Anti-electromagnetic attendance checking equipment

Abstract

The utility model discloses anti-electromagnetic attendance checking equipment which comprises a shell surface, and a sensing module and a shielding cover are arranged on the shell surface; the shielding cover is provided with an identification port, and the identification port faces the identification area of the sensing module. The inner side of the shielding cover is provided with an elastic part which abuts against the sensing module. The outer wall of the shielding case is convexly provided with a mounting flange part; mounting through holes are formed in the mounting flange parts, mounting counter bores are formed in the positions, corresponding to the mounting through holes, of the shell surface, and bolts penetrate through the mounting through holes and the mounting counter bores. The external shielding case connects the mounting flange part with the shell surface through the bolts on the outer wall, and when the bolts lock the shielding case, the bolts penetrate through the mounting through holes and the mounting counter bores and do not penetrate through the shell surface, that is, the bolts do not extend into the anti-electromagnetic attendance equipment, so that the bolts can be prevented from introducing electromagnetic signals into the attendance equipment, the electromagnetic interference is reduced, and the safety of the attendance equipment is improved. Therefore, the electromagnetic compatibility of the attendance checking equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of identity recognition structures, and particularly relates to an anti-electromagnetic attendance device. Background Art

[0002] An identity sensing module is an electronic device for confirming personal identity, usually including various biometric sensors, such as fingerprint recognition, iris recognition, face recognition, etc. By comparing the biometric information collected by these biometric sensors with the pre-stored data, the function of identity verification can be realized, and it is widely used in fields such as attendance systems, access control systems, and financial payment systems, with the characteristics of high efficiency, security, and convenience.

[0003] Taking an attendance device as an example, the most commonly used biometric sensor is a fingerprint sensor. For the convenience of users to collect biometric information, the fingerprint sensor is installed on the outermost side of the attendance device; considering that there is often electromagnetic interference in actual use, a shielding case is generally added to reduce the influence of external electromagnetic interference on the inside of the attendance device. Generally speaking, the above-mentioned shielding case and fingerprint sensor rely on bolts for installation to ensure the structural stability. However, as a conductor, the bolt is likely to form an electromagnetic coupling path, introducing external electromagnetic interference signals into the inside of the attendance device, resulting in insufficient electromagnetic compatibility of the attendance device. Therefore, it is necessary to develop a new attendance device to further improve its electromagnetic compatibility on the premise of ensuring the stable installation of the fingerprint sensor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-electromagnetic attendance device to solve the problem of insufficient electromagnetic compatibility of the existing attendance devices.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An anti-electromagnetic attendance device includes a housing surface, on which a sensing module and a shielding cover are arranged; an identification opening is formed on the shielding cover, and the identification opening is arranged facing the identification area of the sensing module;

[0007] An elastic part is arranged on the inner side of the shielding cover, and the elastic part abuts against the sensing module; an installation edge part protrudes from the outer wall of the shielding cover; an installation through hole is formed in the installation edge part, and an installation counterbore is arranged on the housing surface corresponding to the installation through hole, and a bolt passes through the installation through hole and the installation counterbore.

[0008] Optionally, the elastic part includes a support strip arranged between the top wall of the sensing module and the inner side of the shielding cover, and limiting strips are connected to both ends of the support strip;

[0009] Wherein, the support bar is carried on the top wall of the sensing module, the limiting bar is attached to the side wall of the sensing module, and both the support bar and the limiting bar are deformed by being pressed inward by the shielding cover.

[0010] Optionally, the sensing module includes mounting side parts arranged on both sides of the recognition area, and a first positioning groove is formed at the end of the mounting side part close to the outer shell surface; a positioning block protrudes from the position of the outer shell surface corresponding to the first positioning groove, and the first positioning groove is sleeved on the positioning block.

[0011] Optionally, a second positioning groove is formed at the end of the mounting side part far from the outer shell surface, and the second positioning groove is sleeved outside the limiting bar;

[0012] The limiting bar protrudes a first positioning inclined block in the direction close to the outer shell surface, and the positioning block also protrudes a second positioning inclined block corresponding to the first positioning inclined block; a first inclined surface of the first positioning inclined block matches a second inclined surface of the second positioning inclined block, and the first inclined surface is carried on the second inclined surface.

[0013] Optionally, the shielding cover is provided with a mounting groove at the position corresponding to the first positioning inclined block and the second positioning inclined block, and the first positioning inclined block and the second positioning inclined block pass through the mounting groove.

[0014] Optionally, a wiring hole is further formed on the outer shell surface, and the wiring hole is covered by the shielding cover.

