CN215375511U

CN215375511U - Linkage type display screen test fixture

Info

Publication number: CN215375511U
Application number: CN202121444212.0U
Authority: CN
Inventors: 蔡兴杰
Original assignee: Hefei Meiming Electronic Technology Co ltd
Current assignee: Hefei Meiming Electronic Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-31
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a linkage type display screen test fixture which comprises a support, a carrier arranged on the support, a communication assembly and a flexible circuit board, wherein the communication assembly comprises a lower clamping plate, an upper clamping plate, a needle die assembly, a prepressing block, a bird's beak type buckle I, a bird's beak type buckle II, an upper pressing block and a connecting rod, the lower clamping plate is obliquely arranged on the support, the upper clamping plate is hinged on the lower clamping plate, and the needle die assembly is positioned on the lower clamping plate and is electrically connected with the flexible circuit board. Through the FPC pressure that will await measuring the display screen of briquetting on needle module, overturn the punch holder after that and make punch holder and lower plate laminating and by beak formula buckle locking, punch holder and pre-compaction piece and FPC contact so reach the effect of the thimble intercommunication on FPC and the needle module, wherein open for a key between beak formula buckle and the punch holder, and then convenient operation, improvement efficiency of software testing.

Description

Linkage type display screen test fixture

Technical Field

The utility model relates to the technical field of test jigs, in particular to a linkage type display screen test jig.

Background

In order to effectively ensure the quality of the display panel, a technician performs a series of performance tests, such as a lighting test, a Gamma Tuning test, and the like, on the display panel during the production process of the display panel, wherein the tests all require the conduction device to be connected to the FPC on the display panel, so as to achieve the conduction of the display panel.

Publication No. CN209000508U discloses a display panel switches on frock, which comprises a bracket, and the support includes roof and bottom plate, is provided with the carrier on the roof, is provided with the spacing fixed knot structure that is used for fixing a position LCD screen on the carrier and is used for dodging FPC's hole, is provided with the triangular support structure that the slope was arranged between roof and the bottom plate, and bearing structure arranges in the below in hole, triangular support structure one end and bottom plate rigid coupling, the other end and roof overlap joint, the last rigid coupling of bearing structure has the device that switches on that is used for connecting FPC.

Above-mentioned prior art communicates FPC and circular telegram needle mould subassembly through the mode of directly pressing, needs to press many times for make the golden finger on the FPC communicate with the probe on the needle mould subassembly, and efficiency of software testing is lower so.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a linkage type display screen test fixture to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a linkage type display screen test fixture, includes the support, sets up carrier, intercommunication subassembly and the flexible circuit board on the support, wherein:

intercommunication subassembly includes lower plate, punch holder, needle module, briquetting in advance, beak formula buckle I, beak formula buckle II, goes up briquetting and connecting rod, the setting of lower plate slope is on the support, and the punch holder articulates on the lower plate, and needle module be located the lower plate and with flexible circuit board electric connection, the briquetting rotates the installation in advance and is used for pressing the FPC on the display screen on needle module on the lower plate, beak formula buckle I and beak formula buckle II are located the both sides of lower plate for block the punch holder when the punch holder closes the lower plate, go up the briquetting and be located the punch holder, punch holder closes punch holder and pre-compaction piece contact when the lower plate.

Preferably, the test fixture further comprises a hot plug mechanism, the hot plug mechanism comprises a rotary stop block, a limiting plate, a magnet mounting block, a magnet, a magnetic switch and a pressing block, the rotary stop block is rotatably mounted on the support, the limiting plate is arranged on the rotary stop block, the limiting plate can block the beak type buckle I when the rotary stop block is in contact with the side face of the beak type buckle I, the magnet mounting block is arranged on the support, the magnet mounting block and the rotary stop block are respectively provided with a magnet, the magnets arranged on the side face and the back face of the rotary stop block are used for being in contact with the magnet on the magnet mounting block and the magnet on the support when the rotary stop block is in contact with the magnet mounting block, the magnetic switch is mounted on the support through the pressing block, and a magnetic field generated by the magnet at the bottom of the rotary stop block can act on the magnetic switch when the limiting plate is clamped on the beak type buckle I, the magnetic switch is in an open state and is electrically connected with the flexible circuit board for controlling the on-off of the flexible circuit board.

Preferably, beak formula buckle I and beak formula buckle II articulate on the lower plate, and beak formula buckle I passes through the connecting rod with beak formula buckle II and is connected.

