Optical communication connector

Abstract

An optical communication connector can be assembled to a butt joint circuit board, and comprises a terminal module which is provided with an insulation body and a plurality of conductive terminals fixedly arranged in the insulation body; the front end surface of the insulating body is recessed backwards to form a first slot and a second slot, and the first slot and the second slot are arranged at an interval along the thickness direction of the butt-joint circuit board; the metal shell is assembled and matched with the insulating body along the thickness direction of the butt joint circuit board, an accommodating cavity is defined and formed in the metal shell, an insertion port for insertion of the butt joint connector is formed at one end of the metal shell, and the accommodating cavity is communicated with the first slot and the second slot; and the stopping component is assembled on the surface of one side, facing the butt joint circuit board, of the insulating body and is close to the position of the insertion port, a stopping end is formed on the stopping component, and the stopping end is forwards exposed into the accommodating cavity and is configured to abut against a butt joint connector inserted into the accommodating cavity so as to prevent the butt joint connector from being excessively inserted.

Description

Technical Field

[0001] This application relates to an optical communication connector. Background Technology

[0002] With the development of electrical connectors, especially high-speed connectors, stacked electrical connectors are becoming increasingly common. These connectors typically include an upper socket and a lower socket. Structurally, the stacked connector generally includes an insulating body, several conductive terminals, and a metal housing surrounding the insulating body.

[0003] In some installation methods, after the insulating body and the conductive terminals are assembled, they are first mounted on the circuit board, and then the metal housing is mounted from top to bottom on the outside of the insulating body and fixed to the circuit board. For specific details, refer to Chinese invention patent CN113422243B. In this type of stacked electrical connector, the upper socket can be limited by a stop plate 61 formed by bending the top plate of the metal housing 3 to restrict the insertion depth of the mating plug and prevent over-insertion. However, to avoid interference between the metal housing and the insulating body during installation, a stop plate for the lower socket cannot be formed on the metal housing.

[0004] Therefore, in patent CN113422243B, a separate stop block 51 is used to achieve this. However, since the stop block 51 is made of plastic and is assembled and implanted into the lower socket, it is prone to misalignment or deformation when it collides with the connector, or even detachment. If the stop block 51 is made of metal, there is a risk of accidental contact (electrical contact) or even short circuit. Utility Model Content

[0005] The purpose of this application is to provide an optical communication connector that can effectively stop the insertion of mating connectors.

[0006] To achieve the aforementioned objective, this application provides the following technical solution:

[0007] An optical communication connector, capable of being assembled onto a mating circuit board, includes:

[0008] The terminal module has an insulating body and several conductive terminals fixed inside the insulating body;

[0009] The front end of the insulating body is recessed to form a first slot and a second slot for mating with the mating connector. The first slot and the second slot are spaced apart along the thickness direction of the mating circuit board.

[0010] Each of the conductive terminals includes a fixed section fixed inside the insulating body, a contact section extending from the fixed section into the first slot or the second slot, and a mating section extending from the fixed section out of the insulating body. The contact section corresponds to electrical contact with the mating connector, and the mating section corresponds to electrical contact with the mating circuit board.

[0011] A metal housing is assembled and fitted with an insulating body along the thickness direction of the mating circuit board. The metal housing is defined to have a receiving cavity and an insertion port for the mating connector to be inserted at one end. The receiving cavity is connected to a first slot and a second slot.

[0012] A stop member is assembled on the side surface of the insulating body facing the mating circuit board and near the insertion port. The stop member has a stop end that protrudes forward into the receiving cavity and is configured to abut against the mating connector inserted into the receiving cavity to prevent the mating connector from being over-inserted.

[0013] Furthermore, the stop member is an independent metal component and is fixed to the insulating body by a detachable assembly.

[0014] Furthermore, the stop member includes a main plate and fasteners extending upward from the two sides of the main plate, the fasteners being fixed to the outer surfaces of the two sides of the insulating body, and the stop end being formed at the front end of the main plate along the pull-out direction of the mating connector.

[0015] Furthermore, the outer surfaces on both sides of the insulating body are recessed to form embedding grooves, and the fastener includes an arm piece and an embedding piece extending from the free end of the arm piece. At least a portion of the arm piece is correspondingly attached to the outer surface of the insulating body, and the embedding piece is correspondingly embedded in the embedding groove.

[0016] Furthermore, the insert groove extends along the insertion and removal direction of the mating connector, and the front end of the insert groove along the removal direction of the mating connector is open forward to form an insert opening.

[0017] The insert piece of the stop member is slidably inserted into the insert groove via the insert port of the insert groove along the insertion direction of the mating connector.

[0018] Furthermore, it also includes: a protrusion formed on the outer surface of the insulating body, along the thickness direction of the mating circuit board, the protrusion being located between the embedding groove and the mating circuit board;

[0019] A snap-fit ​​hole is formed through the arm piece;

[0020] When the insert piece of the stop member slides into the insert groove to a certain depth along the insertion direction of the mating connector via the insert port of the insert groove, the snap hole is locked in place with the snap protrusion.

[0021] Furthermore, the insulating body has a recessed relief opening on the side surface facing the mating circuit board near the insertion port. The relief opening is open towards the receiving cavity along the pull-out direction of the mating connector. The relief opening is open at both ends along the width direction perpendicular to the insertion and pull-out direction of the mating connector. The stop member is correspondingly assembled and fixed at the relief opening position.

[0022] Along the vertical direction perpendicular to the insertion / removal direction and width direction of the mating connector, the main body plate and the inner wall surface of the clearance opening are spaced apart and opposite to each other.

[0023] The main plate protrudes in the vertical direction away from the mating circuit board at the front edge position of the connector in the pull-out direction to form a stop portion, and the stop portion is defined by the front edge of the connector in the pull-out direction.

[0024] Furthermore, the insulating body has a stop groove formed on the side facing the mating circuit board near the clearance opening, and the stop groove is open along the pull-out direction of the mating connector.

[0025] The main plate is inserted into the stop groove along the insertion direction of the connector.

[0026] Furthermore, the stop groove is open on the side facing the mating circuit board, and the lower surface of the main plate is flush with the lower surface of the insulating body.

[0027] Furthermore, the metal casing includes a top wall, a bottom wall, two side walls connecting the top wall and the bottom wall, and a rear wall connecting one end of the top wall and the two side walls;

[0028] The top wall, bottom wall, two side walls, and rear wall together enclose the receiving cavity;

[0029] A partition is disposed between the top wall and the bottom wall to divide the receiving cavity into an upper insertion cavity and a lower insertion cavity;

[0030] Along the insertion and removal direction of the mating connector, the upper insertion cavity is connected to the first slot, and the lower insertion cavity is connected to the second slot.

[0031] The terminal module insertion port is formed between the front edge and the rear wall of the bottom wall and the partition along the insertion direction of the docking connector, and the front part of the receiving cavity along the insertion direction of the docking connector is connected downward to the outside.

[0032] The metal housing is embedded in the mask through the terminal module and positioned around the terminal module.

[0033] Compared with the prior art, the beneficial effect of this application is that it can effectively stop the insertion of the mating connector. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of the optical communication connector of this application, specifically showing the state diagram when the optical communication connector is assembled onto the mating circuit board.

[0035] Figure 2 This is a three-dimensional schematic diagram of the optical communication connector of this application. Figure 2 Display angle and Figure 1 Different, and Figure 2 The mating circuit board was not shown in the image.

[0036] Figure 3 This is a partial exploded perspective view of the optical communication connector of this application, specifically showing a perspective view of the terminal module and metal housing being separated from the mating circuit board.

[0037] Figure 4 yes Figure 3 A three-dimensional diagram viewed from another angle.

[0038] Figure 5 This is a partial exploded perspective view of the terminal module of the optical communication connector of this application, specifically showing the state diagram when the stop member is separated from the insulating body.

[0039] Figure 6 This is a partial exploded perspective view of the terminal module of the optical communication connector of this application, specifically showing the state diagram when the stop member separates from the insulating body, in which... Figure 6 and Figure 5 The viewing angles are different.

[0040] Figure 7 This is a side view of the terminal module of the optical communication connector of this application.

[0041] Figure 8 This is a front view of the terminal module of the optical communication connector of this application.

[0042] Figure 9 yes Figure 3 Enlarged view of the structure within the dashed box. Detailed Implementation

[0043] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] To ensure the accuracy of the description throughout this application, all references to directions should be made using the format of "direction". Figure 1 For reference, specifically: the X-axis direction is defined as the width direction (left and right); the Y-axis direction is defined as the up and down direction, with the positive Y-axis being up; the Z-axis direction is defined as the front and back direction (that is, the insertion and removal direction of the mating connector), with the positive Z-axis being back, which is the insertion direction of the mating connector.

[0045] Please refer to the reference. Figures 1 to 9 As shown, the optical communication connector 100 shown in this application includes a terminal module 10, a metal housing 3 that mates with the terminal module 10, and a stop member 4 assembled and fixed on the terminal module 10. The optical communication connector 100 can be assembled onto a mating circuit board 200, which may be a substrate component within an electronic device / communication facility.

[0046] The terminal module 10 includes an insulating body 1 and a plurality of conductive terminals 2 fixed within the insulating body 1. The front end of the insulating body 1 is recessed rearward to form a first slot 110 and a second slot 120, which are independently spaced along the thickness direction of the mating circuit board 200. Each conductive terminal 2 is made of metal and includes a fixing segment (unlabeled) fixed within the insulating body 1, a contact segment 21 extending from the fixing segment into the first slot 110 or the second slot 120, and a mating segment 22 extending from the fixing segment out of the insulating body 1. The contact segment 21 corresponds to electrical contact with the mating connector, and the mating segment 22 corresponds to electrical contact with the mating circuit board 200. Specifically, in this embodiment, the mating segment 22 extends downward from the lower surface of the insulating body 1. The plurality of contact segments 21 are arranged in two rows along the width direction and correspond to the upper and lower inner wall surfaces of the first slot 110, respectively. The plurality of contact segments 21 are arranged in two rows along the width direction and correspond to the upper and lower inner wall surfaces of the second slot 120, respectively.

[0047] Please refer to the reference. Figures 1 to 4As shown, the metal housing 3 includes a top wall 31, a bottom wall 32, two side walls 33 connecting the top wall 31 and the bottom wall 32, a rear wall 34 connecting one end of the top wall 31 and the two side walls 33, and a partition side wall 36 disposed in the middle of the two side walls 33 along the width direction. The top wall 31, bottom wall 32, two side walls 33, and rear wall 34 together form a receiving cavity 301. The partition side wall 36 divides the receiving cavity 301 into a left receiving cavity (not labeled) and a right receiving cavity (labeled). Further, in the illustrated embodiment of this application, the metal housing 3 also includes a partition 35, which is disposed between the top wall 31 and the bottom wall 32, dividing the receiving cavity 301 into an upper insertion cavity 3011 and a lower insertion cavity 3012. Specifically, the left receiving cavity is divided into a left upper insertion cavity 3011 and a left lower insertion cavity 3012 arranged in the vertical direction; the right receiving cavity is divided into a right upper insertion cavity 3011 and a right lower insertion cavity 3012 arranged in the vertical direction.

[0048] The metal housing 3 also forms a terminal module insertion port 30, which is formed between the front edge of the bottom wall 32 and the partition 35 along the insertion direction of the connector and the rear wall 34, communicating the front part of the receiving cavity 301 along the insertion direction of the connector downwards with the outside. Specifically, the terminal module insertion port 30 is divided into two parts by the partition sidewall 36, one of which communicates the left upper insertion cavity 3011 and the left lower insertion cavity 3012 downwards with the outside; the other communicates the right upper insertion cavity 3011 and the right lower insertion cavity 3012 downwards with the outside.

[0049] In the illustrated embodiment of this application, two terminal modules 10 are provided, each corresponding to one of the two terminal module implantation ports 30. Of course, in other embodiments, only one terminal module 10 may be provided, and correspondingly, the metal housing 3 may also be provided with only one left or one right receiving cavity. In this case, the partition sidewall 36 is also the sidewall 33.

[0050] Using a terminal module 10 as an example, along the insertion / removal direction of the connector, the upper insertion cavity 3011 of the metal housing 3 communicates with the first slot 110, and the lower insertion cavity 3012 communicates with the second slot 120. The stop member 4 is an independent metal component and is detachably assembled and fixed to the insulating body 1. Please refer to the reference. Figures 2 to 9As shown, the stop member 4 is disposed on the lower surface of the insulating body 1 facing the mating circuit board 200, near the front end (i.e., the insertion end of the mating connector). The stop member 4 has a stop end 401, which protrudes forward into the receiving cavity 301 and is configured to abut against the mating connector inserted into the receiving cavity 301 to prevent over-insertion of the mating connector. Specifically, the stop member 4 includes a main body plate 41 and fasteners 42 extending upward from both sides of the main body plate 41. The fasteners 42 are fixed to the outer surfaces of both sides of the insulating body 1, and the stop end 401 is formed at the front end of the main body plate 41 along the direction of connector pull-out.

[0051] In a preferred embodiment, recessed insertion grooves 102 are formed on both outer surfaces of the insulating body 1. The fastener 42 includes an arm 421 and an insertion piece 422 extending from the free end of the arm 421. At least a portion of the arm 421 is attached to the outer surface of the insulating body 1 (in the illustrated embodiment, the upper end of the arm 421 is attached to the outer surface of the insulating body 1), and the insertion piece 422 is embedded in the insertion groove 102. In a preferred embodiment, the insertion groove 102 extends along the insertion / removal direction of the connector, and the front end of the insertion groove 102 along the removal direction of the connector is open forward to form an insertion opening 1021. The insertion piece 422 of the stop member 4 is slidably embedded into the insertion groove 102 via the insertion opening 1021 of the insertion groove 102 along the insertion direction of the connector.

[0052] Please refer to the reference. Figures 3 to 9 As shown, the outer surface (both ends in the width direction) of the insulating body 1 has protruding locking protrusions 5. Along the thickness direction of the mating circuit board, the locking protrusions 5 are located between the insertion groove 102 and the mating circuit board 200. A locking hole 423 is formed through the arm piece 421. When the insert piece 422 of the stop member 4 slides into the insertion groove 102 to a certain depth along the insertion direction of the mating connector via the insertion port 1021 of the insertion groove 102, the locking hole 423 engages with the locking protrusion 5 for secure fastening.

[0053] In a preferred embodiment, the insulating body 1 has a recessed clearance 101 at the front end (near the insertion port) of its surface facing the mating circuit board 200. The clearance 101 is open into the receiving cavity 301 along the pull-out direction of the mating connector. Both ends of the clearance 101 are open in the width direction (i.e., at both sides of the insulating body 1). The stop member 4 is correspondingly assembled and fixed at the clearance 101. The main body plate 41 and the inner wall surface of the clearance 101 are spaced apart and opposite each other in the vertical direction. A stop portion 40 is formed on the main body plate 41 at its front edge along the pull-out direction of the mating connector, protruding in the vertical direction away from the mating circuit board 200. The stop end 401 is defined by the stop portion 40 along the front edge along the pull-out direction of the mating connector.

[0054] Furthermore, the insulating body 1 has a stop groove 103 formed on the side facing the mating circuit board 200 near the clearance opening 101, and the stop groove 103 is open in the pull-out direction of the mating connector. The front edge of the main body plate 41 is inserted into the stop groove 103 in the insertion direction of the mating connector. In one embodiment, the stop groove 103 is open on the side facing the mating circuit board 200, and the lower surface of the main body plate 41 is flush with the lower surface of the insulating body 1. In another embodiment, the stop groove 103 is open only in the pull-out direction of the mating connector, and the front edge of the main body plate 41 is inserted into the stop groove 103 in the insertion direction of the mating connector. The stop groove 103 is used to prevent the stop member 4 from being excessively inserted in the insertion direction of the mating connector when it is assembled to the insulating body 1.

[0055] In one embodiment of the optical communication connector of this application, the terminal module 10, equipped with the stop member 4, is assembled and fixed to the mating circuit board 200 from top to bottom. Then, the metal housing 3 is fitted and assembled from top to bottom around the terminal module 10 and fixed to the mating circuit board 200. The terminal module 10 equipped with the stop member 4 is an independent component, and the metal housing 3 is an independent component; the two are used only in conjunction. Another embodiment may be: the terminal module 10 equipped with the stop member 4 is inserted and assembled into the metal housing (3) from bottom to top through the terminal module insertion port (30) to form an integral assembly, which is then installed onto the mating circuit board 200 as a whole in one go during use.

[0056] In this application, the front edge of the stop member 4 is located behind the front edge of the insulating body 1. By designing the stop member 4 and the metal housing 3 as two independent pieces, and fixing the stop member 4 separately to the insulating body 1, interference between the metal housing 3 and the insulating body is avoided during assembly. This also allows the second slot 120 of the optical communication connector located below to also act as an insertion stop for the mating connector.

[0057] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical communication connector (100) capable of being assembled onto a mating circuit board (200), characterized in that, include: The terminal module (10) is provided with an insulating body (1) and a plurality of conductive terminals (2) fixed in the insulating body (1); The front end of the insulating body (1) is recessed to the rear to form a first slot (110) and a second slot (120) for mating with the mating connector. The first slot (110) and the second slot (120) are spaced apart along the thickness direction of the mating circuit board (200). Each of the conductive terminals (2) includes a fixed section fixed inside the insulating body (1), a contact section (21) extending from the fixed section into the first slot (110) or the second slot (120), and a mating section (22) extending from the fixed section out of the insulating body (1). The contact section (21) corresponds to electrical contact with the mating connector, and the mating section (22) corresponds to electrical contact with the mating circuit board (200). The metal housing (3) is assembled and fitted with the insulating body (1) along the thickness direction of the mating circuit board (200). The metal housing (3) is defined to have a receiving cavity (301) and an insertion port for the mating connector to be inserted at one end. The receiving cavity (301) is connected to the first slot (110) and the second slot (120). A stop member (4) is disposed on the side surface of the insulating body (1) facing the mating circuit board (200) and near the insertion port. The stop member (4) has a stop end (401) that protrudes forward into the receiving cavity (301) and is configured to abut against the mating connector inserted into the receiving cavity (301) to prevent the mating connector from being over-inserted.

2. The optical communication connector (100) as described in claim 1, characterized in that: The stop member (4) is an independent metal component and is fixed to the insulating body (1) by a detachable assembly.

3. The optical communication connector (100) as described in claim 1, characterized in that: The stop member (4) includes a main plate (41) and fasteners (42) formed by extending upward from both sides of the main plate (41). The fasteners (42) are fixed to the outer surfaces of both sides of the insulating body (1). The stop end (401) is formed at the front end of the main plate (41) along the pull-out direction of the connector.

4. The optical communication connector (100) as described in claim 3, characterized in that: The outer surfaces on both sides of the insulating body (1) are recessed to form embedded grooves (102). The fastener (42) includes an arm piece (421) and an insert piece (422) extending from the free end of the arm piece (421). At least a portion of the arm piece (421) is attached to the outer surface of the insulating body (1), and the insert piece (422) is embedded in the insert groove (102).

5. The optical communication connector (100) as described in claim 4, characterized in that: The insert groove (102) extends along the insertion and removal direction of the connector, and the front end of the insert groove (102) along the removal direction of the connector is open and forms an insert opening (1021). The insert piece (422) of the stop member (4) is slidably inserted into the insert groove (102) via the insert port (1021) of the insert groove (102) along the insertion direction of the mating connector.

6. The optical communication connector (100) as described in claim 5, characterized in that, Also includes: The card protrusion (5) protrudes from the outer surface of the insulating body (1) and is located between the insertion groove (102) and the mating circuit board (200) along the thickness direction of the mating circuit board (200). A snap-fit ​​hole (423) is formed through the arm piece (421); When the insert piece (422) of the stop member (4) slides into the insert groove (102) to a certain depth via the insert port (1021) of the insert groove (102) along the insertion direction of the mating connector, the snap hole (423) is locked in place with the snap protrusion (5).

7. The optical communication connector (100) as described in claim 3, characterized in that: The insulating body (1) has a recessed relief opening (101) on the side surface facing the mating circuit board (200) near the insertion port. The relief opening (101) is open towards the receiving cavity (301) along the pull-out direction of the mating connector. The relief opening (101) is open at both ends along the width direction perpendicular to the insertion and pull-out direction of the mating connector. The stop member (4) is assembled and fixed at the position of the relief opening (101). Along the vertical direction perpendicular to the insertion and removal direction and the width direction of the mating connector, the main body plate (41) and the inner wall surface (1011) of the relief opening (101) are spaced apart and opposite to each other. The main plate (41) has a stop portion (40) protruding from the front edge of the connector in the vertical direction away from the connector circuit board (200) at the position of the front edge of the connector in the pull-out direction. The stop end (401) is defined by the stop portion (40) in the pull-out direction of the connector.

8. The optical communication connector (100) as described in claim 7, characterized in that: The insulating body (1) has a stop groove (103) formed on the side facing the mating circuit board (200) near the relief opening (101), and the stop groove (103) is open along the pull-out direction of the mating connector. The main plate (41) is inserted into the stop groove (103) along the insertion direction of the mating connector.

9. The optical communication connector (100) as described in claim 8, characterized in that: The stop groove (103) is open on the side facing the mating circuit board (200), and the lower surface of the main body plate (41) is flush with the lower surface of the insulating body (1).

10. The optical communication connector (100) as described in any one of claims 1 to 9, characterized in that: The metal casing (3) includes a top wall (31), a bottom wall (32), two side walls (33) connecting the top wall (31) and the bottom wall (32), and a rear wall (34) connecting one end of the top wall (31) and the two side walls (33); The top wall (31), bottom wall (32), two side walls (33) and rear wall (34) together form the receiving cavity (301); A partition (35) is disposed between the top wall (31) and the bottom wall (32) to divide the receiving cavity (301) into an upper insertion cavity (3011) and a lower insertion cavity (3012); Along the insertion and removal direction of the mating connector, the upper insertion cavity (3011) is connected to the first slot (110), and the lower insertion cavity (3012) is connected to the second slot (120); The terminal module insertion port (30) is formed between the front edge of the bottom wall (32) and the rear wall (34) along the insertion direction of the docking connector, and connects the front part of the receiving cavity (301) along the insertion direction of the docking connector downward to the outside. The metal housing (3) is covered around the terminal module (10) through the terminal module implant port (30).

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