CN106873097A - A kind of optical module - Google Patents
A kind of optical module Download PDFInfo
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- CN106873097A CN106873097A CN201710197233.9A CN201710197233A CN106873097A CN 106873097 A CN106873097 A CN 106873097A CN 201710197233 A CN201710197233 A CN 201710197233A CN 106873097 A CN106873097 A CN 106873097A
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- optical module
- upper shell
- lower house
- metal
- muscle
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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
- G02B6/4274—Electrical aspects
- G02B6/4275—Protection against electrostatic discharge [ESD]
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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
- G02B6/4274—Electrical aspects
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
This application discloses two kinds of optical modules, it is related to optical-fibre communications field.A kind of optical module includes upper shell, lower house and the perpendicular muscle of elasticity, and the perpendicular muscle of elasticity is distributed on the side outer wall of the upper shell, and/or in the side inner walls of the lower house；Another optical module includes upper shell, lower house, metal ribs body and elastic electric conductor, and metal ribs body is interspersed on the side wall of upper shell and lower house, and elastic electric conductor interference is filled between the side wall of upper-lower casing.This optical module using the perpendicular muscle of elasticity, or metal ribs body and elastic electric conductor combination, be divided into independent sub- gap by gap is formed between upper shell and lower casing body sidewall.Sub- gap is sufficiently small, and the electromagnetic wave that circuit board is produced is difficult to propagate to hull outside through the sub- gap, so as to be constituted electromagnetic armouring structure and be shielded by upper shell, lower house.During using this optical module, the Electro Magnetic Compatibility of obvious electromagnetic leakage, optical module will not be produced to be significantly improved.
Description
Technical field
The application is related to optical-fibre communications field, more particularly to a kind of optical module.
Background technology
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
Change or electro-optic conversion important devices.Signal sending end in fiber optic communication systems, the telecommunications that optical mode block main body will be received
Optical signal number is converted into, optical signal is reduced after fiber medium is transmitted, then by the optical mode block main body of corresponding signal receiving end
Into electric signal, high-speed transfer of the information in fiber medium is realized.Optical mode block main body is during opto-electronic conversion or electro-optic conversion
Electromagnetic signal can be produced, the electromagnetic signal can constitute different degrees of electricity to other equipment in optical fiber telecommunications system (such as repeater)
Magnetic disturbance, speed and accuracy rate that influence other equipment is transmitted or processes to signal.Meanwhile, in optical fiber telecommunications system other
The electromagnetic signal that equipment is produced is also by the photoelectricity/electro-optic conversion performance of inevitably influence optical mode block main body.Therefore, optical module
Main body generally needs to be equipped with electromagnetic screen, to improve the optical mode block main body Electro Magnetic Compatibility of itself, i.e. optical mode block main body
Energy normal work and the electromagnetic interference that can not do not born to the other equipment generation in the environment in electromagnetic environment.
Fig. 1 is a kind of structural representation of optical module.As shown in figure 1, the optical module includes upper shell 1, lower house 2 and electricity
Road plate 3.For the ease of the assembling and maintenance of circuit board 3, upper shell 1 and lower house 2 are generally detachable with threaded connection, clamping etc.
Connected mode assembled, constitute a relatively closed cavity space.Circuit board 3 is positioned over 2 groups of upper shell 1 and lower house
Into inside cavity, by way of casing is shielded, can to a certain extent reduce in circuit board 3 and optical fiber telecommunications system it
Electromagnetic interference between his equipment.But, the upper shell 1 and lower house 2 for removably connecting be usually point-connection or
Point-face connection, gap is inevitably produced in the junction of upper shell 1 and lower house 2, and the electromagnetic wave that circuit board 3 is produced leads to
Slot leakage to outside is crossed, the Electro Magnetic Compatibility of optical module is reduced.
Application content
It is poor with the Electro Magnetic Compatibility for solving the problems, such as optical module this application provides a kind of optical module.
The application provides a kind of optical module, and the optical module includes that upper shell, lower house, circuit board and multiple elasticity are perpendicular
Muscle, the upper shell, the lower house and the perpendicular muscle of the elasticity are electric conductor；The upper shell and the lower house include
One bottom surface and two sides perpendicular to the bottom surface, described two sides are distributed on the width of the bottom surface, and
It is parallel to each other；The distance between two side outer walls of the upper shell less than between two side outer walls of the lower house away from
From；Two sides of the upper shell are inserted between two sides of the lower house, and the circuit board is arranged at the upper casing
The inside cavity that body and the lower house are formed；The multiple perpendicular muscle of elasticity is distributed in described along the length direction of the optical module
On the side outer wall of upper shell, and/or in the side inner walls of the lower house.
Present invention also provides another optical module, the optical module includes upper shell, lower house, circuit board, metal ribs
Body and elastic electric conductor, the upper shell and the lower house are electric conductor；The upper shell and the lower house include
One bottom surface and two sides perpendicular to the bottom surface, described two sides are distributed on the width of the bottom surface, and
It is parallel to each other；The distance between two side outer walls of the upper shell less than between two side outer walls of the lower house away from
From；Two sides of the upper shell are inserted between two sides of the lower house, and the circuit board is arranged at the upper casing
The inside cavity that body and the lower house are formed；The metal ribs body includes be arranged on the upper casing body side surface outer wall first
The perpendicular muscle of metal and the perpendicular muscle of the second metal being arranged in the lower house side inner walls；First metal erects muscle and described second
The perpendicular muscle of metal is interspersed along the length direction of the optical module；The perpendicular muscle of first metal and the perpendicular muscle of second metal are to right
The size for answering housing to protrude is 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 in first metal and erects between muscle and the lower casing body sidewall, and the perpendicular muscle of second metal and the upper casing
Between body sidewall.
The optical module that the application is provided has advantages below：
This optical module using the perpendicular muscle of elasticity, or metal ribs body and elastic electric conductor combination, by upper shell and lower house
Gap is formed between the wall of side and is divided into independent sub- gap.Sub- gap is sufficiently small, and the electromagnetic wave that circuit board is produced is difficult through this
Sub- gap propagates to hull outside, so as to be constituted electromagnetic armouring structure and be shielded by upper shell, lower house.Using this optical module
When, the Electro Magnetic Compatibility of obvious electromagnetic leakage, optical module will not be produced to be significantly improved.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the accompanying drawing to be used needed for embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of common optical module；
Fig. 2 is a kind of overall structure diagram of optical module that the embodiment of the present application one is provided；
Fig. 3 is a kind of fractionation schematic diagram of optical module that the embodiment of the present application one is provided；
Fig. 4 is a kind of schematic cross-section of optical module shell that the embodiment of the present application one is provided；
Fig. 5 is the distribution figure of the perpendicular muscle of elasticity that cannot form sub- gap；
Fig. 6 is that a kind of elasticity that the embodiment of the present application one is provided erects state change schematic diagram of the muscle before and after housing assembling；
Fig. 7 is a kind of schematic diagram of gap filling state that the embodiment of the present application one is provided；
Fig. 8 is a kind of fractionation schematic diagram of optical module that the embodiment of the present application two is provided；
Fig. 9 is a kind of occupied state schematic diagram in gap that the embodiment of the present application two is provided；
Figure 10 is a kind of occupied state schematic diagram in gap that the embodiment of the present application three is provided；
Figure 11 is a kind of distribution figure of the perpendicular muscle of metal that the embodiment of the present application four is provided；
Symbol is represented：
1- upper shells, 11- upper casings body side surface, 12- upper shells bottom surface, 2- lower houses, 21- lower casings body side surface, 22- lower houses
Bottom surface, 3- circuit boards, the perpendicular muscle of 4- elasticity, 5- conductive adhesive layers, 6- metal ribs body, 7- elastic electric conductors, the perpendicular muscle of the metals of 61- first,
The metals of 62- second erect muscle, 63-T type muscle bodies.
Specific embodiment
Electromagnetic shielding generally controls electromagnetic wave to be passed from a region to the sensing in another region and radiation with conductor isolation
Broadcast.Closed conductor can form conductive path, and conductive path has guiding function to electromagnetic energy flow, and its guidance mode may include table
Face reflection, absorbed inside (the conductor material internal generation electric current opposite with source electromagnetic field and magnetic polarization), and internal reflection.
During reflecting above and absorbing, the energy of electromagnetic wave can be significantly lost, so as to weaken the radiation effect of source electromagnetic field.
But, inevitably produce gap, gap to destroy the continuity of conductive path between the housing for removably connecting,
Reduce the shielding properties of shielding construction.
At present, it is the cavity constituted in upper shell and lower house to improve a kind of conventional mode of optical module Electro Magnetic Compatibility
Interior filling absorbing material.Absorbing material efficient absorption can be incident upon the electromagnetic wave on its surface in frequency band range wider, lead to
The mode that absorbing material is filled in inside cavity is crossed, the Electro Magnetic Compatibility of optical module can be effectively improved, but absorbing material
Price is higher, causes to apply the optical module high cost of absorbing material.
Under normal circumstances, when the gap between housing is sufficiently small, electromagnetic wave then cannot propagate to housing through this gap
It is outside.The application is connected housing according to this principle and using the perpendicular muscle of elasticity, or the combination of metal ribs body and elastic electric conductor
The gap for locating to produce is divided into multiple trickle sub- gaps, the electromagnetism wave resistance that trickle sub- gap can produce optical mode block main body
Gear is in the inside cavity surrounded by housing.This optical module need not use the high absorbing material of price, you can electricity is greatly decreased
Magnetic is revealed, and improves the Electro Magnetic Compatibility of optical module.
Referring to Fig. 2 and 3, the shown overall structure diagram for being respectively a kind of optical module that the embodiment of the present application one is provided and
A kind of fractionation schematic diagram of optical module that the embodiment of the present application one is provided.As shown in Figures 2 and 3, the optical module bag that the application is provided
Including the optical module includes upper shell 1, lower house 2, circuit board 3 and the perpendicular muscle 4 of multiple elasticity；The upper shell 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 of the bottom surface 12
On, and be parallel to each other；The lower house 2 includes a bottom surface 22 and two sides 21 perpendicular to the bottom surface 22, described two
Individual side 21 is distributed on the width of the bottom surface 22, and is parallel to each other.Between two outer walls of side 11 of the upper shell
Distance the distance between less than two outer walls of side 21 of the lower house；Insert described in two sides 11 of the upper shell 1
Between two sides 21 of lower house 2, the circuit board 3 is arranged in the cavity that the upper shell 1 and the lower house 2 are formed
Portion.The upper shell 1 and lower house 2 of this optical module are two detachable independent cases.When in the insertion lower house 2 of upper shell 1,
The side wall 11 of upper shell 1 is closely entrenched togather with the side wall 21 of lower house 2, and fine gap is left between one side wall of formation
Relatively closed cavity.
In the inside cavity that upper shell 1 and lower house 2 are formed, circuit board 3 can be set, it is also possible to which setting can realize light
Electricity conversion or electro-optic conversion optical device, or circuit board 3 and optical device combination.Realizing opto-electronic conversion or electro-optic conversion
During, optical device and circuit board etc. can produce electromagnetic signal.In order to prevent electromagnetic wave from the slot leakage between the wall of side to outer
Portion, this optical module is provided with the perpendicular muscle 4 of elasticity.Multiple perpendicular muscle 4 of elasticity are distributed in the side of upper shell 1 along the length direction of the optical module
It is distributed in the side inner walls of lower house 2 or along the optical module on the outer wall of face or along the length direction of the optical module
Length direction be distributed in the side inner walls of the side outer wall of upper shell 1 and lower house 2.In the present embodiment, the perpendicular muscle 4 of elasticity
It can be the resilient elongated muscle body of tool 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 shown.Can by Fig. 4
See, the gap between the wall of upper-lower casing side can be divided into multiple independent sub- gaps by the perpendicular muscle 4 of elasticity, and electromagnetic wave is difficult through bullet
Property the tiny sub- gap that is separated to form of perpendicular muscle 4 propagate to hull outside, so as to by by upper shell 1, lower house 2 and the perpendicular muscle 4 of elasticity
Electromagnetic armouring structure is collectively formed to be shielded.During using this optical module, obvious electromagnetic leakage, the electromagnetism of optical module will not be produced
Compatible performance is significantly improved.
In the present embodiment, upper shell 1, lower house 2 and the perpendicular muscle 4 of elasticity are electric conductor, and three collectively forms circuit board 3
Electromagnetic armouring structure.Wherein, upper shell 1 and lower house 2 play a major role in electromagnetic shielding, can be chosen with conductance higher
The conductor of rate and magnetic conductivity as upper shell 1 and the case material of lower house 2, such as, and the metal material such as silver, copper, aluminium and its conjunction
Gold.High conductivity material can produce larger reverse induction electric current in the presence of electromagnetic wave, so as to consume more electromagnetism
Wave energy, obtains more preferable effectiveness.
Upper shell 1 and lower house 2 are not only acted on circuit board 3 with electromagnetic isolation, should also have the effect being environmentally isolated.
The applied environment of many optical modules is more severe, and for example some are applied to the optical module in communication base station, are chronically at high temperature, height
In wet environment, the easy burn into of chemical substance in air damages the shell mechanism of optical module, influences its internal module main body 1
Working condition.Thus, in the present embodiment, upper shell 1 and lower house 2 may be selected in tin alloy, nickel alloy or tin-nickel alloy
It is a kind of.Wherein, the alloy of other metallic elements compositions such as tin alloy element based on tin element, addition lead, zinc, copper, tin is closed
Gold utensil has heat conductivility and atmospheric corrosion resistance higher；Nickel alloy is the element based on nickel, addition chromium, aluminium, zirconium etc. its
The alloy of his element composition, nickel has good inoxidizability, corrosion resistance and elevated temperature strength；Tin-nickel alloy be even more combine with
The premium properties of upper tin alloy and tin alloy, is that the module bodies 1 inside upper shell 1 and lower house 2 provide preferably protection.
When the perpendicular muscle 4 of elasticity be interspersed in upper shell 1 side outer wall and lower house 2 side inner walls when, in gap
The perpendicular muscle 4 of two adjacent elasticity should have intersection on the length direction of optical module, it is to avoid adjacent two bullet as shown in Figure 5
Property perpendicular muscle 4 produce gap in vertical direction and independent sub- gap cannot be formed.In the present embodiment, the perpendicular muscle of each elasticity of the above
The 4 at least one end points elasticity adjacent with the gap corresponding end points of perpendicular muscle 4 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
Maximize.The sub- gap depth that the perpendicular muscle 4 of two adjacent elasticity is formed is deeper, and electromagnetic wave is less susceptible to be occurred through sub- gap
Electromagnetic leakage.
Because electromagnetic shielding effect is influenceed 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 elasticity in the present embodiment erects muscle 4
It is obliquely installed on the length direction of the optical module, and the angle of inclination of each perpendicular muscle of elasticity is identical
Under normal circumstances, 1/2 of the opening size in gap less than electromagnetic wavelength, you can certain screen is produced to electromagnetic wave
Effect is covered, the size in gap is smaller, it is better to electromagnetic wave volume shield effectiveness.It is contemplated that the difficult processing of each part of optical module
Degree, and the assembly difficulty between each part, in the present embodiment, the distance between perpendicular muscle 4 of two elasticity adjacent in gap is small
The 1/20 of the electromagnetic wavelength produced in circuit board 3.The electromagnetic wavelength that optical module is produced generally in 20mm-30mm, because
This, in the present embodiment, the distance between two adjacent described perpendicular muscle 4 of elasticity should be in below 1.5mm.
Referring to Fig. 6, a kind of state of the perpendicular muscle of elasticity of the offer of the embodiment of the present application one before and after housing assembling is provided and is become
Change schematic diagram.Left part is perpendicular reset condition of the muscle 4 on upper shell 1 of elasticity in Fig. 6；Right part is filled out for the perpendicular muscle 4 of elasticity
The deformed state filled after gap.From the comparing of the two, in reset condition, its thickness is more than gap to the perpendicular muscle 4 of elasticity
Width (shown in dotted line), because the perpendicular muscle 4 of elasticity has certain deformability, after upper shell inserts the lower house
There is the elastic deformation of compression.The state of the perpendicular muscle 4 of elasticity interference filling in gap so that the perpendicular muscle 4 of elasticity and two housings (on
Housing 1 and lower house 2) side wall between with surface-to-surface connection, so as to form independent between the perpendicular muscle 4 of two adjacent elasticity
Sub- gap.
Referring to Fig. 7, a kind of schematic diagram of gap filling state of the offer of the embodiment of the present application one is shown.As seen from Figure 7,
Optical module in the present embodiment also includes conductive adhesive layer 5, and the conductive adhesive layer 5 is arranged at the perpendicular muscle 4 of the elasticity and the upper casing
Between body 1.In the application other embodiment, conductive adhesive layer 5 can also be arranged in the perpendicular muscle 4 of elasticity and upper shell 1 and lower house 2
Between the side wall of at least one housing.The main component of conductive adhesive layer 5 is conducting resinl, and conducting resinl is contained within conductive ion and gluing
Agent, wherein, can be fixed on the perpendicular muscle 4 of elasticity on the side wall of upper shell 1 by adhesive, and be connected as an entirety knot with upper shell 1
Structure, it is to avoid when upper shell 1 and lower house 2 are assembled, the position of the perpendicular muscle 4 of elasticity occurs skew due to extruding, influences sub- gap
Size and shield effectiveness；Conductive ion in conducting resinl then can form continuous conductive logical with the perpendicular muscle 4 of elasticity and upper shell 1
Road.
The present embodiment uses the conductive perpendicular muscle 4 of glue bond elasticity and upper shell 1, compared with other combinations, glue bonding
Mode operate relatively simple, process costs are relatively low.In addition, during upper shell 1 and lower house 2 are assembled, the perpendicular muscle 4 of elasticity
Generation elastic deformation, conductive adhesive layer 5 will enter in sub- gap under the extruding force effect of the perpendicular muscle 4 of two adjacent elasticity, so that
The size in sub- gap is reduced, the shielding properties of screening arrangement 2 can be strengthened to a certain extent.
Although electromagnetic exposure can be greatly decreased with the screening arrangement that above-mentioned implementation method is combined, optical module is improved
Electro Magnetic Compatibility.But, because the perpendicular muscle 4 of elasticity is different from the material of upper shell 1, lower house 2 so that the perpendicular muscle 4 of elasticity is difficult
It is combined in integrally formed mode with upper shell 1 or lower house 2, increased the assembly difficulty of the perpendicular muscle 4 of elasticity.Adjacent two
The distance between the perpendicular muscle 4 of elasticity is smaller, and the dimensional accuracy in sub- gap is easily reduced by the assembling mode such as artificial, meanwhile, shadow
Ring the production efficiency of optical module.Therefore, the application following examples provide a kind of optical module be easy to and assemble.
Referring to Fig. 8 and Fig. 9, the fractionation schematic diagram and sheet of a kind of shown optical module that the offer of the embodiment of the present application two is provided
A kind of occupied state schematic diagram in gap that application embodiment two is provided.From Fig. 8 and Fig. 9, the present embodiment except with implementation
Beyond the identical upper-lower casing structure of example 1 and combination relation, optical module also includes metal ribs body 6 and elastic electric conductor
7。
Metal ribs body 6 includes the perpendicular muscle 61 of the first metal being arranged on the side outer wall of the upper shell 1 and is arranged at lower casing
The perpendicular muscle 62 of the second metal in the side inner walls of body 2；The perpendicular metal of muscle 61 and second of first metal erects length side of the muscle 62 along optical module
To being interspersed；The perpendicular muscle 62 of the perpendicular metal of muscle 61 and second of the first metal size prominent to corresponding housing is respectively less than the side of upper shell 1
The distance between face and the side of lower house 2；So that elastic electric conductor 7 can be filled between upper-lower casing with interference.With embodiment
One is similar to, and at least one end points of the perpendicular muscle 61 of the first metal is in same horizontal line with the second metal corresponding end points of perpendicular muscle 62
On, the distance between perpendicular muscle 62 of the perpendicular metal of muscle 61 and second of the first adjacent metal is produced less than circuit board between the wall of upper-lower casing side
The 1/20 of raw electromagnetic wavelength.
Metal ribs body 6 in the present embodiment is similar with distribution mode with the setting of the perpendicular muscle 4 of elasticity in embodiment two, with this side
Formula sets also roughly the same with the advantage of distribution mode, repeats no more here.The major function of the metal ribs body 6 in the present embodiment
It is to play positioning action, the i.e. distribution of metal ribs body 6 for the formation in sub- gap to directly affect the size in sub- gap.But gold
Category muscle body 6 itself is still point-contact between metal ribs body 6 and side wall or point-to-area contacts without elasticity.Thus,
Need to set elastic electric conductor 7 between metal ribs body 6 and side wall, elastic electric conductor 7 occurs elastic deformation, interference in extruding
Be filled in first metal perpendicular between muscle 61 and the side wall of the upper shell 1, and the perpendicular muscle 62 of second metal with it is described under
Between the side wall of housing 2.Metal ribs body 6 cooperates with elastic electric conductor 7, can separate gap is formed between the wall of two housings side
It is multiple independent sub- gaps.
Because metal ribs body 6 can be identical with the material of upper shell 1 and lower house 2.Thus, the first metal is erected in the present embodiment
Muscle 61 and the upper shell 1, the perpendicular muscle 62 of the second metal are integrated formed structure with the lower house 2.
In the present embodiment, the elastic electric conductor 7 is stainless steel sheet metal component, the stainless steel sheet metal component insertion side wall of upper shell 1
Between the side wall of lower house 2.Stainless steel sheet metal component is the stainless sheet steel processed by sheet metal process.Sheet metal process is a kind of
Comprehensive cold machining process, sheet metal ultra-thin and in uniform thickness can be obtained after being processed through sheet metal process.In addition, the present embodiment
The relatively low stainless steel of middle use chromium content as panel beating raw material, such stainless steel elasticity relatively preferably,
Can occur, compared with being contradicted after large deformation on the side wall of upper-lower casing, to form surface-to-surface contact.Additionally, the conductive glue that compares, sealing
Other can be used for for the elastic electric conductor of closure hole rubber etc., and the cost of stainless steel sheet metal component is lower, is advantageously implemented
The large-scale production of optical module.
During assembling optical module, first stainless steel sheet metal component is inserted in the cavity of lower house 2, then upper shell 1 is embedded in stainless
In steel sheet metal component, the distribution sequence of three's ecto-entad is lower house 2- stainless steels sheet metal component-upper shell 1.Due to the first metal
The perpendicular perpendicular muscle 62 of the metal of muscle 61 and second is interspersed, during upper shell 1 and lower house 2 are mutually chimeric, in the two it
Between stainless steel sheet metal component be subject to the extruding force of the first metal perpendicular both direction of muscle 62 of the perpendicular metal of muscle 61 and second, there is elastic shape
Interference is filled in first metal and erects between muscle 61 and the side wall of the lower house 2 after change, and the perpendicular muscle 62 of second metal
Between the side wall of the upper shell 1.Meanwhile, the perpendicular metal of muscle 61 and second of the first metal that is partly into of stainless steel sheet metal component is erected
In sub- gap between muscle 62, the horizontal length in sub- gap can be to a certain extent reduced, and then strengthen the screen of screening arrangement 2
Cover performance.
To reduce the quantity in sub- gap as far as possible, possibility of the electromagnetic wave by sub- slot leakage is reduced, the application other realities
Apply in example, metal ribs body 6 can also be the combination of an appropriate number of horizontal bar and perpendicular muscle.
Figure 10 is a kind of occupied state schematic diagram in gap that the embodiment of the present application three is provided.As seen from Figure 10, this implementation
The metal ribs body 6 of the side wall of upper shell 1 is distributed in example for T-shaped muscle body 63, T-shaped muscle body 63 is by one section of horizontal bar and one section of perpendicular muscle group
Into integrated formed structure.Wherein, the width (i.e. the length of vertical direction) of horizontal bar can not be too small, and horizontal length can not mistake
Greatly, 1-2 sub- gap of covering.The horizontal length of horizontal bar is long, then easily influence the deformation quantity of elastic electric conductor 7, causes
Gap is produced between horizontal bar and the side wall of upper shell 1, electromagnetic leakage phenomenon occurs.
In addition, the perpendicular muscle 62 (dotted portion in Figure 10) of the second metal should be able to make the second gold medal in the arrangement mode of lower house 2
The horizontal bar part for being located closer to T-shaped muscle body 63 of the perpendicular muscle 62 of category, so that the son that the perpendicular muscle 62 of the second metal is formed with horizontal bar part
Gap is sufficiently narrow, and the electromagnetic wave for avoiding module bodies 1 to produce 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
Decayed in the electromagnetic wave of its internal communication, and the depth in gap is deeper, the degree of electromagnetic wave attenuation is bigger.It is former according to more than
Reason, bigger gap depth is obtained in order to obtain to a certain extent, the distribution of the following examples of the application to metal ribs body 6
Mode is optimized.
Referring to Figure 11, a kind of distribution figure of the perpendicular muscle of metal of the offer of the embodiment of the present application five is shown.Can by Figure 11
See, in the present embodiment, be obliquely installed on the length direction of the perpendicular optical module of muscle 62 of the perpendicular metal of muscle 61 and second of the first metal, and incline
Angle is identical.In order to control the factor such as size and assembling in sub- gap, the angle of inclination of metal ribs body 6 is unsuitable excessive.In order to enter
One step improves the depth in sub- gap, and the side wall of upper shell 1 is highly identical with lower house 2 (being not shown in Figure 11) side wall, and the
Vertical range between one metal, 62 two end points of the perpendicular perpendicular muscle of the metal of muscle 61 and second with upper shell 1 or the height of lower house 2
It is equal.
In the present embodiment, being obliquely installed of metal ribs body 6, metal ribs body 6 and upper shell 1, lower house 2 it is highly equal
It is a kind of mode for increasing sub- gap depth (length of the i.e. sub- gap in vertical direction).The application other embodiment can also be adopted
Increase the depth in sub- gap with any one mode therein or other modes.
In this specification between each embodiment identical similar part mutually referring to.Above-described the application reality
Apply mode and do not constitute restriction to the application protection domain.
Claims (10)
1. a kind of optical module, it is characterised in that the optical module includes that upper shell, lower house, circuit board and multiple elasticity are perpendicular
Muscle, the upper shell, the lower house and the perpendicular muscle of the elasticity are electric conductor；
The upper shell and the lower house include a bottom surface and two sides perpendicular to the bottom surface, described two sides
EDS maps are parallel to each other on the width of the bottom surface；
The distance between two side outer walls of the upper shell are less than the distance between two side outer walls of the lower house；
Two sides of the upper shell are inserted between two sides of the lower house, and the circuit board is arranged at the upper casing
The inside cavity that body and the lower house are formed；
The multiple perpendicular muscle of elasticity is distributed on the side outer wall of the upper shell along the length direction of the optical module, and/or
In the side inner walls of the lower house.
2. optical module as claimed in claim 1, it is characterised in that the upper casing body side surface and the corresponding lower casing body side surface
Between, the 1/20 of the electromagnetic wavelength that the distance between two adjacent described perpendicular muscle of elasticity are produced less than the circuit board.
