Shell structure of QSFP28 optical module

Abstract

The utility model relates to a QSFP28 optical module shell structure, which comprises a base, a surface cover, a pull ring, a PCB (Printed Circuit Board), a spring, a screw and a shielding sheet, and an emitting laser and a receiving laser are arranged at the other end of a golden finger of the PCB; the pull ring is mounted between the base and the surface cover; the PCB is mounted in the base; the spring is installed in a spring groove formed by the pull ring and the two sides of the base. The pull ring is matched with the spring for use; the emitting laser and the receiving laser are connected with the base clamping groove; shielding sheets are sleeved in two heads of the emitting laser and the receiving laser and then are embedded in a long-strip deep groove in front of a clamping groove of the base, and electromagnetic radiation generated by an inner cavity of the shell is sealed in the inner cavity of the shell through the shielding sheets; the base is provided with a dustproof plug matched with the emitting laser and the receiving laser for use, and the emitting laser and the receiving laser are protected through the dustproof plug, so that the dustproof effect can be achieved when the laser does not need to be used.

Description

Technical Field

[0001] The utility model relates to optical communication technology and optical communication use equipment, and specifically to a QSFP28 optical module housing structure. Background Art

[0002] The steady development of the global telecommunications industry and the steady growth of broadband users have laid a solid foundation for the development of the optical communications industry. With the continuous increase in global bandwidth demand and the expansion of the application areas of data centers and security monitoring optical communications industries, fiber-optic broadband access has become the mainstream communication mode. Driven by the popularity of terminals such as smartphones and applications such as video and cloud computing, telecom operators continue to invest in the construction and upgrading of mobile broadband networks and fiber-optic broadband networks, and the scale of investment in optical communication equipment has also further expanded.

[0003] The rapid development of the optical communication industry has also driven the replacement of optical modules. In the current increasingly competitive market environment for optical communications, communication equipment has an increasing demand for reducing equipment size and increasing interface density. In order to meet this demand, optical modules are also developing in the direction of highly integrated small packages. For example, XFP, QSFP, QSFP+, CFP / CFP2 / CFP4, QSFP28, etc. are all small-sized pluggable high-density interface optical modules. Among them, QSFP28 is suitable for 4×25GE access ports, providing four high-bandwidth interconnection channels, and each channel can achieve a maximum transmission rate of 40Gbps.

[0004] The use of QSFP28 optical modules can be upgraded directly from 25G to 100G without going through 40G, which greatly simplifies the data center's cabling system, reduces the cost and cable density of the cabling system, and provides a more cost-effective solution for enterprise upgrades and Ethernet connections.

[0005] Therefore, it is necessary to provide a QSFP28 optical module housing structure method to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a QSFP28 optical module housing structure.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0008] A QSFP28 optical module housing structure includes a base, a cover, a pull ring, a PCB board, a spring, a screw, and a shielding sheet. The other end of the PCB board gold finger is provided with a transmitting laser and a receiving laser;

[0009] The pull ring is installed between the base and the cover;

[0010] The PCB board is installed in the base;

[0011] The spring is installed in the spring groove formed on both sides of the pull ring and the base;

[0012] The pull ring is used in conjunction with the spring;

[0013] The transmitting laser and the receiving laser are both connected to the base card slot;

[0014] The shielding sheet is inserted into the two heads of the transmitting laser and the receiving laser and then inserted into the long deep groove in front of the base card slot, and the electromagnetic radiation generated by the inner cavity of the shell is sealed in the inner cavity of the shell through the shielding sheet;

[0015] The base is provided with a dust plug used in conjunction with the transmitting laser and the receiving laser. The transmitting laser and the receiving laser are protected by the dust plug so as to be dustproof when not in use.

[0016] Furthermore, the base and the cover are detachably connected; the base and the cover are closed by using a male and female stop structure.

[0017] Furthermore, a limit card structure is designed in the spring groove formed on both sides of the pull ring and the base, which makes it easy to install the spring; the pull ring is installed in the spring groove formed with the base, and the limit card structure is provided on the pull ring, so the pull ring is not easy to fall off; limit card structures are added to the front and rear of the spring installation groove, so the spring is not easy to fall off.

[0018] Furthermore, the pull ring is installed on the base and used in conjunction with the spring, which can effectively limit the pull ring and the spring.

[0019] Furthermore, the assembly between the base and the upper cover on both sides of the shell adopts a male and female stop structure to achieve closure, which makes the base and the upper cover easy to assemble and the EMI shielding effect on both sides is better.

