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EP-4099068-B1 - HIGH-DENSITY CONNECTOR

EP4099068B1EP 4099068 B1EP4099068 B1EP 4099068B1EP-4099068-B1

Inventors

  • LI, Yaole

Dates

Publication Date
20260506
Application Date
20220112

Claims (8)

  1. A high-density optical fiber connector, comprising a connecting joint (1) and a cable (11) connected to the connecting joint (1), wherein the connecting joint (1) comprises a hollow tail sleeve (2), a hollow housing (3) and a hollow metal plug-in device (4) sequentially connected by plug-fitting, a limiting block (301) is provided on the top of the hollow housing (3), the cross-section of the hollow metal plug-in device (4) is shaped as a rectangular loop, the hollow metal plug-in device (4) is integrally formed and provided with a pressing elastic piece (401) on its top, a clamping hook (402) is provided at the end of the pressing elastic piece (401), the clamping hook (402) and the limiting block (301) are connected by a limiting structure (502) of a push-pull rod (5), the push-pull rod (5) further comprises a transmission rod (501) and a push-pull handle (503) which are integrally formed with the limiting structure (502), the push-pull handle (503) is connected to the rear end of the transmission rod (501), the limiting structure (502) is provided with a hollow moving groove (504), the front end of the limiting structure (502) is bent upward to form an arc-shaped upwarp portion (505), and the rear end of the limiting structure (502) is provided with a protrusion (506) whose top is flush with the transmission rod (501), wherein a sleeving tube (201) is sleeved at the front end of the hollow tail sleeve (2), and the cable (11) is inserted into the rear end of the hollow tail sleeve (2), and the hollow housing (3) is provided with a metal fiber bundle tube (6) inside, and clamping structures (601) are provided on the front and rear ends of the metal fiber bundle tube (6); the sleeving tube (201), at its front end, is sleeved on the metal fiber bundle tube (6) through the clamping structure (601) at the rear end of metal fiber bundle tube (6), and the hollow housing (3) is provided with a limiting groove (304) corresponding to the clamping structure (601) at the front end of the metal fiber bundle tube (6), wherein a hollow tube formed by the hollow metal plug-in device (4) comprises a pin tube (403), a metal stopper cavity (404) and a connecting channel (405) sequentially arranged from front to back, and wherein when the push-pull rod (5) is pulled, the arc-shaped upwarp portion (505) of the limiting structure (502) moves the pressing elastic piece (401) downward through the clamping hook (402) of the pressing elastic piece (401), such that the high-density optical fiber connector is separated from a socket.
  2. The high-density optical fiber connector of claim 1, wherein, clamping blocks (408) are provided on both sides at the middle part of the pressing elastic piece (401), and the clamping hook (402) is bent upward into an unclosed circular ring.
  3. The high-density optical fiber connector of claim 1, wherein, the limiting structure (502) is arranged at the front end of the transmission rod (501), and a long reinforcing strip (507) is arranged at the top center of the transmission rod (501), the push-pull handle (503) is provided with inwardly curved arc-shaped recesses (508) on both sides, and the bottom surfaces of the limiting structure (502), the push-pull handle (503) and the transmission rod (501) are flush with a same horizontal plane.
  4. The high-density optical fiber connector of claim 3, wherein, an overall shape of the limiting block (301) is in a "T" shape, and the limiting block (301) is integrally formed and comprises a limiting post (302) and a limiting plate (303) arranged above the limiting post (302), the width dimension of the limiting plate (303) is not less than the width dimension of the push-pull rod (5), the height of the limiting post (302) is lower than the height of the protrusion (506), the width of the limiting plate (303) is greater than the width of the moving groove (504), and the limiting post (302) is located in the moving groove (504), and the limiting plate (303) is located on the front side of the protrusion (506).
  5. The high-density optical fiber connector of claim 1, wherein, the hollow housing (3), at its front end, is provided with a connecting tube (305) configured to connect with the rear end of the hollow metal plug-in device (4), both sides of the connecting tube (305) are provided with outwardly facing engaging protrusions (306), the connecting tube (305) is a structure with an outer square profile and an inner round hole, and positioning blocks (307) are provided on two lateral surfaces of the hollow housing (3).
  6. The high-density optical fiber connector of claim 5, wherein, an extension tube (7) is inserted into the front end of the connecting tube (305), the extension tube (7) extends into the hollow metal plug-in device (4), the front end of the extension tube (7) is inserted into the lower end of a metal stopper (701), a spring (702) is provided on the outer surface of the extension tube (7), and the radius of the spring (702) is consistent with the radius of the metal fiber bundle tube (6).
  7. The high-density optical fiber connector of claim 6, wherein, the outer wall of the connecting tube (305) closely fits with the inner wall of the connecting channel (405), the connecting channel (405) are provided with engaging holes (406) corresponding to the engaging protrusions (306) on both sides, and a protective cap (407) is inserted into the pin tube (403).
  8. The high-density optical fiber connector of claim 7, wherein, the metal stopper (701) is composed of: a spherical hollow protrusion at the front end, a hollow quadrangular prism in the middle, and a hollow cylinder at the rear end, wherein a pin (703) is inserted into the front end of the metal stopper (701), the contour of the metal stopper cavity (404) is corresponding to the outer contour of the metal stopper (701), and the metal stopper (701) is arranged in the metal stopper cavity (404).

Description

TECHNICAL FIELD The application relates to the technical field of optical fibers, and more particularly to a high-density optical fiber connector. BACKGROUND Optical fiber is a light transmission tool that allows light to be transmitted in a fiber made of glass or plastic using the principle of total reflection. Manufacturers in related industries are all committed to the development of optical fiber transmission, making optical fibers gradually replace traditional metal transmission lines, and have been widely used as signal transmission media. Furthermore, in order to enable the optical fiber to be connected to various electronic devices and the information transmitted by it is used by these electronic devices, a connector must be used as an intermediary between the optical fiber and the electronic device to achieve the purpose of connection. Generally, the optical fiber connector system consists of an adapter installed in the electronic device and used as the female connector of the connector, and an optical fiber connector as the male connector of the connector. When the optical fiber connector is inserted into the adapter, the connection relationship is formed, so as to achieve the purpose of data transmission. CN205620583U discloses a LC high density pair connector, wherein a pair of connectors having the same structure connect to a splint, the connector includes a preceding frame cover, into which a fixed portion of a pull rod is inserted. US2020049902A1 discloses a LC duplex connector comprising front casings, rear casings, an upper cover panel and a lower cover panel; each of the front casings is provided with a press strip, and a fastening point is provided on the press strip. CN110658590A discloses a connector and a push-pull member thereof, a push-pull member that is capable of reciprocating in the front-rear direction is arranged on a shell, and the push-pull member has an unlocking stroke that reciprocates back and forth under force. A plurality of optical fiber adapters are installed on the servers in the existing computer room, and communicate with the external data by connecting with the optical fiber connectors; however, in a highly intensive installation environment, the traditional connector is extremely inconvenient to use, whether plugging or unplugging for inspection, it is not only being time-consuming, but also quite inconvenient for plugging and unplugging. SUMMARY Aiming at the technical defects existing in the background art, a high-density optical fiber connector according to the independent claim 1 is provided, and more details of the invention are as defined in the dependent claims 2-8. The beneficial effects of the present application are: the push-pull rod is used to connect the pressing elastic piece and the housing, which ensures the stable connection of the structure and realize the free and accurate plugging and unplugging in a highly intensive installation environment, and at the same time, the connection relationship between the components is stable, which is conducive to the stability of the connector parameters, moreover, the structure is simple and convenient for operation and production, and also has the advantages of low cost and easy promotion. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of the three-dimensional structure of the present application.Figure 2 is a three-dimensional cross-sectional view of the present application.Figure 3 is a schematic diagram of the internal component structure of the present application.Figure 4 is a schematic diagram of the three-dimensional structure of the metal plug-in device of the present application.Figure 5 is a three-dimensional cross-sectional view of the metal plug-in device of the present application.Figure 6 is a schematic diagram of the three-dimensional structure of the housing of the present application.Figure 7 is a three-dimensional cross-sectional view of the housing of the present application.Figure 8 is a schematic diagram of the three-dimensional structure of the push-pull rod of the present application. In which: connecting joint 1, cable 11, tail sleeve 2, sleeving tube 201, housing 3, limiting block 301, limiting post 302, limiting plate 303, limiting groove 304, connecting tube 305, engaging protrusion 306, positioning block 307, metal plug-in device 4, pressing elastic piece 401, clamping hook 402, pin tube 403, metal stopper cavity 404, connecting channel 405, engaging hole 406, protective cap 407, clamping block 408, push-pull rod 5, transmission rod 501, limiting structure 502, push-pull handle 503, moving groove 504, arc-shaped upwarp portion 505, protrusion 506, reinforcing strip 507, arc-shaped recess 508, metal fiber bundle tube 6, clamping structure 601, extension tube 7, metal stopper 701, spring 702, pin 703. DETAILED DESCRIPTION The implementation of the present application are described below with reference to the accompanying drawings and related embodiments, it should