3. optical module as claimed in claim 2, it is characterised in that the optical module also includes conductive adhesive layer, the conducting resinl
Layer is arranged at the elasticity and erects between muscle and the side of the upper shell, and/or the elasticity erects the side of muscle and the lower house
Between face.
4. the optical module as described in claim any one of 1-3, it is characterised in that length of the perpendicular muscle of elasticity in the optical module
Degree side is inclined upwardly setting, and angle of inclination of each perpendicular muscle of elasticity is identical.
5. a kind of optical module, it is characterised in that the optical module includes upper shell, lower house, circuit board, metal ribs body and elasticity
Electric conductor, the upper shell and the lower house are electric conductor；
The upper shell and the lower house include a bottom surface and two sides perpendicular to the bottom surface, described two sides
EDS maps are parallel to each other on the width of the bottom surface；
The distance between two side outer walls of the upper shell are less than the distance between two side outer walls of the lower house；
Two sides of the upper shell are inserted between two sides of the lower house, and the circuit board is arranged at the upper casing
The inside cavity that body and the lower house are formed；
The metal ribs body includes the perpendicular muscle of the first metal being arranged on the upper casing body side surface outer wall and is arranged at the lower casing
The perpendicular muscle of the second metal on body side surface inwall；
The perpendicular muscle of first metal and the perpendicular muscle of second metal are interspersed along the length direction of the optical module；
The perpendicular muscle of first metal and the perpendicular muscle of second metal size prominent to corresponding housing are respectively less than the upper casing side
The distance between face and the lower casing body side surface；
The elastic electric conductor interference is filled in first metal and erects between muscle and the lower casing body sidewall, and described second
Metal is perpendicular between muscle and the upper casing body sidewall.
6. optical module as claimed in claim 5, it is characterised in that adjacent first metal perpendicular muscle and second metal
The 1/20 of the electromagnetic wavelength that the distance between perpendicular muscle is produced less than the circuit board.
7. optical module as claimed in claim 6, it is characterised in that the perpendicular muscle of first metal and the perpendicular muscle of second metal exist
It is obliquely installed on the length direction of the optical module, and the perpendicular muscle of first metal and second metal erect the angle of inclination of muscle
It is identical.
8. the optical module as described in claim any one of 5-7, it is characterised in that first metal erects muscle and second gold medal
The equal length of the perpendicular muscle of category.
9. optical module as claimed in claim 8, it is characterised in that first metal is perpendicular between muscle and the upper shell, with
And second metal is erected and is integrated formed structure between muscle and the lower house.
10. optical module as claimed in claim 1, it is characterised in that the upper shell and the lower house are that tin alloy, nickel are closed
One kind in gold or tin-nickel alloy.
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| 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710197233.9A CN106873097B (en) | 2017-03-29 | 2017-03-29 | A kind of optical module |
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| CN106873097A true CN106873097A (en) | 2017-06-20 |
| CN106873097B CN106873097B (en) | 2019-02-22 |
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| CN201710197233.9A Active CN106873097B (en) | 2017-03-29 | 2017-03-29 | A kind of optical module |
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| 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 |
| CN112672628A (en) * | 2020-12-30 | 2021-04-16 | 西安开容电子技术有限责任公司 | Shielding device of rotating mechanism |
| 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 |
| CN114815083A (en) * | 2021-01-18 | 2022-07-29 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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| 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 |
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| US6116788A (en) * | 1996-10-11 | 2000-09-12 | Siemens Aktiengesellschaft | Optical plug connector |
| US20070183128A1 (en) * | 2006-02-07 | 2007-08-09 | Methode Electronics, Inc. | Heat sink gasket |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN112672628A (en) * | 2020-12-30 | 2021-04-16 | 西安开容电子技术有限责任公司 | Shielding device of rotating mechanism |
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| CN114815083A (en) * | 2021-01-18 | 2022-07-29 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| 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 |
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|---|---|
| CN106873097B (en) | 2019-02-22 |
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