Detaching tool

Patent metadata

Field	Value
Publication number	US-10780561-B2
Application number	US-201615534531-A
Country	US
Kind code	B2
Filing date	Jun 17, 2016
Priority date	Mar 2, 2016
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

Embodiments of the present invention provide a detaching tool The detaching tool includes a detaching plate. A detaching part of the detaching plate is adapted to be inserted between a printed circuit board and a backlight source back plate. The detaching tool is configured to separate and detach the PCBA, adhered to the backlight source back plate, from the backlight source back plate.

First claim

What is claimed is:

1. A detaching tool, comprising:
a detaching plate, wherein the detaching plate has a first end, a second end opposite to the first end, and a wedge-shaped detaching part at the first end, and the detaching part is adapted to be inserted between a backlight source back plate and a printed circuit board adhered to the backlight source back plate;
a handle disposed at the second end of the detaching plate facing away from a leading edge of the detaching part and connected to the detaching plate; and
a stop plate disposed in a position of the detaching plate facing away from the leading edge of the detaching part,
wherein a first groove is formed on an upper surface of the detaching plate, the first groove is configured to introduce a solution into a gap between the backlight source back plate and the printed circuit board,
wherein the first groove has a bottom extending from at least a position adjacent to the second end of the detaching plate towards the first end of the detaching plate such that when the detaching part is at least partly inserted between the backlight source back plate and the printed circuit board, the solution flows towards the first end of the detaching plate on the bottom,
wherein the handle is provided with a flow guiding structure which is in communication with the first groove, and
wherein the stop plate is formed with a through hole, and the first groove is in communication with the flow guiding structure through the through hole.

2. The detaching tool of claim 1 , wherein the flow guiding structure is a second groove formed on an upper surface of the handle.

3. The detaching tool of claim 2 , wherein the second groove has a greater opening area than the first groove.

4. The detaching tool of claim 1 , wherein the flow guiding structure is a flow guiding tube disposed in the handle.

5. The detaching tool of claim 1 , wherein at least one of the handle and the detaching plate is made of a resin material.

6. The detaching tool of claim 1 , wherein the wedge-shaped detaching part has an angle of inclination which is in the range from 2° to 3°.

7. The detaching tool of claim 1 , wherein the stop plate is fixed to the position of the detaching plate facing away from the leading edge of the detaching part through a position limit structure, and the position limit structure is configured to adjust the distance from the stop plate to the leading edge of the detaching part.

8. The detaching tool of claim 7 , wherein the position limit structure comprises a first saw tooth structure disposed along a direction from the stop plate to the leading edge of the detaching part and having a plurality of saw teeth, and a second saw tooth structure having at least one saw tooth, the saw tooth of the second saw tooth structure is fitted with some of the saw teeth of the first saw teeth structure to fix the stop plate to different positions on the detaching plate, and
the first saw tooth structure is located at one of the detaching plate and the stop plate while the second saw tooth structure is located at the other of the detaching plate and the stop plate.

9. The detaching tool of claim 1 , wherein the handle has a plate shape.

10. The detaching tool of claim 1 , wherein the handle and the detaching plate are disposed in an integrated structure.

11. A detaching tool, comprising:
a detaching plate, wherein the detaching plate has a wedge-shaped detaching part at one end thereof, and the detaching part is adapted to be inserted between a backlight source back plate and a printed circuit board adhered to the backlight source back plate; and
a stop plate disposed on one of two opposite surfaces, in a thickness direction, of the detaching plate and in a position of the detaching plate facing away from a leading edge of the detaching part so as to limit a depth of insertion of the leading edge of the detaching part between the backlight source back plate and the printed circuit board,
wherein the stop plate is fixed to the position of the detaching plate facing away from the leading edge of the detaching part through a position limit structure, and the position limit structure is configured to adjust the distance from the stop plate to the leading edge of the detaching part,
wherein a guide way is disposed along a direction from the stop plate to the leading edge of the detaching part at the detaching plate, a slider adapted to slide along the guide way in the direction from the stop plate to the leading edge of the detaching part is disposed at the stop plate, the stop plate is mounted to the guide way through the slider, and the slider and the guide way are provided with the position limit structure; and
the position limit structure comprises a groove disposed on a sidewall of the guide way, and an elastic pillar disposed on a sidewall of the slider, and the elastic pillar is located in the groove when the stop plate is in a limited state.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co

Inventors

• Gao Hailong
• Hou Lizhao
• Zhang Ji
• Zhang Wei
• Liu Yanhong
• Lv Lei
• Xin Dandan

Classifications

• B25B27/14 Primary

  for assembling objects other than by press fit or detaching same · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• H05K7/1402

  for securing or extracting printed circuit boards · CPC title

• B25C11/00

  Nail, spike, and staple extractors (incorporated in hammers B25D1/00) · CPC title

• G02F1/13

  based on liquid crystals, e.g. single liquid crystal display cells · CPC title