CN216388718U

CN216388718U - Universal jig and testing device

Info

Publication number: CN216388718U
Application number: CN202122677398.0U
Authority: CN
Inventors: 刘权; 严沛; 兰帮云
Original assignee: Wuhan Jingce Electronic Group Co Ltd; Wuhan Jingyitong Electronic Technology Co Ltd
Current assignee: Wuhan Jingce Electronic Group Co Ltd; Wuhan Jingyitong Electronic Technology Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-26
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a universal jig and a testing device, and belongs to the field of display panel testing. The universal jig comprises a bottom plate and a conduction assembly. The switch-on component comprises a switching PCB and a press-connection piece, the switching PCB and the press-connection piece are arranged on the bottom plate at intervals, the switching PCB is movably arranged, a gold finger and a buckle connector used for buckling the display panel are arranged on the switching PCB, the gold finger and the switching PCB are integrally formed, the gold finger and the buckle connector are switched on, and the press-connection piece and the gold finger are arranged oppositely to switch on the gold finger through press-connection. The universal jig provided by the embodiment of the utility model not only can be frequently replaced, but also can realize crimping conduction through the golden finger, so that the phenomenon that the connector is bent and damaged due to frequent crimping is avoided, and the service life of the adapting PCB is prolonged.

Description

Universal jig and testing device

Technical Field

The utility model belongs to the field of display panel testing, and particularly relates to a universal jig and a testing device.

Background

With the rapid development of display panels, the demand for display panels in the market is increasing, consumers seek more and more display effects, and the types of display panels are more and more.

For the micro display panel, the size is small, the shape and size change is very frequent in the research and development process, in order to avoid adding a jig for changing the display panel every time, usually, an additional through design of a through connection PCB is needed, specifically, a crimping connector and a butt-buckling connector are arranged on the through connection PCB, the crimping connector conducts a spring piece probe through crimping, the butt-buckling connector is in butt-buckling with the connector of the display panel, and therefore the whole jig can be prevented from being changed.

However, the above-mentioned press-fit connector is soldered on the adapting PCB, and the contact point (saw-tooth shape) of the press-fit connector is easily bent and damaged during the frequent pressing process, which results in the reduction of the service life of the adapting PCB.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or the improvement requirements of the prior art, the utility model provides a universal jig and a testing device, and aims to realize crimping conduction through a golden finger, avoid the phenomenon of bending damage of a connector due to frequent crimping and prolong the service life of a switching PCB.

In a first aspect, the utility model provides a universal jig, which comprises a bottom plate and a conducting assembly;

the switch-on component comprises a switching PCB and a crimping piece, the switching PCB and the crimping piece are arranged at intervals on the bottom plate, the switching PCB is movably arranged, a gold finger and a buckling connector used for buckling a display panel are arranged on the switching PCB, the gold finger and the switching PCB are integrally formed, the gold finger and the buckling connector are connected, the crimping piece and the gold finger are arranged oppositely to conduct the gold finger in a crimping mode.

Optionally, the crimping piece includes a cover plate and a mold core fixing seat, the cover plate is liftable relative to the bottom plate, the mold core fixing seat is located on the bottom surface of the cover plate, and a plurality of probes for conducting the golden fingers are inserted in the mold core fixing seat.

Optionally, the crimping piece further comprises a probe rotating plate and an FPC, the probe rotating plate is located on the cover plate, and the probe rotating plate is communicated with the plurality of probes and the FPC respectively.

Optionally, a carrier plate is arranged on the bottom plate, the carrier plate is located between the bottom plate and the adapter PCB, a vacuum adsorption hole for adsorbing the display panel is formed in the carrier plate, a position avoiding hole for accommodating the display panel is formed in the adapter PCB, and the vacuum adsorption hole and the position avoiding hole are arranged oppositely.

Optionally, the carrier plate has a carrier, the carrier and the avoiding hole are arranged oppositely, and the vacuum absorbing hole is located on the carrier.

Optionally, a plurality of connecting bolts for connecting the bottom plate are inserted into the carrier plate, and the plurality of connecting bolts are arranged at intervals along the circumferential direction of the carrier plate.

Optionally, the number of the gold fingers and the number of the fastening connectors are multiple, the gold fingers and the fastening connectors are in one-to-one correspondence and are connected, and the gold fingers and the fastening connectors are arranged at intervals.

