CN214412745U - Optical fiber network card and network equipment - Google Patents
Optical fiber network card and network equipment Download PDFInfo
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- CN214412745U CN214412745U CN202120544283.1U CN202120544283U CN214412745U CN 214412745 U CN214412745 U CN 214412745U CN 202120544283 U CN202120544283 U CN 202120544283U CN 214412745 U CN214412745 U CN 214412745U
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Abstract
The utility model relates to the technical field of optical communication, and provides an optical fiber network card and network equipment, the optical fiber network card comprises a network card baffle, an optical module, a flexible circuit module and a main circuit module, the optical module comprises a circuit substrate, an optical fiber port connected with the network card baffle, an optical coupling piece connected between the circuit substrate and the optical fiber port, and a photoelectric conversion chip integrated on the circuit substrate, the optical coupling piece is coupled with the photoelectric conversion chip, the circuit substrate is electrically connected with the main circuit module through the flexible circuit module, the optical fiber network card electrically connects the circuit substrate with the main circuit module through the flexible circuit module, the production cost of the optical fiber network card is effectively reduced, a soft connection is formed between the circuit substrate and the main circuit module, so as to overcome the structural tolerance generated in the production process of the optical fiber network card, and effectively ensure the coupling efficiency between the optical coupling piece and the photoelectric conversion chip, thereby improving the working performance of the optical network card.
Description
Technical Field
The utility model relates to an optical communication technical field especially provides an optical network card and network equipment.
Background
With the rapid expansion of multimedia services such as video on demand, video phones, video conferences and the like, higher requirements are put forward on the broadband and high-speed of physical networks, so that a fiber-to-the-home transmission network and a fiber-to-the-desktop transmission network become the most ideal transmission network, high-speed information services are provided for users, and the continuous development of all-optical switching technology is promoted.
Specifically, the high-speed network device generally adopts an optical fiber network card for performing an interactive communication, the existing optical fiber network card comprises a network card baffle, an optical module and a main circuit module, the optical module comprises an optical fiber port, an optical coupler, a photoelectric conversion chip and a circuit substrate, the optical fiber port is fixedly connected to the network card baffle, the photoelectric conversion chip is integrated on the circuit substrate, the optical coupler is fixedly connected between the optical fiber port and the circuit substrate and is coupled with the photoelectric conversion chip, and the circuit substrate is electrically connected with the main circuit module in an insertion manner, so that components or structures such as a plug, a slow start chip, a metal tube shell and the like are additionally arranged on the main circuit module to ensure the stability and the insertion safety of an insertion structure between the circuit substrate and the main circuit module, and the production cost of the optical fiber network card is greatly increased; in addition, the optical network card inevitably generates structural tolerance among all parts in the production process, and after the circuit substrate is inserted into the main circuit module, the optical network card integrally forms a rigid structure, and due to the structural tolerance, the coupling position of the optical coupling element and the photoelectric conversion chip is changed, so that the coupling efficiency of the optical coupling element and the photoelectric conversion chip is reduced, and the adverse effect is brought to the working performance of the optical network card.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical network card and network equipment aims at solving the technical problem that current optical network card manufacturing cost is high and working property is poor.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions: an optical fiber network card comprises a network card baffle, an optical module, a flexible circuit module and a main circuit module, wherein the optical module comprises a circuit substrate, an optical fiber port connected to the network card baffle, an optical coupling piece connected between the circuit substrate and the optical fiber port, and a photoelectric conversion chip integrated on the circuit substrate, the optical coupling piece is coupled with the photoelectric conversion chip, and the circuit substrate is electrically connected with the main circuit module through the flexible circuit module.
The embodiment of the utility model provides an optical network card has following beneficial effect at least: the flexible circuit module is adopted to electrically connect the circuit substrate with the main circuit module, components or structures such as a plug connector, a slow start chip, a metal tube shell and the like do not need to be additionally arranged on the main circuit module, the production cost of the optical fiber network card is effectively reduced, the flexible connection is formed between the circuit substrate and the main circuit module, a certain displacement space is formed between the optical module and the main circuit module, the structural tolerance generated in the production process of the optical fiber network card is overcome, the change of the coupling position between the optical coupling element and the photoelectric conversion chip due to the structural tolerance is avoided, the coupling efficiency between the optical coupling element and the photoelectric conversion chip is effectively ensured, and the working performance of the optical fiber network card is improved.
