OSFP-XD optical module and installation method thereof

Abstract

The invention discloses an OSFP-XD optical module and an installation method of the OSFP-XD optical module. The OSFP-XD optical module comprises a shell base and a heat dissipation piece. A first mounting groove is formed in the upper portion of the shell base, the heat dissipation piece is arranged in the first mounting groove, and a plurality of air channels in the axial direction of the shell base are formed in the heat dissipation piece; the shell seat is provided with at least one air flow groove, and the air flow groove is opposite to the air inlets of the one or more air channels, so that external cold air is sucked into the air channels through the air flow groove, and heat dissipation is carried out on the interior of the optical module. According to the OSFP-XD optical module, at least one air flow groove is formed in the shell base, the air flow grooves are opposite to the air inlets of the one or more air channels in the heat dissipation piece, and the air inlet damping in the air channels of the heat dissipation piece is reduced through the arrangement of the air flow grooves, so that heat in the optical module can be smoothly discharged from the optical module.

Description

Technical Field

[0001] The present invention relates to the field of optical communication modules, and in particular to an OSFP-XD optical module and an installation method thereof. Background Art

[0002] Octal Small Form factor eXtra DensePluggable module (OSFP-XD) is a new form of optoelectronic module packaging. It supports the upgrade of global communication network architecture to 1.6T and provides an ideal solution for the construction of next-generation data centers. This module has the characteristics of high density and miniaturization, which can effectively improve the integration and performance of optical modules. The two main means of increasing the rate of optical modules are to increase the number of channels or to increase the rate of a single channel. However, these means also bring some challenges. With the increase in the number of channels and the increase in rate, the density of optoelectronic components inside the optical module will increase, and the corresponding component power consumption will also increase. These factors will cause an increase in heat generation inside the optical module. If this part of the heat is not discharged in time, it will directly affect the normal operation of the optical module. In order to ensure efficient heat dissipation of the optical module, effective heat dissipation measures need to be taken.

[0003] In order to dissipate heat from the optical module, it is usually necessary to set a heat sink in the optical module, and set an air duct in the heat sink, and transfer the heat to the outside of the optical module through the air duct in the heat sink. When the heat sink is set in the optical module, the heat sink is usually set on the optical module shell and is close to the shell, so that the heat in the optical module is extracted from the optical module by heat exchange, thereby reducing the temperature of the optical module. In the existing OSFP-XD optical module, the number of channels is usually increased by stacking up and down to improve the density of the optical module. Since the adapter is stacked up and down, one end of the shell (i.e., the end with the adapter) is higher than the other end. When the heat sink is set on the shell, since one end of the shell is higher than the other end, the air inlet of the heat sink will be blocked by one end of the shell, forming a large damping, and it is difficult to smoothly transfer the heat in the optical module to the outside of the optical module through the air duct set by the heat sink. Therefore, improvements are needed to smoothly transfer heat and improve the working performance, stability and service life of the optical module.

[0004] In view of this, how to overcome the defects of the prior art and solve the above-mentioned technical problems is a difficult problem to be solved in this technical field. Summary of the invention

[0005] The present invention provides an optimization scheme for an OSFP-XD optical module, aiming to solve the problem in the prior art that due to the upper and lower stacking arrangement of the adapter, one end of the shell seat is higher than the other end, and when the heat sink is set, the air inlet of the heat sink is blocked by one end of the shell seat, forming a large damping, and it is difficult to smoothly export the heat in the optical module to the outside of the optical module through the air duct set by the heat sink.

[0006] The present invention is achieved in that:

[0007] In a first aspect, the present invention provides an OSFP-XD optical module, comprising a housing 1 and a heat sink 2;

[0008] A first mounting groove 11 is provided above the housing seat 1, the heat sink 2 is provided in the first mounting groove 11, and a plurality of air ducts 21 along the axial direction of the housing seat 1 are provided on the heat sink 2;

[0009] At least one air flow groove 15 is provided on the housing base 1, and the air flow groove 15 is arranged opposite to the air inlet of one or more air ducts 21, so that external cold air can be drawn into the air duct 21 through the air flow groove 15 to dissipate heat inside the optical module.

[0010] Preferably, the OSFP-XD optical module further includes a cage 3;

[0011] A grid through hole 31 is provided on one end of the cage 3, and the cage 3 is sleeved on the housing base 1. The air outlet of the air duct 21 is connected to the grid through hole 31, so as to dissipate heat for the optical module through the air flow groove 15, the air duct 21 and the grid through hole 31.

[0012] Preferably, a second mounting groove 32 is provided on the cage 3 , a heat sink 321 is provided in the second mounting groove 32 , and the bottom surface of the heat sink 321 extends toward the inside of the cage 3 by a first preset thickness so that the heat sink 321 fits on the heat sink 2 .

[0013] Preferably, a glue overflow groove 111 is provided on the bottom surface of the first installation groove 11 , and the heat sink 2 is mounted on the glue overflow groove 111 .

[0014] Preferably, the optical module further comprises a pull ring 4;

[0015] The pull ring 4 includes a pair of sliding plates 41, and a first limiting protrusion 411 is provided on the inner wall of the sliding plate 41, and the first limiting protrusion 411 extends toward the inner side of the sliding plate 41;

[0016] The housing base 1 includes a first housing 13, the first housing 13 includes two side plates 131, a long groove 1311 is provided on the outer wall of the side plate 131, and a sliding groove 13111 is provided at one end of the long groove 1311 along the axial direction of the first housing 13;

[0017] The sliding plate 41 is disposed in the long groove 1311 , so that the first limiting protrusion 411 can be movably disposed in the sliding groove 13111 , so as to realize the assembly of the pull ring 4 and the first shell 13 .

[0018] Preferably, a second limiting protrusion 412 is provided at the tail of the sliding plate 41 in a vertically upward direction;

[0019] The shell base 1 also includes a second shell 14, which is arranged on the first shell 13; a first limiting groove 141 is arranged on the side plate of the second shell 14, and the second limiting protrusion 412 is arranged in the first limiting groove 141, so as to facilitate the second shell 14 to be set on the first shell 13 through the sliding plate 41.

[0020] Preferably, the optical module further comprises an optoelectronic component 5, the optoelectronic component 5 is arranged in the first housing 13, and the optoelectronic component 5 comprises at least two groups of optical adapters 51; wherein the two groups of optical adapters 51 are arranged in two layers, one above the other;

[0021] The head of the first shell 13 is provided with a cavity 132 , a support member 1321 is provided in the cavity 132 , at least two groups of bracket cavities 13211 are provided on the support member 1321 , and the optical adapter 51 is disposed in the bracket cavities 13211 .

[0022] Preferably, the tail of the sliding plate 41 is provided with an unlocking protrusion 413 along the axial direction of the sliding plate 41, and the other end of the long groove 1311 is provided with an arc groove 13112, and the unlocking protrusion 413 is arranged in the arc groove 13112;

[0023] Metal springs are respectively arranged on the inner walls of both sides of the cage 3, one end of the metal spring is connected to the inner wall of the cage 3, and the metal spring is inclined at a preset angle to the inner wall of the cage 3;

[0024] The cage 3 is sleeved on the outer side of the housing 1 so as to lock and unlock the optical module through the metal spring and the unlocking protrusion 413 .

