CN208476967U - Fingerprint module sensitivity test auxiliary fixture - Google Patents
Fingerprint module sensitivity test auxiliary fixture Download PDFInfo
- Publication number
- CN208476967U CN208476967U CN201821106642.XU CN201821106642U CN208476967U CN 208476967 U CN208476967 U CN 208476967U CN 201821106642 U CN201821106642 U CN 201821106642U CN 208476967 U CN208476967 U CN 208476967U
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- fingerprint module
- plate
- probe
- sensitivity test
- bottom plate
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Abstract
In order to solve the technical problem that fingerprint module in the prior art easily causes measuring accuracy low with pressure head uplink, the utility model discloses a kind of fingerprint module sensitivity test auxiliary fixtures, including bottom plate, type at the top of bottom plate is intracavitary to be inlaid with fingerprint module positioning plate, and the top of positioning plate is equipped with the profiling locating slot of clamping fingerprint module main body；The bottom of fingerprint module positioning plate is provided with sealing ring, sealing ring is pressed in one airtight chamber of the intracavitary formation of type, negative pressure gas circuit is provided in bottom plate, negative pressure gas circuit is provided with the port that divides being connected to airtight chamber, and array there are several stomatas being connected to airtight chamber in fingerprint module positioning plate.The main body and FPC connector of fingerprint module are held in profiling locating slot in link slot in a manner of vacuum suction, can prevent fingerprint module from following pressure head uplink, guarantee that fingerprint module whole process stabilization is not shaken.
Description
Technical field
The utility model belongs to fingerprint identification module test equipment technical field.
Background technique
Fingerprint identification module is the identification realized by specific inductive module for individual fingerprints feature.In simple terms,
Each finger print mobile phones can possess a fingerprint identification module, by the fingerprint-collection of user and be converted to number by the module
According to, be stored in mobile phone storage specific region, be called when in use.Capacitance type fingerprint module be using silicon crystal unit with
Conductive subcutaneous electrolyte forms electric field, and the height fluctuating of fingerprint will lead to pressure difference between the two and different variations occur, borrows
This can realize accurate fingerprint measurement.Capacitance type fingerprint module is also classified into scratching formula and two kinds of push type, although the former occupies body
Product is smaller, but has very big disadvantage in terms of discrimination and convenience, this also directly results in manufacturer and is all locked in sight
Operation more arbitrarily, discrimination higher push type capacitive fingerprint module.
The sensitivity of push type capacitive fingerprint module is the important parameter for measuring its performance, and existing sensitivity test is to adopt
It is tested with the automatic test equipment with pressure head, the moving distance machine pressing dynamics of pressure head can be smart by way of programming
Really control, high degree of automation, test result are accurate.Before sensitivity test, fingerprint module need to be put into auxiliary fixture
It is positioned, the groove of the shape adapted to is equipped in auxiliary fixture, the position of fingerprint module is limited using groove, pressure head is once pressed
Uplink rotation displacement is needed after pressure, and fingerprint module is taken up a distance by guild upwards on pressure head, is fallen into groove again
Fingerprint module edge can collide with jig, cause fingerprint mould group scratch even deform, moreover, the shaking meeting of fingerprint module
Lead to sensitivity test inaccuracy next time.
Utility model content
The purpose of the utility model is to provide a kind of test fixtures that can prevent fingerprint module from following pressure head uplink.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
Fingerprint module sensitivity test auxiliary fixture, including bottom plate, type at the top of the bottom plate is intracavitary to be inlaid with fingerprint mould
Block positioning plate, the top of positioning plate are equipped with the profiling locating slot of clamping fingerprint module main body, are inlaid in the bottom plate and fingerprint
The probe module of module FPC connector conducting, the bottom plate top are provided with the connection fingerprint module positioning plate and the spy
The FPC soft board of the link slot of pin module, fingerprint module is placed in the link slot；The bottom of the fingerprint module positioning plate is arranged
There is sealing ring, the sealing ring is pressed in one airtight chamber of the intracavitary formation of type, and negative pressure gas circuit is provided in the bottom plate, described negative
Pressure gas channel is provided with the port that divides being connected to the airtight chamber, in the fingerprint module positioning plate array have it is several with it is described close
Close the stomata of chamber；The negative pressure gas circuit extends to the lower section of the link slot, is equipped in the link slot and bears with described
Pressure gas channel connection divides port.
