CN111045162B - Optical module - Google Patents
Optical module Download PDFInfo
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- CN111045162B CN111045162B CN201911206400.7A CN201911206400A CN111045162B CN 111045162 B CN111045162 B CN 111045162B CN 201911206400 A CN201911206400 A CN 201911206400A CN 111045162 B CN111045162 B CN 111045162B
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- optical
- circuit board
- optical module
- bracket
- interface
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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
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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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- 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
- G02B6/4284—Electrical aspects of optical modules with disconnectable electrical connectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides an optical module, including: the casing and set up optical chip, optical filter and circuit board in the casing, the optical chip sets up on the circuit board and with the circuit board electricity is connected, the one end of circuit board be equipped with the golden finger that the circuit board electricity is connected, optical filter includes first light interface and second light interface, the second light interface with the optical chip links to each other through inside optic fibre, is used for linking to each other with outside optic fibre first light interface with the golden finger sets up with the same one end of casing. The optical module provided by the invention can improve the convenience of the process of replacing the optical module.
Description
The application is a divisional application with application date of 2017, 12 and 11 months, application number of 201711308265.8 and patent name of optical module.
Technical Field
The present invention relates to optical communication technologies, and in particular, to an optical module.
Background
The optical fiber communication mode is a communication mode which takes light waves as an information carrier and optical fibers as a transmission medium. The optical fiber communication mode gradually replaces communication modes such as cables and microwaves by the advantages of wider transmission frequency band, stronger anti-interference capability, smaller signal attenuation and the like, and becomes the most widely applied communication mode in the communication field.
The optical module is an important optical signal interface device in optical fiber communication, one end of the optical module is used as an optical interface to be connected with an optical fiber, and the other end of the optical module is used as an electrical interface to be connected with external communication equipment. The optical module can convert optical signals and electric signals. Fig. 1 is a schematic structural view of a light module in the related art, and fig. 2 is an exploded view of the light module in the related art. As shown in fig. 1 and 2, the optical module mainly includes a circuit board 3 and a filter 4, one end of the filter 4 is connected to an external optical fiber through an optical fiber connector 11, and the other end of the filter is connected to an optical chip 12 coupled to the circuit board 3 through an internal optical fiber, so as to transmit an optical signal in the optical module. One end of the circuit board 3 is provided with a gold finger 31 for electrically connecting with an external communication device, so as to realize transmission of electrical signals in the optical module.
The circuit board 3, the filter device 4, and the optical fiber connector 11 are enclosed in a metal case 13. The optical module can be inserted into and locked in the external communication device, and the metal shell 13 is further provided with an unlocking device 14 for releasing the locking state between the optical module and the external communication device, so that the optical module can be pulled out from the external communication device.
In general, the optical filter 4 and the gold finger 31 on the circuit board 3 are respectively located at two ends of the optical module along the length direction (i.e. the direction a in fig. 1), in fig. 1, the optical fiber connector 11 connected to the optical filter 4 is located at the left end of the optical module, and the gold finger 31 is located at the right end of the optical module.
In the application process of the optical module, when the optical modules with different rates need to be replaced, the external optical fiber connector needs to be pulled out of the optical module, and then the optical module needs to be pulled out of the external communication equipment. And then, a new optical module is inserted into the external communication equipment, and the external optical fiber connector is inserted into the optical module, wherein the inserting and pulling processes are respectively twice, so that the operation is complicated. Moreover, when the optical modules of multiple channels need to be replaced, each new optical module needs to be correctly paired with the optical fiber connectors one by one, and each new optical module is accurately inserted into the corresponding interface of the communication device, so that normal communication can be realized. The disassembling and assembling process is complex in operation, and communication failure caused by plugging errors is easy to happen.
Disclosure of Invention
The invention provides an optical module, which is used for improving the convenience of the process of replacing the optical module.
The present invention provides an optical module, including: the casing and set up optical chip, optical filter and circuit board in the casing, the optical chip sets up on the circuit board and with the circuit board electricity is connected, the one end of circuit board be equipped with the golden finger that the circuit board electricity is connected, optical filter includes first light interface and second light interface, the second light interface with the optical chip links to each other through inside optic fibre, is used for linking to each other with outside optic fibre first light interface with the golden finger sets up with the same one end of casing.
The optical module as described above, further comprising: a bracket; the filter device is fixed on the circuit board through the bracket.
In the optical module described above, the bracket has a fixing portion and a mounting portion arranged in a direction perpendicular to a surface of the circuit board; the bracket by the fixed part is fixed to be set up on the circuit board, filter sets up in the installation department.
The optical module as described above, the mounting portion includes: a first limiting part; the bottom end of the first limiting portion is fixed to the top face of the fixing portion, and a first concave portion for supporting the light filtering device is arranged at the top end of the first limiting portion.
The optical module as described above, the mounting portion further includes: the bottom end of the second limiting part is fixed on the fixing part, and the second limiting part and the first limiting part are arranged along the length direction of the circuit board; a second concave part is arranged at the top end of the second limiting part;
the first optical interface in the optical filter device is accommodated in the first recess, and the second optical interface is accommodated in the second recess.
In the optical module, a first gap is formed between the first limiting part and the second limiting part along the length direction of the circuit board;
the optical filter device further includes: a connection part connected between the first optical interface and the second optical interface;
the mounting portion further includes: the elastic sheet is inserted into the first gap; the middle part of the elastic sheet is provided with an arch part protruding towards the first limiting part; the connecting portion is disposed in a space formed by the arching portion and the second limiting portion.
As described above, the bottom end of the arch part is provided with the supporting part, and the supporting part is located below the first optical interface and the connecting part and is used for supporting the first optical interface and the connecting part.
As for the optical module, two sides of the elastic sheet are respectively provided with a positioning part extending towards the first limiting part; the positioning part is attached to the outer side of the first limiting part.
In the optical module, the bottom of the fixing portion is provided with a screw hole, and the fixing portion is fixed on the circuit board by a screw penetrating through the screw hole.
In the optical module, the bottom of the fixing portion is provided with a positioning column, and the positioning column is connected with a positioning hole arranged on the circuit board in a matching manner so as to position the bracket.
In the technical scheme provided by the invention, an optical chip, a filter device and a circuit board are arranged in a shell of an optical module, wherein the optical chip for processing an optical-electrical signal is arranged on the circuit board and is electrically connected with the circuit board, one end of the circuit board is provided with a golden finger for transmitting the electrical signal, the filter device for transmitting the optical signal comprises a first optical interface and a second optical interface, the second optical interface is connected with the optical chip through an internal optical fiber to realize the transmission of the optical signal in the optical module, the first optical interface is connected with an external optical fiber to realize the transmission of the optical signal between the optical module and external equipment, the first optical interface and the golden finger of the filter device are arranged at the same end in the shell, so that in the process of replacing the optical module, the old optical module is only required to be pulled out from the external connector, a new optical module is inserted into the external connector, and the replacement of the optical port and the electrical port in the optical module can be simultaneously completed only by plugging, the operation steps are simplified, and the probability of errors in pairing of the optical module, the optical fiber connector and the communication equipment in the replacement process is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of a light module in the related art;
fig. 2 is an exploded view of a light module in the related art;
fig. 3 is an exploded view of a light module according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bracket in an optical module according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a filter in an optical module according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of an elastic sheet in an optical module according to a second embodiment of the present invention;
fig. 7 is an installation view of a filter and a bracket in an optical module according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of an optical module according to a second embodiment of the present invention, in which a filter is fixed on a bracket;
fig. 9 is a top view of an optical filter device fixed on a bracket in an optical module according to a second embodiment of the present invention;
fig. 10 is a schematic structural diagram of a bracket in an optical module according to a third embodiment of the present invention;
fig. 11 is a view illustrating an installation of a bracket and a circuit board in an optical module according to a third embodiment of the present invention;
fig. 12 is a schematic structural view of an optical module according to a third embodiment of the present invention after a bracket and a circuit board are assembled;
fig. 13 is a partial schematic view of an optical module according to a third embodiment of the present invention;
fig. 14 is a schematic structural diagram of an external connector according to a third embodiment of the present invention;
fig. 15 is a schematic structural diagram of the external connector and the optical module according to the third embodiment of the present invention.
Reference numerals:
11-a fiber optic connector; 12-an optical chip;
13-a metal housing; 14-an unlocker;
2-a shell; 21-an upper shell;
211-light port protection; 22-a lower housing;
221-electric mouth guard; 3-a circuit board;
31-gold finger; 32-a via hole;
33-positioning holes; 4-a filter device;
41-an internal optical fiber; 42-first optical interface
43-a connecting part; 44-a second optical interface;
5-a bracket;
51-a fixed part; 511-screw holes;
512-positioning columns; 52-a mounting portion;
521-a first limiting part; 522-a first recess;
523-a second limiting part; 524-a second recess;
525-a first gap; 526-first positioning portion;
53-spring plate; 531-arching;
532-a support; 533-a second positioning section;
6-screw; 7-an external connector;
71-an electrical outlet; 72-optical plug.
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Fig. 3 is an exploded view of an optical module according to an embodiment of the present invention. As shown in fig. 3, the present embodiment provides an optical module, including: a housing 2, and a circuit board 3, an optical chip (not labeled in fig. 3) and a filter device 4 disposed within the housing 2. The optical chip is disposed on the circuit board 3 and electrically connected to the circuit board 3.
The optical chip may be a chip, and can receive an optical signal and generate a corresponding electrical signal according to the optical signal to provide to the circuit board 3; and can convert the electrical signal provided by the circuit board 3 into an optical signal and output the optical signal. Or, the optical chip is divided into: the laser comprises a laser, a laser driving chip, a detector and a detector driving chip, wherein the laser is used for emitting optical signals according to the electrical signals provided by the laser driving chip, and the detector is used for receiving the optical signals and generating electrical signals to be provided to the detector driving chip. No matter what structure is adopted, the optical chip is arranged on the circuit board 3 and is correspondingly electrically connected with the circuit board 3 so as to realize the conversion processing of photoelectric signals.
The optical filter device 4 is used for receiving an externally transmitted optical signal and preprocessing the optical signal, for example: and filtering interference signals in the optical signals, or filtering other unspecific optical signals aiming at specific optical signals which can be processed by the optical chip, and the like so as to ensure that the optical signals input to the optical chip are optical signals containing effective information.
The filter device 4 has a first optical interface for connection to an external optical fibre (not shown in fig. 3) and a second optical interface for connection to the optical chip via an internal optical fibre 41.
In the photoelectric conversion stage, the optical filter device 4 receives the optical signal from the external optical fiber, pre-processes the optical signal, and transmits the optical signal to the optical chip through the internal optical fiber 41. The optical chip converts the optical signal into an electrical signal and supplies it to the circuit board 3. In the electro-optical conversion stage, the optical chip converts the electrical signal provided by the circuit board 3 into an optical signal, and sends the optical signal to the optical filter device 4 through the internal optical fiber 41, and the optical filter device 4 outputs the optical signal to the external optical fiber.
A gold finger 31 is disposed at one end of the circuit board 3 along the length direction (i.e., the direction a in fig. 3), and the gold finger 31 is disposed in the housing 2 on the same side as the first optical interface of the optical filter device 4.
The first optical interface of the optical filter device 4 and the golden finger 31 are arranged at the same end of the shell 3, which is equivalent to the same end of the whole optical module, so that one end of the optical module is connected with an external connector, and can be connected with an external optical fiber and external communication equipment at the same time.
In the technical solution provided in this embodiment, an optical chip, a filter device, and a circuit board are disposed in a housing of an optical module, wherein the optical chip for processing an optical electrical signal is disposed on the circuit board and electrically connected to the circuit board, one end of the circuit board is disposed with a gold finger for transmitting an electrical signal, the filter device for transmitting an optical signal includes a first optical interface and a second optical interface, the second optical interface is connected to the optical chip through an internal optical fiber to realize transmission of the optical signal in the optical module, the first optical interface is connected to an external optical fiber to realize transmission of the optical signal between the optical module and an external device, the first optical interface and the gold finger of the filter device are disposed at the same end of the housing, so that in the process of replacing the optical module, only the old optical module needs to be pulled out from the external connector, the new optical module is inserted into the external connector, and the optical port and the electrical port in the optical module can be replaced at the same time only by, the operation steps are simplified, and the probability of errors in pairing of the optical module, the optical fiber connector and the communication equipment in the replacement process is reduced.
Example two
In this embodiment, on the basis of the above embodiments, the implementation manner of the optical module is optimized, and especially, the arrangement manner of the optical filter device 4 is further optimized.
The filter device 4 may be fixed to the housing 2 or may be fixed to the circuit board 3. For the manner of fixing on the circuit board 3, the filter device 4 may be arranged in a lateral direction with respect to the circuit board 3, the lateral direction referring to a direction parallel to the surface of the circuit board 3, i.e., a B direction in fig. 3. The filter device 4 may also be arranged with the circuit board 3 in a longitudinal direction, which refers to a direction perpendicular to the surface of the circuit board 3, i.e. the C direction in fig. 3.
In this embodiment, the optical filter device 4 and the circuit board 3 are arranged along the longitudinal direction, so that the transverse width of the optical modules remains unchanged, the layout size of at least two optical modules arranged along the transverse direction is not affected, and the number of the optical modules that can be arranged in a fixed space is also not affected.
The filter device 4 is fixed on the circuit board 3 by using an additional clamping member, or by using an adhesive, or the structure of the filter device 4 or the circuit board 3 may be modified, for example: a clamping part is arranged on the optical filter 4, and the optical filter 4 is directly clamped on the circuit board 3 through the clamping part.
As shown in fig. 3, the present embodiment employs a bracket 5, and the filter device 4 is fixed to the circuit board 3 via the bracket 5. One end of the bracket 5 is fixed to the circuit board 3, and the other end is used to fix the filter 4.
Specifically, fig. 4 is a schematic structural diagram of a bracket in an optical module according to a second embodiment of the present invention. As shown in fig. 4, the bracket 5 has a fixing portion 51 and a mounting portion 52, the fixing portion 51 and the mounting portion 52 being laid out in the longitudinal direction, that is: running in a direction perpendicular to the surface of the circuit board 3 (direction C in fig. 3). The fixing portion 51 is fixed to the circuit board 3, and the filter 4 is disposed in the mounting portion 52.
According to the structure of the filter 4, the mounting portion 52 may be provided with a recess, a retainer, or the like for fitting and fixing the filter 4.
In the present embodiment, the mounting portion 52 includes: the bottom end of the first position-limiting portion 521 is fixed on the top surface of the fixing portion 51, a first concave portion 522 is disposed at the top end of the first position-limiting portion 521, and the first concave portion 522 is used for supporting the optical filter device 4. The size of the first recess 522 may be set according to the size of the filter 4, so that the filter 4 can be embedded in the first recess 522 to prevent the filter 4 from moving laterally. And the filter device 4 is restricted from moving longitudinally under the press fit of the housing 2.
The embodiment further provides a specific implementation manner of the filter device 4: fig. 5 is a schematic structural diagram of a filter in an optical module according to a second embodiment of the present invention. As shown in fig. 5, the filter device 4 includes: a first optical interface 42, a connection portion 43, and a second optical interface 44. The internal optical fiber 41 has one end connected to the second optical interface 44 and the other end connected to the optical chip. The connecting portion 43 has one end connected to the first optical interface 42 and the other end connected to the second optical interface 44. Specifically, one end of the connecting portion 43 may be sleeved outside the first optical interface 42 and fixedly connected to the outer surface of the first optical interface 42. With respect to the filter device 4, the mounting portion 52 of the bracket 5 further includes: the bottom end of the second position-limiting portion 523 is fixed to the fixing portion 51, and a second concave portion 524 is disposed at the top end of the second position-limiting portion 523. The second limiting portion 523 and the first limiting portion 521 are arranged along the length direction of the circuit board. The first optical interface 42 is received in the first recess 522, and the second optical interface 44 is received in the second recess 524. The shape and size of the first recess 522 can be set according to the shape and size of the first optical interface 42, and the shape and size of the second recess 524 can be set according to the shape and size of the second optical interface 44.
