CN215496700U - Side fingerprint device and terminal equipment - Google Patents
Side fingerprint device and terminal equipment Download PDFInfo
- Publication number
- CN215496700U CN215496700U CN202121234889.1U CN202121234889U CN215496700U CN 215496700 U CN215496700 U CN 215496700U CN 202121234889 U CN202121234889 U CN 202121234889U CN 215496700 U CN215496700 U CN 215496700U
- Authority
- CN
- China
- Prior art keywords
- fingerprint
- fingerprint chip
- chip
- casing
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003292 glue Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims description 17
- 239000002390 adhesive tape Substances 0.000 claims description 11
- 239000000565 sealant Substances 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Image Input (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a side fingerprint device and terminal equipment, relates to the technical field of fingerprint identification, and solves the technical problem that glue overflow is easily generated when a glue injection mode is adopted to plug a mounting gap. The device includes the fingerprint chip, has seted up the annular groove along the circumference of fingerprint chip, makes the edge formation pterygoid lamina of fingerprint chip, and the mounting hole has been seted up to the side of casing, and the fingerprint chip is located in the mounting hole through the spacing embedding of pterygoid lamina, is connected fixedly between the face of pterygoid lamina and casing. According to the utility model, the section of the fingerprint chip forms a step structure similar to a T shape through the annular groove formed in the fingerprint chip, when the fingerprint chip is assembled, the wing plate of the fingerprint chip is attached to the surface of the whole machine shell and is fixedly connected, so that the mounting hole on the shell can form a blind hole structure, and when glue is injected to the side fingerprint device subsequently, the problem of glue overflow can be avoided, and the attractiveness of the product is ensured. Meanwhile, micro-shaking of the fingerprint chip is avoided.
Description
Technical Field
The utility model relates to the technical field of fingerprint identification, in particular to a side fingerprint device and terminal equipment.
Background
Along with the rapid development of the mobile internet era, the integrated functionality of the mobile phone is more complete. The size of the screen has also developed to a critical point today, and the appearance of the full screen is increasing in pursuit of better visual effects. For a full-screen terminal device, it has become a mainstream trend to arrange a fingerprint identification device at a side of the terminal device.
Because the fingerprint identification device needs to set up the casing side at terminal equipment, has leaded to necessarily having the problem of installation clearance between fingerprint identification device and the casing to the requirement to side fingerprint waterproof performance is higher and higher. In the prior art, a glue injection manner is usually adopted to block a gap between the fingerprint identification device and the casing, so as to perform waterproof treatment on the side fingerprints. However, glue injection easily causes the problem of glue overflow in the installation gap, and the aesthetic property of the terminal equipment is greatly influenced. Therefore, how to design a side fingerprint device capable of effectively preventing water and avoiding glue overflow is a technical problem to be solved urgently by technical personnel in the technical field.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to overcome the defects in the prior art, and in a first aspect, a side fingerprint device is provided to solve the technical problem in the prior art that an adhesive overflow is easily generated when a glue injection manner is used to plug a mounting gap.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
a side fingerprint device is installed in the side of casing, includes:
the fingerprint chip is provided with an annular groove along the circumferential direction of the fingerprint chip, so that the edge of the fingerprint chip forms a wing plate;
the fingerprint chip is embedded in the mounting hole in a limiting mode through the wing plate, and the wing plate is fixedly connected with the board surface of the casing.
On the basis of the technical scheme, the side fingerprint device can be improved as follows.
Optionally, the wing plate and the surface of the casing are fixedly connected through a double-sided adhesive tape, and a sealing adhesive is filled in the annular groove of the fingerprint chip.
Optionally, the double-sided adhesive tape is a waterproof double-sided adhesive tape, and the sealant is a waterproof sealant.
Optionally, a protective layer covers the surface of the fingerprint chip outside the housing.
Optionally, the protective layer is made of glass or a coating.
Optionally, a circuit substrate is welded on the surface of the fingerprint chip inside the casing through solder paste, and the circuit substrate is electrically connected with the whole circuit board.
Optionally, a reinforcing steel sheet is adhered to the circuit substrate.
