CN104516058A - Optical fiber connector - Google Patents

Abstract

An optical fiber connector is used for accommodating optical fibers. The optical fiber connector comprises a housing which comprises a top surface and forms an accommodating space from the top surface. The housing further comprises a bottom wall which is adjacent to the accommodating space and away from the top surface. The bottom wall is provided with trenches, first accommodating grooves, and clamping holes. The first accommodating grooves and the trenches are communicated with each other in a one-to-one correspondence manner, and the axis of each first accommodating groove is aligned with the axis of the corresponding trench. The optical fiber connector further comprises a clamping buckle. The clamping buckle comprises a cantilever beam and clamping hooks extending from the cantilever beam. The cantilever beam has a bottom surface, and second accommodating grooves are formed in the cantilever beam from the bottom surface. The clamping buckle is accommodated in the accommodating space. The clamping hooks extend into the clamping holes to fix the clamping buckle to the housing. The first accommodating grooves and the second accommodating grooves jointly form accommodating holes. The trenches and the accommodating holes are jointly used for accommodating optical fibers.

Description

The optical fiber connector

technical field

The invention relates to an optical fiber connector.

Background technique

Optical fiber connectors are used to hold and fix optical fibers. Two optical fiber connectors are inserted into each other and form an optical channel between the optical fibers to transmit optical signals. Fiber optic connectors generally include a housing that includes an optical face that faces another fiber optic connector when mated. A groove extending along a direction perpendicular to the optical surface and a receiving hole are formed on the casing, the receiving hole communicates with the groove, and the receiving hole may or may not penetrate the optical surface. The optical fiber is accommodated in the groove, and one end of the optical fiber is inserted into the accommodation hole. Since the diameter of the receiving hole is small (for example, 0.126 mm), cleaning tools such as brushes are not easy to penetrate into the receiving hole, so that it is not easy to clean when there is dross attached to the receiving hole, and the dander will cause light loss , thus affecting the coupling efficiency of the fiber optic connector.

Contents of the invention

In view of this, it is necessary to provide an optical fiber connector that can solve the above problems.

A fiber optic connector that accommodates optical fibers. The optical fiber connector includes a housing, the housing includes a top surface, and the housing forms a receiving space from the top surface. The housing also includes a bottom wall adjacent to the accommodation space and far away from the top surface, a groove, a first accommodation groove and a locking hole are formed on the bottom wall, the first accommodation groove communicates with the groove one by one and the The axis of the first receiving groove is aligned with the axis of the groove. The optical fiber connector further includes a buckle, the buckle includes a cantilever beam and a hook extending from the cantilever beam, the cantilever beam includes a bottom surface, and a second receiving groove is formed on the cantilever beam from the bottom surface. The buckle is accommodated in the accommodation space, the hook extends into the hole, and the buckle is fixed on the housing, the first accommodation groove and the second accommodation groove together form an accommodation hole, the groove The groove and the accommodating hole are jointly used for accommodating the optical fiber.

In this way, the optical fiber connector is divided into a housing and a buckle that are clamped to each other, and the accommodating hole for accommodating the optical fiber is divided into accommodating grooves respectively provided on the housing and the buckle, so that the dander in the accommodating hole is easily cleaned, ensuring Coupling efficiency of fiber optic connectors.

Description of drawings

FIG. 1 is a schematic perspective view of an optical fiber connector according to an embodiment of the present invention.

FIG. 2 is an exploded view of the optical fiber connector shown in FIG. 1 .

FIG. 3 is an exploded view from another angle of the optical fiber connector shown in FIG. 1 .

FIG. 4 is a cross-sectional view of the fiber optic connector in FIG. 1 along the IV-IV direction.

FIG. 5 is a cross-sectional view of the optical fiber connector in FIG. 1 along the V-V direction.

Description of main component symbols

The optical fiber connector 100 case 10 head 11 tail 13 first front face 101 second front face 102 first rear face 103 second rear face 104 top surface 105 bottom surface 106 storage space 107 bottom wall 110 groove 111 storage tank 113 card hole 114 Wedge 115 positioning structure 116 optical fiber 20 Fiber core 201 cladding 202 Buckle 30 cantilever beam 301 Hook 302 front surface 303 bottom surface 305 storage tank 307 Accommodating hole 309

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Please refer to FIGS. 1-3 , which disclose an optical fiber connector 100 according to an embodiment of the present invention for receiving an optical fiber 20 . The optical fiber connector 100 includes a housing 10 and a buckle 30 .