In one embodiment, the optical fiber port includes a base, and an end of the optical coupling member facing away from the circuit substrate is clamped to the base.
In one embodiment, the optical fiber port further includes a cover, a clamping groove is formed in the base, a clamping portion is arranged at one end of the optical coupling member away from the circuit substrate, the clamping portion is clamped in the clamping groove of the base, and the cover is arranged on the base to seal the clamping groove.
In one embodiment, a clamping groove is formed in the base, and a clamping portion is arranged at one end, away from the circuit substrate, of the optical coupling piece and clamped in the clamping groove of the base and bonded in the clamping groove of the base.
In one embodiment, the optical fiber network card further includes a physical layer chip, the optical module further includes a signal conditioning chip, the signal conditioning chip and the physical layer chip are both integrated on the main circuit module, and the signal conditioning chip is located between the flexible circuit module and the physical layer chip.
In one embodiment, a heat dissipation plate is disposed on the optical fiber port, and the circuit board is attached to the heat dissipation plate.
In one embodiment, a heat conducting layer is disposed between the circuit substrate and the heat dissipating plate.
In one embodiment, the two opposite sides of the optical fiber port are provided with connecting portions, and each connecting portion is fixedly connected with the network card baffle.
In one embodiment, one end of the flexible circuit module is welded with the circuit substrate and the other end is welded with the main circuit module.
In one embodiment, the fiber port is a metal connector.
In order to achieve the above object, an embodiment of the present invention further provides a network device, including the above optical fiber network card.
Since the network device adopts all embodiments of the fiber network card, at least all the beneficial effects of the embodiments are achieved, and no further description is given here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical network card provided in an embodiment of the present invention;
FIG. 2 is an exploded view of the fiber network card shown in FIG. 1;
fig. 3 is an exploded view of a fiber port provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an optical coupling element according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10. the optical fiber network card comprises an optical fiber network card 11, a network card baffle 12, an optical module 121, a circuit substrate 122, an optical fiber port 1221, a base 1222, a cover 1223, a card slot 1224, a heat dissipation plate 1225, a connection portion 123, an optical coupler 1231, a card connection portion 124, a photoelectric conversion chip 125, a signal conditioning chip 13, a flexible circuit module 14, a main circuit module 15 and a physical layer chip.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example one
Referring to fig. 1 and fig. 2, an optical network card 10 includes a network card baffle 11, an optical module 12, a flexible circuit module 13, and a main circuit module 14, where the optical module 12 includes a circuit substrate 121, an optical fiber port 122 connected to the network card baffle 11, an optical coupler 123 connected between the circuit substrate 121 and the optical fiber port 122, and a photoelectric conversion chip 124 integrated on the circuit substrate 121, the optical coupler 123 is coupled to the photoelectric conversion chip 124, and the circuit substrate 121 is electrically connected to the main circuit module 14 through the flexible circuit module 13.
The network card baffle 11 is fixedly connected to the main circuit module 14 and is used to mount the optical network card 10 on a chassis of a network device, and the optical fiber port 122 is provided with an interface (not shown) for inserting an optical fiber, where the interface may be an LC interface, an SC interface, an FC interface, an ST interface, or the like.
Specifically, the optical coupling member 123 includes a plurality of lenses (not shown), and each lens constitutes a lens array for deflecting the optical signal vertically emitted from the surface of the photoelectric conversion chip 124 by 90 ° and horizontally entering the optical fiber, or deflecting the optical signal horizontally entering from the optical fiber through the interface of the optical fiber port 122 by 90 ° and vertically entering the photoelectric conversion chip 124.
Specifically, the circuit substrate 121 is a nipd-au circuit board, the photoelectric conversion chip 124 is integrated on the nipd-au circuit board through a metal wire in the nipd-au circuit board, and the optical coupling member 123 is fixedly connected to the nipd-au circuit board through an optical adhesive.
The optical network card 10 adopts the flexible circuit module 13 to electrically connect the circuit substrate 121 with the main circuit module 14, and components or structures such as a plug, a slow start chip, a metal tube shell and the like do not need to be additionally arranged on the main circuit module 14, so that the production cost of the optical network card 10 is effectively reduced, a flexible connection is formed between the circuit substrate 121 and the main circuit module 14, a certain displacement space is formed between the optical module 12 and the main circuit module 14, the structural tolerance generated in the production process of the optical network card 10 is overcome, the change of the coupling position between the optical coupling element 123 and the photoelectric conversion chip 124 due to the structural tolerance is avoided, the coupling efficiency between the optical coupling element 123 and the photoelectric conversion chip 124 is effectively ensured, and the working performance of the optical network card 10 is improved.
In the present embodiment, the optical fiber port 122 includes a base 1221, and an end of the optical coupling element 123 facing away from the circuit substrate 121 is clamped to the base 1221.
Specifically, as shown in fig. 3 and fig. 4, the optical fiber port 122 further includes a cover 1222, a slot 1223 is disposed on the base 1221, a clamping portion 1231 is disposed at an end of the optical coupler 123 away from the circuit substrate 121, the clamping portion 1231 is clamped in the slot 1223 of the base 1221, and the cover 1222 covers the base 1221 to seal the slot 1223, so as to effectively achieve a fixed connection between the optical coupler 123 and the optical fiber port 122.
The cover 1222 is covered on the base 1221 and then fixedly connected with the base 1221, specifically, the cover 1222 is fixedly connected with the base 1221 through a fastener; alternatively, the cover 1222 is welded to the base 1221; alternatively, the cover 1222 is fixedly connected to the base 1221 by a snap-fit structure.
In this embodiment, please refer to fig. 2, the optical network card 10 further includes a physical layer chip 15, the optical module 12 further includes a signal conditioning chip 125, both the signal conditioning chip 125 and the physical layer chip 15 are integrated on the main circuit module 14, and the signal conditioning chip 125 is located between the flexible circuit module 13 and the physical layer chip 15. Thus, the distance between the signal conditioning chip 125 and the flexible circuit module 13 and the distance between the signal conditioning chip 125 and the physical layer chip 15 can be effectively reduced, so that the radio frequency performance of the optical network card 10 can be effectively improved.
The physical layer chip 15 is an electronic chip for converting a signal of a data link layer to a physical layer and performing parallel-to-serial conversion; the signal conditioning chip 125 is used for modulating or demodulating signals to realize signal transmission between the photoelectric conversion chip 124 and the physical layer chip 15.
It should be noted that, when the photoelectric conversion chip 124 is a light emitting device, such as a vertical cavity surface emitting laser array bare chip, the signal conditioning chip 125 is a driving bare chip; when the photoelectric conversion chip 124 is a light receiving device, such as a PIN photodetector array bare chip, the signal conditioning chip 125 is an amplifier bare chip.
In the present embodiment, as shown in fig. 1 to 3, the optical fiber port 122 is provided with a heat dissipation plate 1224, the heat dissipation plate 1224 is formed by extending the optical fiber port 122 toward the main circuit module 14, and the circuit board 121 is attached to the heat dissipation plate 1224. Compared with the technical scheme that the optical module 12 is accommodated in the metal tube shell by the conventional optical network card 10, the scheme has the advantages that the circuit substrate 121 is attached to the heat dissipation plate 1224, so that the heat dissipation area of the circuit substrate 121 is effectively increased, and the heat dissipation effect of the optical module 12 is effectively improved.
Specifically, a heat conducting layer (not shown), such as a heat conducting silicone layer, is disposed between the circuit substrate 121 and the heat dissipating plate 1224, so as to effectively improve the heat conducting efficiency between the circuit substrate 121 and the heat dissipating plate 1224, and further improve the heat dissipating effect of the optical module 12.
In this embodiment, please refer to fig. 1 and fig. 3, the connection portions 1225 are disposed on two opposite sides of the optical fiber port 122, and each connection portion 1225 is fixedly connected to the network card baffle 11. Specifically, each connecting portion 1225 is a plate-shaped structure and is attached to the network card baffle 11, and each connecting portion 1225 is fixedly connected to the network card baffle 11 through a fastener, so that the assembly gap between the optical fiber port 122 and the network card baffle 11 can be effectively reduced, and the electromagnetic shielding performance of the optical fiber network card 10 is effectively improved.
