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EP-4194912-B1 - OPTICAL FIBER ADAPTER, OPTICAL FIBER CONNECTOR PLUG, CONNECTOR ASSEMBLY, AND COMMUNICATION DEVICE

EP4194912B1EP 4194912 B1EP4194912 B1EP 4194912B1EP-4194912-B1

Inventors

  • LI, Xiupeng
  • PENG, Shangjun
  • LI, YUANYUAN

Dates

Publication Date
20260506
Application Date
20210323

Claims (11)

  1. An optical fiber adapter (200), wherein the optical fiber adapter comprises: an adapter body (210), wherein the adapter body is provided with a first slot (2106), and the first slot is configured to plug an optical fiber connector plug (100); a first locking structure (230), wherein the first locking structure is disposed on the adapter body and is configured to cooperate with a second locking structure (126) of the optical fiber connector plug to secure the optical fiber adapter to the optical fiber connector plug; and a pressing member (240), wherein the pressing member is connected to the adapter body, and the pressing member can slide relative to the adapter body and is configured to drive the first locking structure to be unlocked from the second locking structure; wherein the optical fiber adapter is characterized in that the optical fiber adapter further comprises a sliding assembly, the sliding assembly is slidably connected to the outer surface of the adapter body, and the sliding assembly is configured to: when the sliding assembly does not slide relative to the adapter body, prevent the first locking structure from being unlocked from the second locking structure.
  2. The optical fiber adapter according to claim 1, wherein an outer surface (2104) of the adapter body is provided with a mounting groove (260), and the mounting groove penetrates through the outer surface and an inner surface (2103) of the adapter body and is communicated with the first slot; and the mounting groove comprises a first groove wall (2601) and a second groove wall (2602) that are disposed opposite to each other in an axial direction of the adapter body, the first groove wall is disposed close to a plug interface (2109) of the first slot relative to the second groove wall, and the first locking structure has elasticity and is connected to the first groove wall; or the first locking structure passes through the mounting groove, and the first locking structure can move relative to the mounting groove in a radial direction of the adapter body.
  3. The optical fiber adapter according to claim 2, wherein the first locking structure comprises a first part (231) and a second part (232), wherein the first part is elastically connected to the first groove wall and extends in the axial direction of the adapter body, the second part is bent and connected to one end of the first part away from the first groove wall, the second part extends toward an interior of the first slot and forms an included angle with the first part, and at least a part of the second part is located inside the first slot; and a surface of the second part facing the second groove wall is a first matching surface (233), and the first matching surface is configured to abut against a second matching surface (1263) of the second locking structure.
  4. The optical fiber adapter according to claim 2, wherein the first locking structure comprises a moving part (235) and a contact part (236), and the contact part is bent and connected to one end of the moving part; the moving part passes through the mounting groove and can move relative to the mounting groove in the radial direction of the adapter body, and the contact part is configured to abut against the pressing member; and a surface of the moving part facing a ferrule sleeve is a first matching surface (233), and the first matching surface is configured to abut against a second matching surface (1263) of the second locking structure.
  5. The optical fiber adapter according to claim 3, wherein the pressing member is sleeved and slidably connected to the inner surface of the adapter body; and the pressing member comprises a pressing part (241) and a sliding part (242), the sliding part is connected to one end of the pressing part, the pressing part is located outside the adapter body, and the sliding part can slide relative to the adapter body to press against the second locking structure to drive the second locking structure to be opened.
  6. The optical fiber adapter according to claim 5, wherein the adapter body is provided with a first stop structure, the sliding part is provided with a second stop structure, and the first stop structure cooperates with the second stop structure, to prevent the pressing member from being removed from the adapter body from one end that is of the adapter body and at which the plug interface of the first slot is disposed.
  7. The optical fiber adapter according to any one of claims 1-6, wherein the sliding assembly comprises a sliding sleeve (282) and an elastic component (281), the sliding sleeve is sleeved at a periphery of the adapter body and abuts against the pressing member, the sliding sleeve is configured to slide relative to the adapter body in a direction away from the pressing member under an action of a thrust force of the pressing member, the sliding sleeve and the adapter body together form accommodating space for accommodating the elastic component, and the elastic component is accommodated in the accommodating space and elastically abuts against the sliding sleeve and the adapter body.
  8. The optical fiber adapter according to claim 7, wherein an inner surface (2821) of the sliding sleeve is provided with a contact region (2822) and a depression region (2823) connected to the contact region, the depression region is located at one end of the sliding sleeve facing the pressing member, the contact region is configured to tightly press the second locking structure when the sliding sleeve does not slide relative to the adapter body, and the depression region is configured to: when the sliding sleeve slides relative to the adapter body in the direction away from the pressing member, provide space for generating elastic deformation for the second locking structure.
  9. The optical fiber adapter according to claim 7, wherein an elastic structure (243) is disposed on an inner surface (2401) of the pressing member, a stop block (1284) is disposed on the optical fiber connector plug, and the elastic structure is configured to: under driving of the stop block, make the pressing member slide in a direction close to the adapter body, to drive the sliding sleeve to slide relative to the adapter body.
  10. The optical fiber adapter according to any one of claims 1-6, wherein both the sliding assembly and the pressing member are sleeved and slidably connected to the outer surface of the adapter body, the sliding assembly and the pressing member are located on both sides of the first locking structure in the axial direction of the adapter body and both abut against the first locking structure, one end of the pressing member protrudes relative to the adapter body, and the pressing member is configured to drive the second locking structure to move in the radial direction of the adapter body to be detached from the first locking structure.
  11. A communication device (1000), wherein the communication device comprises a housing (1100) and the optical fiber adapter according to any one of claims 1 to 10, the housing is provided with a jack (1130), and the optical fiber adapter is disposed at a position of the jack, to be connected to the housing.

Description

TECHNICAL FIELD This application relates to the field of optical communication technologies, and in particular, to an optical fiber adapter, an optical fiber connector plug, a connector assembly, and a communication device. BACKGROUND With the development of communication technologies, optical fiber transmission is gradually widely applied in an access network represented by fiber to the home (fiber to the home, FTTH) due to its unique and excellent characteristics such as high bandwidth and low electromagnetic interference. During construction of a fiber to the home network, a distribution optical cable communicated with a central office (central office, CO) can be connected, in a fiber division box, to a drop optical cable communicated with a user terminal device, to transmit an optical signal. Considering that the drop optical cable not only needs to be reliably connected to the distribution optical cable and the user terminal device, but also needs to adapt to a complex and changeable outdoor environment, an optical fiber pre-connection product is gradually applied in a fiber to the home system. The optical fiber pre-connection product means that termination of a drop optical cable is performed in a factory. To be specific, optical fiber connector plugs are prepared at both ends of the drop optical cable, and an optical performance test, a mechanical performance test, an environmental performance test, and the like are performed. An optical fiber adapter matching an optical fiber connector plug is also prepared on a device to be connected to the drop optical cable. Currently, in a manner of locking the optical fiber adapter and the optical fiber connector plug, relatively large operation space is required. Therefore, it is difficult to perform an operation in some scenarios in which space is limited. US2009/046981A1 discloses a fiber optic interconnect system for mating two or more ferrules in face to face relation comprising a fiber optic connector for carrying at least one fiber optic cable in a ferrule, at least one connector having internal spring means serving to spring load said ferrule within said connector, and a push-release coupling mechanism operably associated with the adapter. Therein, the connector operably connects to an adapter by applying a first pushing force to the connector so as to at least partially compress said internal spring means to provide a mating force for mating said ferrules, and the push-release is for detachably retaining the connector in operably connected fashion with the adapter until a second pushing force is applied to the adapter in the same direction as the first pushing force, but at a different location, to release the connector from the adapter and push the connector away from the adapter by the force of the internal spring means.JP2011007839A discloses a manufacturing method of a photomask for photoengraving predetermined patterns in a photosensitive material film over a semiconductor substrate, the method comprising the steps as follows: in a desired pattern with designed values, extracting proximity design features that are close to each other and will brought closer to each other when optical proximity correction is carried out, and are estimated not to be stably resolved as a photomask pattern and to violate a mask rule check; in the proximity design features, setting correction prohibited regions where optical proximity correction is not carried out, based on the distance between the features obtained from the extracted proximity design features and a resolution obtained from the wavelength of the exposure light and the numerical aperture of an exposure device; carrying out optical proximity correction on the proximity design features with the correction prohibited regions excluded to obtain corrected proximity patterns; and carrying out electron beam lithography based on the corrected proximity patterns and thereby patterning a predetermined mask material. CN108254835A discloses a connector for optical fiber connection including a plug body, of which outside is equipped with plug housing. A front end of the plug housing is configured with an ejector apparatus. The outer surface of the plug body is provided with a groove for the connector clamping an adapter matched with the connector. SUMMARY The present invention is defined by the independent claims. In the following, parts of the description and drawings referring to former embodiments which do not necessarily comprise all features to implement embodiments of the claimed invention are not represented as embodiments of the invention but as examples useful for understanding the embodiments of the invention. Embodiments of this application provide an optical fiber adapter, an optical fiber connector plug, a connector assembly, and a communication device, to well adapt to setting of a scenario in which space is limited and achieve strong practicability and a wide application range. According to a first as