TWI594515B - Cable connector assembly - Google Patents

Description

Cable connector assembly

The present invention relates to a cable connector assembly, and more particularly to a cable connector assembly that can transmit signals at high speed.

High-speed connector SFP (Small Form-factor Pluggable), X-SFP and QSFP are widely used in optical fiber transmission or ordinary signal transmission, and its small size is its main feature. The smaller the size of the SFP high speed connector, the less space it occupies on the printed circuit board. Because of its small size, multiple boards can be connected to the board at the same time to support additional communication channels. However, because of its small size, it is difficult for the user to manipulate.

For example, when an SFP connector is inserted into the docking system for damage, we need to replace it with a new one, and it is easier to insert a new SFP connector, but pull out a bad connector, especially when the bad connector is around. When there are other connectors around, it is not easy to pull out the bad connector. In this way, the user may pull the cable of the SFP connector to pull it out of the docking system, which may cause the internal structure of the cable to be damaged due to external force.

For a prior art related to the present invention, reference is made to the U.S. Patent No. 8,829,002, issued Oct. 30, 2012, which discloses a cable connector assembly including a connector body and a connector body a connected cable and a holding member mounted on the connector body, the cable including a core wire passing through the holding member, a coating layer covering the core wire, and an outer layer covering the coating layer, the holding member including the mechanical component solid a holding portion held on the connector body and a connecting portion that is crimped to the front end of the cable. However, in this way, the connecting portion on the holding member is directly riveted to the outside of the cable, and the internal structure of the cable is easily touched during riveting, which is liable to cause damage to the internal structure of the cable.

For a further prior art related to the present invention, reference is made to the U.S. Patent No. 8,195,017 issued to Jun. 5, 2012, which discloses a cable connector assembly including a connector body and a connection. a cable connected to the body and a holding member mounted on the connector body, the cable including a core wire passing through the holding member, a coating layer covering the core wire, and an outer layer covering the coating layer, the holding member a retaining portion mechanically retained on the connector body, the cable connector assembly further comprising a stress relief member wrapped around the outer side of the cable and located at the rear end of the retaining portion, but in this design, the stress releasing member and the retaining member There is a gap between them, and they are not connected together. When the cable is subjected to an external force, the external force received by the cable cannot be transmitted to the holding member. This can easily lead to damage to the internal structure of the cable and affect the service life of the product.

In view of the above problems, it is necessary to improve the prior art to overcome the above drawbacks.

The technical problem to be solved by the present invention is to provide a cable connector assembly that can avoid damage to the internal structure of the cable during use.

To solve the above technical problem, the present invention provides a cable connector assembly including a cable connecting the connector body and the connector body, and a holding member fixedly mounted on the connector body, the cable including the through-holding a core wire of the piece, a coating layer covering the core wire, and an outer layer covering the cladding layer, the holding member includes a holding portion mechanically held on the connector body and a core wire and a cladding layer housed in the cable The interposing portion, the cable connector assembly further includes a connector disposed on the outer side of the cable and the holder to mechanically connect the cable and the holder to integrally transmit the external tensile force received by the cable to the solid Hold the piece.

Compared with the prior art, the insertion portion of the holder disclosed in the present invention is disposed between the core wire of the cable and the cladding layer, and the cable connector assembly is further disposed on the outer side of the cable and the holder to connect the cable with The holder is mechanically connected as an integral connector to transmit the external tensile force received by the cable to the holder, so that the design improves the yield of the product and is more suitable for large-scale production in the industry.

The specific implementation structure is as follows: the holding member includes an intermediate portion disposed between the holding portion and the insertion portion, the radial portion of the holding portion is larger than a radial size of the intermediate portion, and the radial portion of the intermediate portion is larger than the insertion portion Radial dimensions.

The connecting member is a plastic outer casing integrally formed on the outer layer of the cable and the outer side of the insertion portion and the intermediate portion of the holding member, so that the cable and the holding member are mechanically integrated into one body.

The connecting member is a metal rivet ring. After the rivet is crimped, the outer layer of the cable is mechanically clamped with the inserting portion of the holding member, so that the cable and the retaining member are mechanically integrated into one body.

The cable connector assembly further includes a stress relief element located at an intermediate portion of the holder and outside the rivet ring.

The strain relief element is interference fit with the aforementioned rivet ring.

The connector body includes a first housing and a second housing that are coupled to each other, and the first housing and the second housing are provided with positioning slots that cooperate with the retaining portions.

The cable is an optical fiber, the covering layer is a spun fiber, and the covering layer is turned outward to the outer layer and the insert Between the departments.