Preferably, one side of punch holder is equipped with the draw-in groove with I joint of beak formula buckle, and the opposite side is equipped with the draw-in groove with II joints of beak formula buckle.

Preferably, the prepressing block is provided with a prepressing rod for pressing the FPC on the display screen on the needle die assembly.

Preferably, the upper pressing block is provided with a placing groove matched with the pre-pressing rod.

Preferably, the support comprises a bottom plate and a top plate which are arranged in parallel, a side plate is arranged between the bottom plate and the top plate, the bottom plate, the top plate and the side plate are enclosed to form a frame type structure.

Preferably, the carrier comprises a carrier, a limiting block and a sucker, the carrier is arranged on the top plate, and the limiting block and the sucker are arranged on the carrier.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the FPC of the display screen to be tested is pressed on the needle die assembly through the pre-pressing block, then the upper clamping plate is turned over to enable the upper clamping plate to be attached to the lower clamping plate and locked by the beak-shaped buckle, then the upper pressing block is contacted with the pre-pressing block and the FPC, the effect of communicating the FPC with the ejector pins on the needle die assembly is achieved, wherein the beak-shaped buckle and the upper clamping plate are opened by one key, so that the operation is convenient, and the testing efficiency is improved.

According to the utility model, the rotating stop block rotates to be in contact with the beak type buckle I, so that the beak type buckle I is clamped by the limiting plate, and the magnetic force generated by the magnet at the bottom of the rotating stop block in contact with the beak type buckle I acts on the magnetic switch, so that the magnetic switch is in an open state, and the FPC is prevented from being still in a power-on state when being unloaded.

Drawings

Fig. 1 is a three-dimensional schematic view of the overall structure of the present invention.

FIG. 2 is a three-dimensional schematic view of a communicating member of the present invention.

Fig. 3 is a rear view of the communication assembly of the present invention.

Fig. 4 is a schematic view of a portion a of fig. 1.

In the figure: the device comprises a support 1, a carrier 2, a communication component 3, a flexible circuit board 4, a hot plug mechanism 5, a bottom plate 11, a top plate 12, a side plate 13, a carrying table 21, a limiting block 22, a sucking disc 23, a lower clamping plate 31, an upper clamping plate 32, a pin die component 33, a prepressing block 34, a beak type buckle 35, a beak type buckle 36, an upper pressing block 37, a connecting rod 38, a clamping groove 321, a prepressing rod 341, a rotating stop block 51, a limiting plate 52, a magnet mounting block 53, a magnet 54, a magnetic switch 55 and a pressing block 56.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1 to 4, the present invention provides a technical solution:

the utility model provides a linkage type display screen test fixture, includes support 1, sets up carrier 2, intercommunication subassembly 3 and flexible circuit board 4 on support 1, wherein:

the support 1 comprises a bottom plate 11 and a top plate 12 which are arranged in parallel, a side plate 13 is arranged between the bottom plate 11 and the top plate 12, the bottom plate 11, the top plate 12 and the side plate 13 form a frame structure, the carrier 2 comprises a carrier 21, a limiting block 22 and a suction disc 23, the carrier 21 is arranged on the top plate 12, the limiting block 22 and the suction disc 23 are arranged on the carrier 21, and the limiting block 22 limits the display screen when the display screen is placed on the carrier 21 and the suction disc 23 absorbs the display screen;

