thumb, reduce stains and fingerprint residues from the previous time, and make fingerprint recognition clearer. The cleaning structure can be removed for cleaning and replacement, and has a protective structure to reduce dust sticking to the surface of the capacitive fingerprint module 1.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A capacitive fingerprint module, characterized in that: It includes a capacitive fingerprint module (1) and digital processor circuit boards (2). The number of the digital processor circuit boards (2) is two. Flexible cable splicing mechanisms (3) are fixedly installed on the lower surface of the capacitive fingerprint module (1) and the upper surface of the digital processor circuit boards (2) respectively. An electronic flexible cable (4) is fixedly connected between the flexible cable splicing mechanisms (3). A wiping shield (5) is fixedly installed on the upper surface of the capacitive fingerprint module (1).

2. The capacitive fingerprint module according to claim 1, wherein: The flexible cable splicing mechanism (3) includes a terminal block (301), a limit terminal (302), a spring piece (303), a rubber pressing strip (304) and a flexible cable connector (305).

3. The capacitive fingerprint module according to claim 2, wherein: The terminal block (301) is fixedly installed on the lower surface of the capacitive fingerprint module (1) and the upper surface of the digital processor circuit board (2). The limit terminal (302) is fixedly installed inside the terminal block (301). The number of the limit terminals (302) is several. The limit terminals (302) are evenly distributed inside the terminal block (301). The lower ends of the limit terminals (302) are fixedly connected to the capacitive fingerprint module (1) and the digital processor circuit board (2).

4. The capacitive fingerprint module according to claim 3, characterized in that: The spring piece (303) is fixedly installed on the lower surface of the capacitive fingerprint module (1) and the upper surface of the digital processor circuit board (2). The rubber pressing strip (304) is fixedly installed at the front end of the lower surface of the spring piece (303). The flexible cable connector (305) is clamped between the rubber pressing strip (304) and the limit terminal (302). The rear end of the flexible cable connector (305) is fixedly connected to both ends of the electronic flexible cable (4). The hemispheres at the upper ends of the limit terminals (302) are inserted into the grooves on the lower surface of the flexible cable connector (305).

5. The capacitive fingerprint module according to claim 4, wherein: The wiping shield (5) includes an elastic guide rail frame (501), a sponge roller (502), a round hole plate pile (503), a movable pin pile (504) and a transparent cover (505).

6. The capacitive fingerprint module according to claim 5, wherein: The elastic guide rail frame (501) is fixedly installed at a position near the edge of the upper surface of the capacitive fingerprint module (1). Both ends of the sponge roller (502) are clamped inside the elastic guide rail frame (501).

7. A capacitive fingerprint module according to claim 6, characterized in that: The round hole plate pile (503) is fixedly installed at the front end of the elastic guide rail frame (501). The movable pin pile (504) is inserted into the inside of the round hole plate pile (503). The transparent cover (505) is fixedly installed at the rear end of the movable pin pile (504).

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