CN110703389A

CN110703389A - SFP connector

Info

Publication number: CN110703389A
Application number: CN201910958369.6A
Authority: CN
Inventors: 余强
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-01-17

Abstract

An SFP connector comprises a metal base, a metal upper cover fixed on the metal base, a connecting piece fixed between the metal base and the metal upper cover, an unlocking push block and a pull ring assembled between the metal base and the metal upper cover and positioned at the front end of the unlocking push block, wherein the metal upper cover comprises a covering main body and a front end part formed by forward extension of the covering main body, the front end part comprises a bottom plate part, a top plate part and an installation cavity penetrating the front end part in the front and back direction and positioned between the bottom plate part and the top plate part, the unlocking push block is inserted into the installation cavity from the front, a stepped part is formed at the joint of the covering main body of the metal upper cover and the front end part, and a reinforcing rib is formed at the bottom surface of the stepped part in a downward protruding mode. The metal upper cover of the SFP connector has good structural strength and is convenient to die-cast and form.

Description

SFP connector

Technical Field

The present application relates to the field of optical signal transmission connectors, and more particularly, to an SFP connector.

Background

The SFP connector is used for receiving an optical fiber plug to receive an optical signal, and includes a plug end connected to the optical fiber plug and plugged in a server or other equipment. The SFP connector comprises a metal base, a metal upper cover fixed above the metal base, an unlocking push block assembled at the front end of the metal upper cover and a pull ring used for pushing the unlocking push block. The metal upper cover is fixed in on the metal base through the screw at the front end, metal upper cover front end is equipped with and holds the installation cavity of unblock ejector pad, the metal upper cover is in installation cavity rear end forms step portion, because the existence of step portion, the metal upper cover is located the intensity of step portion position department is relatively weak, is unfavorable for the volume production. The upper surface of the traditional mounting cavity is of an exposed structure, so that unlocking is easy to break down due to interference caused by foreign objects; the front end of the traditional metal upper cover is provided with a clearance gap of a clearance pull ring, which is not beneficial to glue running and air exhaust during die-casting forming; the metal upper cover with the rear end of metal base passes through buckle structure to be fixed, and the front end passes through the fix with screw, and the buckle structure buckle cooperation of rear end is less, and is not hard up easily.

Disclosure of Invention

In view of the above, it is desirable to provide an SFP connector having a metal top cover with improved structural strength.

In order to solve the technical problem, the application provides an SFP connector, which comprises a metal base, an upper metal cover fixed on the metal base, a connecting piece fixed between the metal base and the upper metal cover, an unlocking push block and a pull ring assembled between the metal base and the upper metal cover and located at the front end of the unlocking push block, wherein the upper metal cover comprises a cover main body and a front end portion formed by forward extension of the cover main body, the front end portion comprises a bottom plate portion, a top plate portion and a front portion and a rear portion, the front end portion penetrates through the front end portion and is located in an installation cavity between the bottom plate portion and the top plate portion, the unlocking push block is inserted into the installation cavity from the front portion, a stepped portion is formed at the joint of the cover main body and the front end portion of the upper metal cover, and a reinforcing rib is formed at the bottom surface of the stepped portion in a downward protruding manner.

According to the metal upper cover, the reinforcing ribs are arranged at the bottom of the step part, so that the thickness of the step part is increased, the defect that the strength of the step part of the metal upper cover is weak is overcome, glue is convenient to flow during die-casting forming, and the problem that too thin molten metal is not smooth in flowing is avoided; meanwhile, a concave platform is arranged at the position, corresponding to the reinforcing rib, of the metal base to adapt to the increased thickness of the reinforcing rib.

Preferably, the metal base includes the diapire, certainly the lateral both sides wall that the lateral both sides of diapire upwards extend the formation, pass through the diapire with what the both sides wall encloses and establishes is used for fixing the accept cavity of connecting piece, the metal base forms the head at the front end, forms the afterbody at the rear end, the head rear end is sunken to be formed with and to accept the sunken platform of strengthening rib.

Preferably, the horizontal both sides of sunken platform are equipped with the screw hole, be equipped with on the strengthening rib certainly preceding tip runs through downwards the screw of strengthening rib, the rear end of metal base is equipped with the draw-in groove, the main part rear end that covers of metal upper cover is equipped with the card and goes into the fixture block in the draw-in groove.

Preferably, the clamping block of the metal upper cover is clamped in the clamping groove of the metal base, and simultaneously passes through the screw hole of the metal upper cover through a screw and is locked in the screw hole of the metal base.

Preferably, the head of the metal base further comprises a front limiting strip formed by upwards protruding the front end edge of the top, two rear limiting blocks formed on the left and right sides of the rear end of the front limiting strip, a limiting groove formed between the front limiting strip and the rear limiting blocks, and a cut-off part formed by cutting off the two transverse ends of the front limiting strip.

Preferably, the roof plate portion front end of metal upper cover is equipped with keeps away a breach or keeps away a hole, the horizontal both sides of installation cavity are equipped with the spring hole, the unblock ejector pad includes the bar main part, certainly the bar main part is preceding to be extended the stress end that forms, certainly the horizontal both sides of bar main part front end outwards extend the supporting part that forms and be formed at bar main part rear end with the middle breach that the locking piece corresponds, the supporting part with be equipped with the spring between the spring hole in order to apply forward elasticity for the unblock ejector pad. The upper surface of bottom plate portion with the upper surface parallel and level of cover the main part, it is located to cover the main part the installation cavity rear is equipped with the locking piece.

Preferably, the stress end include from the stress end upwards protrusion extend form spacing in keep away a spacing lug of breach rear end edge and certainly spacing lug front end is the atress inclined plane of slope forward, the supporting part include certainly the outside support arm that extends the formation of the horizontal both sides of bar main part front end reaches certainly the sleeve post that the support arm end extends the formation backward, the spring housing is located on the sleeve post, bar main part rear end is located the horizontal both sides of middle breach are formed with the oblique push surface.

Preferably, the pull ring comprises a first rod part, a push top part, a second rod part, a third rod part, a fourth rod part and a pull rod, wherein the first rod part is limited in the limiting groove to rotate, the push top part is formed by bending upwards from the middle of the first rod part and is positioned in a clearance gap of the metal upper cover, the second rod part is bent forwards from two free ends of the first rod part and extends into the cut-out part, the third rod part is bent downwards from a free end of the second rod part and extends to the front end of the head part, the fourth rod part is formed by extending backwards from a free end of the third rod part, and the pull rod is formed by relatively bending and extending from a free end of.

Preferably, when the metal upper cover is fixed on the metal base, the front end edge of the top plate portion is in pressure joint with the upper portion of the first rod portion, and when the pull ring is pulled, the pushing portion pushes against the stress inclined surface.

Preferably, the metal base and the metal upper cover are further provided with a first concave holding groove and a second concave holding groove which are respectively formed in a concave manner, the SFP connector further comprises a fastener, the fastener comprises a bottom cladding portion located in the first concave holding groove on the bottom surface of the metal base, side cladding portions formed by upward bending and extending from the two transverse sides of the bottom cladding portion, buckling portions formed by opposite bending of the side cladding portions, and a clamping piece formed on the buckling portions in a stamping manner, the second concave holding groove is provided with a clamping hole, and the clamping piece is buckled in the clamping hole in the second concave holding portion.

The installation cavity of the metal upper cover of the SFP connector is provided with an upper side face and a lower side face, and an unlocking push block in the installation cavity is in a fully-coated state, so that the SFP connector is not influenced by external factors, and the unlocking function is more stable and reliable.

Keep away position hole structure and make things convenient for die-casting exhaust, walk and glue during the metal upper cover.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective assembly view of an SFP connector of the present application;

FIG. 2 is an exploded perspective view of an SFP connector of the present application;

FIG. 3 is a perspective view of a metal chassis of the SFP connector of the present application;

FIG. 4 is a front perspective view of a metal top cover of the SFP connector of the present application;

FIG. 5 is a reverse perspective view of the metal top cover of the SFP connector of the present application;

fig. 6 is a front perspective view of a metal top cover of the SFP connector of the present application;

FIG. 7 is a perspective view of an unlocking push block of the SFP connector of the present application;

FIG. 8 is a perspective view of a tab of the SFP connector of the present application;

FIG. 9 is a sectional view taken along the line A-A in FIG. 1

Fig. 10 is a perspective assembly view of a second embodiment of the SFP connector of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 6, the SFP connector of the present application includes a metal base 20, a metal top cover 10 fixed above the metal base 20, a connecting member 60 fixed between the metal base 20 and the metal top cover 10, an unlocking push block 30 assembled at a front end of the metal top cover 10, and a pull ring 40 assembled between the metal base 20 and the metal top cover 10 and located at a front end of the unlocking push block 30.