The holder is made of a metal material.

The holding portion has a square plate-like structure.

1‧‧‧Connector body

100‧‧‧Cable Connector Assembly

11‧‧‧ front end

12‧‧‧ Backend

13‧‧‧First housing

130‧‧‧First Main Body

1300‧‧‧ accommodating space

1301‧‧‧ side wall

1302‧‧‧ bottom wall

1303‧‧ ‧ gap

1304‧‧‧beam section

131‧‧‧First Installation Department

1310‧‧‧ side

1311‧‧‧The lower wall

1312‧‧‧First opening

1313‧‧‧First positioning slot

1314‧‧‧Stretching

1315‧‧‧Strip

1316‧‧‧First mounting hole

132‧‧‧The first depression

1320‧‧‧ Groove

1321‧‧‧ bumps

14‧‧‧Second housing

140‧‧‧Second Main Body

1400‧‧‧ base

1401‧‧‧ side edge

1402‧‧‧Bumps

141‧‧‧Second Installation Department

1410‧‧‧ side

1412‧‧‧Second opening

1413‧‧‧Second positioning slot

1416‧‧‧Second mounting hole

142‧‧‧Second depression

2,2’‧‧‧ Cable

21,21’‧‧‧core

22,22’‧‧‧ cladding

23,23’‧‧‧ outer layer

3,3’‧‧‧ holdings

31,31’‧‧‧ Holding Department

32,32’‧‧‧ Insertion Department

33,33’‧‧‧Intermediate

4‧‧‧Riveting ring

5‧‧‧ Stress relief components

5'‧‧‧ plastic case

6‧‧‧Fixed parts

61‧‧‧ screw

62‧‧‧ nuts

1 is a perspective structural view of a cable connector assembly according to a first embodiment of the present invention after removing a stress relief member; and a second diagram is an exploded view of a cable connector assembly according to a first embodiment of the present invention; The figure is an exploded view of another angle of the cable connector assembly shown in the second figure; the fourth figure is the assembly of the cable on the cable connector assembly shown in the second figure to the holder and the stress relief element. 3 is a cross-sectional view of the stress relief element shown in FIG. 4 after assembly of the cable and the holder; the sixth figure is a stress relief element and cable and holder according to the second embodiment of the present invention. The three-dimensional structure diagram after the assembly is completed; the seventh figure is a cross-sectional view of the stress relief element shown in the sixth figure after the cable and the holder are held.

Referring to Figures 1 through 5, a cable connector assembly 100 in accordance with a first embodiment of the present invention. The cable connector assembly 100 includes a cable 2 to which the connector body 1 is coupled to the connector body 1 and a holder 3 that is fixedly mounted on the connector body 1. The connector body 1 has a rear end 12 opposite to the front end 11 , and the front end 11 is provided with a circuit board (not shown) received in the connector body 1 for electrical transmission. The rear end 12 is connected to the above cable 2. The connector body 1 includes a first housing 13 and a second housing 14 engageable therewith. The second casing 14 of the first casing 13 is a die-cast metal casing or other metal plate body.

The first housing 13 includes a first body portion 130 , a first mounting portion 131 extending rearward from a rear surface of the first body portion 130 , and a first recess portion 132 connecting the first body portion 130 and the first mounting portion 131 . . The first body portion 130 has a pair of side walls 1301 and a bottom wall 1302 connected to the bottom of the side wall 1301. The bottom wall 1302 and the side wall 1301 together form a receiving space 1300. The front end of the bottom wall 1302 of the first body portion 130 is cut away to form a notch 1303. The first recessed portion 132 is formed with a recess 1320 in the bottom wall 1302 of the first housing 13 , and a protrusion 1321 is formed in the recess 1320 . The first body portion 130 further includes a beam portion 1304 at a front end of the side wall 1301 and connecting the two side walls 1301. The beam portion 1304 and the side wall 1301 and the bottom wall 1302 of the first casing 13 surround the notch 1303.

The first mounting portion 131 has a pair of side portions 1310, a lower wall 1311 connecting the pair of side portions 1310, and a first opening 1312 having a semicircular shape. The front end of the first opening 1312 is provided with a deeper first positioning groove. 1313, a pair of protruding portions 1314 are respectively disposed on two sides of the lower wall 1311, and each of the protruding portions 1314 includes a thin strip 1315 protruding from the rear portion thereof and is located in front of the thin strip 1315 and is recessed downward from the upper surface of the protruding portion 1314. A first mounting hole 1316 is formed.