As seen in the views of fig. 3 to 5, the gold finger 31 is located on the right side of the circuit board 3. In the filter device 4, the first optical interface 42 is located on the right side, the internal optical fiber 41 is located on the left side, and the second optical interface 44 is located on the left side. In the bracket 5, the first stopper 521 is located on the right side, and the second stopper 523 is located on the left side. The first concave portion 522 on the first position-limiting portion 521 is used for assembling the first optical interface 42, and the second concave portion 524 on the second position-limiting portion 522 is used for assembling the second optical interface 44, so that the first optical interface 42 and the gold finger 31 are both located on the right side of the optical module and are used for connecting with an external optical fiber and an external device.
Fig. 6 is a schematic structural diagram of an elastic piece in an optical module according to a second embodiment of the present invention, fig. 7 is an installation view of a filter and a bracket in the optical module according to the second embodiment of the present invention, fig. 8 is a schematic structural diagram of the optical filter in the optical module according to the second embodiment of the present invention fixed to the bracket, and fig. 9 is a top view of the optical filter in the optical module according to the second embodiment of the present invention fixed to the bracket.
On the basis of the above technical solution, as shown in fig. 6 to 9, a first gap 525 is disposed between the first position-limiting portion 521 and the second position-limiting portion 523 along the length direction of the circuit board 3. The mounting portion 52 further includes: the elastic piece 53, the elastic piece 53 is disposed in the first gap 525, and the middle of the elastic piece 53 has an arch portion 531 protruding toward the first position-limiting portion 521. The connection portion 43 may be disposed in a space formed by the arch portion 531 and the second stopper portion 523.
Specifically, a first positioning portion 526 is disposed at an end of the first stopper 521 away from the second stopper 523. When the distance d between the arch portion 531 and the first positioning portion 526 in the natural state is smaller than the thickness h of the connecting portion 43, when the filter device 4 is mounted on the mounting portion 52, the connecting portion 43 is located in the first recessed portion 522, the connecting portion 43 applies a pushing force to the arch portion 531 on the spring piece 53 in the direction toward the second positioning portion 523, the spring piece 53 is urged to deform and accumulate elastic potential energy, and the elastic action of the spring piece 53 can press the connecting portion 43 between the arch portion 531 and the first positioning portion 526.
Further, a support portion 532 is further disposed at the bottom end of the arch portion 531, and the support portion 532 extends toward the first limiting portion 521. The support 532 is located at the bottom of the connection portion 43 and the first optical interface 42, and is used for supporting the connection portion 43 and the first optical interface 42.
Preferably, the supporting portion 532 is stepped to form a stepped structure with the connecting portion 43 and the first optical interface 42, so as to support the connecting portion 43 and the first optical interface 42.
Still further, both sides of the elastic sheet 53 are respectively provided with a positioning portion, and the positioning portion on the elastic sheet 53 is called as: and a second positioning portion 533, wherein the second positioning portion 533 extends toward the first position-limiting portion 521. The elastic piece 53 is assembled in the first gap 525, and the second positioning portions 533 at the two ends are attached to the outer side of the first limiting portion 521, so that the elastic piece 53 is limited to move transversely (i.e., the elastic piece 52 is limited to move along the direction B in fig. 3), and the situation that the optical filter device 4 is loosened due to the fact that the arched portion 531 is dislocated and cannot compress the connecting portion 43 is avoided.
EXAMPLE III
The present embodiment is based on the above embodiments, and the implementation manner of the optical module is optimized, and particularly, the manner of fixing the bracket 5 and the circuit board 3 is further optimized.
The bracket 5 is fixed to the circuit board 3 by bonding, or by screwing or riveting. This embodiment provides a specific fixed mode:
fig. 10 is a schematic structural diagram of a bracket in an optical module according to a third embodiment of the present invention, fig. 11 is an installation view of the bracket and a circuit board in the optical module according to the third embodiment of the present invention, and fig. 12 is a schematic structural diagram of the bracket and the circuit board in the optical module according to the third embodiment of the present invention after assembly.
As shown in fig. 10 to 11, a screw hole 511 is provided in the bottom of the fixing portion 51 of the bracket 5, and a through hole 32 is also provided in correspondence with the circuit board 3. The screw 6 is adopted to sequentially pass through the through hole 32 and the screw hole 511 from the bottom of the circuit board 3 upwards and is screwed, so that the bracket 5 and the circuit board 3 are fixedly connected.