The metal base 20 includes a bottom wall 21, two side walls 22 extending upward from two lateral sides of the bottom wall 21, and an accommodating cavity 26 enclosed by the bottom wall 21 and the two side walls 22 and used for fixing the connecting member 60. The metal base 20 further includes a head portion 23, a tail portion 24, and a receptacle 25 penetrating the head portion 23 in the inserting and extracting direction. The top of the two side walls 22 near the tail portion 24 is provided with a locking groove 221, and the locking groove 221 is a protruding piece 222 formed by protruding from the top end of the two side walls 22 toward the head portion 23 and is formed below the protruding piece 222. The two side walls 22 form a first concave holding groove 223 at a position near the head 23.

The head 23 includes a front limiting strip 231 formed by upwardly protruding at the front end edge of the top, two rear limiting blocks 232 formed at the left and right sides of the rear end of the front limiting strip 231, a limiting groove 233 formed between the front limiting strip 231 and the rear limiting blocks 232, a cut-off portion 234 formed by cutting off the two transverse ends of the front limiting strip 231, and a recessed platform 235 formed by recessing from the rear end of the head 23. Screw holes 236 are formed at both lateral sides of the depressed platform 235.

The connector 60 includes an input end 61 extending forward into the head portion 22 and communicating with the receptacle 25, an output end 62 extending into the tail portion 23, and a plurality of components 63. The input end 61 is connected with the optical fiber plug through the jack 25, and the optical signal is processed by the component 63 and then output through the output end 62.

Referring to fig. 4 to 6, the metal upper cover 10 includes a cover body 11 and a front end portion 12 formed in front of the cover body 11. The upper surface of the covering main body 11 is lower than the upper surface of the front end portion 12, and the two lateral sides of the rear end of the covering main body 11 are provided with clamping blocks 111 clamped in the clamping grooves 221. The covering body 11 forms second concave holding grooves 17 on the two lateral sides close to the front end 12 and the outer side of the upper surface, and the upper surface of the second concave holding grooves 17 is provided with a clamping hole 171. The front end portion 12 includes a bottom plate portion 122, a top plate portion 121, a mounting cavity 123 formed between the bottom plate portion 122 and the top plate portion 121, and spring holes 124 formed on both lateral sides of the mounting cavity 123. The mounting cavity 123 penetrates in the front-rear direction and extends to the upper surface of the cover body 11, the bottom plate portion 122 is flush with the surface of the cover body 11, a lock piece 16 is formed on the upper surface of the cover body 11 in a protruding manner in the rear direction corresponding to the mounting cavity 123, and an inclined guide surface 161 is formed on the rear end surface of the lock piece 16. The spring holes 124 are located at both lateral sides of the mounting cavity 123 and have rear ends penetrating therethrough. The front end of the top plate 121 is provided with a clearance gap 141.

The joint of the front end part 12 of the metal upper cover 10 and the cover main body 11 forms a step part 13, the bottom surface of the step part 13 protrudes downwards to form a reinforcing rib 131, and screw holes 15 penetrating downwards from the upper surface of the front end part 12 are arranged on two transverse sides of the reinforcing rib 131. The reinforcing rib 131 is fastened on the recessed platform 235 of the metal base 20 and locked in the screw hole 236 of the metal base 20 by a screw (not shown) passing through the screw hole 15 of the metal upper cover 11; at this time, the latch 111 at the rear end of the metal upper cover 11 is latched in the latch groove 221 of the metal base 20.

The metal upper cover 10 of the present application is provided with the reinforcing rib 131 at the bottom of the step portion 13, so that the thickness of the step portion 13 is increased, and the defect that the strength of the step portion 13 of the metal upper cover 10 is weak is solved; meanwhile, a concave platform 235 is arranged at the position of the metal base 20 corresponding to the reinforcing rib 131 to adapt to the increased thickness of the reinforcing rib 131.

As shown in fig. 2, the SFP connector of the present application further includes a fastener 50 surrounding the metal base 20 and the first and second concave holding grooves 223, 17 of the metal top cover 10, where the fastener 50 includes a bottom cladding portion 51 located at the bottom of the metal base 20, side cladding portions 52 formed by bending and extending upward from the two lateral sides of the bottom cladding portion 51, fastening portions 53 formed by bending the side cladding portions 52 relatively, and fastening pieces 54 formed on the fastening portions 53 by punching, the fastening portions 53 cover the second concave holding portions 17 on the two lateral sides of the top surface of the metal top cover 10, and the fastening pieces 54 are fastened in fastening holes 171 on the second concave holding portions 17.

