CN106873097B - A kind of optical module - Google Patents
A kind of optical module Download PDFInfo
- Publication number
- CN106873097B CN106873097B CN201710197233.9A CN201710197233A CN106873097B CN 106873097 B CN106873097 B CN 106873097B CN 201710197233 A CN201710197233 A CN 201710197233A CN 106873097 B CN106873097 B CN 106873097B
- Authority
- CN
- China
- Prior art keywords
- vertical bar
- lower case
- upper housing
- optical module
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- G02B6/4275—Protection against electrostatic discharge [ESD]
-
- 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]
Abstract
This application discloses two kinds of optical modules, are related to optical-fibre communications field.A kind of optical module includes that upper housing, lower case and elastic vertical bar, elastic vertical bar are distributed on the side outer wall of the upper housing and/or in the side inner walls of the lower case；Another optical module includes upper housing, lower case, metal ribs body and elastic electric conductor, and metal ribs body is interspersed on upper housing and the side wall of lower case, and elastic electric conductor interference is filled between the side wall of upper-lower casing.This optical module will form gap separation and be independent sub- gap using the combination of elastic vertical bar or metal ribs body and elastic electric conductor between upper housing and lower casing body sidewall.Sub- gap is sufficiently small, and the electromagnetic wave that circuit board generates is difficult to propagate to hull outside across the sub- gap, thus by being constituted electromagnetic armouring structure by upper housing, lower case and being shielded.When using this optical module, apparent electromagnetic leakage will not be generated, the Electro Magnetic Compatibility of optical module is significantly improved.
Description
Technical field
This application involves optical-fibre communications field more particularly to a kind of optical modules.
Background technique
The integrated module of optical transceiver, abbreviation optical mode block main body or optic module are to realize that photoelectricity turns in optical fiber telecommunications system
It changes or the important devices of electro-optic conversion.Signal sending end in fiber optic communication systems, the telecommunications that optical mode block main body will receive
It number is converted into optical signal, after optical signal is transmitted by fiber medium, then is restored by the optical mode block main body of corresponding signal receiving end
At electric signal, high-speed transfer of the information in fiber medium is realized.Optical mode block main body is during photoelectric conversion or electro-optic conversion
Electromagnetic signal can be generated, which can constitute different degrees of electricity to other equipment in optical fiber telecommunications system (such as repeater)
Magnetic disturbance influences rate and accuracy rate that other equipment are transmitted signal or handled.Meanwhile other in optical fiber telecommunications system
The electromagnetic signal that equipment generates is also by the inevitable photoelectricity/electro-optic conversion performance for influencing optical mode block main body.Therefore, optical module
Main body usually requires to be equipped with electromagnetic screen, to improve the Electro Magnetic Compatibility of optical mode block main body itself, i.e. optical mode block main body
It can be worked normally in electromagnetic environment and the other equipment in the environment are not generated with the electromagnetic interference that cannot be born.
Fig. 1 is a kind of structural schematic diagram of optical module.As shown in Figure 1, the optical module includes upper housing 1, lower case 2 and electricity
Road plate 3.For the ease of the assembling and maintenance of circuit board 3, it is detachable that upper housing 1 and lower case 2 are usually threadedly coupled, are clamped etc.
Connection type assembled, constitute a relatively closed cavity space.Circuit board 3 is placed in upper housing 1 and 2 groups of lower case
At inside cavity can reduce its in circuit board 3 and optical fiber telecommunications system to a certain extent in such a way that casing shields
Electromagnetic interference between his equipment.But the upper housing 1 and lower case 2 removably connected be usually point-connection or
Point-face connection inevitably generates gap in the junction of upper housing 1 and lower case 2, and the electromagnetic wave that circuit board 3 generates is logical
Slot leakage is crossed to outside, reduces the Electro Magnetic Compatibility of optical module.
Apply for content
This application provides a kind of optical modules, and the Electro Magnetic Compatibility to solve the problems, such as optical module is poor.
The application provides a kind of optical module, and the optical module includes that upper housing, lower case, circuit board and multiple elasticity are perpendicular
Muscle, the upper housing, the lower case and the elastic vertical bar are electric conductor；The upper housing and the lower case include
One bottom surface and two sides perpendicular to the bottom surface, described two sides are distributed in the width direction of the bottom surface, and
It is parallel to each other；The distance between described two side outer walls of upper housing be less than two side outer walls of the lower case between away from
From；Two sides of the upper housing are inserted between two sides of the lower case, and the circuit board is set to the upper casing
The inside cavity that body and the lower case are formed；The multiple elasticity vertical bar is distributed in described along the length direction of the optical module
On the side outer wall of upper housing and/or in the side inner walls of the lower case.
Present invention also provides another optical module, the optical module includes upper housing, lower case, circuit board, metal ribs
Body and elastic electric conductor, the upper housing and the lower case are electric conductor；The upper housing and the lower case include
One bottom surface and two sides perpendicular to the bottom surface, described two sides are distributed in the width direction of the bottom surface, and
It is parallel to each other；The distance between described two side outer walls of upper housing be less than two side outer walls of the lower case between away from
From；Two sides of the upper housing are inserted between two sides of the lower case, and the circuit board is set to the upper casing
The inside cavity that body and the lower case are formed；The metal ribs body includes first be set on the upper casing body side surface outer wall
Metal vertical bar and the second metal vertical bar being set in the lower case side inner walls；The first metal vertical bar and described second
Metal vertical bar is interspersed along the length direction of the optical module；The first metal vertical bar and the second metal vertical bar are to right
Shell size outstanding is answered to be respectively less than the distance between the upper casing body side surface and the lower casing body side surface；The elastic electric conductor
Interference is filled between the first metal vertical bar and the lower casing body sidewall and the second metal vertical bar and the upper casing
Between body sidewall.
Optical module provided by the present application has the advantage that
This optical module utilizes the combination of elastic vertical bar or metal ribs body and elastic electric conductor, by upper housing and lower case
Gap separation is formed between side wall is independent sub- gap.Sub- gap is sufficiently small, and the electromagnetic wave that circuit board generates is difficult across this
Sub- gap propagates to hull outside, thus by being constituted electromagnetic armouring structure by upper housing, lower case and being shielded.Using this optical module
When, apparent electromagnetic leakage will not be generated, the Electro Magnetic Compatibility of optical module is significantly improved.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of common optical module；
Fig. 2 is a kind of overall structure diagram for optical module that the embodiment of the present application one provides；
Fig. 3 is a kind of fractionation schematic diagram for optical module that the embodiment of the present application one provides；
Fig. 4 is a kind of schematic cross-section for optical module shell that the embodiment of the present application one provides；
Fig. 5 is the distribution figure that can not form the elastic vertical bar in sub- gap；
Fig. 6 is a kind of state change schematic diagram of elastic vertical bar that the embodiment of the present application one provides before and after shell assembly；
Fig. 7 is a kind of schematic diagram for gap filling state that the embodiment of the present application one provides；
Fig. 8 is a kind of fractionation schematic diagram for optical module that the embodiment of the present application two provides；
Fig. 9 is a kind of occupied state schematic diagram in gap that the embodiment of the present application two provides；
Figure 10 is a kind of occupied state schematic diagram in gap that the embodiment of the present application three provides；
Figure 11 is a kind of distribution figure for metal vertical bar that the embodiment of the present application four provides；
Symbol indicates:
1- upper housing, 11- upper casing body side surface, 12- upper housing bottom surface, 2- lower case, 21- lower casing body side surface, 22- lower case
Bottom surface, 3- circuit board, 4- elasticity vertical bar, 5- conductive adhesive layer, 6- metal ribs body, 7- elastic electric conductor, the first metal of 61- vertical bar,
The second metal of 62- vertical bar, 63-T type muscle body.
Specific embodiment
Electromagnetic shielding is usually passed with conductor isolation to control electromagnetic wave from a region to the induction in another region and radiation
It broadcasts.Closed conductor can form conductive path, and conductive path has guiding function to electromagnetic energy flow, and guidance mode may include table
Face reflection, absorbed inside (conductor material internal generates the electric current and magnetic polarization opposite with source electromagnetic field) and internal reflection.?
During the above reflection and absorption, the energy of electromagnetic wave, which will receive, to be substantially lost, to weaken the radiation effect of source electromagnetic field.
But gap is inevitably generated between the shell removably connected, gap can destroy the continuity of conductive path,
Reduce the shielding properties of shielding construction.
Currently, improving optical module Electro Magnetic Compatibility, commonly a kind of mode is the cavity formed in upper housing and lower case
Interior filling absorbing material.Absorbing material efficient absorption can be incident upon the electromagnetic wave on its surface in wider frequency range, lead to
The mode for crossing the filling of portion in the cavity absorbing material, can effectively improve the Electro Magnetic Compatibility of optical module, but absorbing material
Price is higher, causes the optical mode block cost for applying absorbing material excessively high.
Under normal conditions, when the gap between shell is sufficiently small, electromagnetic wave can not then pass through this gap and propagate to shell
It is external.The application is connected shell with the combination of elastic electric conductor according to this principle and using elastic vertical bar or metal ribs body
The gap that place generates is divided into multiple subtle sub- gaps, and subtle sub- gap can be by electromagnetism wave resistance that optical mode block main body generates
Gear is in the inside cavity surrounded by shell.This optical module does not need that electricity can be greatly decreased using expensive absorbing material
Magnetic leakage, improves the Electro Magnetic Compatibility of optical module.
Referring to fig. 2 with 3, it is shown be respectively a kind of overall structure diagram for optical module that the embodiment of the present application one provides and
A kind of fractionation schematic diagram for optical module that the embodiment of the present application one provides.As shown in Figures 2 and 3, optical module packet provided by the present application
Including the optical module includes upper housing 1, lower case 2, circuit board 3 and multiple elastic vertical bars 4；The upper housing 1 includes one
Bottom surface 12 and two sides 11 perpendicular to the bottom surface 12, described two sides 11 are distributed in the width direction of the bottom surface 12
On, and be parallel to each other；The lower case 2 include a bottom surface 22 and two sides 21 perpendicular to the bottom surface 22, described two
A side 21 is distributed in the width direction of the bottom surface 22, and is parallel to each other.Between two 11 outer walls of side of the upper housing
Distance be less than the distance between two 21 outer walls of side of the lower case；Two sides 11 of the upper housing 1 are inserted into described
Between two sides 21 of lower case 2, in the cavity that the circuit board 3 is set to the upper housing 1 and the lower case 2 is formed
Portion.The upper housing 1 and lower case 2 of this optical module are two detachable independent cases.When upper housing 1 is inserted into lower case 2,
The side wall 11 of upper housing 1 is closely entrenched togather with the side wall 21 of lower case 2, forms between a side wall that there are fine gaps
Relatively closed cavity.
In the inside cavity that upper housing 1 and lower case 2 are formed, circuit board 3 can be set, also can be set can be realized light
The combination of the optical device or circuit board 3 and optical device of electricity conversion or electro-optic conversion.Realizing photoelectric conversion or electro-optic conversion
In the process, optical device and circuit board etc. can generate electromagnetic signal.Electromagnetic wave is from the slot leakage between side wall to outer in order to prevent
Portion, this optical module are equipped with elastic vertical bar 4.Multiple elasticity vertical bars 4 are distributed in the side of upper housing 1 along the length direction of the optical module
It is distributed on the outer wall of face or along the length direction of the optical module in the side inner walls of lower case 2 or along the optical module
Length direction be distributed in the side outer wall of upper housing 1 and the side inner walls of lower case 2.In the present embodiment, elastic vertical bar 4
It can be the flexible elongated muscle bodies such as phosphor bronze, beryllium-bronze, manganese steel or stainless steel.
Referring to fig. 4, a kind of schematic cross-section of optical module shell of the offer of the embodiment of the present application one is provided.It can by Fig. 4
See, the gap between upper-lower casing side wall can be divided into multiple independent sub- gaps by elastic vertical bar 4, and electromagnetic wave is difficult across bullet
Property the tiny sub- gap that is separated to form of vertical bar 4 propagate to hull outside, thus by by upper housing 1, lower case 2 and elastic vertical bar 4
Electromagnetic armouring structure is collectively formed to be shielded.When using this optical module, apparent electromagnetic leakage, the electromagnetism of optical module will not be generated
Compatible performance is significantly improved.
In the present embodiment, upper housing 1, lower case 2 and elastic vertical bar 4 are electric conductor, and three collectively forms circuit board 3
Electromagnetic armouring structure.Wherein, upper housing 1 and lower case 2 play a major role in electromagnetic shielding, and conductance with higher may be selected
Case material of the conductor of rate and magnetic conductivity as upper housing 1 and lower case 2, for example, the metal materials such as silver, copper, aluminium and its conjunction
Gold.High conductivity material can generate biggish reverse induction electric current under the action of electromagnetic wave, to consume more electromagnetism
Wave energy obtains better effectiveness.
Upper housing 1 and lower case 2 not only have electromagnetic isolation effect to circuit board 3, should also have the function of being environmentally isolated.
The application environment of many optical modules is more severe, such as certain optical modules applied in communication base station, is chronically at high temperature, height
In wet environment, the chemical substance in atmosphere easily corrodes, damages the shell mechanism of optical module, influences its internal module main body 1
Working condition.As a result, in the present embodiment, upper housing 1 and lower case 2 be may be selected in tin alloy, nickel alloy or tin-nickel alloy
It is a kind of.Wherein, tin alloy is basic element, the alloy of other metallic elements composition such as addition lead, zinc, copper, tin conjunction with tin element
Gold heating conduction with higher and atmospheric corrosion resistance；Nickel alloy be with nickel be basic element, addition chromium, aluminium, zirconium etc. its
The alloy of his element composition, nickel have good inoxidizability, corrosion resistance and elevated temperature strength；Tin-nickel alloy be even more combine with
The excellent performance of upper tin alloy and tin alloy provides preferable protection for the module bodies 1 inside upper housing 1 and lower case 2.
When elastic vertical bar 4 be interspersed in upper housing 1 side outer wall and lower case 2 side inner walls when, in gap
The elastic vertical bar 4 of adjacent two should have intersection on the length direction of optical module, avoid adjacent two bullet as shown in Figure 5
Property vertical bar 4 generates gap in vertical direction and can not form independent sub- gap.In the present embodiment, above each elastic vertical bar
4 at least one endpoint endpoint corresponding with elastic vertical bar 4 adjacent in gap is in same horizontal line.Arrangement above side
Formula can not only form independent sub- gap, additionally it is possible to so that the depth (i.e. the length of vertical direction) in sub- gap is able to relatively
It maximizes.The sub- gap depth that the elastic vertical bar 4 of adjacent two is formed is deeper, and electromagnetic wave is less susceptible to occur across sub- gap
Electromagnetic leakage.
Since electromagnetic shielding effect is influenced by gap depth, the depth in gap is deeper, and the degree of electromagnetic wave attenuation is got over
Greatly.According to principles above, bigger gap depth is obtained to a certain extent in order to obtain, the elastic vertical bar 4 in the present embodiment
It is obliquely installed on the length direction of the optical module, and the tilt angle of each elastic vertical bar is identical
Under normal conditions, the opening size in gap is less than the 1/2 of electromagnetic wavelength, and certain screen can be generated to electromagnetic wave
Effect is covered, the size in gap is smaller, better to electromagnetic wave volume shield effectiveness.It is contemplated that the difficult processing of each component of optical module
Assembly difficulty between degree and each component, in the present embodiment, the distance between adjacent two elastic vertical bars 4 are small in gap
In the 1/20 of the electromagnetic wavelength that circuit board 3 generates.The electromagnetic wavelength that optical module generates usually in 20mm-30mm, because
This, in the present embodiment, the distance between described elastic vertical bar 4 of adjacent two should be in 1.5mm or less.
Referring to Fig. 6, a kind of state of the elastic vertical bar of the offer of the embodiment of the present application one before and after shell assembly is provided and is become
Change schematic diagram.Left part is reset condition of the elastic vertical bar 4 on upper housing 1 in Fig. 6；Right part is that elastic vertical bar 4 is filled out
Fill the deformed state after gap.By the comparison of the two as it can be seen that elastic vertical bar 4 is in reset condition, thickness is greater than gap
Width (shown in dotted line), since elastic vertical bar 4 has certain deformability, after upper housing is inserted into the lower case
The elastic deformation of compression occurs.Elastic vertical bar 4 state that interference is filled in gap, so that elastic vertical bar 4 and two housings (on
Shell 1 and lower case 2) side wall between there is surface-to-surface connection, to be formed between adjacent two elastic vertical bars 4 independent
Sub- gap.
Referring to Fig. 7, it show a kind of schematic diagram of gap filling state of the offer of the embodiment of the present application one.As seen from Figure 7,
Optical module in the present embodiment further includes conductive adhesive layer 5, and the conductive adhesive layer 5 is set to the elastic vertical bar 4 and the upper casing
Between body 1.In the application other embodiments, conductive adhesive layer 5 also be can be set in elastic vertical bar 4 and upper housing 1 and lower case 2
Between the side wall of at least one shell.The main component of conductive adhesive layer 5 is conducting resinl, contains conductive ion and gluing in conducting resinl
Agent, wherein elastic vertical bar 4 can be fixed on the side wall of upper housing 1 by adhesive, and be connected as an entirety knot with upper housing 1
Structure, when upper housing 1 and lower case 2 being avoided to assemble, the position of elastic vertical bar 4 is deviated due to extruding, influences sub- gap
Size and shield effectiveness；Conductive ion in conducting resinl can then form continuous conductive logical with elastic vertical bar 4 and upper housing 1
Road.
The present embodiment uses conductive glue bond elasticity vertical bar 4 and upper housing 1, compared with other combinations, glue bonding
Mode operate relatively simple, process costs are lower.In addition, during upper housing 1 and lower case 2 assemble, elastic vertical bar 4
Elastic deformation occurs, conductive adhesive layer 5 will enter in sub- gap in the case where the extruding force of adjacent two elastic vertical bars 4 acts on, thus
The size in sub- gap is reduced, the shielding properties of screening arrangement 2 can be enhanced to a certain extent.
Although electromagnetic exposure can be greatly decreased in the screening arrangement being composed with above embodiment, optical module is improved
Electro Magnetic Compatibility.But since elastic vertical bar 4 is different from the material of upper housing 1, lower case 2, so that elastic vertical bar 4 is difficult
It is combined in a manner of integrally formed with upper housing 1 or lower case 2, increases the assembly difficulty of elastic vertical bar 4.Adjacent two
The distance between elastic vertical bar 4 is smaller, and the dimensional accuracy in sub- gap is easily reduced by the assembly methods such as artificial, meanwhile, shadow
Ring the production efficiency of optical module.For this purpose, the application following embodiment provides a kind of optical module convenient for assembling.
Referring to Fig. 8 and Fig. 9, shown is respectively a kind of fractionation schematic diagram for optical module that the embodiment of the present application two provides and this
Apply for a kind of occupied state schematic diagram in gap that embodiment two provides.By Fig. 8 and Fig. 9 as it can be seen that the present embodiment in addition to implementation
Other than the identical upper-lower casing structure of example 1 and combination relationship, optical module further includes metal ribs body 6 and elastic electric conductor
7。
Metal ribs body 6 includes the first metal vertical bar 61 being set on the 1 side outer wall of upper housing and is set to lower casing
The second metal vertical bar 62 in 2 side inner walls of body；First metal vertical bar 61 and the second metal vertical bar 62 are along the length side of optical module
To being interspersed；First metal vertical bar 61 and the second metal vertical bar 62 are respectively less than 1 side of upper housing to corresponding housing size outstanding
The distance between 2 side of face and lower case；So that elastic electric conductor 7 can be filled between upper-lower casing with interference.With embodiment
One is similar, at least one endpoint of the first metal vertical bar 61 endpoint corresponding with the second metal vertical bar 62 is in same horizontal line
On, the distance between the first adjacent metal vertical bar 61 and the second metal vertical bar 62 are produced less than circuit board between upper-lower casing side wall
The 1/20 of raw electromagnetic wavelength.
Metal ribs body 6 and the setting of vertical bar 4 elastic in embodiment two in the present embodiment is similar with distribution mode, with this side
Formula setting with it is also roughly the same the advantages of distribution mode, which is not described herein again.The major function of metal ribs body 6 in the present embodiment
It is to play positioning action for the formation in sub- gap, i.e. the distribution of metal ribs body 6 can directly affect the size in sub- gap.But gold
Belong to muscle body 6 itself and do not have elastic, is still point-point contact between metal ribs body 6 and side wall or point-to-area contacts.Thus,
Need to be arranged elastic electric conductor 7 between metal ribs body 6 and side wall, when squeezing elastic deformation, interference occur for elastic electric conductor 7
Be filled between 1 side wall of the first metal vertical bar 61 and the upper housing and the second metal vertical bar 62 and it is described under
Between 2 side wall of shell.Metal ribs body 6 and elastic electric conductor 7 cooperate, and can separate gap is formed between two housings side wall
For multiple independent sub- gaps.
Since metal ribs body 6 can be identical as the material of upper housing 1 and lower case 2.Thus, the first metal is perpendicular in the present embodiment
Muscle 61 and the upper housing 1, the second metal vertical bar 62 are an integral molding structure with the lower case 2.
In the present embodiment, the elastic electric conductor 7 is stainless steel sheet metal component, and stainless steel sheet metal component is inserted into 1 side wall of upper housing
Between 2 side wall of lower case.Stainless steel sheet metal component is the stainless sheet steel being process by sheet metal process.Sheet metal process is a kind of
Comprehensive cold machining process can get sheet metal ultra-thin and in homogeneous thickness after sheet metal process is processed.In addition, the present embodiment
Raw material of the middle stainless steel relatively low using chromium content as panel beating, such stainless steel elasticity is relatively preferable,
It is contradicted on the side wall of upper-lower casing after larger deformation can occur, forms surface-to-surface contact.In addition, the conductive glue that compares, sealing
Rubber etc. other can be used for blocking the elastic electric conductor of hole for, the cost of stainless steel sheet metal component is lower, is advantageously implemented
The large-scale production of optical module.
When assembling optical module, first by the cavity of stainless steel sheet metal component insertion lower case 2, then upper housing 1 is embedded in stainless
In steel sheet metal component, the distribution sequence of three's ecto-entad is lower case 2- stainless steel sheet metal component-upper housing 1.Due to the first metal
Vertical bar 61 and the second metal vertical bar 62 are interspersed, during upper housing 1 and mutually chimeric lower case 2, in the two
Between extruding force of the stainless steel sheet metal component by 62 both direction of the first metal vertical bar 61 and the second metal vertical bar, elastic shape occurs
Interference is filled between 2 side wall of the first metal vertical bar 61 and the lower case and the second metal vertical bar 62 after change
Between 1 side wall of upper housing.Meanwhile a part of stainless steel sheet metal component enters the first metal vertical bar 61 and the second metal is perpendicular
In sub- gap between muscle 62, the horizontal length in sub- gap can be reduced to a certain extent, and then enhance the screen of screening arrangement 2
Cover performance.
For the quantity for reducing sub- gap to the greatest extent, a possibility that electromagnetic wave is by sub- slot leakage, other realities of the application are reduced
It applies in example, the combination of metal ribs body 6 or an appropriate number of transverse bar and vertical bar.
Figure 10 is a kind of occupied state schematic diagram in gap that the embodiment of the present application three provides.As seen from Figure 10, this implementation
The metal ribs body 6 that 1 side wall of upper housing is distributed in example is T-type muscle body 63, and T-type muscle body 63 is by one section of transverse bar and one section of vertical bar group
At integrated formed structure.Wherein, the width (i.e. the length of vertical direction) of transverse bar can not be too small, and horizontal length can not mistake
Greatly, 1-2 sub- gaps of covering.The horizontal length of transverse bar is too long, then is easy to influence the deformation quantity of elastic electric conductor 7, cause
Gap is generated between transverse bar and the side wall of upper housing 1, electromagnetic leakage phenomenon occurs.
In addition, the second metal vertical bar 62 (dotted portion in Figure 10) should be able to make the second gold medal in the arrangement mode of lower case 2
Belong to the transverse bar part for being located closer to T-type muscle body 63 of vertical bar 62, so that the son that the second metal vertical bar 62 is formed with transverse bar part
Gap is sufficiently narrow, and the electromagnetic wave for avoiding module bodies 1 to generate to a certain extent passes through the sub- gap.
According to Theory of Electromagnetic Field, the gap with certain depth can regard waveguide as, and waveguide under certain condition can be right
The electromagnetic wave propagated inside it is decayed, and the depth in gap is deeper, and the degree of electromagnetic wave attenuation is bigger.According to the above original
Reason, obtains bigger gap depth to obtain, distribution of the following examples of the application to metal ribs body 6 to a certain extent
Mode is optimized.
Referring to Figure 11, it show a kind of distribution figure of metal vertical bar of the offer of the embodiment of the present application five.It can by Figure 11
See, in the present embodiment, be obliquely installed on the length direction of 62 optical module of the first metal vertical bar 61 and the second metal vertical bar, and tilts
Angle is identical.It should not be too large to control the size in sub- gap with factors, the tilt angles of metal ribs body 6 such as assembly.In order into
One step improves the depth in sub- gap, and 1 side wall of upper housing and lower case 2 (are not shown) height of side wall in Figure 11 identical, and
Height of the vertical range with upper housing 1 or lower case 2 between 62 two endpoints of one metal vertical bar 61 and the second metal vertical bar
It is equal.
In the present embodiment, being obliquely installed of metal ribs body 6, metal ribs body 6 are equal with the height of upper housing 1, lower case 2
It is a kind of mode for increasing sub- gap depth (length of the i.e. sub- gap in vertical direction).The application other embodiments can also adopt
Increase the depth in sub- gap with any one mode therein or other modes.
Same and similar part may refer to each other between each embodiment in this specification.Above-described the application is real
It applies mode and does not constitute restriction to the application protection scope.
Claims (8)
1. a kind of optical module, which is characterized in that the optical module includes that upper housing, lower case, circuit board and multiple elasticity are perpendicular
Muscle, the upper housing, the lower case and the elastic vertical bar are electric conductor；
The upper housing and the lower case include a bottom surface and two sides perpendicular to the bottom surface, described two sides
EDS maps are parallel to each other in the width direction of the bottom surface；
The distance between described two side outer walls of upper housing are less than the distance between described two side outer walls of lower case；
Two sides of the upper housing are inserted between two sides of the lower case, and the circuit board is set to the upper casing
The inside cavity that body and the lower case are formed；
It is the multiple elasticity vertical bar along the side outer wall that the length direction of the optical module is distributed in the upper housing, and/or
In the side inner walls of the lower case, wherein
Between the upper casing body side surface and the corresponding lower casing body side surface, the distance between described elastic vertical bar of adjacent two
Less than the 1/20 of the electromagnetic wavelength that the circuit board generates.
2. optical module as described in claim 1, which is characterized in that the optical module further includes conductive adhesive layer, the conducting resinl
Layer is set between the elastic vertical bar and the side of the upper housing and/or the side of the elastic vertical bar and the lower case
Between face.
3. optical module as claimed in claim 1 or 2, which is characterized in that the elasticity vertical bar is in the length side of the optical module
It is obliquely installed upwards, and the tilt angle of each elastic vertical bar is identical.
4. a kind of optical module, which is characterized in that the optical module includes upper housing, lower case, circuit board, metal ribs body and elasticity
Electric conductor, the upper housing and the lower case are electric conductor；
The upper housing and the lower case include a bottom surface and two sides perpendicular to the bottom surface, described two sides
EDS maps are parallel to each other in the width direction of the bottom surface；
The distance between described two side outer walls of upper housing are less than the distance between described two side outer walls of lower case；
Two sides of the upper housing are inserted between two sides of the lower case, and the circuit board is set to the upper casing
The inside cavity that body and the lower case are formed；
The metal ribs body includes the first metal vertical bar being set on the upper casing body side surface outer wall and is set to the lower casing
The second metal vertical bar on body side surface inner wall；
The first metal vertical bar and the second metal vertical bar are interspersed along the length direction of the optical module；
The first metal vertical bar and the second metal vertical bar are respectively less than the upper casing side to corresponding housing size outstanding
The distance between face and the lower casing body side surface；
The elastic electric conductor interference is filled between the first metal vertical bar and the lower casing body sidewall and described second
Between metal vertical bar and the upper casing body sidewall, wherein
The distance between adjacent the first metal vertical bar and the second metal vertical bar are less than the electricity that the circuit board generates
The 1/20 of magnetic wave wavelength.
5. optical module as claimed in claim 4, which is characterized in that the first metal vertical bar and the second metal vertical bar exist
It is obliquely installed on the length direction of the optical module, and the tilt angle of the first metal vertical bar and the second metal vertical bar
It is identical.
6. optical module as described in claim 4 or 5, which is characterized in that the first metal vertical bar and second metal are perpendicular
The equal length of muscle.
7. optical module as claimed in claim 6, which is characterized in that between the first metal vertical bar and the upper housing, with
And it is an integral molding structure between the second metal vertical bar and the lower case.
8. optical module as described in claim 1, which is characterized in that the upper housing and the lower case are that tin alloy, nickel close
One of gold or tin-nickel alloy.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197233.9A CN106873097B (en) | 2017-03-29 | 2017-03-29 | A kind of optical module |
| US15/912,276 US10711979B2 (en) | 2017-03-29 | 2018-03-05 | Optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197233.9A CN106873097B (en) | 2017-03-29 | 2017-03-29 | A kind of optical module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106873097A CN106873097A (en) | 2017-06-20 |
| CN106873097B true CN106873097B (en) | 2019-02-22 |
Family
ID=59159575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710197233.9A Active CN106873097B (en) | 2017-03-29 | 2017-03-29 | A kind of optical module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106873097B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100379A1 (en) * | 2017-11-27 | 2019-05-31 | 昂纳信息技术（深圳）有限公司 | Optical fiber plugging structure and system |
| CN112672628B (en) * | 2020-12-30 | 2023-03-10 | 西安开容电子技术有限责任公司 | Shielding device of rotating mechanism |
| CN114815083B (en) * | 2021-01-18 | 2024-02-23 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN113791475A (en) * | 2021-08-25 | 2021-12-14 | 武汉兴思为光电科技有限公司 | Optical module and communication device |
| CN114063230A (en) * | 2021-11-08 | 2022-02-18 | 长飞光纤光缆股份有限公司 | Optical module capable of reducing electromagnetic interference |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116788A (en) * | 1996-10-11 | 2000-09-12 | Siemens Aktiengesellschaft | Optical plug connector |
| CN103869426A (en) * | 2012-12-18 | 2014-06-18 | 深圳新飞通光电子技术有限公司 | Pluggable optical transceiver module |
| CN105723266A (en) * | 2015-06-16 | 2016-06-29 | 索尔思光电（成都）有限公司 | Electromagnetic interference shielding device for optical transceiver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7355857B2 (en) * | 2006-02-07 | 2008-04-08 | Methode Electronics, Inc. | Heat sink gasket |
-
2017
- 2017-03-29 CN CN201710197233.9A patent/CN106873097B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116788A (en) * | 1996-10-11 | 2000-09-12 | Siemens Aktiengesellschaft | Optical plug connector |
| CN103869426A (en) * | 2012-12-18 | 2014-06-18 | 深圳新飞通光电子技术有限公司 | Pluggable optical transceiver module |
| CN105723266A (en) * | 2015-06-16 | 2016-06-29 | 索尔思光电（成都）有限公司 | Electromagnetic interference shielding device for optical transceiver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106873097A (en) | 2017-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106873097B (en) | A kind of optical module | |
| CN203811851U (en) | Light transceiver module | |
| US9871325B2 (en) | Circuit board having selective vias filled with lossy plugs | |
| CN105403964B (en) | A kind of pluggable optical module | |
| US8714840B2 (en) | Optical module and cage | |
| CN206364484U (en) | Cable installation | |
| CN105187127B (en) | Optical transceiver | |
| CN101124697A (en) | High speed, high density electrical connector | |
| CN209281013U (en) | A kind of solution EMC and EMI electromagnetic compatibility optical module | |
| CN106025719A (en) | Electrical connector and interconnection system having resonance control | |
| CN109818208B (en) | Connector for high data rate | |
| CN109088272A (en) | Electric connector and electronic equipment | |
| CN204669368U (en) | A kind of integrated module of optical transceiver | |
| CN106461888A (en) | Optical transmitter-receiver | |
| CN106602224A (en) | Mobile terminal | |
| CN108061948A (en) | A kind of optical module | |
| CN102842758A (en) | Radome material and radome and antenna system adopting same | |
| CN206471610U (en) | Micro coaxial cable connector assembly | |
| CN208432760U (en) | Conducting bracket and optical module | |
| CN205157852U (en) | But plug optical module | |
| CN209313047U (en) | Electric connector | |
| CN206471646U (en) | Micro coaxial cable connector assembly | |
| JP4919833B2 (en) | Photoelectric conversion module | |
| US10711979B2 (en) | Optical module | |
| KR20120096432A (en) | Flexible flat cable for low voltage differential signaling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |