Stretch releasing adhesive assembly, housing assembly and mobile terminal

Patent metadata

Field	Value
Publication number	US-10870258-B2
Application number	US-201815988410-A
Country	US
Kind code	B2
Filing date	May 24, 2018
Priority date	Aug 24, 2017
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

The present disclosure provides a stretch releasing adhesive assembly, a housing assembly, and a mobile terminal. The stretch releasing adhesive assembly includes: a stretch releasing adhesive layer, having a pull portion at an end of the stretch releasing adhesive layer; and a first pull layer, the first pull layer and the pull portion being superposed and connected, the first pull layer being provided with at least one tear line in a position corresponding to the pull portion.

First claim

What is claimed is:

1. A stretch releasing adhesive assembly, comprising:
a stretch releasing adhesive layer, having a pull portion at an end of the stretch releasing adhesive layer;
a first pull layer, the first pull layer and the pull portion being superposed and connected, the first pull layer being provided with at least one tear line in a position corresponding to the pull portion, the first pull layer being a distinct layer from the stretch releasing adhesive layer, and disposed along a length direction of the stretch releasing adhesive layer, the first pull layer comprising:
a first segment, the first segment and the pull portion being superposed and connected, the tear line being provided on the first segment; and
a second segment having an end connected with an end of the first segment, the second segment extending past the pull portion; and
a double-sided adhesive provided between the pull portion and the first pull layer.

2. The stretch releasing adhesive assembly according to claim 1 , wherein the stretch releasing adhesive layer is in a strip shape.

3. The stretch releasing adhesive assembly according to claim 1 , wherein the tear line is an incision formed by partially incising the first pull layer along a length direction of the tear line.

4. The stretch releasing adhesive assembly according to claim 1 , wherein a plurality of tear lines are provided and arranged in parallel.

5. The stretch releasing adhesive assembly according to claim 1 , wherein the double-sided adhesive between the first pull layer and the pull portion is spaced apart from the tear line.

6. The stretch releasing adhesive assembly according to claim 1 , wherein the tear line forms an included angle α relative to a length direction of the stretch releasing adhesive layer, and a satisfies 0<α≤90°.

7. The stretch releasing adhesive assembly according to claim 6 , wherein a satisfies 45°<α≤90°.

8. The stretch releasing adhesive assembly according to claim 7 , wherein a satisfies α=90°.

9. The stretch releasing adhesive assembly according to claim 1 , further comprising a covering film, the covering film and the stretch releasing layer being superposed, and the covering film being located at a side of the stretch releasing adhesive layer away from the first pull layer.

10. The stretch releasing adhesive assembly according to claim 9 , wherein a side of the covering film away from the stretch releasing adhesive layer is provided with a double-sided adhesive.

11. The stretch releasing adhesive assembly according to claim 1 , further comprising a second pull layer, the second pull layer and the pull portion being superposed, and the second pull layer being located at a side of the pull portion away from the first pull layer.

12. The stretch releasing adhesive assembly according to claim 11 , wherein the second pull layer is provided with the tear line arranged opposite to the tear line on the first pull layer.

13. The stretch releasing adhesive assembly according to claim 11 , wherein a double-sided adhesive is provided between the second pull layer and the pull portion.

14. The stretch releasing adhesive assembly according to claim 11 , wherein along a length direction of the stretch releasing adhesive layer, the second pull layer is spaced apart from the at least one tear line.

15. A housing assembly, comprising:
a housing;
a battery provided on the housing;
a stretch releasing adhesive assembly comprising:
a stretch releasing adhesive layer, having a pull portion at an end of the stretch releasing adhesive layer;
a first pull layer, the first pull layer and the pull portion being superposed and connected, the first pull layer being provided with at least one tear line in a position corresponding to the pull portion, the first pull layer being a distinct layer from the stretch releasing adhesive layer, and disposed along a length direction of the stretch releasing adhesive layer, the first pull layer comprising:
a first segment, the first segment and the pull portion being superposed and connected, the tear line being provided on the first segment; and
a second segment having an end connected with an end of the first segment, the second segment extending past the pull portion; and
a double-sided adhesive provided between the pull portion and the first pull layer.

16. The housing assembly according to claim 15 , wherein a side of the stretch releasing adhesive layer facing the first pull layer is connected with the housing.

17. The housing assembly according to claim 15 , wherein a side of the stretch releasing adhesive layer facing the first pull layer is connected with the battery.

18. The housing assembly according to claim 15 , further comprising a second pull layer, the second pull layer and the pull portion being superposed, and the second pull layer being located at a side of the pull portion away from the first pull layer.

19. The housing assembly according to claim 15 , wherein the second pull layer is provided with the tear line arranged opposite to the tear line on the first pull layer.

20. A mobile terminal, comprising a housing assembly, the housing assembly comprising:
a housing;
a battery provided on the housing;
a stretch releasing adhesive assembly comprising:
a stretch releasing adhesive layer, having a pull portion at an end of the stretch releasing adhesive layer;
a first pull layer, the first pull layer and the pull portion being superposed and connected, the first pull layer being provided with at least one tear line in a position corresponding to the pull portion, the first pull layer being a distinct layer from the stretch releasing adhesive layer, and disposed along a length direction of the stretch releasing adhesive layer, the first pull layer comprising:
a first segment, the first segment and the pull portion being superposed and connected, the tear line being provided on the first segment; and
a second segment having an end connected with an end of the first segment, the second segment extending past the pull portion; and
a double-sided adhesive provided between the pull portion and the first pull layer.

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Zeng Yuanqing

Classifications

• C09J2301/18

  characterized by perforations in the adhesive tape · CPC title

• C09J2203/318

  for the production of liquid crystal displays · CPC title

• C09J7/10 Primary

  without carriers · CPC title

• C09J2203/33

  for batteries or fuel cells · CPC title

• C09J201/02

  characterised by the presence of specified groups {, e.g. terminal or pendant functional groups} · CPC title