[0020] Furthermore, the optical port transmitting laser and the receiving laser are installed in the optical port slot and the long slot of the base together with a double-hole shielding plate, and the optical port EMI shielding effect is better; the back of the optical fiber end of the base is designed with heat dissipation fins to increase the heat dissipation area of ​​the shell.

[0021] Furthermore, the optical port of the base is designed with lettering T and R for use with a transmitting laser and a receiving laser.

[0022] Furthermore, at the rubber-wrapped pull ring between the base and the surface cover, there is a large gap between the optical port at the optical fiber end and the optical fiber plug-in and pull-out, which makes optical fiber plug-in and pull-out more convenient.

[0023] Furthermore, the tail of the pull ring rubber package is designed with long bosses of different lengths and a large arc, which is convenient for constructors to pull the optical module.

[0024] Compared with the prior art, the utility model greatly simplifies the wiring system of the data center, reduces the cost and cable density of the wiring system, and provides a more cost-effective solution for enterprise upgrades and Ethernet connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded view of the utility model;

[0026] Figure 2 It is an axial schematic diagram of the utility model in one direction;

[0027] Figure 3 It is an axial schematic diagram of the utility model in another direction. DETAILED DESCRIPTION

[0028] Example:

[0029] See also Figure 1-3 , this embodiment shows a QSFP28 optical module housing structure, including a base 1, a cover 2, a pull ring 4, a PCB board 6, a spring 5, a screw 8, and a shielding sheet 7;

[0030] The PCB board 6 is correspondingly provided with a transmitting laser 9 and a receiving laser 10;

[0031] The pull ring 4 is installed between the base 1 and the cover 2, and the base 1 and the cover 2 are detachably connected;

[0032] The PCB board 6 is installed in the base 1, and the spring 5 is installed in the spring groove formed by the pull ring 4 and the two sides of the base 1, and the pull ring 4 and the spring 5 are used in conjunction with each other;

[0033] The transmitting laser 9 and the receiving laser 10 are both connected to the base 1 slot, and the shielding sheet 7 is inserted into the two heads of the transmitting laser 9 and the receiving laser 10 and then inserted into the long deep groove 14 in front of the laser slot 13 of the base 1, so that the electromagnetic radiation generated by the inner cavity of the shell is enclosed in the inner cavity of the shell through the shielding sheet 7;

[0034] The base 1 and the pull ring 4 form a pulling mechanism through the spring 5 and are limited by the surface cover 2. When the pull ring 4 is pulled, the side unlocking structure of the pull ring 4 unlocks the optical module. The base 1 is provided with a dust plug 3 used in conjunction with the transmitting laser 9 and the receiving laser 10. The optical port 20 formed by the transmitting laser 9 and the receiving laser 10 is protected by the dust plug 3 to prevent dust when it is not needed.

[0035] Both sides of the base 1 are designed with a left limit card 11 and a right limit card 12 to cooperate with the pull ring 4 to limit the assembled spring 5 and clamp the first and tail compression ends of the spring 5 to ensure that the pull ring 4 and the spring 5 will not fall off the base 1.

[0036] The back of the optical fiber end of the base 1 is designed with heat dissipation fins 17 to enhance heat dissipation when the PCB board 6 and the transmitting laser 9 work together;

[0037] The optical port end of the base 1 is designed with a slot 13 connected to the laser and a slot 14 connected to the shielding sheet to ensure that the optical port EMI radiation is sealed;

[0038] The male stoppers 18 are designed on both sides of the base 1 and the female stoppers 19 are designed on both sides of the cover 2 to close both sides of the inner cavity and seal the EMI in the inner cavity of the module;

[0039] The upper inclined surface of the optical port of the base 1 is designed with letterings T and R21 for use with the transmitting laser 9 and the receiving laser 10.

[0040] The face cover is designed with a countersunk screw 8, and the base 1 is designed with a threaded groove used in conjunction with the countersunk screw 8. The face cover 2 is threadedly connected to the base 1. Through the use of the threaded groove and the countersunk screw 8, the face cover 2 and the base 1 can be detachably connected.

[0041] The pull ring 4 is installed into the spring groove formed on both sides of the base 1 and is used in conjunction with the spring 5. The left limit card 11 and the right limit card 12 on both sides of the base make the front and rear compression ends of the spring 5 limited and stuck in the spring groove. The protrusions on both sides of the upper cover press the spring, which will limit the spring 5 above.

[0042] The pull ring 4 is installed between the base 1 and the cover 2, and the optical fiber can be freely plugged in and out at the optical port 20 at the optical fiber end near the base 1;

[0043] The rubber-wrapped tail of the pull ring 4 is designed with long protrusions 16 of different lengths. The module is inserted into the cage and unlocked. Pulling on the long protrusions facilitates the normal unlocking of the module.

[0044] Pull ring 4. The pull ring is rubber-wrapped at the tail, with a large arc in the middle. The module is inserted into the squirrel cage to unlock, which makes it convenient for the constructor to pull the optical module with one finger to achieve normal unlocking.

[0045] Through the QSFP28 optical module shell structure, optoelectronic devices, functional circuits and optical connectors are firmly fixed in the cavity of the optical module, and used in combination with optical fiber communication equipment. Optical signals of optical fiber communication equipment are converted into electrical signals through optoelectronic devices, and the electrical signals are transmitted to the functional circuit board, and then the functional circuit board receives the electrical signals and communicates with the circuit board in the host device, or transmits the electrical signals of the circuit board in the host device to the functional circuit board in the optical module, and then the optoelectronic devices convert the electrical signals into optical signals and transmit them to the optical fiber communication equipment to communicate with other remote devices; through the unlocking component in the optical module shell structure, the optical module is firmly locked in the host device, and the unlocking component is used to smoothly unlock and exit the optical module from the host device.

[0046] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A QSFP28 optical module housing structure, characterized in that: It includes a base, a cover, a pull ring, a PCB board, a spring, a screw, and a shielding sheet. The other end of the PCB board gold finger is provided with a transmitting laser and a receiving laser; The pull ring is installed between the base and the cover; The PCB board is installed in the base; The spring is installed in the spring groove formed on both sides of the pull ring and the base; The pull ring is used in conjunction with the spring; The transmitting laser and the receiving laser are both connected to the base card slot; The shielding sheet is inserted into the two heads of the transmitting laser and the receiving laser and then inserted into the long deep groove in front of the base card slot, and the electromagnetic radiation generated by the inner cavity of the shell is sealed in the inner cavity of the shell through the shielding sheet; The base is provided with a dust plug used in conjunction with the transmitting laser and the receiving laser. The transmitting laser and the receiving laser are protected by the dust plug so as to be dustproof when not in use.

2. A QSFP28 optical module housing structure according to claim 1, characterized in that: The base and the cover are detachably connected; the base and the cover are closed by adopting a male and female stop structure.

3. A QSFP28 optical module housing structure according to claim 2, characterized in that: A limit card structure is designed in the spring groove formed on both sides of the pull ring and the base, which makes the spring easy to install; the pull ring is installed in the spring groove formed with the base, and the limit card structure is provided on the pull ring, so the pull ring is not easy to fall off; limit card structures are added to the head and tail of the installed spring in front and behind the spring groove, so the spring is not easy to fall off.

4. A QSFP28 optical module housing structure according to claim 3, characterized in that: The pull ring is installed on the base and used in conjunction with the spring, which can effectively limit the pull ring and the spring.

5. A QSFP28 optical module housing structure according to claim 4, characterized in that: The base and the upper cover on both sides of the shell are assembled with a male and female stop structure to achieve closure, which makes the base and the upper cover easy to assemble and provides better EMI shielding effects on both sides.

6. A QSFP28 optical module housing structure according to claim 5, characterized in that: The optical port transmitting laser and receiving laser are installed in the optical port slot and the long slot of the base together with a double-hole shielding sheet, and the optical port EMI shielding effect is better; the back of the optical fiber end of the base is designed with heat dissipation fins to increase the heat dissipation area of ​​the shell.

7. A QSFP28 optical module housing structure according to claim 6, characterized in that: The optical port of the base is designed with the lettering T and R for use with the transmitting laser and the receiving laser.

8. A QSFP28 optical module housing structure according to claim 7, characterized in that: There is a rubber-wrapped pull ring between the base and the cover, and there is a gap between the optical port of the optical fiber end and the optical fiber plug-in and pull-out, which is more convenient for optical fiber plug-in and pull-out.

9. A QSFP28 optical module housing structure according to claim 8, characterized in that: The tail of the pull ring rubber package is designed with long bosses of varying lengths and a large arc, which makes it easier for constructors to pull the optical module.

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