The clamping process of above-mentioned jig are as follows:
1, the main body of fingerprint module is placed in profiling locating slot, FPC soft board is placed in link slot, and FPC connector is set
In in probe module；
2, vaccum-pumping equipment starts, and main body is adsorbed in profiling locating slot, FPC soft board is adsorbed in link slot.
Further, the fingerprint module positioning plate is made of epoxy resin board, epoxy resin board can not only insulate,
And panelling can be replaced according to double models for taking the photograph mould group to be measured, improve the versatility of jig.The side of positioning plate is set
It is equipped with the pick-and-place mouth for picking and placing fingerprint module；The bottom plate corresponds to the finger recessing groove that flared type is provided at the pick-and-place mouth.
Further, the side of the bottom plate has been connected by hinge a block pressur plate, other side setting fastens pressing plate
Rotation hooked scarf on bottom plate；After vaccum-pumping equipment starting, the pressing plate is rotated down closure, the needle stand of the evagination of bottom
Briquetting is pressed in the probe module.
Further, the bottom of the pressing plate is provided with insert, the needle stand briquetting is located in the insert.
Further, the probe module is mainly made of PCB placement plate, probe, needle stand and fixed plate；The PCB
Placement plate is located at the top of the needle stand, and the fixed plate is fixed on the bottom of the needle stand and is locked in using screw at the bottom
The bottom end of plate；The top of the PCB placement plate has the type chamber for placing pcb board, and bottom is connect using spring with the needle stand；Institute
It states probe to be mounted in the needle stand, in the type chamber of the top insertion placement plate of probe, bottom is inserted into the fixed plate.
Spring jacks up PCB placement plate upwards, is recessed in that type is intracavitary at the top of probe, and the connector of pcb board does not connect with probe
Touching.Needle stand briquetting pushes pcb board, and spring contraction, the decline of PCB placement plate, probe tip is opposite to be protruded, the connector of pcb board with
Conducting is realized in probe contact.
Further, being equipped with the positioning support plate of positioning clamping test fixture, the positioning on the table top of tester table
The socket fixing seat of installation socket is embedded in support plate.When test different model double take the photograph mould group, the edge of corresponding model is needed to change
Plate, insert and probe module, if the probe location of probe module changes, the socket position in tester table is also answered
Corresponding adjustment is made, and the adjustment of socket position by the way of changing socket fixing seat using with can be completed.
Further, the bottom of the fixed plate has the guide pad of back taper, set at the top of the socket fixing seat
Be equipped with the matched guide groove of the guide pad, test fixture position support plate on clamping position when, guide pad be inserted into guide groove
Interior pre- directing prevents probe deformations to guarantee that probe is smoothly inserted into socket.
Compared with prior art, the utility model has the beneficial effects that the main body and FPC connector of 1. fingerprint modules are with true
The attached mode of suction is held in profiling locating slot and in link slot, can prevent fingerprint module from following pressure head uplink, is guaranteed
Fingerprint module whole process stabilization is not shaken；2. test fixture will not integrally shift also not in tester table positioning clamping and after being connected
It is disconnected with the plug of board, and the elastic floating mounting structure of PCB placement plate can guarantee double mould groups of taking the photograph before jig closure
No power；3. all components relevant to test are all made of the mounting structure of mold insert form, on the basis for not increasing jig cost
On, it reuse the 80% of jig effective value can, significantly reduce the production cost of jig.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.
Fig. 1 is the structural schematic diagram of fingerprint mould group disclosed in embodiment one；
Fig. 2 is the opening state structural schematic diagram of test fixture disclosed in embodiment one；
Fig. 3 is the opening state structural schematic diagram (having product) of test fixture disclosed in embodiment one；
Fig. 4 is the configuration schematic diagram of probe module disclosed in embodiment two；
Fig. 5 is the mounting structure schematic diagram of test fixture disclosed in embodiment three and positioning support plate；
Fig. 6 is the enlarged diagram in Fig. 5 at A.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
It is a kind of capacitor line identification module shown in Fig. 1, is mainly connected by main body 1, protective layer 2, FPC soft board 3, FPC
Fitting 4, becket etc. form, wherein main body i.e. Sensor section, trigger device of the becket as fingerprint recognition.