In the present embodiment, one end of the flexible circuit module 13 is soldered to the circuit substrate 121 and the other end is soldered to the main circuit module 14. Specifically, a first conductive pad (not shown) is disposed at one end of the circuit substrate 121 close to the main circuit module 14, a second conductive pad (not shown) is disposed at a position of the main circuit module 14 close to the circuit substrate 121, one end of the flexible circuit module 13 is welded to the first conductive pad, and the other end of the flexible circuit module is welded to the second conductive pad, so as to electrically connect the circuit substrate 121 and the main circuit module 14.
In this embodiment, in order to meet the electromagnetic compatibility requirement of the optical network card 10, the optical fiber port 122 is a metal connector.
Of course, the fiber port 122 may also be a plastic connector, and is not particularly limited herein.
Example two
The difference between this embodiment and the first embodiment is that the fixed connection manner of the optical fiber port 122 and the optical coupling member 123 is different.
In this embodiment, the base 1221 is provided with a clamping groove 1223, one end of the optical coupling element 123 away from the circuit substrate 121 is provided with a clamping portion 1231, the clamping portion 1231 is clamped in the clamping groove 1223 of the base 1221 and is bonded in the clamping groove 1223 of the base 1221, so that the optical coupling element 123 and the optical fiber port 122 are effectively fixedly connected, and the optical fiber network card 10 is simple in structure and can be further reduced in production cost.
In order to achieve the above object, an embodiment of the present invention further provides a network device, including the above optical fiber network card.
Since the network device adopts all embodiments of the fiber network card, at least all the beneficial effects of the embodiments are achieved, and no further description is given here.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. An optical network card, comprising: the optical fiber network card comprises a network card baffle, an optical module, a flexible circuit module and a main circuit module, wherein the optical module comprises a circuit substrate, an optical fiber port connected with the network card baffle, an optical coupling piece connected between the circuit substrate and the optical fiber port, and a photoelectric conversion chip integrated on the circuit substrate, the optical coupling piece is coupled with the photoelectric conversion chip, and the circuit substrate is electrically connected with the main circuit module through the flexible circuit module.
2. The optical network card of claim 1, wherein: the optical fiber port comprises a base, and one end of the optical coupling piece, which deviates from the circuit substrate, is clamped with the base.
3. The optical network card of claim 2, wherein: the optical fiber port further comprises a sealing cover, a clamping groove is formed in the base, a clamping portion is arranged at one end, deviating from the circuit substrate, of the optical coupling piece, the clamping portion is clamped in the clamping groove of the base, and the sealing cover is arranged on the base to seal the clamping groove.
4. The optical network card of claim 2, wherein: the base is provided with a clamping groove, one end of the light coupling piece, which deviates from the circuit substrate, is provided with a clamping portion, and the clamping portion is clamped in the clamping groove of the base and is bonded in the clamping groove of the base.
5. The optical network card of claim 1, wherein: the optical fiber network card further comprises a physical layer chip, the optical module further comprises a signal conditioning chip, the signal conditioning chip and the physical layer chip are integrated on the main circuit module, and the signal conditioning chip is located between the flexible circuit module and the physical layer chip.
6. The optical network card of claim 1, wherein: the optical fiber port is provided with a heat dissipation plate, and the circuit substrate is attached to the heat dissipation plate.
7. The optical network card of claim 6, wherein: and a heat conduction layer is arranged between the circuit substrate and the heat dissipation plate.
8. The optical network card of claim 1, wherein: the opposite two sides of the optical fiber port are respectively provided with a connecting part, and each connecting part is fixedly connected with the network card baffle.
9. The optical network card of any one of claims 1-8, wherein: one end of the flexible circuit module is welded with the circuit substrate, and the other end of the flexible circuit module is welded with the main circuit module.
10. The optical network card of any one of claims 1-8, wherein: the optical fiber port is a metal joint.
11. A network device, characterized by: the network device comprises the fiber network card of any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120544283.1U CN214412745U (en) | 2021-03-16 | 2021-03-16 | Optical fiber network card and network equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120544283.1U CN214412745U (en) | 2021-03-16 | 2021-03-16 | Optical fiber network card and network equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214412745U true CN214412745U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120544283.1U Active CN214412745U (en) | 2021-03-16 | 2021-03-16 | Optical fiber network card and network equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214412745U (en) |
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2021
- 2021-03-16 CN CN202120544283.1U patent/CN214412745U/en active Active
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