CN217505920U

CN217505920U - OTP test fixture

Info

Publication number: CN217505920U
Application number: CN202220252047.7U
Authority: CN
Inventors: 蔡连灯; 傅勇; 郑宇成; 骆志锋
Original assignee: Shenzhen Tongxingda Technology Co Ltd
Current assignee: Shenzhen Tongxingda Technology Co Ltd
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-09-27
Anticipated expiration: 2032-02-07

Abstract

The utility model discloses a OTP test fixture, include: the liquid crystal display module comprises a double-plate bottom plate, a carrier plate arranged at one end of the double-plate bottom plate, a plurality of positioning blocks arranged on the carrier plate, a needle mold positioning block arranged at the other end of the double-plate bottom plate, a needle mold arranged on the needle mold positioning block, and a needle mold cover plate arranged on the needle mold in a turnover mode, wherein the positioning blocks form a containing cavity, the containing cavity positions the main body part of the liquid crystal module, a first waist-shaped hole is formed in each positioning block, a first waist-shaped hole corresponding to each positioning block of the carrier plate is provided with a plurality of first threaded holes, and the FPC of the liquid crystal module is connected with the needle mold. The OTP testing jig adopts a plurality of positioning blocks to position products, and is provided with the waist-shaped holes, so that the positioning blocks can be slidably adjusted within a certain range, and the size of the accommodating cavity is changed, thereby adapting to different products; a plurality of threaded holes are formed in the carrier plate corresponding to each positioning block, so that the positions of the positioning blocks can be conveniently adjusted, and the space avoidance requirements of different products can be effectively met.

Description

OTP test fixture

Technical Field

The utility model relates to a liquid crystal module field especially relates to a OTP test fixture.

Background

During the manufacturing process of the liquid crystal module, OTP burning needs to be performed, and after the OTP burning is completed, a worker needs to test whether the OTP burning is successful, so that an OTP testing jig needs to be used. The liquid crystal module comprises a main body part and an FPC, the main body part is placed on the test fixture for positioning, and then the FPC is electrified for testing.

The existing OTP testing jig can only be used for testing one product generally, the size of the positioning groove is fixed, and flexible adjustment can not be carried out according to different products, so that one set of jig is only suitable for one product, when the size of the product is changed, the jig needs to be replaced additionally, inconvenience is caused, and the cost is increased due to the fact that a plurality of sets of jigs are manufactured.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a OTP test fixture.

The technical scheme of the utility model as follows: an OTP test fixture, comprising: the liquid crystal display panel comprises a double-plate bottom plate, a carrier plate arranged at one end of the double-plate bottom plate, a plurality of positioning blocks arranged on the carrier plate, a needle mold positioning block arranged at the other end of the double-plate bottom plate, a needle mold arranged on the needle mold positioning block, and a needle mold cover plate arranged on the needle mold in an overturning manner, wherein the positioning blocks form a containing cavity, the containing cavity positions the main body part of the liquid crystal module, a first waist-shaped hole is formed in the positioning block, a plurality of first threaded holes are formed in the first waist-shaped hole of the carrier plate corresponding to each positioning block, and the FPC of the liquid crystal module is connected with the needle mold.

Furthermore, a gap is formed between the needle mold positioning block and the carrier plate.

Furthermore, a second waist-shaped hole is formed in the needle die positioning block, a second threaded hole is formed in the double-plate bottom plate corresponding to the second waist-shaped hole, and the length direction of the second waist-shaped hole is the same as the distance direction from the needle die positioning block to the carrier plate.

Furthermore, this OTP test fixture still including can dismantle locate FPC locating piece on the needle mould locating piece, the FPC locating piece is located one side of needle mould towards the support plate, be equipped with the recess that is used for supplying FPC to pass on the FPC locating piece.

Furthermore, a waist-shaped hole III is formed in the FPC locating block, and a threaded hole III is formed in the needle die locating block corresponding to the waist-shaped hole III.

Furthermore, the carrier plate and the FPC locating block are made of antistatic materials.

Furthermore, a pressing block is arranged on the inner side of the needle die cover plate corresponding to the FPC, and the pressing block is made of an anti-static material.

By adopting the scheme, the utility model discloses following beneficial effect has:

1. the OTP testing jig adopts a plurality of positioning blocks to position products, and is provided with the waist-shaped holes, so that the positioning blocks can be slidably adjusted within a certain range, and the size of the accommodating cavity is changed, thereby adapting to different products;

2. a plurality of threaded holes are formed in the carrier plate corresponding to each positioning block, so that the positions of the positioning blocks can be conveniently adjusted, and the space avoidance requirements of different products can be effectively met;

3. one end of the distance between the needle mold positioning plate and the carrier plate is kept away, so that the applicability to different products of FPC (flexible printed circuit) is improved, and the material cost of the jig is saved;

