Fingerprint identification module and electronic device

By designing and positioning the concave and convex parts on the case of the fingerprint identification module, and combining the alignment structure to adjust the assembly orientation of the fingerprint identification device, the problem of lack of universality and high cost in the existing technology is solved, and compatibility and cost reduction with different press stroke keys are achieved.

CN120020675APending Publication Date: 2025-05-20ACER INC
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Patent Information

Application Number
CN202311546503.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-20
Publication Date
2025-05-20

AI Technical Summary

Technical Problem

When designing existing fingerprint identification modules, different types of housings need to be produced according to the buttons of different press strokes, resulting in the lack of universality and excessive cost.

Method used

By designing a case including positioning concave and positioning convex, combined with the alignment structure of the fingerprint identifier, the assembly orientation of the fingerprint identifier on the case is adjusted so that its contact surface can be as high as the key surface with different pressing strokes.

Benefits of technology

It realizes the versatility of the fingerprint recognition module, is compatible with buttons with different press strokes, reduces production costs and improves assembly flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

A fingerprint identification module comprises a casing and a fingerprint identifier. The casing is provided with a top surface, a bottom surface and an opening penetrating through the top surface and the bottom surface. And a positioning concave part and a positioning convex part connected with the positioning concave part are arranged around the opening. The fingerprint identifier is installed on the casing and comprises a fingerprint identification body and an alignment structure surrounding the fingerprint identification body. The fingerprint identification body passes through the opening and protrudes out of the top surface. The alignment structure comprises an alignment concave part and an alignment convex part connected with the alignment concave part. In the first assembly direction, the alignment convex part is in contact with the positioning concave part, and the alignment concave part is in contact with the positioning convex part, so that the fingerprint identification body protrudes by a first height relative to the top surface. And in the second assembly direction, the alignment convex part is in contact with the positioning convex part, so that the fingerprint identification body protrudes by a second height lower than the first height relative to the top surface. The invention also provides an electronic device.
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Description

Technical Field

[0001] The present invention relates to a fingerprint recognition module, and more particularly to a fingerprint recognition module and an electronic device including the fingerprint recognition module. Background Art

[0002] To prevent the leakage of private, sensitive or confidential information to enhance information security, a notebook computer integrated with a fingerprint identifier has been proposed. Specifically, the fingerprint identifier usually adopts a button structure type and is disposed around the touchpad or around the keyboard, or integrated into the keyboard. In addition, the top surface of the fingerprint identifier serves as the contact surface for the finger pulp and is set to be at the same height as the key surface (i.e., the pressing surface) of the keys in the keyboard to meet the requirements of visual design.

[0003] Furthermore, the keys in different types of keyboards have different pressing strokes. Correspondingly, the heights of the key surfaces of the keys with different pressing strokes are also different. On the premise that the top surface of the fingerprint identifier must be designed to be at the same height as the key surface of the keys, manufacturers must produce different types of fingerprint identifiers or casings to match the keys with different pressing strokes. In terms of manufacturing and assembly, not only is the universality lacking, but it is also difficult to reduce costs. Summary of the Invention

[0004] The present invention provides a fingerprint recognition module and an electronic device, which helps to reduce costs.

[0005] The present invention proposes a fingerprint recognition module, including a casing and a fingerprint identifier. The casing has a top surface, a bottom surface opposite to the top surface, and an opening penetrating the top surface and the bottom surface. The bottom surface is provided with a positioning recess and a positioning protrusion connected to the positioning recess around the opening. The fingerprint identifier is installed in the casing and includes a fingerprint recognition body and an alignment structure surrounding the fingerprint recognition body. The fingerprint recognition body passes through the opening and protrudes from the top surface. The alignment structure includes an alignment recess and an alignment protrusion connected to the alignment recess. In a first assembly orientation, the alignment protrusion contacts the positioning recess, and the alignment recess contacts the positioning protrusion, so that the fingerprint recognition body protrudes from the top surface by a first height. In a second assembly orientation, the alignment protrusion contacts the positioning protrusion, so that the fingerprint recognition body protrudes from the top surface by a second height lower than the first height.

[0006] The present invention provides an electronic device, which includes a housing, a button, and a fingerprint identifier. The housing has a top surface, a bottom surface opposite to the top surface, a first opening penetrating the top surface and the bottom surface, and a second opening penetrating the top surface and the bottom surface. The bottom surface is provided with a positioning recess and a positioning protrusion connected to the positioning recess around the second opening. The button passes through the first opening and protrudes from the top surface. The key surface of the button protrudes from the top surface by a pressing height. One of the first assembly orientation and the second assembly orientation is selected according to the pressing height to mount the fingerprint identifier on the housing. The fingerprint identifier includes a fingerprint identification body and an alignment structure surrounding the fingerprint identification body. The fingerprint identification body passes through the second opening and protrudes from the top surface. The alignment structure includes an alignment recess and an alignment protrusion connected to the alignment recess. In the first assembly orientation, the alignment protrusion contacts the positioning recess, and the alignment recess contacts the positioning protrusion, so that the fingerprint identification body protrudes from the top surface by a first height. In the second assembly orientation, the alignment protrusion contacts the positioning protrusion, so that the fingerprint identification body protrudes from the top surface by a second height lower than the first height.

[0007] Based on the above, by adjusting the assembly orientation of the fingerprint identifier on the housing, the contact surface of the fingerprint identification body can be set to be flush with the key surface of one of at least two buttons with different pressing strokes. Therefore, in terms of manufacturing and assembly, the fingerprint identification module of the present invention and the electronic device including this fingerprint identification module improve problems such as lack of versatility and high cost.

[0008] To make the above features and advantages of the present invention more obvious and understandable, specific embodiments are hereinafter given and described in detail in conjunction with the accompanying drawings. Brief Description of the Drawings

[0009] Figure 1 is a partial schematic view of an electronic device according to an embodiment of the present invention.

[0010] Figure 2A is Figure 1 a partial cross-sectional schematic view of the electronic device along line segment A-A.

[0011] Figure 2B is Figure 1 a partial cross-sectional schematic view of the electronic device along line segment B-B.

[0012] Figure 2C is Figure 1 a partial enlarged exploded schematic view of the electronic device.

[0013] Figure 2D is Figure 2C a partial enlarged exploded schematic view from another perspective.

[0014] Figure 3A and Figure 3B is a partial cross-sectional schematic view of an electronic device according to another embodiment of the present invention.

[0015] Figure 3C It is a partially enlarged exploded view of an electronic device according to another embodiment of the present invention.

[0016] Figure 3D It is Figure 3C a partially enlarged exploded view from another perspective.

[0017] Among them,

[0018] 10, 10A: Electronic device;

[0019] 20: Housing;

[0020] 20a: Top surface;

[0021] 20b: Bottom surface;

[0022] 21: First opening;

[0023] 22: Second opening;

[0024] 23: Positioning recess;

[0025] 23a, 112c: Concave surface;

[0026] 24: Positioning protrusion;

[0027] 24a, 112d: Convex surface;

[0028] 30, 30a: Button;

[0029] 31, 31a: Button surface;

[0030] 100: Fingerprint identification module;

[0031] 110: Fingerprint identifier;

[0032] 111: Fingerprint identification body;

[0033] 111a: Top;

[0034] 111b: Bottom;

[0035] 111c: Contact surface;

[0036] 112: Alignment structure;

[0037] 112a: Alignment recess;

[0038] 112b: Alignment protrusion;

[0039] H1, H2: Pressing height;

[0040] S1: First height;

[0041] S2: Second height. Detailed implementation manners

[0042] Figure 1 is a partial schematic view of an electronic device according to an embodiment of the present invention. Please refer to Figure 1 , in this embodiment, the electronic device 10 may be a part of a notebook computer, such as a body with logical computing capabilities or a body provided with a central processing unit, a graphics processing unit, a keyboard, and a touchpad. On the other hand, the fingerprint recognition module 100 is integrated into the electronic device 10, and may be integrated into the keyboard, but is not limited thereto.

[0043] Figure 2A is Figure 1 a partial cross-sectional schematic view of the electronic device along line segment A-A. Figure 2B is Figure 1 a partial cross-sectional schematic view of the electronic device along line segment B-B. Figure 2C is Figure 1 a partial enlarged exploded schematic view of the electronic device. Figure 2D is Figure 2C a partial enlarged exploded schematic view from another perspective. Figure 2C and Figure 2D show a partial enlarged exploded schematic view of the area where the fingerprint recognition module 100 is located.

[0044] As shown in Figure 1 , Figure 2A , Figure 2C and Figure 2D shown, or, as shown in Figure 1 , Figure 2B , Figure 2C and Figure 2D shown, in this embodiment, the electronic device 10 includes a housing 20, a button 30, and a fingerprint identifier 110. The housing 20 has a first opening 21 for accommodating the button 30 and a second opening 22 for accommodating the fingerprint identifier 110, and both the first opening 21 and the second opening 22 penetrate through the top surface 20a and the bottom surface 20b of the housing 20 opposite to the top surface 20a. For example, the fingerprint recognition module 100 is integrated into the electronic device 10 and shares the housing 20 with the electronic device 10. In addition, the fingerprint identifier 110 is a part of the fingerprint recognition module 100 and is suitable for being assembled into the housing 20.

[0045] Furthermore, the button 30 passes through the first opening 21 and protrudes from the top surface 20a. In addition, the button surface 31 of the button 30 serves as a pressing surface for finger pressing, and protrudes from the top surface 20a by a pressing height H1, that is, the height difference between the button surface 31 of the button 30 and the top surface 20a of the housing 20 is the pressing height H1. The first assembly orientation is selected according to the pressing height H1 to install the fingerprint identifier 110 on the housing 20. After the fingerprint identifier 110 is fixed in the first assembly orientation, a part of the fingerprint identifier 110 is adapted to pass through the second opening 22 from the side where the bottom surface 20b is located and protrude from the top surface 20a.

[0046] As Figure 2A , Figure 2C and Figure 2D shown, or, as Figure 2B , Figure 2C and Figure 2D shown, in this embodiment, a positioning recess 23 and a positioning protrusion 24 connected to the positioning recess 23 are provided around the second opening 22 on the bottom surface 20b of the housing 20 or on the side where the bottom surface 20b is located. The positioning recess 23 and the positioning protrusion 24 are positioning structures surrounding the second opening 22, which can not only prevent the fingerprint identifier 110 from detaching from the first opening 21 on the top surface 20a, but also adjust the protruding height of the fingerprint identifier 110 relative to the top surface 20a.

[0047] The fingerprint identifier 110 includes a fingerprint identification body 111 and an alignment structure 112 surrounding the fingerprint identification body 111. The fingerprint identification body 111 passes through the second opening 22 and protrudes from the top surface 20a. On the other hand, the fingerprint identification body 111 includes a top portion 111a and a bottom portion 111b relative to the top portion 111a. The top portion 111a has a contact surface 111c for finger pulp contact, and the alignment structure 112 is connected to the bottom portion 111b or formed around the bottom portion 111b. When the fingerprint identification body 111 passes through the second opening 22 from the side where the bottom surface 20b is located, the positioning structures (including the positioning recess 23 and the positioning protrusion 24) distributed around the second opening 22 fall on the moving path of the alignment structure 112 and contact the alignment structure 112 to generate structural interference, thereby fixing the protruding height of the fingerprint identification body 111 relative to the top surface 20a.

[0048] As Figure 2A and Figure 2B shown, the fingerprint identification body 111 protrudes from the top surface 20a by a first height S1 equal to the pressing height H1. That is to say, the height difference between the contact surface 111c of the fingerprint identification body 111 and the top surface 20a of the housing 20 is the first height S1.

[0049] As Figure 2A , Figure 2C and Figure 2DAs shown, or, as Figure 2B , Figure 2C and Figure 2D shown, in this embodiment, the alignment structure 112 includes an alignment recess 112a and an alignment protrusion 112b connected to the alignment recess 112a, and the geometric profiles of the positioning recess 23 and the positioning protrusion 24 are respectively complementary to the geometric profiles of the alignment protrusion 112b and the alignment recess 112a. In the first assembly orientation, when the alignment structure 112 contacts the positioning structure distributed around the second opening 22, the alignment protrusion 112b contacts the positioning recess 23 and is received within the positioning recess 23. Additionally, the alignment recess 112a contacts the positioning protrusion 24, and the positioning protrusion 24 is received within the alignment recess 112a.

[0050] As Figure 2C and Figure 2D shown, the positioning recess 23 includes a plurality of concave surfaces 23a, and the positioning protrusion 24 includes a plurality of convex surfaces 24a. The plurality of concave surfaces 23a and the plurality of convex surfaces 24a are alternately arranged. For example, at least one convex surface 24a separates two adjacent concave surfaces 23a, or at least one concave surface 23a separates two adjacent convex surfaces 24a. Correspondingly, the alignment recess 112a includes a plurality of concave surfaces 112c, and the alignment protrusion 112b includes a plurality of convex surfaces 112d. The plurality of concave surfaces 112c and the plurality of convex surfaces 112d are alternately arranged. For example, at least one convex surface 112d separates two adjacent concave surfaces 112c, or at least one concave surface 112c separates two adjacent convex surfaces 112d.

[0051] As Figure 2A , Figure 2C and Figure 2D shown, or, as Figure 2B , Figure 2C and Figure 2D shown, in the first assembly orientation, when the alignment structure 112 contacts the positioning structure distributed around the second opening 22, the plurality of convex surfaces 24a contact the plurality of concave surfaces 112c, and the plurality of convex surfaces 112d contact the plurality of concave surfaces 23a.

[0052] Figure 3A And Figure 3B is a partial cross-sectional schematic view of an electronic device according to another embodiment of the present invention. Figure 3C is a partial enlarged exploded schematic view of an electronic device according to another embodiment of the present invention. Figure 3D is Figure 3C a partial enlarged exploded schematic view from another perspective. Figure 3C And Figure 3D shows a partial enlarged exploded schematic view of the area where the fingerprint recognition module 100 is located.

[0053] As Figure 3A , Figure 3C andFigure 3D As shown, or, as Figure 3B , Figure 3C and Figure 3D shown, the housing 20 and the fingerprint identifier 110 of the electronic device 10A in this embodiment and the electronic device 10 in the previous embodiment adopt a universal design. By adjusting the assembly orientation of the fingerprint identifier 110 on the housing 20, the fingerprint identifier 110 can protrude from the housing 20 at at least two different heights respectively to provide different operating heights, or to conform to the keyboard designs of electronic devices of at least two different models.

[0054] Compared with the electronic device 10 in the previous embodiment, the key surface 31a of the key 30a of the electronic device 10A protrudes from the top surface 20a by a pressing height H2 that is lower than the pressing height H1 (see Figure 2A and Figure 2B ). That is, the height difference between the key surface 31a of the key 30a and the top surface 20a of the housing 20 is the pressing height H2. Select the second assembly orientation according to the pressing height H2 to install the fingerprint identifier 110 on the housing 20.

[0055] As Figure 2C and Figure 3C shown, or, as Figure 2D and Figure 3D shown, by rotating the fingerprint identifier 110 in the first assembly orientation by 180 degrees, the fingerprint identifier 110 can be converted to the second assembly orientation. As Figure 3A , Figure 3C and Figure 3D shown, or, as Figure 3B , Figure 3C and Figure 3D shown, after fixing the fingerprint identifier 110 in the second assembly orientation, the fingerprint identification body 111 is adapted to pass through the second opening 22 from the side where the bottom surface 20b is located and protrude from the top surface 20a. When the fingerprint identification body 111 passes through the second opening 22 from the side where the bottom surface 20b is located, the positioning structures (including the positioning recess 23 and the positioning protrusion 24) distributed around the second opening 22 fall on the moving path of the alignment structure 112 and contact the alignment structure 112 to generate structural interference, thereby fixing the protruding height of the fingerprint identification body 111 relative to the top surface 20a.

[0056] As Figure 3A and Figure 3B shown, the fingerprint identification body 111 protrudes from the top surface 20a by a second height S2 that is equal to the pressing height H2. That is to say, the height difference between the contact surface 111c of the fingerprint identification body 111 and the top surface 20a of the housing 20 is the second height S2, and the second height S2 is lower than the first height S1 (see Figure 2A and Figure 2B ).

[0057] Furthermore, the fingerprint identifier 110 is adapted to cooperate with at least two kinds of keys having different pressing strokes. By adjusting the assembly orientation of the fingerprint identifier 110 on the housing 20, the contact surface 111c of the fingerprint identification body 111 can be set to be flush with the key surface of one of the keys. Therefore, in terms of manufacturing and assembly, the fingerprint identification module 100 and the electronic device 10 including this fingerprint identification module 100 improve problems such as lack of versatility and high cost.

[0058] As Figure 3A , Figure 3C and Figure 3D shown, or, as Figure 3B , Figure 3C and Figure 3D shown, in the second assembly orientation, when the alignment structure 112 contacts the positioning structures distributed around the second opening 22, the alignment convex portion 112b contacts the positioning convex portion 24, and the plurality of convex surfaces 112d contact the plurality of convex surfaces 24a.

[0059] As Figure 2A and Figure 2B shown, in the assembly setting where the alignment convex portion 112b contacts the positioning concave portion 23 and the alignment concave portion 112a contacts the positioning convex portion 24, the fingerprint identifier 110 has a relatively high mounting height on the housing 20, so that the fingerprint identification body 111 protrudes from the top surface 20a by a first height S1. Conversely, as Figure 3A and Figure 3B shown, in the assembly setting where the alignment convex portion 112b contacts the positioning convex portion 24, the fingerprint identifier 110 has a relatively low mounting height on the housing 20, so that the fingerprint identification body 111 protrudes from the top surface 20a by a second height S2.

[0060] In summary, the housing and the fingerprint identifier adopt a universal design. By adjusting the assembly orientation of the fingerprint identifier on the housing, the fingerprint identifier can protrude from the housing at at least two different heights respectively to provide different operating heights. In addition, the fingerprint identifier is adapted to cooperate with at least two kinds of keys having different pressing strokes. By adjusting the assembly orientation of the fingerprint identifier on the housing, the contact surface of the fingerprint identification body can be set to be flush with the key surface of one of the keys. Therefore, in terms of manufacturing and assembly, the fingerprint identification module of the present invention and the electronic device including this fingerprint identification module improve problems such as lack of versatility and high cost.

[0061] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person skilled in the art within the technical field, without departing from the spirit and scope of the present invention, may make some modifications and refinements. Therefore, the protection scope of the present invention shall be determined by the scope defined by the claims.

Claims

1. A fingerprint recognition module, comprising: A housing having a top surface, a bottom surface opposite to the top surface, and an opening penetrating the top surface and the bottom surface, wherein the bottom surface is provided with a positioning concave portion and a positioning convex portion connected to the positioning concave portion around the opening; and A fingerprint identifier is installed on the housing and includes a fingerprint identification body and an alignment structure surrounding the fingerprint identification body, the fingerprint identification body passes through the opening and protrudes from the top surface, and the alignment structure includes an alignment concave portion and an alignment convex portion connected to the alignment concave portion. In the first assembly orientation, the alignment protrusion contacts the positioning concave portion, and the alignment concave portion contacts the positioning protrusion, so that the fingerprint recognition body protrudes a first height relative to the top surface. In the second assembly orientation, the alignment protrusion contacts the positioning protrusion, so that the fingerprint identification body protrudes relative to the top surface to a second height lower than the first height.

