Plastic barrel, camera module, and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsChun-Hua TSAI, Ming-Ta CHOU
Life of this patent
Estimating the term…
Abstract
A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.
Claims22
A plastic barrel, comprising:
- an object-end portion, comprising:
- an object-end hole;
- a holder portion, comprising:
- a bottom surface;
- a bottom hole;
- and
- an outer bottom side, wherein the bottom surface surrounds the bottom hole and connected with the outer bottom side, and the holder portion further comprises at least three cut traces obtained by partially removing at least three gate portions;
- and
- a tube portion, connecting the object-end portion with the holder portion and comprising a plurality of inner annular surfaces;
- wherein an area of the bottom surface is As, a diameter of the object-end hole is ψd, and the following condition is satisfied:
- 0.8<As/(π×(ψd)2)<3.6.
A plastic barrel, comprising:
- an object-end portion, comprising:
- an object-end hole;
- a holder portion, comprising:
- a bottom surface;
- a bottom hole;
- and
- an outer bottom side, wherein the bottom surface surrounds the bottom hole and connected with the outer bottom side, and the holder portion further comprises at least three cut traces obtained by partially removing at least three gate portions;
- and
- a tube portion, connecting the object-end portion with the holder portion and comprising a plurality of inner annular surfaces;
- wherein the outer bottom side comprises at least four side surfaces, each of the side surfaces comprises two ends, and one of the ends of one of the side surfaces is connected with one of the ends of another one of the side surfaces, wherein the one of the side surfaces is adjacent to the another one of the side surfaces;
- wherein the cut traces are respectively located on the side surfaces, and each of the cut traces is closer to one of the ends of the side surfaces;
- wherein a diameter of the bottom hole is ψo, a height of the plastic barrel parallel to a central axis is H, and the following condition is satisfied:
- 1.05<ψo/H<2.5.
Dependencies are inferred from the claim text.