Optionally, the through-connection PCB has a plurality of positioning hole groups arranged at intervals, the positioning hole groups are in one-to-one correspondence with the plurality of golden fingers, each positioning hole group includes two positioning holes arranged at intervals, the bottom plate has two positioning pins arranged at intervals, and the two positioning pins correspond to any one of the two positioning holes of the positioning hole group.

Optionally, a plurality of the gold fingers are respectively arranged on the top and the bottom of the adapting PCB board.

In a second aspect, the present invention further provides a testing apparatus, which includes the universal fixture according to the first aspect.

The technical scheme provided by the embodiment of the utility model has the following beneficial effects:

for the universal fixture provided by the embodiment of the utility model, when the display panel is subjected to the compression test, firstly, the connector of the display panel is buckled with the buckling connector. Then, the golden finger is pressed and connected through the pressing connection piece, so that the connection of the butting connector and the connector of the display panel can be sequentially realized, and the connection of the display panel is finally realized.

Further, golden finger and switching PCB board integrated into one piece, the contact point on the golden finger can not buckle at the in-process of long-time crimping and warp to avoid the unable problem that switches on of display panel.

In addition, because the switching PCB board movably arranges on the bottom plate, even make like this that the size of display panel changes, only need according to display panel change go out the switching PCB board that corresponds can, through correspond change switching PCB board come match go out the golden finger of looks adaptation and the connector of lock can, and need not redesign crimping spare and bottom plate, realize that the tool is general.

That is to say, the universal jig provided by the embodiment of the utility model not only can be frequently replaced, but also can realize crimping conduction through the gold finger, so that the phenomenon that the connector is bent and damaged due to frequent crimping is avoided, and the service life of the adapting PCB is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a general jig according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a golden finger according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a crimp member provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an adapter PCB provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a carrier according to an embodiment of the present invention.

The symbols in the drawings represent the following meanings:

1. a base plate; 11. a carrier plate; 111. a vacuum adsorption hole; 112. a stage; 12. positioning pins; 2. a conducting component; 21. switching the PCB; 211. a golden finger; 212. a snap-on connector; 213. positioning a hole group; 214. positioning holes; 215. avoiding holes; 22. a crimping member; 221. a cover plate; 222. a mold core fixing seat; 2221. a probe; 223. rotating the probe plate; 224. FPC; 100. a display panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 is a schematic structural diagram of a general jig according to an embodiment of the present invention, and as shown in fig. 1, the general jig includes a base plate 1 and a conduction assembly 2.

The conduction assembly 2 comprises an adapter PCB 21 and a pressing member 22, the adapter PCB 21 and the pressing member 22 are arranged on the bottom plate 1 at intervals, the adapter PCB 21 is movably arranged, the adapter PCB 21 is provided with a gold finger 211 and a fastening connector 212 for fastening the display panel 100, the gold finger 211 and the adapter PCB 21 are integrally formed, the gold finger 211 and the fastening connector 212 are conducted, and the pressing member 22 and the gold finger 211 are oppositely arranged to press and conduct the gold finger 211.

For the universal fixture provided by the embodiment of the present invention, when performing the compression test on the display panel 100, first, the connector of the display panel 100 is fastened to the fastening connector 212. Then, the gold finger 211 is pressed and conducted by the pressing member 22, so that the connection between the mating connector 212 and the connector of the display panel 100 can be sequentially achieved, and the conduction to the display panel 100 can be finally achieved.

Further, the gold finger 211 and the adapting PCB 21 are integrally formed, and the contact point on the gold finger 211 is not bent and deformed in the long-time crimping process, thereby avoiding the problem that the display panel 100 cannot be conducted.

In addition, because the adapting PCB 21 is movably disposed on the bottom plate 1, even if the size of the display panel 100 changes, only the corresponding adapting PCB 21 needs to be replaced according to the display panel 100, and the matching of the matched gold finger 211 and the snap connector 212 can be achieved by correspondingly replacing the adapting PCB 21, without redesigning the crimping piece 22 and the bottom plate 1, thereby achieving the universal fixture.

That is to say, the universal jig provided by the embodiment of the utility model not only can be frequently replaced, but also can realize crimping conduction through the gold finger 211, thereby avoiding the phenomenon of bending and damage of the connector due to frequent crimping, and prolonging the service life of the adapting PCB.

