CN117289411A - Photoelectric converter with optimized EMI shielding performance - Google Patents
Photoelectric converter with optimized EMI shielding performance Download PDFInfo
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- CN117289411A CN117289411A CN202311301632.7A CN202311301632A CN117289411A CN 117289411 A CN117289411 A CN 117289411A CN 202311301632 A CN202311301632 A CN 202311301632A CN 117289411 A CN117289411 A CN 117289411A
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- shell
- upper cover
- shielding performance
- emi shielding
- photoelectric converter
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- 239000003292 glue Substances 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 19
- 239000011358 absorbing material Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 5
- BNPSSFBOAGDEEL-UHFFFAOYSA-N albuterol sulfate Chemical compound OS(O)(=O)=O.CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1.CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1 BNPSSFBOAGDEEL-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 20
- 238000005192 partition Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000002114 nanocomposite Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 241000555745 Sciuridae Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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- 238000000638 solvent extraction Methods 0.000 description 1
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Classifications
-
- 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
- G02B6/4274—Electrical aspects
- G02B6/4277—Protection against electromagnetic interference [EMI], e.g. shielding means
-
- 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
- G02B6/4256—Details of housings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a photoelectric converter for optimizing EMI shielding performance, which comprises a shell, a main core plate and an unlocking device, wherein the shell comprises a bottom shell and an upper cover, an installation cavity is formed by splicing the bottom shell and the upper cover, and isolation glue is filled at the splicing position of the bottom shell and the upper cover and is formed by mixing conductive glue and a composite wave absorbing material; the main core plate is arranged in the mounting cavity; the unlocking device comprises an unlocking handle and an unlocking piece which are connected, and the unlocking piece is connected with the bottom shell in a sliding manner. In the invention, the isolation glue formed by mixing the conductive glue and the composite wave-absorbing material is filled at the joint of the bottom shell and the upper cover of the shell, the gap can be reduced by filling the conductive glue, and simultaneously, the electromagnetic energy generated by the main core board is shielded in the cage-shaped structure formed by splicing the bottom shell and the upper cover due to the existence of the composite wave-absorbing material and the EMI can be better blocked and the common-mode radiation is absorbed.
Description
Technical Field
The present invention relates to the field of photoelectric technology, and in particular, to a photoelectric converter for optimizing EMI shielding performance.
Background
The optical module is the most important component of optical communication equipment, is an interconnection channel between an optical world and an electric world, and is an optoelectronic device for photoelectric and electro-optical conversion. Under the current 5G communication and cloud computing big data related application requirements, the transmission rate of the optical module is higher and higher, the transmission rate of the optical module is improved, meanwhile, the phenomenon of electromagnetic disturbance is more and more serious, and particularly, the optical module is easily affected by external interference to use due to electromagnetic noise generated by components of the optical transceiver module. At present, electromagnetic shielding is usually performed by adopting a squirrel cage mode, but a circle of narrow gap still exists between the optical module base and the upper cover, so that electromagnetic waves in the optical module cage can radiate out from the gap, and an antenna effect is formed.
Accordingly, there is a need to provide a new photoelectric converter that optimizes EMI shielding performance to solve the above-described technical problems.
Disclosure of Invention
The invention mainly aims to provide a photoelectric converter with optimized EMI shielding performance, which aims to solve the problem that electromagnetic waves in an optical module cage can radiate out from a narrow gap between a base and an upper cover to form an antenna effect.
In order to achieve the above object, the photoelectric converter for optimizing the EMI shielding performance provided by the invention comprises a shell, a main core board and an unlocking device, wherein the shell comprises a bottom shell and an upper cover, the bottom shell and the upper cover are spliced to form a mounting cavity, and an isolation adhesive is filled at the spliced position of the bottom shell and the upper cover and is formed by mixing conductive adhesive and a composite wave absorbing material; the main core plate is arranged in the mounting cavity; the unlocking device comprises an unlocking handle and an unlocking piece which are connected, and the unlocking piece is in sliding connection with the bottom shell.
In an embodiment, a clamping groove is formed in the upper edge of the bottom shell, and the isolation glue is filled in the clamping groove; the lower edge of the upper cover is provided with a clamping strip, the clamping strip is clamped into the clamping groove, and the lower edge of the upper cover is abutted against the upper edge of the bottom shell.
In an embodiment, a contact point is disposed on a side wall of the card strip, and the contact point is used for abutting against a side wall of the card slot.
In an embodiment, the contact points are disposed on two opposite sidewalls of the clip strip, and the contact points on the two opposite sidewalls are disposed in a staggered manner.
In one embodiment, the main core board is provided with a plugging area and a core area, and the main core board is also provided with a grounding feed point; the photoelectric converter for optimizing the EMI shielding performance further comprises a shielding shell and a shielding cover, wherein the shielding shell is arranged outside the core area, pins are arranged at the edge of the shielding shell, and the pins are connected with the grounding feed point.
In one embodiment, the main core board is provided with a grounding copper exposure ring, and the track of the grounding copper exposure ring is matched with the edge shape of the shielding shell; the photovoltaic converter that optimizes EMI shielding performance further includes a conductive gasket sandwiched between the shielding shell and the ground copper-exposing ring.
In one embodiment, the shielding shell comprises a metal layer, an isolation layer and a wave absorbing layer which are sequentially arranged from inside to outside.
In an embodiment, the photoelectric converter for optimizing EMI shielding performance further includes a port, a partition is horizontally disposed in the mounting cavity, the partition divides the mounting cavity into a first cavity and a second cavity, the main core board is disposed in the first cavity, the port is disposed in the second cavity, and the port is connected with the main core board through an optical fiber.
In an embodiment, a first limit notch is formed in the side wall of the bottom shell, a second limit notch is formed in the side wall of the upper cover, and the first limit notch and the second limit notch are spliced to form a limit groove; the unlocking arms are arranged on two sides of the unlocking piece and slidably arranged in the limiting grooves.
In an embodiment, the bottom shell is provided with a mounting groove, the photoelectric converter for optimizing the EMI shielding performance further comprises an elastic piece arranged in the mounting groove, the unlocking arm is provided with a limiting piece bent into the mounting groove, and the elastic piece is abutted against one end wall of the limiting piece and one end wall of the mounting groove.
According to the technical scheme, the isolation glue formed by mixing the conductive glue and the composite wave-absorbing material is filled at the joint of the bottom shell and the upper cover of the shell, gaps can be reduced due to the fact that the conductive glue can be filled, meanwhile, due to the fact that the composite wave-absorbing material exists, EMI can be better blocked, common-mode radiation is absorbed, and electromagnetic energy generated by the main core plate is shielded in a cage-shaped structure formed by splicing the bottom shell and the upper cover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a photoelectric converter for optimizing EMI shielding performance according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an exploded view of a photoelectric converter for optimizing EMI shielding performance according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating assembly of a bottom chassis and a main core board according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating assembly of a bottom case and an unlocking device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of partitioning of a main core board according to an embodiment of the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a photoelectric converter with optimized EMI shielding performance, which aims to solve the problem that electromagnetic waves in an optical module cage can radiate out from a narrow gap between a base and an upper cover to form an antenna effect.
As shown in fig. 1 to 3, in an embodiment of the present invention, a photoelectric converter 100 for optimizing EMI shielding performance includes a housing 1, a main core 2, and an unlocking device 3, wherein the housing 1 includes a bottom shell 11 and an upper cover 12, a mounting cavity 13 is formed by combining the bottom shell 11 and the upper cover 12, and an isolation glue is filled at the joint of the bottom shell 11 and the upper cover 12, and is formed by mixing conductive glue and a composite wave absorbing material; the main core plate 2 is arranged in the mounting cavity 13; the unlocking device 3 comprises an unlocking handle 31 and an unlocking piece 32 which are connected, and the unlocking piece 32 is in sliding connection with the bottom shell 11.
In the above embodiment, the connection between the bottom shell 11 and the upper cover 12 of the housing 1 is filled with the isolation glue formed by mixing the conductive glue and the composite wave-absorbing material, so that the gap can be reduced by filling the conductive glue, and meanwhile, due to the existence of the composite wave-absorbing material, the EMI can be better blocked, the common mode radiation is absorbed, and the electromagnetic energy generated by the main core board 2 is shielded in the cage-shaped structure formed by combining the bottom shell 11 and the upper cover 12.
The composite wave-absorbing material adopts carbon-based nano composite fibers with Ni and MnO particles attached to the surfaces, the carbon-based nano composite fibers are mixed into conductive adhesive, the conductive adhesive is used for conducting the bottom shell 11 and the upper cover 12, and the carbon-based nano composite fibers are used for increasing the magnetic saturation rate and improving the impedance matching; and the carbon-based nano composite fiber has higher surface roughness, thereby having good wave absorbing performance. The carbon-based nano composite fiber is used as a nano material and can fill the gap of the density of the conductive adhesive material.
The invention of the present application is how to reduce EMI radiation of the main core board 2, rather than the arrangement of the electrical components on the main core board 2, the types of the electrical components and the circuit connection manner on the main core board 2 are all related art.
In an embodiment, a clamping groove 111 is formed on the upper edge of the bottom shell 11, and isolation glue is filled in the clamping groove 111; the lower edge of the upper cover 12 is provided with a clamping strip 121, the clamping strip 121 is clamped into the clamping groove 111, and the lower edge of the upper cover 12 abuts against the upper edge of the bottom shell 11. The joint of the upper cover 12 and the bottom shell 11 has the following layer structures, wherein the first layer is an isolation adhesive layer, a clamping strip 121 and an isolation adhesive layer in sequence from inside to outside; the second type is a clamping groove 111 side wall-an isolation glue layer-a clamping strip 121-an isolation glue layer-a clamping groove 111 side wall from inside to outside in sequence; the second type sequentially comprises a clamping groove 111 side wall, an isolation glue layer and a clamping groove 111 side wall from inside to outside; that is, the connection between the upper cover 12 and the bottom case 11 in the technical solution of the present application has at least one layer of metal structure and one layer of isolation layer mechanism formed by conductive adhesive and composite wave-absorbing material, so that the gap between the upper cover 12 and the bottom case 11 can be completely eliminated, the diffraction path of electromagnetic waves can be prolonged, the reflection attenuation of electromagnetic waves can be increased, thereby preventing electromagnetic waves from leaking from the housing 1 of the photoelectric converter 100 for optimizing EMI shielding performance, and simultaneously preventing external electromagnetic waves from radiating into the inside of the photoelectric converter 100 for optimizing EMI shielding performance to affect the performance of the photoelectric converter 100 for optimizing EMI shielding performance. That is, the present application plays a very good electromagnetic shielding effect by the engagement of the large-sized clip strip 121 and the clip groove 111 which are circumferentially provided.
In an embodiment, the sidewall of the card strip 121 is provided with a contact point 122, and the contact point 122 is used for abutting against the sidewall of the card slot 111. The contact point 122 is separated from the groove wall structure of the clamping groove 111, so that the gap between the bottom shell 11 and the upper cover 12 is divided into a plurality of small sections, and as can be appreciated, the smaller the gap is, the better the shielding effectiveness is. Therefore, the shielding effectiveness is improved by providing the contact point 122 to break the fit gap between the bottom shell 11 and the upper cover 12.
Based on the above embodiment, the opposite side walls of the clip 121 are provided with the contact points 122, and the contact points 122 on the opposite side walls are arranged in a staggered manner. Because the clamping strip 121 has smaller thickness and can generate certain elastic deformation, the number of the elastic contacts can be increased by arranging the contact points 122 on the two opposite sides of the clamping strip 121, the gap between the bottom shell 11 and the upper cover 12 is further reduced, and the shielding energy efficiency is improved. And the contact points 122 on the two opposite side walls are arranged in a staggered manner, so that an elastic contact effect is formed, and the contact reliability of the contacts can be ensured.
In an embodiment, referring to fig. 3 and fig. 5 in combination, the main core board 2 has a plugging area 21 and a core area 22, and the main core board 2 is further provided with a ground feed point 23; the photoelectric converter 100 for optimizing EMI shielding performance further includes a shielding shell 4 and a cover disposed outside the core region 22, and the shielding shell 4 has pins at its edge, which are connected to the ground feed point 23. The electric components are arranged in the core area 22 in a concentrated mode, the shielding shell 4 is communicated with a grounding line through the grounding feed point 23 on the main core board 2, the electric components on the main core board 2 and the receiving and transmitting ports 6 can be separated through the arrangement of the shielding shell 4, the phenomenon that the external radiation is caused by the EM noise generated by the higher and higher working frequency of the integrated circuit on the main core board 2 is avoided, and meanwhile the influence of the external electromagnetic radiation on the work of the electric components on the main core board 2 is avoided. In this application, the core region 22 is defined as a region of the main core board 2 corresponding to the shielding shell 4.
Further, the main core plate 2 is provided with a grounding copper exposure ring 24, and the track of the grounding copper exposure ring 24 is matched with the edge shape of the shielding shell 4; the photoelectric converter 100 that optimizes EMI shielding performance further includes a conductive gasket 5, the conductive gasket 5 being sandwiched between the shield case 4 and the ground copper-exposing ring 24. The conductive gasket 5 is arranged around the shielding shell 4, and the grounding copper exposing ring 24 on the main core plate 2 is connected with the shielding shell 4 through the conductive gasket 5 to form tight combination, so that the conductive continuity of the connection part of the shielding shell 4 and the grounding copper exposing ring 24 is maintained, the thermal resistance is reduced, the voltage at two ends of the connection part is reduced, and the gap shielding efficiency is improved.
In one embodiment, the shielding shell 4 comprises a metal layer, an isolation layer and a wave absorbing layer which are sequentially arranged from inside to outside. The wave absorbing layer is made of an electric loss type material and absorbs electromagnetic waves mainly through interaction with an electric field. The distance between the wave-absorbing layer and the metal layer is one quarter wavelength, namely the thickness of the isolating layer is one quarter wavelength.
In one embodiment, the optoelectronic converter 100 with optimized EMI shielding performance further includes a port 6, a partition 14 is transversely disposed in the mounting cavity 13, the partition 14 divides the mounting cavity 13 into a first cavity 131 and a second cavity 132, the main core 2 is disposed in the first cavity 131, the port 6 is disposed in the second cavity 132, and the port 6 is connected to the main core 2 through an optical fiber. The port 6 and the main core plate 2 are separated by the partition plate 14, so that a two-layer shielding structure is formed at the main core plate 2, specifically, a first-layer shielding structure is formed by the shielding cover, a second-layer shielding structure is formed by the inner wall surface of the first chamber 131 (the inner wall surface of the first chamber 131 is surrounded by the bottom shell 11, the upper cover 12 and the partition plate 14), and a partition area is formed between the two-layer shielding structure, so that better shielding effectiveness is realized.
In addition, the photoelectric converter 100 with optimized EMI shielding performance provided in the present application realizes a hot plug function through the unlocking device 3, so that the photoelectric converter 100 with optimized EMI shielding performance can be smoothly removed from the cage on the system motherboard.
In an embodiment, a first limiting gap 112 is formed on a side wall of the bottom shell 11, a second limiting gap 123 is formed on a side wall of the upper cover 12, and the first limiting gap 112 and the second limiting gap 123 are spliced to form a limiting groove 15; the unlocking member 32 has unlocking arms 321 on both sides, and the unlocking arms 321 are slidably disposed in the limiting grooves 15. The bottom shell 11 is provided with a mounting groove 113, the photoelectric converter 100 for optimizing the EMI shielding performance further comprises an elastic piece 8 arranged in the mounting groove 113, the unlocking arm 321 is provided with a limiting piece 322 bent into the mounting groove 113, and the elastic piece 8 is abutted against one end wall of the limiting piece 322 and one end wall of the mounting groove 113.
The entire EMI shielding performance-optimized photoelectric converter 100 needs to be inserted into a cage on a system motherboard, generally, locking spring pieces corresponding to concave are provided at both sides of the cage, the rear end of the EMI shielding performance-optimized photoelectric converter 100 is inserted through the front end of the cage, during the insertion process, both sides of the EMI shielding performance-optimized photoelectric converter 100 can press the locking spring pieces outwards, after the EMI shielding performance-optimized photoelectric converter 100 is inserted and moved backwards (inwards) relative to the cage into place, the locking spring pieces are just outside the detent portions 324 (the end concave forming detent portions 324 of the unlocking arms 321) corresponding to the two unlocking arms 321, the locking spring pieces restore the initial state inwards, and the rear ends thereof are abutted against the rear ends of the sliding grooves, because the locking spring is propped against the rear end of the sliding groove of the photoelectric converter 100 with the optimized EMI shielding performance, if the photoelectric converter 100 with the optimized EMI shielding performance needs to be removed, the unlocking handle 31 is pulled outwards (i.e. forwards), the unlocking handle 31 moves forwards relative to the front end of the shell 1, the limiting piece 322 compresses the elastic piece 8, meanwhile, the unlocking arm 321, the clamping portion 324 and the protruding point 325 (arranged at the end of the unlocking arm 321) slide forwards relative to the corresponding sliding groove, the protruding point 325 slides inwards and outwards into the inner side of the corresponding locking spring and outwards pushes the locking spring, so that the locking spring is in contact with the rear end of the sliding groove, and at the moment, the photoelectric converter 100 with the optimized EMI shielding performance is pulled out and removed easily under the driving of the unlocking handle 31.
Referring to fig. 3 and 4 in combination, a limiting shaft 323 extending along the sliding direction of the unlocking member 32 is disposed on the limiting plate 322, the limiting shaft 323 passes through the bottom shell 11 and is slidably connected with the bottom shell 11, the limiting shaft 323 is disposed in the mounting groove 113, and the elastic member 8 is sleeved on the limiting shaft 323. Thereby preventing the elastic member 8 from being displaced or ejected, ensuring that the compression direction of the elastic member 8 is kept consistent with the sliding direction of the unlocking member 32. The elastic member 8 may be a spring.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. An electro-optic converter for optimizing EMI shielding performance, the electro-optic converter for optimizing EMI shielding performance comprising:
the shell comprises a bottom shell and an upper cover, wherein the bottom shell and the upper cover are spliced to form a mounting cavity, and an isolation adhesive is filled at the spliced part of the bottom shell and the upper cover and is formed by mixing conductive adhesive and a composite wave-absorbing material;
the main core plate is arranged in the mounting cavity;
the unlocking device comprises an unlocking handle and an unlocking piece which are connected, and the unlocking piece is in sliding connection with the bottom shell.
2. The photoelectric converter for optimizing EMI shielding performance of claim 1, wherein a clamping groove is formed in an upper edge of the bottom shell, and the isolation glue is filled in the clamping groove; the lower edge of the upper cover is provided with a clamping strip, the clamping strip is clamped into the clamping groove, and the lower edge of the upper cover is abutted against the upper edge of the bottom shell.
3. The electro-optic converter of claim 2, wherein the clip strip has contact points on the side walls for the side walls of the clip slot to abut.
4. The optical to electrical converter of claim 3 wherein said contact points are disposed on opposite sidewalls of said clip strip and said contact points on opposite sidewalls are offset.
5. The optical to electrical converter of claim 1 wherein the primary core board has a plug zone and a core zone thereon, the primary core board further having a ground feed point disposed thereon; the photoelectric converter for optimizing the EMI shielding performance further comprises a shielding shell and a shielding cover, wherein the shielding shell is arranged outside the core area, pins are arranged at the edge of the shielding shell, and the pins are connected with the grounding feed point.
6. The EMI shielding performance optimized photoelectric converter of claim 5, wherein the main core board is provided with a ground copper-exposing ring, and a track of the ground copper-exposing ring matches an edge shape of the shielding shell; the photovoltaic converter that optimizes EMI shielding performance further includes a conductive gasket sandwiched between the shielding shell and the ground copper-exposing ring.
7. The photoelectric converter for optimizing EMI shielding performance of claim 5, wherein the shielding shell comprises a metal layer, an isolation layer, and a wave absorbing layer sequentially disposed from inside to outside.
8. The EMI shielding performance optimized photoelectric converter of any one of claims 1-7, further comprising a port, wherein a bulkhead is disposed across the mounting cavity, wherein the bulkhead separates the mounting cavity into a first cavity and a second cavity, wherein the primary core is disposed within the first cavity, wherein the port is disposed within the second cavity, and wherein the port is connected to the primary core by an optical fiber.
9. The photoelectric converter for optimizing EMI shielding performance according to any one of claims 1 to 7, wherein a first limit notch is formed in a side wall of the bottom case, a second limit notch is formed in a side wall of the upper cover, and the first limit notch and the second limit notch are spliced to form a limit groove;
the unlocking arms are arranged on two sides of the unlocking piece and slidably arranged in the limiting grooves.
10. The photoelectric converter for optimizing EMI shielding performance of claim 9, wherein the bottom case is provided with a mounting groove, the photoelectric converter for optimizing EMI shielding performance further comprises an elastic member disposed in the mounting groove, the unlocking arm is provided with a limiting piece bent into the mounting groove, and the elastic member abuts against one end wall of the limiting piece and one end wall of the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311301632.7A CN117289411A (en) | 2023-10-09 | 2023-10-09 | Photoelectric converter with optimized EMI shielding performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311301632.7A CN117289411A (en) | 2023-10-09 | 2023-10-09 | Photoelectric converter with optimized EMI shielding performance |
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| CN117289411A true CN117289411A (en) | 2023-12-26 |
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| CN202311301632.7A Pending CN117289411A (en) | 2023-10-09 | 2023-10-09 | Photoelectric converter with optimized EMI shielding performance |
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| CN114731774A (en) * | 2019-12-31 | 2022-07-08 | 华为技术有限公司 | Optical port shielding and fixing device, optical module and communication equipment |
| US20220326459A1 (en) * | 2019-12-31 | 2022-10-13 | Huawei Technologies Co., Ltd. | Optical port shielding and fastening apparatus, optical module, and communications device |
| CN112782815A (en) * | 2021-02-05 | 2021-05-11 | 武汉华工正源光子技术有限公司 | Optical module and optical module electromagnetic shielding structure for optimizing EMI shielding performance |
| CN215297758U (en) * | 2021-04-22 | 2021-12-24 | 武汉华工正源光子技术有限公司 | Optical module structure |
| CN114875525A (en) * | 2022-06-07 | 2022-08-09 | 兰州理工大学 | Metal/carbon nano composite fiber derived based on MOFs (metal-organic frameworks), and preparation method and application thereof |
| CN116837493A (en) * | 2023-07-12 | 2023-10-03 | 兰州理工大学 | Preparation method of cobalt/attapulgite/carbon nano composite fiber with wave absorbing performance |
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