CN209297307U - Fingerprint key and electronic equipment - Google Patents
Fingerprint key and electronic equipment Download PDFInfo
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- CN209297307U CN209297307U CN201821784522.5U CN201821784522U CN209297307U CN 209297307 U CN209297307 U CN 209297307U CN 201821784522 U CN201821784522 U CN 201821784522U CN 209297307 U CN209297307 U CN 209297307U
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- key
- pedestal
- fingerprint
- conductive contact
- circuit board
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Abstract
The utility model relates to a kind of fingerprint key and electronic equipment, which includes: circuit board, fingerprint recognition mould group, pedestal, elastic component and key；Wherein, fingerprint recognition mould group is mounted on the first surface of circuit board, and pedestal is attached at the second surface of circuit board by adhesive means, and key is mounted on the base, and pedestal is equipped with the first conductive contact, and key is equipped with the second conductive contact；The elastic component setting on the base, is used to support key, the first conductive contact and the second conductive contact is separated；When fingerprint recognition mould group is by power by fingerprint recognition mould group to pedestal direction, it will drive pedestal compression elastic piece, the first conductive contact made to connect with the second conductive contact.Pedestal, elastic component and key belong to the chief component of switch, base plate glue stick at circuit board be equivalent to switch by glue be bonded on circuit boards, so that the simple production process of fingerprint key, and avoid the problems such as SMT welds the line short of caused circuit board.
Description
Technical field
The utility model relates to fingerprint identification technology fields, more particularly to a kind of fingerprint key and electronic equipment.
Background technique
With being constantly progressive for science and technology, the electronic equipments such as tablet computer, mobile phone, laptop are more more and more universal,
For the ease of identifying to user identity, fingerprint identification function is typically provided on electronic equipment.
Because easy to operate and degree of safety is high, fingerprint identification function is greatly favored by consumers.In order to further increase electronic equipment
Mechanical key on fingerprint identification module and electronic equipment is combined and is increasingly becoming new research side by the convenience used
To.For example, researchers would generally be set together fingerprint identification module and power switch to form finger in smart phone field
Line key allows people to carry out fingerprint recognition while pressing power key, to keep the operation of mobile phone more convenient.
Current fingerprint key generally includes fingerprint chip, key and circuit board, and fingerprint chip and key are set up respectively
Set in the two sides of circuit board, wherein key be usually pass through SMT (SMT be Surface Mount Technology abbreviation,
Chinese name is surface mounting technology) it welds on circuit boards, complex process and the bad line that may cause on circuit board of leg
Scrapping for entire fingerprint key is caused on short out road.
Utility model content
The utility model provides a kind of fingerprint key and electronic equipment, it is intended to solve key and circuit in existing fingerprint key
The problem of plate is set together by welding, line short in caused complex process and circuit board.
A kind of fingerprint key characterized by comprising circuit board, fingerprint recognition mould group, pedestal, elastic component and key；
Wherein, the fingerprint recognition mould group is mounted on the first surface of the circuit board, and the pedestal is attached at by adhesive means
On the second surface of the circuit board, the first surface of the circuit board and the second surface of the circuit board are disposed opposite to each other；Institute
State key setting on the base, and the pedestal is equipped with the first conductive contact, the key is equipped with the second conductive touching
Point, first conductive contact are opposite with second conductive contact；The elastic component setting on the base, is used to support
The key separates first conductive contact and second conductive contact；When the fingerprint recognition mould group by by
The fingerprint recognition mould group to the pedestal direction power when, will drive the pedestal and compress the elastic component, make described first
Conductive contact is electrically connected with second conductive contact.
In fingerprint key provided by the utility model, pedestal, elastic component and key belong to the main composition portion of switch
Point, pedestal, which is arranged to be equivalent to switch on circuit boards by adhesive means, to be fixed by adhesive means on circuit boards, so that referring to
The simple production process of line key, and avoid the problems such as SMT welds the line short on be may cause circuit board.This
Outside, it is arranged on circuit boards due to pedestal by adhesive means, so it is not necessary that the weldering for welding pedestal is arranged on circuit boards
Disk reduces the limitation to circuit connection design space, and reduces production cost.
Further, the first side of the pedestal connects with the circuit board, second side of the pedestal and the elasticity
Part connects, and the key is arranged on the elastic component；Wherein, second side phase of the first side of the pedestal and the pedestal
Back.Elastic component can not only play the effect that support key separates the first conductive contact with the second conductive contact in this way, moreover it is possible to rise
To the effect fixed to key installation, make that the structure of entire fingerprint key is simpler, production assembly is more convenient.