The casing 10 is a transparent casing, including a head 11 and a tail 13 that intersect vertically. Both the head 11 and the tail 13 are in the shape of a rectangular block. The head 11 includes a first front surface 101 , two second front surfaces 102 , and a first rear surface 103 parallel to each other. The tail portion 13 vertically extends from the middle of the first rear end surface 103 . Along a direction parallel to the first rear end surface 103 , both ends of the head 11 protrude relative to the tail 13 , so that the shape of the housing 10 is roughly T-shaped. The first front end surface 101 and the two second front end surfaces 102 are located on the side of the head 11 away from the tail portion 13, and the first front end surface 101 is located between the two second front end surfaces 102 and is relatively far away from the first rear end surface relative to the second front end surface 102. The direction of 103 protrudes. The tail portion 13 includes a second rear end surface 104 . The second rear end surface 104 is located on a side of the tail portion 13 away from the head 11 and is parallel to the first rear end surface. The head 11 and the tail 13 have a common top surface 105 and a bottom surface 106 . The top surface 105 is parallel to the bottom surface 106 and perpendicular to the first front surface 101 , the second front surface 102 , the first rear surface 103 , and the second rear surface 104 respectively.

An accommodating space 107 is recessed from the top surface 105 toward the bottom surface 106 on the casing 10 , and the accommodating space 107 extends from the second rear end surface 104 toward the first front end surface 101 and penetrates the first front end surface 101 . The accommodation space 107 is roughly T-shaped. The casing 10 also includes a bottom wall 110 adjacent to the bottom of the accommodation space 107 and away from the top surface 105 , a groove 111 extending from the second rear end surface 104 along a direction perpendicular to the second rear end surface 104 is formed on the bottom wall 110 . A receiving groove 113 extending perpendicular to the first front end surface 101 is formed on the bottom wall 110 from the first front end surface 101 , and a section perpendicular to the extending direction of the receiving groove 113 is semicircular. The accommodating groove 113 communicates with the groove 111 one by one and the axis of the accommodating groove 113 is aligned with the axis of the groove 111 . The diameter of the accommodating groove 113 is smaller than that of the groove 111 . The accommodating groove 113 and the groove 111 are used for accommodating the optical fiber 20 . In this embodiment, the cross section of the groove 111 is semicircular, and the number of the groove 111 , the receiving groove 113 and the optical fiber 20 are two.

Please refer to FIG. 2 and FIG. 4 together. A locking hole 114 is formed on the bottom wall 110 near the intersection of the groove 111 and the receiving groove 113 . In this embodiment, there are two locking holes 114 located on two sides of the groove 111 . The locking hole 114 penetrates through the bottom surface 106 . A wedge-shaped block 115 protrudes from one side wall of the locking hole 114 . The locking hole 114 and the wedge block 115 are used to cooperate with the buckle 30 so as to fix the optical fiber 20 in the optical fiber connector 100 .

The housing 10 also includes a positioning structure 116, and the positioning structure 116 is used for mating connection with the positioning structures of other optical fiber connectors. In this embodiment, the positioning structure 116 is two positioning holes extending from the first rear end surface 103 to the second front end surface 102 . In other implementations, the positioning structure 116 can also be a positioning column protruding from the second front end surface 102 .

Please refer to FIG. 5 together. The optical fiber 20 includes an optical fiber core 201 and a cladding layer 202 covering the optical fiber core 201 . At one end of the optical fiber 20 , the optical fiber core 201 is exposed and not covered by the cladding layer 202 . The diameter of the cladding layer 202 is equal to or slightly smaller than the diameter of the groove 111 , and the diameter of the optical fiber core 201 is equal to or slightly smaller than the diameter of the receiving groove 113 . The cladding layer 202 is located in the groove 111 , and the optical fiber core 201 is located in the receiving groove 113 .

