CN219555367U

CN219555367U - Optical module cage

Info

Publication number: CN219555367U
Application number: CN202320575854.7U
Authority: CN
Inventors: 陈正迁; 孙郅东; 冯成成
Original assignee: Jiangsu Xinchuanglian Precision Electronics Co ltd
Current assignee: Jiangsu Xinchuanglian Precision Electronics Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-08-18
Anticipated expiration: 2033-03-22

Abstract

The utility model relates to the field of electric connectors, and provides an optical module cage. Including upper cover and lower cover, the lower cover is installed in the upper cover bottom and is formed one end open-ended box body, and the upper cover is equipped with first shell fragment with the corresponding one end of box body open end, and the middle part of the one end that the lower cover is close to the open end is equipped with the second shell fragment, and the second shell fragment upwards bends from the lower cover plane, is equipped with the lockhole on the shell fragment, and the lockhole cooperates with the latch hook that optical module bottom corresponds. The optical module is further fixed by extruding the first elastic sheet and the second elastic sheet at two points to form stable clamping and matching the locking hole on the second elastic sheet with the locking hook at the bottom of the optical module. The outer spring plates are arranged on the four sides of the opening end of the cage, the box body is clamped at the mounting hole of the server or the panel through the outer spring plates, the cage can be effectively limited and fixed, and the vibration and impact resistance is improved.

Description

Optical module cage

Technical Field

The utility model relates to the field of electric connectors, in particular to an optical module cage.

Background

The optical module is a generic name of various module types, and specifically comprises an optical receiving module, an optical transmitting module, an optical transceiver module, an optical forwarding module and the like. The optical module generally refers to an optical transceiver module, which converts an optical signal into an electrical signal and converts the electrical signal into an optical signal, and is one of core devices of an optical fiber communication system.

With the rapid development of optical communication, metal medium communication represented by coaxial cables and network cables is gradually replaced by optical fiber medium. Particularly, the large-scale starting of 5G network construction, the rapid development of cloud computing and the batch construction of large-scale data centers are added, and the demand of optical modules is becoming more urgent.

The optical module is generally mounted on the printed circuit board through a cage, and because the transmission rate of the optical module is high and the frequency is high, the optical module needs to be shielded at high frequency, and meanwhile, the heat is high, and the optical module needs to be effectively radiated in the use process. The general optical module supports hot plug, so the cage is required to be capable of stably fixing the optical module besides the shielding and heat dissipation functions, the optical module is convenient to plug, and stable signal transmission of the optical module is maintained under certain vibration and impact.

Disclosure of Invention

The utility model provides an optical module cage which meets the hot plug and anti-vibration impact capability of an optical module through structural design on the premise of ensuring heat dissipation and shielding.

The technical scheme adopted by the utility model is as follows:

the utility model provides an optical module cage, includes upper cover and lower cover, and the lower cover is installed in the box body that the upper cover bottom formed one end open-ended, and optical module inserts in the box body from box body open end, and the top of upper cover is equipped with the heat dissipation window, and the heat dissipation window department installs the radiator, the radiator is fixed in the upper cover by the fastener, the bottom of upper cover side is equipped with a plurality of fisheye feet, fisheye foot and the cooperation of printed circuit board's plate hole, the upper cover is equipped with first shell fragment with the one end that the box body open end corresponds, and first shell fragment is located the box body, and first shell fragment stiff end is connected in the medial surface of upper cover, and when optical module inserts, the free end of first shell fragment provides the damping opposite with the direction of inserting; the middle part of the end of the lower cover, which is close to the opening end, is provided with a second elastic piece, the second elastic piece is bent upwards from the plane of the lower cover, the elastic piece is provided with a lock hole, and the lock hole is matched with a lock hook corresponding to the bottom of the optical module.

Further, the four outer side surfaces of the opening end of the box body are respectively welded with an outer elastic sheet, and the fixed ends of the outer elastic sheets are welded with the edges of the four sides of the opening end of the box body.

Further, the middle part of the outer elastic sheet is convex, and the free end of the outer elastic sheet is contacted with the corresponding outer side surface of the box body or a gap is reserved between the free end of the outer elastic sheet and the corresponding outer side surface of the box body.

Further, the radiator comprises a substrate, a plurality of rows of radiating fins are arranged at the top of the substrate, a contact block matched with the radiating window is arranged at the bottom of the substrate, and the contact block is embedded into the radiating window and is attached to the optical module in the box body.

Further, the top surface of the base plate is provided with a mounting groove matched with the buckle.

Further, the buckle comprises a pair of side plates and a buckle between the pair of side plates, the pair of side plates are correspondingly connected with the side surfaces of the upper cover, and the buckle is correspondingly matched with the mounting groove on the top surface of the base plate.

Further, the fastener is a concave connecting piece, the middle section of the connecting piece is a horizontal section, and the middle section of the connecting piece is in extrusion fit with the mounting groove.

Further, upper cover pins are arranged at bottoms of two side faces of the upper cover, the upper cover pins are located at two sides of the fish-eye pins, eccentric interference points are arranged at the bottom ends of the upper cover pins, and the eccentric interference points face to one side, away from the corresponding fish-fork pins, of the upper cover pins.

Further, two sides of the bottom surface of the lower cover are respectively provided with a lower cover pin, and the lower cover pins are bent towards the outer side of the lower cover in the width direction.

Still further, the upper cover is connected with the lower cover through tearing convex points and holes in a buckling way.

After the technical scheme is adopted, the beneficial effects of the utility model are as follows:

a pair of first shell fragment that sets up of jack is kept away from in the box, sets up the second shell fragment at the tip of lower cover, and after the optical module was packed into the cage, two-point extrusion through first shell fragment and second shell fragment to optical module formed stable centre gripping to through the lockhole on the second shell fragment and the latch hook cooperation of optical module bottom, with optical module further fixed, make optical module can bear vibration and impact, keep signal transmission's stability. When hot plug, push down the second shell fragment, contact the locking of optical module terminal surface and latch hook, the elasticity of first shell fragment pops out the optical module from the open end, simple operation.

The outer spring plates are arranged on the four sides of the opening end of the cage, the box body is clamped at the mounting hole of the server or the panel through the outer spring plates, the cage can be effectively limited and fixed, the vibration and impact resistance is improved, and the problems of plugging damage, plugging dislocation and the like caused by the yielding of the cage can be avoided when the optical module is plugged.

The upper cover top sets up the heat dissipation window, and the radiator embedding heat dissipation window is interior and with optical module contact, can better transfer heat, gives off optical module's heat, improves its life and stability.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a bottom view of the present utility model.

Fig. 3 is a schematic structural diagram of a heat sink.

In the figure: the heat sink comprises an upper cover 1, fish eye feet 11, upper cover pins 12, interference points 13, a heat window 14, a first elastic piece 15, a heat sink 2, a base plate 21, a heat radiating fin 22, a contact block 23, a buckle 3, a side plate 31, a fastener 32, a lower cover 4, a vertical mounting surface 41, lower cover pins 42, a second elastic piece 43, a lock hole 44, an outer elastic piece 5, a hole 6, a tearing boss 7 and a connecting window 8.

Detailed Description

The following detailed description of the utility model refers to the accompanying drawings, which illustrate specific embodiments of the utility model:

as shown in the figure, the optical module cage consists of an upper cover 1, a radiator 2, a buckle 3, a lower cover 4 and an outer spring piece 5.

The upper cover 1 is composed of a top surface, a pair of side surfaces and a rear end surface, wherein the rear end surface can be integrated with the upper cover or can be a separate piece and arranged at the end parts of the two side surfaces of the upper cover 1. The lower cover 4 is arranged at the bottom of the upper cover 1, two sides of the lower cover 4 extend upwards to form a vertical mounting surface 41, the vertical mounting surface is attached to the outer sides of two side surfaces of the upper cover 1, and a row of holes 6 are buckled with the tearing bosses 7 to form fixed connection. The lower cover 4 and the upper cover 1 form a box body with an opening at the front end. The optical module inserts in the box body from the front end opening part of box body, and upper cover 1 and lower cover 4 are the metal material, can shield high frequency signal.

The bottoms of the two side surfaces of the upper cover 1 are respectively provided with a row of fish-eye feet 11, and the upper cover 1 is fixed by the extrusion fit of the fish-eye feet 11 and the mounting holes on the printed circuit board. The upper part of the fish eye foot 11 is provided with a horizontal convex table surface, the horizontal convex table surface is used for limiting with a printed circuit board, the inserting depth is controlled, and the mounting precision is ensured. Because the fish-eye pins 11 are hard interfered with the mounting holes in a squeezing deformation mode, in order to reduce the insertion force during mounting and ensure the stability of connection, the two sides of part of the fish-eye pins are respectively provided with an upper cover pin 12, the head of the upper cover pin 12 is provided with an eccentric interference point 13, the interference point 13 deviates to one side of the upper cover pin 12 along the length direction of the upper cover, and the interference point 13 interferes with the mounting holes on the printed circuit board to supplement the fixing mode.

The two sides of the bottom surface of the lower cover 4 are respectively provided with a lower cover pin 42, the lower end of the lower cover pin 42 is bent outwards along the width direction of the lower cover, and the bent lower cover pin 42 can also form interference fit with a corresponding mounting hole of the printed circuit board. The entire cage is stably fixed to the printed circuit board by the interference of the fish-eye pins 11 and the upper lid pins 12 in the cage length direction and the interference of the lower lid pins 42 in the cage width direction.

The top of upper cover 1 has seted up heat dissipation window 14, and radiator 2 installs at heat dissipation window 14. The heat sink 2 is composed of a substrate 21, a heat sink 22 on top of the substrate 21, and a contact block 23 on the bottom of the substrate 21. The substrate 21 covers the top of the heat dissipation window 14 and seals the heat dissipation window 14 to avoid dust entering, the heat dissipation fins 22 are arranged at the top of the substrate 21 to form a plurality of heat dissipation channels, the contact blocks 23 are embedded into the heat dissipation window 14 and are contacted with the optical module in the cage, so that the heat conduction efficiency of the optical module is improved, and the heat dissipation effect is improved. The radiator 2 is fixedly connected with the upper cover 1 through a buckle 3, the buckle 3 is composed of a pair of side plates 31 and two fasteners 32 between the pair of side plates, the pair of side plates 31 are attached to the outer sides of a pair of side surfaces of the upper cover 1, and are buckled in a mode of holes 6 and tearing bosses 7 to form fixation. A pair of fasteners 32 correspondingly engage a pair of mounting slots 24 in the top surface of the base plate 21. The fastener 32 is a concave connecting sheet, the concave bottom of the connecting sheet is a horizontal section matched with the mounting groove 24, and the concave fastener 32 can generate downward pressure on the radiator 2 so as to enable the radiator to be stably mounted on the upper cover 1.

A pair of first shell fragment 15 is installed on the rear end face of upper cover 1, the middle part of the both sides of upper cover 1 rear end face is installed respectively to the stiff end of a pair of first shell fragment 15, and the free end of shell fragment 15 is the acute angle between after bending and the rear end face, when the optical module inserts, goes out the extrusion towards the rear end face with the free end of first shell fragment 15, and the reverse extrusion force of shell fragment 15 can be with the corresponding tip relative fixation of optical module, and when extracting, first shell fragment 15 can pop out the optical module. The end part of the lower cover 4 corresponding to one end of the opening of the cage is provided with a second elastic sheet 43, the second elastic sheet 43 is formed by punching the end part of the lower cover 4, the second elastic sheet 43 is bent upwards by a certain angle, the end part of the second elastic sheet is provided with a guide surface, the insertion of the optical module is facilitated, when the optical module is inserted, the second elastic sheet 43 is extruded downwards, and after the insertion is completed, the second elastic sheet 43 resets and extrudes the optical module to fix the optical module relatively. A triangular lock hole 44 is arranged in the middle of the second elastic sheet 43, a lock hook or a lock column is arranged at the bottom of the corresponding end of the optical module, and the optical module is further fixed through the cooperation of the lock column and the lock hole 44, so that the optical module has the anti-vibration and anti-impact capabilities,

A connecting window 8 is arranged between the tail end of the lower cover 4 and the rear end face of the upper cover 1, and an electric connector on the printed circuit board is connected with the connecting end of the optical module through the connecting window 8 to transmit signals.

The outer spring plates 5 are welded and mounted on the four outer side surfaces of the opening end of the cage respectively, the fixed edges of the outer spring plates 5 are attached to the four edges of the opening end of the cage, the outer spring plates 5 are arch-shaped complete spring plates, and the free ends of the outer spring plates are attached to the four side surfaces of the cage freely or certain gaps are reserved. When installing the cage at the installation panel or the installation square hole of server, extrude and take place elastic deformation through four shell fragments 5 and four inner walls of installation square hole to fix the cage tip, when plug or take place vibration impact, the cage homoenergetic keeps in the mounted position steadily.

Claims

1. The utility model provides an optical module cage, includes upper cover and lower cover, and the lower cover is installed in the box body that the upper cover bottom formed one end open-ended, and optical module inserts in the box body from box body open end, and the top of upper cover is equipped with the heat dissipation window, and the heat dissipation window department installs the radiator, the radiator is fixed in the upper cover by the fastener, the bottom of upper cover side is equipped with a plurality of fisheye feet, fisheye foot and the cooperation of printed circuit board's plate hole, characterized in that, the upper cover is equipped with first shell fragment with the corresponding one end of box body open end, and first shell fragment is located the box body, and first shell fragment stiff end is connected in the medial surface of upper cover, and when optical module inserts, the free end of first shell fragment provides the damping opposite with the direction of inserting; the middle part of the end of the lower cover, which is close to the opening end, is provided with a second elastic piece, the second elastic piece is bent upwards from the plane of the lower cover, the elastic piece is provided with a lock hole, and the lock hole is matched with a lock hook corresponding to the bottom of the optical module.

2. An optical module cage according to claim 1, wherein the four outer sides of the open end of the case are respectively welded with outer spring plates, and the fixed ends of the outer spring plates are welded with the edges of the four sides of the open end of the case.

3. An optical module cage according to claim 2, wherein the middle part of the outer spring is convex, and the free end of the outer spring is in contact with or leaves a gap with the corresponding outer side of the box body.

4. The optical module cage of claim 1, wherein the heat sink comprises a substrate, a plurality of rows of heat radiating fins are arranged on the top of the substrate, a contact block matched with a heat radiating window is arranged on the bottom of the substrate, and the contact block is embedded into the heat radiating window and is attached to the optical module in the box body.

5. The optical module cage of claim 4, wherein the top surface of the base plate is provided with mounting slots for mating with the fasteners.

6. The optical module cage of claim 1, wherein the buckle comprises a pair of side plates and a buckle between the pair of side plates, the pair of side plates being correspondingly connected to the side surfaces of the upper cover, the buckle being correspondingly engaged with the mounting groove of the top surface of the base plate.

7. The optical module cage of claim 6, wherein the fastener is a concave connecting piece, a middle section of the connecting piece is a horizontal section, and the middle section of the connecting piece is in extrusion fit with the mounting groove.

8. The optical module cage according to claim 1, wherein the bottoms of the two side surfaces of the upper cover are provided with upper cover pins, the upper cover pins are positioned on two sides of the fish-eye pins, the bottom ends of the upper cover pins are provided with eccentric interference points, and the eccentric interference points face to one side of the upper cover pins away from the corresponding fish-fork pins.

9. An optical module cage according to claim 1, wherein the lower cover is provided with lower cover pins on both sides of the bottom surface thereof, respectively, the lower cover pins being bent toward the outer sides in the width direction of the lower cover.

10. The optical module cage of claim 1, wherein the upper cover and the lower cover, and the buckle and the upper cover are connected by tearing bumps and holes.