WO2021120879A1

WO2021120879A1 - Optical fiber adapter and optical fiber connection structure

Info

Publication number: WO2021120879A1
Application number: PCT/CN2020/124928
Authority: WO
Inventors: 张迪
Original assignee: 武汉邮埃服光电科技有限公司
Priority date: 2019-12-19
Filing date: 2020-10-29
Publication date: 2021-06-24
Also published as: CN110989096B; CN110989096A

Abstract

An optical fiber adapter and an optical fiber connection structure. Designing the contour of an input end accommodating cavity (111) and the contour of an output end accommodating cavity (211) as an integrated contour structure enables the input end accommodating cavity (111) to be in communication with and integrally formed with the output end accommodating cavity (211), preventing the potential occurrence of misalignment of axes caused by splicing, thereby reducing the risk of an optical component (400) being squeezed in the two accommodating cavities, and ensuring that the optical component (400) has an appropriate floating space in the accommodating cavities, ensuring the assembly security of the optical component (400), and improving the product yield. In addition, integrally forming and designing a collimating retaining member and a port structure supporting member can ensure J size in IEC-61754-20, thus obtaining a good butt joint efficiency when an optical fiber connector is plugged into an input end/output end of an adapter body, thereby preventing the generation of stress when the input end and/or output end are plugged, effectively preventing the loss of the connector from becoming larger, and improving the use reliability of a product.

Description

Optical fiber adapter and optical fiber connection structure

Technical field

The present invention relates to the technical field of optical fiber communication, in particular to an optical fiber adapter and an optical fiber connection structure.

Background technique

Existing fiber optic adapters (such as LC-type fiber optic adapters) cannot be manufactured by the same technology because the optical components (such as collimating sleeves) and the parts of the adapter body are different in function, material, or manufacturing process. The components must be installed inside the adapter body. In order to solve this problem, the current fiber optic adapter is configured to include two parts: input and output. After the optical components are installed in the cavity of the input and output, the adapter is ultrasonically welded. The input terminal and output terminal are welded together.

However, the above design has the following problems: when the adapter is fixed, the connector inserted into the adapter will exert a disengagement stress on the welding point under the action of the pre-tightening force, so that the two parts of the input end and the output end will work for a period of time. Separate after time. In view of this, the following types of solutions have been proposed on the market: (1) Separate the input end optical component holder, avoiding the technical problem of fixed connection between the input end and the output end by welding (Patent No.: CN207281343U or CN201876570U ); (2) The input end optical component holder and the output end optical component holder are separately arranged at the same time, avoiding the technical problem of fixed connection between the input end and the output end by welding (patent number: CN109884750A, CN102289039A or CN102520488B).

However, the above types of solutions also introduce two technical problems at the same time: (1) The input end optical component holder and the output end optical component holder are spliced by post-assembly. Due to manufacturing errors and assembly errors, the input end The optical component holder and the output end optical component holder are easily misaligned with each other, which reduces the floating space of the optical component in the cavity of the input end optical component holder and the output end optical component holder, or makes the collimating sleeve The barrel bears relatively large stress from the input end optical component holder and the output end optical component holder due to the misalignment of the axis, which may easily cause damage to the optical component; (2) Input end optical component holder and input end structural support The position and size of the parts are very difficult to control. When the connectors are mated, stress is likely to occur, resulting in greater connector loss (this problem is defined in detail in the IEC61754-20 Figure5-simplex adaptor interface chapter, which is related to the J size Installation of any feature in an indeterminate position will increase the uncertainty of the J dimension).

In view of this, there is a need to propose an optical fiber adapter in the market to solve the above-mentioned problems.

Summary of the invention

In order to solve the problem that the existing optical fiber adapter is prone to cause greater stress due to the misalignment of the axis during the installation of the optical component, thereby causing damage to the optical component, the purpose of the present invention is to provide an optical fiber adapter and an optical fiber connection structure.

The technical scheme adopted by the present invention is:

An optical fiber adapter, including an adapter body and an optical component, wherein the adapter body includes an adapter input end and an adapter output end, and an input end accommodating cavity and an input end stopper are provided at the adapter input end. An input end collimation holder, and an output end collimation holder including an output end accommodating cavity and an output end stopper is provided at the output end of the adapter;

The contour body of the input end accommodating cavity extends linearly toward the output side direction, and the contour body of the output end accommodating cavity extends linearly toward the input side direction, so that the two contours overlap to form an integrated contour structure for accommodating the optical component , And an opening structure for loading the optical component is provided on the integrated contour structure;

The input end stopper is disposed on the input side socket contour body of the input end accommodating cavity, the output end stopper is disposed on the output side socket contour body of the output end accommodating cavity, and the optical assembly It is installed in a space surrounded by the integrated contour structure, the input end stopper and the output end stopper.

Optimally, an input port structure support piece integrally formed with the input end collimation holder is also provided at the input end of the adapter;

And/or, an output port structure support piece integrally formed with the output end collimation holder is further provided at the output end of the adapter.

Further optimized, the input port structure support member and the output port structure support member are integrally formed through an integral molding process.

Optimally, the input end accommodating cavity and the output end accommodating cavity are both U-shaped accommodating grooves with top openings, and the opening structure is located on the top of the integrated contour structure and includes the U-shaped accommodating grooves. Communicating opening grooves and a cover plate for opening/closing the opening grooves;

The optical component is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure when the opening groove is opened, and then the cover plate is made to close the opening groove.

Optimally, the input end accommodating cavity and the output end accommodating cavity are both O-shaped accommodating cavities, and the opening structure is located at the input side end or the output side end of the integrated contour structure and includes an end surface with a corresponding end An opening and a stopper, wherein the stopper is the input end stopper or the output end stopper;

The optical component is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure through the corresponding end face opening in an unobstructed state before the stopper is set, and then the stopper is connected Set on the socket contour body on the corresponding side.

Specifically, the connection method used includes a mechanical buckle method, an adhesive method or a laser welding method.

The optical component is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure through the corresponding end surface opening in an unobstructed state before forming the stopper, and then the corresponding side socket is reshaped The contour body obtains the stopper formed at the corresponding end.

Specifically, the shaping method used includes a local hot melt shaping process, a local ultrasonic shaping process or a local laser cutting shaping process.

Optimally, the input end accommodating cavity and the output end accommodating cavity are both O-shaped accommodating cavities, and the opening structure is located at the input side end or the output side end of the integrated contour structure and includes an end surface with a corresponding end An opening and a stop using an elastic stop, wherein the stop is the input end stop or the output end stop;

The optical component is a ceramic collimating sleeve with optical function, and before the stopper is deformed and reset, it is inserted into the inside of the integrated contour structure through the end surface opening of the corresponding end in an open and unobstructed state, and then the stop The stopper automatically recovers from deformation, and a normal stopper at the corresponding end is obtained.

Another technical solution adopted by the present invention is:

An optical fiber connection structure, comprising a first optical fiber connector, a second optical fiber connector, and the aforementioned optical fiber adapter. The first optical fiber connector is inserted into the adapter input end of the optical fiber adapter, and the second optical fiber The connector is inserted into the adapter output end of the optical fiber adapter;

In the optical fiber adapter, the number of the adapter input end and the adapter output end is at least one, and they correspond to the optical component, the first optical fiber connector, and the second optical fiber connector, respectively. .

The beneficial effects of the present invention are:

(1) The present invention provides a novel optical fiber adapter and optical fiber connection structure that can avoid damage to optical components during assembly, that is, by designing the contour body of the input end accommodating cavity and the contour body of the output end accommodating cavity as The integrated contour structure allows the input end accommodating cavity and the output end accommodating cavity to be communicated and integrally formed, preventing possible axis misalignment due to splicing, thereby reducing the risk of optical components being squeezed in the two accommodating cavities , While ensuring that the optical components have a suitable floating space in the containing cavity, ensuring the assembly safety of the optical components, and improving the yield of products;

(2) Through the integrated design of the collimation holder of the input/output end and the structural support of the corresponding port, the J size in IEC-61754-20 and other similar standard requirements similar to this size can be guaranteed. When the optical fiber connector is inserted into the input/output end of the adapter body, a good docking efficiency can be obtained, and the input end and/or output end can be inserted to avoid stress, effectively prevent the loss of the connector from becoming larger, and improve the reliability of the product. Sex

(3) The optical fiber adapter also has the advantages of convenient assembly, strong practicability and simple structure, which is convenient for practical promotion and application.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram of the split structure of the first optical fiber adapter provided by the present invention.