Embodiment one
It is the auxiliary fixture for testing of fingerprint module sensitivity in test chart 1 shown in Fig. 1 and 2, the side of bottom plate 5 passes through
Hinge connection has a block pressur plate 6, and the rotation hooked scarf 7 being fastened on pressing plate on bottom plate is arranged in the other side.Type at the top of bottom plate is intracavitary
It is inlaid with fingerprint module positioning plate 5a, the top of positioning plate is equipped with the profiling locating slot 5b of clamping fingerprint module main body, in bottom plate
It is inlaid with the probe module 8 be connected with fingerprint module FPC connector, connection fingerprint module positioning plate is provided at the top of bottom plate and is visited
The FPC soft board of the link slot 5c of pin module, fingerprint module are placed in link slot.The side of positioning plate is provided with pick-and-place fingerprint module
Pick-and-place mouth 5d；Bottom plate is corresponding to pick and place the finger recessing groove 5e that flared type is provided at mouth.The bottom of pressing plate is provided with insert 6a,
The needle stand briquetting 6b of evagination is located in insert.The bottom of fingerprint module positioning plate is provided with sealing ring (being not drawn into figure), sealing
Circle is pressed in one airtight chamber of the intracavitary formation of type, and negative pressure gas circuit 9 is provided in bottom plate, and negative pressure gas circuit is provided with to be connected with airtight chamber
Logical divides port, and array has several stomatas 10 being connected to airtight chamber in fingerprint module positioning plate；Negative pressure gas circuit extends to company
The lower section of access slot, link slot is interior to divide port 11 equipped with what is be connected to negative pressure gas circuit.
The clamping process of above-mentioned jig are as follows:
3, the main body of fingerprint module is placed in profiling locating slot, FPC soft board is placed in link slot, and FPC connector is set
In in probe module；
4, vaccum-pumping equipment starts, and main body is adsorbed in profiling locating slot, FPC soft board is adsorbed in link slot；
5, pressing plate is rotated down closure, and FPC connector is tightly pressed against in probe module and realizes conducting by needle stand briquetting.
Fingerprint module positioning plate is made of epoxy resin board, and epoxy resin board can not only insulate, but also panelling can root
It is replaced according to double models for taking the photograph mould group to be measured, improves the versatility of jig.
Embodiment two
Referring to fig. 4, probe module described in embodiment one is mainly by PCB placement plate 8a, probe 8b, needle stand 8c and fixation
Plate 8d is constituted；PCB placement plate is located at the top of needle stand, and fixed plate is fixed on the bottom of needle stand and is locked in using screw in bottom plate
Bottom end；The top of PCB placement plate has the type chamber 8e for placing pcb board, and bottom is connect using spring 8f with needle stand；Probe is mounted on
In needle stand, in the type chamber of the top insertion placement plate of probe, bottom is inserted into fixed plate.
Spring jacks up PCB placement plate upwards, is recessed in that type is intracavitary at the top of probe, and the connector of pcb board does not connect with probe
Touching.Needle stand briquetting pushes pcb board, and spring contraction, the decline of PCB placement plate, probe tip is opposite to be protruded, the connector of pcb board with
Conducting is realized in probe contact.
Embodiment three
It will be installed the positioning support plate 11 of positioning clamping test fixture on the table top of tester table.Test the double of different model
When taking the photograph mould group, panelling, insert and the probe module of corresponding model are needed to change, if the probe location of probe module changes,
Socket position so in tester table should also make corresponding adjustment, below with reference to attached Figures 5 and 6, introduce socket position tune
Whole mode.
It is embedded with the socket fixing seat 12 of installation socket B in positioning support plate, there is the chamber of installation socket in socket positioning seat
Room.Socket in tester table is certain fixing model, so double socket fixing seats for taking the photograph mould group of corresponding different model, only need basis
The position of probe mould group middle probe digs chamber.
Two sides at the top of socket fixing seat have outwardly extending boss (being not drawn into figure), with pin insertion boss and determine
The positioning and fixation of socket fixing seat are realized in the support plate of position.
The bottom of fixed plate has the guide pad 14 of back taper, is provided at the top of socket fixing seat matched with guide pad
Guide groove, for test fixture in clamping position on positioning support plate, guide pad is inserted into pre- directing in guide groove, to guarantee that probe is smooth
It is inserted into socket, prevents probe deformations.
Various modifications to these embodiments will be readily apparent to those skilled in the art, herein
Defined General Principle can be real in other embodiments without departing from the spirit or scope of the present utility model
It is existing.Therefore, the present invention will not be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent widest scope of features of novelty.
Claims (8)
1. fingerprint module sensitivity test auxiliary fixture, which is characterized in that including bottom plate, type at the top of the bottom plate is intracavitary to be inlayed
There is fingerprint module positioning plate, the top of positioning plate is equipped with the profiling locating slot of clamping fingerprint module main body, inlays in the bottom plate
There is the probe module be connected with fingerprint module FPC connector, the connection fingerprint module positioning plate is provided at the top of the bottom plate
It is placed in the link slot with the FPC soft board of the link slot of the probe module, fingerprint module；The fingerprint module positioning plate
Bottom is provided with sealing ring, and the sealing ring is pressed in one airtight chamber of the intracavitary formation of type, is provided with negative pressure gas in the bottom plate
Road, the negative pressure gas circuit are provided with the port that divides being connected to the airtight chamber, and array has number in the fingerprint module positioning plate
A stomata being connected to the airtight chamber.
2. fingerprint module sensitivity test auxiliary fixture according to claim 1, which is characterized in that the negative pressure gas circuit is prolonged
The lower section of the link slot is reached, is equipped in the link slot and divides port with what the negative pressure gas circuit was connected to.
3. fingerprint module sensitivity test auxiliary fixture according to claim 2, which is characterized in that the fingerprint module is fixed
Position plate is made of epoxy resin board, and one side is provided with the pick-and-place mouth for picking and placing fingerprint module；The bottom plate corresponds to the pick-and-place mouth
Place is provided with the finger recessing groove of flared type.
4. fingerprint module sensitivity test auxiliary fixture according to claim 3, which is characterized in that the side of the bottom plate
It has been connected by hinge a block pressur plate, and rotation hooked scarf pressing plate being fastened on bottom plate is arranged in the other side；The pressing plate is to backspin
After turning closure, the needle stand briquetting of the evagination of bottom is pressed in the probe module.
5. fingerprint module sensitivity test auxiliary fixture according to claim 4, which is characterized in that the bottom of the pressing plate
It is provided with insert, the needle stand briquetting is located in the insert.
6. fingerprint module sensitivity test auxiliary fixture according to claim 5, which is characterized in that the probe module master
It to be made of PCB placement plate, probe, needle stand and fixed plate；The PCB placement plate is located at the top of the needle stand, the fixation
Plate is fixed on the bottom of the needle stand and is locked in using screw in the bottom end of the bottom plate；The top of the PCB placement plate has
The type chamber of pcb board is placed, bottom is connect using spring with the needle stand；The probe is mounted in the needle stand, the top of probe
Portion is inserted into the type chamber of placement plate, and bottom is inserted into the fixed plate.
7. fingerprint module sensitivity test auxiliary fixture according to claim 6, which is characterized in that the table top of tester table
On the positioning support plate of positioning clamping test fixture is installed, the socket fixing seat of installation socket is embedded in the positioning support plate.
8. fingerprint module sensitivity test auxiliary fixture according to claim 7, which is characterized in that the bottom of the fixed plate
Portion has the guide pad of back taper, is provided at the top of the socket fixing seat and the matched guide groove of the guide pad, test
For jig in clamping position on positioning support plate, guide pad is inserted into pre- directing in guide groove, to guarantee that probe is smoothly inserted into socket,
Prevent probe deformations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106642.XU CN208476967U (en) | 2018-07-12 | 2018-07-12 | Fingerprint module sensitivity test auxiliary fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106642.XU CN208476967U (en) | 2018-07-12 | 2018-07-12 | Fingerprint module sensitivity test auxiliary fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208476967U true CN208476967U (en) | 2019-02-05 |
Family
ID=65210498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821106642.XU Expired - Fee Related CN208476967U (en) | 2018-07-12 | 2018-07-12 | Fingerprint module sensitivity test auxiliary fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208476967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014600A (en) * | 2019-05-31 | 2020-12-01 | 三赢科技（深圳）有限公司 | Test fixture and test machine |
| CN114217102A (en) * | 2021-09-29 | 2022-03-22 | 杭州长川科技股份有限公司 | Module testing device |
-
2018
- 2018-07-12 CN CN201821106642.XU patent/CN208476967U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014600A (en) * | 2019-05-31 | 2020-12-01 | 三赢科技（深圳）有限公司 | Test fixture and test machine |
| CN112014600B (en) * | 2019-05-31 | 2023-11-24 | 三赢科技（深圳）有限公司 | Test fixture and test machine |
| CN114217102A (en) * | 2021-09-29 | 2022-03-22 | 杭州长川科技股份有限公司 | Module testing device |
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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: 20190205 Termination date: 20210712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |