CN211454041U - Optical transmission module - Google Patents
Optical transmission module Download PDFInfo
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- CN211454041U CN211454041U CN202020223543.0U CN202020223543U CN211454041U CN 211454041 U CN211454041 U CN 211454041U CN 202020223543 U CN202020223543 U CN 202020223543U CN 211454041 U CN211454041 U CN 211454041U
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Abstract
The utility model relates to an optical transmission module, which comprises a base, an optical secondary module, an electronic secondary module and a cover plate, wherein the optical secondary module and the electronic secondary module are respectively arranged between the base and the cover plate, one end of the optical secondary module is connected with the electronic secondary module, and the other end is provided with an interface; the electromagnetic shielding device is characterized by further comprising a shielding component for shielding electromagnetism, wherein the shielding component comprises a first card and a second card, the first card and the second card are matched with each other and clamp the optical submodule, and a shielding wall is formed between the electronic submodule and the interface. The optical transmission module provided by the utility model can form a tight shielding partition between the electronic secondary module and the interface, so as to achieve a better electromagnetic shielding effect, thereby effectively enhancing the anti-electromagnetic interference performance; in addition, during assembly, the installation process of the shielding component is simpler and more efficient, the assembly process of the optical transmission module is facilitated to be simplified, and the assembly efficiency is improved.
Description
Technical Field
The utility model relates to an optical communication equipment technical field, concretely relates to optical transmission module.
Background
The Optical transmission module is divided into a single-mode Optical transmission module and a multi-mode Optical transmission module, and includes an Optical Subassembly (OSA) and an Electronic Subassembly (ESA) on the whole product architecture, wherein the OSA is a key component for implementing photoelectric conversion, and generally includes a Transmitter Optical Subassembly (TOSA), a Receiver Optical Subassembly (ROSA) or a receiver Optical Subassembly (BOSA); an electronic sub-module is connected to the optical sub-module, primarily for signal processing, and typically includes a circuit board assembly (PCBA).
In the prior art, an optical transmission module generally includes a base, a cover plate, an optical sub-module and an electronic sub-module, which are packaged between the base and the cover plate, wherein an optical transmission component and/or an optical reception component in the optical sub-module are generally provided with an interface for connecting an optical fiber; because the optical transmission module belongs to accurate electronic equipment, the influence by electromagnetic interference (EMI) is very big, because the setting of interface again, make the optical transmission module have the problem of being disturbed, therefore, in the current optical transmission module, usually can set up the anti-jamming part who is used for anti-electromagnetic interference in the optical submodule (set up between interface and electronic submodule promptly), however, in the current optical transmission module, the performance of anti-jamming part is relatively poor, even adopt absorbing material, also there is the problem of electromagnetic leakage, and current anti-jamming part, the assembly of being not convenient for very much, the urgent need to improve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to improve the not enough that exists among the prior art, provide an optical transmission module, for prior art, not only can effectively strengthen anti-electromagnetic interference performance, installation, convenient assembling can effectively improve production efficiency moreover.
The utility model adopts the technical proposal that:
an optical transmission module comprises a base, an optical submodule, an electronic submodule and a cover plate, wherein the optical submodule and the electronic submodule are respectively arranged between the base and the cover plate, one end of the optical submodule is connected with the electronic submodule, and the other end of the optical submodule is provided with an interface; the shielding component comprises a first card and a second card, the first card and the second card are matched with each other and clamp the optical sub-module, and a shielding wall is formed between the electronic sub-module and the interface. In the scheme, the shielding component comprises a first clamping piece and a second clamping piece which can be matched with each other, and when the optical subassembly is assembled, the optical subassembly can be transversely clamped along the transverse direction of the optical subassembly through the matching of the first clamping piece and the second clamping piece, so that a tight shielding partition can be formed between the electronic subassembly and the interface, a better electromagnetic shielding effect is achieved, and the electromagnetic interference resistance is effectively enhanced; in addition, when the assembly, can install first card and second card respectively alone to make shielding member's installation simpler, high-efficient, be favorable to simplifying the assembling process of optical transmission module, improve assembly efficiency.
Preferably, the first card and the second card are made of metal materials respectively.
Furthermore, first card and second card are provided with notch respectively, form the bayonet socket that is used for blocking the optics submodule through the cooperation of first card and second card.
In one scheme, the first clamping piece and the second clamping piece are arranged adjacently, and the optical sub-modules are clamped from two opposite directions by utilizing the groove openings respectively. So that the optical submodule is transversely clamped along the transverse direction of the optical submodule through the matching of the first card and the second card, and a tight shielding partition can be formed between the electronic submodule and the interface, thereby achieving a better electromagnetic shielding effect.
In another scheme, the first card is provided with a cavity for accommodating the second card, and the second card is placed in the cavity. Thereby make first card and second card can be connected as an organic wholely, both be convenient for fix a position and assemble, make again first card and second card can be better crisscross each other to be favorable to improving electromagnetic shield's effect.
In order to adapt to the external shape structures of the light emitting component and the light receiving component in the optical sub-module so as to achieve better sealing effect, the notch is preferably in a U-shaped structure. So that first card and second card after mutually supporting, can form the bayonet socket of circular structure to with the sleeve looks adaptation in light emission subassembly and the light receiving subassembly, realize better shielding effect.
In order to firmly fix the first clamping piece and the second clamping piece and prevent the first clamping piece and the second clamping piece from loosening in the use process, further, the first clamping piece and/or the second clamping piece are respectively in a rectangular structure. When the rectangular structure is adopted, the first clamping piece and/or the second clamping piece are/is provided with edges and corners, so that the first clamping piece and/or the second clamping piece can be conveniently fixed between the base and the cover plate.
Preferably, the first card and the second card are respectively provided with one notch or two notches. In order to meet different shielding requirements.
To facilitate the mounting of the shielding member, further, the base is provided with a notch for receiving the shielding member. By providing the notches, positioning and mounting of the shielding member is facilitated.
In order to fix the first clamping piece and the second clamping piece by using the cover plate, the two sides of the first clamping piece and the second clamping piece are respectively provided with a step for matching with the cover plate. Through the cooperation of step and apron, firm fixed shield part.
Preferably, the optical sub-module comprises a light emitting component and/or a light receiving component, and the electronic sub-module comprises a circuit board connected with the light emitting component and/or the light receiving component.
Compared with the prior art, use the utility model provides a pair of optical transmission module has following beneficial effect:
1. the optical transmission module can transversely clamp the optical sub-module along the transverse direction of the optical sub-module, so that a tight shielding partition can be formed between the electronic sub-module and the interface, a better electromagnetic shielding effect is achieved, and the electromagnetic interference resistance is effectively enhanced.
2. This optical transmission module not only can effectively strengthen anti-electromagnetic interference performance, moreover when the assembly, can install first card and second card respectively alone to make shielding member's installation simpler, high-efficient, be favorable to simplifying optical transmission module's assembling process, improve assembly efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an optical sub-module and an electronic sub-module in a conventional optical transmission module.
Fig. 2 is a schematic view of a partial structure of a base in an optical transmission module provided in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a shielding member in an optical transmission module provided in embodiment 1 of the present invention.
Fig. 4 is a schematic structural diagram of the optical transmission module provided in embodiment 1 of the present invention after the first card and the second card are matched together in the shielding member.
Fig. 5 is a schematic partial structure diagram of an optical transmission module provided in embodiment 1 of the present invention.
Fig. 6 is a schematic structural diagram of a shielding member in an optical transmission module provided in embodiment 2 of the present invention.
Fig. 7 is a schematic structural diagram of an optical transmission module and a shielding member provided in embodiment 1 of the present invention.
Description of the drawings
An electronic sub-assembly 200, a circuit board 201,
A base 300, a notch 301,
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment provides an optical transmission module, which includes a base 300, an optical sub-module 100, an electronic sub-module 200, and a cover plate, wherein the optical sub-module 100 and the electronic sub-module 200 are respectively disposed between the base 300 and the cover plate, one end of the optical sub-module 100 is connected to the electronic sub-module 200, and the other end is provided with an interface 105 for connecting an optical fiber; in this embodiment, the optical transmission module further includes a shielding member 400 for shielding electromagnetic waves, where the shielding member 400 includes a first card 401 and a second card 402, and the first card 401 and the second card 402 cooperate with each other and clamp the optical sub-module 100, so as to form a shielding wall between the electronic sub-module 200 and the interface 105. In this embodiment, the shielding member 400 includes a first card 401 and a second card 402 that can be engaged with each other, and when assembling, the optical subassembly 100 can be laterally clamped along the transverse direction of the optical subassembly 100 by engaging the first card 401 with the second card 402, so that a tight shielding and separation can be formed between the electronic subassembly 200 and the interface 105, a better electromagnetic shielding effect can be achieved, and the electromagnetic interference resistance can be effectively enhanced; in addition, when assembling, the first card 401 and the second card 402 can be separately installed, so that the installation process of the shielding member 400 is simpler and more efficient, the assembly process of the optical transmission module is simplified, and the assembly efficiency is improved.
It is understood that in the present embodiment, the optical subassembly 100 includes the light emitting element 101 and/or the light receiving element 102, and the electronic subassembly 200 includes the circuit board 201, and the circuit board 201 is connected to the light emitting element 101 and/or the light receiving element 102. As an example, as shown in fig. 1, fig. 2 and fig. 5, in this embodiment, the optical subassembly 100 includes the light emitting component 101 and the light receiving component 102, that is, the optical transmission module has both light receiving/emitting functions (i.e., transmits and receives an integrated light transmission module), the light emitting component 101 and the light receiving component 102 are respectively connected to the circuit board 201, and in order to facilitate installation of the shielding component 400, in this embodiment, the base 300 is provided with a notch 301 for accommodating the shielding component 400, and as shown in fig. 2, the notch 301 may also be used for accommodating both the electronic subassembly 200 (e.g., the circuit board 201 in the electronic subassembly 200) and a part of the optical subassembly 100 (e.g., one end of the light emitting component 101 and the light receiving component 102), and as shown in fig. 5, by providing the notch 301, positioning and installation of the shielding component 400 are facilitated.
Preferably, in this embodiment, the first card 401 and the second card 402 are made of a metal material, such as a conductive material, such as iron or steel, so as to achieve the function of electromagnetic shielding.
In a further aspect, the first card 401 and the second card 402 are respectively provided with a notch 403, and a bayonet 406 for clamping the optical sub-module 100 is formed by the cooperation of the first card 401 and the second card 402. So as to laterally clamp the light emitting module 101 and the light receiving module 102 in a lateral direction of the light emitting module 101 and the light receiving module 102 to form a shielding wall; in order to adapt to the external shape structures of the light emitting module 101 and the light receiving module 102 in the optical subassembly 100, as shown in fig. 1, 4 and 5, the light emitting module 101 and the light receiving module 102 respectively include a cylindrical sleeve 103, so as to be a preferred solution, the notch 403 is a U-shaped structure, as shown in fig. 3, the bottom of the U-shaped structure is semicircular, so that after the first card 401 and the second card 402 are mutually matched, a bayonet 406 with a circular structure can be formed, as shown in fig. 4, so as to adapt to the sleeve 103 in the light emitting module 101 and the light receiving module 102, thereby achieving a better shielding effect. Specifically, the first card 401 and the second card 402 may be preferably clamped on the sleeve 103 on one side of the flange 104 in the light emitting module 101 and the light receiving module 102, respectively, as shown in fig. 5, and the sleeve 103 on the other side of the flange 104 may be further provided with other electromagnetic shielding devices, such as a conductive rubber ring disclosed in chinese patent, so as to achieve multi-stage protection and shielding functions.
