CN215818707U

CN215818707U - Electrostatic discharge jig

Info

Publication number: CN215818707U
Application number: CN202120211772.5U
Authority: CN
Inventors: 仇泽军; 龚超平; 焦保佳; 李云海; 陈诚; 董海飞
Original assignee: Dongguan Depute Electronics Co ltd
Current assignee: Dongguan Depute Electronics Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2022-02-11
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses an electrostatic discharge jig which comprises a sheet metal base plate, wherein a plurality of cushion blocks used for bearing a display screen are arranged on two sides of the sheet metal base plate, a blocking strip used for positioning one side of the display screen is arranged on one side of each cushion block, an L-shaped blocking strip used for positioning one side and the top of the display screen is arranged on the other side of each cushion block, a U-shaped bracket is arranged in the middle of the sheet metal base plate, a plurality of first magnets used for being connected with a connector of the display screen are fixedly arranged on the U-shaped bracket, and a plurality of zero-potential connecting pieces used for connecting the sheet metal base plate with the ground or a lower sheet metal base plate are arranged on the sheet metal base plate.

Description

Electrostatic discharge jig

Technical Field

The utility model relates to the technical field of display screens, in particular to an electrostatic discharge jig.

Background

In the field of display screen production, a Light On Inspection (LOI) test must be performed On a display screen by a Light On Inspection apparatus, and a Light On test stage is very important for controlling the quality of the display screen, and whether a bad spot (e.g., a bright spot or a dark spot) exists On the display screen can be detected in the Light On test stage, so that a user can intercept a bad display screen in time, waste of resources is avoided, and the user can improve a manufacturing process as soon as possible.

In the prior art, polarizers are disposed below the array substrate and above the color film substrate, and the liquid crystal layer is disposed between the array substrate and the color film substrate. The polaroid includes from type membrane, polaroid body and polaroid protection film. In the process of manufacturing the display panel, a user needs to tear off the release film and then attach the polarizer below the array substrate or above the color film substrate. However, the polarizer is very likely to generate static electricity during the process of peeling off the release film. After the polarizer is attached, residual static electricity on the polarizer cannot be led out, the polarizer and liquid crystal molecules of a liquid crystal layer easily generate an additional electric field, and when a lighting test is performed, the liquid crystal molecules are easy to deflect under the action of the electric field, so that the accuracy of the lighting test and the yield of a display screen are affected.

So need release the inside static of display screen before the test to prevent to influence the accuracy of the test of lighting a lamp and the yields of display screen, need be connected connector on the display screen with the ground wire, release the inside static of display screen, the display screen can improve the yields of display screen after static electricity release, but because connector on the display screen is small, be difficult for being connected with the ground wire, lead to the wiring inefficiency, the human cost is high, the defective rate of product is also high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides the electrostatic discharge jig which is simple in structure and convenient to manufacture, reduces the connection difficulty between the connector and the ground wire, improves the wiring efficiency, reduces the labor cost and improves the yield of products.

In order to achieve the purpose, the utility model provides an electrostatic discharge jig which comprises a sheet metal base plate, wherein a plurality of cushion blocks for bearing a display screen are arranged on two sides of the sheet metal base plate, a blocking strip for positioning one side of the display screen is arranged on one side of each cushion block, an L-shaped blocking strip for positioning one side and the top of the display screen is arranged on the other side of each cushion block, a U-shaped bracket is arranged in the middle of the sheet metal base plate, a plurality of first magnets for being connected with a connector of the display screen are fixedly arranged on the U-shaped bracket, and a plurality of zero-potential connecting pieces for connecting the sheet metal base plate with the ground or a lower-layer sheet metal base plate are arranged on the sheet metal base plate.

Preferably, the zero-potential connector is a metal chain.

Preferably, the zero potential connecting piece is a contact adjusting block, connecting blocks are installed on two sides of the metal plate bottom plate, and the connecting blocks are fixedly connected with the contact adjusting block through hand-tightening bolts.

Preferably, first U-shaped holes are formed in two sides of the connecting block, the contact adjusting block is L-shaped, second U-shaped holes are formed in two sides of the contact adjusting block, and the first U-shaped holes and the second U-shaped holes are arranged correspondingly.

Preferably, a second groove is formed in the periphery of the metal plate bottom plate, a rubber cushion block is fixedly arranged below the second groove, and the rubber cushion block is conical.

Preferably, the cushion block is provided with a plurality of first grooves, and the first grooves are internally provided with second magnets.

Preferably, a plurality of third magnets are fixedly arranged on both sides of the U-shaped bracket.

Preferably, the sheet metal base plate is provided with a plurality of stamping holes for reducing the weight of the sheet metal base plate.

Preferably, a round chamfer is arranged at the turning position of the L-shaped barrier strip.

Preferably, the cushion block is an antistatic synthetic stone material member.

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

1. the U-shaped bracket is arranged in the middle of the sheet metal base plate, the U-shaped bracket is fixedly provided with the first magnets for being connected with the display screen connector, the display screen connector can be directly connected with the first magnets or connected with the magnetic U-shaped bracket, static electricity in the display screen is released onto the sheet metal base plate and then is connected with the ground through the zero potential connecting piece connected onto the sheet metal base plate to release the static electricity, the structure is simple, the manufacturing is convenient, the connecting difficulty between the connector and the ground wire is reduced, the wiring efficiency is improved, the labor cost is reduced, and the yield of products is improved.

2. According to the utility model, the display screen is placed on the cushion block, the connector of the display screen is automatically connected with the first magnet or the U-shaped bracket under the attraction of the magnet, the placing jig and the electrostatic discharge jig are combined together, and electrostatic discharge is carried out in the process of placing and transferring the product, so that the electrostatic discharge process is saved, the production time of the product is reduced, and the production cost of the product is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of an electrostatic discharge fixture according to the present invention;

FIG. 2 is a schematic structural view of an electrostatic discharge fixture and a display panel provided in the present invention;

FIG. 3 is an exploded view of an electrostatic discharge device and a display panel of the present invention;

fig. 4 is a schematic diagram of a stacked structure of an electrostatic discharge fixture provided by the present invention.

The figure includes:

the structure comprises a metal plate bottom plate 1, a cushion block 2, a baffle strip 3, a baffle strip 4, an L-shaped baffle strip 5, a U-shaped bracket 61, a first magnet 21, a first groove 62, a second magnet 63, a third magnet 11, a connecting block 12, a first U-shaped hole 7, a hand-tightening bolt 8, a contact adjusting block 81, a second U-shaped hole 9, a chain 15, a punching hole 13, a second groove 13, a rubber cushion block 14 and a round chamfer 41.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are one embodiment of the present invention, and not all embodiments of the present invention. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the utility model provides an electrostatic discharge jig, which comprises a sheet metal base plate 1, wherein a plurality of cushion blocks 2 for bearing display screens are arranged on two sides of the sheet metal base plate 1, in this embodiment, the number of the cushion blocks 2 is 8, the number of the display screens arranged on the cushion blocks 2 is also 8, a barrier strip 3 for positioning one side of the display screens is arranged on one side of the cushion blocks 2, the barrier strip 3 is a cuboid and is in a long strip shape, an L-shaped barrier strip 4 for positioning one side and the top of the display screens is arranged on the other side of the cushion blocks, a U-shaped bracket 5 is arranged in the middle of the sheet metal base plate 1, a plurality of first magnets 61 for connecting with a display screen connector are fixedly arranged on the U-shaped bracket 5, a plurality of zero-potential connecting pieces for connecting the sheet metal base plate 1 with the ground or a lower sheet metal base plate 1 are arranged on the sheet metal base plate 1, the display screen connector can be directly connected with the first magnet 61 and also can be connected to the U-shaped bracket 5 with magnetism, static in the display screen is released to the sheet metal base plate 1, and the zero potential connecting piece connected to the sheet metal base plate 1 is connected with the ground through the second connecting piece, so that the static is released.

Further, the zero potential connecting piece is a metal chain 9, the zero potential connecting piece can also be a metal spring, the number of the zero potential connecting pieces can be set to be multiple, so that the installed zero potential connecting pieces are prevented from failing, and multiple probabilities capable of avoiding failure are installed.

As shown in fig. 3, the tail of the upper metal chain 9 needs to contact the sheet metal bottom plate 1 of the lower layer after stacking, the length of the metal chain 9 can be processed according to the actual production requirement, and the connection mode of the metal chain 9 can also be processed according to the actual production requirement.

As shown in fig. 1, the zero potential connecting member is a contact adjusting block 8, connecting blocks 11 are installed on two sides of the sheet metal base plate 1, the connecting blocks 11 are fixedly connected with the contact adjusting block 8 through hand-tightening bolts 7, and specifically, the connecting blocks 11 can also be fixedly connected with the contact adjusting block 8 through welding or riveting and other modes.

Further, as shown in fig. 4, first U-shaped holes 12 are formed in two sides of the connecting block 11, the contact adjusting block 8 is L-shaped, second U-shaped holes 81 are formed in two sides of the contact adjusting block 8, and the first U-shaped holes 12 and the second U-shaped holes 81 are correspondingly arranged.

Specifically, as shown in fig. 1, the hand-tightening bolt 7 passes through the first U-shaped hole 12 and the second U-shaped hole 81 to fixedly connect the connecting block 11 and the contact adjusting block 8 together.

As shown in fig. 3, the bottom of the contact adjusting block 8 needs to contact the sheet metal base plate 1 on the lower layer after stacking, the height of the contact adjusting block 8 can be adjusted according to actual production requirements, and the contact adjusting block 8 can be adjusted in height through the first U-shaped hole 12 and the second U-shaped hole 81.

As shown in fig. 3, the sheet metal base plate 1 is provided with second grooves 13 all around, the quantity of second grooves 13 is 4, the fixed rubber cushion 14 that has installed in second grooves 13 below, second grooves 13 are used for holding the rubber cushion 14 on upper strata, rubber cushion 14 is the toper, rubber cushion 14 upper end is great, and the lower extreme is less, can place better inside second grooves 13 for the tool piles up more firmly and simply.

As shown in fig. 1, a plurality of first grooves 21 are formed in the cushion block 2, the first grooves 21 are not marked in the drawing, the number of the first grooves 21 is 6, second magnets 62 are arranged in the first grooves 21, the second magnets 62 are tightly fitted in the first grooves 21, and the display screen is fixed on the cushion block 2 by the attraction force of the second magnets 62, so that the display screen is not easy to move.

As shown in fig. 4, a plurality of third magnets 63 are fixedly installed on both sides of the U-shaped bracket 5, so that the decrease of the attractive force of the display screen connector due to the failure of the first magnet 61 can be prevented, and the reliability of the jig can be improved.

As shown in fig. 1, the sheet metal base plate 1 is provided with a plurality of stamping holes 15 for reducing the weight of the sheet metal base plate 1.

As shown in fig. 1, a round chamfer 41 is provided at the turning point of the L-shaped barrier strip 4.

The cushion block 2 is an anti-static synthetic stone material component.

The use process of the electrostatic discharge jig comprises the following steps: firstly, a display screen needing electrostatic discharge is placed on a cushion block 2; secondly, the connector of the display screen is automatically connected with the first magnet 61 or the magnetic U-shaped bracket; and thirdly, the static electricity on the display screen is released to the sheet metal base plate 1, and finally, the static electricity on the sheet metal base plate 1 is connected with the ground through a zero-crossing potential connecting piece.

In conclusion, the beneficial effects of the utility model are as follows:

the middle part of the sheet metal base plate 1 is provided with the U-shaped bracket 5, the U-shaped bracket 5 is fixedly provided with a plurality of first magnets 61 used for being connected with a display screen connector, the display screen connector can be directly connected with the first magnets 61 and also can be connected with the magnetic U-shaped bracket 5, static electricity in the display screen is released to the sheet metal base plate 1 and then is connected with the ground through a zero potential connecting piece connected to the sheet metal base plate 1 to release the static electricity, the structure is simple, the manufacture is convenient, the connecting difficulty between the connector and the ground wire is reduced, the wiring efficiency is improved, the labor cost is reduced, and the yield of products is improved; according to the utility model, the display screen is placed on the cushion block 2, the connector of the display screen is automatically connected with the first magnet 61 or the U-shaped bracket 5 under the attraction of the magnet, the placing jig and the electrostatic releasing jig are combined together, and electrostatic release is carried out in the process of placing and transferring the product, so that the electrostatic releasing process is saved, the production time of the product is reduced, and the production cost of the product is reduced.

Claims

1. The utility model provides an electrostatic discharge tool, its characterized in that, includes panel beating bottom plate (1), a plurality of cushion (2) that are used for bearing the weight of the display screen are installed to panel beating bottom plate (1) both sides, blend stop (3) that are used for fixing a position display screen one side are installed to cushion (2) one side, and L type blend stop (4) that are used for fixing a position display screen one side and top are installed to the opposite side, U type bracket (5) have been installed at panel beating bottom plate (1) middle part, fixed first magnet (61) that are used for being connected with the display screen connector of having installed a plurality of on U type bracket (5), panel beating bottom plate (1) facial make-up is equipped with the zero potential connecting piece that a plurality of is used for being connected panel beating bottom plate (1) and ground or lower floor panel beating bottom plate (1).

2. The electrostatic discharge fixture as claimed in claim 1, wherein the zero-potential connector is a metal chain (9).

3. The electrostatic discharge fixture according to claim 1, wherein the zero potential connector is a contact adjusting block (8), connecting blocks (11) are installed on two sides of the sheet metal base plate (1), and the connecting blocks (11) are fixedly connected with the contact adjusting block (8) through hand-tightening bolts (7).

4. The electrostatic discharge fixture according to claim 3, wherein first U-shaped holes (12) are formed in two sides of the connecting block (11), the contact adjusting block (8) is L-shaped, second U-shaped holes (81) are formed in two sides of the contact adjusting block (8), and the first U-shaped holes (12) and the second U-shaped holes (81) are correspondingly formed.

5. The electrostatic discharge fixture according to claim 1, wherein a second groove (13) is formed around the sheet metal base plate (1), a rubber pad (14) is fixedly arranged below the second groove (13), and the rubber pad (14) is conical.

6. The electrostatic discharge fixture as claimed in claim 1, wherein the pad (2) has a plurality of first grooves (21), and the first grooves (21) have second magnets (62) therein.

7. The electrostatic discharge fixture as claimed in claim 1, wherein a plurality of third magnets (63) are fixedly installed on both sides of the U-shaped bracket (5).

8. The electrostatic discharge fixture according to claim 1, wherein the sheet metal base plate (1) is provided with a plurality of punching holes (15) for reducing the weight of the sheet metal base plate (1).

9. The electrostatic discharge fixture according to claim 1, wherein a rounded chamfer (41) is formed at a turning point of the L-shaped barrier strip (4).

10. The electrostatic discharge fixture as claimed in claim 1, wherein the pad (2) is an antistatic synthetic stone member.