[0025] In a second aspect, the present invention further provides an installation method of an OSFP-XD optical module, which is applicable to the OSFP-XD optical module of the first aspect, and the installation method comprises:

[0026] Install the heat sink 2 into the first installation groove 11 of the housing base 1;

[0027] The air inlet of one or more air ducts 21 in the heat sink 2 is aligned with the air flow slot 15 , so as to dissipate heat for the optical module through the air duct 21 and the air flow slot 15 .

[0028] Preferably, the OSFP-XD optical module further includes a cage 3, on which a heat sink 321 is provided. The installation method specifically includes:

[0029] Install the heat sink 2 into the first installation slot 11, and lift the heat sink 321 on the cage 3;

[0030] The cage 3 is aligned with the housing base 1 to insert the housing base 1 into the cage 3 , and the heat dissipation frame 321 is pressed against the heat dissipation element 2 to install the cage 3 and the housing base 1 together.

[0031] Compared with the prior art, the above technical solution adopted by the present invention has the following beneficial effects:

[0032] The present invention arranges at least one air flow groove 15 on the shell base 1 of the OSFP-XD optical module, and arranges the air flow groove 15 relative to the air inlet of one or more air ducts 21 on the heat sink 2. The air flow groove 15 is arranged to reduce the air inlet damping in the air duct of the heat sink 2, so that the heat in the optical module can be smoothly discharged from the optical module, thereby avoiding the problem of difficulty in heat dissipation in the optical module due to the upper and lower stacking of the OSFP-XD optical module. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the overall structure of an OSFP-XD optical module provided by an embodiment of the present invention;

[0035] Figure 2 A structural parts diagram of the connection between a heat sink and a housing seat of an OSFP-XD optical module provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of the structure of the connection between the cage and the housing seat in an OSFP-XD optical module provided by an embodiment of the present invention;

[0037] Figure 4A schematic diagram of a cage side view structure of an OSFP-XD optical module provided in an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of a cage structure of an OSFP-XD optical module provided in an embodiment of the present invention;

[0039] Figure 6 A schematic diagram of the position structure of a first mounting slot in an OSFP-XD optical module provided by an embodiment of the present invention;

[0040] Figure 7 A cross-sectional view of a fin in an OSFP-XD optical module provided by an embodiment of the present invention;

[0041] Figure 8 A schematic diagram of the fin structure in an OSFP-XD optical module provided by an embodiment of the present invention;

[0042] Fig. 9 A schematic diagram of the structure of a glue overflow groove in an OSFP-XD optical module provided by an embodiment of the present invention;

[0043] Fig.10 A schematic diagram of a pull ring structure in an OSFP-XD optical module provided by an embodiment of the present invention;

[0044] Fig.11 A schematic diagram of an exploded structure of an OSFP-XD optical module provided in an embodiment of the present invention;

[0045] Fig.12 A schematic diagram of the second housing structure in an OSFP-XD optical module provided by an embodiment of the present invention;

[0046] Fig.13 A schematic diagram of the structure of an optoelectronic component in an OSFP-XD optical module provided by an embodiment of the present invention;

[0047] Fig.14 A schematic diagram of a double-layer stacked structure of adapters in an OSFP-XD optical module provided by an embodiment of the present invention;

[0048] Fig.15 A schematic diagram of the structure of an inner support component of an OSFP-XD optical module provided by an embodiment of the present invention;

[0049] Fig.16 A schematic diagram of the position structure of a rib-shaped protrusion provided at the bottom of the first shell of an OSFP-XD optical module provided by an embodiment of the present invention;

[0050] Fig.17 A flow chart of a method for installing an OSFP-XD optical module provided by an embodiment of the present invention;

[0051] Fig.18 A flow chart of an installation method for an OSFP-XD optical module provided by an embodiment of the present invention when a fin is provided therein;

[0052] Fig.19 A schematic diagram of the stacked structure of a first optical transceiver component and a second optical transceiver component of an OSFP-XD optical module provided by an embodiment of the present invention;

[0053] Fig. 20 A schematic structural diagram of a first optical transceiver assembly and a second optical transceiver assembly of an OSFP-XD optical module provided by an embodiment of the present invention being stacked in a housing;

[0054] Fig.21 A schematic diagram of a support frame structure of an OSFP-XD optical module provided by an embodiment of the present invention;

[0055] Fig. 22 A schematic diagram of the structure of a limit card of an OSFP-XD optical module provided by an embodiment of the present invention;

[0056] Wherein, the accompanying drawings are marked as follows:

[0057] 1-shell base; 11-first mounting groove; 111-overflow glue groove; 12-fin; 121-protrusion; 122-holding notch; 13-first shell; 131-side plate; 1311-long groove; 13111-slide groove; 13112-arc groove; 132-cavity; 1321-support member; 13211-inner cavity of bracket; 14-second shell; 141-first limiting groove; 15-airflow groove; 2-heat sink; 21-air duct; 3-cage; 31-grid Through hole; 32-second mounting slot; 321-heat sink; 4-pull ring; 41-sliding plate; 411-first limiting protrusion; 412-second limiting protrusion; 413-unlocking protrusion; 5-photoelectric component; 51-optical adapter; 6-incision; 7-limiting card; 71-fixing part; 72-claw part; 721-pressing plate; 722-stop plate; 8-first optical transceiver component; 81-first optical fiber; 9-second optical transceiver component; 91-second optical fiber; 10-buckle. DETAILED DESCRIPTION

[0058] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Embodiment 1:

[0061] The embodiment of the present invention provides an OSFP-XD optical module, such as Figure 1-Figure 2 As shown, it includes a housing base 1 and a heat sink 2.

[0062] A first mounting groove 11 is disposed above the housing base 1 , the heat sink 2 is disposed in the first mounting groove 11 , and a plurality of air ducts 21 along the axial direction of the housing base 1 are disposed on the heat sink 2 .

[0063] At least one air flow groove 15 is provided on the housing base 1, and the air flow groove 15 is arranged opposite to the air inlet of one or more air ducts 21, so that external cold air can be drawn into the air duct 21 through the air flow groove 15 to dissipate heat inside the optical module.

[0064] like Figure 1-Figure 2 As shown, the embodiment of the present invention includes a housing 1 and a heat sink 2, the housing 1 is provided with a first mounting groove 11, the heat sink 2 is provided in the first mounting groove 11, and the heat sink 2 is used to dissipate heat from the optical module. In a specific application scenario, the OSFP-XD optical module of the embodiment of the present invention adopts an upper and lower stacking arrangement. When the air duct 21 in the heat sink 2 is used for heat dissipation, the stacking design will block the air inlet of the heat sink 2, thereby making the air inlet flow of the heat sink 2 not smooth. The embodiment of the present invention arranges at least one airflow groove 15 on the housing 1 of the OSFP-XD optical module, and arranges the airflow groove 15 relative to the air inlet of one or more air ducts 21 on the heat sink 2, so that the airflow groove 15 is connected with the air duct 21 in the heat sink 2, thereby forming a channel for dissipating heat from the OSFP-XD optical module of the embodiment of the present invention, thereby ensuring that the OSFP-XD optical module operates under normal operating temperature conditions.