Further, at least one of the elastic component and the pedestal are equipped with concave inward structure, to cooperate in the two
After form a cavity, wherein first conductive contact and second conductive contact are respectively positioned in the cavity.It in this way can be with
It avoids extraneous conductive materials from having an impact the conducting of the first conductive contact and the second conductive contact, improves the safety of fingerprint key
Performance.
Further, the pedestal and the elastic component are by being integrally formed.It not only can make pedestal and bullet
Property part assembling it is more convenient, but also can use the high-precision of of injection mold itself to improve the assembling of pedestal and elastic component
Precision.
Further, the key and the elastic component are by being integrally formed.It not only can make key and bullet
Property part assembling it is more convenient, but also can use the high-precision of of injection mold itself to improve the assembling of key and elastic component
Precision.
Further, first conductive contact and second conductive contact are graphite linings, to reduce fingerprint key
Cost.
Further, the elastic component far from the pedestal one end be equipped with bulge-structure, the bulge-structure with it is described
Key is corresponding, so that the pressing of the fingerprint key is more laborsaving, improves the sensitivity of fingerprint key.
Further, the circuit board is flexible circuit board, and fingerprint key is accounted for when being mounted in other equipment
According to smaller space, the applicability of fingerprint key is improved.
Further, the fingerprint recognition mould group includes fingerprint chip and protective layer；Wherein, the first of the fingerprint chip
Surface connects with the circuit board, and the second surface of the fingerprint chip connects with the protective layer, and the of the fingerprint chip
The second surface of one surface and the fingerprint chip is opposite.
Further, the number of the key is N number of, and N number of key by the fingerprint recognition mould group to described
It is not overlapped on the direction of pedestal, wherein N >=2.It can make fingerprint key that there are more control functions in this way, when fingerprint is pressed
When key is mounted on other equipment, more concentrating by key control for the equipment can be made.
The utility model additionally provides a kind of electronic equipment, and the electronic equipment includes fingerprint described in any one as above
Key.
Detailed description of the invention
Fig. 1 is the overall schematic of fingerprint key provided by the utility model；
Fig. 2 is the partial cutaway schematic of fingerprint key provided by the utility model.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
It should be noted that when element is referred to as the similar languages such as " be fixed on, be installed on, or being set to " another element
When, it can directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection or
Connect " another element, it can be directly to another element or may be simultaneously present centering elements.
As depicted in figs. 1 and 2, in embodiment provided by the utility model, which includes: circuit board 1, fingerprint
Identify mould group 2, pedestal 3, elastic component 4 and key 5.Wherein, circuit board 1 has the first surface and the second table being disposed opposite to each other
Face, fingerprint recognition mould group 2 are mounted on the first surface of circuit board 1, and pedestal 3 is arranged in the of circuit board 1 by adhesive means
On two surfaces (the first surface side of initialization circuit plate 1 is top, then the second surface side of circuit board 1 is lower section, at this point,
The lower section of fingerprint mould group 2 is arranged in pedestal 3).Key 5 is installed on the base 3, and pedestal 3 is equipped with the first conductive contact 31, key
5 are equipped with the second conductive contact 51, and the first conductive contact 31 is oppositely arranged with the second conductive contact 51；Elastic component 4 is arranged the bottom of at
On seat 3, it is used to support key 5, the first conductive contact 31 and the second conductive contact 51 are separated；When fingerprint recognition mould group 2 by
When to power by fingerprint recognition mould group 2 to 3 direction of pedestal, i.e., when fingerprint key is by pressure from top to bottom, it will drive pedestal 3
Compression elastic piece 4 is electrically connected the first conductive contact 31 with second conductive contact 51.
It should be understood that pedestal 3, elastic component 4 and key 5 belong to the chief component of switch, pedestal 3 passes through glue
Viscous mode, which is arranged to be equivalent to switch on the circuit card 1, is fixed by adhesive means on the circuit card 1, so that the production of fingerprint key
Simple process, and avoid the problems such as SMT welds the line short on be may cause circuit board 1.Further, since pedestal 3
On the circuit card 1 by adhesive means setting, so reducing it is not necessary that the pad for welding pedestal 3 is arranged on the circuit card 1
Limitation to circuit connection design space, and reduce production cost.