It is easy to understand that the test points on the gold finger 211 are all square (see fig. 2), and in the process of crimping the probe 2221, the test points on the gold finger 211 are stable in structure and large in contact area, so that the test stability can be greatly increased.

Tests show that the crimping service life of the gold finger 211 reaches 20 ten thousand times, while the crimping service life of the connector is only 5 ten thousand times, so that the service life of the adapting PCB 21 can be greatly prolonged.

Fig. 3 is a partial cross-sectional view of the crimping part according to an embodiment of the present invention, as shown in fig. 3, the crimping part 22 includes a cover plate 221 and a core holder 222, the cover plate 221 is capable of moving up and down relative to the bottom plate 1, the core holder 222 is located on a bottom surface of the cover plate 221, and a plurality of probes 2221 for conducting the gold fingers 211 are inserted into the core holder 222.

In the above embodiment, the cover plate 221 is lifted to drive the probe 2221 to lift, so as to achieve the pressing connection of the gold finger 211.

For example, the cover plate 221 may be automatically lifted by an air cylinder or an oil cylinder, so as to achieve automatic crimping.

It should be noted that in other embodiments of the present invention, the cover 221 may also be hinged to the base plate 1, so as to achieve manual crimping.

Specifically, the crimping member 22 further includes a probe rotating plate 223 and an FPC224, the probe rotating plate 223 is located on the cover plate 221, and the probe rotating plate 223 is communicated with the plurality of probes 2221 and the FPC224, respectively.

In the above embodiment, the probe 2221 can be switched by the probe rotating plate 223 and the FPC224, so that the probe 2221 can still realize stable signal transmission in the frequent ascending and descending process.

It is easy to understand that the FPC224 has a certain flexibility, and can be lifted and lowered along with the lifting and lowering of the probe rotating plate 223 without affecting the contact of the contact points.

Fig. 4 is a schematic structural diagram of an adapting PCB according to an embodiment of the present invention, and as shown in fig. 4, the number of gold fingers 211 and the number of fastening connectors 212 are multiple, the gold fingers 211 and the fastening connectors 212 are in one-to-one correspondence and are electrically connected, and the gold fingers 211 and the fastening connectors 212 are arranged at intervals.

In the above embodiment, by providing a plurality of gold fingers 211 and a plurality of snap connectors 212, a plurality of display panels 100 can be tested, thereby reducing the number of jigs.

Illustratively, each of the snap connectors 212 is snapped with a connector of one display panel 100. After the test of one display panel 100 is completed, the adapting PCB 21 is moved so that the other gold finger 211 is opposite to the pressing member 22, thereby implementing the conduction to the other display panel 100.

For example: fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and as shown in fig. 5, when the width a of the display panel 100 changes, the transverse interval between the fastening connectors 212 on the adapting PCB 21 is adjusted; when the length L of the display panel 100 changes, the longitudinal position of the fastening connector 212 on the adapting PCB 21 is adjusted, so that the display panel 100 with different sizes can be adapted.

In this embodiment, the adapting PCB 21 has a plurality of positioning hole sets 213 arranged at intervals, the positioning hole sets 213 correspond to the gold fingers 211 one by one, each positioning hole set 213 includes two positioning holes 214 arranged at intervals, the bottom plate 1 has two positioning pins 12 arranged at intervals, and the two positioning pins 12 correspond to the two positioning holes 214 of any one positioning hole set 213 one by one.

In the above embodiment, the positioning pin 12 and the positioning hole 214 are matched to ensure that the transfer PCB is moved to a proper position each time the transfer PCB is moved, so that one gold finger 211 is just opposite to the pressing member 22 at this time, and the pressing connection of the next gold finger 211 can be realized.

Illustratively, a plurality of gold fingers 211 are respectively disposed on the top and the bottom of the adapting PCB 21, so that two sets of gold fingers 211 can be disposed, that is, a plurality of gold fingers 211 are respectively disposed on the upper and lower sides of the adapting PCB 21, and thus a plurality of display panels 100 can be tested. For example: the upper and lower 9 gold fingers 211 of the transfer PCB. Therefore, when the test of the plurality of display panels 100 on one side is completed, the gold finger 211 on the other side can be tested by rotating the relay PCB 21 by 180 °.

