CN205029672U - Jam -proof optical module - Google Patents
Jam -proof optical module Download PDFInfo
- Publication number
- CN205029672U CN205029672U CN201520795466.5U CN201520795466U CN205029672U CN 205029672 U CN205029672 U CN 205029672U CN 201520795466 U CN201520795466 U CN 201520795466U CN 205029672 U CN205029672 U CN 205029672U
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- CN
- China
- Prior art keywords
- optical
- lens subassembly
- circuit board
- optical module
- metal
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a jam -proof optical module, including the circuit board, encapsulate in optical assembly on the circuit board, the optical assembly include optical chip and paste in the lens subassembly of optical chip top, the surface of lens subassembly has iron shielded layer, iron shielded layer last with the corresponding position department of optics passageway of lens subassembly opens jaggedly. The utility model discloses a jam -proof optical module sets up iron shielded layer through the surface at the lens subassembly, and the produced interfering signal of transmitting terminal just can not reach the receiving terminal again, and then the detector that can't enter into the receiving terminal causes the jam -proof ability of interference, improvement optical module that can be very big.
Description
Technical field
The utility model relates to a kind of optical module.
Background technology
In optical communications industry, in the product of especially two-forty transceiver, transmitting and receiving signal easily produces interference, makes distorted signals.The effectively method significantly reducing or eliminate receiving and transmitting signal interference is not had in current industry, the interference signal of interference source generation is just reduced as possible from technique, one is the distance of as far as possible elongating transmitting and receiving, because interference performance is inversely proportional to distance between the two; Two is the length by shortening laser signal line, because the energy of interference signal is directly proportional to the length of holding wire.But above two kinds of modes have limitation: the first anti-tampering mode is subject to the limitation of industry to small product size, and board area is limited, adds the impact of other device layouts, and it is oversize that distance can not be drawn, so be not very large to reducing the contribution disturbed; The anti-tampering mode of the second realizes the requirement of technique very high, and the more short more difficult operation of holding wire, easily causes the damage of laser, also holding wire cannot be shortened to 0 simultaneously, therefore disturb and exist always, and the order of magnitude be can not ignore.
Summary of the invention
The utility model easily produces the problem of interference in order to the optical module transmitting and receiving signal solving existing two-forty transceiver, proposes a kind of anti-disturbing light module, can solve the problem of interference.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of anti-disturbing light module, comprise circuit board, the optical assembly be packaged on described circuit board, described optical assembly comprises optical chip and is affixed on the lens subassembly above described optical chip, described lens subassembly comprises body, described body offers optical channel, the surface of described lens subassembly has metal screen layer, and position corresponding with described optical channel on described metal screen layer has breach.
Compared with prior art, advantage of the present utility model and good effect are: anti-disturbing light module of the present utility model, by the surface at lens subassembly, metal screen layer is set, the interference signal that transmitting terminal produces would not arrive receiving terminal again, and then the detector that cannot enter into receiving terminal causes interference, the anti-tampering ability of optical module can be improved greatly.
After reading the detailed description of the utility model execution mode by reference to the accompanying drawings, other features of the present utility model and advantage will become clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of example structure schematic diagram of the anti-disturbing light module that the utility model proposes;
Fig. 2 is the longitudinal sectional view of Fig. 1;
Fig. 3 is the partial structurtes schematic diagram of lens subassembly 202 in Fig. 1;
Fig. 4 is another the example structure schematic diagram of the anti-disturbing light module that the utility model proposes.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one, the present embodiment proposes a kind of anti-disturbing light module, as shown in Figure 1 and Figure 2, comprise circuit board 10, the optical assembly 20 be packaged on described circuit board 10, described optical assembly 20 comprises optical chip 201 and is affixed on the lens subassembly 202 above described optical chip 201, as shown in Figure 3, lens subassembly 202 comprises body 203, body 203 offers optical channel 204, the surface of described lens subassembly 202 has metal screen layer 30, and on described metal screen layer 30, the position corresponding with optical channel 204 has breach 301.The anti-disturbing light module of the present embodiment, by arranging metal screen layer 30 on the surface of lens subassembly 202, wherein, optical assembly 20 can be light emission component, optical fiber receive module, or also simultaneously on the lens subassembly of light emission component and optical fiber receive module, metal screen layer can be set respectively, if arrange metal screen layer on the lens subassembly of light emission component, the interference signal that then transmitting terminal produces will be shielded in inside its metal screen layer, receiving terminal can not be arrived, and then the detector that cannot enter into receiving terminal causes interference, if arrange metal screen layer on the lens subassembly of optical fiber receive module, the interference signal that then transmitting terminal produces will be shielded in outside its metal screen layer, receiving terminal can not be arrived equally, and then the detector that cannot enter into receiving terminal causes interference, if simultaneously arrange metal screen layer respectively on the lens subassembly of light emission component and optical fiber receive module, then play the effect of Double-protection, the anti-tampering ability of optical module can be improved further.
This gives a kind of specific implementation of metal screen layer 30, as shown in Figure 2 and Figure 3, metal screen layer 30 is the coat of metal, this coat of metal is plated in the region place of body 203 surface except optical channel 204 place, when lens subassembly 202 is fixed on circuit boards, namely optical chip is surrounded shielding by the wall with the coat of metal of lens subassembly 202, and launching the interference signal produced would not arrive receiving terminal again, and then can not cause interference to receiving terminal.