It is understood that the shape mechanism of the first card 401 and the second card 402 has various embodiments, and in order to facilitate the secure fixing of the first card 401 and the second card 402 and prevent the first card 401 and the second card 402 from loosening during the use, in a further aspect, the first card 401 and/or the second card 402 have a rectangular structure, as shown in fig. 3 and 4, so that the first card 401 and/or the second card 402 have corners to facilitate the fixing between the base 300 and the cover plate when the rectangular structure is adopted.
It is understood that the number of the notches 403 on the first card 401 and the second card 402 can be determined according to actual requirements, and since the optical sub-module 100 includes both the light emitting component 101 and the light receiving component 102 in this embodiment, two notches 403 are respectively disposed on the first card 401 and the second card 402 in this embodiment, as shown in fig. 3-5, so as to be adapted to the light emitting component 101 and the light receiving component 102 which are disposed in parallel in the optical sub-module 100.
The first card 401 and the second card 402 have multiple matching modes, as a preferred option, the first card 401 and the second card 402 are disposed adjacent to each other, and the optical sub-assembly 100 is clamped by the notches 403 from two opposite directions, as shown in fig. 4 and 5, that is, in this embodiment, the first card 401 and the second card 402 may have the same structure, and the optical sub-assembly 100 may be transversely clamped along the transverse direction of the optical sub-assembly 100 by the matching of the first card 401 and the second card 402, so that a tight shielding partition may be formed between the electronic sub-assembly 200 and the interface 105, and a better electromagnetic shielding effect may be achieved.
In order to fix the first card 401 and the second card 402 by the cover plate, in a further embodiment, steps 405 for matching the cover plate are respectively disposed on both sides of the first card 401 and the second card 402, and as shown in fig. 3 and 4, the shielding member 400 can be firmly fixed by the steps 405 matching with the cover plate.
Example 2
The main difference between the present embodiment 2 and the above embodiment 1 is that, in the optical transmission module provided in the present embodiment, the matching manner of the first card 401 and the second card 402 is different, in this embodiment, the first card 401 is provided with a cavity 404 for receiving the second card 402, the second card 402 is adapted to be placed in the cavity 404, as shown in fig. 6, and the first card 401 and the second card 402 are parallel to each other, that is, in the present embodiment, the first card 401 and the second card 402 have different structures, but by the cooperation of the two, the bayonet 406 for catching the sleeve 103 can be formed, by adopting the scheme provided by the embodiment, the first card 401 and the second card 402 can be connected into a whole, so that the positioning and the assembly are facilitated, and the first card 401 and the second card 402 can be better staggered with each other, thereby being beneficial to improving the electromagnetic shielding effect.
Example 3
The main difference between this embodiment 3 and the above embodiment 1 is that in the optical transmission module provided in this embodiment, the optical subassembly 100 only includes the light receiving component 102, that is, the optical transmission module only has a light receiving function, the light receiving component 102 is connected to the circuit board 201, and in order to be adapted to the optical subassembly 100, in this embodiment, the first card 401 and the second card 402 in the shielding member 400 are only provided with one notch 403, as shown in fig. 7, when being assembled, the first card 401 and the second card 402 are mutually matched to clamp the sleeve 103 on the flange 104 side of the light receiving component 102, so that a tight shielding and separation can be formed between the electronic subassembly 200 (i.e., the circuit board 201) and the interface 105, a better electromagnetic shielding effect can be achieved, and the electromagnetic interference resistance can be effectively enhanced.
Example 4
The main difference between this embodiment 4 and the above embodiment 1 is that in the optical transmission module provided in this embodiment, the optical subassembly 100 only includes the light emitting component 101, that is, the optical transmission module only has the light emitting function, the light emitting component 101 is connected to the circuit board 201, and in order to adapt to the optical subassembly 100, in this embodiment, the first card 401 and the second card 402 in the shielding member 400 are only provided with one notch 403, as shown in fig. 7, when assembling, the first card 401 and the second card 402 are mutually matched to clamp the sleeve 103 on the flange 104 side in the light emitting component 101, so that a tight shielding and separation can be formed between the electronic subassembly 200 (i.e., the circuit board 201) and the interface 105, a better electromagnetic shielding effect can be achieved, and the electromagnetic interference resistance can be effectively enhanced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. An optical transmission module comprises a base, an optical submodule, an electronic submodule and a cover plate, wherein the optical submodule and the electronic submodule are respectively arranged between the base and the cover plate, one end of the optical submodule is connected with the electronic submodule, and the other end of the optical submodule is provided with an interface; the electromagnetic shielding device is characterized by further comprising a shielding component for shielding electromagnetism, wherein the shielding component comprises a first card and a second card, the first card and the second card are matched with each other and clamp the optical submodule, and a shielding wall is formed between the electronic submodule and the interface.
2. The optical transmission module of claim 1, wherein the first card and the second card are each made of a metal material.
3. The optical transmission module of claim 1, wherein the first card and the second card are each provided with a notch, and a bayonet for latching the optical subassembly is formed by cooperation of the first card and the second card.
4. The optical transmission module of claim 3, wherein the first card is disposed adjacent to the second card and engages the optical subassemblies from two opposite directions with notches, respectively.
5. The optical transmission module of claim 3, wherein the first card is provided with a cavity for receiving the second card, the second card being for placement in the cavity.
6. The optical transmission module of claim 4 or 5, wherein the notch is of a U-shaped configuration.
7. The optical transmission module as claimed in any one of claims 3 to 5, wherein the first card and/or the second card each have a rectangular configuration.
8. The optical transmission module according to any one of claims 3 to 5, wherein the first card and the second card are provided with one notch or two notches, respectively.
9. The optical transmission module as claimed in any one of claims 3 to 5, wherein the first card and the second card are provided with steps on both sides thereof for matching with the cover plate, respectively.
10. An optical transmission module as claimed in any one of claims 3 to 5, wherein the base is provided with a slot for receiving the shielding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020223543.0U CN211454041U (en) | 2020-02-28 | 2020-02-28 | Optical transmission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020223543.0U CN211454041U (en) | 2020-02-28 | 2020-02-28 | Optical transmission module |
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| CN211454041U true CN211454041U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020223543.0U Active CN211454041U (en) | 2020-02-28 | 2020-02-28 | Optical transmission module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612090A (en) * | 2020-12-07 | 2021-04-06 | 索尔思光电（成都）有限公司 | Optical module structure |
| TWI790125B (en) * | 2022-02-21 | 2023-01-11 | 香港商雲暉科技有限公司 | EMI shield, fiber optic transition module with EMI shield, and method for assembling the fiber optic transition module |
| WO2023050748A1 (en) * | 2021-09-30 | 2023-04-06 | 青岛海信宽带多媒体技术有限公司 | Optical module |
-
2020
- 2020-02-28 CN CN202020223543.0U patent/CN211454041U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612090A (en) * | 2020-12-07 | 2021-04-06 | 索尔思光电（成都）有限公司 | Optical module structure |
| WO2023050748A1 (en) * | 2021-09-30 | 2023-04-06 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| TWI790125B (en) * | 2022-02-21 | 2023-01-11 | 香港商雲暉科技有限公司 | EMI shield, fiber optic transition module with EMI shield, and method for assembling the fiber optic transition module |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20221115 Address after: No. 1035, Chenfeng Road, Dongcheng Street, Jintan District, Xuzhou City, Jiangsu Province, 213200 Patentee after: Jiangsu solsi Communication Technology Co.,Ltd. Address before: 611731 standard workshop No.5, No.2, West District, Chengdu Export Processing Zone, No.8 Kexin Road, West District, high tech Zone, Chengdu, Sichuan Patentee before: SOURCE PHOTONICS (CHENGDU) Co.,Ltd. |
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