CN215119296U

CN215119296U - SFP cage assembly suitable for surface mounting and electric connector thereof

Info

Publication number: CN215119296U
Application number: CN202121379983.6U
Authority: CN
Inventors: 田立春; 程牧; 曾波
Original assignee: Suzhou Yihua Communicated Connector Co ltd
Current assignee: Suzhou Yihua Communicated Connector Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-10
Anticipated expiration: 2031-06-21

Abstract

An SFP cage assembly adapted for use with a meter sticker, comprising: the metal cage is composed of metal plates, at least two insertion cavities which are parallel to each other along the extension direction of the butt circuit board are formed in the metal cage, an insertion opening is formed in one end of the metal cage, and the upper surface and the lower surface of the metal cage are formed in the metal cage; the surface mount pins are formed on the lower surface of the metal cage and used for being welded and fixed with the butt circuit board; the combination module is combined on the upper surface of the metal cage, and at least overlaps with the two insertion cavities along the projection in the vertical direction; the combination module can improve the flatness of the metal cage in the extending direction of the butt joint circuit board.

Description

SFP cage assembly suitable for surface mounting and electric connector thereof

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the field of communication transmission, in particular to an SFP cage assembly suitable for surface mounting and an electric connector thereof.

[ background of the invention ]

The connector assembly allows a user of the electronic device or external apparatus to transfer data to or communicate with other devices and apparatuses. Generally, a connector assembly includes a receptacle assembly disposed within an electronic device and a plug assembly that interfaces with the receptacle assembly. The receptacle assembly generally includes a cage assembly and a receptacle module. The cage assembly has an interior compartment in which the receptacle module is fixedly disposed for electrical connection with the receptacle module when the plug assembly is inserted therein.

Connector assemblies are typically built according to established standards of size and compatibility, such as Small Form factor Pluggable (SFP), XFP, Quad Small Form factor Pluggable (QSFP), Micro Quad Small Form factor Pluggable (Micro QSFP), or QSFP-DD (Quad Small Form-factor plug compatible Density).

Related prior art please refer to chinese patent application No. CN112510399A, which discloses a 2x6 bezel high speed electrical connector comprising a metal cage made of metal plate. Because the metal cage is generally formed by stamping and bending very thin metal sheets, and the high-speed electric connector has a multi-frame-mouth shape, the flatness of the metal cage is difficult to control in the production process. In the prior art, the contact pins fixed with the circuit board below the metal cage are generally made into a fish eye Pin mode, the fish eye Pin mode has the advantages that the transverse space of the connector can be saved, the main effect is that each fish eye Pin and the circuit board can achieve certain fixing force, and the flatness of the metal cage assembled on the circuit board can be better guaranteed. The disadvantage is that the fish eye Pin and the matching hole on the circuit board still have the possibility of loosening after a long time.

In the industry, the metal shell or the signal terminal of the common connector and the circuit board are generally fixed through a surface mounting process. Surface mounting is also called surface mounting technology, abbreviated as SMT, and a typical surface mounting process generally includes three steps: applying solder paste, mounting components and reflow soldering. Applying solder paste: proper amount of soldering paste is uniformly applied on the bonding pad of the PCB so as to ensure that the component and the corresponding bonding pad of the PCB can achieve good electrical connection and have enough mechanical strength during reflow soldering. Mounting components: the components are accurately pasted to the corresponding positions on the surface of the PCB printed with the soldering paste or the paste by a pasting machine or manually. And (3) reflow soldering: the English name is reflex soldering, which realizes the soldering of mechanical and electrical connection between the welding end or pin of a component and the pad of the printed board by re-melting the paste-mounted soft solder pre-distributed on the pad of the printed board.

However, in the surface mounting process, floating or drifting phenomena occur to the electric connector/metal cage (component) in the melting and curing processes of the soldering paste, and in addition, the metal cage formed by the thin metal sheet is deformed or bent at a high temperature in the reflow soldering process, so that the flatness of the metal cage cannot be ensured.

[ summary of the invention ]

It is an object of the present application to provide an SFP cage assembly suitable for surface mounting and an electrical connector therefor.

In order to achieve the above purpose, the present application is implemented by the following technical solutions:

an SFP cage assembly adapted for use with a meter sticker, comprising:

the metal cage is composed of metal plates, at least two insertion cavities which are parallel to each other along the extension direction of the butt circuit board are formed in the metal cage, an insertion opening is formed in one end of the metal cage, and the upper surface and the lower surface of the metal cage are formed in the metal cage;

the surface mount pins are formed on the lower surface of the metal cage and used for being welded and fixed with the butt circuit board;

the combination module is combined on the upper surface of the metal cage, and at least overlaps with the two insertion cavities along the projection in the vertical direction;

the combination module can improve the flatness of the metal cage in the extending direction of the butt joint circuit board.

Furthermore, the combination module is fixed with the upper surface of the metal cage through welding.

Further, the metal cage comprises a top plate, a bottom plate arranged opposite to the top plate, two side plates respectively positioned on two sides of the top plate and the bottom plate, and at least one partition plate positioned between the two side plates and arranged in parallel with the side plates, wherein the edge of one side of the partition plate, which is close to the bottom plate, forms the surface-mounted foot through blanking.

Further, the edges of one side, close to the bottom plate, of the two side plates form the surface-mounted feet through blanking.

Furthermore, the edges of one side, close to the bottom plate, of the two side plates are bent to form the surface attaching feet.

Furthermore, the combination module is made of metal materials and comprises a substrate and a radiating fin group formed by upward extending of the substrate.

Furthermore, a plurality of buckling pieces are formed on the metal cage, penetrate through the base plate and are bent and fixed with the combination module in a buckling mode.

Further, the projection of the combination module along the up-down direction covers seventy percent and more of the area of the upper surface of the metal cage.

Further, only one of the bonding modules is provided.

In order to achieve the above purpose, the present application is also achieved by the following technical solutions:

an electrical connector comprising an SFP cage assembly and a connector module as described above, adapted for surface mounting, said metal cage being arranged to cover the periphery of said connector module.

Compared with the prior art, the application has at least the following beneficial effects: when the metal cage and the butt joint circuit board are fixed through welding, the flatness of the metal cage can be improved.

[ description of the drawings ]

Figure 1 is a schematic perspective view of a first embodiment of an SFP cage assembly suitable for use in a meter patch of the present application.

Figure 2 is an exploded perspective view of the SFP cage assembly of figure 1 adapted for use with a watch.

Fig. 3 is a perspective view of fig. 2 from another angle.

Figure 4 is a perspective view of a second embodiment of an SFP cage assembly of the present application suitable for use in a watch.

Figure 5 is an exploded perspective view of the SFP cage assembly of figure 4 adapted for use with a watch.

Fig. 6 is a perspective view of fig. 5 from another angle.

[ detailed description ] embodiments

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 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.

It should be noted that, in order to avoid obscuring the present application with unnecessary details, only the structures and/or processing steps closely related to some embodiments of the present application are shown in the drawings, and other details that are not relevant to some embodiments of the present application are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

For a clearer description of the embodiments of the present application, all references to directions herein are made to fig. 1 or fig. 3, wherein the direction of the X-axis is defined as the left-right direction (i.e. the width direction of the elevated SFP high-speed connector module of the present application); wherein the direction of the Y axis is defined as the front-back direction (i.e. the plugging direction of the butting connector); wherein the direction of the Z axis is defined as the up-down direction, wherein the positive Z axis is the up direction.

Wherein fig. 1-3 are first embodiments of an SFP cage assembly suitable for a meter stick of the present application, and wherein fig. 4-6 are second embodiments of an SFP cage assembly suitable for a meter stick of the present application.

Referring to fig. 1 to 3, a first embodiment of an SFP cage assembly suitable for a surface patch of the present application is disclosed, wherein the SFP cage assembly suitable for a surface patch of the present application comprises: a metal cage 1 and a bonding module 2. The metal cage 1 is manufactured by a metal plate process and comprises a top plate 11, a bottom plate 12 arranged opposite to the top plate 11, two side plates 13 respectively positioned on two sides of the top plate 11 and the bottom plate 12, and a plurality of partition plates 14 positioned between the two side plates 13 and arranged in parallel with the side plates 13. The top plate 11, the bottom plate 12, the side plates 13 and the partition plate 14 define a plurality of plugging cavities 101 and form an insertion opening 102 at one end.

In the present application, the metal cage 1 further comprises a rear end plate 15 at an end remote from the insertion opening 102. A yielding hole 150 is formed between one end edge of the bottom plate 12 far away from the insertion hole 102 and the rear end plate 15, and the plurality of insertion cavities 101 are communicated with the outside along the vertical direction through the yielding hole 150. The SFP cage assembly suitable for surface mounting of the present application may further be adapted to cooperate with a connector module (not shown) to form an electrical connector, wherein the connector module may specifically be combined in the plugging cavity 101 and located at an end away from the insertion opening 102. The connector module may include an insulative housing (not shown) and a plurality of conductive terminals (not shown) integrated in the insulative housing, one end of each conductive terminal protruding downward from the relief hole 150 for contacting with a mating circuit board (not shown). A butting connector (not shown) is inserted into the inserting cavity 101 through the inserting opening 102 and correspondingly contacts with the conductive terminals, so as to realize signal transmission between the butting connector and the butting circuit board. The electric connector is actually an SFP type socket connector with a row of a plurality of parallel sockets.

Referring to fig. 1-3, the metal cage 1 defines an upper surface 111 and a lower surface 121. The upper surface 111 is actually the outer surface of the top plate 11, and the lower surface 121 is actually the outer surface of the bottom plate 12. In this application, the combination module 2 may be a heat dissipation module, and includes a substrate 21 and a heat dissipation fin set 22 formed by extending the substrate 21 upwards. The bonding module 2 is fixed to the upper surface 111 of the metal cage 1 by welding. The combination module 2 covers the plurality of plugging cavities 102 in the up-down direction.

The combination module 2 is used for heat dissipation on one hand, and on the other hand, is fixed with the upper surface 111 of the metal cage 1 through welding, so that the overall flatness of the metal cage 1 can be improved through the combination module 2 with a good surface degree. Of course, in the present application, the combination module 2 covering a plurality of plug cavities 102 in the up-down direction does not refer to the form in which the combination module 2 completely covers all plug cavities 102. Several plugging cavities 102 can be selectively covered; in addition, the above-mentioned combination module 2 covering a plurality of plug cavities 102 along the up-down direction does not refer to the area completely covering a certain plug cavity 102, but may refer to the area covering a plurality of plug cavities 102 and only covering a part of the area of each of the plug cavities 102, and the actual amount of coverage may be selected according to the specific flatness requirement.

Referring to fig. 3, the edge of the partition board 14 near the bottom board 12 is blanked to form a plurality of surface mount feet 103; the edge of the rear end plate 15 close to one side of the bottom plate 12 is blanked to form a plurality of surface mount feet 103; the edge of the side plate 13 close to one side of the bottom plate 12 is blanked to form a plurality of surface mount feet 103. The surface mount pins 103 are fixed to the butt circuit board by reflow soldering so as to fix the metal cage 1 to the butt circuit board. The blanking type surface mount foot 103 is more convenient to process, and the contact area with a butt circuit board can be saved. Of course, in other embodiments, some of the surface mount legs 103 may be designed to be bent, and the bent surface mount legs 103 can form a stronger holding force with the opposing circuit board, and at the same time, need to occupy a larger area of the opposing circuit board.

Referring briefly to fig. 4-6, a second embodiment of an SFP cage assembly suitable for use in a meter patch is disclosed, the second embodiment differing from the first embodiment only in that: the metal cage 1 is fixed differently from the bonding module 2. In the second embodiment, a plurality of fastening pieces 112 are formed on the metal cage 1, and the plurality of fastening pieces 112 pass through the base plate 21 and are bent to be fastened and fixed with the combining module 2. Specifically, the plurality of locking pieces 112 are formed by extending and bending the side plate 13 and the partition plate 14 upward away from one side edge of the butt circuit board. In order to ensure that the combination module 2 has an improvement effect on the flatness of the metal cage 1, the buckling pieces 112 are designed to be uniformly and regularly distributed, so that the flat surface of the combination module 2 can be completely attached to the upper surface of the metal cage 1.

In the present application, in order to achieve a better effect, it is preferable that the projection of the coupling module 2 in the up-down direction covers seventy percent and more of the area of the upper surface 111 of the metal cage 1.

This application combines on metal cage 1 through combining a monoblock large tracts of land and the better combination module 2 of plane degree, utilizes the rigidity that combination module 2 is stronger and the plane degree that improves metal cage 1 to realize metal cage 1 can with butt joint circuit board direct welded fastening, metal cage 1 can not appear the problem that metal cage 1 plane degree is difficult to the control because of the high temperature that produces during the welding, perhaps phenomenon such as welding come-up drift.

Although the present application has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present application.

Claims

1. An SFP cage assembly adapted for use with a meter, comprising:

2. The SFP cage assembly suitable for topical application of claim 1, wherein: and the combination module is fixed with the upper surface of the metal cage through welding.

3. The SFP cage assembly suitable for topical application of claim 1, wherein: the metal cage comprises a top plate, a bottom plate, two side plates and at least one partition plate, wherein the bottom plate is arranged opposite to the top plate, the two side plates are respectively positioned on two sides of the top plate and the bottom plate, the partition plate is positioned between the two side plates and is arranged in parallel with the side plates, and the edge of one side, close to the bottom plate, of the partition plate is formed by blanking.

4. The SFP cage assembly suitable for topical application of claim 3, wherein: the edges of one side, close to the bottom plate, of the two side plates form the surface-mounted feet through blanking.

5. The SFP cage assembly suitable for topical application of claim 3, wherein: the edges of one side, close to the bottom plate, of the two side plates are bent to form the surface-mounted feet.

6. The SFP cage assembly suitable for topical application of claim 1, wherein: the combination module is made of metal materials and comprises a substrate and a radiating fin group formed by upward extending of the substrate.

7. The SFP cage assembly suitable for topical application of claim 6, wherein: a plurality of buckling pieces are formed on the metal cage, penetrate through the base plate and are bent and fixed with the combination module in a buckling mode.

8. The SFP cage assembly suitable for topical application of claim 1, wherein: the projection of the combination module in the up-down direction covers seventy percent and more of the area of the upper surface of the metal cage.

9. The SFP cage assembly suitable for topical application of claim 1, wherein: the bonding module is provided with only one.

10. An electrical connector, comprising: comprising an SFP cage assembly suitable for surface mounting as claimed in any one of claims 1 to 9 and a connector module, said metal cage being housed peripherally to said connector module.