The second housing 14 includes a second body portion 140 , a second mounting portion 141 extending rearward from a rear surface of the second body portion 140 , and a second recess portion 142 connecting the second body portion 140 and the second mounting portion 141 . . The second body portion 140 has a flat base portion 1400, a pair of side edges 1401 on both sides of the bottom surface thereof, and a plurality of bumps 1402 projecting from the inner surface of the side edge 1401. The second mounting portion 141 is provided with a pair of side portions 1410 , a second opening 1412 having a semicircular shape, and a pair of second portions disposed at the rear of the second mounting portion 141 . The hole 1416 is mounted, and the front end of the second opening 1412 is provided with a second deep positioning groove 1413. The first opening 1312 cooperates with the second opening 1412 to allow the cable 2 to pass through.

The cable 2 includes a core wire 21 that passes through the holding member 3, a coating layer 22 that covers the core wire 21, and an outer layer 23 that covers the cladding layer 22. In the present embodiment, the covering layer 22 is a spun fiber, and the covering layer 22 of the spun material can provide greater holding force between the connector body 1 and the cable 2 . In the present invention, the cable 2 is an optical fiber and can perform high-speed transmission of signals.

The holding member 3 is made of a metal material, and includes a holding portion 31 mechanically held on the connector body 1, an insertion portion 32 received between the core wire 21 of the cable 2 and the cladding layer 22, and a holding portion. The intermediate portion 33 between the 31 and the insertion portion 32. In the radial direction of the intermediate portion 33, the size of the holding portion 31 is larger than the size of the intermediate portion 33, and the radial portion of the intermediate portion 33 is larger than the radial size of the insertion portion 32. The holding portion 31 has a square plate shape, and the intermediate portion 33 and the insertion portion 32 have a cylindrical shape.

The cable connector assembly 100 further includes a connector disposed on the outer side of the cable 2 and the holder 3 to mechanically connect the cable 2 and the holder 3 to transmit the external tension received by the cable 2 to the holder 3 . on. In the first embodiment, the connecting member is a metal rivet ring 4, and the rivet ring 4 is crimped to mechanically clamp the outer layer 23 of the cable 2 and the insertion portion 32 of the holding member 3 to realize the aforementioned line. The cable 2 is mechanically coupled to the holder 3 in one piece. The cable connector assembly 100 further includes a strain relief element 5 located intermediate the intermediate portion 33 and the rivet ring 4. The strain relief element 5 is interference-fitted with the rivet ring 4.

The cable connector assembly 100 further includes a plurality of fasteners 6. In the embodiment, the fixing member 6 is a screw. The fixing member 6 is in the shape of a rod and includes a screw 61 and a nut 62. The fixing member 6 can pass through the corresponding first mounting hole 1316 and the second mounting hole 1416 for fixing the first housing 13 and the second housing 14 together. Start.

When assembled, the outer layer 23 of the front end of the cable 2 is stripped to expose the spun, then the spun is everted, then the rivet 4 is sleeved on the front end of the cable 2, and then the core 21 is passed through. The holder 3, at which time the insertion portion 32 of the holder 3 is received between the core wire 21 of the cable 2 and the cladding layer 22, and then the rivet ring 4 is crimped to hold the outer layer 23 of the cable 2 The insertion portion 32 of the piece 3 is mechanically clamped, and the cable 2 and the holder 3 are mechanically coupled to each other. When the cable 2 is subjected to external pulling force, the force can be directly transferred to the holding member 3, the rivet ring 4 and the outer layer 23 of the cable 2, thereby avoiding damage to the internal structure of the cable 2 and increasing the service life of the product. . Then, the cable 2 is connected to the circuit board, and the assembled structure is placed on the second housing 14 , and the first housing 13 is assembled to the second housing 14 through the fixing member 3 , wherein the holding portion is The 210 is received in the positioning groove formed by the first positioning groove 1313 and the second positioning groove 1413 and can cooperate with the holding portion 31. Finally, the stress relief element 5 is sleeved on the rear end of the holding portion 31, and positioned at the outer side of the intermediate portion 32, the rivet 4, and the front end of the cable 2.

Referring to FIG. 6 and FIG. 7 , in order to implement the second embodiment of the present invention, in the present embodiment, the cable connector assembly (not shown) is provided with a cable 2 ′, and the cable 2 is provided. 'The passing retaining member 3' and the connecting member disposed outside the cable 2' and the holding member 3' to mechanically connect the cable 2' with the holding member 3'.

The cable 2' includes a core wire 21' passing through the holder 3', a cladding layer 22' covering the core wire 21', and an outer layer 23' covering the cladding layer'. In the present embodiment, the covering layer 22' is a spun fiber, and the clad material coating layer 22' can provide a greater holding force between the connector body (not shown) and the cable 2'. The cable 2' is an optical fiber and can perform high-speed transmission of signals.

The holder 3' is made of a metal material including mechanically held on the connector body The upper holding portion 31', the insertion portion 32' housed between the core wire 21' of the cable 2' and the cladding layer 22', and the intermediate portion 33' provided between the holding portion 31' and the insertion portion 32'. In the radial direction of the intermediate portion 33', the size of the holding portion 31' is larger than the size of the intermediate portion 33', and the radial portion of the intermediate portion 33' is larger than the radial size of the insertion portion 32'. The holding portion 31' has a square plate shape, and the intermediate portion 33' and the insertion portion 32' have a cylindrical shape.

In the second embodiment, the connecting member is a plastic outer casing 5' integrally formed on the outer layer 23' of the cable 2' and the insertion portion 32' and the intermediate portion 33 of the holding member 3'. On the outer side of the ', the aforementioned cable 2' is mechanically connected to the holder 3'. When the cable 2' is subjected to an external pulling force, the plastic casing 5' transmits a force to the holding member 3', preventing the internal structure of the cable 2' from being damaged.

When assembled, the outer layer 23' of the front end of the cable 2' is stripped to expose the spun, then the spun is everted, and then the core 21' is passed through the holder 3', at which time the holder 3 'The insertion portion 32' accommodates between the core wire 21' of the cable 2' and the cladding layer 22', and then integrally molds the plastic casing 5' to the insertion portion 32' of the outer layer 23' and the holder 3' and The outer side of the intermediate portion 33' realizes mechanical connection of the cable 2' with the holder 3'. When the cable 2' is subjected to an external pulling force, the force is directly transferred to the holding member 3' and the outer layer 23' of the cable 2', thereby preventing the internal structure of the cable 2' from being damaged, thereby increasing the use of the product. life. Thus, the assembly of the plastic outer casing 5' with the cable 2' and the holder 3' is completed.

The above are only the best embodiments of the present invention, and are not all or the only embodiments. Any equivalent changes taken by those skilled in the art by reading the specification of the present invention are all of the present invention. Covered by the claims.

1‧‧‧Connector body

100‧‧‧Cable Connector Assembly

11‧‧‧ front end

12‧‧‧ Backend

2‧‧‧ Cable

Claims (10)

A cable connector assembly comprising: a connector body; a holder, the holder is fixedly mounted on the connector body; a cable, the cable is connected to the connector body, and the cable includes a core of the holding member, a coating layer covering the core wire, and an outer layer covering the coating layer; wherein the holding member comprises a holding portion mechanically held on the connector body and a core wire and a sheath housed in the cable An insertion portion between the layers, the cable connector assembly further comprising a connector disposed on the outer side of the cable and the holder to mechanically connect the cable and the holder to integrally transmit the external tensile force received by the cable to the holder on. The cable connector assembly of claim 1, wherein the holding member includes an intermediate portion disposed between the retaining portion and the insertion portion, and the retaining portion has a size larger than the middle portion in a radial direction of the intermediate portion The size of the portion, the radial dimension of the intermediate portion being greater than the radial dimension of the insertion portion. The cable connector assembly of claim 2, wherein the connecting member is a plastic outer casing integrally formed on an outer side of the cable and an outer side of the insertion portion and the intermediate portion of the holding member. The mechanical connection between the aforementioned cable and the holding member is realized. The cable connector assembly of claim 2, wherein the connecting member is a metal riveting ring, and the riveting ring mechanically clamps the outer layer of the cable and the inserting portion of the holding member after riveting The mechanical connection between the aforementioned cable and the holding member is realized. The cable connector assembly of claim 4, wherein the cable connector assembly further comprises a stress relief element located at an intermediate portion of the holder and outside the rivet ring. The cable connector assembly of claim 5, wherein the stress relief element is in interference fit with the rivet. The cable connector assembly of claim 1, wherein the connector body comprises a first housing and a second housing that are coupled to each other, and the first housing and the second housing are provided a positioning groove that cooperates with the aforementioned holding portion. The cable connector assembly of claim 1, wherein the cable is an optical fiber, the cladding layer is a spun fiber, and the cladding layer is turned outward between the outer layer and the insertion portion. The cable connector assembly of claim 1, wherein the holder is made of a metal material. The cable connector assembly of claim 1, wherein the retaining portion is a square plate-like structure.