Fig. 6 is a schematic structural diagram of a carrier according to an embodiment of the present invention, as shown in fig. 6, a carrier 11 is disposed on a bottom plate 1, the carrier 11 is located between the bottom plate 1 and a transfer PCB 21, the carrier 11 has a vacuum absorption hole 111 for absorbing a display panel 100, the transfer PCB 21 has a clearance hole 215 for accommodating the display panel 100, and the vacuum absorption hole 111 and the clearance hole 215 are disposed opposite to each other.

In the above embodiment, the vacuum suction holes 111 play a role in positioning the display panel 100, and prevent the display panel 100 from moving during the press bonding process.

Illustratively, the avoiding holes 215 are square, and each display panel 100 is located in the avoiding hole 215.

With reference to fig. 6, the carrier 11 has a carrier 112, the carrier 112 and the avoiding hole 215 are disposed opposite to each other, and the vacuum suction hole 111 is located on the carrier 112.

In the above embodiment, the stage 112 functions to support the display panel 100 so that the panel body of the display panel 100 and the connector are at the same level.

Illustratively, a plurality of connecting bolts for connecting the base plate 1 are inserted into the carrier plate 11, and the plurality of connecting bolts are arranged at intervals along the circumferential direction of the carrier plate 11, so as to connect the carrier plate 11 and the base plate 1.

The embodiment of the utility model provides a testing device which comprises the universal fixture.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The universal jig is characterized by comprising a bottom plate (1) and a conducting assembly (2);

the switch-on component (2) comprises a switching PCB (21) and a pressing piece (22), the switching PCB (21) and the pressing piece (22) are arranged on the bottom plate (1) at intervals, the switching PCB (21) is movably arranged, a gold finger (211) and a buckling connector (212) used for buckling a display panel (100) are arranged on the switching PCB (21), the gold finger (211) and the switching PCB (21) are integrally formed, the gold finger (211) and the buckling connector (212) are conducted, and the pressing piece (22) and the gold finger (211) are arranged oppositely to conduct the gold finger (211) in a pressing mode.

2. The universal jig is characterized in that the crimping part (22) comprises a cover plate (221) and a core holder (222), the cover plate (221) can be lifted relative to the bottom plate (1), the core holder (222) is located on the bottom surface of the cover plate (221), and a plurality of probes (2221) for conducting the golden fingers (211) are inserted into the core holder (222).

3. The universal fixture as claimed in claim 2, wherein the press-connection member (22) further comprises a probe rotating plate (223) and an FPC (224), the probe rotating plate (223) is located on the cover plate (221), and the probe rotating plate (223) is respectively communicated with the plurality of probes (2221) and the FPC (224).

4. The universal fixture according to claim 1, wherein the bottom plate (1) has a carrier plate (11), the carrier plate (11) is located between the bottom plate (1) and the adapting PCB (21), the carrier plate (11) has vacuum suction holes (111) for sucking the display panel (100), the adapting PCB (21) has avoiding holes (215) for accommodating the display panel (100), and the vacuum suction holes (111) and the avoiding holes (215) are arranged opposite to each other.

5. The universal fixture according to claim 4, wherein the carrier (11) has a carrier (112), the carrier (112) and the avoiding hole (215) are disposed opposite to each other, and the vacuum suction hole (111) is located on the carrier (112).

6. A universal fixture according to claim 4, characterized in that a plurality of connecting bolts for connecting the base plate (1) are inserted on the carrier plate (11), and the connecting bolts are arranged at intervals along the circumference of the carrier plate (11).

7. The universal fixture according to claim 1, wherein the number of the gold fingers (211) and the plurality of the snap connectors (212) is plural, the plurality of gold fingers (211) and the plurality of snap connectors (212) are in one-to-one correspondence and are connected, and the plurality of gold fingers (211) and the plurality of snap connectors (212) are arranged at intervals.

8. The universal jig according to claim 7, wherein the adapting PCB (21) is provided with a plurality of positioning hole groups (213) arranged at intervals, the plurality of positioning hole groups (213) are in one-to-one correspondence with the plurality of golden fingers (211), each positioning hole group (213) comprises two positioning holes (214) arranged at intervals, the bottom plate (1) is provided with two positioning pins (12) arranged at intervals, and the two positioning pins (12) are in one-to-one correspondence with the two positioning holes (214) of any one positioning hole group (213).

9. The universal fixture of claim 7, wherein a plurality of said gold fingers (211) are respectively disposed on the top and bottom of said adapting PCB board (21).

10. A test device comprising a universal fixture according to any one of claims 1-9.