Fig. 2 is a schematic partial cross-sectional view of the first optical fiber adapter provided by the present invention.

Fig. 3 is a schematic diagram of the transmission direction cross-sectional structure of the first optical fiber adapter provided by the present invention.

Fig. 4 is a schematic diagram of the split structure of the second optical fiber adapter provided by the present invention.

Fig. 5 is a schematic diagram of the split structure of the third optical fiber adapter provided by the present invention.

Fig. 6 is a schematic structural view of a third optical fiber adapter provided by the present invention in a transmission direction before being installed in an optical assembly.

Fig. 7 is a schematic structural view of a third optical fiber adapter provided by the present invention in a transmission direction after being installed in an optical component.

FIG. 8 is a schematic diagram of the transmission direction cross-sectional structure diagram of the fourth optical fiber adapter provided by the present invention before being installed in the optical assembly.

Fig. 9 is a schematic structural view of a fourth optical fiber adapter provided by the present invention in a transmission direction after being installed in an optical component.

Fig. 10 is a partially broken cross-sectional structural diagram of a fifth optical fiber adapter provided by the present invention.

Fig. 11 is a schematic structural view of a fifth optical fiber adapter provided by the present invention in a transmission direction after being installed in an optical component.

Fig. 12 is an exemplary diagram of an optical fiber connection structure provided by the present invention.

In the above drawings: 10-adapter input end; 11-input end collimation holder; 111-input end accommodating cavity; 112-input end stopper; 12-input port structure support; 20-adapter output end; 21 -Output end collimation holder; 211-Output end accommodating cavity; 212-Output end stopper; 22-Output port structure support; 31-Open slot; 32-Cover plate; 40-Body structure support; 50- Hot-melt shaping tool; 400-optical component; 501-first optical fiber connector; 502-second optical fiber connector.

Detailed ways

The present invention will be further described below in conjunction with the drawings and specific embodiments. It should be noted here that although the description of these embodiments is used to help understand the present invention, it does not constitute a limitation to the present invention. The specific structural and functional details disclosed herein are only used to describe example embodiments of the present invention. However, the present invention may be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

It should be understood that although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, the first unit may be referred to as the second unit, and the second unit may be referred to as the first unit similarly, without departing from the scope of the exemplary embodiment of the present invention.

It should be understood that the term "and/or" that may appear in this text is only an association relationship describing associated objects, which means that there can be three relationships. For example, A and/or B can mean that there is A alone, There are B alone, and there are three situations of A and B at the same time; for the term "/ and" that may appear in this article, it describes another related object relationship, indicating that there can be two relationships, for example, A/ and B, you can Means: A is alone, A and B are alone; In addition, for the character "/" that may appear in this article, it generally means that the associated objects before and after are in an "or" relationship.

It should be understood that when a unit is referred to herein as being "connected", "connected" or "coupled" to another unit, it can be directly connected or coupled to the other unit, or intermediate units may exist. In contrast, when a unit is referred to herein as being "directly connected" or "directly coupled" with another unit, it means that there is no intermediate unit. In addition, other words used to describe the relationship between units should be interpreted in a similar way (for example, "between" and "directly between", "adjacent" and "directly adjacent", etc. Wait).

It should be understood that the terms used herein are only used to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. If used herein, the singular forms "a", "an" and "the" are intended to include plural forms, unless the context clearly indicates the opposite. It should also be understood that when the terms "include", "includes", "includes" and/or "includes" are used in this document, they specify the characteristics, integers, steps, operations, units and/or components of the statement. Existence, and does not exclude the existence or addition of one or more other features, quantities, steps, operations, units, components and/or their combinations.

It should be understood that it should also be noted that in some alternative embodiments, the functions/acts that appear may be different from the order in which they appear in the drawings. For example, depending on the functions/actions involved, it may actually be executed concurrently in nature, or sometimes two diagrams shown in succession may be executed in reverse order.

It should be understood that specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, those of ordinary skill in the art should understand that the exemplary embodiments can be implemented without these specific details. For example, the system can be shown in a block diagram to avoid unnecessary details to make the example unclear. In other instances, well-known procedures, structures, and techniques may not be shown in unnecessary details to avoid making the example embodiments unclear.

It should be understood that the optical path between the input end and the output end in the description of the present invention is reversible. Under certain conditions, the input end can be used as an output end, while the output end can be used as an input end.

Example one

As shown in Figures 1 to 3, the first optical fiber adapter provided in this embodiment includes an adapter body and an optical assembly 400, wherein the adapter body includes an adapter input end 10 and an adapter output end 20, and The adapter input end 10 is provided with an input end collimation holder 11 including an input end accommodating cavity 111 and an input end stopper 112, and the adapter output end 20 is provided with an output end accommodating cavity 211 and an output end. The output end of the stopper 212 is aligned with the holder 21; the contour of the input end accommodating cavity 111 extends linearly toward the output side, and the contour of the output end accommodating cavity 211 extends linearly toward the input side, so that the two contours The integrated contour structure for accommodating the optical component 400 is formed by recombination, and an opening structure for loading the optical component 400 is provided on the integrated contour structure; the input end stopper 112 is arranged at On the input side socket profile of the input end accommodating cavity 111, the output end stopper 212 is provided on the output side socket profile of the output end accommodating cavity 211, and the optical assembly 400 is installed on the In the space enclosed by the integrated contour structure, the input end stopper 112 and the output end stopper 212.

As shown in Figures 1 to 3, in the specific structure of the optical fiber adapter, the optical assembly 400, the adapter input end 10, and the adapter output end 20 are all essential components of the optical fiber adapter. The optical component 400 is an optical component with optical functions, which can be, for example, a collimating sleeve configured as a ferrule collimation, as shown in FIG. 1; the adapter input end 10 is used to provide an external optical fiber connector that can be inserted The input side socket; the input end collimation holder 11 (that is, the input end optical assembly holder) is used to surround the input side end of the optical assembly 400 with the input end accommodating cavity 111 inside, and use the The input end stopper 112 prevents the input side end from escaping through the input side socket; the adapter output end 20 is used to provide an output side socket that can be inserted by an external optical fiber connector; the output end is aligned and maintained The member 21 (ie, the output end optical assembly holder) is used to surround the output side end of the optical assembly 400 with the output end accommodating cavity 211 inside, and use the output end stopper 212 to block the output side end The part escapes through the output-side socket.

As shown in FIG. 3, since the contour body of the input end accommodating cavity 111 and the contour body of the output end accommodating cavity 211 are an integrated contour structure formed by extension and overlap, the input end accommodating cavity 111 and The output accommodating cavity 211 is connected and integrally formed to prevent possible axis misalignment due to splicing, thereby reducing the risk of the optical component 400 being squeezed in the two accommodating cavities, while ensuring the optical The component 400 has a suitable floating space in the containing cavity to ensure the assembly safety of the optical component and improve the yield of the product. In addition, since the integrated contour structure is provided with an opening structure for loading the optical component 400, the optical component 400 can be conveniently installed into the integrated contour structure when the opening is opened, and then closed. Or reduce the opening to ensure that the installed optical assembly 400 is confined in the space enclosed by the integrated contour structure, the input end stopper 112 and the output end stopper 212, and cannot escape , To ensure normal use.

Optimally, an input port structure support 12 integrally formed with the input end collimation holder 11 is also provided at the adapter input end 10; and/or, the adapter output end 20 is also provided with The output port structure support member 22 is formed integrally with the output end collimation holder 21. As shown in FIG. 3, the input port structure support 12 and the output port structure support 22 are provided at the same time, wherein the input port structure support 12 is used to form an input port of a pluggable optical fiber connector, It can be realized by using existing structures to meet the female or male forms of various types of connectors; the output port structure support 22 is used to form the output port of a pluggable optical fiber connector, and it can also adopt existing There are structural realizations to meet the female or male form of various types of connectors. Since the input end collimation holder 11 and the input port structural support 12 are integrally formed, it can ensure the J size in IEC-61754-20 and other similar standards similar to this size requirement, so that the optical fiber When the connector is inserted into the input end of the adapter body, good docking efficiency is obtained; and since the output end collimation holder 21 and the output port structure support 22 are integrally formed, it can also ensure that the IEC-61754-20 The J size enables good docking efficiency when the optical fiber connector is inserted into the output end of the adapter body. As a result, stress can be avoided when the input end and/or the output end are inserted, and the loss of the connector can be effectively prevented, and the use reliability of the product can be improved. Further optimized, the input port structure support member 12 and the output port structure support member 22 are integrally formed through an integral molding process, so that the entire adapter body can be integrally formed, which facilitates processing and installation, and avoids splicing dislocation.

Optimally, the input end accommodating cavity 111 and the output end accommodating cavity 211 are both U-shaped accommodating grooves with a top opening structure, and the opening structure is located on the top of the integrated contour structure and includes the U The opening groove 31 communicating with the type containing groove and the cover plate 32 for opening/closing the opening groove 31; the optical assembly 400 is a ceramic collimating sleeve with optical function, and is inserted into the opening groove 31 when the opening groove 31 is opened. Inside the integrated contour structure, the cover plate 32 is then made to close the opening groove 31. As shown in FIG. 1, through the design of the opening groove 31 and the cover plate 32, the optical assembly 400 can be easily placed into the U-shaped receiving groove from the outside, which facilitates product assembly and ensures The optical assembly 400 is in the internal cavity of the adapter body without escaping. Specifically, as shown in FIG. 1, the opening groove 31 is a cross-shaped opening groove, the cover plate 32 is a cross-shaped cover plate that cooperates with the cross-shaped opening groove, and the cover of the cover plate 32 is The bottom surface of the board is configured as a curved surface that matches with the outer circumference of the optical assembly 400.

In summary, using the first optical fiber adapter provided in this embodiment has the following technical effects:

(1) This embodiment provides a new type of fiber optic adapter that can avoid damage to optical components during assembly, that is, by designing the contour body of the input end accommodating cavity and the contour body of the output end accommodating cavity into an integrated contour structure , The input end accommodating cavity and the output end accommodating cavity can be connected and integrally formed, preventing possible shaft center misalignment due to splicing, thereby reducing the risk of optical components being squeezed in the two accommodating cavities, while ensuring optical The components have a suitable floating space in the accommodating cavity to ensure the assembly safety of the optical components and improve the yield of products;

Example two

As shown in Figure 4, this embodiment provides another simplified structure of the optical fiber adapter based on the technical solution of the first embodiment, which defaults to the settings of the input port structure support 12 and the output port structure support 22. Only one circumferential body structure support 40 is added to ensure the stability of the integrated contour structure.

The technical effect of this embodiment can be directly derived by referring to the technical effect of the first embodiment, and will not be repeated here.

Example three

As shown in Figures 5-7, this embodiment provides another optical fiber adapter based on the technical solution of the first embodiment, which is different from the optical fiber adapter described in the first embodiment in that: the input end accommodating cavity 111 and the output end accommodating cavity 211 are both O-shaped accommodating cavities, and the opening structure is located at the input side end or the output side end of the integrated profile structure and includes an end face opening and a stopper with a corresponding end, wherein , The stopper is the input end stopper 112 or the output end stopper 212; the optical assembly 400 is a ceramic collimating sleeve with optical function, and passes through the corresponding The end face opening at the end and in an unobstructed state is inserted into the inside of the integrated contour structure, and then the stopper is connected and arranged on the socket contour body on the corresponding side. As shown in Figures 5-7, for example, before the optical assembly 400 is provided with the output end stopper 212, since the end surface opening at the output end is in an unobstructed state, it can be easily inserted into the end surface opening and The output end accommodating cavity 211 achieves the purpose of being inserted into the O-shaped accommodating cavity from the outside, and then the output end stopper 212 acting as a cover plate is connected to make the optical assembly 400 in place. The adapter body does not escape in the internal cavity, thereby providing another convenient manufacturing method and assembly structure. Specifically, the used connection method may include, but is not limited to, existing connection methods such as mechanical buckle method, glue method, or laser welding method.

Example four

As shown in Figures 8-9, this embodiment also provides another fiber optic adapter based on the technical solution of the first embodiment. The difference from the fiber optic adapter of the first embodiment is that the input end contains The cavity 111 and the output end accommodating cavity 211 are both O-shaped accommodating cavities, and the opening structure is located at the input side end or the output side end of the integrated profile structure and includes an end face opening and a stopper at the corresponding end, Wherein, the stopper is the input end stopper 112 or the output end stopper 212; the optical assembly 400 is a ceramic collimating sleeve with optical function, and passes through before forming the stopper The corresponding end face opening in the unobstructed state is inserted into the integrated contour structure, and then the socket contour body on the corresponding side is reshaped to obtain the stopper formed at the corresponding end. As shown in FIGS. 8-9, for example, before the optical assembly 2 is shaped to obtain the output end stopper 212, since the end surface opening at the output end is in an unobstructed state, it can be easily inserted into the end surface opening in sequence. And the output end accommodating cavity 211 to achieve the purpose of being inserted into the O-shaped accommodating cavity from the outside, and then the output end stopper 212 acting as a cover plate is reshaped to make the optical assembly 400 in The adapter body does not escape in the internal cavity, thereby providing another convenient manufacturing method and assembly structure. Specifically, the used shaping method may include, but is not limited to, existing shaping methods such as a local hot melt shaping process, a local ultrasonic shaping process or a local laser cutting shaping process, and then the stopper formed at the output end is obtained.

Example five

As shown in Figures 10-11, this embodiment also provides another fiber optic adapter based on the technical solution of the first embodiment. The difference from the fiber optic adapter of the first embodiment is that the input end contains The cavity 111 and the output end accommodating cavity 211 are both O-shaped accommodating cavities, and the opening structure is located at the input side end or the output side end of the integrated profile structure and includes an end face opening with a corresponding end and adopts an elastic stopper The stopper, wherein the stopper is the input end stopper 112 or the output end stopper 212; the optical assembly 400 is a ceramic collimating sleeve with optical function, and is Before the deformation of the stopper is reset, it is inserted into the integrated contour structure through the end surface opening of the corresponding end in an open and unobstructed state, and then the stopper is automatically deformed to obtain a normal stopper at the corresponding end. As shown in Figures 10-11, for example, before the output end stopper 212 deforms and resets the optical assembly 400, since the end surface opening at the output end is in an open and unobstructed state, it can be easily inserted in sequence. The end surface opening and the output end accommodating cavity 211 realize the purpose of being inserted into the O-shaped accommodating cavity from the outside, and then the output end stopper 212 will deform and reset and act like a cover plate, resulting in an end surface opening It will be reduced so that the optical component 400 is placed in the internal cavity of the adapter body without escaping, thereby providing another convenient manufacturing method and assembly structure.

Example Six

As shown in FIG. 12, this embodiment provides a new type of optical fiber connection structure based on the technical solutions of Embodiments 1 to 5, including a first optical fiber connector 501, a second optical fiber connector 502, and a In any one of the fiber optic adapters, the first fiber optic connector 501 is inserted into the adapter input end 20 of the fiber optic adapter, and the second fiber optic connector 502 is inserted into the adapter output end 30 of the fiber optic adapter; In the optical fiber adapter, the number of the adapter input end 10 and the adapter output end 20 are at least one, and they are respectively connected to the optical assembly 400, the first optical fiber connector 501, and the second optical fiber The head 502 has a one-to-one correspondence. As shown in Figure 12, two bundles of optical fibers can be connected during the long-distance laying process to meet market application requirements.

The technical effects of this embodiment can be directly derived by referring to the technical effects of the first to fourth embodiments, and will not be repeated here.

The multiple embodiments described above are merely illustrative. If it relates to a unit described as a separate component, it may or may not be physically separate; if it relates to a component displayed as a unit, it may or may not be physically separate. It may not be a physical unit, that is, it may be located in one place, or it may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.

The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that: The recorded technical solutions shall be modified or some of the technical features shall be equivalently replaced. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Finally, it should be noted that the present invention is not limited to the above-mentioned optional embodiments, and anyone can derive other products in various forms under the enlightenment of the present invention. The above-mentioned specific embodiments should not be construed as limiting the scope of protection of the present invention, and the scope of protection of the present invention should be defined in the claims, and the description can be used to interpret the claims.

Claims

An optical fiber adapter, characterized in that it comprises an adapter body and an optical assembly (400), wherein the adapter body includes an adapter input end (10) and an adapter output end (20), and the adapter input end (10) ) Is provided with an input end collimation holder (11) that includes an input end accommodating cavity (111) and an input end stopper (112), and an output end accommodating cavity is provided at the adapter output end (20) (211) and the output end collimation holder (21) of the output end stopper (212);

The contour of the input accommodating cavity (111) extends linearly toward the output side, and the contour of the output accommodating cavity (211) extends linearly toward the input side, so that the two contours are combined to form the optical An integrated contour structure of the component (400), and an opening structure for loading the optical component (400) is provided on the integrated contour structure;

The input end stopper (112) is arranged on the input side socket profile of the input end accommodating cavity (111), and the output end stopper (212) is arranged on the output end accommodating cavity (211) The optical assembly (400) is installed in the space enclosed by the integrated contour structure, the input end stopper (112) and the output end stopper (212) in.
The optical fiber adaptor according to claim 1, characterized in that: an input port structure support (11) integrally formed with the input end collimation holder (11) is also provided at the input end (10) of the adaptor. 12);

And/or, an output port structure support (22) integrally formed with the output end collimation holder (21) is further provided at the output end (20) of the adapter.
The optical fiber adapter according to claim 2, wherein the input port structure support member (12) and the output port structure support member (22) are integrally formed by an integral molding process.
The fiber optic adapter according to claim 1, wherein the input end receiving cavity (111) and the output end receiving cavity (211) are both U-shaped receiving grooves with top openings, and the opening structure Located on the top of the integrated contour structure and including an opening groove (31) communicating with the U-shaped receiving groove and a cover plate (32) for opening/closing the opening groove (31);

The optical component (400) is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure when the opening groove (31) is opened, and then the cover plate (32) is closed. The opening slot (31).
The optical fiber adapter according to claim 1, characterized in that: the input end accommodating cavity (111) and the output end accommodating cavity (211) are both O-shaped accommodating cavities, and the opening structure is located in the integral body. The input side end or the output side end of the contoured structure includes an end face opening of the corresponding end and a stopper, wherein the stopper is the input end stopper (112) or the output end stop Pieces (212);

The optical component (400) is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure through the corresponding end surface opening in an unobstructed state before setting the stopper, and then the stop The stopper is connected and arranged on the socket contour body on the corresponding side.
The optical fiber adapter according to claim 5, wherein the connection method used includes a mechanical buckle method, an adhesive method or a laser welding method.
The optical fiber adapter according to claim 1, characterized in that: the input end accommodating cavity (111) and the output end accommodating cavity (211) are both O-shaped accommodating cavities, and the opening structure is located in the integral body. The input-side end or the output-side end of the contoured structure includes an end face opening of the corresponding end and a stopper, wherein the stopper is the input end stopper (112) or the output end stopper Pieces (212);

The optical component (400) is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure through the corresponding end surface opening in an unobstructed state before forming the stopper, and then the corresponding shape On the side of the socket profile body, a stop formed at the corresponding end is obtained.
8. The optical fiber adapter according to claim 7, wherein the shaping method used includes a local hot melt shaping process, a local ultrasonic shaping process or a local laser cutting shaping process.
The optical fiber adapter according to claim 1, characterized in that: the input end accommodating cavity (111) and the output end accommodating cavity (211) are both O-shaped accommodating cavities, and the opening structure is located in the integral body. The input side end or the output side end of the contoured structure includes an end face opening of the corresponding end and a stopper using an elastic stopper, wherein the stopper is the input end stopper (112) or The output stopper (212);

The optical component (400) is a ceramic collimating sleeve with optical function, and is inserted into the integrated contour structure through an end surface opening of the corresponding end and in an open and unobstructed state before the deformation of the stopper is reset, Then, the stopper is automatically restored to deformation, and a normal stopper at the corresponding end is obtained.
An optical fiber connection structure, characterized in that it comprises a first optical fiber connector (501), a second optical fiber connector (502) and the optical fiber adapter according to any one of claims 1-9, and the first optical fiber is connected The head (501) is inserted into the adapter input end (10) of the optical fiber adapter, and the second optical fiber connector (502) is inserted into the adapter output end (20) of the optical fiber adapter;

In the optical fiber adapter, the number of the adapter input end (10) and the adapter output end (20) is at least one, and they are connected to the optical component (400) and the first optical fiber connector ( 501) and the second optical fiber connector (502) have a one-to-one correspondence.