CN106941222A - communication connector with changeable polarity - Google Patents

Abstract

A polarity-changeable communication connector comprises a body, a pair of optical fiber plugs and a shell, wherein the optical fiber plugs are connected with an optical fiber socket to complete signal connection, the optical fiber plugs are installed at the front end of the body, the shell is covered outside the body in a sliding mode, an elastic sheet is arranged at the top of the shell, the front end of the elastic sheet is used for being clamped and fixed on the optical fiber socket, and a pair of clamping hooks is arranged on the surface of the shell corresponding to a clamping groove of the body. The invention is characterized in that the body and the shell are separated by simultaneously pressing the two clamping hooks and separating from the two clamping grooves, and then the body and the shell are relatively turned over for 180 degrees and then are installed back again, thus achieving the purpose of jumper wire of polarity exchange and greatly improving the convenience in use and operation.

Description

Reversible polarity communication connector

technical field

The invention belongs to the field of communication connectors, and in particular relates to a polarity-reversible communication connector structure that is convenient for polarity exchange, thereby greatly improving the convenience of operation.

Background technique

Traditional network communication technology uses copper wires as the medium for transmitting signals, but several things must be considered in the transmission of copper wires: 1. The transmission distance, because the transmission signal of copper wires is a live signal, it is limited by the diameter of copper wires and The resistance of itself, when the transmission distance is longer, the signal attenuation is more obvious, and there is a problem of poor signal; 2, the transmission noise, and the general copper wire is a network cable made of 8-core wire twisted, and the live signal is in the During network transmission, noise is generated due to the interference of electromagnetic effects, especially during high-frequency signal transmission, the noise will also increase and affect the transmission bandwidth. In recent years, in order to speed up the transmission of network signals, fiber optic networks have been further developed. Fiber optic networks have the following advantages: 1. The transmission speed of optical signals is faster than that of electrical signals; 2. The attenuation of optical signals is lower than that of electrical signals; 3. Using Optical fiber transmission distances are much longer than those using copper wires. Therefore, optical fiber network has gradually become the mainstream of network communication. However, using optical fiber as a transmission medium is different from ordinary copper wires in that the two ends of the copper wire are respectively connected to a signal transmission receiver, so that the same copper wire can be used as a transmission at the same time. Conversely, in order to transmit signals over long distances, the light transmitted by the optical fiber is laser light with greater energy, and the transmitter and receiver cannot be made together, so when using optical fiber to transmit signals, it must be transmitted in pairs , that is, one side is transmitting and the other side is receiving, thus creating the so-called polarity in optical fiber transmission systems.

However, the general optical fiber transmission needs to be paired, so the design of the communication connector is to combine the two connectors into a duplex communication connector, but limited by the polarity problem, special care must be taken not to reverse the connection when docking, otherwise it may cause damage to the optical fiber. Damage to transmitter or receiver. For this reason, when it is found that the polarity of the optical fiber is wrong, the connectors on both sides must be exchanged quickly. The traditional method is to use detachable upper and lower covers, and there is a matching embedded structure in between. When exchanging work, it is only necessary to separate the upper and lower covers and exchange the connectors on the left and right sides.

For example, U.S. Patent No. 7,712,970 "Detachable fiber optic connector" discloses a type in which two optical fiber plugs are assembled into one body through an upper and a lower cover. structure, in this way, it must be noted that the upper and lower covers cannot be lost when changing equipment. Because the space in the machine room is small, most operators work in a very small space. This separate design is especially important. Pay attention to this.

Or such as U.S. Patent No. 8,152,385 "Duplex fiber optic assembly suitable for polarity reversal and methods therefor", U.S. Patent No. 8,678,669 "Reconfigurable polarity detachable connector assembly" and U.S. Patent No. 8,727,638 "Fiber channel-inter changeable connector fiber optic" , both use the upper and lower shells to clamp and fix the two optical fiber plugs first, and wrap the upper and lower shells inside through a sliding cover, and when adjusting the polarity, open the sliding cover to make the upper 1. The lower shell is in a loose state. At the same time, the two optical fiber plugs are rotated 180 degrees axially, and then the sliding cover is pushed back to fix the upper and lower shells to complete the work of adjusting the polarity. However, the disadvantage of this design is that when the polarity is exchanged, the fiber optic plug will rotate together with the fiber optic cable, causing the fiber cable to be shortened due to twisting, resulting in incorrect positioning or easy damage after reassembly fiber optic cables etc.

Or, like the US Patent No. 8,834,038 "Fiber optic connector", two fiber optic plugs without shrapnel are covered with a casing, and a shrapnel mechanism is provided on the casing, and the shrapnel mechanism has two directions facing the fiber optic plug. According to the extended hooks, the two hooks can be plugged and fixed with an optical fiber socket. When it is necessary to exchange the polarity of the optical fiber, it is only necessary to pull out the spring mechanism and change it to the opposite side of the shell. This structure is the simplest compared to the above-mentioned patents, and although there is a torsion problem due to the overall flip, the twist can be evenly distributed throughout the entire optical fiber line, and the damage is smaller than that of a single twist or an exchange twist; however , because of the simple structure, the shrapnel structure may face a problem when the shell is pulled out. The shrapnel structure is easy to fly out, and it may cause loss in the construction environment.

The various communication connectors disclosed above are structurally modified from the original communication connectors. There is no universality at all for the communication connectors that have been installed in the early stage, and it will be time-consuming and laborious to replace all of them. , It is also quite inconvenient for the construction personnel of the computer room, so it is necessary to improve it.

Contents of the invention

In view of this, an object of the present invention is to provide a polarity-reversible communication connector, thereby using a sliding engagement relationship between a body and a shell to fix two optical fiber plugs located at the front end of the body, and The top of the housing is provided with a shrapnel for engaging and fixing on the optical fiber socket; moreover, a pair of hooks are provided on the surface of the housing corresponding to the body, and the housing is separated from the body by pressing the two hooks at the same time. The main body and the shell are turned 180 degrees relative to each other and then reassembled to achieve polarity exchange jumpers, greatly improving the convenience of use and operation.

In order to achieve the above-mentioned purpose, the polarity-reversible communication connector of the present invention is used to connect an optical fiber socket to complete the signal connection. There should be two outlet ports for the optical fiber cable, so that the two optical fiber cables of the optical fiber cable can pass through the two outlet ports respectively; a pair of optical fiber plugs are respectively fixed on the two outlet ports, so that each optical fiber cable Inserted and fixed in each optical fiber plug, so that the two optical fiber plugs respectively form two phases with opposite polarities in the corresponding optical fiber transmission system; It is arranged at a combined position in the accommodation space of the housing, and the top of the housing is provided with a shrapnel, when the communication connector is inserted into the optical fiber socket, the housing and the body can be engaged and fixed on the housing through the shrapnel. In the corresponding one socket on the optical fiber socket; when adjusting, press the two hooks at the same time to present a separated state from the two card slots, and the body can be separated from the inside of the shell to present a separated state, through the body and After the shell is reversed by about 180 degrees, the shell is returned to the combined position for fixing so as to achieve the purpose of polarity exchange.

In another embodiment, a guide block and a card slot may be respectively provided on both sides of the outer wall of the rear end of the body, so that the card slot is located on one side of the guide block, and the two sides of the housing further correspond to the two guides. The block is provided with a guide groove and a hook. After the main body is limited by the guide block and guided in the direction, the pair of hooks are engaged in the two draw grooves for fixing.

In one embodiment, a protrusion is provided on the outer wall of each outlet end, and each fiber optic plug is provided with a groove corresponding to the protrusion, so as to fix each fiber optic plug to the outlet end. However, the elastic piece is integrally formed and arranged above the rear end of the shell, so that the elastic piece presents an upward and forward arc-shaped extension relative to the shell, and the front end of the elastic piece forms two bifurcated buckle parts. The tip of each locking part extends laterally and outwards to two sides with two locking points, and can be locked and fixed in the insertion hole of the optical fiber socket through the two locking points.

Alternatively, a pivot joint is provided above the rear end of the casing, so that the elastic piece is movably pivoted to the pivot joint, so that the elastic piece presents an upward and forward arc-shaped extension relative to the casing, and the The front end of the shrapnel forms two bifurcated buckle parts, and the tip of each buckle part extends laterally outward to two sides with two sticking points, through which the two sticking points can be locked and fixed to the socket of the optical fiber socket In addition, the bottom of the shrapnel is provided with a top portion corresponding to the shell to provide the recovery height required for the shrapnel in use; or an elastic component is provided between the bottom of the shrapnel and the shell to provide the shrapnel Resilience required for use.

In another embodiment, the communication connector with reversible polarity of the present invention further has a release lever, and the release lever is extended from the other end of the elastic piece, so that the release lever is downward relative to the shell and Backward arc extension pattern. Furthermore, a raised part is provided on the bottom surface of the release lever, and the raised part is located between the pivotal part and the optical fiber cable, so as to raise the release lever and move the front end of the elastic sheet downward. Moreover, the end of the release lever presents an upturned curved surface corresponding to the insertion direction of the operator's finger, so that the finger can be inserted between the curved surface and the optical fiber cable, so that the two buckles at the front end of the elastic piece The part is disengaged from the insertion hole of the optical fiber socket, and the upward angle of the curved surface is between 10 degrees and 35 degrees.

Description of drawings

Fig. 1 is an exploded perspective view of a preferred embodiment of the present invention.

Fig. 2 is an assembled perspective view of a preferred embodiment of the present invention.

Fig. 3 is a cross-sectional view of a preferred embodiment of the present invention after assembly.

Fig. 4 is a schematic diagram of a state when a preferred embodiment of the present invention is inserted into a fiber optic socket.

Fig. 5 is a schematic diagram (1) of the state when the polarity is changed in a preferred embodiment of the present invention.

Fig. 6 is a schematic diagram (2) of the state when the polarity is changed in a preferred embodiment of the present invention.

Fig. 7 is another embodiment of the housing of the preferred embodiment of the present invention.

Fig. 8 is a schematic structural diagram of another preferred embodiment of the present invention.

Fig. 9 is a schematic view of another preferred embodiment of the present invention when it is inserted into a fiber optic socket.

Fig. 10 is a schematic diagram of another preferred embodiment of the present invention when it is pulled out from the optical fiber socket.

detailed description

In order to further describe the content of the present invention, only the following descriptions are used together with the drawings, please refer to them.

Please refer to Figures 1, 2, 3 and Figures 4-6, which are the perspective exploded view of the preferred embodiment of the present invention and its assembled perspective appearance and cross-sectional views, as well as various state diagrams when inserting into the optical fiber socket and changing polarity . As shown in the figure, the polarity-reversible communication connector 1 of the present invention includes a body 11, a pair of optical fiber plugs 12 and a housing 13 for connecting to an optical fiber socket 2 to complete the signal connection.

Wherein the rear end of this main body 11 is for penetrating an optical fiber cable 3, and the other end is then provided with two outlet ports 111 corresponding to this optical fiber cable 3, makes the two optical fiber lines 31 of this optical fiber cable 3 pass through these two outlet ports respectively. 111 , and two guide blocks 112 are respectively provided on the two sides of the outer wall at the rear end of the main body 11 . It should be noted that each outlet port 111 is provided with a positioning slot 113 corresponding to a fiber plug. In addition, two card slots 115 are respectively provided on the two side outer walls of the body 11, so that the two card slots 115 are respectively located on one side of each guide block 112 (referring to the rear side in the figure).

Each of the optical fiber plugs 12 is respectively fixed in the positioning groove 113 of the two outlet ports 111, so that each optical fiber cable 31 is inserted and fixed in each of the optical fiber plugs 12, so that the two optical fiber plugs 12 are respectively Two phases with opposite polarities in the corresponding optical fiber transmission system are formed. Wherein, the outer wall of each outlet end 111 is provided with a protrusion 114, and each optical fiber plug 12 is provided with a groove 121 corresponding to the protrusion 114, so that each optical fiber plug 12 is fixed on the outlet end 111 .

An accommodating space 131 is provided inside the casing 13, and the shape of the accommodating space 131 corresponds to the body 11 for accommodating the body 11 therein, and the two sides of the casing 13 correspond to the two guides respectively. The block 112 is provided with a guide groove 132 and a hook 133, the two guide grooves 132 correspond to the two guide blocks 112 respectively, and can smoothly limit and guide the moving direction of the housing 13 relative to the body 11, and each A hook 133 is located on one side of each guide slot 132 (the other side relative to the outlet end 111 ), for engaging in the slots 115 , as the housing 13 moves backward relative to the body 11 . Sliding to form disengagement, or the fixing means when the housing 13 slides forward relative to the body 11 to form engagement, the action method is as follows: the two hooks 133 are correspondingly engaged in the two card slots 115, To fix the main body 11 inside the housing 13, otherwise it will be released, and the top of the housing 13 is provided with a shrapnel 134, it should be noted that the shrapnel 134 is integrally formed and arranged above the rear end of the housing 13, Make the elastic piece 134 present an upward and forward arc-shaped extension relative to the housing 13, as shown in FIG. 4 , when the communication connector 1 is inserted into the optical fiber socket 2, the housing can be 13 and the main body 11 are fastened and fixed in the corresponding insertion hole 21 on the optical fiber socket 2, and the front end of the elastic piece 134 forms two bifurcated buckle parts 1341, and the tip of each buckle part 1341 faces two Two clamping points 1342 extend laterally outward from the side 13 , and can be clamped and fixed in the insertion hole 21 of the optical fiber socket 2 through the two clamping points 1342 .

As shown in Figures 5 and 6, when the communication connector 1 of the present invention needs to adjust the polarity (commonly known as a jumper), the operator can press the rear ends of the two hooks 133 at the same time to make the front ends of the hooks 133 The two guide blocks 112 are in a separated state, so that the shell 13 is in a released active state, and slide relative to the rear of the body 11, so that the body 11 and the shell 13 are in a separated state, and then the body 11 or the shell 12 Choose one of the two options and turn it over 180 degrees, then slide the shell 13 again and put it back on the main body 11, so that it can return to the original engaged and fixed state, and quickly complete the work of polarity exchange. Such a design can not only avoid Occasionally, there will be a problem of missing parts, and it can also prevent the optical fiber cable 3 from being damaged due to excessive twisting, and greatly improve the operation efficiency, which is quite practical.

Please also refer to FIG. 7 , which is another embodiment of the housing according to the preferred embodiment of the present invention. As shown in the figure, a pivoting portion 135 is provided above the rear end of the housing 13 of the present invention, so that the elastic piece 134 is movably pivotally connected to the pivoting portion 135, so that the elastic piece 134 appears upward and upward relative to the housing 13. The front end of the elastic piece 134 also forms two bifurcated buckle parts 1341 in a forward arc shape, and the tip of each buckle part 1341 extends laterally outward from the two buckle points 1342 toward both sides. Therefore, the two locking points 1342 can be used to engage and fix in the insertion hole 21 of the optical fiber socket 2 . Moreover, in order to further provide the recovery height and elasticity required for the elastic piece 134 in use, the present invention provides a top portion 1343 or an elastic component 1344 at the bottom of the elastic piece 134 corresponding to the housing 13, so that the elastic piece 134 can be To ensure that it can return to the original height position after each use, so that it can be firmly engaged and fixed in the jacks 21 to ensure its stability after fixing.

Please refer to FIGS. 8 , 9 , and 10 , which are schematic diagrams of the structure of another preferred embodiment of the present invention, and a schematic diagram of its state when it is inserted and pulled out of the optical fiber socket. As shown in the figure, the structure of another preferred embodiment of the present invention is substantially the same as that of the previous embodiment, and the biggest difference is that the other end of the elastic piece 134 is extended with a release lever 14 to form an integral body. , and adopts the same movable pivoting method as the previous embodiment, and the release lever 14 presents a downward and backward arc-shaped extension relative to the housing 13, and its length corresponds to the position of reaching the optical fiber cable 3, Moreover, a raised portion 141 is provided on the bottom surface of the release lever 14, and the raised portion 141 is located between the pivotal portion 135 and the optical fiber cable 3, so as to raise the release lever 14 so that the front end of the elastic piece 134 Move Downward. And, the end of the release lever 14 is an upward curved surface 142 corresponding to the insertion direction of the operator's finger, so that the finger is inserted between the curved surface 142 and the optical fiber cable 3, so that the elastic piece 134 The two buckle parts 1341 at the front end are detached from the insertion hole 21 of the optical fiber socket 2. It should be noted that the upward warping angle of the curved surface 142 is between 10 degrees and 35 degrees according to the actual test results. , the most suitable for the operator to operate too large or too small will easily cause the problem of unsmooth operation.

The above description is only illustrative, rather than restrictive, to the present invention. Those of ordinary skill in the art understand that many modifications and changes can be made without departing from the spirit and scope defined by the following appended claims. Or equivalent, but all will fall within the protection scope of the present invention.

Claims (9)

1. A polarity-reversible communication connector for connecting an optical fiber socket with two jacks to complete the signal connection, characterized in that it includes: A body, the rear end of which is used to pass through an optical fiber cable, and the other end is provided with two outlet ports corresponding to the optical fiber cable, so that the two optical fiber lines of the optical fiber cable can pass through the two outlet ports respectively; A pair of optical fiber plugs are respectively fixed on the two outlet ports, so that each optical fiber line is passed through and fixed in each optical fiber plug, so that the two optical fiber plugs respectively form two phases of opposite polarity in the corresponding optical fiber transmission system. ;and A shell, which has an accommodating space corresponding to the main body inside, so that the main body is arranged at a combined position in the accommodating space of the shell, and a shrapnel is provided on the top of the shell, when the communication connector is inserted into the When the fiber optic socket is used, the shell and the body are engaged and fixed in the corresponding socket on the fiber optic socket through the shrapnel; when adjusting, the body can be separated from the inside of the shell to present a separated state, through the body and the body After the shell is reversed by about 180 degrees, the shell is returned to the combined position and then sleeved on the main body. 2. The communication connector with reversible polarity according to claim 1, wherein the elastic piece is integrally formed and arranged above the rear end of the shell, so that the elastic piece presents an upward and forward arc relative to the shell Shaped extension, and the front end of the shrapnel forms two bifurcated buckle parts, and the tip of each buckle part extends laterally outward to two sides with two sticking points, through which two sticking points can be locked and fixed on the In the jack of the fiber optic socket. 3. The communication connector with reversible polarity according to claim 1, characterized in that a pivot joint is provided above the rear end of the housing, so that the elastic piece is movably pivotally connected to the pivot joint so that the elastic piece is relatively The shell presents an upward and forward arc-shaped extension, and the front end of the elastic piece forms two bifurcated buckle parts, and the tip of each buckle part extends laterally outwards to two buckle points on both sides. The two clamping points can be engaged and fixed in the insertion hole of the optical fiber socket. 4 . The communication connector with reversible polarity as claimed in claim 4 , wherein the bottom of the elastic piece is provided with a top portion corresponding to the shell, so as to provide the recovery height required by the elastic piece when in use. 4 . 5 . The communication connector with reversible polarity as claimed in claim 5 , wherein an elastic member is disposed between the bottom of the elastic piece and the shell to provide the recovery elasticity required for the elastic piece in use. 6 . 6. A polarity-reversible communication connector for connecting an optical fiber socket with two jacks to complete the signal connection, characterized in that it includes: A main body, the rear end of which is used to pass through an optical fiber cable, and the other end is provided with two outlet ports corresponding to the optical fiber cable, so that the two optical fiber lines of the optical fiber cable can pass through the two outlet ends respectively. Two sides of the outer wall of the end are respectively provided with a guide block and a card slot, and the card slot is located on one side of the guide block; A pair of optical fiber plugs are respectively fixed on the two outlet ports, so that each optical fiber line is passed through and fixed in each optical fiber plug, so that the two optical fiber plugs respectively form two phases of opposite polarity in the corresponding optical fiber transmission system. ; A housing, the inside of which is provided with an accommodating space corresponding to the main body, and the two sides of the housing are respectively provided with a guide groove and a hook corresponding to the two guide blocks, so that the body is limited by the guide block and guided in a direction Then, use the pair of hooks to engage in the two slots, so that the main body is arranged in a combined position in the accommodating space of the shell, and the top of the shell is provided with a shrapnel, when the communication connector is inserted When placed in the optical fiber socket, the shell and the body can be engaged and fixed in the corresponding insertion hole on the optical fiber socket through the elastic piece; and A release lever is extended from the other end of the shrapnel, and the release lever is extended backward relative to the shell; when adjusted, the body can be detached from the inside of the shell and presents a separated state, through the body and the shell After being turned over about 180 degrees, the shell is returned to the combined position and sleeved on the main body. 7. The polarity-reversible communication connector according to claim 6, wherein a raised portion is provided on the bottom surface of the release lever, and the raised portion is located between the pivotal portion and the optical fiber cable, The front end of the shrapnel is moved downward by raising the release lever. 8. The communication connector with reversible polarity according to claim 7, wherein the end of the release lever presents an upwardly curved arc surface corresponding to the insertion direction of the operator's finger, so that the finger can be inserted into the curved surface. between the arc surface and the optical fiber cable, so that the two buckle parts at the front end of the elastic piece are disengaged from the insertion hole of the optical fiber socket. 9 . The communication connector with reversible polarity as claimed in claim 8 , wherein an angle of upturning of the curved surface is between 10 degrees and 35 degrees. 10 .