Please refer to FIG. 2 and FIG. 3 , the buckle 30 is a cantilever beam buckle, which includes a cantilever beam 301 and two hooks 302 vertically extending from the cantilever beam 301 . The cantilever beam 301 includes a front surface 303 and a bottom surface 305 perpendicular to the front surface 303 . A receiving groove 307 corresponding to the receiving groove 113 on the bottom wall 110 is formed from the bottom surface 305 . The shape and size of the receiving groove 307 and the receiving groove 113 are the same. Please refer to FIG. 5 , when the buckle 30 is fastened on the housing 10 , the front surface 303 is coplanar with the first front end surface 101 , and the accommodation groove 113 and the accommodation groove 307 together form an accommodation hole 309 for accommodating the optical fiber 20 . The diameter of the receiving hole 309 is smaller than that of the groove 111 , and the receiving hole 309 penetrates the front surface 303 and the first front surface 101 .

Please refer to FIG. 4 , the hook 302 is roughly L-shaped. The hook 302 extends into the hole 114 and hooks the wedge block 115 , so as to fix the buckle 30 on the housing 10 . The cantilever beam 301 presses and fixes the optical fiber 20 in the groove 111 and the receiving hole 309 . Since the hook 302 will be elastically deformed when it is inserted into the hole 114, the buckle 30 is preferably made of a material with good toughness, such as polycarbonate (PC) plastic.

In the present invention, the optical fiber connector 100 is divided into the housing 10 and the buckle 30 which are engaged with each other, and the accommodating hole 309 for accommodating the optical fiber 20 is divided into accommodating grooves 113 and 307 respectively provided on the housing 10 and the buckle 30 , so that the accommodating hole 309 is easy to be cleaned, and dander is prevented from existing in the accommodating hole 309 .

In a word, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention, as long as within the spirit of the present invention, the above examples Appropriate changes and changes all fall within the scope of protection of the present invention.

Claims (10)

1. joints of optical fibre, for receiving optical fiber, these joints of optical fibre comprise housing, this housing comprises an end face, this housing is formed with spatial accommodation from this end face, and this housing also comprises this spatial accommodation adjacent and away from the diapire of end face, this diapire is formed with groove, it is characterized in that: this diapire is also formed with the first holding tank and hole clipping, this first holding tank communicates with this groove one_to_one corresponding and align with the axle center of this groove in the axle center of this first holding tank; These joints of optical fibre also comprise buckle, the grab that this buckle comprises semi-girder and extends from this semi-girder, and this semi-girder comprises basal surface, and this semi-girder is formed with the second holding tank from this basal surface; This buckle is contained in this spatial accommodation, and this grab stretches in this hole clipping, and is fixed on this housing by this buckle, and this first holding tank, this second holding tank form accommodation hole jointly, and this groove and this accommodation hole are jointly for receiving optical fiber.

2. the joints of optical fibre as claimed in claim 1, is characterized in that: the outstanding wedge be formed for hooking this grab in this hole clipping.

3. the joints of optical fibre as claimed in claim 1, is characterized in that: this buckle is made up of polycarbonate plastic.

4. the joints of optical fibre as claimed in claim 1, it is characterized in that: this housing also comprises a front end face, this front end face is crossing with this end face, and this semi-girder also comprises a front surface, this front surface is crossing with this basal surface and coplanar with this front end face, and this accommodation hole penetrates this front surface and this front end face.

5. the joints of optical fibre as claimed in claim 1, it is characterized in that: the diameter of this groove is greater than the diameter of this accommodation hole, this optical fiber comprises the clad of fiber cores and this fiber cores coated, this fiber cores is included in the exposed exposed part in one end of this optical fiber, this groove is for holding this clad, and this accommodation hole is for holding this exposed part.

6. the joints of optical fibre as claimed in claim 4, is characterized in that: this front end face is formed with the location structure for being located by connecting with other joints of optical fibre.

7. the joints of optical fibre as claimed in claim 6, is characterized in that: this location structure is pilot hole.

8. the joints of optical fibre as claimed in claim 6, is characterized in that: this location structure is reference column.

9. the joints of optical fibre as claimed in claim 1, is characterized in that: this housing is transparent shell.

10. the joints of optical fibre as claimed in claim 1, is characterized in that: this hole clipping is positioned at the both sides of this groove.