Maintenance fixture for printed circuit board assembly and method of operating the maintenance fixture

Patent metadata

Field	Value
Publication number	US-2017196130-A1
Application number	US-201615333549-A
Country	US
Kind code	A1
Filing date	Oct 25, 2016
Priority date	Jan 4, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A maintenance fixture for PCB′A and an operating method thereof are disclosed to mitigate the problems that the PCB′A may be scrapped upon removing a conductive adhesive. The maintenance fixture includes a cover plate and a support baseplate which is configured to support a PCB′A and provided with a stopper unit; the cover plate is movably connected to the support baseplate at a first end to be rotatable towards and away from the support baseplate, and is provided with a barrier layer at a first side which is perpendicular to the rotation direction and close to the support baseplate; the barrier layer is configured to be contacted with the PCB′A upon the cover plate being rotated towards the support baseplate to cover an electronic component zone and expose an electrode zone of the PCB′A.

First claim

What is claimed is:

1 . A maintenance fixture for printed circuit board assembly (PCB′A) comprising a support baseplate and a cover plate,
the support baseplate being configured to support a PCB′A to be maintained and being provided with a stopper unit, the stopper unit being configured to limit the PCB′A within a PCB′A stopping area defined by a surface of the support baseplate upon the support baseplate supporting the PCB′A;
the cover plate being movably connected to the support baseplate at a first end of the cover plate so as to be rotatable towards and away from the support baseplate with regard to the first end; the cover plate being provided with a barrier layer at a first side of the cover plate, the first side being perpendicular to a rotation direction of the cover plate and close to the support baseplate; the barrier layer being configured in such a manner that, upon the cover plate being rotated towards the support baseplate, the barrier layer being contacted with the PCB′A supported on the support baseplate to cover an electronic component zone of the PCB′A and also expose an electrode zone of the PCB′A at the same time.

2 . The maintenance fixture according to claim 1 , wherein the first end of the cover plate is articulated with the support baseplate.

3 . The maintenance fixture according to claim 1 , wherein the barrier layer is disposed at a location on the first side of the cover plate away from the first end.

4 . The maintenance fixture according to claim 1 , wherein the stopper unit comprises a stopping groove disposed in the PCB′A stopping area.

5 . The maintenance fixture according to claim 1 , wherein the stopper unit comprises a plurality of stopping blocks disposed at a periphery of the PCB′A stopping area.

6 . The maintenance fixture according to claim 5 , wherein locations of the plurality of stopping blocks at the support baseplate are adjustable.

7 . The maintenance fixture according to claim 1 , wherein the stopper unit comprises a plurality of stopping posts disposed in the PCB′A stopping area, and the stopping posts can be inserted into stopping holes provided in the PCB′A respectively, upon the support baseplate supporting the PCB′A.

8 . The maintenance fixture according to claim 7 , wherein the barrier layer comprises first grooves disposed in one-to-one correspondence with the stopping posts; and
each of the stopping posts is inserted into a corresponding first groove upon the cover plate being rotated towards the support baseplate.

9 . The maintenance fixture according to claim 2 , wherein a surface of the support baseplate comprises two connectors disposed in opposite to each other, the first end of the cover plate is located between the two connectors; and
a second side and a third side of the cover plate that are close to the two connectors respectively are provided with a rotation shaft, and each of the connectors is articulated with the cover plate through the rotation shaft.

10 . The maintenance fixture according to claim 9 , wherein a single rotation shaft is disposed to be passing through both of the second side and the third side so as to be fitted with both of the two connectors, respectively.

11 . The maintenance fixture according to claim 9 , wherein two rotation shafts are disposed at the second side and the third side, respectively, so as to be fitted with the two connectors, respectively.

12 . The maintenance fixture according to claim 9 , wherein a side of each of the two connectors that is close to the cover plate is provided with a slideway, and an end of the rotation shaft connected with the connector is slidable along the slideway.

13 . The maintenance fixture according to claim 9 , wherein a side of each of the second side and the third side of the cover plate that is far away from the corresponding connector is provided with a second groove which is deviated from the corresponding connector upon the cover plate being rotated towards the support baseplate.

14 . The maintenance fixture according to claim 1 , wherein a material of the barrier layer is silica gel.

15 . The maintenance fixture according to claim 1 , wherein the support baseplate further comprises a hollow portion located adjacent to the PCB′A stopping area.

16 . The maintenance fixture according to claim 15 , further comprising a base configured to support the support baseplate in an inclined manner.

17 . The maintenance fixture according to claim 6 , wherein the stopper unit comprises a substrate, a slide slot disposed on the substrate, and a stopping block slidably disposed in the slide slot.

18 . A method of operating a maintenance fixture for printed circuit board assembly (PCB′A), the maintenance fixture comprises a support baseplate and a cover plate, the cover plate being movably connected to the support baseplate at a first end of the cover plate so as to be rotatable towards and away from the support baseplate with regard to the first end, and a first side of the cover plate that is perpendicular to a rotation direction of the cover plate and close to the support baseplate is provided with a barrier layer,
the method comprises:
placing a PCB′A to be maintained onto the support baseplate and limiting the PCB′A within a PCB′A stopping area defined by a surface of the support baseplate; and
rotating the cover plate towards the support baseplate until the barrier layer is contacted with the PCB′A, so as to cover the electronic component zone of the PCB′A and expose the electrode zone of the PCB′A at the same time.

19 . The method according to claim 18 , wherein the support baseplate further comprises a hollow portion disposed adjacent to the PCB′A stopping area,
the method further comprises:
placing the PCB′A in the PCB′A stopping area obliquely with respect to the support baseplate.

20 . The method according to claim 18 , further comprising:
rotating the cover plate in a direction away from the support baseplate with regard to the first end so as to take out the PCB′A.

Assignees

• Boe Technology Group Co Ltd
• Hefei Boe Optoelectronics Tech

Inventors

• Wang Gang
• Yang Jianlei
• Wang Jie
• Li Chunming

Classifications

• H05K3/288 Primary

  Removal of non-metallic coatings, e.g. for repairing · CPC title

• H05K13/0486 Primary

  Replacement and removal of components · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• H05K13/0069

  Holders for printed circuit boards · CPC title

• H05K3/225

  Correcting or repairing of printed circuits (H05K1/0292, H05K3/222, H05K3/288, H05K3/4685 take precedence) · CPC title