TWI464468B - Optical fiber coupling connector - Google Patents

Description

Fiber coupled connector

The present invention relates to the field of Universal Serial Bus (USB), and more particularly to a fiber-coupled connector.

USB data transmission technology has been widely used, for example, the USB coupling connector is used to connect the computer to the printer to complete the printing work, or the removable storage disk can be inserted into the computer USB socket through the plug-in USB coupling connector for data transfer. .

USB-coupled connectors of different technical standards have different data transmission rates. For example, current USB 2.0 devices can run at 480 Mbps. As technology advances, fiber-coupled connectors with higher data transfer rates have emerged.

Existing fiber optic coupling connectors typically include a connector housing and a concentrating lens disposed on the connector housing, the connector housing typically including a blind hole for insertion of the fiber. The outer casing generally adopts an injection molding process, but due to the small size of the outer casing, the influence of the injection filling process on the strength and optical performance of the mechanism during injection molding needs to be considered. When the flow resistance of the molten plastic during the filling process is large, the first step is The plastic that is injected into the cavity has gradually solidified and the subsequent plastic is uncured, which affects the performance of the fiber-coupled connector.

In view of the above, it is necessary to provide a light coupling connector that reduces flow resistance during injection molding.

A fiber optic coupling connector includes a housing and a lens disposed on the housing. The outer casing has a blind hole for receiving an optical fiber, and the lens is optically coupled to the optical fiber. The outer casing has a body portion that includes opposing first and second surfaces. The outer casing has a first hole, a second hole, and a third hole at a position corresponding to the blind hole. A central axis of the first hole is perpendicular to a central axis of the blind hole, and the first hole is recessed from the first surface toward the second surface and terminates at the blind hole. The second hole and the third hole are recessed from the second surface toward the first surface, the second hole and the third hole are located on both sides of the blind hole and the central axes are parallel to each other and perpendicular to the The central axis of the blind hole. The aperture of the first aperture is greater than the aperture of the second aperture and the third aperture.

Compared with the prior art, the aperture of the first hole of the fiber-coupled connector of the embodiment of the invention is larger than the aperture of the second hole and the third hole, so that the flow resistance during the injection molding process can be reduced, so that the molten plastic enters faster. The cavities ensure consistent curing time.

10‧‧‧Fiber coupled connectors

11‧‧‧Shell

12‧‧‧ lens

110‧‧‧ Main body

111‧‧‧ first surface

112‧‧‧ second surface

113‧‧‧ third surface

114‧‧‧Fourth surface

115‧‧‧Blind holes

116‧‧‧Connected end

117‧‧‧ first hole

118‧‧‧second hole

119‧‧‧ third hole

120‧‧‧ grip

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a fiber optic coupling connector in accordance with an embodiment of the present invention.

2 is a schematic view of another angle of the fiber-coupled connector of the embodiment of the present invention.

Fig. 3 is a schematic view taken along line III-III of Fig. 2;

The invention will now be described in further detail with reference to the accompanying drawings.

Referring to FIG. 1, FIG. 2 and FIG. 3, the fiber-coupled connector 10 of the embodiment of the present invention includes a housing 11 and a lens 12.

The outer casing 11 has a substantially square body portion 110 and a grip connected to the body portion 110. Holding part 120. The main body portion 110 has a first surface 111 and a second surface 112 disposed opposite to each other, a third surface 113 and a fourth surface 114 connected to both the first surface 111 and the second surface 112, and the third surface 113 and the fourth surface 114 Relative settings.

The body portion 110 has two blind holes 115 arranged in parallel, that is, the blind holes 115 extend from the fourth surface 114 toward the third surface 113 and terminate near the third surface 113, and the blind holes 115 are used to receive the optical fibers.

The grip portion 120 is formed by extending a portion of the fourth surface 114 away from the third surface 113. When the fiber-optic coupling connector 10 is connected to an electronic device such as a notebook computer or a digital camera, the grip portion 120 is held and inserted. can.

The lens 12 is located at a position corresponding to the blind hole 115 of the third surface 113, and the third surface 113 is protrudedly provided with a connector end 116 for correcting the alignment element with the electronic device.

The body portion 110 has a first hole 117, a second hole 118, and a third hole 119 at a position corresponding to the blind hole 115. The first hole 117 is recessed from the first surface 111 toward the second surface 112 and terminates at the blind hole 115. The central axis of the first hole 117 is perpendicular to the central axis of the blind hole 115, which is a square hole; the second hole 118 And the third hole 119 is recessed from the second surface 112 toward the first surface 111, but is not in communication with the first hole 117. The second hole 118 and the third hole 119 are located on both sides of the blind hole 115 and communicate with the blind hole 115. It is a narrow-shaped rectangular hole and the central axes are parallel to each other and the central axis of the vertical blind hole 115. In addition, the area of the recessed area of the first surface 111 is larger than the area of the recessed area of the second surface 112, that is, the aperture of the first hole 117 is larger than the apertures of the second hole 118 and the third hole 119, respectively.

Of course, the number of blind holes 115 can be changed according to actual needs, for example, four, six, eight, and the like. A first hole 117, a second hole 118, and a third hole 119 are provided at positions corresponding to each of the blind holes 115.

Of course, the shapes of the first hole 117, the second hole 118, and the third hole 119 are not limited to the above-described shapes, and each of them may have a regular shape such as a tapered hole or a circular hole.

Since the apertures of the first holes 117 are larger than the apertures of the second holes 118 and the third holes 119, the flow resistance during the injection molding process can be reduced, so that the molten plastic enters the cavity faster, and the curing time is consistent.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Fiber coupled connectors

11‧‧‧Shell

12‧‧‧ lens

110‧‧‧ Main body

120‧‧‧ grip

111‧‧‧ first surface

113‧‧‧ third surface

116‧‧‧Connected end

117‧‧‧ first hole

Claims (6)

A fiber-coupled connector comprising a housing and a lens disposed on the housing, the housing having a blind hole for receiving an optical fiber, the lens being optically coupled to the optical fiber, the improvement being: The outer casing has a main body portion including an opposite first surface and a second surface, the outer casing having a first hole, a second hole and a third hole at a position corresponding to the blind hole, the first hole a central axis perpendicular to a central axis of the blind hole, the first hole being recessed from the first surface toward the second surface and terminating at the blind hole, the second hole and the third hole being The second surface is recessed toward the first surface, the second hole and the third hole are located on two sides of the blind hole and the central axes are parallel to each other and perpendicular to a central axis of the blind hole, the first The pore size of the pores is greater than the pore sizes of the second and third pores. The fiber-coupled connector of claim 1, wherein the body portion further includes a third surface and a fourth surface connected to the first surface and the second surface, the third surface and The four surfaces are oppositely disposed, the blind holes extending from the fourth surface toward the third surface. The fiber-coupled connector of claim 1, wherein the first hole is square, circular or tapered. The fiber-coupled connector of claim 1, wherein the second and third holes are square, circular or tapered. The fiber-coupled connector of claim 2, wherein the third surface is protruded with a plug end. The fiber-coupled connector according to any one of claims 1 to 5, wherein the fourth surface extends away from the third surface to form a grip.