Handheld palm vein recognition terminal

Abstract

The utility model discloses a hand-held palm vein recognition terminal, which relates to the technical field of palm vein recognition equipment and comprises a rear cover and an angle-adjustable support structure, the rear cover is mounted on the rear side of a palm vein recognition terminal body, and a heat extraction structure is arranged on the rear cover. The heat extraction structure comprises an exhaust port formed in the lower portion of the rear cover, a heat dissipation plate, a plurality of micro heat extraction fans installed on the heat dissipation plate and distributed at equal intervals, and a dust filtering net fixedly embedded in the inner side of the interior of the exhaust port. The terminal instrument is provided with the heat removal structure, and the heat removal rate of operation heat in the terminal instrument can be increased through operation of a plurality of micro heat removal fans installed on the heat dissipation plate, so that the heat dissipation efficiency of the terminal instrument can be conveniently improved, and normal operation of the terminal instrument can be guaranteed; and an angle-adjustable bracket structure is arranged, so that the use angle of the terminal instrument can be flexibly adjusted and controlled when the palm vein is collected, and the use flexibility and the recognition effect of the terminal instrument can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of finger and palm vein identification equipment technology, especially to hand-held palm vein identification terminal. BACKGROUND

[0002] The palm vein uses the characteristic that the human body hemoglobin can absorb near-infrared light when passing through the vein, collects the vein image under the palm skin, and extracts it as a biological feature. Compared with other biological recognition technologies such as fingerprint, eye iris or hand shape, the palm vein is extremely difficult to copy and forge, the biggest reason is that this biological feature is under the palm skin and cannot be seen with the naked eye. Because of its high security, it is also widely used in card payment application fields.

[0003] After searching, the patent with application number 202222062635.7 discloses a palm vein identification terminal, which can emit two different wavelengths of near-infrared light from one lamp bead by setting the double-crystal near-infrared LED lamp, which can simplify the structure, reduce the installation space requirement, reduce the use area of the first near-infrared polarizer, and reduce the cost; by simultaneously setting the first near-infrared polarizer and the second near-infrared polarizer, the light intensity is attenuated by using the characteristic of polarized light, and the palm vein imaging quality is improved. Through the study of the above-mentioned prior art, we find that the existing palm vein identification terminal technology has been mature, but it still has the following defects in practicability:

[0004] Firstly, the existing terminal instrument only relies on a simple heat dissipation structure for heat dissipation, which cannot quickly discharge the internal operating heat of the terminal instrument, seriously affecting the heat dissipation efficiency of the terminal instrument itself, so as to ensure the normal operation of the terminal instrument;

[0005] Secondly, it is not convenient to flexibly control the use angle of the terminal instrument when collecting the palm vein, which may cause poor recognition effect of the terminal instrument. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the shortcomings in the prior art and provides a hand-held palm vein identification terminal.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The hand-held palm vein identification terminal comprises a rear cover installed at the rear edge of the palm vein identification terminal body and an angle-adjustable support structure, and a heat dissipation structure is arranged on the rear cover.

[0009] The heat dissipation structure comprises an exhaust port arranged on the lower part of the rear cover, a heat dissipation plate fixed on the outer side of the exhaust port through bolts, a plurality of micro heat dissipation fans installed on the heat dissipation plate and arranged at equal distances, and a dust filter screen fixedly embedded on the inner side of the exhaust port.

[0010] Preferably, the two side inner walls of the rear cover are fixed with iron inserts, and the two side outer walls of the palm vein recognition terminal body are provided with insertion slots.

[0011] Preferably, the bottom inner walls of the two insertion slots are fixed with magnets, the two iron inserts are respectively inserted into the two insertion slots, and the bottoms of the two iron inserts are respectively fixed and attracted to the tops of the two magnets.

[0012] Preferably, the angle-adjustable support structure comprises a support frame, an angle adjusting shaft rotatably installed on the upper portion of the support frame, a fixed cover fixedly connected to the side wall of the support frame, a worm gear fixedly sleeved on one end of the angle adjusting shaft, a control shaft rotatably installed in the fixed cover, a worm rotatably sleeved on the control shaft, and a rotating cap fixed to the top end outer wall of the control shaft.

[0013] Preferably, the worm and the worm gear are in meshing with each other and are located in the fixed cover, and the rear edge middle portion outer wall of the rear cover and the angle adjusting shaft are jointly fixed with the same connecting block.

[0014] Preferably, the size of the heat dissipation plate and the filter screen is matched with the size of the air outlet.

[0015] The palm vein recognition terminal body has the advantages that:

[0016] 1. The heat dissipation structure is arranged, the multiple miniature heat dissipation fans installed on the heat dissipation plate can accelerate the discharge rate of the internal operating heat of the terminal instrument, thereby facilitating the improvement of the heat dissipation efficiency of the terminal instrument, and the setting of the filter screen can avoid the entry of external dust into the terminal instrument to affect the terminal instrument.

[0017] 2. The angle-adjustable support structure is arranged, the rotating cap can drive the worm on the control shaft to rotate, then the worm gear meshing with the worm can drive the angle adjusting shaft to rotate, under the connection of the connecting block, the angle adjusting shaft can flexibly control the inclination angle of the palm vein recognition terminal body, so that the use angle of the terminal instrument can be flexibly controlled when the palm vein is collected, which is helpful to improve the flexibility and recognition effect of the terminal instrument. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole rear view of the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structure schematic diagram of the utility model in the support frame and the rear cover separation state;

[0020] Figure 3 It is a three-dimensional enlarged structure schematic diagram of the air outlet area of the utility model;

[0021] Figure 4 It is the three-dimensional structure schematic view of the front view of the palm vein recognition terminal body in the utility model;

[0022] Figure 5 It is the side view enlarged structure schematic view of the vertical section of the fixed cover in the utility model.

[0023] In the drawing: 1, palm vein recognition terminal body; 2, back cover; 3, exhaust port; 4, heat sink; 5, miniature heat dissipation fan; 6, dust filter screen; 7, iron insert; 8, insert slot; 9, magnet; 10, support frame; 11, angle adjusting shaft; 12, fixed cover; 13, worm gear; 14, control shaft; 15, worm; 16, rotating cap; 17, connecting block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Embodiment 1, refer to Figures 1-4 Handheld palm vein recognition terminal, including the back cover 2 installed in the back of palm vein recognition terminal body 1, the model of palm vein recognition terminal body 1 is Z-PVT332, it belongs to the existing mature technology, this embodiment does not make detailed description, the back cover 2 is equipped with heat dissipation structure;

[0026] Specifically, the heat dissipation structure includes the exhaust port 3 opened in the lower part of the back cover 2, the heat sink 4 fixed in the inside outside of the exhaust port 3 by bolt, the multiple miniature heat dissipation fans 5 installed on the heat sink 4 and equidistantly distributed and the dust filter screen 6 fixedly embedded in the inside of the exhaust port 3, the size of the heat sink 4 and the dust filter screen 6 is adapted to the size of the exhaust port 3; More specifically, through the operation of the multiple miniature heat dissipation fans 5 installed on the heat sink 4, the discharge rate of internal operating heat of the terminal instrument can be accelerated, thereby the heat dissipation efficiency of the terminal instrument itself is improved, which is beneficial to ensure the normal operation of the terminal instrument, and the setting of the dust filter screen 6 can avoid the dust from outside into the terminal instrument to cause influence;

[0027] Specifically, the two side inner walls of the back cover 2 are fixed with iron inserts 7, the two side outer walls of the palm vein recognition terminal body 1 are provided with slots 8, the bottom inner walls of the two slots 8 are fixed with magnets 9, the two iron inserts 7 are respectively inserted into the two slots 8, and the bottoms of the two iron inserts 7 are fixedly attracted to the tops of the two magnets 9; more specifically, the two iron inserts 7 on the back cover 2 are aligned with the two slots 8 and inserted downward, after being inserted in place, the two iron inserts 7 are attracted by the two magnets 9 to complete the fixing effect of the back cover 2, and the back cover 2 can be disassembled by slightly pushing it upward to make the two iron inserts 7 completely slide out of the two slots 8, at this time, not only the internal maintenance of the terminal instrument is facilitated, but also the dust cleaning treatment of the dust filter screen 6 and the micro heat exhaust fan 5 on the heat dissipation plate 4 is facilitated.

[0028] Embodiment 2, refer to Figures 1-2 and Figure 5 This embodiment is optimized on the basis of Embodiment 1, specifically: the handheld palm vein recognition terminal also has an angle-adjustable support structure.

[0029] Specifically, the angle-adjustable support structure includes a support frame 10, an angle adjusting shaft 11 rotatably installed on the upper part of the support frame 10, a fixed cover 12 fixedly connected to the side wall of the support frame 10, a worm gear 13 fixedly sleeved on one end of the angle adjusting shaft 11, a control shaft 14 rotatably installed in the fixed cover 12, a worm 15 fixedly sleeved on the control shaft 14, and a rotating cap 16 fixed to the top outer wall of the control shaft 14.

[0030] Further, the worm 15 and the worm gear 13 are in meshing with each other and are located in the fixed cover 12, and the same connecting block 17 is fixedly connected between the rear middle outer wall of the back cover 2 and the angle adjusting shaft 11, so that the stability of the palm vein recognition terminal body 1 during angle adjustment can be ensured by the self-locking performance of the meshing of the worm 13 and the worm 15.

[0031] In use, the rotating cap 16 can drive the worm 15 on the control shaft 14 to rotate, and then the worm gear 13 meshing with the worm 15 will drive the angle adjusting shaft 11 to rotate, and under the connection of the connecting block 17, the angle adjusting shaft 11 can flexibly control the inclination angle of the palm vein recognition terminal body 1, so as to facilitate the flexible adjustment of the use angle of the terminal instrument when collecting palm veins, which helps to improve the flexibility of the use of the terminal instrument and the recognition effect.

[0032] Working principle: first, in the use process, through the rotating cap 16 can drive the operation of the shaft 14 on the worm 15 rotation, then with the worm 15 meshing worm gear 13 will drive the angle adjustment shaft 11 rotation, under the interface block 17 of the interface effect, angle adjustment shaft 11 can flexibly control the inclination angle of palm vein identification terminal body 1, so as to facilitate the use of the angle of the terminal instrument in the collection of palm vein flexible regulation and control, help to improve the flexibility of the terminal instrument use and identification effect;

[0033] Secondly, in the terminal instrument operation, through the operation of the multiple miniature heat exhaust fan 5 installed on the heat sink 4, can accelerate the discharge rate of the internal operation of the terminal instrument heat, so as to facilitate the improvement of the heat dissipation efficiency of the terminal instrument itself, is favorable to guarantee the normal operation of the terminal instrument, at the same time, the setting of the dust screen 6 can avoid the dust from the outside into the terminal instrument to cause the influence.

[0034] The above, only for the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range of the present application disclosed, according to the technical scheme of the present application and the utility model concept to replace or change, should be covered in the protection scope of the present application.

Claims

1. A hand-held palm vein recognition terminal comprising a rear cover (2) installed at the rear side of a palm vein recognition terminal body (1), characterized in that, Also include angle adjustable support structure, the back cover (2) is equipped with heat exhaust structure; The heat exhaust structure includes an exhaust port (3) opened in the lower part of the back cover (2), a heat sink (4) fixed inside the exhaust port (3) by bolts, a plurality of micro heat exhaust fans (5) installed on the heat sink (4) and evenly distributed, and a dust filter screen (6) fixedly embedded inside the exhaust port (3).

2. The handheld palm vein recognition terminal according to claim 1, characterized by The two side inner walls of the back cover (2) are fixed with iron inserts (7), and the two side outer walls of the palm vein identification terminal body (1) are provided with insertion grooves (8).

3. The handheld palm vein recognition terminal according to claim 2, characterized by The bottom inner walls of the two insertion grooves (8) are fixed with magnets (9), the two iron inserts (7) are respectively inserted into the two insertion grooves (8), and the bottoms of the two iron inserts (7) are respectively fixedly attracted to the tops of the two magnets (9).

4. The handheld palm vein recognition terminal according to claim 1, characterized by The angle adjustable support structure includes a support frame (10), an angle adjusting shaft (11) rotatably installed on the upper part of the support frame (10), a fixed cover (12) fixedly connected to the side wall of the support frame (10), a worm wheel (13) fixedly sleeved on one end of the angle adjusting shaft (11), a control shaft (14) rotatably installed in the fixed cover (12), a worm (15) fixedly sleeved on the control shaft (14), and a rotating cap (16) fixed to the top outer wall of the control shaft (14).

5. The handheld palm vein recognition terminal according to claim 4, wherein The worm (15) and the worm wheel (13) are engaged with each other and located in the fixed cover (12), and the same connecting block (17) is fixed between the rear middle outer wall of the back cover (2) and the angle adjusting shaft (11).

6. The handheld palm vein recognition terminal according to claim 1, wherein The sizes of the heat sink (4) and the dust filter screen (6) are adapted to the size of the exhaust port (3).

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