The number of screw holes 511 may be at least two, for example: two screw holes 511 are provided at the bottom of the fixing portion 51 and symmetrically arranged at both ends of the bottom surface of the fixing portion 51. At corresponding positions of the circuit board 3, two through holes 32 are also provided.
Furthermore, a positioning post 512 may be disposed at the bottom of the fixing portion 51, and a positioning hole 33 may be disposed at a corresponding position of the circuit board 3. Before assembling the screws, the positioning columns 512 are inserted into the positioning holes 33 to pre-position the fixing parts 51, so that the bracket 5 is prevented from moving relative to the circuit board 3 in the screw assembling process, and the assembling efficiency is improved. The number of the positioning posts 512 may be at least two, and the positioning posts are symmetrically disposed at two ends of the bottom surface of the fixing portion 51, and two positioning holes are also disposed at corresponding positions of the circuit board 3.
Alternatively, the positioning hole may be provided at the bottom of the fixing portion 51, and the positioning post may be provided on the circuit board 3, thereby achieving the function of pre-positioning the bracket 5.
In fig. 10 and 11, two positioning posts 512 and one screw hole 511 are provided on the bottom surface of the fixing portion 51, two positioning holes 33 and one through hole 32 are provided at corresponding positions of the circuit board 3, and the two positioning posts 512 are inserted into the corresponding positioning holes 33, respectively, for pre-positioning the bracket 5. Screws pass through the through holes 32 and the screw holes 511 in sequence from the lower part of the circuit board 3, and the bracket 5 is fixedly connected with the circuit board 3.
In the above technical solution, the optical filter 4 is fixed on the circuit board 3 by using the bracket 5, the first optical interface 42 at the right end of the optical filter 4 is used as the optical port of the optical module, the gold finger 31 in the circuit board 3 is used as the electrical port of the optical module, and the optical port and the electrical port are located on the same side of the optical module, as shown in fig. 12. The optical port and the electrical port of the optical module are used for connecting with an external connector.
As shown in fig. 3, the housing 2 may specifically include an upper housing 21 and a lower housing 22, and the upper housing 21 and the lower housing 22 may be fixedly connected by screws or by clamping. The same side end of the upper shell 21 and the lower shell 22 is respectively provided with an optical port protection part 211 and an electrical port protection part 221, the optical port protection part 211 is covered outside the optical filter device 4, and the electrical port protection part 221 is located at the bottom of the golden finger 31 and is respectively used for protecting the optical filter device 4 and the golden finger 31 and avoiding deformation caused by external force. Fig. 13 is a partial schematic view of an optical module according to a third embodiment of the present invention, and fig. 13 is a diagram of an assembled optical module.
The above-mentioned optical module may be connected to an external communication device through an external connector, which in the prior art is provided with only a socket for connecting with the gold finger 31.
Aiming at the technical scheme provided by each embodiment, the external connector is adjusted correspondingly. Fig. 14 is a schematic structural diagram of an external connector according to a third embodiment of the present invention, and fig. 15 is a schematic structural diagram of an external connector according to a third embodiment of the present invention and an optical module.
As shown in fig. 14 and 15, the external connector 7 is provided with both an electrical socket 71 for connection with the gold finger 31 and an optical plug 72 for connection with the optical filter device 4, and the positional relationship of the optical plug 72 and the electrical socket 71 is set corresponding to the positional relationship of the optical filter device 4 and the gold finger 31. In the above embodiment, the filter device 4 and the gold finger 31 are arranged in the direction perpendicular to the circuit board 3, and the optical plug 72 and the electrical socket 71 are correspondingly arranged in the direction perpendicular to the circuit board 3.
One end of the optical plug 72 is inserted into the optical filter device 4, in particular into the first optical interface 42, and the other end is used for plugging with an external optical fiber. The number of the optical plugs 72 is two, and they are used as optical signal input and output, respectively.
One end of the electric socket 71 is used for being plugged with the gold finger 31, and the other end of the electric socket is used for being plugged with external communication equipment, and electric connection is achieved.
The optical plug 72 and the electrical plug 71 are simultaneously arranged on the external connector 7, so that the electrical port and the optical port can be simultaneously connected when the optical module is plugged, and the plugging efficiency is improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered 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 at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. An optical module, comprising
An upper housing;
a lower case combined with the upper case to form a cavity having an opening;
a circuit board clamped between the upper case and the lower case, a gold finger for electrical connection being provided outside the opening;
the optical interface is positioned between the circuit board and the upper shell, one end of the optical interface extends to the outside of the opening, is used for connecting optical fibers to the outside, and is arranged at the same end of the cavity with the golden finger;
and the bracket is arranged between the circuit board and the optical interface and used for isolating the circuit board from the optical interface.
2. The optical module of claim 1, wherein the bracket comprises a spring having a raised arch; the other end of the optical interface is provided with a connecting part, and the connecting part is arranged on the arch part.
3. The optical module of claim 2, wherein the bottom end of the arch is further provided with a support for supporting the optical interface.
4. The optical module according to claim 1, wherein the bracket has a fixing portion and a mounting portion arranged in a direction perpendicular to the surface of the circuit board; the bracket is fixed by the fixed part and sets up on the circuit board, the light interface set up in the installation department.
5. The optical module according to claim 4, wherein the mounting portion includes a first position-limiting portion and a second position-limiting portion, a bottom end of the second position-limiting portion is fixed to the fixing portion, and the second position-limiting portion and the first position-limiting portion are arranged along a length direction of the circuit board; a second concave part is arranged at the top end of the second limiting part; the optical interface is received in the second recess.
6. The optical module according to claim 4, wherein a bottom of the fixing portion is provided with a screw hole, and the fixing portion is fixed to the circuit board by a screw inserted into the screw hole.
7. The optical module as claimed in claim 4, wherein a positioning post is disposed at a bottom of the fixing portion, and the positioning post is connected to a positioning hole disposed on the circuit board in a fitting manner to position the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911206400.7A CN111045162B (en) | 2017-12-11 | 2017-12-11 | Optical module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911206400.7A CN111045162B (en) | 2017-12-11 | 2017-12-11 | Optical module |
| CN201711308265.8A CN108051893B (en) | 2017-12-11 | 2017-12-11 | Optical module |
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| CN201711308265.8A Division CN108051893B (en) | 2017-12-11 | 2017-12-11 | Optical module |
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| CN111045162B true CN111045162B (en) | 2021-07-13 |
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| CN109495186B (en) * | 2018-11-29 | 2021-04-02 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN109407232B (en) * | 2018-12-14 | 2021-07-06 | 武汉光迅科技股份有限公司 | Optical module |
| CN113359246A (en) * | 2020-03-06 | 2021-09-07 | 华为技术有限公司 | Light source module, optical communication single board and optical communication system |
| CN113473701A (en) * | 2020-03-31 | 2021-10-01 | 华为技术有限公司 | Optoelectronic component, network device and method for producing an optoelectronic component |
| US11215773B1 (en) * | 2020-06-14 | 2022-01-04 | Mellanox Technologies Denmark Aps | Pluggable laser module with improved safety |
| CN114077019B (en) * | 2020-08-18 | 2022-09-23 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN114077020A (en) * | 2020-08-18 | 2022-02-22 | 华为技术有限公司 | Composite module and method for manufacturing the same |
| CN117040635A (en) * | 2020-08-20 | 2023-11-10 | 华为技术有限公司 | Light source module and optical communication device |
| CN115835061A (en) * | 2021-09-16 | 2023-03-21 | 中兴通讯股份有限公司 | Pluggable light source module and optical communication equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108051893B (en) | 2020-01-07 |
| CN111045162A (en) | 2020-04-21 |
| CN108051893A (en) | 2018-05-18 |
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Effective date of registration: 20221121 Address after: 266555, No. 218, Bay Road, Qingdao economic and Technological Development Zone, Shandong Patentee after: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES Co.,Ltd. Patentee after: HUAWEI TECHNOLOGIES Co.,Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Patentee before: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES Co.,Ltd. |