Fiber Optic Connector Coupling Components

Abstract

To provide a coupling component for an optical fiber connector which has improved structural strength and is less likely to be damaged between a coupling body and a base. [Solution] A coupling body 1 has a positioning hole 12 on a side surface of a plug side 1a, and a docking port on a side surface of an assembly side 1b. The positioning hole and the docking port communicate with the holes, the coupling body has a retraction stopper 14 extending outward on a side surface between the plug side and the assembly side, and includes a base portion 15 located on the assembly side, the coupling body and the base portion are integral, the core tube component 2 includes a core tube 21 and an elastic member 22 inserted into the hole from the positioning hole, and the sleeve 3 is located outside the base portion.

Description

[Technical field]

[0001] The present invention relates to a coupling component, and more particularly to a coupling component for an optical fiber splicer. [Background technology]

[0002] Optical fiber is a tool for transmitting light, and it is necessary to connect optical fiber to various electronic devices so that the transmitted information can be used by the electronic devices. Therefore, to achieve the purpose of connection, it is necessary to use a connector as an intermediary between the optical fiber and the electronic devices. The coupling parts of a typical fiber optic connector include a hollow body, a core tube component, a spring, a base, a sleeve, etc. When the hexagonal stopper and spring of the core tube component are installed in the hexagonal hole inside the hollow body, the base can be fixed to be installed in the side opening of the hollow body, and the core tube component and the spring can be restricted. Summary of the Invention [Problem to be solved by the invention]

[0003] However, when the sleeve is attached to the outside of the base, the hexagonal stopper and the hexagonal through hole are less likely to be restrained from each other, making it easier for the core tube component to rotate in the axial direction. [Means for solving the problem]

[0004] In view of the above problems, the present invention has the following configuration. A coupling component for an optical fiber splice, comprising a coupling body, a core tube component, and a sleeve, The coupling body has two ends each including a plug side and an assembly side, and the coupling body has a hole passing through from the plug side to the assembly side, The coupling body has a positioning opening on a side surface of the plug side, and the coupling body has a docking opening on a side surface of the assembly side, the positioning opening and the docking opening communicate with the hole, and the coupling body has a retraction stopper extending outward on a side surface between the plug side and the assembly side, the coupling body includes a base portion located on the assembly side, the coupling body and the base portion being integral with each other, the core tube component includes a core tube and an elastic member that are inserted into the hole through the positioning hole; The sleeve is external to the base.

[0005] In addition, the coupling body has a hollow rectangular structure, and the base portion has a hollow cylindrical structure, The docking port is provided in the base portion, and the hole diameter of the positioning hole on the plug side is larger than the hole diameter of the docking port on the assembly side.

[0006] Also, the core tube includes a connecting pin, a stopper, and a connecting tube; The connection pin and the connection tube are located on both sides of the stopper, and the connection pin is located at one end of the coupling body in the longitudinal direction and corresponds to the positioning hole; The connection tube is located at the other longitudinal end of the coupling body and corresponds to the docking port, and the elastic member is provided outside the connection tube.

[0007] In addition, the positioning hole is rectangular, the hole is rectangular and has four abutment surfaces, and the stopper is rectangular and has four positioning surfaces, each abutment surface corresponding to each of the positioning surfaces.

[0008] The elastic member contacts the stopper at one end of the coupling body in the longitudinal direction, The coupling body includes a barrier located within the bore, and the resilient member contacts the barrier at the other longitudinal end of the coupling body.

[0009] Also, the coupling body includes a docking block located within the hole, the core tube includes a snap block located on the outer annular surface of the connecting tube, and the docking block contacts the snap block.

[0010] In addition, the snap block has two flat surfaces on opposite sides of a horizontal line, and the snap block has two arcuate surfaces on opposite sides of a vertical line.

[0011] The base portion includes hook portions on both sides of a vertical line, the hook portions protruding in directions opposite to each other, The sleeve has a hole and an annular groove located on an inner wall of the hole, and the hook portion is located in the annular groove.

[0012] The housing further includes a cover, the cover being positioned in the positioning opening.