[0015] Optionally, it further includes an inner shell surface, the inner shell surface is arranged opposite to the outer shell surface, and a mounting post protrudes from the inner shell surface in the inward direction, and the mounting counterbore extends into the mounting post.

[0016] Optionally, the sensing module is a fingerprint sensing module.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The anti-electromagnetic attendance device provided by the present utility model uses a shielding cover to cover the outside of the sensing module, and uses an identification port for the user to provide biological information to the identification area of the sensing module to achieve the function of identity recognition. For the sensing module installed on the outer shell surface, the external shielding cover presses the sensing module on the outer shell surface through an elastic part, and cooperates with the bolts on the outer wall to connect the installation edge part to the outer shell surface, so as to realize the fixation among the shielding cover, the outer shell surface and the sensing module, thereby ensuring the stability of the installation of the sensing module. At the same time, when the bolt locks the shielding cover, it passes through the installation through hole and the installation counterbore without penetrating the outer shell surface, that is, it does not extend into the interior of the anti-electromagnetic attendance device, which can avoid the bolt introducing electromagnetic signals into the interior of the attendance device, reduce electromagnetic interference, and improve the electromagnetic compatibility of the attendance device. Therefore, on the premise of stable installation, the electromagnetic compatibility of this anti-electromagnetic attendance device is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

[0021] Figure 1 It is the first partial structural schematic diagram of the anti-electromagnetic attendance device provided by the embodiment of the present utility model;

[0022] Figure 2 It is the exploded structural schematic diagram of the anti-electromagnetic attendance device provided by the embodiment of the present utility model;

[0023] Figure 3 It is Figure 2 The partial enlarged structural schematic diagram at A;

[0024] Figure 4 It is the second partial structural schematic diagram of the anti-electromagnetic attendance device provided by the embodiment of the present utility model;

[0025] Illustration: 100, outer shell surface; 101, mounting counterbore; 102, wire routing hole; 110, positioning block; 120, second positioning inclined block;

[0026] 200, sensing module; 201, recognition area; 210, mounting side; 211, first positioning groove; 212, second positioning groove;

[0027] 300, shielding cover; 301, recognition opening; 302, mounting groove; 310, mounting edge portion; 311, mounting through hole;

[0028] 400, elastic part; 410, support bar; 420, limiting bar; 430, first positioning inclined block; 500, inner shell surface; 510, mounting post. Detailed implementation manners

[0029] To make the utility model purpose, features, and advantages more obvious and understandable, the following will combine the drawings in the embodiments of the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the embodiments described below are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be intermediate components present.

[0031] The following further illustrates the technical solutions of the present utility model in conjunction with the drawings and through specific implementation manners.

[0032] As Figures 1 to 4 shown, Figure 1 is the first partial structural schematic diagram of the anti-electromagnetic attendance device provided by the embodiment of the present utility model, Figure 2 is the exploded structural schematic diagram of the anti-electromagnetic attendance device provided by the embodiment of the present utility model, Figure 3 is Figure 2 the partial enlarged structural schematic diagram at A, Figure 4 is the second partial structural schematic diagram of the anti-electromagnetic attendance device provided by the embodiment of the present utility model.

[0033] The anti-electromagnetic attendance device provided in this embodiment is applicable to scenarios with high requirements for attendance accuracy, such as security and bank authentication. In this embodiment, by improving the structure of the anti-electromagnetic attendance device, the anti-electromagnetic interference performance of the anti-electromagnetic attendance device is improved, and at the same time, the stability of the installation of the anti-electromagnetic attendance device can be achieved.

[0034] As Figure 1 and Figure 2 As shown in FIGS. and, the anti-electromagnetic attendance device in this embodiment includes a housing surface 100, on which a sensing module 200 and a shielding cover 300 are provided; the housing surface 100 is the outer surface of the housing of the anti-electromagnetic attendance device, and it usually also integrates structures such as a password keyboard and a display screen for users to operate. An identification opening 301 is provided on the shielding cover 300, and the identification opening 301 is arranged facing the identification area 201 of the sensing module 200, so that users can pass their biological information (such as fingerprints) to the identification area 201 through the identification opening 301, facilitating the anti-electromagnetic attendance device to identify whether the biological information of the user matches. An elastic part 400 is provided on the inner side of the shielding cover 300, and the elastic part 400 abuts against the sensing module 200; an installation edge part 310 protrudes from the outer wall of the shielding cover 300; an installation through hole 311 is provided on the installation edge part 310, and an installation counterbore 101 is provided on the housing surface 100 corresponding to the position of the installation through hole 311. A bolt (not shown in the figure) passes through the installation through hole 311 and the installation counterbore 101, and it should be noted that in order to ensure the stability of the installation, the bolt is preferably a metal bolt, and at the same time, the bolt does not completely pass through the housing of the anti-electromagnetic attendance device.

[0035] Specifically, for the anti-electromagnetic attendance device in this embodiment, the shielding cover 300 is used to cover the outside of the sensing module 200, and the identification opening 301 is used for users to provide biological information to the identification area 201 of the sensing module 200 to achieve the function of identity recognition. For the sensing module 200 installed on the housing surface 100, the external shielding cover 300 presses the sensing module 200 on the housing surface 100 through the elastic part 400, and cooperates with the bolt on the outer wall to connect the installation edge part 310 with the housing surface 100, so as to realize the fixation among the shielding cover 300, the housing surface 100 and the sensing module 200, thereby ensuring the stability of the installation of the sensing module 200. At the same time, when the bolt locks the shielding cover 300, it passes through the installation through hole 311 and the installation counterbore 101 and does not penetrate the housing surface 100, that is, it does not extend into the interior of the anti-electromagnetic attendance device, which can avoid the bolt introducing electromagnetic signals into the interior of the attendance device and reduce electromagnetic interference, so as to improve the electromagnetic compatibility of the attendance device. Therefore, on the premise of stable installation, the electromagnetic compatibility of this anti-electromagnetic attendance device is further improved.

[0036] As Figure 2 and Figure 3As shown, the elastic part 400 includes a support bar 410 disposed between the top wall of the sensing module 200 and the inner side of the shielding cover 300. Both ends of the support bar 410 are connected with a limiting bar 420. Among them, the support bar 410 is carried on the top wall of the sensing module 200, the limiting bar 420 is attached to the side wall of the sensing module 200, and both the support bar 410 and the limiting bar 420 are squeezed and deformed inward by the shielding cover 300.

[0037] It can be understood that through the arrangement of the support bar 410 and the limiting bar 420, the elastic part 400 is generally in a "U" shape as a whole. The support bar 410 provides support in the vertical direction, while the limiting bar 420 restricts the movement of the sensing module 200 in the horizontal direction, preventing the sensing module 200 from shifting or loosening. At the same time, the shielding cover 300 squeezes and deforms inward through the support bar 410 and the limiting bar 420, making the sensing module 200 closely attached to the outer shell surface 100, increasing the reliability and tightness of the installation, and further improving the stability of the anti-electromagnetic attendance device.

[0038] Furthermore, as Figure 2 and Figure 3 shown, the sensing module 200 includes installation side parts 210 disposed on both sides of the identification area 201. A first positioning groove 211 is formed at the end of the installation side part 210 close to the outer shell surface 100. A positioning block 110 protrudes at the position of the outer shell surface 100 corresponding to the first positioning groove 211, and the first positioning groove 211 is sleeved on the positioning block 110. Through the arrangement of the positioning block 110 and the first positioning groove 211, the installation accuracy of the sensing module 200 is improved, the installation error is reduced, and the accuracy and reliability of the overall device are enhanced.

[0039] Furthermore, a second positioning groove 212 is formed at the end of the installation side part 210 far from the outer shell surface 100, and the second positioning groove 212 is sleeved outside the limiting bar 420. The limiting bar 420 protrudes with a first positioning inclined block 430 in the direction close to the outer shell surface 100, and the positioning block 110 also protrudes with a second positioning inclined block 120 corresponding to the first positioning inclined block 430. The first inclined surface of the first positioning inclined block 430 matches the second inclined surface of the second positioning inclined block 120, and the first inclined surface is carried on the second inclined surface.

[0040] With the above settings, on the one hand, the inclined planes of the first positioning inclined block 430 and the second positioning inclined block 120 bear each other, which can effectively disperse and absorb external impact forces, improve the durability and reliability of the device in a vibrating and impact environment, and thus ensure the stability of installation. In addition, the positioning block 110 is used not only for positioning the sensing module 200 but also for supporting the second positioning inclined block 120, making the overall structure of the anti-electromagnetic attendance device more compact. In addition, the first inclined plane of the first positioning inclined block 430 matches the second inclined plane of the second positioning inclined block 120, and a self-locking structure is formed through the bearing of the inclined planes to prevent the sensing module 200 from loosening or shifting after installation, ensuring the long-term stability of the sensing module 200.

[0041] Furthermore, the shielding cover 300 is provided with installation grooves 302 corresponding to the positions of the first positioning inclined block 430 and the second positioning inclined block 120, and the first positioning inclined block 430 and the second positioning inclined block 120 pass through the installation grooves 302. It can be understood that during the installation of the shielding cover 300, the installation grooves 302 can pass through the first positioning inclined block 430 and the second positioning inclined block 120, thereby reducing the influence brought by assembly errors and enabling the shielding cover 300 to be sleeved on the sensing module 200 more smoothly.