As shown in fig. 7, the unlocking push block 30 includes a bar-shaped main body 31, a force-bearing end 32 formed by extending the bar-shaped main body 31 forward, a support portion 34 formed by extending the bar-shaped main body 31 from two lateral sides of the front end of the bar-shaped main body 31 outward, and a middle gap 36 formed at the rear end of the bar-shaped main body 31.

The force-bearing end 32 includes a limiting protrusion 321 formed by upward protruding and extending from the force-bearing end 32 and a force-bearing inclined surface 322 inclined forward from the front end of the limiting protrusion 321. The supporting portion 34 includes a supporting arm 341 extending outward from two lateral sides of the front end of the bar-shaped main body 31 and a sleeve column 342 extending backward from the end of the supporting arm 341. A thin exposed portion 35 is formed at the rear end of the strip-shaped body 31, the middle notch 36 is located at the rear end edge of the exposed portion 35, and the exposed portion 35 is located on the inclined pushing surface 351 formed at both lateral sides of the middle notch 36. The rear end of the limiting bump 321 is limited at the rear end edge of the avoiding notch 141 to prevent the unlocking push block 30 from moving backwards excessively.

As shown in fig. 8, the pull ring 40 includes a first rod portion 41 limited in the limiting groove 233 for rotation, a push top portion 42 bent upward from the middle of the first rod portion 41 and located in the clearance gap 141 of the metal upper cover 10, a second rod portion 43 bent forward and extended from two free ends of the first rod portion 41, a third rod portion 44 bent downward from a free end of the second rod portion 43 and extended from a front end of the head portion 23, a fourth rod portion 45 extended rearward from a free end of the third rod portion 44, and a pull rod 46 bent and extended from a free end of the fourth rod portion 45. The pulling rod 46 is sleeved with a handle 47. The directional description of this paragraph refers to the situation shown in fig. 1 and 8. The second rod portion 42 extends to both lateral sides of the front end surface of the head portion 12 along the cut-outs 234 at both lateral sides of the front stopper bar 231 and forms the third rod portion 44.

Referring to fig. 1 to 9, when assembling the SFP connector of the present application, the connecting member 60 is first fixed in the metal base 20; the first rod part 41 of the pull ring 40 is limited in the limiting groove 233 of the metal base 20; inserting the unlocking push block 30 into the mounting cavity 123 of the front end portion 12 of the metal upper cover 10 from front to back, at this time, the sleeve column 342 of the unlocking push block 30 corresponds to the spring hole 124 on both lateral sides of the mounting cavity 123, a spring (not shown) is arranged on the sleeve column 342, and the other end of the spring is located in the spring hole 124 to apply forward elastic force to the unlocking push block 30, so that the unlocking push block 30 is in a non-unlocking state in a natural state; then, the fixture block 111 at the rear end of the covering main body 11 of the metal upper cover 10 is clamped into the fixture holes 221 at the rear ends of the two side walls 22 of the metal base 20, the reinforcing rib 131 of the metal upper cover 10 is clamped into the recessed platform 235 of the metal base 20, the metal upper cover 10 and the metal base 20 are locked by screws, the front end of the top plate portion 121 of the front end portion 12 of the metal upper cover 10 is pressed on the first rod portion 41 of the pull ring 40 to limit the pull ring 40, and the push-out portion 42 of the pull ring 40 is exposed out of the clearance gap 141; finally, the fastener 50 is fastened to the metal base 20 and the metal top cover 10.

When the SFP connector is used, one end of the handle of the pull ring 40 is rotated clockwise, so that the pushing top portion 42 of the pull ring 40 is converted from the vertical state to the horizontal state and finally abuts against the force-bearing inclined surface 322 of the force-bearing end 32 of the unlocking push block 30, and the unlocking push block 30 is pushed to move backwards, so that the rear end of the exposed portion 35 is close to the lock block 16, and the components of the external device locked on the lock block 16 are forced to be unlocked from the lock block 16, thereby realizing the extraction of the SFP connector from the external device.

The mounting cavity 123 of the metal upper cover 10 of the SFP connector of the present application is provided with an upper side surface and a lower side surface, and the unlocking push block 30 in the mounting cavity 123 is in a fully-coated state, so that the unlocking function is more stable and reliable and cannot be influenced by external factors.

Referring to fig. 10, a second embodiment of the present application is illustrated, except that the clearance gap 141 at the front end of the front end portion 12 of the metal upper cover 10 is a clearance hole 142, so that a transversely integrated pressure strip 125 is formed in front of the clearance hole 142, and the pressure strip 125 is pressed on the first rod portion 41 with better strength and more stable. Meanwhile, the avoiding hole 142 structure facilitates die casting of the metal upper cover 10 for exhausting and glue running.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An SFP connector comprises a metal base, a metal upper cover fixed on the metal base, a connecting piece fixed between the metal base and the metal upper cover, an unlocking push block and a pull ring assembled between the metal base and the metal upper cover and positioned at the front end of the unlocking push block.

2. The SFP connector as recited in claim 1, wherein the metal base comprises a bottom wall, two side walls extending upwards from two lateral sides of the bottom wall, and a receiving cavity defined by the bottom wall and the two side walls for fixing the connecting member, the metal base forms a head at the front end and a tail at the rear end, and the head is recessed at the rear end to form a recessed platform for receiving the reinforcing rib.

3. The SFP connector as claimed in claim 2, wherein screw holes are formed at both lateral sides of the recessed platform, screw holes are formed in the reinforcing ribs and penetrate the reinforcing ribs from the front end portion downward, a locking groove is formed at the rear end of the metal base, and a locking block which is locked in the locking groove is formed at the rear end of the covering body of the metal upper cover.

4. The SFP connector as recited in claim 3, wherein the latch of the metal top cover is snapped into the latch of the metal base while passing through the screw hole of the metal top cover by a screw and locking into the screw hole of the metal base.

5. The SFP connector as claimed in claim 2, wherein the head of the metal base further comprises a front stopper formed to protrude upward at a front end edge of the top, two rear stoppers formed at left and right sides of a rear end of the front stopper, a stopper groove formed between the front stopper and the rear stopper, and cut-outs formed by cutting off both lateral ends of the front stopper.

6. The SFP connector as claimed in claim 5, wherein the front end of the top plate of the metal top cover is provided with a space-avoiding notch or a space-avoiding hole, the two lateral sides of the mounting cavity are provided with spring holes, the unlocking push block comprises a bar-shaped main body, a stressed end formed by extending from the front of the bar-shaped main body, a supporting part formed by extending from the two lateral sides of the front of the bar-shaped main body outwards, and a middle notch formed at the rear end of the bar-shaped main body and corresponding to the locking block, and a spring is arranged between the supporting part and the spring hole to apply a forward elastic force to the unlocking push block. The upper surface of bottom plate portion with the upper surface parallel and level of cover the main part, it is located to cover the main part the installation cavity rear is equipped with the locking piece.

7. The SFP connector as claimed in claim 6, wherein the force bearing end comprises a limiting projection formed by upward protruding and extending from the force bearing end and limiting at the rear end edge of the avoiding gap and a force bearing inclined plane inclined forwards from the front end of the limiting projection, the supporting part comprises a supporting arm formed by outward extending from the two lateral sides of the front end of the strip-shaped main body and a sleeve column formed by backward extending from the tail end of the supporting arm, the spring is sleeved on the sleeve column, and the oblique pushing surfaces are formed at the two lateral sides of the middle gap at the rear end of the strip-shaped main body.

8. The SFP connector as recited in claim 7, wherein the pull ring comprises a first rod part which is limited in the limiting groove to rotate, a push top part which is formed by bending upwards from the middle of the first rod part and is positioned in the position avoiding gap of the metal upper cover, a second rod part which is bent forwards from two free ends of the first rod part and extends into the cutting part, a third rod part which is bent downwards from the free end of the second rod part and extends to the front end of the head part, a fourth rod part which is formed by extending backwards from the free end of the third rod part, and a pull rod which is formed by bending and extending oppositely from the free end of the fourth rod part.

9. The SFP connector of claim 8, wherein when the metal top cover is secured to the metal base, the front edge of the top plate portion is crimped over the first rod portion, and when the pull ring is pulled, the push top portion pushes against the force-receiving sloped surface.

10. The SFP connector of claim 1, wherein the metal base and the metal cover further have a first and a second concave holding grooves formed on the covering body, the SFP connector further comprises a fastener, the fastener comprises a bottom cladding portion located in the first concave holding groove on the bottom surface of the metal base, side cladding portions formed by bending and extending upward from two lateral sides of the bottom cladding portion, buckling portions formed by bending and bending the side cladding portions relatively, and a clamping piece formed on the buckling portions by punching, the second concave holding groove is provided with a clamping hole, and the clamping piece is buckled in the clamping hole on the second concave holding portion.