TWM627690U - Optic fiber connector and optic fiber connecting assembly - Google Patents

Abstract

An optic fiber connector including a housing, a core tube, a sleeve assembly, and a pull strip is provided. The core tube disposed in the housing is partially protruded out of the housing. The sleeve assembly assembled to the housing is sheathed on a portion of the core tube. The pull strip is elastic and assembled to the housing, wherein the pull strip has an arc-shaped protrusion when there is no force applied onto the pull strip, and the pull strip is drawn to flatten the arc-shaped protrusion.

Description

Optical fiber connectors and optical fiber connection components

The novel creation relates to an optical fiber connector and an optical fiber connection assembly.

Due to the advantages of high bandwidth and low loss, optical fiber has been widely used as a signal transmission medium in recent years. Therefore, with the expansion of optical communication network technology, wide area networks such as the Internet and intranet have become popular. Improve communication flow.

Generally speaking, the general optical fiber connector is composed of a female adapter (Adapter) and a male optical fiber connector. The female adapter is installed in the electronic device, and the male optical fiber connector is inserted into the female adapter. Connection relationship, so as to achieve the purpose of locking and data transmission at the same time.

In addition, with the development of technology, optical fiber connectors have developed SPF (Small Form-Factor Pluggable) interface with hot-plug function, SFF (Small Form Factor) interface and QSFP+ with high-speed transmission performance due to industrial needs. /QSFP DD/OSFP...etc. However, the status quo of these products is often due to the size structure It is large and has a high space ratio, which cannot effectively reduce the optical path spacing, and cannot meet the requirements of 5G communication for wiring density.

For example, Figure 1 is an exploded view of some components of an existing optical fiber connector, wherein the relevant dimensions include: shell size A=4.47mm, shell size B=4.47mm, outer diameter of the core tube C=1.25mm, Outer diameter dimension D=3mm. In addition, FIG. 2 is a partial schematic diagram of an optical fiber adapter, which is used to correspond to the optical fiber connector shown in FIG. 1 , that is, two optical fiber connectors shown in FIG. 1 can be adapted and accommodated in the adapter, wherein the relevant dimensions of the adapter Including: the outer diameter of the sleeve E=1.62mm, the inner diameter of the sleeve F=1.25mm, and the sleeve spacing G of the adapter (equivalent to the connection of any adjacent two optical fibers after multiple optical fiber connectors are integrated into the adapter The optical path spacing of the device)=6.25mm.

At the same time, for users, after the above-mentioned high-density wiring optical fiber connectors and corresponding adapters are produced, problems such as how to install and disassemble (plug and unplug) smoothly and conveniently follow.

Based on the above, how to make the optical fiber connector and the adapter form a high-density and independent integrated structure with simple structure matching, and at the same time have the convenience of disassembly and assembly for the user, has become a problem that the relevant technicians need to think about and overcome.

The novel creation provides an optical fiber connector and an optical fiber connection assembly to provide a high-density integrated optical fiber group.

The newly created optical fiber connector includes a shell, a core tube, a ferrule assembly and a pull rod. The core tube is arranged in the casing and partially protrudes from the casing. The sleeve assembly is arranged on the casing and sleeved on a part of the core tube. The pull bar is arranged on the casing and has elasticity. When no force is applied, an arc-shaped bulge is formed in part of the brace, and when the brace is pulled, the arc-shaped bulge is flattened.

In an embodiment of the present invention, the top of the casing has an assembly hole, the pull bar has an assembly convex portion, and the assembly convex portion is assembled in the assembly hole to form an interference fit, so that one end of the pull bar is fixed on the top of the casing .

In an embodiment of the present invention, the side portion of the casing has a limit groove, and the pull bar also has a guide hook, and the guide hook is slidably coupled to the limit groove.

In an embodiment of the present invention, the extending direction of the above-mentioned limiting groove is consistent with the insertion and extraction direction of the optical fiber connector, and restricts the pulling direction of the pull bar.

In an embodiment of the present invention, the above-mentioned brace has a fixed end and a free end, the fixed end is fixed to the casing, the free end is suitable for being forced to flatten the arc-shaped protrusion, and the guide hook is located between the free end and the arc. between the bulges.

In an embodiment of the present invention, the above-mentioned sleeve assembly includes a first sleeve, a spring, a second sleeve, a third sleeve and a tail sleeve. A part of the core tube is inserted into the first sleeve, the spring is sleeved in the first sleeve, the second sleeve is fastened in the casing, a part of the second sleeve is inserted into the third sleeve, and the third sleeve is inserted into the third sleeve. The tube is inserted into the tail sleeve.

In an embodiment of the present invention, the above-mentioned first sleeve has a blocking protrusion, and the spring abuts against the blocking protrusion.

In an embodiment of the present invention, the side portion of the casing has a retaining hole, the second sleeve has a retaining protrusion, and the retaining protrusion is retained in the retaining hole.

In an embodiment of the present invention, the length of the above-mentioned spring is 5.5mm to 6.0mm, the wire diameter is 0.23mm, and is used to bear a force of 5N to 6N.

In an embodiment of the present invention, the outer diameter of the core tube is 0.6 mm to 0.8 mm.

The optical fiber connection assembly created by the present invention includes an adapter and a plurality of the above-mentioned optical fiber connectors. The adapter includes a main body, a plurality of holding sleeves and a holding seat, wherein the main body has a front side and a rear side opposite to each other, and the holding seat is arranged on the front side of the main body. The main body has a plurality of insertion holes, and the holding sleeves are respectively arranged in the insertion holes and the holding seat. The optical fiber connector is butted to the adapter from the rear side of the body, so that the core tubes are respectively held in the holding sleeves correspondingly.

In an embodiment of the present invention, the above-mentioned body has a plurality of locking holes, and the pull bars of each optical fiber connector have locking protrusions. After the optical fiber connector is docked to the adapter, the locking protrusions are correspondingly locked in the locking holes. When the pull bar is stressed so that the arc-shaped protrusion is pulled out, the buckle protrusion exits the card hole.

In an embodiment of the present invention, the above-mentioned locking holes are located at the top of the main body and the bottom of the main body, respectively. The fiber optic connectors mated to the adapter are arranged in two rows and are parallel to each other, and the two rows are upside down.

In an embodiment of the present invention, a protective cover is also included, which is assembled to or disassembled from the front side of the main body.

In an embodiment of the present invention, at least one protective sleeve is further included, which is used to be assembled to at least one insertion hole on the rear side of the main body that is not butted with the optical fiber connector, or to be disassembled from the insertion hole.

In an embodiment of the present invention, the distance between two adjacent insertion holes is 2.3 mm to 2.8 mm.

In an embodiment of the present invention, the inner diameter of the holding sleeve is 0.58mm to 0.8mm.

Based on the above, while reducing the size of the optical fiber connector of the present invention, its structure is further adjusted to facilitate the assembly with the adapter to form a high-density integrated structure. Pulling the pull bar, the pull bar has a buckle protrusion for snapping to the adapter, and the pull bar also has elasticity and forms an arc-shaped protrusion when the user exerts force on the pull bar to compress the arc. After the shaped protrusion is flattened, the snap protrusion can be withdrawn from the snap hole of the adapter, so as to achieve the purpose of releasing the optical fiber connector from the adapter. On the contrary, when the optical fiber connector is plugged into the adapter, the core tube of the optical fiber connector can be held in the holding sleeve of the adapter, and the aforementioned snap protrusions are fastened to the snap hole, so as to maintain the fixation between the optical fiber connector and the adapter. connection. Accordingly, the optical fiber connection assembly can be smoothly reduced in size without hindering the aforementioned assembly process with the adapter, and a high-density integrated structure can be formed accordingly. Correspondingly, the adapter matched with the optical fiber connector is also reduced in size, and has a combination structure that can correspond to the optical fiber connector, so that the optical fiber connection assembly with high density integration and reduced size can be assembled.

10: Optical fiber connection components

100: Fiber Connector

110: Shell

111: Chute

112: Limit slot

113: Buckle hole

114: Assembly holes

120: Pull bar

122: Arc convex

123: Snap protrusion

124: Assembly convex part

126: Guide hook

130: Protective cover

140: core tube

150: First casing

151: stop protrusion

160: spring

170: Second casing

171: Buckle the convex part

180: Third casing

190: tail sleeve

200: Adapter

210: Ontology

211: Card hole

212: plug hole

220: Protective casing

230: Retaining sleeve

240: Holder

250: Protective cover

A, B: shell size

C, D, E: outer diameter size

F: Inner diameter size

G: Spacing

E1: Fixed end

E2: Free end

d1: hole distance

S1: Front side

S2: rear side

TS: Casing Assembly

FIG. 1 is an exploded view of a part of the components of a conventional optical fiber connector.

Figure 2 is a partial schematic view of a fiber optic adapter.

3 is a schematic diagram of an optical fiber connection assembly according to an embodiment of the present invention.

Figure 4 is a schematic diagram of an adapter.

Figure 5 is an exploded view of the adapter.

Figure 6 is a schematic diagram of a fiber optic connector.

Figure 7 is an exploded view of the fiber optic connector.

FIG. 8 is a cross-sectional view of the fiber optic connection assembly of FIG. 3 .

3 is a schematic diagram of an optical fiber connection assembly according to an embodiment of the present invention. Figure 4 is a schematic diagram of an adapter. Figure 5 is an exploded view of the adapter. Please refer to FIGS. 3 to 5 simultaneously. In this embodiment, the optical fiber connection assembly 10 includes an adapter 200 and a plurality of optical fiber connectors 100 . The adapter 200 includes a main body 210 , a plurality of holding sleeves 230 and a holding seat 240 , wherein the main body 210 has a front side S1 and a rear side S2 opposite to each other, and the holding seat 240 is disposed on the front side S1 of the main body 210 . The body 210 has a plurality of insertion holes 212 , and the holding sleeves 230 are respectively disposed in the insertion holes 212 and the holding seat 240 , and are movable along the assembly axis. The fiber optic connector 100 is docked and held to the adapter 200 from the rear side S2 of the body 210 .

Please refer to FIG. 3 and FIG. 5 again. In this embodiment, the adapter 200 further includes a protective cover 250 and a plurality of protective sleeves 220 , wherein the protective cover 250 is assembled to the main body 210 . The front side S1 of the optical fiber connector 100 can be disassembled from the front side S1; Here, the protection cover 250 and the protection sleeve 220 are assembled when the adapter 200 is not docked with the optical fiber connector 100, so as to provide the required protection effect.

Figure 6 is a schematic diagram of a fiber optic connector. Figure 7 is an exploded view of the fiber optic connector. Please refer to FIG. 6 and FIG. 7 at the same time. In this embodiment, the optical fiber connector 100 includes a housing 110 , a core tube 140 , a ferrule assembly TS, and a tension bar 120 . The core tube 140 is disposed in the casing 110 and partially protrudes from the casing 110 . The sleeve assembly TS is disposed on the casing 110 and sleeved on a part of the core tube 140 . The pull bar 120 is disposed on the casing 110 and has elasticity. When no force is applied, an arc-shaped protrusion 122 is formed on a part of the tension bar 120 , and when the tension bar 120 is pulled, the arc-shaped protrusion 122 is flattened.

Further, as shown in FIG. 7 , the top of the housing 110 has an assembly hole 114 , and the brace 120 has a fixed end E1 and a free end E2 opposite to each other, and an assembly convex portion 124 located at the fixed end E1 , the assembly convex portion 124 is assembled to the assembling hole 114 to form an interference fit, so that the fixing end E1 of the pull bar 120 is fixed to the top of the housing 110 . Furthermore, the side portion of the housing 110 has a limiting slot 112 , and the pull bar 120 also has a guide hook 126 , and the guide hook 126 is slidably coupled to the limit slot 112 , so as to limit the use of the pull bar 120 The movement path of the puller. That is to say, the extending direction of the limiting slot 112 in this embodiment is consistent with the insertion and extraction direction of the optical fiber connector 100 , and the user also pulls the pull bar 120 in the insertion and extraction direction (the pulling direction is the same as the insertion and extraction direction). the same direction). To put it simply, for the pull bar 120 of the present embodiment, the fixed end E1 is used to be fixed on the top of the housing 110 , the free end E2 is suitable for being forced to flatten the arc-shaped protrusion 122 , wherein the guide hook 126 is located at the free end E2 between the end E2 and the arc-shaped protrusion 122 .

As shown in FIG. 7 , the top of the housing 110 also has a chute 111 , the rear half of the pull bar 120 close to the free end E2 slidably contacts the chute 111 , and the first half of the pull bar 120 close to the fixed end E1 passes through an arc-shaped protrusion The lifter 122 is connected to the second half of the pull bar 120 , and there is a step difference between the first half and the second half, so as to facilitate the user to flatten the arcuate protrusion 122 and withdraw the buckle protrusion 123 from the locking hole 211 .

In addition, the sleeve assembly TS of this embodiment includes a first sleeve 150 , a spring 160 , a second sleeve 170 , a third sleeve 180 and a tail sleeve 190 , wherein a part of the core tube 140 is inserted into the first sleeve 150 Inside, the spring 160 is sleeved on the first sleeve 150 , the second sleeve 170 is fastened in the housing 110 , a part of the second sleeve 170 is inserted into the third sleeve 180 , and the third sleeve 180 is inserted into the casing 110 . Connected to the boot 190. The optical fiber connector 100 of this embodiment further includes a protective cover 130 assembled to the opening 115 of the housing 110 to cover and protect the core tube 140 protruding from the housing 110 .

FIG. 8 is a cross-sectional view of the fiber optic connection assembly of FIG. 3 . Please refer to FIG. 7 and FIG. 8 at the same time, the first sleeve 150 has a blocking protrusion 151 , such as an outer ring structure on the outer surface of the first sleeve 150 , so that the spring 160 can resist when the first sleeve 150 is sleeved. Connected to the blocking protrusion 151 . The side of the housing 110 has a retaining hole 113 , and the second sleeve 170 has a retaining protrusion 171 , such as a non-closed outer ring structure on the outer surface of the second sleeve 170 , which can be assembled into the second sleeve 170 When the housing 110 is locked, the locking protrusions 171 are locked in the locking holes 113 to complete the fixing of the components. Here, the length of the spring 160 is 5.5mm to 6.0mm, and the wire diameter is 0.23mm, and is used to withstand a force of 5N to 6N, so that the optical fiber connector 100 can maintain the required assembly capacity due to the reduction in size. At the same time, the stop protrusion 151 of the first sleeve 150 abuts against the inner stop structure of the housing 110 (as shown in FIG. 8 , the left side of the stop protrusion 151 abuts), so as to limit the relative movement of the core tube 140 to the inner stop structure. The location of the housing 110 .

Please refer to FIG. 3 and FIG. 8 at the same time. In this embodiment, the body 210 of the adapter 200 has a plurality of locking holes 211 , and the pull bar 120 of each optical fiber connector 100 has a locking protrusion 123 located on the arc-shaped protrusion 122 between the fixed end E1. When the optical fiber connector 100 is docked to the adapter 200 , the core tubes 140 are respectively held in the holding sleeves 230 correspondingly, and the locking protrusions 123 are correspondingly held in the locking holes 211 . When the pull bar 120 is subjected to force (in FIG. 8 , the user provides a rightward force to pull the pull bar 120 ) so that the arc-shaped protrusion 122 is pulled flat, just like the existence of the above-mentioned height difference, the buckle protrusion The portion 123 can be smoothly withdrawn from the clamping hole 211 , so that the optical fiber connector 100 can be removed from the adapter 200 .

Referring to FIGS. 1 , 4 and 8 again, the adapter 200 of the present embodiment is used for inserting a plurality of optical fiber connectors 100 to form a high-density integrated structure, wherein the plurality of card holes 211 of the main body 210 are respectively located on the top of the main body 210 and the bottom, so that the optical fiber connectors 100 docked to the adapter 200 are in two rows and parallel to each other, and the two rows are upside down to form a 2×6 array. Here, the hole distance d1 of the two adjacent insertion holes 212, which is also equivalent to the optical path of the two adjacent optical fiber connectors 100, is 2.3 mm to 2.8 mm. The 140 can be smoothly assembled to the holding sleeve 230 . Here, the inner diameter of the holding sleeve 230 is 0.58mm to 0.8mm to match the outer diameter of the core tube 140 is 0.6mm to 0.8mm.

To sum up, in the above-mentioned embodiments of the present invention, while the size of the optical fiber connector is reduced, its structure is further adjusted to facilitate the assembly with the adapter to form a high-density integrated structure. The top plate of the casing is provided with a pull bar that can be pulled. The pull bar has a snap-on protrusion for snapping to the adapter, and the pull bar also has elasticity and forms an arc-shaped protrusion when it is not under force, so that it can be used when used. After the user exerts force on the pull bar to flatten the arc-shaped protrusion, the buckle protrusion can be released from the adapter's The hole exits to release the fiber optic connector from the adapter. On the contrary, when the optical fiber connector is plugged into the adapter, the core tube of the optical fiber connector can be held in the holding sleeve of the adapter, and the aforementioned snap protrusions are fastened to the snap hole, so as to maintain the fixation between the optical fiber connector and the adapter. connection. Accordingly, the optical fiber connection assembly can be smoothly reduced in size without hindering the aforementioned assembly process with the adapter, and a high-density integrated structure can be formed accordingly. Correspondingly, the adapter matched with the optical fiber connector is also reduced in size, and has a combination structure that can correspond to the optical fiber connector, so that the optical fiber connection assembly with high density integration and reduced size can be assembled.

10: Optical fiber connection components

100: Fiber Connector

110: Shell

120: Pull bar

190: tail sleeve

200: Adapter

210: Ontology

211: Card hole

250: Protective cover

Claims (17)

An optical fiber connector, comprising: a shell; a core tube, disposed in the casing, and a part of the core tube protrudes from the casing; a sleeve assembly, disposed on the casing and sleeved on a part of the core pipe; and A pull bar is arranged on the housing, the pull bar has elasticity, and when no force is applied, a part of the pull bar forms an arc-shaped protrusion, and the pull bar is suitable for being pulled by force, so that the pull bar is Arc-shaped protrusions are flattened. The optical fiber connector as claimed in claim 1, wherein the top of the housing has an assembly hole, the pull bar has an assembly convex portion, and the assembly convex portion is assembled in the assembly hole to form an interference fit, so that the pull bar One end is fixed to the top of the shell. The optical fiber connector as claimed in claim 1, wherein a side portion of the housing has a limit groove, and the pull bar further has a guide hook, and the guide hook is slidably coupled to the limit groove. The optical fiber connector according to claim 3, wherein the extension direction of the limiting groove is consistent with the insertion and extraction direction of the optical fiber connector, and restricts the pulling direction of the pull bar. The optical fiber connector of claim 3, wherein the pull bar has a fixed end and a free end, the fixed end is fixed to the housing, the free end is suitable for being forced to flatten the arc-shaped protrusion, and the guide The engaging hook is located between the free end and the arc-shaped protrusion. The fiber optic connector of claim 1, wherein the ferrule assembly comprises: a first sleeve, a part of the core tube is inserted into the first sleeve; a spring, sleeved on the first sleeve; a second sleeve, fastened in the casing; a third sleeve, a part of the second sleeve is inserted into the third sleeve; and a tail sleeve, and the third sleeve is inserted into the tail sleeve. The optical fiber connector of claim 6, wherein the first sleeve has a stop protrusion, and the spring abuts against the stop protrusion. The optical fiber connector of claim 6, wherein a side portion of the housing has a retaining hole, the second sleeve has a retaining protrusion, and the retaining protrusion is fastened to the retaining hole. The optical fiber connector of claim 6, wherein the length of the spring is 5.5 mm to 6.0 mm, the wire diameter is 0.23 mm, and is used to withstand a force of 5 Newtons to 6 Newtons. The optical fiber connector of claim 1, wherein the outer diameter of the core tube is 0.6 mm to 0.8 mm. An optical fiber connection assembly, comprising: The plurality of fiber optic connectors of any one of claims 1 to 10; and An adapter includes a main body, a plurality of holding sleeves and a holding seat, wherein the main body has a front side and a rear side opposite to each other, the holding seat is arranged on the front side of the main body, and the main body has a plurality of insertion holes , the holding sleeves are respectively disposed in the insertion holes and the holding seat, the optical fiber connectors are butted to the adapter from the rear side of the main body, so that the core tubes are respectively correspondingly held in the retained in the casing. The optical fiber connection assembly of claim 11, wherein the body has a plurality of snap holes, and the pull bar of each of the optical fiber connectors has a snap protrusion, when the optical fiber connectors are butted to the adapter, the The buckling protrusions are correspondingly buckled in the catching holes, and when the pull bar is forced to make the arc-shaped protrusions flattened, the buckling protrusions exit the catching holes. The optical fiber connection assembly of claim 12, wherein the card holes are located at the top of the main body and the bottom of the main body respectively, the optical fiber connectors connected to the adapter are in two rows and are parallel to each other, and the two rows are in a row. Upside down. The optical fiber connection assembly of claim 11, further comprising a protective cover assembled to or disassembled from the front side of the body. The optical fiber connection assembly according to claim 11, further comprising at least one protective sleeve to be assembled to at least one of the insertion holes on the rear side of the main body that is not butted with the optical fiber connector, or to be disassembled from the insertion hole . The optical fiber connection assembly according to claim 11, wherein the hole spacing of two adjacent insertion holes is 2.3 mm to 2.8 mm. The optical fiber connection assembly of claim 11, wherein the inner diameter of the retaining sleeve is 0.58 mm to 0.8 mm.

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