4. a needle die positioning plate is designed, and a second waist-shaped hole is formed in the needle die positioning plate, so that the distance between the needle die and the carrier plate can be adjusted, and the FPC is suitable for FPCs of different products.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the hidden cover plate of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the present invention provides an OTP testing fixture, including: the device comprises a double-plate bottom plate 1, a carrier plate 2 arranged at one end of the double-plate bottom plate 1, a plurality of positioning blocks 3 arranged on the carrier plate 2, a needle mold positioning block 4 arranged at the other end of the double-plate bottom plate 1, a needle mold 5 arranged on the needle mold positioning block 4, and a needle mold cover plate 6 arranged on the needle mold 5 in an overturning manner. The positioning blocks 3 enclose a containing cavity 7, the containing cavity 7 positions the main body part of the liquid crystal module, and the positioning blocks 3 are arranged on four sides of the containing cavity 7. The positioning block 3 is provided with a first waist-shaped hole 31, the carrier plate 2 is provided with a plurality of first threaded holes 32 in parallel corresponding to the first waist-shaped hole 31 of each positioning block 3, screws penetrate through the first waist-shaped holes 31 and are locked in the first threaded holes 32, so that the positioning blocks 3 are fixed on the carrier plate 1, the size of the accommodating cavity 7 can be adjusted within a certain range through the arrangement of the first waist-shaped holes 31, and therefore the applicability to products of different sizes is improved. And the first waist-shaped hole 31 of each positioning block 3 is provided with a plurality of first threaded holes 32, and the first waist-shaped hole 31 can be selectively locked in one threaded hole 32, so that the position of the positioning block 3 can be adjusted, and the space avoidance requirements of different products can be effectively met.

The FPC100 of the liquid crystal module is connected with the needle die 5, and the liquid crystal module is electrified through the needle die 5 during testing. A gap is formed between the needle mold positioning block 4 and the carrier plate 2, and the needle mold positioning block 4 and the carrier plate 2 are spaced by a certain distance to avoid a gap, so that the applicability to different products of FPC (flexible printed circuit) is improved, and the material cost of a jig is saved.

A second waist-shaped hole 41 is formed in the needle die positioning block 4, a second threaded hole is formed in the double-plate bottom plate 1 corresponding to the second waist-shaped hole 41, and a screw penetrates through the second waist-shaped hole 41 and is locked in the second threaded hole so that the needle die positioning block 4 can be fixedly installed on the double-plate bottom plate 1. The length direction of the second waist-shaped hole 41 is the same as the distance direction from the needle mold positioning block 4 to the carrier 1, so that the distance between the needle mold positioning block 4 and the carrier 1, namely the distance between the needle mold 5 and the carrier 1, can be adjusted within a certain range, and the FPC is suitable for FPC of liquid crystal modules with more sizes.

This OTP test fixture still including dismantling locate FPC locating piece 8 on the needle mould locating piece 4, FPC locating piece 8 is located one side of needle mould 5 towards support plate 1, be equipped with the recess that is used for supplying FPC100 to pass on the FPC locating piece 8, FPC locating piece 8 gives FPC with the supporting role. When the requirements of different products are met, the FPC positioning block 8 on the pin die positioning block 4 is designed additionally, the whole test fixture is not required to be designed integrally, the repeated utilization rate of the carrier plate part is improved, and the design workload is reduced.

The FPC locating block 8 is provided with a third waist-shaped hole 81, the needle die locating block 4 is provided with a third threaded hole corresponding to the third waist-shaped hole 81, a screw penetrates through the third waist-shaped hole 81 and is locked in the third threaded hole, the FPC locating block 8 is installed and fixed on the needle die locating block 4, and the position of the FPC locating block 8 can be adjusted within a certain range by arranging the third waist-shaped hole 81.

The carrier plate 1 and the FPC locating block 8 are made of antistatic materials.

The inner side of the needle die cover plate 6 is provided with a pressing block 9 at a position corresponding to the FPC, the pressing block 9 presses the FPC of the liquid crystal module on the needle die 5, the FPC is ensured to be in close contact with the needle die 5, and poor contact is prevented. The pressing block 9 is made of an anti-static material.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An OTP test fixture, comprising: the liquid crystal display panel comprises a double-plate bottom plate, a carrier plate arranged at one end of the double-plate bottom plate, a plurality of positioning blocks arranged on the carrier plate, a needle mold positioning block arranged at the other end of the double-plate bottom plate, a needle mold arranged on the needle mold positioning block, and a needle mold cover plate arranged on the needle mold in an overturning manner, wherein the positioning blocks form a containing cavity, the containing cavity positions the main body part of the liquid crystal module, a first waist-shaped hole is formed in the positioning block, a first threaded hole is formed in the carrier plate corresponding to the first waist-shaped hole of each positioning block, and the FPC of the liquid crystal module is connected with the needle mold.

2. The OTP test fixture according to claim 1, wherein a gap is provided between the pin mold positioning block and the carrier.

3. The OTP test fixture according to claim 2, wherein the pin mold positioning block is provided with a second waist-shaped hole, the double-plate bottom plate is provided with a second threaded hole corresponding to the second waist-shaped hole, and the length direction of the second waist-shaped hole is the same as the distance direction from the pin mold positioning block to the carrier plate.

4. The OTP testing jig according to any one of claims 1 to 3, further comprising an FPC locating block detachably disposed on the pin mold locating block, wherein the FPC locating block is disposed on a side of the pin mold facing the carrier, and a groove for passing an FPC therethrough is formed on the FPC locating block.

5. The OTP testing jig according to claim 4, wherein the FPC locating block is provided with a third waist-shaped hole, and the pin mold locating block is provided with a third threaded hole corresponding to the third waist-shaped hole.

6. The OTP test fixture according to claim 4, wherein the carrier and the FPC locating block are made of antistatic materials.

7. The OTP test fixture according to claim 1, wherein a press block is disposed at a position corresponding to the FPC on the inner side of the needle mold cover plate, and the press block is made of an antistatic material.