Intensive beam expanding connector

Abstract

The invention discloses an intensive beam expanding connector. The intensive beam expanding connector comprises a male head assembly, a female head assembly and a connecting assembly located between the male head assembly and the female head assembly. The male head assembly comprises a male head shell and a male head insertion core arranged in the male head shell, the female head assembly comprises a female head shell and a female head insertion core arranged in the female head shell, a first optical fiber assembly is arranged in the male head insertion core, a second optical fiber assembly is arranged in the female head insertion core, and the first optical fiber assembly and the second optical fiber assembly are arranged in the female head shell. The male head insertion core and the female head insertion core are both inserted into the connecting assembly, and the male head insertion core and the female head insertion core are arranged at an interval. The male head assembly and the female head assembly are inserted into the connecting sleeve at the same time, a gap is reserved between the male head assembly and the female head assembly after insertion, contact is avoided, compared with an existing contact type structure, end face abrasion of the male head insertion core and the female head insertion core is avoided, and the service life is prolonged. The connection relation between the optical fiber assembly and the insertion core is accurate, light beam coupling can be better achieved, the expansibility is high, and the expansion can exceed 120 cores.

Description

Technical Field

[0001] The present invention relates to the field of connectors, and more particularly to a dense expanded beam connector. Background Art

[0002] During the production of the commonly used MPO connectors (multi-fiber arrangement connectors), it is difficult to make the polishing parameters of the fiber end faces consistent, resulting in poor interchangeability of the connectors. When the connectors are used in pairs, all fiber end faces need to be in close physical contact at the same time to work properly, because the end faces must be clean and free of any dust particles, otherwise the optical signal will be blocked or even the optical interface will be damaged, causing the connector to not work properly. At the same time, if air gaps are generated, it will cause multiple reflections of light between the fiber end faces (Fabry-Perot cavity), which will also seriously affect the stability of the signal.

[0003] To ensure that all fiber end faces are in close contact at the same time, a large working pressure must be applied to the fiber connector. Even so, it is still impossible to ensure that all fibers are in contact at the same time. At the same time, due to this design, it is more likely to cause damage to the end face of the traditional MPO connector. Therefore, traditional MPO connectors must be regularly inspected and maintained during application to ensure reliable transmission of the link, which invisibly increases the application cost. Summary of the invention

[0004] The object of the present invention is to provide a dense expanded beam connector to solve the technical problems existing in the above-mentioned background technology.

[0005] The technical solution of the present invention provides a dense expanded beam connector, comprising a male component, a female component and a connecting component located between the male component and the female component;

[0006] The male component includes a male shell and a male ferrule arranged in the male shell, and the female component includes a female shell and a female ferrule arranged in the female shell. The male ferrule is provided with an optical fiber component 1, and the female ferrule is provided with an optical fiber component 2. The male ferrule and the female ferrule are both inserted into the connection component, the male ferrule and the female ferrule are spaced apart, and the light beams of the optical fiber component 1 and the optical fiber component 2 are coupled.

[0007] In a preferred embodiment, the connection assembly includes a connection sleeve, and a gasket is provided in the middle of the connection sleeve to space the male ferrule and the female ferrule.

[0008] In a preferred embodiment, a limit guide pin is provided on the male ferrule, and a limit socket is provided on the female ferrule corresponding to the limit guide pin.

[0009] In a preferred embodiment, outer surfaces of the male ferrule and the female ferrule are coated with an anti-reflection coating.

[0010] In a preferred embodiment, the optical fiber assembly includes a common optical fiber and a microlens connected to the common optical fiber, and the common optical fiber and the microlens are fused.

[0011] In a preferred embodiment, the optical fiber assembly 2 includes a common optical fiber 2 and a micro lens 2 connected to the common optical fiber 2, and the common optical fiber 2 and the micro lens 2 are fused.

[0012] In a preferred embodiment, the micro lens 1 and the micro lens 2 are respectively glued and fixed to the male ferrule and the female ferrule.

[0013] In a preferred embodiment, the male ferrule and the female ferrule are both provided with snap grooves, and a snap piece is correspondingly provided in the connected component. When the male ferrule and the female ferrule are inserted into the connecting component, the snap piece is snapped into the snap groove.

[0014] The beneficial effects of the technical solution of the present invention are:

[0015] The male and female components are inserted into the connector sleeve at the same time. After insertion, there is a gap between the two, and they do not make contact. Compared with the existing contact structure, this avoids wear on the end faces of the male and female ferrules, and extends the service life. At the same time, it is insensitive to dust and is almost unaffected by the cleanliness of the installation environment. The connection between the optical fiber component and the ferrule is accurate, which facilitates better beam coupling and has strong scalability. The expansion can exceed 120 cores. At the same time, it can realize rapid replacement between different optical fibers, with good repeatability and strong interchangeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention,

[0017] Figure 2 This is a schematic diagram of the male head component and the female head component docking of the present invention.

[0018] Figure 3 This is a diagram showing the position relationship between the buckle piece and the buckle slot of the present invention.

[0019] Figure 4 This is a diagram of the optical path structure of the present invention.

[0020] Explanation of the accompanying drawings: 1 male assembly, 11 male shell, 12 male ferrule, 13 limiting guide pin, 2 female assembly, 21 female shell, 22 female ferrule, 23 limiting jack, 3 optical fiber assembly one, 31 ordinary optical fiber one, 32 microlens one, 4 optical fiber assembly two, 41 ordinary optical fiber two, 42 microlens two, 5 connecting sleeve, 51 gasket, 6 snap-on piece, 7 snap-on groove. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0022] like Figure 1-3 As shown, the technical solution of the present invention provides a dense expanded beam connector, including a male component 1, a female component 2, and a connection component located between the male component 1 and the female component 2. The male component 1 includes a male housing 11 and a male ferrule 12 disposed in the male housing 11, the female component 2 includes a female housing 21 and a female ferrule 22 disposed in the female housing 21, an optical fiber component 1 3 is disposed in the male ferrule 12, an optical fiber component 2 4 is disposed in the female ferrule 22, the male ferrule 12 and the female ferrule 22 are both inserted into the connection component, the male ferrule 12 and the female ferrule 22 are spaced apart, and the optical fiber components 1 3 and 2 4 are coupled.

[0023] The connection assembly includes a connection sleeve 5, and the male component 1 and the female component 2 are inserted into the connection sleeve 5 at the same time. After the insertion, there is a gap between the two, and they do not contact each other. Compared with the existing contact structure, the end surface wear of the male plug core 12 and the female plug core 22 is avoided, and the service life is extended. At the same time, it is not sensitive to dust and is almost not affected by the cleanliness of the installation environment.

[0024] The middle of the connecting sleeve 5 is provided with a spacer 51 for spacing the male ferrule 12 and the female ferrule 22. The spacer 51 is located between the male ferrule 12 and the female ferrule 22, and its width is set according to requirements. The gap under the minimum insertion loss is selected as the thickness of the spacer 51 to avoid affecting the beam coupling effect of the optical fiber component 1 3 and the optical fiber component 2 4. In addition to providing a physical spacer 51, a non-physical gap of a required thickness can also be reserved by designing an adapter.

[0025] The male ferrule 12 is provided with a limit guide pin 13, and the female ferrule 22 is provided with a limit jack 23 corresponding to the limit guide pin 13. When the male ferrule 12 and the female ferrule 22 are matched and connected, the limit guide pin 13 is inserted into the limit jack 23, and the coaxiality of the optical fiber component 1 3 and the optical fiber component 2 4 is realized under the action of the limit guide pin 13, and the coupling connection of the light beam is realized.

[0026] The outer surfaces of the male ferrule 12 and the female ferrule 22 are coated with an anti-reflection coating to prevent the end surfaces of the male ferrule 12 and the female ferrule 22 from reflecting light and affecting the light beam coupling effect.

[0027] The optical fiber assembly 13 includes a common optical fiber 131 and a micro lens 132 connected to the common optical fiber 131, and the common optical fiber 131 is fused with the micro lens 132. The optical fiber assembly 24 includes a common optical fiber 241 and a micro lens 242 connected to the common optical fiber 241, and the common optical fiber 241 is fused with the micro lens 242. The micro lens 132 and the micro lens 242 are respectively glued and fixed to the male ferrule 12 and the female ferrule 22. The optical path structure diagram is shown in FIG. Figure 4 As shown. The optical fiber components are arranged on the ferrule, and a non-contact coupling method is adopted to make the connection between the optical fiber components and the ferrule accurate, which is convenient for better beam coupling and has strong scalability, and can be expanded to more than 120 cores.

[0028] The male ferrule 12 and the female ferrule 22 are both provided with a snap groove 7, and the connection component is correspondingly provided with a snap piece 6. When the male ferrule 12 and the female ferrule 22 are inserted into the connection component, the snap piece 6 is snapped with the snap groove 7. The snap piece 6 has a certain resilience, and the snap piece 6 cooperates with the snap groove 7 to achieve the fixation between the male component 1, the female component 2 and the connection component to avoid slipping, so as to ensure that the distance between the male ferrule 12 and the female ferrule 22 is constant. At the same time, an inclined surface is provided in the snap groove 7, which can be disassembled after fixation, and is convenient to use.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A dense expanded beam connector, characterized in that: It includes a male component, a female component and a connecting component located between the male component and the female component; The male component includes a male shell and a male ferrule arranged in the male shell, and the female component includes a female shell and a female ferrule arranged in the female shell. The male ferrule is provided with an optical fiber component 1, and the female ferrule is provided with an optical fiber component 2. The male ferrule and the female ferrule are both inserted into the connection component, the male ferrule and the female ferrule are spaced apart, and the light beams of the optical fiber component 1 and the optical fiber component 2 are coupled.

2. A dense expanded beam connector according to claim 1, characterized in that: The connection assembly comprises a connection sleeve, and a gasket is arranged in the middle of the connection sleeve to space the male plug core and the female plug core.

3. A dense expanded beam connector according to claim 1, characterized in that: The male plug core is provided with a limit guide pin, and the female plug core is provided with a limit socket corresponding to the limit guide pin.

4. The intensive expanded beam connector according to claim 1, characterized in that: The outer surfaces of the male ferrule and the female ferrule are coated with an anti-reflection coating.

5. The intensive expanded beam connector according to claim 1, characterized in that: The optical fiber component 1 includes a common optical fiber 1 and a micro lens 1 connected to the common optical fiber 1, and the common optical fiber 1 and the micro lens 1 are fused.

6. A dense expanded beam connector according to claim 5, characterized in that: The optical fiber assembly 2 includes a common optical fiber 2 and a micro lens 2 connected to the common optical fiber 2, and the common optical fiber 2 is fused with the micro lens 2.

7. A dense expanded beam connector according to claim 6, characterized in that: The first micro lens and the second micro lens are respectively glued and fixed to the male plug core and the female plug core.

8. The intensive expanded beam connector according to claim 6, characterized in that: The male ferrule and the female ferrule are both provided with snap grooves, and a snap piece is correspondingly provided in the connection component. When the male ferrule and the female ferrule are inserted into the connection component, the snap piece is snapped with the snap groove.

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