CN113138447B - Optical module tube shell and optical module using same - Google Patents
Optical module tube shell and optical module using same Download PDFInfo
- Publication number
- CN113138447B CN113138447B CN202110275190.8A CN202110275190A CN113138447B CN 113138447 B CN113138447 B CN 113138447B CN 202110275190 A CN202110275190 A CN 202110275190A CN 113138447 B CN113138447 B CN 113138447B
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- groove
- base
- upper cover
- optical module
- light
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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
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
-
- 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
-
- 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
- G02B6/426—Details of housings mounting, engaging or coupling of the package to a board, a frame or a panel
- G02B6/4261—Packages with mounting structures to be pluggable or detachable, e.g. having latches or rails
-
- 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
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses an optical module tube shell and an optical module using the same. This optical module tube shell includes a base, an upper cover and an encapsulation pull ring subassembly, the base with upper cover looks block be equipped with the LC interface on the base, the inboard of LC interface is provided with the optical assembly draw-in groove, encapsulation pull ring subassembly is including the locking plate of a plastic handle and a U-shaped that is connected, the locking plate sets up the base with between the upper cover. The optical module tube shell and the optical module using the same have unlocking devices, so that the optical module can be conveniently plugged and pulled out, electromagnetic isolation shielding can be effectively carried out among all components in the optical module, and electromagnetic shielding between the inside and the outside of the optical module is realized, so that the optical module can run with a qualified error rate, and a switching system comprising a plurality of optical modules can also stably run.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to an optical module tube shell and an optical module using the same.
Background
With the large bandwidth, wide connection and low time delay of the 5G network, the data communication traffic is greatly improved, and the market demand on the network is increased greatly, so that the traffic of a telecommunication backbone network is increased rapidly, and higher requirements are provided for data transmission in a data center.
At present, most optical modules are pluggable, and plugging and unplugging actions are often required in the using process, so that an unlocking device is required for the optical modules, and the optical modules can be smoothly unplugged from an installation cage of the signal exchange equipment. In addition, as the transmission rate of the optical module is increased, the optical module is more sensitive to electromagnetic interference, and the electromagnetic shielding mode is required to be refined and evolved continuously. The electromagnetic shielding comprises two parts, namely isolation shielding between each electric chip functional part in the optical module and electromagnetic shielding between the inside and the outside of the optical module, wherein the two parts are required to be made, so that the optical module can run with qualified error rate, and meanwhile, a switching system comprising a plurality of optical modules can also run stably.
Disclosure of Invention
In order to solve the problems, the invention provides an optical module tube shell and an optical module using the same.
According to an aspect of the present invention, an optical module package is provided, which includes a base, an upper cover, and an encapsulated pull-ring assembly, wherein the base and the upper cover are engaged, an LC interface is disposed on the base, an optical assembly slot is disposed inside the LC interface, the encapsulated pull-ring assembly includes a plastic handle and a U-shaped locking plate, and the locking plate is disposed between the base and the upper cover.
In some embodiments, a longitudinal ridge is arranged in the middle of the base, the extending direction of the longitudinal ridge is consistent with the longitudinal direction of the base, and a longitudinal guide groove is further arranged in the middle of the upper cover and is in contraposition fit with the longitudinal ridge. The longitudinal ridge and the longitudinal channel thereby enable a hermetic electrical isolation barrier for isolating cross-talk between electrical signals between the optical transmit assembly and the optical receive assembly.
In some embodiments, the base is further provided with a first transverse ridge and a second transverse ridge at a position away from the LC interface, and the upper cover is provided with a third transverse ridge and a fourth transverse ridge. Therefore, the transverse first ridge, the transverse second ridge, the transverse third ridge and the transverse fourth ridge are used for shielding electric signals of components such as PCBAs and the like mounted on the base so as not to interfere with electronic equipment outside the optical module.
In some embodiments, two second screw holes and two upper cover clamping positions are respectively arranged at two ends of the base, two third screw holes and two base clamping positions are arranged on the upper cover, wherein the two second screw holes and the two third screw holes are respectively fixed through two upper cover screws, and the two upper cover clamping positions and the two base clamping positions are respectively clamped. Therefore, the fixing of the two ends of the tube shell is realized through the structure.