[0013] In addition, both ends of the retraction stop portion include a fixed end and a free end, the fixed end being located on the plug side and at one end of the side surface of the coupling body, and the free end being located on the assembly side and at the other end of the side surface of the coupling body, and extending obliquely from the fixed end to the free end in a direction away from the side surface of the coupling body. Effect of the Invention

[0014] As described above, in the embodiment of the present invention, the coupling body and the base are integrated to improve the structural strength and make it difficult to break between the coupling body and the base. In addition, the core tube component is mounted inside the hole through the positioning hole of the coupling body, so that the core tube component is firmly positioned inside the hole. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of a coupling component illustrating an embodiment of the present invention; FIG. [Diagram 2] 1 is an exploded front perspective view of a coupling component illustrating an embodiment of the present invention. FIG. [Diagram 3] FIG. 2 is an exploded perspective view of a coupling component according to an embodiment of the present invention, as viewed from the rear. [Figure 4] 1 is a perspective sectional view of a coupling body according to an embodiment of the present invention; [Diagram 5] 1 is a perspective view of a core tube according to an embodiment of the present invention; [Figure 6] 1 is a side cross-sectional view of a coupling component illustrating an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The detailed features and advantages of the present invention will be described in detail in the following embodiments, which are sufficient for those skilled in the art to understand and implement the technical contents of the present invention. It is believed that those skilled in the art can easily understand the objectives and advantages of the present invention based on the contents shown in this specification as well as the claims and drawings. Description will be given with reference to Figures 1 and 2. Figure 1 is a perspective view of a coupling component 100 showing an embodiment of the present invention. Figure 2 is an exploded perspective view of the coupling component 100 showing an embodiment of the present invention, as seen from the front. In this embodiment, the coupling component 100 is applied to an optical fiber connector, which is suitable for equipment used in high and low temperature environments related to telecommunications, indoor wiring, industrial, military, aviation, aerospace, or medical industries, and can also be used in data center, 5G, or cloud computing equipment, and the optical fiber connector is a high-density optical fiber connection device that realizes high-speed signal transmission. The optical fiber connector has an optical fiber socket and is a product for accommodating the core wire of an optical fiber line (for transmission and reception). The coupling component 100 includes a coupling body 1, a core tube component 2, and a sleeve 3.

[0017] Description will be given with reference to Figures 2 and 3. Figure 3 is an exploded perspective view of a coupling component showing an embodiment of the present invention as seen from the rear. Both ends of the coupling body 1 each include a plug side 1a and an assembly side 1b. As shown in Figure 2, the plug side 1a is located on the left side of the coupling body 1 along a third axis Z direction described below, and the assembly side 1b is located on the right side of the coupling body 1 along the third axis Z direction as shown in Figure 2. The coupling body 1 has a hole 10 penetrating from the plug side 1a to the assembly side 1b, the coupling body 1 has a positioning opening 12 on the plug side 1a, and the coupling body 1 has a docking opening 13 on the assembly side 1b, the positioning opening 12 and the docking opening 13 are connected to the hole 10, and a retraction stopper 14 is provided on the side between the plug side 1a and the assembly side 1b of the coupling body 1 (the upper surface along the second axis Y direction of the coupling body 1 shown in FIG. 2, which will be described later) toward the outside (i.e., in FIG. 2, it moves away toward the upper side in the second axis Y direction so as to move away from the coupling body 1 as it extends toward the right in the third axis Z direction). Here, the coupling body 1 includes a base portion 15 located on the assembly side 1b, and the coupling body 1 and the base 15 are integrated.

[0018] In order to more clearly explain the present invention, in the perspective view shown in the present invention, the first axis X is the X-axis of a three-dimensional coordinate system, the second axis Y is the Y-axis of the three-dimensional coordinate system and perpendicular to the first axis X direction, and the third axis Z is the Z-axis of the three-dimensional coordinate system and perpendicular to both the first axis X direction and the second axis Y direction.

[0019] The coupling body 1 is a hollow rectangular parallelepiped structure 11, which extends along a third axis Z and has four opposing sides forming a rectangle, as shown in FIG. The coupling body 1 extends along the first axis X direction and has two opposing side surfaces, the two side surfaces in the first axis X direction being connected to two of four side surfaces extending parallel to the third axis Z direction, the two side surfaces in the first axis X direction being short side surfaces, and the four side surfaces extending parallel to the third axis Z direction being long side surfaces. The positioning opening 12 is located on the left side in the longitudinal direction, which is the direction of the third axis Z in Fig. 2, and the docking opening 13 is formed on the left side of the base portion 15 in Fig. 3 (that is, on the right side in Fig. 2, but not shown due to the angle), and the base portion 15 of the coupling body 1 is a hollow cylindrical structure 151. The base portion 15 protrudes to the left side in the longitudinal direction, which is the direction of the third axis Z in Fig. 3 (that is, to the right side when viewed from the angle of Fig. 2).

[0020] In this embodiment, the two ends of the retraction stopper 14 respectively include a fixed end 141 and a free end 142. The fixed end 141 is located at one end of the side surface of the coupling body 1 (the left side of the upper side surface of the coupling body 1 as shown in FIG. 2). The free end 142 is located at the other end of the upper side surface of the coupling body 1 (the right side of the coupling body 1 shown in Figure 2), and the free end 142 extends from the fixed end 141 at an incline so as to move away from the upper side surface in the second axis Y direction as it extends to the right in the third axis Z direction, i.e., it extends in a direction gradually moving away from the upper side surface of the coupling body 1. A retraction stopper 14 extending outward is provided on the side surface of the coupling body 1. Here, the outer side refers to the upper side in the second axis Y direction perpendicular to the longitudinal direction of the coupling body 1. Hereinafter, the upper side in the second axis Y direction is also referred to as the "+second axis Y direction." The retraction stop portion 14 moves away from the coupling body 1 in the +second axis Y direction as it moves from the left side of the coupling body 1 shown in FIG. 1 toward the other end of the coupling body 1, which is the right side, and as a result, the included angle between the extension direction of the retraction stop portion 14 and the top surface (upper side surface) of the coupling body 1 is approximately 30 degrees.

[0021] When the core tube component 2 is attached to the coupling body 1, the core tube component 2 is attached into the hole 10 through the positioning hole 12. The elastic member 22 is housed in the hole 10 of the coupling body 1. Next, the sleeve 3 is attached to the outside of the base 15 from the right side in the third axis Z direction to complete the semi-finished product (see FIG. 6 described later). Furthermore, a cover 4 can be attached to the coupling body 1 via the core tube component 2 from the leftmost side in the third axis Z direction as shown in FIG. 2, and the cover 4 is fixed to the positioning hole 12 and used for dust prevention and protection of the core tube component 2.

[0022] In this embodiment, the core tube 21 includes a connection pin 211 extending along the third axis Z direction, a substantially square stopper 212 as described below, and a connection tube 213 extending along the third axis Z direction. As shown in Fig. 2, the connection pin 211 and the connection tube 213 are respectively disposed on the left and right sides of the stopper 212 along the third axis Z direction. When the core tube 21 and the elastic member 22 are inserted into the hole 10 of the coupling body 1, the connection pin 211 is located at one end in the longitudinal direction of the coupling body 1, i.e., at the left end of the coupling body 1, and corresponds to the positioning opening 12. The connection tube 213 is located at the other end in the longitudinal direction of the coupling body 1 (i.e., the right side), and corresponds to the docking opening 13. Furthermore, the elastic member 22 surrounds the outside of the connection tube 213 (see FIG. 6 described later). In this embodiment, the contact pin 211 is used to cover the optical fiber core, and the optical fiber core is aligned with the core hole of the contact pin 211 .

[0023] The following description will be made with reference to Figures 2 to 4. Figure 4 is a perspective cross-sectional view of a coupling body showing an embodiment of the present invention. In this embodiment, the hole diameters of the positioning opening 12 and the docking opening 13 of the coupling body 1 are different. That is, the opening diameter of the positioning opening 12 on the plug side 1a is wider than the opening diameter of the docking opening 13 on the assembly side 1b. In this embodiment, the positioning opening 12 of the coupling body 1 is substantially square when viewed from the left side in the direction of the third axis Z in Fig. 2. Furthermore, it can be seen that the hole 10 of the coupling body 1 is also substantially square. The hole 10 extends along the third axis Z direction and has four abutment surfaces 101 that form a hollow rectangular parallelepiped as a whole. In addition, the portions connecting the four abutment surfaces 101 are chamfered to form rounded corners, and the above-mentioned four abutment surfaces 101 are formed while changing direction by 90 degrees each. The docking port 13 of the coupling body 1 is circular when viewed from the left side of FIG. 3 in the third axis Z direction.

[0024] In this embodiment, the stopper 212 is substantially square when viewed from the third axis Z direction in Fig. 2, and has four positioning surfaces 2121 on the outside of the stopper 212. Each of the four positioning surfaces 2121 has two opposing positioning surfaces 2121 arranged along the first axis X direction and two opposing positioning surfaces 2121 arranged along the second axis Y direction, and there are chamfered rounded corners between the four positioning surfaces 2121.

[0025] When the core tube 21 is attached to the hole 10 of the coupling body 1, the positioning surfaces 2121 of the stopper 212 of the core tube 21 correspond to the abutment surfaces 101 on the inner wall of the hole 10, and the four abutment surfaces 101 and the four positioning surfaces 2121 abut against each other to regulate the position. The core tube 21 is restricted within the hole 10, and the freedom of rotation of the core tube 21 in the axial direction is restricted.

[0026] In this embodiment, when the elastic member 22 is installed in the hole 10 of the coupling body 1, the elastic member 22 contacts the stopper 212 at one end (i.e., the left side) corresponding to the longitudinal direction of the coupling body 1, and the coupling body 1 has a barrier 16 located within the hole 10, and the elastic member 22 contacts the barrier 16 at the other end (i.e., the right side) corresponding to the longitudinal direction of the coupling body 1 (see Figure 6 described later).

[0027] When the core tube 21 is used for docking, the connection pin 211 of the core tube 21 moves to the right in the direction of the third axis Z, as shown in Fig. 6, which will be described later. Also, the stopper 212 presses one end (left side) of the elastic member 22, causing the elastic member 22 to enter a compressed state, and the repulsive force of the elastic member 22 causes the connection pin 211 of the core tube 21 to move to the left in the direction of the third axis Z in Fig. 6.

[0028] Description will be given with reference to Figures 4 to 6. Figure 5 is a perspective view of a core tube 21 showing an embodiment of the present invention. Figure 6 is a side cross-sectional view of a coupling component 100 showing an embodiment of the present invention. As a result, the connection pin 211 of the core tube 21 is prevented from jumping out of the positioning hole 12. In this embodiment, as shown in Fig. 4, the coupling body 1 has a docking block 17 formed on the right side inside the hole 10 at the boundary with the cylindrical structure 151, and the docking block 17 is a substantially annular block that protrudes inward when viewed from the third axis Z direction. The core tube 21 includes a snap block 217 located on the outer edge of the connecting tube 213. When viewed from Fig. 5 along the third axis Z, the snap block 217 is a generally circular outwardly protruding block. The docking block 17 in Fig. 4 and the snap block 217 in Fig. 5 are hook structures extending in opposite directions. The docking block 17 and the snap block 217 have opposing inclined surfaces and opposing straight surfaces. When the core tube 21 is attached to the hole 10 of the coupling body 1, the snap block 217 on the outer edge of the connection tube 213 engages with the docking block 17. That is, the straight surface of the snap block 217 engages with the straight surface of the docking block 17, and the snap block 217 is restricted by the docking block 17. Since the freedom of movement of the core tube 21 toward the positioning opening 12 is restricted, as shown in FIG 6, the connection pin 211 of the core tube 21 can be prevented from protruding from the positioning opening 12 to the left in the direction of the third axis Z.

[0029] 2 and 5. In this embodiment, the snap block 217 has flat surfaces 2171 extending in the second axis Y direction on two opposing sides of a horizontal line 217a along the first axis X direction, and the snap block 217 has arc surfaces 2172 on opposite ends of a vertical line 217b along the second axis Y direction. When the core tube 21 is installed in the hole 10 of the coupling body 1, the arc surface 2172 of the snap block 217 facilitates contact with the docking block 17 in the coupling body 1. As shown in Fig. 6, the snap block 217 can be passed from one side of the docking block 17 (i.e., the left side in Fig. 6) to the other side of the docking block 17 (i.e., the right side in Fig. 6) along the third axis Z direction.

[0030] In this embodiment, the base portion 15 of the coupling body 1 includes a pair of hook portions 152 arranged at a distance from each other on both ends of a vertical line 15a along the second axis Y direction, as shown in Fig. 3. The hook portions 152 protrude outward in opposite directions, and protrude upward and downward from the center point of the base portion 15 as viewed from the third axis Z direction on the vertical line 15a in the second axis Y direction. That is, the hook portions 152 protrude outward on the vertical line 15a along the +second axis Y direction and the -second axis Y direction opposite thereto. In this embodiment, the sleeve 3 has a bore 31 and an annular groove 32 located on the inner wall of the bore 31 . As shown in FIG. 2, when the sleeve 3 is attached to the outside of the base 15 along the third axis Z direction, each hook portion 152 is pressed against the inner wall of the sleeve 3, bringing the hook portions 152 closer to each other and facilitating attachment of the sleeve 3 to the annular groove 32. When the hook portions 152 are inserted into the annular grooves 32 of the sleeve 3, the distance between the hook portions 152 increases by the space of the enlarged annular grooves 32, and the hook portions 152 move away from each other and return to their original positions. Then, the hook portions 152 engage with the inner wall of the annular grooves 32, and the sleeve 3 is attached to the outside of the base 15.

