Optical fiber connector

Abstract

This invention relates to an optical fiber connector, comprising a coupling element, a core tube assembly, a sleeve, a metal anti-reverse component, and a pressing component. The core tube assembly is disposed within the coupling element. The metal anti-reverse component is coupled to one end of the coupling element, and the spring arm of the metal anti-reverse component extends obliquely to the other end of the coupling element. The spring arm has multiple anti-reverse structures on both sides. The sleeve is disposed at the other end of the coupling element and coupled with a pressing component. The pressing part of the pressing component extends towards the spring arm. The metal anti-reverse component is fastened to the adapter, thereby extending the service life of the optical fiber connector.

Description

Technical Field

[0001] This invention relates to a connector, and more particularly to an optical fiber connector. Background Technology

[0002] Optical fiber is used for light transmission. To enable fiber optic connections to various electronic devices and allow the transmitted information to be used by these devices, connectors are necessary as intermediaries between the fiber optic cable and the electronic device. A typical fiber optic connector consists of a female adapter and a male fiber optic connector. The female adapter is placed on the electronic device, and the male fiber optic connector is inserted into the female adapter to establish a connection, achieving both secure connection and data transmission. Due to their small size, fiber optic connectors are widely used in optical communication networks, data networks, and cable television networks.

[0003] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the appearance of the prior art fiber optic connector A. Figure 2 This is a side view of the prior art fiber optic connector A and adapter B when they are plugged in. The existing male fiber optic connector A has a plastic fiber housing A1 and an elastic arm A2 on top of the fiber housing A1. The elastic arm A2 extends outward from the top of the fiber housing A1. The elastic arm A2 has a stop block A21 integrally formed on both sides, so that the stop block A21 can selectively engage or disengage from the buckle hole B1 of the adapter B. Because the fiber housing A and the elastic arm A2 are made of a single piece of plastic molding, the elastic arm A2 is prone to breakage when it is bent during insertion and removal. Summary of the Invention

[0004] According to some embodiments, an optical fiber connector includes a coupling element, a core tube assembly, a sleeve, a metal anti-reverse component, and a pressing component; the coupling element has an accommodating space and multiple openings, each opening being located at both ends of the coupling element and communicating with the accommodating space; the core tube assembly is disposed in the accommodating space; the sleeve is coupled to the openings; the metal anti-reverse component has a frame body coupled to one end of the coupling element, the metal anti-reverse component includes a spring arm, the spring arm extending obliquely from the frame body toward the other end of the coupling element, and each side of the spring arm has at least one anti-reverse structure; the pressing component has a sleeve portion and a pressing portion, the sleeve portion being sleeved on the sleeve, and the pressing portion extending from the sleeve portion to the spring arm.

[0005] Preferably, each anti-reverse structure protrudes outward from both sides of the spring arm, and each anti-reverse structure contacts the inner wall of the two mating grooves inside the adapter in a surface-type manner.

[0006] Preferably, each anti-reverse structure has an arc-shaped protrusion, and the outer arc surface of each arc-shaped protrusion contacts the inner wall surface of the two mating grooves inside the adapter in a linear manner.

[0007] Preferably, each side of the spring arm has a limiting part, and each limiting part is adjacent to the outer wall surface of the coupling member. When the pressing part of the pressing member is in the pressing position, each limiting part abuts against the outer wall surface of the coupling member.

[0008] Preferably, the pressing member has a plurality of friction portions for hand contact, each friction portion being disposed on the pressing portion and the pressing portion contacting the top of the spring arm, and the pressing member has an extension section located between the pressing portion and the sleeve portion.

[0009] Preferably, the frame has multiple fastening parts and fixing blocks, the outer wall of the coupling member has multiple fastening parts, each fastening part is fastened to each fastening part, and the fixing block is limited to the outer wall of the coupling member.

[0010] Preferably, the frame has recesses on both sides, each recess corresponding to a protrusion on both sides of the inside of the adapter.