In some embodiments, the side of the base is provided with a first groove, a second groove and a locking plate guide groove, the upper cover is provided with a third groove and a fourth groove, wherein the third groove is tightly attached to the second groove, and the fourth groove is tightly attached to the first groove in an alignment manner. Therefore, the first groove, the second groove, the third groove and the fourth groove are closely aligned with each other, so that a plurality of grooves for mounting can be formed.
In some embodiments, the top ends of both sides of the locking plate are respectively provided with a locking head, two first limiting protrusions are further arranged between the locking head and the plastic handle, the locking head and the first limiting protrusions are respectively embedded in the grooves formed by the second groove and the third groove, and the first limiting protrusions are limited by the sides of the second groove and the third groove. Therefore, the mounting structure ensures the stability of the locking plate when pulled and the reliability of pulling for a plurality of times for a long time.
In some embodiments, the locking plate is provided with a second limiting protrusion and a limiting guide edge, the second limiting protrusion is limited by the side surface of the fourth groove, and meanwhile, the limiting guide edge is in contact with the locking plate guide groove for limiting. Thereby, the position and the sliding area of the locking piece are further limited.
In some embodiments, the locking tab is provided with a hook having a spring thereon and fitting into the interior of the first recess. This configuration can assist in operations such as unlocking the optical module.
According to an aspect of the present invention, there is provided an optical module using the optical module package, the base is mounted with a PCBA, a light emitting component and a light receiving component, wherein the light emitting component and the light receiving component are mounted in the light component card slot.
In some embodiments, the light emitting module and the light receiving module are fixed by three light port screws and light port pressing strips, wherein three first screw holes are arranged on the base side by side, and each light port screw is installed in each first screw hole. Thereby, a manner of mounting and fixing the light emitting module and the light receiving module is provided.
Drawings
Fig. 1 is a schematic structural diagram of an optical module package according to an embodiment of the present invention;
FIG. 2 is a first schematic structural diagram of the base shown in FIG. 1;
FIG. 3 is a second schematic structural view of the base shown in FIG. 1;
FIG. 4 is a first schematic structural view of the upper cover shown in FIG. 1;
FIG. 5 is a second schematic structural view of the upper cover shown in FIG. 1;
FIG. 6 is a first schematic view of the encapsulated tab assembly of FIG. 1;
FIG. 7 is a second schematic structural view of the encapsulated tab assembly of FIG. 1;
fig. 8 is an exploded schematic diagram of an optical module to which the optical module case shown in fig. 1 is applied.
In the figure: the tab encapsulation component comprises a base 100, an LC interface 110, a first screw hole 120, a second screw hole 121, an optical component clamping groove 130, a slope 131, a longitudinal ridge 140, a transverse first ridge 141, a transverse second ridge 142, a first groove 150, a second groove 151, a locking plate guide groove 152, a label groove 160, an upper cover clamping position 170, an upper cover 200, a third screw hole 210, a longitudinal guide groove 220, a transverse third ridge 221, a transverse fourth ridge 222, a third groove 230, a fourth groove 231, a base clamping position 240, a light path direction arrow 250, a tab encapsulation component 300, a plastic handle 310, a rib-shaped step 311, a locking plate 320, a locking head 321, a first limiting protrusion 322, a second limiting protrusion 323, a limiting guide edge 324, a clamping hook 330, a PCBA400, an optical emission component 510, an optical receiving component 520, an optical port screw 610, an optical port pressing strip 611, an upper cover screw 620 and a spring 630.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 schematically shows the structure of an optical module package according to the present invention, which comprises a base 100, a lid 200 and an encapsulated tab assembly 300, as shown in fig. 1-3, wherein the base 100 and the lid 200 are engaged and fixed by two lid screws 620. The LC interface 110 is disposed on the base 100 and is responsible for connecting the optical module to an external optical path.
A U-shaped locking plate 320 is disposed in the groove between the base 100 and the upper cover 200, the locking plate 320 is connected to a plastic handle 310 to form the rubber-coated pull-ring assembly 300, and the plastic handle 310 is pulled outward to drive the locking heads 321 at the top ends of the two sides of the locking plate 320, so as to unlock the optical module.
Fig. 2 shows one of the angles of the base of fig. 1, and fig. 3 shows the other angle of the base of fig. 1. As shown in fig. 2-3, the LC interface 110 is responsible for connecting the optical module with an external optical signal, and the number of through holes included in the LC interface 110 is between 1 and 4, and the number of through holes may be different according to different optical module packaging forms, and the number of through holes shown in the diagram provided in this embodiment is 2.
And the inner side of the LC interface 110 is provided with an optical component clamping groove 130, the optical component clamping groove 130 is used for installing the light emitting and receiving component, after installation, a three-hole optical port pressing strip 611 can be placed at an optical port for installing the light emitting and receiving component, and is screwed with three first screw holes 120 arranged side by side on the base 100 through the matching of three optical port screws 610, so that the light emitting and receiving component is fixed in the clamping groove. In order to achieve tight and uniform pressing, a slope 131 is disposed at a corner of the card slot 130, and the slope 131 may be a slope or an arc according to actual matching requirements.
A longitudinal ridge 140 is provided at the middle of the base 100, the extending direction of the longitudinal ridge 140 is consistent with the long side of the base 100, i.e. the longitudinal direction, and the longitudinal ridge 140 is located between the light emitting module and the light receiving module for isolating crosstalk between electrical signals of the two. And a transverse first ridge 141 and a transverse second ridge 142 are further disposed on the base 100 away from the LC interface 110, and the transverse first ridge 141 and the transverse second ridge 142 are used for shielding electric signals of components such as a PCBA mounted on the base 100 so as not to interfere with electronic equipment outside the optical module.
In order to fit with the encapsulated tab assembly 300, a first groove 150, a second groove 151 and a locking plate guide groove 152 are further provided at the side of the base 100, wherein the locking plate guide groove 152 is used for guiding the tab assembly 300 to move longitudinally.
Two ends of the base 100 are further provided with two upper cover clamping positions 170 and two second screw holes 121, which are used for assembling and fixing the upper cover 200, and the base 100 and the upper cover 200 can be tightly matched on four top corners, so that the whole stability and reliability of the optical module tube shell are ensured.
The base 100 is further provided with a label slot 160, and the label slot 160 is used for filling information such as an optical module code.
Fig. 4 shows one of the angular configurations of the upper cover of fig. 1, and fig. 5 shows the other angular configuration of the upper cover of fig. 1. As shown in fig. 4-5, the upper cover 200 is provided with two third screw holes 210, and the two third screw holes 210 correspond to the two second screw holes 121 on the base 100, respectively, and can be locked by two upper cover screws 620, so as to fix the cartridge at the end of the LC interface 110. The upper cover 200 is further provided with two base locking positions 240, and the two base locking positions 240 can be respectively locked with the two upper cover locking positions 170, so that the other end of the tube shell is fixed. In actual assembly, the base clip 240 and the cover clip 170 can be engaged, and then the screw 620 can be tightened.
In order to achieve a better isolation effect on crosstalk of electrical signals between the optical transmitter module and the optical receiver module, a longitudinal guide slot 220 is further disposed in the middle of the upper cover 200, and the longitudinal guide slot 220 can be aligned and embedded with the longitudinal ridge 140 on the base 100, so as to achieve a sealed electrical isolation barrier. In addition, a transverse third ridge 221 and a transverse fourth ridge 222 are also provided on the upper cover 200, which are used to shield electrical signals of components such as the PCBA from interfering with electronic devices outside the optical module, as in the function and implementation of the transverse first ridge 141 and the transverse second ridge 142 on the base 100.
Because the locking piece 320 is located between the base 100 and the upper cover 200, the open grooves are formed on both the base 100 and the upper cover 200, and the grooves with complete four sides are formed by matching, so that various protrusions of the locking piece 320 can be limited. Therefore, a third groove 230 and a fourth groove 231 are formed on the upper cover 200, wherein the third groove 230 and the second groove 151 are aligned and closely attached to form a groove, and the fourth groove 231 and the first groove 150 are also aligned and closely attached to form a groove.
In order to clearly indicate the optical path propagation direction of the LC interface 110, an optical path direction arrow 250 indicating the optical path propagation direction is provided on the upper cover 200.
Figure 6 shows one of the angled configurations of the encapsulated tab assembly of figure 1 and figure 6 shows another angled configuration of the encapsulated tab assembly of figure 1. As shown in fig. 6-7, the encapsulated tab assembly 300 is mainly provided with a plastic handle 310 for pulling the whole assembly, and a rib-shaped step 311 is further provided on the inner side of the plastic handle 310 in order to ensure the comfort of human hand during pulling.
The two lock heads 321 are respectively located at the top ends of the two sides of the locking plate 320 and protrude to the outside of the optical module, and can be embedded and stopped with a positioning pin of the installation cage where the optical module is located. And pulling the plastic handle 310, the locking head 321 will disengage from the positioning pin, thereby unlocking the optical module (since the positioning pin is in the installation cage where the optical module is located, and does not belong to a component of the optical module, a specific illustration is not given in this embodiment).
In order to ensure the stability of the locking plate 320 during pulling and the reliability of multiple pulling for a long time, two first limiting protrusions 322 are further disposed between the locking head 321 and the plastic handle 310, wherein the locking head 321 and the two first limiting protrusions 322 are both embedded in the groove formed by the second groove 151 and the third groove 230, and the first limiting protrusions 322 are limited by the side edges of the second groove 151 and the third groove 230 and can slide within a certain distance. And a second restriction protrusion 323 and a restriction leading edge 324 are formed on the locking piece 320, wherein the second restriction protrusion 323 is restricted by the side surface of the fourth recess 231, and the restriction leading edge 324 contacts with the locking piece guiding groove 152 for restriction. It can be seen that the above limits the position and sliding area of the locking tab 320 from four points of position.
In addition, a hook 330 is provided on the locking piece 320, and the hook 330 has a spring 630 and is fitted into the first groove 150. When the light module is inserted into the cage and not unlocked, the spring 630 is in a slightly compressed state; when the plastic handle 310 is pulled outward, the spring 630 is further compressed, which can be described as a severely compressed state, and the locking head 321 is disengaged from the cage; after the optical module is pulled out, the spring 630 can stretch under the tension of the self-recovery deformation and recover to a slightly compressed state when the optical module is not unlocked, so that the optical module is unlocked and the locking plate 320 is recovered.
Fig. 8 shows an exploded structure of an optical module to which the optical module case shown in fig. 1 is applied. As shown in fig. 8, the optical module is formed by assembling components such as the PCBA400, the light emitting component 510 and the light receiving component 520 into the base 100, wherein after the components are assembled into the base 100, the components can be fixed by using the bezel screws 610 and the bezel beads 611, the encapsulated tab component 300 and the springs 630 are assembled at the positions matched with the first grooves 150 and the second grooves 151, the upper cover clip 170 and the base clip 240 are engaged, and the upper cover 200 is assembled and fixed by using the upper cover screws 620, thereby completing the whole assembly process of the optical module.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. An optical module package, characterized in that: the rubber-covered pull ring assembly comprises a base (100), an upper cover (200) and a rubber-covered pull ring assembly (300), wherein the base (100) is clamped with the upper cover (200), an LC interface (110) is arranged on the base (100), an optical assembly clamping groove (130) is formed in the inner side of the LC interface (110), the rubber-covered pull ring assembly (300) comprises a plastic handle (310) and a U-shaped locking plate (320) which are connected, and the locking plate (320) is arranged between the base (100) and the upper cover (200);
a first groove (150), a second groove (151) and a locking plate guide groove (152) are formed in the side edge of the base (100), a third groove (230) and a fourth groove (231) are formed in the upper cover (200), wherein the third groove (230) is tightly attached to the second groove (151), and the fourth groove (231) is tightly attached to the first groove (150) in an aligning manner;
the lock head (321) is arranged at the top ends of two sides of the lock sheet (320), two first limiting protrusions (322) are further arranged between the lock head (321) and the plastic handle (310), the lock head (321) and the first limiting protrusions (322) are embedded in the groove formed by the second groove (151) and the third groove (230), and the first limiting protrusions (322) are limited by the side edges of the second groove (151) and the third groove (230);
the locking plate (320) is provided with a second limiting protrusion (323) and a limiting guide edge (324), the second limiting protrusion (323) is limited by the side face of the fourth groove (231), and meanwhile the limiting guide edge (324) is in contact with the locking plate guide groove (152) for limiting;
the locking plate (320) is provided with a clamping hook (330), the clamping hook (330) is provided with a spring (630) and assembled inside the first groove (150), and the second limiting protrusion (323) is arranged at the tail end of the clamping hook (330).
2. A light module package as claimed in claim 1, characterized in that: the middle part of base (100) is provided with vertical back (140), the extending direction of vertical back (140) is unanimous with the longitudinal direction of base (100) still be provided with vertical guide slot (220) in the middle part of upper cover (200), vertical guide slot (220) and vertical back (140) counterpoint gomphosis.
3. A light module package as claimed in claim 1, characterized in that: the position of base (100) far away from LC interface (110) still is provided with horizontal first back (141) and horizontal second back (142), be provided with horizontal third back (221) and horizontal fourth back (222) on upper cover (200).
4. A light module package as claimed in claim 1, characterized in that: the both ends of base (100) have two second screw (121) and two upper cover screens (170) respectively, be provided with two third screw (210) and two base screens (240) on upper cover (200), wherein, two second screw (121) and two third screw (210) are fixed through two upper cover screws (620) respectively, two upper cover screens (170) and two base screens (240) are the looks block respectively.
5. A light module to which a light module package according to any one of claims 1 to 4 is applied, characterized in that: a PCBA (400), a light emitting component (510), and a light receiving component (520) are mounted on the base (100), wherein the light emitting component (510) and the light receiving component (520) are both mounted in the light component slot (130).
6. A light module according to claim 5, characterized in that: the light emitting component (510) and the light receiving component (520) are fixed through three light port screws (610) and light port pressing strips (611), wherein three first screw holes (120) are formed in the base (100) side by side, and each light port screw (610) is installed in each first screw hole (120) respectively.
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CN202110275190.8A CN113138447B (en) | 2021-03-15 | 2021-03-15 | Optical module tube shell and optical module using same |
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CN202110275190.8A CN113138447B (en) | 2021-03-15 | 2021-03-15 | Optical module tube shell and optical module using same |
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CN113138447B true CN113138447B (en) | 2022-07-19 |
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CN114675381A (en) * | 2022-03-17 | 2022-06-28 | 武汉华工正源光子技术有限公司 | Base assembly, shell and optical module |
Citations (4)
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CN109521533A (en) * | 2017-09-19 | 2019-03-26 | 苏州旭创科技有限公司 | Optical module |
CN109683259A (en) * | 2019-01-10 | 2019-04-26 | 武汉电信器件有限公司 | A kind of optical module unlocking structure that can be plugged with fibre |
CN110133809A (en) * | 2019-05-24 | 2019-08-16 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
CN112363280A (en) * | 2020-11-10 | 2021-02-12 | 武汉华工正源光子技术有限公司 | Optical port electromagnetic shielding device and optical module |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109143500A (en) * | 2018-09-30 | 2019-01-04 | 武汉联特科技有限公司 | A kind of optical transceiver module |
CN112114405A (en) * | 2020-09-04 | 2020-12-22 | 武汉联特科技有限公司 | Light receiving and transmitting integrated module shell structure |
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2021
- 2021-03-15 CN CN202110275190.8A patent/CN113138447B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109521533A (en) * | 2017-09-19 | 2019-03-26 | 苏州旭创科技有限公司 | Optical module |
CN109683259A (en) * | 2019-01-10 | 2019-04-26 | 武汉电信器件有限公司 | A kind of optical module unlocking structure that can be plugged with fibre |
CN110133809A (en) * | 2019-05-24 | 2019-08-16 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
CN112363280A (en) * | 2020-11-10 | 2021-02-12 | 武汉华工正源光子技术有限公司 | Optical port electromagnetic shielding device and optical module |
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