As shown in Figure 3, for the structural representation of lens subassembly 202, design because lens subassembly 202 needs the profile according to actual light assembly, conveniently fixedly mount lens subassembly 202 simultaneously and some auxiliary mounting structure may be set on lens subassembly 202, therefore, the outer shape of lens subassembly 202 has multiple, especially may occur that the external surface shape of some lens subassemblies 202 has projection, pothole etc., conveniently coating, improve the shielding properties of the coat of metal simultaneously, the preferred described coat of metal is plated on the inner surface of described lens subassembly, because the inner surface of lens subassembly is relatively continuous, smooth, convenient plating, and coat of metal closed is good after plating, be conducive to improving shielding properties.
Wherein, described circuit board 10 is PCB, on the circuit board 10 corresponding with lens subassembly 202 position, preferably does not need to walk the place of holding wire to spread metal, be connected with ground wire.Optical chip 201(laser, detector, driving chip etc.) paste on the circuit board 10, lens subassembly 202 is attached to the circuit board position directly over optical chip 201, after lens subassembly 202 is installed on the circuit board 10, its end face is fitted with circuit board 10 intimate surface being covered with metal, form the turnover screen closed, reach good interference signal shield effectiveness.
Embodiment two, the present embodiment proposes the anti-disturbing light module of another version, wherein, comprise circuit board 10, the optical assembly 20 be packaged on described circuit board 10, described optical assembly 20 comprises optical chip 201 and is affixed on the lens subassembly 202 above described optical chip 201, in the present embodiment, as shown in Figure 4, described metal screen layer 30 is for covering on the metal cap of described lens subassembly 202 outer surface, and position corresponding with the optical channel of described lens subassembly 202 on described metal cap has breach 301.The optical module of the present embodiment, metal cap covers on the outer surface of lens subassembly 202 completely, wherein, identical with embodiment one, optical assembly 20 can be light emission component, optical fiber receive module, or also simultaneously can arrange metal cap respectively as metal screen layer on the lens subassembly of light emission component and optical fiber receive module, the interference signal produced for preventing transmitting terminal can not arrive receiving terminal, and then the detector that cannot enter into receiving terminal causes interference.
Described circuit board 10 is PCB, on the circuit board 10 corresponding with lens subassembly 202 position, preferably does not need to walk the place of holding wire to spread metal, be connected with ground wire.Optical chip 201(laser, detector, driving chip etc.) paste on the circuit board 10, lens subassembly 202 is attached to the circuit board position directly over optical chip 201, metal cap covers on the outer surface of lens subassembly 202, the metal cap metallic member corresponding to circuit board 10 connects together, form the radome closed, reach effect interference signal shielded equally, now also can not produce interference to receiving terminal.
The mode that metal cap is connected with circuit board 10 has a variety of, and such as, described metal cap is welded on described circuit board 10.Or described metal cap is bonded on described circuit board 10.Again or, the bottom of described metal cap is formed with several stitch, described circuit board 10 has the pin hole matched with described stitch, and described stitch is inserted in described pin hole, for by fixing for metal cap on circuit boards.(not shown)
Above two schemes, if technique can accomplish that 100% closes, interference can be eliminated completely; If due to the needs that technological requirement and element are put, must have some areas cannot be completely closed, the anti-interference structure of this optical module also can reduce interference greatly, has the effect significantly preventing receiving and transmitting signal from disturbing than prior art.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection range of the present utility model.
Claims (9)
1. an anti-disturbing light module, comprise circuit board, the optical assembly be packaged on described circuit board, described optical assembly comprises optical chip and is affixed on the lens subassembly above described optical chip, described lens subassembly comprises body, described body offers optical channel, it is characterized in that: the surface of described lens subassembly has metal screen layer, position corresponding with described optical channel on described metal screen layer has breach.
2. optical module according to claim 1, is characterized in that: described metal screen layer is the coat of metal, and the described coat of metal is plated in the region place of described body surface except described optical channel.
3. optical module according to claim 2, is characterized in that: the described coat of metal is plated on the inner surface of described body.
4. optical module according to claim 1, is characterized in that: described metal screen layer is the metal cap covering on described lens subassembly outer surface, and position corresponding with the optical channel of described lens subassembly on described metal cap has breach.
5. optical module according to claim 4, is characterized in that: described metal cap is welded on described circuit board.
6. optical module according to claim 4, is characterized in that: described metal cap is bonded on described circuit board.
7. optical module according to claim 4, is characterized in that: the bottom of described metal cap is formed with several stitch, described circuit board has the pin hole matched with described stitch, and described stitch is inserted in described pin hole.
8. the optical module according to any one of claim 1-6, is characterized in that: described optical assembly is optical fiber receive module and/or light emission component.
9. the optical module according to any one of claim 1-6, is characterized in that: described circuit board is PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795466.5U CN205029672U (en) | 2015-10-15 | 2015-10-15 | Jam -proof optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795466.5U CN205029672U (en) | 2015-10-15 | 2015-10-15 | Jam -proof optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205029672U true CN205029672U (en) | 2016-02-10 |
Family
ID=55262173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520795466.5U Expired - Fee Related CN205029672U (en) | 2015-10-15 | 2015-10-15 | Jam -proof optical module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205029672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882523A (en) * | 2018-06-27 | 2018-11-23 | 青岛海信宽带多媒体技术有限公司 | Optical module |
-
2015
- 2015-10-15 CN CN201520795466.5U patent/CN205029672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882523A (en) * | 2018-06-27 | 2018-11-23 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20191015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |