Fingerprint startup module

Abstract

The utility model discloses a fingerprint power-on module, including: annular lampshade, button and fingerprint module, the button includes button body, fan-shaped shrapnel, serial rib, connecting piece, elastic arm and limit rib, fan-shaped shrapnel is evenly distributed around the button body, the serial rib is annularly arranged outside the fan-shaped shrapnel, the elastic arm is arranged in the middle of the button body, the elastic arm is arranged in the middle of the button body, and the limit rib is arranged in the middle of the button body. A plurality of fan-shaped elastic plates are connected at the same time through a connecting piece and an elastic arm on the inner side, the top of one of the fan-shaped elastic plates is removed, the access position of a fingerprint FPC is reserved, and series ribs at the corresponding positions are also disconnected; a plurality of sections of strip-shaped lamp grooves are annularly formed in the annular lampshade body, key assembling grooves matched with the ribs connected in series are formed in the inner sides of the lamp grooves in the back face of the annular lampshade body, a plurality of through grooves are formed between the key assembling grooves and the inner ring, and key FPC access positions are further arranged on the back face of the annular lampshade body. Through the above mode, the forming strength of the button can be improved, the reset capability is enhanced, and the lighting effect is convenient to verify and adjust.

Description

Technical Field

[0001] The utility model relates to the field of computer equipment, in particular to a fingerprint power-on module. Background Art

[0002] As consumer electronics, better lighting effects and a uniform gap appearance are required to attract consumers. Some current fingerprint card machine modules, such as the fingerprint power-on module of the Lenovo laptop Y series, have been found to have some defects in the structure of the lamp cover and the button during actual use. Specifically, the space for adjusting the lighting effect on the lamp cover is small, and the lamp slots correspond to the lamp beads one by one. When adjusting the lighting effect, it is necessary to re-mold the mold before adjusting the number and placement position of the LED lamp beads, which affects the verification and improvement of the lighting effect, and the cost of modifying the mold is relatively high. The button adopts a multi-arm lifting structure, and the elastic arms are dispersed around. During multiple pressing and recovery processes, the bottom end of the elastic arm is prone to displacement due to deformation, which in turn affects the recovery state of the button, resulting in uneven gaps between the button and the surrounding area, directly affecting the appearance of the product. Summary of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a fingerprint power-on module, which can facilitate the verification and adjustment of the lighting effect while improving the forming strength of the button and enhancing the reset ability of the button.

[0004] To solve the above technical problems, a technical solution adopted by the present utility model is: to provide a fingerprint power-on module, the fingerprint power-on module comprising: an annular lamp shade, a button, and a fingerprint module. The button is assembled with the annular lamp shade, the fingerprint module is fixed on the button, two mounting ears are symmetrically arranged on the outer side of the annular lamp shade, the inner ring of the annular lamp shade is a button hole, the button comprises a button body, a sector-shaped elastic sheet, a series connection rib, a connection piece, an elastic arm, and a limiting rib. There are 3 to 5 sector-shaped elastic sheets in total, which are evenly arranged around the button body. The radius of the sector-shaped elastic sheet matches the size of the inner ring of the annular lamp shade. The series connection rib is arranged around the outer side of the sector-shaped elastic sheet. Just the same number of connection pieces as the sector-shaped elastic sheets are arranged inside the series connection rib. The number of elastic arms is also the same as the number of sector-shaped elastic sheets. One end of each elastic arm is fixed on a connection piece and the other end is fixed on a sector-shaped elastic plate. One of the multiple sector-shaped elastic sheets has its top removed to leave an access position for the fingerprint FPC, and the corresponding series connection rib is also disconnected; multiple strip-shaped lamp slots are arranged around the annular lamp shade body, and a transparent lamp slot cover plate is installed on the outer side of each lamp slot. On the inner side of the lamp slot on the back of the annular lamp shade, there is a button assembly slot matching the size of the series connection rib. Multiple through slots for the connection pieces to pass through are arranged between the button assembly slot and the inner ring. On one side of the back of the annular lamp shade body corresponding to the access position of the fingerprint FPC, there is also a button FPC access position; during assembly, the series connection rib is snapped into the button assembly slot, the connection piece is snapped into the corresponding through slot, the button body and the sector-shaped elastic sheet are snapped into the inner ring of the annular lamp shade, the fingerprint module is lifted, and the fingerprint FPC is connected to the fingerprint module through the access position.

[0005] In a preferred embodiment of the present utility model, a plurality of positioning structures are further arranged on the outer side of the series connection rib, and the assembly position of each positioning structure is located in the space between two adjacent lamp slots. A positioning slot matching the positions of the plurality of positioning structures is further arranged on the outer side of the button assembly slot. The positioning structure comprises a hanging ear and a limiting rib. The hanging ear is arranged in the middle area of the series connection rib, a positioning hole is arranged in the middle of the hanging ear, the limiting rib is arranged in the end area of the series connection rib, a first limiting slot corresponding to the assembly position of the hanging ear is arranged on the button assembly slot, the first limiting slot 107 matches the shape of the hanging ear, and a positioning post matching the positioning hole on the hanging ear is arranged in the first limiting slot. A second limiting slot is arranged corresponding to the assembly position of the limiting rib, and the limiting slot matches the shape of the limiting rib.

[0006] In a preferred embodiment of the present utility model, an installation adjustment slot is further arranged on the outer side of the button assembly slot, and the installation adjustment slot is arranged in the space between two adjacent lamp slots.

[0007] In a preferred embodiment of the present utility model, a convex block is provided in the middle of the button body.

[0008] In a preferred embodiment of the present utility model, the sum of the central angles corresponding to all the fan-shaped elastic pieces does not exceed 240°.

[0009] The beneficial effects of the present utility model are as follows: The present utility model is an optimized improvement aimed at some problems that occur in the existing structure during long-term use. On the one hand, the dot-shaped slots on the lampshade are changed to long-strip-shaped surrounding slots, so that when conducting light effect verification and debugging, the number and placement position of the lamp beads can be adjusted in the slots as needed, without the need for major trimming of the mold, reducing the cost during the R & D process. On the other hand, a series of rib structures are used to connect the bottoms of the elastic arms around the button together to form a whole, and then fixed to the back of the lampshade. In this way, not only the overall molding strength of the button is improved, and the tactile feedback during pressing is better, but also due to the effect of the series of ribs, the reset ability of the elastic arms is stronger, which can meet the requirements of long-term repeated pressing. Description of the Drawings

[0010] Figure 1 is a schematic diagram of the back structure of a preferred embodiment of the present utility model;

[0011] Figure 2 is a schematic diagram of the front structure of the shown embodiment;

[0012] Figure 3 is a schematic diagram of the lampshade structure in the shown embodiment;

[0013] Figure 4 is a schematic diagram of the button structure in the shown embodiment;

[0014] The markings of each component in the drawings are as follows:

[0015] 1. Ring-shaped lampshade, 2. Button, 3. Fingerprint module, 4. Fingerprint FPC, 5. Button FPC;

[0016] 101. Ear, 102. Lamp slot, 103. Button assembly slot, 104. Inner ring, 105. Installation and adjustment slot, 106. Second limit slot, 107. First limit slot, 108. Through slot, 109. Button FPC access position, 1010. Lamp slot cover plate.

[0017] 201. Convex block, 202. Fan-shaped elastic piece, 203. Series of ribs, 204. Connection piece, 205. Elastic arm, 206. Limit rib, 207. Hanging ear. Detailed Embodiment

[0018] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model clearer and more definite.

[0019] Please refer to Figures 1 to 4 , the embodiments of the present utility model include:

[0020] A fingerprint power-on module, the fingerprint power-on module includes: an annular lamp shade 1, a button 2 and a fingerprint module 3. The button 2 is assembled with the annular lamp shade 1, the fingerprint module 3 is fixed on the button 2. Two ears 101 with positioning holes are symmetrically arranged on the outer side of the annular lamp shade 1. The inner ring 104 of the annular lamp shade 1 is a button hole. The button 2 includes a button body, a sector-shaped elastic piece 202, a series connection rib 203, a connecting piece 204, an elastic arm 205 and a limiting rib 206. The number of the sector-shaped elastic pieces 202 is generally 3 - 5, and they are evenly arranged around the button body. In actual production, there are 3. The radius of the sector-shaped elastic piece 202 matches the size of the inner ring 104 of the annular lamp shade. The series connection rib 203 is arranged around the outer side of the sector-shaped elastic piece 202. Three connecting pieces 204 are arranged on the inner side of the series connection rib 203. There are 3 elastic arms 205 in total. One end of each elastic arm 205 is fixed on a connecting piece 204 and the other end is fixed on a sector-shaped elastic plate 202. The top of one of the 3 sector-shaped elastic pieces 202 is removed to leave an access position for the fingerprint FPC 4, and the corresponding series connection rib 203 is also disconnected. Three strip-shaped lamp grooves 102 are arranged around the annular lamp shade 1 body. A transparent lamp groove cover plate 1010 is installed on the outer side of each lamp groove 102. A button assembly groove 103 matching the size of the series connection rib 203 is arranged on the inner side of the lamp groove 102 on the back of the annular lamp shade 1. Three through grooves 108 for the connecting piece 204 to pass through are arranged between the button assembly groove 103 and the inner ring. On one side of the annular lamp shade 1 body corresponding to the access position of the fingerprint FPC 4, there is also a button FPC access position 109.

[0021] During assembly, the series connection rib 203 is snapped into the button assembly groove 103, the connecting piece 204 is snapped into the corresponding through groove 108, the fingerprint FPC 4 is connected to the fingerprint module 3 at the top through the access position, and the button body and the sector-shaped elastic piece 202 are snapped into the inner ring 104 of the annular lamp shade 1 to lift the fingerprint module 3. When pressed, the sector-shaped elastic piece 202 can rotate downward along the inner wall of the inner ring 104 under the action of the elastic arm 205 and can quickly rotate upward and bounce back after being released. Since there are 3 sector-shaped elastic pieces 202, the area of a single sector-shaped elastic piece 202 is relatively large, which has a good bearing balance for the pressing action and is also convenient for processing.

[0022] On the outer side of the series rib 203, there are also two positioning structures, namely the hanging ear 204 and the limiting rib 206. The hanging ear 207 is arranged in the middle area of the series rib 203. There is a positioning hole in the middle of the hanging ear 207. The limiting rib 206 is arranged in the end area of the series rib 203. The assembly positions of the hanging ear 207 and the limiting rib 206 are respectively located in the spaces between two different adjacent lamp slots 102. Corresponding to the assembly position of the hanging ear 207, a first limiting slot 107 is arranged on the outer side of the key assembly slot 103. The first limiting slot 107 matches the shape of the hanging ear 207. A positioning post matching the positioning hole on the hanging ear 207 is arranged in the first limiting slot 107. Corresponding to the assembly position of the limiting rib 206, a second limiting slot 106 is arranged. The second limiting slot 106 matches the shape of the limiting rib 206. After such installation, the positioning post and the limiting rib 206 together can effectively fix the position of the series rib 203, and further fix the connection position of the elastic arm 205. In this way, after being deformed by pressing, the elastic arm 205 can still return to the initial position.

[0023] On the outer side of the key assembly slot 103, there is also an installation adjustment slot 105. The installation adjustment slot 105 is arranged in the space between two adjacent lamp slots 102. In this way, when assembling the key 2 and the annular lamp cover 1, the position of the series rib 203 can be adjusted by using the space of the installation adjustment slot 105, so that the series rib 203 just falls into the key assembly slot 103.

[0024] There is a convex block 201 in the middle of the key body. In this way, when pressing, the influence of the elastic arm 205 on the activity space can be reduced, the sensitivity of the key 2 can be improved, and the key FPC 5 can be quickly touched after being stressed to complete the switch action.

[0025] The sum of the central angles corresponding to all the sector-shaped elastic pieces 202 does not exceed 270°. In this application, the central angle of each sector-shaped elastic piece 202 is 90°, and the central angle of the empty part between two adjacent sector-shaped elastic pieces 202 is 30°. Only in this way can enough space for the elastic arm 205 to move be left when pressing.

[0026] The utility model optimizes the existing fingerprint power-on module. On the one hand, a strip-shaped lamp groove 102 is arranged around the annular lamp shade 1, and the number and position of the lamp beads in the lamp groove 102 can be adjusted according to actual needs around the button 2 for light effect verification and debugging, without major repairs to the mold, reducing the R & D cost. On the other hand, in the button structure, all the elastic arms 205 are connected in series by the series rib 203, and positioned by the hanging ear 207 and the limiting rib 206. In this way, not only the forming strength of the whole button structure is improved, but also since the series rib 203 has been positioned, the corresponding ends of the elastic arms 205 are also positioned, and the elastic arms have stronger recovery ability after being deformed by force and will not produce displacement deviation after long-term use.

[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A fingerprint startup module, the fingerprint startup module comprising: An annular lampshade, a button and a fingerprint module, wherein the button is assembled with the annular lampshade, the fingerprint module is fixed on the button, two mounting ears are symmetrically arranged on the outer side of the annular lampshade, and the inner circle of the annular lampshade is a button hole, characterized in that the button comprises a button body, a fan-shaped spring piece, a series rib, a connecting piece, an elastic arm and a limiting rib, the number of the fan-shaped spring pieces is 3 to 5 in total, and they are evenly arranged around the button body, the radius of the fan-shaped spring piece matches the inner circle size of the annular lampshade, the series rib is arranged on the outer side of the fan-shaped spring piece, and the inner side of the series rib is provided with a connecting piece exactly the same as the number of the fan-shaped spring pieces, the number of the elastic arms is also the same as the number of the fan-shaped spring pieces, each elastic arm is fixed on a connecting piece at one end and fixed on a fan-shaped spring plate at the other end, the top of one of the multiple fan-shaped spring pieces is removed to leave an access position for the fingerprint FPC, and the series ribs at the corresponding position are also disconnected; The annular lampshade body is provided with a plurality of strip-shaped lamp grooves, each of which is provided with a transparent lamp groove cover plate on the outside, the inner side of the lamp groove on the back of the annular lampshade is provided with a key assembly groove matching the size of the series ribs, a plurality of through grooves for the connecting piece to pass through are provided between the key assembly groove and the inner ring, and a key FPC access position is also provided on one side of the back of the annular lampshade body corresponding to the access position of the fingerprint FPC; During assembly, the series ribs are inserted into the button assembly grooves, the connecting pieces are inserted into the corresponding through grooves, the button bodies and the fan-shaped spring pieces are inserted into the inner ring of the annular lampshade to hold up the fingerprint module, and the fingerprint FPC is connected to the fingerprint module through the access position.

2. The fingerprint startup module according to claim 1, characterized in that: A plurality of positioning structures are also provided on the outside of the series ribs, and the assembly position of each positioning structure is located in the empty space between two adjacent lamp slots. A positioning slot matching the positions of the plurality of positioning structures is also provided on the outside of the key assembly slot.

3. The fingerprint startup module according to claim 2, characterized in that: The positioning structure includes a hanging ear and a limiting rib, the hanging ear is arranged in the middle area of ​​the series ribs, a positioning hole is provided in the middle of the hanging ear, the limiting rib is arranged in the end area of ​​the series ribs, a first limiting groove corresponding to the assembly position of the hanging ear is provided on the key assembly groove, the first limiting groove matches the shape of the hanging ear, a positioning column matching the positioning hole on the hanging ear is provided in the first limiting groove, a second limiting groove is provided corresponding to the assembly position of the limiting rib, and the limiting groove matches the shape of the limiting rib.

4. The fingerprint startup module according to claim 1, characterized in that: An installation adjustment groove is also provided on the outer side of the button assembly groove, and the installation adjustment groove is arranged in the space between two adjacent lamp grooves.

5. The fingerprint startup module according to claim 1, characterized in that: A convex block is arranged in the middle of the button body.

6. The fingerprint startup module according to claim 1, characterized in that: The sum of the central angles corresponding to all the sector-shaped shrapnel does not exceed 240°.

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