[0042] Furthermore, as Figure 2 shown, a wire hole 102 is also provided on the outer shell surface 100, and the wire hole 102 is covered by the shielding cover 300. The wire hole 102 is used for the cable connected to the sensing module 200 to enter the interior of the anti-electromagnetic attendance device.

[0043] Furthermore, the anti-electromagnetic attendance device further includes an inner shell surface 500. The inner shell surface 500 is arranged opposite to the outer shell surface 100, and the inner shell surface 500 is convexly provided with mounting posts 510 in the inward direction, and the mounting counterbores 101 extend into the mounting posts 510. By using the mounting posts 510, the depth of the mounting counterbores 101 is extended, which means that the thread length in the mounting counterbores 101 is increased, thereby improving the stability of bolt installation.

[0044] On the basis of the above embodiments, the sensing module 200 is a fingerprint sensing module. As other alternative embodiments, the sensing module 200 can also be other modules that can identify the user's biological information, such as an optical lens, a static finger vein module, an iris recognition module, etc.

[0045] In summary, the anti-electromagnetic attendance device provided in this embodiment has the advantages of high installation stability, strong anti-electromagnetic interference ability, and compact structure.

[0046] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-electromagnetic attendance device, characterized in that: Comprising an outer shell surface (100), a sensor module (200) and a shielding cover (300) are arranged on the outer shell surface (100); an identification port (301) is provided on the shielding cover (300), and the identification port (301) is arranged toward an identification area (201) of the sensor module (200); An elastic portion (400) is provided on the inner side of the shielding cover (300), and the elastic portion (400) is in contact with the sensor module (200); a mounting rib portion (310) is convexly provided on the outer wall of the shielding cover (300); a mounting through hole (311) is provided on the mounting rib portion (310); a mounting countersunk hole (101) is provided on the outer shell surface (100) at a position corresponding to the mounting through hole (311); bolts are passed through the mounting through hole (311) and the mounting countersunk hole (101).

2. The anti-electromagnetic attendance device according to claim 1, characterized in that: The elastic part (400) comprises a support bar (410) arranged between the top wall of the sensor module (200) and the inner side of the shielding cover (300), and both ends of the support bar (410) are connected to a limit bar (420); The support bar (410) is supported on the top wall of the sensor module (200), the limit bar (420) is in contact with the side wall of the sensor module (200), and both the support bar (410) and the limit bar (420) are squeezed inwardly and deformed by the shielding cover (300).

3. The anti-electromagnetic attendance device according to claim 2, characterized in that: The sensor module (200) comprises mounting side portions (210) arranged on both sides of the identification area (201), and a first positioning groove (211) is provided on the end of the mounting side portion (210) close to the outer shell surface (100); a positioning block (110) is protruded from the outer shell surface (100) at a position corresponding to the first positioning groove (211), and the first positioning groove (211) is sleeved on the positioning block (110).

4. The anti-electromagnetic attendance device according to claim 3, characterized in that: A second positioning groove (212) is provided on the end of the mounting side portion (210) away from the outer shell surface (100), and the second positioning groove (212) is sleeved outside the limiting strip (420); The limiting strip (420) is provided with a first positioning bevel block (430) protrudingly along a direction close to the outer shell surface (100), and the positioning block (110) is further provided with a second positioning bevel block (120) protrudingly corresponding to the first positioning bevel block (430); the first inclined surface of the first positioning bevel block (430) matches the second inclined surface of the second positioning bevel block (120), and the first inclined surface is supported on the second inclined surface.

5. The anti-electromagnetic attendance device according to claim 4, characterized in that: The shielding cover (300) is provided with mounting grooves (302) at positions corresponding to the first positioning bevel block (430) and the second positioning bevel block (120); the first positioning bevel block (430) and the second positioning bevel block (120) pass through the mounting grooves (302).

6. The anti-electromagnetic attendance device according to claim 1, characterized in that: A wiring hole (102) is also provided on the shell surface (100), and the wiring hole (102) is covered by the shielding cover (300).

7. The anti-electromagnetic attendance device according to claim 1, characterized in that: It also comprises an inner shell surface (500), the inner shell surface (500) being arranged opposite to the outer shell surface (100), the inner shell surface (500) being provided with a mounting column (510) protruding inwardly, and the mounting counterbore (101) extending into the mounting column (510).

8. An anti-electromagnetic attendance device according to any one of claims 1 to 7, characterized in that: The sensor module (200) is a fingerprint sensor module.

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