CN217484629U

CN217484629U - Adapter plate of liquid crystal screen test fixture

Info

Publication number: CN217484629U
Application number: CN202221362485.5U
Authority: CN
Inventors: 朱惠明
Original assignee: Shenzhen Chenxinda Electronics Co ltd
Current assignee: Shenzhen Chenxinda Electronics Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-23
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a screen test fixture technical field especially relates to a keysets of LCD screen test fixture, including the circuit board, set up the pin header on one side of the upper surface of circuit board and set up the connector on the other side of the upper surface of circuit board, set up the protection subassembly on the circuit board outside the pin header, the circuit board side sets up the auxiliary fixing subassembly; the protection component includes the protection casing, the protection casing sets up on the circuit board in the row needle outside to the side, protection casing bottom bilateral symmetry sets up the joint pole, joint pole one end joint is at the joint inslot, joint groove symmetry sets up in circuit board upper surface both sides, the utility model discloses can protect row's needle, arrange the needle and buckle when having avoided not using, the condition that influences the next use takes place, can assist the centre gripping fixed to circuit board and LCD screen simultaneously, has improved connection stability.

Description

Adapter plate of liquid crystal screen test fixture

Technical Field

The utility model relates to a screen test fixture technical field especially relates to a LCD screen test fixture's keysets.

Background

In the liquid crystal display, a Flexible Printed Circuit (FPC) is bonded to a Liquid Crystal Display (LCD) panel to electrically connect components. Before leaving the factory, the liquid crystal display screen needs to be electrically tested, so that defective products are prevented from flowing into the next process.

The utility model discloses a LCD screen test fixture keysets as utility model discloses that bulletin number is CN205210459U, including arranging the needle, circuit board and connector, the circuit board surface is provided with printed circuit, arranges the needle and fixes the one side at the circuit board, the opposite side at the circuit board is fixed to the connector, the connector switches on through printed circuit with arranging the needle, its row needle can't protect it when not using, and easily cause the collision to buckle, influence later stage connection stability, when it is connected with the LCD screen simultaneously, do not have supplementary fixed knot structure, firm in connection nature is not good, the influence detects the accuracy.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems existing in the background technology, the utility model provides an adapter plate of a liquid crystal screen test fixture, which comprises a circuit board, a pin header arranged on one side of the upper surface of the circuit board and a connector arranged on the other side of the upper surface of the circuit board, wherein a protective component is arranged on the circuit board outside the pin header, and an auxiliary fixing component is arranged on the side surface of the circuit board;

the protection component comprises a protection cover, the protection cover is arranged on the upper side face of the circuit board outside the pin header, clamping rods are symmetrically arranged on two sides of the bottom of the protection cover, one end of each clamping rod is clamped in a clamping groove, and the clamping grooves are symmetrically arranged on two sides of the upper surface of the circuit board.

Preferably, the inner wall bilateral symmetry in joint groove sets up first recess and second recess, set up first bayonet lock in the first recess, set up second bayonet lock in the second recess.

Preferably, a first spring is arranged on the surface of one side in the first groove, one end of the first spring is connected with the first bayonet lock, a second spring is arranged on the surface of one side in the second groove, and one end of the second spring is connected with the second bayonet lock.

Preferably, the cross sections of the first clamping pin and the second clamping pin are both arc-shaped, and the specifications of the first clamping pin and the second clamping pin are the same.

Preferably, the auxiliary fixing assembly comprises a positioning buckle, the surfaces of the two sides of the positioning buckle are symmetrically provided with a first threaded hole and a second threaded hole, a first positioning bolt is rotationally arranged in the first threaded hole, and a second positioning bolt is rotationally arranged in the second threaded hole.

Preferably, a first elastic cushion pad is arranged at one end of the first positioning bolt, and a second elastic cushion pad is arranged at one end of the second positioning bolt.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:

1. the utility model discloses a setting in protection casing, joint pole and joint groove can protect row's needle, and the condition of having avoided row's needle collision to buckle takes place, and the protection casing dismouting is convenient simultaneously, and the result of use is good.

2. The utility model discloses a setting of detaining, first positioning bolt and second positioning bolt in location can assist the centre gripping with circuit board and liquid crystal display fixed, has improved the stability that circuit board and liquid crystal display are connected, has improved test accuracy nature.

Drawings

Fig. 1 is a schematic structural diagram of an adapter plate of a liquid crystal display test fixture according to a first embodiment;

FIG. 2 is a schematic cross-sectional view of a protection component of an interposer of a LCD test fixture;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic structural view of an auxiliary fixing component in an adapter plate of the LCD panel test fixture;

fig. 5 is a schematic cross-sectional front view illustrating an auxiliary fixing component of an interposer of a liquid crystal display test fixture according to a fourth embodiment.

Reference numerals are as follows: 1. a guard assembly; 2. arranging needles; 3. an auxiliary fixing component; 4. a circuit board; 5. a connector; 11. a protective cover; 12. a clamping groove; 13. a clamping and connecting rod; 14. a first groove; 15. a first spring; 16. a first bayonet lock; 17. a second bayonet lock; 18. a second spring; 19. a second groove; 31. positioning buckles; 32. a first positioning bolt; 33. a first threaded hole; 34. a second threaded hole; 35. a second positioning bolt; 36. a first resilient cushion; 37. a second resilient cushion.

Detailed Description

Example one

As shown in fig. 1-3, the utility model provides an adapter plate of a liquid crystal display testing jig, which comprises a circuit board 4, a pin header 2 arranged on one side of the upper surface of the circuit board 4, and a connector 5 arranged on the other side of the upper surface of the circuit board 4, wherein a protection component 1 is arranged on the circuit board 4 outside the pin header 2, and an auxiliary fixing component 3 is arranged on the side surface of the circuit board 4;

the protection component 1 comprises a protection cover 11, the protection cover 11 is arranged on the upper side face of the circuit board 4 outside the pin header 2, clamping rods 13 are symmetrically arranged on two sides of the bottom of the protection cover 11, one end of each clamping rod 13 is clamped in each clamping groove 12, and the clamping grooves 12 are symmetrically arranged on two sides of the upper surface of the circuit board 4.

In this embodiment, when the pin header 2 is not needed, the clamping rod 13 on the protection cover 11 is aligned with the clamping groove 12, and the clamping rod 13 is clamped into the clamping groove 12, so that the protection cover 11 is fixed on the circuit board 4, and the protection cover 11 protects the pin header 2.

Example two

As shown in fig. 3, the utility model provides a liquid crystal display test fixture's keysets compares in embodiment one, this embodiment still includes first recess 14 and second recess 19, the inner wall bilateral symmetry of joint groove 12 sets up first recess 14 and second recess 19, set up first bayonet lock 16 in the first recess 14, set up second bayonet lock 17 in the second recess 19, a side surface sets up first spring 15 in the first recess 14, first spring 15 one end is connected with first bayonet lock 16, a side surface sets up second spring 18 in the

second recess

19, 18 one end of second spring is connected with second bayonet lock 17.

In this embodiment, after the clamping bar 13 is clamped in the clamping groove 12, the first clamping pin 16 compresses the first spring 15, the second clamping pin 17 compresses the second spring 18, and the first spring 15 and the second spring 18 make the first clamping pin 16 and the second clamping pin 17 attached to the clamping bar 13 under the action of elastic force, and fix the clamping bar 13 in the clamping groove 12, thereby improving the stability of the protective cover 11 during installation.

The cross sections of the first clamping pin 16 and the second clamping pin 17 are circular arc-shaped, and the first clamping pin 16 and the second clamping pin 17 have the same specification, so that the clamping rod 13 can push the first clamping pin 16 and the second clamping pin 17 to move simultaneously.

EXAMPLE III

As shown in fig. 4, the utility model provides a liquid crystal screen test fixture's keysets compares in embodiment one or embodiment two, and this embodiment still includes supplementary fixed subassembly 3, and supplementary fixed subassembly 3 detains 31 including the location, and 31 bilateral surface symmetry sets up first screw hole 33 and second screw hole 34 are detained in the location, and first screw hole 33 internal rotation sets up first positioning bolt 32, and second screw hole 34 internal rotation sets up second positioning bolt 35.

In this embodiment, after connector 5 and row needle 2 and liquid crystal display are connected, detain 31 with the location and place circuit board 4 and liquid crystal display corner, then rotate first positioning bolt 32 and second positioning bolt 35, first positioning bolt 32 and the laminating of liquid crystal display, second positioning bolt 35 and the laminating of circuit board 4 will assist the centre gripping fixed to circuit board 4 and liquid crystal display.

Example four

As shown in fig. 5, the utility model provides a keysets of LCD screen test fixture compares in embodiment one or embodiment two or embodiment three, and this embodiment still includes first resilient cushion 36 and second resilient cushion 37, and first positioning bolt 32 one end sets up first resilient cushion 36, and second positioning bolt 35 one end sets up second resilient cushion 37.

In this embodiment, the buffering protection performance of the first positioning bolt 32 and the second positioning bolt 35 can be improved, and the situation that the liquid crystal display screen or the circuit board 4 is damaged by the clamping of the first positioning bolt and the second positioning bolt is avoided.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims

1. An adapter plate of a liquid crystal display test fixture comprises a circuit board (4), a pin header (2) arranged on one side of the upper surface of the circuit board (4) and a connector (5) arranged on the other side of the upper surface of the circuit board (4), and is characterized in that a protection component (1) is arranged on the circuit board (4) outside the pin header (2), and an auxiliary fixing component (3) is arranged on the side surface of the circuit board (4);

protection component (1) includes protection casing (11), protection casing (11) set up on circuit board (4) in the row needle (2) outside the side, protection casing (11) bottom bilateral symmetry sets up joint pole (13), joint pole (13) one end joint is in joint groove (12), joint groove (12) symmetry sets up in circuit board (4) upper surface both sides.

2. The adapter plate of the liquid crystal display testing jig according to claim 1, wherein a first groove (14) and a second groove (19) are symmetrically formed in two sides of the inner wall of the clamping groove (12), a first clamping pin (16) is arranged in the first groove (14), and a second clamping pin (17) is arranged in the second groove (19).

3. The adapter plate of the liquid crystal display testing jig according to claim 2, wherein a first spring (15) is arranged on one side surface in the first groove (14), one end of the first spring (15) is connected with a first clamping pin (16), a second spring (18) is arranged on one side surface in the second groove (19), and one end of the second spring (18) is connected with a second clamping pin (17).

4. The adapter plate of the LCD screen test fixture according to claim 3, wherein the cross sections of the first clamping pin (16) and the second clamping pin (17) are circular arc-shaped, and the first clamping pin (16) and the second clamping pin (17) have the same specification.

5. The adapter plate of the liquid crystal display test fixture according to claim 1, wherein the auxiliary fixing component (3) comprises a positioning fastener (31), a first threaded hole (33) and a second threaded hole (34) are symmetrically formed in the two side surfaces of the positioning fastener (31), a first positioning bolt (32) is rotatably arranged in the first threaded hole (33), and a second positioning bolt (35) is rotatably arranged in the second threaded hole (34).

6. The adapter plate of the LCD screen testing jig according to claim 5, wherein one end of the first positioning bolt (32) is provided with a first elastic cushion pad (36), and one end of the second positioning bolt (35) is provided with a second elastic cushion pad (37).