[0065] The housing base 1 of the embodiment of the present invention is provided with a first mounting groove 11 above, and the heat sink 2 is provided in the first mounting groove 11. Specifically, baffles are provided on both sides above the housing base 1 (see Figure 2As shown, not marked in the figure), to form a first installation groove 11 for installing the heat sink 2, the heat sink 2 is provided with a plurality of air ducts 21 along the axial direction of the shell seat 1, the embodiment of the present invention can be but not limited to aluminum to make the heat sink 2, the heat sink 2 is provided with a plurality of hollow open cavities to form the air ducts 21 in the heat sink 2. In the process of manufacturing, the heat sink 2 can be but not limited to die-casting, which has low precision requirements, low cost and good thermal conductivity; in addition, in the process of actual application, the heat sink 2 needs to be connected with the heat sink 321 (such as Figure 3 The heat sink 2 is made of aluminum. The metal has good ductility and can ensure the roughness and flatness of the surface of the heat sink 2, so that the heat sink 2 can easily contact and conduct heat with the module cage and the system radiator.

[0066] like Figure 3-Figure 5 As shown, the OSFP-XD optical module in the embodiment of the present invention further includes a cage 3; a grid through hole 31 is provided on one end of the cage 3, the cage 3 is sleeved on the housing 1, and the air outlet of the air duct 21 is connected to the grid through hole 31, so as to facilitate heat dissipation of the optical module through the air flow groove 15, the air duct 21 and the grid through hole 31.

[0067] like Figure 3 As shown, the embodiment of the present invention also includes a cage 3, which is sleeved on the shell base 1 and mainly serves to protect the optical module. In order to further dissipate the heat of the optical module, a grid through hole 31 is provided on one end of the cage 3 of the embodiment of the present invention. Specifically, the grid through hole 31 is provided at the tail of the cage 3, and a communication state is formed with the air duct 21 on the heat sink 2 through the grid through hole 31, so as to dissipate the heat of the optical module. It is worth noting that the shape of the grid through hole 31 of the embodiment of the present invention can be set according to the specific situation. For example, the grid through hole 31 can be, but is not limited to, set to one or more of square, circular and strip shapes.

[0068] The OSFP-XD optical module of the embodiment of the present invention includes a housing 1, a heat sink 2 and a cage 3. An air duct 21 is provided on the heat sink 2, and the heat sink 2 provided with the air duct 21 is installed in the first installation groove 11 of the housing 1; a grid through hole 31 is provided at one end of the cage 3. When the cage 3 is sleeved on the housing 1, the air duct 21 is connected with the grid through hole 31 to form a channel for dissipating heat from the optical module.

[0069] In order to illustrate the complete solution of the embodiment of the present invention, the details of the embodiment of the present invention are described in detail below. During the installation of the heat sink 2, in order to fix the heat sink 2 in the first installation groove 11, as shown in FIG. Figure 6-Figure 7As shown, at least one fin 12 along the axial direction of the housing 1 is provided on the inner wall of one end of the first mounting groove 11, and a protrusion 121 is provided at one end of the fin 12, and the protrusion 121 is suspended on one end of the fin 12 so that the protrusion 121 and the bottom surface of the first mounting groove 11 form a clamping notch 122 (as shown in FIG. Figure 8 As shown in the figure), the protrusion 121 is arranged in the air duct 21 of the heat sink 2 to clamp and fix the heat sink 2 through the clamping notch 122.

[0070] like Figure 6-Figure 8 As shown, the first mounting groove 11 of the embodiment of the present invention is provided with a fin 12, and a protrusion 121 is provided at one end of the fin 12. The protrusion 121 is suspended on the fin 12, and the heat sink 2 is fixed in the first mounting groove 11 through the fin 12 by inserting the protrusion 121 into the air duct 21 of the heat sink 2. Specifically, the lower end of the fin 12 of the embodiment of the present invention is provided on the first mounting groove 11, and the fin 12 is arranged along the axial direction of the housing seat 1 as a whole; the protrusion 121 is provided near the upper side of one end of the fin 12, and the protrusion 121 is suspended so that the protrusion 121 and the bottom surface of the first mounting groove 11 form a clamping notch 122. When the heat sink 2 is installed in the first mounting groove 11, the port of the air duct 21 of the heat sink 2 is inserted into the protrusion 121 on the fin 12 to fix the heat sink 2 in the first mounting groove 11. It is worth noting that the heat sink 2 of the embodiment of the present invention is provided with a plurality of air ducts 21, and one fin 12 only needs to be clamped with one air duct 21; through the action of the fin 12, on the one hand, the heat sink 2 is fixedly clamped in the first mounting groove 11, and on the other hand, during the installation of the heat sink 2, the fin 12 can also be used to locate the installation position of the heat sink 2.

[0071] The optical module of the embodiment of the present invention is provided with a cage 3, in order to further dissipate heat for the optical module of the embodiment of the present invention. Figure 3 As shown, the cage 3 of the embodiment of the present invention is provided with a second mounting groove 32, a heat sink 321 is provided in the second mounting groove 32, and the bottom surface of the heat sink 321 extends toward the inside of the cage 3 by a first preset thickness so that the heat sink 321 fits on the heat sink 2.

[0072] like Figure 3-Figure 4As shown, the embodiment of the present invention sets a second mounting groove 32 on the cage 3, and sets a corresponding heat sink 321 in the second mounting groove 32. When the cage 3 is mounted on the housing 1, the heat sink 321 is placed on the heat sink 2. The heat sink 2 and the heat sink 321 work together to dissipate heat inside the optical module. In order to stably set the heat sink 321 on the cage 3, the bottom of the heat sink 321 of the embodiment of the present invention is convenient to be cut, and the edge of the bottom of the heat sink 321 is cut into a notch 6 (see Figure 4 As shown in the figure, when the heat sink 321 is installed in the second installation groove 32, the heat sink 321 is inserted into the second installation groove 32 through the cutout 6 at the bottom of the heat sink 321, and the heat sink 321 is held in the second installation groove 32 under the action of the gravity of the heat sink 321.

[0073] It is worth noting that, in order to fix the heat sink 321 in the second mounting groove 32, the bottom of the heat sink 321 of the embodiment of the present invention extends toward the inside of the cage 3 by a first preset thickness, and the first preset thickness of the embodiment of the present invention can be, but is not limited to, set to 0.01 mm; the direction in which the bottom of the heat sink 321 of the embodiment of the present invention extends toward the inside of the cage 3 is specifically expressed as: extending from the upper surface of the cage 3 to the inner cavity of the cage 3, and cutting the bottom of the heat sink 321. After cutting, the bottom of the heat sink 321 has a cut 6 (see Figure 4 As shown), the heat sink 321 is held in the second mounting groove 32. It is worth noting that the bottom of the heat sink 321 in the embodiment of the present invention extends a first preset thickness toward the inside of the cage 3, and the first preset thickness in the embodiment of the present invention can be but is not limited to 0.01 mm.

[0074] In a preferred application scenario, in order to prevent the heat sink 321 from falling off the cage 3, after the heat sink 321 is installed in the second installation slot 32, a buckle 10 is provided on the cage 3 (see Figure 4 As shown), the heat sink 321 is fixed on the cage 3. In addition, on the cage 3 provided with the buckle 10, the cage 3 usually has a certain elasticity. When the cage 3 and the housing 1 are plugged into each other, the heat sink 321 on the cage 3 is lifted up by the fin 12. The cage 3 has a certain elasticity, and the heat sink 321 is fixed in the second mounting groove 32 of the cage 3 by the buckle 10 provided on the cage 3. When the fin 12 lifts up the heat sink 321, the upper part of the cage 3 will be lifted up and deformed within the range of elastic deformation. When the heat sink 321 completely passes through the fin 12, the fin 12 does not contact the heat sink 321. At this time, the force applied by the fin 12 is lost. The heat sink 321 is firmly attached to the heat sink 2 through the buckle 10 and the elastic action of the cage 3.

[0075] In order to make the optical module of the embodiment of the present invention have a better heat dissipation effect, after the cage 3 of the embodiment of the present invention is installed on the shell seat 1 and is symmetrical with the shell seat 1, the heat sink 321 needs to be placed on the heat sink 2, and ensure that the heat sink 321 and the heat sink 2 are kept in close contact, so as to transfer the heat inside the optical module to the outside of the optical module as much as possible through heat transfer. Based on this, the size of the cage 3 of the embodiment of the present invention cannot be set too large. On the one hand, it is necessary to ensure that after the cage 3 is inserted into the shell seat 1, the heat sink 321 and the heat sink 2 can be well fitted and there is no gap between the heat sink 321 and the heat sink 2, so as to achieve excellent heat dissipation; on the other hand, since the bottom of the heat sink 321 is provided with a cutout 6, the bottom of the heat sink 321 will extend toward the inside of the cage 3. During the installation process, it is also necessary to ensure that the heat sink 321 can slide onto the heat sink 2. Based on this, the embodiment of the present invention usually sets the size of the cage 3 to be slightly larger than the size of the shell seat 1, so that the cage 3 can be smoothly inserted into the shell seat 1; due to the slightly larger size of the cage 3, during the process of inserting the cage 3 into the shell seat 1, it is inevitable that the bottom of the heat sink 321 will scratch the heat sink 2, causing force to act on the heat sink 2. During the process of multiple insertion and unlocking of the cage 3 and the shell seat 1, it is very easy to cause the heat sink 2 to fall off from the first mounting groove 11, thereby causing the problem of heat dissipation failure in the optical module.

[0076] In order to solve the above problem, the fin 12 of the embodiment of the present invention is higher than the heat sink 2 by a first preset height (see Figure 7 As shown, Figure 7 The height of the middle fin 12 is slightly higher than the height of the heat sink 2, and the visual difference is not too large). During the installation and disassembly of the cage 3, the heat sink 321 is lifted by the fin 12 to prevent the heat sink 321 from exerting force on the heat sink 2 and causing the heat sink 2 to loosen.

[0077] The embodiment of the present invention not only uses the fins 12 to position the heat sink 2 and fix the heat sink 2. The height of the fins 12 is also set to exceed the first preset height of the heat sink 2. During the installation of the cage 3, when the heat sink 321 on the cage 3 passes through the fins 12, the fins 12 lift the heat sink 321, so that the heat sink 321 is raised, and the heat sink 321 is as far away from the heat sink 2 as possible. Therefore, during the installation of the heat sink 321, the heat sink 2 will not be affected by the heat sink 321, and the heat sink 2 can be prevented from being loosened due to force. It is worth noting that the fins 12 of the embodiment of the present invention are higher than the first preset height of the heat sink 2. For example, it can be but not limited to being 0.1 mm higher than the heat sink, so as to avoid the problem of the heat sink 2 being loosened due to the force applied by the heat sink 321.

[0078] like Fig. 9As shown, in order to stably install the heat sink 2 in the first installation groove 11, an overflow glue groove 111 is provided on the bottom surface of the first installation groove 11 in an embodiment of the present invention, and the heat sink 2 is mounted on the overflow glue groove 111. In a specific application scenario, the embodiment of the present invention provides a grid-shaped overflow glue groove 111 in the first installation groove 11, and the overflow glue grooves 111 of each grid, for example, can be but not limited to drawing n×m (where n≥2, and m≥2) grids on the bottom surface of the first installation groove 11, and grooves are provided along the edge lines of each grid, thereby forming the overflow glue groove 111. The overflow glue groove 111 is actually formed by the grooves on the edges of each grid being interconnected. When the heat sink 2 needs to be installed in the first installation groove 1 1, fill the overflow glue groove 111 with solder paste or glue. When the heat sink 2 is assembled into the first mounting groove 11, the inner surface of the heat sink 2 squeezes the solder paste or glue so that the solder paste or glue flows along the overflow glue groove 111, and the gas in the overflow glue groove 111 is discharged. Then, the heat sink 2 is fixed in the first mounting groove 11 by welding or high-temperature curing, so as to reduce the problem of welding or high-temperature curing failure caused by the presence of air between the shell base 1 and the heat sink 2, thereby greatly improving the yield of the process.

[0079] It is worth noting that when solder paste is used to fill the space between the heat sink 2 of the embodiment of the present invention and the overflow glue groove 111 in the first mounting groove 11, the heat sink 2 is mounted in the overflow glue groove 111 coated with solder paste, and the solder paste is melted by high temperature so that the solder paste flows along the edge of the groove, so that the solder paste is evenly filled in the overflow glue groove 111. After the temperature is lowered, the heat sink 2 is fixed at the overflow glue groove 111 of the first mounting groove 11 by the solder paste; when watering is used to fill the space between the heat sink 2 of the embodiment of the present invention and the overflow glue groove 111 in the first mounting groove 11, the heat sink 2 is mounted in the overflow glue groove 111 coated with glue, and the fluidity of the glue makes the glue flow along the edge of the groove. After the glue is evenly filled in the overflow glue groove 111, the glue is cured by heating, and then the glue fixes the heat sink 2 at the overflow glue groove 111 of the first mounting groove 11.

[0080] like Figure 10-12 As shown, the optical module of the embodiment of the present invention also includes a pull ring 4; the pull ring 4 includes a pair of sliding plates 41, and a first limiting protrusion 411 is arranged on the inner wall of the sliding plate 41, and the first limiting protrusion 411 extends toward the inner side of the sliding plate 41; the shell base 1 includes a first shell 13, and the first shell 13 includes two side plates 131, and a long groove 1311 is arranged on the outer wall of the side plate 131, and a slide groove 13111 is arranged along the axial direction of the first shell 13 at one end of the long groove 1311; the sliding plate 41 is arranged in the long groove 1311, so that the first limiting protrusion 411 can be movably arranged in the slide groove 13111, so as to realize the assembly of the pull ring 4 and the first shell 13.

[0081] like Figure 10-12 As shown, the pull ring 4 of the embodiment of the present invention includes a pair of sliding plates 41, the two movable plates are symmetrically arranged, and a first limiting protrusion 411 is arranged on the inner wall of each movable plate; the first shell 13 includes two side plates 131, and a long groove 1311 is arranged on the outer wall of each side plate 131, and a sliding groove 13111 along the axial direction of the first shell 13 is arranged at one end of the long groove 1311. When the sliding plate 41 is arranged in the long groove 1311 of the side plate 131, by setting the first limiting protrusion 411 in the long groove 1311, the first limiting protrusion 411 can be movably arranged in the sliding groove 13111, thereby realizing the connection between the sliding plate 41 and the shell base 1. In actual application, in order to insert the first limiting protrusion 411 on the sliding plate 41 into the slide groove 13111 on the long groove 1311, the embodiment of the present invention can be but not limited to setting a corresponding notch at the lower end of the slide groove 13111, connecting the notch with the lower end of the slide groove 13111, and sliding the first limiting protrusion 411 into the slide groove 13111 along the notch, thereby assembling the sliding plate 41 into the long groove 1311 of the side plate 131 to realize the assembly of the pull ring 4 and the first shell 13.

[0082] like Figure 11-Figure 12 As shown, the tail of the sliding plate 41 of the embodiment of the present invention is provided with a second limiting protrusion 412 vertically upward; the housing base 1 also includes a second housing 14, and the second housing 14 is arranged on the first housing 13; the side plate 131 of the first housing 13 is provided with a first limiting groove 141, and the second limiting protrusion 412 is arranged in the first limiting groove 141, so as to facilitate the second housing 14 to be arranged on the first housing 13 through the sliding plate 41. It is worth noting that the air flow groove 15 and the first mounting groove 11 described in the above embodiment of the present invention are actually arranged on the second housing 14 (see Fig. 9 shown).

[0083] like Fig.11 As shown, the tail of the sliding plate 41 of the embodiment of the present invention is also provided with a second limiting protrusion 412 pointing vertically upwards, the shell base 1 also includes a second shell 14, the second shell 14 is arranged on the first shell 13, and the side plate of the second shell 14 is provided with a first limiting groove 141, the first limiting groove 141 matches the second limiting protrusion 412, that is, the first limiting groove 141 is also arranged vertically upwards, when the sliding plate 41 of the pull ring 4 is connected to the first shell 13, the second limiting protrusion 412 on the sliding plate 41 is inserted into the first limiting groove 141 to connect the pull ring 4, the first shell 13 and the second shell 14 together.

[0084] Further, such as Fig.11As shown, the tail of the sliding plate 41 of the embodiment of the present invention is provided with an unlocking protrusion 413 along the axial direction of the sliding plate 41, and the other end of the long groove 1311 is provided with an arc groove 13112, and the unlocking protrusion 413 is arranged in the arc groove 13112; metal springs are respectively provided on the inner walls on both sides of the cage 3, one end of the metal spring is connected to the inner wall of the cage 3, and the metal spring and the inner wall of the cage 3 are inclined at a preset angle; the cage 3 is sleeved on the outer side of the shell seat 1, so as to lock and unlock the optical module through the metal spring and the unlocking protrusion 413.

[0085] In order to achieve the reset and unlocking of the optical module of the embodiment of the present invention, the tail of the sliding plate 41 of the embodiment of the present invention is provided with an unlocking protrusion 413 along the axial direction of the sliding plate 41 (see Fig.11 As shown, Fig.11 The unlocking protrusion 413 is arched, and the other end of the long groove 1311 on the first shell 13 is provided with an arc groove 13112 matching the unlocking protrusion 413 (see Fig.11 As shown, Fig.11 When the sliding plate 41 is mounted on the long groove 1311 of the first housing 13, the unlocking protrusion 413 at the rear of the sliding plate 41 is pushed into the arc groove 13112 for fixing. The inner walls of the cage 3 on both sides are provided with metal springs (see Figure 1 As shown, Figure 1 (not marked in the figure), one end of the metal spring is connected to the inner wall of the cage 3, and the metal spring and the inner wall of the cage 3 are inclined at a preset angle.

[0086] After the unlocking protrusion 413 at the tail of the sliding plate 41 is pushed into the arc groove 13112 for fixation, the cage 3 is sleeved on the outside of the shell seat 1, and the cage 3 and the shell seat 1 are inserted into each other. During the insertion process, under the action of the side surface of the first shell 13, the metal spring piece is in a state of being close to the side surface of the first shell 13. When the metal spring piece reaches the unlocking protrusion 413, the metal spring piece bounces up and is then clamped on the unlocking protrusion 413, thereby locking the pull ring 4, the first shell 13 and the second shell 14 through the cage 3.

[0087] It is worth noting that, in order to lock the pull ring 4, the first shell 13 and the second shell 14 through the metal spring on the cage 3, the end of the pull ring 4 of the embodiment of the present invention is set to be concave inward, so that when the metal spring on the cage 3 passes the unlocking protrusion 413, the metal spring can bounce up and lock the metal spring on the unlocking protrusion 413. When unlocking is required, the sliding plate 41 is pulled so that the first limiting protrusion 411 on the sliding plate 41 moves along the sliding groove 13111, and then the unlocking protrusion 413 is pulled away from the arc groove 13112; at the same time, when the unlocking protrusion 413 of the pull ring 4 is pulled away from the arc groove 13112, the unlocking protrusion 413 is separated from the metal spring, and then the pull ring 4 is taken out from the bottom of the sliding groove 13111, thereby realizing the separation of the pull ring 4, the first shell 13 and the second shell 14.

[0088] It is worth noting that in order to facilitate the application of force to the pull ring 4, a handle is also provided on the sliding plate 41 of the embodiment of the present invention. A pair of sliding plates 41 on the pull ring 4 are respectively arranged on both sides of the handle. The handle can facilitate the user to apply force so as to reset and unlock the optical module of the embodiment of the present invention.

[0089] In order to realize the photoelectric conversion of the optical module of the embodiment of the present invention, Fig.13 As shown, the optical module of the embodiment of the present invention further includes an optoelectronic component 5, the optoelectronic component 5 is arranged in the first housing 13, and the optoelectronic component 5 includes at least two groups of optical adapters 51; wherein the two groups of optical adapters 51 are arranged in two layers, one above the other;

[0090] The head of the first shell 13 is provided with a cavity 132 , a support member 1321 is provided in the cavity 132 , at least two groups of bracket cavities 13211 are provided on the support member 1321 , and the optical adapter 51 is disposed in the bracket cavities 13211 .

[0091] In specific application scenarios, such as Figure 13-Figure 15As shown, the optoelectronic component 5 in the optical module of the embodiment of the present invention includes at least two groups of optical adapters 51, and the two groups of optical adapters 51 are arranged in two layers. In order to fix the optical adapters 51 arranged in two layers in the optical module, the head of the first shell 13 of the embodiment of the present invention is provided with a cavity 132, and a support member 1321 is provided in the cavity 132. At least two groups of upper and lower bracket cavities 13211 are provided on the support member 1321, so as to facilitate the optical adapter 51 to be arranged in the bracket cavity 13211. In a specific application scenario, the two sides of the positioning ring of the optical adapter are processed into a flat shape by cutting, and the two sides of the bracket cavity 13211 of the corresponding support member 1321 are arranged to match the flat shape on both sides of the positioning ring, so that when the positioning ring of the adapter is inserted into the bracket cavity 13211, the flat shape on the positioning ring and the two side walls of the bracket cavity 13211 form a limit, so as to prevent the optical adapter 51 from rotating during use or cleaning, thereby causing optical fiber twisting. Refer to Fig.14 As shown, since the optical transceiver assembly includes an optical transceiver end and an optical receiving end, each group of bracket cavities includes two cavity structures. It can be understood that Fig.14 The two cavity structures located in the upper layer are a group of bracket inner cavities, and the two cavity structures located in the lower layer are another group of bracket inner cavities. In addition, the optoelectronic component 5 in the optical module of the embodiment of the present invention is mainly used to realize photoelectric conversion. The optoelectronic component 5 in the embodiment of the present invention includes at least two optical transceiver components. The optical transceiver component includes an optical receiving component and an optical transmitting component, a PCB circuit board and a DSP chip. The optical transceiver component and the DSP chip are connected through the PCB circuit board to form an optoelectronic component 5 for photoelectric conversion. After the optical transceiver component and the DSP chip are mounted on the PCB circuit board, the PCB circuit board needs to be mounted in the first shell 13. In a specific application scenario, a heat sink is set in the first shell 13, and then the PCB circuit board with the optical transceiver component and the DSP chip mounted thereon is mounted in the first shell 13.

[0092] In addition, in order to further dissipate heat within the housing base 1, a plurality of rib-shaped protrusions are disposed on the lower surface of the first housing 13 of the embodiment of the present invention (see Fig.16 As shown, Fig.16 The adjacent rib-like protrusions are spaced apart accordingly, and the cage 3 is provided with grid holes (the shape of the grid holes can be, but is not limited to, circular, square or long strips). By sleeve-fitting the cage 3 on the housing 1, the inner wall of the cage 3 cooperates with the rib-like protrusions to form a heat dissipation duct at the bottom, thereby better dissipating the heat inside the optical module. It is worth noting that, refer to Fig.16As shown, the heat dissipation flow direction of the heat dissipation duct of the embodiment of the present invention is represented, and heat is dissipated through the duct 21 set in the heat sink 2 and the heat dissipation duct formed by the rib-like protrusions set on the lower surface of the cage 3 and the lower surface of the first shell 13, thereby transferring the heat in the optical module to the outside of the optical module.

[0093] In addition, since the optical module of the embodiment of the present invention adopts an upper and lower stacking arrangement, when the air duct 21 in the heat sink 2 is used for heat dissipation, the stacking design will block the air inlet of the heat sink 2, thereby making the air flow of the heat sink 2 not smooth. In order to ensure the smoothness of the air inlet at the air inlet of the heat sink 2, the embodiment of the present invention is provided with an air flow groove 15 on the second shell 14 opposite to the air inlet of the heat sink 2. By setting the air inlet of the heat sink 2 to be blocked as the air flow groove 15, the air can smoothly enter the air duct 21 of the heat sink 2, and the heat in the optical module can be smoothly discharged from the optical module, thereby achieving the purpose of cooling the optical module.

[0094] The OSFP-XD optical module of the embodiment of the present invention includes a housing 1, a heat sink 2 and a cage 3. An air duct 21 is provided on the heat sink 2, and the heat sink 2 provided with the air duct 21 is installed in the first installation groove 11 of the housing 1; a grid through hole 31 is provided at one end of the cage 3, and when the cage 3 is sleeved on the housing 1, the air duct 21 is communicated with the grid through hole 31 to form a channel for dissipating heat from the optical module; the embodiment of the present invention provides a plurality of rib-like protrusions at the bottom of the housing 1 (i.e., the first shell 13), and there are gaps between adjacent rib-like protrusions. When the cage 3 is sleeved on the housing 1, another group of heat dissipation air ducts are formed between the inner wall of the cage 3 and the rib-like protrusions, and then the heat generated inside the optical module is discharged through the formed heat dissipation air ducts, thereby improving the heat dissipation performance of the optical module. In addition, the bottom surface of the first mounting groove 11 of the embodiment of the present invention is provided with a glue overflow groove 111, which mainly plays the role of glue overflow and exhaust, so that when the first shell 13 is fixed to the heat sink 2, failures such as hollowing are avoided, and the yield of the process is greatly improved; by arranging at least one fin 12 in the first mounting groove 11, a protrusion 121 is provided at one end of the fin 12, and the protrusion 121 is suspended on one end of the fin 12, so that the protrusion 121 and the bottom surface of the first mounting groove 11 form a clamping notch 122, which can not only determine the installation position of the heat sink 2, but also protect the heat sink 2 from falling off. In addition, the height of the fin 12 exceeds the height of the heat sink 2. When the cage 3 is sleeved on the shell seat 1 and the cage 3 is inserted into the shell seat 1, the heat sink 2 can be prevented from being exerted by the heat sink 2 by the heat sink frame 321 on the cage 3, thereby causing the heat sink 2 to loosen due to force.

[0095] Embodiment 2:

[0096] Embodiment 2 of the present invention further provides an installation method of an OSFP-XD optical module, which is applicable to the installation of the OSFP-XD optical module described in Embodiment 1. Fig.17 As shown, the installation method comprises:

[0097] Step 201: Install the heat sink 2 into the first installation groove 11 of the housing 1. The housing 1 of the OSFP-XD optical module of the embodiment of the present invention is provided with at least one airflow groove 15. During the installation process, the airflow groove 15 needs to be aligned with the air inlet of the air duct 21 of the heat sink 2 (relatively arranged) so that the airflow groove 15 is connected with the air duct 21 in the heat sink 2 to form a channel for dissipating heat for the OSFP-XD optical module of the embodiment of the present invention, thereby ensuring that the OSFP-XD optical module operates under normal operating temperature conditions.

[0098] Step 202 : aligning the air inlet of one or more air ducts 21 in the heat sink 2 with the air flow slot 15 , so as to dissipate heat for the optical module through the air duct 21 and the air flow slot 15 .

[0099] The shell base 1 of the OSFP-XD optical module of the embodiment of the present invention is provided with a first mounting groove 11, and a glue overflow groove 111 is provided in the first mounting groove 11. The heat sink 2 is mounted in the glue overflow groove 111 of the first mounting groove 11. By setting solder paste or glue in the glue overflow groove 111, the heat sink 2 can be firmly installed in the first mounting groove 11. The installation of the heat sink 2 and the first mounting groove 11 has been described in detail above and will not be repeated here.

[0100] After installing the heat sink 2 into the first installation groove 11, the cage 3 is inserted into the shell base 1 so that the air duct 21 of the heat sink 2 is connected to the grille through hole on the cage 3, and a complete ventilation system is formed through the air duct 21 on the heat sink 2 and the grille through hole, so as to dissipate heat from the optical module. It is worth noting that in the actual application of the embodiment of the present invention, after the shell base 1, the cage 3, and the pull ring 4 are connected to form the optical module of the embodiment of the present invention, an external fan is usually set outside the system of the optical module, and the external fan is connected to the grille through hole 31 on the cage 3, and the wind in the optical module is extracted from the optical module through the external fan, so that the heat generated in the optical module is extracted from the optical module through the design of the air duct 21 in the optical module.

[0101] like Fig.18 As shown, the OSFP-XD optical module of the embodiment of the present invention further includes a cage, and a heat sink is provided on the cage. The installation method includes:

[0102] Step 301: insert the OSFP-XD optical module into the first mounting slot 11 of the housing 1, and the fins 12 of the OSFP-XD optical module lift the heat sink 321 on the cage 3, thereby protecting the end surface of the heat sink 2 from colliding with the end surface of the abutment portion of the heat sink 321 during the insertion process.

[0103] In combination with Example 1, a heat sink 321 is provided on the cage 3 of the embodiment of the present invention. In the process of plugging the cage 3 and the shell base 1, in order to prevent the heat sink 321 from exerting force on the heat sink 2 disposed in the first mounting groove 11, causing the heat sink 2 to loosen, thereby causing the heat sink 2 to lose the heat dissipation effect; the optical module of the embodiment of the present invention is provided with fins 12, and the height of the fins 12 is higher than that of the heat sink 2. In the process of plugging the shell base 1 and the cage 3, the heat sink 321 on the cage 3 is lifted up by the fins 12. In addition, a protrusion 121 is provided in the fin 12, and the protrusion 121 of the fin 12 is inserted into the air duct 21 of the heat sink 2. The heat sink 2 is fixed in the first mounting groove 11 by the protrusion 121 of the fin 12, which can not only determine the installation position of the heat sink 2, but also protect the heat sink 2 from falling off.

[0104] Step 302 : After the OSFP-XD optical module is inserted into the housing 1 , the fin 12 is separated from the contact with the abutment portion, and the corresponding abutment portion is tightly abutted against the surface of the heat sink 2 based on the elastic force of the housing 1 .

[0105] Among them, during the installation of the optical module of the embodiment of the present invention, the cage 3 needs to be sleeved on the shell seat 1, and the height of the fins 12 is higher than the heat sink 2. During the installation of the cage 3, the heat sink 321 on the cage 3 is lifted up by the fins 12 to avoid the heat sink 321 from contacting and applying force with the heat sink 2, thereby avoiding the heat sink 2 from falling off from the first installation groove 11 due to the force applied by the heat sink 321 to the heat sink 2 during the insertion of the cage 3 and the shell seat 1, which can effectively avoid the problem of heat dissipation disorder in the optical module caused by the falling of the heat sink 2; when the heat sink 321 as a whole passes over the fins 12, the heat sink 321 falls down under the action of gravity, so that the heat sink 321 is tightly attached to the heat sink 2, and then the heat sink 2 and the heat sink 321 jointly dissipate heat to the optical module.

[0106] In actual production, the heat sink 2 and the housing 1 can be firstly welded together by a reflow soldering process. When the assembled module is inserted into the cage as a whole, the fins 12 of the module lift up the heat sink 321.

[0107] Embodiment 3:

[0108] Embodiment 3 of the present invention further provides a limit card 7 based on embodiment 1. The limit card 7 is a small structure inside the optical module, so as to constrain the optical fiber in the optical module of the embodiment of the present invention within the range of the limit card. Figure 19-22 As shown, the optical module of the embodiment of the present invention includes a first optical transceiver assembly 8 and a second optical transceiver assembly 9, wherein the first optical transceiver assembly 8 is connected to a first optical fiber 81, and the second optical transceiver assembly 9 is connected to a second optical fiber 91. The first optical transceiver assembly 8 and the second optical transceiver assembly 9 both have an optical adapter 51, and the optical adapter 51 is disposed on the support 1321. The optical adapter 51 of the first optical transceiver assembly 8 is connected to the first optical fiber 81, and the optical adapter 51 of the second optical transceiver assembly 9 is connected to the second optical fiber 91.

[0109] In combination with Example 1, the support member 1321 is arranged in the housing seat 1, and the first optical transceiver assembly 8 and the second optical transceiver assembly 9 are both arranged on the support member 1321. The limit card 7 includes a fixing portion 71 and a claw portion 72, one end of the fixing portion 71 is connected to the claw portion 72, and the fixing portion 71 is connected to the side of the support member 1321 to fix the limit card 7 on the support member 1321; the first optical fiber 81 and the second optical fiber 91 are respectively arranged in the claw portion 72, so that the first optical fiber 81 and the second optical fiber 91 are constrained in the housing seat 1 through the claw portion 72.

[0110] Specifically, the upper end of the support member 1321 is provided with an upper installation groove extending toward the lower surface of the support member 1321, and the lower end of the support member 1321 is provided with a lower installation groove extending toward the upper surface of the support member 1321; the first optical transceiver assembly 8 is provided in the upper installation groove, and the second optical transceiver assembly 9 is provided in the lower installation groove. Since each optical transceiver assembly (the first optical transceiver assembly 8 and / or the second optical transceiver assembly 9) includes an optical transmitting assembly and an optical receiving assembly, the upper installation groove of the embodiment of the present invention includes two bracket inner cavities 13211, and the lower installation groove is also provided with two bracket inner cavities 13211.

[0111] like Figure 19-22As shown, the multi-channel OSFP-XD optical module of the present invention includes a housing 1, a support member 1321 and a limit card 7; the support member 1321 is arranged as an upper and lower two-layer structure (i.e., an upper mounting groove and a lower mounting groove), and the corresponding first optical transceiver assembly 8 is arranged in the upper mounting groove, and the second optical transceiver assembly 9 is arranged in the lower mounting groove, so as to increase the density of the optical module of the present invention; a limit card 7 is arranged in the optical module, and the limit card 7 includes a fixing portion 71 and a claw portion 72, and the fixing portion 71 is connected to the side of the support member 1321, so that the limit card 7 is fixed on the support member 1321, and the first optical fiber 81 and the second optical fiber 91 are respectively arranged in the claw portion 72, so as to constrain the first optical fiber 81 and the second optical fiber 91 in the housing 1 through the claw portion 72.

[0112] The present invention is a high-density optical module. A limit card 7 is arranged in the optical module. The first optical fiber 81 and the second optical fiber 91 in the optical module are constrained in the shell seat 1 by the claw portion 72 on the limit card 7, thereby avoiding the pulling of the optical fiber at the optical transceiver assembly (including the first optical transceiver assembly 8 and the second optical transceiver assembly 9), resulting in a messy distribution of the optical fiber, and further causing the problem of the optical fiber being possibly broken during the installation process.

[0113] In order to explain the complete details of the embodiment of the present invention, the details of the embodiment of the present invention are explained in detail below. Fig. 22 As shown, the claw portion 72 includes a pressing plate 721 and a stop plate 722; the two ends of the pressing plate 721 are respectively connected to a stop plate 722, and the first optical fiber 81 and the second optical fiber 91 are respectively arranged under the pressing plate 721, so as to be constrained by the stop plates 722 at both ends of the pressing plate 721, so as to gather the first optical fiber 81 and the second optical fiber 91 in the claw portion 72.

[0114] like Fig. 22As shown, the limit card 7 of the embodiment of the present invention includes a fixing portion 71 and a claw portion 72, and the claw portion 72 includes a pressing plate 721 and a stop plate 722; the first optical transceiver assembly 8 and the second optical transceiver assembly 9 of the embodiment of the present invention belong to the upper installation groove and the lower installation groove respectively. Since the first optical transceiver assembly 8 is arranged in the upper installation groove, the first optical transceiver assembly 8 is connected to the first optical fiber 81. The first optical transceiver assembly 8 pulls the first optical fiber 81, so that the first optical fiber 81 is usually in the upper layer, and the corresponding second optical transceiver assembly 9 is in the lower installation groove. The second optical fiber 91 is usually located in the lower layer, and the first optical fiber 81 is pressed to be flush with the second optical fiber 91 by the pressing plate 721 on the claw portion 72, and the first optical fiber 81 and the second optical fiber 91 are constrained by the stop plates 722 on both sides of the pressing plate 721, so that the first optical fiber 81 and the second optical fiber 91 are constrained within the range constrained by the pressing plate 721 and the stop plate 722, thereby avoiding pulling of the optical fiber at the optical transceiver assembly (the first optical transceiver assembly 8 and the second optical transceiver assembly 9), thereby avoiding the problem of the optical fiber being possibly broken during the installation process.

[0115] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An OSFP-XD optical module, characterized in that: It comprises a housing seat (1) and a heat sink (2); A first mounting groove (11) is arranged above the housing seat (1), the heat sink (2) is arranged in the first mounting groove (11), and a plurality of air ducts (21) are arranged on the heat sink (2) along the axial direction of the housing seat (1); At least one air flow groove (15) is provided on the housing seat (1), and the air flow groove (15) is arranged opposite to one or more air inlets of the air duct (21), so as to draw external cold air into the air duct (21) through the air flow groove (15) to dissipate heat inside the optical module.

2. The OSFP-XD optical module according to claim 1, characterized in that: The OSFP-XD optical module also includes a cage (3); A grid through hole (31) is provided on one end of the cage (3); the cage (3) is sleeved on the housing base (1); an air outlet of the air duct (21) is connected to the grid through hole (31), so as to dissipate heat for the optical module through the air flow groove (15), the air duct (21) and the grid through hole (31).

3. The OSFP-XD optical module according to claim 2, characterized in that: The cage (3) is provided with a second installation groove (32), a heat sink (321) is provided in the second installation groove (32), and the bottom surface of the heat sink (321) extends toward the inside of the cage (3) with a first preset thickness so that the heat sink (321) fits on the heat sink (2).

4. The OSFP-XD optical module according to claim 1, characterized in that: A glue overflow groove (111) is provided on the bottom surface of the first installation groove (11), and the heat sink (2) is mounted on the glue overflow groove (111).

5. The OSFP-XD optical module according to claim 1, characterized in that: The optical module also includes a pull ring (4); The pull ring (4) comprises a pair of sliding plates (41), and a first limiting protrusion (411) is provided on the inner wall of the sliding plate (41), and the first limiting protrusion (411) extends toward the inner side of the sliding plate (41); The housing seat (1) comprises a first housing (13), the first housing (13) comprises two side plates (131), a long groove (1311) is provided on the outer wall of the side plate (131), and a sliding groove (13111) is provided at one end of the long groove (1311) along the axial direction of the first housing (13); The sliding plate (41) is arranged in the long groove (1311) so that the first limiting protrusion (411) can be movably arranged in the sliding groove (13111) to realize the assembly of the pull ring (4) and the first shell (13).

6. The OSFP-XD optical module according to claim 5, characterized in that: The tail of the sliding plate (41) is provided with a second limiting protrusion (412) extending vertically upward; The housing base (1) further comprises a second housing (14), wherein the second housing (14) is arranged on the first housing (13); a first limiting groove (141) is arranged on a side plate of the second housing (14), and the second limiting protrusion (412) is arranged in the first limiting groove (141), so as to facilitate setting the second housing (14) on the first housing (13) through the sliding plate (41).

7. The OSFP-XD optical module according to claim 5, characterized in that: The optical module further comprises an optoelectronic component (5), wherein the optoelectronic component (5) is arranged in the first housing (13), and the optoelectronic component (5) comprises at least two groups of optical adapters (51); wherein the two groups of optical adapters (51) are arranged in two layers, one above the other; The head of the first shell (13) is provided with a cavity (132), a support member (1321) is provided in the cavity (132), at least two groups of bracket inner cavities (13211) are provided on the support member (1321), and the optical adapter (51) is arranged in the bracket inner cavity (13211).

8. The OSFP-XD optical module according to claim 5, characterized in that: The tail of the sliding plate (41) is provided with an unlocking protrusion (413) along the axial direction of the sliding plate (41), the other end of the long groove (1311) is provided with an arc-shaped groove (13112), and the unlocking protrusion (413) is arranged in the arc-shaped groove (13112); Metal springs are respectively arranged on the inner walls of both sides of the cage (3), one end of the metal spring is connected to the inner wall of the cage (3), and the metal spring is inclined at a preset angle to the inner wall of the cage (3); The cage (3) is sleeved on the outer side of the housing (1) so as to lock and unlock the optical module via the metal spring and the unlocking protrusion (413).

9. A method for installing an OSFP-XD optical module, characterized in that: For installing the OSFP-XD optical module according to any one of claims 1 to 8, the installation method comprises: Installing the heat sink (2) into the first installation groove (11) of the housing base (1); The air inlets of one or more air ducts (21) in the heat sink (2) are aligned with the air flow groove (15) so as to dissipate heat from the optical module through the air duct (21) and the air flow groove (15).

10. The method for installing an OSFP-XD optical module according to claim 9, characterized in that: The OSFP-XD optical module further comprises a cage (3), a heat sink (321) is arranged on the cage (3), and a contact portion contacting the heat sink (2) is arranged on the heat sink (321), the contact portion passes through a notch arranged on the cage (3) to complete contact with the surface of the heat sink (2) of the OSFP-XD optical module installed in the cage (3), and the installation method specifically comprises: Inserting the OSFP-XD optical module into the first mounting groove (11) of the housing seat (1), the fin (12) of the OSFP-XD optical module lifts the heat sink (321) on the cage (3), thereby protecting the end surface of the heat sink (2) from colliding with the end surface of the abutment portion of the heat sink (321) during the insertion process; After the OSFP-XD optical module is inserted into the housing (1), the fin (12) is separated from the contact with the abutment portion, and the corresponding abutment portion is tightly abutted against the surface of the heat sink (2) based on the elastic force of the housing (1).

Images