the communicating component 3 comprises a lower clamp plate 31, an upper clamp plate 32, a needle module 33, a prepressing block 34, a bird's beak type buckle I35, a bird's beak type buckle II 36, an upper pressing block 37 and a connecting rod 38, wherein the lower clamp plate 31 is obliquely arranged on the bracket 1, the upper clamp plate 32 is hinged on the lower clamp plate 31, the upper clamp plate 32 can turn around the lower clamp plate 31 and is attached to the lower clamp plate 31, the needle module 33 is arranged on the lower clamp plate 31 and is electrically connected with the flexible circuit board 4, the needle module 33 is a socket with a probe, when the FPC on the display screen to be tested is communicated with the probe on the needle module 33, the display screen can be lighted for testing, the prepressing block 34 is rotatably arranged on the lower clamp plate 31, the prepressing block 34 is provided with a prepressing rod 341 for pressing the FPC on the needle module 33, the FPC can be prepressed by turning the prepressing block 34, the bird's beak type buckle I35 and the bird's beak type buckle II 36 are arranged at two sides of the lower clamp plate 31, wherein the bird mouth type buckle I35 and the bird mouth type buckle II 36 are hinged on the lower clamping plate 31, the bird mouth type buckle I35 and the bird mouth type buckle II 36 are connected through a connecting rod 38, then the beak type buckle I35 is pulled to drive the beak type buckle II 36 to synchronously turn over for a certain angle, so as to achieve the effect of linkage, one side of the upper clamping plate 32 is provided with a clamping groove 321 clamped with the beak type buckle I35, the other side is provided with a clamping groove 321 clamped with the beak type buckle II 36, when the upper clamp plate 32 and the lower clamp plate 31 are attached, the bird beak type buckle I35 and the bird beak type buckle II 36 are respectively clamped in the clamping groove 321 on the upper clamp plate 32, the upper pressing block 37 is positioned on the upper clamp plate 32, the upper pressing block 37 is contacted with the pre-pressing block 34 when the upper clamp plate 32 is closed on the lower clamp plate 31, the upper pressing block 37 is provided with a placing groove which is matched with the pre-pressing rod 341, and the situation that the upper pressing block 37 is blocked and cannot be contacted with the FPC due to the contact of the upper pressing block 37 and the pre-pressing rod 341 is avoided.

The test fixture further comprises a hot plug mechanism 5, the hot plug mechanism 5 comprises a rotary stopper 51, a limiting plate 52, a magnet mounting block 53, a magnet 54, a magnetic switch 55 and a pressing block 56, the rotary stopper 51 is rotatably mounted on the bracket 1, the limiting plate 52 is arranged on the rotary stopper 51, the limiting plate 52 can block the beak type buckle I35 when the rotary stopper 51 is contacted with the side surface of the beak type buckle I35, so as to achieve the effect of locking the beak type buckle I35, the magnet mounting block 53 is arranged on the bracket 1, the magnet mounting block 53 and the rotary stopper 51 are all provided with the magnet 54, wherein the magnets 54 arranged on the side surface and the back surface of the rotary stopper 51 are used for being contacted with the magnet 54 on the magnet mounting block 53 and the magnet 54 on the bracket 1 when the rotary stopper 51 is contacted with the magnet mounting block 53, so that the rotary stopper 51 is prevented from falling due to the action of gravity when the rotary stopper 51 is contacted with the magnet mounting block 53, magnetic switch 55 is installed on support 1 through briquetting 56, and the magnetic field that the magnet 54 of rotatory dog 51 bottom produced can act on magnetic switch 55 when limiting plate 52 card is on beak formula buckle I35 for magnetic switch 55 is in the state of opening, and magnetic switch 55 and flexible circuit board 4 electric connection, is used for controlling the break-make of flexible circuit board 4.

The test principle is as follows: the display screen to be tested is placed on the carrier 21 and is limited by the limiting block 22 and is adsorbed by the sucking disc 23, then the FPC of the display screen is butted with the needle die assembly 33, the FPC can be pressed on the needle die assembly 33 by turning the prepressing block 34 to realize prepressing, then the upper clamping plate 32 is turned over to enable the upper clamping plate 32 to be attached to the lower clamping plate 31, then the upper pressing block 37 on the upper clamping plate 32 is contacted with the FPC to achieve the effect of pressing each area of the FPC, then golden fingers on the FPC are communicated with the probes of the needle die assembly 33, in order to avoid taking out the display screen under the condition of electrification, the rotating stop block 51 is rotated after the upper clamping plate 32 is attached to the lower clamping plate 31, the side surface of the rotating stop block 51 is contacted with the side surface of the beak type buckle I35, then the limiting plate 52 blocks the beak type buckle I35, at the moment, a magnetic field generated by the magnet 54 at the bottom of the rotating stop block 51 can act on the magnetic switch 55, so that the magnetic switch 55 is in an on state, and the display screen is lighted for testing at this time;

when taking out FPC, it makes limiting plate 52 break away from beak formula buckle I35 to rotate rotatory dog 51, so the magnetic field that magnet 54 bottom rotatory dog 51 produced can't act on magnetic switch 55, make magnetic switch 55 be in the state of closing, and then the display screen outage of test, avoid the condition of electrified uninstallation, press beak formula buckle I35 after that, make beak formula buckle I35 break away from the draw-in groove 321 rather than the contact, and beak formula buckle II 36 also realizes the upset under the drive of connecting rod 38, and then beak formula buckle II 36 breaks away from the draw-in groove 321 rather than the contact, the upset can be realized to punch holder 32 this moment, and then take out the test that FPC accomplished the display screen.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a linkage type display screen test fixture, includes support (1), sets up carrier (2), intercommunication subassembly (3) and flexible circuit board (4) on support (1), its characterized in that:

the communication assembly (3) comprises a lower clamping plate (31), an upper clamping plate (32), a needle die assembly (33), a prepressing block (34), a bird's beak type buckle I (35), a bird's beak type buckle II (36), an upper pressing block (37) and a connecting rod (38), wherein the lower clamping plate (31) is obliquely arranged on the bracket (1), the upper clamping plate (32) is hinged on the lower clamping plate (31), the needle die assembly (33) is positioned on the lower clamping plate (31) and is electrically connected with the flexible circuit board (4), the prepressing block (34) is rotatably arranged on the lower clamping plate (31) and is used for pressing an FPC (flexible printed circuit) on a display screen on the needle die assembly (33), the bird's beak type buckle I (35) and the bird's beak type buckle II (36) are positioned on two sides of the lower clamping plate (31) and are used for closing the upper clamping plate (32) when the lower clamping plate (31) is clamped on the upper clamping plate (32), and the upper pressing block (37) is positioned on the upper clamping plate (32), when the upper clamping plate (32) is closed on the lower clamping plate (31), the upper pressing block (37) is contacted with the pre-pressing block (34).

2. The linkage type display screen test fixture of claim 1, wherein: the test fixture further comprises a hot plug mechanism (5), the hot plug mechanism (5) comprises a rotary stop block (51), a limiting plate (52), a magnet mounting block (53), a magnet (54), a magnetic switch (55) and a pressing block (56), the rotary stop block (51) is rotatably mounted on the support (1), the limiting plate (52) is arranged on the rotary stop block (51), the limiting plate (52) can block the bird mouth type buckle I (35) when the rotary stop block (51) is in contact with the side face of the bird mouth type buckle I (35), the magnet mounting block (53) is arranged on the support (1), the magnet mounting block (53) and the rotary stop block (51) are respectively provided with a magnet (54), wherein the magnets (54) arranged on the side face and the back face of the rotary stop block (51) are used for being in contact with the magnet (54) on the magnet mounting block (53) and the magnet (54) on the support (1) when the rotary stop block (51) is in contact with the magnet mounting block (53), the magnetic switch (55) is mounted on the support (1) through the pressing block (56), when the limiting plate (52) is clamped on the beak type buckle I (35), a magnetic field generated by the magnet (54) at the bottom of the rotary stopper (51) can act on the magnetic switch (55), so that the magnetic switch (55) is in an open state, and the magnetic switch (55) is electrically connected with the flexible circuit board (4) and used for controlling the on-off of the flexible circuit board (4).

3. The linkage type display screen test fixture of claim 2, wherein: the bird mouth type buckle I (35) and the bird mouth type buckle II (36) are hinged on the lower clamping plate (31), and the bird mouth type buckle I (35) is connected with the bird mouth type buckle II (36) through a connecting rod (38).

4. The linkage type display screen test fixture of claim 3, wherein: one side of punch holder (32) is equipped with draw-in groove (321) with beak formula buckle I (35) joint, and the opposite side is equipped with draw-in groove (321) with beak formula buckle II (36) joint.

5. The linkage type display screen test fixture of claim 1, wherein: the pre-pressing block (34) is provided with a pre-pressing rod (341) for pressing the FPC on the display screen onto the needle die assembly (33).

6. The linkage type display screen test fixture of claim 5, wherein: the upper pressing block (37) is provided with a placing groove matched with the pre-pressing rod (341).

7. The linkage type display screen test fixture of claim 1, wherein: the support (1) comprises a bottom plate (11) and a top plate (12) which are arranged in parallel, a side plate (13) is arranged between the bottom plate (11) and the top plate (12), and the bottom plate (11), the top plate (12) and the side plate (13) enclose to form a frame type structure.

8. The linkage type display screen test fixture of claim 7, wherein: the carrier (2) comprises a carrier (21), a limiting block (22) and a sucker (23), the carrier (21) is arranged on the top plate (12), and the limiting block (22) and the sucker (23) are arranged on the carrier (21).