2. The fingerprint recognition module according to claim 1, wherein: The fingerprint recognition body includes a top and a bottom relative to the top, and the alignment structure is connected to the bottom. In the first assembly orientation, the contact surface of the top portion has the first height with respect to the top surface, In the second assembly orientation, the second height is between the contact surface of the top and the top surface.

3. The fingerprint recognition module according to claim 1, wherein: The positioning concave portion includes a plurality of concave surfaces, and the positioning convex portion includes a plurality of convex surfaces, and the concave surfaces and the convex surfaces are arranged alternately.

4. The fingerprint recognition module according to claim 1, wherein: The alignment concave portion includes a plurality of concave surfaces, and the alignment convex portion includes a plurality of convex surfaces, and the concave surfaces and the convex surfaces are arranged alternately.

5. The fingerprint recognition module according to claim 1, wherein: The geometrical profiles of the positioning concave portion and the positioning convex portion are complementary to the geometrical profiles of the alignment convex portion and the positioning concave portion respectively. In the first assembly orientation, the alignment convex portion is accommodated in the positioning concave portion, and the positioning convex portion is accommodated in the alignment concave portion.

6. The fingerprint recognition module as claimed in claim 1, characterized in that: The fingerprint identifier is rotated 180 degrees between the first assembly position and the second assembly position.

7. An electronic device comprising: The housing comprises a top surface, a bottom surface opposite to the top surface, a first opening penetrating the top surface and the bottom surface, and a second opening penetrating the top surface and the bottom surface, wherein the bottom surface is provided with a positioning concave portion and a positioning convex portion connected to the positioning concave portion around the second opening; A key, passing through the first opening and protruding from the top surface, wherein the key surface of the key protrudes by a pressing height relative to the top surface; as well as A fingerprint identifier is selected from a first assembly orientation and a second assembly orientation according to the pressing height to install the fingerprint identifier on the housing, wherein the fingerprint identifier includes a fingerprint identification body and an alignment structure surrounding the fingerprint identification body, the fingerprint identification body passes through the second opening and protrudes from the top surface, and the alignment structure includes an alignment concave portion and an alignment convex portion connected to the alignment concave portion. In the first assembly orientation, the alignment protrusion contacts the positioning concave portion, and the alignment concave portion contacts the positioning protrusion, so that the fingerprint recognition body protrudes a first height relative to the top surface. In the second assembly orientation, the alignment protrusion contacts the positioning protrusion, so that the fingerprint identification body protrudes relative to the top surface to a second height lower than the first height.

8. The electronic device as claimed in claim 7, characterized in that: The fingerprint recognition body includes a top and a bottom relative to the top, and the alignment structure is connected to the bottom. In the first assembly orientation, the contact surface of the top portion has the first height with respect to the top surface, In the second assembly orientation, the second height is between the contact surface of the top and the top surface.

9. The electronic device as claimed in claim 7, characterized in that: The positioning concave portion includes a plurality of concave surfaces, and the positioning convex portion includes a plurality of convex surfaces, and the concave surfaces and the convex surfaces are arranged alternately.

10. The electronic device as claimed in claim 7, wherein: The alignment concave portion includes a plurality of concave surfaces, and the alignment convex portion includes a plurality of convex surfaces, and the concave surfaces and the convex surfaces are arranged alternately.

11. The electronic device according to claim 7, wherein: The geometrical profiles of the positioning concave portion and the positioning convex portion are complementary to the geometrical profiles of the alignment convex portion and the positioning concave portion respectively. In the first assembly orientation, the alignment convex portion is accommodated in the positioning concave portion, and the positioning convex portion is accommodated in the alignment concave portion.

12. The electronic device according to claim 7, wherein: The fingerprint identifier is rotated 180 degrees between the first assembly position and the second assembly position.