[0011] Preferably, the pressing component has a fixing block, which is disposed in the sleeve portion, and the outer wall surface of the sleeve has a fixing groove, and the fixing block is fastened to the fixing groove.

[0012] Preferably, the pressing member has a fastening part, which is disposed on the sleeve part, and the outer wall surface of the sleeve has a fastening part, which fastens the pressing part to the fastening part.

[0013] Preferably, the sleeve has a snap hole, the inner wall of the snap hole has limiting parts on both sides, and the sleeve has positioning parts on both sides, with each limiting part being engaged with each positioning part.

[0014] Preferably, the coupling member has a mating portion located on the inner wall of the accommodating space and adjacent to the opening, and the sleeve has a joining portion, with the mating portion engaging with the joining portion.

[0015] In summary, according to some embodiments, the metal anti-reverse component of the fiber optic connector is fastened to the adapter in a metal manner, thereby extending the service life of the fiber optic connector; secondly, according to some embodiments, arc-shaped protrusions are provided on both sides of the spring arm of the metal anti-reverse component to increase structural strength; furthermore, according to some embodiments, the spring arm is provided with a limiting part to prevent excessive pressing and avoid deformation of the spring arm. Attached Figure Description

[0016] Figure 1 A schematic diagram illustrating the appearance of a prior art fiber optic connector.

[0017] Figure 2 A side view diagram illustrating the connection of a fiber optic connector and adapter in the prior art.

[0018] Figure 3 The diagram illustrates the appearance of a fiber optic connector based on some embodiments.

[0019] Figure 4The diagram illustrates an exploded view of the front of a fiber optic connector, based on some embodiments, without showing the state of the core tube assembly.

[0020] Figure 5 The diagram illustrates an exploded view of the front of a fiber optic connector, based on some embodiments, showing the state of the core tube assembly.

[0021] Figure 6 The diagram illustrates an exploded view of the back of a fiber optic connector, based on some embodiments, showing the state of the core tube assembly.

[0022] Figure 7 The illustration shows a schematic diagram of the appearance of another pressing component according to some embodiments.

[0023] Figure 8 The diagram illustrates an exploded view of a fiber optic connector and adapter based on some embodiments.

[0024] Figure 9 The illustration shows a side view of the fiber optic connector and adapter being plugged in, according to some embodiments.

[0025] Figure 10 The illustration shows a side view of the fiber optic connector and adapter after they have been plugged in, according to some embodiments.

[0026] Figure 11 The illustration shows the appearance of a single fiber optic connector according to some embodiments.

[0027] Figure 12 The diagram illustrates the appearance of a metal anti-reverse component according to some embodiments.

[0028] Figure 13 The illustration shows a side view of the fiber optic connector and adapter after they have been plugged in, according to some embodiments.