In the actual production process, the gluing between pedestal 3 and circuit board 1 can be first in the region that the two is used to contact
Then gluing again bonds together the two pressing, be bonded the latter two and form an adhesive layer；It is also possible to first put pedestal
In the corresponding position of circuit board 1, drop glue then is carried out to the two contact position on the outside, is pasted together the two.
In addition, in the actual production process, usually carrying out automation drop glue by make-up machine keeps pedestal 3 and circuit board 1 viscous
It connects, needs to grab pedestal 3 by manipulator in the process, and be transferred to corresponding position, in order to avoid pedestal 3 is mechanical
Hand deforms when grabbing, and pedestal 3 is made of hard material, to keep the contraposition between pedestal 3 and fingerprint mould group 2 more accurate.Its
In, in the present embodiment, in order to which material reduces cost, pedestal 3 is duroplasts material, and duroplasts can be phenoplasts, poly- ammonia
Ester plastics, epoxy plastics, unsaturated polyester plastic etc..It should be understood that in other embodiments provided by the utility model, bottom
Seat 3 can also be made of hard materials such as metals.Further, in order to reduce cost, in the present embodiment, elastic component 4 is adopted
It is made of flexible plastic, flexible plastic can be polyethylene, polypropylene, polystyrene, nylon etc..It should be understood that practical new at this
In the other embodiments that type provides, elastic component 4 is also possible to be made of soft materials such as rubber, silica gel.
As shown in Fig. 2, first side of pedestal 3 connects with circuit board 1, pedestal in embodiment provided by the utility model
3 second side connects with elastic component 4, wherein the first side of pedestal 3 and second side of pedestal 3 are disposed opposite to each other.That is, in this implementation
In example, elastic component 4 can not only play the effect that support key 5 separates the first conductive contact 31 with the second conductive contact 51, also
It can play and fixed effect is installed to key 5, make that the structure of entire fingerprint key is simpler, production assembly is more convenient.?
In the present embodiment, elastic component 4 can be an elastic shell, and elasticity can be equipped with the installation position of key 5 above, wherein in this implementation
In a kind of specific embodiment of example, installation position is a stepped hole, and key 5 is mounted in the stepped hole.Certainly, practical new at this
In the other embodiments that type provides, installation position can be the inside that elastic shell is arranged in, that is, key 5 is mounted on elastic component 4
Elastic component 4 is not exposed afterwards.
Further, as shown in Fig. 2, in the present embodiment, the second end of pedestal 3 is equipped with concave inward structure 32.Elastic component
4 are arranged in the second end of pedestal 3, form a cavity after the two assembling at concave inward structure 32, and the first conductive contact 31 and the
Two conductive contacts 51 are respectively positioned in the cavity of the cavity.It in this way can be to avoid extraneous conductive materials to the first conductive contact 31 and
The conducting of two conductive contacts 51 has an impact, and improves the security performance of fingerprint key.
It should be understood that being also possible to only elastic component 4 in other embodiments provided by the utility model and being equipped with
Concave inward structure, pedestal 3 closes concave inward structure at this time, forms a cavity；Phase is all either set simultaneously on elastic component 4 and pedestal 3
The concave inward structure answered, after assembling, the concave inward structure of elastic component 4 communicates to form a cavity with the concave inward structure of pedestal 3.
In embodiment provided by the utility model, pedestal 3 and elastic component 4 not only may be used in this way by being integrally formed
So that the assembling of pedestal 3 and elastic component 4 is more convenient, but also it can use the high-precision of of injection mold itself to improve pedestal
3 with the assembly precision of elastic component 4.Specifically, in the present embodiment, since pedestal 3 and elastic component 4 are all made of plastic material, therefore
The two can be integrally formed by way of double-material injection-molding.It should be understood that when pedestal 3 and elastic component 4 are not all plastic material
When, it can also be integrally formed by modes such as mold insert injection moldings.Certainly, in other embodiments provided by the utility model, pedestal 3
It can also be linked together by the way of gluing between elastic component 4.
In embodiment provided by the utility model, key 5 is arranged on elastic component 4, and passes through injection molding one therebetween
It is body formed, to facilitate the assembling of key 5 Yu elastic component 4, and key 5 and bullet are improved using the high-precision of of injection mold itself
The assembly precision of property part 4.Further, in the present embodiment, key 5 includes the keying body as 4 material of elastic component
52, and the second conductive contact 51 being arranged in keying body 52, wherein in order to reduce cost, in the present embodiment, first
Conductive contact 31 and the second conductive contact 51 are all made of graphite guide electric layer.It should be understood that it is provided by the utility model other
In embodiment, sheet metal etc. is can be directly used in the first conductive contact 31 and the second conductive contact 51.In addition, in the utility model
In the other embodiments of offer, key 5 can also use other set-up modes, for example, keying body 52 is just a sheet metal,
Sheet metal is integrally formed in such a way that mold insert is molded with elastic component 4.
Further, elastic component 4 has bulge-structure 41 far from one end of pedestal 3, and bulge-structure 41 and key 5 are opposite
It answers.It after fingerprint key is mounted on other objects, for example is mounted in mobile phone shell, fingerprint recognition mould group 2 is located at mobile phone shell at this time
Outside, bulge-structure 41 contradict the corresponding position in mobile phone shell, the setting of bulge-structure 41 so that elastic component 4 and mobile phone shell it
Between can be there are gap, it is certain which is that the movement (i.e. fingerprint recognition mould group is moved into mobile phone shell) of fingerprint key leaves
Space, when pressing fingerprint mould group 2, the elastic component part at bulge-structure 41 is easier compressive deformation, saves the pressing of user more
Power, and be conducive to the first conductive contact 31 and contacted with the second conductive contact 51, and then be conducive to be connected to corresponding on point at two
Circuit conducting, such as: key 5 is the switch key for controlling cellular phone power supplies, at this point, the first conductive contact 31 and the second conductive contact
51 are connected in corresponding power control circuit, due to the setting of bulge-structure 41, so that two contacts are easier to contact, from
And keep the reaction of power control circuit sensitiveer.
In addition, in the present embodiment, bulge-structure 41 is a part of elastic component 4.It should be understood that in the utility model
In the other embodiments of offer, bulge-structure 41 is also possible to a part of key 5, that is, at this time key 5 a part protrusion with
Except elastic component 4.
In embodiment provided by the utility model, circuit board 1 is flexible circuit board, since flexible circuit board can fold
Together, it can reduce space occupied by entire fingerprint key when fingerprint key is installed into other equipment, improve fingerprint
The applicability of key, for example, due to the volume for reducing fingerprint key, therefore fingerprint key can be set in the side of mobile phone, it will
Fingerprint recognition mould group is combined with power button.It should be understood that in order to improve the intensity of flexible circuit board, flexible circuit
Plate is used to install fingerprint module 2 and the region of pedestal 3 is equipped with stiffening plate 6.In addition, pedestal 3 can also play the effect of stiffening plate
Fruit, can be directly as the stiffening plate of flexible circuit board, certainly, in order to which flexible circuit board is more smooth, the first table of pedestal 3
Face is plane.In addition, when pedestal 3 be arranged it is suitable when (for example, projection of the fingerprint recognition mould group 2 on the first surface of pedestal 3
Without departing from the region where the first surface of pedestal 3), pedestal 3 can play a supporting role with to fingerprint recognition mould group 2, avoid referring to
The reliability of 2 unbalance stress of line mould group influence fingerprint recognition mould group.
As shown in Fig. 2, fingerprint recognition mould group 2 includes fingerprint chip 21 and protects in embodiment provided by the utility model
Sheath 22.Wherein, fingerprint chip 21 has the first surface and second surface being disposed opposite to each other, wherein the first table of fingerprint chip 21
Face connects with circuit board 1, and the second surface of fingerprint chip 22 connects with protective layer 22.Specifically, in the present embodiment, fingerprint core
The first surface of piece 21 is welded on the circuit card 1 by SMT, and protective layer 22 is arranged in the of fingerprint chip 21 by adhesive means
Two surfaces, wherein protective layer 22 can be glass cover-plate or film plating layer etc..Wherein, film plating layer can be monocrystalline or polycrystalline oxygen
Change aluminium coat, silicon dioxide layer plating etc..
In actual use, the equipment for having used the fingerprint key may further include other function key, such as
In mobile phone, in addition to power button further include there are two adjust volume key, in order to improve equipment key degree of integration, refer to
5 numbers of key on line key are more than or equal to 2, wherein these keys 5 are in the direction by fingerprint recognition mould group to pedestal
It does not overlap, is interfered with each other to avoid between key.Specifically, as shown in Figure 1, in embodiment provided by the utility model,
The number of key 5 is 3, these three keys 5 are successively arranged on elastic component.
The utility model additionally provides a kind of electronic equipment, which has used described in above-mentioned any one embodiment
Fingerprint key.Wherein, which can be the equipment such as smart phone, tablet computer, be pressed by using above-mentioned fingerprint
Key, the performance of these electronic equipments made is improved, cost is reduced.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of fingerprint key characterized by comprising
Circuit board, fingerprint recognition mould group, pedestal, elastic component and key；
Wherein, the circuit board is equipped with opposite first surface and second surface；The fingerprint recognition mould group and the circuit board
It is electrically connected to the first surface, the pedestal is attached on the second surface of the circuit board by adhesive means；
Side of the pedestal far from the circuit board is arranged in the key, and the pedestal is equipped with the first conductive contact,
The key is equipped with the second conductive contact, and first conductive contact is opposite with second conductive contact；
Elastic component setting on the base, is used to support the key, by first conductive contact and described the
Two conductive contacts separate；When the fingerprint recognition mould group is by power by the fingerprint recognition mould group to the pedestal direction,
It will drive the pedestal and compress the elastic component, be electrically connected first conductive contact with second conductive contact.
2. fingerprint key according to claim 1, which is characterized in that the first side of the pedestal and the circuit board phase
It connecing, second side of the pedestal connects with the elastic component, and the key is arranged on the elastic component, and the first of the pedestal
Side is opposite with second side of the pedestal；
At least one of the elastic component and the pedestal are equipped with concave inward structure, to form a cavity after the two cooperates,
First conductive contact and second conductive contact are respectively positioned in the cavity.
3. fingerprint key according to claim 2, which is characterized in that the pedestal and the elastic component pass through integrated through injection molding
Molding.
4. fingerprint key according to claim 2, which is characterized in that the key and the elastic component pass through integrated through injection molding
Molding.
5. fingerprint key according to claim 2, which is characterized in that first conductive contact and the second conductive touching
Point is graphite linings.
6. fingerprint key according to claim 2, which is characterized in that the elastic component is equipped with far from one end of the pedestal
Bulge-structure, the bulge-structure are corresponding with the key.
7. fingerprint key according to claim 1, which is characterized in that the circuit board is flexible circuit board.
8. fingerprint key according to claim 1, which is characterized in that the fingerprint recognition mould group includes fingerprint chip and guarantor
Sheath；
Wherein, the first surface of the fingerprint chip connects with the circuit board, the second surface of the fingerprint chip with it is described
Protective layer connects, and the second surface of the first surface of the fingerprint chip and the fingerprint chip is opposite.
9. fingerprint key according to claim 1, which is characterized in that the number of the key is N number of, and N number of described is pressed
Key does not overlap on by the fingerprint recognition mould group to the direction of the pedestal, wherein N >=2.
10. a kind of electronic equipment, which is characterized in that the electronic equipment includes finger as described in any one of claims 1-9
Line key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784522.5U CN209297307U (en) | 2018-10-31 | 2018-10-31 | Fingerprint key and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784522.5U CN209297307U (en) | 2018-10-31 | 2018-10-31 | Fingerprint key and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209297307U true CN209297307U (en) | 2019-08-23 |
Family
ID=67647487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821784522.5U Active CN209297307U (en) | 2018-10-31 | 2018-10-31 | Fingerprint key and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209297307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114052500A (en) * | 2021-11-17 | 2022-02-18 | 浙江九点健康科技有限公司 | Water purifier with customized heating function |
| WO2022042068A1 (en) * | 2020-08-31 | 2022-03-03 | Oppo广东移动通信有限公司 | Electronic device and wearable electronic device |
-
2018
- 2018-10-31 CN CN201821784522.5U patent/CN209297307U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042068A1 (en) * | 2020-08-31 | 2022-03-03 | Oppo广东移动通信有限公司 | Electronic device and wearable electronic device |
| CN114052500A (en) * | 2021-11-17 | 2022-02-18 | 浙江九点健康科技有限公司 | Water purifier with customized heating function |
| CN114052500B (en) * | 2021-11-17 | 2024-03-26 | 浙江九点健康科技有限公司 | Custom-heated water purifier |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: OFilm Microelectronics Technology Co.,Ltd. Address after: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330029 No. 1189 Jingdong Avenue, Nanchang high tech Zone, Jiangxi Patentee before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. |