[0031] As described above, according to the embodiment of the present invention, the coupling body and the base part are integrally formed to enhance the structural strength and avoid damage between the coupling body and the base part, and each component of the core tube component is mounted inside the hole through the positioning hole of the coupling body, so that the component of the core tube component can be positioned inside the hole. From the above detailed description, it is believed that the purpose and effects of the present invention have been fully proven that the present invention has inventive step, is industrially applicable, fully meets the requirements for registration, and can be applied for under the Utility Model Law. However, the above description is only a preferred embodiment of the present invention, and does not limit the technical scope of the present invention. In other words, all equivalent changes and modifications made based on the scope of the utility model registration claims of the present invention are also included in the technical scope of the present invention. We hope that the Patent Office will clearly understand this point and allow the application to be registered. [Explanation of symbols]

[0032] 100 Coupling Components 1 Coupling body 1a Plug side 1b Assembly side 10 holes 101 Contact surface 11 Rectangular structure 12 Positioning hole 13 Docking port 14 Retraction stop 141 Fixed end 142 Free end 15 Base 15a vertical line 151 Cylindrical Structure 152 Hook part 16 Barriers 17 Docking Block 2 Core Tube Components 21 Core Tube 211 Connection pin 212 Stopper 2121 Positioning surface 213 Connecting tube 217 Snap Block 217a horizon line 217b vertical line 2171 Plane 2172 Arc surface 22 Elastic member 3 Sleeve 31 perforation 32 Annular groove 4 Cover X First axis Y Secondary Axis Z 3rd axis

Claims

1. A coupling component for an optical fiber splice, comprising a coupling body, a core tube component, and a sleeve, The coupling body has two ends each including a plug side and an assembly side, and the coupling body has a hole passing through from the plug side to the assembly side, The coupling body has a positioning opening on a side surface of the plug side, and the coupling body has a docking opening on a side surface of the assembly side, the positioning opening and the docking opening communicate with the hole, and the coupling body has a retraction stopper extending outward on a side surface between the plug side and the assembly side, the coupling body includes a base portion located on the assembly side, the coupling body and the base portion being integral with each other, the core tube component includes a core tube and an elastic member that are inserted into the hole through the positioning hole; The sleeve is located outside the base. A coupling component for an optical fiber connector, comprising:

2. The coupling body has a hollow rectangular structure, and the base portion has a hollow cylindrical structure; the docking port is provided on the base portion, and a hole diameter of the positioning hole on the plug side is larger than a hole diameter of the docking port on the assembly side; 2. A coupling component for an optical fiber connector according to claim 1 .

3. the core tube includes a connecting pin, a stopper, and a connecting tube; The connection pin and the connection tube are located on both sides of the stopper, and the connection pin is located at one end of the coupling body in the longitudinal direction and corresponds to the positioning hole; The connecting tube is located at the other end of the coupling body in the longitudinal direction and corresponds to the docking port, and the elastic member is provided outside the connecting tube.

3. A coupling component for an optical fiber connector according to claim 2.

4. The positioning hole is rectangular, the hole is rectangular and has four abutment surfaces, and the stopper is rectangular and has four positioning surfaces, each abutment surface corresponding to each of the positioning surfaces.

4. A coupling component for an optical fiber connector according to claim 3.

5. The elastic member contacts the stopper at one end in the longitudinal direction of the coupling body, the coupling body includes a barrier located within the bore, the resilient member contacting the barrier at the other longitudinal end of the coupling body; 4. A coupling component for an optical fiber connector according to claim 3.

6. The coupling body includes a docking block located within the bore, the core tube includes a snap block located on an outer annular surface of the connecting tube, and the docking block contacts the snap block.

4. A coupling component for an optical fiber connector according to claim 3.

7. The snap block has two flat surfaces on opposite sides of a horizontal line, and the snap block has two arcuate surfaces on opposite sides of a vertical line. A coupling component for an optical fiber connector according to claim 6 .

8. The base portion includes hook portions on both sides of a vertical line, the hook portions protruding in opposite directions to each other, The sleeve has a hole and an annular groove located on an inner wall of the hole, and the hook portion is located in the annular groove.

2. A coupling component for an optical fiber connector according to claim 1 .

9. Further comprising a cover, the cover being positioned in the positioning opening; 2. A coupling component for an optical fiber connector according to claim 1 .

10. Both ends of the retraction stopper portion include a fixed end and a free end, the fixed end being located on the plug side and at one end of a side surface of the coupling body, the free end being located on the assembly side and at the other end of a side surface of the coupling body, and the fixed end extends obliquely from the free end in a direction away from the side surface of the coupling body.

2. A coupling component for an optical fiber connector according to claim 1 .

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