[0029] Symbol Explanation

[0030] 100: Fiber Optic Connector

[0031] 1: Coupling component

[0032] 10: Storage space

[0033] 11: Opening

[0034] 112: Fastening part

[0035] 17: Docking section

[0036] 2: Core tube assembly

[0037] 21: Insert pin

[0038] 25: Spring

[0039] 3: Sleeve

[0040] 312: Fastening part

[0041] 33: Fixing slot

[0042] 36: Positioning Department

[0043] 37: Joint

[0044] 4: Metal stop piece

[0045] 41: Frame

[0046] 412: Fastening part

[0047] 414: concave part

[0048] 42: Spinning arm

[0049] 421: Limiting part

[0050] 43: Fixed block

[0051] 44: Retreat Structure

[0052] 442: Noodles

[0053] 45: Curved bump

[0054] 451: Outer curved surface

[0055] 452: Line

[0056] 5: Pressing component

[0057] 51: Socket section

[0058] 511: Buckle Hole

[0059] 512: Fastening part

[0060] 52: Pressing part

[0061] 521: Friction section

[0062] 53: Fixed block

[0063] 56: Limiting part

[0064] 57: Extension Section

[0065] 7: Compressor

[0066] 8: Tail Sheath

[0067] 9: Adapter

[0068] 914:convex part

[0069] 95: Connecting groove

[0070] P1: Pressing position

[0071] P2: Original position

[0072] A: Fiber optic connector

[0073] A1: Fiber Optic Housing

[0074] A2: Flexible Arm

[0075] A21: Stop block

[0076] B: Adapter

[0077] B1: Buckle hole. Implementation

[0078] Reference Figure 3 , Figure 3 This is a schematic diagram of the appearance of the fiber optic connector 100. In some embodiments, the fiber optic connector 100 is suitable for equipment in the telecommunications, indoor wiring, industrial, military, aerospace, or medical industries. For example, aircraft components in the aerospace industry are connected via the fiber optic connector 100. In some embodiments, the fiber optic connector 100 includes a coupling element 1, a core tube assembly 2, a sleeve 3, a metal retainer 4, and a pressing element 5 (such as...). Figure 4 (As shown).

[0079] Coupler 1 has a accommodating space 10 (e.g. Figure 5 (as shown) and multiple openings 11, each opening 11 located at both ends of the coupling member 1 and connected to the accommodating space 10 (as shown). Figure 5 and Figure 6 (As shown); the core tube assembly 2 is disposed in the accommodating space 10; the sleeve 3 is connected to the opening 11; the metal anti-reverse member 4 has a frame 41, which is connected to one end of the coupling member 1. The metal anti-reverse member 4 includes a spring arm 42, which extends obliquely from the frame 41 toward the other end of the coupling member 1. Each side of the spring arm 42 has at least one anti-reverse structure 44; the pressing member 5 has a sleeve portion 51 and a pressing portion 52. The sleeve portion 51 is sleeved on the sleeve 3, and the pressing portion 52 extends from the sleeve portion 51 toward the spring arm.

[0080] After the coupling element 1 and the metal anti-reverse component 4 are assembled, the all-metal metal anti-reverse component 4 is used for docking with the adapter 9 (e.g., Figure 9 As shown, the robust metal anti-reverse component 4 prevents damage and extends the service life of the fiber optic connector 100. The metal anti-reverse component 4 is also resistant to high and low temperatures.

[0081] In some embodiments, two coupling elements 1 are used (e.g.) Figure 3 (as shown), but not limited thereto, in one embodiment, a coupling element 1 can be used (e.g. Figure 11As shown), or three or more coupling elements 1 are used: In some embodiments, two coupling elements 1 are used in conjunction with a pressing element 3 structure, but not limited thereto. In some embodiments, one coupling element 1 can be used in conjunction with a pressing element 3 structure, or three or more coupling elements 1 can be used with only one pressing element 3 structure.

[0082] See Figure 3 In some embodiments, the two coupling elements 1 are respectively assembled with core tube assemblies 2 to form a dual-core type fiber optic connector 100, which has the advantage of saving cabling space.

[0083] See Figure 3 In some embodiments, two coupling elements 1 are used as an example. Each coupling element 1 is arranged side by side with each other. Each coupling element 1 is a cuboid structure and there is a gap between each coupling element 1. The gap is a gap between each coupling element 1.

[0084] See Figures 5 to 6 , Figure 5 This is an exploded view of the front of the fiber optic connector 100, showing the state of the core tube assembly 2. Figure 6 This is an exploded view of the back of the fiber optic connector 100, showing the state of the core tube assembly 2. In some embodiments, the core tube assembly 2 is disposed within the coupling member 1. The core tube assembly 2 includes a pin 21 and a spring 25. The pin 21 is located at the opening 11 and is coupled to a ceramic core tube. The core tube is used to cover the optical fiber and to align the optical fiber with the core hole of the core tube. The pin 21 is located at one end of the core tube. The sleeve 3 is made of metal. One end of the sleeve 3 is fitted onto the other end of the core tube, and the other end of the sleeve 3 is connected to a compression member 7 (such as...). Figure 4 As shown), the compression component 7 is combined with the tail sleeve 8, which is fitted over the outer sheath of the transmission line. The compression component 7 increases the tensile force to prevent the fiber optic connector 100 from detaching from the outer sheath of the line when it is pulled forcefully. The sleeve 3 is assembled at the rear end of the coupling component 1. The spring 25 is fitted over the other end of the core tube and is placed inside the sleeve 3. One end of the spring 25 abuts against the core tube, and the other end of the spring 25 abuts against the sleeve 3. The spring 25 is used to give the core tube a buffering effect.

[0085] See Figures 5 to 6 In some embodiments, the sleeve portion 51 of the pressing member 5 is a ring, the sleeve portion 51 has a snap hole 511, the inner wall of the snap hole 511 has a limiting portion 56 on both sides, the sleeve 3 has a positioning portion 36 on both sides, each limiting portion 56 is respectively connected to each positioning portion 36, the limiting portion 46 and the positioning portion 36 are corresponding planar structures, restricting the rotation between the sleeve portion 51 and the sleeve 3.

[0086] See Figures 5 to 6In some embodiments, the pressing part 52 of the pressing member 5 is a curved spring piece, which is integrated with the sleeve part 51. The curved spring piece extends outward from the top of the sleeve part 51 to the top of the spring arm 42.

[0087] Please see Figure 6 In some embodiments, the pressing member 5 has a plurality of friction portions 521 for hand contact, each friction portion 521 being disposed on the pressing portion 52, the pressing portion 52 contacting the top of the spring arm 42; the plurality of friction portions 521 increase the friction of the hand, improving the feel when pressing.

[0088] See Figures 5 to 6 In some embodiments, the frame 41 has multiple fastening parts 412 and fixing blocks 43. The fastening parts 412 are protrusion structures on the inner side of the frame 41. The outer wall of the coupling member 1 has multiple fastening parts 112. The fastening parts 112 are groove structures on the outer wall of the coupling member 1. Each fastening part 412 is fastened to each fastening part 112. The fixing block 43 is limited to the outer wall of the coupling member 1. The fixing block 43 is a bent structure at the front end of the frame 41. The fixing block 43 abuts against the front end of the coupling member 1 to limit the displacement of the coupling member 1 and prevent the frame 41 from separating from the coupling member 1.

[0089] See Figures 5 to 6 In some embodiments, the pressing member 5 has a fixing block 53, which is disposed on the sleeve portion 51. The outer wall surface of the sleeve 3 has a fixing groove 33. The fixing block 53 is fastened to the fixing groove 33 to increase the structural strength. The fixing block 53 is a bent structure on the side of the sleeve portion 51. The fixing block 53 is limited to the fixing groove 33 to restrict the displacement of the pressing member 5 and the sleeve 3, thereby increasing the structural strength.

[0090] See Figures 5 to 6 In some embodiments, the pressing member 5 has a fastening part 512, which is disposed on the sleeve part 51, and the outer wall surface of the sleeve 3 has a fastening part 312; the fastening part 512 is a protrusion structure on the inner side of the sleeve part 51, and the fastening part 312 is a groove structure on the outer wall surface of the sleeve 3. Each fastening part 512 is fastened to each fastening part 312, thereby restricting the displacement of the pressing member 5 and the sleeve 3.

[0091] Please see Figure 6 In some embodiments, the coupling member 1 has a mating portion 17, which is located on the inner wall of the accommodating space 10 and adjacent to the opening 11. The sleeve 3 has a joining portion 37, and the mating portion 17 is engaged with the joining portion 37. In some embodiments, the mating portion 17 is an internal thread, and the joining portion 37 is an external thread. The internal thread and the external thread are screwed together, but this is not a limitation. In some embodiments, the mating portion 17 and the joining portion 37 can be engaged by a concave-convex structure, or the mating portion 17 and the joining portion 37 can be engaged by an interference clamping method.

[0092] In some embodiments, the pressing member 5 has an extension 57 located between the pressing portion 52 and the sleeve portion 51. The extension 57 may be a single plate (e.g., ...). Figure 6 (as shown) or multiple panels (such as) Figure 7 (As shown).

[0093] Please see Figure 5 and Figure 8 , Figure 8 This is an exploded view of the fiber optic connector 100 and the adapter 9. In some embodiments, the frame 41 has recesses 414 on both sides, and each recess 414 corresponds to a protrusion 914 on both sides of the inside of the adapter 9.

[0094] Please see Figure 9 In some embodiments, when the pressing part 52 of the pressing member 5 is in the pressing position P1, the rear end of the spring arm 42 is pushed downward by the pressing part 52, causing the spring arm 42 to drive each anti-reverse structure 44 to move downward inside the adapter 9.

[0095] Please see Figure 9 In some embodiments, the elastic arm 42 has a limiting part 421 on each side, and each limiting part 421 is adjacent to the outer wall surface of the coupling member 1. When the pressing part 52 of the pressing member 5 is in the pressing position P1, each limiting part 421 abuts against the outer wall surface of the coupling member 1, limiting the downward displacement distance of the elastic arm 42, preventing the elastic arm 42 from being pressed too much, and avoiding the elastic arm 42 from being unable to recover its elastic force after deformation.

[0096] Please see Figure 9 , Figure 9 This is a side view of the fiber optic connector 100 and adapter 9 when they are plugged in; in some embodiments, each anti-reverse structure 44 has an arc-shaped protrusion 45 (or a pointed conical protrusion), and each anti-reverse structure 44 protrudes outward from both sides of the spring arm 42; after the fiber optic connector 100 and adapter 9 are plugged in, the outer arc surface 451 of the arc-shaped protrusion 45 of each anti-reverse structure 44 contacts the inner wall surface of the two mating grooves 95 inside the adapter 9 in the form of a line 452 (e.g., Figure 10 As shown, each arc-shaped protrusion 45 is securely fastened to each mating groove 95 to prevent it from coming apart. The structure of the arc-shaped protrusion 45 has the function of increasing the structural strength.

[0097] In some embodiments, such as Figure 10 Viewed in cross-section, the arc-shaped protrusion 45 is a curved structure extending beyond a semicircle (or ellipse). The area of ​​the curved structure extending beyond the semicircle increases the strength of the arc-shaped protrusion 45 structure. In some embodiments, such as Figure 10 The arc-shaped protrusion 45 shown bends downwards toward the coupling member 1, but is not limited thereto. In some embodiments, such as... Figure 10The arc-shaped protrusion 45 shown can be curved in a direction away from the coupling member 1.

[0098] Please see Figure 10 , Figure 10 This is a side view of the fiber optic connector 100 and adapter 9 after they are plugged in. In some embodiments, when the pressing part 52 of the pressing member 5 is in the original position P2, a height distance is formed between the rear end of the spring arm 42 and the outer surface of the coupling member 1. The pressing part 52 contacts the top of the rear end of the spring arm 42. The spring arm 42 moves upward to return to the original position P2 due to the rebound force. This causes the spring arm 42 to drive each anti-retraction structure 44 to move upward, so that the arc-shaped protrusions 45 of each anti-retraction structure 44 are engaged with the two mating slots 95 of the adapter 9, and the fiber optic connector 100 is secured inside the housing of the adapter 9.

[0099] Please see Figure 12 and Figure 13 , Figure 12 This is a schematic diagram of the appearance of the metal anti-reverse component 4. Figure 13 This is a side view of the fiber optic connector 100 and adapter 9 after they are plugged in. In some embodiments, each anti-reverse structure 44 protrudes outward from both sides of the spring arm 42. When the fiber optic connector 100 and adapter 9 are plugged in, the end face of each anti-reverse structure 44 contacts the inner wall of the two mating grooves 95 inside the adapter 9 in the form of a surface 442. The end face of each anti-reverse structure 44 is firmly fastened to each mating groove 95 to prevent it from coming off. The structure of each anti-reverse structure 44 has the function of increasing the structural strength.

[0100] In summary, according to some embodiments, the metal anti-reverse component of the fiber optic connector is fastened to the adapter in a metal manner, thereby extending the service life of the fiber optic connector; secondly, according to some embodiments, arc-shaped protrusions are provided on both sides of the spring arm of the metal anti-reverse component to increase structural strength; furthermore, according to some embodiments, the spring arm is provided with a limiting part to prevent excessive pressing and avoid deformation of the spring arm.

Claims

1. An optical fiber connector, characterized in that: A coupling member has a receiving space and multiple openings, each of the openings being located at both ends of the coupling member and communicating with the receiving space. The outer wall surface of the coupling member has a fastening part, which is a groove structure on the outer wall surface of the coupling member. A single-core tube assembly, wherein the single-core tube assembly is disposed in the accommodating space; A sleeve, wherein the sleeve is connected to the opening; A metal anti-reverse member has a frame body connected to one end of a coupling member. The metal anti-reverse member includes a spring arm extending obliquely from the frame body toward the other end of the coupling member. At least one anti-reverse structure is provided on each side of the spring arm. The frame body has a fastening portion and a fixing block. The fastening portion is a protrusion structure on the inner side of the frame body, fastened to the fastening portion. The fixing block is located on the outer wall surface of the coupling member, and is a bent structure at the front end of the frame body. The fixing block abuts against the front end of the coupling member, restricting the displacement of the coupling member and preventing the frame body from separating from the coupling member. A pressing member having a sleeve portion and a pressing portion, the sleeve portion being sleeved onto the sleeve, and the pressing portion extending from the sleeve portion toward the spring arm.

2. The fiber optic connector of claim 1, characterized by: Each of the aforementioned anti-reverse structures protrudes outward from both sides of the spring arm, and each of the aforementioned anti-reverse structures contacts the inner wall of the two mating grooves inside an adapter in a one-sided manner.

3. The fiber optic connector of claim 1, characterized by: Each of the aforementioned anti-reverse structures has an arc-shaped protrusion, and one of the outer arc surfaces of each of the aforementioned arc-shaped protrusions contacts the inner wall of two mating grooves inside an adapter in a straight line configuration.

4. The fiber optic connector of claim 1, characterized by: The elastic arm has a limiting part on each side, and each limiting part is adjacent to the outer wall surface of the coupling member. When the pressing part of the pressing member is in a pressing position, each limiting part abuts against the outer wall surface of the coupling member.

5. The fiber optic connector according to claim 1, characterized in that: The pressing member has a plurality of friction portions for hand contact, each friction portion being disposed on the pressing portion, the pressing portion contacting the top of the spring arm, and the pressing member having an extension section located between the pressing portion and the sleeve portion.

6. The fiber optic connector according to claim 1, characterized in that: The frame has multiple fastening parts and a fixing block. The outer wall of the coupling member has multiple fastening parts. Each of the fastening parts is fastened to each of the fastening parts. The fixing block is located on the outer wall of the coupling member.

7. The fiber optic connector according to claim 6, characterized in that: The frame has a recess on each side, and each recess corresponds to a protrusion on each side of the inside of an adapter.

8. The fiber optic connector according to claim 1, characterized in that: The pressing component has a fixing block disposed on the sleeve portion, and the outer wall surface of the sleeve has a fixing groove, and the fixing block is fastened to the fixing groove.

9. The fiber optic connector according to claim 8, characterized in that: The pressing member has a fastening part, which is disposed on the sleeve part. The outer wall surface of the sleeve has a fastening part, which fastens to the fastening part.

10. The fiber optic connector according to claim 1, characterized in that: The sleeve has a snap hole, and there is a limiting part on both sides of the inner wall of the snap hole. There is a positioning part on both sides of the sleeve, and each limiting part is respectively engaged with each positioning part.

11. The fiber optic connector according to claim 1, characterized in that: The coupling member has a mating portion located on the inner wall of the accommodating space and adjacent to the opening, and the sleeve has a joining portion to which the mating portion is joined.

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