CN113467011A - QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation - Google Patents
QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation Download PDFInfo
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- CN113467011A CN113467011A CN202110667666.2A CN202110667666A CN113467011A CN 113467011 A CN113467011 A CN 113467011A CN 202110667666 A CN202110667666 A CN 202110667666A CN 113467011 A CN113467011 A CN 113467011A
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- heat dissipation
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- communication module
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
Abstract
The invention relates to a QSFP-DD (quad Small form-factor pluggable) packaged pluggable optical communication module with high-efficiency heat dissipation. The optical module in the optical communication module is connected with the optical cage in a pluggable manner; the radiator is arranged outside the optical cage and corresponds to the heat dissipation port of the optical cage; the heat dissipation composite film is positioned between the optical module and the radiator, and two surfaces of the heat dissipation composite film are respectively attached to the optical module and the radiator; the heat dissipation complex film includes protective layer, heat-conducting layer and pastes the layer, and the heat-conducting layer is located the same layer with pasting the layer, and the heat-conducting layer is located the protective layer surface with pasting the layer. The heat dissipation composite film can meet the requirements of an optical module on quick heat dissipation and friction resistance, effectively ensures the reliability of the optical module, and prolongs the service life of the optical module.
Description
Technical Field
The invention relates to the field of optical communication, in particular to a QSFP-DD (quad Small form-factor pluggable) packaged pluggable optical communication module with high-efficiency heat dissipation.
Background
With the explosive growth of communication data, the data volume transmitted by an optical communication system is larger and larger, and to realize high-speed and long-distance data transmission, a laser with higher power is needed, so that the power consumption and heat generation of an optical module are larger. Meanwhile, the optical module is also being miniaturized, and the miniaturization means that the heat dissipation area is reduced, which increases the heat dissipation pressure. If the heat accumulated inside cannot be conducted to the radiator in time, the performance fluctuation of the laser and the signal interference in the long-distance transmission optical fiber can be caused, the aging of the device can be accelerated, and the service life of an optical module product can be shortened. To solve the hard contact problem between the optical module and the heat sink, the prior art mainly adopts two heat dissipation methods:
the first heat dissipation mode: the heat-conducting silicone grease is smeared between the optical module and the radiator, although the heat resistance of the heat-conducting silicone grease is low, the heat-conducting silicone grease is not resistant to friction, the heat-conducting silicone grease can be extruded out in the process of plugging and unplugging the optical module, so that the heat-conducting silicone grease between the optical module and the radiator is less and less, and good contact between the optical module and the radiator cannot be guaranteed after the optical module and the radiator are plugged and unplugged for many times.
The second heat dissipation mode is as follows: the scheme of sticking the polyimide adhesive tape on the surface of the optical module or the bottom of the radiator is high in thermal resistance and cannot meet the requirement of rapid heat conduction of the optical module.
In summary, the prior art solutions do not solve the heat dissipation problem due to the increased power and the miniaturization of the optical device.
Disclosure of Invention
The present invention provides a QSFP-DD packaged pluggable optical communication module with high heat dissipation efficiency, which is directed to the above-mentioned drawbacks of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation is constructed and comprises an optical module, an optical cage, a heat radiator and a heat dissipation composite film;
the optical module is connected with the optical cage in a pluggable manner; the radiator is arranged outside the light cage and corresponds to a radiating port of the light cage; the heat dissipation composite film is positioned between the optical module and the radiator, and two surfaces of the heat dissipation composite film are respectively attached to the optical module and the radiator;
the heat dissipation complex film includes protective layer, heat-conducting layer and pastes the layer, the heat-conducting layer with paste the layer and be located the same layer, just the heat-conducting layer with paste the layer and be located the protective layer surface.
Further, in the QSFP-DD package pluggable optical communication module with high heat dissipation efficiency according to the present invention, the adhesive layer is attached to the optical module, the heat conductive layer is attached to the optical module, and the protective layer is attached to the bottom of the heat sink.
Further, in the QSFP-DD package pluggable optical communication module with high heat dissipation efficiency according to the present invention, the adhesive layer is attached to a side edge adjacent to the bottom of the heat sink, the heat conductive layer is attached to the bottom of the heat sink, and the protective layer is attached to the optical module.
Further, in the QSFP-DD package pluggable optical communication module with high efficiency heat dissipation according to the present invention, the adhesive layer is located outside the heat conducting layer, and the adhesive layer surrounds the heat conducting layer for a circle.
Furthermore, in the QSFP-DD packaged pluggable optical communication module with high efficiency heat dissipation, the shape of the adhesive layer is in a shape of Chinese character 'hui', and the adhesive layer is positioned on the periphery of the protective layer;
the heat conducting layer fills the inner area of the adhesive layer.
Further, in the high-efficiency heat dissipation QSFP-DD package pluggable optical communication module, the heat conduction layer and the adhesive layer have the same height.
Further, in the QSFP-DD package pluggable optical communication module with high efficiency heat dissipation according to the present invention, a total area of the heat conducting layer and the adhesive layer is equal to an area of the protective layer.
Furthermore, in the QSFP-DD package pluggable optical communication module with high efficiency heat dissipation, the protective layer is a metal foil or a polyimide film.
Furthermore, in the high-efficiency heat dissipation QSFP-DD package pluggable optical communication module, the heat conduction layer is a phase change heat conduction material film.
Furthermore, in the QSFP-DD package pluggable optical communication module with high efficiency heat dissipation, the shape of the heat conduction layer is consistent with the shape of the bottom of the heat sink, and the area of the heat conduction layer is the same as the area of the bottom of the heat sink;
the radiator is a metal radiator.
The QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation has the following beneficial effects: the heat dissipation composite film can meet the requirements of an optical module on quick heat dissipation and friction resistance, effectively ensures the reliability of the optical module, and prolongs the service life of the optical module.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a QSFP-DD encapsulated pluggable optical communication module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heat dissipation composite film 40 according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
In a preferred embodiment, referring to fig. 1 and fig. 2, the QSFP-DD package-pluggable optical communication module with high efficiency in this embodiment includes an optical module 10, an optical cage 20, a heat sink 30, and a heat dissipation composite film 40, where the optical module 10 is connected to the optical cage 20 in a pluggable manner, and the plugging direction refers to fig. 1, and the structures of the optical module 10 and the optical cage 20 may refer to the QSFP-DD package standard. The heat sink 30 is mounted outside the light cage 20, and the heat sink 30 corresponds to a heat sink opening (not shown in fig. 1) of the light cage 20, which opening is equal to or larger than the bottom of the heat sink 30, so that the bottom of the heat sink 30 can completely contact the heat dissipation compound film 40. The heat dissipation composite film 40 is located between the optical module 10 and the heat sink 30, and two sides of the heat dissipation composite film 40 are respectively bonded to the optical module 10 and the heat sink 30, where the bonding is that two sides of the heat dissipation composite film 40 are respectively in close contact with the optical module 10 and the heat sink 30, and no gap is formed in the middle, so that heat of the optical module 10 can be quickly conducted to the heat sink 30 through the heat dissipation composite film 40, and then the heat is released into the air by the heat sink 30, thereby achieving the purpose of heat dissipation. Alternatively, the heat sink 30 is a metal heat sink having good heat dissipation performance.
The heat dissipation composite film 40 includes a protective layer 401, a heat conductive layer 402, and an adhesive layer 403, the heat conductive layer 402 and the adhesive layer 403 are located on the same layer, and the heat conductive layer 402 and the adhesive layer 403 are located on the surface of the protective layer 401. The heat conductive layer 402 and the adhesive layer 403 are combined with the protective layer 401 by means of adhesion, heat pressing, or the like, so that the protective layer 401, the heat conductive layer 402, and the adhesive layer 403 are combined into a whole. The protective layer 401 is made of a friction-resistant material to enhance the friction-resistant performance between the optical module 10 and the heat sink 30. Alternatively, the protective layer 401 is a metal foil, a polyimide film, or the like, and a material having similar performance to the metal foil or the polyimide film may be used. The heat conducting layer 402 is made of a material with low thermal resistance, so that heat generated by the optical module 10 can be quickly conducted out, and then dissipated through the heat sink 30.
The heat dissipation composite film can meet the requirements of an optical module on quick heat dissipation and friction resistance, effectively guarantees the reliability of the optical module, and prolongs the service life of the optical module.
In the high-efficiency heat dissipation QSFP-DD package pluggable optical communication module of some embodiments, the heat dissipation composite film 40 provides two mounting methods, which can be selected as required:
the first installation mode: the heat dissipation composite film 40 is attached to the optical module 10, that is, the adhesive layer 403 is attached to the optical module 10, and at this time, the heat conductive layer 402 is attached to the optical module 10 and the protective layer 401 is attached to the bottom of the heat sink 30. The adhesion of the heat conductive layer 402 to the optical module 10 means that the heat conductive layer 402 is in close contact with the optical module 10, and no gap is formed in the middle, so that heat of the optical module 10 can be quickly transferred to the heat conductive layer 402. The protective layer 401 is attached to the bottom of the heat sink 30, which means that the protective layer 401 is in close contact with the heat sink 30 without a gap in the middle, so that the heat of the heat conductive layer 402 is rapidly transferred to the heat sink 30. After the heat dissipation composite film 40 is adhered to the optical module 10, the protection layer 401 is located outside the optical module 10, and the protection layer 401 protects the heat conduction layer 402 during repeated plugging and unplugging of the optical module 10, so that the heat conduction layer 402 is prevented from being worn by the optical module 10 during repeated plugging and unplugging.
The second installation mode is as follows: the heat-dissipating composite film 40 is attached to the bottom of the heat sink 30, that is, the adhesive layer 403 is attached to the side adjacent to the bottom of the heat sink 30, and at this time, the heat-conducting layer 402 is attached to the bottom of the heat sink 30, and the protective layer 401 is attached to the optical module 10. The heat conductive layer 402 is attached to the bottom of the heat sink 30, which means that the heat conductive layer 402 is in close contact with the bottom of the heat sink 30 without a gap therebetween, so that the heat of the heat conductive layer 402 is rapidly transferred to the heat sink 30. The protective layer 401 is attached to the optical module 10, that is, the protective layer 401 is in close contact with the optical module 10 without a gap therebetween, so that heat of the optical module 10 can be quickly transferred to the heat conductive layer 402. After the heat dissipation composite film 40 is adhered to the bottom of the heat sink 30, the optical module 10 only contacts the protection layer 401 during repeated plugging and unplugging processes, so that the heat conduction layer 402 is prevented from being damaged during repeated plugging and unplugging processes.
This embodiment provides two kinds of heat dissipation complex film 40 mounting means, and two kinds of mounting means all can realize quick heat dissipation and antifriction, can select the mounting means according to the production process is nimble.
In some embodiments of the high-efficiency heat dissipation QSFP-DD package pluggable optical communication module, the heat conduction layer 402 is a phase change heat conduction material film, the phase change heat conduction material film is made of a phase change heat conduction material, the phase change heat conduction material film is a solid material at normal temperature and is in a solid state, the material is softened and melted after reaching a phase change temperature, and the material is restored to a solid material after the temperature is lower than the phase change temperature. The adhesive layer 403 is located on the same layer as the heat conductive layer 402, the adhesive layer 403 is located on the outer side of the heat conductive layer 402, that is, the adhesive layer 403 is located on the outer side, the heat conductive layer 402 is located on the inner side, and the adhesive layer 403 surrounds the heat conductive layer 402. The reason why the adhesive layer 403 is disposed around the heat conducting layer 402 in this embodiment is that the phase change material film changes phase from solid to liquid after reaching the phase change temperature, and the adhesive layer 403 is disposed around the heat conducting layer 402 to prevent the liquid phase change material film from losing and causing heat dissipation failure or damage to the optical module. In addition, the heat conduction layer 402 is softened into a liquid state after reaching the phase change temperature, so that the contact surface can be better soaked and completely fused with the contact surface. When the heat dissipation composite film 40 adopts the first installation manner, the heat conduction layer 402 is softened into a liquid state after reaching the phase change temperature, so as to infiltrate the optical module 10, and complete fusion of the heat conduction layer 402 and the optical module 10 is realized. When the heat dissipation composite film 40 adopts the second installation manner, the heat conduction layer 402 is softened into a liquid state after reaching the phase change temperature, so as to infiltrate the bottom of the heat sink 30, and complete fusion of the heat conduction layer 402 and the bottom of the heat sink 30 is realized. The heat conducting layer 402 of the present embodiment is made of a phase change heat conducting material, so as to achieve better heat conduction.
In the QSFP-DD package pluggable optical communication module with high heat dissipation efficiency according to some embodiments, the adhesive layer 403 is in a shape of a Chinese character 'hui', the adhesive layer 403 is located at the periphery of the protection layer 401, and the heat conduction layer 402 fills the inner area of the adhesive layer 403. The square-shaped structure of the adhesive layer 403 is a closed structure, the square shape can be rectangular or square, and the closed structure can prevent the heat conductive layer 402 from losing after phase change liquefaction. Alternatively, the shape of the adhesive layer 403 may be circular, elliptical, polygonal, etc. The adhesive layer 403 is positioned around the perimeter of the protective layer 401, such that the outer boundary of the adhesive layer 403 is aligned with the perimeter of the protective layer 401 to maximize the expansion of the interior space of the zigzag pattern to accommodate the larger area of the thermally conductive layer 402. In this embodiment, the adhesive layer 403 is disposed around the protective layer 401, so that the loss of the heat conductive layer 402 after phase change liquefaction can be prevented, the area of the heat conductive layer 402 can be increased to the maximum extent, and the heat dissipation efficiency can be improved.
In the high-efficiency heat dissipation QSFP-DD package pluggable optical communication module of some embodiments, the heat conduction layer 402 and the adhesive layer 403 have the same height. If the height of the adhesive layer 403 is greater than that of the heat conductive layer, a gap exists between the heat conductive layer and the contact surface, and the heat conductive performance is seriously affected due to poor heat conductivity of air. If the height of the adhesive layer 403 is smaller than the height of the heat conductive layer, the heat dissipation composite film 40 is not stably adhered and is easily detached. In this embodiment, the heat conducting layer 402 and the adhesive layer 403 have the same height, which not only can ensure the stable adhesion of the heat dissipation composite film 40, but also can ensure the good contact between the heat conducting layer 402 and the contact surface, thereby achieving the best heat conducting performance.
In the QSFP-DD package pluggable optical communication module with high heat dissipation efficiency according to some embodiments, the total area of the heat conducting layer 402 and the adhesive layer 403 is equal to the area of the protective layer 401, and on the premise of stable adhesion, the area of the adhesive layer 403 is reduced as much as possible, so that the area of the heat conducting layer 402 is as large as possible, and the optimal heat dissipation effect is achieved under the same condition of the heat sinks 30.
In the QSFP-DD package pluggable optical communication module with high heat dissipation efficiency according to some embodiments, the shape of the heat conduction layer 402 is consistent with the shape of the bottom of the heat sink 30, and the area of the heat conduction layer 402 is the same as the area of the bottom of the heat sink 30, so that the heat conduction layer 402 and the bottom of the heat sink 30 are completely attached to each other, and therefore, the best heat dissipation effect is achieved under the condition that the heat sinks 30 are the same.
In some embodiments of the QSFP-DD pluggable optical communication module with high heat dissipation efficiency, the manufacturing process of the heat dissipation composite film 40 includes the following steps:
s1, performing middle hollow processing on the adhesive tape with the release film to form an adhesive layer 403;
s2, sticking the hollowed-out adhesive tape on the protective layer 401;
s3, pressing the phase change heat conduction material with the aggregate of the protective layer 401 and the adhesive layer 403;
and S4, pressing the film to a preset thickness, tearing off the release film on the adhesive tape, and removing the excessive phase change heat conduction material on the release film while tearing off the release film to obtain the heat dissipation composite film 40.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation is characterized by comprising an optical module (10), an optical cage (20), a heat sink (30) and a heat dissipation composite film (40);
the optical module (10) is connected with the optical cage (20) in a pluggable manner; the heat sink (30) is arranged outside the light cage (20), and the heat sink (30) corresponds to a heat dissipation port of the light cage (20); the heat dissipation composite film (40) is positioned between the optical module (10) and the radiator (30), and two surfaces of the heat dissipation composite film (40) are respectively attached to the optical module (10) and the radiator (30);
the heat dissipation complex film (40) includes protective layer (401), heat-conducting layer (402) and pastes layer (403), heat-conducting layer (402) with paste layer (403) and be located the same layer, just heat-conducting layer (402) with paste layer (403) and be located protective layer (401) surface.
2. The QSFP-DD package pluggable optical communication module of claim 1, wherein the adhesive layer (403) is adhered to the optical module (10), the heat conductive layer (402) is adhered to the optical module (10), and the protective layer (401) is adhered to the bottom of the heat sink (30).
3. The QSFP-DD package pluggable optical communication module of claim 1, wherein the adhesive layer (403) is adhered to a side edge adjacent to the bottom of the heat sink (30), the heat conductive layer (402) is adhered to the bottom of the heat sink (30), and the protective layer (401) is adhered to the optical module (10).
4. The QSFP-DD package pluggable optical communication module of claim 1, wherein the adhesive layer (403) is located on the outer side of the heat conductive layer (402), and the adhesive layer (403) surrounds the heat conductive layer (402) for a circle.
5. The QSFP-DD package pluggable optical communication module of claim 4, wherein the adhesive layer (403) is in a shape of a Chinese character 'hui', and the adhesive layer (403) is located at the periphery of the protection layer (401);
the heat conductive layer (402) fills the inner area of the adhesive layer (403).
6. The QSFP-DD package pluggable optical communication module of claim 1, wherein the heat conducting layer (402) and the adhesive layer (403) have the same height.
7. The QSFP-DD package pluggable optical communication module of claim 1, wherein the total area of the heat conducting layer (402) and the adhesive layer (403) is equal to the area of the protective layer (401).
8. The QSFP-DD package pluggable optical communication module of claim 1, wherein the protection layer (401) is a metal foil or a polyimide film.
9. The QSFP-DD package-pluggable optical communication module of claim 1, wherein the heat conducting layer (402) is a phase-change heat conducting material film.
10. The QSFP-DD package pluggable optical communication module of claim 1, wherein the heat conducting layer (402) has a shape conforming to the bottom shape of the heat sink (30), and the area of the heat conducting layer (402) is the same as the bottom area of the heat sink (30);
the heat sink (30) is a metal heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667666.2A CN113467011A (en) | 2021-06-16 | 2021-06-16 | QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667666.2A CN113467011A (en) | 2021-06-16 | 2021-06-16 | QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation |
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| Publication Number | Publication Date |
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| CN113467011A true CN113467011A (en) | 2021-10-01 |
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| CN202110667666.2A Pending CN113467011A (en) | 2021-06-16 | 2021-06-16 | QSFP-DD packaged pluggable optical communication module with high-efficiency heat dissipation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494591A (en) * | 2022-09-19 | 2022-12-20 | 烽火通信科技股份有限公司 | Compound cooling system of pluggable optical module and optical communication equipment |
-
2021
- 2021-06-16 CN CN202110667666.2A patent/CN113467011A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494591A (en) * | 2022-09-19 | 2022-12-20 | 烽火通信科技股份有限公司 | Compound cooling system of pluggable optical module and optical communication equipment |
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