Optionally, the sealant extends to the circuit substrate.
Optionally, the fingerprint chip is a capacitive fingerprint chip.
In a second aspect, the present invention further provides a terminal device, including the side fingerprint apparatus.
Compared with the prior art, the side fingerprint device provided by the utility model has the beneficial effects that:
according to the utility model, the section of the fingerprint chip forms a step structure similar to a T shape through the annular groove formed in the fingerprint chip, when the fingerprint chip is assembled, the wing plate of the fingerprint chip is attached to the surface of the whole machine shell and is fixedly connected, so that the mounting hole on the shell can form a blind hole structure, and when glue is injected to the side fingerprint device subsequently, the problem of glue overflow can be avoided, and the attractiveness of the product is ensured. Meanwhile, micro-shaking of the fingerprint chip is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a side fingerprint device according to the present invention;
FIG. 2 is a schematic cross-sectional view of the fingerprint chip of FIG. 1;
fig. 3 is a schematic front view of the terminal device of the present invention.
In the figure:
1, a machine shell; 11-a display screen; 2-fingerprint chip; 21-an annular groove; 22-wing plate; 3, double-sided adhesive tape; 4, sealing glue; 5, a protective layer; 6-tin paste; 7-a circuit substrate; 8, reinforcing steel sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely a few embodiments of the utility model and are not to be taken as a comprehensive embodiment. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the utility model provides a side fingerprint device, which comprises a fingerprint chip 2, a protective layer 5, a circuit substrate 7 and a reinforced steel sheet 8, as shown in figures 1 and 2. As shown in fig. 2, the fingerprint chip 2 may be a capacitive fingerprint chip. The whole of the fingerprint chip 2 can be in a strip-shaped or waist-shaped structure, and an annular groove 21 is formed in the circumferential direction of the fingerprint chip 2, so that the fingerprint chip 2 is cut to form a step structure with a cross section similar to a T shape. The uncut portion of the edge of the fingerprint chip 2 forms a flap 22.
As shown in fig. 1, a mounting hole is formed in a side edge of a casing 1 of the terminal device overall unit, and the size of the mounting hole is slightly larger than the outer contour of the remaining part of the cut middle part of the fingerprint chip 2, so that the fingerprint chip 2 can be easily embedded into the mounting hole. At this time, the paddle 22 is bonded to the outer plate surface of the housing 1. Adopt double faced adhesive tape 3 to paste the pterygoid lamina 22 of fingerprint chip 2 on the outside face of casing 1, can effectively avoid rocking a little of fingerprint chip 2.
After the fingerprint chip 2 and the casing 1 are fixedly connected, the mounting hole on the casing 1 forms a blind hole facing the inside of the casing 1. Sealant 4 is filled into the blind holes through a glue injection process, so that gaps between the fingerprint chip 2 and the casing 1 can be completely filled, the filled sealant 4 cannot overflow out of the outer side plate surface of the casing 1, and the attractiveness of a product is guaranteed. Wherein, the double faced adhesive tape 3 adopts waterproof double faced adhesive tape, and sealed glue 4 adopts waterproof sealed glue, can make form twice waterproof layer between fingerprint chip 2 and the casing 1 to the waterproof performance of side fingerprint has effectively been improved.
As shown in fig. 1, the protective layer 5 is stuck on the surface side of the fingerprint chip 2 outside the housing 1 and completely covers the surface of the fingerprint chip 2. Wherein, protective layer 5 can select for use glass material or resin coating material, can play good guard action to fingerprint chip 2.
As shown in fig. 1, a circuit substrate 7 is soldered on the surface of the fingerprint chip 2 inside the housing 1 through solder paste 6, and the circuit substrate 7 is electrically connected to the circuit board of the terminal device. The circuit substrate 7 is adhered with a reinforcing steel sheet 8 for supporting the fingerprint chip 2 and the circuit substrate 7 so as to improve the rigidity of the fingerprint chip 2 and the circuit substrate 7. The sealant 4 extends to the position of the circuit substrate 7 to fully seal the gap between the fingerprint chip 2 and the case 1, and prevent liquid from penetrating into the gap between the fingerprint chip 2 and the circuit substrate 7.
Compared with the prior art, the fingerprint chip 2 is designed by the T-shaped step structure, so that the fingerprint chip 2 and the shell 1 are matched and sealed. The double faced adhesive tape 3 has played the effect of fixed fingerprint chip 2 on the one hand, and on the other hand has still played waterproof effect, becomes the first waterproof construction of side fingerprint. In addition, sealed glue 4 becomes the waterproof construction of second way of side fingerprint, because the shutoff effect of fingerprint chip 2 at casing 1 mounting hole, sealed glue 4 was excessive when having effectively avoided the injecting glue, has guaranteed the aesthetic property of product. Meanwhile, the side fingerprint device firmly adheres the fingerprint chip 2 to the surface of the machine shell 1, and micro-shaking of the fingerprint chip 2 is avoided.
Example 2:
the utility model also provides a terminal device, as shown in fig. 3, including the side fingerprint device in the above embodiment. Taking a mobile phone as an example, the display screen 11 is arranged inside the casing 1 of the whole mobile phone, the mounting hole is formed in the side edge of the casing 1, and the side edge fingerprint device is mounted in the mounting hole of the casing 1.
The terminal equipment can effectively prevent liquid from entering the shell 1 from the side fingerprint device to cause damage to the fingerprint chip 2 or electronic components in the shell 1. Meanwhile, glue injection between the fingerprint chip 2 and the casing 1 cannot overflow, and attractiveness of the terminal equipment is guaranteed.
It is understood that the terminal device in this embodiment is not limited to a mobile phone, and may also be a tablet, a notebook computer, or a mobile memory.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A side fingerprint device, characterized by, install in the side of casing (1), include:
the fingerprint chip (2) is provided with an annular groove (21) along the circumferential direction of the fingerprint chip (2), so that the edge of the fingerprint chip (2) forms a wing plate (22);
the fingerprint identification device is characterized in that a mounting hole is formed in the side edge of the casing (1), the fingerprint chip (2) is embedded in the mounting hole in a limiting mode through the wing plate (22), and the wing plate (22) is fixedly connected with the surface of the casing (1).
2. The side fingerprint device according to claim 1, wherein the wing plate (22) is fixedly connected with the surface of the casing (1) through a double-sided adhesive tape (3), and a sealing glue (4) is filled in the annular groove (21) of the fingerprint chip (2).
3. A side fingerprint device according to claim 2, wherein said double sided adhesive tape (3) is a waterproof double sided adhesive tape and said sealant (4) is a waterproof sealant.
4. A side fingerprint device according to claim 1, wherein the surface of the fingerprint chip (2) outside the housing (1) is covered with a protective layer (5).
5. A side fingerprint device according to claim 4, wherein the protective layer (5) is made of glass or a coating.
6. The side fingerprint device according to claim 2, wherein a circuit substrate (7) is soldered on the surface of the fingerprint chip (2) inside the casing (1) through solder paste (6), and the circuit substrate (7) is electrically connected with a circuit board of the whole device.
7. A side fingerprint device according to claim 6 wherein said circuit substrate (7) is glued with a steel reinforcing sheet (8).
8. A side fingerprint device according to claim 7, wherein the sealant (4) extends to the location of the circuit substrate (7).
9. A side fingerprint device according to any of claims 1 to 8, wherein the fingerprint chip (2) is a capacitive fingerprint chip.
10. A terminal device, characterized in that it comprises a side fingerprint arrangement according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121234889.1U CN215496700U (en) | 2021-06-03 | 2021-06-03 | Side fingerprint device and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121234889.1U CN215496700U (en) | 2021-06-03 | 2021-06-03 | Side fingerprint device and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215496700U true CN215496700U (en) | 2022-01-11 |
Family
ID=79782586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121234889.1U Expired - Fee Related CN215496700U (en) | 2021-06-03 | 2021-06-03 | Side fingerprint device and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215496700U (en) |
-
2021
- 2021-06-03 CN CN202121234889.1U patent/CN215496700U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |